WO2017012728A1 - Safety device for a vehicle door handle - Google Patents
Safety device for a vehicle door handle Download PDFInfo
- Publication number
- WO2017012728A1 WO2017012728A1 PCT/EP2016/059969 EP2016059969W WO2017012728A1 WO 2017012728 A1 WO2017012728 A1 WO 2017012728A1 EP 2016059969 W EP2016059969 W EP 2016059969W WO 2017012728 A1 WO2017012728 A1 WO 2017012728A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blocking
- wall
- activation
- safety device
- interception
- Prior art date
Links
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
- E05B77/04—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision
- E05B77/06—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision by means of inertial forces
Definitions
- the safety device comprising:
- an activation element intended to activate a latch by rotating with respect to a bracket around an activation axis from an initial position to a final position, wherein a collision on the bracket along a collision direction may cause the activation element to rotate from its initial position to its final position
- a blocking element intended, as a result of the collision, to rotate with respect to the bracket around a blocking axis, from a disengaged position in which the blocking element allows the activation element to reach its final position, to a blocking position in which the blocking element is intended to block the activation element at a blocked position located between the initial position and the final position.
- the blocking element comprises an inertial mass and a blocking part, wherein the blocking part is configured to intercept an oblique stop of the activation element during a collision.
- the arrangement of the stop corresponds exactly to the one of the blocking part which is disadvantageous in case of delays between the movements of the blocking element and of the activation element. Indeed, the blocking element and the activation element need to be more finely tuned in respect to their shape, mass and cinematic to be synchronized such that the blocking element is not too late to efficiently block the activation element.
- An object of the invention is to propose a safety device comprising a blocking element and an activation element that are finely tuned in respect to their shape, mass and cinematic to be synchronized for an efficient blocking of the activation element, by enabling an early interlocking of the activation element with the blocking part of the blocking element.
- the invention proposes a safety device for a vehicle door handle, the device comprising: - an activation element configured to activate a latch by rotating around an activation axis from an initial position to a final position, wherein a collision on the safety device along a collision direction may cause the activation element to rotate from its initial position to its final position,
- a blocking element configured, as a result of the collision, to rotate around a blocking axis, from a disengaged position in which the blocking element allows the activation element to reach its final position, to a blocking position in which the blocking element is intended to block the activation element at a blocked position located between the initial position and the final position,
- the activation element comprises a receiving part
- the blocking element comprises a blocking part configured to interact with the receiving part in the blocking position and to be moved away from the receiving part in the disengaged position
- the receiving part comprises a first and a second interception walls and a blocking wall connected to the second interception wall, the first and the second interception walls being defined each by a plane surface, the planes of the two surfaces being secants,
- the blocking part cooperates successively with the first interception wall, the second interception wall and the blocking wall.
- the receiving part of the lever of the invention comprises two interception walls extending according to two secant planes. This aspect enables on one hand an early interaction of the receiving part of the activation element with the blocking part of the blocking element.
- the interception walls enable to limit the opening stroke of the activation element.
- the blocking wall has a circular shape centered on the activation axis, the blocking wall having a tangent plane at a junction with the first interception wall;
- the first interception wall forms with the blocking wall or with the tangent plane, a blocking angle
- the second interception wall forms with the first interception wall, an interception angle superior to the blocking angle
- the interception angle is inferior to 180°
- the blocking angle is inferior to about 90°; and/or - a projection of the second interception wall forms with a projection of the blocking wall or with the tangent plane, a general angle comprised between about 45° and 90°; and/or
- a radius from the activation axis crosses a projection of the second interception wall and a projection of the blocking surface or the tangent plane
- the radius forms with the blocking surface or with the tangent plane , a receiving angle inferior to about 90°;
- the blocking element comprises an inertial mass and is configured to block the activation element in the blocked position when the device is subject to inertial forces;
- the blocking element comprises a retaining lug configured to engage a retaining part so as to maintain the blocking element in the blocking position after the collision;
- the invention further relates to a handle comprising a safety device according to any of the preceding claims, and a handle grip comprising a gripping part and a column projecting from the gripping part, and the column cooperates with activation element so as to trigger the unlatching of the vehicle door.
