JP5226612B2 - Wiring fixture attachment - Google Patents

Description

  The present invention has a mounting portion for mounting a wiring device with a screw, and a screw mounting body in which an insertion hole through which the screw is inserted is formed on the front surface of the mounting portion and which is locked to a shaft portion of the screw in the mounting portion The present invention relates to a wiring fixture mounting body in which the

  Conventionally, a wiring box (wiring fixture mounting body) is installed on the back of the wall in order to install the wiring fixture on the wall surface of the building. Then, the wiring device is installed on the wall surface by screwing a screw (screw) for fixing the wiring device into a nut accommodated in the boss portion (attachment portion) of the wiring box. However, the screwing operation with a screw has to be done by rotating the screw with a screwdriver, and is very troublesome and time consuming. Therefore, a switch box has been proposed in which a member (screw mounting body) made of a thin metal plate is accommodated in the boss portion instead of the nut (see, for example, Patent Document 1).

  The switch box of Patent Document 1 includes a synthetic resin box that opens to the front surface, and a box-shaped attachment portion is provided on the upper inner surface and lower inner surface of the box. Moreover, nut holes into which box screws can be inserted into the respective attachment portions are formed on the front surfaces of the upper portion and the lower portion of the box. Further, power supply line outlets communicating with the inside of the attachment portion are formed at the upper and lower portions of the box. A speed nut (screw mounting body) that can lock the box screw is accommodated in the mounting portion. The speed nut is formed with a circular hole at the center and a cut line so as to be in contact with the circular hole. Moreover, the speed nut is accommodated in the mounting portion from each power line outlet.

  To install the wiring fixture on the wall using the switch box, insert the box screw attached to the mounting frame holding the wiring fixture into the nut hole and the box screw to the speed nut. Insert into the circular hole. Then, the speed nut is elastically deformed and locked to the screw portion of the box screw, and the box screw is prevented from coming out from the nut hole. As a result, the attachment frame is attached to the switch box, the wiring device is attached to the switch box, and the wiring device is installed on the wall surface.

Registered Utility Model No. 3003240

  However, in the switch box of Patent Document 1, since the speed nut is elastically deformed and locked to the screw portion when the box screw is inserted into the circular hole, the speed nut needs to be accommodated in the mounting portion so as to be elastically deformable. And is accommodated in a wider space in the mounting portion. Further, the power line outlet that communicates with the space in the mounting portion is formed wide so that the speed nut can be accommodated in the mounting portion and the power line connected to the wiring device can be inserted. . For this reason, there has been a problem that the speed nut accommodated in the mounting portion comes out of the mounting portion from the power line outlet.

  An object of the present invention is to provide a wiring fixture mounting body that can prevent the screw mounting body from coming out of the housing space while housing the screw mounting body in the housing space so as to be elastically deformable.

  In order to solve the above-mentioned problems, the invention according to claim 1 has an attachment portion for attaching the wiring device with a screw, and an insertion hole through which the screw is inserted is formed on the front surface of the attachment portion. And a wiring fixture mounting body in which a screw mounting body that is locked to the shaft portion of the screw is accommodated in the mounting portion, the screw mounting body including an elastically deformable board, and the board includes the screw mounting body. An insertion hole into which the shaft portion is inserted, and at least a pair of locking claws that engage with the shaft portion inserted into the insertion hole and restrict the screw from coming out of the insertion hole in the anti-insertion direction are opposed to each other. Furthermore, an accommodation space for accommodating the screw attachment body while allowing elastic deformation of the substrate and the locking claw is formed in the attachment portion, and the attachment portion is open to the outside. Is opened and accommodates the screw attachment body And a mounting member that is attached to the mounting portion main body and closes the opening of the receiving recess. The mounting member is attached to the mounting portion main body. Thus, the gist of the present invention is that the accommodation space is defined in the attachment portion and the screw attachment body is positioned in the accommodation space by the attachment member.

The gist of the invention according to claim 2 is that, in the wiring fixture attachment body according to claim 1, the attachment member is fitted into the housing recess.
The gist of the invention described in claim 3 is that, in the wiring fixture attachment body according to claim 1, the attachment member is attached to the outer surface side of the attachment portion main body.

  According to a fourth aspect of the present invention, in the wiring fixture attachment body according to the first aspect, the accommodation space is formed with a wide front side and a narrow back side along a direction in which the screw is inserted into the mounting portion. The attachment member is formed with a first recess recessed from one surface of the attachment member, and a second recess narrower than the first recess, and the attachment member is The wide space is formed in the housing space by the first recess and the narrow space is formed in the housing space by the second recess in a state where the housing space is partitioned while being inserted into the housing recess. The gist is that

  According to the present invention, it is possible to prevent the screw attachment body from coming out of the accommodation space while accommodating the screw attachment body in the accommodation space so as to be elastically deformable.

The disassembled perspective view which shows an attaching part main body, a screw attachment body, and an attachment member. (A) is a front view which shows the box for wiring, (b) is the 2b-2b sectional view taken on the line of FIG. Sectional drawing which shows the inside of an attaching part. The longitudinal cross-sectional view which shows the state which attached the wiring fixture to the box for wiring. The perspective view which shows the attaching part main body of 2nd Embodiment, a screw attachment body, and an attachment member. (A) is a front view which shows the attaching part in 2nd Embodiment, (b) is a longitudinal cross-sectional view which shows the inside of an attaching part. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. The perspective view which shows the attachment part main body, screw attachment body, and attachment member of 3rd Embodiment. (A) is a front view which shows the attaching part in 3rd Embodiment, (b) is a longitudinal cross-sectional view which shows the inside of an attaching part. (A) is a perspective view which shows the attachment part main body and attachment member of 4th Embodiment, (b) is sectional drawing which shows the inside of an attachment part. The perspective view which shows another example of the attachment member in 1st Embodiment.

(First embodiment)
Hereinafter, a first embodiment in which the wiring fixture mounting body of the present invention is embodied in a wiring box will be described with reference to FIGS. In the following description, “upper” and “lower” of the wiring box have the direction of the arrow Y1 shown in FIG. 1 as the vertical direction, and “left” and “right” have the direction of the arrow Y2 shown in FIG. In “front” and “rear”, the direction of the arrow Y3 shown in FIG.

  As shown in FIG. 1, the wiring box 11 is formed in a bottomed square box shape that opens to the front surface (one surface). The wiring box 11 includes a bottom wall 12 having a rectangular plate shape, and four side walls erected from the periphery of the bottom wall 12, that is, an upper side wall 13, a lower side wall 14, a left side wall 15, and a right side wall 16. An outer shell is formed. Each of the upper side wall 13, the lower side wall 14, the left side wall 15, and the right side wall 16 is formed in a rectangular plate shape.

  As shown in FIG. 2, in each of the inner surfaces of the upper side wall 13 and the lower side wall 14, a mounting portion 20 having an elongated rectangular box shape is formed at the center in the left-right direction (length direction) of the upper side wall 13 and the lower side wall 14. The mounting portion 20 is integrally formed so that the left-right direction (long side direction) extends along the left-right direction of the upper side wall 13 and the lower side wall 14. As shown in FIG. 4, the attachment portion 20 is provided in the wiring box 11 in order to attach the wiring device 19 to the wiring box 11 with screws 18 as screws. The screw 18 is formed of a head portion 18a and a shaft portion 18b having a screw formed on the outer surface.

  As shown in FIG. 1, the mounting portion 20 includes a square box-shaped mounting portion main body 23 extending from the inner surfaces of the upper side wall 13 and the lower side wall 14, and an attachment member 25 attached to the mounting portion main body 23. And is formed from.

  The attachment portion main body 23 is formed so that the front surface (one surface) is flush with the open ends of the upper side wall 13 and the lower side wall 14. In addition, in the mounting portion main body 23, the mounting portion main body 23 (mounting portion) is disposed on the wall 23a located on the front side (indicated by the arrow X in FIG. 1) of the screw 18 with respect to the mounting portion main body 23 (mounting portion 20). 20), an insertion hole 21 through which the screw 18 can be inserted is formed, and the shaft portion 18b of the screw 18 can be inserted into the attachment portion main body 23 (attachment portion 20) from the insertion hole 21.

  As shown in FIG. 3, in the insertion direction of the screw 18 into the attachment portion 20, the wall portion 23 b of the attachment portion main body 23 located on the back side of the insertion hole 21 can pass through the shaft portion 18 b of the screw 18. A hole 22 is formed. The insertion hole 21 and the through hole 22 are formed at positions facing each other in the thickness direction of the attachment portion main body 23 (insertion direction of the screw 18).

  As shown in FIG. 2 (b), the mounting portion main body 23 has a surface orthogonal to the front surface in which the insertion hole 21 is formed (the upper surface of the upper mounting portion main body 23 and the lower surface of the lower mounting portion main body 23). A housing recess 26 is formed so as to be recessed into the mounting portion main body 23. The opening 26 a of the housing recess 26 opens from the surface orthogonal to the front surface on which the insertion hole 21 is formed toward the outside of the attachment portion main body 23. The accommodating recess 26 is formed between the wall 23 a and the wall 23 b that face each other in the thickness direction of the attachment main body 23.

  The housing recess 26 is formed in an elongated square hole shape at a predetermined depth from the opening 26a. In each of the wall portions 23a and 23b, a locking hole 23c is formed at a position closer to the opening portion 26a than the insertion hole 21 and the through hole 22 so as to penetrate the wall portions 23a and 23b in the thickness direction. Further, as shown in FIG. 3, the accommodating recess 26 is formed with a wide first accommodating space 31 on the front side along the insertion direction of the screw 18 into the attaching portion main body 23 (attaching portion 20). A narrow second storage space 32 is formed on the back side of the first storage space 31 in the insertion direction. A step 33 is formed at the boundary between the first accommodation space 31 and the second accommodation space 32 on the inner surface of the accommodation recess 26.

  As shown in FIGS. 1 and 2, an attachment member 25 is inserted into the accommodation recess 26. The attachment member 25 is formed in an elongated plate shape, and a U-shaped sectional view along the thickness direction (front-rear direction) orthogonal to the length direction (left-right direction in FIG. 1) of the attachment member 25 is formed. Has been. The attachment member 25 is formed so as to be elastically deformable so that portions facing each other in the thickness direction can be brought close to or separated from each other. In addition, a locking projection 25a is formed at the central portion in the length direction on the outer surface of each portion of the attachment member 25 facing in the thickness direction.

  And the attachment member 25 can be inserted in the accommodation recessed part 26 from the side in which the latching protrusion 25a was formed in the state bent and deformed so that the site | parts which oppose thickness direction may approach. When the attachment member 25 is inserted into the accommodating recess 26, the bent and deformed portion returns to the original shape as shown in FIG. 2B, and each locking projection 25a is locked in the locking hole 23c. It is supposed to be. When the locking projection 25a is locked in the locking hole 23c, the attachment member 25 is attached to the attachment portion main body 23 to form the attachment portion 20, and the attachment member 25 opens the opening 26a of the accommodation recess 26. Is supposed to be closed.

  Further, when the opening 26 a is closed by the attachment member 25, the accommodation space 30 is formed in the attachment portion 20 by the inner surface of the accommodation recess 26 and the inner surface of the attachment member 25. The insertion hole 21 and the through hole 22 communicate with the accommodation space 30, and the screw 18 inserted into the insertion hole 21 can be inserted into the through hole 22 through the accommodation space 30.

  A screw attachment body 40 is accommodated in each accommodation space 30 of each attachment portion 20. As shown in FIG. 1, the screw attachment body 40 is formed by forming a thin metal plate having a rectangular shape in a plan view into a predetermined shape. The screw attachment body 40 includes a substrate 41 that forms an outline of the screw attachment body 40, and the substrate 41 is formed to be curved in an arc shape in an initial state. Further, the substrate 41 is formed so as to be able to bend and deform as a whole by pressing with the screw 18, and the substrate 41 is formed to be elastically deformable so as to return to the original shape before being deformed after being bent and deformed.

