US3078520A - Locking device for loading arm of drawing frame - Google Patents

Locking device for loading arm of drawing frame Download PDF

Info

Publication number
US3078520A
US3078520A US9238261A US3078520A US 3078520 A US3078520 A US 3078520A US 9238261 A US9238261 A US 9238261A US 3078520 A US3078520 A US 3078520A
Authority
US
United States
Prior art keywords
locking
loading arm
lever
loading
arm
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
Other languages
English (en)
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.)
Spindelfabrik Sussen Schurr Stahlecker and Grill GmbH
Original Assignee
Spindelfabrik Sussen Schurr Stahlecker and Grill GmbH
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 Spindelfabrik Sussen Schurr Stahlecker and Grill GmbH filed Critical Spindelfabrik Sussen Schurr Stahlecker and Grill GmbH
Application granted granted Critical
Publication of US3078520A publication Critical patent/US3078520A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D01H5/56—Supports for drafting elements
    • D01H5/565—Top roller arms

Definitions

  • the present invention relates to a locking device for locking the supporting and loading arm of the upper rollers of a drawing frame in a fixed position so as to ma1ntain the springs under tension which are interposed between the loading arm and the upper rollers and act upon the latter and to prevent these springs from pivoting the loading arm upwardly.
  • the locking device according to the invention essentially consists of a locking lever which extends along and acts upon a considerable part of the loading arm and is pivotably mounted on the loading arm at a point closely behind the pivoting axis of the loading arm.
  • locking devices for the supporting and loading arms of drawing frames it is known to provide small twoarmed levers with arms of approximately equal lengths, in which one arm serves as a pawl to engage into a recess in the locking member, while the other arm serves as an operating lever.
  • Such locking devices have the disadvantage that, before the pawl can be disengaged it must be released of its load, for example, by depressing the loading arm.
  • the loading arm is to be connected to the rearwardly mounted loading spring by means of the locking device.
  • the locking device is in these constructions mounted between the supporting rod and the drawing rollers which requires the loading arm to be made of a greater length which, in turn, means that the rear- Wardly mounted loading means have to be made of a greater strength.
  • the side walls of the angular part of the locking lever which surround the side walls of the loading arm may for this purpose be provided with a pin which serves as the locking member and extends through an aperture in each side wall of the loading arm.
  • the loading arm it is advisable to mount the loading arm directly on the supporting rod so as to be pivotable thereon, and to secure the loading arm in a fixed axial position by means of a clamp which is secured to the supporting rod and disposed between the side walls of the loading arm.
  • This clamp has on its rear side a locking projection.
  • the locking lever may be made of a weight sufiicient to maintain it in the locking position in which its locking pin, which is connected to the loading arm by extending through the aperture in the side States Patent walls thereof, presses upon the stationary locking projection on the clamp.
  • the locking member may, however, also be designed so that the locking action is effected by friction by providing the apertures in the side walls in the form of elongated slots so that the locking lever can pivot to a certain extent relative to the loading arm and thereby engage frictionally with the stationary projection on the clamp.
  • the locking action may be further secured by providing the stationary locking projection with a groove into which the locking pin may engage in the locked position so as to be held therein by the weight of the locking lever.
  • FIGURE 1 shows a side view of a loading arm with the drawing'rollers which'are merely shown diagrammatically, and with the locking lever in the operative position:
  • FIGURE 2 shows an enlarged view of the clamping member for securing the locking device by friction
  • FIGURE 3 shows a similar view of a clamping member for positively securing the locking device.
  • a supporting rod 1 carries the loading arm 2 which is pivotably mounted thereon and consists of sheet metal bent to a U-shape.
  • Loading arm 2 carries the upper drawing rollers 11 to which it is connected by springs (not shown) which tend to pivot the loading arm upwardly.
  • a clamping member 3 is clamped by means of a bolt 4 upon the stationary supporting rod 1 and is inserted between the two side walls 2" of loading arm 2 so that the latter is thus prevented from sliding in the axial direction.
  • a locking lever 5 which is likewise U-shaped has downwardly extending side walls 5 surrounding the side walls 2' of loading arm 2 and it is pivotably connected to the latter by a pin 6.
  • Locking lever 5 carries a pin 7 which extends through and is slidable along arcuate slots 7' in side walls 2' of loading arm 2 when lever 5 is being pivoted.
  • pin 7 engages upon the projection 8 on clampmg member 3.
  • the weight of locking arm 5 then mainturns it in the locked position. For unlocking it, it must merely be lifted by the handle on its front end. Pin 7 then slides off the projection 8, whereby the loading arm 2 s unlocked.
  • pin 7 engages upon the end of slots 7' and thereby takes along loading arm 2 so as to lift it together with the upper rollers 11 oil the lower rollers.
  • the head of clamping bolt 4 may also carry a leaf spring 9 which ls bent so that when lever 5 is pivoted upwardly pin 6 will slide over spring 9 and will then be arrested thereby to prevent loading arm 2 from falling.
  • FIGURE 2 illustrates how the locking projection 8 on clamping member 3 should be shaped to effect a frictional locking action.
  • pin 7 engages into the rounded part 10.
  • FIGURE 3 shows a modification, in which the locking pro ection 8" on clamping member 3" is additionally provided with a groove 10' of an arcuate shape of a radius equal to that of pin 7.
  • a drawing frame apparatus having upper rollers, a pivotably mounted loading arm for said upper rollers, said loading arm having side Wall portions, an angular one-armed locking lever extending along a considerable part of the length of said loading arm and pivotably mounted on said loading arm about an axis closely behind the pivoting axis of said loading arm, a locking member secured to said locking lever, a stationary member having a locking projection adapted to project into a space provided between said axis of said locking lever and said locking member when said locking lever is pivoted to the locking position, said locking member then engaging over said locking projection in locking engagement therewith.
  • a part of said lever adjacent said axis is substantially U-shaped and includes side walls partially surrounding said side wall portions of said loading arm, each of said side Wall portions being provided with an aperture extending therethrough, and wherein said locking member comprises a pin secured to said side walls of said locking lever and extending through the apertures in said side Wall portions of said loading arm.
  • Apparatus as defined in claim 2 further comprising a stationary supporting rod, said loading arm being substantially U-shaped and pivotably mounted on said supporting rod, and wherein said stationary member is a clamping member clamped upon said supporting rod intermediate the side wall portions of said loading arm and preventing an axial movement of said loading arm, said clamping member having a rear projection thereon forming said locking projection.
  • a pivotably mounted roller loading arm a locking lever pivotably mounted about an'axis closely behind the pivoting axis of said loading arm and adapted to overlie a portion of said loading arm in the locking position thereof, a locking member secured to said locking lever, a stationary member having a locking projection adapted to project into a space provided between said axis of said locking lever and said locking member when said locking lever is pivoted towards the locking position thereof, and said locking member being in locking engagement with said locking projection in the locking position of said locking lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Hinges (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
US9238261 1960-03-02 1961-02-28 Locking device for loading arm of drawing frame Expired - Lifetime US3078520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW27368A DE1152047B (de) 1960-03-02 1960-03-02 Verriegelungsvorrichtung an Trag- und Belastungsarmen fuer die Oberwalzen von Streckwerken

Publications (1)

Publication Number Publication Date
US3078520A true US3078520A (en) 1963-02-26

Family

ID=7598618

Family Applications (1)

Application Number Title Priority Date Filing Date
US9238261 Expired - Lifetime US3078520A (en) 1960-03-02 1961-02-28 Locking device for loading arm of drawing frame

Country Status (4)

Country Link
US (1) US3078520A (US07608600-20091027-C00054.png)
DE (1) DE1152047B (US07608600-20091027-C00054.png)
FR (1) FR1281797A (US07608600-20091027-C00054.png)
GB (1) GB898843A (US07608600-20091027-C00054.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035027A (en) * 1989-02-11 1991-07-30 Zinser Textilmaschinen Gmbh Means for manipulating a drafting roller carrier of a textile machine
WO2013054214A1 (en) * 2011-10-13 2013-04-18 Lakshmi Machine Works Ltd. An improved top arm for textile machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389053B (zh) * 2014-11-20 2017-02-01 四川成发普睿玛机械工业制造有限责任公司 一种气动加压摇架握持管与握持安装机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071548B (US07608600-20091027-C00054.png) * 1959-12-17
CH268500A (de) * 1947-03-19 1950-05-31 Rieter Joh Jacob & Cie Ag Streckwerk mit Belastungsschiene.
BE498258A (US07608600-20091027-C00054.png) * 1949-09-23
DE1027570B (de) * 1956-01-04 1958-04-03 Skf Kugellagerfabriken Gmbh Verriegelungsvorrichtung fuer einen Oberwalzen-Trag- und Belastungsarm an Streckwerken fuer Spinnereimaschinen
CH344657A (de) * 1956-06-20 1960-02-15 Rieter Joh Jacob & Cie Ag Streckwerk für eine Spinnereimaschine mit einer Verriegelungs- und Abhebevorrichtung für den Führungsarm

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035027A (en) * 1989-02-11 1991-07-30 Zinser Textilmaschinen Gmbh Means for manipulating a drafting roller carrier of a textile machine
WO2013054214A1 (en) * 2011-10-13 2013-04-18 Lakshmi Machine Works Ltd. An improved top arm for textile machines

Also Published As

Publication number Publication date
FR1281797A (US07608600-20091027-C00054.png) 1961-12-04
DE1152047B (de) 1963-07-25
GB898843A (US07608600-20091027-C00054.png) 1962-06-14

Similar Documents

Publication Publication Date Title
SE8901021D0 (sv) Haallaranordning
GB1215424A (en) Vehicle
US3078520A (en) Locking device for loading arm of drawing frame
US2824504A (en) Quick mounting means for photographic cameras
GB1116247A (en) Improvements in and relating to lifting clamps
US3574246A (en) Buckle for cargo-holding straps
US2865056A (en) Textile drawing mechanism
US2915276A (en) Boat holding apparatus
JPH0468190B2 (US07608600-20091027-C00054.png)
US4355480A (en) Reel mounting handle
CN111491828A (zh) 负荷承载器支脚
US2787930A (en) Pedal actuated drum sticks
ES359243A1 (es) Dispositivo para el bloqueo de una parte de cinturon coope-rante con un mecanismo de retraccion.
US3077790A (en) Cable brake for trucks
US5094274A (en) Heddle frame carrier for interchangeable heddle frames
US2814838A (en) Bracket fastening means for textile drawing mechanisms
US5005862A (en) Tiltable steering device
US2614586A (en) Loom harness
GB1243831A (en) A vehicle chair having a resiliently supported seat
US2217752A (en) Brake lever-friction type
GB855531A (US07608600-20091027-C00054.png)
US1398126A (en) Abthtjb isvyis cochbazste
US1964843A (en) Heddle bar securing device
US1791821A (en) Press
US1823478A (en) Spring counterbalance and lock for pressing machines