JPH0716712Y2 - Lift car - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an improvement of a lift truck used for carrying in and out of a predetermined luggage with respect to windows and balconies of buildings and condominiums, for example. , The structure of which can wind up and wind down the winding wire and the lowering wire of the through box that moves up and down along the guide rails equipped in the lift truck with one winch device, simplifying the design and structure, and reducing the weight, The present invention relates to a lift truck for the purpose of cost reduction and improvement of operability.

[Prior art]

Conventionally, moving in and out of moving luggage, etc. to the higher floors of buildings, condominiums, etc. were carried out using elevators with restrictions on volume and usability, but nowadays it is to solve such problems. As shown in FIGS. 2 (a) and 2 (b), a turntable 1 which can be freely swiveled on a chassis 11a behind the work vehicle.
1b is provided, and a turntable 11b is provided with a guide rail 12 which can be undulated and expanded and contracted, and a box 13 that can be moved up and down along the guide rail 12 is mounted. A lift truck 11 has been developed that does.

By the way, a lifting mechanism B for a case 13 provided in a conventional lift truck 11 is provided with a winch device 14 for winding on the lower surface of the base end portion of a guide rail 12 which expands and contracts as schematically shown in FIG. A winch device 15 for lowering is arranged, one end of the winding wire W ₁ and one end of the lowering wire W ₂ are wound and arranged so as to be freely wound and unwound, and the other ends of the wires W ₁ and W ₂ are guides. It is constructed such that it is connected to the upper and lower ends of the box 13 via a plurality of guide rollers R, R ... Provided on the rail 12, and the box 13 is moved up and down by the operation of each winch device 14 and 15. The reality is that

[Problems to be solved by the device]

However, as described above, the conventional lift vehicle 11 is equipped with the two winch devices 14 and 15 as the elevating and lowering drive device B for the case 13 so that the weight, the space and the auxiliary device are increased, while the hoisting device is used. Winch device 14, hoisting wire W ₁ , box
13, the lowering wire W ₂ , and the lowering winch device 15 are connected in series in this order (especially, the lowering wire W ₁ and the lowering wire W ₂ are configured to maintain tension so as not to cause slack at all times. When the guide rail 12 is used with the guide rail 12 having a certain inclination in the control of the up-and-down movement of the case 13, the winding wire W ₁ is wound from the winch device 14 for winding.・ The lifting and lowering movement of the box 13 performed by the unwinding operation is performed simultaneously with the winch device for lowering the lowering wire W ₂ .
Although it is done with 15 synchronous reverse operations, it is actually a winch device for lowering when the case 13 is raised.
Since it is the actual situation that the winch device 14 for hoisting must be operated with a power that overcomes the tension of 15, the power of the winch device 15 for hoisting the winch device 14 will be an energy loss. There is. Further, since the guide rail 12 which can be expanded and contracted is used, and the winding wire W ₁ is arranged as shown in the figure, when the expansion and contraction operation is performed, the unintended up-and-down movement of the box 13 is simultaneously performed. In order to adjust it, the skill of having to perform the unwinding wire W ₁ and the unwinding wire W ₂ (when the guide rail 12 is extended) or the winding operation (when the guide rail 12 is extended or contracted) in parallel is required. I had to do the required interlocking operation.

In many cases, the guide rail 12 is used in a substantially horizontal state. In this case, in order to prevent the guide rail 12 from moving backward due to its own weight, the winding wire W ₂ is the winch device 15 for winding. Therefore, the tension must be controlled so that the tension can always be maintained, which causes a wasteful energy loss in the power of both winch devices 15 and 14.

[Means for Solving the Purpose and Problem of Invention]

The present invention has been made in view of the above-mentioned problems, and an object thereof is to be used, for example, when moving a predetermined load up and down with respect to windows and balconies of buildings, condominiums, etc. With regard to the improvement of lift trucks, the structure is such that the winding wire and the lowering wire of the box that moves up and down along the guide rails equipped with the lift truck can be wound and unwound with a single winch device. The purpose of the present invention is to provide a lift truck with the aim of simplifying, reducing the weight, reducing the cost, and improving the operability.To this end, the chassis is equipped with undulating and extendable guide rails, and along the guide rails. In a lift vehicle equipped with a box that moves up and down, a winch device for winding and unwinding a winding wire and a lowering wire of the box that moves up and down along the guide rails. Configured to perform.

[Action]

Since the configuration as described above is adopted, the raising / lowering operation of the box is controlled by one winch device, and the box is held at a fixed position regardless of the extension / contraction movement of the guide rails. There is no loss, and when the guide rail is expanded and contracted, unintended movement of the box does not occur, so there is no need for skill such as interlocking operation, the operability of the lift truck is improved, and moving luggage It is possible to efficiently and easily carry out the transfer work, etc., and it is possible to reduce the number of personnel and labor and improve the safety.

〔Example〕

Hereinafter, FIG. 1 (a), (b), FIG. 2 (a) and (b)
An embodiment of the lift truck according to the present invention will be described in detail based on the above.

In FIGS. 2 (a) and 2 (b), 1 is a lift truck according to the present invention, 1b is a turntable mounted on a chassis 1a so as to be freely rotatable, and 2 is mounted on the turntable 1b so as to be undulating and extendable. The guide rail 2 is configured as follows.
The intermediate guide rail 1 and the tip guide rail J are fitted in the front end of the base end guide rail H in a telescopic manner, and the auxiliary guide rail K is inserted in the rear end of the base end guide rail H in an extendable manner. Is configured. 2a is a hoisting cylinder for hoisting and supporting the guide rail 2, 3 is a box for carrying a load P and moving up and down on the guide rail 2,
Reference numeral 4 denotes a rubber tire provided as a cushioning member with a wall that is provided at the tip of the guide rail 2 and leans against it.
Is a winch device which is arranged on the lower surface of the base end part of the drive unit and is a drive source for moving up and down the case 3.

By the way, the ascending / descending drive mechanism A of the case 3 mounted on the lift truck 1 moves along a guide rail 2 which is extended and contracted to a predetermined length as schematically shown in FIGS. 1 (a) and 1 (b). (Moving up and down), a through box 3 that is arranged so that one end is connected to the front end of the through box 3, and then the leading end and the base end of the leading end guide rail J,
A winding wire W that is sequentially wound around and connected to the winch device 5 by being wound around the guide rollers R ... Pivotally mounted near the attachment position of the winch device 5 on the tip end and the base end guide rail H of the intermediate guide rail 1. ₁ and one end of which is connected to the winch device 5 and is wound in the opposite direction to the hoisting wire W _1, and subsequently pivotally attached to the base end of the base guide rail H, the tip and the base end of the auxiliary guide rail K, respectively. It is constituted by a winding wire W ₂ which is sequentially wound around the guide rollers R ... And which is connected to the rear end of the case 3.

The operation of the lift truck according to the present invention will be described below based on the above configuration.

That is, luggage P such as a moving object using the lift truck 1 according to the present invention
When carrying out the control operation of the box 3 that moves (moves up and down) on the guide rail 2 during the transfer work of FIG.
As shown in (b), the hoisting wire W ₁ and the hoisting wire W ₂ respectively connected to the upper and lower ends of the case 3 are passed through the guide rollers R provided at the respective positions of the guide rail 2 ... Since it is connected to the winch device 5 so as to be wound in the same direction, the control of the movement (elevating movement) of the case 3 can be achieved by operating only one winch device 5. That is, when the moving box 3 is moved upward (arrow), the winch device 5
Clockwise (arrow) operation to feed the wire W ₁ operates can be i.e. unwinding the wire W ₂ for winding the winding by actuation also made simultaneously in parallel manner. Also, the box 3 is moved downward (arrow).
In such a case, the winch device 5 is rotated counterclockwise (arrow) to wind the lowering wire W _2, that is, the winding wire W ₁ is unwound in parallel.

The winding wire W ₁ generated when the guide rail 2 expands and contracts
And Makisage excessive tension of the wire W _2, loosening has a structure to adjust in the same figure, the winding wire W ₁ to guide expansion and contraction degree doubly become part corresponding to the rail 2 (shown in the circle) Therefore, there is no hindrance to the vertical movement and expansion / contraction operation.

However, since the raising / lowering movement of the case 3 and the extension / contraction movement of the guide rail 2 are synchronized and controlled by operating one winch device 5, there is no need for a plurality of winch devices and its accompanying equipment as in the conventional case, and there is no energy loss. It is effective and does not cause unintended movement of the case when the guide rail 2 is expanded and contracted, and therefore requires no skill such as interlocking operation, so it is easy to operate, and thus the operation of using a lift truck. In addition, the workability of transporting moving luggage can be quickly and easily performed, the number of workers and labor can be reduced, and the safety can be improved.

[Effect of device]

As described in detail above, the present invention is a lift vehicle equipped with an undulating and retractable guide rail on a chassis and a box that moves up and down along the guide rail. Since the winding and unwinding of the winding wire and the lowering wire of the box is performed by one winch device, the lifting and lowering operation of the box and the extension and contraction operation of the guide rail are synchronized by one winch device. Since it is controlled by, there is no energy loss of the winch device,
When the guide rail is expanded or contracted, unintended movement of the box does not occur, so there is no need for skill such as interlocking operation, the operability of the lift truck is improved, and the transfer work of moving luggage etc. Can be efficiently and easily carried out, the number of personnel and labor can be reduced, and the safety can be improved.

[Brief description of drawings]

1 (a) and 1 (b) are a schematic view and a plan view showing an elevating / lowering drive mechanism of a box that is installed in a lift truck according to the present invention,
2 (a) and 2 (b) are side views of a lift truck according to the present invention and a conventional example, and an overall explanatory view showing a usage state, and FIG. 3 is a lifting / lowering of a container box equipped in the conventional lift truck. It is a schematic diagram which shows a dynamic drive mechanism. 1 ... lift truck, 1a ... chassis, 1b ... turntable, 2 ... guide rail, H ... base guide rail, I ... intermediate guide rail, J ... tip guide rail, K ... auxiliary guide rail,
2a ... derricking cylinder, 3 ... Kayoibako, 4 ... rubber tires, 5 ... winch device, A ... Kayoibako of elevation motion drive mechanism, R ... guide roller, P ... luggage, W ₁ ... winding wire, W ₂ ... Makisage wire .

Claims (1)

[Scope of utility model registration request] 1. A lift vehicle equipped with a guide rail that is capable of undulating and expanding and contracting on a chassis, and is equipped with a box that moves up and down along the guide rail, and hoisting of the box that moves up and down along the guide rail. Winding wire and unwinding wire,
A lift vehicle characterized in that it is configured so that it is fed out by a single winch device.