Patent Publication Number: US-9403550-B2

Title: Seat attachment for a stroller

Description:
RELATED APPLICATIONS 
     This U.S. patent application claims priority under 35 U.S.C. §120 to U.S. patent application Ser. No. 14/261,558 filed on Apr. 25, 2014 which claims priority to U.S. patent application Ser. No. 12/361,375 filed on Dec. 4, 2009 which claims priority to U.S. Provisional Patent Application Ser. No. 61/119,920 filed on Dec. 4, 2008 which are all hereby incorporated by reference in their entirety. 
    
    
     TECHNICAL FIELD 
     The invention is directed to a seat attachment for a stroller, single stroller and double strollers. Such a seat attachment may be used to convert a single stroller into a double stroller. More specifically, embodiments of the invention are directed to a seat attachment for a stroller capable of supporting a seat such as, but not limited to, a stroller seat, a baby seat, bassinet, a pram, a car seat, or a baby carrier, for example. Embodiments of the seat attachment are capable of reversibly converting a single stroller into a double stroller. 
     BACKGROUND 
     Parents with multiple young children may have difficulty transporting their children from place to place. Children are slow, easily distracted and, therefore, may lag behind their parents while the parents are trying to complete shopping tasks or get exercise in a limited amount of time. In response, many parents have purchased double strollers allowing the parent or other guardian to push two children simultaneously and thus allow them to more efficiently run errands, take walks, or jog. As such, a double stroller allows the parents or guardians more freedom than they would have with only a single stroller, especially while trying to manage two sleeping children. 
     Though double strollers have certain advantages, double strollers also have disadvantages. Double strollers are substantially larger than single strollers and are, therefore, more difficult to maneuver through doors and down aisles in stores. Typically, the benefits of being able to accommodate two children greatly offset these disadvantages. However, when the parent or guardian has only one child with them, the benefits of the double stroller are not realized but the disadvantages still exist. 
     Therefore, parents often buy two or more strollers to use at different times; a single stroller for times when they only have one child with them and a double stroller for when they need a stroller that will accommodate two children. This often creates its own set of problems. The multiple strollers must be stored and there is seldom room for both a folded double stroller and a folded single stroller in the trunk of a typical car or back of a sport utility vehicle. 
     Stroller manufacturers have attempted to solve this problem by providing a place for a second child to stand on the back of a single stroller or attachments that provide another seat for the second child that hangs under and slightly behind the seat of the single stroller. This provides a second seat for a child but the child is tucked close to the back of the front seat which may be uncomfortable, reduce the capacity of the under seat storage, and prevent the parent from hanging a bag on the handle bars. 
     There exists a need for a single stroller that may be conveniently converted to a double stroller. There is also a need for a conversion kit that converts the single stroller into a full double stroller that is capable of accommodating two children without loss of convenience for the parent or guardian. 
     SUMMARY OF THE INVENTION 
     Strollers are typically single strollers (strollers having one seat for transporting one child) or may also be double strollers (strollers having two seats for transporting two children). Embodiments of the invention are directed to a seat attachment for a stroller comprising a connector portion capable of connecting directly to a stroller frame or to an attachment frame member connected to the stroller frame; and a seat support element capable of supporting a seat. In certain embodiments, the attachment for a stroller comprises an attachment frame member having a first end and a second end. The first end may be capable of connecting the seat attachment to a stroller frame and the second end may be capable of connecting to the seat support element. The seat support element is thus capable of supporting a seat on the stroller. In more specific embodiments, the seat may be supported in either a forward or backward position. 
     Another embodiment comprises a stroller and seat attachment for the stroller, wherein the stroller comprises an attachment frame member connected to the frame of the stroller and the seat attachment for the stroller comprises a connector portion. The attachment frame member and the connector portion comprise components that are capable of being securely connected together. In certain embodiments, the attachment frame member and the connector portion comprise components that are capable of being securely and releasably connected together. In this manner, the seat attachment may be attached to the stroller and a seat, as defined above, may be connected to the seat attachment, thus reversibly converting the single stroller into a double stroller. 
