JPH04110671U - Fixed adjustment structure of telescopic steering - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure the fixation and release of the sliding tube when adjusting the telescopic handle (a structure that allows the handle to be adjusted in the longitudinal direction). [Structure] A sliding inner cylinder 4 connected to the handle W is provided in the steering column 3 so as to be slidable in the axial direction, and a lifting bracket 6 fixed to the steering column 3 is provided so as to be able to be raised and lowered and fixed as appropriate. A telescopic adjustment screw rod 10 is rotatably provided on a guide body 7 provided on the lifting bracket 6, and an inclined guide 8 is screwed onto the telescopic adjustment screw rod 10. A telescopic adjustment screw 10 is attached to the shaft end by rotating the telescopic adjustment lever 11.
The inclined guide 8 is provided so as to be slidable within the guide body 8. On the sliding surface 8b of the inclined guide 8,
A pressing piece 9 that moves up and down with the sliding movement of the inclined guide 8 is provided, and the pressing force of the pressing piece 9 is directed approximately in the centripetal direction of the sliding inner cylinder 4, thereby enabling telescopic fixation and release.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for adjusting the telescopic handle (a structure that allows the handle to be adjusted in the front and rear directions). The fixed adjustment of the telescopic steering allows you to securely fix and release the sliding tube. Regarding well-structured structures.

0002

[Conventional technology]

Conventionally, by rotating the lever, the thrust of the threaded part of the shaft is used to create a tapered surface. move the pressing member along the tapered engagement surface of the housing, and The sliding tube of the column is pressed by the driven pressing member that engages with another tapered surface. There is a fixed adjustment structure for the telescopic steering that is fixed (hereinafter referred to as "front"). ).

0003 Moreover, in the steering position adjustment device of Utility Model Publication No. 57-47245, is a waveform formed at a predetermined interval to adjust the steering column in the longitudinal direction. The roller is engaged and disengaged in the concave engagement part by the locking piece and sleeve using spring force. (hereinafter referred to as "the latter").

0004

[Problem that the idea aims to solve]

In the former case, the driven pressing member that presses and fixes the sliding tube of the column and the taper of the housing - The pressing member between the engagement surface is pressed by the thrust of the threaded part of the lever, causing excessive pressure. When the lever is tightened, the edge of the driven pressing member will be against the sliding cylinder surface. If this happens, loosen the screw part of the lever to release it. Even if the driven pressing member remains wedged in the sliding tube, the sliding of the column will be prevented. The barrel remains fixed and the handle can be easily adjusted. It becomes difficult to operate.

[0005] In addition, in the latter case, the front and rear adjustment of the steering column is a gradual adjustment. However, there was a drawback that it could not be adjusted to any desired position.

[0006]

[Means to solve the problem]

Therefore, the inventor decided to place the sliding inner cylinder connected to the steering wheel axially inside the steering column. The lifting bracket is fixed to the steering column and is slidable in both directions. A telescopic guide is attached to the guide body provided on the lifting bracket. The telescopic adjusting screw is provided so that it can only rotate, and the telescopic adjusting screw is provided with an inclined guide. A telescopic adjustment screw with a telescopic adjustment lever fixed to the shaft end. An inclined guide is provided to be slidable within the guide body by rotation of the rod, and the inclined guide A pressing piece that moves up and down by sliding on the inclined guide is provided on the sliding surface of the pressing piece. Telescopic steering in which the pressing force is directed approximately in the centripetal direction of the sliding inner cylinder. Due to the fixed adjustment structure, it is not necessary to tighten the lever to keep the sliding tube in the fixed state. Even if the driven pressing member bites into the sliding tube due to excessive movement, the telescopic When the fixed state is released during adjustment, the driven pressing member is securely removed from the sliding tube. distance, and set the telescopic (handle's front-back adjustable structure) well. It can be adjusted to any desired position, and the above problems have been solved. It is.

[0007]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings.

[0008] Reference numeral 1 is a tilting fixing bracket, and as shown in Fig. 2, it has a flat mounting part 1a and It has an L-shaped cross section with the hanging portion 1b, and the tilting fixing brackets 1, 1 are provided symmetrically at appropriate intervals, and the flat mounting portion 1a is attached to a vehicle, etc. It is fixed to the frame material of the front part of the vehicle. In the hanging portion 1b, as shown in FIG. As shown, a long hole 2 facing substantially vertically is bored.

[0009] Reference numeral 3 is a cylindrical steering column, and there are holes at appropriate locations in the longitudinal direction. As shown in FIG. 2, a lifting bracket 6 is fixed.

0010 The lifting bracket 6 has a U-shaped cross section, and at the upper ends of both side pieces 6a, 6a, It is fixed by welding or the like to support both sides of the steering column 3 in the cross-sectional diameter direction. The lifting bracket 6 is designed so that it will not deform even if an external force is applied to it from both sides. It has strength.

[0011] A sliding inner cylinder 4 is slidably and loosely inserted into the steering column 3, and Equipped with Copic function.

