CN113635959B

CN113635959B - Steering wheel

Info

Publication number: CN113635959B
Application number: CN202111104692.0A
Authority: CN
Inventors: 汪伟; 周厚林; 温宏杰
Original assignee: Shanghai Lingang Junsheng Automobile Safety System Co ltd
Current assignee: Shanghai Lingang Junsheng Automobile Safety System Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-12-30
Anticipated expiration: 2041-09-18
Also published as: CN113635959A

Abstract

The utility model provides a steering wheel, belong to car steering operation device's technical field, specifically include the foaming body, the skeleton, the inserts, leather sheath and decoration, be equipped with skeleton and inserts in the foaming body, the inserts includes diapire and both sides wall, the cavity is inlayed in inside formation, both sides wall extends to foaming body surface from the diapire, both ends inlay the cavity after the leather sheath parcel foaming body periphery, the cavity is inlayed in the middle embedding of the at least part of decoration follow leather sheath both ends, respectively with leather sheath both ends interference fit, the inserts still has middle upright wall, any tip of leather sheath inlays to middle upright wall one side, the decoration inlays jointly to middle upright wall opposite side with leather sheath another tip, the decoration, leather sheath both ends and middle upright wall are inlaying mutual interference fit in the cavity. Through the processing scheme of this application, stabilize the position of steering wheel at the in-process ornament of use, improve the problem that ornament and leather sheath border department produced the clearance.

Description

Steering wheel

Technical Field

The application relates to the field of automobile steering operation devices, in particular to a steering wheel.

Background

The molding of car steering wheel is diversified day by day, is subject to the figurative space restriction of customer, and some narrower decorations can't directly design the buckle and carry out interference fit connection with the foaming, for satisfying this decoration molding design this moment, among the prior art, the decoration is designed for last decoration and lower decoration, and wherein, lower decoration and foaming body integrated into one piece go up the decoration then need be connected with it through glue. However, in a specific environment, the upper decoration piece can generate micro deformation movement due to the shrinkage effect of the leather, so that the gap between the upper decoration piece and the leather is enlarged.

Disclosure of Invention

In view of this, the application provides a steering wheel, has solved the problem among the prior art, stabilizes the position of the ornament of steering wheel in the use, improves the problem that produces the clearance in decoration and the leather sheath border department.

The application provides a steering wheel adopts following technical scheme:

a steering wheel comprises a foaming body, a framework, an insert, a leather sleeve and a decoration piece, wherein the framework and the insert are arranged in the foaming body, the insert comprises a bottom wall and two side walls, an embedded cavity is formed inside the insert, the two side walls extend to the surface of the foaming body from the bottom wall, the leather sleeve wraps the periphery of the foaming body, the two end parts of the periphery of the foaming body are embedded into the embedded cavity, the decoration piece is at least partially embedded into the embedded cavity from the middle of the two end parts of the leather sleeve and is respectively in interference fit with the two end parts of the leather sleeve, the steering wheel is characterized in that,

the insert is further provided with a middle vertical wall, any end part of the leather sheath is embedded to one side of the middle vertical wall, the decorating part and the other end part of the leather sheath are embedded to the other side of the middle vertical wall together, and the decorating part, the two end parts of the leather sheath and the middle vertical wall are in interference fit with each other in the embedding cavity.

Optionally, a flat hook structure is fixed on the bottom wall of the embedding cavity, a hook groove is formed in the bottom of the decorating part, the decorating part enters the embedding cavity, and the flat hook structure is embedded into the hook groove to realize barb clamping.

Optionally, the tops of the two side walls and the middle vertical wall are provided with inclined planes facing the decorating part, the decorating part is provided with a wedge-shaped structure matched with the inclined planes, and the flat hook structure provides a pulling-out force perpendicular to the bottom wall for the decorating part, so that the two end parts of the leather sheath are pressed on the inclined planes by the wedge-shaped structure.

Optionally, the inserts diapire in it is equipped with positioning groove to inlay the cavity outside, be equipped with the location boss on the skeleton, the embedding of location boss positioning groove realizes the inserts with behind the skeleton location, put into foaming mould integrative foaming shaping.

Optionally, the bottom wall of the insert is provided with protruding limiting parts located on the outer sides of the two side walls, and the limiting parts enter the foaming bodies on the two sides of the insert.

Optionally, the flat hook structure includes a connecting section and an enlarged portion, the connecting section extends from the bottom wall of the inlay cavity to the open side of the inlay cavity, the enlarged portion is located at the top end of the connecting section, and the width of the enlarged portion gradually decreases from the connecting section to the outside;

the hook groove comprises a dovetail groove formed in the bottom of the decorating part and a contraction part for closing part of the dovetail groove, and an opening is formed in the contraction part;

the dovetail groove is matched with the increasing part, when the decorating part is abutted to the increasing part under stress, the increasing part expands the opening to enter the dovetail groove, and after the increasing part enters the dovetail groove, the contracting part fastens the increasing part.

