JP2017089221A - Opening/closing body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing body structure capable of extending service life of the opening/closing body.SOLUTION: An opening/closing structure includes: a winding shaft 17 for winding a shutter curtain 11; an engaging linear bulge 35 formed on an edge part 29 on both sides of the shutter curtain 11 in a width direction, to be engaged with a guide rail and supporting the edge part 29 movably along the guide rail; a wound inner side protruded member 19 provided on a wound inner surface 37 of the edge part 29 in a direction of extension of the edge part 29; and a wound outer side protruded member 21 provided on a wound outer surface 41 of the edge part 29 in the direction of extension of the edge part 29 and at a position deviating in a width direction of the shutter curtain 11 relative to the wound inner side protruded member 19, for regulating deviation in winding of the shutter curtain 11 in the width direction, by coming into contact with the wound inner side protruded member 19 of the edge part 29 wound and overlapped on outside in the width direction of the shutter curtain 11.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a structure of an opening / closing body such as a shutter curtain wound around a winding shaft.

  A shutter curtain, which is an opening / closing body, opens and closes a building opening by being wound and fed by a winding shaft. At this time, the edges on both sides in the width direction of the shutter curtain are guided by guide rails fixed to the left and right sides of the building opening. The shutter curtain is provided with a retaining member that engages with the guide rail and regulates the removal of the edge from the guide rail at the edges on both sides in the width direction. The retaining member is a member having a thickness greater than that of the shutter curtain when the shutter curtain is formed of a thin material such as a sheet. For example, Patent Document 1 discloses, for example, a fastener tooth row of a fastener as the retaining member. Patent Document 2 discloses a longitudinal retaining wire that is inserted into the insertion portion of the screen body and provided as the retaining member. Patent Document 3 discloses a retaining member for a screen (bolt nut) that prevents the member from coming off from a guide body (guide rail) as the retaining member.

JP 2013-87495 A JP 2005-126984 A JP-A-2005-282166

  However, when the sheet-shaped shutter curtain is wound around the winding shaft when the building opening is opened, a thick retaining member overlaps and the portion is wound thickly. As a result, the shutter curtain is liable to generate a so-called winding flow in which the edge portion is spiral or one edge portion is shifted to a bamboo shoot state, and the winding shape may not be stable. Further, when a winding flow occurs in the shutter curtain, the length in the width direction, which is the length in the axial direction of the wound wound body, becomes larger than the width of the shutter curtain. For this reason, the position of the edge part of the shutter curtain is shifted with respect to the position where the guide rail is arranged, and there is a possibility that a guide failure of the guide rail occurs and a descent operation failure occurs. And if a part of the shutter curtain is wound thickly or a winding flow is generated, wrinkles will occur in the sheet-like shutter curtain body, detracting from the aesthetic appearance of the smooth sheet-like surface, and dirt on the wrinkle part. If the residual strain due to adhesion or plastic deformation accumulates, the life may be shortened.

  The present invention has been made in view of the above situation, and the object thereof is to prevent winding slippage, prevent wrinkles, etc., and extend the life of the opening / closing body when winding the opening / closing body, which is a shutter curtain. It is in providing the structure of an opening-closing body.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The structure of the opening / closing body according to claim 1 of the present invention includes a winding shaft 17 for winding the opening / closing body 11,
A retaining member 35 provided on the edge 29 on both sides in the width direction of the opening / closing body 11 to engage with the guide rail 25 and support the edge 29 movably on the guide rail 25;
A winding inner side convex member 19 provided on the winding inner surface 37 of the edge portion 29 along the extending direction of the edge portion 29;
The edge that is provided on the outer winding surface 41 of the edge portion 29 along the extending direction of the edge portion 29 and shifted in the width direction of the opening / closing body 11 with respect to the winding inner convex member 19 and is wound outward. An outer winding convex member 21 that regulates the winding displacement of the opening / closing body 11 in the width direction by contacting the winding inner convex member 19 of the portion 29 in the width direction of the opening / closing body 11;
It is characterized by comprising.

  In this structure of the opening / closing body, when the opening / closing body 11 is wound around the winding shaft 17, the winding inner surface 37 of the opening / closing body 11 is wound in contact with the outer peripheral surface of the winding shaft 17. After the opening / closing body 11 is first wound around the winding shaft 17, the opening / closing body 11 is wound on the already-opened opening / closing body 11, that is, the upper layer is stacked on the lower layer. In the opening / closing body 11, the outer peripheral surface wound in the lower layer is a wound outer surface 41. As the opening / closing body 11 is sequentially wound by the rotation of the winding shaft 17, the winding inner surface 37 of the upper opening / closing body 11 is wound on the lower winding outer surface 41 that has already been wound. Under the present circumstances, the outer side convex member 21 is provided in the edge part 29 of the lower winding outer surface 41 continuously in the circumferential direction. When the upper layer of the opening / closing body 11 is wound, the inner winding convex member 19 provided on the edge 29 of the upper winding inner surface 37 contacts the lower winding outer convex member 21 in the width direction. When the winding outer convex member 21 and the winding inner convex member 19 are in contact with the opening / closing body 11, the relative movement of the upper layer and the lower layer in the contacting direction is restricted. That is, winding deviation and winding flow in this direction (axial direction) are restricted. Thereby, the opening / closing body 11 is wound straight around the winding shaft 17, the winding shape is stabilized, and the generation of wrinkles is reduced.

