EP0041710B1 - Verfahren zur Herstellung einer Hohlnadel für Etikettenbefestiger od. dgl. - Google Patents

Verfahren zur Herstellung einer Hohlnadel für Etikettenbefestiger od. dgl. Download PDF

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Publication number
EP0041710B1
EP0041710B1 EP81104359A EP81104359A EP0041710B1 EP 0041710 B1 EP0041710 B1 EP 0041710B1 EP 81104359 A EP81104359 A EP 81104359A EP 81104359 A EP81104359 A EP 81104359A EP 0041710 B1 EP0041710 B1 EP 0041710B1
Authority
EP
European Patent Office
Prior art keywords
needle
channel
longitudinal groove
guide channel
tip
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
EP81104359A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0041710A3 (en
EP0041710A2 (de
Inventor
Heinz Hettich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT81104359T priority Critical patent/ATE5765T1/de
Publication of EP0041710A2 publication Critical patent/EP0041710A2/de
Publication of EP0041710A3 publication Critical patent/EP0041710A3/de
Application granted granted Critical
Publication of EP0041710B1 publication Critical patent/EP0041710B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H37/00—Machines, appliances or methods for setting fastener-elements on garments
    • A41H37/005—Hand implements
    • A41H37/008—Hand implements provided with a needle tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
    • B21G1/00—Making needles used for performing operations
    • B21G1/08—Making needles used for performing operations of hollow needles or needles with hollow end, e.g. hypodermic needles, larding-needles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C7/00—Affixing tags
    • B65C7/003—Affixing tags using paddle-shaped plastic pins
    • B65C7/005—Portable tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill

Definitions

  • the invention relates to a method for producing a hollow needle made of round steel provided at the rear end with a thicker mounting shank, which has a guide channel which is open at the front end at the rear end of the mounting shank and runs radially in front of the needle tip for at least approximately cylindrical cross pins of fasteners provided with a thread Has labels, buttons or the like, which are to be attached to textiles or similar substrates, the guide channel being provided with a longitudinal slot, the width of which is smaller than the width of the guide channel.
  • Such hollow needles are used in devices for attaching fasteners for buttons, labels or the like to textiles or similar substrates.
  • the fasteners used are made of plastic and are arranged detachably on a common strand. They each consist of a head part and a thread-shaped connecting piece protruding therefrom, in the middle or in the end area penetrated by a transverse pin.
  • the hollow needle serves to pierce the carrier material to which the fastener is to be attached and to pass the cross pin through the carrier material.
  • the device is provided with a piston which crosses a feed channel, pushes back and forth, which can be inserted from the rear end into the guide channel of the hollow needle, in order to in each case through the hollow needle the transverse pin inserted from the side into the guide channel of the hollow needle push.
  • the guide channel is produced according to the previously known methods in such a way that the needle blank, which is pre-turned with the needle tip and the assembly shaft, is provided with a concentric bore from the front side of the assembly shaft, which extends approximately to the point where the conical section of the needle tip begins. To do this, it is necessary to drill a center hole in the front of the mounting shaft.
  • the end of the hole near the needle tip is milled by means of a disc milling cutter, the width of which is greater than the outer needle diameter and which is inserted into the material of the needle with radial feed so far, so that a hole in the outside of the needle Circular segment-shaped recess is formed, and after this process, the arcuate bore outlet is milled with another milling cutter that has a smaller diameter and a thickness that corresponds to the bore diameter. With a further side milling cutter, the thickness of which is smaller than the bore diameter, the longitudinal slot of the bore is then produced in a further operation.
  • hollow needles for such label fastening devices from an elongated piece-like material with lateral sections at the front end to form the tip, which are bent into a tube guiding the transverse pins in such a way that the longitudinal edges form the longitudinal slot, the tube at the rear End in side protrusions on the flat material, for fastening the hollow needle in a housing.
  • the rear mounting shaft is formed by a pointed plastic piece.
  • hollow needles bent out of sheet metal into a tube can be manufactured very cheaply, but they have the disadvantage that they do not have sufficient stability, especially in the area of their tip, so that they can be easily bent, or that their tip is hard materials that are pierced should break off or quickly become dull (DE-BZ No. 1805474). For this reason, hollow needles made of round steel are preferred in practice for such label fastening devices (US-A No. 2069879).
  • the invention is based on the object of specifying a method for producing hollow needles of the type mentioned at the outset from round steel, which, in particular, enables the axial guide channel of the hollow needle to be produced more simply and with fewer operations.
  • a U-shaped longitudinal groove is milled from the rear end of the shaft to approximately the needle section tapering to the tip by means of a disc cutter having a U-shaped cutting profile, which groove is formed in the mounting shaft in the outside of the radial area lying thinner in the needle cross-section than in the radial area lying within the needle cross-section and having step-like edge surfaces on both sides, and that the edges of the U-shaped longitudinal groove are then inward by means of an embossing tool, leaving a radial outlet slot located near the tip and having the width of the longitudinal groove be shaped.
  • This method not only eliminates drilling, which often results in the drill running or breaking, especially with small drill diameters, but also the milling of the guide channel outlet near the needle tip and the radial milling of the bore to achieve an outlet opening, and drilling also eliminates the need to drill a center hole on the front of the mounting shaft. It also prevents ring-shaped grooves in the guide channel arise that are inevitable when drilling and can be very annoying for the passage of the cross pins of the label holder to be attached.
  • peripheral edge sections of the U-shaped longitudinal groove are undercut in a V-shape in the region of the mounting shaft, because this makes the inward stamping of the peripheral edges easier and, above all, more uniform. If one provides that the edge edge sections of the U-shaped longitudinal groove in the assembly shaft have a greater radial distance from the needle axis both before and after the embossing process than the edge edge sections of the longitudinal groove in the needle area, the guide channel in the area of the assembly shaft has a greater radial distance Has expansion than in the needle area.
  • the hollow needle 1 shown in Fig. 1 consists of a one-piece, turned round steel part, which is provided at the front end with a tapered tip 2 and at the rear end with an assembly shaft 3, the diameter of which is approximately twice as large as the diameter of the thinner front Needle part 4. Between the thinner needle part 4 and the mounting shaft 3 there is a fillet-like transition 5.
