US20080210687A1 - Demountable Stub Post - Google Patents
Demountable Stub Post Download PDFInfo
- Publication number
- US20080210687A1 US20080210687A1 US10/572,182 US57218204A US2008210687A1 US 20080210687 A1 US20080210687 A1 US 20080210687A1 US 57218204 A US57218204 A US 57218204A US 2008210687 A1 US2008210687 A1 US 2008210687A1
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- US
- United States
- Prior art keywords
- post
- extension
- stub
- container
- screw
- 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.)
- Abandoned
Links
- 239000004606 Fillers/Extenders Substances 0.000 claims description 40
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000005266 casting Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/0006—Coupling devices between containers, e.g. ISO-containers
- B65D90/0013—Twist lock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/005—Large containers of variable capacity, e.g. with movable or adjustable walls or wall parts, modular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/02—Large containers rigid
- B65D88/12—Large containers rigid specially adapted for transport
- B65D88/122—Large containers rigid specially adapted for transport with access from above
- B65D88/123—Large containers rigid specially adapted for transport with access from above open top
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/02—Large containers rigid
- B65D88/12—Large containers rigid specially adapted for transport
- B65D88/129—Transporter frames for containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/52—Large containers collapsible, i.e. with walls hinged together or detachably connected
- B65D88/522—Large containers collapsible, i.e. with walls hinged together or detachably connected all side walls hingedly connected to each other or to another component of the container
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/02—Releasable fastening devices locking by rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
Definitions
- a special crane suspension, or spreader, with elongated arms is used to reach down past projecting cargo for container capture and lift.
- the extension along with a main (base) post, is located in dedicated, specially elongated, base recesses—where the base configuration so allows without undermining the structure.
- extensions are demountable and re-deployable, as independent (corner) stub posts upon a platform base, for low profile loads such as pipes.
- extensions are provided with releasable base couplings, compatible with standard container capture, handling and support fittings.
- a demountable post extension (or extender) has a clamp action mounting at one (base) end.
- a wedge driven (mechanically advantaged) clamp action can be used.
- a transverse movable wedge ( 21 ) is operable for longitudinal movement of a depending mounting jaw ( 22 ).
- the wedge movement is desirably screw-driven.
- the mounting is comprises a rotatable jaw, locatable in a base mounting plate (profiled) aperture, with mechanically advantaged clamp screw drive.
- Such a clamp drive could feature a screw mounted wedge, to interact with a slotted carrier for a depending mounting jaw.
- a depending tongue is initially inserted into an aligned base mounting slot of a base post or flatrack base, then re-aligned—say, by rotation—relative to the slot, to inhibit tongue withdrawal, preparatory to clamp action.
- clamp drive screw rotation retracts the tongue until it contacts the underside of a plate bounding a base mounting slot.
- a post extension may feature a profiled lip or depending flange, to inhibit post rotation upon screw tightening.
- An inset depending abutment, locatable in a lateral extension of a tongue reception slot, may also be employed to inhibit post rotation upon tightening.
- a post extension comprises an elongate tubular body, a carrier or traveller movable longitudinally of the body, with a depending locating and locking tongue, protruding from a base plate, a transverse positional adjustment screw, for engagement with a wedge located in a longitudinal slot in a carrier, so that screw rotation draws the wedge along the screw length and moves the carrier and in turn tongue longitudinally of the post.
- Post extensions could be configured for co-operative mounting upon other post extensions.
- a restraint tie such as a clamp screw retention element, may be employed to inhibit inadvertent demount.
- a container such as a collapsible flatrack, may be fitted with a demountable post extension.
- a container may incorporate bespoke profile recesses in a platform deck, to accommodate demounted post extensions.
- demountable stub posts, or post extenders for use with collapsible flatrack containers, platform decks or collapse foldable support posts and/or walls, by way of example only, with reference to the accompanying diagrammatic and schematic drawings, in which:
- FIGS. 1A through 1E show flatrack containers with four individual corner (handling, lifting and stacking) support posts fitted with respective demountable post extensions.
- These support posts may be of fixed length, or themselves telescopically extendable (not shown).
- FIG. 1A shows a perspective view of a flatrack container with one corner support post being fitted with a demountable (stub) post extension.
- the extension is somewhat shorter than the base—hence the qualifier ‘stub’ post.
- FIG. 1B shows a perspective view of the flatrack container of FIG. 1A fitted with demountable post extensions on each existing corner (base) post.
- FIG. 1C shows a side elevation view of the flatrack container of FIG. 1A without demountable post extensions, loaded with freight taller than the existing post height.
- FIG. 1D shows a side elevation view of the flatrack container of FIG. 1C fitted with demountable post extensions—affording additional load depth or height capacity and overhead clearance.
- FIG. 1E shows a side elevation view of three of the flatrack containers of FIG. 1D stacked upon one another.
- FIGS. 2A through 2E show flatrack container bases being fitted with demountable (stub) post extensions.
- FIG. 2A shows a perspective view of a flatrack container base with a demountable (stub) post extension being fitted at a corner.
- FIG. 2B shows a perspective view of the flatrack container base of FIG. 2A fitted with demountable (stub) post extensions on each corner.
- FIG. 2C shows a side elevation view of the flatrack container base of FIG. 2A without demountable post extensions, loaded with freight taller than the corner (capture, handling and support) fitments.
- FIG. 2D shows a side elevation view of the flatrack container base of FIG. 2C fitted with demountable post extensions—giving additional load depth capacity and marginal overload clearance.
- FIG. 2E shows a side elevation view of five of the flatrack container bases of FIG. 1D stacked upon one another.
- FIGS. 3A through 3C show side elevation views of a demountable (stub) post extension being fitted upon a support post, such as of FIG. 1A .
- FIG. 3A shows a demountable (stub) post extension being offered up to a support post of FIG. 1 A—with depending locating and locking tongue ready for insertion into a post top (box) capture, handling and support fitting.
- FIG. 3B shows the demountable post extension of FIG. 3A being rotated with respect to the support post of FIG. 1 A—for depending locating and locking tongue capture in a profiled fitting aperture or slot.
- FIG. 3C shows the demountable post extension of FIG. 3B being secured in position by tightening a bespoke screw clamp fitting.
- FIGS. 4A through 4C show sectional views of the demountable (stub) post extension of FIG. 3A .
- FIG. 4A shows a sectional view of the demountable (stub) post extension of FIG. 3A depicting locating and locking flanges of a depending, protruding tongue.
- FIG. 4B shows a sectional view of the demountable (stub) post extension of FIG. 3A taken along the broken line of FIG. 4C , illustrating a wedge-screw configuration for retracting the depending, protruding tongue—to achieve a clamp location and mounting action.
- FIG. 4C shows a cross-sectional view of the demountable (stub) post extension of FIG. 3A depicting orientation of wedge, screw and tongue elements.
- FIGS. 5A through 5D show side elevations of a demountable (stub) post extension with side lips, being fitted onto a support post of FIG. 1A .
- FIG. 5A shows a demountable (stub) post extension with side lips, with depending tongue being inserted into a support post of FIG. 1A .
- FIG. 5B shows the demountable (stub) post extension of FIG. 5A being rotated with respect to the support post of FIG. 1A .
- FIG. 5C shows the demountable (stub) post extension of FIG. 5B being secured in position by the tightening of a locking screw.
- FIG. 5D shows an enlarged view of one corner of the demountable (stub) post extension of FIG. 5C with profiled edge lip, to inhibit demountable post extension movement (specifically, rotation or lateral slip) with respect to the support post, upon locking screw tightening.
- FIGS. 6A through 6C show sectional views of the demountable (stub) post extension of FIG. 5A .
- FIG. 6A shows a sectional view of the demountable (stub) post extension of FIG. 5A , depicting locating and locking flanges of the depending, protruding tongue.
- FIG. 6B shows a sectional view of the demountable (stub) post extension of FIG. 5A taken along the broken line of FIG. 6C , depicting the wedge-screw configuration for retracting the protruding tongue.
- FIG. 6C shows a cross-sectional view of the demountable (stub) post extension of FIG. 5A illustrating the orientation of the wedge, screw and tongue sections.
- FIGS. 7A through 7F show a variant stub post extension being mounted on an existing support post.
- FIG. 7A shows a cross-section of a demountable stub post being inserted into a support post of FIG. 1A .
- FIG. 7B shows a cross-section of the stub post of FIG. 7A secured in position.
- FIGS. 7C through 7F are indicative schematics of stub post installation.
- FIG. 7C shows a perspective view of the stub post of FIG. 7A being inserted into the top capture and handling fitting—such as a standard box casting—of an existing (base) post to be extended.
- FIG. 7D depicts orientation of a depending stub post tongue, once it has been inserted into a base post top capture and handling fitting of FIG. 7C .
- FIG. 7E depicts orientation of the depending stub post tongue once the extension has been rotated 90 degrees in an anti-clockwise direction from FIG. 7D .
- FIG. 7F shows the configuration of FIG. 7E with stub post base fully in contact with the top of base post capture and handling fitting—allowing inner lip projections on the stub post base to slot into the capture and handling fitting slot for added security.
- FIG. 8 shows a flatrack container base fitted with four stub post extensions set inboard of the container ends.
- FIG. 9 shows a flatrack container base with bespoke profiled recesses to accommodate demounted stub post extensions.
- FIG. 10 shows an open top container fitted with stub post extensions at each corner.
- FIG. 11 shows a side-elevation view of a flatrack with folding end posts fitted with stub posts of the present invention.
- FIGS. 12A and 12B show flatracks of FIG. 11 , each loaded with over-height cargo, being lifted one on top of the other.
- FIG. 12A shows a flatrack loaded with over-height cargo and fitted with post extensions being lifted by standard crane spreader lift equipment onto a similar flatrack below.
- FIG. 12B shows the flatracks of FIG. 12A stacked one on top of the other as the lifting frame is removed.
- stacked flatracks could be coupled together and handled as a unitary load, using standard capture, handling and support end fittings, such as twist locks in box castings.
- (Stub) post extenders (or extensions) 10 are configured for attachment to existing posts 11 —as shown in FIGS. 1A through 1E , and flatrack bases 12 , as shown in FIGS. 2A through 2E .
- Attachment can be made to existing standard top (corner) capture handling and support fittings, such as box castings 13 , with conventional twist locks.
- An post extender 10 features at one (lower) end a special clamp tightening facility according to the invention, to inhibit relative movement of extension 10 and (base) post 11 .
- a post extender 10 is fitted with a standard capture, handling and support fitting, such as a box casting 18 for a conventional twist lock.
- post extenders 10 are self-contained (mini) post elements—and may be fitted to any freight container 20 with existing (corner) handling and lifting fittings 13 .
- post extenders 10 differ from conventional posts 11 , by their special (base) location and clamping and facility.
- (stub) post extenders 10 may be fitted to folded flatracks, platform flats with no posts, open top containers 33 and closed top containers (not shown).
- post extenders 10 can provide for load space above side wall height or depth—as depicted in FIG. 10 .
- individual post extenders 10 may also be mounted upon other post extenders 10 of the same or different span and in different (but equivalent cumulative span) combinations—for yet further cargo clearance height.
- end walls/doors 14 may be fitted between existing end posts 11 .
- (stub) post extenders 10 may be provided in a variety of different lengths to suit circumstances, however, 1 ft (0.3 m) and 2 ft (0.6 m) versions are thought to be particularly useful.
- FIG. 1C The main requirement for a (stub) post extension 10 is illustrated in FIG. 1C where a container cargo 15 protrudes above the height of existing posts 11 .
- the (stub) post extender 10 extends the height of existing posts 11 to fully accommodate cargo 15 —as shown in FIG. 1D .
- This configuration allows standard lifting equipment 35 to be employed.
- post extenders 10 provide cargo 15 clearance to allow capture, handling and support fitting access for a spreader beam 36 , carried by crane lift suspension 35 .
- 2 ft (0.6 m) (stub) post extenders 10 are specifically designed for
- Some flatracks 20 may be designed to support 2 ft (0.6 m) post extenders 10 at full rating and also accommodate (stub) post extenders 10 when end walls 14 and existing posts 11 are collapse folded into base 12 —as illustrated in FIG. 11 .
- 3 ft (0.9 m) post extenders 10 can withstand 2 ⁇ 3rds of the racking forces of ISO.
- flatrack 20 or open top container 33 is not designed to support (stub) post extenders 10 , additional on ship lashing may be required or necessitate that the container be placed below deck in cell guides.
- the whole (stub) post extender 10 should then be rotated through 90 degrees, so that:
- top casting 18 is orientated with end 16 ;
- the back face 23 of the base plate 24 should then be aligned with the back face 25 of the top corner casting 13 of container 20 .
- Screw 19 should then be tightened whilst looking through aperture 26 to ensure tongue 22 is drawing smoothly into a clamped position.
- Optional side plate 32 and edge lip 31 on base plate 24 act to prevent stub post 10 movement relative to casting 13 , while screw 19 is tightened.
- Plate 24 incorporates inner lips 37 (shown in FIGS. 7A through 7E ) which project downwards into the top slot of corner casting 13 only once post extender 10 has been rotated into its locked position.
- inner lips 37 also inhibit stub post 10 rotation and movement.
- tongue 22 abuts the top of corner casting 13 surrounding the orthogonal entry slot 39 .
- This abutment inhibits rotation of (stub) post extension 10 —so it cannot unlock itself.
- screw 19 When screw 19 is fully tightened, it may be secured and prevented from undoing itself by passing a 3 mm steel wire 27 or equivalent through a hole 28 in a head 29 of screw 19 and on through a hole 30 in base plate 24 .
- Twisting the ends of wire 27 together should mean that it cannot come accidentally undone.
- removal of (stub) post extenders 10 may be achieved by carrying out the installation fitting instructions (above) in reverse order.
- screw 19 should be tightened and retaining wire 27 (re-)fitted through holes 28 , 30 in screw 19 and plate 24 , to prevent loose parts from getting lost.
- Post extenders 10 are specifically designed to provide high operational strength at low production cost.
- extension stub post 10 could itself be telescopically adjustable, or assembled from smaller post elements.
- a post extension 10 may be mounted upon any capture, handling, and support fitting 13 , whether disposed at or intermediate container ends—as sown in FIG. 8 .
- a standard 40 ft (12.2 m) long container may feature post extenders 10 arranged to form eight posts of the same overall height—say, with four posts in the centre and four at the corners—to support two 20 ft (6.1 m) long containers above.
- de-mounted stub posts 10 may be parked or accommodated within bespoke recesses 34 in a container base 12 —as illustrated in FIG. 9 .
- a modular stub post extension 10 regime may be adopted, with prescribed lengths—each with a locating and secure clamping facility to ensure minimal free-play and attendant racking when fitted.
- Extension modules 10 can be orientated or handed according to intended corner installation position—with associated coded identification markings.
- the locking action replicates that for which existing corner capture, handling and support (box casting) fittings 13 are configured—such as standard twistlock action.
- a mounting plate 24 at the extender 10 bottom provides an abutment interface between extender 10 and mounting fitting box 13 , with only a locating and locking tongue 22 admitted into a profiled aperture of the box fitting 13 .
- a translation or draw wedge 21 acts between the upper surface of abutment plate 24 and depending locating and mounting tongue 22 to contrive relative movement therebetween.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pallets (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Clamps And Clips (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
A demountable post extension (10) is configured for re-location, as an independent stub post (re-) mounting, with self-contained lockable clamp mounting facility, to inhibit transverse racking.
Description
- It is known to allow over-height container cargo, to project above container height—as defined by the tops of corner lift facilities.
- A special crane suspension, or spreader, with elongated arms is used to reach down past projecting cargo for container capture and lift.
- Alternatively to a special crane, it is known to use post extensions—such as upon corner support posts—which bring capture, handling and support fittings back within standard crane reach.
- When post extensions are fitted to folding posts, as in platform base containers, provision is made for accommodating extended posts in the base.
- Typically, the extension, along with a main (base) post, is located in dedicated, specially elongated, base recesses—where the base configuration so allows without undermining the structure.
- With a permanent (either welded or bolted) post extension—aside from wholesale extended post removal—there is little option but to carry an entire extended post collapse folded on board.
- Permanent post extensions on non-folding flatracks take up valuable potential cargo space when not required.
- This means a lack of operational flexibility.
- Severable
- Even if severable when not required, such extensions represent an unproductive passive load if carried on board—or present a logistics storage problem if discarded.
- In addition, removable extensions have previously employed conventional twist locks—on occasion with modest screw tightening facility.
- However, with simple manual techniques and tools, a conventional twist lock screw cannot be tightened sufficiently to brace imposed (transverse) racking loads.
- Post extensions have not hitherto had a role independent of a base post.
- Re-Deployment
- In the present case, extensions are demountable and re-deployable, as independent (corner) stub posts upon a platform base, for low profile loads such as pipes.
- To this end extensions are provided with releasable base couplings, compatible with standard container capture, handling and support fittings.
- According to one aspect of the invention, a demountable post extension (or extender) has a clamp action mounting at one (base) end.
- A wedge driven (mechanically advantaged) clamp action can be used.
- In particular, a transverse movable wedge (21) is operable for longitudinal movement of a depending mounting jaw (22).
- The wedge movement is desirably screw-driven.
- Conveniently, the mounting is comprises a rotatable jaw, locatable in a base mounting plate (profiled) aperture, with mechanically advantaged clamp screw drive.
- Such a clamp drive could feature a screw mounted wedge, to interact with a slotted carrier for a depending mounting jaw.
- Operationally, a depending tongue is initially inserted into an aligned base mounting slot of a base post or flatrack base, then re-aligned—say, by rotation—relative to the slot, to inhibit tongue withdrawal, preparatory to clamp action.
- In a particular construction, clamp drive screw rotation retracts the tongue until it contacts the underside of a plate bounding a base mounting slot.
- Optionally, a post extension may feature a profiled lip or depending flange, to inhibit post rotation upon screw tightening.
- An inset depending abutment, locatable in a lateral extension of a tongue reception slot, may also be employed to inhibit post rotation upon tightening.
- In a particular embodiment, a post extension comprises an elongate tubular body, a carrier or traveller movable longitudinally of the body, with a depending locating and locking tongue, protruding from a base plate, a transverse positional adjustment screw, for engagement with a wedge located in a longitudinal slot in a carrier, so that screw rotation draws the wedge along the screw length and moves the carrier and in turn tongue longitudinally of the post.
- Post extensions could be configured for co-operative mounting upon other post extensions.
- A restraint tie, such as a clamp screw retention element, may be employed to inhibit inadvertent demount.
- A container, such as a collapsible flatrack, may be fitted with a demountable post extension. Such a container, may incorporate bespoke profile recesses in a platform deck, to accommodate demounted post extensions.
- There now follows a description of some particular embodiments of demountable stub posts, or post extenders, for use with collapsible flatrack containers, platform decks or collapse foldable support posts and/or walls, by way of example only, with reference to the accompanying diagrammatic and schematic drawings, in which:
-
FIGS. 1A through 1E show flatrack containers with four individual corner (handling, lifting and stacking) support posts fitted with respective demountable post extensions. - These support posts may be of fixed length, or themselves telescopically extendable (not shown).
- More specifically:
-
FIG. 1A shows a perspective view of a flatrack container with one corner support post being fitted with a demountable (stub) post extension. - The relative lengths or working heights of post base and extension admit of considerable variation according to operational circumstances.
- Generally, albeit not necessarily essentially, the extension is somewhat shorter than the base—hence the qualifier ‘stub’ post.
