JP4791585B2 - Film stopper - Google Patents

Description

  The present invention relates to a film stopper member used when fixing a synthetic resin film coated on an outer surface of a greenhouse or the like on a house construction material.

  Conventionally, a synthetic resin film coated on the outer surface of a greenhouse such as a greenhouse is fixed on the house construction material via a film fixing member for fixing the film on the house construction material forming the skeleton of the greenhouse. . This film fixing member is a bowl-shaped body that is provided with a film fixing groove along the longitudinal direction to be a fixing part of the film by bending a long strip steel plate, etc., and loosens the film inside the film fixing groove The film is clamped between the spring and the side wall portion of the fixing groove by inserting a film locking spring meandering from above the film with a predetermined swing width.

  In relation to such a film stopper member, for example, the following techniques have been proposed.

  In Patent Document 1, the ends of the left and right side wall portions, which are erected obliquely upward with the left and right edges of the long plate-shaped bottom wall portion facing inward, are folded inward to form a folded portion, and the folded portion is folded back. There has been proposed a film stopper member in which an inner surface and a side wall surface are substantially flush with each other.

  In Patent Document 2, the ends of the left and right side walls are curved outward at the opening edge of the fixing groove to form a curved portion, and when inserting the film into the fixing groove, the film is smooth without being caught at the opening edge. What is comprised so that it may be inserted in is disclosed.

JP 2005-295997 A Registered Utility Model No. 3031353

However, the conventional film stopper members described in the above-mentioned patent documents have the following problems.
(1) In the film stopper member in which the folded inner surface and the side wall surface of the folding part described in Patent Document 1 are substantially flush with each other, the metal part is crushed at the folding part, so the strong wind For example, there is a problem that it is difficult to effectively exhibit structural strength such as bending rigidity and torsional rigidity necessary for holding the entire greenhouse.
(2) Furthermore, since there is little catching resistance at the opening of the fixing groove, there is a problem that the synthetic resin film and the spring held in the fixing groove are easy to come off and the stability and film holding ability are poor.
(3) When the folds are formed by folding the ends of the left and right side walls outward as shown in Patent Document 2, rainwater or the like tends to accumulate in the folds at the tip, which causes rust. In addition, since the synthetic resin film is pressure-bonded and held by the curved tip, there is a problem that there is a case where the frictional resistance is low and it is difficult to reliably hold the synthetic resin film.
(4) In the conventional film stopper, while securing the opening width of the fixing groove so that the spring can be inserted, the right and left side walls of the fixing groove must be inclined so that the inserted spring does not come out of the fixing groove. Therefore, the fixing groove had to be formed shallowly. For this reason, there has been a problem that it is difficult to secure a fixing groove having a sufficient width for laminating and fixing the second and subsequent films.
(5) A plurality of springs can be accommodated so that the right and left side wall portions of the fixing groove rise from the middle at right angles to the bottom wall portion, but the spring stays in an inclined state inside the fixing groove. Is not transmitted to the left and right side walls of the fixing groove, and the film may not be fixed reliably.
(6) If the spring is left obliquely tilted inside the fixing groove, the film is locally pressed for a long period of time, and the film may be damaged. For this reason, when trying to make the spring parallel to the bottom wall portion, the film may be dragged while being sandwiched between the side wall portion and the spring and may be damaged.
(7) When the edge portions are swaged to connect the film stopper members, not only the lateral direction with the side wall portion but also the vertical direction due to the retaining portion and the folding portion provided in the opening portion of the fixing groove. The degree of compression must also be considered. For this reason, unless the bottom wall is wave-shaped, etc., and the degree of compression is not increased, it will not be large enough to be inserted into the fixing groove of the other film stopper member. Sometimes it was difficult to insert.
(8) When the film stopper members are connected by inserting the end portion of the film stopper member into the fixing groove of the other film stopper member, the curved portion is purposely crushed at the stage of edge-processing the film stopper member. Therefore, there is a problem that workability is poor.

  The present invention has been made to solve the above-described conventional problems, and can impart the structural strength necessary to maintain the entire greenhouse. Even a large number of synthetic resin films can be reliably and effectively obtained. An object of the present invention is to provide a film stopper member that can be retained, has excellent rust prevention properties such that rainwater and the like hardly accumulate, and is excellent in swageability.

(1) The present invention made to solve the above-described conventional problems is a film fixing member for covering and fixing a synthetic resin film on a house building material, and the back side thereof is fixed to the house building material. A long strip-shaped bottom wall part, left and right side walls formed by raising the left and right edges forming the longitudinal side of the bottom wall part obliquely upward inward, and the ends of the left and right side walls formed inward An elastic locking member that is bent and formed so as to have a cylindrical space, is surrounded by the left and right side wall portions having the folding portion and the bottom wall portion, and is mounted therein A film fixing groove for clamping the synthetic resin film is formed, and the left and right side wall portions are formed by bending from the edge of the bottom wall portion, and the curved portion and the folding portion. Having a straight portion formed between, The folding portion has a bent portion formed by bending the distal ends of the left and right side wall portions outward from the upper end of the linear portion and sequentially bending in the inner winding direction, and further folding back in the inner winding direction. Is brought into contact with the bent portion, and a locking portion that can be locked by the elastic locking member is formed in the folding portion .
(2) In the film stopper member of the present invention, in (1), the angle formed between the straight part of the left and right side wall parts and the bottom wall part surface is larger than the inward rising angle of the curved part 45. It is set to ˜80 degrees .
(3) The film stopper member of the present invention is characterized in that, in the above (1) or (2) , the locking portion is formed in a part of the folding portion substantially parallel to the bottom wall portion. To do .
(4) The film stopper member of the present invention is the film of the other film stopper member connected to one end side of the left and right side wall portions and the bottom wall portion in any one of (1) to (3). condensation shaped connecting portion fitted is provided in the fixing groove, wherein the reduced form connecting portions you characterized by having a side wall notch portion formed by notching a part of the left and right lateral walls.

According to the present invention, a long strip-shaped bottom wall portion whose back side is fixed to the house construction material and left and right end edges forming the longitudinal side of the bottom wall portion are formed to rise obliquely upward inward. Left and right side wall portions, and folding portions formed by bending the ends of the left and right side wall portions inwardly so as to have a cylindrical space, and the left and right side wall portions having the folding portion and the bottom wall Forming a film fixing groove in which the synthetic resin film is clamped by an elastic locking member attached to the inside, and a locking portion to which the elastic locking member can be locked Since it formed in the part, the structural strength required to maintain the entire greenhouse can be ensured while reducing the weight of the material to the minimum.

  Moreover, since a wide film fixing groove can be secured, even a synthetic resin film having two or more layers can be reliably and effectively held.

  Moreover, since the torsional rigidity is increased, it is possible to provide a film stopper member that is excellent in workability when swaging a joint portion for joining with another film stopper member.

Further, the folded portion, since the formed by folding a distal end of said left and right lateral walls on the inside, respectively, excellent, etc. accumulate difficulty rather rust resistance rainwater folded portions.

