KR20060108530A - Illuminated switch - Google Patents

Abstract

Even in the case of using a twin-flush contact device, the operability is improved by matching the display position of the operation handle and the operation direction. In the state where the handle block 2 is attached to the switch main body 1, the two position indicators 71a and 71b are connected to the contact devices 30A and 30B and 30A and 30C. It is connected between each. Therefore, when the illumination load is turned off, the display of the display portion 92 provided at the end (the end of the side to be operated next) on the front side of both ends of the operation handle 60 (the handle block 2) is always present. Since the light of the position indicator 71a or 71b is emitted only from the surface, the display position of the operation handle 60 can be completely matched with the operation direction, and the operability can be improved as compared with the conventional example. We can plan.

Description

Switch with Indicator {ILLUMINATED SWITCH}

1 is an exploded perspective view of Example 1. FIG.

2 shows an in-phase, (a) is a front view, (b) is a left side view, (c) is a right side view, and (d) is a bottom view.

3 is a cross-sectional view of the statue.

It is a perspective view seen from the back of the handle block in in-phase.

Fig. 5 shows a state in which two frostbite are attached to the plate, (a) is a front view, and (b) is a right side view.

6 shows a state in which one in-phase is attached to a plate, (a) is a front view, and (b) is a right side view.

7 is a cross-sectional view of Example 2. FIG.

8 is a perspective view of a display block in in-phase.

9 is a partially omitted perspective view of the display block in the in-phase.

10 is a perspective view of the inversion handle in the in-phase.

11 is a sectional view of a third embodiment.

12 is a front view of a conventional example.

Explanation of symbols for the main parts of the drawings

1 switch body

2 handle blocks

30 A, 30 B, 30 C contact device

40 contact device

41a, 41b fixed contacts

42a, 42b movable contact

43 switching elements

50 reverse handle

60 operation handle

70 circuit board

71a, 71b position indicator

90 lamp holder

92 Display

The present invention relates to a switch with a display having a function of displaying the position of an operation portion.

Conventionally, the switch (switch with display) provided with the display part which displays the position of an operation part by lighting with the voltage of an electric circuit is provided. 12 is a front view of the switch 200 with a display disclosed in Japanese Patent Laid-Open No. 2003-151402. The switch 200 with a display includes a base 201 in which a contact device and a light emitting source (for example, a neon lamp) are accommodated, and a reversing handle mounted in a form that is swingably supported by the body 201 to open and close the contact device. A switch for opening and closing the contact device via the inversion handle by operating the operation handle 202 in two opposite directions in a planar view to be coupled to the inversion handle and covering the front surface of the inversion handle; As a (tumbler switch), it is comprised as a switch which improved operability by making the operation handle 202 larger than the base body 201 (this kind of switch is generally called a "wide handle type switch"). On one side of the left and right both ends (right side in the illustrated example) on the front side of the operation handle 202, a display unit 203 is provided which displays the operation portion of the operation handle 202 by irradiating the light emitted from the light emitting source forward. When the electric power is not supplied from the power supply to the load, the light emitting source housed in the base 201 emits light and displays by the display unit 203.

By the way, in the conventional example, when the contact device is configured as a single pole switch or a two pole switch having a contact configuration of a single pole single throw (SPST) or a double pole single throw (DPST) Since the operation state of the load and the operation state of the operation handle 202 are determined as one operation, pressing the end of the operation handle 202 on the side indicated by the display unit 203 can switch the operation state of the load. Therefore, the display by the display unit 203 and the operation direction of the operation handle 202 can always be made to coincide. However, when the contact device is configured as a three-way switch or a four-way switch having a double throw (single pole twin throw or two pole twin throw) contact configuration, the operating state of the load and the operation handle 202 Since the operation state is not determined by one operation, there is a case where the display by the display unit 203 and the operation direction of the operation handle 202 do not coincide. In particular, in the case of the wide handle type switch, since the operation handle 202 is enlarged, the distance between the end portion on the side where the display portion 203 is provided and the end portion on the side where the display portion 203 is not provided also increases. It is easy to lose operability because the display by the display part 203 and the operation direction of the operation handle 202 do not correspond.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a switch and a display device with a display which can improve the operability by matching the display position and the operation direction of the operation handle even when a type contact device is used. .

In order to achieve the above object, the first aspect of the present invention provides a two-throw contact device that emits light at a voltage generated between a switch main body housed in a body and a switch main body provided in the switch main body. Light emitting sources and an operation handle having at least the width in the short width direction being substantially the same as or larger than the front face of the switch body and having the swing handle freely arranged on the front side of the switch body, the operating handle being the swing direction A first display portion for emitting the light emitted by one light emitting source to the outside is provided at one end in the end, and the other for emitting the light emitted by the other light emitting source to the other end in the swinging direction to the outside. It is characterized by two display units.

