JP3013950U - Floor to floor unloader - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a lighter and cheaper floor-to-floor unloader with a simpler structure than before. [Structure] At least two upper and lower frames 11 and 12
And a carriage 30 slidably arranged on the ladder 10 for sliding, which is formed to have a length between the upper and lower floors by being connected to each other.
And a manual winch 40 detachably attached to the lower part of the sliding ladder 10, and a rope 41 connects a pulley 14 of the carriage 30 and a pulley 15 of the upper end of the sliding ladder 10 from a socket 14 at the upper end of the sliding ladder 10. After that, it is wound around a drum of a manual winch 40 (a power winch may be used).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an inter-floor unloader used at a construction site and used for unloading and unloading between floors on each floor.

[0002]

[Prior art]

 Conventional unloaders lean against the outside of a building at a construction site to unload rooftop color vests, colonials, roof tiles, etc., and plywood, flooring, etc. of building materials from the exterior wall side. It is intended to be used by leaning against the outer wall diagonally for unloading to the first floor (including the third floor). It consists of a ladder that slides in double, a cargo bed, and an electric motor that raises and lowers the cargo bed. Was bent or curved and connected to a curved ladder, so that the material could be easily loaded onto the roof or inside.

[0003]

[Problems to be solved by the device]

 However, the conventional unloading machine has a complicated structure because the length is slid to be adjusted and unloading is performed up to the bent part at the upper end, and it is expensive due to the use of an electric winch. It was also inconvenient.

The present invention has been made in view of the above-mentioned circumstances, and uses a lightweight and inexpensive manual winch with the length of a ladder as the length between floors, which is used for stairs formed on the upper floor. The present invention provides a manual inter-floor unloader that leans against the edge of a space to eliminate the conventional drawbacks.

[0005]

[Means for Solving the Problems]

 According to the present invention, at least two sets of upper and lower frames are connected to each other so that they can be connected to each other and are formed to have a length substantially between the upper and lower floors, and a socket for fixing a rope end and a pulley are provided side by side at the upper end. A slide ladder, a carriage slidably mounted on the slide ladder and having a rope pulley attached thereto, and a manual winch detachably attached to the lower portion of the slide ladder. The rope is wound around a drum of a manual winch through the pulley of the loading platform and the pulley of the sliding ladder from the socket.

Further, according to the present invention, at least two sets of upper and lower frames are connected to each other so as to be connectable to each other and are formed to have a length substantially between the upper and lower floors, and a socket for fixing the rope end is provided at the upper end. A slide ladder provided with a pulley, a carriage slidably mounted on the slide ladder, and a rope pulley attached to the slide ladder, and detachably attached to the lower portion of the slide ladder. The rope is wound around the drum of the power winch from the socket through the pulley of the loading platform and the pulley of the sliding ladder.

[0007]

[Action]

 Since at least two sets of upper and lower frames can be connected to each other, the sliding ladder can be disassembled into at least two sets and placed on a luggage carrier such as a truck.

Further, since the rope is stretched through the pulley at the upper end of the sliding ladder and the pulley of the dolly, in order to lift the weight of the loading platform, the pulling force of the rope may be 1/2.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIGS. 1 to 5, 11 is an upper frame, 12 is a lower frame, and a groove-shaped member made of a light alloy (often made of an aluminum alloy) is used to form a bolt or the like through a pad material having the same shape at the inner side at substantially the center. And the slide ladder 10 is formed. In the case of the figure, two splices are used, but three or more splices may be used. Reference numeral 1 is a horizontal bar of the upper floor, which is provided as an edge for the stairs to reach the upper floor. In the case of the drawing, since it is used in a substantially vertical position, the upper end of the sliding ladder 10 is tentatively fixed by stapling it on the crossbar 1. However, this is not necessary if the entire length of the sliding ladder is slightly longer than the length between floors and it is leaned at a slight angle.

Reference numeral 13 denotes a pedestal for supporting the unloader on the lower floor, which is formed of a short frame and is pivotally attached to the lower end of the lower frame 12. At the upper end of the sliding ladder 10, a socket 14 for fixing the rope end and a pulley 15 are provided side by side. Reference numeral 30 denotes a trolley, which is made of the same light alloy or iron as the sliding ladder 10 and has a loading platform 31 bent at a right angle, and an extension portion 34 provided at the lower side thereof, which is fitted into a groove of a groove-shaped member on both sides. Two rotating rollers 32 are pivoted on one side, two on the upper and lower sides, and a total of four on both sides. Further, a pulley 33 for a rope is pivotally attached to the rear surface of the carriage substantially at the center thereof.

Reference numeral 40 denotes a manual winch, which is detachably attached to the lower end rear surface of the sliding ladder 10. It is also possible to attach and use a power winch such as an electric winch. Reference numeral 41 denotes a rope, which is usually a flexible wire rope, and the tip thereof is fixed to a rope end fixing socket 14 at the upper end of the sliding ladder 10 so that the pulley 33 of the carriage 30 is connected to the pulley 15 at the upper end of the sliding ladder 10. After that, it is wound around the drum of the lower manual winch 40. In the case of 42, the carriage 30 is moved up and down by rotating the handle with a manual winch, and when the rotation is stopped, the carriage 30 is stopped by a ratchet (not shown).

In order to carry the building material from the lower floor to the upper floor, as shown in FIG. 1 (b), the extension 34 at the lower end of the trolley 30 comes into contact with the pedestal 13 and is stopped. As shown, the building material 2 such as gypsum board or plywood is leaned against the platform 31 and placed, and the handle 42 is rotated to wind up the cart 30. When the height H between the upper and lower floors shown in FIG. 1B is 3.2 M, for example, the vertical distance of the truck 30 is about 2 M, and the handle 42 is only rotated about 11 times. When the building material 2 rises to the upper position shown in Fig. 1 (b), a worker on the upper floor pulls the upper end of the building material 2, and the cross bar 1 is used as a fulcrum, and the building material 2 is on the floor of the upper floor. The building material 2 is carried into the upper floor as it falls down to.

[0013]

[Effect of device]

 The present invention described in detail above has the following effects. (1) Compared with conventional unloaders, the structure is simple, the sliding ladder has only a high length between floors, and because it uses a power winch, it is lightweight and can be provided at low cost. Building materials can be efficiently transported to the upper floor (Claim 2).

(2) Further, when the winch is a manual winch, the loading speed is slightly lowered, but it can be provided at a lighter weight and at a lower cost (claim 1).

[Brief description of drawings]

FIG. 1 is a view of an inter-floor manual unloading machine showing an embodiment of the present invention, in which (a) shows a front surface and (b) shows a side surface.

2A and 2B are views of a dolly showing an embodiment of the present invention, in which FIG. 2A is a front view and FIG. 2B is a side view.

FIG. 3 is a view of a lower frame showing an embodiment of the present invention,
(A) shows the front and (b) shows the side.

FIG. 4 is a diagram of an upper frame showing an embodiment of the present invention,
(A) shows the front and (b) shows the side.

FIG. 5 is a perspective view of an inter-floor manual unloading machine showing an embodiment of the present invention.

[Explanation of symbols]

 10 Slide Ladder 11 Upper Frame 12 Lower Frame 14 Socket 15, 33 Pulley 30 Bogie 40 Manual Winch 41 Rope

Claims (2)

[Scope of utility model registration request] 1. At least two sets of upper and lower frames are connected to each other so that they can be connected to each other and are formed to have a length substantially between the floors, and a socket for fixing a rope end and a pulley are provided side by side. A slide ladder, a trolley slidably mounted on the slide ladder and having a rope pulley attached thereto, and a manual winch detachably attached to the lower portion of the slide ladder. The rope is wound around a drum of a manual winch from the socket, through a pulley of the loading platform and a pulley of a sliding ladder, and the inter-floor unloading machine. 2. At least two sets of upper and lower frames are connected to each other so that they can be connected to each other, and are formed to have a dimension substantially the length between the upper and lower floors, and a socket for fixing a rope end and a pulley are provided side by side. A slide ladder, a trolley slidably arranged on the slide ladder and having a rope pulley attached thereto, and a power winch detachably attached to the lower portion of the slide ladder. An inter-floor unloader, wherein the rope is wound around the drum of the power winch from the socket through the pulley of the loading platform and the pulley of the sliding ladder.