EP4232664B1 - Verrou de véhicule à double traction doté de loquet de sécurité - Google Patents

Verrou de véhicule à double traction doté de loquet de sécurité Download PDF

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Publication number
EP4232664B1
EP4232664B1 EP21794549.2A EP21794549A EP4232664B1 EP 4232664 B1 EP4232664 B1 EP 4232664B1 EP 21794549 A EP21794549 A EP 21794549A EP 4232664 B1 EP4232664 B1 EP 4232664B1
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EP
European Patent Office
Prior art keywords
catch
pin
base plate
pawl
lock
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EP21794549.2A
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German (de)
English (en)
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EP4232664C0 (fr
EP4232664A1 (fr
Inventor
Marco Scocco
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Cebi Italy SpA
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Cebi Italy SpA
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Publication of EP4232664C0 publication Critical patent/EP4232664C0/fr
Publication of EP4232664B1 publication Critical patent/EP4232664B1/fr
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    • 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
    • E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets

Definitions

  • the present invention relates to a double-pull lock for a vehicle lid, in particular for the vehicle hood.
  • US8,419,114 describes a vehicle hood lock that comprises a first catch that holds the hood in a closed position, and a second catch that holds the hood in a partially open position.
  • the two catches are actuated by a cam connected to a user-operable release mechanism in the passenger compartment. In this way, a first actuation of the release mechanism will release the first catch, and a second actuation of the release mechanism will release the second catch.
  • the double-pull locks of the prior art do not provide for an automatic closing of a safety catch because of the weight of the hood lid. Therefore, the closing of the lock is delegated to the presence of a microswitch that detects a movement of a catch of the lock.
  • the purpose of the present invention is to eliminate the drawbacks of the prior art by providing a double-pull lock for the hood of a vehicle that is safe, versatile, reliable, and simple to make and operate.
  • the lock according to the invention is defined by claim 1.
  • the lock (100) comprises a base plate (6) to which a catch (1), a pawl (2) and a safety catch (3) are pivoted.
  • a reset lever (4) is pivoted to the catch.
  • the catch (1) and the pawl (2) are arranged in a front side of the base plate.
  • the safety catch (3) and the reset lever (4) are arranged in a rear side of the base plate.
  • the base plate (6) comprises a "U"-shaped slot (60) suitable for accommodating a striker pin (S) ( Fig. 2 ).
  • the lock (100) can be integral with the vehicle body and the striker pin (S) can be integral with the hood lid or vice versa.
  • a first pivoting pin (P1) and a second pivoting pin (P2) are arranged in respective holes (61, 62) of the base plate (6) to pivot the catch (1) around a first pivoting axis and the pawl (2) around a second pivoting axis.
  • the two pivoting axes are parallel to each other and orthogonal to the base plate (6).
  • a third pivoting pin (P3) is disposed in a hole (63) of the base plate (6) to pivot the safety catch (3) around a third pivoting axis.
  • a fourth pivoting pin (P4) is disposed in a hole (16) of the catch and passes through a slot (64) of the base plate to pivot the reset lever (4) around a fourth pivoting axis.
  • the third and fourth pivoting axes are parallel to each other and orthogonal to the base plate (6).
  • a locking pin (7) is mounted in the base plate and protrudes rearwardly from the base plate, at a peripheral position with respect to the slot (64), in order to lock the reset lever (4).
  • the catch (1) comprises a plate (10) with a hole (11) wherein the first pivoting pin (P1) is inserted.
  • a fastening seat (12) is formed in the plate (10).
  • the fastening seat (12) has a "U" shape suitable for engaging the striker pin (S) when it is in the slot (60) of the base plate, in order to close the lock as shown in Fig. 2 .
  • a first stop tooth (13) is disposed above the fastening seat (12) and protrudes in upper position from the plate of the catch.
  • the first stop tooth (13) has a cam surface (13a).
  • a second stop tooth (14) is disposed under the fastening seat (12) and protrudes in lower position from the plate of the catch.
  • a housing (15) is obtained behind the second stop tooth (14).
