JPH0540484U - Double floor fixing device - Google Patents

Abstract

(57) [Summary] [Purpose] In a double floor, a floor panel and a main joint cover can be firmly fixed without complicating the structure or impairing the ease of wiring. [Structure] When the floor panel 1 is supported by a joist member 8 with an adjuster bolt 13 so that its height can be adjusted, a female screw hole 25 is formed on the upper surface of the adjuster bolt 13.
The main joint covers 24, 21 and the floor panel 1 are pressed and fixed to the joist member 8 by the screws 26 screwed into the female screw holes 25.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a large number of floor panels formed in a rectangular shape in plan view are laid on a floor base made of concrete or the like in a vertical and horizontal arrangement with a joint space between adjacent floor panels. However, the present invention relates to an improvement of the device for fixing the above-mentioned floor panels and the joint cover in the double floor in which the joint gap is covered with the joint cover.

[0002]

[Prior Art]

 In general, double floors are provided with joist members provided with adjuster bolts in parallel on the floor base at predetermined intervals, and the joist members are attached to one longitudinal edge and one longitudinal side edge of these joist members. By placing the floor panels located on both sides of the sandwiched panel with the side edges properly separated, a large number of floor panels are arranged vertically and horizontally with a joint gap between the side surfaces of adjacent floor panels. It is laid in a state, and the joint gap is closed by a joint cover adapted to be placed on a flange portion protruding from the side surface of each floor panel.

In Japanese Utility Model Application Laid-Open No. 2-77235 as a prior art, a flange portion of each floor panel is provided at a corner gap portion surrounded by corner portions of four floor panels of the joist member. While fixing the mounting members at approximately the same height, attach each joint cover to the end of each joint cover so that the ends of the joint covers are in contact with each other at the corner gaps. A protrusion is formed so as to be placed on the upper surface of the member, and a pressing member that closes the corner gap is superposed on the protrusion of each joint cover, and the pressing member is attached to the mounting member. A fixing device is disclosed in which the joint cover and the floor panel are pressed and fixed to the joist member by screwing.

[0004]

[Problems to be solved by the device]

 However, in this prior art, since the joint cover and the fixing member for fixing to the floor panel have to be separately provided on the upper surface of the joist member, not only the structure becomes complicated but also the joint gap has a corner gap. There is a problem in that it is difficult to wire the cords for the power supply or the communication in the joint gap because it is cut off by the mounting member at the place.

An object of the present invention is to make it possible to firmly fix the floor panel and the joint cover without complicating the structure and impairing the easiness of the wiring work.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, the present invention provides a large number of floor panels formed in a rectangular shape in plan view on a floor base, and rail-shaped joist members so that a joint gap is formed between the side surfaces of adjacent floor panels. Laying vertically and horizontally through the joints, a joint cover for closing the joint gap is removably placed on the flange portion protruding laterally on the side surface of each of the adjacent floor panels, while In a double floor with an adjuster bolt for adjusting the height of the joist member at the joint gap so that the upper end surface is exposed in the joint gap, a female screw hole is formed on the upper surface of the adjuster bolt. The joint cover and the floor panel are pressed and fixed to the joist member by drilling and screwing the screw inserted into the joint cover into the female hole.

[0007]

[Operation and effect of the device]

 According to this structure, the adjuster bolt for adjusting the height of the joist member is also used as the member for fixing the joint cover and the floor panel, in other words, the adjuster bolt is used for adjusting the height of the joist member. Since it is also used for fixing the floor panel and the joint cover, it is possible to firmly fix the floor panel and the joint cover, but it is possible to reliably prevent the structure from becoming complicated. Also, the adjuster bolt is long and slender and occupies a very small volume in the corner gap, so that it does not interfere with the wiring.

Therefore, according to the present invention, the floor panel and the joint cover are firmly fixed in a rattling-free state without complicating the structure of the support device for the floor panel or impairing the ease of wiring work. Has the effect that can.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 is a floor panel having a rectangular shape in plan view, which is laid vertically and horizontally above a concrete floor base A, and reference numeral 2 is a supporting device for supporting each floor panel 1. Each is shown.

The floor panel 1 includes a lower frame body 3 formed by a metal plate in a box shape with an upward opening, and an upper frame body 3 formed by a shallow box with a downward opening in the upper and lower frame bodies. The space between 4 and 3 has a structure in which a lightweight and highly rigid reinforcement body 5 such as a honeycomb material is filled. By bending the four side plates of the upper frame body 4 described above, a U-shaped cross section is formed. The flange portion 6 is integrally formed so that a joint gap is appropriately formed between the flange portions 6 of the adjacent floor panels 1.

The supporting device 2 includes a grounding body 7 arranged in each of the corner gaps surrounded by the corners of the four floor panels 1 adjacent to each other on the floor base A, and the grounding bodies 7 adjacent to each other. And a pair of left and right rail-shaped joist members 8 extending in parallel so as to separately support the side edges of the floor panel 1 and a connecting body 9 that connects the left and right joist members 8 to each other. There is.

In the grounding body 7, a pair of left and right screw cylinders 12 connected to each other via a reinforcing member 11 are erected on the base plate 10, and the adjuster bolts 13 are respectively mounted on the left and right screw cylinders 12, 12. The left and right adjuster bolts 13 are screwed together with a lock nut 14 for fixing the adjuster bolts 13 to the screw cylinder 12, and a support nut 15 for supporting the joist member 8 is welded. On the other hand, the left and right joist members 8, 8 are formed in a C-shaped downward opening in section, and the adjuster bolt 13 is inserted from below into a through hole 16 formed in the joist member 8. ..

Further, the connecting body 9 has a pair of left and right fitting portions 9a formed in a downward U-shaped cross section so as to be detachably fitted to the left and right joist members 8, 8, and the left and right fitting portions 9a. , 9a for connecting the adjuster bolts 13 and 9a, and the left and right fitting parts 9a, 9a are formed with through holes 17 into which the adjuster bolts 13 are fitted, respectively. The connecting body 9 and the joist member 8 are integrally fastened by the combined nut 18 and support nut 15.

The left and right fitting portions 9a, 9a of the connecting body 9 are arranged at positions between the adjacent floor panels 1, and the front and rear ends of the fitting portion 9a of the connecting body 9 are connected to the floor. Positioning pieces 19 are provided so as to project upward with respect to the side edges of the panel 1 where the corners intersect. Reference numeral 21 is a main joint cover for closing the joint gap between the side surfaces of the adjacent floor panels 1. The main joint cover 21 has its left and right long side edges bent in a U-shaped cross section. Both left and right edges are placed on the flange portion 6 of the floor panel 1, and a rubber plate or the like is provided between the left and right edges of the main joint cover 21 and the flange portion 6 of the floor panel 1 for soundproofing. The elastic body 22 is inserted. An elastic plate for vibration and sound insulation may be inserted between the lower surface of the floor panel 1 and the upper surface of each joist member 8.

Reference numeral 23 is a code 23 for power supply, communication, etc. The corner gaps surrounded by the corners of the four adjacent floor panels 1 are closed by a corner joint cover 24 formed in a cross shape in plan view, and each tip of the corner joint cover 24 is closed. By pressing the pressing pieces 24a on the respective parts and fitting the pressing pieces 24a into the engaging recesses 21a formed at the ends of the main joint covers 21, the main joint covers 21 and the corners are formed. The joint cover 24 and the joint joint cover 24 are formed so as to be flush with each other. On the other hand, female screw holes 25 are formed in the upper surfaces of the adjuster bolts 13, and the joint joint cover 24 is penetrated into the female screw holes 25 of the adjuster bolts 13. By screwing the screws 26 from above, the corner joint cover 24, the four main joint covers 21 and the four floor panels 1 are pressed and fixed to the joist member 8.

On the side edge of the corner joint cover 24, a leg piece 24b that contacts the flange 6 of each floor panel 1 is formed by bending. Reference B indicates a rug such as a carpet. As described above, by screwing the screw 26 into the adjuster bolt 13, the corner joint cover 24, each main joint cover 21, and each floor panel 1 are pressed and fixed to the joist member 8 by using a fixing means. Since there is no need to provide a separate member, and since the volume of the adjuster bolt 13 occupying the corner gap is extremely small, the adjuster bolt 13 becomes an obstacle when wiring the cord 23 for power supply or communication. There is no such thing.

In this case, when the upper end of the adjuster bolt 13 is brought close to the lower surface of the corner joint cover 24 as in the embodiment, the female screw hole 25 can be easily confirmed, so that the screw 26 can be screwed in more easily. You can In addition, as shown by the alternate long and short dash line in FIG. 7, the upper end surface of the adjuster bolt 13 may be brought into contact with the lower surface of the corner joint cover 24. In this case, the screw 26 is screwed in for the corner. There is an advantage that the joint cover 24 can be prevented from flexing and deforming. In this case, the support nut 15 is a double nut and the height of the adjuster bolt 13 is adjustable so that the upper end surface of the adjuster bolt 13 is always fixed even if the floor panel 1 has a different thickness. The corner joint cover 24 may be adjusted so as to be in contact with the lower surface of the joint cover 24.

In the above embodiment, the four main joint covers 21 are pressed and fixed via the corner joint cover 24, but it is not always necessary to provide the corner joint cover 24. As shown in, the main joint cover 21 extending in one direction is overlapped with the end of the main joint cover 21 extending in one direction of the main joint covers 21 intersecting with each other, and the main joint cover 21 extending in one direction is overlapped. It is also possible to screw the end of the to the adjuster bolt 13.

It should be noted that any one of the main joint covers 21 is provided with a circular vent hole 27 for taking out the conditioned air filled between the floor base A and the floor panel 1 into the room. Are formed at appropriate intervals, and a step portion 27a is formed at the inner peripheral edge of the air vent 27 by bending the inner peripheral edge so as to form a radially inward step portion 27a. A joint 29 for guiding the air-conditioning unit 28 for dual use and a plug 30 for closing the vent hole 27 are detachably mountable.

The joint 29 is formed in a cylindrical shape so as to be freely rotatable in the ventilation hole 27, and has an ejection portion having a rectangular shape in plan view, which is fitted into the void of the air conditioning unit 28 from below at an upper end thereof. 29a is formed. Reference numeral 28 a indicates a skirting board of the air conditioning unit 28. By forming the conditioned air below the floor panel 1 into the air conditioning unit 28 through the joint 29 formed in this way, the posture of the ejection portion 29a of the joint 29 can be set arbitrarily, so that the air conditioning unit 28 can be set. Even when the width dimension of the air conditioner is smaller than the width dimension of the main joint cover 21, the air conditioning unit 28 can be installed in any posture in plan view.

The position at which the conditioned air is ejected from the air conditioning unit 28 can be set arbitrarily, and may be ejected from the part of the skirting board 28a as shown by the dotted arrow in FIG. The means for guiding the conditioned air into the joint 29 is not limited to filling the entire space between the floor base A and the floor panel 1 with conditioned air, and as shown by the alternate long and short dash line in FIG. The opening of 31 may be located on the lower surface of the main joint cover 21, and air may be supplied directly from the air conditioning duct 31 to the joint 29.

Note that FIG. 12 shows that each main joint cover 21, 24 and the floor panel 1 are pressed against the joist member 8 by screwing a screw 26 penetrating the corner joint cover 24 into the connecting body 9. It is designed to be fixed.

[Brief description of drawings]

FIG. 1 is an isolated perspective view of a double floor.

FIG. 2 is an exploded perspective view of a supporting device.

FIG. 3 is a perspective view showing a mounted state of a main joint cover.

FIG. 4 is a plan view of a double floor.

5 is a cross-sectional view taken along line VV of FIG.

6 is a sectional view taken along line VI-VI of FIG.

7 is a sectional view taken along line VII-VII in FIG.

8 is a sectional view taken along line VIII-VIII of FIG.

9 is a sectional view taken along line IX-IX of FIG.

FIG. 10 is a perspective view showing an installed state of an air conditioning unit.

FIG. 11 is a perspective view of an essential part showing another embodiment.

FIG. 12 is a view showing a device related to the present invention.

[Explanation of symbols]

 A floor base 1 floor panel 2 support device 7 grounding body 8 joist member 9 connecting body 13 adjuster bolt 21 main joint cover 24 corner joint cover 25 female screw hole 26 screw

Claims (1)

[Scope of utility model registration request] 1. A plurality of floor panels formed in a rectangular shape in a plan view are vertically and horizontally arranged on a floor base through rail-shaped joist members so that joint spaces are formed between the side surfaces of adjacent floor panels. The joint cover for closing the joint gap is detachably placed on the flange portion laterally projected on the side surface of each of the adjacent floor panels, while the joint portion of the joist member is located in the joint gap. In a double floor provided with an adjuster bolt for adjusting the height of the joist member so that its upper end surface is exposed in a joint gap, a female screw hole is formed in the upper surface of the adjuster bolt, and the female screw hole is formed. A double-floor fixing device characterized in that the joint cover and the floor panel are pressed and fixed to the joist member by screwing a screw inserted into the joint cover.