JP3340414B2 - Roof sheeting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for extending a roof sheet so that the sheet can be opened.

[0002]

2. Description of the Related Art The roofs of agricultural greenhouses and camp houses are stretched so that sheets can be opened. For example, in an agricultural greenhouse, the roof sheet is opened when the temperature is hot, and the roof sheet is closed when the temperature becomes cold to warm the room. To easily open and close the roof sheet,
A device for winding both sides of a sheet with a winding rod has been developed (Japanese Patent Publication No. 4-34662).

FIG. 1 shows an apparatus described in this publication.
This apparatus raises the winding rod 2 while winding the sheet 3 around the winding rod 2, and opens the roof. When closing the roof, the winding rod 2 is lowered along the roof frame 15. The lowered winding rod 2 is fixed to the roof frame 15 by the sheet stretching device 1 so as not to rotate.

FIG. 2 is an enlarged perspective view of the sheet stretching apparatus 1 shown in FIG. Sheet tensioning device 1 shown in this figure
, A pocket plate 16 supporting the winding rod 2 is horizontally fixed to the roof frame 15. The pocket plate 16 has an opening at the bottom, and has a shape capable of holding the winding rod 2 from below. Further, a pulley 17 is fixed to the winding rod 2, and a rope 1 is attached to the pulley 17.
8 is wound, and the rope 18 is pulled by a spring 19. The spring 19 is pulling in a direction in which the winding rod 2 winds the sheet 3 into the pocket plate 16.

[0005]

In the sheet stretching apparatus 1 shown in FIGS. 1 and 2, a winding rod 2 around which a sheet 3 is wound is housed in a pocket plate 16, and the pulley is fixed to the winding rod 2. 17 is pulled by a spring 19 to take up the winding rod 2 into the pocket plate 1.
6 can be held in the fixed position. However, in the sheet stretching apparatus having this structure, when the sheet is pulled by a strong wind or the like, it may be difficult to hold the winding rod at a fixed position of the pocket plate. This is because the rope is pulled by the spring and the winding rod is urged in the winding direction via the pulley. In this structure, when the sheet is instantaneously pulled by a strong wind or the like, the sheet extends and the winding rod comes out of the pocket plate and cannot be held in a fixed position, which is very dangerous. When the sheet is extended, the take-up rod is suspended down to the lower end, then rotated in the reverse direction and stored in the pocket.If the sheet is to be extended when sudden wind or rain blows, the sheet flutters due to the wind. There is a drawback that it is very difficult for the take-up rod to bend and rotate in the opposite direction to be stored in the pocket.

[0006] The present invention has been developed with a view to solving such a drawback. An important object of the present invention is to provide a roof sheeting apparatus which can securely hold a winding rod and can be mass-produced simply and inexpensively.

[0007]

The sheet stretching apparatus of the present invention holds a winding rod 2 connecting a sheet 3 stretched on a roof in a fixed position without rotating. Further, the seating apparatus according to claim 1 of the present invention has the following unique configuration. (A) The sheet tensioning device includes a rotating shaft 5 mounted so as to be rotatable on a building in parallel with the winding rod 2 via a connecting member 4, and a stopper arm fixed to the rotating shaft 5 at a predetermined interval. 6 is provided. (B) The connecting member 4 includes a fixing portion 4A fixed to the building,
It has a connecting cylinder 4B that holds the rotating shaft 5 so as to be rotatable, and a connecting arm 4C that connects the connecting cylinder 4B and the fixed part 4A. (C) The connecting cylinder 4B is provided at the tip of the connecting arm 4C. (D) The connecting arm portion 4C has a guide groove 10 having an upper opening into which the winding rod 2 can be inserted. This guide groove 10
The upper opening of the passage gap 1 through which the winding rod 2 can pass
It is set to 1. This is for taking the winding rod 2 in and out of the guide groove 10. (E) The stopper arm 6 extends downward from the rotation shaft 5, holds the upper surface of the winding rod 2 guided by the guide groove 10, and moves the winding rod 2 upward from the guide groove 10. Has a stopper surface 6A at the tip. (F) The stopper arm 6 allows the winding rod 2 to be moved into and out of the guide groove 10 when the rotating shaft 5 is rotated.
And the stop position for stopping the winding rod 2 at the fixed position of the guide groove 10 while holding the upper surface of the winding rod 2.