  • the hole (16) for the fourth pivoting pin (4) is obtained in a central position of the plate of the catch. Instead, the hole (11) for the first pivoting pin (P1) is obtained in a peripheral position of the plate of the catch.
  • the catch (1) can rotate around the first pivoting pin (P1) to go from a closed position ( Fig. 2 ), wherein it locks the striker pin (S), to an open position ( Fig. 6 ), wherein it releases the striker pin (S).
  • An ejection spring (5) pushes the striker pin (S) so that the striker pin (S) can push the catch (1) towards the open position.
  • the ejection spring (5) is arranged in the base plate (6).
  • the ejection spring (5) has an arm (50) that is arranged on the slot (60) of the base plate, below the striker pin (S), so as to push the striker pin (S) outwards when it is in the slot (60) of the base plate. So, the ejection spring (5) acts as an ejector for the striker pin (S).
  • the ejection spring (5) comprises a helical portion (51) connected to the arm (50), in such a way that the arm (50) tangentially protrudes from the helical portion (51).
  • the helical portion (51) of the ejection spring is disposed around the first pivoting pin (P1).
  • the pawl (2) comprises a plate (20) having a central hole (21) wherein the second pivoting pin (P2) is disposed, so as to generate a first arm (20a) and a second arm (20b) that extend in opposite directions.
  • a first stop tooth (22) is provided on the first arm (20a) of the pawl.
  • the first stop tooth (22) of the pawl is suitable for abutting against the first stop tooth (13) of the catch disposed above the fastening seat (12) of the catch in order to lock the catch (1) in closed position.
  • the first stop tooth (22) of the pawl has a cam surface (22a) suitable for cooperating with the cam surface (13a) of the first stop tooth of the catch.
  • a second stop tooth (23) is provided on the second arm (20b) of the pawl.
  • the second stop tooth (23) of the pawl is suitable for cooperating with the second stop tooth (14) of the catch disposed below the fastening seat (12) of the catch.
  • a seat (25) is provided behind the second stop tooth (23) of the pawl.
  • the pawl (2) can rotate around the second pivoting pin (P2) to go from a locked position ( Fig. 1 ), wherein it locks the catch (1), to an unlocked position ( Fig. 3 ), wherein it releases the catch (1).
  • the pawl (2) is stressed in the locked position by a spring (M2).
  • the pawl (2) has a flange (24) disposed in the first arm (20a), behind the first stop tooth (22).
  • the flange (24) is suitable for accommodating a ball of a Bowden cable connected to actuation means (not shown), such as a manually-operated actuation lever or an electrically-operated actuator.
  • actuation means such as a manually-operated actuation lever or an electrically-operated actuator.
  • the Bowden cable exits to the left from the base plate (6), as shown in Fig. 2 .
  • the safety catch (3) has an "L"-plate shape having a first horizontal arm (30) and a second vertical arm (31).
  • a hole (32) is arranged in the center of the first arm to accommodate the third pivoting pin (P3).
  • a first actuation pin (33) and a second actuation pin (34) protrude orthogonally from the first arm toward the base plate (6) and are arranged in diametrically opposite positions with respect to the hole (32) of the safety catch.
  • the first actuation pin (33) and the second actuation pin (34) of the safety catch (3) penetrate respective slots (65, 66) formed in the base plate (6) to protrude anteriorly from the base plate, and engage the slots (25, 15) of the pawl and of the catch, respectively.
  • the slots (65, 66) of the base plate have a curved cam shape and are located on either side of the hole (63) for the third pivoting pin (P3).
  • the actuation pins (33, 34) of the safety catch act as followers for the cams formed by the slots (65, 66) of the base plate.
  • the safety catch (3) has a stop tooth (35) that protrudes at the end of the second arm (31) parallel to the first arm (30).
  • the stop tooth (35) is disposed on the slot (60) of the base plate and is used to lock the striker pin (S).
  • the safety catch (3) can be moved from a closing position ( Fig. 2A ), wherein the stop tooth (35) is disposed on the slot (10) of the base plate to lock the striker pin (S), to an open position ( Fig. 6A ), wherein the stop tooth (35) clears the slot (10) of the base plate to allow the striker pin (S) to exit.
  • the safety catch (3) is stressed to the open position by a spring (M3).
  • One end of the spring (M3) is connected to an attachment (36) of the safety catch, behind the stop tooth (35) and another end of the spring (M3) is connected to the base plate.
  • the reset lever (4) consists in an "L"-shaped plate with a hole (41), disposed at the corner of the "L", to accommodate the fourth pivoting pin (P4) that penetrates the slot (64) of the base plate, passes through the base plate (6) and engages the center hole (16) of the catch (1).
  • the reset lever (4) has a first arm (42) arranged vertically and a second arm (43) arranged horizontally.
  • the reset lever (4) has a fastening seat (44) suitable for engaging the second actuation pin (34) of the safety catch (3).
  • the fastening seat (44) is located at one end of the first arm of the reset lever.
  • the fourth pivoting pin (P4) of the reset lever (4) can be moved in the slot (64) of the base plate, so that the reset lever (4) can be in a non-operating position ( Fig. 2A ), wherein it does not interfere with the safety catch, and in an operating position ( Fig. 6A ), wherein the fastening seat (44) of the reset lever engages the second actuation pin (34) of the safety catch.
  • the second arm (43) of the reset lever is suitable for resting on the locking pin (7) to lock the reset lever in the non-operating position.
  • a traction spring (M4) stresses the reset lever (4) towards the operating position. Otherwise said, the spring (M4) tends to rotate the reset lever (4) clockwise, as shown in Fig. 2A .
  • a first end of the spring (M4) is connected to a protrusion (45) of the reset lever near the corner of the "L", and a second end of the spring (M4) is connected to a seat (67) of the base plate.
  • the reset lever (4) rotates clockwise due to the presence of the locking pin (7) of the base plate that locks the second arm (43) of the reset lever.
  • the reset lever (4) is pushed to rotate counterclockwise.
  • the reset lever (4) is triggered when the second arm (43) passes the locking pin (7), that is to say only when the catch has passed an intermediate closing position (pop up) in order to fasten the safety catch (3).
  • the spring (M4) also serves to rotate the safety catch (3) to its open position.
  • the spring (M4) is essential for the function of the mechanism. In view of the fact that the catch (1) and the reset lever (4) assembly has two degrees of freedom, without the spring (M4) the fastening seat (44) of the reset lever might not engage the second actuation pin (34) of the safety catch.
  • the lock (100) is in the fully closed position.
  • the striker pin (S) is locked in the fastening seat (12) of the catch.
  • the catch (1) is in closed position, blocked by the pawl (2) that is in locked position.
  • the first stop tooth (22) of the pawl locks the first stop tooth (13) of the catch.
  • the ejection spring (5) has its arm (50) under the striker pin (S) and pushes the striker pin (4) to eject it from the slot (60) of the base plate.
  • the safety catch (3) is in closed position and the actuation pins (33, 34) of the safety catch (3) are in their respective seats (25, 15) of the pawl and of the safety catch.
  • the pawl (2) holds the safety catch (3) in closed position, since the first actuation pin (33) of the safety catch is in the seat (25) of the pawl.
  • the second arm (43) of the reset lever is on the locking pin (7) and therefore the reset lever (4) does not interfere with the safety catch (3).
  • the user performs a first actuation by pulling the Bowden cable of the pawl (2) in the direction of arrow F1.
  • the pawl (2) rotates counterclockwise around the second pivoting pin (P2), going from the locked position to the unlocked position shown in Fig. 3 .
  • the first stop tooth (22) of the pawl disengages the first stop tooth (13) of the catch.
  • the spring (M2) of the pawl is loaded.
  • the catch (1) Being disengaged from the pawl (2), the catch (1) can rotate around the first pivoting pin (P1) in the direction of the arrow F2, because of the action of the ejection spring (5) that pushes the striker pin (S), which in turn pushes the catch (1) in such a way as to partially disengage the striker pin (S) from the fastening seat (12) of the catch.
  • the catch (1) prevents a rotation of the safety catch (3) to its open position.
  • one end (37) of the first arm (30) of the safety catch is abutting against the first arm (42) of the reset lever so as to prevent rotation of the reset lever (4) in a counterclockwise direction with reference to Fig. 4A .
