EP0519280A1 - Serrure pour battant de véhicule automobile - Google Patents

Serrure pour battant de véhicule automobile Download PDF

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Publication number
EP0519280A1
EP0519280A1 EP92109506A EP92109506A EP0519280A1 EP 0519280 A1 EP0519280 A1 EP 0519280A1 EP 92109506 A EP92109506 A EP 92109506A EP 92109506 A EP92109506 A EP 92109506A EP 0519280 A1 EP0519280 A1 EP 0519280A1
Authority
EP
European Patent Office
Prior art keywords
fork latch
spring
latch
pawl
lever
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
EP92109506A
Other languages
German (de)
English (en)
Other versions
EP0519280B1 (fr
Inventor
Bernd Weyerstall
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.)
Bomoro Bocklenberg and Motte GmbH and Co KG
Original Assignee
Bomoro Bocklenberg and Motte GmbH and Co KG
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 Bomoro Bocklenberg and Motte GmbH and Co KG filed Critical Bomoro Bocklenberg and Motte GmbH and Co KG
Publication of EP0519280A1 publication Critical patent/EP0519280A1/fr
Application granted granted Critical
Publication of EP0519280B1 publication Critical patent/EP0519280B1/fr
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
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing

Definitions

  • the invention relates to a motor vehicle hood lock, door lock or the like. With a spring energy store as a closing aid, with the features of the preamble of claim 1.
  • a problem with motor vehicle hood locks in the following this term is used as a representative for all other variants that are equipped with a spring force accumulator, is that the spring force accumulator between a fixed point on an angle plate or the like.
  • the locking mechanism and the fork latch itself either one leg of the fork latch or the back of the fork latch (EP-A 0 285 006) is articulated.
  • the spring force accumulator passes through its dead center with the spring shortened to the block length, for example, then it expands again and relaxes and the stored spring force is transmitted to the fork latch as closing force, i.e. the hood or door moved.
  • the stroke distance between the preliminary catch and the main catch, as are mostly provided for motor vehicle doors, the closing path on the piece from the middle position to the closed position is often only a few millimeters long, for example 3 to 5 mm.
  • a high force has to be applied by the spring force accumulator, but this can only be introduced into the spring force accumulator with a very small spring travel.
  • Other is not possible in the design of the fork latch and the direct coupling of the spring energy accumulator with the fork latch.
  • the power transmission ratios in the known motor vehicle hood lock, from which the invention is based are still unsatisfactory.
  • the above-mentioned object is first achieved by the features of the characterizing part of claim 1. It is essential that an additional degree of freedom has been created by introducing the transmission lever in order to specify a certain transmission ratio between the spring travel of the spring force accumulator on the one hand and the deflection on the fork latch on the other hand.
  • the specification described makes it possible to realize a large spring travel and thus high spring forces with optimal force transmission ratios on the spring force accumulator regardless of a small, necessary deflection on the fork latch.
  • a clutch transmitting only compressive forces, but no tensile forces, has the advantage that one gains a degree of freedom, which can be particularly important when opening the lock.
  • the active one Opening the fork latch according to claim 7 prevents the hood from "remaining" when opening. This is particularly facilitated by the fact that, according to claim 9, the spring force accumulator is tensioned when the pawl is pivoted out of the main latch of the fork latch and not only when the fork latch is pivoted out into the open position. This considerably optimizes the power transmission conditions even during the opening process.
  • the lock shown in its basic structure in Fig. 1 extremely schematically is a motor vehicle hood lock, which may be used on the hood frame on both sides of the hood, so double.
  • a motor vehicle hood lock which may be used on the hood frame on both sides of the hood, so double.
  • motor vehicle door locks as well as with tailgate locks, hood locks or the like.
  • Fig. 1 shows first the locking block 1 and the locking mechanism 2 of the motor vehicle hood lock.
  • the locking mechanism 2 has an inlet slot 3 for the locking block 1, which is arranged in a support or base plate 5, which is angular and is covered by a cover housing 6.
  • a conventional fork latch 7 is arranged, which is used to grasp the locking block 1 and can be pivoted about a pivot axis 8.
  • the fork latch 7 is assigned a pawl 9 for locking the fork latch 7 via at least one main catch 10. In the case of door locks, a preliminary catch is additionally provided, in the example of a hood lock one main catch 10 is sufficient.
  • the pawl 9 is in turn mounted on a pivot axis 11.
  • a spring force accumulator 12 consisting of a telescopically collapsible support element 13 and a spring 14 is connected to the fork latch 7 in terms of drive technology.
  • a spring force accumulator 12 with a mechanical spring 14 could also be used, as is known, for example, from DE-A 2 344 185.
  • the spring force accumulator 12 is now connected to the fork latch 7 via a double-armed transmission lever 15, the short lever arm 16 of which acts on the fork latch 7 and the long lever arm 17 on the spring force accumulator 12.
  • the transmission lever 15 can be pivoted at the common end point of both lever arms (16, 17) mounted, by means of a pivot axis 18. It is therefore a double-armed lever with not congruent lever arms 16, 17, these lever arms are at an approximately right angle to each other in the embodiment shown here.
  • the transmission lever 15 engages an arm of the fork latch 7, and of course, as in the prior art, it could also engage on the rear side of the fork latch 7 beyond the pivot axis 8.
  • a special arrangement of the transmission lever 15 is selected, which leads to a particularly small footprint. It is namely the case that the short lever arm 16 engages the fork latch 7 on one side of the inlet slot 3, the spring force accumulator 12 is arranged on the other side of the inlet slot 3 and the long lever arm 17 extends over to the other side of the inlet slot 3.
  • the space that the fork latch 7 and pawl 9 occupy anyway is used here on a second level to provide the required transmission ratio.
  • the fork latch 7 and the spring force accumulator 12 are connected directly to one another via a swivel joint. Such a direct connection could also be used, possibly with the interposition of a realize another, permanently articulated transmission rod between the transmission lever 15 and the fork latch 7.
  • this has the disadvantage that the fork latch 7 is not independent of the spring force accumulator 12, which can be advantageous under certain operating conditions. Therefore, according to the invention, a special embodiment has been chosen, in which the transmission lever 15 is connected to the fork latch 7 by means of a coupling 19 which transmits compressive forces but no tensile forces.
  • This type of clutch 19 has the advantage that forces are transmitted in one direction, but not in the other, so that fork latch 7 and spring force accumulator 12 can be uncoupled from one another if necessary in the other direction, which is particularly important when the lock is opened is.
  • Such a coupling 19 can be realized, for example, by assigning an elongated hole pivot bearing to an intermediate transmission rod, as mentioned above, on the transmission lever 15 and / or on the fork latch 7, so that no forces are transmitted in the pulling direction.
  • the form of the clutch 17 explained is realized in that the clutch 19 has a roller 20, preferably arranged on the short lever arm 16, which rolls on a control surface 21, preferably arranged on the fork latch 7.
  • this control surface 21 it is also possible, in the intended application as a hood lock, to largely destroy the energy of the closing engine hood, and to convert it into spring energy, stored in the spring force accumulator 12, which is associated with low noise.
  • the pawl 9 is connected to a release lever 22 and can be pivoted out of the main catch by a pivoting movement of the release lever.
  • the fork latch 7 can be actively moved in the opening direction after the pawl has been pivoted out of the main catch 10.
  • the aforementioned trigger lever 22 is used in the illustrated and preferred exemplary embodiment, which for this purpose leads out of the cover housing 6 through an opening 23 and is connected there with a train indicated by the arrow, which ends, for example, in the interior of the motor vehicle on a bonnet release lever.
  • the actuation of the fork latch 7 by the release lever 22 is realized in that an actuating arm 24 is provided on the release lever 22 and a corresponding actuating pin 25 is provided on the fork latch 7 and that the actuating arm 24 on the actuating pin 25 on the actuating pin 25 when the fork latch 7 is in the closed position and the pawl is pivoted out Facility is coming.
  • the assignment of actuating arm 24 and actuating pin 25 can also be reversed. So you have an idle stroke between the actuating arm 24 and actuating pin 25 when the lock is locked, so that the pawl 9 can first be lifted out of the main catch 10 before the fork latch 7 can be moved in the opening direction. The bonnet is thus actively raised.
  • the spring force of the spring force accumulator 12 When the bonnet is actively lifted in the previously explained sequence, the spring force of the spring force accumulator 12 must first be overcome again, as in the prior art, when the central position in the opening direction is exceeded, the force stored in the spring force accumulator 12 then supports the further opening of the bonnet. This can sometimes hinder the sequence of movements when the fork latch 7 is pivoted out, ie the forces which occur are relatively large and are perceived as disruptive by the driver.
  • the embodiment shown in the drawing is finally characterized in that the pawl 9 is pivotable relative to the release lever 22, however, preferably, spring-loaded in the direction of incidence, but is limited in the pivoting path and, preferably, that one on the fork latch 7 in front of the main catch 10 Control surface 27 is formed for the pawl 9. 3, the stop 28 limiting the movement of the pawl 9 in the direction of incidence is indicated; it is necessary in order to be able to bring the pawl 9 out of the main catch 10 when opening.
  • the spring loading the pawl 9 here in the direction of incidence is not shown.
EP92109506A 1991-06-18 1992-06-05 Serrure pour battant de véhicule automobile Expired - Lifetime EP0519280B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4120021 1991-06-18
DE4120021A DE4120021C1 (fr) 1991-06-18 1991-06-18

