JP2002363936A - Detachable balustrade - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a balustrade installed on a high level road of an expressway or the like in which guard pipes horizontally provided between posts can be easily replaced when the guard pipe is damaged. SOLUTION: Between the guard pipes 4 and 4 fixed to a pipe receiver at an upper end of the post 2 by bolts to be connected to each other in the length direction by a support part of the post, a gap g is provided, so that an inner sleeve 5 inserted as a coupler to end parts of the guard pipes 4 and 4 can be operated from the outside to be extracted from the pipes. A detachable cover plate 7 is put over the inner sleeve 5 where it is exposed at the position of the gap g as necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a railing provided on an elevated road such as an elevated expressway.

[0002]

2. Description of the Related Art As shown in FIG. 8, an elevated road 20 such as a highway is provided with a tall side wall 21 serving as a vehicle stop. In the case of the illustrated RC floor slab bridge,
The height H is usually set to 1 m.

As described above, if there are tall side walls on both sides of the road, the surrounding scenery is obstructed, and there is a concern that the driver may be psychologically oppressed.

Therefore, in an area where a sound insulation wall is not required, the side wall 21 is not required.
It has been considered that the height H of the road should be reduced to provide a railing on the side wall 21, and such a structure has been recognized on an expressway.

FIG. 9 to FIG. 11 are studied for highways.
It is a designed railing.

The column 1 has columns 2 erected at predetermined intervals on a side wall 21 having a height of about 60 cm, and supports a guard pipe 4 with a pipe receiver 3 provided at the upper end of the column. The guard pipe 4 uses a steel pipe or the like, and adjacent pipes are connected in a longitudinal direction at a support portion of the support column 2.

In the illustrated railroad, an inner sleeve 5 serving as a joint is inserted into a butt end of the guard pipe 4.
The guard pipes are connected by a method in which the ends of adjacent guard pipes are fixed to the pipe receiver 3 with bolts 6 screwed into the inner sleeve 5.

[0008]

The structure shown in FIGS. 9 to 11 in which a part of the side wall 21 is replaced by the railing 1 allows the surrounding field of vision to be widened and eliminates the above-mentioned problems, and also reduces the weight and cost of the viaduct road. If possible.

[0009] However, in the railroad 1 which has been studied so far, if the guard pipe 4 between the struts 2 and 2 is damaged by hitting a car or the like, the damaged pipe 4 can be cut and disassembled and removed. In order to replace the new guard pipe, the inner sleeves on both sides will not be able to be re-installed unless the guard pipe 4 from one side of the rail to the damaged part is removed, thus increasing wasteful work. , There was a problem that took time to repair.

An object of the present invention is to solve such a problem.

[0011]

In order to solve the above-mentioned problems, according to the present invention, an inner sleeve operation for exposing a part of the inner sleeve between the guard pipes of the high rail having the structure as described with reference to FIGS. There was a gap for use.

The pipe receiver at the upper end of the column may be formed in a cylindrical shape, and an inner sleeve may be inserted therein and fixed with bolts. In this case, the above-mentioned gap is provided between the pipe receiver and the guard pipe.

[0013] Preferably, a detachable cover plate is provided in the installation portion of the gap, and the cover plate is placed over the exposed portion of the inner sleeve.

The cover plate is fixed to one of the support and the inner sleeve.

[0015] In order to solve the above-mentioned problems, a guard pipe is provided so as to be laterally provided between columns which are erected at a predetermined interval, and the guard pipe is connected in a longitudinal direction at a support portion of the column, and the connection is performed. Insert the inner sleeve that forms the joint at the connection end of the adjacent guard pipe, and
A sliding telescoping pipe with the inner sleeve or the end of the guard pipe connected via the inner sleeve fixed to the pipe support provided at the top of the column with bolts, and a joint with the inner sleeve along the length of the guard pipe A dummy cover that is provided with a connecting portion, the amount of contraction of the pipe at the connecting portion is larger than the amount of insertion of the inner sleeve into the guard pipe end of the connecting portion supported by the column, and is detachable from the inner sleeve exposed portion of the pipe connecting portion. Also provided is a detachable railing that is configured with a cover. In this railing, the pipe support of the column may be made cylindrical, and the guard pipe ends on both sides of the column may be inserted and fixed in the pipe holder so that the pipe can be connected to the column using the inner sleeve. Can be done without using

