US3743067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible overrunning clutch with automatic shift control
Assignee: Officemax Inc
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Filing: 1971-12-02
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Granted: 1973-07-03
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Expires: 1991-12-02
Abstract
Abstract An improved reversible overrunning clutch of the type including a central driver member that is axially shiftable by helical spline means between clutch engaged positions relative to axially spaced forward and reverse clutch members mounted on an output shaft. The invention is characterized by the provision of automatic shift control means operable in accordance with the direction of rotation of the rotary input drive means to shift the central driver member toward a readiness position immediately adjacent the appropriate clutch member, thereby insuring the correct directional operation of the unit.
Inventors
- 👤 R Bokovoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:09
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/22
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
240 words
Reversible overrunning clutch means for driving the overrunning front axle of a motor vehicle when the rotational speed thereof fails to exceed a rear axle speed by a predetermined slight amount, comprising a. a housing; b. an output shaft journalled in said housing, said output shaft being adapted for connection with the vehicle front axle; c. a rotary input driving member arranged for rotation adjacent said output shaft, said driving member being adapted for connection with the vehicle rear axle; d. reversible overrunning clutch means operable to connect said driving means with said output shaft, including 1. forward and reverse annular clutch members secured to said output shaft in axially spaced relation; 2. an annular central driver member slidably mounted on said output shaft between and spaced from said annular clutch members, said central driver member having at opposite ends clutch teeth of the self-disengaging overrunning type adapted to engage corresponding clutch teeth on said annular clutch members, respectively; and 3. direction-responsive operating means connected between said driving means and said central driver member for axially shifting said central driver member in a direction corresponding with the direction of rotation of said driving means; and e. automatic shift control means responsive to the direction of rotation of said driving means for positioning said central driver member in a readiness position immediately adjacent the corresponding one of said annular clutch members to insure the correct directional operation of said clutch means.
Claim 2
Dependent Claim
240 words
Reversible overrunning clutch means for driving the overrunning front axle of a motor vehicle when the rotational speed thereof fails to exceed a rear axle speed by a predetermined slight amount, comprising a. a housing; b. an output shaft journalled in said housing, said output shaft being adapted for connection with the vehicle front axle; c. a rotary input driving member arranged for rotation adjacent said output shaft, said driving member being adapted for connection with the vehicle rear axle; d. reversible overrunning clutch means operable to connect said driving means with said output shaft, including 1. forward and reverse annular clutch members secured to said output shaft in axially spaced relation; 2. an annular central driver member slidably mounted on said output shaft between and spaced from said annular clutch members, said central driver member having at opposite ends clutch teeth of the self-disengaging overrunning type adapted to engage corresponding clutch teeth on said annular clutch members, respectively; and 3. direction-responsive operating means connected between said driving means and said central driver member for axially shifting said central driver member in a direction corresponding with the direction of rotation of said driving means; and e. automatic shift control means responsive to the direction of rotation of said driving means for positioning said central driver member in a readiness position immediately adjacent the corresponding one of said annular clutch members to insure the correct directional operation of said clutch means.
Claim 3
Dependent Claim
47 words
an annular central driver member slidably mounted on said output shaft between and spaced from said annular clutch members, said central driver member having at opposite ends clutch teeth of the self-disengaging overrunning type adapted to engage corresponding clutch teeth on said annular clutch members, respectively; and
Claim 4
Dependent Claim
47 words
an annular central driver member slidably mounted on said output shaft between and spaced from said annular clutch members, said central driver member having at opposite ends clutch teeth of the self-disengaging overrunning type adapted to engage corresponding clutch teeth on said annular clutch members, respectively; and
Claim 5
Dependent Claim
192 words
Reversible overrunning clutch means as defined in claim 1, wherein said shift control means comprises a. an annular shift control member arranged concentrically at one end about one end of said central driver member for axial displacement relative to said output shaft; b. stationary annular shift control cam means connected with said housing colinear with and adjacent the other end of said shift control member, said shift control member and said shift control cam means having at adjacent ends cooperating cam teeth of the self-disengaging overrunning type; c. resilient means biasing said shift control member axially in the direction of said shift control cam means; d. means connecting said central driver member for limited axial movement relative to said shift control member; and e. holdout ring means connected between said shift control cam means and said shift control member, said holdout ring means being operable, when said input driving means is rotated in a direction causing said cam means to axially displace said shift control member in one direction toward a first enabling position relative to one of said clutch members, to retain said shift control member in said first enabling position.
Claim 6
Dependent Claim
79 words
direction-responsive operating means connected between said driving means and said central driver member for axially shifting said central driver member in a direction corresponding with the direction of rotation of said driving means; and e. automatic shift control means responsive to the direction of rotation of said driving means for positioning said central driver member in a readiness position immediately adjacent the corresponding one of said annular clutch members to insure the correct directional operation of said clutch means.
Claim 7
Dependent Claim
79 words
direction-responsive operating means connected between said driving means and said central driver member for axially shifting said central driver member in a direction corresponding with the direction of rotation of said driving means; and e. automatic shift control means responsive to the direction of rotation of said driving means for positioning said central driver member in a readiness position immediately adjacent the corresponding one of said annular clutch members to insure the correct directional operation of said clutch means.
Claim 8
Dependent Claim
64 words
Apparatus as defined in claim 2, wherein said holdout ring means is operable upon rotation of said input driving member in the opposite direction to release said shift control member, said shift control member being shiftable in the opposite axial direction by said resilient means and by the engagement of said cam teeth toward a second enabling position relative to the other clutch member.
Claim 9
Dependent Claim
84 words
Apparatus as defined in claim 3, and further including friction drag spring means resisting axial displacement of said central driver member relative to said output shaft, thereby assuring that during axial displacement of said central driver member toward either of said enabling positions, said central driver member is shifted to a retracted position relative to said shift control member, whereby when said shift control member is in an enabling position, said central driver is in a readiness position relative to the corresponding Clutch member.
Claim 10
Dependent Claim
59 words
Apparatus as defined in claim 1, wherein said input driving member comprises an annular hub member arranged concentrically at one end around one end of said central driver member, and further wherein said direction-responsive operating means comprises cooperating helical spline teeth arranged on the outer and inner peripheries of said central driver member and said annular hub member, respectively.
Claim 11
Dependent Claim
32 words
Apparatus as defined in claim 5, and further including a driving pinion rotatably mounted on said output shaft, said driving pinion being rigidly connected with the other end of said annular hub.
Claim 12
Dependent Claim
40 words
Apparatus as defined in claim 5, and further including an input shaft rotatably connected with said housing, said input shaft being colinear with said output shaft, said hub member being rigidly connected at its other end with said input shaft.
Claim 13
Dependent Claim
25 words
Apparatus as defined in claim 2, wherein said holdout ring means is arranged concentrically within said shift control cam means and said shift control member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |