JPH0243661B2 - SUTEARINGUHOIIRU - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a steering wheel with a stationary pad portion, which is equipped with a pad non-rotation mechanism that holds the pad portion stationary even when the steering wheel is rotated. This invention relates to a steering wheel in which the mounting angle of a pad can be minutely adjusted in the final process of assembling the steering wheel body.

Conventional technology Conventionally, in steering wheels equipped with this type of pad non-rotation mechanism, when the steering wheel body is assembled, the pad may deviate slightly from its proper position in the circumferential direction due to the relationship between the serration pitch between the shaft and the boss. It was hot. However, since there is no way to easily correct this deviation in the circumferential direction to the proper position, the steering wheel body must be reassembled or left in place.
There were problems in that it took time to assemble and spoiled the sense of luxury of the car.

Purpose This invention was made in order to solve the problems existing in the above-mentioned prior art, and its purpose is to easily assemble the pad part to the pad side sun gear in the final process of assembling the steering wheel body. To provide a steering wheel that not only shortens the time required for assembly by making it possible to adjust the minute angle of a pad part, but also does not impair the sense of luxury.

Configuration The present invention is a steering wheel with a stationary pad portion, and has a configuration in which a minute angle adjustment mechanism for the pad portion is provided between the pad side sun gear and the pad portion.

Embodiment Hereinafter, an embodiment of a static pad type steering wheel embodying the present invention will be described with reference to FIGS. 1 and 2. As shown in FIG. 2, a boss plate 3 is fastened to an end of a steering shaft 2 passing through a column 1 of an automobile with a nut 4. A ring portion 5 for performing a steering operation is provided at the tip of a spoke portion 6 extending from the boss plate 3.

A column-side sun gear 7 is supported on the column-side boss portion 3a of the boss plate 3 via a bearing 8 so as to be rotatable relative to the planetary shaft 13, and is fixed to the column 1 with a bolt (not shown). . A pad side sun gear 9 is supported on the pad side boss portion 3b on the boss plate 3 side via a bearing 8 so as to be rotatable relative to the planetary shaft 13. Note that the number of teeth of the column side sun gear 7 and the pad side sun gear 9 are the same. A mounting tube portion 9a is provided at the upper end of the pad side sun gear 9, and a bottom plate 10a of the pad portion 10 is fitted therein. The bottom plate 10a of the pad section 10, on which electronic devices (not shown) such as various switches, sound generators, and displays are mounted, is provided with two arc-shaped fastening holes 11. Screw the bolt 12 into the pad side sun gear 9 through these tightening holes 11,
A pad portion 10 is attached to the pad side sun gear 9.

A column-side planetary gear 14 is provided at the column-side end of the planetary shaft 13 that passes through the outer periphery of the boss plate 3.
is firmly fixed and meshes with the column side sun gear 7. A pad-side planetary gear 15 fixed to the pad-side end of the planetary shaft 13 has the same number of teeth as the column-side planetary gear 14, and meshes with the pad-side sun gear 9.

Next, the functions and effects of the pad stationary steering wheel constructed as described above will be explained.

Now, when the ring portion 5 is rotated to perform a steering operation, the boss plate 3 is rotated, and the planetary gears 14 and 15 fixed to both planetary shafts 13 rotate around the sun gears 7 and 9. revolve. At this time, the planetary gears 14 and 15 fixed to the common planetary shaft 13 rotate reliably in synchronization, and since the column side sun gear 7 is fixed to the column 1, the pad side sun gear 9 rotates. It doesn't move. Therefore, the pad portion 10 can reliably remain stationary with respect to the column 1.

By the way, in the final assembly process of the steering wheel, the bottom plate 10a of the pad portion 10 is fixed to the pad-side sun gear 9 with bolts 12 through the fastening holes 11 in the shape of long circular arc holes. Therefore, by loosening the bolt 12, the pad portion 10 can be rotated about the mounting cylinder portion 9a by the angle of the tightening hole 11, and the pad portion 10 can be rotated to an appropriate position.

