| CHERVON (HK) LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120125171 | BORER FOR AN OSCILLATING TOOL - A borer for forming holes in a workpiece has a fastening portion for mounting on an oscillating tool and a cutter which is connected with the fastening portion. The cutter is driven in a vibrating manner by the oscillating tool such that a feeding direction of the cutter is substantially parallel to a longitudinal axis about which the borer is driven in a vibrating manner. | 05-24-2012 |
| 20120118121 | MITER SAW WITH WORKING LAMP - A miter saw, comprising a base, a worktable for carrying a work piece to be cut, a cutting head pivotally connected to the worktable and positioned in a working position and a stopping position, and a self-hung type working lamp coupled to the cutting head. In one example, a main handle has a rotating pivot on which the self-hung type working lamp is rotatably arranged. The self-hung type working lamp may comprise at least one light source for consistent irradiation of the cutting area upon being powered. The present device further enables the working lamp to rotate with the up and down movement of the cutting head to substantially irradiate the same cutting area to keep the stability of the lighting. It can also achieve the control of the irradiating area with a simple structure and without affecting the overall appearance of the machine. | 05-17-2012 |
| 20120086177 | POWER TOOL HAVING A CLAMPING DEVICE FOR A WORKING ELEMENT - The present disclosure provides a power tool having a clamping device for a working element. The power tool includes an output shaft, a fastening piece having a flange portion for clamping the working element and a protruding shaft substantially perpendicular to the flange portion. A locking assembly comprising a locking member having a first position in which the protruding shaft is locked and a second position in which the protruding shaft is loosened is provided, wherein a pressing member can press the working element between the pressing member and the flange portion when the locking member is in the first position. The power tool can fasten the working element to the output shaft in a simple and reliable manner without the necessary use of such auxiliary tools as a spanner etc. and can achieve a stronger clamping force even under impact conditions. | 04-12-2012 |
| 20120074877 | OVER-TEMPERATURE PROTECTION CIRCUIT FOR POWER DEVICES - An over-temperature protection circuit for a direct current (DC) electric tool includes a current detecting circuit electrically coupled to a battery pack, a power device control circuit electrically coupled to an electric motor of the DC electric tool and a power device for controlling the power state of the circuit. A computation control circuit controls the power supply of the motor according to the circuit current value detected by the current detecting circuit. When the electric motor is not in a speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset first current value. When the electric motor is in the speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset second current value less than the first current value. | 03-29-2012 |
| 20120074657 | HAND-HELD POWER TOOL WITH A QUICK-CLAMPING DEVICE FOR A WORKING ELEMENT - A hand-held power tool with a quick-clamping device for a working element includes a working mandrel for driving the working element, a fastening member for fastening the working element onto the end of the working mandrel, and a locking assembly. The fastening member includes a clamping shaft insertable into the working mandrel and a moving assembly for making the fastening member moveable between a releasing position and a clamping position. The locking assembly includes a floatable clamping component and the clamping component and the clamping shaft are provided with corresponding toothed portions such that engagement and disengagement therebetween is selectively achieved by the relative rotation of the toothed portions. | 03-29-2012 |
| 20120061443 | POWER TOOL WITH AN AUTOMATIC NAIL-FEEDING MECHANISM - An automatic nail-feeding mechanism for a power tool having a striking assembly having a striking rod movable in a linear reciprocating manner feeds a nail to be struck to a front end of the striking rod. The automatic nail-feeding mechanism has a driving part movable between a first position and a second position in a direction of a reciprocating motion of the striking rod and a nail-storing element is provided with nails arranged at a fixed pitch, the nail-storing element being fed a distance of the fixed pitch towards the striking rod when the driving part moves from the first position to the second position and then from the second position to the first position in a stroke of the reciprocating motion thereof. | 03-15-2012 |
| 20120060665 | GUIDING MECHANISM FOR AN ELECTRIC TOOL - A guiding mechanism for an electric tool includes at least two guiding elements at least one of which has a first end portion having at least one protruding portion extending outwards therefrom and the other of which has a second end portion having at least one groove therein which may be engaged with the protruding portion. The groove has a cut-out and the protruding portion has an elastic clamping portion which may be engaged with the cut-out. | 03-15-2012 |
| 20120055309 | VISE CLAMPING TOOL FOR TABLE-TYPE CIRCULAR SAWING MACHINE - A vise clamping tool for a table-type circular sawing machine includes a rotating arm assembly connected to a supporting shaft. The rotating arm assembly has a first rotating arm connected to the supporting shaft and a second rotating arm provided with a clamping component. The second rotating arm is pivotally connected to the first rotating arm around a first pivoting axis oriented along the horizontal direction. | 03-08-2012 |
| 20120055033 | STRING TRIMMER - A string trimmer has a blade storage mechanism wherein the blade storage mechanism has a cavity arranged on the body of the string trimmer for storing a blade. | 03-08-2012 |
