JP2987320B2 - Seat opening and closing mechanism in a temporary tent - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary tent used in civil engineering and construction sites for building construction to avoid wind and rain and direct sunlight, and more particularly, to partially open and close a stretched tent. The present invention relates to a roof sheet opening and closing mechanism for a tent in which a heavy object lifted by a crane or the like installed outside the tent can be directly carried into or taken out of the tent.

[0002]

2. Description of the Related Art In a construction site of a building in civil engineering, a lightweight temporary tent or an air-expandable temporary tent (hereinafter, referred to as an inflatable temporary tent) for the purpose of maintaining a good working environment.
The area is covered with a temporary tent (to be collectively referred to as a temporary tent), thereby avoiding wind and rain and direct sunlight. Even at a construction site covered with a temporary tent, various heavy equipment is loaded into the tent via a crane, etc.
Or you need to carry it out. For this reason, an attempt to achieve the above object by sliding the roof sheet in the longitudinal direction to open or shield part or all of the roof surface is disclosed in Japanese Patent Application Laid-Open No. 6-330639. As is already known. However, the conventional type described above has the following problems, and improvement measures have been combined. That is, the roof sheet corresponding to the opening on the roof surface is
Since this was wound by a winding drum provided near the ground surface outside the framed scaffolding constituting the vertical wall of the temporary tent, if the height of the scaffold was low, the length of hanging down the roof sheet would be longer. It becomes shorter and the opening area of the roof decreases. Further, when the roof sheet is folded back in a zigzag manner on the outer surface of the scaffold and then wound by the winding drum in order to increase the opening, the sheet weight is greatly increased, so that winding resistance is large. As a result, it is difficult to operate smoothly.

[0003] Furthermore, if the winding drum is used when the eave height of the temporary tent is low, the diameter of the drum is inevitably increased, and the sheet weight is also increased. In addition, in order to guide the sheet, it becomes difficult to wind the retaining material (core material) having a circular cross section attached to the both ears together with the sheet into the drum. There was also a problem that the sheet was displaced and was damaged by friction.

[0004]

SUMMARY OF THE INVENTION The present invention provides a new type of roof sheet which can be opened and closed without the disadvantages associated with the conventional type. In other words, it is intended to be able to open and close the roof sheet smoothly at all times without being affected by the height of the eaves in the temporary tent and the size of the roof span, and to achieve the objective with extremely simple facilities. .

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention employs the following means. That is, a guide groove is opened on at least a side surface of a guide member integrally formed with the roof material or a guide member attached separately along the longitudinal direction of the long roof material, and a roof sheet is provided in the guide groove. In a temporary tent in which the roof sheet is stretched by inserting a rope-shaped retaining material provided in both ears of the tent, on one of the outer side walls of the tent sandwiching the roof surface, A winch mechanism for winding or feeding out the edge of the roof sheet is attached, and the sheet is forcibly moved toward the side wall while holding the sheet on the other side wall, and , A guide motor with a clutch is preferably mounted on a take-up drum constituting a winch. One, the two roller mechanism for holding the roof sheeting preferably set to the following configuration. That is, the two rollers are pressed against each other via tension springs attached to the respective roller shafts, and one of the rollers is driven via a motor with a clutch, and the other is freely rotatable. Appropriate to support.

In the practice, a rectangular member having a hollow cross section is used, and a guide groove which opens outward at least at two or more corners of the rectangular member is formed integrally with the rectangular member. It is desirable to use the wire rope, which is connected to the edge of the roof sheet attached to the roofing material, by using a winding drum constituting a part of a winch, or by loosening the winch. It is good to let it open and to open and close the roof. Thus, according to the present invention, the degree of opening and closing of the roof area in the temporary tent can be variably maintained, in other words, the roof sheet located directly above the place where the heavy object is to be loaded or unloaded can be arbitrarily widened by power. The roof sheet can be opened and unloaded directly by an outdoor crane, and the roof sheet can be restored by performing power operation in the opposite direction after the work, and the work site can be protected from wind, rain, heat and heat, etc. That can be protected.

