JP2742475B2 - Lock structure of floor plate of inner outlet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure for a floor plate of an inner outlet which is attached to an opening provided in a floor material.

[0002]

2. Description of the Related Art Conventionally, an inner outlet is a window through which an electric wire laid under the floor is accessed to an end of an electric device installed on the floor. The floor plate, which is the lid of the inner outlet, is opened, and the wiring is not performed inside. Aesthetically, it is required that it be in harmony with the surrounding carpet. Therefore, it is necessary to provide a lock mechanism to prevent the floor plate from opening and closing unintentionally during walking or the like. For this reason, there is a type in which the projection provided on the plate frame is locked in a groove provided on the floor plate to lock the floor plate. 6 and 7, a push button 30 is provided on the plate frame 1, and when the push button 30 is depressed, the lock of the floor plate 2 is released. That is, in the plate frame 1, the lock piece 31 is pressed by pressing the push button 30 below.
And a return spring 32 for returning the push button 30 and projecting the lock piece 31.
And the cover 33 constitute a part for locking and releasing the lock. The lock of the floor plate 2 is in a locked state when the lock piece 31 is locked in the groove 7 of the floor plate 2, and a vertical force for pressing the push button 30 by pressing the push button 30. Is converted into a force to slide the lock piece 31 backward, so that the lock piece 31 retreats and the lock is released. Here, when a load is not applied to the push button 30, the force of pushing up the push button 30 is exerted by the spring force of the return spring 32, so that the lock piece 31 is locked in the groove and remains locked. ing.

[0003]

However, in the above-mentioned conventional example, it is necessary to provide a complicated retreat mechanism for releasing the lock in a narrow portion, and the lock and the release of the lock are required. Since the operation is performed by the spring force of the spring, there is a problem that the durability of the lock is reduced due to the life of the spring. For this reason, the present applicant has previously filed Japanese Utility Model Application No. 2-401545. As shown in FIGS. 8 to 10, the locking is performed by locking the locking claws 34 of the wire cover 4 into the locking holes 35 of the plate frame 1 as shown in FIGS. At the time of use in which the wire cover 4 is attached in an inclined state to enable the passage of a wire, the wire is locked as shown in FIG. 10, and the wire is carried out by attaching the wire cover 4 in a horizontal state. When not in use, it is held as shown in FIG. In other words, the cover 4 for the wire is
Horizontal or inclined with respect to the notch 3 provided at the end
Can be installed in any of the inclined states
ing. The opening 4 of the notch 3 has a
A lid plate 4b formed substantially identically, and an oblique surface from the lower surface of the lid plate 4b.
And a leg 4a projecting downward.
A through hole 19 is formed between the tip of the leg 4a and the cover plate 4b.
This through hole 19 is used for a wire for passing an electric wire.
It has an opening. Groove portions 20 are provided on the side surfaces of both leg pieces 4a.
a, 21a are provided, and the groove portions 20a, 21a are provided.
a, it is detachably engaged with the holding pieces 22 of the both protruding portions 2a.
A first locking portion 20 and a second locking portion 21 are provided.
You. And it is formed by the groove portion 20a which is inclined obliquely.
Notch by locking the first locking portion 20 to the holding piece 22.
It can be installed in a state inclined to the
As shown in FIG.
For connecting to the inner outlet with the
It can be attached to the notch 3 in the case of use
Swelling. In addition, the mounting direction of the cover 4
Conversely, the second locking portion 21 formed by the groove portion 21a is
By placing on the holding piece 22, the notch 3 is horizontal.
The mounting can be done in a state, as shown in FIG.
When the cable is not connected to the inner outlet
It is necessary to attach to the notch 3 when not in use.
And can be.

However, since the cover 4 for the wire and the plate frame 1 are each made of synthetic resin, precise dimensions cannot be obtained due to the characteristics of the synthetic resin, so that the locking claws 34 are inserted into the locking holes 35. There has been a problem that locking performed by locking is likely to be uncertain. Also, floor plate 2
In order to smoothly open and close the door, it is necessary to provide a constant clearance L between the wire cover 4 and the plate frame 1 as shown in FIG. It is difficult to fix the lock, and the locking claw 34 of the wire cover 4 may not be caught in the locking hole 35 of the plate frame 1, which causes a problem that the locking becomes uncertain. Further, in the state of non-connection shown in FIG. 11, the connection lid 4 is simply inserted into the floor plate 2, and the floor plate 2 is in a locked state. Therefore, there is a problem that the floor plate 2 rattles or opens due to vibration during walking or the like.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem, and the connection lid and the floor plate can be mounted on a plate frame regardless of whether the connection lid is used or not. An object of the present invention is to provide a lock structure of a floor plate of an inner outlet which can be securely locked.

