JP4260657B2 - Detachment method and desorption jig for shutter switch - Google Patents

Description

  The present invention relates to a method for attaching / detaching a shutter opening / closing device and an attaching / detaching jig that allow an opening / closing device that is an opening / closing driving means for a shutter curtain to be easily attached / detached.

  In the conventional shutter device, as shown in Patent Document 1 and Patent Document 2 below, a shutter curtain winding shaft and a drive shaft of an opening / closing device that rotationally drives the shaft are arranged in parallel, both of which are chains or the like. Therefore, maintenance such as opening / closing of the opening / closing device was relatively easy.

  For example, in the shutter device disclosed in Patent Document 1 below, as shown in FIG. 8, the shaft sprocket 3 is rotatably supported on the bracket body 1 and is attached to the opening / closing device with a space from the shaft sprocket 3. The base 5 is attached by fixing means such as screws, bolts or welding. The opening / closing machine 7 is provided with an attachment piece 9, and the opening / closing machine 7 is attached to the opening / closing machine mounting base 5 via the attachment piece 9.

A motor sprocket 11 is integrally fitted on the output shaft of the switch 7, and the drive chain 13 is wound between the motor sprocket 11 and the shaft sprocket 3 to wind up the power of the switch 7. The shaft 15 is transmitted. In order to attach the opening / closing machine 7 to the bracket body 1, first, the drive chain 13 is wound around the shaft sprocket 3, and then the motor sprocket 11 of the opening / closing machine 7 is hooked on the driving chain 13 to the opening / closing machine mounting bracket 5. Fix it. Further, when the fixing of the opening / closing machine 7 and the opening / closing machine mounting bracket 5 was released and the motor sprocket 11 was removed from the drive chain 13, the opening / closing machine 7 could be easily detached from the bracket body 1.
JP 2000-2062 A JP-A-7-197757

  By the way, since the conventional shutter device performs winding while bringing the slats into contact with each other, there is a limit to speeding up in terms of noise and wear. In recent years, in order to solve such problems, a high-speed opening / closing type shutter device capable of quiet and high-speed winding has been developed. In this shutter device, slat end parts are attached to both ends in the longitudinal direction of the slat, the thickness of the slat end parts is set to be thicker than the thickness of the slats, and only the slat end parts at both ends are wound up when winding the shutter curtain. This enables high-speed winding and rewinding without contacting the slats and without causing wear or noise. In order to transmit high-speed rotational force silently, the switch has a worm wheel fixed to one end of the shaft, and a worm gear fixed to the motor drive shaft arranged in the direction perpendicular to the shaft. The worm wheel and worm gear The shaft shaft direct connection type structure is used. In this structure, the opening / closing machine rotationally drives one end of the shaft and carries the load of the shaft.

Therefore, in such a high-speed opening / closing type shutter device, when the opening / closing device is detached, the load applied to the opening / closing device from the shaft must be canceled. In this case, in order to cancel the load on the opening / closing machine, a method has been adopted in which the shutter curtain is entirely wound around the shaft and the shaft is lifted together with the shutter curtain by a crane or the like.
In this case, since the shutter curtain wound by the slat end parts is non-contact except at the two ends, the balance when suspended is poor, and a complicated work for suspending in balance is required. It was. Furthermore, in order to suspend the entire shaft around which the shutter curtain is wound, it is necessary to prepare a large crane, a chain block that needs to be supported on the housing side, etc. Had to spend.

  The present invention has been made in view of the above situation, and it is an object of the present invention to provide a shutter opening / closing method and an attaching / detaching jig that can be easily attached / detached.

  Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.