Therefore, compared to conventional steering wheels, this steering wheel allows minute angle adjustments to be made to the proper position of the pad portion 10 more easily during the final assembly process. Moreover, the working time can be reduced compared to the conventional process of adjusting the mounting position. In addition, in this embodiment, the bottom plate 1 of the pad portion 10 is attached to the pad side sun gear 9.
Although the bolts 12 are used to fix the bolts 12 through the arc-shaped fastening holes 11 drilled in the hole 0a, a fixing member such as a fastener may be used instead of the bolts.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4. In this embodiment, the mounting configuration of the bottom plate 10a of the pad portion 10 and the pad side sun gear 9 is different from that of the first embodiment. That is, in this embodiment, one end of a coiled tension spring 16 is engaged with the upper surface of the pad-side sun gear 9, and the other end is engaged with an engagement member that slides on the bottom plate 10a along the tightening hole 11. It is attached to member 17. In addition,
The fastening member 17 consists of a pair of sliding pieces 17a that slide on both sides of the tightening hole 11, and a connecting rod 17b that is installed between the sliding pieces 17a.

When performing minute angle adjustment of the pad section, the bottom plate 10a of the pad section 10 may be pulled up against the elasticity of the spring 16, shifted to an appropriate position, and then returned to the proper position. At this time, the engaging member 17 moves relatively on the bottom plate 10a and is maintained at its original position.

Therefore, this second embodiment also has the same effect as the first embodiment, but the pad portion 10 is simply lifted up against the elasticity of the spring 16 and rotated. It is easier to adjust than the first embodiment.

Next, another example of the second embodiment will be explained with reference to FIGS. 5 and 6. In this other example, pad portion 1
0 bottom plate 10a and pad side sun gear 9 are attached through a tightening hole 18 with a T-shaped cross section provided in the bottom plate 10a.
and a fastening member 19 extending over the same tightening hole 18,
This embodiment differs from the second embodiment in that it consists of a spring 16 that connects the fastening member 19 and the pad side sun gear 9, but the operation and effect are the same.

Furthermore, in the first embodiment, second embodiment, and other examples of the second embodiment described in detail above, the pad portion 10
The bottom plate 10a is shown with a fastening hole 11 in the shape of an arcuate hole or a fastening hole 18 with a T-shaped cross section, but it is possible to provide this in the sun gear on the pad side and reverse the tightening configuration. It may also be a configuration.

Next, a third embodiment of the present invention will be described with reference to FIGS. 7 and 8. In this embodiment, the pad portion 1
A cylinder 21 is provided on the bottom plate 10a of the rod 20, and a spring 16 is interposed between the inner end of the rod 20 and the bottom of the cylinder 21 to urge the rod 20 outward. Furthermore, an engaging pawl 20a is provided at the outer end of the rod 20. A toothed portion 22 is formed circumferentially in the center of the bottom plate 10a of the pad portion 10.
The engaging claw 20a can be engaged with the second recess 22a.

By the way, when assembling the pad portion 10 to the pad side sun gear 9, the rod 20 fixing the bottom plate 10a of the pad portion 10 to the pad side sun gear 9 is
When the bottom plate 10a is forcibly rotated, the convex portion 22b of the tooth portion 22 relatively passes over the rod 20 and is engaged with the next concave portion 22a. In this way, pad part 1
0 is rotated and adjusted to an appropriate position.

Therefore, in order to rotationally adjust the pad portion 10 of this third embodiment to an appropriate position, the bottom plate 1 of the pad portion 10 is
Since it is only necessary to rotate 0a, adjustment is easier than in the first embodiment.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In this embodiment, the base end of an L-shaped rod 25 is rotatably attached to the pad side sun gear 9 by a pin 24, and the engaging pawl 25 at the tip thereof is rotatably attached.
5a meshes with the recess 22a of the tooth portion 22. The rod 25 is urged toward the toothed portion 22 by a coiled tension spring 16 whose one end is engaged with a fixing pin 26.

Therefore, the pad portion 1 is attached to the pad side sun gear 9.
0, when the bottom plate 10a of the pad part 10 is rotated, the rod 25 is pushed by the convex part 22b of the tooth part 22 and relatively moved to the next concave part 22a,
The pad portion 10 is rotationally adjusted to an appropriate position.

Therefore, the fourth embodiment of the present invention has the same effect as the third embodiment, but in this embodiment, the L-shaped rod 25 is rotatably fixed by the pin 24 and attached by the spring 16. Since it has a simple structure in which the second embodiment is energized, the cost can be reduced compared to the third embodiment.

Next, a fifth embodiment of the present invention will be described with reference to FIG. In this embodiment, a plurality of needle-shaped members 27 are provided on the pad-side sun gear 9, and a receiving member 28 made of a soft material is embedded in a recessed portion of the bottom surface of the bottom plate 10a of the upper pad portion 10. Then, a coiled tension spring 16 is engaged between the pad side sun gear 9 and the bottom plate 10a of the pad portion 10. The tensile force of the spring 16 causes the needle-like member 27 to stick into the soft receiving member 28 and to fix their positions with each other.

