JP2000110414A - Shutoff fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a tiltable shutoff fence, to lower the manufacturing cost, and to improve the appearance while narrowing supports by connecting both ends of a lateral bar of a shutoff fence to be horizontally stretched between a pair of supports in right and left to the supports through a flexible joint body. SOLUTION: A space 7 is formed between side walls 6, 6 of a passage 3, and a shutoff fence 1 is arranged in the space 7. The shutoff fence 1 is formed of a pair of supports 8, 8 and lateral bars 9 through a joint (s). Both ends of each lateral bar 9 are connected to the supports 8, 8 through a flexible joint 10 freely to be tilted. The lateral bar 9 is formed of cylindrical base pipes 12a arranged in both side ends and a connecting bars 12b, and ends of the connecting bar 12b are connected to the inside of the base pipe 12a freely to be moved forward and backward. The flexible joint for connecting the base pipe 12a and the connecting base part 8b to each other is formed by fitting a coil spring 13 into a rubber pipe body 14 so as to maintain the shape. Both ends of the rubber pipe body 14 are pushed into the base pipe 12a and the connecting base part 8b, and connected to each other for fixation. The connected lateral bar 9 can be freely tilted in any direction around the flexible joint body 10 as a fulcrum.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blocking fence disposed on a side of a passage connecting two buildings across an joint located between adjacent buildings, and on a side of a sidewalk inside and outside the building.

[0002]

2. Description of the Related Art In recent years, in order to minimize damage caused by an earthquake, a part of a building whose lower part is supported by a seismic isolation device having a buffer function has been constructed.

In such a seismically isolated building, a passage such as a crossing corridor connecting both buildings across an joint located between adjacent buildings is disposed in a gap on a side portion of the passage, and the space between the building and the corridor. A blocking fence that can be used for blocking has been previously proposed by the present applicant as Japanese Patent Application No. 9-209628.

As shown in FIG. 10, a pair of support rods b, b standing up via joints s, and these shield fences a are externally fitted to the support rods b, b so as to be horizontally rotatable. The supporting columns d, d are constituted by the single or plural rotating tubes c, c,
By fixing the ends of the extendable horizontal rods e to the rotating pipes c, c of both the columns d, d, a plurality of horizontal rods e are suspended between the columns d, d. The gap e on the side of the passage f is blocked by the rod e. Then, when an adjacent building is relatively displaced in the front-rear direction (direction along the joint) at the time of the earthquake, each horizontal rod e expands and contracts, and
Is rotated in the horizontal direction with respect to the support rods b, b through the horizontal rotation action of the rotation pipes c, c, and follows the relative displacement.

[0005]

In such a conventional blocking fence a, in order to be able to follow the relative displacement of the building in the front-rear direction as described above, each support d is supported by a support rod b. Has a problem that the manufacturing cost is high, the strut d is thick and the appearance is poor, and the strut d has a circular cross section. There was a problem that it was limited.

An object of the present invention is to provide a blocking fence capable of solving the problems of the conventional configuration.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a barrier fence having at least a pair of right and left upright columns and a single or a plurality of horizontal bars bridging between the columns. Is connected to the support column in a tiltable manner via a flexible joint body.

In this configuration, the flexible joint body is constituted by a rubber tube body in which a coil spring for retaining a shape is inserted, and one end of the rubber tube body is connected to an end of the horizontal rod. , And the other end is fixed to a connection base that is laterally formed on the column, or a flexible joint body is formed by a coil spring, and one end of the coil spring is fixed to the end of the horizontal rod. Then, the other end fixed to a connecting base portion formed laterally on the column can be proposed as a preferred embodiment of the flexible joint body.

In such a configuration, the blocking fence is provided on a passage connecting the two buildings across the joint located between the adjacent buildings.
The horizontal bars that are arranged at the joints on the sides and are laid between the struts are horizontal bars with an expansion and contraction function. Is expanded and contracted, and the horizontal rod is tilted with respect to the support column via the flexible joint body, so that it can follow the relative displacement.

