US2205176A - Power transmitter - Google Patents

Power transmitter Download PDF

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Publication number
US2205176A
US2205176A US146551A US14655137A US2205176A US 2205176 A US2205176 A US 2205176A US 146551 A US146551 A US 146551A US 14655137 A US14655137 A US 14655137A US 2205176 A US2205176 A US 2205176A
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US
United States
Prior art keywords
motor
clutch
driven
belt
support
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
US146551A
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English (en)
Inventor
Sauer George
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.)
Union Special Machine Co
Original Assignee
Union Special Machine Co
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 Union Special Machine Co filed Critical Union Special Machine Co
Priority to US146551A priority Critical patent/US2205176A/en
Priority to FR837403D priority patent/FR837403A/fr
Application granted granted Critical
Publication of US2205176A publication Critical patent/US2205176A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/14—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using only one pulley built-up out of adjustable conical parts
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/10—Electrical or electromagnetic drives
    • D05B69/12—Electrical or electromagnetic drives using rotary electric motors
    • D05B69/125—Arrangement of clutch-brake construction

Definitions

  • My invention relates to driving units and power transmitters, and is adaptable and advantageous for motor driven machines such as sewing machines, and especially where the motor drives through a belt.
  • Various other 15. features and advantages of the invention will ap-v pear from the following description of a species or form of embodiment, and from the drawings.
  • Fig. I is an end View of the power transmitter applied to a sewing machine, certain parts being partly broken away or in section.
  • Fig.- II is a side viewof the transmitter, with certain parts in vertical'longitudinal mid-section, the section being taken somewhat irregularly in order to show various parts more clearly.
  • Fig. III is a plan view of the transmitter.
  • Fig. IV is a tilted or perspective view of a bolt.
  • the transmitter is shown mounted beneath a sewing machine table it and drives the sewing machine H through a belt l2 (here shown as oi-V-section) that extends around suitably grooved pulleys i 3 and i l, the pulley [3 being associated with or forming part of the transmitter, and the pulley M being mounted on the main drive shaft R5 of the sewing machine.
  • the transmitter comprisesan (electric) motor it which is attached, as by bolts H, to a support or base plate mounted for movement down or up relative to the 4G fixed support or table iii, to tighten or loosen the belt it.
  • the supporting plate or motor mounting 20 may be pivoted or iulerumedon a pivot pin or bolt 2! extending, substantially parallel with the motor shaft 22, through downturned marginal flanges 23 at opposite endsof the supporting plate, and through rearward-projecting ears of a support bracket 2-5, which may be secured to the underside of the table W at or adjacent its rear edge by bolts 25. 50
  • a support bracket 2-5 which may be secured to the underside of the table W at or adjacent its rear edge by bolts 25.
  • the relation of the pixot axis 2 i of the support 28 to the belt i2 and the motor it is such that the weight of the motor acts to tighten the belt.
  • the power unit of the transmitter includes an interposed (Cl. Pl-242.13)
  • the clutch 21 serves as a means of controlling the operation of the pulley i3 and the parts driven therefrom, and may be aided in this by a braking mechanism for stopping the driven parts when the clutch is thrown out, as described hereinafter.
  • Belt-tightening downward movement of the motor It may be limited by any suitable means, such as a bolt 30 Whose T-head at is engaged in a transverse slot 32 in a longitudinal cylindrical upward embossment 33 of the base plate 20, and whose screw-threaded shank extends up through a hole in the table l0 and has adjusting means, shown as consisting of nut(s) (i l, 35, which are conveniently accessible above the table for manipulation by an operator seated in front of the table.
  • the'nut 34 is a knurled adjusting nut
  • the nut 35 is a wing lock nut.
  • a vibration-absorbing metal capped rubber Washer 36 may be interposed between the nuts 34, SEE-and the table H] between the nuts 34, SEE-and the table H] between the nuts 34, SEE-and the table H] between the nuts 34, SEE-and the table H] between the nuts 34, SEE-and the table H] between the nuts 34, SEE-and the table H] between the nuts 34, SEE-and the table H] between the nuts 34, SEE-and the table H] may be interposed a vibration-absorbing metal capped rubber Washer 36, shown as seated in a recessed seat 31 in the top of the table.
  • of the bolt 30 includes a squared portion 38 which engages in the slot 32 in the base plate 20, to prevent the bolt from turning.
  • --a helical compression spring 40 may be mounted around the bolt 30, to act between a washer ll in a recess 42 in the lower surface of the table it and a washer 43 engaging the top wall of the rounded portion 33 of the supporting plate 29.
  • the clutch 2'! includes a driving fly-wheel member M whose cylindrical hub is mounted on the motor shaft 22 and is compelled to turn therewith by a key and keyway engagement indicated at 46.
  • a ball bearing 41 may be interposed between the fly-wheel M and the motor casing 48, to take the end thrust of the clutch 21, so that it shall not be transmitted to the motor shaft 22 and the rotating parts of the motor itself (not shown).
  • the fly-wheel 44 may be fixed to the shaft 22 by a set-screw 49 in its hub 45.
  • With the driving clutch member M coacts a driven clutch member 50 whose cylindrical hub 51 is rotatably mounted on the flywheel hub 45.
