FR3054539A1 - HANDLING TROLLEY WITH A STATION PLATFORM STANDING FOR A STANDING OPERATOR - Google Patents

Abstract

The invention relates to a handling trolley (1) comprising a standing platform (10) for a standing operator (P) and comprising control elements (B) which can be controlled by the operator (P) for controlling driving training and direction. The standing platform (10) is rotatably disposed on the handling truck (1) about a vertical axis of rotation (D) independently of the control elements (B). There is provided a locking device (30) with which the rotation of the standing platform (10) about the vertical axis of rotation (D) can be locked.

Description

© Publication no .: 3,054,539 (to be used only for reproduction orders)

©) National registration number: 17 57032 ® FRENCH REPUBLIC

NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY

COURBEVOIE © Int Cl ⁸ : B 66 F9 / 075 (2017.01), B 62 D 51/02

A1 PATENT APPLICATION

©) Date of filing: 25.07.17. © Applicant (s): LINDE MATERIAL HANDLING GMBH © Priority: 26.07.16 DE 102016113737.5. - OF. @ Inventor (s): FOUHAMI ZAKARIA. ©) Date of public availability of the request: 02.02.18 Bulletin 18/05. ©) List of documents cited in the report preliminary research: The latter was not established on the date of publication of the request. (© References to other national documents © Holder (s): LINDE MATERIAL HANDLING GMBH. related: ©) Extension request (s): © Agent (s): CABINET HERRBURGER.

PU HANDLING TROLLEY WITH A STANDING STATION PLATFORM FOR A STANDING OPERATOR.

FR 3 054 539 - A1 _ The invention relates to a handling trolley (1) comprising a standing station platform (10) for a standing operator (P) and comprising control elements (B) which can be controlled by the operator (P) to control driving drive and steering. The standing platform (10) is arranged so that it can rotate on the industrial truck (1) around a vertical axis of rotation (D) independently of the control elements (B). A locking device (30) is provided with which the rotation of the standing platform (10) about the vertical axis of rotation (D) can be locked.

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Field of the invention

The invention relates to a handling trolley with a standing station platform for a standing operator and with control elements operable by the operator to control a driving drive and a steering.

State of the art

The handling carts comprising a standing station platform for a standing operator and therefore the handling carts which can be controlled by a standing operator in driver-mounted mode can be produced in the form of order picking carts, in the form of forklifts or in the form of tractors. The control elements for controlling a driving drive and a steering are arranged, in such industrial trucks, on a vehicle body separate from the standing platform.

During the operation of the industrial truck, the operator standing on the standing platform can in this case adopt different control positions. For the forward drive of the industrial truck, the operator stands in a normal frontal control position behind the control elements on the standing platform, so that the operator - seen in the longitudinal direction of the vehicle - can look straight ahead. When driving the industrial truck in reverse, the operator can turn 90 ° to the side in a lateral control position so that the operator can also operate the control elements of the industrial truck with one hand. handling and, by an additional rotational movement of the head - seen in the longitudinal direction of the vehicle - can look backwards. If the operator, when driving the industrial truck in reverse, keeps or must keep unchanged the position of the feet on the standing platform, i.e. the position of the feet of the operator on the standing station platform remains the same in the normal control position and in the lateral control position, this results in unfavorable ergonomics for the operator due to a strong rotation of the upper part of the body. operator in relation to the feet.

Purpose of the invention

The object of the present invention is to provide a handling trolley of the type mentioned in the introduction which, in a lateral control position of the operator standing on the standing station platform, has improved ergonomics with low construction cost.

Presentation and advantages of the invention

This object is achieved according to the invention by the fact that the standing station platform is arranged so as to be able to rotate on the handling carriage around a vertical axis of rotation independently of the control elements, a locking device extends provided, with which the rotation of the standing platform around the vertical axis of rotation can be locked. Thanks to the standing station platform rotatably arranged on the industrial truck, the operator can laterally turn his whole body for driving in reverse without changing the position of his feet on the platform. standing position and therefore adopt a lateral control position in which no rotation of the upper part of the operator's body relative to the feet is required. This allows ergonomics favorable for the operator in the lateral control position. In the case of the handling trolley according to the invention, the standing station platform is arranged so that it can rotate around the vertical axis of rotation on the handling trolley independently of the control elements. In the case of a rotation of the standing platform, the position of the control elements on the industrial truck therefore does not vary. This allows a low construction cost because only the standing station platform must be arranged so that it can rotate around the vertical axis of rotation. The standing station platform can in this case be arranged so that it can rotate freely around the vertical axis, so that the construction cost is further reduced. Thanks to the locking device, the rotation of the standing platform around the vertical axis of rotation can in this case be locked and therefore blocked with low construction cost.

