Patent application number | Description | Published |
20090095138 | INSULATING SCREWDRIVER HAVING WEAR IDENTIFICATION FUNCTION - An insulating screwdriver includes a handle, a drive shank having a first end mounted in the handle and a second end protruding outwardly from the handle, an insulating jacket mounted on the second end of the drive shank, and an identification insulating sleeve mounted between the second end of the drive shank and the insulating jacket. Thus, when the insulating jacket is worn out or broken due to friction or hit, the identification insulating sleeve is still located outside of the drive shank to provide a secondary insulating effect to the drive shank so as to protect the user when operating the drive shank. | 04-16-2009 |
20100064865 | HAND TOOL HAVING AN ANTISLIP FUNCTION - A hand tool includes a shank having a first end provided with a drive portion and a second end provided with a handle portion, and an antislip structure including an antislip member mounted around the handle portion of the shank. The antislip member of the antislip structure includes a bonding glue bonded onto an outer surface of the handle portion of the shank and a woven wool layer mounted on a surface of the bonding glue. Thus, the woven wool layer of the antislip member has a high friction, so that when the antislip member is mounted on the handle portion of the shank, the handle portion of the shank has a greater antislip feature, thereby facilitating a user holding the handle portion of the shank. | 03-18-2010 |
20100186556 | Socket - A socket assembly includes a socket and at least one magnet. The socket includes a polygonal cavity and at least one groove. The polygonal cavity is defined in the socket. The groove is defined in an internal side of the socket. The groove includes an open end. The magnet is slid into the groove from the open end. | 07-29-2010 |
20100207335 | Tool with a Chuck - A tool includes a handle and a chuck. The chuck includes a socket, a sleeve located on the socket. The socket includes a recess, an aperture in communication with the recess, chutes in communication with the recess, and a groove in an external side. The sleeve includes front, middle and rear shoulders on an internal side. A C-clip is located within the groove. A first stopping ring is abutted against the front shoulder. The C-clip is located between second and third stopping rings. A small ball is located in the aperture of the socket and restrained with the front shoulder. Large balls are movably located in the chutes. A pushing ring is located against the large balls. A first elastic element is compressed between the second stopping ring and the pushing ring. A second elastic element is compressed between the third stopping ring and the rear shoulder. | 08-19-2010 |
20110017027 | Small but Effective Toolkit - A toolkit includes a handle and at least one bit set. The handle is in the form of a plate including a first cavity defined in a middle portion and a second cavity defined in a terminal portion. The bit set includes a bit and a cap non-rotationally provided on the bit. The cap is non-rotationally inserted through the first cavity where only a mild torque is needed. The cap is non-rotationally inserted through the second cavity where a large torque is needed. | 01-27-2011 |
20110079112 | Screwdriver with Changeable Blade - A screwdriver includes a handle, a bit and a chuck for connecting the bit to the handle. The chuck includes a cylinder, two latches, a spring and a control element. The cylinder is securely connected to the handle. The latches are used to keep the bit connected to the cylinder, a spring for pushing the bit from the cylinder when the latches release the bit and a control element operable for causing the latches to release the bit. | 04-07-2011 |
20110258809 | Tool Handle Unit - A handle unit includes a handle, a connector, a bolt, a latch, a button and a spring. The handle includes two lugs. The connector includes a lug. The lug of the connector is located between the lugs of the handle. The bolt is inserted in the lugs so that the handle is pivotally connected to the connector. The latch is connected to the bolt and located in a non-circular opening of the second lug of the handle. The button is connected to the latch. The spring is compressed between the button and the first lug of the handle to make the latch enter a non-circular opening of the connector to position the connector relative to the handle. The button can be pressed to make the latch leave the non-circular opening of the connector. | 10-27-2011 |