The structure of the opening / closing body according to claim 2 of the present invention is the structure of the opening / closing body according to claim 1,
The winding inner convex member 19 is arranged on the inner side in the width direction of the opening / closing body 11 with respect to the outer winding convex member 21.

  In the structure of the opening / closing body, the outer-side convex member 21 is disposed on the edge portions 29 on both sides of the wound outer surface 41 of the opening / closing body 11 that is wound first and becomes the lower layer. On top of that, the wound inner surface 37 of the upper opening / closing body 11 to be wound next is in contact with and rolled up. The winding inner surface 37 is provided with a pair of winding inner convex members 19 at the edge portions 29 on both sides. When the winding inner surface 37 is in contact with the lower winding outer surface 41, the upper layer opening / closing body 11 has a pair of winding inner projections positioned on the inner side in the width direction on the pair of outer winding convex members 21 positioned on the outer side in the width direction of the outer winding surface 41. The member 19 hits from the inside. As a result, the opening / closing body 11 in which the upper layer is sequentially wound around the lower layer is less likely to displace the upper opening / closing body 11 in the width direction relative to the lower opening / closing body 11, and the width is wound substantially constant.

The structure of the opening / closing body according to claim 3 of the present invention is the structure of the opening / closing body according to claim 1 or 2,
The height dimension from the edge 29 of at least one of the winding inner convex member 19 and the outer winding convex member 21 is formed to be the same as the height dimension of the retaining member 35 in the same direction. And

  In this structure of the opening / closing body, even when the opening / closing body 11 is wound and laminated in a plurality of layers, the overlapping portion of the winding inner convex member 19 and the outer protruding member 21 and the overlapping portion of the retaining member 35 are The height from the outer peripheral surface of the winding shaft 17, that is, the radial distance of the winding shaft 17 becomes equal. Thereby, the opening / closing body 11 can avoid being wound thickly in a part in the width direction.

The structure of the opening / closing body according to claim 4 of the present invention is the structure of the opening / closing body according to any one of claims 1 to 3,
The retaining member 35 is formed on the wing-like portion 31 extending along the edge portion 29,
The inner winding convex member 19 and the outer winding convex member 21 are formed integrally with the wing-shaped portion 31.

  In the structure of the opening / closing body, the retaining member 35, the winding inner convex member 19, and the outer winding convex member 21 are integrally formed on the wing-shaped portion 31 by integral molding. Thereby, these members become constant without any variation in the distance between them at an arbitrary position in the extending direction of the edge portion 29.

The structure of the opening / closing body according to claim 5 of the present invention is the structure of the opening / closing body according to any one of claims 1 to 4,
The winding inner convex member 19 and the outer winding convex member 21 are disposed and covered inside the guide rail 43.

  In the structure of the opening / closing body, the inner winding convex member 19 and the outer winding convex member 21 provided on the front and back surfaces of the edge portion 29 are covered with the guide rail 43. For example, when the inner and outer convex members 19 and 21 on the front and back sides are positioned outside the guide rail 43, the portions covering the inner and outer convex members 19 and 21 are on the guide rail side. It is formed. Alternatively, the guide rail groove 27 is formed deep, and both the retaining member 35 and the inner winding convex member 19 and the outer winding convex member 21 are disposed and covered in the guide rail groove.

  According to the structure of the opening / closing body according to claim 1 of the present invention, when the opening / closing body is sequentially wound by the rotation of the winding shaft, the opening / closing body is provided at the edge of the lower outer winding surface that is wound first. The inner winding convex member provided at the edge of the upper winding inner surface to be wound next contacts the outer winding convex member in the width direction, and the opening / closing body has the outer convex member and the inner convex member. The relative movement is restricted by the contact, that is, the winding displacement and the winding flow in the axial direction that is the contact direction are restricted, so that the opening / closing body is wound straight around the winding shaft. It becomes possible to stabilize the winding shape. In addition, since the opening / closing body is wound without being displaced, the position of the edge of the opening / closing body is determined even during rewinding, and it is possible to avoid the trouble of guiding by the guide rail, which may cause the lifting / lowering operation to fail. Is reduced. In addition, since the opening / closing body is wound without being displaced, the occurrence of wrinkles and the like is reduced. This also prevents the opening / closing body from being soiled, and can extend the life of the opening / closing body.

  According to the structure of the opening / closing body according to claim 2 of the present invention, when the wound inner surface of the upper opening / closing body that is wound next comes into contact with the wound outer surface of the opening / closing body that is wound first, the wound outer surface The opening / closing body in which the pair of the winding inner convex members positioned on the inner side in the width direction hits the pair of the winding outer convex members positioned on the outer side in the width direction from the inner side. The opening / closing body of the lower side opening / closing body is fitted with the outer-side convex member and the inner-side convex member so that the displacement in the width direction is restricted, the displacement in the width direction becomes difficult, and the width is reduced. It becomes possible to wind it constant.

  According to the structure of the opening / closing body according to claim 3 of the present invention, even when the opening / closing body is wound up and laminated in a plurality of layers, the overlapping portion of the winding inner convex member and the outer winding convex member and the retaining member are prevented. The height from the outer peripheral surface of the take-up shaft to the overlapping part of the member becomes equal, so that the opening / closing body can be avoided from being thickly wound in a part of the width direction, Can be made difficult.

  According to the structure of the opening / closing body according to claim 4 of the present invention, the retaining member, the outer projecting member, and the inner projecting member are integrally formed on the wing-like portion with respect to the edge of the opening / closing member. As a result, the winding outer convex member and the winding inner convex member can be brought into contact with the opening / closing body with high accuracy.

  According to the structure of the opening / closing body according to claim 5 of the present invention, the winding inner convex member and the winding outer convex member provided at the edge of the opening / closing body are located in the guide rail and covered with the guide rail. Thus, the winding inner convex member and the outer convex member can be expected to be protected from external force and dust by the guide rail, and the appearance of the opening / closing body can be improved.

It is a whole perspective view of a shutter device provided with the structure of the opening-and-closing body concerning a 1st embodiment of the present invention. It is a front view at the time of closing of the opening-closing body of the shutter apparatus shown in FIG. It is AA sectional drawing of FIG. It is a principal part expanded sectional view of one edge part of the opening-closing body wound up by the winding shaft. It is a principal part expanded sectional view when the height of a convex member is small with respect to the retaining member. It is a perspective view which shows an example of the integrally molded product by which the convex member and the retaining member were integrally provided in the wing-like part. FIG. 7 is a cross-sectional plan view of the integrally molded product shown in FIG. 6. It is a plane sectional view showing an example of a guide rail shape which hides a convex member. It is a perspective view of the wing-like part in which the dentition row was provided as a retaining member. FIG. 10 is a plan sectional view of FIG. 9. It is a schematic side view of the shutter device which concerns on 2nd Embodiment provided with the slack prevention mechanism in the center part vicinity of the winding shaft. It is a schematic side view of the opening-closing body winding state of the shutter apparatus shown in FIG. It is a schematic side view which shows an example of the structure by which the belt winding part was provided in a different position. It is a front view of FIG. It is a side view of the shutter apparatus which concerns on 3rd Embodiment provided with the guide shaft.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is an overall perspective view of the shutter device 13 having the structure of the opening / closing body 11 according to the first embodiment of the present invention, and FIG. 2 is a front view of the shutter device 13 shown in FIG.
The structure of the opening / closing body according to the present embodiment is preferably used for the shutter device 13 that opens and closes a building opening 15, a partition part of an refrigeration / refrigeration facility, an entrance / exit, and the like using, for example, a sheet-like shutter curtain 11 as the opening / closing body. it can. In addition, the opening / closing body may be a slat curtain or a screen. The structure of the shutter curtain 11 includes a winding shaft 17, a retaining member 35, a winding inner convex member 19, and an outer winding convex member 21 as main components.

  A shutter curtain storage portion 23 is attached to the upper edge portion of the building opening 15. The shutter curtain housing part 23 houses a winding shaft 17 that is rotated by an electric switch (not shown). The shutter curtain storage part 23 has a curtain entrance / exit part (not shown) on the lower surface. A pair of guide rails 25 are connected and fixed to the building opening 15 across the curtain entrance / exit.

  The guide rails 25 are separated from each other with the building opening 15 therebetween, and are substantially vertical and extend in the vertical direction (the vertical direction in FIG. 2). Each guide rail 25 has a guide rail groove 27 whose cross-sectional shapes orthogonal to the extending direction face each other, and is formed in a substantially U-shaped cross section (see FIG. 3). The guide rail groove 27 is formed in a substantially dovetail shape with a groove edge narrowed and widened. The groove width of the guide rail groove 27 is formed slightly wider than the thickness of the shutter curtain 11. In the shutter curtain 11, the edge portion 29 or the wing-like portion 31 is inserted into the guide rail groove 27, and the retaining member 35 is disposed in the inner space 33 of the guide rail groove 27. Thereby, the edge part 29 of both sides can be moved to the up-down direction by the guide rail 25, and the shutter curtain 11 is hold | maintained hold | maintained.

  The shutter curtain 11 is wound around the winding shaft 17, and the edge portions 29 at both ends are arranged in the guide rail groove 27, so that the shutter curtain 11 is opened and closed by the pair of guide rails 25. The opening 15 is opened and closed.

  In the present embodiment, the shutter curtain 11 is a sheet curtain, and this sheet curtain is a cloth screen, or a soft resin sheet such as vinyl chloride or urethane, and further a cloth screen is covered with a resin, rubber or rubber-like substance. The sheet | seat etc. which were formed in this way can be used. In addition, when used for disaster prevention purposes such as fire prevention and smoke prevention, for example, silica cloth or glass cloth, or a fire resistant paint or waterproof covering material as a flame retardant or fire resistant covering material is sprayed or applied or impregnated. Can be suitably used. Furthermore, the sheet curtain may be combined with a reinforcing metal such as a wire mesh or a resin wire. In general, the seat curtain is often opaque, but in order to provide daylighting and transparency, a window having a light-transmitting property is appropriately provided or a material having a light-transmitting property is used. It may be something.

3 is a cross-sectional view taken along the line AA in FIG.
The retaining member 35 is provided on the left and right edge portions 29 on both sides in the width direction of the shutter curtain 11. In the present embodiment, the retaining member 35 is formed at the end of the band-shaped wing-shaped portion 31 fixed along the edge portion 29. The wing-like part 31 can be formed of a resin material. The wing-like portion 31 is fixed to the edge portion 29 of the shutter curtain 11 by welding, sewing, adhesion, or the like. The retaining member 35 is formed as, for example, an engagement bulge that continues along the extending direction of the wing-shaped portion 31. The engagement bulge 35 has a circular bulge portion in a plan view, and has a so-called bead shape in which the circular cross section is continuous. The engagement bulge 35 is engaged with the guide rail 25 by being inserted into the guide rail groove 27 from the upper end of the guide rail 25. Thereby, the engagement bulge 35 supports the edge portions 29 on both sides of the shutter curtain 11 movably on the guide rail 25. The retaining member 35 is for preventing the edges 29 on both sides of the shutter curtain 11 from coming out of the guide rail 25. However, when a certain amount of pressure is applied to the shutter curtain 11, the shutter curtain 11 is damaged. In order to avoid this, the retaining member 35 may be configured to be able to be removed from the guide rail 25.

  In the present embodiment, an example in which the engagement bulge 35 is formed on the wing-like portion 31 fixed to the edge 29 of the shutter curtain 11 will be described. It may be formed directly on the edge 29 of the.

  The winding inner convex member 19 is provided on the winding inner surface 37 of the edge 29 of the shutter curtain 11 along the extending direction of the edge 29. The winding inner convex member 19 is formed in a substantially rectangular shape in a plan sectional view shown in FIG. A pair of parallel protruding edges along the extending direction of the protruding tip of the winding inner convex member 19 becomes a chamfered portion 39 chamfered by the R surface. In addition, the winding inner convex member 19 may have a semicircular shape, a semi-elliptical shape, a triangular shape, a pentagonal shape, or the like in a plan view.

  The winding-out convex member 21 is formed on the winding outer surface 41 of the edge 29 of the shutter curtain 11 along the extending direction of the edge 29 and with respect to the winding-in convex member 19 in the width direction of the shutter curtain 11 (left and right in FIG. 3). In the direction). A pair of parallel protruding edges along the extending direction of the protruding tip of the outer convex member 21 is a chamfered portion 39 chamfered by an R surface. The outer winding convex member 21 is in contact with the inner winding convex member 19 of the edge 29 wound outwardly in the width direction of the shutter curtain 11. Thereby, the winding outer side convex member 21 regulates the winding | deviation deviation of the width direction of the shutter curtain 11 wound by the upper layer.

  In the shutter curtain 11, a pair of winding inner convex members 19 provided on the winding inner surfaces 37 of the left and right edge portions 29 is replaced with a pair of outer winding convex members 21 provided on the winding outer surfaces 41 of the left and right edge portions 29. In contrast, the shutter curtain 11 is disposed on the inner side in the width direction, in other words, near the center of the shutter curtain 11 in the width direction. That is, in a state of being wound around the winding shaft 17, the pair of left and right winding outer convex members 21 are positioned so as to sandwich the pair of left and right winding inner convex members 19 on the inside. In contrast, the pair of left and right winding inner convex members 19 may be disposed on the outer side in the width direction of the shutter curtain 11 with respect to the pair of left and right outer winding convex members 21.

FIG. 4 is an enlarged cross-sectional view of a main part of one edge portion 29 of the shutter curtain 11 wound around the winding shaft 17.
In the shutter curtain 11, the height dimension H <b> 2 from at least one edge portion 29 of the inner winding convex member 19 and the outer winding convex member 21 is substantially the same as the height dimension H <b> 1 in the same direction of the engagement bulge 35. Is formed. In the present embodiment, the engagement bulge 35 is provided on the wing-like portion 31 fixed to the edge portion 29, and the edge portion 29 to which the wing-like portion 31 is fixed is a member having a predetermined thickness. The height dimension H2 of the inner side convex member 19 and the outer side convex member 21 is a dimension (H2 = H1-t) obtained by subtracting the thickness t of the edge 29 from the height (diameter) dimension H1 of the engagement bulge 35. It has become. Thereby, when the shutter curtain 11 is wound around the winding shaft 17, the winding diameter on the edge portion 29 side is stabilized while the winding deviation is restricted by the winding inner convex member 19 and the outer winding convex member 21.