According to an advantageous embodiment of the invention, the standing station platform has no motor drive for rotation about the vertical axis of rotation and the operator can rotate it around the axis of rotation vertical after unlocking the locking device. The standing platform is therefore free to rotate around the vertical axis of rotation without additional motor drive and the operator standing on the standing platform can rotate it around the machine. vertical axis of rotation. This results in low construction cost since only a locking device is required for the standing platform in order to lock the rotational movement of the standing platform around the vertical axis of rotation.

According to an advantageous embodiment of the invention, the locking device is produced in the form of an unlockable latching mechanism which automatically keeps the station platform upright in predetermined rotational positions. Thanks to an unlockable latching mechanism, the standing platform can be locked in determined rotation positions with a low construction cost for the locking device.

According to an equally advantageous alternative embodiment of the invention, the locking device is produced in the form of a friction brake. With a friction brake, the standing platform can be locked in a rotation position desired by the operator with low construction cost for the locking device.

According to an advantageous embodiment of the invention, the control elements are arranged on a vehicle body of the industrial truck. This results in a low construction cost since the control elements are fixed to a fixed component of the vehicle body and therefore do not rotate together with the standing platform around the vertical axis of rotation.

As regards a simple rotation control of the station platform standing around the vertical axis of rotation, it is advantageous, according to an advantageous improvement of the invention, that the locking device can be actuated in a position unlocking by means of a control key operable by the operator, for example a control key operable by the hand of the operator. Thus, the locking device can be actuated in a simple manner in an unlocking position by the operator to rotate the standing station platform about the vertical axis of rotation.

The control elements, according to an advantageous embodiment of the invention, can have a steering device and the control button can be arranged on the steering device. The operator can thus comfortably actuate the control key to actuate the locking device of the standing platform in the unlocked position.

The handling trolley can have a drive part and the control button can be arranged on the drive part, in particular on the upper side of the drive part. This also allows the operator to comfortably press the control button to bring the station platform locking device upright into the unlocked position.

According to an improvement of the invention, the standing station platform is provided with a dead man switch which can be actuated by the foot by the operator. In order to operate the dead man switch, the operator must place his feet at specific locations on the standing platform. Thanks to the rotary standing station platform according to the invention, particular advantages are thus obtained:

Without having to change the position of the feet on the standing platform, keeping the standing position in the normal control position and in the lateral control position, the dead man switch can be actuated. The operator can turn his whole body laterally for driving in reverse and thus adopt a lateral control position in which no rotation of the upper part of the operator's body relative to the feet is necessary.

The standing station platform can be made as a non-folding platform or as a platform that can be folded down around a horizontal pivot axis. The industrial trucks with a non-folding platform are made purely for a driver-driven mode. Handling carts with a platform that can be folded down around a horizontal pivot axis allow the choice of operating in carried driver mode or in accompanying driver mode.

The standing station platform can be made in the form of an unsprung standing station platform or in the form of a suspension and / or damping standing station platform. A suspension and / or damping standing station platform, provided with a suspension device and / or a damping device, increases the comfort for the operator.

The handling trolley according to the invention can be produced in the form of an order preparation trolley, for example in the form of a horizontal order preparation trolley, or in the form of a lift truck, for example in the form of a low lift lift truck or of high-lift forklift, or in the form of a tractor.

Drawings

Other advantages and peculiarities of the invention will be explained in more detail using the embodiment illustrated in the schematic figures, in which:

FIG. 1 illustrates a handling trolley according to the invention in side view, the operator being in a normal control position, and

- Figure 2 illustrates the handling trolley of Figure 1, in which the operator is in a lateral control position.

Description of embodiments

Figures 1 and 2 illustrate a handling trolley 1 according to the invention. In the illustrated embodiment, the handling trolley 1 is produced in the form of an order preparation trolley, for example in the form of a horizontal order preparation trolley.

