# US 2016/0355080 A1 · Engine mount structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0355080 A1 - Document ID: US20160355080A1 - Status: Published application - Kind: A1 - Application number: 15/244,324 - Filed: 2016-08-23 - Published: 2016-12-08 - Earliest claimed: 2014-03-19 - Assignees: Kawasaki Jukogyo Kabushiki Kaisha - Applicants: Kawasaki Jukogyo Kabushiki Kaisha - Inventors: Hiroyuki Wada; Takeshi Kashihara; Shunichi Hashimoto - Web page: https://patentgrep.com/patent/US20160355080A1 ## CPC - B60K 5/1208: {Resilient supports (B60K5/1241 - B60K5/1291 take precedence)} - B60K 5/1216: {characterised by the location of the supports relative to the motor or to each other (B60K5/1225 takes precedence)} - B62K 11/04: characterised by the engine being between front and rear wheels - B62M 7/02: with engine between front and rear wheels - B62M 7/04: below the frame - B60Y 2200/12: Motorcycles, Trikes; Quads; Scooters - B62K 2201/02: Rubber springs - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE - B62M: RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general B60K; transmission elements per se F16) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A main frame includes a pair of left and right first frame pieces which extends rearwardly from above an engine, a pair of left and right second frame pieces each extending from a front portion in a direction slantwise downwardly and rearwardly of the associated first frame piece, and a pair of left and right third frame pieces each extending rearwardly from a lower end of the associated second frame piece through laterally of a cylinder block. The first mount section for supporting the front portion of the engine is constituted by a rubber mount in which a pair of left and right support portions, provided at respective joints between the second frame pieces and the third frame pieces, and a pair of first to-be-supported portions are connected together. The support portions are connected together through a connecting member that extends in a leftward and rightward direction. ## Claims ### Claim 1 An engine mount structure to support an engine on a vehicle frame structure for a motorcycle, in which: the vehicle frame structure includes a main frame extending rearwardly and slantwise downwardly from a head pipe; the engine includes a crankcase to support a crankshaft and a cylinder block connected above the crankcase, the engine being supported on the main frame at three locations including a front portion, a rear upper portion and a rear lower potion thereof; and the main frame includes a pair of left and right first frame pieces both extending from upwardly of the engine in a direction rearwardly of the engine, a pair of left and right second frame pieces each extending from a front portion the associated first frame piece in a direction slantwise downwardly, and a pair of left and right third frame pieces each extending in a rearward direction from a lower end of the corresponding second frame piece through laterally of the cylinder block and connected with an intermediate portion of the associated first frame piece, the mount structure comprising: a first mount section to support a front portion of the engine, the first mount section being constituted by a rubber mount which includes a pair of left and right support portions provided at a joint between the second frame piece and the third frame piece and left and right to-be-supported portions each provided in the engine, the respective support portion being connected with the associated to-be-supported portion through an elastic member; and a connecting member configured to connect the left and right support portions with each other. ### Claim 2 (depends on 1) The engine support structure as claimed in claim 1, in which the cylinder block comprises a cylinder accommodating a piston and a cylinder head above the cylinder; and the cylinder is supported by the main frame by the first mount section. ### Claim 3 (depends on 1) The engine mount structure as claimed in claim 1, further comprising a second mount section to support the rear upper portion of the engine, the second mount section being constituted by a rubber mount having an elastic member interposed. ### Claim 4 (depends on 1) The engine mount structure as claimed in claim 1, further comprising a third mount section to support the rear lower portion of the engine, the third mount section being constituted by a rigid mount having no elastic member interposed. ### Claim 5 (depends on 1) The engine mount structure as claimed in claim 1, further comprising a bracket to support the engine, the bracket being connected with the joint, wherein the support portions of the first mount section are positioned beneath the joint in the bracket. ### Claim 6 (depends on 1) The engine mount structure as claimed in claim 1, further comprising: a second mount section to support the rear upper portion of the engine; and a third mount section to support the rear lower portion of the engine, wherein the second and third mount sections are provided in a swingarm bracket formed in the main frame.