JPH0231342Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a tilt handle device for a vehicle.

As is well known, a tilt steering wheel device for a vehicle is a device that allows the driver to set the steering wheel to a desired position.The present invention makes it possible to maintain the set position reliably, thereby providing a safe steering wheel. This was proposed for the purpose of providing a tilt steering wheel device for a vehicle that can be operated, and a steering wheel side shaft 1 and a steering gear box side shaft 2 are connected via a universal joint 3, and the steering wheel side shaft 1 is connected to a steering gear box side shaft 2 via a universal joint 3. The column support 4 supported by the gearbox side shaft 2 via a bearing and the column support 5 supported by the gearbox side shaft 2 via a bearing are rotatably connected by a support bolt 19, and the column support 4 is provided on the column support 4 side. a swing-side support 9 having teeth 9a and holes 9b that are swingably supported on the column support 5 side and mesh with the teeth 8a on the column support 4 side;
and a first biasing means 20 that urges the swing-side support 9 in a direction that causes the teeth 9a of the swing-side support 9 to mesh with the teeth 8a on the column support 4 side; inserted and column support 5
The cam 15 includes an operating lever shaft 10 fixed to a cam 15 pivotally mounted on the side, and a second biasing means 11 for rotationally biasing the cam 15. The cam 15 resists the second biasing means. When the operating lever shaft 10 is rotated, one side of the hole 9b is pressed and the swing side support 9 is displaced to release the engagement between the teeth 9a and 8a, and in the released state, the first biasing means The first cam ridge 15b is formed to restrict the rotation of the cam 15 due to the urging force of the second urging means 11 by the frictional force generated between the first cam ridge 15b and the one side due to the urging force of the second urging means 11, and the tooth 9a. The second biasing means 1 maintains the meshing state in which the teeth 8a mesh with the teeth 8a.
a second cam ridge 15a formed so as to press the swinging side support 9 by abutting on the other side opposite to the one side of the hole 9b by the urging force of the second cam ridge 15a for a vehicle. This relates to a tilt handle device.

Hereinafter, according to the embodiments shown in FIGS. 1 to 4,
The present invention will be explained in detail. 1 in those figures
2 is a steering gear box side shaft connected to a steering gear box (not shown), and the shaft 2 and the handle shaft 1 are connected by a universal joint 3. are connected via
By operating a handle (not shown), power is transmitted to a steering gear box through a path of shaft 1, universal joint 3, and shaft 2, and the vehicle is steered. 4 is a column support supported by the above-mentioned handle-side shaft 1 via a bearing, and 5 is a column support supported by the above-mentioned gearbox-side shaft 2 via a bearing. As shown in FIG. 3, the members 4a and 5a fixed as shown in FIG.
The column supports 4 are pivoted so that they can rotate relative to each other, and the column supports 4 can be freely rotated to any of the positions a, b, c, d, and e in Figure 1. Users can select their preferred position. In this case, the above universal joint 3
serves to smooth the rotational movement of the column support 4. 6 is a bracket fixed to the member 5a fixed to the column support 5, as shown in FIG. 4; 8 is a stationary support fixed to the member 4a fixed to the column support 4; 9 is the column support. As shown in FIG. 1, the swing-side support is swingably supported by the bracket 6 attached to the member 5a fixed to the member 5 through a support pin 7, and both supports 8 and 9 are Teeth 8a, 9a are provided which mesh with each other. 10
is an operating lever shaft whose tip end is rotatably attached to the bracket 6, as shown in FIG.
The shaft 10 is prevented from being displaced in the axial direction by a snap pin 17. Reference numeral 15 denotes a cam fixed in place near the tip of the operating lever shaft 10, and the cam 15 has two cam ridges 15a, 15.
b, and a first
As shown in the figure, the cam ridge 15 is placed in the trapezoidal hole 9b.
It is fitted so that a and 15b are inscribed.
As shown in FIGS. 1 and 2, the trapezoidal hole 9b and the cam 15 have a trapezoidal shape and a triangular shape, respectively, and form male and female cams that engage with each other. 11 is a return spring that always urges the cam 15 to rotate clockwise; one end of the spring 11 is connected to the cam 1;
The other end is attached to a fixed shaft 13 fixed to the swing side support 9 at the portion between the cam ridges 15a and 15b of the cam 15, and the cam ridge 15a of the cam 15 is rotated by the action of the return spring 11. Swing side support 9
The support 9 is rotated clockwise about the support pin 7 so that its teeth 9a mesh with the teeth 8a of the stationary support 8. (See Figure 1) Reference numeral 20 denotes a tension spring with one end hung on the fixed shaft and the other end hung on the pin 16 attached to the fixed support 8. The tension spring 20 is also attached to the swing support 9. This serves to ensure that the teeth 8a, 9a of the stationary support 8 maintain a meshing state. Then, with the return spring 11 and the tension spring 20, the fixed side support 8
The teeth 8a of the swing-side support 9 and the teeth 9a of the swing-side support 9 form a biasing means for ensuring the meshing state of the teeth 9a. In addition, in the figure, 12 is a knob attached to the operating lever shaft 10, 14 is an instrument panel fixing pin 18 is a fulcrum bush of a fulcrum bolt 19, 21 is a handle return spring,
22 represents a snap pin.

