EP1857227A1 - Dispositif de fixation - Google Patents

Dispositif de fixation Download PDF

Info

Publication number
EP1857227A1
EP1857227A1 EP07252017A EP07252017A EP1857227A1 EP 1857227 A1 EP1857227 A1 EP 1857227A1 EP 07252017 A EP07252017 A EP 07252017A EP 07252017 A EP07252017 A EP 07252017A EP 1857227 A1 EP1857227 A1 EP 1857227A1
Authority
EP
European Patent Office
Prior art keywords
plunger
manually operable
latch
fastening device
spring
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.)
Withdrawn
Application number
EP07252017A
Other languages
German (de)
English (en)
Inventor
David J. Popowich
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.)
LMN Solutions Inc
Original Assignee
LMN Solutions 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
Application filed by LMN Solutions Inc filed Critical LMN Solutions Inc
Publication of EP1857227A1 publication Critical patent/EP1857227A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/10—Driving means
    • B25C5/11—Driving means operated by manual or foot power

Definitions

  • the present invention relates to the field of fastening tools of the type employed to drive fasteners (such as, for example, staples, nails or other types of fasteners) into various work surfaces.
  • fasteners such as, for example, staples, nails or other types of fasteners
  • Fastening tools such as, for example, manually operated staple guns, allow an operator of the device to use a single hand in order to operate a handle or the like. Movement of the handle causes the compression of a spring in the tool. When the energy in the spring is released, a fastener is expelled from the fastening device. The operation of the handle to compress the spring and the subsequent release of the energy built up in the spring typically results from one motion of the handle.
  • One type of fastening tool is a forward acting stapler, which is commonly known in the art, and has a handle which is pivoted at one end, the rear end, of the fastening device body.
  • Another type of fastening tool is a rearward acting stapler, also commonly known in the art.
  • U.S. Patent No. 2,671,215 issued to Abrams discloses a staple gun manufactured by Arrow.
  • a handle is pivoted at or near the front of the staple gun. Pressing down on the handle behind the pivot at the free end of the handle compresses a coil spring within the tool. The motion of the handle rotates a pivotally attached lever arm, which in turn raises a plunger assembly including a plunger. At a pre-determined point of travel of the handle, the lever arm arcs sufficiently such that it releases the plunger assembly. The plunger is driven downwards by the force provided by the decompression of the coil spring.
  • Electronic staple devices do not require manual generation of energy stored in a compression spring. Electronic staple devices, however, suffer the disadvantage of, among other things, requiring a power source and the commensurate weight penalty which comes with the ancillary mechanisms required for proper and safe operation.
  • Forward acting manual staple guns are well known in the art. These conventional staple guns, however, do not allow a user to store the energy within the staple gun in one step and then release the stored energy in an independent step.
  • the provision of a mechanism for independently releasing the stored energy may be advantageous to a user of a staple gun in many instances. For example, if the user of a staple gun is required to apply a fastening device or staple above the user's head or just out of the user's reach, the user would not be able to use traditional manual staple guns to apply the fastening device with much success. This is because conventional staple guns eject the staple virtually simultaneously with the application of a considerable force applied by the user to the operating handle, i.e., squeezing the handle.
  • Fastening devices in accordance with the present invention allow a user to squeeze the handle to generate energy within the device and maintain that energy within the device as potential energy.
  • the user can actuate a manually operable latch, which allows the potential energy stored within the device to be converted to kinetic energy in order to allow the ejection of a fastener.
  • This allows users to more easily use a fastening device such as a manually operable staple gun for applications that were previously difficult.
  • an improved fastening device in accordance with the present invention, includes a manually operable latch, which allows the user to store energy resulting from the compression of a compression spring in the fastening device until actuation of the manually operable latch.
  • a plunger of the fastening device moves in the direction of decompression of the compression spring and causes a fastener (such as, for example, staples, nails or other types of fasteners) to be ejected from the fastening device.
  • a fastener such as, for example, staples, nails or other types of fasteners
  • FIGS 1 and 2 illustrate an exemplary embodiment of a fastening device in accordance with the teachings of the present invention.
  • Figures 3A and 3B are perspective views of the fastening device shown in FIGS. 1 and 2.
  • Figure 4 shows the fastening device of FIGS. 3A and 3B with an outer cover attached.
  • FIGS 5A-5C illustrate another exemplary embodiment of a fastening device in accordance with the teachings of the present invention.