It is explanatory drawing of the greenhouse to which the film stopper member which concerns on a present Example is applied. It is explanatory drawing of the film stop member. It is a perspective view which shows the joining state of the film stop members. It is a front view which shows the joining state of the film stop members. It is explanatory drawing which shows the joining state of the film stop members. It is explanatory drawing of the attachment state of the synthetic resin film of the film stop member. It is sectional drawing of the film stop member from which the shape of a film fixing groove differs. It is a graph which shows the measurement result of the bending rigidity (lx) of each film stop member. It is a graph which shows the measurement result of the bending rigidity (ly) of each film stop member. It is a graph which shows the measurement result of the torsional rigidity of each film stop member. It is explanatory drawing which showed the contact angle of a film stop member and an elastic locking member. It is sectional drawing of the film stop member used for comprehensive evaluation of Table 2. FIG. It is sectional drawing of the film stop member from which the shape of a folding part differs, respectively. It is sectional drawing of the film stop member from which the shape of a folding part differs, respectively. It is sectional drawing of the film stop member from which the shape of an enormous part differs, respectively. It is a perspective view of the sheet material fastener applied to a film stop member. It is explanatory drawing which shows the fastening state of the sheet | seat material fastener.

The film stopper member according to the present embodiment is a film stopper member for covering and fixing a synthetic resin film on a house construction material, and is a long strip-like bottom wall whose back side is fixed to the house construction material A left and right side wall portion formed by raising the left and right end edges forming the longitudinal side of the bottom wall portion obliquely upward inward and a columnar space by bending the ends of the left and right side wall portions inwardly The synthetic resin film is clamped by an elastic locking member that is enclosed by the left and right side wall portions having the folding portion and the bottom wall portion, and is mounted inside the folding portion. A film fixing groove is formed , the left and right side wall portions are curved from the edge of the bottom wall portion, and a straight portion formed between the curved portion and the folding portion. And the folding part is In addition to having a bent portion formed by bending the distal end of the left and right side wall portions outward from the upper end of the linear portion and sequentially bending in the inner winding direction, the tip portion is further folded back in the inner winding direction to the bent portion. A locking portion that is brought into contact with and can be locked by the elastic locking member is formed in the folding portion .

  Therefore, the torsional rigidity and bending rigidity can be increased by the folding part, and the strength necessary for maintaining the entire structure of the greenhouse can be imparted. In addition, since the elastic locking member can be reliably locked by the locking portion of the folding portion to ensure a wide film fixing groove, even a large number of synthetic resin films can be reliably and effectively gripped.

  The film stopper is attached to a frame of a house construction material such as a greenhouse installed outdoors, and is covered and fixed with a synthetic resin film or a fastening band. Note that the film stopper member can be formed by bending a metal plate made of steel or the like, or extruding a metal such as aluminum.

  The bottom wall is a long band plate whose back side is fixed to a house construction material such as a greenhouse via a locking device such as a bolt nut, joint fitting, etc., and left and right side walls provided on both left and right ends thereof A film fixing groove is formed between the two portions.

Further, the folded portion is made by folding a distal end of said left and right lateral walls inwardly respectively, that form a retaining portion on the folded front end portion. Ri by the above configuration will have excellent corrosion resistance to hardly accumulate rainwater.

  By the way, the left and right side wall portions are portions formed by raising the left and right end edges forming the longitudinal side of the bottom wall portion obliquely upward inward.

  The left and right side wall portions have an angle of 45 degrees between the curved portion formed by bending from the edge of the bottom wall portion and the folded portion or enormous portion extending from the curved portion and the bottom wall portion surface. It is good to set it as the structure which has a linear part formed at -80 degree | times.

  With such a configuration, the width and shape can be set so that two or more synthetic resin films or an elastic locking member such as a spring can be held in the film fixing groove. In addition, the preferable range of the angle which extends in the said curved part and makes | forms the said bottom wall part surface between folding parts is 55-73 degree | times, More preferably, it is 60-66 degree | times.

As described above, the folded portion and engaging portion is formed, by such engaging portion, it is possible to easily engage the resilient locking member made of a linear spring, they fall off of the spring, As a result, the film can be prevented from falling off.

  The film fixing groove is formed so that its cross section expands from the upper opening toward the bottom wall portion, and an elastic locking member that elastically expands therein is accommodated. The upper opening of the film fixing groove is provided with a folded portion or a huge portion having a shape for locking a synthetic resin film to be clamped or an elastic locking member.

  In order to form a greenhouse, for example, it is necessary to attach a tightening band for preventing the synthetic resin film from expanding outward due to wind or the like, or to make the sheet double-tensioned. However, even in that case, the film fixing member can be covered and fixed by using a plurality of elastic locking members such as springs.

  That is, a fastening band or other synthetic resin film is inserted into the film fixing groove where the synthetic resin film for forming the house has already been inserted, and a wavy linear spring (elastic locking member) is also inserted from above. It is arranged and fastened. As described above, since there are many cases in which a double or triple sheet material is fixed using one film fixing member, the film fixing groove of the film fixing member has a structure corresponding to the depth. .

  The film stopper member of the present embodiment is provided with a reduced-size connecting portion that fits into the other film fixing groove to be connected to one end side of the left and right side wall portions and the bottom wall portion. Can also be configured to have side wall notches formed by notching part of the left and right side walls.

  As a result, a compression coupling part that can be inserted into the film fixing groove of another film fixing member is formed at one or both ends of the film fixing member, and the film locking spring is connected to the film fixing groove of the compression coupling part. Can be stably inserted. For this reason, a plurality of films can be reliably fixed even in the contracted connecting portion.

  In addition, when one end of the film stopper member is inserted and connected to the contracted connecting portion having the side wall notch portion, the one end of the film stopper member and the notched end portion of the contracted connecting portion are attached to each other more than necessary. The film stoppers can be prevented from being pushed in, and the film stoppers can be connected to each other in a substantially flush state. Also in this connecting portion, a connecting metal fitting for connecting the film stopper to the house construction material is provided. It becomes possible to install.

  The contracted connecting portion can be formed by pressing the film fixing groove from the left and right directions and extending the left and right side walls upward while pressing and holding the bottom wall from above. That is, by applying pressure only to the film fixing groove from the left and right when performing the swaging process, the vertical width of the compacted connecting portion is prevented from being shorter than that before the swaging process, and the bottom wall portion where the pressure is applied Can escape to the left and right side wall portions, and the left and right widths of the contracted connecting portion can be shortened while keeping the shape of the bottom wall portion flat. And a side wall notch part is formed by notching each right and left side wall part. In addition, after cutting out the strip-shaped steel plate used as a raw material into a predetermined shape and bending it to form the bottom wall part, the left and right side wall parts, and the folded part (enlarged part), the desired side wall for swaging A notch may be formed. In this way, the compact connecting portion can be formed with a simple process without taking time and the manufacturing cost of the film stopper can be kept low. In this way, the compact connecting portion can be securely fixed by sliding it from the longitudinal direction into the film fixing groove of the other film stopper member.

