JP2012122191A - Horizontally pulling shutter mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shutter mechanism which allows a shutter having a heavy total weight with decorative material attached to the shutter surface to be opened or closed with light operation force.SOLUTION: A shutter mechanism comprises a first hook which is disposed movable up and down along an opening and detachably engages the lower end side of a shutter, a first balancing mechanism which actuates the first hook in upward direction, a second hook which is disposed movable in parallel with a shutter guiding direction on a horizontal support surface for the shutter of a horizontal support mechanism for the shutter and detachably engages the upper end side of the shutter, a second balancing mechanism which actuates the second hook in forward direction of the horizontal support surface for the shutter, a string member which connects to the upper end side of the shutter, and a third balancing mechanism which imparts an actuating force to the string member in the direction to attract the shutter onto the horizontal support surface for the shutter. The vertical weight of the shutter is counterbalanced by the actuating force of the balancing mechanisms, so that the shutter can be moved in an opening or closing direction with light operation force.

Description

  The present invention relates to a horizontal shutter mechanism that is used as an electric type or a manual type that opens and closes an opening of an enclosure structure.

  In this type of shutter mechanism, a shutter drum is disposed substantially horizontally with respect to the floor surface with respect to the upper end of the shutter guide, and the shutter is wound around the shutter drum from a substantially horizontal direction and substantially from the shutter drum. A lateral drawer type electric shutter mechanism that is pulled out toward the shutter guide in the horizontal direction has been developed by the present applicant and is known as a prior art. (For example, refer to Patent Document 1).

Japanese Patent No. 4183261

In the case of adopting a configuration in which a shutter is wound around a shutter drum in a conventional horizontal drawer shutter mechanism, the surfaces of the shutters are overlapped, and the surfaces are rubbed against each other and wound, so that the surface of the shutter is easily damaged. For this reason, decorative materials made of tile materials such as solid wood, PVC artificial stone, resin sculpture material, and color acrylic material cannot be applied to the surface of the shutter to improve the design of the surface of the shutter. Further, if a decorative material is pasted on the surface of the shutter, the weight of the shutter increases, and the strength of the mechanism that supports the shutter must be increased, and the building structure constituting the mechanism becomes large. Therefore, the ceiling part of the surrounding structure is increased in size, and there is a problem that the height of the opening of the surrounding structure cannot be sufficiently taken.
The present invention aims to solve the above problems.