Publications (2)

Publication Number Publication Date
EP0519280A1 true EP0519280A1 (fr) 1992-12-23
EP0519280B1 EP0519280B1 (fr) 1994-05-18

Family

ID=6434178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109506A Expired - Lifetime EP0519280B1 (fr) 1991-06-18 1992-06-05 Serrure pour battant de véhicule automobile

Country Status (3)

Country Link
EP (1) EP0519280B1 (fr)
DE (2) DE4120021C1 (fr)
ES (1) ES2053345T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708958A1 (fr) * 1993-08-12 1995-02-17 Coutier Moulage Gen Ind Serrure avalante à assistance pour porte ou similaire, notamment pour véhicule automobile.
CN109690000A (zh) * 2016-09-14 2019-04-26 开开特股份公司 机动车门锁
CN114901916A (zh) * 2019-12-20 2022-08-12 开开特股份公司 机动车门锁系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007009184U1 (de) 2007-06-29 2008-11-06 BROSE SCHLIEßSYSTEME GMBH & CO. KG Kraftfahrzeugtüranordnung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1416770A (fr) * 1963-12-02 1965-11-05 Serrure pour portes de véhicules moteurs
DE2344185A1 (de) * 1973-09-01 1975-03-06 Kiekert Soehne Arn Tuerverschluss fuer schwenkschiebetueren

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2737639C2 (de) * 1977-08-20 1982-02-18 Volkswagenwerk Ag, 3180 Wolfsburg Schließhilfe für eine Kraftfahrzeugtür, insbesondere für eine Kfz-Schiebetür
IT211156Z2 (it) * 1987-03-31 1989-02-13 Fiat Auto Spa Dispositivo di incaglio con recupero automatico dei giochi in particolare per serrature di veicoli

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1416770A (fr) * 1963-12-02 1965-11-05 Serrure pour portes de véhicules moteurs
DE2344185A1 (de) * 1973-09-01 1975-03-06 Kiekert Soehne Arn Tuerverschluss fuer schwenkschiebetueren

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708958A1 (fr) * 1993-08-12 1995-02-17 Coutier Moulage Gen Ind Serrure avalante à assistance pour porte ou similaire, notamment pour véhicule automobile.
CN109690000A (zh) * 2016-09-14 2019-04-26 开开特股份公司 机动车门锁
CN109690000B (zh) * 2016-09-14 2021-01-29 开开特股份公司 机动车门锁
CN114901916A (zh) * 2019-12-20 2022-08-12 开开特股份公司 机动车门锁系统
CN114901916B (zh) * 2019-12-20 2023-11-17 开开特股份公司 机动车门锁系统

Also Published As

Publication number Publication date
DE4120021C1 (fr) 1992-12-17
DE59200170D1 (de) 1994-06-23
ES2053345T3 (es) 1994-07-16
EP0519280B1 (fr) 1994-05-18

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