JP4114327B2 - Pushbutton switch device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a push button switch device for switching contacts of a contact portion by a piano touch operation.
[0002]
[Prior art]
  Conventionally, when a pushbutton handle is pushed in, the handle is reversed and rotated in accordance with the pushing operation of the pushbutton handle, and a set of contact portions is switched according to the rotation of the handle. There is provided a piano handle type switch device that includes a portion and a piano handle that is attached to an upper portion of the push button switch portion and presses the push button handle by a piano touch operation.
[0003]
  In the conventional switch device, the operation of the contact portion of the push button switch portion is reversed every time the piano handle is pushed.
[0004]
  On the other hand, there is also a demand for a piano handle type push button switch device using a push button switch portion that turns on a contact portion during a push operation of the piano handle and turns off when the push operation is released.
[0005]
[Problems to be solved by the invention]
  In the above-described piano handle type switch device, there is also a demand for a piano handle type push button switch device using a push button switch portion that turns on a contact portion during a push operation of the piano handle and turns off when the push operation is released.
[0006]
  The present invention has been made in view of the above points. The object of the present invention is one-sided cutting. In a piano handle type push-button switch device, the components of an existing inverted one-sided push-button switch unit are used as they are. It is an object of the present invention to provide a push button switch device that can be used, can share parts with a reversing one-sided switch device, and can display a position.
[0007]
[Means for Solving the Problems]
  In order to achieve the above object, according to the first aspect of the present invention, when the push button handle is pushed, the handle is rotated in accordance with the pushing operation of the push button handle, and one set of the handle is rotated according to the turning of the handle. A push button switch portion having an opening / closing mechanism for driving the contact portion and returning the contact portion when the push button handle is released, and a piano attached to the upper portion of the push button switch portion to press the push button handle by a piano touch operation The push button switch portion is provided on the outer side of the body and exposes the operation surface so that the push button handle is attached to the body so as to be movable forward and backward in the exposure direction. The push button switch portion faces the operation surface of the push button handle. The slider is attached to the push button handle so as to be slidable on the surface, and has an elastic piece, and the elastic piece provides a restoring force in the anti-sliding direction. And a handle that rotates in response to sliding of the slide cam caused by a push-in operation of the push button handle, and one end of which is rotatably supported and the other end is connected to the handle via a coil spring. The opening / closing body that rotates in the direction opposite to the rotation direction of the handle according to the rotation of the handle and the fixed contact provided in the opening / closing body and disposed in the container body by the rotation of the opening / closing body And a return spring that urges the push button handle in a direction opposite to the direction of pushing, and the slide cam, the handle, the coil spring, and the opening / closing body constitute the opening / closing mechanism. The movable contact and the fixed contact constitute the contact portion, and the movable contact of the opening / closing body contacts the fixed contact at a position where the handle is not reversed. The position of the fixed contact is set so as to restrict the rotation of the closed body, and after the push operation of the push button handle is released, the handle and the opening / closing body are rotated and returned by the return force of the coil spring, The terminal plate is molded in the block body of the synthetic resin molded product of the display block, which is housed in the pushbutton switch unit and includes a series circuit of a position indicator lamp composed of a neon lamp and a current limiting resistor. Two contacts formed on two conductive plates forming a conductive path are elastically contacted with two contacts protruding from the block main body, and the series circuit is connected in parallel to the contact portion. When the contact portion is off, a load is applied. The position indicator lamp is energized through the lamp to emit light, and the lighting light is emitted to the piano handle side. The piano handle includes a visual recognition unit that allows the light from the position indicator lamp to be visually recognized. The body is composed of a body in which the terminal plate of the contact portion is accommodated, and a cover that is attached and fixed to the body.The cover is provided with a storage recess for storing the block main body, and the storage recess is provided with a protrusion on the wall surface protruding toward the storage recess, and the protrusion is stored in the storage. It is formed so as to be pressed against the block main body stored in the recess, and the block main body is stored in the storage recess in a temporarily held form.It is characterized by.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
  The present invention will be described below with reference to basic embodiments and embodiments.
