JP7620318B2 - Mounting Structure - Google Patents

Description

The present invention relates to a mounting structure for attaching a beam to a support.

Conventionally, when installing a safety fence on a sidewalk or road, a member is required to attach a beam to a support post with one end buried in the ground. Safety fences are installed not only on flat surfaces, but also on slopes such as sloping ground or stairs, and on curved roads, so the posture of the member that attaches the post and beam varies. It is possible to prepare different types of members depending on the installation form of the safety fence, but this may lead to an increase in the number of parts and complicated parts management, which may lead to an increase in costs. Therefore, a mounting bracket has been devised that uses multiple mounting brackets whose postures can be adjusted relative to each other, allowing the mounting angle of the beam to be adjusted relative to the post (see Patent Document 1).

JP 2019-60174 A

The present invention was made in consideration of these circumstances, and one of its exemplary objectives is to provide a new mounting structure that allows posts or brackets to be attached to beams in multiple positions.

In order to solve the above problems, one aspect of the present invention is a mounting structure for mounting a beam to a support or bracket, and includes a holding member for holding the beam, and a support member configured to support the holding member in multiple positions. The support member is configured to be fixed to the support or bracket in multiple positions without the holding member.

According to this embodiment, the posts or brackets and the beams can be attached in multiple positions, so the same mounting structure can be used to install the safety fence or handrail in various locations regardless of its position.

A pair of retaining members may be provided on either side of the support member. This allows beams to be installed on both sides from the posts or brackets.

The retaining member and the supporting member may both have a circular outer periphery and be connected in a straight line to the cylindrical beam. This allows the cross-sectional shapes of the beam and the mounting structure to be roughly uniform, resulting in a unified design with minimal surface irregularities.

The retaining member, supporting member and beam may be arranged so as not to intersect with the support. This makes it less likely that the hands will interfere with the support when the beam is used as a handrail and the user moves while holding the handrail.

The retaining member and the supporting member may be cast parts manufactured in a mold. This makes it possible to produce rust-resistant components with complex shapes at low cost.

The retaining member may have a spherical protrusion, a disk portion having one end face shaped like a mortar and the protrusion provided on the end face, and a semi-cylindrical portion provided on the opposite side of the disk portion to the protrusion and onto which the cylindrical beam is inserted. As a result, one end of the cylindrical beam is blocked by the disk portion, making it difficult for water, dust, and the like to enter the interior of the beam.

The support member is made by fitting two similarly shaped semi-cylindrical parts together, and the semi-cylindrical parts may have hemispherical recesses at both ends into which the protrusions of the holding member fit. This makes it easier for the holding member to take various positions relative to the support member.

In addition, any combination of the above components, and any conversion of the present invention into a method, device, system, etc., are also valid aspects of the present invention.

According to the present invention, the posts or brackets can be attached to the beams in multiple positions.

1 is a front view showing a schematic configuration of a prevention fence according to a first embodiment of the present invention; FIG. 2 is a perspective view showing a state in which the mounting structure according to the first embodiment holds a beam material. 3 is a perspective view of the mounting structure shown in FIG. 2 in which some components of the holding member are omitted. FIG. 4(a) is a perspective view of the first semi-cylindrical part, and FIG. 4(b) is a perspective view of the first semi-cylindrical part as viewed from a different direction than that of FIG. 4(a). FIG. 2 is a top view of the first semi-cylindrical part. FIG. 13 is a top view of the second semi-cylindrical part. 7(a) is a side view of the holding member in this embodiment, FIG. 7(b) is a view of the holding member shown in FIG. 7(a) from direction A, FIG. 7(c) is a view of the holding member shown in FIG. 7(a) from direction B, and FIG. 7(d) is a view of the holding member shown in FIG. 7(a) from direction C. FIG. 8(a) is a front view of an end fitting according to this embodiment, and FIG. 8(b) is a cross-sectional view taken along line DD of the end fitting shown in FIG. 8(a). 13 is a front view showing the schematic configuration of a prevention fence according to a second embodiment. FIG. FIG. 11 is a front view showing the schematic configuration of a safety fence according to a third embodiment. FIG. 13 is a front view showing a schematic configuration of a handrail according to a fourth embodiment. FIG. 12(a) is a side view of the bracket fixed to the wall, and FIG. 12(b) is a front view of the bracket fixed to the wall. A top view showing the schematic configuration of a prevention fence in accordance with a fifth embodiment.

