US3572793A - Hood latch with positive return release lever - Google Patents
Hood latch with positive return release lever Download PDFInfo
- Publication number
- US3572793A US3572793A US3572793DA US3572793A US 3572793 A US3572793 A US 3572793A US 3572793D A US3572793D A US 3572793DA US 3572793 A US3572793 A US 3572793A
- Authority
- US
- United States
- Prior art keywords
- release lever
- plunger
- catch
- opening
- housing
- 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
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/0046—Ratchet mechanisms
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
- E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets
-
- 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
-
- 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
- Y10T292/1062—Spring retracted
-
- 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
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5889—For automotive vehicles
- Y10T70/5903—Hood
Definitions
- the latching as- [51] Int. Cl. E05c 3/02 sembly includes a catch which holds the plunger in a locked [50] Field of Search 292/1 1, 45, position and a release member which releases the catch.
- release lever is positively returned to its initial position by 241, 256, 257 movement of the plunger in and out of the latching assembly.
- This invention relates to an automobile hood latch assembly having a positive return for the release lever.
- One purpose of the invention is a hood latch assembly of the type described which is self-adjusting.
- Another purpose is a hood latch assembly in which movement of the latching plunger in and out of the latching assembly is effective to positively return the release member to its initial position.
- hood latch assembly of the type described in which release thereof is effected from inside the automobile driving compartment.
- Another purpose is a reliably operable compact hood latching assembly of the type described which is both self-adjustingland arranged for positive return of the release member.
- FIG. 1 is a plan view of the hood latch in the unlocked position
- FIG. 2 is a plan view, similar to hood latch in a locked position
- FIG.3 is a section along plane 3-3 of FIG. 1;
- FIG. 4 is a view from the right side of FIG. 1;
- FIG. 5 is a partial plan view of a modified form of the invention.
- FIG. 6 is a partial plan view, similar to FIG. 5, showing yet a further modified form of the invention.
- FIG. 7 is a partial plan view, similar to FIGS. 5 and 6, showing an additional modified form of the invention.
- a plunger is indicated at 10 and may take the form of a generally U-shaped wire, illustrated particularly in FIG. 4.
- the mounting surface of the hood is indicated at I2 in FIG. 4.
- a latching assembly housing 14 conventionally a stamped part, may have mounting brackets 16 and 18 at opposite sides thereof and may have a generally central opening 20 which, as illustrated in FIGS. 1 and 2, receives the plunger 10 to fasten the hood to the automobile body.
- the opening 20 may have an enlarged upper section 22 to correct for any misalignment between the plunger 10 and the opening.
- a catch 24 Pivotally mounted on the housing 14 is a catch 24 which has a ratchet surface 26 and an opening 28.
- the bottom section of the U-shaped plunger 10 In the locked position of FIG. 2 the bottom section of the U-shaped plunger 10 is positioned within the opening 28 and within the opening 20 of the housing.
- An upper portion 30 of the catch 24- overlies the bottom-section of the plunger 10 to provide a positive lock for holding the plunger within the housing.
- a pawl 32 is pivotally mounted on the housing 14 and has a projection 34 which cooperates with the ratchet section 26 of the catch 24 to hold the catch in any adjusted position.
- a coil spring 36 connected at its opposite ends to the pawl 32 and catch 24, normally, urges the pawl into locking relationship with the catch.
- FIG. 1 illustrates the relationship between the pawl and catch when the hood is open, whereas FIG. 2 illustrates the closed or locked position.
- a catch stop 38 is formed out of the housing 14 and is used to prevent the catch from rotating counterclockwise due to the force of the spring 36.
- a release lever 40 is pivotally mounted onthe housing and pivots about the same point 42 as the pawl 32.
- a spring 44 is connected between the housingl4 and the release lever and FIG. I, but showing the LII normally holds the release lever in the full-line position of FIG. 1.
- a stop 43 limits the clockwise movement of the release lever and a stop SI limits counterclockwise movement.
- a wire 46 one end of which will conveniently terminate in an operating handle within the driving compartment of the automobile, is fastened to the lower end of the release lever 40, as at 48.
- the release lever 40 has a projection 50 positioned adjacent the pawl 32 such that movement of the release lever in a com terclockwise direction is effective to rotate the pawl in the same direction to move the projection 34 away from the ratchet surface 26. Normally the release lever will travel approximately 1 inch when releasing the catch. This travel is indicated, in dotted lines, diagrammatically at the bottom of FIG. I. 1
- the release lever 40 may have a pair of cam surfaces indicated at 52 and 54. In the dotted line position of FIG. 1 note that the release lever 40 at least partially blocks the opening 20 in the housing ,l4. When the release lever is in the dotted line position, movement of the plunger 10 in or out of the opening 20 will cause the plunger to strike one of the cam surfaces 52 or 54 to thus move the plunger away from the opening and back to the full-line position of FIG. I.
