JPH08196018A - Device for mounting electric component on wall - Google Patents

Abstract

PURPOSE: To simultaneously perform the operation of fixing a supporting body and the operation of fixing an electric component. CONSTITUTION: A supporting body 3 fitted into an opening part 2 provided in a wall body 1 has a main body 7 fitted into the opening part 2 and a stopper piece integratedly formed with the main body 7 and made to abut on the surface of the wall body 1, and the cylindrical shaft 12a of a movable stopper member 12 is inserted into a through hole 6 provided through the main body 7, thereby rotatably mounting the movable stopper member 12 on the supporting body 3. A bolt 5 for fixing an electric component 4 to the supporting body 3 is screwed into a thread hole 22a formed in the base end part of the cylindrical shaft 12a and therefore the movable stopper member 12 is rotated by the screwing force, and the projecting piece 12b of the movable stopper member is projected outward out of the supporting body 3, thereby being engaged with the rear surface of the wall body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical component wall mounting device for mounting electrical components such as outlets and switches on a wall such as a partition wall of a building body by a so-called retrofitting method.

[0002]

2. Description of the Related Art Conventionally, there is a so-called prefabricated method as a method of attaching electrical parts such as outlets and switches to a wall such as a partition wall of a building frame. This is because after fixing a box-shaped support member to a wall pillar member, the wall member is fixed to the pillar member, and an opening is opened in a portion of the wall member corresponding to the support member. The electric device is screwed to the above-mentioned support through the above.In this construction method, first, the support is fixed, and then the work is temporarily interrupted to install the electric parts. After fixing, it is necessary to restart the work and screw the electric component to the support body, which requires a long time to attach the electric component, resulting in low work efficiency.

A so-called post-installation method has been developed as a solution to the above-mentioned disadvantages of the pre-installation method, and an example thereof is a technique described in Japanese Utility Model Laid-Open No. 50-137594.
This is such that a wall is fixed to a building body, an opening is opened in the wall, a box-shaped support is fitted in the opening, and a stopper piece integrally formed with the support is attached to the wall. Of the movable stopper member disposed on the upper and lower portions of the support body by rotating the stopper bolts rotatably provided on the upper and lower portions of the support body. While facing the back surface of the wall body, each movable stopper member is moved and brought into pressure contact with the back surface of the wall body, thereby fixing the support body to the wall body. Subsequently, electrical parts such as an outlet and a switch are fixed to the support body with fixing bolts.

[0004]

In the above-mentioned conventional retrofitting method, it is necessary to perform the fixing work of the support body and the fixing work of the electric parts separately, which is troublesome and troublesome, and the number of parts is large. However, there is a drawback that the production cost is high.

In view of the above-mentioned conventional problems, the present invention makes it possible to quickly and easily perform the fixing work of the support body and the fixing work of the electric parts at the same time, and the number of parts is small and the manufacturing cost is low. The purpose is to provide a mounting device.

[0006]

In order to achieve the above object, the invention according to claim 1 fits a support into an opening formed in a wall such as a partition wall of a building body, and the support An electrical component wall mounting device in which electrical components such as an outlet and a switch are bolted to the support body, wherein the support body is integrally formed with the main body to be fitted into the opening, A plurality of movable stopper members having a cylindrical shaft and a projecting piece projecting from a base end portion of the cylindrical shaft in a direction orthogonal to the axial direction of the cylindrical shaft; A plurality of movable stopper members are rotatably attached to a support by inserting the tubular shaft into a through hole penetrating the main body at a proper position, and the electric component is fixed to the support. Attach a plurality of bolts to the base end of each tubular shaft. Each movable stopper member is rotated by its screwing force by being screwed into each of the formed screw holes, and the projecting piece is projected outward from the support body to be engaged with the back surface of the wall body. It is characterized by that.

According to a second aspect of the present invention, in the first aspect of the invention, a split groove is formed at the tip of each of the tubular shafts so that the tip of each of the tubular shafts can be reduced in diameter. Further, a collar portion is integrally formed at the tip of each of the cylindrical shafts.

According to a third aspect of the present invention, in the second aspect of the invention, a plurality of protrusions are integrally formed at appropriate positions on the inner peripheral surface of the through hole with a predetermined gap in the circumferential direction, and It is characterized in that a protruding portion having a width slightly smaller than the gap is integrally formed in the collar portion so as to face the gap.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the invention described above, a temporary fixing protrusion is provided at a proper position on the inner peripheral surface of the through hole, and the temporary fixing protrusion rotates the cylindrical shaft fitted in the through hole by a predetermined angle. Due to
It is characterized in that the movable stopper member is temporarily fixed to a predetermined position by being engaged with the split groove so that the projecting piece thereof does not project outward from the main body.

The invention according to claim 4 is the invention according to claims 1, 2, and 3.
Alternatively, in the invention described in 4, the rotation preventing projection is provided in a proper position adjacent to the through hole on the rear surface of the main body, and the movable stopper members are rotated to move the projection piece outward from the support body. It is characterized in that the protruding piece is configured to come into contact with the anti-rotation projection when it is made to protrude.

[0011]

According to the first aspect of the present invention, when the electric component is attached to the wall, the opening is opened in the wall fixed to the building body, and then the main body of the support is fitted into the opening. , The stopper piece is brought into contact with the surface of the wall body, and then the electric component is fitted into the main body, and a plurality of bolts for fixing the electric component to the support body are attached to the main body. It suffices to screw each into the screw hole formed in the cylindrical shaft. As a result, each movable stopper member is rotated by the screwing force, and the projecting piece of each movable stopper member projects outward from the support body and engages with the back surface of the wall body. At the same time as being fixed to the body, the electrical component can be fixed to the wall through the support.

According to the second aspect of the present invention, by forming a split groove in the tip end portion of each of the tubular shafts, the tip end portion of each of the tubular shafts is configured to be capable of being reduced in diameter. A flange is integrally formed at the tip of the shaft. When each tubular shaft is pushed into the through hole of the support, the tip of each tubular shaft is elastically deformed and its diameter is reduced. Since the portion is pressed against the inner peripheral surface of the through hole, each movable stopper member can be easily attached to the support body.

According to the third aspect of the present invention, a plurality of protrusions are integrally formed at a proper position in the inner peripheral surface of the through hole with a predetermined gap in the circumferential direction, and the protrusions are opposed to the gap. Since the protruding portion having a width slightly smaller than the gap is integrally formed in the collar portion, the movable stopper member is supported by pushing the tubular shaft into the through hole in a state where the protruding portion faces the gap. It can be attached to the body at a predetermined inclination angle.

According to the fourth aspect of the present invention, a provisional fixing projection is provided at a proper position on the inner peripheral surface of the through hole, and the provisional fixing projection is cylindrically inserted into the through hole. By rotating the shaft by a predetermined angle, the shaft is engaged with the split groove, whereby the movable stopper member is temporarily fixed at a predetermined position,
Since the projecting piece does not project outward from the main body, the mounting state of the movable stopper member does not change due to vibration during transportation, and the main body fits into the opening of the wall body. In this case, the movable stopper member does not hang down unexpectedly and hinder the fitting.

According to the fifth aspect of the present invention, a rotation preventing projection is provided in a proper position adjacent to the through hole on the rear surface of the main body, and the movable stopper members are rotated to project the protruding piece. Since the projecting piece is configured to contact the anti-rotation protrusion when the projecting piece is projected outward from the support, the projecting piece is prevented from rotating too much, and the projecting piece is prevented from becoming a wall. It can be securely engaged with the back surface of the body.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show that a frame-shaped support body 3 is fitted into an opening 2 formed in a wall body 1 such as a partition wall of a building body, and a plurality of electrical components 4 such as outlets and switches are attached to the support body 3. It shows a state in which the bolts 5 are fastened.

