JPH0231872Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a conductive wire that is mainly provided on the floor and allows the conductive wire to be drawn out from the groove cover of a wiring pit in which the conductive wire runs. It relates to a drawer device.

[Problem to be solved by the invention] The wiring pit is for providing electrical conductivity to electrical equipment without exposing conductive wires to the floor,
Therefore, in order to conduct electricity to the required electrical equipment, it is necessary to draw out the conductive wire in the pit from an appropriate location. Conventionally, when drawing out the conductive wire, a wire passage port was previously formed in the metal groove cover, and the wire was drawn out through the wire passage hole. By the way, if this is done, the wire passage port will be exposed in unnecessary places, and foreign objects will easily enter the pit and damage the conductive wire coating. Since the wire opening is formed to have a large opening so that several conductive wires can pass through, the conductive wire may not be held properly at the outlet, causing the conductive wire to loosen, and the wire opening may become loose. The conductive wire coating may easily break due to friction with the inner circumferential surface of the conductive wire.

In order to eliminate the above drawbacks, Utility Model Application No. 58-34530
As disclosed in , a mounting edge hole is provided in the groove cover in advance, and the mounting edge hole is closed from above with a wire passage cover, and when the conductor is to be pulled out, the wire passage cover is drilled or the like is drilled. There is one in which a wire passing hole corresponding to the outer diameter of the lead wire is bored and the conducting wire is drawn out from the hole. By the way, the fixing of the wiring cover is as follows:
Since it is connected to the frame fixed to the inner periphery of the mounting edge hole from above using screws, installation is troublesome and the screw head is exposed on the top surface of the wiring cover.
There were defects such as spoiling the appearance.

Furthermore, in the case of the structure in which the conducting wire is inserted through the hole and pulled out from the hole as described above, the insertion work is troublesome, and the work of removing the conducting wire when changing the wiring is also troublesome.

On the other hand, this type of wiring pit is often used on office floors, and there is a strong demand for its construction to be done beautifully. However, the conventional configuration had the disadvantage that the continuity of the side shape of the metal groove lid of the wiring pit was lost, and the wiring lid stood out strangely and did not match the surrounding floor shape, spoiling the appearance of the floor surface. .

The present invention is arranged on the side edge of the groove cover of the wiring pit, and is aimed at eliminating the problems of the conventional drawbacks.

[Means for Solving the Problems] The present invention provides a mounting edge hole that is drilled in the side of a metal groove cover of a wiring pit and opens at one side edge of the groove cover.
A U-shaped frame is fitted, and guide strips such as guide ridges and guide grooves and engagement grooves are provided on two corresponding side surfaces on both sides of the opening edge of the frame, and a mounting edge. A wiring cover that is fitted from the opening edge of the hole and closes the mounting edge hole has an outer shape that uniformly matches the inner shape of the U-shaped frame when the inner edges are in contact with each other. It consists of front and rear half-lid pieces each having a guide strip for the U-shaped frame body and a guide strip for fitting from the side on each side edge, and the front half-cover piece has its inner edge. A semicircular hole for drilling is provided on the edge, and a frame piece that matches the shape of the edging frame piece provided on the side edge of the groove cover is fixed to the outer edge of the rear half-cover piece, and the inner A semicircular through hole is provided at the end edge to form a small diameter through hole that matches the semicircular through hole of the half lid piece, and furthermore, the inner surface of the frame piece is allowed to bend slightly inward. The present invention is characterized in that locking protrusions each having an engaging pawl that engages with the engaging groove are provided in a protruding manner on the left and right sides.

[Example] An example of the present invention will be described with reference to the accompanying drawings.

1 and 5 show a wiring pit a, and its construction will be explained with reference to FIG.
Differential reinforcements 3 are planted at regular intervals. Reference numeral 4 denotes a support crosspiece made of hard aluminum extrusion material, which includes an L-shaped support step 6 with a fitting groove 5 formed on the locking step surface, and a vertical fitting groove 7 connected to the lower part of the L-shaped support step 6. The anchor 8 fitted in the fitting groove 7 is welded to the difference reinforcement 3 to support the support bar 4 along the groove 1. After that, mortar is applied to construct the wiring pit a.

A large number of conductive wires b are placed in the constructed wiring pit a.
After passing through, an appropriate number of rectangular groove covers 11 are successively placed on the support bar 4 as shown in FIG. 1 via the vinyl chloride cushion material 10 fitted in the fitting groove 5. .

To explain the groove cover 11 in more detail, reference numeral 12 denotes a cushion material 1 provided on the support bar 4.
It is a rectangular aluminum frame with a thickness equal to the height from the top surface of 0 to the floor surface, and a support ridge 13 is formed approximately at the center of the inner surface of the frame, and a small ridge 14 is formed on the inner surface of the upper end. A floor main material 15 made of galvanized steel plate or the like is fitted between the strips 13 and 14, and the small protrusion 1
A floor finishing material 16 made of a decorative board made of synthetic resin, a board made of real wood, etc. is applied to the inner surface of the floor 4. The sum of the thicknesses of the floor main material 15 and the floor finishing material 16 is made equal to the height from the upper surface of the support ridge 13 to the upper end of the edging frame piece 12.

The floor main material 15 of the groove cover 11 is loaded from above, and conductive wires b such as signal wires pass through the wiring pit a, so in order to preserve the conveyance information, the galvanized steel plate is Therefore, a strong material with electromagnetic shielding ability is suitable.

The thickness of the floor main material 15 needs to be increased when the width of the pit is increased in order to maintain the strength of the groove cover 11. Therefore, in response to this, the position of the support protrusion 13 is set slightly above the center of the border frame piece 12, and the height from the lower surface of the support protrusion 13 to the lower end of the border frame piece 12 is The height from the upper surface of 13 to the upper end of the edging frame piece 12 is made different, and when the edging frame piece 12 is used upside down, a slightly thicker floor main material 15 can be mounted on the support ridge 13.

Further, on the sides of the groove cover 11, there are provided an appropriate number of square-shaped mounting edge holes 18 which are opened at the side edges of the groove cover 11 by cutting out the edge frame piece 12, the floor main material 15, and the floor finishing material 16. Form.

Next, the main parts of the present invention will be explained.

Regarding FIG. 2, 20 indicates the height of the border frame piece 1.
2 and is aligned with the inner surface shape of the mounting edge hole 18, and the locking shelf 21 is formed on its outer peripheral surface with through holes 22 provided at appropriate intervals. . The thickness and height position of the locking shelf 21 are the same as the supporting protrusions 13 of the edge frame piece 12, so that the above-described edge frame piece 12 can be used upside down.

Further, on two corresponding inner surfaces on both sides of the opening edge of the U-shaped frame 20, two upper and lower guide protrusions 23 and 24, which are examples of guide strips, are provided from the upper end of the frame 20 to an upper guide protrusion. Position up to column 23 and frame 20
They are provided so that the position from the lower end to the lower guide protrusion 24 coincides with each other.

Furthermore, rectangular engagement grooves 25, 25 are provided near the opening edges of two corresponding side surfaces of the U-shaped frame 20, respectively.

The U-shaped frame 20 having the above configuration is fitted into the mounting edge hole 18 from the opening edge by placing the locking shelf 21 against the lower surface of the floor main material 15 around the mounting edge hole 18,
It is fixed by driving a screw into the through hole 22 of the locking shelf 21 from below. At this time, since the height position of the locking shelf 21 is made equal to the position of the supporting protrusion 13 as described above, the upper end of the U-shaped frame body 20 is aligned with the upper surface of the groove cover 11. When the edge frame piece 12 is used upside down as described above, the U-shaped frame 20 is also turned over and fitted into the mounting edge hole 18. At this time, the two guide protrusions 23 and 24 were provided so that the position from the upper end of the U-shaped frame 20 to the upper guide protrusion 23 and the position from the lower end of the U-shaped frame 20 to the lower guide protrusion 24 were aligned. As described above, when the U-shaped frame body 20 is turned over together with the edging frame piece 12, the guide protrusion 24 is in the upper position, and there is no problem in fitting the wire passage lid 30, which will be described later.

Reference numeral 30 is a wiring cover, and front and rear half-cover pieces 31,
32, and its outer shape in the abutting state is made to perfectly match the inner surface shape of the U-shaped frame 20. Further, on both side edges of the half-lid pieces 31 and 32,
Guide grooves 33, which are examples of guide grooves that can be fitted into the guide protrusions 23 (guide protrusions 24), are provided, and in the fitted state shown in FIG. 3, the upper surface thereof has the U-shape. The thickness is determined so as to match the upper end surface of the frame 20.

The front half-cover piece 31 has a width that matches the inner width of the U-shaped frame 20, and a longitudinal length that matches the U-shaped frame 2.
0, and three semicircular through holes 34a for drilling are provided in the inner edge thereof as shown in the figure.

The rear half-cover piece 32 has a width that matches the inner width of the U-shaped frame 20, and a front-to-back length that matches the U-shaped frame 2.
A frame piece 36 that matches the circumferential shape of the edging frame piece 12 is fixed to the outer edge of the board, which is approximately half the front-to-back length of the inner surface of the board, and the connected state shown in FIG. 3 is attached to the inner edge. , the semicircular through hole 3 of the half lid piece 31
Three semicircular through holes 34b are provided which coincide with 4a to form small diameter through holes 35. Furthermore, on the inner surface of the lower part of the frame piece 36, two locking protrusions 37 are provided with engaging claws 38 that are allowed to bend inward a little, and project from the left and right below the substrate.

The case where the conductive wire b is drawn out from the mounting edge hole 18 will be explained.

The half lid pieces 31 and 32 are connected in advance and the small diameter through hole 35 is utilized to form a wire passage hole 40 having a diameter substantially equal to the diameter of the conductive wire b. Therefore, a semicircular hole 40 corresponding to the wire passage hole 40 is formed in the semicircular through hole 34a.
The U-shaped frame 2 has the half lid piece 31 formed with the shape a fixed in advance on the inner circumferential surface of the mounting edge hole 18.
0, from the opening edge to the guide groove 23
3, slide along the guide protrusion 23, and fit deep inside the U-shaped frame 20. after that,
A required conductive wire b is pulled out and passed through the semicircular hole 40a. Furthermore, the half lid piece 32 is attached to the U-shaped frame body 20.
In the same manner as described above, the guide protrusion 23 is slid and inserted from the opening edge, and its rear edge is brought into contact with the inner edge of the half-lid piece 31, and the semicircular hole 40b formed in the rear edge As well as surrounding the line b, the locking protrusions 37, 3
The engaging claws 38 of No. 7 are fitted into the engaging grooves 25, 25, thereby locking the wire passage lid 30 in the U-shaped frame 20 so that it cannot escape from the opening edge. In this state, the conductive wire b is pulled out from the wire passage hole 40, and the mounting edge hole 18 is closed by the wire passage lid 30 composed of the half lid pieces 31 and 32, and the The frame piece 36 of the lid piece 32 is a U-shaped frame body 2
0, and since the frame piece 36 matches the outer peripheral shape of the edging frame piece 12, the frame piece 36 shown in FIG. It continues evenly with both ends e, e of the edging frame piece 12, and the conductive wire b can be drawn out without causing any discomfort in the external shape of the edging frame piece 12.

As described above, when the U-shaped frame 20 is turned over to make the thickness of the main floor material 15 different depending on the width of the wiring pit a, the wiring cover 30 is fitted onto the guide protrusion 24. to wear

In addition, guide grooves are formed on two corresponding inner surfaces on both sides of the opening edge of the U-shaped frame 20, and guide protrusions that can be fitted into the guide grooves are formed on both side edges of the wire passage lid 30. You may also do so.

