JPS61108057A - Steering handle position adjusting device for car - Google Patents

Abstract

PURPOSE:To facilitate the motorization of a steering handle position adjusting device by unlocking the locks of a tilt and a telesco. (telescopically adjustable steering column) through the stroke of an actuating lever in the same direction. CONSTITUTION:When an actuating lever 41 is turned up to the B position, a nut 39 is loosened and an upper column 7 can be tilted in the upward and downward direction. Then, when the actuating lever 41 is turned further and located in the C position, an operating member 40 turns locking pawls 33 and 34 to the unlocking direction against a spring. As a result, the telescopic operation in the forward and backward is enabled. In this case, a tilt is locked by a locking device consisting of a hooking pin 54 and a click groove plate 52.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a steering link handle position adjustment device for an automobile.

(Prior technology) In order to make it easier to operate the steering wheel of an automobile according to the driver's physique, etc., a steering wheel position adjustment system that allows the vertical position (tilt position) and longitudinal position (telescopic position) of the steering wheel to be adjusted respectively. 'J,'
1 device is known, for example, Utility Model Application No. 58-190257.
It is stated in the No. However, in the position adjustment device described in this utility model publication, the operating directions of the tilt lock-off and telescopic lock-off by the operating members are different from each other. The problem is that the configuration becomes quite complicated.

(Objective of the Invention) Therefore, an object of the present invention is to provide a position adjustment device for a steering wheel of an automobile, which facilitates the electrification of an automobile.

(Structure of the Invention) The present invention includes a first position adjustment mechanism that adjusts the vertical position of a steering wheel, and a second position adjustment mechanism that adjusts the front and back position of the steering handle. A position adjustment device, the first locking means for the first position adjustment mechanism, the second locking means for the first position adjustment mechanism;
a second locking means for the position adjustment mechanism, the first and second locking means being activated in the reference position;
an operating lever that releases either one of the first and second locking means at a stroke position and releases the other locking means at a second stroke position extending from the first stroke position; One position adjustment mechanism that is unlocked at the one stroke position is moved to the second position adjustment mechanism.
It is characterized by comprising a holding means for holding the stroke position. In addition, it is preferable that the holding member is a locking means that relocks the one position adjustment mechanism in response to movement of the operating lever to the second stroke position.

(Effects of the Invention) In the automobile steering handle position adjustment device of the present invention having the above-described structure, the tilt and telescopic locks can be released by stroking the operating lever in the same direction, making it easy to electrify the device.

(Example) Hereinafter, a steering wheel position adjustment device for an automobile according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2 are a side view and a plan view, respectively, of a steering link handle position adjustment device according to an embodiment of the present invention.

In these figures, reference numeral 1 indicates a steering shaft, and this steering shaft 1 consists of an upper shaft 2 that supports a steering handle (not shown), and a lower shaft 3 that is connected to a steering gear (not shown). , these upper shaft 2 and lower shaft 3 are connected by a universal joint 4. The lower shaft 3 has a U-shaped fixing bracket 5.
The upper end thereof is rotatably supported by a lower steering column 6 fixed to the vehicle body. On the other hand, the upper shaft 3 is rotatably supported with respect to the lower steering column 6 by an upper steering column 7 capable of tilting in the vertical direction and telescopically moving in the longitudinal direction.

At the upper end of the fixed bracket 5, two support plates 8 are integrally provided with the bracket 5.
The support plates 8 extend from the bracket 5 on both sides of the universal joint 4 to a position slightly beyond the joint 4. On the outer surfaces of these two support plates 8, seven lock bolts 9 are arranged on a straight line passing through the center of the universal joint 4, respectively.

At the lower end of the upper steering column 7, there is a tilt switch that acts to tilt the column 7 up and down and to telescope it up and down with respect to the lower steering column 6.
A telescopic mechanism 10 is provided. This mechanism 10 is
A first bracket 11 is provided at the lower end of the upper column 7 and extends symmetrically in the left and right directions across the central axis of the steering shaft 1, and a first bracket 11 extends downward from the left and right ends of the first bracket 11 and extends on both sides of the steering shaft 1. In addition, two second flakes 12 are provided symmetrically with respect to the shaft 1.

A long hole 14 extending in the axial direction of the shaft 1 is formed in the second bracket 12, and the lock bolt 9 is fitted into the long hole 14. This second bracket 12 is therefore movable along the shaft 1. A tilt plate 15 is arranged between the second bracket 12 and the support plate 8. This plate 15 is formed with an opening (not shown) having a diameter slightly larger than the lock bolt 9, and the lock bolt 9 is fitted into this opening. Therefore, this plate 15 can swing around the lock bolt 9. The plate 15 is provided with a guide member 16 consisting of two plate-like members rising from the surface of the plate, and the second bracket 12 is guided by the guide members 16 and 16 as described above. It is designed to move in the axial direction.

The upper shaft 2 of the steering wheel aft 1 is comprised of first and second shaft portions 2a, 2b which are splined together as shown in FIG. Therefore, this upper shaft 2 can be extended and contracted, that is, telescopically operated, by the pairwise movement of the first and 'PJ2 shaft portions 2a, 2b.

The support plate 8 has two locking pawls 33 and 34 that engage with ratchet teeth L2a formed on both sides of the second bracket 12 to lock the sliding movement in the front and back direction. It is pivoted by.

The two lock pawls 33 and 34 are biased by springs 37 and 38, respectively, in the direction of engagement with the ratchet teeth 12a. Therefore, the second bracket 12
In the normal state, the lock claws 33 and 34 are
It is locked so that it cannot slide forward or backward.

A lock nut 39 is screwed into the lock bolt 9, and by tightening this nut 39, the vertical tilt of the upper column 7 with respect to the lower column 6 is locked. A lock pawl operating member 40 is fixed to this nut 39, and this part (O. The lock claw 33.34
It has the effect of rotating in the release direction.

An operating lever 41 is fixed to the lock nut 39, and when in the A position, the operating lever 41 tightens the nut 39 to lock the vertical tilt of the upper column 7 relative to the lower column. At this time, the masterpiece member 40 does not act on the equivalent locking claws 33 and 34,
Therefore, the longitudinal telescope of the upper column 7 is also locked.

On the other hand, as shown in FIG.
When the upper column 7 is rotated to this position, the nut 39 is loosened, the lock is released, and the upper column 7 can be tilted in the vertical direction. Note that, at this time, the operating member 40 is not yet engaged with the lock claws 33, 34, so that the telescopic operation in the front and back direction is still locked. Thereafter, as shown in FIG. 4, when the operating lever 41 is further rotated and positioned at the C position, the operating member 40 locks the lock claws 33, 34 with the spring 37.
38 in the unlocking direction. As a result, telescopic operation of the upper column 7 relative to the lower column 6 in the longitudinal direction becomes possible.

In this way, when the operating lever 41 is rotated to the C position, the upper column 7 can be telescopically operated in the front-rear direction, but as it is, a tilting operation is also possible. Therefore, in this embodiment, in one of the lock nuts 39,
A locking device 50 (11η) for tilting the upper column 7 is provided. It has a click groove plate 52 in which a click groove 51 is formed on the locus of the lower end of the plate 15, and this click groove plate 52 is fixed to the lower column 6.

On the other hand, an elongated hole 53 extending in the axial direction of the shirt l is formed at the lower end of the tilting plate 15, and a locking pin 54 is slidably fitted into the elongated hole 53. .

When this locking pin 54 is located at the lowest position of the elongated hole 53, it engages with the click groove 51, thereby suppressing rotation of the tilt plate 15 and locking the tilt mechanism. be. This locking pin 54 is attached to a connecting rod 55 whose one end is pivotally connected to the lever 41 so that the locking pin 54 engages with the click groove 51 when the operating lever 41 is located at the C position. It is attached to the other end. With the above configuration, when the telescopic mechanism is unlocked, the tilt mechanism is locked to automatic fishing. Note that the locking pin 54 and the connecting rod 55 may be formed as a pair by bending a single rod.

In addition to the embodiments described above, the present invention can also be applied to an arrangement in which vertical and longitudinal position adjustment is performed using, for example, an electric motor. In this case, the operating lever may also be configured to be operated, for example, by an electric motor, similar to the adjustment of the vertical and longitudinal positions.

[Brief explanation of the drawing]

FIG. 1 is a side view of a steering wheel position adjustment device for an automobile according to an embodiment of the present invention, FIG. 2 is a plan view of the device shown in FIG. 1, and FIG. 3 is a tilt lock released. Diagrams showing states: FIG. 4 is a diagram showing a state in which the telescopic lock is released. ■・・・Steering shaft, 2・・・・・・
Upper shaft, 3...Loan shaft, 4...
... Universal joint, 6 ... Lower steering column, 7 ... Upper steering column, 9 ... Lock bolt, 10 ...
...Tilt telescopic mechanism, 33.34...Lock claw, 39-=...Lock nut, 41...Operation lever, 5o...Lock device.

Claims (2)

[Claims] (1) The first step to adjust the vertical position of the steering wheel.
A steering wheel position adjustment device for an automobile, comprising a position adjustment mechanism and a second position adjustment mechanism for adjusting the longitudinal position of the steering wheel, the device comprising: a first locking means for the first position adjustment mechanism; a second locking means for a two-position adjustment mechanism, the first and second locking means are activated at the reference position, one of the first and second locking means is released at the first stroke position; an operating lever that releases the other locking means at a second stroke position that is an extension of the first stroke position, and a position adjustment mechanism that releases the other locking mechanism at the first stroke position of the operating lever, and moves the one position adjustment mechanism that is unlocked at the first stroke position of the operating lever to the second stroke position. An automobile steering wheel position adjustment device equipped with a holding means for holding the steering wheel. (2) The holding member is a locking means for relocking the one position adjustment mechanism in response to movement of the operating lever to the second stroke position.
1) The steering handle position adjustment device for an automobile as described in item 1).