EP0024086B1 - Appareil pour la production d'un dispositif de retenue de clous pour former une file de clous - Google Patents

Appareil pour la production d'un dispositif de retenue de clous pour former une file de clous Download PDF

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Publication number
EP0024086B1
EP0024086B1 EP80900466A EP80900466A EP0024086B1 EP 0024086 B1 EP0024086 B1 EP 0024086B1 EP 80900466 A EP80900466 A EP 80900466A EP 80900466 A EP80900466 A EP 80900466A EP 0024086 B1 EP0024086 B1 EP 0024086B1
Authority
EP
European Patent Office
Prior art keywords
nails
panel
row
wheel
grooves
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
Application number
EP80900466A
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German (de)
English (en)
Other versions
EP0024086A1 (fr
Inventor
Erik Berendtsen
Peder Pedersen
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.)
Nordiske Kabel OG Traadfabriker AS
Original Assignee
Nordiske Kabel OG Traadfabriker AS
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 Nordiske Kabel OG Traadfabriker AS filed Critical Nordiske Kabel OG Traadfabriker AS
Publication of EP0024086A1 publication Critical patent/EP0024086A1/fr
Application granted granted Critical
Publication of EP0024086B1 publication Critical patent/EP0024086B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B15/00—Attaching articles to cards, sheets, strings, webs, or other carriers
    • B65B15/04—Attaching a series of articles, e.g. small electrical components, to a continuous web

