JPH1040777A - Piano switch with indicator lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To turn ON an indicator lamp without permitting brightness of the lamp to depend upon a load capacitance and even when used in combination with other switches or the like. SOLUTION: A push-button switch 5 is connected between an alternating power supply AC and a load L. Since a neon tube PL is connected in parallel to the load L against the alternating power supply AC, if a fixed contact 25a and a movable contact 29 are closed, power is supplied from the alternating power supply AC to the load L via a common terminal plate 15 and a terminal plate 18, and at the same time a voltage substantially equal to a voltage to be applied to the load L is always applied to the neon tube PL via the terminal plates 18 and 19. Therefore, the applied voltage to the neon tube PL is never altered by the capacitance of the load L unlike conventional one, the neon tube PL can always be lit with a certain brightness. Moreover, even when the push-button switch 5 is used in combination with other switches or the like, operation display of the load L can be performed by means of the neon tube PL.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piano handle switch in which a contact is switched on and off by a touch operation of a piano, and more particularly to a piano switch with an indicator light having an indicator light for displaying an on / off state of the contact. It is about.

[0002]

2. Description of the Related Art Piano handle switches in which contacts are switched on and off by a piano touch operation have been conventionally provided. A piano handle is mounted on a push button switch, and the switch is provided inside the push button switch according to the operation of the piano handle. The provided contact switching mechanism is driven.

[0003] In this type of piano handle switch, when the pressed state of the piano handle is released, the piano handle always returns to the state before being pressed, so that the on / off state of the contact cannot be grasped.
Therefore, in this type of conventional piano handle type switch, there is provided a switch in which an indicator lamp which is turned on in accordance with the on / off state of a contact is built in a push button switch.

[0004]

However, in the conventional indicator lamp, for example, a current transformer is inserted in the middle of a current path to a load, and power is supplied through this current transformer. Therefore, there is a problem that the voltage applied to the indicator lamp varies depending on the brightness, and the brightness of the indicator lamp depends on the load capacity. Further, when used in combination with another switch or the like, there is a problem that the indicator lamp does not light up and it may not be possible to know the state of energization to the load.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to turn on an indicator light even when the brightness of the indicator light is not influenced by a load capacity and used in combination with another switch or the like. It is an object of the present invention to provide a piano switch with an indicator light that can be operated.

[0006]

According to a first aspect of the present invention, in order to achieve the above object, when a push button is pressed, a reversing handle is rotated in reverse with the pushing operation of the push button. A pushbutton switch that switches on and off the contact inserted between the power supply and the load in response to the turning of the handle, and is connected to the power supply in parallel with the load, and is applied from the power supply when the load is energized. And a piano handle attached to the upper part of the push button switch and pressing the push button by a piano touch operation. When the contact is turned on, the indicator light loads the power supply. Is connected in parallel to the display lamp, a predetermined voltage is always applied to the display lamp, so that the display lamp can be turned on with almost constant brightness irrespective of the load capacity, and other switches can be turned on. Even when used in combination with the above, if the contacts such as other switches are turned on, the indicator light is connected to the power supply in parallel with the load, and in this case, the indicator light can be turned on. .

According to a second aspect of the present invention, in the first aspect of the present invention, a display body slidably attached to the piano handle to display an on / off state of a contact, and a lower surface provided on the display body is inclined obliquely. A driving piece for sliding the display body in one direction by applying a pressing force to the inclined operation surface of the display body with the rotation of the reversing handle in one direction, formed on the reversing handle, When the display body slides in one direction on the inclined upper end of the inclined operation surface, the driving piece is locked to lock the display body, and the locking means is locked as the reversing handle rotates in the other direction. Returning the display body to the initial position by sliding the display body in the other direction in a state where the lock by the means is released, wherein the display body slides along the inclined operation surface. And locks when the contacts are switched The display is locked by the step and the display of the contact switching state is locked, so that the correct display can be continued accurately, while the piano handle is pressed again to turn the reversing handle in the other direction. When the contact is switched by moving, the driving piece rotates together with the reversing handle to release the lock, and at the same time the lock is released, the display returns to the original initial position by the return means and the corresponding contact is switched. The state can be displayed. In this case, the display state of the contact switching state by the driving piece is continuously maintained by the return means unless the piano handle is operated.

According to a third aspect of the present invention, in the second aspect of the present invention, the display body is located at a side end of the piano handle on the operation fulcrum side or a side end opposite to the operation fulcrum side, and the side end is located at the side end. Characterized by being slidable along the edge of the
Despite the fact that the display is sliding, the side end of the piano handle can be used as a display for displaying contact switching, and the center is used as another display, such as a nameplate. it can.

The invention of claim 4 is the invention of claim 1 or 2 or 3
In the invention of the above, the body of the push button switch is formed in a size that can be attached to a mounting frame standardized for embedded wiring equipment, and the entire handle of the opening of the mounting frame to which the push button switch is attached is at least a piano handle. It is characterized by having a size to cover, and the operability can be improved by using a large piano handle.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the accompanying drawings. 1 to 13 show an embodiment of the present invention. First, the basic structure of the piano handle switch will be described. As shown in FIGS. 2 to 4, the piano handle switch according to the present embodiment includes:
A push button switch 5 whose contact is switched by pressing the push button 32; a piano handle 43 having one end pivotally supported on the upper surface of the push button switch 5 and pressing the other end to press the push button 32; Consists of

The body of the push button switch 5 is formed of a synthetic resin body 5a and a cover 5b.
Of a pair of body locking legs 10 respectively suspended from both sides of the body
The body locking hole 10a provided in the body 5a is locked to the locking projection 9 of the body 5a, and the cover 5b is attached to the body 5a. Here, the body of the push button switch 5 has a size of one unit of a unit size that can be mounted on a mounting frame standardized for embedded wiring equipment in JIS or the like (this is "1"). Individual module dimensions ”). A pair of locking claws 11a and 11b are respectively provided on both end surfaces of the cover 5b so as to be removably attachable to a standardized mounting frame 2 used for embedding a ready-made wiring device. A space 12 is formed in the back of one of the locking claws 11b.
b is elastically bent to the back. Therefore, the push button switch 5 can be removably mounted by locking the locking claws 11a and 11b to the mounting frame 2, and can be embedded in a construction surface such as a wall surface in the same manner as a ready-made embedded wiring device. It is.

Connection terminal housings 13 and 14 are formed at both ends in the body 5a of the push button switch 5, and a central housing 23 is formed between the connection terminal housings 13 and 14. Here, the one connection terminal storage section 13 stores a common terminal plate 15 and a quick-connecting terminal composed of locking springs 16 and 16 and a release button 17. In the other connection terminal storage section 14, a first connection terminal section including a terminal plate 18 and a locking spring 19 and a second connection terminal section including a terminal plate 20 and a locking spring 21 are stored. These first and second connection terminal portions can be commonly released by a release button 22.

An extended piece 18a to which a fixed contact 25a is fixed is formed on the terminal plate 18, and this extended piece 18a extends toward the central storage portion 23 near the partition wall 60a.
An opening / closing body 24 made of a conductive plate is rotatably provided near the fixed contact 25a. The opening / closing body 24 is a support piece 1 extending from the common terminal plate 15 to the central storage portion 23.
5a, and protrusions (not shown) provided at the lower ends of both ends are fitted into V-shaped recesses 27 formed on the inner side wall of the central storage portion 23, and are rotatable around the lower portions of the V-shaped recesses 27. Has become. Then, the movable contact 29 provided on both upper surfaces of the opening / closing body 24 is moved toward and away from the fixed contact 25a according to the rotation,
The connection and disconnection between the common connection terminal and the first and second connection terminals are performed.

The opening / closing member 24 includes a coil spring 3
0, reversing handle 31, push button 32, slide cam 33,
The reversing mechanism constituted by the return spring 37 drives the reversal. Here, the lower part of the coil spring 30 is locked by a spring seat 24 a provided on the upper edge of the opening / closing body 24, and the upper part is housed in a cylindrical part 31 a protruding from below the reversing handle 31. Opening / closing body 2 according to rotation of 31
4 is driven in reverse. The reversing handle 31 is inserted from below into a hole 52 opened at the bottom of the concave portion 51 of the cover 5b, and an inverted triangular shaft 31c provided on both sides of the cylindrical portion 31a of the reversing handle 31 is formed on the inner wall of the cover 5b. Engagement projections 34 that engage with the slide cam 33 are protrudingly provided on both ends of the rectangular parallelepiped portion 31b at the upper portion of the reversing handle 31.

The push button 32 is vertically movably attached to the cover 5b, and is constantly urged upward by a return spring 37 disposed below. A slide cam 33 is formed at the lower surface on both ends with a engagement cam body 38 which is slidably engaged with the engagement projection 34 of the reversing handle 31, is slidably mounted on the lower surface side of the push button 32, and has a C-shaped inside formed. Projection 3 formed on the lower surface of push button 32 between a pair of spring pieces 33a
2a is inserted, and a return force is given by the spring piece 33a.

As shown in FIG. 3, the piano handle 43 has a pair of turning pieces 43a vertically extending from the lower surface on the pivot end side, and also prevents the push button switch 5 from coming off from the lower surface on the pressing operation end side. A pair of retaining pieces 43b are provided vertically. The rotating piece 43a is engaged with the concave portion 54 formed in the cover 5b, and the retaining piece 43b is inserted into the space 12, and the retaining piece 4
When the pressing operation end side on the 3b side is pressed, it turns in a piano touch manner with the turning piece 43a side as a fulcrum. The rotation of the piano handle 43 causes the push button 3 of the push button switch 5 to move.
2 is pressed.

The piano handle switch has a display section A for displaying the operation of the load in accordance with the switching of the contacts. FIG. 1 shows that the three-wire push button switch 5 is connected to an AC power source AC.
This shows a circuit in the case where the load is connected between the terminal L and the load L. The operation of the load is indicated by a neon tube PL connected between the terminal plates 18 and 20. In this display unit A, each component such as the neon tube PL is mounted on the printed circuit board 26,
It is placed on top of the terminal plates 18 and 20. An elastic contact 26a is attached to the lower surface of the printed board 26,
Terminals 18b and 20b protruding from the terminal plates 18 and 20 are resiliently contacted with the contact 26a to electrically connect the display section A. Further, a window 40 is provided in the cover 5b so that light from the neon tube PL can be seen.

Since the neon tube PL is connected to the AC power supply AC in parallel with the load L as shown in FIG. 1, when the fixed contact 25a and the movable contact 29 are closed, the common terminal plate 15 When the load L is supplied from the AC power supply AC to the load L via the terminal plate 18, the same voltage as the voltage applied to the load L is always applied to the neon tube PL via the terminal plates 18 and 20. Become. Therefore, the voltage applied to the neon tube PL does not fluctuate due to the capacity of the load L as in the related art, and the neon tube PL can always be lit with a constant brightness. In addition, even when a switch or the like connected to the AC power supply AC and the load L is turned on in parallel with the push button switch 5, the power supply path from the AC power supply AC to the load L is formed, so that the load L is connected in parallel. Since the voltage is also applied to the neon tube PL connected to the switch, the operation of the load L can be displayed by the neon tube PL even when the push button switch 5 is used in combination with another switch or the like. . In the present embodiment, a neon tube is used as the indicator light, but it is needless to say that the present invention is not limited to this, and other display elements can be used.

On the other hand, in the push button switch 5 configured as described above, the locking claw 11a is engaged with the locking hole 8 of one side piece 2b of the metal or synthetic resin mounting frame 2, and then the space 12 is engaged. Of the locking claw 11b by using the bending caused by
Of the mounting frame 2 from below the window hole 6. The push button switch 5 attached to the attachment frame 2 in this manner is provided with a piano handle 43. The piano handle 43 is formed so as to cover at least the entire opening of the mounting frame 2, and pivotally locks a fulcrum rib 43 a provided at one end edge to a concave portion 54 at one end of the cover 5 b. A locking foot 43b formed at the other end of the piano handle 43 is mounted in a locking space 47 at the other end of the cover 5b so as to be vertically movable. This piano handle 4
By pressing the other end of the handle 3, the pivot rib 43 a is rotatable around the fulcrum rib 43 a, and by pushing and rotating the piano handle 43, the push button handle 32 is pressed.
And can be driven. The piano handle 43 has a through-hole window 4 for transmitting the light of the neon tube PL.
3d is perforated.

