JP2006202716A - Switch with display and switching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve operability of a contact device by conforming an indicating position and an operating direction of an operating handle, even in the case a change-over one is used. <P>SOLUTION: At a backward shifting end of an operating handle 60, an end part of a light-shielding body 84 is overlapped with one of the light-shielding parts 27 fitted at the end side against the rocking fulcrum of the operating handle 60 to cut off a light path between a position indicating lamp 71 and a beam-condensing part 92 of a prism 90. Further, at a forward shifting end, an end part of the light-shielding body 84 is not overlapped with the other light-shielding part 27 fitted to that end part side against the operating handle 60, not cutting off the light path between the position indicating lamp 71 and the beam-condensing part 92 of the prism 90. Therefore, light of the position indicating lamp 71 is irradiated only from an indicating face of an indicating part 91 fitted at that end of the operating handle 60 to be operated next, the indicating position and the operating direction of the operating handle 60 can be completely conformed with each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a switch with a display having a function of displaying the position of an operation portion, and a switch device including a switch with a display and a plate.

2. Description of the Related Art Conventionally, a switch (a switch with a display) including a display unit that displays a position of an operation part by lighting with an electric circuit voltage is provided. FIG. 22 is a front view of the switch with display 200 disclosed in Patent Document 1. FIG. The switch with display 200 includes a container body 201 in which a contact device and a light emission source (for example, a neon lamp) are housed, and a reversing handle that is mounted on the container body 201 so as to be swingable and opens and closes the contact device. And a rectangular operation handle 202 that covers the front surface of the reversing handle and is coupled to the reversing handle. The switch that opens and closes the contact device via the reversing handle by operating the operation handle 202 in two opposite directions. (Tumbler switch), which is configured as a switch whose operability is improved by making the operation handle 202 larger than the front surface of the body 201 (this type of switch is generally referred to as a “wide handle switch”). Yes. One of the left and right end portions on the front surface of the operation handle 202 (right end portion in the illustrated example) is provided with a display unit 203 that displays the operation part of the operation handle 202 by irradiating light emitted from the light source forward. When power is not supplied from the power source to the load, the light emission source housed in the container 201 emits light, and display on the display unit 203 is performed.
Japanese Patent Laid-Open No. 2003-151402

  By the way, in the above conventional example, when the contact device is configured as a single-pole switch or a two-pole switch having a single-pole single-throw or double-pole single-throw contact configuration, the operation state of the load and the operation state of the operation handle 202 Therefore, the operation state of the load can be switched by pressing the end of the operation handle 202 on the side where the display by the display unit 203 is performed. The display by the display unit 203 and the operation handle 202 can be switched. It is possible to always match the operation direction. However, when the contact device is configured as a three-way switch or a four-way switch having a switching type (single-pole switching type or two-pole switching type) contact configuration, the operation state of the load and the operation state of the operation handle 202 Therefore, there is a situation where the display on the display unit 203 and the operation direction of the operation handle 202 do not match. In particular, in the case of a wide handle type switch, since the operation handle 202 is enlarged, the distance between the end on the side where the display unit 203 is provided and the end on the side where the display unit 203 is not provided becomes large. Therefore, the operability is liable to be impaired because the display on the display unit 203 and the operation direction of the operation handle 202 do not match.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a switch with a display that improves the operability by matching the display position of the operation handle and the operation direction even when a switching contact device is used. And providing a switch device.

  In order to achieve the above object, the invention according to claim 1 is directed to a switch body in which a switching-type contact device is housed in a container, and a light-emitting source that emits light at a voltage generated between the switching contacts of the contact device provided in the switch body. And an operation handle having at least a dimension in the short width direction that is substantially the same as or larger than the front surface of the switch body and is pivotably disposed on the front surface side of the switch body with a substantially center as a fulcrum. Two display units provided at both ends for emitting light from the light source to the outside through the display surface and a light guide for guiding the light from the light source to the display surfaces of the two display units between the switch body and the operation handle. And a prism having an optical part.

  According to the present invention, when the power supply from the power source to the load is stopped, the light emission source emits light, and the light is guided to the light collecting unit and emitted from the display surfaces of the two display units to the outside. Since the display is performed simultaneously on the two display portions provided at both ends of the swing of the operation handle, even when a switching contact device is used, the display position of the operation handle matches the operation direction. Improves.

  According to a second aspect of the present invention, in order to achieve the above-mentioned object, a switch-type contact device having a switch body housed in a container body and a light-emitting source that emits light at a voltage provided between the switch contacts of the contact device provided in the switch body. And an operation handle having at least a dimension in the short width direction that is substantially the same as or larger than the front surface of the switch body and is pivotably disposed on the front surface side of the switch body with a substantially center as a fulcrum. A first display unit provided at one end for emitting light of the light emitting source to the outside through the display surface and between the switch body and the operation handle guides the light of the light source to the display surface of the first display unit. A first prism having a first light-collecting portion that emits light, a second display portion that is provided at the other end of the operating handle that swings and emits light from a light-emitting source to the outside through the display surface, and a switch body Between the control handle Characterized by comprising a second prism having a second focusing part for guiding light from the light emitting source to the display surface of the second display unit.

  According to the present invention, the light source emits light when the power supply from the power source to the load is stopped, and the light is guided to the first and second light condensing units to be the first and second display units. Since the light is emitted from the respective display surfaces to the outside, the display is performed simultaneously on the first and second display portions provided at both ends of the swing of the operation handle. In addition, the operability is improved by matching the display position of the operation handle with the operation direction.

  According to a third aspect of the present invention, in the first or second aspect of the invention, a reversing handle that is pivotally supported by the body and that switches the contact device in conjunction with the operation of the operating handle, and a collection of the light emitting source and the prism. Provided on the optical path between the first light condensing part of the optical part or the first prism and the second light condensing part of the second prism at positions facing each other across the swing fulcrum of the operation handle. The two light-shielding parts and the reversing handle are integrally pivoted so as to be opposed to the two light-shielding parts in the front-rear direction of the switch body, and alternatively with one of the light-shielding parts depending on the operation position of the operation handle. A light-shielding body that shields an optical path between the light-emitting source and the condensing part of the prism or the first condensing part of the first prism and the second condensing part of the second prism by contacting or overlapping It is characterized by comprising.

