Horn for vehicle

Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to a horn for a vehicle, more precisely relates to a trumpet horn for a vehicle.

[0002] A horn is provided to a vehicle, e.g., automobile, motorbike, as a safety equipment. Generally, an electric power supplied from a battery of a vehicle oscillates an oscillation member, and thereby a horn outputs a warning sound. A disk horn, which is disclosed, for example, in Japanese Patent Gazette No. P1997-305181A, and a trumpet horn, which is disclosed, for example, in a web page whose URL is "http://www.maruko-hom.co.jp/seihin/trumpet_wide.html" and searched on 7th November 2007.

[0003] In the trumpet horn disclosed in said web page, rain drops and sands will invade into a sound output section, from which a warning sound is outputted outward. Therefore, sound output sections of most of trumpet horns attached to vehicles are faced to the ground surface.

[0004] A main purpose of the horn is to call attentions of other drivers and pedestrians by warning sound. In case that the sound output section of the trumpet horn is faced to the ground surface as described above, the warning sound will be attenuated before reaching other drivers or pedestrians. These days, a number of apparatuses are densely attached in a bonnet of a vehicle, in which the horn is also attached. Therefore, the warning sound of the horn will be significantly attenuated in the tight space. Namely, conventional horns insufficiently work.

[0005] If the horn is attached near a grill of the bonnet so as to merely reduce a distance between the horn and the outside and the sound output section is headed outward, the attenuation of the warning sound can be solved. However, foreign matters, e.g., rain drops, sands, easily invade into the sound output section and cause troubles. Fundamental structural modification of horns has been required.

[0006] GB-A-1,181,817 discloses a vehicle horn having a body containing a diaphragm. The body has a sound output section with a slotted cover. The body, diaphragm and cover have an elongated section, e.g. a horizontally elongate hexagon.

[0007] DE-A-3 723 693 discloses a horn for a vehicle, comprising:
an oscillation member; a sound path which is spirally formed around a center axis of the oscillation member and in which a distance from the center axis is gradually increased toward an outer end; and a sound output section being provided to the outer end portion of the sound path which extends horizontally in use, the sound output section outputting sound waves, which have passed through the sound path, wherein the opening part of the sound output section is directed in the advancing direction of the vehicle.

[0008] FR 2607951 discloses a horn for a vehicle, comprising an oscillation member, a sound path which is spirally formed around a center axis of the oscillation member and in which a distance from the center axis is gradually increased toward an outer end, a sound output section being provided to the outer end portion of the sound path which extends horizontally in use, the sound output section outputting sound waves which have passed through the sound path, wherein the opening part has an elongated configuration and is directed in the advancing direction of the vehicle, and having a plurality of unequally spaced plate members vertically provided to a connection part between the sound path and the sound output section, serving to resist invasion of foreign matter, projecting in the direction of the short axis of the opening part.

SUMMARY OF THE INVENTION

[0009] The present invention is characterized in that an opening part of the sound output section has an elongated configuration; wherein a long axis of the opening part is arranged in the vertical direction when the horn is attached to the vehicle; wherein a shielding plate is provided to the sound output section, so as to hide the sound path when the sound path is viewed from the sound output section side, the shielding plate being a lattice or rough mesh and serving to resist the invasion of foreign matter; and wherein a plurality of uniformly spaced plate members are vertically provided to a connection part between the sound path and the sound output section for further resisting invasion of foreign matter, the plate members projecting in the direction of the long axis of the opening part.

[0010] Preferably a surface of each said plate member is arranged perpendicular to a propagation direction of the sound waves propagating in the sound path.

[0011] An object of the present invention is to provide a horn for a vehicle, which is capable of preventing foreign matters from invading into a sound output section and highly preventing attenuation of a warning sound.

[0012] Since the sound output section is connected to a part of the sound path which extends horizontally, invasion of foreign matter can be resisted.

[0013] The shielding plate assists in preventing invasion of foreign matters, e.g., rain drops, sands, even if the sound output section is directed to a moving direction of the vehicle.

[0014] The horn includes a plurality of the plate members. The height of each of the plate members may be gradually increased from the upstream side of the sound path to the downstream side thereof wherein the height is the dimension of the plate member in the direction perpendicular to the long axis of the opening part.

[0015] The length of each of the plate members may be gradually increased from the upstream side of the sound path to the downstream side thereof wherein the length is the dimension parallel to the long axis of the opening part.

[0016] By employing the above described structures, the sound waves propagating in the sound path can be smoothly introduced to the sound output section, so that attenuation of the sound waves can be prevented and a loud warning sound can be outputted. Further, even if the sound output section is directed to the moving direction of the vehicle, invasion of foreign matters, e.g., rain drops, sands, can be suitably resisted.

[0017] In the horn, a small section part, which reduces a sectional passage area of the sound path, may be provided between the sound path and the sound output section. With this structure, invading foreign matters from the sound output section into the sound path can be suitably resisted.

[0018] In the horn, a front end part of each of the plate members is formed into a slope face, whose height is gradually increased from the upstream side of the sound path to the downstream side thereof in the thickness direction of the plate members or the propagation direction of the sound waves.

[0019] In the horn, a foreign matter trapping space may be formed in an outermost part of the sound path and expanded outward.

