Wall-mounted enclosure structure

Abstract

To improve the workability of wall hanging work by engaging two engaging portions with two engaging protrusions.SOLUTION: A wall-mounted enclosure structure includes a first engaging protrusion 3 and a second engaging protrusion 4 protruding from a wall 2, and a bracket 12 provided on the rear surface 11a of a housing 11. The bracket 12 is formed with a first engaging portion 19 with which the first engaging protrusion 3 engages, and a second engaging portion 20 with which the second engaging protrusion 4 engages. The first engaging portion 19 is formed as a potbelly hole consisting of a small diameter hole and a large diameter hole. The second engaging portion 20 is formed such that the second engaging protrusion 4 engages with it when the housing 11 is moved along the wall surface 2a with the first engaging protrusion 3 inserted into the first engaging portion 19.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a wall-hanging structure for a housing, which uses a plurality of engaging projections to hang the housing on a wall. [Background technology]

[0002] As shown in Patent Document 1, for example, an electronic device that is used in a wall-mounted state has an engaging recess formed on the back side of the housing that faces the wall, and is attached to the wall by engaging an engaging protrusion that protrudes from the wall with the engaging recess. The engaging recess and the engaging protrusion are each arranged in two positions, one above the other. These two engaging portions at the top and bottom must be engaged simultaneously. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-96878 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional wall-mounting structure for an electronic device described above, the engagement protrusions on the wall are obscured by the electronic device when the electronic device is mounted on the wall, making the work of hanging the electronic device on the wall complicated. In particular, there is a problem in that the workability is low because two engagement protrusions must be simultaneously engaged with two engagement recesses.

[0005] An object of the present invention is to improve the workability of the wall-hanging operation in which two engaging portions are engaged with two engaging projections. [Means for solving the problem]

[0006] In order to achieve this object, the wall-hanging structure for an electronic device of the present invention comprises a first engagement protrusion protruding from a wall extending in the vertical direction, a second engagement protrusion protruding from the wall at a vertical interval from the first engagement protrusion, and a bracket provided on the back surface of a housing to be attached to the wall so as to protrude from the back surface toward the wall, and having a first engagement portion with which the first engagement protrusion engages and a second engagement portion with which the second engagement protrusion engages, the first engagement portion being constituted by an oval hole having a small diameter hole with which the first engagement protrusion engages and a large diameter hole formed so that the first engagement protrusion can be inserted and formed so as to be connected to the lower part of the small diameter hole, and the second engagement portion is formed so that the second engagement protrusion engages when the housing is moved along the wall with the first engagement protrusion inserted into the first engagement portion.

[0007] The present invention provides a wall-mounting structure for the housing, wherein the second engagement portion is formed by an elongated hole that terminates at a position corresponding to the second engagement protrusion when the first engagement protrusion is engaged with the small diameter hole and the housing is positioned in a final mounting position, and the elongated hole has a restricting portion that extends in the vertical direction including the terminal end and with which the second engagement protrusion engages, and an introduction portion that extends from a starting end that opens to the outer edge of the bracket to the restricting portion, and a sloping portion is formed on the starting end side of the introduction portion so that the opening width of the introduction portion gradually widens as it approaches the starting end.

[0008] In the wall-mounted structure of the housing of the present invention, the bracket may be formed in a gate-shaped cross section having a main plate portion formed in a plate shape parallel to the wall and having the first engagement portion and the second engagement portion formed thereon, and a pair of side wall portions extending from both ends of the main plate portion toward the housing and attached to the housing.

[0009] The present invention may be such that, in the wall-mounting structure of the housing, a back surface of the housing facing the wall is provided with a plurality of legs protruding from the back surface, and the portion of the bracket where the first engagement portion and the second engagement portion are formed may be abutted against the wall with the legs in contact with the wall. [Effects of the Invention]

