JP4005497B2 - Floor bundle and its usage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor bundle for fixing a building floor on a concrete base, more specifically, a bolt and a nut screwed onto the top of the bolt, and the lower end of the bolt is planted on the concrete base. In addition, the present invention relates to a floor bundle for fixing a large draw or joist (hereinafter, typically referred to as joist) to a position whose height is adjusted by the nut, and a method of using the same.
[0002]
[Prior art]
FIGS. 5 and 6 show a floor bundle that has been conventionally used by one of the applicants and a method for using the same. That is, the floor bundle A ′ includes a bolt 101 for height adjustment, a fixing plate 102 screwed to the lower part of the bolt, a receiving member 103 screwed to the upper part of the bolt, and an upper end part of the bolt 101. It is comprised with the nut 104 screwed together.
When this is used, as shown in FIG. 5, the lower end portion of the bolt 101 with the fixing plate 102 screwed to the lower portion is provided in the hole 105 provided at the intersection of the vertical line XL and the horizontal line YL written on the concrete base B. After inserting and adjusting the embedding depth of the bolt with the fixing plate 102, a bonding material 106 such as a mortar or an adhesive is injected into the hole 105 to fix the bolt individually.
Waiting for the solidification curing of the binding material, the joists 107 are bonded to the individual floor bundles. That is, the receiving member 103 is screwed onto the upper portion of the bolt 101 by a female screw provided in the center thereof, and the upper end portion of the bolt 101 is passed through the lower hole provided in the joist member 107 to be provided in the joist member. The nut 104 is screwed into the upper end of the bolt 101 from the upper hole, and the inclination and height of the joist member 107 are adjusted by rotating the receiving member 103 and the nut 104.
Patent Document 1 describes a floor bundle that is substantially the same as the above prior art.
[0003]
[Patent Document 1]
JP 2000-320056 A paragraph 0010, FIG.
[0004]
[Problems to be solved by the invention]
In the case of the above prior art, the bolt is not connected to the floor base, but is inserted into the hole of the concrete base with the fixing plate attached to the bolt, and the receiving material is screwed to the bolt after the curing of the binding material. Then, the upper ends of the individual bolts are passed through the joists, and the joists are placed on the receiving member, and the nuts are fastened to the upper parts of the bolts to fix the joists. However, there are the following problems.
That is, firstly, since the bolts are erected individually, the bolts are completely vertical on a straight line along the joist and so that a plurality of bolts are aligned along a common vertical plane. It is difficult to stand upright. Therefore, the dimensional accuracy of the joist installation is difficult to increase structurally. Secondly, since the dimensional accuracy of the bolt installation of each floor bundle is low, the penetration of the bolt into the joist and the correction at the time of fastening the nut are not easy. Thirdly, after the bolt is inserted, after waiting for the solidification curing of the binding material, the operation of screwing the receiving material to the bolt, the operation of penetrating the bolt upper end portion into the joist material, and the fastening of the nut to the bolt upper end portion Since the work is performed, the time from the start to the end of construction becomes longer.
[0005]
The present invention has been made in view of the above points, and the first problem is that it is possible to improve the efficiency and dimensional accuracy of the bolt standing on the concrete base, and to correct the inclination and height of the joist. An object of the present invention is to provide a floor bundle that can be easily performed and can shorten the construction time.
The second problem is to provide a method of using a floor bundle that enables a significant reduction in the construction time for installing the floor foundation.
[0006]
[Means for Solving the Problems]
In order to solve the first problem, the present invention comprises a bolt and a nut that is screwed onto the upper part of the bolt. The lower end of the bolt is planted on a concrete base, and the upper end of the bolt is overdrawn. Alternatively, in a floor bundle for fixing a joist to a position whose height is adjusted by the nut, (a) an inverted cup-shaped fixing tool is screwed into a lower portion of the bolt at an internal thread portion provided at the bottom thereof; b) The fixing tool is characterized in that it has an accommodation space that opens on the lower surface and accommodates a binding material such as mortar, and a hole or notch for injecting the binding material into the accommodation space.
With the above configuration, the fixing tool can be rotated to adjust the insertion depth of the bolt into the hole of the concrete base. The upper end of the bolt can be coupled to the joist with a nut, and the height of the joist can be adjusted via the nut. The lower end portion of the bolt can be inserted into the hole of the concrete base, and the fixing tool can be placed on the top surface of the concrete base. In this state, the height and inclination of the joist can be corrected by adjusting the position of the nut relative to the bolt. Then, a binder such as mortar can be injected from the hole or notch of the fixing tool into the hole of the concrete base and the accommodation space of the fixing tool. By injecting the binder, the construction is completed without waiting for the solidification curing of the binder.
[0007]
It is desirable that the holes or notches of the fixing tool are provided at positions opposite to each other. Thereby, it is possible to inject the binding material from the other hole or notch while monitoring the injection state from one hole or notch.
Further, it is desirable that the fixing tool is provided with a nut protruding upward from the upper end portion, and can be rotated by fitting a tool to the nut. Thereby, the position adjustment with respect to the volt | bolt longitudinal direction of a fixing tool can be easily performed using a tool common with another nut.
[0008]
In order to solve the second problem, the present invention includes: (a) a fixing tool is screwed to a lower part of a bolt; and (b) an upper part of the bolt is temporarily connected to a large pull or a joist with a nut. The bundle is attached to the floor base, (c) the floor base is left on the concrete base, the lower end of the bolt is inserted into the hole provided in the concrete base, and the fixing tool is placed on the top of the concrete base. (D) Correct the inclination and height of the large pull or joist by operating the nut and fasten the nut. (E) Finally, remove the binder from the hole or notch of the fixing tool. It is characterized in that it is injected into the hole of the concrete base and the accommodation space of the fixing tool.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
1 is a front view of a floor bundle used for installing joists, FIG. 2 is a sectional view taken along line XX in FIG. 1, FIG. 3 is a longitudinal sectional view of only a fixing tool, and FIG. 4 is a floor bundle. It is an expanded sectional view of only the lower part.
[0010]
In the figure, A is a floor bundle according to the present invention. The floor bundle A includes a height adjusting bolt 1, a fixing device 2 screwed to the lower end portion of the bolt 1 so as to be vertically movable, and a pair of nuts 3 screwed to the vicinity of the upper end portion of the bolt 1. 4.
[0011]
As shown in FIG. 3, the fixing device 2 is formed in an inverted cup shape, has an accommodation space 5 that opens downward, has a hole 6 in the center of its bottom, and further projects upward on the upper surface of its bottom. The nut 7 is joined with the center of the female screw 8 aligned with the center of the hole 6. Preferably, a rubber anti-slip cover 9 is fitted to the flange at the lower end of the fixing tool 2 in order to increase the frictional resistance of the fixing tool against the concrete base B.
[0012]
The fixing device 2 is also provided with a hole 10 communicating with the accommodation space 5 at a position on the opposite side of the shoulder portion. As will be described later, mortar or mortar and It is possible to inject a bonding material having excellent bonding properties with the concrete base B, such as an adhesive. Instead of this, the hole 10 may be a notch.
[0013]
The construction method in the case of fixing the floor foundation C of a building on the concrete base B as shown in FIG. 1 using the floor bundle A having the above configuration will be described.
In FIG. 1, reference numeral 12 denotes a joist material constituting the floor base C, and is formed in a long rectangular tube shape as shown in FIG. 2. The upper wall 13 and the lower wall 14 of the joist 12 are provided with holes 13h and 14h penetrating in the vertical direction at positions where the floor bundles are joined. The hole 13h in the upper wall 13 is formed in a size that allows the nut 4 to be inserted into the joist 12 from above.
[0014]
First, the lower end portion of the bolt 1 is screwed into the female screw 8 of the nut 7 of the fixing device 2, and a tool is fitted into the nut 7 and turned to turn the lower end portion of the bolt 1 over an appropriate length. Protrude from. That is, the embedding depth with respect to the hole of the concrete base | substrate of the volt | bolt 1 is set.
Next, the first nut 3 is screwed onto the upper part of the bolt 1, and the nut is used to reach a position where the distance from the fixing tool 2 is substantially equal to the installation height from the concrete base B of the joists using a tool. Move 3. Subsequently, after attaching the washer 11 to the bolt 1 on the upper side of the nut 3, the tip of the bolt 1 is inserted upward from the hole 14 h of the lower wall 14 of the joist 12 and the upper wall 13 of the joist 12 is formed. Another nut 4 is inserted into the joist member 12 through the hole 13 h and is gently screwed into the upper end of the bolt 1 to attach the floor bundle A to the joist member 12.
[0015]
A plurality of floor bundles A are attached to all the joists 12 constituting the floor foundation C at a plurality of locations separated in the longitudinal direction in the same manner as described above. In many cases, the joist members 12 arranged in parallel are connected to each other by a connecting member (not shown) and assembled into a frame shape or a square shape.
[0016]
Then, the floor base C to which the floor bundle A is attached is placed on the concrete base B, and is provided on the concrete base B at the intersection of the vertical and horizontal lines written on the top surface of the concrete base as shown in FIG. The lower end portion of the bolt 1 of each floor bundle is inserted into the hole 15, and the fixing tool 2 is placed on the concrete base upper surface. In this state, since the upper surface of the concrete base B in each floor bundle does not necessarily form a complete horizontal plane, the fixing tool in a certain floor bundle may float from the upper surface of the concrete base. Therefore, the fixing tool 2 and / or the nut 3 is turned in a required direction by using a tool so that the fixing tool 2 is grounded to the upper surface of the concrete base B, and all the joists 12 are on a common horizontal plane. Correct the height and inclination of joists. Finally, the nut 4 is firmly tightened to lock the bolt 1 to the joist 12.
[0017]
When the height of all the joists 12 is adjusted by the fixing tool 2 and the nuts 3 and 4 of the floor bundle A, the binder is connected from the one hole 10 of the fixing tool 2 of each floor bundle to the accommodation space 5 of the fixing tool. D is injected. That is, for example, mortar is injected, or adhesive is injected after mortar injection. Since the injection can be performed while looking into the fixing tool from the other hole 10, it is possible to prevent the amount of injection of the binding material from being excessive or insufficient with respect to the volume of the accommodation space 5 of the fixing tool 2. . Therefore, the fixing tool 2 can be securely fixed to the concrete base B.
[0018]
After fixing the floor foundation C, the floor bundle A has a lower end embedded in the concrete base B via the fixing tool 2 and an upper end connected to the joist 12 via nuts 3 and 4. It is effectively prevented that the ground vibrates up and down with respect to the concrete base and makes a so-called floor noise.
[0019]
When the anti-slip cover 9 is attached to the fixing device 2, the side slip of the bolt 1 with respect to the upper surface of the concrete base B is surely prevented, and the hardened mortar or other bonding material D may be broken by the stress received from the bolt. Eliminated.
[0020]
Reference numeral 16 in FIG. 1 denotes a deck member that is placed and fixed on the upper surface of the joist member 12.
In the illustrated example, since the upper end of the bolt 1 is coupled to the joist in a manner that does not protrude from the upper surface of the joist 12, the nuts 3 and 4 tighten the lower wall 14, but depending on the type of floor, In some cases, the bolt 1 is coupled to the joist in a manner that protrudes from the upper surface of the joist. In this case, the upper nut 4 is brought into contact with the upper surface of the upper wall 13 of the joist.
Further, the number and position of the holes 10 of the fixing device A are not particularly limited, and even if only one hole is provided, it is possible to properly inject the binding material. When provided on the opposite side, there is an advantage that an appropriate amount of the bonding material can be quickly and accurately injected from the other hole while monitoring from one side.
[0021]
【The invention's effect】
As described above, according to the invention of claim 1, the floor bundle is previously attached to the floor foundation, the floor foundation is left on the concrete base, and the lower end portion of the bolt of each floor bundle is made into the hole of the concrete base. In the inserted state, the height and inclination of the joist can be easily corrected by adjusting the height of the fixing tool and / or nut relative to the bolt, and then the binder is easily injected into the fixing tool. can do. Therefore, it is possible to easily and quickly perform the work of attaching the floor bundle to the floor base, adjusting the height, and injecting the binder, and the construction is not affected by the curing period of the binder, so that the construction time can be shortened. It is.
[0022]
According to the invention of claim 3, after the floor bundle is erected on the concrete base, the floor bundle is not attached to the floor bundle but is attached to the floor base in advance, and the floor base is placed on the concrete base. Let stand, insert the lower end of the bolt into the hole provided in the concrete base, leave the fixing tool on the top of the concrete base, and operate the fixing tool and / or nut to tilt and height the joist Since the floor bundle is used so that the binder is injected into the hole of the concrete base and the fixing space from the hole of the fixing tool and finally the nut is tightened, the floor base construction efficiency is greatly improved. To do.
[Brief description of the drawings]
FIG. 1 is a front view of a floor bundle used for installing joists.
FIG. 2 is a cross-sectional view taken along line XX in FIG.
FIG. 3 is a longitudinal sectional view of only a fixing tool.
FIG. 4 is an enlarged sectional view of only the lower part of the floor bundle.
FIG. 5 is a perspective view showing some of the components of the floor bundle that have been conventionally used by one of the applicants and a method of using the floor bundle.
FIG. 6 is a cross-sectional view showing the usage state of the floor bundle.
[Explanation of symbols]
A Floor bundle 1 Bolt 2 Fixing tool 3, 4 Nut 5 Housing space 7 4 Nut 10 Hole B Concrete base 15 Hole D Bonding material

Claims (4)

A bolt and a nut that is screwed onto the top of the bolt; the bottom end of the bolt is planted on a concrete base; In the floor bundle fixed in the
The inverted cup-shaped fixing tool is screwed to the lower part of the bolt at the female thread portion provided at the bottom thereof,
The fixing device has an accommodation space that opens on the lower surface and accommodates a binding material such as mortar, and a hole or a notch for injecting the binding material into the accommodation space;
A floor bundle characterized by. The floor bundle according to claim 1, wherein the holes or notches of the fixing tool are provided at positions opposite to each other. 3. The floor bundle according to claim 1, wherein the fixing tool is provided with a nut protruding upward from a bottom portion thereof, and can be rotated by fitting a tool to the nut. While screwing the fixing tool to the lower part of the bolt, temporarily attaching the upper part of the bolt to the foreboard or joist with a nut and attaching each floor bundle to the floor base, the floor base is left on the concrete base, The lower end of the bolt is inserted into a hole provided in the concrete base, the fixing tool is allowed to stand on the top surface of the concrete base, and the inclination or height of the large pull or joist is adjusted by operating the nut. 4. The nut according to claim 1, 2 or 3, wherein the nut is straightened and the nut is fastened, and finally a binding material is injected from the hole or notch of the fixing tool into the hole of the concrete base and the accommodation space of the fixing tool. How to use a floor bundle.

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