[0007]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of the entire temporary tent incorporating the opening / closing mechanism of the present invention. As an example, a pillar 11 which is vertically installed everywhere and a wedge-shaped frame 12 having a mountain-shaped slope extending over the pillar 11 are equally spaced. 5 frames, and each of the four spans formed by the roof sheets 13
To form a continuous temporary tent. Although the figure shows a frame with a mountain slope, the frame may be a single slope, or may be used for a roof with no slope in some cases. Further, in the drawing, a roof sheet is stretched over every other span, and a part of the roof sheet is opened for each of two adjacent spans.

Hereinafter, a specific example of a mechanism for opening and closing a roof sheet will be described. In the present invention, the roof material 12a of the end face frame 12 is made of, for example, a square material made of an aluminum alloy as shown in FIG. As shown in the figure, the square member is formed of a square tube having a hollow inside, and a guide groove 14 that opens outward is formed at four corners. On the other hand, as is clear from the enlarged view of FIG. 5, a retaining member 15 having a circular cross section is inserted into this guide groove.
In this case, after the ears of the roof sheet 13 are wound around the retaining member 15, the one integrated with the roof sheet 13 is loosely inserted into the groove 14. Incidentally, the roof material does not necessarily have to be the square material as described above, and a roof material 12b having a circular cross section as shown in FIG. 6 may be used. Even in this case, it is necessary to integrally form the guide grooves 14 on both wings or only one side of the roofing material.

Next, the fitting relationship between the roof material 12a and the roof sheet 13 will be described with reference to FIGS. As described above, rope-shaped retaining members 15 are attached to the both ears along the longitudinal direction of the roof sheet 13 with a suture joint. on the other hand,
A guide groove 14 that opens outward is integrally provided in the upper corner of the aluminum alloy square member 12a having a hollow cross section, and the retaining member 15 is inserted into this groove together with the ear of the sheet. Then, the retaining material and the guide groove 1
4 prevents the roof sheet 13 from bending, so that rainwater does not accumulate even on a gentle roof slope. The roof sheet 13 is obtained by covering the surface of a polyester blend canvas with polyvinyl chloride as an example,
Waterproofing treatment and flameproofing treatment applied to the thickness of 0.5-0.
The one having a diameter of about 7 mm is used. As shown in the figure, the material of the retaining member 15 is not particularly limited as long as it is a rope-shaped member having a circular cross section and flexibility. The retaining material 1
As shown in FIG. 5A, the portion of the sheet 13 around which the ear portion of the sheet 13 is fixed is engaged with the seat 13 while maintaining a loose fit so as to be able to move freely in the guide groove.

FIG. 4B shows a modified example of the retaining material, in which both ears of the roof sheet 13 are sandwiched and adhered to edge pieces 15b of a flexible synthetic resin retaining material 15a. A thing may be used. Next, a modification of the guide groove 14 for guiding the movement of the roof sheet 13 will be described with reference to FIG. In this case, the rigidity of the roofing material is borne by an I-shaped steel indicated by reference numeral 12b, and a glasses-shaped guide member 12c is fixed thereon by bolts 18. Thereafter, the guide groove 14 formed in the member 12c is formed.
The retaining member 15 may be inserted together with the sheet via b to allow the sheet to slide in the groove.

FIGS. 1 and 2 show an outline of a winch mechanism 19 which is a wire rope winding device for stretching a roof sheet 13. That is, two hooks 17 are attached to one edge of the roof sheet 13, and a wire rope 20 is connected to each of the hooks 17 by the lock 21. Then, the rope 20 is wound around a winding drum 22, and the drum 22 is driven by a motor 23 with a clutch. The clutch is preferably an electromagnetic clutch, and transmits the rotation of the motor 23 to the winding drum 22 at the time of winding, and disconnects the output shaft of the motor 23 from the rotating shaft of the winding drum 22 at the time of rewinding. Electrical control In other words, when the winding drum 22 is driven by the motor 23, the roof sheet 13 is pulled through the wire rope 20 wound on the drum, and as a result, the sheet is provided on the roofing material 12a. It is guided by the guide groove 14, moves parallel to the roof surface, and operates to cover the roof surface. The above configuration describes the winding mechanism and operation of the wire rope when pulling up the roof sheet. Next, the configuration and operation of the rewinding side will be described.

