JPH025215B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a telescopic walkway, and in particular to a telescopic walkway that is constructed or suspended between horizontal supporting members such as beams of a constructed object to enable workers to walk or perform various tasks. Concerning a walkway.

When constructing structures such as ships or buildings, walkways are constructed between horizontal supporting materials such as pieces that protrude from the ship's side and beams of buildings in order to secure so-called work scaffolding and walkways for workers. or suspended. For example, as shown in FIG. 1, this walkway consists of a pair of support girders 1 that are longer than the spacing between the horizontal supports, a plurality of single pipes 2 that are spanned between the support girders 1 at appropriate intervals, and A plurality of long scaffolding boards 3 placed on a single pipe 2, a plurality of supports 4 made of pipes or the like whose lower ends are fixed to the support girder 1 and protrude upward, and clamps 5 are attached to the supports 4. It consists of a handrail pipe 6 that is fixed during use and connects the support column 4 in a head joint shape. On the other hand, the distance between the horizontal supports for constructing this walkway is not constant and may be long or short, so the support girders 1 and scaffolding boards 3 that make up the walkway are at least larger than the distance between the horizontal supports. In addition, scaffolding boards 3 and support girders 1 members of various lengths must be prepared. Therefore, in order to obtain the desired walkway, it is necessary to prepare scaffolding boards 3 and girder members 1 of various lengths together with a large number of other pipe members, etc., and when storing them when not in use, it takes a large amount of space. It is uneconomical as it requires storage space. Furthermore, when assembling a desired walkway using these members, care must be taken since it is inconvenient to move the long scaffolding boards 3 and girder members 1, and the assembly work must be done at heights. However, the workability becomes extremely poor. Furthermore, once assembled, it is extremely difficult to relocate the walkway to another location in a factory with a small space, and there is also the inconvenience that the replacement work requires a great deal of labor and time.

In other words, the long scaffolding boards 3, etc. are so long that they cannot be carried by one person, and when multiple workers or cranes move them around in a narrow space, the long scaffolding boards 3 may collide with other building materials or structures. Moreover, it was difficult to change the direction of travel, and the task of changing the direction was extremely troublesome.

Therefore, the present invention makes it possible to provide a desired walkway without assembling work at the installation site using a large number of members, and also to easily replace the installed walkway. The purpose of this project is to provide a walkway that can be expanded and contracted.

In order to achieve this purpose, in a walkway that is constructed or suspended between horizontal supporting members such as beams of the structure of the present invention to allow workers to walk or carry out various tasks, the walkway has a main walkway and a main walkway. It consists of a sub-corridor that is attached to one end or both ends of the corridor so that it can be freely entered and exited, and the frame of the sub-corridor is attached along the frame of the main corridor, which has an opening inside along the longitudinal direction, so that its length can be freely adjusted. A scaffolding board is provided horizontally above, below or inside the frame of the main hallway, and a scaffolding board extending horizontally through the opening is provided on the frame of the sub-corridor, and Foldable handrails are attached to the frames of the main hallway and sub-corridor, and the second
The structure is such that the frame of the sub-corridor is held along the frame of the main corridor, which has an opening on the inside along the longitudinal direction, so that its length can be freely adjusted. Alternatively, a scaffolding board is provided horizontally on the inside, and a scaffolding board extending horizontally through the opening is provided in the frame of the sub-corridor.

Hereinafter, the present invention will be explained based on the drawings.

As shown in FIG. 2, the extendable walkway according to the present invention consists of a main walkway 10 and a sub-walkway 20, each with foldable handrails 30, 40.
have. And the sub-corridor 20 is the main corridor 10.
It is attached to one or both ends of the walkway so that it can be moved in and out, and the entire length of the walkway can be expanded or contracted as desired by moving in and out. The sub-corridor 20 may be of a sliding type or of a slidably inserted type, as long as it is assembled along the main hallway 10 to adjust its length.

