US3079648A - Top roller holder - Google Patents

Top roller holder Download PDF

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Publication number
US3079648A
US3079648A US109407A US10940761A US3079648A US 3079648 A US3079648 A US 3079648A US 109407 A US109407 A US 109407A US 10940761 A US10940761 A US 10940761A US 3079648 A US3079648 A US 3079648A
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US
United States
Prior art keywords
shaft
lever
saddle means
spring
saddle
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
US109407A
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English (en)
Inventor
Schiltknecht Adolf
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Application granted granted Critical
Publication of US3079648A publication Critical patent/US3079648A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs
    • D01H5/505—Loading arrangements using springs for top roller arms

Definitions

  • top roller holders on guide and loading arms have been provided with bent fiat spring inserts which partly surrounded the top roller shaft, preventing falling out of the top rollers upon lifting of the arm.
  • the delivery top rollers of modern long staple two apron drafting arrangements are frequently long and heavy and/or long and heavy cradles are used and the support provided by the aforementioned flat springs is not suflicient.
  • removal of the double top rolls is diflicult in machines in which the lifted guide or loading arms cannot be locked in the open position. The operator usually holds the first removed double roll in his left hand which is, therefore, not available for holding up the guide or loading arm when removing the second and third double roll.
  • the holder according to the invention includes a lever which is pivoted to a member interposed between the guide or loading arm and the roller shaft. This lever partly surrounds and is resiliently pressed against the roller shaft and prevents the latter from falling out when the arm is lifted.
  • a further object of the invention is the provision of a top roller holder which can be conveniently removed from and mounted on the loading arm.
  • a top roller holder including a saddle member removably connected to the loading arm of a drafting arrangement and straddling the top roller shaft, a spring-loaded, rigid angle lever being pivotally mounted on and accommodated within said saddle member for normally retaining the top roller in the saddle member and permitting dropping of the top roller out of the saddle member upon slightly tipping the lever against the action of the spring which can be efiected by a finger of the operator.
  • An object of the invention resides in the provision of a top roller holder assembly which affords convenient assembly and disassembly of all individual parts thereof.
  • An object of the invention is the provision of a top roller holder assembly which holds the top roller in the exact desired operating position.
  • the top roller is placed in a journal slot of a saddle member which slot is so shaped as to provide engagement of the top roller shaft with the saddle member along a line parallel to the rotation axis of the top roller and the latter is retained in the journal slot by means of a spring-loaded angle lever pivotally mounted to and located within the saddle member and, when the device is in operating position, contacting the top roller shaft along a line parallel to the rotation axis of the shaft and angularly displaced with respect to the line of contact of the top roller axis and the saddle member.
  • FIG. 1 is a perspective part sectional view of the device according to the invention in normal operating position.
  • FIG. 2 is a perspective part sectional view of the device in position when the guide or loading arm is lifted.
  • FIG. 3 is a crosssectional view of the device in operating position and showing the relative position of the lines along which the top roller shaft is in contact with the saddle member and with the retaining lever.
  • numeral 1 designates a guide or loading arm from which a part is broken olf and which rigidly supports a saddle member 2 resting on a shaft 8 supporting top rolls 13 in the conventional manner, a journal slot 14 being provided in the member 2 receiving the shaft 8.
  • the member 2 is cut in a central vertical plane normal to the rotation axis of the shaft 8 to make visible an angular lever 5 which is swingably connected with the member 2 by a pin 4.
  • the saddle member 2 is provided with a recess 3 accommodating the lever 5.
  • the lever 5 has a horizontal .top portion 7 extending from the fulcrum of the lever across the top of the shaft 8.
  • the lower surface of the portion 7 of the lever 5 is provided with a surface 9 generated by a line which is parallel to the roller shaft 8.
  • a portion 15 of the lower surface 9 of the portion 7 is so shaped as to afiord, at 16, a single line contact with the shaft 8.
  • the journal slot 14 is so shaped as to afford, at 17, a single line contact with the shaft 8 which line is angularly displaced relative to the line 16 for accurately defining the position of the shaft.
  • a compression spring 11 is placed in a bore 19 extending upwardly from the bot-tom of the recess 3 into the member 2.
  • the spring 11 projects from the bore 10 and engages the horizontal part 7 of the lever 5, urging the lever to swing in clockwise direction whenever the arm 1 is unloaded or lifted. Clockwise movement of the lever 5 increases the grip of a downwardly extending portion 12 of the lever 5 on the shaft 8, preventing falling off of the top roll unit.
  • the saddle member 2 is rem-ovably connected by screws 18 to the arm 1 so that the entire top roller holder assembly can easily be removed for cleaning, repair or replacement.
  • the holder 2 is cut in a vertical plane which is normal to the rotation axis of the shaft 8 and in a vertical plane parallel to said rotation axis to show the position of the pin 4 in the member 2.
  • the lever 5 is tipped counterclockwise against the action of the spring it by a slight pressure on the portion 12 whereupon the top roller unit is free to fall into the hand of the operator.
  • a shaft supporting top rolls a guide and loading arm adapted to be lowered and lifted, saddle means supported by said loading arm and being immovable relatively thereto, said saddle means having a journal slot for receiving said shaft from below said saddle means, the latter resting on said shaft when said arm is in the lowered position, a rigid angular lever pivotally connected to said saddle means to swing on an axis parallel to said shaft and having a substantilly horizontal top portion extending from the fulcrum of said lever across the top of said shaft, said lever having a free end portion extending downwardly, a
  • said saddle means includes an abutment abutted by said lever-when said loading arm is'in normal operating position, said spring being placed inside of said saddle means and tending to press said lever away from said abutment.
  • a recess in said saddle means substantially entirely accommodating said lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US109407A 1957-08-26 1961-05-11 Top roller holder Expired - Lifetime US3079648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3079648X 1957-08-26

