JPH0578895U - Seat for seat shutter - Google Patents

Abstract

(57) [Summary] (Modified) [Object] The present invention relates to a sheet for a sheet shutter, and more particularly to a structure of a rib of the sheet. [Structure] The rib is composed of a plurality of rod members and a flexible member 20C interposed between the rod members and linearly connecting the plurality of rod members 20A and 20B as one rib. [Effect] When the rib receives an external force that bends,
The flexible member absorbs the impact, the bending of the rib is prevented, and the original shape is maintained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet for a sheet shutter, and more particularly, to a rib structure of the sheet.

[0002]

[Prior Art]

 Seats for seat shutters are hung down at the entrances and exits of worksites such as warehouses and factories. It is rolled up and unwound after passing. Therefore, this type of sheet also has a weight for the purpose of increasing the unwinding speed, maintaining the tension of the sheet in the unwound state, and preventing the sheet from swaying due to wind pressure. An appropriate number of metal bars are inserted horizontally as ribs.

[0003]

[Problems to be solved by the device]

 Conventional ribs used a simple metal rod, so if a work vehicle or its load contacts the metal bar of the seat, the metal rod will bend and the seat cannot be rolled up. There was an inconvenience that it became impossible to pass through the entrance and exit. If the metal bar material bends, the roll-up of the sheet may cause lateral displacement or break through the sheet, so it is necessary to replace the rod member. In addition, the entrance will be blocked until the replacement is completed, which will greatly hinder the work. The present invention is intended to solve such a problem.

[0004]

[Means for Solving the Problems]

 The present invention relates to a rib (20) horizontally inserted into a sheet (12) for a sheet shutter, wherein the rib (20) includes a plurality of rod members (20A, 20B) and a rod member (20A. 20B) and a flexible member (20C) that linearly connects a plurality of rod members as one rib (20), and receives an external force enough to bend the rib (20). At this time, the flexible member (20C) absorbs an impact to prevent the rib (20) from bending and maintain its original shape.

[0005]

[Function of the device]

 When the rib receives an external force, the flexible member absorbs the impact and prevents the rib from being bent or bent.

[0006]

【Example】

 FIG. 1 shows a sheet shutter device. Reference numerals 10 and 10 are sill members that are erected on both sides of a doorway, 11 is a beam member that is bridged between the upper ends of the left and right pillar members 10 and 10, and 12 is a sheet. Is. Now, the seat 12 is hung down and the door is blocked. The sheet 12 is rolled up or rolled down by a winding shaft (not shown) built in the beam member 11. Reference numeral 20 in the drawing is a rib that is horizontally inserted into this sheet.

In FIG. 2 and FIG. 3, one rib 20 is divided into a plurality of rib constituent members 20A and 20B at appropriate places, and the divided left and right rib constituent members 20A and 20B are separated. The flexible member 20 is interposed between the end faces, and the rib constituent member 20A, the flexible member 20C, and the rib constituent member 20B are linearly connected to form the rib 20 made of a composite member. The rib 20 of the embodiment is a metal pipe, and a spring is used as the flexible member 20C. The rib 20 is not limited to metal, and may be synthetic resin or other material. The spring 20C is firmly connected to both ends of the spring 20C through a connecting member inserted into the pipe holes of the rib constituting members 20A and 20B.

FIG. 4 shows a state where 20 A of the rib 20 receives an external force. Although the flexible member 20C once bends, the elastic member immediately returns to the original state by the elastic force. FIG. 5 shows an example in which flexible members 20C and 20C are provided on both ends of the rib 20, respectively. The number of rib constituent members that divide one rib 20 into which the flexible member 20C is disposed may be arbitrarily determined according to the application.

[0009]

[Effect of the device]

 The present invention is a flexible structure in which a rib inserted horizontally in a sheet for a sheet shutter is linearly connected to a plurality of rod members and a plurality of rod members interposed between the rod members as one rib. Since it is composed of a member, when the rib receives an external force enough to bend it, the flexible member absorbs the impact, preventing the rib from bending and maintaining its original shape. Therefore, it is possible to eliminate the failure of the shutter to move up and down, eliminate the need to replace the ribs, and operate the sheet shutter device efficiently.

[Brief description of drawings]

FIG. 1 is a front view of a sheet shutter device.

FIG. 2 is a side view of a rib of the present invention.

FIG. 3 is a side view of a rib of the present invention.

FIG. 4 is a vertical sectional side view of a rib of the present invention.

FIG. 5 is a side view of a rib provided with flexible members at two positions.

[Explanation of symbols]

12 seat 20 rib 20A rib constituent member 20B rib constituent member 20C flexible member (spring)

Claims (1)

[Scope of utility model registration request] 1. A rib which is horizontally inserted into a sheet for a sheet shutter, wherein the rib is a plurality of rod members, and the plurality of rod members are interposed between the rod members to form a straight line. A flexible member that is connected to each other, and when the rib receives an external force enough to bend it, the flexible member absorbs the impact to prevent the rib from bending and maintaining its original shape. Characteristic sheet shutter sheet.