JP3112291B2 - Outlet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outlet used in a floor wiring system on a free access floor provided with a wiring space for routing a power supply line between an underfloor slab and the floor.

[0002]

2. Description of the Related Art In recent tenant buildings and the like, a wiring space is provided between a slab under a floor and a floor to route a power supply line, so that a floor wiring can be freely performed according to a layout in a room. Some are on the access floor. By the way, this type of floor wiring system on a free access floor uses an outlet that is embedded in the floor and used.

[0003]

However, since the housing of this type of conventional outlet is of a die-cast type, there is a problem that the cost is high.
In addition, there is a problem that such a die-cast type outlet is heavy, so that the installation work is troublesome.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide an inexpensive and lightweight outlet.

[0005]

According to the present invention, in order to achieve the above object, an embedding hole formed in a bottomed cylindrical shape and opened in a floor is provided.
And the lower part is inserted into the
A synthetic resin cover with an outer flange
Outlet body with a plug insertion surface on the
A synthetic resin plate with the upper end of
A support bracket that receives and supports the lower end of the outlet main body, and a support
A reinforcing plate to which the upper end of the metal fitting is fixed and which reinforces the plate
Rate and the cover is supported by the lower part of the outlet body
The bottom has an opening for inserting the lower part of the bracket, and the plate and
The reinforcing plate is in the form of being superimposed around the opening
It is characterized by being integrated with the cover .

[0006] In order to prevent dust or the like from being attached when not in use, a door may be provided to close the portion of the plate where the plug insertion surface of the outlet body is exposed when not in use.

[0007]

The present invention has the above-described structure,
Most of the members are formed of a synthetic resin so that the cost can be reduced and the weight can be reduced.

[0008]

1 to 6 show an embodiment of the present invention. First, a floor wiring system to which the present invention is applied will be briefly described. This floor wiring system, as shown in FIG.
A harness plug B was attached to a tip of a wiring device H such as a joiner A disposed under the floor of the free access floor F, an outlet C buried in the floor, and an outlet buried in the floor and disposed on the floor. a demarcation box D draw the power cord to the floor, in which by using a conventional joint box I for splitting the main line L ₀ has to be able to perform the floor wiring freely.

As shown in FIG. 1, the outlet C of this embodiment includes a cylindrical body 2, a bottomed cylindrical cover 3 attached to the upper part of the body 2 and having an open top surface, A plate 4 attached to the opening, a back cover 5 attached to the lower surface opening of the body 2, and a decorative plate 6 attached to the plate 4 are provided as main components. Each of the above members is formed of, for example, a synthetic resin such as plastic, thereby reducing cost and weight.

As shown in FIG. 4, the cover 3 has an outer flange 3a which is engaged with the opening edge of the embedding hole 21 formed in the floor 20 around the opening edge. A rectangular opening 3b is formed in the bottom plate of the cover 3 so as to be deflected toward the inner peripheral surface side, and a lower portion of the outlet main body 1 is inserted into the opening 3b and a door 1 described later is formed.
It is used as a space in which 0 fits. Then, a pair of bosses 3c are formed on the peripheral surface corresponding to both sides of the opening 3b.
A screw 11 for mounting the mounting bracket 12 is attached to the insertion hole 3f in which c is formed.

The outlet C of the present embodiment has the outlet main body 1 attached to the plate 4 as a main body.
The plate 4 is formed so as to have an outer shape in which a space for accommodating the door 10 is cut out and fit into the cover 3, and has a rectangular opening 4 a in the center above the outlet main body 1 into which a rectangular box-shaped bulging portion fits. I have. The outlet main body 1 has a module size of one standardized ready-made buried wiring device, and a detailed description thereof will be omitted, but a mounting frame used when the wiring device is buried in a wall surface or the like. It has a structure to be fitted and attached to. Therefore, in the case of this embodiment, the same fitting structure as the above-mentioned mounting frame is provided on the plate 4, and the outlet main body 1 is detachably attached to the plate 4 by a snap method.

The decorative plate 6 is also formed so as to substantially coincide with the plate 4. However, this decorative plate 6
The side of the door 10 facing the storage space is extended to the storage space side of the plate 4 so that the door 10 does not come off. In the decorative plate 6, an opening 6a for exposing the blade insertion surface of the outlet main body 1 is formed at the center, and insertion holes 6b are formed on both sides of the opening 6a.
The decorative plate 6 is recessed from the space for accommodating the door 10 to the periphery of the opening 6a, and when the door 10 is pulled out of the storage space and attached on the decorative plate 6, the door 10 is accommodated in the concave portion 6c. It is. A pair of locking claw pieces 6d shown in FIG. 4 are formed from the lower surface of the decorative plate 6, and the locking claw pieces 6d are engaged with locking holes 3d and locking recesses 3e formed in the plate 4. It can be stopped and temporarily fixed.

By the way, in the case of this type of outlet C which is buried in the floor, it is necessary to adopt a structure which can withstand pressing from the front side. Therefore, in the present embodiment, a support fitting 9 and a reinforcing plate 8 are provided. The support bracket 9 has a substantially U-shape and both ends are bent outward to form a fixing piece 9a. The reinforcing plate 8 is formed in a substantially U-shape in which the outer shape is accommodated in the cover 3 and the outlet body 1 is passed inside. It is.

The door 10 is made of a plastic door cover 10.
a and a metal plate 10 for reinforcing the door cover 10a.
b, and is adhered to the decorative plate 6, so that the door cover 10a faces upward and is color-matched to the decorative plate 6. Here, a knob piece 10c for pulling out the door 10 is formed at the upper end of the door cover 10a, and is sandwiched between the edge of the decorative plate 6 and the cover 3 at the lower end edge. Shaft part 1 which becomes a rotation viewpoint when housed in recess 6c
0d is formed. Here, when the shaft portion 10d of the door 10 is pulled out of the storage space as shown in FIG. 5, the shaft portion 10d is locked by the decorative plate 6, thereby preventing the door 10 from falling off. When it is tilted so as to be placed on the shaft, it rotates around the shaft portion 10d and fits in the concave portion 6c of the decorative plate 6.

The body 2 is formed in a substantially cylindrical shape as a whole, has a rectangular tubular portion in the center, and accommodates a portion projecting from the opening 3b of the cover 3 of the outlet main body 1 in this tubular portion. In the portion corresponding to the storage space of the door 10 on the side of the cover 3, two vertically running partition walls 2 e are formed, and the space separated by the partition walls 2 e is stored in the storage portion 2 f of the door 10.
There is. A mounting portion 2b for mounting a mounting bracket is formed on both sides of the rectangular cylindrical portion. The body 2 is attached to the lower surface of the cover 3 by screwing with mounting screws 15.

The mounting bracket 12 has a substantially U-shaped cross section which opens upward, has a screw hole 12a for screwing the screw 11 at one end, and a tooth portion 12b meshing with the lower surface of the floor at the other end of the side wall. It is. The mounting portion 2b of the body 2 to which the mounting bracket 12 is attached is formed by two vertically running partition walls, and the width of the partition wall is formed to a width in which the mounting bracket 12 fits. The side piece 2c is protruded. The side piece 2c is formed with an insertion hole 2i through which the screw 11 for mounting the mounting bracket 12 is inserted.

The mounting bracket 12 is provided with a boss 3c of the cover 3.
The screw 11 inserted through the insertion hole 3f is passed through the screw hole 12a and the insertion hole 2i of the side piece 2c.
The E-ring 13 is caulked to the tip of the screw 11 protruding on the opposite side of the side piece 2c to prevent the screw 11 from coming off, and is attached to the attachment portion 2b. In this state, the screw 11 is freely rotatable. When the screw 11 is rotated, the screw 11 screws into the screw hole 12a of the mounting bracket 12 sandwiched by the partition wall of the mounting portion 2b. Or it is designed to move downward. One side wall of the lowermost end of the mounting portion 2a is notched, and the screw 11 is rotated in a direction for moving the mounting bracket 12 downward, and when the mounting bracket 12 comes to the above-described notch 2d position, it passes through the notch 2d. The mounting bracket 12 rotates to the lower surface side of the body 2 and fits in such a manner that the mounting bracket 12 does not protrude laterally from the body 2d. In this state, a contact portion with which the mounting bracket 12 comes into contact is formed on the body 2 so that rotation of the mounting bracket 12 is stopped.

The back cover 5 has a substantially rectangular parallelepiped box shape with an upper opening, and is attached to the lower surface of the cylindrical portion 2a of the body 2. A pair of locking pieces 5a are formed from the upper end surface of one end wall of the back cover 5, and a concave portion 5b is formed on the other end wall.
The end wall 2g of the body 2 fits into the recess 5b. An insertion hole 5d for screwing the back cover 5 to the end wall 2g of the body 2 with a screw 16 is formed on both sides of the bottom surface of the recess 5b. A concave groove 5c that forms the electric wire outlet 18 together with the groove 2h is formed. That is, the back cover 5 is fixed at one end to the body 2 and screwed at the other end.
The back cover 5 functions as a partition between the floor slab portion of the system floor and the outlet C.