One embodiment of the device of the present invention is constructed as described above, and when the driver sets the steering wheel (not shown) to his/her preferred position, the driver can:
Rotate the knob 12 of the operating lever shaft counterclockwise from the position shown by the solid line in FIG. 1 to the position shown by the two-dot chain line, that is, the position shown by the solid line in FIG. 2. Then, the cam 15 fixed to the tip of the operating lever shaft 10 rotates counterclockwise against the return spring 11 and the tension spring 20, and the cam 15
The cam ridge 15b is the trapezoidal hole 9b of the swinging side support 9.
are pressed together as shown in FIG. Therefore, the swinging side support 9 rotates counterclockwise around the support pin 7, and the teeth 9a of the swinging side support 9 rotate.
are separated from the teeth 8a of the stationary support 8 and their meshing relationship is released, so that the handle-side shaft 1 can freely rotate around the fulcrum bolt 19. Therefore, the driver selects one of the positions a to e according to his preference, and then returns the operating lever shaft 10 to its original position, and the teeth 9a, 9a of both supports 8, 9 mesh again. , cam 1
It is crimped by the cam ridge 15a of No.5. In this case, the return spring 11 and the tension spring 20 have both teeth 8a and 9.
Helps ensure crimping of a.

In addition, in the above operation, when the swing side support 9 is in the release position as shown in FIG. 2, the cam ridge 15b comes into pressure contact with the side of the trapezoidal hole 9b facing the tension spring 20, and the frictional force generated at the pressure contact part By cam 15
The rotation of the swing side support 9 is restricted, and the swing side support 9 is held at the released position.

Since the device of the present invention has the above-described structure and function, the combination of the trapezoidal cam hole, the triangular cam, and the two types of springs allows the driver to move the hand from the operating lever knob. Since the steering wheel remains adjustable even when the driver is released, the driver can select the steering wheel angle that suits his or her driving position while seated correctly in the seat, allowing the driver to accurately set the desired steering wheel angle. . In addition, according to the present invention, with a simple configuration, it is possible to perform functions such as reliably maintaining the engaged state, quickly transitioning from the engaged state to the disengaged state, and maintaining the disengaged state, and further reduce costs and reduce the size of the device. It has the following effects.

[Brief explanation of the drawing]

The attached drawings are schematic illustrations of one embodiment of the present invention.
Fig. 1 is a side view in a normal fixed state, Fig. 2 is a side view when the teeth of the swinging side support and fixed side support are disengaged, Fig. 3 is a cross-sectional view taken along the - line in Fig. 1, FIG. 4 is a sectional view taken along the line -- in FIG. 1. 1: Handle side shaft, 2: Steering gear box side shaft, 3: Universal joint, 4, 5:
Column support, 6: Column support bracket, 7: Support pin, 8: Fixed side support,
9: Swing side support, 8a, 9a: Teeth, 10: Operation lever shaft, 11: Return spring, 12: Operation lever knob, 13: Fixed shaft, 14: Instrument panel fixing pin, 15: Cam, 15a, 15b: Cam ridge ,1
6: pin, 17: snap pin, 18: fulcrum bush, 19: fulcrum bolt, 20: tension spring, 2
1: Handle return spring, 22: Snap pin.

Claims (1)

[Scope of utility model registration request] A handle-side shaft 1 and a steering gear box-side shaft 2 are connected via a universal joint 3, and a column support 4 is supported by the handle-side shaft 1 via a bearing and supported by the gearbox-side shaft 2 via a bearing. column support 5
are rotatably connected by a support bolt 19, and teeth 8 provided on the column support 4 side.
a, a swing-side support 9 that is swingably supported on the column support 5 side and has teeth 9a and holes 9b that mesh with the teeth 8a on the column support 4 side, and teeth 8a on the column support 4 side. a first urging means 20 that urges the swinging side support 9 in a direction to engage the teeth 9a of the swinging side support 9;
an operating lever shaft 10 fixed to a cam 15 which is inserted into the hole 9b and pivoted to the column support 5 side; and a second urging means 11 which rotationally urges the cam 15; When the operation lever shaft 10 is rotated against the second biasing means, one side of the hole 9b is pressed, the swing side support 9 is displaced, and the engagement between the teeth 9a and 8a is released. In the released state, the first biasing means 20
The first cam ridge 15 is formed so as to restrict the rotation of the cam 15 due to the urging force of the second urging means 11 by the frictional force generated between the first cam ridge 15 and the one side due to the urging force of the first cam ridge 15.
b, and the swing side support is brought into contact with the other side opposite to the one side of the hole 9b by the urging force of the second urging means 11 so as to maintain the above-mentioned meshing state with the tooth 9a meshing with the tooth 8a. 9. A tilt handle device for a vehicle, characterized in that it has a second cam ridge 15a formed to press 9.