[특허]Personal watercraft

Kawasaki Jukogyo Kabuskihi Kaisha

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Personal watercraft

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63H-011/11
미국특허분류(USC)	440/041; 114/145R
출원번호	US-0754540 (2010-04-05)
등록번호	US-8177592 (2012-05-15)
발명자 / 주소	Kamio, Kunihiko
출원인 / 주소	Kawasaki Jukogyo Kabuskihi Kaisha
대리인 / 주소	Alleman Hall McCoy Russell & Tuttle LLP
인용정보	피인용 횟수 : 4 인용 특허 : 5

초록
▼

A personal watercraft comprises a water jet pump configured to be driven by an engine to generate a rearward water jet, a reverse bucket mounted at a periphery of the water jet pump and movable between a forward driving position and a reverse driving position, a driving power operation member configured to control an engine driving power, a reverse driving operation member configured to change a position of the reverse bucket from the forward driving position to the reverse driving position, and a deceleration operation member, wherein the reverse bucket is in the forward driving position when the deceleration operation member and the reverse driving operation member are not operated, and the reverse bucket is in a deceleration position between the forward driving position and the reverse driving position when the deceleration operation member has been operated and the reverse driving operation member is not operated.

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1. A personal watercraft comprising: an engine mounted in a body;a water jet pump configured to be driven by the engine to generate a water jet to apply a propulsive force to the body;a reverse bucket mounted at a periphery of the water jet pump and movable between a forward driving position and a reverse driving position, the reverse bucket being configured to permit the water jet to be directed rearwardly in the forward driving position and to direct the water jet in a forward direction in the reverse driving position;a driving power operation member configured to be operated by a rider to control a driving power of the engine;a reverse driving operation member configured to be operated by the rider to change a position of the reverse bucket from the forward driving position to the reverse driving position; anda deceleration operation member provided separately from the reverse driving operation member and configured to be operated by the rider to change a position of the reverse bucket;wherein the reverse bucket is in the forward driving position when the deceleration operation member and the reverse driving operation member are not operated; andwherein the reverse bucket is in a deceleration position between the forward driving position and the reverse driving position when the deceleration operation member has been operated and the reverse driving operation member is not operated. 2. The personal watercraft according to claim 1, further comprising: a pair of right and left grips which are gripped by the rider;wherein the reverse driving operation member and the deceleration operation member are attached to one of the right and left grips. 3. A personal watercraft comprising: an engine mounted in a body;a water jet pump configured to be driven by the engine to generate a water jet to apply a propulsive force to the body;a reverse bucket mounted at a periphery of the water jet pump and movable between a forward driving position and a reverse driving position, the reverse bucket being configured to permit the water jet to be directed rearwardly in the forward driving position and to direct the water jet in a forward direction in the reverse driving position;a driving power operation member configured to be operated by a rider to control a driving power of the engine;a reverse driving operation member configured to be operated by the rider to change a position of the reverse bucket from the forward driving position to the reverse driving position; anda deceleration operation member configured to be operated by the rider;wherein the reverse bucket is in the forward driving position when the deceleration operation member and the reverse driving operation member are not operated; andwherein the reverse bucket is in a deceleration position between the forward driving position and the reverse driving position when the deceleration operation member has been operated and the reverse driving operation member is not operated,the personal watercraft further comprising: a deceleration operation detector configured to detect whether or not the deceleration operation member has been operated; andan engine controller configured to control an operation of the engine;wherein the engine controller is configured to control the engine such that an engine speed is higher when the deceleration operation detector detects that the deceleration operation member has been operated than when the deceleration operation detector detects that the deceleration operation member is not operated. 4. The personal watercraft according to claim 3, further comprising: a throttle valve configured to open and close an air-intake passage of the engine according to an operation amount of the driving power operation member;a bypass passage connected to the air-intake passage such that air flowing in the air-intake passage bypasses the throttle valve;a bypass valve configured to open and close the bypass passage; anda bypass valve drive device configured to drive the bypass valve;wherein the engine controller is configured to control the bypass valve drive device such that an opening degree of the bypass valve is larger when the deceleration operation detector detects that the deceleration operation member has been operated than when the deceleration operation detector detects that the deceleration operation member is not operated. 