JP2009010790A - Doorphone slave device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for adhesively mounting a housing to a flat mounting section to prevent the occurrence of a noise phenomenon due to the vibration of a doorphone slave device, even if a mounting screw section is small, although the housing becomes long vertically when the mounting section for mounting a nameplate, or the like, is formed on the upper portion on the front of the housing showing the appearance of a doorphone slave device. <P>SOLUTION: The doorphone slave device has the doorphone slave device stored inside a case made of a synthetic resin, and the vertically long rectangular housing made of synthetic resin, where a peripheral wall extended backward from the periphery of a front plate is formed so that the rear-end face forms substantially the same surface. The doorphone slave device is detachably supported by an elastic support section at an upper portion while the doorphone slave is being supported by a lower support section at the doorphone slave device storage section of the rear-side lower section of the housing. On the upper portion of the storage section, there are a projection for fixing an upper side extended to the rear side from the front plate, and a projection for fixing the lower side having projection length smaller than that of the projection for fixing the upper side. The projection for fixing a lower side is screwed, while the projection for fixing an upper side is being screwed, thus the peripheral wall is mounted around the storage section to the mounting section by the elasticity of the housing, while the peripheral wall is pressed against the mounting section. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a doorphone slave device that includes a doorphone slave unit that is housed in a synthetic resin case and includes a sound generation element and a camera that are electrically connected to the doorphone master phone, and more particularly to a doorphone child that is suitable for an apartment house. It relates to machine equipment.

As a door phone with a camera, the circuit board 5 is screwed to a portion corresponding to the mounting plate in the housing 8, the monitor camera 2 is mounted on the circuit board 5, and the upper end of the peripheral wall of the housing 8 is attached to the mounting plate 18 to the entrance or the like. There is a configuration in which the claw of the part is engaged and attached. (See Patent Document 1).
Japanese Patent Laid-Open No. 9-18862

In the above-mentioned Patent Document 1, the circuit board 5 on which the monitor camera 2 is mounted is screwed to the body base plate in an exposed state, and the body base plate is covered with the front surface of the door phone slave unit so as to cover the circuit board 5. Since the housing having the appearance is attached, the attachment functional component of the circuit board 5 on which the monitor camera 2 is mounted is a body base plate.

The present invention includes a doorphone slave unit provided with a sound generation element and a camera electrically connected to a doorphone master unit, and a circuit board to which electrical components related to these are mounted in a synthetic resin case as a unit. Is mounted in a housing that exhibits the appearance of the door phone slave device, thereby eliminating the need for the body base plate, and separating the assembly of the door phone slave device from the housing that exhibits the appearance of the door phone slave device. The door phone slave device is completed by simply combining both the housing and the door phone slave device.

In this case, when installing the doorphone slave unit that is housed in a synthetic resin case into the housing, if the mounting structure that does not use screws is used to reduce the number of parts and ease of assembly, If there is a slight looseness between the machine and the housing or between the housing and the mounting part on the back side, the doorphone slave unit vibrates due to vibration during sound generation, etc., and this is transmitted to the housing. As a result, there is a risk that noise may be continuously generated. The present invention provides an attachment that does not cause such a phenomenon.

Further, in the present invention, as in the case of an apartment house such as a condominium, the housing is vertically long when an attachment portion such as a nameplate is formed on the front upper portion of the housing that exhibits the appearance of the door phone slave device, Provided is a structure in which the housing can be attached to a flat attachment portion in a close contact state so that the noise phenomenon as described above does not occur even if there are few screw portions attached to the attachment portion located on the back side of the housing.

The door phone slave device according to the first aspect of the present invention includes a door phone slave device provided with a sound generating element and a camera and housed in a synthetic resin case, and a front plate and a rear end surface extending substantially rearward from the periphery of the front plate to form substantially the same surface. A vertical rectangular synthetic resin housing having a peripheral wall that extends vertically and horizontally and having an open back surface, the housing being located at a position surrounded by the peripheral wall at a lower back side of the front plate. A storage unit for the slave unit is formed, and the door phone slave unit is detachably attached to the storage unit by an elastic support unit provided at an upper part of the storage unit while being supported by a lower support unit provided at a lower part of the storage unit. In this supported state, the door phone slave unit does not protrude rearward from the surrounding wall, and is provided with upper and lower fixing projections extending from the front plate to the back side above the storage portion, Fixing protrusion Is fixed to the upper side so that the rear end surface is formed to be substantially the same as the rear end surface of the peripheral wall, and the length of the lower fixing protrusion is located forward of the rear end surface of the peripheral wall. The housing is formed with a length slightly shorter than the length of the protrusion, and the lower fixing protrusion is screwed in a state where the upper fixing protrusion is screwed to the mounting portion located on the back side of the housing. According to the relationship, the peripheral wall around the storage portion is attached to the attachment portion in a pressed state by the elasticity of the synthetic resin housing.

