JPH1136757A - Blind type winterized shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure the visibility of the outside even by interrupting a shutter in a platform-shaped factory such as a propane packing factory, to adjust the inflow of the outside air, to improve daylighting properties and air permeability and to attain the safety of works. SOLUTION: Rectangular transparent plates 1 are supported by window frames 4 consisting of shape steel and slats 5 are formed, and supporting points 6 as the centers of rotation are set at central sections at both ends of the slats 5. The slats 5 can be lifted and lowered by forward and reversely turning a horizontal main shaft 11 in a large number of the slats 5 horizontally disposed in the vertical direction, and the angles of the slats 5 can be adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter for cold protection for a filling worker in a propane gas filling factory.

[0002]

2. Description of the Related Art Conventionally, a propane gas filling factory (FIG. 9) is provided on a floor surface approximately 1 m above the ground, has a platform shape on both sides, and has an empty bottle loading truck on one side and an actual bottle loading truck on the other side. Requires a cold shutter for the filling worker. As the shutter, an overhead door, a fire shutter, a sheet shutter, or the like was used. However, when these doors or shutters are closed, they cannot see through the outside, cannot adjust the inflow of outside air delicately, has poor lighting, poor ventilation, and lacks safety for workers. was there.

[0003]

SUMMARY OF THE INVENTION According to the present invention, even if a shutter is shut off in a platform-type factory such as a propane gas filling factory, it is possible to see through the outside and to control the inflow of outside air. Rich in daylight and breathability,
The purpose is to measure the safety of work.

[0004]

In order to achieve the above object, the present invention provides a slat lifting / lowering drum and a slat rotating pulley on a forward / reverse rotating horizontal main shaft mounted on a machine frame. A torque limiter is interposed between the main shaft and the slat. When the slat is raised and lowered, the slat rotation stop projection provided on the wheel is alternately blocked by the stopper provided on the machine frame. The slats are rotated from the inclined direction to the horizontal direction when the slats are raised, and each slat is rotated from the horizontal direction to the inclined direction when the slats are lowered, forming a rectangular transparent plate. A blind type in which a slat is formed by supporting it in a steel window frame and guide rollers provided at the center of both ends of the slat are slidably engaged with a vertical guide rail. The cold shutter according to the first aspect, wherein a worm gear is provided on the main shaft, and a forward / reverse rotation device is provided on a worm shaft of the worm that meshes with the worm gear. First
Two blind-type cold protection shutter frames according to the invention are provided directly above the uppermost slat with a gap therebetween, and the sling wound around the wheel is passed through the gap by a guide roller, and each of the slings is separated by a guide roller. The wire rope wound around a drum for raising and lowering a blind type cold shutter according to any one of the first, second, and third inventions, wherein the wire is fixed to both side surfaces of the slat and the slat is rotated through the sling. Is guided by the guide rollers into the above-mentioned space, the wire rope is slidably inserted into the center through hole of each lower slat, and a slat lifting device is provided for each lower surface space of the upper and lower slats, and the lowermost slat is provided. The first, second, and third above, in which the lower end of the wire rope is connected to a slat lifting horizontal member disposed immediately below
Alternatively, when closing the shutter by lowering and rotating and tilting the blind-type cold-shutter slat according to any of the fourth inventions, the first, second, third, and the above-described first and second, third, and third slats are formed so as to interpose an air flow gap between the upper and lower slats. A blind cold protection shutter according to any one of the fourth and fifth inventions.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a shutter 27 for opening and closing a shutter 27 provided in a platform-like propane gas filling factory 25 (FIG. 9), an operating droop cord or chain 7 is operated up and down as shown by a broken line in FIG. When the horizontal main shaft 11 is rotated forward (arrow a), each slat 5,
The shutter 27 can be closed by rotating and lowering 5 ′ and 5 ″ in the tilt direction, respectively (the phantom line in FIG. 4). In this state, when the horizontal main shaft 11 is reversed (arrow b), the shaft 11 is rotated. The wheel 16 rotates together with the torque limiter 15 provided in each of the slats 5,
It is possible to rotate the 5 'and 5 "angles around the fulcrum 6 in the direction of arrow b from the imaginary line position (inclination position) to the solid line position (horizontal position) in FIG. 4 to adjust the rotation position. Can,
The ventilation w can be adjusted by adjusting the gap w between the upper and lower slats 5, 5. And the gap w or the slat 5,
The inside and outside of the entrance 26 can be seen through 5 ′ and 5 ″.

Instead of the operation hanging string or chain 7, a horizontal / reverse rotation brake motor (not shown) can be driven to rotate the horizontal main shaft 11 forward and backward.

As shown in FIG. 5, each slat 5, 5 ',
5 "is held horizontally, and in this state, the hanging string for operation or chain 7 is operated in the vertical direction, or the forward and reverse rotation brake motors are operated so that the slats 5, 5 ', 5" are shown in FIG. By raising as shown, the space between the floor surface 36 of the entrance 26 and the lowermost slat 5 ″ can be opened, and the entrance 26 can be opened.

Each of the slats 5, 5 ', 5 "is reinforced by a relatively thick rectangular transparent plate 1 sandwiched between a window frame 4 of an angled section steel 2 and a flat strip steel 3. The guide rollers 8, 8 provided at the fulcrum 6 at the center of both ends in the longitudinal direction are slidably engaged with the vertical guide rails 9, 9 to stop the swinging of both ends.

Immediately above the uppermost slat 5 ', two parallel horizontal machine frames 10, 10 made of U-shaped steel are spaced apart by a distance t.
And both ends thereof are supported by both side columns of the entrance 26. The horizontal main shaft 11 is placed just above the interval t on the horizontal machine frames 10 and 10 with the bearings 28, 2
8 to support. The worm 13 meshes with the worm gear 12 provided at one end of the shaft 11, and the worm shaft 13 ′ is supported by the machine case 29. This worm shaft 1
At the end of 3 ', a sprocket 14 is provided, and the endless chain 7 is hung downward. Instead of the sprocket 14, a winding string of a string (for example, a wire rope) may be used, or the output shaft of a forward / reverse deceleration motor may be connected to the worm shaft 13 ', or the forward / reverse rotation deceleration brake may be directly connected to the horizontal main shaft 11. The output shaft of the motor can be connected.

The horizontal main shaft 11 has a wheel 1
6 and 16 ′ are provided, one of the sheaves 16 ′ freely supports the shaft 11, and the other sheave 16 is provided on the shaft 11 via a torque limiter 15. The slat rotation stop projections 16a and 16b provided on the other wheel 16 are alternately and reversely blocked by stoppers S provided on the machine frames 10 and 10, and the torque limiter 15 and the other wheel 16 are rotated by a constant angle. Move, the main shaft 11
Does not rotate beyond a certain angle with the forward and reverse rotation of.
One of the pulleys 16 'is freely supported by the main shaft 11, and both the pulleys 16 and 16' are independent of the main shaft 11 and are simply engaged and rotated by the torque limiter 15 only between the protrusions 16a and 16b. The torque limiter 15 presses a disc spring or a coil spring fixed to the main shaft 11 against the side surface of the wheel 16 and exceeds the frictional resistance only when the protrusions 16a, 16b and the stopper S are engaged, so that the main shaft 11 is positive. It rotates in the opposite direction.

Further, slat lifting drums 20, 20 are fixed to the parallel main shaft 11 in the forward and reverse rotation directions and sliding directions via a power lock 30 instead of a key, and are wound around the drums 20, 20. The wire ropes 21, 21 are guided by the guide rollers 31 within the above-mentioned interval t, and the wire ropes 21, 21 are slidably inserted into the central narrow through holes 22, 22 of the lower slats 5, 5 ', 5 ". Then, a slat lifting tool 23 having a larger diameter than the center through hole 22 is provided for each lower surface of the upper and lower slats 5 and 5.

Sprocket 1 provided on worm shaft 13 '
The wire ropes 21 and 21 are wound by rotating the horizontal main shaft 11 forward and reverse through the worm 13 and the worm gear 12 by manually lifting and lowering the endless chain 7 through the worm 13, and winding the wire ropes 21 and 21 forward and backward. 6, the slats 5, 5 ', 5 "can be raised to open the doorway 26, or the wire ropes 21, 21 can be unwound to close the doorway 26 as shown in FIG. The worm shaft 13 'can be rotated forward and reverse by a forward and reverse rotation motor, or the output shaft of a forward and reverse brake motor can be connected to the horizontal main shaft 11 to rotate the main shaft 11 forward and backward.

In the lowered state, the slats 5 are inclined from the solid line position in FIG. 4 to the imaginary line position in the direction of arrow a in the upright state, and the upper and lower slats 5, 5 are closed. In this closed state, a slight ventilation gap w can be maintained between the upper and lower slats 5,5.

A power lock 30 (FIG. 6) is interposed between the drums 20 and 20 and the horizontal main shaft 11 so that the lengths to the lower ends of the wire ropes 21 and 21 can be easily adjusted to be constant. Let it.

As shown in FIG. 1, a plurality of slats 5, 5 ', 5 "can be used by connecting a plurality of slats in the same plane in the longitudinal direction to adjust the length.

