US3246617A - Frame stabilizer for embroidery machines - Google Patents

Frame stabilizer for embroidery machines Download PDF

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Publication number
US3246617A
US3246617A US426731A US42673165A US3246617A US 3246617 A US3246617 A US 3246617A US 426731 A US426731 A US 426731A US 42673165 A US42673165 A US 42673165A US 3246617 A US3246617 A US 3246617A
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United States
Prior art keywords
frame
cylinder
operative
stabilizer
machine
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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
US426731A
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English (en)
Inventor
Alfred G Biberfeld
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.)
I A S BICOR Corp
Original Assignee
I A S BICOR CORP
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Publication date
Application filed by I A S BICOR CORP filed Critical I A S BICOR CORP
Priority to US426731A priority Critical patent/US3246617A/en
Priority to CH56066A priority patent/CH467890A/de
Priority to DE19661685128 priority patent/DE1685128A1/de
Application granted granted Critical
Publication of US3246617A publication Critical patent/US3246617A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
    • D05C9/08—Appliances for holding or feeding the base fabric in embroidering machines in machines with horizontal needles
    • D05C9/10—Work holders or carriers
    • D05C9/14—Suspension or balancing arrangements therefor

Definitions

  • This invention relates to embroidery machine frame stabilizers, and is particularly, although not exclusively, directed to Schiflii embroidery machines having a structural frame extending longitudinally of the machine and movable with the operative embroidery movements of the apparatus.
  • Machines of the above-mentioned category are always faced with the danger of excessive frame oscillations with corresponding overmovements and consequent overstitching in the region of the middle of the frame. This results in distorted patterns of the embroidered Work, a condition which becomes progressively worse with increasing operative machine speeds. With suitable frameoscillating controls it is thus necessary to limit the speed of operation to a point at which such excessive oscillatory movements do not occur, thereby correspondingly Limiting the production capacity of the machine. Attempts have been made to control such undesirable oscillations, but these have had limited effectiveness in that the various expedients employed are able to effect only partial controls, especially at high speeds, excessive oscillations not being eliminated but merely reduced.
  • Another object of this invention is to provide a constant yieldable support for the frame, thereby not only to cause an operative dampening effect on any oscillating forces that may be present, but also to provide a safety cushion in the event of a breakage of the machines coil spring or steel hands.
  • FIG. 1 is a fragmentary front elevational view of an embroidery machine embodying my invention, the yarn spools and other conventional feeding and operative mechanisms being omitted, fragments being broken away for clarity, other conventional parts being semischematically shown, the bowed dot-dash line indicating a theoretical vertically displaced position of the truss constituting part of the machine frame.
  • FIG. 2 is an enlarged rear elevational view of the medial portion of the apparatus of FIG. 1 showing the truss, top center beam and stabilizer device.
  • FIG. 3 is an enlarged section of FIG. 2 taken along line 3-3.
  • FIG. 4 is an enlarged vertical cross-section of one of the restricted-orifice valves used with the hydraulic restraining member shown in FIG. 3.
  • FIG. 5 is a semi-schematic vertical section of the stabilizer device adapted for combinative use with an embroidery machine, showing by dot-dash lines two opposite positions of the hydraulic piston rod.
  • FIG. 6 is a view of the device of FIG. 4 in one of its operative positions, the device being shown operatively attached to the frame and stationary beam.
  • FIG. 7 is a view like FIG. 5, but showing the device in another operative position.
  • the embroidery machine generally designated 9 contains the stationary top center beam 10, the movable frame 11 containing the beam 12 which extends longitudinally of the machine and is structurally connected to said frame in known manner, the particular beam illustrated being a truss having the upper bow member 13 and other structural elements known to those skilled in the art.
  • the said stationary beam 10 is of conventional construct-ion and is supported by the posts 5 and 6 and attached to the lateral stationary structural members 7 and 8 in conventional manner.
  • the said machine operatively supports the rollers 14 and 15 on which is mounted the upper fabric sheet 16 being embroidered, and the rollers 17 and 18 on which is mounted the lower fabric sheet 19 also being embroidered.
  • the entire frame 11 and the rollably supported sheets 16 and 19 are movable vertically and longitudinally to permit embroidering operations to be performed by needles and shuttles not shown, it being deemed unnecessary for an understanding of the present invention to illustrate in detail the various operating members of the apparatus since they are known to those skilled in the art.
  • said frame 11 is operatively connected to the respective horizontal and vertical toothed racks 2t and 21 in opera tive engagement with the respective gears 22 and 23 whose movements are controlled by a pattern mechanism, like a jacquard apparatus, contained within the casing 24.
  • the rapid horizontal and vertical operative movements of the entire frame 11 and associated parts are thus effected by the control apparatus in casing 24--the vertical movements tending to cause the vertical oscillations of the beam 12, the dotdash bowed line 1301 showing, for illustrative purposes, a theoretical upper limiting position of the how 13 during such an uncontrolled oscillatory movemeat.
  • the stabilizing device generally referred to by the reference numeral 25, the said movable beam 12 and the said stationary beam that constitutes my novel apparatus for restraining undesirable oscillations of the massive frame 11 and its beam 12 without interfering with the operative embroidering movements of the machine.
  • the said stabilizing device is a yieldable restraining member pivotally mounted on the said stationary beam 10 and pivotally connected to the movable beam 12 and rockable therewith.
  • the particular form illustrated is an hydraulic dampening apparatus having a vertical cylinder 26, a plunger or piston 27 and, among other members, a piston rod 28 operatively movable through a conventional packing gland 29 at the top of the cylinder, the top of the piston rod having a clevis 30 pivotally connected to the pin 31 attached to the bracket 32 clamped on to the said bow 13 of the truss 12.
  • Attached to the bottom of the cylinder 26 is the clevis 30a pivotally connected to the pin 33 extending from the mounting 34 aflixed to the bracket 35 attached to and supported by the said top center beam 10.
  • the piston rod 28 moves between the dot-dash positions 28a and 2811 during the operative rocking movement of the cylinder 26, whereby the clevis 30 at the top of the piston rod moves along the diagonal path represented by the dot-dash line 36 as the piston rod operatively moves up and down during the operative vertical movement of the center point 13m of the truss how 13.
  • FIGS. 3 and 5 there are two pipes 37 and 38 connected to the respective upper and lower portions 39 and 40 of the cylinder 26, said pipes 37 and 38 being connected to the conventional flow control valves 41 and 42, respectively, to .be hereinbelow described.
  • a pipe 43 connects said valves, and is in communication with the reservoir 44 open to the atmosphere.
  • the said valves 41 and 42 have the respective control knobs 45 and 46 to regulate their respective effective orifice areas.
  • the cylinder 26 and the reservoir 44 contain preferably oil of suitable consistency therein to permit proper coaction between the said valves 41, 42 and the piston 27.
