Safety fence and safety fence assembly

Abstract

To provide a technology that can further effectively suppress people from traversing or entering.SOLUTION: A safety fence assembly 100 includes multiple safety fences 1. Each of the multiple safety fences 1 includes multiple pillar bodies 14 made of an elastic material, and a beam part 20 supported by the multiple pillar bodies 14 so that both ends protrude in the longitudinal direction. The size G of the gap between the beam parts 20 of adjacent safety fences 1 is equal to or smaller than a predetermined value.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a safety fence and a safety fence assembly. [Background technology]

[0002] Patent Document 1 discloses a safety fence that is installed between roadways to prevent pedestrians from crossing, and that includes a pair of left and right pillars and a beam that connects the pillars. The safety fence in Patent Document 1 is configured such that the pillars are deformed from an upright position by an external force and are restored to their original upright position when the external force is released, so that it can absorb and mitigate the impact when a vehicle or the like collides with it. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-336310 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the safety fence of Patent Document 1, because the bases interfere with each other, multiple safety fences cannot be arranged closely together to prevent people from passing between them. Therefore, the safety fence of Patent Document 1 has room for improvement in terms of preventing people from crossing or entering.

[0005] The present invention has been made in light of the above-mentioned circumstances, and one exemplary purpose of an embodiment of the present invention is to provide a technique that can more effectively prevent people from crossing or entering. [Means for solving the problem]

[0006] In order to solve the above problems, a safety fence assembly according to one embodiment of the present invention is a safety fence assembly including a plurality of safety fences, each of which includes a plurality of post bodies formed of an elastic material, and a beam portion supported by the plurality of post bodies so that both ends protrude in the longitudinal direction, and the size of the gap between the beam portions of adjacent safety fences is equal to or smaller than a predetermined value.

[0007] Another aspect of the present invention is also a safety fence assembly. This safety fence assembly includes a plurality of safety fences, each of which includes a plurality of post bodies formed of an elastic material and a beam portion supported by the plurality of post bodies so that both ends protrude in the longitudinal direction. The plurality of safety fences are arranged so that the beam portions are lined up without any gaps.

[0008] Yet another aspect of the present invention is a safety fence comprising a plurality of post bodies formed of an elastic material, and a beam portion supported by the plurality of post bodies so that both ends protrude in the longitudinal direction. Effect of the Invention

[0009] According to the present invention, it is possible to provide a technique that can more effectively prevent people from crossing or entering. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a front view of the safety fence according to the embodiment. [Diagram 2] FIG. 2 is a front view of the safety fence assembly according to the embodiment. [Diagram 3] FIG. 2 is a plan view of a safety fence assembly according to an embodiment of the present invention. [Figure 4] FIG. 2 is a plan view of a safety fence assembly according to an embodiment of the present invention. [Diagram 5] FIG. 11 is a plan view of a safety fence assembly according to a modified example. [Figure 6] FIG. 11 is a front view of a safety fence according to a modified example. [Figure 7] FIG. 11 is a front view of a safety fence according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present invention will be described below based on preferred embodiments with reference to the drawings. The embodiments are illustrative and do not limit the invention, and all features and combinations described in the embodiments are not necessarily essential to the invention. The same or equivalent components, parts, and processes shown in each drawing are given the same reference numerals, and duplicated descriptions are omitted as appropriate.

[0012] Please refer to Figure 1. The safety fence 1 is installed on a mounting surface S such as the ground (for example, a road). The safety fence 1 can be used alone or in combination with multiple fences to form an assembly, for example, to prevent people from crossing a specified area such as a road, or to prevent people from entering a specified area at a construction site, factory, etc.

[0013] The safety fence 1 comprises two pillars 10 and a beam 20 supported by the two pillars 10. Note that, as described later in a modified example, the safety fence 1 may comprise three or more pillars 10, and the beam 20 may be supported by the three or more pillars 10. In other words, the safety fence 1 comprises a plurality of pillars 10. Note that, as described later in a modified example, the safety fence 1 may comprise two or more beams 20, and the two or more beams 20 may be supported by the two pillars 10.

[0014] In the following, we will use as an example a case where the installation surface S is a horizontal plane, but in reality, the portions of the installation surface S on which the two pillar sections 10 are installed may have at least one inclined, at least one undulating, or different heights.

[0015] The two pillars 10 are installed on an installation surface S with a predetermined interval (for example, 1 m) between them. Each of the two pillars 10 includes a base 12 and a pillar body 14.

