TWI567772B - Switch - Google Patents

Description

switch

The present invention relates to a switch, and more particularly to a switch for a piano key which reverses a contact by a pressing operation of a piano key.

It is known that the former provides a piano-keyed switch that reverses the contact by the pressing operation of the piano key.

For example, a switch of the push button type switch device shown in Fig. 15 is known (refer to Japanese Laid-Open Patent Publication No. 2008-109511). Japanese Patent Publication No. 11-162292 is referred to as Document 1.

The push button switch device of Document 1 includes a container body 301 and a lid 302. The push button switch device is mounted on the cover 302 and has an operating body 310 that can be arbitrarily pushed in and returned. The push button switch device is provided with a button 314 on the operating body 310. The push button switch device is assembled inside the container body 301 with a terminal member 303, a release button 304, a fixed contact member 305, a movable contact support terminal 306, and a movable contact support terminal 306 arbitrarily swingable. Movable contact member 307. The fixed contact member 305 is provided with a fixed contact 305a. The movable contact member 307 is provided with a movable contact 307a. The movable contact member 307 is rotatably supported by the movable contact supporting spring portion 306a of the movable contact supporting terminal 306. The push button type switching device causes the movable contact 307a to be in contact with or separated from the fixed contact 305a in accordance with the swing of the movable contact member 307.

In the push button type switching device, the converter 313 and the movable contact member 307 form a coupling mechanism, and the movable contact member 307 is also oscillated in conjunction with the swing of the converter 313. In the push button type switching device, a coil spring 315 is disposed at the bottom of the container body 301, and the movable contact member 307 and the converter 313 are pressed toward the lid body 302 by the coil spring 315. The push button type switching device constitutes a toggle mechanism by a coupling mechanism formed by the converter 313 and the movable contact member 307 by the urging force of the coil spring 315.

The push button switch device of Document 1 is composed of an operating body 310, a slide driving body 311, a pressing member 312, and a converter 313, and has a contact opening and closing mechanism that swings the movable contact member 307. The pressing member 312 is configured by integrally forming the operating body pressing spring portion 312b and the sliding driving body pressing spring portion 312c and the substrate 312a. The pressing member 312 presses the spring portion 312b by the operating body, and presses the operating body 310 in the returning movement direction. The slide driving body pressing spring portion 312c is engaged with both end faces of the slide driving body 311, and the slide driving body 311 is pressed almost uniformly from both sides. In the push button type switching device, the sliding driving body 311 is returned to the neutral position by the pressing force of the sliding driving body pressing the spring portion 312c.

On the other hand, the push button type switching device has a case where an operation sound is generated by the movement of the slide driving body 311 caused by the pressing operation of the button 314. The piano key switch requires further quietness, and the use of the above-described push button switch device is still insufficient, and further improvement is required.

Accordingly, it is an object of the present invention to provide a switch that is more quiet.

The switch (10) of the present invention includes a container body (5), a piano key lever (43), a return spring (37), a switch mechanism portion (40), a reverse lever (31), and a reversing mechanism portion (41). ). The container body (5) is provided with a button lever (32) for pressing operation on the front surface. The piano key lever (43) is disposed in front of the container body (5) so as to cover the front surface of the container body (5). The piano key lever (43) is rotatably attached to the container body (5) at one end. The piano key lever (43) is configured such that the rear surface can be brought into contact with the button key lever (32) in a docked state. The return spring (37) is housed in the container body (5). The return spring (37) applies a force to the button key lever (32) in a direction opposite to the direction in which the operation button key lever (32) is pressed. The switch mechanism portion (40) is housed in the container body (5). The switch mechanism unit (40) opens and closes the contact point by each pressing operation of the button key lever (32). The reverse handle (31) is configured to swing inside the return spring (37). The reversing mechanism portion (41) causes the inverting lever (31) to alternately swing in the opposite direction with each pressing operation of the button lever (32). The reversing mechanism unit (41) includes a slide cam (33) and a spring piece (33a). The slide cam (33) is disposed between the button key lever (32) and the reverse handle (31). The slide cam (33) is slid in a direction perpendicular to the direction of the pressing operation so that the button key lever (32) pushes only one side of the reverse handle (31). The spring piece (33a) is formed of metal. The spring piece (33a) is disposed on the outer side of the slide cam (33). The spring piece (33a) is characterized in that the sliding cam (33) is biased in a direction opposite to the sliding direction of the slide cam (33). Thereby, the switch of the present invention can be made more excellent in quietness.

The drawings show one or more embodiments in accordance with the present invention, but are merely illustrative and not limiting of the invention.

Hereinafter, the piano key lever type switch 10 of the present embodiment will be described with reference to Figs. 1 to 11 . In the drawings, the same components are denoted by the same reference numerals and the description thereof will not be repeated. However, for the sake of clarity of explanation, there is also a case where the size and positional relationship of the members shown in the respective drawings are exaggerated. In the following description, each element constituting the present embodiment may be configured such that one member constitutes a plurality of elements and one member is used as a plurality of elements, and conversely, a plurality of members may share the function of one member. achieve. Hereinafter, the switch 10 of the piano key lever type of the present embodiment is also referred to as a switch 10.

As shown in FIGS. 1 and 2, the switch 10 includes a container body 5, and a front surface is provided with a push button lever 32 for performing a pressing operation. The switch 10 is provided with a piano key lever 43 and is disposed in front of the container body 5 so as to cover the front surface of the container body 5. The piano key lever 43 is attached in such a manner that one end of the piano key lever 43 is rotatable on the container body 5. The piano key lever 43 is configured such that the rear surface can be in contact with the button key 32 in a docked state. The switch 10 is provided with a return spring 37, and applies a force in a direction opposite to the direction in which the pressing operation is received in the button key 32 of the container body 5, and is applied to the button key 32. The switch 10 is provided with the switch mechanism unit 40, and the contact 100 is opened and closed every time the button key 32 of the container body 5 is pressed. The switch 10 is provided with a reverse lever 31 and is swingable inside the return spring 37. The switch 10 is provided with a reversing mechanism portion 41, and the pressing lever 31 alternately swings in the opposite direction with each pressing operation of the button lever 32.

The reversing mechanism unit 41 is provided with a slide cam 33 and is disposed between the push button lever 32 and the reverse lever 31, and can be perpendicular to the direction of the pressing operation so that only one side of the reverse lever 31 is pushed by the push button lever 32. The direction of the slip. The reversing mechanism portion 41 is provided with a spring leaf piece 33a made of metal, and is provided on the outer side of the slide cam 33, and applies a force to the slide cam 33 in a direction opposite to the slip direction of the slide cam 33.

Thereby, the switch 10 has an effect of being able to be more excellent in quietness.

Hereinafter, a more specific configuration of the switch 10 will be described.

As shown in FIG. 11, the switch 10 can be used by being attached to the mounting frame 2 provided on a construction surface (not shown) such as a wall surface of a building.

