JPH0540492U - Automatic lifting work platform - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The present invention aims to provide an automatic lifting type work scaffold capable of improving workability. [Structure] The present invention is characterized by comprising a movable platform 1, a mast 2 standing upright on the platform 1, and a work scaffold 3 configured to be movable up and down along the mast. It is a type work scaffold. Further, a pinion gear is attached to the mast 2, and a drive device 33 for rotating a rack gear meshing with the pinion gear is attached to the gantry 1,
Another feature is that the work scaffold 3 can be moved up and down along the mast 2. Further, the mast 2 is also characterized in that it is composed of a plurality of short bodies and can be stacked and disassembled.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automatic lifting type work scaffold capable of traveling together with a gantry.

[0002]

[Prior Art]

 Conventionally, when performing aerial work such as wall work and window glass work on construction sites, scaffolds are assembled around the outer periphery of the structure to be constructed by combining steel materials such as pipes and plate materials, or automatic lifting type I was going to either install the elevator or go by an aerial work vehicle.

[0003]

[Problems to be solved by the device]

 The above conventional technique has the following problems. That is, when assembling the scaffolding, the installation and dismantling work are large-scaled, which requires labor and time and is uneconomical. In addition, since it is particularly difficult to climb up and down with the material, workability is reduced and work safety is impaired. When using an elevator, it is necessary to firmly install it on the ground, so it is difficult to move it to the next work place easily, and workability is reduced. When an aerial work vehicle is used, the floor area for work is limited and narrow, which causes a slight decrease in workability.

[0004]

[Means for Solving the Problems]

 The present invention has been made to solve the above problems, and an object of the present invention is to provide an automatic lifting type work scaffold capable of improving workability. That is, the present invention is an automatic ascending-and-descending work scaffold characterized by a movable platform, a mast standing on the platform, and a work scaffold configured to be able to move up and down along the mast. Is. Another feature is that a pinion gear is attached to the mast, and a drive unit for rotating a rack gear that meshes with the pinion gear is attached to the gantry so that the work scaffold can be raised and lowered along the mast. Another feature of the mast is that it consists of multiple short bodies that can be stacked and dismantled.

[0005]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. <a> Traveling platform As shown in FIG. 1, the traveling platform 1 is equipped with a mast and a work scaffold so that it can travel. For example, steel materials are combined to form a pedestal, and wheels 11 are attached to the pedestal so that the vehicle can travel. When traveling, it may be pulled by another tow vehicle or may be self-propelled with a drive motor. Further, the outrigger 12 can be attached to secure the installation stability of the work scaffold.

<B> Mast The mast 2 is, as shown in FIG. 1, a column that is erected at a required height on the traveling frame 1. The mast 2 is composed of a plurality of mast short bodies 21 as shown in FIG. 6, which can be stacked and disassembled. The structure of the mast short body 21 may be, for example, a structure in which four steel columns are connected by connecting members in the lateral direction and the diagonal direction. The connecting method of the mast short body 21 is such that connecting pipes 22 are attached to the upper and lower four corners, and the connecting pipes 22 are joined by bolts or the like so that they can be stacked. Further, the present invention is characterized in that the work scaffold is raised and lowered by a mechanism using a rack gear and a pinion gear, and therefore the rack gear 23 is fixed along the vertical direction of the steel column of the mast short body 21.

<C> Working Scaffold The working scaffold 3 may have a structure in which a handrail 32 is provided around a stage 31 made of steel, as shown in FIG. The work scaffold 3 is arranged horizontally with the mast 2 penetrating it near the center thereof. Then, a drive device 33 for rotating the pinion gear is installed on the work scaffold 3, and the pinion gear meshes with the rack gear 23 attached to the mast 2. When the work scaffold 3 is moved up and down, the drive device 33 can be operated to rotate the pinion gear, and the work scaffold 3 can be moved up and down along the rack gear 23 of the mast 2. Two work scaffolds 3 can be independently attached to both sides of the mast 2, and both can be operated simultaneously or separately. The lifting operation of the work scaffold 3 is performed on the work scaffold 3, but it can also be performed remotely from the ground. Further, in order to ensure the safety of work, a safety net 34 is attached around the mast 2 on the work scaffold 3, and an emergency stop device in case of emergency is also incorporated.

