JPH06286622A - Column clamp used for automobile steering - Google Patents

Abstract

PURPOSE:To stabilize the absorption quantity of the impact energy caused by the tilt of a steering column in collision by restricting the fluctuation of the draft load of a pin caused by the change in temperature. CONSTITUTION:A clamping body 11 is made of resin with a bearing 13, into which a pin to be mounted on a car body can be inserted, provided on the side of the clamping body 11, and a metallic core 16 with a slot 17 is buried in the bearing 13 in a body with the slot 17 set to the pin coming off port 15 of the bearing 13 together to restrict the fluctuation of the draft load caused by the change in temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column clamp used for steering an automobile.

[0002]

BACKGROUND ART In the steering of an automobile, a steering column for supporting a steering shaft on a vehicle body is attached to the vehicle body via pins with a column tilt bracket on the upper side and a column clamp on the lower side. , The column clamp disengages from the pin, the steering column is pushed forward around the pin on the column tilt bracket, deforming the bending plate to move the steering wheel forward, and the driver Absorbs the impact energy when the vehicle hits the steering wheel to reduce the impact on the driver.

The column clamp is made of resin with a structure in which the pin is fitted in a bearing having a pin opening, and the pin is released from the bearing through the pin opening when the load exceeds a predetermined value. Therefore, the pin withdrawal load fluctuates depending on the temperature, and it is difficult to stabilize the withdrawal load.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a column used in a steering of an automobile in which the fluctuation of the pin pulling load due to the temperature is suppressed to stabilize the amount of impact energy absorbed by the tilt of the steering column during a collision.・ It is in the submission of the clamp.

[0005]

[Means corresponding to the problem and its action]
The clamping body is molded from resin with a bearing on the side that allows the pin to be attached to the car body to be inserted, and a slotted metal core is integrated into the bearing by aligning the slot with the pin exit of the bearing. It is embedded in and suppresses the fluctuation of the pin pull-out load due to the temperature.

[0006]

DESCRIPTION OF SPECIFIC EXAMPLES Specific specified examples of the column clamp used in the steering of the automobile of the present invention will be described below with reference to the drawings. 1 to 3 are
Steering column 2 for supporting a steering wheel 20 and a steering shaft 21 on a vehicle body (not shown) in power steering of a truck
Fig. 10 shows a concrete example 10 of a column clamp used in the steering of an automobile of the present invention as applied to 2. The column clamp 10 has a bearing 13 that allows the pin 27 to be mounted on the vehicle body to be inserted.
The clamping body 11 and its clamping body 11 are provided on one side with respect to the bore 12 with a slotted bearing 14 on the other side with respect to its column bore 12, respectively, into which a pin 27 carrying a bending plate 25 can be inserted. The column bore 1 at the bottom of the body 11
2 and a dust cover 18 which is formed coaxially and integrally with each other, and the clamping body 11 and the dust cover 18 are integrally molded from resin. is there.

The bearing 13 has a pin outlet 15
Then, the clamping body 11 and dust
When the cover 18 is molded from resin, a metal core 16 having a slot 17 is integrally embedded in the bearing 13 by aligning the slot 17 with the pin outlet 15. And the slotted metal core 16
Suppresses and stabilizes the fluctuation of the pull-out load where the pin 27 can be removed from the bearing 13 depending on the temperature. Of course, the slotted metal core 16 is previously cut into a predetermined size from a steel plate having a thickness capable of setting the pull-out load, and then formed into a ring shape, and
used.

The column clamp 10 as manufactured in such a structure has its steering column 22 integrally assembled with a column tilt bracket 23 upwardly, as shown in FIG. 1, and Since the fulcrum pin 26 is attached to the vehicle body through the slit 24 of the column tilt bracket 23 and the pin bore of the vehicle body bracket (not shown), the steering column 22 is mounted below the column tilt bracket 23. Located on the sliding bearing 14 with bolts 2
It is fastened by tightening it with a nut (not shown) through 8 and is attached to the vehicle body through a pin 27 through its bearing 13 and the pin bore of another vehicle body bracket (not shown). Of course, in that way, the column that is fixedly fastened to the steering column 22 and that attaches the steering column 22 to the vehicle body.
The clamp 10 also includes a bending plate 25.
However, as shown in FIG. 1, the pin 27 and the bolt 28 are supported in a contracted state.

In the steering column 22 thus mounted on the vehicle body using the column clamp 10, when the truck causes a collision during traveling and the driver hits the steering wheel 20,
Since the contact acts on the steering column 22 so as to tilt it forward around the fulcrum pin 26, when the contact exceeds a predetermined load, the pin 27 comes out of the bearing 13 of the column clamp 10, The steering column 22 is the bending plate 2
5 is stretched and deformed to be moved forward around the fulcrum pin 26, and at that time, the impact energy is absorbed by the bending plate 25 to relieve the impact on the driver. In addition, in the column clamp 10, the withdrawal load of the pin 27 is stabilized and becomes constant regardless of the temperature change by the slotted metal core 16 embedded in the bearing 13.

As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, those of ordinary skill in the art to which the present invention pertains have the subject matter of the present invention. Is the nature of the invention (na
embodied in other embodiments that are derived from the true) and substance and are objectively recognized as having them internalized. Of course, the contents of the present invention are essential to the establishment of the invention in accordance with the problems of the invention.

[0011]

As will be understood from the above, the column clamp used in the steering of the automobile of the present invention is provided with a bearing on the side of which the clamping body can insert the pin to be mounted on the vehicle body and is made of resin. The column clamp used in the steering of a motor vehicle of the present invention is temperature dependent because it is molded and the slotted metal core is integrally embedded in its bearing with its slot aligned with the pin out of its bearing. The fluctuation of the pin pull-out load is suppressed, and the amount of impact energy absorbed by the tilt of the steering column is stabilized at the time of a collision, and as a result, it is very useful and practical for vehicle steering.

[Brief description of drawings]

FIG. 1 is a partial front view of a power steering of a truck to which a specific example of a column clamp used for steering an automobile of the present invention is applied.

FIG. 2 is a side view showing the column clamp shown in FIG. 1 in a partial cross section.

3 is a top view of the column clamp shown in FIG. 1. FIG.

[Explanation of symbols]

 13 Bearing 15 Pin exit 16 Slotted metal core 17 Slot

Claims (1)

[Claims] 1. A clamping body is molded from resin with a bearing on the side that allows a pin to attach to the heavy body to be inserted, and a slotted metal core aligns the slot with the pin exit of the bearing. A column clamp used for automobile steering that is integrally embedded in the bearing.