  • the valve 42 which is identical to valve 41, permits a flow of said fluid in the direction of arrow A (FIGS. 4, 5 and 6), the fluid entering at port 47 and flowing through passageways 48, 49, 50, 51, 52 and out through port 53 to enter the valve 41 from which it flows through pipe 37 into the top of the cylinder 26.
  • the needle valve 54 is disposed within the said passageway 51 which constitutes the restricted orifice of the valve, the position of the needle valve, as regulated by turning the knob 46 in known manner, determining the rate of flow of the fluid from said port 47 to port 53.
  • the valve 41 permits a similar regulated restricted return flow from the upper part of the cylinder 26 downwardly from pipe 37 through pipe 43 to port 53 of valve 42 in the direction of arrow B.
  • the return flow from port 53 of valve 42 to port 47 occurs through passageway 52 past the poppet valve 55 against the action of the light spring 56-the flow continuing to the bottom of the cylinder 26.
  • the setting of the needles of each of said valves 41 and 42 is determined for the particular characteristics of the machine to which this stabilizer is applied, so as to permit the operative movement of the fluid through pipes 37 and 38 under the action of the piston 27 for the normal operative movements of the beam 12.
  • the embodiment of my invention illustrated is readily adaptable for use with embroidery machines of the above described category without any need to mutilate or alter the form, construction or arrangement of the machine. All that is required, for either new or old machines, is to pivotally clamp the top of the piston 27 to the said bow member 13 of the frame beam 12 and to pivotally attach the bottom of the cylinder 26 to the stationary beam 10 in the manner hereinabove described. With such a simple assembly operation the frame 11 is thus readily provided with the stabilizing device of my invention. It is especially noteworthy that the adjustment of the stabilizing device to a machine can be effected, for any selected speed of operation, simply by turning the knobs 45 and 46 to positions at which undesirable oscillatory flexing of the frames beam 10 is eliminated through the dampening effect above described.
  • an embroidery machine of the class having a stationary beam and a fabric-carrying frame operatively movable in response to pattern-controlling actuating means, the combination of said stationary beam, said movable frame and a frame stabilizer, said stabilizer having a restraining member connected at spaced portions thereof to said stationary beam and said movable frame, respectively, whereby said member will be movably actuated by the operative movements of said frame, said member having yieldable means exertin frame.
  • an embroidery machine of the class having a stationary beam and a fabric-carrying frame operatively movable in response to pattern-controlling actuating means, the combination of said stationary beam, said movable frame and a frame stabilizer, said stabilizer having a restraining member pivotally connected at spaced portions thereof to said stationary beam and said movable frame, respectively, whereby said member will be rockably actuated by the operative movements of said frame, said member having yieldable means continuously exertin g a restraining effort on said frame.
  • an embroidery machine of the class having a stationary beam and a fabric-carrying frame having an upper beam spaced above said stationary beam and operatively movble horizontally and vertically in response to patterncontrolling actuating means, the combination of said stationary beam, said movable frame and a frame stabilizer, said stabilizer having a restraining member with an upper portion pivotally connected to said upper beam and with a lower portion pivotally connected to said stationary beam, whereby said member will be rockably actuated by the operative movements of said frame, said member having yieldable means exerting a restraining effort on said upper beam of said frame.
  • said restraining member being connected to said stationary beam and said frame in the region of the middle portion of the machine.
  • the said upper beam of said frame comprising a truss having an upper bow member extending substantially along the longitudinal extent of the machine, said upper portion of said restraining member being connected to the medial portion of said bow member.
  • an embroidery machine of the class having a stationary beam and a fabric-carrying frame having an upper beam spaced above said stationary beam and operatively movble horizontally and vertically in response to patterncontrolling actuating means, the combination of said stationary beam, said movable frame and a frame stabilizer, said stabilizer comprising a fluid-containing cylinder connected to said stationary beam, a piston operatively disposed within said cylinder, 2.
  • said cylinder having a bottom portion pivotally conneced to said stationary beam, said piston rod having an upper portion pivotally attached to said upper beam, whereby said cylinder and said piston rod will be rockably actuated by the operative movements of said frame.
  • said cylinder having a bottom portion pivotally connected to said stationary beam, said cylinder being normally vertically disposed, said piston rod having an upper portion pivotally attached to the medial portion of said upper beam, whereby said cylinder a restraining effort on said and said piston rod will be rockably actuated by the operative movements of said frame between opposite limiting inclined positions.
  • said cylinder having a bottom portion pivotally connected to said stationary beam, said cylinder being normally vertically disposed, said piston rod having an upper portion pivotally attached to the medial portion of said upper beam, whereby said cylinder and said piston rod will be rockably actuated by the operative movements of said frame, and manually adjustable fluid-restricting valves connected to said fluid-conducting means for adjustably restricting the operative flow of said fluid between the said opposite end portions of said cylinder under the operative movements of said piston, whereby the fluid resistance to the vertical movements of said frame may be selectively varied.
  • said cylinder having a bottom portion with a clevis affixed thereto, said stationary beam having a bracket carrying a pin pivotally connected to said clevis and supporting said cylinder, said cylinder being normally vertically disposed, said piston rod having at the upper portion thereof a clevis, a pin pivotally connected to said latter clevis and connected to the medial portion of said upper beam of said frame, whereby said cylinder and said piston rod will be rockably actuated by the operative movements of said frame between opposite limiting inclined 0 positions, and manually adjustable fluid restricting valves connected to said fluid-conducting means for adjustably restricting the operative flow of said fluid between the said opposite end portions of said cylinder under the operative 40 movements of said piston, whereby the fluid resistance to the vertical movements of said frame may be selectively varied.
  • an embroidery machine of the class having a fabric-carrying frame operatively movable in response to pattern-controlling actuating means and a stationary structural member
  • said movable frame, said stationary member, a frame stabilizer and a connecting member associated with and operatively movable with said frame said stabilizer having a restraining member connected at spaced portions thereof to said stationary member and said connecting member, respectively, where by said restraining member will be movably actuated by the operative movements of said frame, said rsetraining member having yieldable means exerting a restraining effort on said frame.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US426731A 1965-01-21 1965-01-21 Frame stabilizer for embroidery machines Expired - Lifetime US3246617A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US426731A US3246617A (en) 1965-01-21 1965-01-21 Frame stabilizer for embroidery machines
CH56066A CH467890A (de) 1965-01-21 1966-01-17 Stickmaschine
DE19661685128 DE1685128A1 (de) 1965-01-21 1966-01-20 Strickmaschine

Applications Claiming Priority (1)

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US426731A US3246617A (en) 1965-01-21 1965-01-21 Frame stabilizer for embroidery machines

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US3246617A true US3246617A (en) 1966-04-19

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US426731A Expired - Lifetime US3246617A (en) 1965-01-21 1965-01-21 Frame stabilizer for embroidery machines

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US (1) US3246617A (de)
CH (1) CH467890A (de)
DE (1) DE1685128A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333559A (en) * 1965-01-19 1967-08-01 Benz Adolph Ribbon pleating and heat pressing device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604953A (en) * 1946-08-16 1952-07-29 Firestone Tire & Rubber Co Damping device for rotative wing aircraft
US2883950A (en) * 1954-10-15 1959-04-28 Benninger Ag Maschf Embroidery machine
US3030100A (en) * 1961-04-21 1962-04-17 Wagner William Hydraulic shock absorbers
US3072083A (en) * 1960-03-29 1963-01-08 Conrad Erich Henry Schiffli type embroidery machine
US3176801A (en) * 1962-10-12 1965-04-06 Northrop Corp Precision motion control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604953A (en) * 1946-08-16 1952-07-29 Firestone Tire & Rubber Co Damping device for rotative wing aircraft
US2883950A (en) * 1954-10-15 1959-04-28 Benninger Ag Maschf Embroidery machine
US3072083A (en) * 1960-03-29 1963-01-08 Conrad Erich Henry Schiffli type embroidery machine
US3030100A (en) * 1961-04-21 1962-04-17 Wagner William Hydraulic shock absorbers
US3176801A (en) * 1962-10-12 1965-04-06 Northrop Corp Precision motion control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333559A (en) * 1965-01-19 1967-08-01 Benz Adolph Ribbon pleating and heat pressing device

Also Published As

Publication number Publication date
DE1685128A1 (de) 1971-05-13
CH467890A (de) 1969-01-31

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