JPH05579U - Steering device mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The mounting of the steering device so that the gear mount part of the steering device is structured separately from the gear housing, and the parts can be shared and the production cost can be reduced. To get the structure. [Structure] A gear housing 1 in which a steering shaft 1 and the like are accommodated and arranged in a gear mount portion 20 having a mounting hole 20a for mounting a steering device on a vehicle body.
5, a gear body 15 is provided with a boss 15a having a step 15b at one end thereof. The boss 15a has a collar of a predetermined thickness corresponding to the vehicle type. A gear mount portion 20 separate from the gear housing 15 is positioned and inserted into the step portion 15a via 18, and the mounting position and direction of the gear mount portion 20 can be arbitrarily set.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a mounting structure for a rack-and-pinion type steering device used for a vehicle steering device, for example.

[0002]

[Prior Art]

 Conventionally, a number of proposals have been made for a steering device mounting structure used for a vehicle steering device, as disclosed, for example, in Japanese Utility Model Laid-Open No. 62-72267. The mounting structure of is as shown in Fig. 6.

That is, in FIG. 6, a rack shaft 4, which is a steering link shaft in which a rack that meshes with a pinion that responds to the rotation of the steering shaft 1 is formed, is arranged such that the steering ring shaft 1 and the like are accommodated therein. It is inserted in an outer cylinder member 7 composed of a gear housing 5 and a cylinder 6, and dust boots 8 and 9 surrounding both ends of the rack shaft 4 are integrally attached to openings at both ends of the outer cylinder member 7. It has been done. An end cap 10 is attached to one end 6a of the cylinder 6 to support the rack shaft 4 which is a steering link shaft.

Further, the gear housing 5 of the steering device is integrally provided with a gear mount portion 11 having a mounting hole 11a for mounting on the vehicle body, and the gear mount portion 11 is mounted in the mounting hole 11a. It can be mounted at a predetermined position on the vehicle body via a mountain bush (not shown) and bolts.

[0005]

[Problems to be solved by the device]

 However, the gear mount portion 11 provided in the gear housing 5 of the steering device is integrally formed with the gear housing 5 by casting or the like, and the mounting position and the orientation are different depending on the vehicle type used, so that the parts There is a problem that it cannot be shared.

The present invention has been made by paying attention to the problems of the conventional structure as described above, and the mounting of the steering device capable of reducing the production cost as well as the common use of parts. It is intended to provide a structure.

[0007]

[Means for Solving the Problems]

 In order to achieve such an object, the mounting structure of the steering device of the present invention is such that a gear mount part having a mounting hole for mounting the steering device to a vehicle body is provided with a gear housing in which a steering shaft and the like are housed. Is formed as a separate body, a boss portion is formed on the gear housing portion, the gear mount portion is inserted into the boss portion, and a step portion for positioning the axial position of the gear mount portion is formed on the boss portion. Then configured.

[0008]

[Action]

 Therefore, according to the present invention, based on such a configuration, the gear mount is configured separately from the gear housing, so that when the gear mount is inserted into the gear housing, By installing a collar with a specified thickness between the gear housing and the stepped part, or not inserting this collar, or by simply selecting the orientation of the gear mount part, the mounting position is compatible with other vehicle models. , And the mounting direction can be set, and it can be easily mounted on many types of vehicle bodies by modifying the model by simply changing the mounting angle of the gear mount part.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway front view of a steering device showing a first embodiment of the present invention. In the drawing, the same parts as those of the conventional example are designated by the same reference numerals and described.

First, a rack shaft 4 in which a rack that meshes with a pinion that responds to the rotation of the steering shaft 1 is formed is inserted into an outer cylinder member 17 including a gear housing 15 and a cylinder 16. A boss portion 15a having a step portion 15b is formed on one end side of the gear housing 15, and the boss portion 15a is formed separately from the gear housing 15 via the collar 18. The mount portion 20 is positioned and inserted into the step portion 15b, and the outer cylinder member 17 is press-fitted. The collar 18 is for adjusting the axial position of the mounting hole 20a formed in the gear mount portion 20, and several kinds of collars 18 having different thicknesses are prepared according to the vehicle type. May not be required. Further, the gear mount portion 20 may be inserted into the boss portion 15a by a press-fitting method, but it may be possible to use a pin connection. As shown in FIG. 2, a mountain bushing 19 made of rubber or the like is fitted in the mounting hole 20a formed in the gear mount portion 20, and is mounted on the vehicle body by a tightening bolt 21. .

Therefore, in the steering device mounting structure according to the first embodiment of the present invention, since the gear mount portion 20 is formed separately from the gear housing 15 and assembled, the mounting is performed without using the collar 18. The mounting position in the axial direction can be adjusted simply by setting the thickness of the collar 18, and when the gear mount 20 is assembled to the gear housing 15, the direction of the gear mount 20 is simply changed to the vehicle body. Since the mounting direction of can be set, it can be easily mounted on other vehicle models.

The gear mount 20 is generally molded by casting or the like, but the invention is not limited to this, and it is also possible to mold by press molding or a welded structure. , With a very high degree of freedom.

FIG. 3 is a front view of a steering apparatus showing a second embodiment of the present invention, and FIG. 4 is a sectional view taken along line IV-IV of FIG. In this embodiment, the position of the vehicle body mounting hole 20a formed in the gear housing portion 20 is vertically displaced and is formed with a predetermined angle on the circumference. Although the case where the eye bushes 23, 23 are used for attachment to the vehicle body is shown, the same action and effect can be obtained by assembling in the same manner as in the first embodiment.

FIG. 5 shows a case where the gear mount portion 20 is inserted through the collar 18 into the boss portion 15 a formed at one end of the gear housing 15 in the first and second embodiments. In order to ensure the fastening of the mount portion 20, a pin or key 22 is mounted between both the gear mount portion 20 and the boss portion 15a of the gear housing 15. Therefore, when the gear mount 20 is assembled to the gear housing 15, the axial position and the mounting direction of the gear mount 20 can be reliably fixed. Also in this example, the eye bushes 23, 23 are used for attachment to the vehicle body.

[0016]

[Effect of the device]

 As described above, in the steering device mounting structure according to the present invention, for example, since the gear mount portion of the rack and pinion type steering device is a structure separate from the gear housing, a collar or a collar is not used. By properly selecting the thickness or by assembling only the gear mount part to the gear housing in accordance with the mounting position and direction corresponding to the vehicle type, it is possible to share parts and reduce production cost. ..

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a steering device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a front view of a steering device showing a second embodiment of the present invention.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a sectional view taken along line VV of FIG. 1 showing a third embodiment of the present invention.

FIG. 6 is a partially cutaway front view showing a conventional steering device mounting structure.

[Explanation of symbols]

 1 Steering Shaft 15 Gear Housing 15a Boss 15b Step 20 Gear Mount

Claims (1)

[Claims for utility model registration] [Claim 1] A gear mount portion, in which a mounting hole for mounting the steering device to the vehicle body is formed, is formed separately from a gear housing in which a steering shaft and the like are housed. A steering characterized in that a boss portion is formed on the gear housing portion, the gear mount portion is inserted into the boss portion, and a step portion for positioning an axial position of the gear mount portion is formed on the boss portion. Device mounting structure.