HK1020231B - Wiring-accessory plate - Google Patents

Description

Board for device wiring

The present invention relates to a device wiring board, and more particularly, to a device wiring board in which a wiring device is disposed in an insertion hole provided in a building surface such as a wall surface.

A board for wiring devices has been conventionally provided in which an insertion box (switch box) is inserted into an insertion hole provided in a building surface such as a wall surface, a board frame for detachably mounting a wiring device such as a switch or a socket is mounted in the insertion box from the front of the insertion hole, a middle plate is mounted on the front of the board frame, and a metal decorative plate is mounted on the front of the middle plate, thereby making the insertion arrangement of the external shape such as the wall surface of the wiring device beautiful.

However, in the above-described conventional structure, since the abutting surface between the panel frame and the middle panel projects forward from the wall surface, the abutting line between the two is visible from the side surface or the two are relatively displaced, and therefore, there is a problem that the appearance is not beautiful.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a device-wiring board which can be mounted in a mounting hole provided in a building surface with a wiring device and which has a good appearance.

In order to achieve the above object, a board for device wiring according to the present invention includes: a plate frame which can cover an opening face of an insertion hole provided in a construction surface and has: an opening part for exposing the functional surface of the embedded wiring device; a fixed beam part having a locking groove, locking the locking claw with the wiring member, and provided at the edge of the opening part; a movable beam portion having a locking groove for locking the locking claw and provided at an edge of the opening portion so as to be bendable; further comprising: a middle plate mounted on the front face of the frame plate, having an opening window through which the functional face of the wiring device is exposed, and having a main portion covering the front face of the plate frame and a side wall projected from all edges of the main portion; a metal plate covering the front surface of the middle plate and having an exposure window for exposing the functional surface of the wiring device; the transverse dimension between the opposite side walls of the middle plate is larger than the transverse dimensions of the plate frame. When the middle plate is installed in front of the plate frame, the plate frame is received inside the middle plate, and the front end edge of the side wall of the middle plate is almost connected with the creation surface.

The board for device wiring according to the present invention is characterized in that the metal plate can be easily attached to the intermediate plate by pressing at least a part of the metal plate into the intermediate plate and fixing the metal plate to the intermediate plate.

The board for device wiring of the present invention is characterized in that the metal plate is attached to the middle plate with a double-sided tape, and the metal plate can be easily attached to the middle plate.

The board for device wiring of the present invention is characterized in that one or more locking portions are provided on the metal plate, and one or more locked portions to be locked to the locking portions are provided on the middle plate in a concavo-convex manner.

The board for device wiring according to the present invention is characterized in that the metal plate is simply attached to the middle plate by thermally connecting the metal plate to the middle plate.

The board for device wiring according to the present invention is characterized in that the metal plate can be easily attached to the middle plate by folding a part of the metal plate back to the back surface of the middle plate.

The board for device wiring according to the present invention is characterized in that a rib is provided on the inner side of the middle plate to contact the surface of the plate frame, thereby preventing instability along the direction of the middle plate construction surface facing the plate frame.

The board for device wiring according to the present invention is characterized in that the side wall of the middle plate is provided with a contact portion which comes into contact with the board frame along substantially the entire periphery thereof, and thus, the instability in the direction along the plane in which the middle plate faces the board frame can be prevented.

The board for device wiring according to the present invention is characterized in that the protruding portion of the rib or the contact portion which comes into contact with the front surface is provided at least at a part of the periphery of the board frame, and therefore, the board frame can be prevented from being unstable in a direction approximately perpendicular to the plane of construction of the middle plate facing the board frame.

The board for device wiring according to the present invention is characterized in that the board frame is provided with an insertion hole for inserting a box screw of an insertion box for installing the insertion hole, and the extension portion is provided in a portion other than the periphery of the insertion hole, so that the extension portion does not interfere with the middle plate even if the board frame is deformed by tightening the box screw, thereby making the installation appearance beautiful.

The board for device wiring according to the present invention is characterized in that a tapered surface for guiding the middle plate in the middle plate attachment direction is formed at an edge portion of the board frame, and the middle plate is guided by the tapered surface when the middle plate is covered with the front surface of the board frame, thereby facilitating attachment.

The board for device wiring according to the present invention is characterized in that a tapered surface for guiding the middle plate in the mounting direction of the board frame is formed at an edge portion of the middle plate, and the middle plate is guided by the tapered surface when the middle plate is covered with the front surface of the board frame, thereby facilitating mounting.

The board for distributing device of the invention is characterized in that a locking convex piece is convexly arranged on the back surface of the middle board, a locking hole for locking the locking convex piece is arranged on the front surface of the board frame, a notch groove for inserting a clamp for detaching the middle board is arranged on the side wall of the middle board, the clamp is inserted into the notch groove, and the middle board is lifted up by utilizing the lever principle, so that the locking between the locking convex piece and the locking hole can be released, and the middle board can be easily detached from the board frame.

The board for device wiring according to the present invention is characterized in that a releasing portion is provided in the frame to release the jig for removing the middle plate at the position corresponding to the notch portion, and the jig inserted into the notch portion is released by the releasing portion to be inserted into the interior, and the middle plate is easily urged when removed.

The board for device wiring according to the present invention is characterized in that a rib not protruding from the notch portion of the middle plate is provided to extend from one end of the back surface of the relief portion, and the rib is brought into contact with a jig inserted into the notch portion, whereby damage to the textured surface can be prevented by the jig when the middle plate is removed from the board frame.

The board for distributing components of the present invention is characterized in that connecting portions are provided at both ends of the movable beam portion, the connecting portions being formed by connecting the movable beam portion to side frame pieces on one side of the board frame in a bendable manner, and both ends of a gap formed between the movable beam portion and the side frame pieces are bent toward the connecting portions.

The board for device wiring according to the present invention is characterized in that the locking grooves are provided at equal distances in the fixed beam portion and the movable beam portion, and the degree of freedom in the mounting position of the wiring device with respect to the board frame can be increased.

The board for device wiring according to the present invention is characterized in that the fixed beam portion and the movable beam portion are provided with a spacer rib, and when the wiring device is locked and fixed by the fixed beam and the movable beam portion while exposing the functional surface from the opening of the board frame, the mounting position of the wiring device facing the opening is spaced at a predetermined position, and thus, an error in the mounting position of the wiring device facing the board frame of the wiring device can be prevented.

