JP3852052B2 - Floor structure - Google Patents

Description

  The present invention relates to a floor support and a method for manufacturing the same. More specifically, the present invention relates to a floor support that can improve workability in a floor structure to which a panel conversion method is applied, and can easily remodel an existing house, and a method for manufacturing the same.

  2. Description of the Related Art Conventionally, in the construction of detached houses and apartment houses, a so-called panel construction method has been used that simplifies the construction by using a floor base material formed into a panel in a floor structure.

  In this panel conversion method, as shown in FIG. 13, long steel pullings 101 supported at appropriate intervals by steel bundles 102 are arranged at predetermined intervals, and spanned over those steel pullings 101. In this way, a configuration in which the floor panel 103 is laid is used. In this configuration, as shown in FIG. 14, the upper part of the steel pull 101 is screwed to the floor panel 103, and the lower part of the steel pull 101 is screwed to the steel bundle 102. ing.

  However, since this screwing tends to cause a problem in its holding force as the plate thickness becomes thin, the plate thickness that can be screwed is usually limited to 0.8 mm.

However greens grounds, in the case where the thickness and 0.8mm limits, from where screwing work is the so-called field work, occurs Ya easier bis idle Kara beating of the so-called bis due to torque control mistakes of the screw, There is a problem in that the stability of the bonding force at the screwing point is lacking. If it is going to avoid this, the board thickness of the steel large drawing 101 must be thickened, and another problem of inhibiting the weight reduction of the steel large drawing 101 arises. In addition, since the number of screwing points is large, there is a problem that the work is complicated.

In addition, since the length of the steel pulling 101 is about 4 m, there is a problem that its handling is bad and rapid construction cannot be performed. This problem is particularly noticeable in partial floor modifications in existing houses that require rapid construction.
JP 2003-307018 A

  The present invention has been made in view of the problems of the prior art, and aims to stabilize the quality and improve the workability in the floor structure to which the panel method is applied, and to easily modify the partial floor of an existing house. An object of the present invention is to provide a floor support that can be used and a method of manufacturing the same.

Floor structure of the present invention, there is provided a floor structure comprising a floor support which supports the floor panel and the floor panel, the floor support is a steel Obiki, both end portions of the steel-made Obiki A steel bundle disposed on the steel bundle, and a bundle attachment member for attaching the steel bundle to the steel drawer, wherein the steel drawer has a first member that forms the upper surface at both ends of the upper surface; a second material forming the sides and lower surface has a crimped portion formed by caulked top end portions, bis secure the floor panels to the caulking portion is characterized by comprising a screwed.

In the floor structure of the present invention, it is preferable that the length of the steel pull is such that the side end of the floor panel adjacent to the end can be placed.

Further, in the floor structure of the present invention, it is preferable that prevention of staking of the caulking portion is formed on the upper surface of the steel overdraw.

Furthermore, in the floor structure of this invention, it is preferable that the center part of the both sides | surfaces of steel large drawing is dented.

Further, in the floor support of the present invention, it is preferable that the bundle attachment member is press-fitted into the steel pulling. In that case, the inner surface of both sides of the bundle mounting member is imitated on both side surfaces of the steel pulling to be press-fitted, or the bundle mounting member is screwed to the steel pulling to prevent the positional deviation. More preferably.

Furthermore, in the floor structure of the present invention, it is preferable that a storage portion for storing the level adjustment bolt head portion of the steel bundle is formed at the bottom portion of the bundle attachment member. In that case, it is more preferable that a stopper for restricting the rotation of the head of the level adjustment bolt is formed in the storage portion.

Further, in the floor support of the present invention, the steel bundle is a bundle body in which a turn bush is disposed at the upper end portion, a level adjustment bolt mounted on the turn bush, and a lifting nut for raising and lowering the level adjustment bolt. And a lower lock nut having a storage portion for storing the elevating nut, and an upper lock nut for locking the head of the level adjusting bolt. In that case, it is more preferable that the upper lock nut has a locking serration.

  The method for producing a floor support of the present invention includes a steel pull, a steel bundle disposed at both ends of the steel pull, and a bundle attachment member for attaching the steel bundle to the steel pull. A method of manufacturing a floor support for supporting a floor panel comprising: a step of press-fitting a bundle attachment member into a steel pulling end, and attaching a level adjustment bolt of the steel bundle to the bundle attachment member And a step of locking the level adjusting bolt to the bundle mounting member by an upper lock nut of a steel bundle.

