IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0284556
(2011-10-28)
|
등록번호 |
US-8505936
(2013-08-13)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Evolution Technologies Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
12 인용 특허 :
95 |
초록
▼
There is provided a wheel mounting assembly having a wheel fork. The fork includes an interior and an inwardly extending protrusion disposed within the interior. The assembly includes a rotatable member operatively connected to the fork and disposed within the interior of the fork. The protrusion ab
There is provided a wheel mounting assembly having a wheel fork. The fork includes an interior and an inwardly extending protrusion disposed within the interior. The assembly includes a rotatable member operatively connected to the fork and disposed within the interior of the fork. The protrusion abuts and positions in place the rotatable member. The assembly includes a shaft. The rotatable member rotatably connects the shaft to the wheel fork. The assembly includes a retaining member connected to the shaft. The retaining member is configured to abut the protrusion of the fork and thus inhibit dislodgement of the rotatable member from the fork when the shaft is tilted relative to the fork.
대표청구항
▼
1. A wheel mounting assembly comprising: a wheel fork having an interior and an inwardly extending protrusion disposed within the interior;a rotatable member operatively connected to the fork and disposed within the interior of the fork, the protrusion abutting and positioning in place the rotatable
1. A wheel mounting assembly comprising: a wheel fork having an interior and an inwardly extending protrusion disposed within the interior;a rotatable member operatively connected to the fork and disposed within the interior of the fork, the protrusion abutting and positioning in place the rotatable member;a shaft, the rotatable member rotatably connecting the shaft to the wheel fork; anda retaining member connected to the shaft, the retaining member being configured to abut the protrusion of the fork and thus inhibit dislodgement of the rotatable member from the fork when the shaft is tilted relative to the fork. 2. The assembly as claimed in claim 1, wherein the protrusion is interposed between the retaining member and the rotatable member, and wherein the retaining member has an outer rim configured to abut said protrusion when the shaft is tilted relative to the fork, the retaining member thus acting to retain the rotatable member in place thereby. 3. The assembly as claimed in claim 1, wherein a bore extends through the protrusion, and wherein the retaining member has an outwardly extending outer rim having an outer diameter, the outer diameter of the outer rim being greater than that of the bore, and wherein the outer rim of the retaining member is configured to abut the protrusion when the shaft is tilted relative to the fork. 4. The assembly as claimed in claim 1, wherein the rotatable member and the retaining member form an annular groove within which the protrusion is disposed. 5. The assembly as claimed in claim 1, wherein a bore extends through the protrusion, wherein the retaining member has an inner body disposable through said bore and has an outer rim, the inner body and the outer rim of the retaining member being annular, the outer rim of the retaining member having a diameter larger than that of the inner body, and wherein the outer rim of the retaining member is configured to abut the protrusion when the shaft is tilted relative to the fork. 6. The assembly as claimed in claim 1, wherein the retaining member is a washer configured to function as a seat for anchoring and situating the rotatable member. 7. The assembly as claimed in claim 1, wherein the rotatable member is a bearing with an outer race and an inner race, the outer race of the bearing abutting the protrusion of the fork and the inner race abutting the retaining member. 8. The assembly as claimed in claim 1, wherein the shaft has a threaded end and wherein assembly further includes a threaded member connectable to said threaded end, the threaded member abutting the retaining member when said threaded member is threadably connected to the shaft and the retaining member abutting the rotatable member when said threaded member is threaded to the shaft. 9. The assembly as claimed in claim 1, wherein the fork has a cylindrical space within which the rotatable member is disposed and wherein the retaining member is configured to retain the rotatable member within said cylindrical space and inhibit the rotatable member from being pried out of the cylindrical space when the shaft is subjected to lateral force. 10. The assembly as claimed in claim 1, wherein the protrusion is annular. 11. In combination, the wheel mounting assembly as claimed in 1 together with a walker apparatus therefor. 12. A wheel mounting assembly comprising: a pivotable wheel fork rotatably connectable with a ground-engaging wheel, the fork having an interior;a frame portion having an interior, a first one of the fork and the frame portion having an inwardly extending protrusion disposed within its interior;a shaft coupled to a second one of the fork and the frame portion;a rotatable member operatively connected to the first one of the fork and the frame portion and disposed within the interior of the first one of the fork and the frame portion, the protrusion abutting and positioning in place the rotatable member, the rotatable member rotatably connects the shaft to the first one of the fork and the frame portion; anda retaining member connected to the shaft, the retaining member being configured to abut the protrusion and thus inhibit dislodgement of the rotatable member from the first one of the fork and the frame portion when the shaft is tilted relative to the first one of the fork and the frame portion. 13. The assembly as claimed in claim 12, wherein the protrusion is interposed between the retaining member and the rotatable member, and wherein the retaining member has an outer rim configured to abut said protrusion when the shaft is tilted relative to the first one of the fork and the frame portion, the retaining member thus acting to retain the rotatable member in place. 14. The assembly as claimed in claim 12, further including a securing member at least partially extending through the second one of the fork and the frame portion, the securing member coupling the shaft to the second one of the fork and the frame portion. 15. The assembly as claimed in claim 14, wherein the securing member is a set screw. 16. The assembly as claimed in claim 12, further including an alignment member having a first portion shaped to extend around and abut with the shaft and having a resilient second portion configured to abut against and slidably engage with portions of the first one of the wheel fork and the frame portion, the second portion of the alignment member being spaced-apart from the rotatable member, the alignment member thereby rotatably aligning and supporting pivoting of the wheel fork about the shaft. 17. The assembly as claimed in claim 12, wherein the retaining member has an inner body and an outer rim, wherein the inner body of the retaining member and the outer rim of the retaining member are annular, with the outer rim of the retaining member having a diameter larger than that of the inner body, and wherein the outer rim of the retaining member is configured to abut the protrusion when the shaft is tilted relative to the fork.
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