JP2896957B2 - Method of manufacturing slide switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method of assembling a slide switch that can be used in a vehicle interior light and the like, and more particularly, to a method of manufacturing a slide switch in which automatic assembly can be simplified.

[0002]

2. Description of the Related Art As a lamp using a slide switch, conventionally, as described in Japanese Patent Application Laid-Open No. Hei 5-221264, a lamp connected to a socket opposite to an insulating plate blinks a lamp inserted into the socket. A switch-equipped lamp with a knob having a knob on the lower surface and a movable contact piece on the upper surface in a narrow recess formed in the center of the insulating plate and connected to a concave portion formed on the side edge of the insulating plate and having a long hole formed in the center. While placing the moving piece, a plurality of fixed contact pieces in contact with the movable contact piece are respectively arranged in parallel by engaging with the concave portions of the side edges, respectively. Each of the rising portions passing through the concave portion is outwardly bent to form a plug piece, and the rising bending extension portion passing through the concave portion of the central fixed contact piece is connected to one of the sockets. A concave portion between the plug pieces The bent extension portion of the arranged plug piece is connected to the other side of the socket, and the fixed contact piece is located with the switch lid engaged with the upper edge of the elongated recess, and is integrally formed on the surface of the switch lid. A switch-equipped lamp is known in which a plug cover is inserted into the plug piece through the hole to protect the plug.

[0003]

In the prior art described above, when one plug cover is put on three plug pieces, three small holes provided on the back surface of the plug piece are so-called "desk". And one by one through a drawer-type drawer, push the switch lid in the horizontal direction parallel to the surface of the insulating plate, move it, and mount it with screws.

[0004] However, the above-mentioned mounting method of this conventional example firstly involves three fixed contact pieces placed above the movable contact piece floating above the upper edge of the insulating plate recess by a resilient spring. After the entire body is lowered or settled by a manual or assembling robot arm to the vicinity of the upper edge of the insulating plate recess against or against the elasticity of the spring, the fixed contact piece is pressed with a switch lid with a plug cover. Slide the switch lid while attaching, insert the three back holes of the plug cover through the protruding ends of the plug pieces, push the whole switch lid further in the drawer type against the insulating plate surface and slide it in parallel to mount it. is there.

Therefore, this conventional example requires a special fixed contact pressing robot arm for pressing down three fixed contacts against the resilience of a spring, a manual operation, and a plug cover. Sliding mounting of the switch lid while holding down all of the fixed contact pieces is troublesome, and the direction in which the fixed contact pieces are pressed and the direction in which the plug cover of the switch lid is inserted into the plug piece is different by 90 °. Becomes

Further, in combination with this difference in direction, the vertical mounting of a large number of mounted members, such as a sliding piece having a movable contact piece, a plurality of fixed contact pieces, a lamp and its socket, on an insulating plate. The direction and the horizontal insertion direction of the switch cover to be slide-mounted by inserting the back hole of the plug cover through the plug piece and pushing it into the insulating plate in a “pull-out” manner are also 90 °.
Therefore, in the above-mentioned prior art, the assembling direction of the slide switch is two directions in the vertical and horizontal directions.

As a result, in this conventional example, first,
In the manual assembly of slide switches, work efficiency is poor, it is troublesome, and the yield of good products is poor, and the cost is high.In the automatic assembly, the assembly robot arm and parts transfer robot are complex, large-area, large-sized and expensive, and capital investment is limited in terms of location. There is also an essential first problem in that it is uneconomical.

Further, in this conventional example, during the assembly of the slide switch section, three fixed contact pieces are placed on a movable contact piece floating above the insulating plate recess by a resilient spring. Hold the rear rising edge of the fixing piece in contact with the concave surface of the insulating plate, and hold the switch lid horizontally while pushing down the upper part with the lower surface of the switch lid and rubbing it. Move it to the hole 3 on the back of the plug cover.
It is necessary to slide the switch lid over the insulating plate recess while separately inserting the three through the three plug pieces.

As a result, in the slide cover operation of the switch cover in this conventional example, all the three fixed contact pieces floating elastically are pushed down and rubbed against the elasticity of the elastic spring as described above. Because it is a slide cover work,
The assembling operation is even more difficult, and there is also an essential second serious problem that the automatic assembling is almost impossible.