The method for attaching and detaching the shutter switch according to claim 1 of the present invention includes a shaft 39 for winding the shutter curtain, and a rotational drive that is attached to the movable plate 31 via a fastening means and carries one end 39a of the shaft 39. A shutter opening / closing device 43 is attached to and detached from the shaft 39 of the shutter device 21 having a shaft shaft direct connection type opening / closing device 43, and is attached to the end 39a of the shaft 39. Using the jig 100, the attaching / detaching jig 100 includes a retaining bracket 71, a swingable lifting rod 73 having one end rotatably supported by the retaining bracket 71, and the retaining bracket 71 and the lifting / lowering. Adjusting means 75 that is provided over the flange 73 and moves up and down the other end of the lifting rod 73, and the latch bracket 71 is provided on the side on which the movable plate 31 is provided. Locks hanging in a part of the frame 29, the lifting rod 73, the is arranged below the shaft 39, attached state of the driving device 43 and the movable plate 31 between the shutter curtain and the driving device 43 Is released, the other end of the lifting / lowering rod 73 is swung upward by operating the adjusting means 75 to carry the shaft 39 and cancel the load on the switch 43 , and then the switch 43 The shaft 39 is pulled out from one end 39a of the shaft 39 in the axial direction and is detached.

According to a second aspect of the present invention, the movable plate 31 can be configured to be movable inside the frame-shaped side frame 29.

In this method of attaching and detaching the shutter switch 43, it is not necessary to lift the shutter curtain part when canceling the load on the switch 43, and the heavy weight in which the shutter curtain is wound and the switch 43 is connected is heavy. The troublesome work for suspending and holding the entire shaft is not required, and the switch 43 can be easily attached and detached.
Further, in this method for attaching / detaching the shutter opening / closing device 43, it is not necessary to use heavy equipment such as a crane or a chain block that needs to be supported on the housing side, and the attaching / detaching jig 100 is set and the adjusting means 75 is operated. Thus, the heavy shaft 39 can be easily carried. As a part of the frame-shaped side frame 29, for example, if the upper frame 25 is provided, the upper bracket 25 is engaged with the retaining bracket 71 of the attaching / detaching jig 100, and the lifting rod 73 is attached to the shaft 39. It arrange | positions under the one end 39a. Then, by configuring the adjusting means 75 with a member such as a screw or a bolt, for example, by rotating the adjusting means 75, the upward / downward movement of the lifting / lowering rod 73 can be performed. Can be supported.

The attachment / detachment jig 100 for the shutter switch 43 according to claim 3 includes a frame-shaped side frame 29 fixed to the housing side, a movable plate 31 movably provided inside the side frame 29, and a shutter. The shutter device 21 includes a shaft 39 around which the curtain is wound, and a shaft shaft direct-coupled opening / closing device 43 that is attached to the movable plate 31 via fastening means and is driven to rotate while supporting one end 39a of the shaft 39. A detachable jig 100 for a shutter switch 43 for detaching the switch 43 from the shaft 39;
A retaining bracket 71 that is secured to a part of the side frame 29;
A lifting rod 73, one end of which is rotatably supported by the latching bracket 71 and the other end of which is swingable in the vertical direction;
Adjusting means 75 provided across the retaining bracket 71 and the elevating rod 73 and elevating the other end of the elevating rod 73;
It is characterized by comprising.

  In the attaching / detaching jig 100 of the shutter opening / closing device 43, the latching bracket 71 is latched on a part of the side frame 29, for example, the upper frame 25 constituting the side frame 29, and the lifting rod 73 is below the shaft 39. When the adjusting means 75 is operated in the disposed state, the other end of the elevating rod 73 is raised, and one end 39a of the heavy shaft 39 is carried on the side frame 29 via the attaching / detaching jig 100 according to the principle of the lever. As a result, the load on the entire shaft acting on the opening / closing machine 43 is canceled, and the opening / closing machine 43 can be detached. The adjusting means 75 can be constituted by, for example, a screw or a bolt, so that a so-called screw jack structure can be formed, that is, the elevating rod 73 can be raised and lowered by a rotating operation.

