DE7713637U1 - DEVICE FOR MANUALLY MOVING LOADS - Google Patents

Description

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J ■ ~ Ε K. Bartels

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APPROVED REPRESENTATIVES BBM EUROPEAN PATENT OFFICE

REPRESENTATIVES BEFORETHE EUROPEAN PATENT OFFICE

MANDATAIRES PRES L ¹ OFFlCE EUROPEEN DES BREVETS

Lange Str. 51, D-7000 Stuttgart

Tel. (0711) 296310 and 297295

Telex 0722312 (patwo d)

Telegram address:

tlx 0722312 Wolff Stuttgart

Vhiur. Brandes: Headquarters Munich September 1, 1981 75O8sff
Registration number. 125

? inna JOHANNES FUCHS, 7257 Ditzingen (Baden-Württemberg)

Device for manually moving loads

The invention relates to a device for manual movement

of loads,

a) with a vertical column to which a boom is connected pivotably about a vertical first axis,

5b) which has an inner and an outer arm that extends around a vertical second. Axis are pivotally connected to each other and

c) of which the outer arm carries a load suspension device at its free end,
d) which can be raised and lowered by a lifting device,

e) which can be operated by hand,

f) with a handle to swivel the arms around the vertical axes and

g) with a locking device for both arms of the boom. Such a device is known from D3-PS 800 032.

Post office Stuttgart 7211-700 bank code 600 100.70 Deutsche Bank AG, 14/286 30 bank code * 6 {A 70 ^ 70 '

Information and orders over the phone are only binding after written confirmation

In this known device, there is a locking device
from a bolt that is used to hold the inner and outer arm in place. However, this is only possible if the L two arms are aligned one above the other in their rest position in a certain radial direction. The handle ^ is here designed as a second axis about the vertical rotatable hand \ wheel, so that the force acting on the handwheel hand \ at the load receiving means suspended load to any point {

t a horizontal plane across the length of the outer J

given the gear ratio | relationship can move. However, this means that the inertia |

forces when pivoting the outer arm around the second axis |

with an increased by this unfavorable transmission ratio.

ßerten force can be overcome, which is the case with large loads on the |

memittel hanging loads can be very detrimental. ■ '

There is another disadvantage of this known device

in the fact that if one of the two pivot axes is not exactly \

is aligned vertically, on the boom a horizontal |

Component of the load hanging on the load handling device engages, |

so that the boom can set itself in motion, |

which can also lead to accidents with large loads. §

In contrast, the utility model is based on the task of |

i to provide a device for manually moving loads, f,

with which a load is very convenient with a minimum of effort | can be moved by hand and still do a self-actuating | term movement of the load hanging on the load suspension device very f

f can easily be prevented, even if a vertical pivot axis of the boom is not exactly vertically aligned. |

This object is achieved according to the invention by the combination of ^s of the following features:

h) that each of the two axes is assigned a brake,
i) both of which can be switched by a common switch,
k) that the handle to operate the lifting device by one
horizontal axis is pivoted and

1) that the switch and the handle are arranged at the free end of the outer arm.

Because, according to feature h), each of the two axes is assigned a brake, the boom can be set in any position of its arms so that an automatic one even if one of the two vertical axes is not very precisely aligned vertically Movement of the cantilever arms can be prevented at any time by tightening the brakes. In addition, by releasing the brakes, both arms of the boom can be moved into any position without frictional resistance, so that the movement of the load hanging on the load handling device in a horizontal plane is practically no forces other than inertia forces. Because, according to feature i), the two brakes can be switched by a common switch, an extremely simple and optimally effective control of the two brakes is achieved. The fact that, according to feature k), the handle for operating the lifting device is pivotably mounted about a horizontal axis, it is achieved that the same handle with which the load is moved in the horizontal plane can also be used for this purpose by means of a pivoting movement in the same direction to lift or lower the load up or down using the lifting device.
Because according to feature 1) the handle is arranged at the free end of the outer arm, it is achieved that the hand attacking the handle engages the load almost directly, so that the hand can only move the load directly in a horizontal plane the inevitable forces of inertia that occur in the process must be overcome.

Because, according to this feature, the switch is also arranged at the free end of the outer arm, these two can so be arranged close together so that they can both be operated by one hand, which makes the operation of the device essential simplified. Above all, the operator can now press the switch to intervene immediately when he lets go of the handle

apply the brakes so that there is no need to fear that the load will be self-acting after releasing the handle sets in motion.

The combination of features h) to 1) thus results in the surprising in a device according to features a) to g) Advantage achieved that a heavy load can be moved by hand in a convenient manner to any position can, whereby only the inertial forces of the load have to be overcome for the movement in the horizontal plane and there is no need to fear that when you let go of the load, it will automatically set itself in motion.

The invention is detailed in the following description of an exemplary embodiment shown in the drawing explained.

The drawing shows a perspective view of the exemplary embodiment .

The embodiment shown in the drawing of a device according to the invention for manually moving loads has as the first axis a vertical column 1, which at its upper end is a two-armed, from an inner one Arm 2 and an outer arm 3 has existing boom, the outer arm 3 at its free end a load suspension device wearing. In the illustrated embodiment, the free end of the outer arm 3 is provided with a connection plate 4, To which a load handling device, e.g. a load hook, a gripper, tongs or the like, can be screwed.

The column 1 consists essentially of a lower part 5, which is provided at its lower end with a base plate 6, by means of which the lower part 5 on a base, e.g. on a base 7 or on the floor, and from an upper part 8, which around a first vertical axis 10, namely the axis of column 1,

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is rotatably connected to the lower part 5. On this upper part 8 is the inner one, designed as a parallel program linkage Arm 2 of the boom is pivotably articulated in its vertical plane. This inner arm 2 consists essentially of zv / ai the long ones Sides of a parallelogram forming long legs 9 and 11 and a vertical short leg 12. The two long legs Legs 9 and 11 are pivotally connected to the upper part S of the column 1 about axes 13 and 14, the two axes 13 and 14 are arranged exactly vertically one above the other, so that the part of the column 1 lying between these two axes with the legs 9, 11 and 12 forms the second vertical leg of a parallelogram. The long legs 9 and 11 are also connected to the vertical leg 12 so as to be pivotable about horizontal axes 15 and 16. On the lower long leg engages the piston rod 18 of a hydraulic cubic cylinder, which is pivotably connected to this about a horizontal axis 17 on, which is also connected to the upper part 8 of the column 1 so as to be pivotable about a horizontal axis 21.

The vertical leg 12 of the inner Auslegerarir.es 2 forms a = second 'vertical axis 22, about dis the outer arm 3 is pivotable In addition to the connection plate 4 of the outer cantilever arm 3, a lever 23 pivotable about a horizontal axis is arranged, by means of which the hydraulic lifting cylinder 19 can be actuated. The arrangement is provided so that in the middle position of the lever 23, the pressure medium supply lines to the hydraulic cubic cylinder 19 are closed, so that the inner boom 2 is held in the set inclination and in its vertical plane can not be pivoted. If the lever 23 is pivoted upwards, the valves of the hydraulic lifting cylinder 19 is operated so that the pressure medium pivots the inner boom 2 upwards. Accordingly when the lever 23 is pivoted downward, the inner extension arm is pivoted downward.

To manually apply a load using the device shown move, this is attached to the load handling device, not shown in the drawing, or gripped by it. then the lever 23 is pivoted upwards so that the load is raised to the desired height. If this height is reached, the lever 23 is pivoted back into its central position. Now the load-bearing free end of the can by means of the lever outer extension arm 3 in the now set horizontal plane on any paths by hand in any position be moved by the two cantilever arms 2 and 3 correspondingly around the first vertical axis 10 and the second vertical Axis 22 can be pivoted. If the load has reached the place where it is to be deposited, all you need is Lever 23 to be swiveled downwards in order to be able to lower the load to the desired point along an arc, in the arrangement shown with the extension arm 2 which is essentially horizontal in the normal working area, only one has very little vertical component caused by holding the load or the load suspension device is extremely easy

is correctable.

The upper part 8 of the column 1 can also be designed as a lower part of a modified column, for example on aer the ceiling of a room by means of a floor slat 6 corresponding Plate can be attached. The vertical axis 10 can also be realized by any joint that is attached to a tracer, Z.3. On a wall or the like. Is attached.

The inner cantilever arm 2 can also be designed simply, that is not as a parallelogracsage rod, and almost with the upper one TaU 8 of pillar 1 can be connected in such a case exe load can only be moved in a horizontal plane. In order to be able to lift the nose, the .frei end of the outer Cantilever arm 3 a lifting device, not shown in the drawing, can be provided, which the load handling means wearing. Such a lifting device can be, for example, a rope that

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is actuated by a winch provided in the column 1. Any other lifting device can also be used be arranged at this free end of the outer boom 3 to the load connected to the load suspension device in raise or lower a desired height.

In a further modification of the illustrated exemplary embodiment a mechanical adjusting device can be provided instead of the hydraulic Hubzvlinder 17, mictels the inner extension arm 2 of which can be set in different, but then fixed inclinations.

For each of the two vertical axes 10 and 22, a brake 25 or 26, indicated schematically in the drawing, is provided, which can be switched electrically by a switch 27. This switch is shown as a toggle switch and is can therefore be operated mechanically by hand. For this purpose it is arranged directly next to the lever 23.

But the switch can also be designed so that the brakes 25 and only by touching the lever 23 by hand 2t> be switched off.

^Ss can also be permanently spawning, non-switchable brakes 25, 26 for the two axles 10 and 22 to prevent automatic movement of the load on the lifting device if the axles 10 and / or 11 are not exactly vertically aligned.

- 8 / claims for protection

Claims (3)

- 8 claims for protection 1. Device for manually moving loads a) with a vertical column to which a boom is connected pivotably about a vertical first axis, b) which has an inner and an outer arm, the about a vertical second axis pivotable with one another are connected and c) vpri which the outer arm at its free end a load suspension device wearing, d) which can be raised and lowered by a lifting device, e) which can be operated by hand, f) with a handle to swivel the arms around the tical axes and g) with a locking device for both arms of the boom, characterized by the combination of the following features: h) that each of the two axes (10 and 12) has a brake (25 or 26) is assigned, i) both of which can be switched by a common switch (27), k) that the handle (23) for actuating the lifting device (19) is mounted pivotably about a horizontal axis and 1) that the switch (27) and the handle (23) are arranged at the free end of the outer arm (3). 2. Device according to claim 1, characterized in that that the switch (27) and the handle (23) are arranged directly next to one another. 3. Apparatus according to claim 1, characterized in that by touching the hand lever (23) the brakes releasing electrical switch is provided. 1111 111)