Hanging base structure of opening / closing body

Abstract

To provide a hanging base structure of an opening / closing body capable of suppressing abnormal noise and damage due to contact of slats by regulating displacement of the opening / closing body.SOLUTION: There is provided a hanging base structure of an opening / closing body which opens / closes an opening 13 of a building by winding / feeding the opening / closing body 15 that moves up / down along the opening 13 onto / from a plurality of wheels 25 provided above the opening 13 for rotation on a shaft 19, in which: the opening / closing body 15 is suspended from and held by an upper edge slat 33 connected to the uppermost end by an upper connecting section 41 being engaged with a lower connecting section 39 of a suspension base member 35 fixed to the wheels; regulating members 37 are fixed to both ends of the upper edge slat 33 in the longitudinal direction by being disposed at end portions of the upper edge slat with respect to outer end surfaces 55 at the lower connecting sections 39 of the suspension base members 35 attached to the wheels at both ends of the shaft; and the regulating members 37 have a base part 53 fixed to the upper edge slat 33, and a regulating part 57 formed into a bent shape getting over the upper connecting section 41 and abutting on the outer end surface 55 of the lower connecting section 39 of the suspension base member 35.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a suspension structure for an opening / closing body. [Background technology]

[0002] The shutter device is equipped with a winding part and an opening and closing body such as a shutter curtain. The shutter curtain is made up of multiple horizontal slats that are long in the width direction of an opening in a building such as a garage, and are connected in the vertical direction. The shutter curtain is made up of adjacent slats that are prevented from shifting or coming off from each other. The connection between the winding part and the upper edge of the shutter curtain becomes the hanging point.

[0003] The winding section is rotatably attached to a horizontal shaft installed above the opening. Both ends of the shaft are fixed to the building by brackets. If the shutter curtain shifts from its hanging point along the shaft, it will hit the brackets located on the outside left and right, causing abnormal noise and damage to each other. In addition, a shifted shutter curtain will come into contact with the left and right guide rails that guide the raising and lowering of the curtain, causing damage to each other.

[0004] In the shutter curtain fastening device disclosed in Patent Document 1, the hanging metal fittings are fixed in a state of abutting against the end metal fittings, thereby restricting the movement of the shutter curtain in the width direction, and this restriction prevents the shutter curtain from shifting when being rolled up or down. In the method of connecting slats in architectural shutters disclosed in Patent Document 2, the lower interlocking part of one slat is connected to the upper interlocking part of another slat, and the connecting parts of both slats are placed on the top of a female die and crimped with a punch. This crimping process engages the lower interlocking part with the upper interlocking part to prevent the slats from shifting sideways. In the structure of the shutter curtain disclosed in Patent Document 3, a slip-out prevention member (the "wind-resistant hook" in the document) is fixed to the end face of the slat, and a restricting piece provided on the slip-out prevention member is brought into contact with the end faces of the upper engaging connection part and the lower engaging connection part to prevent slip-out and shifting. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 2-53492 [Patent Document 2] Japanese Patent Application Publication No. 4-368590 [Patent Document 3] JP 2016-40437 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the shutter curtain fastening device of Patent Document 1 has the disadvantage that the end metal fittings are attached to the end faces of the uppermost slats, so that the end metal fittings come close to the brackets located on the left and right outer sides of the shaft, and are likely to hit the brackets. In other words, abnormal noise is likely to occur, and they are likely to be damaged. In addition, when the end metal fittings are attached to the end faces of the slats, it is difficult to remove and attach the end metal fittings from the front and back sides of the opening and closing body during maintenance such as replacing the slats, and there is a problem that the workability is poor. In addition, the slat connecting method of Patent Document 2 requires crimping after connecting the slats, but in the case of fireproof slats, the thickness of the steel plate becomes large, for example, 0.8 mm or more, making deformation (crimping) difficult. In addition, the structure of the shutter curtain of Patent Document 3 has the disadvantage that the wind-resistant hooks are attached to the end faces of the slats, so that it is similar to Patent Document 1 in that it comes close to the brackets located on the left and right outer sides of the shaft, and depending on the position of the wheel that constitutes the winding part, the hanging hardware and the end face of the slat do not match, making it impossible to use it at the hanging point.

[0007] The present invention has been made in consideration of the above-mentioned situation, and its purpose is to provide a hanging structure for an opening / closing body that avoids the structural disadvantage that makes end metal objects more likely to hit the bracket, allows for easy work, and can suppress abnormal noise and damage caused by contact with the slats by regulating the misalignment of the opening / closing body without plastic processing, even for slats made of thick steel plate. [Means for solving the problem]

[0008] Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. The suspension structure of an opening-and-closing body according to claim 1 of the present invention is a suspension structure of an opening-and-closing body that opens and closes an opening 13 of a building by lifting and lowering the opening 15 around a plurality of wheels 25 that are rotatably attached to a shaft 19 provided above the opening 13, and that opens and closes the opening 13, The opening / closing body 15 is suspended by an upper edge slat 33 connected to the uppermost end being slid laterally to engage with a lower connecting portion 39 of a hanging member 35 fixed to each of the wheels 25, and an upper connecting portion 41 is slid laterally to engage with the lower connecting portion 39 of the hanging member 35, A restricting member 37 is fixed to each of the longitudinal ends of the upper edge slat 33, the restricting member 37 being disposed at the end of the upper edge slat 33 closer to the outer end surface 55 of the lower connecting portion 39 of the hanging member 35 attached to the two wheels 25 arranged at both ends of the shaft 19, and restricting the sliding of the opening / closing body 15 in the direction along the shaft 19. The regulating member 37 is characterized by having a base 53 fixed to the plate surface 51 of the upper edge slat 33, and a regulating portion 57 formed in a bent or curved shape that extends from the base 53 over the upper connecting portion 41 of the upper edge slat 33 and abuts against the outer end surface 55 of the lower connecting portion 39 of the hanging member 35.

[0009] In this hanging structure of the opening / closing body, an upper edge slat 33, which is connected to the uppermost end of the opening / closing body 15, is connected to a hanging member 35 fixed to the outer periphery of the wheel 25. The upper edge slat 33 is suspended from the hanging member 35 by an upper connecting portion 41 sliding laterally to engage with a lower connecting portion 39 of the hanging member 35. The wheels 25 on both the left and right ends are located closer to the center in the longitudinal direction of the shaft 19 than the ends of the upper edge slats 33. In other words, the ends of the upper edge slats 33 extend outward toward both ends of the shaft 19 than the hanging members 35 fixed to the wheels 25 on both the left and right ends. That is, in the hanging structure of this opening / closing body 15, the end faces of the hanging members 35 and the upper edge slats 33 do not coincide. Here, the end portions of the upper edge slats 33 that extend outward in the direction along the shaft 19 than the hanging members 35 are referred to as slat side edges 49. In the hanging structure of the opening / closing body, a restricting member 37 is fixed to a plate surface 51 of a slat side edge portion 49 of an upper edge slat 33. The restricting member 37 has a base 53 fixed to the plate surface 51 of the upper edge slat 33, and a restricting portion 57 formed in a bent shape, for example a U-shape, or a curved shape, for example a substantially semi-cylindrical shape, that extends from the base 53 over the upper connecting portion 41 of the upper edge slat 33 and is positioned closer to the slat side edge 49, which is the end portion of the upper edge slat 33, than to an outer end surface 55 of the hanging member 35. In the opening / closing body 15, when the upper edge slat 33 is suspended from the hanging member 35, the upper connecting portion 41 can slide laterally relative to the lower connecting portion 39 of the hanging member 35, causing the hanging member to tilt to one side. Therefore, in the hanging structure of the opening / closing body, the restricting portion 57 of the restricting member 37 fixed to the left and right slat side edges 49 of the upper edge slat 33 faces the outer end surface 55 of the lower connecting portion 39 of the hanging member 35 engaged with the upper connecting portion 41 in a state where it has climbed over or straddled the upper connecting portion 41 of the upper edge slat 33. In other words, the restricting portion 57 formed in a curved shape such as a U-shape or a substantially semi-cylindrical shape is configured to climb over the upper connecting portion 41 and abut only against the outer end surface 55 of the lower connecting portion 39 engaged so as to cover the upper connecting portion 41. The opening / closing body 15 is arranged so that the regulating members 37 fixed to the slat side edge portions 49 on both the left and right sides of the upper edge slat 33 are clamped from the left and right outside to the outer end faces 55 of the lower connecting portions 39 of the hanging members 35 fixed to the left and right wheels 25, thereby regulating left and right movement, i.e., misalignment and leaning to one side. In this hanging structure of the opening / closing body, the regulating member 37 is fixed to the slat side edge portion 49 of the upper edge slat 33, so that the regulating member 37 does not come close to the brackets 23 located on the left and right outside of the shaft 19, thereby avoiding the disadvantage that the regulating member 37 is likely to come into contact with the brackets 23. In addition, since the regulating member 37 is fixed to the plate surface 51 of the slat side edge portion 49, a series of adjustment operations from positioning the opening / closing body 15 in the left-right direction to fixing the regulating member can be easily performed from the front and back sides of the opening / closing body 15. Furthermore, in this hanging structure of the opening / closing body, the regulating member 37, which is a metal fitting, is fixed to the upper edge slat 33 of the opening / closing body 15, so that the upper edge slat 33 of the opening / closing body 15 can be prevented from shifting or coming off even when used with thick fire-resistant steel plate slats without the need for crimping.

[0010] The suspension structure of an opening-and-closing body according to claim 2 of the present invention is a suspension structure of an opening-and-closing body that opens and closes an opening 13 of a building by lifting and lowering the opening 15 around a plurality of wheels 25 that are rotatably attached to a shaft 19 provided above the opening 13, and that opens and closes the opening 13, The opening / closing body 15 is suspended by an upper edge slat 33 connected to the uppermost end being slid laterally to engage with a lower connecting portion 39 of a hanging member 35 fixed to each of the wheels 25, and an upper connecting portion 41 is slid laterally to engage with the lower connecting portion 39 of the hanging member 35, A restricting member 37 is fixed to each of the longitudinal ends of the upper edge slat 33, and restricts the sliding of the opening / closing body 15 in the direction along the shaft 19 by contacting the outer end surface 55 of the lower connecting portion 39 of the hanging member 35 attached to the two wheels 25 arranged on both ends of the shaft 19. The regulating member 37 is characterized by having a base 53 fixed to the plate surface 51 of the upper edge slat 33, and a regulating portion 57 formed in a bent or curved shape that extends from the base 53 over the upper connecting portion 41 of the upper edge slat 33 and abuts against the outer end surface 55 of the lower connecting portion 39 of the hanging member 35.

[0011] In this hanging structure of the opening / closing body, an upper edge slat 33, which is connected to the uppermost end of the opening / closing body 15, is connected to a hanging member 35 fixed to the outer periphery of the wheel 25. The upper edge slat 33 is suspended from the hanging member 35 by an upper connecting portion 41 sliding laterally to engage with a lower connecting portion 39 of the hanging member 35. The wheels 25 on both the left and right ends are located closer to the center in the longitudinal direction of the shaft 19 than the ends of the upper edge slats 33. In other words, the ends of the upper edge slats 33 extend outward toward both ends of the shaft 19 than the hanging members 35 fixed to the wheels 25 on both the left and right ends. That is, in the hanging structure of this opening / closing body 15, the end faces of the hanging members 35 and the upper edge slats 33 do not coincide. Here, the end portions of the upper edge slats 33 that extend outward in the direction along the shaft 19 than the hanging members 35 are referred to as slat side edges 49. In the hanging structure of the opening / closing body, the restricting member 37 is fixed to a plate surface 51 of the slat side edge portion 49 of the upper edge slat 33. The restricting member 37 has a base 53 fixed to the plate surface 51 of the upper edge slat 33, and a restricting portion 57 formed in a bent shape, for example a U-shape, or a curved shape, for example a substantially semi-cylindrical shape, that extends from the base 53 over the upper connecting portion 41 of the upper edge slat 33 and abuts against an outer end surface 55 of the hanging member 35. In the opening / closing body 15, when the upper edge slat 33 is suspended from the hanging member 35, the upper connecting portion 41 can slide laterally relative to the lower connecting portion 39 of the hanging member 35, causing the hanging member to tilt to one side. Therefore, in the hanging structure of the opening / closing body, the restricting portion 57 of the restricting member 37 fixed to the left and right slat side edges 49 of the upper edge slat 33 comes into contact with the outer end surface 55 of the lower connecting portion 39 of the hanging member 35 engaged with the upper connecting portion 41 in a state where it has climbed over or straddled the upper connecting portion 41 of the upper edge slat 33. In other words, the restricting portion 57 formed in a curved shape such as a U-shape or a substantially semi-cylindrical shape is configured to climb over the upper connecting portion 41 and thus come into contact only with the outer end surface 55 of the lower connecting portion 39 engaged so as to cover the upper connecting portion 41. The opening / closing body 15 is regulated against left and right movement, i.e., against misalignment or leaning, by abutting the outer end faces 55 of the lower connecting parts 39 of the hanging members 35 fixed to the left and right wheels 25 from the outside on the left and right sides in a clamping manner using the regulating members 37 fixed to the slat side edge portions 49 on both the left and right sides of the upper edge slat 33. In this hanging structure of the opening / closing body, the regulating member 37 is fixed to the slat side edge portion 49 of the upper edge slat 33, so that the regulating member 37 does not come close to the brackets 23 located on the left and right outside of the shaft 19, thereby avoiding the disadvantage that the regulating member 37 is likely to come into contact with the brackets 23. In addition, since the regulating member 37 is fixed to the plate surface 51 of the slat side edge portion 49, a series of adjustment operations from positioning the opening / closing body 15 in the left-right direction to fixing the regulating member can be easily performed from the front and back sides of the opening / closing body 15. Furthermore, in this hanging structure of the opening / closing body, the regulating member 37, which is a metal fitting, is fixed to the upper edge slat 33 of the opening / closing body 15, so that the upper edge slat 33 of the opening / closing body 15 can be prevented from shifting or coming off even when used with thick fire-resistant steel plate slats without the need for crimping.

[0012] The suspension structure for an opening-closing body according to claim 3 of the present invention is the suspension structure for an opening-closing body according to claim 1 or 2, The hanging member 35 is characterized in that it is formed by cutting the slat 17 constituting the opening / closing body 15 into a short length.

[0013] In this suspension structure for an opening / closing body, the suspension member 35 is formed by cutting the slat 17 into a short length. The opening / closing body 15 used in the suspension structure for an opening / closing body is constructed by connecting a plurality of horizontally long slats 17, each long in the width direction of the opening 13, in the vertical direction. Each slat 17 has the same shape in cross section perpendicular to the longitudinal direction. Therefore, by cutting another slat 17 of the same shape as the slat 17 used in manufacturing the opening / closing body 15 into the desired short length and fixing it to the wheel 25 as the suspension member 35, it is possible to provide the wheel 25 with a lower connecting portion 39 that engages with the upper connecting portion 41 of the upper edge slat 33 without using a dedicated member.

[0014] The suspension structure for an opening-closing body according to claim 4 of the present invention is the suspension structure for an opening-closing body according to claim 1 or 2, The base 53 of the regulating member 37 has a predetermined length that runs along the plate surface 51 of the upper edge slat 33 and is overlapped on the plate surface 51, and is fixed by a fastening member 61 that penetrates together with the upper edge slat 33.

[0015] In this hanging structure of the opening / closing body, the base 53 of the regulating member 37 is aligned along the plate surface of the upper edge slat 33 and overlapped by a predetermined length, and a fastening member 61, such as a rivet or screw, can be passed through and fixed in place; in other words, the length is sufficient for fastening with the fastening member 61, and the regulating member 37 can be fixed to the upper edge slat 33.

[0016] The suspension structure for an opening / closing body according to claim 5 of the present invention is the suspension structure for an opening / closing body according to claim 3, The base of the regulating member has a predetermined length that runs along the plate surface of the upper edge slat and overlaps the plate surface, and is fixed by a fastening member that penetrates together with the upper edge slat.

[0017] In this hanging structure for an opening / closing body, the function is the same as that of claim 4.