[0009]
  (Basic form)
  As shown in FIGS. 1 and 2, the double-cut piano handle type push button switch device of this basic form includes a push button switch portion 2 in which contact switching of two contact portions S1, S2 is performed by a pressing operation of the push button handle 1. One end of the push button switch 2 is pivotally supported on the upper surface of the push button switch 2 and the other end of the push button handle 1 is used to push down the upper surface of the push button handle 1. For example, as shown in FIG. The parts S1 and S2 are inserted into the lines of the respective poles of the commercial power supply AC and used as a switch device for turning on / off the power to the load L such as a motor.
[0010]
  The body of the push-button switch unit 2 has a body 4a made of synthetic resin with an opening on the upper surface, and locking protrusions 30 and 30 formed near both ends of both side surfaces of the body 4a. It is composed of a synthetic resin cover 4b which is locked to the body 4a by using the elasticity of the assembly piece 31 in the locking holes 32, 32 of the assembly pieces 31, 31 and is standardized. The size corresponds to the module size of one of the ready-made embedded wiring devices.
[0011]
  The cover 4b is provided with a pair of locking claws 5 and 5 projecting from both end surfaces so that the cover 4b can be detachably attached to the mounting frame 7 used when embedding a ready-made wiring device. A space 6 is formed in the back portion of the locking claw 5 so that the locking claw 5 is elastically bent backward. Accordingly, by locking the latching claws 5 and 5 to the mounting frame 7 for a ready-made wiring device and detachably attaching the push button switch unit 2, a wall surface or the like can be obtained in the same manner as a ready-made embedded wiring device. It can be buried in the construction surface.
[0012]
  On the other hand, the body 4a has two connection terminal storage portions 8 formed in one end portion, two connection terminal storage portions 9 formed in the other end portion, and two central storage portions 15 formed in the center portion. The two connection terminal storage portions 8 at one end each store two terminal plates 11 each having a lock spring 10 incorporated therein, and the two connection terminal storage portions 9 at the other end each have a lock spring. The two terminal plates 12 having the interior 10 'are accommodated. In the figure, 13 and 13 'are release buttons for releasing the electric wires of the two lock springs 10, 10, 10' and 10 'arranged on both sides of the body 4a, and 102 is released by inserting a jig. A release hole for releasing the button 10 (or 10 '), and 29 is an electric wire insertion hole.
[0013]
  The terminal plate 11, the lock spring 10, the release button 13, and the terminal plate 12, the lock spring 10 ′, and the release button 13 ′ constitute a known quick connection terminal portion.
[0014]
  Here, each terminal plate 12 is formed with an extended piece 12a to which a fixed contact 14 is fixed, and each extended piece 12a is extended and disposed in a corresponding central storage portion 15 of the body 4a. In addition, a support piece 11 a is formed at the lower end of each terminal plate 11 so as to extend and be arranged at the bottom of the corresponding central storage portion 15. And on each support piece 11a arrange | positioned in the center accommodating part 15, the lower end of the opening-closing body 16 which consists of metal plates is rotatably supported.
[0015]
  Each opening / closing body 16 is fitted with a protrusion provided at the lower side end in a V-shaped position restricting recess 17 formed on the inner wall of the corresponding central storage portion 15, with the lower portion of the position restricting recess 17 as the center. It is pivotally supported. Further, each open / close body 16 is provided with a movable contact 18, and the movable contact 18 contacts and separates from the fixed contact 14 in accordance with the rotation of the open / close body 16, and the electrical connection between the terminal plate 11 and the terminal plate 12 is performed. The contact portion S1 or S2 that performs the proper connection and disconnection is configured with the corresponding fixed contact 14.
[0016]
  As described above, one fixed contact 14 and one movable contact 18 constitute one set of contact portions S1 or S2, and two sets of contact portions S1 and S2 are simultaneously opened and closed to constitute a double-cut switch portion. .
[0017]
  The two opening / closing bodies 16, 16 for opening / closing the contact portions S 1, S 2 are configured to be simultaneously driven by the rotation of one handle 19. That is, the lower part of the handle 19 is provided with two cylindrical parts 19a that open downward, and coil springs 20 are respectively accommodated in the two cylindrical parts 19a, and the lower parts of the coil springs 20 correspond to the two cylindrical parts 19a. The opening / closing body 16 is locked to the upper edge, and the opening / closing bodies 16 are driven simultaneously according to the rotation of the handle 19. Therefore, each said cylinder part 19a comprises the opening-and-closing body operation part for operating each opening-and-closing body 16 of both contact part S1, S2.
[0018]
  In addition, the handle 19 is so fitted that the inverted triangular shafts 19b provided on both sides are rotatably fitted to the bearings 21 formed on the inner wall of the central opening of the ceiling surface of the cover 4b from below when the cover 4b is attached. It has become. Engaging protrusions 23 that engage with slide cams 22 to be described later are provided at both upper ends.
[0019]
  The push button handle 1 is attached to the cover 4b so as to be movable up and down, and is always urged upward by a return spring 24 disposed below.
[0020]
  The slide cam 22 is formed with a hooking cam body 25 slidably engaged with the hooking protrusion 23 of the handle 19 on the lower surface of both ends. The slide cam 22 is attached to the lower surface side of the push button handle 1 so as to be slidable in both directions. A protrusion (not shown) formed on the lower surface of the push button handle 1 is inserted between a pair of elastic pieces 26 formed inside, and a restoring force is applied by the elastic pieces 26.
[0021]
  Here, the opening / closing mechanism of the push button switch unit 2 used in the present basic configuration includes the opening / closing body 16, the slide cam 22, the handle 19, and the coil spring 20.
[0022]
  As shown in FIG. 2 (d), the piano handle 3 is provided with a pair of turning recesses (not shown) from the lower surface on the pivot end side, and is detached from the push button switch portion 2 from the lower surface on the pressing operation end side. A pair of retaining pieces 27 for stopping are suspended. The pivot recess is pivotably engaged with a shaft portion 28 formed on the cover 4b, and the retaining piece 27 is inserted into the space 6 to be attached to the push button switch portion 2. When the pressing operation end side on the side of the retaining piece 27 is pressed, it rotates in a piano touch manner around the shaft portion 28. The push button handle 1 of the push button switch unit 2 is pushed downward by the rotation of the piano handle 3.
[0023]
  Next, based on FIG. 4, operation | movement of the pushbutton switch part 2 is demonstrated easily. FIG. 3 (a) shows a state in which neither of the contact points S1, S2 of the push button switch unit 2 is off and the piano handle 3 shown in FIG. 2 (d) is not operated at all. FIG. 4B shows a state in which the piano handle 3 is pushed and operated while both the contact points S1 and S2 of the push button switch unit 2 are on.
[0024]
  If the piano handle 3 shown in FIG. 2D is pushed in the state shown in FIG. 4A, the push button handle 1 is pushed down against the return spring 24 as the piano handle 3 is pushed. When the push button handle 1 is pushed down, the slide cam 22 is lowered. Then, the engagement cam body 25 on the right side of the slide cam 22 in the drawing hits the engagement protrusion 23 on the right side of the handle 19 so that the handle 19 is rotated rightward in the drawing. At this time, the slide cam 22 slides to the right in the drawing as the handle 19 rotates. When the handle 19 is thus rotated, both the opening / closing bodies 16 connected to the lower end of the coil spring 20 are rotated to the left in the figure, and the movable contacts 18 of the opening / closing body 16 are respectively fixed to the corresponding ones. The contact member 14 is contacted, and the opening / closing body 16 cannot be rotated any more. In this position, the fixed contact 14 is provided so that the line connecting the upper end and the lower end of the opening / closing body 16 is slightly inclined to the side opposite to the fixed contact 14 with respect to the line perpendicular to the bottom surface of the central storage portion 15. The extension piece 12 of the terminal plate 12 is formed and arranged so as to be perpendicular to the bottom surface, and the protruding amount of the movable contact 18 and the position of the lower end of the opening / closing body 16 are set.
[0025]
  Thus, when the movable contact 18 comes into contact with the fixed contact 14, the push button handle 1 can no longer be pushed down. At this position, the coil spring 20 is not reversed. Accordingly, when the pressing force of the piano handle 3 is released at this position, the push button handle 1 is pushed up by the return spring 24, and at this time, the piano handle 3 returns to the original state. At the same time, the slide cam 22 is returned to the center by the spring force of the elastic piece 26, and the handle 19 and the opening / closing body 16 are also rotated and returned to the state shown in FIG. The movable contacts 18 are separated from the fixed contacts 14 by the return of the two opening / closing bodies 16, and the contact portions S1 and S2 return from the on state to the off state. The return position of the opening / closing body 16 is restricted to a fixed position by a fall prevention rib 33 formed from the bottom of the central storage portion 15.
[0026]
  Here, even if one of the contact portions S1 or S2 is welded, the power to the load L can be cut off by separating the other.
[0027]
  In this basic mode, the contact position of the movable contact 18 with respect to the fixed contact 14 is reversed by changing the position where the coil spring 20 is reversed and the handle 16 is reversed and rotated to a position before each is reversed. The parts of the existing double-cut pushbutton switch device that opens and closes the contact portions S1 and S2 by operation can be used, and the parts can be shared.
[0028]
  (Embodiment)
  This embodiment constitutes a piano handle type push button switch device that can perform position display in a single cut, and when the push button handle 1 is pushed, one set of contact portions is turned on, and when the push operation is released, it is turned off. And a piano handle 3 that is disposed so as to face the front surface of the push button switch portion 2 and is pivotally attached to the push button switch portion 2 so that the push button handle 1 can be pushed in. It is the same as the basic form.
[0029]
  This embodiment is hereinafter referred to as a basic form.State andDifferences will be described mainly with reference to FIGS. In addition, the same number and code | symbol are attached | subjected to the component which has the same role as the component of a basic form, and description is abbreviate | omitted.
[0030]
  First, in the body 4a of the present embodiment, connection terminal storage portions 8 and 9 are provided at both ends, respectively, as in the basic configuration, and a central storage portion 15 in which a switch mechanism portion is stored is provided at the center portion. The terminal block 100, the two locking springs 10, and the release button 13 are accommodated in the connection terminal accommodating portion 8, and the terminal plate 101, the two locking springs 10 ′, and the release button 13 are accommodated in the connecting terminal accommodating portion 9. 'And are stored.
[0031]
  Each of the terminal plates 100 and 101 includes front pieces 100a and 101a, and pressing pieces 100b and 101b and contact pieces 100c and 101c that are located behind the front pieces 100a and 101a and face each other. The flat plate-like portion at the center of the lock springs 10 and 10 ′ is brought into contact with the contact pieces 100c and 101c of the terminal plates 100 and 101 so that the lock springs 10 and 10 ′ and the terminal plates 100 and 101 are quickly connected. Each terminal part is configured.
[0032]
  Further, as shown in FIGS. 12 (a) and 12 (b), one terminal board 101 has a contact holding piece 101d inserted downward from the upper side into the central housing portion 15 substantially vertically downward with respect to the bottom of the body 4a. Are formed integrally, and a fixed contact 14 disposed in the central storage portion 15 is provided at the tip of the contact holding piece 101d.
[0033]
  On the other terminal plate 100, a connecting piece 100d extending to the central storage portion 15 extends, and a support piece disposed along the inner peripheral surface of the rear wall of the central storage portion 15 at the tip of the connecting piece 100d. A piece 100e is formed. The contact piece 100d is formed so as to be positioned closer to the presser 100b than the contact piece 100c, and has a relatively large insulation distance from the contact holding piece 101d disposed in the central storage portion 15.
[0034]
  A rear end edge (lower end edge in FIG. 5) of the opening / closing body 16 'made of a flat conductive plate is in contact with the support piece 100e. Protrusions 16a project from the rear side edges of the opening / closing body 16 '(lower side edges in FIG. 5), and the protrusions 16a have a V-shaped position restriction with a wide front end provided in the central storage part 15. It is inserted into the recess 17. Therefore, the opening / closing body 16 ′ can be rotated within the range of the position restricting recess 17 around the rear edge (upper edge in FIG. 5) with the rear edge (upper edge in FIG. 5) in contact with the support piece 100e. Become.
[0035]
  The opening / closing body 16 ′ is disposed so as to face the contact holding piece 101 d, and a movable contact 18 that forms a cut-off contact portion S together with the fixed contact 14 is provided at a portion facing the fixed contact 14 provided on the contact holding piece 101 d. It is provided. That is, when the opening / closing body 16 ′ rotates, the movable contact 18 and the fixed contact 14 are brought into contact with and separated from each other.
[0036]
  As described above, each pair of lock springs 10 and 10 ′ stored in the connection terminal storage portions 8 and 9 is disposed corresponding to one terminal plate 100 and 101, respectively. The springs 10 and 10 'are electrically connected to each other. That is, the two locking springs 10 corresponding to the terminal plate 100 accommodated in the connection terminal accommodating portion 8 and the two chains corresponding to the terminal plate 101 accommodated in the connecting terminal accommodating portion 9 by opening and closing the contact portion S. Since conduction and non-conduction with the lock spring 10 'can be switched simultaneously, one of the two lock springs 10 and 10' can be used as a feed wiring terminal.
[0037]
  By the way, a display block BL provided with a position indicator lamp NE composed of a neon lamp and a current limiting resistor R is connected between the terminal boards 100 and 101. The display block BL includes a block main body 60 that is a synthetic resin molded product in which three conductive plates 61 to 63 are molded integrally at the same time. The block main body 60 is formed in a U-shape when viewed from the front (upper side in FIG. 5), and a contact 61 a formed by bending one end of the conductive plate 61 into a U-shape is used as one leg piece of the block main body 60. The caulking portion 61b is projected from the base of the one leg piece, and the other end portion of the conductive plate 61 is bent in a U-shaped cross section.
[0038]
  Further, a contact 62a formed by bending one end of the conductive plate 62 into a U-shape is projected from the central piece of the block body 60, and the other end of the conductive plate 62 is bent into a U-shaped cross section. The part 62b is protruded from one side surface of the block main body 60. On the same side surface of the block body 60, a caulking portion 63b in which one end portion of the conductive plate 63 is bent in a U-shaped cross section also protrudes. The conductive plate 63 is also provided with a caulking portion 63a bent in a U-shaped cross section at the other end, and the caulking portion 63a protrudes from the base of the other leg piece of the block body 60. The lead terminal of the resistor R is caulked to the caulking portion 61b and the caulking portion 63a, and the lead terminal of the position indicator lamp NE is caulked to the caulking portion 62b and the caulking portion 63b.
[0039]
  The block main body 60 is accommodated in the cover 4b at a portion corresponding to the connection terminal accommodating portion 9, and the two contacts 61a and 62a protruding from the block main body 60 are in contact with the front pieces 100a and 101a of the terminal plates 100 and 101, respectively. Are arranged as follows.
[0040]
  That is, a storage recess 55 having a rear opening (opened in FIG. 11) is formed at one end of the cover 4b in the longitudinal direction, and the block body 60 is stored in the storage recess 55. A partition wall 55a, which is one wall surface of the storage recess 55, is provided with a pair of protrusions 55b (see FIG. 11) protruding toward the storage recess 55, and the protrusions 55b store the block body 60 in the storage recess. When housed in the place 55, the block body 60 is formed so as to be in pressure contact with the tip of the leg piece.
[0041]
  Therefore, if the block main body 60 is stored in the storage recess 55, the block main body 60 is temporarily held by the cover 4b, and it is not necessary to hold down the block main body 60 when connecting the cover 4b to the body 4a, and the connecting work is easily performed. be able to.
[0042]
  If the cover 4b is joined to the body 4a while the block body 60 is temporarily held on the cover 4b, the tip of the contact 61a is elastically contacted with the front piece 100a of the terminal plate 100, and the tip of the contact 62a is connected to the terminal plate. It comes into elastic contact with the front piece 101a of 101. That is, a series circuit of the resistor R and the position indicator lamp NE is inserted between the two terminal boards 100 and 101. Accordingly, the internal circuit of the pushbutton switch unit 2 is shown in FIG.
[0043]
  The push button switch device of the present embodiment constitutes a contact portion S of a single pole switch (so-called one-side switch) used for single pole single throw, which has one fixed contact 14 and one movable contact 18, and has a resistance R And the position indicator lamp NE are connected in parallel to the contact portion S. In this configuration, if the contact portion S is inserted between the power source and the load and used as a one-off switch for turning on / off the power to the load, the power is not supplied to the load (the contact portion S is turned off). ), The position indicator NE is turned on. That is, if an illumination load is used as the load, the position indicator lamp NE is turned on when the illumination load is turned off, so that the position of the switch can be easily confirmed even in the dark.
