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(11) | EP 2 955 307 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | SIMPLE DOOR HINGE |
| (57) The invention relates to a simple door hinge, characterized by comprising: an outer
housing, an inner housing, a mounting base, a hinge cup, a connection member, a linkage,
a U-shaped pivot, a torsional spring, a first pivot, a second pivot, a push means,
a first pin and a damping cylinder; wherein the inner housing is fixedly mounted within
the outer housing, with a space form between both side walls and a top surface of
the inner housing and both side walls and a top surface of the outer housing, wherein
the mounting base is inserted in the space between the outer housing and inner housing;
wherein the U-shaped pivot is mounted in the hinge cup and the left ends of the connection
member and the linkage, respectively, are pivotably connected to the U-shaped pivot;
wherein the first pivot and the second pivot are mounted in a left end of the outer
housing, a right end of the connection member being pivotably connected to first pivot
and the torsional spring being disposed around the first pivot, with one end of the
torsional spring abutting on the outer housing and the other end of the torsional
spring abutting on the connection member; and wherein the damping cylinder is fixedly
mounted within the inner housing by means of the first pin, a piston rod of the damping
cylinder at an end is threadedly connected with the right end of the push means and
a left end of the push means engages with a right end of the linkage. Its advantages
lie in the detachable outer housing and the mounting base, ease of assembly and disassembly,
compact configuration, small size and simple structure.
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TECHNICAL FIELD
BACKGROUND
[0002] The existing simple door hinge includes an outer housing, a mounting base, a hinge cup, a connection member, a linkage, a U-shaped pivot, a return spring, a first pivot, a second pivot, a third pivot, a push member, a pin and a damping cylinder. The U-shaped pivot is mounted in the hinge cup and ends of the connection member and the linkage, respectively, are pivotably connected to the U-shaped pivot. The mounting base is fixedly mounted by an adjustment screw and a connection pin. The first pivot passes through one end of the outer housing and is fixed thereto, and the other end of the connection member is pivotably connected to the first pivot. The return spring is disposed about the first pivot, with one end of the return spring abutting on the top surface of the outer housing and the other end of the return spring abutting on the connection member, and the second pivot passes through the outer housing and is fixed thereto and the lower protrusion of the linkage is pivotably connected to the second pivot. The damping cylinder is mounted within the mounting base, an end of a piston rod of the damping cylinder is threadedly connected with one end of the push member, and the other end of the push member is rotatably connected to the other end of the linkage by means of a pin. The third pivot passes through the outer housing and is fixed thereto, and the third pivot passes through two elongated holes and is rotatable relative thereto. Such kind of housing and mounting base is undetachable, leading to difficulty in installation, and has a large size and complex structure.
SUMMARY OF THE INVENTION
[0003] Therefore the object of the present invention is to solve the existing deficiencies by providing a simple door hinge which has advantages of detachable outer housing and mounting base, ease of assembly and disassembly, compact configuration, small size and simple structure.
[0004] In an aspect of the invention, a simple door hinge is provided to achieve the above object, characterized by comprising:
an outer housing, an inner housing and a mounting base; the inner housing being fixedly mounted in the outer housing, with a space formed between two side walls and a top surface of the inner housing and two side walls and a top surface of the outer housing, and the mounting base being inserted into the space between the outer housing and inner housing and being detachably fixed by means of an adjustment screw and a connection pin;
a hinge cup, a connection member, a linkage and a U-shaped pivot; the U-shaped pivot being mounted in the hinge cup and left ends of the connection member and the linkage, respectively, being pivotably connected to the U-shaped pivot;
a torsional spring, a first pivot and a second pivot; the first pivot and the second pivot being mounted in a left end of the outer housing, a right end of the connection member being pivotably connected to the first pivot, the torsional spring being disposed around the first pivot, one end of the torsional spring abutting on the outer housing, and the other end of the torsional spring abutting on the connection member; and
a push means, a first pin and a damping cylinder; the damping cylinder being mounted within the inner housing by means of the first pin, a piston rod of the damping cylinder at an end being threadedly connected with a right threading end of the push means, a left end of the push means engaging with a right end of the linkage such that the push means may push the linkage or the push means may be pushed by the linkage.
[0005] The push means comprises a push member and a sleeve. A right end of the sleeve is threadedly connected with the end of the piston rod and the left end of the sleeve is connected with the right end of the push member by means of two second pins. The left end of the push member engages with the right end of the linkage such that the push member may push the linkage or the push means may be pushed by the linkage.
[0006] The inner housing at its left end is provided with an opening extension feature which extends toward both sides and forms a close fit with two side walls of the outer housing end. Provided are a third pivot and a fourth pivot which each extend through the opening extension feature to position the inner housing in the outer housing.
[0007] The push member at its left end is provided with two racks and the linkage at its right end is provided with a gear at both sides, wherein the racks mesh with the gears.
[0008] The adjustment screw is arranged on the top surface of the outer housing and threadedly engages therewith. The adjustment screw at its lower end is provided with an annular groove. The mounting base at its left end is provided with a U-shaped notch which fits into the annular groove. The connection pin is arranged at the right end of the mounting base and threadedly engages therewith. The outer housing at its right end is provided with a U-shaped notch on which the connection pin is supported.
[0009] The invention has the advantages over the prior arts by detachable outer housing and the mounting base, ease of assembly and disassembly and compact configuration, mall size and simple structure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010]
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is the exploded view of the present invention;
FIG. 4 is the bottom view of the present invention.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0011] The invention is further described in the following detailed description of the embodiments with reference to the accompanying drawings. It should be noted that the description of the specific embodiments is for the purpose of a better understanding of the invention, but not intended to constitute any limitation to the invention. Moreover, the technical features recited in the various embodiments of the invention described below may be combined with each other to the extent that no inconsistence is caused.
[0012] In the context of the invention, the terms, such as "left end", "right end" or the like, which indicate directional or positional relationships, will refer to those directions or positions as illustrated in the drawings, and are only used for the purpose of describing the invention, and thus shall not be construed as limitation thereto.
[0013] In the context of the invention, the terms "first", "second", "third" and "fourth" are only used for the purpose of description, and shall not be construed to indicate or imply the relative importance thereof.
[0014] In Figs. 1 to 4, a simple door hinge is shown, comprising:
an outer housing 7, an inner housing 13 and a mounting base 6; the inner housing 13 being fixedly mounted in the outer housing 7, with a space formed between two side walls and a top surface of the inner housing 13 and two side walls and a top surface of the outer housing 7, and the mounting base 6 being inserted into the space between the outer housing 7 and inner housing 13 and being detachably fixed by means of an adjustment screw 9 and a connection pin 8;
a hinge cup 1, a connection member 11, a linkage 15 and a U-shaped pivot 10; the U-shaped pivot 10 being mounted in the hinge cup 1 and left ends of the connection member 11 and the linkage 15, respectively, being pivotably connected to the U-shaped pivot 10;
a torsional spring 12, a first pivot 2 and a second pivot 3; the first pivot 2 and the second pivot 3 being mounted in a left end of the outer housing 7, a right end of the connection member 11 being pivotably connected to the first pivot 2, the torsional spring 12 being disposed around the first pivot 2, one end of the torsional spring 12 abutting on the outer housing 7, and the other end of the torsional spring 12 abutting on the connection member 11; and
a push means, a first pin 14 and a damping cylinder 18; the damping cylinder 18 being mounted within the inner housing 13 by means of the first pin 14, a piston rod 181 of the damping cylinder 18 at an end being threadedly connected with a right threading portion of the push means, a left end of the push means engaging with a right end of the linkage 15 such that the push means pushes the linkage 15 or the push means is pushed by the linkage 15.
[0015] Since the piston rod 181 of the damping cylinder 18 at the end is threadedly connected with the right threading end of the push means, the end of the piston rod 181 is not required to be drilled, such that the piston rod 181 may have a relatively small size and thus the volume of the damping cylinder 18 is reduced such that the design is more compact. Also because the damping cylinder 18 is mounted within the inner housing 13, a detachable fixation can be achieved by means of the adjustment screw 9 and the connection pin 8, when mounting the mounting base 6 and the outer housing 7. During installation, the mounting base 6 may be fixed to a door frame whereas the hinge cup 1 may be fixed to a door panel respectively, and then the mounting base 6 is inserted in the outer housing 7 and is fixed thereto by means of the adjustment screw 9 and the connection pin 8.
