JPH11247553A - Wind-up delivery structure of sheet and utilizing device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the wind-up delivery structure of a sheet, in which the rigidity of a wind-up drum is improved and a diameter is reduced while the performance of the wind-up delivery structure of the sheet and a sheet shutter, etc., can be enhanced, and a utilizing device thereof. SOLUTION: The sheet is wrapped on a wind-up drum 3 forward and reversely rotated by a driving motor 4. The wind-up drum 3 is formed in a polygonal cylindrical body at that time, and the base-section side of the sheet is installed and fixed to the bent external side face 3b of the wind-up drum 3, and the wind-up delivery structure of the sheet is manufactured. The polygonal-shaped wind-up drum 3 is driven and supported by internally fitting supporting members 6 with a plurality of supporting pieces 61 joined with the bent internal side face of the wind-up drum 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet winding and unwinding structure and a device for using the same, which can be suitably used for a seat shutter installed at an entrance or a partition of a building such as a factory or a warehouse.

[0002]

2. Description of the Related Art Conventionally, a sheet shutter, which is provided at an entrance or a partition of a building such as a factory or a warehouse and provided with a shutter sheet movably up and down on a gate-shaped frame, is a core material for maintaining the straightness of the sheet. Winding a heavy-weight sheet horizontally laid at coarse intervals in the wind-up / draw-out direction at the frontage height with the base side attached to a cylindrical winding drum driven by a drive motor so that it can rotate forward and reverse. It is provided so as to be able to rotate for feeding.

[0003]

However, in the conventional seat shutter as described above, the take-up drum for taking up and rotating the sheet is a cylinder having a circular cross section.
In order to support a sheet with a heavy weight structure vertically by placing a plurality of cores horizontally, and to prevent deformation due to the impact of the core material coming into contact with the surface of the winding drum violently by the sheet wound at high speed, Since the take-up drum uses a large-diameter and thick-walled tubular body such as a PVC pipe, the take-up drum is large and large, and the sheet take-up diameter is large. However, there is a drawback that it is difficult to further increase the speed of the sheet winding and feeding rotation. In addition, the cylindrical take-up drum, when winding a heavy sheet at a high speed, the sheet in the state of being taken up by the take-up drum is tightly tightened in the take-up direction, so that the sheet tends to be stretched. And it is difficult to draw out.

[0004]

SUMMARY OF THE INVENTION A sheet winding and unwinding structure according to the present invention for solving the above-mentioned conventional problems has the following features.
The winding drum 3 rotated forward and reverse by the drive motor 4
The winding drum 3 is formed in a polygonal cylindrical body, and the base side of the sheet 2 is fixed to the bent outer surface 3b. It is characterized by.

Second, a plurality of support pieces 6 for joining the polygonal winding drum 3 to the bent inner side surface 3a of the winding drum 3 are provided.
1 is characterized in that the support member 6 having the first member 1 is internally fitted and driven and supported.

Third, the winding drum 3 and the sheet 2 are wound so that a portion of the core 21 laid laterally on the sheet 2 is positioned on the bent outer surface 3b of the winding drum 3. It is characterized by:

Fourth, the auxiliary drum 7 is provided on the outer periphery of the winding drum 3 to wind up the sheet 2.

Fifth, as a device for utilizing the sheet winding and feeding structure, the sheet winding and feeding structure according to claim 1 or 2 or 3 or 4 is provided inside a sheet case 10 formed on a gate-shaped shutter frame 1a. And the seat shutter 1 is configured by moving the seat 2 up and down along the side frame 11.

[0009]

An embodiment of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes a sheet shutter, and a shutter frame 1a is connected and supported at its upper portion by a hollow cylindrical sheet case 10 accommodating a sheet winding-out / feed-out structure to be described later and a horizontal frame 12. The seat case 10 is mounted and fixed on a horizontal frame 12 so as to form a gate-type frame as a whole. (Shutter) 2 accommodates a sheet take-up and feed-out structure in which a take-up and feed-out rotatable structure is accommodated on a polygonal (octagonal in the illustrated example) take-up drum 3, and both sides of the sheet 2 on the feed-out side are both side frames. The shutter frame 1a is configured so as to be able to move up and down by being inserted into the inside of the housing 11 and the shutter frame 1a is erected at an entrance of a building or the like, thereby making the entrance or exit possible. So that installation constituting the sheet shutter 1 for opening and closing a sheet 2.

The seat case 10 is formed such that the end plates 13 and 13 are detachably fitted to both ends of the hollow cover frame and fixedly attached thereto, thereby forming and maintaining the seat case 10 in an airtight manner. Winding drum 3 on the end plate 13
A drive motor 4 having a columnar shape that can be accommodated in the end portion is detachably fixed via a mounting screw, and the take-up and unwinding structure of the sheet facilitates replacement of the drive motor 4 and maintenance work of the sheet 2 and the like. . The sheet 2 has an upper end (base side) of a rectangular curtain made of a light-transmitting and flexible synthetic resin material fixed to a later-described bent outer surface 3 b along the axial direction of the winding drum 3. The forward and reverse rotation of the winding drum 3 (winding feeding rotation) enables the sheet 2 to be fed up and down, and to be lifted up and down.

The sheet 2 has a bag-shaped core material accommodating portion 20 formed in a plurality of steps at predetermined intervals in the longitudinal direction thereof in the same manner as a conventional one, and has a rod-like shape having a certain rigidity in each core material accommodating portion 20. The core material 21 is inserted to maintain the straightness of the seat 2 in the left-right direction, and a ground contact portion 22 is provided at the lower end of the seat 2. The grounding portion 22 has a core material 90 also serving as a rod-shaped weight inserted therethrough as described later with reference to FIG. 5, and an elastic grounding cover 92 is bent and covered so as to form a tube-shaped cross section. The structure is such that straightness is maintained, elasticity is provided, and sufficient grounding is performed.

The left and right side frames 11 are formed in a U-shaped cross section by combining two guide cases 15 made of a thin plate formed of a sheet metal, into which both ends of the sheet 2 are inserted and accommodated. It is guided so that it can go up and down. On the left side surface of the shutter frame 1a, an opening movement sensor (starting sensor) S composed of an infrared sensor is provided.
Is installed so as to face the center on the front side, and when the opening movement sensor S detects a passing object such as a person or a vehicle in front of the seat 2, the detection signal of the opening movement sensor S passes through the control box 5 through the control box 5. The configuration is such that the drive motor 4 is operated to automatically open the closed seat 2. In addition, on the lower side of both side frames 11, 11, contrary to the above, the seat 2
When there is an obstacle below the sheet 2 in a state where the sheet 2 is opened, a descent control sensor S1 composed of an infrared ray or a photoelectric tube or the like for detecting an obstacle for restricting the descent of the sheet 2 by the drive motor 4 is provided.

The drive motor 4 in this embodiment employs a motor with a brake that can rotate forward and reverse and has a drive shaft 40 of the drive motor 4 having a detection device (encoder or other sensor) at the other end. (Not shown) so that the control box 5 reads the rotation speed (signal) of the drive motor 4 detected by the detection device, and makes the control box 5 determine whether to operate or stop the seat 2 as desired. At the same time, the remote control switch 50 or the operation switch 51 provided on the control box 5 allows the seat 2 to be freely opened / closed and the mode setting such as the open / close pattern to be freely performed and the proper operation thereof to be performed.

Next, the above-described sheet winding and feeding structure will be described. The take-up drum 3 formed into a polygonal shape by means described later fits a support member 6 provided on a drive shaft 40 protruding inside the drive motor 4 into an inner right part of the take-up drum 3 and The support member 6a fixed to the support shaft 17 rotatably supported by the metal portion 16 on the left end plate 13 is fitted into the left end of the winding drum 3 so as to be stably inserted into the seat case 10. It is supported so that it can be wound and fed. In the illustrated example, the take-up drum 3 is fastened to the left support member 6a with the mounting screw 18, but the take-up drum 3 is taken up without being fixed in the axial direction for the reason described later. The drum 3 is favorably supported.

In the illustrated example, the supporting members 6 and 6a are formed in substantially the same shape, and both have four wide flat supporting pieces 61 on the outer periphery of the shaft support plate 60 at equal intervals. The support piece 61 is formed by bending the support piece 61 into a polygonal shape of the winding drum 3 and is fitted and joined to an inner flat surface (bent inner surface) 3a between the bent tops 3c. And With this structure, the left side of the take-up drum 3 is first positioned and fixed in the seat case 10 by the support member 6a, and then the support member 6 previously assembled with the drive motor 4 on the end plate 13 is moved to the right side of the take-up drum 3. Insert from
The winding drum 3 can efficiently and accurately support both sides thereof with a simple assembly structure.

In the support member 6, the width of the support piece 61 is formed to be a flat surface having substantially the same width as that of the bent inner surface 3a, and is smaller than the number of polygonal bent inner surfaces 3a of the winding drum 3. Each of the support pieces 61 projecting at equal intervals is regulated and held on the corresponding bent inner surface 3a of the winding drum 3 by the bent inner surfaces 3a on both sides of the bent top 3c. The support piece 61 can be satisfactorily joined to the support piece 61 without particularly requiring fixing means such as mounting screws, and the winding drum 3 is accurately driven by the support member 6 with a simple configuration without rattling. In addition to the above, it is possible to flatten the surface of the winding drum 3 so that the heads of the mounting screws do not protrude, so that the sheet 2 wound around the winding drum 3 can be easily prevented from being damaged or caught. And other benefits There is.

Accordingly, in the sheet winding and feeding structure configured as described above, the supporting member 6 provided on the driving motor 4 side is connected to the winding drum 3 while the winding drum 3 is positioned and fixed by one of the supporting members 6a. The driving portion and the supporting portion can be provided in the inner part of the winding drum 3 by a simple supporting means that is simply inserted into the winding drum 3. The wide surface can be satisfactorily joined to the bent inner surface 3a and can be stably supported.

In the winding drum 3 formed in a polygonal shape by the configuration described later, a plurality of bent tops 3c formed on the peripheral surface of the winding drum 3 together with the bent outer surface 3b are bent or twisted as angle-shaped reinforcing ribs. The winding drum 3 has sufficient rigidity with respect to the weight of the sheet 2 and does not deform or damage the winding drum 3 due to the load applied when the heavy sheet 2 is wound in a reversing manner. The drive can be performed smoothly for a long period of time, the diameter of the drum can be made as small as possible, and the maximum winding diameter of the sheet 2 can be made small, so that the compact seat case 10 is formed. There are features such as being able to.

Next, the configuration of the winding drum 3 and the mounting configuration of the sheet 2 will be described with reference to FIGS. The take-up drum 3 in the illustrated example has eight bends in a regular octagonal side view by connecting drum plates 30, 30, which are bilaterally symmetrically divided in the axial direction with a thin plate-like member, to each other. A polygonal cylindrical body having a top portion 3c and a bent outer surface 3b can be easily processed into a lightweight yet highly rigid structure, and the sheet 2 can be wound well. ing.

That is, the drum plate 30 is formed by bending a thin iron plate into a semi-polygonal shape by a curved plate machine, and is provided with a mounting screw 31 and a rivet 32 along both ends of the drum plate with a nut 33 through which each can be inserted. A plurality of mounting holes, rivet holes and the like are provided, and a pair of drum plates 30, 30 are fastened with mounting screws 31 and rivets 32 in a state where both end sides are overlapped as shown in the figure, thereby forming one polygonal shape. The winding drum 3 is configured so as to be manufactured with high rigidity and simple processing means.

The mounting screw 31 also serves as a fixing device for mounting and fixing the upper end portion of the sheet 2. When the mounting screw 31 is tightened, the mounting bag portion 23 formed in a bag shape is formed at the upper end of the sheet 2. With the mounting bar 34 inserted into the mounting bag portion 23 and having a rectangular shape in a side view in which a mounting hole for inserting the mounting screw 31 is inserted, the drum plate described above is inserted while the mounting screw 31 is inserted through both. 30 and 30 are fastened together. Both ends of the mounting bar 34 are fixed to the winding drum 3 by plate-like pressing pieces 35.

A cushioning auxiliary curtain 7 made of a sponge plate or the like having flexibility and appropriate elasticity is wound on the lower side of the mounting portion of the sheet 2 in the winding direction. The body 7 prevents direct contact between the peripheral surface of the take-up drum 3 and the sheet 2 at the time of take-up and feeding rotation, and when the heavy core 21 abuts against the take-up drum 3 vigorously, This is buffered to protect both, and noise and the like due to contact are prevented, so that quiet winding and feeding rotation can be performed.

That is, the auxiliary curtain 7 shown in FIGS.
Is a winding drum 3 having a thin sponge plate having substantially the same width as the sheet 2.
An adhesive 70 such as a double-sided adhesive tape is formed so that it can be wound one or more turns around its front end portion on the flat bent outer surface 3b formed on the surface side of the bent inner surface 3a. And the end portion side thereof is a winding drum 3
It is provided so that it can be free without being fixed to it. With this configuration, when the take-up drum 3 winds up the sheet 2 vigorously by the take-up rotation in the direction of the arrow in FIG. 5, the core materials 21 sequentially wound up are stored in the core material storage portion 20.
Since the sheet 2 comes into contact with the take-up drum 3 via the auxiliary curtain 7, the sheet 2 can be smoothly taken up and rotated without generating large repulsion or noise due to the contact.

As described above, since the lower side of the auxiliary curtain 7 is a free end, it follows the sheet 2 by the winding rotation of the winding drum 3 and appropriately fits the peripheral surface of the winding drum 3. As shown in FIG. 6, the free end side of the auxiliary curtain 7 is unwound following the sheet 2 at the final side of the unwinding rotation of the winding drum 3. Can be carried out smoothly, and the mounting structure of the auxiliary curtain 7 to the winding drum 3 can be simple and inexpensive, and even if the auxiliary curtain 7 is elongated due to long-term use, Since the auxiliary curtain body 7 is released at the free end side, the auxiliary curtain body 7 has an advantage that it can be suitably used for a long period of time without causing a joint failure or the like due to bending of the bent outer surface 3b during winding. .

Next, with reference to FIGS. 4 and 5, the configuration of the sheet 2 and the manner of winding and feeding the sheet 2 will be described. When the winding drum 3 winds the sheet 2, the cores 21 laid laterally on the sheet 2 at coarse intervals are positioned substantially evenly on the flat bent outer surface 3 b formed in a polygonal shape, and the same. By winding the sheet 2 so that the plurality of core members 21 located on the bent outer surface 3b are inconsistent with each other, the winding diameter of the sheet 2 is reduced as much as possible, and the core member receiving portions 20 arranged vertically above and below are arranged. However, it is possible to prevent the core material 21 from being intensely contacted with the core material 21 so that the core material housing portion 20 can be satisfactorily prevented from being damaged such as a crack or generating noise.

That is, since the diameter of the take-up drum 3 of the sheet 2 in the illustrated example is approximately 165 mm, the interval between the cores 21 laterally provided on the sheet 2 is, for example, approximately 547 mm, 567 from the top. Mm, 582 mm, 592 mm, 5
Each core material receiving section 20 is maintained at a different interval such as 82 mm.
, Each core material 2 as shown in FIG.
1 is positioned on the bent outer surface 3b without being positioned on the bent top 3c formed between the adjacent bent outer surfaces 3b of the winding drum 3, and the core material 21 is positioned inside and outside (up and down) on the bent outer surface 3b. ) To prevent overlapping of the plurality of core members 21 at the winding position.

The sheet 2 to be wound on the polygonal winding drum 3 is strongly joined at the bent top 3c to the inside and outside of the sheet 2 at the bent top 3c, but loosely overlaps at the bent outer side 3b due to its flat surface. Therefore, the sheet 2 can be reliably wound by the bent top 3c without strongly fastening the sheet 2 to the winding drum 3, and the sheet 2 can be wound to a small diameter while improving the durability. It is. Also, at the time of the feeding rotation, the sheet 2 portion which overlaps inward and outward in the wide area of each bent outer surface 3b is loosely overlapped and separated, so that the feeding and peeling of the sheet 2 is smooth and the closing operation of the seat shutter 1 is quickly performed. And so on.

Accordingly, the sheet shutter 1 having the sheet winding and feeding structure configured as described above can perform the winding and feeding operation of the sheet 2 satisfactorily by the winding drum 3 formed in a polygonal shape. In addition, the opening and closing of the frontage (entrance) by the lifting and lowering operation of the sheet 2 can be improved, and the speed of winding and feeding the sheet 2 can be increased. Another feature is that the apparatus can be compactly assembled, easily installed in a building or the like, and manufactured at low cost. When the diameter of the winding drum 3 is reduced, the octagonal body and the polygonal cylindrical body before and after the octagonal body may be integrally formed with a plastic material without being limited to the above-described iron plate bending means. .