  The substrate 41 is formed with a pair of locking claws 42 that extend from both long sides of the substrate 41 toward the center of the substrate 41. Each locking claw 42 is formed by cutting out a metal plate forming the screw attachment body 40 into a predetermined shape, and further bending the entire substrate 41 other than the locking claw 42 in an arc shape along the long side direction. The front end side of 42 is formed so as to protrude from the substrate 41. That is, as shown in FIG. 3, the distal end side of the locking claw 42 protrudes from the surface of the substrate 41 on the side that bulges in an arc shape. Further, the pair of locking claws 42 are extended from the substrate 41 so that their tips are opposed to each other.

  Each of the locking claws 42 has a required strength and is formed so as to be able to bend and deform by pressing with the screw 18 and is formed so as to be elastically deformable so as to return to its original shape before being deformed after being bent and deformed. Has been. The length of the locking claw 42 along the extending direction of the locking claw 42 from the substrate 41 (the length from the proximal end to the distal end of the locking claw 42), and the base 41 from the proximal end of the locking claw 42 The length to the tip is the same.

  As shown in FIG. 1, the distal ends of the respective locking claws 42 are notched in an arc shape, and an insertion hole 43 having a circular hole shape is formed by facing the notched portions. The diameter of the insertion hole 43 is slightly smaller than the diameter of the shaft 18 b of the screw 18. In the substrate 41, a notch portion 44 that assists the bending deformation of the substrate 41 is formed at a position sandwiching the insertion hole 43 in the short side direction orthogonal to the extending direction of the locking claw 42 (long side direction of the substrate 41). ing. The substrate 41 is formed to be able to bend and deform in order to widen the distance between the tips of the pair of locking claws 42 when the screw 18 is inserted into the insertion hole 43.

  As shown in FIG. 3, the screw attachment body 40 configured as described above is accommodated in the accommodation space 30 so that the insertion hole 43 faces the insertion hole 21 of the attachment portion main body 23. Here, the opening width of the first accommodation space 31 (accommodation recess 26) along the left-right direction of the attachment portion main body 23 (attachment portion 20) (the direction of the long side and perpendicular to the insertion direction of the screw 18) is an arc shape. It is formed wider than the length along the long side direction of the substrate 41 in the initial state of bending. Further, the opening width of the first accommodation space 31 along the insertion direction of the screw 18 is formed to be narrower than the entire length in the thickness direction of the substrate 41 in the initial state. For this reason, the entire substrate 41 is accommodated in the accommodation space 30 using the first accommodation space 31 and the second accommodation space 32 communicating with the first accommodation space 31. That is, the screw attachment body 40 is accommodated in the accommodation space 30 in a curved state so that the insertion holes 43 are located on the back side in the insertion direction of the screw 18 from both ends in the long side direction of the substrate 41.

  Further, in the substrate 41, the back surface of the screw 18 in the insertion direction is in contact with the step 33 (the inner surface of the housing recess 26). The opening width along the insertion direction of the screw 18 in the second accommodation space 32 (accommodation recess 26) is such that the substrate 41 is bent as the screw 18 is inserted into the insertion hole 43 in a state where the substrate 41 is in contact with the step 33. The length is set to allow the deformation and the bending deformation of the locking claw 42.

  Further, in the accommodation space 30, the screw attachment body 40 is arranged so that the central portion in the long side direction of the substrate 41 bulges toward the second accommodation space 32. For this reason, the board | substrate 41 is accommodated so that bending deformation may be accept | permitted within the 1st accommodating space 31 and the 2nd accommodating space 32. FIG.

  Furthermore, in a state where both end sides (both ends in the long side direction of the substrate 41) that are the base end sides of the locking claw 42 in the substrate 41 are in contact with the step 33, the locking claw 42 is second from the first accommodation space 31. While extending obliquely toward the storage space 32, the second storage space 32 is disposed in a state of being a free end. Since the locking claw 42 is disposed in a state where it is a free end in the second storage space 32, the movement (bending deformation) of the locking claw 42 in the second storage space 32 is allowed. It is like that.

  Further, as shown in FIG. 2B, in the accommodation space 30, the screw attachment body 40 has one side end extending along the long side direction of the substrate 41, and a locking projection 25 a is formed in the attachment member 25. It can come into contact with the side end of the formed side. By this contact, the screw attachment body 40 is positioned in the accommodation space 30 so that the insertion hole 43 is positioned coaxially with the insertion hole 21 and is prevented from coming out of the accommodation space 30.

  In order to attach the wiring device 19 to the wiring box 11 having the above configuration, first, the wiring box 11 is fixed to the pillar H as shown in FIG. At this time, the wiring box 11 is fixed to the column H so that the mounting portion 20 is positioned vertically, but each of the upper and lower attachment members 25 has a locking projection 25a in the locking hole 23c of the mounting portion main body 23. By being locked, it is prevented from falling off from the housing recess 26. The upper and lower screw attachment bodies 40 can prevent the upper and lower screw attachment bodies 40 from coming out of the accommodating space 30 because one side end extending in the long side direction of the substrate 41 can contact the attachment member 25. ing.

  Next, a pair of wall members W are erected so as to sandwich the wiring box 11 from the front and rear, and a wall hole Wa is formed in the front wall member W so that the wiring box 11 faces the wall front side. Next, the wiring device 19 is held by the wiring device holding frame 50. Subsequently, each of the pair of screws 18 penetrating the wiring device holding frame 50 is inserted into the insertion holes 21 of the mounting portions 20. Then, as shown in FIG. 3, the screw 18 is pushed into the attachment portion 20 and the screw 18 is inserted into the insertion hole 43 of the screw attachment body 40. At this time, each of the locking claws 42 extends obliquely from the front side in the insertion direction of the screw 18 toward the back side. For this reason, when the tip ends of both locking claws 42 are pressed toward the second housing space 32 by the shaft portion 18b, the locking claws 42 move (bend and deform) in the second housing space 32, and the screws are attached. In the body 40, both end sides (both sides in the long side direction of the substrate 41) that are the base end sides of the locking claws 42 in the substrate 41 are supported by the step 33.

