Patent US4610460A successfully refreshed from Google Patents.
US4610460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baby carriage
Assignee: Aprica Kassai KK
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Filing: 1984-04-19
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Granted: 1986-09-09
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Expires: 2004-04-19
Abstract
Abstract A baby carriage is equipped with handrails (1), front legs (2), sliders (3), rear legs (4), upper support rods (5), lower support rods (6), seat support rods (7), pull rods (8), and cross connecting members. The sliders (3) are slidable lengthwise of the front legs (2). The rear legs (4) are pivotally connected to the sliders (3). When the folding operation of the baby carriage is started, the handrails (1) are turned around connecting points (24) while the front legs (2) are turned around pivot points (25). With this turning movement, the sliders (3) are pulled by the pull rods (8) to slide upwardly along the front legs (2) while the rear legs (4) are turned around the connecting points (26) of the sliders toward the front legs (2).
Inventors
- 👤 Kenzou Kassai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:29
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/08; B62B2205/00; B62B2205/02; B62B9/00; B62B9/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
270 words
A baby carriage having a right-hand side and a left-hand side normally spaced from each other by a given width from side to side, comprising a pair of handrails, a pair of front legs respectively turnably attached to relatively front portions of said handrails at respective pivot points, each front leg having a front wheel, a pair of sliders respectively attached to said front legs, so that said sliders are slidable in the direction of the length of said front legs, a pair of rear legs respectively turnably attached to said sliders, each rear leg having a rear wheel, a pair of upper support rods respectively turnably attached at their middle portions to relatively rear portions of said handrails, a pair of lower support rods turnably attached at one of their respective ends to respective middle portions of said rear legs and at their other ends to said upper support rods, a pair of seat support rods turnably attached at their front ends to the respective middle portions of said front legs, said seat support rods having rear ends turnably connected to said upper support rods and said lower support rods approximately where said upper and lower support rods are connected to each other, a pair of pull rods positioned forwardly of said pivot points for connecting said sliders on said front legs to said handrails, and cross-connecting means for connecting said right-hand and left-hand sides of the baby carriage to each other, each side including one front leg, one slider, one rear leg, one upper support rod, one lower support rod, one seat support rod, and one pull rod.
Claim 2
Dependent Claim
270 words
A baby carriage having a right-hand side and a left-hand side normally spaced from each other by a given width from side to side, comprising a pair of handrails, a pair of front legs respectively turnably attached to relatively front portions of said handrails at respective pivot points, each front leg having a front wheel, a pair of sliders respectively attached to said front legs, so that said sliders are slidable in the direction of the length of said front legs, a pair of rear legs respectively turnably attached to said sliders, each rear leg having a rear wheel, a pair of upper support rods respectively turnably attached at their middle portions to relatively rear portions of said handrails, a pair of lower support rods turnably attached at one of their respective ends to respective middle portions of said rear legs and at their other ends to said upper support rods, a pair of seat support rods turnably attached at their front ends to the respective middle portions of said front legs, said seat support rods having rear ends turnably connected to said upper support rods and said lower support rods approximately where said upper and lower support rods are connected to each other, a pair of pull rods positioned forwardly of said pivot points for connecting said sliders on said front legs to said handrails, and cross-connecting means for connecting said right-hand and left-hand sides of the baby carriage to each other, each side including one front leg, one slider, one rear leg, one upper support rod, one lower support rod, one seat support rod, and one pull rod.
Claim 3
Dependent Claim
42 words
The baby carriage of claim 1, wherein said cross-connecting means include a front leg connecting member connected between said front legs, a rear leg connecting member connected between said rear legs, and a central connecting member connected between said seat support rods.
Claim 4
Dependent Claim
25 words
The baby carriage of claim 2, wherein said front leg connecting member, said rear leg connecting member, and said central connecting member are not foldable.
Claim 5
Dependent Claim
107 words
The baby carriage of claim 2, wherein said front leg connecting member, said rear leg connecting member, and said central connecting member are foldable at their middles, their folding movement bringing said right-hand and left-hand sides of the baby carriage close to each other, said baby carriage further including link means for connecting said baby carriage sides to said front leg connecting member for permitting folding of said front leg connecting member, and prop rods connected between the rear leg connecting member and the central connecting member for establishing an operative association between the folding movements of said rear leg connecting member and said central connecting member.
Claim 6
Dependent Claim
90 words
The baby carriage of claim 4, wherein said link means include a pair of movable members respectively attached to said front legs for sliding in the direction of the length of said front legs, bars connected between said movable members and said sliders, and a pair of turnably installed arms respectively extending from said front legs, and wherein said front leg connecting members are turnably connected at their opposite ends to said movable members and turnably connected to said arms at pivot points spaced a predetermined distance from each end.
Claim 7
Dependent Claim
23 words
The baby carriage of claim 1, wherein said upper support members extend upwardly beyond said handrails to form a pair of push rods.
Claim 8
Dependent Claim
30 words
The baby carriage of claim 1, further including a pair of push rods respectively turnably attached at their lower ends to the right-hand and left-hand sides of the baby carriage.
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) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |