SU1416638A1 - Mobile scaffold - Google Patents

Abstract

This invention relates to scaffolding for masonry walls. The purpose of the invention is the expansion of operational capabilities. The scaffolds comprise a supporting frame 1, a working platform 2 and a supporting structure 3 with a lifting platform of the working platform 2. The working platform 2 is cantileverly attached to the supporting structure 3 and provided with a forked fastener 19 attached to it. The working platform 2 is made of a composite of hingedly connected sections, outer of which is installed with the possibility of rotation in the vertical plane. Transverse, elements of the support frame 1 are articulated. Scaffoldings are equipped with a manual drive movement in the form of a ratchet mechanism. 1 hp f-ly, 8 ill. (L with O5 Od 00 00

Description

figure 1

The image refers to scaffolding for masonry walls.

The purpose of the invention is the expansion of operational capabilities.

FIG. 1 - scaffolding in working condition, general view; in fig. 2 is the same side view (from the side of the forks for lifting materials) J in FIG. 3 - the same, top view; in fig. 4 - section A-A in FIG. 1; in fig. 5 is a view B in FIG. 2; in fig. 6 shows the scaffolding in the transport state, front view; FIG. 7 - the same, side view; in fig. 8 - the same, top view.

The scaffolding has a support frame 1, a working platform 2 and a supporting structure 3 with a mechanism for lifting the working platform 2.

The support frame 1 includes, in this case, a rear part 4, which is mainly made of pipes, which rests on two running wheels 5, and a front part 6, which rests on two travel wheels 7. The rear part of the support frame carries a support structure 3, which is in this case, in the form of two vertical channels welded to the horizontal pipe of part 4, in a vertical transport position. The frame 17 of the working platform 2 is covered with a wooden deck 18, and in its

the end carries a fork 19 for picking up and lifting pallets with stones to be laid in the walls, etc. materials.

With a working horizontal position of the working platform 2, the rigidity of the hinge joint 20 is provided, for example, by pushing a scaffold through the pipes 21 of the frame and through the pipes 22 welded to the pipe 12,

auxiliary pipe several smaller diameter, eliminating deflection in the hinge.

The support frame itself 1 includes, in addition to the rear longitudinal pipe of part 4 and

front longitudinal pipe part b with welded to the pipe part 4 by nozzles 23 and 24, hinged connecting links 25 and 26, connecting pipes - the front part 6 and the rear part

4. Link 25 and 26 can be found in. straightened working condition, providing, with the help of auxiliary folding braces or pipes, a rigid connection between the pipes of parts 4 and 6 with

than between the channels of power takes 30 their working distance, or

screw 8, driven in rotation by the electric motor 9 through the V-belt transmission 10.

The nut 11 is attached to the screw 8 and is connected with the horizontal power pipe 12, c fitting into the set passage gabag

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the working platform 2; To the pipe 12 through intermediate rigidly attached, for example, by welding, nozzles 13 and other elements are fixed to the axes of horizontal rollers 14, rolling out along the channels of the supporting structure 3, as well as rollers 15, rolling along the channels from the inside, and rollers 16, rolling on channels outside, JC

In general, all these rollers transmit bending load from the working platform 2 to the supporting structure 3, which in turn transfers them to the supporting frame 1. To the screw 8, only vertical loads are transmitted through the nut 11c of the working platform 2, tensile screw and compressive support structure channel bars.

The elements of the tubular frame 17 of the working platform 2 are hinged to the power pipe 12 with the possibility of the working platform 2 in the working horizontal position or in

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rites that allow it to roll through doorways.

The ratchet mechanism of the traveling wheels includes a long articulated arm 27, set with its lower tip. 28 on the wheel axle 29, on which both the arm and the wheel itself rotate freely. At the lower end of the tip 28 of the handle there is a ratchet-type pawl 30, capable of interacting with the teeth of the ratchet crown 31 that is on the wheel 5 to drive the wheel to rotate and move through this platform.

The articulation 32 of the upper part of the arm 27 with its lower tip allows the upper part of the arm to bend to a position close to the horizontal and twist the entire wheel 5, acting horizontally, on the arm around the vertical mounting pin.

be brought into a folded state, in which the pipes of parts 4 and 6 approach each other and the width of the entire movable platform decreases, sec

C

0

five

rites that allow it to roll through doorways.

The ratchet mechanism of the traveling wheels includes a long articulated arm 27, set with its lower tip. 28 on the wheel axle 29, on which both the arm and the wheel itself rotate freely. At the lower end of the tip 28 of the handle there is a ratchet-type pawl 30, capable of interacting with the teeth of the ratchet crown 31, which is provided on the wheel 5 to drive the wheel to rotate and move through this platform.