The switch 10 is provided with a switch body 1 having a button key lever 32 to reverse the contact 100 every time the pressing operation is performed. The button key lever 32 can display a figure or a character indicating the direction in which the switch body 1 is disposed by the unevenness provided on the surface side of the button key lever 32. The switch 10 is provided with a piano key lever 43 so as to be opposed to the front surface of the switch body 1 (upper side of the paper surface of FIG. 1), and one end portion is rotatably attached to the switch body 1 and the button key lever 32 can be pushed in. . The switch 10 includes a container body 5 in which the switch body 1 has a rectangular parallelepiped shape. The container body 5 is held by the mounting frame 2. The mounting frame 2 has a rectangular frame shape and has a window hole 2a for mounting the appliance. The mounting frame 2 is configured such that the cover frame 120 having the first opening window 120a longer and wider than the window hole 2a of the mounting frame 2 and the second opening window 130a can be provided on the front surface side of the mounting frame 2. The decorative cover 130 is arranged in an overlapping manner. The mounting frame 2 is provided with three pairs of appliance mounting holes 2b along the longitudinal direction of the mounting frame 2.

The switch 10 is such that the size of the container body 5 is equal to the size of a series of modules corresponding to three points of one module of the embedded wiring device. The container body 5 is provided with a casing 5a and a main body 5b. The main body 5b is formed into a bottomed cylindrical outer shape having a front surface opening. The main body 5b can be formed by a synthetic resin molded article. The casing 5a is formed into a bottomed cylindrical outer shape having a rear surface opening that is joined to the front surface side of the main body 5b. The casing 5a can be formed by a synthetic resin molded article. The casing 5a is provided with an assembly piece 3 extending rearward from both side edge edges of the casing 5a in the short side direction. The main body 5b is provided with assembly projections 6 that can be coupled to the assembly holes 4 of the casing 5a on both side surfaces in the short-side direction of the main body 5b. The assembly projection 6 is provided with an inclined surface 6a whose projection size from the main body 5b is smaller toward the casing 5a side. The assembly protrusion 6 is configured such that the assembly piece 3 can be coupled to the assembly protrusion 6 by covering the case 5a with the body 5b. The container body 5 can be coupled to the casing 5a by fitting the assembly hole 4 of the assembly piece 3 provided in the casing 5a with the assembly protrusion 6 of the main body 5b.

The switch 10 has a dimension in the short-side direction of the container body 5 which is a size of one-third of the dimension of the longitudinal direction of the window hole 2a of the mounting frame 2. Further, the container body 5 has a dimension in the longitudinal direction of the container body 5 which is slightly equal to the dimension in the short side direction of the window hole 2a of the mounting frame 2. As shown in FIGS. 2, 7, and 10, the container body 5 has a first attachment claw 11a projecting from a first side surface perpendicular to the longitudinal direction of the casing 5a, and the first attachment claws 11a are provided in the surrounding mounting frame. The appliance mounting hole 2b at the portion of the window hole 2a of 2 is fitted. The container body 5 is provided with a pair of first mounting claws 11a. Similarly, as shown in FIG. 1, FIG. 2, and FIG. 7, the container body 5 has the second attachment claws 11b projecting from the second side surface perpendicular to the longitudinal direction of the casing 5a, and the second attachment claws 11b can be disposed on the second attachment claws 11b. The instrument mounting hole 2b surrounding the window hole 2a of the mounting frame 2 is fitted. The switch 10 can be attached to the mounting frame 2 by fitting the first mounting claw 11a and the second mounting claw 11b of the container body 5 to the fixture mounting hole 2b of the mounting frame 2. As shown in FIG. 10, the casing 5a includes a pair of cutting grooves 11c on the first side wall of the casing 5a. The casing 5a is provided with a flexible sheet 11d having flexibility in the thickness direction of the side wall between the pair of cutting grooves 11c. The casing 5a is elastically deformed toward the inside of the casing 5a by bending the flexure piece 11d toward the inside of the casing 5a.

In the case where the switch body 1 is attached to the mounting frame 2, the switch 10 first inserts the second mounting claw 11b of the casing 5a into the fixture mounting hole 2b of the mounting frame 2. Next, the switch 10 deforms the first attachment claw 11a on the opposite side to the second attachment claw 11b, and when the container body 5 is inserted into the window 2a of the attachment frame 2, the switch body 1 can be attached to the attachment frame 2. When the switch 10 pushes the flexure piece 11d to the inside of the casing 5a, the first attachment claw 11a is pulled out from the appliance attachment hole 2b. In the state in which the first attachment claw 11a is pulled out from the appliance attachment hole 2b, the switch 10 can be removed from the attachment frame 2 by the second attachment claw 11b being pulled out from the fixture attachment hole 2b. The switch body 1 is provided to protrude from the flexure piece 11d by the pressing protrusion 11e into which the flexible piece 11d can be simply pushed.

The mounting frame 2 is provided with a long hole 2c for inserting a cartridge screw for inserting an insertion case (not shown) such as an embedded wall surface. The mounting frame 2 is provided with a screw through hole 2d for inserting a screw directly attached to a construction surface such as a wall surface. The mounting frame 2 is provided with a clip locking hole 2e, and the clip (not shown) used for mounting on a wall panel or the like is locked. The mounting frame 2 is provided with a mounting screw hole 2f, and the mounting screw 123 for mounting the cover frame 120 is screwed and fixed.

As shown in FIGS. 1 and 2, the main body 5b partitions the internal space of the main body 5b into three chambers along the longitudinal direction of the main body 5b. In the main body 5b, the first terminal storage chamber 13 and the second terminal storage chamber 14 are formed by dividing the two sides in the longitudinal direction of the main body 5b. The first terminal housing chamber 13 houses a terminal portion having the first terminal plate 15, the two first lock springs 16, and the first release button 17. The second terminal housing chamber 14 houses a terminal portion including the second terminal plate 18, the third terminal plate 22, the two second lock springs 19, and the second release button 21. The main body 5b has a central portion in the longitudinal direction of the main body 5b that constitutes the central storage chamber 23 in which the switch mechanism portion 40 is housed. As shown in FIG. 2 and FIG. 9, the main body 5b is provided on the bottom surface side so that the first electric wire insertion opening 13a penetrates the first terminal housing chamber 13 of the main body 5b. The main body 5b is provided so that the first release hole 13b passes through the vicinity of the pair of first electric wire insertion openings 13a. In the same manner, the main body 5b is provided on the bottom surface side such that the pair of second electric wire insertion openings 14a penetrate the second terminal housing chamber 14 of the main body 5b. The main body 5b is provided so that the second release hole 14b passes through the vicinity of the pair of second electric wire insertion ports 14a. In the following, in the pair of second electric wire insertion ports 14a, one of them is referred to as a third electric wire insertion opening 14a1, and the other is referred to as a fourth electric wire insertion opening 14a2. Hereinafter, one of the two second lock springs 19 will be described as one of the second lock springs 19, and the other one will be referred to as a third lock spring 26.

The first lock spring 16 has a flat first central piece 16c, a first locking piece 16a provided at the first end of the first center piece 16c, and a second end portion provided at the second end of the first center piece 16c. 1 contact piece 16b. The first locking piece 16a is bent in a J shape, and is inclined so as to widen the distance from the first center piece 16c toward the front end from the portion connected to the first center piece 16c. The first contact piece 16b is bent in an S shape and has elasticity in the thickness direction of the first center piece 16c. Similarly, the second lock spring 19 has a flat second center piece 19c, a second lock piece 19a provided at the third end of the second center piece 19c, and a fourth end provided on the second center piece 19c. The second contact piece 19b of the part. The second locking piece 19a is formed in a J-shape in a curved shape, and is inclined so as to widen the distance from the second central piece 19c toward the distal end from the portion connected to the second central piece 19c. The second contact piece 19b is formed in an S-shape by bending, and has elasticity in the thickness direction of the second center piece 19c. The first lock spring 16 and the second lock spring 19 can be formed by bending a metal material having elasticity and electrical conductivity. The first lock spring 16 can be formed of a metal material such as copper or a copper alloy as a material thereof. The second lock spring 19 can be formed of a metal material such as copper or a copper alloy as a material thereof.

The first terminal plate 15 includes a first connecting piece 15a, a first crimping piece 15b that is coupled to the first connecting piece 15a, and a first contact piece 15c that is coupled to the first connecting piece 15a and the first crimping piece. 15b is opposite. The first lock spring 16 is placed in contact with the first contact piece 15c of the first terminal plate 15 in a state in which the first lock piece 16 is in contact with each other, and the first lock piece 16a, the first contact piece 16b, and the first crimp piece are disposed. 15b is opposite. The switch main body 1 is configured such that the electric wires that are introduced into the first electric wire insertion opening 13a can be inserted into the first locking piece 16a and the first contact piece 16b of the first lock spring 16, and the first crimping piece of the first terminal plate 15 Between 15b. In the switch body 1, the positional relationship between the first terminal plate 15, the first lock spring 16, and the first electric wire insertion opening 13a may be appropriately set.

Therefore, when the electric wire is inserted into the first electric wire insertion opening 13a of the container main body 5, the switch main body 1 is between the first locking piece 16a and the first contact piece 16b and the first crimping piece 15b of the first terminal plate 15. Crimp the wires and clamp them. In the switch body 1, the front end of the first locking piece 16a is fitted into the core wire of the electric wire to prevent falling off. The switch body 1 is electrically connected to the first terminal plate 15 by the core wire of the electric wire by the first locking piece 16a and the first contact piece 16b. The switch body 1 can be connected to the electric wire without using a terminal screw by the spring force of the first lock spring 16. In other words, the first lock spring 16 and the first terminal plate 15 are configured to be electrically connected to the electric wires and mechanically connected to each other by inserting a core wire of the electric wire from which the insulation coating is removed.

The second terminal plate 18 includes a second connecting piece 18a, a second crimping piece 18b that is coupled to the second connecting piece 18a, and a second contact piece 18c that is coupled to the second connecting piece 18a and is secondarily crimped. The sheets 18b are opposed to each other. The second terminal plate 18 can be formed by bending a metal material having elasticity and electrical conductivity. The second terminal plate 18 can be formed of a metal material such as copper or a copper alloy as a material thereof.

One of the two second lock springs 19 is disposed such that the second center piece 19c is in contact with the second contact piece 18c of the second terminal plate 18, and the second lock piece 19a and the second contact piece are brought into contact with each other. 19b is opposed to the second crimping piece 18b. The switch body 1 guides the electric wire into the third electric wire insertion port 14a1. The switch body 1 is configured such that the second terminal can be inserted between the second lock piece 19a and the second contact piece 19b of the second lock spring 19 and the second pressure contact piece 18b of the second terminal plate 18, and the second terminal can be set. The positional relationship between the plate 18 and the second lock spring 19 and the third electric wire insertion opening 14a1.

When the electric wire is inserted into the third electric wire insertion opening 14a1, the switch main body 1 presses the electric wire between the second locking piece 19a and the second contact piece 19b and the second crimping piece 18b of the second terminal plate 18 to Clamping. The switch body 1 constitutes a quick-connect terminal that electrically and mechanically connects the core wire of the electric wire and the second terminal plate 18 by the second locking piece 19a and the second contact piece 19b.

The third terminal plate 22 includes a third connecting piece 22a, a third crimping piece 22b connected by the third connecting piece 22a, and a third contact piece 22c connected to the third connecting piece 22a. 3 The crimping pieces 22b are opposed to each other. The third terminal plate 22 can be formed by bending a metal material having elasticity and electrical conductivity. The third terminal plate 22 can be formed of a metal material such as copper or a copper alloy as a material thereof.

The third lock spring 26 is disposed such that the third center piece 26c is in contact with the third contact piece 22c of the third terminal plate 22, and the third lock piece 26a and the third contact piece 26b are crimped to the third. The sheets 22b are opposed to each other. The switch body 1 guides the electric wire into the fourth electric wire insertion port 14a2. The switch body 1 is configured such that the third terminal plate 22 and the third locking piece 26a and the third contact piece 26b of the third locking spring 26 are interposed between the third locking piece 26b and the third pressure piece 22b of the third terminal plate 22, and The positional relationship between the third lock spring 26 and the fourth electric wire insertion opening 14a2.

When the electric wire is inserted into the fourth electric wire insertion opening 14a2, the switch main body 1 presses the electric wire between the third locking piece 26a and the third contact piece 26b and the third crimping piece 22b of the third terminal plate 22, thereby Clamping. The switch body 1 constitutes a quick-connect terminal that electrically and mechanically connects the core wire of the electric wire and the third terminal plate 22 by the third locking piece 26a and the third contact piece 26b.

The first release button 17 is housed in the first terminal housing chamber 13 of the main body 5b so that the rear portion of the first release button 17 is adjacent to the first release hole 13b. The first release button 17 allows a part of the first release button 17 to come into contact with the first locking piece 16a of the first lock spring 16. The switch main body 1 is configured such that when the first release button 17 is pressed and operated by the first release hole 13b, the first crimping piece 15b of the first terminal plate 15 can be separated from the first locking piece 16a, and the electric wire can be taken out. The first release button 17 is disposed so as to straddle each of the pair of first lock springs 16 corresponding to the first terminal plate 15 . The first release button 17 is configured to simultaneously press the first lock pieces 16a of the two first lock springs 16 and 16 corresponding to the first terminal plate 15.