  • a disk milling cutter 7 which has a U-shaped cutting profile 8 with V-shaped protruding cutting teeth 9 the rear end of the mounting shaft 3 ago milled a longitudinal groove 10, which radially ends in the vicinity of the tip 2 in an arc 11 corresponding to the circumferential curvature of the side milling cutter 7.
  • the side milling cutter 7 dips with its U-shaped circumferential profile 8 so deeply into the material of the hollow needle 1 that the center of the semicircular profile 8 coincides with the longitudinal axis 11 of the hollow needle 1.
  • the lateral cutting teeth 9 are namely in this case arranged at a radial distance from the circumference of the U-shaped cutter profile 8, which is larger than the radius of the thinner needle part 4.
  • edge edges 12 and 13 or 14 of the longitudinal groove 10 are embossed inward by means of an embossing die 15 which has approximately the width of the cutting profile of the lateral cutting teeth 9 of the side milling cutter 7 and which has stepped embossing surface sections 16 and 17, so that the one from FIG. 3 Obvious shape of a guide channel 10 'arises, which is characterized in that it has the shape of a slotted elongated hole in the area of the mounting shaft 3 and approximately the shape of an axially slotted bore in the area of the thin needle part.
  • the axial extent of the embossing die 15 or the axial extent of the embossing surface section 16 is selected such that the edge edges 14 of the thinner needle part 4 are not embossed inward over their entire length, but from one point 18 to the transition 5, so that between the Place 18 and the outlet end 19 of the longitudinal groove 10, an outlet slot 23 remains, through which the transverse pins 20 pushed from the shaft end through the guide channel 10 'of the label fasteners 21 shown in FIG. 8 lead out of the hollow needle or from their guide channel 10' in a radial movement can be.
  • the width of the longitudinal groove 10 worked in with the side milling cutter 7 thus remains, while in the region of the hollow needle 1 lying behind it, a guide channel 10 'is formed by the inward stamping of the peripheral edges 12, 13 and 14 an axial slot 22 is formed, the width of which is smaller than the width of the guide channel 10 'itself.
  • the thread-like part 21 'of the label fastener to be fastened slides through the axial slot 22 when the associated transverse pin 20 is pushed through the guide channel 10'.
  • the transition 24 between the stamping surface section 17 and the stamping surface section 16 of the stamping stamp 15 arcuately or obliquely.
  • the oval or slot-like cross-sectional shape of the section of the guide channel 10 'lying in the region of the mounting shaft 3 serves to facilitate the insertion of the transverse pins 20 into the rear section of the guide channel 10', in particular when - as is often the case in practice - the thread-like one Part 21 'of the label fastener 21 at the junction with the cross pin 20 is somewhat thicker than in the rest of the area.
  • a transverse groove 25 is provided at the rear end of the mounting shaft 3 of the hollow needle 1.
  • the rear end of the guide channel 10' can be provided with a cutting edge 28 by means of a frontal milling 27.
  • a disk milling cutter 7 ' is used to produce the longitudinal groove 10, which has the same cutting profile as the disk milling cutter 7, but in which the cutting teeth 9' projecting laterally in a V-shape have a smaller distance from the circumference of the U-shaped cutting profile 8 ', which is matched to the radius of the thinner needle part 4.
  • An embossing die 15 ' is therefore used for embossing the edge edges 14' of the longitudinal groove 10, which has a non-offset (FIG. 4), continuously flat embossing surface 17 '.
  • the longitudinal groove 10 produced with the milling cutter 7 'thus receives the cross-sectional shape shown in FIG. 5 with the edge edges 14' undercut in a V-shape in the region of the mounting shaft 3 '.
  • an at least approximately round guide channel 10/1 is formed which has the same cross-sectional shape over its entire length and has a longitudinal slot 22 '.
  • the hollow needle 1 ' has a radial, arc-shaped cutout 29 which is arranged in such a way that the longitudinal slot 22' and thus also the guide channel 10/1 at a point 18 'corresponding to the point 18 of the hollow needle 1 ends and opens into a radial outlet opening 23 'which extends between the point 18' and the outlet end 19 of the longitudinal groove 10.
  • this milling 29 it can be achieved that the transverse pins 20 of the label fasteners guided through the guide channel can emerge somewhat more easily from the hollow needle.
  • this cutout 29 is not absolutely necessary. Without it, the hollow needle is at least cheaper to manufacture due to the omission of one operation.
  • the manufacturing costs of the hollow needle 1 ' are the same as for the hollow needle 1, except that a stepped embossing die 15 is somewhat more expensive to manufacture than an embossing die 15' provided with a continuously flat embossing surface 17 '.
  • the hollow needles 1 and 1 ' can not only be manufactured much cheaper, but also better in quality than with the previously used methods, in which firstly a central bore, then the slot and finally the outlet opening in each case for producing the guide channel separate operations had to be generated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Labeling Devices (AREA)
  • Making Paper Articles (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Prostheses (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Adornments (AREA)
  • Pens And Brushes (AREA)
EP81104359A 1980-06-11 1981-06-05 Verfahren zur Herstellung einer Hohlnadel für Etikettenbefestiger od. dgl. Expired EP0041710B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104359T ATE5765T1 (de) 1980-06-11 1981-06-05 Verfahren zur herstellung einer hohlnadel fuer etikettenbefestiger od. dgl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3021799 1980-06-11
DE3021799A DE3021799C2 (de) 1980-06-11 1980-06-11 Verfahren zur Herstellung einer Hohlnadel für Etikettenbefestiger o.dgl.

