Logistics pallet capable of being detachably combined and used in multifunctional mode for logistics cargo transfer

文档序号:15510 发布日期:2021-09-21 浏览:32次 中文

阅读说明:本技术 物流货物转运用可拆卸组合多功能使用的物流托盘 (Logistics pallet capable of being detachably combined and used in multifunctional mode for logistics cargo transfer ) 是由 李广锋 于 2021-08-04 设计创作,主要内容包括:本发明提供物流货物转运用可拆卸组合多功能使用的物流托盘,涉及物流运输领域。该物流货物转运用可拆卸组合多功能使用的物流托盘,包括托盘本体,所述托盘本体前端左右两侧中部均设置有槽体,所述拨片远离托盘本体中轴线的一侧设置有方孔,所述连接杆后侧设置有第一弹簧,所述托盘本体后端左右两侧均转动连接有六角双头螺栓,所述第一挡块左右两端均固定连接有第一滑槽,所述第二挡块底部左右两端均固定连接有第一滑块,所述第一挡块和第二挡块内侧均滑动连接有压条。通过对托盘进行拆卸组合,使托盘适应不同尺寸的货物,对托盘进行运输时,四个托盘组合为一层,相邻的托盘层层互锁,提高托盘运输便利性,值得大力推广。(The invention provides a logistics tray capable of being detachably combined and used in a multifunctional mode for transferring logistics goods, and relates to the field of logistics transportation. This commodity circulation goods changes application and can dismantle multi-functional commodity circulation tray that uses of combination, including tray body, tray body front end left and right sides middle part all is provided with the cell body, one side that tray body axis was kept away from to the plectrum is provided with the square hole, the connecting rod rear side is provided with first spring, tray body rear end left and right sides all rotates and is connected with hexagonal stud, the first spout of the equal fixedly connected with in both ends about first dog, the first slider of the equal fixedly connected with in both ends about second dog bottom, the inboard equal sliding connection of first dog and second dog has the layering. Through dismantling the combination to the tray, make the tray adapt to not unidimensional goods, when transporting the tray, four tray combinations are the one deck, and adjacent tray interlocks layer by layer, improves tray transportation convenience, is worth wideling popularize.)

1. Logistics goods changes commodity circulation tray that can dismantle multi-functional use of combination of application, including tray body (1), its characterized in that: the tray comprises a tray body (1), wherein the middle parts of the left side and the right side of the front end of the tray body (1) are respectively provided with a groove body (2), the inner side of each groove body (2) is connected with a shifting sheet (3) in a sliding manner, one side, away from the central axis of the tray body (1), of each shifting sheet (3) is provided with a square hole (4), the inner side of each square hole (4) is provided with an anti-skid ring (5), the rear side of each shifting sheet (3) is provided with a placing groove (6), the inner side of each placing groove (6) is provided with a connecting rod (7), the rear side of each connecting rod (7) is provided with a first spring (8), one end, close to the central axis of the tray body (1), of each shifting sheet (3) is fixedly connected with two first straight rods (9), the outer side of each first straight rod (9) is provided with a second spring (10), the left part and the right part of the front side of the tray body (1) are respectively provided with two connecting grooves (11), and four connecting grooves (11) are respectively arranged between the two groove bodies (2), the tray is characterized in that hexagonal stud bolts (12) are rotatably connected to the left side and the right side of the rear end of the tray body (1), a first stop block (13) is arranged at the upper portion of the rear end of the tray body (1), first sliding chutes (14) are fixedly connected to the left side and the right side of the first stop block (13), a second stop block (15) is arranged on the lower portion of the rear end of the tray body (1), the first stop block (13) and the second stop block (15) are both in threaded connection with the two hexagonal stud bolts (12), first sliding blocks (16) are fixedly connected to the left side and the right side of the bottom of the second stop block (15), movable blocks (17) are arranged on the left side and the right side of the rear end of the tray body (1), the two hexagonal stud bolts (12) are arranged between the two movable blocks (17), stop rods (18) are arranged on the left side and the right side of the movable block (17), strip-shaped grooves (19) are arranged on the upper side and the lower side of the front end of the movable block (17), the inner sides of the first stop block (13) and the second stop block (15) are both connected with a pressing strip (20) in a sliding way, the left side and the right side of the rear end of the pressing strip (20) are both fixedly connected with a second straight rod (21), a third spring (22) is arranged on the outer side of the second straight rod (21), a second sliding groove (23) is arranged at one end of the connecting groove (11) close to the central axis of the tray body (1), and the four second sliding grooves (23) are all arranged in the tray body (1), a second sliding block (24) is connected to the inner side of the second sliding chute (23) in a sliding manner, mounting grooves (25) are respectively arranged between the two second sliding chutes (23) on the left side in the tray body (1) and between the two second sliding chutes (23) on the right side in the tray body (1), a fourth spring (26) is fixedly connected between the mounting groove (25) and the second sliding block (24), the front end of the inner side of the mounting groove (25) is fixedly connected with a fixed pulley (27).

