CZ20003362A3 - Multi-tine lifting implement - Google Patents

Abstract

The multi-tool lifting tool (1) comprises three or more tips (29), preferably from about three to seven spikes (29.47) preferably five to six spikes (29, 47). Tip System (27) 47) is arranged to pry and lift larger items, such as are pieces or slabs of surfaces or cement and the like, and at the same time it allows smaller objects to sink or could be shaken out of the multi-hub lifting tool (1). Stabilizer (35) reduces detrimental movements of tips (29, 47) sleeves (37, 45) and spacers (39). Multi-tipped the lifting tool (1) further comprises one or more sidewalls members (51). Each side member (51) is arranged in a direction up from the edge tip (47) or from the edge sleeve (45) at any edge of the tool (1) and in the forward direction from support member. The side member (51) is arranged and arranged behind in order to prevent objects from falling out of the prong system (27) (24,47) and the formation of a support

Description

Technical field

For lifting and moving material such as pieces of concrete or asphalt, trees or bushes and the like, it is known that there are many different devices. Vehicles of various kinds can be used to handle such as moving and lifting devices for prying, pushing, lifting, moving and releasing such materials. In certain situations, it is necessary to pry, lift and / or relocate larger materials, such as pieces of concrete, a tree with its root ball or stump, while at the same time sifting away smaller materials such as gravel or clay. For example, when removing concrete or asphalt surfaces, it is commonly required that the backing layer remain in place to create new surfaces. When a tree, shrub or tree stump is deprived of roots, whether transplanting or relocating, it is often required that most of the clay surrounding the roots remain in the original position of the tree, shrub or tree stump.

A variety of different lifting and moving accessories are available for vehicles such as a platform steer loader. One typical accessory is a digging container for digging, prying and picking up the item. A drawback of such digging containers (buckets) is the small useful length for obtaining the lever transmission required for prying and having side sides that prevent the bucket from being slid under, for example, a concrete slab at the same time. The bucket also retains all the collected material regardless of its size. Pallet forks are useful for catching objects with their wide, flat and flat foundation, but they are not suitable for penetrating under a tree or pavement and then prying and lifting them. Different types of tree digging or clamping devices are not suitable for other, lifting or prying purposes.

The object is therefore to provide a tool which can be attached to a vehicle such as a platform loader and which is suitable for both lifting and prying, while allowing smaller objects to be dropped or removed by shaking.

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SUMMARY OF THE INVENTION

The invention includes a multi-point lifting tool for attachment to a vehicle, for example a platform-controlled loader having arms or other means for moving the multi-point lifting tool up and down and / or for tilting the multi-point lifting tool towards the ground. The multi-point lifting tool comprises a coupling system for attachment to the arms, or to another vehicle support system for attaching the tool. The coupling system may be part of a support member supporting the prong system. The prong system includes a plurality of prongs having a lip extending transversely from the nearest end along the lower edge of the support system to the furthest end. The spikes extend from the nearest end to the farthest end and define cavities allowing the spike system to carry rocks, pieces of concrete or asphalt, root balls of trees or shrubs, and the like without retaining smaller objects. The tool preferably comprises a tip stabilizing member against undesired lateral or torsional movement.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows a preferred embodiment of the present multi-pointed lifting tool attached to a platform controlled loader shown in a front perspective perspective view from the right.

Figure 2 is a left rear perspective view of a preferred embodiment of the present multi-pointed lifting tool.

Figure 3 is a schematic cross-sectional view of a preferred embodiment of the present multi-pointed lifting tool of section 61-61 shown in Figure 2.

Figure 4 is a left rear perspective view of an alternative preferred embodiment of the present multi-pointed lifting tool.

Figure 3 is a schematic cross-sectional view of an alternative preferred embodiment of the present multi-pointed lifting tool according to section 63-63 shown in Figure 4.

DETAILED DESCRIPTION OF THE INVENTION

The invention will be further described with reference to the embodiment shown in Figures 1 to 5

5.

