JPH0422028A - Piano handle type switch - Google Patents

Abstract

PURPOSE:To ensure the switching of a contact by loosely fitting an engaging part for tripping and an engaging part for being tripped together at the time of normal ON/OFF changing over, and by putting the tripping part loosely fitted on the engaging part for being tripped, at the time of welding a contact part, so as to forcibly carry out the tripping. CONSTITUTION:Since a return elastic body provided with a slide cam 33 with return force, is used, when the pressing force of a push button handle 32 is released, and the push button handle 32 is moved upward, so as to release the hooking of a hook protrusion 34 on a hook cam body 38, the slide cam 33 is automatically returned to the initial position on the center of the lower surface of the push button handle 32. The normal ON/OFF switching is carried out by rotating and operating a switch body 24 through a coil spring 30 through the reverse rotation of an reversing handle 31, and when a contact part is welded, an engaging part 24d for tripping loosely fitting is put on an engaging part 31d to be tripped, and the tripping is forcibly carried out. The switching of a contact can thus be ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to the structure of a via/handle type switch.

[Prior art] 300V, 1.5A commonly used in houses, etc.
Conventionally, wave switches have been used for rated switches.

[Problem to be Solved by the Invention 1] Conventional wave switches have problems in operability and design, so it is desired to develop a push-button type switch that does not depend on the handle position for turning on and off the switch. In the case of conventional push button switches, the method of converting to the swing/thousand reversal operation requires a deep embedding depth, resulting in problems such as poor workability.

The present invention has been made in view of the above-mentioned problems, and aims to be easy to operate with via/touch operations, have a good appearance, be thin, and have opening/closing performance compared to conventional wave switches. In addition, even if the contact is welded even though the opening/closing body is operated by the reversing rotational movement of the reversing handle via the fill spring, the contact can be forcibly pulled. Provides a piano handle type switch that can be removed.

[[! Means for Solving the Problem 1 The via/handle type switch of the present invention includes an opening/closing body 24 that is rotatably supported within a housing body and opens and closes a contact portion, and a head portion that is exposed from the surface of the housing body. A push button handle 32 is mounted inside the container so as to be movable in a direction perpendicular to the surface, a reversing means for reversing the opening/closing body 24 once in conjunction with the push of the push button handle 32, and an i in the container. The push-button switch 5 is equipped with a return means for biasing the push-button handle 32 in the correct exposure direction; In a piano handle type switch consisting of a piano handle 43 that is brought into contact with the head, the reversing means is connected to the opening/closing body 24 via a coil spring 30 and is freely movable in the rotating direction of the opening/closing body 24. The reversing handle 31 is pivoted on the instrument body so that the direction of the rotation axis is parallel to the direction of the rotation axis of the piano handle 43, and has an engaging protrusion 34 formed on the surface of the push button handle 32gA of both II light parts. , corresponds to one of the engaging protrusions 34 that approaches the push handle 32 due to the inclination of the reversing handle 31 among the engaging cam bodies 38 formed at both ends in conjunction with the pushing of the push button handle 5. While pressing and engaging the engaging protrusion 34 with the engaging cam body 38, the reversing handle 3 is slid on the back surface of the push button tz handle 32 in a direction perpendicular to the pushing direction.
Slide cam 3 made of synthetic PM resin that provides reverse rotational force to 1.
3, and a return elastic body which is integrally molded with the slide cam 33 and whose free end is connected to the push button handle 32 side to provide an elastic force in the counter-sliding direction with respect to the sliding of the slide cam 33. When the contact portion is welded to the opening/closing body 24 and the reversing handle 31, which are connected via a coil spring 30, r! A forced tripping means is provided to detach the R closed body 24, and this forced tripping device is set to 11! ! It is composed of a removable engaging portion 24d provided on the orchid body 24 and a removable engaging portion 31d provided on the reversing handle 31 into which the removable engaging portion 24d is loosely fitted. By employing such a configuration, the problems of the conventional example described above are solved and the object of the present invention is achieved.

[Operation 1] According to the present invention, by pushing down the piano handle 43, the push button handle 32 is pushed down, and the push button handle 32 is pushed down.
The force-locking protrusion 34 that approaches the push button handle 32 of the reversing handle 31 is pushed by the one engaging cam body 38 of the slide cam 33 at the bottom 11111 of 2, and the reversing handle 31 is rotated in the reverse direction. Slide cam 33
Since the return elastic body provided on the slide cam 33 provides the return force, the pressing force of the push button handle 32 is released, the push button handle 32 moves upward, and the engagement protrusion 34 and the engagement cam body 38 are moved upward.
When the engagement with the push button handle 32 is released, the slide cam 33 automatically returns to its initial position at the center of the lower surface of the push button handle 32. In addition, normal switching between on and off is performed via the recoil spring 30 by rotating the reversing handle 31!
This is done by rotating the opening/closing body 24, but if the contact part is welded, the loosely fitted detachment engagement part 24d and the detachment engagement part 31d will come into contact and be forcibly removed. will be removed.

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

The push button switch 5 shown in FIG. 1 has a body 5a made of synthetic resin.
and a cover 5b made of synthetic resin form a container body,
Body locking holes 10a provided in body locking legs 10 hanging from a pair of opposing sides of the cover 5b are locked and coupled to locking protrusions 9 of the body 5a. The pushbutton switch 5 is formed to the size of one monoyl of standardized wiring equipment.

The cover 5b further has side pieces 2b of the mounting frame 2 on both sides,
A locking claw 1 corresponding to a locking hole 8 bored in the vertical side of 2b
1a and 1 lb are integrally protruded, and one of the locking claws 11b
At the back of the cover 5b, there is a hole I! which is formed by a hole vertically penetrating the outer wall of the cover 5b to obtain a deflection allowance. 1112 is formed so that the locking pawl 11b can be elastically bent backward. A locking protrusion 70 is provided on one end side of the upper part of the cover 5b, and a fulcrum protrusion 71 is protruded slightly inside the locking protrusion 70. A hole 72 is provided at the other end, and the opening edge of the hole 72 serves as a locking edge 72a.

Connection terminal storage areas 13 and 14 are formed on both sides of the body 5a, one connection terminal storage area 13 stores a connection terminal consisting of a common terminal plate 15, a locking spring 16, and a release button 17, and the other connection terminal The storage portion 14 stores a terminal plate 18 and a locking spring 19 that constitute a first connection terminal portion, and a terminal plate 20 and a locking spring 21 that constitute a second connection terminal portion.
A common release button 22 is housed in the second connection terminal portion.

The terminal plate 18 is provided with an extension piece 18afJ', and this i-piece 18a passes over the partition wall 14a and extends into the central storage section 23.
The extending piece 18a extends inward and is further close to the partition wall 14agA, and a fixed contact 25a is provided on this extending piece 18a.

Further, the terminal plate 20 extends into the central storage portion 23 along the inner wall of the body 5a, and its tip is bent along the partition wall of the connection terminal storage portion 13, and the fixed contact 25a is attached to the tip of the bent piece 20a. A fixed contact 25b corresponding to the above is provided.

The opening/closing body 24 is formed of a conductive plate, and the central storage part 2
3, and the protrusions 28 provided at the bottom of both ends are fitted into the ■-shaped recess 27 provided on the side wall of the central storage section 23, and with the lower edge of the support plate 15ai:@, the lower part of the ■-shaped recess 27 is inserted. It can be rotated freely around the center. And the opening/closing body 24
The movable contacts 29 provided on both sides of the upper part contact and release the fixed contacts 25a + 25b according to rotation, thereby turning on and off between the common connection terminal part and the eleventh or second connection terminal part. It looks like this.

The coil spring 3 drives this opening/closing body 24 in reverse.
0, a reversing handle 31, a push button handle 32, a slide cam 33, and the like.

