JPH05325724A - Piano switch with contact change-over display function - Google Patents

Abstract

PURPOSE:To display a contact change-over state in a piano handle type switch with a simple structure. CONSTITUTION:A display body 70 for displaying a contact change-over state is mounted on a piano handle 43 in such a manner as to be capable of sliding. The sliding direction of the display body 70 is set in the direction parallel to the rotating direction of a reverse handle 31. The reverse handle 31 has a driving piece 71 for driving the display body 70 in accordance to the rotation of the reverse handle 31. Thus, the display body 70 is slid in the direction parallel to the rotating direction of the reverse handle 31 by the rotation of the reverse handle 30 to display the contact change-over.

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 unit for displaying a switching state of a piano handle type switch whose contacts are switched by touching the piano.

[0002]

2. Description of the Related Art As a piano handle type switch whose contacts are switched by a piano touch operation, for example, there is one shown in FIG. In this piano handle type 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 open / close body 24 is rotatably movable by opening / closing the open / close body 24 standing between the fixed contacts 25a and 25b. The fixed contacts 25a and 25b are brought into contact with each other and opened to switch the contacts. The opening / closing body 24 rotates in the same manner as in the embodiment of the present invention.
Detailed description will be given in the description of the embodiments, and only a schematic description will be given here. That is, the piano handle 4
3 is operated, the push button 32 is pushed down in response to the operation of the piano handle 43, and the reversing handle 31 is moved by the slide cam 33 that descends as the push button 32 descends.
Is inverted and rotated, and the opening / closing body 24 is rotated 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 the piano handle type switch of this type, the piano handle 4 is used.
When the pressed state of No. 3 is released, the piano handle 43 always returns to the state before pressing, so that the contact switching state cannot be grasped. Therefore, in the conventional piano handle type switch of this kind, it is necessary to display the contact switching state by some method, and for example, there is provided one having a built-in display circuit which lights up according to the contact switching state. However, when the display circuit is built in, there are problems that the cost becomes high and the internal structure becomes complicated.

The present invention has been made in view of the above-mentioned points, and an object thereof is to drive the display body by utilizing the rotation of the reversing handle with a simple contact switching state. The name can be displayed, the cost can be reduced, and a display window is provided in a part of the name plate provided in the center of the piano handle to effectively display the contact switching in relation to the matters described on the name plate. It is to provide a piano switch with a contact switching display function that enables the above.

[0006]

In order to achieve the above object, the piano switch with contact switching display function of the present invention has a reversing handle 31 when the push button 32 is pushed in, when the push button 32 is pushed. A push button switch 5 whose contacts are switched according to the reverse rotation of the reverse handle 31, and a piano handle 43 which is mounted on the push button switch 5 and presses the push button 32 by a piano touch operation. And a display body 70 slidably attached to the piano handle 43 in a direction parallel to the direction of rotation of the reversing handle 31 for displaying a contact switching state, and for revolving the reversing handle 31 formed on the reversing handle 31. Along with this, display means for displaying contact switching is constituted by a drive piece 71 for driving the display body 70.

Further, the display body 70 is formed of an elastic sheet, the display body 70 is slidably fitted in the sliding recess 76 of the piano handle 43, and one end portion of the display body 70 is a driving piece 71. It is also preferable that it is attached to the.

[0008]

According to the present invention having the above-described structure, however, the display body 70 slidably attached to the piano handle 43 in the direction parallel to the direction in which the reversing handle 31 rotates, and displaying the contact switching state, By configuring the display means for displaying the contact switching with the driving piece 71 which is formed on the reversing handle 31 and drives the display body 70 according to the rotation of the reversing handle 31, the contact switching is performed by the movement of the reversing handle 31. Further, in this case, by making the sliding direction of the display body 70 parallel to the rotation direction of the reversing handle 31, the turning force of the reversing handle 31 can be used to provide a simple structure for the display body. 70 can be slid. The name card 100 is placed in the center of the piano handle 43.
When the display window 110 is provided in a part of the name card 100, the contact switching can be displayed in relation to the matters described in the name card 100. For example, when the name card 100 describes "air conditioner", the display window 110 is provided right next to the part described as "air conditioner", and "O" is displayed on the surface of the display body 70.
It is described as “N” and “OFF”, and by sliding the display body 70, whether the “air conditioner” is on or off is displayed in the display window 110 as “ON” or “OFF”. It is possible to do something like this.

