WO2018096426A1 - Actionneur bidirectionnel - Google Patents

Actionneur bidirectionnel Download PDF

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Publication number
WO2018096426A1
WO2018096426A1 PCT/IB2017/057157 IB2017057157W WO2018096426A1 WO 2018096426 A1 WO2018096426 A1 WO 2018096426A1 IB 2017057157 W IB2017057157 W IB 2017057157W WO 2018096426 A1 WO2018096426 A1 WO 2018096426A1
Authority
WO
WIPO (PCT)
Prior art keywords
actuation
actuation force
transmission
control device
rotational direction
Prior art date
Application number
PCT/IB2017/057157
Other languages
English (en)
Inventor
Ravi Ranjan
Jainendra MISHRA
Shanmugasundram GOVINDASAMY
Vikram KOTHAMACHU
Original Assignee
Kpit Technologies Limited
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 Kpit Technologies Limited filed Critical Kpit Technologies Limited
Priority to JP2019528098A priority Critical patent/JP2020500765A/ja
Priority to EP17822443.2A priority patent/EP3544850A1/fr
Publication of WO2018096426A1 publication Critical patent/WO2018096426A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/02253—Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0296—Central command actuator to selectively switch on or engage one of several special purpose circuits or mechanisms
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes

Definitions

  • the present disclosure generally relates to the field of actuator systems. More particularly, the present disclosure relates to a system for operating one or a plurality of actuation operated features using output from a single actuator and an actuation control device therefor.
  • multiple motors are used to drive various elements.
  • separate motors and solenoids are used to actuate various electrically- driven and automatic features of an automobile.
  • Use of multiple motors for different functions poses a number of difficulties.
  • the use of multiple electromagnetic devices (actuators) increases the automotive vehicle weight and cost. Not only is the cost of manufacturing increased when a multiplicity of electromagnetic devices are used, but the assembly cost, part number proliferation and handling costs, electrical wiring costs, objectionable motor noise, and failure modes are also increased significantly. In addition, it is often difficult to place multiple devices within the small space available.
  • Document GB2153218A discloses an apparatus with a motor connected to the gears on coupling head, which is connected to multiple adjusting devices with the help of flexible shafts. Motion transfer from motor shaft to flexible shaft takes place through an intermediate gear which is meshed with a pinion mounted on the motor shaft. The intermediate shaft is further selectively coupled with various coupling toothed wheels by operating a locating lever. The motion to the coupling toothed wheel is further transferred to actuate various seat movements. Electrical contacts are provided for operating the electric motor, by means of which the electric motor rotates clockwise or anti-clockwise depending on the desired final output motion.
  • US patent number 6,126, 132 discloses a seat track actuator assembly comprising a motor, wherein the output shaft of motor is capable of imparting linear and rotational movements.
  • a spur gear is attached to the output shaft of the motor, which can selectively engage with one of the bevel gears such that external spline on spur gear can mesh with the internal spline on bevel gear.
  • Linear movement of output shaft of motor and an externally splined spur gear fixedly mounted thereon act as a clutching intermittent motion mechanism to selectively couple and uncouple electric motor, and the desired one of the three movement mechanisms through bevel gear train.
  • the device limits the application only to physically nearby outputs.
  • US patent number 5, 103,691 discloses a device for motorized control of a set of elements such as adjustable parts of a vehicle seat, characterized in that it comprises: at least one motor equipped with an output shaft carrying two coaxial worms offset axially on the output shaft and with opposite pitches, these worms forming the input of the device, pairs of wheels meshing with the worms, mutually in pairs, an output shaft traversing each wheel freely and intended to control an associated element at one and/or the other of its opposite ends, on each shaft and facing each wheel, a clutch independent of the other clutches and adapted in order to be able to link the selected shaft in rotation to the corresponding wheel; the wheels, shafts and associated clutches together form a function divider.
