JPH0243773Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to an improved guide device for a light shield for automobiles.

<Prior Art> As is well known, a light shielding body called a sun visor is installed on the front side of an automobile in order to block sunlight from reaching the driver and the like.

Usually, such a light shielding body is movably attached near a window inside a car in order to be able to adjust it to appropriately block sunlight and store it when it is not needed.

Particularly in large vehicles such as buses and trucks, the light shielding bodies installed therein are large in size, so the light shielding bodies are moved up and down using simple and robust guide means, as shown in Figure 3 as an example. A guiding device is provided.

Briefly explaining the guide device shown in FIG. 3, a guide shaft 1 extending in the vertical direction is attached near a window in an automobile (not shown), and a light shielding body 2 is a guide shaft attached to the base end of the guide shaft 1. The guide device 3 is assembled to the guide shaft 1 via the guide shaft 1 so as to be vertically movable, and the guide device 3 has built-in bearings 4a and 4b made of slip rings made of Teflon resin (trade name). , 4b are relatively fitted to the guide shaft 1, the light shielding body 2 is provided to be vertically movable.

Furthermore, the light shielding body 2 is adapted to be moved vertically via a windable cable 5 connected to a guide 3.

In the guide device shown in FIG. 3, the guide shaft 1 and the bearings 4a, 4b of the guide device 3 are relatively fitted, and in this configuration, the light shielding body 2 can freely move up and down.
By winding up or unwinding the cable 5, the light shielding body 2 moves up and down.

〓Problems to be solved by the invention〓 In the case of the above-mentioned conventional example, the structure of the guide device is simple and there is almost no risk of failure; however,
In terms of functionality, there are the following problems.

That is, there is no particular problem when the light shielding body 2 is forcibly raised by winding up the cable 5, but when the light shielding body 2 is forcibly raised by winding up the cable 5, the light shielding body 2 is raised due to its own weight.
When the guide shaft 1 is lowered, a knocking phenomenon occurs due to the minute gap between the guide shaft 1 and the bearings 4a, 4b, uneven load applied to the guide device 3, etc.

This knocking phenomenon occurs when the guide shaft 1 and the bearing 4
a and 4b are properly maintained and the guide device 3 descends, and the weight of the light shield 2 is applied only to one side of the guide device 3, and the outer circumferential surface of the guide shaft 1 and the bearings 4a and 4b are This occurs because the braking state in which the inner circumferential surface of the motor comes in contact with the inner circumferential surface (the state in which it is downward to the left in Fig. 3) is repeated alternately, and this braking state is caused by the unevenness of the load in the descending state, and the descending state is This is caused by the reaction of braking.

When such a knocking phenomenon occurs, smooth operation of the light shielding body 2 is hindered, and sometimes operation becomes impossible.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention aims to provide a guide device for a light shielding body for an automobile, which can prevent the above-mentioned knocking phenomenon.

〓Means for solving the problem〓 In order to achieve the intended purpose of the present invention, a guide shaft extending in the vertical direction is installed near the window inside the automobile, and is movable up and down in correspondence with the window. A guide device having a plurality of bearings built in at vertical intervals is attached to the base end of the disposed light shielding body, and the guide shaft is fitted with these bearings,
In the guide device for a light shielding body for an automobile, which vertically passes through the guide, a pushing arm having a rotary body is pivotally mounted in the guide so as to be vertically movable;
It is characterized in that the rotating body is held in contact with the circumferential surface of the guide shaft via a spring assembled to the push arm.

〓Operation〓 In the case of the device of the present invention, the pushing arm is pivotally mounted within the guide device so as to be able to move up and down, and the rotating body provided on the pushing arm is pressed against the circumferential surface of the guide shaft. When the guide is lowered by its own weight along the guide shaft, the guide shaft and the bearing are prevented from rattling, and therefore the guide does not knock.

〓Example〓 Hereinafter, an example of the device of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, 11 is a large vehicle such as a bus or truck, 12 is a window of the vehicle 11, 21 is a guide shaft, and 22 is a light shielding plate 23 and a support shaft 24.
25 is a light shielding body consisting of two upper and lower bearings 26,
27 is a built-in guide device.

