JP2002150884A - Switch equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent misuse of an opening/closing element of single cutting or both cutting composition as the opening/closing element of 3 way composition or 4 way composition. SOLUTION: The opening/closing element 19BD of the same structure, which a movable point-of-contact 24 is formed in one side using with a B point-of- contact type composition and a D point-of-contact type composition. On the other hand, the opening/closing element 19CE of the same structure, which two movable points-of-contact are prepared in both sides using with a C point-of- contact composition and of an E point-of-contact type the composition. And, a width size of the opening-and-closing element 19BD in the side of the rocking fulcrum, in which the movable pointof-contact 24 is formed in one side, is made broader than that of the opening/closing element 19CE, in which the two movable points-of-contact are prepared by both sides (L1>L2).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As this type of switch device, there has been a switch device having an operation section provided on a front surface and having a switch body which is embedded and wired using a mounting frame fixed to a construction surface such as a wall surface.

[0003]

In the switch device having the above structure, the switch operation is performed using the operation unit provided on the switch body. However, since the size of the operation unit is smaller than that of the switch body, the operation of the switch device is difficult. There is a problem of poor operability and poor appearance. To solve this problem, a switching device with improved operability has been separately filed by the present applicant (Japanese Patent Application No. 11-288742).

FIG. 15 is an exploded perspective view of the switch device, FIG. 16 (a) is a front view, FIG. 16 (b) is a side view,
FIG. 16C shows a bottom view, and FIG. 17 shows a cross-sectional view.

This switch device has a substantially box-shaped synthetic resin body 1B having an open front surface, a synthetic resin cover 2 formed on the front surface of the body 1B and having a substantially rectangular shape. And a switch body 10 composed of A pair of locking projections 3 project from each side surface of the body 1B in the longitudinal direction, and a locking hole for locking and releasing the locking projection 3 from the rear edge of the cover 2. 4
The body 1B and the cover 2 are assembled by engaging and locking the locking projection 3 and the locking hole 4 with the tongue pieces 5 respectively.

The inside of the body 1B is partitioned into a plurality of sections by partitions, and terminal storage chambers 9, 9 for storing quick-connecting terminals are provided on both sides, and a contact of a single-cut type (B contact type) described later. A contact storage chamber 7 for storing the unit is provided substantially at the center.

[0007] In the terminal storage chambers 9 and 9, a contact terminal 11 and a common terminal 12 formed of a conductive material are stored, respectively. The contact terminal 11 and the common terminal 12 respectively have U-shaped portions 13 and 14 formed in a substantially U-shape, and a pair of locking springs 15 are housed in the U-shaped portions 13 and 14 respectively. , A quick-connecting terminal portion. In the bottom surface of the body 1B, two wire insertion holes 16 communicating with the respective terminal storage chambers 9 are provided.
They are drilled one by one.

Here, a brief description will be given of the quick-connecting terminal portion composed of the contact terminal 11, the U-shaped portions 13, 14 of the common terminal 12, and the locking spring 15. The chain-shaped piece 15b and the contact piece 15c of the locking spring 15 are formed at both ends of the central piece 15a by bending both ends of the strip of conductive material having elasticity. The U-shaped portions 13 and 14 of the contact terminal 11 and the common terminal 12 respectively include central pieces 13a and 14a and central pieces 13a and 14a from both end edges of the central pieces 13a and 14a.
Contact pieces 13b, 1 protruding in directions substantially orthogonal to
4b and contact pieces 13c and 14c. The central piece 15a of the locking spring 15 is provided with the contact terminal 11, the common terminal 1
Abutment pieces 13b, 14b, and the locking piece 15b is inclined in a direction approaching the contact pieces 13c, 14c of the U-shaped portions 13, 14 from the connection portion with the central piece 15a toward the tip edge, The contact piece 15c is bent in a substantially S shape, and the lock piece 15b and the contact piece 15c provided on the lock spring 15 face the contact pieces 13c and 14c of the U-shaped portions 13 and 14, respectively.

When connecting an electric wire to the quick-connecting terminal portion, a core wire (not shown) whose coating is stripped is inserted into the electric wire insertion hole 16.
When the lock spring 15 is inserted from the contact terminal 1, the lock piece 15 b and the contact piece 15 c of the lock spring 15
1. The conductor of the core wire is sandwiched between the contact pieces 13c and 14c of the common terminal 12, and the leading edge of the locking piece 15b bites into the conductor of the core wire to prevent the core wire from falling off. . Therefore, only by inserting the core wire of the electric wire into the electric wire insertion hole 16, the core wire of the electric wire is held and the electrical connection to the contact terminal 11 and the common terminal 12 is made. The wire insertion hole 16 is formed so as to become thinner toward the back, and
The core wire of the wire inserted into the contact terminal 11 and the common terminal 1
2 and the locking spring 15 are securely inserted.

A release button 17 is accommodated in each terminal accommodating chamber 9 so as to face the chain-like piece 15b of the pair of lock springs 15. To remove the core of the electric wire connected to the quick connection terminal, insert a tool such as a flathead screwdriver through a tool insertion hole 18 formed in the bottom of the body 1B, and release the button 17.
Is pressed, the projection 17a of the release button 17 presses the chain-like piece 15b, thereby bending the chain-like piece 15b away from the contact terminals 11 and the contact pieces 13c and 14c of the common terminal 12. The piece 15b is separated from the conductor of the core wire, and the core wire can be easily pulled out. Since the release button 17 has projections 17a on both sides, operating the release button 17 causes the chain-shaped pieces 15b of the pair of lock springs 15 to bend simultaneously, and the pair of lock springs 15 and the core wire. Can be released at the same time, and the core wire can be removed at once.

On the other hand, the contact portion is a contact terminal 11, a common terminal 1
2 and an opening / closing element 19. One contact terminal 11
A substantially L-shaped terminal piece 20 having a fixed contact 21 provided at an end thereof is protruded from a connecting portion between the central piece 13a and the contact piece 13b, and a contact piece of the other common terminal 12 is provided. A support piece 23 having a fulcrum protrusion 22 serving as a swing fulcrum of the opening / closing element 19 is formed at an end of the support piece 23 to protrude from an end of the b. The opening / closing element 19 is formed by bending a strip made of a conductive material into a substantially U-shape, and has side pieces 19b, 19b at both end edges of a central piece 19a.
Is formed on one side piece 19b.
A movable contact 24 is formed so as to freely come into contact with and separate from the movable contact.
Inwardly protruding ribs 3 are provided at substantially centers of both sides of body 1B.
3 and 33 are protruded, and the contact storage chamber 7 of the body 1B is provided.
When the contact piece 11 and the common terminal 12 are housed therein and the opening and closing element 19 is placed in the contact storage chamber 7 with the central piece 19a facing the bottom of the body 1B, the central piece 19a of the opening and closing element 19 is placed.
Abuts on the fulcrum projection 22 of the common terminal 12 and the switching element 19
Are arranged to be swingable about the fulcrum projection 22. At this time, the ribs 33, 33 are arranged on both sides of the opening / closing element 19, and the movement of the opening / closing element 19 in the short width direction of the body 1B is regulated by the ribs 33, 33. The switching element 19
The side piece 19b is provided with a projection 37 protruding laterally. The projection 37 is engaged with the rib 33,
The swing range of the switching element 19 is regulated.

On the other hand, the cover 2 has a substantially rectangular opening 2 on the front surface.
5 are formed, and bearing bases 26 protruding forward are protruded from an opening edge substantially at the center of the opening 25 in the longitudinal direction, and grooves 27 are formed on the surfaces of the bearing bases 26 facing each other. The cover 2 is provided on both sides in the short width direction of the cover 2.
Steps 28, 28 which are one step higher than the front surface of the pair are formed, and each step 28 is provided with a pair of locking claws 29 as attachment means projecting sideways. The locking claw 2
From 9, mounting means for releasably locking with an instrument mounting portion provided on a plate frame which is a mounting frame fixed to the construction surface is configured.

A reversing handle 30 made of synthetic resin, which is an operating portion for opening and closing the contact portion, is substantially box-shaped with an open back surface, is formed in a substantially rectangular front surface, and has both longitudinal side surfaces. Are provided with projections 31 which enter the grooves 27 of the cover 2 respectively. An opening 34 is formed at one end of the front surface of the reversing handle 30 in the longitudinal direction, and pawls 35 and 3 serving as locked portions protruding laterally on both sides of the opening 34.
5 is protrudingly provided, and a claw 36 protruding sideways is protrudingly provided substantially at the center of the other end of the front surface of the reversing handle 30 in the longitudinal direction. A bar-shaped projection (not shown) for receiving the coil spring 32 is provided on the back side of the front surface of the cover 2.

An operation handle 38a made of synthetic resin is detachably attached to the front side of the reversing handle 30. At the substantially longitudinal center of the back surface of the operation handle 38a, locking claw pieces 39, 40 as elastic locking means are protruded. Inwardly protruding claws 3 are provided at the tips of the locking claw pieces 39 and 40.
9a, 40a are protruded, and the claw 39 of the locking claw pieces 39, 40 are provided.
a, 40a and the claws 35, 36 of the reversing handle 30 are locked so that the center in the longitudinal direction of the handle 38a and the center in the short width direction of the switch body 10 substantially coincide with each other. Is attached to the reversing handle 30.

An operating handle 38a corresponding to the opening 34 of the reversing handle 30 has an operating handle 38a.
A groove 41 running along the longitudinal direction of a is formed. In this groove 41, a handle line 4 made of a long plate is used.
5a is attached. A window hole 46 is formed substantially at the center of the handle line 45a. Also handle line 4
A locking claw 48 as a locking portion protruding rearward is protruded from portions corresponding to the holes 43b to 43d on both side edges in the longitudinal direction of 5a. Claws 49 are provided. Thus, handle line 4
When attaching 5a to the operation handle 38a, first, the protrusion 47 of the handle line 45a is
3a, the handle line 45a is rotated with the projection 47 as a fulcrum, and the locking claw pieces 48 of the handle line 45a are inserted into the corresponding holes 43b to 43d. Claws 49 provided and holes 43b to 43d
Of the handle line 45.
a is attached to the operation handle 38a.

In this configuration, a protrusion 47 is provided on one end side of the handle line 45a in the longitudinal direction, and first, the protrusion 4 is formed.
7 into a hole 43a formed in one end of the groove 41,
The handle line 45a is rotated with the projection 47 as a fulcrum, and the locking claw 38 is inserted into the corresponding hole 43b to 43d to lock the claw 39 with the end of the hole 43b to 43d. The rotation of the line 45a does not make it difficult to attach.

In FIG. 3, a turning-on display section 52 having a neon lamp 53 as a position indicating lamp which lights up when the one-sided type contact section is turned off to indicate the installation position of the switch device is incorporated in the reversing handle 30. A neon lamp 53 faces an opening 34 formed in the front surface of the lamp 30. An elongated hole 54 that penetrates the operation handle 38a is formed in a portion of the groove 41 of the operation handle 38a corresponding to the window hole 46 of the handle line 45a. The prism 55a, which is a light guide member, has a hole 54 and a window 4
6 has an elongated convex portion 56 which is a rounded projection at the front end projecting from the front surface of the handle line 45a, and the convex portion 56 is inserted into the hole 54 from the back surface side of the operation handle 38b. In this state, the prism 55a is swaged and fixed to the operation handle 38a. Thus, when the operation handle 38a is attached to the reversing handle 30, the prism 5
The incident surface 57 of 5 a is arranged to face the neon lamp 53. Further, since the tip of the convex portion 56 of the prism 55a protrudes from the front surface of the operation handle 38a, the position of the operation handle 38a to be pushed when the contact portion is turned on by the convex portion 56 can be easily determined. .

On the other hand, the lighting display section 52 is constituted by electrically connecting a neon lamp 53 and one end of a resistor R to a terminal plate (not shown) insert-molded on a circuit board 52a made of synthetic resin. A press-fit hole 52 is provided substantially at the center of the substrate 52a.
b is formed. A bar-shaped projection (not shown) provided in the reversing handle 30 and into which one end of the coil spring 32 is inserted and fixed is press-fitted into the press-fit hole 52b, whereby the circuit board 52a is fixed to the bar-shaped projection and the reversing handle 30 is fixed. Will be delivered inside. At this time, the neon lamp 53 and the resistor R are housed in the space around the bar-shaped projection in the reversing handle 30.

From one end of the circuit board 52a in the longitudinal direction (the side facing the contact terminal 11), the contact terminal 11 is formed integrally with a terminal plate insert-molded on the circuit board 52a.
A terminal piece 52c that comes into contact with and separates from the upper surface portion of the device is protruded. A contact (not shown) is formed on the lower surface of the terminal piece 52c. One terminal Ra of the resistor R is inserted into the rod-shaped projection through a vertical groove provided on the side surface of the rod-shaped projection. Then, the terminal Ra of the resistor R and the coil spring 32 are brought into contact and conduction inside the rod-shaped projection.

The procedure for assembling the switch device will be briefly described below. First, a pair of locking springs 15 and a release button 17 are stored in each terminal storage chamber 9 of the body 1B, and the contact terminal 11 and the common terminal 1 are stored in the contact storage chamber 7.
2 and the opening / closing element 19 are housed, and the reversing handle 30 in which one end of the coil spring 32 is accommodated in a rod-shaped projection.
Is assembled into the body 1B such that the other end of the coil spring 32 enters the central piece 19a of the opening / closing element 19, and then the cover 2 is attached from the front side of the body 1B, and the locking projection 3 and the cover of the body 1B are attached. The body 1 </ b> B and the cover 2 are connected by engaging the two engagement holes 4 with the concave and convex. At this time, the coil spring 32 is pressed and bent between the opening / closing element 19 and the reversing handle 30, and the projection 31 of the reversing handle 30 is pressed against the groove 27 of the bearing 26 by the spring force of the coil spring 32, and
0 holds the switched state.

Next, a state in which the reversing handle 30 is inclined (that is, a state in which the side of the reversing handle 30 where the two claws 35 protrude is higher than the side where the pawl 36 protrudes).
First, the claw 40a of the locking claw piece 40 corresponding to the claw 35 of the reversing handle 30 is locked to the claw 35, and then the approximate center of the operation handle 38a is pressed toward the switch body 10, and the locking claw piece is pressed. The operation handle 38 a is attached to the reversing handle 30 by locking the claw 39 a protruding from the 39 and the claw 36 of the reversing handle 30.

On the other hand, when the operation handle 38a is detached from the reversing handle 30, first, the reversing handle 30 and the operation handle 38a are inclined (that is, the side where the two claws 35 of the reversing handle 30 are projected) In a state in which the claw 36 is lower than the side where the claw 36 is protruded), a tool such as a flathead screwdriver is inserted between the step 28 of the cover 2 and the operation handle 38a, and the tool is tilted with the step 28 as a fulcrum. Then, the side wall of the operation handle 38a is pulled outward by the tool, and the main part of the operation handle 38a is bent, and the locking claw pieces 39 protruding from the back surface of the main part of the operation handle 38a are inclined outward. The locking state of the pawl 39a of the pawl piece 39 and the pawl 36 of the reversing handle 30 is released, and the operation handle 3
8a can be removed from the reversing handle 30. As described above, since the operation handle 38a is detachably attached to the reversing handle 30, when the operation handle 38a is damaged, only the operation handle 38a can be replaced, and by preparing the operation handles 38a of various colors. The operation handle 38a of a color according to the atmosphere of the construction site can be selected and attached. A rib 51a is provided on the back side of the main portion of the operation handle 38a so as to abut on a part of the front and side surfaces of the inversion handle 30. Therefore, when the operation handle 38a is attached to the inversion handle 30, The backlash of 38a can be suppressed.

This switch device is detachably attached to a plate frame (not shown) fixed to a construction surface.
The plate frame is formed of a synthetic resin having an insulating property into a rectangular frame shape having one side longer than the other side, and an operation handle 3 attached to the front surface of the switch body 10 in the center.
A rectangular opening window is provided to expose 8a to the front side. The size of the opening window is substantially the same as the longitudinal direction of the opening window when the size of the switch body 10 is the reference size of the wiring device (hereinafter, this size is referred to as “one module size”). The switch body 10 having one module size is formed in such a size that three switch bodies 10 can be mounted side by side in the direction orthogonal to the longitudinal direction.

The operation of the switch device will be briefly described below. As shown in FIG.
a and the reversing handle 30 are inclined downward to the right in FIG.
When the left side of the operation handle 38a in FIG. 3 is pressed in a state where the movable contact 24 is in contact with the fixed contact 21 (on state), the reversing handle 30 is reversed by a force pressing the operation handle 38a, and the left side in the figure. The state is inclined downward. Since the coil spring 32 warps to the right in FIG. 3 in response to the reversing operation of the reversing handle 30, the opening / closing element 19 rotates clockwise in FIG. 3 around the fulcrum projection 22 as a fulcrum according to the degree of bending of the coil spring 32. Then, the movable contact 24 is separated from the fixed contact 21. At this time, the reversing handle 30 holds the reversing state by the spring force of the coil spring 32,
The contact portion remains off. Also, the circuit board 52a
A contact formed on the lower surface of the terminal piece 52c protruding from the end of the contact terminal makes contact and conduction with the upper surface of the contact terminal 11, and the switching element 19
Power is supplied to the neon lamp 53 and the resistor R through the coil spring 32 that is in contact and conduction with the neon lamp 53, and the neon lamp 53 is turned on. Light emitted from the neon lamp 53 is incident on the incident surface 57 of the prism 55a, and The light is refracted by the projection and is emitted to the outside from the projection 56, and the position of the switch device can be displayed when the contact portion is turned off.

On the other hand, in a state where the operating handle 38a and the reversing handle 30 are tilted to the lower left in FIG. 3 and the movable contact 24 is separated from the fixed contact 21 (off state), the right side of the operating handle 38a in FIG. When pressed, the reversing handle 30 performs a reversing operation by a force pressing the operation handle 38a, so that the reversing handle 30 is inclined downward to the right in the drawing. In response to the reversing operation of the reversing handle 30, the coil spring 32 moves as shown in FIG.
Since the coil spring 32 is bent to the middle left side, the opening / closing element 19 uses the fulcrum projection 22 as a fulcrum according to the degree of bending of the coil spring 32 in FIG.
Rotating in the middle left direction, the movable contact 24 comes into contact with the fixed contact 21. At this time, the reversing handle 30 is connected to the coil spring 3
The contact state is maintained in the ON state while maintaining the inverted state by the spring force of No. 2. Also, the terminal strip 5 of the circuit board 52a
Since 2c is separated from the upper surface of the contact terminal 11, the neon lamp 53 is turned off. A pair of substantially V-shaped ribs projecting rearward are provided on the back surface of the main portion of the operation handle 38a, and when the end of the operation handle 38a is pressed, the tip of the rib contacts the cover 2. Because it touches, operation handle 3
8a can be prevented from sinking into the switch body 10.

FIG. 18 shows a double-cut type (D contact type) switch device. The switch device basically, the contacts having a common terminal 12 _1, 12 _2, switching devices 19, 19 and the coil spring 32, 32 two sets and the movable contacts 24 and oppositely disposed fixed contacts of each switching element, The configuration is such that two terminals 11 ₁ and 11 ₂ are used. For this reason, the terminal storage chambers 9 ₁ and 9 for individually storing each set of the contact terminal, the common terminal, the switching element and the coil spring.
_The body 1D formed with ₂ is used in place of the body 1B. In the example of FIG. 18, an operation handle 38b having one module size is used instead of the operation handle 38a.

FIG. 19 is an exploded perspective view of a three-way type (C contact type) switch device. FIG. 20 (a) is a front view, FIG. 20 (b) is a side view, and FIG. 20 (c) is a bottom view. 21 is a sectional view. In this switch device,
A lighting display unit 52 that lights up when a load (for example, an illumination load) that is turned on and off according to the contact state of the contact unit and is turned off to indicate the location of the switch device is incorporated in the inversion handle 30 and is drilled on the front surface of the inversion handle 30. The neon lamp 53 of the lighting display unit 52 faces the opened opening 34. The prism 55b has an elongated convex portion 62 having a flat tip that is inserted into the hole 54 of the operation handle 38b and the window hole 46 of the handle line 45a. With the 62 inserted, the prism 55b is swaged and fixed to the operation handle 38a. Thus, when the operation handle 38a is attached to the reversing handle 30, the incident surface 57 of the prism 55b is
The light emitted from the neon lamp 53, which is disposed to face the light source 3 and is incident from the incident surface 57, is refracted in the prism 55b and emitted to the outside through the convex portion 56, so that the position of the switch device can be displayed when the load is off. .

The switch body 10 has a through hole 5 at the center.
A circuit board 52d formed in a rectangular frame shape having 2e and having a neon lamp 53 and a resistor R mounted thereon is mounted. Contact portions are provided at both ends of the lower surface (non-mounting surface) of the circuit board 52d, and these contact portions are electrically connected to the neon lamp 53 and the resistor R on the circuit board 52d.

As shown in FIG. 19, contact terminals 58 and 60
Are provided so that the center pieces 58a and 60a face the circuit board 52d.
On one end side, a contact piece 58b facing the contact piece 15b and the contact piece 15c of the locking spring 15 protrudes, and from the other end side of the central piece 58a, one movable contact 24a of the opening / closing element 19 is provided. A substantially L-shaped terminal piece 58c provided with a fixed contact 59 provided at the tip thereof so as to be able to freely contact and separate from the terminal extends. On one end side of the center piece 60a of the other contact terminal 60, a contact piece 60b facing the contact piece 15b and the contact piece 15c of the locking spring 15 is projected, and is opened and closed from the other end side of the center piece 60a. A substantially L-shaped terminal piece 60c provided with a fixed contact 61 at the tip thereof, which comes into contact with the other movable contact 24b of the element 19 so as to freely contact and separate, extends. Then, the contact terminals 58, 6
Elastic contacts 63 and 64 are attached to the upper surfaces of the central pieces 58a and 60a, respectively.

The contacts 63 and 64 are in a mirror image relationship with each other, and are plate-shaped main pieces 63a and 64a, which are in contact with the central pieces 58a and 60a of the contact terminals 58 and 60, and main pieces 63a and 64a.
A substantially rectangular contact piece 63b, 64b extending from one end of the circuit board 52d and in contact with a contact portion of the circuit board 52d, and bent at both end edges of the main pieces 63a, 64a adjacent to the contact pieces 63b, 64b. The paired side pieces are integrally formed of a conductive plate material.

After the locking pieces provided on the side pieces of the contacts 63 and 64 are locked to the ends of the center pieces 58a and 60a of the contact terminals 58 and 60, the other side piece is connected to the center piece 58a. , 60a
, The locking claws provided on the side pieces abut against the edges of the central pieces 58a, 60a and are bent, and the tips of the locking claws eventually move the edges of the central pieces 58a, 60a. When the vehicle gets over, the locking claws are locked to the ends of the central pieces 58a, 60a, and the contacts 63, 64 are attached to the contact terminals 58, 60 and locked and fixed. As described above, since the fixing means for locking and fixing the contacts 63 and 64 to the contact terminals 58 and 60 is provided, the contacts 63 and 64 can be easily attached to the contact terminals and the assembling work can be simplified. There is an advantage that you can.

Here, a body C further provided with a partition for insulatingly housing the contact terminals 58 and 60 is used instead of the body 1B. A plurality of pressing ribs (not shown) project from the inner peripheral surface of the cover 2. When the body 1 </ b> B and the cover 2 are assembled to form the switch body 10, the pressing ribs are formed on the peripheral edge of the circuit board 52 d. And presses the circuit board 52d against the body 1 side.
As a result, the contact portions of the circuit board 52d and the contacts 63, 6
4 are resiliently contacted with the contact pieces 63b and 64b of the
8, 60 and the circuit board 52d are electrically connected, and when the load is turned off, power is supplied to the lighting display unit 52 via the contacts 63, 64, so that the neon lamp 53 is lit. Since the bar-shaped projection of the reversing handle 30 is inserted into the through hole 52e of the circuit board 52d, the circuit board 52d does not hinder the rotation of the reversing handle 30.

FIG. 22 shows a four-way type (E contact type) switch device. The switch device is basically common terminal 12 _1, 12 _2, switching devices 19, 19 and the coil spring 32 2 sets, one set of one surface and the other set of the switching elements of the switching element 19 one contact terminal 11 ₁ 'with each other face 19 oppositely disposed fixed contact points (not only the direction of the 61 _2), and the other one of the set of switching element 19 faces and one set has a contact terminal 11 ₂ 'with the other two fixed contacts are respectively arranged opposite to the surface of the switching element 19 (59 shown towards ₂₎ a configuration that one use. For this reason, a body 1E having terminal storage chambers 9 ₁ and 9 ₂ for insulatingly storing sets of contact terminals, common terminals, switching elements and coil springs is used.

According to these switch devices, operability can be improved. However, the dimensions on the body side of the switching element used in the switch device of the B and D contact type,
Since there is no difference in the body side dimensions of the switching element used in the C and E contact type switch device, the switching device of the B and D contact type switch device is erroneously used in the C and E contact type switch device. There was a risk. In this case, B,
Since the movable contact is provided only on one side of the switching element of the D-contact type switch device, it causes a contact failure.

The present invention has been made in view of the above circumstances, and is a switch capable of preventing a switching element having a single-section configuration or a double-section configuration from being erroneously used as a switching element having a three-way configuration or a four-way configuration. It is intended to provide a device.

[0036]

According to a first aspect of the present invention, there is provided a switch device comprising a box-shaped body having a rectangular opening and a body having a fixed contact. A contact terminal accommodated in one of the longitudinal directions, a common terminal having a plate-like support piece extending toward the contact terminal and accommodated in the other longitudinal direction of the body, and a support piece for the common terminal having a movable contact A plate-like opening / closing element having one end pressed as a swing fulcrum, a box-shaped opening / closing element having a swinging projection on both sides, and a reversing handle provided at the other end of the switching element; A coil spring interposed between the other end of the opening / closing element and a cover formed in a frame shape having grooves for receiving both projections of the reversing handle in a swingable manner and attached to the opening side of the body. And a part protrudes from this cover An operation handle attached to the rotation handle, swinging the opening / closing element via the reversing handle and the coil spring in response to the swing operation, and bringing the movable contact into and out of contact with the fixed contact of the contact terminal. One set of an element and a coil spring, a single-cut configuration using one contact terminal having a fixed contact opposed to one surface of the switching element, two sets of a common terminal, an opening and closing element and a coil spring, and A double-cut configuration in which two contact terminals each having a fixed contact disposed opposite to one surface of the switching element are used. While the switching element having the same structure in which the movable contact is provided on one surface is used, the common terminal and the switching element are used. One set of an element and a coil spring, one contact terminal having a fixed contact arranged opposite to one surface of the switching element, and fixed arranged opposite to the other surface of the switching element A three-path configuration using one contact terminal having a point, two sets of a common terminal, an opening / closing element and a coil spring, each on one surface of one of the opening / closing elements and the other side of the other set of the opening / closing elements One contact terminal having two fixed contacts arranged opposite to each other, and a contact terminal having two fixed contacts arranged oppositely to one surface of the other set of switching elements and the other surface of one set of switching elements. And a four-way configuration using one, using a switching element of the same structure with movable contacts provided on both sides, and a width dimension at one end of the switching element with movable contacts provided on one side It is characterized in that it is wider than that of the provided switching element.

According to a second aspect of the present invention, in the switch device according to the first aspect, the opening / closing element having the movable contact on one side has a reverse assembly preventing rib formed on one side, and the body has the opening / closing element. Is stored in the proper condition,
A groove for receiving the reverse assembly preventing rib is formed only on the side where the reverse assembly preventing rib is located.

[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the switch device of the present invention will be described below. However, the same components as those of the switch device described with reference to FIGS. 15 to 22 are denoted by the same reference numerals, and description thereof is omitted.

FIG. 1A is a plan view of an opening and closing element used in a B and D contact type switch device, and FIG. 1B is a plan view of an opening and closing element used in a C and E contact type switch device. 2 (a) and 2 (b) are perspective views showing the switching element and the like in FIG. 1 (a).

First, a switch device using the switching element shown in FIGS. 1 and 2 will be described. FIG. 3 is a perspective view, FIG. 4 (a) is a front view, and FIG. 4 () is a side view of a long side of a switch device of the B contact type using the switching element 19BD of FIGS. FIG. 4B shows a side view of the short side in FIG.
FIG. 5 shows a cross-sectional view. Here, the operation handle 38c
The operation handle 38c has a hole 38 for the convex portion 56 of the prism 55a.
1 and locking claw pieces 39, 40 for attaching to the reversing handle 30 are formed on the rear side as shown in FIG. Since the switching element 19BD is formed in a plate shape, the supporting piece 23 of the common terminal 12 is provided with a fulcrum projection 22.
Instead, a fulcrum groove 22 'is formed.

FIG. 6 is a perspective view of a D-contact type switch device using the switching element 19BD shown in FIGS.
FIG. 7A is a front view, and FIG.
FIG. 7B shows a side view of the short side, and FIG. 8 shows a cross-sectional view. Here, as the operation handle 38b, one having a module size is used, and the operation handle 38b is used.
Has a projection 382, and locking claw pieces 39, 40 and the like for attaching to the reversing handle 30 are formed on the rear side as shown in FIG. Also, in relation to the opening and closing device 19BD is formed in a plate shape, the common terminal 12 _1, 12 ₂ of the support piece 23, the fulcrum grooves 22 in place of the fulcrum projection 22 'is formed.

On the other hand, FIG. 6 is a perspective view of a C-contact type switch device using the switching element 19CE of FIG. 1B.
FIG. 7A is a front view, and FIG.
FIG. 7B shows a side view of the short side, and FIG. 8 shows a cross-sectional view. Here, since the switching element 19CE is formed in a plate shape, the supporting piece 23 of the common terminal 12 has
A fulcrum groove 22 'is formed instead of 2.

FIG. 12 is a perspective view of an E-contact type switch device using the switching element 19CE of FIG. 1B, FIG. 13A is a front view thereof, and FIG. b)
FIG. 13C is a side view of the short side, and FIG.
Shown in Here, in relation to the opening and closing device 19CE is formed in a plate shape, the common terminal 12 _1, 12 ₂ of the support piece 23, the fulcrum grooves 22 in place of the fulcrum projection 22 'is formed.

In short, the switch device of the B, D, C, and E contacts has a box-shaped body (1B, 1D, 1C, 1E) having a rectangular opening, and a body having fixed contacts. Contact terminals (11, 1) housed in one of the longitudinal directions
1 ₁ and 11 _2, 58 and 60,11 ₁ 'and 11
₂ ') and a common terminal (12, 1) having a plate-shaped support piece extending toward the contact terminal and housed in the other longitudinal direction of the body.
21 ₁ and 12 ₂ , 12, 12 ₁ and 12 ₂ ), and a plate-shaped switching element (19BD, 19BD, 1) having a movable contact and having one end as a swing fulcrum pressed against a support piece of the common terminal.
9CE, 19CE), a reversing handle (30, 30, 30, 30) formed in a box shape having swing projections on both sides thereof and provided on the other end side of the opening / closing element; Coil spring (32, 32 and 32, 32, 32 and 32) interposed between the other end
A cover (2, 2, 2, 2) which is formed in a frame shape having a groove in which both projections of the reversing handle are swingably accommodated and which is attached to the opening side of the body; An operation handle (38c, 38b) that is attached to a reversing handle with a protruding portion, and swings the opening / closing element via the reversing handle and the coil spring in accordance with the swinging operation, and moves / moves the movable contact to / from the fixed contact of the contact terminal , 38c,
38c), and the locking spring 1 for quick connection.
5 and a release button 17.

In the present embodiment, one set of common terminals 12,
A B-contact type configuration using the switching element 19BD and the coil spring 32, and one contact terminal 11 having a fixed contact 21 disposed opposite to one surface (the surface on the contact terminal side in the figure) of the switching element 19BD. And two sets of contact terminals having two sets of common terminals 12 ₁ , 12 ₂ , switching elements 19BD, 19BD, coil springs 32, 32, and fixed contacts 21 disposed on one surface of each switching element 19BD. With a D-contact type configuration using 11 ₁ and 11 ₂ , a switching element 19BD having the same structure and having a movable contact 24 provided on one side is used. Thus, it is not necessary to separately prepare switching elements for the B contact type and the D contact type, and the number of components can be reduced.

On the other hand, one set of the common terminal 12, the switching element 19CE and the coil spring 32, and the switching element 32
C using one contact terminal 58 having a fixed contact 59 arranged opposite to one surface of the switching element 32 and one contact terminal 60 having a fixed contact 61 arranged opposite to the other surface of the switching element 32. A contact type configuration and two sets of common terminals 12 ₁ ,
12 ₂ , switching elements 19CE, 19CE and coil springs 32, 32, and fixed contacts 61 ₁ , disposed opposite to one face of one set of switching elements 19CE and the other face of switching element 10CE of the other set, respectively. One contact terminal 11 ₁ ′ having a contact element 61 ₂ and the other set of the switching element 19
Fixed contacts 59 ₁ , 59 ₂ disposed to face one surface of CE and the other surface of one set of switching elements 19CE, respectively.
And an E-contact type configuration using one contact terminal 11 ₂ ′ having the same structure, the switching element 19CE having the same structure in which the movable contacts 24a and 24b are provided on both surfaces is used. Accordingly, it is not necessary to separately prepare switching elements for the C contact type and the E contact type, and the number of components can be reduced.

As shown in FIG. 1, the width of the switching element 19BD provided with the movable contact 24 on one side is the width of the switching element 19CE provided with the movable contacts 24a and 24b on both sides. (L1>
L2). In addition, grooves 1 each having a width substantially equal to the width of the opening / closing element 19BD on the swing fulcrum side are formed in the bodies 1B and 1D.
While grooves 1B and 11D are formed, grooves 11C and 11E having a width almost equal to the width of the opening / closing element 19CE on the swing fulcrum side are formed in the bodies 1C and 1E. This allows
B, D contact type switching element 19BD is connected to the body 1C, 1
Since the switching element 19BD of the B contact type or the D contact type can be prevented from being erroneously used as the switching element of the C contact type or the E contact type because the switching element 19BD cannot be housed in the E, the production defect can be eliminated. Can be.

Further, in this embodiment, as shown in FIG. 2, a switching element 19BD having a movable contact 24 provided on one side is provided.
The reverse assembly prevention rib 191 is formed on one side surface, and when the opening / closing element 19BD is housed in an appropriate state in the bodies 1B and 1D, the reverse assembly prevention rib 191 is provided only on the side where the reverse assembly prevention rib 191 is located. Groove 1bd into which assembling prevention rib 191 enters
(A reverse assembly prevention structure) is formed. Therefore, FIG.
As shown in (b), the movable contact 24 is turned in the opposite direction and the switching element 19 is turned on.
Even if the BD is to be stored in the body 1B, 1D, the groove 1 of the body 1B, 1D
The opening / closing element 19BD cannot be inserted into 1B and 11d. Thus, reverse assembly of the switching element 19BD to the bodies 1B and 1D can be prevented, and defects in the manufacturing process can be reduced. In addition, since the reverse assembly prevention structure on the body side serves as a guide for assembling the opening / closing element in the manufacturing process, manufacturing is facilitated.

Note that, since the opening / closing elements 19BD and 19CE are formed in a plate shape, a projection 192 having a narrower one-step width for fitting into the coil spring 32 is formed on the other end side.

[0050]

As is apparent from the above description, according to the first aspect of the present invention, a box-shaped body having a rectangular opening and a fixed contact are provided in the longitudinal direction of the body. A contact terminal housed in one side, a common terminal having a plate-like support piece extending toward the contact terminal and housed in the other side in the longitudinal direction of the body, and a movable contact swinging to the support piece of the common terminal A plate-like opening / closing element to which one end as a fulcrum is pressed,
A reversing handle formed on the other end of the opening / closing element formed in a box shape having a swinging projection on both sides of the outside, a coil spring interposed between the reversing handle and the other end of the switching element, A cover is formed in a frame shape having both grooves on both sides of the handle so as to be swingably accommodated, and is attached to the opening side of the body, and is attached to a reversing handle part of which protrudes from the cover, and swings. An operation handle for swinging the opening / closing element via the reversing handle and the coil spring in accordance with the operation to move the movable contact to and away from the fixed contact of the contact terminal, and a set of a common terminal, the opening / closing element and the coil spring, Then, a single-cut configuration using one contact terminal having a fixed contact opposed to one surface of the switching element, two sets of a common terminal, a switching element and a coil spring, and The contact terminals having oppositely disposed fixed contact on one surface of 閉素Ko between both switching arrangement for using 2
While using a switching element of the same structure in which a movable contact is provided on one side, one set of a common terminal, a switching element, and a coil spring, and one contact terminal having a fixed contact opposed to one surface of the switching element And a three-path configuration using one contact terminal having a fixed contact opposed to the other surface of the switching element, and two sets of the common terminal, the switching element, and the coil spring. One contact terminal having both fixed contacts disposed opposite to each other on the surface and the other surface of the other set of switching elements, and one surface of the other set of switching elements and the other of the other set of switching elements. With a four-path configuration using one contact terminal having both fixed contacts disposed opposite to each other on the surface, a switching element having the same structure with movable contacts provided on both surfaces is used, and the movable contact is provided on one surface. Switching element The width at one end is wider than that of the switching element provided with movable contacts on both sides. Therefore, the switching element in a single-cut or double-cut configuration should be housed in a three- or four-path body. Therefore, it is possible to prevent the switching element having the single-cut configuration or the double-cut configuration from being erroneously used as the switching element having the three-way configuration or the four-way configuration.

According to the second aspect of the present invention, in the switch device according to the first aspect, the opening / closing element having the movable contact on one side has a reverse assembly preventing rib formed on one side.
When the opening and closing element is housed in the proper state, the groove is formed only on the side where the reverse assembling prevention rib is located. Even if an attempt is made to store in the body, the opening and closing element cannot be inserted into the body due to the interference of the reverse assembling prevention ribs. Thereby, reverse assembly of the switching element to the body can be prevented.

[Brief description of the drawings]

FIG. 1A is a plan view of an opening and closing element used in a B and D contact type switch device, and FIG. 1B is a plan view of an opening and closing element used in a C and E contact type switch device.

FIGS. 2A and 2B are perspective views showing an opening / closing element and the like in FIG. 1A.

FIG. 3 is a perspective view of a B-contact type switch device using the switching elements of FIGS. 1 (a) and 2;

4A, 4B, and 4C are a front view, a long side view, and a short side view of a B-contact type switch device, respectively.

FIG. 5 is a cross-sectional view of a B-contact type switch device.

FIG. 6 is a perspective view of a D-contact type switch device using the switching elements of FIGS. 1 (a) and 2;

FIGS. 7A, 7B, and 7C are a front view, a long side view, and a short side view of a D-contact type switch device, respectively.

FIG. 8 is a sectional view of a D-contact type switch device.

FIG. 9 is a perspective view of a C-contact type switch device using the switching element of FIG. 1 (b).

FIGS. 10A, 10B, and 10C are a front view, a long side view, and a short side view of a C-contact type switch device, respectively.

FIG. 11 is a cross-sectional view of a C-contact type switch device.

FIG. 12 is a perspective view of an E-contact type switch device using the switching element of FIG. 1 (b).

FIGS. 13 (a), (b) and (c) are a front view, a long side view and a short side view of an E-contact type switch device, respectively.

FIG. 14 is a sectional view of an E-contact type switch device.

FIG. 15 is an exploded perspective view of the switch device.

16 (a), (b) and (c) are a front view, a side view and a bottom view of the switch device of FIG. 15, respectively.

17 is a cross-sectional view of the switch device of FIG.

FIG. 18 is an exploded perspective view of another switch device.

FIG. 19 is an exploded perspective view of another switch device.

20 (a), (b) and (c) are a front view, a side view and a bottom view of the switch device of FIG. 19, respectively.

FIG. 21 is a sectional view of the switch device of FIG. 19;

FIG. 22 is an exploded perspective view of another switch device.

[Explanation of symbols]

1B, 1D, 1C, 1E Body 11, 11 ₁ , 11 ₂ , 58, 60, 11 ₁ ′, 11 ₂ ′
Contact terminals 12, 12 _1, 12 _2, a common terminal 19BD, 19CE switching element 30 turning handle 32 the coil spring 2 covers 38b, 38c operating handle

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Kutsuna 1048 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. Inventor Hiroyuki Tateishi 1048 Kazuma Kadoma, Kazuma City, Osaka Prefecture Inside Matsushita Electric Works Co., Ltd. 1285 Gomono, Misato-mura, Aki-gun, Mie Prefecture F-term in Hayama Denki Mfg. Co., Ltd. 5G035 AA09 CA01 CB04 DA07 JA01 JB02

Claims (2)

[Claims] 1. A box-shaped body having a rectangular opening, a contact terminal having fixed contacts and housed in one longitudinal direction of the body, and a plate-shaped support extending toward the contact terminal. A common terminal housed in the other side of the body in the longitudinal direction, a plate-shaped opening / closing element having a movable contact and being pressed against one end as a swing fulcrum on a support piece of the common terminal, and a swing projection A reversing handle formed on the other end of the opening and closing element formed in a box shape having an external measurement, a coil spring interposed between the reversing handle and the other end of the switching element,
A cover is formed in a frame shape having a groove in which both projections of the reversing handle are swingably accommodated, and is attached to the opening side of the body, and a reversing handle partly projecting from the cover is attached to the reversing handle. An operating handle for swinging the opening / closing element via a reversing handle and a coil spring in accordance with a moving operation, and bringing the movable contact into and out of contact with the fixed contact of the contact terminal; a set of a common terminal, an opening / closing element and a coil spring ,
Then, a single-cut configuration using one contact terminal having a fixed contact arranged facing one surface of the switching element, two sets of a common terminal, a switching element and a coil spring, and facing one surface of each switching element With a double-cut configuration using two contact terminals having arranged fixed contacts, a movable contact uses a switching element of the same structure provided on one side, while a common terminal, a switching element and a coil spring are used as one set,
Common to a three-path configuration using one contact terminal having a fixed contact opposed to one surface of the switching element and one contact terminal having a fixed contact opposed to the other surface of the switching element. Two sets of terminals, a switching element and a coil spring, one contact terminal having both fixed contacts respectively opposed to one surface of one of the switching elements and the other surface of the other of the switching elements, and A four-path configuration in which one contact terminal having both fixed contacts disposed opposite to one surface of the other set of switching elements and the other surface of one set of switching elements is used. Using the same type of switching element provided, the width dimension at one end of the switching element with movable contacts on one side is wider than that of the switching element with movable contacts on both sides. Characteristic switch device. 2. An opening / closing element provided with a movable contact on one side has a reverse assembling prevention rib formed on one side surface. When the switching element is housed in a proper state in the body, the reverse assembling prevention rib is provided. 2. The switch device according to claim 1, wherein a groove for receiving the reverse assembling prevention rib is formed only on the side where is located.