In the same manner, the second release button 21 is housed in the second terminal housing chamber 14 of the main body 5b so that the rear portion of the second release button 21 is adjacent to the second release hole 14b. The second release button 21 allows a part of the second release button 21 to be in contact with the second lock piece 19a of the second lock spring 19 and the third lock piece 26a of the third lock spring 26. The second release button 21 is configured such that when the second release button 21 is pressed and operated by the second release hole 14b, the second crimping piece 18b of the second terminal plate 18 can be separated from the second locking piece 19a, and the wire can be separated. It is taken out from the third electric wire insertion port 14a1. In addition, the second release button 21 is configured such that when the second release button 21 is pressed and operated by the second release hole 14b, the third pressure contact piece 22b of the third terminal plate 22 can be separated from the third lock piece 26a. The electric wire is taken out from the fourth electric wire insertion opening 14a2. The second release button 21 is disposed so as to straddle the second lock springs 19 and the third lock springs 26 corresponding to the second terminal plate 18 and the third terminal plate 22, respectively. The second release button 21 is configured such that the second locking piece 19a of the second lock spring 19 corresponding to the second terminal plate 18 and the third locking piece of the third lock spring 26 corresponding to the third terminal plate 22 are provided. 26a is pressed at the same time. The first release button 17 and the second release button 21 are formed of, for example, a thermosetting resin such as urea resin. The first release button 17 and the second release button 21 can be pressed by the front end portion of the tool such as a slotted screwdriver.

In the switch main body 1 , the second connecting piece 18 a of the second terminal plate 18 is housed in the second terminal housing chamber 14 , and the second contact holding piece 18 d formed integrally with the second terminal plate 18 is inserted into the central storage chamber 23 . In the second terminal plate 18, a fixed contact 25 is provided at the end portion of the second contact holding piece 18d in the center housing chamber 23. Hereinafter, the fixed contact 25 provided at the end of the second contact holding piece 18d is also referred to as a first fixed contact 25a. In the switch main body 1 , the third connection piece 22 a of the third terminal plate 22 is housed in the second terminal storage chamber 14 , and the third contact holding piece 22 d formed integrally with the third terminal plate 22 is inserted into the central storage chamber 23 . The third terminal plate 22 is provided with a fixed contact 25 at the end of the third contact holding piece 22d in the center housing chamber 23. Hereinafter, the fixed contact 25 provided at the end of the third contact holding piece 22d is also referred to as a second fixed contact 25b.

The first terminal plate 15 is provided with a support piece 15e, and the end portion is disposed along the inner circumferential surface of the rear wall of the central storage chamber 23 before the contact piece 15d. The first terminal plate 15 is formed with a contact piece 15d so as to be located closer to the first pressure contact piece 15b than the first contact piece 15c. In the first terminal plate 15, the contact piece 15d is closer to the first pressure contact piece 15b than the first contact piece 15c, and the contact piece 15d and the second contact holding piece disposed in the center storage chamber 23 are held. The insulation distance of 18d is large. The first terminal plate 15 abuts against the support piece 15e with the rear end edge 24b of the opening and closing member 24. The opening and closing member 24 protrudes from the projections 28 on both side edges of the opening and closing member 24. As shown in FIG. 2, the opening and closing member 24 is inserted into the V-shaped position restricting recessed portion 27 which is provided on the front end side of the center housing chamber 23 and is wide. The opening and closing member 24 is rotatable within the range of the position restricting recess 27 with the trailing edge as a fulcrum in a state in which the rear end edge 24b is in contact with the support piece 15e. The opening and closing member 24 is disposed to face the second contact holding piece 18d. The opening and closing member 24 is provided with a movable contact 29 at a position opposed to the first fixed contact 25a provided on the second contact holding piece 18d. Hereinafter, the movable contact 29 that faces the first fixed contact 25a is also referred to as a first movable contact 29a. The first movable contact 29a and the first fixed contact 25a constitute a contact 100. In the switch 10, the first movable contact 29a is brought into contact with and separated from the first fixed contact 25a by rotating the opening and closing member 24, and the state in which the first terminal plate 15 and the second terminal plate 18 are electrically closed can be selected. Or open state. The opening and closing member 24 is disposed to face the third contact holding piece 22d. The opening and closing member 24 is provided with a movable contact 29 at a position opposed to the second fixed contact 25b provided on the third contact holding piece 22d. Hereinafter, the movable contact 29, which is opposed to the second fixed contact 25b, is also referred to as a second movable contact 29b. The second movable contact 29b and the second fixed contact 25b constitute a contact 100. In the switch 10, the second movable contact 29b is brought into contact with and separated from the second fixed contact 25b by rotating the opening and closing member 24, and the state in which the first terminal plate 15 and the third terminal plate 22 are electrically closed can be selected. Or open state.

In the switch 10, the contact point 100 and the reversing spring 30 used for the rotation of the opening and closing member 24 constitute the switch mechanism portion 40 together with the inversion handle 31. The reversing spring 30 constitutes a compression coil spring. The reversing spring 30 is inserted into the rear end portion of the reversing spring 30 to insert a spring seat piece 24a which is provided to protrude from the front edge of the opening and closing member 24. The reverse spring 30 is used to house the front end portion of the reversing spring 30 in the tubular portion 31a provided on the surface of the reverse shank 31. The reverse handle 31 exposes the front end portion of the reverse handle 31 to the front surface side of the casing 5a by the first through hole 52 provided through the bottom wall of the recess 51 provided on the front surface of the casing 5a.

The reverse shank 31 protrudes from the apex projections 31b of the triangular prism shape in which the front end portion of the reverse shank 31 is gradually narrowed toward the front end portion of the intermediate portion of the reverse shank 31. The shank projection 31b is rotatably supported by the first bearing portion 50 formed on both side edges of the first through hole 52 of the casing 5a and opened rearward so as to be arbitrarily swingable to the casing 5a. The way to install. In the switch 10, the front end portion of the reverse lever 31 is inserted into the first through hole 52 of the casing 5a from the rear, and the fulcrum projection 31b is inserted into the first bearing portion 50 of the casing 5a, whereby the casing 5a can be reversed. The handle 31 can swing freely. The switch 10 is coupled to the opening and closing member 24 by the reverse spring 30. In the switch 10, the reverse spring 30 is compressed most in the middle of the swing range by the swing of the reverse handle 31. The switch 10 reverses the direction of the spring force acting on the opening and closing member 24 by the reversing spring 30 before and after the position where the reversing spring 30 is compressed most, and the opening and closing member 24 is moved by the spring force of the reversing spring 30.

The reverse lever 31 has a pair of engaging projections 34 that are engaged with the slide cam 33 on both side portions of the reverse lever 31 that is exposed on the front surface side of the casing 5a through the first through hole 52. The switch 10 is configured to slide the slide cam 33 along the back surface of the button key 32 in response to the position of the reverse lever 31 when the push button lever 32 provided in the casing 5a is pressed.

The button key lever 32 is provided with a guide protrusion 36 that protrudes toward the rear end portions of the two outer side surfaces perpendicular to the longitudinal direction. The switch 10 inserts the guide protrusion 36 of the button key lever 32 into the guide groove 35 formed in the front-rear direction (the upper-lower direction of FIG. 1) behind the inner peripheral surface of the concave portion 51 of the casing 5a, thereby allowing the guide groove 35 to be inserted. Move forward and backward in an arbitrary direction and prevent it from falling forward. The button key lever 32 has a protrusion 32d protruding from the surface of the button key lever 32. The button key lever 32 inserts the projection 32d into the hole 37d which is perforated in the flat piece 37b of the return spring 37 constituted by the plate spring, and mounts the return spring 37 to the rear surface of the button key 32. The switch 10 elastically contacts the bottom surface of the recessed portion 51 by the front end of the return spring piece 37a of the return spring 37, thereby biasing the push button lever 32 toward the front.

The slide cam 33 can be formed into an O-shape by, for example, a thermoplastic resin such as polyacetal which is elastic. The slide cam 33 protrudes from the side edge portion of the slide cam 33 by the engagement cam body 38 corresponding to the engagement projection 34 of the reverse lever 31. The slide spring cam 33 is provided on the outer side of the slide cam 33, and a metal spring piece 33a that applies a force in a direction opposite to the slip direction of the slide cam 33 to the slide cam 33 abuts on the outer side of the slide cam 33. As shown in FIGS. 3 and 4, the spring piece 33a includes a base portion 33a1, an upright installation portion 33a2, and a pair of extension portions 33a3. The base portion 33a1 has a C-shape in a plan view. The upright installation portion 33a2 is provided to be erected from the front end of the base portion 33a1 and the opposite base end portions. The pair of projecting portions 33a3 are respectively provided in the respective upright installation portions 33a2 and project in directions in which they approach each other. The spring piece 33a abuts against the pair of projecting portions 33a3 at the side end portion of the slide cam 33 away from the base portion 33a1 of the spring piece 33a. The spring piece 33a has a semicircular tubular shape at the front end of each of the projecting portions 33a3. The spring piece 33a is configured such that the front end portion of each of the projecting portions 33a3 can maintain the side end portion of the slide cam 33 at the front end portion of each of the projecting portions 33a3 by causing the front end portion of each of the projecting portions 33a3 to have a semicircular tubular shape. The spring piece 33a penetrates the first insertion hole 33b provided from the button key 32 through the first through hole 33ba of the base portion 33a1, and melts a part of the first cassette 32b to fix it to the button key 32. The spring piece 33a is provided on the base portion 33a1 through the second through hole 33bb that can pass through the second click 32c protruding from the button key 32. The spring piece 33a is formed by bending a metal material. As shown in FIG. 5, the switch 10 sandwiches the slide cam 33 and the spring piece 33a with a push button lever 32 and a return spring 37. The return spring 37 is partially melted by the second latch 32c of the push button lever 32 that penetrates the third through hole 37bb of the return spring 37, and is fixed to the push button lever 32 via the metal spring piece 33a. .

In the switch 10, the slide cam 33 is formed separately from the spring piece 33a. Since the slide cam 33 is formed separately from the spring piece 33a, the switch 10 has a lower rigidity than the slide cam 33, and can be designed to suppress the strain strain of the spring piece 33a in a small range. Since the slide cam 33 is formed separately from the spring piece 33a, the switch 10 can be designed to suppress the strain strain of the spring piece 33a in a small range separately from the slide cam 33. The switch 10 is configured such that the deformation strain of the spring piece 33a is suppressed to a small range separately from the slide cam 33, and the spring piece 33a and the slide cam 33 are integrally formed, and the spring piece can be extended. The service life of 33a. The switch 10 can reduce the strain generated by the deformation of the spring piece 33a by suppressing the deformation strain of the spring piece 33a from being separated from the slide cam 33 in a small range. The switch 10 suppresses the deformation strain of the spring piece 33a in a small range from the slide cam 33, and suppresses the sound generated by the speed of the reaction spring piece 33a.

That is, the switch 10 is provided with the metal spring piece 33a spaced apart from the slide cam 33 on the outer side of the slide cam 33, so that the spring piece 33a can be made low stress. In the switch 10, since the spring piece 33a is provided separately from the slide cam 33 on the outer side of the slide cam 33, it can be designed to operate the piano key lever 43 with a low pressing pressure. Further, since the switch 10 is provided separately from the slide cam 33 on the outer side of the slide cam 33, the switch 10 is low in deformation and low in speed, and the occurrence of abnormal sound can be reduced, and the service life can be increased.

The switch 10 is provided separately from the slide cam 33 on the outer side of the slide cam 33, and the spring piece 33a is formed by bending a metal material. The switch 10 has a structure in which the spring piece 33a and the slide cam 33 are integrally formed on the inner side of the slide cam 33, and the structure of the slide cam 33 can be simplified.

The switch 10 is formed by separating the spring piece 33a from the return spring 37. Therefore, the spring piece 33a is not affected by the deformation of the return spring 37 with the load applied to the button key 32 by the return spring 37, and the slide cam 33 can be biased. Since the switch 10 is configured to separate the spring piece 33a from the return spring 37, the spring piece 33a is configured to be integrated with the spring piece 33a and the return spring 37, and is not affected by the deformation of the shape of the return spring 37. The limit of the length of the spring piece 33a is lowered. Since the switch 10 is formed separately from the return spring 37, the structure in which the spring piece 33a and the return spring 37 are integrated is formed, and the low deformation of the spring piece 33a is simplified.

The switch 10 is not limited to a configuration in which the button key 32 and the spring piece 33a are separately formed. Although not shown, the switch 10 may have a structure in which the button key 32 and the spring piece 33a are integrally formed. The switch 10 is integrally formed by the button key 32 and the spring piece 33a, so that the number of parts constituting the switch 10 can be reduced.

The switch 10 is provided with a spring piece 33a on the outer side of the slide cam 33, so that the spring length of the extension piece 33a3 of the spring piece 33a is reduced as compared with the configuration in which the spring piece is provided inside the slide cam 33. The spring piece 33a can suppress the increase in the service life of the slide cam 33 by suppressing the maximum stress accompanying the stroke of the slide cam 33, and suppress the generation of abnormal sound. The switch 10 separates the spring piece 33a from the slide cam 33 on the outer side of the slide cam 33. Therefore, the slide cam 33 can be downsized compared to the structure in which the spring piece is provided inside the slide cam 33. Therefore, the switch 10 can reduce the overall size of the slide cam 33 and reduce the operation stroke of the piano key lever 43. Further, when the entire sliding cam 33 is downsized, the slide cam 33 becomes lighter, and the sliding operation of the slide cam 33 tends to be smooth. In the switch 10, as the entire size of the slide cam 33 is reduced, the material cost of the slide cam 33 is lowered, and the cost can be reduced. With the miniaturization of the entire slide cam 33, the switch 10 can reduce the size of the reverse lever 31 and reduce the operation stroke of the piano key lever 43.

