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    32.
    发明专利
    未知

    公开(公告)号：NL177289B

    公开(公告)日：1985-04-01

    申请号：NL7701657

    申请日：1977-02-16

    Applicant: PRESS UND STANZWERK AG

    IPC: B21K1/74

    Fork end for universal joint - has splines formed by auxiliary punch in final side forming operation
    34.
    发明专利
    Fork end for universal joint - has splines formed by auxiliary punch in final side forming operation 未知

    公开(公告)号：NL7701657A

    公开(公告)日：1978-08-18

    申请号：NL7701657

    申请日：1977-02-16

    Applicant: PRESS UND STANZWERK AG

    IPC: B21K1/74 ,  B21C37/18 ,  B21D22/00

    Abstract: The universal joint fork end is manufactured by cold forming a metal slug of definite volume. This is first squeezed to flatten the ends to size. In the first operation, the slug is placed in a die and a flat ended punch applies pressure to initially form the sides. For the second operation, the slug is placed in another die (32) and another flat ended punch (34) forms it to its final shape. At the same time a second punch (35) coinciding with the axis of the first, forms the inner splines (36) in the face of the fork end. Extractors (37) are fitted.

    36.
    发明专利
    未知

    公开(公告)号：DE1933483A1

    公开(公告)日：1970-02-05

    申请号：DE1933483

    申请日：1969-07-02

    Applicant: PRESS UND STANZWERK AG

    Inventor： ROLF WE HMUELLER ,  GREINER PAUL ,  XANDER FRANZ

    IPC: B21J5/06 ,  B21K21/04 ,  C21D9/16 ,  F42B5/28 ,  B21D51/54

    Abstract: 1,263,938. Making cartridge cases; upsetting. WERKZEUGMASCHINEN-FABRIK OERLIKON-BUHRLE A.G. 11 July, 1969 [12 July, 1968; 16 July, 1968 (2)], No. 35107/69. Headings B3A and B3H. [Also in Division F3] A cartridge case is made by cold upsetting a blank sheared from a bar stock, backward extruding the blank and axially pressing the cupped article formed to shape the base of the case in one pressing. The degree of upsetting is selected so that any defects in the blank become visible as surface cracks. The defective blanks are sorted out either visually, mechanically, electrically or pneumatically. The bar stock is steel with a carbon content of below 0À3%, preferably 0À16 to 0À25%. The cupped article is heat treated to restore the strain-hardening property to the steel. The heat treatment comprises heating the article to above the A3 transformation point, holding this temperature for 1 to 5 minutes and rapidly cooling at 50‹ to 100‹ C. per minute. The heating may be induction or by a gas or oil furnace. This treatment prevents the formation of coarse grains particularly between the base and side walls of the case.

    38.
    发明专利
    未知

    公开(公告)号：DE19607533A1

    公开(公告)日：1997-09-04

    申请号：DE19607533

    申请日：1996-02-28

    Applicant: PRESS UND STANZWERK AG

    Inventor： KRAETTLI CHRISTIAN ,  KUNZ MARKUS

    IPC: B60S1/34 ,  B60S1/36 ,  B60S1/04

    Abstract: The invention concerns a windscreen-wiper arrangement comprising a two-part longitudinally variable wiper arm (3) at the free end of which a wiper blade rotary bearing (21) and a wiper blade (6) comprising a rotary drive are disposed. The displaceable wiper arm section has a hollow profile (5) through which a longitudinally variable drive shaft is guided to the wiper blade rotary bearing (21).

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