WO2022263048A1 - Türschloss für ein fahrzeug mit reduzierter geräuschentwicklung - Google Patents
Türschloss für ein fahrzeug mit reduzierter geräuschentwicklung Download PDFInfo
- Publication number
- WO2022263048A1 WO2022263048A1 PCT/EP2022/061566 EP2022061566W WO2022263048A1 WO 2022263048 A1 WO2022263048 A1 WO 2022263048A1 EP 2022061566 W EP2022061566 W EP 2022061566W WO 2022263048 A1 WO2022263048 A1 WO 2022263048A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- door lock
- wedge
- locking
- connecting piece
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims abstract 7
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000000284 resting effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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
- E05B85/26—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
- E05B77/38—Cushion elements, elastic guiding elements or holding elements, e.g. for cushioning or damping the impact of the bolt against the striker during closing of the wing
-
- 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
-
- 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
Definitions
- the invention relates to a door lock for a vehicle and a vehicle with such a door lock.
- Vehicle door locks can be a source of noise when the door lock is functionally designed internally with play to ensure reliable door lock operation.
- DE 102017205656 A1 relates to the reduction of this problem and states the task of providing an improved lock in order to prevent the locking surfaces of the pawl and rotary latch from separating due to dynamic load change reactions of the flap while driving, particularly in the closed position and at low sealing pressures.
- DE 102017205656 A1 specifies a lock, in particular for a backrest or a tailgate of a motor vehicle, comprising: A rotary latch with a locking element, an associated locking mechanism, in particular a pawl, for locking the rotary latch in a closed position of the lock in which the Rotary latch and the locking element are coupled in a closing manner, and a immobilisation lever which is coupled to the locking mechanism, the immobilisation lever having an outer contour which holds the locking element in the closed position of the lock in the rotary latch in a self-locking manner.
- the immobilization lever is the decisive device feature of DE 102017205656 A1 for solving the above task.
- a bulge typically has some play so that the above-mentioned locking mechanism can properly engage in a bulge of the rotary latch so that the rotary latch holds the closing element in a form-fitting manner and remains locked in this position.
- the rotary latch can also continue to twist because of this play, since the locking mechanism associated with the play mentioned above does not open Stop is held in the catch in a circumferential direction of the catch.
- the immobilization lever is an element of the door lock, which is arranged in a vehicle door, for example, together with the rotary latch and the locking mechanism.
- the self-locking bracing function of the immobilisation lever can be implemented, for example, by a rotatably mounted immobilisation lever, which has a rounding with an increasing radius on its outside at least over a certain angular range.
- a larger outer radius of the immobilization lever makes contact with a second part, which presses against the closing element and is arranged, for example, on the body.
- the increasing radius on this circumferential segment corresponds to an incline.
- the object of the invention is to solve the problem described above and to extend the service life of the door lock, in particular by increasing the service life of the functioning of such an immobilization lever (described below with the elements of the "wedge system", particularly described by the "wedge lever").
- a first aspect of the invention relates to a door lock for a vehicle, having:
- a rotary latch for positively holding a locking element in the closed state of the door lock by gripping, in particular by rotating gripping, the locking element
- a locking mechanism in particular a pawl, for locking the rotary latch against releasing the form fit of the rotary latch with the locking element in the closed state of the door lock after a closing movement of the locking mechanism
- a wedge system comprising a wedge lever and a connecting piece, wherein the wedge lever and the connecting piece can move relative to each other and can be brought into a self-locking contact position for the closed state of the door lock in order to reduce a relative movement between the closing element and the rotary latch, characterized in that that the locking mechanism frictionally and/or positively contacts a circumference of a rotatably mounted output lever via a circumferential segment in the shape of a circular arc, so that during an opening movement and during a closing movement of the locking mechanism, the output lever is rotated by rolling on the circumferential segment of the locking mechanism, with the output lever being coupled to a driver lever , so that the driving lever releases the self-locking connection between the wedge lever and the connecting piece as a result of the rotation of the output lever during the opening movement of the locking mechanism.
- the driver lever, the output lever and the wedge lever are mounted concentrically so that they can rotate with one another and can rotate independently of one another in their mounting.
- Driving lever, output lever and wedge lever therefore preferably have a common kinematic axis of rotation, but are in principle mounted in a housing of the door lock such that they can rotate independently of one another.
- the output lever has a cam that rotates with the output lever, the cam hitting a projection of the driver lever during an opening movement of the locking mechanism and after the cam and the projection meet, the output lever also rotates the driver lever.
- the cam is designed as a projection which protrudes from a round surface of the output lever.