Definitions

  • the invention relates to an apparatus for producing a retaining device for nails to form a row of nails for use in a nail gun, the nail heads preferably having an at least approximately conical underside;
  • the object of the invention is to produce such a retaining device in the form of at least one panel of polymeric, preferably thermoplastic material abutting one side of the row of nails and having at least one row of projections which are narrow compared to the width of the panel and extend between the nails to secure them, using a method known "per se", comprising disposing into grooves in the peripheral surface of a wheel rotating about a horizontal axis and applying the polymeric material during the rotation of the wheel, in order to obtain such an arrangement of retaining device that the nails may be ejected from the retaining device without any risks of material being carried off from the retaining device itself, since any material torn off from said device would be pulled down into the nail hole and would cause great trouble there.
  • U.S. Patent 3 303 632 teaches the use of a rotary wheel with a peripheral row of nail-receiving grooves and a wide peripheral groove intersecting the nail-receiving grooves and having a depth a little greater than the nail-receiving grooves; this peripheral groove receives hot liquid polymeric material and forms it into a panel embedding the nails with a uniform large width, identical with the width of the peripheral groove, all over its depth and specially where the nails are embedded in it.
  • the object of the present invention is to provide an apparatus permitting a very rapid and simple manufacture of a retaining device with a panel having projections which secure the nails so that they will be released from the panel as easily as possible.
  • This is achieved according to the invention in that for the purpose of forming said narrow projections with a weakened line or similar indication for release of the nails, said wheel is provided with at least one narrow groove or slot in the peripheral surface of the wheel, said slot extending longitudinally of the row of nails and having approximately the same depth as or somewhat greater depth than the nail-receiving grooves.
  • the nails will thus form part of the mould in which the polymeric material is cast, and the nails may be placed in the mould quite easily and in a manner known in connection with other retaining devices.
  • the hot, liquid, polymeric material flows down into said slot it will, depending upon the depth of the slot, enclose the nails more or less so as to secure them as effectively as desired, while still ensuring release of the nails from the projections by operation of the nail gun without any risks of undesired plastic portions being torn off.
  • a small opening of weakened line will be formed in the projections surrounding the nails, ensuring that the nail will be ejected from the retaining device itself when it is urged axially forwards by means of the impact mechanism fitted in a nail gun.
  • the nail head which should preferably have a conical underside, then serves to urge the panel aside and to break the weakened line, but the nail head may also be shaped differently, it being only necessary to adapt the edge of the panel facing the nail head so as to obtain a corresponding wedge effect.
  • the hot, liquid, polymeric material is supplied continuously during the rotation of the wheel.
  • the nails are then placed in a manner known per se in the grooves in the wheel periphery, said grooves extending either in parallel with the wheel axis or obliquely, the latter often being desirable in order for the nails to be placed as closely adjacent one another as possible.
  • the wheel is then rotated at a suitable speed of rotation so that the plastic material continuously solidifies when forming the panel and penetrating between the nails and down into said slot.
  • the invention relates to an apparatus permitting a quite precise shape of the panel to be achieved so that it can, as is often desired, be used as a guide in the nail gun as well.
  • Such an apparatus comprises a wheel rotating about a horizontal axis and having grooves in its outer periphery for receiving each nail, and is characterized by at least one slot in the peripheral surface of the wheel extending longitudinally of the row of nail-receiving grooves having approximately the same depth as or a little greater depth than the nail-receiving grooves, and that movable forming means, e.g.
  • forming bands or forming wheels are provided for controlling the spreading of the hot, liquid, polymeric material forming the retaining device and for forming the panel, said forming means being caused to follow the periphery of the wheel over a distance sufficiently long for the applied hot, liquid, plastic material to solidify within said distance into a shape determined by the profile of the forming means.
  • the forming means may be constructed in many different ways, depending upon dimensions and the polymeric material used, it being important that the solidified material does not adhere to the forming means, and that the temperature at which the materials concerned are sufficiently fluid, is so low as to avoid damage to the forming means, which, if they are bands, must be of a flexible material.
  • thermoplastic material Since such a continuous row of nails is often to be coiled up, it is usually necessary to employ a thermoplastic material. It has been found that certain types of polyethylene have a very low softening point and bring about so little friction in relation to the forming means and solidify so quickly that the entire method will be carried out extremely easily and quickly when using such a material. At the same time the friction in relation to the nails is comparatively insignificant without being so low as to endanger the required securing, but the nail is ejected from the retaining device without much loss of power.
  • a functionally particularly advantageous embodiment of such an apparatus is characterized in that said forming means comprise two movable bands abutting and following the surface of the wheel so as to define the two edges of the panel, and an additional band for forming the back of the panel, said additional band abutting the outer face of said first-mentioned two bands.
  • the drawing shows a part of a wheel 1 whose outer periphery is provided with grooves 2 for receiving nails 3 supplied from a feeding channel 4.
  • the wheel 1 rotates in the direction shown by the arrow 5, and the retaining device for the nails is provided at the upwardly facing part of the wheel where plastic material, preferably a thermoplastic polymer, is supplied through a nozzle 6.
  • the wheel is provided with a peripherally extending slot 7, and the nails are additionally kept in place by means of two running bands 8, which also serve to define the region in which the plastic material is to solidify to form the panel 10 of the retaining device. Simultaneously with this, the plastic material will penetrate down between the nails and into the slot 7 that has such a depth as to form small projections which grip each nail and have a clearly weakened line at the side of the nail facing away from the panel 10.
  • a running band 9 is provided that abuts on the top of the two bands 8, and which thereby defines completely the mold cavity in which the panel is to be formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

Dans la production de rangs ou files de clous en continu ou en discontinu utilises dans des pistolets a clous, les clous (3) sont places dans une rangee de rainures paralleles (2) a la peripherie d'une roue (1). Une rainure (7) s'etendant le long de la peripherie de la roue est approximativement aussi profonde ou un peu plus profonde que les rainures (2) et coupe les rainures (2) en leur centre. Des bandes (8) sont appliquees des deux cotes de la rainure (7) espacees par rapport a la rainure, et une troisieme bande (9) est appliquee sur les bandes (8) pour former une cavite definie par les bandes (8 et 9) et par la peripherie de la roue avec la rainure (7). Une resine liquide est introduite dans ladite cavite et se solidifie pour former un panneau (10) qui s'appuie contre la file de clous et possede des saillies s'etendant entre les clous et les tenant au moins partiellement sur leur pourtour.

