JP3020254B2 - Mounting structure of wiring equipment to mounting frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a structure in which a wiring device is fitted and mounted in a mounting frame.

[Related Art] Conventionally, when a wiring device is mounted on a rectangular mounting frame, when the mounting frame is made of metal, it is mounted by caulking.

[Problems to be Solved by the Invention] However, when mounting by caulking, a tool such as a screwdriver is required, and there is a problem that a force is required for mounting. In addition, removal is difficult due to mounting by caulking.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and a purpose thereof is to easily attach a wiring device body with one touch even if a mounting frame is formed of a strong material such as metal. It is an object of the present invention to provide a structure for attaching a wiring device to a mounting frame, which can be easily removed.

[Means for Solving the Problems] In order to achieve the above object, a mounting structure of the wiring device of the present invention to a mounting frame has an elongated window hole 6 provided with three device mounting portions in a longitudinal direction at an intermediate portion. The mounting frame 2 and the body of the wiring device A, each of which has an outer dimension in the short side direction formed to be substantially 1/3 of the longitudinal direction of the window 6 of the mounting frame 2 and is mounted on the mounting portion of the mounting frame 2. The body is composed of a body 5a having an accommodating portion for accommodating the quick connection terminal and a cover 5b attached to an opening of the body 5a, and is made of resin having elasticity of the body of the wiring device A. The fixed-side locking projection 11a is attached to one end of the cover 5b
At the other end of the cover 5b, there is provided an elastic piece 53 which is separated by making cuts 54 on both sides, and a movable locking projection 11b is provided on the outer surface of the elastic piece 53. The fixed locking protrusions 11a and the movable locking protrusions 11b are respectively locked in locking holes 8 provided in both side pieces 2b of the mounting frame 2 at the respective portions.

It is also preferable that the wiring device A is a switch 5.

[Operation] When the body of the wiring device A is mounted, the fixed side locking projection 11a is locked in the locking hole 8 of the one side piece 2b of the mounting frame 2, and the elastic piece 5
3 can be deformed to lock the movable locking protrusion 11b in the locking hole 8 of the other side piece 2b to mount the body of the wiring device A. The mounting frame 2 is made of iron, stainless steel, or the like. Even if it is formed of a strong material (metal), it can be easily attached by utilizing elasticity.

[Embodiment] In the case of the present embodiment, a pushbutton switch 5 is used as the wiring device A, and the pushbutton switch 5 is attached to the attachment frame 2 to explain the embodiment.

The push button switch 5 shown in FIG. 3 is a body 5a made of synthetic resin.
And a cover 5b made of synthetic resin to form a body, and a body locking leg hanging down from a pair of opposite sides of the cover 5b.
The body engaging hole 10a provided in the body 10 is engaged with the engaging protrusion 9 of the body 5a by being engaged. The cover 5b is made of an elastic thermoplastic synthetic resin such as glass fiber reinforced polybutylene terephthalate.

As shown in FIG. 1 (a), the mounting frame 2 is formed in a rectangular shape with a strong material (metal) such as iron or stainless steel. Each of the locking holes 8 is provided. In the case of the present embodiment, three sets of a pair of locking holes 8 are provided on each side piece 2b, and three mounting portions are provided on the mounting frame 2. At one end of the cover 5b, a pair of fixed side locking projections 11a are provided so as to correspond to the pair of locking holes 8, and at the other end of the cover 5b, cutouts 54 are formed on both sides to release elasticity. A piece 53 is provided, and a pair of movable-side locking projections 11b protrude from the outer surface of the elastic piece 53. An operation projection 55 is provided on an outer surface of a lower portion of the elastic piece 53. On the back side of the elastic piece 53, a space 12 for bending the elastic piece 53 is provided, and a stopper 56 for preventing the elastic piece 53 from bending more than necessary is provided. Reference numeral 57 in FIG. 1 (b) denotes a slope for allowing the mounting frame 2 to smoothly enter in a state shown in FIG. 2 (b), which will be described later, and reference numeral 58 denotes an elastic piece 53 in a state shown in FIG. It is a slope surface for making it easy to bend. Cover 5b
A locking projection 70 is provided on one end side of the upper part of the boss, and a projection 71 for a fulcrum is provided slightly inside the projection 70 for locking. Hole 72 at the end
The opening edge of the hole 72 is a locking edge 72a.

