A working vehicle includes a weight support portion in a front portion of a vehicle body to support a weight, a front side detector to detect a detection target in front of the vehicle body, and a support fixed to an upper surface of the weight support portion to support the front side radar.

An adjusting device includes a lifting device for adjusting a position of an attachment in use and a locking mechanism. The lifting device is switched between a locking position and a free position under a locking action of the locking mechanism, the lifting device drives the attachment to move to a first position when the lifting device is in the locking position; and the lifting device drives the attachment to move to a second position so as to work when the lifting device is in the free position. The adjusting device has a simple structure, a low production cost, an easy maintenance, and a garden tool using the adjusting device can conveniently and quickly adjust the position of the attachment connected to the garden tool.

The present invention is related to a method for coupling an attachment to a radio-controlled vehicle by means of a connection system having a support, an attachment-holder unit and a coupling unit. The support is fixed to a radio-controlled vehicle and the attachment-holder unit is fixed to the attachment. The coupling unit is automatically operable, in particular it is remotely operable, without the direct intervention of an operator to selectively connect or disconnect the support and the attachment-holder unit to/from each other.

In certain embodiments, an attachment system for a work vehicle may include a chassis interface coupled to a chassis of the work vehicle. The chassis interface may include a recess extending in a longitudinal direction and a pin retainer having a pin hole extending in a lateral direction. The recess receives a protrusion of an attachment interface coupled to an attachment. The pin hole of the pin retainer receives a pin and the pin fastens the chassis interface and the attachment interface to one another.

A riding lawn mower includes a frame, a mowing device mounted to the bottom of the frame, a functional unit attached to the front of the frame, and a motor group together with a power supply mounted to the frame. The riding lawn mower also comprises a connecting device connecting the frame and the functional unit. The connecting device comprises a first connector attached on the front of the frame, a second connector attached to the functional unit, and a third connector adapted for fixedly connecting the first connector and the second connector, the first connector and the second connector respectively defining through-holes thereon, the third connector extending through the through-holes of the first and the second connectors to fixedly connect the first and the second connectors.