0012 As shown in FIGS. 2 to 4, there is a space between the sliding inner cylinder 4 and the steering column 3. A synthetic resin collar 5 is interposed to ensure good sliding properties. The collar 5 is interposed as necessary.

[0013] One end side of the sliding inner cylinder 4 is exposed from the steering column 3, and the sliding inner cylinder 4 is exposed from the steering column 3. The handle W is fixed to the tip of the steering shaft S which is fixed in the axial direction inside the It is worn.

[0014] As shown in FIGS. 2 and 3, there is a A guide body 7 is provided, and specifically, as shown in FIGS. 5 and 7, a guide body 7 is provided. It has a U-shaped groove.

[0015] The guide body 7 is located in the middle (including approximately the middle) of the both side pieces 6a, 6a. In this way, it is fixed at the supporting side part 7a, and the open side of the guide body 7 is attached to the steering wheel. Facing column 3.

[0016] Corresponding to the position of the guide body 7, as shown in FIGS. 4 and 8, An opening 3a is provided on the outer periphery of the steering column 3, and an opening 5a is provided on the outer periphery of the collar 5. are drilled in the same position.

[0017] As shown in FIGS. 2 to 4, an inclined guide 8 slides inside the guide body 7. It is set up so that it can move freely.

[0018] The inclined guide 8 is formed with an internal threaded portion 8a, the upper surface of which is formed with a sliding surface 8b. is formed, and the sliding surface 8b has an inclined shape. Sliding of the inclined guide 8 A pressing piece 9 is arranged between the surface 8b and the sliding inner cylinder 4.

[0019] As shown in FIG. A pressing surface 9a is formed to appropriately press the outer surface of the sliding inner cylinder 4, and the pressing surface 9a The opposite side (lower surface side) is formed as an inclined surface 9b, and the sliding surface of the inclined guide 8 It is in contact with 8b.

[0020] Both the inclined guide 8 and the pressing piece 9 are housed within the U-shaped portion of the guide body 7. By sliding inside the guide body 7 of the inclined guide 8, the inclined sliding surface 8 b and the inclined surface 9b of the pressing piece 9 slide relative to each other, and the pressing piece 9 is formed as shown in FIG. It is configured to move up and down like this.

[0021] The inner threaded portion 8a of the inclined guide 8 has the threaded portion 1 of the telescopic adjustment threaded rod 10. 0a is screwed together, and its telescopic adjustment screw 10 is tightened to the guide body 7. It is rotatably supported in the mounting direction (clockwise in Figure 1) and in the opposite direction. Ru.

[0022] Specifically, as shown in FIG. 4 etc., the screw of the telescopic adjustment screw rod 10 A disc-shaped flange 10b is formed near the end opposite to the side where the flange 10a is formed. so that the portion 10b comes into contact with the periphery of the support side portion 7a of the guide body 7 at the through hole 7b location. The telescope is rotatably provided on the guide body 7 and is provided inside the supporting side portion 7a. A retaining ring 10c for preventing the pick adjustment screw rod 10 from coming off is provided.

[0023] On the outside of the flange 10b of the telescopic adjustment screw 10, there are As shown, the telescopic adjustment lever 11 is fixed via a nut 12. There is.

[0024] By appropriately rotating the telescopic adjustment screw 10, the The inclined guide 8 of the guide body 7 moves to the left and right as shown in FIG. The pressing piece 9 also moves up and down accordingly.

[0025] Furthermore, in the configuration of the inclined guide 8 and the pressing piece 9, as shown in FIGS. 2 and 4, The slopes of the sliding surface 8b and the inclined surface 9b are both downward to the right. As shown in FIG. Existing.

[0026] Furthermore, as shown in FIGS. 2 to 4, 6 to 8, etc., the pressing surface 9a of the pressing piece 9 A protrusion 9c is formed in the sliding inner cylinder 4, while an elongated through hole 4a is formed in the sliding inner cylinder 4. Then, insert the protrusion 9c into the through hole 4a to prevent the sliding inner cylinder 4 from idling. There are also examples.

[0027] In addition, regarding the tilt adjustment structure, the The bracket 6 is inserted between the opposing tilting fixed brackets 1, 1, and its length is A tilt adjustment screw rod 13 is passed through the holes 2, 2, and one end thereof (the left side in FIG. 9) The screw portion 13a is screwed into the fixed inner screw portion 14. The fixed inner screw portion 14 is actually In the example, it is formed into a nut shape. The head at one end (right side in Figure 9) is It is fixed with a detent 15.

[0028] The fixed inner screw portion 14 at one end of the tilt adjustment screw rod 13 (on the left side in FIG. 2) is provided with a tilt adjustment lever 16, and the rotation operation of the tilt adjustment lever 16 By increasing the clamping force of the lifting bracket 6 of the tilting fixed brackets 1, 1, (clockwise in Figure 1) or loosened (counterclockwise in Figure 1) to fix and release. Exclusion can be done.