Next, the operation of the push button switch 5 will be briefly described with reference to FIGS. 5 shows a state in which no operation is performed on the piano handle 43, FIG. 7 shows a state in which the pressing operation end of the piano handle 43 is fully pressed, FIG. 6 shows an operation state in the middle thereof, and FIG. 10 shows a state in which the pressing operation of the piano handle 43 is released and the piano handle 43 is returned, and FIG.
FIG. 9 shows a state in which the pressing operation end of No. 3 is fully pressed again, and FIG. 9 shows an operation state in the middle of FIG. 8 and FIG.
FIG. 5 shows a state in which the pressing operation of the piano handle 43 is released in the state of FIG. 10 and the piano handle 43 returns. Now, assuming that the piano handle 43 is operated in the state of FIG. 5, the push button 32 is pushed down against the return spring 37 with the operation of the piano handle 43 as shown in FIG. Descends.
Then, the engagement cam body 38 on the right side of the slide cam 33 in the drawing.
Hits the engaging protrusion 34 on the right side of the reversing handle 31, whereby the reversing handle 31 is rotated. At this time,
The slide cam 33 slides to the right in the figure with the rotation of the reversing handle 31. When the reversing handle 31 is rotated in this manner, the coil spring 30 is reversed, the opening / closing body 24 is reversed, and the movable contact 29 contacts the fixed contact 25a (see FIG. 7). After this reversal, when the pressing force of the piano handle 43 is released, as shown in FIG.
The push button 32 is pushed up by the return spring 37, and at this time, the piano handle 43 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. Thereafter, when the piano handle 43 is operated again as shown in FIG. 9, the reversing handle 31 is reversed and rotated in the opposite direction as shown in FIG. Contact switching is performed so as to be disengaged from 25a. When the pressing force of the piano handle 43 is released here, the state returns to the state shown in FIG.

The above is the description of the piano handle type switch which is the basis of the present embodiment. Hereinafter, the structure of a display mechanism for mechanically displaying a contact switching state will be described.
As shown in FIG. 12, a sliding recess 76 is provided on the back surface of the piano handle 43, and a display 70 is slidably fitted in the sliding recess 76. A display window is provided substantially at the center of the sliding recess 76. A guide projection 70a protrudes from the rear surface of the display body 70, and the guide projection 70a
The operation surface 7 inclined in the sliding direction of the display body 70
0b is formed. In the drawing, reference numeral 77 denotes a pressing plate which is attached to the back surface of the piano handle 43 so as to cover the sliding recess 76 except for the moving range of the guide projection 70a so as to prevent the display body 70 from coming off. Has become. The holding plate 77 is provided with a heating pin 1 provided on the piano handle 43.
07 is fitted into the heat hole 108 of the holding plate 77, and the heat pin 107 is welded and fixed. And the holding plate 7
7, a notch 77a is formed, and a guide projection 70a is formed.
Slides in the notch 77a. A coil spring fitting groove 120 is provided in the piano handle 43 and the holding plate 77, and a part of the coil spring 78 is fitted. An end of the coil spring 78 is provided at one end of the display body 70 in the sliding direction. The coil spring fitting projection 70e fits the spring force of the coil spring 78 so that the display body 70 is provided with a spring force that is pressed in one direction. It constitutes a return means.
On the other hand, a driving piece 71 for sliding the display body 70 is formed integrally with the reversing handle 31.
Has a substantially L shape, and is inserted into the hole 73 of the cover 5b.

FIGS. 5B to 10B show the driving state of the display 70. FIG. In the state of FIG. 5B, the upper end of the driving piece 71 is located near the lower end of the inclined operation surface 70b. In this state, the piano handle 43
Is pressed, the reversing handle 31 rotates, and the upper end of the driving piece 71 provided integrally with the reversing handle 31
As shown in FIG. 6B, the display body 70 is guided by the inclined surface 70b and moves as shown by the arrow in FIG. The surface position of 70 changes, and the piano handle 43
Is completely pushed down, the reversing handle 31 completes the reversing rotation, and when the contacts are exchanged, at the same time, as shown in FIG. 7 (b), the upper end of the driving piece 71 is inclined to the inclined upper end of the operation surface 70b. Locked by locking to the continuous rising surface,
This is the locking means. In this locked state, the locked state is maintained as shown in FIG. In this state, a part of the surface of the display 70 (the left half of the surface of the display 70 in FIG. 8B) faces the display window. In this state, as shown in FIG. 8A, a state in which the movable contact 29 is in contact with the fixed contact 25a is displayed from the display window. When the piano handle 43 is further pressed, the reversing handle 31 rotates in the reverse direction, whereby the tip of the driving piece 71 is lowered, the locking means is released, and the driving piece 71 is lowered. As a result, the display 70 is moved by the spring force of the coil spring 78 in FIG.
(B), it returns as shown in FIG. 10 (b), and returns to the state of FIG. 5 (b) when the pressing of the piano handle is released. In this state, it is movable as shown in FIG. 5 (a). Contact 29
Are dissociated from the fixed contact 25a, and the other part of the surface of the display 70 (the right half of the surface of the display 70 in FIG. 5B) faces the display window 110. This state is a state in which the movable contact 29 is disengaged from the fixed contact 25a as shown in FIG. Then, the contact switching state is mechanically displayed by the display 70 in this manner, and in this case, the display 70 is described as “ON” or “OFF” as shown in FIG. For example, "ON" is written on one side of the surface of the display 70 and "OFF" is written on the other side, and "ON" is displayed from the display window 110 in response to contact switching. Displayed, or
"OFF" is displayed. The light from the neon tube PL is also displayed from the light transmitting window 43d provided near the display window 110 according to the operation state of the load L.