The film stopper member of the present embodiment includes a curved portion formed by bending the left and right sidewall portions from the edge of the bottom wall portion, and a bottom wall portion surface extending between the bent portion and the folded portion or the enormous portion. And a linear portion formed at an angle of 45 to 80 degrees. As a result, a sufficient space can be secured in the film fixing groove for inserting a plurality of sets of the synthetic resin film and the elastic locking member, and the synthetic resin film or the like is in a stable state that does not easily fall off. Can be set. In this way, by setting the inclination angle of the left and right side wall parts with respect to the bottom wall part within a predetermined range, the linear spring inserted into the film fixing groove is pushed toward the bottom wall part side by the inclined surface of the left and right side wall parts. In the film fixing groove, the spring can be arranged horizontally with the bottom wall portion, and the pressing force of the spring can be applied evenly to the left and right side wall portions to securely fix the synthetic resin film. If the angle formed by the straight portion of the portion with respect to the bottom wall surface is smaller than 45 degrees, it becomes difficult to accommodate three or more sets of the elastic locking members and the synthetic resin film in the film fixing groove. On the contrary, if the angle of the linear portion exceeds 65 degrees, the linear spring easily slips in the direction of dropping, and the elastic force of the elastic locking member mounted in the film fixing groove is effectively applied to the left and right side wall portions. This is because the film holding force becomes unstable. In particular, when the angle of the straight portion exceeds 80 degrees, the spring is remarkably easily dropped, and the function as a film stopper is greatly impaired.
Because.

  Further, it is desirable that the ratio of the depth to the opening width and the maximum width in the film fixing groove is 129 to 133: 175 to 185: 314 to 316, more preferably 130: 180: 315. By setting such a ratio, the maximum width of the film fixing groove can be made as small as possible while ensuring the opening width into which the elastic locking member can be inserted and the depth into which a plurality of springs can be inserted, The enlargement of the film stopper can be prevented.

  The film stopper member of the present embodiment can be provided with positioning hole rows for fixing the stopper member body via a locking tool at the center inside the bottom wall portion and on both sides thereof. This makes it possible to securely attach a locking tool such as a bolt and nut even when attaching a film stopper to a house construction material such as an unstable scaffold. Further, by arranging the locking tools alternately in the center and left and right positioning hole rows, the mounting strength of the locking tools can be increased as compared with the case where the locking tools are arranged in a straight line.

  The positioning hole row is a punch hole such as a concave portion arranged in parallel with each other on the center of the bottom wall portion and on the straight line on the left and right sides thereof. This makes it easy to work even in the case of bad conditions.

  Hereinafter, the Example of the film stop member which concerns on this invention is described concretely, referring drawings.

  FIG. 1 is an explanatory view of a greenhouse to which a film stopper member according to this embodiment is applied, FIG. 2 is a perspective view of the film stopper member, FIG. 3 is a perspective view showing a joining state of the film stopper members, and FIG. Is a front view thereof.

  As shown in FIG. 1, the greenhouse 1 is constructed by connecting a plurality of house construction materials 2 at predetermined locations with predetermined fasteners. The film stopper 10 is attached to the outside of the structure constructed by combining these house building materials 2 via a locking tool such as a bolt and nut. The house-forming synthetic resin film F is attached and fixed to the film fixing groove 15 of the film fixing member 10 together with the elastic locking member so as to be covered. In the figure, reference numeral 4 denotes an entrance formed on the wife face of the greenhouse 1.

  The synthetic resin film coated on the greenhouse is a so-called agricultural film, and a vinyl chloride film (vinyl chloride film) and a polyolefin film (PO film) are preferably used. In this example, a PO film having a better weather resistance than a vinyl chloride film is used. However, this PO film has the property that it is less likely to expand and contract than the PVC film, is weak against rubbing, and is easily damaged.

  To cover the structure of the synthetic resin film F, a film stopper member 10, which will be described in detail later, is installed between the vertically arranged house building materials 2, 2,. A part of the synthetic resin film F is inserted into the fixing groove 15 and a wavy linear spring S serving as an elastic locking member is attached and stretched. In order to prevent the stretched synthetic resin film F from being detached from the film stopper member 10 due to the force of wind or the like, the fastening band 3 is separately stretched from the synthetic resin film to an appropriate place. Yes.

  As shown in FIG. 2, the film stopper member 10 is formed by raising the bottom wall part 11 whose rear side is fixed to the house building material 2 and the left and right edges forming the longitudinal side of the bottom wall part 11 upward and obliquely upward. The left and right side wall portions 12 and 13 and the left and right side wall portions 12 and 13 are formed so that the front end sides thereof are bent inward and folded back to have a columnar space so that the front ends thereof are substantially parallel to the bottom wall portion 11. The folded portion 14, the film fixing groove 15 to which the synthetic resin film is clamped, the left and right side wall portions, and the side wall notches formed by swaging and cutting on one end side of the bottom wall portion are formed. Positioning hole rows 17a to 17c comprising punch holes each having a depth of about 0.5 mm and a diameter of about 0.5 mm, which are provided in three rows each on the center inside the bottom wall portion 11 and on both sides thereof. have.

  The film stopper member 10 has a length of, for example, about 2 m to 10 m. As shown in FIG. 3, the film fixing groove 15 of the other film stopper member is provided with the reduced connection portions 16 provided on both sides or one end portion thereof. Can be connected to each other and set to a predetermined length.

  When the left and right side wall portions 12 and 13 of the film stopper member 10 are raised from the side edges of the bottom wall portion 11, first, the metal plate is raised in a curved shape with an inclination angle of about 45 degrees with respect to the bottom wall portion 11. The bent portion 20 is formed by raising the metal plate, and the metal plate continuous from the bent portion 20 is raised linearly at an inclination angle of about 65 degrees with respect to the bottom wall portion 11 to form the straight portion 19.

  In this way, by changing the rising angle of the left and right side wall portions 12 and 13 in the middle to form the curved portion 20 and the straight portion 19, when the number of synthetic resin films F to be fixed is one, the curved portion The spring S is accommodated in the inner portion of the portion 20 so that the synthetic resin film F can be reliably fixed. And even if the synthetic resin film F to be fixed becomes a plurality of sheets, the spring S that cannot be accommodated in the inner portion of the curved portion 20 is accommodated in the inner portion of the linear portion 19 so that the plurality of synthetic resin films F are stably provided. It can be fixed.

  When the left and right side wall portions 12 and 13 are raised from the left and right ends of the bottom wall portion 11, the depth of the film fixing groove 15 formed between the bottom wall portion 11 and the left and right side wall portions 12 and 13 is 13 ±. It is 0.1 mm, the opening width is 18 ± 0.5 mm, and the maximum width is 31.5 ± 0.1 mm. Thus, by setting the ratio of the depth, opening width, and maximum width of the film fixing groove 15 to approximately 130: 180: 315 (that is, approximately 26:36:63), the spring S is applied to the film fixing groove 15. The maximum width can be reduced as much as possible while ensuring the insertable opening width and the depth that can accommodate the plurality of springs S, and the film stopper 10 can be prevented from being enlarged.

  Folding portions 14 are formed at the ends of the left and right side wall portions 12 and 13, respectively. That is, the front ends of the left and right side wall portions 12 and 13 are folded back so as to form a cylindrical space inside the film fixing groove 15 so that the end portions are substantially parallel to the bottom wall portion 11. Since the folding part 14 is arranged in the opening of the film fixing groove 15 in this way, it is not necessary to perform the film fixing work while paying attention not to catch the synthetic resin film F on the folding part 14. The work efficiency of the film fixing work can be improved. Further, it is possible to prevent the synthetic resin film F from being torn at the opening and being damaged to generate a useless film.

  Moreover, as shown in FIGS. 2-4, the edge part of the film stop member 10 which consists of the said structure forms the compression connection part 16 by swaging, and makes it a male side edge part, and the compression connection part 16 is formed. A plurality of film stopper members 10 can be appropriately connected by being slid into the end portion (female side end portion) of the film fixing groove 15 of the film stopper member 10 that has not been swaged. In particular, after pressurizing the end portion of the film stopper member 10 to be the contracted connecting portion 16 so as to be contracted from four sides during the swaging process, the opening side of the left and right side wall portions 12 and 13 is set to a predetermined depth, for example, a film stopper. The side wall notch portion can be provided by being processed so as to be cut at a depth of 1/3 to 1/2 with respect to the height of the member 19 main body. As a result, it is possible to form a reduced-sized coupling portion having a predetermined coupling strength, and to suppress the manufacturing cost of the film stopper member 10.

  Moreover, as shown in FIG.3 and FIG.4, it is made for the vertical width and right-and-left width of the shrinkage | contraction connection part 16 to become shorter than the vertical width and right-and-left width of the main-body part of the film stop member 10 which is not swaging processed. You can also. As a result, when the reduced connection portion 16 of the film stopper member 10 that has been swaged is slid into the end of the film stopper member 10 that has not been swaged, the reduced connection within the film fixing groove 15 of the film stopper member 10 is achieved. The part 16 is completely accommodated.

  However, in this case, as shown in FIG. 5 (a), when the contracted connecting portion 16 of the male end is inserted deeply into the female end, the left and right side wall portions 12 and 13 of the female end are on the male side. It expands and deforms along the left and right side wall portions 12 and 13 at the end.

  On the other hand, according to the film stopper member 10 provided with the male side end portion provided with the side wall notch portion in the swage processed portion, the left and right side wall portions 12 and 13 of the female side end portion even when inserted into the female side end portion. However, it does not expand and deform along the left and right side wall portions 12 and 13 of the male side end portion.

  That is, as shown in FIG. 5 (b), when the male side end is inserted into the female side end, when the entire contracted connecting portion 16 is fitted in the film fixing groove 15 at the female side end, the male side The folding portion end surface 14a and the female side folding portion end surface 14b come into contact with each other to serve as a stopper, thereby preventing further insertion.

  Therefore, deformation of the connecting portion between the film stopper members 10 can be prevented.

  In addition, according to the contracted connecting part 16 in which a part of the folding part 14 at the male side end part is cut out and the side wall notch part is provided, when the male side end part is inserted into the female side end part, the female side Since the folding part 14 at the end and the folding part 14 at the male side end do not overlap in the left-right direction, the opening width X near the middle part of the film stopper 10 and the coupling part opening width Y near the coupling part Can be made substantially the same length.

  Therefore, it is possible to prevent the connection portion opening width Y from becoming narrow, and the mounting property of the spring S can be improved.

  In this embodiment, the metal plate is bent to form the film stopper member 10 having the above-described configuration. However, the present invention is not limited to this, and a film stopper member having the same configuration can be formed by extrusion.

  When the synthetic resin film F is attached to the film stopper member 10, as shown in FIG. 6, the synthetic resin film F is inserted into the film fixing groove 15 from the opening side, and then from above the synthetic resin film F. A dedicated spring S meandering with a predetermined swing width according to the width of the film fixing groove 15 is inserted, and the synthetic resin film F is clamped by the spring S and the left and right side wall portions 12 and 13 of the film fixing groove 15. The synthetic resin film F is prevented from being detached from the film stopper member 10. When a plurality of synthetic resin films F are attached to the film fixing member 10 at the same time, the above-described film fixing operation is repeated every time one synthetic resin film F is fixed, and the synthetic resin film F to be fixed is fixed. The same number of springs S are inserted into the film fixing groove 15 and fixed.

  FIG. 7 is a cross-sectional view of four types of film stopper members including the film stopper member 10 (FIG. 7 (c)) according to the present embodiment, each of which has a different film fixing groove shape, and FIGS. It is the graph which showed the measurement result of the mechanical characteristic (bending rigidity (lx, ly) and torsional rigidity) of a film stop member.

  Table 1 shows data of measurement results of mechanical characteristics. In addition to the dimension specifications of the film stopper member, the bending rigidity (lx) in the direction along the surface of the bottom wall portion of the film stopper member and the bottom wall portion The measurement data of the cross-sectional performance of the bending rigidity (ly) and the torsional rigidity (lp) in the normal direction with respect to the surface is shown.

機械的特性の測定に供した４種のフィルム止め部材（ａ）〜（ｄ）のフィルム止め部材は、図７に示すようにそれぞれ以下のような形態的特徴を有している。
（ａ）比較例１：左右側壁部の開口部先端を外側に湾曲するようにして折込部を形成したフィルム止め部材である。
（ｂ）比較例２：左右側壁部上部にそれぞれ平行となるようにして箱状のフィルム定着部を形成したフィルム止め部材である。
（ｃ）本実施例：左右側壁部の先端側をそれぞれ内側に湾曲させて円柱状空間を有するように折り返してその先端が底壁部に略平行となるような折込部を設けた実施例となるフィルム止め部材である。
（ｄ）比較例３：左右側壁部の先端側を外側に２段階に屈曲させて折込部とするとともに、フィルム定着溝を構成する左右側壁部の下部を湾曲状にして上部を直線状に形成するようにしたフィルム止め部材である。

The four types of film stoppers (a) to (d) used for measuring the mechanical properties have the following morphological features as shown in FIG.
(A) Comparative Example 1: A film stopper member in which a folded portion is formed such that the front ends of the openings of the left and right side wall portions are curved outward.
(B) Comparative Example 2: A film stopper member in which box-like film fixing portions are formed so as to be parallel to the upper portions of the left and right side wall portions.
(C) This embodiment: an embodiment in which the front end sides of the left and right side wall portions are respectively bent inward and folded back so as to have a columnar space, and a folding portion is provided so that the front end is substantially parallel to the bottom wall portion. It is a film stopper member.
(D) Comparative Example 3: The front end side of the left and right side wall portions is bent outwardly in two stages to form a folding portion, and the lower portion of the left and right side wall portions constituting the film fixing groove is curved and the upper portion is formed in a straight line. It is the film stopper member made to do.