  In the method for manufacturing a floor support of the present invention, it is preferable that the level adjustment bolt is attached at the construction site.

  Since the present invention is configured as described above, it is excellent in that the quality of the floor structure to which the panel method is applied is improved and the workability is improved, and the partial floor modification of the existing house can be easily performed. Has an effect.

  Hereinafter, although the present invention is explained based on an embodiment, referring to an accompanying drawing, the present invention is not limited only to this embodiment.

  FIG. 1 shows a floor support according to an embodiment of the present invention in a front view, and FIG. 2 shows a side view.

  As shown in FIGS. 1 and 2, the floor support K includes a steel pulling 10, a pair of steel bundles 20, 20 disposed at both ends of the bottom of the steel pulling 10, and a steel bundle 20. Is a two-legged floor support that mainly includes a bundle attachment member 30 for attaching to the steel pulling 10. Here, the distance between the axial centers of the steel bundles 20 and 20 is basically matched with the width of the floor panel placed on the floor support K. That is, the floor support tool K is arranged so that the steel pulling 10 is orthogonal to each row when a floor base is formed by laying rectangular or square floor panels of the same width for each row in the paneling method. And support the floor. Here, “basic” means that when the row to which the floor support K is applied is adjacent to a rising foundation such as a cloth foundation, the base plate of the steel bundle 20 may interfere with the foundation. In order to avoid this, the steel bundle 20 may be provided slightly inside.

  As shown in FIG. 2 and FIG. 3, the steel pulling 10 has a substantially rectangular cross section (65 mmW × 45 mmH in the illustrated example), that is, a cross section whose width is larger than its height. It is. By widening the width in this way, the front and rear ends of the floor panels arranged in a row can be placed.

  The length of the steel pulling 10 is such that the side edge of the floor panel adjacent to the edge can be placed.

  Further, as shown in FIG. 3, the upper surface 11, the both side surfaces 12, 12 and the lower surface 13 of the steel pulling 10 are appropriately formed with irregularities so that the rigidity of the surface itself is enhanced and reinforced. For example, both side surfaces 12 and 12 are formed in a state where the central portion is recessed inward.

  In this steel pulling 10, the first material B1 that forms the upper surface 11 and the second material B2 that forms both side surfaces 12, 12 and the lower surface 13 are caulked at both ends 11a, 12a of the upper surface 11. . Since the caulked portion is composed of four layers, the bending is reinforced by itself. That is, the steel pulling 10 is a self-reinforcing pulling. In order to prevent the caulking portion from coming off, a portion located behind the caulking portion of the upper surface 11 is protruded inward in a V shape to form a coming off prevention 11b. Further, the width w of the crimped portion is adjusted so that a screw for fixing the floor panel can be inserted (see FIGS. 11 and 12). Thereby, the thickness for screwing can be ensured, reducing the plate | board thickness of 1st material B1, and aiming at workability and weight reduction.

  Here, the first material B1 is a steel plate (plate thickness: 0.8 mm) subjected to rust prevention treatment, and the second material B2 is a steel plate (plate thickness: 0.7 mm) subjected to rust prevention treatment. For example, a high corrosion resistant molten zinc-aluminum (6%)-magnesium (3%) plated steel sheet is used. Alternatively, a hot-dip zinc-aluminum (11%)-magnesium (3%)-silicon (0.2%) alloy-plated steel sheet (plate thickness: 0.8 mm, 0.7 mm) is used. That is, the plate thickness of the first material B1 constituting the upper surface 11 is increased.

  By adopting the structure of the steel pulling 10, the desired strength is ensured and the weight can be reduced despite the wide width.

  As shown in FIGS. 4 to 7, the bundle attachment member 30 is formed by pressing a plate material 31 into a groove shape, for example, and has both side portions 32, 32 and a bottom portion 33, and a steel bundle at the center of the bottom portion 33. A storage portion 34 for storing 20 T-bolt heads is formed so as to project outward in an inverted frustoconical shape, and an insertion hole 36 for a locking screw 35 is formed at an appropriate position of the bottom portion 33.