In the above, a vertical guide shaft 21 is connected to a bearing bracket 2 near a window 12 in an automobile 11.
It is attached via 8 and 29.

The base end of the support shaft 24 of the light shielding body 22 is inserted into the guide device 23 and fixed with a screw, so that the guide device 23 is attached to the light shielding body 22.

The light shielding body 22 to which the guide device 23 is attached is assembled to the guide shaft 21 so as to be vertically movable by relatively fitting the bearings 26 and 27 in the guide device 23 to the guide shaft 21 .

A cable 30 that can be wound up and unwound is connected to the guide device 23 via a winding machine (not shown).

The configuration of the device of the present invention described above is basically the same as that shown in FIG. 3 as a conventional example.

In the case of the device of the present invention, the following improvements have been made in this configuration.

That is, a push arm 32 having a rotating body 31 is pivotally mounted within the guide device 23 so as to be movable up and down on a shaft pin 33.

Further, a spring 34 is assembled to the push arm 32, and the spring 34 in the illustrated example is a spring that is in contact with the lower side of the push arm 32, and is screwed into the guide device 23 from outside. The adjustment screw 35 is interconnected and supported.

The spring 34 pushes the pushing arm 32 upward, and moves the rotating body 31 at the tip of the pushing arm toward the guide shaft 21.
It is held in contact with the circumferential surface of.

When the device of the present invention has the above embodiment, the guide device 23 moves up and down by winding up or unwinding the cable 30, and along with this, the light shielding body 22 moves up and down.
moves up and down.

At this time, the push arm 32 that brings the rotating body 31 into contact with the guide shaft 21 and the spring 34 that maintains the contact state cooperate with each other to prevent the knocking phenomenon when the guide device is lowered. .

As the light shielding body 22 in the present invention, a well-known one is appropriately adopted, and as each member of the guide device 23, the guide shaft 21, etc., those made of metal or synthetic resin are used in appropriate places.

In particular, when the guide device 23 is molded by metal molding means or synthetic resin molding means, the guide device 23 is divided into two or the like.

The spring 34 may be coiled; in such a case, the coil spring is fitted onto the shaft pin 33, one end of the coil spring is fixed to the push arm 32,
By fixing the other end of the coil spring to a location other than the push arm 32, a pushing force in a predetermined direction is applied to the push arm 32.

As the rotating body 31, a roller, a ball bearing, etc. are adopted.

<Effects of the invention> As explained above, the present invention provides a guide device for a light shielding body having a predetermined configuration, in which a pushing arm having a rotating body is pivotally mounted within the guiding device so as to be movable up and down. Since the rotating body is held in contact with the circumferential surface of the guide shaft via the spring attached to the arm, smooth function and stable operability can be ensured with simple means.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing an embodiment of the device of the present invention, FIG. 2 is a sectional view of the main part of the device, and FIG. 3 is a schematic diagram of a conventional device. 11...Car, 12...Car window, 21
... Guide shaft, 22 ... Light shield, 23 ... Light shield plate of light shield, 24 ... Support shaft of light shield, 25 ... Guide, 26, 27 ... Bearing, 28, 29 ... Bearing bracket, 31...Rotating body, 32...Press arm, 33
... Push arm shaft pin, 34 ... Spring, 35 ... Spring adjustment screw.

Claims (1)

[Scope of utility model registration request] A guide shaft extending vertically is installed near the window in the automobile, and a plurality of bearings are built in at the base end of a light shield that is vertically movable in correspondence with the window and are spaced apart vertically. In the guide device for a light shielding body for an automobile, a guide device is mounted, and the guide shaft is fitted with these bearings and passes through the guide device in the upper and lower directions, wherein the guide device includes: A light shielding body for an automobile, wherein a pushing arm having a rotating body is pivotally mounted so as to be movable up and down, and the rotating body is held in contact with the circumferential surface of the guide shaft via a spring assembled to the pushing arm. guidance device.