公开(公告)号：US20240316822A1

公开(公告)日：2024-09-26

申请号：US18578848

申请日：2022-08-03

Applicant: Hilti Aktiengesellschaft

Inventor： Serhey KHANDOZHKO ,  Dario BRALLA ,  Manuel KNOBEL ,  Carsten PETERS ,  Markus MEIERHOFER

IPC: B28D1/14 ,  B25D17/02 ,  B28D7/02

CPC classification number: B28D1/146 ,  B25D17/02 ,  B28D7/02 ,  B25D2222/72 ,  B25D2250/141

Abstract: A masonry drilling tool for drilling reinforced masonry, in particular, reinforced concrete is provided, wherein the masonry drilling tool has a magnetizing device. A masonry drilling device and a method for drilling reinforced masonry is also provided.

公开(公告)号：US20230219206A1

公开(公告)日：2023-07-13

申请号：US18124750

申请日：2023-03-22

Applicant: SCHLEY PRODUCTS INC.

Inventor： Chad Schley ,  Jeff Marshall ,  Tim Hume

IPC: B25D17/00 ,  B25D17/02 ,  B25F3/00

CPC classification number: B25D17/005 ,  B25D17/02 ,  B25F3/00 ,  B25B21/023

Abstract: A pneumatic hammer extender arm assembly is provided comprising an elongated extender arm body defining a hammer engaging portion formed at a first end of the body, and a hammerhead engaging portion formed at a second end of the body. A hammerhead is detachably engageable to the hammerhead engaging portion to allow for quick change of the hammerhead without the need for any tools. The hammerhead may alternately be implemented to engage and apply an impact force to a fastener that may be axially offset from the extender arm body.

公开(公告)号：US20230191578A1

公开(公告)日：2023-06-22

申请号：US17558685

申请日：2021-12-22

Applicant: Robert Bosch GmbH

Inventor： Robert Kochie ,  Robert Jensen ,  Dennis Hanson

IPC: B25D17/02 ,  B25D17/08 ,  B25D9/00

CPC classification number: B25D17/02 ,  B25D9/00 ,  B25D17/08 ,  B25D2250/111

Abstract: An air hammer tool having a head section defining a blind-hole and a contact surface surrounding the blind-hole, configured to be coupled with an air hammer to provide a percussive force through the contact face of the tool to an axle flange around an axle shaft flange hole, after a flange nut has been removed, to shock a cone-washer disposed therein. The design and solution to this long-felt issue allows for easier removal of the cone-washers from the axle shaft flange holes while not contacting the respective studs and lowering chances for damage of the axle componentry.

公开(公告)号：US11623333B2

公开(公告)日：2023-04-11

申请号：US17217233

申请日：2021-03-30

Applicant: MAKITA CORPORATION

Inventor： Masanori Furusawa ,  Hajime Takeuchi ,  Yoji Inoue

IPC: B25D11/12 ,  B25D17/02 ,  B25D17/06

Abstract: A power tool includes a hammer mechanism, a brushless motor and a cooling fan. The brushless motor includes a rotary member having a motor shaft operably coupled to the hammer mechanism for linearly driving a tool accessory. The cooling fan has a first blade part and is configured to be rotated by the rotary member. The cooling fan includes a polymer portion, which forms at least a portion of the first blade part, and a metal portion disposed in or on the polymer portion. When viewed in a direction parallel to a rotational axis of the cooling fan, the metal member at least partially overlaps the first blade part in a radial direction of the cooling fan.

公开(公告)号：US11571797B1

公开(公告)日：2023-02-07

申请号：US17669709

申请日：2022-02-11

Applicant: STORM PNEUMATIC TOOL CO., LTD.

Inventor： Yung Yung Sun

IPC: B25D9/04 ,  B25D17/02 ,  B25D17/24

Abstract: A pneumatic impact tool having a vibration reducing structure includes a handle with a bucket member and a directional control valve. A tube member including a cylindrical wall and a chamber is coupled with the bucket member. The chamber is divided into a front and a rear chamber portion by a hammer member. Gas may be guided into the front or the rear chamber portion by the directional control valve. A vent is disposed on the cylindrical wall. An exhaust channel which communicates with the front chamber portion and not communicates with the rear chamber portion is disposed on an outer peripheral surface of the hammer member. The hammer member is pushed to return if gas is guided into the front chamber portion. Gas in the front chamber portion is exhausted when the exhaust channel communicates with the vent.

公开(公告)号：US20220193874A1

公开(公告)日：2022-06-23

申请号：US17536468

申请日：2021-11-29

Applicant: Robert Bosch GmbH

Inventor： Houman Ramezanian ,  Joachim Loeblein ,  Martin Scherrer ,  Stefano Delfini

IPC: B25D17/02 ,  B25D17/24

Abstract: The disclosure is based on an electronic module for an insert tool, in particular a drill bit or a chisel, including at least one electronic device for processing and/or sensing insert-tool-specific characteristics, including at least one holding device for releasably holding the electronic device on the insert tool. The holding device having at least one insert-tool interface having at least one contact surface that, when the holding device is arranged on the insert tool, is in contact, in particular in direct contact, with the insert tool, and including at least one damping unit for damping vibrations acting on the electronic device. The damping unit at least partially constitutes the insert-tool interface.

公开(公告)号：US20220176534A1

公开(公告)日：2022-06-09

申请号：US17456420

申请日：2021-11-24

Applicant: Black & Decker Inc.

Inventor： Ross A. Billings ,  Wesson Charles ,  Michael Allen ,  Sona Mathew ,  Michael Sikora ,  Curtiss Morton ,  Robert J. Cirincione, II ,  BhanuPrakash Villuri ,  Paul J. Korick ,  Madhur M. Purohit ,  Jason McKillican

IPC: B25D16/00 ,  B25D17/04 ,  B25D17/02

Abstract: A power tool includes a housing, a motor disposed in the housing, a motor controller disposed in the housing and electrically coupled to the motor, and a transmission disposed in the housing and coupled to the motor. A tool bit holder is rotatably driven by the motor via the transmission and receives a tool bit for rotatably driving threaded fasteners. A power switch and an electronic model select switch are actuatable from outside the housing and are coupled to the motor controller. The power switch controls power delivery to the motor. The electronic mode select switch is configured to select between at least a first mode of operation in which power delivery to the motor is controlled by actuation of the power switch and an electronic lock on mode in which continuous power is delivered to the motor upon a single actuation and release of the power switch.

公开(公告)号：US20220080497A1

公开(公告)日：2022-03-17

申请号：US17423953

申请日：2020-02-11

Applicant: Fill Gesellschaft m.b.H.

Inventor： Alois BOINDECKER

IPC: B22D29/00 ,  B25D17/02 ,  B08B7/02

Abstract: A decoring hammer for decoring cast workpieces, includes: —a housing; —a striker which is coupled to the housing and which includes a contact surface serving for contact on the cast workpiece to be decored. Moreover, a downholder is formed which is coupled to the housing and which includes a downholder surface serving for contact on the cast workpiece to be decored, wherein the striker is displaceable relative to the downholder.

公开(公告)号：US20210308855A1

公开(公告)日：2021-10-07

申请号：US17102872

申请日：2020-11-24

Applicant: APEX BRANDS, INC.

Inventor： Annamalai Pugalumperumal

IPC: B25D17/02 ,  B25B19/00 ,  B25B23/00 ,  B25B13/06

Abstract: A torque transfer assembly for an impact bit holder may include a jacket operably coupled to a driven body having a driven end configured to interface with a bit, and a multi-start thread assembly operably coupling the jacket to a drive body having a drive end configured to interface with a powered driver. The torque transfer assembly may be disposed between the drive body and driven body and may be configured to transfer torque between the drive body and the driven body.

公开(公告)号：US20210299839A1

公开(公告)日：2021-09-30

申请号：US17217233

申请日：2021-03-30

Applicant: MAKITA CORPORATION

Inventor： Masanori FURUSAWA ,  Hajime TAKEUCHI ,  Yoji INOUE

IPC: B25D17/02 ,  B25D17/06 ,  B25D11/12

Abstract: A power tool includes a hammer mechanism, a brushless motor and a cooling fan. The brushless motor includes a rotary member having a motor shaft operably coupled to the hammer mechanism for linearly driving a tool accessory. The cooling fan has a first blade part and is configured to be rotated by the rotary member. The cooling fan includes a polymer portion, which forms at least a portion of the first blade part, and a metal portion disposed in or on the polymer portion. When viewed in a direction parallel to a rotational axis of the cooling fan, the metal member at least partially overlaps the first blade part in a radial direction of the cooling fan.