Further, the display body 70 is formed of a sheet having elasticity, the display body 70 is slidably fitted in the sliding recess 76 of the piano handle 43, and one end portion of the display body 70 is driven by a drive piece 71. When the display body 70 is attached to the display body 70, the movement of the reversing handle 31 can be directly converted into the movement of the display body 70 and the display body 70 can be slid.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. 1 to 16 show an embodiment of the present invention. First, the basic structure of the piano handle type switch will be described. The piano handle type switch of this embodiment is
As shown in FIG. 1 or 2, a push button switch 5 whose contacts are switched by pushing the push button 32, and one end of which is rotatably supported on the upper surface of the push button switch 5 and the other end of which is pushed. It is composed of a piano handle 43 for pressing the push button 32.

The body of the push button switch 5 is composed 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 mountable to the mounting frame 2 used when burying a ready-made wiring device. Space 1 is provided on the back of one of the locking claws 11b.
2 is formed so that the locking claw 11b elastically bends backward. Therefore, the push button switch 5 can be removably attached by locking the locking claws 11a and 11b to the mounting frame 2 for the ready-made wiring device, and like the ready-made embedded wiring device, such as a wall surface. It is designed so that it can be buried on the construction surface.

Connection terminal accommodating portions 13 and 14 are formed at both ends of the body 5a of the push button switch 5, and a central accommodating portion 23 is formed between the connection terminal accommodating portions 13 and 14. Here, the common terminal plate 15 and a quick-connect terminal including a lock spring and a release button (not shown) are housed in one of the connection terminal housings 13. Further, the other connecting terminal housing portion 14 houses a terminal plate 18 and a first connecting terminal portion including a locking spring (not shown) and a second connecting terminal portion including a terminal plate 20 and a locking spring (not shown). The first and second connection terminal portions can be released in common by a release button (not shown).

An extension piece 18a to which a fixed contact 25a is fixed is formed on the terminal plate 18, and the extension piece 18a is extended to the side of the central storage portion 23 near the partition wall 60a.
Further, a bent piece 20a to which a fixed contact 25b is fixed is also formed on the terminal plate 20, and the bent piece 20a faces the extended piece 18a of the terminal plate 18 and is disposed in 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 15a extending from the common terminal plate 15 to the central storage portion 23, and protrusions (not shown) provided at the lower ends of both ends are formed on the inner wall of the central storage portion 23. It fits into the V-shaped recess 27 and is rotatable around the lower portion of the V-shaped recess 27. Then, the movable contacts 29 provided on both upper surfaces of the opening / closing body 24 are moved to the fixed contacts 2 in response to the rotation.
The common connection terminal portion and the first or second connection terminal portion are connected to and separated from each other by contacting and separating the 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 composed of the return spring 37 reversely drives. Here, the lower part of the coil spring is locked to the upper edge of the opening / closing body 24, and the upper part thereof is housed in a cylindrical portion 31 a projecting from the lower side of the reversing handle 31, and depending on the rotation of the reversing handle 31. To open and close the opening and closing body 24. The reversing handle 31 is rotatably mounted by pivotingly supporting an inverted triangular shaft 31b provided on both sides on a bearing (not shown) formed on the inner wall of the cover 5b, and engaging with a slide cam 33 at both ends of the upper part. A protrusion 34 is provided so as to project. The push button 32 is attached to the cover 5b so as to be vertically movable, and is constantly urged upward by a return spring 37 arranged below. Engaging cam bodies 38 that slidably engage with the engaging protrusions 34 of the reversing handle 31 are formed on the lower surfaces of both ends of the slide cam 33. A pair of spring pieces 3
A protrusion 32a formed on the lower surface of the push button 32 is inserted between 3a, and a restoring force is given by the spring piece 33a.

As shown in FIG. 9, the piano handle 43 is provided with a pair of rotating pieces 43a vertically extending from the lower surface on the pivotal end side, and for preventing 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 vertically provided. The rotating piece 43a is engaged with the recess 54 formed in the cover 5b, the retaining piece 43b is inserted into the space 12, and the retaining piece 4a.
When the pressing operation end side on the 3b side is pressed, it rotates in a piano touch type with the rotating 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.

