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ES438294A1 - Boom latch mechanism - Google Patents

Boom latch mechanism

Info

Publication number
ES438294A1
ES438294A1 ES438294A ES438294A ES438294A1 ES 438294 A1 ES438294 A1 ES 438294A1 ES 438294 A ES438294 A ES 438294A ES 438294 A ES438294 A ES 438294A ES 438294 A1 ES438294 A1 ES 438294A1
Authority
ES
Spain
Prior art keywords
boom
section
plunger
manual
fly section
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
Application number
ES438294A
Other languages
Spanish (es)
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.)
Kidde Inc
Original Assignee
Walter Kidde and Co Inc
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 Walter Kidde and Co Inc filed Critical Walter Kidde and Co Inc
Publication of ES438294A1 publication Critical patent/ES438294A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32467—Telescoping members
    • Y10T403/32516—Remotely actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The manual fly section of a multi-section telescopic crane boom is extended and retracted through the cooperative use of an extensible and retractable plunger on one of the boom extension cylinders and a manual locking pin insertable through registering openings of the fly section and outer mid-section of the telescopic boom. The latching plunger cooperates with a notched latch bar attached to the interior of the manual fly section and the plunger is actuated manually from the exterior of the boom by a rotary screw mechanism.
ES438294A 1974-07-26 1975-06-06 Boom latch mechanism Expired ES438294A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492265A US3921819A (en) 1974-07-26 1974-07-26 Boom latch mechanism

Publications (1)

Publication Number Publication Date
ES438294A1 true ES438294A1 (en) 1977-02-01

Family

ID=23955611

Family Applications (1)

Application Number Title Priority Date Filing Date
ES438294A Expired ES438294A1 (en) 1974-07-26 1975-06-06 Boom latch mechanism

Country Status (13)

Country Link
US (1) US3921819A (en)
JP (1) JPS5624710Y2 (en)
BE (1) BE830788A (en)
BR (1) BR7504763A (en)
CA (1) CA1023307A (en)
DE (1) DE2528129C2 (en)
ES (1) ES438294A1 (en)
FR (1) FR2279656A1 (en)
GB (1) GB1500580A (en)
IT (1) IT1033913B (en)
NL (1) NL179803C (en)
PL (1) PL117432B1 (en)
ZA (1) ZA753335B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926292A1 (en) * 1979-06-29 1981-01-08 Harnischfeger Gmbh PARTICULARLY MOBILE TELESCOPIC BOOM CRANE
US4396126A (en) * 1980-11-24 1983-08-02 Harnischfeger Corporation Telescoping crane boom
US4434902A (en) 1981-03-05 1984-03-06 Fmc Corporation Apparatus for extending and retracting a manual boom section
US4492311A (en) * 1981-08-17 1985-01-08 Fmc Corporation Coupling and latching mechanism for extensible boom
US4592474A (en) * 1981-08-17 1986-06-03 Fmc Corporation Coupling and latching mechanism for extensible boom
US4514939A (en) * 1981-08-17 1985-05-07 Fmc Corporation Extensible boom with manual section stored in base
US4433515A (en) 1981-11-04 1984-02-28 Kidde, Inc. Remotely operable latch and locking pin for a multi-section boom including a manual fly section
US4635805A (en) * 1981-11-05 1987-01-13 Kidde, Inc. Crane boom locking pin insertion indicator and actuator means
US4664272A (en) * 1981-11-05 1987-05-12 Kidde, Inc. Telescoping crane boom with locking and indicator means
FR2523565B1 (en) * 1982-03-19 1985-12-06 Ppm Sa TELESCOPIC BOOM WITH AN EXTENSION
US4585132A (en) * 1984-09-10 1986-04-29 Fmc Corporation Extensible boom with manual section stored in base
US4688690A (en) * 1986-03-07 1987-08-25 Harnischfeger Corporation Method and apparatus for extending fly section of crane boom
US5609261A (en) * 1995-09-19 1997-03-11 Hydra Tech, Inc. Pivotable boom rest and latch
DE19631547B4 (en) * 1996-07-24 2004-05-06 Terex-Demag Gmbh & Co. Kg Telescopic boom, especially for stationary or mobile cranes
DE19811813B4 (en) 1998-03-18 2005-11-24 Grove U.S. LLC (n.d.Ges.d.Staates Delaware) Lateral boom interlock
DE19826924A1 (en) * 1998-06-17 1999-12-23 Grove Us Llc Boom fixation with adjusting cylinder
DE10022373B4 (en) * 2000-05-08 2005-11-24 Grove U.S. Llc Locking and operating unit for side arm lock
DE10048224B4 (en) * 2000-09-21 2005-06-02 Terex-Demag Gmbh & Co. Kg Locking unit for a telescopic boom of a crane
US7370904B2 (en) * 2006-03-21 2008-05-13 Mcneilus Truck And Manufacturing, Inc. Covering device for a vehicle container
DE102007052954B3 (en) * 2007-10-31 2009-07-09 Terex Demag Gmbh Crane with telescopic boom
DE102009009944B4 (en) * 2009-02-20 2011-02-24 Terex-Demag Gmbh Securing and bolting unit
CN103016742B (en) * 2013-01-04 2015-04-22 四川日机密封件股份有限公司 High-pressure-resistant mechanical sealing device
CN103738864B (en) * 2013-12-19 2016-01-20 三一汽车起重机械有限公司 Crane arm and hoisting crane
US11117789B2 (en) * 2018-06-04 2021-09-14 Manitowoc Crane Companies, Llc Telescoping boom with rotary extension and locking system
US11958726B2 (en) * 2019-04-04 2024-04-16 Tadano Ltd. Work machine
JP7662942B2 (en) * 2021-10-28 2025-04-16 株式会社タダノ Work equipment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961837A (en) * 1956-09-28 1960-11-29 Delong Corp Supporting leg assembly for marine platform
US3243052A (en) * 1965-04-08 1966-03-29 Grove Mfg Co Telescopic crane boom with longitudinally extending cylinder connector
US3474833A (en) * 1966-08-26 1969-10-28 Armed Forces Equipment Dev Cor Telescoping tube assembly
US3398645A (en) * 1966-11-30 1968-08-27 Nat Crane Corp Multiple extension apparatus
CH476625A (en) * 1967-12-22 1969-08-15 Warner Swasey Co Telescopic, hydraulically extendable loading boom for a crane, and method for operating the loading boom
US3795321A (en) * 1972-05-18 1974-03-05 Harnischfeger Corp Telescoping crane boom
US3842985A (en) * 1972-12-15 1974-10-22 Harnischfeger Corp Means for extending and retracting crane boom section

Also Published As

Publication number Publication date
DE2528129A1 (en) 1976-02-05
BR7504763A (en) 1976-07-06
NL7507319A (en) 1976-01-28
JPS5117972U (en) 1976-02-09
IT1033913B (en) 1979-08-10
FR2279656B1 (en) 1980-04-18
JPS5624710Y2 (en) 1981-06-10
US3921819A (en) 1975-11-25
NL179803B (en) 1986-06-16
CA1023307A (en) 1977-12-27
FR2279656A1 (en) 1976-02-20
PL117432B1 (en) 1981-08-31
BE830788A (en) 1975-12-29
ZA753335B (en) 1976-04-28
NL179803C (en) 1986-11-17
AU8147375A (en) 1976-11-25
GB1500580A (en) 1978-02-08
DE2528129C2 (en) 1986-10-30

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