The present invention relates to a tool which, when attached to a vehicle, in particular to a loader such as a platform steer loader, rail or track loader, wheel loader, telescopic lifting truck, excavator, tractor, and the like, can pry and lift objects such as are concrete or asphalt slabs or surfaces, pieces of concrete or asphalt, rocks, stumps, small trees and the like. The tool is mounted on the arms or other device to move the tool up and down and tilt the tool towards the ground. The multi-pointed lifting tool uses a plurality of prongs which are advantageous for sliding under the object to pry and lift it, provided that they have a narrow cross-section so that it encounters a reduced resistance to the material under the pry or lifted object. there was a leverage needed to pry and lift. Rather, the prongs are designed to pry and lift larger objects and allow smaller objects to shake or fall out of the tool at the same time. The multi-tip lifting tool includes a tool-mounting support member supporting the spike system. The spike system includes three or more spikes extending forward from the support member and spaced so as to be able to pry and lift objects such as trees, stumps, rocks and pieces of concrete or surfaces, while allowing smaller objects to fall through the spaces between them . Further, the multi-tip lifting tool preferably comprises one or more side members for retaining an object in the spike system during prying, lifting or transporting.

Let us now look at the drawings. 1 and 2, a multi-pointed lifting tool 7 according to a first embodiment of the invention is shown. The multi-tip lifting tool of Fig. 1 is connected to a platform controlled loader 3 by means of a coupling system 5 known per se for attaching tools to the platform controlled loader 3 and sometimes < RTI ID = 0.0 &gt; &lt; / RTI &gt; ·· ·· ·· cited as fast connection. The illustrated coupling system 5 includes a web rib 57 on the support member 7, and apertures 59 defined by the web member 7. The web rib 57 is inclined at an acute angle, substantially downward, to the web 7. The front plate on the platform-controlled loader 3 engages under the belt rib 57 and is secured in engagement, for example, with latches, clamps, hooks or pins such that it engages the support member through the holes 59. The apertures 59 are delimited by a tapered plate member 67 and a support member 7.

Various mechanisms are known for attaching tools to such a vehicle as a loader, in one or more embodiments, the multi-tip lifting tool 1 may include a coupling system 3 suitable for attaching each such mechanism. For example, a platform steer loader and the like may include as standard equipment one of several known coupling systems for attaching tools to the loader, and the multi-tip lift tool 1 may include any of several known coupling systems 3 for connection to such known vehicle coupling systems. Some, especially heavier loaders, use one or more holes at the end of each arm to attach the tool to raise and / or tilt the tool. Each arm aperture corresponds to an aperture defined by the rear face flap, the flap aperture on the tool, the pin, and as is known, the sleeve passes through the aperture in the arm and the flap and is retained by the apertures, for example the pin. The coupling system 3 comprises arranging the flaps and the holes in the flaps of such loaders.

In Figures 2 and 3, an embodiment of a support member 7 is shown. The support member 7 is a substantially vertical member that includes a coupling system 5 and is adapted and configured to receive the spike system 27. The prong system 27 is typically supported by one or more prong system carriers, for example, an upper prong system carrier 23 and a lower prong system carrier 25. The support member 7 comprises two or more vertical members 15 which are joined to form a support for the upper prong carrier 23 and the lower prong system carrier 25. In the embodiment shown in the figures, the vertical member 58, the upper prong carrier system 23, and the lower prong carrier system 25 define a substantially rectangular member and the width of the multi-point lifting tool 2- The upper prong system carrier 23 comprises a substantially rear-dependent portion 65 which is connected, usually by welding, to both the web rib 57 and the bevelled plate member 67. Carrier · ·

the lower prong system is also connected, usually by welding, to the tapered plate member 67.

The support member 7 may also include a grille 117, which additionally increases the strength of the support member 7, but primarily serves to safely protect objects raised or pricked by the multi-pointed lifting tool 6 so as not to fall on the operator driving the vehicle. The vertical members 15 may be arranged to form a frame 9, substantially rectangular or square, and also include an upper horizontal member 13. The grid 17 comprises horizontal grid members 19 and vertical grid members 21, and occupies an area within the frame 9, and is bounded by the upper horizontal member 11, the two vertical members 15 and the carrier 23 of the upper prong system. The upper prong system carrier 23 is connected to the vertical members 15 and is substantially parallel to the upper horizontal member 13. The lower prong system carrier 25 is connected to the two vertical members 15; it is substantially parallel to the upper horizontal member 13 and the support member 23 of the top prong system.

