CA2170940A1 - Screw Jack - Google Patents

Screw Jack

Info

Publication number
CA2170940A1
CA2170940A1 CA2170940A CA2170940A CA2170940A1 CA 2170940 A1 CA2170940 A1 CA 2170940A1 CA 2170940 A CA2170940 A CA 2170940A CA 2170940 A CA2170940 A CA 2170940A CA 2170940 A1 CA2170940 A1 CA 2170940A1
Authority
CA
Canada
Prior art keywords
bevel gear
bed
case body
large bevel
outer sleeve
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.)
Granted
Application number
CA2170940A
Other languages
French (fr)
Other versions
CA2170940C (en
Inventor
Yasuji Kawasaki
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.)
KAWASAKI INDUSTRIAL Co Ltd
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
Publication of CA2170940A1 publication Critical patent/CA2170940A1/en
Application granted granted Critical
Publication of CA2170940C publication Critical patent/CA2170940C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Transmission Devices (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

A screw jack comprising a bed, a case body having a groove formed therein and mounted on an upper surface of the bed, and a thrust bearing mounted on a central area of the upper surface of the bed. A large bevel gear is placed on the bed through the thrust bearing such that a main threaded shaft of the large bevel gear is secured at a lower end thereof to the thrust bearing and erected upwardly therefrom. A small bevel gear carried on the case body through a bearing meshes with the large bevel gear. An outer sleeve is guided along the groove of the case body. A heavy object raising inner sleeve is disposed within the outer sleeve and is guided by the outer sleeve. The main threaded shaft is rotated through the large bevel gear by the small bevel gear which is rotated by an external driver so that a heavy object is raised. The case body is integrally formed of aluminum casting or hard resin.
CA002170940A 1995-03-16 1996-03-04 Screw jack Expired - Lifetime CA2170940C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1989/1995 1995-03-16
JP1995001989U JP3019266U (en) 1995-03-16 1995-03-16 Screw jack

Publications (2)

Publication Number Publication Date
CA2170940A1 true CA2170940A1 (en) 1996-09-17
CA2170940C CA2170940C (en) 1999-08-17

Family

ID=11516899

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002170940A Expired - Lifetime CA2170940C (en) 1995-03-16 1996-03-04 Screw jack

Country Status (6)

Country Link
JP (1) JP3019266U (en)
AU (1) AU678742B2 (en)
CA (1) CA2170940C (en)
DE (1) DE19609905C2 (en)
GB (1) GB2298848B (en)
ZA (1) ZA961777B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001206677A (en) * 2000-01-26 2001-07-31 Kawasaki Kogyo Kk Screw jack
US8678471B2 (en) 2007-01-19 2014-03-25 Rieco-Titan Products, Inc. In-line jack
PL414876A1 (en) * 2015-11-23 2017-06-05 Isps Spółka Z Ograniczoną Odpowiedzialnością A lift for lifting and supporting, preferably heavy structural elements
CN108900607B (en) * 2018-06-28 2021-06-29 郑州云海信息技术有限公司 SMB protocol request processing method and device and server

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB307859A (en) * 1927-12-15 1929-03-15 Arthur Ernest Lake Improvements in or relating to lifting-jacks
GB372871A (en) * 1931-03-06 1932-05-19 Arthur Ernest Lake Improvements in or relating to screw lifting jacks
GB388584A (en) * 1931-03-20 1933-03-02 Georges Sizaire Improvements in lifting-jacks for motor vehicles
US2054025A (en) * 1934-10-09 1936-09-08 Bingham Stamping & Tool Compan Lifting jack
US4000880A (en) * 1975-01-27 1977-01-04 Auto Specialties Manufacturing Company Screw jack
DE2920133C2 (en) * 1979-05-18 1981-11-12 Alfred 4072 Wickrath Bautz Lifting device with at least two mutually telescoping threaded spindles
DE3575411D1 (en) * 1985-10-01 1990-02-22 Osaka Jack Co SCREW WINCH.
JPH0643108Y2 (en) * 1990-09-28 1994-11-09 竹内工業株式会社 Screw type jack

Also Published As

Publication number Publication date
CA2170940C (en) 1999-08-17
GB9604394D0 (en) 1996-05-01
DE19609905C2 (en) 2000-07-06
JP3019266U (en) 1995-12-12
DE19609905A1 (en) 1996-09-19
AU4575696A (en) 1996-10-03
GB2298848B (en) 1998-08-26
ZA961777B (en) 1996-12-10
GB2298848A (en) 1996-09-18
AU678742B2 (en) 1997-06-05

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20160304