JP4548328B2 - Mounting fixture for electrical equipment - Google Patents

Description

  The present invention relates to an electrical equipment fixture.

2. Description of the Related Art Conventionally, there are electrical appliance attachments that are attached to an attachment surface such as a ceiling surface while electrical devices such as lighting devices and fire alarms are attached. In such an electrical equipment fixture, there is one in which a connection port to which a wiring molding is connected is provided on an outer peripheral portion in order to connect a wiring to an electric appliance (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 5-274908

  However, in the conventional electrical equipment fixture, only the wiring molding is inserted into the connection port. Therefore, the wiring molding enters the electrical equipment fixture too much, and the wiring molding and the electrical equipment fixture Relative positioning is difficult, and there is a problem that it takes time to connect the electrical equipment fixture and the wiring molding.

  Then, an object of this invention is to improve the connection workability | operativity with the molding for wiring in the fixture for electrical devices.

The invention according to claim 1 is an electrical equipment fixture to which electrical equipment connected to the wiring is attached and which is attached to the attachment surface , wherein the outer peripheral wall is erected on the base and the peripheral edge of the base And, through the molding opening formed in the outer peripheral wall, the end of the wiring molding that has the opening through which the wiring is inserted and is attached to the mounting surface is inserted, as well as have a wire insertion opening in which the wire is inserted, the outer peripheral erected on the inside of the base of the wall, the in contact with molding for the wire to the end surface of the wiring molding to be inserted into the molding inserting portion And a molding receiver that restricts relative movement inward of the electrical equipment fixture.

According to a second aspect of the present invention, there is provided the electrical equipment fixture according to the first aspect, wherein the molding receiver has a plurality of notches corresponding to the plurality of types of wiring moldings having different cross-sections, and the molding receiver on the outer peripheral wall. provided on the opposite part to part, the by being removed along one of the cut-out portion, the molding opening that allows insertion of the wiring mall corresponding to the notch in the molding inserting portion and includes a knock-out portion formed in the outer peripheral wall, the width of the wiring insertion port, characterized in that it is a same size as the minimum width of the width of the opening of the plurality of types of the wiring Mall.

  According to a third aspect of the present invention, in the electrical equipment fixture according to the first or second aspect, the molding receiver is made of resin.

  According to the first aspect of the present invention, the molding receiving portion regulates the relative movement of the wiring molding into the electrical equipment mounting inward, so that the electrical equipment mounting and the wiring molding are relatively relative to each other. Positioning can be performed easily, and the connection workability between the electrical equipment fixture and the wiring molding can be improved.

  According to the second aspect of the present invention, the width of the wiring insertion port is the same as the minimum width among the widths of the openings of the plurality of types of wiring moldings. However, it is possible to suppress the wiring from hitting the opening edge of the wiring molding.

  According to the invention of claim 3, since the molding receiver is made of resin, when the wiring hits the molding receiving portion, the molding receiving portion hits elastically compared to the case where the molding receiving portion is made of metal. Can be reliably protected.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an electrical equipment fixture of the present embodiment, FIG. 2 is a perspective view showing the electrical equipment fixture as viewed from the front side, and FIG. 3 is a perspective view showing the electrical equipment fixture from the back side. FIG. 4 is a front view showing the electrical equipment fixture, FIG. 5 is a rear view showing the electrical equipment fixture, and FIG. 6 is a wiring molding attached to the electrical equipment fixture. FIG. 7 is an enlarged view of the knockout portion of the electrical device fixture of FIG. 5, and FIG. 8 is a cross-sectional view taken along the line AA of FIG. 5.

  The electrical equipment fixture 1 shown in FIG. 1 is an electrical equipment (not shown) such as a fire alarm or a lighting device on the mounting surface 2 such as a ceiling surface or vertical wall surface of the building via the electrical equipment fixture 1. Is attached and is made of resin. The electrical equipment fixture 1 is attached to the mounting surface 2 with screws 3 as mounting means in a state in which the back surface thereof is in contact with the mounting surface 2, and the electrical equipment is attached to the front side thereof. A wiring molding 4 is connected to the electrical equipment fixture 1, and wiring 5 routed in the wiring molding 4 can be connected to the electrical equipment. The wiring 5 is, for example, a power supply line or a communication line.

  The wiring molding 4 has a base wall portion 4a and a pair of parallel side wall portions 4b erected on both side edges of the base wall portion 4a, and is formed in a U-shaped cross section. An opening 4d through which the wiring 5 is inserted is formed. The wiring molding 4 is attached to the mounting surface 2 by bonding or the like with the U-shaped opening facing the mounting surface 2. Here, as will be described in detail later, the electrical equipment fixture 1 can be connected to three types of wiring moldings 4 having different cross-sectional sizes. In the drawing, the wiring molding 4 having the largest cross section is shown.

  As shown in FIGS. 2 to 6, the electrical equipment fixture 1 includes a disk-shaped base 11 and an annular outer peripheral wall 12 erected on the peripheral edge of the back surface of the base 11. .

  On the surface of the base 11, an appliance mounting portion 13 to which an electrical appliance (not shown) is attached is formed. A pair of screw holes 14 are formed in the appliance mounting portion 13, and the electrical appliance is fastened to the appliance mounting portion 13 by screws (not shown) that are screwed into the screw holes 14.

  A pair of attachment portions 15 are formed on the base portion 11. These attachment portions 15 are formed in a shape recessed toward the back side when viewed from the front, and have a groove shape with a front opening. The mounting portion 15 is formed in an arc shape having the same radius with the center line of the electrical equipment mounting tool 1 orthogonal to the front and back surfaces of the base portion 11 (hereinafter referred to as mounting tool center line) as the center.

  The back wall 16 of the attachment portion 15 is formed with an arc-shaped elongated hole 17 having the same radius with the attachment center line as the center. A round hole 18 is formed in communication with one end of the long hole 17. The long hole 17 is formed in a width that allows the neck 3a of the screw 3 to pass but does not allow the head 3b of the screw 3 to pass, whereas the round hole 18 allows the head 3b of the screw 3 to pass. It is formed in the size to be. Then, the attachment portion 15 is fastened to the attachment surface 2 by screwing the screw 3 inserted through the long hole 17 from the front side into the attachment surface 2. Thereby, the electrical equipment fixture 1 is attached to the attachment surface 2. As another attachment method, the screw 3 is attached in a state where the head 3b is separated from the attachment surface 2, the head 3b of the screw 3 is passed through the round hole 18, and then the electric device attachment 1 is turned. The neck 3 a of the screw 3 may be moved to move to the long hole 17, and the mounting portion 15 may be locked by the screw 3.

  A first wiring insertion port 19 communicating with the grooves of the pair of attachment portions 15 is formed in the central portion of the base 11, and the wiring connection port of the electric device is electrically connected by the first wiring insertion port 19. It can be exposed in the fixture 1 for equipment.

  Four molding insertion portions 20 into which the wiring moldings 4 are inserted are provided at equal intervals along the circumferential direction on the outer peripheral portion of the electrical equipment fixture 1. These molding insertion portions 20 receive the wiring molding 4 such that the end face 4 c of the wiring molding 4 faces the fixture center line of the electrical equipment fixture 1. The pair of molding insertion portions 20 among these molding insertion portions 20 is disposed between the attachment portion 15 and the outer peripheral wall 12.

  The molding insertion part 20 has a pair of side walls 21 and a wall-shaped molding receiving part 22. The pair of side walls 21 are provided so as to be directed from the outer peripheral wall 12 to the inside of the electrical device fixture 1 and are parallel to each other. The molding receiver 22 is provided between the ends of the pair of side walls 21 on the inner side of the electrical equipment fixture 1, is located on the inner side of the outer peripheral wall 12, and is connected to the side wall 21 at a right angle. These side walls 21 and the molding receiver 22 are connected to the base 11.

