HANGZHOU GREAT STAR TOOLS CO., LTD.
Hangzhou City, CN
|HANGZHOU GREAT STAR TOOLS CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20150090078||ADJUSTABLE TORQUE SCREWDRIVER - The invention provides an adjustable torque screwdriver, including a torque input assembly and a torque output assembly, and further including a ratchet pair, which comprises a first ratchet and a second ratchet, respectively having circular teeth. The torque input assembly transmits the torque to the first ratchet, and the second ratchet then transmits the torque to the torque output assembly, and the circular teeth are arranged to enable the ratchet pair to slip either clockwise or counterclockwise, but not to slip in the respective opposite direction. The adjustable torque screwdriver also includes an adjusting assembly and an elastic assembly, the elastic assembly exerting pressure to the ratchet to tightly fit the ratchet pair, the adjusting assembly loading and unloading the elastic assembly, thereby adjusting the exerted pressure and the in-between fitting tightness of the ratchet pair, thus adjusting the torque for the ratchet pair to slip.||04-02-2015|
|20140366278||SCREWDRIVER - A screwdriver comprises a handle. A wire stripping component is arranged inside the handle; an opening corresponding to a working portion of the wire stripping component is provided on the handle. Owing to the built-in wire stripping component, the screwdriver has the wire stripping function. Also disclosed is a handle applied to the screwdriver.||12-18-2014|
|20140116205||Bidirectional Mechanical Converting Unit - The present invention discloses a bidirectional mechanical converting unit, comprising: a main shaft; a driving mechanism, which including a driving means and a reversing means which are coupled to each other; and a rotation means for inputting torque, an rotation axis of the rotation means being coaxial with the main shaft, the rotation means and the driving mechanism being coupled to each other, and the driving mechanism delivering the torque to output at the main shall at a predetermined direction, no matter in which direction the rotation means rotates; wherein the predetermined direction can be switched via the reversing means. The present invention is simple structured, not only can efficiently utilizes the movements of the rotation means in either way, but also can switch the rotation direction of the output shaft conveniently upon demand, with easy operations.||05-01-2014|
|20130255087||UTILITY KNIFE WITH REPLACEABLE BLADE - The present invention first provides a utility knife with a replaceable blade, comprising a knife handle, a blade holder, a blade and a locking device that locks the blade in the blade holder. The blade holder and the blade are enabled to switch between a first position and a second position. When the blade holder and the blade are in the first position, the blade is used for cutting operation, and when the blade holder and the blade are in the second position, both the blade holder and the blade are received in the knife handle. The utility knife further includes a restriction means which is thus arranged as, when the blade holder is in the second position and the locking device is in unlocked state, the restriction means is used for preventing the detachment of the blade from the blade holder by confining the movement of the blade relative to the blade holder. The present invention also provides a folding utility knife with a replaceable blade and a retractable utility knife with a replaceable blade, and a utility knife with multiple tools and replaceable blades.||10-03-2013|
|20130249154||SPRING CLAMP - A spring clamp includes a first body which comprises a gripping portion and a clamping portion, a second body which comprises a gripping portion and a clamping portion, a first pivot element which pivotally connects the first body and the second body, and a locking mechanism which comprises at least a pair of friction pair components. The first friction pair component is arranged on the first body, and includes a first friction pair element; and the second friction pair component is arranged on the second body, and includes a second friction pair element. The first and second friction pair elements rub against each other to effect the locking function. The rubbing of the friction pair elements occurs mainly in the plane perpendicular to the first pivot element axis.||09-26-2013|
|20130180367||ADJUSTABLE WRENCH - The invention discloses an adjustable wrench, including a wrench body and a worm; the wrench body includes a handle and a working part; the working part includes a fixed member, a movable member and a track; the lower portion of the movable member, whose bottom edge is arranged with a tooth part, is arranged in the track; the working part also includes a through hole in which the worm is arranged for meshing with the tooth part; when the worm is rotated, the worm interacts with the tooth part and drives the movable member to move in the directions towards or away from the fixed member; wherein the worm has at least two starts of threads. The adjustable wrench of this invention enables swift adjustments to the spacing between the movable member and the fixed member and increases the bearable torque of the worm.||07-18-2013|
|20120260505||UTILITY KNIFE AVOIDING ACCIDENTAL DETACHMENT OF BLADE - The invention discloses a utility knife preventing its blade from accidental detachment. Prior utility knives may lose constraint on the blade due to tilting of the retaining member when the blade receives external force from the blade holder pulling outward, causing the blade to detach accidentally from the blade holder. In the present invention, the line of the action force in the engagement area of blade and retaining member extends over the axis of axle pin where the retaining member is mounted, so that when the blade receives external force pulling it outward from the blade holder, a counterclockwise torque is formed to the retaining member to allow the retaining member constrain the blade more tightly and thus prevent the blade from accidental detachment.||10-18-2012|
|20120222525||TOOL HANDLE AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a tool handle and manufacturing method thereof. The tool handle includes a handle body with a gripping part, and a covering layer that covers a part or whole of the gripping part. The covering layer is made of an artificial leather material. The manufacturing method for the tool handle includes the step of covering the artificial leather material on the gripping part of the handle body, so as to form the covering layer that covers a part or whole of the gripping part. The tool handle and manufacturing method thereof according to the present invention can effectively improve the anti-skid and shock absorbing performance of the tool handle and reduce molding dies and injection molding steps. Therefore, the present invention is simple in manufacturing method and low in production cost.||09-06-2012|
|20120111157||PLIERS WITH ADJUSTABLE JAW SPAN - Pliers with adjustable jaw span have a first member (||05-10-2012|
Patent applications by HANGZHOU GREAT STAR TOOLS CO., LTD.