JP7015646B2 - bracket - Google Patents

Description

The present invention relates to a bracket for connecting a beam material bridged between columns installed at predetermined intervals to the column.

Conventionally, a fence body (beam material) is placed between a plurality of columns erected at predetermined intervals in a place where a sharp curve or angle such as a road curve is drawn, or in a place where the curve is inclined in the height direction at the same time. Fence body mounting metal fittings that enable mounting are known (see, for example, Patent Document 1).
The fence body mounting bracket includes a first mounting bracket, a second mounting bracket, and a bracket, and the bracket is interposed between the first and second mounting brackets to mount the end portion of the beam material. It is a member having a U-shaped cross section. By forming the end face on the support column side in an arc shape, the bracket corresponds to a large angle in the vertical direction on a slope. Further, the bracket is attached to the column via the first and second mounting brackets with the opening having a U-shaped cross section facing downward.

Japanese Patent No. 4214050

By the way, when a beam material is attached between columns erected on a slope via a bracket, for example, a plurality of workers lift or hold the beam material and bolt each end of the bracket and the beam material. It was necessary to connect them to each other with nuts and the like and attach them to the columns. When connecting the bracket and the beam material, the worker must insert the bolt into the aligned hole while maintaining the aligned state of the holes formed in both the bracket and the beam material through which the bolt is inserted. The work load was heavy.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a bracket that reduces the burden of attaching a beam material to a support column.

In order to solve the above problems, the present invention is a bracket for connecting a beam material spanned between columns installed at predetermined intervals to the column, and has a mounting portion attached to the column and the above. A pair of holding portions that are continuous with the mounting portion and extend in the height direction of the supporting column to sandwich the beam material in a state of facing each other, and a lower end of the holding portion in the height direction. Each portion is provided with an overhanging portion protruding from each other at a distance smaller than the width of the beam material.

Further, it is preferable that the pair of holding portions have a pair of holes facing each other and have an insertion member inserted into the pair of holes.

Further, the insertion member includes a head portion that covers the peripheral edge of the hole portion and a shaft portion that is inserted into the pair of hole portions, and a fastening member is provided on the shaft portion that protrudes from one of the hole portions. Is preferably attached.

The length of the shortest linear connection between the end of the overhanging portion on the opposite side of the mounting portion and the outer peripheral surface of the insertion member inserted into the hole is the beam member in the height direction. It is preferable that the hole portion is formed at a position larger than the length of the above.

It is preferable that the pair of sandwiching portions widen as the distance between them increases from the mounting portion.

According to the present invention, it is possible to reduce the burden of mounting work between the beam material and the support column.

It is a figure which shows the guard rail provided with the bracket which concerns on one Embodiment. It is a figure for demonstrating the composition of a beam material. It is a perspective view of the 1st bracket. It is a figure for demonstrating the structure of the 1st bracket. It is a perspective view of the 2nd bracket. It is a figure for demonstrating the structure of the 2nd bracket. It is a figure for demonstrating the method of erection of the beam material between columns through a bracket. It is a figure for demonstrating the position where the hole part through which the insertion member is inserted is formed.

A preferred embodiment of the present invention will be described with reference to the drawings. In addition, the embodiment shown below is an example, and various forms can be taken within the scope of the present invention.
FIG. 1 is a diagram showing a guard rail provided with a bracket according to the present embodiment. FIG. 2 is a diagram for explaining the configuration of the beam material. FIG. 3 is a perspective view of the first bracket. 4A and 4B are views for explaining the configuration of the first bracket, FIG. 4A is a front view of the bracket, and FIG. 4B is a side view of the bracket as viewed from the right side. 4 (c) is a plan view of the bracket viewed from above, and FIG. 4 (d) is a bottom view of the bracket viewed from below. FIG. 5 is a perspective view of the second bracket. 6A and 6B are views for explaining the configuration of the second bracket, FIG. 6A is a front view of the bracket, and FIG. 6B is a side view of the bracket as viewed from the right side. 6 (c) is a plan view of the bracket viewed from above, and FIG. 6 (d) is a bottom view of the bracket viewed from below.

<Structure of guard fence>
The guard fence 100 is installed, for example, at the boundary between a sidewalk and a roadway in order to prevent a person or a bicycle from falling off the road or crossing the road. The guard fence 100 is attached to a column 1 standing on the ground at a predetermined interval, a beam panel P provided so as to span the adjacent columns 1, and an upper and lower stage portion of the column 1. It has two first brackets 5 and a second bracket 7.

(Post)
A plurality of columns 1 are erected on the ground surface at predetermined intervals along the road. Further, when the road is a curved road such as a curve or a slope, the support column 1 is provided along the road curve or at a position having a different height along the slope surface. It may be done.
The support column 1 is a steel pipe formed in a cylindrical shape. Each of the columns 1 has mounting holes (not shown) for mounting the first bracket 5 on the outer peripheral surface.

(Beam panel)
As shown in FIG. 1, the beam panel P is bridged between the columns 1. In the embodiment shown in FIG. 1, the beam panel P includes a pair of upper and lower beam members 3 and vertical rails 4 arranged between the beam members 3 and 3.
The beam member 3 is a furring strip erected between the columns 1 in the beam panel P. The beam material 3 is a tubular frame material having slits 33s having a constant width extending continuously in the longitudinal direction by bending a metal plate.
The beam material 3 is provided on each of the upper and lower sides in the height direction of the column 1, and the beam material 3 provided on the upper side and the beam material 3 provided on the lower side have the same configuration. Hereinafter, the configuration will be described by taking as an example the beam member 3 provided on the upper side in the height direction of the column 1.

As shown in FIG. 2, the cross-sectional shape of the beam member 3 is, for example, a substantially pentagon of a home base type. Specifically, the beam member 3 is connected to the pair of side wall portions 31 facing each other and extending in parallel with each other, starting from the upper end portion in the height direction of the pair of side wall portions 31 and approaching each other. It has a pair of connecting wall portions 32 and a pair of slit wall portions 33 bent at substantially right angles so as to approach each other from the lower end portions in the height direction of the pair of side wall portions 31. Slits 33s are formed between the pair of slit wall portions 33.
At both ends of each side wall portion 31 in the longitudinal direction, holes 31a (see FIG. 7) through which bolts B2 for attaching the beam member 3 to the support column 1 via the brackets 5 and 7 are inserted are provided. There is. The holes 31a provided at each end are provided in pairs at positions facing each other. The shape of the hole 31a is not particularly limited and may be circular, elliptical or oval.
A plurality of vertical rails 4 are arranged in parallel with each other in the longitudinal direction between the pair of upper and lower beam members 3. The vertical rail 4 is formed of an elongated metal cylinder.

(bracket)
As shown in FIGS. 3 to 6, the first bracket 5 (hereinafter referred to as “bracket 5”) and the second bracket 7 (hereinafter referred to as “bracket 7”) are provided in the height direction of the support column 1. It is attached to the upper side and the lower side of the support column 1 to support the beam panel P in the beam material 3. Brackets 5 and 7 extend from the column 1 in different directions when attached to the column 1. The brackets 5 and 7 can be attached to the column 1 at an angle with each other in the horizontal direction.
As shown in FIGS. 3 and 4, the bracket 5 includes a mounting portion 51 that enables mounting on the support column 1, and a pair of holding portions 53 that sandwich the beam member 3 continuously provided on the mounting portion 51. 53 and the overhanging portions 55 and 55 provided at the lower end portions of the sandwiching portions 53 and 53 and projecting so as to approach each other are provided.

The mounting portion 51 has a shape that matches the cross-sectional shape of the support column 1, and in the present embodiment, it has an arc-shaped (or substantially C-shaped) cross-sectional shape. The mounting portion 51 has a predetermined length along the height direction of the support column 1 when it is attached to the support column 1, and is formed in a substantially cylindrical shape. The mounting portion 51 has an opening portion 51a that opens toward the side opposite to the holding portion 53. The opening 51a has a shape corresponding to the shape of the mounting portion 71 of the bracket 7, which will be described later, and accommodates the mounting portion 71.
The mounting portion 51 has a pair of holes 51b formed so as to face the lower portion of the opening 51a in the height direction of the support column 1. Bolts B1 are inserted into the holes 51b when the bracket 5 is attached to the support column 1 (see FIGS. 7 and 8).
A cylindrical cover member 51c is integrally provided at the upper end of the mounting portion 51 in the height direction. The cross-sectional shape of the cover member 51c substantially matches the cross-sectional shape of the mounting portion 51.

The sandwiching portion 53 is connected to the mounting portion 51 and is formed so as to have a surface extending along the height direction of the support column 1. The pair of sandwiching portions 53 sandwich the beam member 3 between them (see FIG. 2). When the bracket 5 is attached to the support column 1, the sandwiching portion 53 is formed so as to be continuous with each end portion in the circumferential direction of the attachment portion 51 and extend in a direction away from the support column 1. The pair of holding portions 53, 53 extend so as to widen the distance from each other along the direction away from the support column 1 with a predetermined distance from each other (see FIGS. 4 (c) and 4 (d)).

The sandwiching portion 53 has a substantially oval hole portion 53a and a substantially quadrangular hole portion 53b. The hole portion 53a is a hole through which a connecting bolt B2 is inserted when the beam member 3 is connected to the bracket 5, and is formed on the side away from the mounting portion 51 with respect to the hole portion 53b.
The hole 53b is formed between the opening 51a and the hole 53a. That is, the hole 53b is formed on the opening 51a side with respect to the hole 53a.
The shape of the hole 53a is not limited to an oval shape, and may be another shape such as an oval shape, a circle shape, or a rectangle shape. Other shapes such as oval and oval may be used.

The bracket 5 includes an insertion member 54 that is inserted from the hole 53b formed in one holding portion 53 toward the hole 53b formed in the other holding portion 53. The insertion member 54 is a metal bolt in the present embodiment. The insertion member 54 is not limited to a bolt, but may be a pin, and the material thereof may be a non-metal.
As shown in FIG. 3, the insertion member 54 includes a shaft portion 54a inserted through the hole portions 53b and 53b, and a head portion 54b integrally formed with the shaft portion 54a and having a diameter larger than that of the hole portion 53b. .. For example, a screw thread 54as is formed at the tip of the shaft portion 54a on the opposite side of the head portion 54b. The insertion member 54 has a fastening member 54N, for example, a nut or the like, which is screwed with a thread. By screwing the fastening member 54N into the thread 54as of the insertion member 54, it is possible to prevent the sandwiching portions 53 and 53 from separating from each other.

The overhanging portion 55 is integrally provided at the lower end portion of each holding portion 53 in the height direction of the support column 1. The overhanging portion 55 is provided over a part of the extending length of the holding portion 53. The overhanging portion 55 has a substantially rectangular shape. The two overhanging portions 55 and 55 are separated from each other at predetermined intervals. The maximum spacing Md (see FIGS. 4C and 4D) of the overhanging portions 55 and 55 is formed to be smaller than the width 3d of the beam member 3 (Md <3d). The width 3d is equal to the distance between the pair of side wall portions 31, 31 having the maximum width in the beam material 3.

As shown in FIGS. 5 and 6, the bracket 7 has a mounting portion 71 that enables mounting on the support column 1 and a pair of holding portions 73, 73 that sandwich the beam member 3 provided in series with the mounting portion 71. And the overhanging portions 75, 75 provided at the lower end portions of the sandwiching portions 73, 73 so as to approach each other.
The mounting portion 71 has a shape that matches the cross-sectional shape of the support column 1, and in the present embodiment, it has an arc-shaped (or substantially C-shaped) cross-sectional shape. The mounting portion 71 has a predetermined length along the height direction of the column 1, and is formed in a substantially cylindrical shape. The mounting portion 71 is mounted on the support column 1 in a state of being housed in the opening portion 51a of the mounting portion 51.
Further, holes 73a and 73b are formed in the holding portion 73 of the bracket 7, and the bracket 7 includes an insertion member 74 and a fastening member 74N to be inserted into the hole 73b.
Since the configuration of the holding portion 73, the insertion member 74, and the overhanging portion 75 of the bracket 7 is the same as the configuration of the holding portion 53, the inserting member 54, and the overhanging portion 55 of the bracket 5, the description thereof will be omitted.

<How to lay beam materials between columns>
Next, a method of erection of the beam member 3 between the columns 1 and 1 to which the brackets 5 and 7 are attached will be described with reference to FIG. 7. Hereinafter, a method of erection of a beam material between the columns 1 and 1 via the bracket 5 will be described. FIG. 7 is a diagram for explaining a method of erection of a beam member between columns via brackets.
As shown in FIG. 7, since the columns 1 and 1 are erected on a slope having a slope, the beam member 3 of the beam panel P is obliquely attached between the columns 1 and 1. In the embodiment shown in FIG. 7, the beam member 3 is erected between the columns 1 and 1 by the brackets 5 and 5, but the beam members 3 are erected between the brackets 7 and 7 or by the brackets 5 and 7. May be good.

First, the worker lifts the beam panel P and inserts both ends of the beam member 3 between the holding portions 53 and 53 of the brackets 5 and 5. Since the distance between the holding portions 53 and 53 increases as the distance from the support column 1 to which the bracket 5 is attached increases, the beam member 3 can be easily inserted between the holding portions 53 and 53.
Even if the worker releases the beam member 3 from the beam member 3 after inserting the beam member 3 between the holding portions 53 and 53 of the brackets 5 and 5, the brackets 5 and 5 are provided with the overhanging portion 55. The beam member 3 is temporarily placed on the overhanging portions 55 and 55. Since the maximum distance Md between the overhanging portions 55 and 55 is smaller than the width dimension 3d of the beam member 3, the beam member 3 does not fall from between the overhanging portions 55.
Further, even if the beam member 3 falls into the gap between the overhanging portions 55 and 55 and tries to widen the gap, the insertion member 54 is inserted into each of the hole portions 53b and 53b, and the tip of the insertion member 54 is a fastening member. Since it is tightened by 54N, it is possible to prevent the pair of holding portions 53, 53 from expanding.

The length of the beam member 3 is designed so that the distance between the columns 1 and 1 and the hole portion 31a of the beam member 3 and the hole portion 53a of the bracket 5 match. However, when the columns 1 are erected on a slope, the actual distance between the columns 1, 1 may deviate from the design interval. Due to the deviation of the standing interval between the columns 1 and 1, in the state where the beam material 3 is temporarily placed on the bracket 5, the end face of the beam material 3 slides toward the lowland side until it abuts on the column 1, and the beam material 3 is on the highland side. The end portion may fall from the overhanging portion 55 of the bracket 5 (the beam member 3 is indicated by a two-dot chain line).
It is conceivable to extend the length of the beam material 3 or extend the extending length of the overhanging portion 55 of the bracket 5 to prevent the fall, but in this case, the beam material 3 and the bracket 5 become large. It ends up.

On the other hand, the bracket 5 in the present embodiment is provided with a hole 53b between the mounting portion 51 and the hole 53a in the holding portions 53 and 53, and the insertion member 54 is inserted through the hole 53b. Therefore, even when the beam material 3 slides to the lowland side, the end surface of the beam material 3 lowered to the lower side abuts on the insertion member 54 on the lowland side, so that further slipping of the beam material 3 is suppressed. The end portion of the upper beam member 3 can be maintained in a state of being temporarily placed on the overhanging portion 55 (the beam member 3 is indicated by a alternate long and short dash line).
Since the state in which the beam material 3 is temporarily placed on the bracket 5 can be maintained, it is possible to suppress the increase in size of the beam material 3 and the bracket 5, and the state in which the beam material 3 is lifted by a plurality of workers is maintained. No need. Thus, the work load in the work of connecting the beam member 3 and the bracket 5 can be significantly reduced.