[0010] According to the present invention, the workability of the wall-hanging operation of engaging two engaging portions with two engaging protrusions can be improved. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a state in which an electronic device is mounted on a wall by a wall-hanging structure according to the present invention. [Figure 2] FIG. 2 is a perspective view showing a state in which the electronic device is removed from the wall. [Figure 3] FIG. 3 is a diagram showing the bracket. [Figure 4] FIG. 4 is a perspective view of the bracket. [Figure 5] FIG. 5 is a cross-sectional view of the main part. [Figure 6] FIG. 6 is a front view of the bracket at the start of installation. [Figure 7] FIG. 7 is a front view of the bracket showing a state in which the second engagement protrusion has entered the starting end of the second engagement portion. [Figure 8] FIG. 8 is a front view illustrating the operation of the bracket when the housing is attached to the wall. [Figure 9] FIG. 9 is a front view of a bracket showing a modified example in which the positions of the first engaging portion and the second engaging portion in the up-down direction are changed. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, a wall-hanging structure for an electronic device according to an embodiment of the present invention will be described in detail with reference to FIGS. The electronic device 1 shown in Fig. 1 is used by attaching it to a wall 2. The wall 2 extends in the vertical direction and has a first engaging protrusion 3 and a second engaging protrusion 4 protruding therefrom as shown in Fig. 2. The first and second engaging protrusions 3 and 4 according to this embodiment are formed by bolts and protrude from a wall surface 2a of the wall 2 as shown in Fig. 5.

[0013] The bolts constituting these first and second engagement protrusions 3, 4 have a cylindrical spacer 7 between the head 5 and the male thread portion 6, the spacer 7 having a diameter larger than that of the male thread portion 6, and when the bolt is screwed into the wall 2, a gap d is formed between the head 5 and the wall 2. The first engagement protrusion 3 and the second engagement protrusion 4 are provided on the wall 2 so as to be aligned at a predetermined interval in the vertical direction. The first engagement protrusion 3 is located directly above the second engagement protrusion 4.

[0014] The electronic device 1 has a box-shaped housing 11, and is mounted on the wall 2 using a wall-mounting bracket 12 attached to the back surface 11a of the housing 11, which faces the wall 2. The bracket 12 cooperates with first and second engagement protrusions 3, 4 on the wall 2 to form a wall-mounting structure 13 according to the present invention. Legs 14 protruding from the back surface 11a of the housing 11 are provided near each of the four corners. The legs 14 are formed in a rectangular column shape from an elastic material such as rubber.

[0015] As shown in Figures 3(A), (B), and 4, bracket 12 is formed by bending a single metal plate into a gate-shaped cross section. Figure 3(A) is a front view of bracket 12 as seen from the housing side, and Figure 3(B) is a side view of bracket 12. Bracket 12 has side wall portions 15 formed on both ends in the vertical direction, and a main plate portion 16 extending in the vertical direction between these side wall portions 15. Side wall 15 is formed with an L-shaped cross section by a first wall 15a perpendicular to main plate 16 and a second wall 15b parallel to main plate 16. A through hole 17 is formed in second wall 15b. Bracket 12 is fixed to housing 11 by fixing screws 18 (see FIG. 5) passed through through holes 17. That is, side wall 15 extends from both ends of main plate 16 toward housing 11 and is attached to housing 11.

[0016] The length of first wall portion 15a, in other words, the distance between main plate portion 16 and rear surface 11a of housing 11, is approximately the same as the protrusion amount of leg portion 14 of housing 11. In other words, main plate portion 16 of bracket 12 can abut against wall 2 with leg portion 14 in contact with wall 2.

[0017] The main plate portion 16 is formed in a plate shape extending in the up-down and left-right directions. A first engagement portion 19 and a second engagement portion 20 are formed on the main plate portion 16. The first engagement portion 19 is configured to engage with the first engagement protrusion 3, and the second engagement portion 20 is configured to engage with the second engagement protrusion 4. "Engagement" here refers to a state in which the spacer 7 of the first engagement protrusion 3 or the second engagement protrusion 4 enters the first engagement portion 19 or the second engagement portion 20, and the main plate portion 16 is positioned between the head portion 5 and the wall 2, as shown in FIG. 5 .

[0018] The first engaging portion 19 is configured by a so-called potbelly hole 21. The potbelly hole 21 has a small diameter hole 22 into which the first engaging projection 3 engages, and a large diameter hole 23 formed to allow the first engaging projection 3 to pass and to be continuous with the lower part of the small diameter hole 22. The second engagement portion 20 is formed so that the second engagement protrusion 4 engages with it when the housing 11 is moved along the wall surface 2a of the wall 2 with the first engagement protrusion 3 inserted into the first engagement portion 19. As shown in Fig. 3(A) , the second engagement portion 20 in this embodiment is formed by an elongated hole 26 that extends to a starting end 25 that opens at the outer edge 16a of the main plate portion 16, with the end 24 being the position where the second engagement protrusion 4 finally engages. The end 24 is the position that corresponds to the second engagement protrusion 4 when the first engagement protrusion 3 is engaged with the small diameter hole 22 and the housing 11 is positioned in the final mounting position.

[0019] The elongated hole 26 has a restricting portion 26a extending in the vertical direction including the terminal end 24, and an introducing portion 26b extending from a starting end 25 that opens at the outer edge 16a of the main plate portion 16 to the restricting portion 26a. The starting end 25 is located to the side of the terminal end 24. The introducing portion 26b extends along an imaginary circle 27 of radius R whose center is the large-diameter hole 23 of the first engaging portion 19. Therefore, as shown in FIG. 6 , by swinging the housing 11 along the wall surface 2a around the first engaging protrusion 3 inserted into the large-diameter hole 23, the second engaging protrusion 4 enters the introducing portion 26b from the starting end 25.

[0020] The elongated hole 26 according to this embodiment is formed so that the second engagement projection 4 enters the introduction portion 26b even when the housing 11 is lowered after the first engagement projection 3 passes through the large-diameter hole 23 of the first engagement portion 19 and the first engagement projection 3 enters the small-diameter hole 22 as shown in FIG. 7. That is, an inclined portion 28 is formed on the starting end 25 side of the introduction portion 26b. The inclined portion 28 is formed on the upper wall of the introduction portion 26b and is inclined so that the opening width of the introduction portion 26b gradually widens toward the starting end 25.

[0021] In the wall-hanging structure 13 configured as described above, to mount the housing 11 of the electronic device 1 on the wall 2, first, the bracket 12 fixed to the housing 11 is advanced toward the wall 2, and the first engagement protrusion 3 is inserted into the large-diameter hole 23 of the first engagement portion 19. This insertion operation is performed with the bracket 12 (housing 11) tilted so that the starting end 25 of the second engagement portion 20 faces diagonally downward, as shown in FIG. 8(A). When this insertion operation is performed, the legs 14 of the housing 11 come into contact with the wall 2, so that the main plate portion 16 of the bracket 12 becomes approximately parallel to the wall surface 2a, allowing the first engagement protrusion 3 to be properly inserted into the large-diameter hole 23.

[0022] Next, the housing 11 is swung to a final position. This swinging operation may be performed with the first engagement protrusion 3 in the large diameter hole 23 of the first engagement portion 19, or with the housing 11 slightly lowered so that the first engagement protrusion 3 is in (engaged with) the small diameter hole 22 of the first engagement portion 19. By swinging the housing 11 in this manner (moving it along the wall 2), the second engagement protrusion 4 enters the start end 25 of the second engagement portion 20 and comes into contact with the lower wall and upper wall of the introduction portion 26b. When the housing 11 is swung with the first engagement protrusion 3 in the large diameter hole 23, the second engagement protrusion 4 comes into contact with the lower wall of the introduction portion 26b, although this is not shown. On the other hand, when the housing 11 is swung with the first engagement protrusion 3 in the small diameter hole 22, the second engagement protrusion 4 comes into contact with the inclined portion 28, which is the upper wall of the introduction portion 26b, as shown in FIG. 8(B).

[0023] If the housing 11 is further swung with the second engagement protrusion 4 in contact with the wall of the introduction portion 26b, as shown in FIG. 8(C), the second engagement protrusion 4 contacts the wall of the introduction portion 26b and slides while being guided to the back of the introduction portion 26b, and then enters the restriction portion 26a from the introduction portion 26b as shown in FIG. 8(D). The second engagement protrusion 4 contacts the vertical wall of the restriction portion 26a, preventing the housing 11 from being swung any further. Then, by lowering the housing 11 in this state, the first engagement protrusion 3 engages with the first engagement portion 19, and the second engagement protrusion 4 engages with the second engagement portion 20, as shown in FIG. 8(E). Thus, the housing 11 is attached to the wall 2.

[0024] Therefore, with this wall-hanging structure 13 for the housing, only the first engaging portion 19 of the first engaging portion 19 and the second engaging portion 20 is engaged with the first engaging protrusion 3 on the wall 2, and then the second engaging portion 20 is engaged with the second engaging protrusion 4 simply by moving the housing 11 along the wall 2, thereby improving the workability of the wall-hanging operation in which the two engaging portions 19, 20 are engaged with the two engaging protrusions 3, 4.

