WO1990002635A1 - Perfectionnements relatifs au chargement de machines de ligaturage, d'agrafage, et d'appareils similaires avec des ligatures en fil metallique, agrafes et elements de fixation similaires - Google Patents

Perfectionnements relatifs au chargement de machines de ligaturage, d'agrafage, et d'appareils similaires avec des ligatures en fil metallique, agrafes et elements de fixation similaires Download PDF

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Publication number
WO1990002635A1
WO1990002635A1 PCT/SE1989/000436 SE8900436W WO9002635A1 WO 1990002635 A1 WO1990002635 A1 WO 1990002635A1 SE 8900436 W SE8900436 W SE 8900436W WO 9002635 A1 WO9002635 A1 WO 9002635A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastener
case
closure plate
magazine
strip
Prior art date
Application number
PCT/SE1989/000436
Other languages
English (en)
Inventor
Peter Hoyaukin
Original Assignee
Peter Hoyaukin
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 Peter Hoyaukin filed Critical Peter Hoyaukin
Publication of WO1990002635A1 publication Critical patent/WO1990002635A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/122—Machines for joining reinforcing bars
    • 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
    • B25C5/1679—Staple-feeding devices, e.g. with feeding means, supports for staples or accessories concerning feeding devices comprising storing arrangements for a plurality of staple strips