[0018] The suspension structure for an opening-closing body according to claim 6 of the present invention is the suspension structure for an opening-closing body according to claim 1 or 2, The restricting member 37 is removably fastened to the upper edge slat 33.

[0019] In this suspension structure of the opening / closing body, the regulating member 37 is fastened and fixed to the upper edge slat 33 in a freely removable manner. For fastening, a bolt, a screw, a screw, or the like is used. The regulating member 37 has a base 53 fixed to the plate surface 51 of the upper edge slat 33. A female screw 59 is formed in the base 53. Meanwhile, a through hole 63 through which a screw 61 or the like can be inserted is drilled in the plate surface 51 of the upper edge slat 33. The regulating member 37 has a base 53 overlapped on the plate surface 51 on the indoor side of the upper edge slat 33, and the screw 61 inserted from the outdoor side through hole 63 is screwed into the female screw 59 of the base 53 arranged on the indoor side, thereby fastening and fixing. In other words, the regulating member 37 is fastened and fixed to the upper edge slat 33 by a single screw 61 or the like. The fastened and fixed regulating member 37 can be easily removed from the upper edge slat 33 by simply releasing the fastening of the screws 61, etc., compared to rivet fixing, which is difficult to remove, and can also be easily re-fixed. This makes it possible to remove and replace the upper edge slat 33 from the hanging member 35, making maintenance easier.

[0020] The suspension structure for an opening-closing body according to claim 7 of the present invention is the suspension structure for an opening-closing body according to claim 3, The restricting member 37 is removably fastened to the upper edge slat 33.

[0021] In this hanging structure for an opening / closing body, the function is the same as that of claim 6.

[0022] The suspension structure for an opening-closing body according to claim 8 of the present invention is the suspension structure for an opening-closing body according to claim 4, The restricting member 37 is removably fastened to the upper edge slat 33.

[0023] In this hanging structure for an opening / closing body, the function is the same as that of claim 6.

[0024] The suspension structure for an opening-closing body according to claim 9 of the present invention is the suspension structure for an opening-closing body according to claim 5, The restricting member 37 is removably fastened to the upper edge slat 33.

[0025] In this hanging structure for an opening / closing body, the function is the same as that of claim 6. Effect of the Invention

[0026] According to the hanging structure of the opening / closing body described in claim 1 of the present invention, the structural disadvantage of end metal fittings easily hitting the bracket is avoided, making it possible to carry out work easily, and by regulating the misalignment of the opening / closing body without plastic processing even for slats made of thick steel plates, it is possible to suppress abnormal noise and damage caused by contact with the slats.

[0027] According to the hanging structure of the opening / closing body described in claim 2 of the present invention, the structural disadvantage of end metal fittings easily hitting the bracket is avoided, making it possible to carry out work easily, and by regulating the misalignment of the opening / closing body without plastic processing even for slats made of thick steel plates, it is possible to suppress abnormal noise and damage caused by contact with the slats. In addition, since the regulating portion of the regulating member abuts against the outer edge of the hanging member, the upper edge slat abuts against the hanging member at both longitudinal ends by clamping it from the outside on the left and right, thereby regulating left and right movement, i.e., shifting or leaning to one side.

[0028] According to the hanging structure of the opening / closing body described in claim 3 of the present invention, the hanging member that enables the upper edge slat to be suspended from the wheel can be manufactured by cutting the existing slats that constitute the opening / closing body into short lengths, which makes it possible to reduce the cost of parts compared to designing and manufacturing a dedicated hanging member from scratch.

[0029] According to the hanging structure of the opening / closing body described in claim 4 of the present invention, the base of the regulating member is aligned along the plate surface of the upper edge slat and overlapped by a predetermined length, and a fastening member, such as a rivet or screw, can be passed through and fixed in place, i.e., the regulating member has a length for fixing with a fastening member, making it possible to fix the regulating member to the upper edge slat.

[0030] According to the hanging structure for an opening / closing body described in claim 5 of the present invention, the same effects as those of claim 4 can be obtained.

[0031] According to the hanging structure of the opening / closing body described in claim 6 of the present invention, the regulating member is fixed to the upper edge slat by a fastening structure. Therefore, by releasing the fastening and removing the regulating member from the upper edge slat, the opening / closing body can be slid relative to the hanging member to be detached and attached, thereby improving maintenance such as replacing the slats or the hanging member.

[0032] According to the hanging structure for an opening / closing body described in claim 7 of the present invention, the same effects as those of claim 6 can be obtained.

[0033] According to the hanging structure for an opening / closing body of the eighth aspect of the present invention, the same effects as those of the sixth aspect can be obtained.

[0034] According to the hanging structure for an opening / closing body recited in claim 9 of the present invention, the same effects as those of claim 6 can be obtained. [Brief description of the drawings]

[0035] [Figure 1] 1 is a rear view of a shutter device equipped with a suspension structure for an opening / closing body according to the present invention, as viewed from the indoor side. [Diagram 2] FIG. 2 is an enlarged view of a main portion near the wheel on the right side of FIG. [Diagram 3] FIG. 13 is an enlarged perspective view of a main portion of an upper edge slat end portion from which a restricting member has been removed. [Figure 4] 1 is a side view showing the vicinity of the upper edge slat together with an enlarged view of the main part thereof. [Diagram 5] FIG. 4 is an exploded perspective view showing a fixing structure of a suspension member to a wheel. [Figure 6] A side view of a wheel around which an upper portion of a shutter curtain is wrapped. [Figure 7] 13 is a side view of a main portion of a shutter curtain showing a modified example of a regulating member. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a rear view of a shutter device 11 equipped with a suspension structure for an opening / closing body according to the present invention, as viewed from the indoor side. The suspension structure of an opening / closing body according to this embodiment is applied to a shutter device 11 attached to an opening 13 of a building. An example of the building is a garage. Examples of the opening / closing body 15 include a slat shutter and a panel shutter. In this embodiment, a case where the opening / closing body 15 is a slat shutter will be described as an example. The slat shutter will be simply referred to as a shutter curtain 15 below.

[0037] The shutter curtain 15 is composed of a plurality of horizontally elongated slats 17 that are long in the width direction of the opening 13 and are connected in the vertical direction. A horizontal shaft 19 is disposed above the opening 13. Both ends of the shaft 19 are supported by brackets 23 via bearings 21. Each bracket 23 is fixed to the building side. A plurality of wheels 25 are rotatably attached to the shaft 19 at a predetermined interval. For example, two, three, four, etc. of wheels 25 are attached depending on the width of the opening 13. The shaft 19 is provided with a weight balance spring and an opening / closing mechanism (not shown), but the structure of these is conventional and therefore detailed description is omitted. The shaft 19, brackets 23, wheels 25, etc. are covered by a shutter case 27 with a volume that can accommodate the shutter curtain 15 wound up on the wheels 25.

[0038] When the opening / closing mechanism is operated and the wheel 25 rotates forward and backward, the shutter curtain 15 is wound and unwound about the wheel 25, raising and lowering the opening 13 to open and close the opening. The shutter curtain 15 is guided on both sides in the width direction by a pair of guide rails 29 that are fixed to the building in the vertical direction on the left and right sides of the width direction of the opening 13, and moves up and down. In addition, the wind-resistant claws 31 attached to protrude from both sides in the width direction engage with the inside of the guide rails 29, so that the shutter curtain 15 is guided in a state where it is prevented from coming off the guide rails 29 even in strong winds.

[0039] In the suspension structure of the opening / closing body according to this embodiment, the slat connected to the uppermost end of the shutter curtain 15 becomes the upper edge slat 33. The upper edge slat 33 is suspended from suspension members 35 fixed to each of the wheels 25. The shutter curtain 15 has regulating members 37 fixed to both longitudinal sides of the upper edge slat 33. The regulating members 37 come into contact with the suspension members 35 attached to the wheels 25 on both the left and right ends, thereby regulating left-right displacement of the shutter curtain 15.

[0040] FIG. 2 is an enlarged view of a main portion near the right wheel in FIG. The shutter curtain 15 is connected by laterally sliding the upper connecting portion 41 (see FIG. 3) of the lower slat 17 to engage with the lower connecting portion 39 (see FIG. 3) of the upper slat 17 adjacent to the top and bottom. Each slat 17 connected below the upper edge slat 33 has a fixing piece 45 having a retaining piece 43 fixed to both left and right ends, every other slat 17 in the vertical direction. The fixing piece 45 restricts the longitudinal movement of each slat 17 by abutting the retaining piece 43 against the end face of the slat 17 adjacent to the fixed slat 17 above and below. Predetermined ones of the fixing pieces 45 are provided with the wind-resistant claws 31 described above.

[0041] In the hanging structure of the opening / closing body according to this embodiment, the hanging member 35 is formed by cutting another slat 17 used in the shutter curtain 15 into a short length.

[0042] FIG. 3 is an enlarged perspective view of the essential parts of the upper edge slat end portion from which the restricting member 37 has been removed. The upper connecting portion 41 is formed by bending the upper edge of the slat 17 into a hook shape that is substantially W-shaped in side view. The lower connecting portion 39 is formed by bending the lower edge of the slat 17 into a C-shaped engagement groove in side view. The upper slat 17 and the lower slat 17 have ends of the upper connecting portion 41 engaged with ends of the lower connecting portion 39 from the lateral direction, and are moved along the extension direction of the slat 17. As a result, the upper connecting portion 41 and the lower connecting portion 39 are engaged with each other in the longitudinal direction of the slat 17 to form a connecting portion 47. The slat curtain has the connecting portion 47 as a joint portion that connects the multiple slats to the outer periphery of the wheel 25 in a bendable manner.

[0043] In other words, the cross section perpendicular to the longitudinal direction of the hanging member 35 and the slat 17 have the same shape. The hanging member 35 and the upper edge slat 33 can be connected in the same manner as the engagement between slats. Therefore, the hanging member 35 and the upper edge slat 33 can be connected by sliding the upper connecting portion 41 of the upper edge slat 33 laterally against the lower connecting portion 39 of the hanging member 35 to engage with each other.

[0044] As shown in Fig. 1, the wheels 25 on both the left and right ends are located closer to the center in the longitudinal direction of the shaft 19 than the ends of the upper edge slats 33. In other words, the ends of the upper edge slats 33 extend outward, toward both ends of the shaft 19, than the hanging members 35 fixed to the wheels 25 on both the left and right ends. In other words, in the hanging structure of the opening / closing body, the end face positions of the hanging members 35 and the upper edge slats 33 do not coincide, as shown in Fig. 3. Here, the end portions of the upper edge slats 33 that extend outward in the direction along the shaft 19 than the hanging members 35 are referred to as slat side edges 49.