[0006]

In the present invention SUMMARY OF], in order to achieve the above object, and pivotally at one end to the end of the plate frame 1 is disposed a rotatably floor plate 2, the floor play
The notch 3 is provided at the other end of the
Engagement locks provided with an arm piece 5 for holding the wire-passing lid unit 4 in either the horizontal state or inclined state, the lock plate and can project laterally from the arm piece 5 in at least one of Ryoudehen 5 6 are provided rotatably, and the locking plates 6 are respectively provided on the leg pieces 4 a of the wire cover 4 opposed to the arm pieces 5 and the side faces of the plate frame 1.
Are provided with locking holes 7, 7 for detachably locking the ends.

[0007]

When the wire cover 4 is not in use, the lock plate 6 is rotated to move the end of the lock plate 6 to the leg 4a of the wire cover 4 and the plate. Locking is performed by locking in a locking hole 7 provided in the frame 1.
The lock plate 6 securely locks the floor plate 2, the plate frame 1, and the wire cover 4. When the wire cover 4 is in use, the lock plate is used. The lock is performed by rotating the lock plate 6 to lock the end of the lock plate 6 in a lock hole 7 provided in the plate frame 1. The held floor plate 2 and plate frame 1 are securely locked. That is, the rotation of the lock plate 6 causes the plate frame 1
Locking and unlocking the floor plate 2
In both cases, lock and release of the lid 4 for the wire and the plate frame 1
Can be removed, plate frame 1, floor play
Locking and unlocking of the three members of the gate 2 and the cover 4 for the wire
, The structure can be simplified, and the lock plate 6
Is a rotating configuration that does not use a spring.
Compared to a lock configuration in which the function deteriorates over time such as a spring,
Lock function can be stabilized, and the lock
Etc. can be prevented from being released, and the lock function is provided for a long time.
Can be maintained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. Wiring is provided under the floor of a floor called a floating floor which is disposed on a floor base such as a slab with a wiring gap like a floor of an access floor, and is wired under this floor. An inner outlet is provided as a window for accessing the terminal of the electric device on the floor with the electric wire.
The floor is formed by arranging a large number of blocked flooring materials 8 vertically and horizontally, and a carpet 9 is laid on the flooring material 8 as shown in FIG. Flooring 8
Is made of synthetic resin or metal, and is installed on the floor such that the legs (not shown) are placed on a floor base such as a building slab. The floor material 8 is provided with an opening 8a for attaching an inner outlet, and the inner outlet is attached to the opening 8a for attaching an inner outlet. The inner outlet includes a receiving box-shaped box 10 as shown in FIG. 4, a plate frame 1 attached to an upper opening of the box 10, and a floor plate 2. As shown in FIG. 3, the floor plate 2 is rotatably arranged with one end pivotally attached to an end in the plate frame 1.
A notch 3 is provided at the other end of the floor plate 2. At the end of the floor plate 2 provided with the notch 3, a decorative plate 11 having a U-shape in plan view is mounted, and a floor protruding from both sides of the decorative plate 11 and the notch 3. An arm piece 5 is formed by the projecting portion 2a of the plate 2. At least one of the two arm pieces 5, that is, at least one of the protrusions 2a is provided with a concave portion 12 that is concavely concave.
Can be attached. The lock plate 6 is rotatable in a state where it is prevented from being detached by being mounted on a rotation shaft 13 protruding from the bottom of the concave portion 12, and is provided with a lock button 14 fixed integrally to the lock plate 6. It can be rotated. The lock button 14 is arranged in a through hole 11a provided in the decorative board 11, and in the arrangement state, the upper surface is arranged so as to be flush with the upper surface of the decorative board 11, as shown in FIG. It is supposed to be. By rotating the lock plate 6 housed and disposed in the concave portion 12, the end portion can protrude laterally from both side surfaces of the arm piece 5. That is, the length A of the lock plate 6 is shorter than the length D of the recess 12 and longer than the width C of the recess 12. The width B of the lock plate 6 is shorter than the width C of the recess 12. In the illustrated embodiment, the case where the lock plate 6 is rectangular is shown. However, the present invention is not limited to this case.
It may be shaped like an oval as long as it protrudes laterally from both side surfaces of. The notch 3 has a cover 4
Can be detachably attached, and the cover 4 for a wire can be attached to the notch 3 in either a horizontal state or an inclined state. The cover 4 for a wire is composed of a cover plate 4b formed substantially in the same shape as the opening of the notch 3, and a leg 4a projecting obliquely downward from the lower surface of the cover 4b. 4
A through-hole 19 is formed between the tip of a and the cover plate 4b, and this through-hole 19 is a through-hole for passing an electric wire. Groove portions 20a, 21a are provided on the side surfaces of the two leg pieces 4a, and the first locking portion 20 and the first locking portion 20 are detachably locked to the holding pieces 22 of the both protruding portions 2a at the groove portions 20a, 21a. Two locking portions 21 are provided. The first locking portion 2 formed by the obliquely groove portion 20a
1 can be attached to the notch 3 in a state of being inclined by locking the holding piece 22 to the holding piece 22. As shown in FIG. It can be attached to the notch 3 in a state of use when conducting a wire to the inner outlet as a closed state. In addition, by mounting the second locking portion 21 formed by the groove portion 21 a on the holding piece 22 with the mounting direction of the wire cover 4 reversed, the horizontal mounting is performed on the notch 3. 1a or 1b, and can be attached to the notch 3 in a flat non-use state when no wiring is performed to the inner outlet as shown in FIG. 1 (a) or (b). It has become. The lid 4 for the wire is attached to the floor plate 2 in a non-use state, and the leg 4a of the lid 4 for the wire and the plate frame 1 are opposed to the arm piece 5 with the floor plate 2 closed. Lock holes 7 are provided on the side surfaces of the lock plate 6 so that the ends of the lock plates 6 are detachably locked. For mounting the inner outlet to the flooring 8, various conventionally known mounting means can be adopted. For example, as shown in FIG. 5, the inner outlet box 10 is inserted into the inner outlet mounting opening 8 a and the box is inserted. The outer flange 10a provided in the opening 10 is placed on the upper surface of the floor 8 around the inner outlet mounting opening 8a, and the mounting bracket 15 provided on the outer surface of the box 10 is attached to the lower surface of the floor 8 To the mounting bracket 15
The inner outlet is attached by sandwiching the floor material 8 with the outer flange portion 10a. Box 10
Inside, an electric component 18 such as a power outlet and a telephone modular jack is installed by an instrument plate 17.