The upper prong system carrier 23 and the lower prong system carrier 25 are adapted and arranged to support the prong system 27. The upper spike system carrier 23 includes a cross-section extending laterally across the tool 1 and arranged to engage the top of the hook 71 of the spike 29. In the illustrated embodiment, the cross-section 69 is chamfered backward to retract and retain the top of the hook 71 and The tip of the hook 7Ί is substantially concave inwardly and generally extends almost over the width of the tip 29. The bar portion 69 may be provided with grooves for engaging the hook 7Ί in lateral movement along the bar portion 69. The hook 7Ί may include a cam or a lever 79 for crimping the rung 69 and stabilizing the hook 71 on the rung 69.

The lower prong system carrier 25 includes a beam 73 extending laterally across the tool 2 and arranged to engage the bottom of the hook 71 therein. The lower hook 75 is substantially concave upwardly and generally extends almost across the width of the tip 29. The lower hook 75 fits the edge 77 of the beam 73. The beam 73 in the illustrated embodiment has a shovel or S-shaped cross-section to reinforce and retract the lower hook 75. The lower hook 75 and the lower prong system carrier 25 are adapted to engage the prong 29 during lateral and forward movement, as well as for the carrying capacity required during such operation as prying the prong 29. The beam 73 is connected and provided with a support for the prong. connecting the plate member 67.

Various mechanisms are known for supporting spikes or other kind of tool on a vehicle such as a loader, and in one or more embodiments, the multi-point lifting tool 1 may include a support member 7 suitable for each such mechanism. For example, a platform steer loader and the like may include, as standard, one of several support members 7 known per se to connect to these known vehicle systems. For example, one or more prongs 29 may be supported on one or more substantially horizontal rods, one of which may serve as a carrier 23 for the top prong system and another may serve as a carrier 25 for the prong system. Numerous systems for supporting prongs on fork lifts and the like are known in the art, and such systems can be used to support prongs 29 of a multi-point lifting tool and can be adapted for use on a loader. In addition, various hook-type carriage assemblies for forks used on freight transport trucks are known in the art and can be utilized in a multi-point lifting tool 11 to form a spike system support 27.

The prongs 29 are typically L-shaped and include a column member 31 and a vane 33.

The post member 31 is provided with a locking arrangement, such as an upper hook 71 and a lower hook 75, for connecting or attaching the spike 20 to the support member 7. The vane 33 is generally elongate and flat, and has a small cross section, which is convenient for sliding under the object. to be levered or lifted. The vane 33 extends transversely from the nearest end along the lower edge of the support system to the furthest end. Paddle configurations for prongs for lifting devices are known in the art and are also suitable for use with prongs of the present invention. The tip 26 may be any of the tines known for freight transport trucks or the like. Usually the tip is made of solid steel.

The tip 29 may be of any of known shapes and known arrangements in the art for spikes, spikes or other flat, narrow projections, and extends from the face of the lifting tool. However, the tip 29 comprises a paddle that is substantially elongated and flat and has a small cross-section, which is advantageous for sliding under the object to be levered or lifted. By flat tip is meant a tip that has a planar surface substantially parallel to the ground or the bottom of the tool as shown in the figures. The tip 29 may be L-shaped or a flat blade tip may be used. The flat blade tip may be attached to the support member in any manner known per se, such as by welding, by means of a pin or hinge, or the like.

The spike system 27 is provided with multiple spikes 29 arranged spatially to allow the multi-tip lifting tool 1 to retain such larger objects as pieces of cement or asphalt, trees or shrubs, stumps and the like, while allowing smaller objects such as gravel to fall through , clay and the like. The multi-tip lifting tool comprises three or more tines 29, preferably from about three to seven tines 29, preferably five to six tines 29. The tine system 27 is configured to pry and lift larger objects such as pieces or slabs of surfaces or cement and the like, while at the same time allowing smaller objects to fall or be shaken out of the multi-pointed lifting tool 2 The tine system 27 may comprise a plurality of tines 29 substantially parallel or lying in one plane and projecting forward from the support member 7. Adjacent tines usually define a gap 41 between them having a size of about one to eight inches, preferably about two to five inches, in particular substantially three inches.

