JP5311419B2 - Electronic device and electronic device mounting apparatus - Google Patents

Electronic device and electronic device mounting apparatus Download PDF

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Publication number
JP5311419B2
JP5311419B2 JP2010220630A JP2010220630A JP5311419B2 JP 5311419 B2 JP5311419 B2 JP 5311419B2 JP 2010220630 A JP2010220630 A JP 2010220630A JP 2010220630 A JP2010220630 A JP 2010220630A JP 5311419 B2 JP5311419 B2 JP 5311419B2
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Japan
Prior art keywords
electronic device
box
screw
fixing
fixing screw
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JP2010220630A
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Japanese (ja)
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JP2012080167A (en
Inventor
大祐 後藤
智一 永田
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能美防災株式会社
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Description

  The present invention relates to an electronic device attached to a wall surface, and an electronic device attachment device for attaching an electronic device such as an interphone to the wall surface.

As an electronic device mounting structure for mounting electronic devices, for example, an exposed intercom, to a wall, a general-purpose switch box is fixed in a wall such as a gypsum board, and the body frame of the exposed intercom is fixed to the switch box by screws. There is something.
When such an exposed intercom is renewed to a new one, the embedded intercom is embedded in the wall surface and cannot be directly fixed to the switch box.

Therefore, a system is adopted in which a bottomed frame-like exposure box is screwed to the switch box, and a new embedded intercom is inserted into the fixed exposure box.
As an exposure box for such an application, for example, there is an “exposure box for an intercom master” disclosed in Patent Document 1.

Since the exposure box is fixed to the switch box with screws, normally, as shown in FIG. 5 of Patent Document 1, a plurality of screw insertion holes are provided, and the screw insertion holes are elongated holes.
The screw hole in the exposure box is made into a long hole. Even if the position of the screw hole to which the fixing screw is screwed in the switch box is misaligned with the position of the screw insertion hole in the exposure box, this deviation is absorbed. This is to attach the exposure box in the correct posture.

JP 2008-60821 A

Since the screw insertion hole for fixing the exposure box to the switch box is a long hole, the positional deviation between the exposure box and the switch box can be absorbed as described above.
However, on the other hand, a gap is generated in the longitudinal direction of the screw insertion hole between the inserted fixing screw and the screw insertion hole formed of a long hole. Therefore, for example, when an external force is applied to the exposure box in the attached state, there is a problem that the exposure box is easily displaced.

To deal with this problem, it is conceivable to tighten the fixing screw that secures the exposure box. However, if the fixing screw is tightened strongly, the screw hole of the switch box may be crushed or the resin exposure box may be deformed. To do.
The reason why the exposure box is deformed is as follows.
Since the switch box is installed inside the wall surface, the surface of the switch box is inside the wall that is one step lower than the wall surface, so when the back surface of the exposure box is in contact with the wall surface, A gap is formed between the switch box surface and the switch box surface. In this state, when the fixing screw is inserted into the exposure box and screwed into the screw hole of the switch box, the exposure box is pressed to the switch box side, and thereby the entire exposure box is deformed to be curved inward.

  In the above description, the interphone is renewed as an electronic device using an exposure box. However, the above problem is that an electronic device such as a fire receiver or a repeater having a housing having a main body and a cover is included. This also applies when the device is mounted directly on the wall.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an electronic device or a mounting device for an electronic device that is not easily displaced even when an external force is applied when the main body or the exposure box is screwed. It is said.

(1) The electronic device according to the present invention includes a bottomed frame-shaped main body and a cover, and the housing of the electronic device is configured. The main body is screwed to the wall surface side, and the cover is fixed to the main body. Thus, an electronic device for attaching the electronic device to a wall surface,
The main body has a slot-like screw insertion hole through which a fixing screw is inserted on the bottom surface, and is crushed by the head seating surface of the fixing screw when the fixing screw is tightened to the peripheral edge of the screw insertion hole. It is characterized by comprising a protruding ridge portion.

(2) An electronic device mounting apparatus according to the present invention has a bottomed frame-shaped exposure box, and the exposure box is screwed to the wall surface side, and the electronic device is inserted and fixed to the exposure box. Thus, an electronic device mounting apparatus for mounting the electronic device on a wall surface,
The exposed box has a slot-like screw insertion hole through which a fixing screw is inserted on the bottom surface. When the fixing screw is tightened to a peripheral edge portion of the screw insertion hole, the exposed box has a head seat surface of the fixing screw. It is characterized by comprising a crushed ridge portion.

(3) Further, in the above-described (2), the protruding portion is characterized in that a cross-sectional shape orthogonal to the longitudinal direction of the protruding portion is a shape with a sharp tip. .

(4) Moreover, in the thing as described in said (2) or (3), the said protruding item | line part is provided in the ring shape along the circumference | surroundings of a screw penetration hole, It is characterized by the above-mentioned.

(5) Moreover, in the thing in any one of said (2) thru | or (4), the bending of the said exposure box in contact with the surrounding wall of the electronic device inserted in a frame on the frame inner surface side of the said exposure box It is characterized in that a shape restoring column for restoring the shape is provided.

  In the electronic device according to the present embodiment, an elongated screw insertion hole is provided on the bottom surface of the main body constituting the housing, and the head of the fixing screw is secured when the fixing screw is tightened on the peripheral edge of the screw insertion hole. Since the ridge that is crushed by the seating surface is formed, a step is formed at the boundary between the crushed portion and the uncrushed portion of the ridge, and the step prevents the fixing screw from moving in the screw insertion hole. To do. For this reason, even if the main body is fixed without tightening the fixing screw extremely strongly, when an external force is applied to the main body, the fixing screw is prevented from moving in the elongated hole of the ridge, and the main body may be displaced. Absent.

It is explanatory drawing of the attachment apparatus of the electronic device which concerns on one embodiment of this invention. It is an expansion perspective view of the A section shown with the broken line in FIG. It is explanatory drawing of an effect | action of the protruding item | line part formed in the screw penetration hole in one embodiment of this invention. It is explanatory drawing of an effect | action of the protruding item | line part formed in the screw penetration hole in one embodiment of this invention. It is a horizontal sectional view in the state where an electronic device was inserted in the exposure box in one embodiment of the present invention. It is sectional drawing which follows the arrow AA line of FIG. It is explanatory drawing of an effect | action of the pillar for shape restoration which concerns on one embodiment of this invention.

As shown in FIG. 1, the mounting apparatus 1 for an electronic apparatus according to the present embodiment fixes an exposed box 3 having a bottomed frame shape to a switch box 5 installed on the wall surface side by a fixing screw 6 and exposes it. The electronic device mounting apparatus 1 fixes the electronic device to a wall surface by attaching the electronic device to the box 3.
This will be described in detail below.

<Switch box>
The switch box 5 is a box fixed so as to be embedded in a wall surface, and a plurality of screw holes 7 (four in this example) into which fixing screws 6 are screwed are provided on the front surface.

<Exposure box>
The exposure box 3 is formed in a bottomed frame shape including a frame portion 9 and a bottom portion 11. A rectangular opening 13 is formed on the bottom surface of the exposure box 3, and a plurality (six in this example) of elongated screw insertion holes 15 are provided on the periphery of the opening 13. . As shown in FIG. 2, the cross-sectional shape perpendicular to the longitudinal direction of the ridge portion 17 is a shape with a sharp tip, for example, a triangle, and the ridge portion 17 is inserted into the periphery of the screw insertion hole 15. It is formed in a ring shape so as to make a round along the periphery of the hole 15. The height of the protruding portion 17 is, for example, 0.5 mm.

In the middle of the frame portion 9 in the exposure box 3, more specifically, on both sides of the opening portion 13, and inside the frame portion 9, the shape restoration pillars 19 are erected (see FIGS. 1 and 5). FIG. 6 and FIG. 7). The shape restoring column 19 includes a cylindrical column portion 21 and a guide piece 23 formed to extend in the vertical direction inside the column portion 21. The distance L between the guide pieces 23 is set to be slightly larger than the width W of the peripheral wall 29 of the electronic device inserted into the exposure box 3 (see FIG. 5).
In addition, an inclined portion 25 that is inclined inward is formed at the upper end portion of the guide piece 23.
The shape restoration column 19 is formed in the frame of the exposure box 3 when the exposure box 3 is bent by tightening the fixing screw 6 so that the distance between the guide pieces 23 of the pair of shape restoration columns 19 is reduced. The guide piece 23 is brought into contact with the peripheral wall 29 of the electronic device to be inserted into the device, thereby restoring the shape of the bent exposed box 3.

An attachment method for attaching an electronic device to a wall surface using the electronic device attachment device 1 configured as described above will be described.
As shown in FIG. 1, the exposure box 3 is positioned so that the back surface of the exposure box 3 faces the switch box 5 and the screw holes 7 of the switch box 5 are aligned with the screw insertion holes 15 of the exposure box 3. In this example, the screw insertion holes 15 provided at the four corners of the opening 13 of the exposure box 3 and the screw holes 7 of the switch box 5 are aligned.

  In this state, the fixing screw 6 is inserted into the screw insertion hole 15 of the exposure box 3 and screwed into the screw hole 7 of the switch box 5. FIG. 3 shows the relationship between the screw insertion hole and the fixing screw 6 when the fixing screw 6 is screwed. The exposure box 3 is fixed to the switch box 5 by tightening the fixing screw 6. At this time, as shown in FIG. 3, a part of the ridge portion 17 is crushed by the head seat surface of the fixing screw 6. FIG. 4 shows a state of the ridge portion 17 crushed by the fixing screw 6. As the ridge 17 is crushed, a step 27 is formed between the crushed portion and the uncrushed portion of the ridge 17. Since the side surface of the head of the fixing screw 6 abuts on the step portion 27, the fixing screw 6 is prevented from being displaced in the longitudinal direction of the long hole.

  When the exposure box 3 is attached to the switch box 5, the electronic device is inserted into the exposure box 3 and fixed. FIG. 5 is a horizontal sectional view of the state in which the electronic device is inserted into the exposure box 3, and shows only the exposure box 3 and the peripheral wall 29 of the electronic device. 5 and 6 show a state in which the exposed box 3 is not bent. When the exposed box 3 is not bent, a gap is formed between the guide piece 23 in the shape restoring column 19 and the peripheral wall 29 of the electronic device.

When the exposure box 3 is bent due to the fixing screw 6 being strongly tightened, as shown in FIG. 7, the shape restoring column 19 fixed to the frame portion 9 is placed inside the exposure box 3 together with the frame portion 9. It will fall down. In FIG. 7, it can be seen that the gap between the peripheral wall 29 of the electronic device and the guide piece 23 is smaller than that in FIG. 6. If the deflection of the exposure box 3 is further increased, the inward collapse of the shape restoring column 19 is further increased, but in that case, the peripheral wall 29 of the electronic device abuts on the guide piece 23, The exposure box 3 is pushed and extended from the inside via the shape restoration column 19. By this action, the bending of the exposure box 3 is eliminated.
Since the upper end portion of the guide piece 23 is formed with an inclined portion 25 that is inclined inward, the peripheral wall 29 of the electronic device contacts the inclined portion 25 even when the exposure box 3 is largely bent. In contact with the guide piece 23 by the inclined portion 25, the electronic device can be easily inserted into the exposure box 3.

  As described above, in the electronic apparatus mounting apparatus 1 according to the present embodiment, the protrusion 17 is formed around the long hole-like screw insertion hole 15 for fixing the exposed box 3 to the switch box 5. When the fixing screw 6 is screwed in, the ridges 17 are crushed by the head seating surface of the fixing screw 6, so that the exposure box 3 is fixed without tightening the fixing screw 6 extremely strongly. However, even if an external force acts on the exposure box 3, the fixing screw 6 is prevented from moving in the elongated hole, and the exposure box 3 is not displaced.

  Further, in the electronic apparatus mounting apparatus 1 according to the present embodiment, since the shape restoring original pillar 19 is provided, even if the exposure box 3 is bent, the bending can be eliminated.

In the above-described embodiment, an example of a triangle is given as the cross-sectional shape of the ridge 17, but the present invention is not limited to this, and the cross-section may be trapezoidal or rectangular. In short, what is necessary is just to be crushed by the seating surface of the head of the fixing screw 6 when the fixing screw 6 is screwed.
The protrusion 17 of the exposed box shown in the present embodiment is crushed when the tightening torque when the fixing screw 6 is tightened is 0.2 N · m or more. In the case of the screw used in the exposure box shown in the present embodiment, since the screw tightening torque is generally about 0.4 N · m, the protrusion 17 has a screw tightening torque of 0.4 N · m. It is sufficient if it is crushed by about m.

In addition, since the protrusion 17 of this Embodiment has a triangular cross section and has a pointed tip, it is preferable because it is easily crushed by the fixing screw 6 head seating surface.
In the above-described embodiment, the example in which the ridge portion 17 is provided in an annular shape continuous around the hole of the elongated hole is shown, but the present invention is not limited to this, and the ridge portion is formed by the fixing screw 6. When 17 is crushed by the seat surface of the head of the fixing screw 6, the portion that is not crushed abuts so as to restrict the movement of the head of the fixing screw 6 in the longitudinal direction of the long hole. Good.
Further, it is not necessary for the ridges 17 to be crushed by the fixing screw 6 head seat surface, and it is sufficient if the ridges 17 are not crushed by about 2/3 to 3/4 of the total height.
In the above-described embodiment, the exposure box, which is a steering device for an electronic device in which the electronic device is inserted and attached to the wall surface, is taken as an example. If the portion 17 is provided, the electronic device main body can be directly attached to the wall surface.

DESCRIPTION OF SYMBOLS 1 Electronic device mounting apparatus 3 Exposed box 5 Switch box 6 Fixing screw 7 Screw hole 9 Frame part 11 Bottom part 13 Opening part 15 Screw insertion hole 17 Projection part 19 Shape restoration pillar 21 Pillar part 23 Guide piece 25 Inclined part 27 steps Part 29 Perimeter wall

Claims (5)

  1. An electronic device casing is constituted by a bottomed frame-shaped main body and a cover, and the electronic device is attached to the wall surface by fixing the main body to the wall surface with screws and fixing the cover to the main body. Equipment,
    The main body has a slot-like screw insertion hole through which a fixing screw is inserted on the bottom surface, and is crushed by the head seating surface of the fixing screw when the fixing screw is tightened to the peripheral edge of the screw insertion hole. An electronic device comprising a protruding ridge portion.
  2. Mounting an electronic device having a bottomed frame-shaped exposure box, fixing the exposure box to a wall surface with screws, and inserting and fixing the electronic device to the exposure box A device,
    The exposed box has a slot-like screw insertion hole through which a fixing screw is inserted on the bottom surface. When the fixing screw is tightened to a peripheral edge portion of the screw insertion hole, the exposed box has a head seat surface of the fixing screw. A mounting device for an electronic device, comprising a protruding ridge portion to be crushed.
  3.   The mounting device for an electronic device according to claim 2, wherein the protruding portion has a cross-sectional shape orthogonal to the longitudinal direction of the protruding portion that has a pointed tip.
  4.   4. The electronic device mounting apparatus according to claim 2, wherein the protruding portion is provided in a ring shape along the periphery of the screw insertion hole.
  5.   5. The shape restoring column for restoring the deflection of the exposed box by contacting the peripheral wall of an electronic device inserted into the frame is provided on the inner surface side of the frame of the exposed box. The electronic device mounting apparatus according to claim 1.
JP2010220630A 2010-09-30 2010-09-30 Electronic device and electronic device mounting apparatus Active JP5311419B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010220630A JP5311419B2 (en) 2010-09-30 2010-09-30 Electronic device and electronic device mounting apparatus

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Application Number Priority Date Filing Date Title
JP2010220630A JP5311419B2 (en) 2010-09-30 2010-09-30 Electronic device and electronic device mounting apparatus

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JP2012080167A JP2012080167A (en) 2012-04-19
JP5311419B2 true JP5311419B2 (en) 2013-10-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8187970B2 (en) 2001-07-25 2012-05-29 Applied Materials, Inc. Process for forming cobalt and cobalt silicide materials in tungsten contact applications

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943706U (en) * 1982-09-17 1984-03-22
JPS60180811U (en) * 1984-05-11 1985-11-30
JP2554307B2 (en) * 1993-10-15 1996-11-13 高和工機株式会社 Plates with elongated holes having a positioning function
JP3747356B2 (en) * 1999-02-24 2006-02-22 能美防災株式会社 Electronics
JP2009174659A (en) * 2008-01-25 2009-08-06 Mitsubishi Electric Corp Movable body support device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8187970B2 (en) 2001-07-25 2012-05-29 Applied Materials, Inc. Process for forming cobalt and cobalt silicide materials in tungsten contact applications
US8563424B2 (en) 2001-07-25 2013-10-22 Applied Materials, Inc. Process for forming cobalt and cobalt silicide materials in tungsten contact applications

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