The present invention relates to a moving mechanism of an electric stapler, particularly relates to a moving mechanism of an electric stapler promoting positioning accuracy.
There is known an electric stapler device in which a plurality of electric staplers are mounted to a guide shaft or a guide rail, and the electric staplers are moved in conformity with a size of a sheet of paper to thereby change a pitch of striking staples. According to an electric stapler of this kind, a driver unit and a clincher unit are separated, the driver unit is mounted to one of two guide shafts or guide rails arranged in parallel with each other, the clincher unit is mounted to other thereof to make the driver unit and the clincher unit opposed to each other by interposing a sheet table, and the driver unit and the clincher unit are moved on the guides in synchronism with each other by a moving mechanism.
The moving mechanism is a publicly-known synchronizing mechanism in which wires or timing belts are hung around pulleys arranged at respectively both ends of the guides arranged in parallel with each other, the pulleys on a side of the driver unit and the pulley on a side of the clincher unit are connected by a single pulley shaft, and the driver unit and the clincher unit are respectively coupled to a single point of the timing belts or wires, and by driving to rotate the pulley shaft, a pair of the electric staplers symmetrically come closer to each other or remote from each other to thereby change an interval therebetween.
Although the moving mechanism of the electric stapler of the background art is constituted such that the two electric staplers symmetrically come closer to each other or remote from each other by the synchronizing mechanism using the wires or the timing belts, it takes a lot of man-hours for positioning the driver unit and the clincher unit when they are assembled, moreover in some cases, a binding failure may occur by a positional shift between the driver unit and the clincher unit caused by an ageing change.
Hence, there poses technical problems to be resolved in order to resolve a concern of a binding failure by promoting accuracy of positioning a driver unit and a clincher unit and promote productivity by facilitating assemble operation, and it is an object of the invention to resolve the above-described problems.
The invention is proposed to achieve the above-described object, and there is provided a moving mechanism of an electric stapler characterized in a moving mechanism of an electric stapler for traveling a driver unit and a clincher unit which are separated from each other respectively along slide guide members, constituted such that the two slide guide members are respectively formed with positioning holes or positioning grooves, the driver unit and the clincher unit are provided with locking means of slide pins or levers engaged with the positioning holes or the positioning grooves, the clincher unit and the driver unit are provided with connecting means comprising slide pins and pin holes, the driver unit and the clincher unit are formed to be able to switch to two states of connecting the driver unit and the clincher unit and releasing the driver unit and the clincher unit from being connected by moving the slide pins, switching means for driving the locking means and the slide pins are provided, by connecting the clincher unit and the driver unit and releasing the locking means from being engaged, the clincher unit and the driver unit can integrally be moved.
Further, there is provided the moving mechanism of an electric stapler constituted such that a motor-driven cam is provided to the clincher or the driver unit including the locking means and the slide pin of the connecting means, and the connecting means and the locking means are integrally driven by the motor-driven cam.
Further, there is provided the moving mechanism of an electric stapler constituted such that the slide pin of the connecting means provided at the clincher unit or the driver unit presses the slide pin or the lever of the locking means of an opposed side in connecting the clincher unit and the driver unit to release the clincher unit and the driver unit from being engaged.
a) and
a) and
a) and
a) and
Further, in notations of the drawings, numeral 1 designates a driver unit, numeral 2 designates a clincher unit, numeral 3 designates a slide guide table, numeral 4 designates a slide guide shaft, numeral 7 designates a pin hole, numeral 8 designates a pin hole, numeral 9 designates a connecting pin, numeral 10 designates a positioning pin, numeral 11 designates a cam pin, numeral 12 designates a cam plate, numeral 13 designates a pin hole, numeral 15 designates a lever, numeral 16 designates a positioning groove, numeral 17 designates a grooved roller, numeral 18 designates a grooved roller, numeral 19 designates a timing belt, numeral 20 designates a motor, and numeral 21 designates an arm portion.
A detailed description will be given for one embodiment of the invention referring to the drawings as follows.
A ceiling plate 5 and a bottom plate 6 of the clincher unit 2 are formed with the pin holes 7, 8, the connecting pin 9 for connecting with the driver unit 1 is inserted into the pin hole 7 on an upper side, and the positioning pin 10 for fixing a position of the clincher unit 2 is inserted into the pin hole 8 on a lower side. End portions of the connecting pin 9 and the positioning pin 10 are respectively provided with horizontal head plates 9a, 10a, and the head plates 9a, 10a are brought into contact with two upper and lower faces of the cam pin 11. The cam pin 11 is provided at a side face of the cam plate 12 arranged at sides of the connecting pin 9 and the positioning pin 10, and when the cam plate 12 is rotated by a motor (not illustrated), the cam pin 11 is circularly moved on a vertical plane.
In an initial state shown in
As shown by
a) and
Next, operation of the moving mechanism will be explained. When the two electric staplers are moved, the cam plate 12 is rotated by 180 degrees from the initial state of
Further, when two sets of the clincher units 2 and the driver units 1 are moved respectively from A positions to B positions or from B positions to A positions by driving the motor 20 shown in
Further, although according to the above-described embodiment, the connecting pin 9 and the positioning pin 10 are separated from each other, as shown by
As explained above, the moving mechanism of the electric stapler of the invention is provided with the mechanism of connecting/releasing the clincher unit and the driver unit and therefore, the clincher unit and the driver unit can integrally be moved by the moving mechanism of a wire, a belt or the like arranged only on one side of the clincher unit and the driver unit, and a constitution thereof is more simplified and assembling thereof is more facilitated than those of the moving mechanism of the background art in which wires or belts are arranged on both sides of the clincher unit side and the driver unit side. Further, positioning means are provided to both of the clincher unit and the driver unit and therefore, positioning in assemble operation is simple, operability is promoted, a positioning shift is not brought about after assembling, and stability and reliability are also promoted.
Number | Date | Country | Kind |
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2002-188886 | Jun 2002 | JP | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/JP03/08001 | 6/24/2003 | WO | 00 | 12/22/2004 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2004/002696 | 1/8/2004 | WO | A |
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2-219601 | Mar 1990 | JP |
Number | Date | Country | |
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20050230452 A1 | Oct 2005 | US |