JP2858871B2 - Piano handle switch - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a structure of a piano handle switch.

[Prior Art] A wave switch is conventionally used in a switch rated at 300 V and 1.5 A generally used in houses and the like.

[Problems to be Solved by the Invention] Since the conventional wave switch has problems in operability and design, there is a demand for the development of a push-button type which is not related to the position of the handle when turning on and off the switch. . And in the conventional pushbutton switch conversion method to switch inversion operation, the embedding depth becomes deep,
There are problems such as poor workability, and the push-button switch has good operability as compared with the wave switch, but cannot be operated with a light touch, and it is hard to say that the operability is sufficiently good.

The present invention has been made in view of the above-mentioned conventional problems, and the object thereof is to perform a simple and operable switch operation with a light piano touch operation.
By turning it off, the steady position of the piano handle does not change and there is no unevenness on the handle surface, and the appearance can be improved, and a mechanism that opens and closes the contact part by the pushing movement of the push button handle can be achieved with a simple configuration and the appearance is good In addition, the opening and closing performance can be reduced to the same level as that of the conventional wave switch, and the contact portion can be opened and closed by operating the opening and closing body by the reversing rotation of the reversing handle via the coil spring. Regardless, it is an object of the present invention to provide a piano handle switch which can be forcibly detached even when a contact portion is welded.

[Means for Solving the Problems] A piano handle switch according to the present invention includes an opening / closing body rotatably supported in a body and opening and closing a contact portion, and a head exposed from the surface of the body. A push button handle movably mounted in a body perpendicular to the surface, a reversing handle for reversing the opening and closing body in conjunction with the pushing of the push button handle, and a push button handle for urging the push button handle in a front exposure direction. A push-button switch comprising a return means, a pivot handle rotatably supported on one side by the outside of the push-button switch, and a piano handle having a rear surface in contact with the head of the push-button handle. The shaft provided on both sides is rotatably attached to a bearing provided on the inner wall of the container, and the above-described object of the present invention has been achieved by adopting such a configuration. Things.

[Operation] According to the present invention, the push button handle is pushed down by pushing down the other end of the piano handle with one end portion serving as a fulcrum, and the inversion handle is inverted in conjunction with the lowering of the push button handle. The opening / closing body is inverted by being moved, whereby the contact portion is opened / closed. By operating the piano handle with a piano touch, the contact opening / closing operation can be performed. Further, when the depression of the piano handle is released, the push button handle returns by the return means and is pushed by the push button handle, and the other end of the piano handle rises and returns to the initial position.
By turning it off, the steady position of the piano handle does not change and the unevenness of the handle surface disappears. In addition, a reversing handle for reversing the opening / closing body is rotatably mounted on shafts provided on both sides of the reversing handle on bearings provided on the inner wall of the body, so that a simple structure and accurate position can be achieved. It can support the reversing handle reversibly,
The operation of the opening / closing body can be performed reliably and accurately.

EXAMPLES The present invention will be described below in detail based on examples shown in the accompanying drawings.

The push button switch 5 shown in FIG. 1 is a synthetic resin body 5a.
And a cover 5b made of synthetic resin to form a body, and a body locking leg hanging down from a pair of opposite sides of the cover 5b.
The body engagement hole 10a provided in the body 10 is engaged with the engagement protrusion 9 of the body 5a. The push button switch 5 is formed in a size of one module of a standardized wiring device.

The locking claws 11a, 11b corresponding to the locking holes 8 formed on the longitudinal sides of the both sides 2b, 2b of the mounting frame 2 on both sides of the cover 5b.
Respectively, and a cover 5 is provided on the back of one of the locking claws 11b.
A space 12 for obtaining a bending allowance formed by a hole vertically penetrating the outer wall of b is formed, so that the locking claw 11b can be flexed elastically backward. A locking projection 70 is provided on one end side of the upper portion of the cover 5b, and a fulcrum projection 71 protrudes slightly inside the locking projection 70. Has a hole 72 at the other end thereof, and an opening edge of the hole 72 is a locking edge 72a.

Connection terminal housings 13 and 14 are formed on both sides of the body 5a, and one connection terminal housing 13 has a common terminal plate 15, a locking spring 16,
A connection terminal comprising a release button 17 is housed, and the other connection terminal housing portion 14 has a terminal plate 18 and a locking spring 19 constituting a first connection terminal, and a terminal plate constituting a second connection terminal. 20, a lock spring 21 is housed, and a common release button 22 is housed in the first and second connection terminals.

The terminal plate 18 is provided with an extension piece 18a.
Reference numeral 8a extends over the partition wall 14a and extends into the central storage portion 23, and further close to the partition wall 14a side. The extension piece 18a is provided with a fixed contact 25a.