[0020] In the horn, a configuration of a connection part between the foreign matter trapping space and the sound path may be defined by a downstream side tangent line and an upstream side tangent line, which are mutually connected,
the downstream side tangent line, which is defined by a side wall face of a downstream side connection part of the sound path, may be directed to the inner side of the foreign matter trapping space, and
the upstream side tangent line, which is defined by a side wall face of an upstream side connection part of the sound path, may be directed to the inner side of the sound path which is on the inner side of the side wall face defining the downstream side tangent line.

[0021] With the above described structures, even if foreign matters invade into the sound path, the foreign matters are trapped by the foreign matter trapping space. Therefore, no foreign matters invade into the inner part of the sound path, so that damaging the horn can be prevented.

[0022] The horn may comprise a main body section including
a sound path formed into a spiral path and a sound output section provided to an outer end of the sound path, and
a first member having a partition wall and a through-hole penetrating the partition wall in the thickness direction; and
a second member having a partition wall, a side wall, a spiral plate, which is provided on the partition wall and whose one end is corresponded to the through-hole of the first member, and a sound output section, which is provided to the other end of the spiral plate and which has an opening part directed in a direction perpendicular to a surface of the spiral plate,
wherein the partition wall, the side wall, the spiral plate and the sound output section are integrally formed and wherein the side wall of the second member and an end face of the spiral plate are connected to a wall face of the partition wall of the first member.

[0023] In the horn, a side wall may be integrally formed on an outer edge of the partition wall of the first member.

[0024] In the horn, the plate members may be integrally formed with the partition wall of the first member and face the other end of the spiral plate, and
a surface of each of the plate members may be arranged perpendicular to a propagation direction of sound waves.

[0025] In the horn, the small section part, which reduces a sectional passage area of the sound path and which is placed on the upstream side of the plate member, may be integrally formed with the partition wall of the first member.

[0026] In the horn, a shielding plate may be integrally formed with the sound output section of the second member.

[0027] With the above described structures, the horn can be easily assembled. Especially, even if the small parts, e.g., the shielding plate, the plate member, the small section part, are used, the horn can be easily assembled, and thereby the horn can be efficiently produced and production cost can be reduced.

[0028] In the horn of the present invention, the opening part of the sound output section is directed in the moving direction of the vehicle, so that the sound waves (warning sound) generated by the oscillation member can be outputted, as a loud sound, toward other drivers and pedestrians. Further, the sound path communicated to the sound output section is deviated from the moving direction of the vehicle, so that invasion of foreign matters from the sound output section into the sound path (the inner part of the main body section) can be suitably prevented. Since the invasion of foreign matters can be prevented and the sound output section can be directed in the moving direction of the vehicle, attenuation of the sound waves can be highly restrained even if the horn is attached in a tight space, e.g., bonnet.

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Embodiments of the present invention will now be described by way of examples and with reference to the accompanying drawings, in which:

Fig. 1 is a front view of a horn of an embodiment of the present invention;

Fig. 2 is an exploded perspective view of a main body section of the horn seen from a front side;

Fig. 3 is an exploded perspective view of the main body section of the horn seen from a rear side;

Fig. 4 is a front view of the horn, wherein propagation of sound waves is explained;

Fig. 5 is a sectional view taken along a line A-A in Fig. 1;

Fig. 6 is a sectional view taken along a line B-B in Fig. 1;

Fig. 7 is a partially cutaway view of the horn, wherein inner structures of a sound output section and a guide path are shown; and

Fig. 8 is an explanation view of a foreign matter trapping space.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Fig. 1 is a front view of a horn of the present embodiment; Fig. 2 is an exploded perspective view of a main body section of the horn seen from a front side; Fig. 3 is an exploded perspective view of the main body section of the horn seen from a rear side; Fig. 4 is a front view of the horn, wherein propagation of sound waves is explained; Fig. 5 is a sectional view taken along a line A-A in Fig. 1; and Fig. 6 is a sectional view taken along a line B-B in Fig. 1.

[0031] As shown in Fig. 1, the horn 10 of the present embodiment is constituted by a main body section 40, which includes an oscillation member 20 (see Fig. 5) for generating sound waves, i.e., warning sound, and a sound path 30 being formed into a sound path for guiding the sound waves, and a tubular sound output section 70 for outputting the sound waves, which has propagated in the sound path 30, frontward. In the present embodiment, the sound output section 70 is connected to a part of the sound path, which is horizontally extended. An attaching plate 80, which is used to attach the horn 10 to a vehicle (not shown), is provided to a rear face of the main body section 40. An opening part of the sound output section 70 is directed in the advancing direction of the vehicle and a long axis of the opening part is arranged in the vertical direction when the horn is attached to the vehicle.

[0032] As shown in Figs. 2 and 3, the main body section 40 of the horn 10 includes: a first member 50 having an accommodating part 51, in which the oscillation member 20 is accommodated; and a second member 60 having the sound output section 70 for outwardly outputting the sound waves, which has been generated by the oscillation member 20, reflected in the direction perpendicular to the oscillating direction and propagated around a center axis 22 of the oscillation member 20 perpendicular to a surface of the oscillation member 20 (see Fig. 5), from the spiral path 32 in the direction parallel to the center axis 22 of the oscillation member 20.

