US3572268A - Fur sewing machine - Google Patents

Fur sewing machine Download PDF

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Publication number
US3572268A
US3572268A US852413A US3572268DA US3572268A US 3572268 A US3572268 A US 3572268A US 852413 A US852413 A US 852413A US 3572268D A US3572268D A US 3572268DA US 3572268 A US3572268 A US 3572268A
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United States
Prior art keywords
fur
strips
feed
sewing machine
guide
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
US852413A
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English (en)
Inventor
Fred L Olday
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Individual
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Individual
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Publication date
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Publication of US3572268A publication Critical patent/US3572268A/en
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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/10—Work-feeding means with rotary circular feed members
    • D05B27/18—Feed cups
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/02—Pneumatic or hydraulic devices
    • D05D2207/04—Suction or blowing devices

Definitions

  • This invention relates to improvements in fur sewing machines and more particularly, it concerns an improved guide means for directing strips of fur to the feed mechanism of a fur sewing machine which operates to form a longitudinal seam joining the two strips of fur together.
  • the guide mechanism shown in the aforementioned patent is in the form of an inverted V-shaped guide shoe, having downwardly diverging side blades and a central separating blade, which functions so that the height to which the edge portions of the strips of fur project above the feed wheel pair in a horizontal needle machine can be controlled accurately by varying the height of the guide shoe relative to the feed wheels and needle.
  • the air stream is directed normal to the skins and does not take into account the transverse lie of the fur on the adjacent skin strips to be sewn.
  • the hair on the skin lies in a direction transversely to the length of the strip.
  • the hair on one of the two strips to be sewn lies or extends away from the edge of one strip whereas on the adjacent strip to be sewn thereto, the hair lies out over the edge to be sewn.
  • an improved apparatus for guiding fur strips to a sewing machine which both compensates for the transverse lie of fur on adjacent skin strips to be sewn as well as for different thicknesses of skin.
  • the present invention contemplates a guide shoe resembling that illustrated in the present inventors prior US. Pat. No. 2,588,281, but in which the central separating blade of the shoe is pivotal over at least the forward portion of its length to account for the imbalance of hair on opposite Sides of a transverse medial plane passing between the strips to be sewn.
  • Pivotal action of the separating blade is augmented further by an adjustable air jet nozzle which coacts with the separating blade in such a manner that when the blade is pivoted in one direction or toward that strip in which the hair lines away from the edge to be sewn, the air jet will be directed against the hair on the other strip which projects into the space between the two. In this manner, the edges of the skin to be sewn are cleared of hair in a highly eflective manner.
  • the guide shoe and air jet are supported from the sewing machine housing to be adjustable relative to the medial plane between the feed wheels of the sewing machine. Moreover, means are provided for rendering this adjustment automatic in accordance with travel of the movable one of the feed wheel pair as different thicknesses of skin are fed therebetween. Vertical adjustment of the guide shoe is also contemplated to insure the proper depth of seam uniformly in a manner resembling that of the guide mechanism illustrated in the aforementioned US. patent.
  • FIG. 1 is a perspective view of a fur sewing machine incorporating the improvements of the present invention
  • FIG. 2 is a fragmentary, enlarged cross-section taken on line 22 of FIG. 1;
  • FIG. 3 is a fragmentary perspective view of the machine shown in FIG. 1 but with the cover thereof opened;
  • FIG. 4 is an enlarged fragmentary cross-section taken on line 44 of FIG. 2;
  • FIG. 5 is a fragmentary perspective view similar to FIG. 3 but with the housing riser portion and cover pivoted to an open position;
  • FIG. 6 is an exploded view showing the components of the improved guide mechanism of this invention in a retracted position
  • FIG. 7 is a fragmentary front elevation of the assembled guide mechanism
  • FIG. 8 is an enlarged perspective view illustrating a component of the guide mechanism
  • FIG. 9 is an enlarged fragmentary front elevation illustrating the guide mechanism of this invention directing fur strips to the feed wheel pair of a fur sewing machine
  • FIG. 10 is an enlarged fragmentary cross-section taken on line 10-10 of FIG. 9;
  • FIG. 11 is an enlarged fragmentary cross-section taken on line 11-11 of FIG. 9.
  • FIG. 12 is an enlarged fragmentary cross-section taken on line 1212 of FIG. 9.
  • FIG. 1 A fur sewing machine incorporating the improvements of the present invention is shown in FIG. 1 to include a housing, generally designated by the reference numeral 10, and having a lower base portion 12, an intermediate riser portion 14 and cover portion 16.
  • the lower housing portion 12 includes a boss 18 for supporting the bearing and final drive components of an intermittently driven, rotatable feed wheel 20 having a fixed vertical axis established by the boss 18.
  • a second, movable feed wheel 22 is supported freely for rotation, also on a vertical axis, by a journal 24 carried on the lower end of an arm 26 formed as an integral extension of a beam 28 cantilevered from the front end of a slide rod 30 (FIG. 2).
  • Resilient means functions to bias the slide 30 and thus the arm 26 in a direction such that the movable feed wheel 22 is yieldably biased against the fixed feed wheel 20 as shown in FIG. 1.
