JP3292250B2 - Switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to an assembly of a cover and a base of a switch device, for example, a communication device such as a door phone with an intercom or a calling device such as a chime sound.

[Prior art]

2. Description of the Related Art In a door phone or the like, an assembly of a base unit on which electric parts such as switches are mounted and a cover member provided with a push button portion is as shown in FIG. That is, screws (A) and (A) (one not shown) are inserted into the recesses (C1) and (C2) provided on the upper and lower sides of the cover member (C) having the push button portion (D). The member (C) was fixed to the base (B). The doorphone handset having such a configuration is used by being attached to an entrance, a gate post, or the like. However, since the cover member (C) is exposed, the cover member (C) catches the eyes of an outsider, When designing the external shape of (C), the above-mentioned concave hole (C
1) and (C2) are conspicuous and often do not match the shape of the other parts, which is subject to design restrictions. Further, since both the push button portion and (D) are designed so as not to cover the concave holes (C1) and (C2), there are cases where design and operability are restricted. In addition, if the doorphone slave unit is attached to the entrance or the gate post and the screws (A) and (A) are exposed outside, it becomes easier for a person who has seen this to guess how to remove the doorphone slave unit, There is a problem of being easily stolen. Furthermore, screws (A) and (A) exposed to the outside
Was rusted by rainwater and dew, and it took time to disassemble during inspection and stained the surface of the cover member, making the appearance unsightly. As a countermeasure against this, it is also possible to cover the screw hole with a sealing agent in consideration of waterproofness. However, the material cost and the process cost are increased, and it is difficult to remove the cover member (C) during the above inspection. there were. Furthermore, the doorphone slave unit is outdoors and often needs to be mounted at a high place, but the screws (A) and (A) must be inserted and screwed into the concave holes (C1) and (C2). Therefore, there is also a problem that the mounting work cannot be performed quickly and the work load on the worker increases.

[0003] In addition, there is an assembly in which engagement portions such as irregularities are provided on both the cover member and the base and are assembled without using screws. In this case, the locking strength of the both is weak and vibration or impact causes There has been a problem that the cover member may come off, though rarely.

[Problems to be solved by the invention]

[0004] In short, the conventional communication device and call device are subject to design restrictions due to the cover member having screws and holes for screw mounting, and the shape and size of the push button portion are also restricted in some cases. Yes, it looks bad. Further, if the screw is exposed to the outside, it is easy to induce theft and the screw is easily rusted. The use of a sealing material is not only expensive but also does not provide a fundamental solution. Further, when screws are screwed in two places, the work load on the operator increases.
Furthermore, there is a problem that the assembling strength of the cover member cannot be improved unless screws are used.

[0005] It is an object of the present invention to provide a communication device and a calling device that can eliminate the above-mentioned problems.

[Means for Solving the Problems]

According to a first aspect of the present invention, there is provided a communication device, comprising: a base mounted on a pillar or a wall from a front side by a base mounting screw; a communication component storage section in which a microphone or a speaker is stored; A cover member having a push button portion provided below the portion, and being attached to the base so as to substantially cover the front side of the base; one cover member for screwing the cover member to the base; The base has a locking portion on the upper side and a screw hole on the lower side when mounted on a pillar or a wall surface;
A locked portion that locks with the locking portion of the base on the upper side, a through hole communicating with the screw hole of the base at a position below and concealed by the push button portion, and the push button The part is concealable of the through-hole, and can be exposed, and is supported rotatably in the vertical direction with the upper side as a fulcrum, and the base and the cover member are locked with the locking part and the locked part, The cover member fixing screw is inserted into the through hole of the cover member and is fixed by screwing the cover member mounting screw screwed into the screw hole of the base.
In a state where the cover member covers the front side of the base, the cover member is mounted and removed while exposing the through hole.

According to the present invention, when the telephone device is mounted on the pillar or the wall surface, the screw for mounting the base and the cover member and the recess for mounting the screw can be made invisible. And at the same time, the cover member can be assembled to the base using only one screw,
The mounting strength can be secured.

[0008] As described above, the appearance in which the screw is not visible when the telephone device is mounted on the pillar or the wall surface increases the degree of design freedom in design, and the push button portion is enlarged by the amount of covering the screw. It becomes possible to form, and operability is also improved. In addition, from the appearance of the communication device, the method of removing the communication device is difficult to guess, so that the communication device is less likely to be stolen. In addition, since it is difficult for rainwater or the like to splash on the screw, rust can be reduced, and maintenance work becomes easy. Further, since the base and the cover member are fixed by the locking of the locking portion and the locked portion and the screwing of the cover member mounting screw, the screwing when the communication device is mounted on a pole or a wall surface is performed. Only one work is required, and the mounting work becomes easy. In addition, when the communication device is mounted on a pillar or a wall surface, positioning can be performed by locking the locking portion and the locked portion, so that the screwing operation becomes easier.

