JPS6242599Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a steering wheel for a vehicle such as an automobile.

Technical background of the invention Conventionally, in a steering wheel of an automobile, for example, as shown in FIG. I'm wearing it.

Problems with the Background Art However, with this type of structure, if the vehicle collides with another vehicle and the driver hits the steering wheel, the locking piece may be damaged or come off, causing the locking piece to become unusable as a pad. The horn button may fall off, exposing the internal horn mechanism and creating a dangerous situation.

Purpose of the invention This invention aims to solve these problems, and aims to improve safety by preventing the pads from falling off when an impact is applied to the steering wheel. be.

Summary of the invention The invention provides a steering wheel body having a boss portion, a spoke portion, and a clip portion, a pad attached to a pad attachment portion of the steering wheel body, and a pad attached to the pad attachment portion of the steering wheel body and the pad. and an engaging means that engages with each other when an impact occurs, and the engaging means of either the pad mounting portion or the pad has an engaging hole, and a tapered protrusion is provided in the center of the engaging hole. The engagement means of either the pad mounting portion or the pad is provided with an engagement leg portion that fits into the engagement hole, and a center portion of the engagement leg portion has a diameter smaller than the large diameter portion of the protrusion. and an insertion hole larger than the small diameter portion, and the engagement leg is expanded by the protrusion inserted into the insertion hole and engaged with the engagement hole at the time of impact. be.

Embodiment of the invention Hereinafter, an embodiment of the invention will be described with reference to FIGS. 2 to 6.

11 is a steering wheel body, and this steering wheel body 11 includes a boss 12 and an outer skin 1.
3, a spoke part 17 in which a spoke core metal 15 welded and connected to the boss 12 was covered with an outer skin 16, and a rim core metal 18 welded and connected to the spoke core metal 15 was covered with an outer skin 19. It consists of a grip part 20.

A horn mechanism mounting plate 21 is welded and fixed to the upper part of the boss 12, and a guide rod 22 made of a screw and a coil spring 2 are mounted on the horn mechanism mounting plate 21.
A plate-shaped horn actuating body 24 serving as a pad attachment portion is provided through the pad attachment part 3 so as to be freely pressed forward and backward, and a plurality of locking holes 25 are bored in this horn actuating body 24.

26 is a horn button as a pad, and this horn button 26 has a cover 28 on an insert 27.
In addition, a locking piece 29 for each locking hole 25 of the horn actuating body 24 is provided protruding from the insert 27, and each locking piece 29 is locked to each locking hole 25.

A pair of engagement means 31 and 32 that engage with each other in the case of an impact on the horn actuating body 24 and the pad 26, which are the pad attachment portions of the steering wheel body 11.
is provided.

One of the engagement means 31 provided in the horn operating body 24 has a cylinder 33 provided from the horn operating body 24 and an engagement hole 34 formed therein, and an upper part is formed in the center of the engagement hole 34. A tapered cylindrical projection 35 having a small diameter is provided via a plurality of support pieces 37 with a gap 36 provided therebetween. Note that the void portion 36 may be formed not only as a hole but also as a thin weak portion that can be easily penetrated.

The other engagement means 32 provided on the horn button 26 as the pad is provided with a cylindrical engagement leg portion 38 that fits into the engagement hole 34 from the insert 27 of the horn button 26. 3
3, the insertion hole 39 is smaller than the lower large diameter part of the projection 35 and larger than the upper small diameter part.
A slit 40 is formed from this insertion hole 39 toward the periphery through which the support piece 37 is inserted. Note that this slit 40 may also be formed as a groove-like thin weak portion so that it can be easily broken.

In such a configuration, when the vehicle collides with another vehicle and the driver hits the steering wheel, the horn button 26 as a pad is lowered and the engaging leg is turned off as shown in FIGS. 5 and 6. Part 2
8 enters the engagement hole 34, the protrusion 35 enters the insertion hole 39 of the engagement leg 38, and the engagement leg 38 engages with the engagement hole 34 while being expanded, and the engagement leg 38 The slit 40 projects downward from the cavity 36 through the support piece 37.

Further, in actual practice, the engagement hole 34 and the projection 35 may be formed in an angular shape, as shown in FIG.

Furthermore, as shown in FIG. 8, the engagement hole 34 and the protrusion 35 may be formed in a flat plate-like portion of the horn operating body 24.

Further, as shown in FIG. 9, a pair of engaging means 3
1 and 32 are arranged oppositely to the above in the horn operating body 24 and the pad 26, one engagement means 31 having an engagement hole 34 is provided in the pad 26, and the other engagement means 32 is provided in the horn operating body 24. Each may be provided.

In addition, as shown in FIG. 10, in the case where the pad 26 is arranged across the boss part 14 and the spoke part 17, and the pad 26 is attached to the spoke part 17 with a screw 41, the spoke part as the pad attachment part is used. Engagement means 31 and 32 may be provided opposite to each other between the pad 17 and the pad 26.

Effect of the invention According to this invention, when an impact is applied to the steering wheel, the engagement holes and engagement legs provided in the pad mounting portion of the steering wheel body and the pad engage with each other while expanding the engagement legs, therefore the pad will not fall off and can be used safely.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional steering wheel, Fig. 2 is a plan view showing an embodiment of the steering wheel of the present invention, Fig. 3 is a sectional view thereof, and Fig. 4 is a sectional view of a conventional steering wheel.
The figure is an exploded perspective view of the main parts, Figures 5 and 6 are cross-sectional views showing their combined state, and Figures 7 to 1 are
FIG. 0 is a sectional view showing other embodiments. 11... Steering wheel body, 14...
Boss portion, 17... Spoke portion, 20... Grip portion, 24... Horn operating body as a pad attachment portion, 26... Pad, 31, 32... Engagement means,
34...Engagement hole, 35...Protrusion, 38...Engagement leg portion, 39...Insertion hole.

Claims (1)

[Scope of utility model registration request] A steering wheel body having a boss portion, a spoke portion, and a grip portion, a pad attached to a pad attachment portion of the steering wheel body, and a pad provided on the pad attachment portion of the steering wheel body and the pad and engaged with each other in the event of an impact. The engagement means of either the pad attachment part or the pad has an engagement hole, and a tapered protrusion is provided in the center of the engagement hole, and the engagement means of either the pad attachment part or The other engagement means of the pad is provided with an engagement leg that fits into the engagement hole, and has an insertion hole in the center part of the engagement leg that is smaller than the large diameter part of the projection and larger than the small diameter part. A steering wheel characterized in that a hole is formed, and the engaging leg portion engages with the engaging hole while being expanded by the projection inserted into the insertion hole when an impact occurs.