[0033] A communication hole 54, which communicates the accommodating part 51 to the sound path 30 of the second member 60, is formed in a center part of a partition wall 52 of the first member 50. In the present embodiment, the center of the communication hole 54 is corresponded to the center axis 22 of the oscillation member 20. A side wall 53, which constitutes the accommodating part 51 with the partition wall 52, is formed along an outer edge of the partition wall 52. On the front side of the partition wall 52 or the rear side of the accommodating part 51, plate members 56 are provided to an outer end of the sound path 30 and perpendicularly extended from the surface of the partition wall 52.

[0034] In the present embodiment, two kinds of the plate members 56, i.e., first plate members 56A and second plate members 56B, and they are differently arranged on the partition wall 52. Namely, the first plate members 56A are obliquely extended with respect to the vertical direction when the horn 10 is actually attached to the vehicle; the second plate members 56B are extended in the vertical direction when the horn 10 is actually attached to the vehicle, are used. The first plate members 56A and the second plate members 56B are integrated with the side wall 53 and the partition wall 52.

[0035] Further, on the outer edge of the partition wall 52 of the first member 50, a projected part 58 is formed on the opposite side of the plate members 56 and outwardly projected from the partition wall 52.

[0036] A connection part between the projected part 58 and the side wall 53, which corresponds to the outer wall of the sound path 30, will be explained with reference to Fig. 4. In the connection part 59A on the sound output section 70 side (on the downstream side of the sound path 30), a downstream side tangent line T1, which is defined by an inner side wall face of the side wall 53, is directed to the projected part 58; in the connection part 59B on the upstream side of the sound path 30, an upstream side tangent line T2, which is defined by the side wall face of the side wall 53, is directed to the direction corresponding to the direction of the inner wall face of the side wall 53 on the connection part 59A side or directed to the inner side of the inner wall face of the side wall 53 on the connection part 59A side, i.e., the inner side of the sound path 30.

[0037] A side wall 63 is formed along an outer edge of a partition wall 62 of the second member 60. The sound output section 70 is located on the front side of the partition wall 62, which is the opposite side of the side wall 63 with respect to the partition wall 62. The tubular sound output section 70 is extended in the direction perpendicular to the surface of the partition wall 62. An opening part of the sound output section 70 is directed to the front side of the horn 10. The sound output section 70 is connected to a horizontal part of the sound path 30, which is the outer end of the sound path 30, by a guide path 64. In the guide path 64, a distance from the front surface of the partition wall 62 is gradually increased toward the sound output section 70.

[0038] The sound output section 70 is constituted by a trumpet-like funnel part 71, and a shielding plate 72 covering an outlet of the funnel part 71. The shielding plate 72 hides the sound path 30, so the sound path 30 is not directly seen from the sound output section 70 side. The shielding plate 72 is formed like a lattice or rough mesh. A narrow space 73 is formed between the shielding plate 72 and an inner face of the funnel part 71. The space 73 is communicated to spaces 56D (see Fig.6) between the second plate members 56B. A discharge hole 74 is formed in the funnel part 71 so as to communicate the space 73 to the outside of the funnel part 71 and discharge foreign matters outside. The opening part of the sound output section 70 has an elongate configuration, whose long axis is arranged in the vertical direction.

[0039] As shown in Fig. 3, a spiral plate 66 for forming the sound path 30 is provided on the rear face of the partition wall 62, which faces the first member 50. The spiral plate 66 is perpendicularly extended from the partition wall 62. A center end (an inner end) of the spiral plate 66 is corresponded to the communication hole 54 of the first member 50.

[0040] A projected part 68, whose anterior configuration is the same as that of the projected part 58 of the first member 50, is formed in the partition wall 62 of the second member 60. The projected part 68 faces the projected part 58 and forms a foreign matter trapping space 59 with the projected part 58 when the main body section 40 is formed.

[0041] In the second member 60, the partition wall 62, the guide path 64, the spiral plate 66 and the sound output section 70 are integrally formed by resin molding.

[0042] The main body section 40 is formed by the steps of: bringing the first member 50 into contact with the second member 60 and making the inner surface of the first member 50, on which the plate members 56 are formed, and the inner surface of the second member 60, on which the spiral plate 66 is formed, face each other; and applying supersonic vibration to a connection part between the first member 50 and the second member 60 so as to weld the both members 50 and 60. Therefore, the sound path 30 constituted by the spiral path is formed, in the main body section 40, by the partition wall 52 and the communication hole 54 of the first member 50, the partition wall 62, the side wall 63, the guide path 64 and the spiral plate 66 of the second member 60.

[0043] Since the plate members 56, the guide path 64, the spiral plate 66 and the sound output section 70 are previously formed in the first member 50 and the second member 60, assembling costs can be highly reduced.

[0044] As shown in Figs. 4 and 5, the oscillation member 20, which is oscillated by electricity and generates sound waves, is accommodated in the accommodating part 51 of the main body section 40. The sound waves generated by the oscillation member 20 pass through the communication hole 54 and are reflected, by the partition wall 62 of the second member 60, in the direction perpendicular to the oscillating direction of the oscillation member 20. Then, the sound waves propagate around the center axis 22 of the oscillation member 20 via the sound path 30, which is constituted by parts 30A-30E. Namely, the sound waves gradually separate away from the center axis 22 of the oscillation member 20 and propagate toward the outer part of the sound path 30.