[Operations and Effects of the Invention] As clarified from the above explanation, the present invention has a mounting edge that is bored in the side of the metal groove cover 11 of the wiring pit and opens at one side edge of the groove cover 11. Hole 18
The half lid piece 31 that fits into the U-shaped frame 20 and constitutes the wire passage lid 30 inside the frame 20 matches the shape of the edging frame piece 12 provided on the side edge of the groove lid. A half lid piece 32 with a solidified frame piece 36 is removably fitted, and a conductive wire b is held in a wire passage hole 40 formed at the contact edge between the half lid pieces 31 and 32. Because there is a conductive wire b interposed between the half lid pieces 31 and 32.
are the engaging claws 38 that engage with the engaging grooves 25, 25,
38 is engaged and the half-lid piece 32 is fixed, so that it is firmly clamped.

(b) Unlike inserting into a hole formed in the wiring cover,
By inserting and removing the half-cover piece 32 from the side of the groove cover 11, the conductive wire b can be removed extremely easily.

C. The half lid piece 32 is provided with a frame piece 36 that matches the shape of the edging frame piece 12 provided on the side edge of the groove lid, and the half lid piece 32 is inserted into the frame 20 from the side. By fitting them together, the side edges of the groove cover 11 exhibit a continuous design shape in the fitted state, making it possible to make the wire passage cover 30 inconspicuous and form a beautiful floor surface.

(d) Unlike the conventional method in which the wiring lid is placed over the mounting edge hole from above and fixed with screws from above, the wiring lid itself can be easily installed.

E. Screw heads are not exposed on the surface of the wiring cover 30, making the floor surface beautiful.

It has excellent effects such as

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the wiring pit a, and Fig. 2 is a U-shaped frame 2.
0, and an isolated perspective view of the wiring lid 30, FIG.
A cross-sectional view taken along the line A--A in FIG. 5 is a vertical side view of the wiring pit a with the lid closed. 11...Groove lid, 12...Frame body, 18...Mounting edge hole, 20...U-shaped frame body, 23, 24...Guiding protrusion, 25...Engagement groove, 30...Wire connection cover, 31,3
2... Half lid piece, 33... Guide groove, 35... Small diameter through hole, 37... Locking protrusion piece, 38... Engaging claw, 4
0... Wiring hole, a... Wiring pit, b... Conductive wire.

Claims (1)

[Claims for Utility Model Registration] A mounting edge hole 18 that is bored in the side of the metal groove cover 11 of the wiring pit and opens at one side edge of the groove cover 11.
A U-shaped frame 20 is fitted into the frame 20, and guide strips 23 and 24 such as guide strips and guide grooves are engaged with two corresponding inner surfaces on both sides of the opening edge of the frame 20, respectively. In addition to providing the grooves 25, 25, a wiring cover 30 that is fitted from the opening edge of the mounting edge hole 18 to close the mounting edge hole 18 is placed in the U-shape with the inner edges abutting each other. A guide strip 33 has an outer shape that perfectly matches the inner surface shape of the frame, and is fitted from the side with the guide strips 23 and 24 of the U-shaped frame on both side edges.
The front half-cover piece 31 has a semicircular through hole 34a for drilling at its inner edge, and the rear half-cover piece 31 has a semicircular through hole 34a for drilling. A frame piece 36 that matches the shape of the edging frame piece 12 provided on the side edge of the groove cover is fixed to the outer edge of the piece 32, and a semicircular through hole 34a of the half cover piece 31 is fixed to the inner edge. A semicircular through hole 34b is provided which coincides with the small diameter through hole 35, and furthermore, the frame piece 36 is
The engaging claw 3 is allowed to be slightly bent inward on the inner surface of the engaging claw 3 and engages with the engaging grooves 25, 25.
A conductive wire drawing device for a wiring pit, characterized in that locking protrusions 37, 37 having locking protrusions 8, 38 are provided projecting from side to side.