The present invention includes: a base carrier; a revolving superstructure provided above the base carrier in a manner capable of revolving; a boom bracket supported by the revolving superstructure in a horizontally rotatable manner; a work machine supported by the boom bracket in a vertically rotatable manner; a first position detecting device that detects a horizontal position of the boom bracket with respect to the revolving superstructure; a second position detecting device that detects a vertical position of the work machine with respect to the revolving superstructure; and an arithmetic unit that calculates a position of a working end of the work machine based on the results of detection by those position detecting devices.

A truck bed member includes a rectangular top side with a long side along a first axis. An interlocking side is fixed perpendicular to the top side along a first edge of the top side parallel to the first axis and includes an interlocking member along an edge opposite the interlocking side coupled to the top side. An interlock receiving side is fixed perpendicular to the top side along a top side second edge opposite the first edge and parallel to the first axis. The interlocking side and the interlock receiving side are parallel to one another and extend a same direction from the top side. The interlock receiving side includes an interlock receiving member along an edge of the interlock receiving side opposite the edge coupled to the top side. The interlocking member is configured to couple to the interlock receiving member of a different truck bed member.

A truck bed member includes a rectangular top side with a long side along a first axis. An interlocking side is fixed perpendicular to the top side along a first edge of the top side parallel to the first axis and includes an interlocking member along an edge opposite the interlocking side coupled to the top side. An interlock receiving side is fixed perpendicular to the top side along a top side second edge opposite the first edge and parallel to the first axis. The interlocking side and the interlock receiving side are parallel to one another and extend a same direction from the top side. The interlock receiving side includes an interlock receiving member along an edge of the interlock receiving side opposite the edge coupled to the top side. The interlocking member is configured to couple to the interlock receiving member of a different truck bed member.

Provided is a truck with a lowerable bed for reducing the height difference between the ground and a payload area to provide easy loading and unloading. A traction system for a truck with a lowerable bed is also provided.

The auxiliary truck bed rack is an elevated rack system. The auxiliary truck bed rack mounts on the pickup truck such that the auxiliary truck bed rack is elevated above the port sidewall and the starboard sidewall of the pickup truck. The load path provided by the auxiliary truck bed rack adjusts such that the internal strains on the load can be minimized while stored on the auxiliary truck bed rack. The auxiliary truck bed rack comprises a forward crossbeam, one or more middle crossbeams, an aft crossbeam, a port beam, and a starboard beam. The port beam mounts on the port sidewall of the pickup truck. The starboard beam mounts on the starboard sidewall of the pickup truck. The forward crossbeam, the one or more middle crossbeams, and the aft crossbeam are transverse structures that attach to both the port sidewall and the starboard sidewall.

A tailgate assembly capable of extending the volume of a truck bed having a first panel with a first end and a second end, with the first end rotatably connected to a truck bed, a second panel with a first end, a second end, and at least one side end, with the first end of the second panel rotatably connected to the second end of the first panel, and at least one folding panel rotatable connected to a side end of the second panel.

A tailgate assembly capable of extending the volume of a truck bed having a first panel with a first end and a second end, with the first end rotatably connected to a truck bed, a second panel with a first end, a second end, and at least one side end, with the first end of the second panel rotatably connected to the second end of the first panel, and at least one folding panel rotatable connected to a side end of the second panel.

An interface system is described herein for attaching one or more objects to a truck bedside includes a top plate integrated with a top portion of the truck bedside, a plurality of female connector tubes attached to the top plate and extending into a volume between the top portion of the truck bedside and a wheel well of the truck bed, and a locking bar assembly. A plurality of male connector tubes attached to the one or more objects can be inserted into the female connector tubes and secured to the female connector tubes using the locking bar assembly that can be locked in a locked position by a locking mechanism.

A replacement tailgate for the purpose of elongating the pick up truck may be installed on a truck bed wherein the replacement tailgate can be unfolded in order to elongate a length of the truck bed. The replacement tailgate may have front and rear shells that are used to support objects placed in the truck bed as well as act as the new tailgate when the truck bed length is elongated. Various panels may be unfolded in order to trap objects within the truck bed when the replacement tailgate is unfolded in order to elongate the truck bed length.

A replacement tailgate for the purpose of elongating the pick up truck may be installed on a truck bed wherein the replacement tailgate can be unfolded in order to elongate a length of the truck bed. The replacement tailgate may have front and rear shells that are used to support objects placed in the truck bed as well as act as the new tailgate when the truck bed length is elongated. Various panels may be unfolded in order to trap objects within the truck bed when the replacement tailgate is unfolded in order to elongate the truck bed length.