- the ratchet surface 26 will pass by the projection 34 until such time as the plunger is completely received within the housing opening 20.
- the projection 30 of the catch 24 will then overly the bottom section of the plunger 10 to lock the plunger within the housing.
- the projection 34 will be in one of the notches forming the ratchet surface 26 to hold the catch in the locked position.
- the latch is self-adjusting in that once the plunger has moved into the opening 20 to whatever degree is possible, depending upon the relationship between the hood and the body of the automobile, the catch will be held in that particular adjusted position by the cooperation between the ratchet surface 26 and the projection 34 onthe pawl 32.
- a catch 74 may have a ratchet surface 76 with a number of notches terminating in a somewhat larger notch 78 new the bottom.
- the catch 74 is substantially identical with catch 24.
- a pawl 80 has a pair of closely spaced projections 82 and 84. In the open position of FIG. 5, the projections 87. and 84 are engaged with the lower end of the catch 74. In order to have a locking relationship between the pawl and the catch, the lower projection 84 must at least be positioned within the lower notch 86 in the series of notches making up the ratchet surface 76.
- the two projections on pawl 80 provide a more positive lock than a pawl with a single projection.
- FIG. 6 shows a modified form of the invention in which a catch 60 has a ratchet surface 62 with two spaced notches 64 and 65.
- a pawl 66 has a pair of spaced projections indicated at 68 and 70. There are thus two positions for the catch. One in which the upper projection 68 is in the lower notch 64, and the second in which the lower projection 70 is in the upper notch 65. In the latter case, the lower surface of upper projection 68 will lie against the shoulder 72, at the top of ratchet surface 62.
- the structure in FIG. 6 has only two positions.
- a catch 88 does not have a ratchet surface, but instead has a smooth surface 90, with a shoulder 92 at one end and a somewhat differently angled shoulder 94 at its lower end.
- a pawl 96 has a single projection 98 which may either be in the open position of FIG. 7 or in a fully closed position in which the lower edge of the projection 98 will lie against the shoulder 92.
- the structure of FIG. 7 is not adjustable, but merely has an open and a closed position.
- the positive return of the release lever whenever the hood latch is open.
- the plunger cannot be removed from the latch without striking the release lever and directing it back to its fully open position.
- the release lever will be pivoted in a clockwise direction to insure that the plunger can subsequently be fully locked within the housing on the body of the automobile.
- the positive return of the release member insures that the hood can always be relatched to the body of the automobile, even if the release cable, going back to the drivers compartment of the automobile, should become broken or stuck.
- a plunger positioned to move in and out of said opening
- a cam surface on said release lever positioned for contact by said plunger when said release lever is at least partially across said opening.
- pivotal locking means includes a catch pivotally mounted on said housing and having means thereon for securing said plunger in said opening, and a pawl pivoted on sald housing, with cooperating means on the pawl and catch for locking said catch.
- the structure of claim 4 further characterized in that the cooperating means on the pawl and catch include a ratchet construction on the catch and a locking portion on the pawl, positioned to mate with the ratchet portion on the catch.
- the structure of claim 5 further characterized in that the ratchet and locking portion on the pawl are arranged to variably position the catch relative to the plunger to compensate for difierent relative positions of the plunger and housing.
- said release lever includes means, for effecting pivotal movement of said pawl, upon release movement of said release lever.
- the structure of claim 4 further characterized by and including stops on said housing for positioning said catch and said release lever.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84095769A | 1969-07-11 | 1969-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3572793A true US3572793A (en) | 1971-03-30 |
Family
ID=25283665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3572793D Expired - Lifetime US3572793A (en) | 1969-07-11 | 1969-07-11 | Hood latch with positive return release lever |
Country Status (5)
Country | Link |
---|---|
US (1) | US3572793A (en) |
JP (1) | JPS4947773B1 (en) |
DE (1) | DE2034388A1 (en) |
FR (1) | FR2054997A5 (en) |
GB (1) | GB1248729A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695659A (en) * | 1970-07-27 | 1972-10-03 | Gen Motors Corp | Hood latch assembly |
US3905624A (en) * | 1973-11-30 | 1975-09-16 | Aisin Seiki | Hood latching device for automotive vehicles |
US4635454A (en) * | 1984-11-19 | 1987-01-13 | Avis Industrial Corporation | Latch gear lock assembly |
US5538150A (en) * | 1995-02-01 | 1996-07-23 | Dur-A-Lift, Inc. | Boom latch |
US5618069A (en) * | 1995-07-21 | 1997-04-08 | General Motors Corporation | Hood and decklid latch assemblies |
WO1998004800A1 (en) * | 1996-07-26 | 1998-02-05 | Robert Bosch Gmbh | Motor vehicle door lock, bonnet lock or the like |
US6000737A (en) * | 1997-09-17 | 1999-12-14 | Atoma International Corp. | Loop striker |
US6106033A (en) * | 1997-08-26 | 2000-08-22 | Ewald Witte Gmbh & Co. Kg | Catch-hook arrangement for a front hood or the like on motor vehicles |
US6695360B1 (en) * | 1998-05-12 | 2004-02-24 | Volvo Car Corporation | Locking device and bonnet lock for a vehicle comprising such a locking device |
US20040256861A1 (en) * | 2003-06-09 | 2004-12-23 | Ohi Seisakusho Co.,Ltd. | Hood latch device for motor vehicle |
US20080231059A1 (en) * | 2007-03-23 | 2008-09-25 | Nishio Seimitsu Kabushiki Kaisha | Engagement fitting and manufacturing method of engagement fitting |
US7441814B2 (en) * | 1999-06-04 | 2008-10-28 | Volvo Car Corporation | Vehicle lock device |
US20090235767A1 (en) * | 2008-03-10 | 2009-09-24 | Southco, Inc. | Rotary Pawl Latch |
US20110062726A1 (en) * | 2008-05-14 | 2011-03-17 | Gm Global Technology Operations, Inc. | Lock of a hood of a motor vehicle |
CN101403265B (en) * | 2007-10-02 | 2013-01-30 | 西尾精密株式会社 | Locking metal fitting, and manufacturing method of locking metal fitting |
US20140319848A1 (en) * | 2013-04-29 | 2014-10-30 | GM Global Technology Operations LLC | Latch assembly release effort control, and method thereof |
US20150345186A1 (en) * | 2014-05-30 | 2015-12-03 | Pyeong Hwa Automotive Co., Ltd. | Dual unlocking hood latch system |
US11203888B2 (en) * | 2013-11-22 | 2021-12-21 | Gecom Corporation | Vehicle hood latches |
US20210404224A1 (en) * | 2018-11-12 | 2021-12-30 | Toyoda Iron Works Co., Ltd. | Hood locking device |
US11572721B2 (en) * | 2019-01-17 | 2023-02-07 | Strattec Security Corporation | Latch assembly |
US11933082B2 (en) | 2020-03-23 | 2024-03-19 | Strattec Security Corporation | Cinching latch assembly |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59105901U (en) * | 1982-12-30 | 1984-07-17 | 岩谷産業株式会社 | Oxidation catalyst combustion type gas stove |
DE9006995U1 (en) * | 1990-06-22 | 1990-09-27 | Volvo Car B.V., Helmond | Bonnet lock with safety hook and lock |
DE4239908C1 (en) * | 1992-11-27 | 1994-03-10 | Daimler Benz Ag | Motor vehicle bonnet lock with rotary catch - has single locking hook at distance from inclined centring shaft wall slightly greater than locking-stirrup thickness |
DE19937403A1 (en) * | 1999-08-07 | 2001-02-08 | Bayerische Motoren Werke Ag | Closure for vehicle bonnet has spring-loaded locking pawl engaging in first groove of rotary catch which then engages through projection with locking bar on bonnet in pre-locking position |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508090A (en) * | 1947-01-17 | 1950-05-16 | Ford Motor Co | Hood latch |
US2806727A (en) * | 1955-05-20 | 1957-09-17 | Houdaille Industries Inc | Deck latch |
US2877038A (en) * | 1956-06-21 | 1959-03-10 | Ford Motor Co | Hood latch |
US2924473A (en) * | 1956-07-09 | 1960-02-09 | Chicago Forging & Mfg Co | Safety latch mechanism |
US3378289A (en) * | 1965-10-21 | 1968-04-16 | Modern Metal Products Co | Hood and deck latch |
-
1969
- 1969-07-11 US US3572793D patent/US3572793A/en not_active Expired - Lifetime
-
1970
- 1970-07-09 GB GB3328370A patent/GB1248729A/en not_active Expired
- 1970-07-10 DE DE19702034388 patent/DE2034388A1/en active Pending
- 1970-07-10 FR FR7025671A patent/FR2054997A5/fr not_active Expired
- 1970-07-11 JP JP6055770A patent/JPS4947773B1/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508090A (en) * | 1947-01-17 | 1950-05-16 | Ford Motor Co | Hood latch |
US2806727A (en) * | 1955-05-20 | 1957-09-17 | Houdaille Industries Inc | Deck latch |
US2877038A (en) * | 1956-06-21 | 1959-03-10 | Ford Motor Co | Hood latch |
US2924473A (en) * | 1956-07-09 | 1960-02-09 | Chicago Forging & Mfg Co | Safety latch mechanism |
US3378289A (en) * | 1965-10-21 | 1968-04-16 | Modern Metal Products Co | Hood and deck latch |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695659A (en) * | 1970-07-27 | 1972-10-03 | Gen Motors Corp | Hood latch assembly |
US3905624A (en) * | 1973-11-30 | 1975-09-16 | Aisin Seiki | Hood latching device for automotive vehicles |
US4635454A (en) * | 1984-11-19 | 1987-01-13 | Avis Industrial Corporation | Latch gear lock assembly |
US5538150A (en) * | 1995-02-01 | 1996-07-23 | Dur-A-Lift, Inc. | Boom latch |
US5618069A (en) * | 1995-07-21 | 1997-04-08 | General Motors Corporation | Hood and decklid latch assemblies |
US6113161A (en) * | 1996-07-26 | 2000-09-05 | Robert Bosch Gmbh | Motor vehicle door lock, bonnet lock or the like |
WO1998004800A1 (en) * | 1996-07-26 | 1998-02-05 | Robert Bosch Gmbh | Motor vehicle door lock, bonnet lock or the like |
US6106033A (en) * | 1997-08-26 | 2000-08-22 | Ewald Witte Gmbh & Co. Kg | Catch-hook arrangement for a front hood or the like on motor vehicles |
US6000737A (en) * | 1997-09-17 | 1999-12-14 | Atoma International Corp. | Loop striker |
US6695360B1 (en) * | 1998-05-12 | 2004-02-24 | Volvo Car Corporation | Locking device and bonnet lock for a vehicle comprising such a locking device |
US7441814B2 (en) * | 1999-06-04 | 2008-10-28 | Volvo Car Corporation | Vehicle lock device |
US20040256861A1 (en) * | 2003-06-09 | 2004-12-23 | Ohi Seisakusho Co.,Ltd. | Hood latch device for motor vehicle |
US7261337B2 (en) * | 2003-06-09 | 2007-08-28 | Ohi Seisakusho Co., Ltd. | Hood latch device for motor vehicle |
US20080231059A1 (en) * | 2007-03-23 | 2008-09-25 | Nishio Seimitsu Kabushiki Kaisha | Engagement fitting and manufacturing method of engagement fitting |
US7854452B2 (en) * | 2007-03-23 | 2010-12-21 | Nishio Seimitsu Kabushiki Kaisha | Engagement fitting and manufacturing method of engagement fitting |
CN101403265B (en) * | 2007-10-02 | 2013-01-30 | 西尾精密株式会社 | Locking metal fitting, and manufacturing method of locking metal fitting |
US8496275B2 (en) | 2008-03-10 | 2013-07-30 | Southco, Inc. | Rotary pawl latch |
US20090235767A1 (en) * | 2008-03-10 | 2009-09-24 | Southco, Inc. | Rotary Pawl Latch |
US9085922B2 (en) * | 2008-05-14 | 2015-07-21 | Gm Global Technology Operations | Lock of a hood of a motor vehicle |
US20110062726A1 (en) * | 2008-05-14 | 2011-03-17 | Gm Global Technology Operations, Inc. | Lock of a hood of a motor vehicle |
US20140319848A1 (en) * | 2013-04-29 | 2014-10-30 | GM Global Technology Operations LLC | Latch assembly release effort control, and method thereof |
US11203888B2 (en) * | 2013-11-22 | 2021-12-21 | Gecom Corporation | Vehicle hood latches |
US20150345186A1 (en) * | 2014-05-30 | 2015-12-03 | Pyeong Hwa Automotive Co., Ltd. | Dual unlocking hood latch system |
US10273726B2 (en) * | 2014-05-30 | 2019-04-30 | Pyeong Hwa Automotive Co., Ltd | Dual unlocking hood latch system |
US20210404224A1 (en) * | 2018-11-12 | 2021-12-30 | Toyoda Iron Works Co., Ltd. | Hood locking device |
US11572721B2 (en) * | 2019-01-17 | 2023-02-07 | Strattec Security Corporation | Latch assembly |
US11933082B2 (en) | 2020-03-23 | 2024-03-19 | Strattec Security Corporation | Cinching latch assembly |
Also Published As
Publication number | Publication date |
---|---|
JPS4947773B1 (en) | 1974-12-18 |
FR2054997A5 (en) | 1971-05-07 |
DE2034388A1 (en) | 1971-01-14 |
GB1248729A (en) | 1971-10-06 |
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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 |