Publications (3)

Publication Number Publication Date
EP0041710A2 EP0041710A2 (de) 1981-12-16
EP0041710A3 EP0041710A3 (en) 1982-04-07
EP0041710B1 true EP0041710B1 (de) 1984-01-04

Family

ID=6104293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104359A Expired EP0041710B1 (de) 1980-06-11 1981-06-05 Verfahren zur Herstellung einer Hohlnadel für Etikettenbefestiger od. dgl.

Country Status (10)

Country Link
US (1) US4455858A (https=)
EP (1) EP0041710B1 (https=)
JP (1) JPS5725236A (https=)
AT (1) ATE5765T1 (https=)
CA (1) CA1172954A (https=)
DE (1) DE3021799C2 (https=)
DK (1) DK151244C (https=)
ES (1) ES267657Y (https=)
NO (1) NO149534C (https=)
PT (1) PT73169B (https=)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042558A (en) * 1990-04-06 1991-08-27 Dennison Manufacturing Company Fastener dispensing needle and method of making
US5447465A (en) * 1993-08-19 1995-09-05 United States Surgical Corporation Method of treating needle blanks
AU676091B2 (en) * 1993-11-01 1997-02-27 Ethicon Inc. Process for manufacturing surgical needles
US6206755B1 (en) 1994-10-19 2001-03-27 United States Surgical Corporation Method and apparatus for making blunt needles
US5640874A (en) * 1995-06-02 1997-06-24 United States Surgical Corporation Progressive die/carrier apparatus and method of forming surgical needles and/or incision members
JP3463256B2 (ja) * 1996-07-25 2003-11-05 株式会社菱興社 中空針状物品及び中空針状物品の製造方法
JP2003095233A (ja) * 2001-09-21 2003-04-03 Riyoukoushiya:Kk 中空針状物品
US7076987B2 (en) * 2004-08-05 2006-07-18 Becton, Dickinson And Company Method of producing tapered or pointed cannula
US7086266B2 (en) * 2004-08-05 2006-08-08 Becton, Dickinson And Company Method of producing tapered or pointed cannula
JP2008513127A (ja) * 2004-09-17 2008-05-01 オルムコ コーポレイション 医療装置及び針製造方法
FR2956416B1 (fr) * 2010-02-18 2012-06-15 Michelin Soc Tech Aiguille pour l'insertion d'un fil dans un pneumatique
JP6960631B2 (ja) * 2017-10-18 2021-11-05 オルガン針株式会社 ミシン針
CN113950267B (zh) 2019-04-12 2024-04-02 艾利丹尼森公司 用于将元件紧固到支撑结构的装置和方法
USD923444S1 (en) 2019-04-12 2021-06-29 Avery Dennison Corporation Fastening apparatus
USD923446S1 (en) 2019-04-12 2021-06-29 Avery Dennison Corporation Cap for a nose of a fastening apparatus
USD923445S1 (en) * 2019-04-12 2021-06-29 Avery Dennison Corporation Fastening apparatus
USD935875S1 (en) 2019-11-25 2021-11-16 Avery Dennison Corporation Fastener
USD936467S1 (en) 2019-11-25 2021-11-23 Avery Dennison Corporation Fastener set

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1343396A (en) * 1920-06-15 Sylvania
GB353103A (en) * 1930-04-30 1931-07-23 William Hall & Company Ltd Improvements relating to needles
US2056201A (en) * 1932-03-31 1936-10-06 Max C Miller Loop lifting point and method of producing the same
US2010624A (en) * 1933-04-20 1935-08-06 Textile Machine Works Wire formed knitting implement
US2069878A (en) * 1935-05-07 1937-02-09 Dennison Mfg Co Attaching means
US2358304A (en) * 1942-12-07 1944-09-19 Cogsdill Twist Drill Co Method of making oil hole twist drills
US3470834A (en) * 1968-03-08 1969-10-07 Dennison Mfg Co Fastener attaching device
US3800386A (en) * 1969-02-26 1974-04-02 A Bishop Method and apparatus for manufacturing valve components
US3611965A (en) * 1969-06-02 1971-10-12 Illinois Tool Works Detachable guide needle
US4040555A (en) * 1976-03-26 1977-08-09 Monarch Marking Systems, Inc. Tag attaching apparatus

Also Published As

Publication number Publication date
NO149534C (no) 1984-05-09
DE3021799C2 (de) 1982-05-13
ATE5765T1 (de) 1984-01-15
NO149534B (no) 1984-01-30
JPH0152098B2 (https=) 1989-11-07
ES267657Y (es) 1983-11-16
PT73169B (en) 1982-07-01
EP0041710A3 (en) 1982-04-07
PT73169A (en) 1981-07-01
ES267657U (es) 1983-05-01
EP0041710A2 (de) 1981-12-16
CA1172954A (en) 1984-08-21
US4455858A (en) 1984-06-26
DE3021799A1 (de) 1982-02-25
DK151244B (da) 1987-11-16
JPS5725236A (en) 1982-02-10
DK240681A (da) 1981-12-12
DK151244C (da) 1988-04-11
NO811591L (no) 1981-12-14

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