Abstract: A telescopic rod device includes an outer tube including adjustment holes, an inner tube having a through hole, an actuator unit mounted inside the inner tube and has an actuating portion, and an adjustment control unit having a restraining member that has a restraining portion, a resilient member, and a lug connected with the resilient member and protruding from the through hole to engage with an adjustment hole. The resilient member biases the lug to extend out of the through hole and engage an adjustment hole, and when the actuator unit moves relative to the inner tube, the actuating portion of the actuator unit actuates movement of the restraining portion, and the restraining member acts on the resilient member so that the lug disengages the adjustment hole.

Abstract: A foldable chair includes a support unit, a sliding base, and a seat unit. The support unit includes a pivot base, a main support rod and two auxiliary support rods connected to the pivot base. The sliding base is sleeved on the main support rod. The seat unit includes a seating subunit connected to the sliding base. The seat unit further includes a linkage subunit that includes a first linkage rod connected to the pivot base, a second linkage rod connected to the first linkage rod and the sliding base, and a resilient member between the pivot base and the first linkage rod. The seating subunit is convertible between a folded state and an expanded state. The resilient member biases the end of the first linkage rod distal from the pivot base away from the main support rod.

Abstract: A folding crutch chair includes a pivot base unit, a primary leg unit, at least two support leg units, a positioning unit and a seating unit. The leg units are mounted on the pivot base unit. The positioning unit is mounted on the primary leg unit, and has a mounting seat and a positioning member. The positioning member has a guiding slope surface. A seating member of the seating unit is shiftable between a collapsed position and a seated position. During the operation from the seated position to the collapsed position, the seating member is actuated to move the guiding slope surface to generate a retention force for keeping the seating member unmoved relative to the positioning member so as to facilitate the folding operation.

Abstract: A folding crutch chair includes a pivot base unit and at least three support leg units. The pivot base unit has at least three mounting slots angularly spaced apart from one another about an axial line, and at least three pairs of joint portions respectively formed in the mounting slots. Each support leg unit includes a pivot seat, an outer tubular piece, and an inner tubular piece extending telescopically relative to the outer tubular piece. The pivot seat has a pair of pivot portions respectively and pivotably connected with the joint portions such that each support leg unit is rotatable relative to the pivot base unit. The support leg units are shiftable between a folded state and an unfolded state. The length of the support leg units is reduced when folded so as to facilitate packaging, storage and carrying.

Abstract: A foldable supporting device includes a linkage unit, a supporting unit and a converting unit. The supporting unit includes a main supporting member that has a first main supporting surface, and at least one auxiliary supporting member that has a first auxiliary supporting surface. The converting unit has at least one converting part that is drivable by movement of the linkage unit to convert the supporting unit between a folded state in which the first main supporting surface and the first auxiliary supporting surface cooperatively form a first angle, and an unfolded state in which the first main supporting surface and the first auxiliary supporting surface cooperatively form a second angle.

Abstract: A folding mechanism includes a pivot seat unit and at least three support units disposed about an axial line and pivotally connected to the pivot seat unit. Each of the support units includes a support rod. Rotation of any one of the support rods of the support units relative to the pivot seat unit drives an adjacent one of the support rods to rotate, such that when any one of the support rods is rotated relative to the pivot seat unit, the other support rods are in turn driven to rotate relative to the pivot seat unit so as to convert the support units between a folded state and an unfolded state.

Abstract: A foldable supporting device includes a linkage unit, a supporting unit and a converting unit. The supporting unit includes a main supporting member that has a first main supporting surface, and at least one auxiliary supporting member that has a first auxiliary supporting surface. The converting unit has at least one converting part that is drivable by movement of the linkage unit to convert the supporting unit between a folded state in which the first main supporting surface and the first auxiliary supporting surface cooperatively form a first angle, and an unfolded state in which the first main supporting surface and the first auxiliary supporting surface cooperatively form a second angle.

Abstract: A folding mechanism includes a pivot seat unit and at least three support units disposed about an axial line and pivotally connected to the pivot seat unit. Each of the support units includes a support rod. Rotation of any one of the support rods of the support units relative to the pivot seat unit drives an adjacent one of the support rods to rotate, such that when any one of the support rods is rotated relative to the pivot seat unit, the other support rods are in turn driven to rotate relative to the pivot seat unit so as to convert the support units between a folded state and an unfolded state.

Abstract: A foldable display stand includes a leg unit and two support arm assemblies. The leg unit includes two leg tubes. Each of the support arm assemblies includes a support arm, and is convertible among a storage state where the support arm is substantially retracted into a respective one of the leg tubes, a projecting state where the support arm substantially projects out of the respective leg tube and where the support arm extends along an extending axis of the respective leg tube, and a display state where the support arm extends in a direction transverse to the direction of the extending axis of the respective leg tube.

