JP3477407B2 - Fixtures and floor structures for joists and flooring - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for fixing joists and flooring (also called flooring) and a floor structure using the fixture.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7 to FIG. 9 as a fixing metal fitting and a floor structure of this type (Patent No. 2)
877794). The floor structure 31 includes a support member 33 that is erected on a concrete slab 32 that is placed outdoors, joists 34 that are spaced apart and substantially parallel to the support member 33, and the joists. 34, a plurality of flooring materials 36 laid in a direction substantially orthogonal to each other and spaced apart from each other and provided with a notch groove portion 35 at substantially central portions of the respective plate thicknesses in the longitudinal direction, and the flooring material 36. And a fixing member 37 for fixing (coupling) to the.

The fixing metal fitting 37 is made of a joist material 34.
Of the flooring material 36 that extends along the longitudinal direction of the flooring material and is attached to the upper side of the joist material 34, and the length dimension along the joist material 34 is larger than half the width dimension of the flooring material 36 disposed on the joist material. An extended portion 38, and an upright plate portion 39 which is provided upright from one end of the extended portion 38 and is provided upright between two flooring members 36 arranged adjacent to each other. ,
An engaging plate portion 41 extending in both directions from the upper end portion of the standing plate portion 39 and fitted into the groove portion 35 formed along the longitudinal direction on the side surface portion 40 of the flooring material 36 is provided. .

The fixing member 37 can be manufactured by extruding an aluminum alloy, the cost can be reduced, and the joist 34 and the flooring material 36 can be easily and reliably connected and fixed.

[0005]

However, in the above-mentioned prior art, since the fixing metal fitting 37 is an extruded mold material made of aluminum alloy, vertical and horizontal loads act on the base portion of the standing plate portion 39 so that it is easily broken. There is a problem in strength. Further, although the fixing metal fitting 37 can be easily positioned with respect to the flooring material 36, the positioning with respect to the joist 34 is extremely troublesome, and there is a problem in workability of laying the flooring material 36.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to secure necessary and sufficient strength to enhance rigidity. It is an object of the present invention to provide a fixing member and a floor structure for a joist material and a floor material, which are easily positioned with respect to each other and have good mounting workability.

[0007]

In order to achieve the above object, the present invention takes the following technical means. That is,
The fixing member of the joist material and the floor material according to the present invention is a floor material having grooves formed on both side surfaces in the width direction along the longitudinal direction on a plurality of joist materials arranged substantially in parallel at required intervals. Is a fixing metal fitting that is laid in a plurality in a direction substantially orthogonal to the joist using the groove portion, and two metal fitting members that are bent and formed into a substantially U shape or a key shape are welded by butting each other back to back. Sectional work or rail shape by jointing and unifying, the upper pieces of both metal fittings are used as locking parts to the floor material, and the lower pieces of both metal fittings are used as attachment parts to joist. Is characterized by.

In this case, both metal fitting members can be formed by cutting a steel material, for example, a stainless steel plate, into a required shape and bending it by pressing or the like. By doing so, they can be connected and integrated. With such a structure, a structure in which a portion that rises from the attachment portion to the locking portion, that is, a rising portion has a two-piece structure, can increase the rigidity of the fixing metal fitting and secure necessary and sufficient strength. Further, in the fixing bracket for joist and flooring material according to the present invention, positioning pieces that abut on both side surfaces in the width direction of the joisting material are attached to the mounting portions of the metal fitting members in the longitudinal direction of the flooring material (width direction of the joisting material. ) Is bent downward at at least one of the diagonal positions corresponding to (1).

In this case, both metal fitting members are provided with the positioning pieces when the steel material, for example, a stainless steel plate is cut into a required shape, and are bent and formed by pressing or the like.
The positioning piece can be easily integrally formed. ADVANTAGE OF THE INVENTION According to the fixing metal fitting which concerns on this invention, while fixing the width direction with respect to a joist material easily and correctly, when fixing the said attachment part to a joist material with a screw (tapping screw), a fixing metal fitting is used. The positioning piece can prevent the joist from co-rotating with the screw, thereby improving the workability and workability of attaching the fixing fitting.

Further, the floor structure according to the present invention is a floor material having groove portions formed on both side surfaces in the width direction along the longitudinal direction on a plurality of joists arranged substantially in parallel at required intervals. ,
A floor structure in which a plurality of laying is performed by using the groove in the direction substantially orthogonal to the joist by the fixing metal fitting, wherein the fixing metal fitting is a metal fitting member formed in a substantially U-shape or a key-shape,
Two pieces are butt-backed to each other and joined together by welding to form a cross-section work piece or a rail shape. The upper pieces of both metal fitting members are used as locking portions to the floor material, and the lower pieces of both metal fitting members are joists. It is characterized by being a mounting part to.

Also in this floor structure, both metal fitting members can be formed by cutting a steel material, for example, a stainless steel plate, into a required shape and bending it by a press or the like. It can be connected and integrated by spot welding. With such a configuration, the portion that rises from the mounting portion to the locking portion, that is, the rising portion has a two-piece structure, and the rigidity of the fixing fitting can be increased and necessary and sufficient strength can be secured. Therefore,
The rigidity of the floor structure is increased, and stability and durability can be improved.

Further, in the floor structure according to the present invention, at the mounting portions of the both metal fitting members, positioning pieces abutting on both side surfaces in the width direction of the joist member are provided on at least one of the end portions corresponding to the longitudinal direction of the floor material. It is characterized in that it is bent downward at a diagonal position. According to the floor structure of the present invention, the fixing metal fittings can be easily and accurately positioned in the width direction of the joist, and when the mounting portion is fixed to the joist with a screw (tapping screw), The fixing piece can prevent the fixing metal fitting from co-rotating with the joist material together with the screw, and the workability of laying the floor material and the work efficiency can be improved.

The positioning piece may be provided with a fixing screw insertion hole for the joist member so that the fixing member can be fixed to the side surface of the joist member. Further, the floor structure according to the present invention is characterized in that one or a plurality of groove-shaped recesses extending along the longitudinal direction are provided on the upper surface of the joist material in the width direction thereof. In this case, the groove-shaped recess is provided at a position where the center of the recess corresponds to the center of the insertion hole, corresponding to the mounting screw insertion hole provided in the mounting portion of the fixing fitting.

With this structure, when the fixing metal fitting is attached to the upper surface of the joist, the tip of the tapping screw inserted into the mounting screw insertion hole fits into the groove-shaped recess, and the tapping screw is used to make a hole. The fixing metal fittings can be easily attached while doing.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show an embodiment of a fixture 1 for fixing joists and floors and a floor structure using the fixture 1 according to the present invention. As shown in FIGS. 1 to 3, the floor structure according to this embodiment is arranged on the concrete slab 2 in parallel with each other through the anchor bolts 3, the height adjusting bolts 4 and the like at a predetermined interval. A joist 5, a floor material (also called a flooring material or a deck material) 6 arranged on the joist 5 in a substantially orthogonal shape, the fixing metal fitting 1 for fixing the floor material 6 to the joist 5, and It is composed of a tapping screw 8.

The lower portion of the adjusting bolt 4 is screwed onto the upper female thread portion of the anchor bolt 3 and is tightened and fixed by a nut 9. The nut 10 is screwed onto the upper end portion of the adjusting bolt 4 and the spring washer. 11 is externally fitted, and a joist material supporting plate 12 is screwed onto it, and the joist material 5 is placed on the supporting plate 12 and connected by joist screws (tapping screws) 13. Therefore, by loosening the nuts 9 and 10 and rotating the adjusting bolt 4, the joist support plate 12 can be moved up and down with respect to the concrete slab 2 and its height can be arbitrarily adjusted.