According to the present invention, in order to eliminate the above-mentioned problems, all members are randomly overlapped from one direction perpendicular to the opening edge of the base recess so that the members can be assembled by pressing and fitting. An object of the present invention is to simplify automatic assembly of a switch.

[0011]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sliding member which is provided with a knob extending outward from a long hole formed in a recess of a frame-shaped base, and a sliding body is vertically inserted into the recess from above. And a rear portion of at least one of the plurality of band-shaped fixed contact pieces slidably disposed on an upper portion of a movable contact piece elastically provided through a resilient spring to the upper surface of the sliding body. Is made upright in the thickness direction to form a rising support piece, and the upper portion of the rising support piece is further bent forward to form a plug portion, and the rising support piece is perpendicular to the rear opening edge of the base 1. The fixed contact piece is placed on the opening edge of the base in contact with the projecting projecting piece, while the insulating plate and the rear projecting piece having a guide piece for attaching and detaching guide of the plug-in jack to be inserted into the plug portion are formed. Insert the long hole of L-shape in the vertical section into the plug part By vertically passing the insulating plate over the base opening edge and fixing it, the rising support piece is tightly supported by the base protruding piece and the rear protruding piece of the insulating plate, and the base of the plug portion is fixed to the base portion. The positioning was reinforced by contacting the rear edge of the long hole.

[0012]

With the knob directed outward from the elongated hole formed in the recess of the rectangular frame-shaped base, a sliding body is inserted vertically into the recess from above, and a coil spring is mounted on the upper surface of the sliding body. A plurality of band-shaped fixed contact pieces can be slidably disposed on an upper part of a movable contact piece elastically provided via a resilient spring.

[0013] Of the plurality of strip-shaped fixing contacts,
The rear part of at least one fixing contact piece is made to stand upright in the thickness direction to form a rising support piece, and the upper side piece of the rising support piece is further bent toward the front, so that, for example, a plug part having one vertical character on the front side Can be formed, and the fixed support piece can be placed on the opening edge of the base by bringing the rising support piece into contact with a protruding piece perpendicularly protruding from the rear opening edge of the base.

On the other hand, an elongated plate having an L-shaped longitudinal section connected to an insulating plate having a guide piece for guiding attachment and detachment of a plug-in jack to be inserted into the plug portion and a rear projecting piece is provided on the plug portion. By vertically passing the insulating plate over the opening edge of the base and fixing it, the rising support piece can be supported by being tightly sandwiched between the base protrusion and the rear protrusion of the insulating plate, and the plug portion can be supported. The base of the slot can be brought into contact with the rear edge of the long hole to reinforce the positioning.All the members are sequentially joined and overlapped from one direction perpendicular to the opening edge of the frame recess, so that the slide switch can be mounted. Can be manufactured.

Therefore, the fixed contact piece in the slide switch made as described above does not move sloppyly due to disturbance such as sliding friction caused by the movable contact piece, and the plug portion can be inserted and removed with a separate plug-in jack or the like. It is stable without hitting and sneaking.

For example, a positive power source is connected to one plug, and another plug is connected to a negative power source such as a chassis via a door switch and a load such as a lamp in series via a load. By controlling the conduction between the fixed contact pieces by moving the movable contact pieces, for example, the in-car lamp can be turned off manually or turned on when the door is opened.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a slide switch will be described below with reference to the drawings. First, according to the slide switch manufacturing method of the present invention, as shown in FIG. 1, a knob 4 is externally provided from a long hole 3 penetrating through the bottom of a concave portion 2 of a hollow rectangular parallelepiped insulating base 1 made of plastic. For example, a sliding body 5 made of plastic or the like is protruded into the concave portion 2 of the insulating base 1 as shown in FIG. A recess 5 opening on the upper surface of the sliding body 5
2, a movable contact piece 7 having a pair of temporary fixing legs 7a which can be elastically temporarily locked through a resilient spring 6 such as a coil spring as shown in FIG.

Further, a plurality of metal band fixing contact pieces 8 and 8 which slide on the upper surface of the movable contact piece 7 as shown in FIG. 2b
Or directly in parallel as shown in FIG.

In the present invention, as shown in FIG. 1, the latter half of each of the fixed contact pieces 8, 8 or at least one of the fixed contact pieces 8 is bent upward in an L-shape in advance. After bending, the side piece that has passed through the rising support piece 8a is bent back again into an L shape to form a plug portion 8b of, for example, one vertical character.

