Abstract: A hinge is connectable with two housing shells for permitting relative folding and unfolding of the housing shells, and includes a fixed seat, at least two rotating units, two lateral support plates and at least one synchronous driving unit. The rotating units are shiftable between an open state and a closed state. Each rotating unit includes a linking member fittingly and arcuately slidable on the fixed seat, a sliding member fittingly and arcuately slidable on the linking member, and a rotary bracket pivotably mounted on the fixed seat and inclinedly slidable on the sliding member. The lateral support plates are respectively mounted on the linking members. The synchronous driving unit includes two inboard pinions and two outboard pinions arranged laterally to mesh with bracket toothed portions of the rotary brackets to make synchronous rotation of the rotary brackets in opposite rotational directions.

Abstract: A hinge synchronization module includes a base unit, and two hinge units. The two hinge units are connected to the base unit, and each of the hinge units has a gear member, a rotating platform, and a connecting member. The gear members of the hinge units mesh with each other. The rotating platform of each hinge unit has a platform body pivotable relative to the base unit. The connecting member of each hinge unit has a gear part mashing with the gear member of the hinge unit, and a slide hole. A slidable rod of the rotating platform of each hinge unit is disposed in and slidable along the slide hole of the connecting member of the hinge unit.

Abstract: A hinge is connectable with two housing shells for permitting relative folding and unfolding of the housing shells, and includes a fixed seat, at least two rotating units, two lateral support plates and at least one synchronous driving unit. The rotating units are shiftable between an open state and a closed state. Each rotating unit includes a linking member fittingly and arcuately slidable on the fixed seat, a sliding member fittingly and arcuately slidable on the linking member, and a rotary bracket pivotably mounted on the fixed seat and inclinedly slidable on the sliding member. The lateral support plates are respectively mounted on the linking members. The synchronous driving unit includes two inboard pinions and two outboard pinions arranged laterally to mesh with bracket toothed portions of the rotary brackets to make synchronous rotation of the rotary brackets in opposite rotational directions.

Abstract: A hinge is connectable with two housing shells for permitting relative opening and closing of the housing shells, and includes a fixed seat, at least two rotating units, two lateral support plates and a center support plate. The rotating units are disposed at two sides of a centerline of the fixed seat and are connectable with the housing shells. The rotating units are shiftable between an open state and a closed state. Each rotating unit includes a linking member arcuately slidable on the fixed seat. The lateral support plates are mounted on the linking members, and have central notches. The center support plate is movably disposed on the fixed seat and is moved with the rotating units. In the open state, the center support plate is disposed in the central notches. In the closed state, the center support plate abuts against the fixed seat.

Abstract: A hinge includes a stationary seat and two rotating units. Each rotating unit includes a linkage module that has an extension body that has a arcuate slide rail, a rotating bracket module that is rotatable and that has a fixing pin, and a sliding module that includes a connecting frame, a positioning pin, and a linkage member. The connecting frame has a curved groove that engages the arcuate slide rail such that movement of the rotating units between an opened and a closed state results in movement between the arcuate slide rail and the curved groove. The linkage member has a through hole, and an elongated slot which the fixing pin passes through to connect the rotating bracket module such that movement of the rotating units between the opened and closed states results in movement between the fixing pin and the elongated slot.

Abstract: A lever-operated latch device includes an assembly of a case body, an actuation body mounted on the case body, a linking member and a slide body. The actuation body has a free end and a pivoted end pivotally connected with the case body in cooperation with elastic members. The free end of the actuation body is formed with two protruding arms and an opening section positioned between the protruding arms. An operation section is disposed in the opening section. The linking member has a first end pivotally connected with the free end of the actuation body (or the operation section) and a second end connected with the slide body. When an operator presses the operation section, the actuation body is permitted to move from a closed position to an opened position so as to drive the linking member and the slide body to move.