- the handle grip is rotatably mounted about a grip axisand/or
- the grip axis is substantially parallel to the blocking axis
- the grip axis is substantially perpendicular to the activation axis.
- FIG. 1 A is a space view of the safety device according to a first embodiment of the invention cooperating with a handle grip, in which the blocking element is in the blocking position;
- FIG. 1 - figure IB is an enlarged portion of the device of figure 1 A, but in which the blocking element is in the unblocking position;
- - figure 2 is a plane view of the activation element of the safety device of the invention
- - figure 3 is a close view of the safety device of the invention showing the blocking part interacting with the receiving part;
- FIG. 8 is a space view of the safety device according to a second embodiment of the invention.
- the safety device of the invention is configured to be mounted in a handle.
- the handle generally comprises a handle grip 1 of a longitudinal shape.
- the handle grip 1 is movably mounted and configured to be actuated, for example pulled outwardly from the vehicle, to unlatch a vehicle door and open the door.
- the handle grip 1 comprises a gripping part 12 and a column 1 1 projecting from the gripping part 1.
- the column 11 is configured to cooperate with an activation element 2 placed inside the vehicle door.
- the activation element 2 in turn cooperates with a latch of the vehicle so as to unlatch the vehicle door.
- the activation element 2 is rotationally mounted about an activation axis 20, between an initial position and a final position.
- the blocked position corresponds to the state of the activation element 2 in figures 1 A, 3 and 8.
- the initial position is shown in figure 4.
- the activation element 2 is configured to actuate the latch so as to unlatch the vehicle door.
- the final position corresponds to a rotation of the activation element 2 about the activation axis 20 towards the right side of figure 2, i.e.: in a clockwise sense.
- the amplitude of rotation depends on the arrangement of the handle parts, and especially the latch connected to the activation element 2. Such amplitude needs only to be sufficient to actuate the latch so as to unlatch the vehicle door.
- the activation element 2 is configured to be driven from the initial position to the final position by the handle grip 1 through the column 11.
- a return system such as a spring, is preferably mounted to urge the activation element 2 toward the initial position (not represented).
- a similar return system is also provided for the handle grip 1 (not represented) to urge the handle grip 1 towards an unlatching position.
- the handle parts may be subject to inertial forces, for example in the case of a collision. In this case the handle grip 1 may actuate the activation element 2 so as to unlatch the vehicle door and result in unwanted openings.
- the safety device comprises a blocking element 3 configured to cooperate with the activation element 2 to block the activation element 2 in the blocked position.
- blocking the activation element 2 in the initial position may include a play of the activation element 2.
- the activation element 2 comprises a receiving part 4 configured to interact with a corresponding part of the blocking element 3 such that the activation element 2 is blocked in the blocked position.
- the receiving part 4 has a concave receiving portion open in a substantially centrifugal direction with respect to the activation axis 20.
- the concave receiving portion is further open in a direction of the movement of the activation element 2 from the initial position to the final position.
- the receiving part 4 comprises separate first 42 and second 41 interception walls and a blocking wall 40, with specific interception angle ⁇ , blocking angle ⁇ , general ⁇ and receiving angle ⁇ detailed below.
- the blocking wall 40 has a circular shape centered on the activation axis 20.
- the blocking wall 40 forms a base closer to the activation axis 20 than the first 42 and the second 41 interception walls.
- the blocking wall 40 could also be substantially planar.
- the second interception wall 41 which is a right lateral wall 41, is connected to and follows the blocking wall 40 so as to form the blocking angle ⁇ .
- the blocking angle ⁇ is measured between the right lateral wall 41 and a tangent plane 40a to the circular blocking wall 40 at the junction between the blocking wall 40 and the right lateral wall 41.
