Patent · US Active

Chassis cylinder for an industrial truck with a drive wheel pretensioned against the ground

US12195071B2 · kind B2 · utility

0Cited by

2References

16Claims

0Family size

Assignee

Jungheinrich AG · DE

Inventors

Michael Schuler · Westerburg, DE
Richard Schwarz · Hamburg, DE
Melanie Schefner · Hamburg, DE
Marcel Krenzin · Bad Bramstedt, DE

Key dates

Filing date	May 31, 2022
Grant date	Jan 14, 2025
Priority date	—
Expiry date	Oct 21, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB62B2301/23
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

An industrial truck includes a vehicle frame and a drive unit. The drive unit includes a drive wheel movably mounted to the vehicle frame and a spring unit. The spring unit includes a hydraulic cylinder positioned between the vehicle frame and the drive unit and a switchable valve configured to define a blocked state. The spring unit is configured to pretension the drive wheel against a ground surface. When the switchable valve is in the blocked state, a one-sided movement of the hydraulic cylinder is blocked.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.