JP2008243960A - Mounting hardware - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide mounting hardware which can firmly hold an electronic apparatus. <P>SOLUTION: The mounting hardware 1 includes a main body portion 2 in the shape of a nearly rectangular frame which has an opening 2e at the center. In the frame of the body portion 2, an upper mounting portion 3a is disposed on the upper side via upper connecting pieces 4a, while a lower mounting portion 3b is disposed on the lower side via lower connecting pieces 4b. Engaging portions 5 are formed on the right and left ends of an upper frame portion 2a of the body portion 2, while an engaging portion 6 is formed at the center in the right and left direction of a lower frame portion 2b. The upper mounting portion 3a is formed with a screw insertion hole 3c, and the upper connecting piece 4a is disposed on the opposite side from the engaging pieces 5 with respect to the screw insertion hole 3c. Meanwhile, the lower mounting portion 3b is formed with a horizontally long screw insertion hole 3d, and the lower connecting piece 4a is disposed on the opposite side from the engaging piece 6 with respect to the screw insertion hole 3d. The upper connecting pieces 4a and the lower connecting pieces 4b are formed in a width smaller than the width in the vertical direction of the upper mounting portion 3a and the lower mounting portion 3b. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mounting bracket which is attached to a switch box embedded in a construction material and used to hold an electronic device.

Conventionally, there has been a mounting bracket that is attached to a switch box embedded in a wall or the like and used to hook an electronic device to a wall surface (see, for example, Patent Document 1). This mounting bracket is formed in a substantially rectangular frame shape having an opening at the center, and screw insertion holes for inserting screws for fixing to a switch box embedded in a wall at the four corners of the opening. Are provided. In addition, slits are provided in the vicinity of each screw insertion hole, and a substantially L-shaped hooking portion that protrudes forward and extends upward at the distal end side extends in the longitudinal direction on both ends in the width direction of the mounting bracket. Two each are provided. Here, when mounting the mounting bracket to the switch box using screws, if the switch box is deeply embedded in the wall surface, the screws will be tightened strongly, but in this mounting bracket, in the vicinity of each screw insertion hole Is provided with a slit, and deformation of the mounting surface is suppressed by deforming the vicinity of the slit inward.
Japanese Utility Model Laid-Open No. 4-109575 (paragraphs [0008]-[0010] and FIGS. 1 to 3)

  In the mounting metal fitting shown in the above-mentioned Patent Document 1, since the slit is provided in the vicinity of the screw insertion hole, the strength around the screw insertion hole is weakened, and the electronic device is mounted when the electronic device is hooked on the mounting metal fitting. There was a risk of rattling against the wall.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a mounting bracket capable of firmly holding an electronic device.

  The invention of claim 1 includes a frame-shaped main body portion that has a locking portion for locking an electronic device, and is disposed at an opening edge on the surface side of the opening portion provided in the construction material, and the main body portion A screw insertion hole through which a fixing screw is inserted into a portion corresponding to the screw hole of the switch box embedded in the construction material and embedded in the construction material, and at least three edges of the opening in the mounted state And a connecting part that connects the main body part and the attaching part, and the connecting part is formed to have a width dimension smaller than the width dimension of the attaching part in the direction intersecting the connecting direction. To do.

  The invention of claim 2 is characterized in that the connecting portion is provided on the side opposite to the locking portion with respect to the screw insertion hole.

  According to the first aspect of the present invention, the mounting portion can be firmly fixed to the switch box by bringing the mounting portion into contact with the edges of the three sides of the opening in the mounting state, so that the mounting bracket is firmly fixed to the construction surface. There is an effect that it can be installed. In addition, by forming the connecting part with a width dimension smaller than the width dimension of the attaching part in the direction intersecting the connecting direction, the connecting part is easily deformed, and when the attaching part is screwed to the switch box, the connecting part Since the bending moment applied to can be absorbed by deforming the connecting portion, it is possible to suppress the propagation of the bending moment to the main body portion and to suppress the lifting of the main body portion from the construction surface.

  According to the invention of claim 2, by providing the connecting portion on the side opposite to the engaging portion with respect to the screw insertion hole, the engaging portion can be pressed against the construction material by a bending moment applied to the connecting portion in the attached state. It is possible to suppress the lifting of the locking portion from the construction surface. Therefore, there is an effect that it is possible to prevent the mounting state of the electronic device attached to the locking portion from being shaken.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. The mounting bracket 1 according to the present invention is attached to a switch box 14 embedded in a construction material (for example, a wall 15 such as an entrance outside a house), and holds an electronic device (for example, a door phone child unit A). Used for. In the following description, the vertical and horizontal directions are defined in the direction shown in FIG. 1A unless otherwise specified. Accordingly, the upper side of FIG. 6 is the front side.

  As shown in FIG. 1, the mounting bracket 1 according to the present invention is attached to a switch box 14 which is disposed in a frame of the substantially rectangular frame shape having an opening 2 e at the center and the frame of the main body portion 2. An upper attachment portion 3a and a lower attachment portion 3b, and an upper connection piece 4a and a lower connection piece 4b for connecting the upper attachment portion 3a and the lower attachment portion 3b to the main body 2 are provided.

  First, the main body 2 will be described. The main body 2 has a substantially rectangular frame shape having an opening 2e in the center, and is a pair of upper frame 2a and lower frame 2b facing each other, and ends on the same side of the upper frame 2a and lower frame 2b. It is formed by a pair of right frame portion 2d and left frame portion 2c that connect the portions. At both ends in the left-right direction of the upper frame portion 2a, substantially L-shaped locking pieces 5 projecting toward the front surface and extending upward are provided integrally. Further, a locking piece 6 extending obliquely upward is integrally provided at a central portion in the left-right direction of the lower frame portion 2b, and a fixing screw (not shown) is screwed into the locking piece 6. A screw hole 6a is provided. Further, the left end edge of the left frame portion 2c is provided with three notches 2f along the vertical direction for arranging three locking protrusions 7f provided on the cover 7 of the doorphone sub-unit A described later. ing.

  Next, the upper mounting portion 3a and the lower mounting portion 3b will be described. First, the upper mounting portion 3a is formed in a substantially rectangular plate shape, and is chamfered on both upper and lower lateral ends. A fixing screw 16 is provided at a position corresponding to an upper screw hole 14c of the switch box 14 described later. A screw insertion hole 3c for insertion is provided. On the other hand, the lower mounting portion 3b is formed in a substantially rectangular plate shape, and is chamfered on both lower left and right direction ends, and a fixing screw 16 is provided at a position corresponding to the lower screw hole 14c of the switch box 14. A horizontally long screw insertion hole 3d for insertion is provided. The upper mounting portion 3a is disposed at an upper position in the frame of the main body portion 2, and is integrally connected to the right frame portion 2d and the left frame portion 2c of the main body portion 2 via the upper connection pieces 4a and 4a on both ends in the left-right direction. The lower mounting portion 3b is disposed at a lower position in the frame of the main body portion 2, and the right frame portion 2d and the left frame portion of the main body portion 2 via the lower connecting pieces 4b and 4b on both ends in the left-right direction. 2c is integrally connected. Accordingly, when the upper mounting portion 3a and the lower mounting portion 3b are screwed to the switch box 14, the force in the screwing direction applied to the upper mounting portion 3a and the lower mounting portion 3b is transmitted through the upper connecting piece 4a and the lower connecting piece 4b. Therefore, the main body 2 can be brought into close contact with the wall 15.

  Here, the upper connecting piece 4a and the lower connecting piece 4b are formed to have a width dimension smaller than the width dimension in the vertical direction of the upper attaching part 3a and the lower attaching part 3b so as to be easily deformed. The insertion hole 3c is disposed on the opposite side (lower side) of the locking piece 5, and the lower connection piece 4b is disposed on the opposite side (upper side) of the locking piece 6 with respect to the screw insertion hole 3d. Therefore, the bending moment generated by the force in the screwing direction applied to the upper mounting portion 3a and the lower mounting portion 3b at the time of mounting can be absorbed by deforming the upper connecting piece 4a and the lower connecting piece 4b. Can be reduced. Further, the locking pieces 5 and 6 are pressed against the wall 15 by the bending moment transmitted to the main body 2 without being absorbed by the upper connecting piece 4a and the lower connecting piece 4b, and the portion of the main body 2 near the center in the vertical direction is lifted. Can be suppressed.

  Next, as shown in FIGS. 1 and 6, the wall 15 is provided with a vertically long and substantially rectangular opening 15a. On the back side of the wall 15, the switch box 14 faces the opening 15a and is embedded. It is installed. This switch box 14 has a vertically long and substantially box-shaped main body portion 14a having an opening on the front surface side, and an attachment piece 14b extending inward in the left-right central portion on both ends in the vertical direction of the main body portion 14a, 14b are integrally provided, and each mounting piece 14b is provided with a screw hole 14c into which the fixing screw 16 is screwed.

  Here, the doorphone slave unit A attached to the mounting bracket 1 will be described with reference to FIGS. The door phone sub-unit A includes a body 8 formed in a substantially rectangular plate shape and attached to the mounting bracket 1, and a cover 7 formed in a substantially rectangular box shape whose rear surface is open and attached to the body 8 so as to cover the front side. A substrate 9 on which an image sensor 13 and the like to be described later are mounted and accommodated in the body 8 is provided.

  On the right side of the body 8 in the left-right direction, there is provided a connection portion 8a composed of a plurality of connection terminals (four in FIG. 6) to which wires (not shown) previously wired on the back side of the wall 15 are connected. . In addition, as shown in FIG. 5, on the back side of the body 8, locking portions 8 b for locking the locking pieces 5 of the mounting bracket 1 are provided on both sides in the left-right direction near the upper end, respectively. The part is provided with a locking part 8c for locking the locking piece 6 of the mounting bracket 1. Further, on the right side in the left-right direction on the back surface side of the body 8, there are provided three locking recesses 8d that are locked by the locking protrusions 7f provided on the cover 7 along the vertical direction. Further, on the right side of the body 8, screw insertion holes 8 e for inserting fixing screws (not shown) are provided on both ends in the vertical direction.

  Next, the cover 7 will be described. As shown in FIG. 4, a horizontally long and substantially rectangular opening 7 a is provided at the upper position on the front surface of the cover 7, and a substantially rectangular opening 7 b is provided at the lower position on the right side in the left-right direction. A plurality of slits 7c that are elongated in the vertical direction are provided side by side between the openings 7a and 7b in the vertical direction. Further, a vertically long and substantially elliptical slit 7g is provided at the lower side of the slit 7c on the front surface of the cover 7. A substantially rectangular translucent cover 10 having a curved front surface is attached to the opening 7a, and a call button 11 for calling a resident is attached to the opening 7b. Further, at the edge of the side surface of the left side (the right side in FIG. 5A) of the cover 7, three locking projections 7f are provided along the vertical direction at positions corresponding to the locking recesses 8d of the body 8. ing. Further, a fixing portion having a screw insertion hole 7e for inserting a fixing screw (not shown) screwed into the screw hole 6a of the locking piece 6 of the mounting bracket 1 at the center in the left-right direction on the lower surface of the cover 7. 7d is provided.

  Further, the substrate 9 will be described. The substrate 9 is formed in a substantially rectangular plate shape, and a cutout portion 9a for arranging the connection portion 8a of the body 8 is provided on the right side in the left-right direction. At a position corresponding to the opening 7a of the cover 7 on the front side of the substrate 9, an image pickup device (for example, a CCD) 13 for picking up an image of the visitor and a visitor in a dark environment (for example, at night) A plurality (four in FIG. 6) of LED elements 12 that irradiate light are mounted so that the image can be captured. Further, a switch (not shown) pressed by the call button 11 and a circuit for voice call are formed at a position corresponding to the call button 11.

  Next, the procedure for assembling the doorphone sub unit A will be described with reference to FIG. First, the substrate 9 is accommodated in the body 8 in a state where the position of the notch 9 a of the substrate 9 is aligned with the connection portion 8 a of the body 8. Thereafter, the cover 7 is attached to the body 8 with the locking protrusions 7f of the cover 7 being locked to the locking recesses 8d of the corresponding body 8, and a fixing screw is inserted into the screw insertion hole 8e from the back side. Then, when it is screwed into a screw hole (not shown) of the cover 7, the assembly of the doorphone slave unit A is completed. In the assembled state, a speaker (not shown) for voice conversation is accommodated at a position corresponding to the slit 7c, and a microphone (not shown) is accommodated at a position corresponding to the slit 7g.

  Furthermore, the procedure for attaching the mounting bracket 1 to the wall 15 will be described with reference to FIGS. First, the mounting bracket 1 is oriented so that the locking piece 5 is on the upper side and the locking piece 6 is on the lower side, and is arranged on the surface side of the wall 15. The screw insertion hole 3 c of the upper mounting portion 3 a and the lower mounting The position of the screw insertion hole 3d of the portion 3b is aligned with the corresponding screw hole 14c. Thereafter, when the fixing screws 16 and 16 are inserted into the screw insertion holes 3c and 3d and screwed into the screw holes 14c and 14c, the attachment of the mounting bracket 1 is completed. In this state, the upper mounting portion 3a is in contact with the upper and left and right edges of the opening 15a, and the lower mounting portion 3b is in contact with the lower and left and right edges of the opening 15a. Since the portion 3a and the lower mounting portion 3b can be firmly fixed to the switch box 14, the mounting bracket 1 can be firmly attached to the surface of the wall 15.

  Next, a procedure for attaching the doorphone slave unit A to the mounting bracket 1 attached to the wall 15 will be described. First, the door phone sub-unit A is slid from top to bottom along the mounting bracket 1 to lock the locking pieces 5 of the mounting bracket 1 to the locking portions 8b and 8b of the body 8, and to the locking portion 8c. The locking piece 6 is locked. After that, when a fixing screw (not shown) is inserted into the screw insertion hole 7e of the fixing portion 7d provided in the cover 7 and screwed into the screw hole 6a of the locking piece 6, the door phone sub unit A is attached to the mounting bracket 1. It is firmly fixed. Therefore, the doorphone slave unit A can be attached to the mounting bracket 1 without rattling.

  On the contrary, when removing the doorphone sub-unit A from the mounting bracket 1, the fixing screw is removed, and the doorphone sub-unit A is slid from the bottom to the top to lock the locking piece 5 and the locking portion 8b. When the latching between 6 and the latching portion 8 c is released, the doorphone slave unit A is removed from the mounting bracket 1.

  In this embodiment, since the locking pieces 5 and 6 are provided outside the screw insertion holes 3c and 3d, the upper connection piece 4a and the lower connection piece 4b are connected to the screw insertion holes 3c and 3d. Although it is provided closer to the inside, the positional relationship between the locking portion and the connecting portion is not limited to this embodiment, and the connecting portion is provided on the side opposite to the locking portion with respect to the screw insertion hole. Good. Therefore, when the locking pieces 5 and 6 are provided on the inner side with respect to the screw insertion holes 3c and 3d, the upper connection piece 4a and the lower connection piece 4b are provided on the outer side with respect to the screw insertion holes 3c and 3d. Just do it.

  Further, in the present embodiment, the door phone slave unit A has been described as an example of the electronic device. However, any electronic device may be used as long as it is attached to the construction material, and similarly, the electronic device can be attached to the mounting bracket without rattling. it can.

The state which attached the mounting bracket of this embodiment to the construction material is shown, (a) is a front view, (b) is a YY sectional view. It is XX cross section of the state which attached the same as the construction material. It is a perspective view which shows the state which attached the same as the construction material. The door phone sub unit attached to the same is shown, (a) is a front view, (b) is a side view, and (c) is a bottom view. The door phone sub unit attached to the same as above is shown, (a) is a rear view, and (b) is a rear view in a state of being attached to a mounting bracket. It is a disassembled perspective view which shows the state which attaches a doorphone child device to the same.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting bracket 2 Main-body part 3a Upper mounting part 3b Lower mounting part 3c Screw insertion hole 3d Screw insertion hole 4a Upper connection piece 4b Lower connection piece 5 Locking piece 6 Locking piece 14 Switch box 14c Screw hole 15 Wall (construction material)
15a Opening A Door phone handset (electronic equipment)

Claims (2)

  A frame-shaped main body having a locking portion for locking the electronic device and disposed on the opening edge on the surface side of the opening provided in the construction material, and disposed in the frame of the main body A mounting portion that has a screw insertion hole through which a fixing screw is inserted in a portion corresponding to the screw hole of the switch box embedded in the construction material, and that is in contact with at least the three edges of the opening in the mounting state; A mounting bracket comprising: a connecting portion that connects the main body portion and the mounting portion, wherein the connecting portion is formed in a width dimension smaller than the width dimension of the mounting portion in a direction intersecting the connecting direction.   The mounting bracket according to claim 1, wherein the connecting portion is provided on the side opposite to the locking portion with respect to the screw insertion hole.

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