5. A personal watercraft comprising: an engine mounted in a body;a water jet pump configured to be driven by the engine to generate a water jet to apply a propulsive force to the body;a reverse bucket mounted at a periphery of the water jet pump and movable between a forward driving position and a reverse driving position, the reverse bucket being configured to permit the water jet to be directed rearwardly in the forward driving position and to direct the water jet in a forward direction in the reverse driving position;a driving power operation member configured to be operated by a rider to control a driving power of the engine;a reverse driving operation member configured to be operated by the rider to change a position of the reverse bucket from the forward driving position to the reverse driving position; anda deceleration operation member configured to be operated by the rider;wherein the reverse bucket is in the forward driving position when the deceleration operation member and the reverse driving operation member are not operated; andwherein the reverse bucket is in a deceleration position between the forward driving position and the reverse driving position when the deceleration operation member has been operated and the reverse driving operation member is not operated,the personal watercraft further comprising: a deceleration operation detector configured to detect whether or not the deceleration operation member has been operated; andan engine controller configured to control an operation of the engine;wherein the engine controller is configured to control the engine such that an engine speed is higher than an idling engine speed when the deceleration operation detector detects that the deceleration operation member has been operated. 6. The personal watercraft according to claim 5, further comprising: a throttle valve configured to open and close an air-intake passage of the engine; anda valve actuator configured to drive the throttle valve;wherein the engine controller is configured to control the engine such that an engine speed reaches a set value higher than an idling engine speed regardless of an operation of the driving power operation member, when the deceleration operation detector detects that the deceleration operation member has been operated. 7. The personal watercraft according to claim 5, further comprising: a movement detector configured to detect whether or not the reverse bucket has reached a deceleration position;wherein the engine controller is configured to start controlling the engine to cause the engine speed to be higher than the idling engine speed after the movement detector detects that the reverse bucket has reached the deceleration position. 8. The personal watercraft according to claim 5, wherein the engine controller is configured to control the engine such that the engine speed reaches a first set value higher than the idling engine speed after the deceleration operation detector detects that the deceleration operation member has been operated, and to then control the engine such that the engine speed reaches a second set value which is different from the first set value. 9. The personal watercraft according to claim 5, wherein the engine controller is configured to control the engine such that the engine speed reaches a set value higher than an idling engine speed after the deceleration operation detector detects that the deceleration operation member has been operated,and wherein the engine controller is configured to determine the set value based on a driving state parameter. 10. A personal watercraft comprising: an engine mounted in a body;a water jet pump configured to be driven by the engine to generate a water jet to apply a propulsive force to the body;a reverse bucket mounted at a periphery of the water jet pump and movable between a forward driving position and a reverse driving position, the reverse bucket being configured to permit the water jet to be directed rearwardly in the forward driving position and to direct the water jet in a forward direction in the reverse driving position;a driving power operation member configured to be operated by a rider to control a driving power of the engine;a reverse driving operation member configured to be operated by the rider to change a position of the reverse bucket from the forward driving position to the reverse driving position; anda deceleration operation member configured to be operated by the rider;wherein the reverse bucket is in the forward driving position when the deceleration operation member and the reverse driving operation member are not operated; andwherein the reverse bucket is in a deceleration position between the forward driving position and the reverse driving position when the deceleration operation member has been operated and the reverse driving operation member is not operated,the personal watercraft further comprising: a reverse driving operation detector configured to detect whether or not the reverse driving operation member has been operated;a deceleration operation detector configured to detect whether or not the deceleration operation member has been operated;a bucket actuator configured to drive the reverse bucket; anda bucket controller configured to control an operation of the bucket actuator;wherein the bucket controller is configured to control the operation of the bucket actuator to cause the reverse bucket to be in the forward driving position when the reverse driving operation detector detects that the reverse driving operation member is not operated and the deceleration operation detector detects that the deceleration operation member is not operated;wherein the bucket controller is configured to control the operation of the bucket actuator to cause the reverse bucket to be in the deceleration position when the reverse driving operation detector detects that the reverse driving operation member is not operated and the deceleration operation detector detects that the deceleration operation member has been operated; andwherein the bucket controller is configured to control the operation of the bucket actuator to cause the reverse bucket to be in the reverse driving position when the reverse driving operation detector detects that the reverse driving operation member has been operated. 11. A personal watercraft comprising: an engine mounted in a body;a water jet pump configured to be driven by the engine to generate a water jet to apply a propulsive force to the body;a reverse bucket mounted at a periphery of the water jet pump and movable between a forward driving position and a reverse driving position, the reverse bucket being configured to permit the water jet to be directed rearwardly in the forward driving position and to direct the water jet in a forward direction in the reverse driving position;a driving power operation member configured to be operated by a rider to control a driving power of the engine;a reverse driving operation member configured to be operated by the rider to change a position of the reverse bucket from the forward driving position to the reverse driving position; anda deceleration operation member configured to be operated by the rider;wherein the reverse bucket is in the forward driving position when the deceleration operation member and the reverse driving operation member are not operated; andwherein the reverse bucket is in a deceleration position between the forward driving position and the reverse driving position when the deceleration operation member has been operated and the reverse driving operation member is not operated,the personal watercraft further comprising: a first wire configured to mechanically couple the reverse driving operation member to the reverse bucket;a second wire configured to mechanically couple the deceleration operation member to the reverse bucket; anda biasing member configured to apply a force to place the reverse bucket in the forward driving position;wherein the reverse bucket is in the forward driving position when the reverse driving operation member and the deceleration operation member are not operated;wherein the reverse bucket is pulled by at least the second wire and moves to the deceleration position, in response to the operation of the deceleration operation member against the force applied by the biasing member; andwherein the reverse bucket is pulled by at least the first wire and moves to the reverse driving position, in response to the operation of the reverse driving operation member against the force applied by the biasing member. 12. A personal watercraft comprising: an engine mounted in a body;a water jet pump configured to be driven by the engine to generate a water jet to apply a propulsive force to the body;a reverse bucket mounted at a periphery of the water jet pump and movable between a forward driving position and a reverse driving position, the reverse bucket being configured to permit the water jet to be directed rearwardly in the forward driving position and to direct the water jet in a forward direction in the reverse driving position;a driving power operation member configured to be operated by a rider to control a driving power of the engine;a reverse driving operation member configured to be operated by the rider to change a position of the reverse bucket from the forward driving position to the reverse driving position; anda deceleration operation member configured to be operated by the rider;wherein the reverse bucket is in the forward driving position when the deceleration operation member and the reverse driving operation member are not operated; andwherein the reverse bucket is in a deceleration position between the forward driving position and the reverse driving position when the deceleration operation member has been operated and the reverse driving operation member is not operated,the personal watercraft further comprising: a pair of right and left grips which are gripped by the rider;wherein the reverse driving operation member and the deceleration operation member are pivotally attached on one of the pair of right and left grips;wherein the deceleration operation member is a deceleration operation lever positioned in front of and adjacent to the one of the grips; and the reverse driving operation member is a reverse driving operation lever positioned in front of and adjacent to the deceleration operation lever. 13. The personal watercraft according to claim 12, further comprising: a common pivot to which one end portion of the reverse driving operation lever is attached such that the reverse driving operation lever is pivotable around the common pivot and to which one end portion of the deceleration operation lever is attached such that the deceleration operation lever is pivotable around the common pivot;wherein the reverse driving operation lever is shorter than the deceleration operation lever. 14. The personal watercraft according to claim 12, wherein the reverse driving operation lever and the deceleration operation lever are pivotable within a substantially same flat plane.

이 특허에 인용된 특허 (5)

이 특허를 인용한 특허 피인용횟수: 4

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Personal watercraft

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