  • the solution is limited to four outputs from each actuator. Though it can be connected in series to get more outputs, it limits direct output from each motor. Further, there is no provision for independent direction control and failure in any one engagement will result in failure of complete system. Apart from these drawbacks, the proposed system is suffering from other drawbacks including the system being prone to vibration and noise owing to utilization of straight toothed gear, the system being able to be extended only lengthwise and hence, limits the packaging flexibility and the like.
  • An object of the present invention is to provide a system for operating one or a plurality of actuation operated features using output from a single actuator and to provide an actuation control device therefor.
  • Yet another object of the present invention is to replace multiple actuator system with a single actuator system, while offering the same attributes.
  • a further object of the present disclosure is to provide an actuator system with a flexible packaging in the vicinity or remotely alike.
  • the present disclosure generally relates to the field of actuator systems. More particularly, the present disclosure relates to a system for operating one or a plurality of actuation operated features using output from a single actuator and an actuation control device therefor.
  • An aspect of the present disclosure provides a system for operating one or a plurality of actuation operated features, the system comprising: an actuator; a geartrain configured to transmit an actuation force from the actuator to the one or a plurality of actuation operated features; and at least one actuation control device comprising a plurality of bevel gears, at least one ring operatively coupled to at least one bevel gear of the plurality of bevel gears, and a plurality of locks, wherein selective engagement and/or disengagement of one, some, or all of the plurality of locks effects any or a combination of (a) no transmission of the actuation force from the geartrain to the one or a plurality of actuation operated features, (b) transmission of the actuation force from the geartrain to the one or a plurality of actuation operated features in a rotational direction, same as that of a rotational direction in which the actuation force is input to the at least one actuation control device, and (c) transmission of the actuation
  • locks comprise of, but not limited to, solenoid locks.
  • bevel gears include at least one input gear, at least one intermediate gear and at least one output gear.
  • the at least one ring is operatively coupled to the at least intermediate gear.
  • the system further includes at least one flexible shaft for transmission of the actuation force from the at least one actuation control device to the one or a plurality of actuation operated features.
  • the actuator includes at least one position sensing device configured to detect position of the one or a plurality of actuation operated features.
  • the system is capable of operating a plurality of actuation operated features by transmission of the actuation force from a single actuator.
  • the present disclosure provides an actuation control device for controlling transmission of an actuation force to one or a plurality of actuation operated features, the actuation control device comprising:a plurality of bevel gears, wherein the plurality of bevel gears includes at least one input gear operatively coupled to an input shaft, at least one intermediate gear, and at least one output gear operatively coupled to an output shaft; at least one ring operatively coupled to the at least one intermediate gear; and a plurality of locks, wherein selective engagement and/or disengagement of one, some, or all of the plurality of locks effects any or a combination of (a) no transmission of the actuation force from the input shaft to the output shaft, (b) transmission of the actuation force from the input shaft to the output shaft in a rotational direction, same as that of a rotational direction in which the actuation force is input to the input shaft, and (c) transmission of the actuation force from the input shaft to the output shaft in a rotational direction, opposite to that of the rotation
  • the selective engagement of the first lock and the selective disengagement of the second lock effects the transmission of the actuation force from the input shaft to the output shaft in a rotational direction, same as that of a rotational direction in which the actuation force is input to the input shaft, and wherein the selective disengagement of the first lock and the selective engagement of the second lock effects the transmission of the actuation force from the input shaft to the output shaft in a rotational direction, opposite than that of the rotational direction in which the actuation force is input to the input shaft.
  • the selective disengagement of both the first lock and the second lock of the plurality of locks effects no transmission of the actuation force from the input shaft to the output shaft.
  • the actuation control device is configured to operate a plurality of actuation operated features by transmission of the actuation force from a single actuator.
  • FIG. 1 illustrates an exemplary block diagram depicting a conventional actuation system with dedicated actuator/motor for each function.
  • FIG. 2 illustrates an exemplary block diagram depicting a system with single actuator/motor catering toone or a plurality of actuation operated features, in accordance with implementations of the present disclosure.
  • FIG. 3 illustrates an exemplary view of a system for operating one or a plurality of actuation operated features, in accordance with an implementation of the present disclosure.
  • FIG. 4A through 4D illustrate exemplary views of the actuation control device for controlling transmission of an actuation force to one or a plurality of actuation operated features, in accordance with an implementation of the present disclosure.
  • FIG. 4E illustrates an exemplary exploded view depicting the actuation control device for operating one or a plurality of actuation operated features, in accordance with an implementation of the present disclosure.
  • FIG. 5 illustrates an exemplary view of the actuation control device depicting placement of various components thereof in accordance with an implementation.
  • FIG. 6A and 6B illustrate exemplary views depicting working of the actuation control device realized in accordance with an implementation.
  • FIG. 7A through 7D illustrate exemplary views of the lock in accordance with an implementation.
  • FIG. 7E illustrates an exemplary view depicting activation of the locking mechanism in accordance with an implementation.
  • FIG. 8A through 8D illustrate exemplary views of the lock that utilizes a ratchet and pawl mechanism for selective activation/engagement thereof in accordance with an implementation.
  • FIG. 8E illustrates an exemplary view depicting a cross-sectional view of a lid in association with an outside washer and a disc in accordance with an implementation.
  • FIG. 9 illustrates an exemplary view depicting a conventional system that employs a plurality of actuators (or motors), each associated with corresponding sets of geartrains, to actuate the actuation operated features.
  • FIG. 10 illustrates an exemplary view depicting the system, as realized in accordance with the present disclosure, that employs actuation control devices to actuate one or a plurality of the vehicular seat positioning means using a single actuator (or motor).
  • FIG. 11 illustrates an exemplary exploded view of a system 300 for operating one or a plurality of actuation operated features in accordance with an implementation of the present disclosure.
  • FIG. 12A illustrates an exemplary view depicting vehicle seat positioning system in accordance with an implementation of the present disclosure.
  • FIG. 12B illustrates an exemplary view depicting a position sensing device configured as part of the actuator (motor) in accordance with an implementation of the present disclosure.
  • the present disclosure generally relates to the field of actuator systems. More particularly, the present disclosure relates to a system for operating one or a plurality of actuation operated features using output from a single actuator and an actuation control device therefor.
  • An aspect of the present disclosure provides a system for operating one or a plurality of actuation operated features, the system comprising: an actuator; a geartrain configured to transmit an actuation force from the actuator to the one or a plurality of actuation operated features; and at least one actuation control device comprising a plurality of bevel gears, at least one ring operatively coupled to at least one bevel gear of the plurality of bevel gears, and a plurality of locks, wherein selective engagement and/or disengagement of one, some, or all of the plurality of locks effects any or a combination of (a) no transmission of the actuation force from the geartrain to the one or a plurality of actuation operated features, (b) transmission of the actuation force from the geartrain to the one or a plurality of actuation operated features in a rotational direction, same as that of a rotational direction in which the actuation force is input to the at least one actuation control device, and (c) transmission of the actuation
  • locks comprise of, but not limited to, solenoid locks.
  • bevel gears include at least one input gear, at least one intermediate gear and at least one output gear.
  • the at least one ring is operatively coupled to the at least intermediate gear.
  • the system further includes at least one flexible shaft for transmission of the actuation force from the at least one actuation control device to the one or a plurality of actuation operated features.
  • the actuator includes at least one position sensing device configured to detect position of the one or a plurality of actuation operated features.
  • the system is capable of operating a plurality of actuation operated features by transmission of the actuation force from a single actuator.
  • an actuation control device for controlling transmission of an actuation force to one or a plurality of actuation operated features
  • the actuation control device comprising: a plurality of bevel gears, wherein the plurality of bevel gears includes at least one input gear operatively coupled to an input shaft, at least one intermediate gear, and at least one output gear operatively coupled to an output shaft;at least one ring operatively coupled to the at least one intermediate gear; and a plurality of locks, wherein selective engagement and/or disengagement of one, some, or all of the plurality of locks effects any or a combination of (a) no transmission of the actuation force from the input shaft to the output shaft, (b) transmission of the actuation force from the input shaft to the output shaft in a rotational direction, same as that of a rotational direction in which the actuation force is input to the input shaft, and (c) transmission of the actuation force from the input shaft to the output shaft in a rotational direction, opposite to that
  • the selective engagement of the first lock and the selective disengagement of the second lock effects the transmission of the actuation force from the input shaft to the output shaft in a rotational direction, same as that of a rotational direction in which the actuation force is input to the input shaft, and wherein the selective disengagement of the first lock and the selective engagement of the second lock effects the transmission of the actuation force from the input shaft to the output shaft in a rotational direction, opposite than that of the rotational direction in which the actuation force is input to the input shaft.
  • the selective disengagement of both the first lock and the second lock of the plurality of locks effects no transmission of the actuation force from the input shaft to the output shaft.
  • the actuation control device is configured to operate a plurality of actuation operated features by transmission of the actuation force from a single actuator.
  • FIG. 1 illustrates an exemplary block diagram depicting a conventional actuation system with dedicated actuator/motor for each function.
  • a system requires utilization of multiple motors, denoted as 110, 120, 130 and 140, corresponding to each of the functions (denoted as Function- 1, Function-2, Function-3 and Function-4)they sub-serve, while making use of different worm gear boxes (denoted as 112, 122, 132 and 142).
  • this leads to improper utilization of space giving rise to packaging issues, besides high maintenance costs associated therewith.
  • FIG. 1 illustrates an exemplary block diagram depicting a conventional actuation system with dedicated actuator/motor for each function.
  • FIG. 2 illustrates an exemplary block diagram depicting a system with a single actuator/motor catering to one or a plurality of actuation operated features in accordance with implementations of the present disclosure.
  • the system realized in accordance with implementations of the present disclosure, can make use of multiple flexible shafts (denoted as 208-1, 208-2, 208-3 and 208-4) that can be connected to the actuation control device 204, obviating need of multiple motors as in case of conventional actuation systems.
  • motor 210 on receiving Electric Power Input 206, can transmit the actuation force to the actuation control device 204, which can selectively transfer the actuation force, in accordance with command(s) received from the control switch(es) 202, to one or more flexible shafts connected therewith (denoted as 208-1,208-2,208-3 and208-4).
  • Flexible shaft(s) can then operate one or a plurality of actuation operated features to elicit execution of desired function(s) (denoted as Function- 1 through Function-4) depending upon the state of corresponding worm gear box(es) (denoted as 212-1, 212-2, 212-3 and 212-4).
  • FIG. 3 illustrates an exemplary view of a system300 for operating one or a plurality of actuation operated features in accordance with an implementation of the present disclosure.
  • the system 300 comprises of an actuator318 (e.g. motor), a gear train including a plurality of gears denoted as 302, 302a, 304a, 306a, 308a and 310a, and actuation control device(s) denoted as 304b, 306b, 308b and 310b.
  • the motor 318 is connected to a gear 302 through a shaft.
  • the actuation force(motion) may be transferred to secondary gears (302a, 304a, 306a, 308a and 310a) and then to corresponding actuation control devices (304b, 306b, 308b and 310b).
  • the actuation control devices can have respective output ends denoted as 304c, 306c, 308cand 310c that can be connected to flexible shafts or any other actuation force (motion) transmission means, as known or appreciated by a person reasonably skilled in the art, to operate one or a plurality of actuation operated features.
  • the flexible shaft 312 can include an adapter 314(while other flexible shafts and corresponding adapters are obvious and hence, not shown for the sake of simplicity).
  • the system can be enclosed in a casing/housing.
  • the system comprises of a motor, which elicits the required actuation force to the gears (geartrain),thereby making actuation force available at all outputs (denoted as 304c, 306c, 308c and 310c) at all times when the motor is operated.
  • the actuation control devices may be used to engage, change direction and/or disengage each output individually. In a preferred implementation, all actuation control devices remain normally in the disengaged position and upon receipt of the command, actuation control device(s) corresponding to the actuation operated feature(s)is activated to elicit actuation force in the required direction.
  • the actuator includes at least one position sensing device configured to detect position of the one or a plurality of actuation operated features.
  • the position sensing device detects the operating position/location of the one or a plurality of actuation operated features (e.g. if in response to the actuation force, actuation of the actuation operated feature is elicited or not and particularly, if desired functionality has been achieved or not).
  • the position sensing device is a potentiometer configured as part of the actuator.
  • the potentiometer can be conveniently configured as a separate device that can provide feedback to the actuator and/or the system if in response to the actuation force, the desired functional is performed or not.
  • all movable joints are equipped with at least one potentiometer for feedback.
  • FIG. 4A through 4D illustrate exemplary views of the actuation control device 400 for controlling transmission of an actuation force to one or a plurality of actuation operated features in accordance with an implementation of the present disclosure.
  • the actuation control device 400 includes a plurality of bevel gears, denoted as 406, 408, 410 and 420.
  • gear 406 can act as an input gear
  • gear 408 can act as an intermediate gear
  • gear 410 can act as an output gear.
  • gear 420 can act as a dummy gear and can confer support to other gears.
  • the actuation control device 400 further includes a ring 412, operatively coupled to the intermediate gear 408, and a plurality of locks (denoted as 416 and 418), functions of which are described in detail herein below.
  • locks are solenoid locks.
  • actuation control device 400 further includes a central shaft 402 (which can act as an input shaft), such that one of the secondary gear (for example, 304a)can be connected thereto, for transmitting the actuation force.
  • the shaft 404 can act as an output shaft.
  • FIG. 4E illustrates exemplary exploded view of the actuation control device 400 for controlling transmission of an actuation force to one or a plurality of actuation operated features in accordance with an implementation of the present disclosure.
  • FIG. 5 illustrates an exemplary view of the actuation control device 400 depicting placement of various components thereof in accordance with an implementation.
  • the ring 412 is coupled to the ring cover plate 430 (alternatively and synonymously referred to herein as casing) with help of a plurality of bearings 422 to enable the ring 412 to freely revolve around its central axis.
  • the ring cover plate 430 is provided with one or a plurality of slots or tracks, such that the bearings 422 can be detachably fitted there within, at least in part, so as to maintain a position whereby both the ring 412 and the ring cover plate 430 defines a common centre of axis.
  • FIG. 6A and 6B illustrate exemplary views depicting working of the actuation control device 400,as realized in accordance with an implementation.
  • the actuation force transmitted by the geartrain from an actuator is firstly input to the input shaft 402, coupled to the input gear 406.
  • the ring 412 can rotate about its rotational axis (parallel to the rotational axis of the input shaft 402) and the intermediate gear 408 can rotate about its rotational axis (denoted as 414).
  • lock 416 when lock 416 is selectively brought in the engaged position while maintaining the lock 418 in disengaged position, it results in inhibition of the rotation of intermediate gear 408 on its rotational axis 414, while allowing the ring 412 to rotate along its rotational axis (i.e. intermediate gear 408 rotates along the input gear 406).
  • the activation/engagement of lock 416 and non- activation/disengagement of lock 418 allows the actuation control device 400 to transmit the actuation force (motion) from the geartrain (302, 304a, 306a and 308a) to the actuation operated features (through flexible shaft or other actuation force transmission means) in the same rotational direction in which the actuation force is input to the actuation control device 400.
  • the activation/engagement of lock 418 and non-activation/disengagement of lock 416 allows the actuation control device 400 to transmit the actuation force (motion) from the geartrain (302, 304a, 306a and 308a) to the actuation operated features (through flexible shaft or other actuation force transmission means) in the rotational direction, opposite to the rotational direction in which the actuation force is input to the actuation control device 400.
  • FIG. 7 A through 7D illustrate exemplary views of the lock in accordance with an implementation.
  • FIG. 7 A illustrates an exemplary assembled view of the lock 416 (coupling of the lock 416 with the ring is not shown for clarity) that upon selective engagement/activation inhibits the rotation of intermediate gear 408 on its rotational axis 414.