As shown in FIG. 4, the support 3 is an integrally molded product made of synthetic resin and is composed of upper and lower girders 7a and 7b and lateral girders 7c and 7d. A through hole 6 is formed through the bulging portions 7A and 7B integrally formed on the inner surface, and the rectangular main body 7 fitted into the opening 2 and the transverse beam portions 7c and 7d of the main body 7 are integrally formed. A stopper piece 8 that comes into contact with the surface of the wall body 1, a cross beam portion 7c,
7d has an auxiliary stopper piece 9 which is integrally formed in the central portion of the body 7d and extends outwardly toward the rear. The main body 7 and the auxiliary stopper piece 9 are pressed and elastically displaced inside the main body 7. After fitting 7 into the opening 2, the pressing of both auxiliary stopper pieces 9 is released, so that both auxiliary stopper pieces 9 can be pressed against the peripheral edge of the opening 2 by the elastic force peculiar to synthetic resin. This allows the support 3 to be easily locked in the opening 2 (see FIG. 3).
An anti-slip concavo-convex portion 10 is formed on the surface of the auxiliary stopper piece 9 facing the opening.

Movable stopper members 12 are rotatably attached to the upper and lower portions of the support member 3, and the movable stopper members 12 are, as shown in FIG. 5, a cylindrical shaft 12a and the cylindrical shaft 12a. Piece 12b protruding from the base end of the shaft 12a in a direction orthogonal to the axial direction thereof.
The protruding piece 12b has a base end portion 13 integrally formed with the tubular shaft 12a, a central portion 14 extending obliquely upward from the base end portion 13, and a distal end extending horizontally from the central portion 14. And a non-slip groove 16 on the upper surface of the tip portion 15.
And the width H of the distal end portion 15 is formed
The width is set to be wider than the width h of 3 and the side edge portion 17 of the front end portion 15 on the front side in the rotation direction is formed in an arc shape, whereby the front end portion 15 can be easily and securely attached to the back surface of the wall body 1. Can be engaged with.

As shown in FIGS. 5 (a) and 5 (b), a split groove 18 is formed at the tip of the cylindrical shaft 12a so that the tip of the cylindrical shaft 12a can be reduced in diameter. At the same time, a flange portion 19 is provided so as to project at the tip of the cylindrical shaft 12a.
Is formed into a tapered surface 19a having an upper constriction, and when the tip of the cylindrical shaft 12a is pushed into the through hole 6, the tip of the cylindrical shaft 12a is elastically deformed and its diameter is reduced. Since the collar portion 19 is pressed against the inner peripheral surface of the through hole 6 by its elastic force, the movable stopper member 12 can be easily attached to the support body 3 (see FIGS. 1 to 3).

As shown in FIG. 5A, the cylindrical shaft 12
A screw hole 22a is formed on the small diameter side of the base end of the through hole 22 penetrating the center of a. By moving the bolt 5 into the screw hole 22a, the movable stopper member 12 is moved around the cylindrical shaft 12a. It is designed to be rotated.

As shown in FIGS. 6 and 7, the through hole 6 is formed.
A pair of protrusions 24, 24 are integrally formed in the rear end edge of the inner peripheral surface of the inner peripheral surface with predetermined gaps 23, 23 in the circumferential direction. 8), protrusions 25, 25 having a width slightly smaller than the gaps 23, 23 are integrally formed in the collar portion 19, as shown in FIG.
As shown in (a), the protrusions 25, 25 are separated by the gap 2
The movable stopper member 12 can be attached to the support body 3 at a predetermined inclination angle α (30 ° in this embodiment) by pushing the cylindrical shaft 12a into the through hole 6 so as to face the Nos. 3 and 23.

As shown in FIGS. 6 and 7, the through hole 6
A temporary fixing projection 27 is provided at a proper position on the front portion of the inner peripheral surface of the through hole 6 along the axial direction of the through hole 6, and as shown in the phantom line in FIG. After the movable stopper member 12 is attached to the support body 3 at a predetermined inclination angle α by being pushed into 6, the movable stopper member 12 is rotated in the clockwise direction, so that the provisional fixing projection 27 is split. It engages with the groove 18 (see the solid line in FIG. 8B), whereby the protruding piece 12b of the movable stopper member 12 is temporarily fixed so as not to protrude to the outside of the main body 7. Therefore, the mounting state of the movable stopper member 12 does not change due to the vibration during transportation, and when the main body 7 is fitted into the opening 2 of the wall body 1, the movable stopper member 12 unexpectedly hangs down. Does not hinder mating.

