JP2002064606A - Interphone planar-type button structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable large planar-type buttons to be built in a small space inside a case and to be fixed to the case in a pivotally movable manner without using machine screws to the case. SOLUTION: An interphone planar-type button structure is composed of the mike and speaker of a master interphone used for communication, planar- type buttons 30A and 30B for communication, and an upper and a lower case, 25 and 26. Pivotally movable shafts 31 which are protuberant and set pivotally movable to a panel 40 covered with the upper case 25, engaging pawls 32 preventing the buttons 30A and 30B from getting out of the panel 40, and grooves 33 arranged in parallel with the engaging pawls 32, are provided to the planar-type buttons 30A and 30B. Bearings 41 where the pivotally movable shafts 31 are pivotally attached and engaging members 42 engaged with the engaging panels 32 and fitted into the grooves 33 are provided to the panel 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface-type button structure of an intercom, and more particularly, to a surface-type button structure of an intercom which is formed large to facilitate a response operation.

[0002]

2. Description of the Related Art An intercom has a main unit connected to an intercom slave unit installed at an entrance or the like and an intercom master unit installed indoors. A CCD camera for capturing an image of the surroundings, a sub-unit microphone for making a call between the intercom main units, a sub-unit speaker, a call button for calling the intercom main unit, and the like are provided. On the other hand, the intercom master unit
A CRT monitor for capturing the image of the entrance visitor sent from the CCD camera of the intercom slave unit, a main unit microphone for communicating with the intercom slave unit, a main unit speaker, a monitor button for operating the CRT monitor, and a call. A call button and the like for operation are provided.

As shown in FIG. 8, a monitor button and a call button provided in such an intercom master unit have a surface-type button structure, and these buttons 51 (hereinafter, referred to as "surface-type buttons 51") are housings. It is pivotally fixed to the body 52. Specifically, a pivot shaft 53 is provided at one end of the surface type button 51 like a keyboard of a piano, and a bearing 54 for fitting the pivot shaft 53 to the housing 52 is provided. Also, the pivot 53 of the surface type button 51 is
A member 55 for closing the opening of the bearing 54 so that the pivot shaft 53 does not come off from the bearing 54 after fitting to the bearing 54.
Is fixed to the housing 52 by welding or fastening the screws 56 from the back or front surface of the housing 52.

[0004]

However, in such a conventional surface-type button structure, when the surface-type button 51 is formed to be large, the whole device may become thicker in the thickness direction, and the number of parts and processing may be reduced. The increase in time has led to an increase in manufacturing costs.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem. A large surface-type button can be incorporated in a small space in a housing. It is an object of the present invention to provide a surface-type button structure of an intercom in which a surface-type button can be pivotally fixed to a housing without performing the operation.

[0006]

A surface button structure of an intercom according to the present invention which achieves the above object has a microphone, a speaker for a telephone call, an upper housing having a surface button for a telephone call, It is composed of a lower housing, and a surface type button has a pivot shaft protruding freely rotatable with respect to the upper housing, a hook claw for preventing it from falling out of the upper housing, and juxtaposed with the hook claw The upper housing is provided with a bearing on which a pivot shaft is pivotally mounted, and a locking member that locks the hooking claw and fits into the groove.

According to the surface button structure of the intercom, when the pivot shaft of the surface button is fitted into the bearing of the upper housing,
The hook of the surface button is locked by the locking member of the upper housing, and the locking member of the upper housing fits into the groove of the surface button, so that the surface button is disengaged from the upper housing. It can be pivoted without.

Further, in the surface button structure of the intercom according to the present invention, the surface button is mounted on the side surface of the upper housing so as to be flush with the upper housing. Thereby, it is possible to prevent the entire device from becoming thicker in the thickness direction.

Further, in the surface button structure of the intercom according to the present invention, the surface buttons are provided on a panel which is detachably covered on the upper housing so as to be able to match the color of the wall to be mounted. Thereby, it is possible to easily change the color of the surface type button or change the design.

Further, in the surface button structure of the intercom of the present invention, the root of the molded spring constituting the switch pressing portion for operating the surface button and pressing the switch is broken in the upper housing by an extreme force or the like. At this time, a groove was formed in the switch pressing part so that the switch pressing part was held between the surface type button and the switch and the minimum operation could be performed, and a protrusion was provided in the surface type button so as to fit in the groove. Things. Thereby, when the surface type button is pivotally fixed to the upper housing, the projection provided on the surface type button fits into the groove provided on the switch pressing portion of the upper housing. Even if the root of the formed spring is broken, the switch can be pressed with the surface button.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a preferred embodiment of a surface type button structure of an intercom according to the present invention will be described in detail with reference to the drawings.

As shown in FIG. 7, an intercom to which the surface type button structure of the intercom of the present invention is applied includes an intercom main unit 1 installed at an entrance or the like and an intercom master unit 2 installed indoors with a trunk line L1. Are connected by
The intercom slave unit 1 includes a CCD camera 11 that captures an image of a surrounding area where the intercom slave unit 1 is installed, a slave unit microphone 12 for performing a call between the intercom master unit 2, a slave unit speaker 13, and the intercom master unit 2. A call button 10 for calling is provided. On the other hand, the intercom master unit 2 has a CRT monitor 20 for displaying an image of the entrance visitor sent from the CCD camera 11 of the intercom slave unit 1,
A main unit microphone 21, a main unit speaker 22, a monitor button 30A for operating a CRT monitor 20, a call button 30B for operating a call, and the like are provided.

As shown in FIG. 5, the intercom master unit 2
Master unit microphone 21 for calling, master unit speaker 22 and CRT monitor 20 for displaying an image of a visitor at the entrance
Is mounted between the upper housing 25 and the lower housing 26. Specifically, the main unit microphone 21 and the main unit speaker 2
2 is provided, and the CRT monitor 20 is provided on the lower housing 26. In the upper case 25, a window 25a for the CRT monitor 20, a slit 25b at a position where the parent device microphone 21 is provided, and a lattice slit 25c at a position where the parent device speaker 22 is provided. .

As shown in FIGS. 1 and 5, a panel 40 is detachably covered on the upper housing 25 so that the panel 40 can be removed from the upper housing 25 and replaced. The panel 40 incorporates a monitor button 30A and a call button 30B (hereinafter, referred to as “plane buttons 30A and 30B”) which are plane buttons. As shown in FIGS. 1, 2, and 3, the surface type buttons 30A and 30B each include a protruding pivot shaft 31 that is rotatable with respect to a panel 40 covered by the upper housing 25, and a panel 40. The hook 32 is provided with a hook 32 for preventing the hook from coming off. In addition,
2 and 3 are enlarged perspective views showing only the surface type button 30B. However, since the one surface type button 30A has the same configuration of the pivot shaft 31, the hook 32 and the groove 33, this enlarged perspective view is omitted. are doing.

On the other hand, as shown in FIGS. 1 and 4, the panel 40 has a bearing 41 on which the pivot shafts 31 of the surface type buttons 30A and 30B are pivotally attached, and a groove 33 which locks the hook 32.
And a locking member 42 to be fitted with the locking member 42.

Further, as shown in FIG. 6, the surface type buttons 30A and 30B are formed so that both of them are on the same surface as the panel 40.
It is configured to be mounted on a portion of the panel 40 located on the side surface of the upper housing 25. Thereby, it is possible to prevent the entire intercom base unit 2 from becoming thicker in the thickness direction.

1, 4 and 5 are provided on the panel 40.
As shown in FIG. 7, switch pressing portions 43 which are operated by the surface type buttons 30A and 30B and press the switches 27A and 27B provided on the upper housing 25 are provided at two places via a molding spring 43a. These switches 27A and 27B are used to bring the intercom slave unit 1 into a monitor state or a call state by driving a contact. Further, when the root of the molded spring 43a constituting the switch pressing portion 43 is broken by an extreme force, the switch pressing portion 43 makes the surface type buttons 30A, 30B and the switch 27.
The switch pressing portion 43 is provided with a groove 43b so as to be able to perform a minimum operation while being held between A and 27B. The surface buttons 30A and 30B are provided with the grooves 43.
Protrusions 34 are provided so as to be fitted to b.

In such intercom master unit 2,
In order to pivotally fix the surface buttons 30A and 30B to the panel 40, first, the surface buttons 30A are fitted into the bearings 41 of the panel 40, and the hooks 32 of the surface buttons 30A are bent while the panel is bent. The locking member 42 of the panel 40 is locked over the locking member 42 of the panel 40.
Fits into the groove 33 of the surface type button 30A, and the projection 34 provided on the surface type button 30A fits into the groove 43b provided in the switch pressing portion 43 of the panel 40. Thereby, the surface button 30A can be pivoted without coming off the panel 40, and the projection 3
4 and the groove 43b of the switch pressing portion 43 of the panel 40 are fitted, so that even if the root of the forming spring 43a constituting the switch pressing portion 43 is broken, the switch pressing portion 43 is in contact with the panel 40 and the planar button. 30A, the switch 27A provided on the upper housing 25 with the surface type button 30A.
Can be pressed.

Also, by incorporating the surface type button 30B in the same manner, it is possible to pivot without coming off the panel 40, and the projection 34 of the surface type button 30B and the groove 43b of the switch pressing portion 43 of the panel 40 Are fitted to each other, so that the molded spring 43a constituting the switch pressing portion 43 is formed.
Switch 27B provided on the upper housing 25 can be pressed with the surface-shaped button 30B even if the root of the is broken.

