JP6694699B2 - Open / close body structure - Google Patents

Description

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

  The shutter curtain, which is an opening and closing body, opens and closes the building opening by being wound and unwound by a winding shaft. At this time, the edge portions 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, which is engaged with the guide rail and regulates the removal of the edge from the guide rail, at both edges in the width direction. When the shutter curtain is made of a thin material such as a sheet, the retaining member is a member thicker than the shutter curtain. For example, Patent Document 1 discloses, for example, a coupling element row of a fastener as the retaining member. Further, Patent Document 2 discloses, as the retaining member, a longitudinal retaining wire which is provided in the insertion portion of the screen body by being inserted into the insertion portion. Patent Document 3 discloses, as the retaining member, a retaining body (bolt nut) for a screen that prevents the retaining body from coming off from the guide body (guide rail).

JP, 2013-87495, A JP, 2005-126984, A Japanese Patent Laid-Open No. 2005-182166

  However, when the sheet-like shutter curtain is wound around the winding shaft when the building opening is opened, the thick retaining member overlaps, so that the portion is wound thickly. As a result, in the shutter curtain, a so-called winding flow in which the edge portion is spiral or one edge portion is shifted to the bamboo shoot state is likely to occur, and the winding shape may not be stable. When the winding flow occurs in the shutter curtain, the width in the width direction, which is the length in the axial direction of the wound winding body, becomes larger than the width of the shutter curtain. Therefore, in the shutter curtain, the position of the edge portion is deviated from the position where the guide rail is arranged, which may cause a guide failure of the guide rail, which may cause a lowering operation failure. When a part of the shutter curtain is wound thickly or a winding flow occurs, wrinkles occur on the sheet-shaped shutter curtain body, impairing the aesthetics of the smooth sheet-shaped surface, and stains on the wrinkles. If they are attached or residual strains due to plastic deformation are accumulated, the service life may be shortened.

  The present invention has been made in view of the above circumstances, and an object thereof is to prevent misalignment during winding of an opening / closing body that is a shutter curtain, prevent wrinkles from occurring, and extend the life of the opening / closing body. It is to provide a 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 comprises a winding shaft 17 for winding the opening / closing body 11,
The retaining member 35 engages the provided with guide rails on both sides in the width direction of the edges 29 of the closing member 11, movably supports the edge 29 on the guide rail 25,
A winding inner 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 is displaced in the width direction of the opening / closing body 11 with respect to the winding inner convex member 19, and is wound on the outer side. A winding-side convex member 21 that restricts winding deviation of the opening / closing body 11 in the width direction by contacting the winding-side convex member 19 of the portion 29 in the width direction of the opening / closing body 11.
It is equipped with.
According to claim 1, in the above-mentioned configuration, the guide rail is formed in a substantially U-shaped cross section, an inner rail 49 is fixed to an inner wall surface on the back side of the guide rail, and the inner rail 49 has a leading edge of the edge portion. The retaining member 35 formed in the above is movably supported, and the winding inner side convex member and the winding outer side convex member are movably arranged and covered inside the both side plate portions of the guide rail. Characterize.

In this structure of the opening / closing body, when the opening / closing body 11 is wound around the winding shaft 17, the inner winding 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 once, the opening / closing body 11 is wound on the already-opened opening / closing body 11, that is, the upper layer is wound on the lower layer. The outer peripheral surface of the opening / closing body 11 wound in the lower layer serves as the outer winding surface 41. The opening / closing body 11 is sequentially wound by the rotation of the winding shaft 17, so that the winding inner surface 37 of the upper opening / closing body 11 is in contact with the already wound lower outer surface 41 of the lower layer. At this time, the winding-side convex member 21 is continuously provided in the circumferential direction on the edge portion 29 of the lower winding outer surface 41. In the opening / closing body 11, when the upper layer is wound, the inner winding convex member 19 provided on the edge portion 29 of the inner winding surface 37 of the upper layer is in contact with the outer winding convex member 21 of the lower layer in the width direction. When the winding-side convex member 21 and the winding-side convex member 19 contact each other, the opening / closing body 11 restricts relative movement of the upper layer and the lower layer in the contact direction. That is, winding deviation and winding flow in this direction (axial direction) are restricted. As a result, the opening / closing body 11 is wound straight around the winding shaft 17, the winding shape is stable, and the occurrence of wrinkles is reduced.
The winding inner side convex member 19 and the winding outer side convex member 21 are arranged inside the both side plate portions of the guide rail, so that protection from external force, dust and the like can be expected, and the appearance of the shutter curtain 11 can be improved.

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-inside convex member 19 is disposed inside the winding-side protruding member 21 in the width direction of the opening / closing body 11.

  In the structure of this opening / closing body, the winding-side convex member 21 is arranged at the edge portions 29 on both sides of the winding outer surface 41 of the opening / closing body 11 which is previously wound and is a lower layer. The winding inner surface 37 of the upper opening / closing body 11 to be wound next is in contact therewith and is wound and stacked. The winding inner surface 37 is provided with a pair of winding-inside convex members 19 on both edges 29. When the inner winding surface 37 of the lower layer is in contact with the inner winding surface 37 of the lower layer, the pair of outer winding convex members 21 located on the outer side of the outer winding surface 41 in the width direction has a pair of inner winding protrusions located on the inner side in the width direction. The member 19 hits from the inside. As a result, in the opening / closing body 11 in which the upper layer is sequentially wound on the lower layer, the opening / closing body 11 of the upper layer is less likely to be displaced in the width direction with respect to the opening / closing body 11 of the lower layer, and the width length is 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 of the edge portion 29 of at least one of the winding inner side convex member 19 and the winding outer side convex member 21 from the front and back surfaces is formed to be substantially the same as the height dimension of the retaining member 35 in the same direction. It is characterized by being

  In the structure of the opening / closing body, even if the opening / closing body 11 is wound and laminated in a plurality of layers, the overlapping portion of the winding inner side convex member 19 and the winding outer side convex member 21 and the overlapping portion of the retaining member 35 are formed. 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 be prevented from being thickly wound 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 portion 31 extending along the edge 29,
The winding-side convex member 19 and the winding-side convex member 21 are formed integrally with the wing-shaped portion 31.

  In this structure of the opening / closing body, the retaining member 35, the winding inner side convex member 19 and the winding side outer side convex member 21 are integrally formed on the wing-shaped portion 31 by integral molding or the like. As a result, the distance between these members becomes constant at any position in the extending direction of the edge portion 29 without variation in the mutual distance.

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 side convex member 19 and the winding side outer side convex member 21 are formed in a substantially rectangular shape in a plan sectional view, and the both parallel edges of the protruding tips are chamfered portions chamfered by the R surface . It is characterized by
The structure of the opening / closing body according to claim 6 of the present invention is the structure of the opening / closing body according to any one of claims 1 to 5,
A slack prevention mechanism for the opening / closing body is provided, and the slack prevention mechanism has a belt 61 that is wound around a belt winding portion so as to be able to be rolled out freely, and has a front end in the feeding direction fixed to the opening / closing body,
The belt 61 is provided at a substantially central portion in the width direction of the opening / closing body, and at a position where it does not interfere with the winding-inside convex member and the winding-side protruding member provided on both edges in the width direction of the opening / closing body. It is characterized by doing things.

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

  According to the structure of the opening / closing body according to the first aspect 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 portion of the winding outer surface of the lower layer that is previously wound. The winding inner side convex member provided on the edge portion of the winding inner surface of the upper layer to be wound next is in contact with the winding outer side convex member in the width direction, and the opening / closing body has the winding outer side convex member and the winding inner side convex member. By making contact with each other, relative movement is restricted, that is, winding deviation and winding flow in the axial direction, which is the direction of contact, are restricted, whereby the opening / closing body is wound straight on the winding shaft. It is 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 set even when rewinding, and it is possible to avoid the problem of guiding by the guide rail, which may cause a failure in the lifting operation. Is reduced. In addition, since the opening / closing body is wound without being displaced, wrinkles and the like are reduced, which also prevents the opening / closing body from being soiled and extends 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 winding inner surface of the upper opening / closing body to be wound next comes into contact with the winding outer surface of the opening / closing body to be the first layer to be wound next, The pair of winding-side convex members located on the outer side in the width direction hits the pair of winding-side convex members located on the inner side in the width direction from the inside, whereby the opening / closing body in which the upper layer is sequentially wound on the lower layer is the upper layer. The opening / closing body of the lower side opening / closing body is fitted in the winding-side convex member and the winding-side convex member, and the widthwise displacement is restricted, and the widthwise displacement becomes difficult and It is possible to wind it uniformly.

  According to the structure of the opening / closing body according to claim 3 of the present invention, even if the opening / closing body is wound and laminated in a plurality of layers, the overlapping portion of the winding inner side convex member and the winding side outer side convex member and the retainer are prevented from coming off. Since the height of the overlapping portion of the members from the outer peripheral surface of the winding shaft becomes equal, the opening / closing body can be prevented from being thickly wound in a part in the width direction, and wrinkles and misalignment of the opening / closing body can be avoided. Can be less likely to occur.