One example of the rewinding side is as shown in FIG. 1 and FIG. 3. As shown in FIG. 3, the roof sheet 13 is discharged from the roof surface toward the outer wall of the temporary tent. 2 which presses against each other via the bracket 25
Install the roller mechanism. That is, as an example, two idle rollers 26 and two drive rollers 27 are laid horizontally in parallel, and then the sheet 13 is drawn between the rollers. As shown in FIG. 3, the support shaft of the idler roller 26 and the support shaft of the drive roller 27 have a tension spring 2 inside.
8 are housed in a stretchable tubular body 28a that accommodates them. Therefore, the roller 27 is constantly pressed in the direction of the roller 26 by the tensile force of the spring 28, and acts to strongly grip the sheet sandwiched between the rollers. As shown in FIG. 1, a drive pulley 29 is attached to the side of the drive roller 27, and a belt 30 is suspended between the pulley and a motor 31 with a clutch to drive the roller 27 to rotate. The clutch is an electromagnetic clutch, which electrically controls the rotation of the motor 31 to be transmitted to the roller 27 during normal rotation and the rotation of the drive pulley to be interrupted during reverse rotation. 3 and 8 show a state in which the entire surface of the roof sheet 13 except for the retaining material at both ears of the roof sheet 13 is sandwiched by the roller groups 26 and 27. In the figures, the roller 27 rotates forward in the direction of the arrow. Then, the roof sheet 13 is discharged to the outside of the roof slope to open the roof surface. By the way, rollers 26 and 27
Is preferably knurled or covered with hard rubber so as not to cause slippage with the roof sheet 13.

Next, the opening and closing operation of the roof sheet 13 according to the present invention will be described. When the roof sheet 13 is stretched as described above, the motor 23 is driven to drive the winding drum 2.
An operation is performed so that the wire rope 20 is wound around the wire 2. At this time, since the roof sheet 13 is pulled by the rope, the retaining member 15 fixed to the both ears of the sheet is also guided by the guide formed on the roof material 12a or 12b by the pulling force of the sheet. Groove 14
Cover the roof with a sheet. In other words,
When the winch 19 is operated by electrically operating the motor, the roof sheet 13 moves along the guide groove of the roofing material so as to cover the roof surface, and the sheet is moved to a desired position on the roof surface. When it reaches, the drive of the motor may be stopped there. Thus, it is possible to cover an area that needs to be shielded. When a motor with a clutch is used, the electromagnetic clutch of the motor 23 is electrically controlled so as to be engaged or disengaged, thereby causing the winding drum 22 to wind the wire rope 20. Accordingly, the roof sheet 13 may be rewound by freely rotating the drum 22.

That is, when the stretched roof sheet is once released, the drum 22 on which the wire rope 20 has been wound is freely rotated to rewind the rope 20 on the stretched side, and at the same time, on the side to be opened. The drive pulley 29 is operated by using a rewinding mechanism (see FIG. 3) provided on the outer wall surface on the opposite side of the wire rope attached to the roof sheet, whereby the drive roller 27 is rotated forward in the direction of the arrow. The roof sheet 13 is drained out of the roof slope, thereby partially opening the roof. The discharged roof sheet 13 is folded back in an alternately repeated state as shown in FIG. In this way, in the present invention, the stretched area of the sheet covering the roof surface can be set freely, or the open area of the roof surface can be set freely, and the loading and unloading of various equipment can be arbitrarily performed through the roof surface. It is something that can be done.

If a structure is adopted in which the reverse rotation of the drive roller 27 and the rewinding of the winding drum 22 can be performed relatively easily, the motor rotation can be directly transmitted to these without using a clutch. As in the example, when the motor is difficult to reverse from the driven side, for example, when a worm speed reduction mechanism is used and an electromagnetic clutch is used, the roof sheet 13 can be held in a locked state where it is not moved. That is, both the roller 27 and the winding drum 22 can be kept in a non-driving state.
There is also a convenience that the movement of the roof sheet can be restrained by setting all the electromagnetic clutches in a connected state even when a situation occurs in which the roof sheet is raised.

[0016]

According to the present invention, any part of the roof sheet constituting the temporary roof can be easily opened, so that a heavy object can be directly loaded or unloaded by an outdoor crane, and easy after work. The roof can be restored by closing the roof sheet. Further, in the conventional type, when the height of the side wall portion constituting the temporary tent is low, the larger the open area of the roof surface, the larger the amount of sheets to be stored in proportion to the open area, so that it is not large. Winding equipment is required. Not only that, the winding resistance of the sheet also increases, making it difficult to operate smoothly, but according to the present invention,
A winch mechanism is provided on one side wall, and a roller mechanism is arranged on the other side wall so as to bite and discharge the roof sheet. Extra sheet can be folded back beside the side wall. Therefore, the winding drum need only be of a relatively small diameter, and on top of that, the winding resistance is low, so it can be wound or unwound with a constant light force. It also has the advantage of being applicable.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entirety of a temporary roof incorporating a roof sheet opening / closing mechanism according to the present invention.

FIG. 2 is a sectional view showing an example of a winch mechanism which is a part of the opening and closing mechanism.

FIG. 3 is a side view showing a part of a roller device used to bite a roof sheet and discharge the sheet.

FIG. 4 is a partially enlarged perspective view showing a mounting relationship between a roof material and a roof sheet.

FIG. 5A is a partially enlarged cross-sectional view showing the fitting between the roofing material and the roof sheet. FIG. 5B is a partial cross-sectional view showing a modification of the retaining material attached to the ear of the roof sheet.

FIG. 6 is a cross-sectional view showing another embodiment of the roofing material, showing a state in which an edge of a roof sheet is engaged in a guide groove.

FIG. 7 is a partial perspective view showing an example in which a movement guide member of a roof sheet and a roof material are respectively configured by separate members.

FIG. 8 is a side view schematically showing a roller mechanism used when rewinding a roof sheet.

[Explanation of symbols]

 12 Wife frame 12a, 12b Roof material 13 Roof sheet 14 Guide groove 15 Retainer 17 Hook 19 Winch mechanism 20 Wire rope 21 Lock 22 Winding drum 23 Motor 25 Bracket 26 Idling roller 27 Drive roller 28 Tension spring 29 Pulley 30 Belt 31 Motor with clutch 32 Seat receiving box

Claims (4)

(57) [Claims] 1. A guide groove is opened along at least a side surface of a guide member integrally formed with a roof material along a longitudinal direction of the long roof material, or a guide member attached separately.
And, in the temporary tent in which the roof sheet is stretched by inserting the rope-shaped retaining material provided on both ears of the roof sheet into the guide groove, the outer tent sandwiching the roof surface is provided. On one side wall side, a winch mechanism for winding or feeding out the edge of the roof sheet is attached, and the sheet is forced toward the side wall side while holding the sheet on the other side wall side. 2. A sheet opening and closing mechanism in a temporary tent, comprising two guide roller mechanisms for merely moving the sheet and moving the sheet toward the opposite side. 2. An elongated rectangular member having a hollow cross section is used,
The seat opening / closing mechanism for a temporary tent according to claim 1, wherein a roof material having a guide groove that opens outward is formed in at least two or more corners of the rectangular material. 3. A mechanism for opening and closing a sheet in a temporary tent according to claim 1, wherein a motor with a clutch is mounted on a winding drum constituting a winch. 4. Two rollers for sandwiching a roof sheet,
4. A roller according to claim 1, wherein said rollers are pressed against each other via a tension spring attached to said shaft, and one of said rollers is driven by a motor with a clutch, and the other is freely rotatably supported. A seat opening / closing mechanism in the temporary tent according to any one of the above.