EP2978915B1 - Kraftfahrzeugtürverschluss - Google Patents

Kraftfahrzeugtürverschluss Download PDF

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Publication number
EP2978915B1
EP2978915B1 EP14722083.4A EP14722083A EP2978915B1 EP 2978915 B1 EP2978915 B1 EP 2978915B1 EP 14722083 A EP14722083 A EP 14722083A EP 2978915 B1 EP2978915 B1 EP 2978915B1
Authority
EP
European Patent Office
Prior art keywords
pawl
blocking element
motor vehicle
catch
vehicle door
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.)
Active
Application number
EP14722083.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2978915A2 (de
Inventor
Michael Scholz
Oliver Goetz
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.)
Kiekert AG
Original Assignee
Kiekert AG
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 Kiekert AG filed Critical Kiekert AG
Publication of EP2978915A2 publication Critical patent/EP2978915A2/de
Application granted granted Critical
Publication of EP2978915B1 publication Critical patent/EP2978915B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B79/00—Mounting or connecting vehicle locks or parts thereof
    • E05B79/10—Connections between movable lock parts
    • 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
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • 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
    • 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
    • E05B85/26—Cooperation between bolts and detents
    • 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 invention relates to a motor vehicle door lock, with a locking mechanism consisting essentially of catch and pawl, further comprising a drive for acting on the locking mechanism, and with a blocking element interacting with the pawl with at least one pawl arm and a drive arm, wherein the pawl arm, the pawl in a detent position holds and the drive arm acts as a stop for the drive.
  • the drive arm or stop arm is provided on the blocking element and / or on the pawl and / or on a triggering element.
  • a motor vehicle door lock of the structure described above is in the DE 103 12 093 B4 presented. This is about a rotary latch lock, in which the pawl is transferred via a control by means of an electric motor as drive in its release position. This is the normal functionality in so-called "electric opening”.
  • the catch can not release the previously captured locking pin despite release.
  • Such an opening prevention exists, for example, in the case that the equipped with the lock or tailgate lock trunk lid or boot lid is frozen.
  • the electric motor is blocked by striking a stop shoulder of a blocking cam against a blocking surface of a stop arm of the local locking lever. That is, under the DE 103 12 093 B4 Prevents the local latching lever or the blocking element further rotation of the electric motor during an opening operation in particular in the event that the trunk lid has a blockage in the example. This has proven itself in principle.
  • the advantage of such multi-part pawls or multi-ratchet Gesperren is the fact that the locking works particularly quiet.
  • a first and a second pawl are regularly realized.
  • the first pawl or so-called comfort pawl interacts with a main catch of the rotary latch
  • the second pawl or pre-latch pawl engages a pre-catch of the rotary latch.
  • This pre-rest is usually defined by a contour or a bolt on the catch.
  • Such multi-ratchet ratchets are usually designed so that at least the comfort pawl or first pawl, as it were automatically lifted by the opening catch of this, if the responsible for the pre-ratchet second pawl was dug. That is, the catch causes an opening moment with respect to the first pawl or comfort pawl, so that it is easily and practically automatically and quietly or almost noiseless moved to the open position as a result of the spring bias of the catch.
  • the spring bias is provided by a spring associated with the catch, which biases the catch in an opening sense.
  • the invention is based on the technical problem of further developing such a motor vehicle door lock in such a way that the drive can optionally be combined with a multi-pawl locking mechanism, whereby at the same time a compact and cost-effective construction is pursued.
  • a generic motor vehicle door lock in the invention is characterized in that a motor vehicle door lock, with a locking mechanism consisting essentially of a catch and at least one pawl, further with a drive for acting on the locking mechanism, further with an interacting with the pawl locking element at least one pawl arm, which holds the pawl in a detent position, and a stop arm on the blocking element, which acts as a stop for the drive, wherein the blocking element is arranged on a loom fallenab mole edge and in lateral overlap with the pawl.
  • the comfort pawl typically interacts with a main catch of the catch, whereas the latch pawl interacts with a pre-catch of the catch.
  • This pre-restraint can basically be designed as a further grid on the rotary latch.
  • the preliminary catch is defined by a contour or a bolt which protrudes from the catch or stands up on the catch.
  • the drive typically operates on a release lever.
  • the release lever deflects in a first step, the pre-catch, so that it can no longer interact with the already mentioned contour or the bolt on the rotary latch.
  • the Vorrastklinke works, for example and in addition to the blocking element, which initially held the comfort latch in its rest position during the process described.
  • the blocking element with its pawl arm of the pawl respectively comfort pawl is pivoted away, so that then the spring-opening catch opens the comfort latch and can also lift out.