2. The logistics pallet of claim 1, wherein the logistics pallet is detachably combined with the multifunctional use device, and comprises: the mounting groove (25) is arranged inside the tray body (1), the fourth spring (26) is arranged inside the second sliding groove (23), the left movable block (17) at the rear end of the tray body (1) is connected with the left fixed pulley (27) inside the tray body (1) and the two left second sliding blocks (24) inside the tray body (1) through the thin rope, and the movable block (17) at the right side of the rear end of the tray body (1) is connected with the fixed pulley (27) on the right side inside the tray body (1) and the two second sliding blocks (24) on the right side inside the tray body (1) through the thin rope.

3. The logistics pallet of claim 1, wherein the logistics pallet is detachably combined with the multifunctional use device, and comprises: the placing groove (6) is communicated with the groove body (2), the first spring (8) is fixedly connected to the rear end of the inner side of the placing groove (6), and grooves corresponding to the second sliding blocks (24) are formed in the left side and the right side of the connecting rod (7).

4. The logistics pallet of claim 1, wherein the logistics pallet is detachably combined with the multifunctional use device, and comprises: two first sliding blocks (16) at the left end and the right end of the second stop block (15) are respectively connected to the inner sides of two first sliding grooves (14) at the left end and the right end of the first stop block (13) in a sliding manner.

5. The logistics pallet of claim 1, wherein the logistics pallet is detachably combined with the multifunctional use device, and comprises: the tray is characterized in that the first straight rod (9) is connected with the tray body (1) in a sliding mode, and the two second straight rods (21) on the rear side of the upper portion of the tray body (1) and the two second straight rods (21) on the rear side of the lower portion of the tray body (1) are connected with the first stop block (13) and the second stop block (15) in a sliding mode respectively.

6. The logistics pallet of claim 1, wherein the logistics pallet is detachably combined with the multifunctional use device, and comprises: the stop lever (18) is fixedly connected to the rear end of the tray body (1).

7. The logistics pallet of claim 1, wherein the logistics pallet is detachably combined with the multifunctional use device, and comprises: the rear end of the second sliding block (24) is provided with a first limiting groove (28), and the rear end of the second sliding groove (23) is far away from one side of the central axis of the tray body (1) and is fixedly connected with a first limiting block (29).

8. The logistics pallet of claim 1, wherein the logistics pallet is detachably combined with the multifunctional use device, and comprises: the inner side top ends of the first stop block (13) and the second stop block (15) are respectively provided with a second limiting groove (30), the inner side of the second limiting groove (30) is connected with a second limiting block (31) in a sliding mode, and the two second limiting blocks (31) inside the first stop block (13) and the two second limiting blocks (31) inside the second stop block (15) are fixedly connected with the two pressing strips (20) respectively.

Technical Field

The invention relates to the field of logistics transportation, in particular to a logistics tray which can be detachably combined and used in a multifunctional mode for transferring logistics goods.

Background

The tray is a kind of intermedium that can improve the goods flexibility, in the transportation of goods, adopts the tray to bear the weight of the goods, transports the goods through fork truck cooperation commodity circulation tray, can effectively improve the transfer efficiency and can use manpower sparingly.

The appearance of commodity circulation goods has certain variety, and current commodity circulation tray is not enough to the suitability of goods shape to some extent, and when transporting commodity circulation tray itself in addition, the tray produces sideslip easily, and commodity circulation tray transportation convenience is not enough.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the logistics tray which is detachably combined and used in a multifunctional mode for transferring logistics goods, and solves the problems that the logistics tray is not enough in applicability and the logistics tray is not enough in transportation convenience.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the logistics pallet capable of being detachably combined and used in a multifunctional mode for logistics cargo transferring comprises a pallet body, wherein groove bodies are arranged in the middle of the left side and the right side of the front end of the pallet body, a shifting sheet is connected to the inner side of each groove body in a sliding mode, a square hole is formed in one side, away from the central axis of the pallet body, of each shifting sheet, an anti-slip ring is arranged on the inner side of each square hole, a placing groove is formed in the rear side of each shifting sheet, a connecting rod is arranged on the inner side of each placing groove, a first spring is arranged on the rear side of each connecting rod, two first straight rods are fixedly connected to one end, close to the central axis of the pallet body, of each shifting sheet, a second spring is arranged on the outer side of each first straight rod, two connecting grooves are formed in the left portion and the right portion of the front side of the pallet body, four connecting grooves are formed between the two groove bodies, hexagonal stud bolts are rotatably connected to the left side and the right side of the rear end of the pallet body, a first stop block is arranged on the upper portion of the rear end of the pallet body, the tray comprises a tray body, a first baffle block, a second baffle block, a first sliding groove, a second sliding groove, a first sliding block, a second straight bar, a third spring, a third sliding groove and a fourth sliding groove, the tray comprises a tray body, a first sliding groove and a second sliding groove, wherein the first sliding groove is arranged on the inner side of the tray body, the second sliding block is arranged on the inner side of the tray body, and the second sliding grooves are arranged on the inner side of the tray body.

Preferably, the mounting groove is formed in the tray body, the fourth spring is arranged in the second sliding groove, the left movable block at the rear end of the tray body is connected with the left fixed pulley on the inner side of the tray body and the two left second sliding blocks on the inner side of the tray body through the strings, and the movable block on the right side of the rear end of the tray body is connected with the fixed pulley on the inner right side of the tray body and the two second sliding blocks on the inner right side of the tray body through the strings.

Preferably, the placing groove is communicated with the groove body, the first spring is fixedly connected to the rear end of the inner side of the placing groove, and grooves corresponding to the second sliding blocks are formed in the left side and the right side of the connecting rod.

Preferably, the two first sliding blocks at the left end and the right end of the second stop block are respectively connected to the inner sides of the two first sliding grooves at the left end and the right end of the first stop block in a sliding manner.

Preferably, the first straight rod is connected with the tray body in a sliding mode, and the two second straight rods on the rear side of the upper portion of the tray body and the two second straight rods on the rear side of the lower portion of the tray body are connected with the first stop block and the second stop block in a sliding mode respectively.

Preferably, the stop lever is fixedly connected to the rear end of the tray body.

Preferably, the rear end of the second sliding block is provided with a first limiting groove, and the rear end of the second sliding groove is far away from the first limiting block fixedly connected to one side of the central axis of the tray body.

Preferably, the top ends of the inner sides of the first stop block and the second stop block are respectively provided with a second limiting groove, the inner sides of the second limiting grooves are slidably connected with second limiting blocks, and the two second limiting blocks inside the first stop block and the two second limiting blocks inside the second stop block are respectively fixedly connected with the two pressing strips.