[0045] As shown in Fig. 4, the foreign matter trapping space 59, which is formed by the projected parts 58 and 68, is formed in the outermost part of the sound path 30. In the connection part 59B between the side wall 63 and the foreign matter trapping space 59 which is located in the upstream side part of the sound path 30, the downstream side tangent line T2, which is defined by the side wall face, is directed to the center side of the sound path 30 (main body section 40) with respect to the side wall face of the connection part 59A between the foreign matter trapping space 59 and the side wall face of the sound path 30 on the downstream side. With this structure, the sound waves in the sound path 30 can propagate toward the sound output section 70 without entering the foreign matter trapping space 59.

[0046] Therefore, attenuation of the sound waves, which is caused by entering the foreign matter trapping space 59, can be prevented. The sound waves, which have spirally propagate in the sound path 30, are introduced to the sound output section 70 by the guide path 64 and the plate members 56, and then the sound waves are outputted, as a warning sound, ahead of the horn 10 or in the direction parallel to the center axis 22 of the oscillation member 20, as shown by an arrow C in Fig. 4, from the sound output section 70.

[0047] Next, the plate members 56 (56A and 56B) will be explained.

[0048] As shown in Figs. 2 and 6, the first plate members 56A, which are provided in the guide path 64 between the sound path 30 and the sound output section 70, act as a small section part, which reduces a sectional passage area of the sound path 30, which is increased by the guide path 64. The first plate member 56A are arranged to narrow the passage space toward the sound output section 70. With this structure, the sectional passage area of the sound path 30 can be reduced, so that the sound waves can be concentrated toward the sound output section 70.

[0049] The second plate members 56B are provided adjacent to the first plate members 56A and uniformly spaced. Heights of the second plate members 56B are gradually increased toward the downstream side part of the sound path 30. A front end part 56C of each of the second plate members 56B is formed into a slope face, whose height is gradually increased from the upstream side of the sound path 30 to the downstream side thereof (in the thickness direction of the second plate member 56B or the propagation direction of the sound waves).

[0050] The sound waves, which have propagated in the sound path 30, are smoothly introduced from the upstream side of the sound path 30 to the sound output section 70, as shown by an arrow Z in Fig. 6, by the front end parts 56C of the second plate members 56B. By introducing the sound waves from the sound path 30 to the sound output section 70 via the guide path 64, attenuation of the sound waves can be highly restrained by the second plate members 56B.

[0051] Fig. 7 is a partially cutaway view of the horn 10, wherein inner structures of the sound output section 70 and the guide path 64 are shown, and Fig. 8 is an explanation view of the foreign matter trapping space 59.

[0052] The plate members 56 introduce the sound waves from the sound path 30. Further, they prevent foreign matters, e.g., rain drops, sands, from invading into the sound path 30 with the shielding plate 72 of the sound output section 70.

[0053] The shielding plate 72 of the sound output section 70 is formed like a lattice and capable of preventing foreign matters from linearly invading into the sound path 30 from the sound output section 70. The shielding plate 72 suitably prevents foreign matters, e.g., a spray of water caused by running the vehicle, pressurized water for washing the vehicle, from obliquely invading with respect to the shielding plate 72 as shown by an arrow X in Fig. 7. With this structure, the shielding plate 72 of the sound output section 70 is capable of preventing most of foreign matters from invading into the sound path 30 from the direction X. Foreign matters passing through the shielding plate 72 can be caught in the spaces 56D between the second plate members 56B. Further, the first plate members 56A narrow the sound path 30, so foreign matters invading into the sound path 30 can be securely caught.

[0054] In case that foreign matters, e.g., a large amount of water splashed by a bucket, invade into the shielding plate 72 in the direction shown by an arrow Y in Fig. 7, the shielding plate 72 can reduce an invading speed of the foreign matters but cannot always reduce the amount of the foreign matters. However, most of the foreign matters can be caught in the spaces 56D between the second plate members 56B. Further, the sound path 30 is narrowed by the first plate members 56A, so that the foreign matters invading into the sound path 30 can be securely caught as well as the above described case in which the foreign matters invade in the direction X.

[0055] As shown in Fig. 8, the foreign matter trapping space 59 is smoothly connected to the side wall of the sound path 30 from the downstream side of the sound path 30. Further, the foreign matter trapping space 59 is located in a part of the sound path 30 which is horizontally extended and then extended upward.

[0056] Even if foreign matters pass through the shielding plate 72 and the first and the second plate members 56A and 56B, and invade into the sound path 30, the foreign matters are introduced into and trapped by the foreign matter trapping space 59, so that invading the foreign matters into the inner or center part of the sound path 30 can be suitably prevented.

[0057] The discharge hole 74, which is communicated to the spaces 56D between the second plate members 56B and outside of the horn 10, is formed in the sound output section 70. Foreign matters, e.g., water, which have invaded into the sound output section 70 from the directions X and Y, can be discharged to the outside of the horn 10 via the spaces 56D between the second plate members 56B, the space 73 between the funnel part 71 and the shielding plate 72, and the discharge hole 74.

[0058] In the present embodiment, the horn 10 outputs the sound waves generated by the oscillation member 20 frontward as the warning sound, so the warning sound can be efficiently outputted. Even if the opening part of the sound output section 70 is headed to the front side of the horn 10, the shielding plate 72, the first and second plate members 56A and 56B and the foreign matter trapping space 59 are capable of securely preventing foreign matters from invading into the horn 10. Therefore, a span of life of the horn 10 can be long.

