IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0438286
(2006-05-23)
|
등록번호 |
US-7331428
(2008-02-19)
|
우선권정보 |
TW-95204289 U(2006-03-15) |
발명자
/ 주소 |
|
출원인 / 주소 |
- C & C Luggage Manufacturing Co., Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
16 |
초록
▼
A wheel assembly for a luggage includes switch member provided on a base of the wheel assembly at a fixed location. The switch member is connected to a driven shaft, and the driven shaft is connected to a brake member. The brake member has a stop portion associated with a wheel. When the switch memb
A wheel assembly for a luggage includes switch member provided on a base of the wheel assembly at a fixed location. The switch member is connected to a driven shaft, and the driven shaft is connected to a brake member. The brake member has a stop portion associated with a wheel. When the switch member is moved, the brake member is moved proximal to or distal to the wheel via the driven shaft so as to brake or release the wheel.
대표청구항
▼
What is claimed is: 1. A wheel assembly for luggage comprising: a base, which is fixed to a bottom side of the luggage, having an upper bore; a frame, rotatably engaged on the base, having a lower bore; a wheel, which is pivoted on the frame, having a running portion and at least one stop portion,
What is claimed is: 1. A wheel assembly for luggage comprising: a base, which is fixed to a bottom side of the luggage, having an upper bore; a frame, rotatably engaged on the base, having a lower bore; a wheel, which is pivoted on the frame, having a running portion and at least one stop portion, wherein the running portion has a diameter greater than that of the stop portion; and a brake device including a switch member, a driven shaft and a brake member, wherein the switch member has an activating end exposed out through a slot in the base, a central portion pivoted in an interior of the base and a driving end pivoted to the shaft, wherein at least one spring is compressed between the driving end of the switch and the base into respective abutting engagement therewith, wherein a user can move the switch between a first switch position and a second switch position, wherein the driven shaft is received in the upper bore of the base and the lower bore of the frame with a top member, wherein the brake member has a stop portion connected to a bottom end of the driven shaft; wherein when the switch member is moved to the first switch position by the user, the driven shaft is moved along a first shaft direction so as to move the stop portion of the brake member into engagement with the stop portion of the wheel and held there by the spring, and when the switch member is moved to the second switch position by the user, the driven shaft is moved along a second shaft direction so as to move the stop portion of the brake member out of engagement with the stop portion of the wheel and held there by the spring. 2. The wheel assembly as defined in claim 1, wherein the switch member includes a first plate and a second plate, both of which are pivoted on the base, and the first plate has the activating end at an end thereof and a first teeth portion at an opposite end thereof, and the second plate has a second teeth portion at an end thereof to be meshed with the first teeth portion of the base and the driving end at an opposite end thereof. 3. The wheel assembly as defined in claim 1, wherein, The driven shaft has an annular slot adjacent to the top member, and the driving end of the switch member has two parallel protrusions, and the brake device includes a lid and a shaft, wherein the lid is connected to the top member of the driven shaft between the protrusions, and the shaft is inserted into a through hole of the lid and received in the annular slot of the driven shaft. 4. The wheel assembly as defined in claim 2, wherein, The driven shaft has an annular slot adjacent to the top member, and the driving end of the switch member has two parallel protrusions, and the brake device includes a lid and a shaft, wherein the lid is connected to the top end of the driven shaft between the protrusions and the shaft is inserted into a through hole of the lid and received in the annular slot of the driven shaft. 5. The wheel assembly as defined in claim 3, wherein the at least one springs has opposite ends respectively abuttingly engaged to the two protrusions of the switch member and an interior side of the base so as to locate the switch member at the first switch position or at the second switch position. 6. The wheel assembly as defined in claim 4, wherein the at least one spring has opposite ends abuttingly engaged to the two protrusions of the switch member and an interior side of the base respectively so as to locate the switch member at the first position or at the second position. 7. The wheel assembly as defined in claim 1, wherein the wheel has two of the stop portions, each having recesses and outer protrusions arranged in a circular pattern on opposite sides of the wheel, and the brake device has a top plate and two lateral plate projected downwards from opposite ends of the top plate, wherein the top plate is connected to the bottom end of the driven shaft, and the lateral plates are located at outer sides of the stop portions respectively, each of which has a stop block to form the stop portion, such that when the switch member is moved to the first position, the driven shaft is moved upwards to move the stop blocks of the lateral plates of the brake member into one of the recesses of the wheel. 8. The wheel assembly as defined in claim 7, wherein the top plate has a bore, and the bottom end of the driven shaft is inserted into the bore of the top plate, and an annular block is provided on the bottom end of the driven shaft, and the annular block has a diameter greater than that of the bore of the top plate. 9. A wheel assembly as defined in claim 2, wherein the wheel has two of the stop portions, which are teeth portions on opposite sides of the wheel, and the brake member has two teeth portions to be meshed with the teeth portions of the wheel when the switch member is moved to the first position to drive the second plates and the driven shaft moving downwards. 10. The wheel assembly as defined in claim 9, wherein the brake device has a first bore and a second bore communicated with each other, and the driven shaft, which has a lateral slot adjacent to the bottom end, has the bottom end inserted into the first bore, and the brake device includes a pin to be inserted into the second bore and received in the lateral slot. 11. The wheel assembly as defined in claim 1, further comprising a hub received in the upper bore of the base and the lower bore of the frame, which includes an upper stop protrusion at a top end thereof touching the an interior side of the base and a lower stop protrusion at a bottom end thereof touching an interior side of the frame, such that the frame is pivoted on the base for rotation. 12. The wheel assembly as defined in claim 11, further comprising a bearing, which has a ring plate and a plurality of balls, wherein the ring plate is located between the hub and the frame, which has a central hole to pass the driven shaft therethrough and a plurality of bores around the central hole to receive the balls respectively.
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