JPH0685841U - Joist unit - Google Patents

Abstract

(57) [Summary] [Purpose] In the floor laying method, the supporting legs of joist unit are surely arranged at the connection part of each floor panel, and each floor panel can be supported with sufficient supporting strength, and the supporting legs per unit length. It is possible to reduce the number of floors and the construction cost, to easily perform the joist installation work, and to adjust the floor level height easily.
Moreover, a joist unit is provided which solves the problem of floor squeaking noise in an apartment house or the like. [Structure] A single leg joist unit 3 in which one supporting leg 9 is attached to the joist members 5 and 5a so as to be adjustable in height and a multi-leg joist unit 4 in which two supporting legs are attached are combined. Double-sided adhesive tape is attached to one side of each joist unit, and the single leg joist unit is alternately arranged along the wall or partition 2 so that each floor panel 15 is connected to the joint part.
Fix it. One edge of the floor panel is placed and fixed on each joist unit, and the other edge is placed and fixed on the unit support leg 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joist unit, particularly in an apartment building, etc., a dry type double floor constructed by forming a space between a square and / or rectangular floor panel and an existing foundation floor using unit support legs. The joist unit used for the construction of.

[0002]

[Prior art]

 The double floor is designed to support a plurality of floor panels (floor boards) made of wood-based, metal-based, concrete-based, calcium silicate-based materials, etc. at a fixed height above the foundation floor with support legs. The space between the existing floor surface and the double floor has been constructed, and the space for passing various pipes such as water supply and drainage pipes, gas pipes, the space for passing electrical and communication wiring, and the heating and cooling systems. Space, a space for installing an air conditioning duct under the floor, a space for laying a heat insulating material or a soundproof material under the floor, and an air conditioning duct for increasing the soundproofing effect or the heat insulating effect. It's being used.

The applicant uses a combination of a unit support leg group including a rod-shaped leg portion and a receiving plate mounted on the upper end portion of the rod-shaped leg portion so as to be vertically adjustable, and a fixed-length rectangular floor panel group. A dry double floor construction method has been developed and a patent application has already been filed (Japanese Patent Laid-Open No. 173748/1993). In this method, the unit support legs are arranged on the floor surface of the foundation floor at a predetermined pitch, and the floor panels arranged with a predetermined gap are provided at the predetermined positions on the edges and the longitudinal centerline of the unit support legs. According to this method, the floor panel can be laid relatively easily and efficiently. Further, the above-mentioned publication also discloses a joist construction method using a joist unit having vertically adjustable support legs at at least two positions of a horizontally long joist. The use of such a joist unit has the advantages that the mounting work is easy and the height can be adjusted.

In the dry floor construction method disclosed in Japanese Patent Laid-Open No. 3-17348, first, as shown in FIG. 7 which partially shows the planar layout, first, the room wall or the partition 101 is set to a predetermined height. A joist unit 102 is provided along the floor, and one side of the floor panel 104 is supported on the joist unit 102. The other edge of the floor panel 104, which is not placed on the joist unit 102, is placed on the concrete slab (lower floor) at a pitch of about 450 mm with the unit support leg 105 that can be adjusted up and down in a cantilevered state. Install. The unit support leg 105 and the floor panel 104 are attached via an adhesive sheet or the like adhered to the upper surface of the receiving plate 106 of the unit support leg 105. Similarly, the adjacent floor panels 104 are also mounted on the already installed unit support legs 105 with a predetermined space allowing the level of the floor panels to be adjusted, and the other unit support legs are similarly arranged and attached. This procedure is repeated for each floor panel, and in areas such as the corners of the room where a standard floor panel does not fit, the standard panel is processed, the dimensions are adjusted, and the unit support legs 105 are arranged as appropriate to provide a floor panel. Fill the entire surface with le 104. After that, if necessary, a throwing plywood (not shown) is laid to cover all floor panels as a floor base.

[0005]

[Problems to be solved by the device]

 In the above dry floor construction method, the slender joist unit 102 having a constant length is used. However, in order to support the floor panel 104 with sufficient supporting strength, when the end surfaces of the joist units 102 are placed in contact with each other. Since the sizes of the rooms to be constructed are not the same, it is usual that the joist unit is too long or not long enough at the corners of the room. Therefore, the joist unit placed in the corner of the room needs to be cut and processed according to the dimensions, which is a problem in terms of workability. In addition, the number of supporting legs of joist unit per unit length also increases, and the cost of the supporting leg part of one joist unit is large, which causes a problem of high cost. Due to such a problem, generally, each joist unit 102 is arranged along the wall or partition 101 of the room with a space as shown in FIG. 7, but in this case, the joist is connected to the connection part of each floor panel 104. A portion B where the supporting leg 103 of the unit 102 is not arranged is generated. In this way, the supporting strength becomes weak at the portion B where the supporting leg portions 103 of the joist unit 102 are not arranged at the connecting portion of each floor panel 104, and the floor surface is subjected to a load such as when walking or when a child jumps up and down. There is a problem that the floor bends and makes a squeaking noise, and the floor sinks when heavy furniture is placed.

Therefore, the object of the present invention is to solve the above-mentioned problems, and the supporting legs of the joist unit are surely arranged at the connecting portion of each floor panel, and the edge portion of each floor panel is supported with sufficient supporting strength. The purpose of the present invention is to provide a joist unit that can support the construction and can reduce the number of supporting legs per unit length, thus reducing the construction cost. It is another object of the present invention to provide a joist unit that can be easily installed, the height of the floor level can be easily adjusted, and the height can be adjusted even after the joists are once fixed to a wall or a partition. To provide. Still another object of the present invention is that there is no problem that a person walks on the floor and a squeak noise is generated even when a load is applied, and it is possible to block the transmission of the floor impact sound through the wall. , To provide a joist unit that can significantly eliminate the problem of sound in apartment buildings.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, a joist unit used for construction of a dry double floor for laying a floor panel using a combination of a unit support leg group and a square and / or rectangular floor panel group. In the above, there is a cross-section rectangular joist member of a predetermined length having a through hole in the center, and a support nut that has a laterally expanded support portion at the lower end and is fitted into the through hole of the joist member. , A single leg joist unit having at least an upper threaded portion and an elastic pedestal at the lower end, and the upper leg threaded to the support nut, and a single leg joist unit; A joist member having a rectangular cross-section, which is longer than the joist member of the unit and has at least two parallel through-holes at a predetermined interval, and a support portion laterally expanded at the lower end portion. Less fit into the through hole of the member Also has two support nuts, at least an upper threaded part and an elastic pedestal at the lower end, and the upper threaded part is at least two support legs screwed onto the support nut. A joist unit consisting of a leg joist unit is provided. In a preferred embodiment, a double-sided adhesive tape is attached to one side surface of each joist member of the single leg joist unit and the multi-leg joist unit for use.

[0008]

[Function of the device]

 Since the joist unit of the present invention comprises a combination of a short single leg joist unit and a long multi-leg joist unit as described above, by using these in combination, a single leg joist unit is provided at each floor panel connection portion. The supporting legs of the monopod joist unit can be securely arranged, and the edge of each floor panel can be supported with sufficient supporting strength. Therefore, the bending of the edge of the floor panel when a load is applied during walking etc. It is possible to significantly reduce the occurrence of sunk sound and squeaking noise, and to reduce the number of supporting legs per unit length, which reduces the construction cost. In addition, the support leg of each joist unit is screwed into the support nut fitted in the through hole of the joist member, and the height of the joist member can be adjusted by rotating the support leg. By attaching the double-sided adhesive tape to one side of the joist member of each joist unit, each joist unit can be easily fixed to the wall or partition. In addition, even after fixing the joist member to the wall or partition in this way, the height can be finely adjusted, and further, a double-sided adhesive tape functioning as a cushioning material is interposed between the joist member and the wall or partition. As a result, it is possible to further reduce the bending and squeaking noises of the floor panel, and it is also possible to block the propagation of floor impact noise and vibration from the wall.