  According to this invention, both ends of the operation handle are moved from the front to the back or from the back to the front in accordance with the operation, and at the end moved to the rear, the end side of the operation handle with respect to the swing fulcrum of the operation handle A light shielding body abuts or overlaps with one light shielding portion provided in the light shielding portion to shield the light path between the light source and the light collecting portion of the prism (or one of the first and second light collecting portions). At the end moved forward, the light shielding body does not contact or overlap the other light shielding part provided on the end side with respect to the swing fulcrum of the operation handle, and the light source and the prism are collected. Since the optical path between the light part (or the other of the first and second light condensing parts) is not shielded, the end part moved forward among the two display parts, that is, the end to be operated next The light from the light source is emitted only from the display surface of the display unit It and will be, operability perfectly match the display position of the operating handle and operating direction is further improved.

  According to a fourth aspect of the invention, in the third aspect of the invention, the prism or the first and second prisms are provided with a mounting portion for attaching the operation handle on the front side and a coupling portion for coupling with the reverse handle on the rear side. It is characterized by being able to.

  According to the present invention, since the operation handle is attached to the prism or the first and second prisms, the prism or the first and second prisms can be coupled to the reversing handle, so that the assembling work is facilitated.

  The invention of claim 5 is characterized in that, in the invention of claim 3, the light emitting source is exposed on the front side of the reversing handle, and the light shielding body is formed in an umbrella shape covering the light emitting source from the front.

  According to the present invention, the light source is arranged in the vicinity of the prism or the first and second prisms so that the light from the light source can be efficiently collected on the light collecting unit, and the display unit or the first and second units can be gathered. The brightness of the display is improved.

  According to a sixth aspect of the invention, in the fifth aspect of the invention, the light shielding body is provided so as to be rotatable along the swinging direction of the reversing handle.

  According to the present invention, since the gap (optical path) between the light shielding body and the light shielding portion does not overlap as compared with the case where the light shielding body does not rotate with respect to the reversing handle, the brightness of the display unit is increased. In addition, since the amount of overlap between the light shielding body and the light shielding portion increases, light leakage to the display portion can be suppressed.

  The invention of claim 7 is the state of the invention of claim 3 or 4, wherein the switch body has attachment means for detachably attaching to the plate frame fixed to the surface side of the construction surface and is attached to the plate frame The embedded handle is embedded in a manner to embed the rear end in an embedded hole provided in the construction surface, and is formed in a size that can be attached to a plate frame in a row in a short width direction. In the arrangement direction of the switch main body with respect to the plate frame, the switch main body is formed to have a dimension larger than the width dimension in the short width direction of the switch main body.

  According to the present invention, the operability of the operation handle is improved.

  According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the display unit or the first and second display units are formed to have substantially the same dimensions as the end of the operation handle. .

  According to this invention, it becomes easy to visually recognize a display part.

  According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the display unit or the first and second display units diffuse light.

  According to the present invention, the light emission range is expanded and the display unit is easily visible.

  According to a tenth aspect of the present invention, there is provided the lamp cover according to any one of the first to ninth aspects, wherein the lamp cover is made of a glossy metal and has a light shielding body and a protective portion that surrounds the light emitting source and protects the light emitting source. It is characterized by having.

  According to the present invention, since the lamp cover is made of a glossy metal, the light of the light source can be reflected by the inner surface of the light shielding body or the protection part and efficiently collected on the light collecting part, and the brightness of the display part can be obtained. Will improve.

  The invention according to claim 11 is the lamp cover according to any one of claims 1 to 9, which is made of a synthetic resin molded product having insulating properties and includes a light shielding body and a protective portion that surrounds the periphery of the light source and protects the light source. And a light-shielding body facing the light-emitting source and a reflection sheet that is attached to the inner surface of the protective part and reflects the light from the light-emitting source.

  According to the present invention, the light of the light source can be reflected by the reflection sheet and efficiently collected in the light collecting portion, and the brightness of the display portion is improved. In addition, when the lamp cover is made of metal, it is necessary to insulate it from the light emitting source, but such insulation is unnecessary.

  A twelfth aspect of the invention is the lamp cover according to any one of the first to ninth aspects, wherein the lamp cover is made of a synthetic resin molded product having insulating properties and includes a light shielding body and a protective portion that surrounds the periphery of the light emission source and protects the light emission source. And a reflective layer formed by coating a light shielding body facing the light emitting source and a coating material having a high reflectance on the inner surface of the protective portion.

  According to the present invention, the light from the light source can be reflected by the reflective layer and can be efficiently collected in the light collecting portion, and the brightness of the display portion is improved. In addition, when the lamp cover is made of metal, it is necessary to insulate it from the light emitting source, but such insulation is unnecessary.

  The invention of claim 13 has a switch with a display according to claim 3 or 4 and a mounting means for detachably attaching the switch body, in which the rear end of the switch body is embedded in an embedding hole provided in the construction surface. In a switch device comprising a plate frame fixed to the surface side of the construction surface and a decorative plate that covers the front surface of the plate frame with the operation handle exposed, the switch body is maximum in the short width direction with respect to the plate frame. The operation handle is formed to have a size that can be mounted side by side, and the operation handle is formed to have a size that is larger than the width of the switch body in the short width direction in the alignment direction of the switch body with respect to the plate frame. In this prism, three coupling portions that are alternatively coupled to the reversing handle are arranged along the short width direction of the switch body, and the three coupling portions are arranged. Wherein the Chide release section releasing the coupling portion to the site of the reversing coupling portion which is not coupled to the handle and opposed to the plate frame surface is provided.

  According to this invention, regardless of the mounting position of the switch body with respect to the plate frame, a common operation handle can be used, and workability is improved.

  According to a fourteenth aspect of the present invention, in the thirteenth aspect of the present invention, there is provided a pinch fitting for sandwiching the construction material with the plate frame, and a hole provided in the plate frame for attaching the pinch fitting is used as the escape means. It is characterized by that.

  According to the present invention, an increase in the manufacturing cost of the plate frame can be suppressed by using the pin for the metal fitting also as the escape means.

  According to the present invention, when the power supply from the power source to the load is stopped, the light source emits light, and the light is guided to the condensing unit, and the two display units (or the first and second display units). ) From the display surface to the outside, the display is performed simultaneously on the two display portions (or the first and second display portions) provided at the both ends of the swing of the operation handle. Even when the contact device is used, the operability is improved by matching the display position of the operation handle with the operation direction.

  Hereinafter, an embodiment in which the technical idea of the present invention is applied to a three-way switch (tumbler switch) which is a wide handle type switch and the contact device has a single pole switching type contact configuration will be described.

(Embodiment 1)
The first embodiment of the present invention will be described in detail with reference to FIGS.

  The switch with a display of this embodiment is composed of a switch body 1 and a handle block 2, and is embedded by a plate 100 in such a manner that a rear end portion of the switch body 1 is embedded in an embedding hole (not shown) provided in a construction surface. Arranged. The switch with display and the plate 100 constitute the switch device of this embodiment.

  The plate 100 includes a plate frame 101 that holds the switch body 1 and is attached to an embedding box (not shown) disposed inside the embedding hole, and a decorative plate 110 that covers the plate frame 101 from the front. Is done. The plate frame 101 is formed in a rectangular frame shape from a synthetic resin material, and holds the switch body 1 in such a manner that a front end portion is inserted into a mounting window 103 opening in the center. The decorative plate 110 is formed of a synthetic resin material in a rectangular frame shape, and the front surface of the switch body 1 is exposed through a window hole 111 opened in the center (see FIG. 2). On the back surface of the decorative plate 110, four locking pieces (not shown) protrude rearward, and these four locking pieces are locked in locking holes 104 provided at the four corners of the plate frame 101. Thus, the decorative plate 110 is detachably attached to the front surface of the plate frame 101. In addition, screw insertion holes 105 through which box screws for attaching to the embedding box are inserted in the front-rear direction at the center portions of both ends in the longitudinal direction facing each other across the attachment window 103 of the plate frame 101. Further, a pair of holes 106 to which a clamp (not shown) is detachably attached are provided in both front and rear directions on both sides of the screw insertion hole 105. The pinch metal fittings are well known in the art, and a screw inserted into the screw insertion hole 105 is screwed in a state where a part of the metal fitting is hooked in the hole 106, and the construction material is narrowed between the plate frame 101 by tightening this screw. By holding, the plate frame 101 is fixed to the construction material.

  The switch body 1 includes a rectangular parallelepiped synthetic resin molded body 10 whose front surface (upper surface in FIG. 1) is open, and a synthetic resin molded product cover 20 formed in a rectangular frame shape and coupled to the front side of the body 10. The container comprised by these is provided. A pair of assembly protrusions 11 project from the outer side surfaces of the body 10 along the longitudinal direction of the body 10 so as to be spaced apart from each other in the longitudinal direction of the body 10. The body 10 and the cover 20 are coupled by the assembly protrusion 11 engaging with the assembly hole 21 a provided in the assembly tongue piece 21.

  The body 10 has three terminal devices 30A, 30B, 30C for connecting electric wires (not shown) inserted into the body through electric wire insertion holes 12 provided in the rear wall of the body 10, and the terminal device 30A and terminals. The contact device 40 that opens and closes the electric path between the devices 30B and 30C is housed (see FIG. 3). On the other hand, a reversing handle 50 of a synthetic resin molded product is mounted on the opening window 22 in the center of the cover 20 so as to be swingable with respect to the cover 20. As the reversing handle 50 swings, the reversing handle 50 swings. The contact device 40 is opened and closed. A synthetic resin molded operation handle 60 (handle block 2) overlapping the front surface of the cover 20 is detachably coupled to the front surface side of the reversing handle 50, and the reversing handle is swung as an operating portion. The contact device 40 is opened and closed by swinging 50.

  A plurality of holding ribs 13 and holding grooves 14 for positioning the terminal devices 30 </ b> A, 30 </ b> B, 30 </ b> C and the contact device 40 are formed on the inner surface of the body 10. The terminal device 30A is disposed in one end portion in the longitudinal direction of the body 10, the terminal devices 30B and 30C are disposed in the other end portion in the longitudinal direction of the body 10, and the contact device 40 is disposed in the central portion in the longitudinal direction of the body 10. The

  The terminal device 30 </ b> A includes a terminal plate 32 formed of a conductive metal plate, two lock springs 33, and a release button 34 of a synthetic resin molded product that comes into contact with the two lock springs 33. The terminal plate 32 is formed in a substantially U shape by continuously connecting the main piece 32a and the front end edge of the abutting piece 32b facing the main piece 32a with a connecting piece 32c. It is stored in the body 10 along the opening surface. The lock spring 33 is housed between the main piece 32a and the contact piece 32b. A support piece 32d extends from the rear end edge of the contact piece 32b toward the longitudinal center of the body 10 along the inner bottom surface of the body 10 on the terminal plate 32, and at the tip of the support piece 32d. A fulcrum protrusion 32e is formed that is bent in a hem shape and protrudes forward (see FIG. 3).

  The terminal devices 30B and 30C are provided with terminal plates 45 and 46, respectively. Main pieces 45a and 46a with which the electric wires introduced into the container body come into contact with the terminal plates 45 and 46 through the electric wire insertion holes 12 provided in the container body, respectively. The contact pieces 45b and 46b that contact the holding ribs 13 provided on the body 10, the connection pieces 45c and 46c that connect the main pieces 45a and 46a and the contact pieces 45b and 46b, and the connection pieces 45c, Contact holding pieces 45d and 46d are provided which extend continuously and integrally from 46c and are provided with fixed contacts 41a and 41b at the tip portions, respectively. The distal end portions of the contact holding pieces 45d and 46d of both terminal devices 30B and 30C are arranged so as to face each other at the central portion of the device body, and the fixed contacts 41a and 41b face each other at the central portion of the device body.

  The terminal devices 30B and 30C are arranged on the same side in the longitudinal direction of the body 10 (left side in FIG. 3), and between the main pieces 45a and 46a of the terminal plates 45 and 46 and the contact pieces 45b and 46b. Each one lock spring 33 is housed, and one release button 34 is disposed between the lock springs 33 of both terminal plates 45 and 46.

  The locking spring 33 is formed by bending one end of a belt-shaped leaf spring into an S shape to form a contact piece 33a, and bending the other end into a J shape to form a locking piece 33b. It is formed in a shape in which the piece 33a and the locking piece 33b are continuously and integrally connected by a connecting piece 33c. Further, the contact piece 33a and the locking piece 33b protrude on the same side in the thickness direction with respect to the connection piece 33c. When the locking spring 33 is mounted between the main pieces 32a, 45a, 46a of the terminal plates 32, 45, 46 and the contact pieces 32b, 45b, 46b, the connection piece 33c is attached to the contact pieces 32b, 45b, 46b. The contact piece 33a and the locking piece 33b are opposed to the main pieces 32a, 45a, 46a. Here, the distal end portions of the contact piece 33a and the locking piece 33b are inclined so as to be farther from the connection piece 33c toward the distal end side, and are extended so as to be substantially parallel to each other. Further, the distal end portions of the contact piece 33a and the locking piece 33b are arranged so that the distance from the connecting pieces 32c, 45c, 46c decreases toward the distal end side.