-
FIG. 1B shows a perspective view of the flatrack container ofFIG. 1A fitted with demountable post extensions on each existing corner (base) post. -
FIG. 1C shows a side elevation view of the flatrack container ofFIG. 1A without demountable post extensions, loaded with freight taller than the existing post height. -
FIG. 1D shows a side elevation view of the flatrack container ofFIG. 1C fitted with demountable post extensions—affording additional load depth or height capacity and overhead clearance. -
FIG. 1E shows a side elevation view of three of the flatrack containers ofFIG. 1D stacked upon one another. -
FIGS. 2A through 2E show flatrack container bases being fitted with demountable (stub) post extensions. - More specifically:
-
FIG. 2A shows a perspective view of a flatrack container base with a demountable (stub) post extension being fitted at a corner. -
FIG. 2B shows a perspective view of the flatrack container base ofFIG. 2A fitted with demountable (stub) post extensions on each corner. -
FIG. 2C shows a side elevation view of the flatrack container base ofFIG. 2A without demountable post extensions, loaded with freight taller than the corner (capture, handling and support) fitments. -
FIG. 2D shows a side elevation view of the flatrack container base ofFIG. 2C fitted with demountable post extensions—giving additional load depth capacity and marginal overload clearance. -
FIG. 2E shows a side elevation view of five of the flatrack container bases ofFIG. 1D stacked upon one another. -
FIGS. 3A through 3C show side elevation views of a demountable (stub) post extension being fitted upon a support post, such as ofFIG. 1A . - More specifically:
-
FIG. 3A shows a demountable (stub) post extension being offered up to a support post of FIG. 1A—with depending locating and locking tongue ready for insertion into a post top (box) capture, handling and support fitting. -
FIG. 3B shows the demountable post extension ofFIG. 3A being rotated with respect to the support post of FIG. 1A—for depending locating and locking tongue capture in a profiled fitting aperture or slot. -
FIG. 3C shows the demountable post extension ofFIG. 3B being secured in position by tightening a bespoke screw clamp fitting. -
FIGS. 4A through 4C show sectional views of the demountable (stub) post extension ofFIG. 3A . - More specifically:
-
FIG. 4A shows a sectional view of the demountable (stub) post extension ofFIG. 3A depicting locating and locking flanges of a depending, protruding tongue. -
FIG. 4B shows a sectional view of the demountable (stub) post extension ofFIG. 3A taken along the broken line ofFIG. 4C , illustrating a wedge-screw configuration for retracting the depending, protruding tongue—to achieve a clamp location and mounting action. -
FIG. 4C shows a cross-sectional view of the demountable (stub) post extension ofFIG. 3A depicting orientation of wedge, screw and tongue elements. -
FIGS. 5A through 5D show side elevations of a demountable (stub) post extension with side lips, being fitted onto a support post ofFIG. 1A . - More specifically:
-
FIG. 5A shows a demountable (stub) post extension with side lips, with depending tongue being inserted into a support post ofFIG. 1A . -
FIG. 5B shows the demountable (stub) post extension ofFIG. 5A being rotated with respect to the support post ofFIG. 1A . -
FIG. 5C shows the demountable (stub) post extension ofFIG. 5B being secured in position by the tightening of a locking screw. -
FIG. 5D shows an enlarged view of one corner of the demountable (stub) post extension ofFIG. 5C with profiled edge lip, to inhibit demountable post extension movement (specifically, rotation or lateral slip) with respect to the support post, upon locking screw tightening. -
FIGS. 6A through 6C show sectional views of the demountable (stub) post extension ofFIG. 5A . - More specifically:
-
FIG. 6A shows a sectional view of the demountable (stub) post extension ofFIG. 5A , depicting locating and locking flanges of the depending, protruding tongue. -
FIG. 6B shows a sectional view of the demountable (stub) post extension ofFIG. 5A taken along the broken line ofFIG. 6C , depicting the wedge-screw configuration for retracting the protruding tongue. -
FIG. 6C shows a cross-sectional view of the demountable (stub) post extension ofFIG. 5A illustrating the orientation of the wedge, screw and tongue sections. -
FIGS. 7A through 7F show a variant stub post extension being mounted on an existing support post. - More specifically:
-
FIG. 7A shows a cross-section of a demountable stub post being inserted into a support post ofFIG. 1A . -
FIG. 7B shows a cross-section of the stub post ofFIG. 7A secured in position. -
FIGS. 7C through 7F are indicative schematics of stub post installation. -
FIG. 7C shows a perspective view of the stub post ofFIG. 7A being inserted into the top capture and handling fitting—such as a standard box casting—of an existing (base) post to be extended. -
FIG. 7D depicts orientation of a depending stub post tongue, once it has been inserted into a base post top capture and handling fitting ofFIG. 7C . -
FIG. 7E depicts orientation of the depending stub post tongue once the extension has been rotated 90 degrees in an anti-clockwise direction fromFIG. 7D . -
FIG. 7F shows the configuration ofFIG. 7E with stub post base fully in contact with the top of base post capture and handling fitting—allowing inner lip projections on the stub post base to slot into the capture and handling fitting slot for added security. -
FIG. 8 shows a flatrack container base fitted with four stub post extensions set inboard of the container ends. -
FIG. 9 shows a flatrack container base with bespoke profiled recesses to accommodate demounted stub post extensions. -
FIG. 10 shows an open top container fitted with stub post extensions at each corner. -
FIG. 11 shows a side-elevation view of a flatrack with folding end posts fitted with stub posts of the present invention. -
FIGS. 12A and 12B show flatracks ofFIG. 11 , each loaded with over-height cargo, being lifted one on top of the other. - More specifically:
-
FIG. 12A shows a flatrack loaded with over-height cargo and fitted with post extensions being lifted by standard crane spreader lift equipment onto a similar flatrack below. -
FIG. 12B shows the flatracks ofFIG. 12A stacked one on top of the other as the lifting frame is removed. - In the illustrations, stacked flatracks could be coupled together and handled as a unitary load, using standard capture, handling and support end fittings, such as twist locks in box castings.
- Referring to the drawings . . .