[0009]

【Example】

 Hereinafter, the present invention will be described more specifically with reference to the embodiments illustrated in the accompanying drawings. FIG. 1 shows a state in which joist construction is performed using joist units 3 and 4 of the present invention, and then each floor panel 15 is further laid by using unit support legs 16, as seen from arrows AA in FIG. It corresponds to the view seen from the direction. The joist unit is a combination of the single leg joist unit 3 shown in FIG. 2 and the multi-leg joist unit 4 shown in FIG.

The single leg joist unit 3 shown in FIG. 2 has a joist member 5 having a rectangular cross section and having a through hole 6 in the center thereof, and a supporting portion 8 which is laterally expanded at the lower end. It is composed of a support nut 7 and a support leg 9. The support leg 9 is composed of a support bolt 10 having a lower end portion rotatably planted on an elastic pedestal 11 made of rubber or the like and a minus groove 12 (may be a plus groove or a polygonal concave portion) provided on the upper end surface. ing. The single leg joist unit 3 is assembled by screwing the support bolt 10 of the support leg 9 into the support nut 7 fitted and fixed in the through hole 6 of the joist member 5, and the upper end surface of the support bolt 10 is secured. The height of the joist member 5 can be adjusted by fitting the tip of a rotating tool such as a screwdriver into the minor groove 12 and rotating the support bolt 10. In the illustrated embodiment, the threaded portion is formed over substantially the entire length of the support bolt 10 in the portion projecting from the elastic pedestal 11, but only the upper half of the support bolt 10 is provided in accordance with a predetermined floor level. It may be configured such that a screw portion is formed on the. FIG. 3 shows an example of a multi-leg joist unit, and the multi-leg joist unit 4 of this embodiment has two support legs 9. That is, the support legs are respectively attached to the support nuts 7 fitted in the two parallel through holes 6a and 6b formed in the vicinity of both ends of the joist member 5a longer than the joist member 5 of the single leg joist unit 3. Except for the fact that the support bolts 10 of 9 are screwed together, the other details are the same as the single leg joist unit 3. Note that the length of the joist member 5a may be changed according to the length of the floor panel, and three or more support legs may be provided accordingly.

When constructing joists, first, as shown in FIGS. 4 and 5, one side of the single leg joist unit 3 and the multi-leg joist unit 4 pre-adjusted to correspond to a predetermined floor level. The double-sided pressure-sensitive adhesive tape 13 having the pressure-sensitive adhesive layer formed on both sides of the cushioning material is attached to the section, so that the single leg joist unit 3 is arranged at the connecting portion (gap) between the floor panels 15. Are alternately arranged along the wall or partition 2, and the single leg joist unit 3 and the plurality of leg joist units 4 are fixed to the wall or partition 2 by the double-sided adhesive tape 13. In this way, one side of the floor panel 15 is placed on each joist unit 3, 4 provided at a predetermined height along the wall of the room or the partition 2. The other edges of the floor panel 15 that cannot be placed on the joist units 3 and 4 are provided on the unit support legs 16 arranged at a predetermined pitch on the floor surface of the foundation floor 1 such as a concrete slab. Put it on and attach it. The unit support leg 16 and the floor panel 15 are attached to each other via the adhesive sheet 25 or the like adhered to the upper surface of the receiving plate 24 of the unit support leg 16. With the floor panel 15 placed and supported as described above, the tip of a rotating tool such as a screwdriver is fitted into the minus groove 12 on the upper end surface of the support bolt 10 of each joist unit 3 and 4, if necessary, to support the support bolt. Rotate the toe 10 to finely adjust the floor level height. Since the cushioning material of the base material of the double-sided adhesive tape 13 that fixes each joist unit 3 and 4 to the wall or partition 2 has elasticity (cushioning property), each joist unit 3 and 4 is separated from the wall or partition. It is possible to adjust the height to some extent even when it is fixed to 2. After the height is adjusted in this way, the edge of the floor panel 15 is fixed to the joist members 5 and 5a of the joist units 3 and 4 by the nail 14 (a screw or an adhesive may be used).

After the joist construction is completed as described above, each floor panel 15 is laid using the unit support legs 16. An example of a suitable unit support leg 16 is shown in FIG. As shown in FIG. 6, the unit support leg 16 has a lower end rotatably inserted into a non-through hole (not shown) formed in the center of an anti-vibration base 18 made of an elastic material such as rubber. , A rod-shaped leg portion 17 made up of support bolts 19 standing upright with the flange portion 21 as a support portion, a level adjusting nut 22 having an annular support portion 23 protruding from the lower end of the outer periphery, and a level adjusting nut 22 at the central portion. It is composed of a receiving plate 24 having an insertion hole 26 and having an adhesive sheet 25 adhered to the upper surface thereof. The level adjusting nut 22 is fitted and attached to the insertion hole 26 formed in the receiving plate 24, or a ring-shaped adhesive sheet (not shown) is further attached to the upper surface of the support portion 23, and the nut It is attached by adhering to the lower surface around the insertion hole 26 of the receiving plate 24. In this way, the support bolt 19 of the rod-shaped leg portion 17 is screwed into the level adjusting nut 22 fitted and fixed in the insertion hole 26 of the receiving plate 24, so that the unit support leg 16 excellent in vibration-proof and sound-proof function is obtained. Can be assembled. A minor groove 20 (a plus groove or a polygonal recess may be provided) is provided on the upper end surface of the support bolt 19, and the tip of a rotary tool such as a driver is fitted into the groove 20 to support the support bolt. By rotating 19 the level adjusting nut 22 and the receiving plate 24 into which it is fitted move up and down, and the floor level of the floor panel supported by the receiving plate 24 can be adjusted. At the time of use, the release paper (not shown) on the upper surface of the adhesive sheet 25 is peeled off and used.

As shown in FIGS. 4 and 5, one end edge is fixed to the upper surface of each joist unit 3, 4 and the other end edge of the floor panel 15 is a unit support leg 16 arranged at a predetermined pitch. The unit support leg 16 is placed in a cantilevered state and fixed by the adhesive sheet 25 on the upper surface of the receiving plate 24 of the unit supporting leg 16. The insertion hole 26 of the receiving plate 24 of the unit supporting leg 16 has an edge portion of the floor panel 15. From the exposed state, the support bolt 19 is turned through the insertion hole 26 by a screwdriver or the like to adjust the level of the floor panel 15 (upper surface position of the receiving plate 24). Similarly, the adjacent floor panels are also mounted on the already installed unit support legs 16 with a predetermined gap allowing the level of the floor panel 15 to be adjusted, and the other unit support legs are similarly arranged and attached. Repeating this work for each floor panel, in a narrow space such as a corner of a room where a standard floor panel does not fit, after installing joist units 3 and 4, process the standard plate, adjust the dimensions, and adjust the unit appropriately. The support legs 16 are arranged and the floor panel 15 is laid. After that, if necessary, a throwing plywood is stretched, or an elongated embedding member of a size that fits the gap is fitted in the gap between the floor panels, or a thin sheet-like gap cover material is used between the floor panels. After covering the gap, a floor finishing material such as carpet, CF sheet, tatami mat is laid.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various design changes can be made. For example, when a long floor panel is used, the length of the joist member 5a of the multi-leg joist unit 4 is increased to make the number of the support legs 9 three or more, or between the single leg joist units. It is also possible to place two multi-legged joist units in the. Further, even after all floor panels have been laid, the through holes 6 of the single leg joist unit 3 and the insertion holes 26 of the receiving plate 24 of the unit supporting legs 16 arranged at the connection portion between the floor panels. Since is exposed, the floor level can be finally adjusted. Furthermore, the floor panels 15 can be arranged not only in a grid pattern as shown in FIG. 4 but also in a staggered pattern.

[0015]

[Effect of device]

 As is clear from the above description, according to the present invention, the following effects and advantages can be obtained. (1) Since the joist unit of the present invention is composed of a combination of a short single leg joist unit and a long plural leg joist unit as described above, by using these in combination, the connecting portion of each floor panel The supporting legs of the single leg joist unit can be securely arranged at the location, and the edge of each floor panel can be supported with sufficient supporting strength. Therefore, the edge of the floor panel when applying a load during walking, etc. The bending and sinking of parts and the squeaking noise can be greatly reduced, and the number of supporting legs per unit length can be reduced to reduce the construction cost. (2) The support leg of each joist unit is screwed into the support nut fitted into the through hole of the joist member, and the height of the joist member can be adjusted by rotating the support leg. Even after fixing the joist unit to the wall or partition, its height can be finely adjusted. (3) By attaching the double-sided adhesive tape to one side surface of the joist member of each joist unit, each joist unit can be easily fixed to the wall or partition. Therefore, by using the joist unit of the present invention, joist construction can be simplified, workability at the construction site can be greatly improved, and the construction period and construction cost can be reduced. (4) Furthermore, each joist unit is fixed to the wall or partition by double-sided adhesive tape with cushioning and cushioning properties, reducing floor squeaking noise when a load is applied when a person walks. Also, floor impact noise and vibration can be blocked and dampened from propagating from the wall.

[Brief description of drawings]

FIG. 1 is a cutaway perspective view showing an example in which a floor panel is laid using the joist unit of the present invention.

FIG. 2 is a partially cutaway perspective view of a single leg joist unit of the present invention.

FIG. 3 is a partially cutaway perspective view of a multi-legged joist unit of the present invention.

FIG. 4 is a plan view showing an arrangement example of a single leg joist unit, a multi-leg joist unit and a floor panel according to the present invention.

FIG. 5 is a vertical cross-sectional view showing a mounting state of a joist unit and a floor panel of the present invention.

FIG. 6 is an exploded perspective view of a unit support leg.

FIG. 7 is a plan view showing an arrangement state of a conventional joist unit and a floor panel.

[Explanation of symbols]

1 foundation floor, 2 walls or partitions, 3 single leg joist unit, 4 multiple leg joist unit, 5,5a joist member, 6,6a, 6b through hole, 7 support nut, 8 support part, 9 support leg, 10 support Bolt, 11 Elastic pedestal, 12 Slotted groove, 13
Double-sided adhesive tape, 14 nails, 15 floor panel, 1
6 unit support legs, 17 rod-shaped legs, 24 support plates, 25 adhesive sheets

Claims (2)

[Scope of utility model registration request] 1. A joist unit used in the construction of a dry double floor in which a floor panel is laid by using a combination of a unit support leg group and a square and / or rectangular floor panel group, and a through hole is provided in a central portion thereof. A joist member having a rectangular cross section of a predetermined length, a support portion laterally expanded at the lower end portion, a support nut fitted into the through hole of the joist member, and a threaded portion formed at least on the upper portion. A single leg joist unit having an elastic pedestal at the lower end and an upper threaded portion that is screwed to the support nut, and a predetermined length longer than the joist member of the single leg joist unit. At least two joist members having a rectangular cross-section having at least two parallel through-holes spaced apart from each other and a support portion laterally expanded at the lower end portion, and fitted into the through-holes of the joist member. Support nut and at least above A joist unit formed of a combination of a multi-leg joist unit having a threaded portion formed at the end, an elastic pedestal at the lower end, and an upper threaded portion having at least two support legs screwed into the support nut. . 2. The joist unit according to claim 1, wherein a double-sided adhesive tape is attached to one side surface of each joist member of the single leg joist unit and the multi-leg joist unit.