- the blocking angle ⁇ is here of about 86° in the concave receiving portion. More generally, the blocking angle ⁇ is comprised between about 70° and 90°.
- a blocking angle ⁇ inferior to about 90° enables a satisfactory blocking of the activation element 2.
- the right lateral wall 41 is substantially planar, but could also be substantially circular, and preferably convex in the concave receiving portion.
- a planar or convex right lateral wall limits residual opening strokes of the activation element 2 as further detailed below.
- the first interception wall 42 which is an oblique lateral wall 42, is connected to and follows the right lateral wall 41 so as to form the interception angle ⁇ , which is here of about 153° in the concave receiving portion. More generally, the interception angle ⁇ is comprised between about 135° and 180°.
- the oblique lateral wall 42 is substantially planar, but could also be substantially circular.
- the oblique lateral wall 42 is in a plane that forms with the tangent plane 40a, the general angle ⁇ , which is here of about 57° in the concave receiving portion. More generally, the general angle ⁇ is comprised between about 45° and 90°.
- a general angle ⁇ comprised between about 45° and 90° enables a satisfactory early interception of the activation element 2.
- a particular angle a needs to be sufficiently great to avoid that the blocking part 32 is moved out of the receiving portion as a result of accelerations during a collision. Indeed, as seen in figure 2, a wider opening of the first 42 and second 41 interception walls towards the left part of the figure may not be sufficient for the blocking element 3 to block the activation element 2 which is moving towards the right part of the figure, when the device is subject to a collision.
- the particular angle a is defined based on the receiving angle ⁇ formed across the concave retaining portion such that the receiving angle ⁇ is the sum of the particular angle a with the general angle ⁇ ; and the receiving angle ⁇ is inferior or equal to about 90°.
- the blocking element 3 is rotationally mounted about a blocking axis 30, preferably substantially perpendicular to the activation axis 20.
- perpendicular blocking 30 and unlatching 20 axes allow a satisfactory interaction of the activation element 2 with the blocking element 3.
- the blocking element 3 is movably mounted between a blocking position and an unblocking position.
- the blocking position corresponds to the state of the blocking element 3 in figures 1A and 3.
- the unblocking position corresponds to the state of the blocking element 3 in figure IB. In the blocking position, the blocking element 3 cooperates with the activation element
- the blocking element 3 comprises a blocking part 32 configured to interact with the receiving part 4 so as to block the activation element 2 in the blocked position when the blocking element is in the blocking position.
- the blocking part 32 of the blocking element 3 is moved out of the receiving part 4 such that the activation element 2 may move to the final position.
- the blocking part 32 comprises a first face 35 which is an oblique lateral face 35.
- the oblique lateral face 35 configured to cooperate with the oblique lateral wall 42 of the receiving part 4 when the blocking part 32 interacts with the receiving part 4.
- the oblique lateral face 35 is substantially plane and oriented parallel to the oblique lateral wall 42.
- the blocking part 32 further comprises a second face 36, which is a base face 36.
- the base face 36 configured to cooperate with the blocking wall 40 of the receiving part 4 when the blocking part 32 interacts with the receiving part 4.
- the base face 36 is substantially plane and oriented parallel to the blocking wall 40.
- the oblique lateral face 35 crosses the base face 36 at an edge 37 configured to cooperate with the right lateral wall 41 of the receiving part 4 when the blocking part 32 interacts with the receiving part 4.
- the blocking part 32 projects perpendicularly from the blocking axis 30.
- the blocking part 32 has the form of a finger.
- the blocking part 32 comprises a double elbow structure 32a.
- the double elbow structure 32a enables to have the blocking part 32 reach the receiving part 4 in the arrangement of the invention.
- the blocking element 3 generally comprises an inertial mass 31 configured to move the blocking element 3 to the blocking position when the blocking element 3 is subject to inertial forces due to the collision. When the inertial forces decrease, the blocking element 3 may then return to the unblocking position.
