US3168064A - Embroidery appliance adapted to be attached to a sewing machine - Google Patents

Embroidery appliance adapted to be attached to a sewing machine Download PDF

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Publication number
US3168064A
US3168064A US232168A US23216862A US3168064A US 3168064 A US3168064 A US 3168064A US 232168 A US232168 A US 232168A US 23216862 A US23216862 A US 23216862A US 3168064 A US3168064 A US 3168064A
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United States
Prior art keywords
frame
embroidery
pattern
pattern bar
tappet
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Expired - Lifetime
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US232168A
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English (en)
Inventor
Fresard Marcel
Bucher Fred
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Mefina SA
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Mefina SA
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/24—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing formed by general-purpose sewing machines modified by attachments, e.g. by detachable devices
    • D05B3/243—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing formed by general-purpose sewing machines modified by attachments, e.g. by detachable devices for embroidering, e.g. monograms
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/24—Feed-dog lifting and lowering devices

Definitions

  • EMBROIDERY APPLIANCE ADAPTED TO BE ATTACHED TO A SEWING MACHINE 4 Sheets-Sheet 3 Filed Oct. 22, 1962 //VVE/Y TOQS M02654 F'EESA R p FEED 50 (#52.
  • EMBROIDERY APPLIANCE ADAPTED TO BE ATTACHED TO A SEWING MACHINE Filed Oct. 22, 1962 4 Sheets-Sheet 4 //v1/ ,v 7-025 nmece L Peas/9R0 F250 BUCf/ELR.
  • the present invention concerns an embroidery appliance for sewing machines comprising a support frame for the piece to be embroidered, this frame being guided so as to be capable of being displaced in two mutually perpendicular directions subject to the action of two mechanisms each comprising a tappet or follower of the profile of an element constituting a pattern of the embroidery stitches to be sewn.
  • the object of the present invention is to provide an embroidery appliance in which the above-mentioned inconveniences are eliminated.
  • each of the mechanisms of control of the frame comprises a device for transmission between the respective tappets and the frame capable of being made alternately active for rigidly transmitting to the frame the position given to the tappet by the profile of the pattern and being inoperative for making the position of the tappet independent of the position of the frame, by permitting the retraction of the tappet from the profile of the pattern, a locking device fixing the frame in position when the transmission devices are inoperative.
  • FIG. 1 is a plan showing a first embodiment of embroidery appliance in accordance with the invention, the tappets being in a position retracted from the pattern.
  • FIG. 2 is a section taken on a line IIl'I of FIG. 1;
  • FIG. 3 is a transverse section taken on the line III-Ill of FIG. 1;
  • FIG. 4 is a plan view similar to that of FIG. 1 showing the tappets in contact with the pattern
  • FIG. 5 is a section taken on the line VV of FIG. 4;
  • FIG. 6 is a transverse section taken on the line VI-VI of FIG. 4;
  • FIG. 7 is a plan view of a second embodiment of an embroidery appliance in accordance with the invention in the position in which the tappets are retracted from the pattern;
  • FIG. 8 is a view similar to that of FIG. 7 but showing the tappets in the position in contact with the pattern
  • FIG. 9 is a longitudinal section taken on the line IXIX of FIG. 8;
  • FIG. 10 is a transverse section taken on the line XX of FIG. 8.
  • FIG. 11 is a perspective view of one or other of the illustrated embodiments of the embroidery appliance, shown on a sewing machine.
  • the embroidery appliance which is illustrated comprises a frame I intended to receive the pieces to be embroidered to (shown in FIG. 11).
  • This support frame for the embroidery pieces is guided so as to be capable of displacement in two mutually perpendicular directions.
  • the frame 1 is engaged on a spindle 5 by way of two lugs 3, 4 formed integrally with the frame; these lugs can thus slide transversally with respect to the free arm 6 (FIGS. 10 and 11) of the sewing machine.
  • This spindle 5 is carried by a support 7 which also carries spindle 8 perpendicular to the spindle 5.
  • This spindle 8 is adapted to slide into two bearings 9 integral with the base plate 10 of the appliance.
  • the support 7 can then slide in the longitudinal direction with reference to the sewing machine arm 6 due toits spindle 8 being engaged in the bearings 9.
  • Two mechanisms are provided for causing the displacements of the frame 1 in the two perpendicular directions initiated by a pattern, constituted in the present case by a pattern bar 13 presenting two profiles 14, 15.
  • Each of these mechanisms comprises a tappet 16 or 17, designed to come into contact with the profiles 14, 15 respectively of the pattern bar 13.