Publications (1)

Publication Number Publication Date
US3079648A true US3079648A (en) 1963-03-05

Family

ID=4573953

Family Applications (1)

Application Number Title Priority Date Filing Date
US109407A Expired - Lifetime US3079648A (en) 1957-08-26 1961-05-11 Top roller holder

Country Status (2)

Country Link
US (1) US3079648A (enrdf_load_stackoverflow)
FR (1) FR1201069A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268953A (en) * 1963-05-07 1966-08-30 Maremont Corp Textile carding and drafting apparatus
US4093390A (en) * 1975-10-29 1978-06-06 Ntn Toyo Bearing Co. Ltd. Bracket tightening device
US5953793A (en) * 1997-02-08 1999-09-21 Trutzschler Gmbh & Co. Kg Roll pressing device for a sliver drawing frame
US6154931A (en) * 1998-09-02 2000-12-05 Trutzschler Gmbh & Co. Kg Device for loading the upper drawing rolls in a draw frame and method
US20040049888A1 (en) * 2002-07-29 2004-03-18 Trutzschler Gmbh & Co. Kg Apparatus on a draw frame for textile fibre material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597850A (en) * 1949-05-26 1952-05-27 Wilson Lewith Attenuating apparatus
US2675586A (en) * 1949-05-29 1954-04-20 Suddeutsche Spindelwerke Zinse Drawing frame for spinning machines
US2694230A (en) * 1950-12-21 1954-11-16 Ver Kugellagerfabriken Ag Supporting and weighting device for the top rolls of textile drawing mechanisms
US2777169A (en) * 1952-01-30 1957-01-15 Casablancas High Draft Co Ltd Noguera

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597850A (en) * 1949-05-26 1952-05-27 Wilson Lewith Attenuating apparatus
US2675586A (en) * 1949-05-29 1954-04-20 Suddeutsche Spindelwerke Zinse Drawing frame for spinning machines
US2694230A (en) * 1950-12-21 1954-11-16 Ver Kugellagerfabriken Ag Supporting and weighting device for the top rolls of textile drawing mechanisms
US2777169A (en) * 1952-01-30 1957-01-15 Casablancas High Draft Co Ltd Noguera

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268953A (en) * 1963-05-07 1966-08-30 Maremont Corp Textile carding and drafting apparatus
US4093390A (en) * 1975-10-29 1978-06-06 Ntn Toyo Bearing Co. Ltd. Bracket tightening device
US5953793A (en) * 1997-02-08 1999-09-21 Trutzschler Gmbh & Co. Kg Roll pressing device for a sliver drawing frame
US6154931A (en) * 1998-09-02 2000-12-05 Trutzschler Gmbh & Co. Kg Device for loading the upper drawing rolls in a draw frame and method
US20040049888A1 (en) * 2002-07-29 2004-03-18 Trutzschler Gmbh & Co. Kg Apparatus on a draw frame for textile fibre material
US6910249B2 (en) * 2002-07-29 2005-06-28 Trutzchler Gmbh & Co. Kg Apparatus on a draw frame for textile fibre material

Also Published As

Publication number Publication date
FR1201069A (enrdf_load_stackoverflow) 1958-12-28

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