  • This is regularly ensured by a so-called pre-cut respectively already with reference to the WO 2008/061491 A1 known fact that the catch on the comfort pawl respectively first pawl exerts a force or respectively generates a torque on the pawl, which favors the release of the catch. That is, the catch exerts on the pawl respectively comfort pawl opening moment, the so-called "pre-cut”.
  • the pawl or comfort pawl can silently or at least quietly remove from the main branch and goes the catch and thus the locking generally in their "open" position.
  • the drive ensures that the blocking element is pivoted away from the pawl in question.
  • the pawl arm of the blocking element can not hold the pawl (more) in its detent position or main detent position.
  • the drive which in this context acts on the drive arm to pivot the blocking element accordingly.
  • the catch can again exert an opening moment on the pawl or the catch in conjunction with the pawl in question on the already mentioned "pre-cut" on.
  • the pawl moves automatically out of the detent position and the main catch position and releases the catch, quiet or virtually virtually noiseless. This is primarily due to the opening moment exerted by the catch on the pawl.
  • the blocking element now also acts as a stop for the drive. That is, the drive is braked in the course of this opening movement described with the help of the blocking element respectively stopped. This is ensured by the drive arm or stop arm of the blocking element, which also acts as a stop for the drive. In this way it is prevented that the actuated by means of the drive trigger lever for pivoting the blocking element is moved back too early in its initial position. This could result in an undefined state.
  • Such an undefined state corresponds, for example, to the fact that the pre-locking position is taken too early and the lock can not be opened.
  • the blocking element takes on a quasi-double function, on the one hand as a detent lever or to define the detent position respectively main detent position of the locking mechanism and on the other hand as a stop for the drive. All this is possible with a compact and inexpensive construction, because in the context of the invention, the blocking element is arranged on the rotary trailing edge of the pawl, thus at the edge facing the rotary latch edge of the pawl. In addition, the blocking element and the pawl are arranged in lateral overlap to each other, which ultimately amounts to that the blocking element and the pawl are arranged approximately parallel to each other.
  • the drive arm or stop arm is provided alternatively or additionally to the pawl and / or the trigger element.
  • the pawl arm and the drive arm of the blocking element advantageously describe approximately a right angle.
  • the pawl arm on the one hand can properly hold the pawl in its detent position and, on the other hand, the drive arm projecting substantially perpendicularly therefrom can be acted upon by the drive without problems.
  • the drive operates either directly on the drive arm in question for pivoting the blocking element or indirectly on the drive arm.
  • the latter variant corresponds to the fact that the drive via the tripping lever already mentioned with the interposition of Vorrastklinke then pivots the blocking element with the aid of the Vorrastklinke.
  • the pawl of the blocking element is advantageous in its releasing the pawl position on an extension of the pawl.
  • This extension may be a spring extension on the pawl. In this way, the pawl is braked at its caused by the rotary latch opening movement. Because this opening movement of the pawl takes place against the force of the spring extension and is consequently braked respectively damped.
  • the design is such that the force exerted by the catch on the pawl opening torque overcomes any (counter) spring forces of the spring extension and can overcome.
  • the pawl arm is held in a defined position, namely in contact with the extension respectively spring extension of the pawl in its releasing the catch position. Any undefined positions of the blocking element can therefore not occur in principle already.
  • the stop arm of the blocking element generally at least partially covers the already mentioned drive wheel or worm wheel of the drive.
  • the worm wheel advantageously has a radial projection which, taking into account a predetermined angle of rotation and at a certain radial distance in comparison to the axis of rotation of the drive wheel or worm wheel, rests on the worm wheel in question. The radial projection moves against the stop arm of the blocking element as soon as the drive has completed its described opening movement in the example case.
  • the blocking element after release of the pawl a defined Position opposite its axis of rotation occupies. Among other things, this is ensured by the previously described interaction of the pawl arm of the blocking element with the extension or spring extension on the relevant pawl.
  • the blocking element remote from the pawl as described can easily comply with its further function as a stop for the drive. This applies at least in the event that the blocking element does not hold the pawl (more) in its latching position or main latching position.
  • the motor vehicle door lock according to the invention is suitable both for applications with a pawl and also particularly advantageous for so-called multi-pawl locking.
  • a first and a second pawl are provided.
  • the first pawl is typically a comfort pawl that interacts with a main catch of the ratchet.
  • the second pawl is designed as Vorrastklinke and interacts generally with the already mentioned contour or the bolt, which stand up on the rotary latch.
  • the stop or drive arm for the electric drive is now generally provided on the already mentioned blocking element, which interacts with the first pawl respectively comfort pawl.
  • a stop arm or a drive arm which also acts as a stop for the drive but also be provided directly by the pawl in question or first pawl in question. That is, in this case, the pawl itself acts as a stop respectively takes over the stop function and has this on the addressed stop arm.
  • the triggering element or the release lever may have the drive arm or stop arm in question.
  • the stop arm is to be realized on the pawl
  • arrangements of the stop arm on both the comfort pawl and on the Vorrastklinke in the event of a multi-ratchet lock are conceivable and are encompassed by the invention.
  • overall functional problems are mastered.
  • situations in which the drive is stopped, even though the locking mechanism is still in a pre-locked position can no longer occur in the invention.
  • the associated motor vehicle door lock would first have to be transferred to the main latching position before a renewed opening process takes place. Such is practically excluded according to the invention.
  • the main benefits are the main benefits.
  • FIGURE shows a motor vehicle door lock according to the invention in an overview, reduced to the essential components of the invention.
  • a motor vehicle door lock is shown, which is equipped as usual with a locking mechanism 1, 2, 3 of essentially a rotary latch 1 and one or more pawls 2, 3.
  • the ratchet 1, 2, 3 interacts with a locking pin, not shown, which may be arranged on a motor vehicle body.
  • the illustrated motor vehicle door lock is typically located inside a motor vehicle door, in the example inside a tailgate. In the present case, this is therefore a tailgate lock, which, however, can basically also be used in a motor vehicle side door, that is, it may be designed as a side door lock.
  • the locking mechanism 1, 2, 3 composed of the already mentioned rotary latch 1 and two pawls 2, 3, which is to be understood only as an example and not restrictive. For this reason, only a first pawl 2 or comfort pawl 2 is shown pulled through, whereas the other second pawl 3 is reproduced as dashed as option and Vorrastklinke. It can be seen that the two pawls 2, 3 are arranged in superimposed planes. Both pawls 2, 3 are rotatably mounted about a common axis of rotation 4. The rotary latch 1 is also rotatably mounted about a rotation axis 5.
  • the drive 6 to 9 is an electric drive, with the aid of the locking mechanism 1, 2, 3 is opened electrically in the example, for example, following a "Keyless entry" routine.
  • the drive 6 to 9 consists of an electric motor 6, a connected to the drive shaft of the electric motor 6 screw 7, a worm wheel 8 and finally a projection respectively radial projection 9 on the worm wheel 8 together.
  • the radial projection 9 is connected to the worm wheel 8, taking into account a certain angle of rotation with respect to the axis 10, or stands on the worm wheel 8. In addition, the radial projection 9 has a certain radial distance to the axis 10 in question.
  • the blocking element 11 has a pawl 11a, which holds the pawl 2, 3 in a detent position.
  • the pawl arm 11a ensures that the comfort pawl 2 is held in the main latching position.
  • the comfort pawl 2 engages in a main catch 12 on the rotary latch 1 in the closed position of the locking mechanism 1, 2, 3 a. This is not shown here. Because in the reproduced open position, the blocking element 11, the pawl 2, 3 and the comfort pawl 2 free.
  • the blocking element 11 has been pivoted about its axis 13 from its detent position or the comfort pawl 2 into the main catch 12 of the catch 1 engaging position in the figuratively reproduced release position, in the counterclockwise direction.
  • the pawl arm 11a of the blocking element 11 bears against a stop 14 of the comfort pawl 2 in the example case.
  • the blocking element 11 has a stop arm 11b, with the aid of which the movement of the worm wheel 8 can be limited, namely in the subsequently to be described in detail opening operation in the counterclockwise direction, so that as a result thereof the pawl 11a of the stop 14 on the comfort pawl 2 is released. Following this, the comfort pawl 2 of the main catch 12 of the catch 1 is also free.
  • the blocking element 11 also serves to receive a bearing axis 13 for elements of the lock, not shown. The blocking element 11 pivots about the axis 13a.
  • the opening rotary latch 1 Since the rotary latch 1 is biased by a spring, not shown, in the direction of opening, that is, in the direction of a clockwise rotation with respect to its axis 5 and at the same time on the "precut" described in the introduction, the opening rotary latch 1 exerts an opening torque on the pawl or the comfort latch 2 in the example. That is, the comfort pawl 2 is brought out of engagement with the main catch 12 by the opening catch 1, and particularly light and quiet.
  • the stop arm 11b on the blocking element 11 simultaneously acts as a stop for the drive 6 to 9 in question. This position is shown in the FIGURE.
  • the drive 6 to 9 is stopped in the opening operation described in that the radial projection 9 moves at an associated counterclockwise movement of the worm wheel 8 about its axis 10 against the stop arm 11 b of the blocking element 11, in the release position of the blocking element eleventh
