JPH0731561U - Steering wheel - Google Patents

Abstract

(57) [Summary] [Structure] The pad body 12 is attached to the boss portion 15 of the steering wheel body 11 of the automobile through the attachment member 27.
A metal plate is bent into a substantially M-shape on the mounting member 27 to form a pair of protrusions 51 and 52. A first engaging portion 57 is provided on the inclined surface of each protruding portion 51, 52, and a second engaging portion 58 is cut and formed on each protruding portion 51, 52. A boss plate engaging portion 54 is formed continuously with the protruding portion 51 on one side, and the protruding portion on the other side is formed.
The mounting portion 55 is bent and formed continuously with 52. The mounting portion 55 is fixed to the fixing portion 28 of the boss plate 22 with the screw 44, and the boss plate engaging portion 54 is engaged with the engaging hole 29 of the boss plate 22. The protrusions 51 and 52 are respectively inserted into a pair of mounting holes 38 formed in the mounting plate 34 of the pad body 12. The mounting plate 34 is elastically held by the first and second engaging portions 57 and 58. [Effect] The pad body 12 can be easily and firmly attached to the steering wheel body 11. Even if the pad body 12 is strongly pressed, the mounting member 27 is unlikely to be deformed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a steering wheel in which a pad body is attached to a steering wheel body.

[0002]

[Prior art]

 Conventionally, for example, a steering wheel described in Japanese Utility Model Laid-Open No. 5-1356 is known.

This steering wheel is configured such that a pad body including a shock absorber and a cover body is removably attached to an upper portion of the steering wheel body on the occupant side through a mounting member.

The mounting member has a protrusion formed by bending an elastically deformable metal plate into a substantially U shape, and one end of the protrusion is a boss plate of the steering wheel body. It is screwed, and the other end of the protrusion is engaged and fixed to the boss plate. In addition, the projection is designed to be press-fitted into a mounting hole formed in the mounting plate of the shock absorber, and an upper engaging portion and a lower engaging portion for holding the mounting plate are formed in a bent shape. A locking piece facing the upper surface of the mounting plate is cut and raised.

The mounting member is fixed to the steering wheel body by screwing it to the boss plate, and the mounting plate is held between the upper and lower engaging portions to keep the height of the pad body at a predetermined position. It is held, and the cut-and-raised locking pieces prevent the pad body from slipping out.

[0006]

[Problems to be solved by the device]

 However, in the above-described conventional configuration, for example, if an excessive load is applied when the pad body is assembled to the steering wheel body, the protruding portion that is bent in a substantially U shape is elongated and deforms easily to come off from the mounting hole. Therefore, it is necessary to assemble the pad body with an appropriate load, which causes a problem that the assembly work of the pad body becomes complicated.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a steering wheel in which a pad body can be assembled in a predetermined position of a steering wheel body with good workability.

[0008]

[Means for Solving the Problems]

 The steering wheel of the present invention is a steering wheel in which a pad body is attached to a steering wheel body via a mounting member, and a fixing portion is provided on either one of the steering wheel body and the pad body, and the other is provided on the other side. A mounting plate having a pair of mounting holes is provided, and the mounting member is fixed to the fixing part by using a fixing means, and each mounting plate is formed so as to expand from the tip side. A pair of projecting portions that are respectively inserted into the holes, a connecting portion that connects the base end sides of these projecting portions to each other, and a first portion that is formed on each of the projecting portions and that abuts on the fixing portion side of the mounting plate. Of the engaging portion and each of the protruding portions, is inserted into each of the attaching holes and abuts on the attaching plate, and elastically clamps the attaching plate between the engaging portion and the first engaging portion. Second engaging part It is those with a.

