JP3734001B2 - Floor support structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor support structure suitable for application to a so-called dry double floor structure, which is constructed with a predetermined height from a floor base such as a concrete slab by a support leg in an apartment house, a gymnasium, etc. .
[0002]
[Prior art]
As a floor support structure in a conventional dry double floor structure, as shown in FIG. 16, a tube fitting 103 having an internal thread portion 102 formed on an inner peripheral surface is inserted into a hole 101 formed in a floor base panel 100, and this tube The flange portion 104 formed at the lower end of the metal fitting 103 is fixed to the lower surface of the floor base panel 100, the male screw portion 105A on the upper end side of the bolt 105 is screwed into the female screw portion 102 of the cylindrical metal fitting 103 from below, and the lower end side of the bolt 105 Is known in which a male screw portion 105B is screwed into a female screw portion of a metal fitting 106. A buffer 107 such as rubber is attached to the metal fitting 106. The male screw portions 105A and 105B are reverse screws.
[0003]
As another conventional example, as shown in FIG. 17, the upper portion of the tubular fitting 103 is inserted into the hole 101 of the floor base panel 100, the flange 104 is formed near the upper end of the tubular fitting 103, and the flange 104 and the tubular fitting are formed. 103 is provided with a rib 108, and a leg 109 is inserted into the tubular metal fitting 103 from above the hole 101 of the floor base panel 100, and a male thread 109A formed on the upper part of the leg 109 is screwed into the female thread 102. Things are known. A shock absorber 110 such as rubber is provided at the lower end of the leg 109.
[0004]
[Problems to be solved by the invention]
In the conventional example shown in FIG. 16, the bolts 105 and the shock absorbers 107 with the receiving metal fittings 106 must be attached from the lower surface of the floor base panel 100 during construction. Further, when a place where a heavy object is placed on the floor and a place where a partition is installed is known in advance and a reinforcing leg is provided at the place, positioning is performed, that is, the hole 101 is formed in the floor base panel 100. It was necessary to attach the buffer body 107 with the bolt 105 and the receiving bracket 106 from the lower surface of the panel 100 in advance. Further, when the reinforcing legs are provided after the floor is completed, it is necessary to disassemble the floor.
[0005]
In the conventional example shown in FIG. 17, the leg 109 can be inserted from the floor upper surface, and when the place to be reinforced is known in advance, the hole 109 and the cylindrical metal fitting 103 with the flange 104 may be provided. When it is intended to provide reinforcing legs after the floor is completed, the member composed of the tubular fitting 103 and the flange 104 can be attached only from the lower surface of the floor foundation panel 100, and therefore the floor has to be disassembled. . The flange 104 is a member that supports the floor foundation panel 100 and has been indispensable in the past.
[0006]
Therefore, in the present invention, when supporting legs are added for reinforcement or the like, the supporting legs can be easily added from the upper surface of the floor without dismantling the floor even after the disposing material is provided or after the floor is completed. An object is to provide a floor support structure.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention includes a hollow wedge-shaped front end portion whose outer peripheral surface becomes smaller in diameter toward the lower end, and a cylindrical main body portion from the step portion to the upper end of the wedge-shaped front end portion, A plurality of slits are formed along the axial direction from the lower end to the middle of the cylindrical main body portion, a female thread portion is formed on the inner peripheral surface to constitute a nut member, and the nut base member is formed on the floor base panel. A hole with almost the same diameter as the diameter is formed, and the wedge-shaped tip of the nut member is passed through the hole with the diameter reduced from above, and the step of the wedge-shaped tip is brought into contact with the bottom surface of the floor base panel to the hole. In a floor support structure in which a nut member is attached and a support leg having a shock absorber attached to the bottom surface of the nut member is screwed and the shock absorber of the support leg is grounded to a floor base such as a concrete slab , the upper end side of the cylindrical main body portion A plurality of wedge pieces are formed on the outer peripheral surface. Rust piece in which was bite into the inner circumferential surface of the hole of the subfloor panels.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0009]
In the embodiment shown in FIG. 1, a nut member 3 is inserted and attached to the hole 2 of the floor base panel 1 from above, and the support leg 4 is attached to the female screw portion 31 formed on the inner peripheral surface of the nut member 3 from above. Screw in. A male screw portion 41 is formed on the outer peripheral surface of the support leg 4, and the male screw portion 41 is screwed into the female screw portion 31. A groove 42 is formed at the upper end of the support leg 4, and a blade edge such as a minus driver is inserted into the groove 42 to rotate the support leg 4. A shock absorber 5 such as rubber, elastic resin, or metal spring is attached to the lower end of the support leg 4. The buffer body 5 is grounded to a floor base 10 such as a concrete slab. In FIG. 1, the support leg 4 is shown in the middle of construction. The support leg 4 is further rotated to ground the shock absorber 5 to the floor base 10. The outer diameter of the buffer body 5 is not larger than the outer diameter of the support leg 4 so that it can pass through the hollow portion of the nut member 3.
[0010]
FIG. 2 shows a state before the nut member 3 is attached to the hole 2 of the floor base panel 1, a hollow wedge-shaped tip portion 32 whose outer peripheral surface becomes smaller in diameter toward the lower end, and a step of the wedge-shaped tip portion 32. A plurality of slits 35 are formed along the axial direction from the lower end to the middle of the cylindrical main body 34, and an internal thread portion 31 is formed on the inner peripheral surface. Yes. The support leg 4 and the buffer body 5 attached to the lower end thereof are inserted and screwed into the nut member 3 from above, and the buffer body 5 and the support leg 4 protrude below the floor base panel 1.
[0011]
FIG. 3 shows a cross-section in the middle of inserting the nut member 3 into the hole 2 of the floor base panel 1 from above, and the hole 2 has substantially the same diameter as the outer diameter of the cylindrical main body 34. In this state, the wedge-shaped tip portion 32 passes through the hole 2 in a reduced diameter state.
[0012]
4 shows a state in which the nut member 3 is further pushed down from the state shown in FIG. . The step portion 33 supports the load applied to the floor base panel 1 together with the support legs 4.
[0013]
FIG. 5 shows a bottom view of the nut member 3 and shows a state in which six slits 35 are formed at equal intervals. The number of slits 35 and the slit width are designed so that the wedge-shaped tip 32 can pass through the hole 2.
[0014]
In the embodiment shown in FIG. 1 to FIG. 5, in the state where the floor base panel 1 is supported on the floor base 10 by the support legs 4, generally a flooring material (not shown) is provided on the floor base panel 1. A finishing material (not shown) is attached to the upper surface of the scraping material. Alternatively, the finishing material can be directly attached to the upper surface of the floor foundation panel 1. Even after the affixing material or finishing material is pasted, when it is desired to further provide the support leg 4 at the location to be reinforced, the hole 2 is formed at that location, and the nut member 3 is inserted into the hole 2 from above. The support leg 4 can be screwed into the nut member 3 from above as well. When the hole 2 is made after pasting the disposing material or finishing material, the hole at the location of the finishing material can be easily repaired. Moreover, if it is before sticking a finishing material or finishing material, it is only necessary to make a hole at a predetermined portion of the floor foundation panel 1, and repair work is unnecessary.
[0015]
The nut member 3 shown in FIG. 6 shows an example in which a plurality of wedge pieces 36 are formed on the outer peripheral surface on the upper end side of the cylindrical main body 34, and these wedge pieces 36 bite into the inner peripheral surface of the hole 2 of the floor foundation panel 1. The nut member 3 is firmly fixed to the hole 2 to prevent the nut member 3 from coming off.
[0016]
The nut member 3 shown in FIG. 7 shows a cylindrical body portion 34 having a tapered portion 37 formed on the upper end side thereof, and when the tapered portion 37 is press-fitted into the hole 2, the nut member 3 is firmly fixed and detached. I'm trying to prevent it.
[0017]
The nut member 3 can be made of various materials such as a metal material and a plastic material as long as it is a material that can form the female screw portion 31 and the wedge-shaped tip portion 32 can be reduced in diameter by forming the slit 35.
[0018]
In another embodiment shown in FIG. 8, the cylindrical support leg 4 is screwed into the female thread portion 31 of the nut member 3. The support leg 4 has a partition wall 44 formed in the hollow portion of the cylindrical body portion 43, and a claw 45 extending inward is formed at the lower end of the cylindrical body portion 43. A cap 55 is placed on the head of the buffer body 5, and the cap 55 is fitted into a hollow portion between the partition wall 44 and the claw 45. As shown in FIGS. 9 to 11, the support leg 4 has slits 46 formed on both sides of the three claws 45 so that the cap 55 fits over the claws 45. Further, as shown in FIGS. 13 to 15, the cap 55 has three notches 55B formed in the top portion 55A, and small claws 55D formed in three locations on the inner peripheral surface of the body portion 55C. The small claws 55D are formed at locations corresponding to the cutouts 55B, and the small claws 55D are not easily separated from the buffer body 5 by being inserted into the buffer body 5.
[0019]
In the embodiment shown in FIGS. 8 to 15, when the support leg 4 is rotated, the partition wall 44 in contact with the cap 55 slides and rotates on the top 55A of the cap 55 to rotate the cap 55 and the shock absorber 5. Only the support leg 4 rotates. The nut member 3 and the floor base panel 1 are raised or lowered by the rotation of the support leg 4.
[0020]
【The invention's effect】
As described above, according to the present invention, since the nut member can be inserted from above the floor base panel, the support legs for reinforcement for placing partitions and heavy objects can be easily installed even after the floor construction. Additional construction can be done from In particular, when the floor is first constructed in an apartment house or the like, since the reinforcing support legs for partitioning are attached even after the release material is attached, the construction of the entire apartment house is greatly simplified. In addition, since the installation of the nut member that supports the floor base panel does not require nails, screws, or adhesion, the construction is simplified. Furthermore, since a shock absorber can be easily attached as compared with a general joist structure, sound insulation performance can be secured. In addition, since the wedge pieces are bitten into the inner peripheral surface of the hole of the floor base panel, the nut member is firmly fixed to the hole and can be prevented from coming off.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view during construction showing a preferred embodiment of the present invention.
FIG. 2 is an exploded perspective view of a support leg and a nut member.
FIG. 3 is a cross-sectional view in the middle of press-fitting a nut member from above the floor base panel.
FIG. 4 is a cross-sectional view after press-fitting a nut member.
FIG. 5 is a bottom view of the nut member.
FIG. 6 is a perspective view showing a modification of the nut member.
FIG. 7 is a perspective view showing another example of a nut member.
FIG. 8 is a cross-sectional view showing another embodiment.
FIG. 9 is a plan view of a support leg.
FIG. 10 is a front view of a support leg.
FIG. 11 is a bottom view of a support leg.
12 is an end view taken along line AA in FIG. 9;
FIG. 13 is a plan view of a cap.
14 is a sectional view taken along line BB in FIG.
FIG. 15 is a bottom view of the cap.
FIG. 16 is a partially broken front view showing a conventional example.
FIG. 17 is a partially broken front view showing another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor base panel 2 Hole 3 Nut member 4 Support leg 5 Shock absorber 10 Floor base 31 Female thread part 32 Wedge-shaped front-end | tip part 33 Step part 34 Cylindrical main-body part 35 Slit 41 Male thread part

Claims (4)

A hollow wedge-shaped tip portion whose outer peripheral surface becomes smaller in diameter toward the lower end and a cylindrical main body portion from the step portion to the upper end of the wedge-shaped tip portion, and in the axial direction from the lower end to the middle of the cylindrical main body portion A plurality of slits are formed along the inner circumferential surface to form a nut member, and the floor base panel is formed with a hole having a diameter substantially the same as the outer diameter of the cylindrical body portion of the nut member. Pass the wedge-shaped tip of the nut member from above into the hole in a reduced diameter, contact the step of the wedge-shaped tip on the bottom surface of the floor base panel, attach the nut member to the hole, and cushion the nut member on the bottom surface In the floor support structure in which the support leg to which is attached is screwed and the cushion of the support leg is grounded to the floor base such as concrete slab ,
Forming a plurality of wedge pieces on the outer peripheral surface on the upper end side of the cylindrical main body,
A floor support structure characterized in that these wedge pieces are bitten into the inner peripheral surface of the hole in the floor base panel . A hollow wedge-shaped tip portion whose outer peripheral surface becomes smaller in diameter toward the lower end and a cylindrical main body portion from the step portion to the upper end of the wedge-shaped tip portion, and in the axial direction from the lower end to the middle of the cylindrical main body portion A plurality of slits are formed along the inner circumferential surface to form a nut member, and a floor base panel is formed with a hole having a diameter substantially the same as the outer diameter of the cylindrical body portion of the nut member. The wedge-shaped tip of the nut member is passed through the hole with the diameter reduced from above, the step of the wedge-shaped tip is brought into contact with the lower surface of the floor base panel, and the nut member is attached to the hole. In the floor support structure in which the support leg to which the base is attached and the shock absorber of the support leg is grounded to the floor base such as concrete slab,
Screw a cylindrical support leg into the female thread of the nut member,
A partition wall is formed in the hollow portion of the cylindrical portion of the support leg,
Forming a plurality of claws extending inwardly at the lower end of the support leg cylinder part;
Get over the nail over the cap over the buffer and contact the partition wall,
A floor support structure, wherein when the support leg is rotated, the partition wall slides and rotates on the top of the cap, and only the support leg rotates. The floor support structure according to claim 2, wherein slits are formed on both sides of the nail. The floor support structure according to claim 2 or 3, wherein a notch is formed in a top portion of the cap, and a small claw is formed in a portion corresponding to the notch on the inner peripheral surface of the trunk portion.

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