JP3352438B2 - Lid for floor panel wiring entry - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid which is removably mounted in a cutout portion for taking out a wiring provided on a floor panel forming a free access floor.

[0002]

2. Description of the Related Art Conventionally, when a large number of floor panels are laid on a base floor such as a concrete floor or the like, a free space is formed between the lower surface of the floor panel and the upper surface of the base floor for cable wiring or the like. -A double floor structure called an access floor is known.

In the above-mentioned free access floor, power cables and signal cables for computer terminal equipment and communication equipment can be freely wired in a space below the floor. In order to connect the terminal device and the communication device arranged on the upper surface side of the floor, it is necessary to take out the wiring under the floor to the upper surface side of the floor. An outlet is formed.

In a conventional floor panel, the form of a wiring outlet is such that a substantially semicircular shape or a semi-elliptical shape or a rectangular shape is formed on the outer periphery of the floor panel when viewed from a plane. Some notches have been proposed in which a notch recessed on the side is formed, and a lid that allows the passage opening to be formed later is placed and mounted in this notch, some of which have already been put into practical use. Some are.

As an example of a conventional product, as shown in FIG. 12, a notch K is formed in the outer peripheral edge of a floor panel P by being recessed into the inner side of the panel P, and the notch K is attached to the notch K. In order to form the communication hole H later in the synthetic resin lid C, a notch S of a thin groove-shaped removal contour line along the shape of the communication hole H is formed on the lid C. There is a form in which the minute connecting portion L is formed on the cut S during molding. In this lid C, after being mounted in the cutout K, the cap-shaped small piece Pi surrounded by the cut S is removed to form a communication hole H in order to connect the wiring under the floor to the floor. Has become.

However, when the cover C is attached to the notch K formed on the periphery of the floor panel P, the load of furniture such as a chair caster can be intensively supported on the cover C. When the member is located, the lid C is broken by the concentrated load, or the flange formed on the periphery of the notch K for supporting the lid C is bent by losing the load, so that the lid C is in the notch K. Troubles such as collapse may occur.

Further, if the communication hole H provided in the cover C has the form and structure as illustrated in FIG. 12, there is a problem that the opening area of the communication hole H affects the strength of the entire cover C. Since it cannot be formed so large, the amount (the number) of cables that can be pulled out from one passage opening H is limited, and there is a slight difficulty in usability. In particular, when the panels P are arranged such that the cutouts K of the adjacent floor panels P face each other, to extract a considerable amount of cables, the cables must be passed through the four passage openings H of the two lids C. Since they are drawn out separately, not only does the work become complicated, but also it is not preferable from the viewpoint of appearance.

Further, a flange for mounting the lid C is formed at the edge of the cutout K which is opened in a substantially semicircular shape on the outer periphery of the floor panel P (not shown in FIG. 12). However, there is also a problem that when a wiring cable or the like is inserted into the communication hole H of the lid C, or when the cable is pulled from above after the insertion, the cable is easily caught on the flange.

In order to improve the problem of the wiring outlet H in the conventional free access floor panel described above, the applicant of the present invention considers the case where the cutouts K for the wiring of the floor panel P are arranged to face each other. In addition, the communication ports H, H of the panels P, P facing each other are connected and integrated to form a lid C so as to be able to cope with the insertion of a large amount of cables, and the cables are inserted into the cutouts K of the panel P when the cables are pulled out. A lid C having a wiring outlet H for a floor panel which is not likely to be caught by a formed flange has been developed, and a patent application has been filed.
The problem with the concentrated load applied to the lid C has not been solved yet.

[0010]

SUMMARY OF THE INVENTION The present invention relates to the above-described problems with respect to the concentrated load applied to a lid attached to a cutout for a wire provided in a floor panel for a conventional free access floor panel. Another object of the present invention is to provide a lid having a wiring outlet for floor panels, which can solve the problem of a small line capacity.

[0011]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a configuration in which a notch having a planar shape is appropriately formed at an appropriate position on the outer periphery of a floor panel. A lid placed on a support flange formed on the inner peripheral edge of the lid, wherein a wiring outlet can be formed later along a removal contour line formed on the outer periphery of the lid. A leg for supporting the lid from the lower surface is detachably provided.

In the lid of the present invention, the support portion of the leg formed on the back surface of the lid is formed in a cylindrical shape, and the cylindrical support portion is provided on the upper surface side of the lid so as to communicate with the cylindrical support portion. Can be formed along the inner peripheral surface of the groove.

