JPH04314244A - Switch device for telephone set - Google Patents

Abstract

PURPOSE:To prevent reverse insertion and mis-insertion of a slide knob depending on the slide knob and a shape of a case member. CONSTITUTION:A preventing wall 1a and an operation lever 3a of a slide switch 3 prevent it that a slide knob 1 is inserted reverse by providing the prevention wall 1a to an operation section 1d of the slide knob 1. Moreover, a prevention projection 1b and a step 2b prevent mis-insertion of the slide knob 1 by providing the prevention projection 1b to a case retainer 1c of the slide knob 1 and the step to a case member 2.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone switch device.

0002

2. Description of the Related Art FIG. 2 shows a perspective view of a conventional telephone entry switch device. In FIG. 2, 5 is a sliding knob, and has a case part presser 5a and an operating part 5b. 6 is a case member, 6a and 6b are sliding grooves provided in the case member, and 7 is a sliding knob, which is a case part presser 7a.
and an operation section 7b. Sliding knobs 5 and 7 with different shapes
is supported by sliding grooves 6a and 6b provided in the case member 6, and operates a slide switch operating rod sandwiched between operating parts 5b and 7b.

0003

[Problems to be Solved by the Invention] However, in the above-mentioned conventional configuration, when there is a character display on the surface of the sliding knobs 5 and 7, or when the knobs have a curvature and are not symmetrical, the case member 6 sliding groove 6a provided in
, 6b must be specified, but there is a problem in that it is not possible to prevent the sliding knob from being inserted in the opposite direction. Further, there is also the problem that it is impossible to prevent the sliding knob 7 from being erroneously inserted into the sliding groove 6a of the case member 6 provided for inserting the sliding knob 5 having a different shape. The present invention solves these conventional problems, and aims to provide a telephone switch device that is easy to assemble and is error-free.

0004

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a switch device for a telephone including a case member provided with a groove for supporting sliding of a sliding knob, and a case member fixed inside the case member. It has a slide switch attached to a circuit board and a part that sandwiches the case member, and in the operating state, the U-shaped opening fits into the operation stick of the slide switch, and in the opposite direction, the U-shaped opening fits into the operation stick of the slide switch. and a U-shaped operating section that prevents the back side closing section from fitting into the operating rod of the slide switch, or at least two types of groove sections. , a case member having a stepped portion on the inner surface of at least one groove, a sliding knob having a prevention protrusion that prevents insertion into the groove by the stepped portion of the case member, and a sliding knob not having the preventing protrusion. There are two types.

[0005]

[Function] Therefore, according to the present invention, when the sliding knob operating portion is provided with a wall and is shaped like a U, it is possible to prevent the sliding knob from being inserted in the opposite direction. In addition, if the sliding knob is provided with a prevention protrusion on the inner surface of the groove of the case member, it is possible to prevent the sliding knob of a different shape from being inserted.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1(a) shows a telephone switch device according to a first embodiment of the present invention. Figure 1(a)
1, a sliding knob has a prevention wall 1a, a case part presser 1c, and an operating part 1d. 2 is a case member,
2a is a sliding groove provided in the case member 2, and 3 is a slide switch having an operating rod 3a. 4 is a substrate section. A sliding knob 1 is supported by a sliding groove 2a provided in a case member, and an operating portion 1d is operated by inserting an operating rod 3a of a slide switch 3 fixed to a base plate portion 4. The prevention wall 1a is a wall for preventing reverse insertion, and if it is formed integrally with the operation section 1d, when the sliding knob 1 is inserted in the opposite direction to the specified direction, the prevention wall 1a provided on the operation section 1d will be prevented. Since it is prevented from fitting into the operating rod 3a of the slide switch 3, the sliding knob 1 can be prevented from being inserted in the opposite direction.

FIG. 1(b) shows a telephone switch device according to a second embodiment of the present invention. In FIG. 1(b), the same reference numerals as in FIG. 1(a) act as components with the same functions. 1b is a prevention protrusion, and 2b is a stepped portion. The prevention protrusion 1b and the step thickness part 2b are for preventing incorrect insertion, and the prevention protrusion 1b is formed integrally with the case part presser 1c, and the step thickness part 2
If b is formed integrally with the case member 2, if the sliding knob 1 is incorrectly inserted in a place other than the specified insertion position, the case part retainer 1
Since the prevention protrusion 1b provided at c is prevented from fitting by the stepped portion 2b provided on the case member 2, incorrect insertion of the sliding knob 1 can be prevented.

[0008]

[Effects of the Invention] As is clear from the above embodiments, the present invention prevents the sliding knob from being inserted in the opposite direction by providing a wall on the operating portion of the sliding knob to form a U-shape. It has the effect of being able to. Furthermore, by providing the stepped portion on the inner surface of the groove of the case member and the prevention protrusion on the sliding knob, it is possible to prevent incorrect insertion of sliding knobs having different shapes.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a telephone switch device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a conventional telephone switch device.

[Explanation of symbols]

1, 5, 7...Sliding knob, 1a...Prevention wall, 1b
...Prevention protrusion, 1c, 5a, 7a...Case part presser,
1d, 5b, 7b...operation part, 2, 6...case member, 2a, 6a, 6b...sliding groove, 2b...stepped part,
3...Slide switch, 3a...Operation stick, 4...
Board part.

Claims (2)

[Claims] 1. A case member having a groove for guiding the sliding of a sliding knob, a slide switch attached to a board fixed inside the case member, and a portion that sandwiches the case member. However, in the operating state, the U-shaped opening fits into the operating rod of the slide switch,
A sliding knob having a U-shaped operating portion that prevents the U-shaped dorsal closing portion from fitting into the operating rod of the slide switch when inserted in the reverse direction. Device. 2. A sliding member comprising a case member having at least two types of grooves and a stepped portion provided on the inner surface of at least one groove, and a prevention protrusion that prevents insertion into the groove by the stepped portion of the case member. A switch device for a telephone set, comprising: a knob; and a sliding knob that does not have the preventing protrusion.