US3854506A - Gripper shuttle - Google Patents

Gripper shuttle Download PDF

Info

Publication number
US3854506A
US3854506A US00363151A US36315173A US3854506A US 3854506 A US3854506 A US 3854506A US 00363151 A US00363151 A US 00363151A US 36315173 A US36315173 A US 36315173A US 3854506 A US3854506 A US 3854506A
Authority
US
United States
Prior art keywords
housing
arms
shuttle
partition
gripper
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
US00363151A
Other languages
English (en)
Inventor
E Pfarrwaller
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.)
Sulzer AG
Original Assignee
Sulzer 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 Sulzer AG filed Critical Sulzer AG
Application granted granted Critical
Publication of US3854506A publication Critical patent/US3854506A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J5/00—Shuttles
    • D03J5/06—Dummy shuttles; Gripper shuttles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/24—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick by gripper or dummy shuttle

Definitions

  • the usual procedure for assembly of the shuttle is for the gripper clamp to be introduced, with the yoke at the front, into the shuttle housing from the rear and to be secured to the shuttle housing, and possibly to the nose as well, by welding or riveting or in some other form.
  • the front end of the shuttle housing and the yoke of the gripper clamp are welded together electronically to the nose simultaneously in a single pass.
  • the invention provides a shuttle made up of a housing and a gripper clamp mounted within the housing with a web-like partition i.e., a stay-like longitudinal partition extending within the housing over at least some of the length of the housing.
  • This partition greatly stiffens and strengthens the shuttle housing to better deal with the stresses occurring in operation, particularly during retardation, without having any disadvantages as compared with the prior art.
  • the partition is disposed in a gap between the two arms.
  • the partition is preferably integrally formed with the shuttle housing.
  • the shuttle housing is in known manner made of a tough impact-resistant plastics, e.g., polyethylene or tetrafluoroethylene while the gripper clamp and a nose at one end of the clamp are made of steel.
  • the gripper clamp and the nose can, with advantage, form a single unit. This construction helps to retain all the advantages of the known plastics shuttle while increasing the useful life of the shuttle considerably.
  • one or both of the spring 5 arms of the clamp are provided with a thickened part which is located to abut the partition when the arms are in a clamping position.
  • the thickened part serves to positively locate the jaws at the ends of the arms to ensure a constant position of the jaws and, thus, facilitate yarn transfer after opening of the clamp.
  • FIG. 4 illustrates a view of the gripper clamp and shuttle nose of the invention in the same position as FIG. 1;
  • a gripper or spring clamp comprises two spring arms 1, 1' which by their spring force press together clamping jaws 2, 2' at their rear free ends so that the jaws 2, 2' can retain a weft yarn end 3 clamped therebetween.
  • the front ends of the arms 1, l are rigidly interconnected by a yoke 4.
  • This yoke 4 is formed with an aperture 5 which, as shown in FIGS. 1 and 2, serves for the rigid securement of the yoke 4 to a shuttle housing 6 at a place 7.
  • a shuttle nose 8 is positioned at the front end of the yoke 5 and can either be integral therewith or connected thereto, e.g., by electron welding or in some other way.
  • the housing 6 is formed at the rear open end with a slit-like recess 11, 11 in each wide side walI 10, into which a yarn feeder introduces the weft yarn end when the jaws 2, 2 are open to transfer such end to the gripper clamp in the manner hereinbefore described.
  • the walls 10, 10 are formed at some distance from the rear end with two passages 12, 12' through which a wedgeshaped or conical gripper opener (not shown) is introduced to spread the two arms 1, 1' of the spring clamp apart from one another and open the gripper.
  • a wedgeshaped or conical gripper opener (not shown) is introduced to spread the two arms 1, 1' of the spring clamp apart from one another and open the gripper.
  • Another pair of thickened parts 14, 14 is disposed on the arms 1, 1' near the recess 11 to cooperate with a gripper opener (not shown) on the catching side of the weaving machine. This latter opener operates after picking.
  • a web-like i.e., stay-like longitudinal partition comprising two parts 15, 15a extends inside the housing 6, between the wide side walls l0, 10 disposed on either side of the gripper clamp, over the whole length of the gap between the two sprung arms 1, l'.
  • the partition 15, 15a leaves sufficient clearance on either side to enable the open gripper clamp to be introduced from the front end of the shuttle during assembly thereof without impairing the free movement of the sprung arms 1, 1 in operation. That is, the partition 15, 15a is spaced from each opposed wall of the housing 6 to permit passage of each jaw 2, 2'.
  • the shuttle housing 6 has the shape of a smooth section tube which can be produced by extrusion or casting (preferably as a pressure casting) or by drawing or in some other way and which can be made of metal or plastics.
  • the web-like partition 15, 15a can be formed either simultaneously with the tubular member during production of the tube or subsequently, in which case the partition parts 15, 15a can be secured to the walls 10, 10 by screwing or riveting or sticking or welding, provided that the connection is a rigid one.
  • extra machining is necessary to ensure a smooth flush transition in the nose portion between the nose surface and the surface of the housing 6.
  • the rear open end of the housing 6 where the picking striker strikes the housing 6 when the shuttle is shot for picking has flangelike thickened parts 16, 16' provided in a known manner to form a partial closure outside the region of the recesses 11, 11 of the rear apertures in the housing 6.
  • corresponding thickened parts can be provided on the part instead of on the arms 1, 1'.
  • the thickened parts can be provided in that part of the arms 1, l which is to the right of the passage 12 in FIG. 5, so that the thickened parts cooperate with the wall part 15.
  • a gripper shuttle for picking weft yarns in a weaving machine comprising a housing, a gripper clamp mounted in said housing and having a pair of spring biased arms for gripping a weft yarn, and a stay-like longitudinal partition within said housing between said arms for reinforcing said housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US00363151A 1972-05-26 1973-05-23 Gripper shuttle Expired - Lifetime US3854506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH781472A CH552092A (de) 1972-05-26 1972-05-26 Greiferschuetzen fuer den eintrag von schussfaeden bei webmaschinen.

