EP0318942A2 - Système de verrouillage - Google Patents

Système de verrouillage Download PDF

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Publication number
EP0318942A2
EP0318942A2 EP88119958A EP88119958A EP0318942A2 EP 0318942 A2 EP0318942 A2 EP 0318942A2 EP 88119958 A EP88119958 A EP 88119958A EP 88119958 A EP88119958 A EP 88119958A EP 0318942 A2 EP0318942 A2 EP 0318942A2
Authority
EP
European Patent Office
Prior art keywords
piston
housing
selectably
lockable connection
locking member
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Withdrawn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
EP88119958A
Other languages
German (de)
English (en)
Other versions
EP0318942A3 (fr
Inventor
Patrick Blaignon Perbet
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.)
BorgWarner Transmission Systems Monaco SAM
Original Assignee
Eaton SAM
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 Eaton SAM filed Critical Eaton SAM
Publication of EP0318942A2 publication Critical patent/EP0318942A2/fr
Publication of EP0318942A3 publication Critical patent/EP0318942A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B13/00—Devices preventing the key or the handle or both from being used
    • E05B13/005—Disconnecting the handle
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/28—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for preventing unauthorised access to the controlling member or its movement to a command position
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B53/00—Operation or control of locks by mechanical transmissions, e.g. from a distance
    • E05B53/003—Operation or control of locks by mechanical transmissions, e.g. from a distance flexible
    • E05B53/005—Bowden
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/16—Locks for luggage compartments, car boot lids or car bonnets

Definitions

  • the present invention relates to a system or method for selecting locked or unlocked condition between two bodies, eg using a a pneumatic and/or reduced pressure source, without undue complication or bulk.
  • the two bodies are pistons with oppositely directed rods, one piston sliding inside the other which in turn slides in a housing, the axes of sliding being parallel or concident, one rod of the two being the conditionally locked axially directed output, whereby the other can then be designed as an axially directed manual or other control input
  • the inner piston having an intermediate region of reduced cross-section, such as a recess or waist, for receiving a transversely, preferably radially, withdrawable locking finger
  • the outer piston having a cooperating transverse through-hole for passage of the locking finger, means outside the housing such as a transverse extension of said piston housing providing control for transverse driving of the finger, wherein this means may be such that said finger is transversely driven through a coupling rigid or firm in the transverse direction by means of a lateral flexible diaphragm exposed to a fluid inlet (for connection to a fluid over- or under-pressure source), flexing of the diaphragm providing said transverse driving of the finger; and where
  • the transverse coupling may be radial by means of a J-shaped bracket eg with two 90° bends, the short leg being connected to the diaphragm and the long leg being slotted eg forked to engage the locking finger.
  • the inner piston may have an intermediate length of reduced cross-section to conditionally receive the locking finger for said union of the two pistons. Minimum space is occupied by the internally sliding parts, ie the inner piston and the locking finger.
  • a housing 1 guides slidably in a bore 1A within it, an outer piston 2, which in turn guides slidably in a bore 2A within it, an inner piston 3.
  • the sliding of the pistons is in the same direction, e.g. axial.
  • a locking arrangement when in a "locked” condition, ensures that the two pistons slide together in the bore 1A, and when in an “unlocked” condition, allows not only this sliding together but also relative axial movement between the two pistons 2, 3.
  • a piston rod 4 extends from one piston, eg the inner piston 3 slidably through the housing 1 at a bearing 5, to a manually accessible side A.
  • the other piston rod eg the outer piston a transverse e.g. radial through-hole 7A of 2
  • a locking finger 7 extends sliding within a transverse e.g. radial through-hole 7A of outer piston 2 between locking and unlocking detent positions determined by at least one spring loaded ball 8 biased axially towards the finger generally within the outer piston.
  • the ball seats on locking or unlocking rest positions determined by the respective annular grooves 9 or 10 in the finger according to whether finger 7 is in its inner locked position ( Figure 1 or 2) or in its outer unlocked position ( Figures 3 or 4).
  • the finger In its locked position, the finger has engaged a space 11 provided by a reduced diameter portion 12 or other shaping of the inner piston 3.
  • the inner piston can only be thus locked when fully home, rightwards as viewed, in the outer piston.
  • a coil spring 13 acting against an end or lid piece 14 tends to maintain both pistons fully rightward, and hence tends to hold the finger engaging space 11 opposite the finger 7 even when the latter is in its unlocked position.
  • the lid may close the housing, support the spring and provide the bearing 5.
  • Space 11 need not be annular, but can be e.g. just a recess in one circumferential position of inner piston 3.
  • Housing 1 has a radial extension 15, at one circumferential region, shown upward in Figures 1-4, which is closed by a diaphragm 16 peripherally held by a robust cover 17 by bolts 18 or snap fittings in such manner as to hold a fluid working space 19 on the non-housing side of the diaphragm.
  • Space 19 is fed through a conduit 19A from the outside by a fluid source P of "low pressure” or “vacuum", or usually both may be needed alternately.
  • the diaphragm has central stiffening washers 20 and 21 pierced sealingly by a rivet 22 which communicates the axial movements of the diaphragm to a stiff J-shaped bracket 23.
  • Bracket 23 has bifurcated ends 24 (not visible as bifurcation) defining a slot in which a thinner neck portion25 of the locking finger 7 fits slidably parallel to the axis of housing 1, ie to the direction of movement of shaft 4.
  • the finger is thus constrained to move up and down (as viewed) with the diaphragm but can move leftward whenever outer cylinder 2 does.
  • low pressure is meant a small excess pressure over atmospheric (eg + 0.8 bars).
  • vacuum is meant a small amount of depression, such as -0.8 bars, below atmospheric.
  • the diaphragm 16 may be self-biased or otherwise biased normally up or normally down by a return spring, or it may be bistable and have to be moved upwardly by vacuum (eg -0.8 bars) and downwardly by low pressure (eg about +0.8 bars).
  • vacuum eg -0.8 bars
  • low pressure eg about +0.8 bars
  • One or more internal projections 25 prevent the diaphragm closing the conduit to P.
  • the finger moves radially, but it could move transversely, e.g. along a chord.
  • the housing and pistons need not be round or cylindrical as preferred, but could have any elongated shape.
  • the sliding axes need not be coincident with each other, or with those of the housing or rods, although coincident axes are usually more convenient.
  • the finger 7 will (unless biased downwardly) stay in its unlocking, upward position in stable equilibrium even after the reduced pressure has ceased.
  • the finger must then be positively driven downward by a fluid high pressure source, when it is needed to re-lock the pistons together. In any case it should be arranged that the pressure or depression is cut off or cancelled, or otherwise should cease to be supplied, when finger 7 has been driven to its required positon.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Actuator (AREA)
EP88119958A 1987-12-02 1988-11-30 Système de verrouillage Withdrawn EP0318942A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8728133 1987-12-02
GB8728133A GB8728133D0 (en) 1987-12-02 1987-12-02 Locking system

Publications (2)

Publication Number Publication Date
EP0318942A2 true EP0318942A2 (fr) 1989-06-07
EP0318942A3 EP0318942A3 (fr) 1990-01-10

Family

ID=10627839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119958A Withdrawn EP0318942A3 (fr) 1987-12-02 1988-11-30 Système de verrouillage

Country Status (2)

Country Link
EP (1) EP0318942A3 (fr)
GB (1) GB8728133D0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2719923A1 (fr) * 1994-05-11 1995-11-17 Guy Ferrand Dispositif de sécurité permettant d'annihiler l'effet d'une commande agissant par traction mécanique.
FR2810754A1 (fr) 2000-06-22 2001-12-28 Guy Ferrand Dispositif de securite annulant l'effet de traction mecanique lineaire, par rupture en un point de la ligne de traction, par un principe de repulsion de champ magnetique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142319A2 (fr) * 1983-11-10 1985-05-22 Capital Marketing Limited Systèmes de verrouillage de portes de voitures automobiles
DE8334889U1 (de) * 1983-12-06 1985-07-04 Neiman GmbH, 5657 Haan Kraftfahrzeug-Schließeinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142319A2 (fr) * 1983-11-10 1985-05-22 Capital Marketing Limited Systèmes de verrouillage de portes de voitures automobiles
DE8334889U1 (de) * 1983-12-06 1985-07-04 Neiman GmbH, 5657 Haan Kraftfahrzeug-Schließeinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2719923A1 (fr) * 1994-05-11 1995-11-17 Guy Ferrand Dispositif de sécurité permettant d'annihiler l'effet d'une commande agissant par traction mécanique.
WO1995031763A1 (fr) * 1994-05-11 1995-11-23 Guy Ferrand Dispositif de securite permettant d'annihiler l'effet d'une commande agissant par traction mecanique
FR2810754A1 (fr) 2000-06-22 2001-12-28 Guy Ferrand Dispositif de securite annulant l'effet de traction mecanique lineaire, par rupture en un point de la ligne de traction, par un principe de repulsion de champ magnetique

Also Published As

Publication number Publication date
GB8728133D0 (en) 1988-01-06
EP0318942A3 (fr) 1990-01-10

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