The joist 5 is formed by bending a steel plate and has the same sectional shape as that of the grooved member with an outer collar (lip) as shown in FIG. 1. Tsuba 5
It is arranged such that a is located on the lower side, and the outer collar 5a is attached to and connected to the joist material support plate 12 by joist screws 13. And on the upper surface of the joist 5,
As shown in FIG. 1, two groove-shaped recesses 14 extending along the longitudinal direction are provided in the width direction. The groove-shaped recess 14 is provided at a position where the center of the recess 14 coincides with the center of the insertion hole 15 in correspondence with a mounting screw insertion hole 15 provided in a mounting portion 7b of the fixture 1 described later.

Therefore, when the fixing metal fitting 1 is attached to the upper surface of the joist 5, the tip of the tapping screw 8 inserted into the attaching screw insertion hole 15 fits into the groove-shaped recess 14, and the tapping screw 8 makes a hole. The fixture 1 can be easily attached while dawning. The floor material 6 is
A plate made of hard wood, which has the functions of both a strength material and a decorative material, and has a thickness of 20 to 30 mm and a width of 100 to 300 m.
The length of the groove 16 is 1.2 to 3.6 m, and the groove portions 16 (for example, the vertical dimension 2.5 mm and the depth 13 m along the longitudinal direction of the both side surfaces 6 a in the width direction thereof).
m) is formed.

A plurality of the floor materials 6 are the joist materials 5.
A floor such as a sun deck is constructed by laying parallel to each other in a direction substantially orthogonal to each other with an interval of about 4 to 7 mm. The fixing metal fitting 1 according to the present invention is made of a steel material, for example, a stainless steel plate, and as shown in FIGS. 4 to 6, two metal fitting members 7 bent in a substantially U shape (or a key shape) are placed back to back. Butt up, and the rising parts 7c, 7 that make up the back
c is welded, for example, by spot welding 17 to be integrated with each other to have a cross-section processed shape or rail shape. The upper pieces of both metal fitting members 7 are floor material locking portions 7a and 7a, and the lower pieces of both metal fitting members 7 and 7 are mounting portions 7b and 7b to the joist 5. Positioning pieces 18 that come into contact with the widthwise opposite side surfaces 5b of the joist 5 are formed in the portions 7b, 7b so as to be bent downward at at least one diagonal position of at least one end of the flooring 6 corresponding to the longitudinal direction.

The spacing between the facing surfaces of the positioning pieces 18, 18 is equal to or slightly larger than the spacing between both outer surfaces of the joist 5 or the outer width dimension. Further, when the fixing piece 1 is provided on the side opposite to the direction in which the fixing metal fitting 1 is rotated by the screw 8 when the fixing metal fitting 1 is tightened and fixed by the tapping screw 8, the fixing metal fitting 1 is connected to the screw 8. It is possible to prevent co-rotation, ensure positioning, and improve workability and work efficiency. According to the embodiment of the fixing metal fitting 1, since the metal fitting member 7 is formed of a steel material, for example, a stainless steel plate, the strength is large, and the rising portions 7c are welded and integrated by spot welding when two pieces of them are combined. Therefore, the rigidity is extremely high. Therefore, it is possible to prevent the lower portion of the rising portion 7c from being broken or deformed due to buckling or bending due to vertical and horizontal loads, and to improve the strength and durability of the floor structure.

Next, a method of constructing the floor structure of the above embodiment will be described. This floor structure is mainly provided outdoors, and the joist 5 is arranged on the concrete slab 2 in parallel with each other at the same level via the anchor bolt 3, the adjusting bolt 4, and the joist support plate 12 as described above. It is set up. Note that the joist 5 is preliminarily processed into a size based on the specifications of the construction site in the processing factory before being carried into the construction site, and is subjected to processing such as drilling as necessary.

The floor material 6, like the joist material 5, is processed into a size that meets the specifications of the construction site in advance in the processing factory before being carried into the construction site, and the groove portion 16 is formed on the outer surface in the width direction. Has been formed. So, at the floor construction site,
Based on the floor construction specifications, the anchor bolts 3 are punched on the concrete slab 2 in accordance with the pitch dimension of the joist 5 and the anchor bolts 3 are driven. Then, the adjustment bolt 4 is screwed into the anchor bolt 3, and the nut 10, the joist material support plate 12 and the like are screwed onto the adjustment bolt 4 to adjust the level of the joist material support plate 12, The joist 5 is placed on the support plate 12.

In this way, when a plurality of joists 5 are arranged in parallel on the concrete slab 2 at predetermined intervals, the fixing metal fitting 1 according to the present invention is used on the joists 5. The floor material 6 is sequentially attached to the joist material 5 at right angles. That is, first, the first fixing member 1 is placed on the joist 5 so that the positioning pieces 18 contact and abrade both widthwise side surfaces of the joist 5, and the tapping screw 8 is inserted into the screw insertion hole 15. It is inserted and screwed into the groove-shaped recess 14 of the joist 5 while making a hole with the screw 8 to connect and fix. At this time, it is not necessary to open the screw insertion hole for the joist 5 in advance.

The fixing members 1 are fixed on a plurality of joists 5 on which one floor member 6 is placed, by the number required to attach the floor members 6. Then, on the mounting portion 7b of the fixing member 1 fixed on the joist 5, as shown in FIG.
The first floor material 6 is placed so that both ends in the longitudinal direction are located at the center of the joist material 5 in the width direction, and the locking portion 7a of the fixture 1 is fitted and locked in the groove portion 16 of the floor material 6. To do. Since the screw insertion hole 15 is counterbored, the screw head does not protrude from the upper surface of the mounting portion 7b, and the floor 6 can be stably placed on the fixing bracket 1.

In this way, when the installation of the first floor material 6 is completed, the next fixing metal fitting 1 is placed on the joist 5 and the mounting portion between the floor material 6 and the joist 5 installed earlier. 7b, and subsequently, the engaging portion 7a of the fixing metal fitting 1 is inserted into the groove portion 16 of the floor material 6 to be fitted and locked, and then the attaching portion 7b of the fixing metal fitting 1 is attached to the joist 5 with the tapping screw 8. Fix it.
At this time, the fixing points of the screws 8 are, as shown in FIG. 1, a portion protruding from both longitudinal end portions of the floor member 6 and a portion protruding from the floor member 6 of the mounting portion 7b. If the positioning piece 18 is provided with a screw insertion hole, the fixing metal fitting 1 can be fixed to the side surface 5b of the joist 5 even at the longitudinal intermediate portion of the floor 6. With the above work, the first fixing of the floor material 6 to the joist 5 is completed.

After that, the floor materials 6 in the next row are arranged so as to be placed on the mounting portion 7b of the fixing metal fitting 1 on the joist material 5, and the floor material 6 is fitted and locked by the above-mentioned procedure, and the fixing metal fitting 1 is also attached. The floor material 6 can be laid by sequentially repeating the work of fixing the to the joist material 5. According to the floor structure of the above-described embodiment, when laying the floor material 6, if the first fixing metal fitting 1 is accurately positioned, then the fixing metal fitting 1 is placed on the joist 5 and moved in the longitudinal direction thereof. Only by securely fitting the locking portion 7a and the groove portion 16 of the floor member 6, positioning and fixing can be performed with high accuracy, workability is excellent, and work efficiency can be significantly improved.

Further, according to the fixing metal fitting 1 of the above-mentioned embodiment, since the metal fitting member 7 is made of steel and the two rising portions 7c are aligned and integrally fixed by welding, the rigidity is required and high. Sufficient strength can be secured, and the strength and durability of the floor structure can be improved. Furthermore, stress due to bending (flaking) of the floor material 6 can be suppressed and the floor material 6 can be fixed stably. In the above-mentioned embodiment, the positioning pieces 18 of the fixing member 1 can be provided so as to abut two pieces on each side in the width direction of the joist 5 as shown by the chain double-dashed line in FIG. It is possible to provide each or a part of the positioning piece 18 with a screw insertion hole so that each metal fitting member 7 can be firmly fixed to the joist 5.

The present invention is not limited to the above embodiment. For example, the joist 5 can be made of conventional hard wood or shaped steel, and its design can be changed appropriately.

[0029]

As described above, according to the present invention,
Since the rigidity of the fixing member is greatly increased by adopting the structure in which the two rising portions of the fixing member are combined, the strength and durability of the floor structure can be improved. Further, according to the present invention, a positioning piece, which abuts both widthwise side surfaces of the joist member, is bent downward in at least one diagonal position of the end portion corresponding to the longitudinal direction of the floor material, in the mounting portion of both metal fitting members. Since it is formed, the fixing metal fitting can be easily and accurately positioned in the width direction of the joist material, and the fixing metal fitting rotates with the joist material when the mounting portion is screwed to the joist material. Can be prevented and the laying work of the floor material can be facilitated.

Further, according to the present invention, since the tip of the tapping screw inserted into the mounting screw insertion hole is fitted into the groove-shaped recess and positioned, the screwing operation of the fixing metal fitting with the tapping screw is facilitated. You can

[Brief description of drawings]

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

FIG. 2 is a partially cutaway enlarged front view of the same embodiment.

FIG. 3 is a left side view of FIG. 2 with a part thereof omitted.

FIG. 4 is a perspective view of a fixing member in the same embodiment.

FIG. 5 is an enlarged plan view of a fixing member in the same embodiment.

FIG. 6 is a right side view of FIG.

FIG. 7 is a perspective view showing a conventional floor structure.

FIG. 8 is a front view showing a conventional fixing member.

9 is a plan view of FIG. 8. FIG.

[Explanation of symbols]

1 fixing bracket 2 concrete slabs 5 joists 5b side 6 floor materials 7 metal fittings 7a Locking part 7b Mounting part 7c Startup section 14 Groove-shaped recess 16 groove 17-point welding 18 Positioning piece

Continuation of front page (56) Reference JP-A-11-100978 (JP, A) Actually open 51-38333 (JP, U) Actually open 47-15312 (JP, U) Actually open 2-91836 (JP , U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04F 15/02 101 E04B 5/02 E04F 15/00 101 E04B 1/60 508

Claims (3)

(57) [Claims] 1. A flooring material having groove portions formed on both side surfaces in the width direction along the longitudinal direction of the floor material, which are arranged substantially parallel to each other at required intervals, and is substantially orthogonal to the floor material. A plurality of fixing metal fittings that are laid in the direction using the groove portion, wherein two metal fitting members that are bent and formed into a substantially U-shape or a key shape are butted back to back and joined integrally by welding to form a cross-section or It is a rail type, and the upper pieces of both metal fitting members are locking parts to the floor material, and the lower pieces of both metal fitting members are mounting parts to the joist material. On both sides of the material in the width direction
The positioning pieces that come into contact with each other correspond to the longitudinal direction of the floor material.
Is bent downward only at one diagonal position of the end
Mounting brackets joist material and floor material, characterized in that there. 2. A floor material having grooves formed on both side surfaces in the width direction along the longitudinal direction on a plurality of joists that are arranged substantially parallel to each other at required intervals, by means of fixing metal fittings to the joists. In the floor structure in which a plurality of grooves are laid in a substantially orthogonal direction by using the groove portion, the fixing metal fitting is formed by bending two metal fittings that are bent in a substantially U shape or a key shape, and are joined together by back-to-back welding. integrated is a sectional Engineering shaped or rail-shaped, together with the upper piece of the two fittings member is an engagement portion of the flooring, the lower piece of the two fittings member is a mounting portion of the joist member, the two fittings Attach it to both sides of the joist timber in the width direction.
The positioning pieces that come into contact with each other correspond to the longitudinal direction of the floor material.
Is bent downward only at one diagonal position of the end
Floor structure, characterized in that there. 3. The floor structure according to claim 2, wherein one or a plurality of groove-shaped recesses extending in the longitudinal direction are provided on the upper surface of the joist material in the width direction.