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    POWER TOOL HAVING AN AIR COOLING SYSTEM ANDMETHOD FOR COOLING COMPONENTS OF A POWER TOOL
    63.
    发明公开
    POWER TOOL HAVING AN AIR COOLING SYSTEM ANDMETHOD FOR COOLING COMPONENTS OF A POWER TOOL 审中-公开

    公开(公告)号：US20230415324A1

    公开(公告)日：2023-12-28

    申请号：US18039431

    申请日：2021-11-17

    Applicant: Hilti Aktiengesellschaft

    Inventor： Ralf GREITMANN ,  Roland MEUER

    IPC: B25F5/00

    CPC classification number: B25F5/008 ,  B24B23/02

    Abstract: A power tool having an air cooling system. A special air guidance system is proposed, the components of the power tool, such as a motor, transmission or electronics of the power tool, can be supplied in a particularly efficient manner with a cooling air flow around them and in this way can be cooled. In this case, the cooling system should, in particular, be independent of any components of the housing of the power tool since the air guidance is advantageously brought about by internal guidance processes, wherein these internal guidance processes preferably take place independently of components of the housing of the power tool. In particular, the housing-independent air cooling of the components of the power tool is achieved by the provision of a fan on a rotor of the motor of the power tool, which is designed, by means of a reduced pressure, to produce a cooling air flow and guide it in a suitable manner through the power tool. In a second aspect, the invention relates to a method for cooling components of a power tool.

    COUPLING MECHANISM
    64.
    发明公开
    COUPLING MECHANISM 审中-公开

    公开(公告)号：US20230415313A1

    公开(公告)日：2023-12-28

    申请号：US18037662

    申请日：2021-11-12

    Applicant: Hilti Aktiengesellschaft

    Inventor： Maximilian KNYRIM

    IPC: B25B27/10 ,  F16H25/20

    CPC classification number: B25B27/10 ,  F16H25/20 ,  F16H2025/2075

    Abstract: Power tool, in particular a pipe press, including a drive, a transmission device, a threaded spindle drive and a linear actuator, wherein a torque generated by the drive is transmissible via the transmission device and the threaded spindle drive to the linear actuator. The power tool includes a coupling device having a sleeve and a piston for converting a rotational movement generated by the transmission device into a linear movement, to be transmitted to the threaded spindle drive, from the transmission device to the threaded spindle drive, wherein a toothed profile for connecting the piston to the sleeve for conjoint rotation therewith is contained between the sleeve and the piston, with the result that the piston is arranged in a manner which allows it to move axially relative to the sleeve and to rotate with the threaded spindle drive.

    Eccentric transmission for a power tool
    65.
    发明公开
    Eccentric transmission for a power tool 审中-公开

    公开(公告)号：US20230415218A1

    公开(公告)日：2023-12-28

    申请号：US18037255

    申请日：2021-11-10

    Applicant: Hilti Aktiengesellschaft

    Inventor： Maximilian KNYRIM ,  Michael HINTERSTOISSER ,  Florian SCHMID

    IPC: B21D39/04

    CPC classification number: B21D39/048 ,  B21D39/046

    Abstract: Power tool, in particular a pipe press, including a drive, an output shaft, a threaded spindle drive and a linear actuator, wherein a torque generated by the drive is transmissible via the output shaft, and the threaded spindle drive connected to the output shaft, to the linear actuator. The power tool includes an eccentric transmission device for a torque adaptation between the drive and the threaded spindle drive, wherein the eccentric transmission device includes a drive eccentric, which is drivable by the drive, an eccentric gear, which is drivable by the drive eccentric, and a compensating coupling, which is drivable by the eccentric gear and which serves for transmitting torque from the eccentric gear to the output shaft.

    DEVICE FOR ROUTING LINES, PIPES, AND/OR CABLES THROUGH A BUILDING STRUCTURE PART
    67.
    发明公开
    DEVICE FOR ROUTING LINES, PIPES, AND/OR CABLES THROUGH A BUILDING STRUCTURE PART 审中-公开

    公开(公告)号：US20230407996A1

    公开(公告)日：2023-12-21

    申请号：US18250671

    申请日：2021-10-18

    Applicant: HILTI AKTIENGESELLSCHAFT

    Inventor： Ulf MORDAU

    IPC: F16L5/14 ,  A62C2/06 ,  F16L5/04

    CPC classification number: F16L5/14 ,  F16L5/04 ,  A62C2/06

    Abstract: A device for routing lines, pipes, and/or cables through a building part, contains a housing having a housing wall. The housing has an axial passage channel that is delimited by the housing wall and extends in the longitudinal direction, and has in each case an opening at opposite ends. At least two sealing arrangements are each provided in the housing interior, are designed for sealing the passage channel, and form a sealing surface. A first sealing surface has a plurality of sealing elements which are elongated, extend in a first main direction, and are adjacent to one another. A second sealing surface has a plurality of sealing elements that are elongated, extend in a second main direction, and are adjacent to one another. The first main direction and the second main direction differ from one another with respect to a transverse plane perpendicular to the longitudinal direction.

    POWER TOOL WITH THREADED SPINDLE DRIVE
    68.
    发明公开
    POWER TOOL WITH THREADED SPINDLE DRIVE 审中-公开

    公开(公告)号：US20230405779A1

    公开(公告)日：2023-12-21

    申请号：US18035413

    申请日：2021-09-13

    Applicant: Hilti Aktiengesellschaft

    Inventor： Florian SCHMID ,  Albert BINDER

    IPC: B25B27/10 ,  B21D39/04

    CPC classification number: B25B27/10 ,  B21D39/046

    Abstract: A power tool is provided comprising a drive, an output shaft, a threaded spindle drive and a linear actuator, wherein torque generated by the drive is transmissible via the output shaft, and the threaded spindle drive connected to the output shaft, to the linear actuator. the threaded spindle drive has an inner threaded spindle part with an external thread and an outer threaded spindle part with an internal thread, wherein the internal thread interacts with the external thread via at least one bearing roller, and the at least one bearing roller has at least one radially encircling channel by which the bearing roller engages in each case into the external thread and into the internal thread.

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