JP7724442B2 - Nut rotation stopper for lifting equipment and gutter structure - Google Patents

Description

This disclosure relates to a nut rotation stopper for a hanger used in a gutter structure that includes a hanging fixture attached to a roof and a gutter attached to the roof via the hanging fixture.

Conventionally, a structure has been known in which gutters such as eaves gutters are suspended from a corrugated roof using a corrugated roof suspender. The corrugated roof suspender has a suspension rod with a threaded portion, a nut that is threadedly connected to the suspension rod, and a gutter suspender that suspends and supports the gutter.

Patent Document 1 describes a gutter support (gutter hanging part) that includes a gutter support main body with two locking parts that lock onto the front and rear ears of the eaves gutter, and a connecting part located approximately in the center of the gutter support main body for connecting the gutter support main body to the eaves edge. The connecting part has two nuts attached to the lower end of a hanging rod with threads that sandwich the gutter support main body from both sides.

Patent No. 4443544

In conventional structures in which gutters are suspended and supported from a corrugated roof via a corrugated roof suspender, spring washers are often used between the corrugated roof or gutter suspender and the nut to prevent the nut from loosening.

However, spring washers may not be able to completely prevent the nuts from loosening over the long term. If the nuts begin to loosen after extended use, the loosening may progress due to vibrations, etc., making it difficult to stably support the gutters on the corrugated roof for an extended period of time.

The purpose of this disclosure is to prevent the nut from loosening on the hanging rod of a folding plate hanging device over a long period of time in a nut rotation stopper for a hanging device and a gutter structure.

One aspect of the present disclosure provides a nut rotation stopper for a hanging device used in a gutter structure comprising a hanging device attached to a corrugated roof and a gutter suspended and supported on the corrugated roof via the hanging device. The hanging device is a nut rotation stopper attached to the hanging device, and the hanging device has a hanging rod with a threaded portion, a gutter hanging portion that suspends and holds the gutter, and multiple hanging device nuts that are threadedly coupled to the hanging rod, and the multiple hanging device nuts are roof-side hanging screws that secure the hanging rod to the corrugated roof. The hanger nut rotation stopper has a hanger nut and a gutter-side hanger nut that secures the gutter hanging part to the hanging rod, and the hanger nut rotation stopper has at least one nut contact portion that contacts at least one hanger nut of the multiple hanger nuts, and a stopper body; when one hanger nut tends to rotate, the stopper body abuts against another part of the gutter structure on the front side in the rotation direction, thereby preventing rotation of at least one hanger nut.

One aspect of the gutter structure disclosed herein is a gutter structure equipped with the nut rotation stopper for a lifting device disclosed herein.

In accordance with one aspect of the lifting device nut rotation stopper and gutter structure disclosed herein, when the lifting device nut begins to rotate, the stopper body abuts against other parts of the gutter structure on the front side in the direction of rotation, thereby preventing the lifting device nut from rotating. This makes it possible to prevent the lifting device nut from loosening from the suspension rod for an extended period of time, unlike when a spring washer is used to prevent the nut from loosening.

1 is a perspective view of a portion of a gutter structure including a nut rotation stopper for a hoisting device according to an embodiment, viewed from above. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. FIG. 2 is a perspective view of a part of the gutter structure of FIG. 1, seen from below with the eaves gutter omitted. 2 is a perspective view of a part of the gutter structure of FIG. 1 as viewed in the direction of arrow B in FIG. 1. FIG. 2 is a perspective view of the nut rotation stopper for the hanger taken out from the gutter structure of FIG. 1 and viewed from above. FIG. 6 is a perspective view of the nut rotation stopper for a lifting device of FIG. 5 as viewed from below. 6A is a perspective view of the lower side of the nut rotation stopper for a lifting device of FIG. 5, seen from a different direction than FIG. 6. FIG. 6 is a top view of the nut rotation stopper for a lifting device shown in FIG. 5 . 6 is a bottom view of the nut rotation stopper for a lifting device of FIG. 5 . FIG. FIG. 6 is a side view of the nut rotation stopper for a lifting tool of FIG. 5 . FIG. 10 is a perspective view of a portion of a gutter structure according to another embodiment, viewed from above. FIG. 12 is a perspective view of a portion of the gutter structure of FIG. 11 as seen from below. This is a cross-sectional view taken along the line CC in FIG. 10 is a view corresponding to FIG. 8 of a nut rotation stopper for a lifting tool according to another embodiment of the present invention. 10 is a perspective view of a portion of a gutter structure including a nut rotation stopper for a lifting device according to another embodiment, viewed from above. FIG. 15 is a view seen in the direction of arrow D in FIG. 14. 15 is a perspective view of the nut rotation stopper for the hanger taken out from the gutter structure of FIG. 14 and viewed from above. FIG. 10 is a perspective view of a portion of a gutter structure including a nut rotation stopper for a lifting device according to another embodiment, viewed from above. FIG. 18 is a perspective view of the nut rotation stopper for the hanger removed from the gutter structure of FIG. 17, as viewed in the direction of arrow E in FIG. 17. 10 is a perspective view of a portion of a gutter structure including a nut rotation stopper for a lifting device according to another embodiment, viewed from below. FIG. FIG. 20 is a perspective view of a portion of the gutter structure of FIG. 19 viewed from approximately directly below. FIG. 20 is a perspective view of the nut rotation stopper for the hanger taken out from the gutter structure of FIG. 19, viewed from above. 10 is a cross-sectional view of a portion of a gutter structure including a nut rotation stopper for a hanging device according to another embodiment of the present invention. This is a perspective view of the gutter structure of Figure 22, with the eaves gutter omitted, seen from below.

Embodiments of a nut rotation stopper for a lifting device and a rain gutter structure according to the present disclosure will be described below with reference to the drawings. Note that when multiple embodiments or variations are included below, it is anticipated from the outset that new embodiments will be constructed by appropriately combining their characteristic features. The shapes, quantities, materials, etc. described below are examples for explanatory purposes only and can be changed as appropriate depending on the specifications of the rain gutter structure. In the following description, equivalent elements will be assigned the same reference numerals in all drawings.

[First embodiment]
The first embodiment will be described using Figures 1 to 10. Figure 1 is a perspective view of a portion of a gutter structure 1 including a nut rotation stopper 40 for a lifting device according to the embodiment, as seen from above. Figure 2 is a cross-sectional view taken along the line A-A in Figure 1. Figure 3 is a perspective view of a portion of the gutter structure 1, with the eaves gutter 80 omitted, as seen from below. Figure 4 is a perspective view of a portion of the gutter structure 1, as seen in the direction of arrow B in Figure 1.

The gutter structure 1 comprises a corrugated roof 2 installed at the top of the building and an eaves gutter 80 suspended from the eaves of the corrugated roof 2 via a corrugated roof suspender 10. The eaves gutter 80 corresponds to a rain gutter. The gutter structure 1 uses a suspender nut rotation stopper 40 attached to the corrugated roof suspender 10. As a result, the gutter structure 1 is equipped with the suspender nut rotation stopper 40.

The corrugated roof 2 has a wave-like shape with trapezoidal peaks 3 and trapezoidal valleys 4 arranged alternately, and rainwater that flows down the valleys 4 flows into the eaves gutter 80 from the eaves tip of the corrugated roof 2. In Figures 1 to 4, only a portion of the corrugated direction of the corrugated roof 2, mainly centered on one peak 3, is shown with a solid line in the ridge-eaves direction (left-right direction in Figure 1).

The eaves gutter 80 comprises an eaves gutter body 81, the lower ends of which are connected by a bottom wall 84 to the front wall 82 and rear wall 83, and an open upper end, and front ears 85 and rear ears 86 formed at the upper ends of the front wall 82 and rear wall 83 and opening toward the inside of the eaves gutter 80. Figures 1 to 4 show only a portion of the eaves gutter 80 in the longitudinal direction.

Rainwater that enters the eaves gutter 80 from the folded-plate roof 2 flows longitudinally through the eaves gutter 80 and is discharged to the ground through a downspout (not shown) from a drain (not shown) installed in part of the longitudinal direction of the eaves gutter 80.

The folding slab hoist 10 is used to suspend and support the eaves gutter 80 on the folding slab roof 2. The folding slab hoist 10 has a hanging rod 11 with threaded portions at least at the upper and lower ends, a gutter hanging portion 13, and multiple hanging rod nuts 30, 31, 32, and 33 that are threadedly connected to the hanging rod 11. The folding slab hoist 10 is a hanging hardware for folding slabs.

The gutter hanging portion 13 is formed by bending a strip-shaped metal plate and comprises a hanging portion main body 14 that spans the width of the upper part of the eaves gutter 80, a front ear locking portion 15 that is located at the front end of the hanging portion main body 14 and locks onto the inside of the front ear portion 85, and a rear ear locking portion 16 that is located at the rear end of the hanging portion main body 14, passing over the outside of the rear ear portion 86 and locking onto the lower end of the rear ear portion 86. A long hole 14a that extends generally in the width direction of the eaves gutter 80 is formed in the middle of the hanging portion main body 14 in the part that extends generally in the width direction of the eaves gutter 80. The lower end of the hanging rod 11 passes through this long hole 14a.

The multiple hanger nuts 30, 31, 32, 33 include two roof-side hanger nuts 30, 31 that are screwed onto the upper end of the hanging rod 11 and fixed to the hanging rod 11 so as to sandwich the corrugated roof 2 from above and below, and two gutter-side hanger nuts 32, 33 that are screwed onto the lower end of the hanging rod 11 and fixed to the hanging rod 11 so as to sandwich the hanger body 14 from above and below. The two roof-side hanger nuts 30, 31 secure the hanging rod 11 to the corrugated roof 2. The two gutter-side hanger nuts 32, 33 secure the gutter hanging part 13 to the hanging rod 11. As a result, the gutter hanging part 13 suspends and holds the eaves gutter 80.

The hoisting device nut rotation stopper 40 is attached to the hanging rod 11. The hoisting device nut rotation stopper 40 prevents the rotation of at least one of the gutter-side hoisting device nuts 32, 33 among the multiple hoisting device nuts 30, 31, 32, 33. Hereinafter, the hoisting device nut rotation stopper 40 will be referred to as stopper 40.

Figure 5 is a perspective view of the stopper 40 removed from the gutter structure 1 and viewed from above. Figure 6 is a perspective view of the stopper 40 viewed from below. Figure 7 is a perspective view of the stopper 40 from below, viewed from a different direction than in Figure 6. Figures 8 and 9 are views of the stopper 40 viewed from above and below, respectively. Figure 10 is a side view of the stopper 40.

Specifically, the stopper 40 has a first arm 41 arranged on one vertical side, a second arm 51 arranged on the other vertical side, and a connecting wall 60 connecting a longitudinal intermediate portion of the first arm 41 to one longitudinal end of the second arm 51. The stopper 40 is formed of resin or metal. The first arm 41 and the second arm 51 are arranged approximately parallel to each other. The first arm 41 has a protrusion 42 arranged on one longitudinal side and having a tapered trapezoidal outer shape, and a nut gripping portion 44 arranged on the other longitudinal side. As a result, the protrusion 42 has tapered surfaces 42a on both widthwise sides that are inclined relative to the longitudinal direction so that the spacing becomes smaller toward the tip. The protrusion 42 may have a tapered triangular shape or a tapered trapezoidal shape with a rounded tip.

Concave portions 43a and 43b are formed on the inner portion of the protrusion 42, extending from the outer periphery to the inside of both vertical sides, making the plate thickness of the inner portion thinner than the outer periphery. This reduces the weight of the stopper 40.

Furthermore, as shown in Figure 10, the outer periphery of the protrusion 42 on the opposite side of the second arm 51 in the vertical direction forms an inclined surface 42b that slopes in the vertical direction toward the tip on the opposite side of the second arm 51.

The nut gripping portion 44 has two gripping pieces 45 whose base ends are connected by a base 49. Each gripping piece 45 has a generally arc-shaped receiving portion 46 with concave inner surfaces facing each other at the tip end. The inner surface of the receiving portion 46 is formed with a corrugated portion 47 in which peaks 48 and valleys are alternately arranged along the arc direction. The multiple peaks 48 of the corrugated portion 47 can engage with the corners of the outer periphery of one of the lower gutter-side hanger nuts 33 (Figure 2) and correspond to convex portions. Each peak has a generally semicircular cross section, allowing for smooth engagement with the corners of the gutter-side hanger nut 33. As a result, the nut gripping portion 44 contacts and holds the gutter-side hanger nut 33. The nut gripping portion 44 corresponds to the nut contact portion. A recess 50 is formed in the nut gripping portion 44 at the rear of each receiving portion 46, with a widthwise length perpendicular to the longitudinal direction that is greater than the distance between the rear ends of the receiving portions 46. This reduces the widthwise length of each gripping piece 45, making them more susceptible to elastic deformation in the direction of approaching each other or in the opposite direction. As a result, the nut gripping portion 44 is configured to be able to elastically clamp the gutter-side hanger nut 33.

The base ends of the first clamping piece 52 and the second clamping piece 54 of the second arm 51 are connected at a base 58. The thickness of the first clamping piece 52 is smaller than the thickness of the second clamping piece 54. The inner surfaces of the tips of the first clamping piece 52 and the second clamping piece 54 are formed with first curved surface portions 53a, 53b, which have a cross section that is approximately arc-shaped and whose central axes are approximately aligned. The hanging rod 11 (Figure 2) is fitted and supported inside the first curved surface portions 53a, 53b of each clamping piece 52, 54.

As shown in Figure 7, the second clamping piece 54 on the first arm 41 side (lower side in Figure 7) is formed with a second curved surface portion 55 with an arc-shaped cross section that can come into contact with and face the outer periphery of the upper gutter-side hanger nut 32 (Figure 2). A recess 59 is formed in the inner portion extending inward from the outer periphery of the side surface of the second arm 51 opposite the first arm 41 in the vertical direction, which also contributes to reducing the weight of the stopper 40.

The stopper 40 is attached to the folding plate hanger 10 as shown in Figures 1 to 4. Specifically, the lower end of the hanging rod 11, located above the upper gutter-side hanger nut 32, is fitted and supported on the inside of the first curved surfaces 53a, 53b of each clamping piece 52, 54 of the second arm 51. In this state, the outer peripheral surface of the upper gutter-side hanger nut 32 comes into contact with and is supported by the inner surface of the second curved surface 55 of the second clamping piece 54.

Furthermore, the gripping pieces 45 of the first arm 41 engage with the outer surface of the lower gutter-side hanger nut 33, holding the lower gutter-side hanger nut 33 in place. In this state, the connecting wall portion 60 of the stopper 40 faces the middle portion of the hanger body 14 of the folding slat hanger 10. The connecting wall portion 60 corresponds to the stopper body. Such a stopper 40 can also be attached to a constructed structure in which the eaves gutter 80 is suspended and supported from the folding slat roof 2 via the folding slat hanger 10.

In this state, if the lower gutter-side hanger nut 33 tends to rotate in the loosening direction (in the direction of arrow α in Figure 3) due to vibration or some other cause, the connecting wall portion 60 of the stopper 40 will also rotate in the same direction. Then, the side surface of the connecting wall portion 60 abuts against the side surface of the middle portion of the hanger body 14, which is another part of the gutter structure, on the front side in the rotational direction, thereby preventing at least the lower gutter-side hanger nut 33 from rotating. Furthermore, the second curved surface portion 55 of the stopper 40 comes into contact with the outer peripheral surface of the upper gutter-side hanger nut 32, thereby preventing the upper gutter-side hanger nut 32 from rotating.

With the stopper 40 and the gutter structure 1 equipped with the stopper 40, when the gutter-side hanger nut 33 begins to rotate, the connecting wall portion 60 of the stopper 40 abuts against the middle portion of the hanging portion main body 14 on the front side in the direction of rotation, thereby preventing the gutter-side hanger nut 33 from rotating. This makes it possible to prevent the gutter-side hanger nut 33 from loosening from the hanging rod 11 for an extended period of time, unlike when a spring washer is used to prevent the gutter-side hanger nut 33 from loosening.

Furthermore, the nut gripping portion 44 has a ridge 48 that engages with the gutter-side hanger nut 33 to hold the gutter-side hanger nut 33. This makes it easier to rotate the connecting wall portion 60 in sync with the gutter-side hanger nut 33 when the gutter-side hanger nut 33 tends to rotate. This makes it easier to more appropriately abut the connecting wall portion 60 and the middle portion of the hanger body 14, and more effectively prevents the gutter-side hanger nut 33 from rotating.

Furthermore, the nut gripping portion 44 is configured to be able to elastically clamp the gutter-side hanger nut 33, making it easier to attach the stopper 40 to the folding plate hanger 10 by elastically expanding the nut gripping portion 44. Furthermore, after the stopper 40 is attached, the nut gripping portion 44 can elastically clamp the gutter-side hanger nut 33, preventing the stopper 40 from falling off the folding plate hanger 10 due to wind, vibrations, etc.

Second Embodiment
Figure 11 is a perspective view of a portion of the gutter structure 1a of the second embodiment, as seen from above. Figure 12A is a perspective view of a portion of the gutter structure 1a, as seen from below. Figure 12B is a cross-sectional view taken along the line CC in Figure 11. In the gutter structure 1a of this example, the stopper 40 used in the configurations of Figures 1 to 10 is attached at a position different from the attachment position of the stopper 40 in the gutter structure 1 of Figures 1 to 10, thereby preventing the roof-side hanger nut 31 from loosening further.

Specifically, as shown in Figures 12A and 12B, the vertical orientation of the stopper 40 is reversed compared to the gutter structure 1 in Figures 1 to 10. That is, the first arm 41 of the stopper 40 is positioned above the second arm 51. The upper end of the hanging rod 11, located below the lower roof-side hanger nut 31, is fitted and supported within the first curved surfaces 53a, 53b (Figure 5) of the clamping pieces 52, 54 of the second arm 51.

Furthermore, the gripping pieces 45 of the first arm 41 engage with the outer peripheral surface of the lower roof-side hanger nut 31, holding the roof-side hanger nut 31 in place. In this state, the protrusion 42 of the stopper 40 faces inside the peak 3 of the corrugated roof 2, generally in the longitudinal direction of the peak 3 (generally toward the ridge and eaves), and faces the inner surface of the inclined wall 3a that forms the peak 3. In this example, the protrusion 42 corresponds to the stopper body.

In this state, if the lower roof-side hanger nut 31 begins to rotate in the loosening direction (the direction of arrow β in Figure 12A) for some reason, the protrusion 42 of the stopper 40 will also rotate in the direction of arrow γ in Figure 12A, the same direction as the roof-side hanger nut 31. The protrusion 42 then abuts against the inner surface of the sloped wall 3a of the corrugated roof 2, which is another part of the gutter structure, on the front side in the rotational direction, thereby preventing the roof-side hanger nut 31 from rotating. This makes it possible to prevent the roof-side hanger nut 31 from loosening from the suspension rod 11 for an extended period of time, unlike when a spring washer is used to prevent the roof-side hanger nut 31 from loosening.

Furthermore, in the configuration of this example, as with the configurations in Figures 1 to 10, the first arm 41 of the stopper 40 has a protrusion 42 that is located on one longitudinal side and has a tapered shape. As a result, when attaching the stopper 40 to the folding plate hoisting device 10, even if the stopper 40 is significantly tilted relative to the longitudinal direction of the peaks 3 of the folding plate roof 2 due to the attachment positional relationship between the nut gripping portion 44 and the roof-side hoisting device nut 31, the protrusion 42 of the stopper 40 is less likely to interfere with the inclined wall portion 3a of the peaks 3. This makes it easier to attach the stopper 40 to the folding plate hoisting device 10.

Furthermore, in this configuration, as in the configurations shown in Figures 1 to 10, the outer periphery of the side of the protrusion 42 of the first arm 41 of the stopper 40 opposite the second arm 51 in the vertical direction forms an inclined surface 42b that slopes vertically away from the second arm 51 toward the tip. This makes it possible to reduce or eliminate the gap between the protrusion 42 and the top of the peak 3, even when the nut gripping portion 44 of the stopper 40 is spaced from the underside of the peak of the peak 3 of the corrugated roof 2, as shown in Figure 12B, or when the peak of the peak 3 is inclined vertically and tends to move away from the upper side of the protrusion 42 of the stopper 40. This makes it easier to position the protrusion 42 close to the top of the inclined wall 3a, making it easier to bring the protrusion 42 into contact with the inclined wall 3a at the beginning of rotation of the roof-side hanger nut 31 in the loosening direction, thereby preventing loosening from progressing.

As shown in Figures 1 to 12B, the stopper 40 has a common structure and can prevent the loosening of any nut selected from both the roof-side hanger nut 31 and the gutter-side hanger nut 33. By providing two of the above-mentioned stoppers 40 and attaching them to both the stopper 40 attachment positions shown in Figures 1 to 10 and the stopper 40 attachment positions shown in Figures 11 to 12B on the folding plate hanger 10, it is possible to prevent the loosening of both the roof-side hanger nut 31 and the gutter-side hanger nut 33 over an extended period of time. In this example, the other configurations and functions are the same as those of Figures 1 to 10.

[Third embodiment]
Fig. 13 is a view corresponding to Fig. 8 of a stopper 40a of the third embodiment. In the configuration of this example, a first drainage hole 42c is formed penetrating vertically through the inner portion of the protrusion 42 so as to form an opening in the diagonal lattice portion of Fig. 13, which is part (deepest portion) of the recesses 43a on both vertical side surfaces of the protrusion 42 of the stopper 40a. In addition, a second drainage hole 59a is formed penetrating vertically through the second arm 51 of the stopper 40a so as to form an opening in the sandy portion of Fig. 13, which is the deepest portion of the recess 59 of the second arm 51.

With the above configuration, even if rainwater splashes on the top surface of the first arm 41 or second arm 51 of the stopper 40a while the stopper 40 is in use, the drainage holes 42c, 59a prevent the rainwater from accumulating. This prevents hydrolysis if the stopper 40a is made of resin, and rust if the stopper 40a is made of metal. Furthermore, by threading a string through one of the drainage holes 42c, 59a on the stopper 40a when transporting it, the stopper 40a can be prevented from falling or scattering during transport. Furthermore, by threading a string through one of the drainage holes 42c, 59a on each stopper 40a when transporting multiple stoppers 40a, it is possible to carry multiple stoppers 40a at once. In this example, the other configurations and operations are the same as those of the configurations in Figures 1 to 10 or Figures 11 to 12B.

[Fourth embodiment]
Fig. 14 is a perspective view of a part of the gutter structure 1b including the stopper 62 of the fourth embodiment, as seen from above. Fig. 15 is a view as seen in the direction of arrow D in Fig. 14. Fig. 16 is a perspective view of the stopper 62 removed from the gutter structure 1b, as seen from above.

In this example, a stopper 62 is used to prevent the roof-side lifting device nut 31 from loosening. The stopper 62 is made of metal or resin and includes a nut gripping portion 63, two wing portions 69, and a rod holding portion 70. The nut gripping portion 63 has a substantially rectangular plate portion 64 and two finger portions 65 with arc-shaped cross sections that protrude from one widthwise end of the plate portion 64. The leading edges of the two finger portions 65 are close to each other. A semicircular recess 66 is formed between the two finger portions 65 at one widthwise end edge of the plate portion 64. The inner surfaces of the recess 66 and the two finger portions 65 are formed with a curved surface 67 that is substantially partially cylindrical, and strip-like ribs 68 that extend in the plate thickness direction at multiple positions around the curved surface 67. Each rib 68 corresponds to a protrusion. The roof-side hanger nut 31 can be held in place by contacting the corners of its outer periphery with the inside of the curved surface 67. In this case, the circumferential pitch of the multiple ribs 68 may be approximately the same as the circumferential pitch of the corners of the roof-side hanger nut 31.

The two wing portions 69 are plate portions provided at both longitudinal ends of the nut gripping portion 63. The distance between the leading edges of the two wing portions 69 is smaller than the widthwise length of the flat top of the corrugated roof 2. In this example, the two wing portions 69 correspond to the stopper body. The upper end of each wing portion 69 is higher than the upper end of the nut gripping portion 63, and is pressed against the underside of the top of the corrugated roof 2 when holding the roof-side lifting device nut 31.

The rod holding portion 70 has an extension portion 70a that extends downward from the longitudinal center of the underside of the nut gripping portion 63, and a holding arm 70b that protrudes from the side of the lower end of the extension portion 70a on the same side as the two finger portions 65. An arc-shaped portion 70c with a roughly arc-shaped cross section is formed at the tip of the holding arm 70b, and the two circumferential ends of the arc-shaped portion 70c are close together. The arc-shaped portion 70c holds the portion of the hanging rod 11 located below the roof-side hanger nut 31 on its inner side.

In this state, the corners of the outer periphery of the roof-side hanger nut 31 contact the inside of the nut gripping portion 63, while the corners engage with the rib 68, holding the roof-side hanger nut 31 in place. In this state, if the roof-side hanger nut 31 begins to rotate in the loosening direction, the two wings 69 abut against the inner surface of the sloped wall portion 3a of the corrugated roof 2, which is another part of the gutter structure, on the front side in the direction of rotation, preventing the roof-side hanger nut 31 from rotating.

The configuration of this example, like the configuration of Figures 11 to 12B, can prevent the roof-side suspension nut 31 from loosening over an extended period of time. Furthermore, by pressing the upper ends of each wing portion 69 against the underside of the peak of the corrugated roof 2, vibration of the stopper 40 can be suppressed even if the eaves gutter suspended and supported by the lower end of the suspension rod 11 tends to sway in the wind. In this example, the other configurations and functions are the same as those of the configurations of Figures 1 to 10 or Figures 11 to 12B.

Fifth Embodiment
Fig. 17 is a perspective view of a part of a gutter structure including a stopper 71 of the fifth embodiment, as seen from above. Fig. 18 is a perspective view of the stopper 71 removed from the gutter structure of Fig. 17, as seen in the direction of arrow E in Fig. 17.

In this example, a stopper 71 is used to prevent further loosening of the two upper and lower gutter-side hanger nuts 32, 33 (see Figure 4 for 33). The stopper 71 is made of metal or resin and includes a rectangular plate-shaped stopper body 72 extending vertically, and two nut gripping portions 73 that protrude laterally in the same direction from the upper and lower ends of the stopper body 72.

