US3848910A - Door lock, especially for motor vehicle doors - Google Patents
Door lock, especially for motor vehicle doors Download PDFInfo
- Publication number
- US3848910A US3848910A US29927672A US3848910A US 3848910 A US3848910 A US 3848910A US 29927672 A US29927672 A US 29927672A US 3848910 A US3848910 A US 3848910A
- Authority
- US
- United States
- Prior art keywords
- locking
- lever means
- lock according
- latching
- lever
- 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
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/26—Automatic undogging or reconnecting
-
- 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 A locking mechanism for doors or the like, especially for motor vehicle doors which contains a latching element engaging during the closing of the door in a closure member; the closed position of the latching element is locked by a locking pawl which is disengageable from the latching element by a disengaging lever; a safety lever is coordinated to the latching pawl for purposes of blocking its disengaging movement or interrupting its connection while a forced locking lever isconnected with the safety lever and includes a part following the latching pawl during actuation of the safety lever.
- the present invention relates to a lock for doors or the like, especially for motor vehicle doors, which includes a locking or latching element engaging during the closing into a closure part of the lock mechanism, the locked position of the locking or latching element being ensured by a locking pawl which is disengageable from the locking element by a disengaging lever, to which is coordinated a safety lever for blocking the disengaging movement or for the interruption of its connection to the locking pawl.
- the present invention is concerned with the task to so construct a lock of the aforementioned type that the locking pawl can be brought into its prescribed end position with an accurately closed door or the like without renewed opening of the lock.
- the present invention essentially consists in that a forced locking lever, i.e., a checking lever forcibly actuated, is connected with the safety lever, which includes a portion following the latching pawl during the actuation of the safety lever. It is achieved by this construction that the locking or latching pawl is forciblybrought into its prescribed end position with an accurately closed door or the like, i.e., when the locking element has reached its end position.
- the term forced locking lever is used herein to describe the checking lever of the present invention which is forcibly actuated by the mechanism.
- the forced locking lever is provided with a nose portion which is movable approximately radially to an axis of rotation of a rotatable locking or latching element and to which is coordinated an extension of the locking pawl.
- the forced locking lever is coupled with the locking or latching element by means of a follower connection and is guided in a guide means which permits its locking movement only in one end position corresponding to the end position of the locking element. It becomes possible by this construction to examine with the aid of a safety or locking test whether the door or like is accurately closed, i.e., whether the locking or latching element has assumed its prescribed end position since only in this position a locking is possible with a simultaneously forciblyor necessarily following, complete engagement of the locking pawl.
- the forced locking lever is pivotal about an axis of rotation which is displaceable together with the forced locking lever approximately radially to the axis of rotation of the locking or latching element.
- the movement taking place together with the movement of the locking element is separated from the forced locking movement.
- the forced locking lever is guided at a fixed pin or the like by means of a template or cam surface concentric to its axis of rotation, which is provided with a radial aperture at its end abutting at the pin or the like in the end position corresponding to the closed position of the locking element.
- it is not possible to actuate the safety lever as longas the locking or latching element has not assumed its end position since the locking movement is possible only within the area of the radial aperture.
- the safety lever can be actuated also with'an opened door or the like
- a structurally advantageous construction of the present invention is obtained if the safety lever is connected with the disengaging lever and/or the locking pawl by meansof one or several intermediate levers, of which one carries eccentrically to its axis of rotation the pivot axis of the forced locking lever.
- the displacement movement of the axis of rotation of the forced locking lever, necessary for the forced locking action, can be attained in a simple manner by this arrangement.
- the forced locking lever is spring-loaded with a spring in the direction of the closing movement of the locking or latching element and includes a control edge, by means of which it abuts at a pin or the like of the locking or latching element.
- the forced locking lever automatically senses whether the locking or latching element has or has not assumed its accurate closure or locking position.
- Another object of the present invention resides in a door lock, especially for motor vehicles, in which the danger of an inadvertent opening of the door is farreachingly minimized.
- a further object of the present invention resides in a door lock for motor vehicles in which the likelihood of a door that opens as a result of decelerations or forces occurring in an accident, is obviated
- a still further object of the present invention resides in a door lock for motor vehicle doors in which the locking pawl can be brought into its prescribed end position without renewed opening of the lock and door.
- Another object of the present invention resides in a door lock for motor vehicles which is simple in construction, requires relatively few additional parts, and offers great safety against inadvertent opening of the door.
- FIG. '1 is an elevational view of a tap lock constructed according to the present invention in its closed position
- FIG. 2 is a cross-sectional view taken along line IIII of FIG. 1;
- FIG. 3 is an elevational view of the tap lock of FIG. 1 in the closed position and with engaged safety mechanisms;
- FIG. 4 is a cross-sectional view, taken along line IVIV of FIG. 3;
- FIG. 5 is an elevational view of the tap lock in accordance with the present invention in an intermediate position
- FIG. 6 is an elevational view of the tap lock in accordance with the present invention in the opened end position.
- a tap lock or pin-type lock which is secured in a motor vehicle door. It consists of a housing 1 which is provided with an. aperture or recess 2 (FIGS. 2 and 4) in which is arranged a conical pin 3.
- a conical pin 3 By means of this conical pin 3, the lock is engaged during the closing of the door in a closure or female member in the form of an eye or lug-( not shown) of conventional type which is secured at the body, for example, at a door column.
- the eye or lug of the lock mechanism is additionally provided with two bolts (not shown) disposed transversely to its bore, as is known in the art, into which engages during the closing a rotary latch 4 serving as locking element and provided with teeth generally designated by reference numeral 5.
- rotary latch 4 projecting into the aperture 2 of the housing 1 engages with its teeth 5 the bolts of the closure lug, by means of which it is rotated about its pivot pin 6 with the complete closing of the door from the position illustrated in FIG. 6 into the end position illustrated in FIG. 1.
- the rotary latch 4 is secured or held fast by a locking pawl generally designated by reference numeral 7 which is pivotally secured at the housing 1 about a pivot pin 8.
- the locking paw] 7 engages in theclosed or locked position with a nose-or cam portion 9 thereof into a main detent 10 of the rotary latch 4.
- a pre-detent 11 is additionally provided at the rotary latch 4 into which engages the cam portion 9 of the locking pawl 7 if only the first part of the teeth 5 of the rotary latch 4 engages with the corresponding bolts of the closure lug (notillustrated) as shown in the position illustrated in FIG. 5.
- the locking pawl 7 is displaced together with its cam or shoulder portion 9 toward the rotary latch 4 by a draw-spring 12 whose other spring end is secured at an extension of the housing 1.
- the cam or nose portion 9 of the locking pawl 7 is adapted to be pivoted away from the circumference of the rotary latch 4 against the effect of the draw-spring 12 by means of a disengaging lever generally designated by reference numeral 13 which is pivotally sccured at the housing 1 about a pivot pin 14.
- a bolt 15 (FIG. 1) serves for purposes of connecting the disengaging lever 13 and the locking pawl 7 which are arranged in different planes, whereby the bolt 15 is disposed perpendicular to these planes-
- the bolt 15 is carried by an intermediate lever 16 (FIG. 1) which is pivotally supported in a further intermediate lever 17 approximately above the pivot pin 14 of the disengaging lever 13.
- the intermediate lever 17 is pivotally secured at the housing 1 about a pivot pin 18.
- the bolt 15 is guided in a slot guidance 19 of the disengaging lever 13. If the intermediate lever 17 is rotated in the clockwise direction, then the bolt 15 travels in the slot guid ance 19 of the disengaging lever 13 in the downward direction as viewed in the drawing, whereby the connection between the disengaging lever 13 and the locking pawl 7 is interrupted. The locking pawl 7 is thereafter not actuatable by the disengaging lever 13 so that it is held constantly in the locked position by the drawspring 12.
- the rotary latch 4, the locking pawl 7, the disengaging lever 13 and the intermediate levers I6 and 17 are all disposed in parallel planes so that also their pivot axes 6, 8, l4 and 18 extend parallel to one another. These planes are so selected and the levers are in part additionally cranked or offset in such a manner that they do not mutually interfere with one another.
- the intermediate lever 17 is pivotal about its pivot axis 18 by means of a safety lever generally designated by reference numeral 20 (FIGS. 2 and 4).
- the safety lever 20 is disposed in a plane which extends perpendicularly to the planes, in which are disposed the remaining levers.
- the safety lever 20 is pivotally secured at the housing I by means of a pivot pin 21, whereby the pivot pin 21 is disposed parallel to the pin 3 of the lock.
- a dead-center point spring 22 is mounted between the safety lever 20 and the housing 1 so that the safety lever 20 is pivotal only into two end positions in which the pin 15 of the intermediate lever 16 is disposed either in the position between the free end of the locking pawl 7 and the slot guidance 19 of the disengaging lever 13 as shown in FIG.