The lower part of the coil spring 30 is engaged with a spring seat 24a provided on the upper edge of the top piece of the opening/closing body 24, and the upper part is inserted into a cylindrical part 31a that is integrally provided at the lower part of the reversing handle 31, and the coil spring 30 is reversed. The opening/closing body 24 is reversely driven in accordance with the movement of the handle 31 in both directions. Here, a fill spring locking protrusion 31e is provided at the back of the cylindrical portion 31a of the reversing handle 31, as shown in FIG. 4, and locks the upper end of the fill spring 30.

The reversing handle 31 has a shape as shown in FIG. 4, and the second reversing handle 3] is inserted into the four part 51 from the 10th angle into the hole 52 opened at the bottom of the four part 51 of the cover 5b.
Inverted triangular shafts 31c provided on both sides of the lower cylindrical portion 31a of the reversing handle 31 are rotatably supported on bearings 50 on the inner wall of the cover 5b. Here, the inverted triangular axis 31
The inversion angle of the inversion handle 31 can be determined by the angle of the triangle c. Engagement protrusions 34 and 34 that engage with the slide cam 33 are protruded from both upper sides of the rectangular parallelepiped portion 31b at the top of the reversing handle 31. Further, a bifurcated groove is provided in the lower part of the reversing handle 31, and serves as a detachable engagement part 31d, and the detachable engagement part 24d provided in the upper part of the opening/closing body 24 is free. It's fitted.

The tripping engagement portion 24d and the tripping engagement portion 31d constitute a forced tripping means for forcibly separating the contacts when the contact portions are welded together. Further, the reversing handle 31 is located below the engaging protrusion 34 of the reversing handle 31.
A falling-off prevention part 31f is provided to prevent the cover from falling out when inserted into the four parts 51 of the cover 5b from above.

The push button handle 32 has a locking protrusion 36 in a vertical locking groove 35 formed on both inner wall surfaces of the recess 51 of the cover 5b.
．． 36 is locked and housed in the recess 51 so as to be able to move up and down, and is configured by integrally extending two return spring pieces 37a and 37a downward from the child piece 37b. 37 is attached to the lower surface of the push button handle 32 by inserting a protrusion (not shown) protruding from the lower surface of the push button handle 32 into a hole 37d drilled in the child piece 37b, and the return spring piece 37a of the return spring 37 is attached to the lower surface of the push button handle 32. Concave the tip of 37a fi
By coming into elastic contact with the bottom surface of 51, it is constantly urged upward.

The slide cam 33 is made of a highly elastic thermoplastic resin such as polyacetal and is molded into a substantially mouth shape, and the engaging protrusion 34 of the reversing handle 31 is formed on the lower surface of the opposite side.
A hooking cam body 38 corresponding to the cam body 38 is provided protrudingly provided, and a pair of spring pieces 33a integrally protrudingly provided in the center portion of another side portion.
A protrusion 32A formed on the lower surface of the push button handle 32 is inserted between the tips of the spring pieces 33a, 33a, and the slide cam 3 is inserted on the lower surface of the push button handle 32.
3 is slidably mounted, and the elasticity of the spring pieces 33a, 33a provides a return force in the counter-sliding direction.

The push-button switch 5 constructed in this manner has a cover 5b fitted from below into the window hole 6 of the metal mounting frame 2 shown in FIG. If the contact point is rotated using this contact point as a fulcrum while in contact with the upper surface of the periphery of the side piece 5b, the locking pawl 11a on the fulcrum side will engage in the locking hole 8, and the lower end of the vertical side of the other side piece 2b will be engaged. The retaining pawl 11b is pressed inward by the deflection of the space 12 and the elastic force of the material of the cover 5b to overcome the retaining pawl 11b, and the retaining pawl 11b is engaged in the retaining hole 8. Locking claw 11a, 1
The push button switch 5 is locked and fixed by engaging the locking holes 8, 8, respectively, and causes the push button handle 32 to protrude from the window hole 6 of the mounting frame 2.

A piano handle 43 is attached to the push button switch 5 mounted on the mounting frame 2 in this manner. This via/handle 43 is as shown in FIG.

The locking part 43a provided on one side edge of the piano handle 43 is locked to the locking protrusion 70 of the cover 5b, and with the lower surface of the via/handle 43 in contact with the fulcrum projection 71, the other part of the piano handle 43 is held. @The locking part 43b on the edge is inserted into the hole 72 at the other end of the cover 5b so as to be vertically movable, and the locking part of the locking part 43b is locked in the locking edge 72a of the hole 72. . Then, the via/handle 43 can be removed by releasing the locking portions 43a and 43b. With the piano handle 43 attached as described above, the push button handle 32 can be pushed and driven by pushing and rotating the piano handle 43. In this state, the semicircular protrusion 73 on the upper surface of the push button handle 32
is in contact with the bottom surface of the via/handle 43. here,
A 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 via/handle type switch of the present invention will be explained based on FIGS. 5 to 10.

First, in the state shown in FIG.
When the via/handle 43 is omitted in the figure) is pushed down, the push button handle 32 is pushed down against the spring piece 37a, and as the push button handle 32 is pushed down, the cam 33 is slid down and the slide cam 33 is pushed down. The reversing handle 3 is in a state where the vicinity of the base of the inner inclined surface of the engaging cam body 38 of the 111th part on one side (left @ in FIG. 5(b)) is inclined.
The engaging protrusion 34 on the upper side of 1 (left side in FIG. 5(b))
(as shown in Figure 6(b)!), and then press the push button handle 3.
2, the engaging protrusion 34 is pushed down along the inner inclined surface of the engaging cam body 38, and the reversing nozzle 31 moves to the seventh position.
It rotates in reverse as shown in FIG. 9(b) to FIG. 9(b).

By the way, when one of the engaging cam bodies 38 of the slide cam 33 slides while engaging with one of the engaging protrusions 34 of the reversing handle 31, the other engaging cam body 38 slides while engaging with one of the engaging protrusions 34 of the reversing handle 31. The length between the pair of engaging cam bodies 38 and the length between the pair of engaging protrusions 34 are set so that the cam body 38 moves and is positioned inside the other engaging protrusion 34.

By configuring as described above, the engagement protrusion 3
4 is Fig. 5 (b), Fig. 6 (b) → Fig. 7 (b) → Fig. 8
Figure (b) → Rotate counterclockwise as shown in Figure 9 (b),
With this rotation, the engaging cam body 38 is moved by the engaging protrusion 34 against the spring piece 33a as shown in Fig. 5 (11) and Fig. 6 (a).
As shown in Fig. 7 (, ) → Fig. 8 (, ) → Fig. 9 (a), it slides to the left, and as shown in Fig. 8 (b), in the middle of reversing the reversing 71 handle 32, the reversing no. Even if the handle 32 rotates beyond the horizontal position and the other engaging protrusion 34 rises, the slide cam 33 slides to the left, so that the other end (right 1III in FIG. 7(b)) The engaging cam body 38 is located on the left side of the right engaging protrusion 34 so that it does not interfere with the reverse rotation of the reversing handle 31.

Here, as shown in FIGS. 4 and 15, if an inner inclined surface 31g is formed on the inside of the engaging protrusion 34 and a groove 31h is formed at the base of the engaging protrusion 34, when the engaging protrusion 34 rotates upward, The engaging cam body 38 located on the inner side can escape by the inner inclined surface 31g and the groove portion 31] so as not to interfere. In addition, when the reversing handle 31 is reversely rotated by pressing down the push button handle 32 as described above, the reversing/percent turn handle 31 is rotated by reversing the reversing handle 31 while sliding the slide cam 33 against the spring piece 33a. The slide cam 33 is capable of smoothly rotating the reversing handle 31 in reverse without receiving sliding frictional resistance.

When the reversing handle 31 is reversely rotated as described above, the fill spring 30 is reversely swung, the opening/closing body 24 is reversed, and the movable contact 29 comes into contact with one of the fixed contacts 25
a and contacts the other fixed contact 25b.