[0059] The preferred embodiment of the present invention has been described, but the present invention is not limited to the above described horn 10.

[0060] In the above described embodiment, the horn 10 has the shielding plate 72, the first plate members 56A acting as the small section part and the second plate members 56. Further, the horn, which can prevent foreign matters from invading from the sound output section without using said members, may be attached to the vehicle, with the sound output section being headed in the moving direction (advancing direction) of the vehicle, as far as the horn has: the oscillation member, the sound path being formed into the spiral path, which is spirally formed around the center axis of the oscillation plate and in which the distance from the center axis is gradually increased toward the outer end; and the sound output section being provided to the outer end of the sound path, the sound output section outputting sound waves, which have passed through the sound path, in the axial direction of the center axis, and the opening part of the sound output section has the elongate configuration, whose long axis is arranged in the vertical direction.

[0061] In the above described embodiment, the sound output section 70 is connected to the horizontally extended part of the sound path 30. Further, the sound output section 70 may be connected other parts as far as number of winding the sound path 30 is three or more. The sound output section 70 need not be connected to the horizontal part of the sound path 30, so it may be connected to other parts.

[0062] In the vehicle equipped with the horn, the opening part of the sound output section 70 is directed in the advancing direction of the vehicle and the long axis of the opening part is arranged in the vertical direction, and thereby the sound waves (warning sound) generated by the oscillation member 20 can be effectively outputted, as a loud sound, forward. The invention may be embodied in other specific forms, and is defined by the appended claims.

Claims

1. A horn for a vehicle,
comprising:

an oscillation member (20);

a sound path (30) which is spirally formed around a center axis (22) of the oscillation member (20) and in which a distance from the center axis (22) is gradually increased toward an outer end; and

a sound output section (70) being provided to the outer end portion of the sound path (30), wherein the outer end portion of the sound path (30) extends horizontally in use, the sound output section (70) outputting sound waves, which have passed through the sound path (30);

wherein an opening part of the sound output section (70) outputs sound waves parallel to the center axis and, when in use, the opening part is directed in the advancing direction of the vehicle;

wherein the opening part of the sound output section (70) has an elongated configuration; wherein a plurality of plate members (56B) are vertically provided to a connection part between the sound path (30) and the sound output section;

characterized in that a long axis of the opening part is arranged in the vertical direction when the horn is attached to the vehicle; wherein a shielding plate (72) is provided to the sound output section (70), so as to hide the sound path (30) when the sound path (30) is viewed from the sound output section (70) side, the shielding plate (72) being a lattice or rough mesh and serving to resist the invasion of foreign matter; and

wherein a plurality of plate members (56B) are uniformly spaced, and the plate members (56B) are projecting in the direction of the long-axis of the opening part.

2. The horn according to claim 1 wherein a surface of each said plate member (56B) is arranged perpendicular to a propagation direction of the sound waves propagating in the sound path (30) for further resisting invasion of foreign matter.

3. The horn according to claim 1 or 2
wherein the height of each of the plate members (56B) is gradually increased from the upstream side of the sound path (30) to the downstream side thereof wherein the height is the dimension of the plate member in the direction perpendicular to the long axis of the opening part.

4. The horn according to claim 1, 2 or 3
wherein the length of each of the plate members (56B) is gradually increased from the upstream side of the sound path (30) to the downstream side thereof wherein the length is the dimension parallel to the long axis of the opening part.

5. The horn according to any one of claims 1-4,
wherein a small section part (56A), which reduces a sectional passage area of the sound path (30), is provided between the sound path (30) and the sound output section (70).

6. The horn according to any one of claims 1-5
wherein a front end part (56C) of each of the plate members (56B) is formed into a slope face, whose height is gradually increased from the upstream side of the sound path (30) to the downstream side thereof in the thickness direction of the plate members (56B) or the propagation direction of the sound waves.

7. The horn according to any one of claims 1-6,
wherein a foreign matter trapping space (59) is formed in an outermost part of the sound path (30) and expanded outward.

8. The horn according to claim 7,

wherein a configuration of a connection part between the foreign matter trapping space (59) and the sound path (30) is defined by a downstream side tangent line (T1) and an upstream side tangent line (T2), which are mutually connected,

the downstream side tangent line (T1), which is defined by a side wall face of a downstream side connection part of the sound path (30), is directed to the inner side of the foreign matter trapping space (59), and

the upstream side tangent line (T2), which is defined by a side wall face of an upstream side connection part of the spiral path (32), is directed to the inner side of the sound path (30) which is on the inner side of the side wall face defining the downstream side tangent line (T1).

9. The horn according to any one of the preceding claims having

a main body section (40) including said sound path (30) and said sound output section (70),

wherein

said main body section (40) includes:

a first member (50) having a partition wall (52) and a through-hole (54) penetrating the partition wall (52) in the thickness direction;

a second member (60) having a partition wall (62), a side wall (63), a spiral plate (66), which is provided on the partition wall (62) and whose one end is corresponded to the through-hole (54) of the first member (50), and a tubular sound output section (70), which is provided to the other end of the spiral plate (66) and which is extended in the direction perpendicular to the surface of the partition wall (62),

wherein the partition wall (62), the side wall (63), the spiral plate (66) and the sound output section (70) are integrally formed; and wherein the side wall (63) of the second member (60) and an end face of the spiral plate (66) are connected to a wall face of the partition wall (52) of the first member (50).