[0016]

[Function] When a part of the inner sleeve is exposed at an appropriate interval between the guard pipes connected at the support part by the column, the inner sleeve can be pulled out of the guard pipe by grasping the exposed part, This makes it possible to replace a damaged guard pipe without removing another guard pipe.

The cover plate covers the inner sleeve exposed portion between the guard pipes to prevent the appearance of the railing from being deteriorated.

In the case where the pipe connection portion of the slide type is provided in the middle of the length of the guard pipe, the length of the guard pipe can be reduced by removing the dummy cover. The connected guard pipe can be removed from the inner sleeve or the tubular pipe receiver. Therefore, even in this configuration, only the damaged guard pipe can be replaced without removing another guard pipe. In addition, the installation of the dummy cover prevents the appearance from being deteriorated.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to FIG.
7 will be described with reference to FIG.

FIGS. 1 to 3 show a first embodiment. The detachable balustrade 1 is composed of a support column 2 standing upright at a predetermined interval on a side of an elevated road, a steel pipe guard pipe 4 extending between the support columns, and an inner pipe inserted into an end of the pipe 4. The sleeve 5 and the cover plate 7 are assembled.
The cover plate 7 is provided to improve the appearance of the railing, but is not an essential element.

The column 2 has a pipe receiver 3 at the upper part, and the pipe receiver 3 supports the end of the guard pipe 4.
The guard pipe 4 has an inner sleeve 5 serving as a joint, which is inserted into and removed from an end of the guard pipe 4 so that the connection ends face each other with a gap g between two pipes connected to each other.

As shown in FIG. 3, holes 9 and 10 for passing bolts are provided at ends of the pipe receiver 3 and the guard pipe 4 and a nut 11 integrated with the inner sleeve 5 is provided correspondingly. A nut 13 integrated with the hole 12 is provided correspondingly to the pipe 4 and the inner sleeve 5, and a bolt 6 passed through the holes 9, 10 as shown in FIG.
1 and a bolt (not shown) passed through the hole 12 in FIG.
Is fixed to the pipe receiver 3. Further, in this state, a step is formed in the connecting portion, and the end of the pipe 4 is also seen from the vehicle window, and the appearance is poor. Therefore, the cover plate 7 is attached to the exposed portion of the inner sleeve 5 to improve the appearance of the connecting portion. The cover plate 7 may be fixed to the upper part of the column 2 with bolts 8 as shown in FIG. 2, or the bolt 8 may be screwed to the inner sleeve 5 and fixed to the inner sleeve 5 as shown in FIG. May be.

When a guard pipe is damaged in any way, the detachable railing 1 constructed as described above has a guard pipe 4
Then, the cover plates 7 on both sides are removed, the bolts 6 are also removed, the inner sleeve 5 is operated at the position of the gap g, and the inner sleeve 5 is pulled out from the damaged guard pipe 4. Then replace the damaged guard pipe with a new guard pipe,
The exchange operation is completed through the reverse procedure. If the gap g is made longer than the length of insertion of the inner sleeve into the guard pipe 4, the guard pipe 4 is moved by using the gap without moving the inner sleeve.
However, in the illustrated row, the gap g was made smaller than the length of the inner sleeve inserted into the guard pipe so as to minimize deterioration of the appearance.

FIG. 5 shows an example in which the detachable railing 1 of the present invention is provided on the side wall 21 of the RC floor slab bridge. here,
The pitch between the supports is 2,000 mm, and the height H of the side wall 21 is 6
00 mm, the height H ₁ from the road surface to the upper end of the railing is ₁ , 1
1 and the gap g between the guard pipes of FIG. 1 was set to 50 mm, and a gap of 10 mm was provided between the cover plate 7 and the guard pipe 4 so as not to hinder the thermal expansion of the guard pipe. May be freely changed as needed.