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

According to the structure of the opening and closing member according to claim 1, wherein according to the present invention, the winding inner convex member and the roll outer Gawatotsu member provided on the edge of the closing member is positioned in the guide rails, are covered by the guide rail Therefore, the winding inner convex member and the outer winding convex member can be expected to be protected from external force, dust, and the like by the guide rail, and the appearance of the opening / closing body can be improved.

FIG. 1 is an overall perspective view of a shutter device including the structure of an opening / closing body according to the first embodiment of the present invention. FIG. 3 is a front view of the shutter device shown in FIG. 1 when the opening / closing body is closed. FIG. 3 is a sectional view taken along line AA of FIG. 2. It is an important section expanded sectional view of one edge of an opening and closing body which was wound up by a winding shaft. FIG. 9 is an enlarged cross-sectional view of a main part when the height of the convex member is smaller than that of the retaining member. FIG. 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 a wing-shaped portion. FIG. 7 is a plan sectional 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. FIG. 6 is a perspective view of a wing-shaped portion provided with a tooth row as a retaining member. FIG. 10 is a plan sectional view of FIG. 9. FIG. 7 is a schematic side view of a shutter device according to a second embodiment that includes a slack prevention mechanism near the center of the winding shaft. FIG. 12 is a schematic side view of the shutter device shown in FIG. 11 in a state where the open / close body is wound up. It is a schematic side view which shows an example of a structure with which the belt winding part was provided in the different position. It is a front view of FIG. It is a side view of a shutter device according to a third embodiment including a guide shaft.

Embodiments according to the present invention will be described below with reference to the drawings.
1 is an overall perspective view of a shutter device 13 having the structure of an 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. 1 when the opening / closing body is closed.
The structure of the opening / closing body according to the present embodiment is preferably used for a shutter device 13 that opens / closes a building opening 15, a compartment of a refrigerating / refrigerating facility, an entrance / exit, etc. by using, for example, a sheet-like shutter curtain 11 as the opening / closing body. it can. The opening / closing body may be a slat curtain, a screen, or the like. The structure of the shutter curtain 11 mainly includes a winding shaft 17, a retaining member 35, a winding inner convex member 19, and a winding outer convex member 21.

  A shutter curtain storage unit 23 is attached to the upper edge portion of the building opening 15. The shutter curtain storage portion 23 stores the winding shaft 17 which is rotated by an electric opening / closing device (not shown). The shutter curtain storage section 23 has a curtain entrance / exit section (not shown) on the lower surface. A pair of guide rails 25 are connected and fixed to the building opening 15 with the curtain entrance / exit portion interposed therebetween.

  The guide rails 25 are separated from each other across the building opening 15 and are substantially vertical and extend in the vertical direction (vertical direction in FIG. 2). Each of the guide rails 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 generally dovetail shape with its groove edge narrowed and widened. The groove edge width of the guide rail groove 27 is formed to be slightly wider than the thickness of the shutter curtain 11. In the shutter curtain 11, the edge portion 29 or the wing-shaped portion 31 is inserted into the guide rail groove 27, and the retaining member 35 is arranged in the inner space 33 of the guide rail groove 27. As a result, the edge portions 29 on both sides of the shutter curtain 11 are movable in the vertical direction by the guide rails 25, and are retained and retained.

  The shutter curtain 11 is wound around the winding shaft 17, and the edges 29 at both ends are arranged in the guide rail grooves 27 to open and close the pair of guide rails 25. In the present embodiment, the up and down movement is guided to move the building. The opening 15 is opened and closed.

  In the present embodiment, the shutter curtain 11 is a sheet curtain, and this sheet curtain covers a cloth screen, a soft resin sheet such as vinyl chloride or urethane, or a cloth screen with resin, rubber or a rubber-like substance. A sheet or the like formed in this manner can be used. When used for fire prevention, smoke prevention, or other disaster prevention purposes, for example, silica cloth or glass cloth, or a flame-retardant or fire-resistant coating material as a flame-retardant coating material, or sprayed or coated with or impregnated with a waterproof coating material It is possible to preferably use a pottery. Further, the sheet curtain may be combined with a reinforcing metal such as a wire mesh or a resin wire rod. In general, many opaque sheet curtains are used, but in order to provide daylight and transparency, a window having a light-transmitting property is appropriately provided, or a sheet material having a light-transmitting property is used. It may be something.