The working principle is as follows: the plectrum has a limiting function on the connecting rods, the plectrum is stirred to enable the square holes of the plectrum to be communicated with the placing groove, the first spring pops the connecting rods out of the placing groove, the anti-skidding rings have a buffering function on the connecting rods to prevent the connecting rods from popping out quickly, two connecting rods are arranged in each tray, the connecting rods of the two trays are taken out, the left parts and the right parts of the four connecting rods are respectively inserted into the connecting grooves of the two trays, when the two trays are attached, the fourth spring pushes the second sliding block into the groove of the connecting rod along the second sliding groove, the second sliding block limits the connecting rods, the two trays can be connected into a whole to form a long tray which can bear long goods, the first stop block in the long tray can move upwards and the second stop block can move downwards by adjusting the hexagonal stud bolts of the two long trays, and meanwhile, the limitation on the pressing strips by the rear end of the tray body is relieved, the press strip is popped by a third spring, the two long trays are attached to the side surfaces and are stacked into one layer of tray, each layer of tray is mutually vertically stacked, a second limiting block is matched with a second limiting groove to limit the ejection degree of the press strip, the trays can be stacked layer by layer, the press strip of each layer of tray is matched with a first stop block and a second stop block to limit adjacent trays, the stacked trays are prevented from sideslipping, the trays and the trays are interlocked layer by layer, the stacked trays are separated layer by layer, a hexagon stud is adjusted to reset the first stop block and the second stop block, goods can be placed on the trays for logistics transportation, if the goods are longer, the long tray formed by combining the two trays is used for transportation, otherwise, the long tray is disassembled into an independent tray, a movable block is pulled backwards, the movable block pulls a second slide block to a mounting groove through a thin rope and a fixed pulley to relieve the limit of the second slide block on the connecting rod, the movable block is rotated, the bar-shaped groove of the movable block is attached to the stop lever, the movable block can continuously provide tension for the second sliding block through the string, the two trays are separated, the movable block is reset, the connecting rod is drawn out, the shifting piece is pulled out, the square hole and the placing groove of the shifting piece are communicated, the four connecting rods are respectively filled into the placing grooves of the two trays, the shifting piece is reset under the action of the second spring, and the single tray is used for bearing and transporting goods.

(III) advantageous effects

The invention provides a logistics tray which can be detachably combined and used in a multifunctional way for transferring logistics goods. The method has the following beneficial effects:

the invention ejects the connecting rods from the placing grooves by the first spring by shifting the shifting sheet, two connecting rods are arranged in each tray, the connecting rods of the two trays are taken out, the left parts and the right parts of the four connecting rods are respectively inserted into the connecting grooves of the two trays, when the two trays are attached, the fourth spring is matched with the second sliding groove to push the second sliding block into the groove of the connecting rod to limit the connecting rods, the two trays can be connected into a whole to form a long tray which can bear longer goods, the first stop block in the long tray is moved upwards and the second stop block is moved downwards by adjusting the hexagonal stud bolts of the two long trays, the pressing strip is ejected by the third spring, the second stop block is matched with the second limiting groove to limit the ejection degree of the pressing strip, the side surfaces of the two long trays are attached to form a layer of tray, and each layer of trays are vertically stacked, the layering cooperation first dog and the second dog of every layer of tray carry on spacingly to adjacent tray, avoid the tray of piling up to sideslip, and tray are interlocked layer upon layer, have improved the transportation convenience of tray itself, are worth wideling popularize.

Drawings

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a front view structural diagram of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic view of the structure of the placement groove of the present invention;

FIG. 5 is an enlarged view of FIG. 4 at B;

FIG. 6 is a perspective view of the back of the present invention;

FIG. 7 is a rear view structural diagram of the present invention;

FIG. 8 is a left side view of the present invention;

FIG. 9 is an enlarged view at C of FIG. 8;

FIG. 10 is an enlarged view of FIG. 8 at D;

FIG. 11 is a schematic view of the present invention.

Wherein, 1, the tray body; 2. a trough body; 3. a shifting sheet; 4. a square hole; 5. an anti-slip ring; 6. a placement groove; 7. a connecting rod; 8. a first spring; 9. a first straight rod; 10. a second spring; 11. connecting grooves; 12. a hexagonal stud; 13. a first stopper; 14. a first chute; 15. a second stopper; 16. a first slider; 17. a movable block; 18. a stop lever; 19. a strip-shaped groove; 20. layering; 21. a second straight rod; 22. a third spring; 23. a second chute; 24. a second slider; 25. mounting grooves; 26. a fourth spring; 27. a fixed pulley; 28. a first limit groove; 29. a first stopper; 30. a second limit groove; 31. and a second limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1-11, the embodiment of the invention provides a logistics pallet which is detachably combined and used in a logistics goods transfer way, and comprises a pallet body 1, wherein the middle parts of the left side and the right side of the front end of the pallet body 1 are respectively provided with a groove body 2, the inner side of the groove body 2 is connected with a shifting sheet 3 in a sliding way, one side of the shifting sheet 3 away from the central axis of the pallet body 1 is provided with a square hole 4, the inner side of the square hole 4 is provided with an anti-skid ring 5, the rear side of the shifting sheet 3 is provided with a placing groove 6, the inner side of the placing groove 6 is provided with a connecting rod 7, the rear side of the connecting rod 7 is provided with a first spring 8, one end of the shifting sheet 3 close to the central axis of the pallet body 1 is fixedly connected with two first straight rods 9, the outer side of each first straight rod 9 is provided with a second spring 10, the left part and the right part of the front side of the pallet body 1 are respectively provided with two connecting grooves 11, four connecting grooves 11 are respectively arranged between the two groove bodies 2, the left side and the right side of the rear end of the pallet body 1 are respectively connected with a double-headed bolt 12 in a rotating way, a first stop block 13 is arranged at the upper part of the rear end of the tray body 1, first chutes 14 are fixedly connected at the left and right ends of the first stop block 13, a second stop block 15 is arranged at the lower part of the rear end of the tray body 1, the first stop block 13 and the second stop block 15 are both in threaded connection with two hexagonal stud bolts 12, first sliders 16 are fixedly connected at the left and right ends of the bottom of the second stop block 15, movable blocks 17 are arranged at the left and right sides of the rear end of the tray body 1, two hexagonal stud bolts 12 are both arranged between the two movable blocks 17, stop rods 18 are arranged at the left and right sides of the movable blocks 17, strip-shaped grooves 19 are arranged at the upper and lower sides of the front end of each movable block 17, pressing strips 20 are respectively and slidably connected at the inner sides of the first stop block 13 and the second stop block 15, second straight rods 21 are fixedly connected at the left and right sides of the rear end of each pressing strip 20, third springs 22 are arranged at the outer sides of the second straight rods 21, second chutes 23 are arranged at one end of the connecting groove 11 close to the central axis of the tray body 1, and four second chutes 23 are arranged inside the tray body 1, a second sliding block 24 is connected to the inner side of the second sliding groove 23 in a sliding manner, mounting grooves 25 are respectively arranged between the two second sliding grooves 23 on the left side in the tray body 1 and between the two second sliding grooves 23 on the right side in the tray body 1, a fourth spring 26 is fixedly connected between the mounting grooves 25 and the second sliding blocks 24, a fixed pulley 27 is fixedly connected to the front end of the inner side of each mounting groove 25, the poking piece 3 has a limiting effect on the connecting rod 7, the poking piece 3 is poked to enable the square hole 4 of the poking piece 3 to be communicated with the placing groove 6, the connecting rod 7 is popped out of the placing groove 6 through the first spring 8, the anti-skidding ring 5 has a buffering effect on the connecting rod 7 to prevent the connecting rod 7 from being popped out rapidly, two connecting rods 7 are respectively arranged in each tray, the connecting rods 7 of the two trays are taken out, the left parts and the right parts of the four connecting rods 7 are respectively inserted into the connecting grooves 11 of the two trays, when the two trays are attached, the second sliding blocks 24 are pushed into the grooves of the connecting rod 7 through the second sliding grooves 23 by the fourth springs 26, the second slide block 24 limits the connecting rod 7, and can connect the two trays into a whole to form a long tray, can bear longer goods, the first stop block 13 in the long tray moves upwards, the second stop block 15 in the long tray moves downwards by adjusting the hexagon stud bolts 12 of the two long trays, meanwhile, the limit of the rear end of the tray body 1 on the pressing strip 20 is released, the pressing strip 20 is ejected by the third spring 22, the side surfaces of the two long trays are jointed, the trays are arranged in a layer, so that the trays in each layer are mutually perpendicular and stacked, the second limiting blocks 31 are matched with the second limiting grooves 30 to limit the ejection degree of the pressing strips 20, the trays can be stacked layer by layer, the pressing strips 20 of the trays in each layer are matched with the first stop blocks 13 and the second stop blocks 15 to limit the adjacent trays, the stacked trays are prevented from sideslipping, the trays and the trays are interlocked layer by layer, and the transportation convenience of the trays is improved.