Claims (3)

1. Un appareil pour la production d'un dispositif de retenue de clous qui comprend au moins un panneau de matière polymère, ledit panneau étant en butée contre le côté de la rangée de clous et ayant au moins une rangée de saillies qui s'étendent suffisamment loin entre les clous pour immobiliser les clous contre le panneau, facilitant simultanément la libération des clous, ledit appareil comprenant une roue rotative, la périphérie extérieure de la roue étant munie de rainures pour recevoir une rangée de clous et d'un canal annulaire s'étendant dans la direction de la rangée de clous et s'étendant jusqu'à une profondeur correspondant approximativement au fond des rainures pour les clous et ledit appareil comprenant également des moyens pour fournir une matière polymère liquide à la rangée de clous, caractérisé en ce que l'appareil est, en outre, muni de moyens de formage mobile (8, 9) pour commander l'étalement de la matière polymère liquide, lesdits moyens (8, 9) étant amenés à venir en butée contre la roue (1) sur une distance suffisamment longue pour que la matière polymère liquide fournie se solidifie et forme le panneau (10) sous une forme prédéterminée par le profil des moyens de formage (8, 9) et en ce que ledit canal annulaire (7) de la roue rotative (1) définissant la rangée de saillies est étroit par rapport à la largeur du panneau (10).
2. Un appareil selon la revendication 1, caractérisé en ce que l'étroit canal (7) a une profondeur légèrement supérieure à la profondeur des rainures (2) de façon à former un point de plus faible résistance dans les saillies enfermant les clous (3).
3. Un appareil selon la revendication 1, caractérisé en ce que lesdits moyens de formage (8, 9) comprennent deux bandes mobiles (8) en butée contre la surface de la roue (1) et la suivant de façon à définir les deux bords du panneau (10) et une bande supplémentaire (9) pour former le dos du panneau (10), ladite bande supplémentaire (9) étant en butée contre la face extérieure desdites deux bandes (8) mentionnées en premier lieu.
EP80900466A 1979-02-22 1980-09-10 Appareil pour la production d'un dispositif de retenue de clous pour former une file de clous Expired EP0024086B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK766/79 1979-02-22
DK76679A DK147012C (da) 1979-02-22 1979-02-22 Apparat til fremstilling af en holdeanordning for soem til dannelse af en soemraekke

Publications (2)

Publication Number Publication Date
EP0024086A1 EP0024086A1 (fr) 1981-02-25
EP0024086B1 true EP0024086B1 (fr) 1983-03-23

Family

ID=8097310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80900466A Expired EP0024086B1 (fr) 1979-02-22 1980-09-10 Appareil pour la production d'un dispositif de retenue de clous pour former une file de clous

Country Status (11)

Country Link
EP (1) EP0024086B1 (fr)
JP (1) JPS56500209A (fr)
BE (1) BE881882A (fr)
CA (1) CA1146059A (fr)
CH (1) CH642586A5 (fr)
DK (1) DK147012C (fr)
GB (1) GB2053839B (fr)
NL (1) NL8020073A (fr)
NO (1) NO154958C (fr)
SE (1) SE423887B (fr)
WO (1) WO1980001790A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114888449B (zh) * 2022-04-14 2023-05-23 南京诺淳五金制品有限公司 一种用于排钉生产的激光切割装置及其方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303632A (en) * 1964-08-03 1967-02-14 Neal M White Nail packaging device
US3432985A (en) * 1965-10-04 1969-03-18 Donald B Halstead Strip packaging machine for nails and other similar articles
SE332591C (sv) * 1967-02-01 1972-12-27 Fastener Corp Sätt och anordning för framställning av ett band av fästorgan
NO125526L (fr) * 1968-03-20
SE355545B (fr) * 1971-06-15 1973-04-30 Helsingborgs Spikfab Ab

Also Published As

Publication number Publication date
BE881882A (fr) 1980-08-22
JPS56500209A (fr) 1981-02-26
SE8007394L (sv) 1980-10-21
NO154958C (no) 1987-01-21
GB2053839A (en) 1981-02-11
WO1980001790A1 (fr) 1980-09-04
GB2053839B (en) 1983-05-18
SE423887B (sv) 1982-06-14
CA1146059A (fr) 1983-05-10
NO803092L (no) 1980-10-16
DK147012B (da) 1984-03-19
EP0024086A1 (fr) 1981-02-25
NL8020073A (nl) 1980-12-31
NO154958B (no) 1986-10-13
CH642586A5 (fr) 1984-04-30
DK76679A (da) 1980-08-23
DK147012C (da) 1984-09-03

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