  The electric wire insertion hole 12 described above is formed at a portion corresponding to the main piece 32a, 45a, 46a of the terminal plate 32, 45, 46 and the contact piece 33a and the locking piece 33b. 1 is inserted between the main pieces 32a, 45a, 46a and the contact pieces 33a and the locking pieces 33b, the electric wires come into contact with the main pieces 32a, 45a, 46a. The terminal devices 30A, 30B, and 30C are electrically connected to the electric wire and mechanically held so that the leading edge of the locking piece 33b bites into the electric wire so that the electric wire does not come out of the container. An operation hole 15 is provided in the rear wall of the body 10 at a portion corresponding to the release button 34. The operation hole 15 is connected to the terminal devices 30A, 30B, and 30C as described above. When the release button 34 is pressed by inserting a tool, a push piece (not shown) provided on the release button 34 presses the locking piece 33b and bends away from the electric wire, thereby mechanically holding the electric wire. Is released and the electric wire can be pulled out from the container.

  The contact device 40 includes an opening / closing element 43 that is formed in a U-shape that is open forward and is disposed so that a rear end thereof is in contact with a front end of a fulcrum protrusion 32e. The opening / closing element 43 is provided with movable contacts 42a and 42b in the vicinity of the tips of both leg pieces, and rotates around the tip of the fulcrum projection 32e as a fulcrum, thereby moving the movable contacts 42a and 42b to the fixed contacts 41a and 41b. Are selectively contacted. That is, the movable contact 42b is separated from the fixed contact 41b while the movable contact 42a is in contact with the fixed contact 41a, and the movable contact 42a is separated from the fixed contact 41a while the movable contact 42b is in contact with the fixed contact 41b. One end of a reversing spring 44 made of a coil spring is inserted between the leg pieces of the opening / closing element 43, and the other end of the reversing spring 44 is inserted into a holding hole 54a of a cylindrical portion 54 provided on the back side of the reversing handle 50. Thus, the reversing spring 44 is held in a compressed state between the opening / closing element 43 and the reversing handle 50.

  The reversing handle 50 is made of a synthetic resin molded product having a rectangular box shape as a whole, and fulcrum projections 51 each having a tapered front end are provided on both side surfaces along the longitudinal direction. On the other hand, a pair of bearing protrusions 23 projecting forward from the peripheral edge of the opening window 22 are provided on both sides of the cover 20 in the longitudinal direction and in the width direction (short direction). A bearing recess 24 into which the fulcrum protrusion 51 of the reversing handle 50 is inserted is formed on the opposite surface of the head 23. The bearing recess 24 pivotally supports the fulcrum projection 51 at least at the front end portion so as to be swingable. A storage recess 52 for storing a circuit board 70 on which a position indicator lamp 71 (described later) is mounted is provided on the front surface of the reversing handle 50, and the handle block 2 is coupled to both longitudinal end surfaces of the reversing handle 50. A coupling claw 53 for projecting is provided.

  A pair of attachment claws 26 project from both side surfaces of the cover 20 facing in the longitudinal direction. The attachment claw 26 has a function of holding the switch body 1 on the plate frame 101 by engaging with an attachment hole 102 provided in the plate frame 101. However, on one side surface of the cover 20, a portion where the mounting claw 26 protrudes by the pair of grooves 20 a can be elastically bent, and by bending this portion, the mounting claw 26 and the mounting hole 102 can be bent. The switch body 1 can be detached from the plate frame 101 by releasing the engagement.

  The circuit board 70 housed in the housing recess 52 on the front surface of the reversing handle 50 has a rectangular flat plate shape with a circular press-fit hole 70a passing through the center, and current-limiting resistance elements 72 are mounted on both ends in the longitudinal direction. Then, a position indicator lamp 71 made of a neon lamp is mounted so as to face the press-fitting hole 70a from the front. A conductive pattern is printed on the circuit board 70, and a position indicator lamp 71 and a resistance element 72 connected in series via the conductive pattern are connected to the terminal devices 30B and 30C by a pair of contacts 47 made of a conductive metal plate. Connected between the terminal boards 45 and 46. The contact 47 is formed in a narrow strip shape, soldered to the conductive pattern of the circuit board 70 at one end, and press-fitted and fixed in a fixing groove 70 b provided in the circuit board 70. A cylindrical portion 54 projects forward from the center of the bottom of the storage recess 52, and the circuit board 70 is fixed in the storage recess 52 by press-fitting the cylindrical portion 54 into the press-fitting hole 70a. is there. Here, a support recess 54b that supports a cylindrical position indicator lamp 71 is formed at the tip of the cylindrical portion 54, and the position indicator lamp 71 is positioned with respect to the reversing handle 50 by being supported by the support recess 54a. . Further, an insertion hole 55 through which the contact 47 having one end fixed to the circuit board 70 is inserted is provided on the bottom surface of the storage recess 52, and the tip of the contact 47 inserted into the insertion hole 55 is a terminal plate. The connecting pieces 45c and 46c of 45 and 46 are elastically contacted from the front (see FIG. 5B). This type of three-way switch is often used in applications where the lighting load is turned on / off from two locations. A three-way switch is arranged at each location to turn on / off the lighting load at any location. It can be operable. Therefore, if a series circuit of the position indicator lamp 71 and the resistance element 72 is inserted between the fixed contacts 41a and 41b, the position indicator lamp 71 can be turned on only when the illumination load is turned off. Since the connection relationship of this type of circuit is well known, description thereof is omitted.

  Incidentally, the storage recess 52 of the reversing handle 50 is closed from the front by a lamp cover 80 made of a synthetic resin molded product. As shown in FIG. 6, the lamp cover 80 includes a rectangular box-shaped main portion 81 whose back surface is opened, and a pair of protrusions 82 that protrude forward from both ends of the main portion 81 and that house the resistance element 72 therein. A protective portion 83 that is a rectangular tube and protrudes forward from the central portion of the main portion 81 and accommodates the position indicator lamp 71 therein; and a cross-sectional shape that is a curved surface along the tube wall of the position indicator lamp 71 83, a light blocking body 84 provided at the front end of 83, and locking claws 85 protruding from both side surfaces in the longitudinal direction of the main portion 81 are locked to locking portions 56 provided on both side surfaces of the reversing handle 50. To fix the reversing handle 50 (see FIG. 5B). In addition, rectangular light transmission windows 86 are opened on the side surfaces of the protection portion 83 facing both the protrusions 82, and light emitted from the position indicator lamp 71 housed in the protection portion 83 passes through the light transmission window 86. It comes to be irradiated outside. Note that a flange 87 protruding outward from the front edge of the light transmitting window 86 (the edge of the light shield 84) is provided.

