US3200918A - Overrunning clutch - Google Patents
Overrunning clutch Download PDFInfo
- Publication number
- US3200918A US3200918A US270364A US27036463A US3200918A US 3200918 A US3200918 A US 3200918A US 270364 A US270364 A US 270364A US 27036463 A US27036463 A US 27036463A US 3200918 A US3200918 A US 3200918A
- Authority
- US
- United States
- Prior art keywords
- pawl
- ratchet
- shaft
- drive arm
- drive
- 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
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
- G03D13/003—Film feed or extraction in development apparatus
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
Definitions
- This invention relates to an overrunning clutch and, more particularly, to a unidirectional ratchet and pawl clutch.
- an object of my invention is to provide a simple and reliable overrunning clutch.
- a pawl is provided with a drive arm having a substantial length and being formed so that a mjor portion of the length thereof is supported by the ratchet teeth drivable by the pawl.
- the added length results in a distributed flexing with a resultant decrease in fatigue, while the auxiliary support by the ratchet teeth enhances the effective drive force attainable.
- FIG. 1 is a plan view of one embodiment of the present invention
- FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1;
- FIG. 3 is a plan view of another embodiment of the present invention.
- FIG. 1 I have shown in FIG. 1 a gear shown as a ring gear ratchet having inwardly projecting teeth 11 engageable by the tip 12 of a drive arm 13.
- the drive arm 13 is a portion of a pawl arrangement 14 secured to a drivable shaft 15 by a sleeve portion 16.
- the pawl be formed by a process such as injection molding with a configuration, wherein a bend in the arm support region 18 is provided initially so that a major portion of the drive arm 13 is closely adjacent to the ratchet teeth 11 when the tip 12 is in the driving position.
- the drive arm 13 obtains substantially auxiliary support from the ring gear ratchet 10.
- the ratchet tooth 11b is presently supporting the central section of the drive arm 13.
- Increased driving pressure tends to result in additional supice port from the ratchet teeth 11a and 110. dependence of support, the drive arm 13 may be substantially longer than its thickness would dictate if it were unsupported. A shorter length allowing a self-supporting drive arm increases fatigue problems, especially when using plastics as are suitable for reliable operations within solutions which tend to dissolve or oxidize metals.
- the pawl sleeve 16 is drivingly coupled to the shaft 15 by a press fit over a knurled region, as indicated at 20.
- rotation of the shaft 15 in a counterclockwise direction (FIG. 1) drives the ring gear ratchet 10 and thereby drives an outer shaft or roller 22 secured thereto.
- the roller 22 overlaps the shaft 15 in the region of the pawl 14.
- the driving connection between the tip 12 and one of the ratchet teeth 11 is released, whereby the tip 12 slides over consecutive teeth with the length of the drive arm 13 enhancing a relatively soft and quiet operation and resulting in a lower overdrive torque.
- the low overdrive torque is a particularly valuable characteristic when the roller 22 is used to transport films and the like during a developing process.
- the ratchet teeth 11 are individually symmetrical so that the pawl 14 may drive the ring gear ratchet 10 and its roller 22 in either direction in accordance with placement of the pawl 14 on the shaft 15.
- FIGS. 1 and 2 illustrate an arrangement wherein the central portion of the drive arm 13 is supported by gear teeth which prevent its outward deflection
- the pres ent invention is also usable in constructions where the ratchet lies inside the pawl sleeve 16.
- FIG. 3 one such arrangement is shown wherein a sleeve 16 of a pawl 14' is supported within the roller 22.
- An elongated drive arm 13' couples a drive tip 12' to an arm support region 13'.
- gear teeth 11 During driving of the roller 22 by the shaft 15, a major portion of the drive arm 13 is supported by gear teeth 11.
- An overrunning ratchet drive clutch for selectively coupling two coaxial shafts having an overlapping region comprising:
- a pawl sleeve removably secured to the inner shaft with in the overlapping region
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US270364A US3200918A (en) | 1963-04-03 | 1963-04-03 | Overrunning clutch |
JP1532564A JPS419484B1 (de) | 1963-04-03 | 1964-03-21 | |
GB12518/64A GB988664A (en) | 1963-04-03 | 1964-03-25 | Pawl and ratchet mechanisms |
DE19641450108 DE1450108A1 (de) | 1963-04-03 | 1964-04-02 | UEberholkupplung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US270364A US3200918A (en) | 1963-04-03 | 1963-04-03 | Overrunning clutch |
Publications (1)
Publication Number | Publication Date |
---|---|
US3200918A true US3200918A (en) | 1965-08-17 |
Family
ID=23031042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US270364A Expired - Lifetime US3200918A (en) | 1963-04-03 | 1963-04-03 | Overrunning clutch |
Country Status (4)
Country | Link |
---|---|
US (1) | US3200918A (de) |
JP (1) | JPS419484B1 (de) |
DE (1) | DE1450108A1 (de) |
GB (1) | GB988664A (de) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3486597A (en) * | 1967-11-02 | 1969-12-30 | William Charles Carlton | Moulded one-way clutch |
US3516603A (en) * | 1968-08-02 | 1970-06-23 | Gen Motors Corp | Tamper-proof odometer one-way drive |
US3589486A (en) * | 1968-07-19 | 1971-06-29 | Kienzle Apparate Gmbh | One way clutch device |
US3602932A (en) * | 1969-07-14 | 1971-09-07 | Bissell Inc | Floor sweeper with improved drive coupling |
US3667307A (en) * | 1968-07-19 | 1972-06-06 | Kienzle Apparate Gmbh | Stepping clutch device |
US3667671A (en) * | 1970-08-21 | 1972-06-06 | Gen Motors Corp | Anti-reverse odometer one-way drive |
US3865220A (en) * | 1972-05-30 | 1975-02-11 | Jr William A Thompson | Bicycle hub |
US3928862A (en) * | 1974-05-02 | 1975-12-23 | Polaroid Corp | Photographic film advancing and processing apparatus having a protective device |
US4346749A (en) * | 1980-08-18 | 1982-08-31 | Sears, Roebuck And Company | Motor and roller support for window shades and the like |
US4553869A (en) * | 1983-09-12 | 1985-11-19 | International Business Machines Corp. | Buckling one way clutch |
WO1987003033A1 (en) * | 1985-11-06 | 1987-05-21 | Bundschuh Robert L | Retraction device for doors or windows |
US5000721A (en) * | 1987-08-20 | 1991-03-19 | Itt Corporation | Clutch apparatus |
US5088581A (en) * | 1991-01-30 | 1992-02-18 | Eaton Corporation | One-way clutch |
US5835805A (en) * | 1996-04-08 | 1998-11-10 | Fuji Photo Film Co., Ltd. | Film transporting device of camera and clutch structure and camera with magnetic recording function |
US6470982B2 (en) | 2001-02-08 | 2002-10-29 | Mattel, Inc. | Children's ride-on vehicle with mechanical speed control |
US20120186054A1 (en) * | 2011-01-26 | 2012-07-26 | Nivarox-Far S.A. | Pawl lock assembly system |
EP2392975A3 (de) * | 2010-06-03 | 2018-01-24 | Patek Philippe SA Genève | Drehorgan mit unidirektionaler Kupplung |
US20190162249A1 (en) * | 2017-11-24 | 2019-05-30 | Kabo Tool Company | One-way inertial rotational device |
US11040270B1 (en) | 2020-04-29 | 2021-06-22 | Dennis Griffin, Sr. | Billiard cue storage assembly |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2141799B (en) * | 1983-06-03 | 1986-07-16 | Diehl Gmbh & Co | An adjusting ratchet mechanism for a time switch |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444570A (en) * | 1948-07-06 | Drive for counter numeral wheels | ||
US2500973A (en) * | 1946-04-04 | 1950-03-21 | Ackerman Charles | Slicing machine |
US2551000A (en) * | 1946-05-31 | 1951-05-01 | Studebaker Corp | Overrunning clutch |
FR1239977A (fr) * | 1959-07-20 | 1960-09-02 | Perfectionnements apportés aux mécanismes d'encliquetage |
-
1963
- 1963-04-03 US US270364A patent/US3200918A/en not_active Expired - Lifetime
-
1964
- 1964-03-21 JP JP1532564A patent/JPS419484B1/ja active Pending
- 1964-03-25 GB GB12518/64A patent/GB988664A/en not_active Expired
- 1964-04-02 DE DE19641450108 patent/DE1450108A1/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444570A (en) * | 1948-07-06 | Drive for counter numeral wheels | ||
US2500973A (en) * | 1946-04-04 | 1950-03-21 | Ackerman Charles | Slicing machine |
US2551000A (en) * | 1946-05-31 | 1951-05-01 | Studebaker Corp | Overrunning clutch |
FR1239977A (fr) * | 1959-07-20 | 1960-09-02 | Perfectionnements apportés aux mécanismes d'encliquetage |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3486597A (en) * | 1967-11-02 | 1969-12-30 | William Charles Carlton | Moulded one-way clutch |
US3589486A (en) * | 1968-07-19 | 1971-06-29 | Kienzle Apparate Gmbh | One way clutch device |
US3667307A (en) * | 1968-07-19 | 1972-06-06 | Kienzle Apparate Gmbh | Stepping clutch device |
US3516603A (en) * | 1968-08-02 | 1970-06-23 | Gen Motors Corp | Tamper-proof odometer one-way drive |
US3602932A (en) * | 1969-07-14 | 1971-09-07 | Bissell Inc | Floor sweeper with improved drive coupling |
US3667671A (en) * | 1970-08-21 | 1972-06-06 | Gen Motors Corp | Anti-reverse odometer one-way drive |
US3865220A (en) * | 1972-05-30 | 1975-02-11 | Jr William A Thompson | Bicycle hub |
US3928862A (en) * | 1974-05-02 | 1975-12-23 | Polaroid Corp | Photographic film advancing and processing apparatus having a protective device |
US4346749A (en) * | 1980-08-18 | 1982-08-31 | Sears, Roebuck And Company | Motor and roller support for window shades and the like |
US4553869A (en) * | 1983-09-12 | 1985-11-19 | International Business Machines Corp. | Buckling one way clutch |
WO1987003033A1 (en) * | 1985-11-06 | 1987-05-21 | Bundschuh Robert L | Retraction device for doors or windows |
US5000721A (en) * | 1987-08-20 | 1991-03-19 | Itt Corporation | Clutch apparatus |
US5088581A (en) * | 1991-01-30 | 1992-02-18 | Eaton Corporation | One-way clutch |
US5835805A (en) * | 1996-04-08 | 1998-11-10 | Fuji Photo Film Co., Ltd. | Film transporting device of camera and clutch structure and camera with magnetic recording function |
US6470982B2 (en) | 2001-02-08 | 2002-10-29 | Mattel, Inc. | Children's ride-on vehicle with mechanical speed control |
EP2392975A3 (de) * | 2010-06-03 | 2018-01-24 | Patek Philippe SA Genève | Drehorgan mit unidirektionaler Kupplung |
US20120186054A1 (en) * | 2011-01-26 | 2012-07-26 | Nivarox-Far S.A. | Pawl lock assembly system |
US10088804B2 (en) * | 2011-01-26 | 2018-10-02 | Nivarox-Far S.A. | Pawl lock assembly system |
US20190162249A1 (en) * | 2017-11-24 | 2019-05-30 | Kabo Tool Company | One-way inertial rotational device |
US10704616B2 (en) * | 2017-11-24 | 2020-07-07 | Kabo Tool Company | One-way inertial rotational device |
US11040270B1 (en) | 2020-04-29 | 2021-06-22 | Dennis Griffin, Sr. | Billiard cue storage assembly |
Also Published As
Publication number | Publication date |
---|---|
JPS419484B1 (de) | 1966-05-20 |
GB988664A (en) | 1965-04-07 |
DE1450108A1 (de) | 1972-02-24 |
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