FR2432657A1 - Self-propelled screw jack - uses ball mounted screw on fixed threaded shaft being set in wheel engaged by driven worm - Google Patents

Self-propelled screw jack - uses ball mounted screw on fixed threaded shaft being set in wheel engaged by driven worm

Info

Publication number
FR2432657A1
FR2432657A1 FR7816455A FR7816455A FR2432657A1 FR 2432657 A1 FR2432657 A1 FR 2432657A1 FR 7816455 A FR7816455 A FR 7816455A FR 7816455 A FR7816455 A FR 7816455A FR 2432657 A1 FR2432657 A1 FR 2432657A1
Authority
FR
France
Prior art keywords
screw
shaft
self
propelled
threaded shaft
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.)
Withdrawn
Application number
FR7816455A
Other languages
French (fr)
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 FR7816455A priority Critical patent/FR2432657A1/en
Publication of FR2432657A1 publication Critical patent/FR2432657A1/en
Withdrawn legal-status Critical Current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
    • B66F3/18—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through worm gearings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
    • E05F15/673—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by screw-and-nut mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

Utilising a ball-mounted screw traversing a fixed threaded shaft, the self-propelled screw jack is designed to move relatively heavy loads, the drive being transmitted from a motor output shaft by a worm and wheel mechanism. The motor, the transmission and the screw are incorporated in an integrated moving assembly, the wheel housing the screw in a fixed co-axial relationship, and the shaft being fixed between two terminal points. Roller bearing assemblies may be located at each end of the screw to provide for its axial guidage along the shaft, their internal dia. being nominally greater than the pitch of the shaft thread. An application may be the support of a retractable T.V. receiver with an ascent rate exceeding that of descent, and the shaft may be pre-tensioned to reduce the likelihood of buckling.
FR7816455A 1978-06-01 1978-06-01 Self-propelled screw jack - uses ball mounted screw on fixed threaded shaft being set in wheel engaged by driven worm Withdrawn FR2432657A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7816455A FR2432657A1 (en) 1978-06-01 1978-06-01 Self-propelled screw jack - uses ball mounted screw on fixed threaded shaft being set in wheel engaged by driven worm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7816455A FR2432657A1 (en) 1978-06-01 1978-06-01 Self-propelled screw jack - uses ball mounted screw on fixed threaded shaft being set in wheel engaged by driven worm

Publications (1)

Publication Number Publication Date
FR2432657A1 true FR2432657A1 (en) 1980-02-29

Family

ID=9208969

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816455A Withdrawn FR2432657A1 (en) 1978-06-01 1978-06-01 Self-propelled screw jack - uses ball mounted screw on fixed threaded shaft being set in wheel engaged by driven worm

Country Status (1)

Country Link
FR (1) FR2432657A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1495109A (en) * 1966-07-11 1967-09-15 Rotax Ltd Screw and nut mechanism
US3367201A (en) * 1965-07-12 1968-02-06 Orner Harry Ball bearing screw and nut mechanism
DE2137427A1 (en) * 1970-07-30 1972-02-17 Torrington Co Feed device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367201A (en) * 1965-07-12 1968-02-06 Orner Harry Ball bearing screw and nut mechanism
FR1495109A (en) * 1966-07-11 1967-09-15 Rotax Ltd Screw and nut mechanism
DE2137427A1 (en) * 1970-07-30 1972-02-17 Torrington Co Feed device

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Legal Events

Date Code Title Description
ST Notification of lapse