Spring biased support for electrotherapeutic apparatus articulated arm structure
    1.
    发明授权
    Spring biased support for electrotherapeutic apparatus articulated arm structure 失效
    电动自行式装置臂结构弹簧偏置支撑

    公开(公告)号:US3593952A

    公开(公告)日:1971-07-20

    申请号:US3593952D

    申请日:1969-11-13

    CPC classification number: A61N5/01 A61N5/06 Y10T403/32557 Y10T403/32827

    Abstract: An articulated arm structure is supported by a cabinet and supports an electrotherapeutic treatment head; the arm structure includes first and second cup-shaped joint members interconnected to define a horizontal axis of relative rotation; a first torsion spring extends within the members to yieldably resist arm structure articulation while blocking collapse of the arm structure and head when projecting generally horizontally; and there may be third and fourth cup-shaped joint members connected to define another horizontal axis of rotation, and containing a second torsion spring connected to yieldably resist arm structure articulation while blocking collapse of the arm structure and head when projecting generally horizontally.

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