| 20120055032 | HEDGE TRIMMER - A hedge trimmer having improved operational balance includes a housing with a front handle and a main handle, a cutting assembly, a motor assembly, a transmission assembly and a switch device arranged on the housing for controlling the start of the motor assembly. The cutting assembly is connected to the housing, the motor assembly and the transmission assembly are arranged in the housing, and the transmission assembly for transmitting the rotation of the motor assembly to the cutting assembly is located between the motor assembly and the cutting assembly. The main handle is located between the motor assembly and the transmission assembly and a main part of the main handle is located above a motor output shaft in the motor assembly. | 03-08-2012 |
| 20120037387 | ELECTRIC TOOL - An electric tool includes a gripping portion, a working portion rotatably connected to the gripping portion about an axis, an output shaft moving in a reciprocating manner and accommodated in the working portion, and a gear box accommodated in the gripping portion for driving the output shaft. The gear box has an opening so that the output shaft is moveable from one end to the other end of the opening when the working portion is rotated relative to the gripping portion about the axis. A leakage-preventing device, such as a bushing, is arranged at the opening so that the lubricating grease can be avoided from leaking. | 02-16-2012 |
| 20120031248 | PULL-ROD LOCKING DEVICE FOR A MITER SAW - An operating element of a locking device is used to switch a locking element into and out of engagement with a pull rod of a miter saw to respectively lock and unlock moveability of the pull rod. | 02-09-2012 |
| 20120017447 | HAND-HELD POWER TOOL FOR PRUNING AND CUTTING VEGETATION AND A METHOD FOR REPLACING BLADES THEREOF - A hand-held power tool for pruning and cutting vegetation and a method for replacing blades thereof. The hand-held power tool has a main body and a work head detachably mounted on the main body. The main body has a housing, a motor placed in the housing, and a first gear transmissively connected with the motor. The work head has a blade assembly and a second gear. The second gear engages with the first gear and is provided with a eccentric member connected with the blade assembly. By arranging one portion of the transmission mechanism on the work head, especially the second gear used for providing the eccentrically rotary output on the work head, the transmission mechanism is directly connected with the blade assembly. When the work head needs to be mounted on the main body, it only needs the second gear to be placed on the mandrel arranged on the main body where it will engage with the first gear. This avoids the need to align and mate the eccentric member arranged on the second gear with the upper and lower blades one by one thereby providing an assembly process that is simple and time-saving while providing a connection that is reliable. | 01-26-2012 |
| 20120006879 | ELECTRIC HAMMER - An electric hammer has a housing having a nozzle portion, a motor and a transmission mechanism arranged in the housing, a striking device, coupled to the motor and transmission mechanism, for moving in a reciprocating manner in the nozzle portion, and a clamping device mounted to the nozzle portion and at least partially extending out of the nozzle portion. The clamping device includes an outer sleeve, an inner sleeve arranged in the outer sleeve, and at least two clamping members arranged on the inner sleeve. The inner sleeve has a first position and a second position with respect to the outer sleeve and the distance between the two clamping members in the first position is less than the distance between the two clamping members in the second position to thereby allow a nail to be released halfway, i.e., when partially struck into a workpiece, in a simple manner. | 01-12-2012 |
| 20110316242 | WORKING COMPONENT FOR MATING WITH MULTIPLE SHAFT ENDS - A working component for mating with multiple shaft ends includes a body portion and a clamping portion which is connected to the body portion and suitable for mounting the working component to the shaft ends. The body portion has a work piece processing area for acting on the work piece to be processed and the clamping portion has a mounting hole with a longitudinal axis Y. The clamping portion includes a support portion and a mating portion which is provided with a plurality of projections which extend in a radial direction vertical to the longitudinal axis Y and which are distributed alternately. | 12-29-2011 |
| 20110316241 | WORKING COMPONENT FOR MATING WITH MULTIPLE SHAFT ENDS - A working component for mating with multiple shaft ends includes a body portion and a clamping portion which is connected to the body portion and suitable for mounting the working component to the shaft ends. The body portion has a work piece processing area for acting on the work piece to be processed and the clamping portion has a mounting hole with a longitudinal axis Y. The clamping portion includes a support portion and a mating portion which are overlapped along the direction of the longitudinal axis Y. | 12-29-2011 |
| 20110302899 | LAWN CARE APPARATUS - An apparatus, such as a lawnmower, includes a cutting device and a chassis for carrying the cutting device. The chassis includes a chassis body, at least one front wheel and at least one rear wheel mounted on the chassis body. A handle is fixedly connected to the chassis and includes a handle body positioned above and behind the cutting device. The apparatus provides a stable support deck by having a body portion of the support deck extend rearwards and upwards from the front wheel to the handle body. | 12-15-2011 |
| 20110302895 | LAWN CARE APPARATUS - An apparatus, such as a lawnmower, includes a cutting device and a chassis for carrying the cutting device. The chassis includes a chassis body, at least one front wheel and at least one rear wheel mounted on the chassis body. A handle is fixedly connected to the chassis and includes a handle body positioned above and behind the cutting device. The apparatus provides a stable support deck by having a body portion of the support deck extend rearwards and upwards from the front wheel to the handle body. | 12-15-2011 |
| 20110302894 | LAWN CARE APPARATUS - An apparatus, such as a lawnmower, includes a cutting device and a chassis for carrying the cutting device. The chassis includes a chassis body, at least one front wheel and at least one rear wheel mounted on the chassis body. A handle is fixedly connected to the chassis and includes a handle body positioned above and behind the cutting device. The apparatus provides a stable support deck by having a body portion of the support deck extend rearwards and upwards from the front wheel to the handle body. | 12-15-2011 |
| 20110302893 | LAWN CARE APPARATUS - An apparatus, such as a lawnmower, includes a cutting device and a chassis for carrying the cutting device. The chassis includes a chassis body, at least one front wheel and at least one rear wheel mounted on the chassis body. A handle is fixedly connected to the chassis and includes a handle body positioned above and behind the cutting device. The apparatus provides a stable support deck by having a body portion of the support deck extend rearwards and upwards from the front wheel to the handle body. | 12-15-2011 |
| 20110291368 | ADAPTOR FOR ADAPTING A WORKING ELEMENT TO AN END OF A POWER TOOL SHAFT - An adaptor for adapting a working element to an end of a power tool shaft. The adaptor includes a central hole passing through the adaptor and has a longitudinal axis, a driving end facing the end of the shaft, and a tool end facing the working element and having a protruding portion, wherein the driving end is provided with grooves, the grooves and bosses formed between the grooves are alternately arranged around the circumference of the driving end, and the bosses have side faces each facing the central hole and located on a plane passing through an edge of a regular polygon and parallel with the longitudinal axis. The adaptor can thus be used to adapt different kinds of working elements to various kinds of driving shafts having different shapes of shaft end. | 12-01-2011 |
| 20110233257 | NAILER DEVICE - A nailer device has a housing containing a motor and a transmission mechanism. The housing has a nozzle portion with a striking rod for striking a nail arranged therein, the striking rod being moved in a reciprocating manner. A rotating shaft is mounted in the housing and the rotating shaft is coupled to the output shaft of the motor through the transmission mechanism. An impact member surrounds the rotating shaft and is moved with the rotating shaft. Corresponding slots are formed on the rotating shaft and the impact member respectively and mate with each other with an engagement member being contained in the corresponding slots. | 09-29-2011 |
| 20110196516 | SAFETY SYSTEM FOR A GARAGE DOOR - A safety system for a garage door movable along a door frame is used to detect an obstacle. The safety system includes a motor device for opening and closing the garage door, a control circuit for controlling the motor to open and close the door, a light emitting device for emitting a light, a light receiving device in communication with the control circuit for receiving the light, wherein the light emitting device and the light receiving device are to be mounted on one side of the door frame, and an optical reflecting device for mounting on the other side of the door frame opposite to the light emitting device and the light receiving device whereby the light receiving device will receive light emitted from the light emitting device and reflected by the optical reflecting device. An optical element is to be mounted near the optical reflecting device for changing the polarization direction of the reflected light, and another optical element is to be mounted near the light receiving device to allow the light in only one polarization direction to pass there through. | 08-11-2011 |
| 20110195643 | POWER TOOL WITH A SHIELD - A power tool includes a housing accommodating a motor therein, a bearing base having a lower surface and an upper end that is connected to the housing, an output shaft that is mounted in the bearing base and protrudes out of the lower surface of the bearing base, a shield that is movably connected with the bearing base, and a locking mechanism for locking the shield relative to the bearing base. The locking mechanism further includes a locking element arranged on the shield and a stop member and the bearing base is formed with a hollow chamber within which the stop member is arranged. | 08-11-2011 |
| 20110174859 | QUICK-CLAMPING MECHANISM FOR ELECTRIC HAMMER - A quick-clamping mechanism for an electric hammer for clamping fasteners such as nails includes a biasing assembly for making the clamping assembly movable between a closed position and an opened position. The clamping assembly includes at least two clamping claws, and each of the clamping claws is pivotally connected to a pivot shaft and the two clamping claws can be pivotally closed and opened, and the closure of the two clamping claws is realized by any one of or the combination of a torsion spring and a magnet. The two clamping claws are pivotally connected to the pivot shaft and fasteners, such as nails and the like, can be clamped or released by the two clamping claws rotating relative to the pivot shaft, so that the quick-clamping mechanism has a simple structure and is easily implemented. The two clamping claws can be automatically closed, after a nail is loaded, by providing a torsion spring or a magnet on the two clamping claws, so that the quick-clamping mechanism can be operated expediently and the nail clamped securely. | 07-21-2011 |