FIG. 3 is a sectional view taken along line AA of FIG.
The retaining members 35 are provided on the left and right edges 29 on both sides of the shutter curtain 11 in the width direction. In the present embodiment, the retaining member 35 is formed at the end of the strip-shaped wing-shaped portion 31 fixed along the edge portion 29. The wing-shaped portion 31 can be formed of a resin material. The wing-shaped 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, for example, as an engagement bulge that is continuous along the extending direction of the wing-shaped portion 31. The engagement bulge 35 has a circular bulge in a plan sectional view, and has a so-called bead shape in which the circular cross section is continuous. The engagement bulge 35 engages with the guide rail 25 by being inserted into the guide rail groove 27 from the upper end of the guide rail 25. As a result, the engagement bulge 35 movably supports the edge portions 29 on both sides of the shutter curtain 11 on the guide rail 25. The retaining member 35 is for preventing the edge portions 29 on both sides of the shutter curtain 11 from coming out of the guide rail 25. However, when a certain amount of strong 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 engaging bulge 35 is formed on the wing-shaped portion 31 fixed to the edge portion 29 of the shutter curtain 11 will be described. It may be formed directly on the edge portion 29 of the.

  The winding inner side convex member 19 is provided on the winding inner surface 37 of the edge portion 29 of the shutter curtain 11 along the extending direction of the edge portion 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 projecting edges along the extending direction of the projecting tip of the winding-side 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 semielliptical shape, a triangular shape, a pentagonal shape, or the like in a plan sectional view.

  The winding-side convex member 21 is arranged on the winding outer surface 41 of the edge portion 29 of the shutter curtain 11 along the extending direction of the edge portion 29 and with respect to the winding-side convex member 19 in the width direction of the shutter curtain 11 (left and right in FIG. 3). Direction) and the position is shifted. A pair of parallel projecting edges along the extending direction of the projecting tip of the winding outer side convex member 21 becomes a chamfered portion 39 chamfered by the R surface. The winding-side convex member 21 is in contact with the winding-side convex member 19 of the edge portion 29 wound on the outside in the width direction of the shutter curtain 11. As a result, the winding-side convex member 21 regulates the winding deviation of the shutter curtain 11 that is wound in the upper layer in the width direction.

  In the shutter curtain 11, the pair of inner winding convex members 19 provided on the inner winding surface 37 of each of the left and right edge portions 29 is replaced by the pair of outer winding convex member 21 provided on the outer winding surface 41 of each of the left and right edge portions 29. On the other hand, it is arranged inside the width direction of the shutter curtain 11, in other words, near the center of the shutter curtain 11 in the width direction. That is, in the state of being wound around the winding shaft 17, the pair of left and right winding-side protruding members 21 are positioned so as to sandwich the pair of left and right winding-inside protruding members 19 inside. Note that, conversely, the pair of right and left winding inner side convex members 19 may be arranged outside the pair of left and right winding side outer side protruding members 21 in the width direction of the shutter curtain 11.

FIG. 4 is an enlarged cross-sectional view of a main portion of one edge portion 29 of the shutter curtain 11 wound around the winding shaft 17.
Further, in the shutter curtain 11, the height dimension H2 from at least one edge portion 29 of the winding inner side convex member 19 and the winding outer side convex member 21 is substantially the same as the height dimension H1 of the engaging bulge 35 in the same direction. Is formed in. In the present embodiment, the wing-shaped portion 31 fixed to the edge portion 29 is provided with the engagement bulge 35, and the edge portion 29 to which the wing-shaped portion 31 is fixed is a member having a predetermined thickness, so The height dimension H2 of the inner convex member 19 and the winding outer convex member 21 is the same as the height (diameter) dimension H1 of the engagement bulge 35 minus the thickness t of the edge portion 29 (H2 = H1-t). Is becoming As a result, when the shutter curtain 11 is wound around the winding shaft 17, the winding deviation is regulated by the winding inner side convex member 19 and the winding outer side convex member 21, and the winding diameter on the edge portion 29 side is stabilized.

FIG. 5 is an enlarged cross-sectional view of an essential part when the height of the convex member is smaller than that of the retaining member.
In the structure of the shutter curtain 11, for example, the height dimension H2 of the winding inner side convex member 19 or the winding outer side convex member 21 may be smaller than the height dimension H1 of the engagement bulging strip 35. In this case, in the shutter curtain 11, the wing-shaped portion 31 bends as shown in FIG. 5, but the winding inner side convex member 19 and the winding outer side convex member 21 are in contact with each other, so that the shutter curtain 11 is rolled and engaged so as to avoid winding flow. 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-shaped portion 31, and FIG. 7 is a plan sectional view of the integrally molded product shown in FIG.
As shown in FIG. 6, the structure of the shutter curtain 11 is such that the engagement bulge 35 is formed on the wing-shaped portion 31 extending along the edge portion 29, and the winding inner convex member 19 and the winding outer convex member 21 are It may be integrally formed with the wing-shaped portion 31. That is, the bulging portion 31 may be configured such that the engagement bulging strip 35, the winding inner side convex member 19, and the winding outer side convex member 21 are integrally formed, for example, as an extruded product. In this configuration example, as shown in FIG. 7, the wing-shaped portion 31 is attached to the edge portion 29 of the shutter curtain 11, so that the winding inner side convex member 19 and the winding outer side convex member 21 and the engaging bulge 35 are simultaneously formed. The attachment is completed, and the respective arrangement positions are set by fixing the wing-shaped portion 31 to the edge portion 29.

