JPH0840568A - Shuttle lifter - Google Patents

Abstract

PURPOSE:To provide a shuttle lifter easily movable as a slope truck used for cargo loading/unloading between a container vehicle or the like and a platform and adjustable in height while holding necessary structural strength. CONSTITUTION:In a table lift 1 having an elevating device 4, a table 3 is provided with plural pairs of travel wheels 15, and the table lift 1 can travel only when the table 3 is in the most lowered position. The table 3 is mounted with a slope truck 20 movable in a specified direction, and this slope truck 20 is provided with an engaging part 34 to be engaged with the table 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shuttle lifter used for loading and unloading cargo between platforms such as truck terminals and container vehicles.

[0002]

2. Description of the Related Art Conventionally, in order to load cargo from a platform into a container vehicle or to unload cargo from a container vehicle, a temporary slope stand through which a forklift or the like can pass is assembled for cargo handling work. Assembling the above requires a considerable labor and working time. That is, in the assembly-type slope stand, it is extremely difficult to complete the work setup, material loading, and assembly within a predetermined time within a limited place.

[0003]

Therefore, it is proposed that the slope base is assembled in advance or the traveling wheels are attached to the underframe of the table lift, but in the former case, the movement and the storage are not possible. Not only difficult,
It is difficult to adjust the height, and in the latter case, the wheels that can bear the weight of cargo and forklifts cannot be obtained, and the stability in the working position is poor, and neither is practical. It was

An object of the present invention is to solve the drawbacks of the conventional slope stand, to provide a shuttle lifter which can be easily moved, can be adjusted in height, and can provide necessary structural strength. There is.

[0005]

In order to achieve the above object, the present invention provides a table lift having an elevating device, wherein a plurality of pairs of traveling wheels are provided on the table and the table lift is at the lowest position. The vehicle is capable of running.

It is advantageous that a slope carriage movable in a predetermined direction is mounted on the table, and the slope carriage is preferably provided with an engaging portion with the table.

[0007]

In a table lift having an elevating device, a plurality of pairs of traveling wheels are provided on the table, and the table lift can travel when the table is at the lowest position.
It is easy to lower the table to the lowest descent position, support the table lift with multiple pairs of traveling wheels, and move it between the platform of the truck terminal and the bed of the container vehicle, at which position the table is lifted. When the vehicle is raised to the height of the loading platform of the container vehicle to form a passage for the forklift, the traveling wheels also rise together with the table. Can be installed stably by directly contacting the floor. In the case of storage, the table can be lowered to the most lowered position, the traveling wheels support the entire shuttle lifter, and then the table can be moved to the storage location.

When the table is equipped with a slope carriage that can move in a predetermined direction, the table is raised to a predetermined height, that is, the height of the bed of the container vehicle, and then the slope carriage is mounted on the platform. Is moved to form a passage for the forklift, and one end of the passage is engaged with the table to stabilize the passage for the forklift.

[0009]

Embodiments of the present invention will be described below with reference to the shuttle lifter shown in the drawings. In addition, in the drawings, the same or corresponding parts are denoted by the same reference numerals.

In FIG. 1, reference numeral 1 denotes a table lift, which comprises an underframe 2, a table 3 and lifting devices 4 provided on both sides. One end of the lifting device 4 is pivotally attached to the table 3 and the underframe 2 at pivot points 5a and 6a, respectively.
At the other end, a roller 7 that rotates in contact with the underframe 2 and the table 3,
8 are provided, links 5 and 6 pivotally attached to each other at an X-shaped central pivot point 9, and one end pivotally attached to the underframe 2 so that a tip of a piston 11 can pivot to one link 5 It is composed of a coupled cylinder 10.

When hydraulic oil is supplied to the cylinder 10, the piston 11 expands and pushes the table 3 upward by pushing above the pivot point 9 of the link 5, and when the hydraulic oil in the cylinder 10 decreases, the piston 11 retreats. , The upper part of the pivot point of the link 5 is pulled to lower the table 3. Table 3 has
A traveling wheel 15 with a drive device 13 is attached via the support portion 12, and a chain wheel 16 is attached to the support shaft 14 for switching the direction of the traveling wheel 15. This chain wheel 16 is provided with a shaft 1 of an electric motor 17 provided at substantially the center of both sides of the table 3.
The chain wheels 19 and 19 and the chain 19 provided in FIG.
It is driven by a and 19a (see FIG. 2). Therefore, by controlling the electric motor 17 with a remote controller (not shown), the traveling direction of the table lift 1 can be steered.

As shown in FIG. 1, a slope carriage 20 is mounted on the table 3, and the slope carriage 2 is mounted on the table 3.
0 is the central portion 21 and the shaft 20a at the front end of the central portion 21.
A front end 22 pivotally connected by means of a shaft 2 at the rear end.
It is composed of a rear end portion 23 connected to be rotatable around 0b. One end of a cylinder 26 and one end of a piston 27 thereof are pivotally attached to a bracket 24 fixed to the central portion 21 and a bracket 25 fixed to the rear end portion 23, respectively.

As shown in FIG. 3, the slope carriage 20 is used for bridging the table 3 of the table lift 1 and the platform P. Central part 2
1 is provided with two pairs of fixed wheels 28, 28 which cannot turn, and these wheels 28, 28 are driven by a drive motor 29.
From the chain wheel 30 and the chain 31. A fixed driven wheel 32 is provided at the rear end portion 23 of the slope carriage 20, and a protrusion-shaped engaging portion 34 that engages with the hole portion 3a of the table 3 is provided at the rear end portion of the extension portion 33. It is provided. In addition, at the rear end of the table 3,
A crossover plate 3b for bridging the gap between the table 3 and the container car T is rotatably provided.

When the slope carriage 20 is bridged between the table 3 and the platform P, it is preferable to incline the slope carriage 20 at a predetermined angle and use a jack 35 to support the load applied to the carriage.
In this case, it is preferable that a suitable engaging portion is formed at the rear end portion of the central portion 21 of the slope carriage 20 and the jack is engaged with this engaging portion.

FIG. 4 shows the shuttle lifter 1 which is stored in the storage position when it is not operating. In this state, the operating oil of the cylinder 10 of the lifting device 4 is reduced most, the piston 11 retracts, the table 3 is lowered to the lowest position, the traveling wheels 15 contact the floor surface F, and the lifting device 4 moves. The underframe 2 is lifted via the, and the entire shuttle lifter 1 is supported by the traveling wheels 15 provided on the support shaft 14.

FIG. 5 shows the shuttle lifter which is moved to the working position, that is, the shuttle frame is in contact with the floor surface F and supports the table 3 via the lifting device 4.
The table 3 is lifted to the height of the loading platform of the container vehicle T, and a rotating plate 36 provided at the rear end of the table 3 is passed through a gap between the loading platform and the loading platform. The slope carriage 20 is moved from the mounting position on the surface of the table 3 to the platform P, and the engaging portion 34 of the extension plate 33 at the rear end is engaged with the hole 3a of the table 3. A forklift (not shown) for loading and unloading cargo from a container vehicle passes through a passage formed by the slope carriage 20 and the table 3 of the table lift 1.

FIGS. 6A to 6D show one method of fixing the slope carriage 20 to the working position.
(A) As shown in the figure, the shuttle lifter 1 is moved between the platform P and the container vehicle T, and first,
The table 3 is lifted to the position of the platform P by the lifting device 4. (B) As shown in the figure, the driving motor of the slope carriage 20 is driven at that position, and the wheels 28 form the slope carriage 20 on the platform P.
Move to. Note that the connection terminal 37 provided in advance on the platform P is used as the power supply at this time, but other power such as mounting a battery on the shuttle lifter 1 can be used if necessary. Further, during the movement, the cylinder 26 is actuated, the rear end portion 23 thereof is turned to the horizontal position, and the wheel 32 thereof is also the wheel 2 of the central portion 21.
8 and 28 will be located on the same horizontal plane.

As shown in FIG. 6C, at the stop position of the slope carriage 20 on the platform P, the extension plate 33 of the rear end portion 23 projects from the platform P to the floor surface F beyond the boundary. The position. Then, when the table lift 1 is raised, the protrusion-like engaging portion 34 of the extension plate 33 engages with the hole 3a of the table 3, and as shown in FIG. Are lifted to form a sloped passageway that places the tip 22 on the platform P. The rising position of the table lift 1 is the height of the bed of the container vehicle T. Note that a large load on the slope carriage 20 can be supported by two jacks engaged on both sides of the slope carriage 20.

When the loading and unloading work of the cargo is completed, FIG.
(D) to (a) in the reverse order, the slope carriage 20 is mounted on the table lift 1, the elevating device 4 is operated to descend the table 3, and the traveling wheels 15, which are provided on the table, 15 is brought into contact with the floor surface F, and further the lifting device 4 is operated so that the traveling wheels 15 and 15 support all the shuttle lifters including the underframe 2. After that, the shuttle lifter is moved to the storage position by human power or the like.

[0020]

According to the shuttle lifter of the present invention,
Since the table lift table is provided with traveling wheels to allow the table lift to travel, it can be moved to the required position, and at the work position where the table rises, the load is received by the table, the lifting device, and the underframe. Therefore, it is possible to support a large weight that cannot be supported by the traveling wheels.

[Brief description of drawings]

FIG. 1 is a schematic side view of a shuttle lifter according to an embodiment of the present invention.

FIG. 2 is a plan view of the shuttle lifter of FIG.

FIG. 3 is a side view of a slope truck mounted on the shuttle lifter of FIG.

4 is a schematic side view of the shuttle lifter of FIG. 1 in a stowed position.

5 is a schematic side view of the shuttle lifter of FIG. 1 in a working position.

6 (a), (b), (c) and (d) of FIG. 6 are schematic side views showing an operating method of the slope carriage of FIG.

[Explanation of symbols]

 1 table lift 2 frame 3 table 3a hole 3b crossing plate 4 lifting device 5,6 link 5a, 6a, 9 pivot point 7,8 roller 10 cylinder 11 piston 12 support part 13 drive device 14 support shaft 15 running wheel 16 , 19 Chain wheel 17 Electric motor 18 Shaft 20 Slope carriage 21 Center part 22 Front end part 23 Rear end part 24, 25 Bracket 26 Cylinder 27 Piston 28, 32 Wheel 29 Drive motor 30 Chain wheel 33 Extension part 34 Engagement part 35 Jack 36 Rotating plate 37 Connection end

Front page continued (72) Inventor Toshio Ueno 12-12 69, Minami Konan, Suminoe-ku, Osaka City Nichirei Osaka Wharf Logistics Service Center (72) Inventor Teruo Takahashi 1-4-4 Yaesu, Chuo-ku, Tokyo No. 14 Inside Japan Equipment Steel Co., Ltd. (72) Inventor Fumihiko Arima 1-44-1 Yaesu Chuo-ku, Tokyo Inside Japan Equipment Steel Co., Ltd.

Claims (3)

[Claims] 1. A shuttle lifter comprising a table lift having a lifting device, wherein a plurality of pairs of traveling wheels are provided on the table so that the table lift can travel when the table is at a lowermost position. 2. The shuttle lifter according to claim 1, wherein the table is equipped with a slope carriage movable in a predetermined direction. 3. The shuttle lifter according to claim 2, wherein the slope carriage is provided with an engaging portion for engaging with the table.