Each nut gripping portion 73 has a block-shaped gripping body 74 with a generally polygonal recess 75 formed at the tip end. The recess 75 is formed from multiple flat surfaces that can fit closely onto the outer periphery of each gutter-side hanger nut 32, 33. At the tip end of each gripping body 74, at the open edge of the recess 75, are formed claws 76 that are bent and inclined toward each other.

The stopper 71 is attached to the folding plate hanger so that the two nut gripping portions 73 fit and hold the two upper and lower gutter-side hanger nuts 32, 33, which are connected to the hanging rod 11 in positions that sandwich the hanger body 77 on both the top and bottom. The hanger body 77 is made of resin or metal. When each nut gripping portion 73 holds the corresponding gutter-side hanger nut 32, 33, it elastically pushes apart the gap between the claw portions 76 of each gripping body 74. The spring properties of each claw portion 76 increase the holding force for the gutter-side hanger nuts 32, 33. In this state, the stopper body 72 of the stopper 71 faces the side of the hanger body 77.

In this state, when the gutter-side hanger nuts 32, 33 begin to rotate in the loosening direction, the stopper body 72 abuts against the side of the middle part of the hanger body 77 at the front of the rotation direction, simultaneously preventing the rotation of the gutter-side hanger nuts 32, 33. This makes it possible to prevent the gutter-side hanger nuts 32, 33 from loosening over an extended period of time.

Furthermore, the claws 76 of each nut gripping portion 73 prevent the stopper 71 and the gutter-side hanger nuts 32, 33 from moving relative to each other, such as allowing the gutter-side hanger nuts 32, 33 to slip out of their corresponding recesses 75. This prevents the stopper 71 from falling off the folding plate hanger due to wind, vibration, etc. In this example, the other configurations and functions are the same as those shown in Figures 1 to 10.

Sixth Embodiment
Fig. 19 is a perspective view of a part of the gutter structure 1c including the stopper 40c of the sixth embodiment, as seen from below. Fig. 20 is a perspective view of a part of the gutter structure 1c, as seen from almost directly below. Fig. 21 is a perspective view of the stopper 40c removed from the gutter structure 1c, as seen from above.

In this configuration, unlike the configurations shown in Figures 1-10, the nut gripping portion 90 of the first arm 41a of the stopper 40c does not have a gripping piece. Instead, a circular hole 91 is formed through the thickness. The lower gutter-side hanger nut 33 fits into the circular hole 91 with its corners fitted with a tight fit.

In the structure of this example, similar to the configuration of Figures 1 to 10, when the gutter-side hanger nut 33 tends to rotate in the loosening direction, the connecting wall portion 60 of the stopper 40c abuts against the middle portion of the hanger body 14 on the front side in the rotational direction, thereby preventing the gutter-side hanger nut 33 from rotating. This makes it possible to prevent the gutter-side hanger nut 33 from loosening from the hanging rod 11 for an extended period of time. In this example, the other configurations and operations are the same as those of the configuration of Figures 1 to 10.

Seventh Embodiment
Figure 22 is a cross-sectional view of a portion of a gutter structure 1d including a stopper 40d according to the seventh embodiment. Figure 23 is a perspective view of the gutter structure 1d of Figure 22, with the eaves gutter 80 omitted, viewed from below. In this configuration, the thickness of the first arm 92 of the stopper 40d is greater than in the configurations of Figures 5 to 10, and no nut gripping portion is provided. Instead, a nut pressing portion 93 is provided on the end of the first arm 92 opposite the second arm 51 and opposite the protrusion 42.

The nut pressing portion 93 is flat and has a rounded tip, with a circular hole 94 formed through the tip in the thickness direction. The portion of the hanging rod 11 located below the lower gutter-side hanger nut 33 is fitted into the circular hole 94 with a tightening margin and held in place. In this state, the upper surface of the nut pressing portion 93 is elastically pressed against the underside of the lower gutter-side hanger nut 33, coming into contact with the gutter-side hanger nut 33. The nut pressing portion 93 corresponds to the nut contact portion.

With the structure of this example, similar to the configuration of Figures 1 to 10, when the gutter-side hanger nut 33 tends to rotate in the loosening direction, the connecting wall portion 60 (see Figure 21) of the stopper 40d abuts against the middle portion of the hanger body 14 on the front side in the rotational direction, preventing the gutter-side hanger nut 33 from rotating. In this example, instead of the nut gripping portion 44 of Figures 1 to 10, the nut pressing portion 93 tends to rotate in the nut rotation direction due to elastic deformation of the nut pressing portion 93 caused by rotation of the gutter-side hanger nut 33, and the connecting wall portion 60 of the stopper 40d abuts against the hanger body 14 on the front side in the rotational direction. In this example, the other configurations and functions are the same as those of the configuration of Figures 1 to 10.