Optionally, the flat hook structure is a continuous structure extending in the same direction as the side wall or a section structure distributed at intervals.

Optionally, the inlay cavity is filled with glue, and the glue bonds any two or more of the decoration, the leather sheath, the side wall of the insert and the intermediate vertical wall.

Optionally, the bottom wall and the side walls of the insert are perpendicular to each other, and the intermediate upright wall and the side walls extend parallel to each other.

Optionally, the inserts are arranged along the hub of the steering wheel, the upper edges of the spokes on the two sides and the lower rim of the steering wheel to form a closed annular structure.

To sum up, the application comprises the following beneficial technical effects:

1. one side of the middle vertical wall and the side wall of the insert form a first groove embedded with the end part of the leather sheath, so that the coating trend of the leather is restricted, and the coating direction of the leather sheath is changed to be vertical, so that the leather is difficult to drive the upper decoration to move after being aged or heated to shrink;

2. the connection stability of the decorating part and the embedded part is enhanced by the clamping of the flat hook structure and the hook groove, and the problem that the leather sheath drives the decorating part to move is solved;

3. after decoration and flat structure block of colluding, the wedge structure of decoration portion compresses tightly the leather sheath on the inclined plane, reduces the deformation and the displacement of leather sheath tip to stabilize the position of decoration.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a distribution structure of a decoration part on a steering wheel;

FIG. 2 isbase:Sub>A cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a schematic view of the connection structure of the insert, the foam, the decoration and the leather sheath according to the present application;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of the wedge-shaped configuration of the ramp and trim of the insert of the present application.

Description of reference numerals: 1. a framework; 11. positioning the boss; 12. a rim; 13. a spoke; 14. a hub; 2. a foam; 3. an insert; 31. a bottom wall; 32. a side wall; 33. embedding a cavity; 331. a first groove; 332. a second groove; 34. a middle vertical wall; 35. a flat hook structure; 351. a connection section; 352. an enlarged section; 36. a limiting part; 37. a bevel; 38. a positioning groove; 4. a leather sheath; 5. a decorative piece; 51. an insertion section; 52. a decorative part; 53. a wedge-shaped structure; 54. a hook groove; 541. a dovetail groove; 542. a constriction; 543. and (4) opening.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

The embodiment of the application provides a steering wheel.

As shown in fig. 1 and 2, a steering wheel comprises a foaming body 2, a framework 1, an insert 3, a leather sheath 4 and a decoration 5, wherein the framework 1 and the insert 3 are arranged in the foaming body 2, and the foaming body 2 is formed on the framework 1 and the insert 3 through foaming molds in a foaming mode. The insert 3 comprises a bottom wall 31 and two side walls 32, an inlay cavity 33 is formed inside, the two side walls 32 extend from the bottom wall 31 to the surface of the foaming body 2, wherein the bottom wall 31 and the side walls 32 are integrally formed. The leather sheath 4 wraps the periphery of the foaming body 2, the two end parts are embedded into the embedding cavities 33, and the decorating parts 5 are at least partially embedded into the embedding cavities 33 from the middles of the two end parts of the leather sheath 4 and are in interference fit with the two end parts of the leather sheath 4 respectively.

As shown in fig. 2 and 3, in order to improve the situation that the leather drives the decoration 5 to move after being heated and shrunk, the insert 3 further has an intermediate vertical wall 34, one end of the leather sheath 4 is embedded into one side of the intermediate vertical wall 34, the decoration 5 and the other end of the leather sheath 4 are embedded into the other side of the intermediate vertical wall 34 together, and the decoration 5, two ends of the leather sheath 4 and the intermediate vertical wall 34 are in interference fit with each other in the embedding cavity 33. The space formed by the middle vertical wall 34 and one side wall and used for embedding the leather sheath 4 and the decorative part 5 together is a first groove 331, and the space formed by the middle vertical wall 34 and the other side wall and used for embedding the end part of the leather sheath 4 only is a second groove 332.

The bottom wall 31 and the side wall 32 of the insert 3 are perpendicular to each other, and the intermediate standing wall 34 and the side wall 32 extend parallel to each other, that is, the intermediate standing wall 34 extends outward from the bottom wall 31 in a direction parallel to the side wall 32. In the embodiment of the present application, the intermediate upright wall 34 is integrally formed with the bottom wall 31 and the side walls 32.

One side of the middle vertical wall 34 and the side wall 32 of the insert 3 form a second groove 332 embedded with the end part of the leather sheath 4, so that the coating trend of the leather is restrained, the coating direction of the leather sheath 4 is changed to be vertical, and under the clamping of interference force, even if the leather is aged or heated to shrink, the leather is difficult to drive the upper decoration 5 to move.

