JP5015525B2 - Switchgear - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an opening / closing device in which an opening / closing body is extended or wound by a winding body, and more particularly to an opening / closing device suitable as a so-called screen shutter device including an opening / closing body having a flexible sheet portion. is there.

Conventionally, in this type of invention, a plurality of flexible sheet portions (flame retardant fireproof sheet bodies 14) are provided on the outer peripheral surface of the winding body (winding drum 7) as described in Patent Document 1. There is a fireproof screen mounting device which is fixed by a mounting screw (27).
If the mounting structure of the flexible sheet part (flame retardant fireproof sheet body 14) in this prior art is described in detail, the opening / closing body opening direction end part of the flexible sheet part (flame retardant fireproof sheet body 14) A plurality of communication holes (24) for penetrating the mounting screws (27) are formed in the width direction on the side, and a winding body (winding drum 7) is formed so as to correspond to these communication holes (24). A plurality of screw holes (18) are formed in each, and a mounting screw (27) is inserted into each communication hole (24), and the tip end side of the mounting screw (27) is the screw hole of the winding body (winding drum 7). (18) is screwed.

  By the way, in the past, the winding body having the above-described configuration was generally made of steel. However, in recent years, the winding body has been reduced in order to reduce the weight, facilitate forming, and improve the opening and closing speed. It may be made of a relatively lightweight aluminum alloy, and in particular, in the case of an opening / closing device having a relatively long dimension in the width direction of the opening / closing body, the winding body and the opening / closing body wound around the winding body are However, since the weight is considerably large, it is necessary to devise the winding body made of an aluminum alloy as described above.

However, in the above prior art, when the winding body (winding drum 7) is made of an aluminum alloy, since the aluminum alloy is generally easier to melt than the steel, an excessive temperature caused by a fire or the like. Due to the rise, the winding body made of the aluminum alloy is melted, and the open / close body may be dropped.
Japanese Patent Laid-Open No. 10-201869

  The present invention has been made in view of the above-described conventional circumstances, and the problem is that the winding body melts due to an excessive temperature rise caused by a fire or the like, and the opening / closing body falls. An object of the present invention is to provide an opening / closing device capable of preventing the above.

One means for solving the above problems is a substantially hollow winding body for winding and unwinding the opening / closing body, a core for supporting the winding body from the inside thereof , and fixing the opening / closing body. In the opening / closing apparatus provided with a fastening tool for rotating the winding body and the core, the opening / closing body is operated in an axial direction of the winding body on the inner peripheral surface of the winding body . A plurality of ribs projecting at predetermined intervals in the circumferential direction, and the core has a plurality of convex portions at predetermined intervals in the circumferential direction on the outer peripheral surface by a material having higher fire resistance than the winding body. While being formed in a concavo-convex shape, receiving the protruding end of the rib by the convex portion, the fastening device is inserted through the opening / closing body, and penetrates the winding body at a location corresponding to the rib, characterized in that the tip is secured to the convex portion of the core To.

The first embodiment includes a substantially hollow winding body that winds and unwinds the opening and closing body, and a core that supports the winding body from the inside thereof, and the winding body and the core are rotated. In the opening / closing device configured to operate the opening / closing body, the core is formed of a material having higher fire resistance than the winding body, and the opening / closing body is fixed to the core. .
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.

In addition, the opening / closing body includes an opening / closing body formed by connecting so-called slats in the opening / closing direction, an opening / closing body formed by arranging pipe members at predetermined intervals in the opening / closing direction, and a plurality of panel-like members connected in the opening / closing direction. Open / close bodies made of flexible sheet material, open / close bodies made by appropriately combining these slats, pipe materials, panel-like members, flexible sheet materials, etc. From the viewpoint of the above, it is preferably an opening / closing body made of a flexible sheet material.
The opening / closing body is not particularly limited to one having fire resistance. However, when the opening / closing device is applied as a fire-proof shutter device, it is preferable that the opening / closing body has fire resistance.

  The winding body may be formed in a substantially hollow shape, and may be configured to wind up the opening / closing body or to roll out the wound opening / closing body by rotating. The winding body includes an aspect configured in a substantially cylindrical shape such as a cylinder, an aspect configured in a substantially bowl shape, and the like.

Moreover, the said core should just be a member which is inherent in the said hollow winding body, and supports the said winding body from the inner side.
This core may be arranged over substantially the entire length in the axial direction of the winding body as a configuration consisting of a single long member, but from the viewpoint of weight reduction, etc. It is preferable to dispose a plurality of the winding bodies in the axial direction.

  Further, in the configuration “the core is formed of a material having higher fire resistance than the winding body”, the core is formed of a material having a melting point higher than that of the winding body. The aspect etc. which made fire resistance higher than the said winding body by covering these with incombustibles etc. are included.