[0009]

[Action]

 In the steering wheel of the present invention, the mounting portion of the mounting member is fixed to the fixed portion provided on one of the steering wheel body and the pad body using the fixing means. Further, when the protrusions forming a pair of the attachment members are inserted into the attachment holes forming a pair of the attachment plates provided on the other of the steering wheel body and the pad body, the first and second protrusions formed on these protrusions are inserted. The mounting plate is elastically clamped by the engaging portion. In this state, the pad body is assembled to the steering wheel body at a predetermined position via the mounting member.

[0010]

【Example】

 Hereinafter, a configuration of an embodiment of the steering wheel of the present invention will be described with reference to the drawings.

In FIG. 2, reference numeral 10 denotes a steering wheel, which is configured by assembling a pad body 12 and the like to a steering wheel main body 11. The steering wheel main body 11 includes an annular rim portion 14, a boss portion 15 located inside the rim portion 14, and a plurality of spoke portions 16 connecting the rim portion 14 and the boss portion 15. Has been done.

As shown in FIG. 1, the boss portion 15 of the steering wheel body 11 is formed with a fitting hole 21 a located at the center of the rim portion 14 and fitted into a steering shaft (not shown). A boss 21 made of metal is provided, and a boss plate 22 is fixed to an upper part of the boss 21 on the passenger side. Further, the core metal 16a of the spoke portion 16 is fixed to the boss 21 and the boss plate 22 by welding or the like.

As shown in FIG. 2, a pair of clamp spring mounting portions 23, 23 on both sides are provided on the front side portion of the boss plate 22 and the rear side portion of the boss plate 22 is provided on the rear side portion. , A mounting member mounting portion 24 is provided, and the clamp springs 26, 26 mounted on the clamp spring mounting portions 23, 23 and the mounting member 27 mounted on the mounting member mounting portion 24 allow the boss plate to be mounted. The pad body 12 is detachably attached to the upper side of 22.

Further, as shown in FIG. 1, in the mounting member mounting portion 24, a fixing portion 28 formed by bending an end portion of the boss plate 22 downward, and both side directions provided near the fixing portion 28. Is formed in the fixing portion 28, and a screw hole 28a whose axial direction is substantially parallel to the surface direction of the boss plate 22 is formed in the fixing portion 28.

Further, the pad body 12 is configured by combining a cover body 31 that covers the boss portion 15 of the steering wheel body 11 and a shock absorber 32 that is arranged below the cover body 31. . The cover body 31 is integrally formed of synthetic resin or the like, and has a grid-shaped rib 31a formed on the lower surface side. Further, the shock absorber 32 includes an upper plate portion 33 facing the lower surface side of the cover body 31 and a mounting plate 34 facing the boss plate 22 of the steering wheel body 11, which are paired in a front and rear direction in a plastically deformable arc shape. The end plates 35 and 36 are connected to each other to form a substantially cylindrical shape.

Further, the mounting plate 34 is formed with an engagement hole (not shown) facing the clamp spring mounting portions 23, 23 of the boss plate 22 so that the clamp springs 26, 26 are detachably engaged. At the same time, a pair of front and rear mounting holes 38, 38 are formed so as to face the mounting member mounting portion 24 of the boss plate 22 and have both sides as longitudinal directions.

A horn switch (not shown) is provided above the upper plate portion 33 of the shock absorber 32. When the cover body 31 is pushed, the horn switch is pushed and provided on the vehicle body side. The horn device is set to be blown.

A lower cover 41 made of synthetic resin is attached to the lower side of the boss 15 of the steering wheel body 11. The lower cover 41 is formed with a slip ring mounting portion 42 that fits around the boss 21, and the lower surface of the slip ring mounting portion 42 has an annular shape made of a conductive metal plate or the like. The slip ring 43 is attached. Then, a contact piece protruding from a combination switch (not shown) provided on the vehicle body side is slidably brought into contact with the slip ring 43 so that electrical components provided on the vehicle body side and the steering wheel body 11 that is rotationally operated. The parts are electrically connected.