- the safety lever 20 is provided with two extensions 23 and 24 mutually offset by 90. Either a knob (not shown) vertically movable up or down in the direction of the double arrow 25 (FIG. 2) is connected with the extensions 23 ora horizontally to and fro movable linkage (not shown) is connected with the extension 24. The linkage, in its turn, is again adjustable by way of a vertically reciprocable knob.
- the safety lever 20 is additionally actuatable by means of a key which engages by way of a cylinder lock or the like in a conventional tumbler 26 that is rotatably supported in the housing 1.
- A- pin 27 is secured at the tumbler 26 which engages in a slot guidance 28 of the safety lever 20 and is able to take along the intermediate lever 17.
- the intermediate lever 17 extends with its free end through an aperture 29 of the safety lever 20.
- a forced locking lever generally designated by reference numeral 31 is additionally pivotally secured at the intermediate lever 17 eccentrically to its pivot pin 18 about a pivot pin 30.
- the forced locking lever 31 is displaceable together with this pivot pin 30 approximately radially to the pivot pin 6 of the rotary latch 4 by pivoting the intermediate lever 17 by way of the safety lever 20.
- the pivoting of the forced locking lever 31 about its pivot axis 30 takes place in dependence on the movement of the rotary latch 4. For that purpose, a follower connection is provided between these two parts.
- the rotary latch 4 is provided with a pin 33 extending through a slot 32 of the housing 1, which additionally servesfor the mounting of the draw-spring 34 whose other end is suspended in the disengaging lever 13 and whose force serves as return force for returning the rotary latch 4 into its opened position.
- a control edge 35- of the forced locking lever 31 is coordinated to the pin 33.
- the forced locking lever 31 includes a template or cam surface 36 whose edge extending concentrically to the pivot pin 30 is guided at a pin 37 that is fixedly mounted at the stationary housing 1 so as to be immovable.
- Apertures 38 and 39 extending radially to the pivot pin 30 of the forced locking lever 31 adjoin the template or cam surface 36 at both ends thereof.
- the forced locking lever 31 and the intermediate lever 17 are provided with extensions 40 and 41 into which is suspended a draw-spring 42 which springloads the forced locking lever 31 in the direction toward the pin 33.
- a locking nose portion 43 is provided at the forced locking lever 31 within the area of the locking pawl 7, which is coordinated to an abutment 44 of the locking pawl 7 extended beyond the cam 9.'The locking nose portion 43 moves during the pivoting of the forced locking lever 31 in the direction toward the abutment 44 of the locking pawl 7 and moves the same with its cam 9 so far until it reaches its end position predetermined by the main detent 10.
- This type of forced or positive g'uidance is possible only in the end position illustrated in FIGS. 1 and 3 since both the length of the locking nose portion 43 as also the length of the abutment 44 are limited.
- the aperture 38 at the end of the control cam or template 36 of the forced locking lever 31 serves the purpose that the lock can be locked by actuation of the safety lever 20 by way of a knob or the like also with an opened door or with an opened lock wherebythe locking remains preserved after the closing of the door.
- the pin 37 engages in the aperture 38 when the safety lever 20 is actuated in the opened position of the locking element, i.e., of the rotary latch 4 illustrated in FIG. 6.
- no forced locking of the locking pawl 7 takes place by means of the rotary latch 4 since the locking nose portion 43 and the abutment 44 of the locking pawl 7 cannot come in contact with one another.
- the type of construction of the lock mechanism described hereinabove is advantageously applicable also ing pawl and the disengaging lever which are not uncoupled or disengaged by engagement of the safety locking means but are blocked thereby.
- the construc- 7 tion of the lock according to the present invention additionally offers the advantage with use in motor vehicle doors that the danger of an automatic opening as a result of high decelerations occurring in an accident is far-reachingly precluded. This is in part due to the fact that the forced locking lever 31 with its locking nose portion 43 additionally locks the locking pawl 7 whereas, in its turn, it is secured or locked at the pin 37 in the aperture 39 within the control cam or template 36.
- the-levers all, constructed as double-armed levers, by a corresponding dimensioning or by the mounting of additional weights or the like in such a manner that their center of gravity is located at least approximately in t their respective pivot axes so that also in case of high decelerations, no angular momentum or torque can occur which displaces the levers out of their closing or locking positions.
- a lock for doors and the like comprising:
- a locking pawl means locking said latching means in the closed position, said locking pawl means being disengageable from the latching means by a disengaging lever means,
- safety lever means coordinated to said disengaging lever means for preventing the release of said locking pawl means
- a locking lever means for forcibly guiding said locking pawl means into the locked position and for checking the closed position of said latching means, said locking lever means being actuated by said safty lever means.
- a lock with a rotatable latching means characterized in that the locking lever means includes a nose portion which is movable approximately radially to the pivot axis of the rotatable latching means and in that an abutment of the locking pawl means is coordinated to said nose portion.
- a lock according to claim 2 characterized in that the locking lever means is operatively connected with the latching means by way of a follower means and is guided in a guide means which permits its locking movement only in an end position corresponding to the end position of the latching means.
- a lock according to claim 4 characterized in that the locking lever means is guided at a fixed member by means of control cam means substantially concentric to its pivot axis, said control cam means being provided with a radial aperture at its end abutting at the fixed member in the end position thereof corresponding to the locked position of the latching means.
- a lock according to claim 9 characterized in that at least the lever means held in their closing position by spring stress are constructed as two-armed levers whose center of gravity is disposed approximately in the respective pivot axis.
- a lock according to claim 10 characterized in that the lock is for a motor vehicle door and in that the latching means, the locking lever means and the lock ing pawl means are secured at the door.
- a lock according to claim 13 characterized in that the locking lever means is operatively connected with the latching means by way of a follower means and is guided in a guide means which permits its locking movement only in an end position corresponding to the end position of the latching means.
- a lock according to claim 1 characterized in that the locking lever means is pivotally supported about a pivot axis which is displaceable together with the locking lever means approximately radially to the pivot axis of the latching means.
- a lock according to claim 1 characterized in that the locking lever means is guided at a fixed member by means of control cam means substantially concentric to its pivot axis, said control cam means being provided with a radial aperture at its end abutting at the fixed member in the end position thereof corresponding to the locked position of the latching means.
- a lock according to claim 1 characterized in that the safety lever means is operatively connected with at least one of the two parts consisting of disengaging lever means and locking pawl means by at least one intermediate lever means which carries eccentrically to its pivot axis the pivot axis of the locking lever means.
- a lock according to claim 1 characterized in that the safety lever means is operatively connected with at least one of the two parts consisting of disengaging lever means and locking pawl means by several intermediate lever means, of which one carries eccentrically to its own pivot axis the pivot pin of the locking lever means.
- a lock according to claim 1 characterized in that the locking lever means is spring-loaded with a spring in the direction of the closure movement of the latching means and includes a control edge by means of which it abuts at a fixed member of the latching means.
- a lock according to claim 1 characterized in that at least the lever means held in their closing position by spring stress are constructed as two-armed levers whose center of gravity is disposed approximately in the respective pivot axis.
- a lock according to claim 1 characterized in that the lock is for a motor vehicle door and in that the latching means, the locking lever means and the locking pawl means are secured at the door.
Landscapes
- Lock And Its Accessories (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2152613A DE2152613C3 (de) | 1971-10-22 | 1971-10-22 | Vorrichtung zum Sichern der Sperrklinke in einem Kraftfahrzeugtürverschluß |
Publications (1)
Publication Number | Publication Date |
---|---|
US3848910A true US3848910A (en) | 1974-11-19 |
Family
ID=5823071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US29927672 Expired - Lifetime US3848910A (en) | 1971-10-22 | 1972-10-20 | Door lock, especially for motor vehicle doors |