Next, the operation of the push button switch 5 will be briefly described with reference to FIGS. 6 shows a state in which the piano handle 43 is not operated at all, FIG. 5 shows a state in which the pressing operation end of the piano handle 43 is fully pushed, and FIG. 4 shows an operating state in the middle thereof. Shows a state in which the pressing operation of the piano handle 43 has been released and the piano handle 43 has returned, and FIG.
3 shows a state in which the pressing operation end of is completely pushed again, and FIG. 7 shows an operating state in the middle of FIGS. 6 and 8.
In the state of FIG. 8, the pressing operation of the piano handle 43 is released and the piano handle 43 is returned. If the piano handle 43 is operated in the state shown in FIG. 3, the push button 32 is pushed down against the return spring 37 in accordance with the operation of the piano handle 43 as shown in FIG.
The slide cam 33 is lowered by pushing down. The engaging 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 slides to the right side in the drawing as the reversing handle 31 rotates. When the reversing handle 31 is revolved in this manner, the coil spring is reversing, the opening / closing body 24 is reversing, and the movable contact 29 becomes the fixed contact 2 of one side.
It is separated from 5b and comes into contact with the other fixed contact 25a (see FIG. 5). After this reversal, when the pushing down 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 at this time the piano handle 43 returns to the original state. And at the same time, slide cam 3
3 also slides back to the central portion by the spring force of the spring piece 33a. After that, when the piano handle 43 is operated again as shown in FIG. 7, the reversing handle 31 is reversibly rotated in the opposite direction to the above case as shown in FIG.
Contact switching is performed so that 9 contacts the fixed contact 25b, and when the pressing force of the piano handle 43 is released, the state of FIG. 3 is restored again.

The above is the description of the piano handle type switch which is the basis of the present embodiment, but the structure of the display section for displaying the contact switching state, which is the feature of the present embodiment, will be described below. As shown in FIG. 9, the piano handle 43 has a T
A sliding recess 76 having a character shape is provided, and this T-shaped sliding recess 76 has one side portion 76A opened to the back side and the central portion 76B opened to the front side. is there. A T-shaped display body 70 is slidably fitted in the sliding recess 76. That is, the horizontal piece 70 of the T-shaped display body 70.
A is slidably fitted into one side portion 76A of the sliding recess 76, and the display piece 70B of the T-shaped display body 70 is slid into the sliding recess 76.
It is slidably fitted in the central portion 76B of the. A name card 100 fitting recess 113 is provided on the front side of the piano handle 43, and a central portion 76B of the sliding recess 76 is opened at the bottom of the name card 100 fitting recess 113. A guide projection 70a is provided on the back surface of the display body 70, and the display body 7 is provided on the back surface of the guide projection 70a.
An operation surface 70b inclined in the sliding direction of 0 is formed.
Reference numeral 77 in the figure denotes a pressing plate, which is attached to the back surface of the piano handle 43 so as to cover a part of the sliding recess 76 except the moving range of the guide protrusion 70a, and prevents the display body 70 from coming off. It is supposed to do. In this pressing plate 77, the heat-bonding pins 107 provided on the piano handle 43 are fitted into the heat-bonding holes 108 of the pressing plate 77, and the heat-bonding pins 107 are welded and fixed. Piano handle 43 and pressing plate 7
7 is provided with a coil spring fitting groove, and a part of the coil spring 78 is fitted therein, and an end portion of the coil spring 78 is provided at one end portion of the display body 70 in the sliding direction. Is fitted to the coil spring 7.
A spring force of 8 is applied to the display body 70 in one direction by the spring force of 8, and this constitutes a returning means of the display body 70. On the other hand, a drive piece 71 for sliding the display body 70 is formed integrally with the reversing handle 31, and the drive piece 71 is substantially L-shaped and has a hole 7 formed in the cover 5b.
The tip portion of the drive piece 71 is inserted into the drive shaft 3. The name card 100 is fitted into the name card fitting recess 113, and further, the name cover 130 is fitted thereon. The central portion of the name cover 130 is transparent.
In the name card 100, for example, as shown in FIG. 16, an object for opening and closing the contacts of the piano switch is displayed by characters or the like, and the characters or the like are displayed next to or between characters (the central portion in the illustrated embodiment). Display hole 110 (may be a transparent part)
Is provided, and "ON" or "OFF" described on the surface of the display body 70 that slides so as to change its position by switching contacts.
The display of contact switching such as is displayed through the display hole 110.

