JP2015055063A - Slide type multistage overhang scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an overhang work scaffold capable of safely, easily and remarkably improving even economic efficiency at a high place and dangerous construction site such as being unable to bring a work scaffold into close contact with a building wall surface only by a lifting type work scaffold, in construction work such as a partially largely recessed structure part and a complicated structure part in a multistory building.SOLUTION: A slide type multistage overhang work scaffold on the present invention comprises a plurality of stages of superimposed drawable-contractable overhang scaffolds having a telescopic pipe structure, and provides a safe multistage slide type overhang scaffold capable of optionally drawing from a lifting type work scaffold device by using a driving mechanism such as a rack-and-pinion mechanism.

Description

  The present invention relates to a work scaffold or a lifting work scaffold device in the construction work of a high-rise building, and in particular, a sliding multistage overhanging scaffold for adjusting the gap between the work scaffold floor and the wall of a high-rise building such as a building. The present invention relates to a working scaffold device provided.

  In the work scaffolding device that performs high place work such as construction of large structures and building maintenance, a lift drive unit that lifts and lowers the mast column attached to the base frame on the ground, and this lift drive unit are connected There is an elevating work scaffolding device having a work deck.

  The work deck is a unit attached to the mast column so as to be movable up and down. Preferably, an underfloor structure for supporting a pillar portion inserted into the vertical axis material of the mast strut and a work scaffold floor connected thereto (hereinafter referred to as “deck plate”), and a desired location And a stopper mechanism that is fixed at a desired position and prevents a descent. The deck plate laid on the structure below the floor of the work deck functions as a working scaffold for construction workers, and construction materials and equipment are also secured on the deck plate. The drive device is a device having a function as a driving force for moving the work deck up and down, and is realized by using an automatic rotation drive device such as an electric motor or a pneumatic motor.

  In the elevating work scaffolding device, the work deck connected to the elevating drive unit moves up and down along the wall surface of the construction structure. Therefore, both the work deck and the deck plate laid on the work deck are separated from the wall surface of the structure body. It has a predetermined gap apart (Patent Document 1). This is to prevent accidents such as damage due to contact with the wall surface of the building structure when the work deck is moved up and down.

  In the lifting type work scaffolding device, as described above, there is a gap between the deck plate and the wall of the building. The work is done safely by using stretched scaffolds that extend to eliminate gaps as much as possible. The secondary work scaffold that slides out from the upper or lower part of the deck plate of the liftable work scaffold device is hereinafter referred to as a “slide-type projecting scaffold”.

  With the recent diversification of architectural structure design, the shape of the building structure has become complicated, and it has an intricate structure at the high-rise part, a partly recessed structure, or a projecting structure. There are many structures, and the slide-type overhanging scaffold of the above-described lifting type working scaffold device is frequently used for dangerous construction work and maintenance work at these high places.

  Some slide-type overhanging scaffolds of the lifting work scaffolding device are formed by automatically sliding and stretching from the deck plate by being automatically controlled by the operation panel, or by manually sliding and stretching. . In addition, there is a type of sliding type overhanging scaffold in which the whole is simultaneously slid in the width direction from the deck plate to form the overhanging scaffold with the same length as the whole deck plate. In the case of this type, there is an effect that the width of the entire deck plate is enlarged at the construction site of the high place and can be in close contact with the wall surface of the building frame.

  In addition, a slide-type overhanging scaffold can be formed by sliding in the width direction only from a fixed interval portion (corresponding to a “basic unit work deck” described later) of the deck plate to form an overhanging scaffold only on a part of the deck plate. There are things that can be done. In the case of this type, there is an effect that the work scaffold can be in close contact with the wall surface of the structure part partially recessed or the complicated structure part at the high-rise building construction site.

  The deck plate (main deck plate) of the lifting work scaffold device needs a deck plate that is wide and long enough to construct a large structure. The entire deck plate of such a lifting type work scaffolding apparatus is hereinafter referred to as “main deck plate”. In this case, the main deck plate has a required length by connecting and coupling a plurality of basic unit work decks. That is, the main deck plate is formed by connecting the deck plates on the upper part of the work deck having the length of the basic unit, and is hereinafter referred to as “basic unit work deck”.

  Some of these basic unit work decks have built-in slide-type overhang scaffolds. In this case, the slide-type overhang scaffolds can be arbitrarily extended from the deck plate of the basic unit work decks as needed. The work can be done in close contact with the intricate building structure. The sliding base scaffolding of the basic unit work deck is constructed by sliding or extending from the upper or lower part of the base unit work deck plate automatically or manually, and is connected to the deck plate of the basic unit work deck. (Deck plate) (see Patent Document 1).

Japanese Patent No. 4796195 JP 7-158254 A

  As mentioned above, the slide-type overhang work scaffold works by sticking the work scaffold to the wall of a partially recessed structure part or intricate structure part in a high-rise construction site of a high-rise building. There is an effect that can. However, since the slide-type overhanging scaffold is embedded in the lower or upper part of the main deck plate, the length over which the slide-type overhanging slide slides out is the width of the main deck plate. Can't overhang.

  Even if the slide-type overhanging scaffold is embedded in the basic unit work deck, the length of the overhang of the slide-type overhang scaffold is approximately the same as the width of the basic unit work deck, that is, the width of the deck plate. The length is the limit.

  For this reason, in the recently designed high-rise buildings that have been designed in a complex manner, it is not possible to reach the building wall with the sliding overhanging scaffolding, and the work scaffolding is in close contact with the structural parts that are partly deep and complicated. There were frequent cases where it was not possible. In the technology or technical idea of the conventional lifting work scaffolding device, there is no simple way to deal with the construction of such a complicated high-rise building wall surface that cannot be intimately contacted only by the sliding overhanging scaffold. In such a case, it is necessary to work with a separate assembly work scaffold in the vicinity of the high-rise wall surface in advance, and there is a great risk of accidents such as the fall of the operator and the fall of parts and equipment. There were major problems such as delays and costs.

  Moreover, in patent document 2, the technical idea about the scaffold floor extension of the telescopic pipe structure which slides out with respect to the length direction of a raising / lowering type work scaffold apparatus is disclosed. The telescopic pipe structure will be described later. However, in patent document 2, there is no description about the extension of the scaffolding floor with respect to the width direction of the elevating work scaffolding device directed toward the building wall surface, and no problem has been raised.

  The present invention is intended to solve such problems in the prior art, and simply provides a construction work scaffold on a high-rise building wall far away from the lifting work scaffold, It is an object to provide a work platform that can significantly improve work efficiency while also improving economic efficiency.

  As described above, the present invention can be arbitrarily extended from a conventional work scaffold device in order to easily lay a safe work scaffold for a partially deeply embedded structure part or an intricate structure part in a high-rise building. And the technical idea which concerns on the slide-type multistage overhanging scaffold which can adjoin to the structure housing | casing wall surface which requires a work is provided.

  That is, in order to solve such a problem, the slide type multistage overhanging scaffold according to the first embodiment of the present invention includes a main deck plate configured to be connected in one direction or multiple directions of a work scaffold device, and the main deck plate. A first slide deck plate that is laid in an upper or lower portion of the main deck plate and can slide and move forward and / or backward with respect to the width direction of the main deck plate, and further on the upper or lower portion of the first slide deck plate. Further, the second slide deck plate is provided to be included and is slidable in the forward direction or in the right direction and / or the left direction.

  The slide type multistage overhanging scaffold according to the second embodiment of the present invention can be further slid and extended from the first slide deck plate of the slide type scaffold that slides and extends from the main deck plate of the working scaffold device. The present invention is realized as a working scaffold device including a second slide type scaffold having a second slide deck plate. Simple and safe because the second slide deck plate can be brought into close contact with the wall of a deeply built structure or intricately constructed structure that could not be accessed only by the first slide deck plate by sliding and extending the second slide deck plate. Can provide a stable working platform.

  The first slide deck plate of the sliding multistage overhanging scaffold according to the third embodiment of the present invention may slide out in the front direction in the width direction of the working scaffold device, or may slide out in the rear direction. Also good. In this description, the direction toward the structure wall surface is defined as the front direction, and the reverse direction is defined as the rear row. Similarly, the second slide deck plate may slide out in the forward direction of the first slide deck plate, or may slide out in the left direction or right direction. The left direction or the right direction refers to the length direction of the main deck plate. Therefore, it is possible to provide a working scaffold that can approach the details of a complicated building.

  The slide type multistage overhanging scaffold according to the fourth embodiment of the present invention is deeply embedded in the high place of the high-rise building by laying it on the main deck plate of the lifting work scaffold used for the construction of the high-rise building, for example. It is possible to provide a safe and simple work scaffold that can be brought into close contact with each other without requiring a separate assembly scaffold to be built in advance on the structure part or the complicated structure part.

  The sliding multistage overhanging scaffold according to the fifth embodiment of the present invention may be laid at any position on the main deck plate of the lifting work scaffold, or is laid at all of the basic unit work decks described later. Also good. Therefore, the space space in which the work can be safely performed on the lifting work platform is greatly increased, and the same effect as that of using a larger lifting work scaffold for the construction work can be obtained. Significant savings in construction costs.

  Furthermore, the slide type multistage overhanging scaffold according to the sixth embodiment of the present invention is laid on the upper or lower portion of the second slide deck plate from the second slide deck plate that is slid out, and in the forward direction, Alternatively, it includes a third slide deck plate that can slide and protrude in the right direction and / or the left direction. Further, in this way, the slide type multistage overhanging scaffold according to the present invention is constructed such that the slide deck plate is superimposed on the upper or lower part of the main deck plate in a plurality of stages, such as the first, second and third. Is a working scaffold characterized by

  The slide deck plate of the slide-type overhanging scaffold with multiple stages slides and protrudes even for partially deeply recessed structures and large intricate structures in complicatedly designed high-rise buildings. Work scaffolding can be set up close.

  The slide-type multistage overhanging scaffold according to the seventh embodiment of the present invention is a slide drive device that drives the slide deck plate so that the slide deck plate can be slid out to an arbitrary position and extended or retracted, and power is supplied to the drive device. The power supply unit and a control unit that controls the driving device are provided. The power supply unit and / or the control unit may be laid on the main deck plate, or may be a system capable of remote operation. However, the present invention is not limited to power control, and does not exclude manual driving.

  The sliding multistage overhanging scaffold according to the eighth embodiment of the present invention is laid for each basic unit work deck constructed by connecting main deck plates, and the first slide deck plate from the main deck plate of the basic unit work deck, It has a payout structure similar to the telescopic pipe structure in the order of a plurality of overlapping slide deck plates such as the second slide deck plate and the third slide deck plate, and each slide deck plate can slide and extend or contract. It is characterized by that.

  In the slide type multistage overhanging scaffold according to the ninth embodiment of the present invention, the slide moving mechanism in the slide driving device that drives the slide deck plate so that it can be slid and extended or retracted to an arbitrary position includes a pulley and -Feeding or drawing-in control using a wire mechanism, a rack and pinion mechanism, a screw shaft, and a worm gear mechanism. By using a pulley-and-wire mechanism, a rack-and-pinion mechanism, or a screw shaft-and-worm gear mechanism for the slide movement mechanism, the slide deck plate can be smoothly slid and extended electrically. You can slide in.

  However, the slide type moving mechanism is not limited to the pulley / and wire mechanism, the rack / pinion mechanism, the screw shaft / and worm gear mechanism, and may be a driving mechanism using other known techniques. Good. The details of the pulley and wire mechanism, the rack and pinion mechanism, the screw shaft and worm gear mechanism will be described in the detailed description.

  According to the slide type multistage overhanging scaffold according to the present invention, only the first stage of the conventional lifting and lowering work scaffolding device is a structure part that is partially deeply intricately designed in a high-rise building or an intricate structure part. In the above-described slide type overhanging scaffold, a safe working scaffold can be easily provided on the wall surface of the separated structural part where the working scaffold cannot be adhered to the wall surface of the building. Therefore, the risk of accidents such as the operator's crash and the fall of parts / equipment can be greatly reduced.

  In addition, since it is not necessary to temporarily set up a separate assembly work scaffold at a dangerous high place construction site, it is possible to suppress the delay of the construction period and the occurrence of extra construction costs. Therefore, in the construction work and maintenance work of a high-rise building, it is possible to significantly improve the safety and workability and also to improve the economic efficiency.

It is the perspective conceptual diagram which showed the image of the whole work deck of the raising / lowering type work scaffold apparatus which concerns on one Embodiment of this invention. It is sectional drawing which showed the concept at the time of extending | stretching in case the structure of the slide drive part of the slide type multistage overhanging scaffold which concerns on one Embodiment of this invention is a rack and pinion mechanism. It is sectional drawing which showed the concept at the time of extending | stretching in case the structure of the slide drive part of the slide type multistage overhanging scaffold which concerns on one Embodiment of this invention is a screw shaft and worm gear mechanism. It is sectional drawing which showed the concept at the time of extending | stretching in case the structure of the slide drive part of the slide type multistage overhanging scaffold concerning one Embodiment of this invention is a pulley and wire mechanism.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following, the range necessary for the description for achieving the object of the present invention is schematically shown, and the range necessary for the description of the relevant part of the present invention will be mainly described. According to a known technique.

  FIG. 1 is a perspective conceptual view showing an overall image of a work deck 2 of a lifting work scaffold device 1 according to an embodiment of the present invention. The work deck 2 of the lift-type work scaffold device 1 that can be lifted by two mast struts 20 is configured by connecting and joining basic unit work decks 3. The main deck plate 4 is also configured by connecting and connecting the upper deck plates of the basic unit work deck 3.

  Under the deck plate of each basic unit work deck 3, a sliding overhanging scaffold 5 is installed and built. The slide-type overhanging scaffold 5 includes a first-stage slide-type overhang scaffold 6, a second-stage slide-type overhang scaffold 7, and a third-stage slide-type overhang scaffold 8 built therein.

  Each basic unit work deck 3 configured by connecting the work decks 2 of the lifting work scaffold device 1 according to one embodiment of the present invention shown in FIG. 1 is laid with a slide-type multistage overhanging scaffold 5. . The sliding multistage overhanging scaffold 5 includes a three-layer sliding overhanging scaffold. However, the number of slide-type overhanging scaffolds to be included is not limited to three layers.

  The slide-type multistage overhanging scaffold 5 extends from the front side of the main deck plate 4 with the first-stage slide-type overhanging scaffold 6 extended, and the second-stage slide-type overhanging scaffold 7 extends further from the front side. Overhang. Then, the third-stage slide-type overhang scaffold 8 is further slid and extended toward the front. Each slide-type overhanging scaffold can be returned to its original position by sliding contraction in the same way as sliding and extending, and its operation may be automatic or manual, and its extension / contraction An example of the structure of the drive mechanism for the above will be described later.

  In FIG. 1, the second-stage slide-type overhanging scaffold 7 is slid and extended in the front direction (that is, the direction from the back to the front of the paper). You may make it the structure which can be extended | stretched by sliding-extending in either of the directions. Similarly, it is needless to say that the third-stage slide-type overhanging scaffold 8 may be structured such that the third-stage slide-type overhang scaffold 7 can be extended by sliding in either the left or right side direction of the second-stage slide-type overhanging scaffold 7.

  The third-stage slide-type overhanging scaffold 9 in FIG. 1 conceptually surrounds the second-stage slide-type overhanging scaffold 7 by sliding and extending in the right side direction, and is surrounded by a broken line. Further, the first-stage slide-type overhanging scaffold 6 may also have a structure that slides and extends backward in FIG. 1, and each basic unit work deck 3 constituting the work deck 2 has the same slide-type as described above. The structure of the multistage overhanging scaffold 5 may be included. The present application does not limit the extending direction of the slide-type protruding scaffold 5.

  A slide-type multistage overhanging scaffold 5 according to an embodiment of the present invention is preliminarily embedded in a basic unit work deck 3. The structure of the first, second and third stages of the slide-type overhang scaffolds constituting the slide-type multi-stage overhang scaffold 5 includes the structure of the basic unit work deck 3 on which these slide-type overhang scaffolds are laid. In addition, the telescopic pipe structure that can be stretched and contracted can be stretched uniaxially up to the maximum length that can be stretched by each slide type overhanging scaffold. In the detailed structure of the slide-type overhanging scaffold 5 that slides and extends, there may be a slide shaft rail or a side rail, and it may be an extension of an intermediate plate structure sandwiched between upper and lower plates. In particular, it is within the scope of the concept of a telescopic pipe mechanism, and details are not limited in the present invention.