FIG. 8 is a plan sectional view showing an example of a guide rail shape that hides the convex member.
Further, in the structure of the shutter curtain 11, the winding inner side convex member 19 and the winding outer side convex member 21 may be arranged inside the guide rail 43 and covered by 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 that cover the winding inner convex member 19 and the outer winding convex member 21 of the edge portion 29. In this guide rail 43, the pair of side plate portions 45 form a deep wing portion accommodation groove 47. An inner rail 49 that engages with the engagement bulge 35 is fixed to the inner side of the wing-shaped portion accommodation groove 47. As a result, in the shutter curtain 11, the winding inner side convex member 19 and the winding outer side convex member 21 are hidden by the pair of side plate portions 45 of the guide rail 43. From this, it can be expected that the winding inner side convex member 19 and the winding outer side convex member 21 are protected by the guide rail 43 from external force, dust and the like. In the example shown in FIG. 8, the bulging portion 31 is integrally formed with the engaging bulging strip 35, the winding inner side convex member 19, and the winding outer side convex member 21, and is fixed to the edge portion 29. Also 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 pair of side plate portions 45 of the guide rail 43 should deeply form the wing portion accommodating groove 47. You can get the same effect with.

9 is a perspective view of the wing-shaped portion 31 provided with the engagement tooth row 51 as a retaining member, and FIG. 10 is a plan sectional view of FIG.
Further, in the structure of the shutter curtain 11, in place of the engaging bulging strip 35, for example, a fastener tooth row 51 of a fastener can be used at the edge portion 29 of the shutter curtain 11 as a retaining member. The engagement tooth row 51 can be configured by a plurality of engagement elements 53 or a spiral linear engagement body. The engagement tooth row 51 is formed to be larger than the groove edge width of the guide rail groove 27 of the guide rail groove 27. In the shutter curtain 11, the engagement tooth rows 51 of the left and right edges 29 are arranged in the inner space 33 of the guide rail groove 27, so that the shutter curtain 11 is prevented from coming off the guide rail 25. The shutter curtain 11 can easily and inexpensively continuously form a high-strength retaining member on the edge portion 29 of the thin shutter curtain 11 by employing the tooth row 51. In the example of the coupling tooth row 51, as shown in FIG. 9, the winding inner side convex member 19 and the winding outer side convex member 21 are integrally formed on the blade-shaped portion 31, and the coupling tooth row 51 is formed on the blade-shaped portion 31. Alternatively, although not shown, the wing-shaped portion 31 provided with the winding inner side convex member 19 and the winding outer side protruding member 21 is provided on the front and back surfaces of the edge portion 29 of the shutter curtain 11, and the wing-shaped portion 31 including the coupling tooth row 51 is provided. It may be configured to be provided on the edge portion 29. Further, the retaining member composed of the tooth row 51 is also for preventing the edge portions 29 on both sides of the shutter curtain 11 from coming out of the guide rail 25, but when a certain strong pressure is applied to the shutter curtain 11. In order to prevent the shutter curtain 11 from being damaged, the engagement tooth row 51, which is the retaining member, may be configured to be able to be removed from the guide rail 25.

  Further, although not shown in the drawing, instead of the engagement bulging line 35, a retaining member constituted by a bolt and nut or a retaining wire is used for the edge portion 29 of the shutter curtain 11, and the guide rail 25 It is also possible to have a configuration in which the omission of the gap is restricted.

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 on 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. The shutter curtain 11 is first wound around the winding shaft 17 once, and then, as shown in FIG. 4, the shutter curtain 11 is wound so as to be an upper layer on an already wound lower layer.

  When the mounting start position is shorter than the circumferential length of the winding shaft 17 from the position where the shutter curtain 11 is fixed to the winding shaft 17, the winding inner convex member 19 directly contacts the outer peripheral surface of the winding shaft 17. It is rolled up. When the mounting start position of the winding-inside convex member 19 is longer than the circumferential length of the winding shaft 17 from the position where the shutter curtain 11 is fixed to the winding shaft 17, the shutter curtain 11 wound around the winding shaft 17 is wound. It is hit and rolled. That is, the mounting start position of the winding-inside convex member 19 may be shorter or longer than the circumferential length of the winding shaft 17. In addition, the winding inside convex member 19 and the winding outside convex member 21 may be set at the same mounting start position on the front and back of the shutter curtain 11 or may be set differently.

  It should be noted that it is preferable to form a recess (not shown) on the outer periphery of the winding shaft 17 into which the winding inner convex member 19 of the winding inner surface 37 is fitted. As a result, the first winding-inside 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.

  The outer surface of the shutter curtain 11 wound on the lower layer is the outer winding surface 41. The shutter curtain 11 is sequentially wound by the rotation of the winding shaft 17, so that the inner winding surface 37 of the upper shutter shutter curtain 11 is wound on the outer winding surface 41 of the lower layer which has already been wound. . At this time, the winding-side convex member 21 is continuously provided in the circumferential direction on the edge portion 29 of the lower winding outer surface 41. When the upper layer of the shutter curtain 11 is wound, the inner winding convex member 19 provided on the edge portion 29 of the inner winding surface 37 of the upper layer contacts the lower winding outer convex member 21 in the width direction. When the winding-side convex member 21 and the winding-side convex member 19 contact each other, the shutter curtain 11 restricts the relative movement of the upper layer and the lower layer in the contact direction, that is, in the direction along the winding shaft 17. That is, the winding deviation and winding flow in this direction are restricted, and the shutter curtain 11 is wound around the winding shaft 17 in a substantially straight line. This stabilizes the winding shape and reduces the occurrence of wrinkles and the like.

  Further, in the structure of the shutter curtain 11, the winding-side convex members 21 are arranged on the edge portions 29 on both sides of the winding outer surface 41 of the shutter curtain 11 which is wound first and is a lower layer. The winding inner surface 37 of the shutter curtain 11 of the upper layer is contacted and wound thereon. The winding inner surface 37 is provided with a pair of left and right winding inner convex members 19 on the left and right edges 29. When the winding inner surface 37 contacts the lower winding outer surface 41, the shutter curtain 11 of the upper layer 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. As a result, in the shutter curtain 11 in which the upper layer is sequentially wound on the lower layer, the shutter curtain 11 in the upper layer is less likely to be displaced in the width direction with respect to the shutter curtain 11 in the lower layer. In other words, it will be 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 if the shutter curtain 11 is laminated in a plurality of layers, the winding portion of the overlapping portion of the winding inner side convex member 19 and the winding outer side convex member 21 and the overlapping portion of the engaging bulging strip 35 is wound. The radial distance of the winding shaft 17, which is the height from the outer peripheral surface of the shaft 17, becomes equal. Accordingly, the shutter curtain 11 can be prevented from being thickly wound in a part in the width direction (see FIG. 4). As a result, it is possible to prevent wrinkles and misalignment of the shutter curtain 11 from occurring easily.

  Further, in the structure of the shutter curtain 11, the engagement bulging strip 35, the winding inner side convex member 19, and the winding outer side convex member 21 which are the retaining members may be integrally formed on the wing-shaped portion 31 by integral molding or the like. .. As a result, these members have a constant distance from each other at any position in the extending direction of the edge portion 29, and are arranged without variation. As a result, the winding-side convex member 21 and the winding-side 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 winding inner convex member 19 and the winding outer convex member 21 provided on the front and back surfaces of the edge portion 29 are covered with the guide rails 43. For example, when the winding inner convex member 19 and the winding outer convex member 21 on the front and back sides are located outside the guide rail 25, the side plate portion 45 that is a portion that covers the winding inner convex member 19 and the winding outer convex member 21. Are formed on the guide rail side. Alternatively, the guide rail groove 27 is deeply formed, and in this guide rail groove 27, both the engagement bulging portion 35 and the winding inner side convex member 19 and the winding outer side convex member 21 are arranged and covered. 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, the shutter device 55 having the structure of the shutter curtain 11 according to the second embodiment will be described.
FIG. 11 is a side view of the shutter device 55 according to the second embodiment having a slack prevention mechanism 57 near the center of the winding shaft 17, and FIG. 12 shows the open / close body winding state of the shutter device 55 shown in FIG. A side view, FIG. 13 is a side view showing an example of a configuration in which the belt winding section 59 is provided at a different position, and FIG. 14 is a front view of FIG. In the following description of each embodiment, the same members and parts as those shown in FIGS. 1 to 10 are designated by the same reference numerals, and duplicated description will be omitted.
The shutter device 55 is provided with a slack prevention mechanism 57 shown in FIG. The slack prevention mechanism 57 is provided with a belt winding section 59 at a substantially central portion in the extending direction of the winding shaft 17. A belt 61 is wound around the belt winding section 59. The front end of the belt 61 in the payout 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. Further, the belt winding section 59 includes a mechanism capable of winding the belt 61 when the shutter curtain 11 is unrolled. In the shutter curtain storage portion 23, the belt winding section 59 may be arranged above the winding shaft 17 as shown in FIG. 11, but may be arranged below the winding shaft 17 as shown in FIG. Good.
Since the belt 61 is attached to a substantially central portion in the width direction of the shutter curtain 11 wound around the winding shaft 17, the winding inner convex member 19 and the outer winding convex member 21 do not interfere with each other (in other words, the belt 61 is disposed). It will be attached to the position).

