GB2059757A - Improvements in or relating to seats - Google Patents
Improvements in or relating to seats Download PDFInfo
- Publication number
- GB2059757A GB2059757A GB8029703A GB8029703A GB2059757A GB 2059757 A GB2059757 A GB 2059757A GB 8029703 A GB8029703 A GB 8029703A GB 8029703 A GB8029703 A GB 8029703A GB 2059757 A GB2059757 A GB 2059757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seat
- frame
- seat back
- base frame
- plunger
- 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- Withdrawn
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
- B60R25/014—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 comprising means for locking the seat or parts thereof in a driving prevention position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
Abstract
A seat (2) for a vehicle comprises a seat back frame (8) which is pivotally (12) disposed with respect to a seat base frame (10). In order to lock the seat in a position which would prevent use of the seat and which would prevent operation of the vehicle in which the seat is mounted there is provided catch means (14) carried by the seat back frame (8) and comprising a plunger (18) which is engageable in a recess (24) formed in the seat base frame (10). A locking device (16) in the form of a key operated lock actuates the plunger (18) so as to lock the seat in the tilted position against the steering wheel. In an alternative arrangement, the base frame is slidable on a mounting frame, and the recess is provided in the mounting frame. <IMAGE>
Description
SPECIFICATION
Improvements in or relating to seats
This invention concerns improvements in or relating to seats and has particular application to a vehicle seat.
Various anti-theft devices have been used with motor vehicles to prevent or deter a would-be thief or joy-rider from taking the particular car to which the device is fitted. Such devices include audible alarms, hand brake locks and steering locks.
It is an aim of this invention to provide a simple means of preventing the use of a seat having a back which is pivotable with respect to a base of the seat.
According to the present invention there is provided a seat, having a seat back which is pivotable with respect to a seat base, and a locking device comprising locking means operable to lock the seat back in a pivoted position preventing use of the seat.
In a preferred embodiment the locking means comprises a body member secured to a frame associated with the seat back, and a plunger, operable by key, which plunger, when the seat is in the locked position engages in a recess in the frame associated with the seat base at least at one side of the seat. Conveniently, the plunger or a further plunger is engageable in a recess in the seat back frame and/or the seat base frame on the side of the seat remote from the back. Advantageously the further plunger is spring loaded to return to the disenaged position when the lock is unlocked.
In the case where the seat is used as the driver's seat in a vehicle the seat back may pivot forwards towards the steering wheel of the vehicle or backwards away from the steering wheel. In either instance, it is made difficult, if not impossible, to drive the vehicle with the seat in this position.
In a further preferred embodiment the seat is adjustable with respect to a mounting frame, and the locking means are operable to lock the seat base with respect to the mounting frame to prevent movement of the seat.
Separate locking means may be used to lock the seat back when it is pivotable with respect to the seat base and to lock the seat with respect to the mounting frame, or alternatively the same locking means may be used
The locking means may be secured to one of the mounting frame, seat base frame or seat back frame and comprises a plunger, operable by key, which in the locked position engages one of the mounting frame, seat base frame or seat back frame and comprises a plunger, operable by key, which in the locked position engages one of the mounting frame, seat base frame or seat back frame preventing movement of the seat back or seat base with respect to the mounting frame.
In a further preferred embodiment catch means is attached to the seat base frame and the plunger engages the catch means to lock it and the seat back in a pivoted position and at the same time engages a flange of the mounting frame preventing movement of the seat base from its forwardmost position.
Conveniently, a flange attached to the seat back frame is provided with a through hole into which the plunger fits when the seat back is tilted forwards.
Advantageously, the body member of the locking means is attached to the back frame by means of bolts whose heads shear off when tightened to a predetermined torque, thus preventing removal of the locking means.
Advantageously this invention provides a simple and cheap means of immobilising a vehicle.
The invention will now be described further hereinbelow by way of example only, with reference to the accompanying drawings, in which: Fig. 1 is a simplified view of a seat embodying the invention;
Fig. 2 is a further view of the seat illustrating the normal and pivoted positions, and
Fig. 3 is a simplified view of a further embodiment of the invention.
The seat 2 comprises a seat back 4 and a seat base 6 each of which has a respective frame 8, 10. The seat back frame 8 is pivotable about a pivot axis 12 with respect to the seat base frame, whilst, not shown in the drawing, the seat may be provided with adjusting means for adjusting the angle of the back with respect to the base. According to the invention locking means generally indicated at 14 are provided so that the seat back may be locked in the forward titled position, indicated at 15 in Fig. 2. Thus, where the seat is used in a motor vehicle as the driver's seat, locking the seat in this titled position will prevent the seat being used and consequently the vehicle cannot be driven. It is envisaged that such a facility will have applications other than in motor vehicles.
As illustrated it is envisaged that the seat back will be tilted towards the seat base and then locked in position but it is also envisaged that the seat back could be tilted away from the seat base, making use of the seat equally difficult.
As illustrated in one embodiment, the locking means 14 comprises a lock body member 16 which is secured to the seat back frame 8 by bolts (not shown) the heads of which conveniently shear off at a predetermined tightening torque and thus prevent removal of the lock body member. The lock body member 16 comprises a plunger 18which is operated by a key 20. Alternatively, the plunger may be displaced by an electrical solenoid which is incorporated in a centralised locking system. A flange 22, attached to the seat base frame 10 has a through hole 24, which when the seat is tilted forward and the locking device is operated receives the plunger of the locking device. Thus the seat is locked in the tilted position. Alternatively the flange 22 may be formed integrally with the seat base frame 10.As shown, a further plunger 26 is positioned within the seat base such that when the plunger 18 is displaced to the left as shown in Fig. 1 the further plunger 26 is likewise displaced to the left and passes through a
The drawing(s) originally filed was/were informal and the print here reproduced is taken
from a later filed formal copy.
corresponding through bore 28 provided in a flange 30 attached to the seat back frame at the other side of the seat remote from the lock body member. The further plunger 28 is guided slidably in bushes (not shown) and passes through a hole 32 in the seat base. A spring 34 normally biases the further plunger 26 to the right as shown out of engagement with the recess 28. Thus, when the plunger 18 is withdrawn when the key is operated to unlock the seat, the further plunger is withdrawn from the recess 28 and the seat can be returned into the normal position.
In a modification (not illustrated) the seat base frame is slidingly mounted on a mounting frame which is the case where the seat is a vehicle seat is attached to the floor of the vehicle. An upstanding flange is fixedly attached to the mounting frame and is arranged to be disposed between the seat back frame and the seat base frame. The upstanding flange has an aperture therein through which the plunger of the catch means passes in the locked position of the seat. The flange is so positioned on the mounting frame that the seat base must be moved forward (i.e. towards the steering wheel) so that the plunger passes through the recess. Thus the seat is locked in a forward position and with the seat back tilted preventing use of the seat and operation of the vehicle.
In an alternative embodiment the catch means is carried by the mounting frame. The catch means has a locking device whose plunger is displaceable so as to engage with a recess in the back frame and a recess in the base frame when the seat back is in the tilted position and the seat is moved forwardly with respect to the mounting frame.
In an alternative embodiment (not illustrated) the seat back frame carries a plate having an arcuate surface whose periphery is coaxial with the pivot axis and a semi-circular knotch is formed in the periphery of the plate. The seat base frame carries a locking member of circular cross-section which is rotatable and which has a recess cut of its periphery adjacent to the said plate. The radius of the locking member corresponds with the radius of the semicircular cut out in the said plate and the rod is jour nalled for rotation in the seat base frame.When the seat back is in the tilted forward position the knotch is aligned coaxially with the axis ofthe locking bar and upon rotation ofthe locking member the non-cut away portions of the bar engages with the semicircular knotch in the plate thus preventing further tilting of the seat back with respect to the seat base.
A locking device preferably key or solenoid operated rotates the bar and locks it in position thus preventing use of the seat.
In an alternative embodiment illustrated in Fig. 3 a pair of location pegs 40, 42 project from the frame 53 of the seat back, and a catch 44 provided with an arcuate slot 46 is attached to a seat base frame 52. In the normal position of the seat back the arcuate slot engages the first location peg 40 to hold the back of the seat in position. To tilt the seat back forward a lever 48 is depressed which allows the catch 44to pivot with respect to the seat base frame. The catch is resiliently biased so that when the lever 48 is released the catch pivots in a clockwise direction, as shown, and the slot engages the second location peg 42.
Locking means 50 are provided which lock the position of the catch and thus the seat is held in the tilted position. The locking means 50 are similar to that described with reference to the first embodiment and comprises a lock body member having a plunger operable by key. As illustrated the lock body member is secured to the seat base frame 52 and the plunger engages in a recess 54 in the catch 44. Alternatively the lock body may be attached to the catch 44 onto the seat base frame and the plunger may engage in a recess in one or both of the seat base frame orthe seat back frame.
Conveniently the seat base frame 52 is adjustable with respect to a mounting frame 56 and the mounting frame is provided with an upstanding bracket 58.
The bracket 58 has a recess which is engageable by the plunger of the locking means 50. The bracket 58 is positioned towards the front of the mounting frame so that the seat can be locked in a forward position, with the seat tilted, thus preventing the seat from being pushed back in the tilted position and permitting the car to be driven.
Claims (13)
1. A seat comprising a seat back frame pivotably disposed with respect to a seat base frame to permit tilting of the seat back towards and away from the seat base, and a mounting frame secured to the seat base frame for fixing the seat, catch means operable by a locking device and carried by one of the seat base frame and the seat back frame and having a plunger or locking member aligned in the direction ofthe pivotal axis of the seat back, and which is received in a recess in the other of the seat back and seat base frame to lock the seat back in a tilted position so as to prevent use ofthe seat.
2. A seat as claimed in claim 1 in which the plunger of the catch means is operable by a releasable key.
3. A seat as claimed in claim 1 in which upon tilting of the seat the plunger is displaced axially by resilient means into the recess and is withdrawable from the recess by actuation of the locking device with a releasable key.
4. A seat as claimed in claims 1,2 or 3 in which the catch means further comprises a locking bar which is secured to one of the seat base frame and seat back frame with axial play and is displaceable by the plunger so as to engage in a further recess in one of the said seat base frame and seat back frame on the side of the seat remote from the locking device to further locate the seat back in the tilted position.
5. A seat as claimed in claim 1 in which the seat back frame carries a locking plate having a semicircular recess formed in the periphery thereof, which periphery is coaxial with the pivot axis of the seat back, and the locking member comprises a circularrod having a recess therein which permits pivoting of the seat back, the rod being rotatable by the locking device when the semi-circular recess is aligned coaxiallywith the axis of the locking member so as to lock the seat in the pivoted posi tion.
6. A seat as claimed in any preceding claim in which the seat back is pivoted towards the seat base and locked in position.
7. A seat as claimed in any preceding claim in which the seat base frame is slidable with respect to the mounting frame and the catch means or locking member engages with the mounting frame so as to lock the seat base frame with respect to the mounting frame.
8. A seat as claimed in any preceding claim for a driver's seat of a motor vehicle in which the seat back is pivoted towards the steering wheel of the vehicle
9. A seat for a vehicle comprising a seat back frame pivotally disposed with respect to a seat base frame to permit tilting of the seat back and a mounting frame slidably attached to the seat base frame to facilitate for and aft adjustment of the seat with respect to the mounting frame, one of the seat base frame, seat back frame or mounting frame carrying catch means which is engageable lockingly with the other of the seat base frame, seat back frame or mounting frame so as to lock the seat in a tilted position and in a forwardly displaced position preventing use of the seat and operation of the vehicle.
10. A seat as claimed in claim 9 in which the catch means is lockable by means of a lock having a releasably key.
11. A seat as claimed in claim 9 or 10 in which the catch means is disposed on the mounting frame and comprises a locking device having a plunger which is engageable with respective recesses in the base frame and back frame.
12. Aseat as claimed in claim 1 or 8 in which the catch means is operable by an electric solenoid from a remote switch.
13. A seat constructed and adapted to operate substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8029703A GB2059757A (en) | 1979-09-13 | 1980-09-15 | Improvements in or relating to seats |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7931833 | 1979-09-13 | ||
| GB8029703A GB2059757A (en) | 1979-09-13 | 1980-09-15 | Improvements in or relating to seats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2059757A true GB2059757A (en) | 1981-04-29 |
Family
ID=26272871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8029703A Withdrawn GB2059757A (en) | 1979-09-13 | 1980-09-15 | Improvements in or relating to seats |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2059757A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2132955A (en) * | 1982-09-18 | 1984-07-18 | Kenneth Ivor Jordan | A vehicle anti-theft means |
| GB2153764A (en) * | 1984-02-10 | 1985-08-29 | Charles Harold Heathcote | Vehicle security device |
| FR2597804A1 (en) * | 1986-04-29 | 1987-10-30 | Peugeot Cycles | SEAT WITH FOLDING BACK AND IN PARTICULAR FRONT SEAT OF MOTOR VEHICLE |
| GB2191981A (en) * | 1986-06-24 | 1987-12-31 | Robert Murray Johnson | Method of and means for immobilising motor vehicles |
| EP0276186A1 (en) * | 1987-01-23 | 1988-07-27 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Inertia-responsive vehicle seat latch mechanism |
| GB2217278A (en) * | 1988-04-09 | 1989-10-25 | John Lenton | Car security device |
| GB2245824A (en) * | 1990-07-11 | 1992-01-15 | Royston Harry Dennis Thompson | Lockable security seat for motor vehicles |
| GB2248593A (en) * | 1990-07-26 | 1992-04-15 | John Michael Andrew Murray | Anti-theft device for a vehicle |
| GB2259066A (en) * | 1991-08-30 | 1993-03-03 | David Victor Read | Anti-theft device for vehicles |
| GB2262222A (en) * | 1991-05-23 | 1993-06-16 | Michael John Aldridge | Vehicle security arrangement |
| DE4206388A1 (en) * | 1992-02-29 | 1993-09-02 | Hugo Lisson | ANTI-THEFT SECURITY FOR A VEHICLE |
| US5415458A (en) * | 1993-09-21 | 1995-05-16 | Kim; Ki I. | Driver seat lock mechanism for preventing vehicle theft |
| AU660806B2 (en) * | 1992-06-15 | 1995-07-06 | John Henry Mallia | Vehicle anti theft apparatus |
| GB2314011A (en) * | 1996-06-12 | 1997-12-17 | Steven Brian Dennis | Anti-theft motor vehicle seat |
| DE19710886C1 (en) * | 1997-03-15 | 1998-06-04 | Rolf Willer | Antitheft device for vehicle driver's seat |
| DE19744523A1 (en) * | 1997-10-09 | 1999-05-06 | Itt Mfg Enterprises Inc | Security system for vehicle |
| US6048019A (en) * | 1998-05-28 | 2000-04-11 | Tauber; Arkadi | Car security system |
| GB2349809A (en) * | 1999-05-12 | 2000-11-15 | Andrew Grainger | Vehicle anti-theft system |
| GB2379384A (en) * | 2001-09-07 | 2003-03-12 | Johnson Controls Tech Co | Foldable seat |
-
1980
- 1980-09-15 GB GB8029703A patent/GB2059757A/en not_active Withdrawn
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2132955A (en) * | 1982-09-18 | 1984-07-18 | Kenneth Ivor Jordan | A vehicle anti-theft means |
| GB2153764A (en) * | 1984-02-10 | 1985-08-29 | Charles Harold Heathcote | Vehicle security device |
| FR2597804A1 (en) * | 1986-04-29 | 1987-10-30 | Peugeot Cycles | SEAT WITH FOLDING BACK AND IN PARTICULAR FRONT SEAT OF MOTOR VEHICLE |
| EP0246124A1 (en) * | 1986-04-29 | 1987-11-19 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Seat with a tiltable backrest and particularly a front seat of a motor car |
| GB2191981A (en) * | 1986-06-24 | 1987-12-31 | Robert Murray Johnson | Method of and means for immobilising motor vehicles |
| EP0276186A1 (en) * | 1987-01-23 | 1988-07-27 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Inertia-responsive vehicle seat latch mechanism |
| FR2609948A1 (en) * | 1987-01-23 | 1988-07-29 | Peugeot Cycles | INERTIAL LOCKING DEVICE FOR VEHICLE SEAT |
| GB2217278A (en) * | 1988-04-09 | 1989-10-25 | John Lenton | Car security device |
| GB2245824A (en) * | 1990-07-11 | 1992-01-15 | Royston Harry Dennis Thompson | Lockable security seat for motor vehicles |
| GB2248593A (en) * | 1990-07-26 | 1992-04-15 | John Michael Andrew Murray | Anti-theft device for a vehicle |
| GB2262222A (en) * | 1991-05-23 | 1993-06-16 | Michael John Aldridge | Vehicle security arrangement |
| GB2259066A (en) * | 1991-08-30 | 1993-03-03 | David Victor Read | Anti-theft device for vehicles |
| DE4206388A1 (en) * | 1992-02-29 | 1993-09-02 | Hugo Lisson | ANTI-THEFT SECURITY FOR A VEHICLE |
| AU660806B2 (en) * | 1992-06-15 | 1995-07-06 | John Henry Mallia | Vehicle anti theft apparatus |
| US5415458A (en) * | 1993-09-21 | 1995-05-16 | Kim; Ki I. | Driver seat lock mechanism for preventing vehicle theft |
| GB2314011A (en) * | 1996-06-12 | 1997-12-17 | Steven Brian Dennis | Anti-theft motor vehicle seat |
| DE19710886C1 (en) * | 1997-03-15 | 1998-06-04 | Rolf Willer | Antitheft device for vehicle driver's seat |
| DE19744523A1 (en) * | 1997-10-09 | 1999-05-06 | Itt Mfg Enterprises Inc | Security system for vehicle |
| US6048019A (en) * | 1998-05-28 | 2000-04-11 | Tauber; Arkadi | Car security system |
| GB2349809A (en) * | 1999-05-12 | 2000-11-15 | Andrew Grainger | Vehicle anti-theft system |
| GB2349809B (en) * | 1999-05-12 | 2004-01-07 | Andrew Grainger | Vehicle anti-theft seat system |
| GB2379384A (en) * | 2001-09-07 | 2003-03-12 | Johnson Controls Tech Co | Foldable seat |
| GB2379384B (en) * | 2001-09-07 | 2005-02-16 | Johnson Controls Tech Co | Foldable seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |