公开(公告)号：US11719298B2

公开(公告)日：2023-08-08

申请号：US17364196

申请日：2021-06-30

申请人： Suncall Corporation ,  Toyota Jidosha Kabushiki Kaisha

发明人： Ryuji Kishihara ,  Seiji Okamura

IPC分类号： F16F1/06 ,  F16F1/04 ,  F16F1/12

CPC分类号： F16F1/06 ,  F16F1/047 ,  F16F1/123 ,  F16F2238/026

摘要： In the coil spring of the present invention, a helical space defined by a space between coils has a first end region whose space is increased as it extends towards the other side in the axial direction from a first reference point where the space is zero, a reference region whose space is set at a reference value L (L>0), and a second end region whose space becomes narrow as it extends toward the other side in the axial direction and zero at a second reference point. The first end region is configured such that the number of turns of the helical space is greater than 1 and the space between coils in a terminal position is greater than the reference value L. The helical space has a first transitional region between the terminal position of the first end region and the reference region, the first transitional region being configured so that the distance of space between coils is reduced from the terminal position of the first end region along the helical shape of the helical space toward the other side in the axial direction and becomes the reference value L.

公开(公告)号：US11668386B2

公开(公告)日：2023-06-06

申请号：US16603304

申请日：2018-04-17

申请人： Mitsuboshi Belting Ltd.

发明人： Hayato Shimamura ,  Katsuya Imai ,  Ryosuke Dan ,  Takashi Morimoto

IPC分类号： F16H55/36 ,  F02B67/06 ,  F16D41/20 ,  F16D7/02 ,  F16D13/08 ,  F16D13/12 ,  F16D13/14 ,  F02B63/04 ,  F16F1/06 ,  F16F15/121

CPC分类号： F16H55/36 ,  F02B67/06 ,  F16D7/022 ,  F16D13/08 ,  F16D13/12 ,  F16D13/14 ,  F16D41/206 ,  F02B63/042 ,  F16F1/06 ,  F16F15/1216 ,  F16F2228/001 ,  F16F2232/02 ,  F16F2234/02 ,  F16F2236/085 ,  F16F2238/024 ,  F16H2055/366

摘要： A pulley structure may be equipped with an outer rotating body, an inner rotating body, and a coil spring provided between the outer rotating body and the inner rotating body. The coil spring is configured so as to undergo torsional deformation in a diameter-expanding or a diameter-contracting direction, thereby engaging the outer rotating body and the inner rotating body and transmitting torque, and to undergo torsional deformation in the direction opposite the direction in which torque is transmitted, thereby entering a disengaged state in which the coil spring slides with the outer rotating body or the inner rotating body, thus interrupting the transmission of torque. The number of windings of the coil spring is in a range between [M-0.125] and M (both inclusive), where M is a natural number.

公开(公告)号：US11428305B2

公开(公告)日：2022-08-30

申请号：US17058500

申请日：2019-05-24

申请人： Mitsuboshi Belting Ltd.

发明人： Norihisa Ilo

IPC分类号： F16H55/36 ,  F16D41/20 ,  F16D7/02 ,  F16F1/06 ,  F16F15/121

摘要： A pulley structure includes: a cylindrical outer rotation body; an inner rotation body; and a torsion coil spring. The torsion coil spring includes: one end region which is in contact with one rotation body; the other end region which is in contact with the other rotation body; and a middle region. The other rotation body includes: a first contact surface; a facing surface; an inclined surface; and a second contact surface. The facing surface includes a constraining surface connected to the inclined surface. The constraining surface is configured to be capable of constraining the other end region of the torsion coil spring before press fitting so as to prevent a displacement of an axis of the torsion coil spring before the press fitting with respect to an axis of the other rotation body.

公开(公告)号：US20220203800A1

公开(公告)日：2022-06-30

申请号：US17696971

申请日：2022-03-17

申请人： NHK SPRING CO., LTD.

发明人： Masahiro UMEZAWA ,  Daisuke TAKEDA

IPC分类号： B60G21/055 ,  B60G11/14 ,  F16F1/06 ,  F16F1/14 ,  F16F1/02 ,  B60G21/045

摘要： A method for manufacturing a hollow spring member having a hollow steel spring rod having terminal sealed portions at both ends thereof. Each terminal sealed portion has a rotationally symmetric shape in which an axis passing through a center of the spring rod is an axis of symmetry. Each terminal sealed portion has an end wall portion including an end face; an arc-shaped smoothly curved surface between an outer peripheral surface of the spring rod and the end face, and a hermetically closed distal-end-center closure portion on the axis passing through the center of the spring rod. The method includes forming each of the end portions of the spring rod by forming a chamfered portion on an inner or outer peripheral side of the end portion of a hollow wire, the end portion having an opening portion at a distal end, heating the end portion of the hollow wire having the chamfered portion, and spinning the heated end portion to be gathered toward the axis from the outer peripheral side by a jig. The end wall portion, which includes the distal-end-center closure portion, is formed by the distal end of the end portion being joined together on the axis.

公开(公告)号：US20220025691A1

公开(公告)日：2022-01-27

申请号：US17417942

申请日：2020-01-29

申请人： NV Bekaert SA

发明人： Olivier CARDON ,  Vincent VERMEERSCH ,  Johan VAN DE VELDE ,  Pieter GHEKIERE ,  Wim VAN HAVER

IPC分类号： E05F15/616 ,  C22C38/24 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  F16F1/06

摘要： An actuator for opening and closing a door or a tailgate of a car contains a helical compression spring and a motor. The helical compression spring is provided for opening a door or the tailgate of a car when compressive forces of the helical compression spring are released. The motor is provided for compressing the helical compression spring in order to close the door or the tailgate of the car. The helical compression spring contains a helically coiled coated steel wire. The helically coiled coated steel wire contains a steel core and a metallic coating layer. The steel core contains a steel alloy. The steel alloy contains 0.8 to 0.95 wt % carbon, 0.2 to 0.9 wt % manganese; 0.1 to 1.4 wt % silicon; optionally one or more micro-alloying element. The microstructure of the steel core is drawn lamellar pearlite. The metallic coating layer contains at least 84% by mass of zinc.

公开(公告)号：US11168755B2

公开(公告)日：2021-11-09

申请号：US16345858

申请日：2017-10-19

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Jun Soeda

IPC分类号： F16F1/06 ,  F16H19/04 ,  F16H25/22 ,  F16K17/04 ,  F02M3/06 ,  F02M19/12 ,  B60G13/04 ,  B60T13/74 ,  B62D3/12 ,  B62D5/06 ,  B62D5/08 ,  B62D5/10 ,  F16D65/16 ,  F16D121/24 ,  F16D125/40 ,  F16D127/02 ,  F16H25/20

摘要： The present invention is to provide a vehicle-mounted apparatus having a biasing structure using a coil spring capable of reducing a lateral force of a coil spring that is applied to a biasing target member. When N1, n1, N0, and n0 represent the number of effective turns when the relief valve spring 37 is set in a valve hole 34 of a spool 29 in a compressed state, a value of an integer of N1, the number of effective turns when a length of the relief valve spring 37 is a natural length, and a value of an integer of N0, respectively, the spring 37 satisfies an equation 1: 0≤N1−n1≤0.25 or an equation 2: 0.75≤N1−n1

公开(公告)号：US11098778B2

公开(公告)日：2021-08-24

申请号：US16356070

申请日：2019-03-18

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Masaki Nanahara ,  Naoki Yabusaki ,  Yuta Morikawa

IPC分类号： F16D65/18 ,  F16F1/06 ,  B60T1/06 ,  F16D121/24 ,  F16D125/40 ,  F16D127/02 ,  F16D129/04 ,  F16D65/52 ,  F16D65/02 ,  F16D55/00

摘要： An electric brake actuator configured to push a friction member onto a rotary body by advancing a piston by rotating an input shaft by an electric motor, including: a torque imparting device configured to impart, to an input shaft, a torque in a direction to retract a piston based on an elastic torque of a torsion spring and including a mechanism configured to allow a first retained portion provided at one end portion of the torsion spring to be retained by another one of a plurality of first retaining portions of a stator when the elastic torque exceeds a set upper-limit torque to decrease the elastic torque; and a mechanism configured to permit a second retained portion of a rotor to be retained by a second retaining portion provided at the other end portion of the spring to prohibit the elastic torque from becoming smaller than a set lower-limit torque.

公开(公告)号：US11098432B2

公开(公告)日：2021-08-24

申请号：US16348358

申请日：2017-11-10

申请人： HAIER SMART HOME CO., LTD. ,  CHONGQING HAIER WASHING MACHINE CO., LTD.

发明人： Peishi Lv ,  Lin Yang ,  Gangjin Zhang ,  Yun Tian ,  Chunxia Zhou ,  Shengcheng Gao

IPC分类号： D06F37/20 ,  D06F37/26 ,  F16F1/06 ,  F16F15/067 ,  F16F7/09 ,  F16F7/08 ,  D06F37/22 ,  D06F37/24

摘要： A damping device for a washing machine and a washing machine are provided. The damping device for a washing machine comprises an upper boom, a damping spring mechanism and a lower boom, wherein an upper end of the upper boom is installed on a cabinet of the washing machine, a lower end of the lower boom is installed on an outer tub of the washing machine, the damping spring mechanism is installed between the upper boom and the lower boom, and the upper boom and/or the lower boom are/is elastically stretched under the drive of the damping spring mechanism.

公开(公告)号：US20210199186A1

公开(公告)日：2021-07-01

申请号：US17058500

申请日：2019-05-24

申请人： Mitsuboshi Belting Ltd.

发明人： Norihisa Ilo

IPC分类号： F16H55/36 ,  F16D7/02 ,  F16D41/20 ,  F16F1/06 ,  F16F15/121

摘要： A pulley structure includes: a cylindrical outer rotation body; an inner rotation body; and a torsion coil spring. The torsion coil spring includes: one end region which is in contact with one rotation body; the other end region which is in contact with the other rotation body; and a middle region. The other rotation body includes: a first contact surface; a facing surface; an inclined surface; and a second contact surface. The facing surface includes a constraining surface connected to the inclined surface. The constraining surface is configured to be capable of constraining the other end region of the torsion coil spring before press fitting so as to prevent a displacement of an axis of the torsion coil spring before the press fitting with respect to an axis of the other rotation body.

公开(公告)号：US20210190163A1

公开(公告)日：2021-06-24

申请号：US17055417

申请日：2019-04-24

申请人： Suncall Corporation ,  Toyota Jidosha Kabushiki Kaisha

发明人： Ryuji KISHIHARA ,  Seiji OKAMURA

IPC分类号： F16F1/06 ,  F16F1/04

摘要： A coil spring of this invention includes a first end coil part with a first bearing surface facing to the first side in the axial direction, a second end coil part with a second bearing surface facing to the second side in the axial direction and a central coil part connecting the first and second end coil parts. A displacement length in the axial direction from the outer end portion until the inner end portion of the first end coil part is a thickness of a spring wire forming the coil spring so that a space between the outer end portion of the first end coil part and an inner end portion of the central coil part is zero, and a displacement length in the axial direction between the outer end portion of the first end coil part and a point away along the circumferential direction from the outer end portion toward the inner end portion of the first end coil part by a half of turn around the axial line is less than a half of the thickness of the spring wire.