JP2010093942A - Metal fitting for fixing stud of wiring box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal fitting for fixing a stud of a wiring box, which fixes the wiring box stably to an arm projecting in the horizontal direction from a stud fixing portion in a cantilever manner. <P>SOLUTION: The metal fitting for fixing the stud of the wiring box includes: a stud fixing portion 2 which is fixed to the stud of a wall; an arm 3 projecting horizontally from the stud fixing portion 2; a metal fitting body 4 having a slide groove hole 6 which is engraved in the arm 3 in alignment with the projecting direction thereof; and a fixing clamp 5 attached slidably to the back of the arm 3. The fixing clamp 5 is constituted of a pair of slide pieces 9 and 10 which are biased resiliently in the isolation direction and slidably arranged while holding the longitudinal ends of the arm 3, respectively, by means of engagement claws 12. Engagement protrusions 13 and 14 protruding from the slide pieces 9 and 10 and are inserted into the slide groove hole 6 of the arm 3 are fitted in a pair of fixing holes 18 and 19 formed in the back wall 17 of a wiring box B. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a wiring box inter-column fixing bracket used for attaching a wiring box such as a switch or an outlet to a wall post.

  Conventionally, as a fixing bracket for fixing wiring boxes such as switches and outlets to a wall stud, it consists of a stud fixing part and an arm part protruding in a horizontal direction from the stud fixing part, and slides horizontally on the arm part. Groove holes are formed, and bolts are inserted into bolt insertion holes provided on the back wall of the wiring box and slide holes of the arm portion, and the nut is tightened to fix the wiring box to the arm portion.

  In this case, since the slide groove hole along the horizontal direction is provided in the arm portion, the bolt and the nut for fixing the wiring box to the arm portion are loosened so that the wiring box is aligned along the slide groove hole of the arm portion. Therefore, the mounting position can be adjusted by moving in the width direction of the studs.

  However, when this fixing bracket is fixed to the stud, depending on the construction site, there may not be a sufficient gap between the arm projecting horizontally from the stud fixing portion and the building on the back. In the state fixed to the arm portion, there is a problem that it is difficult to perform a work of inserting a tool or a hand into a gap between the arm portion and the back surface thereof and tightening a fixing bolt or nut.

Therefore, the applicant first formed a slide groove along the longitudinal direction in the arm portion of the fixing bracket integrally formed with the fixing portion to the stud and the arm portion, and grabbed the arm portion with the engaging claw. A fixing plate slidable with respect to the arm portion is attached to the back surface of the arm portion of the fixing bracket, and the arm portion is attached to one of a pair of mounting holes in a horizontal position formed on the back surface of the wiring box. An engagement protrusion to be inserted through the slide groove hole and a screw fixing portion to be screwed from the other mounting hole of the wiring box through the slide groove hole of the arm portion are provided, and the screw is fastened to the screw fixing portion. Therefore, the arm portion is sandwiched between the back surface of the wiring box and the fixing plate, and the wiring box is fixed to the arm portion so as not to rotate. (Patent Document 1)
Japanese Patent No. 4025603

  By the way, the present wiring box is provided with a plurality of types of widths, and the spacing between the pair of attachment holes is different in each width of the wiring box. In the above-mentioned proposal, the engagement protrusion and the screw fixing portion must be formed on the fixing plate in accordance with the distance between the pair of mounting holes in the horizontal position formed on the back surface of the wiring box. Don't be. For this reason, a plurality of types of fixing plates having different intervals between the engaging protrusions and the screw fixing portions are prepared, or a plurality of screw fixing portions are provided on the fixing plate at different intervals based on the positions of the engaging protrusions. Must be formed or not.

  When preparing multiple types of fixing plates with different intervals between the engaging protrusions and the screw fixing parts, matching between the fixing bracket and the wiring box in the field becomes troublesome, which affects work efficiency. Become. On the other hand, when a plurality of screw fixing portions with different distances to the engaging protrusions are formed on one fixing plate, there is an advantage that a single fixing plate can handle a plurality of types of wiring boxes. Since the size of the fixing plate must be determined based on the widest gap between the mating protrusion and the screw fixing part, when using a wiring box with a narrow mounting hole interval, the end of the fixing plate Protrudes outward from the wiring box, and there is a problem that it is difficult to obtain sufficient accuracy of the wiring box installation location.

