Lifting device for moving the stack of products, packaging or cargo

 

The invention relates to lifting devices for gripping and moving the stacks of products. The lifting device has an essentially horizontally passing a support, forming a bearing surface and containing at least two of the support element (2), as, for example, two prong forks to support the stack, the lifting element (11) is movably connected to the support elements (2) and is arranged to move in a vertical plane, and the connecting device (1) for flexible connection of the support elements (2) with a lifting element (11). Each supporting element is made with two guide pins located one above the other on the vertical part of the support element. The connecting device has a guide slot, consisting of the vertical part to move the pins up and diverging up parts for the swivel movement of the pins. The technical result is increased comfort grip stacked in the stack tray. 4 C.p. f-crystals, 8 ill.

The present invention relates to a lifting device for moving the stack of products, packaging or cargo containing

- essentially horizontally passing the support, the image is the possibility of movement in the corresponding first vertical plane, as, for example, two prong forks for supporting the stack during capture, transportation and stacking of the stack, while the supporting elements during capture is inserted under the stack on one side of the pile, and while laying pulled from under the stack with the specified hand,

- lifting element movably connected to the support elements and arranged to move the second vertical plane, and

- connecting device for flexible connection of the support elements with the lifting element.

For transportation of assorted products, such as eggs, vegetables or fruit, usually use the trays. These trays are made of flexible material so as not to damage these products. In addition, this material can very conveniently be shaped in any desired form. The notches thus made between the slots and the edges on the sides, give the possibility to successfully put these trays on each other, usually forming a stack of six trays. In addition, the teeth of the bale fork can be easily inserted into the recesses for lifting one or more trays.

The disadvantage is that you may receive cases, the formation of uneven stacks of stacks, i.e. stacks,kotoroe time when, for example, humidity can cause bowing of the parts bins.

In these cases, it is difficult to capture such piles and also putting them one on top of another. The latter may occur, for example, in the case of loading of pallets.

It is well known the use of fork attachments for transporting stacks. Specifically, from DE 2935553 known moving obliquely arranged stacks, especially the loaded pallets. This patent shows a fork lifting device, in which each of the teeth constituting the fork and constantly aimed horizontally, made with the possibility of inserting such a way that you can capture inclined spaced pallets and, if necessary, to lay them obliquely. To this end, each support fork-lever connected with the corresponding guide vertical so that in quite some vertical spacing is usually not very large, it is during the insertion will be successfully and easily positioned at the height of the insertion. In particular, the hook node of the teeth and the lever is connected with the specified guide lifting by means of a parallelogram connection.

In addition, there is bias is back this loaded prong, and in the unloaded state largely compensates for the weight of the structure. Thus, in the case of inclined spaced trays teeth, inserted at offset heights, press one of the layers on the pallet, then you can safely raise.

These teeth were unsuitable for gripping and stacking the trays. During capture and stacking piles of trays respectively with those stacks of trays and stacks of trays, which are located below not quite vertically, the teeth of which are horizontal and are suitable for moving structures, remaining essentially rigid, as for example, pallets, will not be able to provide its reliable inserting, moving and stretching. As a consequence, the stack can deviate from the vertical and, therefore, even overturn.

To overcome this difficulty during capture or stacking trays proposed lifting device to move the stack of products, packaging or cargo containing at least two of the support element for supporting the stack during capture, transportation and stacking of the stack by entering them during a seizure under the stack from one side of the stack and pulling during installation from under the stacks of the same is placement in a substantially vertical plane, which according to the invention is a sliding connection between each supporting member and a lifting element contains the first elements to move the support element relative to the elevating member up and second members for rotation of the support element, and a movable connection is made with the possibility of providing during capture or stacking piles of free movement of one support element relative to the lifting element essentially vertically upwards, and after this movement of the support element relative to the lifting element essentially vertically upwards during capture or stacking of the stack with the possibility of free rotation of one support element around an axis perpendicular to the vertical plane, where is this supporting element.

Preferably, each support element was made in the form of two prongs of the forks.

Preferably, flexible connection between the supporting elements and the lifting element contained two guide pins located one above the other on one support element and the guide slot in the lifting element to the direction of movement of the pins in the guide slot during capture or uker, and diverging upward part of the slot for the rotary movement of the pins.

It is possible that the angle of divergence of the divergent part of the slot relative to the vertical direction was not more than 20°.

It is advisable to guide the cut was made in the case of rolling the joints of the support elements and the lifting element mounted on a support lifting element.

Preferably, the housing is movable joint of the supporting elements and the lifting element was installed on the pipe, is arranged to move on the support of the lifting element.

It is desirable that the specified pipe was installed finger, set with a possibility of movement in available in lifting element mounting slots for providing horizontal movement of the pipe on the support of the lifting element.

Using this device successfully achieved that during capture or stacking stacks of that package or on the top of the package, which is not quite horizontal, one or more supporting elements or teeth adjacent to the existing support surface, so that there is no force pushing piles, or inserting or pulling teeth, and stacking and other new tray filling products requiring careful handling, for example, eggs, fruits or vegetables, these products are not damaged.

Using the claimed combination of pins and slots easily accomplished free movement in the upward direction and in the direction of rotation. During capture stacks of trays teeth can easily adapt to the hollows, and during installation of the pile supporting elements or teeth can be stretched without resistance, after which they are under their own weight will move back to its original position or the position of the stop.

Hereinafter the invention will be described in more detail with reference to the accompanying drawings, on which:

Fig.1 depicts a General, perspective view of the lifting device,

Fig.2 more specifically shows the lifting device according to the present invention in section along the line 1-1 in Fig.1 along the vertical plane in which there are moving,

Fig.3 is a perspective view of a second exemplary variant embodiment of the invention,

Fig.4 is a side view of two differently oriented stacks,

Fig.5 shows a pallet of differently oriented layers of the stacks of trays,

Fig.6 is a side view of two equally oriented stacks,

Fig.7 is a magnified image of a portion In view of Fogo device 10, in particular, vertical lifting element 11 with a support 12, on which the connecting device 1 by, for example, adjusting screws 13. Using a mounting block 4 is the connecting device 1, comprising a housing 3, provides a movable connection of the support elements 2. The supporting elements or teeth form a bearing surface, in particular, the fork, whereby the stack or the cargo can be moved up or down when moving the lifting element 11.

In Fig.2 shows more detail of the connecting device according to the invention. The drawing shows a view in the direction 1 of the section in a vertical plane, which is shown by arrow a occurs essentially vertical movement of the forks, in particular one support element or prong 2.

On a support 12 mounted the connecting device 1. In the housing 3 of the said connecting device has a guiding hole for a bearing 12, so that the housing 3 can be moved and fixed at the desired length by width by means of an adjusting screw 13. On the lower side of the housing in the mounting block 4 of its vertical part is suspended from the support element or prong is the second part are two guide pins - the upper guide pin 5A and the lower guide pin 5b. As shown in Fig.2, these pins are arranged with a direction perpendicular to the said vertical plane. In the housing 4 made a guide slot having a vertical portion 6 and the widening or diverging up part 7. The pins 5A, 5b are made of such size that they can freely move up and down in the guide slot. In addition, when the upward movement of the pin 5A is in part 7 and can be rotated or tilted to the left or right depending on the direction of the pushing force. The angle of rotation or tilt is determined by the degree of divergence of the part 7 and the dimensions of the upper pin 5A.

In the position shown, the prong 2 is suspended in its lower position to stop or initial position. In addition, as shown, the part 7 is not symmetric, i.e., on a vertical incision extending to the left side starts earlier than the extension in the right direction. This is useful because as soon as the end of wave 2 will come into contact with the surface during the push, the pins will not remain stationary in the guide slot, and after the pin 5A will be at the extension level, prong ESA will bend to the right, to the right, ending in a little more in the height of the straight part 6.

From the drawings and foregoing description it's easy to understand the following principle, for example, during installation.

When the pile with a fork gripper teeth 2 will be in their lower position due to the fact that the teeth will be pressed down into the grooves under the action of the weight on the merits of this stack. As soon as you put the stack on the nearest stack, the ends of the prongs 2 will be slightly rise during installation and, as shown in the example in Fig.2, will be able to turn to the left. If below the stack of trays will be essentially vertically, then the trays are placed on top of it, will be located at the exact landing on their edges, after which the teeth 2 can be pulled out from under him in a horizontal direction. Teeth under the action of their own weight will move back to their original position or the stop position shown in Fig.2.

On the other hand, when the downstream stack will not stand quite upright, for example at an angle of 5° to the vertical, the ends of the prongs 2 when laying will first little rise and, in addition, to bend in the permitted direction. This free rotation in part 7 of the authorized upper surface downstream of the stack. In this case, the trays will also be end-to-end arranged on their edges, after which the teeth of the forks can be freely stretched without causing any damage.

As will be clear to any expert in this field, you can optionally choose the dimensions of the guide slot. Thus, as shown in Fig.2, part 7 is not completely symmetrical, and the divergence angle calculated in relation to the vertical axis of the wave is about 20°. The height of the part 6 of the guide slot is preferably a few centimeters, and the divergence angle of the part 7 is equal to not more than 40°, preferably not more than 20°.

In another exemplary variant embodiment of the invention shown in Fig.3, instead of installing on the support 12 by means of the adjusting screws, the casing 3 is now located at the pole or pipe 14, which can telescopically move along the support 12. In this case, each of the housings can also be installed separately on such pipe. When you move this pipe 14 remain constant spacing and, consequently, between the teeth, respectively, but shifted the position of insertion of each prong 2. As installed, it is very suitable for stacking and RA is the function or square shape. As shown in the side view in Fig.4, the trays have two different sides. On the so-called P-side products intended for nest trays are placed differently than on the so-called Q-side. The stack of trays, which usually consists of six trays stacked one on top of another, the trays 16 typically have the same orientation. At the side of such a package is called a P-stacked, or Q-stack. The number of stacks that are located end-to-end, forming a layer. C., depending on the orientation of the stacks in the layer, the layer is called PQP-layer, PPP-layer or QQQ-layer. In Fig.5 shows the tray, which is located six layer stacks with alternating PPP-layers and QQQ-layers. Often the layer stacks additionally cover the empty tray, the so-called covering the tray or sheet 17, usually made of corrugated cardboard, acting as an intermediate sheet to make the layer stacks greater sustainability. Alternating the location of the ECD layers and QQQ-layers or alternating the location of the PQP-layers and QPQ-layer not only provides a highly stable stacking stacks of trays, but also accordingly prevents deflection of the intermediate sheets. This deflection of the intermediate sheet 17 while laying two equally oriented stacks shown in Fig.7, which shows felicienne image part And Fig.4, showing laying on each other two differently oriented layers. As is clear from Fig.8, the intermediate sheet 17 in contrast to that shown in Fig.7, almost not bent, if at all bent.

Due to the above-described various sides of the trays teeth 2 supports if necessary, capture P-stacks of trays must take a position other than the position if necessary capture Q-stacks of trays. These different positions of teeth clearly shown in Fig.4.

This telescopically moving the pipe 14 has a big advantage when laying or disassembly of the piles, stacked in layers in this way.

Moving the pipe 14 to the support 12 can be successfully carried out using the finger 15 installed on the pipe. For example, each time for a “package R” should “package Q”, or Vice versa, the finger 15 can pass through the installation slot, which allows for horizontal movement of the finger. As will be clear to any person skilled in the art for this purpose can be used plates respectively performed by the slots located on the side of the lift station, part of which forms a lifting device. This operation can be performed under autopoles 15. In addition, there may be provided means, which is necessary to overcome some friction to move and to hold the tube in place during lifting operations.

In addition, the device according to the invention can be equipped with sensors that can determine the height and angles, so that as with manual control and automatic control could deliver warning signals and the corresponding regulation, when the values of the height and angles are outside the valid and the specified limits.

As will be clear to any person skilled in the art that minor changes are considered to be within the scope of the present invention, as set out in the accompanying claims.

Claims

1. Lifting device for moving the stack of products, packaging or cargo containing at least two of the support element for supporting the stack during capture, transportation and installation by entering it during a seizure under the stack from one side of the stack and pulling during installation of the piles with the same hand, while the supporting elements movably connected with a lifting element which has a capability is in with a lifting element, characterized in that a movable connection with the elevating element, each support element is designed with two guide pins located one above the other on the vertical part of the support element and the connecting device has a guide slot, consisting of the vertical part to move the pins up and diverging up parts for the swivel movement of the pins.

2. Lifting device under item 1, characterized in that the angle of divergence of the divergent part of the guide slot relative to the vertical is not more than 20.

3. Lifting device according to any one of p. 1 or 2, characterized in that the guide slot is made in the case of a connecting device mounted on a support lifting element.

4. Lifting device according to p. 3, characterized in that the housing of the connecting device is installed on the pipe, is arranged to move through the support of the lifting element.

5. Lifting device according to p. 4, characterized in that on the specified pipe installed finger located in the corresponding mounting slot, to provide horizontal movement of the pipe on the support of the lifting element.

 

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