[특허]Rotary trimmer apparatus and related rotary head assembly

Rotary trimmer apparatus and related rotary head assembly 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A01D-034/416
출원번호	US-0690583 (2012-11-30)
등록번호	US-9642302 (2017-05-09)
발명자 / 주소	Jerez, Orlando
출원인 / 주소	Jerez, Orlando
대리인 / 주소	Norton IP Law Firm
인용정보	피인용 횟수 : 0 인용 특허 : 67

초록 ▼

An apparatus and method are provided for removing a retained member from a rotary head assembly configured for attachment to a rotary power source. The rotary head assembly can be configured to permit quick and easy trimmer line insertion in order to resume operation of the apparatus as well as simp

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1. An apparatus comprising a rotary head assembly configured for attachment to a rotary power source, the rotary head assembly comprising a rotary head housing defining one or more slots, each of the slots being intersected by at least a portion of a respective retention member chamber defined by the rotary head housing, and each of the slots being sized and configured to receive a respective retained member;a first face and a second face, wherein the first face and the respective retention member chamber define a respective first face aperture;one or more retention members, each comprising a first retention member portion and a second retention member portion, wherein the second retention member portion is sized and configured such that at least a portion of the second retention member portion may be disposed within a respective retention member chamber; andone or more biasing members, each biasing member and a respective one of the retention members being coupled to the rotary head housing and each biasing member biasing the respective retention member so that (i) the first retention member portion extends through the respective first face aperture and is external of the respective retention member chamber such that the first retention member portion is accessible to manipulation by an actuating external force and (ii) the second retention member portion thereof in the respective retention member chamber intersects and extends through a respective one of the slots, thereby retaining a portion of the retained member within the respective slot;wherein each retention member and respective biasing member are sized and configured so that, when the actuating external force is applied to the first retention member portion, the retention member is actuated causing a bias of the biasing member to be overcome and the second retention member portion to be removed from the respective slot, thereby releasing the respective retained member from the respective slot;wherein at least a portion of the second retention member portion is geometrically shaped, and an aperture defined by the retained member is defined in a geometrical mating fashion relative to the geometrically shaped second retention member portion, so that the second retention member portion is removed from the aperture defined by the retained member through which the second retention member portion extends only when the second retention member portion is in key-and-lock style geometric alignment with the aperture defined by the retained member; andwherein each of the one or more retention members forms a J-shaped retention member, a straight portion of the retention member forming the first retention member portion and at least a portion of a curved portion of the J-shaped retention member forming the second retention member portion. 2. The apparatus of claim 1 wherein the retention member chamber defined by the rotary head housing comprises a first retention member chamber portion and a second retention member chamber portion and the rotary head housing further defines a sidewall at least semi-encircling the first face aperture, a top portion of the sidewall extending further from the first face than the first retention member portion when biased by the biasing member. 3. The apparatus of claim 1 wherein the first retention member portion comprises a first retention member head portion coupled to a first retention member shaft portion. 4. The apparatus of claim 3 wherein the retention member is disposed within the retention member chamber such that the first retention member shaft portion extends through the first retention member chamber portion, the first face aperture, and the biasing member and is further coupled to the first retention member head portion such that the biasing member and the retention member are coupled to the rotary head housing. 5. The apparatus of claim 4 wherein the biasing member is a spring. 6. The apparatus of claim 2 wherein the second retention member chamber portion intersects the respective slot. 7. The apparatus of claim 6 wherein the first retention member chamber portion and the second retention member chamber portion each intersect the respective slot. 8. The apparatus of claim 1 wherein the first retention member portion comprises a first retention member head portion coupled to a first retention member shaft portion. 9. The apparatus of claim 3 wherein the diameter of the second retention member portion is greater than the diameter of the first retention member shaft portion. 10. The apparatus of claim 1 wherein the portion of the curved portion of the J-shaped retention member forming the second retention member portion forms a square-shaped cross section. 11. The apparatus of claim 10 wherein the retained member is a trimmer line, wherein the trimmer line is inserted into the respective slot and wrapped around and retained by the retention member, the end portions of the trimmer line extending distally from the respective slot. 12. The apparatus of claim 1 wherein the retained member defines a retained member aperture sized and configured to accept the second retention member portion therethrough, such that the retained member is retained by the retention member. 13. The apparatus of claim 12 wherein the retained member is selected from the group consisting of a trimmer line holder, a broom apparatus, a mixer blade, a blower blade, and a propeller blade. 14. The apparatus of claim 13 wherein the trimmer line holder defines one or more recesses and a respective slot opening, wherein the trimmer line holder comprises a hook member disposed within the respective recess, the hook member capable of retaining a trimmer line when the trimmer line as folded is wrapped around the hook member and the remainder of the trimmer line extending through the respective slot opening and distally from the trimmer line holder.

이 특허에 인용된 특허 (67)

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Jerez Orlando, Cultivator implement with castellated cultivating protrusions and multi-implement, powered, cultivation system.
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Civalleri Davide,ITX, Cutting head for a wire cutting machine, in particular a strimmer.
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Emmanuel Legrand FR, Cutting head for brush cutters or edge trimmers.
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Johnson Jay, Double-headed vegetation trimmer.
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Jerry Frederick L. (21331 Kipling St. Oak Park MI 48237), Grass cutter and leaf blower blade.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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Rotary trimmer apparatus and related rotary head assembly 원문보기

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Rotary trimmer apparatus and related rotary head assembly 원문보기

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이 특허에 인용된 특허 (67)

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