Publications (1)

Publication Number Publication Date
US3854506A true US3854506A (en) 1974-12-17

Family

ID=4330870

Family Applications (1)

Application Number Title Priority Date Filing Date
US00363151A Expired - Lifetime US3854506A (en) 1972-05-26 1973-05-23 Gripper shuttle

Country Status (13)

Country Link
US (1) US3854506A (lt)
JP (1) JPS5138834B2 (lt)
AT (1) AT315769B (lt)
CA (1) CA981565A (lt)
CH (1) CH552092A (lt)
CS (1) CS168027B2 (lt)
DD (1) DD103468A5 (lt)
FR (1) FR2189554B1 (lt)
GB (1) GB1412858A (lt)
HU (1) HU171359B (lt)
IT (1) IT987831B (lt)
PL (1) PL86416B1 (lt)
SU (1) SU628828A3 (lt)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362957A1 (fr) * 1976-08-24 1978-03-24 Sulzer Ag Projectile a pince d'insertion des fils de trame dans une machine a tisser
US4295498A (en) * 1980-04-28 1981-10-20 Armstrong World Industries, Inc. Gripper shuttles
US5441086A (en) * 1993-02-18 1995-08-15 Sulzer Ruti Ag Gripper shuttle for a loom
US5632309A (en) * 1995-02-01 1997-05-27 Sulzer Rueti Ag Gripper projectile for a weaving machine
CN107695633A (zh) * 2017-11-23 2018-02-16 南通大学 一种片梭壳体的焊接方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199834B1 (de) * 1985-04-27 1989-01-04 GebràœDer Sulzer Aktiengesellschaft Greiferprojektil für Webmaschinen
EP0374101B1 (en) * 1988-12-16 1993-05-19 Werner Sollberger Gripper projectile for weaving machines
CN105537874B (zh) * 2016-01-15 2018-06-15 苏州利德精工制造有限公司 一种片梭壳体的焊接方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712345A (en) * 1970-05-29 1973-01-23 Sulzer Ag Yarn clamping mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712345A (en) * 1970-05-29 1973-01-23 Sulzer Ag Yarn clamping mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362957A1 (fr) * 1976-08-24 1978-03-24 Sulzer Ag Projectile a pince d'insertion des fils de trame dans une machine a tisser
US4120329A (en) * 1976-08-24 1978-10-17 Sulzer Brothers Limited Gripper shuttle for picking in weaving machines
US4295498A (en) * 1980-04-28 1981-10-20 Armstrong World Industries, Inc. Gripper shuttles
US5441086A (en) * 1993-02-18 1995-08-15 Sulzer Ruti Ag Gripper shuttle for a loom
US5632309A (en) * 1995-02-01 1997-05-27 Sulzer Rueti Ag Gripper projectile for a weaving machine
CN107695633A (zh) * 2017-11-23 2018-02-16 南通大学 一种片梭壳体的焊接方法
CN107695633B (zh) * 2017-11-23 2020-01-10 南通大学 一种片梭壳体的焊接方法

Also Published As

Publication number Publication date
JPS4941669A (lt) 1974-04-19
DD103468A5 (lt) 1974-01-20
CA981565A (en) 1976-01-13
GB1412858A (en) 1975-11-05
CS168027B2 (lt) 1976-05-28
AT315769B (de) 1974-06-10
CH552092A (de) 1974-07-31
HU171359B (hu) 1977-12-28
PL86416B1 (lt) 1976-05-31
IT987831B (it) 1975-03-20
DE2227089B2 (de) 1977-04-21
FR2189554B1 (lt) 1976-11-12
JPS5138834B2 (lt) 1976-10-23
FR2189554A1 (lt) 1974-01-25
DE2227089A1 (de) 1973-11-29
SU628828A3 (ru) 1978-10-15

Similar Documents

Publication Publication Date Title
US3854506A (en) Gripper shuttle
US7128098B2 (en) Transfer gripper for a rapier weaving loom
CS244664B2 (en) Input and output heads of loading needles for the shuttless loom
EP0248486B1 (en) Supply gripper for gripper weaving looms
EP0576074B1 (en) In a taker gripper for loom use
US3939878A (en) Gripper shuttle for weft yarns
US4120329A (en) Gripper shuttle for picking in weaving machines
US5465763A (en) Thread holder for a gripper loom
JP4595187B2 (ja) レピア織機における緯入れ装置
US5341852A (en) Taker gripper for loom use
US2728359A (en) Thread clamp for looms for weaving
US3927699A (en) Weft carrier control apparatus
US4295498A (en) Gripper shuttles
US4418727A (en) Weft insertion devices on looms having a motionless weft reserve
US3978897A (en) Weft extending carrier
US3986532A (en) Weft extending carrier
US5033515A (en) Lengthwise partitioned gripper projectile for weaving machines
EP0971059B1 (en) Gripper rapier provision for weaving machines
US3776281A (en) Weft carrier for shuttleless looms
US4505305A (en) Carrying gripper for looms
SU996555A1 (ru) Устройство дл прокладывани уточной нити на ткацком станке
US4542816A (en) Exit clip for insertion of the weft in the shed of a shuttleless weaving loom
US2759496A (en) Gripper shuttle having a thread clamp
EP4101961A1 (en) Clamping tongue and method for manufacturing a clamping tongue
US3181572A (en) Loom shuttle