  The telescopic pipe mechanism is a hollow similar cylinder built in the inside in the order of size, with a “barbed” edge inside the large cylinder and a barbide edge outside the small cylinder. A thing that can expand and contract. This structure is used for telescopes, fishing rods, radio antennas, batons, fire ladder ladders, etc. It is a structure that can be a polygonal column as well as a cylinder. The telescopic structure may be a nested structure. In the case of the slide type multistage overhanging scaffold 5 in the present invention, it can be said that the structure of the ladder of the fire fighting ladder car is approximated.

  Next, an example of the extension drive mechanism of the slide type extension scaffold according to an embodiment of the slide type multistage extension scaffold of the present invention will be described. As for the overhang driving mechanism of the overhang scaffold, three types of a rack and pinion mechanism, a screw shaft and worm gear mechanism, and a pulley and wire mechanism are described below as an example.

(About the rack and pinion mechanism 10)
FIG. 2 is a cross-sectional view showing a concept at the time of extension when the structure of the slide drive portion of the slide-type multistage overhanging scaffold 5 according to the embodiment of the present invention is a rack and pinion mechanism.

  FIG. 2 shows a slide type multistage overhanging scaffold according to an embodiment of the present invention, in which the main deck plate 4 has the maximum structure, the first stage slide overhanging scaffold 6, the second stage slide overhanging scaffold 7, and the third stage slide. It is a conceptual sectional view showing that the telescopic pipe structure has a telescopic pipe structure that can be expanded and contracted by reducing the outer mold in accordance with the type overhanging scaffold 8, and conceptually showing the state in which the first, second and third slide type overhanging scaffolds are slid and extended. It shows.

  The third-stage sliding overhanging scaffold 8, which is the most advanced part, is constructed by sliding from the second-stage sliding overhanging scaffold 7, and the second-stage sliding overhanging scaffold 7 slides from the first-stage sliding overhanging scaffold 6. Stretched and configured. Similarly, the first-stage slide type overhanging scaffold 6 has a structure that is slid and extended from the main deck plate 4.

  The slide-type overhanging scaffolding of each stage includes a slide deck plate 24 that serves as a scaffolding floor, a frame 23 that fixes the electric motor 22, and an overhang driving mechanism.

  FIG. 2 shows an embodiment of a mechanism for feeding out a slide-type overhanging scaffold. An electric motor 22 with a pinion gear 21 is fixed to a frame 23 of each slide-type overhanging scaffold, and a slide deck plate of each slide-type overhanging scaffold. 24, the rack gear 25 and the pinion gear 21 are meshed with each other, and the electric motor 22 is CCW rotated (counterclockwise in the case of FIG. 2) to slide each slide-type overhanging scaffold as shown in FIG. it can. If the electric motor 22 is CW-rotated in this state (clockwise rotation in the case of FIG. 2), each slide type overhanging scaffold can be slid and pulled.

  For example, the electric motor 22 to which the pinion gear 21 is added is fixed to the frame 23 of the first-stage slide-type overhanging scaffold 6, and the rack gear 25 fixed to the slide deck plate 24 of the second-stage slide-type overhanging scaffold 7 is engaged with the pinion gear 21. Then, the second stage slide type scaffold 7 can be extended as shown in FIG. 2 by CCW rotation of the electric motor 22. Similarly, the electric motor 22 to which the pinion gear 21 is added is fixed to the frame 23 of the second-stage slide-type overhanging scaffold 7, and the rack gear 25 fixed to the slide deck plate 24 of the third-stage slide-type overhanging scaffold 8 is engaged with the pinion gear 21. The third stage slide type overhanging scaffold 8 can be extended by rotating the electric motor 22 CCW.

  In FIG. 1, the case where the third-stage slide-type overhanging scaffold 9 is slid in the left and right side direction and is overhanged is illustrated with a broken line. The telescopic pipe structure that expands and contracts depending on the direction of the gear of the built-in rack and pinion mechanism, whether each sliding overhanging scaffold slides and stretches in the front-rear direction or slides in the left-right side direction It is decided by the direction. The built-in rack and pinion mechanism that enables sliding expansion and contraction in both directions can extend and retract the sliding overhanging scaffold in both the front, rear, left and right directions.

  The slide drive unit refers to a device for sliding and extending a slide-type overhanging scaffold of each step installed at the lower or upper part of the main deck plate 4 forward of the main deck plate 4. By controlling the rotation of the motor 22 and the pinion gear 21 that can be rotated in reverse, the rotation of a screw-like drive shaft, which will be described later, and the rotation of the pulley 31 by the operation control unit, What can be pulled in may be adopted.

  The drive mechanism such as the electric motor 22 is installed in the main deck plate 4 and in each slide type overhanging scaffold, but the operation control unit is installed on the work deck 2, for example. Expansion and contraction can be controlled collectively.

  As an operation control unit, a device for switching the current direction for switching the ON / OFF operation of the current flowing to the slide drive unit and the feeding / drawing operation and a function may be provided separately, or a remote operation type may be used. . Moreover, you may make it rotate drive mechanisms, such as the pinion gear 21, manually.

  For example, when positioning the slide-type multistage overhanging scaffold 5 on the target wall surface or the like, the slide-type overhanging scaffold is drawn in advance, and when the vertical position of the work deck 2 is determined, the slide-type overhanging scaffold is fed out sequentially, and the wall surface and the work scaffolding. Fix at the position where there is no gap. In the case of a three-stage slide-type overhanging scaffold as shown in FIG. 1, it is not necessary to limit the order of the steps of the scaffold that is extended by sliding and can be arbitrarily determined.

(About screw shaft and worm gear mechanism 11)
FIG. 3 is a cross-sectional view showing a concept at the time of extension when the structure of the slide drive portion of the slide type multistage overhanging scaffold according to another embodiment of the present invention is the screw shaft and worm gear mechanism 11. A screw bearing 26 is joined to the lower part of the slide deck plate 24A of the slide type overhanging scaffold that is extended and overhanged. 22A is laid.

  FIG. 3 exemplifies an embodiment in which a slide type overhanging scaffold is extended, and an electric motor 22A to which a screw shaft 27 having a worm gear 28 is added is fixed to a frame 23 of each slide type overhanging scaffold, and each slide type overhanging scaffold is provided. Each of the slide-type overhanging scaffolds can be extended by being coupled with a screw bearing 26 fixed to the slide deck plate 24A of the scaffold and rotating the electric motor 22A. If the electric motor 22A is reversely rotated in this state, each slide type overhanging scaffold can be drawn.

  FIG. 3 shows the concept of a drive mechanism in which only the first stage slide-type overhanging scaffold is slid and extended from the main deck plate 4 by the screw shaft and worm gear mechanism. Needless to say, the mechanisms by which the slide-type overhanging scaffolds of each stage are extended by sliding are also the same screw shaft and worm gear mechanisms.

(About pulley and wire mechanism 12)
FIG. 4 is a cross-sectional view showing a concept at the time of extension when the structure of the slide drive portion of the slide-type multistage overhanging scaffold according to still another embodiment of the present invention is a pulley and wire mechanism 12. A wire 30 is joined to the slide deck plate 24B of the slide-type overhanging scaffold that is extended and overhangs, and a pulley 31 connected to the wire 30 and a motor 22B for driving the wire are connected to the frame 23B on the overhang side. It is laid.

  FIG. 4 illustrates an embodiment in which a slide-type overhanging scaffold is extended. Since the slide deck plate 24B, the pulley 31 and the electric motor 22B of the slide-type overhanging scaffold are connected via a wire 30, the electric motor 22B is connected. By rotating the wire 30, the wire 30 moves, and the slide type overhanging scaffold can be extended. If the electric motor 22B is reversely rotated in this state, the slide type overhanging scaffold can be drawn.

  FIG. 4 shows the concept of a drive mechanism in which only the first stage slide type overhanging scaffold is slid and extended by a pulley and wire mechanism from the main deck plate 4, but each of the slide type multistage overhang scaffolds Needless to say, the mechanisms in which the slide-type overhanging scaffolds of the steps slide and extend are the same pulley and wire mechanisms 12.

  In the rack and pinion mechanism 10, the screw shaft and worm gear mechanism 11, and the pulley and wire mechanism 12 shown in FIGS. 2, 3, and 4, an example in which a gear and a pulley are rotated by an electric motor is shown. However, it may be rotated by a drill driver or manually instead of the electric motor.

  The slide-type multistage overhanging scaffold according to the present invention is provided with a reinforcing structure such as a support post for supporting three points in order to prevent deflection due to a load expected at the tip when the overhanging scaffold is slide-extended. (Or 23A, 23B) is not excluded from being laid in advance. Similarly, when the slide type multistage overhanging scaffold is slid and stretched, the deflection of the slide type multistage overhanging scaffold is preliminarily assumed based on the expected load at the tip portion of the deck plate 24 (or 24A, 24B). It is not excluded to correct the projecting angle upward from the horizontal by a slight required angle, and these techniques can be handled within the scope of known techniques.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. These are all part of this technical idea.

  As described above, according to the slide-type multistage overhanging scaffold according to the present invention, from a lifting and lowering work scaffold device to a partially deeply structured part or an intricate structural wall surface in a complexly designed high-rise building A safe work platform can be provided easily. Therefore, the risk of accidents such as the operator's crash and the fall of parts / equipment can be greatly reduced.

Similarly, the delay of the construction period and the occurrence of extra construction costs can be greatly suppressed. Therefore, in the construction work and maintenance work of a high-rise building, it is possible to significantly improve the safety and workability and also to improve the economic efficiency. Therefore, the present invention provides great benefits in the construction industry and related industries, and its industrial applicability is extremely large.

DESCRIPTION OF SYMBOLS 1 Elevating work scaffold apparatus 2 Work deck 3 Basic unit work deck 4 Main deck plate 5 Sliding multistage overhang scaffold 6 First stage slide overhang scaffold 7 Second stage slide overhang scaffold 8 Third stage slide overhang scaffold 9 Next Third-stage sliding overhanging scaffold 10 in the direction Rack-and-pinion mechanism 11 Screw shaft-and-worm gear mechanism 12 Pulley-and-wire mechanism 20 Mast column 21 Pinion gears 22, 22A, 22B Electric motors 23, 23A, 23B Frame 24 24A, 24B Slide deck plate 25 Rack gear 26 Screw bearing 27 Screw-shaped shaft 28 Worm gear 29 Bearing 30 Wire 31 Pulley

Claims (6)

A main deck plate laid in one direction or multiple directions of the working scaffold device;
A first slide deck plate that is laid on the upper or lower portion of the main deck plate and that can slide and expand by sliding forward and / or rearward in the width direction of the main deck plate;
A second slide deck plate that is laid on the upper or lower portion of the first slide deck plate and that can slide forward and backward and extend leftward and / or rightward of the first slide deck plate. Equipped,
Further, a plurality of stages that are laid on top or bottom of the second slide deck plate so as to overlap and extend and contract by sliding and moving in the front direction, left direction and / or right direction of the second slide deck plate. A working scaffold device having a slide-type multi-stage overhanging scaffold characterized in that a slide deck plate can be laid. A slide driving device for driving the plurality of slide deck plates to slide and extend to an arbitrary position; and
A power supply unit for supplying power to the drive device;
The work scaffold device according to claim 1, further comprising a control unit that controls the driving device.   The slide movement mechanism of the slide deck plate of the plurality of stages is a slide feed / retraction control using a rack and pinion mechanism, a screw shaft and worm gear mechanism, or a pulley and wire mechanism. Item 3. The working scaffold device according to Item 1 or 2. A basic unit scaffolding deck laid in one direction or multiple directions of an elevating work scaffolding device;
A first slide deck plate that is laid on the upper or lower part of the main deck plate of the basic unit scaffolding deck and can slide and extend from the basic unit scaffolding deck;
A second slide deck plate that is laid on the upper or lower portion of the first slide deck plate and that can slide and extend in the forward direction, or the left direction and / or the right direction of the first slide deck plate;
The telescopic pipe structure is laid on the upper or lower portion of the second slide deck plate and has a telescopic pipe structure, so that the front direction, the left direction and / or the right direction of the second slide deck plate And a multi-stage slide deck plate that can slide and expand and contract. A slide driving device for driving the plurality of slide deck plates to slide and extend to an arbitrary position; and
A power supply unit for supplying power to the drive device;
The elevating work scaffolding device according to claim 4, further comprising: a control unit that controls the driving device.   The slide movement mechanism of the slide deck plate of the plurality of stages is a slide feed / retraction control using a rack and pinion mechanism, a screw shaft and worm gear mechanism, or a pulley and wire mechanism. Item 6. The lifting work scaffold device according to Item 4 or 5.