- the driver lever and the wedge lever are coupled via an opening spring, with the opening spring urging the wedge lever out of the self-locking connection into an open position in order to release the self-locking connection between the wedge lever and the connecting piece, in that the opening spring acts through the driver lever, guided by the output lever, is tensioned against a spring force and the tensioned opening spring presses against the wedge lever in the direction of rotation towards the open position.
- the opening spring has the advantageous effect that a stuck wedge lever does not block the locking mechanism and thus does not open the lock.
- the opening spring is a spiral spring guided around an arc-shaped guide of the driver lever.
- the driver lever is connected to a closing spring, the closing spring being arranged and prestressed in such a way that the closing spring urges the driver lever together with the wedge lever in the direction of the self-locking position.
- the closing spring also causes the wedge lever to be reloaded, even when it is worn, since such signs of wear are compensated for with its spring deflection, which is far above the dimensions of wear to be expected.
- the connecting piece is a portion of the closing element.
- the self-locking connection between the connecting piece and the wedge lever takes place directly on the closing element, since the wedge lever and the closing element touch each other directly and the self-locking connection is created.
- the connecting piece is rotatably mounted, with a surface that interacts with the wedge lever being arranged on a first side of the connecting piece to form the self-locking function, and a second side of the connecting piece, opposite the first, presses against the locking element when the door lock is in the closed state, in that a radial force of the wedge lever is transmitted to the closing element via the connecting piece.
- the flexible mounting of the connecting piece enables an ideal self-locking contact effect between the wedge lever and the connecting piece, with the connecting piece also serving as a spacer between the wedge lever and the closing element, so that the wedge lever can be made shorter.
- the circumferential segment of the locking mechanism in the shape of a circular arc has end teeth.
- the spur gearing is a particularly reliable means of also being able to transmit higher forces between the locking mechanism and the output lever without the functioning being disrupted by slip that occurs.
- the rolling side of the output lever has a toothed surface in which the face toothing engages. This creates a translating effect of the output lever through the arcuate peripheral segment of the locking mechanism, which ensures a larger readjustment angle of the wedge lever.
- a further aspect of the invention relates to a vehicle with a door lock as described above and below, with the locking element being arranged on a body of the vehicle, with the rotary latch and the locking mechanism and the wedge system and the output lever and the driving lever being arranged on a door of the vehicle are.
- Fig. 1 Parts of a door lock from the prior art.
- Fig. 2 A door lock according to an embodiment of the invention.
- Fig. 3 The door lock of Fig. 2 in a sectional view.
- Fig. 4 Parts of the door lock of Fig. 2 enlarged in a sectional view.
- Fig. 5 A vehicle with a door lock according to an embodiment of the invention.
- a rotary latch 5 is used to hold a locking element 7 in a form-fitting manner in order to keep the door closed when the door lock 1 is in a closed state.
- a locking mechanism 9 falls into a bulge in the rotary latch 5 in order to protect it from turning out and becoming detached.
- the rotary latch 5 thus remains locked in the position encompassing the closing element 7 .
- the rotary latch 5 must continue to rotate clockwise until there is a gap with play between the edge defining the bulge of the rotary latch 5 and the angular projection of the locking mechanism 9 .
- This play is also reflected in the distance between the closing element 7 and the bay-shaped concave bulge of the rotary latch 5. This play is also called overtravel and can cause the door lock 1 to produce rattling noises when excited while driving. 2 to 4 below therefore show a solution for preventing this problem by additionally clamping the closing element 7 by a wedge lever 13, taking into account the wear of the wedge lever 13 and other components.
- FIG. 2 shows a door lock 1 for a vehicle 3 as shown in FIG.
- the door lock 1 has a rotary latch 5 for positively holding a locking element 7 in the closed state of the door lock 1 by rotating it, and a locking mechanism 9, designed here as a pawl, for locking the rotary latch 5 against releasing the positive locking of the rotary latch 5 with the locking element 7 after a closing movement of the locking mechanism 9.
- the door lock 1 has a wedge system 11 with a wedge lever 13 and a connecting piece 15 .
- the wedge lever 13 and the connecting piece 15 are movably mounted in such a way that they can move relative to one another and can be brought into a self-locking contact position for the closed state of the door lock 1, as shown in FIG.
- the wedge lever 13 can be rotated clockwise into an open position in the view in FIG. 2 .
- the wedge lever 13 presses against the rotatably mounted connecting piece 15 , which in turn presses against the locking element 7 in order to reduce a relative movement between the locking element 7 and the rotary latch 5 .
- the locking mechanism 9 contacts the circumference of a rotatably mounted output lever 17 via an arcuate circumferential segment on its end face by means of spur gearing, so that during an opening movement and during a closing movement of the locking mechanism 9 the driven lever 17 is rotated by rolling on the circumferential segment of the locking mechanism 9, with the output lever 17 is coupled to a driver lever 19, so that the rotation of the output lever 17 during the opening movement of the locking mechanism 9 of the driver lever 19 releases the self-locking connection between wedge lever 13 and connecting piece 15.
- the driver lever 19, the output lever 17, and the wedge lever 13 are all mounted concentrically rotatable relative to one another and, in principle, can be rotated independently of one another in their mounting. However, the driver lever 19 and the wedge lever 13 are coupled via an opening spring 25 .
- the opening spring 25 tends to push the wedge lever 13 to release the self-locking connection between wedge lever 13 and connecting piece 15 from the self-locking connection into an open position when the driving lever 19 compresses the opening spring 25 sufficiently far.
- the opening spring 25 is not shown separately in FIG. 2, but only the arcuate guide 27 of the driving lever 19, around which the opening spring 25 designed as a spiral spring is guided.
- the opening spring 25 is then compressed by the driver lever 19 when a cam 21 rotating with the output lever 17 strikes a projection 23 of the driver lever 19 and the driver lever 19 rotates as well.
- the driver lever 19 then compresses the opening spring 25 and uses its spring force to press against the wedge lever 13.
- a closing spring 29, which presses against the driver lever 19, causes the driver lever 19 together with the wedge lever 13 to move in the direction of the self-locking position when the door lock is closed 1 running.
- the opening process of the door lock 1 can be described as follows:
- the locking mechanism 9 is designed as a pawl and the closing element 7 is designed as a striker.
- the arcuate peripheral segment of the pawl 9 is designed as a spur gearing in order to rotate the peripheral segment of the rotatably mounted output lever 17 with every movement of the pawl 9, be it an opening movement or a closing movement of the pawl 9.
- the output lever 17 is rotatably mounted in the door lock 1 , so that the output lever 17 rotates, driven by the front teeth of the pawl 9 .
- the output lever 17 is moved due to the movement of the spur gearing of the Pawl 9 is turned until a cam 21 arranged on the output lever 17 hits a projection of the driver lever 19 .
- the driver lever 19, the output lever 17, and the wedge lever 13 are all mounted concentrically and can rotate independently of one another about the same kinematic axis. If, as mentioned above, the cam 21 of the driven lever 17 hits the projection of the driving lever 19, the driving lever 19 is also rotated, guided by the rotational movement of the driven lever 17.
- the opening spring 25 compensates for play and changes in geometry, so that the functioning of the mechanism is not impaired, regardless of signs of wear on the wedge lever 13 . If the friction of the self-locking connection is overcome, the opening spring 25 relaxes until the wedge lever 13 hits a stop of the driver lever 19 . Then the self-locking effect between wedge lever 13 and connecting piece 15 is completely eliminated, the wedge lever 13 no longer acts on the connecting piece 15 and the connecting piece 15 no longer presses on the striker 7, so that the striker 7 moves with play in the rotary latch 5 is located, which, however, also no longer encompasses the striker 7 when the pawl 9 is sufficiently opened. In this final state, the door lock 1 is open and neither the connecting piece 15 nor the rotary latch 5 make contact with the striker 7, so that the door is no longer held by the striker 7 by positive engagement in the door lock 1 and can be opened.
- the pawl 9 When the door lock 1 is closed, the pawl 9 performs the opposite movement to that described above after the rotary latch 5 has gripped the striker 7 so that the striker 7 is held in a form-fitting manner by the gripping rotary latch 5 .
- the rotary latch 5, held by the pawl 9 can no longer rotate in such a way that it no longer grips the striker 7 - this secures the rotary latch 5 in its non-gripping position around the striker 7.
- the output lever 17 is rotated - only in the opposite direction of rotation to the opening movement of the door lock 1 described above.
- a closing spring 29 is arranged on an upper side of the driving lever 19, which presses on the driving lever 19 and ensures that the wedge lever 13 is always in the self-locking position is urged, regardless of how much wear on the wedge lever 13, in particular its coming into contact with the connecting piece 15 surface, and on the other components of the door lock 1 has already occurred.
- the mode of operation of the output lever 17 and the closing spring 29 and the opening spring 25 ensure that the service life of the door lock 1 is increased, since, for example, both springs ensure their mechanism of action regardless of wear and compensate for changed games, lengths, required angles or the like through their movement .
- FIG. 3 shows the door lock 1 of FIG. 2, but with the wedge lever 13 removed, in order to explain the functioning and the interaction, in particular between the locking mechanism 9 and the output lever 17.
- the output lever 17 rolls on its peripheral segment, which is located at the upper end of the locking mechanism 9 in FIG. 3 .
- it is shown in several positions in FIG. 3 over an opening movement. Its face gearing drives the output lever 17 along its circumference, so that the output lever 17 mounted in a housing of the door lock 1 rotates like a wheel.
