[특허]Bush cutter with a versatile operating rod

[미국특허] Bush cutter with a versatile operating rod 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B26B-007/00 B26B-015/00 B26B-009/00
출원번호	US-0057069 (2009-07-06)
등록번호	US-8695223 (2014-04-15)
우선권정보	JP-2008-206927 (2008-08-11)
국제출원번호	PCT/JP2009/062281 (2009-07-06)
§371/§102 date	20110201 (20110201)
국제공개번호	WO2010/018719 (2010-02-18)
발명자 / 주소	Ito, Ryosuke
출원인 / 주소	Makita Corporation
대리인 / 주소	Oliff PLC
인용정보	피인용 횟수 : 1 인용 특허 : 43

초록 ▼

A bush cutter comprises an operating rod, a cutting unit, a main unit and a transfer shaft. The cutting unit is disposed at a front end of the operating rod and rotatably supports a cutting blade. The main unit is disposed at a rear end of the operating rod and houses a motor that drives the cutting blade. The transfer shaft is disposed within the operating rod and transfer output torque of the motor from the main unit to the cutting unit. An adapter is fixed to the rear end of the operating rod and the main unit is provided with a rod insertion hole configured to receive the rear end of the operating rod with the adapter fixed. This configuration may prevent the operating rod, which has versatility, from being erroneously assembled.

대표청구항 ▼

1. A bush cutter comprising: an operating rod;a cutting unit disposed at a front end of the operating rod and configured to rotatably support a cutting blade;a main unit disposed at a rear end of the operating rod;a motor that drives the cutting blade; andan adapter fixed to an outer circumferential surface of the rear end of the operating rod, wherein the main unit is provided with a rod insertion hole receiving the rear end of the operating rod with the adapter fixed, wherein:the rod insertion hole comprises a first portion and a second portion along a longitudinal direction of the rod insertion hole;the first portion has a constant diameter along the longitudinal direction and is configured to directly hold the operating rod; andthe second portion has a diameter that changes along the longitudinal direction and is configured to hold the adapter fixed to the operating rod. 2. A bush cutter as in claim 1, wherein the adapter is a sleeve-shaped member and fits onto the outer circumferential surface of the operating rod. 3. A bush cutter as in claim 2, wherein the sleeve-shaped adapter has a tapered shape in which a diameter of the adapter decreases toward the rear end of the operating rod. 4. A bush cutter as in claim 1, wherein one of the operation rod and the adapter is provided with a protrusion, and the other of the operation rod and the adapter is provided with a recess configured to engage with the protrusion. 5. A bush cutter as in claim 1, wherein the adapter is made of elastomer material. 6. A bush cutter as in claim 1, wherein the operating rod is a common part with a different model of bush cutter, and the operating rod is configured to be attached to a main unit of the different model of bush cutter with the adapter removed. 7. A bush cutter as in claim 2, wherein one of the operation rod and the adapter is provided with a protrusion, and the other of the operation rod and the adapter is provided with a recess configured to engage with the protrusion. 8. A bush cutter as in claim 7, wherein the adapter is made of elastomer material. 9. A bush cutter as in claim 7, wherein the operating rod is a common part with a different model of bush cutter, and the operating rod is configured to be attached to a main unit of the different model of bush cutter with the adapter removed. 10. A bush cutter as in claim 3, wherein one of the operation rod and the adapter is provided with a protrusion, and the other of the operation rod and the adapter is provided with a recess configured to engage with the protrusion. 11. A bush cutter as in claim 10, wherein the adapter is made of elastomer material. 12. A bush cutter as in claim 10, wherein the operating rod is a common part with a different model of bush cutter, and the operating rod is configured to be attached to a main unit of the different model of bush cutter with the adapter removed. 13. A bush cutter as in claim 4, wherein the adapter is made of elastomer material. 14. A bush cutter as in claim 4, wherein the operating rod is a common part with a different model of bush cutter, and the operating rod is configured to be attached to a main unit of the different model of bush cutter with the adapter removed. 15. A bush cutter as in claim 1, wherein the motor is housed within the main unit, and the bush cutter further comprises a transfer shaft disposed within the operating rod and configured to transfer output torque of the motor from the main unit to the cutting unit.

이 특허에 인용된 특허 (43) 인용/피인용 타임라인 분석

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이 특허를 인용한 특허 (1) 인용/피인용 타임라인 분석

Ackerman, LaVern L.; Janey, Gregory S.; Heal, Karl D.; Kanitz, Allan D., Outdoor power equipment system with modular motor and modular battery.
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[미국특허] Bush cutter with a versatile operating rod 원문보기

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이 특허에 인용된 특허 (43) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (1) 인용/피인용 타임라인 분석

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