# US 7,610,132 B2 · Power steering system for all-terrain buggy vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,610,132 B2 - Document ID: US7610132B2 - Status: Granted - Kind: B2 - Application number: 11/359,545 - Filed: 2006-02-23 - Published: 2006-09-21 - Granted: 2009-10-27 - Earliest claimed: 2005-02-24 - Assignees: Honda Motor Co., Ltd. - Inventors: Hideo Yanai; Sumitaka Ogawa; Tomokazu Sakamoto - Web page: https://patentgrep.com/patent/US7610132B2 ## CPC - B62K 5/08: with steering devices acting on two or more wheels - B62D 5/04: electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear - B62K 5/01: Motorcycles with four or more wheels (specially adapted for disabled riders B62K5/003) - B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE - 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) ## Abstract A power steering system of an all-terrain buggy vehicle is provided to protect a power assist motor against obstacles encountered during traveling on the irregular ground, or the like. In a power steering system of a four-wheeled buggy vehicle in which a steering shaft rotated in response to the operation of a handlebar is disposed forward of an engine located at the almost-middle in the back-and-forth direction of a body frame, and the rotary shaft of a power assist motor is disposed perpendicular to the steering shaft, the power assist motor is located inside the body frame. ## Claims ### Claim 1 A power steering system for an all-terrain buggy vehicle, comprising: a steering shaft rotated in response to operation of a handlebar, the steering shaft being disposed forward of an engine located near a middle in a back-and-forth direction of a body frame; and a power assist motor having a rotary shaft disposed perpendicular to the steering shaft; wherein the power assist motor is located inside the body frame in a position rearward of the steering shaft, wherein a left arm support member is provided on a left portion of the body frame, and a right arm support member is provided on a right portion of the body frame, the left and right arm support members being adapted to suspend a front wheel in the body frame, wherein an axis CM of the power assist motor is in vicinity of a centerline of a vehicle body in a widthwise direction thereof, and is disposed perpendicular to an axis CS of the steering shaft. ### Claim 2 (depends on 1) The power steering system for an all-terrain buggy vehicle according to claim 1, wherein the power assist motor is disposed obliquely with respect to the back-and-forth direction of a vehicle body as viewed from above. ### Claim 3 (depends on 1) The power steering system for an all-terrain buggy vehicle according to claim 1, wherein the power assist motor is disposed rearward of a front wheel suspension. ### Claim 4 (depends on 2) The power steering system for an all-terrain buggy vehicle according to claim 2, wherein the power assist motor is disposed rearward of a front wheel suspension. ### Claim 5 (depends on 1) The power steering system for an all-terrain buggy vehicle according to claim 1, wherein the power assist motor is disposed above the arm support member. ### Claim 6 (depends on 2) The power steering system for an all-terrain buggy vehicle according to claim 2, wherein the power assist motor is disposed above the arm support member. ### Claim 7 (depends on 3) The power steering system for an all-terrain buggy vehicle according to claim 3, wherein the power assist motor is disposed above the arm support member. ### Claim 8 A power steering system for an all-terrain buggy vehicle, comprising: a steering shaft rotated in response to operation of a handlebar, the steering shaft being disposed forward of an engine located near a middle in a back-and-forth direction of a body frame; and a power assist motor having a rotary shaft disposed perpendicular to the steering shaft; wherein the power assist motor is located inside the body frame between right and left gusset pipes, wherein the right gusset pipe is provided with a right arm support member, and the left gusset pipe is provided with a left arm support member, the right and left arm support members being adapted to suspend a front wheel in the body frame. ### Claim 9 (depends on 8) The power steering system for an all-terrain buggy vehicle according to claim 8, wherein the power assist motor is disposed rearward of the steering shaft and obliquely with respect to the back-and-forth direction of a vehicle body as viewed from above. ### Claim 10 (depends on 8) The power steering system for an all-terrain buggy vehicle according to claim 8, wherein the power assist motor is disposed rearward of a front wheel suspension. ### Claim 11 (depends on 9) The power steering system for an all-terrain buggy vehicle according to claim 9, wherein the power assist motor is disposed rearward of a front wheel suspension. ### Claim 12 (depends on 8) The power steering system for an all-terrain buggy vehicle according to claim 8, wherein the power assist motor is disposed above the arm support member. ### Claim 13 (depends on 9) The power steering system for an all-terrain buggy vehicle according to claim 9, wherein the power assist motor is disposed above the arm support member. ### Claim 14 (depends on 10) The power steering system for an all-terrain buggy vehicle according to claim 10, wherein the power assist motor is disposed above the arm support member. ### Claim 15 (depends on 8) The power steering system for an all-terrain buggy vehicle according to claim 8, wherein an axis CM of the power assist motor is in vicinity of a centerline of a vehicle body in a widthwise direction thereof, and is disposed perpendicular to an axis CS of the steering shaft.