As shown in fig. 1, the insert 3 is arranged along the hub 14 of the steering wheel, the upper edges of the two side spokes 13 and the lower rim 12 of the steering wheel, forming a closed ring structure. The distribution of the insert 3 is also the distribution of the trim 5 on the steering wheel. In other embodiments, the insert 3 may be placed at different locations on the steering wheel depending on the design requirements of the trim piece 5.

The bottom wall 31 of the insert 3 is provided with protruding limiting parts 36 on the outer sides of the two side walls 32, the limiting parts 36 are integrally formed on the outer sides of the side walls 32, and the limiting parts 36 enter the foaming bodies 2 on the two sides of the insert 3. The limiting part 36 extends into the foaming body 2, so that the connection strength of the insert 3 and the foaming body 2 is enhanced, and the insert 3 is not easy to separate from the foaming body 2.

Inlay on the diapire 31 of cavity 33 integrative being fixed with flat structure 35 of colluding, 5 bottoms of decoration are equipped with hook groove 54, and cavity 33 is inlayed in 5 entering of decoration, and flat structure 35 of colluding imbeds hook groove 54 and realizes the barb block.

Specifically, as shown in fig. 3 and 4, the flat hook mechanism is located in the first groove 331, the flat hook structure 35 includes a connecting section 351 and an enlarged portion 352, the connecting section 351 extends from the bottom wall 31 of the inlay cavity 33 to the open side of the inlay cavity 33, the enlarged portion 352 is located at the top end of the connecting section 351, and the enlarged portion 352 gradually reduces in width from the connecting section 351 to the outside. The connecting section 351 has a uniform cylindrical structure in cross section and can be a cylinder or a prism; the enlarged part 352 is a conical structure, the bottom surface of the conical structure is connected with the connecting section 351, and the bottom end of the conical structure is larger than the connecting section 351 to form a step surface clamped with the hook groove 54; the conical structure can be any one of a cone, a pyramid and a frustum of a pyramid; the flat hook structure is a plurality of point positions or section structures which extend parallel to the side wall and have intervals, or a continuous strip structure. The hook groove 54 is provided at the bottom of the decoration 5, corresponding to the flat hook structure, and includes a dovetail groove 541 and a contraction portion 542 closing the dovetail groove 541, the contraction portion 542 is provided with an opening 543, the opening 543 is larger than the top of the enlarged portion 352 and smaller than the bottom of the enlarged portion 352, namely, the opening 543 is larger than the top end of the tapered structure and smaller than the bottom end of the tapered structure, the top end of the enlarged portion 352 can pass through the opening 543 without being pressed, but the bottom end needs the decoration 5 to be pressed, the side profile of the tapered structure expands the opening 543, and the enlarged portion 352 can pass through the opening 543 completely. The dovetail groove 541 is matched with the enlarged part 352, when the decoration 5 is in forced contact with the enlarged part 352, the enlarged opening 543 of the enlarged part 352 enters the dovetail groove 541, and after the enlarged part 352 enters the dovetail groove 541, the contracted part 542 is restored, and the contracted part 542 fastens the enlarged part 352, so that the flat hook structure 35 and the hook groove 54 form barb clamping.

The stability that decoration 5 and inserts 3 are connected is strengthened with the block of hook groove 54 to flat structure 35, improves the problem that leather sheath 4 drove the removal of decoration 5.

When the decoration 5 is installed, one end of the decoration 5, which is provided with the hook groove 54, enters the embedding cavity 33, and the decoration 5 is pressed downwards, so that the flat hook structure 35 and the hook groove 54 complete barb clamping.

The mosaic cavity is filled with glue, and the glue is bonded with any two or more of the decorative part, the leather sheath, the side wall of the insert and the middle vertical wall. In the embodiment of the present application, the space on one side of one end of the decorative part 5 and the leather sheath 4 is filled with glue in the embedding cavity 33, that is, the glue is filled in the first groove 331 and bonds the inner walls of the decorative part 5, the leather sheath 4 and the insert 3. The connection strength among the decoration 5, the leather sheath 4 and the insert 3 is improved.

As shown in fig. 5, the tops of the two side walls 32 and the middle vertical wall 34 are provided with inclined surfaces 37 facing the decoration 5, the end part of the leather sheath 4 is bent along the inclined surfaces 37 on the side walls 32 to enter the embedding cavity 33, the end part of the leather sheath 4 after bending is tightly attached to the top end of the insert 3, and the gap between the leather sheath 4 and the insert 3 is reduced, so that a space is prevented from being provided for the deformation of the leather sheath 4, the deformation of the leather sheath 4 is reduced, and the positions of the leather sheath 4, the insert 3 and the decoration 5 are stabilized. Be equipped with on the decoration 5 with inclined plane 37 assorted wedge structure 53, flat structure 35 of colluding provides the pull-out power of perpendicular to diapire 31 for decoration 5 for wedge structure 53 compresses tightly leather sheath 4 both ends on inclined plane 37, reduces leather sheath 4 because of ageing or expend with heat and contract with cold and cause the deformation of production.

