US3521500A - Mechanical driving device - Google Patents

Mechanical driving device Download PDF

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Publication number
US3521500A
US3521500A US741667A US3521500DA US3521500A US 3521500 A US3521500 A US 3521500A US 741667 A US741667 A US 741667A US 3521500D A US3521500D A US 3521500DA US 3521500 A US3521500 A US 3521500A
Authority
US
United States
Prior art keywords
tape
driving device
belt
projections
mechanical driving
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
US741667A
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English (en)
Inventor
Robert Goudin
Jacques Bunel
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.)
US Philips Corp
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3521500A publication Critical patent/US3521500A/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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/28—Driving-belts with a contact surface of special shape, e.g. toothed

Definitions

  • the invention relates to a mechanical driving device in the form of a driving belt.
  • Driving belts having projections are already known.
  • the embodiments of these belts may be arranged in three main types.
  • a uniformly perforated metal tape provided with projections which are secured thereto by rivets.
  • a metal tape having rows of perforations in the transverse direction A metal wire which constitutes a cylindrical coil is threaded through the holes of two adjacent rows; this coil constitutes the core of the projection which is formed in place.
  • the materials for the manufacture ofthe projections usually are thermosetting resins, polymerisable plastics, rubber, and similar materials.
  • the object of the various constructions is to obtain a driving device without play and slippage. Play is particularly troublesome in those cases in which, a perforated paper tape or a system of toothed wheels is to be driven with precision. Slippage is troublesome since it prevents a suitable transmission of a movement. In addition it renders a higher tension on the transmission belt and hence requires a driving motor having a considerably larger power.
  • the mechanical driving device has a flexible belt or tape, on one surface of which transverse teeth are provided by which the tape is driven, and on the other surface projections are provided for driving by the tape. It is characterized in that the said projections are secured on supporting members which are held on the said tape by connection lugs folded about the edge of the tape and extending on either side of a tooth.
  • the said tape On the surface opposite to the teeth, the said tape comprises transverse notches, the edges of each of the supports rests on the top of two adjacent notches.
  • FIG. 1 is a longitudinal cross-sectional view of the tape according to the invention
  • FIG. 2 shows a cross-sectional view taken on the line aa of FIG. 1.
  • the driving device consists of a belt or tape of the type known by the trade name Synchroflex the profile of which is shown in FIG. 1.
  • This belt has a core of steel wires, which are embedded in a flexible polymer.
  • the rectangular teeth on the lower side are for driving the belt and avoiding slippage while the oppositely located triangular notches give the belt a larger flexibility.
  • the projections which are used for driving a perforated paper tape have the shape of knobs 1 and may be manufactured of any solid or semisolid material. Each of these knobs is secured to a support 2 of metal which has the form of a strongly flattened U (FIG. 2). The two limbs of the U are cut in such manner that only two lugs 3 remains (FIGS. 1 and 2) which are bent on either side of a rectangular tooth.
  • the sawtooth profile is used for compensation by causing the edges of the support 2 to bear on the triangular teeth.
  • the pitch of the rectangular teeth is 6.35 mm.
  • a division of the knobs over the belt is obtained every other tooth which corresponds to the standardized centre line distance of the perforations of the driven paper, namely 12.7 mm.
  • the use is not restricted to a pitch of 6.35 mm.; a tape having a different pitch which corresponds either to the pitch of the perforations of the paper, or to a multiple of the pitch may alternatively be used.
  • An advantage of the use of such supports is the possibility of using the sides thereof for guiding the tape.
  • any tape or belt may be used which has a profile the parts of which alternately project and recess.
  • the supports and projections may consist of one piece, if desired, which may consist of metal.
  • a mechanical driving device having a flexible tape on one surface of which transverse teeth are provided by which it is driven and projections on the other surface by which it drives, characterized in that the said projections are secured on supports which are secured to the said tape by connection lugs which are folded around the edge of the tape and extend on either side of a tooth.
  • a mechanical driving device for use with a flexible belt, having transverse teeth on a first surface thereof for engagement with belt driving means, and comprising a support member secured to the belt and around said teeth, the support member extending over a second surface of the belt, and a knob member aflixed to the sup- Patented July 21, 1970 port member and projecting outwardly from the second surface for slip-free positive driving.
  • a mechanical driving device as claimed in claim 4 wherein the support member has a flattened U shape, and the limbs of the U are bent around the opposite sides of the teeth.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Blinds (AREA)
  • Package Frames And Binding Bands (AREA)
US741667A 1967-07-07 1968-07-01 Mechanical driving device Expired - Lifetime US3521500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR113605A FR1536462A (fr) 1967-07-07 1967-07-07 Dispositif d'entraînement mécanique

Publications (1)

Publication Number Publication Date
US3521500A true US3521500A (en) 1970-07-21

Family

ID=8634754

Family Applications (1)

Application Number Title Priority Date Filing Date
US741667A Expired - Lifetime US3521500A (en) 1967-07-07 1968-07-01 Mechanical driving device

Country Status (7)

Country Link
US (1) US3521500A (en:Method)
BE (1) BE717723A (en:Method)
CH (1) CH488124A (en:Method)
DE (1) DE1775072A1 (en:Method)
FR (1) FR1536462A (en:Method)
GB (1) GB1175507A (en:Method)
NL (1) NL6809305A (en:Method)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682012A (en) * 1971-02-25 1972-08-08 Goodrich Co B F V-belt and method of making same
DE2332052A1 (de) * 1973-06-23 1975-01-16 Continental Gummi Werke Ag Verfahren zum herstellen von zahnriemen
US4453660A (en) * 1980-10-23 1984-06-12 International Business Machines Corporation Forms feed tractor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824252C1 (de) * 1998-05-29 1999-11-25 Siemens Ag Zahnriemenantrieb mit Mitnehmern

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984120A (en) * 1958-09-26 1961-05-16 Gates Rubber Co Positive drive power transmission belt
US3068710A (en) * 1952-12-02 1962-12-18 Continental Gumml Werke Ag Transmission belt of plastic material
US3151491A (en) * 1958-08-04 1964-10-06 Us Rubber Co Belt and belt-pulley drive
US3169262A (en) * 1964-01-07 1965-02-16 Electrolux Corp Floor polisher with double-toothed belt drive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068710A (en) * 1952-12-02 1962-12-18 Continental Gumml Werke Ag Transmission belt of plastic material
US3151491A (en) * 1958-08-04 1964-10-06 Us Rubber Co Belt and belt-pulley drive
US2984120A (en) * 1958-09-26 1961-05-16 Gates Rubber Co Positive drive power transmission belt
US3169262A (en) * 1964-01-07 1965-02-16 Electrolux Corp Floor polisher with double-toothed belt drive

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682012A (en) * 1971-02-25 1972-08-08 Goodrich Co B F V-belt and method of making same
DE2332052A1 (de) * 1973-06-23 1975-01-16 Continental Gummi Werke Ag Verfahren zum herstellen von zahnriemen
US4453660A (en) * 1980-10-23 1984-06-12 International Business Machines Corporation Forms feed tractor

Also Published As

Publication number Publication date
BE717723A (en:Method) 1969-01-06
GB1175507A (en) 1969-12-23
FR1536462A (fr) 1968-08-16
NL6809305A (en:Method) 1969-01-09
CH488124A (de) 1970-03-31
DE1775072A1 (de) 1971-04-08

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