JPS5950548B2 - Steering holding device when turning a car backwards - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a holding device that prevents a steering mechanism from returning suddenly when an automobile turns backwards.

In general, in vehicles with a large trail (i), if you let go of the steering wheel when turning backwards, the restoring force is large and the steering mechanism returns suddenly, causing an excessive impact force to act on the gearbox etc., which has a negative impact. It had the disadvantage of being slow.

This tendency also appeared in the steering operation, which was undesirable.

The present invention is intended to solve this problem, and when the shift lever is moved to the reverse position, the operating arm linked to the shift lever comes into friction pressure contact with the steering interlocking member, such as the pinion rod or the torque rod, thereby preventing sudden steering movement. It is designed to prevent a sudden return.

Next, details of the present invention will be explained with reference to embodiments shown in the drawings.

In this steering system, a steering shirt l-2 extends below the front of the steering wheel 1, and the shaft system is reversed at the front gear box 3, passing through the torque rod 4 and pinion rod 5 to the rear gear box 6. ing.

Tie rods 7 orthogonal to each other in the rear gear box 6 are configured to interlock with each other.

On the other hand, the shift lever 8 is supported at an operation fulcrum 9, and a shift rod 0 is attached to a connecting portion 8a on the lever 8 to the shift 1.

Furthermore, in the present invention, the connecting portion 8b is provided at an appropriate distance 1 from the operation fulcrum portion 9 of the shifter 1 to the lever 8,
One end portion 11a of the operating arm 11 is rotatably attached here.

The operating arm 11 extends through the support fitting 12,
Lining 1 stretched over the other end 11b of the operating arm 11
3 is placed at a position where it comes into contact with the pinion rod 5.

Now, when the shifter 1 is gripped with the grip 8C of the lever 8 and shifted from the operation fulcrum 9, the shift rod 10 is interlocked via the connecting portion 8a, and the gear shift operation of the transmission (not shown) is performed. It will be done.

In this embodiment, the gear shifting operation is performed according to the shift pattern shown in the grip portion 8C of the shift lever 8 in FIG.

Then move the shift lever 8 to the reverse position (shift pattern R
), the shift lever 8 is tilted toward the steering shaft 2 and is at position 8', and the operating arm 11 is moved in the direction B via the connecting portion 8b, and is stretched over the other end 11b. A certain lining 13 is adapted to come into pressure contact with the pinion rod 5.

When the lining 13 comes into pressure contact with the pinion rod 5, a frictional force is applied to the pressed surface, and this frictional force acts during the rotation operation of the steering mechanism.

That is, even if a restoring force acts on the steering mechanism during a backward turn and the steering mechanism tries to return suddenly, the rotational operation is restrained by the frictional force, and no excessive impact force is applied to the gear boxes 3, 6, etc.

Additionally, the frictional force that is applied makes it harder to turn the steering wheel during reverse operation, but this does not interfere with operation.

In this embodiment, the lining 13 is in pressure contact with the pinion rod 5, but the lining 13 may be in pressure contact with the torque rod 4.
3 may be configured to be in direct pressure contact with the rotating steering shaft 2.

In the above, the shift pattern of the grip portion 8C shown in FIG. The lining 13, which is stretched at the end, can be configured to press against the pinion rod 5 or the torque rod 4.

As described above, the present invention is configured so that when the shift lever is operated backwards, the operating arm linked to the shift lever is moved and its end is frictionally welded to the steering mechanism. This can be easily implemented by modifying the scale, and has the effect of preventing the steering from returning suddenly when the vehicle turns backwards.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is an overall perspective view;
FIG. 2 is a plan view thereof, and FIG. 3 is a side view as seen from the direction A in FIG. 1... Steering wheel, 2...
Steering shaft, 3...Front gear box, 4...Torque rod, 5...Pinion rod, 6...Rear gear box, 7...
...Tie rod, 8, 8'...Shift lever 18a, 8b...Connection part, 8C...
Grip part, 9... Operation fulcrum part, 10...
Shift rod, 11... Operating arm, lla.
...One end, 11b...Other end, 12.
...Supporting metal fittings, 13...Lining, ■
...Distance, B...Movement direction, R...
...Retreat position.

Claims (1)

[Scope of Claims] 1. A steering holding device for when an automobile turns backwards, characterized in that, when the shift lever is operated to the backward position, an operating arm linked to the shift L-lever is brought into friction pressure contact with a steering interlocking member. 2. A patent claim in which one end of the operating arm is pivotally supported on a shift lever separated from the operating fulcrum of the shift lever, and the other end of the operating arm is formed so as to be in pressure contact with a pinion rod or torque rod connected to a steering shaft. A steering holding device for a vehicle during a backward turn according to Scope 1.