US3844593A - Vehicle door latch with forked latching rotors - Google Patents
Vehicle door latch with forked latching rotors Download PDFInfo
- Publication number
- US3844593A US3844593A US35501773A US3844593A US 3844593 A US3844593 A US 3844593A US 35501773 A US35501773 A US 35501773A US 3844593 A US3844593 A US 3844593A
- Authority
- US
- United States
- Prior art keywords
- rotor
- pawl
- latched position
- latch
- door
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
- E05B85/24—Bolts rotating about an axis
- E05B85/247—Bolts rotating about an axis about a vertical axis
-
- 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
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/0801—Multiple
- Y10T292/0848—Swinging
- Y10T292/0849—Operating means
- Y10T292/0853—Link and lever
-
- 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
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1044—Multiple head
- Y10T292/1045—Operating means
- Y10T292/1047—Closure
Definitions
- ABSTRACT (3
- a p includes a detent which hooks against one g [58] Fie'ld DIG 26 of a lower forked latching rotor to hold the rotor in a 292mm 27 24/30 secondary latched position and hooks against the I 24 241 other leg of the rotor to hold the rotor in a fully v latched position.
- a second detent on the pawl blocks against an upper latching rotor to hold the latter in its [56] UNITE S S FX?ES SZ TENTS fully and secondary latched positions. 2,700,293 3 Claims, 9 Drawing Figures l/l955 Sigel et al.
- This invention relates to a latch for vehicle doors and, more particularly, to a relatively high-strength latch with a forked latching rotor having a leg whose free end is normally engaged by a pawl to hold the rotor in a fully latched position and to prevent the rotor from turning to an unlatched position.
- the rotor turns through a secondary latched position and, if held in the latter position, the rotor keeps the door in a partially closed condition.
- Prior latches of the same general type as under consideration herein are disclosed in US. Pat. Nos. 2,987,336; 3,432,198 and 3,545,800.
- the general aim of the present invention is to provide a latch of the above character which is simpler in construction than prior latches of the same general type.
- a more detailed object is to achieve this end by providing .a pawl which not only engages one leg of the rotor to
- FIG. 1 is a fragmentary cross-section taken horizontally through the door of a vehicle equipped with a new and improved latch embodying the novel features of the present invention.
- FIG. 2 is a fragmentary cross-section taken substantially along the line 2-2 of FIG. 1.
- FIGS. 3 and 4 are elevational views of the latch as seen in the direction of the arrows 33 and 4-4, respectively, of FIG. I.
- FIG. 5 is a cross-section taken substantially along the line 5-5 of FIG. I and showing the latch in a fully latched condition.
- FIGS. 6 and 7 are views similar to FIG. 5 but showing the latch in its secondary latched and unlatched conditions, respectively.
- FIG. 8 is a fragmentary cross-section taken substantially along the line 8-8 of FIG. 5.
- FIG. 9 is a perspective view of the pawl.
- each rotor is a fork-like element which is formed with a striker-receiving recess or throat 17 (FIG. 7), the latter being defined between elongated inner and outer legs I9 and 20.
- the latching rotors l3 and 14 are mounted on a support formed by a plastic case 21 adapted to be fastened to the outside of the end panel 23 of the door 11 by bolts 24, the rear face of the case being covered by a plate 25 which is fastened to the case by the bolts.
- the rotor 13 is journaled to turn about a horizontal pin 26 (FIGS. 2 and 5) supported by the case while the rotor '14 is disposed'in overlapping side-by-side relation with the rotor 13 and is journaled to turn about a similar pin 27 located directly above the pin 26.
- the two pins are located on opposite sides of an elongated recess 29 (FIG. 5) which is formed in the case and the plate to accommodate the striker I5 when the door is swung closed.
- a pawl 33 which is pivoted to turn about a pin 34 supported by the case 21, the pin 34 paralleling the upper rotor pin 27 and being located just above and just outwardly of the latter pin.
- an elongated finger 35 (FIGS. 1 and 9) which projects through the case and through an opening in the end panel 23 of the door so as to extend into the interior of v the door.
- Tripping of the pawl 33 to unlatch the door II from the outside thereof is effected by a contactor 37 (FIG. 4) which is pivoted on a flange 39 at 40.
- the flange lies along the inside of the end panel 23 and is fastened to the latter by the same bolts 24 used to hold the case 21 on the door.
- the contactor is formed with a slot 41 (FIG. 4) which receives the finger 35 of the pawl 33 and, when the contactor is swung counterclockwise by an outside actuator such as a push button (not shown), the lower edge of the slot engages and lifts the finger 35 to swing the pawl clockwise about the pin 34 thereby to trip the pawl and enable opening of the door.
- the pawl is urged in the opposite or counterclockwise direction by a coiled compression spring 43 (FIG. 5) seated against the end of an opening 44 in the plastic case 21 and held by a tab 45 on the upper edge of the pawl.
- a locking lever 46 (FIG. 3) is pivoted at 47 on a flange 49 formed integrally with and at a right angle to the flange 39 and extending along the inside panel 50 (FIG. 1) of the door 11.
- a lug 51 on the upper end of the locking lever overlies and engages the upper edge of the contactor 37 to prevent the latter from being swung counterclockwise and tripping the pawl 33. Swinging of the locking lever between its locked and unlocked positions may be effected from the inside of the door by a garnish button-actuated lever 53 (FIG.
- the locking lever 46 also may be swung to its unlocked position by clockwise (FIG. 3) swinging of a lever 57 pivoted on the flange 49 at 59 and adapted to be turned by the remote actuator (not shown) on the inside of the door, the lever 57 being formed with an arm 61 for engaging the upper end portion of the locking lever to move the latter to its unlocked position.
- the arm 61 When the lever 57 is turned clockwise by the remote actuator, the arm 61 first turns the locking lever 46 to its unlocked position if the locking lever has been set in its locked position. Thereafter, a second arm 63 moves beneath and swings the contactor 37 counterclockwise to lift the finger 35 of the pawl 33 and effect unlatching of the door 10.
- the door may be locked from the outside without a key by swinging the locking lever 46 to its locked position with the garnish button-actuated lever 53 when the door is open and thereafter by simply swinging the door shut.
- the inner end portion of the pawl is formed with a downwardly projecting hook or detent 66.
- the detent 66 hooks against a shoulder 67 which is formed on the inner edge of the inner leg 19 of the lower rotor at the free end of such leg.
- the detent 66 hooking the shoulder 67, the lower rotor is held in its fully latched position and is prevented from turning toward its unlatched position.
- the same pawl 33 which hooks the inner leg 19 of the lower rotor 13 to hold the latter in its fully latched position also engages the outer leg of the rotor to hold the rotor in its secondary latched position.
- the outer leg 20 of the rotor first engages the detent 66 on the pawl 33 and earns the latter in a clockwise direction about the pin 34.
- the spring 44 swings the pawl reversely to cause the detent to move downwardly alongside the inner edge of the leg (see FIG.
- the detent 66 engages the inner edge of the leg 20 near the free end thereof and holds the rotor 13 in the secondary latched position shown in FIG. 6 so as to prevent the rotor from turning counterclockwise toward the unlatched position.
- the same pawl 33 first engages the outer leg 20 of the lower rotor 13 to hold the rotor in its secondary latched position and then engages the inner leg 19 of the rotor to hold the rotor in its fully latched position thereby to provide a high strength latch which is comparatively simple in construction as a result of the use of a single pawl to hold the rotor in both its secondary and fully latched positions.
- an additional detent 70 is provided on the same pawl 33 in order to hold the upper latching rotor 14 securely in its fully and secondary latched positions.
- the additional detent 70 simply comprises a small buttonlike member located near the outer end portion of the main pawl 33 and fitted over the pin 34.
- a short finger 71 (FIG. 5) protruding from the detent 70 projects snugly into a hole 73 (FIG. 9) in the pawl 33 so as to turn in unison with the latter.