Specifically, the decoration part 5 comprises an insertion section 51 and a decoration part 52 which are distributed from the inner side to the outer side of the embedded cavity 33 in sequence, the decoration part 52 is gradually reduced from the decoration surface exposed out of the steering wheel to one side of the insertion section 51, and a wedge-shaped structure 53 matched with the inclined surface 37 is formed on the inner side of the decoration part 52. After the decoration 5 is engaged with the flat hook structure 35, the decoration 52 presses the leather cover 4 against the inclined surface 37.

As shown in fig. 2 and 3, the insert 3 is integrally molded with the foam body 2 in a foaming mold. And the bottom wall 31 is provided with a positioning groove 38 at the outer side of the embedding cavity 33, and the framework 1 is provided with a positioning boss 11 embedded in the positioning groove 38. In the foaming process, the positioning boss 11 on the framework 1 is matched and clamped with the positioning groove 38, so that the relative positions of the framework 1 and the insert 3 in the foaming process are stabilized, and the problem of flash caused by the instability of the insert 3 in the foaming process is avoided.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A steering wheel comprises a foaming body, a framework, an insert, a leather sleeve and a decoration piece, wherein the framework and the insert are arranged in the foaming body, the insert comprises a bottom wall and two side walls, an embedded cavity is formed inside the insert, the two side walls extend to the surface of the foaming body from the bottom wall, the leather sleeve wraps the periphery of the foaming body, the two end parts of the periphery of the foaming body are embedded into the embedded cavity, the decoration piece is at least partially embedded into the embedded cavity from the middle of the two end parts of the leather sleeve and is respectively in interference fit with the two end parts of the leather sleeve, the steering wheel is characterized in that,

the insert is also provided with a middle vertical wall, one end part of the leather sheath is embedded to one side of the middle vertical wall, the decorating part and the other end part of the leather sheath are embedded to the other side of the middle vertical wall together, the decorating part, the two end parts of the leather sheath and the middle vertical wall are in interference fit with each other in the embedding cavity, and glue is bonded with the decorating part and the middle vertical wall.

2. The steering wheel according to claim 1, wherein a flat hook structure is fixed on the bottom wall of the embedded cavity, a hook groove is arranged at the bottom of the decorating part, the decorating part enters the embedded cavity, and the flat hook structure is embedded into the hook groove to realize barb clamping.

3. The steering wheel according to claim 2, wherein the top of each of the two side walls and the top of the middle standing wall has an inclined surface facing the decoration, the decoration is provided with a wedge-shaped structure matching with the inclined surface, and the flat hook structure provides a pulling-out force perpendicular to the bottom wall for the decoration, so that the wedge-shaped structure presses the two end portions of the leather sheath against the inclined surfaces.

4. The steering wheel according to any one of claims 1 to 3, wherein the bottom wall of the insert is provided with a positioning groove outside the embedding cavity, the skeleton is provided with a positioning boss, and the positioning boss is embedded into the positioning groove, so that the insert and the skeleton are positioned and then placed into a foaming mold for integral foaming and molding.

5. The steering wheel of claim 4, wherein the bottom wall of the insert is provided with protruding stopper portions on the outer sides of the two side walls, and the stopper portions enter the foam on both sides of the insert.

6. The steering wheel of any of claims 2-3, wherein the tick structure comprises a connecting section and an enlarged section, the connecting section extends from the bottom wall of the inlay cavity to the open side of the inlay cavity, the enlarged section is located at the top end of the connecting section, and the enlarged section tapers in width outward from the connecting section;

the hook groove comprises a dovetail groove arranged at the bottom of the decorating part and a contraction part for closing part of the dovetail groove, and an opening is formed in the contraction part;

7. The steering wheel of claim 6, wherein the flat hook structure is a continuous structure extending in the same direction as the side wall or a segmented structure spaced apart from each other.

8. The steering wheel of any of claims 1-3, wherein the inlay cavity is filled with a glue that bonds any two or more of the trim piece, the holster, the insert side wall, and the intermediate riser wall.

9. A steering wheel according to any of claims 1 to 3, wherein the bottom and side walls of the insert are perpendicular to one another, the upstanding intermediate wall and side wall extending parallel to one another.

10. The steering wheel of claim 9, wherein the insert is disposed along the hub of the steering wheel, the upper edges of the two side spokes and the lower rim of the steering wheel to form a closed loop structure.