JPS6234856Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved fixing device for a movable steering column.

Conventionally, a movable steering column located at an arbitrary position is configured to be fixed to a vehicle body side bracket by rotating a screw member.

However, in a device in which the screw member is rotated by a knob fixed to the screw member, the operating force is large and the operation is difficult. In addition, in the case of a device configured to be rotated by a lever fixed to a screw member, the operating force is small, but due to the screw pitch, it is necessary to rotate the screw member several times, so There was a problem with space issues due to the presence of instrument panels, etc.

The present invention has been devised in view of the above, and one embodiment will be described in detail below with reference to the accompanying drawings.

In the figure, reference numeral 2 is a steering wheel, 4 is a steering column, 6 is a bracket fixed to the vehicle body 8, and 10 is an arm whose tip welded to the column 4 is pivoted to the bracket 6 by a pin 12. 14 is welded to the column 4 and the tip is screwed 16
This is an arm that is engaged with the long groove 18 of the bracket 6 by. 20 is a screw member having a ratchet 22 screwed onto the screw 16; 24 is the same screw member 2;
0, a first pawl 26 is pivotally supported in the lever and is constantly biased by a spring 28 as biasing means to engage the ratchet 22; A stopper 30 that abuts the first pawl 26 is pivoted within the lever 24 and is constantly biased by a spring 32 as a biasing means so as to engage the ratchet 22.
4 is a stopper that comes into contact with the second pawl 30. 3
Reference numeral 6 denotes a selection operation member rotatably supported within the lever 24 around its longitudinal axis; 38 a knob fixed to one end of the operation member 36; and 40 a selection operation member formed at the other end of the operation member 36. This is a contact portion that abuts the first pawl 26 or the second pawl 30 and moves the pawl 26 or 30 that has come into contact with the ratchet 22 to a non-engaging position. Then, as shown in the figure, the contact portion 40
When the lever 24 is rotated in the direction A with the lever 24 brought into contact with the second pawl 30 and the second pawl 30 is moved to the non-engaging position with respect to the ratchet 22, the first pawl 26 comes into contact with the ratchet 22. At the same time, its back abuts against the stopper 29, so the ratchet 22
can be rotated together with the lever 24, and when the lever 24 is rotated in the direction B, the first pawl 26
The ratchet 22 is not rotated as the ratchet 22 passes over each tooth of the ratchet 2 in turn. Conversely, when the contact portion 40 is brought into contact with the first pawl 26 and the first pawl 26 is moved to the non-engaging position with respect to the ratchet 22, the same action as described above is applied in the B direction. In the A direction, the lever 24 and the ratchet 22 are rotated together, and in the A direction, only the lever 24 is rotated.

According to the above configuration, the arm 14 is connected to the bracket 6
When tightening the screw member 20 to fix the arm 14 relative to the bracket 6, or loosening the screw member 20 to move the arm 14 relative to the bracket 6,
By rotating the knob 38 in accordance with each required rotation direction, the screw member 20 can be rotated in the required direction simply by reciprocating the operating lever 24.

Therefore, the rotational operating force of the screw member 20 can be reduced, and the space required is also small, so that the above-mentioned problems of the conventional device can be solved.

Further, the selection between tightening and loosening of the screw member 20 is performed by disengaging one of the first pawl 26 and the second pawl 30, and the selection operation member 36 is moved along the released pawl, so the operation lever The swinging motion that occurs when the pawl passes over the teeth of the ratchet 22 due to the reciprocating motion of the ratchet 24 does not directly affect the selection operation member 36, and the position selected by the selection operation member 36 is reliably maintained. It has the effect of

[Brief explanation of the drawing]

FIG. 1 is an overall side view showing an embodiment of the present invention;
2 is a sectional view taken along the line - in FIG. 1, and FIG. 3 is a sectional view taken along the line - in FIG. 2. 4: Steering column, 6: Vehicle side bracket, 20: Screw member, 22: Ratchet, 24:
Operation lever, 26: first claw, 30: second claw, 3
6: Selection operation member.

Claims (1)

[Scope of utility model registration request] In a device configured to fix a movable steering column at an arbitrary selected position to a vehicle body side bracket by rotating a screw member, a ratchet fixed to the screw member and a ratchet fixed to the screw member are rotated. a movably mounted operating lever; a first pawl provided on the operating lever and capable of engaging with the ratchet when the screw member is rotated in only one direction by the operating lever; and the first pawl member. Separately, a second pawl is provided on the operating lever and is capable of engaging the ratchet when the screw member is rotated in the other direction by the operating lever; It is characterized by comprising a biasing means for engaging the ratchet, and a selection operation member for releasing either one of the engagements between the claws and the ratchet to select the engagement of the claws with the ratchet. A movable steering column fixing device.