In order to rotatably attach the case 5a to the piano key lever 43, a pair of shaft portions 192 projecting obliquely forward is integrally provided on the surface side of the casing 5a. The shaft portion 192 is formed in a cylindrical shape along the short side direction of the casing 5a. As shown in FIG. 12A and FIG. 12B, the piano key lever 43 is provided at the one end portion of the rear surface of the piano key lever 43, and the bearing spring 191b formed of a metal plate spring is provided in the insertion hole 191a. The second bearing portion 191. The piano key lever 43 has a locking hole 190 on one side of the inner circumferential surface of the fitting hole 191a. The piano key lever 43 locks the fall prevention claw 191c of the bearing spring 191b accommodated in the insertion hole 191a with the locking hole 190, and holds the bearing spring body 191b. The bearing spring body 191b is formed so as to protrude from the front end into the fitting hole 191a, and the shaft portion 192 can be held by the protruding portion 191d and the fitting hole 191a.

The piano key lever 43 is provided with a protruding portion 191d of the bearing spring 191b in the vicinity of the opening of the fitting hole 191a, so that the opening width of the fitting hole 191a is narrower than the inside.

The switch 10 is configured to compete with the spring force of the bearing spring 191b, and is elastically fitted into the shaft portion 192 of the casing 5a in the fitting hole 191a of the piano key lever 43. The switch 10 is configured such that the second bearing portion 191 is attached so as to be rotatable around the shaft portion of the shaft portion 192, and the piano key lever 43 is less likely to be detached from the casing 5a. The switch 10 is rotatably attached to the shaft portion 192 by arbitrarily rotating the second bearing portion 191, and the piano key lever 43 is rotatably mounted. As shown in FIG. 11, the switch 10 is provided to the piano key lever 43 at the other end portion of the piano key lever 43 so as to prevent the fall-off prevention piece 43a protruding toward the rear. The piano key lever 43 is inserted into the air gap 12 by the insertion hole 54 formed in the front wall of the casing 5a, and the locking claw 43b provided at the front end portion of the detachment preventing piece 43a is locked in the insertion hole. The edge of 54 limits the range of rotation of the piano key 43. As shown in Fig. 7, the casing 5a is provided with three insertion holes 54 side by side. The first terminal plate 15 is provided with a guide piece 15f that extends forward from the first crimping piece 15b and approaches the insertion hole 54. The guide piece 15f prevents the electric wire connected to the first terminal plate 15 from protruding toward the insertion hole 54 side and interferes with the anti-dropping piece 43a.

The switch 10 attaches the piano key lever 43 to the switch main body 1. When the other end portion of the piano key lever 43 is pressed and operated, the shaft portion 192 is used as an axis to rotate the piano key lever 43. The piano key lever 43 is preferably provided with a pair of operation ribs protruding from the rear surface of the piano key lever 43. When the piano key lever 43 is pressed and operated, the piano key lever 43 pushes the button key lever 32 provided on the switch body 1 into the container body 5 side by the operation rib.

Hereinafter, the operation of the switch 10 will be briefly described using FIGS. 13 and 14. The switch 10 is configured as a three-way switch, but in FIGS. 13 and 14, the second movable contact 29b and the second fixed contact 25b are separated from each other by contact.

As shown in FIG. 13, the switch 10 is in a state in which the contact 100 between the first terminal plate 15 and the third terminal plate 22 is closed in a state where the movable contact 29 is brought into contact with the fixed contact 25. In the switch 10, the reverse handle 31 is turned to the right side of the paper of Fig. 13. The switch 10 is such that the slide cam 33 is located at the center of the movement range by the spring piece 33a. When the switch 10 is applied to the piano key lever 43 by the pressing force, the button key lever 32 is urged against the return spring 37 to be pushed into the container body 5. In the switch 10, the slide cam 33 moves along with the button key 32 toward the lower side of the paper of Fig. 13. The switch 10 abuts the engagement cam body 38 of the slide cam 33 on the left side of the paper surface of Fig. 13 with the engagement projection 34 of the reverse handle 31 on the left side of the paper surface of Fig. 13, and the left end portion of the reverse handle 31 is directed to Fig. 13. Press below the paper. The switch 10 presses the engaging cam body 38 of the slide cam 33 toward the left end portion of the reverse lever 31, and the reverse lever 31 is rotated to the left centering on the front end of the fulcrum projection 31b.

In the switch 10, the engagement cam body 38 on the left side is located to the left of the engagement protrusion 34 on the left side, and the slide cam 33 slides to the left side in Fig. 14 in accordance with the rotation of the reverse lever 31. As shown in Fig. 14, the switch 10 rotates the reverse lever 31 counterclockwise, and the reverse spring 30 is reversed, and the opening and closing member 24 is also reversed. In the switch 10, the movable contact 29 and the fixed contact 25 are separated from each other by the reverse rotation of the opening and closing unit 24, and the contact 100 between the first terminal plate 15 and the third terminal plate 22 is opened.

When the switch 10 releases the pressing force acting on the piano key lever 43, the button key 32 is pushed back by the spring force of the return spring 37. The switch 10 causes the piano key lever 43 abutting against the button key 32 to return to the original position. The switch 10 slides the slide cam 33 to return to the center position by the spring force of the spring piece 33a.

Although the switch 10 is not shown, when the contact 100 is opened, if the pressing force acts on the piano key lever 43, the reverse lever 31 can be rotated. When the contact 100 is in the open state, the switch 10 on the right side of the reverse lever 31 abuts against the engaging cam body 38 on the right side of the slide cam 33, and the reverse lever 31 rotates clockwise. The switch 10 is brought into contact with the fixed contact 25 by the reversing spring 30 in association with the rotation of the reverse lever 31. That is, the switch 10 can open and close the contact 100 in each pressing operation of the piano key lever 43. The switch 10 is configured by the slide cam 33, the spring piece 33a, the engaging projection 34 of the reverse lever 31, and the return spring 37, so that the reverse lever 31 alternately moves in the opposite direction for each pressing operation of the button key 32. The inverting mechanism portion 41 that swings.

In the switch 10, as shown in Fig. 2, the guide projections 36 in the inner side surface of the button key lever 32 project the columnar restricting ribs 39 at their adjacent portions. The switch 10, with the pressing operation of the button key lever 32, deflects the return spring piece 37a of the return spring 37 to the outside. When the return spring piece 37a is flexed and opened to the outside, the switch 10 abuts against the restricting rib 39 at the front end of each of the return spring pieces 37a. The switch 10 is configured such that when the front end of each of the return spring pieces 37a abuts against the regulating rib 39, the displacement of the return spring 37 in the direction perpendicular to the pressing operation direction of the button key 32 is suppressed.

On the other hand, as shown in FIG. 11, the switch 10 is provided with a piano key lever 43 having a size in which the first opening window 120a of the cover frame 120 and the second opening window 130a of the decorative cover 130 are covered by one. The piano key lever 43 is not limited to the size of one piano key lever 43, and covers the first opening window 120a of the cover frame 120 and the second opening window 130a of the decorative cover 130, and can fit the container body 5 of the switch 10. Make it the right size. The switch 10 can make the operability of the piano key lever 43 easier to perform than pressing the operation button key lever 32 if the area of the operation surface of the piano key lever 43 is made larger than that of the button key lever 32.

In the switch 10, the second bearing portion 191 provided at one end portion of the rear surface of the piano key lever 43 is provided in two so as to correspond to one of the switch body 1 and the shaft portion 192. The piano key lever 43 is attached to the two second bearing portions 191 of the piano key lever 43 by inserting the two shaft portions 192 of the switch body 1. The piano key lever 43 has two anti-falling pieces 43a projecting from the other end portion of the rear surface of the piano key lever 43. The piano key lever 43 is inserted into each of the insertion holes 54 of the switch body 1. The piano key lever 43, preferably at the other end of the surface of the piano key lever 43, is provided with a pressing position indicating projection 114. The piano key lever 43, preferably on the surface of the piano key lever 43, forms a stripe-shaped decorative line 115 composed of a plurality of parallel straight lines.

The cover frame 120 can be attached to the front surface side of the mounting frame 2 by a mounting screw 123. As shown in FIG. 11, the cover frame 120 has a rectangular frame shape, and the mounting screw through holes 121 through which the mounting screws 123 are inserted are provided in the upper and lower sheets, respectively. As the material of the cover frame 120, for example, a synthetic resin such as ABS resin can be used. The cover frame 120 is provided with a locking hole 122 for inserting a locking piece (not shown) of the locking decorative cover 130 on the left and right sides of the cover frame 120. The cover frame 120 has a cover holding hole 125 for attaching a simple refractory cover made of metal (not shown) to the four sides of the cover frame 120. The cover frame 120 includes a step portion 124 around the circumference of the cover frame 120. The decorative cover 130 combined with the cover frame 120 is formed in a rectangular frame shape similarly to the cover frame 120. As the material of the decorative cover 130, for example, a synthetic resin such as ABS resin can be used. The decorative cover 130 protrudes from the back surface of the decorative cover 130 for engaging with the cover frame 120.

The switch 10 is attached to the mounting frame 2 on which the switch body 1 is mounted by mounting screws 123. The switch 10 combines the decorative cover 130 with the cover frame 120. The switch 10 mounts the piano key lever 43 to the switch body 1. The switch 10 allows a part of the piano key lever 43 to pass through the first opening window 120a of the cover frame 120 and the second opening window 130a of the decorative cover 130 to protrude toward the front of the cover. The switch 10 is configured to press the piano key lever 43 in a state where a part of the piano key lever 43 protrudes toward the front of the cover. The decorative cover 130 is fitted to the cover frame 120 only by the locking piece, and the tool having the tip end portion is pointed and inserted into the removal groove 126 provided at the lower end of the cover frame 120, and the cover plate can be self-covered. 120 removes the decorative cover 130. A pointed-shaped tool at the front end that can be used with a variety of tools, such as a slotted screwdriver. Therefore, in the state in which the decorative cover 130 is attached, the switch 10 can be exposed without being exposed on the front side, and can have a good appearance. The switch 10 can relatively easily remove the decorative cover 130 during maintenance.

1‧‧‧Switch body
10‧‧‧ switch
100‧‧‧Contacts
11a‧‧‧1st mounting claw
11b‧‧‧2nd mounting claw
11c‧‧‧cut into the ditch
11d‧‧‧Flex film
11e‧‧‧Pushing the protrusion
114‧‧‧ Pressing the position indication protrusion
115‧‧‧Decoration line
12‧‧‧ gap
120‧‧‧ Cover frame
120a‧‧‧1st opening window
121‧‧‧Mounting screw through hole
122‧‧‧ card hole
123‧‧‧Mounting screws
124‧‧‧Departure
125‧‧‧ cover retaining hole
126‧‧‧Removing the trench
13‧‧‧1st terminal storage room
13a‧‧‧1st wire insertion port
13b‧‧‧1st release hole
130‧‧‧Decorative cover
130a‧‧‧2nd opening window
14‧‧‧2nd terminal storage room
14a‧‧‧2nd wire insertion port
14a1‧‧‧3rd wire insertion port
14a2‧‧‧4th wire insertion port
14b‧‧‧2nd release hole
15‧‧‧1st terminal board
15a‧‧‧1st piece
15b‧‧‧1st crimping piece
15c‧‧‧1st abutment
15d‧‧‧Contacts
15e‧‧‧Support tablets
15f‧‧‧Leading film
16‧‧‧1st lock spring
16a‧‧‧1st locking piece
16b‧‧‧1st contact piece
16c‧‧‧1st central film
17‧‧‧1st release button
18‧‧‧2nd terminal board
18a‧‧‧2nd piece
18b‧‧‧2nd crimping piece
18c‧‧‧2nd abutment
18d‧‧‧2nd contact holding piece
19‧‧‧2nd lock spring
19a‧‧‧2nd locking piece
19b‧‧‧2nd contact piece
19c‧‧‧2nd Central Film
190‧‧‧ card hole
191‧‧‧2nd bearing
191a‧‧‧Embedded hole
191b‧‧‧Springs for bearings
191c‧‧‧Anti-falling claws
191d‧‧‧Protruding
192‧‧‧Axis
2‧‧‧Installation box
2a‧‧‧Window
2b‧‧‧ appliance mounting holes
2c‧‧‧ long hole
2d‧‧‧screw through hole
2e‧‧‧ clip button hole
2f‧‧‧Mounting screw holes
21‧‧‧2nd release button
22‧‧‧3rd terminal board
22a‧‧‧3rd piece
22b‧‧‧3rd crimping piece
22c‧‧‧3rd abutment
22d‧‧‧3rd contact holding piece
23‧‧‧Central storage room
24‧‧‧Opening
24a‧‧‧Spring seat
24b‧‧‧back edge
25‧‧‧Fixed joints
25a‧‧‧1st fixed joint
25b‧‧‧2nd fixed joint
26‧‧‧3rd lock spring
26a‧‧‧3rd locking piece
26b‧‧‧3rd contact piece
26c‧‧‧3rd Central Film
27‧‧‧ Position Limiting Concave
28‧‧‧dun
29‧‧‧ movable contact
29a‧‧‧1st movable contact
29b‧‧‧2nd movable contact
3‧‧‧Assembly
30‧‧‧Reverse spring
301‧‧‧ container body
302‧‧‧ cover
303‧‧‧Terminal components
304‧‧‧release button
305‧‧‧Fixed joint components
305a‧‧‧Fixed joints
306‧‧‧ movable contact support terminal
306a‧‧‧ movable contact support spring
307‧‧‧ movable contact members
307a‧‧‧ movable contact
31‧‧‧Reversing handle
31a‧‧‧Tube
31b‧‧‧ fulcrum protrusion
310‧‧‧Operating body
311‧‧‧Sliding drive body
312‧‧‧ Pushing members
312a‧‧‧Substrate
312b‧‧‧Operating body push spring part
312c‧‧‧Sliding drive body push spring part
313‧‧‧converter
314‧‧‧ button
315‧‧‧Coil spring
32‧‧‧ button lever
32b‧‧‧1st card
32c‧‧‧2nd card
32d‧‧‧ Protrusion
33‧‧‧ sliding cam
33a‧‧ ‧ spring piece
33a1‧‧‧ base
33a2‧‧‧Upright setting department
33a3‧‧‧Outreach
33ba‧‧‧1st through hole
33bb‧‧‧2nd through hole
34‧‧‧Snap protrusion
35‧‧‧Guide ditch
36‧‧‧Guided protrusion
37‧‧‧Return spring
37a‧‧‧Return spring piece
37b‧‧‧flat film
37bb‧‧‧3rd through hole
37d‧‧‧ hole
38‧‧‧Snap cam body
39‧‧‧Restricted ribs
4‧‧‧Assembled holes
40‧‧‧Switching Mechanism Department
41‧‧‧Reversing Mechanism Department
43‧‧‧ piano keys
43a‧‧‧Anti-shedding tablets
43b‧‧‧Card claws
5‧‧‧ container body
5a‧‧‧shell
5b‧‧‧Subject
50‧‧‧1st bearing department
51‧‧‧ recess
52‧‧‧1st through hole
54‧‧‧Insert hole
6‧‧‧Assembling protrusions
6a‧‧‧Sloping surface