The support column 2 is provided with a base plate 1a at a lower part, and the base plate 1a is an anchor bolt 1 planted on a side wall 21 or the like.
4 (see FIG. 2), it is easy to replace, but a type in which the lower part is buried in a side wall or the like can be considered.

The guard pipe 4 is not limited to a round pipe as shown, but may be a square pipe.

The gap g between the pipes may be provided at every other connecting portion. Since this is a form in which the pipe connection portions of FIG. 2 and the pipe connection portions of FIG. 8 are alternately arranged, the drawing is omitted. Even in this structure, the guard pipe can be shifted from the outside by shifting the guard pipe to the side where the gap g is provided, and the damaged guard pipe can be replaced without removing the other guard pipe without removing the other guard pipe. be able to.
In addition, this structure has an advantage that the number of use of the cover plates and the trouble of attaching and detaching the cover plates can be reduced to half.

FIG. 6 shows another embodiment of the present invention. In this row 1, a pipe receiver 3 provided on an upper portion of a column 2 is formed in a cylindrical shape, and an inner sleeve 5 is inserted into the pipe receiver 3, and the inner sleeve 5 is fixed to the pipe receiver 3 with bolts 6. Then, the ends of the inner sleeve 5 protruding from both sides of the pipe receiver 3 are inserted into the guard pipe 4, and the inner sleeve 5 is bolted (not shown) through the guard pipe 4 and screwed into the inner sleeve 5.
And the guard pipe 4 are fixed. In this case, a gap g for operating the inner sleeve is provided between the pipe receiver 3 and the left and right guard pipes 4 and, if necessary, a cover plate for covering the exposed portion of the inner sleeve 5 is also provided.

Inner sleeve 5 used in this structure
May be divided into two in the longitudinal direction. The two parts are connected via the pipe receiver 3, and there is no problem in connection.

FIG. 7 shows a guard pipe 4 provided with a slide-expandable pipe connecting portion 18 in the longitudinal direction. The connecting portion 18 is fixed by inserting a part of the inner sleeve 15 into one of the cut pipes 4a (the fixing may be performed irremovably), and the other end of the inner sleeve 15 is connected to the other pipe 4b. The pipe 4b is fixed to the inner sleeve 15 with bolts (not fixed) with a gap g1 provided between the pipes 4a and 4b. A half-dummy cover 16 having the same thickness as the pipe 4 is detachably attached to the position of the gap g1 with screws 17 screwed into the inner sleeve 15 so as to cover the exposed portion of the inner sleeve 15.

The guard pipe 4 provided with the connecting portion 14 is mounted horizontally between the columns. At this time, the guard pipes on both sides of the column are brought into close contact with each other on the pipe receiver of the column. When the guard pipe end is fixed on a pipe receiver as shown in FIG. 3, an inner pipe serving as a joint is used. When fixing to a tubular pipe receiver as shown in FIG. 6, the end of the guard pipe may be directly inserted and fixed inside the pipe receiver, in which case the inner pipe is unnecessary. Note that the gap g1 in FIG. 7 is set to be longer than the length of the inner sleeve inserted into the guard pipe end of the connection portion supported by the pipe receiver above the support or the length of the guard pipe end inserted into the tubular pipe receiver. By doing so, the dummy cover 16 can be removed, the length of the guard pipe 4 can be reduced by g1, and the pipe connected by the support can be cut off, and the damaged guard pipe can be easily replaced.

[0032]

As described above, in the detachable railing of the present invention, a gap necessary for the operation of moving the inner sleeve is provided between the guard pipes connected by the support portions of the columns, and as another method, A telescopic pipe connection is provided in the middle of the guard pipe so that the length of the pipe can be reduced, so it is possible to replace the damaged guard pipe by removing and inserting the inner sleeve without removing another guard pipe become.

In the case where a cover plate or a dummy cover is provided at a position where a gap is provided between the pipes so as to cover the exposed portion of the inner sleeve, deterioration of the appearance of the connection portion can be prevented.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of a railing according to the present invention;

FIG. 2 is a cross-sectional view of the railing above.

FIG. 3 is an exploded perspective view of main components.

FIG. 4 is a cross-sectional view of another embodiment.

FIG. 5 is a perspective view showing an example of use of a railing according to the present invention.

FIG. 6 is an exploded perspective view showing a main part of another embodiment.

FIG. 7 is an exploded perspective view of a guard pipe according to another embodiment.

FIG. 8 is a perspective view showing an outline of an RC floor slab bridge.

FIG. 9 is a perspective view of an RC floor bridge in which part of a side wall is replaced by a railing.

FIG. 10 is a side view of a railroad to be improved according to the present invention;

FIG. 11 is a cross-sectional view of the railing of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Detachable railing 2 Support 3 Pipe receiver 4 Guard pipe 5 Inner sleeve 6, 8 bolt 7 Cover plate 9, 10, 12 hole 11, 13 Nut 15 Inner sleeve 16 Dummy cover 18 Sliding telescopic pipe connection part g, g1 Gap

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Mitsuhiro Okada 10-25, Nakanoshinmachi, Shijonawate City Daito Metal Co., Ltd. (72) Inventor Shinjiro Hino 10-25, Nakanoshinmachi, Shijonawate City Daito Metal Company F-term ( Reference) 2D059 AA21 AA22 BB37 GG55 2D101 CA06 CB05 DA04 EA02 FA11 FA23 FB02 FB03 FB14

Claims (5)

[Claims] 1. A guard pipe is provided laterally between columns that are erected at predetermined intervals, and the guard pipe is connected in a longitudinal direction at a support portion of the column, and the connection is made between adjacent guard pipes. Insert the inner sleeve that forms the joint at the end, and fix the inner sleeve or the end of the guard pipe connected via the inner sleeve to the pipe support provided at the top of the column with bolts. A detachable railing with a clearance for operating the inner sleeve. 2. The pipe receiver is formed in a tubular shape, an inner sleeve is inserted into the pipe receiver and fixed, and a protruding portion of the inner sleeve from the pipe receiver is inserted into a guard pipe so that the pipe receiver can be inserted between the pipe receiver and the guard pipe. 2. A detachable railing according to claim 1, wherein a gap for operating the inner sleeve is provided on the upper surface. 3. The detachable railing according to claim 1, wherein a detachable cover plate for covering an exposed portion of the inner sleeve is provided in the installation portion of the gap. 4. A guard pipe is provided laterally between columns that are erected at predetermined intervals, and the guard pipe is connected in a longitudinal direction at a support portion of the column, and the connection is made between adjacent guard pipes. Insert the inner sleeve that forms the joint at the end, and fix the inner sleeve or the end of the guard pipe connected via the inner sleeve to the pipe receiver provided at the top of the column with bolts. A sliding telescopic pipe connection part having an inner sleeve as a joint is provided in the middle of the longitudinal direction, and the amount of contraction of the pipe at the connection part is made larger than the inner sleeve insertion amount with respect to the guard pipe end of the connection part supported by the column, and furthermore, A detachable railing constructed by putting on a removable dummy cover over the exposed inner sleeve of the pipe connection. 5. A guard pipe is provided laterally between columns that are erected at predetermined intervals, and the guard pipe is connected in a longitudinal direction at a support portion of the column, and the connection is provided at an upper portion of the column. Insert the guard pipe end into the tubular pipe receiver so that it can be pulled out and fix it, and at the middle of the length of the guard pipe, provide a sliding telescopic pipe connection with an inner sleeve as a joint, and reduce the amount of pipe shrinkage at the connection. A detachable railing having a length larger than an insertion length of a guard pipe end with respect to the pipe receiver, and further including a removable dummy cover over an exposed inner sleeve portion of the pipe connection portion.