  • lhe hub 5i may be provided with a separate bushing or liner 52 of suitable bearing material.
  • the pulley I3 is mounted around the hub 5
  • the driven clutch member 50 may have a conica1-surfaced friction liner 55 for engaging a corresponding conical surface on the driving clutch member 54, and may have a conically beveled (outer) braking surface 56, for coaction with other parts of a braking mechanism for controlling and stopping rotation of the parts driven through the clutch,--as described hereinafter.
  • the hub 5i includes an endcap 5'1 which is pressed on the end of the bearing bushing 52 and has a reduced end portion 58, around which is mounted an anti-friction ball bearing 59.
  • a rocking lever 50 is fulcrumed on the support 29, about an axis formed by a pivot pin or bolt 5i extending sub stantially at right angles to the pivot bolt 2!,
  • the actuator lever 6b is fulcrumed between the spaced apart ears or bracket arms 63 of the motor support 20. These ears 63 may be formed by downward extension of the marginal flanges 23 of the plate 20.
  • One arm of the lever is apertured for a flexible and universal pivotal engagement or connection with the eye of an operating link rod 64, while its other arm carries a brake block 66 whose acting face is beveled in correspondence with the conical bevel of the periphery 56 of the driven clutch member 50, with which it coacts.
  • the brake block 55 is seated in a vertical channel in the enlarged end of the lever 60, and secured by a bolt 67.
  • the lever 69 also has a downward projecting arm 68 which carries round headed abutment bolts 69 for engaging the ball bearing 59 at either side of the axis of the motor shaft 22,or of the reduced cap portion 58 on which the ball bearing is mounted. As shown in Figs.
  • a helical torsion spring ll is mounted around the bearing hub of the lever 60, with one end engaging the supporting plate 25 and the "other engaging the lever: this spring Til acts to urge the brake block 66 against the periphery 56 of the driven clutch member 58, and preferably has suflicient braking force to stop the driven parts quickly.
  • a lubricator 'H is mounted on the arm 58 of lever 50 between the round headed bearing bolts 69, with its delivery tube 72 extending into the interior of the cap portion 58 to deliver oil for lubricating the bearing surfaces of parts on the motor shaft 22.
  • the operator When it is desired to drive the sewing machine H, the operator operates a foot treadle (not shown), or other means connected to the rod 64, so as to lift the brake shoe 6% from the driven clutch member 5a and at the same time push the latter to the left into engagement with the driving clutch member 44.
  • the operator has only to release the treadle or other actuator for the rod 64, when the spring 10 will automatically throw in the brake 66 against the conically beveled periphery of the driven clutch member 59, thereby pushing the member 5! to the right to throw out the clutch 27, and also stop the driven parts.
  • the universally flexible eye-connection of the '1ink-rod 64 to the lever 60 allows the link-rod to operate eifectively in all angular positions of the support 20 about its pivot 2
  • a driving unit for sewing machines and the like comprising a motor and a rotary driving member, with interposed clutch means; means for motuiting said motor on the supporting structure of the machine to be driven, for movement relative thereto to tighten or loosen the driving connection between said driving member and said machine; means for adjusting said mounting means and said motor relative to said supporting structure; an actuator for said clutch means mounted on the aforesaid mounting means, and thus moving with said mounting means and said motor relative to said supporting structure; and an operating connection for said actuator flexibly pivoted thereto to operate the same in all normal angular relations of said motor to said structure.
  • a driving unit for sewing machines and the like comprising a motor and a driving member, with interposed clutch means; means for mounting said motor on the supporting structure of the machine to be driven, for movement relative to tighten or loosen the driving connection between said driving member and said machine, comprising a motor support with spaced apart arms; means for adjusting said support and motor relative to said supporting structure; an actuating lever for said clutch fulcrumed between said bracket arms about an axis substantially perpendicular to the motor shaft and thus moving with said mounting means and said motor relative to said supporting structure; and an operating connection for said lever universally pivoted thereto to operate the same in all normal angular relations of said motor to said structure.
  • a power unit comprising a motor and a pulley with interposed clutch means for interconnecting and disconnecting them, a belt for connecting said pulley to parts to be driven by the motor, a support for said power unit comprising a plate with laterally bent apertured portions, a supporting pivot for said plate extending through opposite apertures of such portions substantially parallel with the motor axis, a pivot extending through opposite apertures of other such portions substantially at right angles to the first mentioned pivot, and means rockable on said last-mentioned pivot to control said clutch and the rotation of the parts driven through it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US146551A 1937-06-05 1937-06-05 Power transmitter Expired - Lifetime US2205176A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US146551A US2205176A (en) 1937-06-05 1937-06-05 Power transmitter
FR837403D FR837403A (fr) 1937-06-05 1938-04-30 Mécanisme de transmission de puissance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US146551A US2205176A (en) 1937-06-05 1937-06-05 Power transmitter

