Patent Description:
Highchairs are widely used by parents every day to provide a seat for their child to eat. Typically, highchairs include a rigid seat portion that is supported above the floor with a frame or stand. The seats are typically positioned at a height above the floor, with for example the frame or stand, so that the child can sit at the height of a normal table while eating their food. Sometimes, highchairs include a footrest supported by the stand below the seat portion on which the child can rest their feet when they sit in the seat.

Oftentimes, children can become uncomfortable, fidgety or fussy when sitting and secured in a typical highchair during mealtime, as they are unable to stand up or extend or stretch their bodies. This can interfere with mealtime cooperation or even their ability or willingness to eat. Although some highchairs provide some adjustability for height of the seat or footrest, typical highchairs do not provide much adjustability to accommodate positional preferences of the child.

A sit-to-stand convertible highchair is described herein that is adjustable without tools and convertible between a sitting configuration and a standing configuration, to accommodate positional preferences of a child during mealtime, according to their developmental readiness. In both the sitting and standing configuration, the sit-to-stand convertible highchair is configured to allow the child to sit or stand, respectively, in an upright and secure position to aid in digestion and allow the child to swallow food more efficiently, and to create a more pleasant mealtime experience for both the child and parent. The sit-to-stand convertible highchair includes seat assembly and a weight bearing foot platform that are each independently or commensurately adjustable in a height direction on a stand that supports the seat assembly and the foot platform above a floor.

The present invention relates to a sit-to-stand convertible highchair as defined in claim <NUM>.

According to an embodiment of one or more paragraph(s) of this disclosure, the support surface includes a peripheral seat frame and a central seat portion within the peripheral seat frame. The central seat portion of the support surface is configured to be movable relative to the peripheral seat frame to convert between the sitting configuration, in which the central seat portion of the support surface is in a first position flush with the peripheral seat frame to provide a continuous sitting surface on which the user may sit, and the standing configuration, in which the central seat portion of the support surface is in a second position exposing an aperture defined by the peripheral seat frame through which the user may extend to stand on the foot platform.

According to an embodiment of one or more paragraph(s) of this disclosure, the sit-to-stand convertible highchair further includes a plurality of armrests each arranged on a respective lateral side of the seat assembly, and at least one removable tray configured to extend between and variably engage with the plurality of armrests.

According to an embodiment of one or more paragraph(s) of this disclosure, at least one of the plurality of armrests is movable to variably engage and accommodate the at least one removable tray.

According to an embodiment of one or more paragraph(s) of this disclosure, at least one of the plurality of armrests is vertically pivotable or laterally pivotable.

According to an embodiment of one or more paragraph(s) of this disclosure, the plurality of armrests, support surface and backrest are each supported on a support rod.

According to an embodiment of one or more paragraph(s) of this disclosure, the support rod includes a recessed track in which at least one of the plurality of armrests is configured to slide.

According to an embodiment of one or more paragraph(s) of this disclosure, the removable tray includes a spring-loaded lock configured to variably engage with at least one of the plurality of armrests, and a release lever configured to release the spring-loaded lock to variably disengage with the at least one of the plurality of armrests.

According to an embodiment of one or more paragraph(s) of this disclosure, the central seat portion of the support surface is pivotably attached to the peripheral seat frame and is configured to be pivotable relative to the peripheral seat frame to convert the sit-to-stand convertible highchair between the sitting configuration and the standing configuration.

According to an embodiment of one or more paragraph(s) of this disclosure, in the standing configuration, the central seat portion of the support surface is pivoted upward relative to the peripheral seat frame to form a supplementary backrest for the user as the user extends through the aperture to stand on the foot platform.

According to an embodiment of one or more paragraph(s) of this disclosure, the sit-to-stand convertible highchair further includes a crotch strap secured to the peripheral seat frame at a first end of the crotch strap and at a second end of the crotch strap, the crotch strap extending across the aperture from the first end to the second end.

According to an embodiment of one or more paragraph(s) of this disclosure, the crotch strap is removably secured to the peripheral seat frame at at least one of the first end or the second end.

According to an embodiment of one or more paragraph(s) of this disclosure, the sit-to-stand convertible highchair further includes a cushion on an underside of the central seat portion.

According to an embodiment of one or more paragraph(s) of this disclosure, the at least one removable tray is foldable.

According to an embodiment of one or more paragraph(s) of this disclosure, the frame includes a base and a post. At least one of the seat assembly and the foot platform includes an integrated mating feature configured to variably secure the at least one of the seat assembly and the foot platform to the post.

According to an embodiment of one or more paragraph(s) of this disclosure, the post includes a plurality of notches along a vertical direction thereof, and the integrated mating feature of at least one of the seat assembly and the foot platform includes an adjustment latch configured to releasably engage at least one of the notches.

According to an embodiment of one or more paragraph(s) of this disclosure, the post includes a plurality of geometric recesses along a vertical direction thereof, and the integrated mating feature of at least one of the seat assembly and the foot platform includes a corresponding geometric projection configured to variably engage at least one of the plurality of geometric recesses.

According to an embodiment of one or more paragraph(s) of this disclosure, the integrated mating feature of at least one of the seat assembly and the foot platform includes at least one angled rubber wedge configured to variably engage the post.

According to an embodiment of one or more paragraph(s) of this disclosure, the integrated mating feature of at least one of the seat assembly and the foot platform further includes a compression lock configured to move between an unlocked position, in which the integrated mating feature is able to move relative to the post, and a locked position, in which the integrated mating feature is unable to move relative to the post.

According to an embodiment of one or more paragraph(s) of this disclosure, the seat assembly further includes a harness assembly including at least one crotch harness strap, at least two waist harness straps, and at least two shoulder harness straps. Each of the at least one crotch harness strap, the at least two waist harness straps, and the at least two shoulder harness straps are independently connectable to each other.

According to another aspect which is not part of the claimed invention, a sit-to-stand convertible highchair includes a frame configured to support the sit-to-stand convertible highchair above a floor, a foot platform adjustably mounted on the frame, and a seat assembly adjustably mounted on the frame above the foot platform. The seat assembly includes a backrest and a support surface movable for converting the sit-to-stand convertible highchair between a sitting configuration, in which the support surface is configured to support a user in a sitting position, and a standing configuration, in which the foot platform is configured to support the user in a standing position.

The following description and the annexed drawings set forth in detail certain illustrative embodiments described in this disclosure. These embodiments are indicative, however, of but a few of the various ways in which the principles of this disclosure may be employed. Other objects, advantages and novel features will become apparent from the following detailed description when considered in conjunction with the drawings.

The annexed drawings show various aspects of the disclosure.

Described herein is a sit-to-stand convertible highchair. With reference to <FIG> and <FIG>, the sit-to-stand convertible highchair <NUM> includes a frame <NUM> configured to support the highchair <NUM> above a floor, and foot platform <NUM> adjustably mounted on the frame <NUM>. The highchair <NUM> also includes a seat assembly <NUM> adjustably mounted on the frame <NUM> above the foot platform <NUM>. The frame <NUM> may include a post <NUM> and a base <NUM>. The base <NUM> may provide a stable support for the highchair <NUM> on a floor, and the post <NUM> is configured to extend vertically upward from the base <NUM> at an angle relative to the base <NUM> for supporting the seat assembly <NUM> and the foot platform <NUM> above the floor. The seat assembly <NUM> includes a support surface <NUM> and a backrest <NUM>. The support surface <NUM> is movable for converting the sit-to-stand convertible highchair <NUM> between a sitting configuration (<FIG>), in which the support surface <NUM> is configured to support a user (a child) in a sitting position in the highchair <NUM>, and a standing configuration (<FIG>), in which the foot platform is configured to support the user in a standing position in the highchair <NUM>. For example, the support surface <NUM> may be configured to convert between the sitting configuration (<FIG>), in which the user may sit on the support surface <NUM>, and the standing configuration (<FIG>), in which the user may extend through the support surface <NUM> to stand on the foot platform <NUM>. In both the sitting configuration (<FIG>) and the standing configuration (<FIG>), the foot platform <NUM> is positioned on the frame <NUM> below the seat assembly <NUM> such that it provides a surface to support the user's feet. For example, when the user is sitting in the highchair <NUM> in the sitting configuration (<FIG>), the foot platform <NUM> encourages the user to sit in an upright position. In this manner, the foot platform <NUM> provides a sense of grounding for the user when sitting in the highchair <NUM> in the sitting configuration (<FIG>) or standing in the highchair <NUM> in the standing configuration (<FIG>), which increases stability of the user in the highchair. The foot platform <NUM> may extend at least partially on all sides of the frame <NUM> to provide a wide base for grounding the user. Additionally, the foot platform <NUM> is completely removable from the frame <NUM> so as to convert the highchair <NUM> into a chair, having only the seat assembly <NUM> without the foot platform <NUM>. Both the support surface <NUM> and the foot platform <NUM> are configured to independently support a full weight of the user, whether the user is in the sitting position in the sitting configuration of the highchair <NUM> or in the standing position in the standing configuration of the highchair <NUM>.

The support surface <NUM> may have a peripheral seat frame <NUM> and a central seat portion <NUM> within the peripheral seat frame <NUM>. The central seat portion <NUM> of the support surface <NUM> is configured to be movable relative to the peripheral seat frame <NUM> to convert the support surface <NUM> (and, therefore, the highchair <NUM>) between the sitting configuration (<FIG> ) and the standing configuration (<FIG>). In the sitting configuration (<FIG>), the central seat portion <NUM> of the support surface <NUM> is in a first position flush with the peripheral seat frame <NUM> to provide a continuous sitting surface of the support surface <NUM> on which the user may sit. In the standing configuration (<FIG>), the central seat portion <NUM> of the support surface <NUM> is in a second position exposing an aperture <NUM> defined by the peripheral seat frame <NUM>, through which the user may extend to stand on the foot platform <NUM> beneath the support surface <NUM>.

In one embodiment, depicted in <FIG> and <FIG>, the central seat portion <NUM> of the support surface <NUM> is hingedly secured to the peripheral seat frame <NUM> and may be pivoted at a hinge <NUM> relative to the peripheral seat frame <NUM> to convert between the sitting configuration (<FIG>) and the standing configuration (<FIG>). Specifically, the central seat portion <NUM> may be hingedly secured to a rear of the peripheral seat frame <NUM> near where the backrest <NUM> meets the support surface <NUM>. In the sitting configuration (<FIG>), the central seat portion <NUM> may be pivoted downward toward the aperture <NUM> of the peripheral seat frame <NUM> to form the continuous sitting surface of the support surface <NUM>, and in the standing configuration (<FIG>), the central seat portion <NUM> is pivoted upward away from the aperture <NUM>, toward the backrest <NUM>, to expose the aperture <NUM> through which the user may extend to stand on the foot platform <NUM> beneath the support surface <NUM>. In the standing configuration (<FIG>), when the central seat portion <NUM> is pivoted upward away from the aperture <NUM> and toward the backrest <NUM>, the central seat portion <NUM> forms a supplementary standing backrest <NUM> for supporting the user in the standing configuration (<FIG>). The central seat portion <NUM> may include a cushion <NUM> or padding on an underside of the central seat portion <NUM>, such that when it is pivoted upward in the standing configuration (<FIG>), the supplementary standing backrest <NUM> formed by the central seat portion <NUM> provides a comfortable and cushioned support for the user's back with the cushion <NUM>.

In another embodiment, depicted in <FIG>, the central seat portion <NUM> of the support surface <NUM> may be wholly inserted and removed from the support surface <NUM> for converting between the sitting configuration (<FIG>) and the standing configuration (<FIG>). For example, in the sitting configuration (<FIG>), the central seat portion <NUM> may be inserted into the support surface <NUM> to cover the aperture <NUM> and form the continuous sitting surface of the support surface <NUM>, and in the standing configuration (<FIG>), the central seat portion <NUM> may be removed from the support surface <NUM> to expose the aperture <NUM>. In this embodiment, the central seat portion <NUM> of the support surface <NUM> may be removably attached to the peripheral seat frame <NUM> of the support surface <NUM> at a periphery <NUM> of the aperture <NUM> with, for example, a stepped interface (as depicted), a tongue and groove connection, magnets, posts and recesses, or any other suitable fixing means. In this manner, the central seat portion <NUM> of the support surface <NUM> may be easily removed from the peripheral seat frame <NUM> to expose the aperture <NUM> and convert the support surface <NUM> and highchair <NUM> from the sitting configuration (<FIG>) to the standing configuration (<FIG>).