Definitions

  • the present invention relates primarily to a method for loading the fastener dispensing chamber of a lashing machine, stapling gun or like apparatus with continuous and coherent strips of U-shaped fastener elements or like fasteners, in which chamber each strip is advanced by the action of a spring force, such as to bring one fastener at a time into a working position in which said fastener element can be stripped from the remainder of the strip by a fastener activating device.
  • the invention also relates to a magazine for use when practicing the method, and to a fastener case intended for use in said magazine.
  • WO 88/01671 describes a novel type of lashing machine intended, inter alia, for use on building sites, for the purpose of lashing together concrete reinforcement rods prior to casting a concrete structure.
  • This machine enables concrete reinforcing rods to be lashed together quickly and simply, with the aid of automatically advanced U-shaped wire ties.
  • the ties are placed over the intersection points of the reinforcing rods and the legs of the ties are subsequently twisted together beneath the rods, with the aid of a twisting or lashin ⁇
  • This known apparatus also utilizes a magazine containing a large number of U-shaped fastener elements, or wire ties, joined together to form a continuous fastener strip, which is advanced incrementally, such as to bring one fastener at a time into a precise, desired working position.
  • the magazine consequently has a long, narrow configuration and, if it is to contain a large number of ties or fasteners, will extend laterally fror. the ma ⁇ chine over some considerable distance. This restricts the usefulness of the apparatus to some exte t and the apparatus also becomes more susceptible to damage when subjected to rough treatment on the building site, such treatment being quite common in these contexts.
  • the present invention is based on the concep- that the aforesaid problems can be eliminated, or at least sub ⁇ stantially reduced, if the magazine were to be extended vertically, when desiring a large magazine capacity.
  • Such a modification would require the pro ⁇ vision of a solution to the problem of feeding fastener strips vertically into the fastener dispensing chamber, one strip at a time, susequent ⁇ .o preceding fastener strips being consumed.
  • each strip will preferably only include a relatively small number of wire fasteners in order to keep the lateral dimensions of the apparatus within suitable limits, which implies tha the apparatus will need to be reloaded at relatively frequently inter ⁇ vals, it must be possible to load the fas ener dispensing chamber in a simple and quick fashion.
  • a method of i-he aforesaid kind which is characterised by placingi'each fastener strip in a separ ⁇ ate case provided with a withdrawable bottom; stacking a plurality of such cases on top of one another, with the lowermost case located over an infeed opening in an upper defining surface of the fastener dispensing cham ⁇ ber; withdrawing the bottom of the lowermost case, so that the fastener strip resting thereon will fall down into the fastener dispensing chamber; and then removing the empty case, so that the next case in line is positioned above said infeed opening.
  • the invention thus enables a very large number of fasteners to be stored in the magazine, and the storage of fastener strips in individual fastener cases enables fastener strips to be charged one at a time to the fastener dispensing chamber of the apparatus.
  • the fastener cases also function to protect the fastener against damage, e.g. protect the fastener legs from against buckling before leaving the machine, which is a prerequisite for the problem-free functioning of the machine.
  • a withdrawable closure plate is provided between the infeed opening and the bottom of the lower ⁇ most fastener case, and means are provided for locking the closure plate to the withdrawable bottom, so that said bottom will accompany the plate as it is withdrawn from the vicinity of the infeed opening.
  • closure plate will therefore facilitate the withdrawal of the bottoms of respective fastener cases.
  • closure plate will also serve as a cover plate which covers the infeed opening while the machine is in active use, thereby preventing fasteners from being pressed up through the inlet open ⁇ ing by the spring force utilized to advance the fasteners in the fastener dispensing chamber.
  • the invention also relates to a magazine for use when practicing the inventive method and to a fastener case intended for said magazine, the essential characteristic features of which magazine and fastener case are set forth in the following appropriate claims.
  • FIG. 1 illustrates a known lashing machine equipped with a magazine constructed in accordance with the invention
  • Figure 2 is an enlarged view of the magazine and the underlying fastener dispensing chamber;
  • Figure 3 illustrates the __mutual coaction between a fastener case and a closure plate included in the maga- zine shown in Figure 2;
  • Figure 4 is a vertical sectional view of the lower part of the magazine and the fastener dispensing chamber according to Figure 2, with the closure plate in its closed position; and
  • Figures 5A-E illustrate the different stages of loading the fastener dispensing chamber located beneath the magazine.
  • the lashing machine illustrated in Figure 1 includes an elongated shaft 1 which carries a handle 2 at one end thereof and a tying or lashing head 3 at the other.
  • the reference numeral 5 identifies an operating lever or handle which controls a mechanism 4 operative to feed U- shaped wire ties to the point of mutual intersection of reinforcing rods 6 and 7 located above the lashing head 3.
  • the wire ties are discharged and separated from a continuous strip of mutually joined wire ties positioned in an fastener dispensing chamber 9, with the aid of a vertically moveable dispenser plate 1C.
  • the legs of the respective ties 8 protruding beneath the reinforcing rods are gripped by the lashing head 3 and twisted around one another as the head rotates, therewith to lash the rods together.
  • the tie twisting head is povered by an electric motor not shown. Up to this point, the described lashing machine coincides exactly with the lashing machine described and illustrated in the afore ⁇ said publication WO 88/01671, and will not be described in further detail here.
  • the fastener dispensing chamber is combined with a vertical magazine 11 in which strips of fasteners can be stored for sequential feeding into the fastener dispensing chamber 9 of the machine.
  • This will enable a very large number of fasteners to be stored in readi ⁇ ness, without requiring the chamber to project exces ⁇ sively from one side of the apparatus.
  • Such extension of the chamber would restrict the usefulness of the machine in practice and would also render the machine more liable to damage from external sources, as before mentioned.
