US3895653A - Card reverting and racing apparatus in a dobby machine - Google Patents

Card reverting and racing apparatus in a dobby machine Download PDF

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Publication number
US3895653A
US3895653A US486937A US48693774A US3895653A US 3895653 A US3895653 A US 3895653A US 486937 A US486937 A US 486937A US 48693774 A US48693774 A US 48693774A US 3895653 A US3895653 A US 3895653A
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US
United States
Prior art keywords
slide
shaft
card
reverting
holes
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
US486937A
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English (en)
Inventor
Akira Koyama
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.)
Yamada Dobby Co Ltd
Original Assignee
Yamada Dobby Co Ltd
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 Yamada Dobby Co Ltd filed Critical Yamada Dobby Co Ltd
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Publication of US3895653A publication Critical patent/US3895653A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/22—Needles; Needle boxes; Needle boards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C2700/00—Shedding mechanisms
    • D03C2700/01—Shedding mechanisms using heald frames
    • D03C2700/0127—Programme-controlled heald frame movement
    • D03C2700/0177—Devices for levelling the heald frames; Coupling and uncoupling the drive for the heald frames; Devices for holding the shed open

Definitions

  • a card reverting and racing apparatus includes a lever which is operable to be moved into a position to effect reversing of a card cylinder at predetermined angular amount so that a pick finding action may be effected and to be moved into another position to provide for free rotation of the card cylinder so that charging of the card cylinder may be effected
  • the provision of one lever for effecting both of the above mentioned operations results in a compact construction and readily operable arrangement 13 Claims, 6 Drawing Figures PATENTED JUL 2 2 an sum 3 12 10 9s 7,, 9 H95 15 am 13 I we 13 W fiz 13a max, 0
  • the present invention relates to a card reverting and racing apparatus as utilized in a dobby machine. and more particularly to an apparatus which can easily perform secure reverting action and free racing of a card cylinder in a combined constructional arrangement.
  • an object of the present invention is to overcome the disadvantages of known prior art arrangements and to provide an apparatus'for effecting suitable pick finding action and easy racing in a dobby machine wherein the apparatus is combined in a compact structure comprising a mechanism for reversibly moving a card cylinder by half a pitch of the card and a mechanism for racing the card, and wherein the change in operation can be'readily effected by means of moving a single lever. that is. by first moving the lever for the reverting action and by then further mov ing the same lever forthe racing action.
  • Another object of the present invention is to provide a slide movable by setting a lever at a first step pulling position, whereby a card cylinder can be reverted a prescribed amount for reverse shedding action so as to facilitate a suitable pick finding operation.
  • a further object of'the present invention is to provide for moving a lever to a second step pulling position so that a slide is fully rotated together with a shaft and a card cylinder is thereby rotated so as to facilitate charging of the card.
  • Yet a further object of the present invention is to provide for reverting action and free racing ofa card cylinder which can be selectively and readily effected by operation of a single lever in acompact and simple structure as one body.
  • a card reverting and racing apparatus as utilized in ,connection with a card cylinder on a Dobby machine includes a shaft operatively connected to the card cylinder and a clutch sleeverotatably mounted on the shaft.
  • a plurality of axial holes are provided in the clutch sleeve and a drive shaft is opcratively connected to the clutch sleeve for rotating the latter.
  • a slide is rotatably connected to the shaft and longitudinally slidable on the shaft and clutch pins are provided on the slide. The slide has a first longitudinal position in which the pins are inserted in some of the holes in the clutch sleeve.
  • the slide also has a second longitudinal position in which the pins are withdrawn from the holes and the slide is rotatable relative to the clutch sleeve a limited amount to rotational displace the pins the aforementioned limited amount so that the pins may be subsequently inserted in different holes in the clutch sleeve.
  • the slide further has .a third longitudinal portion wherein the pins are free and clear of the clutch sleeve so thatthe slide and shaft are freely rotatable.
  • FIG. 1 is a sectional view of an apparatus according to the present invention .wherein the clutch pin is shown inserted in the clutch sleeve and the lever is shown in a vertical position.
  • FIG. 2 is aplan view of the plate for setting the position of the lever shown in FIG. 1.
  • FIG. 3 is a perspective view of the clutch sleeve.
  • FIG. 4 is a sectional view illustrating the attachment of the lever to the slide.
  • FIG. 5 is a sectional view similar to FIG. 1 illustrating an operable position in which the shaft can be rotated by half a pitch of a card at a first step pulling action of the lever.