  According to the method for attaching and detaching the shutter switch according to the first aspect of the present invention, the mounting state of the movable plate and the switch is released, and the shaft between the shutter curtain and the switch is carried to the switch. After canceling the load, the switch is pulled out from one end of the shaft in the axial direction and removed, so there is no need to lift the shutter curtain part to cancel the load on the switch and the shutter curtain is wound. In addition, it is possible to eliminate the troublesome work for suspending and holding the entire heavy shaft to which the switch is connected. As a result, it is possible to easily attach and detach the opening / closing machine, and maintainability is improved.

  According to the method for attaching and detaching the shutter switch according to claim 2, the attachment / detachment jig is used to support the shaft, and the attachment / detachment jig is hooked on a part of the side frame, and the adjusting means is operated. Because the lifting / lowering rod can be lifted to support one end of the shaft, a heavy shaft can be easily supported without using heavy equipment such as cranes or chain blocks that need to be supported on the housing side. Further, it is possible to further simplify the operation of detaching the switch.

  According to the attaching / detaching jig for the shutter switch according to claim 3, a latching bracket that is latched on a part of the side frame, and a lifting rod that is rotatably supported at one end by the latching bracket; Since it is provided with an adjusting means that is provided over the lifting rod and the hanging bracket and lifts the other end of the lifting rod, the hanging bracket is hooked to the side frame, and the lifting rod is disposed below the shaft. Then, by operating the adjusting means, one end of the heavy shaft can be supported only by operating the adjusting means by the lever principle. As a result, it is not necessary to use a large crane heavy machine, a chain block, or the like, and the exchange work of the opening / closing machine becomes easy.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a method for attaching / detaching a shutter switch according to the present invention and an attaching / detaching jig will be described below in detail with reference to the drawings.
1 is a perspective view of a main part of a shutter device in which a detaching jig according to the present invention is used, FIG. 2 is a side view of the side frame shown in FIG. 1 viewed from the inside, and FIG. 4 and 4 are enlarged perspective views of the detaching jig shown in FIG.

  Prior to the description of the attaching / detaching method and attaching / detaching jig of the shutter switch according to the present embodiment, the basic configuration of the shutter device to which the present invention is applied will be described. As for shutter device 21, storage part 23 is fixed to a building frame which is not illustrated. Side frames 29 having an upper frame 25 and a lower frame 27 are provided on the left and right sides of the storage unit 23. A movable plate 31 is provided inside the side frame 29 so as to be movable in a substantially horizontal direction.

  Two pairs of rolling roller pairs 33 a and 33 b that roll on the upper surface of the lower frame 27 are spaced apart from each other in the longitudinal direction of the lower frame 27. Among these, for example, a coupling plate 35 is attached to the shaft of one pair of rolling roller pairs 33a, and a lower roller 37 that sandwiches the lower frame 27 with the rolling roller pair 33a is rotatable at the lower end of the coupling plate 35. Is attached. That is, the movable plate 31 is provided so as to be movable in the extending direction of the lower frame 27 while sandwiching the lower frame 27 from above and below by the rolling roller pair 33a and the lower roller 37.

  An opening / closing machine mounting base 41 is fixed to the movable plate 31, and an opening / closing machine 43 is attached to the opening / closing machine mounting base 41, and is screwed and fixed by, for example, a plurality of bolts. The opening / closing machine 43 has a motor 45, a worm gear (not shown) fixed to the drive shaft of the motor 45, and a worm wheel (not shown) meshing with the worm gear. A through hole 47 having a key groove for restricting relative rotation with the shaft neck 39 a is formed in the worm wheel, and the through hole 47 is exposed on both side surfaces of the opening / closing machine 43.