  • FIG 2 illustrates, in larger scale, the magazine 11 incorporated in the lashing machine shown in Figure 1, and illustrates the fastener dispensing chamber 9 lo ⁇ cated beneath the magazine, said chamber being empty in the illustrated view.
  • the magazine comprises a box-like casing 21 which is connected to the fastener dispensing chamber 9 and which has a closeable door 12.
  • the lower part of the door 12 includes a vertically di ⁇ placeable plate 13.
  • the box-like casing 21 has stacked therein six fastener cases or boxes 14, each of which contains a strip of U- shaped wire fasteners 8.
  • the lowermost fastener case 14, nearest the fastener dispensing chamber 9, rests on two support flanges 15.
  • the output chamber 9 includes an inner guiding and supporting member 16, over which a strip of fasteners 8 can be advanced against a stop wall 17, see Figure 4 which shows the chamber loaded with fasteners, such that one fastener at a time is located in a slot-like space in front of the stop wall 17.
  • the fastener located in said space can be separated from the remainer of the fastener strip by means of the dispenser plate 10, which when executing a working stroke slides down the rear wall of the magazine 11.
  • the fastener strip is advanced against the stop wall 17 by means of a pushing device 19 activated by a spring 18.
  • the reference numeral 20 identifies a hand grip by means of which the pushing device 19 can be retracted, so as to enable a fresh fastener strip to be introduced into the fastener dis ⁇ pensing chamber 9, when the preceding strip has been consumed.
  • Figure 2 illustrates the fastener dispensing chamber in readiness for charging said chamber with a fresh strip of fasteners. Means are preferably provided for locking the pushing device temporarily in the posi ⁇ tion shown in Figure 2, during a chamber loading opera ⁇ tion.
  • Each fastener case 14 can be made of an inexpensive plastics material and is constructed to accommodate a fastener strip comprising a plurality of mutually con ⁇ nected U-shaped wire fasteners, e.g. 40 such fasteners.
  • the fasteners can be joined together by means of a bonding substance, a varnish, "' a ' thin plastic foil or the like.
  • the fastener cases are pressed down, vertically, by a spring 22.
  • Each fastener case 14 is provided with a withdrawable bottom 23, on which respective strips of fasteners 8 rest.
  • a laterally withdrawable closure plate 25 Arranged between the withdrawable bottom 23, of the lowermost fastener case 14 and an infeed opening 24 provided in the upper defining surface of the fastener dispensing chamber 9 and located beneath the bottom 23 is a laterally withdrawable closure plate 25.
  • the closure plate 25 is provided with an upstanding guide member 26 which is intended to engage a correspondingly, inwardly directed guide member 27 provided in the bottom plate 23 of the nearest overlying fastener case 14.
  • the guide members 26 and 27 are intended to guide the lowermost fastener case 14 into its correct position relative to the closure plate 25, so that the fastener strip located in said case will be correctly oriented in relation to the guiding and supporting member 16 in the fastener dis ⁇ pensing chamber 9.
  • the guide members 26, 27 will also be effective to lock the withdrawable bottom 23 to the withdrawable closure plate 25, such that the bottom 23 will accompany the closure plate 25 as said closure plate is withdrawn.
  • Figure 5A illustrates the work ⁇ ing state shown in Figure 2, in which the fastener dispensing chamber 9 is empty and the fastener case 14 located above the infeed opening in the upper defining wall of the fastener dispensing chamber is filled with a strip of fasteners 8.
  • the closure plate 25 is then withdrawn, resulting automatically in the withdrawal of the bottom 23 of the fastener case 14.
  • the fastener strip in the fastener case 14 will fall into the fastener dispensing chamber 9, see Figure 5B.
  • the guiding and supporting member 16 provided in said chamber has a slight conical taper in the upward direction, as illustrated in the figure.
  • closure plate 25 is returned to its original position, see Figure 5C, there being no obstacle to movement of the guide member 26 on said plate.
  • This plate also [fupction ⁇ to press down the fasteners 8 located in e fastener dispensing chamber 9 and prevents the fasteners from being pressed up through the infeed opening 24 by the spring-loaded pushing device 19.
  • the now bottomless, empty fastener case 14 is withdrawn from the stack. This withdrawal is effected by lifting the vertically move- able hatch plate 13 in the lower part of the door 12, without opening the door. This feature is illustrated in Figure 5D. Subsequent to removing the empty fastener case, the next, overlying fastener case 14 in line, containing a fresh strip of fasteners 8, will fall down into the position previously occupied by the removed, empty fastener case, see Figure 5E, with the remaining fastener cases in the stack dropping to the same extent. The cycle, can- then be repeated, when the fastener di ⁇ - pensing chamber 9 ha ⁇ again been emptied.
  • the aforede ⁇ cribed method enable ⁇ fre ⁇ h ⁇ trip ⁇ of fa ⁇ - tener ⁇ 8 to be loaded into the fa ⁇ tener di ⁇ pen ⁇ ing chamber 9 in an extremely simple fashion, each of said fastener strips being handled while enclosed in..ah individual fastener case 14.
  • the fastener case also function ⁇ to protect the U- ⁇ haped wire fa ⁇ tener ⁇ during shelf-storage, transportation and storage on the working site.
  • the legs of such U-shaped wire fa ⁇ tener ⁇ are readily bent prematurely, and it will be under ⁇ tood that premature bending of said legs would render the use of such fasteners in automatic lashing machines impossible and result in serious interruptions in operation.
  • the fastener cases also protect the fastener strip ⁇ again ⁇ t dirt and other influence ⁇ likely to jeopardize the function of the lashing machine.
  • the number of fastener cases capable of being accommodated by the magazine can be chosen in dependence on desired magazine capacity.
  • the mutually coacting guiding and locking members pro ⁇ vided on the closure plate 25 and the bottoms 23 of said fastener cases can also be modified as desired, for in ⁇ stance such as to enable a given type of fastener case to be used solely with given machines therewith, for instance, preventing the use of fastener cases which contain fasteners of the wrong quality or dimensions.
  • the guiding and locking members of the illustrated embodiment have the form of mutually coacting male and female devices. It will be understood, however, that several such guiding and locking members may be pro- - vided, if so desired, and located at positions different to those shown. It is preferred, however, to position these members such that the bottoms of respective fas- tener cases will be flat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Sewing Machines And Sewing (AREA)
  • Basic Packing Technique (AREA)
  • Slide Fasteners (AREA)