The board for wiring devices of the present invention is characterized in that a projecting piece which is fitted into the gap formed between the movable beam portion and the side frame piece is projected from the back surface of the middle plate, and the movement of the movable beam portion can be controlled by the projecting piece, so that even when a large impact or the like is applied to the wiring device, it is difficult to disengage the locking claws of the wiring device from the locking grooves of the movable beam portion.

The board for wiring devices of the present invention is characterized in that the board frame is provided with a control means for controlling instability of the wiring device by contacting at least a part of the side surface of the wiring device when the locking claws are locked to the locking grooves of the fixed beam portion and the movable beam portion and the wiring device is locked to the board frame, and the occurrence of inconveniences such as damage to the locking claws can be prevented even when unnecessary force is applied to the wiring device in addition to the instability of the wiring device in the mounted state on the board frame.

The board for device wiring according to the present invention is characterized in that at least the edge portion of the locking hole of the board frame is formed to be thin, and even if the board frame is deformed to some extent by tightening a box screw or the like, the edge portion of the locking hole is formed to be thin, so that it is difficult to affect the deformation of the locking hole portion, and the appearance of the middle board attached to the board frame is beautiful.

The board for device wiring according to the present invention is characterized in that a device removing hole penetrating from the front face of the side frame piece of the board frame to the face opposite to the fixed beam portion wiring device is provided between the locking grooves, the wiring device is pressed toward the movable beam portion side by a tip portion of a jig attached to the device removing hole, and the movable beam portion is moved by a small force according to the principle of leverage, so that the locking between the locking grooves on the fixed beam portion side and the wiring device locking claws can be released, and the wiring device can be easily removed from the board frame.

The board for device wiring of the present invention is characterized by further comprising: a plate frame which can cover an opening face of an insertion hole provided in a construction surface and has: a pair of openings for exposing the functional surface of the embedded wiring device; a fixed beam portion having a locking groove for locking a locking claw with the wiring device and provided between the pair of opening portions; a movable beam portion having a locking groove for locking the locking claw and provided at an edge of the opening portion so as to be bendable; further comprising: a middle plate mounted on the front face of the frame plate, having a pair of opening windows that can expose the functional face of the wiring device, and having a main portion covering the front face of the plate frame and a side wall protruding from about the entire edge of the main portion; a metal plate covering the front surface of the middle plate and having a pair of exposure windows capable of exposing the functional surface of the wiring device; the lateral dimension between the side walls opposite to the middle plate is larger than the lateral dimensions of the plate frame. When the middle plate is installed in front of the plate frame, the plate frame is received in the inner side of the middle plate, and the front end of the side wall of the middle plate is almost contacted with the construction surface, therefore, the butt joint surface of the plate frame and the middle plate does not protrude forwards from the construction surface like the prior art, and the butt joint line of the plate frame and the middle plate is almost not seen from the side surface, thereby the appearance is beautiful. Meanwhile, when the wiring device is arranged by using two sets of the board frame, the middle board and the metal plate, the problem can be solved by only using one set of the board frame, the middle board and the metal plate, thereby reducing the number of used parts, increasing the number of the wiring devices which can be arranged and the mode of combination at one position and being convenient to use.

The drawings are briefly described below.

FIG. 1 is a perspective view showing embodiment 1 from the front.

FIG. 2 is a perspective view showing embodiment 1 from the back.

Fig. 3 is a perspective view showing a main portion (a part of which is omitted) of a panel frame of embodiment 1.

FIG. 4 is a middle plate in example 1, wherein (a) is a plan view; (b) is a side sectional view; (c) is a cross-sectional view from the other side.

Figure 5 shows a rear view of the middle plate of example 1.

FIG. 6 is a side sectional view showing a main part of a middle plate in example 1.

FIG. 7 is a plan view of a metal plate according to example 1 (a); (b) a side view in partial cross-section; (c) is a cross-sectional view from the other side.

FIG. 8 is a side sectional view showing a main part of a metal plate of example 1.

FIG. 9 is a plan view showing a state where a metal plate is attached to a middle plate in example 1; (b) is a side sectional view; (c) is a cross-sectional view from the other side.

Fig. 10 is a rear view showing a state in which a metal plate is attached to the middle plate of example 1.

FIG. 11 is a side sectional view of a main part showing a state where a metal plate is attached to a middle plate in example 1.

FIG. 12 is a side sectional view of a main part showing a state where a metal plate is attached to a middle plate in example 1.

FIG. 13 is a plan view showing a state in which a middle plate with a metal plate attached thereto is mounted in a plate frame according to example 1; (b) a side view in partial cross-section; (c) is a side sectional view.

Fig. 14 is a perspective view showing a wiring device of embodiment 1.

Fig. 15(a) and (b) are explanatory views for explaining mounting of the wiring device to the board frame of example 1.

FIG. 16 is a plan view showing another example of the intermediate plate and the metal plate in example 1.

FIG. 17 is a plan view showing still another example of the intermediate plate and the metal plate in example 1.

FIG. 18 is a plan view showing still another example of the intermediate plate and the metal plate in example 1.

FIG. 19 is a plate frame according to example 2, wherein (a) is a plan view; (b) is a left side sectional view; (c) is a right side sectional view; (d) bottom side section view; (e) is a bottom side sectional view; (f) and (6) a rear view.

Fig. 20 is a side sectional view showing a main part of a panel frame of embodiment 2.

Fig. 21 is a side sectional view showing a main part of a panel frame of embodiment 2.

FIG. 22 is a plate frame according to example 3, wherein (a) is a plan view; (b) is a left side sectional view; (c) is a right side sectional view; (d) is a rear view; (e) is a bottom side sectional view;

fig. 23 is a side sectional view showing a main part of a panel frame of embodiment 3.

FIG. 24 is a side sectional view showing a main part of a panel frame according to example 3.

FIG. 25 is a drawing showing a middle plate in example 3, wherein (a) is a plan view; (b) is a side sectional view; (c) is a cross-sectional view from the other side.

Fig. 26 is a rear view of the middle plate according to example 3.

FIG. 27 is a side sectional view showing the essential part of example 3.

FIG. 28 is a plan view of a metal plate according to example 3 (a); (b) a side view in partial cross-section; (c) is a cross-sectional view from the other side.

FIG. 29 is a plan view showing a state in which a metal plate is attached to a middle plate in example 3; (b) is a side sectional view; (c) is a cross-sectional view from the other side.

Fig. 30 is a rear view showing a state in which a metal plate is attached to the middle plate of example 3.

Fig. 31 is a side sectional view of a main part showing a state where a metal plate is attached to a middle plate in example 1.

Fig. 32 is a side sectional view of a main part showing a state where a metal plate is attached to a middle plate in example 1.

The following description refers to the main symbols in the drawings.

Wherein, A is a plate frame; b, a middle plate; c-a metal plate; 1-a board frame body; 2-an opening part; 3-side frame piece; 4-fixing the beam portion; 4 a-locking groove; 5-a movable beam portion; 5 a-locking groove; 6-a connecting part; 30-a metal plate body; 31-exposing the window; 40-a plate body; 41a — open window; 42-side wall; 43-locking male.

Example 1

Embodiment 1 of the present invention is explained with reference to fig. 1 to 18.

The board for device wiring of the present invention is composed of a board frame A, a middle board B and a metal board C.

The rectangular frame-shaped plate frame body 1 is formed by integrally molding each member with a synthetic resin having insulating properties (a thermoplastic resin such as an ABS resin or a thermosetting resin having elasticity). A rectangular opening 2 is provided in the central portion thereof so that a functional surface (a surface on which a switch operating body is provided or a surface on which a receptacle jack is provided) of a built-in type wiring device D60 such as a switch and a receptacle shown in fig. 14 is exposed to the front side, and the rectangular opening 2 is provided. The band-shaped fixed beam portion 4 and the movable beam portion 5 are provided on the back surface of the edge of the opening 2 so as to face each other in the longitudinal direction of the opening. The movable beam portion 5 is separated from one side frame piece 3b of the pair of side frame pieces 3a, 3b along the longitudinal direction of the panel frame body 1, and is integrally connected to the side frame piece 3b at both ends thereof by a connecting portion 6. Here, the synthetic resin forming the plate frame body 1 including the movable beam portion 5 and the connecting portion 6 is a flexible material, and the movable beam portion 5 and the connecting portion 6 are respectively flexible with respect to the plate frame body 1.

Next, the movable beam portion 5 is supported by a pair of laterally narrow reinforcing ribs extending from the entire side frame pieces 3 b. The gap formed between the movable beam portion 5 and the side frame piece 3b is divided into three parts (hereinafter, each part is referred to as a slit 8a-8c) by the above-described rib. Wherein the outer ends of the slits 3a, 3c on both sides are bent toward the connecting portion 6. Further, a pair of elongated hole grooves 9 are provided in the vicinity of the respective beads 7 of the side frame piece 3b to facilitate the flexible movement of the movable portion 5.

In the other direction, three pairs of locking grooves 4a and 5a are provided on the side surfaces of the openings 2 of the fixed beam portion 4 and the movable beam portion 5 at equal distances, respectively, to lock each pair of locking claws 61 projected from both sides of the device 60 of the wiring device D. Therefore, by locking the locking claws 61 provided on the device 60 of the wiring device D to the respective locking grooves 4a, 5a, the device 60 of the wiring device D can be mounted on the board frame body 1 in a state where the above-described kinetic energy surface of the device 60 is exposed from the opening 2. Here, when the locking claws 61 of the wiring device D are locked to the locking grooves 4a, 5a from the back surface of the board frame body 1 at the front end portions of the fixed beam portion 4 and the movable beam portion 5, guide portions 4b, 5b having respective outward-inclined tapered surfaces are provided in order to guide the respective locking claws 61 to the locking grooves 4a, 5 a. That is, as shown in fig. 15, when the wiring device D is mounted on the board frame a, the device 60 of the wiring device D is pushed in from the back surface to the front surface of the board frame body 1 in a state where the locking claws 61 are in contact with the tapered surfaces of the guide portions 4b and 5b, and the locking claws 61 can move along the tapered surfaces of the guide portions 4b and 5b, are guided by the guide portions 4b and 5b, and are smoothly locked with the locking grooves 4a and 5 a.

Contact portions 4D and 5D that contact a part of the front surface of the device-on-wire device 60 in a state where the locking claws 61 are locked in the locking grooves 4a and 5a are provided between the base portions of the fixed beam portion 4 and the movable beam portion 5 and the edge of the opening 2 of the board frame body 1. Therefore, when the device 60 of the wiring device D is urged forward of the board frame a in the state where the board frame a is attached, the forward movement of the device 60 can be controlled by the contact portions 4D, 5D. Similarly, when the device 60 of the wiring device D is urged in the direction of the rear surface of the frame a, the lock claws 61 come into contact with the lock grooves 4a, 5a, and thus the movement of the device 60 can be controlled. Further, since the connecting portion 6, which connects the movable beam portion 5 and the side frame piece 3b of the board frame body 1, is formed by bending the outer ends of the slits 8a and 8c and is made thin, when a strong pressure is applied to the device 60 of the wiring device D from the front to the front, the movable beam portion 5 bends and falls down to the side of the opening 2, and therefore, the locking claw 61 provided on the device 60 of the wiring device D cannot be disengaged from the locking groove 5a of the movable beam portion 5, and the wiring harness D can be prevented from falling off the frame a.

Further, a device removing hole 4c penetrating from the front surface of the board frame body 1 is provided between the locking grooves 4a of the fixed beam portion 4, a tip portion of a screwdriver or a dedicated removing jig is pressed into the device removing hole 4c, the device 60 is pressed toward the movable beam portion side with the tip portion interposed, and the movable beam portion 5 is moved by a small force by the lever principle, and the device 60 of the wiring device D can be removed from the board frame body 1 by releasing the locking between the locking grooves 4a on the fixed beam portion 4 side and the locking claws 61 of the device 60.

However, when the size of the opening 2 is set to the size of the wiring device D shown in fig. 14 as a reference size (hereinafter, such a size is referred to as "one modulus size"), three wiring devices D having one modulus size may be set to a size (hereinafter, such a size is referred to as "three modulus sizes") in which the wiring devices D are arranged in the vertical direction and the orthogonal direction in a state in which the vertical direction of the wiring device D is substantially orthogonal to the vertical direction of the opening 2. Similarly, the pitch of the locking grooves 4a and 5a provided in the fixed beam portion 4 and the movable beam portion 5 of the board frame body 1 is equal to the pitch of the locking claws 61 provided to protrude from the side surface of the device 60 of the single-modulus-sized wiring device D. In particular, the above-mentioned one modulus dimension may be set to an appropriate value [ for example, a large angle general-purpose wiring device (JIS C8304) of japanese industrial standards, etc. ], and any wiring device conforming to such a modulus dimension may be mounted to the board frame a in a general manner.

On the other hand, since the locking grooves 4a and 5a of the fixed beam portion 4 and the movable beam portion 5 are equally spaced and six locking grooves are provided, when the board frame body 1 is provided with one component D having a modulus size, the pair of locking claws 61 provided on the component 60 of the component D can be locked to any one of the locking grooves 4a and 5a, and the mounting position of the component D facing the opening 2 of the board frame body 1 can be arbitrarily selected from five or so. In the case of two-module-sized wiring devices, the number of mounting positions can be selected from three or so.

However, recesses 11 are formed in the side pieces 10 facing in the longitudinal direction of the board frame body 1, and each recess 11 is provided with: long holes 12 for inserting box screws for mounting the panel frame a on a packing box (not shown); and a screw hole 13 for inserting a screw for mounting the plate frame A on a construction surface such as a wall surface; and a gasket locking hole 14 for locking with a gasket (not shown) when the wall plate forming the architectural surface is installed.

Further, at four corners of the board frame body 1, middle plate locking holes 15 are provided for locking projections 43 projected from the back surface of the board frame body 40 of the middle plate B. The middle plate B can be detachably mounted on the front surface of the plate frame a by inserting the locking projections 43 into the middle plate locking holes 15.

On the other hand, the plate main body 40 of the middle plate B is made of a synthetic resin having insulation (a thermoplastic resin such as ABS or a thermosetting resin having elasticity), and is formed in a substantially box shape by integrally forming a rectangular main portion 41 covering the front face of the plate frame a and a side wall 42 projecting from the entire edge of the main portion 41 on the back face. The locking projections 43 are projected at four corners of the back surface of the main portion 41. An opening window 41a is provided in the center of the main portion 41 to expose a functional surface of the wiring device D mounted on the board frame a. Here, the lateral dimension between the facing side walls 42 of the board main body 40 is larger than each lateral dimension of the board frame main body 1. That is, when the middle plate B is attached to the front surface of the plate frame a disposed on the construction surface, the plate frame body 1 is received inside the plate body 40 of the middle plate B, and the front end edge of the side wall 42 of the plate body 40 is almost in contact with the construction surface. As a result, unlike the conventional case, the abutting surface between the panel frame a and the middle panel B projects forward from the building surface, and the abutting line between the two is hardly visible from the side surface, so that the appearance can be made beautiful.

The side walls 42 of the plate body 40 are provided with inclined surfaces 42a inclined toward the main portion 41 from the edges contacting the building surface, and a plurality of control ribs 44 are provided in parallel on the side surfaces of the plate frame body 1 so as to contact the building surface and control the movement of the middle plate B. That is, when the middle plate B is provided on the front surface of the plate frame a, the control rib 44 is in contact with the side surface of the plate frame body 1, and the middle plate B facing the frame body 1 can be prevented from being unstable.

On the other hand, as shown in fig. 3, as the board frame body 1 goes from the side surfaces to the back surfaces of the two frame pieces 3a and 3b, tapered surfaces 3a and 3b inclined outward are formed, and a tapered surface 3a inclined outward and a protruding portion 3d connected to the tapered surfaces and protruding outward are formed. And a rib 45 provided on the front surface of the extension 3d and protruding from the inner surface of the side wall 42 in the direction perpendicular to the longitudinal direction of the main portion 41 of the plate body 40 to prevent the middle plate B from being unstable. Here, when the middle plate B is attached to the plate frame a, the control rib 44 of the middle plate B is guided by the tapered surface formed by the side frame pieces 3a and 3B of the plate frame body 1, and therefore, there is an advantage that the attachment is easy. In addition, instead of using the control beads 44 and the instability prevention beads 45, a contact portion that contacts the extension portion 3d of the plate frame body 1 may be provided along the entire periphery of the side wall 42, and in this case, instability of the middle plate B facing the plate frame a may be prevented.

A pair of notch portions 46 are provided in one side wall 42 in the longitudinal direction of the plate body 40. The middle plate B can be removed from the plate frame a by inserting a jig (tip of a screwdriver or the like) into the notch portion 46, applying a force to the front surface of the plate body 40, and releasing the locking of the plate body 40 locking protrusion 43 and the middle plate locking hole 15 of the plate body 1. Here, the release portion 16 recessed inward from the tapered surface 3c is provided at a position facing the notch portion 46 of the side frame piece 3B of the board frame body 1, and by releasing a jig inserted into the notch portion 46, the inside can be inserted and the middle plate B can be easily urged when detached. Further, from the rear end of the release portion 16, a rib 17 thinner than the projecting portion 3d is extended from the notch portion 46 of the middle plate B to a degree not projecting. That is, although the damage to the building surface may be caused by applying a force with the portion of the jig inserted into the notch portion 46 and the building surface as a fulcrum, the damage to the building surface may be prevented by the action of the jig when the middle plate B is detached from the plate frame a by providing the rib 17 and bringing the jig inserted into the notch portion 46 into contact with the rib 17.

Further, on the back surface of the board main body 40, convex pieces 48a to 48c which are fitted into the three slits 8a to 8c of the board frame main body 1, respectively, are provided in parallel when the board frame a is attached. Here, the dimension of each of the projecting pieces 48a to 48c is set to a dimension of a slight gap between the inner peripheral surface of the gap 8a to 8c and each of the projecting pieces 48a to 48c in a state of being fitted into each of the gaps 8a to 8c of the panel frame body 1. That is, in a state where the middle plate B is attached to the board frame a to which the wiring device D is attached, the three projecting strip pieces 48a to 48c are fitted into the respective slits 8a to 8c of the board frame body 1, and a slight gap is formed between the inner peripheral surfaces of the slits 8a to 8c and the projecting strip pieces 48a to 48c, whereby the movement (flexure) of the movable beam portion 5 of the board frame body 1 is controlled. As a result, when the socket is used as the wiring device D, even when an impact such as pulling a plug inserted into the socket with an abnormally large force is applied, the movement of the movable beam portion 5 is controlled as described above, and the engagement between the engagement claws 61 of the wiring device D and the engagement grooves 5a, 4a of the movable beam portion 5 and the fixed beam portion 4 is difficult to disengage.

In this case, the board frame body 1 is deformed to some extent when the box screws are tightened for mounting the embedded box, and the middle plate B interferes with the board frame body 1 at the peripheral portion of the elongated hole 12 into which the box screw is inserted, so that the mounting appearance of the middle plate B may be unsightly.

However, a metal plate C is installed in front of the middle plate B for the purpose of decorative or design beauty and improvement of fire-proof performance. As shown in fig. 7, the metal plate C has an exposure window 31 formed at approximately the center thereof, through which the functional surfaces (corresponding to the three modulus dimensions) of the three wiring devices D are exposed, and is formed of a metal plate main body 30 having a side portion 30 bent in a substantially arc shape toward the rear surface in the longitudinal direction.

Four mounting pieces 32 are vertically provided on the back surface of the metal plate 30 at approximately equal intervals on both side pieces 30a opposed to each other in the short transverse direction, and a projecting form-locking portion 33 is provided on the inner side of each mounting piece 32 in a projecting manner. As shown in fig. 8, the tapered surface 33a is formed in the locked portion 33 so as to be inclined inward as it is separated from the front end of the side portion 30 a.

On the other hand, in the middle plate B, a fitting recess 47 into which the metal plate main body 30 is fitted is formed in the front surface of the plate main body 40, and further, insertion grooves 49 are formed in both side walls 42 of the plate main body 40 so as to be inserted into the tip portions of both side portions 30a of the metal plate main body 30. As shown in fig. 4 to 6, a recessed portion 50 for releasing the mounting piece 32 is provided on both side walls 42 at a position corresponding to each mounting piece 32 of the metal plate body 30, and a locking piece 51 which is freely curved in a concavo-convex manner at a front end facing the recessed portion 50 is formed integrally with the plate body 40 in the locking portion 33 of the metal plate C.

Then, as shown in fig. 12, the tip portions of both side portions 30a of the metal plate C are inserted into the insertion grooves 49 formed in both side walls 42 of the plate body 40, and the attachment pieces 32 of the metal plate C are inserted into the recessed portions 50. At this time, the tapered surface 33a of the locking portion 33 provided to protrude inside the mounting piece 32 comes into contact with the locking piece 51, and the locking piece 51 pressed by the piece locking portion 33 is bent as the mounting piece 32 is pressed in, and then, as shown in fig. 11, the front end of the locking piece 51 is engaged with the locking portion 33 of the mounting piece 32 in a concave-convex manner, and the metal plate main body 30 of the metal plate C is engaged with the engagement recess 47 in the front surface of the plate frame main body 40 of the middle plate B, and is fixed by the concave-convex engagement of the locking portion 33 and the locking piece 51.

In the present embodiment, the metal plate C is attached and fixed to the front surface of the middle plate B by the engaging portions 33 of the attaching pieces 32 provided on the metal plate C engaging with the projections and recesses of the engaging pieces 51 provided on the plate body 40, but the front end portions of the both side portions 30a of the metal plate body 30 may be pressed and fixed into the insertion groove 49 of the plate body 40 without providing the attaching pieces 32 and the engaging pieces 51.

Alternatively, the metal plate main body 30 may be fixed to the plate main body 40 by adhering the metal plate main body 30 to the front surface of the plate main body 40 using a double-sided tape, or by thermally bonding the metal plate main body 30 to the front surface of the synthetic resin plate main body 40, or by inserting the distal end portions of the both side portions 30a of the metal plate main body 30 into slits (not shown) provided in the plate main body 40 and folding the distal end portions back to the back surface of the main body 40.

However, as described in the present embodiment, it is most desirable that the metal plate C and the middle plate B are fixed by the concave-convex engagement of the engaging portions 33 of the attaching piece 32 and the engaging pieces 51, and that the metal plate C can be easily attached to the middle plate B without requiring a special process such as press-fitting or folding or an attaching member such as a double-sided tape, and that the work efficiency can be improved.

In this embodiment, three wiring devices D having one modulus are mounted at approximately the center of the board frame a, and in accordance with the case of mounting three wiring devices having one modulus, an opening window 41a and an exposure window 31 are provided at approximately the center of the middle plate B and the metal plate C to expose the functional surfaces of the three wiring devices D. However, when mounting one wiring device D having one modulus dimension, a middle plate B having an opening window 41a corresponding to one modulus dimension and a metal plate C having an exposure window corresponding to one modulus dimension as shown in fig. 16 may be used. Alternatively, when two wiring devices (not shown) having one modulus size are mounted or two wiring devices D having one modulus size are mounted in parallel, as shown in fig. 17, a middle plate B having opening windows 41a corresponding to the two modulus sizes and a metal plate C having exposure windows 31 corresponding to the two modulus sizes may be used. In particular, when two wiring devices D having one modulus size are mounted separately, a middle plate B having two opening windows 41a, 41a corresponding to one modulus size and a metal plate C having two exposure windows 31, 31 corresponding to one modulus size as shown in fig. 18 can be used.

Example 2

Referring to fig. 19 to 20, embodiment 2 of the present invention is explained. However, the basic configuration of this embodiment is the same as that of embodiment 1, and the same reference numerals are given to the same portions, and the illustration and description thereof will be omitted.

In embodiment 1, the mounting position of the wiring device D facing the opening 2 of the board frame body 1 is arbitrarily selected from among a plurality of right and left sides by providing six locking grooves 4a and 5a of the fixed beam portion 4 and the movable beam portion 5 at equal distances. However, there is also a disadvantage that, due to the increase in the mounting positions of the wiring device D opposite to the board frame a, it is necessary to prepare the middle plate B having the opening windows 41a corresponding to the respective mounting positions and the metal plate C having the exposure windows 31 corresponding to the respective mounting positions.

Therefore, in the present embodiment, in order to mount three wiring devices D of one modulus size in parallel to the three modulus-sized openings 2 of the board frame a to define the mounting positions, the spacer beads 20 are provided in a protruding manner in the vicinity of the locking grooves 4a, 5a of the fixed beam portion 4 and the movable beam portion 5. These spacer beads 20 are provided in a pair projecting integrally with the panel frame body 1 at respective outer positions of the sets of locking grooves 4a, 5a provided in a pair of three sets on the inner sides of the fixed beam portion 4 and the movable beam portion 5. That is, in addition to the three mounting positions described above, the line device D is mounted in parallel, and the spacer beads 20 protruding between the respective sets of the locking grooves 4a, 5a interfere with the device 60, and therefore, mounting is impossible. In the present embodiment, when the device 60 of the line device D is mounted at the mounting position, each of the barrier ribs 20 is protruded at a position contacting at least a part of the side surface of the device 60, that is, the barrier ribs 20 also function as a control means for controlling the instability of the device 60 of the line device D in the mounted state on the board frame a. Therefore, by controlling the instability of the component 60 in the mounted state, even when unnecessary force is applied to the component 60, inconvenience such as damage to the locking claws 61 can be prevented.

Example 3

Embodiment 3 of the present invention is explained with reference to fig. 22 to 32.

In the above embodiment 1, a so-called single-coupled type having only one opening 2 of three modulus sizes at about the center of the frame body 1 is listed, whereas the present embodiment is a so-called double-coupled type having three opening 2 of modulus sizes arranged in parallel in the direction orthogonal to the longitudinal direction. Since the basic configuration is the same as in examples 1 and 2, the same reference numerals are given to the same parts, and the description thereof will be omitted.

The board frame body 1 'of the board frame a' of the present embodiment has a structure in which two single-link board frame bodies 1 of the embodiment 1 are arranged in the longitudinal orthogonal direction and formed integrally as shown in fig. 22. Three openings 21, 22 of modulus size are provided in the longitudinal direction orthogonal direction at about the center of the plate frame body 1 ', and a fixed beam portion 4' is provided at the center frame piece partitioning the two openings 21, 22. As shown in fig. 23, locking grooves 4a are provided in pairs and three groups at equal intervals on both sides of the fixed beam portion 4'. Further, the spacer beads 20 are protruded outside the respective locking groove 4a groups in the same manner as in example 2.

The movable beam portion 5, the slits 8a to 8c, and the groove 9, which are connected by the connecting portion 6, are provided in the frame pieces 3a and 3b on both sides of the board frame body 1'. Each movable beam portion is further provided with a pair of locking grooves 5a of three sets. Further, the side sheet 10 on both sides of each opening 21, 22 is provided with a recess 11, a long hole 12, a screw hole 13, and a gasket locking hole 14. The plate frame body 1 'has middle plate locking holes 15 at four corners thereof, into which locking protrusions 43 of the locking middle plate B' are inserted.

On the other hand, as shown in fig. 25 and 26, the plate main body 40 ' of the middle plate B ' in the present embodiment has a pair of open windows 41a ' arranged in the vertical orthogonal direction at about the center of the main portion 41 ' forming the side wall 42 ' over the entire circumference. The size of the opening window 41 a' is a size corresponding to three modulus sizes. When three wiring devices D having one modulus size are mounted in line on the board frame a', and when three wiring devices having three modulus sizes are mounted, the functional surface of the wiring devices D can be exposed. In this embodiment, the dimension in the mold direction between the side walls 42 ' opposed to the board main body 40 ' is larger than the respective lateral dimensions of the board frame main body 1 ', and therefore, when the middle board B ' is attached to the front surface of the board frame a ', the board frame main body 1 ' is received inside the board main body 40 ', and as in embodiment 1, almost no butt line between the two is visible from the outside, and the appearance can be made beautiful.

Also, on the back surface of the main portion 41 ', there are provided a locking projection 43 to be inserted into the middle plate locking hole 15 in the plate frame body 1', and protruding pieces 48a to 48c to be fitted into the respective slits 8a to 8c of the side frames 3a, 3 b. Also, the side wall 42 'is provided with a control rib 44 which contacts the side of the plate frame body 1' and prevents the middle plate B 'opposite to the plate frame body 1' from being unstable, a rib 45 which is provided in front of the extension 3d of the plate frame body 1 'and prevents the middle plate B' from being unstable, and a notch portion 46 into which a jig is inserted when the middle plate B 'is detached from the plate frame a'.

On the other hand, in front of the plate main body 40 'of the middle plate B', a metal plate main body 30 'fitting recess 47 of the metal plate C' as shown in fig. 25 and 27 is formed, and insertion grooves 49 into which the tip portions of both side portions 30a 'of the metal plate main body 30' are inserted are formed in both side walls 42 'of the plate main body 40'. As shown in fig. 27, recesses 50 for releasing the mounting pieces 32 are provided on both side walls 42 'at positions corresponding to the mounting pieces 32 of the metal plate body 30'. Further, at the front end facing the recess 50, a locking piece 51, which is freely curved in a concavo-convex manner at the locking portion 33 of the metal plate C ', is formed integrally with the plate body 40'.

As shown in fig. 28, the metal plate C' is formed by arranging a pair of exposure windows 311 and 312 corresponding to the three modulus dimensions in the vertical orthogonal direction. Four mounting pieces 32 are provided perpendicularly to the back surface at approximately equal intervals on both side portions 30a 'opposed to the metal plate main body 30', and a projecting form-locking portion 33 is provided so as to project on the inner side of each mounting piece 32. The tapered surface 33a inclined inward as it goes away from the tip of the side portion 30 a' is formed in the locked portion 33.

Then, the front end portions of both side portions 30a ' of the metal plate C ' are inserted into the insertion grooves 49 formed in both side walls 42 ' of the plate body 40 ', and the attachment pieces 32 of the metal plate C ' are inserted into the recessed portions 50. At this time, the tapered surface 33a of the locking portion 33 provided to protrude inside the mounting piece 32 comes into contact with the locking piece 51, and the locking piece 51 pressed by the locking portion 33 is bent as the mounting piece 32 is pressed in, and then, as shown in fig. 31, the tip of the locking piece 51 is locked to the locking portion 33 of the mounting piece 32 in a concave-convex manner, and the metal plate main body 30 'of the metal plate C' is fitted to the fitting recess 47 in the front surface of the plate frame main body 40 'of the intermediate plate B', and is fixed by the concave-convex locking of the locking portion 33 and the locking piece 51.

In the present embodiment, in the case where the wiring device is arranged by using two sets of the board frame a, the middle board B, and the metal plate C, only one set of the board frame a ', the middle board B ', and the metal plate C ' is used, which has an advantage of reducing the number of components. In addition, the number of wiring devices that can be arranged and the mode of combination can be increased at one place, and the advantage of convenience in use is also provided.

The effects of the present invention will be described below.

The board for device wiring of the present invention comprises: a plate frame which can cover an opening face of an insertion hole provided in a construction surface and has: an opening part for exposing the functional surface of the embedded wiring device; a fixed beam portion having a locking groove for locking a locking claw with the wiring device and provided at an edge of the opening portion; a movable beam portion having a locking groove for locking the locking claw and provided at an edge of the opening portion so as to be bendable; further comprising: a middle plate mounted on the front face of the frame plate, having an opening window through which the functional face of the wiring device is exposed, and having a main portion covering the front face of the plate frame and a side wall projecting from about the entire edge of the main portion; a metal plate covering the front surface of the middle plate and having an exposure window for exposing the functional surface of the wiring device; the transverse dimension between the opposite side walls of the middle plate is larger than the transverse dimensions of the plate frame. Therefore, when the middle plate is mounted on the front surface of the plate frame, the plate frame is received inside the middle plate, and the front end edge of the side wall of the middle plate is almost contacted with the creation surface, so that the abutting surface of the plate frame and the middle plate does not protrude forward from the creation surface like the prior art, and the abutting line of the plate frame and the middle plate is almost not seen from the side surface, thereby having the effect of making the appearance beautiful.

In the device wiring board of the present invention, at least a part of the metal plate is pressed into the intermediate plate, and the metal plate is fixed to the intermediate plate, so that the metal plate can be easily attached to the intermediate plate.

The plate for device wiring of the present invention has an effect that the metal plate can be easily attached to the middle plate by attaching the metal plate to the middle plate with a double-sided tape.

The plate for device wiring of the present invention has one or more locking parts on the metal plate, and one or more locked parts for locking the locking parts and the concave-convex parts on the middle plate, so that the plate for device wiring can be easily assembled on the middle plate without special process and installation parts, and the assembly efficiency can be improved.

The device wiring board of the present invention has an effect that the metal plate can be easily attached to the middle plate because the metal plate is thermally bonded to the middle plate.

The device wiring board of the present invention has an effect that the metal plate can be easily attached to the middle plate because a part of the metal plate is folded back to the back surface of the middle plate.

The device wiring board of the invention is provided with the reinforcing rib connected with the board frame surface on the inner side surface of the middle board, thereby preventing the unstable effect along the middle board construction surface direction opposite to the board frame.

The board for device wiring of the present invention has an effect of preventing the instability along the direction of the medium plate construction surface facing the board frame, because the contact portion contacting the board frame is provided along the entire periphery of the side wall of the medium plate.

In the device wiring board of the present invention, the protruding portion where the rib or the contact portion comes into contact with the front surface is provided at least at a part of the periphery of the board frame, and therefore, there is an effect that instability in a direction approximately perpendicular to the middle board construction surface facing the board frame can be prevented.

The board for device wiring of the present invention is provided with the insertion hole in the board frame for inserting the box screw of the embedded box for installing the embedded part embedded in the embedding hole, and the extension part is provided in the part outside the periphery of the insertion hole, so that the board has the effect that the extension part does not interfere with the middle board even if the board frame is deformed by tightening the box screw, and the installation appearance is beautiful.

The board for device wiring according to the present invention has an effect that the middle plate can be easily attached by guiding the middle plate by the tapered surface when the middle plate is covered from the front surface of the board frame because the tapered surface is formed at the edge of the board frame to guide the middle plate in the middle plate attaching direction.

The board for device wiring according to the present invention has an effect that the middle plate is guided by the tapered surface when the middle plate is covered from the front surface of the plate frame, and thus the board can be easily mounted.

The device wiring board of the invention convexly arranges the locking convex piece on the back of the middle plate, simultaneously arranges the locking hole for locking the locking convex piece on the front of the board frame, and arranges the notch groove for inserting the clamp for detaching the middle plate on the side wall of the middle plate, thereby having the effects of inserting the clamp into the notch groove, lifting the middle plate by utilizing the lever principle, thus releasing the locking of the locking convex piece and the locking hole, and easily detaching the middle plate from the board frame.

The device wiring board of the present invention has an effect that the releasing portion releases the jig inserted into the notch portion to insert the jig into the interior, and the middle plate is easily pressed when the middle plate is detached, because the releasing portion is provided on the frame to release the jig for detaching the middle plate at the position corresponding to the notch portion.

The board for device wiring of the present invention has an effect that the rib not protruding from the notch of the middle plate is extended from one end of the back surface of the relief portion, and therefore, the rib is contacted by the jig inserted into the notch, and the damage to the construction surface can be prevented by the jig when the middle plate is detached from the board frame.

In the device wiring board of the present invention, the connecting portion, which is formed by connecting the side frame piece on the board frame side and the movable beam portion to each other in a bendable manner, is provided at both ends of the movable beam portion, and both ends of the gap formed between the movable beam portion and the side frame piece are bent toward the connecting portion.

In the device wiring board of the present invention, the locking grooves are provided at equal distances in the fixed beam portion and the movable beam portion, and therefore, the degree of freedom in the mounting position of the wiring device with respect to the board frame can be increased.

In the device wiring board of the present invention, the separation ribs are provided in the fixed beam portion and the movable beam portion, and when the wiring device is locked and fixed by the fixed beam and the movable beam portion while exposing the functional surface from the opening of the board frame, the mounting position of the wiring device opposite to the opening is separated at a predetermined position, and therefore, an erroneous mounting position of the wiring device opposite to the wiring device board frame can be prevented.

In the device wiring board of the present invention, the projecting piece which is fitted into the gap formed between the movable beam portion and the side frame piece is projected from the back surface of the middle plate, and therefore, the movement of the movable beam portion can be controlled by the projecting piece, and therefore, even when a large impact or the like is applied to the wiring device, it is difficult to cause the locking claw of the wiring device to come off from the locking groove of the movable beam portion.

The board for wiring device of the present invention is provided with a control means in the board frame so as to contact at least a part of the side surface of the wiring device and control the instability of the wiring device when the locking claws are locked in the locking grooves of the fixed beam portion and the movable beam portion and the wiring device is locked in the board frame.

In the board for device wiring according to the present invention, at least the edge portion of the locking hole of the board frame is thinned, so that even if the board frame is deformed to some extent by tightening a box screw or the like, the edge portion of the locking hole is thinned, so that the deformation of the locking hole portion is hardly affected, and the effect of making the appearance of the middle board beautiful can be obtained by attaching the middle board to the board frame.

In the board for device wiring according to the present invention, since the device removing hole penetrating from the front surface of the side frame piece of the board frame to the surface facing the fixed beam portion wiring device is provided between the locking grooves, the wiring device is pressed toward the movable beam portion side by the tip portion of the jig attached to the device removing hole, and the movable beam portion can be moved by a small force according to the principle of leverage, and the locking between the locking groove on the fixed beam portion side and the wiring device locking claw can be released, and the wiring device can be easily removed from the board frame.

The board for device wiring of the present invention comprises: a plate frame which can cover an opening face of an insertion hole provided in a construction surface and has: a pair of openings for exposing the functional surface of the embedded wiring device; a fixed beam portion having a locking groove for locking a locking claw with the wiring device and provided between the pair of opening portions; a movable beam portion having a locking groove for locking the locking claw and provided at an edge of the opening portion so as to be bendable; further comprising: a middle plate mounted in front of the frame plate, having a pair of opening windows that can expose the functional surface of the wiring device, and having a main portion covering the front face of the plate frame and a side wall protruding from the entire joint edge of the main portion; a metal plate covering the front surface of the middle plate and having a pair of exposure windows capable of exposing the functional surface of the wiring device; the lateral dimension between the side walls opposite to the middle plate is larger than the lateral dimensions of the plate frame. Therefore, when the middle plate is mounted in front of the plate frame, the plate frame is received inside the middle plate, and the front end of the side wall of the middle plate is almost contacted with the building surface, so that the abutting surface between the plate frame and the middle plate does not protrude forward from the building surface like the prior art, and the abutting line between the plate frame and the middle plate is almost not seen from the side surface, thereby the appearance is beautiful. Meanwhile, when the wiring device is arranged by using two sets of the board frame, the middle board and the metal plate, the problem can be solved by only using one set of the board frame, the middle board and the metal plate, thereby having the effects of reducing the number of used components, increasing the number of the wiring devices which can be arranged and the mode of combination at one position and being convenient to use.

Claims (22)

1. A board for device wiring, characterized by comprising: a plate frame which can cover an opening face of an insertion hole provided in a construction surface and has: an opening part for exposing the functional surface of the embedded wiring device; a fixed beam part having a locking groove, locking the locking claw with the wiring member, and provided at the edge of the opening part; a movable beam portion having a locking groove for locking the locking claw and provided at an edge of the opening portion so as to be bendable; further comprising: a middle plate mounted on the front face of the frame plate, having an opening window through which the functional face of the wiring device is exposed, and having a main portion covering the front face of the plate frame and a side wall projected from all edges of the main portion; a metal plate covering the front surface of the middle plate and having an exposure window for exposing the functional surface of the wiring device; the transverse size of the opposite side walls of the middle plate is larger than that of each transverse size of the plate frame; one or more locking parts are arranged on the metal plate, and one or more locked parts which are locked with the locking parts in a concave-convex mode are arranged on the middle plate.

2. The board for device wiring according to claim 1, wherein at least a part of said metal plate is pressed into said middle plate and fixed to the middle plate.

3. The board for device wiring as claimed in claim 1, wherein said metal plate is stuck to said middle plate with a double-sided adhesive tape.

4. The board for device wiring as claimed in claim 1, wherein said metal plate is thermally bonded to said middle plate.

5. The board for device wiring as claimed in claim 1, wherein a part of said metal plate is folded back to a back surface side of said middle plate.

6. The board for device wiring as claimed in claim 1, wherein a reinforcing rib is provided on an inner side of said middle plate to contact with a side surface of said board frame.

7. The board for device wiring as claimed in claim 1, wherein a contact portion to be brought into contact with the side face of said board frame is provided on the side wall of said middle board along about the entire periphery thereof.

8. The board for device wiring as claimed in claim 6 or 7, wherein a protruding portion of said rib or said contact portion which is contacted from the front face is provided at least at a part of the periphery of said board frame.

9. The board for device wiring as claimed in claim 8, wherein an insertion hole is provided in said board frame for inserting a box screw of an insertion box for installing said insertion hole, and said extension portion is provided in a portion other than a periphery of said insertion hole.

10. The board for device wiring as claimed in claim 1, wherein a tapered surface is formed at an edge portion of said board frame so as to be oriented in a direction in which said middle board is attached.

11. The board for device wiring as claimed in claim 1, wherein a tapered surface is formed at an edge portion of said middle plate so as to be oriented in a direction of mounting said board frame.

12. The board for device wiring as claimed in claim 1, wherein locking projections are provided on the back surface of said middle plate in a protruding manner, locking holes for locking said locking projections are provided on the front surface of said plate frame, and a notch portion for inserting a jig for removing the middle plate is provided on the side wall of said middle plate.

13. The board for device wiring as claimed in claim 12, wherein a releasing portion is provided on said board frame to release a jig for detaching the middle board at a position corresponding to said notch portion.

14. The board for device wiring as claimed in claim 13, wherein a reinforcing rib not projected from the notch portion of said middle plate is provided extending from one end of the back surface of said relief portion.

15. The board for distributing components as claimed in claim 1, wherein a connecting portion to which a side frame piece on the board frame side and the movable beam portion are connected so as to be bendable is provided at both ends of the movable beam portion, and both ends of a slit formed between the movable beam portion and the side frame piece are bent toward the connecting portion.

16. The board for distributing components as claimed in claim 1, wherein said locking grooves are provided at equal distances in said fixed beam portion and said movable beam portion.

17. The board for distributing devices as claimed in claim 1, wherein said fixed beam portion and said movable beam portion are provided with a spacer rib for spacing at a predetermined position a mounting position of the distributing device opposite to said opening portion when the functional surface is exposed from said opening portion of the board frame and the distributing device is locked and fixed to the fixed beam portion and the fixable beam portion.

18. The board for distributing components as claimed in claim 15, wherein a projecting strip piece is provided on the back surface of the middle plate to be fitted into the gap formed between the movable beam portion and the side frame piece.

19. The board for wiring devices as claimed in claim 1, wherein a control means is provided on said board frame for controlling instability of the wiring device by engaging the engaging claws with the engaging grooves of said fixed beam portion and movable beam portion and by engaging the wiring device with at least a part of the side surface of said wiring device when said wiring device is held on said board frame.

20. The board for device wiring as claimed in claim 12, wherein at least an edge portion of said board frame locking hole is thinned.

21. The board for distributing components as claimed in claim 1, wherein a component removing hole penetrating from a front surface of the side frame piece of the board frame to a surface facing the fixed beam component is provided between the locking grooves.

22. A board for device wiring, characterized by comprising: a plate frame which can cover an opening face of an insertion hole provided in a construction surface and has: a pair of openings for exposing the functional surface of the embedded wiring device; a fixed beam portion having a locking groove for locking a locking claw with the wiring device and provided between the pair of opening portions; a movable beam portion having a locking groove for locking the locking claw and provided at an edge of the opening portion so as to be bendable; further comprising: a middle plate mounted on the front face of the frame plate, having a pair of opening windows that can expose the functional face of the wiring device, and having a main portion covering the front face of the plate frame and a side wall projected from all edges of the main portion; a metal plate covering the front surface of the middle plate and having a pair of exposure windows capable of exposing the functional surface of the wiring device; the transverse dimension between the side walls opposite to the middle plate is larger than the transverse dimensions of the plate frame; one or more locking parts are arranged on the metal plate, and one or more locked parts which are locked with the locking parts in a concave-convex mode are arranged on the middle plate.