Publications (1)

Publication Number Publication Date
US2205176A true US2205176A (en) 1940-06-18

Family

ID=22517894

Family Applications (1)

Application Number Title Priority Date Filing Date
US146551A Expired - Lifetime US2205176A (en) 1937-06-05 1937-06-05 Power transmitter

Country Status (2)

Country Link
US (1) US2205176A (fr)
FR (1) FR837403A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240368A (en) * 1980-03-17 1980-12-23 The Singer Company Motorized drive for a sewing machine including belt tensioning means
US4469036A (en) * 1982-10-04 1984-09-04 The Singer Company Electrically isolating sewing machine motor mount
US4571221A (en) * 1983-07-21 1986-02-18 Toyota Jidosha Kabushiki Kaisha V-Belt stretching mechanism
US4618336A (en) * 1984-03-02 1986-10-21 Toyota Jidosha Kabushiki Kaisha Belt stretching mechanism
US20050079939A1 (en) * 2003-10-09 2005-04-14 Simmons Stanley R. Belt tensioner and method
US20080127558A1 (en) * 2004-03-20 2008-06-05 Bruce Stanley Gunton Drive Arrangement
US20120216733A1 (en) * 2011-02-24 2012-08-30 Hsien-Chang Tseng Travel beginning/end adjusting positioning structure for a sewing machine motor drive mechanism
US20170067195A1 (en) * 2015-09-09 2017-03-09 Frankl & Kirchner GmbH & Co KG Fabrik für Elektromotoren u. elektrische Apparate Drive Motor Attachment Assembly for a Sewing Machine
US20180044830A1 (en) * 2016-08-15 2018-02-15 Juki Corporation Sewing machine and sewing system
US11359710B1 (en) * 2018-06-01 2022-06-14 Hudson Products Corporation Drive belt tensioning system for air-cooled heat exchangers

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240368A (en) * 1980-03-17 1980-12-23 The Singer Company Motorized drive for a sewing machine including belt tensioning means
US4469036A (en) * 1982-10-04 1984-09-04 The Singer Company Electrically isolating sewing machine motor mount
US4571221A (en) * 1983-07-21 1986-02-18 Toyota Jidosha Kabushiki Kaisha V-Belt stretching mechanism
US4618336A (en) * 1984-03-02 1986-10-21 Toyota Jidosha Kabushiki Kaisha Belt stretching mechanism
US7448973B2 (en) * 2003-10-09 2008-11-11 Stanley Simmons Belt tensioner and method
US20050079939A1 (en) * 2003-10-09 2005-04-14 Simmons Stanley R. Belt tensioner and method
US20080127558A1 (en) * 2004-03-20 2008-06-05 Bruce Stanley Gunton Drive Arrangement
US8033374B2 (en) * 2004-03-20 2011-10-11 Bruce Stanley Gunton Drive arrangement
US20120216733A1 (en) * 2011-02-24 2012-08-30 Hsien-Chang Tseng Travel beginning/end adjusting positioning structure for a sewing machine motor drive mechanism
US8297212B2 (en) * 2011-02-24 2012-10-30 Hsien-Chang Tseng Travel beginning/end adjusting positioning structure for a sewing machine motor drive mechanism
US20170067195A1 (en) * 2015-09-09 2017-03-09 Frankl & Kirchner GmbH & Co KG Fabrik für Elektromotoren u. elektrische Apparate Drive Motor Attachment Assembly for a Sewing Machine
US20180044830A1 (en) * 2016-08-15 2018-02-15 Juki Corporation Sewing machine and sewing system
US10626535B2 (en) * 2016-08-15 2020-04-21 Juki Corporation Sewing machine and sewing system
US11359710B1 (en) * 2018-06-01 2022-06-14 Hudson Products Corporation Drive belt tensioning system for air-cooled heat exchangers

Also Published As

Publication number Publication date
FR837403A (fr) 1939-02-09

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