JPH0799072B2 - Seat shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a sheet shutter mainly installed at an entrance / exit of a factory or a warehouse or a side entrance of a partition.

<Prior Art> Conventionally, a curtain with a large number of transparent resin sheets in a strip shape with good visibility before and after the passage, or a sliding door type automatic opening / closing door is used for the entrance and exit of the partition passage or building as described above. It had been. In addition to these, for example, as a sheet shutter that can be translucent to the opposite side of the partition, and the shutter itself can be lifted up and down by a lift touch (lift type), No. 60-23437 and No. 57-1.
Publications such as 09196 are known, and a technique disclosed in Japanese Utility Model Publication No. 54-116953 is known as a hoisting type in which a shutter is wound by a drum.

<Problems to be solved by the invention> However, the above-mentioned curtain-type passage partition has a drawback that it is necessary to be manually wiped off when passing, or the conveyed object is damaged by the curtain when passing, so-called The automatic door is inconvenient because it has poor responsiveness when it tries to pass through.

In addition, the lift-type seat shutter described above (Shokai 57-109)
In No. 196), the rope is passed directly through the seat, so the shape of the seat is complicated and the cost is high. In the one with a lift device built into the side frame (No. Sho 60-23437), the side frame is large and heavy. In addition to high cost and difficult handling, it is difficult to adjust the height of the shutter frame.

Furthermore, in the drum hoisting type shown above, the motor for driving the drum is installed in front of or in the side of the gate type shutter frame, so that large projections are formed on the wall surface and partition surface of the entrance and exit. Hinder the work of
The side-projection type has a drawback that it cannot be downsized due to inconvenience of mounting.

<Means for Solving Problems> The sheet shutter of the present invention which solves the above problems has a horizontal direction between the sheet guides 13a and 13b which are upright on the left and right sides and the upper ends of the sheet guides 13a and 13b. A gate-shaped seat frame 1 is constituted by a horizontally installed seat case 2, a horizontal winding drum 3 rotatably supported in the seat case 2, and both ends of the seat guide.
A sheet 20 is provided which moves up and down while being guided by 13a and 13b, and the upper end of which is fixed to the winding drum 3.
The motor case 5 that houses the motor 4 is inside the end of the
And the base end of the motor case 5 is attached to the end plate 10 of the seat case 2 so as to be supported in a cantilever shape, and the drive shaft 7 of the motor 4 is wound on the inner end side of the motor case 5. It is characterized in that the mechanism is connected to the drum 3 side to transmit the rotation of the motor to the winding drum 3 side.

<Operation> In the sheet shutter of the present invention, when the motor 4 rotates in the normal and reverse directions, the sheet 20 wound around the winding drum 3 is wound.
The lower end of the seat shutter is guided by the seat guides 13a and 13b to descend or be wound up and lifted to open and close the elevating door, and the frame 1 of the seat shutter is attached to and supported by the structure 19.

The motor 4 is supported on the seat case 2 side via a motor case 5, and the seat case 2 is also rotatably supported on the seat case 2 side on one side via the motor case 5.

<Embodiment> The embodiment illustrated below will be described in detail. In a shutter frame 1 of a sheet shutter, an upper frame is constituted by a seat case 2 having a winding drum 3 housed therein, and both upper and lower ends of the seat case 2 are provided below. Sheet guides 13a and 13b made of a thin steel plate or the like project from each other to form a side frame, which is a gate type frame as a whole.

End plates 9 and 10 are fitted to both ends of the seat case 2, and a cylindrical motor case 5 housed in the end of the winding drum 3 is fixed to one end plate of the seat case 2. The motor 4 is fixedly housed and mounted in the motor case 5. The drive shaft 7 of the motor 4 protruding from the inner end of the motor case 5 is fixed to the rib plate 6 fixed inside the winding drum 3 and is also provided on the other end of the winding drum 3 so as to project. The end plate 9 is rotatably supported by an end plate 9, and the winding drum 3 is rotated by driving a motor 4.

As shown in FIG. 4, the upper end of a rectangular sheet 20 made of a transparent and flexible synthetic resin material is fixed to the winding drum 3 along the axial direction. By forward and reverse rotation of 3, the sheet 20 is fed down and lifted up and down. On the front side of the seat 20, a tube-shaped pipe accommodating portion 24 is horizontally provided over a number of steps, and a support pipe (support member) 23 having a certain rigidity and being as light as possible is inserted into each pipe accommodating portion 24. The straightness of the seat 20 in the left-right direction is maintained. Reference numeral 22 is a support member that concentrically supports the support tube 23 at both ends of the accommodating portion 24.

When the pipe accommodating portion 24 of the sheet 20 is wound around the winding drum 3, a large number of pipe accommodating portions 24 and the support pipes 23 overlap each other on the outer circumference of the drum so that the winding diameter thereof does not become excessive and noise is generated. The interval is set so that it does not occur,
This interval is mainly set for the winding drum 3 and the support tube 23.
It is generally calculated from the relationship between the equal diameter, the length of the sheet 20 and the opening height.

As shown in FIG. 3, the left and right sheet guides 13a and 13b are formed by tying two thin guide pieces together in a hollow cylindrical shape and fixed to each other. A groove-shaped guide portion 25 is formed for guiding up and down. A bar-shaped seat weight 21 is attached to the lower end of the seat 20.
The sheet is inserted into the sheet to maintain the straightness of the lower end of the sheet for sufficient grounding, and to apply tension to the entire sheet 20 suspended from the winding drum 3 and to smoothly move up and down.

Limit switches 14 and 15 are attached near the upper and lower limit positions of the lower end of the seat 20 in the seat guide 13b so that the motor 4 is stopped when the seat 20 reaches the upper and lower limit positions. A sensor 16 composed of an ultrasonic sensor or the like is installed on the front side above 13b so as to face the front side, and when a person or a carrier enters the front of the seat 20, the motor 4 is operated to close the seat. Twenty is automatically opened.

On the contrary, when the seat 20 is opened, when there is an obstacle under the seat, the sensors 17, 17 such as photocells for detecting the obstacle prevent the seat 4 from being lowered by the motor 4, and the sheet guides 13a, 13b are provided. Mounted inwardly below. Reference numeral 18 denotes a control box provided with electronic components for operating the above limit switches and sensors, operation buttons, etc., and is attached to the front side of the seat guide 13b.

FIG. 5 shows a structural example of the mounting tool 11 when partitioning the seat case 2 and mounting it to a universal access opening of a structure 19 such as a wall.
It is attached as shown in FIG. 1A or 1B, and the attachment 11 is fixed to the structure 19 so that the entire frame 1 can be suspended.

With such a mounting structure, the seat guides 13a and 13b do not have to support the entire weight of the lifting door or most of the weight thereof, and can be configured only to guide the seat 20. There are advantages such as improved molding workability, convenience of handling, improved cutting workability for adjusting the height of the gate-shaped frame, and cost reduction.

<Effects of the Invention> Since the present invention is configured as described above, a conventional sheet shutter is used, as compared with the curtain type, without the troublesomeness at the time of use and the collapse of the load and the damage due to the conveyed objects hitting the curtain. Compared to the case, the drive motor does not protrude to the outside, so mounting and handling are easy and compact,
In addition to being easy to downsize, it has many advantages such as weight reduction of the side frame and ease of height adjustment, and also has the effect of good responsiveness when the lifting and lowering of the seat shutter is automated.

In particular, the take-up drum is supported by the motor case laterally attached to one side of the seat case, and with the motor case inserted, the take-up drum has at least a connection part with the drive shaft. It is sufficient to provide the above-mentioned structure, and it does not require any other bearing part or motor support part, and has the advantages of simple structure and assembly / disassembly, weight reduction, cost reduction, and easy maintenance. Further, even if the motor is built in the winding drum, it is fixed to the frame side, so that a circuit configuration such as a rotating brush is unnecessary.

In addition, there is an advantage that noise is hardly generated when moving up and down as compared with the case where the seat is moved up and down by a lift.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a partial sectional front view, Fig. 2 is a side view of the same, Fig. 3 is a horizontal sectional view of a side frame (sheet guide) portion, and Fig. 4 is winding. FIG. 5 is a perspective view of a drum and a seat, and FIG. 5 is a partial perspective view showing an example of a mounting structure of a lifting door. 1: Frame, 2: Seat case 3: Winding drum, 4: Motor 5: Motor case, 7: Drive shaft 10: End plate, 13a, 13b: Seat guide 19: Structure, 20: Seat 23: Support tube ( Support member) 24: Housing

Front page continued (72) Inventor Shuichi Katsura 180, Higashiiwazaka, Yakumo-mura, Yatsuka-gun, Shimane Prefecture Within Komatsu Denki Sangyo Co., Ltd. (72) Toru Yoshida 180, Higashiiwazaka, Yakumo-mura, Shimane Prefecture In-house (56) References JP 58-199990 (JP, A) Actual development Sho 53-99844 (JP, U) Actual public 35-14676 (JP, Y1) Actual public 47-11412 (JP, Y1) )

Claims (3)

[Claims] 1. Sheet guides (13a), (13b) standing upright parallel to the left and right sides, and the sheet guides (13a), (13b).
Seat case (2) horizontally laid between the upper ends of the
And a gate-shaped seat frame (1), a horizontal winding drum (3) rotatably supported in the seat case (2), and both ends of the seat guides (13a), ( And a sheet (20) whose upper end is fixed to the winding drum (3) while being raised and lowered while being guided by 13b),
A motor case (5) accommodating a motor (4) is inserted into the end of the winding drum (3), and the base end of the motor case (5) is attached to the end plate () of the seat case (2). It is mounted on a cantilever beam and is attached to a cantilever, and the drive shaft (7) of the motor (4) is connected to the take-up drum (3) on the inner end side of the motor case (5) to wind the motor. A seat shutter with a mechanism that transmits power to the take-up drum (3). 2. A seat case (2) is attached to a structure (19) in which a seat shutter is installed, and the seat shutter is mainly hung on the structure, and a seat guide (13a),
The sheet shutter according to claim 1, wherein the seat shutter has a mechanism for reducing a load applied to (13b). 3. A sheet (20) having a structure in which a large number of rod-shaped support members are horizontally provided on the surface of the sheet (20), and when the sheet (20) is wound around the winding drum (3), the support member is a winding drum. The sheet shutter according to claim 1, wherein the support members are installed at intervals so that they do not overlap each other on the circumferential surface.