JP6186024B2 - Instrument mounting member - Google Patents

Description

  The present invention relates to an instrument mounting member.

  In order to install a wiring device, for example, on a wall of a building, a wiring box as a device mounting member is disposed on the back of the wall (see, for example, Patent Document 1). The wiring box as the wiring fixture mounting member of Patent Document 1 is made of synthetic resin, and has a vertically long bottomed rectangular box having an opening on one side in the width direction on the upper side and the lower side of the bottom wall. The shape is cut out and removed. The wiring box includes a bottom wall, a left side wall and a right side wall that are a pair of side walls that are continuous with the bottom wall, and an upper wall and a lower wall that are continuous with the left side wall and the right side wall at a position away from the bottom wall. It has a different shape.

  An abutting portion is formed to protrude upward on the opening side edge of the upper wall, and an abutting portion is formed to protrude downward on the opening side edge of the lower wall. In addition, ribs are formed on the inner sides of the opening side edges of the upper and lower walls. The bulging part is formed in the center part inner side of the upper wall and the lower wall, respectively. A mounting hole is formed in the bulging portion. In the lower wall rib, a pair of protrusions (locking protrusions) are formed on the periphery of the mounting hole at positions that are substantially symmetrical to the left and right with respect to the mounting hole. Moreover, the rectangular adhesive tape is each affixed on the left side wall and the right side wall. Each adhesive tape has a first end portion affixed to the inner side surface of the left side wall and the right side wall, and a second end side extending outward from the opening.

  And when fixing a wiring box to a wall, first, a wiring box is inserted into a wall back side from the through-hole (wall hole) drilled in the wall material with the electric punch. Next, the lower side of each protrusion is brought into contact with the lower side of the peripheral surface of the through hole. Then, the downward movement of the wiring box is restricted by the contact of the protrusion, and it becomes easy to align the wiring box at the mounting position where the opening of the wiring box faces the wall surface side from the through hole. Next, when the wiring box is aligned with the mounting position, the contact portion of the wiring box is brought into contact with the upper and lower portions of the peripheral portion of the through hole on the back surface of the wall. Next, the part by the side of the 2nd end part in each adhesive tape is affixed on the surrounding surface of a through-hole, and the surface of a wall. As a result, the wiring box is temporarily fixed to the back surface of the wall.

  Next, the wiring device mounting frame to which the wiring device is attached is arranged on the wall surface, and the mounting screw inserted into the screw insertion hole of the wiring device mounting frame is screwed into the nut mounted in the mounting hole of the wiring box. Tighten together. Then, the wiring box and the wiring fixture mounting frame are connected to each other, and the wiring fixture and the wiring box are fixed to the wall by sandwiching the wall between the wiring box and the wiring fixture mounting frame.

JP 2003-18724 A

  However, in the wiring box of Patent Document 1, the protrusion is provided only on the lower wall, and the wiring box moves upward or left and right only by bringing the protrusion into contact with the lower peripheral surface of the through hole. End up. Therefore, the wiring box cannot be positioned at the mounting position simply by inserting the protrusion into the through hole.

  These problems are not limited to the wiring box, and are, for example, generally common in the fixture fixing frame as the fixture mounting member disposed on the back of the wall in order to install the fixture on the wall of the building. Yes.

  The present invention has been made paying attention to such problems existing in the prior art, and its purpose is to mount an instrument that can be positioned at a mounting position simply by inserting a locking projection into a wall hole. It is in providing a member and an instrument mounting apparatus.

In order to achieve the above object, the invention according to claim 1 is provided with at least one pair of fixing portions which have an opening and are opposed to each other, and the wall member partially includes an elliptical wall hole or a plurality of circular perforations. The openings are arranged on the wall surface through wall holes formed by polymerization, and the fixture or the appliance frame of the appliance is installed on the wall surface using the fixing portion, so that the opening is the wall hole. An instrument mounting member that is fixed to the back of the wall by sandwiching the wall material with the instrument or the instrument frame in a state of facing the wall surface through the wall, and has a front surface and a back surface, and the instrument is inserted therethrough. comprising a frame body having that insertion hole as the opening, wherein the frame body, which has contact with the abutment surface on the surface of the peripheral edge of the wall hole in the back surface of the wall material, the inner peripheral surface of at least the wall hole Locks to each of the opposing arc parts in Formed to protrude on the front surface of retaining projection has said abutment surface, the abutment surface of the second is formed on the back surface of the frame body, and said second abutment surface is the back surface of the wall member The locking projection can protrude only from the front surface side of the frame body, and the fixing portion can be screwed with a fixing screw from both the front and back sides of the frame body. It is characterized by having

According to a second aspect of the present invention, in the first aspect of the present invention, four conical projections for forming four puncture marks on the wall material are provided on the back surface of the frame main body, The gist is that the back surface of the frame body located outside the quadrilateral drawn by connecting the matching protrusions with a straight line forms the second contact portion.

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  According to the present invention, the locking projection can be positioned at the mounting position simply by being inserted into the wall hole.

(A) is a perspective view which shows the instrument fixing frame and instrument frame in 1st Embodiment, (b) is a fragmentary sectional view which shows the state with which the 1st division body and the 2nd division body were connected. (A) is a front view of a 1st division body, (b) is the sectional view on the AA line in Fig.2 (a). (A) is a front view of a 2nd division body, (b) is the BB sectional drawing in FIG. 3 (a). The perspective view which shows the state in which a part of 2nd division body was inserted in the wall hole. The front view of the instrument fixing frame which shows the state temporarily fixed by the wall back in the state in which the instrument fixing frame was positioned with respect to the wall hole. The longitudinal cross-sectional view which shows the state in which the instrument frame was installed in the wall. The perspective view which shows an electric punch. (A) is a front view of the instrument fixing frame in 2nd Embodiment, (b) is CC sectional view taken on the line in Fig.8 (a). The front view of the instrument fixing frame which shows the state temporarily fixed by the wall back in the state in which the instrument fixing frame was positioned with respect to the wall hole. (A) is a partially enlarged perspective view showing a state where the tip of the minus driver is inserted into the engaging recess, and (b) is a longitudinal section showing a state where the tip of the minus driver is inserted into the engaging recess. Plan view. The longitudinal cross-sectional view which shows the state in which the instrument frame was installed in the wall. The front view which shows the state with which the 1st division body and other 1st division body in another embodiment were connected. The front view which shows the 1st division body in another embodiment. The front view of the instrument fixing frame which shows the state temporarily fixed by the wall back in the state in which the instrument fixing frame in another embodiment was positioned with respect to the wall hole. The front view which looked at the instrument fixing frame in another embodiment from the back surface. (A) is a front view showing a state in which the projection is pressed against the surface of the wall material, (b) is a front view showing a puncture mark of the projection, (c) is a front view showing a state in which a wall hole is drilled, d) The front view which shows the state which each protrusion latches in each inner surface of the four corners of a wall hole.

(First embodiment)
Hereinafter, a first embodiment in which the present invention is embodied in an instrument fixing frame will be described with reference to FIGS. Moreover, the fixture fixing frame 10 in this embodiment is installed on the back of the wall W in order to install one fixture frame H in a state where the switch S as a fixture is held on the wall W of the building.

First, the wall W will be described.
As shown in FIG. 6, the wall W is comprised by the pillar which is not shown in figure and a pair of wall material W1 standingly arranged by both front and back of the pillar. Further, a hollow portion K (back of the wall W) is formed between the pair of wall materials W1, and a cable C is disposed in the hollow portion K. In the present embodiment, a vertically long elliptical wall hole W2 is drilled at a desired position of the wall material W1 by using the electric drill 60 having a cup-shaped casing whose opening shape is a vertically long elliptical shape. .

