[특허]Caster

Samsung Electronics Co., Ltd.

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""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

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MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Caster

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60B-033/06 B60B-033/04
미국특허분류(USC)	016/032; 016/044; 016/105
출원번호	US-0872487 (2004-06-22)
등록번호	US-7356877 (2008-04-15)
우선권정보	KR-10-2003-0044536(2003-07-02)
발명자 / 주소	Kim,Byoung taek Kim,Sang hak
출원인 / 주소	Samsung Electronics Co., Ltd.
대리인 / 주소	Stanzione & Kim, LLP
인용정보	피인용 횟수 : 5 인용 특허 : 5

초록
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A caster includes a fixing portion installed on a bottom surface of an object, a wheel portion which is installed to be elevated into a flange portion and has a moving wheel provided on a bottom surface of the wheel portion, and an elevating portion to control the wheel portion to elevate into the flange portion. The wheel portion descends from the fixing portion to move the object and elevates into the fixing portion to fixedly dispose the object in a position. Therefore, a height of the caster is controlled to be high when the heavy object is being mov...

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청구항
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What is claimed is: 1. A caster used with an object comprising: a fixing portion installed on a bottom surface of an object; a wheel portion which is installed to be elevated into the fixing portion and has a moving wheel provided on a bottom surface of the wheel portion; an elevating portion having a rotating member disposed on a portion of the elevating portion to be rotatable with respect to the elevating portion and a guide plate contacting a rolling member of the elevating portion to control the wheel portion to be elevated into the fixing portion between a first fixed position and a second fixed position such that the wheel does not enter the fixing portion and the guide plate guides the rotating member when a force is applied to the elevating portion to push the object and the wheel portion together with respect to a reference position; and, an elastic member installed on an upper surface of a body of therotating member to elastically bias the rotating member in a downward direction of the fixing portion, wherein the wheel portion descends from the fixing portion into the first fixed position to move the object and elevates with respect to the fixing portion into the second fixed position to fixedly dispose the object in a position. 2. The caster of claim 1, wherein the fixing portion comprises: a flange having a plurality of penetrating holes so that the flange can be fixed on the bottom surface of the object using a coupling unit; and a cylinder protruding from the flange and having a hollow inner space so that the wheel portion is inserted and elevated within the hollow inner space of the cylinder. 3. The caster of claim 2, wherein the fixing portion comprises a fixing unit disposed on a lower side of the cylinder to prevent the wheel portion from escaping from the cylinder. 4. The caster of claim 3, wherein the wheel portion includes a suspending step disposed within the cylinder to control the fixing unit to be suspended within the cylinder. 5. The caster of claim 1, wherein: the rotating member includes a semicylindrical body mounted on an upper side of the wheel portion to be rotatable in left and right directions with respect to the fixing portion, and a guide portion that protrudes from one end of the body and includes the rolling portion on the other end of the guide portion; and the guide plate protrudes from an inner wall of the fixing portion to contact the rolling portion to guide an operation of the rotating member when the wheel portion is elevated within the fixing portion. 6. The caster of claim 5, wherein the fixing portion comprises a protrusion unit formed on an inner upper surface thereof to support one side of the spring. 7. The caster of claim 5, wherein the guide portion is disposed eccentrically with respect to the body. 8. The caster of claim 5, wherein the guide plate comprises a concave recess, on which the rolling portion is disposed, to control the wheel portion to be elevated with respect to the fixing portion. 9. The caster of claim 5, wherein the wheel portion comprises a controlling unit into which the rotating member is inserted to control a rotation of the rotating member. 10. The caster of claim 1, wherein the rotating member is rotated around a perimeter of the guide plate when switching between the first and second fixed positions. 11. The caster of claim 1, wherein the rotating member and the guide plate are enclosed within the fixing portion by inner sidewalls of the fixing portion. 12. A caster used with an object, comprising: a fixing portion including a cylindrical portion being insertable into the object in a first direction with respect to a bottom surface of the object and a flange projecting outward from side surfaces of the cylindrical portion in a second direction that is perpendicular to the first direction and having at least one fastener hole to attach to the bottom surface of the object when the cylindrical portion is inserted into the object; a wheel portion having a supporting portion movably inserted into an inside of the cylindrical portion, a rotating portion disposed to protrude from the supporting portion in a third direction opposite to the first direction, and a moving wheel rotatably installed on the rotating portion wherein the wheel does not enter the fixing portion; an elevating portion to control the supporting portion to change a height of the wheel portion with respect to the flange in the third direction; and an elastic member to bias the wheel portion in the third direction. 13. The caster of claim 12, wherein the elevating portion comprises: a guide plate formed on an inside surface of the cylindrical portion; and a rotating member formed on the supporting portion to communicate with the guide plate to change the height of the wheel portion. 14. The caster of claim 13, wherein the guide plate is inclined with respect to the first and third directions. 15. The caster of claim 13, wherein the guide plate comprises two sides, a recess formed between first ends of the two sides, and the rotating member comprises a rolling portion to rotatably travel along the two side, the recess, and the round portion of the guide plate to change the height of the wheel portion. 16. The caster of claim 15, wherein the height comprises a first height when the rolling portion is disposed on the recess of the guide plate, and a second height greater than the first height when the rolling portion is disposed around the round portion of the guide plate. 17. The caster of claim 15, wherein the two sides of the guide plate have an angle with respect to the first or third direction. 18. The caster of claim 12, wherein the elevating portion is disposed the inside of the cylindrical portion of the fixing portion. 19. The caster of claim 12, wherein the fixing portion and the wheel portion comprise a fixing unit and a supporting step, respectively, to limit the height of the wheel portion with respect to the flange in the third direction. 20. A caster used with an object having a main body and a bottom surface, comprising: a fixing portion having a flange attached to the bottom surface of the object, and having a cylindrical portion extended from the flange toward an inside of the main body; a wheel portion having a supporting portion movably inserted into an inside of the cylindrical portion, having a rotating portion extended from the supporting portion toward an outside of the main body, and having a moving wheel rotatably attached to the rotating portion; and an elevating portion disposed in the cylindrical portion, and having a guide plate formed on the inside of the cylindrical portion, a rotating member rotatably installed on the supporting portion to communicate with the guide plate to control the supporting portion to move with respect to the fixing portion so that a distance between the moving wheel and the bottom surface of the object varies, and an elastic member to bias the rotation member toward the wheel portion. 21. A caster usable with an object, comprising: a hollow fixing part that is insertable in a bottom surface of the object; an elevating part coupled to the hollow fixing part to support a wheel between an elevated position and a descended position with respect to the hollow fixing part, the elevating part including: a spring disposed in the hollow fixing part to bias the wheel in a direction along a central axis of the hollow fixing part, a guiding plate disposed adjacent to inner walls of the hollow fixing part, and a moving member enclosed within the hollow fixing part by the inner walls of the hollow fixing part and coupled to the spring to lock the wheel in one of the elevated and the descended positions by engaging the guiding plate of the hollow fixing part. 22. The caster of claim 21, wherein a first vertical push of the wheel causes the moving member to position the wheel in the elevated position with respect to the hollow fixing part, and a second vertical push of the wheel causes the moving member to position the wheel in the descended position with respect to the hollow fixing part.

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구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
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Caster

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Caster

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이 특허에 인용된 특허 (5)

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IPC 상세정보(version : 201201)

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