US3464097A - Felting needle - Google Patents

Felting needle Download PDF

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Publication number
US3464097A
US3464097A US642753A US3464097DA US3464097A US 3464097 A US3464097 A US 3464097A US 642753 A US642753 A US 642753A US 3464097D A US3464097D A US 3464097DA US 3464097 A US3464097 A US 3464097A
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US
United States
Prior art keywords
needle
barb
felting
barbs
groove
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
US642753A
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English (en)
Inventor
Josef Zocher
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.)
Singer Co
Original Assignee
Singer Co
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Filing date
Publication date
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Publication of US3464097A publication Critical patent/US3464097A/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

Definitions

  • This invention relates to needles used in textile processes or the like which needles have barbs or irregularities on their surfaces.
  • the invention is particularly directed to felting needles and methods of making the same in which the needles have relatively high fiber carrying capacity while minimizing the destruction of the fibers during the felting process.
  • the needle of the invention is formed by a novel die-pressing technique which permits the formation of a desired barb groove angle and protrusion kickup, or barb point as well as permitting formation of the fiber engaging surfaces of the barb as rounded surfaces, said barb formation being carried out in a single step. Since the fiber engaging surfaces of the needle barbs are substantially void of any sharp edges, a needle is produced wherein fiber destruction is minimized permitting relatively high fiber carrying capacity.
  • FIGURE 1 is an enlarged view of a felting needle of the invention
  • FIGURE 2 is an enlarged side view of a portion of the needle of FIGURE 1 showing a single needle barb;
  • FIGURE 3 is a front portion of the needle shown in FIGURE 2;
  • FIGURE 4 is a partial isometric view showing part of the mechanism for carrying out the method of the invention.
  • FIGURE 5 is a diagrammatic view of the apparatus showing the method of the invention.
  • FIGURE 6A-6D are views showing needles having varying shapes manufactured in accordance with the method of the invention.
  • FIGURE 7 is a partial enlarged view of a needle showing another embodiment of the invention.
  • FIGURE 8 is a side view of the needle portion shown in FIGURE 7;
  • FIGURE 9 is a partial view of a felting needle showing still another embodiment of the invention.
  • a felting needle of the type embodying the invention is shown therein as comprising a crank 12 connected to a needle shank portion 14 at the uppermost portion thereof, a blade portion 16 connected to the lowermost portion of the shank 14 and a point 18 connected to the bottom portion of the blade 16.
  • the blade portion 16 of the needle shown in FIGURE '1 is preferably triangular in section and includes a plurality of barbs 20 at the junction of the blade surfaces so that a blade portion having a triangular section, such as shown in FIGURE 4 and at 16a in FIGURE 6A, will have three sets of barbs, there being one set at each edge portion thereof.
  • each edge portion of the blade portion 16 is provided with three barbs per set with each of the barbs of each set preferably being offset relative to the barbs of each other set with respect to the longitudinal axis of the needle 10.
  • the barb 20 includes a barb groove 22 formed in one edge 24 of the needle blade 16 and a point or kickup portion 26. It will further be seen in FIGURES 2 and 3 that substantially all the edges of the barb 20 are rounded so that no sharp edges are present which may act as a cutting agent for destroying the fibers engaged by the barb 20. It should be particularly noted that the bottom portion 28 of the barb groove is also rounded at the intersection of the point 26 and the bottom wall 30 of the barb groove 22. Further, the bottom portion 28 or the above-identified intersection has a radius or rounded portion 32 which preferably extends in the direction of the longitudinal axis of the needle and towards the point portion 18. More particularly, it may be said that the rounded portion 32 preferably extends in a direction substantially parallel to the axis of the groove 22.
  • the point or kickup 26 will engage the fibers and draw them into the barb groove 22. As the needle proceeds or penetrates further into the batt the fibers will be drawn toward the bottom portion 28 of the barb groove 22.
  • the bottom portion 28 of the barb groove 22 has been generally formed as a sharp edge due to the methods of forming the barbs such as by a cutting tool or the like. The sharp edges of the prior felting needles present at the fiber engaging regions would act similar to a knife edge against the fibers and bring about a cutting action and therefore a destruction of many of the fibers carried by the barb 20.
  • the method of the invention permits the formation of a felting needle Wherein substantially all the surfaces of the barb are rounded, particularly at the fiber engaging portions thereof.
  • FIGURE 2 wherein A represents the opening angle or undercut angle of the barb, D represents the total barb depth, and H represents the dimension of the kickup or deviation of the point 26 from the normal surface of the edge 24 of the blade 16.
  • the undercut angle A, the barb depth D, and the kickup H are all critical dimensions required to produce the desired results in felting processes.
  • prior known methods such as forming the barb by the use of a cutting tool
  • the angle A will vary in accordance with the condition of the cutting tool or in accordance with the material of the needle blank, and it is substantially impossible to accurately produce the desired angle in a single step in the prior known methods.
  • the barb groove depth D, the kickup H, and the angle A, as well as the rounding of the fiber engaging surfaces may be formed in a single method step. Further, the desired major barb characteristics are relatively accurately produced through the method of the invention and it has been found that there is very little deviation in these desired characteristics from one needle to the next.
  • FIGURES 4 and 5 best illustrate the preferred method of fabricating the felting needle of the invention.
  • a suitable frame member 34 fixedly supports a lower die member 36 in a suitable manner with said die 36 including a triangularly shaped groove 38 for supporting the needle blade 16 therein.
