US3282490A - Rear loading staple magazine - Google Patents

Rear loading staple magazine Download PDF

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Publication number
US3282490A
US3282490A US406473A US40647364A US3282490A US 3282490 A US3282490 A US 3282490A US 406473 A US406473 A US 406473A US 40647364 A US40647364 A US 40647364A US 3282490 A US3282490 A US 3282490A
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US
United States
Prior art keywords
staples
magazine
staple
follower
throat
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.)
Expired - Lifetime
Application number
US406473A
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English (en)
Inventor
Edsell M Eady
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.)
INTERNATIONAL STAPLE AND MACHINE CO
Original Assignee
INTERNATIONAL STAPLE AND MACHINE CO
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 INTERNATIONAL STAPLE AND MACHINE CO filed Critical INTERNATIONAL STAPLE AND MACHINE CO
Priority to US406473A priority Critical patent/US3282490A/en
Priority to GB43190/65A priority patent/GB1071377A/en
Priority to FR46489A priority patent/FR1451136A/fr
Priority to DEJ29211A priority patent/DE1264394B/de
Priority to CH1452165A priority patent/CH438212A/fr
Priority to FI2514/65A priority patent/FI42700B/fi
Priority to BE671208D priority patent/BE671208A/xx
Priority to ES0319099A priority patent/ES319099A1/es
Priority to NL6513698A priority patent/NL6513698A/xx
Application granted granted Critical
Publication of US3282490A publication Critical patent/US3282490A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25C5/16—Staple-feeding devices, e.g. with feeding means, supports for staples or accessories concerning feeding devices