  If the spring S is to be attached to the film stopper, as shown in FIG. Comparing the angles α and β formed with the side wall portion of the film stopper member at this time, the spring S becomes the film fixing groove (15) when the angle β formed with the film fixing groove (15) side is larger than α. It is easy to push in and it is easy to have a parallel stable posture.

  Looking at the relationship between α and β, it can be seen that except for Comparative Example 2, there is such a relationship of α <β, and there is no problem with the wearability.

  Moreover, the preferable range of the angle of the linear part 19 with respect to the bottom wall part 11 is 45-80 degree | times here, More preferably, it is 60-73 degree | times.

  More specifically, as shown in FIG. 11A, first, as shown in FIG. 11A, the upper contact L of the spring S, the intersection M of the extension line of the spring S and the extension line of the bottom wall portion 11, and the aforementioned contact L to the bottom wall. Consider a triangle T surrounded by a perpendicular line down to the part 11 and the intersection N of the bottom wall part 11. Note that FIG. 11 is schematically shown for convenience of explanation, and the angles and lengths, the relative sizes of the film stopper member 10 and the spring S, and the like are not necessarily shown accurately.

  Here, for example, the minimum inner diameter width W1 of the film stopper member 10 is 22.9 mm, the maximum inner diameter width W2 is 30.0 mm, the maximum inner height H is 9.25 mm, and the diameter of the spring S is 2 mm.

  In this case, α and β are equal to each other when α = β = 90 degrees. In this case, the vector of the elastic force of the spring S and the vector of the normal force from the straight line portion 19 are on a straight line. Therefore, the spring S does not move in the direction in which the spring S is detached from the film stopper member 10 or in the direction in which it is accommodated.

Therefore, when a preferable range of the angle U of the linear portion 19 with respect to the bottom wall portion 11 is examined so that the spring S is accommodated inward of the film stopper member 10 based on this state, as shown in FIG. In addition, considering the diameter of the spring S, a right triangle T ′ having a base of 26.45 mm and a height of 7.25 mm can be obtained. The right triangle T ′ composed of the vertex L ′, the vertex M ′, and the vertex N ′ is similar to the right triangle T.
Then, when the value of θ ° is obtained from this right triangle T ′, the trigonometric function theorem
tanθ ° = 7.25 ÷ 24.45
A value of θ ° = 0.295235517tan ⁻¹ = 16.51632873 ° is derived.

Here, the angle U of the straight portion 19 with respect to the bottom wall portion 11 is:
U ° = β ° -θ ° = 90 ° -16.5163873 ° ≈73 °
It becomes. However, depending on the contact position between the spring S having a circular cross section and the straight portion 19, the angle U is considered to be allowed up to about 80 °.

  On the other hand, since the inward rising angle V ° of the bending portion 20 is 45 °, the angle U is preferably 45 ° or more.

  In addition, as the maximum angle U is smaller than 80 °, the spring S can be accommodated inside the film stopper 10.

  Therefore, the preferable range of the angle of the straight portion 19 with respect to the bottom wall portion 11 is 45 to 80 degrees, more preferably 60 to 73 degrees.

  When constructing the greenhouse 1, a plurality of film stoppers 10 are used at predetermined intervals in the vertical direction. For example, NO. 1-NO. When the five film stopper members 10 of No. 5 are used, the order in which the films are stopped is usually not one from the other, but NO. 1, NO. 5, NO. 3, NO. 2, NO. Do the tension like 4. When using a PO-based film that is inferior in elasticity to a PVC-based film, 3-NO. 5, the film often floats from the bottom of the film fixing groove 15. Therefore, the spring S is locked at the upper position of the film fixing groove (15). Even when a plurality of springs S are used in an overlapping manner, the uppermost spring S is locked at the upper position of the film fixing groove (15).

  Thus, when the spring S is locked at the upper position of the film fixing groove (15), there is a possibility that the spring S will come off as it is due to the influence of wind or the like. In particular, in Comparative Examples 1 and 3, the risk is great. In the film stopper member 10 and the comparative example 2 according to the present embodiment, since the locking portion 18 protrudes inward, the spring S can be prevented from coming off as much as possible.

  Thus, from the viewpoint of the mountability of the spring S and the ability to prevent the spring S from being removed, only the film stopper member 10 according to the present embodiment sufficiently satisfies both performances, and is superior to the other comparative examples 1 to 3. It is clear that

  As shown in FIGS. 8 to 10, the film stopper member 10 (FIG. 7C) of this example is superior to the film stopper members of Comparative Examples 1 to 3 in terms of bending rigidity and torsional rigidity. I understand that. The film fixing member having the box-shaped film fixing groove of Comparative Example 2 has almost the same mechanical characteristics as the example, but a plurality of synthetic resin films are mounted in the film fixing groove. In this case, it is difficult to stably dispose the spring, and it can be said that the embodiment is superior in terms of usability and the like.

  Table 2 is a comparative table of data evaluating the use characteristics of the film stopper member 10 (c) according to the present example and the film stopper members (a), (b), and (d) according to the above-described comparative examples. FIG. 12 is a cross-sectional view of the film members (a) to (d), in which three springs are included.

表２においては、フィルム定着溝に装着される合成樹脂フィルムを３枚としてスプリングを３本用いた場合の評価、合成樹脂フィルムの収まり具合の評価、ポリオレフィンフィルムの保持強度に対する評価、フィルム展張時の破れ評価、フィルム貼り付け作業時に靴など踏みつけた場合の破れ評価、錆びに対する抵抗性評価、前記機械的特性の評価がそれぞれ示されている。これらの各評価においては、◎印のものを最良評価として◎→○→△→▲→×の順に評価をランク付けされたもので表示している。

In Table 2, the evaluation when using three springs with three synthetic resin films mounted in the film fixing groove, the evaluation of the fit of the synthetic resin film, the evaluation of the holding strength of the polyolefin film, and the film extension A tear evaluation, a tear evaluation when a shoe or the like is stepped on during film application work, a resistance evaluation against rust, and an evaluation of the mechanical characteristics are shown. In each of these evaluations, the ones marked with ◎ are indicated as the best evaluation, and the evaluations are ranked in the order of ◎ → ○ → △ → ▲ → x.

  As is apparent from Table 2, the film stopper member of this example (shown in (c) of Table 2) is the best (◎) in all the above evaluations. In particular, it can be seen that the holding strength in the case of holding three synthetic resin films and the strength of the main body are excellent. Therefore, the film stopper member of the embodiment can secure the structural strength necessary to maintain the entire greenhouse while reducing the weight of the material to the minimum, and the synthetic resin film of two layers or three layers or more can be secured. It can be reliably and effectively held, and it is understood that it is excellent in productivity and economy.

  Next, in the film stopper member 10 according to the present invention, some embodiments are described in which the shapes of the tips of the left and right side wall portions 12 and 13 are appropriately changed to further improve the functionality of the folding portion 14 or the enormous portion 30. .