In this embodiment, with specific reference to <FIG>, a backrest insert <NUM> may be inserted onto or removed from the support surface <NUM> to form the supplementary standing backrest <NUM> for supporting the user in the standing configuration (<FIG>). The backrest insert <NUM> may, for example, be planar or may be curved along a periphery <NUM> of the aperture <NUM> of the support surface <NUM> and may extend vertically from the periphery <NUM> of the aperture <NUM>. The backrest insert <NUM> may be removably attached to the peripheral seat frame <NUM> of the support surface <NUM> at the periphery <NUM> of the aperture <NUM> with, for example, a stepped interface, a tongue and groove connection, magnets, posts and recesses, or any other suitable fixing means. The backrest insert <NUM> may also be attached to the support surface <NUM> in the sitting configuration (<FIG>) for providing additional support to the user when the user is sitting on the support surface <NUM>. The backrest insert <NUM> may also include a cushion or padded fabric on a front face thereof for providing a comfortable and cushioned support for the user's back. Similarly, a sitting cushion insert may be inserted onto or removed from the support surface <NUM> in the sitting configuration for providing additional support and comfort to the user while sitting on the support surface <NUM> in the sitting configuration. The sitting cushion insert may come in a plurality of standard sizes based on various stages of development, or may be custom made for the user's particular stage of development.

In any embodiment, the seat assembly <NUM> may also include a crotch post <NUM> secured to the support surface <NUM>, for example on the peripheral seat frame <NUM>, for providing a barrier in front of the user when the user is sitting or standing in the highchair <NUM>. The crotch post <NUM> may or may not be removable from the support surface <NUM>. The crotch post <NUM> may also provide an anchor for securing a crotch strap <NUM> and a harness assembly <NUM>. Specifically, with reference to <FIG>, the seat assembly <NUM> may include the crotch strap <NUM> secured to the support surface <NUM> at a first end of the crotch strap <NUM> and at a second end of the crotch strap <NUM>. The crotch strap <NUM> is therefore configured to extend across the aperture <NUM> from the first end to the second end such that, when standing in the highchair <NUM>, the user's legs may straddle the crotch strap <NUM>. The seat assembly <NUM> may include a crotch strap holder for holding the crotch strap <NUM> up against the sitting surface <NUM> when not in use (e.g., when the highchair <NUM> is in the sitting configuration). The crotch strap <NUM> may be removably secured to the peripheral seat frame <NUM> at at least one of the first end or the second end of the crotch strap <NUM>. Specifically, one or more ends of the crotch strap <NUM> may be removably attached to, for example, at least a portion of the periphery <NUM> of the aperture <NUM>, the peripheral seat frame <NUM> itself, the backrest insert <NUM>, and/or the crotch post <NUM>. For example, at least one end of the crotch strap <NUM> may include a fixture <NUM> for removably attaching the crotch strap <NUM>. The fixture <NUM> may be, for example, a buckle. The fixture <NUM> may be integrated into the crotch post <NUM>, as depicted in <FIG>, or may be separately secured to the peripheral seat frame <NUM>, as depicted in <FIG>. The crotch strap <NUM> may be wholly removed from the seat assembly <NUM> for, for example, washing or replacing. The crotch strap <NUM> may be made of a soft and flexible material, such as fabric, and may have one or more wings <NUM> extending from the side edges thereof. The wings <NUM> may be provided, for example, for comfort of the user and to prevent chaffing on the user's legs.

With reference to <FIG>, the harness assembly <NUM> includes a plurality of harness straps for securing the user in the seat assembly <NUM> of the highchair <NUM>, and may be a <NUM>-point or a <NUM>-point assembly. For example, the harness assembly <NUM> includes at least one crotch harness strap <NUM>, at least two waist harness straps <NUM>, and at least two shoulder harness straps <NUM> (e.g., a <NUM>-point harness assembly). In another embodiment, the harness assembly <NUM> may only include the at least one crotch harness strap <NUM> and the at least two waist harness straps <NUM> (e.g., a <NUM>-point harness assembly). In the sitting configuration of the highchair <NUM> (<FIG> and <FIG>), the at least one crotch harness strap <NUM> may be securely attached to the sitting surface <NUM> or the crotch post <NUM> at a first end of the at least one crotch harness strap <NUM>. The at least one crotch harness strap <NUM> may be at least partially retractable into the sitting surface <NUM> or the crotch post <NUM> at the first end. In the standing configuration of the highchair <NUM> (<FIG>), the at least one crotch harness strap <NUM> may be securely attached to the crotch strap <NUM> or the sitting surface <NUM>, specifically the peripheral seat frame <NUM>, and may be at least partially retractable therein.

Each of the at least two waist harness straps <NUM> may be securely attached to the backrest <NUM> at a first end of each of the two waist harness straps <NUM>. At least one of the at least two waist harness straps <NUM> may be at least partially retractable into the backrest <NUM>. In the same way, each of the at least two shoulder harness straps <NUM> may be securely attached to the backrest <NUM> at a first end of each of the at least two shoulder harness straps <NUM>. At least one of the at least two shoulder harness straps <NUM> may be at least partially retractable into the backrest <NUM>. For example, one or more retracting mechanisms may be provided for pulling the waist harness strap(s) <NUM> and/or the shoulder harness strap(s) <NUM> into the backrest <NUM>. Each of the at least two shoulder harness straps <NUM>, the at least two waist harness straps <NUM> and the at least one crotch harness strap <NUM> may be removably attached to the backrest <NUM> and the sitting surface <NUM>, the crotch post <NUM>, and the crotch strap <NUM> respectively, for cleaning or replacement, for example.

Each of the at least two shoulder harness straps <NUM> may be independent from each other and may connect to each other at respective second ends thereof (the ends opposite the first ends that are securely attached to the backrest <NUM>), such that they may, together, be removably connected to the at least two waist harness straps <NUM> and the at least one crotch harness strap <NUM> to secure the user in the highchair <NUM>. For example, the at least two shoulder harness straps <NUM> may be connected to each other at their respective second ends with a shoulder strap fastener <NUM>. The at least two shoulder harness straps <NUM>, however, may be independently removably connected to the shoulder strap fastener <NUM>. In the same way, the at least two waist harness straps <NUM> and the at least one crotch harness strap <NUM> may be independent from each other and may connect to each other at respective second ends thereof (the ends opposite the first ends that are securely attached to the backrest <NUM> and the sitting surface <NUM> or the crotch post <NUM>, respectively), such that they may, together, be removably connected to the at least two shoulder harness straps <NUM>. For example, the at least two waist harness straps <NUM> and the at least one crotch harness strap <NUM> may be connected to each other at their respective second ends with a waist strap fastener <NUM>. The at least two waist harness straps <NUM> and the at least one crotch harness strap <NUM>, however, may each be independently removably connected to the waist strap fastener <NUM>. The waist strap fastener <NUM> and the shoulder strap fastener <NUM> may therefore removably connect to each other to secure the user in the highchair <NUM>. That is, when the waist strap fastener <NUM> and the shoulder strap fastener <NUM> are connected, the user is securely retained in the highchair <NUM>. When the waist strap fastener <NUM> and the shoulder strap fastener <NUM> are not connected, the shoulder strap fastener <NUM> and the at least two shoulder straps <NUM> may be moved over the user's head to enable the user to get out of the highchair <NUM>. The crotch harness strap <NUM> may also be removably connected to the sitting surface <NUM> at the first end, as depicted in <FIG>, with a connector <NUM>.

All or part of the harness assembly <NUM> may be removable for cleaning or moving to an alternative position on the highchair <NUM>, for example to accommodate different sizes or heights of the child. For example, adjustment slots may be provided on the backrest <NUM> into which each of the two shoulder harness straps <NUM> may be secured to adjust a position of the two shoulder harness straps <NUM> relative to the user in the seat assembly <NUM>. Additionally, the highchair <NUM> may include a strap storage means, such as slots, slits, magnets, or any other suitable storage means, with which the two shoulder harness straps <NUM> may be secured to keep the two shoulder harness straps <NUM> out of the way when not in use. It is understood that the harness assembly <NUM> described and depicted herein is provided as a non-limiting example and that variations and other suitable harness assembly configurations may be suitable for the harness assembly <NUM> of the highchair <NUM>. For example, a cross-body harness may be used in the highchair <NUM>. Additionally, the harness assembly <NUM> may include one or more pads along any one of the harness straps for increased comfort for the user and/or to address sensory sensitivities of the user.

As depicted in <FIG> and <FIG>, the highchair <NUM> may include a plurality of armrests <NUM> each arranged on a respective lateral side of the seat assembly <NUM>, and at least one removable tray <NUM> configured to extend between and variably engage the plurality of armrests <NUM>. Specifically, the plurality of armrests <NUM> may include two armrests <NUM>, each disposed on one lateral side of the seat assembly <NUM> and configured to support the at least one removable tray <NUM> therebetween. In one embodiment, with reference to <FIG>, each of the plurality of armrests <NUM> may include an armrest groove <NUM> into which a lateral side <NUM> of the at least one removable tray <NUM> slides and fits into. For example, the armrest groove <NUM> and the lateral side <NUM> of the at least one removable tray <NUM> may have complementary shapes configured to support the at least one removable tray <NUM> securely in each of the plurality of armrests <NUM> when the at least one removable tray <NUM> is engaged with each of the plurality of armrests <NUM>. It is understood that the complementary shapes depicted in <FIG> are provided as non-limiting examples and that other complementary shapes may be employed. The at least one removable tray <NUM> may be configured to slide inward and outward along the groove <NUM> such that the at least one removable tray <NUM> may be positioned closer to or further away from the child in the highchair <NUM>, as desired.

In another embodiment, depicted in <FIG>, each of the plurality of armrests <NUM> include a plurality of adjustment holes <NUM> spaced apart along each of the plurality of armrests <NUM>, with which an integrated tray lock <NUM> of the at least one removable tray <NUM> may variably engage when the lateral sides <NUM> of the at least one removable tray <NUM> slide over each of the plurality of armrests <NUM>. As depicted in <FIG>, for example, the integrated tray lock <NUM> may include a spring-loaded release lever <NUM> movable between a tray locked position (<FIG>) and a tray released position (<FIG>) by variably engaging a pull lever <NUM>. As depicted in <FIG>, the pull lever <NUM> is accessible by another user (a caregiver of the child), for example on a bottom surface of the at least one removable tray <NUM> toward a front of the at least one removable tray <NUM> where the user (the child) cannot reach. In the tray locked position (<FIG>) of the spring-loaded release lever <NUM>, a spring <NUM> of the integrated tray lock <NUM> biases the spring-loaded release lever <NUM> into engagement with one of the plurality of adjustment holes <NUM> of at least one of the plurality of armrests <NUM> to securely engage the at least one removable tray <NUM> with the at least one of the plurality of armrests <NUM>. To disengage the at least one removable tray <NUM> with the at least one of the plurality of armrests <NUM>, the spring-loaded release lever <NUM> may be moved to the tray released position (<FIG>) by engaging the pull lever <NUM>. In the tray released position (<FIG>), the force of pulling the pull lever <NUM> causes the spring <NUM> to compress and release the bias on the spring-loaded release lever <NUM>, such that the spring-loaded release lever <NUM> disengages the one of the plurality of adjustment holes <NUM>. In the tray released position (<FIG>), the at least one removable tray <NUM> is free to move toward or away from the user in the highchair <NUM>, based on the number and position of the plurality of adjustment holes <NUM>.

The spring-loaded release lever <NUM> may include a chamfered edge <NUM> where the spring-loaded release lever <NUM> engages each of the plurality of adjustment holes <NUM>. Accordingly, when the at least one removable tray <NUM> is moved toward the user in the highchair <NUM>, each of the plurality of armrests <NUM> may slide along the chamfered edge <NUM> and push the spring-loaded release lever <NUM> toward the tray released position (<FIG>), allowing the at least one removable tray <NUM> to ratchet toward the user without engaging the pull lever <NUM>. However, the at least one removable tray <NUM> is not able to move away from the user without engaging the pull lever <NUM>.

In other embodiments, depicted in <FIG>, each lateral side <NUM> of the at least one removable tray <NUM> may include a tray groove <NUM> into which at least one of the plurality of armrests <NUM> slides and fits into. For example, the tray groove <NUM> and each of the plurality of armrests <NUM> may have complementary shapes configured to support the at least one tray securely around the at least one of the plurality of armrests <NUM> when the at least one removable tray <NUM> is engaged with the at least one of the plurality of armrests <NUM>. It is understood that the complementary shapes depicted in <FIG> are provided as non-limiting examples and that other complementary shapes may be employed. In these embodiments, the at least one removable tray <NUM> may be configured to slide inward and outward along the at least one of the plurality of armrests <NUM> by the at least one of the plurality of armrests <NUM> sliding in an out of the tray groove <NUM>, such that the at least one removable tray <NUM> may be positioned closer to or further away from the child in the highchair <NUM>, as desired.

In the specific embodiment depicted in <FIG>, the at least one of the plurality of armrests <NUM> may include a lock catch <NUM> at a predetermined position on the at least one of the plurality of armrests <NUM> which is configured to variably engage an integrated lock catch recess <NUM> on the lateral side <NUM> of the at least one removable tray <NUM>. Specifically, the lock catch <NUM> is configured to project out of the at least one of the plurality of armrests <NUM>, and the integrated lock catch recess <NUM> is configured to variably engage the lock catch <NUM> to secure the at least one removable tray <NUM> to the at least one of the plurality of armrests <NUM>. For example, the integrated lock catch recess <NUM> may be a slit formed in the lateral side <NUM> of the at least one removable tray <NUM>, with a notch formed in the slit. The slit may be configured to resiliently expand over the lock catch <NUM> until the lock catch <NUM> reaches the notch formed in the slit and becomes captured by the notch. <FIG> depicts the at least one removable tray <NUM> in an unlocked position in which the lock catch <NUM> is not secured by the integrated lock catch recess <NUM>, and <FIG> depicts the at least one removable tray <NUM> in a locked position in which the lock catch <NUM> is secured by the integrated lock catch recess <NUM>.

In the other specific embodiment depicted in <FIG> the at least one of the plurality of armrests <NUM> may include at least one integrated lock catch recess <NUM> at at least one predetermined position on the at least one of the plurality of armrests <NUM> which is configured to variably engage a lock catch <NUM> on the lateral side <NUM> of the at least one removable tray <NUM>. Specifically, the lock catch <NUM> on the lateral side <NUM> of the at least one removable tray <NUM> may be positioned at a distal end of a resilient tab <NUM>, and the integrated lock catch recess <NUM> is configured to variably engage the lock catch <NUM> to secure the at least one removable tray <NUM> to the at least one of the plurality of armrests <NUM>. For example, as the lateral side <NUM> of the at least one removable tray <NUM> moves toward the user in the highchair <NUM> along the at least one of the plurality of armrests <NUM> toward the integrated lock catch recess <NUM>, the lock catch <NUM> is configured to be captured by the integrated lock catch recess <NUM>. To disengage the at least one removable tray <NUM> with the at least one of the plurality of armrests <NUM>, the resilient tab <NUM> may be lifted to disengage the lock catch <NUM> with the integrated lock catch recess <NUM>. <FIG> depicts the at least one removable tray <NUM> in an unlocked position in which the lock catch <NUM> is not secured by the integrated lock catch recess <NUM>, and <FIG> depicts the at least one removable tray <NUM> in a locked position in which the lock catch <NUM> is secured by the integrated lock catch recess <NUM>.

Additionally or alternatively, the at least one removable tray <NUM> may be attached to the plurality of armrests <NUM> with an alternative or additional suitable attachment, such as for example magnets which are strong enough such that the user is unable to remove the at least one removable tray <NUM> when secured to the plurality of armrests <NUM>. It is understood that these attachment means are provided as non-limiting examples, and that other suitable means may be used to attach the at least one removable tray <NUM> to the plurality of armrests <NUM>. Additionally, the at least one removable tray <NUM> may be attached to the plurality of armrests <NUM> in a manner that allows vertical adjustability of the at least one removable tray <NUM> relative to the sitting surface <NUM>. It is also understood that the highchair <NUM> may be used with or without the at least one removable tray <NUM> attached, for example when pushed up to a table.

The at least one removable tray <NUM> may include two removable trays, each being of a different size. For example, a first removable tray may be a larger tray having a first lateral width, and a second removable tray may be a smaller tray having a second lateral width that is less than the first lateral width. Additionally or alternatively, as depicted in <FIG>, the at least one removable tray <NUM> may be foldable such that it is configurable as either the larger tray 58a or the smaller tray 58b. As depicted, the at least one removable tray <NUM> may include a tray hinge <NUM> operable to fold the at least one removable tray <NUM> such that one portion <NUM> of the at least one removable tray <NUM> folds underneath another portion <NUM> of the at least one removable tray <NUM>, converting the at least one removable tray <NUM> from the larger tray 58a (<FIG>) to the smaller tray 58b (<FIG>). Both the larger tray 58a and the smaller tray 58b are attachable to the plurality of armrests <NUM> at respective lateral sides <NUM> thereof, according to any of the above-described embodiments. At least one of the at least one removable tray <NUM> may include a removable tray topper that is configured to be easily removed from the at least one removable tray <NUM> for washing. The removable tray topper may be, for example, dishwasher safe.

The first and second removable tray <NUM> may be interchangeable in the highchair <NUM> and the plurality of armrests <NUM> may be configured to accommodate and support both the first and second removable tray <NUM>. That is, at least one of the plurality of armrests <NUM> are movable to variably engage and accommodate the at least one removable tray <NUM>. For example, at least one of the plurality of armrests <NUM> may be pivotably and/or slidably mounted to the seat assembly <NUM> such that they may pivot, laterally and/or vertically, and/or slide laterally relative to the seat assembly <NUM>. For example, as depicted in <FIG>, at least one of the plurality of armrests <NUM> may be slidably mounted to the seat assembly <NUM> such that the plurality of armrests <NUM> may be moved to accommodate and support various sizes of the at least one removable tray <NUM> (e.g., the larger tray 58a as depicted in <FIG> and the smaller tray 58b as depicted in <FIG>).

At least one of the plurality of armrests <NUM> may be vertically pivotably mounted to the seat assembly <NUM> such that the at least one of the plurality of armrests <NUM> may vertically pivot relative to the seat assembly <NUM>. Specifically, as depicted in <FIG>, at least one of the plurality of armrests <NUM> may be mounted on a support rod <NUM> including a recessed track <NUM> in which the at least one of the plurality of armrests <NUM> is configured to slide to accommodate various sizes of the at least one removable tray <NUM>. That is, the at least one of the plurality of armrests <NUM> may include a support rod connection hole <NUM> for sliding over the support rod <NUM> and a guide tab <NUM> extending therefrom that is configured to engage with the recessed track <NUM> of the support rod <NUM>. The recessed track <NUM> of the support rod <NUM> may extend both laterally, depicted by direction arrow <NUM> in <FIG> (allowing the guide tab <NUM> to slide laterally relative thereto) and/or transversely, depicted by direction arrow <NUM> in <FIG> (allowing the guide tab <NUM> to slide transversely, thereby allowing the at least one of the plurality of armrests <NUM> to vertically pivot relative to the seat assembly <NUM>). The recessed track <NUM> may extend transversely at predetermined positions along the support rod <NUM> to accommodate and support the larger tray 58a and smaller tray 58b, respectively. <FIG> depicts the at least one of the plurality of armrests <NUM> in a pivoted-down position to accommodate the larger tray 58a, and <FIG> depicts the at least one of the plurality of armrests <NUM> in a pivoted-up position such that it is movable in the transverse direction.

With reference to <FIG>, at least one of the plurality of armrests <NUM> may additionally or alternatively be laterally pivotably mounted to the seat assembly <NUM> such that the at least one of the plurality of armrests <NUM> may laterally pivot relative to the seat assembly <NUM>. In this manner, the at least one of the plurality of armrests <NUM> is configured to pivot laterally outward and inward, either with the at least one removable tray <NUM> attached (<FIG>) or with the at least one removable tray <NUM> detached (<FIG>). The variety of movement of the at least one of the plurality of armrests <NUM> allows for greater convenience and ease when moving a user into and out of the highchair <NUM>, as well as for the variable accommodation and support of the at least one removable tray <NUM>.

Turning to <FIG>, each of the plurality of armrests <NUM>, the support surface <NUM> of the seat assembly <NUM>, and the backrest <NUM> of the seat assembly <NUM> may be supported on the support rod <NUM>, such that the entire seat assembly <NUM> including the plurality of armrests <NUM> are movable together along the frame <NUM>. The backrest <NUM> may be pivotably mounted to the support rod <NUM> such that it can recline relative to the support surface <NUM>. Specifically, the backrest <NUM> may include a spring-loaded slide lever <NUM> accessible by the other user (the caregiver of the child) on a back of the backrest <NUM> to variably move a projection <NUM> of the backrest <NUM> into and out of engagement with one of a plurality of slots in the support rod <NUM> for variably reclining the backrest <NUM> relative to the support surface <NUM>. That is, the spring-loaded slide lever <NUM> may be configured to bias the projection <NUM> into engagement with one of the plurality of slots in the support rod <NUM>. When the spring-loaded slide lever <NUM> is pulled, the projection <NUM> is moved out of engagement with the one of the plurality of slots and is free to move to another one of the plurality of slots. For example, a first slot <NUM> may be positioned on the support rod <NUM> to enable the backrest <NUM> to be upright relative to the support surface <NUM> when the projection <NUM> is engaged with the first slot <NUM>, and one or more additional slots <NUM> are positioned on the support rod <NUM> to enable the backrest <NUM> to be in one or more reclined positions relative to the support surface <NUM> when the projection <NUM> is engaged with the one or more additional slots <NUM>. It will be understood that the backrest <NUM> may recline relative to the support surface <NUM> in another manner.

Both the seat assembly <NUM> (including the plurality of armrests <NUM>) and the foot platform <NUM> are independently or commensurately adjustable along the frame <NUM>, specifically along the post <NUM> of the frame <NUM>, in the vertical direction to accommodate different heights and positions of the highchair <NUM>. The post <NUM> may have markers, such as consecutive numbers or letters, along the vertical direction of the post <NUM> for identifying different positions along the post <NUM>. Therefore, for example, a user may establish one or more personalized positions for one or both of the seat assembly <NUM> and the foot platform <NUM> corresponding to respective markers along the post <NUM>, based on the user's size and/or desired height and position of the highchair <NUM> (e.g., when the highchair <NUM> is pushed up to a table, with or without the at least one removable tray <NUM> attached vs. when the highchair <NUM> is freestanding).

At least one of the seat assembly <NUM> and the foot platform <NUM> may include an integrated mating feature <NUM> configured to variably secure the at least one of the seat assembly <NUM> and the foot platform <NUM> to the post <NUM>. The integrated mating feature <NUM> of the seat assembly <NUM> may be, for example, on the support rod <NUM> on which the seat assembly <NUM> is supported. For example, as depicted in <FIG>, the integrated mating feature may be in the form of an adjustment support <NUM> permanently attached to and extending from the support rod <NUM>. With additional reference to <FIG>, the post <NUM> may include a plurality of adjustment support hooks <NUM> disposed along a vertical direction of the post <NUM> for accepting the adjustment support <NUM> and supporting the adjustment support <NUM>, support rod <NUM> and seat assembly <NUM> at various heights along the post <NUM>.

In another embodiment, depicted in <FIG>, the integrated mating feature may include an adjustment latch <NUM> integrated with at least one of the seat assembly <NUM> and foot platform <NUM>. The post <NUM> may include a plurality of notches <NUM> disposed along a vertical direction of the post <NUM> for releasably engaging with the adjustment latch <NUM> and supporting the at least one of the seat assembly <NUM> and the foot platform <NUM> at various heights and positions along the post <NUM>. The adjustment latch <NUM> may be resiliently integrated with the at least one of the seat assembly <NUM> and the foot platform <NUM> such that the adjustment latch <NUM> may be biased toward engagement with one of the plurality of notches <NUM> (<FIG>) and may be pulled and flexed away from engagement with the one of the plurality of notches <NUM> (<FIG>) to enable movement of the at least one of the seat assembly <NUM> and the foot platform <NUM>. The plurality of notches <NUM> may be angled such that when the adjustment latch <NUM> is engaged with one of the plurality of notches <NUM>, the downward force of gravity and of the user on the seat assembly <NUM> and foot platform <NUM> helps secure the adjustment latch <NUM> into the one of the plurality of notches <NUM>.

In another embodiment, depicted in <FIG>, the post <NUM> may include a plurality of geometric recesses <NUM> disposed along the vertical direction of the post <NUM>, and the integrated mating feature <NUM> may include at least one corresponding geometric projection <NUM> configured to variably engage at least one of the plurality of geometric recesses <NUM>. For example, as depicted, the post <NUM> may include the plurality of geometric recesses <NUM> on at least one side of the post <NUM>. The integrated mating feature <NUM> may be configured to slide over and surround the post <NUM> and have the at least one corresponding geometric projection <NUM> opposing the at least one side of the post <NUM> having the plurality of geometric recesses <NUM>. In this manner, the integrated mating feature <NUM> is configured to move freely vertically relative to the post <NUM> when in a first position (<FIG>), in which the at least one corresponding geometric projection <NUM> is disengaged with the at least one of the plurality of geometric recesses <NUM>. When the integrated mating feature <NUM> is tilted to a second position (<FIG>), the at least one corresponding geometric projection <NUM> is configured to engage with the at least one of the plurality of geometric recesses <NUM>. In the second position (<FIG>) of the integrated mating feature <NUM>, the downward force of gravity and of the user on the seat assembly <NUM> and the foot platform <NUM> helps secure the at least one corresponding geometric projection <NUM> in engagement with the at least one of the plurality of geometric recesses <NUM>.