Definitions

  • This application relates to ia rear loading staple magazine which is intended for use in stapling machines in which U-shaped staples are fed consecutively into a driving throat whereupon a driving blade moving in la track in alignment with the driving throat is driven through the throat to engage a staple and force it into a workpiece beneath the stapling machine.
  • the magazine can also be used for feeding nails to a driver for a nail-driving machine.
  • the staples are generally supplied for use in the stapling machine in sticks in which a number of staples (in the order of 50) are secured edge to edge by adhesive, a light layer of solder, etc.
  • a staple to be driven into a workpiece is moved into the driving throat in position to be engaged by the driving blade, motion of the driving -blade through the throat separates the staple in the throat from the staples behind it and drives the staple into the rwork.
  • the sticks of staples are fed toward the driving throat in a channel which narrowly contines the staples against movement at right angles to the feeding movement and a spring-loaded follower moves the staples through the channel towards the driving throat.
  • the stapling magazine which I have invented has a retractable stop adjacent the end of the magazine away from the driving throat of the machine, and in the plane of movement of the staples, so that staples are not withdrawn from the magazine when the follower is pulled back rearwardly over the staples.
  • the stop is retractable to permit staples to be fed into the magazine.
  • the follower in my magazine is moved forwardly towards the throat by a flat steel spring which is coiled at the end of the magazine adjacent the driving throat and which extends out over the staples beneath the track for the follower ⁇ and which has its free end secured to the follower.
  • the tendency of the flat spring to return to its coiled form supplies the force which moves the follower towards the driving throat. This force is a constant force, and, therefore, this type of spring has been frequently used in staple magazines.
  • the follower has a surface which slopes forwardly towards the driving throat and downwardly and the free end of the spring is secured to this sloping surface, so that the portion of the spring adjacent the free end is directed downwardly against the sticks of staples to meet it.
  • the natural tendency of the coil of the spring at the forward end to unwind tends to force the portion of the spring adjacent the coil downwardly against staple sticks beneath that portion and thereby the whole length of the spring acts as a holddown for the staples and holds them firmly down against the track on which they move through the magazine.
  • the mounting of the spring can be reversed, i.e., the coil can ybe mounted on the follower and the free end on the magazine adjacent the throat.
  • FIGURE 1 is a broken plan view of the magazine
  • FIGURE 2 is a longitudinal section of the magazine
  • FIGURE 3 is a plan View of the rear end of the magazine on an enlarged scale
  • FIGURE 4 is a section along the lines IV-IV of FIG- URE 3;
  • FIGURE 5 is an end view of the rear end ⁇ of the magazine
  • FIGURE 6 is a section along the lines VI-VI of FIG- URE 3;
  • FIGURE 7 is a section along the lines VII-VII of FIG- URE 4;
  • FIGURE 8 is a plan view on an enlarged scale of the end of the magazine adjacent the driving throat;
  • FIGURE 9 is -a section along the lines IX-IX of FIG- URE 8.
  • FIGURE l() is a section along the lines X-X of FIG- URE 8, and
  • FIGURE 11 is aneend view of the structure shown in FIGURE 8.
  • my rear loading staple magazine comprises a double channel 12 which, as shown in FIGURE 5, is formed from a single metal piece. It comprises a base 13 having downwardly extending legs 14 which are bent outwardly at 15, then upwardly to form outer sides 16. The sides 16 are bent inwardly to form two top portions 17 which extend only a part of the way across the top, leaving a space 18 which extends the full length of the magazine.
  • the base 13 and legs 14 form a track for staples and the top portions 17 form a track for a staple-follower, as will be later described.
  • a vertically extending wear plate 19 is welded to the end of the channel 12 and lugs 20 spaced from, but extending parallel to the sides of the wear plate 19, constitute spacers which limit the amount that the magazine can be inserted into the stapling machine.
  • the portions of the lugs 210 which ex tend beyond the wear plate 19 form the sides of the stapledriving throat and the plate 19 forms the rear wear plate of the driving throat.
  • Staples are forced forwardly along the base 13 and the legs 14 which form the staple track until they reach the position shown in FIGURE 2, at which forward motion is stopped by a wear plate opposite to the wear plate 19 and forming part of the stapliug machine.
  • a driving blade 21 (forming no part of this invention) is moved by the stapling machine to engage the foremost staple, driving it past the wear plate 19 and between the lugs 2li into the workpiece.
  • a coiled spring 22 is mounted on top of the channel adjacent the driving throat and the free end 23 of this 'spring extends out across the staple sticks in the magazine and is connected to a staple follower 24, which will be described in more detail hereinafter.
  • the spring coil 22 exerts a constant force on the staple follower 24, tending to move it towards the driving throat of the stapling machine, and thereby feeds sticks of staples into the driving throat.
  • a handle 25 extends vertically from the follower 24 and a stop 26 extending upwardly from the channel 12 prevents withdrawal of the follower from the rear end of :the magazine.
  • Lugs 27 extend from the side of the channel 12 for securing the magazine in a stapling machine.
  • FIGURES 3, 6 and 7 illustrate in detail the rear or outer end of the magazine, i.e., the end of the magazine farthest from the driving throat of the stapling machine and the follower in its rearmost position.
  • the follower comprises a U-shaped base member 28 having two legs 29 and 30 which extend towards the driving throat of the stapling machine.
