IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0597687
(2015-01-15)
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등록번호 |
US-9408449
(2016-08-09)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Muncy, Geissler, Olds & Lowe, P.C.
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인용정보 |
피인용 횟수 :
0 인용 특허 :
19 |
초록
▼
A stepless retractable handle assembly for luggage includes a handle grip and two retractable bars connected to the handle grip in such a manner that when pressed a press-button in the handle grip, two transmission plates in the handle grip are forced by the press-button to move transversely in reve
A stepless retractable handle assembly for luggage includes a handle grip and two retractable bars connected to the handle grip in such a manner that when pressed a press-button in the handle grip, two transmission plates in the handle grip are forced by the press-button to move transversely in reverse directions, and two connection shafts are forced by the transmission plates to move vertically in the respective retractable bars in biasing respective anchor clamps away from the inside walls of the outer tubes of the respective retractable bars for allowing adjustment of the height of respective inner tubes of the retractable bars. When released the press-button after the adjustment, the anchor clamps are returned to abut against the inside walls of the respective outer tubes, locking the inner tubes in the adjusted position.
대표청구항
▼
1. A stepless retractable handle assembly for luggage, comprising: a handle grip comprising a bottom grip shell and a top grip shell mounted on a top side of said bottom grip shell, said top grip shell comprising a button slot;two retractable bars, each said retractable bar comprising an outer tube
1. A stepless retractable handle assembly for luggage, comprising: a handle grip comprising a bottom grip shell and a top grip shell mounted on a top side of said bottom grip shell, said top grip shell comprising a button slot;two retractable bars, each said retractable bar comprising an outer tube and an inner tube axially slidably inserted into said outer tube, said inner tube having a top end thereof fixedly connected to said bottom grip shell of said handle grip;a control unit comprising a press-button and a first return device, said press-button being vertically movably mounted in said button slot of said top grip shell of said handle grip, said press-button comprising two first pushing abutment portions located at a bottom side thereof, said first return device being mounted between said bottom grip shell of said handle grip and said press-button;a transmission unit comprising two transmission plates, two bearing blocks and two connection shafts, said two transmission plates being transversely movably mounted in said bottom grip shell of said handle grip, each said transmission plate comprising two first bearing portions located at one end thereof and respectively abutted against said first pushing abutment portions of said press-button and a second pushing abutment portion located at an opposite end thereof, said two bearing blocks being respectively affixed to respective top ends of said inner tubes of said retractable bars, each said bearing block comprising a second bearing portion abutted against the second pushing abutment portion of one respective said transmission plate, said two connection shafts being respectively inserted into said inner tubes of said retractable bars and respectively connected to respective bottom ends of said bearing blocks; andtwo positioning units, each said positioning unit comprising an anchor clamp holder, an anchor clamp and a second return device, said anchor clamp holder being mounted in said inner tube of one respective said retractable bar and connected to a bottom end of one respective said connection shaft for movement with said inner tube of one respective said retractable bar relative to the associating said outer tube, said anchor clamp being pivotally connected to said anchor clamp holder and disposed in said outer tube of one respective said retractable bar and movable to frictionally abut against or release from an inside wall of said outer tube of the respective said retractable bar subject to vertical displacement of said anchor clamp holder in the respective said retractable bar, said second return device being stopped against said anchor clamp holder;wherein said anchor clamp holder comprises a fixed holder frame and a movable holder frame, said fixed holder frame being fixedly fastened to said inner tube of one respective said retractable bar and comprising a first locating hole, said movable holder frame being connected to the bottom end of the respective said connection shaft and comprising a first longitudinal sliding slot; each said positioning unit further comprises a first pivot pin inserted through said first locating hole of the respective said fixed holder frame and said first longitudinal sliding slot of the respective said movable holder frame; said anchor clamp is pivotally connected to a bottom end of the respective said movable holder frame. 2. The stepless retractable handle assembly for luggage as claimed in claim 1, wherein said movable holder frame of said anchor clamp holder comprises a first lateral hole and a second lateral hole; said anchor clamp comprises a first clamping arm and a second clamping arm, said first clamping arm comprising a first transverse guide hole located in one end thereof and a first pivot hole disposed adjacent to said first transverse guide hole, said second clamping arm comprising a second transverse guide hole located in one end thereof and a second pivot hole disposed adjacent to said second transverse guide hole; each said positioning unit further comprises a first pivot bolt and a second pivot bolt, said first pivot bolt being inserted through said first lateral hole of the respective said movable holder frame and said first transverse guide hole of the respective said first clamping arm, said second pivot bolt being inserted through said second lateral hole of the respective said movable holder frame and said second transverse guide hole of the respective said second clamping arm; said first pivot pin is inserted through said first pivot hole of the respective said first clamping arm and said second pivot hole of the respective said second clamping arm. 3. The stepless retractable handle assembly for luggage as claimed in claim 2, wherein said anchor clamp further comprises a first friction member and a second friction member, said first friction member being mounted at an opposite end of the respective said first clamping arm and releasably abutted against the inside wall of said outer tube of the respective said retractable bar, said second friction member being mounted at an opposite end of the respective said second clamping arm and releasably abutted against the inside wall of said outer tube of the respective said retractable bar. 4. The stepless retractable handle assembly for luggage as claimed in claim 2, wherein said first clamping arm comprises a first spring groove extending around said first pivot hole of the respective said first clamping arm; said second clamping arm comprises a second spring groove extending around said second pivot hole of the respective said second clamping arm; said anchor clamp further comprises two torsion springs respectively mounted on two opposite ends of the respective said first pivot pin and respectively accommodated in said first spring groove in said first clamping arm and said second spring groove in said second clamping arm. 5. The stepless retractable handle assembly for luggage as claimed in claim 1, wherein said fixed holder frame further comprises a second locating hole spaced below the associating said first locating hole; said movable holder frame further comprises a second longitudinal sliding slot spaced below the associating said first longitudinal sliding slot; each said positioning unit further comprises a supplementary anchor clamp, said supplementary anchor clamp being pivotally connected the bottom end of the respective said movable holder frame by a respective second pivot pin, said second pivot pin being inserted through said second locating hole of the respective said fixed holder frame and said second longitudinal sliding slot of the respective said movable holder frame. 6. The stepless retractable handle assembly for luggage as claimed in claim 5, wherein said movable holder frame of said anchor clamp holder comprises a first lateral hole, a second lateral hole opposite to said first lateral hole, a third lateral hole spaced below said first lateral hole and a fourth lateral hole spaced below said second lateral hole; said anchor clamp comprises a first clamping arm and a second clamping arm, said first clamping arm comprising a first transverse guide hole located in one end thereof and a first pivot hole disposed adjacent to said first transverse guide hole, said second clamping arm comprising a second transverse guide hole located in one end thereof and a second pivot hole disposed adjacent to said second transverse guide hole; each said positioning unit further comprises a first pivot bolt and a second pivot bolt, said first pivot bolt being inserted through said first lateral hole of the respective said movable holder frame and said first transverse guide hole of the respective said first clamping arm, said second pivot bolt being inserted through said second lateral hole of the respective said movable holder frame and said second transverse guide hole of the respective said second clamping arm; said first pivot pin is inserted through said first pivot hole of the respective said first clamping arm and said second pivot hole of the respective said second clamping arm; said supplementary anchor clamp comprises a third clamping arm and a fourth clamping arm, said third clamping arm comprising a third pivot hole located in one end thereof, said fourth clamping arm comprising a fourth pivot hole located in one end thereof; said second pivot pin is inserted through said third pivot hole of the respective said third clamping arm and said fourth pivot hole of the respective said fourth clamping arm; each said positioning unit further comprises a third pivot bolt and a fourth pivot bolt, said third pivot bolt being inserted through said third lateral hole of the respective said movable holder frame and stopped at the outer perimeter of the respective said third clamping arm, said fourth pivot bolt being inserted through said fourth lateral hole of the respective said movable holder frame and stopped at the outer perimeter of the respective said fourth clamping arm. 7. The stepless retractable handle assembly for luggage as claimed in claim 6, wherein said anchor clamp further comprises a first friction member, a second friction member, a third friction member and a fourth friction member, said first friction member being mounted at an opposite end of the respective said first clamping arm and abutted against the inside wall of said outer tube of the respective said retractable bar, said second friction member being mounted at an opposite end of the respective said second clamping arm and abutted against the inside wall of said outer tube of the respective said retractable bar, said third friction member being mounted at an opposite end of the respective said third clamping arm and abutted against the inside wall of said outer tube of the respective said retractable bar, said fourth friction member being mounted at an opposite end of the respective said fourth clamping arm and abutted against the inside wall of said outer tube of the respective said retractable bar. 8. The stepless retractable handle assembly for luggage as claimed in claim 7, wherein said first clamping arm comprises a first spring groove extending around said first pivot hole of the respective said first clamping arm; said second clamping arm comprises a second spring groove extending around said second pivot hole of the respective said second clamping arm; said third clamping arm comprises a third spring groove extending around said third pivot hole of the respective said third clamping arm; said fourth clamping arm comprises a fourth spring groove extending around said fourth pivot hole of the respective said fourth clamping arm; said anchor clamp further comprises four torsion springs, two said torsion springs being respectively mounted on two opposite ends of the respective said first pivot pin and respectively accommodated in said first spring groove in the respective said first clamping arm and said second spring groove in the respective said second clamping arm, the other said torsion springs being respectively mounted on two opposite ends of the respective said second pivot pin and respectively accommodated in said third spring groove in the respective said third clamping arm and said fourth spring groove in the respective said fourth clamping arm. 9. The stepless retractable handle assembly for luggage as claimed in claim 1, wherein said fixed holder frame of said anchor clamp holder comprises a lower bearing wall; said movable holder frame comprises an upper bearing wall; said second return device of each said positioning unit is mounted between said lower bearing wall of the respective said fixed holder frame and said upper bearing wall of the respective said movable holder frame.
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