JP3011356B2 - Shuttle lifter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable table lift used for loading and unloading cargo between a platform such as a truck terminal and a container truck .
That is, it relates to a shuttle lifter.

[0002]

2. Description of the Related Art Conventionally, in order to load cargo from a platform to a container truck or to unload cargo from a container truck, a temporary slope base such as a forklift or the like is assembled to carry out cargo handling work. Assembling requires considerable labor and time. In other words, it is extremely difficult to complete the work setup, loading of materials, and assembling in a limited place within a predetermined time in the assembling type slope table.

[0003]

Therefore, a bogie is required in advance.
Shuttle lifters can also be used to assemble the ramps on the top or to attach the traveling wheels to the frame of the table lift.
Have been proposed as chromatography, in the former case, not only it is difficult storage and its movement, it is difficult to adjust the height and, in the latter, adversely stability at the working position
In addition, no wheels were available that could withstand the weight of cargo and forklifts, all of which were far from practical.

[0004] The present invention relates to such a conventional shuttle library.
Eliminates the disadvantages of the footer , stably stops at the working position,
The purpose of the present invention is to provide a shuttle lifter that can withstand heavy cargo and the weight of a forklift .

[0005]

To achieve the above object of the Invention The, present invention is a mounted to the floor underframe, a lifting device that will be supported by the underframe, the table is raised and lowered by the lifting device And a traveling lift mounted on the table lift, the traveling wheels being grounded when the table is at the lowest position, via a lifting device.
It is attached to a table to lift the frame .

[0006] 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 the shuttle lifter, when the table is at the lowermost position, the traveling wheel is brought into contact with the ground to move up and down.
Since the underframe was mounted on the table so as to be lifted through the device, when moving, for example, when moving between the platform of the truck terminal and the bed of the container vehicle
Lowers the table to the lowest position by the lifting device
To ground the running wheels, and then through the lifting device
Lift the underframe and use the running wheels. And stop
Location, for example, between the platform and the
The table is lifted to the height of the container carrier at the stop position between them to form a passage for a forklift or the like. In this case, road wheels increases with the table, the shuttle lifter is grounded by the underframe of the table lift, able to support the weight of such luggage and forklift underframe, compared to road wheels, large Supports weight stably
be able to. When storing, move the
Chi, lifting device grounded road wheels is lowered <br/> to the lowest position of the table by lifting the through lifting device underframe
It is housed in a state where the wheels for running are used .

[0008] Further, when a slope carriage capable of moving in a predetermined direction is mounted on the table, the table is raised to a predetermined height, that is, the height of the container carrier, and then the slope carriage is mounted on the platform. Are moved to form a passage for the forklift, and one end of the passage is engaged with the table to stabilize the passage of the forklift formed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to a shuttle lifter shown in the drawings. In the drawings, the same or corresponding parts are denoted by the same reference characters.

In FIG. 1, reference numeral 1 denotes a table lift, which comprises a frame 2, a table 3, and a lifting device 4 provided on both sides. The lifting device 4 is pivotally connected at one end 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, links 5 and 6 pivotally connected in an X-shape at a central pivot point 9, one end of which is pivotally connected to the underframe 2, and the tip of a piston 11 is pivotally connected to one of the links 5. And a coupled cylinder 10.

When hydraulic oil is supplied to the cylinder 10, the piston 11 extends, pushes above the pivot point 9 of the link 5 to push up the table 3, and when the hydraulic oil of the cylinder 10 decreases, the piston 11 retreats. Then, the table 3 is lowered by pulling above the pivot point of the link 5. In Table 3,
A traveling wheel 15 with a driving device 13 is attached via a support portion 12, and a chain wheel 16 is attached to a support shaft 14 for switching the direction of the traveling wheel 15. The chain wheel 16 is provided with a shaft 1 of an electric motor 17 provided substantially at the center on both sides of the table 3.
8, the chain wheels 19, 19 provided in the
a and 19a (see FIG. 2). Therefore, by controlling the electric motor 17 by a remote controller (not shown), the traveling direction of the table lift 1 can be controlled.

As shown in FIG. 1, a slope truck 20 is mounted on the table 3, and the slope truck 2
0 is a central portion 21 and a shaft 20a at the front end of the central portion 21.
A front end 22 pivotally connected by a
And a rear end portion 23 that is pivotally connected about 0b. One end of a cylinder 26 and one end of a piston 27 are pivotally connected to the bracket 24 fixed to the center portion 21 and the bracket 25 fixed to the rear end portion 23, respectively.

As shown in FIG. 3, the slope carriage 20 is used to bridge 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 change direction, and these wheels 28, 28
, Via a chain wheel 30 and a chain 31. A fixed driven wheel 32 is provided at the rear end 23 of the slope truck 20, and a protruding engagement portion 34 that engages with the hole 3 a of the table 3 is provided at the rear end of the extension 33. Is provided. In addition, at the rear end of table 3,
A crossover plate 3b for bridging the gap between the table 3 and the container vehicle T is rotatably provided.

When the slope truck 20 is bridged between the table 3 and the platform P, it is preferable to use the jack 35 to incline the slope truck 20 at a predetermined angle and to support the load on the truck.
In this case, it is preferable that a suitable engaging portion is formed at the rear end 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 stored at the time of non-operation, that is, at the storage position. In this state, the lifting device 4 reduces the hydraulic oil in the cylinder 10 most, the piston 11 retreats, and the table 3
Lowered to the lowered position, road wheels 15 floor surface or
Lift the underframe 2 through the lifting device 4 in contact with the ground F,
The entire shuttle lifter 1 is supported by running wheels 15 provided on a support shaft 14.

FIG. 5 shows the shuttle lifter in operation, that is, moved to the working position. The underframe 2 is in contact with the floor surface F, and supports the table 3 via the lifting device 4.
The table 3 is raised to the height of the loading platform of the container truck T, and a rotating plate 36 provided at the rear end is passed over the gap with the loading platform. The slope cart 20 is moved from the mounting position on 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 3 a of the table 3. A forklift (not shown) for loading and unloading cargo from a container truck passes through a passage formed by the slope truck 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 car T, and first,
The table 3 is raised to the position of the platform P by the lifting device 4. (B) As shown in the figure, the drive motor of the slope carriage 20 is driven at that position, and the slope carriage 20 is moved by the wheels 28 to the platform P.
Move to In this case, the power supply uses a connection terminal 37 provided in advance on the platform P. However, if necessary, other power such as mounting a battery on the shuttle lifter 1 can be used. Further, when moving, the cylinder 26 is operated, the rear end portion 23 is turned to the horizontal position, and the wheel 32 is also moved to the wheel 2 of the central portion 21.
It will be located on the same horizontal plane as 8, 28.

As shown in FIG. 6C, when the slope carriage 20 is stopped on the platform P, the extension plate 33 of the rear end 23 projects from the platform P to the floor F across the boundary. Position. Next, when the table lift 1 is raised, the protruding engagement 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 for placing the tip 22 on the platform P. The rising position of the table lift 1 is the height of the bed of the container truck T. A large load on the slope truck 20 can be supported by two jacks engaged on both sides thereof.

When the loading and unloading work is completed, FIG.
The slope truck 20 is mounted on the table lift 1 in the reverse order from the diagram (d) to the diagram (a), and the lifting device 4 is operated to lower the table 3, and the traveling wheels 15, 15 is brought into contact with the floor surface F, and the lifting / lowering device 4 is operated, so that all the shuttle lifters including the underframe 2 are supported by the traveling wheels 15, 15. Thereafter, 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,
The road wheels, when the table is at the lowest position, the contact
Because the table was mounted on the table so that the underframe was lifted via the lifting device, the table was lowered to the lowest position by the lifting device and the traveling wheels were grounded when moving. , lift the underframe via a lifting device, by using the traveling wheels can be moved, during work, the lifting device
Therefore, by lifting the table together with the traveling wheels and grounding the underframe, a large weight that cannot be supported by the traveling wheels can be stably supported.

[Brief description of the 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. 1;

FIG. 3 is a side view of a slope truck mounted on the shuttle lifter of FIG. 1;

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

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

6 (a), 6 (b), 6 (c) and 6 (d) are schematic side views each showing a method of operating the slope bogie of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Table lift 2 Underframe 3 Table 3a Hole 3b Transition plate 4 Elevating device 5, 6 Link 5a, 6a, 9 Pivot point 7, 8 Roller 10 Cylinder 11 Piston 12 Support unit 13 Drive unit 14 Support shaft 15 Running wheel 16 , 19 chain wheel 17 electric motor 18 axis 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

Continuing from the front page (72) Inventor Toshio Ueno 2-69 Minamikominami, Suminoe-ku, Osaka Inside Nichirei Osaka Wharf Logistics Service Center (72) Inventor Teruo Takahashi 1-4-14 Yaesu, Chuo-ku, Tokyo Inside Nihon Kikai Kogyo Co., Ltd. (72) Inventor Fumihiko Arima 1-4-14 Yaesu, Chuo-ku, Tokyo Nihon Kikai Kogyo Kogyo Co., Ltd. (56) References JP-A-2-48398 (JP, A) Japanese Utility Model Showa 51-22349 (JP, U) Japanese Utility Model Showa 55-50079 (JP, U)

Claims (3)

(57) [Claims] And 1. A platform is mounted on the floor frame, and supported Ru lifting device by this underframe, a table lift comprising a table which is moved up and down by the lifting device, running wheels attached to the table lift In the shuttle lifter having the above, when the table is at the lowermost position, the traveling wheels are grounded and the underframe is moved through the elevating device.
A shuttle lifter that is mounted on a table so that it can be lifted . 2. The shuttle lifter according to claim 1, wherein a slope carriage movable in a predetermined direction is mounted on the table. Wherein said slope truck, shuttle lifter of claim 1 wherein the digits setting an engaging portion for engagement with the table.