  • the catch (1) is in an intermediate closing position, wherein the hood is raised to an intermediate position, the ejection spring (5) is abutting the pivoting pin (P2) of the pawl, and the preload of the ejection spring (5) is higher than the equivalent weight of the hood on the striker pin (S), in such a way that the striker pin (S) is resting on the ejection spring (5) when the catch (1) is in the intermediate closing position.
  • the striker pin (S) is free to move upward, pushed by the ejection spring (5) toward the stop tooth (35) of the safety catch that is still in closed position.
  • the hood is in a partially closed condition.
  • the striker pin (S) can travel upwards by a few millimeters, causing the hood to lift slightly, but the striker pin (S) will still be held by the stop tooth (35) of the safety catch.
  • the travel of the striker pin (S) from the intermediate closing position of the catch (1) to the stop tooth (35) of the safety catch is 15 mm.
  • the user actuates the Bowden cable of the pawl for the second time in the direction of the arrow F5, rotating the pawl (2) anticlockwise around the second pivoting pin (P2).
  • Such a rotation of the pawl causes the first actuation pin (33) of the safety catch to disengage from the seat (25) of the pawl.
  • both the first actuation pin (33) and the second actuation pin (34) of the safety catch are free.
  • the safety catch (3) can rotate around the third pivoting pin (P3) in the direction of arrow F6, towards its open position because of the action of its spring (M3).
  • the actuation pins (33, 34) of the safety catch are moved into the slots (65, 66) of the base plate in the direction of the arrows Z1 and Z2.
  • One end (26) of the second arm (20b) of the pawl stops against the first actuation in (33) of the safety catch, preventing the pawl (2) from returning to the closed position.
  • the lock is fully open.
  • the catch (1) has been rotated around the first pin (P1) in the direction of the arrow (F7) so that the striker pin (S) is completely disengaged and can be brought out of the slot (60) of the base plate.
  • the movement of the catch (1) causes a movement of the reset lever (4) that is pivoted to the catch.
  • the configuration of the reset lever (4) is such that, when the fastening seat (44) of the reset lever engages with the second actuation pin (34) of the safety catch in combination with the rotation of the safety catch, the second arm (43) of the reset lever no longer has the opportunity to touch the locking pin (7) of the base plate.
  • the fastening seat (44) of the reset lever (4) engages the second actuation pin (34) of the safety catch (3).
  • the closure of the lock is obtained thanks to the weight of the hood that pushes the striker pin (S) in the direction of the arrow F8, making the catch (1) rotate in the direction of the arrow F9 against the action of the ejection spring (5).
  • the rotation of the catch (1) actuates the reset lever (4) that is moved in the direction of the arrow F10 and pulls the second actuation pin (34) of the safety catch.
  • the safety catch (3) rotates in the direction of the arrow F11 and is arranged in closed position, wherein the stop tooth (35) of the safety catch closes the fastening slot (60) of the base plate.
  • the first actuation pin (33) of the safety catch disengages the end (26) of the second arm (20b) of the pawl.
  • the pawl (2) is free and can return to its stop position because of the action of its spring (M2).
  • Such a function is essential, because if the user simply rests the lid of the hood on the vehicle body, without pushing the lid, the lock remains partially engaged because the catch (1) is in an intermediate position, but the safety catch (3) is closed, unlike the double-pull locks without safety catch of the prior art, wherein the verification of the closure of the lock is entrusted only to a microswitch.
  • Fig. 8 shows the situation in which the pawl (2) has rotated in the direction of the arrow (F12), returning to its stop position, wherein the first actuation pin (33) of the safety catch is in the seat (25) of the pawl.
  • Fig. 10 illustrates the situation where, as the striker pin (S) continues to be lowered for a complete closure of the lid of the hood, the cam surface (13a) of the first stop tooth (13) of the catch (1) slides over the cam surface (22a) of the first stop tooth (22) of the pawl until the first stop tooth (13) of the catch is locked by the first stop tooth (22) of the pawl, as shown in Fig. 2 .
  • Fig. 10A illustrates the situation where the second arm (43) of the reset lever passes the locking pin (7) of the base plate so as to lock the reset lever in the position of Fig. 2A , wherein the reset lever does not interfere with the safety catch.

