JP3155370B2 - Piano switch with contact switching display function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a display portion for displaying a switching state in a piano handle switch in which a contact is switched by a piano touch operation.

[0002]

2. Description of the Related Art FIG. 10 shows an example of a piano handle switch in which contact switching is performed by a piano touch operation. In this piano handle switch, a piano handle 43 is mounted on the push button switch 5, and a contact switching mechanism provided inside the push button switch 5 is driven according to the operation of the piano handle 43.

In the case of the piano handle 43, the movable contact 29 fixed to the opening / closing body 24 is rotatably provided by rotating the opening / closing body 24 provided between the fixed contacts 25a and 25b disposed opposite to each other. And the fixed contacts 25a and 25b are brought into contact with and separated from each other to perform contact switching. Since the rotation of the opening / closing body 24 is the same in the embodiment of the present invention,
A detailed description will be given in the description of the embodiment, and only a brief description will be given here. That is, the piano handle 4
3 is operated, the push button 32 is depressed in response to the operation of the piano handle 43, and the slide cam 33 descends with the depression of the push button 32, whereby the reversing handle 31
Is rotated in the reverse direction, and the opening / closing body 24 rotates in either the left or right direction. The reversing handle 31 and the opening / closing body 24
And are connected by a coil spring (not shown).

[0004]

By the way, in this type of the piano handle type switch, the piano handle 4
When the pressing state of No. 3 is released, the piano handle 43 always returns to the state before the pressing, so that the contact switching state cannot be grasped. Therefore, in the process of arriving at the present invention, the inventor of the present invention slidably attached to the piano handle to display a contact switching state, and formed on the inversion handle with the rotation of the inversion handle in one direction. A driving piece for sliding the display is provided, and the switching of the contact is displayed on the display by sliding the display according to the driving of the reversing handle. Also, in combination with this, a light emitting element is provided on the push button switch for displaying the above-mentioned contact switching or displaying the energized state of the load, and the light emitting element is displayed from the light display window provided on the surface of the piano handle. In consideration of this, we have already filed an application as Japanese Patent Application No. 4-133060. In Japanese Patent Application No. 4-133060, a display window of a display body and a light display window of a light-emitting element are provided adjacent to each other on the side of the surface of a piano handle. However, for example, in the case of a switch of an air conditioner or the like, there is a strong demand for visually confirming the current contact switching state. However, if the display window of the contact switching state is located at the side end of the surface of the piano handle. There was a problem that it was inconspicuous and hard to confirm with eyes. In particular, in the case of light-emitting display by light, it is not so difficult to see even if it is at the end of the piano handle, but when checking characters and colors, characters and colors next to this light-emitting display When there is a display, attention is always paid to the light, and the display on the display body is hard to visually recognize.

The present invention has been devised in view of the above-mentioned problems of the prior art, and has as its object the most conspicuous position in a piano handle in which the display position of contact switching is separated from the light display position by an optical element. It is an object of the present invention to provide a piano switch with a contact switching display function, which is displayed at a position and the display of contact switching can be accurately confirmed by eyes, and the display by light can be confirmed at another position.

[0006]

In order to achieve the above object, a piano switch with a contact switching display function according to the present invention is constructed such that when a push button is depressed, the reversing handle 31 is pushed with the depressing operation of the push button 32. A push button switch 5 for switching contacts according to the reversal rotation of the reversing handle 31, a piano handle 43 mounted on the upper part of the push button switch 5 and pressing the push button 32 by a piano touch operation. A display body 70 slidably attached to the piano handle 43 and displaying a contact switching state from a display window 110 provided substantially at the center of the surface of the piano handle 43;
The driving piece 71 for sliding the display body 70 with the rotation of the light emitting element 81, the light emitting element 81 provided on the push button switch 5, and the end of the surface of the piano handle 43 on which the light of the light emitting element 81 is displayed. It is characterized by being provided with an optical display window 111 provided.

It is also preferable that the display body 70 is configured to be movable in a direction orthogonal to the pivotal direction of the piano handle 43.

[0008]

According to the present invention having the above-described structure, the display body 70 which is slidably attached to the piano handle 43 and displays the contact switching state from the display window 110 provided substantially at the center of the surface of the piano handle 43. And the display body 70 formed on the reversing handle 31 as the reversing handle 31 rotates.
, A light emitting element 81 provided on the push button switch 5, and a light display window 11 provided at an end of the surface of the piano handle 43 on which light from the light emitting element 81 is displayed.
1, the contact can be switched by the display 70 by pressing the piano handle 43 to invert the reversing handle 31 and inverting the contact, and the light emitting element 81 can simultaneously display the switching of the contact. Also, through the optical display window, it is possible to display whether or not the load is energized or the above-mentioned contact switching. In addition, a display window 110 for displaying the display body 70 is provided substantially at the center of the surface of the piano handle 43, while a light display window 11 for displaying light of the light emitting element 81.
1 is provided at the end of the surface of the piano handle 43, the display of the display 70 is at the most prominent position of the piano handle 43, and the display of the display 70 is not affected by the light of the light emitting element 81. The light display window 111 can be visually recognized even if it is provided at the end of the surface of the piano handle 43 because it is displayed by light.

[0009]

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 9 show an embodiment of the present invention. First, the basic structure of the piano handle switch will be described. FIG. 1 shows a piano handle switch according to this embodiment.
Alternatively, as shown in FIG. 2, a push button switch 5 in which contact switching is performed by a push operation of the push button 32, one end of which is rotatably supported on the upper surface of the push button switch 5, and the other end thereof is pressed to push the push button 32. And a piano handle 43 for pressing.

The body of the push button switch 5 is formed of a body 5a made of synthetic resin and a cover 5b, and is formed in a module size of a standardized ready-made embedded wiring device. The cover 5b is provided with a pair of locking claws 11a and 11b on both end surfaces thereof so as to be detachably attachable to the mounting frame 2 used for burying a ready-made wiring device. A space 1 is provided at the back of one locking claw 11b.
2, so that the locking claw 11b is elastically bent back. Accordingly, the push button switch 5 can be removably mounted by locking the locking claws 11a and 11b to the mounting frame 2 for a ready-made wiring device. It can be buried on the construction side.

Connection terminal storage portions 13 and 14 are formed at both ends in the body 5a of the push button switch 5, and a central storage portion 23 is formed between the connection terminal storage portions 13 and 14. Here, the one connection terminal storage portion 13 stores a common terminal plate 15 and a quick-connecting terminal including a locking spring (not shown) and a release button. In the other connection terminal storage part 14, a first connection terminal part comprising a terminal plate 18 and a locking spring (not shown) and a second connection terminal part comprising a terminal plate 20 and a locking spring (not shown) are stored. The first and second connection terminals can be commonly released by a release button (not shown).

An extended piece 18a to which a fixed contact 25a is fixed is formed on the terminal plate 18, and the extended piece 18a extends toward the central storage portion 23 near the partition wall 60a.
Also, a bent piece 20a to which a fixed contact 25b is fixed is formed on the terminal plate 20, and the bent piece 20a is opposed to the extended piece 18a of the terminal plate 18 so as to face the central storage portion 23.
It extends to the side.

An opening / closing body 24 made of a conductive plate is rotatably provided between the fixed contacts 25a and 25b. The opening / closing body 24 is erected on a support piece 15 a extending from the common terminal plate 15 to the central storage section 23, and projections (not shown) provided at lower portions on both ends are formed on the inner side wall of the central storage section 23. It fits into the V-shaped recess 27 and is rotatable about the lower part of the V-shaped recess 27. The movable contact 29 provided on both upper surfaces of the opening / closing body 24 is fixed to the fixed contact 2 in accordance with the rotation.
The connection / disconnection between the common connection terminal portion and the first or second connection terminal portion is performed by coming into contact with and separating from the connection terminals 5a and 25b.

The opening / closing body 24 includes a coil spring (not shown), a reversing handle 31, a push button 32, and a slide cam 3.
3. The reversing mechanism is constituted by a reversing spring 37 and is driven to be reversed. Here, the lower part of the coil spring is locked to the upper edge of the opening / closing body 24, and the upper part is housed in a cylindrical part 31 a projecting from below the reversing handle 31. The opening / closing body 24 is driven in reverse. The reversing handle 31 is rotatably mounted by pivotally supporting an inverted triangular shaft 31b provided on both sides on a bearing (not shown) formed on the inner wall of the cover 5b. The projection 34 is provided in a protruding manner. 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 on the lower surface of 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 therein. A pair of spring pieces 3
A projection 32a formed on the lower surface of the push button 32 is inserted between the pins 3a, and the spring piece 33a gives a restoring force.

