WO2019175502A1 - Colonne de direction comportant un dispositif de blocage en rotation actionné par une motorisation - Google Patents
Colonne de direction comportant un dispositif de blocage en rotation actionné par une motorisation Download PDFInfo
- Publication number
- WO2019175502A1 WO2019175502A1 PCT/FR2019/050544 FR2019050544W WO2019175502A1 WO 2019175502 A1 WO2019175502 A1 WO 2019175502A1 FR 2019050544 W FR2019050544 W FR 2019050544W WO 2019175502 A1 WO2019175502 A1 WO 2019175502A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steering column
- axial
- column according
- ring
- front shaft
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/181—Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
- B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
- B60R25/0215—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
- B60R25/02156—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids comprising a locking member axially moved along the steering column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
- B62D1/195—Yieldable supports for the steering column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/20—Land vehicles
- F16C2326/24—Steering systems, e.g. steering rods or columns
Definitions
- Steering column comprising a rotational locking device actuated by a motorisation
- the present invention relates to a motor vehicle steering column comprising a rotational locking antitheft system, and a control method of this steering column.
- Motor vehicles comprise a steering column generally comprising a front upper shaft receiving at its front end a steering wheel, rotatably connected to a lower shaft which drives a steering box effecting the pivoting of the front wheels steering the vehicle.
- the two telescopic shafts can slide axially between them to ensure a depth adjustment of the steering wheel position within a first adjustment range forming an axial stroke of the flywheel from its most forward position.
- the sliding also ensures, during an impact on the front of the vehicle, a possibility of driving the upper shaft along a second damping range coming after the first range, in order to achieve a damping absorbing an energy limiting the driver's effort on an airbag in the steering wheel, called the English airbag.
- the steering columns comprise a rotational locking antitheft system providing a locking of a shaft of the column which is activated automatically when the ignition key is removed, comprising a bolt connected to the support of the column, sliding to enter. in an opening formed on a locking ring fixed around a shaft of the column to ensure its locking in rotation.
- the bolt can be actuated by an electric motor driven by the breaking of the contact.
- a known locking system presented in particular by the documents FR-A1 -2861673 and EP-A1-0 0918000, comprises a friction device mounted between the bolt housing and the shaft for the first document, or between the column support and a sliding sleeve receiving axial immobilization ribs arranged on the shaft for the second document, giving a possibility of sliding in rotation around this shaft above a predefined torque.
- the predefined sliding torque is between 100 Nm and 200 Nm, it is preferably 150 Nm.
- this assembly is cumbersome in both diameter and axial length, and has a high mass and a significant cost.
- the engine engagement command given by the vehicle's on-board system and the operation of this engine must be fully secured to prevent unintentional blocking while driving the vehicle, which complicates this system.
- the present invention is intended to avoid these disadvantages of the prior art.
- a steering column for a motor vehicle comprising two telescopic control shafts connected in rotation, allowing axial sliding of a front shaft supporting a steering wheel, successively following from the most forward position a first range of in-depth adjustment of the position of this steering wheel, then a second beach damping device used in the event of an accident to dampen a shock of the driver on the steering wheel, this column comprising an electric motor for sliding control, and an anti-theft locking device blocking the rotation of one of the shafts, being remarkable in that the rotational locking device is automatically engaged for an axial locking position of the front shaft given by the operator in the second damping range.
- An advantage of this steering column is that after cutting off the contact, using the existing operator to perform the axial sliding of the front shaft to dispose it in the axial locking position which is outside the first range adjustment used for the pipes of the vehicle, it avoids the implementation of a second motor to actuate the locking system which reduces the size, weight and costs of the steering column.
- the steering column according to the invention may further comprise one or more of the following features, which may be combined with one another.
- the axial locking position of the front shaft is disposed before the end of the stroke of the second damping range.
- the locking system has gone through the axial blocking position without remaining in it, which keeps the operational direction to continue. to maneuver the vehicle if necessary, as required by certain regulations.
- the rotational locking device comprises an inner ring having axial teeth on its outer contour, which engage between teeth arranged in an outer ring.
- This locking system is simple to perform.
- the axial teeth of the inner ring and the outer ring have axially points on the side of the engagement on the other ring.
- the inner ring and the outer ring axially have a tip protruding axially from the other points on the side of the engagement on the other ring.
- the rotational locking device comprises a rotational sliding system limiting the torque transmitted by this device.
- the sliding system comprises an elastic ring forming crenellations, disposed between one of the rings and the part supporting it.
- the rotational locking device comprises an axial fuse system which can break in the event of an accident under the effect of an axial force when two parts of the rotational locking device come into contact during the displacement. of the front shaft in the second damping range.
- the axial fuse system may comprise resilient clips made of plastic, maintaining at least one of the rings axially.
- the rotational locking device may comprise an inner ring fixed on a rear shaft, and an outer ring fixed inside a guide tube providing guidance of the front shaft.
- the invention furthermore relates to a control method of a steering column comprising any one of the preceding characteristics, which controls the electric motorization systematically after a cutoff of the vehicle contact to arrange the front shaft in its axial position. locking in rotation.
- FIG. 1 and 2 respectively show in perspective with partial cutaway and in axial section along a vertical plane, a steering column according to the invention
- FIG. 3 is a partial enlargement of this axial section
- FIG. 4 is a partial enlargement of this perspective view
- - Figure 5 is an exploded view of the rear shaft with the inner locking ring
- FIGS. 7a, 7b, 7c and 7d show, in axial section, this steering column arranged successively in the position prior to adjustment, in the rear adjusting position, in the locking position and in the fully depressed position after an accident. .
- FIGS. 1 and 2 show a fixed steering column support 4 equipped with upper lugs provided for attachment under a cross member of the vehicle dashboard, linked to a movable support 2 by a pivot of transverse axis 26 to allow adjustment in height of the steering wheel.
- the movable support 2 forms a closed housing including inside, on the rear side indicated by the arrow AR, a rear ball bearing 6 for guiding a rear shaft 8 disposed along a main axis forming a longitudinal direction.
- the rear shaft 8 wedged axially in the movable support 2 by the rear ball bearing 6, has at its rear end a universal joint 10 to a shaft of the steering column, connecting it to a steering box of the vehicle.
- a front sliding tube 12 guided in a bore of the mobile support 2 allowing axial sliding comprises at its front end a front rolling bearing 14 receiving a front shaft 16 of the steering column, which is wedged axially on the sliding tube by this front bearing.
- the front shaft 16 is free to rotate in the sliding tube 12, but drives the tube when it slides along its axis.
- the front shaft 16 is formed by a tube comprising at its front end outer splines 18 for fixing a steering wheel, and a rear length of the inner splines 20 engaged on outer splines 22 formed around the rear shaft 8 to ensure the connection in rotation.
- An electric motor 30 having an axis perpendicular to the longitudinal axis, drives a gear reducer 32 forming a bevel gear, which in turn drives a screw 34 disposed under the movable support 2, parallel to the main axis.
- a carriage 36 comprising a nut engaged in the screw 34, drives by a curved metal blade 28 the sliding tube 12 which is fixed to this blade by screws 24.
- the curved metal blade 28 disposed parallel to the longitudinal axis, has a curvature 180 ° so as to have its two ends one below the other, which are linked to one carriage 36 and the other to sliding tube 12. This provides a rigid axial connection between the carriage 36 and the sliding tube 12 to make the adjustments in depth of the steering wheel.
- the screw-nut connection of the screw 34 and the nut of the carriage 36 has an irreversible kinematics, an axial thrust on the nut does not cause rotation of the screw through a sufficiently small pitch of this screw to avoid any adjustment of the position in depth of the steering wheel if the driver applies an axial force on it.
- an inclination of the thread relative to the axis of the screw 34 between 8 and 20 degrees, which is preferably 12 degrees.
- the rear shaft 8 supports an inner locking ring 40 equipped on its contour with axial teeth, and the sliding tube 12 an outer locking ring 50 fitted inside corresponding axial teeth, which in a defined axial position of this tube presented in FIG. 7c, are engaged one inside the other in order to immobilize anti-theft rotation of the steering.
- Figures 3, 4, 5 and 6 show the outer ring 50 rigidly fixed in the rear part of the sliding tube 12, comprising inside a succession of axial teeth each terminating in a point 48 facing rearwardly.
- the inner ring 40 flexibly attached to the rear shaft 8, has on the outside a succession of axial teeth each terminating in a point 48 facing forward, so as to engage the teeth of the outer ring 50 by axial sliding.
- An elastic ring 42 made of elastomer has a contour forming a series of slots, having on the inside of the recesses receiving corresponding axial teeth 60 formed around the rear shaft 8, and on the outside of the recesses receiving corresponding axial teeth 46 formed in the inner ring 40.
- the inner diameter of the teeth of the outer ring 50 is larger than the outer diameter of the teeth of the inner ring 40.
- the elastic ring 42 is made of an elastomer having a glass transition temperature of between -80 ° C. and + 30 ° C., which is preferably close to -40 ° C.
- a material of the thermoplastic elastomer type an ethylene-propylene-diene monomer "EPDM”, a butadiene-acrylonitrile “NBR”, a hydrogenated butadiene-acrylonitrile "HBNR”, or a silicone.
- the rear tips 48 on the axial teeth of the outer ring 50 and the front tips of the inner ring 40 facilitate the introduction of the teeth of this outer ring between those of the inner ring when the front shaft 8 moves back.
- each ring 40, 50 having an extension facing the other ring of approximately 0.5 to 3 mm, preferably 1 mm, which is slightly angularly offset, so as to prepare a engagement of the rest of the teeth by a small angular rotation if necessary.
- This small rotation is made possible by the deformable nature of the elastic ring 42, which allows a small rotation of the ring inner 40 around the rear shaft 8 so that the teeth of the two rings 40, 50 can cooperate together without blocking.
- An open elastic clip 44 is fixed in a groove of the rear shaft 8 on each side of the inner ring 40, to maintain the axial position of this ring and the elastic ring 42.
- FIGS. 7a and 7b respectively show the maximum position before A and the maximum rearmost position B of the steering wheel, achieved by the engine 30 as part of the normal driving of the vehicle, with a setting range PR between these two maximums, which is usually 30 to 50mm.
- FIG. 7c shows a locking position C systematically arranged at each stop of the vehicle by the motor 30, after the driver has cut off the contact, by moving back the guide tube 12 so as to align the outer ring 50 with the inner ring 40 after committing their teeth to each other.
- a directional lock is achieved by using the actuator 30 and its already existing control circuit for adjusting the depth of the steering wheel.
- the locking position C being significantly backward relative to the adjustment range PR in depth of the steering wheel, frees a space in front of the steering wheel which facilitates the entry or exit of the driver in the vehicle.
- FIG. 7d shows an accident position D obtained from a position in the adjustment range PR, where the driver has applied a large amount of force to the steering wheel which deforms by completely unrolling the curved metal blade 28, in order to arrange the tube of guide 12 in rear stop after having traveled the damping range PA coming after this adjustment range.
- the outer ring 50 is passed over the inner ring 40 to go behind it without being blocked by this inner ring, which makes completely free direction in order to meet certain regulatory requirements imposing in this case a maneuver possible steering with the steering wheel.
- the mounting of the inner ring 40 may comprise an axial force fuse, comprising for example elastic clips 44 made of plastic material, allowing a rupture under the effect of an impact in case of accident a complete decline of the front shaft 16 in the case where the teeth of the two rings 40, 50 abut one another without being able to align angularly to allow the passage.
- any other arrangement of the rings 40, 50 may be used.
