EP3055105B1 - Eintreibwerkzeug mit einem rückholungsauslöser - Google Patents

Eintreibwerkzeug mit einem rückholungsauslöser Download PDF

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Publication number
EP3055105B1
EP3055105B1 EP14766060.9A EP14766060A EP3055105B1 EP 3055105 B1 EP3055105 B1 EP 3055105B1 EP 14766060 A EP14766060 A EP 14766060A EP 3055105 B1 EP3055105 B1 EP 3055105B1
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EP
European Patent Office
Prior art keywords
workpiece
tool
trigger
actuation lever
actuation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14766060.9A
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English (en)
French (fr)
Other versions
EP3055105A1 (de
Inventor
Stephen P. Moore
Murray Z. WEINGER
Daniel J. Birk
Hanxin Zhao
Ricardo Segura
Ryan L. Francis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/049,339 external-priority patent/US9550288B2/en
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP3055105A1 publication Critical patent/EP3055105A1/de
Application granted granted Critical
Publication of EP3055105B1 publication Critical patent/EP3055105B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/008—Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
    • B25C1/041—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure with fixed main cylinder
    • B25C1/043—Trigger valve and trigger mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
    • B25C1/047—Mechanical details

Definitions

  • the present disclosure relates generally to powered, fastener-driving tools, wherein the tools may be electrically powered, pneumatically powered, combustion powered, or powder activated, and more particularly to a new and improved fastener-driving tool having a trigger control mechanism that is capable of providing multiple actuation modes without the need to manually adjust the tool.
  • Powered, fastener-driving tools typically comprise a housing, a power source, a supply of fasteners, a trigger mechanism for initiating the actuation of the tool, and a workpiece-contacting element (also referred to herein as a "work contact element" or "WCE").
  • WCE work contact element
  • the workpiece-contacting element is adapted to engage or contact a workpiece, and is operatively connected to the trigger mechanism, such that when the workpiece-contacting element is in fact disposed in contact with the workpiece, and depressed or moved inwardly a predetermined amount with respect to the tool, as a result of the tool being pressed against or moved toward the workpiece a predetermined amount, the trigger mechanism will in fact be enabled so as to initiate actuation of the fastener-driving tool.
  • a conventional fastener-driving tool is disclosed in US 6 543 664 B2 .
  • powered, fastener-driving tools normally have two kinds or types of operational modes, and the tool is accordingly provided with some mechanism, such as, for example, a lever, a latch, a switch, or the like, for enabling the operator to optionally select the one of the two types or kinds of operational modes that the operator desires to use for installing the fasteners.
  • the depression or actuation of the trigger mechanism will not in fact initiate the actuation of the tool and the driving of a fastener into the workpiece unless the workpiece-contacting element is initially depressed against the workpiece.
  • the workpiece-contacting element in order to operate the powered, fastener-driving tool in accordance with the sequential or single-actuation mode of operation, the workpiece-contacting element must first be depressed against the workpiece followed by the depression or actuation of the trigger mechanism.
  • the operator can in fact maintain the trigger mechanism at its depressed position, and subsequently, each time the workpiece-contacting element is disposed in contact with, and pressed against, the workpiece, the tool will actuate, thereby driving a fastener into the workpiece.
  • trigger assemblies are known wherein mechanisms are provided upon, or incorporated within, the trigger assemblies of the fastener-driving tools for permitting the operator to optionally select the particular one of the two types or kinds of modes of operating the powered, fastener-driving tool that the operator desires to implement in order to drive fasteners into the workpiece in a predetermined manner so as to achieve predetermined fastening procedures.
  • One such trigger assembly is disclosed, for example, within U.S. Pat. No. 6,543,664 , which issued to Wolfberg on Apr. 8, 2003 (hereinafter referred to as "Wolfberg").
  • FIG. 1 of the present application which substantially corresponds to FIG.
  • the trigger assembly is disclosed at 16 and is seen to comprise a trigger 18 which includes a pair of spaced apart side walls 20 between which there is interposed a finger contact portion 22.
  • the side walls 20 and the finger contact portion 22 effectively define an inner cavity 30 that is open at the upper end portion 32 thereof, and an actuation lever 34 is disposed within the inner cavity 30.
  • the actuation lever 34 is pivotally mounted within the inner cavity 30 by means of an end portion 38 thereof, which comprises an eyelet or throughbore 40 within which there is disposed a pivot pin 42, and the actuation lever 34 also comprises a free distal end portion 36.
  • An upper corner portion of each one of the side walls 20 is provided with an eyelet or throughbore 26 within which a pivot pin 28 is disposed, and in this manner, the entire trigger assembly 16 is pivotally mounted upon the tool housing 12.
  • the pair of side walls 20 are provided with a pair of notches 46,48 within which the pivotal end portion 38 of the actuation lever 34 can be selectively disposed such that the operator can operationally choose which mode of operation the fastener-driving tool will perform, that is, either the sequential actuation mode of operation or the contact actuation mode of operation, and it is seen still further that the fastener-driving tool also comprises a workpiece-contacting element 44.
