JPS62105772A - Tilt steering wheel device for vehicle - Google Patents

Abstract

PURPOSE:To eliminate relative displacement between a column change rod and a steering shaft by arranging said rod in parallel with said shaft, and improve a feeling in gear change operation by fixing a guide plate coupling pin to the upper rod of said rod. CONSTITUTION:A column change rod 10 is arranged at the side of a steering shaft 1 in parallel therewith so that there will appear no relative displacement between said rod 10 and shaft 1 when a steering wheel is tilted. Furthermore, a pin 22 coupling to the cam face 21 of a guide plate 20 is fixed to the upper rod 12 of the column change rod 10 fixed with a column change lever 11. And an overall system is so constituted that a gear change feeling with the column change lever 11 will be good without any influence by the play of a universal joint 14 connecting upper and lower rods 12 and 13 to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a tilt steering wheel device for a vehicle, and more particularly, it is capable of tilting a steering shaft and a column change rod using their respective universal joints as fulcrums. Regarding the tilt handle device of the attached vehicle.

(Prior Art) In the conventional tilt handle device of the type described above,
For example, as disclosed in Japanese Utility Model Application Publication No. 58-75175, a steering shaft and a column change rod are arranged parallel to each other on the same vertical plane.

(Problem to be Solved by the Invention) When the steering shaft and the column change rod are arranged parallel to each other in the vertical plane, when the tilt handle device is tilted, the steering shaft and the column change rod are Since relative movement is required between the rods, there are problems such as the need to provide an engaging member that engages the column change rod to the steering shaft so as to be movable in the axial direction with respect to the steering shaft. There is.

In addition, in such a tilt handle device, a protrusion +1 that engages with the cam surface of the guide plate for column change is provided on the lower rod, which is located below the universal joint of the column change rod. In terms of things,
Column change is affected by the looseness of the lower part with the protruding member and the part above the universal joint part with the column change lever, that is, the part of the universal joint that connects with the upper opening and the bottom part. Lever change operation feeling is poor.

It is an object of the present invention to prevent relative displacement from occurring between the steering shaft and the column change rod when the tilt handle device is tilted (1) and to provide a good feeling for changing the column change lever on the column change rod. An object of the present invention is to provide a tilt steering wheel device for a vehicle.

(Means for Solving the Problems) The vehicle tilt steering wheel device of the present invention is a vehicle tilt steering wheel device in which a steering shaft and a column change rod are installed side by side so that they can be tilted using their respective universal joints as fulcrums. The steering shaft is rotatably supported in a steering shaft jacket tube that can be rotated integrally with the shaft, and the column change rod is mounted on a side of the steering shaft relative to the steering shaft. The column change rod extends in a substantially parallel state, and its distal end is supported by a bracket fixed to the steering shaft jacket tube so as to be displaceable in the axial direction of the column change rod and in the direction of rotation about the axis. A guide plate for column change is provided on the steering shaft jacket tube above the universal joint of the steering shaft, and a cam surface of the guide plate is provided on the upper rod above the universal joint of the column change rod. ↑! is a sign.

(Function) The tilt steering wheel device for a vehicle according to the present invention is configured as described above in 1-]), and the column change rod is arranged parallel to the side of the steering shaft, and the column change rod is arranged parallel to the side of the steering shaft. No relative displacement occurs between the shaft and the column change rod.

Furthermore, a pin that engages with the cam surface of the guide plate is fixed to the upper rod to which the column change lever is fixed, so that the column change lever can be operated without being affected by play in the universal joint between the lower rod and the upper rod. It is designed to give a good feeling.

(Embodiment) Hereinafter, a tilt handle device for a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1, 2, and 3 are a plan view, a side view, and a perspective view, respectively, of a tilt handle device for a vehicle according to an embodiment of the present invention. Note that, in FIG. 1, a coil spring as a biasing means for the column change rod is omitted.

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 H, and a lower shaft 3 that is connected to a steering gear (not shown). The upper shaft 2 and the lower shaft 3 are connected by a universal joint 4 at a universal joint portion. The lower shaft 3 is rotatably supported by a lower steering column 6 fixed to the vehicle body at its upper end by a support bracket 5 having a substantially U-shaped cross section. On the other hand, the upper shaft 2 is rotatably supported by an upper steering column 7 that can be tilted vertically with respect to the lower steering column 6. This upper steering column 7 is rotatably supported by a rotating shaft 8 disposed on a horizontal straight line Δ that passes through the center of the universal joint 4, that is, the tilt center, and extends perpendicularly to the upper shaft 2.

Although not shown in detail, the rotating shaft 8 is provided with a screw-type locking mechanism, and when this locking mechanism is released, it can be tilted, and when the locking mechanism is activated,
The tilt angle state is maintained. To operate this locking mechanism, use the steering tilt lever 9.
is provided.

A column change rod 10 for performing a gear change operation of an automatic transmission (not shown) is arranged parallel to the right side of the steering shaft 1. The column change rod 10 includes an upper rod 12 connected to a column change lever 11, and a lower rod 13 connected to a selector valve (not shown) of a hydraulic control circuit of an automatic transmission. These upper rods 1
2 and the lower rod 13 are connected to the universal joint 1 at the universal joint portion whose center is located on the horizontal straight line A.
Connected by 4. Therefore, the upper shaft 2 of the steering shaft 1 and the upper rod 12 of the column change rod 10 are always located in the same plane rotating about the horizontal straight line A as the center of rotation during tilting, and thus there is a space between them during tilting. No forces are created that cause relative motion.

At the lower right end of the support bracket 5, a flange 15 extending outward from the side is formed integrally with the bracket 5. This flange 15 has a column change rod 10
The lower rod 13 is inserted into the insertion hole 16, and the lower rod 13 is supported by the flange 15 so that it can rotate but not move in the axial direction. There is.

The upper rod 12 includes a base 17 and a tubular movable member 19 connected by a spline 18 so as to be movable only in the axial direction relative to the base 17. The change lever 11 is fixed to this tubular movable member 19. The shaft 24 of the movable member 19 is supported by a bracket 23 fixed to the upper column 7 so as to be movable in the axial direction and in the direction of rotation about the shaft.

A column change guide plate 20 for an automatic transmission is fixed to the upper column 7, and this guide plate 20 has a cam for positioning the column change rod 10 at an angular position corresponding to each shift position. It has a surface 21. A pin 22 is fixed to the movable member 19, which contacts and engages a suitable portion of the cam surface 21 to position the column change rod 10 at an angular position corresponding to a predetermined shift position. Hereinafter, regarding this guide plate 20 and bottle 22, Section 4.5 will be explained.
This will be explained using figures.

FIG. 4 shows a guide plate 20, in which the column change rod 10 is attached to lunge, 2 range, D range, N range, R range, P range.
Cam surface 2 for positioning at an angular position corresponding to the range
1 is formed. Then, a pin 22 fixed to the movable member 19 is attached to an appropriate portion of the cam surface 21, i.e.
The column change rod 10 is positioned at an angular position corresponding to a predetermined shift position by contacting and engaging one portion of each of the two range positions. In addition, FIG. 5 shows each range position of the column change lever 11 of the column chain lever 10, namely lunge, 2 range, and D.
Range, Nl/flange range, and P range are shown, and in the figure, BIC indicates the center of rotation of the steering shaft 10 and the center of rotation of the column chain shaft 10, respectively.

Next, the column change rod 10 is biased toward an appropriate angular position by spring means. Hereinafter, this spring means will be explained using FIG. 3. Two coil springs 25.2 that act in opposite directions to provide a drag force against the direction of rotation of the column change rod 10.
In other words, the coil spring 25 has one end fixed to the upper rod 12 and the other end fixed to the mounting portion 20a of the guide plate 20, and the coil spring 26 has one end fixed to the lower rod 12. The other end is fixed to the flange 15.

Therefore, the coil springs 25 and 26 center the ram change rod 10 by applying a drag force in its rotational direction, thereby preventing the change lever 11 from swinging and improving the shift feeling of the change lever 11. - Effects of the Invention As explained above, 1. In the vehicle tilt steering wheel device of the present invention, the force that causes relative displacement between the steering shaft and the column change rod when the tilt steering wheel device is tilted. does not occur, and furthermore,
The change operation feeling of the column change lever can be improved in the column change rod.

[Brief explanation of drawings]

1, 2, and 3 are a plan view, a side view, and a perspective view, respectively, showing the main parts of a vehicle tilt handle device according to an embodiment of the present invention, and FIG. 4 is a configuration of a guide plate. The explanatory diagram, FIG. 5, is a diagram showing each range position of the column change lever of the column change rod. 1... Steering shaft, 2...
Upper shaft, 3...Lower shaft, 4...
...Universal joint, 5...Support bracket 1゛, 6...Lower steering column, 7...
・Abpa steering column, 10...Column change rod, 12...Upper rod, 13
...Lower rod, 14...Universal joint, 15...Flange, 16...
...Insertion hole, 20...Guide plate, 21
...Cam surface, 22...Pin, 25.2
6...Coil spring, A...Horizontal straight line. Figure 4

Claims (1)

[Scope of Claims] A tilt handle device for a vehicle in which a steering shaft and a column change rod are provided side by side so that the steering shaft and the column change rod can be tilted using their respective universal joints as fulcrums, wherein the steering shaft is tiltable integrally with the shaft. The column change rod is rotatably supported within the steering shaft jacket tube, and the column change rod extends to the side of the steering shaft in a state substantially parallel to the steering shaft. The steering shaft jacket tube is supported by a bracket fixed to the steering shaft jacket tube so as to be movable in the axial direction of the column change rod and in the direction of rotation around the axis, and the steering shaft jacket tube is located above the universal joint of the steering shaft. The vehicle is characterized in that a guide plate for column change is provided, and an upper rod above the universal joint portion of the column change rod is provided with a protrusion member that engages with a cam surface of the guide plate. tilt handle device.