The disclosed invention generally relates to strollers and playpens and more specifically, a stroller that can be converted between a regular stroller, a playpen and being folded.
Strollers and similar devices have been used for baby and child transportation for decades, designed to allow for an easier way to transport children and allow for a more flexible lifestyle. A stroller will usually have a seating component, sometimes allowing for multiple children, generally settled on an arrangement of wheels with a handle to push or pull. A playpen, another device, that allows for children to stand or sit within a, usually, small, enclosed space. This is typically a piece of immobile furniture with side safety bars or latticework, and some playpens are also portable and may be made of plastic, mesh or nylon sides. Some strollers or playpens may be collapsible and allow for transportation or storage in this collapsed state. Some allow for the removal of a seat, or reconfiguration in different orientations with a standalone seat.
U.S. Pat. No. 5,125,674 to Manuszak, entitled “Unitary Infant Care Apparatus,” discloses a unitary infant care apparatus, namely—a playpen, wherein the baby seat is able to be either in a horizontal or a vertical position. The playpen further has the ability to be wheeled or collapsed and carried between locations.
US Publication No. 2003/209,883 to Hsia, entitled “Sports Utility Stroller,” discloses a collapsible baby carriage. The baby carriage consists of a playpen sitting on top of four wheels for transportation. The carriage is collapsible along the base of the carriage.
US Publication No. 2016/0016601 to Velichko, entitled “Convertible Baby Stroller Assembly,” discloses stroller existing as a walled playpen with an option to aperture for the legs of a child on the front wall. The playpen is coupled to a frame including wheels and maintains the ability to collapse. The frame includes a handle which allows the stroller to be selectively moved.
U.S. Pat. No. 9,221,487 to Doucette et al., entitled “Convertible Stroller Seat” discloses a child seat wherein the seat and the seat back are movable at the seat bight to allow for a lying flat and a sitting upright position. The seat can be placed into a baby carriage to allow for mobility.
According to one aspect of the disclosed technique there is thus provided a foldable convertible stroller for children, converting between various stroller, playpen, and folded configurations. The stroller features four U-shaped chassis support bars, the open ends of which bars are supported at, and movable about, joint side-hubs, and which bars are foldably collapsible about the joint side hubs into a nested arrangement when the stroller in the folded configuration. The four U-shaped chassis support bars include an upper front support bar, an upper rear support bar, a lower front support bar, and a lower rear support bar. The convertible stroller further features a base support enclosing a covering material, the support being coupled to the lower front support bar and the lower rear support bar, is optionally hingedly coupled to the lower front support bar and the lower rear support bar and is folded, optionally about an intermediate hinge, when the stroller in a folded configuration.
The upper rear support bar, lower front support bar and lower rear support bar are expandable about the joint side hubs into a fully deployed position, when the convertible stroller is in the stroller configuration or the playpen configuration. When the stroller is in the stroller configuration or the playpen configuration, the upper front support bar is selectively expandable about the joint side hubs into one of two positions: a raised deployed position when fully expanded to render the stroller in a closed concealed stroller configuration or a full playpen configuration; and a lowered position to render the stroller in an open stroller configuration or in a partial playpen configuration.
The stroller further features a circumferential main curtain spanning between the base and the upper front and upper rear support bars for surrounding the stroller in a playpen configuration or the concealed stroller configuration.
In some embodiments the joint side-hubs may feature joint side-hinges.
Optionally, the open ends of the U-shaped bars are hinged at and rotatable about the joint side-hubs, and foldably collapsible there about into a nested arrangement when the stroller in the folded configuration. Accordingly, the upper rear support bar, lower front support bar and lower rear support bar are rotatably expandable about the joint side hubs into a fully deployed position when the stroller is in the stroller configuration or the playpen configuration, and when the stroller is in the stroller configuration or the playpen configuration, the upper front support bar is selectively rotatably expandable about the joint side hubs into a raised deployed position when fully expanded to render the stroller in a concealed-stroller configuration or in a full playpen configuration, and/or a lowered deployed position when partially expanded while neighbouring the base, to render the stroller in an open-stroller configuration or in a partial playpen configuration.