  The slack prevention mechanism 57, in the shutter curtain housing portion 23, is wound around the shutter curtain 11 at a position substantially in the center in the width direction, and the belt 61 is wound at the same time when the shutter curtain 11 is wound, so that the slack is easily generated. Stabilize the winding shape of the central part of. The thickness of the belt 61 is set to a value close to the height dimension H1 of the engagement bulge 35. The slack prevention mechanism 57 has a length corresponding to the distance between the shutter curtains when the engagement bulging strips 35 are stacked, and has a thickness so that the central portion of the shutter curtain 11 can be wound without slack.

  When the shutter device has a large frontage width (curtain width length) of 6 m or the like, slack occurs in the central portion of the shutter device, and the straight take-up shaft 17 has a lower side than the take-up shaft 17 in the take-up state. The shutter curtain 11, which becomes the object, hangs down by its own weight. Therefore, the upper side of the winding state is close to the center of the winding shaft 17, causing wrinkles on the shutter curtain 11. This wrinkle increases more as the winding progresses. Therefore, the shutter device 55 is provided with 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 in the central portion is suppressed.

  According to the shutter device 55, the winding shape is stabilized by winding the belt 61 around the center of the wound shutter curtain 11. As a result, the shutter curtain 11 moves straight during winding and unwinding. Therefore, the winding shape can be further stabilized by configuring the winding inner side convex member 19 and the winding outer side convex member 21 together. As a result, wrinkles on the shutter curtain 11 can be suppressed, and the life of the shutter curtain 11 can be further extended.

Next, the shutter device 63 according to the third embodiment having the structure of the shutter curtain 11 will be described.
FIG. 15 is a side view of the shutter device 63 including the guide shaft 65 according to the third embodiment.
The shutter device 63 includes a drive shaft 67 and a guide shaft 65 in the shutter curtain storage section 23. The drive shaft 67 is rotated by an electric opening / closing device (not shown), and winds / unwinds the shutter curtain 11. The shutter curtain 11 that is extended by the drive shaft 67 is stretched over the guide shaft 65. The shutter curtain 11 is provided with the winding-inside convex member 19 and the winding-outside protruding member 21 described above. The guide shaft 65 is arranged substantially directly above the guide rail 25. Further, the guide shaft 65 is provided at a position higher than the drive shaft 67 by the rotation center by the dimension H.

  In this shutter device 63, when the drive shaft 67 is rotated and the shutter curtain 11 is wound around the drive shaft 67, or when it is fed out, the outer diameter of the shutter curtain 11 wound around the drive shaft 67 changes. The shutter curtain 11 that is unwound from the wound state in which the outer diameter changes is stretched over the guide shaft 65, and the unwinding direction is changed vertically downward in the tangential direction of the guide shaft 65. That is, in the shutter device 63, since the shutter curtain 11 is hung over the guide shaft 65, the shutter curtain 11 is not affected by the change in the outer diameter (roll diameter) of the shutter curtain winding body wound around the drive shaft 67. Is always inserted straight into the guide rail 25.

  Further, 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, which is stretched between the drive shaft 67 and the guide shaft 65, is inclined so that tension due to its own weight acts. In the shutter curtain 11, when the drive shaft 67 and the guide shaft 65 are arranged horizontally, for example, vertical gravity acts on the shutter curtain 11 which is horizontally arranged between the drive shaft 67 and the guide shaft 65, Looseness occurs. On the other hand, in the shutter device 63, the self-weight acts obliquely, so that the shutter curtain 11 is less likely to loosen, and in particular, the tension due to the self-weight from the guide shaft 65 to the guide rail 25 side and the guide shaft 65 to the drive shaft 67. The pulling force in the winding direction on the side distributes the vertical gravity between the guide shaft 65 and the drive shaft 67, suppressing the occurrence of slack and stabilizing the winding shape.