In another embodiment depicted in <FIG>, the integrated mating feature <NUM> may include at least one angled rubber wedge <NUM> configured to oppose the post <NUM>. Specifically, as for the previously described embodiment, the integrated mating feature <NUM> may be configured to slide over and surround the post <NUM>, such that each of the at least one angled rubber wedge <NUM> oppose the post <NUM>. In this manner, when the integrated mating feature <NUM> is tilted upward relative to the post <NUM> in a first position (<FIG>) such that the angled face of the at least one angled rubber wedge <NUM> is parallel to the surface of the post <NUM>, the at least one angled rubber wedge <NUM> is configured to freely move relative to the post <NUM>, allowing the integrated mating feature <NUM> to freely vertically move relative to the post <NUM>. However, when the integrated mating feature <NUM> is tilted downward relative to the post <NUM> in a second position (<FIG>) such that the angled face of the at least one angled rubber wedge <NUM> engages the post <NUM>, the integrated mating feature <NUM> is fixed in place on the post <NUM>. It will be understood that the post <NUM> may include one or more recesses or indentations for receiving the at least one angled rubber wedge <NUM> when the integrated mating feature <NUM> is in the second position. In the second position, the downward force of gravity and of the user on the seat assembly <NUM> and the foot platform <NUM> helps secure the at least one angled rubber wedge <NUM> and the integrated mating feature <NUM> in place relative to the post <NUM>.

It is understood that the above described and depicted embodiments of the integrated mating feature <NUM> are provided as non-limiting examples, and that other mechanisms of variably securing the at least one of the seat assembly <NUM> and the foot platform <NUM> to the post may be employed. For example, the post <NUM> may include projections extending therefrom on one or more sides of the post <NUM> and the integrated mating feature <NUM> may include corresponding hooks configured to engage the projections on the post <NUM>. Additionally, the integrated mating feature <NUM> may variably engage the post <NUM> by any conventional fastening means, such as by bolts or screws.

In any embodiment, the integrated mating feature <NUM> may include a compression lock <NUM> configured to move between an unlocked position, in which the integrated mating feature <NUM> is able to move relative to the post <NUM>, and a locked position, in which the integrated mating feature <NUM> is unable to move relative to the post <NUM>. The compression lock <NUM> may be configured to provide a tactile or audible feedback when switching between the unlocked position and the locked position. For example, with reference to <FIG>, an exemplary compression lock <NUM> is depicted in combination with the embodiment of the integrated mating feature <NUM> depicted in <FIG> involving the at least one angled rubber wedge <NUM>. In this example, the compression lock <NUM> may be configured in another portion of the integrated mating feature <NUM> that slides over and surrounds the post <NUM> such that the compression lock <NUM> opposes and interfaces with a surface of the post <NUM>. Specifically, the compression lock <NUM> may include a rotating knob <NUM> operatively connected to a rubber stop <NUM> that interfaces the surface of the post <NUM> and may be moved into and out of compression with the surface of the post <NUM>. In the unlocked position (<FIG>), the rotating knob <NUM> is in a first position in which the rubber stop <NUM> is not moved into compression with the surface of the post <NUM>, such that the integrated mating feature <NUM> is able to move relative to the post <NUM>. In the locked position (<FIG>), the rotating knob <NUM> is in a second position in which the rubber stop <NUM> is moved into compression with the surface of the post <NUM>, such that the integrated mating feature <NUM> is not able to move relative to the post <NUM>. It will be understood that the post <NUM> may include one or more recesses or indentations for receiving the rubber stop <NUM> when the rotating knob <NUM> is in the second position. In this manner, in addition to the downward force of gravity and of the user, the compression lock <NUM> is configured to help secure the integrated mating feature <NUM> in place relative to the post <NUM>. The integrated mating feature <NUM> and the compression lock <NUM> may have a housing <NUM> configured to surround the components of the integrated mating feature <NUM> and compression lock <NUM> for aesthetic purposes, as depicted in <FIG>.

<FIG> depict the compression lock <NUM> in another embodiment. In this embodiment, the post <NUM> may include a plurality of indentations <NUM> on at least one side of the post <NUM> into which one or more projections <NUM> of the integrated mating feature <NUM> are configured to variably engage by action of the compression lock <NUM>. That is, the compression lock <NUM> includes the rotating knob <NUM> which, when in the unlocked position (<FIG>), moves the one or more projections <NUM> out of engagement with one or more of the plurality of indentations <NUM>, and in the locked position (<FIG>), moves the one or more projections <NUM> into engagement with the one or more of the plurality of indentations <NUM>. The one or more projections <NUM> may be made of rubber or another material.

As pictured in <FIG>, the backrest <NUM> and/or the post <NUM> (including the base <NUM> and/or the post <NUM>) may include a tray storage compartment <NUM> for storing the at least one removable tray <NUM> when not in use (when not supported between the plurality of armrests <NUM>). The tray storage compartment <NUM>, for example, may include a plurality of attachment mechanisms on the back of the backrest <NUM> to which the at least one removable tray <NUM> are configured to attach. The highchair <NUM> may also include other storage compartments for, for example, baby wipes, bibs, small toys, tablets, etc. It is understood that the backrest <NUM> and the post <NUM> are provided as non-limiting examples for where the various storage compartments described herein may be located, and that the tray storage compartment <NUM> and other storage compartments may be located at any other suitable location on the highchair <NUM>.

The frame <NUM> including the base <NUM> and the post <NUM>, the foot platform <NUM> and the seat assembly <NUM> including the backrest <NUM>, support surface <NUM>, plurality of armrests <NUM>, at least one removable tray <NUM> and crotch post <NUM>, may be made from a rigid material, such as non-toxic resin infused paper, wood, bamboo, metal, polymer, and may be dishwasher safe. The non-toxic resin-infused paper, for example, may be made of approximately <NUM>% FSC®-certified or recycled paper content, and <NUM>% phenolic resin. Any two or more of the base <NUM>, the post <NUM>, the support surface <NUM>, the backrest <NUM>, the backrest insert <NUM>, the foot platform <NUM>, and any other component of the highchair may be made of the same material, or may alternatively be made of different materials. Additionally, each component of the highchair <NUM> described herein may be color customizable.

The seat assembly <NUM>, for example one or more of the support surface <NUM>, the backrest <NUM> and the backrest insert <NUM>, may include a removable soft cover <NUM> configured to removably attach to the seat assembly <NUM>. The removable cover <NUM> may be customizable (in color, texture, material, etc.. ), interchangeable and washable. The cover <NUM> may be made of, for example, an antibacterial fabric or have an antibacterial finish and may be machine washable and easy to clean. The cover <NUM> may be made with an organic, sustainable, durable material. The cover <NUM> may be removably attached to the seat assembly <NUM> with magnets. It is understood, however, that magnets are provided as a non-limiting example and that the cover <NUM> may be removably attached to the seat assembly with another suitable attachment means, such as for example a hook and loop fastener, buttons, snaps, clips, ties, etc..

The frame <NUM> may be foldable at a hinge at any point along the frame <NUM>, such that the frame <NUM> may fold for compact storage or transport. Additionally or alternatively, as depicted in <FIG>, the base <NUM> of the frame <NUM> may be configured to fold relative to the post <NUM> for compact storage or transport. Specifically, as depicted, the base <NUM> may be hingedly attached to the post <NUM> at the hinge and may be configured to rotate relative to the post <NUM> to move between an unfolded configuration (<FIG>) and a folded configuration (<FIG>). The frame <NUM> may include a fold lock to lock the frame <NUM> in the unfolded and folded configurations. The frame <NUM> may also include a handle for ease of transporting the highchair <NUM> in the folded position.

The base <NUM> of the frame <NUM> may include wheels or feet on or adjacent the bottom thereof. For example, the wheels may be located on a bottom surface of the base <NUM>, such that they are disposed between the floor and the base <NUM>. In another embodiment, the wheels may be located on a top surface or a side surface of the base <NUM>, such that the base <NUM> directly contacts the floor and the highchair <NUM> is moved with the wheels by tilting the highchair <NUM> at least partially toward its side so that the wheels contact the floor. In any embodiment in which the frame <NUM> includes wheels, the wheels may include a wheel lock to variably lock the wheels. Additionally or alternatively, the bottom of the base <NUM> may include an anti-slip material to keep the frame <NUM> in place on the floor.

The frame <NUM> may include a variety of shapes and sizes. For example, as depicted in <FIG> and additionally in <FIG>, the base <NUM> of the frame <NUM> may include two extending support arms (for example, forming a U-shape, a W-shape or M-shape), extending toward the front or back of the highchair <NUM>, and a single vertically extending post <NUM> for adjustably supporting the seat assembly <NUM> and the foot platform <NUM>. A variety of other non-limiting example frame <NUM> configurations and shapes are depicted in <FIG>. For example, instead of a U-shape, W-shape or M-shape, the base <NUM> of the frame <NUM> may have an X-shape (<FIG>), an O-shape (<FIG>), or any other suitable shape that can support and distribute the weight of the highchair <NUM> and user. The frame <NUM> may also include more than a single vertically extending post <NUM>, as depicted in <FIG>. In some examples, the frame <NUM> does not have a base <NUM>, whatsoever, and instead simply includes a plurality of vertically extending posts <NUM>, as depicted in <FIG>, and <FIG>. For example, the frame <NUM> may include four vertically extending posts <NUM> extending either straight or angled outward relative to the seat assembly <NUM> to support the seat assembly <NUM>. The vertically extending posts <NUM> may or may not include supporting cross arms between at least two of the vertically extending posts <NUM>. The frame <NUM> may otherwise have an A-frame (<FIG>), Z-frame (<FIG>), or Y-frame (<FIG>) shape. It is understood that the above described shapes and configurations of the frame <NUM> are provided as non-limiting examples, and other shapes and configurations of the frame <NUM> may be applicable to the highchair <NUM>. A food net may also be attached to the vertically extending posts <NUM> of the frame <NUM> for catching food dropped from the seat assembly <NUM>.

The highchair <NUM> may be configured with various additional accessories. For example, with reference to <FIG>, the at least one removable tray <NUM> may be configured to have a compatible mat placed on the tray to hold food, drinks, utensils, toys, etc. The mat may be affixed to the at least one removable tray <NUM> with, for example, suction. Otherwise, the mat may simply lie on the at least one removable tray <NUM>. The mat may be, for example, a silicone mat. In an alternative embodiment, the at least one removable tray <NUM>, itself, may be configured with formed recesses to hold food, drinks, utensils, etc. For example, the at least one removable tray <NUM> may have a ridge around a periphery thereof. The at least one removable tray <NUM> may be configured to have a tether attached thereto. For example, as depicted in <FIG>, the at least one removable tray <NUM> may include a loop or notch <NUM> onto which the tether <NUM> may attach. The mat may additionally or alternatively include a loop or notch in the same manner. The tether <NUM> may be used, for example, to hold toys, utensils, or other items on the highchair <NUM> so that they do not fall to the ground. As depicted in <FIG>, one or more of the plurality of armrests <NUM> may include such a loop or notch <NUM> for the tether <NUM>. The tether <NUM> may also attach to the highchair <NUM> (e.g., the at least one removable tray <NUM> and/or the plurality of armrests <NUM>) with, for example, suction, as shown in <FIG>.

The highchair <NUM> may include one or more sensors incorporated therein for alerting a caretaker if the user is not in a proper standing or sitting position in the highchair <NUM>, or if the frame <NUM> is not properly stabilized on the floor. It will be understood that the sensors may be configured to perform other suitable functions on the highchair <NUM>. For example, the sensors may pair with a mobile application on the caretaker's mobile phone. The mobile application and associated website may provide discounts, incentives, safety alerts, subscription access, and access to a community of like-minded users. Additionally, the mobile application may be used to adjust the positions of the seat assembly <NUM> and the foot platform <NUM>. In an embodiment, the highchair <NUM> may include speakers built into any portion of the highchair <NUM> and the mobile application may be configured to wirelessly connect (e.g., via Bluetooth) to the speakers to play music.

Claim 1:
A sit-to-stand convertible highchair (<NUM>), comprising:
a frame (<NUM>) configured to support the sit-to-stand convertible highchair (<NUM>) above a floor;
a foot platform (<NUM>) adjustably mounted on the frame (<NUM>);
a seat assembly (<NUM>) adjustably mounted on the frame (<NUM>) above the foot platform (<NUM>), the seat assembly (<NUM>) including:
a backrest (<NUM>), and
a support surface (<NUM>) configured to convert between a sitting configuration, in which a user sits on the support surface (<NUM>), and a standing configuration, in which the user extends through the support surface (<NUM>) to stand on the foot platform (<NUM>).