- a sufficiently high torque threshold preferably of the order of 150 Nm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering Controls (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112019001377.7T DE112019001377T5 (de) | 2018-03-16 | 2019-03-13 | Lenksäule mit einer durch eine Motorisierung betätigten Drehsperrvorrichtung |
BR112020018843-3A BR112020018843A2 (pt) | 2018-03-16 | 2019-03-13 | Coluna de direção com dispositivo de bloqueio em rotação para um veículo motorizado e método de controle da mesma |
CN201980019615.XA CN111867918A (zh) | 2018-03-16 | 2019-03-13 | 包括用于阻挡转动的电动装置的转向柱 |
JP2020549680A JP7314162B2 (ja) | 2018-03-16 | 2019-03-13 | 駆動装置によって作動される回転ブロック装置を備えるステアリングコラム |
US16/981,468 US11370474B2 (en) | 2018-03-16 | 2019-03-13 | Steering column including a rotational blocking device actuated by a motorization |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR18/52263 | 2018-03-16 | ||
FR1852263A FR3078940B1 (fr) | 2018-03-16 | 2018-03-16 | Colonne de direction comportant un dispositif de blocage en rotation actionne par une motorisation |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019175502A1 true WO2019175502A1 (fr) | 2019-09-19 |
Family
ID=62017571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2019/050544 WO2019175502A1 (fr) | 2018-03-16 | 2019-03-13 | Colonne de direction comportant un dispositif de blocage en rotation actionné par une motorisation |
Country Status (7)
Country | Link |
---|---|
US (1) | US11370474B2 (fr) |
JP (1) | JP7314162B2 (fr) |
CN (1) | CN111867918A (fr) |
BR (1) | BR112020018843A2 (fr) |
DE (1) | DE112019001377T5 (fr) |
FR (1) | FR3078940B1 (fr) |
WO (1) | WO2019175502A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020105625A1 (de) | 2020-03-03 | 2021-09-09 | Thyssenkrupp Ag | Lenksäule für ein Kraftfahrzeug |
US20220048556A1 (en) * | 2019-03-14 | 2022-02-17 | Mando Corporation | Vehicle steering column |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017120669A1 (de) * | 2017-09-07 | 2019-03-07 | Trw Automotive Gmbh | Lenksäulenbaugruppe für ein Kraftfahrzeug sowie Lenkungssystem |
FR3099454B1 (fr) * | 2019-07-31 | 2021-07-09 | Jtekt Europe Sas | Chariot d’entrainement d’un système de direction d’un véhicule permettant un déplacement d’une pièce de cache identique au déplacement d’un tube mobile lors d’un réglage en profondeur et lors d’un accident. |
JP2021146841A (ja) * | 2020-03-18 | 2021-09-27 | 株式会社アイシン | 車両盗難防止装置 |
DE102022110314A1 (de) * | 2022-04-28 | 2023-11-02 | Schaeffler Technologies AG & Co. KG | Bedieneinheit zur Beeinflussung einer Fahrrichtung eines Kraftfahrzeugs durch einen Benutzer |
EP4279357A1 (fr) * | 2022-05-20 | 2023-11-22 | thyssenkrupp Presta Aktiengesellschaft | Système de direction pour un véhicule automobile |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0499001A1 (fr) * | 1991-01-29 | 1992-08-19 | Valeo Securite Habitacle | Dispositif de commande de verrouillage de direction pour un appareil de blocage de la colonne de direction |
EP0918000A1 (fr) | 1997-11-19 | 1999-05-26 | Valeo Securite Habitacle | Antivol pour un arbre de colonne de direction de véhicule automobile |
FR3023243A1 (fr) * | 2014-07-07 | 2016-01-08 | Peugeot Citroen Automobiles Sa | Colonne de direction pour vehicule automobile comportant deux parties compressibles maintenues par des clavettes |
DE102016111473A1 (de) * | 2015-06-25 | 2016-12-29 | Steering Solutions Ip Holding Corporation | Stationäre lenkradbaugruppe und verfahren |
Family Cites Families (15)
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JPH0288346A (ja) * | 1988-09-27 | 1990-03-28 | Aisin Seiki Co Ltd | ステアリングロック装置 |
