JP2022186551A - Temporary protective fence and temporary protective fence coupling body - Google Patents

Abstract

To provide a temporary protective fence which is installed on the road surface and prevents entry of a vehicle to a restricted area and can be installed at a predetermined position in a short time, and a temporary protective fence coupling body obtained by coupling a plurality of temporary protective fences.SOLUTION: A temporary protective fence comprises a body part 2 which has a predetermined length in the longitudinal direction and is installed on the road surface, a coupling mechanism 4 which is provided at both edges on the body part in the longitudinal direction and is coupled with the body part of another temporary protective fence detachably, and a caster 3 which is provided so as to be movable in the vertical direction with respect to the body part. The caster 3 is operable in a state where the caster moves upward from the lower end of the body part 2 and the body part comes into contact with the road surface and is supported, and a state where the caster protrudes from the lower end of the body part and the body part separates from the road surface and is supported by the caster.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a temporary protective fence and a temporary protective fence assembly that is arranged at the boundary of an area to restrict entry of vehicles and the like in roads and work areas and is installed to protect the restricted area.

When restricting lanes for construction work on roads in service, temporary protective fences are installed to separate the lanes to be used for driving from the restricted lanes in order to safely carry out work in the restricted lanes. Temporary protection fences are also sometimes used in work areas where construction work or the like is carried out to separate areas where vehicle entry is restricted and areas through which vehicles pass.
As such a temporary protective fence, those described in Patent Document 1 or Patent Document 2, for example, are known.

The temporary protective fence described in Patent Literature 1 is based on H-shaped steel, and a guardrail is attached to a pillar erected on the H-shaped steel. Further, in Patent Document 2, a concrete block is used as a foundation, and a fence for protection is attached to the foundation, and the concrete block can be connected to other adjacent concrete blocks.
Such a temporary protection fence can be installed by leaving it at a predetermined position on the road surface, and does not require processing of the road surface. Then, when construction or the like is completed, the restriction on traveling of vehicles can be released by moving the temporary protection fence.

Utility Model Registration No. 3008876 JP 2011-26915 A

However, conventional temporary protection fences have the following problems that need to be solved.
The above-mentioned temporary guardrail supports the guardrail or guardrail stably by the weight of the H-beam foundation or the concrete block foundation and resists accidental intrusion by vehicles. For this reason, when installing a temporary protective fence, a foundation made of H-shaped steel or concrete blocks is lifted using a lifting machine or the like and installed at a predetermined position. In addition, it takes a long time to sequentially install and arrange temporary protective fences of a predetermined length.
In addition, when a foundation made of H-shaped steel or concrete blocks is lifted and installed, it is necessary to restrict travel over a wide area and for a long time in order to avoid danger to vehicles traveling in a nearby position, such as a nearby lane. There is

The present invention has been made to solve such problems, and its object is to enable installation in a predetermined position in a short period of time, and to change the traveling state of a vehicle, etc. from an unrestricted state to a restricted state. To provide a temporary protective fence and a temporary protective fence connecting body that enable transition in a short time.

In order to solve the above problems, the invention according to claim 1 is a temporary protection fence installed on a road surface for preventing vehicles from entering a restricted area, the fence having a predetermined length in the longitudinal direction. a main body installed on the road surface; connecting mechanisms provided at both ends of the main body in the longitudinal direction for detachably connecting to main bodies of other temporary protection fences; a caster provided vertically movable with respect to the part, wherein the caster rises from the lower end of the main body and the main body is in contact with and supported on the road surface, and the main body is supported. To provide a temporary protection fence which protrudes from the lower end of a road surface and is operable in a state in which the main body separates from a road surface and is supported by the casters.