The present invention will be described below with reference to the drawings based on the embodiment. The same or equivalent components, members, and processes shown in each drawing are given the same reference numerals, and duplicated descriptions will be omitted as appropriate. Furthermore, the embodiment does not limit the invention but is merely an example, and all of the features and combinations described in the embodiment are not necessarily essential to the invention. The mounting structure according to this embodiment is for attaching and fixing beams to posts fixed to the ground or brackets fixed to a wall, and can be used, for example, for safety fences on roads and sidewalks.

(First embodiment)
Fig. 1 is a front view showing a schematic configuration of a prevention fence according to a first embodiment. The prevention fence 10 shown in Fig. 1 comprises a number of posts 12 each having one end fixed to the ground G, a number of beams 14 extending horizontally between the posts, and a number of mounting structures 16 for attaching the beams 14 to the posts 12.

Figure 2 is a perspective view showing the state in which the mounting structure 16 according to the first embodiment holds the beam 14. Figure 3 is a perspective view of the mounting structure 16 shown in Figure 2 with some parts of the holding member omitted. The mounting structure 16 comprises a holding member 18 that holds the beam 14, and a support member 20 that is configured to support the holding member 18 in multiple positions. The support member 20 is configured so that it can be fixed to the support 12 in multiple positions without the holding member 18. The support member 20 according to this embodiment is formed by fitting together a pair of semi-cylindrical parts that are substantially similar in shape.

Figure 4(a) is a perspective view of the first semi-cylindrical part, and Figure 4(b) is a perspective view of the first semi-cylindrical part seen from a different direction than Figure 4(a). Figure 5 is a top view of the first semi-cylindrical part. Figure 6 is a top view of the second semi-cylindrical part. The first semi-cylindrical part 20a and the second semi-cylindrical part 20b differ primarily in the shape of the holes for the bolts that are used to fasten the parts together, but otherwise are substantially the same in shape.

The first semi-cylindrical part 20a has a bolt hole 22 that penetrates from the outer periphery of the body 21 toward the center. The bolt hole 22 has a large diameter portion 22a large enough to accommodate the head of the bolt so that the head does not protrude from the first semi-cylindrical part 20a, and a small diameter portion 22b through which the threaded portion of the bolt passes. The small diameter portion 22b has a smaller diameter than the large diameter portion 22a, and may or may not have a female thread formed on its inner circumference.

Half-dome shaped connecting parts 24 are provided integrally with the body 21 on both sides of the body 21 of the first semi-cylindrical part 20a. A semi-spherical recess 24a is formed inside the connecting parts 24 into which the protrusion of the holding member 18 described below fits. On the side of the body 21 facing the second semi-cylindrical part 20b, a reference surface 25a that forms the central cross section of the support member 20, a convex surface 25b that protrudes from the reference surface 25a, a concave surface 25c that is recessed from the reference surface 25a, and a concave surface 25d that is further recessed than the concave surface 25c are formed.

Similarly, the second semi-cylindrical part 20b shown in FIG. 6 has a bolt hole 28 formed through the body 26 from the outer periphery toward the center. The bolt hole 28 is where the threaded portion of the bolt passes through, and may or may not have a female thread formed on the inner periphery. If the bolt hole 28 does not have a female thread, a hole with a female thread may be formed in part of the support 12.

On both sides of the body 26 of the second semi-cylindrical part 20b, half-dome shaped connecting parts 30 are provided integrally with the body 26. On the inside of the connecting parts 30, a semi-spherical recess 30a is formed into which the protrusion of the holding member 18 described below fits. On the side of the body 26 facing the first semi-cylindrical part 20a, a reference surface 32a that is the central cross section of the support member 20, a convex surface 32b that protrudes from the reference surface 32a, a concave surface 32c that is recessed from the reference surface 32a, and a concave surface 32d that is further recessed than the concave surface 32c are formed.

In the support member 20 according to this embodiment, when the first semi-cylindrical part 20a and the second semi-cylindrical part 20b are assembled, the convex surface 25b of the first semi-cylindrical part 20a enters the concave surface 32c of the second semi-cylindrical part 20b, and the convex surface 32b of the second semi-cylindrical part 20b enters the concave surface 25c of the first semi-cylindrical part 20a, so that they are integrated at a predetermined position. As a result, the support member 20 becomes a member with a circular outer periphery. In addition, the support member 20 has a triangular slit 34 formed by the concave surface 25d of the first semi-cylindrical part 20a facing the concave surface 32d of the second semi-cylindrical part 20b (see FIG. 2). The support member 20 may be configured so that a part of the support or bracket enters the slit 34, so that the support member 20 can be attached to the support or bracket.

Next, the holding member will be described in detail. Fig. 7(a) is a side view of the holding member according to this embodiment, Fig. 7(b) is a view of the holding member shown in Fig. 7(a) from direction A, Fig. 7(c) is a view of the holding member shown in Fig. 7(a) from direction B, and Fig. 7(d) is a view of the holding member shown in Fig. 7(a) from direction C.

As shown in Figures 3 and 7, the retaining member 18 according to this embodiment has a spherical protrusion 36, a disk portion 38 having one end face 38a shaped like a mortar and having the protrusion 36 on the end face 38a, and a semi-cylindrical portion 40 that is provided on the opposite side of the disk portion 38 from the protrusion 36 and into which the cylindrical beam 14 is inserted. A screw hole 42 is formed in the semi-cylindrical portion 40 through which a screw passes to fasten the beam 14 and the retaining member 18 to each other.

The outer diameter of the disc portion 38 and the inner diameter of the cylindrical beam material 14 are approximately the same, and as shown in Figure 2, by aligning the disc portion 38 of the retaining member 18 with the end of the beam material 14 and screwing them together, one end of the cylindrical beam material 14 is blocked by the disc portion 38, making it difficult for water, dust, etc. to enter the inside of the beam material 14.

As shown in FIG. 3, the holding member 18 is supported by the support member 20 by fitting the spherical protrusion 36 into the recess 24a of the first semi-cylindrical part 20a and the second semi-cylindrical part 20b. Because the connection part 24 of the support member 20 is dome-shaped and the end face 38a of the holding member 18 is cone-shaped, the holding member 18 can take various positions relative to the support member 20 with the protrusion 36 at the center.

The retaining member 18 and supporting member 20 in this embodiment are made of cast parts manufactured in a mold. Stainless steel is an example of a casting material. This makes it possible to produce rust-resistant, complex-shaped components at low cost. In other words, the retaining member and supporting member are preferably shaped so that they can be manufactured in a mold. Furthermore, the mounting structure 16 combining such retaining member 18 and supporting member 20 allows the position of the retaining member 18 relative to the supporting member 20 to be freely changed to a certain degree, and the support column 12 and beam 14 can be attached in multiple positions. As a result, the same mounting structure can be used to install the safety fence or handrail in various locations regardless of its position.

For example, the prevention fence 10 shown in Figure 1 uses six mounting structures 16 to attach beams 14 to the posts 12. The mounting structures 16 that attach the posts and beams 14 in the center and on the right side of Figure 1 have a pair of retaining members 18 sandwiching a support member 20, allowing the beams 14 to be installed on both sides of the post 12.

On the other hand, the mounting structure 16 for attaching the support 12 and beam 14 on the far left side of Figure 1 only has the beam 14 on one side, so only one retaining member 18 is required for the support member 20 to support. However, if the retaining member 18 is not provided at one of the connection parts 24 of the support member 20, the recess 24a will be exposed, leaving room for improvement from a design standpoint. Therefore, we devised an end fitting that can be attached to the connection part 24 of the support member 20 instead of the retaining member 18.

Figure 8(a) is a front view of the end fitting 44 according to this embodiment, and Figure 8(b) is a cross-sectional view taken along line D-D of the end fitting shown in Figure 8(a). The end fitting 44 is a member having a cylindrical outer shape, and a semi-spherical protrusion 44b is provided on the bottom surface 44a. The protrusion 44b is shaped to fit into the recess 24a of the support member 20, and by attaching the end fitting 44 to the support member 20, the recess 24a of the support member 20 can be prevented from being exposed.

The outer periphery of multiple components such as the end fittings 44, support member 20, and retaining member 18 are all circular and connected in a straight line to the cylindrical beam 14. This allows the cross-sectional shape of the beam 14 and mounting structure 16 to be roughly constant, realizing a unified design with minimal surface irregularities. In addition, the retaining member 18, support member 20, and beam 14 in this embodiment are positioned in front of (or behind) the support 12 so as not to intersect with the support 12. This makes it less likely that the hands will interfere with the support 12 when the beam 14 is used as a handrail, even if the user moves while holding the handrail.