In the above-described embodiment, the display body 70 is positioned offset to the side end of the piano handle 43 on the operation fulcrum side and is slidable along the edge of the side end. With such a configuration, the side end of the piano handle 43 can be used as a display portion for displaying contact switching, and the central portion can be used as another display portion, for example, a display portion such as a name plate 104 or the like. For example, the nameplate is fitted into the center of the piano handle 43 on the front side of the concave portion 1.
13, a name plate 104 can be fitted in this portion. In FIG. 12, reference numeral 112 denotes a name plate removing pressing piece. The name plate 104 fitted into the name plate fitting recess 113 by pressing the name plate removing pressing piece 112 from behind.
Can be removed by pressing it from behind.

FIGS. 14 to 20 show another embodiment of the present invention. In this embodiment, a display mechanism for mechanically displaying the operation state of the load is omitted, and the configurations of the push button switch 5 'and the piano handle 43' excluding the display mechanism are common to the previous embodiments. For this reason, common portions are denoted by the same reference numerals, and description thereof is omitted. In the present embodiment, a coil spring 30 having a lower portion formed in a spring seat 24a provided on an upper edge of the opening / closing body 24 is inserted into a cylindrical portion 31a 'protruding from a lower portion of the reversing handle 31' (see FIG. 4). 16 and 19). The cover 5b
A window 40 is provided at a position facing the neon tube PL, and a lamp cover 41 is attached to the window 40 so that light of the neon tube PL can be seen from the outside. Note that also in this embodiment, the neon tube PL is connected to the terminal plate 1.
Since they are inserted and connected between 8, 20 and are connected in parallel with the load L to the AC power supply AC as in the previous embodiment, the same effects can be obtained.

[0025]

According to the first aspect of the present invention, when the push button is depressed, the reversing handle is rotated in reverse with the pushing operation of the push button. A pushbutton switch for turning on / off a contact inserted between the switches, an indicator light connected in parallel with the load to the power supply, and lit by a voltage applied from the power supply when the load is energized; The switch has a piano handle attached to the upper part of the switch and presses a push button by a piano touch operation.When the contacts are turned on, the indicator light is connected in parallel to the load with respect to the power supply. Voltage is applied, and the indicator lamp can be turned on with almost constant brightness regardless of the load capacity, and the indicator lamp is turned on even when used in combination with other switches etc. That there is an effect that it is.

According to a second aspect of the present invention, there is provided a display body which is slidably attached to a piano handle to display an on / off state of a contact, an operation surface provided on the display body with a lower surface inclined obliquely, and a reversing handle. A driving piece for applying a pressing force to the inclined operation surface of the display body and sliding the display body in one direction with the rotation of the reversing handle in one direction, and an inclined upper end of the inclined operation surface A lock means for locking the display body by locking the driving piece when the display body slides in one direction, and a state in which the lock by the lock means is released as the reversing handle rotates in the other direction. And a return means for returning the display body to the initial position by sliding the display body in the other direction, so that the display body slides along the inclined operation surface and locks in a state where the contact is switched. Is locked by the Display by 示体 is in the locked state, can be continuously performed exactly the right display,
On the other hand, when the contact is switched by pressing the piano handle again to rotate the reversing handle in the other direction, the driving piece rotates together with the reversing handle to release the lock, and returns when the lock is released. The display means can be returned to the original initial position by the means and the corresponding contact switching state can be displayed. In this case, the display state of the contact switching state by the driving piece is continued by the return means unless the piano handle is operated. This has the effect of being maintained.

According to a third aspect of the present invention, the display body is located at a side end of the piano handle on the operation fulcrum side or a side end opposite to the operation fulcrum side and slides along the edge of the side end. Because the display body is slidable, the side end of the piano handle can be used as a display portion for displaying contact switching even though the display body slides. There is an effect that it can be used as a display part by, for example.

According to a fourth aspect of the present invention, the body of the push button switch is formed in a size that can be attached to a mounting frame standardized for an embedded wiring device, and the piano handle is attached to at least the push button switch. Since the size is such that it covers the entire opening of the frame, the use of a large-sized piano handle has the effect of improving operability.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing an embodiment.

