A compact excavator (10) includes a base frame (12), an upper frame (16) and first and second track assemblies (28) supporting the base frame (12).

The bed (10) is provided with a height-adjustable underframe (14) comprising several supporting legs (16) and an upper frame (12) which is connected to the underframe.

The exercise apparatus may be configured with a lower frame and an upper frame.

Fastening the fastening sections from the upper chassis and the lower chassis causes the actuator, the lamp block, and the circuit board to be assembled to the upper chassis and the lower chassis.

The apparatus (12) includes a lower chassis (44) and an upper chassis (37).

The frame member (3) may be a height adjustable lower frame member of a bedframe having also a height adjustable upper frame member (2).

The upper moulage and the lower moulage form a hollow chamber when the upper chassis and the lower chassis are closed.

A extension segment is arranged between the undercarriage and the superstructure, by means of which a vertical distance between the undercarriage and the superstructure can be extended.

The lower receiver comprises a receiver extension having an opening therein.

One side of the cover chassis is engaged with the bottom chassis and the cover chassis is rotationally attached to the bottom chassis with the engaged side as a pivot.

The lower-frame assembly includes a plurality of wheel assemblies.

A collapsible swivel chair (10) having an upper frame assembly (32), a lower frame assembly (34), and a swivel assembly (28) which joins the upper frame assembly (32) and the lower frame assembly (34).

The moulage (2) includes an upper moulage (21) provided in the upper chassis and a lower moulage (22) provided in the lower chassis.

When stacked, the air inlet of the upper chassis may be disposed above the truncated portion of the lower chassis.

The forward end of the upper sub-chassis (1) is pivotally attached to the lower sub-chassis (2).