JPH06310192A - Terminal device and wiring accessories - Google Patents

Abstract

PURPOSE:To keep the cover section of a terminal cover open, and thereby enhance workability such as electrical wire connection to a terminal section. CONSTITUTION:A mixed section 71 and a cover section 72 are provided, rotatable connection is made through a hinge section 79, and connection is made by a closing hold section 80. The closing hold section 80 is in a nonlinear shape in cross section, and allows respective connecting sections 83 and 84 at both the ends of the aforesaid hold section to be rotatably connected to the fixed end section 71 and the cover section 72 respectively. In the midway of rotation of the cover section 72, the hinge section 79 is linearly lined up with the connecting sections 83 and 84, so that the closing hold section 80 is turned out to be elastically in a widely open condition. Under the aforesaid widely open condition, the closing hold section 80 is in a neutral position for rotatably energizing the cover section 72 to the open and close directions. Therefore, when the cover section 72 is rotated to the open section so as to let the cover section pass through the neutral point, it is possible to energize the cover section 72 to the open direction by the elastic force of the closing hold section 80 so as to keep it in an open condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device and a wiring device equipped with the terminal device.

[0002]

2. Description of the Related Art Conventionally, as a wiring device, in a push button switch installed on a wall surface such as an entrance of a house, for example, a push button is provided on a front surface of a case and a terminal portion operated by the push button is provided on a back surface of the case. Since there is a stipulation that this terminal part should not be exposed for reasons such as electric shock prevention,
It is covered with a terminal cover.

A conventional terminal cover is made of resin and integrally formed with a fixed portion fixed to a case and a cover portion which is rotatable via a hinge portion to the fixed portion. By doing so, it is possible to make a closed state that covers the terminal portion and an open state that exposes the terminal portion.

When connecting the electric wire guided to the place where the switch is installed to the terminal portion, the electric wire is connected to the terminal portion while the cover portion is elastically rotated through the hinge portion and opened. After the connection, the cover is rotated to close the terminal so as to cover the terminal.

[0005]

However, in the prior art, when the electric wire is connected to the terminal portion, the cover portion is elastically rotated through the hinge portion to open, so that the opened cover portion is not provided. Elasticity always acts in the return direction that covers the terminal portion via the hinge portion. Therefore, even if the cover portion is opened, the elasticity of the hinge portion causes the cover portion to return to the direction in which the terminal portion is covered, and the cover portion interferes with connecting the electric wire to the terminal portion. .

The present invention has been made in view of the above circumstances, and is provided with a terminal device which maintains the open state of the cover part and improves workability such as connecting an electric wire to the terminal part, and the terminal device. The purpose is to provide a wiring device.

[0007]

The invention according to claim 1 is
A base having a terminal portion and a terminal cover for covering the terminal portion of the base are provided, and the terminal cover is provided with a fixing portion fixed to the base, and the fixing portion is rotatably covered via a hinge portion. In the terminal device, the terminal cover is provided with a locking claw part that is engaged with the claw receiving part of the base in a closed state to cover the terminal part. An opening / closing holding portion is provided which is rotatably connected to the fixed portion and the cover portion, and the hinge portion and both connecting portions are linearly arranged in the middle of the rotation region of the cover portion to elastically open. It is a thing.

According to a second aspect of the present invention, there is provided a base having a terminal portion and a terminal cover for covering the terminal portion of the base. The terminal cover is provided with a fixing portion fixed to the base and the fixing portion. In the terminal device, the cover part is rotatably provided via the hinge part, and the cover part is provided with a locking claw part that engages with the claw receiving part of the base in a closed state to cover the terminal part. In the rotation area of the cover portion, a stopper portion is provided so that the cover portion can elastically ride over.

According to a third aspect of the present invention, there is provided the terminal device according to the first or second aspect of the present invention and an operation portion provided corresponding to the terminal portion.

[0010]

According to the first aspect of the present invention, when the cover part in the closed state of the terminal cover is rotated in the opening direction, the hinge part and both connecting parts are linearly arranged in the middle of the rotation range of the cover part to open and close. The holding portion is elastically expanded. This state is a neutral point at which the open / close holding unit urges the cover unit to rotate in the opening direction and the closing direction. Therefore, the cover portion is rotated and biased in the opening direction by the elastic force of the opening / closing holding portion by passing the neutral point in the opening direction, and the open state is maintained.

According to the second aspect of the present invention, when the cover portion in the closed state of the terminal cover is rotated in the opening direction, the cover portion abuts on the stopper portion, but by further rotating the cover portion in the opening direction. The cover elastically rides over the stopper. Therefore, when the cover portion passes through the stopper portion in the opening direction, rotation of the cover portion in the closing direction is restricted by the stopper portion, and the open state is maintained.

According to the third aspect of the present invention, by providing the terminal device according to the first aspect or the second aspect, there is provided a wiring device which facilitates connection work to the terminal portion.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of one embodiment of the present invention will be described below with reference to FIGS.

5 to 7 show a push button switch as a wiring device. The push button switch includes a support 1 installed in advance at a switch installation place, a plate 2 as a base attached to the support 1, and a plate 2 thereof. It is composed of a packing 3 attached to, a push button 4 as an operating portion, a switch unit 5, a back cover 6 and a terminal cover 7 which form a part of the base.

The support 1 is made of resin and has a vertically long frame shape. An opening 11 is formed in the center of the support 1. A fixing hole 12 and a plate 2 are fixed to upper and lower edges of the opening 11 by screwing to a switch mounting surface. The mounting portions 13 for mounting are respectively formed.

The plate 2 is made of resin and has a flange portion 21 formed around the periphery of the support 1 at its peripheral portion, and mounting holes 22 screwed to the mounting portion 13 of the support 1 at the upper and lower portions of the front surface. The mounting boss 23 that it has is formed. A bulge 24 that bulges toward the front is formed in the center of the front face.
A circular window hole 25 is formed on the lower side of 24. Bulge 24
A mounting boss 26 is projectingly formed on the upper side of the back surface of the above, a terminal portion 27 for housing the switch unit 5 is formed, and a mounting groove portion 28 for mounting the back cover 6 is formed on the lower side of the back surface. Has been done.

The packing 3 is made of resin and has an annular portion 31 which is fitted to the outer side of the flange portion 21 of the plate 2, and a plate portion 32 which is interposed between the support 1 and the plate 2 is integrated. Is formed in. An opening 33 is formed in the center of the plate portion 32, and mounting bosses are provided on the upper and lower edges of the opening 33.
An insertion hole 34 through which 23 is inserted is formed.

The push button 4 has a circular button portion 41 fitted in the window hole 25.
The lever portion 42 is formed so as to project from the upper portion of the button portion 41, and the shaft portions 43 that are rotatably supported with respect to the plate 2 are formed so as to project from both sides of the lever portion 42. When the push button 4 is assembled into the plate 2, the spring 44 is arranged between the lever portion 42 and the bulging portion 24, and the button portion
41 is rotationally biased in a direction projecting from the window hole 25.

Although not shown, the switch unit 5 has a fixed contact and a movable contact which is brought into contact with and separated from the fixed contact according to the rotation of the push button 4, and a connecting screw 51 for connecting an electric wire to a terminal plate corresponding to each contact. It is screwed.

The back cover 6 constitutes a base together with the plate 2, is made of resin, and is formed in such a shape as to cover the entire back surface of the bulging portion 24 of the plate 2, and the lower portion thereof is a mounting groove portion of the plate 2. It is inserted from above into 28, and the mounting hole 61 in the upper part is screwed and mounted to the mounting boss 26 together with the terminal cover 7. The back cover 6 is formed with a pair of cutouts (not shown) from which the connection screws 51 project, and a plurality of locking holes 62 are formed on the upper side of the cutouts.
A locking hole 63 as a claw receiving portion is formed on the lower side of the cutout portion.

As shown in FIGS. 1 to 3, the terminal cover 7 is made of a resin such as polypropylene, and the fixing portion 71 and the cover portion 72 are integrally formed.

In the fixing portion 71, a connecting plate portion 74 is formed at a substantially right angle from a lower edge portion of the fixing plate portion 73 having a substantially semicircular shape.
A mounting hole 75 that is screwed to the mounting boss 26 is formed in the 73, and a plurality of locking claw portions 76 that are inserted and locked in the locking holes 62 of the back cover 6 are formed to project. In addition, the fixing plate portion 73 is provided with a molding hole 77 for molding the claw 76a with a molding die including a male die and a female die, on the protruding surface side of the pawl 76a of each locking pawl portion 76. ing.

The cover portion 72 is formed in a quadrangular shape, and a locking claw portion 78 that is inserted and locked in the locking hole 63 is formed at the center of the lower edge portion so as to project. The claw 78a of the locking claw 78 is formed on the outer surface side so as to project outward from the lower edge of the cover 72.

The connecting plate portion 74 and the cover portion 72 of the fixed portion 71 are
Both sides are rotatably connected by thin-walled hinge portions 79, and are connected by an opening / closing holding portion 80 at the center.

The opening / closing holding portion 80 is formed from a pair of pieces 81 and 82 in a substantially L-shaped cross section, and a connecting portion 83 at an end of one piece 81 is rotatably connected to a connecting plate 74. In addition, the connecting portion 84 at the end of the other piece 82 is rotatably connected to the cover portion 72. In addition, holes 85 are formed on both sides of the opening / closing holder 80.

Then, the terminal cover 7 is formed as shown in FIGS.
The fixing portion 71 and the cover portion 72 shown in (1) are integrally molded by a molding die including a male die and a female die in a state in which they are parallel to each other.
This is to set the molding hole 77 for molding the claw 76a of the locking claw 76, to make the claw 78a of the locking claw 78 project outside the cover, and to open and close the opening / closing holding part 80. Holes on both sides
By setting 85, etc., integral molding is possible.

Next, the operation of this embodiment will be described.

First, the assembly of the main body of the push button switch
The push button 4 and the switch unit 5 are assembled from the rear surface side of the bulging portion 24 of the plate 2, the back cover 6 is attached to cover the push button 4 and the switch unit 5, and the locking claw portions 76 of the fixing portion 71 of the terminal cover 7 are attached. Is inserted into the locking hole 62 of the back cover 6 and locked, and the terminal cover 7 is mounted.
It is screwed and fixed to the mounting boss 26 of the plate 2 through. The packing 3 is attached to the flange portion 21 of the plate 2.

At the time of construction of the push button switch, the support 1 is attached to the switch mounting surface such as a wall surface and the electric wire is drawn out through the opening 11 of the support 1. Terminal cover 7
Of the switch unit 5 by rotating the cover 72 of the
Of the connecting screw 51 is exposed, the drawn electric wire is connected to the connecting screw 51, and the cover body 72 is rotated in the closing direction to insert and lock the locking claw 78 into the locking hole 63 of the back cover 6. . The plate 2 is attached to the outside of the support 1, and the plate 2 is screwed to the support 1 through the mounting holes 22.

Next, the operation of the cover portion 72 of the terminal cover 7 will be described. As shown in FIG. 4, the cover portion 72 is rotatable from the a position in the molded state, that is, the closed state to the d position in the opened state by elastically deforming the hinge portion 79 with the hinge portion 79 as a fulcrum.

At the position a of the cover 72,
Since the open / close holding unit 80 is in the same state as that at the time of molding, no external force acts on the open / close holding unit 80.

Further, at the position b of the cover portion 72, the hinge portion 79 and the connecting portions 83 and 84 are substantially linearly arranged, and in this state, the distance between the connecting portions 83 and 84 is the maximum. Away,
The open / close holding part 80 is in the most elastically expanded state, and therefore the open / close holding part 80 has an elastic force acting so as to reduce the distance between the connecting parts 83, 84. This state is a neutral point where the open / close holder 80 urges the cover 72 to rotate in the opening direction and the closing direction.

Further, at the position c of the cover portion 72, the cover portion 72 is rotationally biased in the opening direction by the elastic force that acts so as to narrow the gap between the connecting portions 83 and 84 of the opening / closing holding portion 80. It is in a state of

Further, at the d position of the cover portion 72,
The elasticity of the open / close holding unit 80 urges the cover unit 72 to rotate in the opening direction, and the elasticity of the hinge unit 79 causes the cover unit 72 to rotate.
Balances with the force biased to rotate in the closing direction.
The open state of 72 is held.

Therefore, the cover portion 72 in the closed state (position a) is rotated in the opening direction, and the neutral point (b) of the open / close holding portion 80 is rotated.
After passing the position), the cover portion 72 is urged to rotate in the opening direction by the elastic force of the open / close holding portion 80, and the cover portion 72 maintains the open state (position d). Therefore, if the cover 72 is opened at the time of connecting the electric wire, the open state is maintained, so that the cover 72 does not get in the way and the electric wire can be easily connected.

Further, the cover portion 72 in the open state (position d)
Is rotated in the closing direction, and the open / close holding section 80 is at the neutral point (position b).
, The elastic force of the open / close holder 80
72 is rotated in the closing direction, and the locking claw portion 78 of the cover portion 72 fits into the locking hole 63 of the back cover 6. Therefore, by pushing the cover portion 72 toward the back cover 6, the locking is performed. Claw 78 is the locking hole
Inserted and locked in 63.

The connecting plate portion 74 of the fixed portion 71 and the cover portion 72
The hinge portion 79 may be formed at the center and the open / close holding portions 80 may be formed at both sides.

Next, FIGS. 8 and 9 show another embodiment. In this embodiment, instead of the opening / closing holding portion 80 of the above-mentioned embodiment, the connecting plate from the central portion of the connecting plate portion 74 of the fixing portion 71 is connected. A plate-shaped stopper portion 91 is formed so as to project in parallel with the portion 74. Also,
An opening 92 is formed in the cover portion 72, and the opening portion 92 is formed to have a width and a length that allow the stopper portion 91 to be inserted when the cover portion 72 is rotated. A protrusion 93 that protrudes at an interval narrower than the width of the stopper 91 is formed on the.

Then, when the cover portion 72 is rotated in the opening direction from the closed state, the projection 93 comes into contact with the stopper portion 91, but by further rotating the cover portion 72 in the opening direction, the projection portion
93 elastically rides over the stopper portion 91. Therefore,
Even if the cover portion 72 rotates in the closing direction due to the elasticity of the hinge portion 79, the protrusion 93 comes into contact with the stopper portion 91 to regulate the rotation, so that the cover portion 72 can be held in the open state. In order to close the cover portion 72, the cover portion 72 can be closed by rotating the cover portion 72 in the closing direction so that the protruding portion 93 elastically rides over the stopper portion 91. it can.

Next, FIGS. 10 and 11 show still another embodiment. In this embodiment, the length of the stopper portion 91 is made relatively longer than the length of the opening portion 92.

When the cover 72 is rotated in the opening direction from the closed state, the edge of the opening 92 contacts the upper end of the stopper 91, but the cover 72 is further rotated in the opening direction. Thus, the edge of the opening 92 elastically rides over the stopper 91. Therefore, even if the cover portion 72 rotates in the closing direction due to the elasticity of the hinge portion 79, the edge portion of the opening portion 92 abuts the stopper portion 91 and rotation is restricted, so that the cover portion 72 is held in the open state. can do. In order to close the cover portion 72, the cover portion 72 is rotated in the closing direction so that the edge portion of the opening portion 92 elastically gets over the stopper portion 91, so that the cover portion 72 is closed. Can be closed.

In the above-described embodiment, the example in which the wiring device is applied to the push-button switch has been described. However, even when the wiring device is applied to an outlet, a modular jack, or the like, the same operational effect as the above-described embodiment is obtained. In the case of this outlet or modular jack, the operation part is a plug insertion hole.

[0043]

According to the first aspect of the present invention, when the cover portion of the terminal cover is rotated in the opening direction, the open / close holder holds the open state by urging the cover portion in the opening direction. Therefore, the cover portion does not get in the way and the workability of connecting the electric wire to the terminal portion can be improved.

According to the second aspect of the present invention, if the cover portion of the terminal cover is rotated in the opening direction to elastically ride over the stopper portion, the stopper portion rotates the cover portion in the closing direction. Because it can be regulated, the cover part does not get in the way,
The workability of connecting the electric wire to the terminal portion can be improved.

According to the third aspect of the present invention, by providing the terminal device according to the first or second aspect, it is possible to provide a wiring device in which an electric wire can be easily connected to the terminal portion.

[Brief description of drawings]

FIG. 1 is a perspective view of a terminal cover in a closed state showing an embodiment of the present invention.

FIG. 2 is a perspective view of the terminal cover of the above embodiment in an open state.

3A and 3B show a terminal cover of the above embodiment, FIG. 3A is a front view, FIG. 3B is a side view, and FIG. 3C is a rear view.

FIG. 4 is an explanatory diagram of an opening / closing holding operation of the terminal cover according to the embodiment.

FIG. 5 is a cross-sectional view of the wiring device according to the above embodiment.

FIG. 6 is a rear view of the wiring device of the above embodiment.

FIG. 7 is a front view of the wiring device of the above embodiment.

FIG. 8 is a perspective view of a terminal cover in a closed state according to another embodiment of the present invention.

FIG. 9 is a perspective view of the terminal cover of the above embodiment in an open state.

FIG. 10 is a perspective view of a terminal cover in a closed state showing still another embodiment of the present invention.

FIG. 11 is a perspective view of the terminal cover of the above embodiment in an open state.

[Explanation of symbols]

 2 Plate as base 4 Push button as operation part 7 Terminal cover 63 Locking hole as claw receiving part 27 Terminal part 71 Fixing part 72 Cover part 78 Locking claw part 79 Hinge part 80 Open / close holding part 83, 84 Connecting part 91 Stopper

Claims (3)

[Claims] 1. A base having a terminal portion, and a terminal cover for covering the terminal portion of the base, wherein the terminal cover is provided with a fixing portion fixed to the base and a hinge portion is provided to the fixing portion. In the terminal device, wherein the cover portion is rotatably provided, and the cover portion is provided with a locking claw portion that engages with a claw receiving portion of the base in a closed state to cover the terminal portion, the terminal cover has a non-linear cross section. Opening and closing such that the connecting portions at both ends thereof are rotatably connected to the fixed portion and the cover portion, and the hinge portion and both connecting portions are linearly arranged in the middle of the rotation region of the cover portion to elastically expand. A terminal device comprising a holding portion. 2. A base having a terminal portion, and a terminal cover for covering the terminal portion of the base, the terminal cover having a fixing portion fixed to the base, and the fixing portion via a hinge portion. In a terminal device in which a cover portion is rotatably provided, and a locking claw portion that engages with a claw receiving portion of a base is provided on the cover portion in a closed state to cover the terminal portion, the terminal cover is configured to rotate the cover portion. A terminal device, characterized in that a stopper portion is provided in the range of motion so that the cover portion can elastically ride over. 3. A wiring device comprising the terminal device according to claim 1 or 2, and an operation portion provided corresponding to the terminal portion.