Further, as will be described with reference to FIG. 8, the hole portion 53b is formed in the following positional relationship with the beam member 3. FIG. 8 is a schematic view for explaining a position where a hole through which an insertion member is inserted is formed.
The end portion 55e of the overhanging portion 55 on the opposite side of the mounting portion 51 (see also FIGS. 4C and 4D) and the outer peripheral surface of the shaft portion 54a of the insertion member 54 are connected in a straight line at the shortest length. The hole portion 53b is formed in the sandwiching portion 53 at a position where the length l is larger than the dimension (length) 3l of the beam member 3 in the height direction of the support column 1. The "end of the overhanging portion on the opposite side of the mounting portion" is at least the end portion 55e at the connecting portion between the overhanging portion 55 and the holding portion 53.

Since the hole portion 53b is provided in the holding portion 53 at an appropriate position in relation to the insertion member 54 and the beam member 3, for example, the beam is provided between the columns 1 and 1 erected on a slope having a remarkably large slope. Even when the member 3 is tilted, the beam member 3 is securely temporarily placed on the overhanging portion 55 as long as the end surface of the beam member 3 is in contact with the shaft portion 54a of the insertion member 54. Can be maintained.
If the beam member 3 is temporarily placed on the bracket 5, one worker lifts the end portion of the beam member 3 housed in the bracket 5 and aligns the 31a of the beam member 3 with the hole portion 53a of the bracket 5. The beam member 3 can be easily connected to the bracket 5 simply by inserting the bolt B2.

<Others>
The present invention is not limited to the above-described embodiment, and can be appropriately modified without exceeding the scope of the present invention. For example, if the upper end portion of the support column 1 is closed by a predetermined cover or the like, the cover member 51c in the mounting portion 51 of the bracket 5 may be omitted.

1 Strut 3 Beam material 5,7 Bracket 51,71 Mounting part 53,73 Holding part 53b, 73b Hole part 54 Insertion member 55,75 Overhanging part

Claims (4)

It is a bracket that connects the beam material that is laid between the columns installed at a predetermined interval to the column.
The mounting part to be mounted on the support and
A pair of holding parts that are continuous with the mounting part, extend in the height direction of the support when mounted on the support, and sandwich the beam material in a state of facing each other.
Only at the lower end of each of the sandwiched portions in the height direction, an overhanging portion protruding from each other at a distance smaller than the width of the beam material, and an overhanging portion.
An insertion member inserted into the pair of holding portions,
Equipped with
Each of the sandwiched portions is open upward in the height direction, and a pair of first hole portions facing each other through which connecting bolts for connecting the beam material to the sandwiched portion are inserted, and the mounting portion. It has a pair of second hole portions formed between the portion and the first hole portion and facing each other.
The insertion member is inserted into the pair of second holes to suppress the separation of the pair of holding portions.
Bracket featuring that . The insertion member includes a head portion that covers the peripheral edge of the second hole portion and a shaft portion that is inserted into the pair of second hole portions, and the portion of the shaft portion that protrudes from one of the second hole portions. The bracket according to claim 1 , wherein a fastening member is attached to the bracket, and the shaft portion faces the end face of the beam member in a state where the beam member is attached to the holding portion. .. The length in which the end portion of the overhanging portion on the opposite side of the mounting portion and the shaft portion of the insertion member inserted into the second hole portion are connected in a straight line at the shortest length is the length in the height direction. The bracket according to claim 2 , wherein the second hole portion is formed at a position larger than the length of the beam member. The bracket according to any one of claims 1 to 3 , wherein the pair of sandwiching portions are spaced apart from each other as they move away from the mounting portion.

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