After this reversal and when the pressing force of the 77 handle 43 is released, the spring piece 37 of the return spring 37 is shown as shown in FIG. 10(b).
At step a, the push button/% handle 32 is pushed up, and the piano handle 43 is also returned to its original state. At the same time, the slide cam 33 also slides back to the central position by the spring force of the spring piece 33a, as shown in FIG. 10(a). In this state, if the piano handle 43 is pushed down, the opening body 24 can be reversed by the same operation as described above. If the downward force on the piano handle 43 is released in this reversal a, the state returns to the state shown in FIG. 5.

By the way, the contact section is switched on and off as described above, but if the contact section is welded, the opening/closing body 24 is turned on and off via the coil spring 30 by the reverse rotation of the reversing handle 31. If you simply try to rotate the coil spring 30, the coil spring 30 will bend, and you may not be able to reverse it and open the contact part. 30 is deflected, the detachment engagement part 31d of the reversing handle 31 is loosely fitted into the detachment engagement part 2.
4d, the opening/closing body 24 is forcibly rotated and the contact portion is pulled out.

Note that in the embodiment shown in FIG. 3, the mounting frame 2 is formed to the size of the standardized wiring device 3@ (3 monoyl), and in the embodiment shown in FIG. One push button switch 5 of 1 monoyl is attached to the mounting frame 2 shown, one piano handle 43 of 3 monoyl size is attached to the mounting frame 2 of 3 monoyl, and one push button switch 5 is attached by the large piano handle 43. The switch 5 is to be operated, but as shown in Fig. 12, two pushbutton switches 5 are attached to the mounting frame 2, and the switch is as large as 1.5 monoliths! Two vias/handles 43 of one size may be attached, or three push button switches 5 may be attached to the mounting frame 2 and three vias/handles 43 may be attached as shown in FIG. It is something. Further, in this embodiment, as shown in FIG. 13, when the central via/knoll handle 43 is pushed, the piano handles 43 on both sides can be pushed simultaneously, and the piano handles 43 on both sides can be pushed independently. You can. In addition, as shown in Fig. 14(C), one mounting frame 2 is as large as 1.5 monoliths!
Attach the two piano handles 43 and place one next to them.
It is also possible to install 2 module vias 7 nodes 43. In addition, in FIG. 14(a)(b)(e), K
is a decorative frame, which covers the mounting frame 2.

[Effect of the Invention 1] As described above, the present invention has a structure that is connected to the opening body through a fill spring so as to be freely movable in the rotating direction of the opening and closing body, and in the direction of the rotation axis. is pivoted on the container body so as to be parallel to the direction of the rotation axis of the via/handle, and has engaging protrusions formed on the surfaces on the push button handle side at both ends, and the reversible handle is linked to the pushing of the push button handle. Among the engaging cam bodies formed on both side ends, the above-mentioned reversing handle is tilted to approach the push button handle, and the engaging cam body corresponding to the engaging protrusion on the left side presses and engages the engaging protrusion in a direction perpendicular to the pushing direction. A slide cam made of synthetic resin that slides on the back of the push button handle to apply a reversing force to the reversing handle is integrally molded with this slide cam, and the free end is connected to the push button handle side. It is composed of a return elastic body that applies an elastic force in the counter-sliding direction against sliding, so when the piano handle is pushed down, the push button handle can be pushed back.
The push-down motion can be smoothly converted into the reverse rotation motion of the reversing handle via the slide cam, and the mechanism for converting the push-down motion into the reverse rotation motion has a simple structure and is thin. It is easy to operate with 7 touches, has a good appearance, is thin, and has the same opening/closing performance as conventional wave switches. Furthermore, the opening/closing body and the reversing handle, which are connected via a coil spring, are provided with forced tripping means for removing the opening/closing body when the contact parts are welded, and this forced tripping means is provided with a tripping mechanism provided on the opening/closing body. It consists of a connecting part and a pulled-out engaging part provided on the reversing handle into which this tripping-engaging part is loosely fitted, so during normal on/off switching, the tripping-engaging part and the pulled-out engaging part are connected. The engagement part for tripping is loosely fitted, and normal on/off switching is performed by rotating the opening/closing body via the fill spring by rotating the reversing handle, but the contact part may be welded. If it is, the loosely fitted tripping portion and the bowing removal engaging portion will come into contact and be forcibly pulled out, ensuring that the contacts are switched.

