JP2002121884A - Floor joist support fittings and floor construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor joist support fittings and a floor construction which permit easy attaching of the floor joist to a slab. SOLUTION: A floor joist 10 arranged on a floor base 1 and a floor joist support fittings comprise a leg portion 31 erected on the floor base and a floor joist support fittings 40 which can be installed to the top of the leg portion 31 in a height-variable manner; the floor joint support fittings 40 come into contact with the bottom surface of the floor joist 10 and is erected from a bottom board 41 bearing the floor joist 10 and both the side portions of the bottom board and is constitutionally provided with an arm portion 45 elastically bendable outwardly and a linking claw portion 48 which is formed at the tip of the arm portion 45 and fitted to a linking groove 11 of the floor joist 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joist support and a floor structure, and more particularly, to a wooden slab which is a floor base, in which a plurality of wooden joists are arranged substantially in parallel, and a wooden flooring material is provided on the joists. And a floor structure using such a joist support.

2. Description of the Related Art As a wooden floor structure as described above, for example, there is one shown in FIG. This floor structure is a structure in which a joist 52 is supported on a concrete slab 1 by a support fitting 51 (see Japanese Patent No. 3014815).

According to this embodiment, a plurality of wooden joists 52 are arranged on a concrete slab 1 in a substantially parallel manner with a plurality of support fittings 51, and a wooden flooring material (not shown) is placed on the joists 52. Hang over and build a wooden floor structure.

In this example, as shown in FIG. 5, the joist 52 is a beam-shaped hard wooden member having a substantially rectangular cross section.
A groove 53 into which a part of the support fitting 51 is inserted is cut along the length direction at the center of the thickness of both sides of the groove 2. A threaded rod through-hole 54 is formed in the joist 52 at a position where the support fitting 51 is attached and penetrates vertically.

[0004] As shown in FIG. 5, the support bracket 51 includes a holding bracket 57 attached to the joist 52 and a screw rod 56 erected on the concrete slab 1. The holding fitting 57 and the screw rod 56 are made of stainless steel or hot dip galvanized steel.

The holding bracket 57 has a substantially C-shaped cross section, holds a bottom of the joist 52 and has a through hole 58 through which the threaded rod 56 penetrates, and a joist from the bottom plate 57a. An erecting plate portion 57b that rises along the side surface portion 52b of the member 52; and a horizontal fitting plate portion 57c that extends inward from the erecting plate portion 57b and fits into a groove 53 formed on both side surface portions 52b of the joist material 52. Are formed.

The screw bar 56 is screwed into a lower portion of the bottom plate portion 57a where the through hole 58 is opened, and the vertical position between the bottom plate portion 57a of the holding bracket 57 and the screw bar 56 is determined. An adjustable nut 59 is welded and secured.

In this embodiment, a cross groove is formed on the upper end surface 56a of the screw rod 56 as an engagement groove 60 for bit engagement of the screw rod rotation driving tool.

In this example, a mounting bracket 72 is fixedly mounted in the hole 1a of the concrete slab 1 via an epoxy adhesive 2, and the screw bar 56 is screwed into the mounting bracket 72 and mounted. And

The mounting bracket 72 has a female screw 72d on an inner surface 72c and a bottomed cylinder 7 having a bottom plate 72e.
2a, and a flange 72b which is welded and fixed to the outside of the bottomed cylinder 72a and positions the mounting bracket 72 on the upper surface of the concrete slab 1 in the height direction. The lower end surface 56 b of the screw rod 56 is attached to the mounting bracket 72.
Is screwed in so that the vertical mounting position can be adjusted.

[0010]

Here, in the above-described joist support and floor structure, the joist material is mounted and fixed horizontally on the concrete slab in the following procedure.

First, the holding metal members 57 are arranged on the joist material 52 so that the through holes 58 of the bottom plate portion 57a of the holding metal members 57 coincide with the two threaded rod through holes 54 of the joist material 52. In addition, holding metal members 57 are arranged at both ends of the joist material. The holding metal member 57 slides the holding metal member 57 from the edge of the joist material 52 along the groove 53 to a predetermined position, that is, a position where the holding metal member is positioned in a predetermined through hole.