Further, on the lower cover 41, facing the screw hole 28a of the fixing portion 28 of the boss plate 22, a screw 44 as a fixing means to be screwed into the screw hole 28a and the screw 44 are screwed. An opening 46 through which a tool 45 for insertion is inserted is formed.

As shown in FIGS. 1 to 4, the mounting member 27 that connects the steering wheel body 11 and the pad body 12 is formed of one elastically deformable thin metal plate. A pair of projecting portions 51 and 52 each bent in an expanded shape from a tip portion that is bent in an arc shape are connected by a connecting portion 53 that is bent in an arc shape in the center, and are formed in a substantially M-shaped cross section. At the same time, a boss plate engaging portion 54 having a substantially U-shaped cross section is bent and formed continuously with the protruding portion 51 on one side, and further has a substantially L-shaped cross section continuously with the protruding portion 52 on the other side. An eggplant attachment portion 55 is formed.

When the protruding portions 51 and 52 are inserted into the mounting holes 38 and 38 from the lower surface side of the mounting plate 34 of the pad body 12, the lower portions of the mounting holes 38 and 38 are located at intermediate positions in the vertical dimension. The first engaging portion 57 is formed at each of four positions which are in contact with the corners of the mounting plate 34 and contact the lower surface of the mounting plate 34.

Further, each of the protrusions 51 and 52 is cut and raised in the opposite direction from the vicinity of the tip, and a pair of second engaging portions 58 on both sides having a substantially V-shaped cross section are formed. . Then, these second engaging portions 58 are press-fitted into the mounting holes 38 while elastically deforming, and come into contact with the upper surface side of the mounting plate 34 in a state where the second engaging portions 58 pass through the mounting holes 38 and return and deform. The mounting plate 34 of the pad body 12 is elastically sandwiched between the second engaging portion 58 and the first engaging portion 57 to be held at a predetermined position. There is.

Further, the boss plate engaging portion 54 has a substantially U-shaped cross section that is inserted into the engaging hole 29 of the boss plate 22 from above and elastically clamps the upper and lower surfaces of the boss plate 22. An inclined portion 54a for insertion is formed so as to incline downward.

The mounting portion 55 has a vertical wall portion 55a that abuts on the fixed portion 28 of the boss plate 22 and a horizontal wall portion 55b that abuts on the upper surface of the boss plate 22, and the vertical wall portion 55a includes A through hole 55c for the screw 44 is formed, and a protrusion 55d formed by cutting and raising a part of the protrusion 52 is connected to the lateral wall 55b. Therefore, with the boss plate engaging portion 54 engaged with the engaging hole 29 of the boss plate 22 and the mounting portion 55 abutting against the fixing portion 28 of the boss plate 22, the fixing portion 28 is fixed with the screw 44. The mounting member 27 is securely fixed to the boss plate 22 by tightening and fixing it to the fixing portion 28.

Although not shown, the clamp springs 26, 26 attached to the front side of the boss plate 22 include, for example, a base plate and a pair of leg pieces protruding from both ends of the base plate. The board part is fixed to one of the boss plate 22 and the mounting plate 34 with a screw or the like, and each leg piece is inserted into an engaging hole formed in the other. By fitting, the mounting plate 34 of the pad body 12 and the boss plate 22 of the steering wheel body 11 are detachably connected.

Next, the mounting operation of this embodiment will be described.

First, with the pad body 12 removed from the steering wheel body 11, the lower cover 41 is attached to the lower side of the steering wheel body 11 and clamped to the clamp spring attachment portions 23 of the boss plate 22 respectively. The spring 26 is fixed with a screw or the like, and the mounting member 27 is fixed to the mounting member mounting portion 24 of the boss plate 22 with a screw 44 or the like.

Then, in the assembly process of the automobile, after the boss 21 of the steering wheel body 11 is fitted to the upper end of a steering shaft (not shown) and tightened with a nut, the boss portion 15 of the steering wheel body 11 is moved downward from above. The pad body 12 is pushed in and attached (in the direction of arrow F shown in FIG. 3).