  • Fingers 31, in the form of flat plates, are curved at one end to form bearings 32 for pins 33 which extend between the legs 29 and 39 on opposite sides of the yoke.
  • the ngers turn on the bearings 32 and are connected at their free ends by a spring 34 which pulls the free ends of the ngers towards each other and against the sides of the legs 14 which form the sides of the track for the staple.
  • the follower is mounted on the top portions 17 of the channel by means of the top leg 29 of the U-shaped mem- -ber 28.
  • the top leg 29 has a raised portion 35 which tits into the longitudinal space 18 between the top portion 1'7 of the magazine.
  • a bolt 36 secured by a nut 37 passes through the portion 35 and carries beneath that portion a guide plate 38 against which the free end of the spring 23 is held by the bolt 36.
  • the bottom surface of the plate 38 slopes downwardly and forwardly so that the free end 23 of the spring is pressed downwardly against the top of the staples on the staple track.
  • the bolt 36 Above the top portion 17 of the channel, the bolt 36 carries a Teon strip 39, a steel backing plate 40 and a washer 41.
  • the raised portion 35 and the Teon strip 39 form guide surfaces for the follower whereby it can slide lengthwise in the space 18 between the Itop portions 17 of the channel.
  • a stop is provided on the outside of the legs 14 which is engaged by staples on the staple track to prevent withdrawal of the staples when the staple follower is pulled back rearwardly over the staples.
  • This stop is positioned slightly forward of the ends of the fingers 31 when they are against the sides 14 and the follower is in its rearmost position.
  • the stop comprises a tube 42 which extends between the legs 14 and has within it and at each end pins 43 which extend through apertures 43a in the legs 14 and are urged into that position by a spring 44 within the tube, and extending between them.
  • Portions of the pins 43 extend beyond the legs 14 into the path of travel of the legs of the staples on the staple track and are flattened as at 45 so as to obtain a firm liat contact with the legs of the staples.
  • the apertures 43a are oval so as to prevent turning of the pins 43.
  • the end portions of the pins extending beyond the legs 14 are also rounded or sloped so that staple sticks can be fed from the rear along the staple track. When this is done, the forward staple of a stick presses the pins 43 inwardly and the stick slides over the inwardlt,l pressed pins.
  • FIGURES 8 to 1l inclusive illustrate in detail the forward end of the magazine adjacent the driving throat.
  • the forward end carries a wear plate 19 and spacers 20 which form the sides and rear wear plate of the driving throat through which staples are driven into the work.
  • the forward end also carries a U-shaped bracket 46, the upper leg 47 of which supports a mount for the coiled spring which actuates the staple follower and the lower leg 48 of which acts as a guide for staples as they approach the driving throat.
  • tabs 49 are stamped upwardly from the top portions 1'7 of the channel 12 and the top leg 47 is slipped beneath the tabs 49 and welded in place.
  • Brackets 50 are formed from the leg 47 and extend vertically upwards as shown in FIGURES 10 and 1l to support the coil spring. Asbest shown in FIGURE 10, a recess 51 is formed in the forward end of each bracket 5t) and a drum 52 on which the spring is coiled extends into the recesses 51.
  • the lower leg 48 of the bracket 46 extends inwardly from the front of the channel 12 slightly above the staples as they move on the staple track, and the inner end of the leg 48 is bent upwardly as shown at 53 so as to enable the staples to slide readily under the leg 48.
  • the sticks of staples advance towards the driving throat of the stapling machine under the force of the spring 22 acting on the follower 24.
  • the staples are moved forwardly, because, as shown in FIGURE 3, the fingers 31 on the follower 24 are pressed against the sides 14 of the staple track and engage the last of the staples in the magazine.
  • the follower of course, is at the forward end of the magazine near the driving throat. At that point, the operator inserts through the rear open end of the magazine sticks of staples and pushes them forwardly in the magazine, so that the foremost staple engages the forward wear plate in the driving throat which is carried by the staple machine.
  • a rear loading staple magazine for stapling machines having a staple driving throat and a driving blade moving in the throat to drive staples comprising,
  • which spring comprises fiat steel spring stock connecting said magazine and said follower, said spring stock being coiled at one of its ends and the coil -being so positioned vertically with respect to the staple sticks that the natural tendency of the spring to unwind presses the portion of the spring above the staple stick downwardly against the sticks to hold them down against the first track.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US406473A 1964-10-23 1964-10-23 Rear loading staple magazine Expired - Lifetime US3282490A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US406473A US3282490A (en) 1964-10-23 1964-10-23 Rear loading staple magazine
GB43190/65A GB1071377A (en) 1964-10-23 1965-10-12 Rear loading magazine for stapling machines
FR46489A FR1451136A (fr) 1964-10-23 1965-10-18 Dispositif de magasin rechargeable par l'arrière pour machines à agrafer et analogues
DEJ29211A DE1264394B (de) 1964-10-23 1965-10-20 Von hinten zu beschickendes Magazin fuer Klammern bei Heftmaschinen
CH1452165A CH438212A (fr) 1964-10-23 1965-10-21 Magasin rechargeable par l'arrière pour machine à agrafer
FI2514/65A FI42700B (xx) 1964-10-23 1965-10-21
BE671208D BE671208A (xx) 1964-10-23 1965-10-21
ES0319099A ES319099A1 (es) 1964-10-23 1965-10-22 Perfeccionamientos en los almacenes de grapas para maquinas engrapadoras.
NL6513698A NL6513698A (xx) 1964-10-23 1965-10-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US406473A US3282490A (en) 1964-10-23 1964-10-23 Rear loading staple magazine

Publications (1)

Publication Number Publication Date
US3282490A true US3282490A (en) 1966-11-01

Family

ID=23608142

Family Applications (1)

Application Number Title Priority Date Filing Date
US406473A Expired - Lifetime US3282490A (en) 1964-10-23 1964-10-23 Rear loading staple magazine

Country Status (9)

Country Link
US (1) US3282490A (xx)
BE (1) BE671208A (xx)
CH (1) CH438212A (xx)
DE (1) DE1264394B (xx)
ES (1) ES319099A1 (xx)
FI (1) FI42700B (xx)
FR (1) FR1451136A (xx)
GB (1) GB1071377A (xx)
NL (1) NL6513698A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612383A (en) * 1969-11-14 1971-10-12 Spotnails Magazine construction for fastener driving machine
JPS50105678U (xx) * 1974-02-01 1975-08-30
US3958738A (en) * 1974-10-18 1976-05-25 Usm Corporation Staple gun for accommodating a range of staple sizes
EP0246206A2 (en) * 1986-04-24 1987-11-19 Nordisk Kartro Ab Nail-feeding device
US6502719B2 (en) * 2001-01-22 2003-01-07 Besco Pneumatic Corp. Washer supply device for power nailers
US20080017687A1 (en) * 2006-07-20 2008-01-24 Buck William C Cap bypass feeder
US11267117B2 (en) 2018-09-14 2022-03-08 ACCO Brands Corporation Staple pusher assembly and method of installing same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2055249A (en) * 1933-12-27 1936-09-22 Boston Wire Stitcher Co Method of and machine for stapling or stitching
US2716749A (en) * 1952-02-18 1955-09-06 Timmerbeil Ewald Rudolf Stapling machine for simultaneously inserting at least two staples
US3106136A (en) * 1961-11-15 1963-10-08 Signode Steel Strapping Co Fastener driving tool
US3174672A (en) * 1963-03-06 1965-03-23 Senco Products End loading staple magazine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072961B (de) * 1957-02-11 1960-01-14 Elastic Aktiengesellschaft vormals M. Vogel A.G., Frankfurt/M Klammervorschub für mit Heftklammerstreifen beschickte Klammerheftgeräte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2055249A (en) * 1933-12-27 1936-09-22 Boston Wire Stitcher Co Method of and machine for stapling or stitching
US2716749A (en) * 1952-02-18 1955-09-06 Timmerbeil Ewald Rudolf Stapling machine for simultaneously inserting at least two staples
US3106136A (en) * 1961-11-15 1963-10-08 Signode Steel Strapping Co Fastener driving tool
US3174672A (en) * 1963-03-06 1965-03-23 Senco Products End loading staple magazine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612383A (en) * 1969-11-14 1971-10-12 Spotnails Magazine construction for fastener driving machine
JPS50105678U (xx) * 1974-02-01 1975-08-30
JPS5528455Y2 (xx) * 1974-02-01 1980-07-07
US3958738A (en) * 1974-10-18 1976-05-25 Usm Corporation Staple gun for accommodating a range of staple sizes
EP0246206A2 (en) * 1986-04-24 1987-11-19 Nordisk Kartro Ab Nail-feeding device
EP0246206A3 (en) * 1986-04-24 1989-06-07 Nordisk Kartro Ab Nail-feeding device
US6502719B2 (en) * 2001-01-22 2003-01-07 Besco Pneumatic Corp. Washer supply device for power nailers
US20080017687A1 (en) * 2006-07-20 2008-01-24 Buck William C Cap bypass feeder
US11267117B2 (en) 2018-09-14 2022-03-08 ACCO Brands Corporation Staple pusher assembly and method of installing same

Also Published As

Publication number Publication date
FR1451136A (fr) 1966-08-26
ES319099A1 (es) 1966-04-16
NL6513698A (xx) 1966-04-25
CH438212A (fr) 1967-06-30
BE671208A (xx) 1966-02-14
GB1071377A (en) 1967-06-07
FI42700B (xx) 1970-06-30
DE1264394B (de) 1968-03-28

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