Further, the cylindrical support portion is formed in a semicircular shape as viewed from a plane at a position along the outer periphery of the lid which is continuous with the outer periphery of the floor panel, so that the outer periphery of the two lids protrudes. When combined, one tubular support may be formed. With this configuration, the two lids can be simultaneously supported from below by one leg.

The leg used in the lid of the present invention employs a bolt leg used for a supporting leg device of the floor panel itself, thereby increasing the load bearing strength of the lid without increasing the number of parts. A support structure can be realized. In this case, it is desirable that the bolt leg be formed by screwing a cylindrical nut having a female thread and a middle flange with an outer flange on a rod having a male thread.

[0015] Further, as a lid for a wiring outlet in the present invention, a removal contour line for forming a removable cap is formed on an outer periphery of the lid, which is continuous with an outer periphery of the panel, and the cap is formed as described above. It is preferable that a line opening communicating with the outer periphery of the lid can be formed by removing along the contour line. In some lids of the present invention, a rib-shaped standing wall is provided so as to surround the formed wire opening.

[0016]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an example of the lid of the present invention, and FIG.
Is a bottom view of the lid of FIG. 1, FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2,
4 is a right side view of the lid of FIG. 1, FIG. 5 is a left side view of the lid of FIG. 1, FIG. 6 is a plan view of the lid of FIG. 1, and FIG. 7 is a part of an example of a leg supporting the lid. FIG. 8 is a front view in which a cover is shown in cross section to show a mounted state of legs, FIG. 9 is a plan view of a cutout portion for a wiring outlet formed in a floor panel, and FIG. 10 is a cover of the present invention. FIG. 11 is a plan view of another example of the mounted state, and FIG. 12 is a perspective view of an example of the conventional product.

First, in FIG. 9, a floor panel P having a substantially square planar shape has at least one location on its outer periphery, or
At a further position, a notch portion 20 for taking out a wiring, which is substantially U-shaped when viewed from above, is formed in a mode slightly recessed from the upper surface of the panel P. The notch 20 is provided with a notch groove 2 and a cap 3 having a substantially U-shape in plan view for forming a communication hole H to be described later. It is freely mounted. Notch
In addition to the above-mentioned U-shape, there are a semicircular shape, a semi-elliptical shape, a V-shape, a semi-polygonal shape, and the like. It can be applied by forming it into a corresponding planar shape. Hereinafter, description will be given in order from the form of the notch 20.

The notch 20 in the floor panel P of FIG.
A supporting edge 21 of the lid 1 is formed in a flange shape on the inner peripheral edge of the panel P so as to be one step lower than the upper surface of the panel P. The left and right corners of the support side 21 are engaged with and guided by positioning projections 11b, 11b formed on the lid 1, which will be described later.
Locking notches 21a, 21b for holding the lid 1 in the notch 20
Is formed.

The lid 1 of the present invention, which is mounted in the cutout 20 for taking out the wiring of the panel P, has a planar shape that just fits within the outer contour of the cutout 20, and the panel P
A cap 3 is provided facing the outer side and facing the straight side 1a and surrounded by a groove-shaped notch 2 as a removal contour line that is substantially U-shaped when viewed from a plane. This cap 3
When the bottom of the groove-shaped notch 2 is cut, the groove-shaped notch 2 is detached from the lid 1 to form a substantially U-shaped plane opening H. Here, cap 3
Is a recess 3a whose tip is slightly recessed from the straight side 1a of the lid 1.
In addition, a slit-shaped small hole 3b is formed behind the concave portion 3a.

The concave portion 3a is a concave portion for drawing a thin line or the like onto the panel P without removing the cap 3, and the small hole 3b is a hole for inserting a tool such as a bit for removing the cap 3. It is. On the other hand, the form of the groove-shaped notch 2 is
Here, the holding portion is a half-punch-shaped holding portion in which a thin bottom is left in the groove-shaped notch 2. However, the holding portion may be formed by a strip-shaped holding portion (not shown) or a combination of both. In addition, the groove-shaped notch 2 forming the communication hole H can be formed in any planar shape such as a semicircular shape, a triangular shape, and a rectangular shape in addition to a substantially U-shaped planar shape. , Are not limited to the embodiment.

