GB2291108A - A vehicle locking system - Google Patents
A vehicle locking system Download PDFInfo
- Publication number
- GB2291108A GB2291108A GB9512462A GB9512462A GB2291108A GB 2291108 A GB2291108 A GB 2291108A GB 9512462 A GB9512462 A GB 9512462A GB 9512462 A GB9512462 A GB 9512462A GB 2291108 A GB2291108 A GB 2291108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- securing
- cable
- securing system
- cable inner
- function
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
- F16C1/02—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing for conveying rotary movements
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2350/00—Machines or articles related to building
- F16C2350/52—Locks, e.g. cables to actuate door locks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
A vehicle door latch 60 has a latching function operated by longitudinal movement of the inner of a Bowden cable 66 via a lever 92. The latch also has a locking function operated by rotation of the cable inner. The longitudinal movement of the cable inner is effected by means of the external door handle 64, and the rotational movement by means of the key operated door lock 62. <IMAGE>
Description
A Vehicle Locking System
The present invention relates to locking systems for vehicles, and in particular to improved mechanical drive mechanisms for vehicle locks.
With ever increasing car crime it is becoming more important to provide locking systems for vehicles which prevent unauthorized access to the vehicle. Currently the link between the door lock into which the key is inserted and the latch mechanism which is to be locked is generally made up of link rods. It is a problem with such systems that once a thief has forced the lock out of the door it is easy to operate the latch manually by direct access to the link rods. Also the link rods can be operated by inserting an implement down the side of the window glass.
The present invention aims to overcome this problem by providing a more secure link between the lock and latch.
Accordingly the present invention provides a securing system for a vehicle door, the system comprising a rotatable member adapted to be rotated by a user of the vehicle, cable means comprising a cable outer and a cable inner, and a securing mechanism for securing a door of the vehicle, wherein the cable inner is rotatable within the outer by rotation of the rotatable member to operate a function of the securing mechanism.
The securing mechanism may be a latch or a locking mechanism or a combined latch and locking mechanism.
Preferably the function is a locking function. In this case, the rotational drive means may form part of a key operated lock. For example, it may comprise a first gear wheel, and the system may further comprise a second gear wheel attached to the cable inner and engaged with the first gear wheel to be rotated by it. Alternatively the rotational drive means may be arranged to be rotated directly by hand, and may, for examle, comprise a thumb wheel.
Alternatively the function may comprise an unlatching or release function.
Preferably the cable inner is also movable longitudinally within the cable outer to perform a further securing function of the securing mechanism.
Preferably the rotational drive means includes a splined driving member, and the system further comprises a splined sliding member which can slide relative to the driving member to allow the longitudinal movement of the cable inner.
The system preferably further comprises a longitudinal drive member which is rotatably attached to the cable inner.
Preferred embodiments of the present invention will now be described by way 0 example only with reference to the accompanying drawings in which:
Figure 1 is a view of a vehicle door securing system accordIng to a -irst embodiment of the invention,
Figure 1A is a schematic view of part of the system of
Figure 1;
Figure 2 is a section through the door lock of the system of Figure 1,
Figure 3 is a view of a vehicle door securing system according to a second embodiment of the invention,
Figure 4 is a view on arrow A of part of the system of
Figure 3, and
Figure 5 is a section on line V-V through part of the system of Figure 4.
Referring to Figures 1 and 2 a vehicle door 10 has a latch mechanism 12 mounted on it. The latch mechanism includes an unlatching or release lever 14 which is used to unlatch the door 10 and is connected to inside and outside door handles 16, 18 by respective link rods 20, 22. The latch mechanism further includes a locking lever 24 which operates a locking function within the latch mechanism 12. The locking lever can be operated by a link rod 26 connected to a sill button (not shown) on the vehicle door 10, by a Bowden cable 28 connected to a key operated external door lock 30, and by a central locking motor 32. The Bowden cable 28 has its inner 34 connected to the locking lever by means of a screw-in connector 33 which translates rotation of the inner 34 in the Bowden cable outer 36 to rotation of the locking lever.
As can be seen in Figure 2, the door lock 30 includes a first bevelled gear 52 arranged to rotate when the key is turned in the lock. The Bowden cable outer 36 is supported in a cable abutment 54, and the inner 34 extends into the casing 40. The casing includes a support 56 for the end of the inner 34 which allows it to rotate but prevents lateral movement. Between the abutment 54 and the support 56 a second bevelled gear 58 is mounted on the cable inner 34, such that it engages the first bevelled gear 52.
Therefore rotation of the key in the lock causes rotation of the Bowden cable inner 34. The axis of rotation of the key and the first bevelled gear 52 is perpendicular to that of the second bevelled gear 58 and the cable inner 34.
The casing 40 completely encioses the door lock and all the components which translate rotation of the key in the lock to rotation of the Bowden cable inner. Also the casing 40 and the Bowden cable outer 36 prevent access to the Bowden cable inner 34 by any route other than via the door lock 30. This means that even if a potential thief manages to prise the lock 30 out of the vehicle door 10 he will still not have access to the Bowden cable inner 34, and will therefore not be able to operate the -locking lever easily.
Referring to Figures 3 and 4, In a second embodiment of the invention a vehicle securing mechanism in the form of a door latch 50 having release and locking functions is provided, and is operated by a key operated lock 52 and a door handle 64 via a single Bowden cable 66. At each end of the Bowden cable is a dual function cable linkage mechanism 68, 70. One of these 68 transfers movement of the door handle 64 to longitudinal movement of the inner 72 of the Bowden cable within the outer 74, and movement of the key in the lock 62 to rotational movement of the inner within the outer. The other 70 translates the longitudinal and rotational movement into release and locking actions in the latch 60.
Referring to Figure 5, each dual action linkage mechanism 68, 70 comprises a main body 76 which supports the end of the cable outer 74, an internally splined drive cup 78, and an externally splined driven member 80 which is secured to the end of the cable inner 72. The drive cup 78 is rotatable relative to the main body 76 together with the driven member 80 and the cable inner 72, and has a rotary drive pin 82 projecting from it .A linear drive pin 84 is connected to the cable inner 72 by means of a sleeve 85 which allows the linear drive pin 84 to rotate relative to the cable inner. A stop 86 is attached to the cable inner 72 on the opposite side of the sleeve 85 to the driven member 80 thereby preventing movement of the sleeve along the cable inner 72. The linear drive pin 84 extends out of the main body 76 through a slot 88
In the linkage mechanism 68 the rotary drive pin is rotated by the lock 62, which is similar to that shown in
Figure 2, but with the second bevelled gear 58 driving the rotary drive pin 82. The linear drive pin 84 extends through a slot 90 in the door handle 54 and is moved along the slot 88 in the main body 76 of by pulling and releasing the door handle.
In the linkage mechanism 70 the rotary drive pin 82 is connected to a locking member in the latch mechanism 60 so that rotation of the cable inner 72 causes locking of the vehicle door. The linear drive pin 84 is connected to a lever 92 which is rotated by longitudinal movement of the cable inner 72 to operate a latching function of the latch mechanism 60.
In a third embodiment of the invent ion, the system is similar to that of the second embodiment, except that the locking and latching operations are effected by means of an internal door handle, which operates in the same way as the external door handle 54, and a thumb wheel which is attached to the rotational drive pin 82, and which replaces the sill button conventionally used to operate vehicle door locks from inside the vehicle.
Claims (13)
1. A securing system for a vehicle door, the system
comprising rotational drive means adapted to be rotated
by a user of the vehicle, cable means comprising a
cable outer and a cable inner, and a securing mechanism
for securing a door of the vehicle, wherein the cable
inner is rotatable within the outer by movement of the
rotational drive means to operate a function of the
securing mechanism.
2. A securing system according to claim 1 wherein the
securing function is a locking function.
3. A securing system according to claim 2 wherein the
rotational drive means forms part of a key operated
lock.
4. A securing system according to claim 3 wherein the
rotational drive means includes a first gear wheel, and
the system further comprises a second gear wheel
attached to the cable inner and engaged with the first
gear wheel to by rotated by it.
5. A securing system according to claim 4 wherein the gear
wheels are bevelled and have their axes perpendicular
to each other.
6. A securing system according to claim 1 or claim 2
wherein the rotational drive means is arranged to be
rotated directly by hand.
7. A securing system according to claim 6 wherein the
rotatable means comprises a thumb wheel.
8. A securing system according to any foregoing claim
wherein the cable inner is also movable longitudinally
within the cable outer to perform a further function of
the securing mechanism.
9. A securing system according to claim 8 wherein the
rotational drive means includes a splined driving
member, and the system further comprises a splined
sliding member which can slide relative to the driving
member to allow the longitudinal movement of the cable
inner.
l0.A securing system according to claim 8 or claim 9
further comprising a longitudinal drive member which is
rotatably attached to the cable inner.
ll.A securing system according to any foregoing claim
wherein the securing mechanism is a combined latch and
locking mechanism.
12. A securing mechanism according to any one of claims 8
to 11 wherein said further function is an unlatching
function.
13. A vehicle securing system substantially as hereinbefore
described with reference to Figures 1 and 2 or Figures
3, 4 and 5 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9512462A GB2291108B (en) | 1994-07-02 | 1995-06-20 | A vehicle locking system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9413388A GB9413388D0 (en) | 1994-07-02 | 1994-07-02 | A vehicle locking system |
| GB9512462A GB2291108B (en) | 1994-07-02 | 1995-06-20 | A vehicle locking system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9512462D0 GB9512462D0 (en) | 1995-08-23 |
| GB2291108A true GB2291108A (en) | 1996-01-17 |
| GB2291108B GB2291108B (en) | 1997-08-06 |
Family
ID=26305193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9512462A Expired - Fee Related GB2291108B (en) | 1994-07-02 | 1995-06-20 | A vehicle locking system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2291108B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2357313A (en) * | 1999-12-16 | 2001-06-20 | Maple & Sons Ltd J | Door lock |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2026657A (en) * | 1978-05-24 | 1980-02-06 | Kaerkkaeinen A | Firearm with a locking device |
-
1995
- 1995-06-20 GB GB9512462A patent/GB2291108B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2026657A (en) * | 1978-05-24 | 1980-02-06 | Kaerkkaeinen A | Firearm with a locking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2357313A (en) * | 1999-12-16 | 2001-06-20 | Maple & Sons Ltd J | Door lock |
| GB2357313B (en) * | 1999-12-16 | 2003-05-07 | Maple & Sons Ltd J | Door Locks |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2291108B (en) | 1997-08-06 |
| GB9512462D0 (en) | 1995-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030620 |