Thus, the surface type buttons 30A, 30A
The panel 40 provided with B is fitted into the upper housing 25, and the switches 27A and 27B can be pressed. In addition,
Since the surface type buttons 30A and 30B are provided on the panel 40 which is detachably covered on the upper housing 25 so as to be able to match the color of the wall to be mounted, the color change of the surface type buttons and the change of the design are performed. Can be easily performed. In the above-described preferred embodiment of the intercom of the present invention having the surface button structure, the surface buttons are provided on the panel which is detachably covered on the upper housing. However, the present invention is not limited to this. Surface buttons may be incorporated into the body itself.

[0021]

As is apparent from the above description, according to the surface button structure of the intercom of the present invention, when the pivot shaft of the surface button is fitted into the bearing of the upper casing, the surface button is hooked. Since the pawl is locked by the locking member of the upper housing and the locking member of the upper housing is fitted into the groove of the surface button, the surface button is pivoted without coming off the upper housing. As a result, a large planar button can be incorporated in a small space in the housing, and the planar button can be pivotally fixed to the housing without processing such as screwing the housing. be able to. As a result, the number of parts is reduced and the assemblability is improved, so that the manufacturing cost can be reduced.

Further, by mounting the surface type button on the side surface of the upper housing so as to be flush with the upper housing, it is possible to prevent the entire device from becoming thicker in the thickness direction.

Further, by providing the surface type buttons on a panel which is detachably covered on the upper housing, it is possible to easily change the color of the surface type buttons and change the design.

Further, when the surface type button is pivotally fixed to the upper housing, the projection provided on the surface type button fits into the groove provided in the switch pressing portion of the upper housing, so that the switch is Even if the root of the molded spring forming the pressing part is broken, the switch pressing part is fixed between the upper housing and the surface type button,
The minimum response operation can be performed.

[Brief description of the drawings]

FIG. 1 is a view showing a preferred embodiment of a surface button structure of an intercom according to the present invention, wherein FIG. 1 (a) is a view from the surface of a panel incorporating a surface button and detachably covered by an upper housing; (B) is a perspective view of the panel viewed from the back.

FIG. 2 is a perspective view of a surface button used in the surface button structure of the present invention as viewed from the surface.

FIG. 3 is a perspective view of the surface type button used in the surface type button structure of the present invention as viewed from the back surface.

FIG. 4 is a perspective view of a panel to which the surface button structure of the present invention is applied, viewed from the back surface.

FIG. 5 is a perspective view showing the intercom master unit with a panel to which the surface button structure of the present invention is applied removed.

FIG. 6 is a perspective view showing the intercom master unit with a panel to which the surface button structure of the present invention is applied;

FIG. 7 is an explanatory diagram showing a configuration of an intercom.

FIG. 8 is a view showing a surface button structure of a conventional intercom, where (a) is a side sectional view and (b) is a back view.

[Explanation of symbols]

 21: Base Unit Microphone 22: Base Unit Speaker 25: Upper Case 26: Lower Case 27A, 27B: Switch 30A, 30B: Surface Button 31: Pivot Shaft 32: hook claw 33: groove 34: projection 40: panel 41: bearing 42: locking member 43: switch pressing part 43a: forming spring 43b ·groove

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshiaki Shimizu 2-18-18 Jinnocho, Atsuta-ku, Nagoya-shi, Aichi F-Term within Aiphone Co., Ltd. 5K023 AA05 GG08 5K038 CC02 FF01

Claims (4)

[Claims] 1. A microphone (21), a speaker (22) for a call, and a surface button (30A,
30B), comprising an upper housing (25) and a lower housing (26). The surface type button includes a protruding pivot shaft (31) that is rotatable with respect to the upper housing. A hook claw (32) for preventing the hook from coming out of the upper housing and a groove (33) arranged in parallel with the hook claw are provided, and the pivot shaft is pivotally attached to the upper housing. Bearing (41)
And a locking member (42) that locks the hooking claw and is fitted into the groove. 2. The surface button structure of an intercom according to claim 1, wherein said surface button is mounted on a side surface of said upper housing so as to be flush with said upper housing. 3. An intercom according to claim 1, wherein said surface type button is provided on a panel (40) which is detachably covered on said upper housing so as to be able to match a color of a wall to be mounted. Surface button structure. 4. A molding spring (43a) constituting a switch pressing portion (43) for operating a switch (27A, 27B) operated by the surface type button and having an extreme force applied to the upper housing. A groove (43b) is provided in the switch pressing portion so that the switch pressing portion is held between the surface button and the switch to perform a minimum operation when the switch is broken at The protrusion (3) is fitted so as to fit into the groove.
The surface button structure of an intercom according to claim 1, further comprising: (4).