[특허]Self-propelled walk-behind snowplow vehicle

Honda Motor Co., Ltd.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Self-propelled walk-behind snowplow vehicle

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01H-005/09 E01H-005/04
미국특허분류(USC)	037/249; 037/254; 037/256
출원번호	US-0919982 (2004-08-17)
우선권정보	JP-2003-297852(2003-08-21); JP-2003-297874(2003-08-21); JP-2003-297920(2003-08-21)
발명자 / 주소	Hanafusa,Jitsumi Ono,Naotoshi Kamata,Kenji Yamazaki,Nobuo
출원인 / 주소	Honda Motor Co., Ltd.
대리인 / 주소	Adams &
인용정보	피인용 횟수 : 6 인용 특허 : 7

초록
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A self-propelled walk-behind snowplow vehicle has a vehicle body and a vertical engine mounted on an upper part of the vehicle body. The vertical engine has a crankshaft disposed generally vertical and a cylinder head disposed generally horizontal to a longitudinal direction of the snowplow vehicle. The cylinder head projects from the vehicle body in a rearward direction of the snowplow vehicle. Left and right traveling units are mounted on a lower part of the vehicle body at left and right sides thereof. A muffler is connected to the engine and is disp...

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청구항
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What is claimed is: 1. A self-propelled walk-behind snowplow vehicle comprising: a vehicle body; a vertical engine mounted on an upper part of the vehicle body, the vertical engine having a crankshaft disposed generally vertical and a cylinder head disposed generally horizontal to a longitudinal direction of the snowplow vehicle, the cylinder head projecting from the vehicle body in a rearward direction of the snowplow vehicle; left and right traveling units mounted on a lower part of the vehicle body at left and right sides thereof; and a muffler connected to the engine, the muffler being disposed below the engine and located between the left and right traveling units; wherein the vehicle body and the left and right traveling units together define a downward opening space within which the muffler is disposed. 2. A self-propelled walk-behind snowplow vehicle according to claim 1; wherein the left traveling unit has a left side frame extending in the longitudinal direction of the snowplow vehicle and a left driving wheel rotatably mounted on the left side frame; wherein the right traveling unit has a right side frame extending parallel to the left side frame; and a right driving wheel rotatably mounted on the right side frame; and wherein the left and right side frames are connected together by a cross member, the cross member being disposed rearward of the muffler. 3. A self-propelled walk-behind snowplow vehicle according to claim 1; further comprising: a carburetor connected to the engine; a cover enclosing the engine, the cover having an air intake hole formed in a rear end portion thereof and opening downward for introducing outside air into the cover and to the carburetor, the muffler being disposed below and forwardly of the air intake hole; and a partition wall disposed between the muffler and the air intake hole for blocking direct transmission of radiant heat from the muffler to the rear end portion of the cover including the air intake hole. 4. A self-propelled walk-behind snowplow vehicle according to claim 3; wherein the partition wall has an upper end vertically spaced from the cover and defining together with the cover a gap for allowing limited transmission of radiant heat from the muffler through the gap to the rear end portion of the cover including the air intake hole. 5. A self-propelled walk-behind snowplow vehicle according to claim 3; wherein the cover has a bottom wall formed with an opening from which part of air that has been used for cooling the engine is discharged, the muffler and the engine being connected together by an exhaust pipe extending vertically through the opening, and the partition wall being disposed rearward of the opening and configured so as to keep the discharged air from flowing behind the partition wall. 6. A self-propelled walk-behind snowplow vehicle according to claim 5; wherein the partition wall has a generally U-shaped configuration and is disposed with an open side of the U-shaped configuration facing forward. 7. A self-propelled walk-behind snowplow vehicle according to claim 1; further comprising an auger housing disposed forwardly of the vehicle body for receiving therein an auger driven by the engine, the auger housing extending in a widthwise direction of the snowplow vehicle; wherein the muffler has a tail pipe for directing exhaust gases in a forward direction diagonal to a longitudinal centerline of the snowplow vehicle so that a stream of exhaust gases discharged from the tail pipe does not strike on the auger housing. 8. A self-propelled walk-behind snowplow vehicle comprising: a vehicle body; an engine mounted on an upper part of the vehicle body; left and right traveling units mounted on a lower part of the vehicle body at left and right sides thereof; a muffler connected to the engine, the muffler being disposed below the engine and located between the left and right traveling units; a carburetor connected to the engine; a cover enclosing the engine, the cover having an air intake hole formed in a rear end portion thereof and opening downward for introducing outside air into the cover and to the carburetor, the muffler being disposed below and forwardly of the air intake hole; and a partition wall disposed between the muffler and the air intake hole for blocking direct transmission of radiant heat from the muffler to the rear end portion of the cover including the air intake hole. 9. A self-propelled walk-behind snowplow vehicle according to claim 8; wherein the partition wall has an upper end vertically spaced from the cover and defining together with the cover a gap for allowing limited transmission of radiant heat from the muffler through the gap to the rear end portion of the cover including the air intake hole. 10. A self-propelled walk-behind snowplow vehicle according to claim 8; wherein the cover has a bottom wall formed with an opening from which part of air that has been used for cooling the engine is discharged, the muffler and the engine being connected together by an exhaust pipe extending vertically through the opening, and the partition wall being disposed rearward of the opening and configured so as to keep the discharged air from flowing behind the partition wall. 11. A self-propelled walk-behind snowplow vehicle according to claim 10; wherein the partition wall has a generally U-shaped configuration and is disposed with an open side of the U-shaped configuration facing forward. 12. A self-propelled walk-behind snowplow vehicle according to 8; further comprising an auger housing disposed forwardly of the vehicle body for receiving therein an auger driven by the engine, the auger housing extending in a widthwise direction of the snowplow vehicle; wherein the muffler has a tail pipe for directing exhaust gases in a forward direction diagonal to a longitudinal centerline of the snowplow vehicle so that a stream of exhaust gases discharged from the tail pipe does not strike on the auger housing. 13. A self-propelled walk-behind snowplow vehicle according to claim 8; wherein the left traveling unit has a left side frame extending in the longitudinal direction of the snowplow vehicle and a left driving wheel rotatably mounted on the left side frame; wherein the right traveling unit has a right side frame extending parallel to the left side frame; and a right driving wheel rotatably mounted on the right side frame; and wherein the left and right side frames are connected together by a cross member, the cross member being disposed rearward of the muffler. 14. A self-propelled walk-behind snowplow vehicle comprising: a vehicle body; an engine mounted on an upper part of the vehicle body; left and right traveling units mounted on a lower part of the vehicle body at left and right sides thereof; a muffler connected to the engine, the muffler being disposed below the engine and located between the left and right traveling units; and an auger housing disposed forwardly of the vehicle body for receiving therein an auger driven by the engine, the auger housing extending in a widthwise direction of the snowplow vehicle; wherein the muffler has a tail pipe for directing exhaust gases in a forward direction diagonal to a longitudinal centerline of the snowplow vehicle so that a stream of exhaust gases discharged from the tail pipe does not strike on the auger housing. 15. A self-propelled walk-behind snowplow vehicle according to claim 14; wherein the left traveling unit has a left side frame extending in the longitudinal direction of the snowplow vehicle and a left driving wheel rotatably mounted on the left side frame; wherein the right traveling unit has a right side frame extending parallel to the left side frame; and a right driving wheel rotatably mounted on the right side frame; and wherein the left and right side frames are connected together by a cross member, the cross member being disposed rearward of the muffler. 16. A self-propelled walk-behind snowplow vehicle according to claim 14; further comprising a carburetor connected to the engine; a cover enclosing the engine, the cover having an air intake hole formed in a rear end portion thereof and opening downward for introducing outside air into the cover and to the carburetor, the muffler being disposed below and forwardly of the air intake hole; and a partition wall disposed between the muffler and the air intake hole for blocking direct transmission of radiant heat from the muffler to the rear end portion of the cover including the air intake hole.

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Self-propelled walk-behind snowplow vehicle

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Self-propelled walk-behind snowplow vehicle

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