JPS6236249Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a click device for electrical components such as variable resistors or switches, and more particularly to an assembly structure for a click mechanism.

For example, in a conventional click device for a variable resistor, as shown in FIGS. 1 and 2, the main body case consists of three-layered cases 1, 2, and 3, and a support plate 5 is attached to the lower case 3 with screws 4. A click device is fixedly attached to the support plate 5 and housed in the lower case 3. Note that the variable resistance section is housed in cases 1 and 2. In the figure, 16 is a rotating shaft, 17 is a bearing, and 18 is a rotation stopper. The click device is
As shown in FIG. 2, it consists of a click plate 6, a ball 7, and a leaf spring 8, which are arranged on a mounting plate 9 which is attached to the support plate 5 so as to overlap with each other.

The click plate 6 is rotatably supported on the mounting plate 9 by a shaft 10, and has a large number of teeth 6a formed all over its outer periphery. The leaf spring 8 is
A pair of mounting pieces 11 erected from the mounting plate 9
and 12, one end of which is fixed to the mounting piece 11 with a screw 13, and the other end of which is removably inserted into a hole provided in the mounting piece 12. A hemispherical recess 8a is formed approximately in the center of the leaf spring 8. On one side of the leaf spring 8, a stopper piece 14 is provided upright from the mounting plate 9 so as to restrict the movable range of the leaf spring 8.

A ball 7 is mounted in the recess 8a of the leaf spring 8 for cooperating with the teeth 6a of the click plate 6 to moderate the rotation of the click plate 6. The ball 7 is held against the teeth 6 of the click plate 6 by a leaf spring 8.
It is elastically biased toward the tooth 6a so that it can be engaged with and disengaged from the tooth 6a.

When adjusting the resistance value in this variable resistor, when the rotating shaft 16 is rotated, the click plate 6 also rotates, and the rotation of the click plate 6 causes the ball 7 to be moved between the teeth 6a of the click plate 6. The slider (not shown) of the variable resistance section rotates while providing moderation by repeating elastic engagement and disengagement to obtain a desired resistance value.

In the above conventional click device, the ball 7
When adhering the ball 7 to the leaf spring 8, the ball 7 is attached with grease and placed on the metal plate 15 for mounting the ball 7. And the plate 15 is connected to the leaf spring 8
The ball 7 is inserted between the teeth 6a of the click plate 6, and the ball 7 is inserted into the recess 8a of the leaf spring 8. After the ball 7 is attached to the recess 8a with pre-applied grease, the metal plate 15 is inserted. I was trying to pull it out.

However, according to the above method, not only is a troublesome work such as inserting the metal plate 15 between the click plate 6 and the leaf spring 8 and removing it from between them, but also it is necessary to remove the metal plate 15 from there. At this time, the ball 7 may also fall out of the recess 8a of the leaf spring 8, resulting in the disadvantage that more man-hours are required to assemble the ball.

SUMMARY OF THE INVENTION An object of the present invention is to provide a click device for electrical parts that eliminates the drawbacks of the prior art described above and has excellent ball assembly workability.

To achieve this objective, the present invention includes a click plate rotatably attached to a support member, formed in a disk shape, and having a plurality of teeth on the outer periphery, and a click plate provided opposite to the teeth of the click plate. and a moderator disposed between the leaf spring and the click plate and capable of engaging with the teeth, and by engaging and disengaging the moderator from the teeth, the rotation of the click plate is moderated. The invention is characterized in that a cut-out recess for mounting the moderator is provided on the outer periphery of the click plate, connected to the teeth described above.

Hereinafter, one embodiment of the present invention will be described in detail based on FIGS. 3 and 4. In these figures, the same reference numerals as in FIGS. 1 and 2 indicate the same or equivalent parts.

The click plate 6 is pivotally supported by a rotation shaft 10, and a large number of teeth 6a that engage with the ball 7 are formed on its outer periphery. Further, at a predetermined location on the outer periphery of the click plate 6, a notch 6b for mounting a ball is formed, which has inclined surfaces 6c, 6c gently curved from two directions opposite to the axial direction of the click plate 6. ing. The ball 7 is fitted into a hemispherical recess 8a formed approximately at the center of the leaf spring 8.

Further, the leaf spring 8 has one end fixed to the mounting piece 11 with a screw 13, and the other end inserted into a hole provided in the mounting piece 12, so that the leaf spring 8 can be elastically swung between the mounting pieces 11 and 12. It is freely stretched, and a stopper piece 14 is provided on the back side.

When installing the ball 7 in the recess 8a of the leaf spring 8, rotate the click plate 6 via the shaft 10,
The click plate 6 is moved so that the cutout recess 6b is located in a position corresponding to the recess 8a of the leaf spring 8.

Next, by fitting the ball 7 into the recess 8a of the leaf spring 8 from the space of the notch recess 6b, the ball 7 is held in the recess 8a with the grease applied to the recess 8a in advance. Ru. next,
By rotating the click plate 6, the leaf spring 8
The center portion of the ball 7 moves away from the click plate 6, and the ball 7 engages with the outer tooth 6a of the click plate 6, and is elastically biased between the click plate 6 and the leaf spring 8. Retained.

As explained above, according to the present invention, a notch recess is provided on the outer periphery of the click plate, and a ball can be mounted from the recess, which simplifies the structure.
Assembling the ball becomes extremely easy, and the man-hours required for assembling the click device as a whole can be greatly reduced.

[Brief explanation of the drawing]

Fig. 1 is a side view of a variable resistor, Fig. 2 is a top view for explaining the assembly process of a conventional click device, and Figs. 3 and 4 are top views of the main parts of the click device of the present invention. 6...Click plate, 6a...Tooth strip, 6b...Notched recess, 7...Ball, 8...Leaf spring, 10...
…shaft.

Claims (1)

[Scope of utility model registration request] a click plate rotatably attached to a support member, formed in a disk shape and having a plurality of teeth on the outer periphery; a leaf spring provided opposite to the teeth of the click plate; and the leaf spring and the above. An electric component comprising a moderator disposed between the click plate and capable of engaging with the teeth, and moderating the rotation of the click plate by engaging and disengaging the moderator from the teeth. A click device for an electrical component, characterized in that a notch recess for mounting the moderator is provided on the outer periphery of the click plate and is connected to the teeth.