US3326153A - Detector for shuttle - Google Patents

Detector for shuttle Download PDF

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Publication number
US3326153A
US3326153A US480615A US48061565A US3326153A US 3326153 A US3326153 A US 3326153A US 480615 A US480615 A US 480615A US 48061565 A US48061565 A US 48061565A US 3326153 A US3326153 A US 3326153A
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United States
Prior art keywords
shuttle
shuttles
thread
detector
pin means
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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
US480615A
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English (en)
Inventor
Hausle Ludwig
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.)
Saurer AG
Original Assignee
Adolph Saurer AG
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 Adolph Saurer AG filed Critical Adolph Saurer AG
Application granted granted Critical
Publication of US3326153A publication Critical patent/US3326153A/en
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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/08—Thread-tensioning arrangements
    • D05C11/14—Stop motions responsive to thread tension or breakage

Definitions

  • This invention relates to a detector or sensing means for shuttles of the type which reciprocate along an axis such as those utilized in embroidery machines for providing an indication or sign-a1 when the shuttle thread or back thread is either exhausted or broken.
  • Detectors for use with shuttles are known; however, these have usually required significant constructional modifications in the shuttle itself and/or to surrounding structure. In addition, they have not had the dual capacity of being able to detect either thread exhaustion or thread breakage.
  • US. Patent No. 2,127,- 182 issued to McCaleb et al, on Aug. 16, 1938, relates to an electrical detector for shuttle thread which requires significant constructional modifications and with the single capacity of detecting only thread exhaustion.
  • FIG. 1 is a front view of a dual shuttle installation with the shuttles and shuttle pin means therefor during upward travel and in an intermediate position between their limits of travel;
  • FIG. 2 is a view similar to FIG. 1 with the shuttles and shuttle pin means therefor during downward movement and in an intermediate position between their limits of travel with one of the shuttles being exhausted of thread.
  • shuttles 1 and 2 which are movable in a reciprocating manner in guides 7 and 8.
  • the shuttles are adapted to contain a supply of thread indicated by numerals 13 and 14 in the conventional manner. It is to be noted that the term thread is meant to be considered generically herein so as to include yarn or the like.
  • a shuttle pin means in the form of an upper member 12 having a pair of shuttle slides and 6 thereon and a lower member 18 having a pair of electrically insulated shuttle pins 3 and 4 thereon for cooperating with each of the shuttles 1 and 2, respectively, which will later be described.
  • the shuttle pin means need not be a single rigid unit, but it must be movable as a single unit in a reciprocating manner in order to move the shuttles disposed in guides 7 and 8.
  • the shuttle pin means are shown in a position while moving upwardly in the direction indicated by the arrow and in so doing engage the bottom of the shuttles via shuttle pins 3 and -4 in order to move the shuttles therewith as is conventional in the art. It is seen that the spacing between the shuttle pins 3 and 4 relative to the shuttle slides 5 and 6 is greater than the length of the shuttles so that at no time will both the shuttle slides and the shuttle pins engage the shuttles, the significance of which will become apparent later.
  • FIG. 2 the shuttles are shown descending after reaching the extent of their upward movement.
  • the shut- 3,326,153- Patented June 20, 1967 tle pin means are seen to be at a lower level than in FIG. 1 since it is the shuttle slide means that normally engage the shuttles for moving them downwardly. This is accomplished via shuttle s ides 5 and 6 if neither the shuttle thread is exhausted nor broken.
  • the shuttles do not rest upon the shuttle pins 3 and 4 during the downward phase of operation since they are suspended on the shuttle threads.
  • Initial disengagement of the shuttles from the shuttle pins occurs after the limit of their upward travel is reached during which the shuttle pin means begin to descend.
  • relative movement occurs between the shuttle pin means and the shuttles due to the suspending action of the shuttle threads upon the shuttles; however, the shuttle slides 5 and 6, upon the shuttle pin means commencing to descend, engage the shuttles and overcome the suspension of the shuttles and move the shuttles downwardly.
  • shuttle pin means Upon the shuttle pin means reaching the end of its downward travel, it begins to reverse direction to again move upwardly. During this interval, the shuttle slides 5 and 6 disengage the shuttles and in continuing upwardly cause the shuttle pins 3 and 4 to engage the shuttles and to move them upwardly once again.
  • the electrically insulated shuttle pins 3 and 4 are insulated from the rest of the machine except for the shuttles and are connected to an electrical conductor 9 having indicator means 10, a circuit breaker 11, and a DC. current source indicated by 17, and which is further provided with connections 19 and 20 to the shuttle guide assemblies.
  • the indicator means 10 has been shown to be an indicator light, any type of conventional indicator may be used such as an ammeter, and audible signal unit including a buzzer, bell or the like. It is also contemplated by this invention that the means 10 may be substituted by conventional means which would function to stop the machine. Although the electrical source is shown to be D.C., it may also be on AC. source as desired and which would perhaps be chosen in accordance with the particular indicator means 10 utilized.
  • the shuttle pin means 3 and 4, conductor 9, indicator means 10, circuit breaker 11 (when closed), source 17, connections 19 and 20 form in conjunction with the shuttles and the shuttle guide assemblies an electrical circuit with the branches (between elements 3, 1 and 7 and elements 4, 2 and 8) being in parallel.
  • circuit breaker 11 is provided which is suitably connected mechanically with the shuttle pin means as shown schematically by numeral 15 such that the contacts thereof will be open during the upward movement of the shuttle pin means and during the period of the upper dead position thereof and will be closed during the downward movement of the shuttle pin means. It is thus seen that the circuit can only be closed during the downward movement of the shuttle pin means and shuttles and only in the case if a shuttle thread is exhausted or broken so that the particular s'huttle touches one of the shuttle pins 3 or 4.
  • any conventional mechanical linkage or other means may be provided for proper synchronization with the shuttles and shuttle pin means. These may include lost motion means such as pin means, slot means, spring means, etc.
  • any conventional means utilized with circuit breakers for synchronizing mechanical motion with the 4 opening and closing of the circuit breaker contacts may be utilized.
  • insulated contacts could be placed in the shuttle guides for contact with the shuttles.
  • an embroidery shuttle assembly of a textile machine having a shuttle, said shuttle supplying thread, shuttle guide means for said shuttle, shuttle pin means reciprocating said shuttle in said shuttle guide means in a vertical direction during operation of the machine, the combination of electrical detector means incorporating indicating means, said detector means being capable of sensing either shuttle thread breakage or shuttle thread depletion thereby actuating said indicator means said detector means comprising an electrical circuit, said circuit including electric contact means on said shuttle pin means insulated from the rest of the machine and making contact with said shuttle.
  • said circuit includes said shuttle and said shuttle guide as conductive elements and circuit breaker means connected in series with said shuttle pin means, said circuit breaker means being opened during travel of the shuttle in the upward direction and closed during the travel of the shuttle pin means in the opposite direction.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US480615A 1964-08-25 1965-08-18 Detector for shuttle Expired - Lifetime US3326153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU733664 1964-08-25

Publications (1)

Publication Number Publication Date
US3326153A true US3326153A (en) 1967-06-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
US480615A Expired - Lifetime US3326153A (en) 1964-08-25 1965-08-18 Detector for shuttle

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US (1) US3326153A (de)
CH (1) CH448699A (de)
DE (1) DE1295341B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189506A1 (de) * 1985-01-19 1986-08-06 Friedrich Wietzke GmbH Vielnadelsteppautomat
EP1013814A1 (de) * 1998-12-21 2000-06-28 Saurer Sticksysteme Ag Schiffchenfaden-Überwachung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH708828A1 (de) 2013-11-08 2015-05-15 Lässer Ag Vorrichtung zur Überwachung des Schifflifadens auf einer Gross- oder Klein-Schifflistickmaschine.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2127182A (en) * 1936-12-21 1938-08-16 Kenneth V Mccaleb Electric filling feeler mechanism for looms
US2647482A (en) * 1949-12-20 1953-08-04 Edward P Levine Bobbin signal
US2984265A (en) * 1959-05-05 1961-05-16 Roland A Dupre Weft stop motion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2127182A (en) * 1936-12-21 1938-08-16 Kenneth V Mccaleb Electric filling feeler mechanism for looms
US2647482A (en) * 1949-12-20 1953-08-04 Edward P Levine Bobbin signal
US2984265A (en) * 1959-05-05 1961-05-16 Roland A Dupre Weft stop motion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189506A1 (de) * 1985-01-19 1986-08-06 Friedrich Wietzke GmbH Vielnadelsteppautomat
EP1013814A1 (de) * 1998-12-21 2000-06-28 Saurer Sticksysteme Ag Schiffchenfaden-Überwachung

Also Published As

Publication number Publication date
DE1295341B (de) 1969-05-14
CH448699A (de) 1967-12-15

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