- the detent 70 is offset from the detent 66 and is disposed in the same vertical plane as the upper rotor 14.
- a lug 74 formed integrally with the inner end of the detent 70 blocks against a shoulder 75 on the upper edge of the upper rotor and prevents movement of the rotor toward its unlatched position if an opening force is applied to the door 11.
- the lug 74 blocks against a shoulder 76 as shown in FIG. 5 to prevent turning of the rotor from such position, the shoulder 76 being formed on the rotor and being spaced angularly from the shoulder 75.
- the spring 45 which urges the pawl 33 counterclockwise is used also to bias the rotors l3 and 14 toward their unlatched positions thereby to eliminate the need of employing separate springs for biasing the rotors.
- the striker 15 causes the rotors to turn slightly toward their unlatched positions as the door 11 is initially opened. If the pawl thereafter is immediately allowed to return to its lowered position, a cam surface 77 on the lower edge of the pawl adjacent the detent 66 engages the upper edge of the inner leg 19 of the lower rotor 13.
- the spring 45 acting on the pawl causes the surface 77 to bear against the upper edge of the leg 19 to cam the lower rotor to its secondary latched position shown in FIG. 6.
- the lower edge of the lug 74 bears against the upper edge of the shoulder 76 to bias and cam the upper rotor 14 to its secondary latched position.
- the cam surface 77 upon subsequent lowering of the pawl, engages the upper edge of the outer leg 20 of the lower rotor 13 and cams the latthe upper rotor to its unlatched position and then to yieldably hold the upper rotor in the unlatched position. Accordingly, the return spring 45 for the pawl 33 helps turn both rotors toward and holds the rotors in their unlatched positions so that additional springs for biasing the rotors are not required.
- a latch adapted to coact with a striker to hold a vehicle door in a closed position, said latch comprising a support; a forked latching rotor mounted on said support to turn about a first axis from an unlatched position to a secondary latched position and then to a fully latched position, said rotor having first and second legs extending transversely of said axis and defining a single throat which receives said striker in both the secondary latched position and the fully latched position of said rotor, and means mounted on said support to pivot about a second and parallel axis and sequentially engageable with said first and second legs to hold said rotor in said secondary and said fully latched positions, respectively, as the rotor is turned from said unlatched position.
- a latch as defined in claim 2 further including a spring urging said pawl into engagement with said rotor, said pawl having a surface located adjacent said hook for engaging said first leg and yieldably camming said rotor toward said unlatched position as the rotor turns from said fully latched position.
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US35501773 US3844593A (en) | 1971-11-05 | 1973-04-27 | Vehicle door latch with forked latching rotors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19594371A | 1971-11-05 | 1971-11-05 | |
US35501773 US3844593A (en) | 1971-11-05 | 1973-04-27 | Vehicle door latch with forked latching rotors |
Publications (1)
Publication Number | Publication Date |
---|---|
US3844593A true US3844593A (en) | 1974-10-29 |
Family
ID=26891498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US35501773 Expired - Lifetime US3844593A (en) | 1971-11-05 | 1973-04-27 | Vehicle door latch with forked latching rotors |
Country Status (1)
Country | Link |
---|---|
US (1) | US3844593A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941411A (en) * | 1974-10-29 | 1976-03-02 | United States Steel Corporation | Door lock assembly |
US4538845A (en) * | 1982-05-31 | 1985-09-03 | Mitsui Kinzoku Kogyo K. K. | Automobile locking apparatus |
US4575138A (en) * | 1982-09-22 | 1986-03-11 | Ohi Seisakusho Co., Ltd. | Door latching device |
US4848810A (en) * | 1984-01-20 | 1989-07-18 | Societe De Fabrication D'instruments De Mesure | Automatic or manual opening device for the door of a safety equipment box |
US4869536A (en) * | 1987-07-29 | 1989-09-26 | Kiekert Gmbh & Co. Kommanditgesellschaft | Vehicle door latch with secondary fork |
US4896906A (en) * | 1987-05-27 | 1990-01-30 | The Eastern Company | Vehicle door lock system |
US4907831A (en) * | 1987-03-31 | 1990-03-13 | Fiat Auto S.P.A. | Catch device with automatic clearance compensation, in particular for vehicle door locks |
US4911487A (en) * | 1986-05-12 | 1990-03-27 | Cleveland Hardware & Forging Co. | Rotary paddle latch |
US4971373A (en) * | 1988-09-26 | 1990-11-20 | Mitsui Kinzoku Kogyo Kabushiki Kaisha | Noise suppressing device in lock device for vehicle |
US5117665A (en) * | 1987-05-27 | 1992-06-02 | Swan Jye P | Vehicle door lock system |
US20040178643A1 (en) * | 2003-03-11 | 2004-09-16 | Tri/Mark Corporation | Latch assembly for a movable closure element |
US20080252083A1 (en) * | 2006-11-20 | 2008-10-16 | Southco, Inc. | Electromechanical rotary pawl latch |
US20110227351A1 (en) * | 2010-03-16 | 2011-09-22 | Southco, Inc. | Electromechanical Compression Latch |
US20140035293A1 (en) * | 2012-08-01 | 2014-02-06 | The Eastern Company | Latch Assembly |
US20190256003A1 (en) * | 2018-02-20 | 2019-08-22 | Nissan North America, Inc. | Vehicle body structure |
US11118381B2 (en) * | 2018-03-07 | 2021-09-14 | GM Global Technology Operations LLC | Dual-pull latch assemblies for compartment closure assemblies of motor vehicles |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2700293A (en) * | 1950-03-27 | 1955-01-25 | Chicago Forging & Mfg Co | Lock for the closures of automobile rear compartments and the like |
US2863200A (en) * | 1954-09-14 | 1958-12-09 | Miller Joshua | Latch ejection type, quick attachment and release |
US3232656A (en) * | 1961-05-19 | 1966-02-01 | Gen Motors Corp | Door latches for automobile doors |
US3285645A (en) * | 1964-08-14 | 1966-11-15 | John H Roethel | Door lock |
US3334935A (en) * | 1965-07-02 | 1967-08-08 | Chrysler Corp | Door latch |
US3432198A (en) * | 1967-06-27 | 1969-03-11 | Ford Motor Co | Latch mechanism |
US3561807A (en) * | 1968-10-22 | 1971-02-09 | Atwood Vacuum Machine Co | Free-wheeling latch for vehicle doors |
-
1973
- 1973-04-27 US US35501773 patent/US3844593A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2700293A (en) * | 1950-03-27 | 1955-01-25 | Chicago Forging & Mfg Co | Lock for the closures of automobile rear compartments and the like |
US2863200A (en) * | 1954-09-14 | 1958-12-09 | Miller Joshua | Latch ejection type, quick attachment and release |
US3232656A (en) * | 1961-05-19 | 1966-02-01 | Gen Motors Corp | Door latches for automobile doors |
US3285645A (en) * | 1964-08-14 | 1966-11-15 | John H Roethel | Door lock |
US3334935A (en) * | 1965-07-02 | 1967-08-08 | Chrysler Corp | Door latch |
US3432198A (en) * | 1967-06-27 | 1969-03-11 | Ford Motor Co | Latch mechanism |
US3561807A (en) * | 1968-10-22 | 1971-02-09 | Atwood Vacuum Machine Co | Free-wheeling latch for vehicle doors |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941411A (en) * | 1974-10-29 | 1976-03-02 | United States Steel Corporation | Door lock assembly |