Next, a screw rod 56 is screwed into a nut 59 attached to each holding fitting 57. Normally, it is advantageous to screw the screw rod 56 from the nut 59 side of the holding bracket 57 because the number of rotations of the screw rod required for inserting the screw rod 56 is small. At this time, the bit of the rotary tool is rotated by engaging a bit (not shown) formed in the lower end surface 56b of the screw rod 56. In addition, the holding bracket 5
The threaded rod 56 may be screwed from the threaded rod through-hole 54 side of the joist 52 to which 7 is attached.

In this embodiment, since the mounting bracket 72 is used to mount the screw rod 56 to the concrete slab 1, the mounting bracket 72 is mounted on the tip of the screw rod 56 at this stage. Next, the joists 52 are arranged on the concrete slab 1 and level adjustment is performed. The hole 1a on the concrete slab corresponding to both ends of the joist material 52 is filled with an adhesive 2 made of epoxy resin, urethane resin, or both, and the joist material 52 is placed on the concrete slab 1 at a predetermined position. , And the ends of the threaded rods 56 arranged at both ends of the joist 52 are inserted. At this time, screw rod 5
Since the mounting bracket 72 is attached to the front end of 6, the front end of the mounting bracket 72 enters the hole 1a.

From above the joist 52, the engaging groove 60 of the upper end surface 56a of the threaded rod 56 attached to both ends of the joist 52
The screw bar 56 is rotated until the flange 72b of the mounting metal comes into contact with the concrete slab 1 by rotating the bit of the rotary tool by engaging with the bit of the rotary tool. Is rotated by a finger to adjust the joist 52 to be horizontal and at a predetermined height. This adjustment needs to be performed before the adhesive 2 is cured.

As described above, in the conventional floor structure, there is a problem that mounting the joist on the slab via the joist support is troublesome and not easy.

Accordingly, an object of the present invention is to provide a joist support and a floor structure capable of easily mounting the joist on a slab.

Means for Solving the Problems In the present invention, the invention for solving the above-mentioned problems is as follows.

According to a first aspect of the present invention, there is provided a joist supporter 30 arranged on the floor base 1 and supporting the joist 10, wherein the joist 10 has a locking groove in which the joist supporter 30 is locked on both side surfaces. The joist supporting device 30 includes a leg 31 erected on the floor base and a joist supporting portion 40 variably attached to an upper portion of the leg 31.
Reference numeral 0 denotes a bottom plate 41 which abuts on the lower surface of the joist 10 to support the joist 10, an arm portion 45 which is erected from both sides of the bottom plate and can be elastically bent outward, This is a joist support tool provided with an engaging claw 48 that is formed at the distal end, fits into the locking groove 11 of the joist 10 inserted between the arms 45 from above, and locks the joist 10.

According to a second aspect of the present invention, the leg portion 31 according to the first aspect includes a base 32 mounted on a floor base and a screw rod rotatably disposed on the base 32. The joist supporting member 33 is screwed into the joist support portion 40 by the screw bar 33 and is variably arranged in height from the floor base 1.

According to a third aspect of the present invention, the leg portion 31 according to the first aspect includes a female screw member 75 embedded and fixed on the floor base 1 and a screw rod 33 screwed into the female screw member 75. The joist supporting portion 40 is a joist supporting member that is screwed into the screw bar 33 and is variably arranged in height from the floor base.

According to a fourth aspect of the present invention, the joist supporting portion 40 according to the first, second or third aspect is a joist supporting member formed of a synthetic resin.

According to a fifth aspect of the present invention, the joist supporting portion 40 according to the first, second, or third aspect is a joist supporting member formed of a metal plate.

According to a sixth aspect of the present invention, there is provided a floor structure for supporting a joist by the joist support according to the first, second, third, fourth, or fifth aspect.

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First joist support according to the first embodiment]

First, the joist support according to the first embodiment of the present invention will be described. 1 to 3 show a joist support according to the first embodiment.

In the present embodiment, the joists 10 are arranged on the floor base 1.
Is supported by a joist supporting member 30 that includes a leg 31 erected on a floor base and a joist supporting portion 40 variably mounted on an upper portion of the leg 31.

In the present embodiment, the joist supporting portion 40 includes a bottom plate 41 which contacts the lower surface of the joist 10 and supports the joist 10.
An arm 45 erected from both sides of the bottom plate and elastically bendable outward and a joist 10 formed at the tip of the arm 45 and inserted between the arms 45 from above. An engaging claw portion 48 that fits into the stop groove 11 and locks the joist 10 is provided, and is made of synthetic resin.

The joist support 30 according to the present embodiment includes a leg 31 erected on the floor base 1 and a joist support 40 mounted on the leg 31.

In this embodiment, the leg 31 comprises a base 32 made of a synthetic resin placed on the floor base 1 and a screw rod 33 rotatably arranged on the base 32.

The joist supporting portion 40 is screwed into the screw rod 33, and the height from the floor base 1 is variably arranged.

In this embodiment, as shown in FIG. 3, the joist supporting portion is provided with a threaded portion 46 having a female threaded portion 46a formed in the center of the lower surface of the bottom plate 41. Are formed.

Therefore, according to the joist support 30 according to the present embodiment, to attach the joist support 30 to the joist 10, the joist support 30 is attached to the threaded rod through hole 54 formed in the joist 10. Joist 1 with joist support 30
0 may be placed on the floor base 1. As described above, by using the joist support 30 according to the present example, the joist 10 can be easily arranged on the floor base 1. Note that reference numeral 81 in FIG.
Is a flooring material disposed on the joist 10 via a mounting bracket 83 to be hooked on the locking groove 11 of the joist 10, and 82 is a mounting groove formed on the side surface of the flooring material and mounting the bracket 83. .

[Floor Structure of Another Embodiment] In the present invention, as shown in FIG. 4, the female threaded member 75 of the leg 31 is embedded in the hole 1a on the floor base 1 as shown in FIG. After the female screw member 75 is fixed to the floor base 1, the joist support portion 40 is attached, and the joist 10 can be mounted on the joist support device 30 erected on the floor base 1. .

In each of the above examples, the joist supporting portion is made of a synthetic resin as an embodiment. However, the joist supporting portion may be made of a metal.

As described above, according to the present invention, a joist can be easily arranged on a concrete slab.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a joist support and a floor structure according to the present invention.

FIG. 2 is a sectional view showing the joist support shown in FIG. 1;

FIG. 3 is a perspective view from the back of the joist support according to the present invention.

FIG. 4 is a sectional view showing another embodiment of a joist support according to the present invention.

FIG. 5 is a perspective view showing an example of an embodiment of a conventional joist support and a floor structure.

[Description of Signs] 1 Floor base (concrete slab) 1a Hole 2 Adhesive 10 Joist 11 Lock groove 30 Joist support 31 Leg 32 Base 33 Screw rod 40 Joist support 41 Bottom plate 45 Arm 46 Screw 46a Female thread part 48 Engagement claw part 49 Rib 51 Support metal part 52 Junk material 52b Side part 54 Screw rod through hole 56 Screw rod 56a Upper end surface 56b Lower end surface 57 Holding metal part 57a Bottom plate part 57b Standing plate part 57c Horizontal fitting plate part 58 penetration Hole 59 Nut 60 Engagement groove 72 Mounting bracket 72a Bottomed cylinder 72b Collar 72c Inner surface 72e Bottom plate 75 Female screw member

Claims (6)

[Claims] 1. A joist supporter (30) arranged on a floor base (1) for supporting a joist (10), wherein the joist (10) is locked on both sides. It has a locking groove (11), and a joist support (30) is attached to a leg (31) erected on the floor base (1) and variably attached to an upper portion of the leg (31). ,
A joist supporting portion (40), the joist supporting portion (40) being in contact with the lower surface of the joist (10) and supporting the joist (10), and standing from both sides of the bottom plate. An arm (45) that is provided and that can elastically bend outward, and formed at the tip of the arm (45);
The joist (1) inserted between the arms (45) from above
A joist support having an engaging claw (48) that fits into the locking groove (11) of (0) and locks the joist (10). 2. The leg (31) comprises a base (32) mounted on a floor base, and a screw rod (33) rotatably disposed on the base (32). The joist support according to claim 1, wherein the joist support (40) is screwed into the threaded rod (33) and variably arranged in height from the floor base (1). 3. The leg (31) comprises a female screw member (75) embedded and fixed on the floor base (1) and a screw rod (33) screwed into the female screw member (75). The joist support according to claim 1, wherein the joist support (40) is screwed into the screw rod (33) and is variably arranged in height from a floor base. 4. The joist supporting device according to claim 1, wherein said joist supporting portion (40) is formed of a synthetic resin. 5. The joist supporting device according to claim 1, wherein the joist supporting portion (40) is formed of a metal plate. 6. A floor structure for supporting a joist with the joist supporting device according to claim 1, 2, 3, 4, or 5.