JP6474105B2 - Structural material holding method and holder - Google Patents

Description

  The present invention relates to a holding method and a holding tool for holding a structural material such as a concrete formwork.

  Patent Document 1 discloses a concrete formwork. Usually, the plurality of foams constituting the concrete form described in Patent Document 1 are stored in an independent state, transported independently, and assembled as a concrete form at a construction site.

Japanese Patent Laid-Open No. 2005-282096

  Although the foam has a certain thickness, it is not thick but rather thin. Therefore, since it is unstable in a self-supporting state, it is often in a fallen state during storage or transportation, and a large space is required for the fallover. In particular, it is easy to fall down during transportation, so it is often overturned. May be attached. In order to prevent this damage, it is necessary to intervene those having a buffering action between adjacent foams.

  In addition, when the foam is carried into the construction site, the ground at the construction site is usually in an irregular state, so that in the overturned state, there is a risk of getting dirty, and it is often temporarily placed in a standing state. However, since the standing state is unstable, it is necessary to take measures to prevent the foam from falling down, which is troublesome.

  An object of the present invention is to enable a thin structural material such as foam to be stably held in an upright state.

In order to achieve the above object, in the invention relating to a method for holding a structural material, a plate material is stretched on a side surface, and a structural material having end plates fixed to both ends of the plate material is arranged so that the plate material faces inward. The first and second connecting members are respectively installed between the adjacent end plates at both ends of the structural member, and the first and second connecting members and the end plates are screwed together. And

  In the invention relating to the structural material holder, the first connecting member having an installation leg, a bolt insertion hole, and a mounting surface on which an object to be mounted is mounted on the upper surface, and the bolt insertion A second connecting member having a bolt insertion hole corresponding to the hole and having a contact surface on the lower surface contacting the upper surface of the object to be placed on the mounting surface is provided.

  According to the present invention, the structural member is fixed in a parallel state with a mutual interval in a state where the structural member is sandwiched between the first connecting member and the second connecting member. Therefore, it is possible to hold a plurality of structural members in a compact manner without overlapping each other. For this reason, it is convenient for transportation and storage without requiring a large space or a preventive measure against the falling of the structural material for the installation of a plurality of structural materials. In particular, when transporting the structural material, since a plurality of structural materials can be unloaded and unloaded, the transport efficiency can be improved.

  According to the present invention, the effect that a plurality of structural members can be held together in an upright state is exhibited.

The perspective view of a 1st connection member. The perspective view of a connection member. The perspective view which shows the holding | maintenance state of a structural material. The side view which shows the holding | maintenance state of a structural material.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.
A pair of 1st connection members 11 shown in FIG. 1 are comprised by the elongate main body 12 and the installation member 13 fixed to the both ends of the main body 12 by welding. The main body 12 and the installation member 13 are comprised by the angle material as a shape steel material. The upper surface of one flange 121 of the main body 12 is a receiving surface 14. In the flange 121, a plurality of bolt insertion holes 15 are provided at positions spaced from each other.

  The 2nd connection member 21 shown in FIG. 2 is comprised with the elongate material. The second connecting member 21 is formed of an angle material as a shape steel material, and the lower surface of one flange 211 is a contact surface 22. The other flange 212 is provided with a plurality of bolt insertion holes 23 corresponding to the bolt insertion holes 15 of the first connecting member 11 so as to be spaced apart from each other. Latch holes 24 are formed through both ends of the other flange 212 of the second connecting member 21.

The pair of first connecting members 11 and the pair of second connecting members 21 constitute a holder 31 of the present embodiment.
The invert form 51 as a mounting object has end plates 55 and 56 fixed to both ends of a surface plate 54 as a plate material stretched on the side surface thereof by welding. As apparent from FIG. 4, the end plates 55 and 56 are respectively formed with bolt insertion holes 52 and 53 as through holes. When the invert form 51 is assembled as a mold, the end plates 55 and 56 of the invert form 51 are overlapped with the end plates 55 and 56 of other adjacent invert forms 51. The invert form 51 constitutes a concrete mold with a side foam and a top foam (not shown), and the surface plate 54 has a molding surface 541 for molding concrete together with the side plates and the surface plates of the point foam.

Next, a method for holding the inverted form 51 using the holding tool 31 configured as described above will be described.
As apparent from FIGS. 3 and 4, the pair of first connecting members 11 are installed in parallel with the ground surface, the floor surface, and the like, and a plurality of invert forms 51 are placed on the receiving surface 14 of the first connecting member 11 on the lower side. The end plates 55 are placed at intervals. In this case, the molding surface 541 of the surface plate 54 of the invert form 51 is directed inward so as not to be exposed to the outside of the invert form row. Then, the bolt 61 is inserted into the bolt insertion hole 23 of the first connecting member 11 and the bolt insertion hole 52 of the invert form 51, and the nut 62 is screwed into the bolt 61 to tighten the invert form 51. Therefore, in this state, the first connecting member 11 is installed between the end plates 46 in the row of the inverted form 51.

