Fastening device, corner member using the same, and fence

Abstract

To provide a fence provided with a corner member allowing size to be easily adjusted and loosening to hardly happen.SOLUTION: A fence 100 is assembled by connecting fence panels 10 to each other through a corner member 20. The corner member 20 is provided with a front plate part 21 and a rear plate part 22 overlapping each other in a longitudinal direction, a side end part of the front plate part 21 is rotatably connected to one of the fence panels 10, a side end part of the rear plate part 22 to the other of the fence panels 10, and the front plate part 21 and the rear plate part 22 are fastened on a fastening device 40. The fastening device 40 has a head part 51, a square neck part 52, and a screw part 53, and is provided with a screw member 50 to be inserted into holes of the front plate part 21 and the rear plate part 22, a spring member 60 to be inserted into the head part 53, and a nut member 70 to be screwed on the screw part 53. The spring member 60 has a folded part 62 engageable on the square neck part 52 by folding an upper end part thereof, and a bent part 63 with a lower end bent. The folded part 62 and the bent part 63 are configured to be allowed to abut on the rear plate part 22.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a fence in which side ends of fence panels are connected at an arbitrary angle.

Background Art

[0002] Generally, regarding fences installed along a site boundary or an adjacent land boundary, various methods have been proposed particularly for connecting fence panels at a corner. For example, there are those in which a connecting member is extended laterally from a side end of a panel and the connecting members are connected to each other, and those in which a connecting member is extended from a side end of a panel and the connecting member is connected by a connecting member. In the former, it is pivotally supported at the connecting location of the connecting member, and in the latter, the connecting member is pivotally supported at both side ends of the connecting member.

[0003] Regarding the latter, for example, a groove-shaped portion having a substantially U-shaped cross section is extended from a shaft portion of a first hinge member pivotally supported at a side end of a vertically long wall body, and a slide piece is extended from a shaft portion of a second hinge member pivotally supported at an opposing side end face of a wall body adjacent to the wall body, and this slide piece is slidably inserted into the groove-shaped portion, and a partition wall dimension adjusting device in which a screw that can press the tip against the slide piece is screwed from the outer surface of the groove-shaped portion has been proposed (for example, see Patent Document 1).

[0004] Also, the applicant of the present application has proposed a fence in which a plurality of fence panels attached to columns erected on the ground at appropriate intervals are connected laterally via a connecting member, the connecting member is rotatably connected to panel attachment members via fitting portions on both side portions of a vertically long substrate, and a cover portion having a U-shaped cross section formed on the panel attachment member covers and attaches a side end of the fence panel, the cover portion is attached to be slidable in the vertical direction with respect to the fence panel, and downward sliding of the cover portion is blocked by an end member provided at an upper end portion of the panel attachment member (for example, see Patent Document 2).

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Public Gazette No. 59-3111 [Patent Document 1] Japanese Patent Publication No. 2009-1968 [Disclosure of the Invention] [Problems that the invention aims to solve]

[0006] Incidentally, at the corners of a wall, it is preferable to have a structure that can absorb various dimensional errors that occur during construction. In the aforementioned dimensional adjustment device, the fitting structure of the groove-shaped part and the sliding piece can be fixed with screws, making it easy to install. However, simply screwing it in may lead to the screws loosening over time. On the other hand, in the aforementioned connecting member, since the base material is formed from a single piece, the errors that can be absorbed by dimensional adjustment work are relatively small.

[0007] The present invention aims to solve the aforementioned problems and provide a fence equipped with corner members that are easy to adjust in size and less prone to loosening. [Means for solving the problem]

[0008] To achieve the above objective, the present invention has the following configuration. That is, the fence according to the present invention is a fence in which fence panels are connected to each other via a corner member, the corner member comprising a front plate portion and a rear plate portion that overlap in the front-rear direction, the side end of the front plate portion being rotatably connected to one fence panel, the side end of the rear plate portion being rotatably connected to the other fence panel, the front plate portion and the rear plate portion being fastened together by a fastening device, the fastening device comprising a head portion, a corner root portion and a threaded portion, a threaded member inserted through a hole formed in the front plate portion and the rear plate portion that penetrates from front to back, a spring member inserted through the threaded portion and a nut member screwed onto the threaded portion, the spring member comprising a folded portion at the upper end that can be folded back and locked to the corner root portion, and a bent portion at the lower end that is bent in the same direction as the folded back portion, the folded back portion and the bent portion being able to abut against the rear plate portion, respectively.

[0009] In the fence according to the present invention, the square root portion of the screw member may have a flange portion larger than the square root portion on the screw portion side. [Effects of the Invention]

[0010] According to the present invention, the width dimension can be easily adjusted by the front plate and the rear plate, and the front plate and the rear plate can be firmly connected by the fastening device. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is an explanatory diagram showing one embodiment of the fence according to the present invention. [Figure 2] This is an explanatory diagram of the corner member shown in Figure 1. [Figure 3] This is a view from arrow A in Figure 1. [Figure 4] Figure 3 is an explanatory diagram showing the relationship between the corner member and the fastening member. [Figure 5] This is an explanatory diagram of the screw component of a fastening device. [Figure 6] This is an explanatory diagram of the spring component of a fastening device. [Figure 7] This is an explanatory diagram showing the relationship between the screw member and the spring member. [Figure 8] This is an explanatory diagram showing the relationship between the screw member, spring member, and nut member. [Modes for carrying out the invention]

[0012] Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings. Figure 1 is an explanatory diagram showing one embodiment of a fence according to the present invention, where (a) is a plan view and (b) is a front view. In the drawing, 10 is a fence panel, and 20 is a corner member connecting the fence panels 10 together, and in the fence 100 according to the present invention, the fence panels 10 are connected to each other via the corner members 20. Here, the horizontal direction is the same direction as the width direction of the fence panel 10 in Figure 1, and the vertical direction is the same direction as the vertical direction in Figure 1. The front-to-back direction is the front-to-back direction when the fence panel 10 is used as a boundary in Figure 1, with the side where the support posts 30 to which the fence panel 10 is attached being installed being the rear side and the opposite side being the front side.

[0013] The fence panel 10 consists of a rectangular frame 11 to which flat panel material 12 is attached. In this embodiment, multiple panels are connected horizontally and stacked in two layers vertically, and are attached to support columns 30 erected on the installation surface. As shown in Figure 1(a), fence panels 10 arranged along the left-right direction and fence panels 10 arranged along the vertical direction are connected via corner members 20.

[0014] Figure 2 is an explanatory diagram of the corner member 20 in Figure 1, where (a) is a magnified view of the area around the corner member 20 in Figure 1(a), and (b) is a magnified cross-sectional view of the corner member 20. The corner member 20 consists of a vertical plate-shaped front plate portion 21 and a rear plate portion 22 that are arranged overlapping in the front-rear direction. The front plate portion 21 is rotatably connected to one of the wall panels 10 in the upper left of Figure 2. Specifically, the side plate portion 23 attached to the side end of one of the wall panels 10 and the side end of the front plate portion 21 are rotatably connected by a hinge portion 24 with an axis in the vertical direction. The rear plate portion 22 is connected to the other wall panel 10 in the lower right of Figure 2. Specifically, the side plate portion 25 attached to the side end of the other wall panel 10 and the side end of the rear plate portion 22 are rotatably connected by a hinge portion 26 with an axis in the vertical direction.

[0015] As a result, the front plate portion 21 can be repositioned in the R1 direction and the rear plate portion 22 can be repositioned in the R2 direction. Therefore, the positions of the front plate portion 21 and the rear plate portion 22 can be changed according to the angle formed between the width direction of one fence panel 10 and the width direction of the other fence panel 10, and they can be overlapped in the front-rear direction. The corner member 20 can impart a folding function to the vicinity of the connection portion between the fence panels 10. The front plate portion 21 and the rear plate portion 22 are fastened by a fastening device 40 at the overlapping portion. The fastening device 40 includes a screw member 50, a spring member 60, and a nut member 70. The front plate portion 21 and the rear plate portion 22 are fastened by the screw member 50, the spring member 60 attached thereto, and the nut member 70.

[0016] Next, the fastening structure between the front plate portion 21 and the rear plate portion 22 will be described. FIG. 3 is an enlarged view of the vicinity of the fastening device 40 as viewed in the direction of arrow A in FIG. 1, FIG. 4 is an explanatory view showing the relationship between the corner member 20 and the fastening device 40 in FIG. 3, and FIG. 5 is an explanatory view of the screw member 50 of the fastening device 40, where (a) is a front view and (b) is a side view. As shown in FIG. 3, the screw member 50 is inserted through a front hole portion 21a penetrating through the front and rear of the front plate portion 21 and a rear hole portion 22a penetrating through the front and rear of the rear plate portion 22.

