Embodiments generally relate to hinge mechanisms. The central cylinder has a rotate channel transverse to the hinge axis. A collar may couple with the central cylinder and may include a pin that protrudes inwardly into the rotate channel. In some embodiments, the central cylinder may include a second rotate channel and the pin may extend through the first and second rotate channels of the central cylinder. In some embodiments, the central cylinder may include a tapered locking channel that extends and tapers in an axial direction from the rotate channel. Optionally, the collar may include an aperture for receiving the pin therethrough. The pin may be repositionable to a plurality of positions relative to the collar about an insertion axis. The pin repositioning may vary an axial position of the collar relative to the central cylinder, a rotational range of motion of the collar about the central cylinder, or both.

This invention pertains to advanced medical walker that provides tremendous safety to the users of the medical walker. The novelty introduced here is the addition of the foldable seat pads and safety legs to the medical walker to protect the user from falling down in an uncontrollable situation or fatigue condition, wherein falling down and its resulting traumatic injuries is a serious concern for the users who are in the low-energy state, or are without the accompany of a caring attendance. This invention addresses this concern. There is a wide variety of operation for this invention; this walker can be used in any private or public place such as private homes, hospitals, nursing homes, medical care centers, and alike.

The convertible furniture unit comprises a hinge member pivotally linking first and second furniture portions to allow the first and second furniture portions to relatively pivot relative to each other to adopt a number of different angular relative positions, and a locking mechanism to releasably lock the first and second furniture portion in a given angular relative position. The first and second furniture portions each comprise a number of slats that are intermeshed with and are slidable between the slats of the other one of the first and second furniture portions. Each slat comprises a hinge portion pivotally attached to the hinge member, an arm extending away from the hinge portion and a free extremity opposite the hinge portion. The first and second furniture portions are capable of adopting at least:•a first position wherein the arms of the slats of the first furniture portion extend away from the hinge member and through the arms of the slats of the second furniture portion; and•a second position in which the arms of the slats of the first furniture portion extend away from hinge and away from the arms of the slats of the second furniture portion without crossing or extending through the arms of the slats of the second furniture portion. The first and second positions of the first and second furniture portions are both operable for use of the furniture unit by a user.

The convertible furniture unit comprises a hinge member pivotally linking first and second furniture portions to allow the first and second furniture portions to relatively pivot relative to each other to adopt a number of different angular relative positions, and a locking mechanism to releasably lock the first and second furniture portion in a given angular relative position. The first and second furniture portions each comprise a number of slats that are intermeshed with and are slidable between the slats of the other one of the first and second furniture portions. Each slat comprises a hinge portion pivotally attached to the hinge member, an arm extending away from the hinge portion and a free extremity opposite the hinge portion. The first and second furniture portions are capable of adopting at least:•a first position wherein the arms of the slats of the first furniture portion extend away from the hinge member and through the arms of the slats of the second furniture portion; and•a second position in which the arms of the slats of the first furniture portion extend away from hinge and away from the arms of the slats of the second furniture portion without crossing or extending through the arms of the slats of the second furniture portion. The first and second positions of the first and second furniture portions are both operable for use of the furniture unit by a user.

The toddler stadium chair is adapted for use with bleacher or stadium seats. The toddler stadium chair is secured to a bleacher or stadium seat using a first plurality of straps. The toddler stadium chair is provisioned with a second plurality of straps that are used to secure the toddler into the toddler stadium chair after it has been secured to the bleacher or stadium seat. The toddler stadium chair comprises a seat, a first plurality of straps, and a second plurality of straps.

A chair including structural members having hinge joints at ends thereof pivotally coupling each of the members to one or more adjoining members. The chair is configured to be arranged in a collapsed configuration wherein all of the members are in the same plane and define a substantially planar shape, and configured to be arranged in an expanded configuration to define a seat, armrests, support legs, and leg braces of the chair. A stool assembly includes at least first and second stools configured to be stackable such that the seats of the stools abut face to face and in combination define a composite base. A system for constructing furniture includes multiple joints each having slots configured to receive and retain structural members and configured to be assembled with the structural members to form a piece of furniture with the multiple joints defining corners of the piece of furniture.

A chair including structural members having hinge joints at ends thereof pivotally coupling each of the members to one or more adjoining members. The chair is configured to be arranged in a collapsed configuration wherein all of the members are in the same plane and define a substantially planar shape, and configured to be arranged in an expanded configuration to define a seat, armrests, support legs, and leg braces of the chair. A stool assembly includes at least first and second stools configured to be stackable such that the seats of the stools abut face to face and in combination define a composite base. A system for constructing furniture includes multiple joints each having slots configured to receive and retain structural members and configured to be assembled with the structural members to form a piece of furniture with the multiple joints defining corners of the piece of furniture.

A combination chair and backpack arrangement. The arrangement includes the folding chair, wherein the folding chair includes a foldable frame, a back support panel, a seat panel, at least one backpack coupler, and at least one harness coupler; the backpack, wherein the backpack comprises at least one pouch, at least one coupler releasably coupleable to the backpack coupler, and at least one harness coupler; and a harness arrangement, wherein the harness arrangement includes a first end coupled to the backpack and a harness coupler selectively coupleable to the at least one harness coupler associated with the backpack and the at least one harness coupler associated with the folding chair; wherein when harness coupler of the harness arrangement is coupled to the at least one harness coupler associated with the backpack, the backpack is carriable independently of the folding chair, and the backpack and the harness arrangement forms a closed loop; and when the harness coupler of the harness arrangement is coupled to the at least one harness coupler associated with the folding chair, the folding chair and the backpack are carriable together.

Embodiments generally relate to hinge mechanisms. Many of the hinge mechanism embodiments may be used in foldable furniture. The foldable furniture may be a foldable seat or table. The hinge mechanism may include a central cylinder with a body defining a hinge axis. The central cylinder may have rotate channel(s) transverse to the hinge axis and locking channels extending axially from the rotate channel(s). Collar(s) may couple with the central cylinder and may include pin(s) that protrude inwardly into the rotate channel(s) and locking channel(s) of the central cylinder. In some embodiments, an intermediate cylinder may be disposed between the central cylinder and the collar(s). The intermediate cylinder may have slots corresponding to the rotate channel(s) of the central cylinder. When pin(s) and locking channel(s) are aligned, the central lock cylinder may move axially to lock the collars in a desired angular position (e.g., a deployed or folded configuration).

Embodiments generally relate to hinge mechanisms. Many of the hinge mechanism embodiments may be used in foldable furniture. The foldable furniture may be a foldable seat or table. The hinge mechanism may include a central cylinder with a body defining a hinge axis. The central cylinder may have rotate channel(s) transverse to the hinge axis and locking channels extending axially from the rotate channel(s). Collar(s) may couple with the central cylinder and may include pin(s) that protrude inwardly into the rotate channel(s) and locking channel(s) of the central cylinder. In some embodiments, an intermediate cylinder may be disposed between the central cylinder and the collar(s). The intermediate cylinder may have slots corresponding to the rotate channel(s) of the central cylinder. When pin(s) and locking channel(s) are aligned, the central lock cylinder may move axially to lock the collars in a desired angular position (e.g., a deployed or folded configuration).