The door phone slave device according to a second aspect of the present invention is the door phone device according to the first aspect, wherein a sound passage window and a camera window corresponding to the sound generating element are formed at the storage portion corresponding position of the front plate. A nameplate mounting portion is formed on the upper front, and the upper and lower fixing projections are formed on the back side of the nameplate mounting portion, and the housing is mounted by screws passing through the nameplate mounting portion and the upper and lower fixing projections. It is attached to a part.

According to the first aspect of the present invention, the door phone slave unit has a so-called unitized configuration that includes a sound generating element and a camera and is housed in a synthetic resin case, and is detachable from the synthetic resin housing by an elastic support instead of screw fixing. Since it is supported, the door phone slave unit can be accurately held in the housing, the number of parts is reduced, the configuration is simplified, and the door phone slave unit can be easily attached to the housing, repaired and inspected. Then, the housing is fixed to the mounting portion located on the back side of the housing with the upper fixing projection being screwed and the lower fixing projection is screwed. Since the surrounding wall around the storage part is attached to the attachment part in a pressed state, sufficient adhesion between the housing and the attachment part located on the back side can be obtained, and the doorphone slave unit vibrates due to vibration during sound generation, etc. There is no risk of noise due to vibration of the housing even if it is transmitted.

In the second invention, in addition to the effects of the first invention, in the case where a mounting portion such as a nameplate is formed on the upper front surface of the housing exhibiting the appearance of the door phone slave unit as in the case of an apartment house such as an apartment. Although the housing is vertically long, the housing can be mounted in close contact with the flat mounting section so that the noise phenomenon described above does not occur even if there are few screws to mount the mounting section on the back side of the housing. Structure. And since the screw part which attaches a housing to the attachment part located in the back side is covered with a nameplate, an attachment screw does not appear on the front surface but it is excellent in appearance.

The door phone slave device according to the present invention includes a door phone slave device provided with a sound generating element and a camera and housed in a synthetic resin case, and a front plate and a rear end surface extending substantially rearward from the periphery of the front plate to form substantially the same surface. As described above, a synthetic resin housing having a vertically long rectangular shape with a peripheral wall extending in the vertical and horizontal directions and having an open back surface is provided, and the housing is located at a position surrounded by the peripheral wall at a lower back side of the front plate. The doorphone slave unit is detachably supported by the storage unit by an elastic support unit provided at the upper part of the storage unit while being supported by a lower support unit provided at the lower part of the storage unit. In this supporting state, the door phone slave unit does not protrude rearward from the surrounding wall, and is provided with upper and lower fixing projections extending from the front plate to the back side above the storage portion, Protrusion A rear end surface is formed to have a length substantially the same as a rear end surface of the peripheral wall, and the length of the lower fixing protrusion is positioned forward of the rear end surface of the peripheral wall. The housing is formed to be slightly shorter than the length of the protrusion, and the lower fixing protrusion is screwed to the housing with the upper fixing protrusion screwed to the mounting portion located on the back side of the housing. Depending on the relationship, the peripheral wall around the storage portion is attached to the attachment portion in a pressing state by the elasticity of the synthetic resin housing, and examples of the present invention will be described below.

An embodiment of a door phone slave device according to the present invention will be described. 1 is a front perspective view of a door phone slave device according to the present invention, FIG. 2 is a rear perspective view of the door phone slave device according to the present invention, and FIG. 3 is a housing and a door phone slave device of the door phone slave device according to the present invention. FIG. 4 is a rear perspective view of the door phone slave device and the housing of the door phone slave device according to the present invention, FIG. 5 is a rear view of the door phone slave device according to the present invention, and FIG. FIG. 7 is a central longitudinal sectional side view showing a dimensional relationship of the fixing projections of the door phone slave device according to the present invention, and FIG. 7 is a central longitudinal sectional side view showing a state in which the door phone slave device according to the present invention is attached to the attachment portion. .

An embodiment of a door phone slave device according to the present invention will be described with reference to the drawings. Reference numeral 1 denotes a door phone slave device in which the door phone slave device 2 is housed in a synthetic resin housing 3 such as ABS.
The doorphone slave unit 2 is electrically connected to a doorphone master unit (not shown), and houses a sound generation element 4 as a main part in a synthetic resin case 6 and a camera 5 with a lens facing the front. And
Furthermore, it is the form which accommodated the circuit board which attached the electrical components which concern on these, these support members, etc. The sound generation element 4 is a part that emits sound transmitted through the door phone master unit (not shown), a notification sound such as a chime generated by the operation of the push button 7 exposed outside the synthetic resin case 6, and the like. (Not shown). In the case 6 made of synthetic resin, a front case 6A having a rear opening and a back case 6B having a front opening are combined with each other to form a hollow case, and the sound generating element 4, the camera 5, The circuit board etc. which attached the electric parts which concern on these are accommodated.

The housing 3 is made of a synthetic resin having a vertically long rectangular shape, and forms a front panel 3A and a peripheral wall 3B extending rearward from the upper and lower and left and right peripheral edges of the front panel 3A, and surrounding the upper and lower and left and right sides.
The substantially identical surfaces are formed so that the upper and lower and left and right rear end surfaces 3B1 of B are on substantially the same plane L1.

The housing 3 has a configuration in which the back surface surrounded by the peripheral wall 3B is opened, and the storage unit 8 of the door phone slave unit 2 is formed at a lower position on the back side of the front plate 3A surrounded by the peripheral wall 3B. Is formed at the position of the front plate 3A corresponding to the sound transmitting element 4 and the camera window 10 facing the lens portion 5A of the camera 5 and a push button beside the sound passing window 9. Seven operation windows 11 are formed. A transparent protective plate 16 for protecting the lens portion 5 </ b> A of the camera 5 is attached to the camera window 10.

The door phone slave unit 2 is detachably supported by the storage unit 8 by an elastic support unit provided at the upper part of the storage unit 8 while being supported by a lower support unit provided at the lower part of the storage unit 8. The lower support portion places and supports the lower surface of the doorphone slave unit 2 at positions spaced apart from each other left and right, and the locking portion 1 at the tip.
4A1 faces a pair of left and right lower support portions 14A that are locked to the back surface of the door phone slave unit 2 and the lower left and right side surfaces of the door phone slave unit 2 and supports the door phone slave unit 2 so as to suppress left-right movement. Left and right side support portions 14B and 14B are provided. Further, the elastic support portion faces the upper left and right side surfaces of the door phone slave unit 2, and the locking portion 14C1 at the tip is attached to the back surface of the door phone slave unit 2 by elastic force while suppressing the left and right movement of the door phone slave unit 2. A pair of left and right elastic support portions 14C, 14C to be locked
Is provided. The support portions 14A, 14B, and 14C are formed to have a length that does not protrude rearward from the peripheral wall 3B.

The door phone slave unit 2 has left and right side support portions 14B, 14B having lower portions provided on the left and right sides of the storage unit 8, respectively.
While being inserted between them, it is placed on the lower support portion 14A provided at the lower portion of the storage portion 8 and is engaged with the locking portion 14A1.
When the upper part of the doorphone slave unit 2 is pushed to the front plate 3A side in the support state locked to the doorphone, the doorphone slave unit 2 comes into contact with the latching part 14C1 at the tip of the elastic support parts 14C and 14C, and the elastic support part 14C and 14C are inserted between the elastic support portions 14C and 14C while expanding against the elasticity, and the elastic support portions 14C and 14C are elastically restored at the final position so that the locking portion 14C1 at the tip of the doorphone slave unit 2 It is locked and held by the flange portion 2F at the rear peripheral edge. Note that the doorphone slave unit 2 is removed by pushing the elastic support portions 14C and 14C against the elasticity and releasing the lock by the lock portion 14C1.
The door phone slave unit 2 can be detached from the storage unit 8.

In addition to the pair of left and right elastic support portions 14C and 14C, or instead of the pair of left and right elastic support portions 14C and 14C, the upper surface of the door phone child device 2 is opposed to the rear surface of the door phone child device 2. It can also be a pair of left and right elastic support portions.

The elastic support portions including the elastic support portions 14C and 14C, the lower support portion 14A, and the left and right side surface support portions 14B are formed integrally with the housing 3. Since the lower support portion 14A and the left and right side support portions 14B are required to support the door phone slave unit 2, the lower support unit 14A and the left and right side support units 14B have some elasticity, thereby assembling the door phone slave unit 2 to the storage unit 8. Ease of handling is achieved.
In the state of being supported by the support portions 14A, 14B, and 14C, the door phone slave unit 2 does not protrude rearward from the peripheral wall 3B.

A mounting portion 13 for a rectangular nameplate 12 is formed above the camera window 10 on the upper front surface of the front plate 3A. The housing 3 is placed above the storage portion 8 on the back side of the nameplate mounting portion 13. In order to screw onto the vertical plane of the mounting portion 30 (a flat vertical wall such as a building or a front flat mounting plate fixed to the wall of the building) located on the back side, A plurality of upper and lower fixing projections 15A and 15B extending from the front plate 3A to the back side by integral molding are provided. The upper fixing projection 15A has a rear end surface 15A1 whose rear end surface 3B1 is a peripheral wall 3B.
The lower fixing protrusion 15B is positioned slightly forward by a dimension T (within 1 mm) of the rear end surface 3B1 of the peripheral wall 3B. Thus, it is formed in a length slightly shorter than the length of the upper fixing projection 15A.

Due to this dimensional relationship, the housing 3 is in a state where the upper fixing projection 15A is fastened and fixed to the vertical plane of the mounting portion 30 located on the back side by a screw 17 passing therethrough. Due to the relationship in which the fixing protrusion 15B is fastened and fixed by the screw 18, the peripheral wall 3B around the storage portion 8 is attached to the attachment portion 30 in a pressed state by the elasticity of the synthetic resin housing 3. As a result, even if the door phone slave unit 2 vibrates due to vibration during sound generation, etc., and is transmitted to the housing 3, the synthetic resin housing 3 does not vibrate and generates noise. The mounting portion 3 is caused by vibration.
No noise is generated in relation to zero.

As one preferred embodiment capable of obtaining such an effect, as shown in FIG. 6, the rear end surface 15A1 of the upper fixing projection 15A is the same length (substantially the same surface) as the rear end surface 3B1 of the peripheral wall 3B. The rear end surface 15B1 of the lower fixing projection 15B is formed 0.1mm ahead of the rear end surface 3B1 of the peripheral wall 3B (the dimension T is 0.1 mm). The projection 15A has a length shorter by 0.1 mm than the length of the projection 15A.

In this configuration, the upper fixing projection 15A is screwed to the mounting portion 30 with the mounting screw 17, so that the rear end surface 3B1 of the peripheral wall 3B is formed at the upper portion of the housing 3.
Strongly adheres to the mounting portion 30. In this state, the rear end face 1 of the lower fixing projection 15B.
5B1 is separated from the mounting portion 30 by 0.1 mm. Thereby, in the housing 3 of the embodiment, a fastening allowance P of about 0.5 mm is obtained at the lower end portion of the housing 3. here,
By screwing the lower fixing projection 15B to the mounting portion 30 with the mounting screw 18, the lower end of the housing 3 comes into contact with the mounting portion 30 as shown in FIG. When the rear end face 15B1 of the lower fixing projection 15B comes into contact with the mounting portion 30 with the elasticity of the
The rear end surface 3 </ b> B <b> 1 comes into close contact with the mounting portion 30.

As a result, as shown in FIG. 7, the rear end surface 3B1 of the peripheral wall 3B comes into close contact with the mounting portion 30 even at the lower portion of the housing 3, and the entire peripheral wall 3B comes into close contact with the mounting portion. For this reason, as described above, even if the door phone slave unit 2 vibrates due to vibrations during sound generation, it does not vibrate due to the relationship with the housing 3 or the mounting portion, thereby generating noise.

In addition, as shown in FIG. 5, in a normal state in which the door phone slave unit 2 is stored in the storage unit 8, a part 2A on the back surface of the door phone slave unit 2 is flush with the rear end surface 3B1 of the peripheral wall 3B. As described above, when the upper fixing projection 15A and the lower fixing projection 15B are fixed by the screws 17 and 18, a part 2A on the back surface of the door phone slave unit 2 is attached to the mounting portion 30 as described above. Since it abuts, it is held in the housing 3 in a state in which the vibration of the door phone slave unit 2 is suppressed, and a noise suppressing effect due to the vibration can be further exhibited.

In the above, as shown in the figure, the fixing projections 15A and 15B are formed at the upper and lower positions on the back side of the nameplate attachment portion 13, and are attached to the screws 17 and 18 passing through the nameplate attachment portion 13 and the upper and lower fixation projections 15A and 15B. The housing 3 is attached to the attachment portion. After this attachment, by attaching the nameplate 12 to the nameplate attachment portion 13 by adhesive means such as double-sided adhesive tape, the attachment hole portion of the screw passing through the nameplate attachment portion 13 and the fixing projections 15A and 15B is covered with the nameplate. The mounting screws 17 and 18 do not appear on the front surface, and the appearance is excellent.

The door phone slave device of the present invention is not limited to the configuration shown in the above-described embodiment, but can be applied to various forms, and includes various forms within the technical scope of the present invention.

It is a front perspective view of the door phone cordless handset device concerning the present invention. Example 1 It is a back perspective view of the door phone cordless handset device concerning the present invention. Example 1 It is the front perspective view which decomposed | disassembled the housing and door phone subunit | mobile_unit of the doorphone subunit | mobile_unit apparatus which concern on this invention. Example 1 It is the back perspective view which decomposed | disassembled the housing of the doorphone subunit | mobile_unit apparatus which concerns on this invention, and a doorphone subunit | mobile_unit. Example 1 It is a rear view of the door phone cordless handset device concerning the present invention. Example 1 It is a center longitudinal cross-sectional side view which shows the dimensional relationship of the protrusion part for fixing of the door phone subunit | mobile_unit apparatus which concerns on this invention. Example 1 It is a center part vertical side view which shows the state which attached the doorphone subunit | mobile_unit apparatus which concerns on this invention to the attachment part. Example 1

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 .... Doorphone cordless handset device 2 .... Doorphone cordless handset 3 .... Housing 3B ... Peripheral wall 3B1 ... Rear end face of peripheral wall 4 .... Sound generating element 5 .... Camera 6... Synthetic resin case 7... Push button 8... Storage unit for door phone slave unit 9... Audio passing window 10 ... camera window 11 ... push button 7 Operation window 12 ... nameplate 13 ... nameplate mounting portion 14A ··· a pair of left and right lower support portions 14B · · left and right side support portions 14C · · a pair of left and right elastic support portions 15A · · · upper fixing projection 15B .. Lower fixing protrusion 17 ... Mounting screw 18 ... Mounting screw 30 ... Mounting part

Claims (2)

A doorphone slave unit with a sound generating element and a camera housed in a synthetic resin case, and a front wall and a peripheral wall that extends rearward and rearward from the peripheral edge of the front plate so that the rear end surface forms a substantially identical surface. Formed of a synthetic resin housing having a vertically long rectangular shape with the back surface open, the housing forming a storage portion of the door phone slave unit at a position surrounded by the peripheral wall at a lower back side of the front plate, The door phone slave unit is detachably supported by the storage unit by an elastic support unit provided at an upper part of the storage unit while being supported by a lower support unit provided at a lower part of the storage unit. The machine is in a state that does not protrude rearward from the surrounding wall, and is provided with upper and lower fixing protrusions extending from the front plate to the back side above the storage portion, and the rear end surface of the upper fixing protrusion is the peripheral wall After The lower fixing protrusion is formed to be substantially the same length as the surface, and the length of the lower fixing protrusion is slightly shorter than the length of the upper fixing protrusion so as to be positioned forward of the rear end surface of the peripheral wall. The housing is made of the synthetic resin according to a relationship in which the lower fixing protrusion is screwed in a state where the upper fixing protrusion is screwed to the mounting portion located on the back side of the housing. The door phone slave device, wherein the peripheral wall around the storage portion is attached to the attachment portion in a pressed state by the elasticity of the housing. A sound passage window and a camera window corresponding to the sounding element are formed at the position corresponding to the storage portion of the front plate, and a nameplate attachment portion is formed on the upper front surface of the front plate, the nameplate attachment portion. The upper and lower fixing projections are formed on the back side of the housing, and the housing is attached to the mounting portion with a screw passing through the nameplate mounting portion and the upper and lower fixing projections. Door phone cordless handset device.

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