  • the free distal end portion 36 of the actuation lever 34 may be disposed relatively closer to, or farther from, a trigger end portion 60 of the workpiece-contacting element 44. More particularly, when the actuation lever 34 is disposed relatively further away from the trigger end portion 60 of the workpiece-contacting element 44, the fastener-driving tool will be disposed in its sequential actuation mode of operation, whereas when the actuation lever 34 is disposed relatively closer to the trigger end portion 60 of the workpiece-contacting element 44, the fastener-driving tool will be disposed in its contact actuation mode of operation.
  • the fastener-driving tool further comprises a control valve 52 which initiates actuation of the fastener-driving tool, whereby a fastener is driven outwardly from the fastener-driving tool and into the workpiece, and that a coiled spring 54 circumscribes the control valve 52 so as to be interposed between the tool housing 12 and an upper surface portion 56 of the actuation lever 34.
  • the actuation lever 34 is effectively biased toward the finger contact portion 22 of the trigger 18 such that the pivot pin 42 of the pivotal end portion 38 of the actuation lever 34 is assuredly seated within one of the notches 46, 48.
  • the workpiece-contacting element 44 comprises a plurality of linkage members 62 which effectively integrally interconnect the actual workpiece-contacting member 64 with the trigger end portion 60 thereof.
  • FIGs. 1 and 2 of the present application substantially correspond to FIGs. 3 and 4 of Wolfberg. More particularly, in order to actuate the fastener-driving tool, and thereby eject a fastener from the fastener-driving tool and into a workpiece, the free distal end portion 36 of the actuation lever 34 must be disposed within the vicinity of the trigger end portion 60 of the workpiece-contacting element 44 such that the actuation lever 34 can in fact be moved upwardly toward the control valve 52, by means of the trigger end portion 60 of the workpiece-contacting element 44, when the workpiece-contacting element 44 is depressed into contact with the workpiece, so as to be ready to be subsequently moved upwardly into contact with the control valve 52 by means of the finger contact portion 22 of the trigger 18 when the finger contact portion 22 of the trigger 18 is in fact depressed or moved upwardly.
  • the operator when in fact a sequential actuation mode of operation of the fastener-driving tool is to be performed, the operator will dispose the workpiece-contacting member 64 of the workpiece-contacting element 44 into contact with the workpiece, and subsequently, the operator will effectively move the fastener-driving tool downwardly, or toward the workpiece, causing the workpiece-contacting element 44 to effectively move upwardly relative to the tool housing 12.
  • the trigger end portion 60 of the workpiece-contacting element 44 will engage the free distal end portion 36 of the actuation lever 34 so as to move the actuation lever 34 upwardly toward the control valve 52.
  • the entire trigger assembly 16 will be pivotally moved around the pivot pin 28 such that the actuation lever 34 can now in fact contact and actuate the control valve 52 whereby actuation of the fastener-driving tool, as a result of which a fastener is ejected from the fastener-driving tool and into the workpiece, occurs.
  • the workpiece-contacting element 44 will be moved downwardly, under the biasing influence of its spring-biasing means, not illustrated, such that the trigger end portion 60 of the workpiece-contacting element 44 will effectively be released or disengaged from the free distal end portion 36 of the actuation lever 34.
  • the actuation lever 34 will, in turn, move downwardly away from the control valve 52, under the biasing influence of the coil spring 54, so as to attain the position illustrated within FIG. 2 of the present application wherein it is noted that the free distal end portion 36 of the actuation lever 34 is in fact removed from the vertically oriented linear path of movement of the trigger end portion 60 of the workpiece-contacting element 44.
  • the relative upward movement of the workpiece-contacting element 44 will not result in the trigger end portion 60 of the workpiece-contacting element 44 engaging the free distal end portion 36 of the actuation lever 34, but to the contrary, will effectively bypass the same, whereby the actuation lever 34 will not be capable of actuating the control valve 52 so as to initiate a new actuation cycle within the fastener-driving tool.
  • this mode of operation, or failure of operation will also occur if, subsequent to the successful actuation of the fastener-driving tool, the finger contact portion 22 of the trigger 18 is in fact released back to its non-depressed state or position as illustrated within FIG. 1 of the present application, the workpiece-contacting element 44 is released from its depressed state or position with respect to the workpiece whereby the workpiece-contacting element 44 will effectively move vertically downwardly, and prior to the disposition of the workpiece-contacting element 44 in a depressed engaged state with respect to a new site of the workpiece at which a new fastener is to be driven into the workpiece, the finger contact portion 22 of the trigger 18 is again depressed or moved upwardly with respect to the tool housing 12.
  • the workpiece-contacting element 44 must always be moved into depressed contact engagement with a portion of the workpiece prior to the depression or upward movement of the finger contact portion 22 of the trigger 18 with respect to the tool housing 12.
  • FIGs. 3 and 4 of present application which substantially correspond to FIGs. 5 and 6 of Wolfberg
  • the actuation lever 34 is initially moved toward the left such that the pivotal end portion 38 of the actuation lever 34 is now disposed within the notch 46 whereby the free distal end portion 36 of the actuation lever 34 is disposed closer to the trigger end portion 60 of the workpiece-contacting element 44.