  • FIG. 6 is a sectional view similar to FIG. 1 illustrating another operable position in which the shaft is in a racing position by disengagement of the clutch at a second step pulling action of the lever.
  • a gear I mounted on a drive shaft meshes with a gear 3 rotatably mounted on a shaft 2.
  • the gear 3 has a stem portion rotatably mounted on a base 5 through a bearing 4.
  • a clutch sleeve 6 On the circumference of the left side of the stem portion of the gear 3 there is secured a clutch sleeve 6 which can be rotated as the drive shaft rotates.
  • the clutch sleeve 6 comprises a channel 621 having channel walls 6a, 6 0'. Located within the channel 621 are a pair of holes 612, 6b arranged diametrically on opposite sides of the center of clutch sleeve 6. A similar pair of holes 6c. 6c are also arranged diametrically on opposite sides of the center.
  • a slide 7 is arranged to the left side of the clutch sleeve 6 in a manner such that the slide 7 is slidable relative tothe shaft 2 through a spline 2a.
  • two opposed clutch pins 8 which are selectively insertable in the holes 612. 6b or 6r, 6:" of the clutch sleeve 6.
  • teeth 71 On the outer circumference of the slide 7 there are arranged teeth 71: which mesh with teeth 91: arranged on the inner circumference of a cover 9.
  • a lever I has a ring portion which encircles the outer circumference of the slide 7 and a handle lllu is provided below the ring portion ll). Within the ring portion of the lever 10 there are mounted slip elements II (FIG. 4) which slide in a groove of the slide 7 so that the lever 10 does not rotate in spite of the rotation of the slide 7. In addition the upper portion of the lever I0 is pivoted to a housing I2 connected with the cover 9, With this construction, when the handle I041 is pivoted towards the center of the shaft 2. the slide 7 slides longitudinally along the shaft 2.
  • a stop I3 On the left end of the shaft 2 there is mounted a stop I3 which is provided with a first step portion 13a and a second step portion 13b so as to hold the slide 7 at a first sliding position and a second position respectively by contact between a pin I411 fixed to a knobsleeve 14 which is slidably mounted on the shaft 2 and the first step portion I31: or the second portion 13b.
  • the slide 7 is urged towards the clutch sleeve 6 by the action of a spring 15 arranged between the knob sleeve I4 and the slide 7.
  • a plate 16 is attached to the base 5. As shown in FIG. 2. at one end of the plate [6 there is provided a protruding portion 16:: at the center thereof. two indented portions 16h, I6r' at both sides of 16a. and two protruding I611. 160 at the outside of 16!), I60.
  • the handle [0:1 is movable from the indented portion 16!). passing over the protruding portion 161:. to the indented portion I60. whereby in so doing. the slide 7 is rotated by 22.5 in a radial plane of the shaft 2, such rotation corresponding to a one-half pitch of a card.
  • a card cylinder 18 operatively connected through an Oldham's coupling 17.
  • PHASE SHIFTING OPERATION The card cylinder 18 is forwardly or reversely rotated by one-half pitch of the card for suitable pick finding.
  • the handle 10a of the lever 10 shown in FIG. I is located in the indented portion 16b of the plate 16 as shown in FIG. 2.
  • the pin 14a of the knob I4 is located in the first step portion 130 of the stop 13, so that the heads of the clutch pins 8 attached to the slide 7 are disposed in holes 6r. 6c. of the clutch sleeve 6 and the slide 7 is held in its longitudinal position by the biasing action of the spring 15.
  • the card cylinder 18 can be rotated by half a pitch of the card in a forward and reverse direction so as to suitably perform the pick finding action.
  • the lever 10 is set at a position of the plate 16 for shifting by half a pitch whereby the card cylinder can be readily rotated forwards or backwards so as to perform a suitable pick finding action.
  • a card reverting and racing apparatus as utilized in connection with a card cylinder on a dobby machine, the combination comprising a shaft operatively connected to said card cylinder, a clutch sleeve rotatably mounted on said shaft. means defining a plurality of axial holes in said clutch sleeve, a drive shaft means operatively connected to said clutch sleeve for rotating the latter, a slide rotatably connected to said shaft and longitudinally slidable on said shaft. pins on said slide.
  • lever means operably connected to said slide and operable to longitudinally slide said slide on said shaft upon pivotal movement of said lever means.
  • said slide having a first longitudinal position in which said pins are inserted in some of said holes in said clutch sleeve.
  • said slide having a second longitudinal position in which said pins are withdrawn from said holes and said slide is rotatable relative to said clutch sleeve a limited amount to rotational displace said limited amount so that the pins may be subsequently inserted in different holes in said clutch sleeve, said slide having a third longitudinal position wherein said pins are free and clear of said clutch sleeve so that the slide and shaft are freely rotatable, said lever means being operable to slide said slide to said first, second. and third longitudinal positions.
  • a card reverting and racing apparatus as utilized in connection with a card cylinder on a dobby machine.
  • the combination comprising a shaft operatively connected to said card cylinder, a clutch sleeve rotatably mounted on said shaft, a drive shaft means operatively connected to said clutch sleeve for rotating the latter, said clutch sleeve having a transverse channel and means defining axial holes located at different angular positions.
  • said slide being slidable into first, sec 0nd, and third operative positions by said lever means whereby in said first operative position said gear teeth on said slide and said gear teeth on said cover are disengaged and in said second and third operative positions said gear teeth are engaged.
  • clutch pins carried in said slide and insertable or withdrawable from said holes in said clutch sleeve, stop means mounted on said shaft and being adjustable between a first and a second position to selectively predetermine the second and third longitudinal positions of said slide, said clutch pins being inserted in said holes in said clutch sleeve when said slide is in said first operative position, said clutch pins being withdrawn from said holes in said clutch sleeve when said slide is in said second operative position whereby the shaft may be rotated by rotating the slide a predetermined angular amount corresponding to the difference in the angular position of said holes.
  • the ends of said clutch pins being disposed in said transverse channel when said slide is in said second operative position.
  • the ends of said clutch pins being withdrawn from said channel when said slide is in said third operative position whereby in the latter position.
  • the sleeve and shaft may be freely rotated independently of said drive shaft means.
  • a card reverting and racing apparatus includes a stop member fixed to one end of said shaft and having a first step part and a second step part.
  • said stop means further comprising a sleeve slidably mounted on the end of said shaft and having a stop element adaptable to engage either said first step part or said second step part to predetermine said second and third longitudinal positions of said slide.
  • said stop sleeve being adjustable to either one of two positions wherein in one position. said first step part engages said stop element and in another position said second step part engages said stop element.
  • a card reverting and racing apparatus further comprising a knob fixed to said sleeve, and biasing means between said knob and said slide for biasing said slide in said first operative position.
  • a card reverting and racing apparatus wherein a reverting action of said cylinder is effected by disposing said stop element to engage said first step part of said stop member. moving said slide from said first to said second operative position, rotating said slide relative to said clutch sleeve. and returning said slide to said first operative position as said axial pins are inserted in different holes.
  • a card reverting and racing apparatus wherein said racing action of said card cylinder is effected by disposing said stop element to engage said second step part of said stop member. moving said slide from said second operative position to said third operative position to dispose said axial pins free and clear of said clutch sleeve. whereby said slide and said shaft are freely rotatable.
  • a card reverting and racing apparatus according to claim 3 wherein said slide engages said sleeve to predetermine the second and third operative positions of said slide.
  • a card reverting and racing apparatus wherein said transverse channel is disposed in one side face of said clutch sleeve. said axial holes being arranged in said channel, a pair of said holes being located along one diametrical line. another pair of said holes being located along another diametrical line disposed at a different angle relative to the first said diametrical line.
  • a card reverting and racing apparatus including a spline between said slide and said shaft, said teeth on said slide and said teeth on said cover being engaged when said slide is longitudinally slid from said second to said third position.
  • a card reverting and racing apparatus including a base for the card reverting and racing apparatus, said cover being rotatably mounted relative to said base.
  • a card reverting and racing apparatus includes a housing, said lever means comprising a lever having an upper portion pivotally connected to said housing and pivotal about an axis extending generally transversely of the axis of said shaft and an operable connection between an intermediate portion of said lever and said slide, said operable connection providing for sliding of said slide on said shaft upon pivotal movement of said lever while providing for rotational movement of said slide relative to said lever.
  • said lower portion of said lever constituting a handle for effecting sliding movement of said slide between said three operative portions and for rotating said slide from one position where said pins are inserted in one set of holes in said clutch sleeve and another position wherein said pins are inserted in another set of holes diametrically spaced from said first set of holes.
  • a card reverting and racing apparatus including means secured to said cover

