JP6099994B2 - Membrane bonding method - Google Patents

Description

  The present invention relates to a method of joining adjacent side end portions of a membrane material from the inside of the structure when a membrane material such as a tent is stretched on, for example, a roof portion or a side wall portion of the structure.

  For example, when a tent is stretched on the roof or side wall of a structure made of a truss structure, if the area of the roof is large, the roof cannot be covered with a single tent. Will stretch the tent.

  Thus, when extending | stretching a tent using a several sheet | seat material, it is necessary to join the adjacent side edge parts of a film | membrane material. For example, as shown in FIG. 2, the adjacent side end portions are joined after the eyelets 2 are provided in a staggered manner at the adjacent side end portions of the film material 1, and these eyelets 2 are tied through the string 3 (the lasing method). This is done by fusing the ends of the joint film 1a branched into two forks from adjacent side edges of the film material 1 (see the prior art in Patent Document 1).

  However, in the above joining method, the joint film is arranged outside the adjacent side ends of the structure and the film material in order to avoid exposing the string tied through the eyelet to the external environment. Cannot be joined from inside the body. That is, since work from the outside of the membrane material is required, work from the roof occurs in the case of the roof. Moreover, in the case of the side wall part, it was necessary to work by installing a temporary scaffold outside the membrane material.

Japanese Patent Laid-Open No. 06-26245

  The problem to be solved by the present invention is to avoid exposing the string tied through the eyelet to the external environment when the adjacent side edges of the membrane material are joined by the method shown in FIG. Since the joint membrane is disposed outside the adjacent end portions of the frame structure and the membrane material, it cannot be joined from the inside of the structure.

  The present invention has been made for the purpose of providing a method capable of joining adjacent side edges of a film material from the inside of the structure.

The joining method of the membrane material of the present invention is as follows:
A method of joining adjacent side edges of a plurality of film materials stretched on a structure,
First, each side edge of the two adjacent membrane materials is sandwiched by flat plates from the front and back sides, and a pair of membrane material fixing portions is formed by tightening these flat plates,
Next, screw rods are passed through the flat plates sandwiching the two membrane materials and the membrane materials at positions different from the tightening positions so that the side end portions of the two membrane materials face the inner surface of the structure. Then, tightening nuts that fit into these threaded rods and introducing the tension to the two membrane materials by bringing the flat plates of the pair of membrane material fixing portions into close contact with each other,
After that, the main feature is that the screw rod is replaced with a main joining bolt to join the pair of membrane material fixing portions.

  In the present invention, after sandwiching the front and back surfaces of each side end portion of both membrane materials adjacent to each other with a flat plate, the side ends of both membrane materials are directed toward the inner surface of the structure, and the screw rods and nuts are used to Since the flat plates are brought into close contact with each other and tension is introduced into both the membrane materials, and then the screw rod is replaced with the main joining bolt, the membrane materials can be joined from the inside of the structure.

  In the present invention, the membrane material can be joined from the inside of the structure, and it is not necessary to work on the roof or to provide a temporary scaffold on the outside of the structure. Adjacent side edges can be joined together.

(A)-(f) is a figure explaining later the method of joining the adjacent edge parts of the film | membrane material of this invention. It is a figure explaining the method of joining the side edge parts which the conventional film | membrane material adjoins.

  The present invention aims to join the side edges of the two adjacent membrane materials from the inside of the structure, and after the side edges are sandwiched by the flat plate from the front and back sides, the side edges of the structure are This was realized by bringing the flat plates of the two membrane materials into close contact with each other with the screw rod and nut so that they face the inner surface, introducing tension into the two membrane materials, and then replacing the screw rod with the main joining bolt.

  The present invention is a method of joining adjacent side end portions 11a and 12a of membrane materials 11 and 12 stretched on, for example, a roof portion of a structure, and will be described in order with reference to FIG. .

(Preliminary work)
The thicknesses t1a and t2a of the adjacent side end portions 11a and 12a of the film materials 11 and 12 are set to be thicker than the thicknesses t1b and t2b of the other portions 11b and 12b.

  In the example shown in FIG. 1, a long member 13 such as a rope or rubber is inserted into a cylindrical interior formed by folding the adjacent side end portions 11 a and 12 b of both membrane materials 11 and 12 toward the center portion. Thus, the thicknesses t1a and t2a of the side end portions 11a and 12a are made thicker than the thicknesses t1b and t2b of the other portions 11b and 12b (see FIG. 1A).

  In this way, when the thicknesses t1a and t2a of the adjacent side end portions 11a and 12a of the both membrane materials 11 and 12 are made thicker than the thicknesses t1b and t2b of the other portions 11b and 12b, these side end portions 11a. , 12a is less likely to be detached from the side end portions 11a, 12a.