  In addition, in the configuration that “the opening and closing body is fixed to the core”, a fastener such as a screw or a bolt is inserted through the peripheral wall of the opening and closing body and the winding body. A mode in which the distal end side of the fastening device is fastened to the core, or a convex portion is provided on the opening direction end side of the opening / closing body, and the convex portion is inserted into the peripheral wall of the winding body. A mode in which the core is fixed, a peripheral window of the winding body is provided with a through window, a notch, etc., and a part of the opening / closing body is inserted into the through window, the notch, etc. It includes an embodiment that is fixed to the core.

Moreover, the 2nd form formed the said core with the metal material whose melting | fusing point is higher than the said winding body .

According to a third aspect , the opening / closing body has a flexible sheet portion at least on the opening direction side thereof, and the flexible sheet portion is formed of a rigid material on the opening direction end portion side. A fastening member that extends integrally with the flexible sheet portion in the width direction of the opening and closing body is provided, and the fastening tool is inserted through the fastening member and the winding body, and the tip of the fastening tool is fastened to the core. In the opening / closing device to be worn, a recess extending in the axial direction is provided on the outer peripheral surface of the winding body, and the fastening member is fitted into the recess .

Here, the flexible sheet portion is preferably formed of a material having fire resistance (including flame retardancy and nonflammability) and a melting point higher than that of the winding body. Examples include flame retardant fabrics such as glass cloth and silica cloth, vinyl chloride resin sheet materials treated with fluorine, synthetic resin sheet materials containing glass fibers, and fire resistance such as flame retardancy or incombustibility. Other flexible sheet materials can be used.
In addition, although the material of this flexible sheet | seat contains synthetic resin material, cloth, etc., when considering fire resistance especially, it processes so that it may have the above-mentioned fire resistance material or fire resistance. It is preferable that the material has a higher melting point than that of the wound body.

Further, the third embodiment is also an independent invention is not dependent on the first or second any one embodiment, in which advantageous effects of the third aspect you later.
That is, in this independent invention, in the opening / closing apparatus provided with a winding body that winds or unwinds the opening / closing body, and operating the opening / closing body by rotating the winding body, the opening / closing body includes: A fastening member extending in the width direction of the opening / closing body is integrally provided on the end portion side in the opening direction, a concave portion extending in the axial direction is provided on the outer peripheral surface of the winding body, and the fastening member is fitted into the concave portion. It is characterized by being adapted.

Here, the material of the fastening member includes a metal material, ceramic, hard synthetic resin material, wood, stone, etc., especially when considering fire resistance (including flame retardancy and nonflammability). Is preferably a metal material, ceramic, or the like, and more preferably a material having a melting point higher than that of the wound body.
Moreover, the said fastening member may be provided over the full length with respect to the winding body, and may be provided partially.
Further, the fastening member may be a single member or a plurality of members disposed in the opening / closing body width direction.
Further, in the structure in which the fastening member is integrally provided on the flexible sheet portion, for example, a bag-like portion is formed in the flexible sheet portion, and the fastening member is inserted through the portion. A mode in which the fastening member is bonded or screwed to the flexible sheet portion, a mode in which the fastening member is wrapped in the flexible sheet portion, and the like.

The fastening device may be any member that is inserted into the flexible sheet portion and fastened to the winding body or the core, and specific examples thereof include screws, bolts, rivets, staples, and the like. .
In addition, when considering the fire resistance (including flame retardancy and incombustibility), the material of the fastening device is preferably a material having fire resistance such as a steel material or a stainless steel material. Is preferably a material having a melting point higher than that of the wound body.

  In addition, the recess is preferably a recess having a depth such that the fitted fastening member does not protrude from the outer peripheral surface of the winding body, but the attached fastening member is the winding member. It is also possible to set it as the recessed part formed so that it might protrude from the outer peripheral surface of a body.

In the fourth embodiment , the fastening member is fastened to the peripheral wall of the winding body by a plurality of fastening tools arranged in the axial direction of the winding body. The core is fixed to the core by a plurality of fasteners arranged in the circumferential direction of the winding body .

In the fifth embodiment , the opening / closing body is in a closed state in which the end portion in the closing direction is in contact with the contact target site, and the portion on the opening direction side is at least one turn more than the winding body. that has been.

Here, the “extra-wound” means that the end of the opening / closing body in the closing direction is in a closed state in which the end of the opening / closing body is in contact with a contact target portion (for example, a floor surface, the ground, a frame member, etc. It means that it has a part of the opening / closing body that is left unrolled around the winding body without being drawn out from the body.
This extra winding portion may be made of a material having no fire resistance, but is preferably made of a material having fire resistance. According to this preferable configuration, it is possible to prevent the flame during fire or the like from coming into direct contact with the winding body by the extra winding portion having fire resistance, and as a result, the winding body is melted due to excessive temperature rise. This can be prevented more effectively.

In the sixth embodiment , the substantially hollow winding member constituting member is supported from the inside by the core, and a plurality of fasteners penetrating the winding member constituting member are used as the inner core. By fixing, the winding member constituting member and the core are integrated, and a plurality of the integrated winding member constituting members and cores are provided in the axial direction, and in the adjacent winding member constituting members. The winding body is configured by connecting the cores with a shaft member, and the winding body is rotatably received by a plurality of support members disposed in the opening / closing body width direction on the lower side. In the opening and closing device, the winding member constituting member is provided with a plurality of through holes for penetrating the fastening device in the circumferential direction, and a part of the plurality of through holes is Ru long hole der to allow moving the fastening member to the winding body axis direction.

Here, the support member may be a member that receives the winding body so as to be able to rotate, and the support member is configured to slide the winding body and the member that receives the winding body so as to slide. In this way, the roller is received.
Further, the long hole may be a substantially elliptical long hole, or may be a substantially rectangular long hole.
In addition, the configuration of “the long hole that allows the fastener to move in the axial direction of the winding body” specifically means that the dimension of the long hole in the axial direction of the winding body is the same as the direction of the fastening tool. It may be larger than the dimension of

  The through holes other than the long holes are round holes that make the fastening device immovable in the winder axis direction, and the number of the long holes is larger than the number of the round holes. .

In the above embodiment , as described above, the core is formed of a material having higher fire resistance than the winding body. However, the opening / closing body, the fastening member, and the fastening tool are also provided. However, it is preferable to be formed of a material having higher fire resistance than the winding body. According to these configurations, even if the winding body is melted, the opening / closing body is more likely to fall. Can be effectively prevented.

In the present specification, the “opening / closing body width direction” means a direction substantially orthogonal 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 , for example, even if the winding body is melted due to an excessive temperature rise caused by a fire or the like, the opening / closing body is fixed to the core having higher fire resistance than the winding body. Therefore, it can prevent that the opening-closing body falls.

Furthermore, according to the second embodiment , it is possible to provide a specific mode in which the core is made of a material having higher fire resistance than the winding body, and it is possible to prevent the opening / closing body from falling due to thermal melting of the winding body. it can.

Furthermore, according to the third embodiment , since the fastening member integral with the flexible sheet portion of the opening / closing body is fitted to the recess of the outer peripheral surface of the winding body, this fitting structure also allows The fastening member and the opening / closing body can be prevented from falling off.
That is, for example, in the structure in which the fastening member is fastened to the outer peripheral surface of the cylindrical winding body with a screw or the like, when the periphery of the screw in the winding body is partially melted, the fastening member and the open / close Although the body may fall off, according to this embodiment , since the fastening member is fitted in the recess on the outer peripheral surface of the winding body, the partial melting of the winding body as described above is There is a high possibility that the landing member and the opening / closing body will not fall off.
In addition, since the protrusion of the fastening member from the outer peripheral surface of the winding body can be reduced by the recess, the outer diameter (in other words, the winding diameter) of the opening / closing body wound around the winding body is larger than that of the fastening member. It is possible to prevent the outer diameter of the opening / closing body wound around the winding body from being eccentric and applying a biased load to the support structure of the winding body or increasing vibration during rotation. .

Further, according to the fourth embodiment , during normal use, the fastening member is firmly fixed to the outer peripheral surface side of the winding body while suppressing the bending of the fastening member by a plurality of fastening devices extending in the opening / closing body width direction. If the temperature rises excessively due to a fire or the like, even if the winder is melted, the fastening member is placed in the core over the winder circumferential direction. The fastening member and the opening / closing body can be prevented from falling by the plurality of fastening devices that are fastened.

Further, according to the fifth embodiment , the open / close body is wound in the closed state in which the end in the closing direction is in contact with the contact target portion, and the extra winding portion of the open / close body is wound around the winding body at least once. Therefore, it is possible to effectively prevent the opening / closing body from falling off.

Further, according to the sixth embodiment , even when the opening / closing body is wound around the winding body and a thick portion of the winding is biased in the width direction of the opening / closing body, adjacent winding body constituting members are formed by the action of the long holes. Since it deform | transforms so that a space | interval may be bent, it can prevent applying the load which is biased to some of the several supporting members below a winding body.
In other words, if the winding member constituting member and the core are integrated by a fastening tool that penetrates only the round hole, winding thick portions that are biased in the opening / closing body width direction are generated around the winding body. In this case, a relatively large load is applied to the support member close to the thickened portion of the winding, and a load smaller than the load is applied to the other support member, which may cause a bias in the load applied to the support member in the opening / closing body width direction. is there.
However, in the sixth embodiment , the core is slightly movable in the winder axis direction at the position of the long hole with respect to the winder member, so that the two adjacent winder members are bent. Deforms flexibly. Therefore, the load is distributed to the support member close to the thickened portion and the other support members.

Furthermore, according to the seventh embodiment, it is possible to more effectively prevent a biased load from being applied to a part of the plurality of support members on the lower side of the winding body .

