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    15.
    发明专利
    未知

    公开(公告)号：DE69426958T2

    公开(公告)日：2001-10-25

    申请号：DE69426958

    申请日：1994-09-02

    Applicant: ATLAS COPCO TOOLS AB

    Inventor： HANSSON GUNNAR CHRISTER

    IPC: B23P19/06 ,  B25B23/14 ,  B25B23/147 ,  B25B23/151

    Abstract: A method and a device for tightening threaded joints to a desired pretension level using a manually operated power nutrunner and controlling the tightening process by determining during the tensioning phase the instantaneous growth per time unit of the torque resistance from the joint, and adapting continuously the rotation speed of the nutrunner in relation to the determined instantaneous torque growth per time unit so as to obtain the same reaction force characteristics in the nutrunner handle for all joints, regardless of differences in torque resistance growth per angle of rotation between the joints.

    17.
    发明专利
    未知

    公开(公告)号：SE508318C2

    公开(公告)日：1998-09-21

    申请号：SE9301804

    申请日：1993-05-26

    Applicant: ATLAS COPCO TOOLS AB

    Inventor： HANSSON GUNNAR CHRISTER

    IPC: H02K3/47 ,  H02K15/02 ,  H02K15/12

    Abstract: PCT No. PCT/SE94/00495 Sec. 371 Date Apr. 20, 1995 Sec. 102(e) Date Apr. 20, 1995 PCT Filed May 26, 1994 PCT Pub. No. WO94/28612 PCT Pub. Date Dec. 8, 1994A stator for an electric machine comprises a tubular unslotted ferromagnetic flux collector ring (16) and stator winding coils (18, 19, 20) having two legs which extend substantially axially along the inner cylindrical surface of the flux collector ring (16). Each winding coil leg is confined within an envelope (22) of a thin, flexible, non-conductive non-magnetizable material which is impregnated with and bonded to the next legs as well as to the flux collector ring (16) by a hot-setting resinous material.

    18.
    发明专利
    未知

    公开(公告)号：DE69500471T2

    公开(公告)日：1998-03-05

    申请号：DE69500471

    申请日：1995-01-27

    Applicant: ATLAS COPCO TOOLS AB

    Inventor： HANSSON GUNNAR CHRISTER ,  OLSSON STEN HERMAN ,  SCHOEPS KNUT CHRISTIAN

    IPC: B25B21/02 ,  B25B23/145

    Abstract: A hydraulic torque impulse generator having a drive member (10) with a fluid chamber (12) and an output spindle (11) extending into the fluid chamber (12) and being provided with a movable seal element (19) and an axial seal ridge (22) for cooperation with oppositely disposed axial seal lands (13, 14) in the fluid chamber (12) to, thereby, divide the fluid chamber (12) into one high pressure compartment (H.P.) and one low pressure compartment (L.P.) during a limited angular interval of relative rotation between the drive member (10) and the output spindle (11), and a valve means comprising an elongate contact element (24, 44) which is supported in an axial groove (23, 43) in the seal ridge (22), which groove (23, 43) communicates with the high pressure compartment (H.P.) such that the contact element (24, 44) is urged into its sealing condition by the fluid pressure at pressure magnitudes above a certain level. A sealing barrier (27) around the output spindle (11) comprises a clearance seal (33), a low pressure chamber (39) and a spring biassed piston (35) and prevents temperature related pressure variations in the fluid chamber (12).

    ELECTRIC POWER TOOL WITH CODE RECEIVER
    19.
    发明专利
    ELECTRIC POWER TOOL WITH CODE RECEIVER 未知

    公开(公告)号：CA2174434A1

    公开(公告)日：1996-02-29

    申请号：CA2174434

    申请日：1995-08-17

    Applicant: ATLAS COPCO TOOLS AB

    Inventor： SIEGLE VOLKER ,  HANSSON GUNNAR CHRISTER

    IPC: G08C17/00 ,  B25F5/00 ,  G08B13/14 ,  G08C19/00 ,  G08C23/04 ,  H02J13/00

    Abstract: An electric power tool having means for alternatively disabling and enabling tool operation comprises a code signal receiver (7) and an electronic control means (11) supported on the tool, which control means (11) is arranged to be switched to an operable mode when a code signal (4) is received by the code signal receiver (7) and to be switched to an inoperable mode as the power supply voltage is disconnected or as a certain interval of operation has been completed, wherein the control means (11) remains in the inoperable mode until the code signal (4) is received by the code signal receiver (7).

    20.
    发明专利
    未知

    公开(公告)号：SE502953C2

    公开(公告)日：1996-02-26

    申请号：SE9203340

    申请日：1992-11-09

    Applicant: ATLAS COPCO TOOLS AB

    Inventor： HANSSON GUNNAR CHRISTER

    IPC: H01B7/08 ,  H01B9/00 ,  H01B7/04 ,  B25F5/00 ,  H02G11/00

    Abstract: PCT No. PCT/SE93/00944 Sec. 371 Date May 8, 1995 Sec. 102(e) Date May 8, 1995 PCT Filed Nov. 9, 1993 PCT Pub. No. WO94/11887 PCT Pub. Date May 26, 1995A multi-core cable (15) for communicating electric power and electrical signals to and from a hand held power nutrunner (10). Three longitudinal sections (16-18) are arranged in parallel with each other, and each has a geometric center (20-22) such that in any cross section of the cable (15) the geometric centers (20-22) are disposed on a straight line (24). A flex zone (A) is arranged adjacent the nutrunner (10) and has a preformed longitudinally twisted shape for obtaining a universal flexibility of the cable (15) and, thereby, a comfortable handling of the nutrunner (10).

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