EP0727002B1 - Snap lock - Google Patents

Snap lock Download PDF

Info

Publication number
EP0727002B1
EP0727002B1 EP93917580A EP93917580A EP0727002B1 EP 0727002 B1 EP0727002 B1 EP 0727002B1 EP 93917580 A EP93917580 A EP 93917580A EP 93917580 A EP93917580 A EP 93917580A EP 0727002 B1 EP0727002 B1 EP 0727002B1
Authority
EP
European Patent Office
Prior art keywords
latch
hinge
snap lock
base member
hinged
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 - Lifetime
Application number
EP93917580A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0727002A1 (en
Inventor
Elgaard Schandorff Nielsen
Jens Troels Plesner Kristensen
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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 VKR Holding AS filed Critical VKR Holding AS
Publication of EP0727002A1 publication Critical patent/EP0727002A1/en
Application granted granted Critical
Publication of EP0727002B1 publication Critical patent/EP0727002B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0053—Other details of locks; Parts for engagement by bolts of fastening devices means providing a stable, i.e. indexed, position of lock parts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0086—Toggle levers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/0042—For refrigerators or cold rooms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/162—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away of the plane of the wing or frame

Definitions

  • the invention relates to a snap lock, in particular for closing a window, a door or the like, comprising a base member, a latch having a projecting part for engagement with a striking plate and adapted to be displaced from a closing position against a spring power and an actuator device for taking the latch into a retracted opening position, wherein the latch is also pivotal in relation to the base member about an axis transverse to the direction of said displacement, the latch is rotated around said axis to be moved from the closing position to the opening position, and a resilient member is arranged to retain the latch in a position parallel to the closing position, and wherein the base member, the latch and the actuator device constitute elements in a four-linked mechanism the components of which are hinged to each other substantially with mutually parallel hinge axes.
  • Such a snap lock is known from DE-B-1,021,750 dealing with a lock for a refrigerator door in which the latch and the base member are neighbouring components in the four-link mechanism.
  • DE-GM-71 28 377.7 relates to a snap lock by the use of which it is possible to close for instance a window by slamming, thereby locking the window, i.e. the snap lock must be released actively before reopening the window.
  • the object of the invention is to provide a snap lock which makes it possible to close for instance a window actively against a sealing pressure.
  • a further object is to provide a snap lock which may be inactivated so that the window will not be locked by being banged.
  • a snap lock of the above mentioned type which is characterized in that the latch and the base member constitute opposite members in the four-link mechanism, the latch being hinged by means of a first hinge at the end comprising the projecting part to a link which again by means of a second hinge is hinged to the base member, the latch being hinged at its other end by means of a third hinge to the actuator device which again by means of a fourth hinge is hinged to the base member.
  • the snap lock besides operating as an ordinary snap lock may, on one hand, close a window actively against a sealing pressure by pivoting the latch from the outwards pivoted opening position to the closing position, in that the resilient member prevents the snap lock from being disengaged unintentionally and, on the other hand, be inactivated so that the window or the door may be closed without being locked.
  • the third hinge includes a hinge pin which is journalled in a slot provided either in the latch or in the actuator device, said slot extending in the direction of said displacement when the latch is in the closing position.
  • the slot ensures the possibility of displacing the latch.
  • the four-link mechanism is dimensioned so that the first, the second and the fourth hinge in a plane perpendicular to the hinge axes form an obtuse angle when the latch is in the closing position and an acute angle when the latch is in the opening position. This provides for obtaining that the latch by said displacement is substantially displaced as to parallel.
  • the snap lock has a stop adapted so that the third, the first and the second hinge in a plane perpendicular to the hinge axes form an obtuse angle less than 180° when the latch is in the opening position. This provides for obtaining that the snap lock is not self-locking in the opening position.
  • the latch is, moreover, in an embodiment substantially designed as an L, in which the first hinge is arranged at the bend of the L, and the third hinge is disposed at the end of the long leg of the L, the short leg of the L extends away from the base member and has at its remote end an abutment face for engagement with the striking plate when the latch is in the closing position, and the intended point of attack of the abutment face, the first and the second hinge in a plane perpendicular to the hinge axes form an obtuse angle that is concave in comparison with the remainder of the four-link mechanism, and the intended direction of attack in the point of attack corresponds substantially to the direction from the point of attack towards the first hinge when the latch is in the closing position. This provides for obtaining that the snap lock is self-locking in the closing position.
  • the base member has an abutment face for mounting and an external delimitation close to the second hinge
  • the link has in relation to the four-link mechanism an external surface which when the latch is in the closing position extends from said external delimitation of the base member substantially perpendicular to its abutment face and through a bending away from the remainder of the four-link mechanism to a point in the vicinity of the first hinge.
  • Said external surface thereby constitutes an abutment face for the striking plate when a window with the snap lock according to the invention has been banged, whereby the link operates as a lever and forces the latch backwards against the spring power, said bending ensuring that the lever of the link from the second hinge to the point of attack of the striking plate attains a sufficient size to ensure a reliable effect.
  • the resilient member actuates preferably the actuator device in the direction away from the opening position in order to be capable of keeping the latch in the non-turned-out position.
  • the snap lock includes a second resilient member to retain the latch in the opening position, whereby the link may comprise a cam which when the latch is in the opening position cooperates with the second resilient member to retain the latch in the opening position.
  • Fig. 2 the snap lock is shown alone whereas in Fig. 1 it is shown mounted in a window frame 1 which by means of a seal 2 is sealed against a sill 3.
  • a Striking plate 4 for engagement with the snap lock is mounted on the sill 3.
  • the snap lock proper accommodates a latch 5 with a roll 6 pivotally mounted about an axis perpendicular to the plane of the drawing.
  • the latch 5 is by means of a first hinge pin 7 hinged to a link 8 which again by means of a second hinge pin 9 is hinged to a base member 10.
  • the latch 5 is further by means of a third hinge pin 11 hinged to an actuator device 12 that is again hinged by means of a fourth hinge pin 13 to the base member 10.
  • said base member Towards the window frame 1 said base member has an abutment face 14 from which a pair of hollow legs 15 extends into which screws may be screwed when mounting the snap lock on the window frame 1.
  • the actuator device 12 is provided with a handle in the form of a sectional bar extending in a direction perpendicular to the plane of the drawing.
  • the actuator device 12 is further provided with a slot 17 in which a third hinge pin is journalled.
  • the hinge pin 11 is by a pressure spring 18 kept in engagement with the left side of the slot 17, shown in Fig. 1.
  • the actuator device 12 is biassed counterclockwise by means of a helical spring 19, shown in Figs 1 and 3.
  • the window frame passes across the striking plate 4 and so does part of the link 8.
  • This link has a face 20 which after bending inclines in relation to a plane perpendicular to the plane of the window frame 1, in the direction towards the striking plate 4 which has a corresponding inclined face 21.
  • the inclined part of the face 20 hits the inclined face 21 and is pressed away from the striking plate 4, whereby the link 8 operates as a lever and through the first hinge pin 7 presses the latch 5 away from the striking plate 4.
  • the link 8 operates as a lever and through the first hinge pin 7 presses the latch 5 away from the striking plate 4.
  • the third hinge pin 11 moves in the slot 17 against the power from the pressure spring 18.
  • the latch 5 When opening the window the latch 5 is set in an opening position by pivoting the actuator device 12 clockwise by means of the handle 16 about the fourth hinge pin 13, illustrated in Figs 1 and 3.
  • the snap lock then occupies the opening position, shown in Fig. 3, which is delimited by the fact that the link 8 strikes a stop 23.
  • the actuator device 12 By influencing the actuator device 12 counterclockwise the helical spring attempts to guide the snap lock back to the position shown in Fig. 1, but the helical spring 19 is not strong enough to overcome the engagement between a resilient tongue 24 on the base member 10 and a cam 25 of the link 8 and, therefore, the snap lock may remain in the opening position shown in Fig. 3.
  • a person can, however, bring the snap lock back into the closing position shown in Fig. 1.
  • the centre of roll 6 will then substantially follow the path 26 shown in dashed lines and it will be seen that the snap lock is in a position to close the window actively, thereby creating a sealing pressure against the seal 2.
  • the axis of the first hinge pin 7 is in Fig. 1 located to the left of the connecting line between the axis of the roll 6 and the axis of the second hinge pin 9. This ensures that the snap lock is self-locking in the closing position. It appears, moreover, that the axes of the first, the third and the fourth hinge pin in the closing position shown in Fig. 1 are substantially aligned.
  • the snap lock operates as an ordinary snap lock by banging the window frame 1
  • the axis of the third hinge pin will be positioned above the connecting line between the first and the fourth hinge pin and a moment therefore occurs attempting to pivot the actuator device 12 clockwise, thereby opening the snap lock.
  • the helical spring 19 prevents this pivotal movement the strength of said spring being appropriately adapted to the strength of the pressure spring 18.
  • the stop 23 is designed so as to ensure that the axis of the first hinge pin 7, as illustrated in Fig. 3, is always located above the connecting line between the second hinge pin 9 and the third hinge pin 11. It is thus ensured that the snap lock does not lock itself in the opening position whereas it may always be manually brought back to the closing position.