- (Stub) post extenders (or extensions) 10 are configured for attachment to existing
posts 11—as shown inFIGS. 1A through 1E , andflatrack bases 12, as shown inFIGS. 2A through 2E . - Attachment can be made to existing standard top (corner) capture handling and support fittings, such as
box castings 13, with conventional twist locks. - An
post extender 10 features at one (lower) end a special clamp tightening facility according to the invention, to inhibit relative movement ofextension 10 and (base)post 11. - At the opposite (upper) end, a
post extender 10 is fitted with a standard capture, handling and support fitting, such as a box casting 18 for a conventional twist lock. - Effectively, post
extenders 10 are self-contained (mini) post elements—and may be fitted to anyfreight container 20 with existing (corner) handling and liftingfittings 13. - However, post
extenders 10 differ fromconventional posts 11, by their special (base) location and clamping and facility. - In some circumstances, a modular approach may be adopted, with
successive post extenders 10 coupled together serially or in tandem—although each interconnection must be firmly securable against relative movement. - Thus, (stub)
post extenders 10 may be fitted to folded flatracks, platform flats with no posts, opentop containers 33 and closed top containers (not shown). - Thus, for open-
top containers 33,post extenders 10 can provide for load space above side wall height or depth—as depicted inFIG. 10 . - Albeit not shown,
individual post extenders 10 may also be mounted uponother post extenders 10 of the same or different span and in different (but equivalent cumulative span) combinations—for yet further cargo clearance height. - In addition end walls/
doors 14 may be fitted between existing end posts 11. - In principle, (stub)
post extenders 10 may be provided in a variety of different lengths to suit circumstances, however, 1 ft (0.3 m) and 2 ft (0.6 m) versions are thought to be particularly useful. - The main requirement for a (stub)
post extension 10 is illustrated inFIG. 1C where acontainer cargo 15 protrudes above the height of existingposts 11. - This can result in handling difficulties and makes stacking of like containers unpractical and particularly undesirable when
fragile cargo 15 is involved. - Thus, the (stub)
post extender 10 extends the height of existingposts 11 to fully accommodatecargo 15—as shown inFIG. 1D . - This configuration allows
standard lifting equipment 35 to be employed. - More specifically, as shown in
FIG. 12A , postextenders 10 providecargo 15 clearance to allow capture, handling and support fitting access for aspreader beam 36, carried bycrane lift suspension 35. - (Stub)
post extenders 10 are configured to grip tightly upontop corner castings 13 with minimal (lateral) free play to inhibit transverse racking from the extended height. - The extra height of the (stub)
post extenders 10 imposes additional strain upon base hinges and endframes 14 offlatracks 20 and frames of opentop containers 33—which must be taken into account in permissible loading calculations. - More specifically, 2 ft (0.6 m) (stub)
post extenders 10 are specifically designed for - 15 ton (15,241 kg) per
end 16 transverse racking, - 7.5 ton (7,620 kg) per
side 17 longitudinal racking, - 86 ton (87,380 kg) stacking, and
- 45 ton (45,722 kg) maximum gross weight (MGW) top lift.
- Some flatracks 20 may be designed to support 2 ft (0.6 m)
post extenders 10 at full rating and also accommodate (stub)post extenders 10 whenend walls 14 and existingposts 11 are collapse folded intobase 12—as illustrated inFIG. 11 . - 3 ft (0.9 m)
post extenders 10, can withstand ⅔rds of the racking forces of ISO. - If the
flatrack 20 or opentop container 33 is not designed to support (stub)post extenders 10, additional on ship lashing may be required or necessitate that the container be placed below deck in cell guides. - Fitting (Stub) Post Extenders
- Note that there are right-hand and left-hand (stub)
post extenders 10, identifiable by each having a top corner casting 18 right or left-handed. - In order to clamp (stub)
post extenders 10 to acontainer 20screw 19 should be undone to slacken offwedge 21. - Depending
tongue 22 should then be inserted into the top corner casting 13 of an existingpost 11 orflatrack base 12. - The whole (stub)
post extender 10 should then be rotated through 90 degrees, so that: -
tongue 22 is locked inside corner casting 13; - post
extender 10 top casting 18 is orientated withend 16; - with
side 17 facing outwards from thecontainer 20 - as the relevant ISO standard specifies.
- The
back face 23 of thebase plate 24 should then be aligned with theback face 25 of the top corner casting 13 ofcontainer 20. -
Screw 19 should then be tightened whilst looking throughaperture 26 to ensuretongue 22 is drawing smoothly into a clamped position. -
Optional side plate 32 andedge lip 31 on base plate 24 (shown inFIG. 5C ), act to preventstub post 10 movement relative to casting 13, whilescrew 19 is tightened. -
Plate 24 incorporates inner lips 37 (shown inFIGS. 7A through 7E ) which project downwards into the top slot of corner casting 13 only oncepost extender 10 has been rotated into its locked position. - Thus,
inner lips 37 also inhibitstub post 10 rotation and movement. - Once clamped,
tongue 22 abuts the top of corner casting 13 surrounding theorthogonal entry slot 39. - This abutment inhibits rotation of (stub)
post extension 10—so it cannot unlock itself. - When
screw 19 is fully tightened, it may be secured and prevented from undoing itself by passing a 3mm steel wire 27 or equivalent through ahole 28 in ahead 29 ofscrew 19 and on through ahole 30 inbase plate 24. - Twisting the ends of
wire 27 together (with hand grip tools such as pliers) should mean that it cannot come accidentally undone. - The above procedure should be repeated at all four corners to obtain a fully operational extended
container 20. - (Stub) Post Extender Removal
- Generally, removal of (stub)
post extenders 10, may be achieved by carrying out the installation fitting instructions (above) in reverse order. - However, in order to release
wedge 21, it may be necessary to apply sudden shock impact (tap) disturbance initially to dislodgehead 29 ofscrew 19 once un-tightened, thereby urgingwedge 21 out of engagement. - Once
post extender 10 has been removed, screw 19 should be tightened and retaining wire 27 (re-)fitted throughholes screw 19 andplate 24, to prevent loose parts from getting lost. - Operationally, all four
post extenders 10 should be used and kept together. -
Post extenders 10, according to the present invention, are specifically designed to provide high operational strength at low production cost. - They can be securely locked in position, with little or no free play between the existing
post 11 orbase 12 and thepost extension 10. - In addition, they can be easily fitted or removed using standard manual techniques.
- It should be noted that, although not shown, the
extension stub post 10 could itself be telescopically adjustable, or assembled from smaller post elements. - A
post extension 10 may be mounted upon any capture, handling, and support fitting 13, whether disposed at or intermediate container ends—as sown inFIG. 8 . - Thus, say, a standard 40 ft (12.2 m) long container may feature
post extenders 10 arranged to form eight posts of the same overall height—say, with four posts in the centre and four at the corners—to support two 20 ft (6.1 m) long containers above. - Further, de-mounted stub posts 10 may be parked or accommodated within
bespoke recesses 34 in acontainer base 12—as illustrated inFIG. 9 . - Summary Overview
- Generally, a modular
stub post extension 10 regime may be adopted, with prescribed lengths—each with a locating and secure clamping facility to ensure minimal free-play and attendant racking when fitted. -
Extension modules 10 can be orientated or handed according to intended corner installation position—with associated coded identification markings. - The locking action replicates that for which existing corner capture, handling and support (box casting)
fittings 13 are configured—such as standard twistlock action. - A mounting
plate 24 at theextender 10 bottom provides an abutment interface betweenextender 10 and mountingfitting box 13, with only a locating and lockingtongue 22 admitted into a profiled aperture of thebox fitting 13. - A translation or draw
wedge 21 acts between the upper surface ofabutment plate 24 and depending locating and mountingtongue 22 to contrive relative movement therebetween. - Mix and Match Features
- Generally, in the embodiments, where feasible and appropriate, features may be mixed and matched to suit circumstances.
- It is not feasible to describe every such feature combination.
- Claim Brackets
- In the claims, phrases in brackets, vis { . . . }, alongside claim numbering are for ease of reference and themselves form no part of claim scope or interpretation.
- Component List
- 10 post extender
- 11 existing post
- 12 base
- 13 corner fitting/casting
- 14 end wall/gate
- 15 cargo
- 16 end
- 17 side
- 18 extender top fitting
- 19 screw
- 20 flatrack container
- 21 wedge
- 22 tongue
- 23 backface
- 24 base plate
- 25 backface
- 26 aperture
- 27 wire
- 28 hole
- 29 head
- 30 hole
- 31 edge lip
- 32 side plate
- 33 open top container
- 34 extender recess
- 35 lifting equipment
- 36 spreader plate
- 37 inner lip
- 38 carrier
- 39 entry slot
Claims (11)
1-13. (canceled)
14. A demountable post extension or extender (10), for extending the span of an elongate support post such as upon a platform deck container, with a clamp action mounting at a base end operable by a mechanically advantaged wedge drive using a transverse movable wedge (21), for longitudinal movement of a depending mounting jaw (22), to create an axial clamp action and a unitary overall past structure.
15. A post extension (10) of claim 14 , with a rotatable depending mounting jaw (22) locatable in a profiled mounting plate (13) aperture.
16. A post extension (10) of claim 15 , with an elongate tubular body, a carrier or traveler (38) movable longitundinally of the body, with a depending jaw (22) configured as a locating and locking tongue, protruding from a base plate, a transverse positional adjustment screw (10), for engagement with a wedge (21) located in a longitudinal slot in a carrier (38), so that screw (19) rotation draws the wedge (21) along the screw (19) and moves the carrier (38) and in turn tongue (22) longitudinally of the post (10).
17. A post extension (10) of claim 16 , with a depending flange (32) and/or profiled lip (31) to inhibit rotation upon screw (19) tightening.
18. A post extension (10) of claim 17 , with an inner abutment (37) depending from mounting plate (24) to locate in a tongue reception aperture (39) in a capture, handling and support fitting (13).
19. A post extension (10) of claim 14 , configured for cooperative mounting upon the other post extensions (10) or direct upon a container platform base.
20. A post extension (10) of claim 14 , with a restraint tie (27), such as a clamp screw retention element, to inhibit inadvertent release and demounting.
21. A support post for mounting upon a platform deck container such as a collapsible flat rack including a post extension of claim 14 .
22. A platform deck container (20), such as a collapsible flat rack, fitted with a post of claim 21 and/or a post extension of claim 14 .
23. A container (20) of claim 22 with one or more bespoke profile recesses (34) in a platform deck (12) to accommodate demounted post extensions (10) of claim 14 .
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0321782.5 | 2003-09-17 | ||
GBGB0321782.5A GB0321782D0 (en) | 2003-09-17 | 2003-09-17 | Demountable stub post |
PCT/GB2004/003963 WO2005026021A1 (en) | 2003-09-17 | 2004-09-17 | Demountable stub post |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080210687A1 true US20080210687A1 (en) | 2008-09-04 |
Family
ID=29227257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/572,182 Abandoned US20080210687A1 (en) | 2003-09-17 | 2004-09-17 | Demountable Stub Post |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080210687A1 (en) |
CN (1) | CN100572220C (en) |
DE (1) | DE112004001613T5 (en) |
GB (1) | GB0321782D0 (en) |
WO (1) | WO2005026021A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120304598A1 (en) * | 2010-02-10 | 2012-12-06 | Rainer Kapelski | Slot Gripper |
CN103318566A (en) * | 2013-03-14 | 2013-09-25 | 重庆万盛浮法玻璃有限公司 | Two-way opened glass packaging bracket |
US8915684B2 (en) | 2005-09-27 | 2014-12-23 | Fontaine Trailer Company, Inc. | Cargo deck |
US20150014265A1 (en) * | 2013-07-09 | 2015-01-15 | Ip Power Holdings Limited | Collapsible rack |
US9156607B2 (en) | 2012-11-09 | 2015-10-13 | Fontaine Engineered Products, Inc. | Collapsible intermodal flat rack |
US20160278516A1 (en) * | 2015-03-26 | 2016-09-29 | James Lawrence | Product shipping system |
US9663021B1 (en) | 2016-03-24 | 2017-05-30 | Northrop Grumman Systems Corporation | Expanding clamping twistlock for ISO aperture securement |
DE202018104810U1 (en) * | 2018-08-21 | 2019-11-26 | Modulraum GmbH | Space cell arrangement |
CN110589270A (en) * | 2019-08-29 | 2019-12-20 | 广东新会中集特种运输设备有限公司 | Platform type container |
WO2021050644A1 (en) | 2019-09-10 | 2021-03-18 | Sea Box, Inc. | Intermodal warehousing system |
US11021320B2 (en) * | 2016-08-01 | 2021-06-01 | Nantong Cimc-Special Transportation Equipment Manufacture Co., Ltd. | Foldable double-deck frame container |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005013047U1 (en) * | 2005-08-18 | 2005-11-03 | Korte, Hermann, Dipl.-Ing. | Plant storing, watering and transporting device, has centering unit within lower end of each bush for interaction with upper end of bush, and another centering unit is designed for interaction with upper end of supporting bar |
DE202006019210U1 (en) * | 2006-12-20 | 2008-05-15 | Liebherr-Werk Ehingen Gmbh | Ballast weight for mobile large cranes |
NL2001214C2 (en) * | 2008-01-25 | 2009-07-30 | Arie Van Donge B V | Transport container, method for stacking containers, and kit of containers and roofs. |
CN102009805B (en) * | 2010-11-03 | 2013-03-06 | 广东现代摩比斯机电有限公司 | Extended column for folding container, using method and transportation method thereof |
CN104139936B (en) * | 2014-06-04 | 2016-03-30 | 广东新会中集特种运输设备有限公司 | Demountable stub post and there is its platform based container and platform flat |
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-
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- 2004-09-17 US US10/572,182 patent/US20080210687A1/en not_active Abandoned
- 2004-09-17 DE DE112004001613T patent/DE112004001613T5/en not_active Withdrawn
- 2004-09-17 WO PCT/GB2004/003963 patent/WO2005026021A1/en active Application Filing
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US3609824A (en) * | 1968-03-30 | 1971-10-05 | Blohm Voss Ag | Coupling |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8915684B2 (en) | 2005-09-27 | 2014-12-23 | Fontaine Trailer Company, Inc. | Cargo deck |
US9021671B2 (en) * | 2010-02-10 | 2015-05-05 | Kalp Gmbh | Slot gripper |
US20120304598A1 (en) * | 2010-02-10 | 2012-12-06 | Rainer Kapelski | Slot Gripper |
US9156607B2 (en) | 2012-11-09 | 2015-10-13 | Fontaine Engineered Products, Inc. | Collapsible intermodal flat rack |
CN103318566A (en) * | 2013-03-14 | 2013-09-25 | 重庆万盛浮法玻璃有限公司 | Two-way opened glass packaging bracket |
US20150014265A1 (en) * | 2013-07-09 | 2015-01-15 | Ip Power Holdings Limited | Collapsible rack |
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US20160278516A1 (en) * | 2015-03-26 | 2016-09-29 | James Lawrence | Product shipping system |
US9663021B1 (en) | 2016-03-24 | 2017-05-30 | Northrop Grumman Systems Corporation | Expanding clamping twistlock for ISO aperture securement |
US11021320B2 (en) * | 2016-08-01 | 2021-06-01 | Nantong Cimc-Special Transportation Equipment Manufacture Co., Ltd. | Foldable double-deck frame container |
DE202018104810U1 (en) * | 2018-08-21 | 2019-11-26 | Modulraum GmbH | Space cell arrangement |
CN110589270A (en) * | 2019-08-29 | 2019-12-20 | 广东新会中集特种运输设备有限公司 | Platform type container |
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Also Published As
Publication number | Publication date |
---|---|
GB0321782D0 (en) | 2003-10-15 |
WO2005026021B1 (en) | 2005-05-26 |
CN1852846A (en) | 2006-10-25 |
WO2005026021A1 (en) | 2005-03-24 |
CN100572220C (en) | 2009-12-23 |
DE112004001613T5 (en) | 2006-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CLIVE-SMITH COWLEY LTD., UNITED KINGDOM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CLIVE-SMITH, MARTIN;REEL/FRAME:017748/0992 Effective date: 20060307 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |