JPH05219168A - Electric equipment and interphone - Google Patents

Abstract

PURPOSE:To hold a button part in a state of opening to a case. CONSTITUTION:A supporting piece parts 12 nearly in the shape of a character 'L' is projectingly provided on both sides of the inside of the top end of the button part 11. Projection parts 13 are provided outside of the respective supporting piece parts 12. A supporting wall part 18 is provided in accordance with the outside position of the respective supporting piece parts 12 inside of the case 2. A holding face parts 20 facing at an interval narrower than that of the both projection parts 13 is provided in the supporting wall part in accordance with the position of the projection part 13 in the opening state of the button body 11. Thus, when the button body 11 is opened, the projection parts pressurized-contacts with the holding face part 20 to keep the button 11 to be in the opening state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device and an intercom provided with a push button type switch.

[0002]

2. Description of the Related Art For example, in an intercom for home use, an intercom body for outdoor use is installed on a wall surface of a front door, and an intercom body for indoor use is installed in a room.
Then, when a visitor or the like arrives, mutual communication can be performed between the intercom body for outdoor use and that for indoor use.

The intercom body for outdoor use is provided with a switch device for calling in a case, and a microphone device and a speaker device for conversation in the case.

In the switch device, a button body is attached to the outer surface of the case so as to be capable of being pushed with the upper end side as a fulcrum, and the button body is arranged in the case so as to face the inner surface of the button body and is operated by pushing the button body. And a switch.

This button body has a hooking piece projecting on the inner surface of the upper end and a locking claw projecting on the inner surface of the lower end. And
To attach the button body to the case, insert the hooking piece at the upper end from the outer surface side of the case and hook it, then rotate the button body toward the case in the closing direction and attach the locking claw at the lower end to the case. Lock. Further, when the button body is attached, the lower end side can be pushed and operated with the hooking portion on the upper end side as a fulcrum.

[0006]

By the way, there is a case where the switch is provided inside the button body and, for example, a volume control of the speaker device is provided.
When adjusting them, it is necessary to open the button body, but if you release the locking claw from the case to open the button body,
The button body is completely removed from the case.

For this reason, the button body may be lost while it is held in the hand while adjusting the detached button body or stored in another place.

The present invention has been made in view of the above circumstances, and provides an electric device and an intercom that can hold a button body in an open state and can easily perform work with the button body in an open state. It is intended to be provided.

[0009]

According to a first aspect of the present invention, there is provided a device body, a button body attached to an outer surface of the device body so as to be openable / closable and pushable in a closed state with one end as a fulcrum, and the button body. A switch disposed on the device body facing the inner surface of the button and actuated by a pushing operation of the button body, and substantially L-shaped support piece portions are provided on both sides of the inner surface on one end side of the button body.
A protrusion is provided on the outer surface of the tip of each of the support pieces, and an insertion hole through which each of the support piece of the button body is rotatably inserted is provided in the device body. Has a supporting surface portion facing each other at a distance wider than both protrusions corresponding to the position of the protrusion in the closed state of the button body, and both protrusions correspond to the position of the protrusion in the opened state of the button body. The support wall portion having the holding surface portions facing each other at a narrower interval than the part interval is provided.

According to a second aspect of the present invention, in an intercom which is provided with an intercom body having a switch device, a microphone device and a speaker device provided in a case so that mutual communication can be carried out between a plurality of intercom bodies, the switch device comprises: A button body is attached to the outer surface of the case such that it can be opened and closed and can be pushed in the closed state with one end as a fulcrum, and a switch that is disposed on the case facing the inner surface of the button body and is operated by the pushing operation of the button body. The button body is provided with a substantially L-shaped support piece portion projecting on both sides of the inner surface on one end side, and a projecting portion projects on the outer surface of the tip of each of the support piece portions. An insertion hole through which each support piece of
The outer edge portion inside the insertion hole has a supporting surface portion that is opposed to the protruding portion position in the closed state of the button body at a distance wider than the distance between both the protruding portions, and the protruding portion in the opened state of the button body. According to the position, the support wall portion having the holding surface portions facing each other at a distance narrower than the distance between the protrusions is provided.