The articulation 32 of the upper part of the arm 27 with its lower tip allows the upper part of the arm to bend to a position close to the horizontal and twist the entire wheel 5, acting horizontally, on the arm around the vertical mounting pin.

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wheel holder to the console 33 pipe part 4 of the frame.

On the base frame, the stirrup 34 is also strengthened for raising to the platform at any height position.

The device works as follows.

After the tool and all-binding materials are lowered to the lowered work platform 2, its fork grab 19 is loaded with wall stones laid on the pallet, and the loaded pallet can be brought and placed on the forks with an auxiliary carriage, or vice versa, pick it up with a fork, and put them under its flooring and lightly raise the scaffolding.

If the mobile platform is still not standing against the wall (shown by the dotted line in the drawing), on which the works are to be performed, the scaffolding rolls toward it, using the handles 27 of the ratcheting mechanisms of the two wheels 5. At the same time, the other two wheels 7 that have a rotor mount unfolding to follow the trajectory set by the mobile platform by turning the wheels 5.

The worker then stands on the work platform 2 and from there, with buttons, he controls the lifting of the platform with him and the materials supported on the forks up to the level most convenient for work. The laying of stones on the wall can be done by one or two Workers, for whom there is enough space on the working platform. If it is necessary to move the scaffold horizontally along the interfloor overlap (or ground), the worker can lower the work platform 2 or, not lower it, descend down the slide 34 to move the scaffold, affecting the grips 27 of the ratchet devices.

In the process of laying stones on the wall, a worker, one hundred on the working platform 2, takes the stones from the package that is on the pallet, lifted with a forked gripper 19, and lays these stones into the walls either manually or by manipulating G-ohm, in case of availability on the scaffolding When the solution is supplied with a mortar pump, the worker has 2 dispensing nozzles on the working platform. In the absence of a mud pump on the working platform 2, a trough with a mortar is put, applied

I trowel stones or the like. means.

Depicted in FIG. 1-3, the lifting mechanism includes an electric motor 9, a V-belt transmission 10, a screw 8 rotating in a power column and a nut 11 fastened to a scaffold. In other implementations,

an actuator, including an electric motor, a reducer and an endless chain, passed along a power column, with one of the chain links attached to a lifting platform. Maybe also

applied hydraulic drive or a combined drive with a power cylinder and chain transmission, multiplying the stroke of the cylinder.

As materials are consumed

fork fork 19 is lowered, the emptied pallet is replaced with another one loaded with stones.

At the end of the construction of a certain section of the wall and the need

rolling scaffolding to a new workplace through a narrow door or the like opening, transferring the site to another building site or transporting it to another building site

to the transport position shown in FIG. 6-8.

For this, the work platform 2 is rotated from a fixed horizontal to a temporary vertical position, and the supporting platform is narrowed down by bringing the hinge links 25 and 26 connecting the longitudinal front and rear pipes to the folded position corresponding to FIG. 6-8. It takes just a few minutes to transfer the site from or to the transport position.

If required, drive motor 9 is deployed from its working position, in which it is shown in FIG. 1 and 3 to the transport position in which it is shown in FIG. 6 and 8, not protruding beyond the boundaries

widths defined by elements

base frame itself. In such a transport state of the mobile platform, its overall width is reduced to a value of, for example, 700 mm, which allows the platform to roll through the most frequently encountered doorways by directly pushing it or by acting on the levers 27 of the ratchet mechanisms of the traveling wheels.

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Claims (2)

1. Mobile scaffoldings, including a support structure with a working platform installed with the possibility of changing its height, and a support frame with wheels, characterized in that, in order to enhance operational capabilities, the working platform is console-secured to the support structure and provided with a forked attachment to it a gripper, the working platform being made up of a composite of hingedly connected sections, the outer of which is installed with the possibility of rotation in a vertical plane, and the transverse elements of the supporting frame s fulfilled 386 articulated with the possibility of changing the frame dimensions in the horizontal plane. 2. Scaffolding according to Claim. 1, characterized in that they are provided with a manual drive mounted on at least two wheels. in the form of a ratchet mechanism, made of a ratchet ring and a two-arm lever, the lower short arm of which has a ratchet dog that interacts with the teeth of the ratchet wheel and the long upper arm of the lever is made of two hingedly articulated parts with the possibility of pulling the longer upper part in the vertical plane. (rig 2 Have .6 V3 9 s- A a J5 J 13 rt g 16 fig.CJ " (riR.Z did b zg ge gr 30 eight FIG. five FIG. 6 Editor N.Gorvat Compiled by E. Volkova Tehred A. Kravchuk Proofreader O. Kravtsova Order 4041/29 Circulation 688 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5 7 srigd Subscription