In order to achieve the above-mentioned problems, the present invention comprises an envelope structure having an opening, a ceiling, and a bottom surface, and a belt-like shutter plate that is long in the horizontal direction with respect to the bottom surface, and is rotatably connected to each other. A shutter that is configured to be flexible as a whole, a shutter vertical guide mechanism that guides the shutter in a vertical direction along the opening, and the ceiling portion that supports the shutter so as to be slidable horizontally with respect to the bottom surface portion. A shutter horizontal support mechanism provided on the shutter, a shutter direction conversion guide means for changing the direction of movement of the shutter by 90 degrees, and detachably engaged with the lower end side of the shutter disposed so as to be movable up and down along the opening. A first hook mechanism, a first balance mechanism for urging the first hook in the upward direction, and a shutter horizontal support surface of the shutter horizontal support mechanism A second hook that is movably arranged in parallel to the shutter guide direction and that is detachably engaged with the upper end side of the shutter, and the second hook is attached to the front of the shutter horizontal support surface. A second balance mechanism for energizing, a string-like member connected to the upper end side of the shutter, and a third balance for applying an energizing force to the string-like member in a direction of pulling the shutter onto the shutter horizontal support surface. A drop force due to the weight of the shutter is canceled by the biasing force of the first balance mechanism and the third balance mechanism, and the horizontal portion of the shutter is moved in the shutter closing direction by the second balance mechanism. It is characterized by being energized.
In the present invention, the first balance mechanism may be disposed vertically on both sides of the opening, and a vertical spring composed of a coil spring with each lower end attached to the bottom surface, and an upper end of the vertical spring. An attached vertical spring moving pulley, a vertical spring constant pulley attached to the surrounding structure side, one end connected to the first hook, and an intermediate portion for the vertical spring constant pulley and the vertical spring It is characterized by comprising a string member for a vertical spring that is hung on a moving pulley and the other end is attached to the surrounding structure 2 side.
According to the present invention, the second balance mechanism is disposed horizontally on the ceiling part, and is attached to the other end of the horizontal spring including a horizontal spring comprising a coil spring having one end part attached to the surrounding structure side. A horizontal pulley for a horizontal spring, a horizontal pulley for a horizontal spring attached to the surrounding structure, one end connected to the second hook, and an intermediate portion for the horizontal spring and a horizontal spring. It is characterized by comprising a horizontal spring string-like member that is hung on a pulley and has the other end attached to the surrounding structure side.
In the present invention, the third balance mechanism is attached to a weight supported so as to be movable up and down on the surrounding structure side, a weight pulley attached to an upper end of the weight, and attached to the surrounding structure side. A weight pulley, one end connected to the upper end side of the shutter, a middle portion hooked on the weight pulley and the weight pulley, and the other end attached to the surrounding structure side It is characterized by comprising a member.
Further, the present invention provides a downward biasing force adding means adjacent to the weight raising / lowering guide path, and automatically connects when the weight is lowered to a predetermined position, and adds a downward biasing force of the weight. And the weight and the downward biasing force adding means are automatically released when reaching a predetermined position.
Further, the present invention is characterized in that an electric drive unit is provided on the ceiling, the drive unit is linked to the upper end side of the shutter, and the opening and closing operation of the shutter is performed by the drive unit. .
In the present invention, a leaf spring take-up shaft is linked to the output side of the drive unit, and a leaf spring is wound around the leaf spring take-up shaft and locked to the take-up shaft. It is connected to the upper end side of the shutter.
Further, the present invention is characterized in that a decorative material is provided on the surface of the shutter plate of the shutter.
Further, the present invention is characterized in that the decorative material is made of a tile material such as wood, stone, acrylic, vinyl chloride, or other resin, and the tile material is attached to the surface of the shutter plate.
In the present invention, the shutter horizontal support mechanism is configured by a large beam composed of a plurality of square pipes installed on the ceiling portion, and the large beam is disposed in parallel with the bottom surface portion to form a shutter support plane. It is formed and a brace is provided on each of the large beams by an elongated steel material.
In the present invention, the girder is arranged in parallel on the ceiling so that the longitudinal direction thereof is perpendicular to the moving direction of the horizontal portion of the shutter, and at least one of the girders is converted into the shutter direction. It arrange | positions in the vicinity of the guide means.
According to the present invention, the square pipe includes a side wall, an upper wall formed at a right angle to the side wall, and a lower wall formed at a right angle to the side wall. And an elongated member made of steel or stainless steel is disposed on the inner side surface of the side wall, both ends of the elongated member are fixed to the main body of the square pipe, and an intermediate portion of the elongated member is It is characterized in that the upper wall or the lower wall is angled and fixed against the tension, and the bracing structure is constituted by the elongated members.
Further, the present invention is configured so that an envelope structure having an opening, a ceiling portion, and a bottom surface portion and a belt-like shutter plate that is long in the horizontal direction with respect to the bottom surface portion are rotatably connected to each other, and can be bent as a whole. A shutter, a shutter vertical guide mechanism for guiding the shutter in the vertical direction along the opening, and a shutter horizontal support provided on the ceiling for supporting the shutter slidably horizontally with respect to the bottom surface. A shutter plate for the shutter, comprising: a mechanism; shutter direction conversion guide means for changing the moving direction of the shutter by 90 degrees; and a balance mechanism for urging the vertical portion of the shutter in the upward direction against its weight. It is characterized by providing a cosmetic material on the surface.
In the present invention, the balance mechanism may be disposed vertically along the opening, and a hook that is detachably engaged with the lower end side of the shutter, and a pair of vertically arranged on both sides of the opening, A vertical spring comprising a coil spring having a lower end attached to the bottom surface, a vertical spring moving pulley attached to the upper end of the vertical spring, a vertical spring fixed pulley attached to the surrounding structure, and one end Is connected to the first hook, a middle part is hung on the vertical spring fixed pulley and the vertical spring movable pulley, and the other end is attached to the outer structure 2 side of the string member for vertical spring. It is characterized by comprising.
Further, the present invention provides a string-like member for connecting the balance mechanism to the upper end side of the shutter, a weight supported so as to be movable up and down on the outer structure side, and a weight pulley attached to the upper end of the weight. A weight pulley attached to the outer structure side, one end connected to the upper end side of the shutter, an intermediate portion hooked on the weight pulley and the weight pulley, and the other end of the outer pulley. It is composed of a weight-like string member attached to the structure side.