  Therefore, if the membrane material fixing hardware 14 is difficult to be detached from the side end portions 11a and 12b of the membrane materials 11 and 12, it is not limited to the one in which the long member 13 is attached to the side end portions 11a and 12b as shown in FIG. Alternatively, a plurality of side end portions 11a and 12b that are folded back may be used.

  In addition, if the attached film material fixing hardware 14 is difficult to be detached from the side end portions 11a and 12b of the film materials 11 and 12, the thickness t1a of the side end portions 11a and 12a adjacent to each of the film materials 11 and 12 is not necessarily limited. , T2a need not be thicker than the thicknesses t1b, t2b of the other portions 11b, 12b.

(Joining work)
First, a pair of membrane material fixing portions is formed by attaching a membrane material fixing metal 14 to the center side of the long member 13 inserted in each of the side end portions 11a and 12b (see FIG. 1B).

  The film material fixing hardware 14 is formed by sandwiching the film materials 11 and 12 from the front and back surfaces with a pair of metal flat plates 14a and 14b having a predetermined length, for example, with two countersunk bolts 14c and nuts 14d. Tighten. And the through-hole 14e of the elongate screw rod 15a is provided in the three positions of the flat plate 14a, 14b between the fastening positions by the countersunk | bolt bolt 14c and the nut 14d, and the both sides of a fastening position.

  When sandwiching and tightening the membrane materials 11 and 12 with the flat plates 14a and 14b, the flat bolt 14c is inserted from the outside of the structure so that the head of the flat bolt 14c does not protrude from the surface of the flat plate 14a located outside. deep.

  Next, the flat plates 14a attached to the side end portions 11a and 12a of the both membrane materials 11 and 12 are arranged so that the side end portions 11a and 12a of the both membrane materials 11 and 12 face the inner surface of the structure. Let In this state, the screw rod 15a is passed through the through hole 14e provided in the opposed film material fixing metal 14, and nuts 15b are attached to both sides of the penetrated screw rod 15a (see FIG. 1 (c)).

  The nuts 15b fitted from both sides of the three screw rods 15a are sequentially tightened so that the flat plates 14a and 14a of the pair of film material fixing portions are brought into close contact with each other, and tension is introduced into the film materials 11 and 12. (See FIG. 1 (d)).

  Thereafter, the three screw rods 15a tightened with the nuts 15b are sequentially replaced with the main joining bolts 16a to join the pair of membrane material fixing portions (see FIG. 1 (e)). At this time, a U-shaped metal piece 17 is attached to the main joining bolt 16a at an appropriate position, engaged with the tension cable 18, and attached to the structure (FIG. 1 (f)). Reference numeral 16b denotes a nut that is fitted to the main joining bolt 16a.

  The present invention is not limited to the above examples, and it goes without saying that the embodiments may be changed as appropriate within the scope of the technical idea described in each claim.

  For example, in the above example, the case where the adjacent side end portions of the membrane material constituting the tent stretched on the roof portion of the structure are joined is described. Needless to say, the present invention can also be applied to bonding when a film material constituting a tent or the like is stretched on the portion.

  In the above example, the U-shaped metal member 17 is attached to the main joining bolt 16a at an appropriate position and engaged with the tension cable 18. However, as long as it can be engaged with the tension cable 18, The U-shaped hardware 17 may not be used.

DESCRIPTION OF SYMBOLS 11 Membrane material 11a Side end 11b Other part 12 Membrane material 12a Side end 12b Other part 14 Membrane material fixing metal 14a, 14b Flat plate 14c Countersunk bolt 14d Nut 14e Through hole 15a Screw rod 15b Nut 16a Main joining bolt 16b Nut 17 U-shaped hardware 18 Cable for tension

Claims (3)

A method of joining adjacent side edges of a plurality of film materials stretched on a structure,
First, each side edge of the two adjacent membrane materials is sandwiched by flat plates from the front and back sides, and a pair of membrane material fixing portions is formed by tightening these flat plates,
Next, screw rods are passed through the flat plates sandwiching the two membrane materials and the membrane materials at positions different from the tightening positions so that the side end portions of the two membrane materials face the inner surface of the structure. Then, tightening nuts that fit into these threaded rods and introducing the tension to the two membrane materials by bringing the flat plates of the pair of membrane material fixing portions into close contact with each other,
Thereafter, the screw rod is replaced with a main joining bolt to join the pair of membrane material fixing portions to each other.   2. The method for joining film materials according to claim 1, wherein the thickness of each side end portion of the two adjacent film materials is made thicker than the thickness of the other portions.   3. When the screw rod is replaced with a main joining bolt, a U-shaped metal fitting is attached to an appropriate main joining bolt and engaged with a cable for tensioning both membrane materials. Method for joining membrane materials.

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