10. The horn according to claim 9,
wherein a side wall (53) is integrally formed on an outer edge of the partition wall (52) of the first member (50).

11. The horn according to claim 9 or 10,

wherein the plate members (56B) are integrally formed with the partition wall (52) of the first member (50) and face the other end of the spiral plate (66), and

a surface of each of the plate members (56B) is arranged perpendicular to a propagation direction of sound waves.

12. The horn according to claim 11,
wherein the small section part (56A) as defined in claim 5 is integrally formed with the partition wall (52) of the first member (50).

13. The horn according to any one of claims 9-12,
wherein said shielding plate (72) is integrally formed with the sound output section (70) of the second member (60).

14. A vehicle including a horn according to any preceding claim, the vehicle having a normal direction of travel, and the horn being mounted so that the opening part of the sound output section (70) is directed in the normal direction of travel, and the long axis of the opening part of the sound output section (70) is vertical.

Ansprüche

1. Hupe für ein Fahrzeug,
umfassend:

ein Schwingungselement (20);

einen Schallweg (30), der spiralförmig um eine Mittelachse (22) des Schwingungselements (20) herum ausgebildet ist und in dem ein Abstand von der Mittelachse (22) in Richtung eines Außenendes allmählich zunimmt; und

einen Schallaustrittsabschnitt (70), der dem Außenendabschnitt des Schallwegs (30) bereitgestellt ist, wobei sich der Außenendabschnitt des Schallwegs (30) in Verwendung horizontal erstreckt, wobei der Schallaustrittsabschnitt (70) Schallwellen austreten lässt, die durch den Schallweg (30) hindurchgetreten sind;

wobei ein Öffnungsteil des Schallaustrittsabschnitts (70) zur Mittelachse parallele Schallwellen austreten lässt, und wobei in Verwendung der Öffnungsteil in die Fahrtrichtung des Fahrzeugs gerichtet ist;

wobei der Öffnungsteil des Schallaustrittsabschnitts (70) eine langgestreckte Konfiguration aufweist; wobei eine Vielzahl von Plattenelementen (56B) einem Verbindungsteil zwischen dem Schallweg (30) und dem Schallaustrittsabschnitt vertikal bereitgestellt ist;

dadurch gekennzeichnet,

dass eine Längsachse des Öffnungsteils in die vertikale Richtung angeordnet ist, wenn die Hupe am Fahrzeug angebracht ist; wobei dem Schallaustrittsabschnitt (70) eine Abschirmplatte (72) bereitgestellt ist, um so den Schallweg (30) zu verbergen, wenn der Schallweg (30) von der Schallaustrittsabschnitts- (70) Seite betrachtet wird, wobei die Abschirmplatte (72) ein Gitter oder ein grobes Netz ist, und dazu dient, dem Eindringen von Fremdkörpern standzuhalten; und

wobei eine Vielzahl von Plattenelementen (56B) gleichmäßig voneinander beabstandet ist, und die Plattenelemente (56B) in die Richtung der Längsachse des Öffnungsteils vorstehen.

2. Hupe nach Anspruch 1, wobei eine Oberfläche von jedem Plattenelement (56B) senkrecht zu einer Ausbreitungsrichtung der Schallwellen angeordnet ist, die sich im Schallweg (30) ausbreiten, um dem Eindringen von Fremdkörpern weiter standzuhalten.

3. Hupe nach Anspruch 1 oder 2,
wobei die Höhe von jedem der Plattenelemente (56B) von der Stromaufwärtsseite des Schallwegs (30) zu dessen Stromabwärtsseite hin allmählich zunimmt, wobei die Höhe die Abmessung des Plattenelements in die zur Längsachse des Öffnungsteils senkrechte Richtung ist.

4. Hupe nach Anspruch 1, 2 oder 3,
wobei die Länge von jedem der Plattenelemente (56B) von der Stromaufwärtsseite des Schallwegs (30) zu dessen Stromabwärtsseite hin allmählich zunimmt, wobei die Länge die zur Längsachse des Öffnungsteils parallele Abmessung ist.

5. Hupe nach einem der Ansprüche 1-4,
wobei ein kleiner Abschnittsteil (56A), der einen Abschnittsdurchlassbereich des Schallwegs (30) verringert, zwischen dem Schallweg (30) und dem Schallaustrittsabschnitt (70) bereitgestellt ist.

6. Hupe nach einem der Ansprüche 1-5,
wobei ein vorderer Endteil (56C) von jedem der Plattenelemente (56B) zu einer Neigungsfläche ausgebildet ist, deren Höhe von der Stromaufwärtsseite des Schallwegs (30) zu dessen Stromabwärtsseite hin in die Dickenrichtung der Plattenelemente (56B) oder die Ausbreitungsrichtung der Schallwellen allmählich zunimmt.

7. Hupe nach einem der Ansprüche 1-6,
wobei ein Fremdkörpereinfangraum (59) in einem äußersten Teil des Schallwegs (30) ausgebildet und nach außen hin ausgedehnt ist.