  • Each of the two mechanisms comprises a transmission device between the tappet 16 or 17 and the frame 1, this transmission device being adapted to be rendered active for rigidly transmitting to the frame 1 the position given to the tappets 16 and 17 respectively, by the profile 14 or 15 respectively, and to be rendered inoperative for making the position of the tappets 16, 17 as the case may be independent of the position of the frame 1.
  • These transmission devices moreover each include a block 18 capable of sliding in a slideway 19 carried by the base plate 10.
  • a link 21 is pivotally connected at 20 to each block 18 and this link 21 is pivoted at 22 to a second link 23 connected by a pivot 24 to another block 25.
  • Each pair of links 21 and 23 constitutes a knuckle joint interposed between the blocks 18 and 25.
  • a member 26 presenting an elongated aperture 27 is disposed between the two knuckle joints 21, 23 of the two transmission devices; the aperture 27 is ngaged on a pin 28 fixed to the base plate 10. This member 26 also presents a slot 29 in which the adjacent ends of the pivots 22 of the two knuckle joints are engaged.
  • This member 26 forms part of a reciprocatory mechanism causing successive straightening and bending of the two knuckle joints 21, 23 in such a way as to render active or inoperative the transmission of movement between the tappets 16, 17 respectively and the frame 1.
  • This slide mechanism will be described in further detail below.
  • the transmission of the movements of the blocks to the frame '1 is effected in the following manner.
  • the upper block 25 (see FIG. 5) carries a pin 30 engaging in a forked end 31 of a bellcrank lever 32 pivoting at 33 ion the base plate 10.
  • the other end 34 of this lever acts against an extension of the lug 3 to impart to the frame .1 transverse movements with reference to the arm 6 of the sewing machine.
  • the lower block 25 is connected directly by a screw 35 to the support 7 for transmitting to the same, and thus also to the frame 1, movements in the longitudinal direction with reference to the arm 6 of the sewing machine.
  • a locking device enables the frame 1 to be fixed in an inoperative position. That is to say, the locking device retains the frame in position provided a force greater than the force of the springs 11 and 12 is not exerted thereon.
  • the locking device comprises a brake acting on '3 the transmission members between the knuckle joints 21, 23 and the frame 1. These transmission members are constituted by the blocks 25.
  • the brake includes a friction shoe 36 guided in a slideway 37 integral with the base plate 10.
  • the shoe 36 is subject to the action of a lever 38 swing'able about a pivot '39.
  • the lever 38 is subject to the action of a return spring 40 tending to cause it to pivot in an anti-clockwise direction with reference to FIG.
  • a third cam 49 is fixed on the camshaft 43'.
  • This cam 49 acts against the end 50 of a lever 51 swingable about a. pivot 52 fired to the base plate 10.
  • the other end 53'of this lever 51 carries'a pan/1'54 pivoted thereon.
  • Thepawl 54 is engaged against a saw-toothed rack 55 provided on the rear of the pattern bar 13.
  • the .pawlg5'4' is subject to the action of a return spring 56 urging it in the rearward direction which thus ensures that the end 50 of the lever 51 is maintained in contact with the,cam;49.,,
  • pattern bar 13 ⁇ is introduced transversely in the slideway 57 situated for this purpose transversely of the housing 58 of the appliance.
  • This pattern bar 13 is pushe'dinto' the slideway 57 until a springretention pawl'59 is. engaged against the first tooth of a rack" 55; Care should be'taken before thus inserting the pattern bar 13 that the tappets' '16 and ⁇ 17 are in a retracted position.
  • the equipment is then ready for sewing the first embroidery point. As soon as the sewing machine is started, rotation of the camshaft 43 successively causes:
  • the second form of construction of the embroidery appliance shown in FIGS. 7 to 10,likewis'e comprises a frame 1 slidably connected by lugs 3 and 4to spindle 5 carried by a support 7.
  • Thistsupport 7 similarly carries a spindle 8 adapted to slide in bearings 9 carried by a base plate 19.
  • a spring 11 engages around the spindle 5 and likewise a spring 12 engages around the spindle 3, these two springs tending to bring; the frame back into a fixed resting position.
  • the positions of the frame 1 are likewise dependent upon the shape oftheprofiles 14 and 15 0f a pattern bar 13 engaged transversely in a slideway 57 of the housing 58-of the appliance.- 1
  • the mechanism of the appliance is driven by a similar camshaft 43 extending through the base plate 10 of the appliance.
  • FIG. 10 illustrates one example of the possible connection of this camshaft 43 to the motor mechanism of the sewing machine.
  • FIG. 10 there is shown in section the free lower arm 6 of a sewing machineyin the interior of the arm 6 therecan be seen a horizontal drive shaft 60 for the shuttle mechanism, or as the case may be, for the. usual feed mechanism'for the pieces to be" sewn on the machine.
  • a tangential screw or worm 61 integral with the shaft 60 is in driving engagement with a toothed Whflfil' 62twhich in turn is indriving'engagement with a wheel 63 integralwith a spindle 64.
  • the camshaft 43 of the appliance is arranged to coincide with this spindle 64 whenthe'appl-iance is-put in-place on'the sewing machine.
  • Thecoupling of the spindle 64 tothe camshaft 43 can be etfectedby any known means of rapid: coupling.
  • the spindle 64 has an eccentric hole 65'within which a pin 66 is slidable subject to the action of a spring 67.
  • This pin; 66 is designed to engage in a hole 68 having a corresponding eccentricity arranged in the driving shaft 43;
  • the positions impartedto the frame 1 as'a function of the profiles 14 and 15 of the pattern bar 13, are given to it through the intermediary of mechanisms comprising a rod 69, 70, respectively, disposed between'thetappets 16, 17, respectively, and the lever 32a or the support 7 respectively.
  • the tappet 16 designed to'impart the transverse positions to the frame 1 with reference to the sewing machine arm 6 acts on the frame lug 3 through the intermediary of a lever 32a piv oted' atf33; in the housing 58, after which the tappe't 17 transmits the longitudinal positionsto the frame l'through the intermediary'of the r0d'70 acting directly against the support 7.
  • the rods 69 and 70 are formed in two sections adapted to slide relative to one'another.
  • the rod 69 comprises afirst section 71 carrying the tappet 16'. This section slides in a cylindrical bore 72 of the housing 58;
  • the second section of the rod 69 is constituted by a piston or plunger 73sliding in; a cylindrical guide' 74 integral with the housing 58.
  • This plunger 73 carries an'extension 75 of reduced section which engages in a bore 76 having a section corresponding to the section 71.
  • a spring 77 is engaged around this extension 75. The length of the spring 77 is designed so that in its relaxed'condition this spring determines the total effective length of the rod 69 which is of telescopic construction.
  • Each of sections 71 of the rods 69, 70 has a projection 78 (see FIGS. 9 and 10) on its lower portion.
  • a member 79 is designed to come in contact with the two projections 78 during the phase in which the tappets 16 and 17 are retracted from the profiles 14 and 15.
  • This member '79 is articulated at 81, 81 by two links 80 to the housing 58 so as to define therewith a formable parallelogram.
  • the single camshaft 43 carries a first cam 42: designed to act on a brake composed of two shoes 36a, 36b. These shoes act on the plungers 73 of the rods 69, 79, respectively.
  • This brake comprises a lever 38 pivoted at 82 on a member 83 adapted to slide transversely in a passage 84 disposed in a boss 85 of the housing 58.
  • This member 83 has a lateral extension 85 designed to act on the shoe Sela.
  • the lever 38 carries at one of its ends a screw 87 forming a controllable abutment by means of which it acts against the shoe 36a.
  • the other end of the lever 38 is designed to follow the profile of the cam 42.
  • the articulated arrangement of the lever 38 on the slidable member 83 ensures that the braking efforts of the shoes 36a and 3612 are balanced on the plungers 73 of the rods 69, '70, respectively.
  • the second cam 44 integral with the camshaft 43 acts on an arm 88 oscillating about a pivot 89 integral with the housing 58.
  • the end 91) of this arm 88 acts against the member 79 for causing the tappets 16 and 17 to be brought into the position in which they are retracted from the profiles 14 and (see FIG. 7) and for causing the said tappets to enter into contact with the said profiles.
  • the third cam 49 which is carried by the camshaft 43 acts as in the fi st form of construction on the end 50 of the lever 51 pivoting at 52 on the housing of the appliance.
  • the end 53 of this lever carries a pawl 54 for feeding the pattern bar 13 by engagement in a rack 55 disposed at the back of this pattern bar.
  • a return spring 56 tends to pull the pawl back and thus ensures the end 50 of the lever 51 being maintained against the cam 49.
  • a re taining pawl 59 constituted by a simple plate spring is likewise provided for co-operating with the rack 55 and ensuring that the pattern bar 13 is kept in position.
  • the pattern bar 13 is engaged in the aperture 57 of the housing 53 until the first tooth of the rack 55 enters into contact with the pawl 54. Care should be taken before inserting the pattern bar that the tappets 16 and 17 are in the retracted position as shown in FIG. 7. In this position the shoes 36a and 36b lock the plungers 73. After starting the sewing machine the successive phases of operation of the appliance are then as follows:
  • the length of the pattern bar 13 is used to the maximum because each point of the profile remote from the thickness of one tappet may be utilised to impart new coordinates to the frame 1.