[0029] The guide body 7 is located at the position of the tilt adjustment screw rod 13 that passes through the lifting bracket 6. As shown in Figure 3, the tilt adjustment screw rod 13 It is located a little away from the handle W side.

[0030]

[Effect of the idea]

In the present invention, the sliding inner cylinder 4 connected to the handle W is connected to the steering column 3. A lifting bracket is installed inside the steering column 3 so as to be able to slide in the axial direction, and is fixed to the steering column 3. A guide provided on the bracket 6 for lifting and lowering A telescopic adjusting screw 10 is provided on the body 7 so that it can only be rotated, and the telescopic adjusting screw 10 The tilt guide 8 is screwed onto the adjustment screw rod 10, and the telescopic adjustment lever 11 is attached to the shaft end. The inclined guide 8 is guided by the rotation of the telescopic adjustment screw 10 fixed to the The inclined guide is provided to be slidable within the body 8, and the inclined guide is provided on the sliding surface 8b of the inclined guide 8. A pressing piece 9 is provided which moves up and down by sliding of the sliding inner cylinder 4, and the pressing force of the pressing piece 9 is approximately equal to that of the sliding inner cylinder 4. This is due to the fixed adjustment structure of the telescopic steering, which is oriented in the centripetal direction. Therefore, first of all, when adjusting the telescopic, it is necessary to fix the sliding inner cylinder 4. The release is performed reliably, the adjustment is made well, and secondly, any adjustment is possible. play the fruit.

[0031] To explain these effects in detail, the guide provided below the steering column 3 The inclined guide 8 housed in the dome body 7 is screwed into a telescopic adjustment screw rod 10, and the slanted guide 8 is A telescopic adjustment screw rod 10 has a telescopic adjustment lever 11 fixed to its end. Since the tilting guide 8 is provided so as to be slidable by rotation, the tilting guide 8 can be tilted telescopically. By rotating the adjusting screw rod 10 via the telescopic adjusting lever 11, the screw portion can be adjusted. 10a rotates, and the inclined guide 8 screwed thereto moves reliably.

[0032] Therefore, with telescopic adjustments, if you tighten with excessive force, the inclined Since the guide 8 and the pressing piece 9 exert strong pressure, the pressing force on the inclined guide 8 is released. However, the inconvenience that the inclined guide 8 may remain in a pinched state may occur. Although there were many cases, the threaded portion 10a of the telescopic adjustment screw rod 10 , the inclined guide 8 is forcibly removed from the pressing piece 9, so that it cannot be securely fixed. This has the advantage of allowing better telescopic adjustment.

[0033] Next, as described above, the inclined guide 8 is attached to the threaded portion of the telescopic adjustment threaded rod 10. 10a, it is movable by the thrust of the threaded part 10a. The rescopic adjustment lever 11 can be operated with a small amount of force.

[0034] Furthermore, by variously changing the slope at which the inclined guide 8 and the pressing piece 9 contact each other, The tightening force for telescopic adjustment can be changed as appropriate.

[0035] Further, according to the present invention, the sliding inner cylinder 4 can be adjusted back and forth at any position, not in stages. It is possible to adjust the position.

[Brief explanation of drawings]

[Figure 1] Side view of the steering location equipped with the present invention

[Figure 2] Cross-sectional view of main parts of the present invention

[Figure 3] Perspective view of main parts of the present invention

[Figure 4] Enlarged cross-sectional view of main parts in Figure 2

[Figure 5] Exploded perspective view of main components

[Figure 6] An enlarged cross-sectional view of the main parts of the present invention with the telescopic adjustment loosened.

[Figure 7] Longitudinal side view of main parts of the present invention

FIG. 8: Cross-sectional view of another embodiment of the present invention.

[Figure 9] Cross-sectional view of tilt location

[Explanation of symbols]

1 W...handle 2 3...Steering column 3 4……Sliding inner cylinder 4 6... Lifting bracket 5 7...Guide body 6 8... Inclined guide 7 8b...Sliding surface 8 9...Press piece 9 10...Telescopic adjustment screw rod 10 11...Telescopic adjustment lever

Claims (1)

[Scope of utility model registration request] [Claim 1] A sliding inner cylinder connected to a steering wheel is provided in a steering column so as to be slidable in the axial direction, a lifting bracket fixed to the steering column is provided so as to be able to be raised and lowered and fixed as appropriate, and the lifting bracket is provided with a A telescopic adjustment screw rod is provided on the provided guide body so as to be rotatable only, and a tilt guide is screwed onto the telescopic adjustment screw rod, and the tilt guide is adjusted by rotating the telescopic adjustment screw rod, which has a telescopic adjustment lever fixed to the shaft end. A pressing piece is provided so as to be slidable within the guide body, and is moved up and down by the sliding of the inclined guide on the sliding surface of the inclined guide, and the pressing force of the pressing piece is applied in the substantially centripetal direction of the sliding inner cylinder. A fixed adjustment structure for the telescopic steering wheel, which is characterized by its orientation.