JPH088489Y2 - Switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention is provided with a rectangular tubular case having fixed contacts, and a movable contact having movable contacts that come in contact with and separate from the fixed contacts. The present invention relates to a switch device in which a body is slidably accommodated.

(Prior Art) In this type of switch device, a rectangular tubular case is composed of a case main portion having a U-shaped cross section and an insulator that closes a side opening of the case main portion. Fixed contacts are provided on the inner surface side of the insulator.

(Problems to be Solved by the Invention) However, in the above-described conventional configuration, since the case is composed of two parts, the case main part and the insulator, there is a problem that the number of parts and the number of assembling steps are large.

Therefore, an object of the present invention is to provide a switch device capable of reducing the number of parts and the number of assembling steps.

[Structure of the Invention] (Means for Solving the Problems) A switch device of the present invention includes a rectangular cylindrical case having a fixed contact on the inner surface of one side wall, and is slidably housed in the case and fixed. A switch device comprising a movable body having a movable contact that comes into contact with and separates from the contact, comprising a guide portion provided on a side wall portion of the case facing the fixed contact, and guiding the movable body, and the fixed contact. A first die-cutting hole formed so that the guide portion remains on a side wall portion facing the second side portion, and a second die-forming hole formed on the side wall portion having the fixed contact of the case for forming the guide portion. It is characterized by having a die-cutting hole.

(Operation) According to the above means, since the first and second die-cutting holes are formed in the case, the movable body is guided to the side wall portion of the case facing the fixed contact by, for example, a half die. It is possible to form a guide portion for This allows
Since the case can be composed of one molded part, the number of parts and the number of assembling steps are reduced as compared with the conventional case which requires two parts.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

First, in FIG. 3, a support protrusion 1a is provided on the upper surface of the switch body 1 in the figure, and an operation knob 2 is rotatably provided on the support protrusion 1a. A switch unit 3, which is a switch device, is arranged on the right side in the drawing inside the switch body 1.
Is composed of a rectangular tubular case 4 and a movable body 5 housed in the case 4 slidably in the vertical direction in the figure. Here, the switch unit 3 will be described with reference to FIG.

In FIG. 1, the right side wall portion 6 which is one side wall portion of the case 4 is provided with, for example, two fixed contacts 7 and 8 on its inner surface by insert molding. Further, as shown in FIG. 2, the left side wall 9 which is a side wall facing the fixed contacts 7 and 8 of the case 4 has a rectangular shape as a whole and guide portions 9a and 9b on both side edges. The first die-cutting hole 9c is formed so as to leave. The right side wall portion 6 having the fixed contacts 7 and 8 is formed with second die-cutting holes 6a and 6b for molding the guide portions 9a and 9b. Also,
A convex portion 6c for moderation is formed in the upper center portion of the inner surface of the right side wall portion 6. The terminals 7a and 8a are formed by extending the fixed contacts 7 and 8 downward.

On the other hand, the movable body 5 includes a contact holding portion 10 and this contact holding portion.
It is composed of a connecting convex portion 11 protruding from the upper surface of 10. Contact holder
An accommodation hole 10a is formed in a portion of the portion 10 corresponding to the moderation convex portion 6c. In the accommodation hole 10a, a moderation ball 12 and a coil spring 13 for urging the ball 12 in a direction to press the moderation ball 6 against the moderation convex portion 6c are accommodated. In addition, a groove portion is provided on three sides of the outer periphery of the lower half of the contact holding portion 10.
10b is formed, and the fixed contact 7,
A movable contact 14 having a substantially U-shape that comes into contact with and separates from the movable contact 8 is provided. In this case, the claws 1 protruding from both sides of the groove 10b
Engagement holes 14a formed at both ends of the movable contact 14 are engaged with 0c. A housing hole 10d is formed below the housing hole 10a in the contact holding portion 10, and a coil spring that urges the movable contact 14 in the housing hole 10d in a direction to bring the movable contact 14 into contact with the fixed contacts 7 and 8. 15 are housed. In addition, the connecting convex portion 11 of the movable body 5 is projected upward through a cylindrical through hole 1b formed on the right side of the upper surface of the switch body 1, and
A shaft portion 11a formed at the upper end of the connecting convex portion 11 is rotatably supported inside the right end of the operation knob 2. In this case, when the operation knob 2 is rotated clockwise from the state shown in FIG. 3, the movable body 5 moves downward as shown in FIG. It is designed to be conducted. When the movable body 5 moves downward, the ball 12 and the convex portion 6c give the movable body 5 an appropriate sense of moderation.

Next, the case of manufacturing the case 4 will be described with reference to FIG.

FIG. 5 is a cross-sectional view when insert molding is performed with a half mold, and one mold 16 has a convex portion 16a that is inserted into the first mold removal hole 9c. . Further, the other die 17 is formed with convex portions 17a, 17a which are inserted into the second die-cutting holes 6a, 6a. Then, for example, hot water of plastic is injected and filled into the cavity formed by these two molds 16 and 17 with the fixed contacts 7 and 8 arranged at predetermined positions. As a result, the case 4 having the fixed contacts 7 and 8 is insert-molded as one molded part.

According to this embodiment having such a configuration, the case 4 is
Since the second die-cutting holes 9c and 6a, 6a are formed, for example, the movable body 5 is provided on the left side wall portion 9 of the case 4 facing the fixed contacts 7, 8 by the two-piece die 16,17. It is possible to form guide portions 9a, 9b for guiding the. As a result, the case 4 can be composed of a single molded part formed by insert molding, so that the number of parts and the number of assembling steps can be reduced as compared with the conventional case which requires two parts.

[Advantages of the Invention] As is apparent from the above description, the present invention includes a guide part provided on a side wall of the case facing the fixed contact and guiding the movable body, and the side wall facing the fixed contact. A first die-cutting hole formed so that the guide portion remains, and a second die-cutting hole formed in a side wall portion of the case having a fixed contact for forming the guide portion. Therefore, the case can be composed of one molded part, and the excellent effect that the number of parts and the number of assembling steps can be reduced as compared with the conventional case is exerted.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an exploded perspective view of a switch unit, FIG. 2 is a perspective view of a case, FIG. 3 is a vertical side view, and FIG. 4 shows different states. FIG. 3 is equivalent to FIG. 3, and FIG. 5 is a cross-sectional view showing a state of molding with a mold. In the drawing, 3 is a switch unit (switch device), 4 is a case, 5 is a movable body, 6 is a left side wall portion (one side wall portion), 6a, 6
a is a second die-cutting hole, 7 and 8 are fixed contacts, 9 is a left side wall portion (side wall portion), 9a and 9b are guide portions, 9c is a first die-cutting hole, 16 and 17
Indicates the type.

Claims (1)

[Scope of utility model registration request] 1. A switch comprising a rectangular cylindrical case having a fixed contact on an inner surface of one side wall, and a movable body having a movable contact slidably housed in the case and contacting and separating from the fixed contact. In the device, a guide portion provided on a side wall portion of the case facing the fixed contact for guiding the movable body, and a first side portion formed so that the guide portion remains on the side wall portion of the case facing the fixed contact. A switch device comprising: a die-cutting hole; and a second die-cutting hole formed in a side wall portion of the case having the fixed contact for forming the guide portion.