According to a second aspect of the present invention, there is provided a calling device, comprising: a base mounted on a pillar or a wall from the front side by a base mounting screw; a communication component storage section in which a microphone or a speaker is stored; A cover member having a push button portion provided below the portion, and being attached to the base so as to substantially cover the front side of the base; one cover member for screwing the cover member to the base; The base has a locking portion on the upper side and a screw hole on the lower side when mounted on a pillar or a wall surface;
A locked portion that locks with the locking portion of the base on the upper side, a through hole communicating with the screw hole of the base at a position below and concealed by the push button portion, and the push button The part is concealable of the through-hole, and can be exposed, and is supported rotatably in the vertical direction with the upper side as a fulcrum, and the base and the cover member are locked with the locking part and the locked part, The cover member fixing screw is inserted into the through hole of the cover member and is fixed by screwing the cover member mounting screw screwed into the screw hole of the base.
In a state where the cover member covers the front side of the base, the cover member is mounted and removed while exposing the through hole.

According to the present invention, the same function as that of the communication device according to the first aspect is provided.

【Example】

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show a switch device according to a first embodiment of the present invention, for example, a slave unit of a telephone type intercom. In the drawing, (10) is a case-shaped base made of synthetic resin with an open top, and a notch (12) is formed on the bottom side wall (11).
Further, holes (13) and (13) for attaching the base (10) to a pillar or a wall surface with screws are provided.
(14) is a columnar portion having a screw hole (15) on the upper surface erected from the bottom side wall (11), and (16) is an engaging concave portion.
Further, (20) is a rectangular cover member made of synthetic resin which engages with the base (10) having an opening at the lower side. 21) and the bulging portion (21) are connected to form a concave portion (22). (23) is a concave portion (2
A pair of pins (only one is shown) formed opposite to 2),
(24) is a through-hole for screw insertion, (25) is a through-hole for switch push rod insertion, (26) is a through-hole for insertion of the push button portion locking projection, and (27) is an engagement projection. is there. Then, (30) shows an egg shape made of a flexible material made of a synthetic resin or metal.
(32) is a pair of holes (only one is shown) formed in the mounting ear piece (31),
(33) is a locking projection having a hook-shaped projection (34) at the tip. Further, (40) is a switch, (41) is a switch body, (42) is a switch push rod, (44) is a large diameter portion (43) above the push rod (42) and a bottom side wall (11) of the base (10). ) Is a spring member that constantly presses the switch push rod (42) stretched between the switch push rod (42) and the switch push rod (42). Furthermore, (5
Reference numeral 0) denotes a screw for attaching the cover member (25) to the base (10), and (51) denotes a screw for mounting the base (10) to a pillar or a wall surface.

In order to assemble such a door phone, first, two screws (51) and (51) are inserted into holes (13) and (13) of a base on which a switch (40) and other parts not shown are mounted. And mount the base (10) on a pillar or wall surface (not shown). Next, the cover member (2) is inserted into the opening of the base (10).
0), the switch push rod (42) is inserted through the through hole (25) of the concave portion (22) of the base (10), and the engaging concave portion (16) and the engaging convex portion ( 2
7) is locked. And screw (5) into through hole (24)
0) is inserted, and the screw (50) is screwed into the screw hole (15) of the columnar portion (14) to fix them.
Next, a pair of pins (2
Attachment tabs (3) for attaching the push button (30) to (3) and (23).
A pair of holes (32), (32) formed in 1) are inserted, and a hook-shaped projection (34) at the tip of a locking projection (33).
Is inserted through the through hole (26), and the push button (30) is attached to the cover member (20). This completes the assembly of the doorphone.

At this time, the push button portion (30) is attached by a flexible material, and one of the holes (32) is inserted into one of the pins (23) to compress the dome-shaped portion as the main body. Narrow the width and insert the other hole (3
2) Insert. Further, once the locking projection (33) is inserted through the through hole (24), the hook-shaped projection (34) at the tip of the projection (33) is locked to the wall surface of the concave portion (22). Do not escape.

In order to remove or inspect the interior of the intercom slave unit, first, the dome-shaped portion is pressed so that the two mounting ear pieces (31) and (31) of the push button portion (30) are close to each other. From the pins (23) and (23), the holes (32),
(32) comes out and the push button part (30) can be removed, and then the screw (50) can be disassembled by removing the screw (50).

[0015] The operation of the door phone is such that when a visitor or the like presses the push button portion (30), the push button portion (30) is brought into contact with a pair of pins (2
3) and (23) are pivots on which the locking projection (33) is pivoted, that is, the push button (30) in FIG.
The large diameter part (43) of the switch (40) at the same time as moving in the direction
The switch is turned on via the push / pull rod (42), and a buzzer or speaker (not shown) operates. And push button part (3
When the pressing of 0) is stopped, the push button portion (30) returns to the original position by the rebound of the spring member (44), and the switch is turned off.
At this time, the push button portion (30) has the hook-shaped protrusion (34) at the tip of the protruding portion (33) locked on the wall surface of the concave portion (22).

In the doorphone having such a configuration, the screws (50) required for assembling the cover member 20) to the base (10) are used.
However, the cover button (30) has a clear appearance without being seen from the surface side of the cover member (20). Also, since water droplets do not fall directly on the screw (50), rust is less generated. Furthermore, the use of screws does not reduce the mounting strength.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 shows a caller in which only a switch is accommodated in a device for notifying a visitor by a chime sound or the like. In FIG. 3, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted. The push button portion (30) has a rectangular case shape and its upper and lower side walls are longer than the lateral side walls, and hook-like projections (34) are provided at the respective ends of the upper and lower side walls. 20) formed in the through holes (26), (26). In addition, there are two push rods (42) and (42) of the switch (40) to balance the push button portion (30) in parallel.
Further, a step (19) is formed at the peripheral edge of the base (10) and the cover member (20), so that both are securely engaged and waterproof. The operation of the second embodiment,
The operation was similar to that of the first embodiment.

The present invention is limited to the above embodiment.
Instead, a single switch device may be provided with a plurality of push buttons, and screws may be provided in a plurality of the push buttons to improve the assembling strength. Further, the present invention can of course be implemented by combining the components described in the above embodiments. For example, in the first embodiment, the switch is not mounted on the base but the switch is mounted on the cover member side. A push button unit with a switch may be attached later.

【The invention's effect】

According to the first or second aspect of the present invention, in the communication device or the calling device, the screw for mounting the base and the cover member and the recess for mounting the screw when mounted on a pillar or a wall surface. Can be seen. At the same time, the cover member can be mounted on the base using only one screw, and the mounting strength can be secured.

Since the screw is not visible when mounted on a pillar or a wall in this manner, the degree of freedom in design is increased, and the push button portion is formed to be large by the amount of covering the screw. And the operability is also improved. In addition, from the appearance, the removal method is hard to guess and can be made hard to be stolen. In addition, since it is difficult for rainwater or the like to splash on the screw, rust can be reduced, and maintenance work becomes easy. Also, since the base and the cover member are fixed by the locking of the locking part and the locked part and the screwing of the cover member mounting screw, one screwing operation when mounting to the pillar or wall surface is required. Only at the place, and the mounting work becomes easy. In addition, when mounting on a pillar or a wall surface, positioning can be performed by locking the locking portion and the locked portion, so that the screwing operation becomes easier.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a door phone according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a partially cutaway side view of a calling device showing a second embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional example of a door phone.

[Explanation of symbols]

 (10) Base (20) Cover member (30) Push button (40) Switch (50) Screw

Continuation of the front page (56) References JP-A-1-197924 (JP, A) JP-A-61-277306 (JP, A) JP-A-2-35541 (JP, U) JP-A-3-97837 (JP , U) Fully open sho 63-60232 (JP, U) Fully open sho 56-28129 (JP, U) Real open sho 57-186930 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB Name) H01H 21/04 H01H 21/00 330 H01H 23/30 H05K 5/03

Claims (2)

(57) [Claims] 1. A base mounting screw on a column or a wall from the front side.
And a base to be attached to the telephone ;
Storage section and below the communication parts storage section.
With a push button part, and the base substantially covers the front side of this base
Cover member attached to the base ; one cover member attachment for screwing the cover member to the base
And the base is mounted on a pillar or a wall, and
The locking portion has a screw hole on the lower side, and the cover member is locked on the upper side with the locking portion of the base.
On the lower side, which is concealed by the push button
It has a through hole communicating with the screw hole of the table, and the push button
The hole can be concealed and exposed, and the upper side is used as a fulcrum.
The base and the cover member are rotatably supported in a downward direction.
It is inserted into the through hole of the bar member and screwed into the screw hole of the base.
The cover member mounting screws
The cover member mounting screws are
With the front side covered, expose the through hole
Call device characterized in that it is only and dismounting. 2. A base mounting screw on a pillar or wall from the front side.
And a base to be attached to the telephone ;
It is provided below the storage section and this communication parts storage section.
It has a push button part, and the base almost covers the front side of this base.
A cover member to be attached to the base ; one cover member attachment for screwing the cover member to the base
And the base is mounted on a pillar or a wall, and
The locking portion has a screw hole on the lower side, and the cover member is locked on the upper side with the locking portion of the base.
Part, the lower side and the position concealed by the push button part
It has a through hole communicating with the screw hole of the table, and the push button
The hole can be concealed and exposed, and the upper side is used as a fulcrum.
The base and the cover member are rotatably supported in a downward direction.
It is inserted into the through hole of the bar member and screwed into the screw hole of the base.
The cover member mounting screws
The cover member mounting screws are
With the front side covered, expose the through hole
Call device characterized in that it is only and dismounting.