Spring return device
    2.
    发明授权

    公开(公告)号:US11585327B2

    公开(公告)日:2023-02-21

    申请号:US17393867

    申请日:2021-08-04

    Applicant: Kinetrol Ltd

    Inventor: Roger Chapman

    Abstract: The present invention provides a spring return device comprising a rotatable drive coupling configured for releasably engaging a rotatable drive part on a first side of the device and configured for releasably engaging a rotatable drive part on an opposite second side of the device. A spring is engaged with the drive coupling, and a retainer retains the spring. The drive coupling is rotatable relative to the retainer, wherein rotation of the drive coupling relative to the retainer in a first direction causes mechanical energy to be stored in the spring. The spring return device further comprises a limiter element that is arranged to rotate with the drive coupling, and one or more stopping surfaces comprising a first stopping surface arranged to abut a first limiter surface on the limiter element when the drive coupling is in a first predetermined rotational position, to thereby limit rotation of the drive coupling relative to the retainer in a second direction, the second direction being opposite to the first direction. The spring return device of the invention may facilitate reversing the direction of operation of the spring return device.

    Torque adjustment mechanism
    4.
    发明授权

    公开(公告)号:US11306793B2

    公开(公告)日:2022-04-19

    申请号:US17066817

    申请日:2020-10-09

    Inventor: Gerald Schutt

    Abstract: A torque adjustment mechanism is provided for use with a torsion spring. The torsion spring is a coil spring having a plurality of helical coils that define a hollow core. A torque adjuster is positioned in the interior of the hollow core of the coil spring. The torque adjuster has a circular collar on one end and a securing flange on the other end. The circular collar is designed to fit into the hollow core of the coil spring. A clamp is positioned over the exterior of the coil spring in alignment with the circular collar. The clamp secures the coil spring to circular. The position of the collar in the spring defines the number of the coils that are active and establishes the level torque provided by the torsion spring.

    Rotary power storage and reinforcement system

    公开(公告)号:US10989176B2

    公开(公告)日:2021-04-27

    申请号:US16804368

    申请日:2020-02-28

    Applicant: Kunihiko Utata

    Inventor: Kunihiko Utata

    Abstract: The objective is to realize a rotation storage device with a lightweight and straightforward configuration that can release the energy of various urging means, typically a flat coil spring, over a more extended period and increase the urging force. The rotation storage device includes a plurality of single unit rotation storage devices that comprise of an urging means for urging of the rotational force and a one-way bearing with one end of the urging means fixed to one of its outer ring or inner ring, wherein a plurality of single unit rotation storage devices are characterized in that the outer ring and inner ring of the one-way bearings are connected, the other end of the urging means connected to one end of the urging means of the adjacent unit rotation storage device, and the rotation force is output between the outer ring and inner ring of the one-way bearing.

    Bicycle pedal for maximizing and storing torque

    公开(公告)号:US10668977B2

    公开(公告)日:2020-06-02

    申请号:US16554256

    申请日:2019-08-28

    Abstract: A bike pedal assembly uses a pawl, a gear and a torque spring to enable a rider to store and release torque energy while pedaling a bike. The pawl and gear are connected to a nut on an axle, which is connected to a crank arm of the bike. Being connected to the gear and a foot pedal, the torque spring stores torsional energy when one end is stationary and the other rotates with the foot pedal during half of the crank arm resolution, while releases torsional energy during the second half to the crank arm. Thus, the pedal assembly, which can be efficiently installed on each of the foot pedals of the bike, allows the rider to store and utilize additional torque energy and provides a more efficient means of storing torque energy than the conventional system.

    MULTI-BUFFERING ENERGY STORAGE DEVICE AND APPLICATION THEREOF

    公开(公告)号:US20190242368A1

    公开(公告)日:2019-08-08

    申请号:US16345673

    申请日:2017-11-10

    Abstract: A multi-buffer energy accumulation apparatus comprises: an energy storage cylinder, an oil tank, a first scroll spring mechanism, a second scroll spring mechanism, a hydraulic motor, differential planetary train of gearings, and a generator; wherein the energy storage cylinder comprises a hermetically sealed cylinder body, one end of the hermetically sealed cylinder body being provided with an elastic mobile device, the other end thereof being provided with an energy transmission device, and hydraulic oil is filled in the hermetically sealed cylinder body between the elastic mobile device and the energy transmission device; the hermetically sealed cylinder body, the hydraulic motor, and the oil tank are connected via an oil circuit to form a hydraulic loop; the energy transmission device is connected with the first scroll mechanism; the hydraulic motor is connected with the second scroll spring mechanism.

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