FIG. 5 is an enlarged cross-sectional view of a main part when the height of the convex member is smaller than the retaining member.
The shutter curtain 11 may have a structure in which the height dimension H2 of the inner winding convex member 19 or the outer winding convex member 21 is smaller than the height dimension H1 of the engagement bulge 35, for example. In this case, as shown in FIG. 5, the wing-like portion 31 is bent, but the shutter curtain 11 is wound and engaged so as to avoid the winding flow by contacting the inner winding convex member 19 and the outer winding convex member 21. The bulging strips 35 will overlap.

6 is a perspective view showing an example of an integrally molded product in which a convex member and a retaining member are integrally provided on the wing-like portion 31, and FIG. 7 is a plan sectional view of the integrally molded product shown in FIG.
As shown in FIG. 6, the shutter curtain 11 has a structure in which an engagement bulge 35 is formed in a wing-like portion 31 extending along the edge portion 29, and the inner winding convex member 19 and the outer winding convex member 21 are provided. The wing-shaped portion 31 may be integrally formed. That is, the engagement bulge 35, the winding inner convex member 19, and the outer winding convex member 21 may be integrally formed on the wing-shaped portion 31, for example, as an extruded product. In this configuration example, as shown in FIG. 7, by attaching the wing-like portion 31 to the edge 29 of the shutter curtain 11, the inner and outer convex members 19 and 21 and the engagement bulge 35 are simultaneously formed. The attachment is completed, and the respective arrangement positions are set by fixing the wing-like part 31 to the edge part 29.

FIG. 8 is a plan sectional view showing an example of a guide rail shape that hides the convex member.
Further, the shutter curtain 11 may be configured such that the winding inner convex member 19 and the outer winding convex member 21 are disposed inside the guide rail 43 and covered with the guide rail 43. In this case, the guide rail 43 is formed in a U-shape having a pair of parallel side plate portions 45 covering the inner side convex member 19 and the outer side convex member 21 of the edge portion 29. In the guide rail 43, a deep wing-shaped portion receiving groove 47 is formed by the pair of side plate portions 45. An inner rail 49 that engages with the engaging bulge 35 is fixed to the back side of the wing-shaped portion receiving groove 47. As a result, in the shutter curtain 11, the inner-side convex member 19 and the outer-side convex member 21 are hidden by the pair of side plate portions 45 of the guide rail 43. For this reason, the winding inner convex member 19 and the outer winding convex member 21 can be expected to be protected from external force and dust by the guide rail 43. In the example shown in FIG. 8, the engagement bulge 35, the winding inner convex member 19, and the outer winding convex member 21 are integrated with the wing-shaped portion 31, and this is fixed to the edge 29. Even in the configuration example of FIG. 3 in which the inner winding convex member 19 and the outer winding convex member 21 are provided on the front and back surfaces of the edge portion 29, the wing-shaped housing groove 47 is formed deeply in the pair of side plate portions 45 of the guide rail 43. You can get the same effect.

FIG. 9 is a perspective view of the wing-like portion 31 provided with the dentition 51 as a retaining member, and FIG. 10 is a plan sectional view of FIG.
Furthermore, the shutter curtain 11 can use, for example, a fastener tooth row 51 of a fastener, which is a retaining member, at the edge 29 of the shutter curtain 11, instead of the engagement bulge 35 described above. This service tooth row 51 can be constituted by a plurality of engagement elements 53 or spiral linear engagement bodies. The tooth set 51 is formed to be larger than the groove edge width of the guide rail groove 27 of the guide rail groove 27. The shutter curtain 11 is restricted from coming off from the guide rail 25 by disposing the dentitions 51 of the left and right edge portions 29 in the back space 33 of the guide rail groove 27. The shutter curtain 11 can continuously and easily form a high-strength retaining member at the edge 29 of the thin shutter curtain 11 by employing the dentition 51. In the example of the service tooth row 51, as shown in FIG. 9, the winding inner convex member 19 and the outer winding convex member 21 are integrally formed on the wing-like portion 31, and the dent tooth row 51 is formed on the wing-like portion 31. Although not shown in the figure, the wing-like part 31 provided with the winding inner convex member 19 and the outer winding convex member 21 on the front and back surfaces of the edge 29 of the shutter curtain 11 and having the dentition 51 is provided. It is good also as a structure provided in the edge part 29. FIG. Further, the retaining member made of the tooth arrangement 51 is also used to prevent the edges 29 on both sides of the shutter curtain 11 from coming out of the guide rail 25. However, when a strong pressure is applied to the shutter curtain 11 to some extent. In order to avoid breakage of the shutter curtain 11, etc., the service tooth row 51, which is a retaining member, may be configured to be able to be removed from the guide rail 25.

  Although not shown, instead of the engagement bulge 35, the edge 29 of the shutter curtain 11 is configured to use a retaining body composed of a bolt and nut or a retaining wire, and from the guide rail 25. It is good also as a structure by which omission is controlled.

Next, the operation of the above configuration will be described.
In the structure of the shutter curtain 11 according to the present embodiment, when the shutter curtain 11 is wound around the winding shaft 17, first, the winding inner surface 37 of the shutter curtain 11 is wound in contact with the outer peripheral surface of the winding shaft 17. After the shutter curtain 11 is first wound around the winding shaft 17, as shown in FIG. 4, the shutter curtain 11 is wound in an overlapping manner so as to be an upper layer on what has already been wound.

  The winding inner convex member 19 directly contacts the outer peripheral surface of the winding shaft 17 when the attachment start position is shorter than the circumferential length of the winding shaft 17 from the fixed position of the shutter curtain 11 with respect to the winding shaft 17. Rolled up. When the installation start position of the winding inner convex member 19 is longer than the circumferential length of the winding shaft 17 from the fixed position with respect to the winding shaft 17 of the shutter curtain 11, the shutter curtain 11 wound around the outer periphery of the winding shaft 17. It is wound by hitting. That is, the attachment start position of the winding inner convex member 19 may be shorter or longer than the circumferential length of the winding shaft 17. Further, the winding inner convex member 19 and the outer winding convex member 21 may be set with the same or different mounting start positions on the front and back of the shutter curtain 11.

  In addition, it is preferable to form the recessed part (not shown) in which the winding inner side convex member 19 of the winding inner surface 37 fits in the outer periphery of the winding shaft 17. FIG. Thereby, the first winding inner convex member 19 in contact with the winding shaft 17 can be engaged with the winding shaft 17 and the winding flow of the shutter curtain 11 can be more reliably suppressed.

  In the shutter curtain 11, the outer peripheral surface wound in the lower layer is a wound outer surface 41. The shutter curtain 11 is sequentially wound by the rotation of the winding shaft 17, so that the winding inner surface 37 of the shutter curtain 11 that is the upper layer is wound on the lower winding outer surface 41 that has already been wound. . Under the present circumstances, the outer side convex member 21 is provided in the edge part 29 of the lower winding outer surface 41 continuously in the circumferential direction. When the upper layer of the shutter curtain 11 is wound, the inner winding convex member 19 provided on the edge 29 of the upper winding inner surface 37 contacts the lower outer winding convex member 21 in the width direction. In the shutter curtain 11, when the outer projecting member 21 and the inner projecting member 19 are in contact with each other, the relative movement of the upper layer and the lower layer in the contacting direction, that is, the direction along the winding shaft 17 is restricted. That is, the winding deviation and the winding flow in this direction are restricted, and the shutter curtain 11 is wound substantially straight on the winding shaft 17. Thereby, a winding shape is stabilized and generation | occurrence | production of a wrinkle etc. is reduced.

  Further, in the structure of the shutter curtain 11, the outer-side convex member 21 is disposed on the edge portions 29 on both sides of the outer surface 41 of the shutter curtain 11 that is wound first and becomes the lower layer. The winding inner surface 37 of the upper shutter curtain 11 is in contact with and wound thereon. The winding inner surface 37 is provided with a pair of left and right winding inner convex members 19 at the left and right edge portions 29. When the winding inner surface 37 is in contact with the lower winding outer surface 41, the upper shutter curtain 11 has a pair of left and right winding outer convex members 21 positioned on the outer side in the width direction of the outer winding surface 41 and a pair of left and right windings positioned on the inner side in the width direction. The inner convex member 19 hits from the inside. Thereby, the shutter curtain 11 in which the upper layer is sequentially wound around the lower layer is less likely to be displaced in the width direction with respect to the lower layer shutter curtain 11. In other words, it is wound while being positioned. As a result, the shutter curtain 11 is less likely to be displaced in the width direction even if it is wound a plurality of times.

  Further, in the structure of the shutter curtain 11, even when the shutter curtain 11 is laminated in a plurality of layers, the winding of the overlapping portion of the winding inner convex member 19 and the outer winding convex member 21 and the overlapping portion of the engagement bulge 35 is taken up. The distance in the radial direction of the winding shaft 17 that is the height from the outer peripheral surface of the shaft 17 becomes equal. Thereby, the shutter curtain 11 can avoid being thickly wound in a part in the width direction (see FIG. 4). As a result, it is possible to prevent the shutter curtain 11 from being curled or misaligned.

  Further, in the structure of the shutter curtain 11, the engagement bulging strip 35, the winding inner convex member 19, and the outer winding convex member 21, which are retaining members, may be integrally formed on the wing-shaped portion 31. . As a result, the distance between these members is constant at an arbitrary position in the extending direction of the edge portion 29, and the members are arranged without variation. As a result, the winding outer convex member 21 and the winding inner convex member 19 can be brought into contact with each other with high accuracy when the shutter curtain 11 is wound.

  Further, in the structure of the shutter curtain 11, the inner winding convex member 19 and the outer winding convex member 21 provided on the front and back surfaces of the edge portion 29 are covered with the guide rail 43. For example, when the front and back inner winding convex members 19 and outer winding convex members 21 are positioned outside the guide rail 25, the side plate portion 45 that is a portion covering the inner winding convex member 19 and the outer convex member 21. Is formed on the guide rail side. Alternatively, the guide rail groove 27 is formed deep, and both the engagement bulging portion 35 and the inner winding convex member 19 and the outer winding convex member 21 are disposed and covered in the guide rail groove 27. As a result, the winding inner convex member 19 and the outer winding convex member 21 can be expected to be protected from external force, dust and the like by the guide rail 43, and the appearance of the shutter curtain 11 can be improved.

Next, a shutter device 55 according to a second embodiment having the structure of the shutter curtain 11 will be described.
FIG. 11 is a side view of the shutter device 55 according to the second embodiment provided with a loosening prevention mechanism 57 in the vicinity of the center portion of the winding shaft 17, and FIG. 12 is a state in which the opening / closing body of the shutter device 55 shown in FIG. 13 is a side view showing an example of a configuration in which the belt winding portion 59 is provided at a different position, and FIG. 14 is a front view of FIG. In addition, in description of each following embodiment, the same code | symbol is attached | subjected to the member and site | part equivalent to the member and site | part shown to FIGS. 1-10, and the overlapping description is abbreviate | omitted.
The shutter device 55 is provided with a slack prevention mechanism 57 shown in FIG. The slack preventing mechanism 57 is provided with a belt winding portion 59 at a substantially central portion in the extending direction of the winding shaft 17. A belt 61 is wound around the belt winding unit 59. The front end of the belt 61 in the feed-out direction is fixed to the shutter curtain 11 at a substantially central portion in the extending direction of the winding shaft 17. As shown in FIG. 12, the belt winding unit 59 has a function of attaching the belt 61 to the shutter curtain 11 wound around the winding shaft 17. The belt winding unit 59 includes a mechanism capable of winding the belt 61 when the shutter curtain 11 is extended. The belt take-up unit 59 is arranged below the take-up shaft 17 as shown in FIG. 13 in the shutter curtain storage unit 23 even if it is arranged above the take-up shaft 17 as shown in FIG. Also good.
Since the belt 61 is attached to the substantially central portion in the width direction of the shutter curtain 11 wound around the winding shaft 17, the belt inner convex member 19 and the outer convex member 21 do not interfere with each other (in other words, disposed. It will be attached to (not the position).

  The loosening prevention mechanism 57 is wound around the shutter curtain 11 at the substantially central position in the width direction together with the shutter curtain 11 in the shutter curtain storage unit 23, and simultaneously winds the belt 61 when the shutter curtain 11 is wound. Stabilize the winding shape of the central part of the. The thickness of the belt 61 is set to a value close to the height dimension H1 of the engaging bulge 35. The slack prevention mechanism 57 can wind up the central portion of the shutter curtain 11 without slackening, by setting the length corresponding to the distance between the shutter curtains when the engagement bulges 35 are stacked as the thickness.

  The shutter device has a large opening width (curtain width) of 6 m, etc., and the central portion is slackened, and the lower side of the winding shaft 17 in the winding state with respect to the straight winding shaft 17. The shutter curtain 11 hangs down by its own weight. For this reason, the upper side of the winding state approaches the center of the winding shaft 17, and wrinkles occur in the shutter curtain 11. This kite increases as the winding progresses. Therefore, the shutter device 55 includes the slack prevention mechanism 57, so that the belt 61 is wound around the central portion of the shutter curtain 11 together as shown in FIG. 14, and the slack at the central portion is suppressed.

  According to the shutter device 55, the winding shape is stabilized by winding the center of the wound shutter curtain 11 with the belt 61. As a result, the shutter curtain 11 moves straight during winding and unwinding. For this reason, a winding shape can be further stabilized by comprising together with said winding inner side convex member 19 and said outer winding side convex member 21. FIG. As a result, wrinkles of the shutter curtain 11 can be suppressed and the life of the shutter curtain 11 can be further extended.

Next, a shutter device 63 according to a third embodiment having the structure of the shutter curtain 11 will be described.
FIG. 15 is a side view of the shutter device 63 according to the third embodiment including the guide shaft 65.
The shutter device 63 includes a drive shaft 67 and a guide shaft 65 in the shutter curtain storage unit 23. The drive shaft 67 is rotated by an electric switch (not shown) to wind up and feed out the shutter curtain 11. The shutter curtain 11 that is fed by the drive shaft 67 is stretched around the guide shaft 65. The shutter curtain 11 is provided with the above-described inner winding convex member 19 and outer winding convex member 21. The guide shaft 65 is disposed substantially immediately above the guide rail 25. Further, the guide shaft 65 is provided at a position where the center of rotation is higher than the drive shaft 67 by the dimension H.