  Next, the pair of second connecting members 21 are placed on the contact surface 22 on the upper surface of the invert form 51 so as to be parallel to the first connecting member 11. Then, the bolt 61 is inserted into the bolt insertion hole 23 of the second connection member 21 and the bolt insertion hole 53 of the invert form 51, and the nut 62 is screwed into the bolt 61, and the second connection member is connected by the bolt 61 and the nut 62. 21 and the invert form 51 are tightened. Therefore, in this state, the second connecting member 21 is installed between the end plates 55 on the upper side of the inverted form 51.

If it does in this way, the invert form 51 can be firmly hold | maintained without the disorder | damage | failing arrangement | sequence state with the holder 31 in the state which mutually spaced apart.
The plurality of invert forms 51 held in this manner are lifted via hooks (not shown) such as cranes that are latched in the latch holes 24 of the second connecting member 21, and are loaded from the storage position to the truck bed, etc. It is moved to the construction position for placing concrete. Then, the bolts 61 and the nuts 62 of the invert forms 51 are sequentially removed at the construction position, whereby the invert forms 51 are removed from the holding positions one by one and assembled as a concrete formwork.

In this way, the following effects can be obtained.
(1) The plurality of invert forms 51 are fixed in a state where they are spaced apart from each other while being sandwiched between the first connecting member 11 and the second connecting member 21 from above and below. Therefore, the plurality of inverted forms 51 can be held compactly without being stacked one above the other. For this reason, a large space is not required for the installation of the plurality of invert forms 51, which is convenient for transportation and storage.

(2) In particular, during transportation, since a plurality of invert forms 51 can be lifted and lowered, and unloaded and unloaded, transportation efficiency can be improved.
(3) Since the molding surface 541 of the surface plate 54 of the invert form 51 faces inward without being exposed to the outside, it is possible to prevent the molding surface 541 from being damaged or soiled during transportation.

  (4) When the invert form 51 is temporarily placed or temporarily stored at the construction site, the invert form 51 can be set up with the first connecting member 11 and the installation member 13 as legs. That is, even when the ground of the construction site is rough, the invert form 51 can be installed without falling down or becoming dirty. Therefore, it is possible to save the trouble of taking measures to prevent the invert form 51 from falling.

  (5) Since the plurality of invert forms 51 can maintain a mutual interval during storage and transportation, the invert forms 51 can be prevented from rubbing with each other, and therefore, the surface plate or the like of the invert form 51 can be prevented from being scratched by the rubbing. it can. Further, since the invert forms 51 can maintain a mutual interval, it is possible to save the trouble of interposing a cushioning material between the invert forms 51.

  (6) Since a plurality of invert forms 51 can be held together by the first connecting member 11 and the second connecting member 21, when the invert forms 51 are transferred to a truck bed, the invert forms 51 can be lifted together. It can be simplified.

  (7) Since the main body 12 and the installation member 13 of the first connecting member 11 and the second connecting member 21 are made of an angle material, the first connecting member 11 and the second connecting member 21 can be manufactured from the same material. This is advantageous for cost reduction.

The present invention is not limited to the embodiment described above, and can be embodied in the following manner.
-At least one of the main body 12, the installation member 13, and the second connection member 21 of the first connection member 11 is made of a shape steel material other than the angle material, for example, a channel material, an H-shaped material, a square pipe material, or a round pipe material.

  A bolt is fixed to the main body 12 and the second connection member 21 of the first connection member 11 by welding or the like, and the bolt is inserted into the bolt insertion holes 52 and 53 of the invert form 51.

The holder 31 is configured to hold a structural material other than the inverted form 51.
-The retaining hole 24 of the second connecting member 21 is omitted. Even in this case, the invert form 51 can be lifted by hooking a hook or the like on the lower surface side of the second connecting member 21.

The technical idea grasped from the embodiment is as follows.
(A) The structural material holding method according to claim 1, wherein the structural material is a foam in which a surface plate for molding concrete on a side surface is stretched.

(B) The structural material holding method according to item (A), wherein the end plate is overlapped with an end plate of another adjacent foam.
(C) The holder according to claim 3, wherein the first connecting member and the second connecting member are formed in a long shape.

(D) The holder according to claim 3, wherein at least the first connecting member is formed of a shape steel material.
(E) The holder according to claim 3, wherein the shape steel material is formed of an angle material.

  (F) The holder according to claim 3, wherein a pair of the first connecting member and the second connecting member are provided.

  DESCRIPTION OF SYMBOLS 11 ... 1st connection member, 12 ... Main body, 13 ... Installation part, 15 ... Bolt insertion hole, 21 ... 2nd connection member, 22 ... Contact surface, 23 ... Bolt insertion hole, 31 ... Holder, 55 ... End plate 56 ... End plate.

Claims (3)

A structural material in which a plate material is stretched on a side surface and end plates are fixed to both ends of the plate material is arranged so that the plate material faces inward, and the first material is disposed between the adjacent end plates at both ends of the structural material. , A method for holding a structural material in which a second connecting member is installed and the first and second connecting members and the end plate are screwed together.   The method for holding a structural material according to claim 1, wherein a through hole is formed in the end plate, and the first and second connecting members are fixed to the end plate by bolts passing through the through hole. A first connecting member having an installation leg, a bolt insertion hole, and a mounting surface for mounting an object to be mounted;
A holding tool comprising: a second connecting member having a bolt insertion hole corresponding to the bolt insertion hole and having a contact surface on the lower surface that contacts the upper surface of the object to be placed on the mounting surface.

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