[0025] Bracket 12 according to this embodiment is formed with a gate-like cross section, having main plate 16 formed in the shape of a plate parallel to wall 2 and having first engaging portion 19 and second engaging portion 20 formed therein, and a pair of side wall portions 15 extending from both ends of main plate 16 toward housing 11 and attached to housing 11. This eliminates the need to form an engaging hole for wall hanging on rear surface 11a of housing 11, thereby increasing the degree of freedom in designing housing 11. Furthermore, by retrofitting bracket 12 to a housing that is not designed for wall hanging, it becomes possible to hang the housing on wall 2.

[0026] In this embodiment, the housing 11 has a back surface 11a facing the wall 2 and provided with a plurality of legs 14 protruding from the back surface 11a. The portion (main plate portion 16) of the bracket 12 where the first engaging portion 19 and the second engaging portion 20 are formed can abut against the wall 2 with the legs 14 in contact with the wall 2. Therefore, when the end of the housing 11 is pushed toward the wall 2 while the housing 11 is attached to the wall 2, the legs 14 are pinched between the housing 11 and the wall 2, restricting the change in the posture of the housing 11. This prevents the bracket 12 from being deformed and disengaged from the first and second engaging protrusions 3, 4.

[0027] In the above-described embodiment, an example has been shown in which the first engagement portion 19 is formed on the second engagement portion 20. However, the present invention is not limited to this. That is, as shown in FIG. 9, the second engagement portion 20 can be formed on the first engagement portion 19. In FIG. 9, the same or equivalent members as those described with reference to FIGS. 1 to 8 are designated by the same reference numerals, and detailed description thereof will be omitted as appropriate. When this configuration is adopted, as shown by the two-dot chain line in FIG. 9, with the first engagement protrusion 3 engaged with the first engagement portion 19, the housing 11 is swung along the wall 2 so that the upper end of the housing 11 becomes the swing end, thereby engaging the second engagement protrusion 4 with the second engagement portion 20. [Explanation of symbols]

[0028] 1...electronic device, 3...first engagement protrusion, 4...second engagement protrusion, 11...housing, 11a...rear surface, 12...bracket, 13...wall-hanging structure, 14...leg portion, 15...side wall portion, 16...main plate portion, 19...first engagement portion, 20...second engagement portion, 21...bell-shaped hole, 22...small diameter hole, 23...large diameter hole, 24...end portion, 25...start end, 26...long hole, 26a...regulating portion, 26b...introduction portion, 28...inclined portion.

Claims

1. a first engagement protrusion provided on a wall extending in the vertical direction; the first engagement protrusion and the second engagement protrusion protruding from the wall at an interval in the vertical direction; a bracket provided on a rear surface of the housing to be attached to the wall so as to protrude from the rear surface toward the wall, the bracket having a first engagement portion with which the first engagement projection engages and a second engagement portion with which the second engagement projection engages; the first engaging portion is configured by an elliptical hole having a small diameter hole into which the first engaging projection engages, and a large diameter hole formed so that the first engaging projection can be inserted and formed so as to be connected to a lower part of the small diameter hole, A wall-hanging structure for a housing, characterized in that the second engagement portion is formed so that the second engagement protrusion engages with the first engagement protrusion when the housing is moved along the wall with the first engagement protrusion inserted into the first engagement portion.

2. The wall-mounting structure for a housing according to claim 1, the second engagement portion is formed by an elongated hole that terminates at a position corresponding to the second engagement protrusion when the first engagement protrusion is engaged with the small diameter hole and the housing is positioned in a final mounting position, the elongated hole has a restricting portion that extends in the vertical direction including the terminal end and engages with the second engaging protrusion, and an introduction portion that extends from a starting end that opens at an outer edge of the bracket to the restricting portion, A wall-hanging structure for a housing, characterized in that a sloped portion is formed on the starting end side of the introduction portion, so that the opening width of the introduction portion gradually increases toward the starting end.

3. The wall-mounting structure for a housing according to claim 1, a wall-mounted structure for a housing, characterized in that the bracket is formed with a gate-shaped cross section having a main plate portion formed in a plate shape parallel to the wall and having the first engagement portion and the second engagement portion formed thereon, and a pair of side wall portions extending from both ends of the main plate portion toward the housing and attached to the housing.

4. The wall-mounting structure for a housing according to any one of claims 1 to 3, a rear surface of the housing facing the wall is provided with a plurality of legs protruding from the rear surface; A wall-mounting structure for a housing, characterized in that the portion of the bracket where the first engagement portion and the second engagement portion are formed is capable of abutting against the wall with the leg portion in contact with the wall.

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