EP0109493A2 - Dispositif d'agrafage - Google Patents

Dispositif d'agrafage Download PDF

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Publication number
EP0109493A2
EP0109493A2 EP83108705A EP83108705A EP0109493A2 EP 0109493 A2 EP0109493 A2 EP 0109493A2 EP 83108705 A EP83108705 A EP 83108705A EP 83108705 A EP83108705 A EP 83108705A EP 0109493 A2 EP0109493 A2 EP 0109493A2
Authority
EP
European Patent Office
Prior art keywords
lever
stapler according
housing
anvil
electric motor
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Withdrawn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
EP83108705A
Other languages
German (de)
English (en)
Other versions
EP0109493A3 (fr
Inventor
Artur F. Klaus
Gottfried Piecha
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.)
Signode Corp
Original Assignee
Signode Corp
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 Signode Corp filed Critical Signode Corp
Publication of EP0109493A2 publication Critical patent/EP0109493A2/fr
Publication of EP0109493A3 publication Critical patent/EP0109493A3/fr
Withdrawn legal-status Critical Current

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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
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/10—Driving means
    • B25C5/15—Driving means operated by electric power
    • 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
    • B25C5/02—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor with provision for bending the ends of the staples on to the work
    • B25C5/0285—Hand-held stapling tools, e.g. manually operated, i.e. not resting on a working surface during operation
    • B25C5/0292—Hand-held stapling tools, e.g. manually operated, i.e. not resting on a working surface during operation with the objects to be stapled together introduced perpendicularly to the longitudinal axis of the tool in an opening formed by an anvil and a plunger

Definitions

  • the invention relates to a stapling device for driving in and closing staples, which are arranged in a magazine of a device body provided with a pivotable anvil and having a housing, which magazine has a guide channel for the foremost staple arranged in the magazine of a number of advanceable staples, of a driver blade can be moved through the guide channel against a groove plate carried by the anvil, while the guide plate and anvil are pivoted towards one another in their working position.
  • Such staplers are used, for example, in the textile industry for attaching price tags to clothing.
  • the price tags can be quickly connected to the respective item of clothing and, if necessary, removed again.
  • the stapler shows signs of fatigue, in particular the hand becomes weak, with which the force required to drive forward and bend the staples is exerted.
  • These signs of fatigue often result in incomplete stapling, in which the legs of the U-shaped staples are not completely bent. In such a case, the price tags are not securely attached to the garment and can fall off easily.
  • the protruding staple legs also pose a risk of injury.
  • the driver blade which pushes the foremost staple in the magazine through a guide channel against the groove plate of the anvil, is driven by a magnet armature.
  • a magnet armature drive strikes the staple.
  • the sudden actuation is unfavorable for the stapling process, in which the legs of the staples should gradually close by bending.
  • the blows are also transmitted to the hand holding the stapler, which places a heavy strain on the operator's wrist.
  • the invention has for its object to develop a stapler of the type mentioned in such a way that the staples are completely stapled, i.e. with minimal operation on the person actuating the stapler with simple operations and little effort. the legs of the staples are completely bent over.
  • crank mechanism actuating the driver blade is connected to the rotor of an electric motor and that on the one hand the anvil can be pivoted relative to the device body into its working position and by means of a pivotally mounted pressure lever locking mechanism lockable in this and, on the other hand, the electric motor can be switched on and locked in the switched-on position, and that by means of a cam disk rotatable by the rotor, the electric motor can only be switched off with each complete revolution of the crank mechanism and the locking of the anvil can be released.
  • the masses to be displaced in a forward and backward movement during the respective stapling process are small in this device.
  • the forces exerted by the mass acceleration and deceleration during a stapling and acting on the hand are therefore also low.
  • the staples are driven in and bent over at a speed dependent on the speed of the electric motor.
  • the speed of the staple feed can be easily adapted to the conditions necessary for a cheap and safe bending over an appropriate speed of the crank drive.
  • the operation and handling of the stapling device is easy with the measures explained according to the invention.
  • the cam disc acts upon its rotation on a lever of a pivot shaft, preferably parallel to the axis of rotation of the cam disc, which in turn acts with an actuating projection in the sense of unlocking the pressure lever locking mechanism and thereby switching off the electric motor.
  • the pressure lever locking mechanism can be articulated on the one hand on the anvil and on the other hand on the housing.
  • the push lever locking mechanism has a push lever and a swivel lever which are articulated to one another via a common swivel axis and are in their starting position at an angle to one another, the swivel lever with its free end directly or indirectly on the anvil and the push lever with its free end is articulated directly or indirectly to the housing and a switch button acts on the pressure lever and / or swivel lever when it is actuated in the sense of increasing the spreading angle between the pressure lever and swivel lever.
  • a switch button acts on the pressure lever and / or swivel lever when it is actuated in the sense of increasing the spreading angle between the pressure lever and swivel lever.
  • a toothed rack is articulated on the articulated connection between the pressure lever and the pivoting lever or one of the two levers and that as a result when the switch button is actuated, preferably against the action of a spring, by longitudinal displacement into a latching tooth can be locked, which is pivotable for unlocking about an axis from the plane of displacement of the rack.