  • This movement of the actuation lever 34 may be achieved by inserting a pointed object, such as, for example, a nail, or the like, into one end of the pivot pin 42 of the pivotal end portion 38 of the actuation lever 34, the pivot pin 42 comprising a hollow tubular structure or having recessed means formed within an end portion thereof for accommodating the nail or the like.
  • a pointed object such as, for example, a nail, or the like
  • the pivot pin 42 comprising a hollow tubular structure or having recessed means formed within an end portion thereof for accommodating the nail or the like.
  • the actuation mode of operation is substantially the same as that previously described in connection with the sequential actuation mode of operation.
  • the trigger end portion 60 of the workpiece-contacting element 44 can once again move the actuation lever 34 into engagement with the control valve 52 so as to in fact initiate a new actuation mode or cycle within the fastener-driving tool. Therefore, relatively rapid actuation of the fastener-driving tool in accordance with the contact actuation mode of operation can be achieved each time the workpiece-contacting element is disposed in depressed contact against a workpiece.
  • a nail or similarly sharp-pointed object must be inserted into at least one of the hollow or recessed ends of the pivot pin 42, and in addition, the pivotal end portion 38 of the actuation lever 34 must be disengaged from one of the notches 46,48, against the biasing force of coiled spring 54, so as to permit the pivot pin 42 to then be inserted into the other one of the notches 46,48.
  • Various embodiments of present disclosure provide a new and improved fastener-driving tool which has a trigger control mechanism for alternatively permitting contact actuation and sequential actuation modes of operation without manual adjustment of the tool.
  • the present disclosure provides a fastener-driving tool including a housing and a workpiece-contacting element movably connected to the housing, where the workpiece-contacting element is movable between a rest position and an activated position.
  • the tool also includes a trigger movably connected to the housing, where the trigger is movable between a rest position and an activated position, a control valve including an actuating pin and an actuation lever movably connected to the trigger, where the actuation lever is movable between a rest position and an actuating position adjacent to the actuating pin, and a trigger control mechanism associated with the actuation lever and configured for moving and holding the actuation lever in the actuating position.
  • the trigger control mechanism causes the-actuation lever to move and remain in the actuating position such that the tool is actuated each time the workpiece-contacting element contacts a workpiece and moves to the activated position causing the actuation lever to contact the actuating pin and initiate an actuation of the tool.
  • the actuation lever does not move to the actuating position such that the tool is actuated each time the workpiece-contacting element and the trigger are each respectively moved from the rest position to the activated position in a designated sequence.
  • a fastener-driving tool including a housing and a trigger movably connected to the housing, where the trigger is movable between a rest position and an activated position.
  • the tool further includes a control valve including an actuating pin, an actuation lever movably connected to the trigger, where the actuation lever is movable between a rest position and an actuating position adjacent to the actuating pin, and a workpiece-contacting element movably connected to the housing and being movable between a rest position and an activated position.
  • the workpiece-contacting element includes a fixed portion and an end portion movably connected to the fixed portion where the end portion is movable between a first position and a second position.
  • the fixed portion and the end portion are generally aligned with each other and the end portion is not configured to contact the actuation lever when the trigger is in the activated position and the workpiece-contacting element is moved to the activated position.
  • the end portion is at a designated angle relative to the fixed portion and is configured to contact the actuation lever when the trigger is in the activated position and the workpiece-contacting element is moved to the activated position.
  • the end portion moves to the second position such that the tool is actuated each time the workpiece-contacting element contacts a workpiece and moves to the activated position causing the end portion to contact the actuation lever and the actuation lever to contact the actuating pin and initiate an actuation of the tool.
  • the end portion is in the first position such that the tool is actuated each time the workpiece-contacting element and the trigger are each respectively moved from the rest position to the activated position in a designated sequence.
  • a trigger control mechanism or assembly is disclosed and is generally indicated by the reference character 110. More particularly, it is seen that the illustrated trigger control mechanism 110 is adapted to be mounted upon a fastener-driving tool 112 which comprises a fastener-driving tool housing 114.
  • a workpiece-contacting element assembly which comprises a lower workpiece-contacting element 116 and is adapted to be disposed on contact with a workpiece, and an upper workpiece-contacting element linkage member 118 is slidably mounted in a reciprocal manner upon the fastener-driving tool housing 114, and a guide member 120 is fixedly mounted upon the fastener-driving tool housing 114 so as to guide the upper free end distal portion of the upper workpiece-contacting element linkage member 118 during its movement with respect to the trigger control mechanism or assembly 110.
  • a control valve mechanism or assembly 122 is mounted upon the fastener-driving tool housing 114 so as to initiate either a sequential or contact actuation mode of operation of the fastener-driving tool 112 when the control valve mechanism or assembly 122 is actuated by means of the trigger control mechanism or assembly 110 as will be described below. More particularly, the control valve mechanism or assembly 122 includes a valve member 124 having a valve stem 128 biased by a spring 125 and configured to be seated upon a valve seat 126. The valve stem 128 is configured to be engaged by means of an actuation lever 130 of the trigger control mechanism or assembly 110. The actuation lever 130 is movable between a first or rest position ( FIG. 6 ) and a second or activated position ( FIG.
  • the control valve mechanism 122 also includes an electromagnet or electromagnetic coil 134 disposed around a portion of the valve stem 128 and defines a throughbore 129 configured to receive the valve stem 128 such that the valve stem reciprocally moves within the throughbore of the electromagnet.
  • the trigger control mechanism or assembly 110 includes a trigger member 136 which essentially comprises a hollow housing structure having a pair of oppositely disposed side walls 138 ( FIG. 5 ) to accommodate the actuation lever 130 and the coil spring 132 components therebetween. More specifically, the trigger member 136 has a throughbore 137 ( FIG. 5 ) extending through the pair of oppositely disposed side walls for accommodating a pivot pin 139 ( FIG. 5 ) for pivotally mounting the actuation lever 130 within the trigger member or trigger 136. Additionally, a swivel member 150 is mounted to an end of the valve stem as shown in FIGs.
  • the swivel member 150 may be mounted to the actuation lever 130 and pivot when the end of the valve stem contacts and engages the swivel member.
  • a trigger position sensor assembly 152 ( FIG. 7 ) includes a signal generator 156 associated with or on the trigger member and a sensor 154 associated with or on the tool housing for sensing and indicating whether the trigger member is in an activated or non-activated or rest position.
  • the trigger sensor is a Hall affect sensor that senses a signal generated by the signal generator when the signal is within a designated distance from the sensor. It should be appreciated, however, that a contact sensor or other suitable sensor may be employed as the sensor.
  • a work contact element position sensor assembly or WCE position sensor assembly 158 ( FIG. 6 ) is associated with or mounted on the WCE 116 and the tool housing 114.
  • the WCE position sensor assembly 158 which includes a sensor 160 associated with the housing 114 and a signal generator 162 associated with the workpiece-contacting element, senses and indicates when the WCE 116 is in an activated or non-activated position. Specifically as discussed above, the signal generator 162 generates a signal and the sensor 160 senses the signal when the signal is within a designated distance from the sensor.
  • the trigger position sensor assembly 152 and the WCE position sensor assembly 158 are each suitably connected to a controller such as a circuit board for controlling the operation of the tool.
  • the electromagnet 134 is not energized and therefore does not hold the trigger 136 in an actuation or activated position.
  • the trigger 136 and the workpiece-contacting element 116 are in the rest or non-activated positions as shown in FIG. 6 .
  • the workpiece-contacting element 116 contacts or is pressed against a workpiece so that the workpiece-contacting element moves upwardly.
  • the sensor 160 on the housing 114 senses a signal generated by the signal generator 162 on the workpiece-contacting element, the actuation lever 130 moves to a position adjacent to the swivel contact member 150 of the valve stem 128 as shown in FIG. 7 .
  • the trigger 136 is pressed or moved upwardly until the sensor 154 senses a signal generated by the signal generator 156 on the trigger and the actuation lever 130 contacts and engages the valve stem 128, which indicates that the trigger is in the activated position as shown in FIG. 8 .
  • the workpiece-contacting element 116, the actuation lever 130 and the trigger 136 are now in the activated positions to actuate the tool 112 and drive a fastener into the workpiece.
  • the electromagnet 134 of the control valve mechanism 122 is not energized or activated and therefore there is no attraction between the actuation lever 130 and the trigger 136 and the swivel contact member 150. Releasing the trigger 136 causes the spring 132 on the actuation lever 130 to bias the lever to the rest or non-activated position shown in FIG. 6 . The above process is then repeated to actuate the tool and to drive another fastener into the workpiece.
  • the movement of the first and second signal generators 156 and 162 within a designated distance or pre-determined proximity of the sensors 154 and 160 indicate the relative positions of the workpiece-contacting element 116 and the trigger 136 for actuation of the tool 112. It should be noted that the tool may be operated in the sequential actuation mode or non-powered mode as described above when the tool does not have power, i.e., no battery or dead battery.
  • the electromagnet 134 is energized or activated when the trigger 136 is moved to the second or activated position shown in FIG. 9 .
  • Energizing the electromagnet 134 causes the actuation lever 130 to be magnetically attracted to the swivel contact member 150. This action holds or secures the actuation lever in a position in which it can be contacted by the workpiece-contacting element 116 each time it engages a workpiece and moves to the activated position, allowing the tool 112 to be actuated and drive a fastener into the workpiece.
  • the contact actuation or powered mode causes the tool to be actuated in quick succession for driving fasteners along the edge of a board or other similar workpiece.
  • the electromagnet 134 When the workpiece-contacting element 116, and more specifically, the workpiece-contacting element position sensor assembly 158, is not activated for a designated period of time, or if the trigger 136 is released from its activated position, the electromagnet 134 is de-energized and releases the actuation lever 130 to the rest position due to the biasing force of the spring 132 as shown in FIG. 10 .
  • a timer or other suitable time tracking device is connected to and in communication with the electromagnet 134 so that when the designed time period expires or is reached, the electromagnet is de-energized and the actuation lever 130 moves out of contact with the swivel contact element 150.
  • the end 170 of the valve stem 128 does not include the swivel contact member.
  • the end 170 of the valve stem 128 contacts the actuation lever 130 directly when the actuation lever is moved into contact with the end 170 of the valve stem 128 such as when the workpiece-contacting element 116 is moved upwardly due to contact with a workpiece.
  • the end 170 of the valve stem 128 is configured to have a shape, such as a conical shape or conical contact surface, which engages and contacts the actuation lever. It should be appreciated that the end 170 of the valve stem 128 may have any suitable shape such as a round shape or any other suitable shape.
  • FIG. 13 another embodiment of the trigger control mechanism 110 is illustrated where an electromagnet 172 is connected to an end 176 of valve stem 128 secured in the swivel contact member 150 thereby enabling the electromagnet to directly contact the actuation lever 130 when the workpiece-contacting element 116 is moved to the activated position.
  • the electromagnet or electromagnetic coil 134 on the swivel contact member 150 may be connected to the swivel contact member, surround the swivel contact member or be attached to the swivel contact member using any suitable connection method.
  • the actuation lever 130 includes an electromagnet or electromagnetic coil 173 that is in communication with a controller such as a circuit board via suitable wires or cables.
  • the electromagnet 173 is attached directly to the actuation lever 130 in the trigger 136.
  • the electromagnet 173 includes a groove, notch or indent 180 that matingly engages a protruding lock member 182 on the actuation lever 130 for securing the electromagnet in position relative to the actuation lever.
  • a biasing member such as a coil spring 174, surrounds a portion of the end 176 of the valve stem 128.
  • An end 178 of the spring 174 contacts the actuation lever 130 to bias the actuation lever to the non-activated or rest position shown in FIG. 13 .
  • the electromagnet 173 on the actuation lever 130 is energized when the tool 112 is in the contact actuation or powered mode. Energizing the electromagnet 173 creates a magnetic attraction between the electromagnet 172 and the actuation lever 130 and locks the groove 180 and notch 182 in place thereby holding or securing the actuation lever in a position in which it can be contacted by the workpiece-contacting element 116 each time it engages a workpiece and moves to the activated position.
  • the actuation lever 130 remains in a position in which it can be contacted by the workpiece-contacting element 116 until the workpiece-contacting element 116 remains in a non-activated or rest position for a designated period of time or the trigger 136 is released from its activated position.
  • the magnet assembly 180 includes a permanent magnet 182 on the actuation lever 130, which may be any suitable magnet or a plurality of magnets, and an electromagnet 184 on an inner surface of the trigger 136. It should be appreciated that one or both of the magnets 182 and 184 may be an electromagnet.
  • the magnet 182 and the electromagnet 184 are generally aligned with each other so that the permanent magnet is adjacent to the electromagnet when the actuation lever 130 is in a rest position or non-activated position as shown in FIG. 16 . More specifically, the magnet 182 and the electromagnet 184 are positioned so that the polarities of adjacent sides of the magnet and electromagnet are the same. For example, a magnet typically has two sides where one side of the magnet has a north or south polarity and the opposing side has an opposite polarity.
  • the top surface or top side 188 of magnet 182 on the actuation lever 130 has a first polarity or south polarity and the inner or bottom side 190 of the magnet has a second polarity or north polarity.
  • the top side 192 of the electromagnet 184 has a north polarity and the bottom side 194 has a south polarity when the electromagnet is energized or activated. This causes the same polarities of the magnet 182 and the electromagnet 184, which in this example are the north polarities, to be adjacent to each other as shown in FIG. 16 .
  • magnets or sides of magnets having the same polarity repel or repulse each other.
  • the electromagnet 184 when the electromagnet 184 is not energized, the electromagnet does not generate an electromagnetic field, i.e., does not have a first and second polarity, such that the magnet 182 on the actuation lever 130 is not repelled by the electromagnet.
  • the actuation lever 130 remains in the non-activated or rest position on the inner surface of the trigger 136 due to a biasing force generated by biasing member, such as torsion spring 196, attached to the pivoting end of the actuation lever 130.
  • the opposing polarities of the magnet 182 and the electromagnet 184 cause the actuation lever 130 to be repelled away from the inner surface of the trigger 136 and against the biasing force of the torsion spring 196 to a position adjacent to an end of the actuation pin 181.
  • the workpiece-contacting element 116 is pressed on or against a workpiece thereby causing it to move upwardly within the tool housing 114 so that it contacts and pushes the actuation lever 130 upwardly and away from the inner surface of the trigger 136.
  • the tool is then actuated by pressing the trigger 136 inwardly causing the actuation lever 130 to contact and press the actuation pin 181 inwardly. This sequence is repeated for each sequential actuation of the tool.
  • the electromagnet 184 is energized causing the actuation lever 130, and more specifically, the magnet 182 on the actuation lever to be repelled by the electromagnetic field generated by the electromagnet 184 against the biasing force of torsion spring 196.
  • the actuation lever 130 is held in position next to the actuation pin 181 while the electromagnet 184 is energized. In this position shown in FIG. 17 , the actuation lever 130 can be quickly and repeatedly contacted by the workpiece-contacting element 116 each time the workpiece-contacting element engages a workpiece thereby causing the actuation of the tool and driving a fastener into the workpiece.
