Patent US3637243A successfully refreshed from Google Patents.
US3637243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freewheel lock mechanism
Assignee: Aisin Corp
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Filing: 1970-04-20
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Granted: 1972-01-25
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Expires: 1990-04-20
Abstract
Abstract In the freewheel lock mechanism a split locking ring is provided intermediate a hub on the drive shaft and a flange on the wheel hub. A pawl is slidably mounted in a radial direction in a slot in the flange and is arranged to be moved into a first position intermediate the ends of the split locking ring to couple the locking ring to the flange and a second position wherein the pawl is completely withdrawn from the locking ring to thereby disconnect the drive between the locking ring and the flange. A spring member is connected to the pawl and a manually operated handle is provided for controlling the spring member which in turn will control the position of the pawl relative to the locking ring.
Inventors
- 👤 Shin Kitano
- 👤 Yutaka Momose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:49
CPC Classifications
F; F16; F16D; F16D11/00; Y; Y10; Y10T; Y10T403/00; Y10T403/10
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
188 words
Freewheel lock mechanism adapted for use on an automotive wheeled vehicle, and provided between a drive shaft and a wheel hub, said mechanism comprising in combination: 1. a drive flange rotatably mounted on a said drive shaft; 2. a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly of and through said drive flange; 3. a radial groove formed on said drive flange; 4. pawl means slidably mounted along said groove; 5. spring means connected to said pawl means and providing a resilient inwardly directing urging force thereto; 6. a tubular member attached to the outer end of said drive shaft and thus being rotatable therewith; 7. a connection member shaped into an open ring and inserted between said tubular member and said drive flange, a radially extending slot being formed between the open ends of said connection member; 8. a key fixedly attached to said tubular member and adapted for being brought into contact with said ring-shaped connection means; and 9. a cam means adapted for moving said pawl means in the radial direction of the lock mechanism.
Claim 2
Dependent Claim
188 words
Freewheel lock mechanism adapted for use on an automotive wheeled vehicle, and provided between a drive shaft and a wheel hub, said mechanism comprising in combination: 1. a drive flange rotatably mounted on a said drive shaft; 2. a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly of and through said drive flange; 3. a radial groove formed on said drive flange; 4. pawl means slidably mounted along said groove; 5. spring means connected to said pawl means and providing a resilient inwardly directing urging force thereto; 6. a tubular member attached to the outer end of said drive shaft and thus being rotatable therewith; 7. a connection member shaped into an open ring and inserted between said tubular member and said drive flange, a radially extending slot being formed between the open ends of said connection member; 8. a key fixedly attached to said tubular member and adapted for being brought into contact with said ring-shaped connection means; and 9. a cam means adapted for moving said pawl means in the radial direction of the lock mechanism.
Claim 3
Dependent Claim
25 words
a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly of and through said drive flange;
Claim 4
Dependent Claim
25 words
a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly of and through said drive flange;
Claim 5
Dependent Claim
175 words
Free wheel lock mechanism adapted for use on an automotive wheeled vehicle and provided between a drive shaft and a wheel hub, said mechanism comprising in combination a drive flange rotatably mounted on said drive shaft, a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly through said drive flange, radial groove means formed on said drive flange, pawl means slidably mounted along said groove means, a tubular member attached to the outer end of said drive shaft and arranged for rotation therewith, a connection member shaped into an open-ended ring and inserted between said tubular member and said drive flange, a radially extended slot being formed between the open ends of said connection member, a projection formed on said tubular member and adapted for being brought into contact with said ring-shaped connection means, spring means adapted to urge said pawl means in a radial direction along said groove means, and manually operable means for setting up the locking or unlocking position of the lock mechanism.
Claim 6
Dependent Claim
175 words
Free wheel lock mechanism adapted for use on an automotive wheeled vehicle and provided between a drive shaft and a wheel hub, said mechanism comprising in combination a drive flange rotatably mounted on said drive shaft, a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly through said drive flange, radial groove means formed on said drive flange, pawl means slidably mounted along said groove means, a tubular member attached to the outer end of said drive shaft and arranged for rotation therewith, a connection member shaped into an open-ended ring and inserted between said tubular member and said drive flange, a radially extended slot being formed between the open ends of said connection member, a projection formed on said tubular member and adapted for being brought into contact with said ring-shaped connection means, spring means adapted to urge said pawl means in a radial direction along said groove means, and manually operable means for setting up the locking or unlocking position of the lock mechanism.
Claim 7
Dependent Claim
198 words
Freewheel lock mechanism adapted for use on an automotive wheeled vehicle and provided between a drive shaft and a wheel hub, said mechanism comprising in combination a drive flange rotatably mounted on said drive shaft, a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly through said drive flange, radial groove means formed on said drive flange, pawl means slidably mounted along said groove means, a tubular member attached to the outer end of said drive shaft for rotation therewith, said member being provided with a recess for engaging with said pawl means so as to couple said member for rotation with said drive flange, a single spring means adapted to urge said pawl means in a radial direction, and manually operable means for changing the position of said spring means and setting up the locking or unlocking position of said lock mechanism whereby said spring means will urge said pawl means to engage with said recess upon moving said manually operable means to the locking position and will urge said pawl means to disengage from said recess upon movement of said manually operable means to the unlocking position.
Claim 8
Dependent Claim
198 words
Freewheel lock mechanism adapted for use on an automotive wheeled vehicle and provided between a drive shaft and a wheel hub, said mechanism comprising in combination a drive flange rotatably mounted on said drive shaft, a central opening formed through said drive flange for allowing one end of said drive shaft to extend outwardly through said drive flange, radial groove means formed on said drive flange, pawl means slidably mounted along said groove means, a tubular member attached to the outer end of said drive shaft for rotation therewith, said member being provided with a recess for engaging with said pawl means so as to couple said member for rotation with said drive flange, a single spring means adapted to urge said pawl means in a radial direction, and manually operable means for changing the position of said spring means and setting up the locking or unlocking position of said lock mechanism whereby said spring means will urge said pawl means to engage with said recess upon moving said manually operable means to the locking position and will urge said pawl means to disengage from said recess upon movement of said manually operable means to the unlocking position.
Claim 9
Dependent Claim
8 words
a radial groove formed on said drive flange;
Claim 10
Dependent Claim
8 words
a radial groove formed on said drive flange;
Claim 11
Dependent Claim
7 words
pawl means slidably mounted along said groove;
Claim 12
Dependent Claim
7 words
pawl means slidably mounted along said groove;
Claim 13
Dependent Claim
16 words
spring means connected to said pawl means and providing a resilient inwardly directing urging force thereto;
Claim 14
Dependent Claim
16 words
spring means connected to said pawl means and providing a resilient inwardly directing urging force thereto;
Claim 15
Dependent Claim
17 words
a tubular member attached to the outer end of said drive shaft and thus being rotatable therewith;
Claim 16
Dependent Claim
17 words
a tubular member attached to the outer end of said drive shaft and thus being rotatable therewith;
Claim 17
Dependent Claim
32 words
a connection member shaped into an open ring and inserted between said tubular member and said drive flange, a radially extending slot being formed between the open ends of said connection member;
Claim 18
Dependent Claim
32 words
a connection member shaped into an open ring and inserted between said tubular member and said drive flange, a radially extending slot being formed between the open ends of said connection member;
Claim 19
Dependent Claim
21 words
a key fixedly attached to said tubular member and adapted for being brought into contact with said ring-shaped connection means; and
Claim 20
Dependent Claim
21 words
a key fixedly attached to said tubular member and adapted for being brought into contact with said ring-shaped connection means; and
Claim 21
Dependent Claim
17 words
a cam means adapted for moving said pawl means in the radial direction of the lock mechanism.
Claim 22
Dependent Claim
17 words
a cam means adapted for moving said pawl means in the radial direction of the lock mechanism.
References Cited (Backward Citations)
US2846039A
Cited
US2907432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |