# US 10,766,335 B2 · Work vehicle with accommodation for air conditioner in rear beam of cabin frame > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,335 B2 - Document ID: US10766335B2 - Status: Granted - Kind: B2 - Application number: 15/409,053 - Filed: 2017-01-18 - Published: 2017-05-11 - Granted: 2020-09-08 - Earliest claimed: 2014-07-30 - Assignees: Yanmar Co., Ltd. - Applicants: Yanmar Co. Ltd. - Inventors: Masakazu Komatsu - Web page: https://patentgrep.com/patent/US10766335B2 ## CPC - B60H 1/00378: {for tractor or load vehicle cabins} - B60H 1/02: the heat being derived from the propulsion plant - B60H 1/245: {located in the roof} - B60H 3/0658: {Filter elements specially adapted for their arrangement in vehicles (B60H3/0608 takes precedence)} - B62D 25/04: Door pillars {; windshield pillars} - B62D 25/06: Fixed roofs (non-fixed roofs or like shelters B60J7/00; roof liners B60R13/02; insulating elements B60R13/08) - B62D 33/0617: {for tractors or off-the-road vehicles (protective devices for drivers in case of overturning of tractors B60R21/131)} - E02F 9/16: Cabins, platforms, or the like, for drivers ({for motor vehicles in general B62D33/06}, for cranes B66C13/54) - B60Y 2304/03: Reducing weight - B60Y 2304/05: Reducing production costs, e.g. by redesign - B60Y 2306/09: Reducing noise - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) - E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A work vehicle includes a cabin to cover an operator's seat on a traveling body. A cabin frame that constitutes a framework of the cabin includes a pair of left and right front pillars, a pair of left and right rear pillars, a front beam, a rear beam, and side beams. The front beam couples upper end portions of the front pillars to each other. The rear beam couples upper end portions of the rear pillars to each other. Each of the side beams couples to each other upper end portions of each of the front pillars and each of the rear pillars that stand at a front and rear. The rear beam is formed to have a U-shaped cross-section by presswork of a metal plate material. ## Claims ### Claim 1 A work vehicle comprising: a cabin configured to cover an operator's seat on a traveling body, a cabin frame that constitutes a framework of the cabin comprises: a pair of left and right front pillars, a pair of left and right rear pillars, a front beam that couples upper end portions of the front pillars to each other, a rear beam that couples upper end portions of the rear pillars to each other, and side beams each of which couples to each upper end portions of each of the front pillars and each of the rear pillars, and a roof body coupled to the side beams and the rear beam, the roof body having a first side that defines a ceiling of the cabin, and a second side that defines an exterior surface of the cabin frame; an air conditioner comprising an outer surface and at least one of a compressor, a capacitor, and an evaporator; wherein the rear beam protrudes rearward from the rear pillars and comprises: a sidewall that extends from the left rear pillar to the right rear pillar; a bottom surface of the rear beam extending from the sidewall; and a top surface of the rear beam extending from the sidewall; wherein the sidewall, the bottom surface and the top surface define a channel having a U-shaped cross-section such that at least a portion of the outer surface of the air conditioner is disposed within the channel of the rear beam between the bottom surface and the top surface; and wherein the air conditioner is disposed between the sidewall of the rear beam and the front pillars. ### Claim 2 (depends on 1) The work vehicle according to claim 1, wherein the roof body is disposed on an upper end side of the cabin frame, and discharge ducts configured to discharge conditioned air from the air conditioner into the cabin are disposed separately on left and right side portions of the roof body, and wherein the roof body is distinct from the rear beam. ### Claim 3 (depends on 2) The work vehicle according to claim 2, wherein the left and right discharge ducts and an intake duct configured to take in outside air are separately arranged in upper and lower inside portions of the roof body. ### Claim 4 (depends on 3) The work vehicle according to claim 3, wherein the intake duct is disposed above both of the discharge ducts inside of the roof body, and outside air intake holes configured to allow the intake duct to communicate with an outside are formed in both of left and right side portions of the roof body, outside air filters being respectively attached to the outside air intake holes. ### Claim 5 (depends on 1) The work vehicle according to claim 1, wherein both of left and right side portions of a seat frame body of the cabin frame configured to support the operator's seat are formed to have an uneven cross-section by presswork. ### Claim 6 (depends on 5) The work vehicle according to claim 5, wherein a rear surface portion of the seat frame body is formed to have an uneven cross-section by presswork, and both of the left and right side portions of the seat frame body are coupled to the rear surface portion. ### Claim 7 A work vehicle comprising: a cabin comprising a cabin frame that constitutes a framework of the cabin, the cabin frame comprising: a pair of left and right front pillars; a pair of left and right rear pillars; a front beam configured to couple upper end portions of the front pillars to each other; a rear beam configured to couple upper end portions of the rear pillars to each other; the rear beam comprising: a sidewall that extends from the left rear pillar to the right rear pillar; a top surface extending from a first end of the sidewall in a first direction toward the pair of left and right front pillars; and a bottom surface extending from a second end of the sidewall in the first direction; side beams each of which is configured to be coupled to each other upper end portions of each of the front pillars and each of the rear pillars that stand at a front and rear; and a roof body coupled to the side beams and the rear beam, the roof body having a first side that defines a ceiling of the cabin, and a second side that defines an exterior surface of the cabin frame, the roof body being distinct from the rear beam, side beams, and front beam; and wherein the sidewall, the top surface and the bottom surface of the rear beam is formed to have a U-shaped cross-section that defines a channel having an opening configured to accommodate at least a portion of an air conditioner such that the portion of the air conditioner is positioned within the channel between the top surface and the bottom surface. ### Claim 8 (depends on 7) The work vehicle of claim 7, wherein the bottom surface of the rear beam extends from the upper end portions of the left and right rear pillars and is configured to be disposed below the air conditioner to support a bottom surface of the air conditioner. ### Claim 9 (depends on 8) The work vehicle of claim 8, wherein the top surface of the rear beam is configured to be disposed above a top surface of the air conditioner. ### Claim 10 (depends on 7) The work vehicle of claim 7, further comprising a reinforcement beam extending between the pair of left and right rear pillars. ### Claim 11 (depends on 10) The work vehicle of claim 10, wherein: a left portion of the reinforcement beam is coupled to a lower portion of the rear beam; and a right portion of the reinforcement beam is coupled to a right portion of the rear beam. ### Claim 12 (depends on 11) The work vehicle of claim 11, wherein the rear beam is formed to have the U-shaped cross-section by presswork of a metal plate material. ### Claim 13 (depends on 7) The work vehicle of claim 7, wherein: the rear beam comprises a first end and a second end; and the channel extends from the first end to the second end. ### Claim 14 (depends on 7) The work vehicle of claim 7, further comprising: the air conditioner that includes an outer surface; and wherein at least a portion of the outer surface is disposed within the channel between the top surface and the bottom surface. ### Claim 15 (depends on 14) The work vehicle of claim 14, wherein the air conditioner comprises a compressor, a capacitor, an evaporator, or a combination thereof. ### Claim 16 (depends on 15) The work vehicle of claim 15, wherein the air condition comprises the compressor. ### Claim 17 (depends on 7) The work vehicle of claim 7, wherein the roof body is disposed on an upper end side of the cabin frame, and discharge ducts configured to discharge conditioned air from the air conditioner into the cabin are disposed separately on left and right side portions of the roof body. ### Claim 18 (depends on 17) The work vehicle of claim 17, wherein the left and right discharge ducts and an intake duct configured to take in outside air are separately arranged in upper and lower inside portions of the roof body. ### Claim 19 (depends on 7) The work vehicle of claim 7, wherein each side beam defines an intake hole. ### Claim 20 (depends on 19) The work vehicle of claim 19, further comprising a filter coupled to each intake hole.