JP3160698U - Sheet shutter - Google Patents

Abstract

Provided is a sheet shutter that is not easily damaged by a strong wind and can be applied to a large entrance. A sheet includes a flexible sheet body, a flexible reinforcing belt that is flexible and is fixed to the sheet body at a predetermined interval and has a higher tensile strength than the sheet body. A weight rail 15 attached to the lower side of the seat body 13. A plurality of runners 16 are attached to both sides of the sheet 12 at predetermined intervals in the vertical direction, and guide rails 18 on which the runners 16 slide along the vertical direction are provided on both sides of the sheet 12. The seat 12 can escape the wind by bending the seat main body 13 and moving the weight rail 15 up and down in a strong wind. [Selection] Figure 9

Description

  The present invention relates to a sheet shutter installed at an indoor / outdoor entrance / exit of a business building such as a factory or a warehouse.

  The shutter is mainly installed at the entrance as an indoor / outdoor partition of a commercial building, and a steel shutter is generally used. However, the steel shutter has a problem that its price is relatively high.

  Therefore, a lower-priced sheet shutter may be used for a partition of a large entrance / exit building such as a material entrance / exit. If it is a sheet shutter, there exists an advantage that the expense of about 1/3 will suffice compared with a steel shutter.

  As a conventional sheet shutter, for example, the one described in Patent Document 1 is known. In the sheet shutter disclosed in Patent Document 1, metal cores are inserted into a plurality of core material accommodating portions provided at intervals in the vertical direction of the sheet, and outer ends smaller than the outer diameter of the core material are provided at both ends of the core material. A support rod having a diameter is attached, and the support rod is inserted into a support rod accommodating portion provided on the sheet, and the support rod is accommodated in a guide groove provided on both sides of the sheet together with the side edge of the sheet so as to be movable up and down.

  By making the support rod housing portion of the sheet thinner than the core material housing portion, the sheet is prevented from being bent or turned at the side portion, thereby improving the airtightness.

  In such a conventional sheet shutter, since the sheet is stretched and held in the width direction by the core material, the sheet is prevented from being bent during the opening / closing operation and by the wind. Further, when a strong load is applied in the bending direction due to a strong wind, the support rod has priority over the core material and breaks, thereby preventing the core material from being damaged.

JP 2009-24333 A

  However, in the conventional sheet shutter, because the support rod breaks in the case of a strong wind so that the load is missed, the support rod is likely to break, and even if the airtightness is normally maintained, When the wind is strong, the airtightness is not maintained at all, and the sheet is useless. In addition, there is a problem that it takes time and money to repair after damage.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a sheet shutter that is not easily damaged by strong winds and can be applied to a large entrance.

In order to achieve the above object, the present invention provides a seat and a seat shutter provided with guide rails along both sides of the seat, and both sides of the seat are guided along the guide rail and can be moved up and down.
The sheet is attached to a flexible sheet main body, a flexible belt that is flexible and is fixed to the sheet main body at a predetermined interval and has a tensile strength stronger than that of the sheet main body, and a lower side of the sheet main body. A weight, and
A plurality of runners are attached to both sides of the seat at predetermined intervals in the vertical direction, and each runner is slidable in the guide rail.
The seat is characterized in that it is possible to escape the wind by bending the seat body and moving the weight up and down in a strong wind.

  The invention according to claim 2 is the sheet shutter according to claim 1, wherein the upper end side of the sheet is connected to the winding drum, the sheet can be wound around the winding drum, and the plurality of runners are: Each time the winding drum winds up the sheet, the circumferential position is shifted from each other and the sheet is wound.

  The invention according to claim 3 is the seat shutter according to claim 1 or 2, wherein the reinforcing belt is made of nylon.

  According to a fourth aspect of the present invention, in the seat shutter according to any one of the first to third aspects, the guide rail has a C-shaped cross section, and the pair of opening edges each have a round bar shape. It is characterized by being.

  The invention according to claim 5 is the sheet shutter according to claim 4, wherein a synthetic resin cover is attached to the opening edge having the round bar shape.

  The invention according to claim 6 is the seat shutter according to any one of claims 1 to 5, wherein the runner is embedded with a ball capable of rolling with respect to a sliding contact surface with the guide rail. It is characterized by.

  The present invention is based on the idea of escaping the load during strong winds by actively deflecting the sheet, based on the idea of reversing the conventional concept of holding the sheet in a stretched state by the core material.

  That is, when the wind is strong, the flexible sheet main body and the reinforcing belt are both bent, and the weight moves up and down to create a wind escape path and allow the wind to escape. Since the side of the seat is restrained by the guide rail and the runner, the airtightness of the side can be maintained. Since there is no portion to which an unreasonable load is applied in this way, it can be configured to be difficult to break, and can be applied to a large entrance having a width or height of 4 m or more, which is not applicable in the conventional configuration.

  Since the reinforcing belt is fixed to the seat body and bends integrally, the relative belts do not move relative to each other, and wear between them can be prevented.

  When the sheet is wound on the take-up drum, the plurality of runners are wound around the take-up drum with the circumferential position shifted every time the take-up drum takes up one turn of the sheet. The sheet can be smoothly wound around the winding drum, and the runner can have a degree of freedom.

  By making the reinforcing belt made of nylon, the reinforcing belt can have high flexibility and strong tensile strength, and the sheet can be reinforced.

  By making the guide rail have a C-shaped cross section, the opening can be made smaller than the internal space, and the seat and the runner can be prevented from coming off the guide rail. Moreover, by making the pair of opening edges of the opening of the guide rail into a round bar shape, it is possible to prevent the sheet from being worn out when it comes into contact with the guide rail.

  By attaching the synthetic resin cover to the opening edge having a round bar shape, it is possible to more reliably prevent the sheet from being worn out when it comes into contact with the guide rail.

  By embedding a ball that can roll with respect to the sliding contact surface with the guide rail in the runner, friction between the runner and the guide rail can be reduced when the seat is raised and lowered.

1 is an overall front view of a sheet shutter according to an embodiment of the present invention. FIG. 2 is a partial front view of the sheet shutter of FIG. 1. It is sectional drawing seen from the side of the sheet shutter of FIG. It is the fragmentary sectional view seen from the side of the sheet shutter of FIG. It is a fragmentary perspective view of a guide rail. It is a fragmentary perspective view of a guide rail and a sheet. It is a fragmentary perspective view of a guide rail and a sheet. It is a perspective view of a runner (a sheet is omitted). It is sectional drawing seen from the side surface showing the operation | movement of the sheet shutter which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall view of a sheet shutter according to the present invention. In the figure, a sheet shutter 10 is installed as an entrance / exit partition of a building or the like, and has a sheet 12.

  The sheet 12 mainly includes a sheet body 13. The sheet body 13 is made of a sheet such as canvas and has flexibility. The canvas can be composed of a synthetic resin sheet woven with polyester, for example, by coating.

  A reinforcing belt 14 is fixed to the seat body 13 and integrated with the seat body 13. The reinforcing belt 14 is provided at least on both sides, the lower side, and the upper side of the seat body 13, and more preferably, the middle portion of the seat body 13 is spaced at predetermined intervals in the vertical and horizontal directions according to the width and height dimensions. A plurality of steps and a plurality of rows are secured by sewing. The reinforcing belt 14 is flexible, has the same degree of elongation as the sheet body 13, and has a stronger tensile strength (about 1 ton) than the sheet body 13, for example, woven with nylon fibers. Nylon belt can be used.

  A weight rail 15 is attached to the lower side of the seat body 13. As the weight rail 15, a metal rail having a mass that can maintain the state in which the seat main body 13 is reliably lowered by its own weight is selected. Preferably, the weight rail 15 is attached to the seat body 13 via the reinforcement belt 14 provided on the lower side of the seat body 13 or together with the reinforcement belt 14.

  A plurality of runners 16 are attached to both sides of the sheet 12 at predetermined intervals in the vertical direction. The runner 16 is preferably disposed at the same position as the plurality of stages of reinforcing belts 14 extending in the left-right direction. Preferably, the runners 16 are provided via the reinforcing belts 14 provided on both sides of the seat body 13 or the reinforcing belt 14. Together with the seat body 13.

  As shown in FIG. 8, the runner 16 is composed of two parts 16a and 16a having a substantially semi-ellipsoidal shape, a semi-oval shape, or a hemispherical shape. As a suitable example, it can be a molded product of a synthetic resin such as nylon, but is not limited thereto, and may be a metal part such as iron.

  By sandwiching the seat body 13 and the reinforcing belt 14 between the two parts 16a and 16a and fastening both the parts 16a and 16a with the bolt 16b, the substantially elliptical shape, the egg shape or the spherical shape (these are collectively referred to as the substantially spherical shape). The runner 16 having the shape of) is attached to the seat 12.

  Preferably, each component 16a, 16a of the runner 16 is embedded with a bearing ball 16c that can be rolled.

  Guide rails 18 are provided on both sides of the seat 12 so as to be fixed to vertical frames on both sides of the entrance and exit of a building or the like where the seat shutter 10 is installed (FIGS. 5 to 7). ). The guide rail 18 includes a C-shaped portion 18a having a C-shaped cross section. The C-shaped portion 18a has a size that allows the runner 16 to slide up and down in the internal space 18b, and that the runner 16 cannot pass through the opening 18c of the C-shaped portion 18a and only the sheet 12 can pass through. It has become. Opposing edges of the opening 18c are rounded bar-shaped portions 18d that are rounded to prevent the sheet 12 from being worn out, and a synthetic resin cover 20 is attached to the round-bar shaped portion 18d. Good.

  Runners 15a are also extended at both ends of the weight rail 15 and inserted into the guide rail 18 (see FIG. 4).

  As shown in FIGS. 3 and 4, the upper end of the seat 12 is inserted into a drum cover 22 attached above an entrance of a building or the like where a seat shutter is installed, and a chute 28 provided in the drum cover 22. And is connected to the winding drum 24. The winding drum 24 is pivotally supported by a drum shaft 26 in the drum cover 22 and is rotationally driven through a pulley provided at an end and a chain wound around the pulley if manually operated. 30 (see FIG. 2).

  In the sheet shutter configured as described above, the sheet body 13 has flexibility, and the reinforcing belt 14 made of nylon belt has the same degree of elongation as the sheet body 13 and has flexibility. 13 and the reinforcing belt 14 can be freely bent together. Therefore, when a strong wind hits when the seat 12 is closed, as shown in FIG. 9, the seat 12 bends like a sailing ship, and the weight rail 15 and the runner 16 move up and down along the guide rail 18 accordingly. Move. In this way, the wind path can be made and wind power can be missed.

  If the seat body 13 is made of a canvas made of polyester and the reinforcing belt 14 is made of a nylon belt, an elongation of about 30% can be obtained. Moreover, since the tensile strength of the nylon belt is 1 ton, the sheet body 13 is reinforced by the reinforcing belt 14 and can withstand strong wind.

  Even when the seat 12 bends, both sides of the seat 12 are restrained by the guide rails 18 by the runners 16, so that the airtightness of the sides of the seat 12 is maintained, and rain wind from the sides of the seat 12 is maintained. Can prevent intrusion.

  When the sheet 12 is raised, the winding drum 24 is driven to rotate manually or electrically to wind the sheet 12. At this time, the runner 16 moves up while sliding on the guide rail 18. When the bearing ball 16c is embedded in the runner 16, the bearing ball 16c can roll on the inner peripheral surface of the guide rail 18, so that the runner 16 can be moved smoothly.

  At the same time when the sheet 12 is wound on the winding drum 24, the runner 16 is also wound on the winding drum 24. As shown in FIG. 4, the pitch of the runners 16 and the vertical spacing of the reinforcing belts 14 are such that the runners 16 are wound up one by one every time the winding drum 24 rotates about one turn, that is, 360 ° ± α °. It is set so that it can be wound around the drum 24. In this way, when the runners 16 are wound up so that the runners 16 are not overlapped with the runners 16 that have already been wound by shifting by α °, the entire runners 16 are circled on the winding drum 24. It is arranged so as to be distributed at substantially equal intervals in the circumferential direction. Thereby, even if the runner 16 is large to some extent, the sheet 12 can be smoothly wound.

  As described above, since the present invention can withstand strong winds, it can be applied to large entrances with width and height exceeding 4 m. In addition, since both sides of the seat 12 are constrained by the runner 16, rainwater can be prevented from entering from both sides and airtightness can be provided. Therefore, a sheet shutter that is inexpensive and resistant to breakage can be obtained.

DESCRIPTION OF SYMBOLS 10 Sheet shutter 12 Sheet 13 Sheet main body 14 Reinforcement belt 15 Weight rail (weight)
16 Runner 16c Bearing ball (ball)
18 Guide rail 18a C-shaped part 18d Round bar shaped part (opening edge)
20 Synthetic resin cover 24 Winding drum

Claims (6)

A seat shutter provided with a guide rail along both sides of the seat, and both sides of the seat are guided along the guide rail and can be raised and lowered;
The sheet is attached to a flexible sheet main body, a flexible belt that is flexible and is fixed to the sheet main body at a predetermined interval and has a tensile strength stronger than that of the sheet main body, and a lower side of the sheet main body. A weight, and
A plurality of runners are attached to both sides of the seat at predetermined intervals in the vertical direction, and each runner is slidable in the guide rail.
The sheet shutter is characterized in that the sheet body can be bent in a strong wind and the weight can move up and down to release the wind.   The upper end side of the sheet is connected to a take-up drum, and the sheet can be taken up by the take-up drum. The plurality of runners are arranged in the circumferential direction for each take-up of the sheet of the take-up drum. The sheet shutter according to claim 1, wherein the sheet shutter is wound while being shifted from each other.   The sheet shutter according to claim 1, wherein the reinforcing belt is made of nylon.   The sheet shutter according to any one of claims 1 to 3, wherein the guide rail has a C-shaped cross section, and a pair of opening edges each have a round bar shape.   5. The sheet shutter according to claim 4, wherein a synthetic resin cover is attached to the opening edge having the round bar shape. The sheet shutter according to any one of claims 1 to 5, wherein a ball capable of rolling on a sliding contact surface with the guide rail is embedded in the runner.

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