  • FIG. 7B illustrates an exemplary exploded view of the general locking mechanism depicting placement of bearings 708, drum 706, ring cam 702 and plungers 704 that form part of the lock (416 or 418).
  • FIG. 7C and FIG. 7D illustrate exemplary views of the locks 416 and 418, respectively, with bearings and drum removed for simplicity, in accordance with an implementation.
  • FIG. 7 A illustrates an exemplary assembled view of the lock 416 (coupling of the lock 416 with the ring is not shown for clarity) that upon selective engagement/activation inhibits the rotation of intermediate gear 408 on its rotational axis 414.
  • FIG. 7B illustrates an exemplary exploded view
  • FIG. 7E illustrates an exemplary view depicting activation of the locking mechanism in accordance with an implementation.
  • the plungers 704 upon activation of the ring cam 702 (for example, by rotation thereof), the plungers 704 (with the help of plunger springs 756) are forced to mesh within the profiles/sections 752 defined on the shaft 754, arresting the rotational movement thereof.
  • the ring cam 702 is solenoid actuated cam.
  • this locking mechanism is fitted on the shaft, which defines the intermediate gear 408 as part thereof or which is coupled to the intermediate gear 408 (in which case it is denoted herein as lock 416), activation thereof forces the plungers to mesh within the profiles/sections defined on the shaft arresting the movement of the intermediate gear 408 on its rotational axis 414.
  • this locking mechanism is fitted on the shaft, which defines the spur gear as part thereof or which is coupled to the spur gear (in which case it is denoted herein as lock 418)
  • activation thereof forces the plungers to mesh within the profiles/sections defined on the shaft arresting the movement of the ring 412 along its rotational axis (as the spur gear is in continuous mesh with the ring surface, as illustrated in FIG. 6A and 6B).
  • FIG. 8 A through 8D illustrate exemplary views of the lock 416 that utilizes a ratchet and pawl mechanism for selective activation/engagement thereof in accordance with an implementation.
  • FIG. 8A illustrates an exemplary top view depicting placement of the ratchet and pawl mechanism 802 (pawl denoted as 802-2and ratchet denoted as 802-1) in relation to the ring 412 and the intermediate gear 408 (input gear 406, output gear 410 and dummy gear 420 are not shown for the sake of simplicity).
  • FIG. 8B illustrates an exemplary top view depicting a position of a disc 804, in relation to the ratchet and pawl mechanism 802, the ring 412 and the intermediate gear 408, in accordance with an implementation.
  • FIG. 8C and 8D illustrates exemplary views depicting the placement of the ratchet and pawl mechanism 802 in relation to the ring 412 and intermediate gear 408 (disc 804 is not shown for the sake of simplicity).
  • the ratchet can be fixed to (or defined as an integral part of) the shaft that defines the intermediate gear 408 such that when the disc 804 is pushed, the pawl is meshed with the ratchet, blocking the movement of ratchet and thereby blocking the rotation of intermediate gear on its axis 414.
  • FIG. 8E illustrates an exemplary view depicting a cross- sectional view of a lid 800 in association with an outside washer 806 and a disc 804 (configured as an inside washer) in accordance with an implementation.
  • the disc 804 (configured as an inside washer) is also pushed resulting in meshing of the pawl with the ratchet, blocking the movement of ratchet and hence, blocking the rotation of intermediate gear 408 on its axis 414.
  • FIG. 9 illustrates an exemplary view depicting a conventional system that employs a plurality of actuators (or motors), each associated with the corresponding sets of geartrains, to actuate the actuation operated features.
  • FIG. 10 illustrates an exemplary view depicting the system, realized in accordance with the present disclosure, that employs actuation control devices 400 to actuate one or a plurality of the vehicular seat positioning means using a single actuator (or motor).
  • FIG. 11 illustrates an exemplary exploded view of a system 300 for operating one or a plurality of actuation operated features in accordance with an implementation of the present disclosure.
  • the system 300 can include a motor 318, a gear train (including a plurality of bevel gears), one or a plurality of actuation control devices (generally shown as 304b, 306b, 308b and 310b) and a casing (shown as including a male motor casing 502 and a female motor casing 504) to encapsulate the system there within.