As shown in FIG. 4, the upper girder portion 7 of the main body 7
8a and the rear girder portion 7b are provided with protrusions 29 for preventing rotation, which are provided in proper positions adjacent to the through holes 6 on the rear surface of the lower girder portion 7b, and bolts are provided in the screw holes 22a of the cylindrical shaft 12a from the state shown by the solid line in FIG. 5
As shown in FIG. 8 (c), each movable stopper member 12 is rotated in the clockwise direction by screwing in, and the engagement state between the temporary fixing protrusion 27 and the split groove 18 is increased. When released, the protruding piece 12b is protruded outward from the support body 3 and abuts on the rotation preventing projection 29,
It is possible to prevent the protruding piece 12b from rotating too much. In addition, when the bolt 5 is screwed in, the protruding piece 12b is moved to the wall 1
The movable stopper member 12 and stopper piece 8 are pressed against the back surface of the wall body 1 to securely sandwich the wall body 1 and
Can be firmly fixed to the wall body 1 (see FIGS. 1 and 2).
reference). In FIG. 1, reference numeral 31 denotes an exterior frame, which is the exterior frame 3
The screw 33 is screwed into the screw hole 32 formed in the support substrate 4 a of the electric component 4 through the electric component 4 to be attached to the wall body 1 via the electric component 4. In FIG. 4, 34 is a through hole for the bolt 5 which is provided through the support substrate 4a of the electric component 4.

In the above structure, when the electric component 4 is attached to the wall body 1, after the opening 2 is opened in the wall body 1 fixed to the building frame, the movable stopper member 12 is placed at a predetermined position (FIG. 8 (b)). While pressing both auxiliary stopper pieces 9 of the support body 3 attached at the solid line position) to elastically displace the inside of the main body 7, the main body 7 is fitted into the opening 2, and the stopper piece 8 is attached to the surface of the wall body 1. The two auxiliary stopper pieces 9 are brought into contact with each other to release the pressing force. As a result, both auxiliary stopper pieces 9 are elastically pressed against the peripheral edge of the opening 2 and the support 3
Can be locked in the opening 2. Next, the electric component 4 is fitted into the main body 7, and a plurality of bolts 5 are passed through the through holes 34 of the support substrate 4a of the electric component 4 to form the screw holes 22a formed in the cylindrical shaft 12a of each movable stopper member 12. Just screw each into. As a result, each movable stopper member 12 is rotated clockwise by the screwing force, and the protruding piece 12b of each movable stopper member 12 is rotated.
Protrudes outward from the support body 3 and is brought into engagement pressure contact with the back surface of the wall body 1, so that the support body 3 is fixed to the wall body 1 and at the same time, the electrical component 4 is inserted through the support body 3 into the wall body 1 Can be fixed to.

[0025]

According to the first aspect of the present invention, after fitting the main body of the support into the opening of the wall, a plurality of bolts for fixing the electric parts to the support are attached to the main body. By simply screwing each into the screw hole formed in the tubular shaft of each movable stopper member, the support body can be fixed to the wall body, and at the same time, the electric component can be fixed to the wall body through the support body. In comparison, the number of parts is small and the manufacturing cost is low.

According to the second aspect of the present invention, when each tubular shaft is pushed into the through hole of the support, the tip end portion of each tubular shaft is elastically deformed and its diameter is reduced. Since the portion is pressed against the inner peripheral surface of the through hole, each movable stopper member can be easily attached to the support body.

According to the third aspect of the present invention, a plurality of protrusions are integrally formed at predetermined positions in the inner peripheral surface of the through hole with a predetermined gap in the circumferential direction, and the protrusions are opposed to the gap. Since the protruding portion having a width slightly smaller than the gap is integrally formed in the flange portion, by pushing the cylindrical shaft of the movable stopper member into the through hole in a state where the protruding portion faces the gap, The movable stopper member can be attached to the support at a predetermined inclination angle.

