JP3063389B2 - Structure of knob for lock operation of floor plate - 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 of a floor plate of a floor outlet which is attached to an opening provided in a floor material.

[0002]

2. Description of the Related Art Conventionally, floor outlets have been used as windows for accessing electric wires installed under the floor to the ends of electrical equipment installed on the floor. Floor outlets are provided rotatably on a plate frame of the floor outlet. The floor plate, which is the cover of the floor outlet, should be opened and the floor plate closed when there is no wiring work or when there is no wiring inside. In addition, it is required to be in harmony with the surrounding carpet for safety when walking or for aesthetics. Therefore, it is necessary to provide a lock mechanism to prevent the floor plate from opening and closing unintentionally during walking or the like. This locking mechanism includes a mechanism in which horizontal movement of a lever and vertical movement of a push button are changed to horizontal movement of a lock plate and locked in a groove of a floor plate. There is a structure in which a plate is rotated and locked by locking it in a groove provided in a plate frame. The part of the knob that controls this rotation is
Since the operation is performed on the floor surface, it is necessary to perform many operations in a state where the posture is poor, to rotate reliably, and to make it possible for the operator to recognize the open / closed state of the lock. Also, because it is a floor,
Rotation becomes difficult due to dust entering the gap,
In order to prevent the lock function from lowering, or from the design of the surface, it is necessary to minimize the gap between the rotation guide hole and the knob including the rotation shaft. For this purpose, the relationship between the guide hole for rotation and the knob including the rotation shaft has been proposed as shown in FIGS.

[0003]

However, in the conventional example shown in FIG. 1, since the information is displayed on the floor surface and is difficult to distinguish, it is not reliable. In addition, making the gap between the inner peripheral surface of the rotation guide hole and the outer peripheral surface of the knob including the rotation shaft uniform and as small as possible has a problem of high price. Further, even if the above-mentioned gap can be manufactured without increasing the price, there is a problem that rotational friction increases and operability deteriorates. Furthermore, since there is no lock feeling at the lock position, there is a disadvantage that the position is shifted within a long period due to vibration or the like. In the structure of the prior art shown in FIGS. 2 and 3, a convex portion or a concave portion which fits into the lock position and the unlock position is fitted to the inner surface of the rotation shaft guide hole and the outer surface of the knob including the rotation shaft. The concave portion provides a lock feeling, but the gap is small and dust and dust enter the gap, and the frictional force tends to increase when rotating. Join
There is a problem that the life of the knob side including the rotating shaft is shortened.

An object of the present invention is to solve the above-mentioned problems, and a floor plate which has good operability on a floor surface, can be securely locked, and does not cause an increase in price in terms of manufacturing. The purpose of the present invention is to provide a structure of the operation knob of the above.

[0005]

According to the present invention, there is provided the above-mentioned object.
One end is rotatable inside the plate frame 1 to achieve
A floor plate 2 is provided at
A notch 3 is provided at the end, and a wire is provided at both ends of the notch 3.
Hold the lid 4 in a horizontal state or an inclined state
Arm pieces 2a, 2a, and at least one of both arm pieces 2a
By rotating the arm piece 2a from both side faces of the arm piece 2a.
A lock piece 6 that can be protruded to the side is provided rotatably,
The leg piece 4a of the wire cover 4 opposing the arm piece 2a
The ends of the lock plates are locked to the side surfaces of the frame 1 respectively.
A rotation hole provided with a locking hole 7 to which the lock plate 6 is coupled.
State in which the knob 14 including the arrow rotates the rotation guide hole 110
Between the locked position and the unlocked position.
This is to provide a holding state that is, specifically,
Lock position and lock release on the inner surface of the rotation guide hole 110
The convex portion 110a is provided at the removal position and at one or more other positions.¹,
110a^Two, 110a^ThreeAnd a knob 1 including a rotating shaft.
Around the 4 side, provided on the inner side surface of the rotation guide hole 110
Convex part 110a¹Two convex portions 14 so as to sandwich
a¹, 14a ^TwoAre provided at intervals.

[0006]

[Function] However, when the cover 4 is not used.
When the lock plate 6 is rotated, the end of the lock plate 6 is rotated.
At the ends of the legs 4a of the wire cover 4 and the plate frame 1.
Locked by locking in the locking hole 7
And the floor plate 2 and the plate frame with the lock plate 6.
1 and the lid for communication 4 are securely locked,
Lock when the cover 4 is in use.
By rotating the plate 6, the end of the lock plate 6 is set on the plate frame 1.
Locking is performed by locking the locking hole 7 that has been formed. This
Here, the two knobs provided on the outer peripheral surface of the knob 14 including the rotating shaft
Convex part 14a ¹, 14a^TwoIs inside the guide hole 110 for the rotating shaft.
Side projections provided at the locked and unlocked positions
Part 110a¹, 110a^TwoIs configured to sandwich
As a result, a more locking feeling is obtained and the
It is.

[0007]

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 provided on a floor base such as a slab with a gap for wiring like a floor of an access floor, and is wired under this floor. A floor outlet is provided as a window for accessing the electric wires on the floor to terminals of electric devices on the floor. The floor is formed by arranging a large number of block-like floor materials 8 vertically and horizontally, and carpets 9 are laid on the floor materials 8 as shown in FIG. The floor material 8 is made of synthetic resin or metal, and is installed on the floor with its legs placed on a floor base such as a building slab. The floor material 8 is provided with an opening 8a for attaching a floor outlet, and the floor outlet is attached to the opening 8a for attaching a floor outlet.

The floor outlet comprises 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.
A floor plate 2 is provided with a notch 3 at the other end of a floor plate 2 with one end pivotally attached to an end in a plate frame 1. A decorative plate 11 having a U-shaped flat surface is placed at the end of the floor plate 2. The decorative plate 11 and the protruding portions 2 a of the floor plate 2 protruding from both sides of the notch 3. An arm piece 5 is formed. At least one of the two arm pieces 5, that is, at least one of the projecting portions 2a is provided with a concave portion 12 that is concavely concave.
The lower end 14b of the knob 14 including the rotating shaft to which the shaft is coupled is supported by a projection 13 projecting from the bottom 12b of the concave portion 12, and the rotating shaft is formed by a rotating guide hole 110 provided in the decorative plate 11. The upper end of the knob 14 is supported. In the arrangement state, as shown in FIG. 7, the upper surface is arranged to be flush with the upper surface of the decorative board 11. By rotating the lock plate 6 housed and disposed in the concave portion 12, the end portion is in a state of protruding laterally from both side surfaces of the arm piece 5. That is, the length dimension a of the lock plate 6 is
The length of the recess 12 is shorter than the length d, and the width of the recess 12 is longer than c. The width B of the lock plate 6 is shorter than the width C of the recess 12. In the illustrated embodiment, the lock plate 6 has a rectangular shape. However, the present invention is not limited to this. When the lock plate 6 is turned, the ends protrude laterally from both side surfaces of the arm piece 5. If it is a thing, it may be a shape like an oval shape.
A cover 4 for a wire is detachably attached to the notch 3, and the cover 4 for a wire can be attached to the notch 3 in either a horizontal state or an inclined state. It has become. The cover 4 for communication lines includes a cover plate 4b formed substantially in the same shape as the opening of the notch 3,
It is constituted by leg pieces 4a projecting obliquely downward from the lower surface of the cover plate 4b, and a through hole 19 is formed between the tip of the leg piece 4a and the cover plate 4b. Are openings for passing electric wires. Two leg pieces 4a, 4
A groove portion 20a, 21a is provided on the side surface of a.
The holding pieces 2 of the two projecting portions 2a are formed by the groove portions 20a and 21a.
2 are provided with a first locking portion 20 and a second locking portion 22 that are detachably locked to the second locking portion 2. By locking the first locking portion 20 formed by the obliquely inclined groove portion 20a to the holding piece 22, the mounting can be performed in an inclined state with respect to the notch 3, and FIG. As shown in (c), a state in which a passage opening 19 is provided with a passage opening can be attached to the notch 3 in a use state when conducting a passage to a floor outlet. 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. As shown in FIG. 8 (a) or (b), the notch 3 can be attached in a flat non-use state when no wire is connected to the floor outlet. It has become. The leg 4a of the cover 4 for a wire which is attached to the floor plate 2 in a non-use state and faces the arm 5 in a state where the floor plate 2 is closed.
A locking hole 7 is provided on the side surface of the plate frame 1 so that the end of the lock plate 6 is detachably locked. For mounting the floor outlet on the floor material 8, various conventionally known mounting means can be adopted. For example, as shown in FIG. 5, an outer flange provided at the opening of the box 10 of the inner outlet is used. 10a is applied to the upper surface side of the floor material 8 on the outer periphery of the floor outlet mounting opening 8a, and in this state, the screw 16 is tightened to clamp the floor material 8 between the mounting bracket 15 and the outer flange 10a, thereby connecting the floor outlet. It is designed to be attached. Box 1
An electrical connector 18 such as a power outlet and a telephone modular jack is installed in the unit 0 by an instrument mounting plate 17.

Then, as shown in FIG. 8A, the lock plate 6 is turned by operating the knob 14 including the turning shaft with a tool such as a driver or a coin from the state shown in FIG. 8B. By causing the ends of the lock plate 6 to protrude to the side, the ends of the lock plate 6 fit into the locking holes 7 formed in the plate frame 1 and the leg pieces 4a of the wire cover 4. The floor plate 2 and the wire cover 4 are locked by being locked. When releasing the lock, the knob 14 including the rotation shaft is operated so that the end of the lock plate 6 is disengaged from each of the locking holes 7, and the lock plate 6 is rotated. The lock is released when the portion is stored in the recess 12. The floor plate 2 is opened to perform a wire connection work, or an electrical connection device 18 is mounted in the box 10. Things. Here, the upper surface of the knob 14 including the rotating shaft integrally fixed to the lock plate 6 is provided with a groove 14a on which a tool such as a driver or a coin can be hooked. The knob 14 is mounted such that the length direction of the groove coincides with the length direction of the lock plate 6, and the groove 14a is oriented from the vertical direction shown in FIG. 7 to the horizontal direction. By rotating the lock plate 6, the end of the lock plate 6 is locked in the locking hole 7, and the lock state by the lock plate 6 is changed to the groove 14a which rotates together with the knob 14 including the rotation shaft.
The direction can be easily understood.

The protrusions 14a ¹ , 14a are located on the outer periphery of the knob 14 including the rotating shaft and sandwich the groove 14a.
² are provided, and convex portions 110a ¹ , 110a ² , 110a ³ are provided on the inner surface of the hole 110 provided in the decorative plate 11, and the position of the convex portion 110a ¹ is a lock position, and The convex portions 14a ¹ and 14a ² provided on the outer circumference of
It is a structure that holds it so as to be sandwiched. Further, as shown in FIG. 11, the structure of the protrusions 14c, 14c provided on the outer circumference of the knob 14 including the rotation axis is smooth on one side and steep in angle on the other side. The shape of the convex portions 110b ¹ and 110b ^{2 on} the inner peripheral surface of the 110 is also smooth on one side and sharp on the other side, further enhancing the lock feeling.

Then, as shown in FIG. 8 (c), when the wire cover is in use, that is, when the wire cover 4 is held on the floor plate in an inclined state. When the lock plate is rotated, the end of the lock plate
The floor plate and the plate frame are locked by being locked by the locking holes of the frame, so that the floor plate is not affected by vibrations such as when walking even when the cover for traffic is in use. It doesn't snap or open.