The mounting groove 25 is arranged inside the tray body 1, the fourth spring 26 is arranged inside the second sliding groove 23, the movable block 17 on the left side of the rear end of the tray body 1 is connected with the fixed pulley 27 on the left side of the inside of the tray body 1 and the two second sliding blocks 24 on the left side of the inside of the tray body 1 through a string, the movable block 17 on the right side of the rear end of the tray body 1 is connected with the fixed pulley 27 on the right side of the inside of the tray body 1 and the two second sliding blocks 24 on the right side of the inside of the tray body 1 through a string, the stacked trays are separated layer by layer, the hexagonal stud 12 is adjusted to reset the first stop 13 and the second stop 15, the goods can be placed on the trays for logistics transportation, if the goods are longer, the long tray formed by combining the two trays is used for transportation, otherwise, the long tray is disassembled into an independent tray, the movable block 17 is pulled backwards, the movable block 17 pulls the second sliding blocks 24 to the mounting groove 25 through a string and the fixed pulley 27, remove the restriction of second slider 24 to connecting rod 7, separate two trays, and reset movable block 17, take connecting rod 7 out, dial out plectrum 3, make the square hole 4 and the standing groove 6 intercommunication of plectrum 3, in filling the standing groove 6 of two trays respectively with four connecting rods 7, plectrum 3 resets under the effect of second spring 10, use single tray to bear the weight of the transportation to the goods, through dismantling the combination to the tray, use the size of goods, improve the functionality of tray.

Standing groove 6 and cell body 2 intercommunication, first spring 8 fixed connection are in 6 inboard rear ends of standing groove, and the connecting rod 7 left and right sides all is provided with the recess that corresponds with second slider 24.

Two first sliders 16 at the left end and the right end of the second stopper 15 are respectively slidably connected to the inner sides of two first sliding grooves 14 at the left end and the right end of the first stopper 13, the upper portion of the hexagonal stud bolt and the lower portion of the hexagonal stud bolt are opposite in thread turning direction, when the hexagonal stud bolt 12 is rotated, the first stopper 13 and the second stopper 15 move reversely, the first sliding grooves 14 limit the first sliders 16, and the first stopper 13 and the second stopper 15 are prevented from being separated from the hexagonal stud bolt 12.

The first straight rod 9 is connected with the tray body 1 in a sliding mode, the two second straight rods 21 on the rear side of the upper portion of the tray body 1 and the two second straight rods 21 on the rear side of the lower portion of the tray body 1 are connected with the first stop block 13 and the second stop block 15 in a sliding mode respectively, the first straight rod 9 plays a role in guiding the second spring 10, and the second straight rod 21 plays a role in guiding the third spring 22 and the pressing strip 20.

Stop lever 18 fixed connection is in the rear end of tray body 1, and rotatory movable block 17, with the laminating of movable block 17's bar groove 19 and stop lever 18, make movable block 17 can last provide the pulling force for second slider 24 through the string, the convenience is decomposed the microscler tray that the combination formed.

The rear end of the second sliding block 24 is provided with a first limiting groove 28, the rear end of the second sliding groove 23 is far away from a first limiting block 29 fixedly connected to one side of the central axis of the tray body 1, the first limiting block 29 limits the second sliding block 24 through the first limiting groove 28, the second sliding block 24 is prevented from being excessively ejected out before the connecting groove 11 is inserted into the connecting rod 7, and the second sliding block 24 is prevented from blocking the insertion of the connecting rod 7.

The inboard top of first dog 13 and second dog 15 all is provided with second spacing groove 30, the inboard sliding connection in second spacing groove 30 has second stopper 31, two inside second stoppers 31 of first dog 13 and two inside second stoppers 31 of second dog 15 respectively with two layering 20 fixed connection, the tray of upper strata can't crowd the layering 20 of lower floor's tray into the first dog 13 of lower floor's tray when preventing to put things in good order, prevent simultaneously that the layering 20 of upper tray can't be crowded into in the second stopper 15 of upper tray by lower floor's tray.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

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