JP4890852B2 - Switchgear - Google Patents

Description

  The present invention relates to an opening / closing device that partitions or opens a space by an opening / closing body having a flexible sheet portion, and more particularly to an opening / closing device suitable as a so-called screen shutter device.

Conventionally, in this type of opening and closing device, as in the invention described in Patent Document 1, for example, the opening and closing body is made of a flexible flexible sheet material in order to improve the opening and closing speed and reduce the weight of the opening and closing body. There is what I did.
In the prior art, an opening / closing body (shutter curtain 2) is formed by sewing a plurality of sheet materials (fireproof sheets 50A, 50B, 61A, 61B, 61C, etc.) in the opening / closing body opening / closing direction and the opening / closing body width direction. The opening / closing body (shutter curtain 2) is wound around the winding body (winding shaft 3).

However, according to the above-described prior art, when the opening / closing body is wound around the winding body, tension is generated in the sewing thread that sews the adjacent sheet material, and when this tension acts repeatedly, the sewing thread is torn off, There is a possibility that a plurality of sheet materials constituting the opening / closing body may be separated.
In particular, as shown in FIG. 8, the sewing point 100 extending in the opening / closing body opening / closing direction is usually sewn with two sewing threads 110, 120. Of these two sewing threads 110, 120, A relatively strong tension is generated in the sewing thread 110 (or 120) on the outer peripheral surface side when it is wound around the body.
JP 2001-82056 A

  This invention is made | formed in view of the said conventional situation, The process made into the subject is providing the opening / closing apparatus which can improve the durability of a flexible sheet | seat part.

One means for solving the above-described problem includes an opening / closing body having a flexible sheet portion, and a winding body that winds or unwinds the opening / closing body to open / close the flexible sheet portion. In the opening and closing device constituted by a plurality of sheet materials that are continuously provided and sewn in the opening and closing body surface direction,
The adjacent sheet materials are overlapped on the end side and sewn in a substantially linear shape across the opening / closing body opening / closing direction by ring stitching, and the ring-sewn sewing thread includes an annular portion bent in an annular shape, A main-stitch-like portion passed through the annular portion, and the annular portion is arranged so as to be on the outer peripheral surface side when the opening / closing body is wound around the winding body, and the main-sewing And the opening / closing body has a flexible sheet portion, and the flexible sheet portion is inserted into the sheet material so as to extend to the inner peripheral surface side with respect to the outer peripheral surface side of the sheet material. Is configured to connect a plurality of seat part constituent members in the opening / closing body width direction, connect adjacent sheet part constituent members by detachable fastening means, and release the tension in the opening / closing body width direction at the connection point. The sheet portion is formed with a bend in the opening / closing body width direction. Each adult member, characterized by consisting of a plurality of the sheet material which is continuously provided to the opening and closing member widthwise by the chain stitch.

The first embodiment includes an opening / closing body having a flexible sheet portion, and a winding body that winds or unwinds the opening / closing body to open / close, and moves the flexible sheet portion toward the opening / closing body surface. In the opening and closing device constituted by a plurality of consecutively sewn sheet materials, the adjacent sheet materials are overlapped and stitched on the end sides, and an annular portion formed by the ring stitching is formed. When wound on the winding body, it is disposed so as to be on the outer peripheral surface side.
Here, in the switchgear according to the present embodiment , the mode in which the switchgear is used to perform only the closing operation (for example, a shutter device that is closed for the purpose of smoke shielding or flame shielding only in an emergency) A mode in which the body is used to perform only an opening operation (for example, a shutter device that is opened only for emergency purposes), a mode in which the opening / closing body is used to perform both an opening operation and a closing operation, etc. including.

The opening / closing body may have at least a flexible sheet portion. Therefore, the opening / closing body includes, for example, an aspect in which substantially the entire region is configured by the flexible sheet portion, a portion is configured by the flexible sheet portion, and the other portion is configured by so-called slats, pipes, panels, and the like. The aspect etc. which were made are included.
In addition, the said flexible sheet part means the site | part comprised with the flexible sheet | seat material. The flexible sheet portion includes a synthetic resin material, a cloth material, and the like in terms of material, but has fire resistance particularly when considering fire resistance (including flame retardancy and non-flammability). It is preferable to be constituted by a material or a material processed to have fire resistance.

In addition, the winding body includes a mode in which the winding body is rotatably received by the support member from the lower side, a mode in which portions on both ends in the axial direction are received by a bearing member such as a bearing, and the like.
In addition, the wound body includes one formed in a hollow shape, a solid shape, a cylindrical shape, a saddle shape, or the like.

  The chain stitch may be a so-called single ring stitch with one sewing thread or a so-called double chain stitch with two sewing threads, but the latter has a tension acting on one thread in the other. It is effective because it is difficult to act on the yarn.

Further, in the second embodiment, the sheet material adjacent above, that sewn into a substantially linear over the opening and closing member opening and closing direction.

In the third embodiment , the sewn portions are arranged in a plurality of rows arranged in the opening / closing body width direction, and at least one of the sewn portions of the plurality of rows is sewn with a sewing thread mainly made of stainless fiber. Tei Ru.

Further, in the fourth embodiment, among the sewing portion of the plurality of rows, that have at least one row of sewn by sewing thread for the synthetic resin fibers as a main raw material.

According to a fifth aspect, there is provided an opening / closing device configured to rotatably receive the winding body and the flexible sheet portion wound around the winding body by a support member on a lower side thereof. Thus, an abrasion-resistant sheet is provided between the flexible sheet portion and the support member .

  Here, the support member preferably has a small friction coefficient in the surface shape and material of the portion that contacts the winding body and the opening / closing body wound around the winding body. A roller-like aspect that rotates by receiving the winding body and the opening / closing body wound around the winding body, and receives the opening / closing body wound around the winding body and the winding body from below. And the like that are made to slide and rotate.

  In addition, in the configuration that “a wear-resistant sheet is provided between the flexible sheet portion and the support member”, the above-mentioned resistance to the sheet is provided between the flexible sheet portion and the support member. An aspect in which an abrasion-resistant sheet is sandwiched, an aspect in which an abrasion-resistant sheet is superimposed and fixed on the surface of the flexible sheet portion, and the abrasion resistance on the support surface of the support member It includes an aspect in which the sheets are stacked and fixed.

The fifth embodiment, even independent inventions not dependent on the first to fourth embodiment, advantageous effects of the fifth embodiment to be described later.
That is, the independent invention includes an opening / closing body having a flexible sheet portion, a winding body that winds or unwinds the opening / closing body to open / close, and the winding body and the winding body. In a switchgear provided with a support member that receives the flexible sheet portion when pivoted from below, an abrasion-resistant sheet between the flexible sheet portion and the support member It is characterized by providing.

In the sixth embodiment , the wear-resistant sheet is provided integrally with the sheet material .

In the seventh embodiment , the flexible sheet portion includes a fiber layer made of a flexible fiber material, a water repellent treatment layer provided on at least one surface side of the fiber layer, and the repellent layer. ing a resin coating layer on the surface of the water treatment layer.

This seventh embodiment has the same effects as the seventh embodiment described later, even as an independent invention that does not depend on the first to sixth embodiments .
That is, this independent form is an opening / closing device configured to open / close an opening / closing body having a flexible sheet portion, wherein the flexible sheet portion includes a fiber layer made of a flexible fiber material, A water repellent treatment layer provided on at least one surface side of the fiber layer and a resin coating layer provided on the surface of the water repellent treatment layer are provided.

According to an eighth aspect of the present invention, there is provided an opening and closing device configured to receive the winding body and the flexible sheet portion wound around the winding body by a support member on a lower side thereof. The flexible sheet portion is formed on a fiber layer made of a flexible fiber material, a water-repellent treatment layer provided on at least one surface side of the fiber layer, and a surface of the water-repellent treatment layer. The resin coating layer was provided, and the resin coating layer was disposed on at least the surface in contact with the support member .

In the present specification, the “opening / closing body width direction” means a direction substantially perpendicular to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body. The “opening / closing body thickness direction” means the opening / closing body thickness direction in the closed state.
Further, in this specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body moves to partition or open the space .

Since the said form is comprised as demonstrated above, there exists an effect as described below.
According to the first embodiment , when the flexible sheet portion is wound around the winding body, the annular portion of the sewing thread that is sewing the adjacent sheet material is positioned on the outer peripheral surface side. The tension acting on the sewing thread can be reduced by elasticity.
Therefore, it is possible to prevent the sewing thread from being torn off due to the tension when the flexible sheet portion is wound around the winding body, and as a result, the durability of the flexible sheet portion can be improved.