[0016] In the embodiment, to facilitate the connection of the push means with the piston rod 181, the push means comprises a push member 16 and a sleeve 17. A right end of the sleeve 17 is threadedly connected with the end of the piston rod 181 and the left end of the sleeve 17 is connected with the right end of the push member 16 by means of two second pins 20. The left end of the push member 16 engages with the right end of the linkage 15 such that the push member 16 may push the linkage 15 or the push means may be pushed by the linkage 15.
[0017] In the embodiment, to fixedly mount the inner housing 13 in the outer housing 7, the inner housing 13 at its left end is provided with an opening extension feature 131 which extends toward both sides and forms a close fit with two side walls of the outer housing 7 end. Provided are a third pivot 4 and a fourth pivot 5 which each extend through the opening extension feature 131 to provide a further fixation of the inner housing 13 in the outer housing 7. The inner housing 13 may be fixedly mounted in the outer housing 7 in accordance other means as desired, e.g., by means of protrusion for a further fixation of the inner housing 13 in the outer housing 7.
[0018] In the embodiment, to push the linkage 15 by the push member 16 or to push the push member 16 by the linkage 15, the push member 16 at its left end is provided with two racks 161 and the linkage 15 at its right end is provided with a gear 151 at both sides, wherein the racks 161 mesh with the gears 151. The push member 16 may engage with the linkage 15 in accordance with other means as desired, e.g., by means of pivot connection of the push member 16 and the linkage 15 by a pin.
[0019] In the embodiment, the adjustment screw 9 is arranged on the top surface of the outer housing 7 and threadedly engages therewith. The adjustment screw 9 at its lower end is provided with an annular groove 91. The mounting base 6 at its left end is provided with a U-shaped notch 61 which fits into the annular groove 91. The connection pin 8 is arranged at the right end of the mounting base 6 and threadedly engages therewith. The outer housing 7 at its right end is provided with a U-shaped notch 71 on which the connection pin 8 is supported.
[0020] The embodiments of the present invention have been particularly described with reference to the accompanying drawings, but the scope of the present invention is not to be interpreted as limited to the embodiments disclosed herein. As will be appreciated by those skilled in the art, various changes, modifications, alternatives or variations may be made without departing from the concept and spirit of the invention as defined in the appended claims.
an outer housing (7), an inner housing (13) and a mounting base (6); the inner housing (13) being fixedly mounted in the outer housing (7), with a space formed between two side walls and a top surface of the inner housing (13) and two side walls and a top surface of the outer housing (7), and the mounting base (6) being inserted into the space between the outer housing (7) and inner housing (13) and being detachably fixed by means of an adjustment screw (9) and a connection pin (8);
a hinge cup (1), a connection member (11), a linkage (15) and a U-shaped pivot (10); the U-shaped pivot (10) being mounted in the hinge cup (1) and left ends of the connection member (11) and the linkage (15), respectively, being pivotably connected to the U-shaped pivot (10);
a torsional spring (12), a first pivot (2) and a second pivot (3); the first pivot (2) and the second pivot (3) being mounted in a left end of the outer housing (7), a right end of the connection member (11) being pivotably connected to the first pivot (2), the torsional spring (12) being disposed around the first pivot (2), one end of the torsional spring (12) abutting on the outer housing (7), and the other end of the torsional spring (12) abutting on the connection member (11); and
a push means, a first pin (14) and a damping cylinder (18); the damping cylinder 18 being mounted within the inner housing (13) by means of the first pin (14), a piston rod (181) of the damping cylinder (18) at an end being threadedly connected with a right threading end of the push means, a left end of the push means engaging with a right end of the linkage (15) such that the push means pushes the linkage (15) or the push means is pushed by the linkage (15).