Temporary protective body connecting structure

Abstract

To provide a temporary protective body connecting structure which facilitates connection work on roads having various curvatures, and in particular, can be installed around intersections and can be expected to improve appearance.SOLUTION: A temporary protective body connection structure 1 is provided with connection parts 3, 4 which are provided at both ends of a temporary protective main body 20 and protrude outward in the longitudinal direction of the temporary protective main body. The connection part includes a symmetrical protruding plate 5 having a center plate 51 extending in a width direction T of the temporary protective body main body, a folding line F1 located at both ends of the center plate and extending in a height direction H, a left side plate 52 extending continuously from both ends of the center plate toward the center of the temporary protective body main body while expanding laterally through the folding line, and a right side plate 53. Furthermore, there are provided a first folding plate 7 having a folding line F2 extending in the height direction H connecting the outer surfaces of the left side plates, a second folding plate 8 having a folding line extending in the height direction connecting side surfaces of the right side plates; and a fastening member 9 for fastening and connecting the protruding plate body, the first folding plate, and the second folding plate 8.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a temporary protection structure for connecting temporary protection structures to each other. [Background technology]

[0002] The temporary protective fence of Patent Document 1 connects continuous foundations 4 together with joint bolts 111 and connecting plates 112 .

[0003] Patent Document 2 proposes a guardrail foundation for connecting posts, which is made of a roughly rectangular concrete block with annular connecting parts at the ends. Multiple guardrail foundations can be connected by overlapping the connecting parts with the annular connecting parts of other guardrail foundations and inserting the guardrail posts into the overlapping connecting parts.

[0004] In Patent Document 3, in order to provide a protective fence that is easy to install and remove and has excellent durability, the protective fence 1 includes three concrete blocks 10, four posts 20, guardrail plates 30, restraining devices 40, and connectors 50. The guardrail plates 30 are supported via brackets 60, and adjacent concrete blocks 10 are connected via connectors 50. The posts 20 are inserted into the post holes. By passing the restraining devices 40 through both the posts 20 and the concrete blocks 10, the posts 20 remain connected to the concrete blocks 10.

[0005] Non-Patent Document 1 proposes a guardrail foundation that can create a continuous foundation by combining the ends of two concrete foundations vertically and connecting them with a single bolt. The guardrail foundation and the guardrail support posts are connected by inserting the support posts into holes made in the guardrail foundation, and filling the gaps between the holes and the support posts with sand, mortar, or dry-mix mortar, thereby connecting the guardrail foundation and the support posts. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-282431 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-117238 [Patent Document 3] Japanese Patent Application Publication No. 2023-55361 [Non-patent literature]

[0007] [Non-Patent Document 1] "Free R Continuous Foundation Block" disclosed on the Ibicon Corporation website https: / / www.ibicon.co.jp / pdF / Summary of the Invention [Problem to be solved by the invention]

[0008] However, the temporary protective fence proposed in Patent Document 1 (hereinafter referred to as Patent Document 1) is connected in a straight line using connecting plates, so it is not possible to connect temporary protective fences on roads with various curvatures, and a connecting plate must be prepared for each curvature, making the connecting work complicated and particularly difficult to install around intersections, and furthermore, there is a problem that the appearance cannot be improved.

[0009] In Patent Document 1, the H-beam base is sandwiched between connecting plates and fastened and connected using multiple through bolts while being extended. The guardrail, which serves as the superstructure, is then overlapped and connected using multiple dedicated joint bolts. Conventional H-beam connection points create protrusions on the flange surfaces of the side walls from the connecting plates, bolts, and nuts, raising concerns that the smoothness required in the event of a vehicle collision may be compromised. Furthermore, road improvement work is usually carried out behind the installed temporary protective fences. Due to the narrow road width, workers are constantly required to be careful about contact with the temporary protective fences. Furthermore, construction vehicles and heavy machinery sometimes come into contact with the protruding parts of conventional temporary protective fences, causing damage to both the fences and the construction site.

[0010] Furthermore, in Patent Document 1, when connecting the guardrail, which constitutes the superstructure, adjacent beams must be overlapped and fastened using multiple dedicated joint bolts. However, there are ironclad rules for this overlapping, which require that the beam closest to the vehicle in the direction of travel must be on the front side when overlapping with the next beam (the farther in the direction of travel). This is to prevent the end of the beam from piercing the vehicle when it collides with the guardrail. The overlapping structure and overlapping rules of this guardrail beam complicate pre-installation work, such as installation and removal work, and pre-installation work that is required when changing shoulder and median strip specifications during the preparation stage.

[0011] Specific examples and problems of Patent Document 1 are further explained. The procedure in Patent Document 1 is as follows: 1. Before installation, check and determine whether the beam is for the shoulder or median strip. If the specifications do not match, replace the beam. 2. When loading the transport vehicle, load it in the orientation appropriate for the installation situation. If loaded in the wrong orientation, it will be inverted when lifted by a crane at the installation point, and the long temporary protective fence will have to be rotated on-site, which is still not sufficient safety. 3. When installing all temporary protective fences using guardrail beams, careful attention is required to ensure that the beams are correctly overlapped when connecting them. 4. If the temporary protective fence needs to be replaced due to accident recovery after a vehicle collision, the overlapping beams at the middle of the installation section (not the end points) will be at both ends. The overlapping beams on the front and back sides must be removed and attached using manual labor and a crane, requiring skilled labor. In some cases, the entire fence itself or only the beams are replaced.

[0012] Furthermore, since Patent Document 1 is based on a single-sided beam, there are concerns about protrusions in installation situations where a double-sided beam is required, and the need to install a single-sided beam later and the rules for overlapping the beams create inconvenience.

[0013] Replacement work due to the above-mentioned accident recovery, etc., is particularly notable in the "Free-R Continuous Foundation Block" of Non-Patent Document 1, where adjacent foundation blocks are engaged with each other via uneven upper and lower shapes, making it extremely difficult to replace the foundation block in the middle, regardless of whether a beam is present or not.

[0014] Even in Patent Document 2, although not as severe as in Non-Patent Document 1, the annular connecting portion has a vertical relationship with the adjacent foundation block, and the annular portion is shaped to fit into the adjacent foundation block, so the same thing can be said regardless of whether a beam is present or not.

[0015] The present invention has been made with an eye on these problems, and provides a temporary protective body connecting structure that makes it easier to connect multiple temporary protective bodies on roads of various curvatures, particularly making it easier to install them around intersections, and also improving the appearance, making it easier to store and manage even when applied to conventional single-sided and double-sided specifications, improving the workability of normal installation and replacement work due to accidents, etc., improving smoothness (even in the event of a vehicle collision or against construction vehicles or heavy machinery behind), and allowing flexible installation and repurposing on site. [Means for solving the problem]

[0016] The invention for solving the above problem is a temporary protective body connection structure comprising: a steel connecting portion provided at each end of the temporary protective body and protruding outward in the longitudinal direction of the temporary protective body, each of the connecting portions having a central plate extending in the width direction of the temporary protective body, a bend line located at each end of the central plate and extending in the height direction, and a left side plate and a right side plate that each extend continuously from each end of the central plate, via the bend line, while spreading out to the left and right, toward the center of the temporary protective body, and a protruding plate body with a left-right symmetrical shape; a first bent plate having a bend line extending in the height direction that connects the outer surfaces of the left side plates; a second bent plate having a bend line extending in the height direction that connects the outer surfaces of the right side plates; and fastening members that fasten and connect the protruding plate body, the first bent plate, and the second bent plate.

[0017] This configuration improves the workability of connecting temporary protection structures, allows multiple temporary protection structures to be connected in either a straight or curved line, improves the appearance, and in the event of a vehicle collision with the temporary protection structure, the plates at the connecting parts deform, absorbing external impacts. It is easy to adapt to various curvature radii of roads, and can be installed particularly around intersections.

[0018] It is preferable that the first bent plate and the second bent plate have a plurality of bending angles, and the central plates can be joined together at a plurality of specific angles corresponding to the plurality of bending angles.

[0019] With this configuration, it is easy to accommodate various curvature radii of roads, and it is only necessary to change the types of the first bent plate and the second bent plate to accommodate the curvature, which reduces the number of parts required for the change and makes it easier to connect the temporary protective body.

[0020] Furthermore, it is preferable that the temporary protective body has recesses provided at both ends in the width direction.

[0021] According to this configuration, the internal space of the connecting portion is increased, so that a working space can be secured and the connecting work using the fastening member can be easily performed.

[0022] The connecting portion is preferably installed in an inner region of an extension surface of a longitudinal side surface of the temporary protective body.

[0023] With this configuration, the connecting part does not protrude from the temporary protective body, improving the appearance, and when a vehicle collides with the connecting part, the impact can be distributed between the connecting part and the protective body, reducing damage to both the vehicle and the connecting part.

[0024] It is preferable that the inner walls of each of the connecting portions are provided with fasteners having a U-shaped cross section for fixing the supports of a structure to be constructed on top of the temporary protective body.

[0025] The structures referred to here include privacy nets, solar power generation devices, etc.

[0026] This configuration allows the connecting portion to have the function of fixing the support pole.

[0027] The fixing device is preferably fixed by providing a protrusion on the inner wall of the upper end of the temporary protective body.

[0028] According to this configuration, the protrusions can be provided with a slip-prevention function that prevents the temporary protective bodies from slipping apart when they are stacked on top of each other.

[0029] It is preferable that the temporary protective body is a two-tier structure consisting of a first temporary protective body and a second temporary protective body, the fixing device fixed to the first temporary protective body and the second temporary protective body is a common part, and the fixing device is attached upside down to the first temporary protective body and the second temporary protective body.

[0030] With this configuration, the fixing device can perform two functions on the second temporary protection structure: attaching the support posts and preventing them from shifting when stacked. On the other hand, while the fixing device only secures the support posts on the first temporary protection structure, installing them in the same direction as the second temporary protection structure can sometimes cause the support posts to not reach the fixing points. However, installing them in the opposite direction to the second temporary protection structure can prevent this. This allows existing support posts for privacy nets and other items to be smoothly reused with this temporary protection structure, while also reducing the number of different components.

[0031] It is preferable that the protrusion is detachable from the connecting portion.

[0032] It is expected that protrusions intended to prevent slippage are prone to damage or deformation during operation, but with this configuration, the protrusions can be attached and detached using bolts, etc., making it easy to repair damage or deformation.

[0033] It is preferable that each of the fixing devices includes a fitting member having a fitting hole into which the support post is fitted, and that the protrusion is provided on the fitting member.

[0034] According to this configuration, the structure of the fixing device for the fitting function and the slip prevention function can be simplified.

[0035] When the temporary protective body has a two-tier structure consisting of a first temporary protective body and a second temporary protective body installed on the first temporary protective body, and the first temporary protective body and the second temporary protective body are installed at a specific interval above and below, or the first temporary protective body is installed stacked on top of the second temporary protective body, and the first temporary protective body and the second temporary protective body are installed at the specific interval, it is preferable that the temporary protective body has a covering plate and a second fastening member that conform to the shape of the connecting portion and detachably connects the connecting portion of the first temporary protective body and the connecting portion of the second temporary protective body.

[0036] According to this configuration, by integrally covering the ends of the first temporary protective body and the second temporary protective body with a covering plate, the covering plate absorbs the impact when a vehicle collides, thereby increasing the durability of the connecting portion. [Brief explanation of the drawings]

[0037] [Figure 1] 1 is a plan view of temporary protection bodies connected by the temporary protection body connection structure of the first embodiment of the present invention (the symbols of the structures in the lower part are indicated by dotted lines). FIG. [Figure 2] FIG. 10 is a front view showing the temporary protective body in an erected state. [Figure 3] FIG. [Figure 4] 1(a) is a plan view of the temporary protective body of the first embodiment of the present invention in a collapsed state (the symbols of the structures in the lower part are indicated by dotted lines), and FIG. 1(b) is a front view of the same. [Figure 5] 1 is a plan view of a temporary protection body connection structure according to a first embodiment of the present invention (the lower part near circle A in FIG. 1). [Figure 6] 6(a) is a plan view of the protruding plate, (b) is a side view of the same, (c) is a perspective view seen from the direction of arrow A in FIG. 6(a), and (d) is a development view of the same. [Figure 7]7(a) is a plan view of the first folding plate and the second folding plate, (b) is a side view of the same, (c) is a perspective view seen from the direction of arrow A in FIG. 7(a), and (d) is a development view of the same. [Figure 8] 1(a) is a perspective view of the covering plate, FIG. 1(b) is a front view of the covering plate, FIG. 1(c) is a plan view of the covering plate, and FIG. 1(d) is a side view of the covering plate. [Figure 9] FIG. 10 is a plan view of temporary protection bodies connected by a temporary protection body connection structure of a modified embodiment of the first embodiment of the present invention (the symbols of the structures in the lower part are indicated by dotted lines). [Figure 10] FIG. 10 is a front view showing the temporary protective body in an erected state. [Figure 11] FIG. [Figure 12] 1(a) is a perspective view of the covering plate, FIG. 1(b) is a front view of the covering plate, FIG. 1(c) is a plan view of the covering plate, and FIG. 1(d) is a side view of the covering plate. [Figure 13] FIG. 10 is a plan view of temporary protection bodies connected by a temporary protection body connection structure according to a second embodiment of the present invention. [Figure 14] This is a plan view of the temporary protective body connection structure (the lower part near circle A in Figure 13). [Figure 15] FIG. 10 is a plan view of temporary protection bodies connected by a temporary protection body connection structure according to a third embodiment of the present invention. [Figure 16] This is a plan view of the temporary protective body connection structure (the lower part near circle A in Figure 15). [Figure 17] 17(a) is a plan view of the second folding plate, (b) is a rear view of the same, (c) is a perspective view seen from the direction of arrow A in FIG. 17(a), and (d) is a development view of the same. [Figure 18] 18(a) is a plan view of the first folding plate, (b) is a rear view of the same, (c) is a perspective view seen from the direction of arrow A in FIG. 18(a), and (d) is a development view of the same. [Figure 19] (a) is an oblique view showing the fixing device inside the connecting structure of the temporary protective body of embodiment 4 (when the protective body support pillar of the temporary protective body is collapsed), (b) is a cross-sectional view of the same, and (c) is a cross-sectional view taken along XIXC-XIXC in Figure 19(b). [Figure 20] 1(a) is a plan view showing the mounting bracket of the fixture, (b) is a side view of the same, (c) is a front view of the same, and (d) is an exploded view of the same. [Figure 21] FIG. 10 is a perspective view of a state in which a cover is attached to the connection structure of a temporary protective body in an upright state according to a fourth embodiment of the present invention. [Figure 22] FIG. [Figure 23] 22(a) is a cross-sectional view taken along line XXIIIA-XXIIIA in FIG. 22, (b) is a cross-sectional view taken along line XXIIIB-XXIIIB in FIG. 23(a), and (c) is a cross-sectional view taken along line XXIIIC-XXIIIC in FIG. 23(a). [Figure 24] 10(a) to 10(j) are diagrams showing an outline of modified second temporary protective bodies according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0038] A temporary protective body connecting structure 1 (hereinafter referred to as connecting structure 1) according to a first embodiment of the present invention will be described in detail below with reference to Figures 1 to 8. The connecting structure 1 is a structure for connecting temporary protective bodies 100 to construct a temporary protective fence 500.

[0039] In this embodiment, as shown in FIG. 3 and other figures, the temporary protective structure 100 has a structure in which a first temporary protective structure 2 (hereinafter referred to as the first protective structure 2) and a second temporary protective structure 6 (hereinafter referred to as the second protective structure 6) are connected by protective structure supports 17. By raising the protective structure supports 17, a specific distance can be maintained between the first protective structure 2 and the second protective structure 6, as shown in FIGS. 2 and 3, and by lowering the protective structure supports 17, the second protective structure 6 can be stacked on top of the first protective structure 2, as shown in FIG. 4. The temporary protective structure 100 is fixed to the ground by L-shaped steel beams 900. The temporary protective structure 100 is fixed to the ground by the L-shaped steel beams 900, and the strength of the temporary protective structure 100 can be improved as needed by using anchor pins or anchor bolts in holes in the L-shaped steel beams.

[0040] In this embodiment, as described above, the temporary protective body 100 has a two-tier structure consisting of a first protective body 2 and a second protective body 6, but the connecting structure of the present invention can also be applied to cases where the temporary protective body 100 has a single-tier structure, for example, consisting of only the first protective body 2.

[0041] As shown in Figures 3, 4, etc., the first protective body 2 has a main body 20 and a first connecting structure 14 made of steel. The main body 20 has a horizontal web portion 21 extending in the longitudinal direction N and flange portions 22, 23 connected perpendicularly to the web portion 21, and the web portion 21 and the flange portions 22, 23 define an upper recess 25 and a lower recess 26. The flange portions 22, 23 also form the longitudinal side surfaces of the main body 20. The first connecting structure 14 is provided at both ends of the first protective body 2 and has a first connecting portion 3 and a second connecting portion 4 that protrude outward in the longitudinal direction N.

[0042] The first connecting portion 3 and the second connecting portion 4 are symmetrical with respect to the width direction T and have a similar structure. The second protective body 6 has a structure similar to that of the first protective body 2, and has a main body 60 and a second connecting structure 15 made of steel. The main body 60 has a horizontal web portion 61 extending in the longitudinal direction N and flange portions 62, 63 connected perpendicularly to the web portion 61, and the second connecting structure 15 has a third connecting portion 10 and a fourth connecting portion 11 provided at each end of the second protective body 6 and protruding outward in the longitudinal direction N. The first connecting structure 14 and the second connecting structure 15 constitute the connecting structure 1.

[0043] FIG. 5 is an enlarged view of the first connecting structure 14 (the lower portion near circle A in FIG. 1). As shown in FIG. 5, the first connecting portion 3 and the second connecting portion 4 each have a symmetrical protruding plate body 5 having a central plate 51 extending in the width direction T of the first protective body 2, a folding line F1 (see FIG. 6) located at both ends of the central plate 51 and extending in the height direction H, and a left plate 52 and a right plate 53 extending continuously from both ends of the central plate 51 toward the center of the first protective body 2 via the folding line F1, while expanding to the left side L and the right side R, respectively. Both ends of the protruding plate body 5 are fixed by welding to both ends of the flange portions 22 and 23 of the first protective body 2. The central plates 51 have an internal space P with a specific gap between them, but may also be butted together.

[0044] The first connecting structure 14 further includes a first folded plate 7 having a folding line F2 (see FIG. 7) extending in the height direction H that connects the outer surfaces of the left side plate 52, a second folded plate 8 having a folding line F3 (see FIG. 7) that connects the outer surfaces of the right side plate 53 that also extend in the height direction H, and a fastening member 9 that fastens and connects the protruding plate body 5, the first folded plate 7, and the second folded plate 8. Examples of the fastening member 9 include through holes, bolts, and nuts. The first connecting part 3 and the second connecting part 4 are installed inside the extension surface E of the flange portions 22, 23 of the first protective body 2 (the extension surface of the longitudinal side surface of the main body 20).

[0045] As shown in FIG. 5, the angle α1 formed by the longitudinal direction N of the first protection body 2 and the longitudinal direction N of the adjacent first protection body 2 is 180°, the angle β1 formed by the central plates 51 is 0° (symbols α1 and β1 are omitted in the drawing), the bending angle γ1 of each of the first bent plate 7 and the second bent plate 8 is 120°, and as shown in FIG. 6, the bending angle of the protruding plate body 5 is the supplementary angle β 01 = 30°.

[0046] When an impact force is applied to the first connecting portion 3 and the second connecting portion 4, the plates deform, thereby absorbing the external impact. The first connecting portion 3 and the second connecting portion 4 are installed in the inner region of the extension plane E in the longitudinal direction N of the flange portions 22, 23. With this configuration, the first connecting portion 3 and the second connecting portion 4 do not protrude from the main body 20, improving the appearance, and even when a vehicle collides with the connecting portion, the impact can be distributed between the first connecting portion 3, the second connecting portion 4 and the protective body main body 20, reducing damage to both the vehicle and the connecting portion.

[0047] By providing recesses 24 in the width direction T at both ends of the main body 20 of the first protective body 2, the internal space S of the first connecting part 3 and the second connecting part 4 is increased. With this configuration, the internal space S (see FIG. 5) can be secured, and the connecting work using the fastening members 9 can be facilitated.

[0048] The second protective body 6 is installed on the first protective body 2 via protective body supports 17. The supports 17 rise and fall, allowing the second protective body 6 to move up and down relative to the first protective body 2, forming a two-stage structure. However, the second protective body 6 may have a different structure from the first protective body 2. In this embodiment, the second protective body 6 has a main body 60 similar to the main body 20, and a second connecting structure 15 similar to the first connecting structure 14. The second protective body 6 has a third connecting portion 10 and a fourth connecting portion 11 having structures similar to the first connecting portion 3 and the second connecting portion 4, and the third connecting portion 10 and the fourth connecting portion 11 are connected to form the second connecting structure 15. In addition, recesses 64 are provided in the width direction T at both ends of the main body 60 of the second protective body 6 (see FIG. 4).

[0049] When the first protective body 2 and the second protective body 6 are installed at a specific interval in the height direction H, the connecting structure 1 has a cover plate 12 with multiple through holes and a second fastening member 13 that conforms to the shapes of the first connecting section 3 to the fourth connecting section 11 and separably connects the first connecting section 3 and the third connecting section 10, and the second connecting section 4 and the fourth connecting section 11, which are located at both ends of the temporary protective fence 500. As shown in Figure 8, etc., the cover plate 12 has a deformed U-shaped cross section, and both ends flare out at a specific angle.

[0050] According to this configuration, by integrally covering the ends of the first protective body 2 and the second protective body 6 with the covering plate 12, the covering plate 12 absorbs the impact during a vehicle collision, thereby increasing the durability of the first connecting portion 3 to the fourth connecting portion 11.

[0051] The behavior of the connecting structure 1 etc. when it receives an impact due to a collision of a vehicle or the like will be described.

[0052] When the connecting structure 1 receives an impact due to a collision of a vehicle or the like, the first connecting portion 3 to the fourth connecting portion 11 deform and work together to exert resistance, thereby absorbing the impact, despite the connecting structure 1 having a compact structure.

[0053] 9 to 12, a connecting structure 1' of a modification of the first embodiment is obtained by changing the shape of the covering plate 12 of the first embodiment to a covering plate 12' with an increased protruding internal volume, and has a structure in which the protecting body 100' is connected by the connecting structure 1', with the remaining configuration being the same as that of the first embodiment. The increased internal volume enhances the impact absorption effect.

[0054] 13 and 14, in the second embodiment, temporary protective bodies 200 are installed on a curved road, and the longitudinal direction N of each protective body 200 is connected to adjacent protective bodies 200 to construct a temporary protective fence 600. Configurations that are common to the second embodiment and the first embodiment are numbered in the 200s and are illustrated and explained accordingly, and mainly the different configurations will be explained.

[0055] As shown in FIGS. 13 and 14, the angle α2 formed between the longitudinal direction N of the protective body 200 and the longitudinal direction N of the adjacent protective body 200 is 172° (see FIG. 13), the angle β2 formed between the central plates 251 is 8° (see FIG. 14), and the bending angle γ of the first bent plate 207 is 21 = 112° (see FIG. 14), the bending angle γ of the second bending plate 208 22 =128° (see FIG. 14). The internal space P is substantially triangular.

[0056] The first connecting portion 203 and the second connecting portion 204 are installed on the inside of the extension surface G of the flange portions 222 and 223 of the first protection body 202.

[0057] According to this configuration, the bending angles of the first bending plate 207 and the second bending plate 208 can be varied in multiple ways, making it easy to accommodate various curvature radii of roads. Since it is only necessary to change the type of the first bending plate 207 and the second bending plate 208 to accommodate this curvature, the number of parts required for the change is reduced, making it easier to connect the protective body 200.

[0058] Furthermore, the connecting structure 201 of embodiment 2 improves the workability of connecting the protective body 200, and allows multiple protective bodies 200, 200, 200 to be connected in a curved line. In addition, the first connecting portion 203 and the second connecting portion 204 do not protrude from the temporary protective body main body 220, improving the appearance. In addition, when a vehicle collides with a connecting portion, the impact can be distributed between the first connecting portion 203, the second connecting portion 204 and the protective body main body 220, reducing damage to both the vehicle and the connecting portion. It is easy to accommodate various curvature radii of roads, and it can be installed particularly around intersections.

[0059] 15 to 18, in the third embodiment, temporary protective bodies 300 are installed on a curved road, and multiple protective bodies 300 are connected in the longitudinal direction N to construct a temporary protective fence 700. Configurations that are common to the third embodiment and the first and second embodiments are numbered in the 300s and are illustrated and explained accordingly, and mainly the different configurations will be explained.

[0060] As shown in FIGS. 15 to 18, the angle α3 formed between the longitudinal direction N of the protective body 300 and the longitudinal direction N of the adjacent protective body 300 is 150° (see FIG. 15), the angle β3 formed between the central plates 351 is 30° (see FIG. 16), and the bending angle γ of the first bent plate 307 is 31 =90° (see FIG. 16), the bending angle γ of the second bending plate 308 32 =150° (see FIG. 16). The internal space P is substantially triangular and has a larger volume than that of the second embodiment.

[0061] The first connecting portion 303 and the second connecting portion 304 are installed on the inside of the extension plane J of the flange portions 322 and 323 of the first protection body 302.

[0062] According to this configuration, the first bending plate 307 and the second bending plate 308 have multiple bending angles, making it easy to accommodate various curvature radii of roads. Since it is only necessary to change the type of the first bending plate 307 and the second bending plate 308 to accommodate this curvature, the number of parts required for the change is reduced, making it easier to connect the protective body 300.

[0063] Furthermore, the connecting structure 301 of embodiment 3 improves the workability of connecting the protective body 300, and allows multiple protective bodies 300, 300, 300 to be connected in a curved line. Furthermore, since the first connecting portion 303 and the second connecting portion 304 do not protrude from the temporary protective body main body 320, the appearance is improved. Furthermore, when a vehicle collides with a connecting portion, the impact can be distributed between the first connecting portion 303, the second connecting portion 304, and the protective body main body 320, reducing damage to both the vehicle and the connecting portion. It is easy to accommodate various curvature radii of roads, and installation is particularly possible around intersections.

[0064] 19 to 23, the connecting structure 401 of the fourth embodiment is provided with fasteners 425, 426, 435, and 436 on the inner walls of each of the first connecting portion 403, the second connecting portion 404, the third connecting portion 410, and the fourth connecting portion 411. The fasteners 425, 426, 435, and 436 are members with a U-shaped cross section that fasten supports 1001 for a structure 1000 to be constructed on top of the temporary protective structure 400, such as a mesh-like structure for use as a screen, various signs and delineators, solar power generation equipment, etc.

[0065] The temporary protective body 400 is composed of two layers, a first protective body 402 and a second protective body 406, and as shown in Figure 19 (in Figure 19, the protective body 400 is in a laid-down state like the temporary protective body 100 in Figure 4), the fixing devices 425, 426, 435, 436 respectively have protrusions 425a, 426a, 435a, 436a which have a slip-prevention function to prevent the temporary protective bodies 400 from shifting when stacked in multiple layers, and fitting members 425c, 426c, 435c, 436c which have fitting holes 425b, 426b, 435b, 436b into which the support posts 1001 are fitted. Inside the fitting members 425c, 426c, 435c, 436c, mounting fixtures 425d, 426d, 435d, 436d, which have a U-shaped cross section and fasten the members with fastening members 440, are welded and fixed to the inner walls of the first connecting portion 403, the second connecting portion 404, the third connecting portion 410, and the fourth connecting portion 411.

[0066] According to this configuration, the fasteners 425, 426, 435, and 436 can provide the first connecting portion 403 to the fourth connecting portion 411 with the function of fixing the support 1001 of the structure 1000.

[0067] The fixing members 435 and 436 are fixed to the inner walls of the upper ends of the first protection body 402 and the second protection body 406, respectively. This configuration allows the fixing members 425 and 435 to have a function of preventing the temporary protection body from slipping.

[0068] Furthermore, the fixtures 425, 426, 435, and 436 are common parts, and the fixtures 425 and 435, and the fixtures 426 and 436 are attached upside down (see FIGS. 19(a) and 19(b)).

[0069] According to this configuration, the fixing devices 435, 436 attached to the second protection body 406 side not only function to fix the support 1001, but also function to prevent the positional relationship or misalignment of the temporary protection bodies 400 stacked in two or three layers in the longitudinal direction N or width direction T when the temporary protection bodies 400 with the protection body support 417 in a collapsed state are stacked for storage and transportation. The projections 435a, 436a, which are intended to prevent slippage, are designed to be replaceable with fastening members 440, assuming that they are susceptible to damage or deformation during operation. On the other hand, the fixing devices 425, 426 attached to the first protection body 402 side only function to fix the support 1001. However, if they were attached in the same orientation as the first protection body 406 side, the support 1001 may not reach the fixing point (insertion hole), which is a problem that can occur. To prevent this, they are attached in the opposite direction.

[0070] As described above, by using the fixing devices as common parts and by attaching them upside down on the first protective body 402 side and the second protective body 406 side, existing supports 1001 such as privacy nets of different lengths can be smoothly reused for this temporary protective body 400, and the number of types of parts can be reduced.

[0071] When attaching the support 1001, the nuts of the fastening members 440 are loosened and the fastening members 440 are inserted into the fitting holes 425b, 426b, 435b, and 436b, and the previously loosened nuts are tightened to fix the support 1001. At this time, as shown in Figure 23(a), the horizontal member 1002, which is the horizontal tube of the structure 1000, may be supported by the fixing devices 435 and 436.

[0072] Since the fixing devices 425, 426, 435, 436 can be used to attach various sign posts and solar panels in addition to privacy nets, it is preferable that the size of the fixing devices 425, 426, 435, 436 be such that not only sign posts (usually Φ60.5 mm or more) but also, for example, single-pipe pipes (Φ48.6 mm) can be inserted.

[0073] An overview of modified forms of the second protection body 6 (206, 306, 406) will be explained with reference to Figures 24(a) to (j). For example, in Figure 24(a), the second protection body 6-1 is a horizontal rectangular tube. In Figure 24(b), the second protection body 6-2 is a horizontal rectangular tube with a smaller diameter than in (a). In Figure 24(c), the second protection body 6-3 is a shape in which two horizontal rectangular tubes are installed in the width direction T. In Figure 24(d), the second protection body 6-4 is a horizontal circular tube. In Figure 24(e), the second protection body 6-5 is a shape in which multiple horizontal circular tubes are installed in the width direction T and the height direction H. In Figure 24(f), the second protection body 6-6 is a shape in which the second protection body is a horizontal channel steel that opens upward. In Figure 24(g), the second protection body 6-7 is a shape in which the second protection body is a horizontal channel steel that opens downward. In Figure 24(h), the second protection body 6-8 has two horizontally opening channel steels installed in the width direction T. In Figure 24(i), the second protection body 6-9 has a smaller diameter than in (h). In Figure 24(j), the second protection body 6-10 is longer vertically than in (i).

[0074] This embodiment is merely an example, and it goes without saying that modifications can be made without departing from the technical spirit of the present invention. For example, instead of the second protective body 6 in the embodiment, a structure having an appropriate protective function, such as a channel steel member or a tubular member, can be used. In the embodiment, the connecting structure 1 is provided on both the first and second protective bodies 2, 6, but the connecting structure 1 can be provided only on the first protective body 2, and another appropriate connecting structure can be used for the second protective body 6. In the embodiment, the structure is such that by raising the protective body support 17, a specific distance can be maintained between the first protective body 2 and the second protective body 6, and by lowering the protective body support 17, the second protective body 6 can be stacked on top of the first protective body 2.However, instead of this, a vertical lifting structure can be used in which the protective body support 17 is a fixed structure and the second protective body 6 is provided with a lifting structure that allows it to rise and fall vertically relative to the first protective body 2, and by raising the second protective body 6 vertically along the protective body support 17, it can be installed in a state where a specific distance is maintained, and by lowering the second protective body 6, it can be stacked on top of the first protective body 2 or transported or stored in a state where the distance is smaller than the specific distance. [Industrial Applicability]

[0075] The connecting structure 1 according to the present invention can be used as a connecting structure for temporary protective structures installed on roads, and can also be applied to connecting structures for permanent protective fences. Because it can be used in such a wide range of applications, it has great industrial applicability. [Explanation of symbols]

[0076] 1, 201, 301, 401 Temporary protective body connection structure (connection structure) 2, 202, 302, 402 First temporary protective structure (First protective structure) 3, 203, 303, 403 1st connection part 4, 204, 304, 404 2nd connection part 5, 205, 305, 405 Projecting plate body 6, 206, 306, 406 Second temporary protective structure (Second protective structure) 7, 207, 307, 407 1st bending plate 8, 208, 308, 408 2nd bending plate 9, 209, 309, 409 Fastening members 10, 210, 310, 410 3rd connection part 11, 211, 311, 411 4th connection part 12, 212, 312, 412 Covering plate 13, 213, 313, 413 Second fastening member 14, 214, 314, 414 1st connection structure 15, 215, 315, 415 2nd connection structure 17, 217, 317, 417 Protector support 20, 220, 320, 420 body 21, 221, 321, 421 Web Section 22, 222, 322, 422 flange 23, 223, 323, 423 flange 24, 224, 324, 424 recesses 25, 225, 325, 425 Upper recess 26, 226, 326, 426 Lower recess 51, 251, 351, 451 center plate 52, 252, 352, 452 Left side plate 53, 253, 353, 453 Right side plate 60, 260, 360, 460 body 61, 261, 361, 461 Web Section 62, 262, 362, 462 flange 63, 263, 363, 463 flange 64, 264, 364, 464 recesses 100, 200, 300, 400 Temporary protective body (protective body) 440 Fastening members 425,426,435,436 Fixtures 425a, 426a, 435a, 436a Protrusion (anti-slip part) 425b,426b,435b,436b fitting hole 425c, 426c, 435c, 436c Fittings 425d, 426d, 435d, 436d Mounting fixtures 500, 600, 700 Temporary protective fence 900 L-shaped steel 1000 structures 1001 Post 1002 Horizontal member

Claims

1. a steel connecting portion provided at each end of the temporary protective body and protruding outward in the longitudinal direction of the temporary protective body; The connecting portions each include: a central plate extending in the width direction of the temporary protective body, bending lines located at both ends of the central plate and extending in the height direction, and a left side plate and a right side plate that extend continuously from both ends of the central plate via the bending lines while widening to the left and right toward the center of the temporary protective body, and a protruding plate body having a left-right symmetrical shape; Furthermore, a first bent plate having a bend line extending in a height direction and connecting outer surfaces of the left side plates; a second bent plate having a bend line extending in the height direction and connecting outer surfaces of the right side plates; a fastening member for fastening and connecting the protruding plate, the first bent plate, and the second bent plate; A temporary protective body connection structure comprising:

2. 2. The temporary protective body connection structure according to claim 1, wherein the bending angles of the first bent plate and the second bent plate are set to a plurality of types, and the central plates are joined at a plurality of specific angles corresponding to the plurality of types.

3. The temporary protection body connecting structure according to claim 1 , further comprising recesses provided in the width direction at both ends of the temporary protection body.

4. The temporary protection structure according to claim 1 , wherein the connecting portion is installed in an inner region of an extension surface of a longitudinal side surface of the temporary protection body.

5. 2. A temporary protective body connection structure as described in claim 1, wherein the inner walls of each connecting section are provided with fasteners having a U-shaped or C-shaped cross section for fixing supports of a structure to be constructed on top of the temporary protective body.

6. 6. The temporary protection structure according to claim 5, wherein the fixing device is fixed by providing a protrusion on the inner wall of the upper end of the temporary protection body.

7. The temporary protective body connection structure described in claim 6, wherein the temporary protective body is a two-stage structure consisting of a first temporary protective body and a second temporary protective body, the fixing device fixed to the first temporary protective body and the second temporary protective body is a common part, and the fixing device is attached upside down to the first temporary protective body and the second temporary protective body.

8. 7. The temporary protective body connecting structure according to claim 6, wherein the protrusions are detachable from the connecting parts.

9. 9. The temporary protective body connecting structure according to claim 8, wherein each of the fixing devices comprises a fitting member having a fitting hole into which the support post is fitted, and the protrusion is provided on the fitting member.

10. the temporary protective body has a two-stage structure of a first temporary protective body and a second temporary protective body installed on the first temporary protective body, The first temporary protective body and the second temporary protective body are installed vertically at a specific interval, or the first temporary protective body is installed stacked on top of the second temporary protective body, A temporary protective body connection structure as described in claim 1, which has a covering plate and a second fastening member that conform to the shape of the connecting portion when the first temporary protective body and the second temporary protective body are installed at the specific interval and detachably connect the connecting portion of the first temporary protective body and the connecting portion of the second temporary protective body.

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