[0017] As shown in FIG. 4, since the front hole portion 21a is a vertically long hole and the rear hole portion 22a is a horizontally long hole, at a position where the front hole portion 21a and the rear hole portion 22a overlap in the front-rear direction and the screw member 50 can be inserted, the front plate portion 21 and the rear plate portion 22 can be fastened by the fastening device 40. That is, within the range where the screw member 50 can be inserted, the positions of the front plate portion 21 and the rear plate portion 22 in the height direction and the width direction can be adjusted.

[0018] As shown in Fig. 5, the screw member 50 is arranged in this order: a head portion 51, a corner root portion 52 having a rectangular cross-section, and a screw portion 53 with a male screw formed on the outer peripheral portion. On the other hand, as shown in Fig. 4, the front hole portion 21a has a wide-width portion 21b through which the head portion 51 of the screw member 50 can be inserted, and a narrow-width portion 21c through which the head portion 51 cannot pass but the screw portion 53 can pass and the rotation around the axis of the corner root portion 52 is restricted. The wide-width portion 21b is arranged at the upper part and the narrow-width portion 21c is arranged at the lower part. In this embodiment, the vertical dimensions of the rear hole portion 22a are made substantially the same as the vertical dimensions of the front hole portion 21a.

[0019] Thereby, the operator can insert the screw member 50 from the head portion 51 side into the rear hole portion 22a and the front hole portion 21a from the rear side of the wall 100 where the support column 30 is erected. Thereafter, by moving the corner root portion 52 downward along the narrow-width portion 21c, the rotation of the screw member 50 around its longitudinal axis is suppressed, and the head portion 51 is locked to the front hole portion 21a, and it can be in a temporarily fixed state to the front plate portion 21 and the rear plate portion 22.

[0020] Next, the method of fastening the front plate portion 21 and the rear plate portion 22 will be described. Fig. 6 is an explanatory view of the spring member 60 of the fastening device 40, (a) is a front view, (b) is a side view, (c) is an enlarged cross-sectional view taken along the B-B line of (b), Fig. 7 is an explanatory view showing the relationship between the screw member 50 and the spring member 60, and Fig. 8 is an explanatory view showing the relationship between the screw member 50, the spring member 60, and the nut member 70. As shown in Fig. 7(a), after inserting the screw member 50 through the front plate portion 21 and the rear plate portion 22, the spring member 60 is attached. As shown in Fig. 6, the spring member 60 has a vertical plate-shaped substrate portion 61 made of metal, a folded-back portion 62 formed by folding back the upper end portion of the substrate portion 61, and a bent portion 63 formed by bending the lower end portion of the substrate portion 61 to the same side as the direction in which the folded-back portion 62 is folded. The substrate portion 61 has a hole portion 61a penetrating in the thickness direction. The folded-back portion 62 hangs downward and its lower end portion has a notch portion 62a that is cut out upward, and the notch portion 62a can be fitted to the corner root portion 52.

[0021] As a result, as shown in Figure 7(b), the threaded portion 53 of the screw member 50 can be passed through the hole 61a of the base plate portion 61, and the notched portion 62a of the folded portion 62 can be locked to the corner root portion 52. In other words, the folded portion 62 can be easily positioned on the upper side and the bent portion 63 on the lower side, so there is no need to correct or adjust the position of the spring member 60 during the fastening work.

[0022] In this embodiment, the screw member 50 has a flange portion 54 on the threaded portion 53 side of the square root portion 52 that is larger than the square root portion 52.

[0023] As a result, as shown in Figure 7(b), when the screw member 50 is temporarily fixed to the front plate portion 21 and the rear plate portion 22, the screw member 50 may tilt diagonally downwards on the threaded portion 53 side. However, after the notch portion 62a engages with the corner root portion 52, even if it slides toward the threaded portion 53 side, it will be stopped by the flange portion 54. Therefore, the spring member 60 will not come off the screw member 50, and it can be temporarily fixed.

[0024] The folded portion 62 and the bent portion 63 of the screw member 50 face the rear plate portion 22 when the notched portion 62a is locked to the corner root portion 52, and the vertical dimension from the folded portion 62 to the bent portion 63 is longer than the vertical dimension of the rear hole portion 22a.

[0025] This allows the folded portion 62 to face the rear plate portion 22 above the rear hole portion 22a, and the bent portion 63 to face the rear plate portion 22 below the rear hole portion 22a.

[0026] As shown in Figure 8(a), when the nut member 70 is screwed into the threaded portion 53 of the screw member 50, the nut member 70 comes into contact with the base portion 61 of the spring member 60, as shown in Figure 8(b). As the screwing operation continues, the spring member 60 moves toward the rear plate portion 22, so the folded portion 62 comes into contact with the rear plate portion 22 above the rear hole portion 22a, and the bent portion 63 comes into contact with the rear plate portion 22 below the rear hole portion 22a. As the screwing operation continues further, as shown in Figure 8(c), the folded portion 62 and the bent portion 63 press the rear plate portion 22 toward the front plate portion 21. As a result, the fastening device 40 can firmly fasten the rear plate portion 22 and the front plate portion 21.

[0027] Since the folded portion 62 and the bent portion 63 are formed flat where they come into contact with the rear plate portion 22, the rear plate portion 22 can be reliably pressed against the front plate portion 21 and firmly fastened.

[0028] The thickness of the square root portion 52, that is, the dimension from the head portion 51 to the flange portion 54, is approximately the same as the total thickness of the front plate portion 21, the rear plate portion 22, and the folded portion 62 of the spring member 60. Therefore, it is easy to insert the screw member 50 through the rear hole portion 22a and the front hole portion 21a to temporarily fasten the notch portion 62a of the folded portion 62 to the square root portion 52.

[0029] In this embodiment, as shown in Figure 1, the fastening device 40 is used at two different locations in the vertical direction on the corner member 20, but the number of fastening devices 40 used can be appropriately set according to the vertical length of the corner member 20.

[0030] The fence 100 according to the present invention is a fence 100 in which fence panels 10 are connected to each other via corner members 20, the corner members 20 comprising a front plate portion 21 and a rear plate portion 22 that overlap in the front-rear direction, the side end of the front plate portion 21 being rotatably connected to one fence panel 10, the side end of the rear plate portion 22 being rotatably connected to the other fence panel 10, the front plate portion 21 and the rear plate portion 22 being fastened together by a fastening device 40, the fastening device 40 having a head portion 51, a corner root portion 52 and a threaded portion 53, the front plate portion The device comprises a screw member 50 inserted through a hole formed in the rear plate portion 21 and the rear plate portion 22, a spring member 60 inserted into the screw portion 53, and a nut member 70 screwed onto the screw portion 53. The spring member 60 has a folded portion 62 at its upper end that can be folded back and locked into the corner root portion 52, and a bent portion 63 at its lower end that is bent in the same direction as the folded portion 62, and the folded portion 62 and the bent portion 63 are each capable of contacting the rear plate portion 22.

[0031] This makes it easy to adjust the widthwise dimensions of the front plate portion 21 and the rear plate portion 22 within the range through which the screw member 50 of the fastening device 40 can be inserted. Furthermore, since the spring member 60 has a folded portion 62 at its upper end that can be folded back and locked into the corner root portion 52, there is no need to correct or adjust the position of the spring member 60 when operating the fastening device 40. Moreover, since the folded portion 62 and the bent portion 63 of the spring member 60 can come into contact with the rear plate portion 22, the rear plate portion 22 can be pressed towards the front plate portion 21, thereby firmly fastening the front plate portion 21 and the rear plate portion 22 together.

[0032] In the fence 100 according to the present invention, the square root portion 52 of the screw member 50 may have a flange portion 54 on the screw portion 53 side that is larger than the square root portion 52.

[0033] As a result, even if the spring member 60 slides towards the screw portion 53 after being locked to the square root portion 52, it will be stopped by the flange portion 54, so the spring member 60 will not come off the screw member 50 and can be temporarily fixed in place. [Explanation of Symbols]

[0034] 10 Wall Panels 11 Frame 12 Panel materials 20 Corner members 21 Front plate part 21a Anterior hole 21b Wide section 21c narrow part 22 Rear plate part 22a Posterior foramen 23 Side plate part 24 Hinge section 25 Side plate part 26 Hinge section 30 pillars 40 Fastening device 50 Screw member 51 Head 52 Root section 53 Threaded part 54 Guard section 60 Spring component 61 Circuit board section 61a Hole 62 Folded section 62a Notch 63 Folding section 70 Nut component 100 Wall

Claims

1. A corner member for connecting fence panels using a fastening device, The aforementioned corner member is It comprises a front plate portion and a rear plate portion that overlap in the front-rear direction, The side end of the front plate portion is rotatably connected to one of the wall panels. The side end of the rear plate portion is rotatably connected to the other wall panel. The front plate portion and the rear plate portion are fastened together by the fastening device. The fastening device is A screw member is inserted into a hole formed in the front and rear plate portions that penetrates from front to back, A spring member inserted through the screw member, The system comprises a nut member that is screwed onto the aforementioned screw member, The spring member has a folded portion at its end, A corner member in which the folded portion can abut against the rear plate portion.

2. A fence in which fence panels are connected to each other via the corner members described in claim 1.

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