[0044]
  By the way, on the front wall of the portion corresponding to the storage recess 55 in the cover 4b, a through hole window 40 communicating with the storage recess 55 is formed at a portion between the shaft portions 28. A lamp cover 41 that constitutes a visually recognizing part having the property is attached. Therefore, the lighting / extinguishing state of the position indicator lamp NE can be visually recognized through the lamp cover 41.
[0045]
  The contact portion S composed of the movable contact 18 and the fixed contact 14 is provided with a coil spring 20, a handle 19 ′, a push button handle 1, and a slide cam 22 provided to rotate the opening / closing body 16 ′ as in the basic configuration. The switch mechanism is configured together with the return spring 24.
[0046]
  In the coil spring 20 according to the present embodiment, a spring seat piece 16b protruding from the front edge (upper edge in FIG. 5) of the opening / closing body 16 ′ is inserted at the rear end (lower end in FIG. 5). It is housed in a cylindrical portion 19a provided on the rear surface and having an open rear surface.
[0047]
  The handle 19 'is disposed on the rear surface side (see FIG. 11) of the cover 4b and exposed on the front surface side as in the basic configuration.
[0048]
  Further, a triangular shaft 19b having a tapered head is projected on both side surfaces of the middle portion of the handle 19 ', and a fulcrum shaft 19b is pivotally supported on the bearing 21 in the same manner as in the basic form. The handle 19 ′ is swingably attached to the cover 4b.
[0049]
  Note that the piano handle 3 is pivotally attached to the front end of the cover 4b of the push button switch portion 2 corresponding to the present embodiment after the push button switch portion 2 is attached to the attachment frame 7 in the same manner as the basic form.
[0050]
  By attaching the piano handle 3 to the push button switch portion 2 as described above, the push button handle 1 can be pushed into the cover 4b side by the pushing operation of the piano handle 3.
[0051]
  The operation of the push button switch unit 2 will be briefly described below. FIG. 12A shows a state in which the push button handle 1 is not pushed. In this case, the handle 19 ′ is tilted to the left as shown by the spring force of the coil spring 20. 16 ′ is tilted to the right with the protrusion 16 a as the center, and the movable contact 18 is separated from the fixed contact 14. That is, the contact portion S is in an off state. At this time, when the push button handle 1 is pushed up by the return spring 24, it protrudes upward in the figure.
[0052]
  Next, when a pressing force is applied to the piano handle 3 (not shown in FIGS. 12A and 12B) from this state, the push button handle 1 is pushed toward the cover 4b against the return spring 24. The slide cam 22 moves downward together with the push button handle 1. At this time, the engagement cam body 25 on the right side of the slide cam 22 in the drawing contacts the engagement protrusion 23 on the right side of the handle 19 ′ and presses the right end of the handle 19 ′, so the handle 19 ′ rotates clockwise around the shaft 19b. Rotate. The right engaging cam body 25 of the slide cam 22 is located on the right side of the right engaging protrusion 23 of the handle 19 ′, and the slide cam 22 is pushed right as the handle 19 ′ rotates. Try to slide to the left. On the other hand, the opening / closing body 16 ′ rotates counterclockwise about the protrusion 16 a as the handle 19 ′ rotates, and the movable contact 18 eventually contacts the fixed contact 14.
[0053]
  Since the arrangement position of the fixed contact 14 is set so that this contact position is before the coil spring 20 is compressed and reversed, the movable contact 18 contacts the fixed contact 14 and at the same time, the opening / closing body 16 ' Cannot rotate. Therefore, the rotation of the handle 19 'is also stopped, and the push button handle 1 cannot be further pushed down. This state is a state shown in FIG. 12B, and the contact portion S is kept on while the pressing force to the push button handle 1 is held in this state.
[0054]
  When the pushing operation of the piano handle 3 is released here, the push button handle 3 is pushed upward in the figure by the restoring force of the restoring spring 24. As a result, the engagement between the engagement protrusion 23 of the handle 19 'and the engagement cam body 25 on the right side of the slide cam 22 is also released, so that the handle 19' rotates counterclockwise about the shaft 19b by the restoring force of the coil spring 20. Returning to the state of FIG. With the rotation of the handle 19 ', the opening / closing body 16' also rotates clockwise around the protrusion 16a. With this rotation, the movable contact 18 is separated from the fixed contact 14, and the contact S is turned off.