  • each design of embroidery imparted by one pattern bar can be formed on a relatively short length thereof.
  • the length of the pattern bars may vary according to the embroidery design desired and these rules may, depending upon their length, be in the form of bands which are more or less flexible, for example of steel or of a plastic material which is moulded or pressed.
  • an embroidery appliance adapted to be attached to a sewing machine and including a work-piece supportting frame guided for displacement relative to the sewing machine in two directions at right angles to each other, a pattern bar presenting two profiles each shaped as a function of one coordinate of an embroidery pattern, and two mechanisms each having a tappet engageable with one pattern bar profile for effecting frame displacements to positions prescribed by the pattern bar; the improvement comprising a transmission device for each of said two mechanisms disposed between each tappet and the frame, means alternately transmitting to the frame the position given to each tappet by the profile of the related pattern bar and retracting the tappet from the profile of the related pattern bar independently of the position of the frame, and brake means for locking the transmitting means during the time intervals when the tappets are out of engagement with the profiles of the pattern bar.
  • said transmission device includes a first pair of slidably mounted blocks each having a tappet secured thereto, a second pair of slidably mounted blocks, knuckle joints connecting each of the blocks of the first pair of blocks with a related block of the second pair of blocks, means connecting each of said second pair of blocks to the frame whereby displacement of one of said blocks effects displacement of the frame in one direction and displacement of the other block effects displacement of the frame in the other said direction, whereby when saidv knuckle joints are straight they transmit tappet displacements to the frame through said blocks and when bent, retract the tappets from the profile of the related pattern bar independently of the position of the frame.
  • said transmission device includes, a pair of rods, oppositely disposed slidable members able members from each other, the slidable member at one end of each of said rods-having a tappet secured there-' to, the slidable members at the other ends of said rods acting on said frame'to effect displacement thereof in two directions at right angles to'each other.
  • An' embroidery appliance for attachment to a sewing machine having an arm and rotary mechanism within said arm, said appliance comprising a housing, a camshaft journalled in and extending through said housing, means for detachably coupling said camshaft in a predetermined angular relative position to said rotary mechanism, a workpiece supporting frame mounted for displacements in two mutually perpendicular directions relative to said housing, brake means for locking the frameiin its position relative to said housing, a first cam fixed on said camshaft and adapted to periodically actuate said brake means, a pattern bar presenting profiles for defining an embroidery pattern mounted in said housing so asto be displaceable relative thereto, two tappets each displaceable relative to the housing. into contact with the pattern bar profiles, means for transmitting to the frame in said two' directions respectively displacements corresponding to respective,
  • .loaded telescopic rods each comprising two relatively displaceable sections and a spring urging said sections into a predetermined relative position.
  • an embroidery appliance comprising a frame for supporting a workpiece mounted for displacement in two mutually perpendicular directions relative to the sewing machine arm, pattern means presenting profiles as a function of an embroidery p'attern and' being displaceably mounted relative to said arm, tappet means displaceable relative to said arm for contacting said pattern means and assuming positions defined by the profiles thereof, transmission means for imparting positions to the frame responsive to positions of said tappet means, braking means for successively locking and releasing the frame in its position relative to said arm, means for selectively, retracting said tappet means from said pattern means whilst rendering the transmission means inoperative, feeding means for eifecting stepwise displacements. of the pattern means, and control means for actuating in mutually timed relationship said braking means and said tappet means retracting means and said feeding means, whereby, during displacement of the pattern means the tappet means is retracted therefrom independently of the position of the frame.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US232168A 1961-10-26 1962-10-22 Embroidery appliance adapted to be attached to a sewing machine Expired - Lifetime US3168064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1242961A CH373944A (fr) 1961-10-26 1961-10-26 Appareil à broder pour machine à coudre

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US3168064A true US3168064A (en) 1965-02-02

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US232168A Expired - Lifetime US3168064A (en) 1961-10-26 1962-10-22 Embroidery appliance adapted to be attached to a sewing machine

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US (1) US3168064A (id)
AT (1) AT245353B (id)
BE (1) BE624018A (id)
CH (1) CH373944A (id)
DE (1) DE1159746B (id)
ES (1) ES281671A1 (id)
GB (1) GB948572A (id)
NL (2) NL143637B (id)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369508A (en) * 1965-08-25 1968-02-20 Mite Corp Sewing machine attachment for making monograms and other designs
US3490399A (en) * 1966-01-06 1970-01-20 Schmid Arthur Pattern displacement and adjustment device for stitching machines
US3592152A (en) * 1968-10-23 1971-07-13 Riccar Sewing Machine Co Ltd Attachment for embroidering initial letters, patterns and the like in a zigzag sewing machine
US3682118A (en) * 1970-07-08 1972-08-08 Bunsaku Taketomi Adapter device for stitching letters
US3706291A (en) * 1971-08-26 1972-12-19 Singer Co Incremental pattern control system for sewing machines
US4932341A (en) * 1989-05-08 1990-06-12 Moore Iii Edgar F Sewing apparatus
CN104630992A (zh) * 2015-02-09 2015-05-20 林元强 假眼机的连续送料机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1575285A (en) * 1922-04-21 1926-03-02 Charles J Sibbald Sewing machine
US1626256A (en) * 1921-11-02 1927-04-26 Schwarzmann Leon Automatic embroidering machine
US2684041A (en) * 1951-11-08 1954-07-20 Texas Machine Attachment Compa Work holder attachment for sewing machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1626256A (en) * 1921-11-02 1927-04-26 Schwarzmann Leon Automatic embroidering machine
US1575285A (en) * 1922-04-21 1926-03-02 Charles J Sibbald Sewing machine
US2684041A (en) * 1951-11-08 1954-07-20 Texas Machine Attachment Compa Work holder attachment for sewing machines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369508A (en) * 1965-08-25 1968-02-20 Mite Corp Sewing machine attachment for making monograms and other designs
US3490399A (en) * 1966-01-06 1970-01-20 Schmid Arthur Pattern displacement and adjustment device for stitching machines
US3592152A (en) * 1968-10-23 1971-07-13 Riccar Sewing Machine Co Ltd Attachment for embroidering initial letters, patterns and the like in a zigzag sewing machine
US3682118A (en) * 1970-07-08 1972-08-08 Bunsaku Taketomi Adapter device for stitching letters
US3706291A (en) * 1971-08-26 1972-12-19 Singer Co Incremental pattern control system for sewing machines
US4932341A (en) * 1989-05-08 1990-06-12 Moore Iii Edgar F Sewing apparatus
CN104630992A (zh) * 2015-02-09 2015-05-20 林元强 假眼机的连续送料机构

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Publication number Publication date
GB948572A (en) 1964-02-05
BE624018A (id)
AT245353B (de) 1966-02-25
DE1159746B (de) 1963-12-19
CH373944A (fr) 1963-12-15
NL283986A (id)
NL143637B (nl) 1974-10-15
ES281671A1 (es) 1963-01-16

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