  The present invention has been made paying attention to such points, and a wiring box capable of stably fixing a wiring box to an arm portion protruding in a cantilever state in a horizontal direction from a stud fixing portion by a simple operation. The purpose is to provide stud fixing brackets.

  In order to achieve the above-mentioned object, the invention described in claim 1 includes a stud fixing part fixed to a stud on a wall, an arm projecting in a horizontal direction from the stud fixing part, and a link to the arm. An intermediary column fixing bracket for a wiring box, comprising: a metal fitting body having a slide groove hole that is engraved so as to coincide with the protruding direction; and a fixture that is slidably mounted on the back surface of the arm portion. Each of the sliding pieces is configured to be slidable by grasping the longitudinal end edge of the arm portion by the engaging claw. Further, the present invention is characterized in that engaging projections that are respectively inserted through the slide groove holes of the arm portions project from the pair of mounting holes formed in the horizontal position on the back wall of the wiring box.

  Further, the invention according to claim 2 is characterized in that, in addition to the configuration of claim 1, a pair of sliding pieces constituting the fixture are connected by an elastic connecting portion configured in a pantograph shape. In addition to the structure according to claim 1 or 2, the invention according to claim 3 is configured such that at least one side of the slide groove hole is formed in a continuous waveform, and the slide groove is formed on one slide piece constituting the fixture. An engagement protrusion that engages with a partial waveform of the continuous waveform portion of the hole is formed.

  Furthermore, the invention described in claim 4 is characterized in that in addition to the structure described in any one of claims 1 to 3, the fixture is integrally formed of a synthetic resin. In the invention, in addition to the configuration according to any one of claims 1 to 4, the index scale indicating the distance from the stud fixing part is engraved on the surface of the arm part at fixed intervals. The index scale indicating the distance from the section is engraved at regular intervals.

  In the present invention, the fixing device slidably mounted on the back surface of the arm portion is composed of a pair of elastically slidable sliding pieces, and the pair of sliding pieces are respectively in the longitudinal direction of the arm portion by the engaging claws. It is configured to be slidable by grasping the end edge, and is inserted into each sliding piece through a pair of mounting holes in a horizontal position formed on the back wall of the wiring box via a slide groove hole of the arm part. Since the engaging projections are provided in a projecting manner, each sliding piece has a pair of mounting holes formed in the bottom wall of the wiring box engaged with the engaging projections protruding from the fixture. The box can be firmly fixed to the stud via the arm portion.

  In addition, since the fixture is composed of a pair of elastically biased sliding pieces, the change in the separation dimension of the pair of mounting holes formed in the bottom wall of the wiring box is adjusted relative to the sliding pieces. Since it is absorbed by movement, it can be used for wiring boxes of multiple widths with a single fixture, making it easy to match fixtures and wiring boxes in the field, improving work efficiency. be able to.

  Further, as in the third aspect of the invention, at least one side of the slide groove hole formed in the arm portion is formed in a continuous waveform, and the slide groove hole is formed on one slide piece constituting the fixture. When an engagement protrusion that engages with a partial waveform in the continuous waveform portion is formed, the fixture can be reliably locked at an arbitrary position of the slide groove hole, and the wiring box can be securely connected. Can be held fixed.

  Further, as in the invention according to claim 5, when the index scale indicating the distance from the stud fixing portion is engraved at regular intervals on the surface of the arm portion, from the stud fixing portion where the wiring box is installed This makes it possible to increase the work efficiency of the wiring box installation work.

  FIG. 1 shows an embodiment of the present invention, FIG. 1 is an overall perspective view before the wiring box is assembled, FIG. 2 is a front view of the wiring box inter-column fixing bracket, and FIG. 3 is each component of the wiring box inter-column fixing bracket. FIG. 4 is a plan view of the wiring box inter-column fixing bracket, and FIG. 5 is a side view of the inter-column fixing bracket with the wiring box installed.

  The wiring box fixing metal fitting (1) according to the present invention includes a stud fixing portion (2) fixed to a pillar (P) of a wall (W) and an arm portion (3) protruding horizontally from the spacer fixing portion (2). ) And a fixture (5) assembled in a slidably movable state on the arm portion (3) of the bracket body (4).

  The arm portion (3) extends horizontally in a state of being bent at right angles to the stud fixing portion (2), and a slide groove hole (6) is formed on the vertical surface (3a) of the arm portion (3). Is transparently provided in the arm portion extending direction. And one side (7) of the slide groove hole (6) provided in this arm part (3) is formed in a continuous waveform. In addition, index scales (8) indicating the distance from the stud fixing portion (2) in the state of the slide groove hole (6) are engraved on the surface of the arm portion at regular intervals.

  The fixture (5) is mounted on the back surface of the arm part (3) in a state in which it can slide and move with respect to the arm part (3). The fixture (5) includes a pair of sliding pieces (9) and (10), an elastic coupling portion (11) formed in a pantograph shape for connecting the sliding pieces (9) and (10), and each sliding piece. Engaging claws (12) respectively formed on the upper and lower sides of the pieces (9) and (10), and the slide groove hole (6) in the front portion forming the vertical surface of each sliding piece (9) and (10) And a pair of sliding pieces (9) and (10) are connected to each other by the elastic force possessed by the elastic coupling part (11). It is elastically biased in a separated state.

  Further, a slide guide (15) for moving the slide groove (6) is formed on one slide piece (9) constituting the fixture (5). The slide guide (15) is configured such that one side edge portion thereof can be bent and deformed, and one side edge (7) of the slide groove hole (6) is formed on the one side edge portion which is bent and deformed. Engagement protrusions (16) are formed that fit into some valleys of the continuous waveform.

  The wiring box fixing metal fitting (1) having such a structure has the fixing tool (5) mounted on the arm part (6) of the metal fitting body (4) from the back side, and each sliding piece of the fixing tool (5). (9) By holding the upper and lower edges of the arm portion (6) with the engaging claws (12) formed on the (10), the fixture (5) is attached to the arm portion (6) of the bracket body (4). Can be assembled in a slidable state. At this time, the engaging projections (13) and (14) projecting from the sliding pieces (9) and (10) of the fixture (5) are slide grooves (see FIG. 6) The slide guide (15) formed on one sliding piece (9) is positioned in a state in which it can move horizontally, and the engagement protrusion (16) formed on one side edge portion of the slide guide (15) is formed in the slide groove. The free movement of one sliding piece (9) is suppressed by fitting in a part of trough part of the continuous waveform formed in one side edge (7) of the hole (6).

  The wiring box (B) that is attached to the wall surface of the structure using the wiring box fixing bracket (1) is made of synthetic resin formed in an open front surface, and a pair of back walls (17) are attached to the rear wall (17). The mounting holes (18) and (19) are formed on a straight line in the horizontal direction. In addition, a conduit mounting hole (22) is formed in the ceiling wall (20) and the bottom wall (21).

Next, a procedure for arranging the wiring box (B) in the wall will be described.
The intermediate column fixing portion (2) of the wiring box fixing bracket (1) is pressed against the intermediate column (P) where the wall material (W) is installed at a predetermined interval, and is fixed by the fixing screw (24). Then, after sliding the fixture (5) of the wiring box fixture (1) relative to the arm (3) to adjust the distance from the stud (P), the slide guide of the fixture (5) The fitting (5) is attached to the arm portion (3) by fitting the engagement protrusion (16) formed on (15) and the continuously corrugated trough formed on one side (7) of the slide groove hole (6). ).

  Each sliding piece (9) protruding through the slide groove (6) of the arm part (3) in a state where the fixing tool (5) is retained at a predetermined position of the arm part (3). A pair of mounting holes (18) and (19) are formed through the rear wall (17) of the wiring box (B) to the engaging protrusions (13) and (14) formed in 10), and the slide guide (15) The engaging protrusion (14) formed on the sliding piece (10) on the side where the wire is not formed is fitted into one mounting hole (19), and this engaging protrusion (14) is inserted into the wiring box (B ) Slide guide (15) against the elastic force of the elastic coupling portion (11) connecting the slide pieces (9) and (10). The engaging protrusion (13) formed on the sliding piece (9) is moved into the mounting hole (18) of the wiring box (B). The fixing tool (5) and the wiring box (B) are engaged and fixed by fitting, and the wiring box is placed at a predetermined position with respect to the stud (P). Box (B) will be installed.

