JPH05338976A - Lift for construction - Google Patents

Abstract

PURPOSE:To lessen the weight of a device additionally installed inside of a lift by providing a travelling frame body which is allowed to forward to/retreat from each floor by rotational movement of wheels motivated by a drive means provided on a lift deck and by providing a fork lift part in the travelling frame body so as to forward/retreat freely between the lift deck and each floor. CONSTITUTION:A longitudinal void space 3 is provided in one section of a building 2 under construction and a lift cage 1 elevated by a which via a lifting cable 4 is incorporated therein. A hydraulic cylinder 21 as a drive means is fixed on the lift deck 5 of the lift cage 1, a guide 22 is also arranged thereon, and a travelling frame body 20 whose wheels 23 are rotationally moved on the guide 22 is mounted thereon. A fork lift part 24 which is allowed to forward to/retreat from a position on a foor 6 on a building 2 side by employing the travelling frame body 20 as a support point and a guide is provided in the travelling frame body 20, and a pallet 11 is mounted on a freely elevatable fork 25, so as to carry materials. This constitution eleminates necessity on an independent fork lift truck of massive weight so as to lessen the weight applied to the lift.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction lift device used for material transportation at a construction site such as a building.

[0002]

2. Description of the Related Art At a construction site such as a building, material transportation from the ground to each floor of the building is automated. FIG. 6 shows an example of conventional automation of this kind of material transportation. In FIG. 1, reference numeral 1 is not shown in the drawing, which is provided at the upper end of the building 2 with a space 3 which vertically passes through a section of the building 2 under construction. A lift cage, which is lifted and lowered by a hoisting rope 4 wound around a winch, 5 is a lift floor, and 6 is a floor on one floor for carrying materials of the building 2 under construction. A forklift 10 equipped with two sets of wheels 7 and 8 for traveling and traversing and a telescopic fork 9 is arranged on the floor 6 of each floor, and the lift cage 1 reaches the floor height at which the material-containing pallet 11 should be transported from the ground. Lift and forklift 1 placed on that floor
0 crosses into lift cage 1 and telescopic fork 9
Then, the pallet 11 is lifted, returned to the floor 6 of the building 2 and switched to the traveling wheels 8 so as to be conveyed to a predetermined position.

[0003]

According to this conventional apparatus, for example, a standard pallet 11 has a load weight of 1.3.
Since a forklift 10 having a normal load of about 0.8t is used and the forklift 10 moves into the lift cage 1 and takes out the pallet 11 from the lift cage 1, the lift cage has a loading capacity of 2t or more. You will need it. However, since a standard construction lift of less than 1.5t is used as a single carrier, it cannot be used and a special order is required. A forklift 10 with one or two vehicles on each floor of the building to be built
There is also a problem that equipment costs are high in terms of the cost of remodeling the forklift, such as the need for traversing wheels to traverse the lift cage 1 in and out. It is an object of the present invention to provide a construction lift device that solves the above conventional problems.

[0004]

Therefore, the construction lift device of the present invention is a construction lift device for a building or the like.
A movable frame provided on the lift floor so as to advance and retreat by wheel rolling from the lift floor to each opposing floor such as a building by driving means, and from the lift floor to each floor by using the movable frame as a fulcrum and a guide. It is characterized by having a forklift portion provided so as to move forward and backward.

[0005]