Then, as shown in FIGS. 3 and 4, the rear surface of the rising support piece 8a is perpendicularly fitted to the protruding piece 1A of the base 1 or the vertical groove 1a formed on this protruding piece, and then the insulating plate 9 A long hole 9a having an L-shaped vertical section connected to the rear projecting piece 9A.
Is passed through the plug portion 8b, and the insulating plate 9 is put on the opening edge of the base 1 and fixed with screws or the like, so that the base of the plug portion 8b is positioned firmly at the rear edge of the elongated hole 9a penetrating the insulating plate 9. In addition to reinforcing, the plug portion 8b is
As shown in FIG.
, And the slide switch in which the rising support piece 8a is firmly held between the projecting pieces 1A and 9A of the base 1 and the insulating plate 9 can be manufactured.

The positions of the fixed contact pieces 8, 8 can be regulated in the inner surface grooves 9b of the insulating plate 9.
The fixing means to the base 1 may be any known fixing means other than screwing, for example, by hooking and fixing a hook-shaped elastic piece 9c shown by a dashed line in FIG. 1 to the upper edge of the side wall recess 1b of the base 1 by its elasticity. Can be fixed.

The fixed contact pieces 8, 8 facing the sliding body 5
6 and 7, an overhanging portion 1c is provided on the side of the insulating base 1 so as to cover the outer surface of the fixing member 8 at the rear portion of the fixing piece 8, as shown in FIGS. The plug portion 8b is covered with the guide piece 10 by placing the vicinity of the U-shaped rising portion and vertically covering the fixing plate 8 with an insulating plate 9 widened by the width of the overhang portion 1c as shown in FIG. In addition to being able to be surrounded and protected, the outer surface of the main part of the fixed contact piece 8 can be concealed and protected by the insulating plate 9.

One of the fixed contacts 8 in the slide switch thus manufactured is connected to the vehicle chassis or the like directly or via a lamp at a short distance, and only the other fixed contact 8 is connected. U-shaped rising support piece 8
a to form a plug portion 8b and surround it with a guide piece 10,
The circuit may be connected by a well-known plug-in jack J (see FIG. 3), and the other fixed contact pieces 8 may be dropped to the body ground by screws or the like at a close distance as described above.

Further, the rising support piece 8a of the fixed contact piece 8 is made wider than the plug part 8b as shown in FIG.
b itself is a horizontal one-character shape, and this plug portion 8b
Then, an insulating plate 9 having a wide L-shaped elongated hole 9a as shown in FIG. 9 is placed over the opening edge of the base 1 and fixed. The side projection of the rising support piece 8 can also be clamped tightly.

Furthermore, if three or more fixed contact pieces 8 are arranged in parallel, two adjacent fixed contact pieces 8
Can be sequentially turned on and off, and can be used as a switching slide switch.

In FIG. 1, a portion indicated by reference numeral 8c is a V-shaped notch or hole, and by engaging this with a pin 1b of the base 1, the positioning and positioning of the fixing contact piece 8 can be ensured.

Next, the operation of the slide switch thus manufactured will be described. First, as shown in FIG. 10, when the movable contact piece 7 is moved to the left, the fixed contact pieces 8, 8 can be electrically connected across the two contact portions of the movable contact piece 7.

Next, as shown in FIG. 11, when the knob 4 is moved to the right, the right contact of one of the movable contacts comes into contact with the inner surface of the insulating plate 9 to cut off the conduction between the fixed contacts 8 and 8 so that the switch is turned off. Can be turned off.

For example, a positive power source is connected to one plug portion 8b, and the other plug portion 8b is connected to a negative power source such as a chassis through, for example, a door switch and a load such as a lamp in series via a load. By controlling the conduction between the fixed contact pieces 8 by the movable contact piece 7 by moving the movable contact piece 7, for example, the in-car lamp can be manually turned off or turned on when the door is opened.

The guide leg 7a of the movable contact piece 7 is shown in FIG.
If the length is shortened together with the resilient spring 6, the slide switch can be made flat as a whole. Also, the sliding body 5 is formed with a forming pin hole 5b for expanding the depth of the recess 5a as shown in FIGS. 2 and 3, as shown in FIGS.

[0031]

The present invention employs the above-described method for manufacturing a slide switch, and has the following effects. According to the present invention, all members such as the sliding body 5, the resilient spring 6, the movable contact piece 7, the plurality of fixed contact pieces 8, and the insulating plate 9 are vertically attached to the opening edge of the base recess 2. A slide switch can be assembled by successively superimposing and pressing and fitting together, and compared with the conventional technique in which a large number of members are joined to the insulating plate from two directions in the vertical and horizontal directions, as compared with the conventional technique, the present invention is not required. In the invention, since the assembly is performed by pressing in one direction in the vertical direction, the assembling efficiency can be greatly improved as compared with the above-mentioned conventional one, and in the case of automatic assembling, the arm dedicated to pressing the fixed contact piece is not required, and the assembling robot and the parts are not required. The first advantage is that the present invention can simplify the supply robot and the like, and reduce the cost and the occupied space, so that the present invention can be significantly advantageous in terms of assembly cost and space. There.

According to the present invention, in particular, the frame-like substrate 1
The slide switch is assembled by pressing the insulating plate 9 serving as a switch lid from above the plug portion 8b and the fixed contact piece 8 to assemble the slide switch, so that a plurality of fixed contact pieces 8 and the plug portion 8b can be prevented from being deflected during assembly. There is also a second effect that the so-called "mis-assembly" accident in the automatic assembling process can be eliminated without the temporary fixing work, and the assembling workability can be greatly improved as compared with the conventional example. .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a manufacturing example of a slide switch according to the present invention.

FIG. 2 is an exploded sectional view of the embodiment of the present invention.

FIG. 3 is a sectional view after the assembly of FIG. 2;

FIG. 4 is a cross-sectional view taken along a broken line in FIG. 3;

FIG. 5 is a cutaway perspective view of a main part after the assembly of FIG. 1;

FIG. 6 is an exploded sectional view showing another example of the manufacturing method of the present invention.

FIG. 7 is a sectional view showing another example of the manufacturing method of the present invention.

FIG. 8 is a perspective view showing another example of the fixed contact plug portion according to the present invention.

FIG. 9 is a perspective view showing another example of the insulating plate according to the present invention.

FIG. 10 is a longitudinal sectional view showing an example of use of a slide switch obtained according to the present invention.

FIG. 11 is a longitudinal sectional view showing a state different from that shown in FIG. 10;

FIG. 12 is a sectional view of an assembling example in which the temporary fixing leg of the movable contact piece is shortened in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulating base 1A Base projecting piece 1a Vertical groove 2 Recess 3 Slot 4 Knob 5 Sliding body 5a Recess 6 Resilient spring 7 Movable contact piece 8 Fixed contact piece 8a Rising support piece 8b Plug section 9 Insulating plate 9A Insulating plate protrusion Piece 9a Long hole with vertical cross section L-shaped 9b Fixed contact piece burying groove 10 Guide piece for guiding attachment and detachment of plug-in jack J Plug-in jack

Claims (1)

(57) [Claims] An elongated hole (3) formed in a recess (2 ) of a frame-shaped substrate (1).
The knob 4 is directed outward from the recess 2 and
The slide 5 is loosely inserted vertically from the
A movable contact piece 7 elastically provided on a surface via a resilient spring 6
A plurality of band-shaped fixing pieces 8 slidably arranged on the upper part of the
The rear part of at least one fixing contact piece 8 is positioned in the thickness direction.
And make a standing support piece 8a.
The upper portion of the piece 8a is bent further forward to form the plug portion 8b.
The rising support piece 8a is attached to the rear opening edge of the base 1.
The fixed contact piece 8 is set in contact with the projecting piece 1A projecting vertically
While placed on the body opening edge, it is inserted into the plug portion 8b
Has a guide piece 10 for attaching and detaching the plug-in jack J
L-shaped longitudinal section connected to the insulating plate 9 and the rear projecting piece 9A
A vertically elongated hole 9a is formed in the plug portion 8b from above.
And fixing the insulating plate 9 over the opening edge of the base
The rising support piece 8a is connected to the base projecting piece 1A and the insulating plate.
9 and support it with the rear protruding piece 9A tightly
The base of the plug 8b is brought into contact with the rear edge of the slot 9a.
Slide switch characterized by contact and reinforcement
Manufacturing method of the switch.