Figure 13 shows a film stop member 10 according to the implementation mode, Fig. 13 (a) shows a sectional view of a film stop member 10 which has been described above. 13 (b) and 13 (c) have the same basic structure as that of FIG. 13 (a), but are different in the shape of the folded portion 14 formed by folding the ends of the left and right side wall portions 12 and 13 inward.

  First, the folding portion 14 in FIG. 13A will be described. The first bending portion 21 is formed by bending slightly outward from the upper end of the straight portion 19, and the second bending portion 22 and the third bending portion 23 are formed. The fourth bent portion 24 is smoothly bent in the inner winding direction while being positioned on substantially the same arc, and is formed into a circumferential curved surface shape and connected to the fifth bent portion 25.

  The fifth bent portion 25 is formed so that it is further folded back inwardly and the vicinity of the tip thereof is substantially parallel to the bottom wall portion 11, and the surface substantially parallel to the bottom wall portion 11 is formed as the locking portion 18. It is said.

  Further, the tip 18 a turned back at the fifth bent portion 25 is brought into contact with the vicinity of the second bent portion 22.

  Thus, by bending each of the bent portions 21 to 25 to form the folded portion 14, a space A having a substantially semicircular shape in cross section can be formed inside the folded portion 14. 10 rigidity can be improved.

  Further, an elastic locking member (for example, a wavy line spring) fitted into the film fixing groove 15 by a locking portion 18 formed by being folded back so as to be substantially parallel to the bottom wall portion 11 at the fifth bent portion 25. Can be effectively prevented from being inadvertently detached from the film stopper 10.

  Furthermore, since the tip 18a turned back at the fifth bent portion 25 is brought into contact with the vicinity of the second bent portion 22, moisture such as rain water or condensed water is prevented from entering the space A. Therefore, deterioration of the durability of the film stopper 10 due to corrosion can be prevented as much as possible.

  In addition, the front end 18a of the locking portion 18 is brought into contact with the vicinity of the inner peripheral surface of any one of the bent portions 21 to 25 (in this embodiment, the inner peripheral surface of the second bent portion 22 is contacted). When the synthetic resin film F is clamped on the film fixing member 10, it is possible to prevent the synthetic resin film F from coming into contact with the edge of the tip end portion 18a or the like to cause perforation or damage.

  FIG. 13B is characterized in that the folding portion 14 is formed in a substantially rectangular shape in cross section. That is, the first bent portion 21 is bent slightly outward from the upper end of the straight portion 19 and further bent upward substantially perpendicularly to the bottom wall portion 11 to form the second bent portion 22. Yes.

  The third bent portion 23 is bent inward at an angle of about 90 degrees so as to be substantially parallel to the bottom wall portion 11, and the fourth bent portion 24 is lowered substantially perpendicularly to the bottom wall portion 11. It is bent and connected to the fifth bent portion 25.

  The fifth bent portion 25 is further bent inward at an angle of about 90 degrees so that the vicinity of the tip thereof is substantially parallel to the bottom wall portion 11, and is substantially parallel to the bottom wall portion 11. This surface is used as a locking portion 18.

  Further, the tip 18a turned back at the fifth bent portion 25 is brought into contact with the vicinity of the inner wall of the second bent portion 22 as in FIG.

  As shown in FIG. 13B, the bent portions 21 to 25 are bent inward to form the folded portion 14, thereby forming a space A having a substantially rectangular shape in sectional view inside the folded portion 14. And the rigidity of the film stopper 10 can be improved.

  In addition, as described in the description of FIG. 13A, the locking portion 18 prevents the elastic locking member from falling off, the corrosion caused by the moisture entering the space A, the edge of the tip portion 18a, and the like. It is possible to prevent the synthetic resin film F from being damaged by contact.

  FIG. 13C is characterized in that the folding part 14 is formed by a curved surface and corners. That is, the first bent portion 21 is formed by bending slightly outward from the upper end of the straight portion 19, and the second bent portion 22 and the third bent portion 23 are smoothly wound inward while being positioned on substantially the same arc. It is bent in the direction to form a circumferential curved surface and is connected to the fourth bent portion 24.

  The fourth bent portion 24 bends downward substantially perpendicularly to the bottom wall portion 11, and the fifth bent portion 25 is further bent inward at an angle of about 90 degrees, and the vicinity of the tip thereof is the bottom wall portion. 11, the surface substantially parallel to the bottom wall portion 11 is used as a locking portion 18.

  Further, the tip end portion 18a turned back at the fifth bent portion 25 is brought into contact with the vicinity of the inner wall side of the second bent portion 22 as in FIGS. 13 (a) and 13 (b).

  Thus, as shown in FIG. 13C, the space A is also formed in the inside of the folded portion 14 by forming the folded portion 14 by bending the bent portions 21 to 25 inward. It is possible to improve the rigidity of the film stopper member 10, prevent the elastic locking member from falling off by the locking portion 18, prevent corrosion caused by moisture entering the space A, and edge of the tip end portion 18 a. It is possible to prevent the synthetic resin film F from being damaged due to contact with the like.

  FIG. 13D is characterized in that the folding portion 14 is formed in a substantially triangular shape in cross section. That is, the first bent portion 21 is formed by bending slightly outward from the upper end of the straight portion 19, and the second bent portion 22 is extended at an acute angle inwardly obliquely upward, and the third bent portion 23 is formed. It has a substantially planar shape and is connected to the fourth bent portion 24.

  The fourth bent portion 24 bends downward substantially perpendicularly to the bottom wall portion 11, and the fifth bent portion 25 is further bent inward at an angle of about 90 degrees, and the vicinity of the tip thereof is the bottom wall portion. 11, the surface substantially parallel to the bottom wall portion 11 is used as a locking portion 18.

  Further, the tip 18a turned back at the fifth bent portion 25 is brought into contact with the vicinity of the inner wall side of the second bent portion 22 in the same manner as in FIGS. 13 (a), (b), and (c).

  Thus, as shown in FIG. 13 (d), the space A is formed inside the folding part 14 by forming the folding part 14 by bending the bent parts 21 to 25 inward. It is possible to improve the rigidity of the film stopper member 10, prevent the elastic locking member from falling off by the locking portion 18, prevent corrosion caused by moisture entering the space A, and edge of the tip end portion 18 a. It is possible to prevent the synthetic resin film F from being damaged due to contact with the like.

FIG. 14 shows a film stopper member 10 as a reference example , and FIGS. 14A, 14B, and 14C have the same basic structure as the film stopper member 10 shown in the previous embodiment. It differs in the shape of the folding part 14 formed by folding the front ends of the left and right side wall parts 12 and 13 outward.

  First, the folding portion 14 in FIG. 14A will be described. The first bent portion 21 is formed by bending inward from the upper end of the straight portion 19 so as to be substantially parallel to the bottom wall portion 11. A surface substantially parallel to the bottom wall portion 11 is used as a locking portion 18.

  Then, the second bent portion 22, the third bent portion 23, the fourth bent portion 24, and the fifth bent portion 25 are smoothly bent in the outer winding direction while being positioned on substantially the same arc. The tip portion 25 a is in contact with the vicinity of the first bent portion 21.

  Thus, by bending the bent portions 21 to 25 outward to form the folded portion 14, a space A having a substantially semicircular shape in cross section can be formed inside the folded portion 14. The rigidity of the film stopper member 10 can be improved.

  In addition, as described in the description of the first embodiment, the elastic locking member is prevented from falling off by the locking portion 18, the corrosion caused by moisture entering the space A, the edge of the tip portion 25a, and the like. It is possible to prevent the synthetic resin film F from being damaged by contact.

  FIG. 14B is characterized in that the folding part 14 is formed in a substantially rectangular shape in cross section. That is, the first bent portion 21 is formed by bending inwardly from the upper end of the straight portion 19 so as to be substantially parallel to the bottom wall portion 11 and bent upward substantially perpendicularly to the bottom wall portion 11. Thus, the second bent portion 22 is formed. Here, a surface substantially parallel to the bottom wall portion 11 formed between the first bent portion 21 and the second bent portion 22 is used as the locking portion 18.

  The third bent portion 23 is bent outward at an angle of about 90 degrees so as to be substantially parallel to the bottom wall portion 11, and the fourth bent portion 24 is lowered downward substantially perpendicularly to the bottom wall portion 11. It is bent and connected to the fifth bent portion 25.

  The fifth bent portion 25 is further bent inward, and the distal end portion 25 a is configured to abut on the vicinity of the first bent portion 21.

  Thus, as shown in FIG. 14B, the bent portions 21 to 25 are bent outward to form the folded portion 14, and the inner portion of the folded portion 14 has a substantially rectangular shape in sectional view. The space A can be formed, the rigidity of the film stopper member 10 can be improved, the elastic locking member can be prevented from falling off by the locking portion 18, and the corrosion caused by moisture entering the space A can be prevented. Further, it is possible to prevent the synthetic resin film F from being damaged due to contact with the edge or the like of the distal end portion 25a.

  FIG. 14C is characterized in that the folding part 14 is formed by a curved surface and corners. That is, the first bent portion 21 is formed by bending inwardly from the upper end of the straight portion 19 so as to be substantially parallel to the bottom wall portion 11 and bent upward substantially perpendicularly to the bottom wall portion 11. The second bent portion 22 is formed and connected to the third bent portion 23. Here, a surface substantially parallel to the bottom wall portion 11 formed between the first bent portion 21 and the second bent portion 22 is used as the locking portion 18.

  The third bent portion 23 is bent outward at an angle of about 90 degrees so as to be substantially parallel to the bottom wall portion 11 and connected to the fourth bent portion 24.

  The fourth bent portion 24 and the fifth bent portion 25 are formed in a circumferentially curved shape by being smoothly bent in the outer winding direction while being positioned on substantially the same arc, and the fifth bent portion 25 continues on the same arc. The tip 25a is bent inward and is configured to contact the vicinity of the first bent portion 21.

  Thus, as shown in FIG. 14C, the bent portions 21 to 25 are bent outward to form the folded portion 14, and the inner portion of the folded portion 14 has a substantially rectangular shape in cross section. The space A can be formed, the rigidity of the film stopper member 10 can be improved, the elastic locking member can be prevented from falling off by the locking portion 18, and the corrosion caused by moisture entering the space A can be prevented. It is possible to prevent the synthetic resin film F from being damaged by coming into contact with the edge or the like of the distal end portion 25a.

  FIG. 14D is characterized in that the folding portion 14 is formed in a substantially triangular shape in cross section. That is, the first bent portion 21 is formed by bending inwardly from the upper end of the straight portion 19 so as to be substantially parallel to the bottom wall portion 11 and bent upward substantially perpendicularly to the bottom wall portion 11. The second bent portion 22 is formed and connected to the third bent portion 23. Here, a surface substantially parallel to the bottom wall portion 11 formed between the first bent portion 21 and the second bent portion 22 is used as the locking portion 18.

  The third bent portion 23 is extended at an acute angle and obliquely outward and downward, and the fourth bent portion 24 has a substantially planar shape and is connected to the fifth bent portion 25.

  The fifth bent portion 25 is bent again inwardly at an acute angle, and the tip portion 25 a is configured to abut on the vicinity of the first bent portion 21.

  Thus, as shown in FIG. 14 (d), the bent portions 21 to 25 are bent outward to form the folded portion 14. The space A can be formed, the rigidity of the film stopper member 10 can be improved, the elastic locking member can be prevented from falling off by the locking portion 18, and the corrosion caused by moisture entering the space A can be prevented. It is possible to prevent the synthetic resin film F from being damaged by coming into contact with the edge or the like of the distal end portion 25a.

FIG. 15 shows a film stopper member 10 as a further reference example , and FIGS. 15A, 15B and 15C show the basic structure of the film stopper member 10 shown in the first and second embodiments. However, it is different in that a huge portion 30 is formed at the tip of the left and right side wall portions 12 and 13.

  First, the enormous portion 30 in FIG. 15A will be described. The enormous portion 30 having a substantially semicircular cross-sectional view is provided at the upper end of the linear portion 19. Then, a surface substantially parallel to the bottom wall portion 11 is formed on the lower surface of the enormous portion 30 protruding toward the film fixing groove 15 to form the locking portion 18.

  Thus, by forming the enormous portion 30 as shown in FIG. 15A, the rigidity of the film stopper member 10 can be improved, and the elastic locking member can be removed by the locking portion 18. It can be prevented as much as possible.

  In FIG. 15B, an enormous portion 30 having a substantially rectangular shape in cross section is provided at the upper end of the straight portion 19. Then, a surface substantially parallel to the bottom wall portion 11 is formed on the lower surface of the enormous portion 30 protruding toward the film fixing groove 15 to form the locking portion 18.

  Thus, by forming the enormous portion 30 as shown in FIG. 15B, the rigidity of the film stopper member 10 can be improved, and the elastic locking member can be removed by the locking portion 18. It can be prevented as much as possible.

  15 (c), the enormous portion outer wall 30a side is formed in a curved shape as shown in FIG. 15 (a) at the upper end of the straight portion 19, and the enormous portion inner wall 30b side is rectangular as shown in FIG. 15 (c). The enormous portion 30 formed in the above is disposed. Then, a surface substantially parallel to the bottom wall portion 11 is formed on the lower surface of the enormous portion 30 protruding toward the film fixing groove 15 to form the locking portion 18.

  Thus, by forming the enormous portion 30 as shown in FIG. 15C, the rigidity of the film stopper member 10 can be improved, and the elastic locking member can be removed by the locking portion 18. It can be prevented as much as possible.

  In FIG. 15D, the enlarging portion outer wall 30a side is formed in a curved surface shape as shown in FIG. Is provided. Then, a surface substantially parallel to the bottom wall portion 11 is formed on the lower surface of the enormous portion 30 protruding toward the film fixing groove 15 to form the locking portion 18.