According to this, when the power supply from the power supply to the load is stopped, two light emitting sources alternatively emit light, and the light is emitted from one of the two display sections provided at both end portions of the operation handle, and the display is executed. In addition, since the light of the light emitting source is emitted only from the display portion provided at the end of the next operation side among the two display portions, the display position of the operation handle and the operation direction are completely coincident even when using a two-point contact device. To improve operability.

According to a second aspect of the present invention, in the first aspect of the present invention, the first and second display portions are provided on the front surface at both ends of the operation handle.

According to this, the visibility of the display portion is improved.

The 3rd aspect of this invention is the 1st and 2nd aspect of this invention WHEREIN: The light emission source is arrange | positioned at the both ends of an operation handle, respectively, It is characterized by the above-mentioned.

According to this, compared with the case where two light sources are arrange | positioned at a switch main body, the quantity of the light radiate | emitted from a display part can be increased and visibility can be improved.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the oscillation is supported by the base so as to be freely rotatable, and at the same time, the reverse handle is provided to switch the contact device in conjunction with the operation of the operation handle. A coupling portion for engaging with the inversion handle is provided on the back side, and the connecting means for electrically connecting the switching contact of the contact device and the two light emitting sources in a state in which the operation handle is coupled to the inversion handle is characterized in that it is provided.

According to this, operation handles with different dimensions can be replaced and used.

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

(Example 1)

Embodiment 1 of the present invention will be described in detail with reference to FIGS.

The switch with a display of the present embodiment is composed of a switch main body 1 and a handle block 2, and the rear end of the switch main body 1 is embedded in a buried hole (not shown) provided in the construction surface. It is embedded by a plate 100 consisting of a plate rim 101 and a cover plate 110.

The switch body 1 is a body 10 of a rectangular parallelepiped synthetic resin molded article having an open front surface (upper surface in FIG. 1), and a synthetic resin molded article formed in a rectangular rim shape and joined to the front side of the body 10. A base constituted by the cover 20 is provided. A pair of assembling protrusions 11 are provided on both outer surfaces along the longitudinal direction of the body 10 at intervals in the longitudinal direction of the body 10, and an assembling piece is provided from the rear edge of the cover 20. The body 10 and the cover 20 are provided by extending the back 21 (downward in FIG. 1) and engaging the assembly protrusion 11 with the assembly hole 21a provided in the assembly piece 21. Is combined.

The body 10 includes three contact devices 30A, 30B, 30C for connecting electric wires (not shown) inserted into the body through the wire insertion holes 12 provided in the rear wall of the body 10, and a contact device ( The contact device 40 for opening and closing the electric circuit between 30A) and the contact devices 30B and 30C is housed (see FIG. 3). On the other hand, the opening 22 of the central portion of the cover 20 is mounted in a form in which the inversion handle 50 of the synthetic resin molding is supported so as to be swingable with respect to the cover 20, and according to the swing of the inversion handle 50. The contact device 40 is opened and closed. On the front side of the inversion handle 50, the operation handle 60 (handle block 2) of the synthetic resin molding overlapping the front side of the cover 20 is detachably coupled and the operation handle 60 is moved to the operation unit. The inversion handle 50 swings so that the contact device 40 opens and closes.

On the inner side of the body 10, a plurality of retaining ribs 13 and retaining grooves 14 for determining positions of the contact devices 30A, 30B, 30C and the contact device 40 are formed, respectively. The contact device 30A is disposed in one end in the longitudinal direction of the body 10, the contact devices 30B and 30C are disposed in the other end in the longitudinal direction of the body 10, and the contact device 40 is placed in the body. It is arrange | positioned in the center part of the longitudinal direction of (10).

The contact device 30A includes a terminal plate 32 formed of a conductive metal plate, and a release button 34 of a synthetic resin molding abutting on two locking springs 33 and two locking springs 33. The terminal plate 32 is formed into a quadrangular shape in which approximately one side is opened by continuously connecting integrally the front circumference of the cast piece 32a and the vertical piece 32b opposite to the cast piece 32a with the connecting piece 32c, and the connecting piece 32c. The body 10 is accommodated in the body 10 along the opening surface of the body 10. In addition, the lock spring 33 is accommodated between the cast piece 32a and the vertical piece 32b. The support plate 32d is provided in the terminal plate 32 along the inner bottom surface of the body 10 from the rear end edge of the vertical piece 32b toward the central portion in the longitudinal direction of the body 10, and the support piece 32d. At the distal end portion, a point projection 32e is formed which is bent in an inverted V shape and protrudes forward (see Fig. 3).

The contact devices 30B and 30C are provided with terminal plates 45 and 46, respectively, and the terminal pieces 45a and 46a to which the terminal wires 45 and 46 come in contact with each other through the wire insertion holes 12 provided in the body. ) And connecting pieces 45c and 46c connecting between the vertical pieces 45b and 46b abutting on the holding ribs 13 provided on the body 10, respectively, and between the cast pieces 45a and 46a and the vertical pieces 45b and 46b. ) And contact holding pieces 45d and 46d, which are integrally extended from the connecting pieces 45c and 46c and provided with fixed contacts 41a and 41b at the distal ends, respectively. The distal end portions of the contact holding pieces 45d and 46d of the both contact devices 30B and 30C are arranged to face each other at the center of the base, and the fixed contacts 41a and 41b are opposed to each other at the center of the base.

The contact devices 30B and 30C are disposed on the same side (left side in FIG. 3) in the longitudinal direction of the body 10, and the cast pieces 45a and 46a and the vertical piece (of the respective terminal plates 45 and 46). One lock spring 33 is accommodated between 45b and 46b, respectively. In addition, one release button 34 is disposed between the locking springs 33 of the both terminal plates 45 and 46.

As for the lock spring 33, one end of the strip-shaped spring spring forms the contact piece 33a in an S shape, and the other end forms the lock piece 33b in a J shape, and the contact piece 33a is formed. It is formed in the shape which connected the locking piece 33b continuously and integrally with the connection piece 33c. In addition, the contact piece 33a and the locking piece 33b protrude in a direction away from the connecting piece 33c. When attaching the lock spring 33 between the slabs 32a, 45a, 46a of the terminal plates 32, 45, 46 and the vertical pieces 32b, 45b, 46b, the connecting piece 33c is placed on the vertical piece 32b. , The contact pieces 33a and the locking pieces 33b are opposed to the cast pieces 32a, 45a, 46a in a manner to abut on the 45b, 46b. Here, the distal end portions of the contact pieces 33a and the locking pieces 33b move away from the connecting piece 33c toward the distal end side and extend substantially parallel to each other. Further, the distal ends of the contact pieces 33a and the locking pieces 33b are disposed inclined upward so as to decrease the distance from the connecting pieces 32c, 45c, 46c toward the distal end side.

The electric wire insertion hole 12 mentioned above is formed in the site | part corresponding between the slab 32a, 45a, 46a of the terminal board 32, 45a, 46a, the contact piece 33a, and the locking piece 33b. Therefore, when the electric wire is inserted into the body of the switch main body 1 through the electric wire insertion hole 12, the front-end | tip part of an electric wire will fit between the slabs 32a, 45a, 46a, the contact piece 33a, and the locking piece 33b. The wires are brought into contact with the slabs 32a, 45a, and 46a, the wires are electrically connected to the contact devices 30A, 30B, and 30C, and the periphery of the tip of the locking piece 33b is pressed against the wires. It is kept mechanically so that it does not fall out. Moreover, the operation hole 15 penetrates the back wall of the body 10 corresponding to the release button 34, and connects an electric wire to the contact apparatus 30A, 30B, 30C as mentioned above. When the tool is inserted into the operation hole 15 and the release button 34 is pressed in one state, the pressing piece (not shown) provided in the release button 34 presses the locking piece 33b to bend in the direction away from the electric wire. In addition, the mechanical maintenance of the wires is released so that the wires can be pulled out of the aircraft.

The contact device 40 has an opening and closing element 43 formed in a rectangular or U-shape with an open front and arranged so that the rear end portion abuts on the front end of the point projection portion 32e. The opening and closing element 43 is provided with movable contacts 42a and 42b facing outwards near the tip ends of both legs, respectively, and rotates around the tip end of the point protrusion 32e as a swing point to each fixed contact 41a and 41b. Each movable contact 42a, 42b is made to contact selectively. That is, while the movable contact 42a is in contact with the fixed contact 41a, the movable contact 42b is separated from the fixed contact 41b, and is movable while the movable contact 42b is in contact with the fixed contact 41b. The contact 42a is separated from the fixed contact 41a. One end part of the inversion spring 44 which consists of a coil spring is inserted between the leg pieces of the switching element 43, and the cylinder part 54 which the other end of the inversion spring 44 provided in the back side of the inversion handle 50 is provided. The reversal spring 44 is held in a compressed state between the opening and closing element 43 and the reversing handle 50 by being inserted into the retaining hole 54a.

The reversing handle 50 is made of a synthetic resin molded article in the form of a rectangular box, and point protrusions 51 having a shape in which the front end portion is narrowed are protruded laterally on both sides along the longitudinal direction. On the other hand, a pair of bearing protrusions 23 protruding forward from the periphery of the opening 22 are provided on both sides of the central portion in the longitudinal direction of the cover 20 and in the width direction (short longitudinal direction), thereby supporting both bearings. On the opposite surface of the projection piece 23, a bearing concave portion 24 into which the point projection 51 of the inversion handle 50 is inserted is formed (Fig. 1). The bearing concave portion 24 swingably supports the point protrusion 51 at least at the front end portion. The front surface of the inversion handle 50 is provided with the storage recessed part 52 for accommodating the circuit board 70 which provided the position indicator 71 mentioned later, and the both ends of the inversion handle 50 in the longitudinal direction. In the coupling ring 53 for engaging the handle block 2 is provided with a protrusion.

Moreover, each pair of attachment ring 26 protrudes and is provided in the opposing both side surface of the cover 20 in the longitudinal direction. The attachment ring 26 has a function of holding the switch main body 1 on the plate edge 101 by engaging with the device hole 102 provided in the plate edge 101. However, on one side of the cover 20, the pair of grooves 20a allow the device ring 26 to protrude elastically and bend elastically. The engagement hole 102 is released so that the switch main body 1 can be removed from the plate edge 101.

The circuit board 70 accommodated in the storage concave portion 52 on the front side of the inversion handle 50 is formed in the shape of a rectangular flat plate with a circular indentation hole 70a penetrated at the center thereof, and a conductive pattern 70c is formed on the surface thereof. It is printed. The lamp contact terminals 73a, 73b, 73c and the common contact terminal 73d, which are bent at approximately right angles to be bent at right angles and formed in the L-shape, are mounted on the circuit board 70 so as to rise from the surface. The contact terminals 73a and 73b are electrically connected via the conductive pattern 70c and the resistance element 72a, and the remaining lamp contact terminal 73c and the common contact terminal 73d are the conductive pattern 70c and the resistor. It is electrically connected via the element 72b. Fixing grooves 70b are provided at both ends of the circuit board 70, respectively, and one end of the contactor 47 is press-fitted to these two fixing grooves 70b, respectively. The two contacts 47 are each made of a strip-shaped metal plate, and are electrically connected to the conductive pattern 70c of the circuit board 70 at the distal end side than the portion fixed to the fixing groove 70b. The tube part 54 protrudes toward the front in the center of the bottom face of the storage recessed part 52, and the circuit board 70 is fixed in the storage recessed part 52 by press-ining this cylinder part 54 to the press-in hole 70a. It is supposed to be. Here, an insertion through hole (not shown) is provided in the bottom of the storage concave portion 52 to insert the contact 47 into which the one end is fixed to the circuit board 70. The distal end portion of the 47 is in contact with the connecting pieces 45c and 46c of the terminal plates 45 and 46 constituting the contact devices 30B and 30C from the front (see Fig. 3). In addition, a groove (not shown) communicating with the storage concave portion 52 and the holding hole 54a is provided in the tubular portion 54, and the tip of the common contact terminal 73d is connected to the reverse spring 44 through the groove. In contact with each other, the common contact terminal 73d conducts with the contact device 30A via the inverted spring 44 and the opening and closing element 43. This type of three-way switch is often used for applications such as turning on / off the lighting load from two places, and placing the three-way switch at each location to operate the lighting load on / off at either location. You can do that.

The storage recessed part 52 of the inversion handle 50 is closed from the front by the protective cover 80 which consists of synthetic resin molded articles. The protective cover 80 is formed in the shape of a rectangular box with an open back surface, and the reversing handle (by holding the locking ring 81 protruding from both sides in the longitudinal direction to the locking portions 56 provided on both sides of the reversing handle 50). 50) (see FIG. 3). On the front surface (upper surface in FIG. 1 and FIG. 3) of the protective cover 80, three insertion passage grooves 82 into which lead plates 93, 93, and 94, which will be described later, are inserted, are installed side by side in the longitudinal direction. It is.

The handle block 2 is coupled to the operation handle 60 formed in a rectangle larger than the front surface of the switch main body 1, the two position indicator lights 71a and 71b, and the back side of the operation handle 60. And a lamp holder 90 for holding the two position indicators 71a and 71b, and a lead plate 93 for electrically connecting the position indicators 71a and 71b with the contact devices 30A, 30B and 30C. , 93, 94). The operation handle 60 includes a main portion 61 formed in a gentle curved shape in which the front surface is convex forward, and a pair of side walls extending rearward from both edges along the longitudinal direction of the main portion 61 ( 62, a engaging projection piece for engaging the inversion handle 50, and six fixing ribs 64 protruding rearward from the four corners and the central end of the main part 61. In the center of both ends along the longitudinal direction of the front part of the main part 61, the cylindrical protrusion 61a which shows the operation position of the operation handle 60 protrudes. The engagement projection 63 is provided in three rows at both ends in the longitudinal direction of the back of the main portion 61, and is engaged with the engagement ring 53 provided on the reverse handle 50 to engage with the engagement ring 63a. Is provided at the tip portion protruding backward (see FIG. 4).

The lamp holder 90 is provided with a rectangular plate-shaped holder 91 that is housed and fixed inside the operation handle 60 and at both ends of the holder 91 in a molded article made of transparent synthetic resin. Two display sections 92 are disposed so as to block both side surfaces facing the longitudinal direction of 60, and to emit light from the position indicators 71a and 71b made of neon lamps to the outside, respectively. The holding portion 91 is provided with recesses 91a for storing and holding the position indicators 71a and 71b at both ends adjacent to the display portion 92, respectively, and the lead plates 93, 93, 94 at the center portion thereof. ) Are provided with three support grooves 91b for supporting each. The two lead plates 93 and 93 are in a mirror image relationship with each other, and the support pieces 93a are respectively pressed into the support grooves 91b at both ends, and the support pieces 93a from one end side of the support pieces 93a. In the planar view extending in the thickness direction of the cross-section), the connecting piece 93b in the form of a substantially crot is formed integrally by processing the metal plate. In addition, the lead plate 94 is approximately T in a plan view extending in the thickness direction of the support piece 94a from one end of the support piece 94a pushed into the center support groove 91b and the support piece 94a. The female connecting piece 94b is integrally formed by processing a metal plate.

Thus, two terminals of one position indicator 71a are connected to the connecting piece 93b of one lead plate 93 and the connecting piece 94b of lead plate 94, respectively, and the other position indication The two terminals of the back 71b are connected to the connecting piece 71b of the other lead plate 93 and the connecting piece 94b of the lead plate 94, respectively, and three lead plates 93 and 93 are connected. , The support pieces 93a, 93a, 94a of the 94 are inserted into the support grooves 91b of the lamp holder 90, respectively, and then inserted into the six through holes 91c provided in the holder 91, respectively. By caulking the tip of the passage fixing rib 64, the lamp holder 90 holding the position indicators 71a, 71b and the lead plates 93, 93, 94 is fixed to the operation handle 60. The handle block 2 is formed. In addition, the six engagement protrusions 63 which protrude from the back surface of the operation handle 60 are rearward of the lamp holder 90 through a rectangular insertion through hole 91d penetrating the holder 91. Is protruding.

The handle block 2 comprised as mentioned above has the engaging ring 63a provided in the front-end | tip of each of the three engaging projection pieces 63 which protruded back from the both ends of the operation handle 60, respectively. Is engaged to the front side of the inversion handle 50 by engaging the engagement ring 53 of the inversion handle 50. When the handle block 2 is attached to the switch body 1, the support pieces 93a, 93a, 94a of the lead plates 93, 93, 94 are inserted through the insertion through grooves 82 provided in the protective cover 80. The rear ends are in electrical contact with the lamp contact terminals 73a, 73b, and 73c, respectively (see Fig. 3). For this reason, one position indicator 71a is connected between the contact devices 30A and 30B via the resistor element 72a, and the other position indicator 71a is connected between the contact devices 30A and 30C via the resistor element 72a. The side position indicator 71b is connected, and the contact devices 30B and 30C are connected via the resistance element 72b, so that the position indicators 71a and 71b are turned off when the lighting load is turned off. This alternatively lights up.

Here, the plate edge 101 is provided with three sets of device holes 102, and at most three switch bodies 1 can be attached side by side in the short width direction (see FIG. 2), so that the center device hole 102 is provided. For the switch main body 1 attached to the head), the hook main body 94a of the center engaging projection piece 94 is used, and for the switch main body 1 attached to the device holes 102 at both ends, By using the engagement ring 94a of the engagement projection piece 94 of one end, the device position of the handle block 2 is shifted | deviated from the short width direction of the switch main body 1 (refer FIG. 1). With such a configuration, it is not necessary to prepare three types of handle blocks 2 according to the device position of the switch body 1 with respect to the plate rim 101, and it is common regardless of the device position of the switch body 1. Since the handle block 2 can be used, there exists an advantage that a workability improves. Here, in the handle block 2 attached to the switch main body 1 located in the both ends of the plate edge 101, only the engagement ring 94a (engagement projection piece 94) of one end side is inverted handle ( Used for engagement with 50), the engagement hook 94a (the engagement protrusion 94) on the other end side is pushed out of the opening 103 of the plate rim 101, so that it is pushed out It is necessary to provide the receiving means for receiving the fitting ring 94a (the locking projection 94) on the plate rim 101. Therefore, in the present embodiment, the engagement ring pushed out from the opening 103 of the plate frame 101 is combined with a pair of holes 106 provided in the plate frame 101 to attach the metal parts. Each of the holes 94a (engaging projections 94) can be inserted into the holes 106 and received. In addition, an increase in the manufacturing cost of the plate frame 101 can be suppressed as compared with the case of separately providing a receiving means.

Thus, the operation of the present embodiment constituted as described above will be briefly explained. When the right end of the operation handle 60 (the handle block 2) is located behind the left end (below the figure) as shown in FIG. The movable contact 42b is in contact with the fixed contact 41b. In this state, the reverse spring 44 is in a state in which the intermediate portion is bent to the left side with respect to both ends, and the movable contact 42b is pressed against the fixed contact 41b by the reverse spring 44 to apply a contact pressure. On the other hand, when the left end of the operation handle 60 is pushed backward from this state, since the reversal handle 50 swings in the counterclockwise direction in the drawing, the reversal spring 44 is in a state in which the intermediate part is bent to the right with respect to both ends. At this time, the opening / closing element 43 is rotated in the clockwise direction in the drawing to separate the movable contact 42b from the fixed contact 41b, and simultaneously contact the movable contact 42a with the fixed contact 41a. In the state where the movable contact 42a is in contact with the fixed contact 41a, the left end of the operation handle 60 is located behind the right end. That is, whenever an end portion located forward of the operation handle 60 is pushed backward, the contact device 40 has the fixed contact 41a, the movable contact 42a, the fixed contact 41b and the movable contact ( The contacting and work separation of 42b) are alternatively converted.

In addition, as described above, in the state where the handle block 2 is attached to the switch main body 1, the two position indicator lights 71a and 71b are the contact devices 30A and 30B and the contact devices 30A and 30C. Since the resistance elements 72a are inserted between the two contact devices 30B and 30C at the same time as they are respectively connected between the contact points, the contact devices 30A and 30B are the fixed contact 41a and the movable contact 42a. If the lighting load is turned off while conducting through), only the position indicator 71b connected between the contact devices 30A and 30C is turned on, and the contact devices 30A and 30C are fixed to the fixed contact 41b. And the position load 71a connected between the contact devices 30A and 30B is turned on when the lighting load is turned off while the conduction is conducted via the movable contact 42b. That is, in this embodiment, it is always provided in the edge part (edge part of the side operated next) of the side located ahead in the both ends of the operation handle 60 (handle block 2) at the time of turning off the illumination load. Since the light of the position indicator 71a or 71b is emitted only on the display surface of the display portion 92, the display position of the operation handle 60 can be completely matched with the operation direction, and the operability is improved as compared with the conventional example. Can be predicted.

In addition, in this embodiment, although the case where three switch main bodies 1 are attached to the plate edge 101 was illustrated, as shown in FIG. 5, two switch main bodies 1 are provided in both ends of the plate edge 101. As shown in FIG. In the case of attaching or by attaching one switch main body 1 to the center of the plate edge 101 as shown in FIG. 6, the width | variety width along the short width direction of the switch main body 1 is 1.5, respectively. It is good to combine with the handle block 2 which consists of the operation handle 60 and the prism 90 extended by 2 times and 3 times.

(Example 2)

As shown in FIG. 7, the basic structure of this embodiment is common to Embodiment 1, the same code | symbol is attached | subjected to a common component, and illustration and description are abbreviate | omitted suitably. In addition, even if the shape is slightly different, the same reference numerals are given if the functions are common.

In the first embodiment, two position indicator lights 71a and 71b are provided in the handle block 2, but in the present embodiment, the indicator block 3 including the two position indicator lights 71a and 71b is switched. It is provided in the main body 1.

As shown in FIG. 8 and FIG. 9, the indicator block 3 includes two position indicators 71a and 71b, a resistance element 72, and one terminal of the position indicators 71a and 71b. Is connected to the lead plate 4 for connecting the lead plate 4, the lead terminal 5 for connecting the other terminal of the position indicator light 71b and the contact device 30C, and one terminal of the position indicator light 71b. Lead plate 6 for connecting contact device 30A via 72, lead plate 7 for connecting contact terminal 30B with the other terminal of position indicator 71a, and position indicator light 71a. And 71b), the resistance element 72, and the holding body 8 holding the lead plates 4-7.