In the configurations shown in Figures 1 to 10, 19 to 21, and 22 to 23, the protrusions of the stoppers 40, 40c, and 40d may not interfere with the hanging portion main body 14, but may instead interfere with the eaves gutter 80, thereby preventing the nuts from loosening further.

In addition, to prevent loosening of the roof-side hanger nut that is connected above the corrugated roof 2 at the upper end of the hanging rod 11, the nut gripping portion 44 of the stopper 40 shown in Figures 1 to 10 can be used to grip and hold the roof-side hanger nut 30, and the protrusion 42 of the stopper 40 can be configured to abut against a roof panel door or a nail or screw driven into the roof on the front side in the rotation direction. The upper roof-side hanger nut 30 can also be prevented from loosening by applying an adhesive.

1, 1a to 1d Rain gutter structure, 2 Folded roof, 3 Peak portion, 3a Inclined wall portion, 4 Valley portion, 10 Folded plate hanger, 11 Hanging rod, 13 Rain gutter hanger portion, 14 Hanger portion main body, 14a Long hole, 15 Front ear locking portion, 16 Rear ear locking portion, 30, 31 Roof side hanger nut, 32, 33 Rain gutter side hanger nut, 40, 40a, 40c, 40d Hanger nut rotation stopper (stopper), 42 Protrusion, 42a Tapered surface, 42b Inclined surface, 42c First drain hole, 43a, 43b Recess, 44 Nut gripping portion, 45 Grip piece, 46 Receiving portion, 47 Wave portion, 48 Peak portion, 49 Base, 50 Recess, 52, 54 Clamp piece, 58 Base, 59: Recess, 59a: Drain hole, 60: Connecting wall, 62: Stopper, 63: Nut gripping portion, 64: Plate, 65: Finger, 66: Recess, 67: Curved surface, 68: Rib, 69: Wing, 70: Rod holding portion, 71: Stopper, 72: Stopper body, 73: Nut gripping portion, 74: Body, 75: Recess, 76: Claw, 77: Hanging portion body, 80: Eaves gutter, 90: Nut gripping portion, 91: Circular hole, 92: First arm, 93: Nut pressing portion, 94: Circular hole.

Claims (5)

A gutter structure including a folding roof suspender attached to a folding roof and a gutter suspended and supported by the folding roof via the folding roof suspender, and a suspender nut rotation stopper attached to the folding roof suspender,
The folding plate hanger includes a hanging rod having a threaded portion, a gutter hanger portion that hangs and holds the gutter, and a plurality of hanger nuts that are screwed to the hanging rod,
The plurality of hanger nuts include roof-side hanger nuts that fix the hanger rod to the corrugated roof, and gutter-side hanger nuts that fix the gutter hanging portion to the hanger rod,
The hoisting device nut rotation stopper has at least one nut contact portion provided on one side in the vertical direction and contacting at least one hoisting device nut of the plurality of hoisting device nuts, a stopper body provided in the middle in the vertical direction, and a clamping portion provided on the other side in the vertical direction, having two clamping pieces and fitting and supporting the hoisting rod inside,
The nut contact portion is
a gripping portion having two gripping pieces configured to be able to elastically grip an outer periphery of the one lifting device nut, and holding the one lifting device nut;
The distance between the two clips becomes smaller toward the tip,
The distance between the two gripping pieces becomes smaller toward the tip,
When the one suspender nut tends to rotate, the stopper body abuts against another portion of the gutter structure on the front side in the rotation direction, thereby preventing the at least one suspender nut from rotating.
Nut rotation stopper for lifting equipment. 2. The nut rotation stopper for a lifting device according to claim 1,
The gripping portion has a protrusion on an inner surface of each of the two gripping pieces that engages with the one lifting device nut, thereby holding the lifting device nut.
Nut rotation stopper for lifting equipment. The nut rotation stopper for a lifting device according to claim 1 or 2,
The gripping portion holds the nut for the gutter side hanger, and the stopper body abuts against the folding plate hanger, thereby preventing the nut for the gutter side hanger from rotating. The nut rotation stopper for a lifting device according to claim 1 or 2,
The gripping portion holds the nut for the roof side lifting device, and the stopper body abuts against the corrugated roof, thereby preventing the nut for the roof side lifting device from rotating. A nut rotation stopper for a lifting device according to any one of claims 1 to 4 is provided.
Gutter structure.