Controlling end effector suction area using expandable bladder

    公开(公告)号:US11267137B1

    公开(公告)日:2022-03-08

    申请号:US16694586

    申请日:2019-11-25

    Inventor: Manikantan Nambi

    Abstract: Aspects described herein include an end effector that includes a pliable body member defining an inner recess and having a sealing surface at a distal end. The sealing surface forms a seal with items and defines a first suction area. The end effector also includes an inflatable bladder that expands into the inner recess. When the bladder is in an inflated state, the bladder defines a second suction area smaller than the first suction area. The end effector also includes a vacuum port in fluid communication with the inner recess.

    Varying strength interface system for robotic end-effector

    公开(公告)号:US11642793B1

    公开(公告)日:2023-05-09

    申请号:US16899885

    申请日:2020-06-12

    CPC classification number: B25J15/0616

    Abstract: Aspects described herein include an end effector having an interface system that includes a body member attached to a mounting plate, and a plurality of strength-varying features at a plurality of regions of the interface system. The plurality of strength-varying features encourage the body member to repeatably deform into a deformed configuration. The end effector further comprises a vacuum port in fluid communication with an inner recess of the body member, and a plurality of actuators that apply a force to the mounting plate to pivot a portion of the mounting plate and deform the body member into the deformed configuration.

    Robotic end effectors having fingers and nails to grasp and cage items

    公开(公告)号:US12226895B1

    公开(公告)日:2025-02-18

    申请号:US17398838

    申请日:2021-08-10

    Abstract: Robotic end effectors may include a suction cup, one or more grasping fingers, and one or more flexible nails to securely and reliably engage, grasp, and cage items. The grasping fingers may move between open and closed positions to grasp items. In addition, the flexible nails may be coupled to ends of the grasping fingers to facilitate caging of items by the fingers and nails. For example, the flexible nails may bend, flex, or slide under, around, or relative to items and thereby enable grasping and caging of portions of items by the fingers and nails. The nails may be formed of various materials, with various layers or thicknesses of materials, and/or with variable flexibility or friction properties. Further, the nails may be transitioned or actuated between multiple configurations, including a sliding configuration and a grasping configuration.

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