The handling trolley 1 has a vehicle body 2 comprising a vehicle chassis which is provided with a drive part 3, and a load part 4 which can be raised and lowered relative to the drive part. The load part 4 comprises, in the illustrated embodiment, two load arms 5 spaced laterally and a load fork 6 disposed above the load arms 5, which can be raised and lowered by means of a drive lifting not shown in more detail.

The load part 4 is supported on a roadway by means of load rollers 7 arranged at the points of the load arms 5. The load rollers 7 can be arranged so as to be raised and lowered by means of a drive initial lifting so that the load arms 5 have an initial stroke.

In the driving part 3 is arranged a driving drive unit which is no longer illustrated, which comprises a driving wheel 8 and an electric driving driving motor driving the driving wheel 8. The wheel drive 8 is further arranged in a steerable manner about a vertical pivot axis and in a steerable manner by means of an electric steering motor.

The charging part 4 is further provided with a traction battery 9 arranged in a battery compartment, which supplies electric power to the lifting drive, the initial lifting drive, the steering motor and the drive motor. driving training.

The handling trolley 1 is made for operation with a driver carried by a carried operator. For this purpose, a standing station platform 10 is provided on the vehicle body 2, on which an operator P can stand.

The driving drive, the lifting drive, the initial lifting drive and the steering of the industrial truck 1 are controlled by operating elements B by the operator standing standing on the standing station platform 10. The control elements B comprise, in the illustrated embodiment, a steering device 15 with which the steering can be controlled. The control elements for controlling the driving drive, the lifting drive and the initial lifting drive can also be arranged on the steering device 15. The steering device 15 is arranged in the 'exemplary embodiment illustrated, so as to be able to pivot about a pivot axis S on the vehicle body 2, for example on a railing wall 20 disposed on the front side of the vehicle.

The standing platform 10, seen in the longitudinal direction of the vehicle L, is arranged between the railing wall 20 and the drive part 3, the region between the railing wall 20 and the part d drive 3 forming a driver's workstation for the operator P. In the illustrated embodiment, a support auxiliary 17 is provided for the operator standing on the standing station platform 10, which is arranged , in the illustrated embodiment, on the drive part 3.

The standing station platform 10 is provided with a dead man switch 25 which can be actuated by the foot by the operator P.

According to the invention, the standing station platform 10 is disposed on the handling carriage 1 so as to be able to rotate about a vertical axis of rotation D independently of the control elements B. In the illustrated embodiment, the standing station platform 10 is disposed on the vehicle body 2, for example the vehicle chassis, so that it can rotate around the vertical axis of rotation D.

The standing station platform 10 has no motor drive for rotation about the vertical axis of rotation D and is therefore freely rotatable.

A locking device 30 is provided with which the standing station platform 10 can be locked around the vertical axis of rotation D. By locking the standing station platform 10, the operator P can climb from safely on the standing station platform 10 and the operator P can safely descend from the standing station platform 10. After unlocking of the locking device 30 by the operator P, the operator standing on the standing station platform 10 can rotate the standing station platform 10 about the vertical axis of rotation D.

The locking device 30 can be produced in the form of an unlockable latching mechanism which automatically keeps the standing platform 10 in predetermined rotational positions, or alternatively, in the form of a friction brake acting on the platform standing 10.

In order to actuate the locking device 30 in an unlocking position to rotate the standing station platform 10 about the vertical axis of rotation D, at least one control button 35, 36 is provided which can be actuated by the operator P.

The control button 35, in the illustrated embodiment, is arranged on the steering device 15. As a variant or in addition, the control button 36 can be arranged on the drive part 3, for example on the side upper part of the driving part 3. The control keys 35, 36 can be actuated by hand by the operator P.

By actuating one of the control keys 35, 36, the operator P can thus actuate in a simple manner the locking device 30 in the unlocked position so as to be able to rotate the standing station platform 10 around the vertical axis of rotation D.

In FIG. 1, the operator P standing on the standing station platform 10 is in a normal control position for driving the transport truck forward

1. In the forward gear, the industrial truck 1 moves with the drive part 3 forward. The operator P stands in the normal control position at the front behind the control elements B on the standing station platform 10 and looks straight ahead in the driving direction in forward gear.

In FIG. 2, the operator P standing on the standing station platform 10 is in a lateral control position for driving reverse of the handling trolley 1, the operator P, in the lateral control position, being turned from the normal operating position 90 ° to the side. In driving in reverse, the handling trolley 1 moves with the load part 4 at the front. In the lateral control position, the operator P can also control with one hand the control elements B of the industrial truck 1 arranged on the vehicle body 2 and look in the direction of the load part 4 by a movement additional head rotation.

In order to adopt the lateral control position for driving in reverse of the handling trolley 1, in the case of the invention, the standing station platform 10 is rotated by 90 ° around the vertical axis of rotation D. The operator P can thus, in the lateral control position for driving in reverse of the industrial truck 1, maintain without changing the position of the feet on the standing platform 10 relative to the position of normal control for driving forward of the industrial truck 1. For the feet of the operator P, the same position is thus obtained on the standing station platform 10 in the normal control position and in the control position lateral. The standing station platform 10 which can rotate around the vertical axis of rotation D thus allows the operator P in the lateral control position not to rotate the upper part of the body of the operator P by compared to the feet. This results in favorable ergonomics of the operator P in the lateral control position for driving in reverse.

In the case of the handling trolley 1 according to the invention, the standing station platform 10 is arranged so that it can rotate on the handling trolley 1 independently of the control elements B around the vertical axis of rotation D. In the case of the rotation of the standing station platform 10 about the vertical axis of rotation D, the position of the control elements B arranged on the vehicle body 2 therefore does not vary. This allows simple construction of the rotary standing platform 10 as well as the control elements B.

Thanks to the standing station platform 10 which can rotate about the vertical axis of rotation D, it is also possible to obtain, by a corresponding rotation of the standing station platform 10, a better view of the operator P located in the side control position on the load part 4 for driving in reverse.

Thanks to the standing station platform 10 according to the invention, which can rotate around the vertical axis of rotation D, the operator P can thus easily and simply rotate in the driving position of the handling truck 1.

Claims (12)

1 °) Handling cart (1) comprising a standing station platform (10) for a standing operator (P) and comprising control elements (B) which can be controlled by the operator (P) to control a drive driving and steering system, characterized in that the standing platform (10) is arranged so that it can rotate on the industrial truck (1) around a vertical axis of rotation (D) independently of the control (B), a locking device (30) being provided, with which the rotation of the standing platform (10) about the vertical axis of rotation (D) can be locked. 2) handling trolley according to claim 1, characterized in that the standing station platform (10) is free to rotate around the vertical axis of rotation (D) this, without additional motor drive and the operator can rotate it around this vertical axis of rotation (D) after unlocking the locking device (30). 3) handling trolley according to claim 1 or 2, characterized in that the locking device (30) is produced in the form of an unlockable latching mechanism which automatically keeps the standing platform (10) in rotational positions predetermined. 4) handling trolley according to claim 1 or 2, characterized in that the locking device (30) is produced in the form of a friction brake. 5) handling trolley according to any one of the claims 1 to 4, characterized in that the control elements (B) are arranged on a vehicle body (2) of the industrial truck (1). 6 °) handling trolley according to any one of claims 1 to 5, characterized in that a control button (35; 36) makes it possible to actuate the locking device (30) in an unlocking position actuable by the operator (P). 7 °) handling trolley according to claim 6, characterized in that the control elements (B) have a steering device (15) and the control button (35) is arranged on the steering device (15). 8 °) handling trolley according to claim 6 or 7, characterized in that the handling trolley (1) has a drive part (3) and the control button (36) is arranged on the drive part ( 3), in particular on the upper side of the drive part (3). 9 °) handling trolley according to any one of claims 1 to 8, characterized in that the standing station platform (10) is provided with a dead man switch (25) which can be actuated with the foot by operator (P). 10 °) handling trolley according to any one of claims 1 to 9, characterized in that the standing station platform (10) is produced in the form of a non-folding platform or in the form of a platform that can be folded around a horizontal pivot axis. 11 °) handling trolley according to any one of claims 1 to 10, characterized in that the standing station platform (10) is produced in the form of an unsprung standing station platform or in the form of a platform of standing with suspension and / or damping. 12 °) handling trolley according to any one of claims 1 to 11, 10 characterized in that the handling trolley (1) is produced in the form of an order preparation trolley, or in the form of a lifting trolley or in the form of a tractor. 7/2 2/2