Furthermore, according to the second embodiment , the elasticity of the annular portion of the sewing thread can be effectively exhibited, and the tension acting on the sewing thread can be further reduced.

Further, according to the third embodiment, for example, even such as the unlikely event that a fire occurs, the suture is burnt all can sheet material adjacent prevent from being separated, they shed Can improve the fire resistance of the flexible sheet portion.

Furthermore, according to the fourth embodiment , during normal use, the elasticity between adjacent sheet materials can be maintained by the sewing thread mainly composed of synthetic resin fibers, and in the event of a fire, the synthetic resin fibers Even if the sewing thread having the main raw material burned out, it is possible to prevent the adjacent sheet materials from being separated by the sewing thread having the main raw material of the stainless fiber.

Furthermore, according to the fifth embodiment , the wear-resistant sheet can prevent the flexible sheet portion from being damaged by friction with the support member.

Furthermore, according to the sixth embodiment, it is possible to further improve the durability of the flexible sheet portion. For example, the flexible sheet portion when the opening / closing body is closed is damaged by a tension caused by wind pressure or the like. Can be prevented.

Furthermore, according to the seventh embodiment , when the flexible sheet portion is resin-coated, the water-repellent treatment tank prevents the resin from penetrating into the fiber layer, so that the flexibility of the fiber layer is maintained. Thus, the durability of the flexible sheet portion can be improved.
That is, when the flexible sheet portion is resin-coated without forming the water repellent treatment tank, the resin soaks into the fiber layer, so that the flexibility of the fiber layer is lost, and the flexible sheet portion May be damaged by bending force such as when wound around the winding body or when subjected to wind pressure.
However, according to this embodiment , since the state in which the resin does not soak into the fiber layer can be maintained, the above-described damage can be prevented by the flexibility of the fiber layer.

Furthermore, according to the eighth embodiment , the flexibility of the fiber layer can be maintained and the durability of the flexible sheet portion can be improved, and the flexible sheet portion can be connected to the support member by the resin coating layer. It is possible to prevent wear due to friction .

Next, a specific example of the above embodiment will be described with reference to the drawings.
The following specific examples are arranged in houses, buildings, warehouses, factories, underground malls, tunnels, vehicle loading platforms, etc., construction openings, and inside the constructions / structures. An opening / closing device for partitioning or opening a space inside a construction / structure, particularly an opening / closing device preferable as a screen shutter device in which substantially the entire area of the opening / closing body is formed of a flexible sheet material will be described.

  The opening / closing device includes an opening / closing body 10 having a flexible sheet portion 11, a winding body 20 that opens and closes the opening / closing body 10 by winding and unwinding the opening / closing body 10, and the winding body 20 and the winding body. A support member 30 that receives the flexible sheet portion 11 when it is wound so as to be rotatable from below, and a guide rail (not shown) that guides the opening / closing body 10 in the opening / closing direction at both ends in the width direction. It has.

  The opening / closing body 10 includes a flexible sheet portion 11 constituting substantially the entire area of the opening / closing body 10, and a fastening member 12 provided at an end of the flexible sheet portion 11 on the opening / closing body opening direction side ( 2) and a seat plate member 15 provided at the end of the flexible sheet portion 11 on the side of the opening / closing body closing direction.

  The flexible sheet portion 11 includes a plurality of sheet portion constituent members 11a arranged in the opening / closing body width direction so as to correspond respectively to a plurality of winding member constituting members 21 constituting a winding body 20 described later. The mating sheet portion constituting members 11a and 11a are connected by a detachable fastening means 13, and a bending is formed in the opening / closing body width direction so as to release the tension in the opening / closing body width direction at the connection location.

Each sheet member constituting member 11a overlaps a plurality of sheet materials 11a1 arranged in the opening / closing body width direction on the end side (see FIG. 3), and the overlapped portion p is an abbreviation that extends in the opening / closing body opening / closing direction. It is configured by chain stitching in a line.
Each sheet material 11a1 is, for example, fire-resistant (flame retardant or non-flammable fabric such as glass cloth or silica cloth), vinyl chloride resin sheet material subjected to fluorine processing, synthetic resin sheet material containing glass fiber, or the like. A flexible sheet material having non-combustibility and the like).
And the edge part of the opening / closing body opening direction side of each sheet | seat part structural member 11a is formed in the longitudinal cross-section substantially bag shape so that the fastening member 12 may be inserted over the opening / closing body width direction (FIG. 2).

If the said chain stitch is demonstrated in detail, as shown in FIG. 3, as for the adjacent sheet materials 11a1 and 11a1, the edge part side of the opening-and-closing body width direction will be piled up. In the overlapping portion p, two rows of sewing portions 41 and 42 arranged in the opening / closing body width direction are arranged.
One sewn portion 41 is a portion that is ring-sewn with a sewing thread that uses stainless steel as a main raw material.
The other sewn portion 42 is a portion sewn with a sewing thread whose main raw material is synthetic resin fiber (for example, aramid fiber).
In addition, according to a preferred example of the present embodiment, the chain stitch is a so-called double chain stitch using two sewing threads, but a single ring stitch using one sewing thread may be used.

As shown in FIG. 4, each sewn portion 41 (or 42) has a plurality of annular portions 41 a (or 42 a) formed by one sewing thread and the outer circumferential surface side when the wound body 20 is wound. It is located to become.
Therefore, the main-stitched portion 41 b (or 42 b) formed by the other sewing thread is positioned so as to be on the inner peripheral surface side when wound on the winding body 20.

And the sheet | seat part structural member 11a formed by sewing the said sheet | seat material 11a1 is arrange | positioned in multiple numbers by the opening-and-closing body width direction, and the edge part side of adjacent sheet | seat part structural member 11a, 11a is piled up, and the overlap | superposition is carried out. The parts q are connected by the fastening means 13 (see FIG. 1).
The overlapping portion q is appropriately bent so as to enter the space portion between the adjacent winding body constituting members 21 and 21.
According to this configuration, even if a tension in the opening / closing body width direction acts on the flexible sheet portion 11 due to wind pressure, vibration, or the like, the tension can be relaxed by the bending of the overlapping portion p. As a result, damage to the flexible sheet portion 11 can be prevented.

The fastening means 13 may be configured, for example, as a so-called snap that fits the concave member and the convex member, or a so-called button that locks the button body through the button hole. it can.
When the fastening means 13 is the snap, the workability when connecting the adjacent sheet portion constituting members 11a and 11a is good, and the closing shielding property when the opening / closing body 10 is closed is effectively used. Can be secured. In addition, since the concave member and the convex member in a connected state can be removed relatively easily, the concave member and the convex shape can be removed even when the opening / closing body 10 is closed, for example, in an emergency. An opening for evacuation or the like can be easily formed by removing the member, and when a strong tension is generated in the flexible sheet part due to a gust of wind or the like, Since the convex member is detached, damage to the flexible sheet portion 11 can be prevented.
Further, when the fastening means 13 is the button, movement of the button body in the opening / closing body width direction can be allowed to some extent by deformation of the button hole, so that the opening / closing body width direction acting on the flexible sheet portion 11 is allowed. The tensile force can be relaxed.
As other examples of the fastening means 13, a slide fastener, a hook-and-loop fastener, bolts and nuts, magnets, staples, and other engaging / disengaging members may be used.

In addition, a fastening member 12 is inserted into a substantially bag-shaped portion of the longitudinal direction of the opening and closing body opening direction side of each of the sheet member constituting members 11a (see FIG. 2).
The fastening member 12 is Ri Oh in rod-shaped member of each winding-up body structure member 21 substantially the same length of the winding body 20, in accordance with a preferred example shown in the figure, and a longitudinal sectional rectangular bar-like member.
The material of the fastening member 12 may be a rigid material. In particular, from the viewpoint of improving fire resistance and productivity, it is preferable to use a metal material such as a steel material or a stainless steel material. A rigid resin material, wood, ceramic material, stone material, or the like can also be used.

  Further, the winding body 20 includes a plurality of winding body constituting members 21 arranged at predetermined intervals over the width direction of the opening / closing body by a core 23 (see FIG. 2) and a shaft member 22 from the inside. It consists of supporting and connecting.

Each of the winding member constituting members 21 is a substantially cylindrical member made of a relatively lightweight metal material. The winding member constituting member 21 includes a concave portion 21a extending in the axial direction on the outer peripheral surface thereof, and the fastening member 12 is fitted into the concave portion 21a. The projection amount of the fastening member 12 in the centrifugal direction is reduced.
According to this configuration, it is possible to reduce the thickness of the sheet portion constituting member 11a wound around the winding member constituting member 21, and the sheet portion constituting member 11a is worn or worn by friction with the support member 30 or the like. The possibility of breakage or the like can be reduced.

  And the winding body 20 of the said structure is received by the several support member 30 arrange | positioned by the predetermined interval over the opening-and-closing body width direction on the downward side, The axial direction edge part side Is rotated in the forward and reverse directions by a drive source 25 (for example, an electric motor, an air motor, a manual rotation mechanism, etc.) provided in

Each support member 30 is a member that receives the winding body 20 and the flexible sheet portion 11 when wound around the winding body 20 from below, and according to the illustrated example, the flexible sheet portion 11 11 is formed in a substantially C-shaped cross-section in which a portion through which 11 is inserted is cut out (see FIG. 2).
The dimension of the support member 30 in the opening / closing body width direction is set to a length that covers the overlapping portion p of the adjacent sheet materials 11a1 and 11a1.
And this support member 30 is arrange | positioned so that it may respond | correspond to each overlap part p where a winding diameter is comparatively easy to stabilize, and it becomes the flexible sheet | seat part 11 at the time of winding on the winding body 20. Makes stable contact.
The support member 30 can be disposed at a position that does not correspond to each overlapping portion p. However, in this case, the support member 30 and the winding member are supported because the support member 30 supports a portion where the winding diameter is not stable. The contact pressure with the flexible sheet portion 11 when wound around the body 20 tends to vary.
Further, according to the illustrated preferred embodiment, the support member 30 is disposed so as to receive the sewing portions 41 and 42 in the respective overlapping portions p.
That is, if the support member 30 is disposed so as not to receive the sewing portions 41 and 42, a tension in the width direction of the opening / closing body is generated at the location of the sewing portions 41 and 42, and the sewing is performed by the tension. Although there exists a possibility that the parts 41 and 42 may loosen, according to the example of illustration, since the sewing parts 41 and 42 are pressed by the support member 30, the above malfunctions can be prevented.

  According to the opening / closing device having the above-described configuration, when the flexible sheet portion 11 is wound around the opening / closing body 10, the annular portions 41a and 41b of the sewing thread that sew the adjacent sheet materials 11a1 and 11a1 are connected to the outer peripheral surface side. Therefore, the tension acting on the sewing thread can be reduced by the elasticity of the annular portions 41a and 41b, and the durability of the flexible sheet portion 11 can be improved.

In the opening / closing device, the support member 30 may be replaced with a support member 30 ′ shown in FIG.
The support member 30 'is configured to rotatably support a pair of rollers 31' and 32 'disposed substantially horizontally by a bracket 33'.
A plurality of support members 30 ′ are provided at predetermined intervals in the winding body axial direction with respect to each of the plurality of winding body constituting members 21, and each bracket 33 ′ is fixed to a fixing portion on the lower side thereof. ing.
The pair of rollers 31 ′ and 32 ′ includes a virtual straight line connecting the center of one roller 31 ′ and the center of the winding body 20, and the center of the other roller 32 ′ and the center of the winding body 20. angle between the virtual line connecting θ is set to substantially 60 degrees. This angle can reduce the load that each roller 31 '(or 32') receives from the winding member constituting member 21, and prevents the winding member constituting member 21 from falling off the pair of rollers 31 ', 32'. Is a suitable angle derived experimentally.

Further, each sheet material forming each sheet portion constituting member 11a of the flexible sheet 11, the sheet material 11a1 'and shown in FIG. 6 as status like you more improved durability, sheet 11a1 shown in FIG. 7 "May be used.

The sheet material 11a1 ′ shown in FIG. 6 is formed by superimposing a wear-resistant sheet 11a2 on the sheet material 11a1 having the above-described configuration.
The abrasion-resistant sheet 11a2 is a sheet made of synthetic resin fibers such as PET, and is bonded to the surface of the sheet material 11a1 having the above-described configuration with an adhesive. In addition to the above, means for integrally forming the wear-resistant sheet 11a2 on the surface of the sheet material 11a1 may be heat welding, sewing, or the like.

The wear-resistant sheet 11a2 may be provided at least at a position corresponding to each support member 30, but according to a preferred example of the present embodiment, the wear-resistant sheet 11a2 is provided so as to cover substantially the entire surface of each sheet material 11a1. .
Accordingly, the flexible sheet portion 11 made of a plurality of sheet materials 11a1 ′ is covered and reinforced by the wear resistant sheet 11a2 over substantially the entire surface.

And sheet material 11a1 'of the above-mentioned composition is used so that abrasion-resistant sheet 11a2 may become an outer peripheral surface side, when wound around winding body 20.
According to the above configuration, when the flexible sheet portion 11 is wound around the winding body 20, the wear resistant sheet 11 a 2 comes into contact with the support member 30.
Therefore, it is possible to prevent the flexible sheet portion 11 from being damaged by friction with the support member 30 (or 30 ′).

  In addition, according to the example of illustration, although the said abrasion-resistant sheet | seat 11a2 is provided only in one surface of the sheet | seat material 11a1, by providing in both surfaces, abrasion resistance of the flexible sheet | seat part 11 is provided. You may make it improve a property, durability, etc. more.

  Further, a sheet material 11a1 ″ shown in FIG. 7 includes a fiber layer 11a11 ″ made of a flexible fiber material, a water-repellent treatment layer 11a12 ″ provided on one surface side of the fiber layer 11a11 ″, It consists of a resin coating layer 11a13 "provided on the surface of the water repellent treatment layer 11a12".

The fiber layer 11a11 "is formed by cutting a flame retardant fabric having flexibility such as glass cloth or silica cloth.
Further, the water repellent layer 11a12 ″ may be any layer that prevents the resin material from penetrating into the fiber layer 11a11 ″ when a resin coating layer 11a13 ″ described later is formed. For example, a fluorine-based water repellent agent Is coated on the surface of the sheet material 11a1 ″.
Further, the resin coating layer 11a13 ″ is a synthetic resin layer such as urethane, and is coated on the surface of the water repellent treatment layer 11a12 ″.

  According to the above configuration, when the resin coating layer 11a13 ″ is coated, the water repellent treatment layer 11a12 ″ can prevent the resin to be coated from permeating into the sheet material 11a1. Therefore, the flexibility of the fiber layer 11a11 "is maintained.

The sheet material 11a1 "having the above-described configuration is used such that the resin coating layer 11a13" is on the outer peripheral surface side when wound on the winding body 20.
Therefore, when the flexible sheet portion 11 is wound around the winding body 20, the resin coating layer 11 a 13 ″ comes into contact with the support member 30.
Therefore, it is possible to prevent the sheet material 11a1 ″ constituting the flexible sheet portion 11 from being damaged due to friction with the support member 30 (or 30 ′).

According to the illustrated example, the water-repellent treatment layer 11a12 ″ and the resin coating layer 11a13 ″ are provided on only one surface of the fiber layer 11a11 ″. You may make it improve the abrasion resistance, durability, etc. of the part 11 more.
Further, by attaching the above-mentioned wear-resistant sheet 11a2 to one or both surfaces of the sheet material 11a1 ″, the wear resistance and durability of the flexible sheet portion 11 can be further improved. Is also possible.

It is a front view which shows an example of the switchgear concerning this invention. It is a longitudinal cross-sectional view which shows an example of the switchgear. It is a principal part top view which shows the sewing location of the flexible sheet | seat part in the same opening / closing apparatus, (a) shows the surface on the opposite side to a winding body, (b) shows the surface by the side of a winding body. It is principal part sectional drawing which shows the sewing location of the flexible sheet | seat part in the opening / closing apparatus. It is a longitudinal cross-sectional view which shows the other examples of the switchgear concerning this invention. It is a principal part longitudinal cross-sectional view which shows an example of the sheet material which comprises a flexible sheet | seat part. It is a principal part longitudinal cross-sectional view which shows the other examples of the sheet material which comprises a flexible sheet | seat part. In the conventional opening / closing apparatus, it is principal part sectional drawing which shows the sewing location of a flexible sheet | seat part.

DESCRIPTION OF SYMBOLS 10: Opening-closing body 11: Flexible sheet part 11a: Sheet | seat part structural member 11a1, 11a1 ', 11a1 ": Sheet material 11a2: Abrasion-resistant sheet 11a11": Fiber layer 11a12 ": Water-repellent treatment layer 11a13": Resin Coating layer 20: Winding body 30: Support member 41: Sewing part 41a, 42a: Annular part

Claims (6)

An opening / closing body having a flexible sheet portion; and a winding body that winds and unwinds the opening / closing body to open and close the flexible sheet portion, and the flexible sheet portion is continuously provided in the opening / closing body surface direction and sewn. In a switchgear composed of a plurality of sheet materials,
The adjacent sheet materials are overlapped on the end sides and sewn in a substantially linear shape across the opening / closing body opening / closing direction by ring stitching,
The ring-sewn sewing thread has an annular portion bent into an annular shape and a main-stitched portion passed through the annular portion, and the opening / closing body is wound around the winding portion. And arranged so that it is on the outer peripheral surface side, and the main stitch-shaped portion is inserted through the sheet material and passed to the inner peripheral surface side with respect to the outer peripheral surface side of the sheet material ,
The opening / closing body has a flexible sheet portion, and the flexible sheet portion has a plurality of sheet portion constituent members connected in the width direction of the opening / closing body, and is detachable between adjacent sheet portion constituting members. Connected by the wearing means, and at the connection point, form a deflection in the opening / closing body width direction so as to release the tension in the opening / closing body width direction,
Each of the sheet member constituting members is configured by sewing the plurality of sheet members connected in the width direction of the opening / closing body to the chain stitch . The winding body is configured by supporting and connecting a plurality of winding body constituent members disposed at predetermined intervals across the opening / closing body width direction by a shaft member,
2. The switchgear according to claim 1 , wherein the connection portion by the fastening means is bent so as to enter a space between the adjacent winding body constituting members . An opening / closing body having a flexible sheet portion; and a winding body that winds and unwinds the opening / closing body to open and close the flexible sheet portion, and the flexible sheet portion is continuously provided in the opening / closing body surface direction and sewn. In a switchgear composed of a plurality of sheet materials,
The adjacent sheet materials are overlapped on the end sides and sewn in a substantially linear shape across the opening / closing body opening / closing direction by ring stitching,
The ring-sewn sewing thread has an annular portion bent into an annular shape and a main-stitched portion passed through the annular portion, and the opening / closing body is wound around the winding portion. And arranged so that it is on the outer peripheral surface side, and the main stitch-shaped portion is inserted through the sheet material and passed to the inner peripheral surface side with respect to the outer peripheral surface side of the sheet material,
The winding sheet and the flexible sheet portion when wound around the winding body are rotatably received by a support member on the lower side,
The opening / closing device , wherein the support member is formed in a substantially C-shaped cross-section with a portion through which the flexible sheet portion is inserted notched . An opening / closing body having a flexible sheet portion; and a winding body that winds and unwinds the opening / closing body to open and close the flexible sheet portion, and the flexible sheet portion is continuously provided in the opening / closing body surface direction and sewn. In a switchgear composed of a plurality of sheet materials,
The adjacent sheet materials are overlapped on the end sides and sewn in a substantially linear shape across the opening / closing body opening / closing direction by ring stitching,
The ring-sewn sewing thread has an annular portion bent into an annular shape and a main-stitched portion passed through the annular portion, and the opening / closing body is wound around the winding portion. And arranged so that it is on the outer peripheral surface side, and the main stitch-shaped portion is inserted through the sheet material and passed to the inner peripheral surface side with respect to the outer peripheral surface side of the sheet material,
The winding sheet and the flexible sheet portion when wound around the winding body are rotatably received by a support member on the lower side,
The opening / closing apparatus , wherein the support member is disposed so as to receive a sewn portion by the chain stitch . The chain stitch is a double chain stitch using two sewing threads, and the annular portion is formed by one of the sewing threads, and the main stitch-shaped portion is formed by the other sewing thread. Item 5. The switchgear according to any one of items 1 to 4 . The switchgear according to any one of claims 1 to 4, wherein the chain stitch is a single ring stitch using a single thread .

Images