  On the other hand, on the pair of bearing protrusions 23 provided on the cover 20, a pair of strip-shaped light shielding portions 27 are installed so as to face the light transmitting windows 86 opened on both side surfaces of the protection portion 83 of the lamp cover 80. Has been. The reversing handle 50 is swingably attached to the cover 20 with the front end portion including the light shielding body 84 of the protection portion 83 inserted between the pair of light shielding portions 27.

  The handle block 2 includes an operation handle 60 formed in a rectangular shape larger than the front surface of the switch body 1 and a prism 90 coupled to the back side of the operation handle 60. The operation handle 60 includes a main part 61 formed in a gently curved shape with a front surface convex forward, a pair of side walls 62 suspended rearward from both side edges along the longitudinal direction of the main part 61, and a main part. And four coupling legs 63 projecting rearward from the four corners of 61. A cylindrical projection 61 a representing the operation position of the operation handle 60 is provided at the center of both end portions along the longitudinal direction of the front surface of the main portion 61.

  The prism 90 is a molded product made of a transparent synthetic resin, and is arranged so as to block both side surfaces opposed to the longitudinal direction of the operation handle 60 and emits light of the position indicator lamp 71 to the outside through the display surface. And two condensing units 92 that are connected to the display unit 91 on one end side and have an incident surface 92a on which the light of the position indicator lamp 71 is incident on the other end side, and incident surfaces 92a of the two condensing units 92 A total of six engaging protrusions are provided at the tip of the arcuate connecting part 93 to be connected and the engaging claw 94a that engages with the connecting claw 53 provided on the reversing handle 50 and protrudes rearward from each light collecting part 92. A piece 94 and a locking piece 95 provided at both ends in the longitudinal direction on the inner side surface of the display unit 91 and locked by a claw 63a protruding from the tip of the coupling leg 63 of the operation handle 60 are provided. And the operation handle 60 is arrange | positioned between the two display parts 91 so that the condensing part 92 and the connection part 93 may be covered from the front, and the nail | claw 63a protrudingly provided at the front-end | tip of the four coupling legs 63 of the operation handle 60 is provided. The prism 90 is coupled to the back side of the operation handle 60 by being engaged with the engagement pieces 95 at both ends of each display portion 91, whereby the handle block 2 is configured.

  The handle block 2 configured as described above has an engagement claw provided at the tip of any one of the three engagement protrusions 94 protruding rearward from the two light collecting portions 92 of the prism 90. By engaging 94 a with the coupling claw 53 of the reversing handle 50, it is coupled to the front side of the reversing handle 50. That is, the plate frame 101 is provided with three sets of mounting holes 102, and a maximum of three switch bodies 1 can be mounted side by side in the short width direction (see FIG. 2). For the switch main body 1 to be attached, the engaging claw 94a of the central engaging protrusion 94 is used, and for the switch main body 1 to be attached to the attachment holes 102 at both ends, the engaging protrusion 94 at either end. By using the engaging claw 94a, the mounting position of the handle block 2 is shifted in the short width direction of the switch body 1 (see FIG. 1). With such a configuration, there is no need to prepare three types of handle blocks 2 according to the mounting position of the switch body 1 with respect to the plate frame 101, and a common handle block 2 is used regardless of the mounting position of the switch body 1. There is an advantage that the workability can be improved. Here, in the handle block 2 attached to the switch body 1 located at both ends of the plate frame 101, only the engaging claw 94a (engaging protrusion 94) on one end side is used for coupling with the reversing handle 50, Since the engagement claw 94a (engagement projection piece 94) on the other end side protrudes outside the mounting window 103 of the plate frame 101, the relief for releasing the protruding engagement claw 94a (engagement projection piece 94). Means must be provided on the plate frame 101. For this purpose, in this embodiment, a pair of holes 106 provided in the plate frame 101 for attaching the clamp metal are also used as escape means, and the engaging claws 94a (engaging protrusions) protruding from the attachment window 103 of the plate frame 101 are used. 94) can be inserted into the holes 106 and escaped, and an increase in the manufacturing cost of the plate frame 101 can be suppressed as compared with the case where the escape means is separately provided.

  Thus, the operation of the present embodiment configured as described above will be briefly described. As shown in FIG. 3, the right end portion of the operation handle 60 (handle block 2) is behind the left end portion (downward in the drawing). When the movable contact 42b is in contact with the fixed contact 41b, the reversing spring 44 is bent to the left with respect to both ends in this state, and the reversing spring 44 moves the movable contact 42b to the fixed contact 41b. The contact pressure is applied by being pressed. On the other hand, when the left end portion of the operation handle 60 is pushed backward from this state, the reversing handle 50 swings counterclockwise in the figure, so that the reversing spring 44 shifts to a state where the intermediate portion is bent to the right with respect to both end portions. At this time, the opening / closing element 43 is rotated clockwise in the drawing to separate the movable contact 42b from the fixed contact 41b and to bring the movable contact 42a into contact with the fixed contact 41a. When the movable contact 42a is in contact with the fixed contact 41a, the left end portion of the operation handle 60 is located behind the right end portion. That is, the contact device 40 contacts and separates the fixed contact 41a and the movable contact 42a as well as the fixed contact 41b and the movable contact 42b each time the front end of the operation handle 60 is pushed backward. Will be switched alternatively.

  By the way, in a state where the switch body 1 and the handle block 2 are coupled, the switch body 1 and the handle block 2 are installed between the bearing protrusions 23 of the cover 20 on the optical path between the position indicator lamp 71 and the light condensing part 92 of the prism 90. The pair of light shielding portions 27 are disposed at positions facing each other across the swing fulcrum of the operation handle 60 (handle block 2), and a light shielding body 84 provided on the lamp cover 80 is connected to the pair of light shielding portions 27. The switch body 1 is disposed at a position facing the switch body 1 in the front-rear direction (vertical direction in FIG. 3). Therefore, both end portions of the operation handle 60 are moved from the front to the rear or from the rear to the front in accordance with the pushing operation, and at the end moved to the rear, the swing fulcrum of the operation handle 60 (the fulcrum protrusion 51 of the reversing handle 50). ) With respect to one of the light-shielding portions 27 provided on the end portion side, the end portion of the light-shielding body 84 (the flange 87) overlaps (or abuts, the same applies hereinafter), and the position indicator lamp 71 and the prism 90 The light path between the light condensing unit 92 and the light condensing unit 92 is shielded, and at the end portion moved forward, the other light shielding unit 27 provided on the end side with respect to the swing fulcrum of the operation handle 60 is shielded from light. 84 does not overlap, and does not block the optical path between the position indicator lamp 71 and the condensing part 92 of the prism 90. For example, as shown in FIG. 3, in the state where the left end of the operation handle 60 is in front and the right end is in the rear, the right end of the light shield 84 (the flange 87) Are overlapped so that the light transmitting window 86 is almost blocked, so that the light path between the right light collecting portion 92 and the position indicator lamp 71 is shielded by the light shielding portion 27 and the light shielding body 84 and the right display portion 91 Although the light from the position indicator lamp 71 is not emitted to the outside from the display surface, the left light shielding portion 27 does not overlap the left end portion of the light shielding body 84 and the translucent window 86 is blocked. Therefore, the light path between the left condensing part 92 and the position indicator lamp 71 is not shielded by the light shielding part 27 and the light shielding body 84, and the light of the position indicator lamp 71 is externally transmitted from the display surface of the left display part 91. Is emitted. Although not described in detail, contrary to FIG. 3, even when the right end of the operation handle 60 is in front and the left end is in the rear, the position is displayed only from the right display 91 in the front. Obviously, the light of the lamp 71 is emitted, and the light of the position indicator lamp 71 is not emitted from the left display unit 91 behind.

  As described above, in the present embodiment, the light of the position indicator lamp 71 is emitted only from the display surface of the display unit 91 provided at the end of the operation handle 60 on the side to be operated next. The display position of 60 and the operation direction can be completely matched, and the operability can be improved as compared with the conventional example. In addition, even when it is set as the structure which does not construct the light-shielding part 27 between the bearing protrusions 23 of the cover 20 as shown in FIG. 9, the light of the position indicator lamp 71 is radiate | emitted from the display surface of the two display parts 91 outside, Display is performed simultaneously on the two display portions 91 provided at both ends of the operation handle 60, and the operability can be improved by matching the display position of the operation handle 60 and the operation direction as compared with the conventional example. .

  In the present embodiment, a mounting portion (locking piece 95) for attaching the operation handle 60 is provided on the front side, and a coupling portion (engaging claw 94a) that is coupled to the reversing handle 50 is provided on the back side. Since the prism 90 can be coupled to the reversing handle 50 after the operation handle 60 is attached to 90, there is an advantage that the assembling work is facilitated. Further, since the position indicator lamp 71 is exposed on the front side of the reversing handle 50 and the light shield 84 of the lamp cover 80 is formed in an umbrella shape that covers the position indicator lamp 71 from the front, the position indicator lamp 71 is replaced by the prism 90. , The light of the position indicator lamp 71 can be efficiently collected on the condensing part 92 and the brightness of the display part 91 is improved. Here, in this embodiment, since the two display parts 91 are formed in the substantially same dimension as the edge part of the operation handle 60, the display part 91 is easy to visually recognize. Note that if the diffusing material is mixed into the transparent synthetic resin material so that the display unit 91 or the entire prism 90 including the display unit 91 has diffusibility, the light emission range is expanded and the display unit 91 is easily visible.

  In this embodiment, the lamp cover 80 is a synthetic resin molded product. However, if the entire lamp cover 80 or the protection portion 83 and the light shield 84 are formed of a glossy metal material, the light of the position indicator lamp 71 is shielded. The light can be reflected on the inner surface of the body 84 and the protection unit 83 and efficiently collected in the light collecting unit 92, and the brightness of the display unit 91 can be improved. However, when the whole or a part of the lamp cover 80 is made of metal, it is necessary to insulate the position indicator lamp 71, the resistance element 72, and the like. Therefore, the lamp cover 80 made of a synthetic resin molded product having insulation properties. A reflection sheet formed by sticking a sheet material that reflects the light of the position indicator lamp 71 is provided on the inner surface of the light shielding body 84 or the protection portion 83, or a coating material having a high reflectance (light-colored glossy dye, If a reflective layer formed by coating a metallic material) is provided, the brightness of the display unit 91 can be improved without insulation from the position indicator lamp 71 and the like.

  Further, in the present embodiment, the case where three switch bodies 1 are attached to the plate frame 101 has been illustrated, but when two switch bodies 1 are attached to both ends of the plate frame 101 as shown in FIG. As shown, when one switch body 1 is attached to the center of the plate frame 101, the operation handle 60 and the prism in which the width dimension along the short width direction of the switch body 1 is enlarged 1.5 times and 3 times, respectively. What is necessary is just to combine with the handle block 2 which consists of 90.

(Embodiment 2)
As shown in FIG. 12, the basic configuration of the present embodiment is the same as that of the first embodiment, and the same reference numerals are given to common components, and illustration and description thereof are omitted as appropriate. In addition, even if the shapes are slightly different, the same reference numerals are given if the functions are the same.

  In the first embodiment, the lamp cover 80 and the light shielding body 84 are integrally formed. However, in this embodiment, the lamp cover 80 and the light shielding body 84 are formed separately, and the light shielding body 84 is in the swinging direction of the cover 20. It is provided so that it can rotate along.

  As shown in FIG. 13, the lamp cover 80 has a rectangular box shape with an open back surface, and a main portion 81 having an insertion hole 81 a through which the tube portion 54 is inserted at the center, and both ends of the main portion 81 forward. And a pair of protrusions 82 in which the resistance elements 72 are accommodated in the protrusions, and locking claws that protrude from both side surfaces in the longitudinal direction of the main portion 81 in a state where the cylindrical portion 54 is inserted into the insertion holes 81a of the main portion 81. 85 is locked to the reversing handle 50 by being locked to locking portions 56 provided on both sides of the reversing handle 50 (see FIG. 12).

  As shown in FIGS. 14 and 15, the light shielding body 84 includes a semi-cylindrical light shielding portion 84 a whose cross-sectional shape is a curved surface along the tube wall of the position indicator lamp 71, and axial directions from both axial ends of the light shielding portion 84 a. And a triangular support part 84b projecting outward along the line is integrally formed as a synthetic resin molded product. A rectangular recess 84c and a flange 84d projecting outward from the periphery of the recess 84c are provided at both end edges along the axial direction of the light shielding portion 84a. The support portion 84b has a cylindrical shape whose central axis coincides with the axial direction of the light-shielding portion 84a, and a part of the bearing hole 84e that is open along the axial direction. And a connecting hole 84f penetrating in the vertical direction in FIG.