  • the switch button e.g. by hand, not only is the anvil brought into its working position via the pressure lever locking mechanism, but also locked in this position.
  • the locking is preferably against the action of a spring, if a restoring force is to be effective when unlocking.
  • the locking tooth can, for example, be provided on a bracket which can be pivoted about the axis, preferably against the action of a spring can be seen which is connected to a contact lever acting on a microswitch located in the power supply for the electric motor for joint pivoting.
  • a bracket which can be pivoted about the axis, preferably against the action of a spring can be seen which is connected to a contact lever acting on a microswitch located in the power supply for the electric motor for joint pivoting.
  • the contact lever preferably against the action of a spring, can be displaced along the axis in the direction of the microswitch via a shift lever which can be actuated by the pressure lever, the contact lever can not only execute a lateral pivoting movement for actuating the microswitch, but also also a longitudinal movement perpendicular to the microswitch.
  • a return spring acts on the pressure lever and swivel lever in such a way that the resetting of the spreading angle between the pressure lever and the swivel lever is inevitably reduced. In this way, when the rack is unlocked, the anvil is inevitably brought into its swung-out initial rest position.
  • Pressure lever and shift lever can be slidably mounted in a common slot in the housing. In this way, the aforementioned longitudinal displacement of the contact lever relative to the microswitch can be implemented in a simple manner.
  • the contact lever has an L-shaped angle mounted on the axis, one end of which can be pressed against a push button of the microswitch.
  • the guided movement of the driver blade can take place in the device according to the invention, for example, in that the crank mechanism has an eccentric pin disc which is fastened to a drive shaft of the electric motor, which drive shaft carries the cam disk.
  • the pin expediently engages in a transverse slot of the driver blade guided in the direction of the groove plate of the anvil.
  • a reduction gear e.g. made of plastic, is connected downstream.
  • the microswitch has a changeover contact and the winding of the electric motor is in the switched-off state shorted the changeover contact. In this way it can be achieved that the electric motor stops immediately after a full revolution of the drive shaft and thus the cam disc.
  • the device body and the associated housing have the shape of a pistol, the switch button being attached to the handle. Then the actuating force direction advantageously runs approximately perpendicular to the guide path of the staples, which facilitates the actuation of the stapling device.
  • a stapling device 1 for driving in U-shaped staples and for bending the legs of the staples has a device body 2 having a housing 60 with a shaft 3, in which there is a magazine 6 for receiving a supply of staples.
  • a device body 2 having a housing 60 with a shaft 3, in which there is a magazine 6 for receiving a supply of staples.
  • an elongated anvil 4 is mounted with its rear end pivotable about an axis 5.
  • the anvil 4 has a groove plate 33 at its front end.
  • the magazine 6 can be inserted into the shaft 3 against the action of a spring until it engages with a releasable pawl 7.
  • the staples in the magazine 6 are pressed by the spring in the direction of a vertical guide channel 30 provided at the front end of the magazine 6. Of the staple supply in magazine 6, the foremost staple is therefore always located directly in guide channel 30.
  • the driver blade 9 is accommodated in the attachment 8 in a vertically displaceable manner.
  • the driver blade 9 has a T-shaped shape.
  • the driver blade 9 in the attachment 8 is like this led that it hits the web of a staple underneath with its lower edge during the downward movement.
  • the upper cross part 11 of the driver blade 9 is displaceable in a wider guide 12 of the housing 60.
  • a slot 13 which runs transversely to the direction of displacement of the driver blade 9 and into which a pin 14 engages, which is fastened eccentrically to a pin disc 15.
  • the pin 14 protrudes from the end face of the pin disc 15 in the axial direction through the transverse slot 13.
  • the pin disc 15 is overhung on a drive shaft 16.
  • the drive shaft 16 is the output shaft of a reduction gear 17, which is flanged to an electric motor 18, which in turn is accommodated in the housing 60.
  • a cam disk 20 is arranged on the drive shaft 16 in a rotationally fixed manner.
