US 9,284,171 B2Granted

Good-grip winch for handling loads

AssigneeFixator

InventorMyrtil Ouvrard

Life of this patent

Estimating the term…

Loading patent…

Abstract

A friction grip hoist (1) includes: at least one body (2); a pulley (3) mounted on the body, the pulley including a pin (4) and a wheel (5) having an outer peripheral groove (6) for receiving a cable; drive elements (7) for driving rotation of the wheel; and holder elements (15) for holding the cable inside the groove (6) of the wheel. The pin, referred to as a “dynamometer” pin, about which the wheel of the pulley is mounted to rotate is fitted with measurement elements (11) for measuring at least one magnitude representative of at least radial forces or loads exerted on the pin, and the hoist includes a monitor unit fitted with processor elements and with elements for issuing an alert signal and/or for controlling the elements (7) for driving rotation of the wheel of the pulley as a function of the at least one measured magnitude.

Claims14

Dependent claims

A friction grip hoist (1) for handling loads, said hoist comprising:

at least one body (2);
a pulley (3) mounted on said body (2), said pulley (3) comprising a pin (4) and a wheel (5) arranged on said pin (4), said wheel (5), being a grooved wheel provided with an outer peripheral groove (6) for receiving a cable (20);
drive means (7) for driving rotation of said wheel (5);
and
holder means (15) suitable for exerting a thrust force towards a bottom of the groove (6) of the wheel (5) in order to hold the cable (20) inside the groove (6) of the wheel (5) by pressing there against;
wherein
the pin (4), being a dynamometer pin, about which the wheel (5) of the pulley (3) is mounted to rotate is fitted with measurement means (11) for measuring at least one magnitude representative of the at least radial forces or loads exerted on said pin (4), in that the pin (4) about which the pulley wheel (5) is mounted to rotate is provided with an axial bore receiving the means (11) for measuring at least one magnitude representative of the at least radial forces or loads exerted on the pin, the means (7) for driving rotation of the wheel (5) of the pulley (3) comprise at least one motor (10), a driving member (8) suitable for being driven in movement by said motor (10), the driving member (8) of the means (7) for driving rotation of the wheel (5) of the pulley (3) comprising at least one rotary gearwheel, and a driven member (9) arranged on the wheel (5) of the pulley (3) and engaging with said driving member (8), the driven member (9) of the means for driving rotation of the wheel of the pulley comprising a circumferential set of teeth arranged at a top of one of the flanks of the groove (6) of the wheel (5) of the pulley (3), and the hoist (1) includes a monitor unit (12) suitable for communicating with said measurement means (11), said monitor unit (12) being fitted with processor means (13) for processing said at least one magnitude measured by said measurement means (11) and with means (14) for issuing an alert signal and/or for controlling the means (7) for driving rotation of the wheel (5) of the pulley (3) as a function of said at least one measured magnitude.

4 more elements

A friction grip hoist for handling loads, said hoist comprising:

at least one body;
a pulley mounted on said body, said pulley comprising a dynamometer pin and a wheel arranged on said pin, said wheel being a grooved wheel provided with an outer peripheral groove for receiving a cable;
a drive driving rotation of said wheel, the drive comprising at least one motor, a driving member driven by the motor, the driving member comprising at least one rotary gearwheel, and a driven member arranged on the wheel and engaging with said driving member, the driven member comprising a circumferential set of teeth arranged at a top of one of the flanks of the groove of the wheel of the pulley;
and
a holder suitable for exerting a thrust force towards a bottom of the groove of the wheel in order to hold the cable inside the groove by pressing;
a measurement device fitted to the dynamometer pin, about which the wheel of the pulley is mounted to rotate, the measurement device being configured for measuring at least one magnitude representative of the at least radial forces or loads exerted on said dynamometer pin, the dynamometer pin being provided with an axial bore receiving the measurement device;
and
a monitor unit suitable for communicating with said measurement device, said monitor unit being fitted with a processor configured for processing said at least one magnitude measured by said measurement device and to issue an alert signal and/or for controlling the drive as a function of said at least one measured magnitude.

5 more elements

Dependencies are inferred from the claim text.