[0016] The base 12 is placed on the installation surface S. The specific shape of the base 12 is not particularly limited. For example, the base 12 may have a truncated cone shape. The base 12 is typically wider than the column body 14 in a plan view and encompasses the column body 14. The material of the base 12 is not particularly limited. For example, the base 12 may be formed of an elastic material such as an elastomer, for example, polyurethane.

[0017] The bar body 14 has an external shape of a long and thin cylinder. However, the bar body 14 may have an external shape of an elliptical cylinder, a rectangular cylinder, or another external shape.

[0018] The column body 14 is supported by the base 12 so as to extend perpendicular to the installation surface S. The column body 14 is inserted into a hole 12b formed in the upper surface 12a of the base 12 and fixed therein by a fastener or contact.

[0019] The column body 14 is formed to be hollow, though this is not limited thereto, that is, the column body 14 is formed in a cylindrical shape.

[0020] As shown in the figure, the column body 14 may be provided with a reflective member 30 that reflects light. The reflective member 30 may be, for example, a reflective sheet wrapped around the column body 14, or a reflective paint applied to the column body 14.

[0021] The base 12 may be fixed to the installation surface S so that the two pillars 10 do not move and do not fall over. For example, the base 12 may be fixed to an anchor buried in the installation surface S with a fastener such as a bolt. Alternatively, a weight may be placed on the base 12 to make the two pillars 10 less likely to move and to fall over.

[0022] The beam portion 20 has an external shape of a long and thin cylinder. Note that the beam portion 20 may have an external shape of an elliptical cylinder, a rectangular cylinder, or another external shape.

[0023] The beam portion 20 is supported by the two pillar portions 10 so as to extend parallel to the installation surface S. In particular, the beam portion 20 is supported by each of the two pillar portions 10 at two locations spaced apart in the longitudinal direction D, and at positions avoiding the end portions 20a in the longitudinal direction D. In other words, the beam portion 20 is supported by the two pillar portions 10 so that both end portions 20a in the longitudinal direction D protrude from the pillar portion main body 14.

[0024] In this embodiment, the beam portion 20 is inserted into an insertion hole 14a that penetrates the column portion main body 14 in a direction parallel to the installation surface S, and is supported by the insertion hole 14a.

[0025] The beam portion 20 is fixed to the column body 14. The beam portion 20 is preferably press-fitted into the insertion hole 14a, and is fixed to the column body 14 by this press-fitting alone. In this case, assembly is easy and installation can be performed in a short time. Furthermore, when a vehicle or the like collides with the beam portion 20, that is, when a large external force is applied to the beam portion 20, the beam portion 20 can shift relative to the column body 14 or come off from the column body 14. This makes it possible to absorb and mitigate the impact when a vehicle or the like collides with the beam portion 20.

[0026] The beam portion 20 is formed to be hollow, though this is not limited thereto. That is, the beam portion 20 is formed to be cylindrical.

[0027] As shown in the figure, the beam portion 20 may be provided with a reflective member 32 that reflects light. The reflective member 32 may be, for example, a reflective sheet wrapped around the beam portion 20, or a reflective paint applied to the beam portion 20. The reflective member 32 may be formed so that the outer diameter is larger than the inner diameter of the insertion hole 14a. This allows the reflective member 32 to function as a retainer for the beam portion 20.

[0028] The column body 14 and the beam 20 have flexibility that allows them to be deformed and restored. Specifically, for example, the column body 14 and the beam 20 have flexibility that allows them to be deformed even when subjected to an external force such as an impact of a person touching them, and have the restoring ability to return to their original shape when the external force is removed after deformation due to the external force. The original shape here is not limited to a shape that is completely the same as before deformation due to the external force, but also includes a shape that is approximately the same as before deformation due to the external force. The column body 14 and the beam 20 are formed of an elastic material such as an elastomer having such flexibility, for example, polyurethane. The column body 14 and the beam 20 may be formed of other elastic materials having such flexibility, i.e., other resin materials, rubber, etc.

[0029] Next, a safety fence assembly 100 composed of a plurality of safety fences 1 will be described.

[0030] Please refer to Fig. 2. The safety fence assembly 100 includes a plurality of safety fences 1. The plurality of safety fences 1 are arranged such that their beam portions 20 form a continuous beam portion.

[0031] The multiple safety fences 1 are arranged so that the size of the gap G between the beam portions 20 of adjacent safety fences 1 is equal to or smaller than a predetermined value G0. In other words, the multiple safety fences 1 are arranged so that the size of the gap G between the beam portions 20 of adjacent safety fences 1 is relatively small. The size of the gap G between the beam portions 20 is defined as the shortest distance between the ends 20a of the beam portions 20.

[0032] The predetermined value G0 is a size that determines that a person looking at the safety fence assembly 100 will not pass between the beams 20 of adjacent safety fences 1. The predetermined value G0 may be determined based on the standard body type of the country in which the safety fence assembly 100 is installed, for example, the standard body type of an adult male. The predetermined value G0 may be a value less than half the thickness around the waist or stomach of a standard body type, and may be, for example, 10 cm.

[0033] Preferably, the beams 20 of each of the multiple safety fences 1 protrude outward beyond the bases 12 of the two pillars 10 in the longitudinal direction D. In this case, the bases 12 of adjacent safety fences 1 do not interfere with each other, so the size G of the gap between the beams 20 can be reduced.

[0034] The multiple safety fences 1 may be arranged so that their beam portions 20 are lined up without any gaps. In other words, the multiple safety fences 1 may be arranged so that the size G of the gap between the beam portions 20 of adjacent safety fences 1 is substantially zero. Note that "the beam portions 20 are lined up without any gaps" means that they are lined up with as few gaps as possible, and therefore includes not only a state in which there is absolutely no gap between the ends 20a of the beam portions 20 of adjacent safety fences 1, i.e., a state in which the ends 20a of the beam portions 20 of adjacent safety fences 1 are in contact with each other, but also a state in which an unavoidable gap occurs between the ends 20a of the beam portions 20 of adjacent safety fences 1 due to, for example, assembly errors or assembly accuracy.

[0035] The amount of protrusion La of the beam portion 20 protruding from the column body 14 may have a relationship of La = 1 / 2 × Lb with the distance Lb between the two column bodies 14. In this case, when multiple safety fences 1 are arranged so that the beam portions 20 are lined up without gaps, the column bodies 14 are lined up at equal intervals, which looks good.

[0036] Please refer to FIG. 3. In FIG. 3, the base 12 of the column portion 10 is omitted. In this example, the multiple safety fences 1 of the safety fence assembly 100 are installed in the center of the roadway 6 along the extension direction of the roadway 6. In this example, the multiple safety fences 1 are arranged so that the beam portions 20 are lined up without any gaps. The multiple safety fences 1 may be arranged so that the size G of the gap between the beam portions 20 of adjacent safety fences 1 is equal to or smaller than a predetermined value G0. In any case, a pedestrian who sees the safety fence assembly 100 judges that he cannot pass between the beam portions 20 of the adjacent safety fences 1, that is, he cannot cross the roadway 6 unless he straddles but passes under the beam portions 20. Therefore, the pedestrian is motivated to refrain from crossing.

[0037] Please refer to FIG. 4. In FIG. 4, the bases 12 of the pillars 10 are omitted. In this example, the multiple safety fences 1 of the safety fence assembly 100 are installed to surround a predetermined area 8. In this example, the safety fences 1 are arranged so that the size of the gap G between the beams 20 of adjacent safety fences 1 is equal to or less than a predetermined value G0. Note that the multiple safety fences 1 may be arranged so that the beams 20 are lined up without gaps. In any case, a person who sees the safety fence assembly 100 will determine that he or she cannot pass between the beams 20 of the adjacent safety fences 1, that is, that he or she cannot enter the area 8 unless he or she straddles but dives under the beams 20. Therefore, the person will be motivated to refrain from entering the area 8.

[0038] Next, the effects of the embodiment will be described. According to this embodiment, the beams 20 of the multiple safety fences 1 of the safety fence assembly 100 are arranged so that the size G of the gap between the beams 20 of the adjacent safety fences 1 is equal to or smaller than a predetermined value G0. The predetermined value G0 is a size that determines that it is impossible to pass between the beams of the adjacent safety fences. The beams 20 of the multiple safety fences 1 may be arranged so that they are lined up without gaps. In these cases, since it is impossible to cross or enter beyond the safety fence assembly 100 unless one straddles but passes under the beams 20, a person who sees the safety fence assembly 100 will be motivated to refrain from crossing or entering, and this can deter that person from crossing or entering.

[0039] According to this embodiment, the pillar bodies 14 and beams 20 of the multiple safety fences 1 of the safety fence assembly 100 have flexibility that allows them to deform reversibly, so that if a vehicle or the like collides with the safety fence assembly 100, the impact can be absorbed and mitigated, and damage to the vehicle or the like can be reduced. Therefore, a safety fence assembly 100 that can be installed anywhere can be provided. Also, according to this embodiment, the pillar bodies 14 and beams 20 are formed from polyurethane, for example. That is, the beams 20 are relatively lightweight. Therefore, it is possible to prevent the pillar bodies 14 that support the beams 20 from being deformed by the weight of the beams 20.

[0040] If both ends of the beam 20 are bent due to aging or the like, the appearance of the safety fence 1 or the safety fence assembly 100 will deteriorate. Furthermore, in the safety fence assembly 100, if both ends of the beam 20 are bent, a gap will be formed between adjacent beams 20, or the gap will become larger. In contrast, in this embodiment, the beam 20 is supported by two, i.e., multiple, pillars 10. In this case, compared to when a beam 20 of the same length is supported by a single pillar 10, the amount by which the beam 20 protrudes outward from the pillar 10 is shorter, and therefore both ends of the beam 20 are less likely to bend compared to when supported by a single pillar 10. Therefore, in this embodiment, the above-mentioned problems caused by bending of both ends of the beam 20 are less likely to occur.

[0041] The present invention has been described above based on an embodiment. This embodiment is merely an example, and it will be understood by those skilled in the art that various modifications are possible in the combination of each component and each processing step, and that such modifications are also within the scope of the present invention. Such modifications will be described below.

[0042] (Variation 1) Please refer to Fig. 5. The safety fence assembly 100 may include at least one connecting member 34 that connects adjacent beam portions 20. In this case, the beam portions 20 of the multiple safety fences 1 are visually recognized as a continuous, continuous beam portion. Therefore, a person who sees the safety fence assembly 100 can more reliably determine that it is not possible to pass between the beam portions 20 of adjacent safety fences 1.

[0043] The specific shape of the connecting member 34 is not particularly limited. The connecting member 34 may be formed, for example, in a tubular shape, such as a cylindrical shape, surrounding the beam portion 20 as shown in the figure, or may be formed so that the cross section perpendicular to the longitudinal direction is C-shaped. In these cases, the end of the beam portion 20 is hidden, so that a safety fence assembly 100 with a good appearance can be realized.

[0044] The connecting member 34 may be flexible. In this case, adjacent safety fences 1 can be arranged so that the longitudinal directions of adjacent beam portions 20 intersect as shown in the figure.

[0045] The connecting member 34 may further have flexibility that allows it to be deformed in a restorable manner, similar to the column body 14 and the beam 20. The connecting member 34 may be made of an elastic material such as an elastomer having such flexibility, for example, polyurethane. This makes it possible to absorb and mitigate the impact when a vehicle or the like collides with the connecting member 34, thereby suppressing damage to the vehicle or the like.

[0046] The connecting member 34 may also serve as a reflective member that reflects light. For example, the connecting member 34 may itself have a reflective performance that reflects light, such as by containing a reflective material that reflects light. The connecting member 34 may also be a member in which a reflective sheet is wrapped around a connecting member main body that does not have reflective performance, or a member in which a reflective paint is applied to a connecting member main body that does not have reflective performance.

[0047] (Variation 2) In the embodiment and the above-mentioned modified example, the safety fence 1 is described as having two pillars 10, but this is not limiting, and the safety fence 1 may have three or more pillars 10. In other words, the safety fence 1 may have a plurality of pillars 10, and the beams 20 may be supported by the plurality of pillars 10.

[0048] Further, in the embodiment and the above-mentioned modified examples, the safety fence 1 is described as having one beam portion 20, but this is not limited thereto, and the safety fence 1 may be provided with two or more beam portions 20.

[0049] Please refer to FIG. 6. In this example, the safety fence 1 includes three pillars 10 and two beams 20. The three pillars 10 are installed so that the pillar body 14 extends perpendicularly to the installation surface S. The three pillars 10 are aligned in a straight line on the installation surface S. The three pillars 10 may be installed at equal intervals, but this is not limited to this. The two beams 20 are supported by the three pillars 10 with an interval between them in the vertical direction. The two beams 20 are supported by the three pillars 10 so that both end portions 20a in the longitudinal direction D protrude from the pillar bodies 14 at both ends.

[0050] (Variation 3) Please refer to Fig. 7. In the embodiment and the above-mentioned modified example, the case where the beam portion 20 is inserted into the insertion hole 14a formed in the column body 14 has been described, but the present invention is not limited to this. Two holes 20b may be formed in the beam portion 20, and the column body 14 may be inserted into the holes 20b. The holes 20b may be through holes as shown in the figure, or may be non-through holes. In this modified example, the beam portion 20 is also supported by the two column portions 10 such that both ends 20a in the longitudinal direction D protrude from the column body 14.

[0051] The above-described embodiment and modifications can be generalized to obtain the following aspects.

[0052] [Aspect 1] A safety fence assembly including a plurality of safety fences, Each of the plurality of safety fences includes: a plurality of post bodies formed from a resilient material; A beam portion supported by the plurality of column main bodies so that both ends protrude in the longitudinal direction; Including, A safety fence assembly in which the size of the gap between the beams of adjacent safety fences is equal to or smaller than a specified value.

[0053] [Aspect 2] A safety fence assembly according to embodiment 1, wherein the predetermined value is a size that determines that it is impossible to pass between the beams of adjacent safety fences.

[0054] [Aspect 3] The safety fence assembly according to embodiment 1, wherein the predetermined value is determined based on the body thickness of a standard build.

[0055] [Aspect 4] 2. The safety fence assembly of claim 1, wherein the predetermined value is 10 cm.

[0056] [Aspect 5] A safety fence assembly including a plurality of safety fences, Each of the plurality of safety fences includes: a plurality of post bodies formed from a resilient material; A beam portion supported by the plurality of column main bodies so that both ends protrude in the longitudinal direction; Including, The plurality of safety fences form a safety fence assembly in which the beam portions are arranged side by side without any gaps.

[0057] [Aspect 6] A safety fence assembly described in any one of aspects 1 to 5, wherein each of the multiple safety fences is fixed to the multiple pillar bodies by simply pressing the beam portion into an insertion hole that passes through each of the multiple pillar bodies.

[0058] [Aspect 7] The safety fence assembly according to any one of embodiments 1 to 5, further comprising at least one connecting member connecting the beam portions of adjacent safety fences.

[0059] [Aspect 8] The safety fence assembly according to embodiment 7, wherein the at least one connecting member also functions as a reflective member that reflects light.

[0060] [Aspect 9] A plurality of column bodies; A beam portion supported by the plurality of column main bodies so that both ends protrude in the longitudinal direction; A safety fence equipped with

[0061] [Aspect 10] The safety fence according to aspect 9, wherein the beam portion is fixed to the plurality of column bodies only by being pressed into a through hole passing through each of the plurality of column bodies. [Explanation of symbols]

[0062] 1 safety fence, 10 pillar portion, 14 pillar portion main body, 14a insertion hole, 20 beam portion, 34 connecting member, 100 safety fence assembly.

Claims

1. A safety fence assembly including a plurality of safety fences, Each of the plurality of safety fences includes: a plurality of post bodies formed from a resilient material; A beam portion supported by the plurality of column main bodies so that both ends protrude in the longitudinal direction; Including, A safety fence assembly in which the size of the gap between the beams of adjacent safety fences is equal to or smaller than a specified value.

2. 2. A safety fence assembly as claimed in claim 1, wherein the predetermined value is a size that determines that it is impossible to pass between the beams of adjacent safety fences.

3. The safety fence assembly according to claim 1 , wherein the predetermined value is determined based on the thickness of a standard body type.

4. 2. The safety fence assembly according to claim 1, wherein the predetermined value is 10 cm.

5. A safety fence assembly including a plurality of safety fences, Each of the plurality of safety fences includes: a plurality of post bodies formed from a resilient material; A beam portion supported by the plurality of column main bodies so that both ends protrude in the longitudinal direction; Including, The plurality of safety fences form a safety fence assembly in which the beam portions are arranged side by side without any gaps.

6. A safety fence assembly as described in any one of claims 1 to 5, wherein each of the multiple safety fences is fixed to the multiple pillar bodies by simply pressing the beam portion into an insertion hole passing through each of the multiple pillar bodies.

7. A safety fence assembly according to any one of claims 1 to 5, further comprising at least one connecting member connecting the beam portions of adjacent safety fences.

8. The safety fence assembly according to claim 7 , wherein the at least one connecting member also functions as a reflective member that reflects light.

9. a plurality of post bodies formed from a resilient material; A beam portion supported by the plurality of column main bodies so that both ends protrude in the longitudinal direction; A safety fence equipped with

10. The safety fence according to claim 9 , wherein the beam portion is fixed to the plurality of column bodies only by being press-fitted into through holes passing through each of the plurality of column bodies.

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