JP3650020B2 - Joist support and floor structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a joist support and a floor structure, and in particular, a plurality of wooden joists are arranged substantially in parallel on a concrete slab, which is a floor base, and a wooden flooring material is laid over the joists. The present invention relates to a joist support configured and a floor structure using such joist support.
[Prior art]
An example of the wooden floor structure as described above is shown in FIG. This floor structure is a structure in which the joist member 52 is supported on the concrete slab 1 by the support bracket 51 (see Japanese Patent No. 3014815).
[0002]
According to this example, a plurality of wooden joists 52 are arranged substantially in parallel on the concrete slab 1 with a plurality of support fittings 51, and wooden flooring materials (not shown) are spanned over the joists 52, Build a wooden floor structure.
[0003]
In the present example, the joist member 52 is a beam-like hard wooden member having a substantially rectangular cross section, as shown in FIG. The groove 53 to be formed is cut along the length direction. A threaded rod through hole 54 is formed in the joist member 52 at a position where the support fitting 51 is attached, penetrating in the vertical direction.
[0004]
As shown in FIG. 5, the support fitting 51 includes a holding fitting 57 attached to the joist member 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.
[0005]
The holding metal 57 has a substantially C-shaped cross section, holds the bottom of the joist member 52 and has a bottom plate portion 57a in which a through hole 58 through which the screw rod 56 passes is formed. A standing plate portion 57b that rises along the side surface portion 52b and a horizontal insertion plate portion 57c that extends inward from the standing plate portion 57b and fits into the groove portions 53 formed on both side surface portions 52b of the joist member 52 are formed. Is done.
[0006]
Further, the screw rod 56 is screwed into the lower portion of the bottom plate portion 57a where the through hole 58 is opened, so that the vertical position between the bottom plate portion 57a of the holding bracket 57 and the screw rod 56 can be adjusted. A nut 59 is welded and fixed.
[0007]
In this example, 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 rotary drive tool.
[0008]
In this example, the mounting bracket 72 is fixedly disposed in the hole 1a of the concrete slab 1 via the epoxy adhesive 2, and the screw rod 56 is screwed into the mounting bracket 72 for mounting.
[0009]
The mounting bracket 72 is formed by forming a female screw 72d on the inner surface 72c and welded and fixed to the bottomed cylinder 72a having a bottom plate 72e and the outside of the bottomed cylinder 72a. It consists of a flange 72b positioned in the height direction on the upper surface. The lower end surface 56b of the screw rod 56 is screwed into the mounting bracket 72 so that the vertical mounting position can be adjusted.
[0010]
[Problems to be solved by the invention]
Here, in the joist support and floor structure described above, the joists are mounted and fixed horizontally on the concrete slab in the following procedure.
[0011]
First, the holding fitting 57 is arranged on the joist member 52 so that the through holes 58 of the bottom plate portion 57 a of the holding fitting 57 coincide with the two screw rod through holes 54 of the joist member 52. Moreover, the holding | maintenance metal fitting 57 is arrange | positioned also at the both ends of a joist. The holding fitting 57 slides the holding fitting 57 from the edge of the joist member 52 along the groove 53 to a predetermined position, that is, a position where the holding fitting is located in a predetermined through hole.
[0012]
Next, the screw rod 56 is screwed into the nut 59 attached to each holding bracket 57. In general, it is advantageous to screw the screw rod 56 from the nut 59 side of the holding metal fitting 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 engaged with an engagement groove (not shown) formed in the lower end surface 56b of the screw rod 56 and rotated. Alternatively, the screw rod 56 may be screwed from the screw rod through hole 54 side of the joist member 52 to which the holding metal fitting 57 is attached.
[0013]
In this example, the mounting bracket 72 is used to mount the screw rod 56 to the concrete slab 1, so the mounting bracket 72 is attached to the tip of the screw rod 56 at this stage.
Next, the joist 52 is placed on the concrete slab 1 and leveling is performed.
A hole 1a on the concrete slab at a location corresponding to both ends of the joist member 52 is filled with an adhesive 2 made of epoxy resin, urethane resin, or the like, and the joist member 52 is fixed on the concrete slab 1. The tip of the screw rod 56 arranged at both ends of the joist member 52 is inserted. At this time, since the mounting bracket 72 is attached to the tip of the screw rod 56, the tip of the mounting bracket 72 enters the hole 1a.
[0014]
By engaging the bit of the rotary tool with the engaging groove 60 of the upper end surface 56a of the screw rod 56 attached to both ends of the joist member 52 from above the joist member 52, the flange portion 72b of the attachment fitting is rotated. After rotating the screw rod 56 until it contacts the concrete slab 1, the mounting bracket 72 attached to the lower portion of the screw rod 56 is rotated with a finger so that the joist member 52 is adjusted horizontally and at a predetermined height. . This adjustment needs to be performed before the adhesive 2 is cured.
[0015]
As described above, in the conventional floor structure, there is a problem that it is not easy to attach the joist on the slab via the joist support.
[0016]
Then, an object of this invention is to provide the joist support and floor structure which can attach a joist on a slab easily.
[Means for Solving the Problems]
In the present invention, the invention for solving the above problems is as follows.
[0017]
The invention according to claim 1 is the joist support 30 that is disposed on the floor base 1 and supports the joists 10, and the joists 10 are provided with locking grooves 11 in which the joists support 30 is locked on both sides. The joist support tool 30 includes a leg portion 31 standing on the floor base and a joist support portion 40 attached to the upper portion of the leg portion 31 so as to be variable in height. A bottom plate 41 that abuts the bottom surface of the joist 10 and supports the joist 10, an arm portion 45 that is erected from both sides of the base plate and elastically bends outward, and is formed at the tip of the arm portion 45. A joist support tool provided with an engaging claw portion 48 that engages with the engaging groove 11 of the joist 10 inserted between the arm portions 45 from above and locks the joist 10.
[0018]
According to a second aspect of the present invention, the leg portion 31 according to the first aspect includes a base 32 placed on the floor base and a screw rod 33 rotatably arranged on the base 32. Thus, the joist support part 40 is a joist support tool that is screwed into the screw rod 33 and has a variable height from the floor base 1.
[0019]
The invention according to claim 3 is the leg portion 31 according to claim 1, comprising 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 part 40 is a joist support that is screwed into the screw rod 33 and is variably arranged from the floor base.
[0020]
According to a fourth aspect of the present invention, the joist support part 40 according to the first, second, or third aspect is a joist support formed of a synthetic resin.
[0021]
In the invention described in claim 5, the joist support portion 40 described in claim 1, 2, or 3 is a joist support formed of a metal plate.
[0022]
Invention of Claim 6 is a floor structure which supports a joist with the joist support tool of the claim 1, the claim 2, the claim 3, the claim 4, or the claim 5.
DETAILED DESCRIPTION OF THE INVENTION
[A joist support according to the first embodiment]
[0023]
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 a first embodiment.
[0024]
In this example, the joist support 30 that is disposed on the floor base 1 and supports the joists 10 is a leg 31 that is erected on the floor base, and a joist that is attached to the upper portion of the leg 31 so as to be variable in height. It consists of the support part 40.
[0025]
In this example, the joist support portion 40 is in contact with the lower surface of the joist 10 to support the joist 10 and an arm portion 45 that is erected from both side portions of the base plate and is elastically curved outward. And an engaging claw portion 48 that is formed at the distal end of the arm portion 45 and fits into the locking groove 11 of the joist 10 inserted between the arm portions 45 from above and locks the joist 10. It is made of synthetic resin.
[0026]
The joist support tool 30 according to the present example includes a leg portion 31 erected on the floor base 1 and a joist support portion 40 attached on the leg portion 31.
[0027]
In this example, the leg portion 31 includes a synthetic resin base 32 placed on the floor base 1 and a screw rod 33 rotatably disposed on the base 32.
[0028]
The joist support portion 40 is screwed into the screw rod 33 and is variably arranged from the floor base 1.
[0029]
In the present example, the joist support portion is provided with a screw portion 46 having a female screw portion 46a formed at the center of the lower surface of the bottom plate 41 as shown in FIG. Is formed.
[0030]
Therefore, according to the joist support tool 30 according to the present example, in order to attach the joist support tool 30 to the joists 10, the joist support tool 30 is attached to the screw rod through hole 54 provided in the joist 10 and the joist support tool is installed. The joists 10 to which 30 is attached may be placed on the floor base 1. Thus, if the joist support tool 30 according to the present example is used, the joist 10 can be easily arranged on the floor base 1. In FIG. 1, reference numeral 81 is a flooring material disposed on the joist 10 via an attachment fitting 83 hooked in the locking groove 11 of the joist 10, and 82 is formed on a side surface of the flooring material, and the fitting 83 is attached thereto. A mounting groove is shown.
[0031]
[Floor structures of other embodiments]
In the present invention, as shown in FIG. 4, the leg portion 31 is formed by embedding the female screw member 75 of the leg portion 31 in the hole 1 a on the floor base 1 and fixing it with the adhesive 74. Can be attached to the floor support 1 and the joist 10 can be attached to the joist support 30 erected on the floor base 1.
[0032]
In each of the above examples, the joist support portion made of a synthetic resin has been described as an embodiment. However, the joist support portion can be made of a metal.
【The invention's effect】
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 floor structure according to the present invention.
2 is a cross-sectional view showing the joist support shown in FIG. 1. FIG.
FIG. 3 is a perspective view from the back of the joist support according to the present invention.
FIG. 4 is a cross-sectional view showing another embodiment of the 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 floor structure.
[Explanation of symbols]
1 Floor base (concrete slab)
1a Hole 2 Adhesive 10 joist 11 locking groove 30 joist support 31 leg 32 base 33 screw rod 40 joist support 41 bottom plate 45 arm 46 screw 46a female screw 48 engaging claw 49 rib 51 support fitting 52 joist material 52b side face 54 screw rod through hole 56 screw rod 56a upper end surface 56b lower end surface 57 holding metal fitting 57a bottom plate portion 57b upright plate portion 57c horizontal fitting plate portion 58 through hole 59 nut 60 engaging groove 72 mounting bracket 72a provided Bottom cylinder 72b collar 72c inner surface 72e bottom plate 75 female thread member

Claims (6)

In the joist support (30) arranged on the floor base (1) and supporting the joist (10),
The joist (10) includes a locking groove (11) on both sides of which the joist support (30) is locked,
The joist support (30) includes a leg (31) standing on the floor base (1),
It consists of a joist support part (40) attached to the upper part of this leg part (31) variably,
The joist support portion (40) is provided on the bottom plate (41) that contacts the lower surface of the joist (10) and supports the joist (10), and is erected from both sides of the base plate and elastically curved outward. Fits into a possible arm part (45) and a locking groove (11) of the joist (10) formed between the arm part (45) from above and formed at the tip of the arm part (45) An engaging claw portion (48) for locking the joist (10);
Joist support with The leg portion (31) includes a base (32) placed on the floor base and a screw rod (33) rotatably arranged on the base (32).
The joist support tool according to claim 1, wherein the joist support portion (40) is screwed into the screw rod (33), and the height from the floor base (1) is variably arranged. The leg portion (31) 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 support tool according to claim 1, wherein the joist support portion (40) is screwed into the screw rod (33) and is variably disposed at a height from the floor base. The joist support part according to claim 1, 2, or 3, wherein the joist support part (40) is formed of a synthetic resin. The joist support part according to claim 1, 2, or 3, wherein the joist support part (40) is formed of a metal plate. A floor structure for supporting a joist with the joist support according to claim 1, claim 2, claim 3, claim 4, or claim 5.

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