Abstract

Magasin pour charger une chambre (9), distribuant des éléments de fixation, d'une machine de ligaturage, d'agrafage ou d'une machine similaire avec des bandes d'éléments de fixation (8) métalliques en U mutuellement joints. Ce magasin comporte un empilement de cases (14) d'éléments de fixation, dont chacune comprend un fond amovible (23) et renferme une bande d'éléments de fixation métalliques en U (8). La case (14) la plus basse est située au-dessus d'une ouverture d'amenée ménagée dans une surface supérieure de la chambre de distribution (9) d'éléments de fixation, de manière à permettre à la bande d'éléments de fixation dans ladite case (14) de tomber dans la chambre de distribution lorsque le fond de la case (14) est retiré. La case vide est ensuite évacuée et remplacée par la case immédiatement sus-jacente. L'invention concerne également un procédé pour charger des éléments de fixation métalliques dans une chambre de distribution d'éléments de fixation.
PCT/SE1989/000436 1988-09-01 1989-08-18 Perfectionnements relatifs au chargement de machines de ligaturage, d'agrafage, et d'appareils similaires avec des ligatures en fil metallique, agrafes et elements de fixation similaires WO1990002635A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8803064A SE461961B (sv) 1988-09-01 1988-09-01 Saett att ladda en utmatningskammare hos t ex en najningsmaskin eller haeftpistol, ett magasin foer laddning av naemnda utmatningskammare samt ett hoelje foer t ex traadbyglar avsett att anvaendas i ovannaemnda magasin
SE8803064-8 1988-09-01

Publications (1)

Publication Number Publication Date
WO1990002635A1 true WO1990002635A1 (fr) 1990-03-22

Family

ID=20373186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1989/000436 WO1990002635A1 (fr) 1988-09-01 1989-08-18 Perfectionnements relatifs au chargement de machines de ligaturage, d'agrafage, et d'appareils similaires avec des ligatures en fil metallique, agrafes et elements de fixation similaires

Country Status (6)