In the state shown in FIG. 3, the operation surface 7 is inclined.
The upper end of the drive piece 71 is located near the lower end of the inclined portion 0b. When the piano handle 43 is pressed in this state, the reversing handle 31 is rotated so that the upper end of the driving piece 71 provided integrally with the reversing handle 31 is raised and pressed against the inclined operation surface 70b as shown in FIG. The display body 70 is guided by the inclined surface 70b and moves as shown in FIG.
The surface position of the display body 70 facing 10 changes,
Push down the piano handle 43 completely to flip the handle 3
As shown in FIG. 5, at the time point 1 when the reverse rotation is completed and the contacts are exchanged, at the same time, the upper end of the driving piece 71 is locked by locking the rising surface continuous to the inclined upper end of the operation surface 70b. This is the locking means. In this locked state, even when the piano handle 43 is released, the locked state is maintained as shown in FIG. In this state, a part of the surface of the display body 70 faces the display window 110. In this state, as shown in FIG. 6, the state where the movable contact 29 is in contact with the left fixed contact 25a is displayed from the display window 110. And
Further, when the piano handle 43 is pressed, the reversing handle 31 reversely rotates in the opposite direction.
The tip of 1 is lowered downward, the locking means is released, and the driving piece 71 is lowered, so that the display body 70 is returned by the spring force of the coil spring 78 as shown in FIGS. 7 and 8, and the piano handle 43 is pressed. When the state is released, the state returns to the state of FIG. 3, and in this state, the movable contact 29 contacts the right fixed contact 25b as shown in FIG. Opposite the display window. This state is a state in which the movable contact 29 is in contact with the fixed contact 25b on the right side as shown in FIG. In this way, the contact switching state is displayed on the display body 70 in this way, and in this case, FIG.
As shown in FIG. 5, load names such as “air conditioning”, “lighting”, and “air conditioning” are written on the name card 100, and “strong”, “weak” or “large” “small” or “O” is displayed on the display body 70.
By describing the operation switching (contact switching) of "N" and "OFF" and the load name, the name card 1 can be changed according to the contact switching.
00 is displayed on the display window 110, "strong" is displayed, "weak" is displayed, or "large".
"Small", "ON", or "OFF" may be displayed.

By the way, the display body 70 has the inverted handle 31.
If you slide it in the direction parallel to the rotating direction of
When the display body 70 is slid by the driving piece 71 formed integrally with the reversing handle 31, smooth sliding can be performed by a simple mechanism. Further, for example, the strength change switch of the air conditioner as in the above embodiment, etc. When a three-way switch is used as, the direction in which the contact is made and the display can be linked. Further, in this embodiment, the length of the display window shown by a in FIG. 10 can be increased.

17 to 32 show another embodiment of the present invention. In this embodiment, the sliding recess 76 provided in the piano handle 43 has one side portion 76A opened to the back side and the central portion 76B opened to the front side. A sheet-shaped display body 70 having elasticity such as a polyester film is slidably fitted in the sliding recess 76. Then, as shown in FIG. 25, the connecting portion 132 at one end of the elastic sheet-like display body 70 is attached to the C-shaped attaching portion 131 of the tip end portion of the drive piece 71 provided in the reversing handle 31. Yes, inverted handle 31
When the driving piece 71 is driven by the reversal driving, the sheet-like display body 70 having elasticity is directly pulled or pushed by the driving piece 71 to slide in the sliding recess 76. Reference numeral 133 in the drawing denotes a bending guide provided in the sliding recess 76, and the sheet-like display body 31 having elasticity is bent at the tip of the bending guide 133. In this embodiment, the display body 70 is formed of an elastic sheet, the display body 70 is slidably fitted in the sliding recess 76 of the piano handle 43, and one end portion of the display body 70 has a driving piece 71. With the structure attached to the display body 70, the movement of the reversing handle 31 can be directly converted into the movement of the display body 70 and the display body 70 can be slid, so that the mechanism is simple and the movement is smooth.

19 to 24 show the operation of this embodiment. FIG. 19 shows a state in which the piano handle 43 is not operated at all, FIG. 20 shows a state in which the pressing operation end of the piano handle 43 is fully pushed, FIG. 21 shows an operating state in the middle thereof, and FIG. 21 shows a piano. FIG. 24 shows a state in which the pressing operation of the handle 43 has been released and the piano handle 43 has returned, FIG. 24 shows a state in which the pressing operation end of the piano handle 43 has been fully pressed again, and FIG. 19 shows the operating state in FIG.
In this state, the pressing operation of the piano handle 43 is released and the piano handle 43 is returned. Since the specific contact exchange operation is the same as that of the embodiment shown in FIGS. 3 to 8, the detailed description will be omitted. Further, the elastic sheet-shaped display body 70 can be changed in position in accordance with the reversing operation of the reversing handle 31 by the operation of the piano handle 43 as shown in FIGS. I have to.

In this embodiment, as shown in FIG. 25, the name card 100 has a concave shape, and the cutout portion is a display window 110. The name card 100 is arranged side by side with the display window 110. The load names such as “air conditioning”, “lighting”, “air conditioner”, etc. are described, and “strong”, “weak” or “large”, “small” or “O” is displayed on the display body 70.
It is described as "N" and "OFF". Then, by selecting and combining these, it is possible to variously display the switching of the load operation (contact switching) along with the load names shown in FIGS. Another display example may be as shown in FIG.