[Brief explanation of the drawing]

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 of the same before the via/knoll is pushed in, and after it is pushed in. 3(a) is an exploded perspective view showing the push button switch, mounting frame, and piano handle; FIG. 3(b) is a perspective view of the back of the piano handle; FIGS. 4(a) and 4(b) (C) is a plan view, partially cutaway front view and side view of the reversing handle;
Figures (a) (b), Figure 6 (, ) (b), Figure 7 (a) (
b), Figure 8 (, ) (b), Figure 9 (a) (b), 1st
Figures 0 (a) and (b) are explanatory diagrams showing the operation order showing the relationship between the slide cam and the protrusion, and an explanatory diagram showing the overall operation order, Figures 11 (a) and (b), and Figure 12 (a). )(b
), Fig. 13 (aHb) is an exploded view and a plan view of each embodiment showing the number of push button switches and the number of vias/handles mounted to the mounting frame, respectively, and Fig. 14 (a) (b)
Figure 111N14 (c) is a plan view and side view of the example with a decorative frame attached, Figure 111N14 (c) is a plan view of the pond example, and Figure 15
The figure is an explanatory diagram of an embodiment in which the inside of the engaging protrusion is inclined, and 5 is a push button switch, 24 is an opening/closing body, 24d is a detaching engagement part, 30 is a coil spring, 31 is a reversing handle, 31d is an engaging portion for being pulled out, 32 is a push button handle, 33 is a slide cam, 34 is a hooking protrusion, 38
43 is an engaging cam body, and 77 is a handle. Agent Patent Attorney Ishi 1) Chief 7 Figure 2 Figure 2 51C1 (C) Figure 5 Figure 6 (a) (b) qd Figure 7 (G) (b) Figure 8 (G) (b) Figure 9 (b) Figure 10 (b) Figure 11 Figure 14 (b)

Claims (1)

[Claims] (1) An opening/closing body that is rotatably supported within the vessel body and opens and closes the contact portion, and the head is exposed from the surface of the body and is mounted within the vessel so as to be movable in a direction orthogonal to the exposed surface. a push-button handle, a reversing means for reversing the opening/closing body once in conjunction with the push of the push-button handle, and a return means installed in the container body for biasing the push-button handle in a forward exposure direction. In a piano handle-type switch consisting of a push-button switch and a piano handle whose one side is rotatably supported outside the push-button switch and whose back surface is in contact with the head of the push-button handle, the reversing means is the above-mentioned opening/closing mechanism. It is connected to the body via a coil spring and is pivotally supported on the body so that it can freely see-saw in the direction of rotation of the opening and closing body, and the direction of the rotation axis is parallel to the direction of the rotation axis of the piano handle. Among the reversible handles that have engaging protrusions formed on the surfaces facing the push button handle at both ends, and the engaging cam bodies formed at both ends in conjunction with the pushing movement of the push button handle, the inclination of the reversible handles allows the push button handle to An engaging cam body corresponding to one approaching engaging protrusion presses and engages the engaging protrusion, and is made of synthetic resin and slides on the back surface of the push button handle in a direction perpendicular to the pushing direction to apply a reversing rotational force to the reversing handle. Consisting of a slide cam and a return elastic body that is integrally molded with the slide cam and whose free end is connected to the push button handle side to apply an elastic force in the counter-sliding direction to the sliding of the slide cam. The opening/closing body and the reversing handle, which are connected via a coil spring, are provided with forced tripping means for removing the opening/closing body when the contact parts are welded, and this forced tripping means is provided with a tripping mechanism provided on the opening/closing body. A piano handle type switch comprising a mating part and a to-be-trimmed engagement part provided on a reversing handle into which the trip-out engagement part is loosely fitted.