EP1620619A1 - Motor vehicle door lock - Google Patents
Motor vehicle door lockInfo
- Publication number
- EP1620619A1 EP1620619A1 EP04730478A EP04730478A EP1620619A1 EP 1620619 A1 EP1620619 A1 EP 1620619A1 EP 04730478 A EP04730478 A EP 04730478A EP 04730478 A EP04730478 A EP 04730478A EP 1620619 A1 EP1620619 A1 EP 1620619A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor vehicle
- vehicle door
- locking mechanism
- door lock
- reinforcing element
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 55
- 230000002787 reinforcement Effects 0.000 description 16
- 210000002105 tongue Anatomy 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- 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
- E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
- E05B77/10—Allowing opening in case of deformed bodywork, e.g. by preventing deformation of lock parts
-
- 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
- E05B85/02—Lock casings
Definitions
- the invention relates to a motor vehicle door lock, with a locking mechanism accommodated in a housing, and with a reinforcing element for the locking mechanism.
- the locking mechanism is usually composed of a rotary latch and a pawl and interacts with a locking bolt, as is generally known and is described, for example, in the generic state of the art according to DE 199 34 877 AI.
- a reinforcement element in the form of a closed housing for receiving the locking mechanism is realized.
- reinforcement elements are known from practice in the form of reinforcement plates which are connected to the housing by rivets.
- the housing can be a lock case or a lock plate, which is made of metal and in which the locking mechanism is stored.
- the reinforcement element is now riveted to the lock case or lock plate in question - as described. This is complex in terms of production technology.
- the locking mechanism is exposed to increased forces, in particular in the event of a side impact, for example when an outer door panel is pressed against the housing or the lock case or the lock panel and possibly causes deformation here. In extreme lead to a blockage of the locking mechanism, so that an associated motor vehicle door can no longer be opened.
- the known embodiments allow improvements with regard to crash safety.
- the invention is based on the technical problem of further developing a motor vehicle door lock of the design described at the outset in such a way that crash safety is improved, in particular in the event of a side impact, and an associated locking mechanism can (still) be opened without problems.
- a generic motor vehicle door lock is characterized in that the reinforcing element absorbs forces acting on the housing without torque in relation to the locking mechanism.
- forces associated with a side impact still lead to deformations of the outer door panel, which can propagate as far as the housing of the motor vehicle door lock.
- the special mounting of the reinforcing element ensures that such deformations do not result in torques exerted on the locking mechanism.
- the unit consisting of the reinforcing element, housing and locking mechanism therefore absorbs such forces without torque in relation to the locking mechanism.
- the housing has at least one fastening web for the reinforcement element, which projects into a receptacle of the reinforcement element.
- the connection between the reinforcing element and the housing can be made in the usual way, for example by gluing, but also latching, by means of a plug connection etc.
- a press fit between the fastening web and an associated receptacle in the reinforcing element has proven particularly useful at this point ,
- two fastening webs are realized, which can form a trapezoid in connection with two axes of the locking mechanism. This means that the connecting lines between the two fastening webs and the two axes of the locking mechanism run largely parallel to one another.
- the fastening webs may be arranged symmetrically in comparison to a possible direction of impact force or direction of impact his. The direction of impact force therefore defines a mirror axis for the two fastening webs.
- the reinforcing element is generally arranged coplanar in comparison to a base plate of the housing and may be designed as a reinforcing plate.
- the reinforcement element or the reinforcement plate like the aforementioned base plate of the housing — essentially extends in the Y-Z plane, the mirror axis largely coinciding with the Y direction and consequently also the direction of the side impact force.
- the interference fit between the housing and the reinforcement element makes detailed use of wedge-shaped or cam-shaped fastening webs that run upwards on a bevel of the housing.
- the reinforcing element or the reinforcing plate is arranged approximately in the middle in comparison to an inlet mouth or to the locking bolt in its closed position, in order to achieve a particularly effective support of the axles of the locking mechanism and to promote the force introduction described in the event of a side impact.
- Fig. 2 shows the object of FIG. 1 with the reinforcing element
- Fig. 3 is a side view of the object of FIG. 2 from the direction X.
- the figures show a motor vehicle door lock, the basic structure of which has a housing, which in the present case is designed as a lock case 1 or contains such a lock case 1.
- the lock case 1 is U-shaped in cross section with side walls 1b and 1c.
- a ratchet 2, 3 of rotary catch 2 and pawl 3 is received in the lock case 1, a ratchet 2, 3 of rotary catch 2 and pawl 3 is received.
- bearing pins 4 are anchored in a base plate la of the lock case 1 and accommodate the catch 2 or pawl 3.
- a reinforcing element 5 is realized, which is a reinforcing plate 5.
- the reinforcing plate 5 is fixed on the housing or lock case 1 with the aid of press fits 6. Details of the respective press fit 6 can best be seen from the enlarged detail in FIG. 3.
- the reinforcing plate 5 then has recesses 7, through which fastening webs 8 extend.
- the fastening webs 8 are integrally formed on the lock case 1 or protrude from its side wall 1b. Spring tongues 9 in the area of the recesses 7 engage the fastening webs 8 when the reinforcing plate 5 is positioned.
- the fastening webs 8 are wedge-shaped or cam-like and, starting from the bottom of the side wall 1b, taper upwards as it were.
- the spring tongues 9 meet in the region of the recesses 7 with a growing cross section of the respective fastening web 8, so that the described press fit 6 is achieved, as the enlarged representation according to FIG. 3 immediately makes clear.
- the reinforcement element 5 rests on the head side on the side wall 1b of the lock case 1
- the spring tongues 9 are bent up as a result of the wedge shape of the fastening webs 8 and increasingly hold the reinforcement element or the reinforcement plate 5 on the lock case 1.
- two small spring tongues face each other on the narrow sides of the rectangle, while a broad side of the rectangle is equipped with a pronounced spring tongue 9.
- In the area of this larger spring tongue 9 there is a corresponding beveling of the respective fastening web 8, so that the spring tongue 9 in question is increasingly bent up when the reinforcing element 5 is pressed onto the side wall 1b of the lock case 1.
- the reinforcement element or the reinforcement plate 5 has a lateral protrusion 11, which can be seen in particular in FIG. 2.
- This protrusion 11 protrudes laterally beyond the housing 1 or the lock case 1 by the amount M, as the side view according to FIG. 3 makes immediately clear. It extends essentially in the opposite direction compared to a possible direction of impact which is indicated by an arrow A in the figures.
- the direction of impact A extends largely in the Y or vehicle transverse direction if one assumes a side impact.
- a rear impact must also be taken into account, which is generally congruent with the X or vehicle longitudinal direction.
- the reinforcing element or the reinforcing plate 5 is essentially planar and curved and has a cutout 12 in the area of an inlet mouth 13 for a locking bolt 14, which is only indicated and cooperates with the catch 2.
- a back 15 is provided, which is generally provided with the supernatant 11 coincides.
- two fastening legs 16 complete the reinforcing element 5 for the axes 4 of the catch 2 of the pawl 3.
- the reinforcing element or the reinforcing plate 5 additionally has a receptacle 17 in the form of a receptacle bore 17 for a lever 18.
- This lever 18 is the outer actuating lever 18, which is actuated by a merely indicated outer door handle 19 with the interposition of a connecting member 20, for example a rod or a Bowden cable.
- the axes 4 of the catch 2 and pawl 3 may be riveted to the reinforcing element 5. This may also apply to a bearing mandrel or an axis 21 on the outer operating lever 18, wherein the outer operating lever 18 and bearing mandrel or axis 21 can form a one-piece structural unit.
- the reinforcing element 5 or the reinforcing plate 5 is arranged essentially in the middle in comparison to the inlet mouth 13.
- the vehicle vertical direction and / or the vehicle vertical direction and / or the vehicle direction are finally added to complete the drawing Z direction shown.
- the trapezoidal shape occurs because the two fastening webs 8 and the two axes 4 are connected to one another by parallel connecting lines. It can be seen that the direction of impact force or direction of impact A forms a mirror axis for the two fastening webs 8. In the illustrated closed state of the motor vehicle door lock, the locking bolt 14 lies on this mirror axis.
- the opposing forces built up by the two axes 4 of the locking mechanism 2, 3 are indicated by arrows which intersect at a point on the mirror axis in question or the direction of impact A. Forces in this impact direction A or impact force direction A are absorbed symmetrically by the reinforcing element 5 and no torques are exerted on the axes 4 of the locking mechanism 2, 3. Even in the event of a side impact with the forces shown, it can therefore be expected that the two axes 4 of the locking mechanism 2, 3 will not experience any deformations, so that the locking mechanism 2, 3 is basically functional even in such a case.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003120449 DE10320449A1 (en) | 2003-05-08 | 2003-05-08 | Motor vehicle door lock |
PCT/DE2004/000910 WO2004101923A1 (en) | 2003-05-08 | 2004-04-30 | Motor vehicle door lock |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1620619A1 true EP1620619A1 (en) | 2006-02-01 |
EP1620619B1 EP1620619B1 (en) | 2010-08-04 |
Family
ID=33440656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04730478A Expired - Lifetime EP1620619B1 (en) | 2003-05-08 | 2004-04-30 | Motor vehicle door lock |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1620619B1 (en) |
DE (2) | DE10320449A1 (en) |
WO (1) | WO2004101923A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009010681U1 (en) | 2009-08-07 | 2009-12-17 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Opening and / or closing mechanism on doors, flaps or the like, especially on vehicles |
DE102009029025A1 (en) * | 2009-08-31 | 2011-03-03 | Kiekert Ag | Motor vehicle lock with power transmission to the lock case |
DE202012010242U1 (en) * | 2012-10-26 | 2014-01-29 | Kiekert Aktiengesellschaft | Motor vehicle door lock |
DE102014114966A1 (en) | 2014-10-15 | 2016-04-21 | Kiekert Ag | Motor vehicle door lock |
DE102017104152A1 (en) | 2017-02-28 | 2018-08-30 | Kiekert Ag | MOTOR VEHICLE LOCK |
DE102018116325A1 (en) * | 2018-07-05 | 2020-01-09 | Kiekert Ag | Lock for a motor vehicle |
DE102019108967A1 (en) | 2019-04-05 | 2020-10-08 | Kiekert Aktiengesellschaft | MOTOR VEHICLE DOOR LOCK |
DE102020102759A1 (en) | 2020-02-04 | 2021-08-05 | Kiekert Aktiengesellschaft | Motor vehicle lock |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4756563A (en) * | 1986-08-11 | 1988-07-12 | General Motors Corporation | Vehicle door latch |
JP2552204B2 (en) * | 1991-03-26 | 1996-11-06 | 三井金属鉱業株式会社 | Frame of lock device for trunk door |
DE19505627A1 (en) * | 1995-02-18 | 1996-08-22 | Mauer Gmbh | Double bit lock |
FR2760778B1 (en) * | 1997-03-11 | 1999-05-14 | Valeo Systemes De Fermetures | LOCK FOR MOTOR VEHICLE |
FR2773580B1 (en) * | 1998-01-15 | 2000-02-18 | Valeo Systemes De Fermetures | METHOD FOR MOUNTING A MOTOR VEHICLE DOOR LOCK HOUSING, LOCK TO BE MOUNTED BY THIS METHOD AND FORK USED FOR THIS MOUNTING |
FR2791386B1 (en) * | 1999-03-23 | 2001-06-08 | Valeo Securite Habitacle | MOTOR VEHICLE OPENING LOCK |
GB9916633D0 (en) * | 1999-07-16 | 1999-09-15 | Meritor Light Vehicle Sys Ltd | Latch mechanism |
-
2003
- 2003-05-08 DE DE2003120449 patent/DE10320449A1/en not_active Withdrawn
-
2004
- 2004-04-30 DE DE502004011482T patent/DE502004011482D1/en not_active Expired - Lifetime
- 2004-04-30 WO PCT/DE2004/000910 patent/WO2004101923A1/en active Application Filing
- 2004-04-30 EP EP04730478A patent/EP1620619B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004101923A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE502004011482D1 (en) | 2010-09-16 |
WO2004101923A1 (en) | 2004-11-25 |
DE10320449A1 (en) | 2005-03-03 |
EP1620619B1 (en) | 2010-08-04 |
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