The main hallway 10 includes a pair of frame members 11,
It consists of a horizontal scaffolding board 12 connected between the inner sides of this girder member 11, and the handrail 30 is attached to this girder member 11. As shown in FIG. 3, the girder member 11 is made of a vertically elongated substantially box-shaped material, and allows the girder member 21, which is the frame of the sub-corridor 20, to be inserted thereinto, and also allows the girder member 21, which is the frame body of the sub-corridor 20, to be inserted thereinto.
It is held so that it does not fall out in the outward direction. Moreover, this girder member 11 has an opening portion 1 along the longitudinal direction on the inner side facing the other girder members 11.
1', which allows the insertion of the scaffolding board 22 fixed to the girder member 21 of the sub-corridor 20 through this opening 11'. It has a support portion 11a that projects horizontally toward the girder member 11, and a scaffold board 12 is fixed to the support portion 11a. And girder member 1
A rising portion 11 is provided at the lower edge of the opening portion 11' of 1.
b is formed and the sub-corridor 20 slides inside.
The lower end of the girder member 21 is prevented from falling off from inside the girder member 11 of the main hallway 10 in the lateral and vertical directions, and the leg stiffening member 13 is fixed between the rising edges 11b to prevent the lower end of the girder member 11 This prevents the gap from expanding.

In addition, reinforcement parts 11 are provided at the upper and lower outer ends of the girder member 11.
c is formed, but the formation of the reinforcing part 11c is omitted when the outer body part 11d of the girder member 11 is formed to have sufficient self-supporting properties. Of course, it's good to have some. In addition, the inner opening portion 1 of the girder member 11
Support part 11 protrudingly formed on the upper edge of 1'
a is provided in a protruding manner to reinforce the inner body part 11e of the girder member 11, but if this inner body part 11e is formed to have sufficient self-supporting properties, The formation of the protrusion may be omitted. If the formation of the support portion 11a to protrude is omitted, it goes without saying that the scaffolding board 12 may be connected to the inside of the girder member 11 by using an appropriate connector.

Scaffolding board 12 for girder member 11 of main hallway 10
may be provided on the inside as shown in FIG. 3, but may also be provided on the upper or lower part of the girder member 11.

Furthermore, the scaffolding board 22 of the sub-corridor 21 may be located below the scaffolding board 12 of the main corridor, but as shown in FIG. The scaffolding board 13 provided on the girder member 21 of the sub-corridor 20 which is fixed to the girder member 11 and slid into the girder member 11 extends horizontally from the opening 11' and is positioned above the scaffolding board 12 of the main hallway 10. You may also do so.

The scaffolding board 12 laid in the main hallway 10 is formed into a panel shape made of a suitably thick metal plate, as shown in FIG. Anti-slip 1 protruding from the
It has 2a. Although the scaffolding board 12 is shaped like a metal panel in this embodiment, it may be replaced by a long scaffolding board made of plywood or the like. In short, it is sufficient that the main hallway 10 is constructed so that a walking path etc. for workers can be secured. Therefore, it goes without saying that the anti-slip 12a formed on the upper surface of the scaffold board 12 may also be formed in a dot shape or a mesh shape instead of the rib shape of the embodiment. However, if it is formed into a rib shape as in this embodiment, there is an advantage that the durability against bending of the upper surface of the scaffold board 12 can be increased.

In addition, the scaffolding board 12 in the present invention is
0, the top surface of one end is made into a curved surface part 12b as shown in FIG. In order to be able to lay down the scaffolding boards 12, 12' at the same time, a narrow adjustment scaffolding board 12'' as shown in FIG. 4C is used.

The scaffolding boards 12 are connected by rivets or bolts, and the scaffolding boards 12 and the girder members 11 are also connected by rivets or bolts.