In FIG. 9, 25 is a platform type propane factory, 32 is an empty cylinder carrying-in conveyor, 33 is a filling cylinder carrying-out conveyor, 34 is a filling turntable, and 35 is a platform wall of the factory.

[0017]

According to the present invention, since a slat is formed by supporting a rectangular transparent plate by a shaped steel window frame as described above, a transparent and strong slat can be obtained, and it can be used in a platform type factory such as a propane gas filling factory in winter. Block the cold wind,
In addition to being able to see through the interior from the outside, the angle of the slat in the closed state is adjusted by forward and reverse rotation of the horizontal main shaft, which has the effect of appropriately adjusting the outside air entry, and has the effect of preventing plant workers from cold. Can be held. In the present invention, the guide rollers provided at the center of both ends of the rectangular transparent plate can be engaged with the vertical guide rails on both sides to strengthen the closed state of the entire shutter, and individual rotations of the horizontal main shaft can be performed individually. There is an effect that not only the slat can be turned in the tilt direction and the horizontal direction but also the slat can be opened and closed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before a blind-type cold protection shutter of the present invention as a whole ascends.

FIG. 2 (a) is an enlarged front view of the torque limiter when ascending. (B) The figure is a front view of the drum with the slat raised.

FIG. 3A is an enlarged front view of the torque limiter at the time of lowering. (B) The figure is a front view of the drum with the slat raised.

FIG. 4 is a longitudinal sectional view taken along line AA of FIG. 1 showing a state in which a slat of a closing shutter is adjusted in angle.

FIG. 5 is a longitudinal sectional view taken along the line BB in FIG. 1;

FIG. 6 is a view showing a state in which all slats are raised.

FIG. 7 is a partially enlarged longitudinal sectional view of a slat.

FIG. 8 is a longitudinal sectional view of a power lock provided between a horizontal main shaft and a slat elevating drum.

FIG. 9 is a plan view of a propane gas filling factory.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rectangular transparent plate 2 section steel frame 3 flat steel frame 4 window frame 5 slat 5 ′ uppermost slat 5 ”lowermost slat 6 fulcrum 7 operation hanging chain 8 guide roller 9 vertical guide rail 10 parallel horizontal machine frame t interval 11 Horizontal main shaft 12 Worm gear 13 Worm 13 'Worm shaft 14 Sprocket 15 Torque limiter 16 Wheel 17 Sling 18 Guide roller 19 Fastening 20 Slat lifting drum 21 Wire rope 22 Center through hole 23 Slat lifting tool 24 Slat lifting horizontal Rod w Air flow gap

Claims (6)

[Claims] 1. A slat lifting drum and a slat rotation pulley are provided on a forward / reverse rotating horizontal main shaft mounted on a machine frame, and a torque limiter is interposed between the pulley and the main shaft. When the slats are raised and lowered, the slat rotation stop projections provided on the wheel are alternately and reversely blocked by the stoppers provided on the machine frame, and the torque limiter and the wheel are rotated by a certain angle in the forward and reverse directions. The slat is rotated from the inclined direction to the horizontal direction, and when the slat is lowered, each slat is formed to rotate from the horizontal direction to the inclined direction, and the slat is formed by supporting the rectangular transparent plate in the window frame made of shaped steel, Blind type cold shutter with guide rollers provided at the center of both ends of the slats slidably engaged with vertical guide rails. 2. The blind type cold protection shutter according to claim 1, wherein a worm gear is provided on the main shaft, and a forward / reverse rotation device is provided on a worm shaft of the worm that meshes with the worm gear. 3. The blind type cold weather shutter according to claim 1, further comprising a forward / reverse rotation motor for rotating the main shaft. 4. A machine frame is provided immediately above the uppermost slats at two intervals with a gap therebetween, and the sling wound around the sheave is passed through the gap by a guide roller, and the slings are attached to each of the slats. The blind type cold protection shutter according to any one of claims 1 to 3, wherein the shutter is fixed to both sides and each slat is rotated via the sling. 5. A wire rope wound around a slat lifting / lowering drum is guided into the above-mentioned space by a guide roller, and the wire rope is slidably inserted into a central through hole of each lower slat, and the upper and lower tiers are slidably inserted. The slat lifting device is provided at every lower surface interval of the slat, and the lower end of the wire rope is connected to a slat lifting horizontal member disposed immediately below the lowermost slat. Blind-type cold weather shutter. 6. An air flow gap is formed between upper and lower slats when closing a shutter by lowering and rotating the slats.
A blind-type cold weather shutter according to any of the above.