Connection terminal housings 13 and 14 are formed on both sides of the body 5a, and one connection terminal housing 13 has a common terminal plate 15, a locking spring 16,
A quick connection terminal comprising a release button 17 is housed, and the other connection terminal housing part 14 has a terminal plate 18, a locking spring 19, which constitutes a first connection terminal part, and a terminal which constitutes a second connection terminal part. The plate 20 and the lock spring 21 are housed therein, and a common release button 22 is housed in the first and second connection terminals.

The terminal plate 18 is provided with an extension piece 18a.
Reference numeral 8a extends over the partition wall 14a and extends into the central storage portion 23, and further close to the partition wall 14a side. The extension piece 18a is provided with a fixed contact 25a.

The terminal plate 20 is located along the inner wall of the body 5a.
The fixed contact 25b corresponding to the fixed contact 25a is provided at the front end of the bent piece 20a.

The opening / closing body 24 is formed of a conductive plate,
The projection 28 provided at the lower end of both ends is
It is rotatable around the lower part of the V-shaped recess 27 with the lower end edge being in contact with the support plate 15a while being fitted into the V-shaped recess 27 provided on the side wall of the V-shaped recess 27. Then, the movable contact 29 provided on both upper surfaces of the opening / closing body 24 contacts and separates from the fixed contacts 25a and 25b according to the rotation, and the common connection terminal portion and the first or second connection terminal portion Between the on and off.

The coil spring 30 drives the opening / closing body 24 in reverse.
And a reversing mechanism including a reversing handle 31, a push button handle 32, a slide cam 33, and the like.

The lower portion of the coil spring 30 is locked by a spring seat 24a provided at the upper edge of the horizontal piece of the opening / closing body 24, and the upper portion is
The opening / closing member 24 is inserted into a cylindrical portion 31a integrally protruding from the lower portion of the opening 1 to invert the opening / closing body 24 in accordance with the movement of the inversion handle 31 in both directions.

The reversing handle 31 is inserted into the recess 51 from below into a hole 52 opened at the bottom of the recess 51 of the cover 5b, and the inverted triangular shaft 31c provided on both sides of the lower tubular portion 31a of the reversing handle 31 is connected to the cover 5b. Engagement projections 34, 34 that engage with the slide cam 33 are protrudingly provided on both sides of a rectangular parallelepiped portion 31 b on the upper part of the reversing handle 31 so as to be rotatably supported on a bearing 50 on the inner wall.

The push button handle 32 is housed in the recess 51 so as to be able to move up and down by locking the locking projections 36 and 36 in the vertical locking grooves 35 formed on the inner wall surfaces on both sides of the recess 51 of the cover 5b, Flat 37
A return spring 37, which is formed by integrally extending two return spring pieces 37a, 37a extending downward from b, is provided on the lower surface of the push button handle 32 in a hole 37d formed in the flat piece 37b. By inserting a projection (not shown), it is attached to the lower surface of the push button handle 32, and is always urged upward by elastically contacting the tip of the return spring piece 37 a, 37 a of the return spring 37 with the bottom surface of the recess 51.

The slide cam 33 is formed in a substantially rectangular shape by a thermoplastic resin having a high elasticity such as polyacetal, and a hooking cam body 38 corresponding to the hooking projection 34 of the reversing handle 31 projects on the lower surface of the opposing side portion. And a pair of spring pieces 33a, 33a integrally protruding in a C-shape at the center of another side portion,
A projection 32A formed on the lower surface of the push button handle 32 is inserted between the distal ends of the spring pieces 33a, 33a, and the slide cam 33 is slidably mounted on the lower surface of the push button handle 32.
A return force in the anti-sliding direction is given by the elasticity of the wires 33a.