The sub-corridor 20 consists of a pair of girder members 21 and a scaffold board 22 laid between the girder members 21, and by sliding the girder members 21 within the girder members 11 of the main hallway 10, The sub-corridor 20 can be moved in and out of the hallway 10, and a handrail 40 is attached to the girder member 21. As shown in FIGS. 2 and 3, this girder member 21 is made of an I-shaped material as a whole, and has a protrusion formed on the inner surface slightly below the center, that is, the side surface facing the other girder member 21. It has a support part 21a. A scaffold board 22 is fixed to this support portion 21a with rivets or the like. Further, reinforcing portions 21c are formed at the upper and lower outer ends of the girder member 21, and the reinforcing portions 21c are formed to such an extent that the central shaft portion 21f of the girder member 21 has sufficient self-supporting properties. Of course, when this is the case, the formation may be omitted. However, this reinforcement part 2
If formed, 1c serves as a guide when the girder member 21 is inserted into the girder member 11 of the main hallway 10, and has the advantage of ensuring the insertion.

Scaffolding board 22 laid in this sub-corridor 20
There is no difference in the main structure from the scaffolding board 12 installed in the main hallway 10 described above. That is, in its cross-sectional shape, there is no difference from that shown in FIG. It is only slightly longer than the length between the girder members 11 of the scaffolding board 12 in . A curved surface 12 as shown in FIG.
The only difference is that the scaffolding board 12' having the shape b is not used, and only a narrow adjustment scaffolding board 22'' as shown in FIG. 4c is used.

Note that a pipe 23 with a corrugated cross section is interposed between the ends of the sub-corridor 20, that is, between the ends of the girder members 21, to prevent the girder members 21 from expanding laterally, and to It serves as a handle for pulling out the sub-corridor 20 by a desired length from the main corridor 10 (see FIGS. 2 and 3).

Therefore, the girder member 21 of the sub-corridor 20 is connected to the main corridor 10.
If the girder member 21 of the sub-corridor 20 is pushed into the girder member 11 of the main hallway 10, the length of the entire hallway will be increased. This results in a shorter walkway, allowing the walkway to be expanded and contracted.

The handrail 30 attached to the main hallway 10 is
As shown in the figure and the right side of Figure 5, the girder member 1
A column 31 whose lower end is foldably supported by 1
and the cross member 3 held in a head joint shape on this support 31.
It consists of 2. The handrail 40 attached to the sub-corridor 20 also has a column 41 whose lower end is foldably supported by the girder member 21 and is held by the column 41, as shown on the left side of FIGS. 2 and 5. The handrail cross member 42 is connected at its end to the handrail cross member 32 of the main hallway 10 so that it can be moved in and out.

The struts 31 and 41 are connected to the outer body portion 11d of the girder member 11 or the central shaft portion 21f of the girder member 21, respectively.
The lower end portion is inserted into the sockets 33, 43 fixed to the sockets 33, 4.
3 has tension holes 33', 43' formed in the vertical direction, and pins 3 formed at the lower end portions of each support column 31 and 41 are inserted into the respective elongated holes 33', 43'.
4 and 44 are inserted. Therefore, each pillar 31,
41 is pulled up so that its pins 34 and 44 are attached to the elongated holes 33' and 43', and each support column 3
The lower ends of the columns 1 and 41 are removed from the sockets 33 and 43, and as shown in FIG. 6, each support column 31 and 41 rotates around its pin 34 and 44 and is folded in the longitudinal direction of the hallway.

Further, the cross members 32 and 42 are made of round pipes,
It is held by clamps 35, 45 which are pivotally attached to the respective pillars 31, 41 in two stages, upper and lower. The clamps 34 and 44 are connected to wing bolts 36 and 4, respectively.
6, and by tightening these butterfly bolts 36, 46, the cross members 32, 42 inserted into the clamps 34, 44 are fixed. Note that the handrail cross member 42 of the handrail 40 of the sub-corridor 20 is to be inserted into the handrail cross member 32 of the handrail 30 of the main hallway 10, and the outer diameter of the cross member 42 is smaller than the inner diameter of the cross member 32. Of course, it is considered small. Therefore, when the columns 31, 41 are raised slightly and then folded down, the lattice-shaped handrails 30, 40 consisting of the columns 31, 41 and the cross members 32, 42 are
It will take on the shape of a parallelogram and be folded in the longitudinal direction of the walkway. In addition, the handrail 40 of the sub-corridor 20
When folding the support column 41, the horizontal member 42
can be pulled out from the clamp 44, separated from the support column 41, and folded; in this case, the cross member 4
2 can be stored by being pushed into the cross member 32 of the handrail 30 of the main hallway 10.

In addition, the supports 31, 41 in each handrail 30, 40
The cross-sectional shapes of the cross members 32 and 42 can be arbitrary. In short, the pillars 31 and 41 are the girder members 1
1 and 21 so that the cross members 32 and 42 can be folded freely.
1, 41 and is rotatably held by one side member 3.
2 and the other cross member 42 are such that their lengths can be expanded and contracted between them. In addition, the pillar 31,
41 may be detachably held on the girder members 11, 21 by using bolts and nuts, and may also be folded and held automatically by loosening the nuts.

In addition, in the hallway of the above-described embodiment, a single-stage sub-corridor 20 is provided at one end or both ends of the main hallway 10 so as to be freely accessible. However, the multi-stage sub-corridor 20 may be provided in series at one end or both ends of the main hallway 10 so as to be freely accessible.

FIG. 7 shows a retractable walkway according to another embodiment of the present invention, but whereas the walkway according to the above-mentioned embodiment has a handrail that is foldable in the longitudinal direction of the walkway, this embodiment The hallway according to the embodiment is different in that the handrail is formed so as to be foldable in the short direction of the hallway.

That is, in the hallway according to this example,
A sub-corridor 20 is attached to both ends of the main corridor 10 so as to be freely accessible, and by moving the sub-corridor 20 in and out of the main corridor 10, the length of the entire corridor can be expanded and contracted. The main hallway 10 has a scaffold board 12 between a pair of girder members 11, and the sub-corridor 20 has a scaffold board 22 between a pair of girder members 21, and the girder member 21 is connected to the girder member 11 of the main hallway 10. It is inserted into the body so that it can be freely moved in and out. Furthermore, a handrail 30 and a handrail 40 are attached to the main hallway 10 and the sub-corridor 20, respectively. The handrail 30 is configured such that a frame body is formed by integrally connecting a cross member 32 to a column 31 whose lower end is foldably attached to the beam member 11. 11
It is inserted in a socket 33 fixed to the. When the handrail 30 is lifted upward so as to raise the lower end of the column 31, it can be placed on the scaffolding board 12 of the main hallway 10, that is, folded in the short direction of the hallway. A lower end of a column 31 and a socket 33 are formed. In addition, the handrail 40 of the sub-corridor 20
, a support 41 whose lower end is foldably attached to the girder member 21 holds an extensible cross member 42 such as a chain, and the lower end of the support 41 is attached to a socket 33 fixed to the girder member 21. is interposed in. The cross member 42 has one end locked to the support column 41 and the other end connected to the end of the handrail 30 of the main hallway 10.

Therefore, if the sub-corridor 20 is entered or exited from the end of the main hallway 10, the entire length of the hallway can be expanded or contracted, and if the handrail 30 is pulled up, it can be stacked on the scaffolding board 12 of the main hallway 30. It can be folded.

In this embodiment, the cross member 32 of the handrail 30 of the main hallway 10 is made of a material that does not have elasticity itself, but it is also possible to use a highly elastic cross member 32 such as a chain instead. Of course. Further, the structures of the girder members 11, 21 and the scaffolding boards 12, 22 are the same as those of the girder members 11, 21 and the scaffolding boards 12, 22 in the embodiment shown in FIG. 2 described above.

The extendable walkway according to the present invention configured as described above is utilized in the following manner.

That is, when in use, it is moved to the desired installation location using a crane, etc., and placed on the horizontal support of the structure, for example, on a piece protruding from the belly of a ship, or on a beam for a building. main hallway 10
The walkway can be bridged by placing the ends of the sub-walkway 20 extended from the ground, or both ends of the sub-walkway 20 can be bridged with a chain or the like hung on a horizontal support member such as a piece or a beam. The walkway will be spanned by suspending it. When moving with a crane or the like, it is preferable to push the sub-corridor 20 into the main corridor 10 so that the overall length is shortened. Hallway 20 is main hallway 1
It is sufficient as long as it does not slip out from within 0.

In the present invention, as shown in FIG. 3, pins 14 passing through the girder members 11 of the main hallway and the girder members 21 of the sub-corridor 20 are used to prevent the sub-corridor 20 from slipping out of the main hallway 10. There is. This pin 1
4 has a bendable front end and a bent rear end to facilitate the penetrating operation into the girder members 11 and 21 and to prevent them from falling off. In addition, when positioning the walkway at a desired position, while the walkway is suspended by a crane or the like, the sub-walkway 20 is extended to the main walkway by the required length.
The pin 14 is pulled out from zero and passed through the girder members 11 and 21 again so as to maintain its length. Therefore, as shown in FIG.
5 are perforated in each case.

In addition, when lifting this walkway with a crane or the like and moving it to a desired installation location, the handrails 30, 4
Of course, each 0 is folded.
After it is placed at the desired installation location, the handrails 30, 40 are pulled up, and each support column 31,
By pushing downwardly so that the lower ends of 41 fit into the respective sockets 33, 43, it is possible to provide the desired handrail in the walkway. Also, when performing refilling work, use the handrails 30 and 4.
0, the lower ends of the pillars 31, 41 are the sockets 33,
By pushing it upward so that it is pulled out from inside the walkway and folding it in the lengthwise or widthwise direction of the walkway, it can be made compact, so it can be easily replaced.

By constructing a walkway between horizontal supports such as beams as described above, it can be used for workers to walk, and it also provides a so-called work scaffold for various operations on buildings, etc. This means that you can do it.
When constructing this walkway over beams, etc., it may be possible to simply place it on top of the beams, but if the horizontal support material etc. sways, the walkway may fall, which is extremely dangerous. . Therefore, it is desirable that the end of this walkway be fixed on the horizontal support member by any means, but in this embodiment, a fixing device 50 as shown in FIG. 8 is used. be.

That is, the ends of the extendable walkway according to the present invention are held by a fixing device 50 that is detachably fixed to a horizontal support member such as a beam. This fixing device 50 includes a plurality of clamps 51 that are detachably fixed to a horizontal support member, bolts 52 that protrude from the clamps 51, and bolts 52 that are protruded from the clamps 51.
2, and a clip 54 which is held by the plate 53 and clamps the lower end of the girder member 21 of the sub-corridor 20. The plate 53 is provided with an elongated hole through which the insertion point of the bolt 52 can be arbitrarily selected. Further, this fixing device 50 is configured to fix the lower ends of each of the pair of girder members 21 of the sub-corridor 20 on the horizontal support member, and each fixing device 50
Since the width of the sub-corridor 20 is preset, a spacer 5 is inserted between both fixing devices 50 to match the width.
5 and is integrally constructed.

Therefore, by fixing the above-described fixing device 50 at a predetermined position on the horizontal support material in advance, the end of the sub-aisle 20 of the walkway that is moved by a crane or the like can be easily fixed onto the horizontal support material. becomes.

In addition, when using the extendable walkway according to the present invention, a plurality of walkways are prepared, and the end of the sub-walkway 20 of one walkway is connected to the end of the sub-walkway 20 of the other walkway using fittings, etc. as appropriate. Alternatively, a bracket or the like may be provided in the middle of the main hallway 10 of one of the hallways, and the end of the sub-corridor 20 of the other hallway may be connected to the bracket as appropriate. Connect with tools,
Even when there is no other supporting material between the horizontal supporting members, the walkway may be made to be able to be extended vertically and horizontally.