Landscapes

  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Finger-Pressure Massage (AREA)
  • Closures For Containers (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Hinges (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Materials For Medical Uses (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Prostheses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Endoscopes (AREA)
  • Mechanical Operated Clutches (AREA)
  • Window Of Vehicle (AREA)
EP93917580A 1992-08-20 1993-08-18 Snap lock Expired - Lifetime EP0727002B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK1038/92 1992-08-20
DK103892A DK168406B1 (da) 1992-08-20 1992-08-20 Snaplås
PCT/DK1993/000270 WO1994004782A1 (en) 1992-08-20 1993-08-18 Snap lock

Publications (2)

Publication Number Publication Date
EP0727002A1 EP0727002A1 (en) 1996-08-21
EP0727002B1 true EP0727002B1 (en) 1997-11-12

Family

ID=8100303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93917580A Expired - Lifetime EP0727002B1 (en) 1992-08-20 1993-08-18 Snap lock

Country Status (13)

Country Link
EP (1) EP0727002B1 (pl)
AT (1) ATE160203T1 (pl)
AU (1) AU4699493A (pl)
CZ (1) CZ281987B6 (pl)
DE (1) DE69315230T2 (pl)
DK (1) DK168406B1 (pl)
ES (1) ES2110108T3 (pl)
HU (1) HU216959B (pl)
PL (1) PL172639B1 (pl)
RU (1) RU2103464C1 (pl)
SK (1) SK279773B6 (pl)
UA (1) UA25836C2 (pl)
WO (1) WO1994004782A1 (pl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106869758A (zh) * 2017-03-06 2017-06-20 吴端龙 一种具有报警器的卷闸门窗地钩锁
CN106948743A (zh) * 2017-03-06 2017-07-14 吴端龙 一种卷闸门防盗地钩锁

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5792049A (en) * 1996-01-17 1998-08-11 Spectrx, Inc. Spectroscopic system with disposable calibration device
DE202004020666U1 (de) * 2003-01-14 2005-10-13 Vkr Holding A/S Verschlussanordnung
EP1746232B1 (en) 2005-07-22 2008-06-18 VKR Holding A/S Window securing means and methods
PL1746233T3 (pl) 2005-07-22 2008-12-31 Vkr Holding As Środki i sposoby mocowania okien
ES2602588T3 (es) 2009-06-29 2017-02-21 Vkr Holding A/S Montaje de cerradura de resorte
DK178179B1 (en) 2013-05-02 2015-07-27 Vkr Holding As An operating and locking assembly, and a method of providing a condition of use of a window with such an operating and locking assembly
EP3063356B1 (en) 2013-10-30 2017-12-06 VKR Holding A/S An operating and ventilation assembly, and a window comprising a frame, a sash and such an operating and ventilation assembly
DK178238B1 (en) 2014-03-03 2015-09-21 Vkr Holding As A ventilation and operating assembly having a locking device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2144737A (en) * 1935-01-03 1939-01-24 Apex Electrical Mfg Co Door latch
US2893772A (en) * 1954-09-23 1959-07-07 Chester P Edwards Lock for refrigerator doors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106869758A (zh) * 2017-03-06 2017-06-20 吴端龙 一种具有报警器的卷闸门窗地钩锁
CN106948743A (zh) * 2017-03-06 2017-07-14 吴端龙 一种卷闸门防盗地钩锁

Also Published As

Publication number Publication date
HUT72388A (en) 1996-04-29
SK279773B6 (sk) 1999-03-12
PL172639B1 (pl) 1997-10-31
PL307504A1 (en) 1995-05-29
WO1994004782A1 (en) 1994-03-03
RU95106646A (ru) 1996-11-20
DK168406B1 (da) 1994-03-21
EP0727002A1 (en) 1996-08-21
RU2103464C1 (ru) 1998-01-27
HU9403593D0 (en) 1995-02-28
UA25836C2 (uk) 1999-02-26
CZ42095A3 (en) 1995-09-13
AU4699493A (en) 1994-03-15
ATE160203T1 (de) 1997-11-15
DE69315230T2 (de) 1998-05-20
SK21695A3 (en) 1995-07-11
CZ281987B6 (cs) 1997-04-16
DK103892D0 (da) 1992-08-20
DK103892A (da) 1994-02-21
HU216959B (hu) 1999-10-28
ES2110108T3 (es) 1998-02-01
DE69315230D1 (de) 1997-12-18

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