EP1771321A1 - Automatic steering lock device and its assembling procedure - Google Patents

Automatic steering lock device and its assembling procedure

Info

Publication number
EP1771321A1
EP1771321A1 EP05708725A EP05708725A EP1771321A1 EP 1771321 A1 EP1771321 A1 EP 1771321A1 EP 05708725 A EP05708725 A EP 05708725A EP 05708725 A EP05708725 A EP 05708725A EP 1771321 A1 EP1771321 A1 EP 1771321A1
Authority
EP
European Patent Office
Prior art keywords
lock
fact
drawer
steering
pin
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.)
Withdrawn
Application number
EP05708725A
Other languages
German (de)
French (fr)
Inventor
Luigi Usai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from ITBA20040016 external-priority patent/ITBA20040016A1/en
Priority claimed from ITBA20040029 external-priority patent/ITBA20040029A1/en
Application filed by Individual filed Critical Individual
Publication of EP1771321A1 publication Critical patent/EP1771321A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/0211—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column
    • B60R25/02115—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated
    • B60R25/02118—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated with linear bolt motion parallel to the lock axis

Definitions

  • the present invention relates to an automatic steering lock device. It serves to lock the steering shaft and can be installed on cars, motorcars, boats and, in general, on any shaft that allows the change of gear direction of any type of vehicle. Their use is quite various.
  • a variety of locking devices that use a pin member sliding inside a cavity have been proposed to date. They usually comprise a cylindrical-shaped case, inside which a pin member slides engaged to a cylindrical member lodged into the case, that contains the lock.
  • the sliding pin member is provided with at least a couple of little spheres which coming out from the side surface, fit into the groove of the case, to lock or unlock the pin to activate or deactivate the device.
  • the main drawback of the known applications is the unreliability of the spheres mechanism due to the abrupt stops of the spheres that compromise the functioning.
  • the invention solves the technical problems mentioned because it is an automatic steering lock to be used to lock the steering shaft and to be applied to the steering of cars, motorcycles, bicycles, boats and, in general, to any shaft that allows the change of gear of any type of vehicle. It comprises locking means directly connected to the lock and anti-breaking means to protect the lock; and is characterized by the fact that said lock comprises a rotor whose end transmits motion to a member that provides the device's lock and unlock positions.
  • the rotor is concentric with the stator and transforms the 90° rotary motion of a device named "drawer" (for it can be pulled out and pushed in) into linear one. Said 'drawer' is made of two pieces to allow its assembly.
  • said locking devices connected to said lock comprise an eccentric disk operated by the lock rotor.
  • Fig. 1 shows the exploded view of the steering lock according to the invention
  • ⁇ Fig. 2 shows the assembling drawing of the lock in locking position
  • Fig. 3 shows the assembling drawing of the lock sliding inside the cylindrical-shaped case
  • Fig. 6 shows a first step of the assembling process of the locking device
  • Fig. 7 shows the Aluminium flash
  • Fig. 8 shows the bush for fixing the shaft of the steering column
  • Fig. 9 shows a second step of the assembling process of the locking device
  • Fig. 10 shows a third step of the assembling process of the locking device
  • Fig. 11 shows the exploded view of the shaft fixing bush of Fig. 8.
  • the invention comprises a case (15) inside which an armoured housing (1) slides; said housing accommodates the lock (3) and a pawl (2) being the device activated, rotates protecting the lock from any attempt of breaking.
  • a member named 'drawer' (6) made of two pieces - the 'drawer' itself (6') and a 'counter-drawer' (6") - to ease the device assembly, and an elastic shaped member (5).
  • Said lock rotor (3) is concentric with the fixed portion of the device, allowing the reduction of the radial dimensions of the entire device. Said rotor transforms its 90° rotary motion into a linear motion of the drawer (6).
  • the drawer (6) being in the position illustrated in Fig. 2, engages with the case (15) in locking and unlocking positions; while being in the position illustrated in Fig. 3, it allows the armoured housing/lock set to slide from the locking position to the unlocking one, and vice versa.
  • the elastic member (5) for example an Archimedean spiral spring, ensures the correct transversal positioning of the 'drawer' inside the case (15).
  • Fig. 5 a further embodiment of the invention is shown.
  • the eccentric disc (56) is rotated by the lock core engaged to said eccentric disc and is connected to the case (15) in (15') and (15"), in unlocking and locking positions.
  • the elastic member (55) ensures the correct transversal position of the disc inside the case (15).
  • the locking member of the device is lodged inside the armoured housing (1), between the 'drawer' or the eccentric disc and the seat of an elastic retaining member (10).
  • the practical embodiments of the pin and the stem and the spring arrangement can be different.
  • the pin can be solid and the stem hollow, as in Fig. 4, or, the pin can be hollow and the stem solid.
  • Said armoured housing (1) is equipped with two safety half- bushings (12), a permanent magnet (14) and an elastic return element (11) acting between the case (15) and the pin (8) of the mushroom-shaped pin, which keeps the armoured housing /lock set tensioned. Thanks to its limited dimensions the case (15) does not need further machining to be suitable for the dimensions of the steering column.
  • the case is welded on the external seat of the previously drilled steering assembly, before fitting up the armoured housing /lock assembly. If not provided, the steering internal shaft is to be provided with a slotted bushing inside which the stem (9) works once the device is activated.
  • a miniature magnetic switch (not shown) is lodged into a seat of the case (15), being connected to an electronic interface allows the engine to start being the device deactivated.
  • the electronic interface is equipped with acoustic signalling device to signal the activation (for example, continuous signalling) or the deactivation (for example, discontinuous signalling) of the device when one of the car doors is open.
  • the electronic interface can provide any other sophisticated function upon request.
  • the assembling of the 'drawer' comprises two pieces: the 'drawer' itself (6') being radial-mounted inside the armoured housing and a 'counter-drawer' (6") axial-mounted, being joined by means of a dovetail; once joined the two parts assume a special shape that allows the rotor end (3) to move the two pieces as a 'drawer'.
  • the external end of the radial-mounted piece (6') can fit into the grooves of external case.
  • Said steering lock device in the embodiment used for the SMART car and other vehicle having the same steering column, has been studied to be provided as kit, since the assembling on the vehicle has been extremely simplified. The following are different steps for assembling the kit: 1. remove the steering column upper and lover covers and the right and left turn indicators; 2. remove the Aluminium flask (21) as in Fig. 6. 3. remove thread M8 (22) and produce a hole with a 09 drill point as in Fig. 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Automatic steering lock device with centre lock to lock the steering shaft and to be installed on cars, motorcars, boats and, in general, on any shaft that allows the change of gear direction of any type of vehicle; comprising a case (15) inside which there is an armoured housing (1) containing the lock (3); comprising also anti-breaking means to protect the lock and electronic means to interface with the engine starter and the instrument board; and comprising locking members directly connected to the lock; and characterized by the fact that said lock comprises a rotor whose end transmits motion to a member that locks and unlocks the device. According to a first embodiment the rotor is concentric with the stator and transforms the 90° rotary motion of a device named 'drawer' (6) into linear one. Said `drawer' is made of two pieces to allow its assembly. According to a further embodiment the locking means directly connected to said lock comprise an eccentric disc (56) and a shaped elastic member (55), being mounted on the opposite side from the key insertion, and rotated by the lock core engaged to said eccentric disc.

Description

Title: AifltomaftSc sfeerlmg toek device ami Us aigsemMiimg procedure
Applicant: Luigi USAI
Technical field
The present invention relates to an automatic steering lock device. It serves to lock the steering shaft and can be installed on cars, motorcars, boats and, in general, on any shaft that allows the change of gear direction of any type of vehicle. Their use is quite various. A variety of locking devices that use a pin member sliding inside a cavity have been proposed to date. They usually comprise a cylindrical-shaped case, inside which a pin member slides engaged to a cylindrical member lodged into the case, that contains the lock. The sliding pin member is provided with at least a couple of little spheres which coming out from the side surface, fit into the groove of the case, to lock or unlock the pin to activate or deactivate the device. The main drawback of the known applications is the unreliability of the spheres mechanism due to the abrupt stops of the spheres that compromise the functioning.
Other drawbacks are the lack of protection of the lock against breaking attempts and the blocking pin member engaged to the lock: the latter implies, in case of a key replacement, the replacement of the whole mechanism rather than the sole lock. Disclosure of the invention
The invention solves the technical problems mentioned because it is an automatic steering lock to be used to lock the steering shaft and to be applied to the steering of cars, motorcycles, bicycles, boats and, in general, to any shaft that allows the change of gear of any type of vehicle. It comprises locking means directly connected to the lock and anti-breaking means to protect the lock; and is characterized by the fact that said lock comprises a rotor whose end transmits motion to a member that provides the device's lock and unlock positions. According to a first embodiment of the invention the rotor is concentric with the stator and transforms the 90° rotary motion of a device named "drawer" (for it can be pulled out and pushed in) into linear one. Said 'drawer' is made of two pieces to allow its assembly. According to a further embodiment, said locking devices connected to said lock comprise an eccentric disk operated by the lock rotor. Lastly, to reduce the overall dimensions of the steering lock, the locking system has been simplified with a torsion spring and reducing from three to two the number of pieces of the locking pin.
These and other advantages of the present invention will be further understood by reference to the detailed description of the invention which will refer to tables 1/5, 2/5, 3/5, 4/5 e 5/5, which show a preferred and not restrictive embodiment. Way of carrying out the invention
With reference to the above mentioned tables:
• Fig. 1 shows the exploded view of the steering lock according to the invention; © Fig. 2 shows the assembling drawing of the lock in locking position;
• Fig. 3 shows the assembling drawing of the lock sliding inside the cylindrical-shaped case;
• Fig. 4 shows the assembling drawing of the mushroom pin; • Fig. 5 shows the exploded view of the second embodiment of the invention;
• Fig. 6 shows a first step of the assembling process of the locking device;
• Fig. 7 shows the Aluminium flash; • Fig. 8 shows the bush for fixing the shaft of the steering column;
• Fig. 9 shows a second step of the assembling process of the locking device
• Fig. 10 shows a third step of the assembling process of the locking device;
• Fig. 11 shows the exploded view of the shaft fixing bush of Fig. 8.
Referring to the drawings the invention comprises a case (15) inside which an armoured housing (1) slides; said housing accommodates the lock (3) and a pawl (2) being the device activated, rotates protecting the lock from any attempt of breaking. On the opposite side from the key insertion, there are a member named 'drawer' (6), made of two pieces - the 'drawer' itself (6') and a 'counter-drawer' (6") - to ease the device assembly, and an elastic shaped member (5). Said lock rotor (3) is concentric with the fixed portion of the device, allowing the reduction of the radial dimensions of the entire device. Said rotor transforms its 90° rotary motion into a linear motion of the drawer (6). In particular, the drawer (6) being in the position illustrated in Fig. 2, engages with the case (15) in locking and unlocking positions; while being in the position illustrated in Fig. 3, it allows the armoured housing/lock set to slide from the locking position to the unlocking one, and vice versa. The elastic member (5), for example an Archimedean spiral spring, ensures the correct transversal positioning of the 'drawer' inside the case (15).
In Fig. 5 a further embodiment of the invention is shown. On the opposite side from the key insertion, there are an eccentric disc (56) and a shaped elastic member (55). The eccentric disc (56) is rotated by the lock core engaged to said eccentric disc and is connected to the case (15) in (15') and (15"), in unlocking and locking positions.
The elastic member (55) ensures the correct transversal position of the disc inside the case (15). Lastly, the locking member of the device is lodged inside the armoured housing (1), between the 'drawer' or the eccentric disc and the seat of an elastic retaining member (10). It is an automatic mushroom-shaped pin (Fig. 4) comprising a pin (8), a spring (31) and a stem (9), being joined to the armoured housing (1) after the installation of said retaining member. It is however possible to remove it from the housing/lock assembly. The practical embodiments of the pin and the stem and the spring arrangement can be different. In particular, the pin can be solid and the stem hollow, as in Fig. 4, or, the pin can be hollow and the stem solid. The important matter is that the joint is smooth running and the spring is compressed between the pin and the stem. Said armoured housing (1) is equipped with two safety half- bushings (12), a permanent magnet (14) and an elastic return element (11) acting between the case (15) and the pin (8) of the mushroom-shaped pin, which keeps the armoured housing /lock set tensioned. Thanks to its limited dimensions the case (15) does not need further machining to be suitable for the dimensions of the steering column. The case is welded on the external seat of the previously drilled steering assembly, before fitting up the armoured housing /lock assembly. If not provided, the steering internal shaft is to be provided with a slotted bushing inside which the stem (9) works once the device is activated. Lastly, a miniature magnetic switch (not shown) is lodged into a seat of the case (15), being connected to an electronic interface allows the engine to start being the device deactivated. The electronic interface is equipped with acoustic signalling device to signal the activation (for example, continuous signalling) or the deactivation (for example, discontinuous signalling) of the device when one of the car doors is open. The electronic interface can provide any other sophisticated function upon request. As for the assembling of the 'drawer', it comprises two pieces: the 'drawer' itself (6') being radial-mounted inside the armoured housing and a 'counter-drawer' (6") axial-mounted, being joined by means of a dovetail; once joined the two parts assume a special shape that allows the rotor end (3) to move the two pieces as a 'drawer'. The external end of the radial-mounted piece (6') can fit into the grooves of external case. Said steering lock device, in the embodiment used for the SMART car and other vehicle having the same steering column, has been studied to be provided as kit, since the assembling on the vehicle has been extremely simplified. The following are different steps for assembling the kit: 1. remove the steering column upper and lover covers and the right and left turn indicators; 2. remove the Aluminium flask (21) as in Fig. 6. 3. remove thread M8 (22) and produce a hole with a 09 drill point as in Fig. 7.
4. Apply members (23', 23", 23'", 23""), as in Fig. 11, of the fixing bushing (23), whose assembling drawing is shown in Fig. 8, to the shaft (24) (see Fig. 9) without tightening, with the hole (4') of the mushroom-shaped pin (8, 9) of the steering lock device (20) lower down.
5. Assemble the flask (21) applying above the stiffening flask (25) and, between the steering column jacket and the plate supporting the case (26) insert the spacing bushings (27). See Fig. 10 for details. Tighten the provided screws (28) up until the hexagonal part breaks. Lastly, apply the lock nuts.
6. Place the bushing (23) with the hole facing the locking pin (8, 9) and tighten the dowels (29) applying the unscrew glue.

Claims

C L A I M S
1) Automatic steering lock device with centre lock to lock the steering shaft and to be installed on cars, motorcars, boats and, in general, on any shaft that allows the change of gear direction of any type of vehicle; comprising a case (15), welded on the external seat of the steering assembly, inside which there is an armoured housing (1) containing the lock (3) of any type; comprising also anti-breaking means to protect the lock and electronic means to interface with the engine starter and the instrument board; and comprising locking members directly connected to the lock; and characterized by the fact that said lock comprises a rotor whose end transmits motion to a member that locks and unlocks the device.
2) Device according to claim 1 , characterized by the fact that the rotor is concentric with the stator and transforms the 90° rotary motion of a device named "drawer" (6) into linear one. Said 'drawer' is made of two pieces to allow its assembly. 3) Device according to claim 2, characterized by the fact that said 'drawer' (6) is made of two pieces: the 'drawer' itself (6') being radial-mounted inside the armoured housing (1), and a 'counter-drawer' (6") axial-mounted, being joined by means of a dovetail; once joined, the two parts assume a special shape that allows the rotor end (3) to move the two pieces as a 'drawer', and the external end of the radial- mounted piece (6') to fit into the grooves of external case.
4) Device according to claim 3, characterized by the fact that the correct transversal positioning of the 'drawer' inside the case (15) is ensured by an elastic member (5).
5) Device according to claim 4, characterized by the fact that the elastic member (5) is an Archimedean spiral spring.
6) Device according to claim 1 , characterized by the fact that the locking means directly connected to said lock comprise an eccentric disc (56) and a shaped elastic member (55), being mounted on the opposite side from the key insertion, and rotated by the lock core engaged to said eccentric disc; and connected to the case (15) in (15') and (15"), in unlocking and locking positions; being the elastic member (55) to ensure the correct transversal position of the disc inside the case (15).
7) Device according to at least one of claims 1 to 6, characterized by the fact that said locking means comprise a comprising a pin (8), a spring (31) and a stem (9), and a sliding joint between the pin and the stem.
8) Device according to claim 7, wherein the torsion spring (31) is compressed between the pin and the stem.
9) Device according to claim 7 or 8, wherein the pin (8) is solid and the stem (9) is hollow. 10) Device according to claim 7 or 8, wherein the pin (8) is hollow and the stem (9) is solid. 11) Device according to at least one of the claims 7 to 10, characterised in that the mushroom-shaped pin (8, 9) 5 automatically locks the steering rotation without requiring a specific angle positioning. 12) Device according to at least one of the claims 7 to 11, characterised in that the mushroom-shaped pin (8, 9), after the insertion of a retaining member (10), is connected to the l o armoured housing ( 1 ). 13) Device according to at least one of the previous claims characterized by the fact that said anti-breaking means comprise two safety half-bushings (12). 14) Device according to at least one of the previous claims 15 characterized by the fact that said anti-breaking means comprise a pawl (2), being the device activated, rotates protecting the lock from any attempt of breaking. 15) Device according to at least one of the previous claims characterized by the fact that said case (15), thanks to its 0 limited dimensions, does not need further machining to adjust to the contained dimensions of the steering column; and is welded on the external seat of the steering assembly, whereas the armoured housing/lock assembly is installed inside it. 16) Device according to at least one of the previous claims 5 characterized by the fact that said steering shaft is provided with a slotted bushing inside which the stem (9) works once the device is activated.
17) Device according to at least one of the previous claims characterized by a miniature magnetic switch connected to an electronic interface that allows the engine to start being the device deactivated.
18) Device according to at least one of the previous claims characterized by a miniature magnetic switch is provided with acoustic signalling device to signal the activation or the deactivation of the device.
19) Assembling procedure of a device to lock the steering shaft, applicable to a SMART car and other vehicle having the same steering column, comprising the disassembly of the steering column parts, the installation of the assembly kit items, the adjustment of the mechanical connections to fix and re-assemble the entire device; and characterized by the installation of a bushing on the steering column, by the lack of welding between the locking device and the steering column and of any boring of the steering column. 20) Assembling procedure according to claim 18 characterized by the following steps: removal of the steering column upper and lover covers and the right and left turn indicators; removal of the Aluminium flask (21); transformation of the threads (22) into holes; positioning of the members (23', 23", 23"', 23"") of the fixing bushing (23) on the shaft (24), with the hole (45) lower down; assembly the flask (21) applying above the stiffening flask (25) and spacing bushings (27) between the steering column jacket and the plate supporting the case (26); screws (28) tightening; placing the bushing (23) with the hole (4') facing the locking pin (8, 9) and tightening of the dowels (29) applying the unscrew glue; reassembly of the steering column upper and lover covers and the right and left turn indicators.
EP05708725A 2004-04-21 2005-03-10 Automatic steering lock device and its assembling procedure Withdrawn EP1771321A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITBA20040016 ITBA20040016A1 (en) 2004-04-21 2004-04-21 ASSEMBLY PROCEDURE OF AN AUTOMATIC STEERING LOCK DEVICE AND RELATED ASSEMBLY KIT
ITBA20040029 ITBA20040029A1 (en) 2004-07-07 2004-07-07 CENTRAL LOCK AUTOMATIC STEERING LOCK DEVICE
PCT/IB2005/000632 WO2005102797A1 (en) 2004-04-21 2005-03-10 Automatic steering lock device and its assembling procedure

Publications (1)

Publication Number Publication Date
EP1771321A1 true EP1771321A1 (en) 2007-04-11

Family

ID=34965420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05708725A Withdrawn EP1771321A1 (en) 2004-04-21 2005-03-10 Automatic steering lock device and its assembling procedure

Country Status (2)

Country Link
EP (1) EP1771321A1 (en)
WO (1) WO2005102797A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2208432A5 (en) * 1972-11-24 1974-06-21 Neiman Exploitation Brevets
CH611562A5 (en) * 1976-11-01 1979-06-15 Tech Handelsberatung Establish Steering lock mechanism for motor vehicles
DE4219846C2 (en) * 1992-06-17 2001-10-18 Huf Huelsbeck & Fuerst Gmbh Steering lock for motor vehicles
WO1996007564A1 (en) * 1994-09-06 1996-03-14 Mccoolidge James S Ignition rack and sector gear for a steering column
DE19733249A1 (en) * 1997-08-01 1999-02-04 Marquardt Gmbh Steering wheel lock on a motor vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005102797A1 *

Also Published As

Publication number Publication date
WO2005102797A1 (en) 2005-11-03

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