- Such an embodiment has the advantage of temporarily blocking the activation element 2 during the collision, and enabling to reuse the safety device after the collision.
- the blocking element may be motorized and actuated when the collision occurs.
- the handle grip 1 is rotationally mounted about a grip axis 10.
- the grip axis 10 is substantially perpendicular to the activation axis 20.
- perpendicular grip 10 and activation 20 axes allow a satisfactory interaction of handle grip 1 and the activation element 2.
- the grip axis 10 is thus substantially parallel to the blocking axis 30.
- such a configuration enables to align the grip member 1 and the blocking element 3 according to a plane perpendicular to the grip 10 and blocking 30 axes, thereby limiting the space requirement of the blocking element 3.
- the interaction between the blocking element 3 and the activation element 2 will now be described in reference to figures 4 to 7B.
- Figures 4 to 7B show relative movements of the blocking part 32 of the blocking element 3 with respect to the activation element 2.
- the activation element 2 is generally in the initial position when there is no collision and the handle grip is not actuated.
- the blocking element 3 is in the unblocking position such that the blocking part 32 is placed out of the retaining part 4 of the activation element 2. This step of the operation is shown in figure 4.
- the handle grip 1 When the collision occurs, inertial forces are applied on the handle parts such that the handle grip 1 may be moved such that the activation element 2 is turned clockwise about the activation axis 20, and triggers an unwanted opening of the door.
- the blocking element 3 is configured to be also actuated due to the same inertial forces and to turn about the blocking axis 30 such that the blocking part 32 is moved towards the receiving part 4. This step of the operation is shown in figure 5.
- the relative movements of the blocking part 32 with respect to the activation element 2 correspond, in figures 4 to 7B, to a combined vertical upward and horizontal leftward displacement of the blocking part 32.
- the vertical upward displacement of the blocking part 32 in figures 4 to 7B actually corresponds to a clockwise rotation of the activation element 2 about the activation axis 20 towards the final position.
- the horizontal leftward displacement of the blocking part 32 in figures 4 to 7B actually corresponds to a rotation of the blocking element 3 about the blocking axis 30 towards the blocking position.
- the oblique lateral face 35 slides on the oblique lateral wall 42, according to the illustration of figures 6A and 6B.
- the activation element 2 actually undergoes a little residual unlatching stroke of rotation about the activation axis 20, i.e. a little clockwise rotation in figures 4 to 7B.
- This unlatching stroke actually corresponds to the vertical upward displacement of the blocking part 32 in figures 4 to 6B.
- the edge 37 of the blocking part 32 slides on the right lateral wall 41.
- the base face 36 then rests on the blocking wall 40 as shown in figures 7A and 7B.
- the activation element 2 stops any further unlatching stroke of rotation about the activation axis 20, because the vertical upward displacement of the blocking part 32 is stopped.
- the blocking element 3 can comprise the inertial mass 31 and a retaining lug 33 configured to engage a retaining part 34 so as to maintain the blocking element 3 in the blocking position.
