US3500946A - Seat operated power cutoff time delay - Google Patents
Seat operated power cutoff time delay Download PDFInfo
- Publication number
- US3500946A US3500946A US695129A US3500946DA US3500946A US 3500946 A US3500946 A US 3500946A US 695129 A US695129 A US 695129A US 3500946D A US3500946D A US 3500946DA US 3500946 A US3500946 A US 3500946A
- Authority
- US
- United States
- Prior art keywords
- circuit
- relay
- time delay
- ignition
- seat
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
- B60K28/04—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to presence or absence of the driver, e.g. to weight or lack thereof
Definitions
- a time delay relay is used in a seat controlled safety circuit for interrupting the ignition system of a vehicle engine.
- a transistor is used in conjunction with the time delay relay and means are employed to positively disconnect the transistor from the power source when the relay is opened, even though the ignition switch at the operators station is left on.
- the means employed include a bridging circuit with a diode between the starter and ignition circuits which are operable to initially energize the time delay relay.
- This invention relates to a seat operated safety system with time delay to prevent disabling the vehicle when the seat is vacated for a short period of time.
- seat operated safety devices of various types, including mechanical and electrical devices.
- At least one such electrical prior art device suggests the use of a mechanical time delay mechanism to prevent operation of the seat operated switch (for disabling the ignition circuit) long enough to permit cranking of the vehicle engine by hand or delivery of goods by a deliveryman.
- Electric time delays for various applications have been suggested heretofore to prevent operation of cutoff switches when a member, whose movement is sensed to operate the safety device, is momentarily shifted.
- an electrical time delay is incorporated in a seat operated ignition cutoff safety system, which employs a transistor in the cutoff relay.
- the relay circuit In order to prevent current flow through the transistor after opening of the cutoff switch, the relay circuit is not connected to the ignition circuit on the battery side of the cutoff relay, instead the relay circuit, with its transistor, is connected to the starter circuit through a diode to effect initial energization (closing) of the cutoff relay when the operator is seated upon the starter switch being closed.
- the seat switch is placed in the base circuit of the tran sistor and thus may be of small capacity and inexpensive in view of the low power carried by that circuit.
- the present invention is illustrated schematically in the electrical system for a Spark ignition engine powered vehicle.
- a source of electric power in the form of a storage battery 11, supplies current for the starting motor circuit 12 and the ignition circuit 13.
- the starting motor 14 is controlled through a relay 15 operated by starter relay circuit 17 which includes a manually operated push button starter switch 18 and the operating coil 19 of relay 15.
- a clamping diode 20 prevents the inductive voltage spike generated by the collapse of the magnetic field of coil 19 from damaging diode 32 in bridging circuit 43.
- the ignition circuit includes a manually operated ignition switch 21, having the usual open and closed positions, an ignition coil 22, distributor 23 and spark plugs 24, only one of which is shown.
- An electric time delay device 26 includes a relay 27 whose contacts 28 are in the ignition circuit 13.
- a relay operating circuit 31 is connected to the starting motor relay operating circuit 17 through diode 32 and to the ignition circuit 13 on the ignition system side of relay 27 through diode 33.
- the diode 32 prevents current flow from the relay operating circuit to the starter circuit 17.
- the relay operating circuit 31 of the time delay device in addition to diode 33 includes coil 34 of relay 27 and an NPN transistor 36, the base circuit 37 of which includes switch 38 operated by a hinged operators seat 39.
- the time delay device 26 is primarily needed to prevent interruption of the ignition circuit upon momentary opening of the seat switch 38, which may occur when the lift truck bounces over rough flooring or uneven ground causing the operators weight to be removed from the seat.
- the energization of the time delay relay 27 is achieved through control circuit means including circuits 17, 43, 31 and 37, independently of ignition switch 21. This permits the opening of relay contacts 28 to electrically isolate the operating circuit 31 of the time delay device 26.
- Mechanism for interrupting the ignition circuit connecting the ignition system for a vehicle engine to an electric power source when the operators station on the vehicle is vacated including:
- an electric time delay device including a time delay relay having contacts in said ignition circuit intermediate said ignition switch and said ignition system, and
- control circuit means independent of said ignition switch providing initial energization of said relay including a seat operated switch
- a starter circuit and a bridging circuit interconnecting said starter circuit and said relay operating circuit including a first diode permitting current flow from said starter circuit to said relay operating circuit and preventing reverse flow.
- control circuit means includes a relay operating circuit, a transistor in said operating circuit and a base circuit connected to said operating circuit and transistor and wherein said seat operated switch is in said base circuit.
- time delay relay includes a coil and wherein said relay operating circuit includes a clamping diode across said coil.