[0045] In the suspension structure of the opening / closing body, the regulating member 37 is fixed to the plate surface 51 of the slat side edge portion 49 of the upper edge slat 33. The regulating member 37 has a base 53 that is flat and formed along the length of the flat plate surface 51 of the upper edge slat 33, i.e., the length between the upper connecting portion 41 and the lower connecting portion 39 of the upper edge slat 33, and is fixed to the plate surface 51 of the upper edge slat 33, and a regulating portion 57 that is formed in a bent shape, for example a U-shape, that overcomes the upper connecting portion 41 of the upper edge slat 33 from the base 53 and abuts against the outer end surface 55 of the suspension member 35. A total of two regulating members 37 are fixed to both ends of the upper edge slat 33 in the longitudinal direction (see FIG. 1). The regulating member 37 has a female screw 59 formed in the base 53. Meanwhile, a through hole 63 into which a screw 61 or the like serving as a fastening member can be inserted is formed in the plate surface 51 of the upper edge slat 33. The restricting member 37 has its base 53 overlapped along the plate surface 51 on the indoor side of the upper edge slat 33. The restricting member 37 is fastened to the slat side edge portion 49 by having the screw 61 inserted from the through hole 63 on the outdoor side screw into the female thread 59 of the base 53 arranged on the indoor side.

[0046] That is, in the suspension structure of the opening / closing body, the regulating member 37 is fastened and fixed to the upper edge slat 33 by a screw 61 or the like so as to be freely removable.

[0047] FIG. 4 is a side view showing the vicinity of the upper edge slat together with an enlarged view of the main part thereof. The regulating member 37 fixed to the slat side edge portion 49 of the upper edge slat 33 has the regulating portion 57 climbing over the upper connecting portion 41 of the upper edge slat 33. As shown in FIG. 3, at the slat side edge portion 49, the lower connecting portion 39 of the hanging member 35 is not engaged with the upper connecting portion 41 of the upper edge slat 33. In other words, the U-shaped regulating portion 57 covers only the upper connecting portion 41. The inner end surface of the regulating portion 57 climbing over the upper connecting portion 41 abuts against the outer end surface 55 of the lower connecting portion 39 of the hanging member 35. As shown in FIG. 1, the regulating member 37 abuts against the hanging member 35 attached to the two wheels 25 arranged on both ends of the shaft 19. The shutter curtain 15 is restricted from moving left and right, i.e., from shifting or leaning to one side, by the regulating member 37 abutting against the outer end surfaces 55 of the hanging members 35 fixed to the left and right wheels 25 from the outside on the left and right.

[0048] FIG. 5 is an exploded perspective view showing the fixing structure of the suspension member 35 to the wheel 25. As shown in FIG. The slat 17 has both the upper connecting portion 41 and the lower connecting portion 39 protruding from one side of the plate surface, either the front or the back. Therefore, the slat 17 has a concave-shaped member in a cross section perpendicular to the longitudinal direction, which is recessed between the upper connecting portion 41 and the lower connecting portion 39. The hanging member 35, formed by cutting the slat 17 into a short length, has its concave surface fixed to the outer circumferential surface of the wheel 25 (see Figure 6). The hanging member 35 is fixed by fastening a bolt 65, which is passed through the plate surface 51 opposite the concave surface, to the outer circumferential surface of the wheel 25, so that the concave surface faces the outer circumferential surface of the wheel 25.

[0049] For this reason, in the hanging member 35 in which the slat 17 is shortened and reused, a drawing process is performed to fill the gap between the plate surface 51 and the outer peripheral surface of the wheel, which is generated by the concave surface, or a horizontally long rectangular plate-shaped spacer 71 is inserted between the bottom 69 of the drawn portion 67 and the outer peripheral surface of the wheel. In this case, a horizontally long hole 73 is formed in the bottom 69 of the drawn portion 67, through which the bolt 65 is inserted. The spacer 71 is also provided with a long hole 74 similar to the long hole 73, and cutouts 75 on both longitudinal sides to ensure a welding allowance when welding and fixing to the wheel 25 and to serve as indicators for the welding position.

[0050] This makes it possible to prevent deformation of the hanging member 35 in the gap direction when the bolt is fastened in a fixing structure that uses the slat 17. As a result, the hanging member 35 that enables the upper edge slat 33 to be suspended from the wheel 25 can be manufactured by cutting the existing slat 17 that constitutes the shutter curtain 15 into short lengths, and the parts cost can be reduced compared to designing and manufacturing a new dedicated hanging member. Furthermore, the drawn portion 67 forms a recess on the opposite side of the concave surface of the hanging member 35, and this recess accommodates the head of the bolt 65 for fixing to the wheel 25. When the shutter curtain 15 is wrapped around the wheel 25, the bolt head does not interfere with the slat 17 of the shutter curtain 15 which is wrapped around the outside (see Figure 6).

[0051] FIG. 6 is a side view of the wheel 25 around which the upper portion of the shutter curtain 15 is wound. The shutter curtain 15 is suspended by the hanging member 35 at the upper edge slats 33, and when the opening / closing device is operated to rotate the wheel 25, the upper edge slats are wound up around the outer periphery of the wheel 25. In Fig. 6, the right side of the shutter curtain 15 hanging down vertically is indoors 77, and the left side is outdoors 79. Fig. 4 shows the shutter curtain 15 in a state where it has been unrolled from the wheel 25 in Fig. 6 and is hanging down vertically.

[0052] 6, the wheel 25 rotates clockwise, and the connecting portion 47 of the shutter curtain 15 is bent and wound up around the outer periphery of the wheel 25. At this time, the restricting member 37 abuts against the hanging member 35 such that the tip of the restricting portion 57 intersects with the front and back plate surfaces 51 of the hanging member 35 in a side view. In other words, when the shutter curtain 15 is wound around the wheel 25, the restricting portion 57 intersects and abuts with the outer end surface 55 of the lower connecting portion 39 as well as the end surface of the plate surface 51 of the hanging member 35, so that lateral displacement is more firmly restricted.

[0053] 4, tip 81 of regulating portion 57 is set to a length that does not intersect with plate surface 51 of hanging member 35 when shutter curtain 15 is in a vertically hanging position, i.e., when each slat 17 and upper edge slat 33 are straight, as shown in FIG. 4. As a result, when shutter curtain 15 is wound around wheel 25, regulating member 37 is configured such that tip 81 of regulating portion 57 does not interfere with slat 17 of shutter curtain 15 that is wound around the outside, as shown in FIG.

[0054] FIG. 7 is a side view of a main part of the shutter curtain 15, illustrating a modified example of the regulating member 37. In FIG. The restricting portion 57 of the restricting member 37 is not limited to the U-shape described above. The restricting portion 57 may have any shape as long as it rides over the upper connecting portion 41 of the upper edge slat 33 and abuts against the outer end surface 55 of the lower connecting portion 39 of the hanging member 35 that engages with the upper connecting portion 41. For example, as shown in Fig. 7, by making the restricting portion 57 into a curved shape such as a substantially semi-cylindrical shape that is close to the curved shape of the outer end surface 55, it is possible to ensure a larger abutment margin against the outer end surface 55 of the lower connecting portion 39 while riding over the upper connecting portion 41 than with a U-shape.

[0055] Next, the operation of the above-mentioned configuration will be described.

[0056] In the hanging structure of the opening / closing body according to this embodiment, an upper edge slat 33, which is connected to the uppermost end of the shutter curtain 15, is connected to a hanging member 35 fixed to the outer periphery of the wheel 25. The upper edge slat 33 is suspended from the hanging member 35 by an upper connecting portion 41 sliding laterally to engage with a lower connecting portion 39 of the hanging member 35.

[0057] The wheels 25 on both the left and right ends are positioned closer to the center in the longitudinal direction of the shaft 19 than the ends of the upper edge slats 33. In other words, the ends of the upper edge slats 33 extend outward toward both ends of the shaft 19 than the hanging members 35 fixed to the wheels 25 on both the left and right ends. That is, in this hanging structure of the opening / closing body, the end faces of the hanging members 35 and the upper edge slats 33 do not coincide. The end portions of the upper edge slats 33 that extend outward in the direction along the shaft 19 than the hanging members 35 become slat side edges 49.

[0058] In the hanging structure of the opening / closing body, a restricting member 37 is fixed to a plate surface 51 of a slat side edge portion 49 of an upper edge slat 33. The restricting member 37 has a base 53 fixed to the plate surface 51 of the upper edge slat 33, and a restricting portion 57 formed in a U-shape that extends from the base 53 over the upper connecting portion 41 of the upper edge slat 33 and abuts against an outer end surface 55 of the hanging member 35.

[0059] In the shutter curtain 15, when the upper edge slat 33 is suspended from the hanging member 35, the upper connecting portion 41 can slide laterally relative to the lower connecting portion 39 of the hanging member 35, causing the hanging member to tilt to one side. Therefore, in the hanging structure of the opening and closing body, the restricting portion 57 of the restricting member 37 fixed to the left and right slat side edges 49 of the upper edge slat 33 abuts against the outer end surface 55 of the lower connecting portion 39 of the hanging member 35 engaged with the upper connecting portion 41 while climbing over or straddling the upper connecting portion 41 of the upper edge slat 33. In other words, the restricting portion 57 formed in a simple bent shape such as a U-shape is configured to climb over the upper connecting portion 41 and abut only against the outer end surface 55 of the lower connecting portion 39 engaged to cover the upper connecting portion 41.

[0060] The shutter curtain 15 is regulated against left and right movement, i.e., against shifting or leaning to one side, by abutting the outer end faces 55 of the lower connecting parts 39 of the hanging members 35 fixed to the left and right wheels 25 from the outside on the left and right sides in a clamping manner with the regulating members 37 fixed to the slat side edge portions 49 on both the left and right sides of the upper edge slats 33.

[0061] In this hanging structure of the opening / closing body, the regulating member 37 is fixed to the slat side edge portion 49 of the upper edge slat 33, so that the regulating member 37 does not come close to the brackets 23 located on the left and right outside of the shaft 19, thereby avoiding disadvantages such as the regulating member 37 hitting the brackets 23.

[0062] In addition, since the regulating member 37 is fixed to the plate surface 51 of the slat side edge portion 49, a series of adjustment operations from positioning the shutter curtain 15 in the left-right direction to fixing the regulating member can be easily performed from the front and back sides of the shutter curtain 15.

[0063] Furthermore, in the hanging structure of this opening / closing body, the metal regulating member 37 is fixed to the upper edge slat 33 of the shutter curtain 15, so that the upper edge slat 33 of the shutter curtain 15 can be prevented from shifting or coming off even for thick fire-resistant steel plate slats without the need for conventional crimping processing.

[0064] In addition, in this suspension structure of the opening / closing body, the suspension member 35 is formed by cutting the slat 17 into a short length. The shutter curtain 15 used in the suspension structure of the opening / closing body is composed of a plurality of horizontally long slats 17 that are long in the width direction of the opening 13 and connected in the vertical direction. Each slat 17 has the same shape in cross section perpendicular to the longitudinal direction. Therefore, by cutting another slat 17 of the same shape as the slat 17 used in manufacturing the shutter curtain 15 into the desired short length and fixing it to the wheel 25 as the suspension member 35, it is possible to provide the wheel 25 with the lower connecting portion 39 that engages with the upper connecting portion 41 of the upper edge slat 33 without using a dedicated member.