- Such an embodiment has the advantage of maintaining the blocking element in a blocking position of the bolt so as to avoid rebounds of the blocking element 3 due to variations of inertial forces during a collision, which would lead to an unwanted opening of the door.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018502798A JP6758366B2 (en) | 2015-07-20 | 2016-05-04 | Safety device attached to vehicle door handle |
MX2018000888A MX2018000888A (en) | 2015-07-20 | 2016-05-04 | Safety device for a vehicle door handle. |
CN201680039636.4A CN107735540B (en) | 2015-07-20 | 2016-05-04 | Safety device for door handle |
BR112017028603-3A BR112017028603B1 (en) | 2015-07-20 | 2016-05-04 | SAFETY DEVICE FOR A CAR DOOR HANDLE AND HANDLE INCLUDING A SAFETY DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15177514.5A EP3121354B1 (en) | 2015-07-20 | 2015-07-20 | Safety device for a vehicle door handle |
EP15177514.5 | 2015-07-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017012728A1 true WO2017012728A1 (en) | 2017-01-26 |
Family
ID=53673852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/059969 WO2017012728A1 (en) | 2015-07-20 | 2016-05-04 | Safety device for a vehicle door handle |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3121354B1 (en) |
JP (1) | JP6758366B2 (en) |
CN (1) | CN107735540B (en) |
BR (1) | BR112017028603B1 (en) |
MX (1) | MX2018000888A (en) |
WO (1) | WO2017012728A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210156179A1 (en) * | 2018-04-17 | 2021-05-27 | U-Shin Italia S.P.A. | Vehicle door assembly |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11078689B2 (en) | 2017-11-10 | 2021-08-03 | Brose Schliesssysteme Gmbh & Co. Kg | Motor vehicle lock |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1128004A2 (en) * | 2000-02-22 | 2001-08-29 | Valeo Sicurezza Abitacolo S.p.A. | Vehicle door handle |
WO2008068261A1 (en) * | 2006-12-06 | 2008-06-12 | Valeo S.P.A. | Vehicle handle with a security device |
EP2325419A2 (en) * | 2009-11-18 | 2011-05-25 | Huf Hülsbeck & Fürst GmbH & Co. KG | Safety door handle |
US20140145454A1 (en) * | 2012-11-28 | 2014-05-29 | Huf North America Automotive Parts Mfg. Corp. | Vehicular Door Handle Assembly With Inertial Secondary Catch Position |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007535627A (en) * | 2004-04-30 | 2007-12-06 | インティアー オートモーティヴ クロージャーズ インコーポレイテッド | Rotary locking mechanism for outer door handle of vehicle |
US8783742B2 (en) * | 2008-03-04 | 2014-07-22 | Kiekert Aktiengesellschaft | Dual-member inertia-activated locking mechanism for vehicle door handle assembly |
-
2015
- 2015-07-20 EP EP15177514.5A patent/EP3121354B1/en active Active
-
2016
- 2016-05-04 MX MX2018000888A patent/MX2018000888A/en unknown
- 2016-05-04 WO PCT/EP2016/059969 patent/WO2017012728A1/en active Application Filing
- 2016-05-04 JP JP2018502798A patent/JP6758366B2/en active Active
- 2016-05-04 CN CN201680039636.4A patent/CN107735540B/en active Active
- 2016-05-04 BR BR112017028603-3A patent/BR112017028603B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1128004A2 (en) * | 2000-02-22 | 2001-08-29 | Valeo Sicurezza Abitacolo S.p.A. | Vehicle door handle |
WO2008068261A1 (en) * | 2006-12-06 | 2008-06-12 | Valeo S.P.A. | Vehicle handle with a security device |
EP2325419A2 (en) * | 2009-11-18 | 2011-05-25 | Huf Hülsbeck & Fürst GmbH & Co. KG | Safety door handle |
US20140145454A1 (en) * | 2012-11-28 | 2014-05-29 | Huf North America Automotive Parts Mfg. Corp. | Vehicular Door Handle Assembly With Inertial Secondary Catch Position |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210156179A1 (en) * | 2018-04-17 | 2021-05-27 | U-Shin Italia S.P.A. | Vehicle door assembly |
US11591831B2 (en) * | 2018-04-17 | 2023-02-28 | U-Shin Italia S.P.A. | Vehicle door assembly |
Also Published As
Publication number | Publication date |
---|---|
CN107735540B (en) | 2019-11-12 |
JP6758366B2 (en) | 2020-09-23 |
BR112017028603B1 (en) | 2022-09-27 |
BR112017028603A2 (en) | 2018-09-04 |
EP3121354A1 (en) | 2017-01-25 |
CN107735540A (en) | 2018-02-23 |
JP2018522152A (en) | 2018-08-09 |
EP3121354B1 (en) | 2017-09-27 |
MX2018000888A (en) | 2018-05-15 |
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