Patent US3561787A successfully refreshed from Google Patents.
US3561787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible frame for a baby carriage
Assignee: Suzuki Baby Co Ltd
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Filing: 1968-12-20
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Granted: 1971-02-09
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Expires: 1988-12-20
Abstract
Abstract A baby carriage frame is collapsible from an open position to a closed position. The frame is formed of a forward frame section and a rearward frame section pivotally interconnected by a support section and with a hand rail section pivotally secured to the forward frame section and articulated to the rearward frame section by a connector member. The connector member includes a locking notch into which a locking member mounted on the support section is engaged in the open position. With the locking member disengaged the various frame sections pivot relative to one another into a compact arrangement.
Inventors
- 👤 Tokuzoh Toda
- 👤 Isao Niino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:40
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/10; B62B9/00; B62B9/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
349 words
A collapsible frame for a baby carriage having a front end and a rear end and being foldable between an open position and a closed position, the frame comprising, in the open position, a forward frame section extending generally upwardly and rearwardly from the front end of the frame, a pair of front wheels attached to the lower end of said forward frame section, a support section pivotally secured to the lower part of said forward frame section above the point of attachment of said front wheels to said forward frame section and extending rearwardly therefrom in a generally horizontal position with the front and rear ends thereof each disposed in a horizontal plane and with the front end located vertically below the rear end, a handrail section disposed in a generally horizontal position and pivotally secured to said forward frame section at a location spaced upwardly from the location where said support section is secured to said forward frame section, a rearward frame section extending generally upwardly and forwardly from the rear end of the frame and pivotally secured to the rearward part of said support section at a position intermediate its upper and lower ends, a pair of rear wheels attached to the lower end of said rearward frame section vertically below the location at which said rearward frame section is secured to said support section, connector means rigidly secured to the upper end of said rearward frame section, the rearward end of said handrail section pivotally attached to said connector means, and a locking member secured on said support section and extending upwardly therefrom for engagement with said connector means in the open position of the frame, whereby in folding the frame into the closed position said locking member is disengaged from said connector means, said handrail section is pivoted downwardly toward said forward frame section, said support section and said forward frame section are pivoted toward one another and the lower end of said rearward frame section is pivoted toward said support section so that said rear wheels are displaced forwardly toward said front wheels.
Claim 2
Dependent Claim
349 words
A collapsible frame for a baby carriage having a front end and a rear end and being foldable between an open position and a closed position, the frame comprising, in the open position, a forward frame section extending generally upwardly and rearwardly from the front end of the frame, a pair of front wheels attached to the lower end of said forward frame section, a support section pivotally secured to the lower part of said forward frame section above the point of attachment of said front wheels to said forward frame section and extending rearwardly therefrom in a generally horizontal position with the front and rear ends thereof each disposed in a horizontal plane and with the front end located vertically below the rear end, a handrail section disposed in a generally horizontal position and pivotally secured to said forward frame section at a location spaced upwardly from the location where said support section is secured to said forward frame section, a rearward frame section extending generally upwardly and forwardly from the rear end of the frame and pivotally secured to the rearward part of said support section at a position intermediate its upper and lower ends, a pair of rear wheels attached to the lower end of said rearward frame section vertically below the location at which said rearward frame section is secured to said support section, connector means rigidly secured to the upper end of said rearward frame section, the rearward end of said handrail section pivotally attached to said connector means, and a locking member secured on said support section and extending upwardly therefrom for engagement with said connector means in the open position of the frame, whereby in folding the frame into the closed position said locking member is disengaged from said connector means, said handrail section is pivoted downwardly toward said forward frame section, said support section and said forward frame section are pivoted toward one another and the lower end of said rearward frame section is pivoted toward said support section so that said rear wheels are displaced forwardly toward said front wheels.
Claim 3
Dependent Claim
119 words
A collapsible frame, as set forth in claim 1, wherein said connector means comprising a pair of plate members each bent along one edge into a C-shaped section and the C-shaped sections of said plate members rigidly secured to said rearward frame section, portion of said plate members extending from said C-shaped sections thereof extending toward the front end of the frame from said rearward frame section, a notch formed in the periphery of the portion of said plate members extending from said C-shaped sections, said notch arranged to receive said locking member, and said locking member comprising a rod member secured to said support section and extending upwardly therefrom for engagement within the notch in said plate member.
Claim 4
Dependent Claim
41 words
A collapsible frame, as set forth in claim 2, wherein a spring member being secured to said support section for biasing said locking member into engagement with in the notch in said plate member in the open position of said frame.
Claim 5
Dependent Claim
65 words
A collapsible frame, as set forth in claim 1, wherein a seat back member articulated to said connector means, and means for locking said seat back member in the open position so that when said locking means are released said seat back member is foldable from a generally upwardly extending position in the open position to a generally horizontally extending positIon in the closed position.
Claim 6
Dependent Claim
132 words
A collapsible frame, as set forth in claim 1, wherein said support section being rectangular in shape with its front end and rear end being connected by a pair of oppositely spaced side portions, the front end of said support section being located forwardly of the lower end of said forward frame section and forming a foot support, the side portions of said support section located adjacent the front end thereof having a generally V-shaped configuration and the side portions of said support section adjoining said rear end thereof being rectilinearly arranged in a horizontal plane and spaced below said connector means, hanger means secured to and extending downwardly from the horizontally arranged side portions of said support section adjoining said rear end thereof, and a basket removably mounted on said hangers.
Claim 7
Dependent Claim
130 words
A collapsible frame, as set forth in claim 1, wherein said forward frame section comprising lower part secured to said support section and an upper handle part secured to and extending upwardly from the upper end of said lower part in the open position, said support section and handrail section being pivotally attached to said lower part of said forward frame section, means for maintaining said lower part and said upper handle part in extended relationship in the open position, and a shade cover pivotally mounted on said handle part and disposed in a generally horizontal position, said shade cover movably positionable on said handle part, and said shade cover having a front section and a rear section pivotally secured together for pivotal movement of one relative to the other.
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |