US1605937A - Sewing-machine-feed regulator - Google Patents

Sewing-machine-feed regulator Download PDF

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Publication number
US1605937A
US1605937A US68816A US6881625A US1605937A US 1605937 A US1605937 A US 1605937A US 68816 A US68816 A US 68816A US 6881625 A US6881625 A US 6881625A US 1605937 A US1605937 A US 1605937A
Authority
US
United States
Prior art keywords
feed
eccentric
shaft
sewing machine
adjusting
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
US68816A
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English (en)
Inventor
Grieb Alfred
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
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 Singer Co filed Critical Singer Co
Priority to US68816A priority Critical patent/US1605937A/en
Priority to FR607905D priority patent/FR607905A/fr
Priority to DES72600D priority patent/DE539820C/de
Application granted granted Critical
Publication of US1605937A publication Critical patent/US1605937A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/22—Work-feeding means with means for setting length of stitch

Definitions

  • This invention relates to sewing machine feed-re atom and has for an object to provide'a eed-regulator of simplified construction which may be quickly and easily adjusted to. roduce any desired stitch-length 'and whic will retain its adjustment indefinitely.
  • ' other object of the invention is to provide a' feed-regulator of compact construc-- tion, the parts of which will not become loose from wear and the manufacture of which-mayv be carried on without expensive machining operations. Further objects of the invention will appear from the following description and clalms.
  • a full surface cylindrical contact is maintained between the feed-eccentric and a feed-adjusting eccentric, and a driving connection independent of the feed-adjusting eccentric is provided between the sewing machine shaft and the feed-eccentric.
  • This driving connection comprises a working joint ermitting the feed-eccentric to artake of t e combined diametrical and side-shift movement imparted'to it by rotary adjustment of the feed-eccentric.
  • the regulator comprises a cylindrical body-member having an axial bore to fit and be fixedlg secured to the sewing machine shaft.
  • feed-adjusting disk having on one side a fiat face .and on its other side an eccentric hubextension is'mounted on the body-member with its flat face in contact with the adjacent fiat face of the bod member.
  • the face of the feed-adjusting isk on the same side as the hub-extension is formed with a circular groove in the bottom of which is fitted an arcuate pressure late held in frictional engagement witht e flat bottom wall of the groove by means of spaced screws and spring-washers; such screws assing through an arcuate slot in the fee -adjusting disk and being threaded into the body-member.
  • An anchor pin havin a cylindrical shank is assed througha ho e in the (pressure plate between the spaced screws an is fitted-to a hole in the b0 -memb'er.
  • the anchor pin is formed with an enlar ed cylindrical head the sides of which are attened to fit into a radial slot in the inner flat face of a third disk-like member having an eccentric hub and an axial bore to, fit upon the eccentric hub of the intermediate or adjusting memher.
  • the eccentric hub of the third member constitutesthe feed and-re turn eccentric of the-machine and is connected by the usual p tman and feed-rocker to the feed-dog.
  • Another eccentric on the sewing machine shaft 1s connected as usual to im art rising and falling movements to the fee -dog.
  • the peripheral portion-of the feed-adjusting disk is formed with a notch which may be engaged by a finger-lever mounted in the machine frame and locked against turning while the operator turns the sewing machine shaft by hand to effect a relative shift'of the body and ad usting member's, thus varying the eccentricity of the feed-eccentric relative to the ..ax1s of the sewing machine shaft.
  • the working contact between the eccentric hub of the adjusting member and the thirdor feeding member is a full. cylindrical surface contact, and the working contacts between the'head of the anchor in and the walls of the radial groove in t e third or feeding member are, flat surface contacts.
  • the machined surfaces of the various parts are principally circular or cylindricahthus facilitating the manufacture of the dBVlCG 1n quantities on monitor lathes and reducing the number of remaining machining operations to a minimum.
  • Fig. 2- is a plan view of t e sewin machine bed plate showing the feeding mec anism therebelow.
  • Fig. 3 is a sectional view transversely of the sewing machine main-shaft on the line3-3, Fi 2.
  • Fig. 4' is a sectional view longitudina y of the sewing machine shaft on the line 44, Fig. 3.
  • Fig. 5 is a face view of the device with the feed-eccentric -member removed.
  • Fig.6 is a section on the line 6-6, Fig. 5.
  • Fig. 7 1s a disassembled pers ective view of? the p artsshown in 'Fig. 5.
  • ig. 8 is a pers tive view of the feed eccentric-member" a one and
  • Fig.9 is a dia rammatic view illlli tstratmgthe range of a justm'ent of the pa s..
  • the trate'd 1 represents the bed ofa-sewing machine, 2' the standard, 3' the overhanging head, 4, the reciprocating. needle, 51 the resser-foot, 6 the cloth-plate-'and".,7f the invention illusi ooper which is mounted onthema in-sliafts,
  • the body-member or supporting disk 20 Fixed to the sewing machine shaft 8 is the body-member or supporting disk 20 having a flat face 21..
  • the intermediate disk 22 Mounted to turn on and relative to the shaft 8- is the intermediate disk 22 having the shaft aperture 23 and eccentric hub 24.
  • the disk 22 has a flat face on one side which is held in frictional engagement with the flat face 21 of the body-member 20 by means of the spaced screws 25 and spring washers 26.
  • the screws 25 pass through the spaced holes 27 in the friction plate 28 which islet into the circular groove 29 in the other face of the disk 22.
  • These screws also pass through the semi-circular slot 30 in the disk 22.
  • the edge of the disk 22 is notched at 31 to receive the locking nose 32 of the springpressed finger-lever 33 fulcrumed at 34 on the bed 1.
  • the cylindrically apertured feed-eccentric 19 having at one end a disk-like head 35 the fiat face 36 of which is held close to or in engagement with the disk 22 by means of the collar 37.
  • This working joint or one point'driving connection preferably comprises a radial slot 38 formed in the inner face 36 of the head 35 of the feed-eccentric.
  • Into the slot 38 projects the enlarged head 39' of the anchor pin 39; the sides of the head 39' being fiattened at 4.0, 40, to snugly fit the slot as.
  • pin 39 passes through a hole 41 in the friction-plate '28 and into the hole 42 in the body-member 20. It constitutes a driving connection, independent of the feed-adjusting disk 22, between the shaft 8 and the feedeccentric 19. i
  • a suitable scale 43 indicating stitches per inch may be formed on or secured to the body-member 20 and the cloth-plate 6 may be formed with a window 44 to expose such scale to the operator.
  • the operator depresses the fingerthe nose 32 of the lever 33 enters the notch 31 in the adjusting disk 22. The operator then turns the shaft until the scale 43 indicates through the window 44-tl1e desired number of stitches per inch. This completes the adjustment.
  • the working contacts between the parts are surface contacts rather than line or point contacts, thus insuring long continued effectiveness of the device and freedom from lost motion due to wear.
  • the device is also of simple and compact construction and may be manufactured in quantities at low cost.
  • the working joint between the pin 39 and the walls of the slot 38 permits the feed-eccentric to follow or partake of the combined radial and side-shift movement imparted to it by rotary adjustment of the feed-adjusting eccentric.
  • a sewing machine feed-regulator combination with a body-member adapted to be fixed to a sewing machine shaft, of a feed-eccentric having a cylindrical aperture, an intermediate member frictionally secured to said body-member and having an eccentric hub fitted to the aperture in said feed-eccentric, and a single anchor pin-and-slot connection between said feed-eccentric and said body-member.
  • a shaft a-body member fixed to said shaft, a feed-adjusting member rotatable on and relatively to said shaft and having an eccentric portion, a feed-eccentricmember embracin the eccentric portion of said feedadjusting member and having a radially slotted face, and an anchor pin carried by said body member and entering the radial slot in the face of said feed-eccentric mem- 6.
  • a sewing machine feed-regulator the combination with a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US68816A 1925-11-13 1925-11-13 Sewing-machine-feed regulator Expired - Lifetime US1605937A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US68816A US1605937A (en) 1925-11-13 1925-11-13 Sewing-machine-feed regulator
FR607905D FR607905A (fr) 1925-11-13 1925-12-12 Régulateur d'entraînement pour machines à coudre
DES72600D DE539820C (de) 1925-11-13 1925-12-16 Stichstellvorrichtung fuer Naehmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68816A US1605937A (en) 1925-11-13 1925-11-13 Sewing-machine-feed regulator

Publications (1)

Publication Number Publication Date
US1605937A true US1605937A (en) 1926-11-09

Family

ID=22084868

Family Applications (1)

Application Number Title Priority Date Filing Date
US68816A Expired - Lifetime US1605937A (en) 1925-11-13 1925-11-13 Sewing-machine-feed regulator

Country Status (3)

Country Link
US (1) US1605937A (de)
DE (1) DE539820C (de)
FR (1) FR607905A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453072A (en) * 1947-04-24 1948-11-02 Singer Mfg Co Adjustable eccentric
US2466807A (en) * 1945-11-01 1949-04-12 Robert O Hein Vibration testing machine
US2491449A (en) * 1946-10-17 1949-12-13 Willcox & Gibbs Sewing Machine Stitch-adjusting mechanism for sewing machines
US2541573A (en) * 1945-08-17 1951-02-13 Danly Mach Specialties Inc Forming machine
US2583444A (en) * 1949-05-07 1952-01-22 Duerkoppwerke Ag Stitch regulator of sewing machines
US2643625A (en) * 1950-03-21 1953-06-30 Union Special Machine Co Work feeding mechanism for sewing machines
US2718860A (en) * 1950-03-21 1955-09-27 Union Special Machine Co Sewing machines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541573A (en) * 1945-08-17 1951-02-13 Danly Mach Specialties Inc Forming machine
US2466807A (en) * 1945-11-01 1949-04-12 Robert O Hein Vibration testing machine
US2491449A (en) * 1946-10-17 1949-12-13 Willcox & Gibbs Sewing Machine Stitch-adjusting mechanism for sewing machines
US2453072A (en) * 1947-04-24 1948-11-02 Singer Mfg Co Adjustable eccentric
US2583444A (en) * 1949-05-07 1952-01-22 Duerkoppwerke Ag Stitch regulator of sewing machines
US2643625A (en) * 1950-03-21 1953-06-30 Union Special Machine Co Work feeding mechanism for sewing machines
US2718860A (en) * 1950-03-21 1955-09-27 Union Special Machine Co Sewing machines

Also Published As

Publication number Publication date
FR607905A (fr) 1926-07-12
DE539820C (de) 1931-12-04

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