GB1522500A – Power steering control system for industrial trucks
– Google Patents
GB1522500A – Power steering control system for industrial trucks
– Google Patents
Power steering control system for industrial trucks
Info
Publication number
GB1522500A
GB1522500A
GB52682/75A
GB5268275A
GB1522500A
GB 1522500 A
GB1522500 A
GB 1522500A
GB 52682/75 A
GB52682/75 A
GB 52682/75A
GB 5268275 A
GB5268275 A
GB 5268275A
GB 1522500 A
GB1522500 A
GB 1522500A
Authority
GB
United Kingdom
Prior art keywords
coil
contacts
power steering
accelerator pedal
switch
Prior art date
1974-12-24
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
Application number
GB52682/75A
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.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
Toyoda Automatic Loom Works Ltd
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.)
1974-12-24
Filing date
1975-12-23
Publication date
1978-08-23
1975-12-23
Application filed by Toyoda Jidoshokki Seisakusho KK, Toyoda Automatic Loom Works Ltd
filed
Critical
Toyoda Jidoshokki Seisakusho KK
1978-08-23
Publication of GB1522500A
publication
Critical
patent/GB1522500A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B66—HOISTING; LIFTING; HAULING
B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
B66F9/075—Constructional features or details
B66F9/07568—Steering arrangements
B—PERFORMING OPERATIONS; TRANSPORTING
B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62D—MOTOR VEHICLES; TRAILERS
B62D5/00—Power-assisted or power-driven steering
B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
Abstract
1522500 Power steering motor control TOYODA JIDO SHOKKI SEISAKUSHO KK 23 Dec 1975 [24 Dec 1974] 52682/75 Heading B7H A power steering control system, for an industrial truck having separate electric motors for hydraulic pumps of the steering and a lifting circuit, wherein the steering motor 20 is operable in response to depression of the accelerator pedal and switched off after a predetermined delay on pedal release. A vehicle battery is connected via a fuse 30 and a normally open relay 40 to the steering motor 20. Relay 40 is shunted by a key-operated switch 50 in series with an accelerator pedal controlled switch 60 and a coil 71 which forms part .of a time delay mechanism 70, the contacts of which are in parallel with switch 60 and coil 71. A further coil 42 is arranged in series with contacts 42. When the driver switches on and depresses the accelerator pedal switches 50, 60 are respectively closed and coil 71 is actuated causing immediate closure of contacts 72 to actuate coil 42. Energizing coil 42 causes closure of relay 40 and tho power steering becomes operable. When the accelerator pedal is released switch 60 opens de-energizing coil 71 and opening contacts 72, however, the time delay mechanism is such that contacts 72 are not opened immediately so that power steering is available for a time after the pedal release.
GB52682/75A
1974-12-24
1975-12-23
Power steering control system for industrial trucks
Expired
GB1522500A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP157675
1974-12-24
Publications (1)
Publication Number
Publication Date
GB1522500A
true
GB1522500A
(en)
1978-08-23
Family
ID=35745973
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB52682/75A
Expired
GB1522500A
(en)
1974-12-24
1975-12-23
Power steering control system for industrial trucks
Country Status (2)
Country
Link
US
(1)
US4008779A
(en)
GB
(1)
GB1522500A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0050874A1
(en)
*
1980-10-29
1982-05-05
Nissan Motor Co., Ltd.
Control arrangement for a power steering motor of a battery operated vehicle
Families Citing this family (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2030529B
(en)
*
1978-09-25
1982-12-15
Eaton Gmbh
Circuit controlling the energisation of power steering in a battery powered vehicle
DE2931541C2
(en)
*
1979-08-03
1986-09-11
O & K Orenstein & Koppel Ag, 1000 Berlin
Switchable hydraulic steering aid for a vehicle driven by an electric motor
JPS56108700A
(en)
*
1980-01-28
1981-08-28
Nissan Motor
Battery fork lift
AU544657B2
(en)
*
1980-10-03
1985-06-06
Tokai Trw & Co., Ltd.
Power steering apparatus
JPS57198169A
(en)
*
1981-05-29
1982-12-04
Tokai T R W Kk
Motor-driven oil pressure power steering unit
JPS57201762A
(en)
*
1981-06-03
1982-12-10
Mazda Motor Corp
Power steering gear
MX156827A
(en)
*
1983-05-05
1988-10-03
Allied Corp
IMPROVEMENTS TO THE STEERING MECHANISM ASSISTED BY ELECTRICAL ENERGY FOR AN AUTOMOTIVE VEHICLE
DE3686301T2
(en)
*
1985-08-30
1993-01-21
Texas Instruments Inc
INTRINSICALLY SAFE BRAKE FOR A MULTI-WHEELED VEHICLE WITH MOTOR-CONTROLLED STEERING.
GB8601841D0
(en)
*
1986-01-25
1986-02-26
Yale Materials Handling Ltd
Vehicles
US4873475A
(en)
*
1987-07-29
1989-10-10
Nissan Motor Co., Ltd.
Electrically powered power steering system for industrial vehicle or the like
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3134063A
(en)
*
1959-06-08
1964-05-19
Clark Equipment Co
Plural battery and plural motor control system for industrial truck
DE2117357A1
(en)
*
1971-04-08
1972-10-19
Linde Ag
Electrical time delay switch connected to a DC voltage source
1975
1975-12-08
US
US05/638,402
patent/US4008779A/en
not_active
Expired – Lifetime
1975-12-23
GB
GB52682/75A
patent/GB1522500A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0050874A1
(en)
*
1980-10-29
1982-05-05
Nissan Motor Co., Ltd.
Control arrangement for a power steering motor of a battery operated vehicle
Also Published As
Publication number
Publication date
US4008779A
(en)
1977-02-22
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Legal Events
Date
Code
Title
Description
1978-12-20
PS
Patent sealed [section 19, patents act 1949]
1985-08-21
PCNP
Patent ceased through non-payment of renewal fee
