CA1114789A - Retractable boarding ladder - Google Patents

Retractable boarding ladder

Info

Publication number
CA1114789A
CA1114789A CA352,781A CA352781A CA1114789A CA 1114789 A CA1114789 A CA 1114789A CA 352781 A CA352781 A CA 352781A CA 1114789 A CA1114789 A CA 1114789A
Authority
CA
Canada
Prior art keywords
ladder
cable
stairway
vertical
stringers
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
CA352,781A
Other languages
English (en)
French (fr)
Inventor
John F. Holz
Dexter Pratt, Jr.
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.)
Harnischfeger Technologies Inc
Original Assignee
Harnischfeger Corp
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 Harnischfeger Corp filed Critical Harnischfeger Corp
Application granted granted Critical
Publication of CA1114789A publication Critical patent/CA1114789A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
    • B60R3/02—Retractable steps or ladders, e.g. movable under shock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
CA352,781A 1979-06-28 1980-05-27 Retractable boarding ladder Expired CA1114789A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/052,800 US4243120A (en) 1979-06-28 1979-06-28 Retractable boarding ladder
US052,800 1987-05-21

Publications (1)

Publication Number Publication Date
CA1114789A true CA1114789A (en) 1981-12-22

Family

ID=21979975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA352,781A Expired CA1114789A (en) 1979-06-28 1980-05-27 Retractable boarding ladder

Country Status (8)

Country Link
US (1) US4243120A (enExample)
JP (1) JPS568730A (enExample)
AU (1) AU526784B2 (enExample)
BR (1) BR8003927A (enExample)
CA (1) CA1114789A (enExample)
DE (1) DE3023179A1 (enExample)
MX (1) MX152663A (enExample)
ZA (1) ZA803472B (enExample)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604649U (ja) * 1983-06-21 1985-01-14 株式会社小松製作所 車両の昇降装置
DE8716990U1 (de) * 1987-12-24 1988-02-11 Iveco Magirus AG, 7900 Ulm Fahrzeug mit innerer Aufstiegshilfe
US5064022A (en) * 1989-05-30 1991-11-12 Marrowbone Development Company Ladder apparatus and method for large mobile equipment
FR2660607A1 (fr) * 1990-04-05 1991-10-11 Mecalac Engins de travaux publics comportant des moyens d'acces perfectionnes.
US5033582A (en) * 1990-08-20 1991-07-23 Caterpillar Inc. Retractable ladder assembly
US5339919A (en) * 1993-02-05 1994-08-23 Harnischfeger Corporation Boarding ladder assembly having a variable counterweight lifting force
US5518357A (en) * 1994-07-13 1996-05-21 Theodore Ziaylek, Jr. Retaining and retrieval apparatus for storage of a ladder upon a vehicle shelf area
US6209682B1 (en) 2000-02-11 2001-04-03 Caterpillar Inc. Ladder assembly for track-type tractors
US6378654B1 (en) 2000-07-18 2002-04-30 Theodore Ziaylek, Jr. Ladder pivotally attached to a generally vertically extending surface
US6827541B1 (en) 2003-04-15 2004-12-07 Michael Paul Ziaylek Apparatus for holding elongated objects horizontally adjacent to a vehicular body which is movable between an upper storage position and a lower access position
US6983823B1 (en) 2003-05-12 2006-01-10 Zumbrunnen Peggy A Boarding ladder and slide system
US20060272896A1 (en) * 2005-06-03 2006-12-07 Rajewski David E Mobile roof loading system
WO2006133513A1 (en) * 2005-06-16 2006-12-21 Barjoh Pty Ltd Vehicle access system
EP1954529B1 (en) * 2005-12-02 2010-05-05 Barjoh PTY Ltd. Access device
FR2904340B1 (fr) * 2006-07-28 2008-09-19 Reparation Soudure Travaux Pub Dispositif d'acces a la cabine d'un engin de travaux publics
US8011474B2 (en) * 2006-10-30 2011-09-06 Caterpillar Inc. Powered access device
US20090038886A1 (en) * 2007-08-06 2009-02-12 Bastin Bruce G Ladder assembly formed from integral material blank
US20090145692A1 (en) * 2007-12-10 2009-06-11 Wayne Flickinger Novel rear deck service ladder for combines
CA2718809C (en) * 2008-03-17 2016-12-20 Barjoh Pty Ltd Access system and device for vehicles, and modes of employment thereof
AU2009339917A1 (en) * 2009-02-16 2011-09-01 Tefol Pty Ltd A ladder deployment system
AU2010202068B2 (en) * 2009-05-26 2016-07-28 Danteng Pty Ltd Access Ladder for Vehicles
EP2661169B1 (en) * 2011-01-03 2016-07-27 Oxbo International Corporation Self-propelled merger
US8833783B2 (en) * 2012-06-28 2014-09-16 Sno-Way International, Inc. Cam track operable side step
DE102014003155A1 (de) * 2014-03-03 2015-09-03 Liebherr-Mining Equipment Colmar Sas Arbeitsmaschine, insbesondere Muldenkipper oder Truck
DE102014003469B4 (de) * 2014-03-07 2023-04-13 Komatsu Mining Germany Gmbh Notabstiegsystem für Großmaschinen
US9555743B2 (en) * 2015-05-22 2017-01-31 Roy A. Schut Driver lift device
US9862324B2 (en) * 2015-05-22 2018-01-09 Roy A. Schut Driver lift device
US9816318B2 (en) 2015-12-11 2017-11-14 David A. Johnson Powered ladder for large industrial vehicles
WO2019171479A1 (ja) * 2018-03-06 2019-09-12 住友重機械建機クレーン株式会社 クレーン
BE1031913B1 (nl) * 2023-08-21 2025-03-26 Hyler BV Laddersysteem en daarvan voorziene landbouwmachine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2101659A (en) * 1936-08-26 1937-12-07 Vale Baldwin Fire escape
US2794583A (en) * 1952-08-02 1957-06-04 Ohio Commw Eng Co Press ladder construction
US2860822A (en) * 1956-09-19 1958-11-18 Calvin A Rising Retractable ladder
US3869022A (en) * 1974-06-13 1975-03-04 Caterpillar Tractor Co Telescoping step ladder

Also Published As

Publication number Publication date
DE3023179A1 (de) 1981-01-29
AU5926580A (en) 1981-01-08
BR8003927A (pt) 1981-01-13
US4243120A (en) 1981-01-06
ZA803472B (en) 1981-06-24
DE3023179C2 (enExample) 1989-07-06
MX152663A (es) 1985-10-07
JPS568730A (en) 1981-01-29
AU526784B2 (en) 1983-01-27

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Legal Events

Date Code Title Description
MKEX Expiry