8. Hupe nach Anspruch 7,
wobei eine Konfiguration eines Verbindungsteils zwischen dem Fremdkörpereinfangraum (59) und dem Schallweg (30) durch eine stromabwärtsseitige Tangentenlinie (T1) und eine stromaufwärtsseitige Tangentenlinie (T2), die miteinander verbunden sind, definiert ist,
wobei die stromabwärtsseitige Tangentenlinie (T1), die durch eine Seitenwandfläche eines Stromabwärtsseiten-Verbindungsteils des Schallwegs (30) definiert ist, auf die Innenseite des Fremdkörpereinfangraums (59) hin gerichtet ist, und
wobei die Stromabwärtsseiten-Tangentenlinie (T2), die durch eine Seitenwandfläche eines Stromaufwärtsseiten-Verbindungsteils des spiralförmigen Pfades (32) definiert ist, auf die Innenseite des Schallwegs (30) hin gerichtet ist, der sich auf der Innenseite der Seitenwandfläche, welche die stromabwärtsseitige Tangentenlinie (T1) definiert, befindet.

9. Hupe nach einem der vorangegangenen Ansprüche, umfassend:

einen Hauptkörperabschnitt (40), der den Schallweg (30) und den Schallaustrittsabschnitt (70) umfasst,

wobei der Hauptkörperabschnitt (40) Folgendes umfasst:

ein erstes Element (50), das eine Trennwand (52) und ein Durchgangsloch (54), das die Trennwand (52) in die Dickenrichtung durchdringt, aufweist;

ein zweites Element (60), das eine Trennwand (62), eine Seitenwand (63), eine Spiralplatte (66), die auf der Trennwand (62) bereitgestellt ist und deren eines Ende dem Durchgangsloch (54) des ersten Elements (50) entspricht, und einen rohrförmigen Schallaustrittsabschnitt (70), der am anderen Ende der Spiralplatte (66) bereitgestellt ist und der in die zur Oberfläche der Trennwand (62) senkrechte Richtung erweitert ist, aufweist,

wobei die Trennwand (62), die Seitenwand (63), die Spiralplatte (66) und der Schallaustrittsabschnitt (70) einstückig ausgebildet sind; und wobei die Seitenwand (63) des zweiten Elements (60) und eine Stirnfläche der Spiralplatte (66) mit einer Wandfläche der Trennwand (52) des ersten Elements (50) verbunden sind.

10. Hupe nach Anspruch 9,
wobei eine Seitenwand (53) auf einer Außenkante der Trennwand (52) des ersten Elements (50) einstückig ausgebildet ist.

11. Hupe nach Anspruch 9 oder 10,
wobei die Plattenelemente (56B) mit der Trennwand (52) des ersten Elements (50) einstückig ausgebildet sind und dem anderen Ende der Spiralplatte (66) zugewandt sind, und
wobei eine Oberfläche von jedem der Plattenelemente (56B) senkrecht zu einer Ausbreitungsrichtung von Schallwellen angeordnet ist.

12. Hupe nach Anspruch 11,
wobei der wie in Anspruch 5 definierte, kleine Abschnittsteil (56A) mit der Trennwand (52) des ersten Elements (50) einstückig ausgebildet ist.

13. Hupe nach einem der Ansprüche 9-12,
wobei die Abschirmplatte (72) mit dem Schallaustrittsabschnitt (70) des zweiten Elements (60) einstückig ausgebildet ist.

14. Fahrzeug, umfassend eine Hupe nach einem vorangegangenen Anspruch, wobei das Fahrzeug eine normale Fahrtrichtung aufweist, und die Hupe derart angebracht ist, dass der Öffnungsteil des Schallaustrittsabschnitts (70) in die normale Fahrtrichtung gerichtet ist, und die Längsachse des Öffnungsteils des Schallaustrittsabschnitts (70) vertikal ist.

Revendications

1. Klaxon pour un véhicule,
comprenant :

un élément d'oscillation (20) ;

un trajet de son (30) qui est formé en spirale autour d'un axe central (22) de l'élément d'oscillation (20) et dans lequel une distance par rapport à l'axe central (22) est augmentée graduellement vers une extrémité extérieure ; et

une section de sortie de son (70) étant prévue sur la partie d'extrémité extérieure du trajet de son (30), dans lequel la partie d'extrémité extérieure du trajet de son (30) s'étendant horizontalement en cours d'utilisation, la section de sortie de son (70) délivrant en sortie des ondes sonores, qui ont traversé le trajet de son (30) ;

dans lequel une partie d'ouverture de la section de sortie de son (70) délivre en sortie des ondes sonores parallèles à l'axe central et, en cours d'utilisation, la partie d'ouverture est dirigée dans la direction d'avancement du véhicule ;

dans lequel la partie d'ouverture de la section de sortie de son (70) a une configuration allongée ;

dans lequel une pluralité d'éléments de plaque (56B) sont fournis verticalement à une partie de connexion entre le trajet de son (30) et la section de sortie de son ;

caractérisé en ce que

un axe long de la partie d'ouverture est agencé dans la direction verticale lorsque le klaxon est fixé au véhicule ; dans lequel une plaque de protection (72) est prévue sur la section de sortie de son (70), de manière à cacher le trajet du son (30) lorsque le trajet du son (30) est vu depuis le côté de la section de sortie de son (70), la plaque de protection (72) étant un réseau ou un maillage grossier et servant à résister à l'invasion de matière étrangère ; et

dans lequel une pluralité d'éléments de plaque (56B) sont espacés de manière uniforme, et les éléments de plaque (56B) font saillie dans la direction de l'axe long de la partie d'ouverture.