The piano handle 43 has a pair of turning pieces 43a suspended from the lower surface on the pivot end side, and a pair of retaining pieces 43b for preventing the push button switch 5 from falling off from the lower surface on the pressing operation end side. It is set up. 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 when the pushing operation end side of the retaining piece 43b is pressed, the rotating piece 43a is moved. It pivots in a piano touch manner as a fulcrum. Then, by turning the piano handle 43, the push button 32 of the push button switch 5 is pressed.

Next, the operation of the push button switch 5 will be briefly described with reference to FIGS. 3 shows a state in which no operation is performed on the piano handle 43, FIG. 5 shows a state in which the pressing operation end of the piano handle 43 is fully pressed, FIG. 4 shows an operation state in the middle thereof, and FIG. 8 shows a state in which the pressing operation of the piano handle 43 is released and the piano handle 43 is returned, and FIG.
3 shows a state in which the pressing operation end of FIG. 3 is fully pressed again, and FIG. 7 shows an operation state in the middle of FIG. 6 and FIG.
8 shows a state in which the pressing operation of the piano handle 43 is released in the state of FIG. 8 and the piano handle 43 is returned. Now, assuming that the piano handle 43 is operated in the state of FIG. 3, the push button 32 is pressed down against the return spring 37 in accordance with the operation of the piano handle 43 as shown in FIG.
As a result, the slide cam 33 is lowered. Then, the engagement cam body 38 on the right side of the slide cam 33 in the drawing is
By hitting the engaging protrusion 34 on the right side of the reversing handle 31, the reversing handle 31 is rotated. At this time, the slide cam 33 is slid to the right in FIG. When the reversing handle 31 is rotated in the reverse direction in this way, the coil spring is reversed and the opening / closing body 24 is reversed, and the movable contact 29 is connected to the one fixed contact 2.
5b, and comes into contact with the other fixed contact 25a (see FIG. 5). After this reversal, when the pressing force of the piano handle 43 is released, the push button 32 is pushed up by the return spring 37 as shown in FIG. 6, and the piano handle 43 returns to the original state at this time. And at the same time, slide cam 3
3 also returns to the center by the spring force of the spring piece 33a. Thereafter, when the piano handle 43 is operated again as shown in FIG. 7, the reversing handle 31 is reversed and rotated in the reverse direction as shown in FIG.
Contact switching is performed so that 9 contacts the fixed contact 25b. 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 the display section for displaying the contact switching state, which is a feature of the present embodiment, will be described. A sliding recess 76 is provided in the piano handle 43, and a display 70 is slidably fitted in the sliding recess 76. At the end of the display 70, an operation surface 70b whose lower surface is inclined is provided. And this display body 7
Numeral 0 is elasticized by the coil spring 78 toward the left side in FIG. A display window 110 is provided substantially at the center of the surface of the piano handle 43, and when the display 70 slides, the colors and characters provided on the surface of the display 70 are displayed from the display window 110. Has become. An optical display window 111 is provided at an end of the surface of the piano handle 43. On the other hand, a driving piece 71 for sliding the display body 70 is formed integrally with the reversing handle 31, and this driving piece 71 has a substantially L shape and is inserted into the hole 73 of the cover 5b. . LED is inside the cover 5b of the push button switch 5.
A light-emitting element 81 such as a lamp or a neon lamp is provided. The light-emitting element 81 displays, for example, the energized state of a load or the switching of the contact of the push-button switch 5.

FIGS. 3 to 8 show the driving state of the display 70. FIG. In the state of FIG. 3, the upper end of the driving piece 71 is located near the lower end of the inclined operation surface 70b. When the piano handle 43 is pressed in this state, the reversing handle 31 rotates, and the upper end of the driving piece 71 provided integrally with the reversing handle 31 rises as shown in FIG.
0b, the display 70 is guided by the inclined surface 70b and moves as shown by the arrow in FIG. 4, the surface position of the display 70 facing the display window changes, and the piano handle 43 is completely moved. At the time when the reversing handle 31 completes the reversing rotation and contacts are exchanged, the upper end of the driving piece 71 is simultaneously engaged with the rising surface continuous with the inclined upper end of the operating surface 70b as shown in FIG. Stopped and locked,
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 the figure) faces the display window. In this state, as shown in FIG. 6, a state in which the movable contact 29 is in contact with the left fixed contact 25a is displayed from the display window. Then, when the piano handle 43 is further pressed, the reversing handle 31 is reversed and rotated in the reverse direction,
Accordingly, the tip of the driving piece 71 is lowered, the locking means is released, and the driving piece 71 is lowered, so that the display 7
7 is returned by the spring force of the coil spring 78 as shown in FIGS. 7 and 8, and returns to the state of FIG. 3 when the press of the piano switch is released. In this state, the movable contact as shown in FIG. 29 contacts the right-side fixed contact 25b, and another part of the surface of the display 70 (in FIG.
(The right half of the surface portion) faces the display window 110. In this state, as shown in FIG. 3, a state in which the movable contact 29 is in contact with the right fixed contact 25b is displayed from the display window. The contact switching state is displayed on the display 70 in this manner. In this case,
As shown in FIG. 9, "strong" or "weak"
Or "On", "Off", or "On", "Off", for example, "Strong" or "Weak" , "Strong" is written on one side of the surface of the display 70 and "weak" is written on the other side, and "strong" is displayed from the display window 110 in response to contact switching. Flipping or "weak" is displayed. On the other hand, for example, the energized state of the load is displayed by the light emitting element 81,
Alternatively, the contact switching of the push button switch 5 is displayed as light. In this case, the light of the light emitting element 81 is displayed from the light emitting display window 111 of the piano handle 43.

