PRINT WHEEL AND METHOD OF AFFIXING HUB THERETO

    公开(公告)号:CA1105407A

    公开(公告)日:1981-07-21

    申请号:CA327950

    申请日:1979-05-17

    Applicant: XEROX CORP

    Abstract: A method for affixing a hub fabricated of a first material to a print wheel having a central portion fabricated of a second material, wherein the hub has a central portion including a cavity formed therein and a peripheral flange portion extending from the central portion, and wherein the central portion of the print wheel has an opening therein. The method comprises the steps of positioning the hub on top of the central portion of the print wheel with the cavity alignedwith the opening, positioning a ring having et least one depending portion on top of the peripheral flange portion of the hub, the at least one depending flange portion being fabricated of the second material, applying a downward force to the ring such that the at least one depending portion thereof pierces through the peripheral flange portion of the hub, and welding the at least one dependingportion of the ring to the central portion of the print wheel.

    HAMMER ASSEMBLY
    9.
    发明专利

    公开(公告)号:CA1085676A

    公开(公告)日:1980-09-16

    申请号:CA271162

    申请日:1977-02-07

    Applicant: XEROX CORP

    Abstract: HAMMER ASSEMBLY A hammer assembly comprising a housing having opposing open ends and an internal passage extending between the open ends. A hammer element is positioned in the housing for reciprocal movement in the passage between first and second positions. The hammer element has an opening formed therein in which a biasing member is positioned. When enabled, the biasing member is capable of biasing the hammer element in a desired direction relative to the first and second positions. The housing is desirably fabricated of a self-lubricating material with the area of the opening at one of its ends being substantially larger than the cross-sectional area of the hammer element taken along a plane perpendicular to the axis of motion of the hammer element at such one end in order for air to be freely vented from the passage during reciprocal movement of the hammer assembly.

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