EP0169644B1 - Vehicle door lock system - Google Patents
Vehicle door lock system Download PDFInfo
- Publication number
- EP0169644B1 EP0169644B1 EP85304079A EP85304079A EP0169644B1 EP 0169644 B1 EP0169644 B1 EP 0169644B1 EP 85304079 A EP85304079 A EP 85304079A EP 85304079 A EP85304079 A EP 85304079A EP 0169644 B1 EP0169644 B1 EP 0169644B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- release
- inner cable
- handle
- movement
- cable
- 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
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
- E05B83/36—Locks for passenger or like doors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
- E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
- E05B77/26—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety
- E05B77/265—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety hand actuated, e.g. by a lever at the edge of the door
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B79/00—Mounting or connecting vehicle locks or parts thereof
- E05B79/10—Connections between movable lock parts
- E05B79/20—Connections between movable lock parts using flexible connections, e.g. Bowden cables
-
- 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
- E05B85/10—Handles
- E05B85/12—Inner door handles
-
- 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
- E05B85/10—Handles
- E05B85/12—Inner door handles
- E05B85/13—Inner door handles with a locking knob forming part of the inside door handle unit
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B13/00—Devices preventing the key or the handle or both from being used
- E05B13/005—Disconnecting the handle
Definitions
- This invention relates to a vehicle door lock system and in particular to means for interconnecting a latch mechanism on a vehicle door with inner and/or outer door handles.
- Rod connectors used at present do not readily accommodate manufacturing tolerances. Different sized rods have to be used for connecting similar latches and handles in doors of different sizes.
- a vehicle door lock system comprising a latch mechanism mounted on a vehicle and having a release lever operable to release the latch mechanism and a locking lever having a locked position in which release of the latch mechanism is prevented and an unlocked position in which release of the latch mechanism is enabled; and handle means mounted on the door remote from the latch mechanism and manually operable for releasing, locking and unlocking the latch mechanism; the system being characterised in that the handle means is operatively connected both to the release lever and to the locking lever of the latch mechanism by a single Bowden push/ pull control cable.
- a vehicle lock system embodying the invention comprises a latch mechanism 10 ( Figures 3A and 3B) and an inner door handle 12 ( Figures 2A and 2B) mounted on a vehicle door (not shown) and interconnected only by a single push/pull Bowden control cable 14.
- the inner cable 16 and outer sheath 18 have three relative operating positions illustrated in Figure 1 at the input end of the control cable 14, namely: an unlocked position 2; a locked position 3 reached by pushing the inner cable 16 relative to the outer sheath 18 from position 2; and a released position 1 reached by pulling the inner cable 16 relative to the outer sheath 18 from position 2.
- the latch mechanism 10 is basically of the conventional form used on the Ford Escort Mk. III and comprises a housing 20, and a bifurcated keeper member (not shown) pivotally mounted on a shaft 22 to which is fixed ratchet member 24.
- a pawl 30 mounted on pivot 25 fixed to the housing 20 is biased by spring 28 into engagement with ratchet member 24.
- the pawl 30 cooperates with teeth 32, 34 on the ratchet member to establish partially and fully latched portions, the fully latched position being shown in Figure 3A.
- a release lever 26 has an aperture 27 receiving a pin 29 fixed to the pawl 30.
- the release lever 26 is movable in a clockwise direction about a pivot pin 36 to disengage the pawl 30 and release the latch. Such clockwise movement may be effected either by the inner door handle 12 acting through control cable 14 or by an outer door handle acting through a rod (not shown) connected to slot 38.
- a locking lever 40 mounted on pivot 42 has a downward extending arm 46 to which is fixed pivot pin 36.
- An L-shaped slot 44 in the release lever 26 receives the pivot pin 36.
- a toggle spring 48 urges the locking lever either to one end or the other of the horizontal portion of the slot 44 thereby defining an unlocked position (Figure 3A) in which the release lever can be pivoted about pin 36 to disengage the pawl 30 from the ratchet member 24 and a locked position (Figure 3C) in which operation of the outside handle causes the pin 36 to move along the vertical portion of the slot 44 without disengaging the pawl from the ratchet member.
- the locking lever 40 is connected at one end 50 by a rod (not shown) to a key cylinder associated with the outside doorhandle and at its other end to the control cable 14.
- the outer sheath 18 is fixed to the latch housing 20.
- the inner cable 16 extends through first and second parallel flanges 52, 54 on the locking lever 40.
- An end fitting 56 fixed to the inner cable 16 has a transversely disposed disc 58 at one end providing a lost motion connection of the inner cable 16 to the locking lever 40.
- a coil spring 60 acts between the disc 58 and the first flange 52 to bias the inner cable in its push direction relative to the locking lever 40.
- the other end 62 of the end fitting 56 forms a one way connection to the release lever 40.
- Figure 3A shows the latch in the unlocked position corresponding to control cable input position 2 illustrated in Figure 1.
- pushing the input end of the control cable to position 3 causes the disc 58 at the output end of the control cable 14 to displace the locking lever from its unlocked position to its locked position illustrated in Figure 3C.
- the end fitting 56 is free to pass through its aperture in the release lever 26.
- a child proof latch may be provided by a toggle lever 114 pivotably mounted on the locking lever 40.
- a finger 116 engages the cable end fitting 58 to prevent release movement when the child proof latch is "on" (full lines in Figure 4).
- the lever 114 is accessible for operation only when the vehicle door is open.
- Figures 2A and 2B show an inner door handle 10 comprising a housing 64 fixed to the door, and a release handle 66 and toggle locking button 68 pivotably mounted on the housing by a common pivot pin 70.
- the outer sheath 18 is connected to the housing 64 by a screw-threaded adjuster 86 and an end- fitting 72 on the inner cable 16 is slidable in an arcuate slot 74 in the handle 66 providing a lost motion connection.
- a coil spring 76 is mounted on the pivot pin 70. One end 78 of the coil spring 76 engages a first stop 80 on the toggle button 68 and the other end 82 is fixed to the end fitting 72. A second stop 84 on the toggle button 68 engages the end 82 of the coil spring 76 and holds it in a wound up condition.
- the unlocked position 2 of the inner door handle is as shown in full lines in Figure 2B.
- FIGs 5A and 5B show an alternative inner door handle in which the outer sheath 18 is mounted on a slider 88 instead of being fixed to the handle housing. Rotation of the toggle button 90 displaces the slider 88. There is no lost motion between the release handle 92 and the inner cable 16.
- FIG 5A the locked position of the door handle is shown in full lines. In operation, clockwise movement of the toggle button 90 from the locked to the unlocked positions pulls the outer sheath relative to the inner cable from position 3 to position 2. Anti-clockwise movement of the toggle button pushes the control cable input end from relative position 2 to relative position 3.
- FIG. 7A and 7B A further alternative inner door handle 10 is shown in Figures 7A and 7B.
- handle 94 is pulled to release the latch (dotted line position) and pushed to lock (chain dotted line position).
- Spring means 96 bias the handle 94 to its unlocked position (full lines).
- the handle 94 is connected to the inner cable 16 and the outer sheath 18 is connected to the handle housing 98.
- an orange portion 100 is exposed if the handle is in its unlocked position and a green portion 104 is exposed if the handle is in its locked position.
- Figures 6A to 6D show an alternative construction of the connection of the output end of the control cable 14 to the latch mechanism 10.
- the latch mechanism itself is basically the same as that shown in Figures 3A to 3D. Parts common to both embodiments retain the same reference numerals, modified parts have the same reference numeral with a prime, and new parts have new numerals.
- the release lever 26' is formed with revised L-shaped slot 106 arranged such that clockwise (instead of anti-clockwise) displacement is required to move the locking lever 40' from its unlocked position (Figure 6A) to its locked position ( Figure 6C).
- the outer sheath 18 is fixed to a mounting flange 108 on the locking lever 40'.
Landscapes
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
- This invention relates to a vehicle door lock system and in particular to means for interconnecting a latch mechanism on a vehicle door with inner and/or outer door handles.
- Rod connectors used at present do not readily accommodate manufacturing tolerances. Different sized rods have to be used for connecting similar latches and handles in doors of different sizes.
- Furthermore, conventional door lock systems have one cooperating mechanism or actuator for the latching/unlatching function and a second operating mechanism or actuator for the locking/ unlocking function. Systems of this type are shown in GB-A-1,317,438 and in US-A-3,400,962 which forms the basis for the pre-characterising part of
claim 1. - According to the present invention, there is provided a vehicle door lock system comprising a latch mechanism mounted on a vehicle and having a release lever operable to release the latch mechanism and a locking lever having a locked position in which release of the latch mechanism is prevented and an unlocked position in which release of the latch mechanism is enabled; and handle means mounted on the door remote from the latch mechanism and manually operable for releasing, locking and unlocking the latch mechanism; the system being characterised in that the handle means is operatively connected both to the release lever and to the locking lever of the latch mechanism by a single Bowden push/ pull control cable.
- In the following specification and the appended claims the components of the Bowden control cable are identified by the terms "outer sheath" and "inner cable". In each embodiment and in each of the claims these components may be substituted one for the other and the claims are to be construed accordingly.
- Various preferred features of the invention are set out in
dependent Claims 2 to 8. - The invention will now be described further, by way of example, with reference to the accompanying drawings, in which:
- Figure 1 is a diagram of the input end of a control cable for a vehicle door lock system embodying the invention showing the relative positions of the inner cable and sheath common to all embodiments of the invention;
- Figures 2A and 2B are front and plan views, respectively, of an inner door handle for a vehicle door lock system embodying the invention;
- Figures 3A and 3B are rear and end views, respectively, of a latch mechanism in a vehicle door lock system embodying the invention illustrated in its unlocked condition;
- Figures 3C and 3D show the latch mechanism of Figures 3A and 3B in its locked and released conditions, respectively;
- Figure 4 is an end view showing a modification of the latch mechanism of Figures 3A to 3D;
- Figures 5A and 5B are plan and front views, respectively, of a first alternative inner door handle;
- Figures 6A to 6D are views corresponding to Figures 3A to 3D of an alternative latch mechanism; and
- Figures 7A and 7B are plan and front views, respectively, of a second alternative inner door handle.
- A vehicle lock system embodying the invention comprises a latch mechanism 10 (Figures 3A and 3B) and an inner door handle 12 (Figures 2A and 2B) mounted on a vehicle door (not shown) and interconnected only by a single push/pull Bowden
control cable 14. - The
inner cable 16 andouter sheath 18 have three relative operating positions illustrated in Figure 1 at the input end of thecontrol cable 14, namely: anunlocked position 2; a lockedposition 3 reached by pushing theinner cable 16 relative to theouter sheath 18 fromposition 2; and a releasedposition 1 reached by pulling theinner cable 16 relative to theouter sheath 18 fromposition 2. - Referring to Figures 3A to 3D, the latch mechanism 10 is basically of the conventional form used on the Ford Escort Mk. III and comprises a
housing 20, and a bifurcated keeper member (not shown) pivotally mounted on ashaft 22 to which is fixedratchet member 24. Apawl 30 mounted onpivot 25 fixed to thehousing 20 is biased byspring 28 into engagement withratchet member 24. Thepawl 30 cooperates withteeth release lever 26 has anaperture 27 receiving apin 29 fixed to thepawl 30. Therelease lever 26 is movable in a clockwise direction about apivot pin 36 to disengage thepawl 30 and release the latch. Such clockwise movement may be effected either by theinner door handle 12 acting throughcontrol cable 14 or by an outer door handle acting through a rod (not shown) connected toslot 38. - A
locking lever 40 mounted onpivot 42 has a downward extending arm 46 to which is fixedpivot pin 36. An L-shaped slot 44 in therelease lever 26 receives thepivot pin 36. Atoggle spring 48 urges the locking lever either to one end or the other of the horizontal portion of theslot 44 thereby defining an unlocked position (Figure 3A) in which the release lever can be pivoted aboutpin 36 to disengage thepawl 30 from theratchet member 24 and a locked position (Figure 3C) in which operation of the outside handle causes thepin 36 to move along the vertical portion of theslot 44 without disengaging the pawl from the ratchet member. - The
locking lever 40 is connected at oneend 50 by a rod (not shown) to a key cylinder associated with the outside doorhandle and at its other end to thecontrol cable 14. - The
outer sheath 18 is fixed to thelatch housing 20. Theinner cable 16 extends through first and secondparallel flanges locking lever 40. An end fitting 56 fixed to theinner cable 16 has a transversely disposeddisc 58 at one end providing a lost motion connection of theinner cable 16 to thelocking lever 40. Acoil spring 60 acts between thedisc 58 and thefirst flange 52 to bias the inner cable in its push direction relative to thelocking lever 40. - The
other end 62 of the end fitting 56 forms a one way connection to therelease lever 40. - Figure 3A shows the latch in the unlocked position corresponding to control
cable input position 2 illustrated in Figure 1. In operation, pushing the input end of the control cable toposition 3 causes thedisc 58 at the output end of thecontrol cable 14 to displace the locking lever from its unlocked position to its locked position illustrated in Figure 3C. As shown in Figure 3C, theend fitting 56 is free to pass through its aperture in therelease lever 26. - Pulling the input end of the control cable back from
position 3 toposition 2 returns the locking lever to the unlocked position becausecoil spring 60 is- strong enough to overcome thetoggle spring 48. - Pulling the input end of the control cable further from
position 2 to position 1 effects release of the latch by engagement of end fitting 56 with therelease lever 26 as shown in Figure 3D.Coil spring 60 is compressed as the inner cable effects its lost motion relative to thelocking lever 40. - Return of the inner cable to
position 2 is effected bycoil spring 60 andspring 28 acting at the output end of the control cable. - Referring to Figure 4, a child proof latch may be provided by a
toggle lever 114 pivotably mounted on thelocking lever 40. Afinger 116 engages the cable end fitting 58 to prevent release movement when the child proof latch is "on" (full lines in Figure 4). Thelever 114 is accessible for operation only when the vehicle door is open. - Figures 2A and 2B show an inner door handle 10 comprising a
housing 64 fixed to the door, and arelease handle 66 andtoggle locking button 68 pivotably mounted on the housing by acommon pivot pin 70. - The
outer sheath 18 is connected to thehousing 64 by a screw-threadedadjuster 86 and an end- fitting 72 on theinner cable 16 is slidable in anarcuate slot 74 in thehandle 66 providing a lost motion connection. - A
coil spring 76 is mounted on thepivot pin 70. Oneend 78 of thecoil spring 76 engages a first stop 80 on thetoggle button 68 and theother end 82 is fixed to the end fitting 72. A second stop 84 on thetoggle button 68 engages theend 82 of thecoil spring 76 and holds it in a wound up condition. - The
unlocked position 2 of the inner door handle is as shown in full lines in Figure 2B. - In operation, clockwise movement of the toggle button rotates the
coil spring 76 and moves theinner cable 16 fromposition 2 toposition 3 causing locking of the latch mechanism. - Anti-clockwise movement of the toggle button from its locked position (shown in dotted lines in Figure 2B) rotates
spring 76 back toposition 2. - When the
release handle 66 is pulled with the toggle button in the unlocked position after an initial lost motion, the inner cable is pulled fromposition 2 to position 3 to release the latch mechanism. This movement also disengagesend 82 of the coil spring from the toggle button and winds up thecoil spring 76 without moving thetoggle button 68. - When the
release handle 66 is pulled with the toggle button in the locked position, the initial movement of the handle rotates thetoggle button 68 back to its unlocked position. - Figures 5A and 5B show an alternative inner door handle in which the
outer sheath 18 is mounted on aslider 88 instead of being fixed to the handle housing. Rotation of thetoggle button 90 displaces theslider 88. There is no lost motion between therelease handle 92 and theinner cable 16. In Figure 5A the locked position of the door handle is shown in full lines. In operation, clockwise movement of thetoggle button 90 from the locked to the unlocked positions pulls the outer sheath relative to the inner cable fromposition 3 toposition 2. Anti-clockwise movement of the toggle button pushes the control cable input end fromrelative position 2 torelative position 3. - When the
release handle 92 is pulled, the initial movement pulls the inner cable to position 2 but leaves the toggle button in its locked position. Further movement of the release handle pulls the cable to position 1 to release the latch. As soon as the handle is let go, its initial return movement displaces the toggle button to the unlocked position. - A further alternative inner door handle 10 is shown in Figures 7A and 7B. In this mechanically simpler version there is no locking button. Instead, handle 94 is pulled to release the latch (dotted line position) and pushed to lock (chain dotted line position). Spring means 96 bias the
handle 94 to its unlocked position (full lines). Thehandle 94 is connected to theinner cable 16 and theouter sheath 18 is connected to thehandle housing 98. - In order to assist in identification of the positions of the handle, an
orange portion 100 is exposed if the handle is in its unlocked position and agreen portion 104 is exposed if the handle is in its locked position. - Figures 6A to 6D show an alternative construction of the connection of the output end of the
control cable 14 to the latch mechanism 10. The latch mechanism itself is basically the same as that shown in Figures 3A to 3D. Parts common to both embodiments retain the same reference numerals, modified parts have the same reference numeral with a prime, and new parts have new numerals. - The release lever 26' is formed with revised L-shaped
slot 106 arranged such that clockwise (instead of anti-clockwise) displacement is required to move the locking lever 40' from its unlocked position (Figure 6A) to its locked position (Figure 6C). - The
outer sheath 18 is fixed to a mountingflange 108 on the locking lever 40'. An end fitting 110 on theinner cable 16 engages astop 112 fixed to the housing 20'. - In operation, push movement of the
inner cable 16 relative to the outer sheath 18 (caused by moving the input end of thecable 14 fromposition 2 to position 3) produces upward movement of the output end of the outer sheath because theinner cable 16 reacts against thestop 112. The outer sheath moves the locking lever 40' to its locked position (Figure 3C) full movement of theinner cable 16 relative to the outer sheath 18 (input position from 3 to 2) returns the locking lever 40' to the unlocked position becausespring 28 is stronger thantoggle spring 48. - Further pull movement (
input position 2 to 1) causes the inner cable to displace release lever 26' in the clockwise direction to release the latch (Figure 6D).
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85304079T ATE41806T1 (en) | 1984-07-21 | 1985-06-10 | LOCK SYSTEM FOR A VEHICLE DOOR. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8418672 | 1984-07-21 | ||
GB08418672A GB2161854A (en) | 1984-07-21 | 1984-07-21 | Vehicle door lock system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0169644A2 EP0169644A2 (en) | 1986-01-29 |
EP0169644A3 EP0169644A3 (en) | 1987-04-01 |
EP0169644B1 true EP0169644B1 (en) | 1989-03-29 |
Family
ID=10564282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85304079A Expired EP0169644B1 (en) | 1984-07-21 | 1985-06-10 | Vehicle door lock system |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0169644B1 (en) |
AT (1) | ATE41806T1 (en) |
DE (1) | DE3569141D1 (en) |
ES (1) | ES8603616A1 (en) |
GB (1) | GB2161854A (en) |
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GB679556A (en) * | 1949-09-22 | 1952-09-17 | Teleflex Prod Ltd | Improvements in and relating to locks for vehicle doors |
GB669792A (en) * | 1949-12-07 | 1952-04-09 | Rudolph Ignatius Schonitzer | Door control mechanism |
US3400962A (en) * | 1967-09-07 | 1968-09-10 | American Motors Corp | Safety door latch arrangement |
GB1317438A (en) * | 1969-07-16 | 1973-05-16 | Wilmot Breeden Ltd | Vehicle doors |
DE2007814A1 (en) * | 1970-02-20 | 1971-08-26 | Volkswagenwerk Ag, 3180 Wolfsburg | Lock arrangement for vehicle doors with central lock and remote control lock |
-
1984
- 1984-07-21 GB GB08418672A patent/GB2161854A/en not_active Withdrawn
-
1985
- 1985-03-15 ES ES541311A patent/ES8603616A1/en not_active Expired
- 1985-06-10 DE DE8585304079T patent/DE3569141D1/en not_active Expired
- 1985-06-10 AT AT85304079T patent/ATE41806T1/en active
- 1985-06-10 EP EP85304079A patent/EP0169644B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8418672D0 (en) | 1984-08-22 |
ATE41806T1 (en) | 1989-04-15 |
DE3569141D1 (en) | 1989-05-03 |
ES541311A0 (en) | 1985-12-16 |
EP0169644A2 (en) | 1986-01-29 |
ES8603616A1 (en) | 1985-12-16 |
EP0169644A3 (en) | 1987-04-01 |
GB2161854A (en) | 1986-01-22 |
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