Device for attaching working machine to vehicle

A device for attaching a working machine to a vehicle comprising:

• a vehicle body having wheels and an engine;
• an operator's seat and a manipulation handle disposed on the vehicle body;
• a hydraulic actuator mounted on a rear upper portion of the vehicle body for vertically moving a three point link type working machine;
• reinforcing frame fixed to the lateral lower sides of the vehicle body;
• a working machine attachment frame fixed to the vehicle body and to a rear portion o the reinforcing frame, said attachment frame having means to selectively mount either a three point link type working machine or a rigidly mounted rear working machine;
• said rigidly mounted rear working machine having a mounting frame detachably mounted on the attachment frame;
• a front working machine positioned in front of the vehicle body and attached to a front portion of the reinforcing frame;
• an attachment seat mounted on the vehicle body for mounting the operator's seat thereon in frontward and rearward directions;
• the attachment frame having a front upper portion provided with a top link connecting portion adapted to be connected to a top link for connecting the three point link type working machine, a front lower portion provided with lower link connecting portions adapted to be connected to right and left lower links for connecting the three point link type working machine, and rear upper and lower portions each provided with upper and lower connecting portions for connecting upper and lower coupling portions of the mounting frame;
• and
• a control box disposed on the mounting frame for controlling the rear working machine.

A device for attaching a working machine to a travelling vehicle comprising:

• a vehicle body having wheels and an engine;
• an operator's seat and a drive wheel disposed on the vehicle body;
• a hydraulic actuator mounted on a rear upper portion of the vehicle body for vertically moving a three point link type working machine;
• a rear attachment frame fixedly secured outboard and to the rear portion of the vehicle body, said rear attachment frame being selectively attached to either of a rigidly mounted type working machine and a three point link type working machine;
• said rigidly mounted type working machine including a pair of upper and a pair of lower coupling members at a forward end thereof, and said three point link type working machine including a top link, a pair of lower links, and a hydraulic actuator for enabling up and down movement of said three point link type working machine;
• said rear attachment frame being provided, for rigidly mounted type couplings, with upper connectors for engagement with said pair of upper coupling members of said rigidly mounted type working machine by an upper locking device and with a pair of lower connectors for engagement with said pair of lower coupling members of said rigidly mounted working machine by a lower locking device;
• said rear attachment frame further including, for said three point link type working machine, a top link receptacle for pivotably connecting with a front end of the corresponding top link and a pair of lower link receptacles for pivotably connecting with the front ends of the corresponding pair of lower links of the three point link type working machine;
• wherein said upper connectors are fixedly positioned rearwardly of the top link receptacle and said pair of lower connectors are positioned rearwardly of the pair of lower link receptacles.

A device for coupling a working machine to a vehicle comprising:

• a vehicle body having wheels and an engine;
• an operator's seat and drive wheel mounted on the vehicle body;
• a hydraulic actuator mounted to an upper rear portion of the vehicle body for vertically moving a three point link type working machine;
• a pair of lower links provided on said working machine for aiding in the vertical movement thereof;
• a reinforcing frame secured to opposed lower sides of the vehicle body;
• a working machine attachment frame secured to a rear portion of the vehicle body and said reinforcing frame;
• a rigidly mounted type rear working machine including a mounting frame removably coupled with said attachment frame at the rear of the vehicle body;
• a front working machine mounted to a front end of said reinforcing frame;
• and
• a mount for the operator's seat for selectively positioning the seat to face to the forward end or to the rear end of the vehicle;
• wherein said attachment frame is, at its rear upper portion, provided for rigidly mounted type couplings, with upper connectors for securing corresponding upper couplings of the rigidly mounted type rear working machine, and said attachment frame is further, at its rear lower portion, provided with lower connectors for securing corresponding lower couplings of said rear working machine thereto;
• wherein said attachment frame is provided at front upper and lower portions thereof, for three point link type couplings, with a top link receptacle for connection with a corresponding top link and a pair of lower link receptacles for connection with a pair of corresponding lower links of a three point link type working machine;
• and
• a control box for operating the rear working machine mounted on the mounting frame.