The present invention discloses a hook-on chair comprising a seat, a lower clamping arm, a height adjustment mechanism and a height fine-adjustment mechanism. The seat comprises a seat body, which is provided with an upper clamping arm and a vertical support tube. The lower clamping arm is arranged on the vertical support tube and vertically moves along the same. A lower clamping unit is arranged on the front portion of the lower clamping arm and below the upper clamping arm. The height adjustment mechanism comprises an adjustment part arranged in the vertical support tube, and a first locking device used for locking the lower clamping arm on the adjustment part. The height fine-adjustment mechanism is arranged on the lower portion of the vertical support tube, and used for driving the adjustment part to vertically move in the vertical support tube and adjust the height of the lower clamping arm.

A backpack converts into a babychair. The babychair is adapted to attach to a table and to allow a human child to sit in the babychair while facing the table. The babychair converts into a backpack for convenient transport and storage.

A portable multi-functional infant chair and auto adjustment mounting system can be seen as the primary form of the invention. A lightweight adaptable baby chair and support frame having a pair of linked interlocking electro-mechanical adjustment C-clamps. The adjustable C-clamps have self-contained internal electrical activation mechanical clamp plungers for adjustably engaging a stationary support surface securely clamping the baby chair assembly thereto. Confirmation and warning alert system including mobile telemetric network application indicates the clamping and chair position relationship status on the fixed support surface by sensor directed multiple indicators in real time. An internal rechargeable power source is provided to accommodate mobile use parameters. A collapsible independent infant chair stand for independent support of the infant chair and a combination backpack wheel transport for storage of the infant chair and infant chair stand.

A children's dining chair, such as for example a hook-on children's dining chair for hooking onto or otherwise attaching to a table or other support, with an improved structure and better performance. In example embodiments, the present invention further provides a hook-on chair with an enhanced clamping force.

A convertible highchair assembly includes a seat frame, a booster seat detachably installable on the seat frame, a tray detachably mountable on the booster seat and having a plurality of sockets, and a plurality of leg extensions selectively attachable to any of the support frame portion and the tray, each of the leg extensions having a connecting end. The seat frame includes a support frame portion and a seat portion affixed with each other, the seat portion being adapted to receive a child. The connecting ends of the leg extensions are attached to the support frame portion for configuring a highchair, and the connecting ends of the leg extensions are respectively inserted into the sockets while the tray is removed from the booster seat for configuring a standalone table, the leg extensions providing standing support for the tray.

A foldable seat frame for attachment to a table surface for supporting a young child. The frame comprises a pivotally a pair of members coupled in an X-shape. Contact members are provided on adjacent opposing ends of the frame members on a first side of the pivot connection configured for adjacent contact with top and bottom surfaces of the table. Lower contact members positioned adjacent to the bottom surface are movable between a first position generally parallel to the table surface and second position slightly over-center of a generally perpendicular alignment to the table surface. When the lower contact members are in the first position, the seat frame may be easily detached from a table having downardly extending a peripheral skirt structure without requiring large pivoting movement of the frame. When the lower contact members are in the second position, they extend upwardly toward the lower table surface to reduce the degree of frame pivoting movement necessary to clamp the frame to the table. A tension device is connected between adjacent opposing ends of the frame disposed on the opposite side of the pivot connection to draw the opposing ends toward each other which coincidentally draws the contact members closer and thereby enables the table to be clamped therebetween.

The present invention discloses a hook-on chair comprising a seat, a lower clamping arm, a height adjustment mechanism and a height fine-adjustment mechanism. The seat comprises a seat body, which is provided with an upper clamping arm and a vertical support tube. The lower clamping arm is arranged on the vertical support tube and vertically moves along the same. A lower clamping unit is arranged on the front portion of the lower clamping arm and below the upper clamping arm. The height adjustment mechanism comprises an adjustment part arranged in the vertical support tube, and a first locking device used for locking the lower clamping arm on the adjustment part. The height fine-adjustment mechanism is arranged on the lower portion of the vertical support tube, and used for driving the adjustment part to vertically move in the vertical support tube and adjust the height of the lower clamping arm.

A booster seat includes a storage compartment for a tray and/or a storage compartment for securing straps. The tray-storage compartment can be formed in a base of the seat and include an access opening through a sidewall of the base. The tray-storage compartment can include two opposite and inwardly-extending lips that support the tray in the stowed position, and a support foot that moves between a use position in the compartment where it helps support the seat and a stored position displaced from the compartment. Also, the tray-storage compartment can include ribs that engage the tray in the stowed position to retain it there. The strap-storage compartment can be formed in the base and include an access opening with a closure for retaining the straps in the compartment. A base panel can be provided for stability and support.

A booster seat includes a storage compartment for a tray and/or a storage compartment for securing straps. The tray-storage compartment can be formed in a base of the seat and include an access opening through a sidewall of the base. The tray-storage compartment can include two opposite and inwardly-extending lips that support the tray in the stowed position, and a support foot that moves between a use position in the compartment where it helps support the seat and a stored position displaced from the compartment. Also, the tray-storage compartment can include ribs that engage the tray in the stowed position to retain it there. The strap-storage compartment can be formed in the base and include an access opening with a closure for retaining the straps in the compartment.

A baby seat for attaching to a table includes a U-shaped support frame that has two opposing arms, each that is connected with a lower support surface. A flexible seat is adapted for fixing at least partially over the U-shaped support frame and being suspended thereby. The flexible seat includes a U-shaped cover, a seat bottom, and a front cover that has two leg apertures therethrough. A clamping mechanism is fixed with each of the two opposing arms of the U-shaped support frame and includes a lower clamping arm having a top surface adapted for contacting the bottom surface of the table. The clamping mechanism may further include a lever arrangement and an actuator arm that projects rearwardly away from the front cover of the flexible seat. The actuator arm is movable between an open position and a clamped position.