  • the electromagnet 184 is de-energized which causes the actuation lever 130 to return the rest position due to the biasing force of the torsion spring 196 as shown in FIG. 116.
  • a timer or other suitable time tracking device is connected to and in communication with the electromagnet 184 so that when a programmed designed time period expires or is reached, the electromagnet is de-energized and the actuation lever 130 returns to the rest position.
  • valve member 124 includes a biasing member, such as coil spring 200, connected to the valve member and surrounding the actuation pin 181.
  • An outer end 202 of the coil spring 200 includes an electromagnet 204 where the flexibility of the coil spring allows the electromagnet to pivot relative to the actuation lever 130.
  • the processor in the tool initiates contact actuation.
  • contact actuation the electromagnet 204 is energized which attracts and holds the actuation lever 130 at a position adjacent to the actuation pin 181.
  • the electromagnet 204 pivots to be substantially flush with a surface of the actuation lever 130, which forms a strong magnetic bond with the actuation lever to securely hold the actuation lever in position during contact actuation.
  • the electromagnet 204 is de-energized thereby eliminating the attraction with the actuation lever 130 and allowing the actuation lever to separate from the electromagnet and return to the rest position due to the biasing force of torsion spring 196, which reverts the tool back to sequential actuation. In this way, the tool can still be operated in the sequential actuation mode even when the battery is not charged or there is no charge remaining to activate the electromagnet 204.
  • the workpiece-contacting element 116 includes a fixed portion 206 and an end portion 208 pivotably connected to the fixed portion.
  • the end portion 208 is in communication with a controller or processor in the tool, which sends a signal to the end portion to move or pivot from a first position ( FIG. 20 ) to a second position ( FIG. 21 ) based on whether the tool is in the sequential actuation mode or the contact actuation mode.
  • the end portion 208 may be moved by non-electrical means such as pneumatically by using air pressure generated in the cylinder to move the end portion or any other suitable method.
  • the end portion 208 is in the first position where it is vertically oriented and generally aligned with the fixed portion 206.
  • the workpiece-contacting element 116 moves inwardly relative to the housing 114 until the workpiece-contacting element sensor 158, and more specifically, the workpiece-contacting element contacts 160, 162 are aligned as described above.
  • the user then presses the trigger 136 inwardly so that the actuation lever 130 contacts the actuation pin 181 to initiate actuation and driving of a fastener into a workpiece.
  • the processor sends a signal to the end portion 208 to pivot or rotate a predetermined distance so that the end portion is at a designated angle relative to the fixed portion 206.
  • the angled end portion 208 contacts the actuation lever 130 and moves it against the actuation pin 181 to initiate actuation of the tool.
  • the tool will then be actuated each time the workpiece-contacting element 116 is depressed against a workpiece while in the contact actuation mode.
  • the end portion 208 moves back to its original vertically oriented rest position in alignment with the fixed portion 206, when the trigger 136 is released or when a predetermined amount of time has elapsed without actuation of the tool.
  • the workpiece-contacting element 116 includes a fixed portion 210, a transverse guide member 212 connected to the fixed portion and an end portion 214 movably connected to the guide member such that the end portion moves or slides along the guide member between a first position ( FIG. 23 ), where the end portion is generally vertically aligned with the fixed portion, and a second position ( FIG. 24 ), where the end portion is offset from the fixed portion.
  • the end portion 214 is in the first position near an end of the actuation lever 130 so that when the trigger 136 is in the rest or non-activated position, the workpiece-contacting element 116 only contacts the actuation lever 130 when the workpiece-contacting element is depressed against a workpiece.
  • the tool is in the sequential actuation mode and is actuated each time the workpiece-contacting element 116 is pressed against the workpiece and the trigger 136 is pressed inwardly, i.e., activated.
  • the processor sends a signal to the workpiece-contacting element 116, and more specifically, to the end portion 214 that causes the end portion to move to the second position or offset position.
  • the end portion 214 is positioned adjacent to a central portion of the actuation lever 130 such that it will contact the actuation lever 130. More specifically, in this position, each time the workpiece-contacting element 116 is pressed against a workpiece, the workpiece-contacting element moves upwardly into the housing 114 and pushes the actuation lever 130 against the actuation pin 181 to initiate actuation of the tool and drive a fastener.
  • the end portion 214 of the workpiece-contacting element 116 remains in the second position until the user releases the trigger 136 or a predetermined amount of time has elapsed without actuation of the tool as described above.
  • FIGs. 26-27 another embodiment of the trigger control mechanism 110 is illustrated where the actuation lever 130 is held in the bump actuation or contact actuation position by a pin assembly 216 having a reciprocating pin 218.
  • the pin 218 may be part of a reciprocating piston 220 as shown in FIG. 22 that is moved by pressurized air supplied from an internal air source, air forced out of the cylinder of the tool during actuation of the tool or by any other suitable method.
  • the pin 218 is in communication with the processor which moves the pin based on whether the tool is in the sequential mode or the contact actuation mode.
  • the pin 218 is retracted or not in contact with the actuation lever 130 thereby allowing the actuation lever to move between the rest position and the actuation position.