Reference numeral 4 denotes a middle portion between the two groove-shaped cutouts 2 and 2 provided on the left and right of the cover 1 facing the straight side 1a.
A cut-out groove formed by a semi-circular groove-shaped notch as viewed from the plane formed facing 1a, and 5 is a flat circular cut-off groove formed immediately adjacent to the cut-off groove 4; , 5 also
When the inner portions 6 and 7 are removed along the contour as in the case of the cap 3, as in the case of the passage opening H, it functions as a passage opening formed by a semicircular notch or a circular hole.

Reference numeral 8 denotes a substantially U-shaped rib-shaped standing wall which is suspended from the back surface of the groove-shaped notch 2 of the lid 1 so as to surround the outer periphery of the lower surface of the cap 3, and 9 and 10 denote the cut-out grooves. 4 and 5, a vertical semi-cylindrical and cylindrical upright wall which hangs down so as to surround the lower surface outer contours of the inner portions 6 and 7,
These upright walls 8 to 10 are connected on the back surface of the lid 1 by an enclosure-like upright wall 11 positioned so as to surround the upright walls 8 to 10 and a connecting upright wall 12 connecting the upright walls 11 and the upright walls 8 to 10. It is integrated. In the above description, the semi-cylindrical upright wall 9 and the cylindrical upright wall 10 are also cylindrical portions that act as support portions for the legs 14 that support the lid 1 described below from below.

On the other hand, the surrounding upright wall 11 and the connecting upright wall 12 are inclined from the root side to the front end side of each upright wall so that the lower end side of the hanging upright wall becomes tapered when viewed as a whole. 11a and 12a are formed. The inclined surfaces 11a and 12a are provided so that the operation of attaching the lid 1 of the present invention to the cutout portion 20 of the floor panel P can proceed smoothly. That is, when the upright walls 11 and 12 are provided so as to hang down from the back surface of the lid 1, the tips of the upright walls 11 and 12 are easily hooked on the edge of the notch 20 or the flange-like support side 21 and this is smooth. This is for avoiding the work because the work may be hindered.

Reference numerals 13L and 13R denote left and right locking claw pieces for attaching and detaching the lid, which are provided vertically on the back surface of the lid 1 so as to be parallel to the left and right surrounding standing walls 11, and in this case, the heights of the claws 13c and 13d. The two nail pieces 13a and 13b are provided respectively, and one of the nails 13c or 13d is resiliently applied to the edge of the left and right sides of the flange-shaped support side 21 of the floor panel P described above. Is locked. Reference numeral 13e denotes a slit-shaped operation hole for operating the locking claw pieces 13L and 13R from the upper surface side of the lid 1 with a tool such as a screwdriver bit. Where the nail
The heights of 13c and 13d are different in order to cope with a case where the thickness of a metal plate such as a steel plate forming the floor panel P is different.

FIG. 7 shows the cylindrical standing wall 10 or 2 described above.
An example of a leg 14 that supports the lid 1 of the present invention from below by inserting it into the opposing semi-cylindrical standing walls 9 and 9 that become cylindrical when two floor panels P are butted against each other. And a cylindrical nut 14c formed by cutting a female screw 14d to be screwed into the male screw 14b on the inner surface, and forming a flange 14e at an intermediate position on the outer surface, and a cylindrical shape with the upper surface of the flange 14e. The cap 14 is formed of a cap-shaped synthetic resin cover 14f that covers the upper half of the nut 14c. Although 14g is a bit groove formed on the top of the bolt rod 14a, it may be formed in a square hole. The leg 14 can be shared by diverting one bolt rod 14a and a cylindrical nut 14c in a supporting leg device (not shown) mounted on the lower surface of the four corners of the floor panel P. It may be formed as a dedicated product.

As described above, an example of the lid 1 of the present invention is formed. In the example shown in FIGS. 1 and 2, the planar shape of the lid 1 is a substantially square shape in which a corner located on the inner side of the cutout portion 20 of the floor panel P is rounded. The present invention is not limited to this, and can be applied to a lid having another planar shape such as a semicircular shape or a triangular shape. Of course, since the planar shape of the lid 1 corresponds to the planar shape of the notch 20 on the floor panel P side, the planar shape of the notch 20 and the lid 1 may be any planar shape. It must be of a related shape. The material of the lid 1 is desirably made of synthetic resin in terms of molding and the like, but is not limited to synthetic resin, and may be, for example, metal.