  As shown in FIG. 7, the electric punch 60 includes a cup-shaped casing 61 whose opening shape at one end forms a vertically elliptical shape, and a shaft cylinder 62 is attached to the other end of the casing 61. A spindle (not shown) is rotatably supported by the shaft cylinder 62, and a drilling blade 63 is attached to one end of the spindle via a drive mechanism (not shown) disposed in the casing 61. An electric drill 64 as a drive source is attached to the other end.

  The perforating blade 63 is disposed in the casing 61 and rotates in a vertically long elliptical shape along the inner peripheral surface of the casing 61. The perforating blade 63 is made of an endless metal plate having a spring property, and one end side of the metal plate is attached to the drive mechanism, and a blade portion 63a is formed on the other end side of the metal plate. The blade portion 63 a of the drilling blade 63 is exposed to the outside of the casing 61 from the opening on one end side of the casing 61. And if the front-end | tip of the blade part 63a is contact | abutted to the surface of wall material W1, and the drilling blade 63 is rotated with the electric drill 64, the wall hole W2 will be drilled in wall material W1.

Next, the instrument fixing frame 10 will be described.
As shown in FIG. 1A, the instrument fixing frame 10 includes a frame body 11 made of a synthetic resin material formed in a square frame shape, and the frame body 11 is a plan view that constitutes three sides of the square frame. A U-shaped first divided body 21 and a second divided body 41 constituting one side of the rectangular frame are connected to each other.

First, the first divided body 21 will be described.
As shown in FIG. 2 (a), the first divided body 21 constitutes opposing sides of the frame body 11 in the longitudinal direction and extends in parallel to each other, and the upper frame portion 22 and the upper frame portion 22 and the lower frame portion 23, respectively. The 1st side frame part 24 which connects the base end of this and the base end of the lower frame part 23 is provided. The lengths of the upper frame portion 22 and the lower frame portion 23 in the extending direction from the first side frame portion 24 are the same, and the upper frame portion 22 and the lower frame portion 23 are the same as the first side frame portion 24. It extends in the direction orthogonal to. The outer surfaces on the front end side of the upper frame portion 22 and the lower frame portion 23 are formed in an arc shape so as to bulge outward.

  A pair of boss portions 25 as a pair of fixing portions are disposed opposite to each other inside the center portion of the upper frame portion 22 and the lower frame portion 23. Each boss portion 25 is formed with a circular boss hole 25 a penetrating in the thickness direction of the upper frame portion 22 or the lower frame portion 23. In addition, an insertion hole 25b (see FIG. 1) is formed at a position corresponding to the boss hole 25a on the surface facing the boss portions 25, and the inside of the insertion hole 25b communicates with the boss hole 25a. doing. A hexagonal nut (hereinafter simply referred to as a nut) N1 (refer to FIG. 1) made of a metal material is inserted into the insertion hole 25b, and the boss hole 25a and the nut N1 are superposed. A fixing screw B1 for fixing the instrument frame H holding the switch S to the pair of boss portions 25 can be screwed into the nut N1 through the boss hole 25a. Note that the fixing screw B1 can be screwed onto the nut N1 from both the front and back surfaces of the frame body 11 through the boss hole 25a.

  On the surfaces 221 and 231 (one end surfaces) of the upper frame portion 22 and the lower frame portion 23, a pair of locking projections 26 are provided outside the boss portions 25. Each locking projection 26 protrudes so as to extend in a direction perpendicular to the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23 and is curved in an arc shape so as to bulge outward with respect to each boss portion 25. Is formed. In addition, each locking projection 26 has an arcuate portion facing the long side of the wall hole W2 on the inner peripheral surface of the wall hole W2 on the entire side surface opposite to the boss portion 25 side of each locking projection 26. It is formed in a circular arc shape along each. That is, the curve drawn by the entire side surface of each locking projection 26 opposite to each boss portion 25 side is the same as the curve drawn by the opposing arc portions on the long side in the wall hole W2.

  Further, the vertices R1 and R2 of the curve drawn by the entire side surface of each locking projection 26 opposite to the boss portion 25 are located on a straight line L2 connecting the pair of boss holes 25a. Further, the distance between the vertices R1 and R2 is slightly shorter than the distance between the vertices R3 and R4 (see FIG. 5) of the arc portions facing each other on the long side in the wall hole W2. Therefore, each latching protrusion 26 has an arcuate portion facing the long side of the wall hole W2 on the inner peripheral surface of the wall hole W2 on the entire side surface opposite to each boss 25 side of each latching protrusion 26. It can be inserted inside the wall hole W2 so as to be along each.

  Further, on the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23, a belt-like double-sided tape T is attached as an adhesive portion on the outer side of each locking projection 26, and the long side direction is the upper frame portion 22. And it is stuck so that it may extend in the extending direction of the lower frame part 23. Note that the back surface of the double-sided tape T is attached to the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23, and a release paper (not shown) is attached to the surface. Each locking projection 26 protrudes from the surface of the double-sided tape T in the protruding direction from the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23 in the locking projection 26.

  On the front end (one end of the first divided body 21) side of the upper frame portion 22, a stepped portion 32 is provided to dent the back surface (other end surface) 222 of the upper frame portion 22 toward the front surface 221 side. The step portion 32 is formed in an arc shape so as to be recessed toward the proximal end side of the upper frame portion 22. Further, in the stepped portion 32, a locking end surface 32 a extending in a direction orthogonal to the extending direction of the upper frame portion 22 is formed on the outer surface side edge portion of the upper frame portion 22. The locking end surface 32 a faces the front end side of the upper frame portion 22.

  The upper frame portion 22 is provided with a first connecting portion 22 b at a portion from the step portion 32 to the tip of the upper frame portion 22. As shown in FIG. 2B, the thickness of the first connecting portion 22b is half of the thickness of the portion of the upper frame portion 22 excluding the first connecting portion 22b.

  A circular engagement hole 31 that penetrates in the thickness direction of the first connection portion 22b is formed in the first connection portion 22b as an engagement portion. The inner circumferential surface of the engagement hole 31 has the same diameter portion 31a having the same inner diameter as it goes from the front surface 221 to the rear surface 222 side of the upper frame portion 22, a step portion 31b having a smaller diameter than the same diameter portion 31a, and a step It is formed from an enlarged diameter portion 31c that inclines so that the inner diameter gradually increases from the portion 31b toward the back surface 222 side of the upper frame portion 22. The end surface on the surface 221 side of the upper frame portion 22 in the step portion 31b is a flat surface.

  As shown in FIG. 2A, a stepped portion 36 is provided on the front end of the lower frame portion 23 (the other end of the first divided body 21) so as to dent the front surface 231 of the lower frame portion 23 toward the back surface 232. ing. The step portion 36 is formed in an arc shape so as to be recessed toward the proximal end side of the lower frame portion 23. Further, in the stepped portion 36, a locking end surface 36 a extending in a direction orthogonal to the extending direction of the lower frame portion 23 is formed on the outer surface side edge portion of the lower frame portion 23. The locking end surface 36 a faces the front end side of the lower frame portion 23.

  The lower frame portion 23 is provided with a second connecting portion 23 b at a portion from the step portion 36 to the tip of the lower frame portion 23. As shown in FIG. 2B, the thickness of the second connecting portion 23b is half of the thickness of the lower frame portion 23 excluding the second connecting portion 23b.

  The second connecting portion 23b is provided with a pair of engaging protrusions 38 as engaged portions so as to face each other. The outer surface of each engagement protrusion 38 is curved in an arc shape so as to bulge outward, and the inner surface is curved in an arc shape so as to be recessed outward. Is arcuate in plan view.

  Each engaging protrusion 38 includes an extending portion 38a extending in a direction orthogonal to the surface of the second connecting portion 23b. Each engagement protrusion 38 is continuous with the extending portion 38a and is inclined so that the outer surface of the engagement protrusion 38 gradually increases in diameter as the distance from the surface of the second connecting portion 23b increases. A surface 38b is provided. Further, each engaging protrusion 38 is continuous with the first taper surface 38b and is inclined so that the outer surface of the engaging protrusion 38 gradually decreases in diameter as it is separated from the surface of the second connecting portion 23b. A tapered surface 38c is provided.

  Each first taper surface 38b has a diameter increased so as to be separated from each other, and each second taper surface 38c has a diameter reduced so as to approach each other. As shown in FIG. 2A, the arc drawn by the portion between each first taper surface 38b and each second taper surface 38c is on the same virtual circle M. The arc drawn by the side surface is located on a concentric circle of the virtual circle M. Each engagement protrusion 38 can be elastically deformed in a direction in which the base end of the extending portion 38a contacts and separates from each other.

  A pair of circular through holes 22a and 23a penetrating in the thickness direction of the upper frame part 22 and the lower frame part 23 are formed on the base end side of the upper frame part 22 and the base end side of the lower frame part 23. Has been. Here, the center point D1 of the virtual circle M and the center point D2 of the engagement hole 31 are located on a straight line L1 extending in parallel to the first side frame portion 24. Furthermore, the center points D3 and D4 of the pair of through holes 22a and 23a are located on a straight line L3 extending in parallel with the first side frame portion 24. And the straight line L2 which connects a pair of boss holes 25a exists in the position of the half of the distance between the straight line L1 and the straight line L3.

Next, the second divided body 41 will be described.
As shown in FIG. 3A, the second divided body 41 includes a rectangular plate-shaped second side frame portion 42 and a third curved portion that is curved in an arc shape so as to bulge outward from one end of the second side frame portion 42. The connection part 42a and the 4th connection part 42b which curves in an arc shape so that it may swell outward from the other end of the 2nd side frame part 42 are provided. The thickness from the front surface 421 (one end surface) to the back surface 422 (the other end surface) in the second side frame portion 42 is the portion of the upper frame portion 22 and the lower frame portion 23 excluding the first connection portion 22b and the second connection portion 23b. It is the same as the thickness.

  A stepped portion 43 is provided at the boundary between the second side frame portion 42 and the third connecting portion 42a so as to dent the front surface 421 of the second side frame portion 42 toward the back surface 422. The step portion 43 is formed along the outer surface on the front end side of the upper frame portion 22.

  As shown in FIG. 3B, the thickness of the third connecting portion 42a is half of the thickness from the front surface 421 to the back surface 422 of the second side frame portion 42. The outer side surface of the third connecting portion 42 a is formed along the circumference passing through the step portion 32. Further, as shown in FIG. 3A, a rotation restricting portion 45 that extends linearly in a direction orthogonal to the longitudinal direction of the second side frame portion 42 is formed on the outer surface of the third connecting portion 42a. Has been.

  The third connecting portion 42a is provided with a pair of engaging protrusions 46 as engaging portions extending in a direction orthogonal to the surface of the third connecting portion 42a so as to face each other. The engaging protrusions 46 are substantially the same in configuration as the engaging protrusions 38 provided in the second connecting portion 23b, and therefore the extending portions 46a and the first portions constituting the engaging protrusions 46 are provided. Detailed description of the tapered surface 46b and the second tapered surface 46c is omitted.

  At the boundary between the second side frame portion 42 and the fourth connecting portion 42b, a stepped portion 48 is provided to dent the back surface 422 of the second side frame portion 42 toward the front surface 421 side. The step portion 48 is formed along the outer surface on the front end side of the lower frame portion 23.

  As shown in FIG. 3B, the thickness of the fourth connecting portion 42 b is half of the thickness from the front surface 421 to the back surface 422 in the second side frame portion 42. The outer surface of the fourth connecting portion 42 b is formed along the circumference passing through the stepped portion 36. Further, as shown in FIG. 3A, a rotation restricting portion 50 extending linearly in a direction orthogonal to the longitudinal direction of the second side frame portion 42 is formed on the outer surface of the fourth connecting portion 42b. Has been.

  In the fourth connecting portion 42b, a circular engaging hole 51 penetrating in the thickness direction of the fourth connecting portion 42b is formed as an engaging portion. In addition, since this engagement hole 51 is substantially the same as the structure of the engagement hole 31 of the 1st connection part 22b, the detail of the same diameter part 51a which forms the engagement hole 51, the step part 51b, and the enlarged diameter part 51c. The detailed explanation is omitted.

  As shown in FIG. 1B, when connecting the first divided body 21 and the second divided body 41, first, the first connecting portion 22b and the third connecting portion 42a are polymerized, and a pair of The engagement protrusion 46 is inserted into the engagement hole 31. Then, each 2nd taper surface 46c contact | abuts to the enlarged diameter part 31c. When the pair of engaging protrusions 46 are further forcibly inserted into the engaging holes 31, each second tapered surface 46c slides along the diameter-expanded portion 31c. With the base end of the existing portion 46a as a base point, the engaging protrusions 46 are elastically deformed so as to approach each other. By this elastic deformation, each second taper surface 46c gets over the step portion 31b and is positioned in the same diameter portion 31a, and each first taper surface 46b engages with the step portion 31b. Accordingly, the pair of engaging protrusions 46 and the engaging holes 31 are engaged with each other, the first connecting portion 22b and the third connecting portion 42a are connected, and one end of the first divided body 21 is connected. One end of the second divided body 41 is connected to the second divided body 41.

  In a state where the first connecting portion 22b and the third connecting portion 42a are connected, the first tapered surface 46b and the step portion 31b are slidable. The connecting portion 22b and the third connecting portion 42a are pivotable with respect to the first divided body 21 with the connecting portion as a base point. That is, in this embodiment, the 1st connection part 22b and the 3rd connection part 42a function as a rotation part.

  As shown in FIG. 1 (a), the second divided body 41 is a side where the fourth connecting portion 42b is separated from the second connecting portion 23b with the connecting portion between the first connecting portion 22b and the third connecting portion 42a as a base point. When it is rotated to the right, the rotation restricting portion 45 comes into contact with the locking end surface 32a. Due to the contact between the rotation restricting portion 45 and the locking end surface 32a, the second divided body 41 is based on the connecting portion between the first connecting portion 22b and the third connecting portion 42a, and the fourth connecting portion 42b is the second connecting portion. Further rotation with respect to the first divided body 21 toward the side away from the two connecting portions 23b is restricted.

  In addition, the second divided body 41 is rotated to the side where the fourth connecting portion 42b approaches the second connecting portion 23b with the connecting portion between the first connecting portion 22b and the third connecting portion 42a as a base point, and the second connecting portion is connected. The portion 23 b and the fourth connecting portion 42 b are superposed and the pair of engaging protrusions 38 are inserted into the engaging holes 51. Then, each 2nd taper surface 38c contact | abuts to the enlarged diameter part 51c. When the pair of engagement protrusions 38 is further forcibly inserted into the engagement holes 51, the second tapered surfaces 38c slide along the diameter-expanded portion 51c. With the base end of the existing portion 38a as a base point, the engaging protrusions 38 are elastically deformed so as to approach each other. Due to this elastic deformation, each second tapered surface 38c gets over the stepped portion 51b and is positioned in the same diameter portion 51a, and each first tapered surface 38b engages with the stepped portion 51b. As a result, the pair of engaging protrusions 38 and the engaging holes 51 are engaged with each other, the second connecting portion 23b and the fourth connecting portion 42b are connected, and the other parts of the first divided body 21 are connected. The other end of the second divided body 41 is connected to the end.

  As shown in FIG. 5, when the second connecting portion 23b and the fourth connecting portion 42b are connected in a state where the first connecting portion 22b and the third connecting portion 42a are connected, the second divided body 41 is The tip of the upper frame portion 22 and the tip of the lower frame portion 23 are connected. In this state, the first side frame part 24 and the second side frame part 42 extend in parallel to each other. Thus, while the 1st connection part 22b and the 3rd connection part 42a are connected, the 2nd connection part 23b and the 4th connection part 42b are connected, and the 1st division body 21 and the 2nd division are connected. The body 41 is connected to the frame body 11. An insertion hole 12 serving as an opening is surrounded and formed in the central portion of the frame body 11 by the upper frame portion 22, the lower frame portion 23, the first side frame portion 24, and the second side frame portion 42.

  At this time, the surfaces 221, 231 of the upper frame portion 22 and the lower frame portion 23, the surface 241 of the first side frame portion 24, and the surface 421 of the second side frame portion 42 are located on the same plane, and these frames Of the surface of the main body 11, all the surfaces 221, 231, 241, 421 except for the locking protrusions 26 and the double-sided tape T function as contact surfaces. Further, the back surfaces 222 and 232 of the upper frame portion 22 and the lower frame portion 23, the back surface 242 of the first side frame portion 24 and the back surface 422 of the second side frame portion 42 are located on the same plane.

  When connecting the first divided body 21 and the second divided body 41, first, the second connecting portion 23b and the fourth connecting portion 42b are connected, and the second end of the first divided body 21 is connected to the second end. By connecting the other end of the divided body 41 and then connecting the first connecting portion 22b and the third connecting portion 42a and connecting one end of the second divided body 41 to one end of the first divided body 21. The frame body 11 may be configured.

  In this case, in a state where the second connecting portion 23b and the fourth connecting portion 42b are connected, the first tapered surface 38b and the stepped portion 51b are slidable, and the second divided body 41 is The second connecting portion 23b and the fourth connecting portion 42b are pivotable with respect to the first divided body 21 with the connecting point as a base point. That is, the 2nd connection part 23b and the 4th connection part 42b function as a rotation part.

  When the second divided body 41 is turned to the side away from the first connecting portion 22b with the connecting portion between the second connecting portion 23b and the fourth connecting portion 42b as a base point, the rotation restricting portion. 50 abuts on the locking end surface 36a. Due to the contact between the rotation restricting portion 50 and the locking end surface 36a, the second divided body 41 is based on the connection point between the second connecting portion 23b and the fourth connecting portion 42b, and the third connecting portion 42a is Further rotation with respect to the first divided body 21 toward the side away from the first connecting portion 22b is restricted.

  In a state where the insertion hole 12 is surrounded by the frame body 11, the engagement between the engagement protrusion 46 and the engagement hole 31 or the engagement between the engagement protrusion 38 and the engagement hole 51 is released, By rotating the two-piece body 41 with any one of the rotating portions as a base point, a part of the frame main body 11 is opened, and the enclosure of the insertion hole 12 by the frame main body 11 can be released. And the instrument mounting apparatus is comprised from the instrument fixing frame 10 of the said structure, and the electric punch 60. FIG.

  Next, a method of installing the switch S on the wall W using the instrument fixing frame 10 having the above configuration will be described. In addition, the instrument fixing frame 10 is in a state where the connecting portion between the first connecting portion 22b and the third connecting portion 42a is a rotating portion, and the second connecting portion 23b and the fourth connecting portion 42b are not connected. In addition, it is assumed that the release paper of the double-sided tape T has already been peeled off.

First, the wall hole W2 is drilled at a desired position of the wall material W1 using the electric punch 60, and the cable C disposed in the hollow portion K is pulled out from the wall hole W2 to the front side of the wall material W1.
Next, as shown in FIG. 4, the operator holds the instrument fixing frame 10 and sets the second divided body 41 based on the connection point between the first connection part 22 b and the third connection part 42 a. The four connecting portions 42b are rotated to the side away from the second connecting portions 23b. Then, the second connecting portion 23b and the fourth connecting portion 42b are separated from each other, the enclosure of the insertion hole 12 by the frame body 11 is released, and the insertion hole 12 is opened. Then, the second divided body 41 is inserted into the wall hole so that the opening edge of the wall hole W2 is located inside the frame body 11 through the gap between the second connection part 23b and the fourth connection part 42b. It inserts in the hollow part K via W2. At this time, the cable C is in a state of passing through the inside of the frame main body 11 through a gap between the second connecting portion 23b and the fourth connecting portion 42b.

  Next, while the opening edge of the wall hole W2 is positioned between the first divided body 21 and the second divided body 41, the first divided body 21 is moved to the upper frame portion 22 while the frame main body 11 is rotated. The first frame 24 and the lower frame 23 are inserted into the wall hole W2 in this order. Then, the whole frame main body 11 passes the wall hole W2, and the instrument fixing frame 10 is located in the hollow part K. Next, the operator rotates the second divided body 41 to the side where the fourth connecting portion 42b approaches the second connecting portion 23b, and superposes the second connecting portion 23b and the fourth connecting portion 42b. The pair of engaging protrusions 38 are inserted into the engaging holes 51. Thereby, in the hollow part K, the 2nd connection part 23b and the 4th connection part 42b are connected, and the frame main body 11 is assembled.

Next, as shown in FIG. 5, the operator can place the entire side surface opposite to each boss portion 25 side of each locking projection 26 on the inner peripheral surface of the wall hole W2 and the long side of the wall hole W2. Each of the locking projections 26 is inserted into the wall hole W2 while adjusting the position along each of the opposing arc portions. Then, the entire surface of the frame main body 11 abuts over the entire circumference of the peripheral edge of the wall hole W2 on the back surface of the wall material W1.

  Here, in a state where each locking projection 26 is inserted into the wall hole W2, when the frame main body 11 tries to move up, down, left and right with respect to the wall hole W2, what is the boss 25 side of each locking projection 26? The entire side surface on the opposite side is in surface contact with the arc portion facing the long side of the wall hole W2 on the inner peripheral surface of the wall hole W2, and the movement of the frame body 11 in the vertical and horizontal directions with respect to the wall hole W2 is restricted. . Further, the curve drawn by the entire side surface of each locking projection 26 opposite to the boss 25 side is the same as the curve drawn by the opposing arc portion on the long side of the wall hole W2. Therefore, the entire side surface of each locking projection 26 opposite to the boss 25 side does not move along the opposing portion on the short side of the wall hole W2, so that each locking projection 26 is a wall. The frame main body 11 will not rotate in the state inserted in the hole W2.

  Therefore, the frame main body 11 is positioned at an attachment position where the insertion hole 12 faces the wall W from the wall hole W2 without moving in the vertical and horizontal directions or the circumferential direction with respect to the wall hole W2. Furthermore, at the same time when the frame body 11 is positioned with respect to the wall hole W2, the double-sided tape T is adhered to the back surface of the wall material W1. Then, the frame main body 11 is temporarily fixed in a state of being positioned with respect to the wall hole W2.

  Next, as shown in FIG. 6, the cable C is connected to the switch S held in advance in the instrument frame H, the instrument frame H is arranged on the front side of the wall material W1, and the fixing screw B1 is attached to the instrument frame H. The nut N1 is tightened through the screw insertion hole H1, the wall hole W2, and the boss hole 25a. Thereby, the fixture fixing frame 10 is fixed to the back surface of the wall material W1 in a state where the wall material W1 is held together with the appliance frame H, and the switch S is installed on the wall W.

In the above embodiment, the following effects can be obtained.
(1) A pair of latches which are engaged with the arcs on the long side of the wall hole W2 on the inner peripheral surface of the wall hole W2 on the surfaces 221 and 231 of the upper frame part 22 and the lower frame part 23, respectively. A protrusion 26 is provided. And the side surface on the opposite side to each boss | hub part 25 side in each latching protrusion 26 is latched by each arc part which the long side in the wall hole W2 opposes. Then, the insertion hole 12 is disposed at a position facing the wall hole W2, and the movement of the frame main body 11 in the vertical and horizontal directions with respect to the wall hole W2 is restricted by the engagement of the locking projections 26 with the arc portion of the wall hole W2. can do. Therefore, the frame main body 11 does not move vertically and horizontally with respect to the wall hole W2 simply by inserting the locking projection 26 into the wall hole W2, and the insertion hole 12 faces the frame W at the mounting position facing the wall W from the wall hole W2. The body 11 can be positioned.

(2) On the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23, the double-sided tape T is adhered to the outer side of each locking projection 26, and each locking projection 26 is It protrudes from the double-sided tape T in the protruding direction. Therefore, after the frame main body 11 is positioned in the hollow portion K, the surface of the double-sided tape T is moved when the frame main body 11 is moved in the hollow portion K in order to position the frame main body 11 with respect to the wall hole W2. Before coming into contact with the back surface of the wall material W1, the tips of the locking projections 26 abut against the back surface of the wall material W1. And only when each latching protrusion 26 is inserted in the wall hole W2 and the frame main body 11 is positioned with respect to the wall hole W2, the double-sided tape T is stuck on the back surface of the wall material W1. Therefore, the locking protrusions 26 prevent the double-sided tape T from coming into contact with the back surface of the wall material W1 before the frame body 11 is positioned with respect to the wall hole W2. Therefore, the surface of the double-sided tape T when the frame body 11 is positioned with respect to the wall hole W2 by passing the frame body 11 through the wall hole W2 with the release paper of the double-sided tape T previously peeled off. The double-sided tape T can be attached to the back surface of the wall material W1 in a state where the adhesive force of the double-sided tape T is secured.

(3) In the pair of locking projections 26, the entire side surface of each locking projection 26 opposite to the side of each boss portion 25 is opposed to the long side of the wall hole W2 on the inner peripheral surface of the wall hole W2. It is formed in an arc shape so as to follow each arc portion. Therefore, for example, the contact area between the locking projection 26 and the inner peripheral surface of the wall hole W2 can be increased compared to the locking projection formed in a pin shape with a circular cross section, and the frame body 11 can be inserted into the insertion hole 12. Can be reliably positioned at the mounting position facing the wall W from the wall hole W2.

(4) On the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23, a double-sided tape T is adhered to the outside of each locking projection 26. Therefore, for example, the double-sided tape T is closer to each locking projection 26 than the case where the double-sided tape T is adhered to the surfaces 241 and 421 of the first side frame part 24 and the second side frame part 42. Since the frame main body 11 is moved in the hollow portion K, the double-sided tape T is easily protected by the locking protrusions 26 because the frame main body 11 is moved in the hollow portion K.

(5) For example, if the wall hole W2 is formed in a perfect circle shape, the frame main body 11 rotates even if each locking projection 26 is locked to the inner peripheral surface of the wall hole W2. However, in the present embodiment, the instrument fixing frame 10 is fixed using the vertically elliptical wall hole W <b> 2 formed using the electric punch 60. Therefore, it can prevent that the frame main body 11 rotates because the latching protrusion 26 latches to the circular arc part of the wall hole W2.

(6) The frame main body 11 is configured by connecting the first divided body 21 and the second divided body 41 to each other. Further, the first connecting portion 22 b provided in the upper frame portion 22 of the first divided body 21 is connected to the third connecting portion 42 a of the second divided body 41, and the lower frame portion 23 of the first divided body 21 is connected to the first connecting portion 22 b. The 4th connection part 42b of the 2nd division body 41 is connected with the provided 2nd connection part 23b. Then, by using the connecting portion between the first connecting portion 22b and the third connecting portion 42a as a rotating portion, the second divided body 41 is rotated to the side where the fourth connecting portion 42b is separated from the second connecting portion 23b. The enclosure of the insertion hole 12 by the frame body 11 can be released and the insertion hole 12 can be opened. The wall body 11 is rotated while the frame body 11 is rotated while the opening edge of the wall hole W2 is positioned inside the frame body 11 via the gap between the second connection portion 23b and the fourth connection portion 42b. By inserting into the hole W2, the whole frame main body 11 can be easily passed with respect to the wall hole W2. Further, in the hollow portion K, the second divided body 41 is rotated to connect the second connecting portion 23b and the fourth connecting portion 42b, thereby assembling the frame body 11 in the hollow portion K to form a rectangular frame. Can be made. Therefore, it is possible to prevent the strength of the frame body 11 itself from being lowered as compared with the fixture fixing frame formed in a substantially C shape.

(7) The frame main body 11 is configured by connecting the first divided body 21 and the second divided body 41 to each other. Therefore, for example, compared with the case where the frame main body 11 is composed of three or more divided bodies, it is possible to reduce the number of places where the divided bodies are connected, and before inserting the frame main body 11 into the wall hole W2, The troublesomeness when assembling the frame main body 11 in advance can be reduced.

(8) The frame main body 11 is configured by connecting the first divided body 21 and the second divided body 41 to each other. And if the 2nd division body 41 is rotated by making the connection location of the 1st connection part 22b and the 3rd connection part 42a into a rotation part, after arrange | positioning the frame main body 11 in the hollow part K, the 2nd connection part The frame main body 11 can be assembled only by connecting 23b and the 4th connection part 42b. Therefore, for example, in a state where the first divided body 21 and the second divided body 41 are separated, both are separately inserted into the wall hole W2, and the first divided body 21 and the second divided body are formed in the hollow portion K. Compared with the case where 41 is mutually connected, the assembly operation | work of the frame main body 11 in the hollow part K can be made easy.

(9) On the outer surfaces of the third connecting portion 42a and the fourth connecting portion 42b, rotation restricting portions 45, 50 extending linearly in a direction orthogonal to the longitudinal direction of the second side frame portion 42 are formed. ing. In addition, a locking end surface 32a extending in a direction perpendicular to the outer surface of the upper frame portion 22 or the lower frame portion 23 is provided on the outer surface side edge portion of the upper frame portion 22 or the lower frame portion 23 at the end surfaces of the step portions 32 and 36. , 36a are formed. For this reason, when the 2nd division body 41 rotates the 2nd division body 41 on the basis of a rotation part, and the enclosure of the penetration hole 12 by the frame main body 11 is cancelled | released, the rotation control parts 45 and 50 are latched. It abuts against the end surfaces 32 a and 36 a, and the second divided body 41 is restricted from rotating further with respect to the first divided body 21. Therefore, it is possible to prevent the second divided body 41 from rotating to a position far away from the first divided body 21 in the hollow portion K. As a result, the operation of engaging the pair of engaging protrusions 38 and 46 with the engaging holes 31 and 51 in the hollow portion K can be facilitated.

(10) When the second divided body 41 is rotated to release the enclosure of the insertion hole 12 by the frame main body 11, the rotation restricting portions 45 and 50 of the first divided body 21 are engaged with the locking end surfaces 32a and 36a. The second divided body 41 is restricted from rotating further with respect to the first divided body 21. By this rotation restriction, it is possible to restrict the gap between the first divided body 21 and the second divided body 41 from becoming too large. Therefore, for example, the operator holds the instrument fixing frame 10 in a state where the cable C is passed through the inside of the frame body 11 through the gap between the first divided body 21 and the second divided body 41. Thus, when the instrument fixing frame 10 is dropped when the frame main body 11 is passed through the wall hole W2, the instrument fixing frame 10 is easily caught on the cable C. Therefore, it can suppress that the instrument fixing frame 10 falls in the hollow part K.