In the present invention, the pallet containing material placed in a fixed position near the entrance of the lift cage at the ground floor height is pulled into the lift cage by the fork of the forklift unit installed in the lift cage. The lift cage rises to a predetermined floor, the forklift section in the lift cage embarks and places the carried pallet on the opposite floor of the rising floor, and returns to the lift cage. Conversely, when sending a pallet containing materials from a predetermined floor of the building to the ground, the same operation is performed on the reverse path. Unlike a normal forklift, the forklift part provided in the lift cage does not need the vehicle body part, and instead only needs to have a lightweight movable frame body. Therefore, the weight of the lift cage and the device arranged inside the lift cage is reduced. It is significantly lighter than the conventional one,
The normal construction lift is ready for use. Also, since the pallet lateral holding movement between the lift floor and the building floor is performed exclusively by the forks of the forklift in the lift cage, forklifts placed on the ground and on each floor only have the pallet lateral holding movement between the lift floor and the building floor. Since it is not necessary to provide a traversing device system to be used and it is dedicated to pallet traveling and conveying only on each floor, the traverse device system can be reduced in preparation cost and can be efficiently operated in terms of its use. As a result, the automation control also simplifies individual operations and facilitates control.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the construction lift device of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a construction lift device according to an embodiment of the present invention. In the figure, 1 is a lift cage provided with a longitudinal space 3 in a section of a building such as a building 2 to be elevated and lowered by a hoisting rope 4 wound around a winch arranged at the upper end thereof, 5
Is a lift floor, and 6 is a floor of a predetermined floor of the building 2 or the like, and the lift cage 1 is stopped at a height facing and matching the floor 6. Reference numeral 20 denotes a drive means having one end fixedly connected to the lift floor 5, that is, a hydraulic cylinder 21 and a guide 22 fixed to the floor 5.
A movable frame body with wheels 23 provided so as to move forward and backward from the lift floor 5 to a position straddling the floor 6 such as a building.
Reference numeral 24 denotes a forklift portion that moves together with the movable frame body 20 using the movable frame body 20 as a fulcrum and a guide, and is further movable to a position on the floor 6 of a building or the like by a drive system and wheels described later, and 25 denotes a forklift portion. 24 forks. In FIG. 1, the forklift portion 24 is at a predetermined stop position on the lift floor 5, and a state in which the pallet 11 for material transportation is lifted and supported by the fork 25 is shown by a solid line, and from this state, the movable frame body 20 and the forklift portion 24 move forward. Then
A state in which the pallet 11 is dropped on the floor 6 of a building or the like is shown by a chain line. FIG. 2 is a partial plan view of the movable frame body 20 and the forklift portion 24 shown in FIG. 3 and 4 are a front view and a side view taken along arrows 3 to 3 and 4 to 4 of FIG. 2, and FIG. 5 is a side view of arrows 5 to 5 in FIG.

In FIGS. 2 and 3, the movable frame body 20 and the forklift portion 24 are symmetrical with respect to the center line 26, and only one half is shown in the drawings. One end of the hydraulic cylinder 21 is pin-connected to a fixed bracket 27 on the lift floor 5, and the drive end is connected to a bracket 28 that laterally extends from the movable frame 20. The guide 22 on the lift floor 5 is provided with a hydraulic cylinder 21. It is provided in parallel to and in contact with the outer side surface of the wheel 23 of the movable frame 20 so as to be guided and fixed to the lift floor 5. 5, 29 is a horizontal rail fixedly provided on the inner surface of the side plate of the movable frame 20, and 30 is a horizontal rail 29.
A non-driving wheel or roller provided on the side wall surface of the forklift portion 24 so as to roll up, 31 is a link chain stretched between the front and rear connecting portions 32, 33 in parallel with the inner surface of the side plate of the movable frame body 20, Reference numerals 34 and 35 denote drive gears and idle gears provided on the side wall surface of the forklift portion 24 so as to engage the link chain 31 in an S shape, and 36 denotes a motor for the drive gear 34.

Further, referring to FIG. 4, a pair of forks 25, 25 provided in the forklift portion 24 has one end integrally joined to both sides of the back plate 37, and rollers 38 provided at both ends of the back plate 37 connect the fork lift portion. The vertical guide groove 39 of 24 is liftably engaged, and the bracket 40 part at the center of the back plate 37 is connected to the end of the link chain 43 that meshes with the gear 42 at the end of the hydraulic cylinder 41 provided in the forklift part 24 to move up and down. It was driven.

Further, one end of the lower surface of the fork 25 is axially attached to the lower portion of the fork lift portion 24 and the lower portion of the back plate 37, and cross arms 45 and 46 are pin-connected 44 at the central portion.
The other ends of the cross arms 45, 46 are in contact with the lower surface of the fork 25 and the lift floor 5 or the floor 6 surface of a building or the like via a roller 47 and a wheel 48 for supporting a reaction force, and support for the fork 25 is provided. Support the load. The forklift portion 24 is driven by the above-described left and right motors 36 to drive the gear 3
The wheels 30 and 48 are driven in the front-rear direction with respect to the movable frame body 20 via the link chains 31 and 4, and the wheels 30 and 48 are moved to the rail 29 and the lift floor 5 on the movable frame body 20 or the floor 6 such as a building.
It engages and moves upward.

The above-mentioned apparatus picks up the pallet 11 containing the material, which has been conveyed and placed in front of the entrance of the lift cage 1 on the ground, onto the fork 25 by sending out the movable frame 20 and the forklift portion 24 in the lift cage 1. , Lift cage 1
It is driven back inward, the lift cage 1 is raised to each building floor and stopped, and the movable frame 20 and the similar delivery fork 25 of the forklift portion 24 are lowered to place the pallet 11 on the floor 6 in front of the lift entrance on the building floor. One cycle work consists of lowering the lift cage 1 and driving it back into the lift cage 1 to lower the lift cage to the ground floor. Used to do. According to the above-described device, the forklift portion 24 provided in the lift cage does not need the vehicle body portion of a normal forklift, and instead a light-weight movable frame body 20 may be provided, so that the equipment weight added to the lift can be remarkably lightweight. It will be possible to use a normal-sized construction lift.

Further, since the material pallet loading and unloading between the lift cage and the building floor or the ground floor is all carried out by the forklift section 24 in the lift cage, the material transporting forklifts on the ground and each floor of the building are not required to traverse, and the traverse device It will be good to use an ordinary forklift without a system. Further, the unit cycle operation for material pallet transportation is simplified for both the forklift portion in the lift cage and the forklift on each building floor, and the transportation becomes easy. As a result, there is an advantage that the automation of each transport control is facilitated.

The present invention is not limited to the above-described embodiments, but the configurations, combinations, drive systems, guide systems, etc. of the movable frame and the forklift are freely within the scope of the invention. The design can be changed and implemented.

[0013]

In summary, the construction lift device of the present invention advances and retreats by wheels from the lift floor to a position still on the floor of the building or the like via the drive means and the guide provided on the construction lift floor of the building or the like. It is equipped with a movable frame and a forklift section that moves forward and backward from the lift floor using the movable frame as a fulcrum and a guide. It has been reduced so that general construction lifts can be used.

Further, by dedicating the device in the lift cage for the material pallet transportation between the lift cage and the floor of each floor of the building, the material transportation equipment on each floor is also lightened, and the unit operation cycle of the transportation system. This simplifies the operation and facilitates the work and the automatic control.

[Brief description of drawings]

FIG. 1 is a side view of an arrangement of a lift device according to a first embodiment of the present invention.

FIG. 2 is a partial plan view taken along line 2-2 of FIG.

3 is an end view taken along line 3-3 of FIG.

FIG. 4 is a side view taken along the line 4-4 of FIG.

5 is a side view taken along the arrows 5 to 5 in FIG.

FIG. 6 is a side view of a conventional construction lift device.

[Explanation of symbols]

 1 Lift Cage 2 Building to be Constructed 5 Lift Floor 6 Floor of Building 20 Movable Frame 21 Drive Means 22 Floor Fixing Guide 23 30, 48, Wheel 24 Forklift 25 Fork 36 Fork Lift Motor 40 Fork Vertical Cylinder 45 , 46 Crossarm 38, 47 Roller

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Nagisa Minami 4-6-22 Kannon Shinmachi, Hiroshima City, Hiroshima Prefecture Sanryo Heavy Industries Ltd. Hiroshima Research Laboratory

Claims (1)

[Claims] 1. A lift device for construction of a building or the like, comprising a movable frame body provided so as to move forward and backward by a wheel rolling from a lift floor to each floor facing the building or the like by a driving means provided on the lift floor. A construction lift device, comprising: a forklift unit which is provided so as to advance and retreat from the lift floor to each floor using the movable frame as a fulcrum and a guide.