The lid 1 of the present invention described above is similar to the floor panel P shown in FIG.
This is mounted and used in the notch 20 serving as the wiring outlet in the manner shown in FIGS. That is, when the lid 1 is attached to the notch 20, the left and right positioning projections 11 b formed on the back surface of the lid 1 are engaged with the locking recesses 21 of the notch 20.
The lid 1 is easily mounted because it is fitted and guided by the a and 21b, and the pawls on the locking pawl pieces 13L and 13R after mounting.
Since either one of the claws 13c or 13d is locked to the lower surface on the left or right side of the notch 20, the lid 1 attached to the notch 20 does not come off due to vibration or the like. In this mounting mode, if it is desired to form a communication hole H in the cover 1, a screwdriver bit or the like is inserted into the hole 3b of the cap 3 and the bit is pryed. And the cover 1 is detached from the cover 1, thereby forming the communication hole H. In the present invention, when the lid 1 is mounted, the height of the flange 14e of the cylindrical nut 14c of the leg 14 is adjusted in advance in the mounting hole of the leg 14 formed by the cylindrical standing wall 10 when the leg 14 is mounted. The lid 1 is attached to the cutout portion 20 of the floor panel P.

The lid 1 of the present invention is mounted in the cutout portion 20 of the floor panel P as described above, and the mounting portion of the leg 14 by the cylindrical upright wall 10 on the back surface of the lid 1 includes a leg body. 14 is mounted with its effective height adjusted (the position of the cylindrical nut 14c on the bolt rod 14a). Also,
As a result, there is almost no possibility that the lid 1 is largely bent or broken, or that the flange-like supporting side 21 of the notch 20 bends downward and the lid 1 falls or falls into the notch. Becomes

When the floor panel P on which the lid 1 is mounted is opposed, the semi-cylindrical upright wall 9 formed on the back surface of the front end side of the opposed lid 1 is brought into abutting and opposed state to form one cylindrical upright wall. Therefore, if the legs 14 are attached to the cylindrical portion, the two lids 1 and 1 are supported by one leg 14 from their lower surfaces, and the number of legs 14 to be used is reduced. Can be halved. As described above, the cylindrical standing wall 1
The leg 14 mounted on the cylindrical mounting part by the two semi-cylindrical upright walls 9, 0 or the inner portion 6 of the cutout groove 4 or 5 located on each of the upright walls 10 or 9. Or 7
By removing from the groove 4 or 5, a bit groove 14g formed at the upper end of the bolt leg 14a of the leg 14 appears from the removed hole. From the hole, the bolt leg 14a and the cylindrical nut 14c are formed.
The vertical position can be adjusted.

In the lid of the present invention, since the cap 3 faces the straight side 1a of the lid 1 and is provided with the concave portion 3a at the front end thereof, as shown in FIG. When the lids 1 and 1 face each other between the panels P, the caps 3 and 3 are positioned so as to face each other, so that the two facing concave portions 3a and 3a are used for one small rectangular communication line. If a notch is formed and either one of the caps 3 or both the caps 3 and 3 are separated, a passage opening having an opening area that is two steps larger than the notch is formed. When the groove-shaped notch 2 is semicircular or triangular,
The passage opening is formed by a semicircular or triangular or circular or square notch.

As described above, according to the present invention, when the lids 1 and 1 are disposed to face each other, the caps 3 and 3 facing each other are not removed at all, or one or both caps 3 are removed to open the cover. Through holes with different sizes formed in the lids 1, 1 can be selectively formed in three stages, so that a large number of wires can be drawn out from a small number of wires. As a result, not only can the wiring work be performed rationally, but also the appearance of the drawn wiring can be improved.

In the lid 1 of the present invention, the wiring opening H for taking out the wiring formed by removing the cap 3 is surrounded by a rib-shaped standing wall 8 having a substantially U-shaped plane. The installation form of the standing wall 4 serves as a guide for the wiring to be drawn out, and the wiring drawn from the base floor side to the upper surface side of the floor panel P like the conventional product is formed in the flange 21 of the cutout 20 of the floor panel P. There is no longer a situation in which the wires are caught, the wiring is damaged, and the work is difficult.

[0033]

The present invention is as described above, and the lid attached to the notch for the communication line formed on the outer periphery of the floor panel,
Because the support is supported from below by the support legs, even if the load concentrates on the attached lid, the lid is broken like the conventional product, or the flange-like supporting side of the notch supporting the lid is bent. There is almost no trouble that the lid sinks into the notch.