- Fig. 4 shows a section of Fig. 2 and Fig. 3 enlarged, including in particular the output lever 17.
- the output lever 17 is rotated by an opening movement or closing movement of the locking mechanism 9, in which a spur gearing of the locking mechanism 9 arranged on the top side at least over a certain Angle range understands the movement of a wheel and thus moves the circular circumference of the output lever 17, so that the output lever 17 rolls on the peripheral segment of the locking mechanism 9.
- the cam 21 pushes the projection 23, which in turn is fixed to the driver lever 19. This means that the driving lever 19 also rotates.
- FIG. 5 shows a vehicle 3 with a door lock 1 according to FIGS. 2 to 4.
- the locking element 7 is arranged on a body of the vehicle 3.
- the rotary latch 5 and the locking mechanism 9 and the wedge system 11 and the output lever 17 and the driving lever 19, on the other hand, are all arranged on a door of the vehicle 3.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023577305A JP2024523031A (ja) | 2021-06-18 | 2022-04-29 | 騒音発生を軽減した車両用のドアロック |
KR1020237042273A KR20240005898A (ko) | 2021-06-18 | 2022-04-29 | 소음 발생을 감소시킨 차량용 도어 잠금 장치 |
EP22726656.6A EP4355966A1 (de) | 2021-06-18 | 2022-04-29 | Türschloss für ein fahrzeug mit reduzierter geräuschentwicklung |
CN202280042983.8A CN117500992A (zh) | 2021-06-18 | 2022-04-29 | 降低噪音的车辆门锁 |
US18/570,684 US20240229522A1 (en) | 2021-06-18 | 2022-04-29 | Door lock for a vehicle, with reduced noise generation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021003155.5 | 2021-06-18 | ||
DE102021003155.5A DE102021003155A1 (de) | 2021-06-18 | 2021-06-18 | Türschloss für ein Fahrzeug mit reduzierter Geräuschentwicklung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022263048A1 true WO2022263048A1 (de) | 2022-12-22 |
Family
ID=81854597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/061566 WO2022263048A1 (de) | 2021-06-18 | 2022-04-29 | Türschloss für ein fahrzeug mit reduzierter geräuschentwicklung |
Country Status (7)
Country | Link |
---|---|
US (1) | US20240229522A1 (de) |
EP (1) | EP4355966A1 (de) |
JP (1) | JP2024523031A (de) |
KR (1) | KR20240005898A (de) |
CN (1) | CN117500992A (de) |
DE (1) | DE102021003155A1 (de) |
WO (1) | WO2022263048A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3927445A1 (de) * | 1989-08-19 | 1991-02-21 | Kiekert Gmbh Co Kg | Kraftfahrzeug-tuerverschluss |
DE102008010002A1 (de) * | 2008-02-19 | 2009-10-01 | BÖCO Böddecker & Co. GmbH & Co. KG | Vorrichtung zur Verriegelung zweier Fahrzeugteile aneinander |
DE102017205656A1 (de) | 2016-12-22 | 2018-06-28 | Witte Automotive Gmbh | Schloss, insbesondere Rückenlehnen- oder Heckklappenschloss |
-
2021
- 2021-06-18 DE DE102021003155.5A patent/DE102021003155A1/de active Pending
-
2022
- 2022-04-29 CN CN202280042983.8A patent/CN117500992A/zh active Pending
- 2022-04-29 US US18/570,684 patent/US20240229522A1/en active Pending
- 2022-04-29 KR KR1020237042273A patent/KR20240005898A/ko unknown
- 2022-04-29 EP EP22726656.6A patent/EP4355966A1/de active Pending
- 2022-04-29 WO PCT/EP2022/061566 patent/WO2022263048A1/de active Application Filing
- 2022-04-29 JP JP2023577305A patent/JP2024523031A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3927445A1 (de) * | 1989-08-19 | 1991-02-21 | Kiekert Gmbh Co Kg | Kraftfahrzeug-tuerverschluss |
DE102008010002A1 (de) * | 2008-02-19 | 2009-10-01 | BÖCO Böddecker & Co. GmbH & Co. KG | Vorrichtung zur Verriegelung zweier Fahrzeugteile aneinander |
DE102017205656A1 (de) | 2016-12-22 | 2018-06-28 | Witte Automotive Gmbh | Schloss, insbesondere Rückenlehnen- oder Heckklappenschloss |
Also Published As
Publication number | Publication date |
---|---|
US20240229522A1 (en) | 2024-07-11 |
JP2024523031A (ja) | 2024-06-25 |
EP4355966A1 (de) | 2024-04-24 |
CN117500992A (zh) | 2024-02-02 |
DE102021003155A1 (de) | 2022-12-22 |
KR20240005898A (ko) | 2024-01-12 |
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