According to the fourth aspect of the present invention, the movable stopper member is temporarily fixed at a predetermined position by the temporary fixing protrusion that is provided at a proper position on the inner peripheral surface of the through hole, and the protruding piece thereof is the main body. Since it is configured so that it does not project outward from the inside, the mounting state of the movable stopper member does not change due to vibration during transportation, and when the main body is fitted into the opening of the wall, the movable stopper The member does not hang down unexpectedly and hinder the fitting.

According to the fifth aspect of the present invention, when each movable stopper member is rotated to project the projecting piece outward from the support, the projecting piece hits the rotation preventing projection. By contacting, preventing the protruding piece from rotating too much,
The protruding piece can be reliably engaged with the back surface of the wall body.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a state in which an electric component is attached to a wall body by an electric component wall mounting device according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a horizontal sectional view of the same.

FIG. 4 is an exploded perspective view of the same.

5A is a partially cutaway front view of a movable stopper member used in the apparatus, FIG. 5B is a plan view of the member, and FIG. 5C is a side view of the member.

FIG. 6 is an enlarged plan view of an essential part near a through hole formed in a main body of a support body used in the same device.

FIG. 7 is a view on arrow AA of FIG. 6;

8A is a schematic plan view showing a procedure for attaching the movable stopper member, FIG. 8B is a schematic plan view showing a temporarily fixed state of the movable stopper member, and FIG. 8C is a wall engagement state of the movable stopper member. It is a schematic plan view showing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wall body 2 Opening part 3 Support body 4 Electrical component 5 Bolt 6 Through hole 7 Main body 8 Stopper piece 12 Movable stopper member 12a Cylindrical shaft 12b Projecting piece 18 Split groove 19 Collar part 23 Gap 24 Projecting part 25 Projecting part 27 Temporary Stopping projections 29 Rotation stopping projections

Claims (5)

[Claims] 1. A wall mounting for an electrical component, wherein a support is fitted into an opening formed in a wall such as a partition wall of a building body, and an electrical component such as an outlet or a switch is bolted to the support. In the device, the support body has a main body fitted into the opening, and a stopper piece integrally formed with the main body and abutting against a surface of the wall body, the tubular shaft and the tubular body. The cylindrical shafts of a plurality of movable stopper members each having a projecting piece projecting from a base end portion of the cylindrical shaft in a direction orthogonal to the axial direction of the cylindrical shaft are fitted into through holes formed at appropriate positions of the main body. Thus, the plurality of movable stopper members are rotatably attached to the support body, and the plurality of bolts for fixing the electric component to the support body are provided in the screw holes formed at the base end portions of the tubular shafts. By screwing each,
An electric component wall mounting device characterized in that each movable stopper member is rotated by the screwing force to project the projecting piece outward from the support body and engage with the back surface of the wall body. . 2. A tip portion of each of the tubular shafts is formed with a split groove so that the diameter of the tip of each of the tubular shafts can be reduced, and a collar portion is integrated with the tip of each of the tubular shafts. The electrical component wall mounting device according to claim 1, wherein the electrical component wall mounting device is formed. 3. A plurality of protrusions are integrally formed at appropriate positions on the inner peripheral surface of the through hole with a predetermined gap in the circumferential direction,
The projecting portion, which is slightly smaller than the gap, is integrally formed with the collar portion so as to face the gap.
The electrical component wall mounting device described. 4. A provisional fixing projection is provided at a proper position on the inner peripheral surface of the through hole, and the provisional fixing projection rotates a cylindrical shaft fitted in the through hole by a predetermined angle. The movable stopper member is temporarily fixed to a predetermined position by the engagement with the split groove, and the projecting piece of the movable stopper member does not project outward from the main body. The electrical component wall mounting device according to 2 or 3. 5. An anti-rotation projection is provided at a proper position adjacent to the through hole on the rear surface of the main body, and the movable stopper members are rotated to project the projecting piece from the support body to the outside. The electrical component wall-mounting device according to claim 1, 2, 3 or 4, wherein the protruding piece is configured to come into contact with the anti-rotation protrusion when being made to move.