As described above, the display handle 110 is provided at a substantially central portion of the piano handle 43 which is separated from the light display window 111 which performs light display on the display window 110 for performing display by the display body 70. At the center of the piano handle 43, which is the most prominent position of the piano handle 43, without being distracted by the display of light,
The display of the contact switching state on the display body 70 can be confirmed visually.

In FIGS. 1 and 2, reference numeral 83 denotes a two-layer coil, 85 denotes a primary lead, 86 denotes a secondary lead, and 88 denotes a printed wiring board.

[0021]

As described above, the present invention is formed on a display body which is slidably attached to a piano handle and which displays a contact switching state from a display window provided substantially at the center of the surface of the piano handle, and a reversing handle. A driving piece for sliding the display with the rotation of the reversing handle, a light emitting element provided on the push button switch, and a light provided on an end of a surface of the piano handle on which light of the light emitting element is displayed. Since a display window is provided, pressing the piano handle to invert the reversing handle to switch contacts makes it possible to simultaneously display the contact switching by the display, and also to load the light emitting element through the light display window. In displaying the presence or absence of energization or switching of the above-mentioned contact, the display window of the display body is arranged at the end of the piano handle as compared to the conventional display window adjacent to the optical display window of the optical element. Is displayed at the most prominent position of the piano handle, and the display on the display can be checked accurately with the eyes without being affected by the light of the light emitting element. The light display window is located at the edge of the surface of the piano handle. Even if it is provided in the section, there is an advantage that the display can be surely visually recognized because of the display by light.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state in which a movable contact is in contact with one fixed contact in a piano handle switch according to one embodiment of the present invention.

FIG. 2 is a cross-sectional view of the same piano handle switch in which a movable contact is in contact with another fixed contact.

FIG. 3 is a cross-sectional view for explaining the operation sequence of the above.

FIG. 4 is a cross-sectional view for explanation showing the operation sequence of the above.

FIG. 5 is a cross-sectional view for explaining the operation sequence of the above.

FIG. 6 is a cross-sectional view for explaining the operation sequence of the above.

FIG. 7 is a cross-sectional view for explaining the operation sequence of the above.

FIG. 8 is a cross-sectional view for explaining the operation sequence of the above.

FIGS. 9A and 9B are plan views each showing an example of a piano handle switch.

FIG. 10 is a sectional view of a conventional example.

[Explanation of symbols]

 Reference Signs List 5 push button switch 31 inversion handle 32 push button 43 piano handle 70 display body 71 drive piece 81 light emitting element 110 display window 111 light display window

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01H 21/00 H01H 23/02 H01H 13/02 H01H 9/16

Claims (2)

(57) [Claims] A push button switch for reversing and rotating a reversing handle in accordance with the pushing operation of the push button, and performing contact switching in accordance with the reversing rotation of the reversing handle; A piano handle attached to the upper part of the switch and pressing the push button by a piano touch operation, and a display for slidably attached to the piano handle and displaying a contact switching state from a display window provided substantially at the center of the surface of the piano handle. A body, a driving piece formed on the reversing handle for sliding the display with the rotation of the reversing handle, a light emitting element provided on the push button switch, and a surface of a piano handle on which light of the light emitting element is displayed. 3. A piano switch with a contact switching display function, comprising a light display window provided at an end of the switch. 2. A piano switch with a contact switching display function according to claim 1, wherein the display body is movable in a direction orthogonal to the pivotal support direction of the piano handle.