  Therefore, the opening / closing machine 43 is fixed to the opening / closing machine mounting base 41, and the shaft neck 39a is inserted into the through hole 47, so that the shaft 39 is supported by the movable plate 31 via the opening / closing machine 43. It is designed to be rotationally driven. The opening / closing machine 43 constitutes a shaft shaft direct connection type opening / closing machine in which the drive shaft of the motor 45 is arranged in the orthogonal direction with respect to the shaft neck 39a. In FIG. 1, reference numeral 49 denotes a pulley on which the belt 51 shown in FIG. 3 is hung, and the belt 51 is connected to a balance weight (not shown) that adjusts the speed when the shutter curtain is started or stopped.

  A small sprocket 53 shown in FIG. 3 is fixed to the shaft neck 39a. A large sprocket 55 is rotatably provided on the movable plate 31 below the small sprocket 53, and a chain 57 is stretched between the large sprocket 55 and the small sprocket 53. A moving sprocket 61 is fixed to a rotating shaft 59 that rotatably supports the large sprocket 55 on the movable plate 31. The movable plate 31 is provided with a driven sprocket 63 so as to be rotatable away from the moving sprocket. A moving chain 65 is stretched between the moving sprocket 61 and the driven sprocket 63, and a part of the moving chain 65 is fixed to the lower frame 27.

  Therefore, when the opening / closing machine 43 is driven and the shaft neck 39 a rotates, the large sprocket 55 rotates through the chain 57, and the moving sprocket 61 is rotated by the rotation of the large sprocket 55. As a result, the moving sprocket 61 moves while rolling on the moving chain 65 that is partially fixed, and the movable plate 31 is reciprocated in the extending direction of the lower frame 27 accordingly. .

  As described above, since the shutter device 21 is provided with the axis moving mechanism for moving the shaft 39, the shutter curtain is always lifted and lowered between the guide rails in a vertical state to enable high-speed opening and closing. Further, the winding plate 67 shown in FIG. 2 fixed to the shaft 39 winds up only the slat end parts (not shown) constituting the shutter curtain, and winds up the shutter curtain only at both the left and right edges. As a result, the slats do not touch each other, the contact sound at the time of opening and closing can be reduced, and a high-speed opening / closing operation in which the operation sound is suppressed is possible.

  In the shutter device 21 configured as described above, in order to detach the opening / closing device 43, first, the belt 51 is removed from the pulley 49, and the pulley 49 is pulled out from the shaft neck 39a. According to the present embodiment, the opening / closing machine 43 can be detached while the shutter curtain is attached to the shaft 39, but the shutter curtain may be removed from the shaft 39 as a matter of course.

Next, the screwing between the movable plate 31 and the opening / closing machine 43 is released. That is, the bolt that fixes the switch 43 and the switch mounting base 41 is removed.
Next, the chain 57 hung on the small sprocket 53 and the large sprocket 55 is removed.

Next, using a chain block or the like, the shaft (shaft neck 39a) between the shutter curtain and the opening / closing device 43 is carried to cancel the load on the opening / closing device 43.
Then, the opening / closing machine 43 is pulled out from the shaft neck 39a in the axial direction, and the attachment / detachment of the opening / closing machine 43 is completed.

  In this method of attaching and detaching the shutter switch 43, it is not necessary to lift the shutter curtain part when canceling the load on the switch 43, and the heavy weight in which the shutter curtain is wound and the switch 43 is connected is heavy. There is no need to suspend the entire shaft 39. Further, a complicated operation for suspending and holding the shutter curtain, which is difficult to be balanced and is wound by contacting only two portions at both ends with the slat end parts, becomes unnecessary.

  As a result, the opening / closing machine 43 can be easily detached while preventing the shutter curtain from being damaged.

  In the above method for attaching / detaching the shutter switch 43, the case where the shaft neck 39a is carried by a chain block or the like has been described as an example. However, by using the attachment / detachment jig 100 shown in FIG. In addition, the attachment / detachment of the switch 43 can be simplified.

  As shown in FIG. 4, the detachable jig 100 includes a latch bracket 71 that is latched on the side frame 29, one end rotatably supported by the latch bracket 71, and the other end in the vertical direction. Mainly includes an elevating rod 73 that can be swung, and an adjustment bolt 75 that is provided over the latch bracket 71 and the elevating rod 73 and moves up and down the other end of the elevating rod 73 by rotation. As a component.

  The latch bracket 71 includes a pair of parallel boards 77a and 77b extending in the vertical direction, a connecting angle member 79 connecting the upper portions of the boards 77a and 77b, and orthogonal directions from both longitudinal ends of the connecting angle member 79. And a stopper piece 83 that is fixed to both ends in the longitudinal direction of the hooking angle members 81 and 81 and sandwiches the upper frame 25. In addition, a shaft 85 for supporting the elevating rod 73 is fixed to one substrate 77a, and a clamping piece 89a through which the adjustment bolt 75 passes is fixed to the other substrate 77b.

  The lifting rod 73 has a hook plate 91 that engages with the shaft 85 and a recess plate 93 that restricts the movement of the shaft neck 39a. In the present embodiment, the hook plate 91 and the recessed plate 93 are integrally formed, but they may be formed separately. In addition, a clamping piece 89b through which the adjustment bolt 75 passes is provided at the end of the lifting rod 73 opposite to the hook plate 91.

FIG. 5 is an explanatory diagram of a procedure for attaching the lifting / lowering rod of the detaching method according to the present invention, FIG. 6 is an explanatory diagram of a procedure for lifting the lifting / lowering rod of the detaching method according to the present invention, and FIG. It is procedure explanatory drawing at the time of removal | desorption.
In order to carry the shaft neck 39 a using this detachable jig 100, the upper frame 25 with the hooking angle members 81, 81 as a part of the side frame 29 in a state where the lifting / lowering rod 73 is removed from the hooking bracket 71. Hang on.
Next, as shown in FIG. 5, the hook plate 91 of the elevating rod 73 is engaged with the shaft 85 so that the shaft neck 39a enters the inside of the recessed plate 93, and the elevating rod 73 is disposed immediately below the shaft neck 39a. To do.

  Next, the adjusting bolt 75 is inserted into the holding piece 89 b of the lifting / lowering rod 73 and the holding piece 89 a of the latching bracket 71. The adjustment bolt 75 has a head at the top, and a tip is inserted downward from the upper clamping piece 89a. Further, the lifting / lowering rod clamping piece 89b is passed through. Then, as shown in FIG. 6, a nut member (not shown) is screwed onto the downward tip.

Therefore, by rotating the nut member screwed to the adjustment bolt 75, the clamping piece 89a and the clamping piece 89b are brought close to each other, and the shaft neck 39a is lifted by the concave plate 93 by the principle of the lever. In order to easily rotate the nut member, it is preferable that the head of the adjustment bolt 75 is locked so as not to rotate relative to the clamping piece 89a.
When the clamping pieces 89a and 89b are brought close to each other, the chain 57 spanned between the small sprocket 53 and the large sprocket 55 is removed. Thereby, the shaft neck 39a is carried on the side frame 29 via the attaching / detaching jig 100, and the load on the opening / closing machine 43 is cancelled.
Thereafter, the opening / closing machine 43 is pulled out from the shaft neck 39a in the axial direction, and the attachment / detachment of the opening / closing machine 43 is completed as shown in FIG.

  According to the attaching / detaching method of the shutter opening / closing device using the attaching / detaching jig 100, it is not necessary to use a heavy machine such as a crane or a chain block that needs to be supported on the housing side, and the attaching / detaching jig 100 is set. By simply rotating the adjustment bolt 75 with a tool such as a spanner, the heavy weight shaft neck 39a can be easily carried. As a result, the work of detaching the opening / closing device 43 can be further simplified.

  Further, according to the detaching jig 100, when the adjustment bolt 75 is rotated in a state where the retaining bracket 71 is hooked on the side frame 29 and the lifting rod 73 is disposed directly below the shaft neck 39a, the lifting rod is lifted. The other end of the shaft 73 is raised, and a heavy weight shaft neck 39a is carried on the side frame 29 by the lever principle, so that the load on the entire shaft acting on the switch 43 can be canceled. As a result, it is not necessary to use a large crane heavy machine or a chain block.

  The adjustment bolt 75 as the adjusting means in the above-described embodiment is an example in which the holding pieces 89a and 89b are brought close to each other in combination with the nut member. However, a female screw hole is provided in any one holding piece. The adjusting bolt 75 may be directly screwed into the female screw hole. In this case, the head of the shaft 39a is supported in the same manner as described above by rotating the head of the adjusting bolt 75 with a tool or the like. Is possible.

  In addition to the above-described configuration using bolts, the adjustment means may have other configurations such as swinging the elevating rod 73 with a lever member or the like.

  Further, in the above-described embodiment, the shutter curtain has been described as an example configured with slats. However, as the shutter curtain, in addition to this, a plurality of panels and pipes connected, a sheet, a net, and the like are used. It may be configured.

It is a principal part perspective view of the shutter apparatus in which the removal | desorption jig | tool which concerns on this invention is used. It is the side view which looked at the side frame shown in FIG. 1 from the inner side. It is an AA arrow line view of FIG. FIG. 2 is an enlarged perspective view of the detaching jig shown in FIG. 1. It is procedure explanatory drawing at the time of attachment of the raising / lowering rod of the removal | desorption method which concerns on this invention. It is procedure explanatory drawing at the time of raising / lowering lifting / lowering of the attachment / detachment method which concerns on this invention. It is procedure explanatory drawing at the time of opening / closing of the opening / closing machine of the removal | desorption method which concerns on this invention. It is a principal part perspective view of the conventional shutter apparatus.

Explanation of symbols

21 ... Shutter device 29 ... Side frame 31 ... Movable plate 39 ... Shaft 39a ... Shaft neck (one end of the shaft)
43 ... Opening / closing machine 71 ... Hanging bracket 73 ... Lifting rod 75 ... Adjusting means (adjusting bolt)
100 ... Desorption jig

Claims (3)

The switch from the shaft of the shutter device comprising: a shaft around which the shutter curtain is wound; and a shaft shaft direct connection type switch attached to a movable plate via a fastening means and driven to rotate while supporting one end of the shaft A method for detaching a shutter opening / closing device for detaching
Using a desorption jig to support one end of the shaft,
The detaching jig is provided over a hanging bracket, a swingable lifting rod having one end pivotably supported by the hanging bracket, the hanging bracket and the lifting rod. Adjusting means for raising and lowering the end,
Hang the hanging bracket on a part of the side frame provided with the movable plate,
The lifting rod is disposed below the shaft between the shutter curtain and the switch,
Release the mounting state of the movable plate and the switch,
After operating the adjusting means to swing the other end of the lifting rod upward to carry the shaft and cancel the load on the switch,
A method for attaching / detaching a shutter opening / closing device, wherein the opening / closing device is pulled out from one end of the shaft in an axial direction and attached / detached. Desorption process of the shutter opening and closing apparatus according to claim 1, wherein the movable plate is provided movably inside of the side frame of the frame-shaped. A frame-shaped side frame fixed to the housing side, a movable plate movably provided inside the side frame, a shaft around which a shutter curtain is wound, and a fastening means attached to the movable plate via a fastening means, A detachable jig for a shutter switch for detaching the switch from the shaft of a shutter device having a shaft shaft direct-coupled switch that is driven to rotate while carrying one end of the shaft,
A retaining bracket that is secured to a part of the side frame;
A lifting rod with one end rotatably supported by the latch bracket and the other end swingable in the vertical direction;
An adjustment means provided over the hook bracket and the lifting rod to raise and lower the other end of the lifting rod;
An attachment / detachment jig for a shutter opening / closing device.

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