JP2020130142A - Sheet fixing rail for simple type structure - Google Patents

Abstract

To provide a sheet fixing rail for a simple type structure capable of facilitating a coupling work in series.SOLUTION: A sheet fixing rail 10 which is attached to rod-shaped members of a simple type structure which is formed of members containing a plurality of rod-shaped members and whose surface is at least partially covered with a sheet, comprises: a fixing groove 11 into which a part of the sheet and a linear spring for fixing the part are inserted. The fixing groove comprises: a bottom wall part 12; a pair of curve parts 13 formed into a curve shape; and a pair of side wall parts 14. An end part of the sheet fixing rail in a longitudinal direction comprises: a connection bottom wall part 62; a pair of connection curve parts 63; and a pair of connection side wall parts 64, and there is formed a contracted coupling end part 60 where at least the connection curve parts and connection side wall parts are formed into a contracted shape inward of the fixing groove with respect to the curve parts and the side wall parts. An end edge part 64A on an opposite side of the connection curve part on the connection side wall part is inclined to a direction approaching to the connection bottom wall part as extending toward a tip end 60A side of the contracted coupling end part.SELECTED DRAWING: Figure 13

Description

The present invention relates to a seat fixing rail used for fixing a seat that covers at least a part of the surface of a simple structure, for example, a simple structure such as an agricultural house, a simple warehouse, or a simple garage. It can be used for.

Patent Document 1 below shows a seat fixing rail used for fixing and covering at least a part of the surface of a simple structure such as an agricultural house constructed by a member including a plurality of rod-shaped members. Has been done. This seat fixing rail is a rail attached to a rod-shaped member which is a constituent member of a simple structure in which a seat is covered with at least a part of the surface, and is for fixing a part of the seat and a part of the seat. It has a fixing groove into which a wavy or substantially wavy linear spring is inserted, and the fixing groove is formed in an outwardly curved shape on both sides of the bottom wall portion and the width direction of the bottom wall portion. It is formed including a pair of curved portions and a pair of side wall portions rising from these curved portions. Further, at the end portion of the seat fixing rail in the length direction, a connecting bottom wall portion connected to the bottom wall portion, a pair of connecting curved portions connected to the pair of curved portions, and a pair of side wall portions are provided. A connecting end portion formed including a pair of connected connecting side wall portions is provided, and this connecting end portion is at least a pair of a connecting bottom wall portion, a pair of connecting curved portions, and a pair of connecting side wall portions. The connecting curved portion and the pair of connecting side wall portions are reduced connecting end portions formed in a shape reduced inward of the fixing groove with respect to the pair of curved portions and the pair of side wall portions.

Japanese Unexamined Patent Publication No. 2007-274909

When a simple structure such as an agricultural house constructed by members including a plurality of rod-shaped members has a large dimension in the front-rear direction, etc., a plurality of seat fixing rails should be connected in series. For this series connection, for the above-mentioned seat fixing rail, the above-mentioned reduced connecting end provided on one seat fixing rail is the end of another seat fixing rail. Since it is inserted inside, it is necessary to devise a way to easily perform this series connection work.

An object of the present invention is to provide a rail for fixing a seat of a simple structure that facilitates a series connection operation.

The seat fixing rail of the simple structure according to the present invention is a rail that is constructed by a member including a plurality of rod-shaped members and is attached to the rod-shaped member of the simple structure in which at least a part of the surface is covered with the sheet. It has a fixing groove into which a part of the sheet and a wavy or substantially wavy linear spring for fixing the part are inserted, and the fixing groove is a bottom wall portion and the bottom wall portion. A pair of curved portions formed in an outwardly curved shape on both sides in the width direction of the above, and a pair of side wall portions rising from these curved portions are formed, and the bottom portion is formed at an end portion in the length direction. A connection formed by including a connection bottom wall portion connected to the wall portion, a pair of connection curved portions connected to the pair of curved portions, and a pair of connecting side wall portions connected to the pair of side wall portions. An end portion is provided, and the connecting end portion is formed by at least the pair of connecting curved portions and the pair of connecting side wall portions among the connecting bottom wall portion, the pair of connecting curved portions, and the pair of connecting side wall portions. In the seat fixing rail of the simple structure, which is a reduced connecting end portion formed in a shape reduced inward of the fixing groove with respect to the pair of curved portions and the pair of side wall portions. The end edge portion of the pair of connection side wall portions on the opposite side of the pair of connection curved portions is inclined in a direction approaching the connection bottom wall portion as it extends toward the tip end side of the reduced connection end portion. It is a feature.

As described above, in the seat fixing rail of the simple structure according to the present invention, the end edge portion of the pair of connecting side wall portions on the opposite side of the pair of connecting curved portions extends toward the tip end side of the reduced connecting end portion. Therefore, since it is inclined in the direction approaching the connection bottom wall, when connecting two seat fixing rails in series, one of these seat fixing rails is shrunk provided on one of the seat fixing rails. The inclined end edge portion facilitates the work of inserting the shape connecting end portion inside the end portion of the other seat fixing rail and connecting the rails.

In the above invention, a rib portion having a protrusion amount in the thickness direction of the connection bottom wall portion may be formed on the connection bottom wall portion with a length in the length direction of the reduced connection end portion.

According to this, as described above, the end edge portion of the pair of connection side wall portions on the opposite side of the pair of connection curved portions extends toward the tip end side of the reduced connection end portion, and thus approaches the connection bottom wall portion. Even if it is inclined, the strength of the connection bottom wall portion in the thickness direction of the reduced connection end portion can be improved by the rib portion.

Further, when a rib portion having a protrusion amount in the thickness direction of the connection bottom wall portion is formed on the connection bottom wall portion with a length in the length direction of the reduced connection end portion, the rib portion is formed. The portion may be projected toward the outside of the fixing groove, but is preferably projected toward the inside of the fixing groove.

Assuming that the rib portion protrudes toward the inside of the fixing groove, the reduced connecting end portion provided on the one seat fixing rail is inserted inside the end portion of the other seat fixing rail. When connecting the rails of the above, this connecting work can be smoothly performed without being affected by the rib portion.

Further, the length of the rib portion may be within the length range of the reduced connecting end portion, in other words, the length of the rib portion may be within the length range of the connecting bottom wall portion. It may have a length that exceeds the boundary between the portion and the bottom wall portion.

