초록 ▼

An electric stapler comprises an enclosure, a motor, a power transmission device, a working arm pivotally attached to the enclosure, a magazine receiving a plurality of staples and a clinching assembly. A guide device is mounted upon the working arm and rotating therewith. The guide device defines a

An electric stapler comprises an enclosure, a motor, a power transmission device, a working arm pivotally attached to the enclosure, a magazine receiving a plurality of staples and a clinching assembly. A guide device is mounted upon the working arm and rotating therewith. The guide device defines a guideway therein. The magazine is slidably engaged with the working arm. The clinching assembly combines a blade support and a blade, both received in the guideway of the guide device and movable therein. The blade support is engaged with the lever. The power transmission device transmits power and torque from the motor to the clinching assembly. The guide device is mounted upon the working arm and rotates therewith, the blade support slides in the guideway and simultaneously rotates with the guide device, thereby no interferences between the blade support and guide device occurs.

대표청구항 ▼

What is claimed is: 1. An electric stapler comprising: an enclosure defining a receptacle, the receptacle having an entrance for receiving sheets of paper to be binded; a motor within the enclosure; a power transmission device having a gear and being configured to be driven by the motor, the gear e

What is claimed is: 1. An electric stapler comprising: an enclosure defining a receptacle, the receptacle having an entrance for receiving sheets of paper to be binded; a motor within the enclosure; a power transmission device having a gear and being configured to be driven by the motor, the gear eccentrically engaged with a lever; a working arm pivotally attached to the enclosure; a guide device mounted upon the working arm and configured to pivot therewith, the guide device defining a guideway therein; a magazine configured to receive a plurality of staples therein, the magazine slidingly engaged with the working arm; and a clinching assembly comprising a blade support and a blade, the blade fixed on the blade support, the blade support received in the guideway of the guide device and movable therein, the blade support engaged with the lever connecting the power transmission device, the power transmission device transmitting power and torque from the motor to the clinching assembly; wherein the blade support is configured to slide in the guideway of the guide device and to pivot simultaneously with the guide device. 2. The electric stapler as in claim 1, wherein the power transmission device comprises a gear train having a pinion and at least one gear, the pinion being fixed on the motor shaft, and the at least one gear is coaxially coupled to a cam wheel. 3. The electric stapler as in claim 1, wherein the clinching assembly further comprises an anvil attached to the enclosure and a fixing block, the blade being attached to the blade support by the fixing block, the blade support with the blade is received in the guideway of the guide device and movable therein, the blade support pivots with the lever of the transmission device, and the lever is configured to drive the blade support to move up and down along the guide device. 4. The electric stapler as in claim 1, further comprising a reverse device, the reverse device comprising a button and a reverse switch, the button being configured to actuate the reverse switch to drive the motor in a counter rotating direction. 5. The electric stapler as in claim 1, further comprising a support bracket fixed in the enclosure, and a release device to pop-up the magazine, the release device comprising a button, a crank, a reverse switch, a mounting shaft, a retaining shaft, and a twin spring, the button engages with the reverse switch and the crank, the crank and twin spring mounted on the mounting shaft with the working arm and the support bracket, and rotating around the mounting shaft, the mounting shaft connecting to rear portions of the working arm and the support bracket, the retaining shaft mounted in the working arm and engaged with the magazine, the twin spring, and the button. 6. The electric stapler as in claim 5, wherein the release device further comprises a dent defined in the magazine with respect to the retaining shaft for interferential engagement, whereby the magazine is pushed in and the retaining shaft is received in the dent so as to prevent the magazine from detaching. 7. The electric stapler as in claim 1, further comprising a triggering device, the triggering device comprising a pushing arm, a crank arm, a spring, and a triggering switch configured to actuate the motor. 8. The electric stapler as in claim 7, wherein the enclosure supports the pushing arm, the pushing arm comprising a transversal rod and a hanging rod perpendicular to the transversal rod, the transversal rod being attached to the enclosure, the hanging rod being positioned near the entrance of the enclosure, whereby the inserted sheets of paper pushes the hanging rod to actuate the triggering switch and drive the motor. 9. The electric stapler as in claim 8, wherein the transversal rod defines a pair of slots, and wherein two support pins extend from the enclosure and are respectively received in the slots, the transversal rod moves in a distance defined by the slots. 10. The electric stapler as in claim 9, wherein the crank arm is arranged perpendicular to the transversal rod and pivotally attached to the enclosure, one distal end of the crank arm being engaged with one end portion of the transversal arm. 11. The electric stapler as in claim 1, further comprising a controlling device, the controlling device being adapted to stop the motor after a clinching process is completed, the controlling device comprising a stop switch actuated by the cam wheel. 12. An electric stapler comprising: an enclosure defining a receptacle, the receptacle having an entrance for receiving sheets of paper to be binded; a motor; a lever; a power transmission device having a gear and being configured to be driven by the motor, the gear engaged with the lever; a working arm pivotally attached to the enclosure; a guide device mounted upon the working arm and configured to pivot therewith, the guide device defining a guideway therein; a magazine configured to receive a plurality of staples therein, the magazine slidingly engaged with the working arm; a clinching assembly comprising a blade fixed on a blade support, the blade support being located in the guideway and engaged with the lever, the power transmission device transmitting power and torque from the motor to the clinching assembly, wherein the blade support is configured to slide in the guideway and pivot simultaneously with the guide device; a release device configured to at least partially release the magazine so as to facilitate removal of jammed staples or reloading of staples; and a resettable triggering device configured to actuate the motor when the triggering device is pushed by the sheet of papers. 13. The electric stapler as in claim 12, wherein the triggering device comprises a pushing arm, a crank arm, a spring and a triggering switch, the pushing arm is pushed by the sheet of paper, the crank arm is pushed by the pushing arm and turning the triggering switch to start the motor, the spring connects the crank arm and the enclosure to replace the crank arm on condition that the pushing arm no longer touches the crank arm. 14. An electric stapler comprising: an enclosure defining a receptacle, the receptacle having an entrance for receiving sheets of paper to be binded; a motor within the enclosure; a power transmission device having a gear and being configured to be driven by the motor, the gear eccentrically engaged with a lever; a working arm pivotally attached to the enclosure; a guide device mounted upon the working arm and configured to pivot therewith, the guide device defining a guideway therein; a magazine configured to receive a plurality of staples therein, the magazine slidingly engaged with the working arm; a clinching assembly comprising a blade support and a blade, the blade fixed on the blade support, the blade support received in the guideway of the guide device and movable therein, the blade support engaged with the lever connecting the power transmission device, the power transmission device transmitting power and torque from the motor to the clinching assembly; a release device configured to at least partially release the magazine so as to facilitate removal of jammed staples or reloading of staples; and wherein the blade support is configured to slide in the guideway of the guide device and to pivot simultaneously with the guide device. 15. The electric stapler as in claim 14, wherein the electric stapler comprises a support bracket fixed in the enclosure, and wherein the release device comprises a button, a crank, a reverse switch, a mounting shaft, a retaining shaft, and a twin spring, the button engaging with the reverse switch and the crank, the crank and twin spring being mounted on the mounting shaft with the working arm and the support bracket, and rotating around the mounting shaft, the mounting shaft being connected to rear portions of the working arm and the support bracket, the retaining shaft being mounted in the working arm and engaged with the magazine, the twin spring, and the button. 16. The electric stapler as in claim 15, wherein the release device further comprises a dent defined in the magazine with respect to the retaining shaft for interferential engagement, whereby the magazine is pushed in and the retaining shaft is received in the dent so as to prevent the magazine from detaching.