  • the workpiece-contacting element 116 is pressed against a workpiece and the trigger 136 is pressed inwardly to initiate actuation of the tool and drive a fastener.
  • the pin 218 moves to the second position, which is generally at least partially beneath and in contact with the actuation lever 130 to hold the actuation lever in the activated position.
  • the trigger 136 is pressed inwardly so that each time the workpiece-contacting element 116 is pressed against a workpiece, the tool is actuated and a fastener is driven into the workpiece. Subsequent actuations of the tool are initiated each time the workpiece-contacting element 116 is pressed against the workpiece.
  • the actuation lever 130 returns to the sequential actuation mode when a user releases the trigger 136 or when a designated amount of time has elapsed without an actuation of the tool as described above.
  • the processor sends a signal to move the piston 220, and more specifically, the pin 218, to the first position which is away from and out of contact with the actuation lever 130 thereby resetting the actuation mode of the tool by releasing the actuation lever to move back to the rest position.

Claims (13)

  1. Befestigungselementantriebswerkzeug (112), das Folgendes umfasst:
    ein Gehäuse (114);
    ein Werkstückkontaktelement (116), das mit dem Gehäuse beweglich verbunden ist, wobei das Werkstückkontaktelement zwischen einer Ruheposition und einer betätigten Position beweglich ist;
    einen Auslöser (136), der mit dem Gehäuse beweglich verbunden ist, wobei der Auslöser zwischen einer Ruheposition und einer betätigten Position beweglich ist;
    ein Steuerventil (122), das einen Betätigungsstift enthält;
    einen Betätigungshebel (130), der mit dem Auslöser beweglich verbunden ist, wobei der Betätigungshebel zwischen einer Ruheposition und einer betätigten Position angrenzend an den Betätigungsstift beweglich ist; und
    einen Auslösesteuermechanismus (110), der dem Betätigungshebel zugeordnet ist und konfiguriert ist, den Betätigungshebel in die Betätigungsposition zu bewegen und hier zu halten,
    dadurch gekennzeichnet, dass in einer eingeschalteten Betriebsart der Auslösesteuermechanismus bewirkt, dass sich der Betätigungshebel in die Betätigungsposition bewegt und in ihr bleibt, so dass das Werkzeug jedes Mal dann betätigt wird, wenn das Werkstückkontaktelement ein Werkstück berührt und sich zu der betätigten Position bewegt, wodurch bewirkt wird, dass der Betätigungshebel den Betätigungsstift berührt und eine Betätigung des Werkzeugs einleitet; und
    wobei sich der Betätigungshebel in einer nicht eingeschalteten Betriebsart nicht in die Betätigungsposition bewegt, so dass das Werkzeug jedes Mal dann betätigt wird, wenn das Werkstückkontaktelement und der Auslöser in einer bestimmten Folge jeweils von der Ruheposition in die betätigte Position bewegt werden.
  2. Werkzeug (112) nach Anspruch 1, wobei der Auslösesteuermechanismus (110) einen Magneten auf dem Betätigungshebel (130) und dem Auslöser (136) enthält und benachbarte Seiten der Magneten eine gemeinsame Polarität aufweisen, so dass die Magneten in der eingeschalteten Betriebsart einander abstoßen.
  3. Werkzeug (112) nach Anspruch 2, wobei einer der Magneten ein Elektromagnet (134) ist, der mit Strom versorgt wird und eine Polarität in der eingeschalteten Betriebsart erzeugt und in der nicht eingeschalteten Betriebsart nicht mit Strom versorgt wird.
  4. Werkzeug (112) nach Anspruch 2, wobei jeder der Magneten ein Elektromagnet (134) ist, die mit Strom versorgt werden und eine Polarität in der eingeschalteten Betriebsart erzeugen und in der nicht eingeschalteten Betriebsart nicht mit Strom versorgt werden.
  5. Werkzeug (112) nach Anspruch 1, wobei das Steuerventil (122) ein Vorspannelement, das den Betätigungsstift umgibt und einen Elektromagneten, der an einem Ende der Vorspannelements angebracht ist, enthält und wobei der Elektromagnet mit Strom versorgt wird und den Betätigungshebel in der eingeschalteten Betriebsart anzieht.
  6. Werkzeug (112) nach Anspruch 5, wobei das Vorspannelement eine Spulenfeder (200) ist.
  7. Werkzeug (112) nach Anspruch 1, wobei der Auslösersteuermechanismus (110) einen Stift enthält, der konfiguriert ist, sich in Bezug auf das Gehäuse zwischen einer eingezogenen Position und einer ausgefahrenen Position hin und her zubewegen, wobei in der ausgefahrenen Position der Stift angrenzend an den Betätigungshebel positioniert ist, um den Betätigungshebel in der Betätigungsposition zu halten.
  8. Werkzeug (112) nach Anspruch 7, wobei der Auslösersteuermechanismus (110) ferner ein Kolbengehäuse, das an dem Gehäuse angebracht ist, und einen Kolben, der konfiguriert ist, sich mit dem Kolbengehäuse hin und her zu bewegen, enthält, wobei der Stift an dem Kolben angebracht ist.