The lock plate 6 is rotated by operating the lock button 14 with a tool such as a screwdriver or a coin from the state shown in FIG. 1B as shown in FIG. 1A. 6 protrudes laterally from the recess 12 and the ends of the lock plate 6 protrude laterally in this manner, so that the ends of the lock plate 6 become legs of the plate frame 1 and the cover 4 for the wire. The floor plate 2 and the wire cover 4 are locked by being locked by the locking holes 7 provided in the piece 4a. When releasing the lock, the lock button 6 is rotated by operating the lock button 14 so that the end of the lock plate 6 is disengaged from each locking hole 7, and the end of the lock plate 6 is In this state, the lock is released by opening the floor plate 2 to carry out the wiring work or to mount the electric component 18 in the box 10. Here, a groove 14a on which a tool such as a screwdriver or a coin can be hooked is provided on the upper surface of the lock button 14 which is integrally fixed to the lock plate 6.
The lock plate 6 is attached such that the length direction of the lock plate 4a coincides with the length direction of the lock plate 6, and the groove 14a is turned from the vertical direction to the horizontal direction shown in FIG. The end of the plate 6 is locked in the locking hole 7, so that the locked state by the lock plate 6 can be easily recognized by the direction of the groove 14a that rotates together with the lock button 14.

[0010] As shown in FIG. 1C, when the wire cover is in use, that is, when the wire cover is held on the floor plate in an inclined state. When the lock plate is rotated, the end of the lock plate is locked in the locking hole of the plate frame to lock the floor plate and the plate frame. The floor plate rattles to vibration during walking,
It doesn't open.