Next, the changes in the posture of the mounting structure due to differences in the installation location will be explained in each of the following embodiments.

Second Embodiment
Fig. 9 is a front view showing a schematic configuration of a prevention fence according to a second embodiment. The prevention fence 10 shown in Fig. 2 includes a plurality of posts 12 each having one end fixed to the staircase S, a plurality of beams 14 extending horizontally between the posts, and a plurality of mounting structures 52 for mounting the beams 14 to the posts 12. The mounting structure 52 according to the second embodiment has the same configuration as the mounting structure 16 of the first embodiment, and differs only in the mounting attitude relative to the posts 12. That is, in order to provide the beams 14 along the staircase S, when the mounting structure 52 is attached to the posts 12, the support member 20 is tilted and fixed with a bolt or the like. This allows the same mounting structure to be used for the prevention fence 10 of Fig. 1 and the prevention fence 50 of Fig. 9.

Third Embodiment
Fig. 10 is a front view showing a schematic configuration of a prevention fence according to a third embodiment. A prevention fence 54 shown in Fig. 10 includes a plurality of posts 12 each having one end fixed to the ground G, a plurality of posts 12 each having one end fixed to a staircase S, a plurality of beams 14 extending horizontally between the posts, and a plurality of mounting structures 16, 52, 56 for mounting the beams 14 to the posts 12. The mounting structures 16, 52, 56 each have the same configuration, and differ only in the orientation when mounted to the posts.

As explained above with regard to the mounting structure 16, the support member 20 can support the holding members 18 on both sides in different positions. Therefore, in the mounting structure 56 according to this embodiment, one holding member 18 holds the beam 14 parallel to the ground G, and the other holding member 18 holds the beam 14 parallel to the slope of the stairs S. In this way, even in a fence in which the beam 14 is tilted partway down, the beam can be attached to the support using one type of mounting structure.

(Fourth embodiment)
Fig. 11 is a front view showing a schematic configuration of a handrail according to a fourth embodiment. Fig. 12(a) is a side view of a bracket fixed to a wall, and Fig. 12(b) is a front view of the bracket fixed to the wall.

The handrail 58 shown in Figure 11 comprises multiple brackets 60 fixed to a wall W, multiple beams 14 arranged horizontally between the brackets, and multiple mounting structures 52 for attaching the beams 14 to the brackets 60. The brackets 60 have a flat plate portion 64 formed with multiple screw holes 62 through which screws can be inserted to fasten the brackets to the wall W, and a hook 66 protruding from the flat plate portion 64. A bolt hole 68 is formed at the tip of the hook 66.

The hook 66 fits into the triangular slit 34 in the support member 20 of the mounting structure 52 and is fixed to the mounting structure 52 by a screw. At this time, by adjusting the position of the mounting structure 52 relative to the hook 66, the bracket 60 and the beam 14 can be attached in a variety of positions. As a result, the handrail 58 can be installed in various locations using the same mounting structure regardless of the position of the handrail 58.

Fifth embodiment
Fig. 13 is a top view showing the schematic configuration of a prevention fence according to a fifth embodiment. Prevention fence 70 shown in Fig. 13 comprises a number of posts 12 each having one end fixed to the ground between a curved road and a sidewalk, a number of beams 14 extending horizontally between the posts, and a number of mounting structures 16, 56 for attaching the beams 14 to the posts 12. The mounting structures 16, 56 each have the same configuration, and differ only in the orientation in which they are attached to the posts.

As explained above with regard to the mounting structure 56, the support member 20 can support the retaining members 18 on both sides in different positions. In the mounting structure 56 according to this embodiment, one retaining member 18 holds the beam 14 in a direction that follows the shape of the road (straight or curved), and the other retaining member 18 also holds the beam 14 in a direction that follows the shape of the road. In this way, even if the safety fence is made up of multiple beams 14 connected together so that they bend along the way to follow the shape of the road, the beams can be attached to the posts using a single mounting structure.

(Mounting structure specifications)
In the mounting structure according to each of the above-mentioned embodiments, the diameter of the cross section perpendicular to the longitudinal direction of the beam is in the range of 20 to 50 mm throughout. The diameter of the support is 20 to 50 mm, and the diameter of the beam is in the range of 20 to 50 mm. The diameter of the spherical recess 24a of the connection part 24 of the support member is in the range of 10 to 20 mm, and the diameter of the spherical protrusion 36 of the holding member 18 is in the range of 10 to 20 mm. The support member is configured to be rotatable by 0±α° (α is a predetermined value, for example, between 20° and 40°) relative to the support or bracket. The holding member is configured to be rotatable by 0±β° (β is a predetermined value, for example, between 10° and 30°) relative to the support member. The holding member is also configured to be rotatable in a direction that combines the horizontal and vertical directions.

Although the present invention has been described above with reference to the above-mentioned embodiments, the present invention is not limited to the above-mentioned embodiments, and suitable combinations or substitutions of the configurations of the embodiments are also included in the present invention. In addition, it is possible to suitably rearrange the combinations and processing order in each embodiment based on the knowledge of a person skilled in the art, and to make modifications such as various design changes to each embodiment, and embodiments to which such modifications have been made are also included in the scope of the present invention.

10 protective fence, 12 support, 14 beam, 16 mounting structure, 18 retaining member, 20 support member, 20a first semi-cylindrical part, 20b second semi-cylindrical part, 21 body, 22 bolt hole, 22a large diameter part, 22b small diameter part, 24 connection part, 24a recess, 25a reference surface, 25b convex surface, 25c, 25d concave surface, 26 body, 28 bolt hole, 30 connection part, 30a recess, 32a reference surface, 32b convex surface, 32c, 32d concave surface, 34 slit, 36 convex portion, 38 disc portion, 38a end surface, 40 semi-cylindrical part, 44 end fitting, 44b Convex part, 58 handrail, 60 bracket, 64 flat part, 66 hook, G ground, W wall.

Claims (9)

A mounting structure for mounting a beam to a support or bracket,
A holding member for holding the beam material;
A support member configured to support the holding member in a plurality of positions,
The support member is configured to be fixed to the side surface of the support column in a plurality of positions without using the holding member,
The holding member, the support member, and the beam member are disposed on the front side or the back side of the support so as not to intersect with the support,
An attachment structure characterized in that the support member is configured to be rotatable through 0±α° (α is a predetermined value equal to or greater than 20°) relative to the support column . 2. The mounting structure according to claim 1, wherein the holding member is configured to be rotatable through 0±β° (β is a predetermined value equal to or greater than 10°) relative to the support member. A mounting structure for mounting a beam to a support or bracket,
A holding member for holding the beam material;
A support member configured to support the holding member in a plurality of positions,
The support member is configured to be fixed to the support or bracket in a plurality of positions without the holding member,
The holding member, the support member, and the beam member are disposed on the front side or the back side of the support so as not to intersect with the support,
The holding members are provided in a pair with the support member in between,
The holding member has a spherical protrusion,
An attachment structure characterized in that the support member has a bolt hole that serves as a fulcrum for the support column, and two recesses on either side of the bolt hole that hold the spherical protrusion, and the bolt hole and the two recesses are aligned in a straight line. A mounting structure for mounting a beam to a support or bracket,
A holding member for holding the beam material;
A support member configured to support the holding member in a plurality of positions,
The support member is configured to be fixed to the support or bracket in a plurality of positions without the holding member,
The holding member, the support member, and the beam member are disposed on the front side or the back side of the support so as not to intersect with the support,
The support member is a first semi-cylindrical part and a second semi-cylindrical part fitted together with a vertical surface therebetween,
An attachment structure characterized in that the first semi-cylindrical part and the second semi-cylindrical part have bolt holes that serve as fulcrums for the support pillar and that are formed so as to penetrate horizontally from the first semi-cylindrical part to the second semi-cylindrical part. 3. The mounting structure according to claim 1, wherein a pair of the holding members are provided with the support member therebetween. 6. The mounting structure according to claim 1, wherein the outer periphery of the holding member and the outer periphery of the supporting member are both circular, and the holding member and the supporting member are linearly connected to the cylindrical beam member. 7. The mounting structure according to claim 1, wherein the holding member and the support member are cast parts manufactured in a mold. The holding member is
A spherical convex portion;
a circular plate portion having one end surface formed in a cone shape and having the protrusion on the end surface;
A semi-cylindrical portion is provided on the opposite side of the convex portion across the disc portion, and the cylindrical beam material is inserted into the semi-cylindrical portion;
3. The mounting structure according to claim 1 , further comprising: The support member is formed by fitting two semi-cylindrical parts having similar shapes together,
9. The mounting structure according to claim 8 , wherein the semi-cylindrical part has hemispherical recesses formed at both ends thereof, into which the protrusions fit.

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