Tool coupler having a modular frame construction

A method of using a tool coupler, comprising:

• releasably attaching a first frame module to a second frame module;
• passing pins through bores in the first frame module and a linkage of a machine to couple the first frame module to the linkage;
• and
• engaging hooks of the second frame module with pins of a tool.

A tool coupler for connecting a machine to a tool, comprising:

• a first frame module, including:
• a first pair of side plates;
• a pair of aligned bores passing through the first pair side plates, the bores configured to receive pins that are connectable to a linkage of the machine;
• and
• a bottom plate that extends outwardly beyond the first pair side plates to form a first mounting flange;
• and
• holes in the first mounting flange;
• a second frame module releasably attached to the first frame module, the second frame module including:
• a second pair of side plates;
• a base flange that extends outwardly from the second pair of side plates to form a second mounting flange configured to mate against the first mounting flange;
• at least one notch formed in the base flange of the second frame module, the at least one notch configured to receive a portion of the first frame module;
• holes in the second mounting flange;
• an opening into a cavity between the second pair of side plates, the opening defined by the base flange, wherein the bottom plate is configured to seal the opening from the environment when the first frame module and second frame module are attached;
• and
• a pair of hooks fixedly connected to the second pair of side plates and configured to receive corresponding pins that are connectable to the tool;
• and
• fasteners passing through the holes to secure the first and second frame modules together.