The terminal plate 20 is located along the inner wall of the body 5a.
The fixed contact 25b corresponding to the fixed contact 25a is provided at the front end of the bent piece 20a.

The opening / closing body 24 is formed of a conductive plate,
The projection 28 provided at the lower end of both ends is
It is rotatable around the lower part of the V-shaped recess 27 with the lower end edge being in contact with the support plate 15a while being fitted into the V-shaped recess 27 provided on the side wall of the V-shaped recess 27. Then, the movable contact 29 provided on both upper surfaces of the opening / closing body 24 contacts and separates from the fixed contacts 25a and 25b according to the rotation, and the common connection terminal portion and the first or second connection terminal portion Between the on and off.

The coil spring 30 drives the opening / closing body 24 in reverse.
And a reversing mechanism including a reversing handle 31, a push button handle 32, a slide cam 33, and the like.

The lower portion of the coil spring 30 is locked by a spring seat 24a provided at the upper edge of the horizontal piece of the opening / closing body 24, and the upper portion is
The opening / closing member 24 is inserted into a cylindrical portion 31a integrally protruding from the lower portion of the opening 1 to invert the opening / closing body 24 in accordance with the movement of the inversion handle 31 in both directions. Here the reversing handle 31
As shown in FIG. 4, a coil spring locking projection 31e is provided at the back of the cylindrical portion 31a to lock the upper end of the coil spring 30.

The reversing handle 31 has a shape as shown in FIG. 4, and the reversing handle 31 is inserted into the recess 51 from below into the hole 52 opened at the bottom of the recess 51 of the cover 5b. An inverted triangular shaft 31c provided on both sides of the cylindrical portion 31a
Is rotatably supported on a bearing 50 on the inner wall of the cover 5b. Here, the reversing angle of the reversing handle 31 can be determined from the angle of the triangle of the inverted triangular axis 31c. Engagement projections 34, 34 which engage with the slide cam 33 are protruded from upper portions on both sides of the rectangular parallelepiped portion 31 b on the upper portion of the reversing handle 31. In addition, a forked groove portion is provided at the lower portion of the reversing handle 31 to form a to-be-removed engaging portion 31d,
A trip engagement portion 24d provided on the upper portion of the opening / closing body 24 is loosely fitted. The tripping engagement portion 24d and the tripping engagement portion 31d constitute forcible tripping means for forcibly releasing the contact when the contact portion is welded. In addition, below the engaging projection 34 of the reversing handle 31, there is provided a falling-off preventing portion 31f for preventing the reversing handle 31 from falling downward when the reversing handle 31 is inserted into the concave portion 51 of the cover 5b from above.

The push button handle 32 is housed in the recess 51 so as to be able to move up and down by locking the locking projections 36 and 36 in the vertical locking grooves 35 formed on the inner wall surfaces on both sides of the recess 51 of the cover 5b, Flat 37
A return spring 37, which is formed by integrally extending two return spring pieces 37a, 37a extending downward from b, is provided on the lower surface of the push button handle 32 in a hole 37d formed in the flat piece 37b. By inserting a projection (not shown), it is attached to the lower surface of the push button handle 32, and is constantly biased upward by elastically contacting the tip of the return spring piece 37 a, 37 a of the return spring 37 with the bottom surface of the recess 51.

The slide cam 33 is formed in a substantially rectangular shape by a thermoplastic resin having a high elasticity such as polyacetal, and a hooking cam body 38 corresponding to the hooking projection 34 of the reversing handle 31 projects on the lower surface of the opposing side portion. And a pair of spring pieces 33a, 33a integrally protruding in a C-shape at the center of another side portion,
A projection 32A formed on the lower surface of the push button handle 32 is inserted between the distal ends of the spring pieces 33a, 33a, and the slide cam 33 is slidably mounted on the lower surface of the push button handle 32.
A return force in the anti-sliding direction is given by the elasticity of the wires 33a.

The push button switch 5 configured as described above covers the lower end of the vertical side of one side piece 2b of the mounting frame 2 by fitting the cover 5b from below into the window hole 6 of the metal mounting frame 2 shown in FIG.
If the contact point is rotated with the contact point as a fulcrum in a state of contact with the upper peripheral surface of 5b, the locking claw 11a on the fulcrum side engages with the locking hole 8, and
The lower end of the vertical side of the other side piece 2b pushes the locking claw 11b inward by the bending allowance of the space 12 and the elastic force of the material of the cover 5b to get over the locking claw 11b and engage the locking claw 11b. Engage the stop hole 8. The push button switch 5 locked with the locking claws 11a and 11b engaged with the locking holes 8 and 8, respectively, causes the push button handle 32 to protrude from the window hole 6 of the mounting frame 2.

The push button switch 5 attached to the attachment frame 2 in this manner is provided with a piano handle 43. This piano handle
Reference numeral 43 is as shown in FIG. 3, in which a locking foot 43a provided on one side edge of the piano handle 43 is locked to the locking projection 70 of the cover 5b, and the fulcrum projection 71 of the piano handle 43 With the lower surface in contact, the locking foot 43b on the other side edge of the piano handle 43 is vertically movably inserted into the hole 72 at the other end of the cover 5b, and the locking portion of the locking foot 43b is inserted into the hole 72. Is locked to the locking edge 72a. When the locking feet 43a and 43b are released, the piano handle 43 can be removed. With the piano handle 43 immersed as described above, the push button handle 32 can be pushed and driven by pushing and rotating the piano handle 43. Then, in this state, the semicircular projection 73 on the upper surface of the push button handle 32 is
It hits the underside of 43. Here, the fulcrum projection 71 may be provided on the lower surface of the piano handle 43 instead of the fulcrum projection 71 provided on the lower surface of the cover 5b.

Next, the operation of the piano handle switch of the present invention will be described with reference to FIGS.

First, in the state shown in FIG.
When the piano handle 43 is omitted in the figure), the push button handle 32 is pushed down against the spring piece 37a, and the slide cam 33 is pushed by pushing down the push button handle 32.
Is lowered, and the upper side of the reversing handle 31 (FIG. 5 (FIG. 5 (b)) is in a state where the base of the inside inclined surface of the engaging cam body 38 at one end of the slide cam 33 (left side in FIG. When the push button handle 32 is further pressed, the hooking projection 34 is pushed down along the inner inclined surface of the hooking cam body 38, and the reversing handle 31 is pressed. Rotates reversely as shown in FIGS. 7 (b) to 9 (b). By the way, when one engaging cam body 38 of the slide cam 33 slides while engaging with one engaging protrusion 34 of the reversing handle 31, the other engaging cam body 38 is rotated before the reversing handle 31 that rotates reversibly becomes horizontal. The length between the pair of engaging cam bodies 38 and the length between the pair of engaging projections 34 are set so as to move and be positioned inside the other engaging projection 34.
With the above-described configuration, the engagement protrusion 34 is moved to the fifth position in accordance with the inversion of the inversion handle 31 due to the depression of the push button handle 32.
Figure (b), Figure 6 (b) → Figure 7 (b) → Figure 8 (b)
→ As shown in FIG. 9 (b), it turns counterclockwise, and with this turning, the engaging cam body 38 is opposed to the spring piece 33a by the engaging projection 34, and FIGS. 5 (a) and 6 (A) → FIG. 7 (a) → FIG. 8 (a) → Slide to the left as shown in FIG. 9 (a), and in the course of inversion of the inversion handle 32 as shown in FIG. 8 (b). Even if the reversing handle 32 is rotated to a position beyond the horizontal and the other engaging projection 34 is raised, the slide cam 33 is slid to the left so that the other end (the right in FIG. 7B) Is located on the left side of the right engagement protrusion 34 so that the rotation of the inversion handle 31 is not hindered. Here, FIG. 4, FIG.
As shown in the drawing, when the inner inclined surface 31g is formed inside the engaging projection 34 and the concave groove 31h is formed at the base of the engaging projection 34,
When the engaging projection 34 rotates upward, the engaging cam body 38 located inside can escape from the inner inclined surface 31g and the concave groove portion 31h so as not to interfere. Also, push button handle as described above
In turning the reversing handle 31 in reverse by pushing down the 32, the reversing handle 31 is inverted by sliding the slide cam 33 against the spring piece 33a.
The slide cam 33 and the slide cam 33 can smoothly turn the reversing handle 31 in reverse without receiving sliding frictional resistance.

When the reversing handle 31 is reversingly rotated as described above, the coil spring 30 reciprocates and swings, and the opening / closing body 24 is reversed,
The movable contact 29 is separated from the one fixed contact 25a with which the movable contact 29 is in contact, and comes into contact with the other fixed contact 25b.

When the pressing force of the piano handle 43 is released after the inversion, the push button handle 32 is pushed up by the spring piece 37a of the return spring 37 as shown in FIG. 10 (b), and the piano handle 43 also returns to the original state. . At the same time, the slide cam 33 slides and returns to the central portion by the spring force of the spring piece 33a, and FIG. 10 (a)
It becomes as shown in. If the piano handle 43 is pressed down in this state, the opening / closing body 24 can be inverted by the same operation as described above. After the inversion, if the pressing force of the piano handle 43 is released, the state returns to the state shown in FIG.

