Abstract: A staple apparatus includes a support tray for stacking sheets into a sheet bundle, a head unit arranged at a position away from the support tray and having a drive device for driving a staple into the sheet bundle, an anvil unit arranged on the support tray for bending the staple driven into the sheet bundle, and a staple operating device for pressing the head unit against the anvil unit and for separating the head unit from the anvil unit. A cover member is arranged to freely open and close a space for the stapling operation between the head unit and the anvil unit, and a control device controls the staple operating device not to operate when the cover member is not positioned at the closed position.

Abstract: A combustion-powered nail gun drives nails into a workpiece when both a head switch and a trigger switch are turned ON while a safety switch is turned ON. The nail driving operation cannot be performed if the safety switch is not ON even if both the head switch and the trigger switch are ON. The head switch is turned ON when a push lever is urged against the workpiece. Fuel/air mixture in a combustion chamber is ignited when the head switch and the trigger switch are turned ON irrespective of an order in which the head switch and the trigger switch are turned ON, whereby “successive-shot driving” can be performed in which the trigger switch is maintained in its ON position while successively driving a plurality of nails at different locations of the workpiece by repeatedly pushing and releasing the push lever toward and away from the workpiece.

Abstract: A spring (18) is interposed between the sliding carriage (6) carrying a hammer (13) for driving-in and the actuator rod. The spring is mounted on the head (15) of a push rod, which carries a push contact (16) surrounded by an insulating washer (17). A O pad (20) is housed in the central opening of another insulating washer (19) supported by the spring. These detection means are activated when the spring is compressed in response to the stapling effort required at the moment when a staple comes up against the frame mouldings to be assembled. Application in frame-assembling machines.

Abstract: A stapler apparatus is configured for recovering a binding mechanism reciprocally driven by a drive motor to an idling position region by inertial movement of the binding mechanism after a stop of the drive motor. The stapler apparatus includes an actuating position sensor that detects an actuating position of the binding mechanism before reaching the idling position region to attain a timing to stop the drive motor.

Abstract: A safety control circuit for a direct current electromotive nail driver comprises: a direct current power source for supplying power to the circuit; a control and protecting unit having a security switch, a trigger switch and a stop switch; and a motor for driving an object. When the security switch is turned on and then the trigger switch is pressed, the control and protecting unit will receive a signal from the trigger switch so as to conduct the motor and thus the motor operates to drive an object. When the motor operates through a predetermined time period, the stop switch will actuate a protection function of the control and protecting unit so that the motor cannot operate until the security switch is actuated again.

Abstract: The present invention is directed to a combustion-operated setting device for driving fastening elements such as nails, bolts and pins into a substrate, with a setting mechanism comprising a driving piston (15) which is supported to be displaceable in a guide, and with an electronic monitoring device for monitoring the status of the setting device. At least one sensor array (21, 22) is arranged at the guide for generating a measurement data pattern which can be evaluated by the monitoring device.

Abstract: A control module advantageously reduces cost and enhances reliability, design flexibility, ease of assembly, and performance of a flywheel operated hand tool. The control module includes a thin film printed circuit with non-contact speed sensing of a flywheel to more accurately set the target speed and control transfer kinetic energy thereof to a fastener, achieving a desired depth regardless of variations in component performance and battery voltage. The printed circuit also includes long service life thin film switches for responding to trigger and safety inputs. Furthermore, the control module responds to a user speed selection and to preset speed selection ranges to reconfigure the controls as appropriate to constraints of a fastener drive assembly and to user preferences.

Abstract: A fastening tool that drives a fastener into a work-piece. The tool includes a motor that is connected to a transmission. The transmission includes a flywheel. The tool also includes a driver mechanism that is adapted to drive the fastener into the work-piece. The flywheel is connected to the driver mechanism when the flywheel is in a flywheel firing position. The tool includes a control module that detects a flywheel position and compares the flywheel position to the flywheel firing position. The control module also adjusts the flywheel position based on the comparison. The control module ensures that the transmission has enough rotations to ensure that enough momentum can be generated to drive the fastener into the work-piece.

Abstract: A self-diagnosing pierce nut installation apparatus including an installation head attached to an upper die member of a die press having a reciprocating plunger driving a pierce nut against a panel, piercing a slug from the panel upon closing of the press and a rod telescopically received in the plunger resiliently biased through the nut bore if a slug is pierced from the panel or against the panel if not pierced, and a sensor sensing axial movement of the rod, stopping the press if the rod engages the panel. A die located in the lower die member includes a slug sensor confirming receipt of the panel slug through the die member.

