EP1176273A2 - Schliessvorrichtung - Google Patents

Schliessvorrichtung Download PDF

Info

Publication number
EP1176273A2
EP1176273A2 EP01305984A EP01305984A EP1176273A2 EP 1176273 A2 EP1176273 A2 EP 1176273A2 EP 01305984 A EP01305984 A EP 01305984A EP 01305984 A EP01305984 A EP 01305984A EP 1176273 A2 EP1176273 A2 EP 1176273A2
Authority
EP
European Patent Office
Prior art keywords
latch
latch bolt
power actuator
pawl
arrangement
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
EP01305984A
Other languages
English (en)
French (fr)
Other versions
EP1176273B1 (de
EP1176273A3 (de
Inventor
Kalsi Gurbinder
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.)
Meritor Technology LLC
Original Assignee
ArvinMeritor Light Vehicle Systems UK Ltd
Meritor Light Vehicle Systems UK Ltd
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 ArvinMeritor Light Vehicle Systems UK Ltd, Meritor Light Vehicle Systems UK Ltd filed Critical ArvinMeritor Light Vehicle Systems UK Ltd
Publication of EP1176273A2 publication Critical patent/EP1176273A2/de
Publication of EP1176273A3 publication Critical patent/EP1176273A3/de
Application granted granted Critical
Publication of EP1176273B1 publication Critical patent/EP1176273B1/de
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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means

Definitions

  • the present invention relates to latch arrangements, and in particular latch arrangements associated with doors of vehicles such as automobiles.
  • Known automobile doors include elasometric door seals secured to the periphery of the door which are compressed when the door is closed and the door seals come into contact with the periphery of the door aperture.
  • Modem trends in automobile manufacture require high door seal loads to reduce wind generated noise when the vehicle is moving.
  • the door is held in a closed position by virtue of a rotating claw, mounted on the latch, being in engagement with a striker, typically mounted on fixed structure of the vehicle.
  • the claw is held in its closed position (or in a first safety position) by a pawl engaging a notch on the periphery of the claw.
  • the pawl is disengaged from the claw notch. This then allows unrestrained movement of the claw.
  • the door seals tend to spring the door open relatively fast and in doing so spring open the latch mechanism since the claw is now unrestrained.
  • the time taken to open door under such circumstances is 40-70 milli seconds.
  • the latch mechanism can spring open with increasing force which itself generates noise as the various latch components come to a halt when the latch achieves a fully open condition.
  • An object of the present invention is to provide an improved form of latch arrangement which generates less noise upon opening.
  • Another object of the present invention is to provide a latch arrangement with fewer components.
  • latch arrangement including a latch bolt moveable between at least a closed condition, at which it is capable of retaining a striker in use, and an open condition, at which it is capable of releasing the striker, and a power actuator operable to resist movement of the latch bolt during at least part of an opening movement of the latch bolt.
  • latch arrangement 10 including a latch bolt in the form of a rotating claw 12, a first pawl 14, a first pawl lever 15, a second pawl 16, a second pawl release lever 18, a power actuator 20 (in this case an electric actuator, shown schematically) and a power actuator transmission path 22 (also shown schematically).
  • Transmission path 22 includes a relatively large movement (or gearing) reduction in order to increase the force applied to first arm 42 (at the expense of a reduction in speed).
  • the latch arrangement 10 will be secured to a door.
  • the claw 12 is pivotally mounted at pivot 24 relative to a chassis 26 (only part shown) of the latch arrangement.
  • the claw includes a mouth 28 within which can be releasably retained a striker 30 which is attached to a stationary part of the vehicle such as a B post or a C post.
  • the claw further includes a closed abutment 32, a first safety abutment 34 and a movement abutment 36.
  • Second pawl 16 is pivotable about pivot 38, the axis of which is fixed relative to the chassis 26.
  • Second pawl 16 includes a pawl tooth 40 which is releasably engagable with the closed abutment 32 and first safety abutment 34, dependent upon the position of the components of the latch arrangement.
  • Second pawl release lever 18 is also pivotable about pivot 38 and is operably connected to an inside and an outside door handle (not shown).
  • the first pawl lever 15 is pivotally mounted about pivot 24 and includes a first arm 42 and a second arm 44.
  • Power actuator 20 is connected to first arm 42 via the power actuator transmission path. Operation of the power actuator causes the first pawl lever 15 to rotate in an anticlockwise direction about pivot 24.
  • First pawl 14 is pivotally mounted via pivot 46 on second arm 44.
  • First pawl 14 includes a first pawl tooth 48, which is releasably engagable with the movement abutment 36, and a release lug 50 which is engagable with release pin 52.
  • Release pin 52 is mounted in a fixed position relative to the chassis 26.
  • the latch arrangement is shown in a first safety position whereby the associated door cannot be opened but is nevertheless not in a fully closed position. It should be noted that pawl tooth 40 is engaged with first safety abutment 34 to prevent opening of the claw 12. Furthermore release lug 50 is engaged with release pin 52 which causes the first pawl tooth 48 to disengage from movement abutment 36 of claw 12.
  • Sensors such as microswitches, are able to detect when the latch arrangement has moved from the fully open condition to the first safety condition as shown in figure 1.
  • the control unit 54 (shown schematically) activates the power actuator 20 causing first arm 42 of the first pawl lever (and hence second arm 44 and first pawl 14) to progressively move in an anticlockwise direction through the position shown in figure 2 to the position shown in figure 3.
  • the time taken to move from the position as shown in figure 1 to the position as shown in figure 3 would be 2 seconds. In particular this is due in part to the gear reduction as mentioned above, between power actuator 20 and first arm 42.
  • FIG. 2 shows that the first pawl lever 15 has moved such that release lug 50 has almost disengaged release pin 52. This has allowed first pawl tooth 48 to engage movement abutment 36. Note that in the position shown in figure 2 second pawl tooth 40 is still engagement with first safety abutment 34.
  • first pawl lever 15 causes the claw 12 to rotate to the position as shown in figure 3 since it is driven to this position by co-operation of first pawl tooth 48 and movement abutment 36.
  • the second pawl tooth 40 is positioned opposite closed abutment 32, though not in contact with it since the power actuator is still activated.
  • the control unit 54 deactivates the power actuator 20 and the first pawl lever 15 returns to the position as shown in figure 4 under the action of a return spring (not shown). Note that in figure 4 the first pawl 14 has being caused to rotate clockwise about pivot 46 relative to first pawl lever 15 as a result of engagement between release lug 50 and release pin 52.
  • control unit 54 activates the power actuator with causes the latch arrangement to move from a position as shown in figure 4 to the position as shown in figure 3. Note that the time taken to move between the positions is significantly less than 2 seconds since the motor only has to act against the above mentioned return spring (not shown), and in particular does not have to close the door against the door seal force.
  • control unit 54 progressively reduces the power supply to the power actuator until such time as the power actuator can no longer maintain the door in a closed position against the influence of the door seals and thus the door starts to open. Further reduction in power causes the first pawl lever to rotate to the position as shown in figure 1 whereupon release lug 50 engages release pin 52 hence causing first pawl tooth 48 to disengage movement abutment 36. It should be noted that under these circumstances the inside or outside door handle is still operated and thus second pawl tooth 40 is held clear of the closed abutment 32 and first safety abutment 34. Once the latch arrangement has achieved the position as shown in figure 1, the claw is then free to rotate to its open condition since neither of the pawls are restraining it from opening.
  • the present invention allows progressive opening of the claw 12 and thus prevents the claw opening quickly in an unrestrained manner and causing noise as it hits stops such as elastomeric buffers which define its fully open position.
  • the power actuator 20 can be moved from the position as shown in figure 4 to the position as shown in figure 3 by applying a first polarity to the terminals of the power actuator (as described above with reference to the first embodiment). However, once the mechanism has achieved the position in figure 3, the power actuator can then be reversed polarised in order to open the door. It should be noted that, under the circumstances, even though the power actuator 20 is, from an initial consideration, forcing lever 50 clockwise, and thus apparently opening the door quicker, a deeper consideration of the mechanism shows that, in fact, the power actuator 20 is acting in an "engine braking" mode, and this in fact slows opening of the claw, when compared with unrestrained opening.
  • embodiments of latch arrangements according to the present invention which incorporates power opening of the latch may not require stops such an elasometric buffers and the like operable to reduce impact noise since the latch arrangement opens in a controlled manner such that no or little noise is generated as the various latch components move to their fully open position.

Landscapes

  • Lock And Its Accessories (AREA)
EP20010305984 2000-07-25 2001-07-11 Schliessvorrichtung Expired - Lifetime EP1176273B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0018101A GB0018101D0 (en) 2000-07-25 2000-07-25 Latch arrangement
GB0018101 2000-07-25

Publications (3)

Publication Number Publication Date
EP1176273A2 true EP1176273A2 (de) 2002-01-30
EP1176273A3 EP1176273A3 (de) 2003-08-06
EP1176273B1 EP1176273B1 (de) 2007-01-24

Family

ID=9896211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010305984 Expired - Lifetime EP1176273B1 (de) 2000-07-25 2001-07-11 Schliessvorrichtung

Country Status (3)

Country Link
EP (1) EP1176273B1 (de)
DE (1) DE60126202D1 (de)
GB (1) GB0018101D0 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052599A1 (de) * 2004-10-29 2006-05-04 Bayerische Motoren Werke Ag Schloss an einer Tür oder Klappe, mit einer Öffnungshilfe, insbesondere für Fahrzeugtüren
DE102004054739A1 (de) * 2004-11-12 2006-05-18 Bayerische Motoren Werke Ag Schloss mit motorischer Schliesshilfe, insbesondere für Fahrzeugtüren
DE102007025309A1 (de) * 2007-05-30 2008-12-04 Huf Hülsbeck & Fürst Gmbh & Co. Kg Verschluss für Fahrzeuge
WO2015139678A1 (de) * 2014-03-18 2015-09-24 Kiekert Aktiengesellschaft SCHLIEßVORRICHTUNG FÜR EINE KRAFTFAHRZEUGHAUBE
DE102016002148A1 (de) 2015-02-25 2016-08-25 Magna Closures S.P.A. Motoreinzelschlossanordnung mit motorbetätigter Zuziehhilfe und motorbetätigter Freigabe, die eine Soft-Öffnungsfunktion aufweist
DE102016218299A1 (de) 2015-09-29 2017-03-30 Magna Closures S.P.A. Ein-Motor-Verriegelungsanordnung mit Kraft-Anzug und Kraft-Entriegelung mit einer weichen Öffnungsfunktion
DE102017214021A1 (de) 2016-08-15 2018-02-15 Magna Closures Inc. Fahrzeug-Verriegelungsanordnung mit Verriegelungsmechanismus mit Entlastungsgeräuschreduktion
DE102019107683A1 (de) 2018-03-27 2019-10-02 Magna BOCO GmbH Verschluss-verriegelungsvorrichtung mit verriegelungsmechanismus mit einer doppelklinkenkonfiguration
US10895095B2 (en) 2016-10-06 2021-01-19 Magna Closures S.P.A. Power closure latch assembly with cinch mechanism having ratchet retention function
DE102021113313A1 (de) 2020-06-02 2021-12-02 Magna Closures Inc. Verschlussverriegelungsanordnung, die mit einem einzelratschen-/klinken-verriegelungsmechanismus und einem kraftverriegelungs-freigabemechanismus mit einem zweistufigen getriebezug ausgestattet ist
DE102022111754A1 (de) 2021-05-26 2022-12-01 Magna Closures Inc. Verschluss-verriegelungsanordnung mit einem kraftbetätigten anzug-mechanismus mit einer anzug-klinke
US11525289B2 (en) 2017-07-17 2022-12-13 Magna Closures Inc. Vehicular closure latch assembly with roller-type latch mechanism and cinch mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714992A1 (de) * 1997-03-19 1998-09-24 Bosch Gmbh Robert Kraftfahrzeug-Türschloß o. dgl. mit einem Schließhilfsantrieb
US5938252A (en) * 1996-08-22 1999-08-17 Asmo Co., Ltd. Door member locking/unlocking apparatus
US6050117A (en) * 1995-10-13 2000-04-18 Robert Bosch Gmbh Motor vehicle door lock or the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6050117A (en) * 1995-10-13 2000-04-18 Robert Bosch Gmbh Motor vehicle door lock or the like
US5938252A (en) * 1996-08-22 1999-08-17 Asmo Co., Ltd. Door member locking/unlocking apparatus
DE19714992A1 (de) * 1997-03-19 1998-09-24 Bosch Gmbh Robert Kraftfahrzeug-Türschloß o. dgl. mit einem Schließhilfsantrieb