  In the horizontal pulling shutter mechanism according to the present invention, the vertical weight of the shutter can be offset to almost zero at an arbitrary opening / closing position by the biasing force of the balance mechanism. Therefore, even if a decorative material is provided on the surface of the shutter to increase the weight of the shutter, the shutter can be operated in the opening and closing direction with a light operating force. Moreover, since the shutters do not overlap when the shutter is opened and closed, the decorative material on the surface is not damaged, and the design of the shutter surface can be gorgeously decorated.

It is whole sectional explanatory drawing of a horizontal pull shutter mechanism. It is whole sectional explanatory drawing of a horizontal pull shutter mechanism. It is a horizontal drawing shutter mechanism plane explanatory drawing. It is a horizontal drawing shutter mechanism plane explanatory drawing. It is vertical section explanatory drawing of a weight additional load apparatus. It is a plane explanatory drawing same as the above. It is sectional explanatory drawing of a large beam. It is a cross-sectional explanatory drawing of a shutter. It is explanatory drawing of this invention.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an overall sectional view of a horizontal pulling shutter mechanism according to the present invention. An opening 6 that is opened and closed by a shutter 4 is formed in the surrounding structure 2 such as a garage and warehouse, that is, a building drive, and straddles the left and right sides of the opening 6 and the ceiling 8 of the surrounding structure 2. A shutter rail 10 is provided on the surrounding structure 2. The shutter rail 10 includes a vertical guide portion 10a, a curved guide portion 10b, and a horizontal guide portion 10c.

A rotating pulley 12 for guiding the shutter 4 in the 90-degree bending direction is disposed on the curved portion 10b of the shutter rail 10, and the pulley 12 is rotatably supported on the surrounding structure 2 side. The surface of the pulley 12 and the bending guide portion 10b of the shutter rail 10 constitute a shutter direction conversion guide means. As shown in FIG. 4, a shutter plate receiving large beam 14 made of a square pipe is provided in the vicinity of the top of the rotary pulley 12, the back position of the ceiling portion 8 of the surrounding structure 2, and the intermediate portion thereof. A plurality of beams are arranged horizontally with respect to the bottom surface 2a of 2 and perpendicular to the traveling direction of the shutter 4 in the horizontal direction, and each large beam 14 is supported on the surrounding structure 2 side.

The large beams 14 are arranged in parallel to each other on the same plane with a predetermined distance from each other, with the upper walls 14c facing upward. Shutter plate receiving beams 16 made of square pipes are arranged in parallel with each other at a predetermined interval on the same plane in contact with the upper surface of the large beam 14 and fixed to the large beam 14. Has been. As shown in FIG. 7, the main beam 14 has a main body 14a made of a steel square pipe, has a rectangular cross section, has a side wall 14b, and an upper wall 14c and a lower wall 14d perpendicular to the side wall 14b. ing. Bolt brackets 20 and 22 are fixed to both ends of the upper wall 14c of the main body 14a.

A bolt 24 (elongated member) made of steel or stainless steel having a head on one side is passed from one bolt receiving bracket 20, and the other of the steel / stainless steel rod 24 is screwed to the other bolt receiving bracket 22. Both ends of the elongated member 24 are connected between the bolt receiving brackets 20 and 22 by screwing into the holes and tightening nuts on the other threaded portions of the elongated member 24. A ring portion of a round tube bolt 26 is inserted and disposed in the middle portion of the elongated member 24, and a thread portion of the round tube bolt 26 is inserted into a hole formed in the lower wall 14d of the main beam body. . A nut 27 is screwed into a portion of the round tube bolt 26 protruding from the hole in the lower wall 14d.

By tightening the nut screwed into the elongated member 24, the middle portion of the elongated member 24 is drawn toward the lower wall 14d of the main beam body 14a to form an angle with the lower wall 14d. 24 constitutes a brace as shown by a dotted line in FIG. The configuration of the bracing is not particularly limited to the illustrated configuration, and a configuration in which an elongated member is stretched in a zigzag shape or other configurations can be employed. The large beam 14 and the small beam 16 constitute a shutter horizontal support mechanism, and the arrangement plane of the small beams 16 constitutes a shutter horizontal support surface 18. A pair of hook roller rails 28 on the left and right are horizontally disposed on the shutter horizontal support surface 18 in the ceiling portion 8 that is a space between the shutter horizontal support mechanism and the ceiling 2 b of the surrounding structure 2. In addition, the rails 28 and 28 are arranged on the shutter horizontal support surface 18 in parallel in the direction along the travel path of the shutter 4 with a predetermined interval therebetween, and the rails 28 and 28 are supported on the surrounding structure 2 side. .

The rails 28 and 28 are respectively provided with rollers 32 and 34 rotatably attached to the hooks 30 so as to run along the rail surfaces of the rails 28 and 28. The hooks 30 are hook rollers 32 and 34, respectively. The rails 28 and 28 are supported so as to be movable along the longitudinal direction. As shown in FIG. 8, the shutter 4 has a large number of belt-like shutter slats 4a (shutter plates) rotatably connected via an inner mold connecting part 4b and an outer mold connecting part 4c, and a tree is attached to the surface of each shutter slat 4a. Further, a decorative material 4d such as synthetic resin, stone, or metal is attached. Wheels 4e are rotatably supported on both sides of each shutter slat 4a. A seat plate 4 f extending in the horizontal direction is connected to the lower end of the shutter 4 with respect to the bottom surface portion 2 a of the surrounding structure 2.

The shutter 4 is configured such that the wheels 4e on both sides thereof are guided along the vertical guide portion 10a, the bent guide portion 10b, and the horizontal guide portion 10c of the shutter rail 10. The provision of the wheel 4e is not an essential requirement, and the shutter 4 is configured such that both sides thereof are guided along the vertical guide portion 10a, the bent guide portion 10b, and the horizontal guide portion 10c of the shutter rail 10. May be. An elevating hook 36 is supported on the vertical guide portion 10a so as to be movable up and down, and the elevating hook 36 is configured to be detachably engaged with hooks on both sides of the lower end of the shutter 4. 38 and 40 are bearings provided at the upper rear of the surrounding structure 2, and a leaf spring winding shaft 42 is rotatably supported by the bearings. A motor 44 is fixed to the bearing 40, and the rotation of the output shaft of the motor 44 is transmitted to the leaf spring take-up shaft 42 through a manual release clutch and a power failure locking device. Yes.

A leaf spring 48 is wound around the leaf spring take-up shaft 42, one end side of the leaf spring 48 is locked to the leaf spring take-up shaft 42, and the other end side is an upper end portion 4 g of the shutter 4. It is linked to. Vertical springs 50 and 52 each consisting of a pair of coil springs are vertically arranged on both sides of the opening 6, and the lower ends of the vertical springs 50 and 52 are connected to the bottom surface 2 a side of the surrounding structure 2. is doing. Moving pulleys 54 and 56 are rotatably attached to the upper ends of the vertical springs 50 and 52, respectively. One end of each of the string-like members 58 and 60 made of wire laid on the movable pulleys 54 and 56 is attached to the outer structure 2 side via a metal fitting, and the other end is attached to the outer structure 2 side. The lift hook 36 is connected via fixed pulleys 62 and 64 that are rotatably supported by the shaft. The vertical springs 50 and 52, the movable pulleys 54 and 56, the fixed pulleys 62 and 64, the elevating hook 36, and the string-like members 58 and 60 urge the shutter 4 upward, along the shutter rail 10 of the shutter 4. This constitutes a balance mechanism that cancels out the falling force.

Reference numerals 66 and 68 denote weight raising / lowering guides arranged on both sides on the rear side of the shutter rail 10, and a balance weight 70 is arranged on each of them via a roller 71 so as to be movable up and down. A string-like member 74 made of a wire is hung on the movable pulley 72 connected to the upper part of the balance weight 70 via a wire, and one end of the string-like member 74 is connected to the surrounding structure 2 side via a fixing bracket 76. The other end of the string-like member 74 is connected to the upper end 4g of the shutter 4 via a fixed pulley 78 rotatably attached to the surrounding structure 2 side. As shown in FIG. 5, a guide rail 80 is provided adjacent to the lifting guide 68, and a roller hook case 82 is supported on the guide rail 80 so as to be lifted and lowered. An additional load spring 84 composed of a coil spring is disposed below the lifting path of the roller hook case 82, the lower end of which is attached to the bottom surface 2 a side, and the upper end is connected to the lower end of the roller hook case 82. is doing.