The lead plates 4 and 5 are arranged in parallel with each other, and the connecting piece 5a which is bent and substantially L-shaped at the tip of the lead plate 5 is formed. In addition, the connecting pieces 6a and 7a which are bent and substantially L-shaped also are formed in the front-end | tip of the lead plates 6 and 7, respectively. The holder 8 is made of a synthetic resin molded article, and is arranged in parallel with two holders 8a and 8a each having a substantially U-shape in plan view and storing the position indicators 71a and 71b inside, respectively. A pair of connecting portions 8b, 8b for connecting the two holding portions 8a, 8a in a form covering the lead plates 4, 5, and rear ends of both ends of the connecting portion 8b (in FIG. 8). The pair of abutment pieces 8c and 8c projecting downward and abutting the connecting pieces 5a to 7a of the lead plates 5 to 7 and rearward from the central portion of each holding portion 8a (see FIG. 8). 8 d of engaging projection pieces which have the engaging ring 8e at the front-end | tip, which protrude to the lower part of the cover, and engage with the periphery of the opening window 22 of the cover 20, and the front part of each holding part 8a. A pair of protrusions protruding laterally (upper surface in FIG. 8) to support both ends of the position indicators 71a and 71b held in the holding portion 8a from the front. The support pieces 8f and 8f are integrally formed. Moreover, the light block 3 is comprised by insert-molding the four lead plates 4-7 which connected the position indicator light 71a, 71b and the resistance element 72 to the holding body 8. As shown in FIG.

As shown in FIG. 7, the indicator block 3 configured as described above opens the engaging ring 8e provided at the distal end of the engaging projection piece 8d of the holding body 8. It is attached to the cover 20 by hooking on the periphery of the window 22. At this time, the terminal plate which comprises the connection piece 46c of the terminal board 46 and the contact device 30A which the front-end | tip part of each connection piece 5a-7a of the lead plates 5-7 comprises the contact device 30C ( The connecting piece 32c of 32 and the connecting piece 45c of the terminal plate 45 constituting the contact device 30B are brought into contact with each other from the front. For this reason, one position indicator 71a is connected between the contact apparatuses 30A and 30B via the resistance element 72, and the other position indicator 71b is connected between the contact apparatuses 30A and 30C. ) And the contact devices 30B and 30C are connected at the same time, and the same position indicators 71a and 71b are turned on at the same time as the embodiment (1) when the lighting load is turned off. .

10 is a perspective view showing the inversion handle 50 in the present embodiment. In this embodiment, as the display block 3 is provided in the switch main body 1, the pair of connecting portions of the holding body 8 does not prevent the indicator block 3 from disturbing the swing of the inversion handle 50. A pair of longitudinal grooves 58 avoiding 8b and 8b are formed at both ends in the swinging direction of the inversion handle 50. That is, since the pair of connecting portions 8b and 8b are stored in the vertical grooves 58 of the inverting handle 50, respectively, the cover 20 is covered with the inverting handle 50 without interfering with the connecting portions 8b and 8b. It is possible to oscillate against.

On the other hand, the handle block 2 is comprised from the operation handle 60 and the pair of prism 130 provided in the both ends in the swinging direction of the operation handle 60. The prism 130 has a function of condensing light emitted from the position indicators 71a and 71b and exiting the front and side surfaces of the handle block 2 and having a curved incidence surface. The condenser 131 for condensing the light emitted by 71b) and the display 132 disposed at the end of the operation handle 60 and condensing the light condensed by the condenser 131 are integrally formed of a transparent synthetic resin material. Thus, both ends of the operation handle 60 are fixed to the back side of the operation handle 60. The handle block 2 comprised in this way engages the engagement ring 63a of the front-end | tip of the engagement protrusion piece 63 which protruded to the back side of the operation handle 60, and the engagement ring 53 of the inversion handle 50. It is attached to the switch main body 1 by engaging in (refer FIG. 7). In addition, since operation | movement of this embodiment is common with Embodiment 1, description is abbreviate | omitted.

Thus, in the state where the handle block 2 is attached to the switch main body 1, the two position indicator lights 71a and 71b are connected between the contact devices 30A and 30B and 30A and 30C, respectively. Since the resistance element 72 is inserted between the two contact devices 30B and 30C, the contact devices 30A and 30B are in a conductive state via the fixed contact 41a and the movable contact 42a. If the lighting load is off, only the position indicator 71b connected between the contact devices 30A and 30C lights up, and the contact devices 30A and 30C turn on the fixed contact 41b and the movable contact 42b. When the lighting load is extinguished in the state of conducting via, only the position indicator 71a connected between the contact devices 30A and 30B is turned on. That is, also in the present embodiment, similarly to the embodiment (1), at the time of turning off the lighting load, the end of the side (front side) located in front of both ends of the operation handle 60 (the handle block 2) is always Since the light of the position indicator 71a or 71b is emitted only from the display surface of the display portion 132 provided on the side to be operated), the display position of the operation handle 60 and the operation direction can be completely coincident, The improvement of operability can be predicted compared with the conventional example. In addition, since the position indicators 71a and 71b are provided in the switch main body 1, the position indicators 71a and 71b do not need to be provided in the handle blocks 2 having different sizes, respectively. ), There is an advantage that the cost can be reduced. However, since the distance between the display portion 132 and the position indicators 71a and 71b is reduced, the position indicator on the handle block 2 is described in the embodiment 1 regarding the amount of light emitted from the display portion 132. It is advantageous to provide 71a and 71b. In addition, in order to prevent the light of the position indicators 71a and 71b from leaking from the gap between the window hole 111 of the cover plate 110 and the handle block 2 attached to the front of the plate rim 101, It is preferable to overlap both ends (display portion 132) of the block 2 and the cover plate 110 in the front-rear direction (see FIG. 7).

(Example 3)

This embodiment is characterized by the handle block 2, and as shown in Fig. 11, other configurations are common to the second embodiment. Therefore, the same code | symbol is attached | subjected to the component common to Example 2, and illustration and description are abbreviate | omitted suitably. In addition, even if the shape is slightly different, the same reference numerals are given if the functions are common.

The handle block 2 according to the present embodiment has an operation handle 60 formed in a flat box shape open to the rear (bottom in FIG. 11) in a rectangle as viewed from the plane, the display portion 132 and the light converging portion 131. It consists of two prisms (130, 130) having a. The two prisms 130 are the same, and as shown in FIG. 20, the display portion 132 and the light collecting portion 131 are integrally formed of a transparent synthetic resin material. The light collecting part 131 is fixed to the inner bottom surface of the operation handle 60 by a fixing piece 131a protruding from one end in a flat rectangular shape. That is, the fixing piece 131a is provided with a pair of holes penetrating in the thickness direction, and each of the protrusions 64 protruding from the inner bottom surface of the operation handle 60 is inserted into the holes to caulk the tip portion. ), The fixing piece 131a is fixed to the operation handle 60. The display portion 132 is formed in a belt shape projecting in an elliptical shape in plan view, and the cross-sectional shape of the tip portion thereof is formed in an arc shape. The elliptical long hole 67 penetrates in the front-back direction at both ends of the operation handle 60, and the display part 132 has the long hole 67 when fixing the fixing piece 131a to the operation handle 60. The tip portion of the display portion 132 protrudes from the front surface of the manipulation handle 60 by being inserted into the through portion.

Therefore, in the present embodiment, since the light emitted from the position indicators 71a and 71b enters the light collecting portion 131 and exits only in front of the operation handle 60 through the display portion 132, not only the front side but also the side light is emitted. Compared with the first and second embodiments, the brightness of the display unit 132 viewed from the front is improved.

According to the present invention, when the power supply from the power supply to the load is stopped, two light emitting sources alternatively emit light, and the light is emitted from one of the two display sections provided at both end portions of the operation handle, and the display is executed. In addition, since the light of the light emitting source is emitted only from the display portion provided at the end of the next operation side among the two display portions, even when the switch type contact device is used, the display position of the operation handle and the operation direction coincide completely. It is effective to improve operability.

Claims (4)

The switch main body in which a double throw type contact device is stored in a body, Two light emitting sources provided in the switch main body and selectively emitting light at a voltage generated between the switching contacts of the contact device; It is provided with the operation handle arrange | positioned so that oscillation is free in the front side of a switch main body at least the dimension of a direction of a width | variety being about the same or large size as the front surface of a switch main body, The operation handles include: the two light emission portions at one end portion in the rocking direction, at a first display portion that emits light emitted by one of the two light emitting sources to the outside, and at the other end portion in the rocking direction. A second display unit which emits light emitted from the other light emitting source of the circle to the outside Indication switch. The method of claim 1, The first display portion and the second display portion are provided on front surfaces at both ends of the operation handle. Indication switch. The method according to claim 1 or 2, The two light emitting sources are disposed at both ends of the operation handle, respectively. Indication switch. The method of claim 3, wherein It is provided with a reversing handle which is supported so that rocking | fluctuation can rotate freely to the said body, and at the same time interlocks with the operation of the said operation handle, and switches the said contact apparatus, An engaging portion is provided on the rear side of the operation handle to engage with the inversion handle, And a connecting means for electrically connecting the switching contact of the contact device and the two light emitting sources with the operation handle coupled to the inversion handle. Indication switch.

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