The mounting part of the leg supporting the lid is a cylindrical part formed by a semi-cylindrical and / or cylindrical standing wall formed on the back surface of the lid, and the standing wall forming the cylindrical part is formed by: In addition to acting as a reinforcing rib to ensure the strength of the lid, a removable cut-out groove was formed on the upper surface side of the cylindrical part, so if a leg is not attached, a through hole can be formed there. It is possible, and the line function in one lid can be further enhanced.

Further, according to the present invention, a removable cap for forming a wire opening is provided at a position facing the outer side of a lid attached to a cutout portion serving as a wiring outlet of the panel, at the tip of the cap. Since the recesses are provided on the sides, when the lids are arranged to face each other, the recesses of the facing caps in each lid, or the removed caps, the opening area of the caps is reduced from the passage hole with a smaller opening area. It is possible to form stepwise and selectively up to the line opening with twice the opening area,
As a result, the wiring can be drawn out reasonably and with good appearance.

In addition, the upright wall serving as the reinforcing rib on the back surface of the lid is tapered so as to be inclined toward the lower end, so that the lower end of the upright wall and the edge of the notch or the flange can be used when the floor panel is attached to or detached from the notch. Interference with the supporting side can be avoided to facilitate the attaching / detaching operation.

Further, the locking claw pieces are formed in a two-parallel type with different claw heights so as to be able to cope with the difference in the claw locking position due to the difference in the thickness of the plate material forming the floor panel. Therefore, it is possible to avoid the problem that the locking claws do not work effectively and the lid rattles due to the difference in the thickness of the plate material forming the floor panel.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of the lid of the present invention.

FIG. 2 is a bottom view of the lid of FIG.

FIG. 3 is a sectional view taken along the line AA of FIG. 2;

FIG. 4 is a right side view of the lid of FIG. 1;

FIG. 5 is a left side view of the lid of FIG. 1;

FIG. 6 is a plan view of the lid of FIG. 1;

FIG. 7 is a front view in which a part of an example of a leg supporting the lid is sectioned.

FIG. 8 is a front view in which a lid is sectioned to show a state of mounting the legs.

FIG. 9 is a plan view of a cutout portion for a wiring outlet formed in the floor panel.

FIG. 10 is a perspective view of an example of a mounted state of the lid of the present invention.

FIG. 11 is a plan view of another example of a mounted state.

FIG. 12 is a perspective view of an example of a conventional product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lid 2 Groove notch 3 Cap 4, 5 Cut-out groove 6, 7 Inside part 8 Rib-shaped standing wall 9 Semi-cylindrical standing wall 10 Cylindrical standing wall 11 Enclosed standing wall 12 Connecting standing wall 13L, 13R Locking claw piece 14 Leg 20 Notch for taking out wiring 21 Support side H Pass-through port P Floor panel

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-11-252754 (JP, A) JP-A-8-82077 (JP, A) JP-A 6-76526 (JP, U) JP-A 5-82577 80122 (JP, U) Japanese Utility Model Application Hei 5-57188 (JP, U) Japanese Utility Model Application Hei 5-84128 (JP, U) Patent 2817112 (JP, B2) Patent 2588237 (JP, B2) (58) Fields investigated (Int) .Cl. ⁷ , DB name) E04F 15/024 601 E04F 15/024 606

Claims (4)

(57) [Claims] 1. A lid which is formed at an appropriate position on an outer periphery of a floor panel and which is appropriately formed in a planar shape, and which is mounted on a support flange formed at an inner peripheral edge of the notch. A floor panel in which a wiring outlet can be formed later along the removal contour formed in the lid, wherein a leg for supporting the lid from the lower surface is detachably provided on the back surface of the lid. Lid for wiring entry. 2. The support portion of the leg formed on the back surface of the lid is formed in a cylindrical shape, and is formed along the inner peripheral surface of the cylindrical support portion on the upper surface side of the lid so as to communicate with the cylindrical support portion. 2. A lid for a wiring outlet of a floor panel according to claim 1, wherein a cutout groove is formed. 3. The wiring outlet lid according to claim 1, wherein the cylindrical support portion is formed in a semicircular shape as viewed from a plane at a position along the outer periphery of the lid continuous with the outer periphery of the floor panel. 4. The wiring outlet cover according to claim 1, wherein the leg uses a bolt leg having a cylindrical nut used for a supporting leg device of the floor panel itself.