US5110150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible mechanism for a stroller
Assignee: Individual
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Filing: 1991-04-23
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Granted: 1992-05-05
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Expires: 2011-04-23
Abstract
Abstract This invention relates to a collapsible mechanism for a stroller and in particular to one which includes an engaging seat formed with a longitudinal passage for slidably receiving the rear wheel support and two opposite lugs and a recess at a top thereof, a coupling block connected at one end with the handle support and having at the other end an angular portion adapted to receive the rear wheel support and be received in the recess of the engaging seat, a spring disposed within the semi-cylindrical chamber of the engaging seat, a stop member engaged with the rear wheel support and enclosed by the engaging seat and in contact at a top end with a bottom end of the spring end of the spring, and a crank arm pivoted on the rear wheel support at one end and on the handle support at the other.
Inventors
- 👤 Shun-Min Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:43
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/08; B62B2205/00; B62B2205/20; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32327; Y10T403/32336
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
The collapsible mechanism for a stroller with a handle support and a rear wheel support on each side of said stroller, comprising: an engaging seat member formed with a longitudinal passage extending therethrough for slidably receiving said rear wheel support two opposite lugs extending from a top of said seat member, and a recess formed in the top of said seat member, said longitudinal passage having a semi-cylindrical chamber at one side thereof; a coupling block having one end connected said handle support and an opposite end having a slot adapted to receive said rear wheel support, said opposite end including an angular portion adapted to be received within the recess of said engaging seat member, said angular portion of said coupling block having outer sidewalls with a protuberance provided on each of said outer sidewalls; a spring disposed within the semi-cylindrical chamber of said engaging seat; a stop member engaged with said rear wheel support and received within said semi-cylindrical chamber, said stop member having a top end in contact with a bottom end of said spring; and a crank arm having one end pivotally connected to said rear wheel support and an opposite end pivotally connected to said handle support.
Claim 2
Dependent Claim
202 words
The collapsible mechanism for a stroller with a handle support and a rear wheel support on each side of said stroller, comprising: an engaging seat member formed with a longitudinal passage extending therethrough for slidably receiving said rear wheel support two opposite lugs extending from a top of said seat member, and a recess formed in the top of said seat member, said longitudinal passage having a semi-cylindrical chamber at one side thereof; a coupling block having one end connected said handle support and an opposite end having a slot adapted to receive said rear wheel support, said opposite end including an angular portion adapted to be received within the recess of said engaging seat member, said angular portion of said coupling block having outer sidewalls with a protuberance provided on each of said outer sidewalls; a spring disposed within the semi-cylindrical chamber of said engaging seat; a stop member engaged with said rear wheel support and received within said semi-cylindrical chamber, said stop member having a top end in contact with a bottom end of said spring; and a crank arm having one end pivotally connected to said rear wheel support and an opposite end pivotally connected to said handle support.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-05 | 1995-11-04 | 1996-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-05 | 1999-11-04 | 2000-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-05 | 2003-11-04 | 2004-05-05 | $7700.00 | Window Closed / Lapsed |