By the way, the on / off switching of the contact portion is performed as described above. If the contact portion is welded, the coil spring is turned by the inversion rotation of the inversion handle 31.
There is a case where the coil spring 30 is merely bent and cannot be reversed and the contact portion cannot be separated by simply rotating the opening / closing body 24 through the lever 30. In such a case, the reversing handle 31 is used. Turns the coil spring
When 30 bends, the engagement portion 31d for pulling off the reversing handle 31
Touches the tripping engagement portion 24d in the loosely-fitting relationship, and forcibly rotates the opening / closing body 24 to trip the contact portion.

In the embodiment shown in FIG. 3, the mounting frame 2 is formed to have dimensions (three modules) for three standardized wiring devices. In the embodiment shown in FIG. One push button switch 5 of one module is mounted on the mounting frame 2 shown, and one piano handle 43 of three module size is mounted on the mounting frame 2 of three modules. The switch 5 is operated, but as shown in FIG.
May be mounted on the mounting frame 2 and two piano handles 43 each having a size of 1.5 modules may be mounted. Alternatively, as shown in FIG. May be attached. In this embodiment, as shown in FIG. 13, when the central piano handle 43 is pushed, the piano handles 43 on both sides can be pushed at the same time, and the piano handles 43 on both sides may be pushed alone. . In addition, as shown in FIG.
Two piano handles 43 each having a size of 1.5 modules may be attached, and one two-module piano handle 43 may be attached next to the piano handles. 14 (a) and 14 (b)
In (c), K is a decorative frame, which covers the mounting frame 2.

[Effects of the Invention] As described above, the present invention provides an opening / closing body which is rotatably supported in a body and opens and closes a contact portion, and a head is exposed from the surface of the body and is orthogonal to the exposed surface. A push button handle movably mounted in the body, a reversing handle for reversing the open / close body in conjunction with the pushing of the push button handle, and return means for urging the push button handle in a forward exposure direction. A push-button switch, a pivot handle rotatably supported on one side by the outside of the push-button switch, and a piano handle having a back surface in contact with the head of the push-button handle, and shafts provided on both sides of the reversing handle. Is rotatably mounted on the bearing provided on the inner wall of the body, so that the contacts can be easily switched with a light touch by operating the piano handle by piano touch operation, improving operability. Yes, and also piano han When the pressing down of the dollar is released, the push button handle is returned by the return means, pushed by the push button handle, the other end side of the piano handle rises and returns to the initial position,
By turning on and off, the normal position of the piano handle does not change, the unevenness of the handle surface is eliminated, and the appearance is improved, and the reversing handle for reversing the opening and closing body is provided with a shaft provided on both sides of the reversing handle. By being rotatably attached to a bearing provided on the inner wall of the body, the reversing handle can be supported in a simple configuration and at an accurate position so that the reversing handle can be freely reversed. It can be performed with high accuracy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a push button switch according to an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are cross-sectional views before and after pressing the piano handle of the same. 3 (a) is an exploded perspective view showing a push button switch, a mounting frame, and a piano handle, FIG. 3 (b) is a perspective view seen from the back of the piano handle, and FIGS. 4 (a), (b), and (c). Is a plan view of the reversing handle, a partially cutaway front view and a side view, FIGS. 5 (a) (b), 6 (a) (b), and 7 (a).
(B), FIG. 8 (a) (b), FIG. 9 (a) (b), FIG.
FIGS. 10 (a) and 10 (b) are explanatory diagrams showing the operation sequence showing the relationship between the slide cam and the projection, and FIGS. 11 (a) (b) and 12 (a), respectively. ) (B),
13 (a) and 13 (b) are an exploded view and a plan view of each embodiment showing the number of push-button switches and the number of piano handles mounted on the mounting frame, respectively. FIGS. 14 (a) and (b) are decorative frames. Plan view and side view of an embodiment showing an example in which
FIG. 15C is a plan view of another embodiment, and FIG. 15 is an explanatory view of the embodiment in a state where the inside of the engaging projection is inclined. 5 is a push button switch, 24 is an opening / closing body, and 24 d is a tripping. Engagement part, 30
Is a coil spring, 31 is a reversing handle, 31d is an engagement portion for removal, 32 is a push button handle, 33 is a slide cam,
34 is a hooking projection, 38 is a hooking cam body, and 43 is a piano handle.

Claims (1)

(57) [Claims] An opening / closing body rotatably supported in a body for opening and closing a contact portion, a body being exposed from a surface of the body and being movable in a direction perpendicular to the exposed surface. A pushbutton switch comprising: a pushbutton handle attached to the pushbutton handle; a reversing handle for reversing the opening / closing body in conjunction with the pushing of the pushbutton handle; and a return means for urging the pushbutton handle in a forward exposure direction. A piano handle with one side movably pivoted outside the push button switch and the back side abutted against the head of the band button handle is provided, and axes provided on both sides of the above-mentioned reversing handle are provided on the inner wall of the body A piano handle switch, which is rotatably mounted on a bearing.