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公开(公告)号：US12076838B2
公开(公告)日：2024-09-03
申请号：US17426703
申请日：2020-02-03
申请人： Wera Werkzeuge GmbH
发明人： Michael Abel , Max Steinmetz
摘要： A screwdriver tool including a gear ratio arranged in a handle for multiplying a rotation angle transmitted from the hand to a blade protruding from the handle. A blocking element can be rotated from a release position, in which a first handle section can be rotated relative to a second handle section for the purpose of quick-action screwing, into a blocking position, in which a blocking element secures the blade to the handle in a rotationally fixed manner. The switching between the release position and the blocking position occurs by means of a push-button arranged in the tip of the handle, which is moved back into its starting position in a spring-loaded manner after being actuated.
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公开(公告)号：US12017330B2
公开(公告)日：2024-06-25
申请号：US17511524
申请日：2021-10-26
发明人： Jack Lin
摘要： The present disclosure is a screwdriver. A rotating seat includes a turntable and a plurality of locking blocks. A driving rod set includes a driving rod and a ratchet gear, and the ratchet gear is located in the turntable. A retaining set includes a tooth block and an elastic piece. The tooth block includes a plurality of teeth, and the elastic piece abuts a driving plate and the tooth block. A driving seat set includes a driving seat and a positioning set, and the positioning set includes a spring and a positioning piece. A locking block is inserted between the tooth block and the ratchet gear, so that the locking tooth is locked or separated from the ratchet gear.
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公开(公告)号：US11772243B2
公开(公告)日：2023-10-03
申请号：US17468681
申请日：2021-09-08
申请人： Yi-Min Li
发明人： Yi-Min Li
CPC分类号： B25B15/04 , B25B23/0035
摘要： A ratchet screwdriver includes a direction-switching apparatus. The direction-switching apparatus includes a cylinder, a toothed wheel, two pawls, two springs and a connector. The cylinder includes a wheel-containing chamber in communication with two pawl-containing chambers. The toothed wheel is inserted in the wheel-containing chamber. The pawls are respectively inserted in the pawl-containing chambers. Each of the springs is connected to one of the pawls in one of the pawl-containing chambers. The connector interconnects the springs so that at least one of the springs keeps at least one of the pawls engaged with the toothed wheel to allow the cylinder to rotate the toothed wheel in at least one of two directions.
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公开(公告)号：US11697859B2
公开(公告)日：2023-07-11
申请号：US16465086
申请日：2017-11-06
发明人： Yueming Li
CPC分类号： C21D9/32 , B25B7/02 , B25B13/462 , B25B15/04 , C21D9/0068
摘要： The present invention discloses a method for manufacturing a manual tool, comprising: performing dual-frequency induction quenching on a first surface of a moment output part or a moment transmission part of the manual tool such that a quench-hardened layer is formed within a first depth range from the first surface of the moment output part to the interior of the moment output part or within a first depth range from the first surface of the moment transmission part to the interior of the moment transmission part, the hardness of the quench-hardened layer being higher than that of the body of the moment output part or the moment transmission part; the dual-frequency induction quenching being configured to simultaneously feed or introduce a high-frequency current and an intermediate-frequency current to the same induction coil to simultaneously heat the first surface of the moment output part or the first surface of the moment transmission part by the high-frequency current and the intermediate-frequency current, and then the moment output part or the moment transmission part being cooled and quenched. The present invention also discloses a manual tool manufactured by the above method. The manual tool subjected to double-frequency induction quenching according to the present invention has good abrasion resistance.
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公开(公告)号：US20190047124A1
公开(公告)日：2019-02-14
申请号：US15731895
申请日：2017-08-21
申请人： Leon Robert Palmer
发明人： Leon Robert Palmer
摘要： The mechanical technology of converting oscillatory motion, into one direction of rotation, as described and claimed in U.S. Pat. No. 5,881,609, while being efficient, useful and having numerous applications, has its disadvantage of not being able to function unless user employs both hands; one hand to apply oscillatory motion to an input, while opposite hand immobilizes the axial rotation of the converting gear-train, in order for the conversion to be activated. Hence, the goal of this documentation, is to teach several different means, that maintain the immobility of axial rotation of the dual-drive gear train in order to activate the dual-drive feature, without the use of either of user's hands, thereby conveniently leaving one of user's hands available for holding a work piece.