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
US486937A 1973-07-21 1974-07-09 Card reverting and racing apparatus in a dobby machine Expired - Lifetime US3895653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48081318A JPS5031163A (enrdf_load_stackoverflow) 1973-07-21 1973-07-21

Publications (1)

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US3895653A true US3895653A (en) 1975-07-22

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US486937A Expired - Lifetime US3895653A (en) 1973-07-21 1974-07-09 Card reverting and racing apparatus in a dobby machine

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US (1) US3895653A (enrdf_load_stackoverflow)
JP (1) JPS5031163A (enrdf_load_stackoverflow)
CH (1) CH580181A5 (enrdf_load_stackoverflow)
FR (1) FR2237999B1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067364A (en) * 1974-12-28 1978-01-10 Yamada Dobby Co., Ltd. Apparatus for reversing and racing a card in a dobby machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428693A1 (fr) * 1978-06-16 1980-01-11 Staubli Sa Ets Perfectionnements aux dispositifs de lisage pour ratieres ou autres mecaniques de tissage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318341A (en) * 1965-07-28 1967-05-09 Nollet Georges Loom reversing means
US3407848A (en) * 1966-02-24 1968-10-29 Mecaniques Verdol Soc D Device for rotating the pattern cylinder of double-lift dobbies independently of itsnormal drive
US3831637A (en) * 1972-01-10 1974-08-27 Alsacienne Constr Meca Device for controlling the heddles of the harness of a loom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318341A (en) * 1965-07-28 1967-05-09 Nollet Georges Loom reversing means
US3407848A (en) * 1966-02-24 1968-10-29 Mecaniques Verdol Soc D Device for rotating the pattern cylinder of double-lift dobbies independently of itsnormal drive
US3831637A (en) * 1972-01-10 1974-08-27 Alsacienne Constr Meca Device for controlling the heddles of the harness of a loom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067364A (en) * 1974-12-28 1978-01-10 Yamada Dobby Co., Ltd. Apparatus for reversing and racing a card in a dobby machine

Also Published As

Publication number Publication date
CH580181A5 (enrdf_load_stackoverflow) 1976-09-30
FR2237999A1 (enrdf_load_stackoverflow) 1975-02-14
JPS5031163A (enrdf_load_stackoverflow) 1975-03-27
FR2237999B1 (enrdf_load_stackoverflow) 1977-10-07

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