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AssigneeDayco Products, Inc.
InventorsLarry A. Robertson, Ernest C. Arnsmeyer
Estimating the term…
The combination of an endless power transmission belt construction and pulley therefor, the belt construction and methods of making the same are provided, the belt construction having an inner surface defining a plurality of longitudinally disposed and alternately spaced apart like longitudinal projections and longitudinal grooves that are adapted to mesh with a ribbed surface of a pulley, the inner surface of the belt construction being cogged and defining a plurality of transversely disposed and alternately spaced apart transverse projections and transverse grooves, the transverse grooves each having a depth that is approximately one-half of the depth of the longitudinal grooves and that is approximately one-fourth of the thickness of the belt construction.
In the combination of an endless power transmission belt construction having opposed side edge means and having opposed inner surface means and outer surface means with said inner surface means defining a plurality of longitudinally disposed and alternately spaced apart like longitudinal projections and longitudinal grooves, said belt construction having a certain thickness, and a rotatable pulley means having an outer peripheral ribbed surface means meshing with a portion of said inner surface means of said belt construction and defining a plurality of longitudinally disposed and alternately spaced apart like longitudinal grooves and longitudinal projections that respectively have portions thereof for serially meshing respectively with cooperating portions of said longitudinal projections and longitudinal grooves of said inner surface means of said belt construction, the depth of said longitudinal grooves of said inner surface means of said belt construction being substantially less than the approximately 2.4 mm depth of the longitudinal grooves of a similar belt construction that is adapted to have the inner surface means thereof mesh with said ribbed surface means of said pulley means, said inner surface means being cogged and defining a plurality of transversely disposed and alternately spaced apart transverse projections and transverse grooves, the improvement wherein said transverse grooves each has a depth that is approximately one-half of said depth of said longitudinal grooves and that is approximately one-fourth of said thickness of said belt construction.
In an endless power transmission belt construction having opposed side edge means and having opposed inner surface means and outer surface means with said inner surface means defining a plurality of longitudinally disposed and alternately spaced apart like longitudinal projections and longitudinal grooves, said belt construction having a certain thickness, said belt construction being adapted to above said inner surface means thereof mesh with a ribbed outer peripheral surface means of a rotatable pulley means that has said ribbed means defining a plurality of longitudinally disposed and alternately spaced apart like longitudinal grooves and longitudinal projections that respectively have portions thereof for serially meshing respectively with cooperating portions of said longitudinal projections and longitudinal grooves of said inner surface jeans of said belt construction, the depth of said longitudinal grooves of said inner surface means of said belt construction being substantially less than the approximately 2.4 mm depth of the longitudinal grooves of a similar belt construction that is adapted to have the inner surface means thereof mesh with said ribbed surface means of said pulley means, said inner surface means being cogged and defining a plurality of transversely disposed and alternately spaced apart transverse projections and transverse grooves, the improvement wherein said transverse grooves each has a depth that is approximately one-half of said depth of said longitudinal grooves and that is approximately one-fourth of said thickness of said belt construction.
In a method of making an endless power transmission belt construction having opposed side edge means and having opposed inner surface means and outer surface means with said inner surface means defining a plurality of longitudinally disposed and alternately spaced apart like longitudinal projections and longitudinal grooves, said belt construction having a certain thickness, said belt construction being adapted to have said inner surface means thereof mesh with a ribbed outer peripheral surface means of a rotatable pulley means that has said ribbed surface means defining a plurality of longitudinally disposed and alternately spaced apart like longitudinal grooves and longitudinal projections that respectively have portions thereof for serially meshing respectively with cooperating portions of said longitudinal projections and longitudinal grooves of said inner surface means of said belt construction, the depth of said grooves of said inner surface means of said belt construction being substantially less than the approximately 2.4 mm depth of the longitudinal grooves of a similar belt construction that is adapted to have the inner surface means thereof mesh with said ribbed surface means of said pulley means, said inner surface means being cogged and defining a plurality of transversely disposed and alternately spaced apart transverse projections and transverse grooves, the improvement comprising the step of forming said transverse grooves to each have a depth that is approximately one-half of said depth of said longitudinal grooves and that is approximately one-fourth of said thickness of said belt construction.
Dependencies are inferred from the claim text.
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V-belts, i.e. belts of tapered cross-section: with a contact surface of special shape, e.g. toothed
Driving-belts: with a contact surface of special shape, e.g. toothed
Gearings for conveying rotary motion by endless flexible members: with belts; with V-belts
Belts, cables, or ropes, predominantly used for driving purposes
Term ended 16 Oct 2012 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
1. Field of the Invention
This invention relates to a new endless power transmission belt construction and to a new combination of the belt construction and a rotatable pulley means as well as to new methods of making the same.
2. Prior Art Statement
FIG. 1 is a broken away perspective view of the new endless power transmission belt construction of this invention.
FIG. 2 is an enlarged, fragmentary, cross-sectional view taken on line 2--2 of FIG. 1. and illustrating the belt construction meshing with a ribbed surface means of a rotatable pulley means or the like.
FIG. 3 is a fragmentary and schematic side view illustrating how the longitudinal spacings between the transverse grooves of the belt construction of FIG. 1 are developed.
While the various features of this invention are hereinafter illustrated and described as being particularly adapted to provide belt constructions for use with pulley means of an internal combustion engine, it is to be understood that the various features of this invention can be utilized singly or in various combinations thereof to provide belt constructions for other types of apparatus as desired.
Therefore, this invention is not to be limited to only the embodiment illustrated in the drawings, because the drawings are merely utilized to illustrate one of the wide variety of uses of this invention.
Referring now to FIGS. 1 and 2, the endless power transmission belt construction of this invention is generally indicated by the reference numeral 20 and is formed of any suitable material, such as polymeric material, the belt construction 20 having a load carrying cord 21 also formed of any suitable material, such as polyester, in a manner conventional in the art and having opposed inner surface means 22 and outer surface means 23. The inner surface means 22 is longitudinally ribbed and thereby has a plurality of longitudinally disposed and alternately spaced apart like longitudinal projections 24 and longitudinal grooves 25 disposed substantially parallel to and intermediate opposed parallel side edge means 26 and 27 of the belt construction 21 also in a manner well known in the art. In addition, the inner surface means 22 of the belt construction 20 is cogged and thereby defines a plurality of transversely disposed and alternately spaced apart transverse projections 28 and transverse grooves 29 also in a manner well known in the art.