US1586990A - Spline shaft - Google Patents

Spline shaft Download PDF

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Publication number
US1586990A
US1586990A US708281A US70828124A US1586990A US 1586990 A US1586990 A US 1586990A US 708281 A US708281 A US 708281A US 70828124 A US70828124 A US 70828124A US 1586990 A US1586990 A US 1586990A
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United States
Prior art keywords
splines
spline
spline shaft
groove
shaft
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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
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US708281A
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Henry P Harrison
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Individual
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Priority to US708281A priority Critical patent/US1586990A/en
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    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7026—Longitudinally splined or fluted rod
    • Y10T403/7035—Specific angle or shape of rib, key, groove, or shoulder

Definitions

  • Figure 2 is a large cross sectional view of such spline shaft.
  • 1 designates the spline shaft which is shown as formed with a plui'ality of splines 2 which are cut from the shaft in the usual manner.
  • the shaft is formed with a groove 3 at the corner of each side 4- of the spline and the bottom 5 of the space between the splines. This groove extending diagonally inwardlyat the corner of each side 4 and bottom 5, that is, at the base of the spline and inwardly toward the central plane of the spline.
  • the groove is usually rectangular in cross section, and the sides thereof are arranged at an inclined angle to the sides 4. of the splines and the bottom 5 of the space between the splines, although the groove is not necessarily rectan" gular.
  • the median plane of the groove in the direction of its depth substantially other side of the groove opens through the bottom of the space between the splines, al though it is not necessary that the groove open through the bottom of the space between. the splines, in order to relieve the side of the splines.
  • the splines have been relieved by a bobbing operation which cuts the splines and the bottom of the space between the splines, as indicated by the dotted lines 6, Fi 2, and thereafter the'splines are accriately ground by a grinding; wheel.
  • This spline shaft construction, as described, requires no grinding, the cost of production is considerably less than the spline shafts which are ground. and accuracy is obtained without grinding and the liability of developing inaccuracy is avoided during the grinding operation due to variations developing in the grinder and variations due to unskilled grinding or lapses on the part of the workman.
  • a splined shaft formed with grooves at the corners of the sides of the spline and the bottom of the space between the splines of such groove.
  • a splined shaft formed with an inwardly and laterally extending groove along the base of each side of the spline.
  • a splined shaft formed with laterally and obliquely extending grooves at the bases of the splines, such grooves openingthrough the sides of the splines and the bottom of the space between the splines.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

' June 1 1926. 1,586,990
H. P. HARRISON SPLINE SHAFT Filed Apri'l 22, 1924 3 I N VEN TOR.
' -2 BY '%%/w A TTORNEY-S Patented June 1, 1926.
UNITED HENRY 1?. HARRISON, OF SYRACUSE, NEW YORK.
SPLINE SHAFT.
Application filed April 22, 1924. Serial No. 708,281.
' embodying my invention.
Figure 2 is a large cross sectional view of such spline shaft.
In forn'iing' spline shafts for mechanism in which extreme accuracy is required so as to avoid looseness between the spline shaft and the wheel, gear, clutch section, etc., mounted on the spline shaft, such as spline shafts used in the transmission gears, rear axles of automobiles, etc., the shafts have been cut with the splines thereon and the sides of the splines relieved with a suitable tool as a hob and thereafter the shafts ground. The grinding of the splines, in order to accurately fit the bore of the wheel or hub is a comparatively expensive precision operation. In this spline shaft and by this method, the grinding operation is dispensed with and the splines accurately formed and hence the liability of developing inaccuracy by unskilled or lack of extreme attention during the grinding operation is avoided.
In the drawings, 1 designates the spline shaft which is shown as formed with a plui'ality of splines 2 which are cut from the shaft in the usual manner. The shaft is formed with a groove 3 at the corner of each side 4- of the spline and the bottom 5 of the space between the splines. this groove extending diagonally inwardlyat the corner of each side 4 and bottom 5, that is, at the base of the spline and inwardly toward the central plane of the spline. The groove is usually rectangular in cross section, and the sides thereof are arranged at an inclined angle to the sides 4. of the splines and the bottom 5 of the space between the splines, although the groove is not necessarily rectan" gular.
Usually the median plane of the groove in the direction of its depth substantially other side of the groove opens through the bottom of the space between the splines, al though it is not necessary that the groove open through the bottom of the space between. the splines, in order to relieve the side of the splines.
l-leretofore, the splines have been relieved by a bobbing operation which cuts the splines and the bottom of the space between the splines, as indicated by the dotted lines 6, Fi 2, and thereafter the'splines are accriately ground by a grinding; wheel.
This spline shaft construction, as described, requires no grinding, the cost of production is considerably less than the spline shafts which are ground. and accuracy is obtained without grinding and the liability of developing inaccuracy is avoided during the grinding operation due to variations developing in the grinder and variations due to unskilled grinding or lapses on the part of the workman.
What- I claim is:
1. A splined shaft formed with grooves at the corners of the sides of the spline and the bottom of the space between the splines of such groove.
2. A splined shaft formed with an inwardly and laterally extending groove along the base of each side of the spline.
3. A splined shaft formed with laterally and obliquely extending grooves at the bases of the splines, such grooves openingthrough the sides of the splines and the bottom of the space between the splines.
In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and State of New York, this 16th day of January 19%.
HENRY P. HARRISON.
US708281A 1924-04-22 1924-04-22 Spline shaft Expired - Lifetime US1586990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US708281A US1586990A (en) 1924-04-22 1924-04-22 Spline shaft

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US708281A US1586990A (en) 1924-04-22 1924-04-22 Spline shaft

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US1586990A true US1586990A (en) 1926-06-01

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765529A (en) * 1953-05-11 1956-10-09 Borg Warner Methods of forming splines in bores of machine elements
US2777717A (en) * 1953-02-16 1957-01-15 American Can Co Locking device for machine assemblies
US2830834A (en) * 1955-05-16 1958-04-15 Wildhaber Ernest Method and apparatus for finishing toothed face couplings and the like, and toothed face coupling
US20050217338A1 (en) * 2004-03-31 2005-10-06 Mamoru Zennyoji Method for forming ridges in a shaft member
US20070183844A1 (en) * 2004-02-19 2007-08-09 Ernst Grob Ag Tooth profile of a spline shaft
US20070254743A1 (en) * 2006-04-27 2007-11-01 Honeywell International, Inc. Spline with lubricant retention feature for use in torque limiter
US20090227416A1 (en) * 2006-03-23 2009-09-10 Toyota Jidosha Kabushiki Kaisha Power transmission device and method of assembling the same
US20100069192A1 (en) * 2006-03-23 2010-03-18 Toyota Jidosha Kabushiki Kaisha Power transmission unit and method for assembling same
US9845861B1 (en) * 2016-05-26 2017-12-19 GM Global Technology Operations LLC Rotatable assembly including a coupling interface

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777717A (en) * 1953-02-16 1957-01-15 American Can Co Locking device for machine assemblies
US2765529A (en) * 1953-05-11 1956-10-09 Borg Warner Methods of forming splines in bores of machine elements
US2830834A (en) * 1955-05-16 1958-04-15 Wildhaber Ernest Method and apparatus for finishing toothed face couplings and the like, and toothed face coupling
US7874760B2 (en) * 2004-02-19 2011-01-25 Ernst Grob Ag Tooth profile of a spline shaft
US20070183844A1 (en) * 2004-02-19 2007-08-09 Ernst Grob Ag Tooth profile of a spline shaft
CN100455371C (en) * 2004-03-31 2009-01-28 株式会社美姿把 Method for forming ridges in a shaft member
US7500918B2 (en) * 2004-03-31 2009-03-10 Mitsuba Corporation Shaft member provided with a plurality of ridges on an outer circumferential surface thereof
US20050217338A1 (en) * 2004-03-31 2005-10-06 Mamoru Zennyoji Method for forming ridges in a shaft member
US20090227416A1 (en) * 2006-03-23 2009-09-10 Toyota Jidosha Kabushiki Kaisha Power transmission device and method of assembling the same
US20100069192A1 (en) * 2006-03-23 2010-03-18 Toyota Jidosha Kabushiki Kaisha Power transmission unit and method for assembling same
US8337350B2 (en) * 2006-03-23 2012-12-25 Toyota Jidosha Kabushiki Kaisha Power transmission device and method of assembling the same
US20070254743A1 (en) * 2006-04-27 2007-11-01 Honeywell International, Inc. Spline with lubricant retention feature for use in torque limiter
US7491127B2 (en) * 2006-04-27 2009-02-17 Honeywell International Inc. Spline with lubricant retention feature for use in torque limiter
US9845861B1 (en) * 2016-05-26 2017-12-19 GM Global Technology Operations LLC Rotatable assembly including a coupling interface

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