DE202011104994U1 - Mobile operator-integrated lifting device - Google Patents

Abstract

Lifting device to support lifting processes in the form of picking up, moving and depositing objects by a person, characterized in that the lifting device is a mobile frame with two protruding or horizontally projecting support arms attached to it, with a lifting means being attached to each support arm, that the carrying arms and lifting means are arranged in such a way that a human operator can position themselves backwards or between them on or in the lifting device and then both lifting devices are positioned in front of the operator in an area that can be reached with the hands or arms, - that each lifting means at least is designed to be vertically movable up to an upper stop, - that the lifting device has at least one component which is designed such that an upward force, which cannot be influenced by a human operator during the lifting process, is exerted on each lifting means, that both lifting devices are designed so that a human ...

Description

The invention relates to a universal, simple, mobile, space-saving and cost-effective lifting device for assisting a person in picking up, moving and depositing objects.

For manual handling of objects there are numerous technical aids.

Known solutions are handling equipment, such. In patent no. EP 1899256 B1 (especially drawing). In the mobile version, such a device consists of a mobile device, which can grasp and move an object in front of it with suitable assemblies (eg hooks hanging on the cantilever). Typically, an operator stands directly on the device. There is thus space required in addition to the object to be moved both for the handling device as for the operator. Handling devices which are suspended in fixed superstructures (eg ceiling of a building) (example: utility model no. DE 000009100079 U1 ), have a very small footprint in the immediate vicinity of the object to be moved, but their mobility is limited to the limits of the superstructure. In addition, handling devices are usually equipped with controls and controls for movement execution.

Other solutions are robot suits, also called "exoskeletons" (best known representative is HAL 5 Cyberdyne, Japan). They are outstanding universal, mobile and space-saving.

Other solutions are balancers. However, these only become complete lifting devices in connection with devices to which they are typically suspended.

The object of the invention is to find a possible universal, simple, mobile, space-saving and cost-effective lifting device, with the help of which a person can carry out the recording, moving and storing objects largely in a natural way and with substantial relief of their musculoskeletal system.

The object is achieved by a lifting device is used in the form of a mobile frame with two support arms. Between the support arms, a human operator positions himself so that the support arms project from the rear right and left past the operator with their ends to the front. Alternatively, the operator can also position himself in front of the lifting device such that the support arms are directed at him from the front and the ends protrude directly in front of him.

On each support arm (typically at its end) is a lifting means which can be moved at least vertically up to an upper stop and on which a preset force acts upwards. The operator is connected to the two lifting means with his hands or arms so that he can move them in space with physical strength and / or body weight in a largely natural way.

In order to grasp and lift an object, the operator must first position the lifting device so that the gripping points of the object can be grasped with the aid of the lifting means and then the lifting means can still be moved upwards. The operator must assume such a position in which he can connect his hands or arms with the lifting means and in which he can naturally grasp the object and move in space.

The pre-set forces acting on both lifting means aim to hold the lifted object by means of these forces. The potential difference between these forces and the weight of the article must compensate the operator by physical force, which represents a significant relief for the support and musculoskeletal system of the operator with appropriate presetting of the forces acting on the lifting means.

In order to bring the lifting means on the still lying and non-gripped object zoom, the operator must overcome the entire force acting on the lifting means, preset forces by physical force. This is done with an appropriate arrangement in such a way that the operator is supported on the lifting means and moves it with metered body weight down or up. The resulting burden on the musculoskeletal system is low because there is a support.

The lifting means may take the form of loops or upwardly open support shells. In these cases, they attack the operator's hands or arms while holding the object to be lifted by the operator's hands or arms. Further, in these cases, an additional force of the operator essentially in the hands and arms is required. However, this is due to the relief of the rest of the body for the burden of the musculoskeletal system less critical than lifting the article without tools.

The lifting means may take the form of load-handling means (eg hooks) which directly hold the object to be lifted while at the same time guiding the load-handling means with his hands or arms.

By connecting the hands or arms of the operator with the lifting means, the operator can also pull the lifting device with physical force on the ground, push or rotate. In this way, the object to be moved can be transported by means of the lifting device.

The lifting device requires incl. Operator only little space more than the operator alone. So it is easy to use in narrow areas.