Further optionally, the open ends of the upper rear support bar, lower front support bar, and lower rear support bar, are hinged at and rotatable about the joint side-hubs, and foldably collapsible there about into a nested arrangement when the stroller in the folded configuration, and rotatably expandable there about into a fully deployed position when the stroller is in the stroller configuration or the playpen configuration. However, the upper front support bar is telescopically expandable from the lower rear support bar into a raised deployed position when fully expanded to render the stroller in a playpen configuration, and is telescopically collapsible to the lower rear support bar into a nested arrangement when the stroller is in the folded configuration, or an open-stroller configuration.
The stroller may further include a foldable rest, such as a hammock rest or seat. In a preferred embodiment, the upper rear support bar includes a seat support bridge and the hammock rest has a U-shape seat lifting bar, hinged at its ends rear corners of the base, or to corners of the lower rear support bar. The hammock rest may further include a sheet extending between the seat lifting bar and the seat support bridge, wherein the sheet includes a cavity disposed in the upper section thereof, and the cavity has a seat bottom and a seat back support. The hammock rest is then deployed into a sitting mode when the seat lifting bar is lowered to the base, when the stroller is in the stroller configuration, and is folded when the seat lifting bar is raised to an uppermost position, when the stroller is in the playpen configuration or the folded configuration. The seat lifting bar may include a locking mechanism for locking into a sitting mode when the seat lifting bar is lowered to the base, or into the seat folded mode when the seat lifting bar is raised to an uppermost position. The rest may include an adjustable security harness, a double seat, a collapsible front gripping handle bar, or a removable rest.
Optionally, the upper rear support bar may include a handle portion pivotally hinged about side handle hinges, for allowing selective erection of the upper rear support bar into a handle position, at a selected angle, when the stroller is in the stroller configuration or the playpen configuration, and folding into a compacted position when the stroller is in the folded configuration. The handle portion may be configured as a carrying handle for carrying the stroller in the folded configuration, or as a retractable handle portion for adapting to the height of the user, and may include a safety latch.
The joint hubs may include a locking mechanism configured to hold the support bars in locked position.
The stroller may further include left and right complementary curtains for concealing upper gaps between the upper support bars. The main curtain or the complementary curtains may be removably attachable by a zipper, a set of corresponding fastening strips, a pair of magnets, an interlocking buckle, or a string, and include a material such as translucent, mesh, transparent fabric, netted, or liquid resistant material, feature child gripping or climbing means, or a closable rear access aperture.
In a preferred embodiment, two front wheels may be coupled to the front of the base support or to the lower front support bar, and two rear wheels may be coupled to the base support or the lower rear support bar. The wheels may include a locking mechanism for selectively preventing wheel roll. The front wheels may be spaced apart from the rear wheels when the stroller is in the folded configuration, allowing compact folding thereof.
The stroller may further include a carrycot, a bassinet, a canopy, a base mattress, or a rear bag, all of which can be detachably fastened to the convertible stroller.
According to another aspect of the disclosed technique, there is provided a method for converting a convertible stroller for children between various stroller, playpen and folded configurations. The method includes moving U-shaped chassis lower front, lower rear and upper rear support bars, whose ends are movably connected to joint side-hubs to a fully deployed position when fully expanded about the joint side hubs for rendering the convertible stroller in an unfolded configuration, and thereby unfolding of a base support, preferably about an intermediate hinge, wherein the support is coupled to the lower front support bar and the lower rear support bar. The method further includes setting a U-shaped chassis upper front support bar into one of two positions: a raised position for forming a fully erect playpen configuration or a concealed-stroller configuration, or a lowered position for forming a partial playpen configuration or an open-stroller configuration.
The joint side-hubs may include joint side-hinges.
The procedure of moving may include rotating lower front, lower rear and upper rear U-shaped chassis support bars, whose ends are hinged at, and rotatable about, said joint side-hubs, to a fully deployed position when fully expanded about the joint side hinges for rendering the convertible stroller in an unfolded configuration.
The procedure of setting may include rotating a U-shaped chassis upper front support bar, whose ends are hinged at, and rotatable about, the joint side-hubs, into one of two expanded positions: a raised position for forming a fully erect playpen configuration or a concealed-stroller configuration; and a lowered position for forming an open-stroller configuration.
Next, optionally unfolding of a handle portion hinged to the upper rear support bar. Optionally, a deployable rest may then be deployed with the lowering of a U-shaped seat lifting bar, hinged at the ends of said seat lifting bar for allowing resting of a child when in the stroller configuration. Reversing the above procedures will allow for folding the convertible stroller.
The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawings in which:
The present invention overcomes the disadvantages of the prior art by providing a system and method for a convertible stroller, foldable between several different configurations. In broader aspects, the convertible stroller is composed of a system of U-shaped bars, which are connected by joint side-hubs (or cores), e.g., movably coupled to a pair of side hubs, or hinged to and rotatable about a pair of joint hinges (or hinge units) to allow access between configurations of a stroller (concealed-stroller or open-stroller) to a playpen, as well as a folded configuration. Preferably, the stroller includes a foldable rest, interchangeably termed herein below as a “seat”, “rest”, “hammock” or combination thereof, that may be lowered for seating, extended for laying or crouching, or raised in a storage position among each of the configurations. Generally, the present invention may be used to transport a child, children and/or other items with configurations ranging from a folded configuration to various playpen and stroller configurations.
In accordance with embodiments of the invention, the foldable convertible stroller for children, is converting between various stroller, playpen, and folded configurations. The convertible stroller includes U-shaped chassis support bars which include an upper front support bar, an upper rear support bar, a lower front support bar, and a lower rear support bar. The open ends of the U-shaped bars are connected at and movable about joint side-hubs, and are foldably collapsible about the joint side hubs into a nested arrangement when the stroller is in the folded configuration. A base support is coupled to the lower front support bar and the lower rear support bar, enclosing a covering material and is folded when the stroller is in the folded configuration. The upper rear support bar, lower front support bar and lower rear support bar are expandable about the joint side hubs into a fully deployed position when the stroller is in the stroller configuration or the playpen configuration.
When the stroller is in the stroller configuration or the playpen configuration, the upper front support bar is selectively expandable about the joint side hubs into a raised deployed position when fully expanded to render the stroller in a concealed-stroller configuration or in a full playpen configuration; and/or into a lowered position to render the stroller in an open-stroller configuration or in a partial playpen configuration. A circumferential main curtain spans between the base and the upper front and upper rear support bars and surrounds the stroller in the playpen configuration or the concealed stroller configuration.
Examples of side-hinges which are not joint hinges, and are dispersed over a central side-hub or core, and of connection structures other than hinges, are described hereinbelow with reference to
In accordance with an embodiment of the invention, the open ends of the U-shaped bars are hinged at and rotatable about the joint side-hubs, and are foldably collapsible about the joint side hubs into a nested arrangement when the stroller is in the folded configuration. The upper rear support bar, lower front support bar and lower rear support bar are rotatably expandable about the joint side hubs into a fully deployed position when the stroller is in the stroller configuration or the playpen configuration. When the stroller is in the stroller configuration or the playpen configuration, the upper front support bar is selectively rotatably expandable about the joint side hubs into a raised deployed position when fully expanded to render the stroller in a concealed-stroller configuration or in a full playpen configuration, and/or into a lowered deployed position when partially expanded while neighbouring the base, to render the stroller in an open-stroller configuration or in a partial playpen configuration. The joint side hubs may include joint side hinges.
Reference is now made to
Base support 2 is a support bar, enclosing a covering-material 32. Base support 2 may be folded about an intermediate hinge 34. The material of covering-material 28 may be a strong material, e.g., a taught fabric, a board or a plastic sheet, that is configured to support standing and jumping children or other objects and may incorporate padding or cushioning for safety and increased strengthening. Covering-material 28 may also be removable, allowing for washing and replacing, and a removable mattress or cushion may be placed thereon. With intermediate hinge 30, base support 2 may be folded for a folded configuration, exemplifying means for the folding of base support 2. To increase the safety of convertible stroller 100, intermediate hinge 30 may have an additional locking and unlocking device to keep base support 2 in the desired configuration.
Left and right joint side-hinge units 4, 6 are centrally located on either side of convertible stroller 100 about which each support bar 12, 14, 16, and 18 is able to rotate. Lower front support bar 12 is connected at their open side, respectively, namely—at the ends thereof, to left and right joint side-hinges 4, 6, and when in an unfolded configuration, corners 102, 104 of lower front support bar 12 are orientated toward the front of support base 2. Corners 106, 108 of lower rear support bar 14 are oriented toward corners 118, 120 of base support 2. It will be appreciated that the term “end” as used herein refers to one of two ends of the open side of a U-shaped bar and the term “corner” as used herein refers to any form of the bent or curved closed side of a U-shaped bar. For Example, from the shape of the letter “U,” the ends are designated as the two points at the top and a corner being the bottom part. It is noted, that a curved end may differ in the actual shape and embodied shape, thusly the letter “U” is simply used as a reference and may embody a different shape or configuration. The coupling between support bars may be achieved, for instance, with a screws, washers, and bolts.
Following lower front support bar 12 in a counter-clockwise order is lower rear support bar 14, upper rear support bar 16 and upper front support bar 18. Lower front support bar 12, lower rear support bar 14 and upper rear support bar 16 may each be rotated around left and right joint side-hinges 4, 6 to either a folded configuration or an unfolded configuration. Upper front support bar 18 may be rotated into one of three positions, differentiating an open or enclosed (“concealed”) position of a stroller and playpen configuration as well as a folded configuration. While in the current embodiment, each support bar may rotate around the left and right joint side-hinges 4, 6, there may be an embodiment wherein one support bar remains stationary and the other three rotate in relation to the stationary support bar to form each configuration.
Upper rear support bar 16 contains minor right and left handle side-hinges 22, 24, which allow for selectively erecting a handle portion 26 by allowing handle portion 26 to pivot about hinges 22, 24 with respect to support bar 16 (i.e., swivel in the direction of arrows 10e in
Seat lifting bar 42, an additional U-shape bar, is hinged at either rear corners 118, 120 of base support 2, or corners 106, 108 of lower rear support bar 14. A sheet 44 extends between seat lifting bar 42 and seat support bridge 28. Sheet 44 contains a cavity, hammock rest 46, wherein a child may rest, sit, crouch, recline, lie down etc. The term “hammock” in the context of rest 46 herein, was selected in mere reference to the folding qualities typifying hammock seats, and accordingly, hammock rest 46 is by no means confined to hammock-like shapes or resembling a hammock, e.g., rest 46 may be shaped as a foldable seat, “chair”, or bed. Accordingly, the term “seat” such as in the context of seat lifting bar 42 and seat support bridge 28, is not limited to seat-like rest 46 and refers to any rest. Seat lifting bar 42 may be in two different positions, a lowered, deployed position to allow for seating in the stroller configuration and a folded, raised position to allow for a playpen arrangement. Optionally, the lowered, deployed position of seat lifting bar 42, allows for an extended seat configuration adapted for lying of the child thereon.
A circumferential main curtain 52 spans between base support 2 and upper front support bar 16 and upper rear support bar 18. Main curtain 52 covers convertible stroller 100, both protecting the inside from external elements and confining anything within convertible stroller 100, thereby creating a safe playpen space for a child, as well as a “concealed” barrier in a concealed stroller configuration.
A pair of front wheels 54 and a pair of rear wheels 56 are located below base support 2. Front wheels 54 may connect to the front of base support 2 or to lower front support bar 12. Similarly, rear wheels 56 may connect to the rear section of base support 2 or to lower rear support bar 14. Each wheel may turn independently, coupled to at least one other wheel or not turn at all. Front and rear wheels 54, 56 may be embodied by traditional cylindrical wheels or ball casters. As depicted in
Reference is now made to
In reference to
Optional child climbing and gripping means may be disposed on main curtain 52. As exemplified in
Regardless of the configuration, or if there is a child present, convertible stroller 100 may have additional space on base support 2 for allowing convenient transportation of other items. There may be an additional embodiment that allows for rear access or below a deployed hammock rest 46. This access may be selectively opened with a securable agent such as zipper or fastening strip. As mentioned, even without a rear access embodiment, convertible stroller 100 may still be used in a similar capacity to a shopping cart commonly used at a supermarket.
Reference is now made to
As noted by
The nomenclature for convertible stroller 100 has been derived in relation to a combination of the position of seat lifting bar 42 and the position of upper support bar 18. When, for example, seat lifting bar 42 is at a lower position, a deployed hammock rest 46 is available, defining a stroller configuration, and a raised seat lifting bar 42, collapsing hammock rest 46, defines a playpen configuration. The nomenclature used continues from the amount of access provided. Such as, the relative raised or lowered position of upper front support bar 18 allowing for an open, full access configuration or an enclosed, limiting access configuration. This nomenclature used is purely used as an example for consistency of this description and naming for different configurations may vary in different embodiments.
In reference to
Reference is now made to
Next, in procedure 904, a base support is unfolded, preferably about an intermediate hinge. In reference to
Further, in procedure 906, a U-shaped chassis upper front support bar is moved or rotated into one of two expanded positions: raised position—for forming a fully erected playpen configuration or a concealed-stroller configuration, and lowered position—for forming an open-stroller configuration (which in some cases can also serve for a partial playpen configuration). In reference to
In procedure 910, which is an optional procedure, a rest, such as a hammock seat, is deployed when the convertible stroller is in a stroller configuration. Preferably a U-shaped seat lifting bar, hinged at the ends of the seat lifting bar is lowered for allowing sitting of the child in the rest in a stroller configuration. In reference to
In procedure 912, procedures 910 to 902 are reversed for folding the convertible stroller.
Reference is now made to
As a common problem may be the limited ability to move convertible stroller 100, an embodiment may exist wherein some of all of the movement of convertible stroller 100 is motorized by an onboard, drive and control unit, which may be controlled by an onboard interface or via wireless or mobile communication interface. In addition, a global positioning system (GPS) tracker may be embedded to allow for the locating of convertible stroller 100 by the owner.
Reference is now made to
In reference to
Reference is now made to
Reference is now made to
Reference is now made to Figures to
According to another embodiment of the invention, the open ends of the upper rear support bar, the lower front support bar, and the lower rear support bar, are hinged at and rotatable about the joint side-hubs, and foldably collapsible about the joint side hubs into a nested arrangement when the stroller in the folded configuration, and are rotatably expandable about the joint side hubs into a fully deployed position when the stroller is in the stroller configuration or the playpen configuration. The upper front support bar is telescopically expandable from the lower rear support bar into a raised deployed position when fully expanded to render the stroller in a playpen configuration, and is telescopically collapsible with the lower rear support bar into a nested arrangement when the stroller is in the folded configuration, or an open-stroller configuration.
Reference is now made to Figures to
Convertible stroller 400 is similar to strollers 100, 200, and 300, which are modified by featuring a telescopically collapsible upper front support bar which is linearly extendable from the lower rear support bar. Convertible stroller 400 includes a base support 402 which is similar to supports 2, 202, and 302, and four U-shape chassis support bars: lower front support bar 412, lower rear support bar 414, upper rear support bar 416, and upper front support bar 418. Bars 412, 414, and 416 are radially oriented around and hinged at a pair of central left and right joint side-hinge units 404 and 406, respectively, and analogously function as corresponding bars 12/212/312, 14/214/314, 16/216/316 and corresponding hinges 4/204/304 and 6/206/306 of strollers 100/200/300. Accordingly, the open ends of upper rear support bar 416, lower front support bar 412, and lower rear support bar 414, are hinged at and rotatable about the joint side-hinges 404 and 406, and foldably collapsible about joint side hinges 404 and 406 into a nested arrangement when stroller 40 is in the folded configuration, and are rotatably expandable about joint side hubs 409, 411 (cores containing hinges 404, 406) into a fully deployed position when stroller 400 is in the stroller configuration (
Upper front U-shaped bar 418 is telescopically nested between the side arms of lower rear support bar 416, with its open side inverted respective to the open side of bar 414, and is collapsible by virtue of being retractably extendable from bar 416. The term “telescopic” refers to the disposition of bar 418 within bar 414, with its side arms adjacently braced by parallel arms of bar 414, the linear sliding outward or inward with its side arms maintained in parallel to the bracing side arms of bar 414, and any coupling means such as guiding slits or rails may be applied. In a somewhat modified embodiments bar 418 may be the outer bracing element wherein inverted U-shaped bar 414 is nested within bar 418, to thereby analogously feature a telescopic arrangement. The side arms of bar 418 emerge through paths crossing hinges 404 and 406 (or side cores or hubs 409, 411 in which hinges 404 and 406 are disposed), rendering side hubs 409 and 41 into elements to which all the four bars 412, 414, 416, and 418 are connected, and about which are movable to assume their retracted or expanded positions. Accordingly, upper front support bar 418 is telescopically expandable from lower rear support bar 414 into a raised deployed position when fully expanded to render the playpen configuration (
It is noted that
If a partial playpen configuration is desired, bar 418 may be modified for example by allowing its pivoting about hinges 419 disposed further down along the arms of bar 414, in proximity to deployed base 402, and thus tilting to stand by the rear wall of the curtain near the folded seat 446 or to lay on base 402. Such an arrangement may be provided for example by pivotal rails 421 which are detachably mounted to the side arms of bar 414, and which guide the side arms of bar 418. Rails 421 are hinged at hinges 419 to the side arms of bar 414 proximate to base 402 (when deployed) and are detachably affixed (e.g., by a suitable locking mechanism) to the side arms of bar 414 for limiting bar 418 to a linear movement contiguous to the arms of bar 414 when stroller 400 is in a folded configuration, stroller configuration, and full playpen configuration, wherein the pivoting is reserved for the partial playpen configuration.
Accordingly, bar 418 can be selectively moved into: (1) a fully expanded, raise deployed position, to render stroller 400 in a concealed-stroller configuration or in a full playpen configuration, as is shown in
According to another modified embodiment (not shown) of a stroller such as stroller 100, the open ends of an upper front support bar (e.g., 18), a lower front support bar (e.g., 12), and lower rear support bar (e.g., 14), are hinged at and rotatable about the joint side-hubs (e.g., hinges 4 and 6), and foldably collapsible about the joint side hubs into a nested arrangement when the stroller is in the folded configuration, and rotatably expandable about the joint side hubs into a fully deployed position when the stroller is in the stroller configuration or the playpen configuration. The modification is featured with an upper rear support bar which is telescopically expandable from the lower front support bar into a raised deployed position when fully expanded to render the stroller in a stroller configuration or in a playpen configuration, and is telescopically collapsible to the lower front support bar into a nested arrangement when the stroller is in the folded configuration.
According to a further modified embodiment (not shown) of a stroller such as stroller 100, the open ends of the lower front support bar and the lower rear support bar, are hinged at and rotatable about the joint side-hubs, and foldably collapsible about the joint side hubs into a nested arrangement when the stroller in the folded configuration, and are rotatably expandable about the joint side hubs into a fully deployed position when the stroller is in the stroller configuration or the playpen configuration. The modification is featured with an upper front support bar which is telescopically expandable from the lower rear support bar into a raised deployed position when fully expanded to render the stroller in a concealed-stroller configuration or in a full playpen configuration, and is telescopically collapsible to the lower rear support bar into a nested arrangement when the stroller in the folded configuration, an open-stroller configuration, or in a partial playpen configuration. An upper rear support bar is telescopically expandable from the lower front support bar into a raised deployed position when fully expanded to render the stroller in the stroller configuration or in the playpen configuration, and is telescopically collapsible to the lower front support bar into a nested arrangement when the stroller in the folded configuration.
While certain embodiments of the disclosed subject matter have been described, so as to enable one of skill in the art to practice the present invention, the preceding description is intended to be exemplary only. It should not be used to limit the scope of the disclosed subject matter, which should be determined by reference to the following claims.
Number | Date | Country | Kind |
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24465 | Mar 2016 | IL | national |
Number | Date | Country | |
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Parent | PCT/IL2017/050273 | Mar 2017 | US |
Child | 16124504 | US |