JP2003242859A - Piano handle type switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain inclination of a push-button handle in a pressing operation of a piano handle. <P>SOLUTION: A pair of cross-sectionally nearly semicircular projecting parts 73, 73 along the lateral direction of a container 5 are projected in the vicinities of both ends of the front face of the push-button handle 32 in the longitudinal direction of the container 5. An operating rib 44 having a flat surface part abutting on the projecting parts 73, 73 and having an area having a size as much as almost overlapping the front face of the handle 32 is projected at the center part of the back face of the piano handle 43. Since the projecting parts 73, 73 formed in the vicinities of both ends of the front face of the push- button handle 32 abut on the rib 44 on the back face of the piano handle 43 even when an engaging cam body 38 of a slide cam 31 abuts on an engaging projection 34 to apply torque to a reversing handle 31, the inclination of the handle 32 with respect to the front face of the container 5 can be restrained. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piano handle type switch in which contacts are reversed by pushing a piano handle.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 9, a push button handle 32 that is operated by pushing is provided on the front surface.
The switch body 1 that opens and closes the contact 100 for each pressing operation of the switch body and the switch body 1 in which a plurality of terminal plates 15 and 18 connected to an external electric wire are housed in the body 5, and a push button handle 32 on the front side of the body 5. A piano handle type switch is provided, which is arranged so as to face each other, and has one end pivotally attached to the body 5 and a piano handle 43 whose back surface is in contact with the push button handle 32. The piano handle 43 has a structure in which one end can be pushed as the fulcrum and the other end can be pushed in like the keyboard of a piano. In addition, the operation surface of the piano handle 43 is larger than that of the push button handle 32, and it is possible to perform a push operation using a portion other than a finger.

By the way, the switch body 1 is shown in FIGS.
As shown in 0, the first terminal plate 18 and the second terminal plate 15 housed in the body 5 and electrically connected to the external electric wire
And a fixed contact 25 provided on the first terminal plate 18, and an inversion handle 31 that is swingably held by the body 5.
And a reversing mechanism portion that alternately rocks the reversing handle 31 in the opposite direction each time the push button handle 32 is pressed, and one end edge that is in contact with and in contact with the second terminal plate 15 is a fulcrum so that it can rotate freely. 5, the opening / closing member 24 provided with a movable contact 29 that is brought into contact with and separated from the fixed contact 25, the reversing handle 31 and the opening / closing member 24 are connected, and the opening / closing member 24 is reversed as the reversing handle 31 swings. The switch mechanism is provided with a reversing spring 30 for rotating. The switch mechanism portion configured as described above is housed in the central portion of the body 5 in the longitudinal direction, and the first and second terminal boards 18 are provided on both sides in the longitudinal direction of the body body 5 with the switch mechanism portion interposed therebetween. , 15 are stored.

The internal space of the body 5b which constitutes the body 5 together with the cover 2a is divided into three chambers in the longitudinal direction,
The compartments on both sides serve as terminal accommodating chambers 13 and 14 for accommodating terminals, and the central portion forms a central accommodating chamber 23 for accommodating the switch mechanism portion. The terminal accommodating chamber 13 accommodates a terminal composed of a second terminal plate 15, two locking springs 16 and a release button 17, and the terminal accommodating chamber 14 accommodates the first terminal plates 18 and 2.
A terminal composed of the individual lock spring 19 and the release button 21 is housed. In addition, the body 5 corresponding to the terminal storage chambers 13 and 14
As shown in FIG. 13, a pair of electric wire insertion ports 13a and 14a are provided through the rear wall of the b, and each pair of electric wire insertion ports 13a
One release hole 13 is provided near each of a and 14a.
b and 14b are pierced.

The locking springs 16 and 19 are formed by bending both ends of an elastic conductive metal strip.
Locking pieces 16a, 19a on both ends of the central pieces 16c, 19c
And contact pieces 16b and 19b, respectively. The locking pieces 16a, 19a are bent in a J shape and are inclined so as to widen the distance from the central pieces 16c, 19c toward the tip from the connecting portion with the central pieces 16c, 19c. Further, the contact pieces 16b and 19b are bent in an S shape and have elasticity in the thickness direction of the central pieces 16c and 19c.

On the other hand, each of the terminal plates 15 and 18 has a connecting piece 15
a, 18a, and pressure contact pieces 15b, 18b and contact piece 15 which are connected to each other by connecting pieces 15a, 18a and face each other.
c, 18c. Central piece 1 of locking springs 16 and 19
6c and 19c are flat plates, and contact the contact pieces 15c and 18c of the terminal plates 15 and 18, and the locking pieces 16a and 19a and the contact pieces 16b and 19b are made to oppose the press contact pieces 15b and 18b. Regarding the positional relationship between the terminal plates 15 and 18 and the locking springs 16 and 19 and the electric wire insertion ports 13a and 14a, the electric wires introduced into the body 5 through the electric wire insertion ports 13a and 14a described above are Locking pieces 16a and 19a, contact pieces 16b and 19b, and pressure contact pieces 15b of the terminal plates 15 and 18,
It is set so as to be inserted between 18b. Therefore, when the electric wire is inserted into the body 5, the locking piece 16a,
19a and contact pieces 16b and 19b and terminal plates 15 and 18
The electric wire is press-contacted and sandwiched between the pressure contact pieces 15b and 18b, and the tips of the locking pieces 16a and 19a bite into the core wire of the electric wire to prevent the wire from being pulled out, and the locking pieces 16a and 19a and the contact piece 16b, 19b allows the wire and the terminal plate 15,
Electrical connection with 18 is made. A terminal of this kind of structure that can connect electric wires by utilizing the spring force of the locking springs 16 and 19 without using terminal screws is called a quick-connect terminal.