Fig. 1 is an exploded perspective view showing the switch of the embodiment. Fig. 2 is a cross-sectional view showing the switch of the embodiment. Fig. 3 is a perspective view showing the main part of the switch of the embodiment. Fig. 4 is a bottom view showing the main part of the switch of the embodiment. Fig. 5 is a bottom view showing another essential part of the switch of the embodiment. Fig. 6 is a perspective view showing the switch of the embodiment. Fig. 7 is a plan view showing the switch of the embodiment. Fig. 8 is a front view showing the switch of the embodiment. Fig. 9 is a bottom view showing the switch of the embodiment. Fig. 10 is a right side view showing the switch of the embodiment. Fig. 11 is an exploded perspective view showing a use mode of the switch of the embodiment. 12A and 12B show main parts of the switch of the embodiment, Fig. 12A is a cross-sectional view before the piano key is attached, and Fig. 12B is a cross-sectional view showing the piano key after mounting. Fig. 13 is an explanatory view for explaining the operation of the switch of the embodiment. Fig. 14 is a view for explaining another operation of the operation of the switch of the embodiment. Figure 15 is an exploded perspective view of a conventional push button switch device.

1‧‧‧Switch body

10‧‧‧ switch

11b‧‧‧2nd mounting claw

114‧‧‧ Pressing the position indication protrusion

115‧‧‧Decoration line

13‧‧‧1st terminal storage room

14‧‧‧2nd terminal storage room

15‧‧‧1st terminal board

15a‧‧‧1st piece

15b‧‧‧1st crimping piece

15c‧‧‧1st abutment

15d‧‧‧Contacts

15e‧‧‧Support tablets

15f‧‧‧Leading film

16‧‧‧1st lock spring 16

16a‧‧‧1st locking piece

16b‧‧‧1st contact piece

16c‧‧‧1st central film

17‧‧‧1st release button

18‧‧‧2nd terminal board

18a‧‧‧2nd piece

18b‧‧‧2nd crimping piece

18c‧‧‧2nd abutment

18d‧‧‧2nd contact holding piece

19‧‧‧2nd lock spring

19a‧‧‧2nd locking piece

19b‧‧‧2nd contact piece

19c‧‧‧2nd Central Film

192‧‧‧Axis

21‧‧‧2nd release button

22‧‧‧3rd terminal board

22a‧‧‧3rd piece

22b‧‧‧3rd crimping piece

22c‧‧‧3rd abutment

22d‧‧‧3rd contact holding piece

23‧‧‧Central storage room

24‧‧‧Opening

24a‧‧‧Spring seat

24b‧‧‧back edge

25‧‧‧Fixed joints

25a‧‧‧1st fixed joint

26‧‧‧3rd lock spring

26a‧‧‧3rd locking piece

26b‧‧‧3rd contact piece

26c‧‧‧3rd Central Film

28‧‧‧dun

29‧‧‧ movable contact

29b‧‧‧2nd movable contact

3‧‧‧Assembly

30‧‧‧Reverse spring

31‧‧‧Reversing handle

31a‧‧‧Tube

31b‧‧‧ fulcrum protrusion

32‧‧‧ button lever

33‧‧‧ sliding cam

33a‧‧ ‧ spring piece

33a1‧‧‧ base

33a2‧‧‧Upright setting department

33a3‧‧‧Outreach

33ba‧‧‧1st through hole

33bb‧‧‧2nd through hole

34‧‧‧Snap protrusion

35‧‧‧Guide ditch

36‧‧‧Guided protrusion

37‧‧‧Return spring

37a‧‧‧Return spring piece

37b‧‧‧flat film

37bb‧‧‧3rd through hole

37d‧‧‧ hole

4‧‧‧Assembled holes

40‧‧‧Switching Mechanism Department

41‧‧‧Reversing Mechanism Department

43‧‧‧ piano keys

5‧‧‧ container body

5a‧‧‧shell

5b‧‧‧Subject

50‧‧‧1st bearing department

51‧‧‧ recess

52‧‧‧1st through hole

6‧‧‧Assembling protrusions

6a‧‧‧Sloping surface

Claims (1)

A switch comprising: a container body having a button button on a front surface thereof for being pressed; a piano key bar disposed in front of the container body in a shape covering a front surface of the container body, the one end portion being rotatable The method is mounted on the container body, and the rear surface thereof abuts against the button key bar; the return spring is received in the container body, and a force opposite to a direction in which the button key is pressed to be operated is applied to the button button The switch mechanism portion is housed in the container body, and the contact opening and closing is performed every pressing operation of the button key lever; the reverse handle is swingable inside the return spring; and the reverse mechanism portion is at the button key lever Each of the pressing operations causes the inverting handle to alternately swing in the opposite direction; and the inverting mechanism portion includes: a sliding cam disposed between the button lever and the inverting handle, along with the Sliding in a direction perpendicular to the direction of the pressing operation, so that the button key can push only one side of the reverse handle; and a metal spring piece is disposed on the outer side of the sliding cam, and the sliding cam is applied a force in a direction opposite to a sliding direction of the sliding cam; the spring piece having: a base portion having a C-shape in a plan view; and an upright setting portion disposed to erect from a side of each base end opposite to a front end of the base portion And a pair of projecting portions respectively disposed in the upright setting portions and extending in a direction approaching each other; the pair of projecting portions abutting on a side end portion of the sliding cam away from the base portion.