  • the pawl arm 11a and the stop arm 11b of the blocking element 11 describe approximately a right angle between them.
  • the pawl arm 11a on the one hand interacts easily with the stop 14 on the pawl or comfort pawl 2 and on the other hand acts as a stop for the drive 6 to 9 or the radial projection 9 of the stop arm 11b.
  • the pawl arm 11a of the blocking element 11 bears against an extension 15 of the pawl or comfort pawl 2.
  • the pawl or comfort pawl 2 on the one hand and the blocking element 11 on the other hand are fixed against each other in their respective positions, namely by means of the spring extension 15 damped.
  • the spring extension 15 ensures that the pawl or comfort pawl 2 is braked damped during the opening process.
  • This opening operation of the pawl or comfort pawl 2 corresponds as described to the fact that the opening catch 1, the pawl or Comfort pawl 2 as a result of the "pre-cut” as it were swung out of the main catch 12.
  • the pivotal movement of the pawl or comfort pawl 2 is braked by means of the then proceeding against the pawl 11a spring extension 15. This is possible because previously the blocking element 11 has already taken its pawl respectively comfort pawl 2 releasing position.
  • the drive has provided 6 to 9 in advance, as will be described in more detail below.
  • the opening operation of the rotary latch 1 and the lifting of the pawl or comfort pawl 2 corresponds to the fact that the rotary latch 1 performs the described clockwise movement about its axis 5, supported by the force of the spring, not shown.
  • the blocking element 11 is arranged on a rotating edge downstream edge and in lateral overlap with the pawl 2. That is, the blocking element 11 is located at an edge of the pawl 2, which is facing away from the catch 1. Consequently, the rotary trailing edge is opposite the edge of the ratchet 2 facing the rotary catch 1. At this percussion fallenab salen edge is also the already mentioned extension or spring extension 15 of the pawl second
  • the blocking element 11 on the one hand and the pawl 2 on the other hand overlap laterally, that is, in a sense, have an approximately parallel extension to each other.
  • the blocking element 11 is arranged in the embodiment between the electric motor 6 and the pawl 2, so that the space available at this point between the electric motor 6 and the pawl 2 is advantageously filled by the blocking element 11 and can also be filled.
  • the worm wheel 8 is arranged as it were below the previously described elements 6, 11, 2, that is, below the electric motor 6, the blocking element 11 and finally the pawl 2.
  • the middle as well as almost centrally between the electric motor 6 on the one hand and the pawl 2 on the other hand placed blocking element 11 with its stop arm 11 b also easily realize the overlap with the worm wheel 8 already described , which is a prerequisite that, according to the illustrated example, the drive arm 11 b also acts as a stop for the drive 6 to 9 or its radial projection 9 and can also act.
  • two pawls 2, 3 are realized, namely the pawl or comfort pawl 2 shown in solid line on the one hand and the pre-catch 3 shown in dashed lines on the other. So it is a Mehrklinken- or two-link system 1, 2, 3 realized.
  • main catch 12 on the rotary latch 1 which interacts with the first pawl or comfort pawl 2.
  • a further pre-restraint can generally also be realized, which however is not shown. Rather, the function of this proviso takes on an upstanding on the catch 1 bolt 16 and a corresponding contour. With the bolt 16, the pre-locking latch 3 interacts as soon as the catch 1 has reached its pre-locked position.
  • this triggered by the drive 6 to 9 trigger lever ensures that the blocking element 11 is pivoted away from its engagement with the main catch 12 and in the direction of the arrow in the counterclockwise direction.
  • the pawl 2 is released.
  • the pre-cut that is the opening moment, which is achieved by a predeterminable arrangement of the bearing points 4, 5 of pawl 2 and catch 1, now ensures that the locking mechanism opens automatically.
  • the drive 6 to 9 and in particular the worm wheel 8 continues to rotate until it finally comes to the radial projection 9 to the plant.
  • a mechanical stop for the worm wheel 8 can be dispensed with a complex control for the electric motor 6.
  • the increased current consumption can be detected on the motor 6 and thus the end position of the worm wheel 8 shown in the figure can be detected. Thereafter, the motor can be switched, for example, de-energized.
  • both the pre-locking pawl 3 engage the bolt 16 on the rotary latch 1 and the comfort pawl 2 engage the main catch 12 of the rotary latch 1.
  • the comfort pawl 2 leaves the main catch 12 of the catch 1 and moves away from it and releases the catch 1, automatically and automatically as a result of the described "pruning".
  • This opening movement of the comfort pawl 2 is damped or braked by the fact that the spring extension 15 in this process towards the end against the pawl 11a moves and as a result thereof the comfort pawl 2 is braked slowed down.
  • very low forces are necessary, so that the locking mechanism of the catch 1, comfort latch 2 and blocking element 11 opens very easily and quietly.
  • the stop arm 11 b and consequently the stop for the drive 6 to 9 not on the blocking element 11 form, as shown in the drawing.
  • the stop arm 11 b can in principle also on the pawl respectively comfort pawl second be provided.
  • the drive arm 11 b is formed on the Vorrastklinke 3.