  The storage portion 34 has a depth that allows the T-bolt head of the steel bundle 20 to be stored, and has a diameter that allows the T-bolt head to rotate. A rectangular through hole 37 through which the T-bolt head is inserted is formed on the bottom surface of the storage portion 34, and when the T-bolt head is rotated by a predetermined angle, for example, 90 degrees, the inner peripheral surface is more than that. A pair of stoppers 38, 38 for preventing rotation are arranged opposite to each other. The stopper 38 is disposed, for example, by causing the corresponding position of the side wall of the storage portion 34 to protrude inward.

  The inner surfaces of both side portions 32 have a shape following both side surfaces 12 and 12 of the steel pulling 10 to which the bundle mounting member 30 is attached, that is, a shape in which the upper portion is recessed inward. Further, the distance between the inner surfaces of both side portions 32 is slightly narrower than the width of the steel pulling 10 so that it can be press-fitted into the steel pulling 10.

  The bundle mounting member 30 is also subjected to predetermined rust prevention, for example, rust prevention based on zinc.

  As shown in FIGS. 8 to 10, the steel bundle 20 includes a bundle body 21 made of a cylindrical body in which a turn bush 22 is disposed at an upper end portion and a base plate 23 is disposed at a lower end portion, and the turn bush 21. A level adjustment bolt (T bolt) 24 mounted, a lifting nut 25 for raising and lowering the level adjustment bolt 24, a lower lock nut 26 having a storage portion 26a for storing the lifting nut 25 at the lower end, and an upper end surface An upper lock nut 27 that locks the bolt head 24a having the locking serration 27a is provided. The elevating nut 25, the lower lock nut 26, and the upper lock nut 27 are screwed onto the level adjustment bolt 24 in this order from the lower end of the level adjustment bolt 24. The steel bundle 20 is also subjected to predetermined rust prevention, for example, rust prevention based on zinc.

  Next, production of the floor support K having such a configuration will be described.

A. Factory side operation Step 1: The bundle attachment members 30 are attached to both ends of the steel pulling 10. This attachment is performed, for example, by press-fitting the bundle attachment member 30 from the side of the steel pulling 10 end.

  Procedure 2: The misalignment prevention screw 35 is inserted through the insertion hole 36 and screwed to the steel pulling 10 to prevent misalignment of the bundle mounting member 30. Thereby, the steel pulling 10 is brought into the state shown in FIG.

  Procedure 3: The steel bundle 20 is assembled in the state shown in FIG.

  Thereby, the factory side work is completed. Thereafter, the steel pulling 10 and the steel bundle 20 are individually conveyed to the construction site. Thereby, a transportation volume is reduced and transportation cost is reduced.

B. Construction site side operation Procedure 11: The steel bundle 20 is attached to the bundle attachment member 30.

For this attachment, for example, the head 24a of a T bolt (level adjustment bolt) 24 shown in FIG. 9 is inserted through the through hole 37 provided in the bundle attachment member 30 and the bolt head 24a is inserted into the storage portion 34. The lock nut 27 is screwed toward the bolt head 24a and tightened. (As a result, the bolt head 24a is rotated 90 degrees to come into contact with the stoppers 38, 38 and is held between the upper lock nut 27 and the bottom surface of the storage portion 34 to prevent its rotation. The upper lock nut 27 is formed with a locking prevention portion such as a locking serration 27a on the end surface of the upper lock nut 27 in contact with the bottom surface of the storage portion 34. The biting into the bottom surface of the storage portion 34 is prevented from being loosened, and the lock of the level adjusting bolt 24 is maintained.)
Procedure 12: Adjust the level of the steel pulling 10 with the lifting nut 25.

  Procedure 13: After the level adjustment, the elevating nut 25 is locked by the lower lock nut 26.

  Thereby, the floor support K is completed.

  11 and 12 show a state where the floor panel P is supported by the floor support tool K. FIG.

  As described above, the floor support K of the present embodiment has a length of the steel pulling 10 that is about the width of the floor panel P (about 1 meter at the maximum), and has a self-reinforcing configuration using two materials. Therefore, the thickness of the plate material used can be reduced and the cross-sectional area can be reduced. Therefore, the floor support K can be reduced in weight while ensuring a predetermined rigidity.

