Fastening device, and corner member and fence using the same

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 wall formed by connecting side end portions of wall panels at an arbitrary angle.

Background Art

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

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

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

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0006] By the way, at the corner part of the wall, it is preferable to have a structure that absorbs various dimensional errors generated during construction. Therefore, in the above-described dimensional adjustment device, the fitting structure between the groove-shaped part and the slide piece can be fixed with screws, so it has excellent workability. However, simply screwing with screws may cause the screws to loosen over time. On the other hand, in the above-described connecting member, since the base material is formed of one member, the errors that can be absorbed by the dimensional adjustment work are relatively reduced.

[0007] The present invention aims to solve the above-mentioned problems and provide a wall provided with a corner member that is easy to adjust dimensions and is less likely to loosen.

Means for Solving the Problems

[0008] To achieve the above object, the present invention has the following configuration. That is, the wall according to the present invention is a wall in which wall panels are connected via a corner member. The corner member includes a front plate portion and a rear plate portion that overlap in the front-rear direction. The side end portion of the front plate portion is rotatably connected to one wall panel, and the side end portion of the rear plate portion is rotatably connected to the other wall panel. The front plate portion and the rear plate portion are fastened by a fastening device. The fastening device has a head, a corner root portion, and a screw portion, and includes a screw member inserted into a through hole formed in the front and rear directions in the front plate portion and the rear plate portion, a spring member inserted into the screw portion, and a nut member screwed onto the screw portion. The spring member has a folded-back portion at the upper end that can be 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 are each made to be able to contact the rear plate portion.

[0009] In the wall according to the present invention, the corner part of the screw member may have a flange part larger than the corner part on the screw part side.

Advantages of the Invention

[0010] According to the present invention, the dimensional adjustment in the width direction is improved by the front plate part and the rear plate part, and moreover, the front plate part and the rear plate part can be firmly connected by the fastening device.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0012] Next, with reference to the drawings, the best mode for carrying out the present invention will be specifically described. FIG. 1 is an explanatory view showing an embodiment of a wall according to the present invention, where (a) is a plan view and (b) is a front view. In the drawings, 10 is a wall panel, and 20 is a corner member that connects the wall panels 10 to each other. The wall 100 according to the present invention has the wall panels 10 connected to each other via the corner member 20. Here, the lateral direction is the same as the width direction of the wall panel 10 in FIG. 1, and the vertical direction is the same as the vertical direction in FIG. 1. Also, the front-rear direction is the front-rear direction in FIG. 1 when, with the wall panel 10 as a boundary, the side where the support column 30 for installing the wall panel 10 is installed is the rear side, and the opposite side is the front side.

[0013] The wall panel 10 has a flat panel material 12 attached to a rectangular frame body 11. In this embodiment, a plurality of them are connected in the lateral direction and stacked in two layers in the vertical direction, and are attached to the support column 30 standing on the installation surface. As shown in FIG. 1(a), on the drawing, the wall panels 10 arranged along the left-right direction and the wall panels 10 arranged along the vertical direction are connected via the corner member 20.

[0014] FIG. 2 is an explanatory view of the corner member 20 in FIG. 1, where (a) is a partially enlarged view of the vicinity of the corner member 20 in FIG. 1(a), and (b) is an enlarged cross-sectional view of the corner member 20. The corner member 20 has a vertical plate-shaped front plate portion 21 and a rear plate portion 22 arranged to overlap in the front-rear direction. The front plate portion 21 is rotatably connected to one of the wall panels 10 in the upper left in FIG. 2. Specifically, the side plate portion 23 attached to the side end portion of one of the wall panels 10 and the side end portion of the front plate portion 21 are rotatably connected by a hinge portion 24 having the vertical direction as an axis. Also, the rear plate portion 22 is connected to the other wall panel 10 in the lower right in FIG. 2. Specifically, the side plate portion 25 attached to the side end portion of the other wall panel 10 and the side end portion of the rear plate portion 22 are rotatably connected by a hinge portion 26 having the vertical direction as an axis.

[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. Thus, according to the angle formed between the width direction of one fence panel 10 and the width direction of the other fence panel 10, the positions of the front plate portion 21 and the rear plate portion 22 can be changed so as to overlap in the front-rear direction, and the corner member 20 can impart a pivoting function to the vicinity of the connection location 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 location. The fastening device 40 includes a screw member 50, a spring member 60, and a nut member 70, and 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 that penetrates the front and rear of the front plate portion 21 and a rear hole portion 22a that penetrates 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 elongated hole and the rear hole portion 22a is a horizontally elongated 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 therethrough, 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 with a head portion 51, a square root portion 52 having a rectangular cross-section, and a screw portion 53 with a male thread 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 square 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 approximately 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 square root portion 52 downward along the narrow-width portion 21c, the rotation of the screw member 50 around the longitudinal direction as the axis is suppressed, and the head portion 51 is locked to the front hole portion 21a, and it can be in a state of being temporarily fixed to the front plate portion 21 and the rear plate portion 22.

[0020] Next, the fastening method between 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 line B-B 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 substrate portion 61 made of metal in a vertical plate shape, 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 back. 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 notched upward, and the notch portion 62a can be fitted to the square root portion 52.

[0021] As a result, as shown in Fig. 7(b), the threaded portion 53 of the screw member 50 can be passed through the hole portion 61a of the substrate portion 61, and the notch portion 62a of the folded-back portion 62 can be locked to the corner root portion 52. That is, since the folded-back portion 62 can be easily arranged on the upper side and the bent portion 63 can be easily arranged on the lower side, it is not necessary to correct the displacement or adjust the position of the spring member 60 during the fastening operation.

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

[0023] As a result, as shown in Fig. 7(b), when the screw member 50 is temporarily fixed to the front plate portion 21 and the rear plate portion 22, the threaded portion 53 side of the screw member 50 may be inclined obliquely downward. However, after the notch portion 62a is locked to the corner root portion 52, even if it slides to the threaded portion 53 side, it stops at the flange portion 54. Therefore, the spring member 60 does not come off from the screw member 50 and can be temporarily fixed.

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

[0025] As a result, the folded-back portion 62 can be made to face the rear plate portion 22 above the rear hole portion 22a, and the bent portion 63 can be made to face the rear plate portion 22 below the rear hole portion 22a.

[0026] As shown in Fig. 8(a), when the nut member 70 is screwed onto the screw portion 53 of the screw member 50, as shown in Fig. 8(b), the nut member 70 abuts against the substrate portion 61 of the spring member 60. When the screwing operation is continued, since the spring member 60 moves toward the rear plate portion 22 side, the folded-back portion 62 abuts against the rear plate portion 22 above the rear hole portion 22a, and the bent portion 63 abuts against the rear plate portion 22 below the rear hole portion 22a. When the screwing operation is further continued, as shown in Fig. 8(c), the folded-back portion 62 and the bent portion 63 press the rear plate portion 22 toward the front plate portion 21 side. Thereby, the rear plate portion 22 and the front plate portion 21 can be firmly fastened by the fastening device 40.

[0027] Since the portions of the folded-back portion 62 and the bent portion 63 that abut against the rear plate portion 22 are formed flat, the rear plate portion 22 can be reliably pressed toward the front plate portion 21 side and firmly fastened.

[0028] The thickness dimension of the corner root portion 52, that is, the dimension from the head portion 51 to the flange portion 54, is made to be approximately the same as the total thickness of the front plate portion 21, the rear plate portion 22, and the folded-back portion 62 of the spring member 60. Therefore, it is possible to easily form a temporarily fixed state in which the screw member 50 is inserted through the rear hole portion 22a and the front hole portion 21a, and the notch portion 62a of the folded-back portion 62 is locked to the corner root portion 52.

[0029] In this embodiment, as shown in Fig. 1, the fastening device 40 is used at two different positions in the vertical direction with respect to the corner member 20. However, the number of times the fastening device 40 is used can be appropriately set according to the vertical length of the corner member 20.

[0030] The retaining wall 100 according to the present invention is a retaining wall 100 in which the retaining wall panels 10 are connected to each other via the corner member 20. The corner member 20 includes a front plate portion 21 and a rear plate portion 22 that overlap in the front-rear direction. The side end portion of the front plate portion 21 is rotatably connected to one retaining wall panel 10, and the side end portion of the rear plate portion 22 is rotatably connected to the other retaining wall panel 10. The front plate portion 21 and the rear plate portion 22 are fastened by a fastening device 40. The fastening device 40 has a head portion 51, a corner root portion 52, and a screw portion 53, and includes a screw member 50 inserted into a hole portion penetrating in the front-rear direction formed in the front 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-back portion 62 whose upper end portion is folded back and can be locked to the corner root portion 52, and a bent portion 63 whose lower end portion is bent in the same direction as the folded-back portion 62. The folded-back portion 62 and the bent portion 63 are each made to be able to contact the rear plate portion 22.

[0031] Thereby, within the range where the screw member 50 of the fastening device 40 can be inserted, it becomes easy to adjust the dimensional tolerance in the width direction of the front plate portion 21 and the rear plate portion 22. Further, since the spring member 60 has a folded-back portion 62 whose upper end portion is folded back and can be locked to the corner root portion 52, it is not necessary to correct or adjust the position deviation of the spring member 60 during the operation of the fastening device 40. Furthermore, since the folded-back portion 62 and the bent portion 63 of the spring member 60 can contact the rear plate portion 22, the rear plate portion 22 can be pressed toward the front plate portion 21 side to firmly fasten the front plate portion 21 and the rear plate portion 22.

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

[0033] Thereby, after locking the spring member 60 to the corner root portion 52, even if it slips toward the screw portion 53 side, it stops at the flange portion 54, so the spring member 60 does not come off from the screw member 50 and can be temporarily fixed.

Explanation of reference numerals

[0034] 10 Retaining wall panel 11 Frame body 12 Panel material 20 Corner member 21 Front plate part 21a Front hole part 21b Wide part 21c Narrow part 22 Rear plate part 22a Rear hole part 23 Side plate part 24 Hinge part 25 Side plate part 26 Hinge part 30 Support column 40 Fastening device 50 Screw member 51 Head part 52 Fillet part 53 Thread part 54 Flange part 60 Spring member 61 Substrate part 61a Hole part 62 Folded-back part 62a Notch part 63 Bent part 70 Nut member 100 Fence

Claims

1. A wall in which wall panels are connected together via corner members, The corner member is The vehicle has a front plate portion and a rear plate portion overlapping in the front-rear direction, The side end of the front plate is rotatably connected to one of the fence panels, The side end of the rear panel is rotatably connected to the other wall panel, The front plate portion and the rear plate portion are fastened by a fastening device, The fastening device comprises: A screw member having a head, a root, and a threaded portion, the screw member being inserted into a hole formed in the front plate portion and the rear plate portion and extending in the front-rear direction; A spring member that is inserted through the threaded portion; a nut member screwed onto the threaded portion, The spring member has an upper end portion folded back to be engaged with the corner root portion, and a lower end portion folded back in the same direction as the folded back portion, The folded-back portion and the bent portion are each capable of contacting the rear plate portion. A fence characterized by the above.

2. The square root portion of the screw member has a flange portion on the threaded portion side that is larger than the square root portion. A fence characterized by the above.

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