  • FIGS 6A-6B illustrate yet another exemplary embodiment of a fastening device in accordance with the teachings of the present invention.
  • FIGS 7A-7B illustrate a further exemplary embodiment of a fastening device in accordance with the teachings of the present invention.
  • FIGS 8A-8J illustrate a further exemplary embodiment of another fastening device in accordance with the teachings of the present invention.
  • a fastening device such as a forward acting stapler
  • a fastening device includes a manually operable latch.
  • the latch functions to retain potential energy stored in a compression spring of the fastening device created by operation of a manually operated handle.
  • the plunger within the fastening device is released, thereby converting the potential energy stored in the compression spring into kinetic energy and displacing a fastener (such as, for example, staples, nails or other types of fasteners) from the staple cartridge or magazine and forcefully dispelling the fastener from the device.
  • a fastener such as, for example, staples, nails or other types of fasteners
  • a fastening device 100 is shown in FIG. 1.
  • the fastening device 100 is a manually operable staple gun and in particular, a forward acting manually operable staple gun.
  • the fastening device 100 includes a handle assembly 104 that includes a manually operable handle portion 102, which is shown in FIG. 1 in a released position.
  • the handle assembly 104 includes a roller 106.
  • a lever arm 108 is provided that includes a first end 109, a second end 111 and a body portion 113.
  • the first end 109 of the lever 108 includes a slider member 112 that has an engagement end 115 and a second end 117.
  • the slider member 112 slides back and forth relative to the body portion 113 of the lever 108.
  • a plunger 114 is provided.
  • the movement of the plunger 114 causes fasteners such as, for example, staples, nails or other types of fasteners to be ejected from the fastening device 100.
  • a spring housing 116 is provided that at least partially houses a compressions spring 121.
  • the spring housing 116 may be integral with, or separately attached, to the plunger 114.
  • the spring housing 116 may preferable include a notch or recess 126 adapted to receive at least a portion of the engagement end 115 of the slider member 112.
  • the slider member 112 is biased in a direction towards the notch or recess 126 by an extension spring 110 (not shown), which causes the engagement end 115 of the slider member 112 to remain in the notch or recess 126 and engage the spring housing 116.
  • a user may depress the manually operable handle portion 102 downwardly, which in turn causes the handle assembly 104 (and roller 106) to move, which in turn causes the lever 108 (and thus the slider member 112) to pivot upwardly about axis 119.
  • This pivoting action causes the engagement end 115 of the slider member 112 to move upwardly, thereby causing the spring housing 116 and the plunger 114 to also move upwardly.
  • the compression spring 121 is compressed.
  • the compression spring 121 is mounted between spring restraint 129 and the spring housing 116, and potential energy is generated within the compression spring 121 as a result of the spring housing 116 and hence the plunger 114 being moved upwardly.
  • the spring housing 116 is moved upwardly to cause compression of the compression spring 121 in order to generate enough potential energy such that when the plunger 114 is released (as described below), the compression spring 121 will push the spring housing 116 and plunger 114 assembly downwardly in the direction of the decompression of the compression spring 121 in order to eject the fastener out of staple chamber 122 and affix the fastener to the desired surface.
  • the decompression of the compression spring 122 occurs once the slider member 112 becomes disengaged with the spring housing 116, which occurs once the lever arm 108 forces the engagement end 115 end of the slider member 112 out of the notch or recess 126, thereby releasing the spring housing 116 and plunger 114 in the direction of decompression of the compression spring 121.
  • the fastening device 100 may preferably include a latch 118 that is manually operable.
  • the latch 118 serves three primary functions. Firstly, the latch 118 catches and retains the plunger 114 in a raised position. Secondly, since the plunger 114 is assembled to the spring housing 116, the latch 118 effectively holds the spring housing 116 in a raised state which in turns keeps the compression spring 121 in a compressed state maintaining its potential energy. In this manner, the latch 118 serves to maintain the potential energy within the system. Thirdly, the latch 118 releases the plunger 114 when desired by the user.
  • the stored energy in the compression spring 121 is released causing the plunger 114 to move downwardly in order to eject a fastener from the staple chamber 122.
  • the latch 118 preferably engages the plunger 114 with the compression spring 121 in a compressed state and thereby retaining the potential energy generated by the compression of the compression spring 121.
  • the latch 118 can then be disengaged from the plunger 114 in order to allow decompression of the compression spring 121, which moves the spring housing 116 and the plunger 114 downwardly in the direction of decompression of the compression spring 121 in order to eject the fastener from the staple chamber 122.