  • a horizontal needle 34 is carried by reciproeating means supported by the housing base 12 above the feed wheels 20 and 22 in cooperation with a needle guide 36 fixed above the movable feed wheel 22.
  • the needle 34 cooperates with a looper 38 to form a seam between 4 two strips of fur skin fed by the wheels 20 and 22 when the machine is driven by power transmitted to a fiy wheel pulley 40.
  • the cover 16 carries a lubricant to be dispensed by suitable means to the movable machine components incased within the lower housing part 12 and is movable away from the upper portion of the housing part 12 to facilitate inspection and maintenance of such sewing machine components.
  • the cover 16 is pivotally supported on the riser 14 by hinges 42 located to the rear of the housing and retained in a closed position by latch means 43 on the front thereof.
  • the riser 14, is pivotally mounted to the top of the lower housing 12 by similar hinges 46 and retained in a closed position against the housing by resilient latch means 48.
  • a fiuid conveying tube 50 is rotatably and slidably supported by the riser 14 by bearing openings formed in the front and rear walls respectively of the riser.
  • the rear end of the tube 50 is connected to a source of compressed air (not shown), by a flexible hose 51.
  • the portion of the tube 50 projecting from the front of the riser is formed to provide a lateral arm 52 which carries the improved fur strip guiding mechanism of this invention, generally designated in the drawings by the reference numeral 54.
  • the guide mechanism 54 is positioned relative to the feed wheels 20 and 22 as well as the needle 34, both in term of vertical elevation or height above the operating plane of the needle and laterally with reference to a vertical medial plane passing through the nip of the rollers 20 and 22, by movement of the tube 50 on which it is supported by the arm portion 52 thereof.
  • relative vertical positioning of the guide mechanism 54 and the feed wheels 20 and 22 is effected by rotation of the arm 50 whereas lateral positioning of the guide mechanism relative to the medial plane of the feed wheel nip is effected by longitudinal sliding movement of the tube 50.
  • FIGS. 2-5 of the drawings The manner in which the tube 50 is positioned automatically to bring about proper position of the guide mechanism 54 may be understood by reference to FIGS. 2-5 of the drawings.
  • a collar 56 is clamped to the exterior portion of the tube 50 extending between the front and rear walls of the riser 14 by suitable means such as clamping screws 58.
  • the collar is formed with a radially extending car 60 for supporting a laterally extending pin 62 carrying a cam follower bearing 64 on its outboard end.
  • the locus of the follower bearing 64 will establish both the angular position of the tube 50 and thus of the arm 52 as well as the axial position of the tube 50 relative to the riser 14 in which it is slidably and rotatably mounted.
  • a pair of bifurcated cam members 66 and 68 are adjustably positioned within the riser 14 as shown in FIG. 2.
  • the member 66 is clamped about the slide 30 to which the movable feed wheel 22 is connected by way of the arm 26 and beam extension 28, thereby insuring that the cam member 66 will be moved directly with movements experienced by the axis of the feed roller 22 to accommodate different thicknesses of skin fed between it and the fixed roller 20.
  • the camming member 68 is carried for adjustable fore and aft positioning by a rotatable screw 70 having a position control knob 72 projecting from the front wall of the riser 14. As shown in FIG.
  • the camming member 66 carries a forwardly and downwardly directed camming surface 74 whereas the camming member 68 carries a rearwardly and downwardly facing, inclined camming surface 76, the camming surfaces 74 and 76 being formed on bifurcated interleaved fingers so that the members 66 and 68 may be engaged against lateral separation.
  • the respective camming surfaces 74 and 76 extend at 45 to the vertical and merge to establish an inverted V-shaped cradle for the follower bearing 64.
  • the bearing follower 64 is maintained in the cradle established by the surfaces 74 and 76 by a treadle (not shown) connected to linkage 77 coupled to the rear end of the tube 50.
  • a return spring 78 (FIG. imparts a rotational bias on the tube 50 against the treadle.
  • a mercury switch 79 (FIG. 1) is carried by the link 77 to control the delivery of air to the hose 51 in a known manner.
  • the guide mechanism 54 includes a guide shoe 80 having an elongated ridge plate 81 and a pair of outwardly diverging side blades 82 extending from the sides of the ridge plate 81.
  • a bifurcated supporting plate 84 extends upwardly from the ridge plate '81 for attachment to a strut 86 by a screw 88, the strut 86, in turn, being attached adjustably to the terminal end of the tube arm 52 by a further screw 90.
  • the leading end of the shoe 80 is formed with a notch 92 (FIG.
  • a pivotal separating blade 94 (FIG. 6) having a similar notch 96 formed therein at the base of an upstanding control lever portion 98.
  • the separating blade 94 tapers rearwardly to a point 100 at its trailing end.
  • the shoe 80 and separating blade 94 are preferably assembled by advancing the blade 94 longitudinally under the ridge plate 80 of the shoe until the notches 92 and 96 interengage to establish a pivotal connection between the blade 94 and the shoe 80.
  • the trailing tip 100 of the blade 94 is soldered, welded or otherwise fixed to the ridge plate 81 centrally thereof.
  • An air nozzle in the form of a cylindrical sleeve 102 is rotatably mounted on the open end of the tube arm 52 and carries a plurality of inclined louver-like vanes 104 or other fluid directing means across the terminal end or mouth thereof.
  • An aperture 106 formed in the side of the sleeve 102 is notched to cooperate with a pin 108 on the arm 52 to facilitate angular adjustment of the nozzle and thus of the vanes on the tube arm 52.
  • a knob 110 may be provided on the nozzle 102 to facilitate such adjustment manually.
  • the mouth end of the sleeve 102 is formed with a notch 112 to receive the control arm 98 on the separating blade 94, the assembled connection of these two members being illustrated most clearly in FIG. 7 of the drawings.
  • the notch 112 is located to lie in a diametric plane normal to the vanes 104, or parallel to the direction in which air is deflected by the vanes 104, and on the side of the sleeve 102 toward which the air is directed by the vanes. Because of this arrangement, when the nozzle 102 is rotated to change the direction of air flow as directed by the vanes 104, the upstanding control arm 98 on the separating blade 94 will be carried with the notch to pivot the blade 94 in a direction opposite to that in which air is directed by the vanes. The importance of this interrelation of the blade 94 and the nozzle 102 may be appreciated by reference to FIGS. 10-12 of the drawings. The cross-section through a pair of fur strips A and B in FIG.
  • the two strips A and B each include a skin S and fur F, the skins being symmetrically disposed relative to a medial plane YY which lies midway between the feed Wheels 2 0 and 22. Because of the natural pitch or lie of the fur F on the respective skins, the fur on the strip A extends over the edge of the skin and into the medial plane YY whereas the fur on the skin B extends in the other direction or away from the medial plane YY.
  • the operator To prepare the machine for operation, the operator first determines the lie of the fur F on the two strips A and B to be sewn and adjusts the nozzle 102 so that the proper notch in the opening 106 therein registers with the pin 108 on the arm 52.
  • the nozzle ' would be adjusted so that the vanes 104 therein were inclined toward the left of the medial plane YY and so that the blade 94 beneath the ridge plate 81 in the shoe is inclined toward the right as shown respectively in FIGS. 11 and 12.
  • the rest position of the arm 52 will be elevated to that shown by phantom lines for example, in FIG. 9 of the drawings.
  • the treadle (not shown) to which the linkage 77 is connected is depressed, causing air to how through the tube 50 and out through the nozzle 102, and rotating the tube 50 so that the arm moves downwardly to the position illustrated in solid lines in FIG. 9 of the drawings.
  • This operative position of the arm 52 and thus of the guide mechanism 54 is established by engagement of the follower bearing 64 on the pin 62 connected to the tube 50 (FIGS. 2 and 4) moving into the inverted V-shaped cradle established by the inclined camming surfaces 74 and 76 on the members 66 and 70 respectively.
  • the cam member 66 will be moved accordingly. Because of the 45 disposition of the cam surfaces 74 and 76, the locus of the cradle formed thereby and thus of the bearing follower 64 will be moved through half the distance through which the wheel 22 is moved to maintain the feeding center of the guide shoe 80 and blade 94 on the medial plane between the feed wheels 20 and 22. Some attendant vertical repositioning of the guide shoe 80 will occur with such lateral positions. Because the swing of the shoe approaches tangency with the plane of the needle 34, however, such vertical repositioning will be negligible. If on the other hand, the wheel moves through a distance exceeding that anticipated with the particular skins of the fur strips being sewn, an appropriate adjustment can be made by repositioning the cam member 68 by manual rotation of the knob 72.
  • a guide for directing strips of fur to a fur sewing machine comprising: a guide shoe having an elongated ridge plate portion and a pair of outwardly diverging side blades extending from said ridge plate portion, and a separating blade mounted centrally along said ridge plate portion extending between said side blades in generally parallel relation to the direction of strip feed,
  • said separating blade being pivotable over at least the front portion of its length at the juncture thereof with said ridge plate portion toward one or the other of said side blades.
  • the apparatus recited in claim 1 including means to adjust and secure the pivotal position of said separating blade relative to said shoe.
  • Apparatus for guiding strips of fur to a fur sewing machine comprising in combination: a guide shoe having an elongated ridge plate portion and a pair of outwardly diverging side blades extending from said ridge plate portion, a separating blade mounted centrally along said ridge plate portion and extending between said side blades, said separating blade and said side blades establishing adjacent paths of feed for a pair of fur strips to be sewn, one such path on each side of said separating blade, said separating blade being pivotable over at least the front portion of its length at the juncture thereof with said ridge plate portion toward one or the other of said side plates, and means positioned in front of said guide shoe for discharging a stream of air between said paths of feed to clear hair from the edges of the skin of the fur passing through said guide shoe and to be joined by sewing.
  • said air stream discharging means comprises a nozzle in the form of a rotatably adjustable cylindrical sleeve defining a discharge mouth, and at least one inclined vane across said mouth to direct air in the direction of inclination of said vane.
  • sa d separating blade includes an upstanding control arm near the front portion thereof, and means engaging said control arm with said sleeve to pivot said separating blade in a direction opposite to that direction in which the air stream is directed by said nozzle.
  • said means engaging said sleeve with said control arm includes a notch formed in the mouth end of said sleeve, said notch receiving the upper end of said control arm and being located in a diametric plane normal to said vane and offset from said vane in the direction to which the air is directed thereby.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US852413A 1969-08-22 1969-08-22 Fur sewing machine Expired - Lifetime US3572268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85241369A 1969-08-22 1969-08-22

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US3572268A true US3572268A (en) 1971-03-23

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US852413A Expired - Lifetime US3572268A (en) 1969-08-22 1969-08-22 Fur sewing machine

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US (1) US3572268A (enrdf_load_stackoverflow)
JP (1) JPS5014181B1 (enrdf_load_stackoverflow)
FR (1) FR2052366A5 (enrdf_load_stackoverflow)
GB (1) GB1281678A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628475A (en) * 1970-06-09 1971-12-21 Pfaff Ag G M Device for sewing plush fabrics or furs
US3650227A (en) * 1968-12-30 1972-03-21 Fred L Olday Fur sewing machine
US4094258A (en) * 1976-10-29 1978-06-13 Caesar Bonis Fur guide for a fur-sewing machine
US4557205A (en) * 1983-08-26 1985-12-10 J. Strobel & Sohne Gmbh & Co. Fur sewing machine with heated air blower
CN104420085A (zh) * 2013-09-04 2015-03-18 台州市佳静衣车有限公司 直驱式裘皮机
CN108547067A (zh) * 2018-05-03 2018-09-18 杭州杭丝时装实业有限公司 衣领缝制夹具及其缝制方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01134627U (enrdf_load_stackoverflow) * 1988-03-07 1989-09-13

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650227A (en) * 1968-12-30 1972-03-21 Fred L Olday Fur sewing machine
US3628475A (en) * 1970-06-09 1971-12-21 Pfaff Ag G M Device for sewing plush fabrics or furs
US4094258A (en) * 1976-10-29 1978-06-13 Caesar Bonis Fur guide for a fur-sewing machine
US4557205A (en) * 1983-08-26 1985-12-10 J. Strobel & Sohne Gmbh & Co. Fur sewing machine with heated air blower
CN104420085A (zh) * 2013-09-04 2015-03-18 台州市佳静衣车有限公司 直驱式裘皮机
CN104420085B (zh) * 2013-09-04 2017-02-08 台州市佳静衣车有限公司 直驱式裘皮机
CN108547067A (zh) * 2018-05-03 2018-09-18 杭州杭丝时装实业有限公司 衣领缝制夹具及其缝制方法
CN108547067B (zh) * 2018-05-03 2023-08-22 杭州杭丝时装集团有限公司 衣领缝制夹具及其缝制方法

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Publication number Publication date
GB1281678A (en) 1972-07-12
JPS5014181B1 (enrdf_load_stackoverflow) 1975-05-26
DE2024284A1 (de) 1971-03-11
FR2052366A5 (enrdf_load_stackoverflow) 1971-04-09

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