At this time, as shown in FIG. 3, the tip portions of the protrusions 51 and 52 of the attachment member 27 are inserted into the attachment holes 38 of the attachment plate 34 of the pad body 12, and then the protrusions are inserted. The second engaging portions 58 of 51 and 52 are press-fitted while elastically deforming. Then, in a state where these second engaging portions 58 pass through the respective mounting holes 38 and are restored and deformed, the first engaging portions 57 and the second engaging portions 58 of the respective protruding portions 51, 52 are separated from each other. The mounting plate 34 is elastically sandwiched between them, and the pad body 12 is held at a predetermined height position with respect to the boss plate 22 of the steering wheel body 11.

Further, the pad body 12 is also held at a predetermined height position with respect to the boss plate 22 of the steering wheel main body 11 by each clamp spring 26.

On the other hand, when removing the pad body 12 for maintenance or the like, the tool 45 is inserted through the opening 46 of the lower cover 41, and the pad body 12 is pulled out with the screw 44 removed. You can

When reattaching the removed pad body 12, the attachment member 27 is removed from the attachment plate 34 of the pad body 12, and the attachment member 27 is fixed to the boss plate 22 of the steering wheel body 11 with the screw 44. After that, the pad body 12 can be attached by pushing it into the boss portion 15 of the steering wheel body 11 from above.

According to the steering wheel of the present embodiment, the pad body 12 is pushed from the upper side with the mounting member 27 fixed to the boss plate 22, so that the pad body 12 can be easily mounted at a predetermined position. can do.

Further, the mounting plate 34 is provided with the protruding portions 51, 52 of the mounting member 27, into which the protruding portions 51, 52 of the mounting member 27 are inserted, respectively. Since the first and second engaging portions 57 and 58 elastically hold the pad body 12, the pad body 12 can be securely held on the steering wheel main body 11, and the pad body 12 is provided on the surface of the boss plate 22. It is also possible to reliably prevent movement in the direction.

Further, when the projecting portions 51, 52 of the mounting member 27 are strongly pushed into the mounting holes 38 of the mounting plate 34, or when the driver hits the pad body 12 in the event of a car collision or the like, The first engaging portions 57 formed at four positions contact the mounting plate 34, and the base ends of the respective protruding portions 51, 52 are connected to each other via the connecting portion 53 having a small area to enhance the strength. Therefore, it is possible to prevent the protruding portions 51 and 52 from being deformed and easily coming off the mounting hole 38. Therefore, the work of assembling the pad body 12 can be facilitated, and the pad body 12 can be more reliably prevented from falling off.

Further, since the one mounting member 27 can hold the pad body 12 in the fixed position and prevent the pad body 12 from falling off, the number of parts can be increased as compared with the case where separate parts are used for holding the fixed position and for preventing the falling off. And the cost can be reduced, and the internal structure of the boss portion 15 can be simplified and downsized.

In the embodiment shown in FIGS. 3 and 4, the second engaging portion 58 is cut and raised in the direction away from each of the projecting portions 51 and 52 of the mounting member 27. For example, as shown in FIGS. 5 and 6, the second engaging portions 61, 61 may be formed by cutting and raising from the respective projecting portions 51, 52 of the mounting member 27 in the directions approaching each other.

When the second engaging portions 61, 61 are formed in such a manner that the protruding portions 51, 52 approach each other in this manner, the pad body 12 is directed downward (see FIG. 5). When a strong load is applied, the protrusions 51, 52 of the mounting member 27 rotate while deforming in a direction in which they approach each other (direction of arrow A shown in FIG. 5). The engaging portions 61, 61 are more firmly engaged with the portion between the mounting holes 38, 38 of the mounting plate 34, so that the pad body 12 can be more reliably prevented from coming off.