[0055]
  As described above, in the push button switch portion 2 of the present embodiment, the contact portion S is turned on while the piano handle 3 is being pushed, and the contact portion S is turned off when the piano handle 3 is not pushed, as in the basic embodiment. Configure the switch device.
[0056]
  When the piano handle 3 is attached to the push button switch unit 2 as described above, a display window 112 is provided at a portion corresponding to the lamp cover 41 of the push button switch unit 2 as shown in FIG. The front end portion of the display portion 113 made of a translucent resin molded product is fitted from the back side of the piano handle 3.
[0057]
  When the piano handle 3 is attached to the push button switch unit 2, the back surface of the display unit 113 is disposed opposite to the lamp cover 41 of the push button switch unit 2, and the position indicator lamp NE emitted from the lamp cover 41 when the switch unit S is off. Light enters from the back surface of the display unit 113 and is irradiated from the front surface side to the outside.
[0058]
  In addition, if it is set as the structure which does not provide the position indicator lamp NE, the one-way pushbutton switch apparatus is also realizable.
[0059]
【The invention's effect】
  According to the first aspect of the present invention, when the push button handle is pushed in, the handle is rotated in accordance with the pushing operation of the push button handle, and a set of contact portions is driven according to the rotation of the handle, and the push button is operated. Since it has a push button switch portion provided with an opening / closing mechanism that drives the contact portion to return when releasing the push of the handle, and a piano handle that is attached to the top of the push button switch portion and presses the push button handle by a piano touch operation. There is an effect that it is possible to provide a push button switch device that is cut and has a piano handle operation type.
[0060]
  In addition, the push button switch portion slides on the outer side of the container, the push button handle attached to the container so that the operation surface is exposed and can be moved forward and backward in the exposure direction, and the surface facing the operation surface of the push button handle. A slide cam that is movably attached to the push button handle and has an elastic piece and is given a restoring force in the anti-sliding direction by the elastic piece, and sliding of the slide cam by the pushing operation of the push button handle The handle that rotates in response to the rotation of the handle, and one end of which is rotatably supported and the other end is connected to the handle via a coil spring, and the direction of rotation of the handle is opposite to the rotation of the handle. An opening / closing body that rotates in a direction, a movable contact that is provided on the opening / closing body and contacts / releases a fixed contact disposed in the body by the rotation of the opening / closing body, and a direction in which the push button handle is pushed And a return spring biasing in the opposite direction, the slide cam, the handle, the coil spring and the opening / closing body constitute the opening / closing mechanism, and the movable contact and the fixed contact constitute the contact portion. The position of the fixed contact is set so that the movable contact of the opening / closing body contacts the fixed contact at a position where the handle does not reverse and the rotation of the opening / closing body is restricted by this contact, and the push button handle is pressed. After the operation is released, the handle and the opening / closing bodyBy the return force of the coil springBecause it is turned back, AlreadyThere is an effect that it is possible to provide a double-cut pushbutton switch device that can share the components by using the parts of the existing inverted double-cut pushbutton switch as it is.
[0061]
  Further, the terminal plate of the contact portion is housed in the pushbutton switch portion, and is simultaneously with the block main body of the synthetic resin molded product of the display block having a series circuit of a position indicator lamp composed of a neon lamp and a current limiting resistor. Two formed on the two conductive plates that are molded to form the conductive path of the series circuit and project from the block bodyContactEach of the tentacles is elastically contacted, and the series circuit is connected in parallel to the contact portion. When the contact portion is in an off state, the position indicator lamp is energized and lit through a load, and the lighting light is transmitted to the piano handle. Since the piano handle has a visual recognition part that allows the light from the position indicator lamp to be visually recognized, the position of the switch device is changed to the front side of the piano handle when the contact indicator is turned off. When it is used for the lighting operation of the lighting device, the position of the switch device can be recognized even in the darkness of the extinguished state, which is particularly effective.
[0062]
  In addition, the container is composed of a body in which the terminal plate of the contact portion is housed, and a cover that is attached and fixed to the body.The cover is provided with a storage recess for storing the block main body, and the storage recess is provided with a protrusion on the wall surface protruding toward the storage recess, and the protrusion is stored in the storage. The block main body is formed so as to be pressed against the block main body stored in the recess, and the block main body is stored in the storage recess in a temporarily held form.
[Brief description of the drawings]
FIG. 1 (a) is a front view showing a state in which a cover of a push button switch portion used in a double cut push button switch device of a basic form of the present invention is removed.
  (B) is side sectional drawing of the pushbutton switch part used for the same as the above.
  (C) is a front view of the push button switch used in the above.
  (D) is a side view of a push button switch used in the above.
  (E) is a bottom view of the push button switch used in the above.
FIG. 2 is an exploded perspective view of a push button switch portion used for the above.
FIG. 3 is a wiring diagram showing an example of use of the above.
FIG. 4 is an operation explanatory diagram of a push button switch unit used for the above.
FIG. 5 is an exploded perspective view of a push button switch unit used in the embodiment of the present invention.
FIG. 6 is an enlarged perspective view of an example of a piano handle used for the above.
FIG. 7 is a front view of a push button switch unit used for the above.
FIG. 8 is a side view of a push button switch unit used in the above.
FIG. 9 is a bottom view of the push button switch used in the above.
FIG. 10 is a front view of the body side in a state where a cover of the push button switch used for the above is removed.
FIG. 11 is a back side view of the cover side in a state where it is removed from the body of the push button switch part used for the above.
FIG. 12 is a diagram for explaining the operation of the push button switch unit.
FIG. 13 is a circuit diagram of the push button switch unit of the above.
[Explanation of symbols]
1 Push button handle
2 Pushbutton switch
3 Piano handle
14 Fixed contacts
16 Opening and closing body
18 Movable contact
19 Handle
20 Coil spring
22 Slide cam
24 Return spring
S1, S2 contact part

Claims (1)

When the push button handle is pushed in, the handle is rotated in accordance with the pushing operation of the push button handle, and a set of contact portions is driven in accordance with the turning of the handle, and the contact point is released when the push button handle is released. A push button switch unit provided with an opening / closing mechanism for returning the unit, and a piano handle attached to the upper part of the push button switch unit to press the push button handle by a piano touch operation,
The push button switch portion is slidable on the outside of the instrument body, with the operation surface exposed and attached to the instrument so as to be able to advance and retreat in the exposure direction, and on the surface facing the operation surface of the push button handle. The slide cam is attached to the push button handle and has an elastic piece, and a restoring force is applied in the anti-sliding direction by the elastic piece, and the slide cam is slid by the pushing operation of the push button handle. And the other end of the handle is pivotally supported and the other end is connected to the handle via a coil spring. The handle rotates in a direction opposite to the turning direction of the handle. An opening / closing body that rotates, a movable contact that is provided on the opening / closing body and that contacts / releases a fixed contact disposed in the body by the rotation of the opening / closing body, and a direction in which the push button handle is pushed is opposite to the operation direction A return spring that biases in the direction, the slide cam, the handle, the coil spring, and the opening / closing body constitute the opening / closing mechanism, and the movable contact and the fixed contact constitute the contact portion, The position of the fixed contact is set so that the movable contact of the open / close body contacts the fixed contact at a position where the handle does not reverse and the rotation of the open / close body is restricted by this contact, and the push operation of the push button handle is released. Later, the handle and the opening / closing body are rotated and returned by the return force of the coil spring, and the terminal plate of the contact part is housed in the push button switch part, and includes a position indicator lamp comprising a neon lamp and a current limiting resistor. Two conductive plates that are simultaneously molded in the block body of a synthetic resin molded product of a display block having a series circuit of the above and form a conductive path of the series circuit The two contactors protruding from the block body are elastically contacted to connect the series circuit in parallel to the contact portion, and the position indicator lamp is energized through the load when the contact portion is in the OFF state. Turns on and emits lighting light to the piano handle side, the piano handle is provided with a visual recognition part that can visually recognize the light from the position indicator lamp,
The container is composed of a body in which the terminal plate of the contact portion is accommodated, and a cover that is attached and fixed to the body.
The cover is provided with a storage recess for storing the block body,
The storage recess is provided with a protrusion on the wall surface that protrudes toward the storage recess,
The protrusion is formed so as to be in pressure contact with the block main body stored in the storage recess,
The pushbutton switch device, wherein the block body is stored in the storage recess in a temporarily held form .

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