  According to this shutter device 63, the slack of the shutter curtain 11 is reduced and the drive shaft 67 is wound straight. Further, the shutter curtain 11 also enters the guide rail 25 in a straight line. As a result, the shutter curtain 11 has a stable winding shape around the drive shaft 67. The load applied to the drive shaft 67 by the shutter curtain 11 whose shape is unstable is also reduced. As a result, in addition to the same effect as the above by the winding inner side convex member 19 and the winding side convex member 21, the wrinkles of the shutter curtain 11 are further suppressed, that is, the slack is suppressed in the width direction of the shutter curtain 11, so that the wrinkles are suppressed. It is possible to prevent the occurrence of such a phenomenon and to further extend the life of the shutter curtain 11.

  Therefore, in the left and right edge portions of the shutter curtain 11, the winding inner side convex member 19 and the winding side outer side convex member 21 suppress the winding displacement which is the displacement in the width direction of the shutter curtain 11 and regulate the winding flow. The curtain 11 is wound straight around the winding shaft 17, the winding shape is stable, and the occurrence of wrinkles is reduced. As a result, the occurrence of stains on the shutter curtain 11 is reduced, the appearance is prevented from being impaired, and residual distortion is suppressed, so that the life of the shutter curtain 11 can be extended. Further, with the configuration including the slack prevention mechanism 57 and the guide shaft 65, the occurrence of slack can be further suppressed, the winding shape can be stabilized, wrinkles can be prevented, and the life of the shutter curtain 11 can be extended.

11 ... Opening and closing body (shutter curtain)
17 ... Winding shaft 19 ... Winding inside convex member 21 ... Winding outside convex member 25 ... Guide rail 29 ... Edge portion 31 ... Wing portion 35 ... Fall-off preventing member (engaging bulging strip)
37 ... Inner surface of winding 41 ... Outer surface of winding

Claims (6)

A winding shaft that winds the opening and closing body,
A retaining member which is provided at both edges in the width direction of the opening / closing body, engages with a guide rail, and movably supports the edge on the guide rail,
A winding inner side convex member provided on the winding inner surface of the edge portion along the extending direction of the edge portion,
The winding inner side of the edge portion, which is provided on the winding outer surface of the edge portion along the extending direction of the edge portion and displaced in the width direction of the opening / closing body with respect to the winding inner side convex member, and is wound on the outside. A winding-side convex member that restricts winding deviation in the width direction of the opening / closing body by contacting a convex member in the width direction of the opening / closing body,
Equipped with,
The guide rail has a substantially U-shaped cross section, and an inner rail is fixed to an inner wall surface of the guide rail on the inner side, and the inner rail is movably provided with the retaining member formed at the leading edge of the edge portion. A structure of an opening / closing body, which is supported, and inside the both side plate portions of the guide rail, the winding inside convex member and the winding outside convex member are movably arranged and covered . The structure of the opening / closing body according to claim 1,
The structure of the opening / closing body, wherein the winding-inside convex member is disposed inside the winding-side protruding member in the width direction of the opening / closing body. The structure of the opening / closing body according to claim 1,
The height dimension from the front and back surfaces of the edge portion of at least one of the winding inner side protruding member and the winding outer side protruding member is formed to be substantially the same as the height dimension of the retaining member in the same direction. The structure of the opening and closing body. The structure of the opening / closing body according to any one of claims 1 to 3,
The retaining member is formed on a wing portion extending along the edge,
A structure of an opening / closing body, wherein the winding inner side convex member and the winding outer side convex member are integrally formed on the wing-shaped portion. The structure of the opening / closing body according to any one of claims 1 to 4,
The winding-side convex member and the winding-side convex member are formed in a substantially rectangular shape in a plan sectional view, and both parallel edge edges of the projecting tips are chamfered portions chamfered by R faces. The structure of the characteristic opening and closing body. The structure of the opening / closing body according to any one of claims 1 to 5,
A slack prevention mechanism for the opening / closing body is provided, wherein the slack prevention mechanism has a belt that is wound around a belt winding portion so as to be able to be wound out freely, and has a front end in the unwinding direction fixed to the opening / closing body,
The belt is provided at a position substantially in the center in the width direction of the opening / closing body, and at a position where it does not interfere with the winding-inside convex member and the winding-side protruding member provided on both edges in the width direction of the opening / closing body. The structure of the opening and closing body, which is characterized by

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