  In the shutter device 63, when the drive shaft 67 is rotated and the shutter curtain 11 is wound around or extended from the drive shaft 67, the outer diameter of the shutter curtain 11 wound around the drive shaft 67 changes. The shutter curtain 11 drawn out from the winding state in which the outer diameter changes is stretched around the guide shaft 65, and the drawing direction is changed downward in the vertical direction in the tangential direction of the guide shaft 65. In other words, in the shutter device 63, the shutter curtain 11 is stretched over the guide shaft 65, so that the shutter curtain 11 is not affected by a change in the outer diameter (winding diameter) of the shutter curtain winding body wound around the drive shaft 67. Is always inserted straight into the guide rail 25.

  In the shutter device 63, the guide shaft 65 is installed at a position higher than the drive shaft 67. Therefore, the shutter curtain 11 spanned between the drive shaft 67 and the guide shaft 65 is inclined, so that a tension due to its own weight acts. In the shutter curtain 11, when the drive shaft 67 and the guide shaft 65 are horizontally arranged, for example, vertical gravity acts on the shutter curtain 11 that is horizontally disposed between the drive shaft 67 and the guide shaft 65. Looseness occurs. On the other hand, in the shutter device 63, since the dead weight acts diagonally, the shutter curtain 11 is less likely to be loosened. In particular, the tension due to the dead weight from the guide shaft 65 to the guide rail 25 side, and the guide shaft 65 to the drive shaft 67. The tensile force in the winding direction on the side acts to disperse the gravity in the vertical direction between the guide shaft 65 and the drive shaft 67, thereby suppressing the occurrence of slack and stabilizing the winding shape.

  According to the shutter device 63, the slack of the shutter curtain 11 is reduced and wound straight around the drive shaft 67. The shutter curtain 11 also enters the guide rail 25 straight. Thereby, the shutter curtain 11 has a stable winding shape on the drive shaft 67. The load caused by the shutter curtain 11 having an unstable shape applied to the drive shaft 67 is also reduced. As a result, in addition to the same effect as described above by the winding inner convex member 19 and the outer winding convex member 21, the wrinkle of the shutter curtain 11 is further suppressed, that is, the slack is suppressed in the width direction of the shutter curtain 11. Thus, the life of the shutter curtain 11 can be further extended.

  Accordingly, at the right and left edge portions of the shutter curtain 11, the winding inner convex member 19 and the outer winding convex member 21 suppress the winding deviation that is the deviation in the width direction of the shutter curtain 11, thereby restricting the winding flow. The curtain 11 is wound straight on the winding shaft 17, the winding shape is stabilized, and wrinkles and the like are reduced. Accordingly, the occurrence of contamination or the like in the shutter curtain 11 is reduced, the appearance is avoided, and the residual distortion is also suppressed, so that the life of the shutter curtain 11 can be extended. Furthermore, the structure provided with the slack prevention mechanism 57 and the guide shaft 65 can further suppress the occurrence of slack, stabilize the winding shape, prevent wrinkles, and extend the life of the shutter curtain 11.

11 ... Opening and closing body (shutter curtain)
DESCRIPTION OF SYMBOLS 17 ... Winding axis | shaft 19 ... Winding inner side convex member 21 ... Winding outer side convex member 25 ... Guide rail 29 ... Edge part 31 ... Wing-like part 35 ... Detachment member (engaging bulge)
37 ... winding inner surface 41 ... winding outer surface

Claims (5)

A winding shaft for winding the opening and closing body;
A retaining member that is provided at an edge portion on both sides in the width direction of the opening / closing body, engages with a guide rail, and supports the edge portion movably on the guide rail;
A winding inner convex member provided on the inner surface of the edge along the extending direction of the edge;
The winding inner side of the edge portion which is provided on the outer winding surface of the edge portion along the extending direction of the edge portion and shifted in the width direction of the opening / closing body with respect to the winding inner convex member, and is wound outward. A winding-out convex member that regulates winding displacement in the width direction of the opening / closing body by contacting the convex member in the width direction of the opening / closing body;
The structure of the opening-closing body characterized by comprising. The structure of the opening / closing body according to claim 1,
The structure of the opening / closing body, wherein the winding inner convex member is disposed on the inner side in the width direction of the opening / closing body with respect to the outer winding convex member. It is a structure of the opening-closing body of Claim 1 or 2, Comprising:
The opening / closing body, wherein a height dimension from at least one of the edge portions of the inner winding convex member and the outer winding convex member is the same as a height dimension in the same direction of the retaining member. Structure. It is a structure of the opening-closing body of any one of Claims 1-3,
The retaining member is formed in a wing extending along the edge;
The structure of the opening / closing body, wherein the winding inner convex member and the outer winding convex member are integrally formed on the wing-shaped portion. It is the structure of the opening-closing body of any one of Claims 1-4,
The structure of the opening / closing body, wherein the winding inner convex member and the outer winding convex member are disposed and covered inside the guide rail.

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