By rotating the lock button 14 in this manner, the end of the lock plate 6 integrated with the lock button 14 is engaged with the locking hole 7 of the plate frame 1 and the leg 4a of the wire cover 4. The floor plate 2 is securely locked by being stopped, the floor plate 2 does not open unintentionally due to vibration or the like, and the floor plate together with the wiring cover 4 is lifted by the lifting of the passing electric wire. 2
Can be prevented from floating. In addition, the lock button 14 can be rotated by hooking a tool such as a screwdriver or a familiar object such as a coin or a steel rule into the groove 14a, and can be easily rotated without requiring a special tool or the like. Can be manipulated. As the structure of the lock does not use a coil-shaped return spring or the like that changes over time as in the past, the performance of parts, that is, the performance of the lock structure, is significantly reduced due to aging. In this case, the life of the lock portion is prolonged, and the durability is improved.

[0012]

As described above, according to the present invention, a floor plate is rotatably mounted by pivotally attaching one end to an end in a plate frame, and a notch is provided at the other end of the floor plate. the arm piece for holding in one of the engagement locks by passing wire lid on both sides horizontally or inclined state provided in the lock plate and can project laterally from the arm piece with at least one of the two arm pieces Are rotatably provided, and locking holes are provided on the leg pieces of the through-hole cover opposing the arm pieces and on the side faces of the plate frame, to which the ends of the lock plates are removably locked. Therefore, when the wire cover is not in use, the lock plate is rotated and the ends of the lock plate are inserted into the legs of the wire cover and the locking holes provided in the plate frame. Locking is performed by locking, and the floor plate, the plate frame, and the cover for wiring are securely secured by the lock plate. Tsu is intended to be click. In addition, when the cover for the wire is in use, the locking is performed by rotating the lock plate and locking the end of the lock plate to the locking hole provided in the plate frame. It is possible to securely lock the floor plate and the plate frame, on which the cover for the wire is held, with the lock plate without being lifted or rattled due to vibration or the like during walking. . In addition, the lock has a structure in which the lock plate is rotated and locked in the locking hole, and since there is no use of a spring or the like with aging, the lock is less susceptible to aging that may result in failure or damage. Yes, the durability is improved. In other words, the rotation of the lock plate causes the plate frame and the
Locking and unlocking with the lower plate
At the same time, lock and release the connection lid and the plate frame.
Can be used for plate frames, floor plates and
The locking and unlocking configuration of the three members of the wire lid can be shared,
The structure can be simplified, and the lock plate uses springs.
It is a rotating configuration that does not use
Stabilizes the lock function compared to the lock configuration where the performance deteriorates
The lock can be released by vibration of the floor etc.
Can be prevented and the lock function can be maintained for a long time.
There are advantages.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG.
Shows a locked state, (b) shows a state before locking, and (c) shows a locked state of the floor plate in another attached state of the wire cover.

FIG. 2 is a perspective view of the same.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a perspective view of a box constituting the inner outlet of the same.

FIG. 5 is a sectional view showing an attached state of the above.

FIG. 6 is a perspective view of a conventional example.

FIG. 7 is a partial sectional view showing a locked state of the above.

FIG. 8 is a partially cutaway perspective view of a plate frame and a cover for a wire in another conventional example.

FIG. 9 is a partially cut-away perspective view showing the mounting state of the above.

FIG. 10 is a partial cross-sectional view showing the same locked state.

FIG. 11 is a partial cross-sectional view showing a storage state of the wiring cover according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plate frame 2 Floor plate 3 Notch 4 Cover for communication line 4a Leg piece 5 Arm piece 6 Lock plate 7 Lock hole

Claims (1)

(57) [Claims] A floor plate is rotatably arranged with one end pivotally attached to an end in a plate frame, a notch is provided at the other end of the floor plate , and the notch is engaged with both sides of the notch. An arm piece that holds the wire cover in either a horizontal state or an inclined state is provided. At least one of the two arm pieces is rotatable with a lock plate that can protrude laterally from the arm piece. And a locking hole in which an end of the lock plate is removably locked on each of a leg of the wire cover opposing the arm and a side surface of the plate frame. Lock structure of the floor plate of the inner outlet.