[0011]

According to the first aspect of the present invention, in the state where the button body is closed in the main body of the device, the projecting portions of both supporting piece portions of the button body face the supporting surface portions of both supporting wall portions which are opposed to each other at a wider interval than the projecting portion interval. It is located at and enables the push operation of the button body. When the button body is opened from the main body of the device, the protruding parts of both supporting piece parts of the button body are pressed into contact with the holding surface parts of both supporting wall parts facing each other at intervals smaller than the protruding part intervals, and the button body is in the open state. Held in.

According to the second aspect of the present invention, in the state where the button body is closed in the case, the protrusions of both supporting piece portions of the button body are provided on the supporting surface portions of both supporting wall portions facing each other at a distance wider than the distance between both protruding portions. It is located and enables the push operation of the button body. Also, when the button body is opened from the case, the protrusions of both supporting piece portions of the button body are pressed into contact with the holding surface portions of both supporting wall portions that are opposed to each other at a distance smaller than the distance between both protruding portions, and the button body is opened. Retained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

In the figure, an intercom body 1 is provided with a case 2 as a device body, a switch device 3, a microphone device 4, and a speaker device 5.

The case 2 includes a front case 6 made of a synthetic resin in a frame shape having an opening on the back side, and a back cover made of a synthetic resin mounted inside the back surface of the front case 6 in a fitted state. 7 and 7.

The switch device 3 includes a button body 11 arranged on the front surface of the front case 6. The button body 11 is formed in a substantially quadrangular shape having an area relatively larger than the area of the front case 6, and substantially L-shaped support piece portions 12 are provided on both sides of the inner surface of the upper end and each support is formed. A projecting portion 13 is projectingly provided on the outer surface of the tip end of the piece portion 12, and a locking claw 14 having a projecting claw portion 14a on the lower surface of the tip is projectingly provided at the center of the inner surface of the lower end.

The front case 6 is provided with a concave portion 15 into which the button body 11 is fitted, and insertion holes 16 are formed on both sides of the upper end of the concave portion 15 so that the support piece portions 12 are inserted. .. The distance between the outer edge portions of both insertion holes 16 is substantially the same as the distance between both support piece portions 12, and each projection 13 is inserted into each insertion hole 16 from the front with each support piece portion 12 elastically deformed. By doing so, the protrusion 13 engages with the edge portion 17 of the insertion hole 16 to prevent it from coming off. Therefore, the button body 11 is attached to the front case 6 such that the lower end side can be opened and closed and rotated about the upper end side as a fulcrum.

Support walls 18 project from the outer edges of the insertion holes 16 on the inner surface of the front case 6, and the button body 11 is closed on the opposite surfaces of the support walls 18. Corresponding to the positions of the protrusions 13 (in the state shown in FIGS. 1, 2 and 4), the support surface portions 19 facing each other at intervals wider than the intervals between the protrusions 13.
Are provided in an inclined shape that spreads upward, and are continuous with the lower end of the support surface portion 19 and correspond to the position of the protrusion 13 in the open state (state shown in FIG. 3) of the button body 11, Holding surface portions (20) facing each other are provided at intervals narrower than the intervals of the protrusions (13).

Further, an insertion hole 21 through which the locking claw 14 is inserted is provided at the center of the lower end of the recess 15, and a claw portion 22a with which the claw portion 14a of the locking claw 14 is engaged with the lower edge of the insertion hole 21. Engaging claw
22 is integrally projectingly provided, and a releasing portion 23 for disengaging the claw portion 22a from the claw portion 14a to release the engagement is integrally projectingly provided at the tip of the engaging claw 22.