  The back surface of the molding insertion portion 20 is opened, and the surface of the molding insertion portion 20 on the outer peripheral wall 12 side is closed by a removable knockout portion 23 provided on the outer peripheral wall 12. By removing the knock-out portion 23, a molding opening 24 (FIG. 1, FIG. 6) is formed in the outer peripheral wall 12, a surface of the molding insertion portion 20 on the outer peripheral wall 12 side is opened, and the molding insertion portion 20 is opened. The wiring molding 4 can be inserted. The molding opening 24 constitutes a part of the molding insertion portion 20.

  The side walls 21 are opposed to the pair of side walls 21 of the wiring molding 4, and the width between the side walls 21 is the width of the wiring molding 4 having the largest cross-sectional size (between the outer surfaces of the pair of side wall portions 4b). (Distance) is set to be approximately the same.

  The molding receiver 22 can be brought into contact with the end surface 4c of the wiring molding 4 inserted into the molding insertion portion 20, and inward of the electrical equipment fixture 1 of the wiring molding 4 by the contact with the end surface 4c. The relative movement of is controlled.

  Further, the molding receiving portion 22 is formed with a second wiring insertion port 26 which is a wiring insertion port through which the wiring 5 communicates with the opening 4d of the wiring molding 4 and this second wiring insertion port. 26 enables the wiring 5 to be routed inward of the electrical equipment fixture 1. The width a of the second wiring insertion opening 26 has the same dimension as the minimum width among the widths b of the openings 4 d of the plurality of types of wiring moldings 4.

  The molding receiver 22 of one pair of molding inserts 20 is integrated with the outer peripheral side vertical wall 27 of the mounting part 15, and a third wiring insertion formed on the inner peripheral side vertical wall 28 of the mounting part 15. It communicates with the inside of the electrical equipment fixture 1 via the port 29. In addition, the molding receiver 22 of the other pair of molding insertion parts 20 is divided into two wall parts 22 a by the second wiring insertion port 26. That is, the edge of the second wiring insertion port 26 on the side opposite to the base 11 (back side) is opened, whereby the second wiring insertion port 26 is connected to the rear side of the electrical equipment fixture 1. Thus, the wiring 5 can be inserted.

  As shown in FIGS. 7 and 8, the knockout portion 23 is formed thinner than other portions of the outer peripheral wall 12. The knockout portion 23 can selectively form molding openings 24 (FIGS. 1 and 6) having sizes corresponding to three types of wiring moldings 4 having different cross-sectional sizes. Specifically, on the inner surface of the knockout portion 23, three cutout portions 30 corresponding to the three types of wiring moldings 4 are provided concentrically. By selecting one of these cutout portions 30 and cutting out the knockout portion 23 along the cutout portion 30, it is possible to selectively obtain mall openings 24 of different sizes. The molding opening 24 is formed in a size that does not cause a gap between the outer surface of the corresponding wiring molding 4 and the inner surface of the molding opening 24. In the drawing, the molding opening 24 having the maximum diameter is shown.

  Next, an example of a method for attaching the electrical device to the mounting surface 2 by the electrical device fixture 1 and connecting the wiring 5 to the electrical device will be described. First, the knockout portion 23 is removed along the cutout portion 30 corresponding to the wiring molding 4 cutout portion 30 disposed on the mounting surface 2 to form a molding opening 24. Then, when the electrical device fixture 1 is placed along the mounting surface 2, the wiring molding 4 is inserted into the molding insertion portion 20 from the back side or the side of the electrical device fixture 1. At this time, the molding receiving portion 22 is brought into contact with the end face 4c of the wiring molding 4 to restrict relative movement of the wiring molding 4 to the electrical equipment fixture 1. As described above, the electrical appliance fixture 1 and the wiring molding 4 are connected by the molding insertion portion 20. Then, the electrical equipment fixture 1 is attached to the attachment surface 2 with the screws 3.

