US3878944A - Crane support structure - Google Patents

Crane support structure Download PDF

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Publication number
US3878944A
US3878944A US393059A US39305973A US3878944A US 3878944 A US3878944 A US 3878944A US 393059 A US393059 A US 393059A US 39305973 A US39305973 A US 39305973A US 3878944 A US3878944 A US 3878944A
Authority
US
United States
Prior art keywords
ring
car body
arms
crane
lower car
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
US393059A
Other languages
English (en)
Inventor
Dantel E Beduhn
Sr James G Morrow
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US393059A priority Critical patent/US3878944A/en
Priority to CA203,389A priority patent/CA983915A/en
Priority to GB2884274A priority patent/GB1413465A/en
Priority to IT24903/74A priority patent/IT1015739B/it
Priority to FR7425504A priority patent/FR2242322B1/fr
Priority to NL7409942.A priority patent/NL166902C/xx
Priority to SE7409623A priority patent/SE391170B/xx
Priority to DE2441278A priority patent/DE2441278C3/de
Application granted granted Critical
Publication of US3878944A publication Critical patent/US3878944A/en
Anticipated expiration legal-status Critical
Assigned to BANKERS TRUST COMPANY reassignment BANKERS TRUST COMPANY GRANT OF SECURITY INTEREST Assignors: MANITOWOC FOODSERVICE COMPANIES, INC. (FORMERLY MANITOWOC FOODSERVICE GROUP, INC.)
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
    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • 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

Definitions

  • ABSTRACT A support structure for an otherwise mobile crane in which a ring is secured to the lower car body of the crane, a plurality of arms are vertically pivoted on the car body and extended out beneath the ring at spaced points around the ring periphery, and jacks are carried at the ends of the arms which, when extended, support the ring on the ground and lift the lower car body clear of the ground.
  • the primary aim of the present invention is to provide an improved crane support structure utilizing a track-like ring which is easier and substantially less expensive to set up into crane operating condition.
  • FIG. 1 is a fragmentary elevation of a crane support structure embodying the present invention
  • FIG. 2 is a section taken approximately along the line 2-2 in FIG. 1;
  • FIG. 3 is an enlarged fragmentary section taken approximately along the line 3-3 in FIG. 2.
  • a crane having an upper structure 11 mounted for rotation on a car body 12 through a roller path 13.
  • the crane 10 is normally mobile and, for moving over the ground, crawler assemblies 14 form part of the car body 12.
  • a track-like ring 15 is secured to the ends of support beams 16 and 17 so as to horizontally surround the car body 12.
  • the ring has an I-beam cross section with a hardened upper path surface 18 (see FIG.
  • a plurality of ring support arms 21 are pivoted for vertical movement on the car body 12 and extend outwardly to underlie the ring 15 at spaced points around the ring periphery.
  • a plurality ofjacks 22 are positioned one at the end of each of the arms 21 .with the jacks 22 being sized so as to engage the ground when extended and lift the ring 15, the car body 12 and the crawler assemblies 14 from the ground;
  • lugs 23 on the arms 21 overlie a lower flange. on the ring 15 so as to interengage the arms and the ring (see FIG. 3).
  • the jacks 22 are manually operated and include an internally threaded collar 25 fixed at the end of each arm 21 which receives a threaded column 26.
  • the lower end of the column 26 is formed as a socket knob 27 sized to fit in a socket portion of a foot plate 28.
  • Handles 29 are provided at the tops of the columns 26.
  • hydraulic jacks 3 1 are mounted at the four ends of the support beams 16, I7. Manipulation of these jacks 31 allows the ring 15 to be lifted and leveled, whereupon the manual jacks 22 can be quickly extended to provide firm support for the ring completely around its periphery.
  • a boom carrier 35 is pivoted for vertical movement on the upper structure 11 and provided with a roller assembly 36 for rotation on the ring 15
  • a boom 37 is mounted on the carrier at what becomes the load lifting fulcrum 38 of the system, and a load lift line 39 runs along and over the end of the boom 37.
  • a counterweight carrier 41 is also pivoted for vertical movement at 42 on the upper structure 11 and the carrier extends the opposite direction from the boom carrier 35 to ride on the ring 15 through roller assemblies 43, only one of which is shown.
  • Counterweights 44 are stacked on the carrier 41.
  • a mast 46 is mounted on the carrier 35 and boom lift rigging, only one line 47 being shown, interconnects the tops of the mast 46 and the boom 37 for moving the boom vertically.
  • the mast 46 is secured by pendants 48 to gantry structure 49 on the upper structure 11 to form a substantially rigid assembly, and other pendants 51 provide substantially rigid connections between the counterweight carrier 41 and the top of the mast 46.
  • Struts 52 establish the substantially fixed angular position to the mast 46. This geometry creates a stable, high capacity crane.
  • the crane assembly can be quickly brought to rest on the crawler assemblies 14, moved to a new location. and again set up with less time. effort and expense than formerly required when using timber blocking.
  • the support arms 21 form a rigid lattice beneath the ring 15 without subjecting the jacks to tilting loads.
  • a crane having an upper structure pivoted on a lower car body including means for moving the crane over the ground.
  • the combination comprising. a pair of support beams secured to and forming a part of said lower car body. a track-like ring secured to said beams and horizontally surrounding said lower car body, a plurality of ring support arms pivoted for vertical movement on said lower car body and extending outwardly to underlie saidring as spaced points around the ring. some of said arms being pivoted on said support beams of said car body. means interengaging said arms and said ring to prevent the arms fromv swinging away from the ring, and a plurality of jacks one positioned at the end of each of said arms and sized to engage the ground when extended so as to lift the ring. the lower car body and the means for movingthe crane relative for initially positioning said ring and lower car body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
US393059A 1973-08-30 1973-08-30 Crane support structure Expired - Lifetime US3878944A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US393059A US3878944A (en) 1973-08-30 1973-08-30 Crane support structure
CA203,389A CA983915A (en) 1973-08-30 1974-06-25 Crane support structure
GB2884274A GB1413465A (en) 1973-08-30 1974-06-28 Crane support structure
IT24903/74A IT1015739B (it) 1973-08-30 1974-07-08 Struttura di supporto per gru
FR7425504A FR2242322B1 (de) 1973-08-30 1974-07-23
NL7409942.A NL166902C (nl) 1973-08-30 1974-07-23 Hijskraan.
SE7409623A SE391170B (sv) 1973-08-30 1974-07-24 Mobilkran med lastupptagande stodring
DE2441278A DE2441278C3 (de) 1973-08-30 1974-08-28 Abstützung für einen Drehkran

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US393059A US3878944A (en) 1973-08-30 1973-08-30 Crane support structure

Publications (1)

Publication Number Publication Date
US3878944A true US3878944A (en) 1975-04-22

Family

ID=23553110

Family Applications (1)

Application Number Title Priority Date Filing Date
US393059A Expired - Lifetime US3878944A (en) 1973-08-30 1973-08-30 Crane support structure

Country Status (8)

Country Link
US (1) US3878944A (de)
CA (1) CA983915A (de)
DE (1) DE2441278C3 (de)
FR (1) FR2242322B1 (de)
GB (1) GB1413465A (de)
IT (1) IT1015739B (de)
NL (1) NL166902C (de)
SE (1) SE391170B (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195740A (en) * 1977-04-27 1980-04-01 The Manitowoc Company, Inc. Lift crane support system
US4196816A (en) * 1977-11-01 1980-04-08 Fmc Corporation Heavy duty crane
DE3026850A1 (de) * 1979-07-17 1981-02-05 Manitowoc Co Kran
DE3026884A1 (de) * 1979-07-17 1981-02-12 Manitowoc Co Kran
US4336889A (en) * 1980-10-27 1982-06-29 Fmc Corporation Ring supported truck crane and method of setting up
US4381060A (en) * 1980-07-09 1983-04-26 The Manitowoc Company, Inc. Ring supported mobile tower crane
US4382519A (en) * 1979-07-17 1983-05-10 The Manitowoc Company, Inc. Traveling attachment for ring supported lift crane
US4387814A (en) * 1981-09-08 1983-06-14 The Manitowoc Company, Inc. Traveling attachment for ring supported lift crane
US4394911A (en) * 1980-04-08 1983-07-26 Fmc Corporation Heavy duty crane
US4446976A (en) * 1982-02-16 1984-05-08 Fmc Corporation Reversible outrigger crane support
US4483448A (en) * 1980-04-08 1984-11-20 Fmc Corporation Heavy duty crane
US4729486A (en) * 1986-04-07 1988-03-08 The Manitowoc Company, Inc. Lift enhancing beam attachment with movable counterweights
US4953722A (en) * 1988-11-09 1990-09-04 The Manitowoc Company, Inc. Crane and lift enhancing beam attachment with moveable counterweight
US5522515A (en) * 1993-01-08 1996-06-04 The Manitowoc Company, Inc. Ring segment connection
US5941401A (en) * 1997-01-29 1999-08-24 Manitowoc Crane Group, Inc. Counterweight handling system for ring supported cranes
JP2009509888A (ja) * 2005-09-28 2009-03-12 テレックス−デマーク・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト クレーン、特に狭い輪距と拡張された支持ベースとを有する移動式クレーン
CN1891611B (zh) * 2005-07-06 2010-04-21 安徽柳工起重机有限公司 步履式起重机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570679A (en) * 1977-04-27 1980-07-02 Manitowoc Co Lift crane support system
US4387813A (en) * 1979-07-17 1983-06-14 The Manitowoc Company, Inc. Movable ring supported lift crane
FR2518981B1 (fr) * 1981-12-28 1986-02-28 Ppm Sa Engin de travaux publics a chassis double

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US632368A (en) * 1899-03-30 1899-09-05 Arthur W Robinson Steam-shovel.
US3485383A (en) * 1968-02-09 1969-12-23 Manitowoc Co Auxiliary support for cranes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US632368A (en) * 1899-03-30 1899-09-05 Arthur W Robinson Steam-shovel.
US3485383A (en) * 1968-02-09 1969-12-23 Manitowoc Co Auxiliary support for cranes
US3485383B1 (de) * 1968-02-09 1988-05-03

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195740A (en) * 1977-04-27 1980-04-01 The Manitowoc Company, Inc. Lift crane support system
US4196816A (en) * 1977-11-01 1980-04-08 Fmc Corporation Heavy duty crane
DE3026850A1 (de) * 1979-07-17 1981-02-05 Manitowoc Co Kran
FR2461678A1 (fr) * 1979-07-17 1981-02-06 Manitowoc Co Grue mobile de levage montee sur couronne
DE3026884A1 (de) * 1979-07-17 1981-02-12 Manitowoc Co Kran
US4382519A (en) * 1979-07-17 1983-05-10 The Manitowoc Company, Inc. Traveling attachment for ring supported lift crane
US4483448A (en) * 1980-04-08 1984-11-20 Fmc Corporation Heavy duty crane
US4394911A (en) * 1980-04-08 1983-07-26 Fmc Corporation Heavy duty crane
US4381060A (en) * 1980-07-09 1983-04-26 The Manitowoc Company, Inc. Ring supported mobile tower crane
US4336889A (en) * 1980-10-27 1982-06-29 Fmc Corporation Ring supported truck crane and method of setting up
US4387814A (en) * 1981-09-08 1983-06-14 The Manitowoc Company, Inc. Traveling attachment for ring supported lift crane
US4446976A (en) * 1982-02-16 1984-05-08 Fmc Corporation Reversible outrigger crane support
US4729486A (en) * 1986-04-07 1988-03-08 The Manitowoc Company, Inc. Lift enhancing beam attachment with movable counterweights
US4953722A (en) * 1988-11-09 1990-09-04 The Manitowoc Company, Inc. Crane and lift enhancing beam attachment with moveable counterweight
US5522515A (en) * 1993-01-08 1996-06-04 The Manitowoc Company, Inc. Ring segment connection
US5941401A (en) * 1997-01-29 1999-08-24 Manitowoc Crane Group, Inc. Counterweight handling system for ring supported cranes
CN1891611B (zh) * 2005-07-06 2010-04-21 安徽柳工起重机有限公司 步履式起重机
JP2009509888A (ja) * 2005-09-28 2009-03-12 テレックス−デマーク・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト クレーン、特に狭い輪距と拡張された支持ベースとを有する移動式クレーン
US20090107946A1 (en) * 2005-09-28 2009-04-30 Terex-Demag Gmbh & Co. Kg Crane, In Particular Mobile Crane With a Narrow Track and Enlarged Supporting Base
US20100320166A1 (en) * 2005-09-28 2010-12-23 Terex-Demag Gmbh Crane, in particular mobile crane with a narrow track and enlarged supporting base
US8225947B2 (en) 2005-09-28 2012-07-24 Terex Demag Gmbh Crane, in particular mobile crane with a narrow track and enlarged supporting base
US8499945B2 (en) * 2005-09-28 2013-08-06 Terex Cranes Germany Gmbh Crane, in particular mobile crane with a narrow track and enlarged supporting base

Also Published As

Publication number Publication date
NL7409942A (nl) 1975-03-04
GB1413465A (en) 1975-11-12
NL166902B (nl) 1981-05-15
DE2441278B2 (de) 1979-06-21
FR2242322A1 (de) 1975-03-28
SE391170B (sv) 1977-02-07
DE2441278C3 (de) 1980-03-06
DE2441278A1 (de) 1975-03-13
IT1015739B (it) 1977-05-20
FR2242322B1 (de) 1978-11-24
NL166902C (nl) 1981-10-15
SE7409623L (de) 1975-03-03
CA983915A (en) 1976-02-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BANKERS TRUST COMPANY, NEW YORK

Free format text: GRANT OF SECURITY INTEREST;ASSIGNOR:MANITOWOC FOODSERVICE COMPANIES, INC. (FORMERLY MANITOWOC FOODSERVICE GROUP, INC.);REEL/FRAME:012043/0445

Effective date: 20010508