The spike system has a flat cross-section, which, assuming the lift member is wide, represents a small cross-section so that penetration into the material required for prying and lifting the object is facilitated. This is in contrast to a tool that uses edge-mounted teeth to increase tooth strength, but which is provided with a greater number of teeth than the number of spikes, resulting in an increase in the cross-sectional area that must penetrate underneath the pricked and raised object. This enlargement of the cross-section is disadvantageous since it requires greater force to insert the teeth under the object.

The spike system 27 may also include a stabilizing member 35 that limits movement of the spikes 29 with respect to the support member 7 and keeps the spikes 29 substantially in parallel orientation. Such movement of the prongs 29 relative to the support member 7, such as twisting, lifting, sliding and the like, may cause unacceptable wear of those components of the multi-prong lifting tool such as the individual prongs 23, 25 of the upper prong and lower prong systems, and the like. The stabilizer member 35 prevents or reduces harmful movements of the tips 29. The stabilizer member 35 includes one or more sleeves 37 and one or more spacers 39. The sleeve is slid over the blade 33 of the spike 29. The spacer 39 bridges the gap 44 between the spikes 29 thereby connecting Each of the spacers may be a portion of a single plate that substantially bridges the multi-pointed lifting tool. The sleeve is threaded on the tip so that it is identical in shape to it, but at the same time there is a gap between the tip 29 and the sleeve 37. For example, the sleeve 37 may be made of a square tube with dimensions slightly smaller than the tip. Preferably, the sleeve is not welded or connected in some other way to the tip 29, which is advantageous for absorbing impact and a low degree of flexibility as the tips move. Preferably, each sleeve 37 and / or spacer 39 is connected to the support member 7.

Preferably, the stabilizer member 35 includes one or more inner sleeves 43 and two edge sleeves 45. The edge sleeves 45 may be positioned over the edge tips 47 (tip at the outer edge) of the tip system 27 and extend further (is longer) than the inner sleeve. 43. It is preferred that the edge sleeve 45 provides additional stability to the outer tip and is attached to the side member 51. Typically, the edge sleeve 45 is about twice as long as the inner sleeve 43. The inner sleeve 43 is threaded over the inner tip 49.

The multi-pointed lifting tool comprises one or more side members 5 '. Each side member 5y is arranged upwardly from the edge tip 47 or from the edge sleeve 45 at any edge of the tool and in a forward direction from the support member. The side member 51 is adapted and arranged to prevent objects from falling out of the spike system 27 and to provide a support for the spike system. The side member 51 may be formed by a rigid plate as shown, for example in Figures 1 and 2, or may be formed by a band or rod that defines a side gap between the edge tip 47 or the edge sleeve 45, the support member 7 and the side member 5y.

The multi-pointed lifting tool 1 is usually attached to a vehicle, such as a platform steer loader, which has arms or other device for moving the multi-pointed lifting tool 1 [up and down] and / or for tilting the multi-pointed lifting tool relative to the ground. The orientation of the multi-point lifting tool 1 varies as the vehicle or its arms are handled by the operator driving the vehicle. The blades 33 of the prongs 29 of the prong system 27 are for insertion under the object substantially horizontal or parallel to the ground, with the support member 7 substantially vertical or perpendicular to the ground. For prying the object off the ground, the blades 33 of the prongs 29 may be inclined such that the furthest end 53 is lower than the nearest end 55, and preferably the movement of the vehicle is used to use the prying force. In comparison with existing attachments, the pry tips 29 are advantageous due to the ability of the loader or the like to exert a greater force when tilting than when lifting. The force of the moving vehicle may advantageously exert additional force. For further prying and releasing the object to be lifted, a force may be used to move upwardly the outermost end 53 relative to the nearest end 55. For lifting the object from the ground, for example, the outermost end 53 may be raised relative to the nearest end 55 as shown in Figure 5 bending the object in the gap formed by the 27 prong system, the support member 7 and the side members 5 '. Alternatively, the object to be lifted can rest on substantially horizontal blades 33 of the prongs 29 (see Figure 6) and, if necessary, can be retained in the prong system T1 by one or more side members 5L.

The components may be coupled, mounted or fused in the construction of the multi-point lift tool in any manner suitable for the lift tool components for use on a vehicle such as a platform lift loader. As can be seen herein, connecting or fusing a multi-point lifting tool 2 to another multi-point lifting tool 1 refers to such methods and includes joining the parts to one or more welds, soldered joints, one or more rivets, one or more screws, one or more bolts and the like. The terms used, such as upper, lower, down, up, vertical, horizontal, left, right, and the like, are used in conjunction with the accompanying drawings in a relative sense and solely for the purpose of clarity of description. It will be appreciated by those skilled in the art that the multi-pointed lifting tools 1 assume a variety of orientation in use. The terms used, such as leveraged or lifted, leveraged or lifted, leveraged or lifted, and variations of these terms, refer to the management of one or both of these activities, either in succession (in any order) or separately.

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The present invention is applicable to a number of different multi-point lifting tools and methods of using them. Therefore, the present invention is not limited to the exemplary embodiments described above, but it is clear that it covers all aspects of the invention as is clear from the explanation of the appended claims. Various variations, equivalent to methods and numerous constructions for which the present invention may be applicable, will be apparent to those skilled in the art upon reading the present description. It is believed that the claims cover such modifications and devices.

Claims (12)

Patent claims 1. Multi-tip lifting tool comprising: a support member, a spike system, and one or more side members; a support member adapted and assembled to attach the lifting tool to the vehicle while supporting the spike system; a spike system comprising three or more spikes substantially parallel or arranged in a plane, wherein each spike is provided with a blade, each spike blade extends forward from the support member, adjacent spikes simultaneously defining a gap therebetween; and each side member extends upward from the tip at the edge of the tool, and forward from the support member. Tool according to claim 1, wherein the vehicle is a platform steer loader, rail loader, wheel loader, telescopic lift truck, excavator, tractor The tool of claim 1, further comprising a stabilizing member, the stabilizing member being adapted and assembled to hold the prongs in a substantially parallel orientation and consisting of a plurality of sleeves wherein each sleeve is adapted and assembled to be threaded over the prong, further comprising spacers; wherein each spacer bridges the gap between adjacent spikes and connects the two sleeves. The tool of claim 3, wherein the stabilizing member comprises one or more edge sleeves. The tool of claim 3, wherein the stabilizing member comprises a plurality of sleeves, each sleeve adapted to be threaded over a portion of the spike, the sleeves being simultaneously connected to an assembly in which each of the sleeves is threaded over the spike, and wherein the sleeve assembly is substantially ( parallel) perpendicular to the support member. The tool of claim 3, wherein the stabilizing member comprises a central sleeve and an edge sleeve, the edge sleeve being arranged along the blade in the length of the side member. 949 · · « 9 · 9 9 • 9 • 49 99 99 9 9 9 9 9 9 99 9 9 The tool of claim 1, wherein the support member comprises: the frame, the grid, the mounting member, the upper prong system carrier, and the lower prong system carrier; a frame comprising a rigid, substantially rectangular assembly comprising a first vertical member, a second vertical member, an upper horizontal member, and a lower horizontal member, each vertical member being simultaneously connected to each horizontal member and each horizontal member being connected to each vertical member; a grid comprising one or more horizontal grid members and one or more vertical grid members and occupying an area within the frame and bounded by an upper horizontal member, two vertical members, and a top prong system carrier; the top prong system carrier is coupled to each vertical member, substantially parallel to the top horizontal member and the bottom horizontal member, and is adapted and configured to support one or more prongs; the lower prong system carrier is coupled to each vertical member, is substantially parallel to the upper horizontal member, the lower horizontal member, and the upper prong system carrier member, and is adapted and configured to support one or more prongs; and the mounting member is adapted and configured to connect the tool and the vehicle. The tool of claim 8, wherein the frame has a rigid, substantially square configuration. The tool of claim 1, wherein each tip is approximately L-shaped and includes a pillar member. The tool of claim 9, wherein the tip, which is approximately L-shaped, with the upright upward and with the blade extending in the forward direction is provided with a locking device for attaching the tip to the support member, the locking device being connected to pillar. The tool of claim 1, wherein the tip blade has a substantially flat cross-section. The tool of claim 1, wherein the side member comprises a substantially triangular plate attached to the tip and to the vertical member.