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052599A1 (de) * 2004-10-29 2006-05-04 Bayerische Motoren Werke Ag Schloss an einer Tür oder Klappe, mit einer Öffnungshilfe, insbesondere für Fahrzeugtüren
DE102004054739A1 (de) * 2004-11-12 2006-05-18 Bayerische Motoren Werke Ag Schloss mit motorischer Schliesshilfe, insbesondere für Fahrzeugtüren
DE102004054739B4 (de) 2004-11-12 2022-12-15 Bayerische Motoren Werke Aktiengesellschaft Schloss mit motorischer Schliesshilfe
DE102007025309A1 (de) * 2007-05-30 2008-12-04 Huf Hülsbeck & Fürst Gmbh & Co. Kg Verschluss für Fahrzeuge
WO2015139678A1 (de) * 2014-03-18 2015-09-24 Kiekert Aktiengesellschaft SCHLIEßVORRICHTUNG FÜR EINE KRAFTFAHRZEUGHAUBE
US10378252B2 (en) 2015-02-25 2019-08-13 Magna Closures S.P.A. Dual motor latch assembly with power cinch and power release having soft opening function
DE102016002148A1 (de) 2015-02-25 2016-08-25 Magna Closures S.P.A. Motoreinzelschlossanordnung mit motorbetätigter Zuziehhilfe und motorbetätigter Freigabe, die eine Soft-Öffnungsfunktion aufweist
DE102016002149A1 (de) 2015-02-25 2016-10-13 Magna Closures S.P.A. Zwei-Motor-Verriegelungsanordnung mit angetriebener Anzug und angetriebener Freigabe mit einer weichen Öffnungsfunktion
US10767397B2 (en) 2015-02-25 2020-09-08 Magna Closures S.P.A. Single motor latch assembly with power cinch and power release having soft opening function
US11162284B2 (en) 2015-09-29 2021-11-02 Magna Closures S.P.A. One motor latch assembly with power cinch and power release having soft opening function
CN107023228B (zh) * 2015-09-29 2019-12-20 麦格纳覆盖件有限公司 带有具备软打开功能的电力释放和电力扣紧的单马达闩锁组件
CN107023228A (zh) * 2015-09-29 2017-08-08 麦格纳覆盖件有限公司 带有具备软打开功能的电力释放和电力扣紧的单马达闩锁组件
DE102016218299A1 (de) 2015-09-29 2017-03-30 Magna Closures S.P.A. Ein-Motor-Verriegelungsanordnung mit Kraft-Anzug und Kraft-Entriegelung mit einer weichen Öffnungsfunktion
US10767396B2 (en) 2016-08-15 2020-09-08 Magna Closures Inc. Vehicular latch assembly with latch mechanism having pop-off sound reduction
DE102017214021A1 (de) 2016-08-15 2018-02-15 Magna Closures Inc. Fahrzeug-Verriegelungsanordnung mit Verriegelungsmechanismus mit Entlastungsgeräuschreduktion
US10895095B2 (en) 2016-10-06 2021-01-19 Magna Closures S.P.A. Power closure latch assembly with cinch mechanism having ratchet retention function
US11525289B2 (en) 2017-07-17 2022-12-13 Magna Closures Inc. Vehicular closure latch assembly with roller-type latch mechanism and cinch mechanism
DE102019107683A1 (de) 2018-03-27 2019-10-02 Magna BOCO GmbH Verschluss-verriegelungsvorrichtung mit verriegelungsmechanismus mit einer doppelklinkenkonfiguration
DE102021113313A1 (de) 2020-06-02 2021-12-02 Magna Closures Inc. Verschlussverriegelungsanordnung, die mit einem einzelratschen-/klinken-verriegelungsmechanismus und einem kraftverriegelungs-freigabemechanismus mit einem zweistufigen getriebezug ausgestattet ist
DE102022111754A1 (de) 2021-05-26 2022-12-01 Magna Closures Inc. Verschluss-verriegelungsanordnung mit einem kraftbetätigten anzug-mechanismus mit einer anzug-klinke

Also Published As

Publication number Publication date
GB0018101D0 (en) 2000-09-13
EP1176273B1 (de) 2007-01-24
DE60126202D1 (de) 2007-03-15
EP1176273A3 (de) 2003-08-06

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