  • the cam disk 20 is pressed by a spring 21, one end of which is supported on the pin disk 15, against the end of the shaft 16 protruding from the gear 17.
  • a driver pin connected to the cam disk 20 engages in a recess in the shaft 16.
  • the cam disk 20 carries on its outer circumference a cam 23 which is fastened with a lever 24 of a swivel shaft 25 running parallel to the drive shaft 16. The circumferential position of the cam 23 of the cam disk 20 can be changed by the driver pin.
  • the pivot shaft 25 is mounted in the housing 60.
  • the rear end of the pivot shaft 25 carries an actuating projection 26 which projects perpendicular to the central axis of the pivot shaft 25.
  • the actuating projection 26 interacts with a tab 27 which protrudes vertically at an L-shaped angle 28 (cf. FIG. 4).
  • the angle 28 is mounted on a vertical axis 29.
  • the tab 27 forms a contact lever with the angle 28.
  • the angle 28 is made of plastic, for example.
  • the plane of the angle 28 runs perpendicular to the axis 29, which runs in the center plane of the device body 2 or parallel to it.
  • the axis 29 is received in its central portion by a bearing 31 of the housing 60.
  • a U-shaped bracket 34 is pivotally mounted on the axis 29, the legs 35, 36 of which encompass the axis 29 on both sides of the bearing 31 in the housing 60.
  • the upper leg 36 bifurcates into two tines, in the space between which engages a tab 37 bent vertically downward from the angle 28.
  • the contact lever 27, 28 and the bracket 34 can thus be pivoted together about the axis 29.
  • the axis 29 is rotatably received in the bearing 31 but axially displaceable.
  • the bracket 34 is pivotable about a certain angle of rotation about the axis 29.
  • the forked leg 36 takes the tab 37 of the bracket 28 with it.
  • a locking tooth 38 is attached to the bracket 34.
  • the latching tooth 38 projects outwards on that side of the bracket 34 which faces away from the space delimited by the legs 35, 36.
  • the latching tooth 38 interacts with a toothed rack 39 which has an elongated hole 40 into which a pin 41 arranged on the housing 60 engages.
  • the pin 41 protrudes vertically away from the center plane of the housing 60.
  • the end of the rack 39 facing away from the locking tooth 38 is articulated together with one end 42 of a pressure lever 43 on the housing 60.
  • the other end 44 of the pressure lever 43 is also pivotally mounted in the housing 60.
  • a pivot lever 45 is also pivotally mounted with its end 46 in the housing 60.
  • the other end 47 of the pivot lever 45 is' pivotally mounted on a projection 48 of the anvil 4.
  • a shift lever 49 rigidly fixed, the free end is mounted together with the end 44 of the push lever 43 by means of an axis 5 1 in a slot 50 in the housing 60th
  • the elongated hole 50 has only a small extent parallel to the axis 29.
  • the restoring force of a spring 52 acts on the U-shaped bracket 34.
  • the spring 52 presses the bracket 34 into a position so that the locking tooth 38 lies in the same plane in which the rack 39 is also located.
  • a spring 53 presses the pressure lever 43 by acting obliquely from below on the rack 39, which is thereby pressed in the locking position with respect to the locking tooth 38, so that in the starting position the pressure lever 43 and the pivot lever 45 enclose the smallest possible spreading angle a with one another.
  • a spring 63 acts on the shift lever 49 from below and tries to push the axis 29 upwards.
  • the pressure lever 43 and the pivot lever 45 can each consist of a pair of levers which are arranged symmetrically to the center plane of the housing 60. Such a configuration of the pressure lever 43 and pivot lever 45 is shown in FIG. 3.
  • a microswitch 54 with a push button 55 is in such a position that the angle 48 can be pivoted via the push button 55 and can therefore be actuated when the rack 39 is in its latched position, ie the axis 29 in its lower position and the bracket 34 in is in a position in which the locking tooth 38 is in its locking position.
  • the angle 28 is rotated about the axis 29, one end of the angle 28 pivots via the pushbutton 55.
  • the angle 28 has two end positions. One end position is determined by the engagement of the locking tooth 38 in the central plane of the housing 60. In this end position, the free end of the angle 28 is in the area of the push button 55.
  • the other End position of the angle 28 depends on the deflection of the actuating projection 26, which is deflected by the cam 23 of the cam disc 20 by a certain angle when the lever 24 is actuated and lies against the tab 27.
  • the bracket 28 is pivoted into its second end position via the tab 27, in which the locking tooth 28 is pivoted out of the plane of the toothed rack 39 to release the engagement.
  • pivoting the angle 28 its end is simultaneously removed from the area of the pushbutton 55, ie the electric motor 18 is switched off.
  • the angle 28 is shown in detail in FIG. 4 in its view from above.
  • the tab 27 protrudes vertically upward from the angle 28.
  • the angle 28 has two ends 57, 58.
  • the tab 37 projects vertically downward from the end 57.
  • the axis 29 can engage with its upper end in a recess 32.
  • the pivoting movement of the angle 28 is illustrated in FIG. 4 by arrow 59.
  • the end 58 is used to actuate the push buttons 55.
  • the housing 60 has a rear recess 61 through which the end of the pawl 7 protrudes.
  • the housing 60 allows the magazine 6 to be pulled forward from the shaft 3, as a result of which both the magazine 6 and the guide for the driver blade 9 in the attachment 8 are freely accessible, which is important if a staple is jammed.
  • Below the anvil 4 in the area of the handle 19, the housing 60 has a recess 62 through which a switching button 22 protrudes, which acts on the back of the pressure lever 43 or the pivoting lever 45 or the axis connecting these two levers 43, 45.
  • the material to be stapled is inserted between the anvil 4 and the shaft 3.
  • the anvil 4 in the pivot position shown in Fig. 1.
  • the material to be stapled can be a Act item of clothing and a price tag, which are pushed together into the area between the grooved plate 33 and the guide channel 30.
  • the switch button 22 is pressed by the fingers of the hand of the operator holding the handle 19 of the pistol-shaped housing 60.
  • the switch button 22 thereby acts on the push lever 43 and the pivot lever 45 in the sense of an enlargement of the region enclosed by them spreading - angle a.
  • the axis 29 is in its upward position due to the action of the spring 63.
  • the rack 39 is in its outermost position out of engagement with the locking tooth 38.
  • the cam tooth 38 itself is due to the action of the spring 52 in the same plane as the rack 39.
  • the bracket 34 with the angle 28 occupy such a position that the end 58 is immediately above the push button 55.
  • the rack 39 When the switch button 22 is pressed, the rack 39 is pressed against the action of the spring 53 along the elongated hole 40 in its detent position with the detent tooth 38.
  • the width of the elongated hole 40 is dimensioned such that the toothed rack 39 with its teeth can move slightly downward relative to the locking tooth 38 against the action of the spring 53.
  • the locking tooth 38 engages in the teeth of the rack 39.
  • the anvil 4 is pivoted upwards until it lies against the shaft 3 with the material to be stapled in between. In this end position of the anvil 4, the rack 39 locks with the tooth 38.
  • the pin disc 15 connected to the drive shaft 16 executes a rotary movement which, via the pin 14, sets the driver blade 9 in a linear displacement movement first downward and then upward again.
  • the driver blade 9 pushes a staple through the guide channel 30 and through the material to be stapled onto the groove plate 33, the legs of the staple being bent after penetration of the material in the groove of the groove plate 33.
  • the drive shaft 16 also takes the cam disk 20 with it when it rotates.
  • the cam 23 of the cam disk 20 is adjusted with respect to its angular position so that the drive shaft 16 is only rotated almost a full revolution before the cam 23 actuates the lever 24.
  • the driver blade 9 carries out a complete stapling and roughly returns to its starting position.
  • the actuation projection 26 is deflected via the pivot shaft 25.
  • the actuating projection 26 exerts a pivoting movement about the axis 29 on the tab 27. Due to this pivoting movement, the end 58 of the angle 28 is removed from the push button 55 of the microswitch 54, which in turn switches to its other end position.
  • the rack 39 thereby moves out of the engagement area of the locking tooth 38, which can then no longer engage the rack 39 despite the action of the return spring 52.
  • the spring 52 moves the bracket 34 and thus the angle 28 back to its starting position.
  • the stapler 1 is thus available for a new stapling operation after a complete stapling and only one has been carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP83108705A 1982-10-23 1983-09-03 Dispositif d'agrafage Withdrawn EP0109493A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823239256 DE3239256A1 (de) 1982-10-23 1982-10-23 Heftgeraet
DE3239256 1982-10-23

