IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0208003
(2005-08-22)
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등록번호 |
US-7318311
(2008-01-15)
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발명자
/ 주소 |
- Wright,Edward R.
- Wright,William R.
- Waesche,Luke
- Velke,James D.
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출원인 / 주소 |
- Wright Manufacturing, Inc.
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
12 인용 특허 :
21 |
초록
▼
A lawn mower is provided. In certain example embodiments, the lawn mower includes an improved deck lift system and/or an improved brake pump lock-out system. In certain example embodiments, a deck lift system may lift/lower the cutter deck, engine deck, engine, and handle control assembly together a
A lawn mower is provided. In certain example embodiments, the lawn mower includes an improved deck lift system and/or an improved brake pump lock-out system. In certain example embodiments, a deck lift system may lift/lower the cutter deck, engine deck, engine, and handle control assembly together at the same time.
대표청구항
▼
The invention claimed is: 1. A lawn mower comprising: at least one cutting blade for cutting grass; first and second drive wheels; a cutter deck assembly and an engine deck, the engine deck supporting an engine that drives the at least one blade for cutting grass; a handle control assembly includin
The invention claimed is: 1. A lawn mower comprising: at least one cutting blade for cutting grass; first and second drive wheels; a cutter deck assembly and an engine deck, the engine deck supporting an engine that drives the at least one blade for cutting grass; a handle control assembly including at least a right hand lever and a left hand lever for allowing an operator to steer the mower by controlling the speed and direction of the first and second drive wheels; and a deck lift system for raising together each of the cutter deck assembly, engine deck, engine, and handle control assembly relative to a frame of the mower in changing a cutting height of the mower, said deck lift system comprising a lift handle, a port side rear deck lift torsion member, a starboard side rear deck lift torsion member, a bar interconnecting at least the port side and starboard side rear deck lift torsion members, and at least one elongated link extending in a forward/aft direction so as to move along with at least one of the torsion members, a front weldment that pivots relative to the frame, the front weldment including a port side front deck lift bracket, a starboard side front deck lift bracket, and a bar provided between and connecting the port side and starboard side front deck lift brackets so that the port side front deck lift bracket, starboard side front deck lift bracket and the bar of the front weldment move together in unison during operation of the deck lift system. 2. The mower of claim 1, wherein said lever when actuated causes each of the cutter deck assembly, engine deck, engine, and handle control assembly, as well as a dashboard of the mower, to move up/down relative to a frame of the mower. 3. The mower of claim 1, wherein the handle control assembly is supported by first and second spaced apart substantially vertically oriented plates or weldments, and wherein the first and second spaced apart substantially vertically oriented plates or weldments are rigidly mounted to a top portion of the engine deck. 4. The mower of claim 1, wherein the mower comprising first and second hydraulic pumps for controlling the first and second drive wheels via respective wheel motors, and wherein the mower is a zero radius turning mower capable of performing zero radius turns about a zero radius turning axis. 5. The mower of claim 1, wherein the mower comprises a seat for supporting a sitting operator. 6. The mower of claim 1, wherein the deck lift system does not include any chains that support or hold up the cutter deck assembly. 7. A lawn mower comprising: at least one cutting blade for cutting grass; first and second drive wheels; a cutter deck assembly and an engine deck, the engine deck supporting an engine that drives the at least one blade for cutting grass; a handle control assembly for allowing an operator to steer the mower by controlling the speed and direction of the first and second drive wheels; and a deck lift system for raising together each of the cutter deck assembly, engine deck, engine, and handle control assembly relative to a frame of the mower in changing a cutting height of the mower; wherein the deck lift system comprises a rear weldment that pivots relative to the frame about a first horizontal axis, the rear weldment including a port side rear deck lift bracket, a starboard side rear deck lift bracket, and a bar provided between and connecting the port side and starboard side rear deck lift brackets so that the port side rear deck lift bracket, starboard side rear deck lift bracket and the bar move together in unison during operation of the deck lift system; and wherein the deck lift system further comprises a front weldment that pivots relative to the frame about a second horizontal axis, the front weldment including a port side front deck lift bracket, a starboard side front deck lift bracket, and a bar provided between and connecting the port side and starboard side front deck lift brackets so that the port side front deck lift bracket, starboard side front deck lift bracket and the bar of the front weldment move together in unison during operation of the deck lift system. 8. The mower of claim 7, wherein the deck lift system further comprises an elongated non-threaded link interconnecting one of the rear deck lift brackets to one of the front deck lift brackets. 9. The mower of claim 8, wherein the deck lift system further comprises at least one hanger bracket that is pivotally connected between the cutter deck assembly and at least one of the front deck lift brackets. 10. The mower of claim 7, wherein the deck lift system comprises a lever that when actuated causes each of the cutter deck assembly, engine deck, engine, and handle control assembly, as well as a dashboard of the mower, to move up/down relative to a frame of the mower. 11. The mower of claim 7, wherein the handle control assembly is supported by first and second spaced apart substantially vertically oriented plates or weldments, and wherein the first and second spaced apart substantially vertically oriented plates or weldments are rigidly mounted to a top portion of the engine deck. 12. The mower of claim 7, wherein the mower comprises first and second hydraulic pumps for controlling the first and second drive wheels via respective wheel motors, and wherein the mower is a zero radius turning mower capable of performing zero radius turns about a zero radius turning axis. 13. The mower of claim 7, wherein the mower comprises a seat for supporting a sitting operator. 14. The mower of claim 7, wherein the deck lift system does not include any chains that support or hold up the cutter deck assembly.
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