Protrusions 86 and 88 are provided on the weight 70 side and the guide rail 80 side, respectively, so that the positions thereof can be adjusted, and grooves 94 and 96 for engaging the roller hooks 90 and 92 are provided on the projections 86 and 88, respectively. Is provided. An arm 98 is rotatably supported on the roller hook case 82 by a shaft 100, and the roller hooks 90 and 92 and the roller 104 are attached to the arm 98 in three positions. The arm 98 is biased clockwise by a spring 106 around the shaft 100 in FIG. In FIG. 5, reference numeral 108 denotes a stopper provided on the guide rail 80 for defining the rising limit position of the roller hook case 82.

In a state where the weight 70 is raised to a predetermined position, the roller hook case 82 is at a predetermined raised position against the elasticity of the additional load spring 84, and at this position, the roller hook 92 is placed in the groove 96 and the spring 106. The roller hook case 82 is locked at a predetermined ascending standby position by elastic insertion. When the weight 70 is lowered and the bottom surface of the protrusion 86 presses the roller 104, the arm 98 swings counterclockwise in FIG. By this swinging, the roller hook 92 is detached from the groove 96, and the locked state of the roller hook case 82 is released. At the same time, the roller hook 90 is fitted into the groove 94, and the weight 70 and the roller hook case 82 are coupled via the roller hook 90. By this connection, the tensile force of the additional load spring 84 acts on the weight 70, and the weight 70 is pulled downward by the additional load spring 84.

On the other hand, when the weight 70 rises from the lowered position in this connected state, the roller hook case 82 rises in conjunction with the weight 70, and the additional load spring 84 expands as the roller hook case 82 rises. Thereby, the energy of the downward biasing force by the additional load spring 84 with respect to the roller hook case 82 is accumulated. When the roller hook case 82 rises along the guide rail 80 to a predetermined rising standby position and the roller hook 92 reaches the groove 96, the roller hook 92 is fitted into the groove 96 by the elasticity of the spring 106, and the roller hook case 82 is inserted. Is locked to the guide rail 80 side, and the roller hook 90 is disengaged from the groove 94, and the connection between the weight 70 and the roller hook case 82 is released. The weight 70 released from the coupling with the roller hook case 82 is further lifted along the lifting guides 66 and 68 as the shutter 4 is lowered.

The tension of the spring 106 is set to be larger than the tension of the additional load spring 84, and the tension force of the additional load spring 84 prevents the roller hook 92 from being detached from the groove 96 in the ascending standby position. The biasing force by the weight 70 compensates for the damping of the biasing force by the vertical springs 50, 52, and the biasing force of the additional load spring 84 is the vertical spring 50, when the lower end of the shutter 4 is detached from the lifting / lowering hook 36. Compensate for the disappearance of the force from 52. The vertical gravity of the shutter 4 in the shutter closing direction is canceled by the interaction between the balance mechanism having the vertical springs 50 and 52 and the balance mechanism having the weight 70. Above the hook roller rail 28, a horizontal spring 110 made of a coil spring is disposed horizontally with respect to the hook roller rail 28.

One end of the horizontal spring 110 is connected to the surrounding structure 2 side via a fixing bracket 112, and a movable pulley 114 is rotatably connected to the other end. One end of a string-like member 116 made of a wire hung on the movable pulley 114 is attached to the outer structure 2 side via a fixing bracket 118, and the other end of the string-like member 116 rotates to the outer structure 2 side. It is connected to the hook 30 via a fixed pulley 120 that is supported freely. The hook 30 is configured to be detachably engaged with a hook on the upper end 4 g side of the shutter 4.
In FIG. 1, 122 is a leaf spring looseness detector, and 124 is a shutter auto-lock mechanism. Next, the operation of this embodiment will be described.
The present invention can be used as an electric type or a manual type. When using as a manual type, motorized drive parts, such as the motor 44, the leaf | plate spring winding shaft 42, and the leaf | plate spring 48, are deleted. The operation of the manual embodiment will be described below.

FIG. 1 shows a state in which the shutter 4 closes the opening 6, and FIG. 2 shows a state in which the lower end of the shutter 4 is raised and the upper end 4g is moved in the horizontal direction so that the opening 6 is opened. Yes. In this open state, the back surface of the shutter 4 is supported by a shutter horizontal support surface 18 formed of a small beam 16 via the outer connecting portion 4c. In the state where the shutter 4 is pulled up to the end stop position in the horizontal direction, the final gravity of the shutter 4 is higher than the lowered gravity, and the gravity is higher. Therefore, it is not necessary to lock the shutter 4 with the auto-lock mechanism 124 when the shutter 4 is opened. In this state, the lower end of the shutter 4 is separated from the lifting hook 36 upward by a predetermined distance. In the maximum shutter lift state, the shutter 4 is urged rightward in FIG. 2 by the tensile force of the horizontal spring 110 via the hook 30. The urging force of the horizontal spring 110 acts in a direction to cancel the frictional load on the horizontal support surface 18 of the shutter in the horizontal portion of the shutter 4.

  When the shutter 4 is pushed down manually in the vertical direction from the open position by using the handle, the shutter 4 is bent in the vertical direction guided by the rotary pulley 12 from the horizontal state in the descending process, and is guided in the vertical direction, and the lower end is raised and lowered. Engage with the hook 36. When the shutter 4 is lowered by a predetermined amount along the vertical guide portion 10a of the shutter rail 10, the gravity of the vertical portion of the shutter 4 increases due to the weight of the shutter 4. This increase in gravity is offset by the upward biasing force of the lifting hook 36 that is pushed down along the vertical guide portion 10 a as the shutter 4 is lowered and the gravity of the weight 70. When the shutter 4 is lifted by holding the handle of the shutter 4 from the state in which the opening 4 closes the shutter 4, the shutter 4 is guided by the pulley 12 and guided horizontally to the left in FIG.

When the upper end 4g of the shutter 4 moves leftward in FIG. 1, it engages with the roller hook 30, the roller hook 30 moves leftward, the horizontal spring 110 expands, and the upper end 4g of the shutter 4 moves rightward. Increases the energy energized. When the lower end of the shutter 4 approaches the highest position, the lower end of the shutter 4 is separated from the lifting hook 36 and the shutter 4 is released from the upward biasing force from the lifting hook 36. At this time, the weight 70 and the roller hook case 82 are combined, and the locking of the roller hook case 82 is released. Accordingly, the horizontal portion of the shutter 4 is urged leftward in FIG. 2 by the urging force of the weight 70 and the additional load spring 84. The urging force of the vertical springs 50 and 52, the horizontal spring 110, the weight 70, and the additional load spring 84 cancels the gravity of the shutter 4, and the operator can move the shutter 4 to an arbitrary opening / closing position with a light force. it can.

Next, the operation of the embodiment in the case where the drive unit is used as an electric type will be described.
When used as an electric type, the urging force of each balance mechanism is adjusted in advance, and the horizontal portion of the shutter 4 moves rightward in FIG. The state is slightly biased in the direction. In this state, when the motor 44 by the push button is turned on and the motor 44 is driven in the shutter lowering direction, the leaf spring winding shaft 42 rotates in a predetermined direction, the leaf spring 48 is pulled out from the winding shaft 42, and the shutter 4 is Then, it moves in the downward direction with the pulley 12 as a boundary.

Further, when the motor 44 is driven in the upward direction with the shutter 4 closed, the clutch, the auto-lock mechanism 124 and the electromagnetic brake are simultaneously released, and the shutter 4 moves in the upward direction. If the motor 44 is stopped by the push button and turned off, the output shaft of the motor 44 is locked. Further, the output shaft of the motor 44 is set to be locked even during a power failure. Further, the emergency stop button can be used to stop the motor 44 urgently. When the motor 44 is urgently stopped, the shutter 4 is held at the stop position. When the electric drive unit breaks down with the shutter 4 closed, the auto-lock mechanism 124 is unlocked from the outside, the shutter 4 is pushed up by operating the handle, and enters the surrounding structure 2. The shutter 4 is lowered and the opening 6 is closed.

When the electric drive unit fails, as shown in FIG. 9, the leaf spring 48 is bent as the shutter 4 is manually moved, and the shutter 4 can be raised manually. Next, the clutch of the electric drive unit is manually released, the handle is inserted, and the clutch shaft is rotated to wind up. When stopping the shutter 4 halfway, it is stopped when the clutch is manually inserted and the handle is released. The clutch shaft and the motor 44 are connected by a chain and interlocked with the winding shaft 42. The electromagnetic brake of the motor 44 is released during a power failure. Since the clutch is operated at the time of a power failure, the shutter 4 will not fall even if a power failure occurs while the shutter 4 is raised. Since other operations of the present embodiment are the same as the operations of the manual embodiment, the description thereof is omitted. In this embodiment, since the large beam 14 has a special bracing structure as described above, a shutter horizontal support surface having high strength can be formed with a thin beam material. In addition, by arranging the large beam 14 in the vicinity of the rotary pulley 12 so that the shutter horizontal support surface faces, and reducing the load of the shutter 4 on the rotary pulley 12, the rotary pulley 12 can be reduced in size and weight. In addition, by reducing the size and weight of the shutter vertical weight support structure, the space between the ceiling 8 of the outer structure 2, that is, the lower end of the shutter horizontal support mechanism and the ceiling 2 b can be set to an extremely thin 100 mm. As a result, the height of the opening 6 can be increased.

2 Enclosing structure 2a Bottom face part 4 Shutter 6 Opening part 8 Ceiling part 10 Shutter rail 12 Rotating pulley 14 Large beam 16 Small beam 18 Shutter horizontal support surface 20 Bolt receiving bracket 22 Bolt receiving bracket 24 Bar (elongated member)
26 Round tube bolt 28 Hook roller rail 30 Hook 32 Hook roller 34 Hook roller 36 Lifting hook 38 Bearing 40 Bearing 42 Leaf spring take-up shaft 44 Motor 48 Leaf spring 50 Vertical spring 52 Vertical spring 54 Dynamic pulley 56 Dynamic pulley 58 String member 60 String-shaped member 62 Fixed pulley 64 Fixed pulley 66 Weight lifting guide 68 Weight lifting guide 70 Balance weight 72 Moving pulley 74 String-shaped member 76 Fixing bracket 78 Fixed pulley 80 Guide rail 82 Roller hook case 84 Additional load spring 86 Projection body 88 Projection Body 90 Roller hook 92 Roller hook 94 Groove 96 Groove 98 Arm 100 Shaft 102 Roller hook 104 Roller 106 Spring 108 Stopper 110 Horizontal spring 112 Fixing bracket 114 Moving pulley 116 String member 118 Fixing bracket 120 Fixed pulley 122 Detector 124 Auto-lock mechanism

Claims (15)

An envelope structure having an opening, a ceiling, and a bottom surface; and a shutter that is configured to be freely bent as a whole, in which a belt-like shutter plate that is long in the horizontal direction with respect to the bottom surface is rotatably connected to each other; A shutter vertical guide mechanism for guiding the shutter in the vertical direction along the opening, a shutter horizontal support mechanism provided on the ceiling portion for supporting the shutter slidably horizontally with respect to the bottom surface portion, and the shutter Shutter direction conversion guide means for changing the movement direction of the shutter 90 degrees, a first hook that is arranged to be movable up and down along the opening, and is detachably engaged with the lower end side of the shutter, and the first hook Parallel to the shutter guide direction on the shutter horizontal support surface of the shutter horizontal support mechanism. A second hook that is movably disposed and detachably engages with the upper end side of the shutter; and a second balance mechanism that biases the second hook toward the front of the shutter horizontal support surface; A string-like member connected to an upper end side of the shutter; and a third balance mechanism that applies an urging force to the string-like member in a direction in which the shutter is pulled onto the shutter horizontal support surface. The drop force caused by the above is canceled by the biasing force of the first balance mechanism and the third balance mechanism, and the horizontal portion of the shutter is biased in the shutter closing direction by the second balance mechanism. Features a horizontal shutter mechanism. A pair of the first balance mechanisms arranged vertically on both sides of the opening, each of which has a lower end attached to the bottom part, and a vertical spring attached to the upper end of the vertical spring. And a vertical spring fixed pulley attached to the outer structure side, one end connected to the first hook, and an intermediate portion hooked on the vertical spring fixed pulley and the vertical spring dynamic pulley. The horizontal pulling shutter mechanism according to claim 1, wherein the other end is constituted by a string member for a vertical spring attached to the surrounding structure 2 side. The second balance mechanism is disposed horizontally on the ceiling, and has a horizontal spring composed of a coil spring with one end attached to the surrounding structure, and a horizontal spring attached to the other end of the horizontal spring. A movable pulley, a horizontal spring fixed pulley attached to the surrounding structure side, one end connected to the second hook, and an intermediate portion hooked on the horizontal spring fixed pulley and the horizontal spring movable pulley, etc. The horizontal pulling shutter mechanism according to claim 1, wherein the horizontal pulling shutter mechanism is constituted by a string member for a horizontal spring, the end of which is attached to the outer structure side. The third balance mechanism includes a weight supported so as to be movable up and down to the outer structure side, a weight pulley attached to the upper end of the weight, and a weight fixed pulley attached to the outer structure side. And one end connected to the upper end side of the shutter, the middle part is constituted by the weight fixed pulley and the weight pulley, and the other end is constituted by a weight string member attached to the outer structure side. The horizontal shutter mechanism according to claim 1. A downward biasing force adding means is provided adjacent to the weight raising / lowering guide path, and when the weight is lowered to a predetermined position, it is automatically connected, the downward biasing force of the weight is added, the weight is raised, 5. The horizontal pulling shutter mechanism according to claim 4, wherein when the position is reached, the connection between the weight and the downward biasing force adding means is automatically released. The electric drive unit is provided in the ceiling part, the drive unit is linked to the upper end side of the shutter, and the shutter is opened and closed by the drive unit. Horizontal pull shutter mechanism. A leaf spring take-up shaft is linked to the output side of the drive unit, a plate spring is wound around the plate spring take-up shaft and locked to the take-up shaft, and the unwinding side of the plate spring is connected to the upper end side of the shutter. The horizontal pulling shutter mechanism according to claim 6, wherein the horizontal pulling shutter mechanism is connected. The horizontal shutter mechanism according to claim 1, wherein a decorative material is provided on a surface of a shutter plate of the shutter. The horizontal pulling shutter according to claim 8, wherein the decorative material is made of a tile material such as wood, stone, acrylic, polyvinyl chloride, or other resin, and the tile material is attached to a surface of a shutter plate. mechanism. The shutter horizontal support mechanism is constituted by a large beam composed of a plurality of square pipes erected on the ceiling portion, and each large beam is arranged in parallel to the bottom surface portion to form a shutter support plane, The horizontal pulling shutter mechanism according to claim 1, wherein a bracing is provided on the girder by an elongated steel material. The girder is arranged in parallel on the ceiling so that the longitudinal direction thereof is perpendicular to the moving direction of the horizontal portion of the shutter, and at least one of the girder is in the vicinity of the shutter direction conversion guide means. The horizontal shutter mechanism according to claim 10, wherein the horizontal shutter mechanism is arranged. The square pipe includes a body having a side wall, an upper wall formed at right angles to the side wall, and a lower wall formed at right angles to the side wall. An elongated member made of steel or stainless steel is disposed on the inner side of the wall, and both ends of the elongated member are fixed to the main body of the square pipe, and the middle portion of the elongated member resists the tension. The horizontal pulling shutter mechanism according to claim 11, wherein an angle is formed on and fixed to the upper wall or the lower wall, and the bracing structure is configured by the elongated member. An envelope structure having an opening, a ceiling, and a bottom surface; and a shutter that is configured to be freely bent as a whole, in which a belt-like shutter plate that is long in the horizontal direction with respect to the bottom surface is rotatably connected to each other; A shutter vertical guide mechanism for guiding the shutter in the vertical direction along the opening, a shutter horizontal support mechanism provided on the ceiling portion for supporting the shutter slidably horizontally with respect to the bottom surface portion, and the shutter And a balance mechanism that urges the vertical portion of the shutter in the upward direction against its weight, and a decorative material is provided on the surface of the shutter plate of the shutter. Horizontal shutter mechanism characterized by providing The balance mechanism is disposed so as to be movable up and down along the opening, and is hooked to be detachably engaged with a lower end side of the shutter, and a pair of lower ends are disposed on both sides of the opening. A vertical spring comprising a coil spring attached to the vertical spring, a vertical spring moving pulley attached to an upper end of the vertical spring, a vertical spring constant pulley attached to the surrounding structure, and one end of the first spring It is connected to a hook, and an intermediate part is constituted by the vertical spring fixed pulley and the vertical spring movable pulley, and the other end is constituted by a vertical spring string-like member attached to the surrounding structure 2 side. The horizontal pulling shutter mechanism according to claim 13. A string-like member for connecting the balance mechanism to the upper end side of the shutter, a weight supported so as to be movable up and down on the outer structure side, a weight pulley attached to the upper end of the weight, and the outer enclosure A weight pulley attached to the structure side, one end is connected to the upper end side of the shutter, an intermediate portion is hung on the weight pulley and the weight pulley, and the other end is attached to the outer structure side. 114. The horizontal pulling shutter mechanism according to claim 113, further comprising a weight string member.

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