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IT1257304B - Power operated linear actuator for remote operation of machine e.g. concrete mixing truck - includes motor and step-down gear train, push-pull rod connected with movable threaded nut and clutch between gear train and screw shaft - Google Patents

Power operated linear actuator for remote operation of machine e.g. concrete mixing truck - includes motor and step-down gear train, push-pull rod connected with movable threaded nut and clutch between gear train and screw shaft

Info

Publication number
IT1257304B
IT1257304B ITTO920951A IT1257304B IT 1257304 B IT1257304 B IT 1257304B IT TO920951 A ITTO920951 A IT TO920951A IT 1257304 B IT1257304 B IT 1257304B
Authority
IT
Italy
Prior art keywords
carriage
gear train
forth
threaded nut
push
Prior art date
Application number
Other languages
Italian (it)
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
Application filed filed Critical
Priority to IT92TO951 priority Critical patent/IT1257304B/en
Publication of ITTO920951A0 publication Critical patent/ITTO920951A0/en
Publication of ITTO920951A1 publication Critical patent/ITTO920951A1/en
Application granted granted Critical
Publication of IT1257304B publication Critical patent/IT1257304B/en

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  • Transmission Devices (AREA)

Abstract

The linear actuator has an elongate frame portion and a reciprocally travelling carriage portion to move forth and back along the elongate frame portion. The carriage portion has a threaded nut portion movable forth and back with the carriage portion, and a push-pull rod portion attached to the carriage portion for movement. A releasable drive portion on the frame produces forth and back movement of the carriage portion and the drive portion. It has an elongate rotary screw portion driving the carriage portion, the threaded nut portion and the screw portion defining a reversible driving connection whereby to accommodate driving the carriage portion in forth and back directions as the screw portion is rotated in opposite directions. It also accommodates moving of the carriage in forth and back directions under influence of the machine control when the screw portion is released to freely turn, an incrementally movable and reversible motor portion and controller. The reversible motor portion rotates the screw portion and produces travel of the carriage portion alternately in opposite directions as the motor is reversed. An electromagnetically engageable and releasable clutch portion is connected between the motor portion and the screw portion.
IT92TO951 1992-11-24 1992-11-24 Power operated linear actuator for remote operation of machine e.g. concrete mixing truck - includes motor and step-down gear train, push-pull rod connected with movable threaded nut and clutch between gear train and screw shaft IT1257304B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT92TO951 IT1257304B (en) 1992-11-24 1992-11-24 Power operated linear actuator for remote operation of machine e.g. concrete mixing truck - includes motor and step-down gear train, push-pull rod connected with movable threaded nut and clutch between gear train and screw shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT92TO951 IT1257304B (en) 1992-11-24 1992-11-24 Power operated linear actuator for remote operation of machine e.g. concrete mixing truck - includes motor and step-down gear train, push-pull rod connected with movable threaded nut and clutch between gear train and screw shaft

Publications (3)

Publication Number Publication Date
ITTO920951A0 ITTO920951A0 (en) 1992-11-24
ITTO920951A1 ITTO920951A1 (en) 1994-05-24
IT1257304B true IT1257304B (en) 1996-01-12

Family

ID=11410876

Family Applications (1)

Application Number Title Priority Date Filing Date
IT92TO951 IT1257304B (en) 1992-11-24 1992-11-24 Power operated linear actuator for remote operation of machine e.g. concrete mixing truck - includes motor and step-down gear train, push-pull rod connected with movable threaded nut and clutch between gear train and screw shaft

Country Status (1)

Country Link
IT (1) IT1257304B (en)

Also Published As

Publication number Publication date
ITTO920951A1 (en) 1994-05-24
ITTO920951A0 (en) 1992-11-24

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971127