- relay operating circuit is connected to the ignition system side of said ignition circuit and further comprising a second diode in said relay operating circuit between the latters connections with said ignition circuit and bridging circuit.
- said starter circuit includes a relay coil and a clamping diode connected to the starter switch side of said coil to prevent negative voltage spikes from said relay coil from damaging said first diode.
- control circuit means includes a relay operating circuit connected to said ignition circuit on the ignition system side of said relay and wherein said seat operated switch controls the operation of said relay operating circuit.
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69512968A | 1968-01-02 | 1968-01-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3500946A true US3500946A (en) | 1970-03-17 |
Family
ID=24791698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US695129A Expired - Lifetime US3500946A (en) | 1968-01-02 | 1968-01-02 | Seat operated power cutoff time delay |
Country Status (3)
Country | Link |
---|---|
US (1) | US3500946A (en) |
FR (1) | FR1601910A (en) |
GB (1) | GB1199248A (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3838748A (en) * | 1973-01-30 | 1974-10-01 | Ridersafe Syst Inc | Safety system for vehicles |
US3941204A (en) * | 1973-10-08 | 1976-03-02 | Nippondenson Co., Ltd. | Engine automatic control system for vehicles |
US4075443A (en) * | 1976-08-11 | 1978-02-21 | Towmotor Corporation | Cushion spring safety system |
US4107645A (en) * | 1971-12-15 | 1978-08-15 | Allied Chemical Corporation | Seat belt system with starter engine lock and alarm |
US4136752A (en) * | 1977-05-13 | 1979-01-30 | Towmotor Corporation | Vehicle brake control system |
US4172980A (en) * | 1978-06-30 | 1979-10-30 | Towmotor Corporation | Device for disabling power under certain safety conditions |
US4361741A (en) * | 1980-12-19 | 1982-11-30 | Towmotor Corporation | Switch actuator apparatus |
US4381042A (en) * | 1981-01-12 | 1983-04-26 | Chrysler Corporation | Excessive idle termination system |
US4389154A (en) * | 1981-05-13 | 1983-06-21 | Sperry Corporation | Time delay for a seat switch activated loader boom lock |
US4572319A (en) * | 1984-10-03 | 1986-02-25 | Fail Safe Brake Corporation | Automatic vehicle braking system |
US4607199A (en) * | 1984-09-07 | 1986-08-19 | Outboard Marine Corporation | Computer controlled safety seat switch |
WO1986004869A1 (en) * | 1985-02-14 | 1986-08-28 | Fail Safe Brake Corporation | Vehicle brake actuator arrangement |
US4678058A (en) * | 1986-04-07 | 1987-07-07 | Outboard Marine Corporation | Vehicle seat switch |
US4759185A (en) * | 1987-09-18 | 1988-07-26 | Deere & Company | Operator presence switch with service by-pass |
US4787205A (en) * | 1985-02-14 | 1988-11-29 | Fontaine William G | Vehicle brake system |
US5101802A (en) * | 1986-10-23 | 1992-04-07 | Ariens Company | Spark ignition safety circuit |
US5109945A (en) * | 1988-10-07 | 1992-05-05 | Sumitomo Yale Co., Ltd. | Safety device for use when driver leaves a seat of an industrial vehicle |
US5156232A (en) * | 1989-04-13 | 1992-10-20 | Fumio Muroya | Operation controlling apparatus of the passenger working machine |
US5425431A (en) * | 1994-02-18 | 1995-06-20 | Clark Equipment Company | Interlock control system for power machine |
US5542493A (en) * | 1994-02-22 | 1996-08-06 | Clark Equipment Company | Hall effect sensor assembly |
US5577876A (en) * | 1994-02-22 | 1996-11-26 | Clark Equipment Company | Hydraulic interblock system |
US6189646B1 (en) | 1998-11-30 | 2001-02-20 | Clark Equipment Company | Traction lock/momentary override |
US20030226703A1 (en) * | 2002-06-11 | 2003-12-11 | Akira Amemiya | Seatbelt safety device for vehicles |
US20040055558A1 (en) * | 2002-09-25 | 2004-03-25 | Mcelroy Jay | System and method for vehicle idle reduction |
US20090160245A1 (en) * | 2006-07-26 | 2009-06-25 | Thomas Accardi | Anti-rollaway device for trucks and equipment with fluid and electrically actuated brakes |
US20090223475A1 (en) * | 2008-03-10 | 2009-09-10 | Grant Thomas Wilson | Implement With Two Hand Interlock |
US20100212988A1 (en) * | 2007-06-29 | 2010-08-26 | Ben Nemec | Seat assembly with ignition switch and switch actuator |
US8393432B2 (en) | 2011-03-18 | 2013-03-12 | Seats, Inc. | Vehicle seat switch actuator |
US20150088404A1 (en) * | 2012-04-19 | 2015-03-26 | Audi Ag | Motor vehicle comprising a drive device that automatically turns off when a person gets out of the motor vehicle, and corresponding method for the motor vehicle |
US9604539B1 (en) * | 2014-07-09 | 2017-03-28 | Lourens Blignaut | Autostop safety system |
CN114759895A (en) * | 2022-06-16 | 2022-07-15 | 北京小马智卡科技有限公司 | Time sequence control circuit, electronic device, electronic equipment and vehicle |
US11433767B2 (en) | 2019-09-18 | 2022-09-06 | George Rodriguez | Vehicle kill switch assembly |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2427927A1 (en) * | 1978-06-08 | 1980-01-04 | Fenwick Manutention Ste Indle | Safety system for vehicle with automatic transmission - has signal responsive parking brake and neutral setting controls operable when driver leaves seat |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2606626A (en) * | 1952-08-12 | Automatic control device for the | ||
US2807729A (en) * | 1954-11-17 | 1957-09-24 | Gen Motors Corp | Control circuit for engine starting and ignition system |
US3154168A (en) * | 1963-06-10 | 1964-10-27 | John C Wilmot | Automobile engine time delay stop safety control |
US3321663A (en) * | 1964-03-10 | 1967-05-23 | William A Poznik | Control system for motor vehicles |
US3388288A (en) * | 1966-04-13 | 1968-06-11 | Delman Co | Vehicle light control system to deenergize the light circuit a predetermined time after the ignition is deenergized |
-
1968
- 1968-01-02 US US695129A patent/US3500946A/en not_active Expired - Lifetime
- 1968-12-23 GB GB61089/68A patent/GB1199248A/en not_active Expired
- 1968-12-27 FR FR1601910D patent/FR1601910A/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2606626A (en) * | 1952-08-12 | Automatic control device for the | ||
US2807729A (en) * | 1954-11-17 | 1957-09-24 | Gen Motors Corp | Control circuit for engine starting and ignition system |
US3154168A (en) * | 1963-06-10 | 1964-10-27 | John C Wilmot | Automobile engine time delay stop safety control |
US3321663A (en) * | 1964-03-10 | 1967-05-23 | William A Poznik | Control system for motor vehicles |
US3388288A (en) * | 1966-04-13 | 1968-06-11 | Delman Co | Vehicle light control system to deenergize the light circuit a predetermined time after the ignition is deenergized |
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4107645A (en) * | 1971-12-15 | 1978-08-15 | Allied Chemical Corporation | Seat belt system with starter engine lock and alarm |
US3838748A (en) * | 1973-01-30 | 1974-10-01 | Ridersafe Syst Inc | Safety system for vehicles |
US3941204A (en) * | 1973-10-08 | 1976-03-02 | Nippondenson Co., Ltd. | Engine automatic control system for vehicles |
US4075443A (en) * | 1976-08-11 | 1978-02-21 | Towmotor Corporation | Cushion spring safety system |
US4136752A (en) * | 1977-05-13 | 1979-01-30 | Towmotor Corporation | Vehicle brake control system |
US4172980A (en) * | 1978-06-30 | 1979-10-30 | Towmotor Corporation | Device for disabling power under certain safety conditions |
US4361741A (en) * | 1980-12-19 | 1982-11-30 | Towmotor Corporation | Switch actuator apparatus |
US4381042A (en) * | 1981-01-12 | 1983-04-26 | Chrysler Corporation | Excessive idle termination system |
US4389154A (en) * | 1981-05-13 | 1983-06-21 | Sperry Corporation | Time delay for a seat switch activated loader boom lock |
US4607199A (en) * | 1984-09-07 | 1986-08-19 | Outboard Marine Corporation | Computer controlled safety seat switch |
US4572319A (en) * | 1984-10-03 | 1986-02-25 | Fail Safe Brake Corporation | Automatic vehicle braking system |
WO1986004869A1 (en) * | 1985-02-14 | 1986-08-28 | Fail Safe Brake Corporation | Vehicle brake actuator arrangement |
US4787205A (en) * | 1985-02-14 | 1988-11-29 | Fontaine William G | Vehicle brake system |
US4678058A (en) * | 1986-04-07 | 1987-07-07 | Outboard Marine Corporation | Vehicle seat switch |
US5101802A (en) * | 1986-10-23 | 1992-04-07 | Ariens Company | Spark ignition safety circuit |
US4759185A (en) * | 1987-09-18 | 1988-07-26 | Deere & Company | Operator presence switch with service by-pass |
US5109945A (en) * | 1988-10-07 | 1992-05-05 | Sumitomo Yale Co., Ltd. | Safety device for use when driver leaves a seat of an industrial vehicle |
US5156232A (en) * | 1989-04-13 | 1992-10-20 | Fumio Muroya | Operation controlling apparatus of the passenger working machine |
US5425431A (en) * | 1994-02-18 | 1995-06-20 | Clark Equipment Company | Interlock control system for power machine |
US5542493A (en) * | 1994-02-22 | 1996-08-06 | Clark Equipment Company | Hall effect sensor assembly |
US5577876A (en) * | 1994-02-22 | 1996-11-26 | Clark Equipment Company | Hydraulic interblock system |
US6189646B1 (en) | 1998-11-30 | 2001-02-20 | Clark Equipment Company | Traction lock/momentary override |
US20030226703A1 (en) * | 2002-06-11 | 2003-12-11 | Akira Amemiya | Seatbelt safety device for vehicles |
US20040055558A1 (en) * | 2002-09-25 | 2004-03-25 | Mcelroy Jay | System and method for vehicle idle reduction |
US9248817B2 (en) * | 2006-07-26 | 2016-02-02 | Thomas Accardi | Anti-rollaway device for trucks and equipment with fluid and electrically actuated brakes |
US20090160245A1 (en) * | 2006-07-26 | 2009-06-25 | Thomas Accardi | Anti-rollaway device for trucks and equipment with fluid and electrically actuated brakes |
US20100212988A1 (en) * | 2007-06-29 | 2010-08-26 | Ben Nemec | Seat assembly with ignition switch and switch actuator |
US8025119B2 (en) * | 2007-06-29 | 2011-09-27 | Seats, Inc. | Seat assembly with ignition switch and switch actuator |
US20090223475A1 (en) * | 2008-03-10 | 2009-09-10 | Grant Thomas Wilson | Implement With Two Hand Interlock |
US8393432B2 (en) | 2011-03-18 | 2013-03-12 | Seats, Inc. | Vehicle seat switch actuator |
US20150088404A1 (en) * | 2012-04-19 | 2015-03-26 | Audi Ag | Motor vehicle comprising a drive device that automatically turns off when a person gets out of the motor vehicle, and corresponding method for the motor vehicle |
US9604539B1 (en) * | 2014-07-09 | 2017-03-28 | Lourens Blignaut | Autostop safety system |
US11433767B2 (en) | 2019-09-18 | 2022-09-06 | George Rodriguez | Vehicle kill switch assembly |
CN114759895A (en) * | 2022-06-16 | 2022-07-15 | 北京小马智卡科技有限公司 | Time sequence control circuit, electronic device, electronic equipment and vehicle |
CN114759895B (en) * | 2022-06-16 | 2022-09-16 | 北京小马智卡科技有限公司 | Time sequence control circuit, electronic device, electronic equipment and vehicle |
Also Published As
Publication number | Publication date |
---|---|
GB1199248A (en) | 1970-07-15 |
FR1601910A (en) | 1970-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WOODS KATHLEEN D., AS TRUSTEE Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001 Effective date: 19830329 Owner name: CONNECTICUT NATIONAL BANK THE, A NATIONAL BANKING Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001 Effective date: 19830329 |
|
AS | Assignment |
Owner name: AC MATERIAL HANDLING CORPORATION, 777 MANOR PARK D Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIS-CHALMERS CORPORATION, A CORP. OF DE.;REEL/FRAME:004615/0183 |
|
AS | Assignment |
Owner name: FIRST NATIONAL BANK OF CHICAGO, THE Free format text: SECURITY INTEREST;ASSIGNOR:AC MATERIAL HANDLING CORPORATION, AN OH CORP;REEL/FRAME:004648/0689 Effective date: 19860731 |
|
AS | Assignment |
Owner name: ALLIS-CHALMERS CORPORATION,WISCONSIN Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONNECTICUT NATIONAL BANK, THE;REEL/FRAME:004686/0798 Effective date: 19860719 Owner name: ALLIS-CHALMERS CORPORATION, BOX 512, MILWAUKEE, WI Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONNECTICUT NATIONAL BANK, THE;REEL/FRAME:004686/0798 Effective date: 19860719 Owner name: ALLIS-CHALMERS CORPORATION, BOX 512, MILWAUKEE, WI Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONNECTICU NATIONAL BANK, THE;REEL/FRAME:004680/0807 Effective date: 19860714 |