JP5715489B2 - Instrument mounting frame - Google Patents

Description

  The present invention is arranged on the back side of the wall material through a wall hole formed in a square shape in the wall material, and the wiring device is installed on the wall material using the attachment portion, so that the back side of the wall material It is related with the fixture mounting frame installed in.

  As this type of instrument mounting frame, for example, a pinch fitting disclosed in Patent Document 1 can be cited. As shown in FIG. 8A, the pinch metal fitting 80 of Patent Document 1 includes a pair of side portions 81 that are vertically opposed to each other and a connecting portion 82 that connects one end portions of the side portions 81 in the long side direction. And an opening 83 is formed on the other side of the side portion 81 in the long side direction. And the pinch metal fitting 80 is formed in a U-shape so that it can easily pass through the wall hole 90a of the wall member 90 and is formed on the back side of the wall member 90 as compared with the case where it is formed in a bottomed square box shape. It can be easily arranged.

  The connecting portion 82 has two temporary fixing holes 82a. An L-shaped temporary stopper 84 is inserted into the temporary fixing hole 82a. As shown in FIG. 8 (b), the temporary fixing tool 84 has an elongated plate-like insertion portion 84a inserted into the temporary attachment hole 82a, and a wall at the time of insertion of the insertion portion 84a into the temporary attachment hole 82a. And a thin plate-like contact portion 84b that contacts the surface of the material 90. Further, as shown in FIG. 8A, a screw hole 81 a is formed on the other end side of each side portion 81.

  When a wiring device (not shown) is installed on the wall member 90 using the pinch metal fitting 80, the pinch metal piece 80 is disposed on the back side of the wall material 90 via a rectangular wall hole 90a formed in the wall material 90. Is done. Then, by inserting the insertion portion 84a of the temporary fixing tool 84 into the temporary fixing hole 82a of the connecting portion 82, the wall member 90 is sandwiched between the abutting portion 84b of the temporary fixing tool 84 and the clip metal fitting 80. The sandwiching metal 80 is temporarily fixed to the back side of the wall material 90.

  Thereafter, an attachment frame (not shown) holding the wiring device is arranged on the front side of the wall member 90, and the screw inserted through the attachment frame is screwed into the screw hole 81a of the clip metal fitting 80 to By holding the wall member 90 between the metal fitting 80 and the attachment frame, the wiring device held by the attachment frame is installed on the wall member 90.

Japanese Utility Model Publication No. 4-111220

  By the way, in the pinching metal fitting 80 of Patent Document 1, the wall material 90 is temporarily fixed to the back side by sandwiching the wall material 90 between the two temporary fasteners 84 and the pinching metal fitting 80. And, in the clamp fixture 80 that is temporarily fixed, the clamp fixture 80 moves in the contact direction only when the insertion portion 84a of the temporary fastener 84 contacts the inner surface of the opposing wall hole 90a. Be regulated. However, there is a problem in that the movement of the clamp 80 cannot be restricted in other directions other than the contact direction.

  The present invention has been made in view of the above-described conventional problems, and the object thereof is an instrument that can be easily arranged on the back side of the wall material and can regulate movement on the back side of the wall material. It is to provide a mounting frame.

In order to solve the above problem, the invention according to claim 1 is provided with at least one pair of attachment portions for attaching the wiring device to the frame body, and through a wall hole formed in a square shape in the wall material. Is disposed on the back side of the wall material, and the wiring device is installed on the wall material using the attachment portion, thereby being a device mounting frame installed on the back side of the wall material, The frame body is formed of a pair of sandwiching pieces and a connecting piece that connects one end part in the long side direction of the sandwiching piece, and is formed in a U-shape in which the other end side of the sandwiching piece is opened. The frame main body has a contact surface that contacts a peripheral edge of the wall hole on the back surface of the wall material on one side surface of the main body, and is erected from the one side surface and contacts the four inner side surfaces of the wall hole. has a regulating portion for regulating movement of said regulating portion, one end of the longitudinal direction of the clamping piece And a second restricting portion formed on the other end side in the long side direction of the sandwiching piece, the first restricting portion corresponding to the width of the connecting piece. The gist is that the second restricting portion is disposed so as to protrude outward from the other end of the clamping piece .

According to the second aspect of the present invention , at least a pair of attachment portions for attaching the wiring device is provided in the frame body, and the frame body is disposed on the back side of the wall material through a wall hole formed in a square shape in the wall material. In addition, the wiring device is installed on the wall material using the attachment portion, so that the device mounting frame is installed on the back side of the wall material, and the frame body includes a pair of clamping pieces, And a connecting piece for connecting one end portion in the long side direction of the sandwiching piece, and the other end side of the sandwiching piece is formed in an open U shape, and the wall material is formed on one side surface of the frame body. A contact surface that contacts the peripheral edge of the wall hole on the back surface of the wall hole, and has a restricting portion that is erected from the one side surface and that contacts the four inner side surfaces of the wall hole to restrict the movement of the frame body. and protrudes outward the regulating portion from the long side direction of the other end of the clamping piece and the clamping And summarized in that the length along the longitudinal direction of the strip is formed to a width the same width or a width shorter of the wall hole.

  According to a third aspect of the present invention, in the instrument mounting frame according to the first or second aspect, a plurality of the restricting portions are provided so as to be arranged inside the corners of the wall hole, and each restricting portion is provided. The gist is that the portion abuts on adjacent inner side surfaces forming the corner portion.

  ADVANTAGE OF THE INVENTION According to this invention, while being easily arrangeable on the back side of a wall material, the movement on the back side of a wall material can be controlled.

The perspective view which shows the instrument mounting frame and instrument holding frame of embodiment. (A) is a front view which shows an instrument mounting frame, (b) is the 2b-2b sectional view taken on the line of Fig.2 (a). The front view which shows the state which has arrange | positioned the instrument mounting frame on the back side of wall material. Fig. 4 is a cross-sectional view taken along line 4-4 of Fig. 3 showing a state in which the instrument mounting frame is disposed on the back side of the wall material. (A) is a front view showing a state in which the instrument mounting frame is pressed against the wall material, (b) is a cross-sectional view showing a state in which the ruled projection is bitten into the wall material, and (c) is a projection displayed on the wall material The front view which shows a trace and a ruled line. The perspective view which shows the state which assembled | attached the instrument holding frame to the instrument mounting frame. Sectional drawing which shows the state which installed the wiring apparatus in the wall material. (A) is a front view which shows the pinch | metal fitting of background art, (b) is a perspective view which shows the temporary fastener in background art.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the instrument mounting frame 11 is disposed and used on the back side of the wall material W through a wall hole Wa formed in the wall material W in order to install the wiring instrument H on the wall material W. Is. The wall hole Wa has a vertically long rectangular shape, and is surrounded by an upper side surface W1, a lower side surface W2, a right side surface W3, and a left side surface W4 which are four inner side surfaces.

  The frame main body 12 of the instrument mounting frame 11 is formed in a vertically long U-shape from a synthetic resin material, and has a vertically sandwiching piece 13 and one end portion in the long side direction of both the sandwiching pieces 13 (the left end in FIG. 1). Part) and a connecting piece 14 that connects each other. In the frame main body 12, the long side direction of the connecting piece 14 is the long side direction, and the long side direction of the sandwiching piece 13 is the short side direction of the frame main body 12. An opening 15 is enclosed and formed inside the frame body 12 from the pair of sandwiching pieces 13 and the connecting piece 14. As shown in FIG. 3, the opening 15 is open at the other end side (the right end side in FIG. 3) in the long side direction of the both sandwiching pieces 13.

  The length L1 of the opening 15 in the long side direction is shorter than the length N1 of the wall hole Wa in the long side direction. The length L2 of the opening 15 in the short side direction is also shorter than the length N2 of the wall hole Wa in the short side direction. Further, in the frame main body 12, the length T1 of the connecting piece 14 in the long side direction is longer than the length N1 of the wall hole Wa in the long side direction, and the frame main body 12 has a length T1 in the long side direction. The length T2 is the same as the opening width of the wall hole Wa, that is, the length N2 in the short side direction.

  In the frame main body 12, a portion of the entire front surface (one side surface) having a vertically long U-shape excluding the edge portion on the opening 15 side of the sandwiching piece 13 extends from the back side of the wall material W to the back surface of the wall material W. It is the contact surface 12a which contacts. The abutting surface 12a has a vertically long U-shape, and on the back surface of the wall material W, the peripheral edge of the wall hole Wa, specifically, the edge along the upper side surface W1, the lower side surface W2, and the left side surface W4. It comes to contact. As shown in FIGS. 1, 2 (a) and 2 (b), a pair of locking projections 17 having a thin plate shape are projected forward one by one on the front surface of both clamping pieces 13 (the front surface of the frame body 12). In addition, each locking projection 17 is elastically deformable. At the tips of the upper locking projections 17, the claw pieces 17 a are formed so as to be pointed upward, and at the tips of the lower locking projections 17, the claw pieces 17 a are directed downward. It is formed to be pointed according to.

  On the front face of both sandwiching pieces 13 (the front face of the frame main body 12), a first restricting protrusion as a restricting portion having a thin plate shape is formed outside each locking protrusion 17 along the long side direction of the sandwiching piece 13. 18a and the 2nd control protrusion 18b are protrudingly provided toward the front. Each of the first and second restricting protrusions 18a and 18b has a rectangular plate shape, the long side direction extends in the long side direction (left and right direction) of the sandwiching piece 13, and the short side direction with respect to the frame body 12 It is formed to extend in the front-rear direction. The first restricting protrusions 18 a and the second restricting protrusions 18 b formed on each sandwiching piece 13 are positioned on the same plane S extending in the long side direction of the sandwiching piece 13. Furthermore, the length of the first and second restricting protrusions 18a, 18b in the short side direction (projection length from the contact surface 12a) is shorter than the thickness of the wall material W (thickness of the wall hole Wa). ing.

  The first restricting protrusion 18a is formed on one end (left end) in the long side direction of each sandwiching piece 13, and the second restricting protrusion 18b is the other end in the long side direction (right end) of each sandwiching piece 13. Formed on the side. Specifically, the first restricting protrusion 18 a is formed inward by the width of the connecting piece 14 from one end of each holding piece 13 in the long side direction. On the other hand, the 2nd control protrusion 18b is formed so that the other end of the long side direction of each clamping piece 13 may protrude outward.

  As shown in FIGS. 2A and 3, the upper surfaces of the upper first and second restricting protrusions 18a and 18b and the lower surfaces of the lower first and second restricting protrusions 18a and 18b. The distance K1 between them is slightly shorter than the length N1 in the long side direction of the wall hole Wa. Furthermore, the distance K2 between the outer end (left end) of the first restricting protrusion 18a and the outer end (right end) of the second restricting protrusion 18b is greater than the length N2 of the wall hole Wa in the short side direction. It is slightly shorter and is the same as the length T2 of the sandwiching piece 13 in the long side direction.

  And when the 1st control protrusion 18a and the 2nd control protrusion 18b of each clamping piece 13 are assumed to be the bundled regulation member R extended in the long side direction of the clamping piece 13, it is the same as the clamping piece 13. The length regulating member R is disposed at a position displaced along the long side direction of the sandwiching piece 13. Specifically, the regulating member R is disposed at a position displaced inward by the width of the connecting piece 14 along the long side direction of the sandwiching piece 13. Further, when the first and second restricting protrusions 18a and 18b are inserted into the wall hole Wa, the restricting protrusions 18a and 18b are positioned inside the corners of the wall hole Wa. .

  On the front surface of the first restricting protrusion 18a provided on one end side in the long side direction of the sandwiching pieces 13, the ruled line protrusions 18c protrude forward on the upper and lower sides of the outer end (left end) in the long side direction. It is installed. Further, on the front surface of the second restricting protrusion 18b provided on the other end side in the long side direction of the sandwiching pieces 13, the ruled line projections 18c are provided on the upper and lower sides of the outer end (right end) in the long side direction. It is projecting toward. Each ruled line projection 18c has a triangular pyramid shape, and is formed so as to point toward the front. When the four restricting protrusions 18a and 18b are inserted into the wall hole Wa, the ruled line projections 18c are positioned inside the corners of the wall hole Wa.

  In each clamping piece 13, a screw hole 19 is formed through the frame body 12 in the thickness direction between a pair of locking protrusions 17 adjacent to the left and right. A nut (not shown) is fitted into the screw hole 19 so as not to move in the thickness direction of the frame body 12, and a female screw is formed on the inner peripheral surface of the screw hole 19 by the nut. Therefore, in this embodiment, the attachment part is formed by the screw hole 19 and the nut. The frame main body 12 is formed with a locking projection 17, first and second regulating projections 18 a and 18 b, and a screw hole 19 to form the instrument mounting frame 11.

Next, the appliance holding frame 20 that holds the wiring appliance H will be described.
As shown in FIG. 1, the device holding frame 20 is formed in a vertically long rectangular frame shape, and a vertically long rectangular holding hole 21 is formed inside the device holding frame 20. Note that the length M1 of the instrument holding frame 20 in the long side direction is longer than the length N1 of the wall hole Wa in the long side direction. On the other hand, the length M2 of the instrument holding frame 20 in the short side direction is shorter than the length N2 of the wall hole Wa in the short side direction. A horizontally long insertion hole 22 is formed in both the upper and lower portions of the instrument holding frame 20 so as to penetrate the instrument holding frame 20 in the thickness direction.

Next, a method of installing the wiring device H on the wall material W using the device mounting frame 11 and the device holding frame 20 will be described.
First, as shown in FIGS. 5 (a) and 5 (b), on the surface of the wall material W, four ruled projections 18c are located inside the four corners of the wall hole Wa at a position where the wall hole Wa is formed. The instrument mounting frame 11 is arranged so as to be positioned, and the instrument mounting frame 11 is pressed against the surface of the wall material W so that the four ruled line projections 18 c are bitten into the surface of the wall material W. As shown in FIG. 5C, when the instrument mounting frame 11 is removed from the wall material W, projection marks P are formed at the positions where the four ruled-line projections 18c are bitten. Then, when the four protrusion traces P are connected by a linear ruled line Q, the outline of the wall hole Wa is marked on the wall material W. Thereafter, the wall material W is cut along the ruled line Q, so that a wall hole Wa is formed in the wall material W.

  Next, as shown in FIG. 6, the wiring device H is held in the holding hole 21 of the device holding frame 20, and the screw 23 is inserted into the insertion hole 22 on the upper side of the device holding frame 20. Then, the screw 23 is inserted into the screw hole 19 on the upper side of the instrument mounting frame 11 and is screwed into the nut to temporarily fix the instrument mounting frame 11 and the instrument holding frame 20. Then, the instrument mounting frame 11 and the instrument holding frame 20 are connected to each other so as to be rotatable about the screw 23 as a rotation axis. Further, a cable K is connected to each wiring device H.

  Then, while the instrument holding frame 20 is disposed on the front side of the wall material W, only the instrument mounting frame 11 is passed through the wall hole Wa. At this time, the instrument mounting frame 11 is rotated with the screw 23 as the center of rotation so that the opening edge of the wall hole Wa is positioned in the opening 15, and the instrument mounting frame 11 is passed through the wall hole Wa. When the instrument mounting frame 11 is arranged on the back side of the wall material W, the instrument holding frame 20 is arranged on the front side of the wall material W, and the instrument mounting frame 11 is placed on the back side of the wall material W by screws 23. Supported.

  Subsequently, on the back side of the wall material W, the contact surface 12a of the instrument mounting frame 11 is brought into contact with the back surface of the wall material W, and the four restricting protrusions 18a and 18b are inserted into the wall hole Wa. As shown in FIG. 3, in the upper first and second restricting protrusions 18a and 18b, the right second restricting protrusion 18b has an upper surface in contact with the upper side surface W1 of the wall hole Wa and a right side. The end abuts on the right side W3 adjacent to the upper side W1. The upper left surface of the second restricting protrusion 18b is in contact with the upper side surface W1 of the wall hole Wa, and the left end is in contact with the left side surface W4 adjacent to the upper side surface W1.

  In the lower first and second restricting protrusions 18a and 18b, the right second restricting protrusion 18b is supported so that the lower surface is in contact with the lower surface W2 of the wall hole Wa and the right end is It contacts the right side W3 adjacent to the lower side W2. The lower surface of the left first restricting protrusion 18a is abutted and supported on the lower side surface W2 of the wall hole Wa, and the left end is in contact with the left side surface W4 adjacent to the lower side surface W2.

  In the state where the four restricting protrusions 18a and 18b are inserted into the wall hole Wa, the lower first and second restricting protrusions 18a and 18b are supported by the lower side surface W2 of the wall hole Wa. Thus, the instrument mounting frame 11 is positioned on the wall material W. In this positioning state, of the contact surfaces 12a of the frame main body 12, the contact surfaces 12a at the both sandwiching pieces 13 are in contact with the upper and lower edges of the wall hole Wa and the contact surfaces 12a at the connecting piece 14 are. The whole is in contact with the left edge of the wall hole Wa. Further, the opening 15 of the instrument mounting frame 11 faces the front side of the wall material W from the wall hole Wa, and the screwing hole 19 faces the front side of the wall material W from the wall hole Wa.

  Further, as shown in FIG. 4, each claw piece 17a of the upper locking projection 17 is bitten into the upper side surface W1 of the wall hole Wa and locked, and each claw of the lower locking projection 17 is locked. The piece 17a is bitten into the lower surface W2 of the wall hole Wa to be locked. Then, the locking of each claw piece 17a restricts the instrument mounting frame 11 from falling to the back side of the wall material W.

  Subsequently, as shown in FIG. 7, the screw 23 screwed into the upper nut is further screwed into the instrument mounting frame 11. Further, the screw 23 is inserted into the lower insertion hole 22 of the instrument holding frame 20, and the screw 23 is screwed into the nut of the lower screw hole 19 of the instrument mounting frame 11. When both the screws 23 are tightened, the instrument holding frame 20 is attracted to the wall material W as the screws 23 are screwed into the nuts, and both the holding pieces 13 of the instrument mounting frame 11 and the instrument holding frame 20 are A wall material W is sandwiched between the upper and lower portions. When the screw 23 is screwed into the nut, the wiring device H is installed on the front side of the wall material W, so that the device mounting frame 11 is installed on the back side of the wall material W. At this time, the contact surface 12 a of the frame body 12 contacts the peripheral edge of the wall hole Wa on the back surface of the wall material W.

Next, the operation of the instrument mounting frame 11 will be described.
In the instrument mounting frame 11, the length T2 of the clamping piece 13 in the long side direction is the same as the width of the wall hole Wa (length N2 in the short side direction). For this reason, the operation | work which passes the instrument attachment frame 11 through the wall hole Wa is performed easily. Further, in a state where the four restricting protrusions 18a and 18b are inserted into the wall hole Wa, the restricting protrusions 18a and 18b come into contact with the four inner side surfaces W1 to W4 of the wall hole Wa. For this reason, even if a force that moves the frame main body 12 in any of the up, down, left, and right directions is applied, each of the restricting protrusions 18a and 18b abuts on the inner side surfaces W1 to W4 at the tip of the moving direction The movement of the frame body 12 in the vertical and horizontal directions is restricted. As a result, the instrument mounting frame 11 is positioned at a position where the opening 15 and the screw hole 19 face the front side of the wall material W, so that the screw 23 can be easily screwed into the nut of the instrument mounting frame 11. Can do.

  Further, in the two clamping pieces 13, the length in the long side direction of the regulating member R composed of the first regulating projection 18a and the second regulating projection 18b is the width of the wall hole Wa (in the short side direction). Length N2). Further, the restricting member R is disposed so as to be displaced toward the other end along the long side direction of the sandwiching piece 13. For this reason, in a state where the four restricting protrusions 18a and 18b are in contact with the inner side surfaces W1 to W4 of the wall hole Wa, the entire connecting piece 14 is in contact with the back surface of the wall hole Wa, and the connecting piece 14 is in the wall hole Wa. Exposure is avoided.

According to the above embodiment, the following effects can be obtained.
(1) In the instrument mounting frame 11, the frame body 12 is formed in a U shape from a pair of sandwiching pieces 13 and a connecting piece 14 that connects one end portions of the sandwiching pieces 13. For this reason, compared with the case where the instrument mounting frame 11 is formed in a bottomed square box shape, the operation of passing the instrument mounting frame 11 through the wall hole Wa by using the opening 15 of the frame body 12 is easy. As a result, the instrument mounting frame 11 can be easily arranged on the back side of the wall material W.

  (2) In the instrument mounting frame 11, the length T2 of the sandwiching piece 13 in the long side direction is the same as the width of the wall hole Wa (length N2 in the short side direction). For this reason, when the instrument mounting frame 11 is inserted along the long side direction of the sandwiching piece 13, the length T2 of the sandwiching piece 13 in the long side direction is longer than the width of the wall hole Wa. The operation | work which passes the instrument mounting frame 11 with respect to Wa can be performed easily.

  (3) In the instrument mounting frame 11, the first restricting protrusion 18 a is formed on one end side in the long side direction of each clamping piece 13, and the second restricting protrusion 18 b is formed on the other end side. When the first and second restricting protrusions 18a and 18b are inserted into the wall hole Wa, the restricting protrusions 18a and 18b come into contact with the four inner side surfaces W1 to W4 of the wall hole Wa. The movement of the mounting frame 11 in the vertical and horizontal directions can be restricted, and the mounting frame 11 can be easily positioned at the position where the opening 15 faces the wall hole Wa.

  (4) In the instrument mounting frame 11, the first restricting protrusion 18 a is formed on one end side in the long side direction of each sandwiching piece 13, and the second restricting protrusion 18 b is formed on the other end side. Further, the first restricting protrusion 18 a is disposed inward by the width of the connecting piece 14, and the second restricting protrusion 18 b is disposed so as to protrude outward from the other end of the holding piece 13. And when the 1st control protrusion 18a and the 2nd control protrusion 18b are made into the one control member R, the position where the control member R shifted to the other end side along the long side direction of the clamping piece 13 Is arranged. For this reason, in a state where both outer ends of the regulating member R are in contact with the right side surface W3 and the left side surface W4 of the wall hole Wa, the entire contact surface 12a of the connecting piece 14 is in contact with the wall material W, and the wall hole The connecting piece 14 is not exposed in Wa. Therefore, it is possible to prevent the instrument mounting frame 11 from narrowing the wall hole Wa by setting the arrangement of the first and second restricting protrusions 18a and 18b.

  (5) In the instrument mounting frame 11, the first restricting protrusion 18 a is disposed inward from one end of the holding piece 13, and the second restricting protrusion 18 b is protruded outward from the other end of the holding piece 13. Arranged. When the pair of left and right first restricting protrusions 18 a and second restricting protrusions 18 b are used as one restricting member R, the restricting member R is located on the other end side along the long side direction of the sandwiching piece 13. It is arranged at a position shifted. For this reason, in a state where both outer ends of the regulating member R are in contact with the right side surface W3 and the left side surface W4 of the wall hole Wa, the contact surface 12a at the sandwiching piece 13 and the connection surface are connected to the back surface of the wall material W. The contact surface 12a at the piece 14 contacts. For this reason, even if the force which presses the fixture mounting frame 11 against the wall material W acts with the operation of the wiring fixture H, the force is applied to the three sides of the frame main body 12 (a pair of clamping pieces 13 and a connecting piece 14). ) And can prevent the instrument mounting frame 11 from being damaged.

  (6) The first and second restricting protrusions 18a and 18b protrude from the holding pieces 13 one by one. For this reason, the four restricting protrusions 18a and 18b can be arranged closer to the upper side W1 and the lower side W2 of the wall hole Wa, and the four restricting protrusions 18a and 18b do not greatly disturb the wall hole Wa. The first and second restricting protrusions 18a and 18b can be prevented from obstructing the installation of the wiring device H.

  (7) The first and second restricting protrusions 18a and 18b protrude from the holding pieces 13 one by one, and the connecting piece 14 is not formed with restricting protrusions 18a and 18b. For this reason, the connecting piece 14 is not positioned in the wall hole Wa, and the short side direction of the wall hole Wa can be prevented from being narrowed by the instrument mounting frame 11.

  (8) The first and second restricting protrusions 18a and 18b protrude from the holding pieces 13 one by one, and the connecting piece 14 is not formed with the restricting protrusions 18a and 18b. For this reason, the frame main body 12 can be formed in a U-shape and the right side can be opened. Accordingly, the instrument mounting frame 11 can be formed in a U-shape while the four restricting protrusions 18a and 18b are formed on the frame body 12, and the instrument mounting frame 11 can be easily passed through the wall hole Wa. The instrument mounting frame 11 can be easily arranged on the back side of the wall material W.

  (9) A locking projection 17 is formed on the frame main body 12, and the locking projection 17 is locked to the upper side surface W1 and the lower side surface W2 of the wall hole Wa. For this reason, when the screw 23 is screwed into the screw hole 19 of the instrument mounting frame 11, even if a force pushing the instrument mounting frame 11 to the back side of the wall material W acts on the instrument mounting frame 11, the locking projection 17 locks the instrument. The movement of the mounting frame 11 to the back side of the wall material W can be restricted. Therefore, it is not necessary to restrict the movement of the screw 23 to the back side of the wall material W by manually pressing the tool mounting frame 11 during the screwing operation of the screw 23, and the screwing operation of the screw 23 can be easily performed.

  (10) In addition to the first and second restricting protrusions 18a and 18b, a ruled line protrusion 18c is formed on the frame body 12 of the instrument mounting frame 11. For this reason, the instrument mounting frame 11 can be positioned by the first and second restricting protrusions 18a and 18b, and the operation of making the wall hole Wa in the wall material W by the ruled protrusion 18c can be easily performed. Can do. And the ruled line projection 18c is formed on the front surface of the first and second restricting protrusions 18a, 18b, and when the first and second restricting protrusions 18a, 18b are inserted into the wall hole Wa, It is arranged in the wall hole Wa without biting into the wall material W. Therefore, the ruled line projection 18 c does not hinder the arrangement of the instrument mounting frame 11 on the back side of the wall material W.

In addition, you may change the said embodiment as follows.
In the embodiment, the ruled projection 18c is provided on the first and second regulating projections 18a and 18b, but the ruled projection 18c may be omitted.

In the embodiment, the locking projection 17 is provided on the frame body 12, but the locking projection 17 may not be provided.
In the embodiment, in addition to the first and second restricting protrusions 18a and 18b, the locking protrusion 17 is provided separately from the frame body 12, but only the first and second restricting protrusions 18a and 18b are provided. The claw pieces project from the restricting protrusions 18a and 18b, and the claw pieces are locked to the inner surface of the wall hole Wa, and the restricting protrusions 18a and 18b also serve as the engaging portions. It is good.

  In the embodiment, the first restricting protrusion 18a is formed on the clamping piece 13 so as to be inward by the width of the connecting piece 14. However, the first restricting protrusion 18a is formed at a position straddling the connecting piece 14. May be.

  In the embodiment, the four restricting protrusions 18a and 18b are embodied as restricting parts, but the restricting part may be embodied as a U-shaped protrusion. This protrusion is formed so as to extend across the upper and lower sandwiching pieces 13 and the connecting piece 14. Both ends of the ridge protrude outward from the other end of the sandwiching piece 13. And while the upper surface of a protrusion contact | abuts to the upper surface W1 of wall hole Wa, the lower surface of a protrusion contact | abuts the lower surface W2 of wall hole Wa. Furthermore, the left side of the ridge contacts the left side W4 of the wall hole Wa, and the upper and lower ends of the ridge contact the right side W3 of the wall hole Wa.

  In the embodiment, the four restriction protrusions 18a and 18b are embodied as restriction parts. However, any one of the upper and lower second restriction protrusions 18b is deleted, and three restriction protrusions 18a and 18b are obtained. Also good. Even if comprised in this way, the one right 2nd control protrusion 18b contact | abuts the right side surface W3 of wall hole Wa, and the remaining two left 1st control protrusions 18a of wall hole Wa. In order to contact the upper side surface W1, the lower side surface W2, and the left side surface W4, the three regulating protrusions 18a and 18b contact the four inner side surfaces W1 to W4 of the wall hole Wa.

  In the embodiment, the length T2 along the long side direction of the sandwiching piece 13 in the frame body 12 is the same as the width of the wall hole Wa (length N2 along the short side direction). You may make length T2 along the long side direction of the clamping piece 13 shorter than the width | variety of wall hole Wa.

  In the embodiment, the instrument mounting frame 11 is embodied as a type including a pair of upper and lower screw holes 19 and nuts as attachment parts, but the instrument mounting frame 11 is extended from the frame body 12 in the short side direction. You may change into the type provided with two or more pairs of attachment parts.

  In the embodiment, when the wiring device H is installed on the wall material W, the device mounting frame 11 is arranged on the back side of the wall material W in a state where the device mounting frame 11 and the device holding frame 20 are assembled by the screws 23. However, it is not limited to this. That is, the appliance mounting frame 11 and the appliance holding frame 20 may not be assembled, and only the appliance mounting frame 11 may be disposed on the back side of the wall material W, and then the appliance holding frame 20 may be assembled to the appliance mounting frame 11 with screws 23.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(A) The restricting portion formed on one end side in the long side direction of the sandwiching piece is disposed on the inner side of the frame main body by the width of the connecting piece, and both restraints along the long side direction of the sandwiching piece The instrument mounting frame according to claim 3, wherein a distance between outer ends of the parts is set to be equal to a width of the wall hole.

  (B) Any one of claims 1 to 3 and a technical idea (A), wherein the one side surface includes a locking protrusion that is locked to the inner side surface of the wall hole and is elastically deformable. Instrument mounting frame as described.

  H ... Wiring device, W ... Wall material, Wa ... Wall hole, W1-W4 ... Inner side surface of wall material, 11 ... Device mounting frame, 12 ... Frame body, 12a ... Contact surface, 13 ... Clamping piece, 14 ... Connection A piece, 18a: a first restricting protrusion as a restricting part, 18b: a second restricting protrusion as a restricting part, 19: a screw hole that forms a mounting part.

Claims (3)

At least a pair of attachment portions for attaching the wiring device is provided in the frame body, and the attachment is used on the back side of the wall material through a wall hole formed in a square shape in the wall material. The wiring device is installed on the wall material, and is a device mounting frame installed on the back side of the wall material,
The frame body is formed of a pair of holding pieces and a connecting piece that connects one end portion in the long side direction of the holding pieces, and is formed in a U-shape with the other end side of the holding pieces opened,
On one side of the frame main body, there is a contact surface that contacts the peripheral edge of the wall hole on the back surface of the wall material,
A regulation portion that is erected from the one side surface and that abuts against the four inner side surfaces of the wall hole to regulate the movement of the frame body;
The restricting portion includes a first restricting portion formed on one end side in the long side direction of the sandwiching piece, and a second restricting portion formed on the other end side in the long side direction of the sandwiching piece. ,
An instrument mounting frame in which the first restricting portion is disposed from the inside by the width of the connecting piece, and the second restricting portion is disposed to protrude outward from the other end of the sandwiching piece . At least a pair of attachment portions for attaching the wiring device is provided in the frame body, and the attachment is used on the back side of the wall material through a wall hole formed in a square shape in the wall material. The wiring device is installed on the wall material, and is a device mounting frame installed on the back side of the wall material,
The frame body is formed of a pair of sandwiching pieces and a connecting piece that connects one end portion in the long side direction of the sandwiching piece, and is formed in a U-shape in which the other end side of the sandwiching piece is opened,
On one side of the frame main body, there is a contact surface that contacts the peripheral edge of the wall hole on the back surface of the wall material,
A regulation portion that is erected from the one side surface and that abuts against the four inner side surfaces of the wall hole to regulate the movement of the frame body;
Protrude from the long side direction of the other end of the regulating portion the clamping pieces outward, and a length along the longitudinal direction of the clamping piece is formed in the width and the same width or a width shorter of said wall hole that instrument mounting frame.   The said restriction | limiting part is provided with two or more so that it may be arrange | positioned inside the corner | angular part of the said wall hole, Each regulation part contact | abuts the adjacent inner surface which forms the said corner | angular part. Instrument mounting frame as described.

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