Abstract: A foldable display stand includes a leg unit and two support arm assemblies. The leg unit includes two leg tubes. Each of the support arm assemblies includes a support arm, and is convertible among a storage state where the support arm is substantially retracted into a respective one of the leg tubes, a projecting state where the support arm substantially projects out of the respective leg tube and where the support arm extends along an extending axis of the respective leg tube, and a display state where the support arm extends in a direction transverse to the direction of the extending axis of the respective leg tube.

Abstract: A rope guiding device includes a base seat, two limiting link assemblies connected to the base seat, and a limiting rope. Each of the limiting link assemblies has a retaining space therein, and a guiding groove in spatial communication with the retaining space. The limiting rope includes two head pieces respectively and movably retained in the retaining spaces of the limiting link assemblies, and a rope body having two opposite end portions that respectively extends through the guiding grooves of the limiting link assemblies and that are respectively connected to the head pieces. Each of the head pieces has a width greater than the width of each of the guiding grooves and the width of the rope body.

Abstract: A foldable chair includes a main stick, a fold unit and a retention unit. The fold unit includes a middle slider member movable along the main stick between lower and upper positions, and a foldable support leg connected to the middle slider members. The retention unit is configured to prevent fold operation of the support leg when the middle slider member is at the lower position, and to permit the fold operation of the support leg when the middle slider member is at the upper position.

Abstract: A rope guiding device includes a base seat, two limiting link assemblies connected to the base seat, and a limiting rope. Each of the limiting link assemblies has a retaining space therein, and a guiding groove in spatial communication with the retaining space. The limiting rope includes two head pieces respectively and movably retained in the retaining spaces of the limiting link assemblies, and a rope body having two opposite end portions that respectively extends through the guiding grooves of the limiting link assemblies and that are respectively connected to the head pieces. Each of the head pieces has a width greater than the width of each of the guiding grooves and the width of the rope body.

Abstract: A foldable chair includes a stick shank, a collar sleeve movable between distal and proximate positions on the stick shank, a carrier sleeved on the stick shank, and a seat unit. The seat unit includes a middle portion pivotally connected to the collar sleeve, and left and right wing portions hinged to the middle portion. When the collar sleeve is displaced from the distal position to the proximate position, the seat unit is convertible from a use state, where middle portion is coplanar with the left and right wing portions, to a collapsed state, where the middle portion is at an included angle with each of the left and right wing portions.

Abstract: A walking stick chair includes a main stick, a seat unit, a support unit, and a linking unit. The seat unit includes an upper slider member connected to the main stick and movable between first and second positions, and a seat member connected to the upper slider member. The support unit is connected to the main stick. The linking unit is connected to the support unit and the seat unit. The walking stick chair is at an unfolded state when the upper slider member is at the second position, and is converted from the unfolded state to a folded state when the upper slider member moves from the second position to the first position.

Abstract: A foldable chair includes a support unit, a fold unit and a seat unit. The support unit includes a main stick having a positioning groove. The fold unit includes a connecting member connected to the main stick and an upper slider assembly movable along the main stick. The seat unit is connected to the upper slider assembly. The upper slider assembly is operable to engage the positioning groove for preventing the fold unit from converting between an unfolded state and a folded state, and to be disengaged from the positioning groove so as to permit the fold unit to convert between the unfolded and folded states.

Abstract: A foldable chair includes a stick shank, a collar sleeve movable between distal and proximate positions on the stick shank, a carrier sleeved on the stick shank, and a seat unit. The seat unit includes a middle portion pivotally connected to the collar sleeve, and left and right wing portions hinged to the middle portion. When the collar sleeve is displaced from the distal position to the proximate position, the seat unit is convertible from a use state, where middle portion is coplanar with the left and right wing portions, to a collapsed state, where the middle portion is at an included angle with each of the left and right wing portions.

Abstract: A foldable chair includes a main stick, a fold unit and a retention unit. The fold unit includes a middle slider member movable along the main stick between lower and upper positions, and a foldable support leg connected to the middle slider members. The retention unit is configured to prevent fold operation of the support leg when the middle slider member is at the lower position, and to permit the fold operation of the support leg when the middle slider member is at the upper position.

Abstract: A foldable chair includes a support unit, a fold unit and a seat unit. The support unit includes a main stick having a positioning groove. The fold unit includes a connecting member connected to the main stick and an upper slider assembly movable along the main stick. The seat unit is connected to the upper slider assembly. The upper slider assembly is operable to engage the positioning groove for preventing the fold unit from converting between an unfolded state and a folded state, and to be disengaged from the positioning groove so as to permit the fold unit to convert between the unfolded and folded states.

Abstract: A chair-convertible walking stick includes a stick shank, a collar sleeve movable between distal and proximate positions on the stick shank, a carrier slidable between upper and lower positions on the stick shank, and a seat unit. The seat unit includes a middle portion pivotally connected to the collar sleeve, and left and right wing portions hinged to the middle portion. When the collar sleeve is displaced from the distal position to the proximate position, the seat unit is convertible from a use state, where middle portion is coplanar with the left and right wing portions, to a collapsed state, where the middle portion is at an included angle with each of the left and right wing portions.