[0008]

[Operation of the device]

 As shown in FIG. 2, the work scaffold 3 is mounted on the short mast body 21 standing on the traveling base 1, the traveling platform 1 is moved to the construction site, and the outrigger 12 stabilizes the installation. Try to. Then, the work scaffold 3 is raised while the mast shorts 21 are piled up to a predetermined height, and the work such as repairing the wall surface is advanced. If the mast 2 has a large overall length and swings, the mast 2 is stabilized by fixing it to the wall surface at predetermined intervals with anchors or the like. When moving to the next work point, the mast 2 can be disassembled to a height where it can stand on its own to lower the body height, and the traveling platform 1 can be moved or pulled by itself to be moved easily and quickly. When you arrive at the next work point, repeat the above method and work again.

[0009]

Second Embodiment Although the above-mentioned embodiment has a single mast, a plurality of masts having two or more masts may be used. For example, as shown in FIG. 3, if the work scaffold 3 is supported by the two masts 2, the supporting force increases correspondingly, so that the work scaffold 3 can be enlarged and the workability can be improved. Also, the mast 2 is stable and the height of self-standing is increased, so it is suitable for indoor ceiling work where anchors cannot be taken on the wall surface.

[0010]

Third Embodiment When it is desired to expand the area of the work scaffold, as shown in FIG. 4, the work scaffold 4 is configured by connecting the work scaffolds to each other, and the structure in which the vicinity of both ends thereof is supported by the mast 2 is provided. Conceivable. By expanding in this way, it can be used for long building walls.

[0011]

Fourth Embodiment As shown in FIG. 5, when the landing of the stairs of a condominium or the projecting object 5 such as a veranda is on the wall surface, the work scaffold 6 is formed into a U-shape or an L-shape. As a result, it is possible to form a scaffold having good workability that matches the projecting object 5. Also, if a crane or the like is attached to the tip of the mast 2, it can be utilized for various unloading work.

[0012]

[Effect of the present invention]

 Since the present invention is as described above, the following effects can be obtained. <a> Since the entire work platform can be moved together with the traveling platform, it is possible to move to the next work point quickly and easily. Therefore, workability can be improved.

<B> Since the work of installing the work scaffolding only needs to stack the masts, the installation and dismantling time can be shortened.

<C> Since the work scaffold automatically moves up and down, it can be easily carried out even when raising and lowering materials.

<D> Since the lifting mechanism for the work scaffold has a simple structure in which only the rack gear and the pinion gear are driven, it can be manufactured at low cost, has few failures, and is easy to maintain.

<E> By increasing the number of masts, the work floor area can be expanded and the workability can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of an automatic lifting type scaffold of the present invention.

FIG. 2 is an explanatory view of a state in which the mast is disassembled and stored.

FIG. 3 is an explanatory view of an embodiment using a plurality of masts.

FIG. 4 is an explanatory view of an embodiment using a long working scaffold.

FIG. 5 is an explanatory view of an example in which the work scaffold is formed in a U shape.

FIG. 6 is an explanatory view of a mast short body.

Claims (3)

[Scope of utility model registration request] 1. An automatic lifting type work scaffold comprising a movable platform, a mast standing on the platform, and a work scaffold configured to be able to move up and down along the mast. 2. The automatic machine according to claim 1, wherein a pinion gear is attached to the mast, and a drive device for rotating a rack gear meshing with the pinion gear is attached to the gantry so that the work scaffold can be moved up and down along the mast. Lifting type work scaffold. 3. The automatic lifting type work scaffold according to claim 1 or 2, wherein the mast is composed of a plurality of short bodies and can be stacked and disassembled.