Braking system for a floor conveyor

US7784880B2 · kind B2 · utility

Assignee

• Jungheinrich AG · DE

Inventors

• Jens Glaeske · Norderstedt, DE
• Michael Steiner · San Francisco, US
• Nils von Thienen · Hamburg, DE
• Jens Wiegandt · Kamenz - Kamjenc, DE
• Manfred Zoske · Bark, DE

Key dates

• Filing date: Feb 25, 2009
• Grant date: Aug 31, 2010
• Expiry date: Feb 25, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/70
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A braking system for a floor conveyor, which features at least one travel motor for at least one driven wheel, an electric steering control for at least one steered wheel, a service brake with a braking transmitter generating a braking signal and an electromagnetically releasable spring brake as an emergency stop brake, which is amongst others actuable when an error signal is generated in the steering control or a braking signal otherwise, which further features a superordinated vehicle control for various functions of the floor conveyor and a battery for supplying the individual electric consumers, wherein the steering control actuates a first switch at an error signal, which cuts off the electric connection between the battery and the emergency stop brake, wherein an additional switch is connected in series with the first switch and is actuable by a PWM actuator of the vehicle control, and a control line is connected between the steering control and the vehicle control, such that both switches are switched according to the clock of the PWM actuator when an error signal or a braking signal occurs.