JP2550255Y2 - Vehicle turn signal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICATION FIELD The present invention relates to a vehicular turning indicator mounted on an automobile or the like.

2. Description of the Related Art Conventionally, this type of vehicle direction indicating device has been configured as shown in FIGS.

That is, the steering wheel 2 is fixed to the upper end of the steering shaft 1,
A direction indicator main body 3 is attached to a lower portion where the steering wheel 2 is attached by using a guide cylinder 4 provided at the center thereof,
A cylindrical canceling cam 7 having an engagement pin 6 fitted into the coupling hole 5 on the lower surface of the steering wheel 2 at the upper end is rotatably fitted on the outer peripheral portion of the guide cylinder 4,
A turning frame 9 that is turned by a lever 8 is provided on the direction indicator main body 3, and a tip of the turning frame 9 is pressed against a moderation step 10 provided on the direction indicator main body 3 by a spring and pressed. A canceling ratchet 11 having a pin or a ball is provided.

Further, the canceling cam 7 is configured to be urged upward by a spring 12 so as to be securely connected to the steering wheel 2.

The direction indicator body 3 is fixed by a switch mounting plate 13 and covered by a column cover 14.

The operation of the vehicular direction indicating device will be described.
In order to issue a right or left turn instruction for the automobile, the turning frame 9 is turned clockwise or counterclockwise using the lever 8. By this rotation, the rotation frame 9 is locked at the rotation position by the moderation step 10 and the canceling ratchet 11, and a switch (not shown) provided in the direction indicator main body 3 is switched by the rotation frame 9. The direction indicator lamp on the right side or the direction indicator lamp on the left side of the car blinks.

When the steering wheel 2 is rotated leftward or rightward to return to the straight traveling direction after the right turn or the left turn, the cancel cam 7 also rotates with the rotation of the steering wheel 2. By rotating, a part of the canceling ratchet 11 provided on the rotating frame 9 is pressed to return the rotating frame 9 to the neutral position.

In the vehicle direction indicating device configured as described above,
As shown in FIG. 5, the spring 12 for pressing the canceling cam 7 against the steering wheel 2 is provided with an end winding 15 at the beginning and end of winding of the spring.

Problems to be solved by the invention However, in the above-mentioned conventional vehicle direction indicating device,
The spring 12 for pressing the canceling cam 7 against the steering wheel 2 has an end turn 15 at the beginning and end of winding of the spring. Therefore, when the steering wheel 2 is rotated, the canceling cam 7 also rotates at the same time. The rotational force of the canceling cam 7 is transmitted to the spring 12, and the spring 12
As shown in FIG. 6, the end 15a of the end winding portion 15
The terminal 15a is pushed downward and rides on the second volume, rubbing with the winding, and the terminal 15a of the spring that has been run on the second volume
In order to return to the original shape, the spring end 15a jumps up as shown in FIG. 7 and hits the canceling cam 7, and a hitting sound is generated. The sound around 15a was becoming a problem.

The present invention solves such a conventional problem, and does not generate a tapping sound of a terminal 15a of a spring 15 for pressing the canceling cam 7 against the steering wheel 2 even when the steering wheel is rotated. It is an object of the present invention to provide an excellent vehicle direction indicating device.

Means for Solving the Problems In order to solve the above problems, the present invention eliminates the end turns of the spring for pressing the canceling cam against the steering wheel and slightly inwardly turns the tip of the coil spring. is there.

According to the present invention described above, according to the present invention, a general coil spring without an end winding of the canceling cam press-contact spring is used, and since the terminal is bent inward, even if the steering wheel is rotated,
When the end of the spring rides on the second winding of the spring and returns, it eliminates the abnormal noise (hit sound) generated by hitting the canceling ratchet, and the tip of the canceling cam and the spring is rubbed or caught. This is to prevent generation of abnormal noise.

FIG. 1 and FIG. 2 show a vehicle direction indicating device according to an embodiment of the present invention. The same parts as those in the prior art are denoted by the same reference numerals, and the description thereof will be omitted. The spring 16 for pressing the canceling cam 7 against the steering wheel 2 has a feature. Will be described only. Numeral 7 denotes a canceling cam provided with an engaging pin 6 for rotating in cooperation with the steering wheel to neutralize the direction indication, and 16 for pressing the canceling cam 7 against the steering wheel. It is a spring, and the end face 16a is slightly bent inward of the spring 16. Reference numeral 3 denotes a body for mounting a direction indicator, a moderation chevron 10 for operating a direction indicator switch, a spring 16,
It has the same cylinder 4 for holding the canceling cam 7 and a mounting portion 17 for mounting the turn signal body to the vehicle.

Next, the operation of the above embodiment will be described.
Has a structure in which no end turns are provided as shown in the figure.
16a does not overlap with the second turn of the spring 16, so even if the steering wheel rotates and the canceling cam 7 rotates at the same time, if the terminal 16a of the spring 16 overlaps with the second turn of the spring 16, Therefore, the spring terminal 16a does not hit the canceling cam 7 and no abnormal noise (snap noise) is generated.

Further, as shown in FIG. 2, the end 16a of the spring 16 is bent inward instead of straight, so that even if the canceling cam 7 rotates, the end 16a of the spring 16 remains on the canceling cam 7 and the main body 3. It has an effect of eliminating generation of abnormal noise without being caught by burrs or the like.

Effect of the present invention As is clear from the above embodiment, the present invention eliminates the end winding of the spring for pressing the canceling cam against the steering wheel, thereby rotating the steering wheel and rotating the canceling cam. Even if the end of the spring does not ride on the second turn of the spring, the noise that occurs when the spring rides and returns to its original position is eliminated, and the tip of the spring is bent inward to cancel. When the cam rotates, the canceling cam, the main body, and the tip of the spring rub against each other, and do not slide at the tip of the spring.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an essential part of a vehicular turning indicator according to an embodiment of the present invention, FIG. 2 is an enlarged view of a spring of FIG. 1, and FIG. 3 is a cross section of a conventional vehicular turning indicator. FIG. 4 is an exploded perspective view of the essential part, FIG. 5 is a side view of a spring of the essential part, and FIG.
FIG. 7 is an explanatory view of a state in which a conventional spring is incorporated in a canceling cam and abnormal noise is generated by rotation of the canceling cam. 3 ... body, 4 ... guide cylinder, 7 ... canceling cam, 16 ... coil spring.

Claims (1)

(57) [Scope of request for utility model registration] 1. A direction indicator body provided with a rotating frame which is rotated by a lever and held at a switching position by a moderating mechanism is fitted to a steering shaft, and a coil spring is mounted on a guide cylinder of the direction indicator body which fits into the steering shaft. And the canceling cam is fitted therein, the canceling cam is always pushed up by the coil spring and pressed against the steering wheel to maintain the mechanical connection. In the vehicle direction indicating device, the terminal of the coil spring has no end winding and the tip of the terminal Direction indicating device for a vehicle, which is formed by bending inward.