초록 ▼

A preassembly unit for the drive of an industrial truck, with a fifth wheel on which the driving wheel is rotatably mounted around a horizontal axis and which on its part is rotatably mounted in a bearing member around a vertical axis, a drive motor arranged on the fifth wheel, which is coupled with

A preassembly unit for the drive of an industrial truck, with a fifth wheel on which the driving wheel is rotatably mounted around a horizontal axis and which on its part is rotatably mounted in a bearing member around a vertical axis, a drive motor arranged on the fifth wheel, which is coupled with a driving shaft of the driving wheel via a gearbox, optionally a steering motor on the bearing member in order to turn the fifth wheel in the bearing member around the vertical axis, a parallel rod assembly between the bearing member and a frame of the industrial truck, which permits an essentially vertical movement of the preassembly unit in relation to the frame, and a spring arrangement between the bearing member and a frame-fixed section, wherein at least one upper drag rod of the parallel rod assembly is articulated on the lower end of a separate attachment section, which forms an interface with a counter-attachment position on the frame by attachment positions, and that at least one spring acts between a shoulder of the bearing member and an abutment of the attachment portion below the attachment positions.

대표청구항 ▼

What is claimed is: 1. A preassembly unit for the drive of an industrial truck, comprising: a fifth wheel on which the driving wheel is rotatably mounted around a horizontal axis and which on its part is rotatably mounted in a bearing member around a vertical axis; a drive motor arranged on the fif

What is claimed is: 1. A preassembly unit for the drive of an industrial truck, comprising: a fifth wheel on which the driving wheel is rotatably mounted around a horizontal axis and which on its part is rotatably mounted in a bearing member around a vertical axis; a drive motor arranged on the fifth wheel, which is coupled with a driving shaft of the driving wheel via a gearbox; a parallel rod assembly between the bearing member and a frame of the industrial truck, which permits an essentially vertical movement of the preassembly unit in relation to the frame, a spring arrangement between the bearing member and a frame-fixed section; in which at least one upper drag rod (46) of the parallel rod assembly is articulated on the lower end of a separate attachment section (50), which forms an interface with a counter-attachment position on the frame by attachment positions, and that at least one spring (64) acts between a shoulder (28) of the bearing member (22) and an abutment (60) of the attachment section (50) below the attachment positions; further in which the attachment section (50) has a bearing lug pointing downward and the shoulder of the bearing member (22) has an upper bearing lug (44) pointing upward, for the at least one upper drag rod (46), and further in which the bearing member (22) has two parallel spaced downward standing bearing lugs (30, 32), two lower drag rods (34, 36) of the of the parallel rod assembly are welded to a hollow pipe which is arranged between the downward standing bearing lugs (30, 32) and through which a bearing shaft (42) extends. 2. A preassembly unit according to claim 1, characterised in that the attachment section (50) has two flanges (54, 56) located in one plane, with attachment holes (57). 3. A preassembly unit according to claim 2, characterised in that the abutment for the spring is provided below the flanges. 4. A preassembly unit according to claim 1, characterised in that two parallel spaced springs (64, 66) are provided. 5. A preassembly unit according to claim 1, characterised in that the upper drag rod (46) is bearing mounted on the upper bearing lug (44) at the same side as one of the lower drag rods, bearing mounted on the outside of a facing one of the downward standing bearing lugs. 6. A preassembly unit according to claim 1, characterized in that an arm of a lever (110) is rotatably mounted on a load portion (102) of the industrial truck, and the axles of the lower drag rods (34, 36) and the articulation of the lever (110) on the frame (100) are coaxial. 7. A preassembly unit according to claim 6, characterized in that the lever (110) is pivotally mounted on the bearing shaft (42). 8. The preassembly unit according to claim 1, further including a steering motor on the bearing member in order to turn the fifth wheel in the bearing member around the vertical axis.