In the case where the blocking fence is provided on the side of the sidewalk inside or outside the building, there is a slope at the place where the blocking fence is provided, or there is a shift in the longitudinal direction between the columns arranged in plural rows. Also, since the horizontal rod can be tilted with respect to the support via the flexible joint body, it is possible to cope with the inclination and the displacement in the front-rear direction without any trouble. In this case, since the function of expanding and contracting the horizontal rod is unnecessary, a normal pipe material can be applied to the horizontal rod.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention is shown in FIGS.
Referring to FIG.

FIG. 1 shows a construction example in which the barrier fence 1 according to the present invention is used as a joint barrier fence.
It is arranged at the joint position on the side of the passage connecting the two buildings across the joint located between adjacent buildings. Here, although not shown, the lower part of one or both of the adjacent buildings is supported by a seismic isolation device having a buffer function, and has a seismic isolation structure. As shown in FIG. 1, a part of the corridor 2 is protruded from one of the buildings x, and a crossing corridor y continuous to the corridor 2 is extended from the other building (not shown). A joint s of a predetermined width is provided between the tip of the crossing corridor y and the corridor 2 of the building x to allow relative displacement in the approaching direction.

The corridor 2 and the crossing corridor y form a passage 3 connecting the two buildings across the joint s located between the adjacent buildings. On the floor surface 4 of the passage 3, a floor joint cover device 5 of a known structure that is located at the joint s and that can follow at least the relative displacement in the left-right and front-back directions is provided. The joint s on the floor 4 is shielded by the joint cover device 5.

Side walls 6 and 6 are provided on the side of the passage 3 along its longitudinal direction, and a gap 7 is formed in the side walls 6 and 6 at a position corresponding to the joint s. The blocking fence 1 according to the present invention is disposed in the gap 7.

The blocking fence 1 is composed of a pair of columns 8, 8 erected through joints s, and a plurality of horizontal rods 9 suspended at predetermined intervals in the vertical direction between the columns 8, 8. Both ends of each horizontal rod 9 are tiltably connected to the columns 8, 8 via flexible joints 10, respectively.

Each pillar 8 is formed in a relatively small diameter cylindrical shape using a pipe material having a circular cross section as a raw material, and has a support plate 8a at its lower end. Then, the support plate 8a is fixed to a plurality of anchors 11 planted in the floor of the passage 3 so that the columns 8 are erected. In addition, a plurality of cylindrical connecting bases 8b are formed on each of the columns 8 at the upper and lower sides at equal intervals in accordance with the number of the horizontal rods 9 to protrude sideways.

On the other hand, each of the horizontal rods 9 has cylindrical base tubes 12a, 12a arranged at both ends, and the base tubes 12a, 1a.
An end is inserted into the base pipes 12a, 12a from the opposing distal end thereof so as to be able to advance and retreat, respectively, and comprises a connecting rod 12b connecting the two base pipes 12a, 12a. It has a function of extending and retracting the entire length of the pipes 12a, 12a by moving the pipes relative to each other. The base tubes 12a, 12a of the horizontal rods 9 are formed so as to have substantially the same inner and outer diameters as the connecting base 8b of the column 8.

The end of the base tube 12a of the horizontal rod 9 and the support 8
The flexible joint body 10 connecting the connecting base 8b of FIG.
As shown in FIG. 1, a coil spring 13 for maintaining a shape is constituted by a rubber tube 14 inserted therein. At both ends of the rubber tube 14, cylindrical fixing portions 15, 15 having outer diameters substantially equal to the inner diameters of the base tube 12a and the connecting base 8b are provided.
Further, metal fixed rings 16, 16 are fixed to the inner peripheral surfaces of the fixed portions 15, 15 by integral molding. A plurality of female screw holes 17 are formed at predetermined intervals in the circumferential direction in the fixed rings 16, 16 as shown in an enlarged view in FIG. 3, and the female screw holes 17 are formed in the fixed portions 15, 15. Through holes 18 communicating with the holes 17 are respectively formed. On the other hand, the screw 19 is inserted into a position coinciding with each of the through holes 18 in a state where the fixing portions 15 and 15 are fitted inside the end portion of the base tube 12a of the horizontal rod 9 and the connection base portion 8b of the column 8. A hole 20 is formed in advance.

Then, the fixing portions 15 of the flexible joint body 10,
15 are inserted into the end of the base tube 12a of the horizontal rod 9 and the connecting base 8b of the column 8, respectively, and the screws 19 are inserted through the through holes 20 with the through holes 18 being aligned with the through holes 20. Respectively, and insert the tip of the screw 19 into the female screw holes 1 of the fixed rings 16, 16.
7, the end of the base tube 12a and the connecting base 8b are fixed to the fixing portions 15, 15 via the tightening action.

As described above, the horizontal rod 9 connected to the connection base 8b of the column 8 via the flexible joint 10 as shown in FIG. Can be tilted. Here, the coil spring 13 inserted into the rubber tube 14 generates a reinforcing effect for supporting the weight of the horizontal rod 9 together with the rubber tube 14, and also through an elastic deformation operation of the coil spring 13 itself. This prevents abnormal deformation of the rubber tube 14 when the horizontal rod 9 is tilted, and can maintain a normal shape. Further, since the flexible joint body 10 forms a closed pipe by the rubber pipe body 14, there is an advantage that dust and rainwater do not enter the horizontal rod 9 and the connection base 8b, and the appearance is beautiful and the appearance is beautiful. It has excellent properties. Further, the columns 8, 8 and a plurality of horizontal rods 9 are provided.
As described above, the flexible joint body 10 is
By connecting to a construction site, it can be easily assembled at the construction site, and can be shipped in a disassembled state. Thereby, there is an advantage that it is not bulky in the distribution process and is easy to carry and store.

In the barrier fence 1 having such a configuration, when an adjacent building is relatively displaced in the approaching / separating direction (direction orthogonal to the joint) during an earthquake, each of the horizontal rods suspended between the two columns 8, 8. 9 expands and contracts according to the amount of the displacement, and follows the relative displacement in the approaching / leaving direction. In addition, when the adjacent building is relatively displaced in the front-rear direction (direction along the joint), each horizontal rod 9 expands and contracts, and the end of each horizontal rod 9 is connected to the columns 8 via the flexible joint body 10. It tilts in the horizontal direction and follows its relative displacement. Thereby, the blocking fence 1 follows the relative displacement of the adjacent building in the approaching direction and the front-back direction without difficulty, and the plurality of horizontal rods 9 bridged between the columns 8, 8 are used.
The gap 7 on the side of the passage 3 can be shut off without hindrance.

FIG. 5 shows an example in which the blocking fence 1 provided with the flexible joint body 10 having the above structure is used as a blocking fence for preventing crossing. It is disposed on the side of a sidewalk z. Here, the blocking fence 1 is composed of a plurality of columns 8 standing in a line along the side of the sidewalk z.
And a plurality of horizontal rods 9 laid between the adjacent left and right columns 8, 8 via a flexible joint body 10, and each of the horizontal rods 9 is made of a normal pipe material having no expansion / contraction function. Except for the point described above, the configuration is the same as that of the above embodiment, and the same portions are denoted by the same reference numerals, and redundant description will be omitted.

As described above, even if there is a gradient in the place where the blocking fence 1 is disposed, the horizontal rod 9 is supported on the support 8 by the flexible joint 1.
Since the inclination can be performed through the inclination operation of 0, the inclination can be dealt with without any trouble.

In the case where the blocking fence 1 is used as a crossing-preventing blocking fence, as shown in FIG. 6, even if a plurality of columns 8, Prop 8
Since the horizontal rod 9 can be tilted via the flexible joint body 10, it is possible to cope with the displacement in the front-rear direction without any trouble.

FIGS. 7 to 9 show a second embodiment. In this embodiment, the flexible joint body 10 in the first embodiment is constituted by a coil spring 21. FIG. The outer diameter of the coil spring 21 is, as shown in FIG.
And the inner diameter of the connecting base 8b is formed substantially equal to the inner diameter of the connecting base 8b, and both ends of the coil spring 21 are fitted in the end of the horizontal rod 9 and the connecting base 8b of the support 8 respectively, and fixed by welding. Is used to fix it. And, as described above, the flexible joint body 1 including the coil spring 21
Horizontal rod 9 connected to the connection base 8b of the support 8 via
As shown in FIG. 9, can be tilted in any direction with the flexible joint body 10 as a fulcrum.

FIG. 7 shows an example in which the blocking fence 1 provided with the flexible joint body 10 having the above-described configuration is used as a blocking fence for joints. Base pipes 12a, 12a arranged at the ends, and base pipes 12a, 12a
The ends of the base tubes 12a, 12
and a connecting rod 12b for connecting the members a and b, which has a function of expanding and contracting the entire length thereof. Even in the case of the blocking fence 1, similarly to the first embodiment, the relative displacement in the approaching direction of the adjacent building follows the expansion and contraction of the horizontal rod 9, and The relative displacement in the front-rear direction of the building can be followed through the expansion and contraction of the horizontal rod 9 and the tilting operation of the flexible joint body 10.

Further, the barrier fence 1 is connected to a sidewalk z inside and outside the building.
When there is a gradient (see FIG. 5) at the location of the installation, there is a shift in the longitudinal direction (see FIG. 6) between the columns 8, 8 arranged in a plurality of rows. Also, the flexible joint body 10 in which the horizontal rod 9 is formed of a coil spring 21 with respect to the support 8
, It is possible to cope with the inclination and the displacement in the front-rear direction without any trouble.

In the first and second embodiments, each column 8 has a circular cross section. However, the cross section of the column 8 is such that the connecting base 8b can protrude laterally. Any shape may be used. Further, although an example is shown in which a plurality of horizontal rods 9 are laid horizontally between the columns 8, 8, one horizontal rod 9 may be provided.

[0029]

As described above, the present invention comprises at least one pair of right and left columns 8, 8 and a single or a plurality of horizontal bars 9 suspended between the columns 8, 8. In the blocking fence 1, the end of the horizontal rod 9 is tiltably connected to each of the columns 8 via a flexible joint body 10, and the flexible joint body 10 has a shape. Coil spring 1 for holding
3 is constituted by a rubber tube 14 inserted therein,
One end of the rubber tube 14 is fixed to the end of the horizontal rod 9,
The other end is fixed to a connection base 8b laterally projecting to the column 8, or the flexible joint body 10 is constituted by a coil spring 21. One end of the coil spring 21 is attached to the end of the horizontal rod 9 Since it is fixed and the other end is fixed to the connecting base 8b which is laterally protruded from the column 8, the structure of the column 8 is simplified and its manufacturing cost is lower than that of the conventional double-structure column. Can be reduced, and the thickness of the column 8 can be reduced as much as possible, so that the appearance can be improved. Further, since the cross-sectional shape of the column 8 is not limited to a circular shape, the width of the shape setting of the column 8 is increased, and the freedom of the column design can be obtained. Furthermore, even when a vertical construction error occurs between the left and right columns 8, 8, the construction error can be absorbed by the tilting operation of the horizontal rod 9, so that there is an excellent effect that the construction is easy. .

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a construction state of a first embodiment of a blocking fence according to the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the above.

FIG. 3 is an enlarged sectional view of a main part of the above.

FIG. 4 is a plan view showing an operation state of essential parts of the above.

FIG. 5 is a vertical sectional front view showing another construction state of the first embodiment.

FIG. 6 is a plan view showing another construction state of the first embodiment.

FIG. 7 is a longitudinal sectional front view of a construction state according to a second embodiment.

FIG. 8 is a longitudinal sectional view of a main part of the above.

FIG. 9 is a plan view showing an operation state of a main part of the above.

FIG. 10 is a vertical sectional front view of a conventional configuration in a construction state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Breaking fence 8 Prop 9 Horizontal rod 8b Connection base 10 Flexible joint 13 Coil spring 14 Rubber tube 21 Coil spring

Claims (3)

[Claims] (1) at least a pair of right and left supporting columns,
In a blocking fence provided with a single or a plurality of horizontal rods suspended between the columns, an end of the horizontal rod is tiltably connected to the columns via a flexible joint body. A blocking fence characterized by the following. 2. The flexible joint body is constituted by a rubber tube body in which a coil spring for retaining a shape is inserted, and one end of the rubber tube body is fixed to an end of the horizontal rod. 2. The blocking fence according to claim 1, wherein the other end is fixed to a connection base formed laterally on the support. 3. The flexible joint body is constituted by a coil spring, one end of the coil spring is fixed to an end of the horizontal rod, and the other end is fixed to a connection base laterally formed on a column. The blocking fence according to claim 1, characterized in that: