JP4351369B2 - Intercom structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an intercom structure , and more particularly to an intercom structure having a surface-type button that is formed to be large in order to facilitate a response operation.
[0002]
[Prior art]
The intercom is a doorphone slave unit installed at the entrance, etc., and an intercom master unit installed indoors connected via a trunk line. The doorphone slave unit captures images around the location of the slave unit. A CCD camera, a handset microphone for making a call between the interphone base units, a handset speaker, a call button for calling the interphone base unit, and the like. On the other hand, the interphone master unit includes a CRT monitor for capturing an image of an entrance visitor sent from the CCD camera of the door phone slave unit, a master microphone for communicating with the door phone slave unit, a master speaker, and a CRT monitor. A monitor button for operating, a call button for operating a call, and the like are provided.
[0003]
As shown in FIG. 8, the monitor button and the call button provided in such an intercom base unit have a surface button structure, and these buttons 51 (hereinafter referred to as “surface button 51”) are attached to the casing 52. It is fixed so that it can pivot. Specifically, a pivot shaft 53 is provided at one end of the surface button 51 like a piano keyboard, and a bearing 54 for fitting the pivot shaft 53 to the housing 52 is provided. Further, after fitting the pivot shaft 53 of the surface button 51 to the bearing 54 of the housing 52, a member 55 for closing the opening of the bearing 54 is provided so that the pivot shaft 53 does not come off the bearing 54. The surface button 51 is fixed to the housing 52 by welding or screwing 56 from the back or front surface of the body 52.
[0004]
[Problems to be solved by the invention]
However, in such a conventional surface button structure, when the surface button 51 is formed large, the entire device may become thicker in the thickness direction, and the manufacturing cost increases due to an increase in the number of parts and processing time. It was.
[0005]
The present invention has been made to solve such a conventional difficulty, and a large surface type button can be incorporated in a small space in the casing, and the casing is not subjected to processing such as screwing. An object of the present invention is to provide an intercom structure capable of pivotally fixing a surface type button to a casing.
[0006]
[Means for Solving the Problems]
The intercom structure of the present invention that achieves such an object includes a microphone for a call, a speaker, a surface button for performing a call, and is composed of an upper housing and a lower housing. A protruding pivot shaft that is pivotable with respect to the upper casing, a hooking claw for preventing the upper casing from coming off, and a groove arranged in parallel with the hooking claw are provided. A bearing to which the pivot shaft is pivotally mounted and a locking member that locks the hooking claw and fits into the groove are provided.
[0007]
According to this intercom structure, when the pivot shaft of the surface button is fitted into the bearing of the upper housing, the hooking claw of the surface button is locked to the locking member of the upper housing, Since the locking member fits into the groove of the surface button, the surface button can be pivoted without detaching from the upper housing.
[0008]
Further, in the intercom structure of the present invention, a panel is provided that is detachably covered on the upper housing so that the surface button can be matched with the color of the wall to be attached. Thereby, the color change of a surface type button and the change of a design can be performed easily.
[0009]
Further, in the intercom structure of the present invention, the upper casing is provided with a switch pressing portion when the root of the molding spring constituting the switch pressing portion for pressing the switch operated by the surface button is broken by an extreme force or the like. A groove is provided in the switch pressing portion so as to be held between the surface-type button and the switch so that a minimum operation can be performed, and the surface-type button is provided with a protrusion so as to fit into the groove. As a result, when the surface button is pivotally fixed to the upper casing, the protrusion provided on the surface button is fitted into the groove provided in the switch pressing section of the upper casing. Even if the base of the forming spring is broken, the switch can be pushed with the surface button.
[0010]
[Form of the present invention]
Hereinafter, preferred embodiments of the interphone structure of the present invention will be described in detail with reference to the drawings.
[0011]
As shown in FIG. 7, an interphone to which the structure of the interphone of the present invention is applied is such that a doorphone slave unit 1 installed at a front door or the like and an interphone master unit 2 installed indoors are connected by a trunk line L1. The doorphone slave unit 1 includes a CCD camera 11 that captures images of the surroundings where the doorphone slave unit 1 is installed, a slave unit microphone 12 for performing a call between the interphone master unit 2, a slave unit speaker 13, and an interphone parent unit. A call button 10 for calling the machine 2 is provided. On the other hand, the interphone master unit 2 includes a CRT monitor 20 for displaying a video of a front door visitor sent from the CCD camera 11 of the door phone slave unit 1, and a master microphone 21 for calling with the door phone slave unit 1. , A parent speaker 22, a monitor button 30A for operating the CRT monitor 20, a call button 30B for operating a call, and the like are provided.
[0012]
As shown in FIG. 5, the interphone base unit 2 includes a base unit microphone 21 for a call, a base unit speaker 22 and a CRT monitor 20 for displaying an image of a visitor at an entrance. It is installed between 26. Specifically, the base microphone 21 and the base speaker 22 are provided in the upper casing 25, and the CRT monitor 20 is provided in the lower casing 26. The upper casing 25 is provided with a window 25a for the CRT monitor 20, a slit 25b at a position where the parent microphone 21 is provided, and a lattice slit 25c at a position where the parent speaker 22 is provided. .
[0013]
As shown in FIGS. 1 and 5, a panel 40 is detachably covered on the upper housing 25 so that the upper housing 25 can be detached from the upper housing 25 and replaced. The panel 40 incorporates a monitor button 30A and a call button 30B (hereinafter referred to as “surface buttons 30A and 30B”) which are surface buttons. As shown in FIGS. 1, 2, and 3, the surface-type buttons 30 </ b> A and 30 </ b> B are each provided with a protruding pivot shaft 31 that is pivotable with respect to the panel 40 covered by the upper housing 25, and the panel 40. A hooking claw 32 for preventing the hook from coming off and a groove 33 provided in parallel with the hooking claw 32 are provided. 2 and 3 are enlarged perspective views showing only the surface button 30B. However, since the surface shaft button 30A has the same configuration of the pivot shaft 31, the hooking claw 32, and the groove 33, this enlarged perspective view. Is omitted.
[0014]
On the other hand, as shown in FIGS. 1 and 4, the panel 40 is fitted into the groove 33 by locking the bearing 41 to which the pivot shaft 31 of the surface button 30 </ b> A, 30 </ b> B is pivotally attached and the hooking claw 32. The locking member 42 is provided.
[0015]
Further, as shown in FIG. 6, the surface-type buttons 30 </ b> A and 30 </ b> B are configured to be attached to the portion of the panel 40 located on the side surface side of the upper housing 25 so that both are the same surface as the panel 40. Yes. Thereby, it can prevent that the intercom main unit 2 whole becomes thick in the thickness direction.
[0016]
Further, as shown in FIGS. 1, 4 and 5, the panel 40 is formed with a switch pressing portion 43 for pressing the switches 27A and 27B provided on the upper casing 25, which are operated by the surface buttons 30A and 30B. It is provided in two places via the spring 43a. The switches 27A and 27B are for switching to a monitor state or a call state with the doorphone slave unit 1 by driving a contact. In addition, when the root of the molding spring 43a constituting the switch pressing portion 43 is broken by an extreme force, the switch pressing portion 43 is held between the surface-type buttons 30A and 30B and the switches 27A and 27B, and the minimum The switch pressing portion 43 is provided with a groove 43b so that the operation can be performed. The surface buttons 30A and 30B are each provided with a protrusion 34 so as to fit into the groove 43b.
[0017]
In such an intercom base unit 2, in order to fix the surface-type buttons 30A and 30B to the panel 40 so as to be pivotable, first, the surface-type button 30A is fitted into the bearing 41 of the panel 40. The hooking claw 32 of 30A is bent and locked over the locking member 42 of the panel 40, and the locking member 42 of the panel 40 is fitted into the groove 33 of the surface button 30A, and further the surface button 30A. The protrusion 34 provided on the groove 40 fits into the groove 43 b provided on the switch pressing portion 43 of the panel 40. As a result, the surface button 30A can be pivoted without detaching from the panel 40, and the protrusion 34 of the surface button 30A and the groove 43b of the switch pressing portion 43 of the panel 40 are fitted. Even if the base of the molding spring 43a constituting the switch pressing portion 43 is broken, the switch pressing portion 43 is fixed between the panel 40 and the surface button 30A, so that the upper housing 25 is provided with the surface button 30A. The pressed switch 27A can be pressed.
[0018]
Further, by incorporating the surface button 30B in the same manner, the surface button 30B can be pivoted without being detached from the panel 40, and the protrusion 34 of the surface button 30B is fitted with the groove 43b of the switch pressing portion 43 of the panel 40. Therefore, even if the base of the molding spring 43a constituting the switch pressing portion 43 is broken, the switch 27B provided in the upper housing 25 can be pressed by the surface button 30B.
[0019]
In this manner, the panel 40 provided with the surface-type buttons 30A and 30B is fitted into the upper housing 25, and the switches 27A and 27B can be pressed. The surface buttons 30A and 30B are provided on the panel 40 that is detachably covered with the upper housing 25 so that it can match the color of the wall to be attached. Can be easily changed. In the preferred embodiment of the interphone surface button structure of the present invention described above, the surface button is provided on the panel that is detachably covered by the upper housing. However, the present invention is not limited to this. Surface buttons may be incorporated into the body itself.
[0020]
【The invention's effect】
As is clear from the above description, according to the intercom structure of the present invention, when the pivot shaft of the surface button is fitted into the bearing of the upper housing, the hooking claw of the surface button becomes the locking member of the upper housing. Since the locking member of the upper housing fits into the groove of the surface button, the surface button can be pivoted without detaching from the upper housing. Can be incorporated into a small space in the housing, and the surface button can be pivotally fixed to the housing without processing such as screwing the housing. As a result, the number of parts is reduced and the assemblability is improved, so that the manufacturing cost can be reduced.
[0021]
Further, the surface button is attached to the side surface of the upper casing so as to be on the same surface as the upper casing, thereby preventing the entire device from becoming thick in the thickness direction.
[0022]
Further, by providing the surface button on the panel that is detachably covered on the upper housing, the color of the surface button and the design can be easily changed.
[0023]
Further, when the surface button is pivotally fixed to the upper casing, the protrusion provided on the surface button is fitted into the groove provided in the switch pressing section of the upper casing. Even if the base of the forming spring is broken, the switch pressing portion is fixed between the upper housing and the surface button, so that a minimum response operation can be performed.
[Brief description of the drawings]
FIG. 1 is a diagram showing a preferred embodiment of an interphone structure according to the present invention, in which (a) is a perspective view, as viewed from the front, of a panel in which a surface button is incorporated and is detachably covered by an upper housing; (B) is the perspective view which looked at this panel from the back surface.
FIG. 2 is a perspective view of a surface type button used in the intercom structure of the present invention as viewed from the surface.
FIG. 3 is a perspective view of a surface button used in the intercom structure of the present invention as viewed from the back side.
FIG. 4 is a perspective view of a panel to which the intercom structure of the present invention is applied as viewed from the back side.
FIG. 5 is a perspective view showing the interphone master unit with a panel to which the interphone structure of the present invention is applied removed.
FIG. 6 is a perspective view showing the intercom master unit in a state where a panel to which the intercom structure of the present invention is applied is attached.
FIG. 7 is an explanatory diagram showing a configuration of an intercom.
FIGS. 8A and 8B are diagrams showing a conventional button structure of an intercom, where FIG. 8A is a side sectional view and FIG. 8B is a back view.
[Explanation of symbols]
21 ... Base unit microphone 22 ... Base unit speaker 25 ... Upper housing 26 ... Lower housing 27A, 27B ... Switch 30A, 30B ... Surface button 31 ... Pivoting Shaft 32 ... Hook 33 ... Groove 34 ... Protrusion 40 ... Panel 41 ... Bearing 42 ... Locking member 43 ... Switch push part 43a ... Molding spring 43b ... ·groove

Claims (3)

It has a microphone (21) for calling, a speaker (22), and face-type buttons (30A, 30B) for making the call, and is composed of an upper case (25) and a lower case (26). The mold button includes a protruding pivot shaft (31) that is pivotable with respect to the upper housing, a hooking claw (32) for preventing the upper housing from coming off, and a hooking claw. A groove (33) provided, and a bearing (41) on which the pivot shaft is pivotally mounted on the upper casing, and a latch that engages the hook by engaging the hooking claw. An intercom structure comprising a member (42). The intercom structure according to claim 1, wherein a panel (40) is provided that is detachably covered on the upper housing so that the surface button can be matched with the color of the wall to which the surface button is attached. When the root of the molding spring (43a) constituting the switch pressing part (43) operated by the surface button to press the switch (27A, 27B) is broken by extreme force or the like in the upper casing The switch pressing portion is held between the surface button and the switch so that a minimum operation can be performed, and the switch pressing portion is provided with a groove (43b), and the surface button is fitted in the groove. The intercom structure according to claim 1, further comprising a protrusion (34).

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