  • An upper die member 40 is suitably connected to a shaft or rod 42 which in turn may be connected to a suitable hydraulic press or the like (not shown) for applying a pressing force to the needle 16 during the die pressing operation.
  • the upper die member 40 is provided with a plurality of serrations or grooves on the lower surface or needle engaging surface so that the upper die will grip the needle 16 in friction contact during the die pressing operation.
  • the lower die member is formed with at least one die configuration or shape 43 for forming the barb in the needle blade 16 during the fabrication thereof.
  • the die configuration could likewise be provided in the upper die 40 with the lower die 36 merely providing a support means for the needle.
  • the three barbs in each edge 24 of the needle blade 16 are formed simultaneously by a die having as many die configurations therein as are required to be fabricated in each edge 24 of the needle 16.
  • the frame member 34 supports a wedge shaped portion 44 thereon which may be integral therewith or fixedly connected thereto with said wedge shape portion 44 having an inclined or wedge surface 46 thereon.
  • the upper die member 40 has a corresponding inclined or wedge surface 48 thereon which mates with the inclined surface 46 of the wedge member 44 so that during the vertical pressing stroke of the die upper member 40 of the wedge member 44 will simultaneously impart a horizontal force to the die member 40 as it presses the needle 16 against the lower die 36. Therefore, the pressing force upon the needle blade 16, as it is pressed against the lower die 36, will be the resultant of the upper die pressing force and the horizontal force imparted by the wedge 44.
  • the required angle, A, of the barb the desired barb depth D, and desired kickup, H will be formed simultaneously.
  • the die configuration 43 also is formed so that the required rounded fiber engaging surfaces will be produced simultaneously with the formation of the barb angle and kickup dimensions.
  • FIGURES 6A-6D illustrate the various shapes of needle which may have barbs or other irregularities formed in their outer surfaces by the method described above.
  • the method of the invention is not limited to the specific shapes illustrated and that the method of the invention is applicable to substantially any desired shape.
  • substantially any size or shape barb configuration may be produced through the method of the invention in a relatively simple die pressing operation.
  • FIGURES 7-9 illustrate two nevel barb configurations which may be produced with the method of the invention. Variations in barb configuration are often desirable for producing desired effects in the appearance of a felted fabric.
  • FIGURES 7 and 8 illustrate one other embodiment of the needle of the invention which may be formed by the method described above.
  • the blade portion 16 again is illusnated as having a triangular shape and the barbs 20' are formed in an edge surface 24 as in the embodiment described above.
  • at least one of the barbs 20' has a point portion 26' which is skewed or slanted relative to the longitudinal axis of the needle blade 16'.
  • Forming a barb with a skewed point 26 may be relatively simply carried out by using the method of the invention by first forming the desired die configuration with a shape to fabricate the barb in the desired manner.
  • the three barbs 20" shown therein are formed so that each barb is a different size for each other barb.
  • the uppermost barb 26" is substantially smaller than the intermediate barb 26" which is in turn smaller than the lowermost barb 26".
  • the distance L between the uppermost barb 20" and the intermediate barb 20" is relatively greater than the distance L' between the intermediate and lowermost barbs 20 so that it is also within the scope of the invention to vary the distance between the barbs as well as their configuration.
  • the barbs of each of the embodiments of FIGURES 7-9 are the same as that illustrated and described in relation to the first described embodiment in that they all have the desired rounded surfaces at the fiber engaging surfaces.
  • the general barb configuration is not limited to that illustrated and the sizes and distance between the barbs may be varied, as desired, by simply constructing a die to fabricate the size of the barbs or the shape thereof in substantially any desired manner.
  • a felting needle and a method of fabricating the same are provided which results in improved felting procedures in that due to the construction of the felting needle of the invention, fiber destruction is substantially minimized during penetration of the needle for carrying out the felting process.
  • the method of the invention is effective to accurately produce barbs having the desired barb characteristics so that said characteristics may be formed without any substantial deviation from the desired dimensions, surface configurations or angles. It will also be seen that the barb fabrication produced by the method of the invention is performed in a relatively simple one step operation for forming the desired barb configuration as opposed to multi-step operations which are in common practice today.
  • a felting needle having an elongated blade portion, a groove formed in the outer surface of said blade portion with the axis of said groove being inclined from a line normal to the longitudinal axis of said b lock portion, a protrusion extending outwardly beyond the normal outer surface of said blade portion adjacent to said groove and the bottom of said groove being free of any straight edges and including a rounded surface extending in a direction substantially parallel to the groove axis.
  • a felting needle as recited in claim 1 wherein a plurality of grooves and corresponding protrusions are disposed in said blade portion and at least one of said grooves and protrusions having a diffierent configuration from each other groove and protrusion.
  • a felting needle as recited in claim 1 wherein at least two grooves and corresponding protrusions are disposed in said blade portion with the size of one of said grooves and its corresponding protrusion relative to said blade portion being different from the corresponding size of the other of said grooves and its corresponding protrusion.
  • a felting needle as recited in claim 8 wherein at least three of said grooves and protrusions are disposed in said blade portion with the size of each of said grooves and its corresponding protrusion relative to said blade portion differing from the corresponding size of each other of said grooves and its corresponding protrusion.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Forging (AREA)
US642753A 1967-06-01 1967-06-01 Felting needle Expired - Lifetime US3464097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64275367A 1967-06-01 1967-06-01

Publications (1)

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US3464097A true US3464097A (en) 1969-09-02

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US642753A Expired - Lifetime US3464097A (en) 1967-06-01 1967-06-01 Felting needle

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US (1) US3464097A (de)
DE (2) DE6606717U (de)
GB (1) GB1227986A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144058A1 (de) * 1970-10-14 1972-04-20 Foster, Edson Perkins, Manitowoc, Wis. (V.StA.) Nadel zum Verfilzen
FR2168089A1 (de) * 1972-01-14 1973-08-24 Torrington Co
US3774273A (en) * 1970-02-20 1973-11-27 Toray Industries Needle felting apparatus
US3877120A (en) * 1970-02-20 1975-04-15 Toray Industries Needle board
US6383623B1 (en) 1999-08-06 2002-05-07 Tex Tech Industries Inc. High performance insulations
US20100251525A1 (en) * 2009-02-12 2010-10-07 Groz-Beckert Kg Needle for a textile machine
US20100251526A1 (en) * 2009-02-12 2010-10-07 Groz-Beckert Kg Needle for a textile machine
CN102797116A (zh) * 2012-09-15 2012-11-28 江苏东方滤袋有限公司 用于生产含加筋层的厚型非织造材料的刺针
CN110102833A (zh) * 2019-06-11 2019-08-09 吴建鹏 一种金属管道两端锥度螺纹同时车出设备
US20190301066A1 (en) * 2016-07-05 2019-10-03 Groz-Beckert Kg Felting needle and method for producing at least one felting needle

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206842A1 (de) * 1992-03-04 1993-09-09 Saechsische Nadel Und Platinen Verfahren zur herstellung von schiebernadeln, insbesondere fuer naehwirkmaschinen, und schiebernadeln
US6233797B1 (en) * 1999-07-13 2001-05-22 Groz Beckert Kg Felt needle
DE102004037716B4 (de) 2004-08-04 2009-04-02 Groz-Beckert Kg Nachbehandlungsnadel für textile Flächengebilde
WO2019230450A1 (ja) * 2018-05-29 2019-12-05 オルガン針株式会社 フェルト針
WO2020017364A1 (ja) * 2018-07-18 2020-01-23 オルガン針株式会社 フェルト針

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678484A (en) * 1950-09-26 1954-05-18 Foster Edson P Felting needle
US2882585A (en) * 1956-01-24 1959-04-21 Du Pont Felting needle
US3307238A (en) * 1965-03-05 1967-03-07 Edson P Foster Felting needle
US3353243A (en) * 1965-12-15 1967-11-21 Edson P Foster Felting needle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1417294A (en) * 1920-08-12 1922-05-23 Hercules Mfg Company Gripping device
US2495926A (en) * 1947-01-30 1950-01-31 Edson P Foster Felting needle
FR1170801A (fr) * 1956-01-24 1959-01-19 Du Pont Aiguille de feutrage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678484A (en) * 1950-09-26 1954-05-18 Foster Edson P Felting needle
US2882585A (en) * 1956-01-24 1959-04-21 Du Pont Felting needle
US3307238A (en) * 1965-03-05 1967-03-07 Edson P Foster Felting needle
US3353243A (en) * 1965-12-15 1967-11-21 Edson P Foster Felting needle

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774273A (en) * 1970-02-20 1973-11-27 Toray Industries Needle felting apparatus
US3877120A (en) * 1970-02-20 1975-04-15 Toray Industries Needle board
DE2144058A1 (de) * 1970-10-14 1972-04-20 Foster, Edson Perkins, Manitowoc, Wis. (V.StA.) Nadel zum Verfilzen
FR2168089A1 (de) * 1972-01-14 1973-08-24 Torrington Co
US3762004A (en) * 1972-01-14 1973-10-02 Torrington Co Felting needle
US6579396B2 (en) 1999-08-06 2003-06-17 Tex Tech Industries, Inc. Methods of manufacturing high performance insulations
US6383623B1 (en) 1999-08-06 2002-05-07 Tex Tech Industries Inc. High performance insulations
US20100251525A1 (en) * 2009-02-12 2010-10-07 Groz-Beckert Kg Needle for a textile machine
US20100251526A1 (en) * 2009-02-12 2010-10-07 Groz-Beckert Kg Needle for a textile machine
US8245372B2 (en) * 2009-02-12 2012-08-21 Groz-Beckert Kg Needle for a textile machine
US8458870B2 (en) 2009-02-12 2013-06-11 Groz-Beckert Kg Needle for a textile machine
CN102797116A (zh) * 2012-09-15 2012-11-28 江苏东方滤袋有限公司 用于生产含加筋层的厚型非织造材料的刺针
US20190301066A1 (en) * 2016-07-05 2019-10-03 Groz-Beckert Kg Felting needle and method for producing at least one felting needle
US10920350B2 (en) * 2016-07-05 2021-02-16 Groz-Beckert Kg Felting needle and method for producing at least one felting needle
CN110102833A (zh) * 2019-06-11 2019-08-09 吴建鹏 一种金属管道两端锥度螺纹同时车出设备

Also Published As

Publication number Publication date
DE1760440B2 (de) 1977-12-22
DE1760440A1 (de) 1971-12-30
DE6606717U (de) 1970-11-12
DE1760440C3 (de) 1982-02-18
GB1227986A (de) 1971-04-15

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