Tilting of the lifting device is prevented either with counterweights or suitably placing feet of the device. The latter case is z. B. before, when the achievable by the lifting means area is completely above the limited by the feet of the device level.

In addition to the connection of the hands with the lifting means can exist for the purpose of better movement of the lifting device and / or their additional protection against tipping further connections with the operator in the form of stops, straps, ropes or straps on the lifting device.

Compared with known handling devices, the present invention is characterized by its space-saving possibility of positional integration of the operator in the lifting device. Further differences of the invention over handling devices are the elimination of any controls during the lifting process and the most simple control, which consists only in the default of the forces acting on the lifting means.

Compared to exoskeletons, the present invention is much simpler and thus significantly cheaper.

Unlike balancers, the invention describes a complete lifting device.

The invention is explained in more detail below by an application example.

In the accompanying drawing shows ( 1 ) Such a lifting device with an operator. This is positioned and connected to the lifting device so that with its help it can pick up an object, move it around in the room and put it down again. The two support arms ( 2 ) of the lifting device protrude laterally past the operator, their ends are laterally in front of the operator within reach.

To each support arm includes a fixed to the lifting spring ( 3 ) whose rope ( 4 ) via pulleys ( 5 ) with a loop ( 6 ) is connected as a lifting means. In unused condition, the loops are pulled up to a stop.

The operator places his arms in the loops when they are in the highest stop position. To grasp an object lying in front of him, he presses by means of physical force against the tensile force of the spring pulls his arms held by the loops down so far that the object can be tackled and lifted with his hands or arms. After lifting the object, the operator can move it largely free in the room with his arms. In the example, the lifting assistance of the lifting device acts solely on the arms of the operator.

The operator can continue to walk normally with the lift while holding the item with their assistance. He pulls the lifting device with the loops in his direction. For this purpose, the lifting device on rollers ( 7 ) assembled.

The storage of the object takes place in a natural way by navigating the object with the hands or arms to a storage location and letting go of the object. The operator then pulls the loops with his arms up to the upper stop position and then pulls out the arms.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1899256 B1 [0003]
• DE 000009100079 U1 [0003]

Claims (11)

Lifting device for supporting lifting operations in the form of picking up, moving and depositing objects by a person, characterized in that - the lifting device is a mobile frame with two obliquely or horizontally protruding support arms attached thereto, with lifting means being mounted on each support arm, that the support arms and lifting means are arranged such that a human operator can position himself backwards between or under these on or in the lifting device and then both lifting devices are positioned in front of the operator in an area reachable by the hands or arms, - that each lifting means at least is vertically movable up to an upper stop, - that the lifting device has at least one component which is designed so that on each lifting means an upwardly acting, not influenced by a human operator during the lifting force is applied, that both lifting means are designed so that a human operator can connect one arm with a lifting means and his other arm with the other lifting means in order to grip and move in space a displaced object, Lifting device according to claim 1, characterized in that at least one lifting means has the form of a loop. Lifting device according to claim 1, characterized in that at least one lifting means has the form of an upwardly open support for a part of the human arm. Lifting device according to claim 1, characterized in that at least one lifting means is a load-receiving means with which an object can be directly recorded, held and stored. Lifting device according to one of the preceding claims, characterized in that the two support arms are formed independently of each other horizontally and vertically movable. Lifting device according to one of the preceding claims, characterized in that at least one lifting means hangs on a cable, which is connected via pulleys with a mounted on the lifting assembly and pulled out connected. Lifting device according to one of the preceding claims, characterized, in that the upward force acting on each lifting means is exerted by at least one of the following assemblies: - spring tension, - gas spring, - elastic rope, - other type of spring, - counterweight, - electric drive, - hydraulic drive, - pneumatic drive. Lifting device according to one of the preceding claims, characterized in that it has at least three feet, two of which are arranged so that an operator can position and move between them during the lifting operation. Lifting device according to one of claims 1-7, characterized in that it carries a counterweight. Lifting device according to one of the preceding claims, characterized in that it contains stop elements and / or straps and / or ropes in such a way that thus further connections with the operator are possible. Lifting device according to one of the preceding claims, characterized in that at least one support arm is formed fold away.

Images