JP2007217881A - Shutter device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter device capable of easily opening a shutter curtain, by reducing a burden of a worker. <P>SOLUTION: Shaft boxes 11, 12 and 14 are connected to a driving shaft 6 connected to a winding shaft 4 of the shutter curtain 3. The shaft boxes are arranged in a direction changing part of a torque transmission passage. The shaft boxes have an input shaft and an output shaft. Flexible rods 27, 28 and 29 are arranged in at least a part of the torque transmission passage connected to the input shaft and the output shaft. The shaft box 14 of the tail end is positioned by avoiding an elevated spot. The input shaft of the shaft box of the tail end has an input end shaft which can be connected with a portable drill. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a large shutter device provided to close an opening as an entrance / exit of a public facility such as a department store, a large superstore, a station, or a fire prevention compartment.

  In a large shutter device, an opening / closing device having an electric motor is provided, and opening / closing is performed by the opening / closing device.

  In the shutter device, a shutter case is provided above the entrance and the opening, and the shutter curtain is wound and housed in the shutter case, and the shutter curtain is wound by rotating the winding shaft by a switch. It is like.

  In such a shutter device, when an emergency such as a power failure, maintenance work, or malfunction of an electrical system, the shutter curtain is opened and closed, particularly when the shutter curtain is opened and closed. Then, by rotating the drive shaft of the switch directly with the handle attached to the switch or rotating the drive shaft of the switch by rotating a chain connected to the drive shaft, the winding shaft Was rotating to wind up the shutter curtain.

  In a large shutter device, the shutter case is installed at a high place, and in order to rotate the handle and the chain, a ladder, a stepladder, etc. are necessary, which is not only workable but also dangerous. It was not an easy task.

  Further, many large shutter devices have a wide opening opening, a high opening height, and a large shutter curtain, and the number of installations has increased with the increase in size of buildings. Further, since the take-up shaft is rotated via the speed reducer, it takes a lot of labor and much time to wind up the shutter curtain.

  Note that Patent Document 1 discloses a shutter winding device for opening a shutter curtain with a shutter that does not include a winding device. However, for opening, a shutter winding device must be prepared separately. Emergency response is difficult. Further, when power supply to the hoisting device cannot be obtained due to a power failure or the like, it has been difficult to use.

Japanese Utility Model Publication No. 6-10596

  In view of such a situation, the present invention provides a shutter device that can reduce the burden on an operator and can easily open a shutter curtain.

  In the present invention, a shaft box is connected to a drive shaft connected to a winding shaft of a shutter curtain, the shaft box is provided in a direction changing portion of a torque transmission path, and the shaft box includes an input shaft and an output shaft. A flexible rod is provided in at least a part of the torque transmission path connected to the input shaft and the output shaft, the terminal shaft box is located avoiding a high place, and the input shaft of the terminal shaft box is portable The present invention relates to a shutter device having an input end shaft to which a drill can be connected, and also relates to a shutter device in which a handwheel handle can be fitted to the input end shaft, and the portable drill is driven by an external power source, The present invention relates to a shutter device in which an outlet for supplying external power is disposed in the vicinity of the terminal shaft box or in the vicinity of the terminal shaft box, and the portable drill has a built-in rechargeable battery, and the terminal shaft The rechargeable battery inside the box Relates to shutter apparatus charger for charging is provided, further or axle box of the termination is one of the shutter device is capable of housing the portable drill.

  According to the present invention, the shaft box is connected to the drive shaft connected to the winding shaft of the shutter curtain, the shaft box is provided in the direction changing portion of the torque transmission path, and the shaft box has the input shaft and the output shaft. A flexible rod is provided in at least a part of the torque transmission path connected to the input shaft and the output shaft, the terminal shaft box is located avoiding a high place, and the input shaft of the terminal shaft box is Since it has an input end shaft to which a portable drill can be connected, it can be opened by a portable drill, and there is no need for a scaffold such as a ladder or a stepladder, so that workability is good. When installing the present invention, it is difficult to accurately align the shutter device and the housing, the shaft box and the shutter device, and the shaft box. However, the flexible rod absorbs misalignment. Thus, the work load such as alignment is reduced, and smooth operation is possible.

  According to the present invention, since the handwheel handle can be fitted to the input end shaft, it is possible to cope with various working conditions.

  Further, according to the present invention, the portable drill is driven by an external power source, and the outlet for supplying the external power source is disposed in the vicinity of the terminal shaft box or in the vicinity of the terminal shaft box. A simple shutter curtain opening operation is possible in an environment where the power supply can be used.

  According to the present invention, the portable drill has a rechargeable battery built in, and a charger for charging the rechargeable battery is provided in the terminal axle box. However, a simple shutter curtain opening operation is possible.

  Further, according to the present invention, since the terminal box can store the portable drill, it is not necessary to procure the portable drill even in an emergency, and a simple shutter curtain opening operation can be performed. Exhibits excellent effects.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes a shutter case, 2 denotes a guide rail, 3 denotes a shutter curtain, and the shutter case 1 is provided with a winding shaft 4 rotatably and an opening / closing device 5. A drive shaft (not shown) projecting from one end of 5 and the take-up shaft 4 are connected by a chain (not shown) or the like, and the take-up shaft 4 is rotated by the drive of the opening / closing device 5, and the shutter. The curtain 3 is wound on or taken out from the winding shaft 4 and moves up and down (opens and closes) along the guide rail 2.

  An auxiliary drive shaft 6 projects from the other end of the opening / closing machine 5, and the auxiliary drive shaft 6 and the drive shaft (not shown) are connected by a one-way clutch 7. The auxiliary drive shaft 6 and the drive shaft are connected in a non-energized state of the opening / closing machine 5, and the rotational force from the auxiliary drive shaft 6 is the opening direction of the drive shaft (the rotation direction in which the shutter curtain 3 is opened). ) Only to be transmitted. The opening / closing machine 5 is provided with a speed reducer (not shown), and the rotation of the auxiliary drive shaft 6 is decelerated via the speed reducer (not shown) of the opening / closing machine 5. Since the shutter curtain 3 can be opened even if the auxiliary drive shaft 6 is rotated with a relatively small force, the drive of a general portable electric drill 39 is driven as described later. The shutter curtain 3 can be opened with force.

  The auxiliary driving shaft 6 is provided with an auxiliary opening / closing device 8. Hereinafter, the auxiliary opening / closing device 8 will be described with reference to FIGS.

  The opening / closing machine 5 is provided on a bracket 9 of the shutter case 1. The shutter case 1 is provided with a first axle box 11, a second axle box 12 is provided in the vicinity of the bracket 9 of the building 10, and the height of the housing of the opening 13 (see FIG. 1) of the building 10. A third axle box 14 is provided as a terminal axle box of the auxiliary opening / closing device 8 at a position avoiding this place. Here, the position avoiding the high place is a position at the lower side or in the middle of the opening 13 that can be reached directly from the floor or ground without using a ladder or a stepladder. As a preferable example, the height is about 1 m to 1.5 m from the floor surface or the ground, which is suitable for the hand work in the standing posture of the worker. Axle boxes such as the first axle box 11, the second axle box 12, the third axle box 14 and the like are provided in a direction changing portion in the torque transmission path. Or a flexible rod is used for a part.

  The first shaft box 11 is rotatably provided with a first output shaft 15 and a first input shaft 16 that are parallel to the axis of the switch 5, and the first output shaft 15 has a driven sprocket 17, Drive sprockets 18 are fitted on the first input shaft 16, and the drive sprocket 18 and the driven sprocket 17 are connected by a chain 19. The driven sprocket 17 and the driving sprocket 18 may be directly meshed as gears.

  The second shaft box 12 includes a second output shaft 21 and a second input shaft 22 that are orthogonal to each other, and a bevel gear unit 23 that connects the second output shaft 21 and the second input shaft 22. The axle box 14 includes a third output shaft 24 and a third input shaft 25 that are orthogonal to each other, and a bevel gear unit 26 that connects the third output shaft 24 and the third input shaft 25.

  The auxiliary drive shaft 6 and the first output shaft 15 are arranged on the same axis and are connected by a first flexible rod 27. The first input shaft 16 and the second output shaft 21 are arranged on the same axis and are connected by a second flexible rod 28. The second input shaft 22 and the third output shaft 24 are connected via a third flexible rod 29 and a rigid connecting rod 31.

  Each of the first flexible rod 27, the second flexible rod 28, and the third flexible rod 29 is flexible and can transmit torque, for example, a coil of metal wire is concentrically combined. And rod-like structure. The third flexible rod 29 and the connecting rod 31 may be a single third flexible rod 29. In addition, by using the connecting rod 31, it is possible to reduce runout during rotation when the third flexible rod 29 becomes longer.

  The third axle box 14 is partitioned into a bevel gear unit storage chamber 33 and an operation chamber 34 by a partition plate 32. The operation chamber 34 can be opened and closed by a lid 35, and the lid 35 can be locked by a key 36. It has become. An input end shaft 37 is connected to the third input shaft 25. The input end shaft 37 has a quadrangular or hexagonal cross-sectional shape and can be chucked with a portable drill. The shape of the input end shaft 37 preferably conforms to the standard of the head of the hexagon bolt. By matching the standard of the head of the hexagon bolt, a commercially available tool such as a wrench socket can be connected to the portable drill. And the third input shaft 25 can be simply rotated.

  When opening the shutter curtain 3 when the shutter 5 cannot be driven due to power failure, malfunction of the electrical system of the shutter device, maintenance, etc., a portable drill, preferably a portable battery powered by a rechargeable battery is used. The shutter curtain 3 is opened using a drill. The rechargeable battery is preferably a nickel metal hydride battery, a lithium ion battery, or the like, or may be a dry battery or a fuel cell. The portable drill may be a manual rotary type.

  The lid 35 of the third axle box 14 is opened, the tip of the portable drill is inserted into the input end shaft 37, and the input end shaft 37 is rotated by the portable drill.

  The input end shaft 37 is rotated through the connecting rod 31, the third flexible rod 29, the bevel gear unit 23, the second flexible rod 28, the driving sprocket 18, the chain 19, and the driven sprocket 17. The auxiliary drive shaft 6 is rotated by being transmitted to the first flexible rod 27. Since the auxiliary drive shaft 6 is connected to the drive shaft (not shown) when the switch 5 is not energized, the drive shaft is rotated and the shutter curtain 3 is raised.

  The first flexible rod 27, the second flexible rod 28, and the third flexible rod 29 are misaligned between the auxiliary drive shaft 6 and the first output shaft 15, and the first input shaft 16 and the second output. The rotation is smoothly transmitted by absorbing the misalignment with the shaft 21 and the misalignment between the second input shaft 22 and the third output shaft 24.

  In the large shutter device, the opening / closing device 5 is driven with a voltage of 200 VAC. In general, the AC200V power supply system is different from the AC100V power supply system, so it is rare for both power supplies to be out of power at the same time. Therefore, the AC200V power supply is out of power and the switch 5 is driven. Even if not, the shutter curtain 3 can be opened by driving a portable electric drill with an AC 100V external power source. In this case, the portable drill need not be rechargeable. In addition, an emergency power source may be provided in a factory, a large store, or a building. In this case, the portable drill can be used with the emergency power source. If the power supply system is different, the portable drill may be driven by a power source having the same voltage as the switch 5.

  Further, a handle that can be connected to the input end shaft 37 may be provided inside the third axle box 14, and the input end shaft 37 may be rotated by the handle.

  5 and 6 show the third axle box 38 in the second embodiment. The interior of the third axle box 38 is not partitioned and accommodates a portable electric drill 39 and a handwheel handle 40 described later. In FIGS. 5 and 6, the same components as those shown in FIGS. 1 to 4 are denoted by the same reference numerals.

  The casing 41 is provided with a fixed plate 42, and the bevel gear unit 26 is fixed to the fixed plate 42.

  The portable electric drill 39 is detachably attached to the fixing plate 42 through a fixing bracket 49, and the handwheel 40 is also detachably attached to the fixing plate 42.

  The portable electric drill 39 has a socket 43 attached to the output shaft, the socket 43 can be fitted to the distal end portion 25a of the third input shaft 25, and the handwheel handle 40 has the third input shaft. 25 base portions 25b can be fitted.

  The casing 41 is provided with a charger 44, and the charger 44 includes a charger main body 45 and a protection circuit 46, and the charger 44 has a cord tip extending from the portable electric drill 39. The plug 47 provided in the can be attached and detached. In the figure, reference numeral 48 denotes a rechargeable battery built in the portable electric drill 39.

  The rechargeable battery 48 is charged by the charger 44 in a normal state, and the protection circuit 46 has a function of interrupting energization to the charger 44 when the rechargeable battery 48 is charged. Then, overcharge and deterioration of the rechargeable battery 48 are prevented. The charger 44 charges the rechargeable battery 48 with an external power source.

  When power cannot be supplied to the switch 5 due to a power failure or the like, the lid 35 is opened, the fixing bracket 49 is removed, and the portable electric drill 39 is taken out. The portable electric drill 39 is charged by the charger 44 and can be used immediately.

  The socket 43 is inserted into the third input shaft 25, the third input shaft 25 is rotated by the portable electric drill 39, the auxiliary drive shaft 6 is rotated through the connecting rod 31 and the like, and the shutter curtain 3 is released.

  When the switch 5 is driven by an AC 200V power source, even when the AC 200V power source fails as described above, the AC 100V power source does not necessarily have a power failure. In an environment where an emergency power source is installed, the portable electric drill 39 may be driven by an AC 100V power source which is an external power source. In this case, an AC 100V outlet is provided instead of the charger 44, and when the portable electric drill 39 is used, the plug 47 is inserted into the outlet so that the AC 100V power is supplied. The outlet may be provided on the housing side.

  Further, when the portable electric drill 39 cannot be used, the handwheel handle 40 is detached from the fixed plate 42, fitted to the third input shaft 25, and manually rotated by turning the handwheel handle 40 manually. Opening by is also possible. The opening / closing machine 5 is provided with a speed reducer (not shown), and the rotational force of the third input shaft 25 is decelerated via the speed reducer of the opening / closing machine 5 and is applied to the winding shaft 4. Since the signal is transmitted, the shutter curtain can be opened even if the input shaft 25 is rotated with a relatively small force.

  Also, in the case where a manual winder is provided without a switch like a fire shutter, the auxiliary switch 8 is connected to the drive shaft of the manual winder to The invention can be implemented.

It is a front view which shows embodiment of this invention. It is a principal part enlarged front view in the same embodiment. It is the front part left view. It is a front part right view. It is a principal part front view which shows the 2nd Embodiment of this invention. It is an AA arrow line view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter case 3 Shutter curtain 5 Switch 6 Auxiliary drive shaft 7 One-way clutch 8 Auxiliary switch 11 First axle box 12 Second axle box 14 Third axle box 27 First flexible rod 28 Second flexible rod 29 Third flexible Rod 38 Third axle box 39 Portable electric drill 44 Charger

Claims (5)

  A shaft box is connected to a drive shaft connected to a winding shaft of the shutter curtain, the shaft box is provided in a direction changing portion of a torque transmission path, and the shaft box includes an input shaft and an output shaft, and the input shaft A flexible rod is provided in at least a part of the torque transmission path connected to the output shaft, the terminal shaft box is positioned to avoid a high place, and a portable drill can be connected to the input shaft of the terminal shaft box A shutter device comprising an input end shaft.   The shutter device according to claim 1, wherein a handwheel handle can be fitted to the input end shaft.   2. The shutter device according to claim 1, wherein the portable drill is driven by an external power source, and the outlet for supplying the external power source is disposed in the vicinity of the terminal shaft box or in the vicinity of the terminal shaft box.   The shutter device according to claim 1, wherein the portable drill incorporates a rechargeable battery, and a charger for charging the rechargeable battery is provided inside the terminal box.   The shutter device according to claim 3 or 4, wherein the terminal shaft box can accommodate the portable drill.

Images