The first terminal plate 18 accommodated in the terminal accommodating chamber 14 has a contact holding piece 18 inserted into the central accommodating chamber 23.
d is integrally formed, and a fixed contact 25 is provided in the central storage chamber 23 at the tip of the contact holding piece 18d. The second terminal board 15 accommodated in the terminal accommodating chamber 13 has a connecting piece 15d extending to the central accommodating chamber 23. A support piece 15e is formed along the inner peripheral surface of the wall. The contact piece 15d is more pressed than the contact piece 15c.
It is formed so as to be located closer to b and has a relatively large insulation distance from the contact holding piece 18d arranged in the central storage chamber 23. The rear edge of the opening / closing element 24 abuts on the support piece 15e. Protrusions 28 are provided on both side edges of the opening / closing member 24, and the protrusions 28 are inserted into a V-shaped position regulating recess 27 having a wide front end provided in the central storage chamber 23. Therefore,
The opening / closing member 24 can be rotated within the range of the position regulating recess 27 with the rear edge as a fulcrum in a state where the rear edge is in contact with the support piece 15e. The opening / closing member 24 is arranged so as to face the contact holding piece 18d, and a movable contact 29 that constitutes the contact 100 together with the fixed contact 25 is provided at a portion facing the fixed contact 25 provided on the contact holding piece 18d. That is, when the opening / closing element 24 rotates, the movable contact 29 comes into contact with and separates from the fixed contact 25, and the state in which the second terminal plate 15 and the first terminal plate 18 are electrically connected and the state in which they are separated from each other are separated. To be selected.

By the way, the contact 100 is provided with a reversing spring 30, a reversing handle 31, which is provided for rotating the opening / closing member 24.
The push button handle 32, the slide cam 33, and the return spring 37 constitute a switch mechanism section. The reversing spring 30 is a compression coil spring, and a switch 2 is provided at the rear end of the reversing spring 30.
The spring seat piece 24a protruding from the front edge of the No. 4 is inserted, and the front end portion is provided on the reversing handle 31 and has a cylindrical portion 31a having a rear surface opening.
It is housed inside. A front end portion of the reversing handle 31 is exposed to the front surface side of the cover 5a through a through hole 52 penetrating the bottom wall of the recess 51 provided on the front surface of the cover 5a. Triangular fulcrum protrusions 31b having a tapered front end are provided on both side surfaces of the intermediate portion of the reversing handle 31, and the fulcrum protrusions are formed on the bearing portions 50 formed on both side edges of the through hole 52 and opened rearward. The inversion handle 31 is swingably attached to the cover 5a by pivotally supporting 31b. That is, the front end of the reversing handle 31 is inserted into the through hole 52 of the cover 5a from the rear, and the fulcrum protrusion 31b is attached to the bearing portion 50.
Insert into the cover 5a so that the inverted handle 3
1 can swing freely. As described above, the reversing handle 31 is connected to the opening / closing element 24 via the reversing spring 30, and when the reversing handle 31 swings, it passes through the position where the reversing spring 30 is most compressed in the middle of the swing range. Before and after this position, the direction of the spring force acting on the opening / closing element 24 from the reversing spring 30 is reversed, and the opening / closing element 24 is rapidly moved by the spring force of the reversing spring 30.

A pair of engaging projections 34 projecting forward and engaging with the slide cam 33 are provided on both sides of the portion of the reversing handle 31 exposed to the front surface side of the cover 5a through the through hole 52. The slide cam 33 is a cover 5a
When the push button handle 32 provided on the
It is configured to slide along the back surface of the push button handle 32 within a plane including the swing direction of the reversing handle 31 in accordance with the positional relationship of 1. The configuration of the slide cam 33 will be described later.

The push button handle 32 is provided with guide protrusions 36 projecting at the rear end portions of both outer side surfaces in the longitudinal direction, and along the front-rear direction (vertical direction in FIG. 20) at the rear portions of both inner peripheral surfaces of the recess 51 of the cover 5a. To the guide groove 35 formed by
Is inserted, it is movable in the front-rear direction and is prevented from slipping forward.

A protrusion 32d is provided on the rear surface of the push button handle 32. By inserting the protrusion 32d into a hole 37d formed in a flat piece 37b of a return spring 37 made of a leaf spring,
A return spring 37 is attached to the rear surface of the push button handle 32. The return spring 37 is formed by integrally extending two return spring pieces 37a, which are spread and expanded rearward from the flat piece 37b, and the tip of the spring piece 37a of the return spring 37 is elastically contacted with the bottom surface of the recess 51. As a result, the push button handle 32 is biased forward.

The slide cam 33 is formed by a thermoplastic resin having a high elasticity such as polyacetal into a square shape, and a hooking cam body 38 corresponding to the hooking protrusion 34 of the reversing handle 31 is formed on the rear surface of the opposite side portion. It has a shape in which a pair of spring pieces 33a are integrally projected so as to have a V shape at the center of another side. As shown in FIG. 20, the protrusion 32a protruding from the rear surface of the push button handle 32 is inserted between the spring pieces 33a, whereby the slide cam 33 is slidably mounted on the rear surface of the push button handle 32, and The elasticity of the spring piece 33a gives a restoring force to the slide cam 33.

At the end of the cover 5a of the body 5 of the switch body 1 on the surface side, a piano handle 43 is pivotally mounted.
A pair of shaft portions 192 protruding obliquely forward are integrally provided. The front end portion of the shaft portion 192 is formed in a columnar shape along the lateral direction of the cover 5a. As shown in FIG. 15, at one end of the back surface of the piano handle 43, a metal bearing spring 191b formed of a leaf spring is fitted in a hole 191 for fitting.
A bearing portion 191 attached to a is provided. The fitting hole 191a is provided with a locking hole 190 on one side of the inner peripheral surface, and the retaining spring 191b of the bearing spring 191b housed in the fitting hole 191a is locked to hold the bearing spring body 191b. . The bearing spring body 191b is bent and formed so that its tip projects into the fitting hole 191a.
The shaft portion 192 is held by 91d and the fitting hole 191a.

Since the protruding portion 191d of the bearing spring 191b is provided near the opening of the fitting hole 191a, the opening width is narrower than the inside of the fitting hole 191a, and the shaft portion 192 provided on the switch body 1 is used as a bearing. When elastically fitted into the fitting hole 191a against the spring force of the working spring 191b, the shaft portion 192 and the bearing portion 191 are pivotally attached so that they cannot be easily separated. In this way, the shaft portion 192 is rotatably fitted into the bearing portion 191, so that the piano handle 4
3 can be pivotally mounted. A retaining piece 43a is provided on the other end of the piano handle 43 so as to project rearward. The retaining piece 43a is the cover 5a.
Is inserted into the space 12 through the insertion hole 54 formed on the front wall of the piano handle 43, and the locking claw 43b provided at the tip of the retaining piece 43a is locked to the peripheral edge of the insertion hole 54, so that the piano handle 43 is rotated. The range of motion is restricted. The insertion hole 54 is shown in FIG.
As shown in, three of them are arranged side by side. A guide piece 15f extends forward from the pressing piece 15b to the terminal plate 15 provided in the vicinity of the insertion hole 54.
The electric wire connected to 5 is prevented from interfering with the retaining piece 43a by protruding toward the insertion hole 54 side.

When the piano handle 43 is attached to the switch body 1 as described above and the other end of the piano handle 43 is pushed, the piano handle is centered on the pivotal joint of the bearing 191 and the shaft 192. 43 rotates. As shown in FIG. 14, a pair of operating ribs 43c are provided on the rear surface of the piano handle 43. When the piano handle 43 is pushed, the push button handle 32 provided on the switch body 1 is pushed by the operating rib 43c. It is pushed into the body 5.

The operation of the switch body 1 will be briefly described below. FIG. 16 shows a state in which the movable contact 29 is in contact with the fixed contact 25, that is, a state in which the contact 100 is closed, and the reversing handle 31 is tilted to the right side of the drawing. At this time, the slide cam 33 is positioned at the center position of the moving range by the spring piece 33a. When a pressing force is applied to the piano handle 43 (not shown in FIG. 16) from this state, the push button handle 32 is pushed into the body 5 against the return spring 37, and together with the push button handle 32, the slide cam 33. Moves downward in FIG. At this time, the engagement cam body 38 on the left side of the slide cam 33 in the drawing abuts on the engagement protrusion 34 on the left side of the reversing handle 31 and pushes the left end portion of the reversing handle 31, so that the reversing handle 31 is centered on the front end of the fulcrum protrusion 31b. Rotate counterclockwise. The engaging cam body 38 on the left side of the slide cam 33 is the inversion handle 31.
Is located on the left side of the engaging protrusion 34 on the left side of the slide cam 33, and the slide cam 33 is pushed to the left as the reversing handle 31 rotates, so that the slide cam 33 moves to the left side in the figure as shown in FIG. To slide. Thus, as shown in FIG. 18, the reversing handle 31 is tilted to the left side of the drawing, the reversing spring 30 is reversed, the opening / closing element 24 is reversed, and the movable contact 29 is separated from the fixed contact 25, that is, the contact 10.
0 reverses to the open state. After that, the piano handle 43
When the pushing force applied to is released, the push button handle 32 is pushed back by the spring force of the return spring 37 as shown in FIG.
The piano handle 43, which is in contact with the push button handle 32, also returns to its original position. At the same time, the slide cam 33 also slides by the spring force of the spring piece 33a and returns to the central position.

Thus, when the pressing force is applied to the piano handle 43 again when the contact 100 is in the open state, the reversing handle 31 can be rotated in the same manner as the above-mentioned operation. However, when the contact 100 is in the open state, the right engaging protrusion 34 of the reversing handle 31 comes into contact with the right engaging cam body 38 of the slide cam 33, so that the reversing handle 31 rotates clockwise and the reversing spring 30.
The movable contact 29 is brought into contact with the fixed contact 25 via the. If the pressing force is released from the piano handle 43 after reversing the contact 100 in this manner, the state shown in FIG. 16 is restored. In short, the contact 100 is opened and closed each time the piano handle 43 is pressed. That is, the slide cam 33, the engaging protrusion 34 of the reversing handle 31, and the return spring 37.
And constitute a reversing mechanism that alternately rocks the reversing handle 31 in the opposite direction each time the push button handle 32 is pressed.

[0018]

By the way, in the above-mentioned conventional example, the ridge 73 'having a substantially semicircular cross section along the lateral direction of the body 5 is provided at the center of the push button handle 32. , A pair of operating ribs 43c projectingly provided on the rear surface of the piano handle 43 come into contact with the ridge 73 ', and the ridge 73' is pressed by the pair of operating ribs 43c when the piano handle 43 is pushed. As a result, the push button handle 32 is pushed into the body 5 against the return spring 37. However, the position where the ridge 73 of the push button handle 32 is provided (the substantially central position in the longitudinal direction of the body 5),
Since the slide cam 33, which moves with the pushing of the push button handle 32, contacts the engaging protrusion 34 of the reversing handle 31 (both ends of the slide cam 33 provided with the engaging cam body 38), the slide cam 33 is separated. The engaging cam body 38 of 33 abuts on the engaging protrusion 34 so that the reversing handle 31
The push button handle 32 inclines with respect to the front surface of the body 5 when the turning force is applied to, and the push button handle 32 had to be pushed in more than necessary. In addition, pushing the push button handle 32 more than necessary in this manner causes a problem that mechanical stress applied to the return spring 37 and the slide cam 33 increases.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a piano handle type switch capable of suppressing the tilt of the push button handle when the piano handle is pushed.

[0020]

In order to achieve the above-mentioned object, the invention of claim 1 is provided with a switch mechanism portion which is provided with a push button handle to be pushed and which opens and closes a contact every push operation of the push button handle. The switch body includes a switch body housed in a body and a piano handle arranged on the front side of the body so as to face the push button handle, with one end pivotally attached to the body and the back side abutting the push button handle. The mechanism section is rotatably housed in the body, and a reversing handle that is swingably held in the body, a reversing mechanism section that alternately swings the reversing handle in opposite directions each time the push button handle is pressed. The reversing mechanism section has an opening / closing member that opens and closes the contacts according to the swing of the reversing handle, and a reversing spring that connects the reversing handle and the opening and closing unit to reversibly rotate the opening and closing when the reversing handle swings. , The back of the push button handle A slide cam that is slidably movable along the push button handle in the moving direction, a return spring that elastically biases the push button handle toward the front side of the body, and both ends of the reversing handle in the swing direction. A piano handle type switch having a hooking cam body provided at both ends of a slide cam and hooking protrusions that come into contact with and separate from each other, wherein the push button handle front surface is at least along the swing direction of the reversing handle. A contact means for contacting the rear surface of the piano handle is provided in the vicinity of both ends of the slide handle, and one engaging cam body of the slide cam abuts one engaging protrusion to apply a turning force to the reversing handle. Even at this time, the abutting means provided near both ends of the front surface of the push button handle contacts the back surface of the piano handle, so that the tilt of the push button handle with respect to the front surface of the instrument is suppressed. Rukoto can.

According to a second aspect of the present invention, in the first aspect of the present invention, the abutting means comprises a pair of ridges projecting near both ends of the front surface of the push button handle. The thickness of the push button handle can be reduced as compared with the case where it is provided on the entire front surface of the push button handle, and the material for manufacturing the push button handle can be reduced.

The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the contact means is formed integrally with the push button handle, and the contact means is formed separately from the push button handle. Cost reduction can be achieved by reducing the number of parts compared to.

The invention of claim 4 is the invention of claim 1 or 2 or 3.
In the invention, the operation rib having a flat surface in contact with the contact means is provided on the back surface of the piano handle so that the operation rib increases the contact area with the contact means. The pushing force from the handle can be received stably.

The invention of claim 5 is the invention of claim 1 or 2 or 3.
In the invention described above, an operating rib formed of a ridge is projected on a portion of the back surface of the piano handle that abuts the abutting means, and a piano handle is manufactured by downsizing the operating rib. Material can be reduced.

The invention of claim 6 is characterized in that, in the invention of claim 4 or 5, the operating rib is formed integrally with the piano handle, and the operating rib is formed separately from the piano handle. Cost reduction can be achieved by reducing the number of parts compared to.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 6, a piano handle type switch of the present embodiment is provided with a push button handle 32 and has a switch body 1 for reversing a contact every pressing operation, and a front surface of the switch body 1 (see FIG. 6). A piano handle 43 which is disposed so as to face the upper surface of the switch) and has one end pivotally attached to the switch body 1 and the push button handle 32 can be pushed. The body 5 of the switch body 1 is held by a mounting frame 2 having a rectangular frame shape and having a window hole 2a for mounting a device. Further, on the front surface side of the mounting frame 2, plates (plate frame 120 and decorative plate 130) having opening windows 120a, 130a that are longer and wider than the window hole 2a of the mounting frame 2 are arranged in an overlapping manner. The attachment frame 2 has three sets of instrument attachment holes 2b as instrument attachment means in the longitudinal direction.

In the following, first, the switch body 1 will be described with reference to FIGS. 1 and 2. However, the same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

The body 5 of the switch body 1 has a rectangular parallelepiped shape, and is a synthetic resin molded product having a front opening body 5.
b and a cover 5a having a rear opening which is joined to the front side of the body 5b. That is, from the rear edges of both side walls of the cover 5a in the lateral direction, the assembly piece 3 is moved rearward.
And the assembly holes 4 formed in the assembly piece 3 are engaged with the assembly protrusions 6 formed on both side surfaces of the body 5b in the lateral direction, whereby the body 5b and the cover 5a are joined together. An inclined surface 6a is formed on the assembly protrusion 6 so that the dimension of protrusion from the body 5b becomes smaller toward the side closer to the cover 5a.
The assembly piece 3 is easily coupled to the assembly projection 6 only by exerting a force so that a is brought closer to the body 5b.

The short-side dimension of the body 5 is such that up to three pieces can be attached to a mounting frame used when constructing an embedded wiring device called a large angle continuous type (see JIS C8304). That is, the longitudinal dimension of the window hole 2a of the mounting frame 2 is set to be equal to the longitudinal dimension of the window hole of the mounting frame used when the embedded wiring device is constructed. The lateral dimension of the body 5 of the switch body 1 shown is approximately one third of the longitudinal dimension of the window 2a of the mounting frame 2. This size is called "one module size" as in the case of the large-angle continuous-use wiring device.

On the other hand, the size of the body 5 in the longitudinal direction is the window hole 2a.
Of the mounting frame 2 on each side surface in the longitudinal direction of the cover 5a that forms the front portion of the body 5 and is substantially equal to the dimension in the lateral direction of the.
A pair of mounting claws 11a and 11b that can be engaged with the device mounting hole 2b provided in a portion surrounding a are provided in a projecting manner, and the mounting claws 11a and 11b engage with the device mounting hole 2b to form a body. 5 is held by the mounting frame 2. On one side wall in the longitudinal direction of the cover 5a, two cut grooves 11c in the front-rear direction whose rear ends are opened are formed, and a portion between the cut grooves 11c has a bending piece 11d having flexibility in the thickness direction. Is formed. In the cover 5a, a void 12 is formed on the back surface side of the bending piece 11d,
By bending the bending piece 11d inside the cover 5a, the mounting claw 11a can be elastically retracted from the side surface of the cover 5a.

Therefore, the mounting claw 11b provided on one side surface in the longitudinal direction of the cover 5a is attached to the instrument mounting hole 2 of the mounting frame 2.
b, the mounting claw 11a is retracted from the side surface of the cover 5a, and the body 5 is inserted into the window hole 2a of the mounting frame 2. 5 is held by the mounting frame 2. Also, the bending piece 1
If the 1d is pushed into the cover 5a, the mounting claw 11
a can be pulled out from the device mounting hole 2b, and the body 5 can be removed from the mounting frame 2. A push projection 11 is provided on the outer surface of the rear end portion of the bending piece 11d to facilitate the pushing of the bending piece 11d.
e is projected. As will be described later, the mounting frame 2 is mounted on a construction surface such as a wall surface like an embedded wiring device,
The rear part of the body 5 is buried in the construction surface.

As described in the conventional example, the internal space of the body 5b is divided into three chambers in the longitudinal direction, and the two compartments are terminal accommodating chambers 13 and 14 for accommodating the terminals, and the central part accommodates the switch mechanism part. The central storage chamber 23 is formed. The terminal housing chamber 13 houses a second terminal plate 15, a quick-connect terminal composed of two lock springs 16 and a release button 17, and the terminal housing chamber 14 houses a first terminal plate 18 and two terminals. A quick-connect terminal including a lock spring 19 and a release button 21 is stored.

The release buttons 17 and 21 are formed by using a thermosetting resin such as urea resin, and the rear portions have release holes 13b and 1 respectively.
4b, the terminal storage chambers 13 and 1 of the body 5b facing each other.
It is stored in 4 respectively. A part of the release buttons 17 and 21 can contact the locking pieces 16a and 19a of the locking springs 16 and 19, and the release buttons 17 and 21 can be released through the release holes 13b and 14b at the tip of a tool such as a flat-blade screwdriver. When the lock pieces 16a and 19a are pressed, the first and second terminal boards 1
The holding force of the electric wire is weakened by pulling it away from the pressure contact pieces 18b, 15b of 8, 15 and the electric wire can be pulled out in this state. Here, the release buttons 17 and 21 correspond to the terminal plates 15 and 18, respectively.
The lock pieces 16a and 19a of the two lock springs 16 and 19 which are arranged so as to straddle the pair of lock springs 16 and 19 corresponding to, respectively, and which correspond to the respective terminal plates 15 and 18 are pressed simultaneously. You can do it. In order to obtain the required performance as the mechanical connection state and the electrical connection state of the electric wire in the quick-connect terminal, the electric wire insertion ports 13a, 14a
It is necessary to make the insertion amount of the electric wire into the cable constant. Therefore, a gauge groove 22 is formed on the rear surface of the body 5b so that it can be easily confirmed whether or not the amount of the insulation coating of the wire to be stripped is constant. When stripping the insulation coating, the end of the wire may be aligned with the gauge groove 22 and the amount of stripping the insulation coating may be confirmed (see FIG. 13).

Next, the structure which is the gist of the present invention will be described. As described above, in the conventional example, the protrusion 73 ′ having a substantially semicircular cross section along the lateral direction of the body 5 is provided at the center of the front surface of the push button handle 32, and A pair of operating ribs 4 projecting from the rear surface
3c abuts the ridge 73 ', and the ridge 73' is pressed by the pair of operating ribs 43c when the piano handle 43 is pushed, whereby the push button handle 32 resists the return spring 37 and the body 5 is pushed. It was supposed to be pushed into.

On the other hand, in the present embodiment, as shown in FIG. 2, near the both ends of the front surface of the push button handle 32 in the longitudinal direction of the body 5, the sectional shape of the body 5 along the lateral direction is approximately half. A pair of circular protrusions 73, 73 are provided so as to project, and as shown in FIG. 3, the area of contact with the protrusions 73, 73 is a flat surface and substantially overlaps the front surface of the push button handle 32. The operating rib 44 having a piano handle 43
It is provided in the center of the back surface. That is, as shown in FIG. 1, when the piano handle 43 is attached to the front side of the body 5, the pair of ridges 73, 73 projecting near both ends of the front surface of the push button handle 32 form the back surface of the piano handle 43. It comes into contact with the operating rib 44 that is provided at the center.

When the piano handle 43 is pushed from the state shown in FIG. 1 (the state where the contact 100 is closed), the push button handle 32 is pushed into the body 5 against the return spring 37, and the push button is pushed. Slide cam 3 with handle 32
3 moves downward in FIG. 1, and the engaging cam body 38 on the left side of the slide cam 33 in the figure abuts on the engaging protrusion 34 on the left side of the reversing handle 31 and pushes the left end portion of the reversing handle 31, thereby reversing the handle 31. Rotates counterclockwise around the front end of the fulcrum protrusion 31b, and the opening / closing element 24 inverts in accordance with the inversion of the inversion spring 30 to open the contact 100. Here, even when the engagement cam body 38 on the left side of the slide cam 31 in the figure is in contact with the engagement protrusion 34 on the left side to apply a turning force to the reversing handle 31, it is provided in the vicinity of both ends of the front surface of the push button handle 32. Since the ridges 73, 73 contact the operating ribs 44 on the rear surface of the piano handle 43, the inclination of the push button handle 32 with respect to the front surface of the body 5 can be suppressed. The same applies to the case where the piano handle 43 is pushed from the state where the contact 100 is opened, and the engaging cam body 38 on the right side of the slide cam 31 in the figure abuts on the engaging protrusion 34 on the right side so that the reversing handle 31 is attached. Even when the turning force is being applied, the protrusions 73, 73 provided near the both ends of the front surface of the push button handle 32 are connected to the piano handle 4.
Since it abuts on the operation ribs 44 on the back surface of the device 3, the tilt of the push button handle 32 with respect to the front face of the body 5 can be suppressed.

Here, as shown in FIG. 4, if a protrusion 74 is provided on the front surface of the push button handle 32 not only in the vicinity of both ends but also in the region between both ends, it abuts against the operating rib 44 of the piano handle 43. Since the area is increased, the pressing force from the piano handle 43 can be stably received. Further, as shown in FIG. 5, a pair of operating ribs 45, 45, which are protrusions along the longitudinal direction of the body 5, may be provided on the back surface of the piano handle 43 so as to be parallel to each other. Ribs 45,4
There is an advantage that the material for manufacturing the piano handle 43 can be reduced by downsizing the 5. Since the protrusion 73, the protrusion 74, and the operating ribs 73, 74 are formed integrally with the push button handle 32 and the piano handle 43, respectively, the push button handle 3
The cost can be reduced by reducing the number of parts as compared with the case where it is formed separately from the 2 or the piano handle 43.

By the way, the above-mentioned mounting frame 2 can be mounted with three switch main bodies 1 each having a module size, so that it will be referred to as a mounting frame 2 for three. That is, on the side pieces on both sides of the window hole 2a of the mounting frame 2,
The mounting claws 11a and 11b of the switch body 1 are locked 2
3 sets of instrument mounting holes 2b, 2b are provided for each set,
Three mounting positions of the switch body 1 can be selected within the window hole 2a. Here, the lateral direction of the switch body 1 is made to coincide with the longitudinal direction of the window hole 2a, and
The three attachment positions when attaching to the attachment frame 2 will be referred to as the upper end position, the center position, and the lower end position, respectively.
In addition, the switch frame 1 with one module size on the mounting frame 2
A piano handle 43 used when one is attached, and the size is such that the opening windows 120a, 130a of the plates (the plate frame 120 and the decorative plate 130) are covered with one as shown in FIG. 1
The individual piano handle 43 will be called. Similarly,
A piano handle 43 used when two switch main bodies 1 each having a module size are attached to the attachment frame 2 for three, and the opening windows 120a of the plate attached to each switch main body 1 as shown in FIG. A piano handle 43 having a size of covering two pieces 130a will be referred to as a piano handle 43 for two pieces, and further, a switch body 1 having a module size of two pieces and a mounting frame 2 for three pieces.
A piano handle 43 used when individually mounting,
As shown in FIG. 8, the piano handle 43 attached to each switch body 1 and having a size such that the opening windows 120a and 130a of the plate are covered with three pieces will be referred to as a piano handle 43 for three pieces.

The relationship between the above-mentioned three types of piano handles 43 in the vertical direction (short side direction of the switch body 1) is as follows.
(Vertical dimension of the piano handle 43 for one) ≈ (vertical dimension of the piano handle 43 for two) × 2≈ (vertical dimension of the piano handle 43 for three) × 3. Further, as described above, the opening windows 120a and 130a of the plate are longer and wider than the window hole 2a of the mounting frame 2.
Since the switch body 1 is inserted and attached to a, the vertical dimensions of the three piano handles 43 are larger than the vertical dimensions of the switch body 1. That is, each of the piano handles 43 has a larger operation surface area than the push button handle 32, and therefore, the operation of pushing the piano handle 43 is easier than the push operation of the push button handle 32.

Install the switch body 1 in the window hole 2a of the mounting frame 2.
The case where only one piece is attached is shown in FIG. As mentioned above,
Two bearings 191 (see FIG. 15) provided at one end on the back surface of the piano handle 43 are provided near the central portion in the vertical direction so as to correspond to the pair of shafts 192 provided on the switch body 1. . However, the bearing spring 191b attached to each bearing portion 191 of the piano handle 43 is formed by one continuous member. The piano handle 43 has two shaft parts 192 of the switch body 1 fitted into the two bearing parts 191 of the piano handle 43, whereby the vertical center of the switch body 1 and one piano handle 43.
It is attached so that the center of the vertical direction of the.
Further, at the other end of the back surface of the piano handle 43 for one piece, two retaining pieces 43a are provided in the vicinity of the central portion in the vertical direction, and each retaining piece 43a is provided in the upper and lower insertion holes 5 of the switch body 1.
Inserted in 4.

On the other end of the surface of the piano handle 43, a push position indicating projection 114 is provided at a central position in the vertical direction, and the end portion on which the pushing force is applied to the piano handle 43 is located on the push position indicating protrusion 114 side. Is shown. Further, on the surface of the piano handle 43, a striped makeup line 115 composed of a large number of parallel straight lines in the left-right direction is formed.