When the sheet shutter 1 of the present invention is constructed with the sheet take-up and feed-out structure of the present invention, the grounding portion 22 formed at the lower end of the sheet 2 is provided with a double hanging member as shown in FIG. The structure 9 may be used. That is, in this case, the seat 2 has a core 90 serving also as a rod-shaped weight inserted and held in the core housing 25 at the lower end thereof, and the outer periphery of the core housing 25 is covered with a cushion member 91 such as a sponge. Thus, by forming a double hanging structure 9 which is bent and covered so as to form a tube-shaped cross section with an elastic grounding cover 92, the lower end of the seat is kept straight and the elasticity is provided so that the grounding can be suitably performed, and In addition, the structure is such that the feeding operation of the sheet 2 can be favorably promoted by the weight of the core material 90.

[0030]

According to the present invention, the following effects can be obtained by the above-described configuration. The winding drum that is rotated forward and reverse by the drive motor is formed in a polygonal cylindrical body, and the winding and unwinding structure of the sheet that winds and unwinds the sheet. Since the bending rigidity is improved by forming a plurality of angle ribs, even if the winding drum is formed of, for example, a thin iron plate, the winding drum has sufficient strength to prevent deformation, and has a small diameter of the winding drum. Therefore, it is possible to reduce the size and cost of the sheet take-out and unwinding structure and the sheet shutter and the like as a device for using the same.

The polygonal take-up drum can ease the tightening of the sheet during the take-up rotation by the bent top portion and the flat bent outer surface, so that the sheet take-up and feeding operation can be performed smoothly. it can. The polygonal take-up drum has a simple structure that can prevent the sheet from being damaged, etc., and can favorably support the drive by joining the support piece of the support member to the bent inner surface of the take-up drum. can do.

Further, when the winding drum winds the sheet, a core material portion provided at a coarse interval on the sheet is wound on the bent outer surface so that the winding diameter of the sheet can be reduced. In addition to this, by providing a cushioning auxiliary curtain on the outer circumference of the winding drum and winding the sheet, the impact of contact between the winding drum and the core material is reduced, thereby suppressing damage and noise of the both. be able to.

Further, the sheet shutter having the above-described sheet take-up / feed-out structure can perform the sheet take-up / feed-out operation satisfactorily with the winding drum formed in a polygonal shape. Are excellent, and they are advantageous in that they can be easily compacted and manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a seat shutter provided with a sheet winding and feeding structure according to the present invention.

FIG. 2 is a side view showing the seat shutter of FIG. 1 with a part cut away.

FIG. 3 is a front cross-sectional view showing a winding and feeding structure in a seat case.

FIG. 4 is an exploded perspective view of FIG. 3;

FIG. 5 is a sectional view showing a configuration of a winding drum.

FIG. 6 is a sectional view showing the feeding operation of FIG. 5;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sheet shutter 1 a shutter frame (frame) 2 sheet (shutter) 3 winding drum 3 a bent inner surface 3 b bent outer surface 3 c bent top 4 drive motor 6 support member 7 auxiliary curtain 10 sheet case 11 side frame 20 core material storage 21 Core material 30 Drum plate 34 Mounting bar

Claims (5)

[Claims] In a winding and feeding structure in which a sheet (2) is wound around a winding drum (3) rotated forward and backward by a drive motor (4), the winding drum (3) is formed in a polygonal shape. A sheet winding and unwinding structure which is formed in a cylindrical body, and the base side of the sheet (2) is fixedly attached to the bent outer surface (3b). 2. A support member (6) having a plurality of support pieces (61) for joining a polygonal winding drum (3) to a bent inner side surface (3a) of the winding drum (3). The sheet winding and feeding structure according to claim 1, wherein the sheet is driven and supported. 3. A winding drum (3) and a sheet (2), and a core material (21) partly laid laterally on the sheet (2) at a bent outer surface (3b) of the winding drum (3). 3. The sheet winding and unwinding structure according to claim 1 or 2, wherein the sheet is wound up while being positioned. 4. An auxiliary curtain (7) for cushioning is provided on an outer periphery of a winding drum (3) to wind up a sheet (2).
Or, a structure for winding and feeding out 2 or 3 sheets. 5. The sheet winding and unwinding structure according to claim 1, 2 or 3 or 4, wherein a gate-shaped shutter frame (1) is provided.
(a) is provided in a seat case (10), and the seat (2) is moved up and down along a side frame (11) to thereby take up and unwind a sheet constituting a seat shutter (1). Utilization device.