JPS586093Y2 - Switch housing - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a housing for a switch mainly used in electrical appliances and the like.

A switch housing is usually formed in two parts in order to incorporate a fixed terminal and a movable terminal therein.

Conventionally, these two-part casings have been assembled using screws or crimping with grommets, which requires relatively expensive parts such as screws and grommets, making assembly difficult. The disadvantage is that it is time-consuming and requires the use of a jig for assembly.

In view of the above circumstances, this idea was created to create a switch casing that can be easily assembled without using any assembly screws or crimping grommets, with little effort, and without using assembly jigs. The purpose is to provide

In order to achieve this purpose, this invention forms the joining edge from one end of the bottom wall of each half of the housing body to the other end into a non-linear shape in which concave parts and convex parts connect alternately, and When the joining edges of the halves are drawn in engraving, the concave part of one half is connected to the convex part of the other half, and the convex part of one half is connected to the concave part of the other half. Shape K Power.

The main feature is that the two halves are engaged and connected by a connecting plate, and the upper frame is fitted and fixed to the periphery of the top of both halves.

This invention will be explained in more detail below based on the drawings.

Figure 1 is a plan view of the tumbler switch, Figure 2 is its side view, Figure 3 is its bottom view, Figure 4 is its elevation view, and Figure 5 is its elevation view.
The figure is an exploded perspective view with one half of the casing body omitted.

The casing body S of this tumbler switch also has two halves 1 formed by dividing it along a dividing line extending from one end to the other end in the longitudinal direction, that is, in the XX direction in the figure.

Each half 1 is made of an electrically insulating material, and the joint edge extending from one end of the bottom wall B to the other end includes a concave portion CCC and a convex portion T3. T2゜1, 2. 3 T □ is formed in a non-linear form 3n that continues alternately.

When the joining edges of both halves 1 are brought into contact with each other, as shown in FIG. The recesses in the other half fit together in a tongue-and-groove manner.

An engaging part C consisting of a vertical groove is provided at both ends of the bottom side of the side wall 1a connected to the opposite edge side of the bottom wall B, and with the joint edges of both halves 1 joined together, both halves 1 The engaging portions G at each end are engaged and connected to each other by a C-shaped connecting plate A.

In this embodiment, the engaging parts G at the ends of each side wall 1a of both half parts 1 and the engaging parts G at the other end are connected by f'L.
The structure is such that the C-shaped connecting plates A hold and engage with each other, and in order to make it easier to insert the engaging bent parts M at both ends of each connecting plate A into each engaging part G, the side walls 1a are Notches 1b are provided at the upper portions of both ends.

That is, the two halves 1 are butted together, the bent part M of the connecting plate A is inserted deep into the notch 1b, and then the bent part M is fitted into the retaining part G by pushing down the connecting plate A. With this extremely simple procedure, the bottoms of both halves 1 can be connected to each other without using any jigs.

In addition, in this embodiment, a pair of retaining tongues T are raised from the upper edge of the connecting plate A, and are attached to the upper frame D1, which will be described later.
The connecting plate A inserted into the retaining part G can be prevented from coming out of the engaging part G by being received on the lower surface of the protrusion provided on the upper edge of both end walls 1c of both half parts 1. be.

Both halves 1 are connected by each connecting plate A to form a housing body S,
Further, by fitting an upper frame made of a quadrilateral metal frame with an inverted letter-shaped cross section to the peripheral edge of the top of the casing body S, the top of the casing body S is prevented from opening.

Incidentally, in this embodiment, the lower edge D of the longitudinal frame of the upper frame
' is bent inward as shown in the fourth block, and both ends of each lower edge b' are attached to the upper edges of both end walls 1c of each half 1, and the protrusions are bent inward. By being locked to the lower surface of the housing body S, the upper frame is configured to prevent the housing body S from coming off as well.

In the north, the symbol H indicates the switch handle, the L&P terminal fitting, and the P symbol for the tongue piece for fitting into the case. Tongue piece P
is in elastic contact with the wall surface of the casing insertion part, and the casing main body S is resiliently supported in the casing insertion part.

As explained above, this invention connects the bottom portions of each half of the casing body with each other through a connecting plate, and also fits the upper frame around the periphery of the top of the casing body. Since the top of the main body is configured so that it does not open, there is no need to use relatively expensive screws or crimping tows to assemble the casing including the upper frame, and the product price can be reduced. By fitting the concave and convex parts of the joining edges of each half, each half can be joined together without shifting along the joining edges, and the above can be done by simply fitting each part in order without using any jig. The casing can be assembled, and as a result, equipment costs are reduced, and setups for assembly work and other work are simple and easy, and high efficiency and productivity are achieved. I can provide something.

In particular, it consists of molded products such as injection molding of each half,
Further, when the upper frame is formed by sheet metal punching, there are advantages such as high assembly accuracy and accurate switch operation.

[Brief explanation of the drawing]

Drawing ridge shows one embodiment of this invention, and Fig. 1 shows a tumbler.
Fig. 2 is a plan view of the switch, Fig. 2 is a side view thereof, Fig. 3 is a bottom view thereof, Fig. 4 is an elevational view thereof, and Fig. 5 is an exploded perspective view with one half of the main body of the switch omitted. be. 1...half part, A...connecting plate, B...
...Bottom wall, C1C2, C3...Concavity, D...
...Upper frame, G...Engagement part, S...
Housing main body, T T T . . . Convex portion. 23

Claims (1)

[Scope of utility model registration request] The joint edges from one end of the bottom wall of each half of the housing body to the other end are formed in a non-linear shape in which concave portions and convex portions are alternately continuous, and the joint edges of both halves are brought into contact with each other. In this state, the convex part of one half fits into the concave part of the other half, and the concave part of the other half fits into the convex part of one half in a tongue-and-groove shape. A retaining part is provided at the bottom of both ends, and with both hands joined together, the engaging parts at each end of both halves are engaged and connected by a connecting plate, and the top of both halves is connected. A switch casing characterized by being configured such that an upper frame is fitted around the periphery and fixed.