  Further, when the screw 18 is pushed into the insertion hole 43, as shown by a two-dot chain line in FIG. 3, the locking claw 42 is pressed by the shaft portion 18b, whereby the entire substrate 41 is bent and deformed. That is, the substrate 41 is deformed so that the curvature of the substrate 41 is smaller than the curvature before movement (before bending deformation) so that the tips of the pair of locking claws 42 are separated from each other and the shaft portion 18b is allowed to enter. To do.

  At this time, at both ends in the length direction of the first storage space 31, bending deformation in the anti-insertion direction of both ends of the base 41 on the base end side of the locking claw 42 is allowed, and in the second storage space 32, Further, bending deformation in the insertion direction of the central portion of the substrate 41 is allowed. That is, the entire deformation of the substrate 41 is allowed by the first accommodation space 31 and the second accommodation space 32. At the same time, movement (flexure deformation) of the locking claw 42 is allowed by the second storage space 32.

  After that, when the locking claw 42 that has been bent and deformed returns to its original shape by elastic deformation, the tip of the locking claw 42 is locked to the shaft portion 18b. When the pressing of the screw 18 against the screw attachment body 40 is stopped, the substrate 41 that has been bent and deformed returns to the original shape (initial state) by elastic deformation. At this time, the first accommodating space 31 and the second accommodating space 32 allow deformation for returning the entire substrate 41 to the original shape.

  Then, after the locking claw 42 is locked to the shaft portion 18b, the screw 18 is slightly screwed with respect to the screw mounting body 40 in order to mount the wiring device holding frame 50 to the mounting portion 20, as shown in FIG. As described above, the wiring device 19 is attached to the wiring box 11.

According to the above embodiment, the following effects can be obtained.
(1) The mounting portion main body 23 that forms the mounting portion 20 is formed with a housing recess 26 that houses the screw mounting body 40, and the attachment member 25 is fitted into the housing recess 26, and the mounting portion main body 23. The attachment portion 20 is formed from the attachment member 25. The opening 26 a of the housing recess 26 is closed by the mounting member 25, and the housing space 30 is defined in the mounting portion 20 from the inner surface of the mounting member 25 and the inner surface of the housing recess 26. Therefore, in the state where the screw attachment body 40 (substrate 41) is accommodated in the accommodation space 30, even if the accommodation space 30 is widely formed to allow elastic deformation of the substrate 41, the attachment member 25 can attach the screw. The body 40 can be prevented from slipping out of the attachment space 20 from the accommodation space 30.

  (2) By inserting the attachment member 25 into the accommodation recess 26, the screw attachment body 40 is positioned in the accommodation space 30 so that the insertion hole 43 is positioned coaxially with the insertion hole 21 of the attachment part 20. . Therefore, the screw 18 inserted into the insertion hole 21 can be reliably inserted into the insertion hole 43 of the screw attachment body 40.

  (3) When the attachment member 25 is inserted into the accommodation recess 26 from the side where the locking protrusion 25a is formed, the portion facing the thickness direction of the attachment member 25 is approached by the inner surface of the accommodation recess 26. When the locking protrusion 25a is locked in the locking hole 23c, the original shape is restored. Therefore, the attachment member 25 can be positioned in the accommodation recess 26 simply by fitting the attachment member 25 into the accommodation recess 26, and the accommodation space 30 is partitioned into the attachment portion 20 using the attachment member 25. Work can be done easily.

  (4) The housing recess 26 is formed with a first housing space 31 and a second housing space 32 that allow the entire board 41 to bend and deform in the screw attachment body 40, and to allow the locking claw 42 to bend and deform. A second accommodation space 32 is formed. For this reason, when the locking claw 42 is pressed by the screw 18, the pressing force is transmitted to the substrate 41 through the locking claw 42, and the entire substrate 41 is bent in the first accommodation space 31 and the second accommodation space 32. Deform. Therefore, due to the bending deformation of the entire substrate 41, the insertion resistance of the screw 18 by the locking claw 42 is reduced, and the screw 18 can be easily inserted into the screw attachment body 40. On the other hand, each of the locking claws 42 has a required strength, and even when the screw 18 is moved in the anti-insertion direction, the state where the locking claw 42 is locked to the shaft portion 18b is maintained, and the mounting portion 20 of the screw 18 is maintained. It is possible to prevent slipping out.

(Second Embodiment)
Hereinafter, a second embodiment in which the wiring device mounting body of the present invention is embodied in a wiring box will be described with reference to FIGS. In the following description, the same reference numerals are given to the same configurations as those of the already described embodiments, and the overlapping description is omitted or simplified.

  As shown in FIG. 6, the attachment portion 20 includes a square box-like attachment portion main body 35 extending from the inner surfaces of the upper side wall 13 and the lower side wall 14, and an attachment member attached to the attachment portion main body 35. 60. As shown in FIG. 5, the mounting portion main body 35 is formed with a housing recess 36 that is recessed from the front surface into the mounting portion main body 35. In the housing recess 36, an opening 36 a that opens toward the outside of the attachment portion main body 35 is formed in a square hole shape that extends in the long side direction (left-right direction) of the attachment portion main body 35. An insertion recess 35 d is formed in a pair of opening edges extending in the short side direction (vertical direction) of the attachment portion main body 35.

  Further, as shown in FIG. 7, the housing recess 36 has a first housing space 37 that is formed wide on the front side along the insertion direction of the screw 18 into the mounting portion 20, and a first housing space 37 in the insertion direction of the screw 18. A second storage space 38 is formed which is located on the back side of the first storage space 37 and is narrower than the first storage space 37. On the inner surface of the accommodation recess 36, a step 39 is formed by the boundary between the first accommodation space 37 and the second accommodation space 38. A screw attachment body 40 can be accommodated in the accommodation recess 36.

  As shown in FIGS. 5 and 6, an attachment member 60 is attached to the attachment portion main body 35. The attachment member 60 is formed in a U shape in plan view. The attachment member 60 is formed from a closing portion 61 formed in a rectangular plate shape, and a locking plate portion 62 extending in a direction orthogonal to the closing portion 61 from both ends in the long side direction of the closing portion 61. Has been. The length along the long side direction of the closing portion 61 is formed slightly longer than the length along the long side direction of the attachment portion main body 35, and the length along the short side direction of the closing portion 61 is the attachment portion main body. It is slightly shorter than the length of the insertion recess 35 d along the short side direction of 35. An insertion hole 61 a into which the screw 18 can be inserted is formed at the center of the closing part 61.

  Locking protrusions 62 a are formed on the inner surface of the front end of the locking plate portion 62 so as to protrude toward the locking plate portion 62 facing each other. 6 (a) by engaging the locking projection 62a of the locking plate portion 62 with the rear surface of the mounting portion main body 35 while fitting both side portions of the closing portion 61 in the long side direction into the fitting recess 35d. As shown in FIG. 2, the attachment member 60 is attached to the outer surface side of the attachment portion main body 35.

  The attachment portion 20 is formed by attaching the attachment member 60 to the outer surface side of the attachment portion main body 35. Further, the attachment member 60 is attached to the outer surface side of the attachment portion main body 35, whereby the entire opening portion 36 a of the accommodation recess 36 is closed by the closing portion 61, and the insertion hole 61 a through which the screw 18 is inserted into the attachment portion main body 35. Is provided. Further, as shown in FIGS. 6B and 7, the attachment member 60 is attached (attached) to the attachment portion main body 35, whereby the attachment portion is formed by the inner surface of the accommodating recess 36 and the inner surface of the closing portion 61. An accommodation space 70 is defined in the interior 20. The accommodation space 70 includes a first accommodation space 37 and a second accommodation space 38, and a step 39 is provided in the accommodation space 70.

  A screw attachment body 40 is housed in the housing space 70. In the accommodation space 70, the board 41 and the locking claw 42 are accommodated in an elastically deformable manner in the screw attachment body 40 as in the first embodiment. Further, as shown in FIG. 7, in the accommodation space 70, both ends of the board 41 in the long side direction of the screw attachment body 40 can come into contact with the inner surface of the attachment member 60. By this contact, the screw attachment body 40 is positioned in the accommodation space 70 so that the insertion hole 43 is positioned coaxially with the insertion hole 61a, and is prevented from coming out of the accommodation space 70.

Therefore, according to the second embodiment, the following effects can be obtained.
(5) The mounting portion main body 35 forming the mounting portion 20 is formed with an accommodation recess 36 for accommodating the screw mounting body 40 so as to be elastically deformable, and an attachment member 60 is mounted on the outer surface side of the mounting portion main body 35. It is done. The opening 36 a of the accommodation recess 36 is closed by the attachment member 60, and the accommodation space 70 is defined in the attachment portion 20 from the inner surface of the attachment member 60 and the inner surface of the accommodation recess 36. Therefore, in the state where the screw attachment body 40 (substrate 41) is accommodated in the accommodation space 70, even if the accommodation space 70 is widely formed to allow elastic deformation of the substrate 41, the attachment member 60 can attach the screw. It is possible to prevent the body 40 from slipping out of the mounting space 20 from the accommodation space 70.

  (6) By attaching the attachment member 60 to the attachment portion main body 35, the screw attachment body 40 is positioned in the accommodation space 70 so that the insertion hole 43 is positioned coaxially with the insertion hole 61a of the attachment portion 20. Is done. Therefore, the screw 18 inserted into the insertion hole 21 can be reliably inserted into the insertion hole 43 of the screw attachment body 40.

(Third embodiment)
Hereinafter, a third embodiment in which the wiring device mounting body of the present invention is embodied in a wiring box will be described with reference to FIGS. In the following description, the same reference numerals are given to the same configurations as those of the already described embodiments, and the overlapping description is omitted or simplified.

  As shown in FIG. 9, the attachment portion 20 includes a square box-like attachment portion main body 79 extending from the inner surfaces of the upper side wall 13 and the lower side wall 14, and an attachment member attached to the attachment portion main body 79. 80. As shown in FIG. 8, the attachment portion main body 79 is attached to the attachment portion from a surface orthogonal to the front surface in which the insertion hole 21 is formed (upper surface in the upper attachment portion main body 79 and lower surface in the lower attachment portion main body 79). A housing recess 46 is formed so as to be recessed into the main body 79. The opening 46 a of the housing recess 46 opens from the surface orthogonal to the front surface where the insertion hole 21 is formed toward the outside of the mounting portion main body 79. The accommodating recess 46 is formed between the wall 79 a and the wall 79 b that face each other in the thickness direction of the attachment main body 79.

  The housing recess 46 is formed in an elongated square hole shape from the opening 46 a to the inner bottom surface of the housing recess 46. In the wall 79a, a locking hole 79e is formed at a position closer to the opening 46a than the insertion hole 21 so as to penetrate the wall 79a in the thickness direction.

  An attachment member 80 is inserted into the housing recess 46. The attachment member 80 is formed in a rectangular plate shape. A first recess 81 is provided on one surface (front surface) of the attachment member 80, and a second recess 82 that is narrower than the first recess 81 is provided behind the first recess 81. Yes. A step 83 is formed at the boundary between the first recess 81 and the second recess 82. The size of the first recess 81 is the same as the size of the first storage space 31 of the first embodiment, and the size of the second recess 82 is the same as the size of the second storage space 32 of the first embodiment. It is the same. The screw attachment body 40 can be accommodated inside the first recess 81 and the second recess 82. That is, the screw attachment body 40 can be accommodated in the attachment portion main body 79.

  In the attachment member 80, a locking projection 80a is projected from the central portion in the long side direction on the surface (front surface) on the side where the first recess 81 opens. Further, in the attachment member 80, a through-hole 80b through which the screw 18 can be inserted is formed in the central portion in the long side direction on the surface (rear surface) on the side where the first recess 81 does not open.

  Then, as shown in FIG. 9A, the locking protrusion 80 a is inserted into the mounting portion main body while the attachment member 80 is inserted into the housing concave portion 46 so that the first concave portion 81 faces the front side of the mounting portion main body 79. The attachment member 80 is attached to the attachment portion main body 79 by engaging with the engagement holes 79e of 79 and bringing the end surface of the attachment member 80 into contact with the inner bottom surface of the accommodating recess 46. When the attachment member 80 is inserted into the accommodating recess 46, the screw attachment body 40 is accommodated in the first recess 81 and the second recess 82 of the attachment member 80, and the attachment member 80 and the screw attachment body 40 are simultaneously accommodated in the accommodation recess. 46 is inserted.

  By attaching the attachment member 80 to the attachment portion main body 79, the entire opening 46 a of the accommodation recess 46 is closed by the attachment member 80 as shown in FIGS. 9A and 9B. Further, the attachment member 80 is attached to the attachment portion main body 79, so that the accommodation space 90 is defined in the attachment portion 20 by the inner surface of the accommodation recess 46 and the inner surface of the attachment member 80. The accommodation space 90 includes a first recess 81 and a second recess 82 of the attachment member 80, and a step 83 is provided in the accommodation space 90. That is, in the accommodation space 90, a wide space is formed on the near side in the insertion direction of the screw 18 by the first recess 81, and a narrow space is formed on the back side in the insertion direction of the screw 18 by the second recess 82. Has been. Further, the shaft portion 18 b of the screw 18 that has passed through the insertion hole 43 of the screw attachment body 40 can be passed through the through hole 80 b of the attachment member 80.

  The screw attachment body 40 is housed in the housing space 90. In the accommodating space 90, the board 41 and the locking claw 42 are accommodated in an elastically deformable manner in the screw attachment body 40 as in the first embodiment. Further, in the accommodation space 90, the screw attachment body 40 can be brought into contact with the inner surface of the attachment member 80 at one side end extending in the long side direction of the substrate 41. By this contact, the screw attachment body 40 is positioned in the accommodation space 90 so that the insertion hole 43 is positioned coaxially with the insertion hole 21 and is prevented from coming out of the accommodation space 90.

Therefore, according to the third embodiment, the following effects can be obtained.
(7) The mounting portion main body 79 forming the mounting portion 20 is formed with a housing recess 46 for housing the screw mounting body 40, and the mounting member 80 is inserted into the housing recess 46. Then, the opening 46 a of the housing recess 46 is closed by the mounting member 80, and the housing space 90 is defined in the mounting portion 20 from the inner surface of the mounting member 80 and the inner surface of the housing recess 46. Therefore, in the state where the screw attachment body 40 (the substrate 41) is accommodated in the accommodation space 90, the attachment member 80 attaches the screw even if the accommodation space 90 is wide to allow elastic deformation of the substrate 41. The body 40 can be prevented from slipping out of the mounting portion 20 from the accommodation space 90.

  (8) The first recess 81 and the second recess 82 are formed in the attachment member 80, and the first recess 81 and the second recess 82 are inserted into the accommodation space 90 when the attachment member 80 is inserted into the accommodation recess 46. And a step 83 is formed. The first recess 81 and the second recess 82 allow the accommodation space 90 to be a space that allows elastic deformation of the screw attachment body 40.

In addition, you may change each said embodiment as follows.
(Fourth embodiment)
Hereinafter, a fourth embodiment in which the wiring fixture mounting body of the present invention is embodied in a wiring box will be described with reference to FIG. In the following description, the same reference numerals are given to the same configurations as those of the already described embodiments, and the overlapping description is omitted or simplified.

  As shown in FIG. 10B, a square hole-shaped passage hole 12 a is formed on the bottom wall 12 of the wiring box 11 at a position facing the mounting portion 20 of the wiring box 11. Also, as shown in FIG. 10A, the mounting portion 20 is attached to the mounting portion main body 91 and a mounting portion main body 91 having a rectangular box shape extending from the inner surfaces of the upper side wall 13 and the lower side wall 14. The attachment member 95 is formed. As shown in FIG. 10B, the attachment portion main body 91 is formed with an accommodation recess 92 that is recessed from the rear side of the attachment portion main body 91 into the attachment portion main body 91. The opening 92 a of the housing recess 92 opens from the rear side facing the front surface where the insertion hole 21 is formed in the attachment portion main body 91 toward the outside of the attachment portion main body 91. Locking pieces 93 are formed on the left and right sides of the mounting portion main body 91, and the locking pieces 93 are formed to be elastically deformable. A locking claw piece 93 a is formed at the tip of the locking piece 93.

  The attachment member 95 is attached to the attachment portion main body 91 by being fitted into the housing recess 92 of the attachment portion main body 91. As shown in FIG. 10A, the attachment member 95 is formed of a closing plate portion 96 and a cylindrical protection portion 97 extending from the closing plate portion 96. The attachment member 95 includes a plate portion 98 having a rectangular plate shape so that the closing plate portion 96 can be attached to the attachment portion main body 91 through the passage hole 12 a of the bottom wall 12. Side wall portions 99 are extended on both sides in the length direction.

  Steps 99 a are formed on the inner surfaces of the side walls 99, a step is formed between the tip of the side walls 99 and the step 99 a, and a step is formed between the steps 99 a and the plate 98. Is formed. Further, locking step portions 99 b are formed on the outer surfaces of the side wall portions 99. The closing plate portion 96 is formed with a communication hole 96a through which the shaft portion 18b of the screw 18 can pass.

  Further, in the attachment member 95, the protection part 97 has a rectangular plate shape, and the length of the protection part 97 in the short side direction is longer than the diameter of the shaft part 18b. Further, in the state where the wiring device 19 is attached to the wiring box 11 by the screw 18 and the shaft portion 18 b penetrates the attachment portion 20, the length of the protective portion 97 in the long side direction is the shaft portion from the attachment portion 20. It is longer than the protruding length of 18b.

  Then, the attachment member 95 is passed through the passage hole 12a, and the attachment member 95 is inserted into the wiring box 11 from the bottom wall 12 side (rear side) of the wiring box 11, as shown in FIG. In addition, the attachment member 95 is accommodated in the accommodation recess 92 so that the both side wall portions 99 of the attachment member 95 enter the inside of the both locking pieces 93 of the attachment portion main body 91. Then, the locking claw piece 93 a is locked to the locking step 99 b and the attachment member 95 is attached to the attachment portion main body 91. Accordingly, the attachment member 95 is attached to the attachment portion main body along the direction opposite to the insertion direction of the screw 18 with respect to the insertion hole 21 of the attachment portion 20 and the insertion hole 43 of the screw attachment body 40 (that is, the anti-insertion direction of the screw 18). It is attached to 91. When the attachment member 95 is attached to the attachment portion main body 91, the screw attachment body 40 is accommodated in the accommodation recess 92.

  When the attachment member 95 is attached to the attachment portion main body 91, the entire opening 92 a of the accommodation recess 92 is closed by the closing plate portion 96. Furthermore, the attachment space 95 is defined in the attachment portion 20 by the attachment member 95 being attached to the attachment portion main body 91, by the inner surface of the accommodation recess 92, the closing plate portion 96, and the inner surface of the side wall portion 99. . A step 99 a is provided in the accommodation space 101. That is, in the accommodating space 101, a wide space is formed on the near side in the insertion direction of the screw 18 by the step portion 99a, and a narrow space is formed on the far side in the insertion direction of the screw 18 from the wide space. ing.

  A screw mounting body 40 is accommodated in the accommodating space 101. In the accommodation space 101, the board 41 and the locking claw 42 are accommodated in an elastically deformable manner in the screw attachment body 40 as in the first embodiment. Further, in the housing space 101, the screw attachment body 40 is configured such that one side end extending in the long side direction of the substrate 41 can come into contact with the inner surface of the attachment portion main body 91. With this contact, the screw attachment body 40 is positioned in the accommodation space 101 so that the insertion hole 43 is positioned coaxially with the insertion hole 21 and is prevented from coming out of the accommodation space 101. Further, when the screw 18 is inserted into the attachment portion 20 and the wiring device 19 is attached to the wiring box 11, it passes through the insertion hole 43 of the screw attachment body 40 as shown by a two-dot chain line in FIG. The shaft portion 18 b of the screw 18 penetrating the attachment portion 20 is disposed on the protection portion 97.

Therefore, according to the fourth embodiment, the following effects can be obtained.
(9) A protective part 97 is formed on the attachment member 95. The shaft portion 18 b of the screw 18 that passes through the insertion hole 43 of the screw attachment body 40 and penetrates the attachment portion 20 is disposed on the protection portion 97. Therefore, the shaft portion 18 b exposed in the wiring box 11 is covered with the protection portion 97 from below, and the shaft portion 18 b is outside the protection portion 97 from both the long side direction and the short side direction of the protection portion 97. It does not protrude. For this reason, in a state where the cable is drawn into the wiring box 11 with the attachment member 95 attached to the attachment portion main body 91, the cable is located on the side edge in the long side direction of the protection portion 97 or in the short side direction. It contacts the side end and is located outside the protection part 97. Therefore, when the screw 18 is inserted into the mounting portion 20 in order to attach the wiring device 19 to the wiring box 11, the shaft portion 18 b of the screw 18 is disposed on the protection portion 97, and thus is positioned outside the protection portion 97. The shaft portion 18b inserted through the attachment portion 20 does not come into contact with the cable, and the shaft portion 18b can prevent the cable from being damaged.

  (10) The attachment member 95 is attached to the attachment portion main body 91 along the anti-insertion direction of the screw 18 with respect to the insertion hole 21 of the attachment portion 20 and the insertion hole 43 of the screw attachment body 40. In a state where the wiring device 19 is attached to the wiring box 11 using the screw 18, an external force along the anti-insertion direction of the screw 18 is applied to the screw 18 through the wiring device 19 by operating the wiring device 19. May act on the screw attachment body 40. At this time, the attachment member 95 for positioning the screw attachment body 40 in the attachment portion 20 is attached to the attachment portion main body 91 along the anti-insertion direction of the screw 18. For this reason, even if the screw attachment body 40 is pulled in the anti-insertion direction of the screw 18 by the above external force, the attachment member 95 is not detached from the attachment portion main body 91, and the screw attachment body 40 is attached by the attachment member 95. Can be maintained.

In addition, you may change this embodiment as follows.
In the first embodiment, a thin plate is provided between one side end of the screw attachment body 40 extending along the long side direction of the substrate 41 and the side end of the attachment member 25 on which the locking projection 25a is formed. An interposition member having a shape may be interposed. Then, the attachment member 25 and the interposition member are attached to the attachment portion main body 23, and the attachment portion 20 is formed from the attachment portion main body 23, the attachment member 25, and the interposition member, and the accommodation space 30 is partitioned. You may do it. When comprised in this way, the screw attachment body 40 can be positioned in the accommodation space 30 so that the insertion hole 43 may be located coaxially with the insertion hole 21 of the attachment part 20 by the interposed member.

  In the second embodiment, in a state where the attachment member 60 is attached to the attachment portion main body 35, one side end extending along the long side direction of the substrate 41 in the screw attachment body 40 is opposed to the one side end. A thin plate-like interposed member may be interposed between the inner surface of the attaching portion main body 35 to be attached. Then, the attachment member 60 and the interposition member are attached to the attachment portion main body 35, and the attachment portion 20 is formed from the attachment portion main body 35, the attachment member 60, and the interposition member, and the accommodation space 70 is partitioned. You may do it. When comprised in this way, the screw attachment body 40 can be positioned in the accommodation space 70 so that the insertion hole 43 may be located coaxially with the insertion hole 61a of the attachment part 20 by the interposed member.

  In the third embodiment, in a state in which the attachment member 80 is attached to the attachment portion main body 79, one side end extending along the long side direction of the substrate 41 in the screw attachment body 40 and the one side end are opposed to each other. A thin plate-like interposition member may be interposed between the attachment member 80 and the inner surface. Then, the attachment member 80 and the interposition member are attached to the attachment portion main body 79, and the attachment portion 20 is formed from the attachment portion main body 79, the attachment member 80, and the interposition member, and the accommodation space 90 is partitioned. You may do it. When comprised in this way, the screw attachment body 40 can be positioned in the accommodation space 90 so that the insertion hole 43 may be located coaxially with the insertion hole 21 of the attachment part 20 by the interposed member.

  In the fourth embodiment, in a state in which the attachment member 95 is attached to the attachment portion main body 91, one side end extending along the long side direction of the substrate 41 in the screw attachment body 40 and the one side end are opposed to each other. A thin plate-shaped interposition member may be interposed between the inner surface of the attaching portion main body 91 to be performed. And the attachment member 95 and the interposition member are attached to the attachment part main body 91, and the attachment part 20 is formed from these attachment part main body 91, the attachment member 95, and the interposition member, and the accommodation space 101 is partitioned. You may do it. When comprised in this way, the screw attachment body 40 can be positioned in the accommodation space 101 so that the insertion hole 43 may be located coaxially with the insertion hole 21 of the attachment part 20 by the interposed member.

  In the first embodiment, as shown in FIG. 11, the attachment member 25 may have a rectangular plate shape instead of a U-shaped cross section. A concave portion 25 b is formed in the central portion of the attachment member 25 in the length direction over the entire width direction of the attachment member 25. And the attachment member 25 is formed so that it can bend and deform from the center part of the length direction by the recessed part 25b. Further, locking projections 25 c are formed on both end surfaces in the length direction of the attachment member 25. In addition, in the attachment part main body 23, the locking hole 23c of the wall part 23a is not formed, but the locking hole (not shown) which can latch the latching protrusion 25c in the attachment part main body 23 is formed.

  And the attachment member 25 can be inserted in the accommodation recessed part 26 in the state bent and deformed so that the both sides of a length direction may approach. When the attachment member 25 is inserted into the housing recess 26, the attachment member 25 returns to its original shape from the deformed state, and each engagement protrusion 25c is engaged with the engagement hole in the attachment portion main body 23. It is supposed to be. When the locking protrusion 25c is locked in the locking hole, the attachment member 25 is attached to the attachment portion main body 23 to form the attachment portion 20, and the attachment member 25 opens the opening 26a of the accommodation recess 26. It is supposed to be closed.

  ○ In the fourth embodiment, the protective part 97 of the attachment member 95 is other than a rectangular plate as long as the cable is arranged outside the protective part 97 in the width direction so that the shaft part 18b does not contact the cable. For example, a cylindrical shape that wraps the entire shaft portion 18b or a semi-cylindrical shape that wraps only the lower half in the radial direction of the shaft portion 18b may be used. Further, the protection member 97 may not be provided in the attachment member 95.

  ○ The housing recesses 26, 36, 46, and 92 are recessed, and the openings 26a, 36a, 46a, and 92a of the housing recesses 26, 36, 46, and 92 are closed by the attachment members 25, 60, 80, and 95. The attachment portion main bodies 23, 35, 79, and 91 formed as described above may be provided on a wiring device attachment frame or box cover having a square frame shape.

In each embodiment, three or four or more locking claws 42 in the screw attachment body 40 may be formed.
In each embodiment, a bolt or a wood screw may be used instead of the screw 18 as a screw.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(1) In order to attach a wiring device to a frame-shaped or box-shaped wiring device mounting body with a screw, the wiring device mounting body is provided with an insertion hole through which the screw can be inserted, and the screw. A screw mounting body that locks onto the shaft portion of the mounting portion is housed inside,
The screw attachment body includes an elastically deformable board having a plate shape, and the board is locked to an insertion hole into which the shaft part of the screw is inserted, and the shaft part inserted into the insertion hole. And at least a pair of locking claws for restricting the screw from slipping off in the insertion direction with respect to the insertion hole, and in the mounting portion, while allowing elastic deformation of the substrate and the locking claws, An attachment space for accommodating a screw attachment body is formed, the attachment portion has an opening opening outward, and an attachment recess body for accommodating the screw attachment body, and the attachment portion An attachment member that is attached to a main body and closes the opening of the accommodation recess, and the accommodation space is partitioned in the attachment portion by attaching the attachment member to the attachment portion main body. And the accommodating space by the attachment member The structure of the mounting portion screw mounting member is positioned within.

  DESCRIPTION OF SYMBOLS 11 ... Wiring box as a wiring fixture attachment body, 18 ... Screw as screw, 18b ... Shaft part, 19 ... Wiring fixture, 20 ... Mounting part, 21, 61a ... Insertion hole, 23, 35, 79, 91 ... Mounting Body, 25, 60, 80, 95 ... mounting member, 26, 36, 46, 92 ... receiving recess, 26a, 36a, 46a, 92a ... opening, 30, 70, 90, 101 ... receiving space, 40 ... Screw mounting body, 41... Substrate, 42 .. locking claw, 43 .. insertion hole, 81... First recess as a wide space, 82 .. second recess as a narrow space.

Claims (4)

A screw attachment body having an attachment portion for attaching the wiring device with a screw, an insertion hole through which the screw is inserted is formed on the front surface of the attachment portion, and the attachment portion is engaged with the shaft portion of the screw. Is a wiring fixture mounting body in which is housed,
The screw attachment body includes an elastically deformable substrate, an insertion hole into which the shaft portion of the screw is inserted, and the insertion of the screw by being engaged with the shaft portion inserted into the insertion hole. At least a pair of locking claws that regulate the withdrawal in the anti-insertion direction with respect to the hole are provided facing each other,
Furthermore, an accommodation space for accommodating the screw attachment body while allowing elastic deformation of the substrate and the locking claw is formed in the attachment portion,
The attachment portion has an opening portion that opens outwardly, and an attachment portion main body formed with an accommodation recess for accommodating the screw attachment body, and the opening portion of the accommodation recess that is attached to the attachment portion main body. And the housing space is partitioned in the mounting portion when the mounting member is attached to the mounting portion main body, and the housing space is defined by the mounting member. A wiring fixture mounting body in which the screw mounting body is positioned.   The wiring fixture mounting body according to claim 1, wherein the attachment member is fitted into the housing recess.   The wiring fixture attachment body according to claim 1, wherein the attachment member is attached to an outer surface side of the attachment portion main body.   The housing space is formed such that the front side is wide and the back side is narrow along the insertion direction of the screw into the mounting portion, and the mounting member is recessed from one surface of the mounting member. A first recess is formed, a second recess that is narrower than the first recess is formed, and the attachment member is inserted into the receiving recess and the receiving space is partitioned. The wiring device attachment body according to claim 1, wherein the wide space is formed in the housing space by a recess, and the narrow space is formed in the housing space by the second recess.

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