[0065] In this suspension structure of the opening / closing body, the regulating member 37 is fastened and fixed to the upper edge slat 33 in a freely removable manner. A bolt, a screw, a screw, or the like is used for fastening. The regulating member 37 has a base 53 fixed to the plate surface 51 of the upper edge slat 33. A female screw 59 is formed in the base 53. Meanwhile, a through hole 63 through which a screw 61 or the like can be inserted is drilled in the plate surface 51 of the upper edge slat 33. The regulating member 37 has a base 53 overlapped on the plate surface 51 on the indoor side of the upper edge slat 33, and the screw 61 inserted from the outdoor side through hole 63 is screwed into the female screw 59 of the base 53 arranged on the indoor side, thereby fastening and fixing. In other words, the regulating member 37 is fastened and fixed to the upper edge slat 33 by a single screw 61 or the like.

[0066] The fastened and fixed regulating member 37 can be easily removed from the upper edge slat 33 by simply releasing the fastening of the screws 61, etc., compared to rivet fixing, which is difficult to remove, and can also be easily re-fixed. As a result, since the regulating member 37 is fixed to the upper edge slat 33 by a fastening structure, if the fastening is released and the regulating member 37 is removed from the upper edge slat 33, the shutter curtain 15 can be slid relative to the hanging member 35 and removed, improving the ease of maintenance such as replacing the slats and the hanging member.

[0067] Therefore, according to the hanging structure of the opening and closing body of this embodiment, the structural disadvantage of end metal fittings easily hitting the bracket 23 is avoided, making work easy, and by regulating the shifting of the shutter curtain 15 without plastic processing even for slats 17 made of thick steel plate, abnormal noise and damage caused by contact with the slats 17 can be suppressed. [Explanation of symbols]

[0068] 13...Opening 15...Opening and closing body (shutter curtain) 17…Slat 19…Shaft 25…Wheels 33…Upper edge slat 35…Hanging member 37...Regulatory components 39…Lower connection part 41...Upper connection part 49...End portion (slat side edge) 51...Plate surface 53...Base 55…Outer end face 57…Regulation Department 61... Fastening member (screw)

Claims

1. A suspension structure for an opening / closing body that opens and closes an opening of a building by lifting and lowering the opening, the opening being opened and closed by winding and unwinding the opening onto a plurality of wheels that are rotatably attached to a shaft provided above the opening, The opening and closing body is suspended by an upper edge slat connected to the uppermost end being slid laterally to engage with a lower connecting portion of a suspension member fixed to each of the wheels, A restricting member is fixed to each of the longitudinal ends of the upper edge slat, the restricting member being disposed at an end of the upper edge slat closer to the outer end face of the lower connecting portion of the hanging member attached to the two wheels arranged at both ends of the shaft, and restricting the sliding of the opening / closing body in a direction along the shaft; This is a hanging structure for an opening / closing body, characterized in that the regulating member has a base fixed to the plate surface of the upper edge slat, and a regulating portion formed in a bent or curved shape that extends from the base over the upper connecting portion of the upper edge slat and abuts against the outer end surface of the lower connecting portion of the hanging member.

2. A suspension structure for an opening / closing body that opens and closes an opening of a building by lifting and lowering the opening, the opening being opened and closed by winding and unwinding the opening onto a plurality of wheels that are rotatably attached to a shaft provided above the opening, The opening and closing body is suspended by an upper edge slat connected to the uppermost end being slid laterally to engage with a lower connecting portion of a suspension member fixed to each of the wheels, A restricting member is fixed to each of the longitudinal ends of the upper edge slat to restrict sliding of the opening / closing body in a direction along the shaft by contacting with an outer end surface of a lower connecting portion of the hanging member attached to the two wheels arranged on both ends of the shaft, This is a hanging structure for an opening / closing body, characterized in that the regulating member has a base fixed to the plate surface of the upper edge slat, and a regulating portion formed in a bent or curved shape that extends from the base over the upper connecting portion of the upper edge slat and abuts against the outer end surface of the lower connecting portion of the hanging member.

3. 3. The suspension structure for an opening / closing body according to claim 1, wherein the suspension member is formed by cutting a slat constituting the opening / closing body into a short length.

4. A hanging structure for an opening / closing body as described in claim 1 or 2, characterized in that the base of the regulating member has a predetermined length that runs along the plate surface of the upper edge slat and is overlapped on said plate surface, and is fixed by a fastening member that penetrates together with the upper edge slat.

5. The hanging structure of an opening / closing body as described in claim 3, characterized in that the base of the regulating member has a predetermined length that runs along the plate surface of the upper edge slat and is overlapped on said plate surface, and is fixed by a fastening member that penetrates together with the upper edge slat.

6. 3. The suspension structure for an opening / closing body according to claim 1, wherein the regulating member is fastened and fixed to the upper edge slat in a freely detachable manner.

7. 4. The suspension structure for an opening / closing body according to claim 3, wherein the regulating member is fastened and fixed to the upper edge slat in a freely detachable manner.

8. 5. The suspension structure for an opening / closing body according to claim 4, wherein the regulating member is fastened and fixed to the upper edge slat in a freely detachable manner.

9. 6. The suspension structure for an opening / closing body according to claim 5, wherein the regulating member is fastened and fixed to the upper edge slat in a freely detachable manner.

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