Timber Working Device and Method for Controlling a Timber Working Device and a Working Vehicle

    公开(公告)号:US20210029899A1

    公开(公告)日:2021-02-04

    申请号:US16947457

    申请日:2020-08-03

    申请人: Deere & Company

    发明人: Lauri Palmroth

    IPC分类号: A01G23/095

    摘要: A timber working device, comprising a frame, having a feed axis, a drive system, configured to feed at least one stem along the feed axis, at least a pair of upper knives or lower knives movably attached to the frame, wherein the knives are configured to be controllable each by an actuator to open and close around a stem, a tilt mechanism comprising a controllable tilt bracket pivotably attached to the frame, to control a tilt position of the frame in relation to the tilt bracket.

    Log processing head
    3.
    发明授权

    公开(公告)号:US10806103B2

    公开(公告)日:2020-10-20

    申请号:US15956827

    申请日:2018-04-19

    申请人: DEERE & COMPANY

    摘要: A log processing head with a top knife and moveable feed means and delimbing and/or debarking means pushing a log against the top knife by means of actuators. In order to allow the top knife to follow the contour of the log without damaging a pin holding the knife, a pivot joint is used between the knife and the connection of the pin on the structure.

    Control arrangement for an engine and a hydrostatic transmission of a vehicle

    公开(公告)号:US10710591B2

    公开(公告)日:2020-07-14

    申请号:US15830723

    申请日:2017-12-04

    申请人: Deere & Company

    摘要: A control arrangement for use in a drive arrangement of a vehicle includes an engine, a hydrostatic transmission, a load sensing means configured to detect a load on the engine, and an engine speed controller for controlling the engine. The arrangement further includes a pressure control means configured to act on a pressure in the hydrostatic transmission and a drive controller. The load sensing means generates a first signal, and based on the first signal, the drive controller generates a second signal for the engine speed controller and the pressure control means.

    Timber working device and method for controlling a timber working device and a working vehicle

    公开(公告)号:US11559012B2

    公开(公告)日:2023-01-24

    申请号:US16947457

    申请日:2020-08-03

    申请人: Deere & Company

    发明人: Lauri Palmroth

    摘要: A timber working device, comprising a frame, having a feed axis, a drive system, configured to feed at least one stem along the feed axis, at least a pair of upper knives or lower knives movably attached to the frame, wherein the knives are configured to be controllable each by an actuator to open and close around a stem, a tilt mechanism comprising a controllable tilt bracket pivotably attached to the frame, to control a tilt position of the frame in relation to the tilt bracket.

    Log Processing Head
    6.
    发明申请
    Log Processing Head 审中-公开

    公开(公告)号:US20180303046A1

    公开(公告)日:2018-10-25

    申请号:US15956827

    申请日:2018-04-19

    申请人: DEERE & COMPANY

    IPC分类号: A01G23/097 B27L1/00

    摘要: A log processing head with a top knife and moveable feed means and delimbing and/or debarking means pushing a log against the top knife by means of actuators. In order to allow the top knife to follow the contour of the log without damaging a pin holding the knife, a pivot joint is used between the knife and the connection of the pin on the structure.