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JP-7854849-B2 - Suspension structure of the winding part of the opening/closing mechanism

JP7854849B2JP 7854849 B2JP7854849 B2JP 7854849B2JP-7854849-B2

Inventors

  • 小林 正典
  • 中崎 悠介
  • 猪俣 忠明

Assignees

  • 文化シヤッター株式会社

Dates

Publication Date
20260507
Application Date
20220506

Claims (7)

  1. A suspension structure for an opening/closing mechanism winding section, which connects an opening/closing mechanism that opens and closes an opening in a building with a winding shaft that winds up the opening/closing mechanism, using a fastening member. The winding shaft has a connecting groove along its axis on its outer surface and is formed as a hollow pipe with both ends of a plate material joined together . The connecting groove has a pair of ribs formed by folding and bending each of the opposing groove edges across the groove width, extending in a direction that narrows the groove width, and each being folded in opposite directions. A connecting body is inserted into the connecting groove, exposing fastening holes between the pair of ribs. The connecting body is prevented from falling out of the connecting groove by the pair of ribs and is movable in the direction along the axis. The connecting body is secured to the opening/closing body by a fastening member that penetrates the opening/closing body and fastens to the fastening hole. The connecting body has a groove outer plate portion that is positioned outside the connecting groove with the rib in between, and a groove inner plate portion that is positioned inside the connecting groove with the rib in between. The outer groove plate portion and the inner groove plate portion are integrally formed in a U-shape via a bent portion. The outer plate portion of the groove has through holes, and the inner plate portion of the groove has fastening holes formed coaxially with the through holes. The suspension structure for the winding part of an opening/closing body is characterized in that the fastening member is fastened to the fastening hole, thereby clamping the rib from both the inside and outside in the radial direction of the winding shaft by the outer clamping portion formed on the outer plate portion of the groove and the inner clamping portion formed on the inner plate portion of the groove.
  2. A suspension structure for an opening/closing mechanism winding section, which connects an opening/closing mechanism that opens and closes an opening in a building with a winding shaft that winds up the opening/closing mechanism, using a fastening member. The winding shaft has a connecting groove along its axis on its outer surface and is formed as a hollow pipe with both ends of a plate material joined together. The connecting groove has a pair of ribs formed by folding and bending each of the opposing groove edges across the groove width, extending in a direction that narrows the groove width, and each being folded in opposite directions. A connecting body is inserted into the connecting groove, exposing fastening holes between the pair of ribs. The connecting body is prevented from falling out of the connecting groove by the pair of ribs and is movable in the direction along the axis. The connecting body is secured to the opening/closing body by a fastening member that penetrates the opening/closing body and fastens to the fastening hole. The connecting body has a groove outer plate portion disposed on the outside of the connecting groove and a groove inner plate portion disposed on the inside of the connecting groove, The grooved outer plate portion has the fastening holes in the protruding portion that extends from the outer circumferential surface of the winding shaft. The groove inner plate portion is prevented from falling out of the connecting groove by the pair of ribs, and is provided at both longitudinal ends of the groove outer plate portion, and is formed in the shape of a protruding leg plate with a dimension approximately the same as the groove width of the connecting groove. The suspension structure for the winding part of the opening/closing body is characterized in that the suspension member of the opening/closing body is fixed to the connecting body by the fastening member which penetrates the suspension member and fastens to the fastening hole .
  3. A suspension structure for an opening/closing mechanism winding section, which connects an opening/closing mechanism that opens and closes an opening in a building with a winding shaft that winds up the opening/closing mechanism, using a fastening member. The winding shaft has a connecting groove along its axis on its outer surface and is formed as a hollow pipe with both ends of a plate material joined together. The connecting groove has a pair of ribs formed by folding and bending each of the opposing groove edges across the groove width, extending in a direction that narrows the groove width, and each being folded in opposite directions. A connecting body is inserted into the connecting groove, exposing fastening holes between the pair of ribs. The connecting body is prevented from falling out of the connecting groove by the pair of ribs and is movable in the direction along the axis. The connecting body is secured to the opening/closing body by a fastening member that penetrates the opening/closing body and fastens to the fastening hole. The connecting body is formed in the shape of a long strip along the axis, and is positioned inside the connecting groove, with its detachment from the connecting groove being restricted by the pair of ribs. The connecting body has a slit along the longitudinal direction, which is the fastening hole, formed between the pair of ribs. The suspension structure for the winding part of the opening/closing body is characterized in that the suspension member of the opening/closing body is fixed to the connecting body by the fastening member which penetrates the suspension member and screws into the slit, and the screwing of the fastening member widens the spacing of the slit, thereby widening and deforming the width of the connecting body within the connecting groove to be equal to the inner width of the connecting groove .
  4. A suspension structure for an opening/closing mechanism winding section, which connects an opening/closing mechanism that opens and closes an opening in a building with a winding shaft that winds up the opening/closing mechanism, using a fastening member. The winding shaft has a connecting groove along its axis on its outer surface and is formed as a hollow pipe with both ends of a plate material joined together. The connecting groove has a pair of ribs formed by folding and bending each of the opposing groove edges across the groove width, extending in a direction that narrows the groove width, and each being folded in opposite directions. A connecting body is inserted into the connecting groove, exposing fastening holes between the pair of ribs. The connecting body is prevented from falling out of the connecting groove by the pair of ribs and is movable in the direction along the axis. The connecting body is secured to the opening/closing body by a fastening member that penetrates the opening/closing body and fastens to the fastening hole. The connecting body is formed in the shape of a long strip along the axis, and is positioned inside the connecting groove, with its detachment from the connecting groove being restricted by the pair of ribs, and has the fastening hole located in the longitudinal center between the pair of ribs. At both ends of the connecting body in the longitudinal direction that straddle the fastening hole, a pair of claw portions are formed that protrude in the direction of rotation of the screw, which is the fastening member that is screwed into the fastening hole and rotated, and face the inner surface of the connecting groove. The suspension structure for the winding part of the opening/closing body is characterized in that the suspension member of the opening/closing body is fixed to the connecting body by the screw that passes through the suspension member and fastens to the fastening hole .
  5. The suspension structure for an opening/closing winding unit according to any one of claims 1 to 4, characterized in that the connecting groove protrudes inward as a convex portion on the inside of the winding shaft, and this convex portion engages with a recess formed on the outer surface of a wheel that is coaxially inserted into the inner circumference of the winding shaft and rotated.
  6. The suspension structure for the winding part of the opening/closing body according to any one of claims 1 to 4, characterized in that the pair of ribs have a continuous surface along the outer circumferential surface of the winding shaft and are formed to extend with the groove width narrowed in the direction along the outer circumferential surface.
  7. The suspension structure for the winding part of the opening/closing body according to any one of claims 1 to 4, characterized in that the pair of ribs have a continuous surface along the outer circumferential surface of the winding shaft and are formed to extend with the groove width narrowed in the direction along the outer circumferential surface.

Description

This invention relates to a suspension structure for the winding mechanism of an opening/closing body. In a suspension structure for an opening/closing body that opens and closes an opening in a building, the opening/closing body is attached to the outer circumference of a winding shaft via a suspension member. This structure is characterized by the fact that a continuous hook projection is integrally formed on the outer circumference of the winding shaft along its axial direction, and a hook formed on the suspension member is locked into this hook projection, while a screw passing through the suspension member is screwed and fixed to the aluminum winding shaft (see Patent Document 1). Japanese Patent Publication No. 2013-83100 This is an external perspective view of a window shutter device equipped with a suspension structure for the winding mechanism of the opening/closing body according to the first embodiment of the present invention.This is a front view showing a portion of the shutter storage area cut in half vertically.This is a side view of the winding shaft 17, which is part of the components constituting the suspension structure of the winding part of the opening/closing body according to the first embodiment of the present invention.Figure 3 is an exploded perspective view showing the connecting body detached from the connecting groove.(a) is an enlarged view of the main part of the connecting groove before the connecting body is fixed, and (b) is a cross-sectional view of (a) taken along line A-A.(a) is an enlarged view of the main part of the connecting groove to which the connecting body is fixed, and (b) is a cross-sectional view of (a) along line B-B.This is an exploded perspective view of a winding shaft equipped with a suspension structure for the winding part of an opening/closing body according to a second embodiment of the present invention.This is a magnified view of the main part of the connecting groove before the connecting body is fixed in place.This is a magnified view of the main part of the connecting groove to which the connecting body is fixed.This is an exploded perspective view of a winding shaft equipped with a suspension structure for the winding part of an opening/closing body according to a third embodiment of the present invention.This is a front view of the connecting groove before the connecting body is fixed in place.This is a front view of the connecting groove to which the connecting body is fixed.This is a side view of the connecting groove to which the connecting body is fixed.This is an exploded perspective view of a winding shaft equipped with a suspension structure for the winding part of an opening/closing body according to the fourth embodiment of the present invention.This is a front view of the connecting groove before the connecting body is fixed in place.This is a front view of the connecting groove to which the connecting body is fixed.This is a side view of the connecting groove to which the connecting body is fixed. Hereinafter, embodiments of the present invention will be described with reference to the drawings. [First Embodiment] Figure 1 is an external perspective view of a window shutter device 11 equipped with a suspension structure for the winding part of the opening/closing mechanism according to the first embodiment of the present invention. The suspension structure of the winding mechanism of the opening/closing body according to the first embodiment is a structure in which an opening/closing body 15 that opens and closes an opening 13 of a building and a winding shaft 17 (see Figure 2) that winds up the opening/closing body 15 are connected by a fastening member 19 (see Figure 3). The suspension structure of the winding mechanism of the opening/closing body is suitable for use in, for example, a window shutter device 11. The window shutter device 11 is installed on the outside of the sash window 21 that constitutes the window section of the house. An opening 13 is provided in the exterior wall of the house. The sash window 21 is installed in this opening 13. The window shutter device 11 has a shutter curtain, which is an opening/closing body 15. The shutter curtain 15 rises and falls on the outside of the exterior wall to cover the sash window 21. In this embodiment, the shutter curtain 15 is constructed by connecting multiple steel slats 23 that can improve fire resistance. The shutter curtain 15 is constructed by connecting multiple slats 23 in a windable planar shape by engaging the adjacent longitudinal edges of each slat. A base plate 25 is attached to the leading end of the shutter curtain 15 in the direction of extension. The base plate 25 rests on the lower frame 27 when the shutter curtain 15 is lowered. The shutter curtain 15 is guided up and down by a pair of guide rails 28, provided on either side of the sash window 21. The guide rails 28 extend in the direction of up and down movement of the shutter curtain 15, guiding the side