Publications (2)

Publication Number Publication Date
EP0109493A2 true EP0109493A2 (fr) 1984-05-30
EP0109493A3 EP0109493A3 (fr) 1986-05-07

Family

ID=6176410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108705A Withdrawn EP0109493A3 (fr) 1982-10-23 1983-09-03 Dispositif d'agrafage

Country Status (10)

Country Link
US (1) US4572419A (fr)
EP (1) EP0109493A3 (fr)
JP (1) JPS5993272A (fr)
AU (1) AU2042383A (fr)
CA (1) CA1205952A (fr)
DE (1) DE3239256A1 (fr)
DK (1) DK484183A (fr)
ES (1) ES527015A0 (fr)
FI (1) FI833792A (fr)
NO (1) NO155957C (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720033A (en) * 1986-05-05 1988-01-19 Swingline Inc. Motor-operated fastener driving machine with movable anvil
US4705202A (en) * 1986-06-27 1987-11-10 Swingline Inc. Cartridge plier stapler
DE8704666U1 (fr) * 1986-08-02 1987-05-21 Demba Metallwarenfabrik Gmbh, 2072 Bargteheide, De
DE3705856A1 (de) * 1987-02-24 1988-09-01 Mannesmann Ag Vorrichtung fuer den papiertransport in einer bueromaschine, insbesondere in einem matrixdrucker
GB9126338D0 (en) * 1991-12-11 1992-02-12 Glynwed Eng Fastener applicator
US5339517A (en) * 1993-04-12 1994-08-23 The John Henry Company Plant tagging apparatus
US5467524A (en) * 1993-04-12 1995-11-21 The John Henry Company Apparatus for tagging plants
US5437404A (en) * 1993-07-13 1995-08-01 Illinois Tool Works Inc. Adjustable shear block assembly
DE4437696A1 (de) * 1994-10-21 1996-04-25 Leitz Louis Kg Elektroheftgerät
US6237827B1 (en) * 1998-11-12 2001-05-29 Senco Products, Inc. Stapler and method for the attachment of steel framing
WO2000044620A1 (fr) 1999-01-29 2000-08-03 Jaenson Howard W Systeme de cerclage de balle automatique
US6487833B1 (en) 2000-01-29 2002-12-03 Howard W. Jaenson Strap welding system and method
US7757922B2 (en) * 2008-02-04 2010-07-20 Jelley Technology Co., Ltd Power beating device
US8016175B2 (en) * 2008-02-25 2011-09-13 Dvells Jr Walter E Attachment for stitching tool
US7963430B2 (en) * 2008-10-15 2011-06-21 Chervon Limited Nailer device
SE536387C2 (sv) * 2012-03-02 2013-10-01 Isaberg Rapid Ab Häftapparat med arrangemang för spänningssättning av ett elastiskt organ ingående i häftapparaten
US20140076954A1 (en) * 2012-09-18 2014-03-20 Stanley Fastening Systems, L.P. Pallet nail clinching apparatus and methods
US9701001B2 (en) 2014-04-30 2017-07-11 Arrow Fastener Co., Llc Motor-driven fastening tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500217A (en) * 1948-08-27 1950-03-14 Thomas A Sulkie Stapling machine
US2770805A (en) * 1955-02-25 1956-11-20 Elzer Philip Stapling machines
US3042924A (en) * 1959-03-12 1962-07-10 Porter Cable Machine Co Power nailing machine
US4199095A (en) * 1977-12-15 1980-04-22 Maruzen Kabushiki Kaisha Stapling means

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1724422U (de) * 1953-07-14 1956-06-21 Erwin Mueller Heftgeraet.
US2943327A (en) * 1957-03-08 1960-07-05 Senco Products Stapling plier
US3580458A (en) * 1968-07-19 1971-05-25 Umberto Monacelli Compressed air stapling machine for metallic staples with control of the anvil for bending the staple ends
DE1905532B2 (de) * 1968-10-16 1971-06-03 Schaltung zur synchronisierung der takt und oder traeger frequenz bei der impulsbuendelweisen uebertragung von digi talen signalen ueber nachrichten satelliten zwischen meh reren bodenstationen mittels zeitmultiplex
US3786978A (en) * 1972-06-05 1974-01-22 Electro Matic Staplers Inc Electromagnetic stapler
JPS53119145A (en) * 1977-03-25 1978-10-18 Yoshida Kogyo Kk Structure of clamp of slide zipper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500217A (en) * 1948-08-27 1950-03-14 Thomas A Sulkie Stapling machine
US2770805A (en) * 1955-02-25 1956-11-20 Elzer Philip Stapling machines
US3042924A (en) * 1959-03-12 1962-07-10 Porter Cable Machine Co Power nailing machine
US4199095A (en) * 1977-12-15 1980-04-22 Maruzen Kabushiki Kaisha Stapling means

Also Published As

Publication number Publication date
CA1205952A (fr) 1986-06-17
ES8406039A1 (es) 1984-07-01
NO155957B (no) 1987-03-23
FI833792A0 (fi) 1983-10-18
DK484183A (da) 1984-04-24
NO833761L (no) 1984-04-24
FI833792A (fi) 1984-04-24
EP0109493A3 (fr) 1986-05-07
AU2042383A (en) 1984-05-03
DE3239256A1 (de) 1984-04-26
JPS5993272A (ja) 1984-05-29
NO155957C (no) 1987-07-01
ES527015A0 (es) 1984-07-01
DK484183D0 (da) 1983-10-21
US4572419A (en) 1986-02-25

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