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  • Lock And Its Accessories (AREA)

Claims (10)

  1. Serrure (100) pour véhicule comprenant :
    - une plaque de base (6) munie d'une fissure (60) apte à accueillir un percuteur (S) solidaire à une carrosserie ou à une porte du véhicule,
    - un loquet (1) muni d'un emplacement d'accrochage (12) apte à accrocher le percuteur (S) quand il se trouve dans la fissure (60) de la plaque de base ; ledit loquet (1) étant pivoté sur ladite plaque de base (6) autour d'un premier axe de pivotement (P1) pour passer d'une position de fermeture, où il bloque ledit percuteur, à une position d'ouverture, où il libère ledit percuteur,
    - un ressort d'éjection (5) muni d'un bras (50) qui agit sur ledit percuteur (S) qui pousse le loquet (1) vers ladite position d'ouverture,
    - un cliquet (2) apte à bloquer ledit loquet (1) sur la position de fermeture ; ledit cliquet (2) étant pivoté sur ladite plaque de base (6) autour d'un deuxième axe de pivotement (P2) pour passer d'une position de blocage, où il bloque ledit loquet, à une position de déblocage, où il débloque ledit loquet ; ledit cliquet (2) étant destiné à être relié à un câble Bowden pour déplacer le cliquet (2) de la position de blocage à la position de déblocage,
    - un ressort (M2) qui pousse le cliquet sur la position de blocage,
    - un cran de sûreté (3) muni d'une dent d'arrêt (35) apte à bloquer le percuteur (S) dans la fissure (60) de la plaque de base ; ledit cran de sûreté (3) étant pivoté sur ladite plaque de base (6) autour d'un troisième axe de pivotement (P3) pour passer d'une position de fermeture, où il bloque ledit percuteur, à une position d'ouverture, où il libère ledit percuteur,
    - un ressort (M3) qui sollicite le cran de sûreté vers une position d'ouverture,
    - un levier de réarmement (4) pivoté sur ledit loquet (1) autour d'un quatrième axe de pivotement (P4) ; ledit levier de réarmement (4) se déplaçant avec le loquet (1) pour passer d'une position non opérationnelle, où il n'interfère pas avec le cran de sûreté (3), à une position opérationnelle, où il accroche le cran de sûreté (3), et
    - un ressort (M4) qui sollicite le levier de réarmement (4) vers la position opérationnelle.
  2. Serrure (100) selon la revendication 1, où ledit levier de réarmement (4) est configuré de manière à :
    - accrocher le cran de sûreté (3) lorsque le cran de sûreté (3) est en position d'ouverture et que l'on ferme la porte du véhicule, en faisant déplacer le loquet (1) vers la position de fermeture, grâce au poids de la porte,
    - entraîner le cran de sûreté (3) sur la position de fermeture, lorsque le loquet (1) se déplace vers sa position de fermeture, et
    - dégager le cran de sûreté (3), lorsque le loquet (1) est arrivé sur la position de fermeture.
  3. Serrure (100) selon la revendication 1 ou 2, où ledit loquet (1) comprend une plaque (20) munie d'un orifice (16), pour le quatrième axe de pivotement (4), réalisé sur une position centrale de la plaque et un orifice (11), pour le premier axe de pivotement (P1), réalisé sur une position périphérique de la plaque.
  4. Serrure (100) selon l'une quelconque des revendications précédentes, où ledit loquet (1) et ledit cliquet (2) sont disposés antérieurement à la plaque de base (6) et ledit cran de sûreté (3) et ledit levier de réarmement sont disposés postérieurement à ladite plaque de base ;
    ladite plaque de base (6) étant munie d'une fente (64) à travers laquelle passe ledit quatrième axe de pivotement (P4).
  5. Serrure (100) selon la revendication 4, où ledit cran de sûreté (3) a une forme de plaque en « L » ayant un premier bras (30), un second bras (31), et un orifice (32) disposé au centre du premier bras pour accueillir le troisième axe de pivotement (P3) ;