  Next, the wiring 5 projecting from the opening 4d of the wiring molding 4 is connected to the electrical equipment, and the electrical equipment is attached to the mounting portion 15 with screws in a state where the wiring 5 is positioned in the electrical equipment fixture 1. .

  As another method, the wiring molding 4 may be attached to the attachment surface 2 after the electrical equipment fixture 1 is attached to the attachment surface 2. In this case, the wiring molding 4 is inserted into the molding insertion portion 20 from the side of the electrical equipment fixture 1, and the end surface 4 c of the wiring molding 4 is brought into contact with the molding receiving portion 22 of the molding insertion portion 20.

  According to the present embodiment described above, the molding receiving portion 22 restricts the relative movement of the wiring molding 4 into the electrical equipment mounting tool 1, whereby the electrical equipment mounting tool 1 and the wiring molding 4. Can be easily positioned relative to each other, and the connection workability between the electrical equipment fixture 1 and the wiring molding 4 can be improved.

  In addition, according to the present embodiment, the width a of the second wiring insertion opening 26 has the same dimension as the minimum width among the widths b of the openings 4d of the plurality of types of wiring moldings 4, thereby In any case of the molding molding 4, the wiring 5 can be prevented from hitting the opening edge of the wiring molding 4.

  In addition, according to the present embodiment, since the molding receiver 22 is made of resin, when the wiring 5 hits the molding receiver 22, the molding receiver 22 hits more elasticly than when the molding receiver 22 is made of metal. The wiring 5 can be reliably protected. Therefore, there is no need to provide a bushing member that is a dedicated member for protecting the wiring 5 between the electrical equipment fixture 1 and the wiring molding 4, and the configuration for routing the wiring 5 for electrical equipment is simplified. can do.

  The present invention is not limited to this embodiment, and various other embodiments can be adopted without departing from the gist of the present invention.

It is a perspective view which shows the fixture for electric equipment of one Embodiment of this invention. It is a perspective view which shows the fixture for electrical equipment of one Embodiment of this invention seeing from the front side. It is a perspective view which shows the fixture for electric equipment of one Embodiment of this invention seeing from the back side. It is a front view which shows the fixture for electrical equipment of one Embodiment of this invention. It is a rear view which shows the electrical equipment fixture of one Embodiment of this invention. It is a rear view which shows the state by which the wiring molding was attached to the fixture for electric equipment of one Embodiment of this invention. It is an enlarged view of the knockout part of the fixture for electric equipments of FIG. It is sectional drawing along the AA line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrical equipment fixture 2 Mounting surface 4 Wiring molding 4c End face 4d Opening 5 Wiring 12 Outer peripheral wall 20 Mole insertion part 22 Mole receiving part 23 Knockout part 24 Mole opening 26 2nd wiring insertion port (wiring insertion port)
30 Notch

Claims (3)

An electrical device to be connected to the wiring is attached, and is an electrical device fixture to be attached to the mounting surface,
The base,
An outer peripheral wall erected on the peripheral edge of the base,
Through the molding opening formed in the outer peripheral wall, the end of the wiring molding that has an opening through which the wiring is inserted and is attached to the mounting surface is inserted,
As well as have a wire insertion opening in which the wire is inserted, the outer peripheral erected on the inside of the base of the wall, the in contact with molding for the wire to the end surface of the wiring molding to be inserted into the molding inserting portion A molding receiver for restricting relative movement inward of the electrical equipment fixture;
A fixture for electrical equipment, comprising: A plurality of notches corresponding to the plurality of types of wiring moldings having different cross-sections are provided at a portion facing the molding receiving portion on the outer peripheral wall, and are removed along one of the notches. the Rukoto, the mall opening that allows insertion of the wiring mall corresponding to the notch in the molding inserting portion, provided with a knock-out portion formed in the outer peripheral wall,
The electrical equipment fixture according to claim 1, wherein the width of the wiring insertion opening has the same dimension as the minimum width among the widths of the openings of the plurality of types of wiring moldings.   The electrical equipment fixture according to claim 1, wherein the molding receiver is made of resin.

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