  9. Werkzeug (112) nach Anspruch 1, wobei der Betätigungshebel (130) ein Vorspannelement enthält, das konfiguriert ist, den Betätigungshebel in die Ruheposition vorzuspannen.
  10. Werkzeug (112) nach Anspruch 1, wobei:
    das Werkstückkontaktelement einen festen Abschnitt und einen Endabschnitt, der an dem festen Abschnitt beweglich befestigt ist und zwischen einer ersten Position und einer zweiten Position beweglich ist, enthält,
    wobei der feste Abschnitt und der Endabschnitt in der ersten Position im Allgemeinen aufeinander ausgerichtet sind und der Endabschnitt nicht konfiguriert ist, den Betätigungshebel zu berühren, wenn der Auslöser in der betätigten Position ist und das Werkstückkontaktelement in die betätigte Position bewegt wird, und
    wobei der Endabschnitt in der zweiten Position in einem bestimmten Winkel in Bezug auf den festen Abschnitt ist und konfiguriert ist, den Betätigungshebel zu kontaktieren, wenn der Auslöser in der betätigten Position ist und das Werkstückkontaktelement in die betätigte Position bewegt wird;
    wobei sich der Endabschnitt in der eingeschalteten Betriebsart zu der zweiten Position bewegt, so dass das Werkzeug jedes Mal dann betätigt wird, wenn das Werkstückkontaktelement ein Werkstück berührt und sich zu der betätigten Position bewegt, wodurch bewirkt wird, dass der Endabschnitt den Betätigungshebel berührt und der Betätigungshebel den Betätigungsstift berührt und eine Betätigung des Werkzeugs einleitet; und
    wobei der Endabschnitt in der nicht eingeschalteten Betriebsart in der ersten Position ist, so dass das Werkzeug jedes Mal dann betätigt wird, wenn das Werkstückkontaktelement und der Auslöser jeweils in einer bestimmten Folge von der Ruheposition in die betätigte Position bewegt werden.
  11. Werkzeug nach Anspruch 10, wobei der Endabschnitt schwenkbar mit dem festen Abschnitt verbunden ist.
  12. Werkzeug nach Anspruch 10, wobei das Werkstückkontaktelement ein Führungselement enthält und der Endabschnitt gleitend mit dem Führungselement verbunden ist und zwischen der ersten Position und der zweiten Position in Bezug auf den festen Abschnitt gleitet.
  13. Werkzeug nach Anspruch 10, wobei der Betätigungshebel ein Vorspannelement enthält, das konfiguriert ist, den Betätigungshebel in die Ruheposition vorzuspannen.
EP14766060.9A 2013-10-09 2014-08-27 Eintreibwerkzeug mit einem rückholungsauslöser Active EP3055105B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/049,339 US9550288B2 (en) 2012-10-22 2013-10-09 Fastener-driving tool including a reversion trigger
PCT/US2014/053022 WO2015053873A1 (en) 2013-10-09 2014-08-27 Fastener-driving tool including a reversion trigger

Publications (2)

Publication Number Publication Date
EP3055105A1 EP3055105A1 (de) 2016-08-17
EP3055105B1 true EP3055105B1 (de) 2017-06-14

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Application Number Title Priority Date Filing Date
EP14766060.9A Active EP3055105B1 (de) 2013-10-09 2014-08-27 Eintreibwerkzeug mit einem rückholungsauslöser

Country Status (6)

Country Link
EP (1) EP3055105B1 (de)
AU (1) AU2014332444B2 (de)
CA (1) CA2921211C (de)
DK (1) DK3055105T3 (de)
NZ (1) NZ716915A (de)
WO (1) WO2015053873A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6623662B2 (ja) * 2015-10-09 2019-12-25 マックス株式会社 打込機
JP6627451B2 (ja) * 2015-11-20 2020-01-08 マックス株式会社 工具
FR3046741B1 (fr) * 2016-01-20 2018-01-05 Illinois Tool Works Inc Outil de fixation a gaz
JP6819045B2 (ja) 2016-01-26 2021-01-27 工機ホールディングス株式会社 打込機

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5551620A (en) * 1994-08-10 1996-09-03 Stanley-Bostitch, Inc. Convertible contact/sequential trip trigger
US6543664B2 (en) * 2001-03-16 2003-04-08 Illinois Tool Works Inc Selectable trigger
US6357647B1 (en) * 2001-05-23 2002-03-19 Panrex Industrial Co., Ltd. Nail-driving gun having a single shot operation and a continuous shooting operation which can be selected by controlling acutation order of two members
TW567966U (en) * 2002-12-26 2003-12-21 Wen-Jou Jang Nailing gun structure
TWM403405U (en) * 2010-11-03 2011-05-11 Basso Ind Corp Control structure of electrical nailing gun

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
DK3055105T3 (en) 2017-09-25
CA2921211A1 (en) 2015-04-16
AU2014332444B2 (en) 2017-05-25
EP3055105A1 (de) 2016-08-17
AU2014332444A1 (en) 2016-03-03
WO2015053873A1 (en) 2015-04-16
CA2921211C (en) 2018-04-10
NZ716915A (en) 2017-07-28

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