EP0325889B1 - Spreader device - Google Patents
Spreader device Download PDFInfo
- Publication number
- EP0325889B1 EP0325889B1 EP19880730285 EP88730285A EP0325889B1 EP 0325889 B1 EP0325889 B1 EP 0325889B1 EP 19880730285 EP19880730285 EP 19880730285 EP 88730285 A EP88730285 A EP 88730285A EP 0325889 B1 EP0325889 B1 EP 0325889B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- twist lock
- booms
- lock pin
- extension
- spreader
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/18—Load gripping or retaining means
- B66F9/186—Container lifting frames
Definitions
- the present invention relates to a spreader device for forklifts, cranes, straddle carriers and the like.
- a spreader device having a main frame two pairs of booms inserted into said frame from the left and right ends of the spreader frame in such a way that said booms can extend and contract in the left and right directions; a right hollow connecting member and a left hollow connecting member for connecting the outer ends of each pair of said booms; twist lock pin boxes connected to the hollow connecting means; twist lock pins in said twist lock pin boxes and cylinders for the extension and contraction of said booms.
- each boom is extended or contracted so that the distance between the right side group of the connecting member and twist lock pin box and the left side group of these is adjusted to the length of each container.
- the GB-A-1 328 101 shows adjustment frames comprising a transverse element which for example is recured to the end portions of the booms. This transverse element is of a complicated structure.
- the transverse element can be telescopic or constructed of I-beams reinforced by plates and connected to the booms by welding and strengthening plate.
- a spreader device which can also fit containers with different widths, by using a swivel arm which is rotatable about his horizontal axis by a drive shaft.
- the swivel arm according to this document is also provided with two rotatable trunnions to fix the containers.
- the spreader devices according to prior art which are able to fit containers with different widths are of a complicated structure.
- the present invention provides a spreader device for forklifts and the like carrying a container, being characterized in that said cylinders 8 for the extension and contraction of said booms 2 are disposed between the right and left connecting members 2′ and the spreader frame 1 and that two pairs of adjustment frames 3 are inserted into the right and left connecting members 2′ in such a way that said adjustment frames 3 can move in the front and back directions and that means 9 for the extension and contraction of said adjustment frames 3 are provided and that said means for the extension and contraction of said adjustment frames 3 are cylinders 9 disposed between the twist lock pin boxes 4 and the connecting members 2′ for the extension and contraction of the twist lock pin boxes.
- the spreader device of the present invention is constructed as described above.
- the connecting member cylinders move in the direction of extension or contraction so that the booms, connecting members and twist lock pin boxes are adjusted in the right and left directions (as indicated by the bi-directional arrow X in FIG.1) to a container to be carried.
- the pin box cylinders are activated to move the adjustment frames and twist lock pin boxes in the front and back directions (as indicated by the bi-directional arrow Y in FIG.1) about the connecting members.
- (1) indicates a spreader frame
- (2′) hollow connecting members connecting the outer ends of the booms (3) two pairs of adjustment frames inserted into the connecting members (2′) in such a way that the adjustment frames can move in the front and back directions (directions indicated by the arrow Y in FIG.1), and (4) twist lock pin boxes fixed to the outer end of each of the adjustment frames (3).
- twist lock pins located in the twist lock pin boxes, and (5) the central position of each of the twist lock pins.
- the connecting member cylinders (8),(8) for extending and contracting the connecting members are activated so as to adjust the connecting members (2′), the adjustment frames (3) and the twist lock pin boxes (4) in the left and right directions (as indicated by the arrow X).
- (A) indicates the length of the spreader when the pin boxes (4),(4) are extended to the right and left
- (B) indicates the extension on one side.
- the spreader can be used for containers of various lengths.
- the pin box cylinders (9),(9) for the extension and contraction of the twist lock pin boxes are activated to adjust the front and rear adjustment frames (3) and the twist lock pin boxes (4) in the front and back directions (indicated by the arrow Y).
- (C) notes the distance in the front-back direction between the pin boxes as they are in the extended positions
- (D) shows the extension on one side.
- the spreader device of the present invention can be adjusted to different types of containers with different lengths by activating the means for contracting and extending the booms (these means are shown as the connecting cylinders in the above embodiment by way of example) to move the connecting members and the twist lock pin boxes in the right and left directions (as indicated by the arrow X). Also, for containers with quite different widths, the means for contracting and extending the adjustment booms (these means are shown as the pin box cylinders in the above embodiment by way of example) are activated to adjust the positions of the twist lock pin boxes relatively to the connecting members in the front and back directions (as indicated by the arrow Y). In this way, the spreader device of the present invention can be used not only for containers of different lengths but also for ones with much different widths.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Load-Engaging Elements For Cranes (AREA)
Description
- The present invention relates to a spreader device for forklifts, cranes, straddle carriers and the like. According to GB-A-2 031 843 a spreader device is known having a main frame two pairs of booms inserted into said frame from the left and right ends of the spreader frame in such a way that said booms can extend and contract in the left and right directions; a right hollow connecting member and a left hollow connecting member for connecting the outer ends of each pair of said booms; twist lock pin boxes connected to the hollow connecting means; twist lock pins in said twist lock pin boxes and cylinders for the extension and contraction of said booms.
- To cope with containers with different lengths, each boom is extended or contracted so that the distance between the right side group of the connecting member and twist lock pin box and the left side group of these is adjusted to the length of each container.
- In the spreader according to GB-A-2 031 843, the distance between the pair of twist lock pin boxes on each side cannot be adjusted, it has been a problem that this spreader cannot be used if the width of a container varies one from another very much.
- Therefore to fit containers with different widths the use of adjustmend frames is disclosed in the GB-A-1 328 101 and in the DE-A-2 053 507. The GB-A-1 328 101 shows adjustment frames comprising a transverse element which for example is recured to the end portions of the booms. This transverse element is of a complicated structure.
- According to this document the transverse element can be telescopic or constructed of I-beams reinforced by plates and connected to the booms by welding and strengthening plate.
- According to the DE-A-2 053 507 a spreader device is known which can also fit containers with different widths, by using a swivel arm which is rotatable about his horizontal axis by a drive shaft. The swivel arm according to this document is also provided with two rotatable trunnions to fix the containers.
- The spreader devices according to prior art which are able to fit containers with different widths are of a complicated structure.
- It is therefore an object of the present invention to provide an improved spreader device that is adjustable to containers with very different widths as well as with different lengths. That is, the present invention provides a spreader device for forklifts and the like carrying a container, being characterized in that said
cylinders 8 for the extension and contraction of saidbooms 2 are disposed between the right and left connectingmembers 2′ and the spreader frame 1 and that two pairs ofadjustment frames 3 are inserted into the right and left connectingmembers 2′ in such a way that saidadjustment frames 3 can move in the front and back directions and that means 9 for the extension and contraction of saidadjustment frames 3 are provided and that said means for the extension and contraction of saidadjustment frames 3 arecylinders 9 disposed between the twistlock pin boxes 4 and the connectingmembers 2′ for the extension and contraction of the twist lock pin boxes. - The spreader device of the present invention is constructed as described above. To carry various containers with very different lengths, the connecting member cylinders move in the direction of extension or contraction so that the booms, connecting members and twist lock pin boxes are adjusted in the right and left directions (as indicated by the bi-directional arrow X in FIG.1) to a container to be carried. If the width of containers varies one from another by much, the pin box cylinders are activated to move the adjustment frames and twist lock pin boxes in the front and back directions (as indicated by the bi-directional arrow Y in FIG.1) about the connecting members.
-
- FIG.1 shows a plan of an embodiment of the spreader device of the present invention with the pin box cylinders on the right side being omitted;
- FIG.2 is a front view of the embodiment of FIG.1 seen in the direction of an arrow II in FIG.1;
- FIG.3 is a vertical sectional view of the embodiment of FIG.1 along the III-III line and seen in the direction of the arrows; and
- The spreader device of the present invention will be explained with reference to an embodiment shown in FIGS.1 to 3. In the figures, (1) indicates a spreader frame, (2) pairs of booms inserted into the right and left sides of the spreader frame (1) in such a way that the booms can be extended or contracted in the right and left directions (directions indicated by the arrow X in FIG.1), (2′) hollow connecting members connecting the outer ends of the booms, (3) two pairs of adjustment frames inserted into the connecting members (2′) in such a way that the adjustment frames can move in the front and back directions (directions indicated by the arrow Y in FIG.1), and (4) twist lock pin boxes fixed to the outer end of each of the adjustment frames (3).
- (6) denotes twist lock pins located in the twist lock pin boxes, and (5) the central position of each of the twist lock pins.
- (7) indicates friction metal pieces disposed between the inner surface of the spreader frame (1) and the outer surface of the boom (2), (8) connecting member cylinders disposed between the right and left connecting members (2′),(2′) and the spreader frame (1) for extending and contracting the connecting members (2′), and (9) pin box cylinders disposed between a pair of the twist lock pin boxes (4),(4) and the connecting member (2′). In FIG.1 the pin box cylinders placed on the right connecting member are omitted from the figure for clarity.
- The operation of this spreader device will now be explained in detail.
- To carry containers of different lengths (different sizes in the right left direction), the connecting member cylinders (8),(8) for extending and contracting the connecting members are activated so as to adjust the connecting members (2′), the adjustment frames (3) and the twist lock pin boxes (4) in the left and right directions (as indicated by the arrow X). In FIG.1, (A) indicates the length of the spreader when the pin boxes (4),(4) are extended to the right and left, and (B) indicates the extension on one side. Thus the spreader can be used for containers of various lengths.
- To carry containers of very different widths (different sizes in the front-back direction), the pin box cylinders (9),(9) for the extension and contraction of the twist lock pin boxes are activated to adjust the front and rear adjustment frames (3) and the twist lock pin boxes (4) in the front and back directions (indicated by the arrow Y). In FIGS.1 and 2, (C) notes the distance in the front-back direction between the pin boxes as they are in the extended positions, and (D) shows the extension on one side. Thus the spreader device can be used for containers of very different witths.
- The operation of the cylinders explained above may be done using conventional methods such as a remote control method with the use of fluid pressure.
- The spreader device of the present invention can be adjusted to different types of containers with different lengths by activating the means for contracting and extending the booms (these means are shown as the connecting cylinders in the above embodiment by way of example) to move the connecting members and the twist lock pin boxes in the right and left directions (as indicated by the arrow X). Also, for containers with quite different widths, the means for contracting and extending the adjustment booms (these means are shown as the pin box cylinders in the above embodiment by way of example) are activated to adjust the positions of the twist lock pin boxes relatively to the connecting members in the front and back directions (as indicated by the arrow Y). In this way, the spreader device of the present invention can be used not only for containers of different lengths but also for ones with much different widths.
Claims (1)
A spreader frame (1) two pairs of booms (2) inserted into said spreader frame (1) from the left and right ends of the spreader frame in such a way that said booms (2) can extend and contract in the left and right directions; a right hollow connecting member (2′) and a left hollow connecting member (2′) for connecting the outer ends of each pair of said booms (2); twist lock pin boxes (4) connected to the hollow connecting means (2′); twist lock pins (6) in said twist lock pin boxes (4); cylinders (8) for the extension and contraction of said booms,
characterized in that said cylinders (8) for the extension and contraction of said booms (2) are disposed between the right and left connecting members (2′), and the spreader frame (1) and that two pairs of adjustment frames (3) are inserted into the right and left connecting members (2′) in such a way that said adjustment frames (3) can move in the front and back directions and that means (9) for the extension and contraction of said adjustment frames (3) are provided and that said means for the extension and contraction of said adjustment frames (3) are cylinders (9) disposed between the twist lock pin boxes (4) and the connecting members (2′) for the extension and contraction of the twist lock pin boxes (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58/88 | 1988-01-05 | ||
JP5888U JPH01106484U (en) | 1988-01-05 | 1988-01-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0325889A1 EP0325889A1 (en) | 1989-08-02 |
EP0325889B1 true EP0325889B1 (en) | 1992-06-17 |
Family
ID=11463612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19880730285 Expired EP0325889B1 (en) | 1988-01-05 | 1988-12-29 | Spreader device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0325889B1 (en) |
JP (1) | JPH01106484U (en) |
DE (1) | DE3872211T2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0636068Y2 (en) * | 1988-06-29 | 1994-09-21 | 小松フォークリフト株式会社 | Container spreader device |
US5147171A (en) * | 1991-07-25 | 1992-09-15 | Caterpillar Industrial Inc. | Side shift carriage for a lift mast |
SE527325C2 (en) * | 2004-07-05 | 2006-02-14 | Elmhults Konstruktions Ab | The container lift |
NL2005296C2 (en) * | 2010-09-01 | 2012-03-05 | Fred Korrel | CONTAINER CLAMP. |
CN107720532A (en) * | 2017-11-17 | 2018-02-23 | 湖州金胜豪塑料制品有限公司 | A kind of building materials tower crane transport box |
CN109969953B (en) * | 2019-04-29 | 2023-09-01 | 西南交通大学 | Pressure assembly of automatic mechanical locking box body and lifting device of box body |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1328101A (en) * | 1969-09-02 | 1973-08-30 | Lancer Boss Ltd | Lifting apparatus |
DE2053507C2 (en) * | 1970-10-31 | 1983-09-15 | Hilgers Ag, 5456 Rheinbrohl | Crane suspension for loading various standardized containers |
JPS5217313A (en) * | 1975-07-31 | 1977-02-09 | Kawasaki Steel Corp | Heat treated high tensile steel having tensile strength above 60 kg/mm # not requiring preheating at the welding |
GB2031841A (en) * | 1978-10-23 | 1980-04-30 | Lancer Boss Ltd | Load lifting frames or use with load lifting vehicles and equipment |
-
1988
- 1988-01-05 JP JP5888U patent/JPH01106484U/ja active Pending
- 1988-12-29 DE DE19883872211 patent/DE3872211T2/en not_active Expired - Fee Related
- 1988-12-29 EP EP19880730285 patent/EP0325889B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3872211T2 (en) | 1993-05-06 |
EP0325889A1 (en) | 1989-08-02 |
DE3872211D1 (en) | 1992-07-23 |
JPH01106484U (en) | 1989-07-18 |
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