The assembly of the above-described members is performed as follows.
First, the outlet main body 1 is attached to the plate 4, and in this state, the reinforcing plate 8, the support fitting 9, and the plate 4 to which the outlet main body 1 is attached are placed on the bottom surface of the cover 3. By screwing the fixing screw 14 into the screw hole 4b of the plate 4 through 8a, the above members are fixed integrally. Then, the body 2 is screwed to the lower surface side of the cover 3 with mounting screws 15, and
Attach the mounting bracket 12 by 1, insert the door 10 into the storage section formed from the cover 3 to the body 2, temporarily fix the decorative plate 6 on the plate 4, and in this state, attach each member from the upper surface of the decorative plate 6 to each member. The formed insertion hole 6b,
Fixing screw 17 is screwed into screw hole 3e through 4c , 9b, 8b, and decorative plate 6 is attached. Finally, when the back cover 5 is attached to the lower surface of the body 2, the assembly is completed.

A method of attaching the outlet C to the floor using the fitting 12 will be described. First, when inserting the outlet C into the embedding hole 21 formed in the floor 20,
The mounting bracket 12 is inserted into the lower surface of the body 2 through the notch 2d. Then, the screw 11 is rotated. When the mounting bracket 12 projects to the side, the mounting bracket 12 is attached to the mounting portion 2a.
The rotation of the screw 1 is stopped by contacting the other side wall of the screw 1.
When the first bracket 1 is rotated, the mounting bracket 12 moves upward accordingly. Accordingly, when the screw 11 is rotated until the mounting bracket 12 abuts on the lower surface of the floor and the teeth 12b mesh with the floor,
Outlet C is fixed to floor 20.

[0021]

As described above, the present invention is formed in a cylindrical shape with a bottom.
The lower part is inserted into the embedded hole opened in the floor and the embedded hole
Synthetic tree with an outer collar around the upper edge that locks to the floor around
Fat cover and outlet with plug insertion surface on top
Tree attached to the main body and the upper end of the outlet body
Support by receiving a fat plate and the lower end of the outlet body
And the upper end of the support bracket are fixed and pressed.
And a reinforcing plate to reinforce the
The bottom of the opening for inserting the lower part of the
Surface, the plate and the reinforcing plate are around the opening
Since it is integrated with the cover in the form of being superimposed on
Most parts are made of synthetic resin, which can reduce cost and weight , and
Acts downward on outlet body when plug is inserted into body
Receiving pressure not only on the plate but also on the support bracket,
Since the force received by the support bracket is distributed to the reinforcing plate,
Although the bars and plates are made of synthetic resin,
Withstands pressure acting when plug is inserted into the outlet
Can be Further, in the invention of claim 2, since the door for closing the portion where the plug insertion surface of the outlet body of the plate is exposed when not in use is provided, dust and the like may adhere to the plug insertion surface when the outlet is not in use. Can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of one embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a perspective plan view of the same.

FIG. 4 is a side sectional view of the same.

FIG. 5 is a front sectional view of the same.

FIG. 6 is a system configuration diagram of a floor wiring system using the above.

[Explanation of symbols]

 C Outlet 1 Outlet body 2 Body 3 Cover 4 Plate 8 Reinforcement plate 9 Support bracket 10 Door

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-103113 (JP, A) JP-A-1-136512 (JP, A) JP-A 48-79292 (JP, U) JP-A 55- 52748 (JP, Y2) Jiko 46-16203 (JP, Y1)

Claims (2)

(57) [Claims] 1. An embedding hole formed in a bottomed cylindrical shape and opened in a floor.
The lower part is inserted and locks on the floor around the embedding hole
A cover made of synthetic resin with an outer collar around the upper edge,
Outlet body with plug insertion surface and outlet book
A plastic plate with the upper end of the body attached
A support bracket that receives and supports the lower end of the cent body,
A reinforcing plate that fixes the upper end of the fixture and reinforces the plate
With a cover and the lower part of the outlet body and support
The bottom is provided with an opening for inserting the lower part of the
A strong plate is a
An outlet characterized by being integrated with a bar . 2. The outlet according to claim 1, further comprising a door for closing a portion of the plate where the plug insertion surface of the outlet body is exposed when not in use.