FIG. 2 is an exploded perspective view of the same.

FIG. 3A is a cross-sectional view showing a state in which a movable contact is in contact with one fixed contact in the above, and FIG. 3B is a cross-sectional view showing a relationship between a driving piece and a display body in the same.

FIG. 4A is a cross-sectional view showing a state in which a movable contact is in contact with the other fixed contact in the above, and FIG. 4B is a cross-sectional view showing a relationship between a driving piece and a display.

FIGS. 5A and 5B are explanatory drawings showing the operation sequence of the above, wherein FIG. 5A is an overall sectional view, and FIG. 5B is a sectional view showing a relationship between a driving piece and a display body.

FIGS. 6A and 6B are drawings for explaining the operation sequence of the above, wherein FIG. 6A is an overall cross-sectional view, and FIG. 6B is a cross-sectional view showing a relationship between a driving piece and a display body.

FIGS. 7A and 7B are drawings for explaining the operation sequence of the above, wherein FIG. 7A is an overall cross-sectional view, and FIG. 7B is a cross-sectional view showing a relationship between a driving piece and a display body.

FIGS. 8A and 8B are drawings for explaining the operation sequence of the above, in which FIG. 8A is an overall sectional view, and FIG. 8B is a sectional view showing a relationship between a driving piece and a display body.

FIGS. 9A and 9B are drawings for explaining the operation sequence of the above, wherein FIG. 9A is an overall cross-sectional view, and FIG. 9B is a cross-sectional view showing a relationship between a driving piece and a display body.

FIGS. 10A and 10B are drawings for explaining the operation sequence of the above, in which FIG. 10A is an overall sectional view, and FIG. 10B is a sectional view showing a relationship between a driving piece and a display body.

FIG. 11 is a perspective view of a push button switch part of the above.

FIG. 12 is an exploded perspective view of the same piano handle portion.

FIG. 13 is an exploded plan view of the piano handle switch and the push button switch when the number of the push button switches is one;

FIG. 14 is an exploded perspective view showing another embodiment of the present invention.

15A and 15B show the same as above, (a) is a plan view of a body of the push button switch, (b) is a plan view of a cover of the push button switch,
(C) is a top view of the body of a push button switch.

FIG. 16 is a side sectional view of the same push button switch.

17 (a) and 17 (b) show the same, with (a) being a front view and (b) being a side view.

FIG. 18 is a fragmentary cross-sectional view showing a state where the movable contact is in contact with the fixed contact;

FIG. 19 is a plan view showing the reversing handle in the above.

FIG. 20 is a plan view showing the above.

[Explanation of symbols]

 5 Push button switch 15 Common terminal plate 18 Terminal plate 20 Terminal plate PL Neon tube AC AC power supply L Load

Claims (4)

[Claims] When a push button is pushed in, a reversing handle is turned in accordance with the pushing operation of the push button, and a contact is inserted between a power supply and a load in accordance with the inversion turning of the reversing handle. A push-button switch on / off switching of which is performed, and an indicator lamp which is connected in parallel to the load with respect to the power supply and which is lit at a voltage applied from the power supply when the load is energized,
A piano switch with an indicator light, comprising: a piano handle attached to an upper part of the push button switch and pressing the push button by a piano touch operation. 2. A display body slidably attached to a piano handle for displaying an on / off state of a contact, an operation surface provided on the display body with a lower surface inclined obliquely, a reversing handle formed on a reversing handle. A driving piece for applying a pressing force to the inclined operation surface of the display body in accordance with the rotation in one direction to slide the display body in one direction, and a display body at the upper end of the inclined operation surface. Locking means for locking the display body when the driving piece is locked when sliding in one direction, and the display body in a state in which the lock by the locking means is released as the reversing handle rotates in the other direction. 2. A piano switch with an indicator light according to claim 1, further comprising return means for returning to an initial position by sliding in the other direction. 3. The display body is located at a side end of the piano handle on the operation fulcrum side or a side end opposite to the operation fulcrum side, and is slidable along the edge of the side end. The piano switch with an indicator light according to claim 2, characterized in that: 4. A body of a push button switch is formed in a size that can be mounted on a mounting frame standardized for an embedded wiring device, and a piano handle is formed at least over the entire opening of the mounting frame to which the push button switch is mounted. The piano switch with an indicator light according to claim 1, wherein the piano switch has a size to cover the piano switch.