  • fastening devices in accordance with the present invention will thereby allow a user to generate potential energy to be used to drive a plunger 114 and to be able to store this energy and not instantly release the plunger 114.
  • the user can actuate the mechanism of the present invention to release the retained plunger 114 thereby causing a fastener to be ejected from the staple chamber 122.
  • the user compresses a compression spring 121 without instantly releasing the plunger 114 thereby causing a fastener to be ejected from the staple chamber 122.
  • the latch 118 may, in certain instances, not be utilized such that the latch 118 does not engage the plunger 114 in operation. This can be achieved, for example, by deactivating the latch 118 prior to depressing the manually operable handle portion 102 and in turn prior to any upward motion of the plunger 114 or compression of the compression spring 121.
  • a latch lock 120 may be provided. The latch 118 can be deactivated when the latch lock 120 is pushed forward and engaged in notch 130, which will hold the latch 118 in a rotated, or open position. In this position, the latch 118 cannot "catch" the plunger 114, so that the fastening device 100 works like any traditional forward acting staple gun. It is also contemplated that the latch lock 120 in accordance with the present invention may also prevent accidental actuation of the latch 118. It is contemplated that those skilled in the art could employ several different methodologies to effectively hold the latch 118 in an open state.
  • FIG. 2 shows the fastening device 100 of FIG. 1 with manually operable handle portion 102 depressed downwardly in a depressed position.
  • depressing the handle portion 102 causes the handle assembly 104 to rotate, and with it the handle assembly roller 106 which acts on lever 108, causing lever 108 to move the slider member 112 upwardly.
  • the slider 112 acts on the spring housing 116 raising it upwardly which in turn forces the compression of the compression spring 121 generating potential energy within the fastening device 100. Indeed, as shown in FIG. 2, the slider member 112 is about to disengage from the spring housing 116.
  • the plunger 114 In conventional forward acting fastening devices, this would cause the plunger 114 to instantly move in the direction of decompression of the compression spring 121 and eject a fastener (such as, for example, staples, nails or other types of fasteners) from the staple chamber 122.
  • a fastener such as, for example, staples, nails or other types of fasteners
  • the latch 118 will engage the plunger 114 just before the slider member 112 becomes disengaged with the notch or recess 126 formed in the spring housing 116.
  • the manually operable hand portion 102 can become engaged with the fastener device 100 body, thereby allowing a user access to the latch 118.
  • the plunger 114 will disengage from latch catch 128 and will move in the direction of decompression of the compression spring 121 and eject a fastener (such as, for example, staples, nails or other types of fasteners) from the staple chamber 122.
  • a fastener such as, for example, staples, nails or other types of fasteners
  • FIGS. 3A and 3B are perspectives view of the fastening device 100 shown with the outer cover removed. Shown in FIG. 3A, the upward movement of slider member 112 caused by the compression of the manually operable handle portion 102, causes compression of the compression spring 121 (see FIGS. 1 and 2) and results in the upwardly motion of the plunger 114 in the direction of compression of the compression spring 121 as previously described. The upward movement of the plunger 114 continues until the slider member 112 is no longer engaged with the spring housing 116 via the notch or recess 126.
  • the plunger 114 has,moved enough distance to have become slidably engaged to the latch 118 via the latch catch 128, which acts to "catch” and retain the plunger 114 at notch 132 formed in the plunger 114.
  • the latch 118 rotates internally, thereby allowing the notch 132 in the plunger 114 to disengage from the latch catch 128. This allows the plunger 114 to move in the direction of decompression of the compression spring 121 (FIGS. 1 and 2) and eject a fastener from the staple chamber 122.
  • fastening devices in accordance with embodiments of the present invention may optionally include a wire guide 142.
  • the wire guide 142 is optionally included to ensure that, when actuating the latch 118, the device that is desired to be fastened is inline with where a fastener will be ejected from the fastening device 100.
  • FIG. 3B shows the fastening device 100 without the wire guide 142 shown in FIG. 3A removed.
  • FIG. 4 is another perspective view of the fastening device 100 shown with the cover installed, and the latch 118 can be seen.
  • the user depresses the manually operable portion 102 of the fastening device 100, which creates stored energy within the fastening device 100.
  • the latch 118 can also be locked out, either before the handle portion 102 is depressed or after the handle portion 102 is depressed by actuating the latch 118 and sliding the latch lock 120 so that it engages the latch 118 and holds it in an open state. It is contemplated that various configurations and methodologies may be employed for the latch lock 120 mechanism.
  • the fastening device 100 of FIG. 4 may alternatively include a handle portion 102 that extends over and covers the latch 118.
  • a button may preferably be placed on the outside of the handle portion 102, which upon pressing, will compress a spring within the handle portion 102 and be able to exit through a hole in the bottom of the handle portion 102 and be able to contact and impart a load on the latch 118 so that it can actuate the latch 118.
  • FIGS. 5A-5C illustrate yet another embodiment for a fastening device 500 in accordance with the present invention.
  • the user depresses the handle portion 502, which rotates the handle assembly 504 about a pivot point and causes the rotation of the lever 508 through the its contact with the handle assembly roller 506.
  • Latch arms 510 are affixed to the lever 508, and rotate about the axis of the lever as the lever 508 moves.
  • the end of the lever 508 which is opposite the roller 506 engages and rests within the notch or recess 526 in the spring housing 516.
  • the lever 508 As the lever 508 is acted upon by the roller 506, the lever 508 lifts the assembly of the spring housing 516 and the plunger 514 thereby causing the compression of spring 521 which generates potential energy within the device 500.
  • the lever 508 rotates, so to do the latch arms 510.
  • the latch arms 510 rotate and simultaneously act on the latch pin 528 which is affixed to the release actuator 518.
  • the force exerted by the latch arms 510 on the latch pin 528 causes the release actuator 518 to rotate counter-clockwise about pivot axis 540.
  • the latch arms 510 lose contact with the latch pin 528 and the release actuator 518 rotates in its biased clockwise direction.
  • the release actuator 518 is biased in a clockwise direction via a spring which is not shown.
  • the roller 506 arcs sufficiently to lose contact with the lever 508.
  • the opposite end of the lever 508 is still engaged with the notch or recess 526.
  • the compression spring 521 begins to decompress and imparts a downwardly directed load on the spring housing 516. Because of the engagement between the spring housing 516 and the lever 508, the downwardly movement of the spring housing 516 causes the counter-clockwise rotation of the lever 508 and in turn the latch arms 510. As illustrated in FIG. 5B, the latch arms 510 engage and catch on the latch pin 528. This engagement halts the motion of the latch arms 510 and in turn the lever 508.
  • FIGS. 6A-6B illustrate still another embodiment of a fastening device 600 in accordance with the present invention.
  • a release actuator button 690 is located within the manually operable handle portion 602 of the fastening device 600. Depressing the manually operable handle portion 602 will cause the plunger 614 and spring housing 616 to move in an upwardly direction compressing the compression spring 621 as described in previous embodiments. By default, the extended tabs 650 of the spring housing 616 move through the latch pin 698 and then "catch" on the release actuator assembly 618. To do this, the release actuator assembly 618 pivots on the internal latch pivot 696.
  • the compression spring will stay compressed as the housing 616, and in turn the plunger 614, are retained in an upwardly position by the release actuator assembly 618 and therefore the plunger 614 is not allowed to move and eject a fastener from the staple chamber.
  • Pressing of the release actuator button 690 will cause the release actuator assembly 618 to move at the point of the roller 692. This causes the release actuator assembly 618 to pivot and disengage from the spring housing 616 and allows the compression spring to decompress, thereby moving the spring housing 616 and plunger 614 in the direction of decompression in order to eject a fastening device from the staple chamber.
  • FIG. 6B shows a fastening device 600 with the handle 602 in a depressed (or compressed) state.
  • the release actuator button 690 will engage the release actuator assembly 618 by contacting the roller 692.
  • FIGS. 7A-7B illustrate yet another embodiment of a fastening device 700 in accordance with the present invention.
  • the fastening device 700 operates similarly to fastening device 100 shown in FIG. 1.
  • One difference in this embodiment is that as the plunger 714 and spring housing 716 assembly is raised, which increases the potential energy of the compression spring 721, the plunger 714 in turn pushes on a sliding latch component 728 which moves laterally towards the rear of the fastening device 700.
  • the sliding latch component 728 is biased by a spring (not shown) towards the front of the fastening device.
  • a spring not shown
  • the movement of the plunger 714 continues until the slider 712 is no longer engaged with the notch or recess 726. At this point, the plunger 714 has moved enough distance to have become slidably engaged to the sliding latch component 728 which acts to "catch" the plunger at the plunger notch 732 (best viewed in FIG. 7B).
  • the release actuator 790 is actuated, the release actuator rotates about a pivot 796, and the opposite end of the release actuator 790 acts against a roller 792 which is affixed to the sliding latch component 728, and causes the sliding latch component 728 to move against its bias and slide laterally towards the rear of the staple gun 700.
  • the sliding latch component 728 becomes disengaged from the plunger 714 and as a result, the plunger 714 moves in the direction of decompression of the compression spring 721 and ejects a fastener from the staple chamber 722.
  • FIGS. 8A-8J show an alternative embodiment of a fastening device 900 in accordance with the present invention.
  • the fastening device 900 includes a handle assembly 904 that include a manually operable handle portion 902.
  • FIGS. 8A and 8B show the handle portion is a released position.
  • the handle assembly 904 includes a roller 906 (better illustrated in FIG. 8B).
  • a lever arm 908 is provided that includes a first end 911, a second end 909 and a body portion 913.
  • the first end 911 of the lever arm 908 is biased upwardly in a counter clock-wise direction against the handle assembly 904 (and in particular against the roller 906) by torsion spring 901.
  • the second end 909 of the lever arm 908 includes a slider member 912 that has an engagement end 915 and a second end 917.
  • the slider member 912 slides back and forth relative to the body portion 913 of the lever arm 908.
  • a plunger 914 is provided. As is common in many fastening devices known through prior art, the movement of the plunger 914 causes fasteners such as, for example, staples, nails or other types of fasteners to be ejected from the fastening device 900.
  • a spring housing 916 is provided that at least partially houses a compression spring 921. The spring housing 916 may be integral with, or separately attached, to the plunger 914.
  • the spring housing 916 may preferable include a notch or recess 926 adapted to receive at least a portion of the engagement end 915 of the slider member 912.
  • the slider member 912 is biased in a direction towards the notch or recess 926 by an extension spring 910, which causes the engagement end 915 of the slider member 912 to remain in the notch or recess 926 and engage the spring housing 916.
  • a user may depress the manually operable handle portion 902 downwardly, which in turn causes the handle assembly 904 (and roller 906) to move, which in turn causes the lever arm 908 (and thus the slider member 912) to pivot in a clockwise direction about axis 919.
  • This pivoting action causes the engagement end 915 of the slider member 912 to move upwardly, thereby causing the plunger 914 to also move upwardly.
  • the compression spring 921 is compressed.
  • the compression spring 921 is mounted between spring restraint 929 and the spring housing 916, and stores energy that is generated within the compression spring 921 as a result of the spring housing 916 and hence the plunger 914 being moved upwardly.
  • the spring housing 916 is moved upwardly to cause compression of the compression spring 921 in order to generate enough potential energy such that when the plunger 914 is released (as described below), the compression spring 921 will push the spring housing 916 and plunger 914 assembly downwardly in the direction of the decompression of the compression spring 921 in order to eject the fastener out of staple chamber 922 and affix the fastener to the desired surface.
  • the decompression of the compression spring 921 occurs once the slider member 912 becomes disengaged with the spring housing 916, which occurs once the lever arm 908 forces the engagement end 915 of the slider member 912 out of the notch or recess 926, thereby releasing the spring housing 916 and plunger 914 in the direction of decompression of the compression spring 921.
  • the fastening device 900 may preferably include a latch 918 that is manually operable.
  • the latch 918 serves the functions of (1) retaining the plunger 914 in a raised position while the compression spring 921 is in a compressed state thereby maintaining the potential energy within the device 900 and (2) releasing the plunger 914.
  • the latch 918 preferably engages the plunger 914 with the compression spring 921 in a compressed state thereby retaining the potential energy generated by the compression of the compression spring 921.
  • the latch 918 can then be disengaged from the plunger 914 in order to allow decompression of the compression spring 921, which moves the spring housing 916 and the plunger 914 downwardly in the direction of decompression of the compression spring 921 in order to eject the fastener from the staple chamber 922.
  • the latch 918 is mounted to the fastening device 900 such that it can slide from left to right and from right to left in a horizontal fashion.
  • An extension spring 950 (not shown) is included that biases the latch 918 to the left in a direction toward the plunger 914.
  • the latch 918 includes catch portions 952 (hidden in the figure) & 954 that engage and retain the plunger 914 when the compression spring 921 is in a compressed state.
  • the plunger 914 preferably includes slots 956 (hidden in the figure) and 958 that receive the catch portions 952, 954.
  • the slots 956 can be any suitable means for engaging the latch, such as bosses, protrusions, holes, ridge or other shape as long as a cooperating member is suitable formed on the latch for engaging therewith.
  • the latch 918 also includes a ramp portion 960. In operation, when the plunger 914 is forced upwardly, the top edge 980 of the plunger 914 engages the ramp portion 960 thereby urging the latch 918 in a direction from left to right away from the plunger 914. The top edge 980 of the plunger 914 and the ramp portion 960 of the latch 918 are better shown in FIG. 8B.
  • FIG. 8C shows the plunger 914 retained by the latch 918, and in particular, the catch portions 952,954 inserted into slots 956, 958.
  • FIG. 8C also shows the manually operable handle portion 902 in a depressed position.
  • the latch 918 also includes a manually operable portion 962 that allows the latch 918 to be manually actuated.
  • the manually operable portion 962 acts on the latch 918 in the same manner that the release actuator 790 acted on the sliding latch component 728 within device 700 from the embodiment shown in FIG. 7A.
  • the latch 918 can be actuated by a user by depressing the manually operable portion 962.
  • the latch 918 slides laterally such that the catch portions 952, 954 are moved from left to right in a direction away from the plunger 914.
  • the catch portions 952, 954 exit the slots 956, 958 and clear the plunger 914, the plunger 914 is released and the decompression of the compression spring 921 results in the downwardly movement of the plunger 914.
  • a safety lever 903 may preferably be provided that rotates about axis 905.
  • the safety lever 903 is biased in a clock-wise direction by torsion spring 907.
  • the safety lever 903 has two ends. One end 971 is acted upon by the handle assembly 904 when the handle assembly 904 is decompressed.
  • the other end 970 of the safety lever 903 prevents the latch 918 from actuating when the manually operable handle portion 902 is in the raised or released position as shown in FIG. 8A by effectively blocking the rotation and impairing the actuation of the manually operable portion 962 of the latch.
  • FIG. 8D when the manually operable handle portion 902 is depressed, the end 970 of the safety lever 903 rotates downwardly so that the end 970 of the safety lever 903 no longer interferes with the operation of the latch 918.
  • Figures 8E-8F show step by step the depression of the handle 904 through the step of the contact point 972 of the handle 904 contacting the safety lever 903 at end 971 thereby rotating it away from its contact with one end 976 of the manually operable portion 962 of the latch 918.
  • Figures 8G-8H show step by step the depression of the manually operable portion 962 of the latch 918 through the step of the disengagement and release of the plunger 914 from the latch 918 and the decompression of the compression spring 921 as previously described.
  • fastening devices in accordance with the present invention will thereby allow a user to generate and store potential energy within a manually actuated fastening device 900 without instantly releasing the plunger 914 thereby causing a fastener to be ejected from the staple chamber 922.
  • the latch 918 may, in certain instances, may be deactivated such that the latch 918 does not engage the plunger 914 in operation. When the latch 918 is deactivated, the latch 918 cannot "catch” and retain the plunger 914, so that the fastening device 900 works like any conventional forward acting staple gun. As shown through FIGS.
  • the latch 918 may be deactivated by sliding the latch lock 920 from left to right engaging the latch 918 such that the latch 918 slides from left to right, and then keeps the latch 918 in this open position. When the latch 918 is kept in this open position, the latch cannot "catch” and retain the plunger 914. It is contemplated that those skilled in the art could employ several different methodologies to effectively deactivate the latch 918. For example, a pin (not shown) may be inserted through an opening (not shown) in the latch 918 that would keep the latch 918 in the open position.
  • FIGS. 8I-J illustrates how the latch lock 920 is slide from left to right thereby slidably engaging the latch 918 at latch tab 975 thereby forcing the latch 918 to the right.
  • latch 918 With the latch 918 held to the right, it cannot engage nor retain the plunger. Furthermore, with the latch lock 920 slid towards the rear of the device, one end 973 of the latch lock 920 engages the end 974 of the manually operable portion 962 of the latch 918 in such a manner as to block the rotation of the manually operable portion 962 of the latch 918.
  • the manually operable handle portion 902 is depressed downwardly by the user.
  • the depression of the handle portion 902 causes the handle assembly 904 to rotate, and with it the handle assembly roller 906 which acts on lever arm 908, causing lever arm 908 to move the slider member 912 in a generally upward direction so as to compress the compression spring 921.
  • the spring housing 916 and the plunger 914 also move upward, which causes compression of the compression spring 921.
  • the movement of the plunger 914 continues until the slider member 912 is no longer engaged with the spring housing 916 via the notch or recess 926.
  • the plunger 914 has moved enough distance to have become slidably engaged to the latch 918 via the catch portions 952, 954, which act to "catch” or retain the plunger 914 at the slots 956, 958 formed in the plunger 914.
  • the latch 918 will engage and retain the plunger 914 once the slider member 912 becomes disengaged with the notch or recess 926 formed in the spring housing 916.
  • the manually operable handle portion 902 can become engaged with the fastener device 900 body, thereby allowing a user access to the manually operable portion 962 of the latch 918.
  • the latch 918 slides laterally from left to right allowing the plunger 914 to disengage from the catch portions 952, 954 of the latch 918. This allows the plunger 914 to move downwardly in the direction of decompression of the compression spring 921 and eject a fastener from the staple chamber 922.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP07252017A 2006-05-16 2007-05-16 Dispositif de fixation Withdrawn EP1857227A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80073506P 2006-05-16 2006-05-16