Country Status (7)
Country | Link |
---|---|
US (1) | US3848910A (de) |
JP (1) | JPS531525B2 (de) |
DE (1) | DE2152613C3 (de) |
FR (1) | FR2158906A5 (de) |
GB (1) | GB1381898A (de) |
IT (1) | IT966213B (de) |
SE (1) | SE384064B (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0285412A2 (de) * | 1987-03-30 | 1988-10-05 | Magna International Inc. | Fallenmechanismus |
US4867495A (en) * | 1987-07-17 | 1989-09-19 | Ohi Seisakusho Co., Ltd. | Door locking device for a vehicle |
US5474340A (en) * | 1993-01-15 | 1995-12-12 | Kiekert Gmbh & Co. Kg | Theft-resistant motor-vehicle door latch |
US20060261602A1 (en) * | 2005-05-20 | 2006-11-23 | Jankowski Krystof P | Inertia catch for door latches |
CN1297724C (zh) * | 2003-10-16 | 2007-01-31 | 本田制锁有限公司 | 车辆用门锁装置 |
CN1297723C (zh) * | 2003-10-16 | 2007-01-31 | 本田制锁有限公司 | 车辆用门锁装置 |
US20090025999A1 (en) * | 2007-07-23 | 2009-01-29 | Mitsui Mining & Smelting Co., Ltd. | Vehicle door lock device |
US20120000258A1 (en) * | 2009-04-23 | 2012-01-05 | Ryujiro Akizuki | Vehicle door locking device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5430716Y2 (de) * | 1973-12-28 | 1979-09-26 | ||
DE2911630C2 (de) * | 1979-03-24 | 1982-10-14 | Kiekert GmbH & Co KG, 5628 Heiligenhaus | Elektrische Zentralverriegelungsvorrichtung für Kraftfahrzeugtüren |
DE2911680C2 (de) * | 1979-03-24 | 1982-08-05 | Kiekert GmbH & Co KG, 5628 Heiligenhaus | Kraftfahrzeugtürverschluß mit Diebstahlsicherung |
DE3500550A1 (de) * | 1985-01-10 | 1985-10-31 | Daimler-Benz Ag, 7000 Stuttgart | Schlosssystem in einem kraftfahrzeug-tuerverschluss |
DE3622048A1 (de) * | 1986-07-01 | 1988-01-07 | Bayerische Motoren Werke Ag | Tuerschloss |
DE3827564C2 (de) * | 1988-08-13 | 1993-12-23 | Daimler Benz Ag | Schließeinrichtung für Fahrzeuge |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695663A (en) * | 1970-10-28 | 1972-10-03 | Stanley D Cockburn | Closure latch |
US3697105A (en) * | 1969-12-24 | 1972-10-10 | Atwood Vacuum Machine Co | Latch for vehicle doors |
-
1971
- 1971-10-22 DE DE2152613A patent/DE2152613C3/de not_active Expired
-
1972
- 1972-10-05 IT IT5320372A patent/IT966213B/it active
- 1972-10-20 GB GB4844872A patent/GB1381898A/en not_active Expired
- 1972-10-20 SE SE1361872A patent/SE384064B/xx unknown
- 1972-10-20 FR FR7237308A patent/FR2158906A5/fr not_active Expired
- 1972-10-20 US US29927672 patent/US3848910A/en not_active Expired - Lifetime
- 1972-10-21 JP JP10489372A patent/JPS531525B2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3697105A (en) * | 1969-12-24 | 1972-10-10 | Atwood Vacuum Machine Co | Latch for vehicle doors |
US3695663A (en) * | 1970-10-28 | 1972-10-03 | Stanley D Cockburn | Closure latch |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0285412A2 (de) * | 1987-03-30 | 1988-10-05 | Magna International Inc. | Fallenmechanismus |
EP0285412A3 (de) * | 1987-03-30 | 1989-10-04 | Magna International Inc. | Fallenmechanismus |
US4867495A (en) * | 1987-07-17 | 1989-09-19 | Ohi Seisakusho Co., Ltd. | Door locking device for a vehicle |
US5474340A (en) * | 1993-01-15 | 1995-12-12 | Kiekert Gmbh & Co. Kg | Theft-resistant motor-vehicle door latch |
CN1297724C (zh) * | 2003-10-16 | 2007-01-31 | 本田制锁有限公司 | 车辆用门锁装置 |
CN1297723C (zh) * | 2003-10-16 | 2007-01-31 | 本田制锁有限公司 | 车辆用门锁装置 |
US20060261602A1 (en) * | 2005-05-20 | 2006-11-23 | Jankowski Krystof P | Inertia catch for door latches |
US20090025999A1 (en) * | 2007-07-23 | 2009-01-29 | Mitsui Mining & Smelting Co., Ltd. | Vehicle door lock device |
US8256805B2 (en) * | 2007-07-23 | 2012-09-04 | Mitsui Kinzoku Act Corporation | Vehicle door lock device |
US20120000258A1 (en) * | 2009-04-23 | 2012-01-05 | Ryujiro Akizuki | Vehicle door locking device |
Also Published As
Publication number | Publication date |
---|---|
JPS531525B2 (de) | 1978-01-19 |
SE384064B (sv) | 1976-04-12 |
DE2152613B2 (de) | 1977-08-11 |
IT966213B (it) | 1974-02-11 |
DE2152613C3 (de) | 1978-04-13 |
FR2158906A5 (de) | 1973-06-15 |
JPS4853421A (de) | 1973-07-27 |
GB1381898A (en) | 1975-01-29 |
DE2152613A1 (de) | 1973-04-26 |
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