As described above, according to the extendable walkway according to the present invention, when installing the walkway at a desired installation location, it is possible to prepare multiple members of different lengths and to install using the multiple members. A desired walkway can be provided without requiring on-site assembly work. As a result, it is possible to omit preliminary work such as ordering multiple parts for installing a walkway, storing them, and setting up assembly work, and it is also possible to save labor and time for assembling the walkway. , it is possible to shorten the construction period of the object to be constructed, reduce the cost required for construction, etc. Also,
The overall length of the walkway can be shortened and the handrails can be folded up, making it more compact when it is being lifted and moved by a crane, etc., or when being stacked or transported when not in use. This also has the effect of making it easier to lift with a crane, accumulate and transport when not in use.
Furthermore, a desired walkway can be provided regardless of the distance between the horizontal supports, and by using appropriate connectors, it is possible to connect multiple walkways and make them even longer. A walkway can also be provided, which has the advantage of making it easy and reliable to secure a walking path for workers and a so-called work scaffold.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view showing a conventional temporary walkway;
The figure is a perspective view partially showing a telescopic walkway according to the present invention, FIG. 4C is a vertical cross-sectional view showing a scaffold board according to another embodiment, FIG. 5 is a vertical cross-sectional view showing a handrail together with a main hallway and a sub-corridor, and FIG. 6 is a vertical cross-sectional view showing the handrail in its erected and operating state. FIG. 7 is a perspective view showing a telescopic walkway according to another embodiment of the present invention, and FIG. 8 is a partial perspective view showing a fixing device for fixing the walkway according to the present invention on a horizontal support member. 9 are partially cutaway vertical sectional views of a walkway according to another embodiment. 10...Main corridor, 20...Sub-corridor, 30,40
... Handrail, 11, 21 ... Girder member, 12, 22 ...
...Scaffolding board, 31, 41... Support, 32, 42...
Crosspiece.

Claims (1)

[Scope of Claims] 1. In a walkway that is constructed or suspended between horizontal supporting members such as beams of a structure to allow workers to walk or perform various tasks, the walkway includes a main walkway and one end of the main walkway. Alternatively, the frame body of the sub-corridor is held along the frame body of the main corridor, which has an opening on the inside along the longitudinal direction, so that its length can be freely adjusted. A scaffolding board is provided horizontally above, below, or inside the frame of the main hallway, and a scaffolding board extending horizontally through the opening is provided on the frame of the sub-corridor, and the main hallway and This is an extensible hallway with a collapsible handrail attached to the frame of the side hallway. 2. The handrails attached to the main hallway and the sub-corridor are each made of foldable pillars that hold the cross members, and the handrail cross members held by the pillars of the sub-corridor are attached to the handrail cross members of the main hallway. A telescopic walkway according to claim 1, which is arranged in a row so as to be freely accessible. 3. The handrail attached to the main hallway consists of a frame with horizontal members connected to the main column that is erected so that it can be folded freely, and the handrail that is attached to the side hallway is made of a frame that is connected to a column that is erected so that it can be folded freely. 2. The extendable walkway according to claim 1, wherein the handrail of the main walkway is connected to the handrail of the main walkway so as to be extendable and retractable. 4 The main hallway and the sub-corridor each have a scaffold board laid down, and the scaffold board in the sub-corridor is arranged above or below the scaffold board in the main hallway so that its length can be adjusted freely. The telescopic walkway described in paragraph 1. 5 Consisting of a main hallway and a sub-corridor attached to one or both ends of the main hallway, the length of which can be adjusted freely, the frame of the sub-corridor is attached to the frame of the main hallway with an opening inside along the longitudinal direction. Scaffolding boards are installed horizontally on the top, bottom, or inside of the frame of the main hallway, and the frame of the secondary hallway is held horizontally through the opening. A telescopic walkway with extending scaffolding boards. 6 The frame of the sub-corridor is above the frame of the main corridor,
6. The telescopic walkway according to claim 5, wherein the walkway is prevented from coming off in the downward or lateral direction. 7. The telescoping hallway according to claim 5, wherein the scaffolding board of the main hallway is located above the scaffolding board of the auxiliary hallway. 8. The telescopic walkway according to claim 5, wherein the scaffolding boards of the main walkway are located below the scaffolding boards of the sub-aisle. 9. The telescopic walkway according to claim 5, wherein the frame of the main walkway is box-shaped.