Then, the button body 11 is biased forward by the elasticity of the transmission body 26, which will be described later, so that the locking claw 14 engages with the engaging claw 22, and the upper end side is used as a fulcrum to support the lower end. The side can be pushed. At this time, the protrusions 13 of the support pieces 12 of the button body 11 are located at the positions of the support surface portions 19 of the support wall portions 18 that are opposed to each other at a distance wider than the distance between the protrusions 13, and the button body 11 is rotated. There are no obstacles to it.

Further, an opening 24 is provided in the center of the concave portion 15, and a transmission body for transmitting the pushing operation force of the button body 11 to the switch 25 arranged in the case 2 in the opening 24. 26 are provided integrally. The transmission body 26 is provided with a swinging piece 28 having a substantially U shape from the upper edge portion of the opening 24 via a curved portion 27.
An abutting piece 29 that abuts the inner surface of the button body 11 is provided on the outer surface of the lower end of the rocking piece 28, and a substantial L that projects inward upward from the inner surface slightly closer to the upper end than the lower end of the rocking piece 28. The pressing piece 30 is provided in a letter shape. The curved portion 27 is a fulcrum located in the vicinity of the rotation fulcrum of the button body 11, and the contact piece 29.
Is a force point that receives the pushing operation force of the button body 11, and the pressing piece 30 is an action point that transmits the pushing operation force to the switch 25.

The switch 25 is mounted on a substrate 31 opposed to the pressing piece 30 and screwed to the inner surface of the front case 6. Another electric component 32 is also mounted on the board 31, and an electric circuit section 33 is configured.

The microphone device 4 has a microphone body 41 having a cylindrical shape and a sound collecting portion provided on the front surface. The microphone body 41 is housed in a microphone housing 42 and is mounted inside the front case 6. ing. The microphone housing 42 is made of rubber and has a circular recess 43 on the front surface thereof, and a through hole 44 facing the front surface of the microphone body 41 is provided inside the recess 43.

The front case 6 is provided with a vertically long slit-shaped opening 45 communicating with the front surface of the case, and is located around the inner surface of the opening 45 and accommodates the microphone housing 42.
A cylindrical holding frame 46 into which is inserted and fixed is projectingly provided, and an annular projecting portion 47 that fits into the recess 43 of the microphone housing 42 projects around the opening 45 inside the holding frame 46. It is set up.

Further, when the microphone housing 42 is inserted into the holding frame 46, the waterproof film 48 is interposed.

The speaker device 5 includes a speaker body 51. Further, the front case 6 is provided with a plurality of vertically extending openings 52 in the shape of a horizontally elongated slit that communicates with the front surface of the case. The front end of the speaker body 51 is located around the inner surface of the opening 52. An annular holding frame 53 that fits around the periphery
Is projected. When fitting the speaker body 51 into the holding frame 53, a waterproof film (not shown) is interposed.

Inside the front case 6, a plurality of ribs 61 are provided so as to abut the inner surface of the back cover 7 inside the peripheral wall portion.
A pair of hooking claws 62 are provided at a position rearward of the rib 61 inside the upper wall portion, and a boss 64 having mounting holes 63 on both sides of the lower wall portion is provided with the rib 61.
A boss 66 having the same height as that of the boss 66 having an insertion hole 65 is provided on the side of the insertion hole 21. The insertion hole 65 is formed in the recess 15
A large diameter portion 67 is provided at the open end of the opening.

The back cover 7 has a front case 6 on the periphery thereof.
A mounting plate portion 68 is provided which is fitted inside the back surface of the and contacts the rib 61 and the boss 64. At the upper end of this mounting plate 68,
A recess 69 that fits with each hooking claw 62 is provided, and a hooking portion 69a that fits in the front surface of the inside half of each hooking claw 62 is provided in approximately the inner half of this recess 69, respectively. A cutout 70 is provided in the half corresponding to the outer half of each hooking claw 62. Through holes 71 are provided on both sides of the lower end of the mounting plate portion 68.

Then, the hooking claws 62 of the front case 6 are fitted into the recesses 69 at the upper end of the back cover 7, and the hooking parts 69a are hooked on the hooking claws 62.
Of the rear cover 7 is fitted to the inner side of the front case 6 and brought into contact with the rib 61 or the boss 64, and a screw (not shown) is inserted into each through hole 71 from the outer side of the back cover 7. The front case 6 and the back cover 7 are joined and fixed by being inserted and screwed into the mounting holes 63 of the boss 64.

Further, the back cover 7 has a mounting plate portion 68 in a substantially central region of the mounting plate portion 68, corresponding to a storage position of the electric circuit portion 33.
A projecting portion 72 that projects more outward than 68 is provided.
Corresponding to the position of the releasing portion 23, a recessed portion 73 recessed on the inner surface side of the mounting plate portion 68 is provided, and the recessed portion 73 is provided with an insertion hole 74 through which the tip of the releasing portion 23 projects. Corresponding to the storage position of the speaker main body 51, a pressing piece 76 for pressing the speaker main body 51 forward through a substantially U-shaped slit 75 is provided. Corresponding to the protruding position of the boss 66, a notch 77 into which the boss 66 is inserted and fitted is provided. Corresponding to each position of a mounting hole 84 of a mounting member 81, which will be described later, recesses 78 and 79 recessed inward from the projecting portion 72 are provided.

Further, a terminal mounting portion is provided on the outer surface of the back cover 7.
80 is provided, and a connection terminal (not shown) connected to the internal electric circuit portion 33 is attached to the terminal attachment portion 80, and is connected to another intercom body at the time of construction by a wiring wire.

Next, the mounting member 81 for mounting the intercom body 1 on the wall surface of the entrance is made of a metal plate, and the front surface is the mounting surface of the intercom body 1 and the back surface is the fixing surface for fixing to the wall surface. It is formed in a shape and dimension that allows it to be fitted to the inner side of the back surface of the front case 6, and flanges 82 that are fitted to the inner sides of both side wall portions of the front case 6 are bent and formed on both sides.

Further, an opening 83 into which the protrusion 72 of the back cover 7 is fitted is provided at the center of the mounting member 81, and this opening 83 is formed.
Horizontally long mounting holes 84 are provided at the upper and lower edge portions of the.

Further, at the upper edge of the mounting member 81, a pair of substantially L-shaped engaging members which engage with the front surface of the outer substantially half of each hooking claw 62 of the front case 6 through each notch 70 of the back cover 7. The stop claw 85 is provided so as to project from the front side. At the center of the lower edge, a mounting piece 86 is cut and raised on the front side, and this mounting piece 86 has an insertion hole for the boss 66.
A screw hole 87 is provided coaxially with 65.

Next, the operation of this embodiment will be described.

When the intercom body 1 is mounted on a wall surface of an entrance, for example, first, when the mounting surface of the back surface of the mounting member 81 is embedded in a predetermined position on the wall surface or in advance on the wall surface or the like. The mounting member 81 is fixed to the wall surface or the like by screwing a fixing screw (not shown) to the wall surface or the mounting box through each mounting hole 84 of the mounting member 81 according to the position of the mounting box.

When mounting the intercom body 1 on the mounting member 81, the button body 11 is opened as shown in FIG. To open the button body 11, the release portion 23 protruding into the recess 73 on the back surface of the back cover 7 is pushed downward, and the engaging claw 22 integrated with the release portion 23 is removed from the locking claw 14. The locking of the lower end side of the button body 11 can be released, and the lower end side of the button body 11 can be pivotally opened upward with the upper end side of the button body 11 as a fulcrum.

When the button body 11 is rotated in the opening direction, the projections 13 of the support piece portions 12 of the button body 11 are moved from the positions where they abut the support surface portions 19 of the support wall portions 18 to the support surface portions. It moves to a position where it abuts on the lower holding surface portion 20 of 19. Since both holding surface portions 20 of both supporting wall portions 18 face each other at a distance narrower than the distance between both protruding portions 13, both supporting piece portions 12 are elastically deformed inward so that the protruding portion 13 is held surface portion 20. Pressed against the button body 11 with this pressure contact force.
Is held open.

Further, the wiring electric wire guided to the wall surface or the like or the mounting box is connected to the connection terminal arranged in the terminal mounting portion 80.

Then, the locking claws 85 of the mounting member 81 are hooked to the outer half of the hooking claws 62 of the front case 6 through the cutouts 70 of the back cover 7 of the intercom body 1, and the mounting member 81 is attached.
The periphery of the front case 6 is fitted to the periphery of the. In this fitted state, the tip surface of the boss 66 is joined to the mounting piece 86.

The mounting screw 91 is inserted into the insertion hole 65 from the front of the recess 15 and the tip of the screw portion of the mounting screw 91 is attached to the screw hole 87 of the mounting piece 86.
Tighten by screwing on. The head portion 91a of the mounting screw 91 is housed in the large diameter portion 67.

Then, the button body 11 is rotated in the closing direction,
The engagement claw 14 of the button body 11 is engaged with the engagement claw 22.

In this way, the intercom body 1 is mounted on the wall surface of the entrance or the like, and is electrically connected to a pair of intercom bodies arranged indoors or the like.

Next, when a visitor or the like uses the intercom, by pressing the button body 11 of the intercom body 1, the switch 25 is operated via the transmission body 26 and a call is made. When the pushing operation of the button body 11 is released, the elasticity of the transmission body 26 pushes the locking claw 14 back to the state where the locking claw 14 engages with the engagement claw 22, and the switch 25 is turned off.

Then, when a response is made with the intercom body installed indoors or the like, the response sound is emitted from the speaker main body 51. At the same time, the voice of the visitor emitted toward the intercom body 1 is picked up by the microphone body 41 and transmitted to the indoor intercom body.

Further, although the opening 45 of the microphone device 4 and the opening 52 of the speaker device 5 are opened on the front surface of the front case 6, rainwater and the like are taken inside the case because they have a waterproof structure. Can be prevented from entering.

Further, in the waterproof structure of the microphone device 4, a microphone housing body housing the microphone body 41 is provided.
Although the waterproof film 48 is interposed when the 42 is inserted into the holding frame 46, if the microphone housing 42 is inserted to the innermost side of the holding frame 46, the microphone housing 42 is inserted.
Since the annular protrusion 47 enters the recess 43, the waterproof film 48 is pulled substantially uniformly by the protrusion 47 in all circumferential directions. Therefore, the waterproof film 48 can be stretched in a plane, and a desired microphone sensitivity can be secured.

When the button body 11 is opened, the projections 13 of the support pieces 12 of the button body 11 are pressed against the holding surface portions 20 of the support wall portions 18, respectively. Therefore, the button body 11 can be held in an open state, and the work of screwing the mounting screw 91 or the work of adjusting the volume volume of the speaker body 51 facing the recess 15 can be facilitated. I can do it.

When the button body 11 is pushed, the transmission body 26
The contact piece 29, which is the force point, receives the pushing operation force, and the swing piece 28 swings with the curved portion 27, which is the fulcrum, as the fulcrum, and the switch 25 is pushed by the pressing piece 30, which is the action point. Therefore, the force for pushing the button body 11 is not directly applied to the switch 25,
Even if the pushing operation force is large, the transmission body 26 elastically displaces and absorbs the force, so that it is possible to prevent an unreasonable force from being applied to the switch 25 and prevent the switch 25 from being damaged or damaged.

Further, when the button body 11 is opened, the release portion 23 protruding from the back cover 7 is operated so that the front case 6
The engagement between the locking claw 14 of the button body 11 and the engagement claw 22 of the front case 6 can be released without removing the back cover 7.
Moreover, the rear cover 7 is provided with the projecting portion 72 having a size required for storage corresponding to the storage position of the electric circuit portion 33.
Since the concave portion 73 is provided in the portion corresponding to the projecting portion, the releasing portion 23 can be easily operated by inserting a fingertip or the like into the concave portion 73.

Further, the mounting member 81 is made of a metal plate to form the front case 6.
Since it is formed so that it can be fitted to the inside of the back surface of the mounting member 81, the mounting member 81 can be concealed when the intercom body 1 is mounted to the mounting member 81 to improve the appearance, and the mounting member 81 itself can be made thin and thin. Can be converted.

[0052]

According to the invention of claim 1, in the state where the button body is closed to the main body of the device, the projecting portions of both supporting piece portions of the button body are opposed to each other at a distance wider than the distance between both projecting portions. It is located on the support surface of the section and enables the push operation of the button body. Also, when the button body is opened from the main unit of the device, the protruding parts of both support piece parts of the button body are pressed into contact with the holding surface parts of both supporting wall parts facing each other at a distance narrower than the distance between the protruding parts, and the button body is opened. It is possible to hold the button body, and it is possible to easily perform the work with the button body opened.

According to the second aspect of the invention, in the state where the button body is closed in the case, the projections of both support piece portions of the button body support the support wall portions facing each other at a distance wider than the distance between both projection portions. It is located on the surface and enables the push operation of the button body. Further, when the button body is opened from the case, the protrusions of both supporting piece portions of the button body are pressed into contact with the holding surface portions of both supporting wall portions which are opposed to each other at a distance narrower than the distance between both protruding portions,
The button body can be held in an open state, and work can be easily performed with the button body open.

[Brief description of drawings]

FIG. 1 is a front view of an intercom body showing an embodiment of the present invention.

FIG. 2 is a sectional view of an intercom body.

FIG. 3 is a partial cross-sectional view of the intercom body with the button body opened.

FIG. 4 is a rear view of a front case of an intercom body.

FIG. 5 is a rear view of a combination of intercom body attachment members.

FIG. 6 is a cross-sectional view of an intercom microphone device.

[Explanation of symbols]

 1 Intercom body 2 Case as device body 3 Switch device 4 Microphone device 5 Speaker device 11 Button body 12 Support piece 13 Projection 16 Insertion hole 18 Support wall 19 Support surface 20 Holding surface 25 Switch

Claims (2)

[Claims] 1. A device main body, a button body mounted on the outer surface of the device main body so as to be openable / closable and pushable in a closed state with one end as a fulcrum, and disposed on the device main body facing the inner surface of the button body. A switch actuated by a push operation of the button body, and substantially L-shaped support piece portions are provided on both sides of the inner surface on one end side of the button body. The device body is provided with an insertion hole through which each supporting piece of the button body is rotatably inserted, and an outer edge portion inside the insertion hole,
Corresponding to the position of the protrusion in the closed state of the button body, it has supporting surface portions facing each other at a distance wider than the distance between the both protrusions, and the distance between both protrusions corresponds to the position of the protrusion in the opened state of the button body. An electric device comprising a support wall portion having holding surface portions facing each other at a narrow interval. 2. An intercom body provided with a switch device, a microphone device and a speaker device in a case,
In an intercom configured to enable mutual communication between a plurality of intercom bodies, the switch device includes a button body attached to the outer surface of the case so as to be openable / closable and pushable in a closed state with one end side as a fulcrum, and the button body. A switch disposed on the case facing the inner surface of the button and actuated by the pushing operation of the button body. A substantially L-shaped support piece is provided on both sides of the inner surface on one end side of the button body. A projection is provided on the outer surface of the tip of the support piece, and an insertion hole for inserting each support piece of the button body is provided in the case. An outer edge portion of the insertion hole closes the button body. Corresponding to the position of the protrusion in the state, has a supporting surface portion that faces at a distance wider than the distance between both the protrusions, and corresponds to the position of the protrusion in the open state of the button body at a distance narrower than the distance between the both protrusions. A supporting wall portion having a holding surface portion for Intercom that.