Abstract: An electric nailing gun is disclosed to use a sensor in the nail magazine and to connect the sensor to a control circuit such that when a magazine follower is moved to a predetermined position in the nail path, the sensor sends a control signal to the control circuit to drive a counter to start counting the number of striking actions of the plunger, and the control circuit controls the electric nailing gun to reduce the plunger impact when the counting of the counter reaches a predetermined value.

Abstract: A device for executing a number of actions, such as driving in nails, on a planar section, for example a wall element, for fixing a covering panel or the like on the planar section. A carriage is displaceable longitudinally over the planar section. A number of the action device are mounted on one side of a carriage and are displaceable individually transversely of the planar section. A number of the action devices are mounted on the other side of the carriage and are displaceable together with one another transversely of the planar section.

Abstract: Disclosed is a nailing machine capable of indicating an existence or non-existence and the residual quantity of a nail in a cartridge. The nailing machine includes a main body, a nose portion and a cartridge. The main body includes a trigger lever mounted to a lower portion of a grip portion. The cartridge has a pressing plate and a pressing spring. The nailing machine further comprises a displaying unit having a display plate, a connecting plate and a trigger lever stopper. An alarming unit includes a first and a second ground plates, a battery and a recognition part. The conductive plate selectively contacts with the first ground plate and the second ground plate. The trigger lever may be stopped in accordance with the detection result after notifying a worker that the nail is exhausted with generating an audible alarm sound and a visual alarm light.

Abstract: A document handling machine comprises a stapling device, and a staple cartridge operatively connected to the stapling device and including a staple estimating device adapted for measuring rotational movement of a roll of staples held within the staple cartridge and for estimating a quantity of the staples based on the measured rotational movement.

Abstract: A cartridge comprises a sheet staple detecting mechanism (60) for detecting presence and absence of sheet staples (ST) stacked on a bottom having an opening (23A). The sheet staple detecting mechanism (60) includes a detected member (30) having leg parts (32, 32, 33 and 33), which are disposed on the uppermost surface of the stacked sheet staples (ST) and configured to be inserted in the opening (23A) when the sheet staples (ST) are not disposed on the bottom (23), an actuator (40) rotated at the time the leg parts (32, 32, 33 and 33) are inserted in the opening (23 A), and a micro-switch (50) for detecting the rotation of the actuator (40).

Abstract: In an electric stapler which includes: a passage (4) formed in a magazine portion (2) of the stapler body (1), for attaching and detaching a staple cartridge (3); and sheet staples (a) accommodated in the staple cartridge (3), wherein both side portions of the lead staple (a1) and the following staples of the sheet staples (a) are successively bent and stricken, a staple detection sensor (7), both sides of the end of the actuator (8) of are tapered, is arranged so that both side portions can be directed to an entrance of the passage (4) and the end of the staple detection sensor (7) can be engaged with an upper or a lower face of the sheet staples (a) of the staple cartridge (3) attached into the passage (4). The actuator (8) is swung and tilted in the perpendicular direction to the longitudinal direction of the passage (4) and biased by a spring so that it can obliquely rise at all times.

Abstract: The present invention relates to a manually operated working tool such as an internal combustion operated setting tool for driving in fastening elements such as nails, bolts, pins into a magnetizable substrate, having an inductive metal detector assembly (20) with at least one excitation coil arrangement (21) and evaluation means. A means for generating an alternating current for the excitation coil arrangement (21) having at least two consecutive frequencies fn from a start frequency f0 to an end frequency fmax is provided on the inductive metal detector assembly (20).

Abstract: Disclosed is a nailing machine capable of indicating an existence or non-existence and the residual quantity of a nail in a cartridge. The nailing machine includes a main body, a nose portion and a cartridge. The main body includes a trigger lever mounted to a lower portion of a grip portion. The cartridge has a pressing plate and a pressing spring. The nailing machine further comprises a displaying unit having a display plate, a connecting plate and a trigger lever stopper. An alarming unit includes a first and a second ground plates, a battery and a recognition part. The conductive plate selectively contacts with the first ground plate and the second ground plate. The trigger lever may be stopped in accordance with the detection result after notifying a worker that the nail is exhausted with generating an audible alarm sound and a visual alarm light.

Abstract: A combustion power framing tool the invention has a nosepiece for driving fasteners, a housing and a combustion chamber that produces primary power held within the housing. A fastener supply, such as a magazine, is attached to the housing to supply the fasteners. The tool has detects a condition and produces a signal based on that condition, then causes the primary power to vary in relation to the signal, returning the primary power to full power following driving of the fastener.

Abstract: A nail-hammering apparatus includes a hammer, a first solenoid, a second solenoid and a control device. The hammer can hammer a nail into a workpiece. The first solenoid can be turned on so as to drive the hammer. The second solenoid can be turned on in order to drive the hammer after the first solenoid. The spring tends to bias the hammer to its original position when the second solenoid is turned off. If the nail has not entirely enters the workpiece, the control device turns on the second solenoid so as to drive the hammer one more time.

Abstract: A speed controller operates a DC-powered fastener drive assembly to efficiently drive fasteners from a DC power supply, thereby achieving a fully portable hand tool. In particular, the speed controller accelerates a flywheel with a DC motor to a target speed appropriate for the type of fastener and user selection. Thereafter, the speed controller causes the kinetic energy from the flywheel to be imparted to a linearly moving fastener driver. The speed controller is responsive to the rotational speed of the flywheel to ensure a consistent depth of drive and to actuate a clutch for an appropriate amount of time to couple the flywheel to the fastener driver. Thereby, consistent drives are achievement across a range of operating conditions (e.g., battery state of charge, type of fastener, mechanical tolerances and wear, motor performance, etc.).

Abstract: A universal and precise stapling assembly is provided and includes (a) a moveable stapling head for driving staples at precise locations through an aligned set of sheets on any one of plural types of alignment apparatus; (b) a drive device coupled to the stapling head for moving the stapling head relative to the any one of plural types of alignment apparatus and the aligned set of aligned sheets on the any one of the plural types of alignment apparatus; (c) sensors for sensing a position of the aligned set of sheets; and (d) a programmable controller connected to the drive device, to the sensors, and to the stapling head, and including calculating capability for precisely calculating a precise staple location responsively to a type of any one of the plural types of alignment apparatus and to the secured position of the aligned set of sheets, thereby reducing staple mislocation due to a tolerance stack up from components of the stapling head and components of any one of the plural types of alignment apparatus.

Abstract: This invention relates to the design of a pin clutch to allow for coupling of a rotational shaft to an output mechanism in a synchronous fashion. Specifically, this is related to impacting or operations requiring intermittent or semi-intermittent coupling of an input mechanism or shaft to an output mechanism or shaft. Devices of this nature include fastening tools, throwing mechanisms and other devices in which input energy is built up during a portion of a cycle followed by the coupling and release of that energy to an output mechanism.

Abstract: A portable electric nailing gun operating from a power source. The motor accelerates a flywheel which at the appropriate energy state is coupled through a mechanism to an anvil acting directly on the nail. The motor accelerates a flywheel that is then clutched to the output anvil causing the nail to be driven. The position of the output anvil is sensed and once the nail is driven, the motor is dynamically braked reducing the excess energy in the flywheel. This method uses a highly responsive motor and power source which enables the motor to come up to speed, drive the nail and return to a low energy condition in less than 2 seconds. The electrical control circuit and brake allow precise control and improve safety. The power source is preferably a rechargeable low impedance battery.

Abstract: Jigs (52 to 57) are respectively set on upper and lower holders (21, 31) of a button attaching apparatus instead of upper and lower dies; relative position of the upper and the lower holders (21, 31) is adjusted while upper and lower springs (211, 317) are disabled; while the upper spring (211) is kept disabled, the lower spring (317) having stronger biasing force is enabled to adjust the lower spring; and the upper spring (211) is enabled to adjust the upper spring.

Abstract: A pallet assembly device is disclosed that is configured to automatically position pallet components together and to automatically secure such components to each other. Furthermore, the pallet assembly device of the invention is preferably fed stacks of pallet components, and thereby eliminates the need for an assembly operator to manually position various pallet components in a jig or carriage. Yet further, the device preferably comprises a plurality of wheels that are positioned to simultaneously engage opposite sides of a pallet component and comprises a drive motor. The drive motor is preferably operatively connected to at least one of the plurality of wheels in a manner allowing the drive motor to rotationally drive and rotationally stop at least one of the plurality of wheels so as to move the component along an assembly path. A method of assembling pallet components using a pallet assembly device is also disclosed.

Abstract: An automatic nail fastening device which is capable of adjusting the spacing and patterning of the nails is presented which is especially useful for nailing decking to a roof. The device is also capable of identifying metal having a predetermined thickness in the underlying substrate so that nailing into such metal contained in the underlying substrate can be avoided.

Abstract: A tool for driving fasteners into a workpiece includes a fastener supply device removably attachable to the tool and supplying the fasteners to the channel, and a workpiece contact element. There is a first alignment mechanism on the nosepiece and a second alignment mechanism on the workpiece contact element. A threaded adjusting member located on the workpiece contact element and a threadable adjustable mechanism on the nosepiece are configured engage with each other, such that movement of the workpiece contact element due to rotation of the threadable adjustable mechanism causes the first alignment mechanism to engage the second alignment structure. The tool has a sensor held by the housing and a detector within the fastener supply configured to sense the length of the fasteners and communicate the length to the sensor.

Abstract: A spring (18) is interposed between the sliding carriage (6) carrying a hammer (13) for driving-in and the actuator rod. The spring is mounted on the head (15) of a push rod, which carries a push contact (16) surrounded by an insulating washer (17). A O pad (20) is housed in the central opening of another insulating washer (19) supported by the spring. These detection means are activated when the spring is compressed in response to the stapling effort required at the moment when a staple comes up against the frame mouldings to be assembled. Application in frame-assembling machines.

Abstract: A combustion tool employing a replaceable pressurized fuel cell includes a fuel condition monitor system for monitoring and indicating fuel cell fuel condition. The fuel condition monitor system includes a fuel condition monitor for monitoring at least one of fuel cell pressure and fuel flow from the fuel cell, a control unit connected to the monitor for receiving fuel condition data sensed by the monitor, comparing the sensed data with preset values and determining fuel level in the fuel cell based on the determinations, a metering valve connected to the control unit, providing the exact amount of fuel based upon fuel cell condition, and an indicator connected to the control unit for providing an indication of fuel level.

Abstract: A motor-driven stapler is disclosed which comprises a table (100) arranged as opposed to a staple drive portion for driving a staple and provided movably up and down on a stapler body, and a driver for driving a staple from the staple drive portion to sheets of paper when the table (100) has been moved to press the sheets of paper against the staple drive portion. The table (100) is moved up and down by allowing the table (100) to rotate about axles (27) that are provided on the side plate portions (24, 25) of the frame (12) of the stapler body (10).

Abstract: Outer shape dimensions of a staple cartridge for binding 100 sheets and a staple cartridge for binding 50 sheets are made the same. Staple detecting holes are provided at bottom faces of both of them, and a cartridge identifying hole for identifying a type of a cartridge is formed at one of them. A cartridge identifying sensor and a staple detecting sensor are provided at the inside of an electric stapler. Charge of the staple cartridge, determination of a cartridge type and presence or absence of a staple at the inside of the staple cartridge are detected by signals of the sensors.

Abstract: An automatic nail fastening device which is capable of adjusting the spacing and patterning of the nails is presented which is especially useful for nailing decking to a roof. The device is also capable of identifying metal having a predetermined thickness in the underlying substrate so that nailing into such metal contained in the underlying substrate can be avoided.

Abstract: A portable electric nailing gun operating from a power supply. The motor accelerates a flywheel, which at the appropriate energy state is coupled through a mechanism to an anvil acting directly on the nail. The actuation is governed by a control circuit and initiated from a trigger switch. The stored energy delivered from the motor is coupled to the output anvil drives the nail. At least one position of the output anvil is sensed and once the nail is driven, the power is disconnected from the motor. This method uses a direct acting clutch and a harmonic motion nailing mechanism to reduce wear and increase robustness of the nailer. Elastic elements are used to limit stresses during the impact periods. The electrical control circuit and sensors allow precise control and improve safety. The power supply is preferably a rechargeable low impedance battery pack.

Abstract: A motor-driven stapler is disclosed which comprises a table (100) arranged as opposed to a staple drive portion for driving a staple and provided movably up and down on a stapler body, and a driver for driving a staple from the staple drive portion to sheets of paper when the table (100) has been moved to press the sheets of paper against the staple drive portion. The table (100) is moved up and down by allowing the table (100) to rotate about axles (27) that are provided on the side plate portions (24, 25) of the frame (12) of the stapler body (10).

Abstract: A combustion power framing tool the invention has a nosepiece for driving fasteners, a housing and a combustion chamber that produces primary power held within the housing. A fastener supply, such as a magazine, is attached to the housing to supply the fasteners. The tool has detects a condition and produces a signal based on that condition, then causes the primary power to vary in relation to the signal, returning the primary power to full power following driving of the fastener.

Abstract: An explosive powder charge-operated setting tool having a drive piston (4) for driving a pin-shaped nail (5) in a constructional component in a single drive-in step, and a control circuit (I) for controlling a setting depth (T) and including control electronics (7), a set point generator (8) for setting the setting depth (T), a position-determining sensor (9) for determining a position of a lower dead point (uTP) of movement of the drive piston (4), and a regulator (10) for an automatic adjustment of a motion energy of the drive piston; and a method of controlling the setting depth (T).

Abstract: An electrically powered stapler has inner side walls incorporating a staple carrier for feeding a cartridge of staplers towards a stapling station where one of the staples in the cartridge is positioned for being driven by an electric motor through a number of sheets held in the station. The stapler includes a staple carrier-release button for mechanically releasing the staple carrier from an in-use stapling position (for the purpose of refilling the staple carrier with a staple cartridge). An electrical disable switch is associated is with the staple carrier to disable the motor if the staple carrier is not in the in-use stapling position.

Abstract: A stapler with a tab magazine includes a staple magazine parallel to a workpiece surface, a staple driving head and an electric drive for effecting a forwarding movement of the staple driver head. The driver head is controlled by a trigger and electric drive circuit. A tab magazine is provided along side the tab driver head for receiving a plurality of substantially planar separate tabs in a stack of the tabs arranged each on top of the next. A drive lever pivots in a plane parallel to the surface to move a tab at the forwardmost position to the stapling position such that the staple passes through the tab at the stapling position to fasten the tab to the workpiece. The lever is driven by an electric driver controlled by a timing circuit at a timed relation relative to the driving action of the previous tab. In another arrangement, the tab magazine is replaced by a roll of fiber reinforced tape so that a complete strip of tape underlies the staples and they all can be removed in a single pulling action.

Abstract: A motor-operated stapler capable of narrowing the range of a home position zone of a cam, is provided. The motor-operated stapler includes a driver 36 which reciprocates and drives out a staple toward a sheet bundle and a drive-out mechanism 30 which causes the driver 36 to operate. A driver cam 32 is mounted on a driving shaft 31 in the drive-out mechanism 30 and the driver 36 is reciprocated once by rotation of the driver cam 32. A brake mechanism 60 is used which applies a brake mechanically to the rotation of the driving shaft 31 when the driver 36 returns to its home position.

Abstract: A portable electric nailing gun operating from a power supply. The motor accelerates a flywheel which at the appropriate energy state is coupled through a mechanism to an anvil acting directly on the nail. The actuation is governed by a control circuit and initiated from a trigger switch. The motor accelerates a flywheel that is then clutched to the output anvil causing the nail to be driven. The position of the output anvil is sensed and once the nail is driven, the motor is dynamically braked reducing the excess energy in the flywheel. This method uses a highly responsive motor and power supply which enables the motor to come up to speed, drive the nail and return to a low energy condition in less than 2 seconds. The electrical control circuit and brake allow precise control and improve safety. The power supply is preferably a rechargeable low impedance battery.

Abstract: A stapler for driving a staple into a sheet stack. The stapler includes a first cartridge configured to receive a first staple defined by a first leg length, and a second cartridge configured to receive a second staple defined by a second leg length. The stapler includes a stapling head configured to drive the staples into the sheet stack, and a cartridge positioning actuator configured to selectively position either the first or the second cartridge over a predetermined position on the sheet stack. The stapler can have a single stationary stapling head, and the cartridges can be moved in position over the stapling head. Alternately, each cartridge can have its own associated stapling head. The stapler can include a sensor to determine the thickness of the sheet stack. A controller can receive a thickness signal from the sensor and determine which of the cartridges to position over the sheet stack.

Abstract: A universal and precise stapling assembly is provided and includes (a) a moveable stapling head for driving staples at precise locations through an aligned set of sheets on any one of plural types of alignment apparatus; (b) a drive device coupled to the stapling head for moving the stapling head relative to the any one of plural types of alignment apparatus and the aligned set of aligned sheets on the any one of the plural types of alignment apparatus; (c) sensors for sensing a position of the aligned set of sheets; and (d) a programmable controller connected to the drive device, to the sensors, and to the stapling head, and including calculating capability for precisely calculating a precise staple location responsively to a type of any one of the plural types of alignment apparatus and to the secured position of the aligned set of sheets, thereby reducing staple mislocation due to a tolerance stack up from components of the stapling head and components of any one of the plural types of alignment apparatus.

Abstract: A stapler is provided with a frame and a head assembly pivotally disposed in the frame between a first open position and a second clamped position. The head assembly contains all of the operative elements of the stapler necessary to carry out a stapling operation and is biased toward the open position by a biasing member disposed between the head assembly and the frame. These operative elements include a staple driving mechanism, a motor fixed to the head assembly, a cam member connected to the motor and rotated thereby. The cam member contains at least three surfaces that simultaneously form and drive staples, pivot the head assembly in the frame, and actuate a microswitch controlling power to the motor. The cam member cooperates with a first bar disposed between the frame and a spring assembly to permit the first bar to flex to accommodate varying thicknesses or amounts of paper to be stapled.

Abstract: A motor-driven stapler is disclosed which comprises a table (100) arranged as opposed to a staple drive portion for driving a staple and provided movably up and down on a stapler body, and a driver for driving a staple from the staple drive portion to sheets of paper when the table (100) has been moved to press the sheets of paper against the staple drive portion. The table (100) is moved up and down by allowing the table (100) to rotate about axles (27) that are provided on the side plate portions (24, 25) of the frame (12) of the stapler body (10).

Abstract: A machine for automatically applying snap fasteners on a support, such as a fabric, comprises a sensor for sensing the instantaneous value of the riveting pressure applied to the machine punch elements. With respect to prior machines for automatically applying snap fasteners, the machine according to the invention provides the advantage that the snap fastener can be applied to a fabric with a proper riveting pressure, so as to prevent both excessive pressures, which could damage the fabric, and insufficient pressures, which could not provide a proper connection of the snap fastener on the support, from being generated.

Abstract: A sheet post-processing apparatus includes a head unit and an anvil unit movably disposed in a direction traversing the sheet discharge direction to provide a staple into a sheet bundle. A gap detecting device for detecting a gap between the head part and the anvil part is formed. If the gap is insufficient, the head part and the anvil part are not moved relative to the sheet bundle.

Abstract: An automated apparatus for feeding and positioning strips in machines for making rectangular frames which are equipped with four stapling units for joining, by steel staples, the strips that form the frames, wherein the strips are picked from corresponding conveyor belts and are transferred and positioned correctly in the stapling units by four motorized carriages which are provided with rotating arms fitted with clamps for gripping the individual strips and move on their respective guides, which are parallel to the conveyor belts that feed the strips for a first couple of the carriages and are perpendicular to the conveyor belts for a second couple of the carriages.

Abstract: A printing system includes a staple sensor that senses a low staple condition in a stapling device. A low staple message is generated in response to sensing the low staple condition in the stapling device. The printing system identifies a computing device designated to manage the replacement of staples. The low staple message is then communicated to the identified computing device. The computing device contains an application capable of determining whether replacement staples are in stock and capable of ordering more staples if replacement staples are not in stock.

Abstract: A stapler for driving a staple into a sheet stack. The stapler includes a first cartridge configured to receive a first staple defined by a first leg length, and a second cartridge configured to receive a second staple defined by a second leg length. The stapler includes a stapling head configured to drive the staples into the sheet stack, and a cartridge positioning actuator configured to selectively position either the first or the second cartridge over a predetermined position on the sheet stack. The stapler can have a single stationary stapling head, and the cartridges can be moved in position over the stapling head. Alternately, each cartridge can have its own associated stapling head. The stapler can include a sensor to determine the thickness of the sheet stack. A controller can receive a thickness signal from the sensor and determine which of the cartridges to position over the sheet stack.

Abstract: A staple apparatus of the present invention comprises a staple wire unit for storing a staple wire as a roll-like form which provides a staple with which a stack of sheet materials is bound, a feeding roller for feeding the staple wire which is stored in the storage section in accordance with a stacked amount of sheets, a cutting device for cutting the staple wire fed by the feeding roller to form a staple, a conveying clip for conveying the staple formed by the cutting device to a predetermined position, and a stapling apparatus bending the staple conveyed by a conveying clip to the predetermined position to staple the stacked sheet materials.