     In a further embodiment, the seat attachment for the stroller further comprises at least one wheel. The wheel may be connected to the seat attachment by a wheel support frame which may be rigidly attached or may be pivotally attached to the seat attachment. The wheel support frame may be connected to any section of the seat attachment, preferably the wheel support frame is pivotally connected to the back portion of the seat attachment in an area adjacent to the connector portion or connected near the middle of the attachment portion. 
     Embodiments of the seat attachment for a stroller may further comprise a folding mechanism. The folding mechanism may comprise a sliding member slidingly connected to the attachment portion and a folding frame member or strut having a first end connected to the sliding member and a second end connected to the wheel support frame. The folding mechanism allows the wheel support frame to pivot from a first position (in-use position), to a second position (a folded position). The attachment for the stroller also may comprise a locking mechanism that secures the attachment to a stroller in the in-use position and unlocks the attachment to allow the attachment to be connected or removed from the stroller when in the folded position. The locking mechanism may be a small protrusion attached to the wheel support frame that engages a corresponding aperture in the stroller or the stroller attachment portion to secure the attachment to the stroller. In the folded position, the protrusion is not engaged in the aperture. 
     A further aspect is directed to a double stroller. The double stroller may comprise a frame, wherein the frame comprises a handle portion, a front wheel support portion, a back wheel support portion, and a folding mechanism. Embodiments of the double stroller comprise a stroller frame comprising wheels, the frame, a first seat and a connector portion connected to the frame. The double stroller may further comprise a seat attachment frame comprising a wheel, a second seat, and a second attachment portion capable of connecting to the connector portion of the stroller frame. The second attachment portion may be releasably connected to the connector portion. Further, the second seat may be releasably connected to the seat attachment frame and is capable of supporting the second seat in either a forward or backward position. 
     A further embodiment of the double stroller comprises a first seat attachment capable of releasably supporting a first child seat and a second seat attachment capable of releasably supporting a second child seat. The seat attachments may comprise two seat connector portions for supporting the seat on both sides. 
     A still further embodiment of the double stroller comprises at least one first seat attachment adjacent to the front wheel support portion and a second seat attachment adjacent to each folding mechanism and/or the handle portion. The first seat attachment may be above at least one front wheel connected to the wheel support portion. 
     A still further embodiment of the stroller comprises a frame, at least one front wheel, at least one rear wheel, a first stroller seat with at least one first attachment portion permanently attached to the frame; and at least one releasably connected second seat attachment portion capable of supporting a second seat in front of the first stroller seat. As in other embodiments, the seat attachment may comprise two seat connectors. Either or both seat attachment portions may be a single part with two seat connectors or two separate pieces each comprising a seat connector. 
     In any of the above embodiments, the stroller, double stroller or attachment may comprise one or more of the following features; a sleeve for removably receiving the attachment portion. The seat attachment portion may comprise a protrusion having a complementary shape to the sleeve for inserting into the sleeve. Further, the second seat may be integral to the seat attachment. 
     Aspects of the stroller, double stroller and attachment are presented in various embodiments, however one skilled in the art will understand various variation and interchangeability of the components of the various embodiments which are intended to be included in the scope of the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
         FIG. 1  shows an embodiment of a single stroller; 
         FIG. 2  shows an embodiment of a seat attachment to convert a single stroller into a double stroller; 
         FIG. 3  shows the combination of the single stroller of  FIG. 1  attached to the seat attachment of  FIG. 2 ; 
         FIG. 4  shows an embodiment of a seat attachment capable of supporting a car seat on an attachment of  FIG. 2 ; 
         FIG. 5  shows a combination of the single stroller of  FIG. 1  attached to an embodiment of the attachment in the form of a tricycle-like riding device; 
         FIG. 6A  shows an accessory attachment for supporting an accessory on a stroller;  FIG. 6B  shows a bag or purse for attaching to the accessory attachment of  FIG. 6A ; 
         FIG. 7  shows an attachment for supporting a seat comprising one wheel; 
         FIGS. 8 and 8A  show an embodiment of a stroller that is capable of being converted from a single stroller to a double stroller comprising an attachment portion that does not comprise a wheel; 
         FIGS. 9A, 9B, 9C, 9D, 9E, and 9F  show various configurations of the embodiments of the stroller shown in  FIG. 8 ; 
         FIG. 10  shows a stroller with left and right attachment frame members for attaching a second seat; and 
         FIG. 11  shows an attachment frame member with a cylindrical post to be received in a slot in a stroller frame. 
     
    
    
     DESCRIPTION 
     The invention relates to an accessory, attachment, or conversion kit (hereinafter “seat attachment”) for a stroller. As discussed above, parents or guardians may find themselves in a situation wherein it is more convenient to transport two children in a stroller, but at the same time find it inconvenient to have both a single stroller and double stroller. Embodiments of the seat attachment solve this problem. In one aspect, an embodiment of the seat attachment for a stroller is capable of converting a single stroller into a double stroller. The seat attachment may support a seat such as, but not limited to, a stroller seat, a baby seat, a bassinet, a pram, a baby carrier, or a car seat, for example. Therefore, the parent or guardian does not require both a single stroller and a double stroller. A stroller configured to receive a seat attachment for converting a single stroller into a double stroller provides convenience to the user. The single stroller may be connected to a double stroller by attaching the seat attachment to the single stroller and then attaching the second seat. As such, an embodiment of the seat attachment for converting a single stroller into a double stroller comprises at least one connector portion capable of connecting to a stroller frame and a seat support element capable of supporting a seat. The seat attachment may optionally comprise at least one wheel for additional support and stability, however, for more convenience, embodiments of the attachment do not include a wheel. In certain embodiments, a wheel may stabilize the double stroller, but in other embodiments of the attachment the wheel may not be desirable or necessary. Additional embodiments of the attachment comprise a cart, wagon, tricycle-like attachment, or other riding toy that may be connected to the stroller, for example. A tricycle-like attachment would allow a child to ride or be pushed in front of the stroller. 
     A side view of an embodiment a single stroller  10  is shown in  FIG. 1 . As a note,  FIG. 1  shows only one side of the single stroller  10 , however, most components include a complementary component on the other side of the single stroller but are not shown in  FIG. 1 . The single stroller  10  comprises a frame  12  that supports seat  13 . The frame  12  may, optionally, include at least one, preferably two, folding mechanism  16  that allows the stroller  10  to be folded to a more convenient size for storing or transporting the stroller  10 . 
     In this embodiment, the seat  13  is shown as a typical stroller seat, however, other types of seats may be used in a single stroller. The seat  13  may be permanently affixed to the frame  12  or releasably connected such that it is capable of being removed and substituted with a different seat. As used herein, “releasably connected” or “releasably attached” means the connection is not a permanent connection and that the connection is capable being of connected and disconnected by the user of the stroller without requiring special tools or special skills. Releasable connections include, but are not limited to, buttons, snaps, friction fittings, interference fits, threaded connections, locking tabs, keyed connections, other fasteners, or the like. On stroller  10  of  FIG. 1 , the frame  12  is supported on a pair of back wheels  14  and a pair of front wheels  15 . In this embodiment, back wheels  14  are fixed and do not swivel or pivot on the frame. The pair of front wheels  15  on the single stroller  10  pivot to make turning the single stroller  10  easier and more convenient. Though, pivoting wheels may be preferred in certain strollers, strollers with fixed non-pivoting wheels are also common. It should be noted that a single stroller does not require pairs of front or rear wheels and either the front pair of wheels  15  or the back pair of wheels  14  may be substituted with a single wheel. Conventionally, many single strollers, including umbrella strollers, jogging strollers, all-terrain strollers, as well as other strollers may only include one front wheel. Embodiments of the seat attachment of the invention may be capable of converting any style of stroller to a double stroller, including strollers with one or two front wheels. 
     The embodiment of the stroller  10  comprises two attachment portions  17 . The connector portions are preferably on the front of the stroller to allow the seat attachment and the seat to be connected to the front of the stroller  10 . The attachment portions  17  allow a seat attachment such as the seat attachment for converting the single stroller  10  to a double stroller, as shown in  FIG. 3 , to be connected to the stroller. Only one seat attachment is shown in  FIG. 3 , the stroller  10  would use two seat attachments as shown in  FIG. 3  or one seat attachment comprising two seat support elements. The embodiment of the stroller  10  has a left side and right side attachment portions  17 . An embodiment of a seat attachment of stroller  10  will comprise corresponding connector portions capable of connecting to the stroller frame at the attachment portions  17 . Though the seat attachment for the stroller is described in relation to a single stroller, the attachment may similarly be attached to a double stroller. Embodiments of the seat attachment may therefore be used to convert a double stroller into a triple stroller, if desired. 
     An embodiment of a seat attachment  20  of the invention is shown in  FIG. 2 . The seat attachment of  FIG. 2  is in an unlocked and folded configuration. The seat attachment  20  comprises a pair of connector portions  21  capable of connecting to the attachment frame members  24 , two seat attachment elements  22  capable of supporting a seat; and a wheel  23 . In this embodiment, the connector portions are connected to the rear of the seat attachment  20  allowing the seat attachment  20  to be connected to the front of a stroller, such as stroller  10  shown in  FIG. 1 . Other embodiments of the seat attachment may include more than one wheel, one connector portion, one seat support element, or combinations of these elements. In an embodiment of the stroller with one wheel, the attachment frame member may be on the forks of the front wheel, for example. 
     The seat attachment  20  comprises a wheel support frame  26  connecting the wheel  23  to the attachment frame member  24  of the attachment  20 . Each attachment frame member  24  has a first and a second end. The first end is capable of connecting to a stroller frame and the second end is connected to the seat support element  22 . The embodiment of the seat attachment  20  comprises a wheel support frame  26  that is pivotally connected to two attachment frame members  24 . The wheel support frame  26  or the attachment frame  24  may span the width of the stroller between the two attachment portions  17 . The pivotal connection  27  allows the seat attachment to be folded and conveniently stored or transported but is not necessary for the invention. The pivotal connection is optional and provides more convenience, however, embodiments of the attachment may comprise a releasably connected wheel support frame or a rigid frame that may be incorporated to produce a seat attachment that has greater strength for use in situations wherein a stronger seat attachment may be desired such as with all-terrain or jogging strollers, for example. The wheel support frame may be connected at any point on the attachment frame, preferably the wheel support frame is connected near the connector portion  21  or near the middle of the attachment frame  24 . 
     An embodiment of the seat attachment without a wheel may include connector portion  21  or attachment frame member  24 , and seat attachment member  22 , for example. In such an embodiment, there would be no need for pivotal connection  27 , wheel support frame  26 , sliding connector  25 , or wheel  23 .  FIG. 1A  shows a top view of an embodiment of an attachment portion and  FIG. 2A  shows a cross-sectional view of an embodiment of a connector portion 
     The seat attachment  20  comprises a folding mechanism comprising a sliding connector  25  connected to a first end of strut  28 . A second end of strut  28  is pivotally connected to wheel support frame  26 . In such an embodiment, the sliding connector  25  may be moved between a first position and a second position on the attachment frame member  24 . As the sliding connector  25  is moved, strut  28  pushes the wheel support frame  26  from an in-use position to a storage position. The storage position is more compact as shown in  FIG. 2 . In addition, the embodiment of the seat attachment  20  comprises a locking mechanism  27  that is capable of securing the seat attachment  20  to a stroller, such as stroller  10  shown in  FIG. 1 . The locking mechanism  29  is engaged by moving the sliding connector  25  to the in-use position in which the wheel support frame  28  and wheel  23  are extended. In an embodiment of the seat attachment  20  for the stroller  10 , the wheel of the seat attachment  20  is pivotally connected to the connector portion and when the wheel is in the in-use position the releasable connection is locked and when the wheel  23  is moved to the storage position, the releasable connection is unlocked allowing the seat attachment  20  to be removed from stroller  10 . The seat attachment  20  may be stored and stroller  10  may be conveniently used as a single stroller. As designed, the seat attachment  20  may be reconnected to stroller  10  for use as a double stroller. In any embodiment of the invention, the seat attachment portion may be secured into position on the stroller frame and a locking mechanism may be used with an embodiment with or without the wheel. Either the seat attachment or the stroller frame may comprise a locking mechanism for securing the stroller and seat attachment together. The locking mechanism may be any mechanism capable of securing the components together during use and may be a friction locking device, threaded connection, peg in a hole, or an interference locking device such as a pin in a hole or, for example. In embodiment  20  shown in  FIG. 2 , the locking mechanism  29  pivots with wheel support frame  26  as the attachment  20  is moved from an unfolded position to a folded position. The locking mechanism  29  may slide into a hole or notch in the attachment frame member of stroller  10  shown in  FIG. 1 . As such, the attachment  20  may be attached to stroller  10  by positioning attachment portion  21  of attachment  20  in slot  18  of attachment portion  17  of stroller  10 . The sliding connector  25  may be moved to the in-use position, wheel support frame is moved and locking mechanism  29  is positioned into locking slot  19  of stroller  10 . 
     The connector portion  21  of the embodiment of the seat attachment  20  has a cylindrical shape. The connector portion  21  may be inserted into a cylindrical slot  18  of the attachment portion  17  of stroller  10  of  FIG. 1  to secure the seat attachment and convert the single stroller into a double stroller, as shown in  FIG. 3 . Other embodiments of the seat attachment may include any type of connector portion. The connector portion may be of a solid or tubular construction and may be any cross-sectional shape including, but not limited to, circular, polygonal, square, rectangular, and triangular, for example. Other attachment mechanisms may be utilized to connect the seat attachment to the stroller such as, but not limited to, a U-shaped bracket, a U-bolt, a pipe clamp, O-shaped bracket, screw, bolt, or other clamping or attachment means. The attachment frame member of the stroller has a complimentary and cooperating shape that allows the connector portion to be secured to the attachment portion of the stroller. 
     In  FIG. 3 , the seat attachment  20  of  FIG. 2  is shown connected to the single stroller  10  of  FIG. 1  forming a double stroller. The double stroller configuration is shown with two stroller seats  13  in an inline configuration, though the other configurations, such as a stroller seat and a bassinet or a pram may also be supported on the double stroller. Further, the seat support element of the seat attachment may be capable of supporting the front stroller seat in either a forward or backward position. 
     The embodiment of the stroller  10  is shown only as an example of one type of stroller, the frame of the stroller may be any of many possible configurations. Embodiments of the accessory of the invention may be configured to be used on any such configuration of a stroller. For example, a different embodiment of the baby stroller may not include two front wheels, may not include a folding mechanism or may only include only one folding mechanism. In addition, the baby stroller may include additional features not included in baby stroller  10 . For example, the stroller may optionally comprise fixed front wheels, an entirely different frame configuration, or a storage basket underneath the seat of the stroller. 
     The seat support member may be any configuration capable of supporting the seat on the seat attachment. Another embodiment of a seat support member for use with a car seat or other baby seat is shown in  FIG. 4 . The embodiment of the seat support member  40  of  FIG. 4  comprises a main support  41 . The main support  41  comprises a cradle for supporting a central portion of the seat. Another portion of the seat may rest against support bar  42 . In this embodiment, support bar  42  may be adjusted to accommodate seats of different shapes and sizes. Support bar  42  may be slid within aperture  43  and locked in place when in the desired position to support a certain seat. The seat is, therefore, supported on two main supports  41  and support bar  42 . The seat may be further secured in the seat attachment member  40  by wrapping belts  44  and  45  around the seat and locking the belts in this position with a buckle or other securing means. 
     Another embodiment of a seat attachment for a stroller is shown in  FIG. 5 . The combination  50  comprises stroller  10  and seat attachment  51 . Seat attachment  51  is a tricycle-like attachment comprising a connector portion  52 , a frame  53  with a seat support element  56 , a seat  57 , and wheel  55 . The tricycle-like attachment may be attached to stroller  10  to allow one child to be pushed in the stroller  10  and one child to ride the seat attachment  51 . The seat attachment may be other shapes also such as cars, trucks, or animal shapes, for example. 
     The embodiment of the stroller  10  of  FIG. 5  comprises an additional accessory attachment portion  58 . The accessory attachment portion  58  attaches to a frame member of stroller  10 . An embodiment of the accessory attachment portion  58  is shown on  FIG. 6A . This embodiment is particularly useful for attaching a bag or purse  64 , as shown in  FIG. 6B , to stroller  10 . 
     When using a stroller, parents or guardians typically carry other items, such as purses, grocery bags, cell phones, diapers, cleaning wipes, or other personal or baby related items. Some strollers have bottom storage baskets for placing such items. However, these storage baskets can be inconvenient to access or some light weight strollers do not include such storage. Therefore, users of the stroller may hang purses or shopping bags on the handle of the stroller. This is convenient in that the bag is easy to access, but the weight of the bag on the handle may cause the stroller to be unbalanced and increase the tendency of the stroller to topple backwards. A heavy bag hung from the handle of a stroller may cause the stroller to tip backwards even with a child in the seat. The problem is worse if the stroller is facing uphill, on uneven terrain, being pushed up a curb, or occupied by a small child. The attachment portion may be attached to the frame of a stroller by any of the clamping or attachment methods described above, for example. Preferably, accessory attachment  58  is attached near the center of gravity of the stroller  10  to avoid creating an unbalanced condition of the stroller. An embodiment of the accessory attachment  58  is shown in  FIG. 6A . Accessory attachment  58  is shown connected to stroller frame  12  of stroller  10  in  FIG. 1  near the folding mechanism. Embodiments of the accessory comprise a first end  61  for connecting to a stroller frame and a second end  62  for releasably connecting to the accessory. The first end  61  comprises an aperture  64  that may be connected to frame  12  of the stroller  10 . In certain embodiments, the aperture  64  is on an angle—such that when the axis of the accessory attachment portion  58  is substantially horizontal. The accessory attachment  58  may, optionally, comprise a rib for securing the accessory to the accessory attachment  58 . The rib as shown in  FIG. 6A  may be replaced with any other locking element or securing means including a friction fitting, a screwed fitting, interference fitting, for example. 
     One example of an accessory for attaching to an accessory attachment  58  is shown in  FIG. 6B . The accessory is a bag or purse  64 . The accessory includes an attachment portion  65  that is capable of being secured to the attachment portion  62  on the accessory attachment  58 . The bag or purse  64  may be secured on stroller  10  by securing attachment portion  65  to attachment portion  62 . The attachment portion  65 , as shown, slides over the cylindrical attachment portion  62  of accessory attachment  58 . Attachment portion  65  may include an interior annular recess that receives rib  63  securing the bag or purse  58  to stroller  10 . The bag or purse  64  is thus secured to the stroller  10  in a center portion of the stroller as viewed from the side. Therefore, the bag or purse  64  is conveniently secured to stroller  10  while not contributing to an unbalanced condition of the stroller  10 . 
     Another embodiment of the seat attachment  70  comprises two seat attachment members  71 , two connector portions  72  and a wheel  73 . The two seat attachment members and the wheel are in triangular relationship. The wheel  73  provides additional stability to a stroller connected to the seat attachment  70  if a heavier child is placed in a seat attached to the seat attachment members. 
     A further embodiment of the stroller  80  is shown in  FIG. 8 . Stroller  80  may be easily converted from a single stroller comprising one seat to a double stroller comprising two seats without addition of another wheel on the attachment. Stroller  80  comprises a frame  81  capable of supporting the stroller seat  86 . In this embodiment, the frame  81  comprises a front wheel support portion  81   a , a back wheel support portion  81   b , and a handle portion  81   c . The frame  81  of the embodiment of the stroller  80  further comprises a folding mechanism  81   d  that connects front wheel support portion  81   a , a back wheel support portion  81   b , and a handle portion  81   c . The folding mechanism  81   d  allows the stroller to be folded in a more compact size for storing or transportation.  FIG. 8A  shows stroller  80  in a folded configuration. 
     Stroller  80  further comprises at least one front wheel  82  (both front wheels  82  of stroller  80  may be seen in  FIG. 8A ), at least one rear wheel  83  (both rear wheels  83  of stroller  80  may be seen in  FIG. 8A ), a stroller seat  86 , and a seat support portion  84  capable of supporting a second seat in front of the stroller seat. The stroller  80  may further comprise a storage basket  87 . Seat support portion may be of any design capable of securely supporting a seat on the stroller. For example, the seat support portion  84  may be similar to seat support portion  20  shown in  FIG. 2  without the wheel  23 , the strut  28 , pivotal connection  27 , and/or the wheel support frame  26 . Preferably, the seat support portion is capable of supporting a seat such that a child in the seat is substantially above the frame of the stroller. This provides easier access to the seat, does not block access to the storage basket, allows more versatile configurations of the seats, allows more variety of seats to be attached to the frame, and allows the parent or other guardian to more easily monitor and see the child in each seat. 
     Stroller  80  comprises a stroller seat  86 . The stroller seat  86  is located adjacent to handle portion. The stroller seat  86  may be fixedly attached or removably attached to frame  81 . In embodiments of the stroller  80  wherein stroller seat  86  is removably attached to frame  81 , the stroller seat  86  may be removed and replaced in a backward facing configuration with a second stroller seat  85  connected with seat attachment  84 , see  FIG. 9A , the second stroller seat be replaced by a infant carrier  93  and the stroller seat facing forward, see  FIG. 9B  or the child carrier  91  may be positioned in the first seat position and the stroller seat  85  in the second seat position, see  FIG. 9C , or the child carrier  91  may be replaced with a pram  92 , see  FIG. 9D . In another configuration of the double stroller, two child carriers  93  may connected to the stroller frame  81 , see  FIG. 9E , or one of the child carriers  93  may be replaced with a pram or bassinet  92  as shown in  FIG. 9F . Embodiments of the stroller  80  may comprise a second seat support element  89  adjacent to the handle portion. A stroller  80  comprising a second seat support element  89  allows the seat to be easily removed and reconfigured to a different orientation or replaced with a different style seat as shown in  FIGS. 9A to 9F . 
     Embodiment of the stroller  80  comprises a first seat support element  84 . The seat support element  84  is connected to the stroller  80  front wheel support frame  81   a . The seat support element  84  is adjacent to the front wheel support portion  81   a  of frame  81 . The seat support element is capable of supporting a second stroller seat  85  in front of the stroller seat  86 . This provides convenience and versatility to a user of stroller  80 . Seat support element may be fixedly attached or removably attached to front wheel support portion  81   a . The front seat  85  may be positioned substantially over the front wheels so the stroller remains stable. Preferably, the seats should be positioned such that the center of gravity of the stroller is between the front and rear wheels. If not an additional wheel may be placed on the attachment as previously described. Seat support element  84  comprises a seat connector  88 . Seat connector  88  may be a multipurpose general connector that allows different seats to be interchanged on the seat support element  84 . Any style seat may be configured to connect to the seat connector, such as but not limited to, a stroller seat, a baby seat, a bassinet, a pram, a baby carrier, or a car seat, for example. 
     An embodiment of the stroller attachment comprises a connector portion, and a seat support element. The connector portion is capable of connecting the seat attachment to the frame. 
     In the embodiment shown in  FIG. 8 , stroller  80  comprises a first stroller seat  86  and a second stroller seat  85 . Stroller seat  86  is shown in the forward facing configuration and second stroller seat  85  is shown in a backward facing configuration. The seat support element  84  is capable of supporting the seat above the front wheel  82  connected to the wheel support portion  81   a . Preferably, the front seat is located substantially over the front wheels and the back seat is located substantially over the rear wheels. 
     Though it can not be seen in the side view of  FIG. 8 , a typical embodiment of the stroller will comprise two seat connector portions. One seat connector portion will support each side of the seat. The connector portion may be one piece or multiple parts. 
       FIGS. 9A through 9F  show various configurations that are possible with the stroller of the invention. These configurations are not to be considered to be all available configurations of the stroller and one skilled in the art would recognize many additional possibilities based upon this specification and set of drawings. From the foregoing it will be appreciated that, although specific embodiments of the invention have been described herein for purposes of illustration, various modifications may be made without deviating from the spirit and scope of the invention. Accordingly, the invention is not limited except as by the appended claims.