[0012]

As described above, according to the present invention, a floor plate 2 is rotatably disposed by pivotally attaching one end to an end in a plate frame 1, and the other end of the floor plate 2 is attached to the other end of the floor plate 2. Notch 3
Arm pieces 2a are provided at both ends of the notch 3 to hold the wire cover 4 in either a horizontal state or an inclined state,
A lock plate 6 whose end portion can be protruded laterally from both side surfaces of the arm piece 2a by being rotated to at least one of the both arm pieces 2a is rotatably provided, and a through line facing the arm piece 2a is provided. In the floor plate 2 of the floor socket, a locking hole is provided on the side of the leg 4a of the cover 4 and the side surface of the plate frame 1 so that the end of the locking plate 6 is detachably locked. Protrusions 14a ¹ and 14a ² are provided on the outer periphery of the knob 14 including the rotating shaft to which the plate 6 is coupled, and the convex portions 110a ¹ , 110a ² and 110 are provided on the inner surface of the rotating shaft guide hole 110.
Because it is provided a ^3, contact with the inner side of the outer surface and the pivot axis guide hole 110 of the knob 14, since only the apex of the convex portion, frictional even by narrowing the gap between the contact portion is small Therefore, a lock mechanism with a small frictional force can be obtained even if the backlash is small. In addition, the surfaces on the opposite sides of the protrusions 14c provided on the outer periphery of the knob 14 including the rotation axis are made to rise steeply, and the opposite surface is made a smooth surface. Convex part 110 provided on inner side surface of guide hole 110
The opposite surfaces of b ¹ and 110b ² are formed as steep rising surfaces, and the opposite surface is formed as a smooth surface, so that the knob can be easily rotated between the locked position and the unlocked position. It is difficult to rotate to the opposite side from the unlock position beyond the position, and the operation is free from errors.

[0013]

[Brief description of the drawings]

FIG. 1 is a plan view showing a first conventional example of the present invention.

FIG. 2 is a plan view showing a second conventional example of the present invention.

FIG. 3 is a plan view showing a third conventional example of the present invention.

FIG. 4 is a perspective view including a box 10 according to an embodiment of the present invention.

FIG. 5 is a sectional view including the box 10 according to the embodiment of the present invention.

FIG. 6 is an exploded perspective view of one embodiment of the present invention.

FIG. 7 is a plan view showing a state where the knob 14 including the rotating shaft according to the present invention is fitted to the rotating shaft guide hole 110;

FIG. 8 is a cross-sectional view showing a state where the cover for wiring 4 is attached to the decorative board 11 during use and non-use.

FIG. 9 is a perspective view of a knob 14 including a rotation shaft according to the present invention.

FIG. 10 is a partial perspective view of a decorative plate 6 provided with a guide hole 110 for a rotating shaft according to the present invention.

FIG. 11 is a plan view showing a state in which a knob 14 including a rotating shaft and a rotating shaft guide hole 110 are fitted in the second embodiment of the present invention.

FIG. 12 is a perspective view of a wire cover 4;

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H02G 3/18 H01R 13/46

Claims (2)

(57) [Claims] 1. A floor plate is rotatably mounted with one end pivotally attached to an end in a plate frame, and a notch is provided at the other end of the floor plate, and both ends of the notch are provided. An arm is provided to hold the wire cover in either a horizontal state or an inclined state, and the end can be protruded laterally from both side surfaces of the arm by rotating at least one of the two arms. The lock plate is rotatably provided, and the ends of the lock plate are detachably locked to the leg of the wire cover and the side of the plate frame facing the arm. In a floor plate of a floor outlet provided with a hole, a lock position, an unlock position, and other positions on an inner surface of a rotation guide hole through which a knob including a rotation shaft to which the lock plate is coupled is guided at the time of rotation. Protrusions are provided at one or more points, and the outer surface of the knob including the rotation axis is Furoapure the lock plate at a position corresponding to the locked position, characterized in that the convex portion so as to sandwich the protruding portion of the locking position provided on the inner surface of the rotating guiding hole provided at the two interval -
Lock control knob structure. 2. The projections of the lock position and the lock release position, which are provided on the inner side surface of the rotation guide hole, are formed as steep rising surfaces, and the remaining surfaces are formed as smoothly inclined surfaces. ,
2. The floor press according to claim 1, wherein the opposing surfaces of the two projections provided on the outer surface of the knob including the rotating shaft have a steep rise, and the other surface has a smooth surface. Lock control knob structure.