Further, the roof sheet stretching apparatus according to the second aspect of the present invention has the following configuration. (A) The sheet stretching apparatus includes a connecting member 4 and the connecting member 4.
The stopper arm 6 is connected so as to be rotatable, an expanding rod 21 that is moved in the axial direction to rotate the stopper arm 6, and a wire 20 that moves the expanding rod 21 in the axial direction. (B) The connecting member 4 includes a fixing portion 4A fixed to the building,
It has an end connecting portion 4D for holding the stopper arm 6 so as to be rotatable, and a connecting arm portion 4C for connecting the end connecting portion 4D and the fixed portion 4A. (C) The connecting arm part 4C has an end connecting part 4D
Is provided. (D) The connecting arm portion 4C has a guide groove 10 having an upper opening into which the winding rod 2 can be inserted. The upper opening of the guide groove 10 has an insertion gap 22 through which the winding rod 2 can pass.
And (E) The stopper arm 6 is connected to the end connecting portion 4 of the connecting tool 4.
D has a rotary connecting portion 6B at the upper end, and has a stopper surface 6A at the lower end extending downward from the rotary connecting portion 6B and holding the upper surface of the winding rod 2 guided by the guide groove 10. And has a total length that prevents the winding rod 2 from going out of the guide groove 10 to the outside. (F) The stopper arm 6 has a curved concave portion 6C between the rotation connecting portion 6B and the stopper surface 6A.
An insertion gap 22 is provided inside C and between the connecting arm 4C and the connecting arm 4C to allow the expanding rod 21 to pass therethrough. (G) The stopper arm 6 is rotated by pulling the wire 20 to put the expanding rod 21 in and out of the insertion gap 22 to rotate the stopper arm 6 outside the passage of the winding rod 2 that is inserted into and removed from the guide groove 10, and to wind up. The winding rod 2 is moved to a stop position where the winding rod 2 is stopped at a fixed position of the guide groove 10 while holding the upper surface of the rod 2.

Further, in the sheet stretching apparatus of the present invention, preferably, the connecting arm portion 4C is provided with a convex portion 12 for stopping the winding rod 2, and the convex portion 12 and the stopper surface 6A of the stopper arm 6 form: The winding rod 2 is stopped at a fixed position in the guide groove 10. With this structure, the winding rod 2 can be stopped in the guide groove 10 more reliably.

A notch 13 or an opening 23 through which the stopper arm 6 passes is formed at the distal end of the connecting arm 4C.
Can be opened. The connecting tool 4 through which the stopper arm 6 passes can reliably stop the winding rod 2 at the fixed position by the stopper arm 6.

The connecting arm portion 4C preferably has a metal plate obtained by bending the entire shape of a metal plate, and has a connecting cylinder 4B or an end connecting portion 4D at one end and a fixed portion 4A at the other end.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a sheet stretching apparatus for embodying the technical idea of the present invention, and the present invention does not specify the sheet stretching apparatus as follows.

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”. However, the members described in the claims are not limited to the members of the embodiments.

The roof sheet stretching apparatus shown in FIGS. 3 to 8 includes a connecting member 4, a rotating shaft 5, and a stopper arm 6. The connecting tool 4 attaches the rotating shaft 5 to the building so as to be able to rotate in parallel with the winding rod 2. The stopper arm 6 is fixed to the rotating shaft 5 at a predetermined interval,
The winding rod 2 is stopped at a fixed position.

In a building, a sheet stretching apparatus 1 shown in the figure is provided.
A plurality of sets are fixed at regular intervals, and the long winding rod 2 is stopped at a fixed position in the building. If the winding rod is short, or in other words, if the total length of the building is short, sheet winding devices can be provided at both ends of the winding rod to stop the winding rod at a fixed position. In an elongated building such as an agricultural house, for example, a sheet stretching device is provided at intervals of several meters to support a long winding rod in a fixed position.

The connecting member 4 shown in the figure is manufactured by press-forming a metal plate. The connecting tool 4 in this figure is composed of a fixed portion 4A fixed to a building, a connecting tube 4B for holding the rotating shaft 5 so as to be rotatable, and a connecting arm portion 4C for connecting the connecting tube 4B and the fixed portion 4A. Has become. The fixing portion 4A is provided with a through hole 7. The fixing portion 4A is fixed to the building by holding the frame 9 of the building with the holding metal member 8. The clamping metal member 8 shown in the figure has a middle portion bent in a V-groove shape to guide the building frame 9 to the V-groove 8A. In the clamp 8 of this structure, both sides of the V-groove 8A are connected to the fixing portion 4A with set screws, and the frame 9 is clamped between the fixing portion 4A and the clamp 8 to connect the coupling 4 to the building. Fix to frame 9.

The connecting arm 4C has a connecting cylinder 4B connected to one upper end and a fixed part 4A connected to the other upper end. The connecting cylinder 4B is inserted and supported so that the rotating shaft 5 can rotate. Therefore, the inner shape of the connecting cylinder 4B is slightly larger than the outer shape of the rotating shaft 5. The connecting tool 4 in the figure is
A guide groove 10 having an upper opening through which the winding rod 2 can be inserted is provided by the connecting arm portion 4C so that the entire shape of the metal plate is bent in a U-shape. The guide groove 10 is a space for taking in and taking out the winding rod 2. Therefore, the upper opening of the guide groove 10 is a passage gap 11 through which the winding rod 2 can pass.

Further, the connecting tool 4 shown in the figure has a connecting arm portion 4C provided with a convex portion 12 for stopping the winding rod 2. The protrusion 12 is a protrusion extending in a direction parallel to the winding rod 2. The connecting tool 4 in the figure has a convex portion 12 provided between the bottom of the guide groove 10 and the fixing portion 4A. In other words, the distance between the inner surface of the connecting arm 4C and the protrusion 12 is wider than the outer diameter of the winding rod 2 so that the connection arm 4C can move the winding rod 2 below the protrusion 12. Thus, the portion facing the convex portion 12 is shaped to protrude forward. The connecting tool 4 having this structure has a feature that the winding rod 2 can be reliably stopped in the guide groove 10.

The stopper arm 6 holds the winding rod 2 positioned below the projection 12 so as not to come out of the guide groove 10. The stopper arm 6 pushes the winding rod 2 downward from above to hold the winding rod 2 inside the guide groove 10. Therefore, the stopper arm 6 extends downward from the rotation shaft 5 and has a stopper surface 6A at the lower end. The stopper surface 6A comes into contact with the upper surface of the winding rod 2 guided by the guide groove 10, and the winding rod 2
Prevents going out from 0. Stopper arm 6 shown
The stopper surface 6A so that the winding rod 2 can be guided.
Are formed in a groove shape. The stopper surface 6A of this shape is
The winding rod 2 can be guided in the groove and held so as not to shift. In particular, as shown in the drawing, the stopper surface 6A having a V-groove shape can be manufactured at a low cost by simple processing, and can stably hold the cylindrical winding rod 2 so as not to shift.

The stopper arm 6 is shaped so that the winding rod 2 can be held on the stopper surface 6A by pushing the winding rod 2 from above with the stopper surface 6A. The winding rod 2 guided by the guide groove 10 and in contact with the stopper surface 6A exerts a force to be lifted upward by the sheet 3 being wound. The stopper arm 6 holds the guide rod 10 at a fixed position by preventing the winding rod 2 from rising. This is because the stopper surface 6A is in contact with the upper surface of the winding rod 2.

The sheet stretching apparatus 1 shown in FIG.
When the stopper arm 6 is pushed up to move upward, the stopper arm 6 is rotated counterclockwise. However, the stopper arm 6 is not rotated counterclockwise because the lower end contacts the protrusion 12. For this reason, the stopper arm 6 holds the winding rod 2 at a fixed position so as not to rise. The stopper arm 6 shown in the drawing has the stopper surface 6A positioned substantially on the same plane as the lower surface of the convex portion 12, and the winding rod 2 is provided on both the convex portion 12 and the stopper surface 6A.
Is held at a fixed position in the guide groove 10. This structure has a feature that the winding rod 2 can be reliably held at a fixed position. This is because the raising of the winding rod 2 can be prevented by both the protrusion 12 and the stopper arm 6.

However, in the sheet stretching apparatus of the present invention, it is not always necessary to provide a convex portion on the connecting member. In the sheet tensioning device having no convex portion, the stopper arm is brought into contact with the inner surface of the connecting arm portion to hold the winding rod in a fixed position. When the upper surface of the winding rod is pressed by the stopper surface of the stopper arm and the stopper arm is pushed up by the winding rod, the stopper arm abuts on the inner surface of the guide groove, and the stopper arm Rotation is stopped,
The take-up rod is prevented from rising by the stopper arm that does not rotate.

If the stopper arm can be rotated 180 degrees while holding the winding rod, the winding rod cannot be held inside the guide groove. Therefore, the stopper arm has an overall length that prevents the winding rod held by the stopper surface from going out of the guide groove to the outside. In other words, the stopper arm is designed to have an entire length that does not rotate from a position where the winding rod comes into contact with the inner surface of the guide groove. As shown in the figure, in the sheet stretching apparatus 1 in which the convex portion 12 is provided on the connecting member 4, the length of the stopper arm 6 is determined so that the stopper surface 6A is located at the same position as the convex portion 12.

The above-described sheet stretching apparatus is shown in FIG.
The rotation of the stopper arm 6 is stopped by pressing the stopper arm 6 against the right side of the connecting arm portion 4C, that is, the building frame side. However, in contrast to this structure, the sheet stretching device of the present invention holds the winding rod at a fixed position of the guide groove by pressing the lower end of the stopper arm against the inner surface opposite to the building frame so as not to rotate. You can also.

Further, in the sheet stretching apparatus shown in the figure, a notch 13 through which the stopper arm 6 passes is opened at the distal end of the connecting arm 4C. The connecting arm portion 4C having this structure allows the stopper arm 6 to pass through the notch portion 13,
It can move in and out of the guide groove 10. For this reason, the rotating shaft 5
Can be held by the connecting cylinder 4B on both sides of the stopper arm 6. However, in the sheet stretching apparatus of the present invention, the take-up rod can be held in the guide groove by fixing the stopper arm to the outside of the connecting arm portion. This sheet stretching device
By rotating the rotating shaft, the stopper arm is moved out of the path of the winding rod that is inserted into and removed from the guide groove, i.e., a position where the stopper rod does not hinder the insertion and removal of the winding rod into and out of the guide groove, and a fixed position of the winding rod. Move to the stop position to stop.

The rotating shaft 5 has an end lever 14 fixed to rotate the rotating shaft 5 to move the stopper arm 6. The end lever 14 stops the stopper arm 6 at the stop position of the winding rod 2 by its own weight. As shown in FIG. 8, the end lever 14 is located at a position where the stopper arm 6 stops the winding rod 2, and extends substantially horizontally. The end lever 14 in FIG. 8 rotates the rotary shaft 5 counterclockwise in an attempt to drop by its own weight. This rotation torque presses the lower end of the stopper arm 6 against the projection 12.

The sheet stretching apparatus 1 having the above structure holds the winding rod 2 at a fixed position as shown in FIGS. [FIG. 5] This state shows a state in which the winding rod 2 is not inserted into the guide groove 10. At this time, the stopper arm 6
Is the rotational torque of the end lever 14 due to its own weight, and is in contact with the projection 12 of the connecting arm 4C.

[FIG. 6] When the winding rod 2 is inserted into the guide groove 10, the stopper arm 6 is pushed out of the guide groove 10 to the outside. The winding rod 2 has the guide groove 1
0 is guided into the guide groove 10 from the upper opening. [FIG. 7] The winding rod 2 passes through the convex portion 12 and enters the bottom of the guide groove 10. When the winding rod 2 enters this position, the stopper arm 6 is moved to the end lever 14.
With the rotation torque of, as shown by the arrow A, it is moved to a position where it comes into contact with the projection 12. [FIG. 8] As shown by an arrow B in FIG. 7, when the winding rod 2 is rotated to wind the sheet 3 and raised, the winding rod 2 is brought into contact with the stopper surface 6A of the stopper arm 6 and the projection 12.
Abuts the lower surface of. In this state, the sheet 3 cannot be wound up by the winding rod 2. Therefore, the winding rod 2 is urged in the winding direction of the sheet 3, or
By making the winding rod 2 not rotate, the winding rod 2 is held at the fixed position of the guide groove 10.

In order to urge the winding rod 2 in the winding direction of the sheet 3, a lever arm is fixed to an end of the winding rod, and an elastic body such as a spring is connected to the end of the lever arm, though not shown. Then, one end of the elastic body is connected to the building. Further, when the string-like body is connected to the end of the end lever, the winding rod can be prevented from rotating.

In the sheet stretching apparatus of the present invention, when the sheet 3 is stretched on the roof, the winding rod 2 connecting the sheet 3 is once guided to the bottom surface of the guide groove 10, and then the stopper arm 6 is rotated to rotate again. The winding rod 2 is wound up and brought into contact with the stopper surface 6A to apply tension. Even when an external force is applied by wind or the like, the sheet is in contact with the stopper surface 6A, so that the sheet can be surely spread without the winding rod 2 coming off the fixed position. Also, even when sudden wind and rain is blowing, the winding rod 2 is stored in the guide groove 10,
The fluttering can be prevented against a certain amount of wind only by rotating the stopper arm 6.

When the winding rod 2 is removed from the fixed position of the guide groove 10 and the sheet 3 is wound up to open the roof of the building, the following procedure is performed. The rotation shaft 5 is rotated by the end lever 14. In FIG. 6, the rotating shaft 5 is rotated clockwise as indicated by an arrow. The rotating shaft 5 rotated in this direction moves the stopper arm 6 outside the guide groove 10. In this state, the stopper arm 6 separates from the projection 12. Therefore, the winding rod 2 can pass between the projection 12 and the stopper arm 6. When the winding rod 2 is rotated in this state, the sheet 3 is wound, and the winding rod 2 is pulled up from the guide groove 10 to the outside.

In the sheet stretching apparatus of the embodiment described above, the rotation shaft 5 disposed in parallel with the winding rod 2 is rotated, and the stopper arm 6 fixed to the rotation shaft 5 is rotated.
However, in the sheet stretching apparatus of the present invention, as shown in FIGS. 9 to 12, the stopper arm 6 can be rotated by moving the expanding rod 21 in the axial direction via the wire 20.

The sheet stretching apparatus shown in FIGS. 9 to 12 comprises a connecting member 4, a stopper arm 6 rotatably connected to one end of the connecting member 4, and an axially moving stopper arm 6. An expanding rod 21 for rotating and a wire 20 for moving the expanding rod 21 in the axial direction are provided.

The connecting member 4 has a fixing portion 4A fixed to the building.
And an end connecting portion 4D for rotatably connecting the stopper arm 6, and a connecting arm portion 4C for connecting the fixed portion 4A and the end connecting portion 4D. The connection arm portion 4C has an end connection portion 4D at one upper end, and connects the fixed portion 4A to the other upper end. The end connector 4D is
One end of the stopper arm 6 is rotatably connected. Further, similarly to the above-described sheet stretching apparatus, the connecting tool 4 has a guide groove 10 having an upper opening through which the winding rod 2 can be inserted by the connecting arm 4C by forming the entire shape of the metal plate into a U-curve shape. The upper opening is a passage gap 11 through which the winding rod 2 can pass.

The stopper arm 6 has, at its upper end, a rotary connecting portion 6B connected to the end connecting portion 4D of the connecting tool 4, and extends downward from the rotary connecting portion 6B to provide a cylindrical portion 6D at the lower portion. ing. The cylindrical portion 6D is formed in a rectangular cylindrical shape extending in the horizontal direction, and has a cross-sectional shape that gradually increases in width downward. The stopper arm 6 having this shape is manufactured by molding a metal plate or a resin.

The stopper arm 6 connects the rotary connecting member 6B with
The connecting member 4 is rotatably connected to the end connecting portion 4D. The rotation connecting portion 6B of the stopper arm 6 and the connecting member 4
The end connecting member 4D of the above can be constituted by, for example, a rotating shaft and a cylindrical body that supports the rotating shaft, and can be structured to rotate relatively.
The center axis of rotation of the stopper arm 6 is set in a direction parallel to the winding rod 2 as shown in FIGS.

Further, the stopper arm 6 has a total length for preventing the winding rod 2 from going out of the guide groove 10 to the outside, and has a lower end holding the upper surface of the winding rod 2 guided by the guide groove 10. And has a stopper surface 6A. The stopper arm 6 shown in the figure has a stopper surface 6A formed by molding the lower surface of the cylindrical portion 6D into a groove shape. When the stopper arm 6 is rotated toward the building frame as shown by the arrow in FIG. 11, the lower end of the stopper arm 6 comes into contact with the projection 12 of the connecting arm 4C, and the stopper arm 6 is positioned below the projection 12. The rod 2 is held out of the guide groove 10.

Further, the stopper arm 6 is provided with a curved concave portion 6C between the rotation connecting portion 6B and the stopper surface 6A. The curved concave portion 6C is formed to have a radius of curvature substantially equal to or slightly larger than the outer diameter of the expanding rod 21 so that the expanding rod 21 can be inserted therein. The stopper arm 6 shown in the drawing has a part of the curved concave portion 6C as the upper surface of the cylindrical portion 6D. An insertion gap 22 through which the expanding rod 21 passes is provided inside the curved concave portion 6C and between the connecting arm portion 4C. Expanding rod 21 in insertion gap 22
Is inserted, the insertion gap 22 is expanded, and the stopper arm 6 is rotated.

The connecting tool 4 shown in the figure is provided with a curved surface 4E by bending a position facing the curved concave portion 6C at the distal end of the connecting arm portion 4C. Constitute the insertion gap 22. The insertion gap 22 of this structure has a feature that the spreading rod 21 can be guided to a more accurate position. As shown in FIG. 11, the insertion gap 22 formed by the curved surface 4E and the curved concave portion 6C has the lower end of the stopper arm 6 in contact with the convex portion 12 of the connecting arm portion 4C when the expanding rod 21 is inserted. The take-up rod 2 is provided so as to be in contact therewith and held in the guide groove 10.

Further, in the sheet stretching apparatus shown in the figure, an opening 23 through which the cylindrical portion 6D of the stopper arm 6 passes is opened at the tip of the connecting arm 4C. The connecting arm portion 4C of this structure can move inside and outside the guide groove 10 by passing the cylindrical portion 6D of the stopper arm 6 through the opening 23.
However, in the sheet stretching apparatus of the present invention, the stopper arm can be provided inside the guide groove without providing the opening. In the sheet stretching apparatus having this structure, the stopper arm is moved to a position where the stopper arm does not interfere when the take-up rod is put in and out of the guide groove, and to a position where the take-up rod is held.

The expanding rod 21 is formed in a cylindrical shape along the wire 20. The expanding rod 21 is fixed to the wire 20 with the wire 20 penetrating the center thereof. The expanding rod 21 is fixed to the wire 20 at a predetermined interval. The interval fixed to the wire 20 is made equal to the interval of the coupling 4 fixed to the building. This is for operating the stopper arms 6 connected to the plurality of connecting tools 4 together. In the expanding rod 21 shown in the figure, both ends of the cylinder are gradually tapered. The expanding rod 21 having this shape has a feature that the wire rod 20 can be pulled and quickly guided to the insertion gap 22.

As the wire 20, a flexible member such as a rope or a wire is used. The flexible wire 20 is characterized in that a plurality of connecting tools 4 fixed to a building at predetermined intervals can be stretched without necessarily connecting them in a straight line, even if the positions are slightly shifted. is there. Further, the flexible wire 20 can be very easily pulled in a predetermined direction by winding the end around a drum or the like and winding it up with a handle or the like.

The sheet stretching apparatus 1 having the above structure holds the winding rod 2 in a fixed position as described below. FIG. 10 shows a state where the expanding rod 21 is not inserted into the insertion gap 22 of the stopper arm 6. The expanding rod 21 is located at a position shown by a chain line in FIG. 12, and the stopper arm 6 is rotating clockwise in FIG. The stopper arm 6 is located outside the passage of the winding rod 2 that is inserted into and removed from the guide groove 10 with the cylindrical portion 6D protruding outward from the opening 23.
At this time, the winding rod 2 is in a state where it can freely pass through the insertion gap 11, and in this state, the winding rod 2 is put in and out of the guide groove 10.

As shown by the arrow in FIG. 10, the winding rod 2 is guided from the upper opening of the guide groove 10 into the guide groove 10. The winding rod 2 passes through the convex portion 12 and penetrates to the bottom of the guide groove 10. Winding rod 2
The wire 20 is pulled in the direction shown by the arrow in FIG. 9 to guide the expanding rod 21 into the insertion gap 22. The expanding rod 21 inserted into the insertion gap 22
The insertion gap 22 is expanded, and the stopper arm 6 is rotated in the direction shown by the arrow in FIG. The stopper arm 6 is moved to a position where the stopper arm 6 comes into contact with the convex portion 12 by the rotational torque.

In this state, as shown in FIG. 11, when the take-up rod 2 is rotated to wind the sheet 3 and is raised, the take-up rod 2 is brought into contact with the stopper surface 6 A of the stopper arm 6 and the lower surface of the projection 12. Abut. In this state,
The sheet 3 cannot be wound up by the winding rod 2. Therefore, the winding rod 2 is held in a fixed position of the guide groove 10 by urging the winding rod 2 in the winding direction of the sheet 3 or by keeping the winding rod 2 in a non-rotating state.

When the winding rod 2 is removed from the fixed position of the guide groove 10 and the sheet 3 is rolled up to open the roof of the building, the following procedure is performed. The wire rod 20 is pulled, and the expanding rod 21 is pulled out from the curved concave portion 6C. As shown in FIG. 10, the stopper arm 6 rotates clockwise by its own weight and moves to the outside of the guide groove 10. When the stopper arm 6 separates from the projection 12, the projection 12
A state in which the winding rod 2 can pass between the arm and the stopper arm 6 is obtained. When the winding rod 2 is rotated in this state, the sheet 3 is wound, and the winding rod 2 is pulled up from the guide groove 10 to the outside.

[0047]

The roof sheet stretching apparatus of the present invention has a feature that the winding rod connecting the sheets can be securely held. This is because the sheet stretching apparatus of the present invention inserts the winding rod into the guide groove that opens upward, and presses the winding rod from above with the stopper arm to hold the winding rod so as not to come out of the guide groove. The stopper arm extends downward from above and holds the winding rod with a stopper surface provided at the lower end. In order to hold the winding rod in this state, the winding rod does not come out of the guide groove unless the stopper arm rotates, so that the winding rod can be reliably held at the fixed position. For this reason, even if the sheet is strongly pulled by strong wind, there is a feature that the roof can be reliably closed with the sheet without the winding rod being displaced from the fixed position.

Further, the sheet stretching apparatus of the present invention has a feature that it can be mass-produced at a low cost with a simple structure. That is, the apparatus of the present invention has a simple structure of a connecting tool and a stopper arm that can be manufactured by pressing a metal plate, a rotating shaft that can use a commercially available inexpensive metal pipe, or a wire rod fixed to a rod. It is because it consists of.

Further, the sheet tensioning device for rotating the stopper arm by moving the expanding rod in the axial direction with the wire material is as follows.
There is a feature that the stopper arms connected to the plurality of connecting tools can be easily and easily rotated together. In addition, the seating apparatus has a feature that a plurality of connecting tools fixed to a building at predetermined intervals can be installed without necessarily connecting them in a straight line, so that they can be easily constructed and used conveniently.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an example of use of a conventional sheet stretching apparatus.

FIG. 2 is an enlarged perspective view of the sheet stretching apparatus shown in FIG.

FIG. 3 is a schematic view showing an example of use of a roof sheeting apparatus according to an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a roof sheeting apparatus according to an embodiment of the present invention.

FIG. 5 is an enlarged sectional view showing a use state of the roof sheet stretching apparatus according to the embodiment of the present invention.

FIG. 6 is an enlarged sectional view showing a use state of the roof sheet stretching apparatus according to the embodiment of the present invention.

FIG. 7 is an enlarged sectional view showing a use state of the roof sheet stretching apparatus according to the embodiment of the present invention.

FIG. 8 is an enlarged sectional view showing a use state of the roof sheet stretching apparatus according to the embodiment of the present invention.

FIG. 9 is an exploded perspective view of a roof sheeting apparatus according to another embodiment of the present invention.

FIG. 10 is an enlarged sectional view showing a use state of the roof sheet stretching apparatus shown in FIG. 9;

FIG. 11 is an enlarged sectional view showing a use state of the roof sheeting apparatus shown in FIG. 9;

FIG. 12 is a horizontal sectional view showing the roof sheet stretching apparatus shown in FIG. 11;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sheet tension apparatus 2 ... Winding rod 3 ... Sheet 4 ... Connecting tool 4A ... Fixing part 4
B: connecting cylinder 4C: connecting arm portion 4D: end connecting portion 4E: curved surface 5: rotary shaft 6: stopper arm 6A: stopper surface 6
B: Rotational connection part 6C: Curved concave part 6D: Cylindrical part 7: Through hole 8: Clamping fitting 8A: V groove 9: Frame 10: Guide groove 11: Passing gap 12: Convex part 13: Notch part 14: End lever 15 ... Roof frame 16 ... Pocket plate 17 ... Pulley 18 ... Rope 19 ... Spring 20 ... Wire rod 21 ... Expanding rod 22 ... Insertion gap 23 ... Opening

Claims (5)

(57) [Claims] An apparatus for holding a take-up rod (2) connecting a sheet (3) to be stretched on a roof in a fixed position in a non-rotating state, having all of the following configurations. Roof sheeting equipment. (A) A sheet tensioning device is provided with a rotating shaft (5) mounted on a building so as to be rotatable in parallel with a winding rod (2) via a connecting member (4), and a predetermined rotation shaft. And a stopper arm (6) that is fixed at an interval. (B) The coupling (4) is a fixing part (4A) that is fixed to the building
And the connecting cylinder (4B) that holds the rotating shaft (5) so that it can rotate
And a connecting arm (4C) for connecting the connecting cylinder (4B) and the fixed part (4A). (C) The connecting arm (4C) connects the connecting tube (4B) to the tip. (D) The connecting arm portion (4C) has a guide groove (10) having an upper opening into which the winding rod (2) can be inserted.
The upper opening of the is a passage gap through which the winding rod (2) can pass.
(11). (E) The stopper arm (6) extends downward from the rotation shaft (5), and has a stopper surface (6A) holding the upper surface of the winding rod (2) guided by the guide groove (10) at a lower end. And has a total length that prevents the winding rod (2) from going outside through the guide groove (10). (F) The stopper arm (6) is a take-up rod that is moved into and out of the guide groove (10) by the rotation of the rotating shaft (5).
The winding rod (2) is moved to the outside of the passage and to a stop position where the winding rod (2) is stopped at a fixed position of the guide groove (10) while holding the upper surface of the winding rod (2). 2. A device for holding a take-up rod (2) connecting a sheet (3) to be stretched on a roof in a fixed position without rotating, having all of the following configurations. Roof sheeting equipment. (A) The sheet tensioning device comprises a connector (4) and the connector
Stopper arm (6) pivotally connected to (4)
And an expanding rod (21) that is moved in the axial direction to rotate the stopper arm (6), and a wire (20) that moves the expanding rod (21) in the axial direction. (B) The coupling (4) is a fixing part (4A) that is fixed to the building
And an end connecting portion (4D) for rotatably holding the stopper arm (6), and a connecting arm portion (4C) for connecting the end connecting portion (4D) and the fixed portion (4A). . (C) The connecting arm (4C) has an end connecting part (4D) at the tip.
Is provided. (D) The connecting arm portion (4C) has a guide groove (10) having an upper opening into which the winding rod (2) can be inserted.
The upper opening is an insertion gap through which the winding rod (2) can pass.
(22). (E) The stopper arm (6) is the end connecting part of the connecting tool (4).
The upper surface of the winding rod (2), which has a rotary connecting portion (6B) connected to (4D) at the upper end, extends downward from the rotary connecting portion (6B), and is guided by the guide groove (10). Stopper surface (6
A) at the lower end, and the winding rod (2) has the guide groove (10).
Has an overall length that prevents it from exiting from the outside. (F) The stopper arm (6) has a curved concave portion (6C) between the rotary connecting portion (6B) and the stopper surface (6A).
An insertion gap (22) is provided inside the (6C) and between the connecting arm (4C) and the expanding rod (21). (G) The stopper arm (6) is rotated by pulling the wire (20) to put the expanding rod (21) in and out of the insertion gap (22), and is rotated to take out and put in the guide groove (10). The take-up rod (2) is moved to the outside of the passage and to a stop position for holding the top surface of the take-up rod (2) and stopping the take-up rod (2) at a fixed position of the guide groove (10). 3. The connecting arm (4C) has a projection (12) for stopping the winding rod (2), and the projection (12) and the stopper surface (6A) of the stopper arm (6) are connected to each other. The roof sheet stretching apparatus according to claim 1 or 2, wherein the winding rod (2) is stopped at a fixed position in the guide groove (10). 4. The roof according to claim 1, wherein a notch (13) or an opening (23) through which the stopper arm (6) passes is opened at the tip of the connecting arm (4C). Sheeting equipment. 5. The connecting arm portion (4C) has a U-shaped bent metal plate, and has a connecting cylinder (4B) or an end connecting portion at one end.
3. The roof sheet stretching apparatus according to claim 1, wherein the (4D) is provided with a fixing portion (4A) at the other end.