US3753588A - Container lifting twist-lock - Google Patents

Container lifting twist-lock Download PDF

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Publication number
US3753588A
US3753588A US00152259A US3753588DA US3753588A US 3753588 A US3753588 A US 3753588A US 00152259 A US00152259 A US 00152259A US 3753588D A US3753588D A US 3753588DA US 3753588 A US3753588 A US 3753588A
Authority
US
United States
Prior art keywords
locking member
containers
container
holes
locking
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 - Lifetime
Application number
US00152259A
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English (en)
Inventor
H Backteman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BACKTEMANS PATENTER AB
Original Assignee
BACKTEMANS PATENTER AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BACKTEMANS PATENTER AB filed Critical BACKTEMANS PATENTER AB
Application granted granted Critical
Publication of US3753588A publication Critical patent/US3753588A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/663—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for containers

Definitions

  • ABSTRACT A locking device for use with a container lifting yoke and adapted for insertion into the top hole of containers constructed in accordance with either 180 or Sealand specification.
  • the locking device includes a locking member having a cross sectional shape enabling insertion into the top holes of both 180 and Sealand containers, and a support shaft for the locking member to turn the latter 90 to lock the locking member below the hole in the container.
  • the locking member is mounted eccentrically on the shaft and rotation of the shaft itself is effected about an axis which is eccentric to the vertical centers of the holes in the ISO and Sealand containers.
  • the present invention relates to lifting devices and particularly to a twist-lock shaped so as to fit into container corner casting apertures of different types and standards.
  • each hoisting device it is necessary in each hoisting device to use at least two different lifting yokes, one for containers of ISO-standard and the other one for containers of Sealand-type.
  • the invention essentially comprises a twist-lock device, the cross section of which is characterized by one substantially straight longitudinal side and an opposite longitudinal side provided with a curved protrusion, the center of rotation of the twist-lock being deliberately eccentric in relation to the centers of the comer casting apertures of both said types.
  • FIG. 1 is a plan view of two comer casting apertures as they would be provided on the same container, the two most frequently encountered types of apertures being indicated by respectively full (Sealand-type) and broken (ISO-type) lines, the twist-lock being shown in both the locked and unlocked positions.
  • FIG. 2 is a side elevation view of the twist-lock of the invention.
  • FIG. 3 is a horizontal cross sectional view of the twist-lock of the invention.
  • FIG. 1 shows the corner casting apertures of the two main types of containers and the extent of the difference therebetween.
  • the corner casting aperture of the ISO-container is designated as 2 and that of the Sealand-container as 3.
  • the ISO-standard aperture 2 is rectangular
  • the Sealand aperture 3 is sub stantially rectangular but has a circular central portion of greater diameter than the transverse dimension of two narrower, diametrically opposed portions of the aperture.
  • center of rotation 6 of the twist-lock according to the present invention is eccentric in relation to the center points 7 and 8 of the corner casting apertures both of the ISO- and of the Sealand-containers, and further that the spacing on center of the ISO-comer castings is less than that of the Sealand-type.
  • the twist-lock l as shown has a straight longitudinal side 4 and an opposite longitudinal side 5 provided with a curved protrusion.
  • the turning center of the twist-lock is eccentric in relation to the center points 7 and 8 of the comer casting apertures 2 and 3.
  • One of the requirements of the ISO-recommendations regarding twist-lock-type lifting devices is that the lifting bearing area of the twist-lock within the corner casting shell be not less than 8 cm".
  • the construction and mode of operation of the twist-lock according to the present invention ensures that the minimum bearing lifting areas in both types of container corner castings are achieved. If the center 6 of the twist-lock were to coincide with either the center of the Sealand aperture 8 or the centre of the ISO aperture 7, the twistlock could not securely be locked by a rotation.
  • a lifting yoke provided with the twist-locks accord ing to the present invention can thus be used for containers of both the ISO-standard and the Sealand-type so that only one lifting yoke need be provided for lifting the two types of containers.
  • a locking device for use with a container lifting yoke and adapted for vertical insertion into the top holes of first and second different containers, the hole of the first container being substantially rectangular and the hole of the second container being substantially rectangular with a central circular portion, the holes of the different containers having dissimilar respective centers, the locking device including a locking member, and a support shaft for said locking member which is rotatable about a fixed central axis, said locking member having a cross sectional shape, which in relation to said fixed axis, enables vertical insertion into the top holes of either of said first and second containers, the support shaft for the locking member being rotatable about said fixed axis to turn the locking member below the hole in the container, said locking member being mounted eccentrically on the lower end of said shaft and being constructed and arranged relative to the holes of the first and second containers so that the coaxial rotation of the support shaft takes place about an axis which is eccentric to the vertical centers of the holes in the first and second containers and enables the locking members to engage the containers below the holes to operatively support the
  • a locking device as claimed in claim 1 wherein said protrusion is in part of circular shape as seen in horizontal section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Sealing Of Jars (AREA)
  • Package Frames And Binding Bands (AREA)
  • Stackable Containers (AREA)
  • Connection Of Plates (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
US00152259A 1970-06-12 1971-06-11 Container lifting twist-lock Expired - Lifetime US3753588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE08229/70A SE332285B (xx) 1970-06-12 1970-06-12

Publications (1)

Publication Number Publication Date
US3753588A true US3753588A (en) 1973-08-21

Family

ID=20273501

Family Applications (1)

Application Number Title Priority Date Filing Date
US00152259A Expired - Lifetime US3753588A (en) 1970-06-12 1971-06-11 Container lifting twist-lock

Country Status (13)

Country Link
US (1) US3753588A (xx)
JP (1) JPS531537B1 (xx)
BE (1) BE768436A (xx)
CA (1) CA942799A (xx)
DE (2) DE7122672U (xx)
DK (1) DK135980B (xx)
ES (1) ES198773Y (xx)
FI (1) FI50867C (xx)
FR (1) FR2095215B1 (xx)
GB (1) GB1355257A (xx)
IE (1) IE36252B1 (xx)
NL (1) NL168472C (xx)
SE (1) SE332285B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999057055A1 (en) * 1998-05-04 1999-11-11 Ian Alexander Paterson Improvements relating to the lifting of precast bodies such as concrete panels

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI66330C (fi) 1981-01-21 1984-10-10 Valmet Oy Lyftanordning avsedd foer hantering av containers samt griptapp foer containers
DE3822034A1 (de) * 1988-06-30 1990-01-04 Dieter Borchardt Twistlock
EP2851327A1 (en) 2013-09-23 2015-03-25 Willem Loeve Coupling device and method of coupling onto a corner fitting

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456967A (en) * 1967-08-17 1969-07-22 Fruehauf Corp Container coupler
US3514146A (en) * 1968-02-26 1970-05-26 Fruehauf Corp Extensible lifting spreader

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368838A (en) * 1966-06-30 1968-02-13 Grace W R & Co Shipping container coupling
FR1585077A (xx) * 1968-06-28 1970-01-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456967A (en) * 1967-08-17 1969-07-22 Fruehauf Corp Container coupler
US3514146A (en) * 1968-02-26 1970-05-26 Fruehauf Corp Extensible lifting spreader

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999057055A1 (en) * 1998-05-04 1999-11-11 Ian Alexander Paterson Improvements relating to the lifting of precast bodies such as concrete panels

Also Published As

Publication number Publication date
NL7108088A (xx) 1971-12-14
FR2095215A1 (xx) 1972-02-11
NL168472B (nl) 1981-11-16
DE2129178A1 (de) 1971-12-16
DE2129178C3 (de) 1982-09-23
DE2129178B2 (de) 1980-10-09
FR2095215B1 (xx) 1976-03-19
FI50867B (xx) 1976-04-30
DE7122672U (de) 1982-12-09
BE768436A (fr) 1971-11-03
DK135980B (da) 1977-07-25
FI50867C (fi) 1976-08-10
CA942799A (en) 1974-02-26
IE36252L (en) 1971-12-12
ES198773Y (es) 1975-11-16
GB1355257A (en) 1974-06-05
SE332285B (xx) 1971-02-01
NL168472C (nl) 1982-04-16
ES198773U (es) 1975-06-16
DK135980C (xx) 1977-12-27
JPS531537B1 (xx) 1978-01-19
IE36252B1 (en) 1976-09-29

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