-
公开(公告)号：US20250001548A1
公开(公告)日：2025-01-02
申请号：US18538337
申请日：2023-12-13
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jwahyeon KIM , Kyungyeol KIM , Taesung KIM , Hyuntae KIM , Byunghyuck AHN
Abstract: A grinder may include a spindle, a grinding wheel and a mount disk. The spindle may be configured to generate a rotary force. The grinding wheel may be configured to receive the rotary force from the spindle and grind an object. The mount disk may be between the spindle and the grinding wheel and may be configured automatically engage or disengage the grinding wheel based on a rotation direction of the mount disk. Thus, an exchange or replacement of the grinding wheel may be performed in a short time by rotating the spindle so that the grinding wheel is disengaged from the mount disk.
-
公开(公告)号：US20240375187A1
公开(公告)日：2024-11-14
申请号：US18196716
申请日：2023-05-12
Applicant: Robert Bosch GmbH
Inventor： Andres David Salazar Tello
Abstract: A mandrel assembly may be used with a rotary power tool to provide a reliable and stable connection between the rotary tool and a tool accessory. The mandrel assembly provides a quick-connect/quick-release connection between the tool output shaft and the accessory via a clamping action. In particular, the mandrel assembly is operable to clamp the accessory between elastic clamping jaws that protrude from one end of the mandrel and a collar which surrounds the mandrel and is spring-biased toward the mandrel end.
-
公开(公告)号：US20240300067A1
公开(公告)日：2024-09-12
申请号：US18599321
申请日：2024-03-08
Applicant: MAKITA CORPORATION
Inventor： Sujian DAI , Lingfang LIU , Fengmei HU
IPC: B24B45/00
CPC classification number: B24B45/006
Abstract: A tip tool mounting structure for a machining device includes a shaft portion and a holding member. The shaft portion includes a ridge extending in a longitudinal direction and projecting outward in a radial direction. The holding member includes a protrusion projecting outward in the radial direction, switches between an attached and detached state and a fixed state by the rotation, the holding member is configured to be temporarily fixed in the attached and detached state, the attached and detached state is a state in which the protrusion overlaps with the ridge in the longitudinal direction, and the fixed state is a state in which the protrusion does not overlap with the ridge in the longitudinal direction. The temporary fixation of the holding member is automatically released by a movement of a tip tool to an opposite distal end side in the longitudinal direction.
-
公开(公告)号：US12017324B2
公开(公告)日：2024-06-25
申请号：US16341295
申请日：2017-10-04
Applicant: Robert Bosch GmbH
Inventor： Andreas Zurbruegg
CPC classification number: B24B45/006 , B24B23/028
Abstract: A quick clamping device for a portable machine tool, in particular an angle grinder, includes at least one output shaft, at least one clamping unit, at least one operating unit, and at least one securing unit. The clamping unit, for the purpose of fixing an insert bit to the output shaft without using tools, includes at least one clamping element for applying a clamping force to the bit in a clamping position. The operating unit moves the clamping element into the clamping position and/or into a release position in which the insert bit can be removed from the clamping unit and/or the output shaft. The securing unit is designed to prevent movement of the clamping element from the clamping position into the release position at least under the action of a force decoupled from the operating unit and acting on the clamping element in the direction of the release position.
-
公开(公告)号：US20240066741A1
公开(公告)日：2024-02-29
申请号：US18464471
申请日：2023-09-11
Applicant: Frelk Industries Pty. Ltd.
Inventor： Fraser Thomas O'Keefe , Andrew Loch , William McMinn , Michael James Elkington
IPC: B27B5/32 , B23D45/12 , B24B45/00 , B24D5/12 , B24D5/16 , B26D1/00 , B26D1/14 , B26D3/16 , B26D7/00
CPC classification number: B27B5/32 , B23D45/12 , B24B45/006 , B24D5/12 , B24D5/16 , B26D1/0006 , B26D1/14 , B26D3/163 , B26D3/166 , B26D7/0006 , B26D2001/002 , B26D2001/0046 , Y10T83/04 , Y10T83/8878
Abstract: A cutting device for cutting a pipe having a pipe wall. The cutting device includes an elongate carrier having a tool end which is engageable with a power tool and an opposed free end. The device includes a guide wheel located at the free end of the carrier which is loosely mounted thereon for rotation relative thereto, having a bearing surface extending parallel to a longitudinal axis of the carrier. The device also includes a cutting element having a peripheral cutting edge which is located adjacent to the guide wheel being positioned intermediate the guide wheel and the tool end. The cutting element is of greater transverse dimension than the guide wheel so that when the bearing surface bears against an internal surface of the pipe the distance between the cutting edge of the cutting element and the bearing surface enables the cutting element to cut through the pipe wall.
-
Patent Agency Ranking
公开(公告)号：US20240066662A1
公开(公告)日：2024-02-29
申请号：US17895637
申请日：2022-08-25
Applicant: Robert Bosch GmbH
Inventor： Jeremy Rubens , Caitlyn Miklasz , Alexander Hills
CPC classification number: B24B45/006 , B24D5/16
Abstract: A mandrel assembly may be used with a rotary power tool to provide a reliable and stable connection between the rotary tool and a tool accessory. The mandrel assembly provides a quick-connect/quick-release connection between the tool output shaft and the accessory via a clamping action. In particular, the mandrel assembly is movable between a first configuration in which the accessory may clamped tween a clamping element formed on one end of the mandrel and a collar which surrounds the mandrel and a second configuration in which the accessory may be loaded onto or detached from the mandrel assembly. Movement from the first configuration to the second configuration, and from the second configuration to the first configuration each include axial motion in combination with a rotation of the mandrel in the same direction relative to the collar.
-
公开(公告)号：US11890720B2
公开(公告)日：2024-02-06
申请号：US16341429
申请日：2017-10-04
Applicant: Robert Bosch GmbH
Inventor： Bruno Luescher , Andreas Zurbruegg
CPC classification number: B24B45/006 , B23B31/18 , B24B23/028
Abstract: A quick clamping device for a portable power tool includes at least one rotatably drivable output shaft, at least one clamping unit, at least one operating unit, and at least one uncoupling unit. The clamping unit, for tool-free fastening of an insert tool unit to the output shaft, includes at least one movably mounted clamping element for applying clamping force to the insert tool unit in a clamping position of the clamping element. The operating unit is configured to move the clamping element into the clamping position and/or into a release position of the clamping element. In the release position, the insert tool unit can be removed from the clamping unit. The at least one uncoupling unit is configured to uncouple the operating unit from the clamping unit in accordance with the rotational speed of the output shaft.
-
公开(公告)号：US20230076278A1
公开(公告)日：2023-03-09
申请号：US17601815
申请日：2021-05-26
Applicant: EMK CO., LTD.
Inventor： Soon Chul KWON
Abstract: Proposed is a coupler structure of a hand grinder. The coupler structure is fastened to a rotating shaft of a grinder body to enable a machining disc to be more simply and rapidly attached to or detached from the grinder body. Fabrication costs are significantly reduced by simplifying the components associated with the coupler mounted on the rotating shaft of the grinder body. Since the consumable disc is easily attached to and detached from the coupler with one touch, a replacement operation is performed rapidly, thereby significantly improving the efficiency of work.
-
公开(公告)号：US11511356B2
公开(公告)日：2022-11-29
申请号：US16911571
申请日：2020-06-25
Applicant: Black & Decker Inc.
Inventor： Oleksiy P. Sergyeyenko , Sean M. Bailey
Abstract: An oscillating tool includes a housing, a motor housed in the housing and a clamp assembly operatively driven by the motor in an oscillating motion. The clamp assembly can hold an accessory such as a blade or sanding attachment, and the clamp assembly includes a first clamp and a second clamp. The oscillating tool also includes a clamp lever and an actuating lever. The clamp lever is operatively coupled to the first clamp to move the first clamp such that clamp assembly is moved from a closed position to an open position. The actuating lever is operatively coupled to the clamp lever to effect movement of the clamp lever, movement of the clamp lever causing the clamp assembly to move from the closed position to the open position.
-
公开(公告)号：US20220258306A1
公开(公告)日：2022-08-18
申请号：US17668924
申请日：2022-02-10
Applicant: Giovanni FICAI
Inventor： Giovanni FICAI
Abstract: A clamping device for clamping grinding wheels on a driving spindle of a working tool, which includes a rear flange intended to be fitted on the driving spindle in a position proximal to the working tool, wherein the rear flange is provided with a front face with which a first damping element is associated; a front flange intended to be fitted on the driving spindle and provided with a rear face, facing the front face of the rear flange, with which a second damping element is associated; and wherein the front face of the rear flange has a width larger than the rear face of the front flange and the first damping element has a hardness lower than the second damping element.
-
-
-
-
-
-
-
-
-
Search Results
722
records
(took 0.022 seconds)