  On the other hand, as shown in FIG. 16, a pair of bearing protrusions 23 of the cover 20 are provided with cylindrical shaft protrusions 23 a that protrude from the bearing recesses 24 on the opposite surfaces of the pair of bearing protrusions 23. Accordingly, by fitting the two shaft protrusions 23a of the bearing protrusion 23 into the bearing holes 84e, the light shield 84 rotates in the same direction as the swinging direction of the reversing handle 50 with respect to the cover 20 with the shaft protrusion 23a as a fulcrum. Be free. Further, as shown in FIG. 17, the reversing handle 50 is provided with a fixing rib 57 protruding forward (upward in FIG. 17) from the front end edge in the vicinity of the pair of fulcrum protrusions 51. That is, the light shield 84 is connected to the reversing handle 50 by inserting the tip of the fixing rib 57 into the connection hole 84 f provided in the support portion 84 b of the light shield 84.

  Thus, the operation of the present embodiment configured as described above will be briefly described. For example, as shown in FIG. 12, when the left end portion of the operation handle 60 is in front (upward in FIG. 12) and the right end portion is in the rear (downward in FIG. 12), the right light shielding portion 27 is shielded. Since the right end portion (strip 87) of the body 84 overlaps, the light path between the right light collecting portion 92 and the position indicator lamp 71 is shielded by the light shielding portion 27 and the light shielding body 84 and the right display portion. Although the light from the position indicator lamp 71 is not emitted from the display surface 91 to the outside, since the left end portion of the light shield 84 does not overlap the left light shield portion 27, The light path between the position indicator lamp 71 and the position indicator lamp 71 is not shielded by the shield part 27 and the shield member 84, and the light of the position indicator lamp 71 is emitted from the display surface of the left display part 91 to the outside. Similarly, in contrast to FIG. 12, even when the right end of the operation handle 60 is in front and the left end is in the rear, the light of the position indicator lamp 71 is emitted from only the right display 91 in the front. Then, the light of the position indicator lamp 71 is not emitted from the left display portion 91 on the rear side.

  Here, in the first embodiment, since the light shielding body 84 is formed integrally with the lamp cover 80, the rotation fulcrum of the light shielding body 84 coincides with the swing fulcrum of the operation handle 60 (the fulcrum protrusion 51 of the reversing handle 50). However, in this embodiment, the rotation fulcrum of the light shield 84 is the shaft protrusion 23a provided on the bearing protrusion 23 of the cover 20, and the fixing rib 57 of the reversing handle 50 is slightly larger than the inner diameter of the connecting hole 84f. Since it is formed thin, the rotation angle of the light shield 84 is larger than the swing angle of the reversing handle 50. As a result, compared to the case where the light shield 84 does not rotate with respect to the reversing handle 50 as in the first embodiment, the gap (optical path) between the light shield 84 and the light shield 27 is not large. Therefore, the brightness of the display unit 91 can be increased, and the amount of overlap between the light shield 84 and the light shield unit 27 is increased, so that light leakage to the display unit 91 can be suppressed.

(Embodiment 3)
The present embodiment is characterized by the handle block 2, and other configurations are the same as those of the second embodiment as shown in FIGS. Therefore, the same components as those in the second embodiment are denoted by the same reference numerals, and illustration and description thereof are omitted as appropriate. In addition, even if the shapes are slightly different, the same reference numerals are given if the functions are the same.

  The handle block 2 in the present embodiment has two operation handles 60 that are rectangular in a plan view and are formed in a flat box shape opened rearward (downward in FIG. 18), a display unit 91, and a light collecting unit 92. It comprises prisms 90 and 90. The two prisms 90 are the same, and as shown in FIG. 20, a display unit 91 and a light collecting unit 92 are integrally formed of a transparent synthetic resin material. The light collecting portion 92 has a flat rectangular shape, and is fixed to the inner bottom surface of the operation handle 60 by a fixing piece 92a protruding from one end portion. That is, a pair of holes are provided in the fixing piece 92a in the thickness direction, and the fixing pieces 92a are caulked by inserting the protrusions 64 protruding from the inner bottom surface of the operation handle 60 into the holes, respectively, and caulking the tips. Is fixed to the operation handle 60 (see FIG. 21). At this time, the inner end surface (incident surface) of the light condensing unit 92 faces the gap (optical path) between the light shielding member 84 and the light shielding unit 27 (see FIG. 19). In addition, an inclined surface 92b is formed on the back side at the end of the condensing unit 92 on the side where the fixed piece 92a protrudes, and a display unit 91 is provided on the front side facing the inclined surface 92b. The display part 91 consists of an elongated protrusion in plan view, and the cross-sectional shape of the tip part is formed in an arc shape. An oblong oblong hole 67 is provided in both ends of the operation handle 60 in the front-rear direction. When the fixing piece 92a is fixed to the operation handle 60, the display unit 91 is inserted into the oblong hole 67, and the display unit 91 is inserted. The tip portion of the projection slightly protrudes from the front surface of the operation handle 60 (see FIG. 19).

  As shown in FIG. 21, on the inner bottom surface of the operation handle 60, four engagement protrusions 68 provided at the front end with engagement claws 68a that engage with the coupling claws 53 of the reversing handle 50 are projected rearward. The prisms 90 are disposed between two engaging protrusions 68 adjacent in the short width direction.

  Thus, as in the second embodiment, the light from the position indicator lamp 71 that has exited from the gap between the light shielding body 84 and the light shielding portion 27 is incident on the light collecting portion 92 of the prism 90 from the incident surface, and is incident on the inclined surface 92b. Since the refracted light is emitted only to the front of the operation handle 60 through the display unit 91, the display unit 91 viewed from the front as compared with the first and second embodiments that emits not only the front but also the side. There is an advantage that the brightness of is improved. In this embodiment, the engagement protrusion 68 for coupling the handle block 2 to the reversing handle 50 is provided on the operation handle 60. However, as in the first and second embodiments, the engagement protrusions are provided on the prisms 90, 90. If there is provided a space for avoiding the engaging protrusion 68 provided on the operation handle 60, there is an advantage that the degree of freedom of the shape of the prism 90 is improved.

1 is an exploded perspective view of Embodiment 1. FIG. The same as above, (a) is a front view, (b) is a left side view, (c) is a right side view, and (d) is a bottom view. It is sectional drawing same as the above. The switch main body in the same as above is shown, (a) is a front view, (b) is a bottom view, and (c) is a sectional view. (A) (b) is sectional drawing of the switch main body in the same as the above. The lamp cover in the above is shown, (a) is a front view, (b) is a bottom view, (c) is a rear view, (d) is a right sectional view, and (e) is a lower sectional view. The operation handle in the above is shown, (a) is a front view, (b) is a top view, (c) is a left side view, (d) is a bottom sectional view, (e) is a right side view, and (f) is a back view. FIG. The prism in the same as above is shown, (a) is a front view, (b) is a sectional view taken along line XX in (a), (c) is a sectional view taken along line YY in (a), (d). Is a rear view, (e) is a bottom view, and (f) is a sectional view taken along the line ZZ in (a). It is sectional drawing which shows the other structure of the switch with a display in the same as the above. The state which attached two switches with a display to a plate same as the above is shown, (a) is a front view, (b) is a right view. The state which attached the switch with a display same as the above to a plate is shown, (a) is a front view, (b) is a right view. 6 is a cross-sectional view of a second embodiment. FIG. The lamp cover in the above is shown, (a) is a front view, (b) is a bottom view, (c) is a right side view, and (d) is a rear view. It is a perspective view of the light shielding body in the same as the above. The light-shielding body in the same as above is shown, (a) is a front view, (b) is a right side view, and (c) is a bottom view. It is a perspective view of the cover in the same as the above. It is a perspective view of the inversion handle in the same as the above. 6 is an exploded perspective view of Embodiment 3. FIG. It is sectional drawing same as the above. It is a disassembled perspective view of the handle block in the same as the above. It is the perspective view seen from the back of the handle block in the same. It is a front view of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Switch main body 2 Handle block 27 Light-shielding part 30A, 30B, 30C Terminal device 40 Contact device 41a, 41b Fixed contact 42a, 42b Movable contact 43 Opening / closing element 50 Inversion handle 60 Operation handle 70 Circuit board 71 Position display lamp 80 Lamp cover 84 Light-shielding Body 90 Prism 91 Display unit 92 Condensing unit 93 Connection unit

Claims (14)

  A switch body in which a switching-type contact device is housed in a container, a light-emitting source that emits light at a voltage generated between the switching contacts of the contact device provided in the switch body, and at least a dimension in the short width direction is substantially the same as the front surface of the switch body An operating handle that is the same or large and that is swingably disposed on the front side of the switch body with a substantially center as a fulcrum, and is provided at both ends of the swinging position of the operating handle to transmit light from the light source through the display surface. And a prism having a condensing part for guiding light from the light source to the display surfaces of the two display parts between the switch main body and the operation handle. With switch.   A switch body in which a switching-type contact device is housed in a container, a light-emitting source that emits light at a voltage generated between the switching contacts of the contact device provided in the switch body, and at least a dimension in the short width direction is substantially the same as the front surface of the switch body An operating handle that is the same or large and is pivotably disposed on the front side of the switch body with a substantially center as a fulcrum, and is provided at one end of the operating handle that swings to display the light from the light source. A first prism that has a first light-collecting unit that guides light from a light-emitting source to the display surface of the first display unit between the switch main body and the operation handle. A second display unit that is provided at the other end of the operating handle that swings and emits light from the light emitting source to the outside through the display surface; Guide light to the display surface of the display unit Display with switches, characterized in that a second prism having a second condensing unit.   A reversing handle that is pivotally supported by the body and switches the contact device in conjunction with the operation of the operating handle, and a light-emitting source and a condensing part of the prism, or a first condensing part and a first condensing part of the first prism. Two light-shielding portions respectively provided at positions opposed to each other across the rocking fulcrum of the operation handle on the optical path between the second condensing portion of the two prisms, The light-emitting source and the condensing part of the prism are arranged opposite to the light-shielding part in the front-rear direction of the switch body and selectively abut or overlap with one of the light-shielding parts according to the operation position of the operation handle. Or a light-shielding body that shields an optical path between the first condensing unit of the first prism and the second condensing unit of the second prism. Switch with display.   4. The switch with a display according to claim 3, wherein the prism or the first and second prisms are provided with a mounting portion for attaching the operation handle on the front side and a coupling portion for coupling with the reverse handle on the back side. .   4. The switch with a display according to claim 3, wherein a light emitting source is exposed on the front side of the reversing handle, and the light blocking body is formed in an umbrella shape covering the light emitting source from the front.   6. The switch with a display according to claim 5, wherein the light shielding body is provided so as to be rotatable along the swinging direction of the reversing handle.   The switch body has attachment means for detachably attaching to the plate frame fixed to the surface side of the construction surface, and the rear end portion is embedded in the embedding hole provided in the construction surface in a state of being attached to the plate frame. The operation handle is formed in such a manner that it can be embedded in a shape and attached to the plate frame in the short width direction, and the operation handle is arranged in the short width direction of the switch body in the direction in which the switch body is aligned with the plate frame. The switch with a display according to claim 3 or 4, wherein the switch is formed to have a size larger than the width size.   The display-equipped switch according to claim 1, wherein the display unit or the first and second display units are formed to have substantially the same size as the end of the operation handle.   The switch with a display according to claim 1, wherein the display unit or the first and second display units diffuse light.   The display according to any one of claims 1 to 9, further comprising a lamp cover that is made of a glossy metal and includes a light shielding body and a protective portion that surrounds the light source and protects the light source. With switch.   A lamp cover having a protective part that protects the light source by surrounding the periphery of the light shield and the light source, and a light shield that faces the light source and the inner surface of the protective part. The switch with a display according to claim 1, further comprising a reflection sheet that reflects light from the light emitting source.   A lamp cover having a protective part that protects the light source by surrounding the periphery of the light shield and the light source with a synthetic resin molded product having insulating properties, and the inner surface of the light shield and the protective part facing the light source has high reflectance. The switch with a display according to claim 1, further comprising a reflective layer formed by coating a coating material.   5. A switch with a display according to claim 3 and a mounting means for detachably attaching the switch body, and fixing to the surface side of the construction surface by embedding the rear end of the switch body in an embedding hole provided in the construction surface. In a switch device comprising a plate frame and a decorative plate that covers the front surface of the plate frame with the operation handle exposed, the switch body is dimensioned so that a maximum of three switch bodies can be attached to the plate frame in the short width direction. The operation handle is formed in a dimension larger than the width dimension of the switch body in the short width direction in the direction of arrangement of the switch body with respect to the plate frame, and the operation handle or the prism or the first and second prisms are an inversion handle and Three joints that are alternatively joined are arranged along the short width direction of the switch body, and the reversing handle of the three joints is provided. Switching devices combined with unbonded portion facing escape the binding portion to the site of the plate frame surface which relief means is characterized by being provided.   14. The switch device according to claim 13, further comprising a pinch fitting for sandwiching the construction material between the plate frame and a hole provided in the plate frame for attaching the pinch fitting as the escape means.

Images