  The floor panel P and the steel pulling 10 are joined by screws. The screws are connected to the caulking portion of the steel pulling 10 by a guide hole (not shown) provided in the floor panel P in advance. Since it is made to do with respect to a screw | thread, a screw | thread can exhibit predetermined | prescribed holding power. For example, even if the plate thickness of the first material B1 and the second material B2 is 0.8 mm and 0.7 mm, respectively, the plate thickness of the caulking portion is 3.0 mm, and the plate thickness necessary for screwing is sufficiently secured. Yes.

  Further, since the bundle mounting member 30 is attached to the steel pulling 10 by press-fitting, not only can the screw fastening be omitted, but the side surface of the steel pulling 10 swells due to the load from the floor panel P. Can be suppressed. The screw 35 is used to cope with an unexpected impact load applied to the steel pulling 10 or the steel bundle 20 and is intended to absorb the impact by shearing. Therefore, the holding force is not so required for the screw 35.

  In addition, since the steel pulling 10 and the steel bundle 20 can be easily integrated at the construction site, rapid construction can be performed while reducing transportation costs. Therefore, the floor support K is suitable for partial floor remodeling of an existing house where quick construction is required.

  The present invention can be applied to support of a floor base material to which a panel method is applied. It can also be applied to partial remodeling of existing house floors.

It is a front view of the floor support tool concerning one embodiment of the present invention. It is the same side view. It is the 2nd page figure of the steel large drawing which is used for the same floor support tool, (a) shows the partial front view, (b) shows the side view. It is a front view of the state which attached the bundle attachment member to steel pulling. It is the same side view. It is the bottom view. It is a front view of a bundle attachment member. It is a front view of a steel bundle. 2A and 2B are two views of a T bolt, wherein FIG. 1A shows a front view and FIG. 1B shows a bottom view. It is a three-view figure of an upper lock nut, (a) shows a top view, (b) shows a front view which shows a part in section, and (c) shows a bottom view. It is a front view which shows the state which is supporting the floor panel by the floor support tool. It is the same side view. It is a perspective view which shows the construction middle of the floor structure by the conventional panel conversion method. It is the elements on larger scale of the floor panel support part in the construction method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Steel large drawing 11 Top surface 12 Both sides 13 Bottom surface 20 Steel bundle 21 Bundle body 24 Level adjustment bolt, T bolt 25 Lifting nut 27 Upper lock nut 30 Bundle attachment member 32 Both sides 33 Bottom portion 34 Storage portion 38 Stopper K Floor support Equipment P Floor panel

Claims (11)

A floor structure comprising a floor support which supports the floor panel and the floor panel,
The floor support includes a steel pull, a steel bundle disposed at both ends of the steel pull, and a bundle attachment member that attaches the steel bundle to the steel pull.
The steel draw has a caulking portion in which a first member that forms the upper surface at both ends of the upper surface and a second material that forms both side surfaces and the lower surface are caulked at both ends of the upper surface. floor structure, characterized in that screws for fixing the floor panel is formed by screwed in part. 2. The floor structure according to claim 1, wherein the length of the steel pull is such that a side end portion of the floor panel adjacent to the end portion can be placed. 2. The floor structure according to claim 1, wherein prevention of staking of the caulking portion is formed on the upper surface of the steel pulling. The floor structure according to claim 1, wherein the center portions of both side surfaces of the steel large drawing are recessed. The floor structure according to claim 1, wherein the bundle attachment member is press-fitted into a steel pull. 6. The floor structure according to claim 5, wherein the inner surfaces of both side portions of the bundle mounting member are imitated by both side surfaces of the steel pulling to be press-fitted. 6. The floor structure according to claim 5, wherein the bundle mounting member is screwed to a steel puller to prevent displacement. 2. The floor structure according to claim 1, wherein a storage portion for storing the level adjustment bolt head of the steel bundle is formed at the bottom of the bundle attachment member. The floor structure according to claim 8, wherein a stopper for restricting the rotation of the head of the level adjustment bolt is formed in the storage portion. A steel bundle includes a bundle main body having a turn bush disposed at an upper end, a level adjusting bolt mounted on the turn bush, a lifting nut for raising and lowering the level adjusting bolt, and a storage portion for storing the lifting nut. The floor structure according to claim 1, further comprising: a lower lock nut having an upper lock nut that locks a head of the level adjustment bolt. The floor structure according to claim 10, wherein the upper lock nut has a locking serration.

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