Abstract: A hinge includes two guide frames spaced apart from each other in a front-rear direction, a transmitting assembly interposed between the guide frames, a frictional torque generating assembly having two opposite thrust plates, and two rotary brackets disposed opposite to each other. Each rotary bracket includes an arcuate pivot portion pivotably connected with the respective guide frame, an actuating portion coupled with the transmitting assembly to actuate the transmitting assembly, and a frictional surface in frictional contact with the respective thrust plate to bring synchronous rotations of the arcuate pivot portion, the actuating portion and the frictional surface, and to make synchronous and opposite rotations of the rotary brackets.

Abstract: A balance pad includes a base. A plurality of first pillars and a peripheral wall are uprightly disposed on the base. The peripheral wall surrounds the first pillars so that the first pillars are located within the peripheral wall. Thereby, the first pillars reduce the stability of the balance pad to increase the difficulty of doing balance exercise. The peripheral wall surrounds the first pillars, so that the first pillars can abut against the peripheral wall to avoid excessive inclination of the first pillars to cause injury to a user.

Abstract: A foam stick includes a tube body, a core, and two covers. The tube body has an accommodating groove with two open ends. The core is disposed in the accommodating groove of the tube body. The two covers are disposed at both ends of the tube body to close the accommodating groove. The foam stick is composed of the tube body, the core and the covers, so the material utilization rate is high. Through the combination of the tube body, the core and the covers, the foam stick has different characteristics and can be used as rollers or floats.

Abstract: A foldable display device includes a hinge, a housing shell unit and a display unit. The housing shell unit includes two housing shells connected with left and right sides of the hinge, two support plates respectively disposed on the housing shells, and a plurality of pairs of display rails defined between the housing shells and the support plates. Each housing shell has a base shell wall connected with the hinge. Each display rail has a rail groove. The display unit is securely disposed to the hinge, and is movably engaged in the rail grooves. The hinge is rotatable between an unfolded position and an outfolding position. During rotation of the hinge, the display unit is moved along the rail grooves.

Abstract: A hinge synchronization module includes a base unit, and two hinge units. The two hinge units are connected to the base unit, and each of the hinge units has a gear member, a rotating platform, and a connecting member. The gear members of the hinge units mesh with each other. The rotating platform of each hinge unit has a platform body pivotable relative to the base unit. The connecting member of each hinge unit has a gear part mashing with the gear member of the hinge unit, and a slide hole. A slidable rod of the rotating platform of each hinge unit is disposed in and slidable along the slide hole of the connecting member of the hinge unit.

Abstract: A uniform distribution support structure of rotary shaft link assembly includes a rotary shaft assembly and a support assembly. The rotary shaft assembly has multiple connection members. Each connection member is formed with a hollow section and a perforation. A guide face is disposed in each hollow section. A spacer shaft rod is disposed between each two adjacent connection members. Each spacer shaft rod is formed with a through hole. A guide arched face is disposed in each through hole. The support assembly has a support member and a lateral support member passing through the through holes and the hollow sections. Multiple opposite guide arched faces are disposed on the support member. Multiple opposite guide faces are disposed on the lateral support member. The guide faces and the guide arched faces respectively abut against the opposite guide faces and the opposite guide arched faces.

Abstract: A hinge includes two rotatable axle units each having two hinge shafts, two synchronizing units each disposed to make synchronous rotations of the hinge shafts, two movable bracket units each having a turnable base plate, two rotary blocks non-rotatably sleeved on the hinge shafts, and two movable plates movable relative to the rotary blocks, and two guiding bracket units, each having male and female arms respectively connected with two movable plates, and a plurality of guiding connecting members interposed between the arms. Each guiding connecting member has a protrusion and a sliding groove, and is angularly movable with the rotations of the hinge shafts. Removal of the protrusion from the sliding groove of an adjacent guiding connecting member is prevented by means of engagement of an abutting portion of the protrusion with an abutted block in the groove.

Abstract: A hinge includes two rotatable axle units disposed on a base seat and each having two rotatable hinge shafts, two movable bracket units each including a base plate, two rotary blocks non-rotatably sleeved on the hinge shafts, and two movable plates movable relative to the rotary blocks, and two synchronizing units for making synchronous rotations of the hinge shafts. Each synchronizing unit includes a first gear member having two end surfaces in form of bevel gears, and two second gear members each meshing with the respective end surface and fitted to the respective rotary block. Rotations of the hinge shafts at one side of the base seat result in rotations of the rotary blocks and the second gear members, and bring in rotations of the second gear members, the rotary blocks and the hinge shafts at the other side to make the synchronous rotations.

Abstract: A multi-position hinge includes a base seat, a first axle, a second axle and a sliding assembly. The first and second axles rotatably extend through the base seat in a first direction and are spaced apart from each other in a second direction. The first axle has a first recess, a second recess and a first gear portion. The second axle has a third recess, a fourth recess and a second gear portion corresponding with the first recess, the second recess and the first gear portion, respectively. The sliding assembly includes a first sliding member engageable with the first and third recesses, and a second sliding member engageable with the second and fourth recesses. The first and second axles are rotatable in turn and then rotated synchronously to perform multi-position shifting.

Abstract: A hinge is connectable with two housing parts to allow opening and closing of the housing parts. The hinge includes a mounting seat and two rotary units. The mounting seat has a central recessed portion. The rotary units are connected with the mounting seat and shiftable between an unfolded state and a folded state. Each rotary units includes a linking member, a rail sliding block, a rotating bracket and a cover plate. During the shifting from the unfolded state to the folded state, the rail sliding block is slid relative to both the linking member and the rotating bracket and is turned relative to the mounting seat. In the folded state, the cover plates are inclined to each other in a direction away from the mounting seat to cooperate with the central recessed portion to form a space for receiving a bending portion of a flexible display.

Abstract: A hinge includes a fixed seat, and two symmetrically-disposed support modules that are convertible between an unfolded state and a folded state. Each of the support modules includes a sliding pivot arm that is slidable and pivotable with respect to the fixed seat, a pivot guide unit that is movably engaged with the sliding pivot arm, and a slide block that has a slide slot movably engaged with the sliding pivot arm, and an oblique sliding portion movably engaged with the pivot guide unit, such that the slide block is slidable with respect to the sliding pivot arm and the pivot guide unit when the support modules are converted between the unfolded state and the folded state.

Abstract: A hinge includes two brackets and a sliding module. Each bracket has a support shaft and a support plate for supporting a flexible display. The sliding module includes a rail seat, two rail keys, two axle keys and two auxiliary extending frames. The rail seat has two arcuate inboard rails, two receiving slots and two arcuate outboard rails. Each rail key has a key body received in the receiving slot, a sliding protrusion slidable along the arcuate inboard rail, and an arcuate key rail opposite to the sliding protrusion. The axle keys are slidable along the arcuate key rails, and are journalled on the support shafts. The auxiliary extending frames are slidable along the arcuate outboard rails and slidably connected with the support plates. With adjustment of the rails, moving paths of the keys are adjusted to meet the requirement of bending of the flexible display.

Abstract: A lever-operated latch device includes an assembly of a case body, an actuation body mounted on the case body, a linking member and a slide body. The actuation body has a free end and a pivoted end pivotally connected with the case body in cooperation with elastic members. The free end of the actuation body is formed with two protruding arms and an opening section positioned between the protruding arms. An operation section is disposed in the opening section. The linking member has a first end pivotally connected with the free end of the actuation body (or the operation section) and a second end connected with the slide body. When an operator presses the operation section, the actuation body is permitted to move from a closed position to an opened position so as to drive the linking member and the slide body to move.

Abstract: A hinge includes a fixed seat, and two symmetrically-disposed support modules that are convertible between an unfolded state and a folded state. Each of the support modules includes a sliding pivot arm that is slidable and pivotable with respect to the fixed seat, a pivot guide unit that is movably engaged with the sliding pivot arm, and a slide block that has a slide slot movably engaged with the sliding pivot arm, and an oblique sliding portion movably engaged with the pivot guide unit, such that the slide block is slidable with respect to the sliding pivot arm and the pivot guide unit when the support modules are converted between the unfolded state and the folded state.