JPS5851651Y2 - Cap rotation control device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rotation regulating device for the cap of a lever reservoir tank, and more specifically, a latch device is provided on the cap of a brake master cylinder glue reservoir tank of a motorcycle, etc.
The present invention relates to a cap rotation restriction device that locks the cap in a non-rotatable manner and allows the cap to be removed extremely easily using a cap removal tool.

The cap of the brake master cylinder glue reservoir tank on motorcycles, etc. is screwed on and can be attached and detached very easily.Furthermore, since it is installed in the most visible place on the vehicle, someone else can easily remove the cap. If the cap is removed, there is a risk of brake fluid leaking or foreign matter getting mixed in. The cap may also come off naturally due to the vibration of the car body while driving, making it impossible to exert sufficient braking effect when braking. Serious consequences may result.

The purpose of this invention is to prevent the cap from loosening easily, to prevent it from coming off even if someone else tries to remove it, and to make it extremely easy to remove the cap using a jig when it is necessary to remove the cap. A device with a cap removably screwed onto the main body of the reservoir tank is equipped with serrated protruding teeth on the outer peripheral wall of the main body below the threaded part to restrict the rotation of the cap in the removal direction. a locking device for the cap, which is located outside the outer periphery of the threaded portion, and extends from at least one location of the cap so that a latch portion that engages with the protruding teeth can be elastically deformed outward; and a ring portion. It is removably attached to the cap, and rotates along the removal rotational direction of the cap in correspondence with each latch part of the cap, protrudes to be inserted between the latch part and the protruding teeth, and further rotates to insert the protruding teeth. To provide a rotation regulating device for a cap of a reservoir tank, which includes a push-in pawl whose inner surface is formed as an inclined surface so as to be able to go over the cap, and a cap removal tool extending to a ring part.

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIG.
It is connected and fixed to the upper part of 2.

Reference numeral 14 denotes a cap, which is removably screwed on with a screw 18 via an inner lid 16 that covers the mouth edge of the main body 10.

20 is a serrated protruding tooth, which is attached to the cap 1 on the outer peripheral wall of the main body.
4 at a position directly below the lower end.

The protruding teeth 20 are arranged so as to each have a slope 22 that gradually protrudes in the direction in which the cap 14 is screwed on.

A latch portion 24 extends downward from the lower edge of the cap 14 and engages with the protruding teeth 20 of the main body 10.

Since this latch part 24 is elastic, when the cap 14 is rotated in the direction of screwing it onto the main body 10, it is pushed outward along the slope 22 of the protruding tooth 24, and when it comes to the recess 26, it makes a clicking sound. Go back.

As the cap 14 rotates in this way, the latch portion 2
4 climbs over the protruding teeth 20, and when the cap 14 is reversed in the removal direction, the latch portion 24 comes into contact with the vertical surface 28 of the protruding teeth 20 and prevents the reversal.

In FIG. 2, it is possible to rotate the cap 14 clockwise, but rotation in the counterclockwise direction is prevented.

Reference numeral 30 shown in FIG. 3 is a cap removal tool, which is composed of a ring 32 that is attached to the cap 14 and a push-in claw 34.

The push-in pawl 34 is inserted into the recess 2 between the protruding teeth 20 of the main body 10 when the ring 32 is mounted on the cap 14.
It is provided at the tip of a 1-shaped portion 38 that extends downward from the lower end edge of the ring 32 and is bent and extended inward so as to be located in the gap 36 between the ring 32 and the latch portion 24 .

The push-in claw 34 faces in the direction in which the cap 14 is removed, and the inner surface of the push-in claw 34 is formed with an inclined surface 34a that is inclined in a direction opposite to the direction of inclination of the inclined surface of the protruding tooth 20. When rotated in this direction, the push-in pawl 34 is configured to overcome the protruding teeth 20.

Then, by rotating the ring 3'2, the pushing pawl 34 moves into the recess 2.
6 and the latch part 24, the J latch lip 24 is pushed outward, and the latch part 24 is separated from the protruding tooth 20.

Further, the push-in claw 34 may be inserted inside the arm between the latch 24 and the cap 14.

With the above structure, the cap 14 is attached to the main body 10.
As the cap 14 is screwed on, the latch portion 24 will go over the outer surface of the protruding teeth 20, and if the cap 14 is completely screwed onto the main body, even if you try to turn the cap 14 in the removal direction, the latch portion 24 will not move. It engages with the protruding teeth 20 to prevent rotation.

When removing the cap 14, the cap removal tool 30 was attached to the cap 14, the removal tool 30 was rotated in the direction of removing the cap 14, and the engagement with the protruding teeth 20 of the latch part 24 was released by the push-in pawl 34. After that, if the cap 14 continues to be rotated together with the cap 14 in the direction of removing the cap 14, the push-in pawl 34 maintains the disengaged state between the latch portion 24 and the protruding tooth 20, and the inclined surface 34a of the push-in pawl 34 moves toward the protruding tooth 20. , and the cap 14 is attached to the reservoir tank body 10.
depart from.

In the embodiment, the protruding teeth 20 are provided around the outer wall of the main body 10, but they may be provided at appropriate intervals, or even if provided at only one location, the protruding teeth 20 may be disposed around the outer wall of the main body 10. The original purpose can be achieved only by creating a certain play area to prevent rotation.

Further, the latch portion 24 of the cap 14 is not necessarily provided at one location, but may be provided at a plurality of locations, and the larger the number, the more secure the locking becomes.

However, in this case, the same number of push-in claws 34 of the cap removal tool 30 as the number of latch parts 20 must be provided at positions corresponding to the respective latch parts 20.

As described above, according to the cap rotation regulating device of the present invention, the cap does not easily loosen due to vibrations of the vehicle body, and even if someone tries to remove the cap in vain, it does not come off, and moreover, it is not necessary to remove the cap. In some cases, the cap can be removed very easily using the cap removal tool 30.

Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a cross-sectional view showing the locking device of the cap, Fig. 2 is an explanatory view showing the relationship between the protruding teeth and the latch portion, and Fig. 3 is an explanatory view of the cap removal tool. It is a perspective explanatory view. 10...1y the bar tank body, 12...Motorcycle brake master cylinder, 14...Cap, 16
...Inner lid, 18...Screw, 20...Protruding tooth, 22
... slope, 24 ... latch part, 26 ... recessed part, 2
8... Vertical surface, 30... Cap removal tool, 32.
...Ring, 34...Pushing pawl, 36a...Slanted surface, 36...Spanner, 38...L-shaped portion.

Claims (1)

[Scope of utility model registration request] In a device in which a cap is removably screwed onto the main body of a reservoir tank, serrated protruding teeth are provided on the outer peripheral wall of the main body below the threaded part and around the outer circumference of the threaded part so as to restrict rotation of the cap in the removal direction. A locking device for the cap, which is located outside the circle and extends from at least one portion of the cap so that a latch portion that engages with the protruding tooth can be elastically deformed in an outward direction, and a ring portion can be attached to and detached from the cap. The outer housing is arranged in a manner that corresponds to each latch part of the cap, rotates along the removal rotational direction of the cap, protrudes to be inserted between the latch part and the protruding teeth, and further rotates to get over the protruding teeth. A rotation regulating device for a cap of a reservoir tank, which comprises a cap removal tool extending to a push-in pawl 77 whose side surface is formed into an inclined surface.