  Thus, by forming the enormous portion 30 as shown in FIG. 15D, the rigidity of the film stopper member 10 can be improved and the elastic locking member can be removed by the locking portion 18. It can be prevented as much as possible.

  FIG. 16 is a perspective view of a sheet material fastener applied to the film fastening member 10, and FIG. 17 is an explanatory view showing a fastening state of the sheet material fastener.

  The film stopper member 10 has a folded portion formed such that the front end sides of the left and right side wall portions are respectively bent inward and folded back so as to have a cylindrical space, and the front end thereof is substantially parallel to the bottom wall portion. Therefore, as shown in FIG. 17, the synthetic resin film F for the greenhouse, the fastening band 3 and the like are fixed through the sheet material fastener 50 attached to the film fixing groove 15.

  The sheet material fastener 50 is made of aluminum or aluminum alloy manufactured by extrusion molding or the like, and as shown in FIG. 16, a band plate-like bottom surface portion 51 whose back surface is in contact with the tightening band 3 that is a sheet material. A connecting portion 52 erected from one longitudinal side of the bottom surface portion 51, and a strip-shaped upper surface portion 53 that is integrally formed at the upper end of the connecting portion 52 and is provided in parallel with the bottom surface portion 51. Thus, it is formed in a substantially letter-like shape in cross-sectional view. In addition, as the length of the sheet material fastener 50, it can be set as appropriate according to the sheet material to be fastened. If the fastening band 3 is fastened as in the present embodiment, it may be appropriately cut to a length.

  As shown in FIG. 17, the bottom surface portion 51 of the sheet material fastener 50 can be disposed in the film fixing groove 15 of the film stopper member 10, and the width of the bottom surface portion 51 is the opening portion of the film stopper member 10. While being formed wider than the width dimension, it is formed narrower than the width dimension of the bottom wall portion 11 of the film stopper member 10.

  In addition, one longitudinal side edge of the bottom surface portion 51 is a bulging portion 51 a having a predetermined round shape and having a substantially circular appearance, and the bottom surface portion 51 is formed in the film fixing groove 15 of the film stopper member 10. The bulging portion 51 a can be engaged with the inner sides of the left and right side wall portions 12 and 13 of the film stopper member 10.

  Further, one long side edge portion of the bottom surface portion 51 protrudes outward from the connecting portion 52 to form an overhang portion 51b. By providing the overhang portion 51b, the sheet material fastener 50 is fixed to the film. When the film fixing groove 15 of the member 10 is mounted, the protruding portion 51 b can be engaged with the left and right side wall portions 12 and 13 on the other side of the film stopper member 10.

  On the upper surface portion 53, an engagement piece portion 53 a that engages with the upper ends of the left and right side wall portions 12, 13 on the other side of the film stopper member 10 is formed so as to protrude outside the bottom surface portion 51 from the upper end of the connecting portion 52. At the same time, an end portion of the engagement piece 53a is also formed with a bulging portion 53c having a predetermined round shape and having a substantially circular appearance.

  Further, as shown in FIG. 16, a fastener bending portion 54 is formed between the engagement piece portion 53 a and the connecting portion 52, and the rounded portion of the fastener bending portion 54 is provided in the film stopper member 10. When the bottom surface 51 is mounted in the film fixing groove 15 of the film stopper member 10 so that the fastener bending portion 54 and the folding portion 14 are as close as possible to each other. Yes.

  Further, the upper surface portion 53 is formed with a protruding piece portion 53b that protrudes in the opposite direction to the protruding direction of the engaging piece portion 53a. In the present embodiment, the connecting portion 52 that connects the bottom surface portion 51 and the top surface portion 53 described above has a shape inclined inward so as to correspond to the left and right side wall portions 12 and 13 of the film stopper member 10. The width of 51 can be made as wide as possible within the above-described range.

  Furthermore, since the sheet material fastener 50 is urged by the spring S, the overhanging portion 51b is also pressed against and engaged with the inner side of the left and right side wall portions 12 and 13 of the film stopper member 10, even if the direction described above is Even if the reverse force acts on the tightening band 3, the sheet material fastener 50 does not easily fall off from the film fixing groove 15 of the film stopper member 10.

  As described above, the film fixing member of the present invention has the folded portion so that the front end sides of the left and right side wall portions are bent inward and folded back so as to have a columnar space, and the front end is substantially parallel to the bottom wall portion. The scope of the present invention falls within the scope of the present invention. For example, in the present embodiment, the reduced-shaped connecting portion 16 having the side wall notch portion is provided as a connecting portion for joining the film stopper members to each other, but the connecting portion formed only by ordinary swaging is provided. The present invention can also be applied to a film stopper member.

  Moreover, the number of each bending parts 21-25 formed in the folding part 14 formed in the front-end | tip of the right-and-left side wall parts 12 and 13 can be suitably increased / decreased according to a use, and is not specifically limited.

DESCRIPTION OF SYMBOLS 1 Plastic house 2 House construction material 3 Tightening band 4 Plastic house entrance / exit 10 Film stop member 11 Bottom wall part 12, 13 Left and right side wall part 14 Folding part 15 Film fixing groove 16 Shrinking connection part 17a-17c Positioning hole row 50 Sheet fastening Tool 51 Bottom surface portion 51a Swelling portion 51b Overhanging portion 52 Connection portion 53 Upper surface portion 53a Engagement piece portion 53b Projection piece portion F Synthetic resin film S Spring (elastic locking member)

Claims (4)

A film stopper member for covering and fixing a synthetic resin film on a house construction material,
A long strip-like bottom wall portion whose back side is fixed to the house construction material,
Left and right side wall portions formed by raising the left and right end edges forming the longitudinal side of the bottom wall portion obliquely upward inward, respectively;
A folding part formed by bending the tip of the left and right side wall parts inward so as to have a cylindrical space; and
Surrounded by the left and right side wall portions having the folding portion and the bottom wall portion, a film fixing groove is formed in which a synthetic resin film is clamped by an elastic locking member mounted therein,
The left and right side wall portions have a curved portion formed by bending from an edge of the bottom wall portion, and a straight portion formed between the curved portion and the folding portion,
The folding portion has a bent portion formed by bending the distal ends of the left and right side wall portions outward from the upper end of the linear portion and sequentially bending in the inner winding direction, and further folding back in the inner winding direction. The film stopper member is characterized in that an engaging portion capable of engaging the elastic engaging member is formed in the folded portion . The straight line part of the said right and left side wall part is set to 45 to 80 degree | times whose angle which the said bottom wall part surface makes is larger than the inward raising angle of the said curved part. Film stopper . The film locking member according to claim 1 , wherein the locking portion is formed in a part of the folding portion substantially parallel to the bottom wall portion . On one end side of the left and right side wall portions and the bottom wall portion, there is provided a reduced connection portion that fits into a film fixing groove of the other film stopper member to be connected, and the reduced connection portion includes the left and right side walls. film stop member according to any one of claims 1 to 3, characterized by having a side wall notch portion formed by notching a part of the section.

Images