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1. WO1996006292 - QUICKLY MOVABLE ELASTICALLY ENGAGING SCREW-AND-NUT MECHANISM

Publication Number WO/1996/006292
Publication Date 29.02.1996
International Application No. PCT/CN1995/000068
International Filing Date 18.08.1995
Chapter 2 Demand Filed 14.03.1996
IPC
B23Q 5/40 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
5Driving or feeding mechanisms; Control arrangements therefor
22Feeding members carrying tools or work
34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
38feeding continuously
40by feed shaft, e.g. lead screw
B25B 1/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
1Vices
06Arrangements for positively actuating jaws
10using screws
12with provision for disengagement
F16H 25/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
25Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18for conveying or interconverting oscillating or reciprocating motions
20Screw mechanisms
CPC
B23Q 5/408
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
5Driving or feeding mechanisms; Control arrangements therefor
22Feeding members carrying tools or work
34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
38feeding continuously
40by feed shaft, e.g. lead screw
408Nut bearings therefor
B25B 1/125
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
1Vices
06Arrangements for positively actuating jaws
10using screws
12with provision for disengagement
125with one screw perpendicular to the jaw faces
B66F 3/12
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
FHOISTING, 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
3Devices, e.g. jacks, adapted for uninterrupted lifting of loads
08screw operated
12comprising toggle levers
F16H 25/2025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
25Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18for conveying or interconverting oscillating or reciprocating motions
20Screw mechanisms
2025with means to disengage the nut or screw from their counterpart; Means for connecting screw and nut for stopping reciprocating movement
Y10T 74/19735
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
74Machine element or mechanism
19Gearing
19642Directly cooperating gears
19698Spiral
19702Screw and nut
19735Nut disengageable from screw
Y10T 74/19805
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
74Machine element or mechanism
19Gearing
19642Directly cooperating gears
19698Spiral
19702Screw and nut
19805Less than 360 degrees of contact between nut and screw
Applicants
  • FAN, Chaolai [CN]/[CN]
Inventors
  • FAN, Chaolai
Agents
  • CCPIT PATENT AND TRADEMARK LAW OFFICE
Priority Data
94 1 14934.X18.08.1994CN
94 2 18458.018.08.1994CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) QUICKLY MOVABLE ELASTICALLY ENGAGING SCREW-AND-NUT MECHANISM
(FR) MECANISME A ECROUS ET VIS A PRISE ELASTIQUE ET DEPLACEMENT RAPIDE
Abstract
(EN)
A new type of screw-and-nut mechanism comprises a supporting seat, one or more semi-nuts and the actuating means thereof, characterized in that the engagement of internal thread on the semi-nut with external thread on the screw is started elastically, then completed and locked by a positive element, and that the disengagement thereafter of the related elements is accomplished positively. Such a mechanism can be used in various kinds of jacks, vices, sliding tables of machine tools, as well as other devices which is driven by a screw and desired to pass through its return travel quickly.
(FR)
L'invention concerne un nouveau type de mécanisme à écrous et vis comprenant un siège de support, un ou plusieurs demi-écrous et leurs moyens d'actionnement, qui se caractérise en ce que la prise du filet interne du demi-écrou avec le filet externe de la vis s'effectue de manière élastique, le verrouillage étant assuré directement par un élément actif, et en ce que la libération des éléments concernés est assurée de manière directe. Ce mécanisme peut être utilisé dans divers types de vérins, d'étaux, de tables coulissantes de machines outils, ainsi que d'autres dispositifs qui doivent revenir rapidement dans leur position initiale.
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