JPH02136479A - Membrane winding device for membrane roofs - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a membrane winding device for membrane roofs that is capable of expanding and rolling up membrane materials constituting membrane roof surfaces in membrane structures such as sports facilities. .

``Prior Art'' Recently, in order to enable sports and exhibitions to be held without being affected by the weather, construction of sports facilities and exhibition halls using membrane structures has become more popular.

Additionally, some conventional membrane structures have a roof membrane wrapped around them to let in natural light. in this case,
As shown in FIG. 10, a pair of guides 30 are arranged along the roof surface of the structure, and a rotating drum 31 with a drive device is provided at one end of the pair of guides. A slider 33 is attached to the tip of the membrane 32, and by pulling the slider with a winch 35 via a wire 34, the slider 33 is slid along a pair of guides 30, and the pus is spread out, thereby coating the roof surface. The membrane is covered with a drum and driven one rotation to wind up the membrane and store it.

``Problems to be Solved by the Invention'' Conventionally, there are systems in which the membrane roof of a membrane structure is opened and closed, but in that case, it was only applied to membranes installed in a relatively short span, and it was not possible to There were various problems in opening and closing the roof.

In other words, when trying to open and close a long-span membrane roof, the membrane winding drum becomes longer and the drum diameter also increases, making the drum itself heavier and bending. When unfolded, the membrane cannot be stretched evenly, causing wrinkles in the membrane. To correct these wrinkles, the winding drum is rotated in the opposite direction to create tension, but this tends to cause twisting of the drum shaft. In addition, the membrane cannot be tensioned all the way to the center, causing part of the membrane to sag.Furthermore, if a wrinkled or drooping membrane is wound, each winding will not be done evenly, so the membrane will be wound with wrinkles, causing wear and tear on the membrane. The damage caused was significant.

Therefore, the present invention reduces the weight of a long-span membrane winding drum for membrane roofs, holds the membrane in tension to prevent the membrane from sagging or sagging in the unfolded state, and allows the membrane to be rolled up and stored. The purpose is to prevent wrinkles from forming even when the membrane is stored, thereby preventing abrasion of the membrane during storage and unfolding.

"Means for Solving the Problems" The present invention provides a pair of guides arranged along the roof surface of a membrane structure, and a membrane winding drum wrapped with a membrane between one end of the pair of guides. At the same time, a slider that slides along a pair of guides is attached to the tip of the membrane, and this slider is connected to the tip of a wire wound around a winch, so that the membrane can be expanded and rolled up once along the pair of guides. Regarding the membrane winding device on the roof, even if the membrane winding drum is formed into a long span, it does not bend and the membrane is spread out well1.
It is designed so that it can be rolled up.

In other words, the film winding device has a film winding drum constructed with a long span, both ends of which are formed as drive parts, and a central shaft part between the drive parts at both ends formed of a truss-shaped frame, and both ends of which are formed into drive parts. It is rotatably connected to the drive unit, and a lightweight molded material is provided around the outer periphery of the truss-shaped frame.

In order to hold the membrane winding drum more stably without deflection, ring-shaped ribs are arranged at appropriate intervals in the axial direction of the membrane winding drum, and each ring-shaped rib is held by a roller supported by a support with a shock absorber. Just support it.

In order to prevent the membrane from sagging, a tensioning device may be provided, which consists of a T-shaped arm and a tensioning device that is connected to the T-shaped arm and extends and retracts. It can be engaged with the locking part on the butt.

In addition, in order to more reliably prevent the formation of pus wrinkles, a wrinkle-preventing regulating membrane device may be provided, which involves wrapping a belt-shaped cushioning material such as an air cap around the regulating membrane drum, and
The tip of the cushioning material was connected to the membrane tail so that the driving device for the adjustment drum and the driving device for the membrane winding drum could be driven in synchronism, so that the strip-shaped cushioning material could be wound between the membranes.

"Function" In the membrane winding device of the above means, even if the membrane winding drum is constructed over a long span, the central shaft between the driving parts at both ends is a truss-shaped frame and the outer periphery is made of lightweight molded material, so it is lightweight. It is difficult to bend and does not cause wrinkles in the membrane, and can be driven by a small-scale driving device.

The membrane winding drum has a truss-shaped frame rotatably connected between the driving parts at both ends, so the membrane can be removed by rotating the driving parts at both ends separately or in reverse, depending on the loosening of the membrane after the film is developed. can make you nervous. Note that the central portion of the winding drum does not receive any load during the unfolding and storing operation of the membrane, but only winds it up, so its strength may be small.

The support device for the take-up drum supports the take-up drum by moving the roller up and down according to the outer diameter of the wound membrane when the membrane is unfolded and rolled up, since the roller is held through a buffer device. Since the roller is supported by the ring-shaped rib of the winding drum, it can be stably held without causing any deflection.

The tensioning device is used when the membrane is loose after being expanded, and when its T-shaped arm is engaged with the locking part of the membrane tail, the tensioning device attached to the T-shaped arm pulls the membrane. By adjusting the tension of the tensioning device, it is possible to make the membrane flap or to resist external forces such as those caused by strong winds or snowfall.

Furthermore, when a wrinkling prevention adjusting membrane drum wrapped with a band-shaped cushioning material is provided, synchronizing the driving of the membrane winding red drum and adjusting membrane drum when winding up the membrane and winding up the cushioning material together with the membrane prevents the membrane from sagging. The thickness of the adjustment film can be made uniform in stages according to changes in size, thereby preventing wrinkles from forming.

"Example" A membrane winding device for a membrane roof according to the present invention will be explained with reference to FIGS. 1 to 9.

A pair of guides 1 are arranged in parallel along the roof surface of the membrane structure, and a membrane winding drum 2 is arranged at one end of the guides 1. As shown in FIG. 1, the membrane winding drum 2 is formed to have a long span approximately corresponding to the length between the pair of guides 1.1.
A membrane 3 covering the roof surface can be wrapped around it.

A slider 4 is attached to the tip of the pus 3, and both ends of the slider 4 are slid along a pair of guides 1. A winch 5 is disposed at the opposite end of the pair of guides l, and a wire 6 that can be wound into each winch 5 is connected to both ends of the slider and slider 4, so that the slider 4 is moved when the membrane layer is opened. It can be moved along guide 1.

As shown in FIG. 2, the membrane winding drum 2 has drive parts 2a formed at both ends thereof, and its outer rotating shaft 7 is connected to a rotation drive device for rotation. The central axis of the membrane winding drum 2 is formed into a truss-like frame 8, and a lightweight molded member 9 made of foamed resin is provided around the outer periphery of the truss-like frame 8.
It is formed to have the same outer diameter as the drive portion 2a. Note that both ends of the truss-shaped frame 8 are rotatably connected to the drive section 2a.

This prevents excessive force from acting on it. Further, the membrane winding drum 2 is provided with ring-shaped ribs 1O at appropriate intervals in the axial direction, and the ring-shaped ribs 1O are supported by a support device shown in FIG. 4.

The support device holds each ring-shaped rib portion with a pair of rollers 12 to prevent the long span membrane winding drum 2 from sagging. The outer periphery of each roller 12 is lined with rubber, and the bearing of each roller is held by a support 13 equipped with a shock absorber 13a such as a spring, oil pressure, air pressure, etc., and each support support 13 is fixed to a pedestal 14. Note that roller 12
The reason why the buffer device 13a is provided in the holding part is that the membrane 3 is rolled up together with the band-shaped buffer material 21, as will be described later, so that when there is a slight difference in the outer diameter at each position in the axial direction, it can be held accordingly. This is to ensure that.

Behind the membrane winding drum 2, a plurality of tensioning devices 15 are provided for tensioning the membrane 3. The tensioning device 15 has a configuration in which a single-shaped arm 16 is fixed to an anchored pedestal 18 via an extensible tensioning tool 17, and both lateral portions 16a of the distal end of the single-shaped arm 16 are extendable and retractable. It has become. Furthermore, locking portions 19 are provided at the membrane tail portion of the membrane 3, with which both lateral tips of the single-shaped arms 16 are engaged, and the locking portions 19 are attached by sewing canvas to the membrane 3. After the single-shaped arm 16 is engaged with the locking portion 19, the tensioning device 17 is adjusted to apply tension to the membrane 3 evenly.

In front of the membrane winding drum 2, as shown in FIG.
S) makes it possible to prevent wrinkles from forming in the pus 3 involved. The wrinkle prevention adjustment film device 20 includes:
It is composed of a belt-shaped cushioning material 21 such as an air cap, and an adjustment membrane drum 22 that wraps it around. It has become. A rotary drive device (not shown) for the wrinkle prevention adjusting membrane drum 22 is adapted to be fed out and rotated in synchronization with the winding of the membrane winding drum 2 by the rotary drive device. And 1113 when the belly rolls
Even if sagging occurs, since the cushioning material 21 is wound together with the membrane 3, wrinkles do not occur in the wound membrane.

"Effects of the Invention" According to the membrane winding device for membrane roofs of the present invention, the pus winding lid drum is divided into three parts, both ends are used as driving parts, and the central part is provided with a lightweight molded material around the outer periphery of the truss-like frame. Because of its structure, even if it is formed into a long span, it is lightweight and does not easily bend.Furthermore, because it is lightweight, there is no burden on the drive device, and it can be driven by a small-scale drive device, which reduces machine equipment costs. becomes cheaper. In addition, the membrane winding drum is formed to have a long span, but since it is supported by support devices placed at appropriate intervals, it is more reliably prevented from sagging, and wrinkles are not caused in the membrane when it is wound up and stored. do not have.

In addition, when the membrane is in the unfolded state, the membrane tail can be pulled by a tensioning device, and by adjusting the tension so that an even and appropriate tension is applied to the center of the membrane, it can be used against strong winds and snowfall.

Furthermore, when the IIIa is delivered, the band-shaped cushioning material of the anti-wrinkle adjusting membrane device is rolled up between the membranes at the same time, so even if there is a sagging part on the membrane when the membrane is stored.

It can be rolled up without causing wrinkles, thereby preventing wear on the membrane and preventing its deterioration.

Thus, by taking the above measures, it is possible to construct a long-span membrane roof at each facility. Note that the present invention may be carried out by combining all or part of each device depending on the scale of the membrane structure.

Can be attached to other devices6

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an outline of the membrane winding device of the present invention, FIG. 2 is a vertical sectional view of the membrane winding drum, and FIG.
4 is a cross-sectional view showing a support device for the winding drum, FIG. 5 is a perspective view showing a membrane tensioning device, FIG. 6 is a perspective view of a single-shaped arm of the tensioning device, Fig. 7 is a perspective view of the 1-shaped arm engaged with the locking part of the membrane, Fig. 8 is a perspective view of the wrinkle prevention AM membrane device, and Fig. 9 is the operation of the wrinkle prevention adjustment membrane device. FIG. 10 is a perspective view of a conventional film winding device. l Ni guide 2: Taking over drum 3: Membrane
4 Varnish slider - 8 Nidra-like framework 12: Roller 15: Tension device 16: 1-shaped arm 20: Adjustment film device for wrinkle prevention Fig. 1

Claims (4)

[Claims] (1) A pair of guides is arranged along the roof surface of the membrane structure, a membrane winding drum with a membrane wound thereon is provided between one end of the pair of guides, and a pair of guides is provided at the tip of the membrane. A membrane winding device for a membrane roof is equipped with a slider that slides along a winch, and the tip of a wire wound around a winch is connected to this slider, so that the membrane can be rolled out and rolled up along a pair of guides. The film winding drum is constructed in a long span, with both ends forming driving parts, and the central shaft part between the driving parts at both ends is constructed of a truss-shaped frame, and both ends are freely rotatably connected to each of the driving parts. A membrane winding device for a membrane roof, further comprising a lightweight molded material provided on the outer periphery of the truss-shaped frame. (2) Claim (1) characterized in that ring-shaped ribs are arranged at appropriate intervals in the axial direction of the membrane winding drum, and each ring-shaped rib is supported by a roller held by a support with a shock absorbing device. Membrane winding device for membrane roofs. (3) Install a telescopic tensioner near the membrane winding drum.
The membrane roof according to claim 1 or 2, characterized in that the tensioning device attached to the T-shaped arm is disposed, and a locking part for engaging the tip of the T-shaped arm is provided at the membrane tail. Membrane winding device. (4) Arrange the adjusting membrane drum for wrinkle prevention near the membrane winding drum, connect the tip of a band-shaped cushioning material such as an air cap wrapped around it to the membrane bottom, and connect the driving device of the adjusting membrane drum and the membrane. The membrane roof according to claim (1), (2) or (3), characterized in that the drive device for the winding drum can be driven in synchronization with the winding drum, so that the buffer material can be wound between the membranes at the same time as the membrane is housed. Membrane winding device.