20110260415 | Quick and Reliable Tool - A tool includes a chuck connected to a handle. The chuck includes a mandrel including a non-circular cavity defined therein, a slit in communication with the non-circular cavity, a first bore in communication with the non-circular cavity, and a second bore in communication with the slit. A bit with a non-circular profile can be inserted in the non-circular cavity. A flat bit can be inserted in the slit. A ball is located in the first bore. A pin is located in the second bore. A movable sleeve is movably rotationally located around the mandrel and formed with a thread. A rotary sleeve is rotationally located around the mandrel and formed with a thread engaged with the thread of the movable sleeve. By rotating the rotary sleeve, the movable sleeve pushes the ball into the non-circular cavity and the pin into the slit. | 10-27-2011 |
20120103143 | Hand Tool - A hand tool includes a handle, a shank pivotally connected to the handle, and a locking unit operable for retaining the shank in a selected one of first and second angles relative to the handle. The first angle is about 175° to 185°, wherein the second angle is about 115° to 145°. | 05-03-2012 |
20120103148 | Screwdriver for Exerting an Adjustable Maximum Value of Torque - A screwdriver includes a handle, a shaft, a torque-transmitting unit and a torque-adjusting unit. The shaft is partially inserted in the handle. The torque-transmitting unit is located in the handle and operable to transmit an adjustable maximum value of torque to the shaft from the handle. The torque-adjusting unit is partially located in the handle, connected to the torque-transmitting unit, and operable to adjust the adjustable maximum value of torque. | 05-03-2012 |
20120326400 | Chuck - A chuck includes a cylinder, a ball, two spring-loaded pushers and a spring-loaded sleeve. The cylinder includes a hexagonal pocket axially defined therein, a circular pocket axially defined therein, and an aperture transversely defined therein. The ball is movably located in the aperture so that the ball can be inserted partially in the hexagonal pocket. The first pusher is movably located in the circular pocket for pushing a bit. The second pusher is movably located around the cylinder and abutted against the ball. The sleeve is movably located on the cylinder and formed with first and second annular ribs on an internal side thereof. The first rib is abutted against the second pusher while the second rib is abutted against the ball so that the ball is kept in the aperture while the second pusher is retained around the cylinder. | 12-27-2012 |
20130112048 | Screwdriver - A screwdriver-used torque transmission apparatus includes a frame including a slot, an aperture and four cavities. The slot is in communication with the aperture and cavities. A gear includes a non-circular aperture axially defined therein, teeth formed on a side thereof, and teeth formed on an opposite end thereof. The gear is located in the slot. A pawl formed with at least one tooth and a block is located in each of the cavities. A shell includes two pushers formed on an internal side thereof. The shell is rotationally provided around the frame between two one-way modes in each of which a related one of the pushers pushes the blocks of two related ones of the pawls to disengage the teeth of the two pawls from the teeth of the gear. | 05-09-2013 |
20130186244 | Chuck - Disclosed is a chuck including a body, at least one ball and a helical spring. The body includes an axial space defined therein and at least one radial bore with a small open end near the axial space and a large open end in an external side thereof. The ball includes a first section movably placed in the radial bore, a second section movable into the axial space, and a third section movably placed outside the radial bore. The helical spring is placed around the body and in contact with the third section of the ball for biasing the second section of the ball into a recess defined in a bit inserted in the axial space. | 07-25-2013 |
20130214496 | Chuck - A chuck includes a shaft, a ring, a ball and an elastic helical ferrule. The shaft includes a cavity defined therein and an aperture in communication with the cavity. The aperture includes a large open end and a small open end. The ring includes a tunnel for receiving the shaft. The ball includes a first portion for insertion in the tunnel via the large open end of the aperture and a second portion for insertion in the cavity via the small open end of the aperture. The elastic helical ferrule includes sections for contact with the ball and sections in contact with the shaft. | 08-22-2013 |
20140028169 | Toolbox - A toolbox includes two shells and at least one shelf. The shells are pivotally connected to each other. At least one of the shells includes two racks formed thereon. The shelf is formed with two toothed blocks for elastic engagement with the racks so that the shelf can be moved relative to the shell along the racks and kept in a desired position relative to the shell. | 01-30-2014 |