US4538845A (en) * | 1982-05-31 | 1985-09-03 | Mitsui Kinzoku Kogyo K. K. | Automobile locking apparatus |
US4575138A (en) * | 1982-09-22 | 1986-03-11 | Ohi Seisakusho Co., Ltd. | Door latching device |
US4848810A (en) * | 1984-01-20 | 1989-07-18 | Societe De Fabrication D'instruments De Mesure | Automatic or manual opening device for the door of a safety equipment box |
US4911487A (en) * | 1986-05-12 | 1990-03-27 | Cleveland Hardware & Forging Co. | Rotary paddle latch |
US4907831A (en) * | 1987-03-31 | 1990-03-13 | Fiat Auto S.P.A. | Catch device with automatic clearance compensation, in particular for vehicle door locks |
US4896906A (en) * | 1987-05-27 | 1990-01-30 | The Eastern Company | Vehicle door lock system |
US5117665A (en) * | 1987-05-27 | 1992-06-02 | Swan Jye P | Vehicle door lock system |
US4869536A (en) * | 1987-07-29 | 1989-09-26 | Kiekert Gmbh & Co. Kommanditgesellschaft | Vehicle door latch with secondary fork |
US4971373A (en) * | 1988-09-26 | 1990-11-20 | Mitsui Kinzoku Kogyo Kabushiki Kaisha | Noise suppressing device in lock device for vehicle |
US7338097B2 (en) | 2003-03-11 | 2008-03-04 | Tri/Mark Corporation | Latch assembly for a movable closure element |
US20040178643A1 (en) * | 2003-03-11 | 2004-09-16 | Tri/Mark Corporation | Latch assembly for a movable closure element |
GB2401145A (en) * | 2003-04-23 | 2004-11-03 | Tri Mark Corp | Latch assembly for moveable closure |
US20080252083A1 (en) * | 2006-11-20 | 2008-10-16 | Southco, Inc. | Electromechanical rotary pawl latch |
US7766397B2 (en) | 2006-11-20 | 2010-08-03 | Southco, Inc. | Electromechanical rotary pawl latch |
US8672368B2 (en) | 2010-03-16 | 2014-03-18 | Southco, Inc. | Electromechanical compression latch |
US20110227351A1 (en) * | 2010-03-16 | 2011-09-22 | Southco, Inc. | Electromechanical Compression Latch |
US20140035293A1 (en) * | 2012-08-01 | 2014-02-06 | The Eastern Company | Latch Assembly |
US9145710B2 (en) * | 2012-08-01 | 2015-09-29 | The Eastern Company | Latch assembly |
US20190256003A1 (en) * | 2018-02-20 | 2019-08-22 | Nissan North America, Inc. | Vehicle body structure |
US20190256006A1 (en) * | 2018-02-20 | 2019-08-22 | Nissan North America, Inc. | Vehicle body structure |
US10632928B2 (en) * | 2018-02-20 | 2020-04-28 | Nissan North America, Inc. | Vehicle body structure |
US10703287B2 (en) * | 2018-02-20 | 2020-07-07 | Nissan North America, Inc. | Vehicle body structure |
US11118381B2 (en) * | 2018-03-07 | 2021-09-14 | GM Global Technology Operations LLC | Dual-pull latch assemblies for compartment closure assemblies of motor vehicles |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT, INC., 200 SOUTH WACKER Free format text: SECURITY INTEREST;ASSIGNOR:AVM ACQUISITION CO., 1400 EDDY AVE. ROCKFORD, ILL 61101;REEL/FRAME:004379/0268 Effective date: 19850225 |
|
AS | Assignment |
Owner name: AVM ACQUISITION CO., A CORP OF IL Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ATWOOD VACUUM MACHINE COMPANY;REEL/FRAME:004371/0147 Effective date: 19850223 |
|
AS | Assignment |
Owner name: ATWOOD INDUSTRIES, INC. Free format text: CHANGE OF NAME;ASSIGNOR:ATWOOD VACUUM MACHINE COMPANY;REEL/FRAME:004672/0760 Effective date: 19861106 |
|
AS | Assignment |
Owner name: ATWOOD VACUUM MACHINE COMPANY, FORMERLY AVM ACQUIS Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP INDUSTRIAL CREDIT, INC.;REEL/FRAME:004682/0985 Effective date: 19870224 |
|
AS | Assignment |
Owner name: HARRIS TRUST AND SAVINGS BANK, ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:ATWOOD INDUSTRIES INC., A CORP. OF IL;REEL/FRAME:005736/0028 Effective date: 19900629 |