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公开(公告)号：US09956672B2
公开(公告)日：2018-05-01
申请号：US14682489
申请日：2015-04-09
CPC分类号： B25B23/0028 , B25B15/00 , B25B15/008 , B25B15/02 , B25B15/04 , B25B23/08
摘要： A screw tightening tool includes a case body, a tool member, and a switching portion. The case body includes a guide portion configured such that a head portion of a screw is inserted therein. The tool member includes an engaging portion including a bit portion configured to engage with the head portion. The switching portion supports the tool member. The switching portion is configured to switch a position of the tool member among a first position, a second position, and a third position. The first position is a position in which the bit portion protrudes to an outside from the case body. The second position is a position in which the bit portion protrudes to the outside from the case body and that is different from the first position. The third position is a position in which the case body houses the bit portion.
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公开(公告)号：US09931741B2
公开(公告)日：2018-04-03
申请号：US14806126
申请日：2015-07-22
发明人： John Nino , David Ivinson
IPC分类号： B25B23/14 , A61B17/88 , A61B19/00 , B25B23/147 , F16D7/04 , A61B17/32 , B25B15/04 , B25B23/142 , A61B90/00
CPC分类号： B25B23/141 , A61B17/320016 , A61B17/8875 , A61B90/03 , A61B2090/031 , B25B15/04 , B25B23/1427 , B25B23/147 , F16D7/044
摘要： A power driven in-line disposable torque-limiting device having a tool shaft extending axially through upper and lower shanks, and a spring to connect to a nut and a drive shaft, the tool shaft extending from the distal end of the device and a drive shaft extending from the proximal end of the device which mates with a power supply to provide rotational force, is disclosed. The face-to-floor gears within the device provide superior heat management capabilities, thereby reducing ablation and melting as compared to traditional gear arrangements. A fortified connector mount supports a power driven shaft.
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公开(公告)号：US09895793B2
公开(公告)日：2018-02-20
申请号：US14967664
申请日：2015-12-14
申请人： Hsuan-Sen Shiao
发明人： Hsuan-Sen Shiao
摘要： A speed-selectable hand tool includes a handle, a cage member fixed to the handle, a shaft member extending into the cage member, a sleeve member sleeved on the shaft member and extending into the cage member, a plurality of transmission members each meshing with the shaft member and the sleeve member, a plurality of pawls mounted to the cage, a knob surrounding the pawls, and an outer casing mounted with the transmission members. The speed-selectable hand tool is operable to serve as a non-ratcheting hand tool or a ratcheting hand tool by rotating the knob relative to the cage member to actuate the pawls. The rotational speed of the shaft member relative to the handle is selectable through operation of the outer casing.
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公开(公告)号：US09833883B2
公开(公告)日：2017-12-05
申请号：US14369893
申请日：2013-09-09
发明人： Weiyi Wang
摘要： The present disclosure is a bi-directional screwdriver, which includes a handle, a main shaft, a gearing which includes a driving gear, a driven gear, a transmission seat and an idle gear which is mounted on the idle gear axle on the transmission seat and is fitted between the driving gear and the driven gear for transferring motion. The handle rotates the driving gear. A grip ring is securely provided outside the idle gear axle. When the grip ring is gripped and the handle is rotated to rotate the driving gear, the driving gear rotates the driven gear in a reverse direction through the idle gear. The driving gear also has a first inside ratchet surface, and the driven gear also has a second inside ratchet surface. And the present invention also includes a reversing means which includes a reversing member, a first pawl member and a second pawl member, and a direction switch, in which the driving gear, the driven gear and the transmission seat are all sleeved on the reversing member, the reversing member is sleeved on the main shaft and able to rotate the main shaft.
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公开(公告)号：US20170197299A1
公开(公告)日：2017-07-13
申请号：US15259758
申请日：2016-09-08
发明人： SHIYU SUN
CPC分类号： B25B15/04 , B25B13/463 , B25B23/16 , B25G1/063
摘要： This disclosure discloses a multifunctional screwdriver, comprising a handle, wherein an end of the handle is detachably inserted with a matching shaft; a ratchet head, in which a matching hole is provided, and the matching shaft is detachably inserted in the matching hole; the ratchet head includes a ratchet shell, a ratchet cap, ratchet teeth, and a plurality of reinforcing rings provided in the ratchet shell, the ratchet teeth pass through the plurality of the reinforcing rings and are fixed on a cylinder in the ratchet shell, the ratchet cap seals the ratchet teeth and the plurality of the reinforcing rings within said ratchet shell, internal of said ratchet shell is also provided with a ratchet mechanism. This disclosure solves the problem that screws/nails may rotate reversely during the operation process and effectively improves the work efficiency of the screwdriver.
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