In the final assembly process of the steering wheel, in order to assemble the pad portion 10 to the pad side sun gear 9, the bottom plate 10a of the pad portion 10 is attached to the spring 1.
All you have to do is pull it up against the elasticity of 6, shift it to the proper position, and return it again.

Therefore, this embodiment also provides the same effects as the second embodiment.

Note that this invention can also be embodied in the following other examples. In order to prevent the pad side sun gear 9 from coming off from the bottom plate 10a of the pad portion 10, As shown in FIG. 11, the pad-side sun gear 9 may be provided with a retaining portion 23, and the resin bottom plate 10a of the pad portion 10 may be forcibly press-fitted into the pad-side sun gear 9.

Furthermore, in the embodiments and other examples described above, small angles were adjusted between the bottom surface of the pad portion and the pad side sun gear, but the cover body of the pad portion and the bottom surface of the pad portion, or Any two objects between the pad part and the pad side sun gear, such as between the cover body of the part and the pad side sun gear, may be provided with the minute angle adjustment mechanism.

Effects As detailed above, this invention provides a minute angle adjustment mechanism for the pad portion between the pad side sun gear and the pad portion, so that the pad side sun gear can be adjusted in the final assembly process of the steering wheel. When assembling the pad part, even if the pad part is accidentally installed out of alignment in the circumferential direction, the pad part can be easily returned to the proper position by making minute angle adjustments, which can significantly shorten the work time. This has an excellent effect of reducing costs.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a first embodiment of this invention;
2 is a longitudinal sectional view of the central portion of FIG. 1, FIG. 3 is a plan view showing a second embodiment of the invention, FIG. 4 is a longitudinal sectional view of the central portion of FIG. 3, and FIG. 5 is a longitudinal sectional view of the central portion of FIG. A plan view showing another example of the embodiment, FIG. 6 is a vertical cross-sectional view of the central part of FIG. 5,
Fig. 7 is a plan view of the third embodiment, Fig. 8 is a longitudinal cross-sectional view of the central part of Fig. 7, Fig. 9 is a partially enlarged plan view of the fourth embodiment, and Fig. 10 is a plan view of the fifth embodiment. FIG. 11 is a partially enlarged sectional view showing a specific example. Boss plate...3, Column side sun gear...
7, Pad side sun gear...9, Tightening hole...11,
18, Bolt...12, Planetary shaft...13,
Spring... 16, engaging member... 17, 19, engaging claw... 20a, 25a, needle member... 27, receiving member... 28.

Claims (1)

[Scope of Claims] 1. A steering wheel with a stationary pad portion, characterized in that a minute angle adjustment mechanism for the pad portion is provided between the pad side sun gear and the pad portion. 2. The minute angle adjustment mechanism includes a fastening hole in the shape of an arcuate long hole formed in the bottom plate of the pad portion, and a fixing member such as a bolt that is inserted into the fastening hole to fix the bottom plate to the sun gear on the pad side. A steering wheel according to claim 1, comprising: 3. The minute angle adjustment mechanism allows the pad portion to be adjusted by a tightening hole in the shape of an elongated circular arc formed in the bottom plate of the pad portion, and a spring that is inserted through the tightening hole and has one end attached to the sun gear on the pad side. 2. The steering wheel according to claim 1, further comprising a locking member biased toward the upper surface of the bottom plate. 4. The minute angle adjustment mechanism is slidably fitted into a tightening hole with a T-shaped cross section provided in the bottom plate of the pad portion, and one end is engaged with the sun gear on the pad side. The steering wheel according to claim 1, further comprising a locking member urged toward the tightening hole by a spring. 5. The minute angle adjustment mechanism is provided on the bottom plate of the pad portion, and meshes with a cylinder having a rod that is biased in a protruding direction by a spring,
The steering wheel according to claim 1, further comprising a tooth portion provided on the upper surface of the pad-side sun gear. 6. The minute angle adjustment mechanism has its base end pivoted on the bottom plate of the pad portion, and is provided on the upper surface of the sun gear on the pad side so that the rod meshes with an L-shaped rod that is biased toward the tooth portion by a spring. The steering wheel according to claim 1, wherein the steering wheel is constituted by a toothed portion. 7. The minute angle adjustment mechanism includes a receiving member made of a soft material provided on the back surface of the bottom plate of the pad portion, a needle-like member provided on the upper surface of the sun gear on the pad side, and the needle-like member being attached to the receiving member. The steering wheel according to claim 1, further comprising a spring member for insertion.