In this temporary protection fence, the body can be supported by casters in a state in which a plurality of fences are connected, and can be moved in a state in which they are connected. Therefore, it is possible to install a temporary protection fence over a long distance in a short time. For example, when restricting some lanes of a road with two or more lanes, the temporary protective fences of the present invention are arranged on the road shoulder or the like, and each temporary protective fence is supported by casters in a connected state. Then, it moves to the boundary between the lane that regulates the connected multiple temporary protective fences and the lane that allows vehicle traffic, raises the casters, and lowers the main body onto the road surface, thereby quickly erecting the temporary protective fence. can be installed. In addition, since it is not necessary to lift the temporary protective fence for movement, it is possible to avoid danger to vehicles in lanes that allow passage.

The invention according to claim 2 is the temporary protective fence according to claim 1, wherein the connection mechanism is capable of horizontally rotating the body portions of both the temporary protective fence and the other temporary protective fence. shall be linked.

In this temporary protection fence, since the connecting portion connecting the plurality of fences is rotatable, it becomes easy to arrange in a curved line. In addition, the temporary protection fences can be moved sequentially in a connected state, and can be installed smoothly with human power or a simple device.

The invention according to claim 3 is the temporary protective fence according to claim 2, wherein the connection mechanism limits the angle at which the main bodies of both the temporary protective fence and the other temporary protective fence rotate in the horizontal direction. shall have an angle limiting member for

In this temporary protective fence, when a vehicle or the like collides with a plurality of the temporary protective fences installed in a connected state, the collision part of the temporary protective fence moves due to the impact. is effectively transmitted to adjacently connected temporary guardrails. This prevents the amount of movement of the temporary protection fence from becoming excessive. In addition, the temporary protective fence at the colliding portion and the temporary protective fence connected adjacently move with frictional resistance acting between them and the road surface, thereby mitigating the impact of the colliding vehicle.

The invention according to claim 4 is the temporary protective fence according to any one of claims 1 to 3, wherein the connection mechanism has a first connection plate projecting horizontally from the main body, The first connecting plate protrudes so that it can be horizontally overlapped with a second connecting plate supported by the main body of the other temporary protective fence to be connected, and the first connecting plate and A connecting rod vertically passing through circular holes provided in both the second connecting plate and the second connecting plate is provided.

In this temporary protective fence, two temporary protective fences are connected by adjusting the position of the first connecting plate and the second connecting plate of another temporary protective fence, and inserting the connecting rod into the circular hole from above. Can be easily connected. Then, the two temporary protection fences can be rotated in the horizontal direction with the connecting rod as the rotation axis.

The invention according to claim 5 is the temporary protective fence according to any one of claims 1 to 4, wherein the main body part includes end plates made of steel supported vertically at both ends in the longitudinal direction. , a connecting member horizontally connecting both end plates, and side plates made of steel attached to both longitudinal sides of the structure composed of the end plates and the connecting member, The side plates have protrusions that are horizontally continuous between end plates provided at both ends, and the main body is pushed up by applying an upward lifting force to the downward surfaces of the protrusions. It shall have the strength that can be

In this temporary protective fence, the end plates and side plates are made of steel and can be easily assembled. Then, an upward lifting force is applied to the downward surface of the convex portion to lift the body portion, and in this state, the body portion can be moved in the horizontal direction. At this time, the upward lift force is applied via a roller that can move horizontally along the convex part, and the part to be lifted of the temporary guard fences connected beyond the connecting part between the temporary guard fences is lifted. It is also possible to move the temporary protective fences that are moved and connected sequentially.

The invention according to Claim 6 is the temporary protective fence according to any one of Claims 1 to 5, wherein the caster comprises: an outer cylinder fixed to the main body; A caster support having a lifting shaft with a male thread that is twisted into a formed female thread, and a caster base coupled to the lower end of the lifting shaft so as to be relatively rotatable around the axis of the lifting shaft. shall be supported by the mechanism.

In this temporary protective fence, the main body is quickly raised and lowered by rotating the elevating shaft around the axis, and the main body is quickly switched between the state supported by the road surface and the state supported by the casters. becomes possible.

The invention according to claim 7 is the temporary protection fence according to any one of claims 1 to 6, wherein the main body part has an additional weight block that can be attached and detached.

In this temporary protective fence, the weight of the main body is lightened to facilitate transportation and installation, and resistance to movement after installation can be increased by the mass of the additional weight block.

The invention according to claim 8 is a temporary protective fence connected body in which a plurality of temporary protective fences according to any one of claims 1 to 7 are connected in the longitudinal direction, at least the temporary protective fence connected body To provide a temporary protection fence connection body, one end of which is connected to a column fixed to the ground.

If the ends of the connecting body to which multiple temporary protective fences are connected are not restrained, there is a risk that the amount of movement near the ends of the connecting body will be excessive if a vehicle or the like collides near the ends. , In the temporary protection fence connection body of the invention according to this claim, the movement amount is suppressed by connecting the ends to the pillars fixed to the ground, and the safety within the range regulated by the temporary protection fence can be ensured. The pillars may be newly installed, or existing guardrail pillars or the like may be used.

The invention according to Claim 9 is directed to the temporary protection fence connection body according to Claim 8, wherein the connection device for connecting the column and the end of the temporary protection fence connection is a first connecting device attached to the column. and a second vertical connection plate attached to an end of the temporary protective fence connecting body by the connection mechanism, wherein the first connection vertical plate and the second connection vertical plate are superimposed and joined together so that the ends are connected to the pillars.

In this temporary protective fence connecting body, the length of the first connecting vertical plate attached to the pillar and the second connecting vertical plate attached to the temporary protective fence connecting body side is adjusted, or the overlapping range of these is adjusted. Therefore, even when the distance between the column body and the end of the temporary protection fence connection body is different, it is possible to easily cope with and connect the temporary protection fence connection body.

As described above, in the temporary protective fence of the present invention, the body can be supported by the casters in a state in which a plurality of the fences are connected, and can be moved in a connected state, so that the temporary protective fence can be installed over a long distance in a short time. becomes possible. In addition, in the temporary protective fence connecting body of the present invention, it is possible to easily move in a direction perpendicular to the longitudinal direction in a state in which a plurality of temporary protective fences are connected, and to ensure the safety of the regulated area against collisions of vehicles. can be maintained.

It is a schematic perspective view of the temporary protection fence which is one Embodiment of this invention, and is the figure drawn so that the A end of a main-body part could be seen to the front. It is a schematic perspective view of the temporary protection fence shown in FIG. 1, and is the figure drawn so that the B end of a main-body part could be seen in front. It is the front view and sectional drawing of a temporary protection fence shown in FIG.1 and FIG.2. It is the top view and side view of a temporary protection fence shown in FIG.1 and FIG.2. FIG. 3 is an assembly drawing of the structure of the temporary protection fence shown in FIGS. 1 and 2; It is a schematic perspective view which shows the attachment state of the side plate of the temporary protective fence shown in FIG.1 and FIG.2. FIG. 3 is a cross-sectional view of a portion of the temporary protective fence shown in FIGS. 1 and 2 provided with casters, showing a state in which the casters are lowered with respect to the main body and the main body is supported via the casters; . It is a top view which shows the part which connected two temporary protection fences. It is a schematic plan view which shows the process of installing the temporary protection fence of this invention. It is a schematic plan view which shows the process of installing the temporary protection fence of this invention. It is the schematic which shows the other method of moving in the state which connected the temporary protective fence of this invention. FIG. 12 is a schematic plan view showing a method of moving the vehicle shown in FIG. 11 with the temporary protection fence connected. It is the schematic which shows a state when a vehicle collides with a temporary protective fence connection body. It is a schematic plan view which shows the state which connected the edge part of the temporary protective fence connection body of this invention to the support|pillar of a guardrail. It is a side view which shows the state which connected the edge part of the temporary protective fence connection body of this invention to the support|pillar of a guardrail. It is the top view and side view which show the connection apparatus used in order to connect the edge part of the temporary protective fence protective fence connection body of this invention to a pillar. FIG. 4 is a schematic cross-sectional view showing a state in which a concrete block for adding mass is attached to the main body.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 are schematic perspective views showing a temporary protective fence that is an embodiment of the present invention, FIG. 3 is a front view and cross-sectional view, and FIG. 4 is a plan view and a side view. Also, FIGS. 5 and 6 show the assembly of the structure constituting this temporary protection fence and the mounting state of the side plates.
The temporary protective fence 1 has a main body 2 made of steel and is equipped with casters 3 so that the main body 2 can be moved up and down. In addition, connecting mechanisms 4 are provided at both ends of the main body 2 in the longitudinal direction so that a plurality of temporary protection fences having the same configuration can be connected in the longitudinal direction. The casters 3 support the main body 2 by lowering the casters 3 from the state in which the main body 2 is supported in contact with the road surface as shown in FIGS. This is what makes it possible.

The body portion 2 has a structure 11 made of steel and side plates 12 supported by the structure 11 . The structure 11 includes end plates 13a and 13b provided vertically at both ends in the longitudinal direction, and an intermediate plate 14 provided at a central portion between the two end plates 13a and 13b at a substantially right angle to the longitudinal axis. , two intermediate reinforcing plates 15 provided substantially parallel to the intermediate plate 14 between the end plates 13a, 13b and the intermediate plate 14, and upper portions of the end plates 13a, 13b, the intermediate plate 14, and the intermediate reinforcing plate 15 An upper connecting member 16 that connects horizontally and a lower connecting member 17 that connects the lower portions of the end plates 13a and 13b, the intermediate plate 14, and the intermediate reinforcing plate 15 constitute the main portion. Side plates 12 made of steel are attached to both sides of the structure 11 .

As shown in FIG. 3(a), the end plates 13a and 13b have a plurality of convex portions 13c projecting sideways from the upper portion, and the lower portion is a steel plate that widens downward. A vertically continuous concave portion is formed in the portion by a vertical bending line 13d. A plurality of connecting plates 21a and 21b are attached to the concave portion so as to protrude substantially horizontally, and circular holes 22 are provided in each of the connecting plates. These connection plates 21a and 21b constitute the connection mechanism 4. The height position of the connection plate 21a provided at one end of the main body 2, that is, the A end, is the same as that of the other end, that is, the B end. It is different from the height of the connecting plate 21b provided in . The connecting plate 21a provided at the A end can be vertically overlapped with the connecting plate 21b provided at the B end of another temporary protective fence of the same configuration, and the circular holes 22 can be aligned in the horizontal direction. sticking out as much as possible.
The connecting mechanism 4 will be described later.

The intermediate plate 14 and the intermediate reinforcing plate 15 are flat steel plates arranged substantially perpendicular to the longitudinal axis of the main body 2. The intermediate plate 14, the intermediate reinforcing plate 15 and the end plates 13a and 13b have As shown in FIG. 5, a plurality of projecting fixing portions 18a, 18b, 18c projecting from the side edges in the longitudinal direction of the main body are provided. The projecting fixing portion 18 can be joined to the upper coupling member 16 , the lower coupling member 17 and the side plate 12 .

The upper connecting member 16 connects the end plates 13a, 13b and the intermediate plate 14, and has a flat portion in the center in the width direction, and the vicinity of both side edges is bent obliquely downward. . They are fixed by bolts to mounting members 19 attached to the rear surfaces of the end plates 13a and 13b and the vertical surface of the intermediate plate 14. As shown in FIG.
The lower connecting member 17 is formed by bending a steel plate, and is fixed by bolts to projecting fixing portions 18c provided on both side edges of the lower portions of the end plates 13a and 13b, and connects both end plates at both side edges. It is something to do.
Between the end plates 13a and 13b, the lower portion of the intermediate plate 14 and the lower portion of the intermediate reinforcing plate 15 are fixed to the lower connecting member 17, and the upper portion of the intermediate reinforcing plate 15 is in contact with the lower surface of the upper connecting member 16. Fixed.

The side plate 12 is formed by bending a steel plate along a plurality of horizontal bending lines, and has a corrugated cross section in which convex portions and concave portions that are continuous in the horizontal direction are alternately formed. The shapes of the protrusions and recesses correspond to the plurality of protrusions 13c formed on the upper side edges of the end plates 13a and 13b. Then, it is fixed by bolts to projecting fixing portions 18c projecting in the axial direction of the main body portion from the projecting portions 13c of the end plates, and is supported on both sides between the two end plates.

The caster 3 is supported by a caster support mechanism 31. The caster support mechanism 31 rotates the outer cylinder 32, the elevating shaft 33 mounted inside the outer cylinder 32, and the elevating shaft 33 about the axis. It has a handle 34, a caster base plate 35 joined to the lower end of an elevating shaft 33 so as to be rotatable around the axis with respect to the elevating shaft, and a fixing member 36 for fixing the outer cylinder 32 to the main body portion 2. It is. A plurality of casters 3 are attached to the lower surface of the caster base plate 35 and are capable of rotating in the horizontal direction with respect to the caster base plate 35 .

A female screw is formed on the inner peripheral surface of the outer cylinder 32 and is twisted with a male screw formed on the elevation shaft 33 . The elevating shaft 33 is rotationally driven about the axis by the rotation of the handle 34 and displaces relative to the outer cylinder 32 in the vertical direction. Therefore, by rotating the handle 34, the elevating shaft 33, the caster base plate 35, and the casters 3 are lowered with respect to the main body 2, and the main body 2 is lifted from the road surface 5 as shown in FIG. The body part 2 can be supported. At this time, the elevating shaft 33 and the caster base plate 35 are joined so as to be relatively rotatable, and the rotation of the elevating shaft 33 is not transmitted to the caster base plate 35 . Since the casters 3 can be turned with respect to the caster base plate 35, the main body 2 can be moved in any direction.

The connection mechanism 4 connects the A end of the temporary protective fence 1 and the B end of another temporary protective fence of the same configuration, and can sequentially connect a large number of temporary protective fences in series. be. As shown in FIG. 5, the connecting mechanism 4 includes a plurality of connecting plates 21a, 21b fixed to the end plates 13a, 13b, a connecting rod 23 inserted through a circular hole 22 of the connecting plate, and a connecting portion. The main part is configured with the angle limiting member 24 .
The angle limiting member 24 has a cylindrical portion 24a through which the connecting rod 23 is inserted, and a plate-like portion 24b supported by the cylindrical portion 24a. When the plate-like portion 24b is attached to the connecting rod 24 connecting the two temporary protective fences, the plate-like portion 24b is positioned between the opposing end plate 13a at the A end and the end plate 13b at the B end of the other temporary protective fence. and are supported in positions adjacent to or in contact with the sides of both end plates.

By means of the connecting mechanism 4, the end A of the temporary protective fence 1 and the end B of another temporary protective fence having the same configuration can be connected as follows.
The A end of the temporary protective fence and the B end of another temporary protective fence having the same configuration are butted against each other, and arranged so that the circular holes 22 of both connecting plates 21a and 21b are aligned on the plane. By inserting the connecting rod 23 from above, the two temporary protection fences can be connected.
The two temporary protection fences 1 and 1' connected in this manner can be horizontally rotated relative to each other about the connecting rod 23 as shown in FIG. The plate-like portion 24b of the angle limiting member 24 is inserted between the opposing end plates 13a and 13b to regulate the rotatable angle. The regulated angle α can be adjusted by the thickness of the plate-like portion 24b, and is desirably regulated from 3 degrees to 15 degrees. More desirably, the angle is 4 to 8 degrees, and 6 degrees in the embodiment shown in FIG.

Next, an example of the process of installing the temporary protection fence will be described. This is to restrict some lanes on an expressway with multiple lanes and install temporary protective fences for pavement repair work.
First, as shown in FIG. 9(a), pylons 41 (for example, registered trademark: Color Cone) are arranged along the line of the road to control entry into the road shoulder 42. As shown in FIG. Subsequently, as shown in FIG. 9(b), a plurality of temporary protective fences 1 are brought into the road shoulder 42, moved while being supported by casters, and arranged along the line of the road. Then, a plurality of temporary protection fences 1 are connected in series by a connection mechanism to form a temporary protection fence connection body 10 as shown in FIG. 9(c). After that, it moves to the boundary between the lane 43 that restricts the pylon 41 and the lane 44 that permits the passage of vehicles. A temporary protection fence connection body 10, which connects a plurality of temporary protection fences on the road shoulder, moves in the width direction of the road in the range where vehicle traffic is restricted, as shown in FIG. 10(a). The movement is performed while the main body is supported by casters, and may be pushed forward sequentially by human power or may be pushed forward using a vehicle or the like.

After moving the temporary protection fence connecting body 10 to a predetermined position as shown in FIG. Lower until it rests on top. Also, if necessary, some of the temporary protection fences are disconnected, and as shown in FIG. You can also

When moving the temporary protection fence connection body 10 using a vehicle, the following method can also be adopted.
In this method, the main body 2 of the temporary protective fence 1 is directly supported on the road surface, and a part of the temporary protective fence connecting body 10 is lifted and moved by a vehicle 45 as shown in FIG. Then, as shown in FIG. 12, the temporary protective fence connecting bodies 10 connected in series are moved sequentially over the entire length while moving the area to be lifted by the running of the vehicle 45 .

As shown in FIG. 11 , the vehicle 45 has an arm 51 for lifting the temporary protective fence 1 , and the arm 51 is provided with rollers 52 that contact both sides of the temporary protective fence 1 . The rollers 52 are brought into contact with the downward surfaces of the protrusions provided on the side plates 12 of the temporary protective fence 1, and can support the temporary protective fence 1 in a lifted state. As the vehicle 45 travels, the roller 52 rotates and moves along the convex portion of the temporary protective fence 1 that continues in the longitudinal direction, thereby transferring the lifted portion of the temporary protective fence coupling 10 . Therefore, as shown in FIG. 12, the vehicle 45 is caused to travel in the axial direction of the temporary protective fence connecting body 10, and the lifted portion of the temporary protective fence connecting body 10 is continuously moved in the width direction of the road. can go

Such a temporary protection fence 1 can be easily moved while being supported by the casters 3, and can be connected to form a temporary protection fence connection body 10 with a small amount of work. And it can move easily in the connected state, and the temporary protection fence 1 can be installed over a predetermined long range in a short time.
13, when a traveling vehicle 46 or the like collides with the temporary protective fence connecting body 10 in which the temporary protective fences 1 are connected in series, the temporary protective fence connected body 10 is moved by the impact and connected to the adjacent temporary protective fence. the force due to the collision is transmitted to At this time, the rotation angle between the connected and adjacent temporary protective fences is restricted, so that the multiple temporary protective fences move in a gentle curve, and excessive movement of each temporary protective fence is suppressed. be done. As a result, even if each temporary protection fence is made lightweight, it is possible to suppress the amount of movement when a vehicle collides, and to ensure the safety of workers and the like within the restricted area.

On the other hand, when a vehicle or the like collides with the vicinity of the end of the temporary protection fence connecting body 10, there is a possibility that the amount of movement of the temporary protection fence increases. At this time, as shown in FIG. 14, the ends of the temporary protective fence connecting body 10 can be connected to the pillars fixed to the ground. Although the pillars may be newly provided, the pillars 48 of the existing guardrails 47 can be used.

FIG. 15 is a side view showing a state in which the ends of the temporary protective fence connecting body 10 are connected to the posts 48 of the guardrail 47. FIG. 16A and 16B are a side view and a plan view showing each member of a connecting device 60 for connecting the ends of the temporary protective fence connecting body 10 to the posts 48 of the guardrail.
The connecting device 60 is made of steel and comprises a first connecting vertical plate 61 attached to the pillar 48 and a second connecting vertical plate 62 connected to the end of the temporary protective fence connecting body 10. It is.

The first connecting vertical plate 61 has a vertical plate portion 71 and an attachment portion 72 for attachment to the support column 48 .
The mounting portion 72 includes a support contact portion 72a that contacts the outer peripheral surface of the support, an auxiliary member 72b that contacts the outer peripheral surface of the support 48 at a position facing the support contact portion 72a, and the support 48. and bolts 72c that connect both ends of the auxiliary member 72b and the column abutting portion 72a. The mounting portion 72 is connected to the vertical plate portion 71 by a steel member 73 .
The vertical plate portion 71 is provided with a plurality of bolt holes 71a arranged in the horizontal direction. These bolt holes 71a are elongated and curved in the vertical direction.
The second connecting vertical plate 62 has a vertical plate portion 74 and a horizontal projecting plate 75 for connecting with the temporary protective fence connecting body 10 , which are connected via a steel plate 76 . The vertical plate portion 74 is provided with a bolt hole 74a having the same shape as the vertical plate portion 71 of the first connecting vertical plate. Further, the horizontal projecting plate 75 is provided with a circular hole 75a for inserting the connecting rod 23 of the connecting mechanism of the temporary protection fence.
In addition, the vertical plate portions 71 and 74 of the first connecting vertical plate 61 or the second connecting vertical plate 62 have their horizontal lengths set in advance according to the situation of the installation location of the temporary protective fence connecting body. can be kept

The ends of the temporary protective fence connecting body 10 can be connected to the posts 48 of the guardrails 47 as follows using the connecting device 60 as described above.
A first connecting vertical plate 61 is attached to the support 48 of the guardrail. On the other hand, the position of the circular hole 75a of the horizontal projecting plate 75 of the second vertical connecting plate 62 and the circular hole provided in the connecting plate 21a of the temporary protective fence 1 is located at the end of the temporary protective fence connecting body 10. are aligned, and the connecting rod 23 is passed through both from above to connect the second connecting vertical plate 62 . Then, the vertical plate portion 71 of the first connecting vertical plate 61 and the vertical plate portion 74 of the second connecting vertical plate 62 are overlapped, and the bolts 77 are inserted through the bolt holes 71a and 74a at the same positions and tightened. connect.
As described above, the ends of the temporary protective fence connecting body 10 can be easily connected to the existing pillars.

The temporary protective fence of the present invention is made mainly of steel and can be made lightweight to facilitate transportation and installation. Mass can be added. FIG. 17 is a schematic cross-sectional view showing a state in which a concrete block 81 is attached as an additional mass to the temporary protective fence 1. As shown in FIG.
This concrete block 81 is supported by a support member 82 attached to the structure. The support member 82 spans between the lower connecting members 17 provided on both sides of the temporary protection fence 1 . A female screw member 83 is embedded in the concrete block 81 and fixed to the supporting member 82 by a bolt 84 that is twisted with the female screw member 83 . It is desirable that a plurality of concrete blocks 81 be attached to one temporary protection fence in the longitudinal direction.

The temporary protective fence 1 and the temporary protective fence connecting body 10 described above with reference to the drawings are illustrative of embodiments, and the present invention is not limited to these. Therefore, the size, shape, material, etc. of the structure can be appropriately changed within the scope of the present invention.

1: Temporary protection fence, 2: Main unit, 3: Caster, 4: Connecting mechanism, 5: Road surface,
10: Temporary protective fence connecting body,
11: Main body structure 12: Side plates 13a: End plate at A end of temporary protective fence 13b: End plate at B end of temporary protective fence 13c: Convex part of end plate 13d: End plate 14: Intermediate plate 15: Intermediate reinforcing plate 16: Upper connecting member 17: Lower connecting member 18a: Overhang fixing part provided on the intermediate plate 18b: Tension provided on the intermediate reinforcing plate Projection fixing portion 18c: Projection fixing portion provided on the end plate 19: Mounting member
21a: A-end connecting plate 21b: B-end connecting plate 22: Circular hole 23: Connecting rod 24: Angle limiting member 24a: Cylindrical portion of angle limiting member 24b: Plate shape of angle limiting member Part，
31: caster support mechanism, 32: outer cylinder, 33: elevating shaft, 34: handle, 35: caster substrate,
41: Pylon (e.g. registered trademark: Color Cone), 42: Road shoulder, 43: Lane restricting vehicle traffic, 44: Lane allowing vehicle traffic, 45: Vehicle for moving temporary protective fence, 46: Running vehicle, 47: Guardrail, 48: Post of guardrail,
51: arm, 52: roller,
60: connecting device, 61: first connecting vertical plate, 62: second connecting vertical plate,
71: Vertical plate portion of first connecting vertical plate 71a: Bolt hole provided in vertical plate portion 72: Mounting portion of first connecting vertical plate 72a: Strut contact portion 72b: Auxiliary member 72c : bolt 73: steel member 74: vertical plate portion of second connecting vertical plate 74a: bolt hole provided in vertical plate portion 75: horizontal overhang plate 75a: circular hole 76: steel plate. 77: bolt,
81: concrete block, 82: support member, 83: female screw member, 84: bolt

Claims (9)

A temporary protective fence installed on the road surface to prevent vehicles from entering a restricted area,
a main body having a predetermined length in the longitudinal direction and installed on the road surface;
a connecting mechanism provided at both longitudinal ends of the main body for detachably connecting with the main body of another temporary protection fence;
a caster provided movably in the vertical direction with respect to the main body,
The caster rises from the lower end of the main body, and the main body is in contact with and supported on the road surface, and protrudes from the lower end of the main body, and the main body separates from the road surface and is supported by the caster. A temporary protective fence characterized by being in a closed state and being operable. 2. The temporary protective fence according to claim 1, wherein the connecting mechanism connects the main bodies of the temporary protective fence and the other temporary protective fence so as to be capable of rotating in the horizontal direction. . 3. The temporary protection according to claim 2, wherein the connecting mechanism has an angle limiting member for limiting the angle of horizontal rotation of both the main bodies of the temporary protection fence and the other temporary protection fence. fence. The connecting mechanism has a first connecting plate projecting horizontally from the main body,
The first connecting plate protrudes so as to be able to overlap the second connecting plate supported by the main body of the other temporary protective fence to be connected, and
4. The apparatus according to any one of claims 1 to 3, further comprising a connecting rod penetrating vertically through circular holes provided in both the first connecting plate and the second connecting plate. temporary protective fence. The main body includes end plates made of steel supported in the vertical direction at both ends in the longitudinal direction;
a connecting member horizontally connecting both end plates;
a side plate attached to both longitudinal side surfaces of a structure composed of the end plate and the connecting member;
The side plates have protrusions that are horizontally continuous between end plates provided at both ends, and the main body is pushed up by applying an upward lifting force to the downward surfaces of the protrusions. 5. The temporary protection fence according to any one of claims 1 to 4, characterized in that it has a strength capable of The caster is
an outer cylinder fixed to the main body; a lifting shaft provided with a male screw that is twisted with a female screw formed on the inner peripheral surface of the outer cylinder; 6. The temporary protective fence according to any one of claims 1 to 5, characterized in that the temporary protective fence is supported by a caster support mechanism having a caster base plate coupled so as to be capable of relative rotation. 7. The temporary protection fence according to any one of claims 1 to 6, characterized in that it has an additional weight block that can be attached to and detached from said main body. A temporary protective fence connected body in which a plurality of temporary protective fences according to any one of claims 1 to 7 are connected in the longitudinal direction,
A temporary protective fence connecting body, characterized in that both ends of the temporary protective fence connecting body are connected to pillars fixed to the ground. A connection device for connecting the pillar and the end of the temporary protection fence connection body,
a first connecting vertical plate attached to the column;
a second connecting vertical plate attached to the main body by the connecting mechanism at the end of the temporary protective fence connecting body;
9. The temporary protective fence connection according to claim 8, wherein the first connecting vertical plate and the second connecting vertical plate are overlapped and joined to connect the ends to the pillars. body.

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