FI74445C - Device for handling packages with elongated goods, especially wooden goods packages - Google Patents

Description

j 74445

The present invention relates to an apparatus for handling bundles of elongate objects, in particular bundles of timber, on a short side, the device comprising a frame-like transfer device adapted to be mounted on a transport member or a fork, e.g. a fork, e.g. and designed to support a bundle of timber during this handling and which can be placed in a suitable position in front of a loading opening in a shelf provided with wheels for moving and supporting the timber bundle so that the timber bundle can be moved between the transfer device and the shelf by rolling from the rollers in the transfer device to the rollers at least one support arm to support it as the goods are moved to the shelf.

In connection with the handling of timber stacks, for example in a timber truss warehouse, where the stacks are placed on shelves, the handling of the stacks usually takes place as they rest on an elongate base. This base, also called a transfer device, which extends in the longitudinal direction of the stack is of a certain length and corresponds to a certain part of the length of the stack.

Usually, the platform is provided with transverse rollers 1a on which the stack rests, and a platform is used which is adapted to be lifted and driven or, for example, by means of a fork-lift truck. To move the stack from the pallet to the shelf, the truck is driven into a position relative to the shelf so that the pallet is aligned with the shelf opening and the end of the stack is as close as possible to the shelf opening. The elongate stack of goods can then be rolled off the base into a shelf provided with rollers for moving and supporting the stack.

2 74445

When the stack is moved from the platform, as it rests on the forklift, at a certain waste opening, there is a weight shift along the platform, and when the stack has reached some distance into the shelf opening and rests only on the platform end, this weight shift easily causes the forklift support 11e to become too large. lateral loads, and in unfavorable cases the truck can tip over. This is especially a problem when placement on a shelf occurs high above floor level, with stack insertion usually supervised by persons staying on temporary levels. The forks of the truck are then located high above the center of gravity of the truck, which results in a long torque arm which can be affected by the resulting tipping force.

U.S. Pat. No. 3,549,025 discloses a load stabilization device comprising means which press against a flat portion of a shelf at which a forklift truck loads from or to a shelf on rails. However, the stabilizer 1 only supports by preventing tipping in the vertical plane, but it is not able to resist the reaction forces that can occur in the horizontal plane when the movement of the timber bundle is inhibited during the loading operation.

U.S. Pat. No. 3,738,506 discloses a storage system which takes into account the order of loading and unloading and which comprises a belt conveyor, a stacking crane and a stacking tower. The crane structure includes a hydraulic locking mechanism with which the transfer means are locked at the respective storage cell. The locking device is used here to press the frame structure belonging to the crane against the opening of the shelf. Overall, the mechanisms are expensive and complex.

The object of the present invention is to eliminate the above-mentioned torque problem with a simple structure.

3,74445

The object is solved by a device of the type mentioned in the introduction, which according to the invention is characterized in that the support arm comprises a substantially hook-shaped member which can be attached to a .

Such support arms ensure that the chassis and, accordingly, the truck are skewed and possibly overturned, although the distribution of the load changes during the introduction or stacking of the timber stack.

It will be appreciated that the support arms may have any suitable shape as long as they fulfill their support function, but are preferably made to form an extension of the base in the longitudinal direction thereof.

Easy use of the arms can be achieved if they are telescopically movable in the guide members on the base.

The operator can then, after driving the truck to the position at the rack opening, pull out the support arm or arms so that they engage the corresponding support members on the rack. The gripping can be realized in a simple manner by arranging a hook-shaped member at the outermost of each support arm and likewise arranging a support iron below the shelf opening, to which the support arms can be attached by hooks. When the support arm is pulled out, the hook can grip the support iron by lowering the base with its load appropriately.

The invention will now be described in more detail with reference to the accompanying drawing, which shows an embodiment of a device according to the invention.

, 74445

Figure 1 is a schematic drawing of a waste warehouse in which an embodiment of a processing device according to the invention can be used.

Figure 2 shows on a larger scale a detail of a device according to the invention.

Figures 3, 4 and 5 show a side, top and end view of the device according to the invention.

Figure G shows a device according to the invention used in connection with a crane.

In Fig. 1, reference numeral 1 denotes a storage shelf as seen from the end. The storage shelf 1 is constructed to accommodate a plurality of elongate stacks of goods, for example timber packages, which are placed inside the shelf or removed either from its end or from one long side through suitable shelf openings. Figure 1 shows a first wood stack 2a placed in an upper position on a shelf, while a second timber stack 2b is just placed in a lower wreck position.

For each shelf wall, shelf rollers 3a, 3b, 3c, 3d are arranged 4a, 4b, 4c, 4d, etc., respectively, which act to move and support the respective stacks of goods. The shelf rollers 3a-3d, 4a-4d are suitably mounted on the vertical hybrid rings 5a, 5b, 5c, 5d, and their width corresponds to: a predetermined shelf opening.

In order to position said timber stacks in front of the selected hy 1 site, the stacks are treated one by one on an elongate base, in particular on a transfer device 6 extending in the longitudinal direction of the stack and having a length corresponding to a certain part of the stack length. The transfer device 6 has the shape of an elongate frame structure, as shown in more detail in Figures 3, 4 and 5, and is provided with transverse rollers 7a-7e on which the stack 2b rests (Fig. 1). The transfer device 6 is also provided with a fork guide 11a 8a, 8b, which enables the forks 9a of the fork-lift truck 9 to be inserted, so that the transfer device 6 can be lifted and driven by the fork-lift truck with or without the timber stack 2b.

As shown in FIG. The transfer device 6 further comprises support arms 10a, 10b which are adapted to engage the support members 11a in the storage shelf 1. As shown in Fig. 1, the stack 2b can therefore be moved between the transfer device 6 and the shelf 1, while the transfer device is at that shelf opening due to the adhesion between the support arms 10a in the transfer device and the support members 11b on the shelf. In Fig. 2, which on a larger scale shows a section of the end part of the transfer device 6, the extended support arm 10a is provided with a hook-shaped member 12 fixed to the support member on the shelf 1, i.e. the support iron 11b. The support arm 10a is adapted to be moved telescopically in a cylindrical guide member 13 fitted to the transfer device 6, and to move the stack 2b from the transfer device 6 to the shelf 1 the support arm 10a is pulled out of its retracted position so that the hook-shaped member 12 aligns with the support. after which the fork 9a with the transfer devices 6b is lowered so much that the arm 10a will rest on the support iron 11b. The support arm 10a ensures an unfavorable load and possible overturning of the transfer device 6 and accordingly also the fork lift truck 9, although when the timber stack 2b is transferred from the transfer device 6 into the shelf 1 a load distribution shifts, which in the worst case could cause the forklift truck to tip over. Such a situation can easily arise when the stack 2b has entered the cooling opening some distance, for example as shown in Fig. 1, but the support arms 10a ensure the transfer. .____ _________. ι. --- 6 74445 to close the device 6 in the area of the shelf opening, so that the possibility of the truck 9 tipping over even when loading into the upper shelf positions is elim.

It will be appreciated that the support arms 10a 10b may have any shape as long as they fulfill their support function, but for long stacks of goods which are fed laterally inside the shelves, it is most suitable that the arms form an extension of the transfer device in its longitudinal direction.

However, it is also to be understood that such a transfer device may be designed for floating and loading stacks of goods having dimensions other than those shown in Figure 1, in which case the shape of the transfer device is also non-elongate, and thus the support arms may be located other than above. .

In order to facilitate the retraction and floating of the support arms 10a, respectively, each support arm is provided with a handle 14, and the manual force can be reduced to a minimum by bearing the support arms 10a, 10b on the roller-1a guide elements 13 in the cylinder.

A further advantage is achieved by a transmission device 6 with electrically driven rollers 7a-7e, as shown in broken lines at the electric motor 15 in Figures 3 and 4. The transmission from the electric motor 15 may conveniently take place by a chain transmission, which may suitably be protected by a frame structure. Such a built-in chain transfer has the advantage that the fork-lift truck can engage on both sides of the fork guide member 8a, 8b, which substantially simplifies the handling operation.

7 74445

As shown in Figures 3, 4 and 5, the transfer device 6 also comprises four lugs 16a, 16b, 16c, 16d adapted to engage the four mounting grooves in the crane carriage 17, as shown in more detail in Figure 6. The crane carriage, which is a hoisting cable 18 four legs 19, two of which are shown in Fig. 6 and at the lower end of which a fastening grapple 2a is fitted, which crane 17 can be made to grip the transfer devices when the carriage 17 is suitably driven above the stack 2c to be loaded, i.e. lowered and moved in the direction of the stack 2c - \ to the ears 16a, 1Cd in tea 6.

The handling of the goods stack 2c is performed in a manner substantially similar to that of a fork-lift truck 11a, whereby the transfer device 6 with the goods stacks 2c is raised in front of the shelf opening, after which the user pulls out one support arm so far that the hook-shaped member on the support arm engages The gripping is then achieved by lowering the transfer device slightly with its load until the hook-shaped member on the support arm securely grips the support iron on the shelf.

As mentioned above, the rollers of the transfer device can be provided with an electric drive, in which case the electric motor can be powered either by means of a suitable battery or by a cord taken from the power supply installed in the warehouse building. It will also be appreciated that the support arms may be provided with a remote control so that the user can automatically push the arm out a suitable distance, depending on the position of the transfer device in front of the shelf opening. The operator can then either be the crane operator or the truck driver, or an auxiliary operator who is at floor level or in another suitable position to monitor the handling operation.

8 74445

It is further understood that the stroke length of the support arms can be varied within wide limits. In the telescopic embodiment described, the length of the stroke can theoretically be made equal to the longitudinal dimension of the transfer device, but the stroke length corresponding to about half of this may be suitable for most practical purposes. It will also be appreciated that the support arms may be provided with gripping members other than those described above. For example, the gripping members may be in the form of male and female portions, respectively, which engage the corresponding female or male members on the shelf. Magnetic / electromagnetic gripping elements may be used.

Claims (2)

9,74445 Patent Requirements A device for handling bundles of elongate objects, in particular timber bundles (2a, 2b), on a short side, the device comprising a frame-like transfer device (6) adapted to be mounted on a transport member or supported by a transport member, for example forks of a forklift truck, and for: is to support the timber bundle during this treatment and which can be placed in a suitable position in front of the loading opening in the shelf (1), which is equipped with wheels for moving and supporting the timber bundle so that the timber bundle can be moved between the transfer device (b) and the shelf for rollers (4a-4d) on a shelf (1), the transfer device (6) comprising at least one support arm for supporting it when the goods are transferred to the shelf, characterized in that the support arm (10a, 10b) comprises a substantially hook-shaped member (12) ( 1) to lock the device in the area of the loading opening in the shelf and to provide a counterforce to those reaction forces which may be generated horizontally if the movement of the wood bundle is prevented during transfer. Device according to Claim 1, characterized in that a support arm (10a, 10b) is arranged at both ends of the transfer device (6), which in a manner known per se is telescopically pushable in the guide element (13) to form an extension in the longitudinal direction of the transfer device (6).