US3976309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reducible volume structure, particularly suitable for baby carriages
Assignee: Individual
•
Filing: 1975-08-06
•
Granted: 1976-08-24
•
Expires: 1995-08-06
Abstract
Abstract A baby carriage which can be collapsed to allow it to be carried, hooked onto an arm, and which when in open condition has a rigid back giving good support to the spine of the occupant, comprises: a pair of flat rigid members constituting the carriage back fastened to each other by a hinge on one side to allow them to adopt either a stable, roughly co-planar position or a position in which they are side by side; a first pair of arms situated at a point where the sides of the flat members opposite the sides hinged to one another are located, these being connected to the flat members to allow the latter to rotate with respect to the arms; the arms of the first pair being shaped such that their lower extremities sustain the supports for the front wheels of the carriage and their upper extremities, each with a handle, serve for steering or carrying the carriage; a second pair of arms arranged externally at the side of the arms of the first pair and articulated to them to provide with their upper furthermost parts, members with which to support the seat in the carriage, which their lower extremities sustain the carriage rear wheels; a third pair of arms articulated one to the other in their intermediate part, positioned behind the back of the carriage, roughly alongside the pair of flat members constituting the back, and connected "x" fashion to the first and second pair of arms.
Inventors
- 👤 Enea Montanelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/08; B62B2205/00; B62B2205/02; B62B2205/06; B62B2205/26; B62B9/00; B62B9/20; B62B9/206
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
279 words
A reducible volume structure, particularly suitable for baby carriages, essential features of which are that it comprises: a pair of flat rigid members that constitute the back of the baby carriage, these being fastened to each other by means of a hinge on one adjacent side in such a way as to allow them to adopt either a stable, roughly co-planar position or else a position in which they are side by side; a first pair of arms, each arm situated at a point corresponding to where the sides of the flat members opposite the sides hinged to one another are located, these being connected to the said flat members in a way which can allow the latter to rotate with respect to the said arms; the arms of the said first pair being shaped in such a way that their lower extremities sustain the supports for the front wheels of the baby carriage and that their upper extremities, each of which provided with a handle, serve for steering or carrying the baby carriage; a second pair of arms arranged externally at the side of the arms of the first pair and articulated to them so as to provide with their upper furthermost parts, members with which to support a seat in the baby carriage, whilst their lower extremities sustain the supports for the rear wheels of the baby carriage; a third pair of arms articulated one to the other in their intermediate part, these being positioned behind the back of the baby carriage, roughly alongside the pair of flat members constituting the said back, and connected at their ends to the said first and second pair of arms.
Claim 2
Dependent Claim
279 words
A reducible volume structure, particularly suitable for baby carriages, essential features of which are that it comprises: a pair of flat rigid members that constitute the back of the baby carriage, these being fastened to each other by means of a hinge on one adjacent side in such a way as to allow them to adopt either a stable, roughly co-planar position or else a position in which they are side by side; a first pair of arms, each arm situated at a point corresponding to where the sides of the flat members opposite the sides hinged to one another are located, these being connected to the said flat members in a way which can allow the latter to rotate with respect to the said arms; the arms of the said first pair being shaped in such a way that their lower extremities sustain the supports for the front wheels of the baby carriage and that their upper extremities, each of which provided with a handle, serve for steering or carrying the baby carriage; a second pair of arms arranged externally at the side of the arms of the first pair and articulated to them so as to provide with their upper furthermost parts, members with which to support a seat in the baby carriage, whilst their lower extremities sustain the supports for the rear wheels of the baby carriage; a third pair of arms articulated one to the other in their intermediate part, these being positioned behind the back of the baby carriage, roughly alongside the pair of flat members constituting the said back, and connected at their ends to the said first and second pair of arms.
Claim 3
Dependent Claim
95 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 1, wherein the arms attached to the first and second pair have, at the point they are articulated one to the other, opposite flat areas in between which is placed at least one member with which to increase the rabbet area for the said arms; the said member being, furthermore, provided with two diametrically opposed hook-on extensions designed to partially wrap round the arms of the first and second pair in proximity of the point where they are articulated one to the other.
Claim 4
Dependent Claim
117 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 1 wherein the connection of the third pair of arms to the first and second pair of arms is achieved with a device comprising a bracket fixed rigidly to one arm in the said first and second pair of arms, said bracket having a pair of parallel sides, in between the parallel sides of which is supported a cylinder provided with a radial hole designed to accept a fixing means that goes freely into a housing made in one considered extremity of an arm in the said third pair of arms to be connected to the considered arm in the said first and second pair.
Claim 5
Dependent Claim
62 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 3, wherein at a point corresponding to where the arms of the first and second pair are articulated one to the other, there is a member fixed to one of the arms articulated at said point, which partially wraps round the remaining arm in proximity of the said articulation point.
Claim 6
Dependent Claim
158 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 1, wherein at least the supports for the rear wheels of the baby carriage are constituted by a bracket substantially in the form of an upside down "U" placed so that it extends around the lower extremity of a relevant arm in the second pair of arms, and is asymmetrically articulated to it so as to be able to rotate in a limited fashion in both directions, the said bracket having in the extremity of its parallel sides, a pair of coaxial holes for fixing it to a pin on which one of the wheels rotates; between the said rotation pin and the extremity of the considered arm, at an intermediate position in the sides of the said bracket, an elastic member being fitted in order to oppose the free rotation of the said bracket around the point where it is articulated to the said arm.
Claim 7
Dependent Claim
62 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 5, wherein at a point corresponding to where the arms of the first and second pair are articulated one to the other, there is a member fixed to one of the arms articulated at said point, which partially wraps round the remaining arm in proximity of the said articulation point.
Claim 8
Dependent Claim
62 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 1 wherein at a point corresponding to where the arms of the first and second pair are articulated one to the other, there is a member fixed to one of the arms articulated at said point, which partially wraps round the remaining arm in proximity of the said articulation point.
Claim 9
Dependent Claim
96 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 7, wherein the part of the said member that partially wraps round an arm in the first and second pair of arms in the proximity of the said point where one arm is articulated to the other, is substantially of U shape, and that a wall interposed between the said arms has an edge bent in the form of a hook which partially and stably enshrouds the remaining arm of the second and first pair of arms in proximity of the aforementioned articulation point.
Claim 10
Dependent Claim
103 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 1, wherein in a position between the two opposite points where the first and second pair of arms are articulated one to the other and the two front wheels of the baby carriage, there is a fourth pair of arms, both of which are hinged at one end to a common connecting member, with their other extremity also hinged to a corresponding arm in the first pair of arms, the said fourth pair of arms being provided as the support for the feet of the child seated in the baby carriage.
Claim 11
Dependent Claim
53 words
A reducible volume structure, particularly suitable for baby carriages, according to claim 9, wherein the length of the arms in the said fourth pair of arms, as also the conformation of the said intermediate connecting member, are such as to form an angle between themselves coaxially when the carriage is reduced in volume.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |