(19)
(11)EP 3 626 939 A1

(12)EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(43)Date of publication:
25.03.2020 Bulletin 2020/13

(21)Application number: 17912502.6

(22)Date of filing:  08.06.2017
(51)International Patent Classification (IPC): 
F01N 13/00(2010.01)
B62J 23/00(2006.01)
(86)International application number:
PCT/ES2017/070419
(87)International publication number:
WO 2018/224702 (13.12.2018 Gazette  2018/50)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(71)Applicant: Beteta Nuñéz, Victor
28901 Getafe (ES)

(72)Inventor:
  • Beteta Nuñéz, Victor
    28901 Getafe (ES)

(74)Representative: Espiell Gomez, Ignacio 
R. Volart Pons y Cia., S.L. Pau Claris, 77 2º 1ª
08010 Barcelona
08010 Barcelona (ES)

  


(54)ELEMENT FOR PROTECTING A MOTORCYCLE SILENCER


(57) Protecting element of the muffler of motorcycles that comprises a flexible profile (2) of heat resistant elastomer, to surround the muffler pipe, and a fastening means (3) with adjustable tightening lock (4) that can be housed in a longitudinal recess (5) of the profile (2) the said lock (4) remains on the offset (6) of an end, possessing transversal cutting grooves (7) that reduce the thickness of the profile (2) to facilitate its cutting; possessing an outwards opening (5a) in the longitudinal recess (5), to place or withdraw the fastening means (3); and a lid (8) that is adjusted on the offset (6) covering the lock (4) of the fastening means (3).




Description

OBJECT OF THE INVENTION



[0001] The invention, as stated in the title of this descriptive specification, refers to a protecting element of the motorcycle muffler that provides to the function to which it is designed, advantages and characteristics of novelty, that are disclosed in details thereafter, which mean an improvement of the current state of the art.

[0002] The object of this invention refers to a protecting element of the motorcycle and moped muffler that, consisting in a flexible profile made of heat resistant elastomer, namely silicone, possesses adjustable means to be set tight and perfectly coupled around the muffler pipe constituting a perfect protector of the surface thereof face to eventual blows.

FIELD OF APPLICATION OF THE INVENTION



[0003] The field of application of this invention is within the sector of the industry engaged in producing accessories for motorcycles and mopeds, mainly focusing the scope of the protecting elements, and more concretely those designed to protecting the built-in muffler in the gas exhaust system.

BACKGROUND OF THE INVENTION



[0004] Currently, different elements are known designed to provide protection to the motorcycles and mopeds muffler. However, most of them are rigid, normally metallic elements, that are incorporated coupled on the side of the muffler, such as for example the one disclosed in the utility model ES293578U.

[0005] Also, through the patent GB 2396185 A, a muffler protector is known of the type of the one involved herein, conformed by a profile, but that is also a rigid element including a layer of insulating material within the said profile.

[0006] Another example of this type of elements is the one disclosed in the patent CA2441557A1, that consists in a profile that is fastened by means of a clamp, however, it has likewise a different constitution from the one preconized herein, as it is neither flexible nor heat resistant.

[0007] Likewise, other devices exist designed to be coupled to the muffler of the motorcycles but, unlike the element proposed herein, instead of being designed to prevent blows and to protect the surface of the muffler pipe, they are designed to protect the user from eventual burns produced due to the high temperatures it can reach in the use, therefore they cannot be compared.

[0008] Anyway, the main drawback of the existing protectors, when they are rigid, is the lack of capacity of adaptation to different types and/or diameters of the muffler pipe and to their complex installation nature , because generally, as they are rigid and metallic elements, their coupling has to be carried out by means of fastening structures that have to be permanently fixed on the vehicle, so it is usually necessary that professionals intervene for installing them or even having the said elements directly incorporated at the factory. When they are adaptable, the problem with these elements is the low resistance to high temperatures, therefore they use to be conformed out of complex structures of layers among which layers of insulating material are included, that rise the cost of their production but does not ensure a good protection against blows due to fall.

[0009] To prevent these drawbacks and provide a protecting element easy to install and effective face to the possibility of blows on the surface of the muffler pipe , that uses to be a chrome-plated element the appearance of which has, to a large extent, an influence on the image of the vehicle, in addition to also affecting its effectiveness, the own applicant is the holder of a patent of invention that, with number ES2570394B1, discloses a protecting device of the motorcycle and mopeds muffler that, unlike those above mentioned, is of a flexible heat-resistant material.

[0010] This protector, however, although it satisfactorily overcomes the above-mentioned drawbacks thanks to its flexible constitution of heat-resistant elastomer material, possesses a series of features and limitations that can be improved, namely some features referring to its capacity of adaptation and fixing means, the main objective of this invention being to develop a new protecting element improved in that sense.

[0011] On the other hand, and as reference to the current state of the art, it shall be pointed out that, although as it has been evidenced, different types and models of protecting elements of motorcycle mufflers are known in the market, at least the applicant is not aware of the existence of anyone showing technical and structural characteristics equal or similar to those that are concretely shown by the one proposed herein as it is claimed.

EXPLANATION OF THE INVENTION



[0012] The protecting element of the motorcycle muffler of motorcycles that the invention proposes is therefore configured as a novelty within its field of application because, when it is implemented, the above objectives are satisfactorily met, the characterizing details that distinguish it conveniently appearing in the final claims attached to this specification.

[0013] Concretely, the protecting element that the invention proposes, as it was stated before, comprises a flexible profile made of heat- resistant elastomer material, namely silicone, designed to be fixed around the muffler pipe of a motorcycle or moped, of the type disclosed in the above-mentioned patent ES2570394B1, constituting a protector of the surface thereof face to eventual blows, for example because of falling from the vehicle, for which it possesses fastening means that, jointly with the said flexible constitution allow that its mounting and installing is simple and quick, even that any user can be able to make it, possessing the feature that, in addition it includes a series of improvements that improve its possibilities of been fixed and its capacity of adaptation to different types and/or diameters of the muffler pipe .

[0014] To this aim, and more specifically, the protecting profile, the section of which has a variable configuration, for example rectangular, semicircular or oval, comprises, at least, a longitudinal recess to house the fastening means, consisting in a flange or any other type of fastening means with adjustable tightening, possessing close to, at least, one of its ends, one or more transversal grooves designed to facilitate its cutting, because they create a smaller thickness in the section of the profile and, therefore a weakening of the material that facilitates the said cutting, in order to be able to adapt the length of the profile to different diameters of the muffler.

[0015] In addition, the element of the invention envisages the incorporation of a lid that, made of the same material as the rest of the profile, can be coupled on the lowered end of the said profile in which the adjustable tightening lock of the fastening means is housed, for example an hexagonal adjusting screw if it is a metallic flange , so that the said lock remains protected from weathering and moisture.

[0016] Last, it shall be pointed out that the above mentioned longitudinal recess that possesses in the profile to house the adjustable tightening means allowing its fixing and adapting around the muffler, is a laterally outwards open recess so that, superficially protecting the said tightening means, that can be metallic or not, it allows inserting and withdrawing them in a practical and simple way, even with the ends partly closed or dismounting them, without fully dismounting the protector is required, as they can be inserted and withdrawn from the side part of the profile, facilitating even more the installation operation.

[0017] The protecting element of the motorcycle muffler of the invention consists, therefore, in an innovating device having characteristics unknown up to now for the purpose to which it is designed, reasons that joined to its practical utility, endow it with sufficient ground to obtain the privilege of exclusivity applied for.

DESCRIPTION OF THE DRAWINGS



[0018] To complement the description being performed and in order to help to a best understanding of the characteristics of the invention, attached to this specification, as an integral part thereof, is a drawing in which the illustrative and no limiting nature has been represented as follows:

The figure number 1.- It shows a perspective view of the profile comprising the protecting element object of the invention, represented in open position and prior to its incorporation in the motorcycle muffler, its general configuration and that of the parts it comprises can be seen;

the figure number 2.- It shows a perspective view of an example of the appropriate adjustable tightening means with which the profile of the element is fixed, according to the invention, also represented in extended and open position before it is placed in the recess of the profile; and

the figure number 3.- It shows a perspective view of the protecting element, according to the invention, after it is mounted and closed, although it has been represented without the muffler being coupled.


PREFERRED EMBODIMENT OF THE INVENTION



[0019] At the sight of the mentioned figures, and according to the numerals adopted, a no limiting example of the protecting element of the invention can be seen, which comprises the parts indicated and disclosed in details below.

[0020] Thus, as it can be seen in the said figures, the element (1) of the invention is configured, in a well-known manner, out of a flexible protecting profile (2), made of a heat resistant elastomer material, preferably silicone, having a configuration of variable cross section and a length sufficient to surround the muffler pipe to which it is designed, and a fastening means (3) with an adjustable tightening lock (4) and that is housed in a longitudinal recess (5) of the own profile (2) provided for it, the said lock (4) being located in an offset (6) carried out for that purpose in one of the ends of the profile (2), in an innovating manner being provided to facilitate its adaptation to different diameters of pipe and to allow placing the fastening means (3) in the said longitudinal recess (5), the existence of a series of transversal cutting grooves (7) determining a reduction of the thickness in the section of the profile (2) to facilitate its cutting, an outwards opening (5a) in the longitudinal recess (5) that encompasses its whole length ,for placing or withdrawing the fastening means (3) through it and a lid (8) that is adjusted on the offset (6) of the profile (2) covering the said lock (4) of the fastening means (3).

[0021] Preferably, the said fastening means (3) consists in a metallic flange having a hexagonal adjusting screw lock (4) or endless screw, without discarding any other type of flange, for example of plastic material, or fastening type , provided that it can be accommodated in the recess (5) and possesses a lock (4) at its adjustable tightening ends to adapt itself to different diameters of the pipe, the aim of the transversal cutting grooves (7), is to provide the flexible profile (2) with the length suitable for each type of pipe ,without it is necessary to produce them in different sizes.

[0022] Preferably, these transversal cutting grooves (7) are located and apart to equidistant distances, close to the ends of the profile (2) opposite to the offset (6) for the location of the lock (4) of the fastening means (3).

[0023] For its part, the longitudinal recess (5) of the profile (2) to place the fastening means (3), is preferably located in the central area of the profile (2) and its opening (5a) outwards in the lateral and longitudinal part thereof.

[0024] Preferably the lid (8), is a part made of the same flexible material as the rest of the profile (2), and is coupled snap fit on the offset (6) of the end of the said profile (2) in which the lock (4) of the fastening means (3) is located fully covering it, for example by means of protuberances (8a) provided to that purpose on the lower part thereof adapted to fit in a rim edge (6a) complementary to the said offset (6).

[0025] In addition, the lid (8) is joined integral with the body of the protecting profile (2) by means of a flexible connecting bridge (9) provided between both parts to avoid its loss.

[0026] Last, it shall be pointed out that, optionally, the profile (2) possesses a flat configuration at its lower basis (2a) with two lateral extensions (2b) in its respective longitudinal sides encompassing its full length designed to favor its grip on the surface of the muffler to which it is designed.

[0027] Sufficiently disclosed the nature of this invention, as well as the manner to implement it, it is not deemed necessary to extend anymore its explanation in order that any person skilled in the art understands its extent and advantages derived from it, and it is stated that, within its essence, it can be implemented in other embodiments that differ in details of the disclosed for example purpose, and to which shall also extend the protection applied for provided that its fundamental principle is not altered, changed or modified.


Claims

1. Protecting element of a motorcycle muffler that, comprising a flexible protecting profile (2) made of heat resistant elastomer material , the protecting element consisting of a profile having a variable cross section and a length sufficient to surround the muffler pipe to which it is designed, and a fastening means (3) with an adjustable tightening lock (4) that is housed in a longitudinal recess (5) of the own profile (2) provided for it, the said lock (4) being located in an offset (6) carried out to that purpose in one of the ends of the profile (2), characterized in that the said profile (2) possesses a series of transversal cutting grooves (7) that determine a reduction of the thickness in the section of the profile (2) itself to facilitate its cutting.
 
2. Protecting element of a motorcycle muffler according to any of the preceding claims characterized in that the said profile (2) possesses an opening (5a) outwards in the longitudinal recess (5) that encompasses its whole length, for placing or withdrawing the fastening means (3) through it
 
3. Protecting element of a motorcycle muffler according to any of the preceding claims characterized in that it comprises a lid (8) adjusted on the offset (6) of the profile (2) covering the lock (4) of the fastening means (3).
 
4. Protecting element of a motorcycle muffler according to any of the preceding claims characterized in that the fastening means (3) consists in a metallic flange having a hexagonal adjusting screw lock (4) or endless screw.
 
5. Protecting element of a motorcycle muffler according to any of the preceding claims characterized in that these transversal cutting grooves (7) are located and apart to equidistant distances, close to the end of the flexible profile (2) opposite to the offset (6) for the location of the lock (4) of the fastening means (3).
 
6. Protecting element of a motorcycle muffler according to any of the preceding claims, characterized in that the longitudinal recess (5) of the profile (2) to place the fastening means (3), is located in the central area of the profile (2) and its outwards opening (5a) in the lateral part thereof.
 
7. Protecting element of a motorcycle muffler according to the claim 3, characterized in that the lid (8), is a part made of the same flexible material as the rest of the profile (2).
 
8. Protecting element of a motorcycle muffler, according to any of the claims 3 6 7, characterized in that the lid (8) is coupled and snap fit on the offset (6) of the end of the said profile (2)
 
9. Protecting element of the motorcycle muffler according to any of the claims 3, 7 or 8, characterized in that the lid (8) is joined integral with the body of the protecting profile (2) by means of a flexible connecting bridge (9) provided between both parts
 
10. Protecting element of a motorcycle muffler, according to any of the preceding claims characterized in that the profile (2) possesses a flat
configuration at its lower basis (2a) with two lateral extensions (2b) in its respective longitudinal sides encompassing its full length.
 




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Cited references

REFERENCES CITED IN THE DESCRIPTION



This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description