Publications (1)

Publication Number Publication Date
EP1857227A1 true EP1857227A1 (fr) 2007-11-21

Family

ID=38283001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07252017A Withdrawn EP1857227A1 (fr) 2006-05-16 2007-05-16 Dispositif de fixation

Country Status (2)

Country Link
EP (1) EP1857227A1 (fr)
AU (1) AU2007202194A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1356887A (en) * 1971-07-09 1974-06-19 Dagrafage Indjstriel Soc Fr Hand-operated fastener applicators
US3913817A (en) * 1973-02-01 1975-10-21 Swingline Inc Fastening element driving tool
FR2454355A1 (fr) * 1979-04-19 1980-11-14 Sofragraf Ste Fse Agrafage Ind Agrafeuse a main
US5699949A (en) * 1996-08-09 1997-12-23 Worktools, Inc. Heavy duty forward acting stapling machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1356887A (en) * 1971-07-09 1974-06-19 Dagrafage Indjstriel Soc Fr Hand-operated fastener applicators
US3913817A (en) * 1973-02-01 1975-10-21 Swingline Inc Fastening element driving tool
FR2454355A1 (fr) * 1979-04-19 1980-11-14 Sofragraf Ste Fse Agrafage Ind Agrafeuse a main
US5699949A (en) * 1996-08-09 1997-12-23 Worktools, Inc. Heavy duty forward acting stapling machine

Also Published As

Publication number Publication date
AU2007202194A1 (en) 2007-12-06

Similar Documents

Publication Publication Date Title
US8511531B2 (en) Fastening device
EP0640445B1 (fr) Outil à enfoncer des attaches actionné par ressort
US7290692B2 (en) Stapler safety device to limit motion of striker
US7124922B2 (en) Stapler safety guard
US5551621A (en) Convertible contact/sequential trip trigger with double actuation prevention structure
US7681771B2 (en) Stapler
US6357647B1 (en) Nail-driving gun having a single shot operation and a continuous shooting operation which can be selected by controlling acutation order of two members
CN108393844B (zh) 轻力释放手动敲钉器
EP1648662B1 (fr) Mecanisme integre de cliquet d'arret, de retenue du dernier clou et de blocage de fonctionnement a vide, pour outil de fixation d'attaches
US7464844B2 (en) Stapler device and method
EP1733847A1 (fr) Agrafeuse
US5551620A (en) Convertible contact/sequential trip trigger
US6189759B1 (en) Fastener driving device with enhanced magazine latch assembly
US6419140B1 (en) Nail-driving gun having a single shot operation and a continuous shooting operation which can be selected by controlling acutation order of two members
US7121444B2 (en) Spring actuated stapler
US20070023473A1 (en) Spring-powered stapler
US4399938A (en) Tacker
EP1857227A1 (fr) Dispositif de fixation
JPS6049558B2 (ja) 釘打ち機
US4150774A (en) Low line tacker
EP1944131B1 (fr) Agrafeuse
CN110587547A (zh) 一种用于驱动多个紧固件的装置
GB2061170A (en) Improvements in or relating to a tacker

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20080409

17Q First examination report despatched

Effective date: 20080523

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20141202