Assuming that the rib portion has a length exceeding the boundary between the connecting bottom wall portion and the bottom wall portion in this way, the rib portion is formed in the thickness direction of the connecting bottom wall portion with respect to the above-mentioned reduced connecting end portion. The strength can be improved more effectively.

Further, the position of the tip end side of the reduced connecting end portion in the rib portion may match the position of the tip end portion of the connection bottom wall portion, or the tip end side end of the reduced connecting end portion in the rib portion. The position of the portion may be a position retracted from the tip of the connecting bottom wall portion toward the bottom wall portion.

As in the latter case, assuming that the position of the end portion of the rib portion on the tip end side of the reduced connecting end portion is a position retracted from the tip end of the connecting bottom wall portion toward the bottom wall portion side, the tip of the connecting bottom wall portion is Since a rib portion having a protrusion amount in the thickness direction of the connection bottom wall portion is not provided, the reduced connecting end portion provided on the one seat fixing rail is inside the end portion of the other seat fixing rail. It will be easier to insert into and connect these rails.

Further, when the position of the end portion on the tip end side of the reduced connecting end portion in the rib portion is set to the position retracted from the tip end of the connecting bottom wall portion toward the bottom wall portion side, the reduced connecting end portion in the rib portion. A recess extending in the length direction of the reduced connecting end may be formed between the end on the tip side of the device and the tip of the connecting bottom wall.

According to this, when the reduced connecting end is attached to the rod-shaped member of the simple structure with a fastener such as a tex screw together with the other seat fixing rail connected by the reduced connecting end. The fastener can be positioned by the recessed portion provided in the connection bottom wall portion.

Further, in the seat fixing rail of the simplified structure according to the present invention, the connecting bottom wall portion may be reduced to the inside of the fixing groove with respect to the bottom wall portion, or the connecting bottom wall portion may be formed. , The bottom wall portion may be connected to the bottom wall portion without a step in the inside / outside direction of the fixing groove.

Assuming that the connecting bottom wall portion is connected to the bottom wall portion without a step in the inward and outward directions of the fixing groove as in the latter case, the reduced connecting end portion is reduced by shrinking such as swaging. The shape of the mold for forming the mold can be simplified accordingly, and the reduced connecting end portion formed by the shrinking process can be finished in a more accurate shape.

Further, in the present invention, as described above, the end edge portion of the pair of connection side wall portions on the opposite side of the pair of curved portions approaches the connection bottom wall portion as it extends toward the tip end side of the reduced connection end portion. The height of the pair of connecting side wall portions may be the same as or substantially the same as the height of the pair of connecting side wall portions, or the maximum height of the pair of connecting side wall portions may be set to be inclined in the direction. May be set to a height lower than the height of the pair of side wall portions.

In an example of the case where the maximum height of the pair of connecting side wall portions is the latter, the pair of side wall portions extend from the curved portion while inclining inward of the fixing groove, and the inclination angle with respect to the fixing groove is first. A second straight line portion that is an angle and a second angle that extends from the first straight line portion while tilting inward of the fixed groove, and the tilt angle with respect to the fixed groove is larger than the first angle. The straight portion, the third straight portion extending from the second straight portion to the inside and outside of the fixing groove with little or little inclination angle, and the inside of the fixing groove at the tip of the third straight portion. It is formed including a locking portion that is formed so as to project to, and is inserted in a state in which a maximum of three linear springs are stacked in the rising direction of the pair of side wall portions inside the fixing groove. When it is possible, the maximum height of the pair of connecting side wall portions is set within the height of the first straight line portion, in other words, the maximum height of the pair of connecting side wall portions. Is set to the same height as the boundary between the first straight line portion and the second straight line portion, or a height lower than this boundary.

According to this, since the maximum height of the pair of connecting side wall portions is sufficiently smaller than the height of the pair of side wall portions, the reduced connecting end portion provided on the one seat fixing rail is used as the other seat. The work of inserting into the inside of the end of the fixing rail and connecting these rails can be performed even if the above-mentioned linear spring or the like is arranged inside the fixing groove of the other seat fixing rail. The work can be carried out with less influence from the linear springs and the like.

Further, it is preferable that the tip of the reduced connecting end portion of the pair of connecting side wall portions in the length direction is chamfered in a shape that is curved outward and protrudes.

Also by this, when the reduced connecting end portion provided on the one seat fixing rail is inserted inside the end portion of the other seat fixing rail and the work of connecting these rails is performed, this Even if, for example, the above-mentioned linear spring or the like is arranged inside the fixing groove of the other seat fixing rail, the work can be performed with less influence of the linear spring or the like.

The seat fixing rail of the simplified structure according to the present invention described above can be applied to a simplified structure constructed by a member including a plurality of rod-shaped members and covered with a sheet at least a part of the surface, and this simplified structure is applicable. For example, it may be an agricultural house for cultivating vegetables, fruits, etc., a simple warehouse, or a simple garage.

According to the present invention, it is possible to easily perform the work of connecting the seat fixing rails in series.

FIG. 1 is a perspective view showing an agricultural house which is a simple structure in which a seat fixing rail according to an embodiment of the present invention is used, and is a diagram showing a state before the seat is covered. FIG. 2 is a partially enlarged view of FIG. 1 showing a portion where an entrance / exit of an agricultural house is provided. FIG. 3 is a partially enlarged view of FIG. 1 showing a ground portion of an agricultural house. FIG. 4 is a partially enlarged view of FIG. 1 showing the shoulder portion of the agricultural house. FIG. 5 is a side view showing the seat fixing rail. FIG. 6 is a perspective view showing a linear spring. FIG. 7 is a side view showing a state before the seat fixing rail is attached to the flat surface of the rod-shaped member with a fastener. FIG. 8 is a side view showing a state after the seat fixing rail is attached to the flat surface of the rod-shaped member with a fastener. FIG. 9 is a perspective view showing a holding member and a wedge member used for attaching the seat fixing rail to the rod-shaped member. FIG. 10 is a side view showing a seat fixing rail that is arranged in the portion shown in FIG. 2 and has one linear spring inserted into the fixing groove. FIG. 11 is a side view showing a seat fixing rail which is arranged in the portion shown in FIG. 3 and has two linear springs inserted into the fixing groove. FIG. 12 is a side view showing a seat fixing rail arranged in the portion shown in FIG. 4 and having three linear springs inserted into the fixing groove. FIG. 13 is an enlarged perspective view showing one end of the seat fixing rail provided with the reduced connecting end. 14A and 14B show a reduced connecting end portion provided at one end of the seat fixing rail, where FIG. 14A is a plan view, FIG. 14B is a front view, and FIG. 14C is a bottom view. .. FIG. 15 is a side view of the end portion of the seat fixing rail provided with the reduced connecting end portion. FIG. 16 is a cross-sectional view taken along the line S16-S16 of FIG. 14A. FIG. 17 is a cross-sectional view taken along the line S17-S17 of FIG. 14 (A). FIG. 18 shows a case where, of the two seat fixing rails connected in series, the reduced connecting end of one seat fixing rail is inserted inside the end of the other seat fixing rail and connected. (A) is a plan view, (B) is a front view, and (C) is a bottom view. FIG. 19 is a cross-sectional view taken along the line S19-S19 of FIG. 18B.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The simplified structure of the present embodiment is an agricultural house for producing agricultural products such as vegetables and fruits, and FIG. 1 shows the framework of the agricultural house, and the framework is the surface of the agricultural house. It is shown in the state before covering the sheet. The framework of the agricultural house is formed by combining a large number of rod-shaped members 1, and the rod-shaped member 1 is vertically erected in front of the doorway 2 of the agricultural house. And, an arch-shaped rod-shaped member 4 which is curved upward and has a plurality of pieces arranged side by side at intervals in the front-rear direction, and an angle of 90 degrees with these arch-shaped rod-shaped members 4. There are main building rod-shaped members 5 that are cross-arranged and extend horizontally in the front-rear direction, and a plurality of main building rod-shaped members 5 are provided at intervals in the length direction of the arch-shaped rod-shaped members 4. The vertical rod-shaped member 3 is a square pipe material, and the arch-shaped rod-shaped member 4 and the purlin rod-shaped member 5 are round pipe materials.

FIG. 2 is an enlarged view of the front portion A of the agricultural house in FIG. 1, and the flat surface 3A of the vertical rod-shaped member 3 arranged on the front portion A is provided with a tex screw 6 as a fastener. , A seat fixing rail 10 extending in the left-right direction is attached. Further, FIG. 3 is an enlarged view of the ground portion B of the agricultural house in FIG. 1, and FIG. 4 is an enlarged view of the shoulder portion C of the agricultural house in FIG. A seat fixing rail 10 extending in the front-rear direction is attached to the arch-shaped rod-shaped member 4 via the holding member 7 on the shoulder portion C.

The seat fixing rails 10 arranged on the front portion A, the ground portion B, and the shoulder portion C are obtained by cutting a rail material manufactured by roll forming a metal plate material to a predetermined size. As shown in FIG. 5, these seat fixing rails 10 have a part of a seat (see FIGS. 10 to 12) described later and a wavy or substantially wavy shape for fixing the part. Has a fixing groove 11 into which a linear spring (see FIG. 6) formed in is inserted, and the fixing groove 11 is provided on both sides of the bottom wall portion 12 and the bottom wall portion 12 in the width direction. It is formed by a pair of curved portions 13 formed in an outwardly curved shape and a pair of side wall portions 14 rising from these curved portions 13.

Further, each of the side wall portions 14 has a first straight line portion 15 extending from the curved portion 13 inwardly of the fixed groove 11, and a first straight line portion 15 extending inward of the fixed groove 11 from the curved portion 13. The two straight line portions 16, the third straight line portion 17 extending from the second straight line portion 16 to the inside and outside of the fixed groove 11 with little or little inclination angle, and the tip of the third straight line portion 17. The portion is composed of a locking portion 18 formed so as to project inward of the fixing groove 11. The inclination angle of the first straight line portion 15 with respect to the fixing groove 11 is, in other words, the inclination angle of the first straight line portion 15 with respect to the bottom wall portion 12 is the first angle R1 and the second straight line portion 16 is fixed. The inclination angle with respect to the groove 11 is, in other words, the inclination angle of the second straight line portion 16 with respect to the bottom wall portion 12 is the second angle R2, and the second angle R2 is larger than the first angle R1. There is.

Further, as shown in FIG. 5, the inward projecting dimension of the fixing groove 11 in the locking portion 18 is L1, and is in the rising direction orthogonal to the width direction of the bottom wall portion 12 in the locking portion 18. The height dimension of is L2, and the protruding dimension L1 is larger than the height dimension L2. Further, the outer surface 13A of each curved portion 13 protrudes toward the outside of the fixing groove 11 from the outer surface 12A of the bottom wall portion 12, and the amount of protrusion is H1. Further, on the inner surface 12B of the bottom wall portion 12, a recess portion 19 for aligning the tex screw 6 shown in FIG. 2 is formed at the center portion in the width direction of the bottom wall portion 12, and the recess portion 19 is formed. Has a length in the length direction of the seat fixing rail 10.

FIG. 6 shows a linear spring 30 for fixing the seat, which is partially inserted into the fixing groove 11 by being inserted into the fixing groove 11 of the seat fixing rail 10, to the seat fixing rail 10. Has been done. The linear spring 30 is formed by bending a metal wire having a circular cross section into a wavy or substantially wavy shape to make wavy or substantially wavy irregularities continuous in the length direction, and the direction of the irregularities. It can be elastically contracted, expanded and deformed in the width direction. Therefore, the linear spring 30 can be inserted into the fixing groove 11 of the seat fixing rail 10 by elastically contracting and deforming in the width direction, and after this insertion, the linear spring elastically expands and deforms. 30 expands inside the fixing groove 11 so as to come into close contact with the inner surfaces of the pair of side wall portions 14 (see FIGS. 10 to 12). The radius of curvature of the curved portion 13 of the seat fixing rail 10 is the same as or substantially the same as the radius of curvature of the cross section of the material of the linear spring 30.

7 and 8 show a work for attaching the seat fixing rail 10 to the vertical rod-shaped member 3 of FIG. 2, which is one of the rod-shaped members 1 for forming the framework of the agricultural house. .. Since the vertical rod-shaped member 3 is made of a square pipe material, the vertical rod-shaped member 3 has an outer surface of a flat surface 3A. In order to attach the seat fixing rail 10 to the vertical rod-shaped member 3, first, as shown in FIG. 7, each outer surface 13A of the pair of curved portions 13 of the seat fixing rail 10 is attached to the flat surface 3A. Push. After that, as shown in FIG. 8, the tex screw 6 is used, and the recessed portion 19 provided on the inner surface 12B of the bottom wall portion 12 of the seat fixing rail 10 is used as the positioning portion of the tex screw 6. Along with hitting the recessed portion 19, the tex screw 6 is rotated by an electric tool or the like, and the shaft portion of the tex screw 6 penetrating the bottom wall portion 12 is passed through the flat surface 3A of the vertical rod-shaped member 3 to be vertical. It is screwed into the rod-shaped member 3. As a result, the seat fixing rail 10 is attached to the flat surface 3A of the vertical rod-shaped member 3 by the tex screw 6 which is a fastener.

As described above, each outer surface 13A of the pair of curved portions 13 projects from the outer surface 12A of the bottom wall portion 12 toward the outside of the fixing groove 11 by the amount of protrusion H1. Therefore, as described above, the bottom wall portion When the shaft portion of the tex screw 6 penetrating the 12 is passed through the flat surface 3A of the vertical rod-shaped member 3 and screwed into the inside of the vertical rod-shaped member 3, the bottom wall portion 12 is driven by the pressing force from the tex screw 6. Is elastically curved and deformed toward the vertical rod-shaped member 3, and the outer surface 12A of the bottom wall portion 12 approaches or comes into contact with the flat surface 3A of the vertical rod-shaped member 3, so that springback from the elastically deformed bottom wall portion 12 The force prevents the tex screw 6 whose shaft portion is screwed inside the vertical rod-shaped member 3 from coming out of the vertical rod-shaped member 3.

FIG. 9 shows a holding member 7 used for attaching the seat fixing rail 10 to the arched rod-shaped member 4, as shown in FIGS. 3 and 4. The holding member 7 formed by punching and bending a metal plate material has a pair of side surface portions 7A and two upper and lower connecting portions 7B connecting the side surface portions 7A to each other. Two claw portions 7C are formed on the connecting portion 7B of the above with a vertical interval. The arch-shaped rod-shaped member 4 is sandwiched between the pair of side surface portions 7A, the seat fixing rail 10 is passed between the two upper and lower connecting portions 7B, and the wedge member 8 is inserted into the hole portions 7D formed in the pair of side surface portions 7A. By inserting and driving, as shown in FIGS. 3 and 4, the holding member 7 holds the arch-shaped rod-shaped member 4 and is attached to the arch-shaped rod-shaped member 4, and also has a bottom wall portion. The seat fixing rail 10 in which the outer surface 12A of the 12 is in contact with the arched rod-shaped member 4 has the holding member 7 by locking the two claws 7C of the holding member 7 to the outer surface of the pair of side wall portions 14. It will be attached to the arch-shaped rod-shaped member 4 via.

10 to 12 show a state when a part of the synthetic resin sheets 41 to 45 is fixed by the linear spring 30 inside the fixing groove 11 of the seat fixing rail 10. FIG. Is about the seat fixing rail 10 arranged in the front portion A of the agricultural house shown in FIG. 2, and FIG. 11 is arranged in the ground portion B of the agricultural house shown in FIG. 12 is about the seat fixing rail 10 arranged on the shoulder portion C of the agricultural house shown in FIG. 4.

As shown in FIG. 12, the number of linear springs 30 inserted into the fixing groove 11 of the seat fixing rail 10 according to the present embodiment is stacked in the rising direction of the pair of side wall portions 14. In the state, the maximum number is three, the first linear spring 30A, the second linear spring 30B, and the third linear spring 30C.

In FIG. 10, a part of the first seat 41 is covered inside the fixing groove 11 of the seat fixing rail 10 arranged in the front portion A of the agricultural house so as to cover the entire front surface of the agricultural house. A state is shown in which 41A is inserted, and a part of 41A is fixed to the seat fixing rail 10 by the first linear spring 30A inserted inside the fixing groove 11. The tension force of the first seat 41 or the like may act on the first linear spring 30A. Therefore, the first linear spring 30A may be affected by the de-output from the inside of the fixing groove 11. is there.

However, the first linear spring 30A is inserted into the curved portion 13 of the seat fixing rail 10 or the first straight portion 15 of the side wall portion 14, and the first linear spring 30A escapes at these locations. In the direction, the first straight line portion 15 extending from the curved portion 13 while tilting inward of the fixing groove 11 and tilting with respect to the fixing groove 11 and the first straight line portion 15 tilting inward of the fixing groove 11 However, since the second straight line portion 16 that extends and is inclined with respect to the fixing groove 11 is provided, the first linear spring 30A escapes from the inside of the fixing groove 11 due to the tension force of the first seat 41 or the like. This is blocked by the first straight line portion 15 and the second straight line portion 16.

In the seat fixing rail 10 according to the present embodiment, the side surface 18A on the fixing groove 11 side of the locking portion 18 provided at the tip of the pair of side wall portions 14 in the height direction is smooth toward the fixing groove 11. The tip surface 18B of the locking portion 18 opposite to the fixing groove 11 side is inclined in a direction away from the fixing groove 11 as it extends outward in the width direction of the fixing groove 11. Therefore, excessive tensile force, load, etc. do not act on the first sheet 41 which is fixed to the fixing groove 11 by the first linear spring 30A and guided by the surface of the locking portion 18. It is possible to prevent the first sheet 41 from being damaged.

Further, as described above, the seat fixing rail 10 according to the present embodiment is obtained by cutting the rail material manufactured by roll forming the metal plate material to a predetermined size, so that the locking portion 18 is made of metal. It is formed by curling the plate material.

Inside the fixing groove 11 of the seat fixing rail 10 arranged in the ground portion B of the agricultural house shown in FIG. 11, the lower part is embedded in the ground where the agricultural house is installed. The upper portion 42A of the second seat 42 is inserted, and the upper portion 42A is fixed to the seat fixing rail 10 by the first linear spring 30A inserted inside the fixing groove 11. Further, a lower portion 43A of the third seat 43 is also inserted into the fixing groove 11, and the lower portion 43A is a second wire inserted into the fixing groove 11 in a state of being stacked on the first linear spring 30A. It is fixed to the seat fixing rail 10 by the shape spring 30B. The second linear spring 30B may also be de-output from the inside of the fixing groove 11 due to a tension force acting on the third seat 43 or the like.

However, the second linear spring 30B is arranged at a position between the first straight line portion 15 and the second straight line portion 16 or at the second straight line portion 16 on the side wall portion 14 of the seat fixing rail 10, and these In the escape direction of the second linear spring 30B at the location, a second straight portion 16 extending from the first straight portion 15 while inclining inward of the fixing groove 11 and inclining with respect to the fixing groove 11 is provided. Therefore, the second linear spring 30B is prevented from escaping from the inside of the fixing groove 11 due to the tension force of the third seat 43 or the like by the second straight portion 16.

The upper portion 43B of the third seat 43 shown in FIG. 11 is inserted into the fixing groove 11 of the seat fixing rail 10 arranged in the shoulder portion C of the agricultural house shown in FIG. The upper portion 43B is fixed to the seat fixing rail 10 by the first linear spring 30A inserted inside the fixing groove 11. Further, an upper portion 44A of the fourth sheet 44 covering the third seat 43 is also inserted inside the fixing groove 11, and the upper portion 44A is placed inside the fixing groove 11 in a state of being stacked on the first linear spring 30A. It is fixed to the seat fixing rail 10 by the inserted second linear spring 30B. Further, inside the fixing groove 11, a lower portion 45A of the fifth sheet 45 extending downward from the ridge of the agricultural house and covering the surface of the agricultural house is also inserted, and the lower portion 45A is the first. It is fixed to the seat fixing rail 10 by the third linear spring 30C inserted into the fixing groove 11 in a state of being stacked on the two-linear spring 30B. The third linear spring 30C may also be de-output from the inside of the fixing groove 11 due to a tension force acting on the fifth seat 45 or the like.

The third linear spring 30C is arranged at a position of the second straight line portion 16 on the side wall portion 14 of the seat fixing rail 10, and in the escape direction of the third linear spring 30C at this location, inside and outside of the fixing groove 11. A third straight line portion 17 that extends with little or no inclination angle to the third straight line portion 17 is provided, and the tip portion of the third straight line portion 17 projects inward of the fixing groove 11. Since the locking portion 18 is formed, the locking portion 18 prevents the third linear spring 30C from escaping from the inside of the fixing groove 11 due to the tension force of the fifth seat 45 or the like.

As can be seen from the above description, even if a maximum of three linear springs 30A, 30B, and 30C are inserted inside the fixing groove 11 of the seat fixing rail 10 in the rising direction of the side wall portion 14, even if they are inserted. It is possible to prevent these linear springs 30A, 30B, and 30C from escaping from the inside of the fixing groove 11.

Further, in order to insert the three linear springs 30A, 30B, 30C into the fixing groove 11 of the seat fixing rail 10, these linear springs 30A, 30B, 30C are elastically contracted in the width direction. The seat fixing rail 10 must be deformed and passed between the two locking portions 18 provided at the tip ends of the pair of side wall portions 14 of the seat fixing rail 10. Then, as described with reference to FIG. 5, the third straight line portion 17 provided with the locking portion 18 does not have an inclination angle from the second straight line portion 16 to the inside and outside of the fixing groove 11 as described above. The inclination angle (the second angle R2) of the second straight portion 16 with respect to the fixing groove 11 extending from the first straight portion 15 while tilting inward of the fixing groove 11 is curved. Since the angle of inclination of the first straight line portion 15 with respect to the fixing groove 11 (the first angle R1) extending from the portion 13 while tilting inward of the fixing groove 11 is larger, the distance between the two locking portions 18 is large. Can be made large enough to allow the linear springs 30A, 30B, and 30C elastically contracted and deformed in the width direction to pass through.

That is, the third straight line portion 17 provided with the locking portion 18 may extend from the second straight line portion 16 while tilting inward of the fixing groove 11, or the second angle R2 may be the same as or the same as the first angle R1. If it is made smaller than this, the distance between the two locking portions 18 will be reduced. Therefore, the linear springs 30A and 30B, which are elastically contracted and deformed in the width direction between the locking portions 18, It becomes difficult for 30C to pass through, but the seat fixing rail 10 of the present embodiment can solve such a problem.

Further, in the seat fixing rail 10 according to the present embodiment, as described with reference to FIG. 5, the inward protrusion dimension L1 of the fixing groove 11 in the locking portion 18 is the width of the bottom wall portion 12 in the locking portion 18. It is larger than the height dimension L2 in the rising direction orthogonal to the direction. Therefore, as shown in FIG. 12, the third linear spring 30C is overlapped while ensuring the protruding dimension L1 of the locking portion 18 required for the third linear spring 30C to escape from the inside of the fixing groove 11. A sufficiently large space for passing the three sheets of the three sheets 43, the fourth sheet 44, and the fifth sheet 45 can be provided between the locking portion 18 and the third linear spring 30C.

Further, since the locking portion 18 projects only to the inside of the fixing groove 11 and does not project to the outside of the fixing groove 11, the seat fixing rail 10 is roll-formed by roll forming of a metal plate material as described above. The shape of the roll forming mold can be simplified, the roll forming can be facilitated, and the amount of metal plate used can be reduced.

The third sheet 43 of FIGS. 11 and 12 which is covered so as to cover the surface between the ground portion B and the shoulder portion C of the agricultural house is all or part of the third sheet 43 in order to ensure air permeability. Is a mesh sheet with a mesh. As described with reference to FIG. 12, the upper portion 44A of the fourth seat 44 overlaid on the third seat 43 is a fixing groove of the seat fixing rail 10 arranged on the shoulder portion C of the agricultural house. It is fixed to 11 with a second linear spring 30B, and the lower portion of the fourth seat 44 is connected to a winding device composed of a support column 50, an elevating means 51, and the like shown in FIG.

In this winding device, the elevating means 51 arranged on the support column 50 moves up and down along the support column 50 by the rotation operation of the handle 52, and the winding shaft 53 connected to the elevating means 51 is positive along with this elevating movement. It rotates in the opposite direction. Since the lower end portion of the fourth sheet 44 is connected to the take-up shaft 53, the take-up shaft 53 winds and unwinds the fourth sheet 44 by the forward and reverse rotation of the take-up shaft 53. Thereby, depending on the weather and the like, a part or all of the third sheet 43 which is a mesh sheet can be exposed, and the fourth sheet 44 can cover all or a part of the third sheet 43.

FIG. 13 shows a perspective view of one end of the seat fixing rail 10 according to the present embodiment in the length direction, and this end is the front-rear direction of the agricultural house shown in FIG. Because of its large size, it is a connecting end 60 for connecting another seat fixing rail 10'(see FIGS. 18 and 19) in series to the seat fixing rail 10. The connecting end portion 60 provided only at one end portion in the length direction of the seat fixing rail 10 is formed in the seat fixing rail 10 because the above-mentioned fixing groove 11 is provided in the seat fixing rail 10. Of the bottom wall portion 12, the pair of curved portions 13, and the pair of side wall portions 14, the connecting bottom wall portion 62 connected to the bottom wall portion 12 and the pair of connecting curved portions connected to the pair of curved portions 13. 63 (see also FIG. 15), a pair of connecting side wall portions 64 connected to the pair of side wall portions 14, these connecting bottom wall portions 62, a pair of connecting curved portions 63, and a pair of connecting side wall portions 64. The inside surrounded by is a connection fixing groove 61 connected to the fixing groove 11.

14 (A), (B), and (C) show a plan view, a front view, and a bottom view of one end portion of the seat fixing rail 10 including the connecting end portion 60 in the length direction. , FIG. 15 shows a side view of the seat fixing rail 10 on the connecting end 60 side, and FIG. 16 shows a sectional view taken along line S16-S16 of FIG. 14A. As can be seen from FIGS. 13 to 16, the pair of connecting curved portions 63 is formed in a shape reduced inward of the fixing groove 11 with respect to the pair of curved portions 13, and the pair of connecting side wall portions 64. Is formed in a shape reduced inward of the fixing groove 11 with respect to the pair of side wall portions 14. However, the connecting bottom wall portion 62 is formed in a state where there is no step in the inward / outward direction of the fixing groove 11 with respect to the bottom wall portion 12, that is, in a shape not reduced to the inside of the fixing groove 11 with respect to the bottom wall portion 12. ing.

Therefore, the connection fixing groove 61 is connected to the fixing groove 11 in the thickness direction of the bottom wall portion 12 without a step, and the connection fixing groove 61 is connected in the thickness direction of the bottom wall portion 12. In the direction orthogonal to, in other words, the fixing groove 11 is formed in a reduced shape in the width direction of the seat fixing rail 10. The reduced dimension is the same as or slightly larger than the thickness of the metal plate material which is the material of the seat fixing rail 10. Further, between the pair of curved portions 13 and the pair of connecting curved portions 63, there is a pair of intermediate portions 73 shown in FIG. 14B and the like, and a pair of side wall portions 14 and a pair of connecting side wall portions. There is also a pair of intermediate portions 74 between 64 and 64. Further, as shown in FIG. 15, each of the pair of connecting side wall portions 64 forms a third angle R3 with respect to the connecting fixing groove 61, in other words, with respect to the connecting bottom wall portion 62. It is inclined inward of the connection fixing groove 61, and the size of the third angle R3 is the inclination angle of the first straight line portion 15 with respect to the fixing groove 11 of the side wall portion 14 shown in FIG. It has the same or substantially the same size as one angle R1.

As described above, the connecting end 60 provided at one end of the seat fixing rail 10 in the length direction for connecting the other seat fixing rail 10'in series with the seat fixing rail 10. In the present embodiment, the pair of connecting curved portions 63 is formed in a shape reduced inward of the fixing groove 11 with respect to the pair of curved portions 13, and the pair of connecting side wall portions 64 is also formed as a pair of side walls. Since the portion 14 is formed in a shape that is reduced inward of the fixing groove 11, the connecting end portion 60 is a reduced connecting end portion.

Further, in the reduced connecting end portion 60 according to the present embodiment, the end edge portion 64A on the side opposite to the connecting curved portion 63 in each of the pair of connecting side wall portions 64 is shown in FIGS. 13 and 14 (B). As shown above, the end edge portions 64A are inclined toward the connection bottom wall portion 62 as they extend toward the tip 60A side of the reduced connection end portion, and therefore, these end edge portions 64A are the upper ends of the pair of side wall portions 14. Unlike the above-mentioned locking portion 18 provided in the portion, it is not parallel to the bottom wall portion 12 and the connecting bottom wall portion 62. Further, the maximum height of these edge portions 64A is, that is, the height of the edge portions 64A extending in the length direction of the reduced connecting end portion 60 at the position closest to the side wall portion 14. As shown in FIG. 14B, it is within the height of the first straight line portion 15 of the side wall portions 14, and therefore, the maximum height of each end edge portion 64A is the first. The height is the same as or lower than the boundary between the straight line portion 15 and the second straight line portion 16.

In the present embodiment, as shown in FIG. 13, the connecting bottom wall portion 62 forming a part of the reduced connecting end portion 60 projects from the connecting bottom wall portion 62 in the thickness direction. The rib portion 75 having an amount is provided, and the rib portion 75 having a length in the length direction of the reduced connecting end portion 60 is a cross-sectional view taken along the line S17-S17 of FIG. 14 (A). As can be seen from FIG. 17, by pressing the metal plate which is the material of the connection bottom wall portion 62 toward the inside of the connection fixing groove 61, the metal plate is formed by bending, so that the rib portion 75 is formed. It projects toward the inside of the fixing groove 11, that is, toward the inside of the connecting fixing groove 61.

Further, as shown in FIG. 14 (A), the position of the end portion 75A on the tip 60A side of the reduced connection end portion 60 in the rib portion 75 is from the tip 62A of the connection bottom wall portion 62, that is, contracted. The position is recessed from the tip 60A of the shape connecting end 60 to the bottom wall 12 side. Further, the position of the end portion 75B of the rib portion 75 on the side opposite to the tip 60A side of the reduced connection end portion 60 reaches the bottom wall portion 12 beyond the boundary between the connection bottom wall portion 62 and the bottom wall portion 12. Therefore, the length dimension of the rib portion 75 in the length direction of the reduced connecting end portion 60 is a dimension exceeding the boundary between the connecting bottom wall portion 62 and the bottom wall portion 12.

As shown in FIG. 14A, the recessed portion 19 formed on the inner surface 12B of the bottom wall portion 12 shown in FIG. 5 is on the tip 60A side of the reduced connecting end portion 60 of the rib portion 75. Reached to the position of the opposite end 75B, and between the end 75A on the tip 60A side of the reduced connecting end 60 of the rib portion 75 and the tip 62A of the connecting bottom wall 62. A recessed portion 76 extending in the length direction of the reduced connecting end portion 60 is formed in the central portion in the width direction of the connecting bottom wall portion 62. Therefore, in the seat fixing rail 10 of the present embodiment, the recessed portions 19, 76 cover the entire length of the seat fixing rail 10 including the reduced connecting end portion 60, except for the portion where the rib portion 75 is provided. Will be formed.

Further, in the seat fixing rail 10 according to the present embodiment, as shown in FIGS. 14A and 14B, in the length direction of the reduced connecting end portion 60 in each of the pair of connecting side wall portions 64. The tip is a curved chamfered portion 77 that is curved outward and chamfered into a protruding shape.

The seat fixing rail 10 of the present embodiment described above is a narrow metal plate material having the same length as the rail 10, and the width dimension of the portion to be the reduced connecting end portion 60 is larger than that of the other portions. The bottom wall portion 12 and the bottom wall portion 12 are formed by roll forming after cutting so that the width dimension is gradually reduced toward the tip 60A side of the reduced connecting end portion 60. A pair of curved portions 13, a pair of side wall portions 14, and a recessed portion 19 are formed, and then the portion to be the reduced connecting end portion 60 is swaged by a mold arranged inside and outside the portion to be the reduced connecting end portion 60. Manufactured by performing reduction processing such as processing. Further, at the time of this reduction processing, the rib portion 75 is also formed, whereby a part of the recess portion 19 formed over the entire length of the narrow metal plate material by the roll forming molding is deformed into the rib portion 75. The recessed portion 19 formed on the tip 62A side of the connecting bottom wall portion 62 with respect to the rib portion 75 becomes the recessed portion 76.

In FIG. 18, the reduced connecting end portion 60 provided at one end of the seat fixing rail 10 of the present embodiment in the length direction has the same shape and dimensions as the seat fixing rail 10. The figure shows a case where two seat fixing rails 10 and 10'are connected in series by inserting them inside the other end portion in the length direction of another manufactured seat fixing rail 10'. 18 (A), (B), and (C) are a plan view, a front view, and a bottom view. When inserting the reduced connecting end 60 of the seat fixing rail 10 into the inside of the end of the seat fixing rail 10', as described above, a part of the reduced connecting end 60 of the seat fixing rail 10. The end edge portion 64A on the side opposite to the connection curved portion 63 in each of the pair of connection side wall portions 64 forming the above approaches the connection bottom wall portion 62 as it extends toward the tip 60A side of the reduced connection end portion 60. Since it is inclined in the direction, the work of inserting the reduced connecting end portion 60 inside the end portion of the seat fixing rail 10'can be easily performed by the guiding action of the inclined end edge portion 64A.

Further, since the rib portion 75 having the protrusion amount in the thickness direction of the connection bottom wall portion 62 is formed in the connection bottom wall portion 62 with the length in the length direction of the reduced connection end portion 60. As described above, the direction in which the end edge portion 64A on the side opposite to the connection curved portion 63 in each of the pair of connection side wall portions 64 approaches the connection bottom wall portion 62 as it extends toward the tip 60A side of the reduced connection end portion 60. Even if it is inclined to, the strength of the connection bottom wall portion 62 in the thickness direction of the reduced connection end portion 60 can be improved by the rib portion 75.

Further, since the rib portion 75 projects in the direction of the inside of the fixing groove 11, the reduced connecting end portion 60 of the seat fixing rail 10 is inserted inside the end portion of the seat fixing rail 10'. The work to be performed can be easily carried out without being affected by the rib portion 75.

Further, since the length of the rib portion 75 exceeds the boundary between the connecting bottom wall portion 62 and the bottom wall portion 12, the connecting bottom wall portion of the above-mentioned reduced connecting end portion 60 by the rib portion 75 is formed. The strength in the thickness direction of 62 can be further effectively improved.

Further, since the position of the end portion 75A on the tip end 60A side of the reduced connecting end portion 60 in the rib portion 75 is retracted from the tip end 62A of the connection bottom wall portion 62 to the bottom wall portion side, the connection bottom wall portion 62 The tip 62A is not provided with a rib portion 75 having an amount of protrusion in the thickness direction of the connection bottom wall portion 62. Therefore, the reduced connecting end portion 60 of the seat fixing rail 10 is connected to the seat fixing rail 10. The work of connecting these rails 10 and 10 by inserting them inside the end of the'will be easier.

Further, between the end portion 75A of the rib portion 75 on the tip 60A side of the reduced connecting end portion 60 and the tip 62A of the connecting bottom wall portion 62, a recess portion extending in the length direction of the reduced connecting end portion 60 Since 76 is formed, the reduced connecting end portion 60 is attached together with the seat fixing rail 10'connected to the seat fixing rail 10 by the reduced connecting end portion 60 with a fastener such as a tex screw. At that time, the fastener can be positioned by the recessed portion 76 provided in the connection bottom wall portion 62.

Further, as shown in FIG. 19 which is a cross-sectional view taken along the line S19-S19 of FIG. 18B, the bottom wall portion 12'of the seat fixing rail 10'is connected to the connecting bottom wall of the seat fixing rail 10. Since the recessed portion 19'is formed at a position corresponding to the width direction of the recessed portion 76 provided in the portion 62 and the seat fixing rails 10 and 10', a fastener such as a tex screw is connected to these. The bottom wall portion 62 and the bottom wall portion 12'can be easily penetrated to reach the rod-shaped member of the simple structure.

Further, in the seat fixing rail 10 according to the present embodiment, the connecting bottom wall portion 62 forming a part of the reduced connecting end portion 60 has no step in the inward / outward direction of the fixing groove 11 with respect to the bottom wall portion 12. Since it is connected by, the shape of the mold for forming the reduced connecting end portion 60 by reducing it by shrinking such as swage processing can be simplified accordingly, and the shrinking can be performed. The reduced connecting end portion 60 formed by the shaping process can be finished in a more accurate shape.

Further, in the present embodiment, as described above, the end edge portion 64A on the side opposite to the connection curved portion 63 in each of the pair of connection side wall portions 64 is extended toward the tip 60A side of the reduced connection end portion 60. By inclining toward the connection bottom wall portion 62, the maximum height of the pair of connection side wall portions 64 is set to be lower than the height of the pair of side wall portions 14, and this maximum height is set to the pair of side walls. Since it is within the height of the first straight line portion 15 in the portion 14, the reduced connecting end portion 60 of the seat fixing rail 10 is inserted inside the end portion of the seat fixing rail 10', and these rails 10 and 10 are inserted. Even if the above-mentioned linear spring 30 or the like is arranged inside the seat fixing rail 10'for the work of connecting the', the influence of the linear spring 30 or the like is reduced, and the seat fixing rail is reduced. The pair of connecting side wall portions 64 of 10 can be inserted between the pair of side wall portions 14'of the seat fixing rail 10'.

Further, since the tip of the reduced connecting end portion 60 in the pair of connecting side wall portions 64 in the length direction is a curved chamfered portion 77 that is curved outward and chamfered in a protruding shape, this also causes a sheet. The work of inserting the reduced connecting end 60 of the fixing rail 10 inside the end of the seat fixing rail 10'and connecting these rails 10 and 10'is performed inside the seat fixing rail 10', for example. Even if the above-mentioned linear spring 30 or the like is arranged, the influence of the linear spring 30 or the like can be reduced.

In the seat fixing rail 10', the reduced connecting end 60 of the seat fixing rail 10 is inserted at the end opposite to the end inserted inward in the length direction. Since a reduced connecting end having the same shape and dimensions is formed, another seat fixing rail can be connected in series to the rail 10'by this reduced connecting end, and this is repeated. Can deal with agricultural houses with long dimensions. Further, by cutting the last seat fixing rail according to the total length of the agricultural house, the length of the last seat fixing rail conforms to the total length of the agricultural house.

The present invention can be used to fix a sheet to be placed on the surface of a simple structure such as an agricultural house, a simple warehouse, or a simple garage.

1 Rod-shaped member 3 Vertical rod-shaped member that is a rod-shaped member 4 Arch-shaped rod-shaped member that is a rod-shaped member 10,10'Seat fixing rail 11 Fixing groove 12,12' Bottom wall part 13 Curved part 14, 14'Wall part 15 First Straight part 16 2nd straight part 17 3rd straight part 18 Locking part 19, 19', 76 Depressed part 30 Linear spring 41-45 Seat 60 Compact connection end 60A Tip 61 Connection fixing groove 62 Connection bottom wall part 62A Tip 63 Connection curved part 64 Connection side wall part 64A Edge edge part 75 Rib part 75A Tip side end of reduced connection end part in rib part 77 Curved chamfered part R1 1st angle R2 2nd angle

Claims (9)

A rail attached to the rod-shaped member of a simple structure constructed by a member including a plurality of rod-shaped members and covered with a sheet on at least a part of the surface.
It has a fixing groove into which a part of the sheet and a wavy or substantially wavy linear spring for fixing the part are inserted, and the fixing groove is a bottom wall portion and the bottom wall portion. A pair of curved portions formed in an outwardly curved shape on both sides in the width direction of the above, and a pair of side wall portions rising from these curved portions are included.
At the end in the length direction, a connection bottom wall portion connected to the bottom wall portion, a pair of connection curved portions connected to the pair of curved portions, and a pair of connections connected to the pair of side wall portions. A connecting end portion formed including a side wall portion is provided, and the connecting end portion is formed by at least the pair of connecting curved portions of the connecting bottom wall portion, the pair of connecting curved portions, and the pair of connecting side wall portions. The portion and the pair of connecting side wall portions are simplified connecting end portions formed in a shape reduced inward of the fixing groove with respect to the pair of curved portions and the pair of side wall portions. In the seat fixing rail of the mold structure
The end edge portion of the pair of connection side wall portions on the opposite side of the pair of connection curved portions is inclined in a direction approaching the connection bottom wall portion as it extends toward the tip end side of the reduced connection end portion. A rail for fixing seats in a simple structure that features. In the seat fixing rail of the simplified structure according to claim 1, the connecting bottom wall portion has a rib portion having a protrusion amount in the thickness direction of the connecting bottom wall portion, and the length of the reduced connecting end portion is long. A rail for fixing a seat in a simple structure, which is characterized by having a length in the longitudinal direction. The seat fixing rail of the simple structure according to claim 2, wherein the rib portion protrudes in the direction of the inside of the fixing groove. In the seat fixing rail of the simplified structure according to claim 2 or 3, the rib portion has a length exceeding the boundary between the connecting bottom wall portion and the bottom wall portion. Rails for fixing seats in mold structures. In the seat fixing rail of the simplified structure according to any one of claims 2 to 4, the position of the end end side of the reduced connecting end portion in the rib portion is the position from the tip end of the connecting bottom wall portion. A rail for fixing seats in a simple structure, which is characterized by being retracted toward the bottom wall. In the seat fixing rail of the simplified structure according to claim 5, the shrinkage is formed between the end portion of the rib portion on the tip end side of the reduced connection end portion and the tip end of the connection bottom wall portion. A rail for fixing a seat in a simple structure, characterized in that a recess extending in the length direction of the shape connecting end is formed. In the seat fixing rail of the simplified structure according to any one of claims 1 to 6, the connecting bottom wall portion is connected to the bottom wall portion without a step in the inward and outward directions of the fixing groove. A rail for fixing seats in a simple structure that features it. In the seat fixing rail of the simplified structure according to any one of claims 1 to 7, the pair of side wall portions extend from the curved portion while inclining inward of the fixing groove, and the inclination angle with respect to the fixing groove. A first straight line portion having a first angle, and a second angle extending from the first straight line portion while tilting inward of the fixing groove and having an inclination angle with respect to the fixing groove larger than the first angle. A second straight line portion, a third straight line portion extending from the second straight line portion to the inside and outside of the fixing groove with little or no inclination angle, and a tip of the third straight line portion. The portion is formed to include a locking portion formed so as to project inward of the fixing groove, and a maximum of three linear springs are formed inside the fixing groove in the rising direction of the pair of side wall portions. It can be inserted in a stacked state,
A rail for fixing a seat in a simple structure, wherein the maximum height of the pair of connecting side wall portions is within the height of the first straight line portion. In the seat fixing rail of the simplified structure according to any one of claims 1 to 8, the tip of the reduced connecting end portion in the pair of connecting side wall portions in the length direction is curved outward and protrudes. A rail for fixing seats in a simple structure, which is characterized by being chamfered.

Images