Next, a specific example of the above embodiment will be described with reference to the drawings.
Examples of the following are the opening parts of construction / structures such as houses, buildings, warehouses, factories, underground malls, tunnels, loading platforms of vehicles, etc., arranged inside the construction / structures, opening and closing the opening parts, 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 1 includes an opening / closing body 10 having a flexible sheet portion 11, a substantially hollow winding body 20 that winds and unwinds the opening / closing body 10, and both ends of the opening / closing body 10 in the width direction. A guide rail (not shown) that guides in the opening and closing direction at the portion, the winding body 20 is supported by the core 23 from the inside, and the winding body 20 and the core 23 are rotated to rotate the winding body 20 and the core 23. The opening / closing body 10 is configured to open and close.

  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. , And a seat plate member 15 (see FIG. 3) provided at the end of the flexible sheet portion 11 on the opening / closing body closing direction side.

  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 to a plurality of winding member constituting members 21 constituting a winding body 20 described later, respectively. The sheet member constituting members 11a are connected to each other 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 connecting portion.

Each sheet part constituting member 11a is made of, for example, a flame retardant fabric such as glass cloth or silica cloth, a vinyl chloride resin sheet material subjected to fluorine processing, a synthetic resin sheet material containing glass fiber, or the like, which is flame retardant or incombustible. It consists of a flexible sheet material having fire resistance such as property.
The sheet portion constituting member 11a may be formed by sewing a plurality of substantially rectangular belt-like sheet materials so as to be connected to each other, or may be formed by cutting one sheet material into a substantially rectangular shape.
At the end of each seat part constituting member 11a on the opening / closing body opening direction side, the fastening member 12 is inserted in the opening / closing body width direction so as to be formed in a substantially bag shape in the longitudinal section.

The adjacent sheet portion constituting members 11 a and 11 a are overlapped at the end portions in the width direction, and the overlapping portion 11 a 1 is fixed by the fixing means 13.
The overlapping portion 11a1 is appropriately bent so as to enter a space portion between 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 11a1. As a result, damage or the like of 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 in a substantially bag-shaped portion in the longitudinal section on the opening / closing body opening direction side of each of the sheet member constituting members 11a.
The fastening member 12 is a rod-like member having substantially the same length as the winding member constituting member 21 of the winding body 20, and according to a preferred example illustrated, the fastening member 12 is a member having a rectangular cross-section in the longitudinal section.
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 supports and connects a plurality of winding body constituting members 21 arranged at predetermined intervals across the opening / closing body width direction by the core 23 and the shaft member 22 from the inside thereof. It is composed of that.

The winding member constituting member 21 is a substantially cylindrical member made of a relatively lightweight metal material, and a concave portion 21a for fitting the fastening member 12 is provided on the outer peripheral surface of the winding member constituting member 21. It is formed over the axial direction.
Further, a plurality of ribs 21b (see FIG. 3) extending in the axial direction of the winding body are provided on the inner peripheral surface of the winding body constituting member 21 at predetermined intervals in the circumferential direction. The ribs 21b are reinforcing members that suppress the bending of the winding member constituting member 21 in the axial direction. According to the illustrated example, three ribs 21b are provided at intervals of about 120 degrees.
The material of the winding member constituting member 21 is preferably a lightweight metal material such as an aluminum alloy, for example, in order to reduce the weight of the entire winding body 20.

Moreover, the core 23 is arrange | positioned at the both ends of the axial direction of each winding body structural member 21, and is fitted by the internal peripheral surface of each winding body structural member 21. As shown in FIG.
The core 23 is formed of a material having higher fire resistance than the winding body constituting member 21 of the winding body 20, more specifically, a metal material having a melting point higher than that of the winding body constituting member 21. .
For example, when the winding member constituting member 21 is formed of an aluminum alloy, the material of the core 23 is a metal material having a melting point higher than that of the aluminum alloy, such as a steel material or a stainless steel material.

Further, as shown in FIG. 2, the core 23 is formed in a substantially cylindrical shape having an outer peripheral surface formed in an uneven shape, and the above-described winding body configuration among the plurality of convex portions 23a and 23b on the outer peripheral surface. The protrusion 23a corresponding to the recess 21a of the member 21 has a smaller protrusion than the other protrusion 23b.
That is, since the part corresponding to the recess 21a protrudes toward the center of the winder member 21 in the winder member 21, the amount of protrusion of the convex part 23a to be brought into contact with the protrusion is determined as described above. Thus, it is made smaller than the other convex part 23b.
In addition, the code | symbol 23c in a figure is a through-hole for reducing the core 23, and two or more are provided in the appropriate location of the core 23. FIG.

Further, each shaft member 22 is disposed between the adjacent winding body constituting members 21 and 21, and is inserted into and fixed to the adjacent cores 23 and 23 between these winding body constituting members 21 and 21. .
The material of the shaft member 22 is also preferably a steel material, a stainless material, or the like from the viewpoint of strength, fire resistance, and the like.

The winding body 20 having the above-described configuration is rotatably received by a pair of rollers 24a and 24b (see FIG. 3) which are support members disposed on the lower side of the winding body 20 in the opening / closing body width direction. It rotates in the forward and reverse directions by a driving source (not shown) (for example, an electric motor, an air motor, a manual rotation mechanism, etc.) provided on the axial end side.
The pair of rollers 24 a and 24 b includes a virtual straight line connecting the center of one roller 24 a and the center of the winding body 20, and a virtual straight line connecting the center of the other roller 24 b and the center of the winding body 20. Is supported by a bearing bracket or the like so that the angle θ is approximately 60 degrees. The angle is a suitable value that can prevent the winding body 20 from falling off the pair of rollers 24a and 24b and can reduce the load acting on the rollers 24a and 24b.
The pair of rollers 24a and 24b may be omitted, and both ends of the winding body 20 including the plurality of winding body constituting members 21 may be rotatably supported by bearing members.
Further, a structure is provided in which the pair of rollers 24a and 24b is replaced with a support member that receives each winding member constituting member 21 from the lower side thereof, and each winding member constituting member 21 is rotated by sliding on the supporting member. It is also possible.

Next, the fastening structure of the opening / closing body 10 with respect to the winding body 20 will be described in detail.
In the opening / closing body 10 having the above-described configuration, the fastening member 12 portion of each flexible sheet portion 11 is fitted into the recess 21a of the corresponding winding body constituting member 21, and a plurality of fastening devices 14 (for example, steel materials) are fitted. Or a fire-resistant screw or bolt made of stainless steel or the like (see FIG. 3).
According to the concave portion 21a, it is possible to reduce the winding thickness of the sheet portion constituting member 11a wound around the winder constituting member 21, and the sheet portion is caused by friction with a pair of rollers 24a and 24b described later. The fear that the constituent member 11a is worn or damaged can be reduced.

  As shown in FIG. 1, a plurality of the fasteners 14 are arranged at predetermined intervals across the axial direction of each winding member constituting member 21 at a location that does not correspond to the core 23 in the axial direction of the winding body 20. Is done. Each fastening tool 14 passes through the sheet member constituting member 11 a and the fastening member 12, and the tip thereof is fastened to the peripheral wall of the winding member constituting member 21.

Further, as shown in FIG. 3, a plurality of the fasteners 14 are arranged in the circumferential direction of the winding body with respect to the fastening member 12 at a portion corresponding to the core 23 in the axial direction of the winding body 20 (see FIG. 3). According to the illustrated example, two) are disposed, and each fastening tool 14 penetrates through the sheet part constituting member 11a and the fastening member 12, and its tip is fastened to the convex part 23a of the core 23.
According to this configuration, even if the opening / closing body 10 is excessively heated and melted due to, for example, a fire or the like, the opening / closing body 10 and the fastening member 12 are fastened to the core 23 by the fastening tool 14. Therefore, the opening / closing body 10 and the fastening member 12 can be prevented from falling.

  Further, the fastener 14 penetrates the winding body constituting member 21 at a position corresponding to the rib 21 b of the winding body constituting member 21, and its tip is fastened to the other convex portion 23 b of the core 23. As a result, the winding member constituting member 21 and the core 23 are integrated.

Then, as described above, the opening / closing body 10 secured to the winding body 20 by the plurality of fastening devices 14 contacts the seat plate member 15 to the contact target portion p (for example, a floor surface, the ground, a frame member, or the like). As shown in FIG. 3, at least about one turn or more is wound around the wound body 20.
According to the said structure, even if the opening / closing body 10 is drawn out from the winding body 20 and the opening / closing body 10 is fully closed (state shown in FIG. 3), the flame retardant around the winding body 20. Since the flexible sheet portion 11 is wound at least once or more, the outer circumferential surface of the winding body 20 is in direct contact with the flame generated by a fire or the like by the extra winding portion x, and the winding body constituting member 21 can prevent the temperature from rising excessively.

Moreover, according to the example of illustration, the range of the said extra winding part x is the range of about 1 round, ie, an angle of 360 degree | times, and the opening of the recessed part 21a in each winding body structural member 21 becomes a substantially horizontal direction.
Therefore, even if the fastening device 14 for fastening the fastening member 12 for some reason is loosened and pulled out, the fastening member 12 is pushed into the recess 21a while being pushed by the surrounding flexible sheet portion 11. Retained. That is, it is possible to prevent the fastening member 12 from falling due to the withdrawal of the fastening tool 14 or the like.

  The range of the extra winding portion x is set to an angle of about 360 degrees (about one turn) as described above in the illustration of FIG. 3, but in order to more effectively prevent the fastening member 12 from falling, It is preferable that the range be larger than 360 (about one round) and smaller than an angle of 540 degrees (about one half). According to this configuration, when the opening / closing body 10 is substantially fully closed, the opening of the recess 21a is positioned obliquely upward, upward, and the like, so that the fixing member 12 can be prevented from falling more effectively. it can.

Further, according to the above-described embodiment, the end of the opening / closing body 10 on the opening direction side is formed in a substantially bag-like cross section, and the fastening member 12 is included in the bag-like portion. It is also possible to replace the structure of the switching device 2 shown in FIG.
In the opening / closing device 2 shown in FIG. 4, first, at least one turn of the opening-side portion of the opening / closing body 10 is wound around the outer peripheral surface of the winding body constituting member 21, and then the winding body constituting member 21 is wound. The fastening member 12 is fitted from the outer side of the wound opening / closing body 10, and the fastening member 12 is connected to the core 23 and the winding body 20 (more specifically, the winding body by a plurality of fastening tools 14. It is adapted to be fixed to the component 21).
According to this aspect, the excessive temperature rise of the winding body 20 due to a flame such as a fire can be prevented by the extra winding portion x, and the fastening member 12 is disposed on the opening / closing body 10 opening direction side. It is not necessary to carry out a substantially bag-like process for making the material contained, and the productivity is good.

  In addition, according to the example shown in FIG.3 and FIG.4, although the preferable aspect which has the surplus winding part x is shown, it is also possible to set it as the aspect which excluded the surplus winding part x.

Further, in the opening / closing device 3 shown in FIG. 5, adjacent winding member constituting members 21 ′ are formed by forming a part of the through hole through which the fastener 14 is penetrated in the winding member constituting member 21 ′ as a long hole 21 d ′. , 21 'are slightly bent and deformed.
More specifically, the opening / closing device 3 includes an opening / closing body 10 ′ having a flexible sheet portion 11, a substantially hollow winding body 20 ′ for winding and unwinding the opening / closing body 10 ′, and A guide rail (not shown) for guiding the opening / closing body 10 'in the opening / closing direction at both ends in the width direction is provided, and the winding body 20' is supported by a core 23 'from the inside thereof.

In the opening / closing body 10 ′, the fastening member 12 is omitted from the opening / closing body 10 of the opening / closing device 1 shown in FIG. 1 described above, and the opening side end portion of the flexible sheet portion 11 is directly attached by the fastening tool 14. Are fastened to the winding body 20 'and the core 23'.
The flexible sheet portion 11 and the seat plate member 15 are configured in substantially the same manner as that of the opening / closing device 1 shown in FIG.

  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 from the inner side to the core 23 ′ and the shaft members 22, 22 ′. It is comprised by supporting and connecting by.

Each of the winding member constituting members 21 ′ is a substantially cylindrical member made of a relatively lightweight metal material, and has a round hole 21c ′ and a long hole 21d ′ for allowing the fastener 14 to pass through the peripheral wall thereof.
In addition, in this winding body structural member 21 ', since the said fastening member 12 is not used, the recessed part 21a in the winding body 20 shown in FIG. 4 is not provided.

According to the example shown in FIG. 5, the round hole 21 c ′ is provided only at one place in the circumferential direction of the winding member constituting member 21 ′. In addition, two long holes 21d ′ are provided on the circumference where the round holes 21c ′ are arranged.
The round holes 21c ′ and the long holes 21d ′ and 21d ′ are arranged substantially equally in the circumferential direction so as to correspond to every other six convex portions 23a ′ around the core 23 ′.
In a preferred example shown in FIG. 5, a hole for penetrating the fastening device 14 is used as a round hole 21 c ′ in order to fasten the opening / closing body 10 ′ to the winding member constituting member 21 ′ and the core 23 ′. The hole is a long hole 21d '.

Further, an elastic sheet 25 is wound around the outer peripheral surface of each winding member constituting member 21 ′ so as to be received by a pair of rollers 24a and 24b which are support members.
The elastic sheet 25 is a substantially belt-like sheet made of a synthetic resin material having elasticity. According to the example shown in FIG. 6, the fastening points by the fastening tool 14 are provided on both sides of the winding member constituting member 21 ′. It arrange | positions so that it may avoid and is being fixed to the outer peripheral surface of winding body structural member 21 '.
A specific example of the material of the elastic sheet 25 is a felt-like non-woven fabric (more specifically, for example, a non-woven fabric made of synthetic fiber or natural fiber such as polyester, polypropylene, rayon, or cotton). For example, a carpet material or a rubber sheet material may be used.
Furthermore, as another example of the material of the elastic sheet 25, a sheet material made of a sponge material, leather, or the like can be used.

Further, the core 23 'has an outer peripheral surface that is uneven by a material having higher fire resistance than the winding member constituting member 21' of the winding member 20 ', for example, a metal material having a melting point higher than that of the winding member constituting member 21'. It is formed in a substantially cylindrical shape, and the inner peripheral surface of the winding member constituting member 21 ′ is received by a plurality (six in the illustrated example) of convex portions 23a ′ on the outer peripheral surface.
The core 23 'is formed in a hollow shape for weight reduction, but may be solid like the core 23 shown in FIG. Conversely, the core 23 shown in FIG. 4 may be hollow.

As shown in FIG. 6, a plurality of the winding body constituting members 21 ′ having the above-described configuration are arranged in the opening / closing body width direction, and the adjacent winding body constituting members 21 ′, 21 ′ 22 ').
The number of winding member constituting members 21 ′ is appropriately set according to the length of the opening / closing body 10 ′ in the width direction.

The shaft member 22 ′ is a shaft member that is slightly thicker than the shaft member 22, and the winding member constituting members 21 ′ adjacent to each other on the center side among the plurality of winding member constituting members 21 ′ connected in series. 21 '.
That is, the thick shaft member 22 ′ is disposed on the center side of the winding body 20 that is most easily loaded.
The shaft member 22 ′ has one end connected to the core 23 ′ in one winding member constituting member 21 ′ and the other end connected to the core in the other winding member constituting member 21 ′. 23 '.

Thus, according to the opening / closing device 3 shown in FIG. 5 and FIG. 6, even when the opening / closing body 10 ′ is wound around the winding body 20 ′ and uneven winding thick portions occur in the opening / closing body width direction, At the position of the long hole 21d ′, the fastening device 14 is slightly moved in the opening / closing body width direction with respect to the winding body constituting member 21 ′, that is, the core 23 ′ is partially opened / closed with respect to the winding body constituting member 21 ′. Since it moves slightly in the width direction, it is flexibly deformed so that the adjacent winding member constituting members 21 ′ and 21 ′ are bent.
Therefore, it is possible to prevent the load from being biased to some of the rollers 24a and 24b provided in a plurality of pairs in the opening / closing body width direction on the lower side of the winding body 20.
That is, the load of the winding body 20 is appropriately distributed to the plurality of pairs of rollers 24a and 24b due to flexible deformation between the adjacent winding body constituting members 21 ′ and 21 ′.
Moreover, when the opening / closing body 10 ′ is wound around the winding body 20 ′, the elastic sheet 25 is interposed between the winding body 20 ′ and the surrounding opening / closing body 10 ′. Due to the elasticity, the pressing force applied to the contact surface between the opening / closing body 10 ′ and the pair of rollers 24a, 24b can be dispersed. As a result, the opening / closing body 10 ′ can be locally contacted with the pair of rollers 24a, 24b. This can prevent damage.

  In the example shown in FIG. 5, the round hole 21 c ′ is a hole for fixing the opening / closing body 10 ′ with the fastening tool 14, and the long hole 21 d ′ is connected with the winding body constituting member 21 ′ with the fastening tool 14. Although it is a hole for fixing the core 23 ', as another example, it is possible to adopt a mode in which the round hole 21c' and the long hole 21d 'are used in reverse.

  Further, in the example shown in FIG. 5, the number of the long holes 21d ′ is larger than the number of the round holes 21c ′ in the circumferential direction so that the adjacent winding member constituting members 21 ′ and 21 ′ bend appropriately. However, as another example, the number of the round holes 21c ′ and the long holes 21d ′ can be made equal, or the number of the long holes 21d ′ can be made smaller than the number of the round holes 21c ′.

  Further, in the example shown in FIG. 5, the extra winding portion x in the aspect shown in FIG. 3 is not provided, but the extra winding portion x may be provided.

Moreover, the elastic sheet 25 in the aspect shown in FIG.5 and FIG.6 is also applicable to the aspect shown in FIG. 3 or FIG.
In this case, at a portion where the elastic sheet 25 and the fastening member 12 overlap, a part of the elastic sheet 25 is located inside the fastening member 12, that is, between the fastening member 12 and the recess of the winding body constituting member 21. It may be positioned, may be positioned outside the fixing member 12 so as to cover the fixing member 12 and the winding member constituting member 21, or one end side in the circumferential direction of the elastic sheet 25 is stopped. While being located between the attaching member 12 and the recess of the winding member constituting member 21, the other end side may cover the outside of the fastening member 12.

Moreover, as a structure added to the aspect shown in FIG.5 and FIG.6, in the location of the round hole 21c 'for fixing opening-closing body 10', the inner peripheral surface and core 23 'of winding-body structural member 21' are attached. A long plate material (not shown) made of a metal material having a melting point higher than that of the winding member constituting member 21 ′ and extending between the adjacent cores 23 ′ and 23 ′ is disposed between the outer peripheral surface of the winding member constituting member 21 ′. Further, the fastener 14 penetrated through the opening / closing body 10 ′ and the winding body constituting member 21 ′ may be fastened to the plate member and the core 23 ′.
According to this configuration, the fastening strength of the opening / closing body 10 can be further improved, and the opening / closing body 10 can be more effectively prevented from dropping due to the thermal melting of the winding member constituting member 21 ′.

3 to 5, the pair of rollers 24a and 24b cannot be moved in the opening / closing body thickness direction (left and right direction in FIGS. 3 to 5), but the pair of rollers 24a and 24b By supporting as in the mode shown in FIG. 7, it is possible to adopt a configuration in which the position can be adjusted in the opening / closing body thickness direction.
A pair of rollers 24a and 24b shown in FIG. 7 is rotatably supported by a bracket 24c.
The bracket 24c has attachment pieces 24c1 and 24c1 on both sides of the bottom surface of the bracket 24c in the opening / closing body width direction. Each attachment piece 24c1 has a long hole 24c11 that is long in the opening / closing body thickness direction.
The bracket 24c is placed on the base material 26, which is an immobile part on the lower side thereof, and is fixed to the base material 26 with a fastener 24c12 such as a screw or a bolt inserted through the long hole 24c11.
According to the aspect shown in FIG. 7, the fastening tool 24c12 can be loosened to adjust the positions of the bracket 24c and the pair of rollers 24a, 24b in the opening / closing body thickness direction.
Accordingly, the rollers 24a and 24b provided in a plurality of pairs in the opening / closing body width direction on the lower side of the winding body 20 are not in contact with the outer peripheral surface of the winding body 20 due to the variation in the opening / closing body thickness direction position. (Or 24b) can be prevented, and as a result, the contact pressure between each roller 24a (or 24b) and the outer peripheral surface of the winding body 20 can be equalized.

  In addition, according to the example of illustration, although it has set as the structure which fixes the bracket 24c after position adjustment with respect to the base material 26 with the fastening tool 24c12, as another preferable aspect, the bracket 24c is the opening-closing body with respect to the base material 26. It may be fastened so as to be movable in the thickness direction, and according to this aspect, depending on the state of the opening / closing body 10 (or 10 ′) wound around the winding body 20 (or 20 ′), The bracket 24c can be finely moved in the opening / closing body thickness direction, so that the load applied to each roller 24a (or 24b) can be further equalized.

It is a principal part cross-sectional view which shows an example of the switchgear concerning this invention. It is a perspective view which shows the connection structure of a winding body structural member in the switchgear. It is a principal part longitudinal cross-sectional view in the switchgear. It is a principal part 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 the other examples of the switchgear concerning this invention. It is a principal part front view which shows the opening / closing apparatus shown in FIG. It is a perspective view which shows the other example of a roller support structure.

DESCRIPTION OF SYMBOLS 10: Opening-closing body 11: Flexible sheet part 11a: Sheet | seat part structural member 12: Fastening member 14: Fastening tool 20: Winding body 21: Winding body structural member 23: Core

Claims (4)

A substantially hollow winding body that winds and unwinds the opening / closing body, a core that supports the winding body from the inside thereof, and a fastening device that fastens the opening / closing body. In an opening and closing device adapted to operate the opening and closing body by rotating the body and the core,
On the inner peripheral surface of the winding body, a plurality of ribs extending in the axial direction of the winding body are provided protruding at predetermined intervals in the circumferential direction,
The core is a material having a high fire resistance than the winding body is formed in a concavo-convex shape having a plurality of projections on every predetermined intervals in the circumferential direction on the outer peripheral surface, the protruding end of the rib by the protrusion Receive
The fastening tool is inserted through the opening / closing body, penetrates the winding body at a location corresponding to the rib, and a tip thereof is fastened to the convex portion of the core. Opening and closing device. The opening / closing body has a flexible sheet portion at least on the opening direction side, and is made of a rigid material at a portion on the opening direction end portion side of the flexible sheet portion, and integrally with the flexible sheet portion. A fastening member extending in the width direction of the opening / closing body is provided, and the fastening tool is inserted into the fastening member and the winding body so that the tip of the fastening tool is fastened to the convex portion of the core. The opening and closing device
A recess extending in the axial direction is provided on the outer peripheral surface of the winding body, and the fastening member is fitted into the recess,
The said core is making the protrusion amount of the convex part corresponding to the said recessed part of the said winding body among these several convex parts smaller than another convex part . Switchgear. The opening / closing body is in a closed state in which the end portion in the closing direction is brought into contact with the contact target site, and the portion on the opening direction side is wound around the winding body,
By setting the range of the extra winding portion to be a range of about one or more rounds and smaller than about one and a half rounds, when the opening / closing body is substantially fully closed, the opening of the concave portion is inclined upward or upward. The switchgear according to claim 2 , wherein the switchgear is positioned. By supporting the substantially hollow winding member constituting member from the inner side by the core, and fixing the plurality of fasteners penetrating the winding member constituting member to the inner core, These winding body constituent members and the core are integrated, and a plurality of the integrated winding body constituent members and cores are provided in the axial direction, and the cores in the adjacent winding body constituent members are pivoted. It is an opening / closing device configured such that the winding body is configured by being connected by a member, and the winding body is rotatably received by a plurality of support members arranged in the opening / closing body width direction on the lower side. And
The winding member constituting member is provided with a plurality of through-holes through the fastening device in the circumferential direction,
A part of the plurality of through-holes is a long hole that allows the fastener to move in the direction of the winding body axis, so that the adjacent winding body constituting members are bent slightly. The switchgear according to any one of claims 1 to 3 , wherein the switchgear is configured as described above.

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