US4903511A (en) * | 1989-06-26 | 1990-02-27 | General Motors Corporation | Anti-theft steering shaft lock |
DE69108221T2 (de) * | 1991-01-29 | 1995-10-12 | Aisin Seiki | Lenkschlossvorrichtung. |
FR2861673B1 (fr) | 2003-11-05 | 2007-06-29 | Nacam | Dispositif de blocage en rotation a limitation de couple d'une colonne de direction de vehicule automobile |
JP2007030527A (ja) * | 2005-02-17 | 2007-02-08 | Nsk Ltd | ステアリングホイールの電動式位置調節装置 |
JP2009096427A (ja) | 2007-10-19 | 2009-05-07 | Jtekt Corp | ステアリング装置 |
JP2009298229A (ja) | 2008-06-11 | 2009-12-24 | Aisin Seiki Co Ltd | 車両のステアリング構造 |
JP5229551B2 (ja) | 2008-08-29 | 2013-07-03 | 株式会社ジェイテクト | 車両用操舵装置 |
EP2186693A1 (fr) * | 2008-11-14 | 2010-05-19 | Gussi Marine Products AB | Structure de connexion de volant amovible |
JP5338834B2 (ja) | 2011-03-24 | 2013-11-13 | 日本精工株式会社 | ステアリングロック装置 |
EP2740647B1 (fr) * | 2011-07-26 | 2018-09-05 | NSK Ltd. | Colonne de direction et son procédé de fabrication et dispositif de direction utilisant ladite colonne de direction |
US9616848B2 (en) * | 2015-08-14 | 2017-04-11 | Steering Solutions Ip Holding Corporation | Locking assembly for vehicle steering column and method of manufacturing |
US10421476B2 (en) * | 2016-06-21 | 2019-09-24 | Steering Solutions Ip Holding Corporation | Self-locking telescope actuator of a steering column assembly |
DE102017201594B4 (de) * | 2017-02-01 | 2018-12-13 | Thyssenkrupp Ag | Motorisch verstellbare Lenksäule für ein Kraftfahrzeug |
KR102018599B1 (ko) * | 2018-01-26 | 2019-11-04 | 이래에이엠에스 주식회사 | 스티어링 칼럼 어셈블리 |
-
2018
- 2018-03-16 FR FR1852263A patent/FR3078940B1/fr active Active
-
2019
- 2019-03-13 WO PCT/FR2019/050544 patent/WO2019175502A1/fr active Application Filing
- 2019-03-13 US US16/981,468 patent/US11370474B2/en active Active
- 2019-03-13 JP JP2020549680A patent/JP7314162B2/ja active Active
- 2019-03-13 CN CN201980019615.XA patent/CN111867918A/zh active Pending
- 2019-03-13 BR BR112020018843-3A patent/BR112020018843A2/pt not_active Application Discontinuation
- 2019-03-13 DE DE112019001377.7T patent/DE112019001377T5/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0499001A1 (fr) * | 1991-01-29 | 1992-08-19 | Valeo Securite Habitacle | Dispositif de commande de verrouillage de direction pour un appareil de blocage de la colonne de direction |
EP0918000A1 (fr) | 1997-11-19 | 1999-05-26 | Valeo Securite Habitacle | Antivol pour un arbre de colonne de direction de véhicule automobile |
FR3023243A1 (fr) * | 2014-07-07 | 2016-01-08 | Peugeot Citroen Automobiles Sa | Colonne de direction pour vehicule automobile comportant deux parties compressibles maintenues par des clavettes |
DE102016111473A1 (de) * | 2015-06-25 | 2016-12-29 | Steering Solutions Ip Holding Corporation | Stationäre lenkradbaugruppe und verfahren |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220048556A1 (en) * | 2019-03-14 | 2022-02-17 | Mando Corporation | Vehicle steering column |
US11827268B2 (en) * | 2019-03-14 | 2023-11-28 | Hl Mando Corporation | Vehicle steering column |
DE102020105625A1 (de) | 2020-03-03 | 2021-09-09 | Thyssenkrupp Ag | Lenksäule für ein Kraftfahrzeug |
Also Published As
Publication number | Publication date |
---|---|
US11370474B2 (en) | 2022-06-28 |
BR112020018843A2 (pt) | 2020-12-29 |
FR3078940A1 (fr) | 2019-09-20 |
JP2021518299A (ja) | 2021-08-02 |
DE112019001377T5 (de) | 2021-01-14 |
US20210024120A1 (en) | 2021-01-28 |
FR3078940B1 (fr) | 2021-06-18 |
CN111867918A (zh) | 2020-10-30 |
JP7314162B2 (ja) | 2023-07-25 |
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