The push button switch 5 configured as described above is mounted such that the cover 5b is fitted into the window hole 6 of the mounting frame 2 from below as shown in FIG. In other words, as shown in FIG. 2A, the lower end of one side piece 2b of the mounting frame 2 is in contact with the upper surface of the periphery of the cover 5b, and the contact point is used as a fulcrum in FIG. 2B.
(C) The push button switch 5 is mounted on the mounting frame 2 by rotating as shown in (d). When the fixed side locking projection 11a is locked in the locking hole 8 in the state of FIG. 2 (a) and rotated as shown in FIGS. 2 (b) and (c), FIG. 2 (c) When the elastic piece 53 is bent inward as shown in (2) and is rotated to the position shown in FIG. 2 (d), the elastic piece 53 returns and the movable side locking projection 11b is locked in the locking hole 8. . 2 (c), 2 (b) and 2 (a), the operating projection 55 is pushed to release the movable locking projection 11b from the locking hole 8.
By turning the push button switch 5 in this order, the push button switch 5 can be removed from the mounting frame 2. The elastic piece 53 bends inward in the space 12, but the stopper 56 prevents the elastic piece 53 from bending more than necessary. The push button switch 5 attached to the mounting frame 2 by locking the fixed-side locking projection 11a and the movable-side locking projection 11b into the locking hole 8 connects the push button handle 32 to the mounting frame 2.
From the window hole 6 of FIG.

The push button switch 5 attached to the attachment frame 2 in this manner is provided with a piano handle 43. This piano handle
Numeral 43 is as shown in FIGS. 1 (a) and 1 (c), in which a locking foot 43a provided on one side edge of the piano handle 43 is locked to a locking projection 70 of the cover 5b, and a fulcrum projection is formed. With the lower surface of the piano handle 43 abutting against the 71, the locking foot 43b on the other side edge of the piano handle 43 is vertically movably inserted into the hole 72 at the other end of the cover 5b, and the locking foot 43b is engaged. The stop portion is locked to the locking edge 72a of the hole 72. And the locking foot 43a and the locking foot 43b
Is released, the piano handle 43 can be removed. With the piano handle 43 attached as described above, the push button handle 32 can be pushed and driven by pushing and rotating the piano handle 43. In this state, the semicircular projection 73 on the upper surface of the push button handle 32 contacts the lower surface of the piano handle 43. Here, the fulcrum projection 71 may be provided on the lower surface of the piano handle 43 instead of the fulcrum projection 71 provided on the lower surface of the cover 5b.

Next, the operation of the piano handle switch of the present invention will be described with reference to FIGS.

First, in the state shown in FIG.
When the piano handle is omitted in the figure, the push button handle 32 is pushed down against the spring piece 37a, and the slide cam 33 is lowered by pushing down the push button handle 32, and one of the slide cams 33 (FIG. 5) The upper side of the reaction handle 31 in a state where the base of the inner inclined surface of the engaging cam body 38 at the end at the left end in (b) is inclined (FIG. 5 (b)
(Left side in FIG. 6) (the state shown in FIG. 6 (b)), and when the push button handle 32 is further pressed, the hooking projection 34 is pushed down along the inner inclined surface of the hooking cam body 38, and the reversing handle 31 is moved to the second position. As shown in FIG. 7 (b) to FIG. 9 (b), the rotation is reversed. By the way, when one engaging cam body 38 of the slide cam 33 slides while engaging with one engaging protrusion 34 of the reversing handle 31, the other engaging cam body 38 is rotated before the reversing handle 31 that rotates reversibly becomes horizontal. Move to the other engaging projection 34
The length between the pair of engaging cam bodies 38 and the length between the pair of engaging projections 34 are set so as to be positioned inside the pair. With the above-described configuration, the hooking projection 34 is turned along with the inversion of the inversion handle 31 by pushing down the push button handle 32, as shown in FIGS. 5 (b), 6 (b) → 7 (b) → 8. (B) →
As shown in FIG. 9 (b), it rotates counterclockwise, and with this rotation, the engaging cam body 38 is opposed to the spring piece 33a by the engaging projection 34, and FIGS. 5 (a) and 6 ( a) → FIG. 7 (a) → 8
Fig. 9 (a) → Slide to the left as shown in Fig. 9 (a), and in the course of inversion of the inversion handle 32, as shown in Fig. 8 (a), the inversion handle 32 rotates to a position beyond the horizontal. Even if the other engaging projection 34 rises, the sliding cam 33 slides to the left, so that the engaging cam body 38 at the other end (right side in FIG. 7B) is larger than the right engaging projection 34. Since it is located on the left side, it does not hinder the inversion rotation of the inversion handle 31. Here, if an inner inclined surface is formed inside the engaging projection 34 as shown in FIG. 15, the engaging cam body positioned inside when the engaging projection 34
38 can escape on the inner slope to prevent interference. Further, when the reversing handle 31 is rotated in reverse by pushing down the push button handle 32 as described above, the spring piece 33a is used.
The reversing handle 31 and the slide cam 33 are inverted by reversing the reversing handle 31 while sliding the slide cam 33 against
Are capable of smoothly turning the reversing handle 31 in reverse without receiving sliding friction resistance.

When the reversing handle 31 is reversingly rotated as described above, the coil spring 30 reciprocates and swings, and the opening / closing body 24 is reversed,
The movable contact 29 is separated from the one fixed contact 25a with which the movable contact 29 is in contact, and comes into contact with the other fixed contact 25b.

When the pressing force of the piano handle 43 is released after this inversion, the push button handle 32 is pushed up by the spring piece 37a of the return spring 37 as shown in FIG. 10 (b), and the piano handle 43 also returns to the original state. . At the same time, the slide cover 33 slides and returns to the central portion by the spring force of the spring piece 33a, as shown in FIG. 10 (a). Piano handle 43 in this state
By pressing down, the opening / closing body 24 can be turned over by the same operation as described above. After the inversion, if the pressing force of the piano handle 43 is released, the state returns to the state shown in FIG.

Incidentally, in the embodiment shown in FIG. 1, the mounting frame 2 has dimensions (three modules) for three standardized wiring devices.
In the embodiment shown in FIG. 11, one push button switch 5 of one module is mounted on the mounting frame 2 shown in FIG. 1, and one three-module mounting frame 2 is mounted on the mounting frame 2 of three modules. A large-sized piano handle 43 is attached, and one large push-button switch 5 is operated by the large piano handle 43. As shown in FIG. Two piano handles 43 having a size of 1.5 modules may be mounted, or three push button switches 5 may be mounted on the mounting frame 2 and three piano handles 43 may be mounted as shown in FIG. Is also good. In this embodiment, further,
As shown in FIG. 13, when the central piano handle 43 is pushed, the piano handles 43 on both sides can be pushed at the same time, and the piano handles 43 on both sides may be pushed alone. In addition, as shown in FIG.
And two piano handles 43 with a size of 1.5 modules
, And a two-module piano handle 43 may be attached next to it. 14 (a) and 14 (b)
In (c), K is a decorative frame, which covers the mounting frame 2.