Further, in each of the above-described embodiments, as shown in FIGS. 7 and 8, the locking piece 63 facing the upper surface of the mounting plate 34 of the pad body 12 is provided from at least one of the protrusions 51 and 52. The mounting plate 34 can be prevented from coming off by forming by cutting and raising.

Further, in each of the above embodiments, the fixing portion 28 and the engaging hole 29 are directly formed in the boss plate 22, but for example, a separate support plate is provided in the boss plate 22 and fixed to this support plate. The portion 28 and the engagement hole 29 can also be formed.

In each of the above-described embodiments, the fixing portion 28 for fixing the mounting member 27 is provided on the steering wheel body 11 side, and the mounting hole 38 is formed on the pad body 12 side. It is also possible to form a mounting hole 38 on the side and to provide a fixing portion 28 for fixing the mounting member 27 on the side of the pad body 12.

Although the screw 44 is used as the fixing means in the above embodiment, a nut or the like may be used, for example.

Further, in the above-mentioned embodiment, the pad body 12 is constructed by using the cover body 31, the impact absorbing body 32 and the like, but it is also possible to construct the pad body 12 by only the soft or hard cover body, or the airbag. It can also be configured by a device or the like.

[0044]

[Effect of device]

 According to the steering wheel of the present invention, the steering wheel main body and the pad body are fixed to the fixing portion provided on either one of the steering wheel main body and the pad body while the mounting portion of the mounting member is fixed using the fixing means. By inserting the protrusions that form a pair of mounting members into the mounting holes that form a pair of mounting plates provided on the other side, the pad body can be easily placed at a predetermined position on the steering wheel body through this mounting member. Can be assembled. Further, the mounting plate is such that the expanding projections of the mounting member are inserted into the paired mounting holes, respectively, and the first and second engaging portions respectively provided on these projections elastically elastically move the mounting plate. Since it is held, the pad body can be securely held on the steering wheel body. Further, since the base ends of the pair of protrusions are connected to each other through the connecting portion, the protrusions are deformed even when the protrusion of the mounting member is strongly pushed into the mounting hole of the mounting plate. It is possible to prevent the parts from coming off easily and to facilitate the assembly work.

[Brief description of drawings]

1 is a sectional view taken along the line I-I of FIG. 2 showing an embodiment of a steering wheel of the present invention.

FIG. 2 is a plan view of the above steering wheel.

FIG. 3 is a sectional view of a part of the steering wheel of the above.

FIG. 4 is a perspective view of the same mounting member.

FIG. 5 is a partial sectional view of a steering wheel according to another embodiment of the present invention.

FIG. 6 is a perspective view of the same mounting member.

FIG. 7 is a sectional view of a part of a steering wheel showing still another embodiment of the present invention.

FIG. 8 is a perspective view of the same mounting member.

[Explanation of symbols]

 10 Steering wheel 11 Steering wheel body 12 Pad body 27 Mounting member 28 Fixing part 34 Mounting plate 38 Mounting hole 44 Screws as fixing means 51, 52 Projecting part 53 Connecting part 55 Mounting part 57 First engaging part 58 Second Engagement part

Claims (1)

[Scope of utility model registration request] 1. A steering wheel for mounting a pad body to a steering wheel body via a mounting member, wherein a fixing portion is provided on either one of the steering wheel body and the pad body, and a pair is mounted on the other. A mounting plate having a hole is provided, and the mounting member is fixed to the fixing part by using a fixing means, and the mounting member is formed in an expanded shape from the tip side and inserted into each mounting hole of the mounting plate. Paired protrusions, a connecting portion that connects the base end sides of these protrusions to each other, and a first engaging portion that is formed on each of the protrusions and that abuts on the fixing portion side of the mounting plate. And a second engagement formed on each of the protrusions, inserted into each of the mounting holes, abutting on the mounting plate, and elastically sandwiching the mounting plate with the first engaging portion. It is equipped with Steering wheel to be.