2. Klaxon selon la revendication 1, dans lequel une surface de chacun desdits éléments de plaque (56B) est agencée perpendiculairement à une direction de propagation des ondes sonores se propageant dans le trajet de son (30) pour résister davantage à l'invasion de matière étrangère.

3. Klaxon selon la revendication 1 ou 2
dans lequel la hauteur de chacun des éléments de plaque (56B) augmente progressivement du côté amont du trajet de son (30) au côté aval de celui-ci, dans lequel la hauteur est la dimension de l'élément de plaque dans la direction perpendiculaire à l'axe long de la partie d'ouverture.

4. Klaxon selon la revendication 1, 2 ou 3
dans lequel la longueur de chacun des éléments de plaque (56B) augmente progressivement du côté amont du trajet de son (30) au côté aval de celui-ci, dans lequel la longueur est la dimension parallèle à l'axe long de la partie d'ouverture.

5. Klaxon selon l'une quelconque des revendications 1 à 4,
dans lequel une petite partie de section (56A), qui réduit une zone de passage en coupe du trajet de son (30), est prévue entre le trajet de son (30) et la section de sortie de son (70).

6. Klaxon selon l'une quelconque des revendications 1 à 5
dans lequel une partie d'extrémité avant (56C) de chacun des éléments de plaque (56B) est formée en une face de pente, dont une hauteur est augmentée graduellement à partir du côté amont du trajet de son (30) vers le côté aval de celui-ci dans la direction d'épaisseur des éléments de plaque (56B) ou la direction de propagation des ondes sonores.

7. Klaxon selon l'une quelconque des revendications 1 à 6,
dans lequel un espace de piégeage de matière étrangère (59) est formé dans une partie la plus à l'extérieur du trajet de son (30) et élargi vers l'extérieur.

8. Klaxon selon la revendication 7,
dans lequel une configuration d'une partie de connexion entre l'espace de piégeage de matière étrangère (59) et le trajet de son (30) est définie par une ligne tangente de côté aval (T1) et une ligne tangente de côté amont (T2), qui sont mutuellement connectées,
la ligne tangente de côté aval (T1), qui est définie par une face de paroi latérale d'une partie de connexion de côté aval du trajet de son (30), est dirigée vers le côté intérieur de l'espace de piégeage de matière étrangère (59), et
la ligne tangente de côté amont (T2), qui est définie par une face de paroi latérale d'une partie de connexion du côté amont du trajet en spirale (32), est dirigée vers le côté intérieur du trajet du son (30) qui se trouve du côté intérieur de la face de paroi latérale définissant la ligne tangente de côté aval (T1).

9. Klaxon selon l'une quelconque des revendications précédentes, ayant
une section de corps principal (40) incluant ledit trajet de son (30) et ladite section de sortie de son (70),
dans lequel
ladite section de corps principal (40) comprend :

un premier élément (50) ayant une paroi de séparation (52) et un trou traversant (54) pénétrant dans la paroi de séparation (52) dans la direction de l'épaisseur ;

un second élément (60) ayant une paroi de séparation (62), une paroi latérale (63), une plaque en spirale (66), qui est prévue sur la paroi de séparation (62) et dont une première extrémité correspond au trou traversant (54) du premier élément (50), et une section de sortie de son tubulaire (70), qui est prévue à l'autre extrémité de la plaque en spirale (66) et qui est étendue dans la direction perpendiculaire à la surface de la paroi de séparation (62),

dans lequel la paroi de séparation (62), la paroi latérale (63), la plaque en spirale (66) et la section de sortie de son (70) sont formées d'un seul tenant ; et

dans lequel la paroi latérale (63) du second élément (60) et une face d'extrémité de la plaque en spirale (66) sont connectées à une face de paroi de la paroi de séparation (52) du premier élément (50).

10. Klaxon selon la revendication 9,
dans lequel une paroi latérale (53) est formée d'un seul tenant sur un bord extérieur de la paroi de séparation (52) du premier élément (50).

11. Klaxon selon la revendication 9 ou 10,
dans lequel les éléments de plaque (56B) sont formés d'un seul tenant avec la paroi de séparation (52) du premier élément (50) et font face à l'autre extrémité de la plaque en spirale (66), et
une surface de chacun des éléments de plaque (56B) est agencée perpendiculairement à une direction de propagation d'ondes sonores.

12. Klaxon selon la revendication 11,
dans lequel la partie de petite section (56A) telle que définie dans la revendication 5 est formée d'un seul tenant avec la paroi de séparation (52) du premier élément (50).

13. Klaxon selon l'une quelconque des revendications 9 à 12,
dans lequel ladite plaque de protection (72) est formée d'un seul tenant avec la section de sortie de son (70) du second élément (60).

14. Véhicule comprenant un klaxon selon l'une quelconque des revendications précédentes, le véhicule ayant une direction de déplacement normale, et le klaxon étant monté de sorte que la partie d'ouverture de la section de sortie de son (70) est dirigée dans la direction de déplacement normale, et l'axe long de la partie d'ouverture de la section de sortie de son (70) est verticale.

Drawing