[Effects of the Invention] As described above, the present invention provides a mounting frame having an elongated window hole provided with three instrument mounting portions in the longitudinal direction at an intermediate portion, and a window hole having an outer dimension in the short direction. Is formed in approximately 1/3 of the longitudinal direction of the wiring frame, and the wiring device is attached to the device mounting portion of the mounting frame. Of the wiring equipment of the specification, or the specification of mounting two wiring equipment on the mounting frame by attaching the wiring equipment to the two equipment mounting part,
By attaching wiring devices to the three device mounting portions respectively, three wiring devices can be mounted on the mounting frame, and a common mounting frame can support the above three specifications. A fixed-side locking projection is provided at one end of a cover made of a resin having elasticity of the body of the instrument, and an elastic piece which is cut and released on both sides is provided at the other end of the cover. The movable side locking projections are provided on the outer surface of the mounting frame, and the fixed side locking projections and the movable side locking projections are respectively locked in the locking holes provided on both sides of the mounting frame at the fixture mounting portion of the mounting frame. Therefore, the fixed side locking projection of one end of the body is locked in the locking hole of one side piece of the mounting frame, the elastic piece is deformed, and the other end of the body is locked in the locking hole of the other side piece. The movable side locking projection can be locked to attach the body of the wiring device, and the mounting frame can be made of iron, stainless steel, etc. Even if it is made of a strong material (metal), it can be easily attached by utilizing the elasticity of the body side of the wiring equipment, and the wiring equipment body is attached to a plurality of equipment mounting parts But one wiring equipment body
It can be attached one by one, so that the body of the wiring device can be easily attached.Furthermore, only one side bends the elastic piece to lock the movable side locking projection in the locking hole. Therefore, even if it is mounted using elasticity, it can be firmly mounted and has no problem for long-term use. Also, as in the embodiment, when a pair of fixed-side locking projections or a pair of movable-side locking projections and a pair of locking holes are locked and mounted at both ends of the wiring device switch, respectively, The body can be attached more stably.

[Brief description of the drawings]

1 (a) is an exploded perspective view of one embodiment of the present invention, FIG. 1 (b) is a perspective view enlarging an elastic piece portion of the same, and FIG. 1 (c) is a rear view of the same piano handle. Perspective view,
2 (a), (b), (c), and (d) are cross-sectional views for explaining a state in which the same pushbutton switch is mounted on a mounting frame, FIG. 3 is an exploded perspective view of the same pushbutton switch, and FIG. (B) is a cross-sectional view of the same state after the piano handle is depressed, and a cross-sectional view of the depressed state, FIGS. 5 (a) (b), 6 (a) (b), and FIG. (A) (b), FIG. 8 (a)
(B), FIGS. 9 (a) and (b), and FIGS. 10 (a) and (b) are explanatory diagrams showing an operation sequence showing the relationship between the slide cam and the projection, and an explanatory diagram showing the entire operation sequence, respectively. 11 (a) (b), 12 (a) (b), 13 (a)
(B) is an exploded view and a plan view of each embodiment showing the number of push-button switches and the number of piano handles attached to the mounting frame, respectively. FIGS. 14 (a) and (b) show examples in which a decorative frame is mounted. FIG. 14 (c) is a plan view and a side view of the embodiment, FIG. 14 (c) is a plan view of another embodiment, and FIG. 15 is an explanatory view of the embodiment in which the inside of the engaging projection is inclined. An appliance switch, 2 is a mounting frame, 2b is a side piece, 5b is a cover, 11a is a fixed locking protrusion, 11b is a movable locking protrusion, and 53 is an elastic piece.

Continuation of the front page (56) References JP-A-1-197924 (JP, A) JP-A-61-173428 (JP, A) JP-A-54-137172 (JP, U) JP-A-1-146429 (JP) , U)

Claims (2)

(57) [Claims] 1. A mounting frame having an elongated window hole provided with three instrument mounting portions in a longitudinal direction at an intermediate portion, and an outer dimension in a short direction is approximately 1/1/1 of a longitudinal direction of a window hole of the mounting frame. 3 and a body of a wiring device to be mounted on the device mounting portion of the mounting frame, the body being attached to a body having a storage portion for storing the quick-connecting terminal and an opening of the body. A fixed locking projection is provided at one end of the cover made of a resin having elasticity of the body of the wiring device, and a cut is made at both ends at the other end of the cover to release the elasticity. The elastic piece is provided with a movable locking projection on the outer surface of the elastic piece, and the fixed locking projection and the movable locking section are respectively provided in locking holes provided on both sides of the mounting frame at the fixture mounting portion of the mounting frame. A mounting structure of a wiring device to a mounting frame, wherein the mounting protrusion is locked. 2. The structure according to claim 1, wherein the wiring device is a switch.