By the way, when the two switch bodies 1 are attached to the attachment windows 2a of the attachment frame 2, the switch bodies 1 are attached to the upper end position and the lower end position, respectively, as shown in FIG. Two piano handles 43 are attached to each switch body 1. The two piano handles 43, like the three piano handles 43, are provided with two bearing portions 191 in the central portion in the vertical direction, and each switch body is attached to the attachment frame 2 at the upper end position and the lower end position. The vertical center position of 1 and the vertical center position of each piano handle 2 are attached so as to coincide with each other. As a result, two piano handles 4
Also in 3, the same one can be commonly used without distinguishing between the upper end position and the lower end position. The two piano handles 43 are different in vertical dimension from the one piano handle 43, but other configurations are the same as the one piano handle 43.

When the three switch bodies 1 are mounted in the mounting windows 2a of the mounting frame 2, the switch bodies 1 are mounted at the upper end position, the center position and the lower end position, respectively, as shown in FIG. The three piano handles 43 for each are attached to 1. 4 piano handles for 3
Four bearings 191 are provided at one end of the back surface of the switch 3 at regular intervals corresponding to the shaft 192 of the switch body 1. Further, the bearing spring bodies 191b corresponding to the upper two bearing portions 191 and the lower two bearing portions 191 are integrally formed. That is, the bearing spring body 191b is realized by two members for the four bearing portions 191. Further, in the three piano handles 43, the retaining pieces 43a are provided near the center of the piano handle 43 in the vertical direction.

When three switch bodies 1 are arranged side by side on the mounting frame 2, the piano handle 43 attached to the switch body 1 at the central position fits the shaft portion 192 of the switch body 1 into the two bearing portions 191 at the center. Install with. That is,
With respect to the switch main body 1 at the center position, the vertical center of the switch main body 1 and the vertical center of the piano handle 43 coincide. Also, the retaining piece 43 of the piano handle 43
The a is inserted into the insertion hole 54 at the center of the switch body 1.
On the other hand, the piano handle 43 attached to the switch body 1 at the upper end position is attached by fitting the shaft portion 192 of the switch body 1 into the two lower bearing portions 191. That is, with respect to the upper end position, the vertical center of the piano handle 43 is displaced upward from the vertical center of the switch body 1, and the retaining piece 43a of the piano handle 43 is inserted above the switch body 1. It is inserted into the hole 54. Further, the piano handle 43 attached to the switch body 1 at the lower end position is attached by fitting the shaft portion 192 of the switch body 1 into the upper two bearing portions 191. That is, with respect to the lower end position, the vertical center of the piano handle 43 is displaced downward from the vertical center of the switch body 1, and the retaining piece 43a of the piano handle 43 is inserted below the switch body 1. It is inserted into the hole 54.

As shown in FIG. 6, the plate frame 120 mounted on the front side of the mounting frame 2 by the mounting screws 123 is a molded product formed of a synthetic resin such as ABS resin into a rectangular frame shape. A screw insertion hole 121 through which a mounting screw 123 is inserted is provided in each of the piece and the lower piece. Further, each of the left and right pieces of the plate frame 120 is provided with three locking holes 122 into which locking pieces (not shown) of the decorative plate 130 are inserted and locked.
Further, plate holding holes 125 for attaching metal simple fireproof plates (not shown) are also provided at the four corners of the plate frame 120. A step portion 124 is formed around the entire circumference of the plate frame 120.

The decorative plate 130 coupled to the plate frame 120 is formed of a synthetic resin such as ABS resin into a rectangular frame shape like the plate frame 120. Further, on the back surface of the decorative plate 130, six locking pieces for protrudingly connecting to the plate frame 120 are provided. Both the plate frame 120 and the decorative plate 130 have almost no rounded corners, which facilitates the manufacture of the mold as compared with the case where the rounded portions are formed.

When the plate frame 120 is attached to the attachment frame 2 to which the switch body 1 is attached by the attaching screws 123, the decorative plate 130 is further coupled to the plate frame 120, and the piano handle 43 is attached to the switch body 1, the plate frame 120 is attached. And makeup plate 130
A part of the piano handle 43 can be made to project to the front of the plate through the opening windows 120a and 130a at the center of the piano handle 43, and the piano handle 43 can be pushed in this state. Further, since the decorative plate 130 is only engaged with the plate frame 120 by the locking piece, the tip of a tool such as a flat-blade screwdriver is inserted into the removal groove 126 provided at the lower end of the plate frame 120. Then, by applying a force to separate the decorative plate 130 from the plate frame 120, the decorative plate 130 can be removed from the plate frame 120. Therefore, when the decorative plate 130 is attached, the mounting screw 1 is attached to the surface.
It is possible to remove the decorative plate 130 relatively easily at the time of maintenance while finishing the appearance by not exposing the 23.