(Second Embodiment)
A second embodiment in which the present invention is embodied in an instrument fixing frame will be described below with reference to FIGS. In the embodiment described below, the same components as those in the first embodiment described above are denoted by the same reference numerals, and the redundant description thereof is omitted or simplified.

As shown in FIG. 8A, a pair of elastic protrusions 55 are provided on the straight line L <b> 2 on the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23.
As shown in FIG. 8B, each elastic protrusion 55 includes an extending portion 55a extending in a direction orthogonal to the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23, and an extending portion 55a. And a protrusion 55b provided at the tip. The protrusion 55b is continuous with the extending portion 55a, is orthogonal to the extending direction of the extending portion 55a, and extends in a direction away from the boss portion 25. The protrusion 55b is continuous with the step portion 55c and has an upper frame. It is comprised from the inclined surface 55d which inclines toward the boss | hub part 25 side as it leaves | separates from the surface 221,231 of the part 22 and the lower frame part 23. As shown in FIG.

  And the inclined surface 55d is formed so that the protrusion amount of the protrusion 55b from the extension part 55a may decrease as it goes to the front-end | tip from the base end of the extension part 55a. In other words, the inclined surface 55d is formed such that the protrusion amount of the protrusion 55b increases from the distal end of the extending portion 55a toward the base end.

  In the extending portion 55a, the length along the extending direction from the base end of the extending portion 55a to the protrusion 55b is shorter than the thickness of the wall material W1. Further, in each projection 55b, when a portion where the stepped portion 55c and the inclined surface 55d intersect is a pointed end 55e, the distance Z1 between the upper and lower pointed end portions 55e is the arcuate portion facing the long side in the wall hole W2. Is slightly longer than the distance Z2 between the vertices R3 and R4 (see FIG. 9). Therefore, when the pair of elastic protrusions 55 are inserted into the wall hole W2, each protrusion 55b can bite into the inner peripheral surface of the wall hole W2 from the pointed end 55e side.

  In addition, on the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23, an engagement concave portion 56 is formed between the extending portion 55 a and the boss portion 25. The engaging recess 56 is formed to be continuous with the surface of the extending portion 55a opposite to the protruding side of the protrusion 55b. The engaging recess 56 is engageable with a tip portion of a minus driver 57 (see FIGS. 10A and 10B) as a tool.

  As shown in FIG. 8A, on the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23, two locking projections 58 are provided outside the boss portions 25 so as to sandwich the elastic protruding pieces 55 therebetween. Is provided. Each locking protrusion 58 protrudes so as to extend in a direction orthogonal to the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23 and is curved in an arc shape so as to bulge outward with respect to each boss portion 25. Is formed.

  In addition, each locking protrusion 58 has an arcuate portion facing the long side of the wall hole W2 on the inner peripheral surface of the wall hole W2 on the entire side surface opposite to the boss 25 side of each locking protrusion 58. It is formed in a circular arc shape along each. That is, the curve drawn by the entire side surface of each locking projection 58 opposite to the boss 25 side is the same as the curve drawn by the opposing arc portion on the long side of the wall hole W2.

  In the instrument fixing frame 10 having the above-described configuration, as shown in FIG. 9, the operator allows the entire frame main body 11 to pass through the wall hole W2 as in the first embodiment, so that the instrument fixing frame 10 is placed in the hollow portion K. The frame main body 11 is assembled by connecting the second connecting portion 23b and the fourth connecting portion 42b. Next, the operator makes the entire side surface opposite to each boss portion 25 side of each locking projection 58 on each of the opposing arc portions on the long side of the wall hole W2 on the inner peripheral surface of the wall hole W2. While adjusting the position so as to be along, each locking protrusion 58 and the elastic protrusion 55 are inserted into the wall hole W2. Then, the inclined surface 55d of the protrusion 55b comes into contact with the edge of the wall hole W2.

  Further, when each locking projection 58 and the elastic protrusion 55 are forcibly inserted into the wall hole W2, the inclined surface 55d comes into sliding contact with the edge of the wall hole W2. The piece 55 is inserted into the wall hole W2 while being elastically deformed toward the engagement recess 56 side with the base end of the extending portion 55a as a base point. The amount of elastic deformation of the elastic protrusion 55 gradually increases as the elastic protrusion 55 is inserted.

  Next, as shown in FIGS. 10A and 10B, the operator engages the engaging recess 56 with the tip of the minus driver 57, and the engaging recess 56 and the tip of the minus driver 57 The minus driver 57 is rotated toward the projecting side of each protrusion 55b with the engagement portion as a base point, and each extending portion 55a is pressed by the shaft portion of the minus driver 57. Accordingly, the shaft portion of the minus driver 57 functions as a pressing portion of the tool. Then, as shown in FIG. 11, each extending portion 55a returns to the original shape before being elastically deformed, and the pointed portion 55e side of the protrusion 55b is in a state of being bitten into the inner peripheral surface of the wall hole W2. Thereby, it is prevented that the frame main body 11 moves to the hollow part K side. When the elastic protruding piece 55 is inserted into the wall hole W2, if it returns to its original shape and the protrusion 55b bites into the inner peripheral surface of the wall hole W2, no pressing by the minus driver 57 is required. .

  Further, in the same manner as in the first embodiment, the cable C is connected to the switch S held in advance in the instrument frame H, the instrument frame H is arranged on the front side of the wall material W1, and the fixing screw B1 is connected to the instrument frame. The nut N1 is tightened through the H screw insertion hole H1, the wall hole W2, and the boss hole 25a. Thereby, the fixture fixing frame 10 is fixed to the back surface of the wall material W1 in a state where the wall material W1 is held together with the appliance frame H, and the switch S is installed on the wall W.

Therefore, according to the second embodiment, the following effects can be obtained in addition to the same effects as the effects (1) to (10) of the first embodiment.
(11) Elastic protrusions 55 are provided on the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23 of the frame body 11, and each elastic protrusion 55 can bite into the inner peripheral surface of the wall hole W2. A protrusion 55b is provided. Therefore, when the elastic protrusion 55 is inserted into the wall hole W2 while being elastically deformed, the protrusion 55b is caused to bite into the inner peripheral surface of the wall hole W2 by the force of returning the elastic protrusion 55 to the original shape. be able to. Therefore, the frame main body 11 can be prevented from moving toward the hollow portion K due to the protrusion 55b biting into the inner peripheral surface of the wall hole W2. That is, in addition to the up / down / left / right movement by the locking projection 58, the movement toward the hollow portion K can also be prevented.

(12) On the distal end side of the elastic projection piece 55, an inclined surface 55d that is inclined toward the boss portion 25 side as the distance from the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23 is formed. Therefore, since the tip of the protrusion 55b has a smaller protrusion than the base end, the tip of the protrusion 55b can be easily inserted into the wall hole W2. And since the protrusion amount of the protrusion 55b increases gradually, the extension part 55a can be elastically deformed by the protrusion 55b as the elastic protrusion 55 is inserted.

(13) An engaging recess 56 is formed between each boss portion 25 side surface of each extending portion 55 a and each boss portion 25. Accordingly, the tip of the minus driver 57 is engaged with the engaging recess 56, and the minus driver is directed toward the protruding direction of each projection 55b with the engagement portion between the engaging recess 56 and the tip of the minus driver 57 as a base point. 57 can be rotated. Therefore, compared with the case where the front end portion of the minus driver 57 is rotated without using the engagement recess portion 56, the rotation center is as much as the engagement recess portion 56 and the front end portion of the minus driver 57 are engaged. It is possible to stabilize and make it easier for the minus driver 57 to rotate.

In addition, you may change the said embodiment as follows.
As shown in FIG. 12, the instrument fixing frame 10 may be configured by connecting another first divided body 21 to the first divided body 21. At this time, the straight line L1 is a half of the distance between the straight line L2 connecting the pair of boss holes 25a in the first divided body 21 and the straight line L2 connecting the pair of boss holes 25a in the other first divided body 21. It is supposed to exist at the position. That is, the engagement holes 31 and the engagement protrusions 38 are half the mounting pitch of the switches S when the switches S having the same width are fixed to the pair of boss portions 25 and arranged on the wall W side by side. It is provided in the position. According to this, even when the other first divided body 21 is connected to the first divided body 21 to constitute the instrument fixing frame 10, the switch S is arranged in parallel with the interval between each pair of boss portions 25 being appropriate. can do.

In each of the above embodiments, the pair of boss portions 25 are provided inside the center portion of the upper frame portion 22 and the lower frame portion 23 of the first divided body 21 so as to face each other, but the present invention is not limited thereto. . For example, as shown in FIG. 13, the first divided body 71 includes an upper frame portion 72 and a lower frame portion 73 that form opposite sides of the frame body 11 and extend in parallel to each other, and a base end of the upper frame portion 72. A side frame portion 74 that connects the base end of the lower frame portion 73 is provided. Two pairs of boss portions 25 as fixed portions are provided inside the central portion of the upper frame portion 72 and the lower frame portion 73 so as to face each other. The interval between the adjacent boss portions 25 is such that the switch S having the same width is fixed to each pair of the boss portions 25 and can be juxtaposed on the wall W. Thus, a pair or more of the bosses 25 may be provided inside the central part of the upper frame part 22 and the lower frame part 23 of the first divided body 21. The frame main body 11 is connected by connecting the first divided body 71 provided in two pairs so that the boss portions 25 face each other and the first divided body 21 provided in a pair so that the boss portions 25 face each other. It may be configured.

In each of the embodiments described above, the locking projections 26 and 58 are configured such that the entire side surface of the locking projections 26 and 58 opposite to the boss portion 25 side is the wall hole W2 on the inner peripheral surface of the wall hole W2. However, the present invention is not limited to this. For example, as shown in FIG. 14, each locking projection 91 is formed in a pin shape having a circular cross section. It may be formed. In this case, the upper and lower frame portions 22 and 23 of the upper frame portion 22 and the lower frame portion 23 are positioned so that the respective locking projections 91 are located at the four points of the arc portions facing each other on the long side of the wall hole W2. Two pairs of locking projections 91 are preferably provided on the surfaces 221 and 231. In addition, each locking protrusion 91 may be elastically deformed, and a protrusion that can bite into the inner peripheral surface of the wall hole W <b> 2 may be formed on the distal end side of each locking protrusion 91.

○ For example, a square wall hole may be drilled manually using a saw. In this case, depending on the size of the perforated wall hole, each locking projection 26 cannot be inserted inside the wall hole, or the side surface of each locking projection 26 opposite to the boss portion 25 side, There may be a large gap between the inner surface of the wall hole. In such a case, the fixture fixing frame 10 is arranged so that the entire back surface of the frame body 11 on the side where the pair of locking projections 26 are not provided is brought into contact with the entire periphery of the wall hole W2 in the back surface of the wall material W1. You may change the direction.

  As shown in FIG. 15, four triangular pyramid-shaped protrusions 81 are provided on the back surface of the frame body 11. Each protrusion 81 is provided on the back surface of the frame main body 11 at a position separated from the straight line L2 by the same distance along the long side direction of the upper frame portion 22 and the lower frame portion 23. In addition, each protrusion 81 passes through the center of the long side direction of the first side frame portion 24 and the second side frame portion 42 and extends from the straight line L4 extending in a direction orthogonal to the straight line L2 to the first side frame portion 24. The second side frame portion 42 is provided at a position separated by the same distance along the long side direction. Further, each projection 81 is provided at a position spaced apart from each corner of the insertion hole 12 by a predetermined distance toward each corner of the frame body 11. In addition, each protrusion 81 is provided at a position spaced from the outer surface of the upper frame portion 22 or the lower frame portion 23 by a certain distance toward the insertion hole 12 side, and the protrusions 81 of the first side frame portion 24 or the second side frame portion 42. It is provided at a position spaced from the outer surface by a fixed distance toward the insertion hole 12 side. Further, each protrusion 81 is located closer to the outer surface of the upper frame portion 22 or the lower frame portion 23 than the boss hole 25a.

  A quadrangle is drawn by connecting adjacent protrusions 81 with a straight line, and the quadrangle is larger than the insertion hole 12. Further, when the four protrusions 81 are pierced into the surface of the wall material W1, the four corners of the wall hole W2 as the outer shape reference position of the wall hole W2 are marked on the surface of the wall material W1. That is, the back surface of the frame body 11 located outside the quadrilateral drawn by connecting adjacent protrusions 81 with a straight line comes into contact with the peripheral edge of the wall hole W2 on the back surface of the wall material W1.

  And as shown to Fig.16 (a), it arrange | positions in the predetermined position in the state which orient | assigned the back surface side of the frame main body 11 to the surface side of wall material W1, and presses the back surface of the frame main body 11 against the surface of wall material W1. . Then, each protrusion 81 pierces the surface of the wall material W1. Then, when the frame main body 11 is separated from the surface of the wall material W1, as shown in FIG. 16 (b), a puncture mark 87 of the protrusion 81 indicating the outer shape reference position of the wall hole W2 is formed on the surface of the wall material W1. Is done.

  Next, as shown in FIG. 16C, the wall material W <b> 1 is cut using a cutting tool such as a saw so as to connect the four puncture marks 87 with straight lines. Then, a quadrangular wall hole W2 is formed in the wall material W1. This wall hole W2 allows the frame body 11 to be inserted into the hollow portion K from the front side of the wall W through the wall hole W2 from the short side of the frame body 11 with the direction along the long side direction as the insertion direction. In addition, the boss portion 25 is sized to face the front side of the wall W through the wall hole W2.

  Then, as shown in FIG. 16D, the operator inserts each protrusion 81 into the wall hole W2 while adjusting the position of each protrusion 81 so as to contact each inner surface of the four corners of the wall hole W2. . Then, the part located outside the wall hole W2 on the back surface of the frame body 11 comes into contact with the peripheral edge of the wall hole W2 on the back surface of the wall material W1. Therefore, from the rear surface 422 of the second side frame portion 42 that constitutes the entire rear surface of the frame body 11, the rear surfaces 222 and 232 of the upper frame portion 22 and the lower frame portion 23, and the wall hole W 2 on the rear surface 242 of the first side frame portion 24. The part located outside also functions as a contact surface.

  Here, in a state where each projection 81 is inserted into the wall hole W2, each projection 81 is in surface contact with each inner surface of the four corners of the wall hole W2. For this reason, the movement of the frame main body 11 in the vertical and horizontal directions with respect to the wall hole W2 is restricted, and the insertion hole 12 is positioned at an attachment position facing the wall W from the wall hole W2.

  The nut N1 can be screwed into the fixing screw B1 from both the front and back surfaces of the frame body 11 through the boss hole 25a. Therefore, even if the instrument frame H is arranged on the front side of the wall material W1 with the back surface of the frame body 11 in contact with the back surface of the wall material W1, the fixing screw B1 is attached to the nut N1 through the boss hole 25a. By tightening, the switch fixing frame 10 can be fixed to the back surface of the wall material W1 while the wall material W1 is held together with the device frame H, and the switch S can be installed on the wall W.

In the first embodiment, the entire locking protrusion 26 is an elastic protrusion that can be elastically deformed with its base end as a base point, and a protrusion as in the second embodiment at the tip of the locking protrusion 26. 55b may be provided.

In the first embodiment, a part of the locking projection 26 is an elastic protruding piece that can be elastically deformed with the base end as a base point, and the second embodiment A protrusion 55b as in the form may be provided.

In the second embodiment, the engaging recess 56 is formed so as to be continuous with the surface of the extending portion 55a opposite to the protruding side of the protrusion 55b, but is not limited thereto. For example, the engaging recess 56 is not continuous with the surface of the extending portion 55a opposite to the protruding side of the protrusion 55b, and the engaging recess 56 and the extending portion 55a are opposite to the protruding side of the protrusion 55b. The engaging recess 56 may be formed so that a step is formed between the surface and the surface.

In each of the above embodiments, the double-sided tape T is adhered to the outer side of each of the locking projections 26 on the surfaces 221 and 231 of the upper frame portion 22 and the lower frame portion 23. However, the present invention is not limited to this. You may stick the double-sided tape T on the surface 241,421 of the frame part 24 and the 2nd side frame part 42. FIG.

In the above embodiments, the double-sided tape T may be deleted.
In each of the above embodiments, the engagement state between the engagement protrusion 46 and the engagement hole 31 and the engagement state between the engagement protrusion 38 and the engagement hole 51 cannot be released. May be. That is, the first divided body 21 and the second divided body 41 may not be separated from each other.

In each of the above embodiments, the frame body 11 is formed in a square frame shape, and includes a first divided body 21 having a U-shape in plan view that forms three sides, and a second divided body 41 that forms one side. However, it is not limited to this. For example, the frame main body 11 may be configured by an arc-shaped first divided body partly separated from each other and an arc-shaped second divided body that connects the separated parts in the first divided body.

In each of the above embodiments, the frame body 11 is formed in a square frame shape, and includes a first divided body 21 having a U-shape in plan view that forms three sides, and a second divided body 41 that forms one side. However, the present invention is not limited to this. For example, the frame main body 11 may be composed of two L-shaped divided bodies.

(Circle) the frame main body 11 may be comprised from the 3 or more division body.
In each of the above-described embodiments, the frame main body 11 is configured by connecting the first divided body 21 and the second divided body 41 to each other. The frame body 11 itself may be formed in a square frame shape in advance without assembling the above components.

In each of the above embodiments, when the second divided body 41 is rotated, the rotation restricting portions 45 and 50 of the first divided body 21 come into contact with the locking end surfaces 32a and 36a, and the second divided body 41 is the first divided body 41. Further rotation with respect to the divided body 21 is restricted. In addition to this, when the second divided body 41 is restricted from rotating with respect to the first divided body 21, the connection portion of the second divided body 41 with the first divided body 21 is fixed. The rotation of the second divided body 41 relative to the first divided body 21 may be fixed.

In each of the above embodiments, when the second divided body 41 is rotated, the rotation restricting portions 45 and 50 of the first divided body 21 come into contact with the locking end surfaces 32a and 36a, and the second divided body 41 is the first divided body 41. Although further rotation with respect to the divided body 21 is restricted, the present invention is not limited to this. For example, the configuration of the rotation restriction in the second divided body 41 may be deleted and the second divided body 41 may be rotated until the second divided body 41 is greatly separated from the first divided body 21.

In each of the above embodiments, the shape of the wall hole W2 drilled in the wall material W1 is a vertically long oval shape. However, the shape is not limited to this, and for example, a portion of a vertically long rectangular shape, an oval shape, or a perfect circle overlaps Thus, it may be a wall hole formed by partially polymerizing two substantially bowl-shaped or plural circular perforations.

In each of the above embodiments, the instrument attached to the instrument frame H is the switch S. However, the instrument attached to the instrument frame H is not limited to this, and may be, for example, an outlet or an alarm.

○ When an alarm device is applied as an instrument, the alarm device is directly fixed to the boss 25, and the wall material W1 is sandwiched between the alarm device and the instrument fixing frame 10 so that the alarm device is installed on the wall W. It may be.

The present invention is embodied in the fixture fixing frame 10, but is not limited thereto, and may be embodied in a bottomed square box-like wiring box having an opening on one side and long in the vertical direction.
Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.

(A) The frame body is configured by connecting a plurality of divided bodies, and at least one of the connection points of the divided bodies is released from the enclosure of the insertion hole by the frame body. In order to open, the rotation part which makes one end of the division body rotatable is provided, and the other end of the division body which is adjacent to the rotation part and is rotated around the rotation part is connected. The instrument mounting member according to claim 5, wherein an engagement portion and an engaged portion for engaging the divided bodies are provided at a connection portion to be connected.

(B) The frame mounting body according to the technical idea (a), wherein the frame body is configured by connecting two divided bodies.
(C) The frame body is formed in a square frame shape, and includes a first U-shaped first divided body that forms three sides and a second divided body that forms one side, and the first divided body. The instrument mounting member according to the technical idea (A) or the technical idea (B), wherein the fixing part is provided on opposite sides.

(D) The first divided body and the second divided body are configured to be separable, and an engagement portion is provided at one end of the first divided body to which one end of the second divided body can be engaged. An engaged portion capable of engaging with the other end of the second divided body is provided at an end, and the engaging portion and the engaged portion of the first divided bodies are engaged with each other, The one-divided bodies can be connected to each other, and the engaging portion and the engaged portion are provided at a position that is half of the mounting pitch of the instrument arranged in parallel from the fixing portion. The instrument mounting member according to any one of the technical ideas (A) to (C).

(E) The technique described above, wherein a rotation restricting portion for restricting the rotation of the divided body is provided at a place where the rotating portion is provided at a connecting portion of the divided bodies. The instrument mounting member according to any one of (i) to (d).

B1 ... Fixing screw, W ... Wall, W1 ... Wall material, W2 ... Wall hole, H ... Instrument frame, S ... Switch as instrument, T ... Double-sided tape as sticking part, 10 ... Instrument fixing as instrument mounting member Frame 11, Frame body 12, Insertion hole as opening 21, 71, First divided body 22 b First connection portion functioning as rotation portion 23 b Second connection portion functioning as rotation portion 25, a boss portion as a fixed portion, 26, 58, 91, a locking projection, 31, 51, an engagement hole as an engagement portion, 38, 46, a pair of engagement protrusions as an engaged portion, 41 ... 2nd division body, 42a ... 3rd connection part which functions as a rotation part, 42b ... 4th connection part which functions as a rotation part, 45, 50 ... rotation control part, 55 ... Elastic protrusion, 55b ... Projection, 55d ... inclined surface, 56 ... engagement recess, 57 ... flat screwdriver as tool, 60 ... electric Anagu, 221,231,241,421 ... functional surface as a contact surface.

Claims (2)

At least one pair of fixed portions that have openings and are opposed to each other are provided, and are arranged on the back of the wall through a wall hole formed by partially overlapping an elliptical wall hole or a plurality of circular holes in the wall material. In addition, by using the fixing portion to install the instrument or the instrument frame of the instrument on the wall surface, the wall member is placed in the state where the opening portion faces the wall surface through the wall hole. An instrument mounting member sandwiched between the instrument frames and fixed to the back of the wall,
A frame body having a front surface and a back surface and having an insertion hole through which the instrument is inserted as the opening,
The frame main body has a contact surface on the surface that contacts the periphery of the wall hole on the back surface of the wall material, and at least locking protrusions that lock to each of the opposing arc portions on the inner peripheral surface of the wall hole. formed to protrude on the front surface having the abutment surface,
Contact surface of the second is formed on the back surface of the frame body, and a second abutment surface may abut against the peripheral edge of the wall hole in the back surface of the wall material, the locking projections An instrument mounting member that protrudes only on the front surface side of the frame body, and that the fixing portion can be screwed into the fixing screws from both the front and back sides of the frame body. Four conical projections for forming four puncture marks on the wall material are provided on the back surface of the frame body, and are located outside a quadrangle drawn by connecting adjacent projections with a straight line. The instrument mounting member according to claim 1, wherein a back surface of the frame body forms the second contact portion.

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