JPH0591621A - Plug socket for floor - Google Patents

Abstract

PURPOSE:To provide a floor plug socket whose main body can be taken in and out without rotation. CONSTITUTION:This device has a cylinder-shaped case 1 to be buried in a floor hole, a locking device 2 having a locking piece 27 which is installed on the upper end of the case 1 and which can move toward the center in the radius direction of the case 1 and an operating section 28 to operate the locking piece 27. It also has a device having on its outer side face a first fitting recessed section 37 with which the locking piece 27 can be fit in when the device is inserted into the case 1 movably in the axis direction and is projecting from the case 1. And, it has a main body of a plug socket 3 having on its outer side face a second fitting recessed section 38 with which the locking piece 27 can be fit in when the main body is stored in the case 1 and a spring 4 which is located between the main body 3 and the bottom 12 of the case 1 in the case 1 and energizes the main body 3 so that the main body may project from the case 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor outlet which is stored in a floor when it is not used and projects on the floor when it is used.

[0002]

2. Description of the Related Art A conventional example (for example, JP-B-49-25036) is shown in FIGS. In other words, this floor outlet is a tubular shape that is embedded in a floor hole, and has an axial guide groove 70 on its inner surface and a pair of stopper recesses 71 and 7 continuous with the guide groove 70.
2 and a locking projection 74 that is guided by the guide groove 70 and engages with one of the stopper recesses 71 and 72.
Outlet main body 75, which is inserted in the case 73 so as to be movable in the axial direction, and the outlet main body 7 in the case 73.
5 and a bottom portion 76 of the case 73, and a spring 77 for biasing the outlet main body 75 in a direction projecting from the case 73. 78 is a lead wire, 85 is a floor, 8
6 is a box cover, and 87 is a box.

[0003]

However, in this conventional example, when the outlet main body 75 is taken in and out, it is necessary to rotate the outlet main body 75. Therefore, the lead wire 78 that is pulled out from the outlet main body 75 and wired under the floor and its Rotational motion is transmitted to the connection portion with the outlet main body 75, which may lead to a connection failure or disconnection of the lead wire 78, leading to a serious electric accident.

Therefore, an object of the present invention is to provide a floor outlet in which the outlet main body can be taken in and out without rotating.

[0005]

The floor outlet of the present invention is a cylindrical case embedded in a floor hole, and is attached to the upper end of the case and is movable back and forth in the radial center direction of the case. Locking means having a lock piece and an operating portion for operating the lock piece, and a first engagement member that is axially movably inserted into the case and can lock the lock piece at a position protruding from the case. An outlet main body having a stop recess on the peripheral side surface and a second locking recess on the peripheral side surface for locking the lock piece at a position housed in the case, and the outlet main body and the case in the case. And a spring interposed between the outlet main body and the bottom portion to urge the outlet main body in a direction projecting from the case.

[0006]

According to the structure of the present invention, when the operating portion is operated while the outlet body is housed in the case and the lock piece is retracted and released from the second locking recess, the outlet body is operated by the action of the spring. As it protrudes further and appears on the floor,
When the lock piece is locked in the first locking recess, it is held in that state. Further, when the lock piece is disengaged from the first locking recess by operating the operation portion and the outlet main body is pushed into the case against the spring, and the lock piece is locked in the second locking recess, it is held in the housed state. It In this way, since the outlet body does not rotate as the outlet body moves in and out, rotational movement is not transmitted to the lead wires connected to the outlet body, and thus lead wire connection failure or disconnection occurs. Can be prevented, the danger of electric accidents can be avoided, and safety can be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. That is, this floor outlet is case 1
The lock means 2, the outlet main body 3, and the spring 4. The case 1 has a tubular shape embedded in a floor hole (not shown). In the embodiment, the cylindrical portion 11 fitted in the floor hole
And a collar 8 provided on the upper end of the tubular portion 11 and placed on the surface of the floor. The collar 8 is provided with a fixing screw 9 and is fixed to the floor by the fixing screw 9. The bottom portion 12 of the tubular portion 11 has a substantially disc shape having the lead wire insertion portion 5 in the center, and the tubular portion 1
It is fixed to the lower end portion of 1 by a bottom plate fixing screw 10. Further, the terminal block 15 is fixed to the terminal block 15 through the lead wire insertion section 5 of the bottom section 12 by penetrating the terminal block 15 and projecting to the side of the terminal block 15.
It is fixed at 6. Further, as shown in FIG. 6, the cover 14 of the box 13 under the floor is fitted to the tubular portion 11.

The locking means 2 has a lock piece 27 which is attached to the upper end of the case 1 and is movable back and forth in the radial center direction of the case 1, and also has an operating portion 28 for operating the lock piece 27. In the embodiment, as shown in FIG. 2, a recess 30 is formed on the upper surface of the collar 8 and a through hole 31 is formed on the bottom surface of the recess 30.
The lock piece 27 is slidably supported on the support plate 33 attached to the lower surface of the brim 8 by the support plate fixing screw 32, and the operation portion 28 such as a lever is slidably arranged in the recess 30. Then, the lock piece 27 is fixed to the operating portion 28 with the lock piece fixing screw 34 through the through hole 31, and the spring member 35 is further provided in the through hole 31 between the lock piece fixing screw 34 and the edge portion of the through hole 31. The lock piece 27 with the cylinder portion 11 interposed.
Is urged toward the center of the radial direction. Therefore, the operation unit 2
When 8 is pulled, the lock piece 27 retreats outward in the radial direction of the tubular portion 11, and when the operating portion 28 is released, the lock piece 27 advances toward the radial center.

The outlet main body 3 has a first locking recess 37, which is inserted into the case 1 movably in the axial direction and is capable of locking the lock piece 27 at a position protruding from the case 1, and the case 1 Lock piece 27 in the position stored in
Has a second locking recess 38 that can be locked on the peripheral side surface. The outlet main body 3 of the embodiment has a bottom portion 21 in which the lead wire insertion portion 20 is formed and a main body portion 23 having a pair of side wall portions 22 forming a first locking recess 37 and a second locking recess 38.
And the lead wire 6 inserted between the side wall portions 22 of the main body portion 23.
Is attached to the lower end surface and has a plug insertion port 50 on the side surface, and is attached to the upper surface of the side wall portion 22 by a cover fixing screw 25 to press and fix the outlet portion 24 and engage with the inner peripheral edge of the collar 8. It comprises a cover 26 that can be stopped. The lead wire 6 is connected between the outlet 24 and the terminal block 15, and the terminal block 1
It is wired in the box 13 from 5. In addition, when the outlet main body 3 is in the maximum protruding state from the case 1, the bottom portion 2
The edge portion 1 is locked to the inner peripheral edge of the brim 8 and is prevented from being pulled out.
The peripheral edge of 6 is locked, but at these positions, the lock piece 27 can be engaged with the first locking recess 37 or the locking recess 38 of the base 2.

The spring 4 is provided in the case 1 within the outlet body 3
And the bottom portion 12 of the case 1 are urged in the direction in which the outlet main body 3 projects from the case 1. The embodiment is a compression coil spring, the lower end of which is fitted into and supported by the terminal block 15, and the upper end of which is engaged with the recess 21a on the lower surface of the bottom 21 of the main body 23 as shown in FIG. According to this embodiment, the operating portion 28 is operated to retract the lock piece 27 while the outlet main body 3 is housed in the case 1, and
When it is disengaged from the locking recess 38, the outlet main body 3 projects from the case 1 and comes out on the floor by the action of the spring 4, and when the operating part 28 is released, the lock piece 27 moves into the first locking recess 37 by the action of the spring member 35. It is locked and the outlet main body 3 is held in a protruding state. Further, the operating portion 28 is operated to disengage the lock piece 27 from the first locking concave portion 37, and the outlet main body 3
Is pushed into the case 1 against the spring 4, the spring member 3
By the action of 5, the lock piece 27 is locked in the second locking recess 38 and is held in the housed state. In this way, the outlet body 3
Since the outlet main body 3 does not rotate in association with the withdrawal operation of the plug, the rotational motion is not transmitted to the lead wire 6 connected to the outlet main body 3, and therefore the lead wire 6
It is possible to prevent the connection failure and disconnection of the battery from occurring, avoid the danger of electric accident, and improve the safety.

Although the cover 26 is a disc, it may be a prism.

[0012]

According to the floor outlet of the present invention, when the outlet body is housed in the case, the operating portion is operated to retract the lock piece and disengage it from the second locking recess, so that the outlet body is acted by the spring. Protrudes from the case and goes out onto the floor, and when the lock piece is locked in the first locking recess, it is held in that state, and the operating portion is operated to move the lock piece to the first position.
The socket body is pushed into the case against the spring against the spring, and the lock piece is locked in the second locking recess so that it is held in the housed state. Since the main body of the outlet does not rotate, the rotational movement is not transmitted to the lead wire connected to the main body of the outlet, and therefore it is possible to prevent the connection failure or disconnection of the lead wire, which may cause an electrical accident. There is an effect that it is possible to avoid and to improve safety.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view of locking means.

FIG. 3 is a side view showing a state where the outlet main body is stored.

FIG. 4 is a plan view thereof.

FIG. 5 is a front view showing, in phantom lines, a state in which the outlet body is projected.

FIG. 6 is an exploded perspective view of a case in which the case is separated from the box.

FIG. 7 is a sectional view of a conventional example.

FIG. 8 is a partial cross-sectional view of the outlet main body in a protruding state.

FIG. 9 is a cutaway perspective view of a case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Locking means 3 Outlet main body 4 Spring 12 Bottom part 27 Lock piece 28 Operating part 37 First locking concave part 38 Second locking concave part

Claims (1)

[Claims] 1. A cylindrical case embedded in a floor hole, a lock piece attached to an upper end of the case and movable in the radial center direction of the case, and an operation for operating the lock piece. A locking means having a portion, and a first locking recess, which is axially movably inserted into the case and can lock the locking piece at a position projecting from the case, on the peripheral side surface and is housed in the case. The outlet main body having a second locking recess on the peripheral side surface capable of locking the lock piece at a fixed position, and the outlet main body interposed between the outlet main body and the bottom of the case in the case. A floor outlet provided with a spring that biases the case in a protruding direction.