Country Link
AU (1) AU4070789A (fr)
ES (1) ES2014905A6 (fr)
PT (1) PT91567B (fr)
SE (1) SE461961B (fr)
WO (1) WO1990002635A1 (fr)
ZA (1) ZA896663B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608756A1 (fr) * 1993-01-18 1994-08-03 Max Co., Ltd. Cartouche d'agrafes et paquet d'agrafes
FR2798614A1 (fr) * 1999-09-21 2001-03-23 Japp Inventeurs Boite a agrafes pour le conditionnement et la distribution d'agrafes notamment dans une machine automatique d'assemblages de cadres

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409049A (en) * 1943-08-02 1946-10-08 Bocjl Corp Driver for tilt-top staples
US3007171A (en) * 1958-11-08 1961-11-07 Critchley Thomas Interchangeable nail chambers with magazines and hoppers for portable nailing machines
US3037207A (en) * 1960-04-06 1962-06-05 Swingline Ind Corp Fastening device
GB1084980A (en) * 1963-12-31 1967-09-27 Karl Kammer Stapling and nailing machines
GB1302449A (fr) * 1969-06-10 1973-01-10
EP0186914A1 (fr) * 1984-12-29 1986-07-09 Nishihara Shokai Co., Ltd. Agrafeuse et magasin à agrafes
WO1987001983A1 (fr) * 1985-09-30 1987-04-09 United Technological Industries Limited Agrafeuses
GB2191140A (en) * 1986-05-05 1987-12-09 Young Tsung Ming Side-fed stapler
WO1988001671A1 (fr) * 1986-08-27 1988-03-10 Vrenning Jorgen Machine a ligaturer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409049A (en) * 1943-08-02 1946-10-08 Bocjl Corp Driver for tilt-top staples
US3007171A (en) * 1958-11-08 1961-11-07 Critchley Thomas Interchangeable nail chambers with magazines and hoppers for portable nailing machines
US3037207A (en) * 1960-04-06 1962-06-05 Swingline Ind Corp Fastening device
GB1084980A (en) * 1963-12-31 1967-09-27 Karl Kammer Stapling and nailing machines
GB1302449A (fr) * 1969-06-10 1973-01-10
EP0186914A1 (fr) * 1984-12-29 1986-07-09 Nishihara Shokai Co., Ltd. Agrafeuse et magasin à agrafes
WO1987001983A1 (fr) * 1985-09-30 1987-04-09 United Technological Industries Limited Agrafeuses
GB2191140A (en) * 1986-05-05 1987-12-09 Young Tsung Ming Side-fed stapler
WO1988001671A1 (fr) * 1986-08-27 1988-03-10 Vrenning Jorgen Machine a ligaturer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608756A1 (fr) * 1993-01-18 1994-08-03 Max Co., Ltd. Cartouche d'agrafes et paquet d'agrafes
US5501387A (en) * 1993-01-18 1996-03-26 Max Co., Ltd. Staple cartridge and staple sheet pack
FR2798614A1 (fr) * 1999-09-21 2001-03-23 Japp Inventeurs Boite a agrafes pour le conditionnement et la distribution d'agrafes notamment dans une machine automatique d'assemblages de cadres
WO2001021364A1 (fr) * 1999-09-21 2001-03-29 Societe Cassese (S.A.) Boîte a agrafes pour le conditionnement et la distribution d'agrafes notamment dans une machine automatique d'assemblages de cadres
AU778799B2 (en) * 1999-09-21 2004-12-23 Societe Cassese S.A. Staple cassette for packaging and dispensing staples in particular in an automatic frame assembling machine

Also Published As

Publication number Publication date
ES2014905A6 (es) 1990-07-16
SE8803064D0 (sv) 1988-09-01
ZA896663B (en) 1990-06-27
SE8803064L (sv) 1990-03-02
PT91567B (pt) 1995-07-18
PT91567A (pt) 1990-03-30
AU4070789A (en) 1990-04-02
SE461961B (sv) 1990-04-23

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