  • the system realized in accordance with implementations of the present disclosure can transmit the actuation force (motion) in the non-parallel and non-concurrent axis as well, offering boundless flexibility in packaging.
  • FIG. 12A illustrates an exemplary view depicting vehicle seat positioning system, the system including: a motorl202, a geartrain (generally shown as 1204), at least one actuation control device (shown as 1206a, 1206b, 1206c, and 1206d) and a plurality of vehicular seat positioning means (shown as 1210, 1220, 1230 and 1240).
  • a motorl202 generally shown as 1204
  • a geartrain generally shown as 1204
  • at least one actuation control device shown as 1206a, 1206b, 1206c, and 1206d
  • a plurality of vehicular seat positioning means shown as 1210, 1220, 1230 and 1240.
  • the actuation control device 1206, as realized in accordance with implementations of the present disclosure, can include a plurality of bevel gears, at least one ring operatively coupled to at least one bevel gear of the plurality of bevel gears, and a plurality of locks to allow for any or a combination of (a) no transmission of actuation force, (b) transmission of actuation force in same rotational direction or (c) transmission of actuation force in opposite rotational direction.
  • locks comprise of solenoid locks.
  • any other types of locks including but not limited to mechanical locks, are completely within the scope of the present disclosure.
  • vehicular seat positioning meansl210 can be transmitted to vehicular seat positioning meansl210, 1220, 1230 and 1240 using a plurality of flexible shafts (shown as 1208a, 1208b, 1208c and 1208d).
  • vehicular seat positioning meansl210 is associated with the function of forward and backward movement (adjustment) of the vehicular seat.
  • vehicular seat positioning meansl220 is associated with the function of lumbar adjustment of the vehicular seat.
  • vehicular seat positioning meansl230 is associated with the function of tilting the seat in forward and backward direction.
  • vehicular seat positioning meansl240 is associated with the function of height adjustment of the seat in the upward and downward direction.
  • the motor 1202 includes at least one position sensing device 1250 configured to detect position of the vehicular seat positioning means (shown as 1210, 1220, 1230 and 1240).
  • the at least one position sensing device can provide feedback to the actuator and/or the system if in response to the actuation force, desired function has been elicited or not (for example, if lumbar adjustment of the vehicular seat is done, if the seat is tilted in forward or backward direction and the likes).
  • the at least one position sensing device is a potentiometer.
  • all of the movable joints are configured with at least one position sensing device.
  • the bi-directional motor mechanism of the proposed invention maybe used in various other automotive applications, where a bi-directional control mechanism is required; for example, but not limited to, spoilers, power windows, doors, mirrors, etc. Additionally, the proposed bi-directional motor mechanism of the invention may be used for any other non- automotive applications, like, but not limited to, manufacturing, consumer appliances and devices, energy and utilities, etc.
  • the present disclosure provides a system for operating one or a plurality of actuation operated features using output from a single actuator and to provide an actuation control device therefor.
  • the present disclosure provides a cost effective, easy to handle, light-weight and compact actuation system, which requires minimum maintenance.
  • the present disclosure replaces the multiple actuator system with a single actuator system, while offering the same attributes. [0069]
  • the present disclosure provides an actuator system with a flexible packaging in the vicinity or remotely alike.
  • the present disclosure provides for motion transfer to non-parallel and/or non- concurrent axis, offering limitless flexibility in packaging.
  • the present disclosure provides a system and method to overcome one or more disadvantages associated with conventional systems
  • the present disclosure provides method(s) associated with the actuation mechanism of seating systems of vehicles.
  • the present disclosure has advantages over other systems in that it is scalable and can be extended to any practical number of outputs with individual direction as well as motion control.
  • the present invention is advantageous as the unique arrangement allows for outputs to be extended to both circumferential and along the length thus offering enormous packaging feasibility.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Seats For Vehicles (AREA)
  • Transmission Devices (AREA)

Abstract

La présente invention concerne un dispositif de commande d'actionnement permettant de commander la transmission d'une force d'actionnement à un ou plusieurs éléments commandés par actionnement, le dispositif de commande d'actionnement comprenant : une pluralité d'engrenages coniques comprenant : au moins un engrenage d'entrée (406); au moins un engrenage intermédiaire (408); et au moins un engrenage de sortie (410); au moins un anneau (412) accouplé de manière fonctionnelle audit engrenage intermédiaire (408), et une pluralité de verrous (416 et 418); la mise en prise et/ou la séparation sélective d'un verrou, d'une partie ou de la totalité des verrous parmi ladite pluralité de verrous permettant un état ou une combinaison des états suivants : (a) aucune transmission de force d'actionnement, (b) une transmission de force d'actionnement dans le même sens de rotation, et (c) une transmission de force d'actionnement dans un sens inverse de rotation. La présente invention concerne également un système de positionnement de siège de véhicule incorporant un dispositif de commande d'actionnement avantageux réalisé conformément à des modes de réalisation de la présente invention.
PCT/IB2017/057157 2016-11-26 2017-11-16 Actionneur bidirectionnel WO2018096426A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019528098A JP2020500765A (ja) 2016-11-26 2017-11-16 双方向アクチュエータ
EP17822443.2A EP3544850A1 (fr) 2016-11-26 2017-11-16 Actionneur bidirectionnel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201621040435 2016-11-26
IN201621040435 2016-11-26

Publications (1)

Publication Number Publication Date
WO2018096426A1 true WO2018096426A1 (fr) 2018-05-31

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153218A (en) 1984-01-27 1985-08-21 Isringhausen Geb Seat with multiple adjustments operable by an electric motor
US5103691A (en) 1990-03-27 1992-04-14 Rockwell Automotive Body Systems Device for the motorized control of a set of elements such as the adjustable parts of a vehicle seat
US6126132A (en) 1995-04-28 2000-10-03 Lear Automotive Dearborn, Inc. Multi-function single motor seat track actuator assembly
WO2002020302A1 (fr) * 2000-09-07 2002-03-14 Intier Automotive Inc. Boite de transfert a triple sortie pour un siege de vehicule
US6626064B1 (en) * 2000-08-08 2003-09-30 Lear Corporation Single motor module for a vehicle seat
EP2472143A1 (fr) * 2009-08-28 2012-07-04 NHK Spring Co.,Ltd. Dispositif d'entraînement à plusieurs arbres
EP2682640A1 (fr) * 2011-02-28 2014-01-08 Nhk Spring Co., Ltd. Dispositif d'entraînement à arbres multiples
EP2772385A1 (fr) * 2011-10-24 2014-09-03 Aisin Seiki Kabushiki Kaisha Dispositif d'entraînement de siège

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153218A (en) 1984-01-27 1985-08-21 Isringhausen Geb Seat with multiple adjustments operable by an electric motor
US5103691A (en) 1990-03-27 1992-04-14 Rockwell Automotive Body Systems Device for the motorized control of a set of elements such as the adjustable parts of a vehicle seat
US6126132A (en) 1995-04-28 2000-10-03 Lear Automotive Dearborn, Inc. Multi-function single motor seat track actuator assembly
US6626064B1 (en) * 2000-08-08 2003-09-30 Lear Corporation Single motor module for a vehicle seat
WO2002020302A1 (fr) * 2000-09-07 2002-03-14 Intier Automotive Inc. Boite de transfert a triple sortie pour un siege de vehicule
EP2472143A1 (fr) * 2009-08-28 2012-07-04 NHK Spring Co.,Ltd. Dispositif d'entraînement à plusieurs arbres
EP2682640A1 (fr) * 2011-02-28 2014-01-08 Nhk Spring Co., Ltd. Dispositif d'entraînement à arbres multiples
EP2772385A1 (fr) * 2011-10-24 2014-09-03 Aisin Seiki Kabushiki Kaisha Dispositif d'entraînement de siège

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JP2020500765A (ja) 2020-01-16
EP3544850A1 (fr) 2019-10-02

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