    où un premier axe d'activation (33) et un second axe d'activation (34) débordent orthogonalement du premier bras vers la plaque de base (6) et sont disposés en positions diamétralement opposées par rapport à l'orifice (32) du cran de sûreté ;
    où le premier axe d'activation (33) et le second axe d'activation (34) du cran de sûreté (3) pénètrent dans des fissures correspondantes (65, 66) réalisées sur la plaque de base (6) pour déborder antérieurement de la plaque de base et s'engager respectivement dans des emplacements (25, 15) du cliquet et du loquet.
  6. Serrure (100) selon la revendication 5, où ledit levier de réarmement (4) comprend un emplacement d'accrochage (44) apte à accrocher ledit second axe d'activation (34) du cran de sûreté (3).
  7. Serrure (100) selon la revendication 6, où ledit levier de réarmement (4) a une forme en « L » où le quatrième axe (P4) est disposé à l'angle du « L » définissant un premier bras (42), où il y a ledit emplacement d'accrochage (44), et un second bras (43) destiné à aller en butée contre une goupille d'arrêt (7) de la plaque de base, lorsque ledit levier de réarmement (4) est en position non opérationnelle.
  8. Serrure (100) selon la revendication 7, où lesdites fissures (65, 66) de la plaque de base ont une forme arquée à came et sont disposées d'une part et de l'autre par rapport à un orifice (63) de la plaque de base qui accueille ledit troisième axe de pivotement (P3).
  9. Serrure (100) selon l'une quelconque des revendications précédentes, où ledit loquet (1) comprend :
    - une première dent d'arrêt (13) disposée au-dessus de l'emplacement d'accrochage (12) et débordante supérieurement de la plaque du loquet, et
    - une seconde dent d'arrêt (14) disposée au-dessous de l'emplacement d'accrochage (12) et débordante inférieurement de la plaque du loquet ; et
    où ledit loquet (2) comprend :
    - une plaque (20) munie d'un orifice central (21) dans lequel est disposé le deuxième axe de pivotement (P2), de manière à générer un premier bras (20a) et un second bras (20b) qui se déploient dans des directions opposées.
    - une première dent d'arrêt (22) prévue sur le premier bras (20a) du cliquet, apte à aller en butée contre la première dent d'arrêt (13) du loquet pour bloquer le loquet (1) en position fermée, et
    - une seconde dent d'arrêt (23) prévue sur le second bras (20b) du cliquet, apte à coopérer avec la seconde dent d'arrêt (14) du loquet.
  10. Serrure (100) selon la revendication 9, où la première dent d'arrêt (13) du loquet a une surface à came (13a), et la première dent d'arrêt (22) du cliquet a une surface à came (22a) apte à coopérer avec la surface à came (13a) de la première dent d'arrêt du loquet.
EP21794549.2A 2020-10-20 2021-10-18 Verrou de véhicule à double traction doté de loquet de sécurité Active EP4232664B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202000024787 2020-10-20
PCT/EP2021/078823 WO2022084257A1 (fr) 2020-10-20 2021-10-18 Verrou de véhicule à double traction doté de loquet de sécurité

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EP4232664A1 EP4232664A1 (fr) 2023-08-30
EP4232664C0 EP4232664C0 (fr) 2024-08-14
EP4232664B1 true EP4232664B1 (fr) 2024-08-14

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WO (1) WO2022084257A1 (fr)

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CN114961455B (zh) * 2022-05-27 2023-07-21 伟速达（中国）汽车安全系统有限公司 具有电动开启和电动吸合功能的前盖锁
CN219138716U (zh) * 2022-11-28 2023-06-06 凯毅德汽车系统(常熟)有限公司 用于车辆的前车盖的锁
CN118407676B (zh) * 2024-05-31 2026-05-19 深蓝汽车科技有限公司 一种双拉发动机罩锁和车辆
EP4682337A1 (fr) 2024-07-17 2026-01-21 CEBI ITALY S.p.A. Serrure à double traction avec loquet de sécurité pour capot de véhicule

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US10590683B2 (en) * 2015-06-15 2020-03-17 Magna Closures Inc. Vehicle hood latch and method of unlatching a vehicle hood

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WO2022084257A1 (fr) 2022-04-28
EP4232664A1 (fr) 2023-08-30

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