JP2588614Y2 - Telescopic handrails in telescopic walkways - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workable telescopic walkway which is installed between horizontal supports such as beams of a building.

[0002]

2. Description of the Related Art When constructing a building such as a middle-high-rise building, as a work scaffold passage, a scaffold plate or a single pipe has conventionally been used to assemble a work. In this case, various types of members must be prepared according to the width of the erection place, a large space is required to store when not in use, and an inspection is required to confirm safety during assembly. In addition to being laborious, disassembly is troublesome and requires high-altitude work, resulting in poor workability.

[0003] In recent years, scaffolding devices (walkways) having a passage portion and a handrail portion, which are formed to be stretchable and foldable, have been disclosed in Japanese Patent Publication Nos. 2-5215 and 2-17081.
It is proposed as in Japanese Utility Model Publication No. 2-17084.

FIG. 5 schematically shows a main corridor 1 and a sub-corridor 2 provided at one or both ends of the main corridor 1 so as to be able to enter and exit. The main corridor 1 is provided with a pair of spar members 3 serving as frames along the longitudinal direction, and a scaffold plate 4 is horizontally provided between the insides of the spar members 3. A handrail 5 is attached to the main corridor 1. The handrail 5 has a lower end of a support 5a that can be folded. As shown in FIG. 6, the beam member 3 is a channel-shaped member formed of a C-shaped member having an opening 6 inside.

On the other hand, the sub-corridor 2 has a pair of girder members 7 on the left and right sides of the main corridor 1 and a scaffold plate 8 is laid between the girder members 7. It is an I-shaped member that is slidably inserted inside. In the figure, reference numeral 9 denotes a leg fixing member for connecting a lower portion between the beam members 3. This side corridor 2
Also, the column 5a is provided so that its lower end can be freely folded.

In this manner, the girder member 3 of the main corridor 1 holds the girder member 7 of the sub-corridor 2 so that the length thereof can be freely adjusted. Then, the column 5a of the folded handrail 5 is raised, and is laid over a horizontal support of the object to be built, for example, a beam in the case of a building.

[0007] Then, the column 5a of the sub-course 2 pulled out is also raised, and in the example shown in the figure, a chain 25 or the like is laid so as to close an opening between the column 5a of the handrail 5 at the end of the main corridor 1. ing.

[0008]

[Problem to be solved by the invention] Chain 25
The support 5a of the handrail 5 on the side of the main corridor 1 and the support 5 of the side rail 2
The connection with a is incomplete as a handrail and gives anxiety. Also, when not in use, it is troublesome to store the chain 25.

Although not shown, the above-mentioned Japanese Patent Publication No. 2-52
In the gazette of No. 15, as another embodiment, a horizontal member is provided on a support of a handrail, and the horizontal member is formed of a round pipe, and each support is held by a clamp which is pivotally connected to the upper and lower two stages. Fix the cross member to be inserted through the clamp by tightening the wing bolts of the sub-corridor, and to insert the cross member of the sub-railway handrail into the main-rail handrail cross-member. It is stated that a clamp for fixing the cross member of the handrail of the side walkway is pivotally mounted on the column.

[0010] In this manner, the side material of the sub-railway is pulled out from the handrail of the main corridor, inserted into the clamp of the handrail post on the sub-gallery side, and the wing bolt of the clamp is tightened.

However, even in this method, the horizontal members of the handrails in the sub-corridor must be pulled out one by one from the upper and lower stages one by one and inserted into the respective clamps to tighten and fix the wing bolts, which is troublesome.

In addition, if there is no locking means, there is a possibility that the handrails of the sub-corridor, which is inserted into the handrails of the main corridor, will not be able to be pulled out without using the locking means. .

SUMMARY OF THE INVENTION An object of the present invention is to overcome the disadvantages of the prior art, and to provide a telescopic handrail of a telescopic walkway in which a horizontal member can be easily and reliably installed between a main rail handrail support and a sub-rail handrail support. Is to provide.

[0014]

SUMMARY OF THE INVENTION The present invention achieves the above object by providing a structure between a main girder member and a sub-girder member.
Scaffolding boards are provided so as to be vertically positioned with respect to each other, and the girder members of the main corridor are arranged along the girder members of the main corridor so that the length of the girder members can be adjusted freely. In a telescopic corridor in which the main corridor and the sub corridor are provided with collapsible handrails whose lower ends can be freely folded in the width direction, the sub-corridor is provided in upper and lower horizontal members provided on the main corridor-side handrail props. Insert the side rail of the side handrail,
The side members of the upper and lower steps of the handrail on the side of the sub-course are connected to each other near the ends with vertical members, and a foldable post provided on the side of the sub-course has a socket part into which the end of the side member on the side of the sub-course is inserted. A short tube is provided in the upper and lower stages, and an insertion hole is formed in the upper cross member end of the sub-walkway side and a short tube as an upper socket portion into which the cross member is inserted, and these insertion holes are aligned. The gist of the present invention is to insert a fixing pin in a detachable manner.

[0015]

According to the present invention, the side members of the handrails of the sub-course are connected to each other near the ends with vertical members, and the upper and lower steps are integrated. It can be pulled out from the handrail crosspiece. In addition, since there is this vertical member, this serves as a stopper, and there is no possibility that the horizontal member of the handrail of the sub-corridor will enter deeply into the horizontal member of the handrail on the side of the main corridor and cannot be pulled out.

Further, the drawn out side material of the handrail of the sub-course is stably supported only by inserting its tip into a short pipe as a socket portion provided on a post on the side of the sub-course. There is no trouble that the wing bolt has to be inserted and screwed and fixed.

Further, by inserting the fixing pin in a detachable manner, the handrail can be easily and firmly assembled in a lattice shape. In particular, the insertion holes through which the fixing pins are removably inserted are provided only at the upper end of the cross member located at the top and bottom of the side walkway side and the short tube into which this cross member is inserted. Since only one place is required for attaching and detaching the work, the labor can be further reduced, and since the cross member on the upper part where the worker can be grasped as a handrail is fixed, the stability can be ensured.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing one embodiment of the telescopic handrail of the telescopic walkway according to the present invention, FIG. 2 is a plan view of the telescopic walkway, FIG. 3 is a side view of the entire telescopic walkway, and FIG. In the figure, the same components as those in FIGS. 5 and 6 showing the conventional example are denoted by the same reference numerals.

First, as a whole, as shown in FIGS. 3 and 4, the telescopic corridor of the present invention also has a main corridor 1 and a sub-corridor which is provided at one or both ends of the main corridor 1 as in the prior art. Consists of two. The main corridor 1 is provided with a pair of spar members 3 serving as frames along the longitudinal direction, and a scaffold plate 4 is horizontally provided between the insides of the spar members 3. And
A handrail 5 is attached to the main corridor 1, and the handrail 5 is the same as the conventional example in that the lower end of the column 5a is freely foldable.

The present invention is a channel-shaped member having a U-shaped cross section, in which an opening 6 is provided on the inside of the beam member 3 using an aluminum alloy profile. Further, this girder member 3
Has an upper portion having the U-shaped cross section and a lower portion having a substantially U-shaped cross section extending downwardly on the outer side of the upper portion opposite to the side where the opening 6 is formed and having an opening on the outer side. An inner opening is interposed between the lower portions. The lower extending portion 10 was bent inward, and the inner surface was formed into a flange shape having a substantially U-shaped cross section to form a support portion 11 on the side edge of the scaffold plate 4. The extended portion 10 is formed in a channel shape having an open outer surface opposite to the support portion 11 in order to have strength. In the figure, reference numeral 9 denotes a leg fixing member for connecting the extending portions 10 of the left and right beam members 3.

An aluminum alloy profile is also used for the girder member 7 of the sub-corridor 2, and a channel-shaped member having a substantially U-shaped cross section with an outer side surface serving as an opening 12 has an upper end formed into an outwardly hooked shape 13. It is formed so as to cover the upper end of the girder member 3 of the main walkway 1. The upper surface of the girder member 3 has a ridge in the length direction.
15 are provided at appropriate intervals, and the girder member 3 is brought into contact with the inside of the hook 13 of the girder member 7 via the ridge 15.

Further, the lower end of the spar member 7 has a substantially inverted T-shape including a flange portion 14a projecting inward and a flange portion 14b projecting outward, and the flange portion 14a supports a side edge of the scaffold plate 8. Further, the flange portion 14b has an upward rib 14c formed at the tip thereof, which is attached to the inside opening of the girder member 3 of the main walkway 1 and is brought into contact with the lower surface of the upper part of the girder member 3.

The scaffold plate 4 and the scaffold plate 8 to be bridged between the left and right spar members 3 and between the spar members 7 are both made of aluminum plates with ribs. The positions are in a vertical relationship with each other, but by forming the support portion 11 on the extending portion 10 of the girder member 3 as described above, it can be made as close as possible.

The folding mechanism at the lower end of the support 5a of the handrail 5 will be described. The support 5a is formed of a square pipe made of an aluminum alloy. A longitudinal slit 17 is formed on the side of the socket 16. Then, while inserting the lower end of the support 5a into the socket 16,
A pin 18 projecting from the side was engaged with the slit 17.
A notch opening 19 is provided in the upper part of the socket 16 to allow the column 5a to fall down.

The socket 16 is fixed to the girder member 3 with bolts and nuts, and a spacing plate 20 is interposed between the girder members 7 so that a space for the hook 13 at the upper end of the girder member 7 can be secured.

The supporting members 5a of the handrail 5 are provided with upper and lower cross members 21 each made of an aluminum alloy square pipe to form a lattice. Then, with the lattice member located at the end of the main corridor 1, the cross member 22 of the handrail on the side of the sub-course 2 is inserted into the cross member 21, and this cross member 22 is mutually connected by the vertical member 23 near the end. Link.

Similarly, the socket 16 is provided on the side of the girder member 7 of the sub-corridor 2, and the column 5a is foldably engaged with the column 5a. As the socket portions 24a and 24b into which the ends of the cross members 22 are inserted, short tubes having the same shape as the cross members 21 on the side of the main walkway 1 are provided in upper and lower stages.

The end of the upper cross member 22 on the side of the side walkway 2 and this cross member 22
Insert holes 26a and 26b
A fixing pin 27 which is removably inserted into the insertion holes 26a and 26b is suspended from the vertical member 23 by a chain 28.

In this manner, the girder member 7 of the sub-course 2 is held outside the girder member 3 of the main corridor 1 so as to be adjustable in length. It is set to a desired length, and it is laid over a horizontal support member of the building, for example, on a beam in the case of a building.

At this time, both the girder member 3 and the girder member 7 are in the form of a channel having openings 6 and 12 on the sides opposite to each other. The lower surface of the girder member 3 is joined to the girder member 7 through the ridge 15 and the lower end of the girder member 7 has an upwardly projecting rib 14b at the end of the flange portion 14b protruding outward.
Since it is only joined to the contact c, the surface contact portion is small, and the frictional resistance at the time of sliding is small. Although not shown, plate rollers may be mounted on the upper surface of the upper end of the girder member 3 and the lower surface of the upper end of the girder member 7, respectively.

After the required length of the sub-corridor 2 has been pulled out, the column 5a of the folded handrail 5 of the main corridor 1 and the sub-corridor 2 is raised and erected. Pulls this out from the inside of the cross member 21 on the side of the main walkway 1 in a sliding door type,
The tip is inserted into the socket portions 24a, 24b of the column 5a on the side of the sub-corridor 2. At this time, since the horizontal members 22 are connected to each other near the ends by the vertical members 23 near the ends, the horizontal members 22 can be integrally pulled out.

Further, since the insertion holes 26a and 26b match each other, the socket 24a and the tip of the cross member 22 inserted therein are fixed by inserting the fixing pins 27 therein.

[0033]

As described above, the telescopic handrails of the telescopic corridor of the present invention are provided with scaffolding plates between the girder members of the main corridor and between the girder members of the sub-corridor so as to be mutually vertically positioned. The length of the girder member of the sub-course is freely adjusted along the girder member of the main corridor, and a sub-course is attached to one or both ends of the main corridor so that the lower end of the main corridor and the sub-course can extend in the width direction. In a telescopic walkway provided with freely foldable handrails composed of foldable supports, a horizontal member can be easily and reliably installed between the handrail supports of the main walkway and the handrails of the auxiliary walkway. .

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a telescopic handrail of a telescopic walkway of the present invention.

FIG. 2 is a plan view showing one embodiment of the telescopic handrail of the telescopic walkway of the present invention.

FIG. 3 is an overall side view of the telescopic walkway provided with the telescopic handrail of the present invention.

FIG. 4 is a vertical sectional front view of a main part of a telescopic walkway provided with a telescopic handrail according to the present invention.

FIG. 5 is a perspective view showing a conventional example.

FIG. 6 is a longitudinal sectional side view of a main part showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main corridor 2 ... Sub-corridor 3 ... Girder member 4 ... Scaffold plate 5 ... Handrail 5a ... Strut 6 ... Opening 7 ... Girder member 7a ... Flange 8 ... Scaffold plate 9 ... Leg fixing member 10 ... Extension part 11 ... Bearing Part 12 ... Opening 13 ... Hook-shaped 14a, 14b ... Flange 14c ... Rib 15 ... Protrusion 16 ... Socket 17 ... Slit 18 ... Pin 19 ... Notch opening 20 ... Spacing plate 21 ... Horizontal member 22 ... Horizontal member 23 … Vertical member 24a… socket part 24b… socket part 25… chain 26a, 26b… insertion hole 27… fixed pin 28… chain

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A Sho 63-179354 (JP, U) JP-A 4-72132 (JP, U) JP-A 4-120846 (JP, U) JP 2-JP 5215 (JP, B2) Jiko 58-748 (JP, Y2) Jiko 56-34126 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04G 1/15 E04G 1 / 26

Claims (1)

(57) [Scope of request for utility model registration] 1. A scaffolding plate is provided between the girder members of the main corridor and the girder members of the sub-course so as to be vertically positioned relative to each other, and the length of the girder member of the sub-course is adjusted to the girder member of the main corridor. A telescoping type, which is provided with a sub-course at one or both ends of the main corridor so that it can freely enter and exit, and the main corridor and the sub-course are provided with collapsible handrails composed of struts whose lower ends can be folded in the width direction. In the side corridor, the horizontal members of the sub-railway handrails are inserted into the horizontal members of the upper and lower steps provided in the main corridor side rail support. In addition to the above, the collapsible supports provided on the sub-course side are provided with short pipes in upper and lower stages as socket portions into which the cross-member ends on the sub-course side are inserted, and the upper cross member ends on the sub-course side And an insertion hole in the short tube as the upper socket part where this cross member is inserted A telescopic handrail of a telescopic walkway, characterized in that a fixing pin is removably inserted by matching these insertion holes.