  At this time, when the mounting holes (18), (19) of the wiring box (B) and the engaging projections (13), (14) of the fixing tool (5) are engaged, the fixing tool (5) is formed. Since the elastic force of the elastic coupling part (11) connecting the sliding pieces (9) and (10) is acting in the direction separating the sliding pieces (9) and (10), the wiring box (B) is securely held in the wiring box fixing bracket (1) without rattling.

  In the above-mentioned embodiment, in order to stably hold the fixture (5) at a predetermined position of the metal fitting body (4), one side (7) of the slide groove (6) is formed in a continuous waveform. However, both sides of the slide groove hole (6) may be formed in a continuous waveform, and a recess for engagement may be provided intermittently at a predetermined location on the side of the slide groove hole (6). .

  In the above-described embodiment, the pair of sliding pieces (9) and (10) constituting the fixture (5) are connected by the elastic coupling portion (11) formed in a pantograph shape. The elastic engaging portion (11) for connecting the pair of sliding pieces (9) and (10) is a direction in which the pair of sliding pieces (9) and (10) are separated, such as a zigzag spring or a compression spring. Any elastic body on which the elastic force acts can be used. Furthermore, although the above-mentioned embodiment demonstrated what fixed the fixture (5) integrally molded with the synthetic resin, the fixture (5) may be formed with the metal.

  In the above embodiment, the means for fixing the intermediate column fixing portion (2) of the wiring box fixing metal fitting (1) to the intermediate column (P) has been described as being directly screwed, but this intermediate column (P) As a means for fixing to the wall, a type in which the wall surface portion of the stud is sandwiched between the stud fixing part (2) and the connecting plate may be used.

  The present invention is effective when a wiring box is attached to a wall that uses wooden studs or lightweight steel studs.

It is a whole perspective view before the box for wiring is assembled. It is a front view of the box fixing bracket between wiring boxes. FIG. 3A is a front view of each component member of the wiring box inter-column fixing metal fitting, FIG. 3A is a front view of the metal fitting body, and FIG. 3B is a front view of the fixing tool. It is a top view of a metal box fixing bracket for wiring. It is a side view of the stud fixing metal fitting in the state where the box for wiring was installed.

Explanation of symbols

  2 ... Space pole fixing part, 3 ... Arm part, 4 ... Metal fitting body, 5 ... Fixing tool, 6 ... Slide groove hole, 7 ... One side of slide groove hole, 8 ... Indicator scale, 9 · 10 ... Slide piece, 11 ... Elastic coupling part, 12 ... engagement claw, 13.14 ... engagement protrusion, 16 ... engagement protrusion, 17 ... back wall of wiring box, 18.19 ... mounting hole, B ... wiring box.

Claims (5)

A stud fixing part (2) fixed to the stud (P) of the wall (W), an arm part (3) protruding in a horizontal direction from the stud fixing part (2), and a connection to the arm part (3). A metal fitting body (4) having a slide groove (6) engraved in the protruding direction and a fixture (5) slidably mounted on the back surface of the arm portion (3) are provided. A box fixing bracket for wiring boxes,
The fixture (5) is composed of a pair of sliding pieces (9) and (10) which are elastically biased in the isolation direction, and the pair of sliding pieces (9) and (10) are respectively formed by engaging claws (12). It is configured to be able to slide by grasping the longitudinal edge of the arm part (3)
Each sliding piece (9), (10) has a pair of mounting holes (18), (19) in the horizontal position formed on the back wall (17) of the wiring box (B). An inter-box box fixing bracket for wiring, characterized in that engaging projections (13) and (14) to be inserted through the slide groove holes (6) are respectively provided.   The box fixing bracket for wiring boxes according to claim 1, wherein the pair of sliding pieces (9), (10) constituting the fixture (5) are connected by an elastic coupling portion (11) configured in a pantograph shape.   At least one side (7) of the slide groove hole (6) is formed in a continuous waveform, and the continuous wave portion of the slide groove hole (6) is formed on one slide piece (9) constituting the fixture (5). The wiring box inter-column fixing metal fitting according to claim 1 or 2, wherein an engagement protrusion (16) that engages with a partial waveform of the wiring box is formed.   The box fixing bracket for wiring boxes according to any one of claims 1 to 3, wherein the fixing tool (5) is made of a synthetic resin formed integrally.   The wiring box according to any one of claims 1 to 4, wherein an index scale (8) indicating a distance from the stud fixing portion (2) is formed on the surface of the arm portion (3) at regular intervals. Fixing bracket for stud.

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