[0024]

As described above, the present invention has a display body slidably attached to a piano handle in a direction parallel to the direction in which the reversing handle is rotated and displaying a contact switching state; Since the display means for displaying the contact switching is constituted by the driving piece for driving the display body according to the rotation of the handle, the display body is slid with a simple structure by utilizing the turning force of the reversing handle. It is possible. And if a name card etc. is provided in the center of the piano handle, if a display window is provided in a part of this name card,
It is also possible to display the operation of the load (display of contact switching) corresponding to the load written on the name card.

Further, when the display body is formed of an elastic sheet, the display body is slidably fitted in the sliding recess of the piano handle, and one end portion of the display body is attached to the driving piece. The movement of the reversing handle can be directly converted into the movement of the display body so that the display body can be slid.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional view showing a state where a movable contact is in contact with the other fixed contact in the piano handle switch of the above.

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

FIG. 4 is a sectional view for explaining the operation sequence of the above.

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

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

FIG. 9 is an exploded perspective view of a piano handle portion of the above.

FIG. 10 is an exploded plan view of a piano handle switch and a push button switch when there is one push button switch of the above.

FIG. 11 is an exploded plan view of a piano handle switch and a push button switch when there are two push button switches of the same.

FIG. 12 is an exploded plan view of another embodiment of the piano handle switch and the push button switch when there are two push button switches of the same.

FIG. 13 is an exploded plan view of a piano handle switch and a push button switch when there are three push button switches of the same.

FIG. 14 is an exploded plan view of an embodiment of a piano handle switch and a push button switch when there are three push button switches of the same.

FIG. 15 is an exploded plan view of another embodiment of the piano handle switch and the push button switch when there are three push button switches.

FIG. 16 is an exploded plan view of the name card and the display body of the above.

FIG. 17 is a sectional view showing a state where a movable contact is in contact with one fixed contact in a piano handle switch according to another embodiment of the present invention.

FIG. 18 is a cross-sectional view showing a state where the movable contact is in contact with the other fixed contact in the piano handle switch of the above.

FIG. 19 is a sectional view for explaining the operation sequence of the above.

FIG. 20 is a sectional view for explaining the operation sequence of the above.

FIG. 21 is a sectional view for explaining the operation sequence of the above.

FIG. 22 is a sectional view for explaining the operation sequence of the above.

FIG. 23 is a sectional view for explaining the operation sequence of the above.

FIG. 24 is a sectional view for explaining the operation sequence of the above.

FIG. 25 is a partially exploded perspective view of the above.

FIG. 26 is an exploded plan view of a piano handle switch and a push button switch in the case where there is one push button switch of the above.

FIG. 27 is an exploded plan view of a piano handle switch and a push button switch when there are two push button switches of the same.

FIG. 28 is an exploded plan view of another embodiment of the piano handle switch and the push button switch when there are two push button switches of the same.

FIG. 29 is an exploded plan view of the piano handle switch and the push button switch in the case where there are three push button switches.

FIG. 30 is an exploded plan view of another embodiment of the piano handle switch and the push button switch when there are three push button switches of the same.

FIG. 31 is an exploded plan view of another embodiment of the piano handle switch and the push button switch when there are three push button switches of the same.

FIG. 32 (a) is an exploded plan view of the same name card and display body as the above, and FIG. 32 (b) is an exploded plan view of another embodiment of the same name card and display body as above.

FIG. 33 is a sectional view of a conventional example.

[Explanation of symbols]

 5 push button switch 31 reverse handle 32 push button 43 piano handle 70 display 71 drive piece 76 sliding recess

Claims (2)

[Claims] 1. A push button switch which, when a push button is pushed in, reversely turns a reversing handle in accordance with the pushing operation of the push button, and switches contacts according to the reversing turning of the reversing handle, and the push button. A display body provided with a piano handle that is attached to the upper part of the switch and presses the push button by a piano touch operation, and is slidably attached to the piano handle in a direction parallel to the direction in which the reversing handle is rotated to display a contact switching state. And a driving means which is formed on the reversing handle and drives the display body in accordance with the rotation of the reversing handle, and constitutes display means for displaying contact switching, and a piano switch with a contact switching display function. .. 2. The display body is formed of a sheet having elasticity, the display body is slidably fitted in a sliding recess of a piano handle, and one end portion of the display body is attached to a drive piece. The piano switch with contact switching display function according to claim 1.