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  • Lock And Its Accessories (AREA)
EP14722083.4A 2013-03-28 2014-03-11 Kraftfahrzeugtürverschluss Active EP2978915B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013103245.1A DE102013103245A1 (de) 2013-03-28 2013-03-28 Kraftfahrzeugtürverschluss
PCT/DE2014/000109 WO2014154192A2 (de) 2013-03-28 2014-03-11 Kraftfahrzeugtürverschluss

Publications (2)

Publication Number Publication Date
EP2978915A2 EP2978915A2 (de) 2016-02-03
EP2978915B1 true EP2978915B1 (de) 2017-08-16

Family

ID=50679799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14722083.4A Active EP2978915B1 (de) 2013-03-28 2014-03-11 Kraftfahrzeugtürverschluss

Country Status (5)

Country Link
US (1) US9617761B2 (zh)
EP (1) EP2978915B1 (zh)
CN (1) CN105264156B (zh)
DE (1) DE102013103245A1 (zh)
WO (1) WO2014154192A2 (zh)

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Publication number Publication date
WO2014154192A3 (de) 2014-12-04
EP2978915A2 (de) 2016-02-03
DE102013103245A1 (de) 2014-10-02
WO2014154192A2 (de) 2014-10-02
US20160108647A1 (en) 2016-04-21
US9617761B2 (en) 2017-04-11
CN105264156B (zh) 2017-07-04
CN105264156A (zh) 2016-01-20

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