[0048]

According to the invention of claim 1, a switch body having a push button handle to be pushed on the front surface, and a switch mechanism portion for opening and closing a contact each time the push button handle is pushed is housed in the body, and It has a piano handle arranged on the front side facing the push button handle, one end of which is pivotally attached to the body and the back side is in contact with the push button handle, and the switch mechanism part is swingably held on the body. The reversing handle, the reversing mechanism that alternately swings the reversing handle in the opposite direction each time the push button handle is pressed, and the reversing mechanism that is rotatably housed in the body and opens and closes the contacts according to the swinging of the reversing handle. An opening and closing
It has a reversing handle and a reversing spring that connects the opening and closing member and rotates the opening and closing member in reverse with the swinging of the reversing handle. The reversing mechanism part is slidable along the back surface of the push button handle and moves the push button handle. A slide cam movably arranged in a direction, a return spring for elastically urging the push button handle toward the front side of the body, and a slide cam provided at both ends of the reversing handle in the swinging direction. A piano handle type switch having a hooking cam body and a hooking protrusion that comes into contact with and separates from each other, at least near both ends of the front surface of the push button handle along the swinging direction of the reversing handle. Since the abutting means for abutting is provided, even when the one engaging cam body of the slide cam abuts the one engaging protrusion and the turning force is applied to the reversing handle, the push button Since the abutment means provided near both end portions of the Le front abuts against the rear surface of the piano handle, there is an effect that it is possible to suppress the inclination of the push button handle to Utsuwatai front.

According to a second aspect of the present invention, in the first aspect of the present invention, the abutting means comprises a pair of ridges projecting near both ends of the front surface of the push button handle. As compared with the case where the push button handle is provided on the entire front surface, the thickness of the push button handle can be reduced, and the material for manufacturing the push button handle can be reduced.

According to the invention of claim 3, in the invention of claim 1 or 2, the contact means is formed integrally with the push button handle, so that the contact means is formed separately from the push button handle. By reducing the number of parts, the cost can be reduced.

The invention of claim 4 relates to claim 1 or 2 or 3.
In the invention described above, since the operation rib having a flat surface for contacting the contact means is provided on the back surface of the piano handle, the contact area with the contact means is increased by the operation rib, and the operation rib from the piano handle is increased. There is an effect that the pushing force can be stably received.

The invention of claim 5 is the invention of claim 1 or 2 or 3.
In the invention described above, since the operation rib formed of the ridge is projectingly provided at the portion of the back surface of the piano handle that comes into contact with the abutting means, the material for manufacturing the piano handle is reduced by downsizing the operation rib. The effect is that you can do it.

According to the invention of claim 6, in the invention of claim 4 or 5, the operating rib is formed integrally with the piano handle, so that the operating rib is formed separately from the piano handle. By reducing the number of parts, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the switch body of the above.

FIG. 3 is a perspective view of the piano handle seen from the back side.

FIG. 4 is a perspective view of a switch body having another configuration of the above.

FIG. 5 is a perspective view of another piano handle of the above, viewed from the back side.

FIG. 6 is an exploded perspective view of the above-described use mode in which one piano handle is used.

FIG. 7 is an exploded perspective view showing a usage pattern in which two piano handles are used in the same as above.

FIG. 8 is an exploded perspective view of the above-described use mode in which three piano handles are used.

FIG. 9 is an exploded perspective view showing a conventional example.

FIG. 10 is a perspective view of the switch body of the above.

FIG. 11 is a front view of the switch body of the above.

FIG. 12 is a side view of the switch body in the above.

FIG. 13 is a rear view of the switch body of the above.

FIG. 14 is a rear view of the piano handle of the above.

FIG. 15 is a view showing the vicinity of the shaft portion of the same, (a) is a sectional view before the piano handle is attached, and (b) is a sectional view after the piano handle is attached.

FIG. 16 is an explanatory diagram of an operation of the above.

FIG. 17 is an explanatory diagram of the same operation as above.

FIG. 18 is an operation explanatory diagram of the above.

FIG. 19 is an operation explanatory diagram of the above.

FIG. 20 is an operation explanatory diagram of the above.

[Explanation of symbols]

1 Switch body 5 body 31 inverted handle 32 push button handle 33 slide cam 34 Hook protrusion 37 Return spring 38 Hook cam body 43 piano handle 44 Operation rib 73 Ridge

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Manabu Yano             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company F-term (reference) 5G019 CP25 CY05 CY13 CY19 JJ02                       MX04 SK20

Claims (6)

[Claims] 1. A switch body in which a push button handle to be pushed is provided on the front surface, and a switch mechanism section for opening and closing a contact each time the push button handle is pushed is housed in a body, and the front side of the body faces the push button handle. And a piano handle whose one end is pivotally attached to the body and the back surface of which is in contact with the push button handle, and the switch mechanism portion includes a reversing handle which is swingably held by the body and a push button. A reversing mechanism that alternately swings the reversing handle in the opposite direction each time the handle is pressed, a switch that is rotatably housed in the body and that opens and closes contacts according to the swinging of the reversing handle, and a reversing handle. The reversing mechanism has a reversing spring that connects the opening and closing and rotates the opening and closing with the swing of the reversing handle, and the reversing mechanism is slidable along the back surface of the push button handle and moves in the moving direction of the push button handle. freely The slide cam, the return spring for elastically urging the push button handle toward the front side of the body, and the engagement cam body provided at both ends of the slide cam in the swing direction of the reversing handle. And a hooking protrusion that comes into contact with and detaches from the piano handle, wherein the abutting contact is made with the back face of the piano handle at least near both ends of the front face of the push button handle along the swing direction of the reversing handle. A piano handle type switch characterized in that a means is provided. 2. The piano handle type switch according to claim 1, wherein the abutting means comprises a pair of ridges projecting near both ends of the front surface of the push button handle. 3. The piano handle type switch according to claim 1, wherein the contact means is formed integrally with the push button handle. 4. The piano handle type switch according to claim 1, wherein an operation rib having a flat surface at a portion contacting with the contact means is provided on a back surface of the piano handle. 5. The piano handle type switch according to claim 1, wherein an operation rib formed of a ridge is provided on a portion of the back surface of the piano handle that abuts the abutting means. 6. The piano handle type switch according to claim 4, wherein the operating rib is formed integrally with the piano handle.