Abstract: The present invention relates to a paper cup, and more particularly, to a foldable paper cup in which a volume of a container is variable, and a method of manufacturing a side paper of the foldable paper cup. The method of manufacturing the side paper of the foldable paper cup includes: a first step of forming a cutting part for dividing a portion of a continuous side paper source paper into upper and lower portions of the side paper; a second step of providing a release part to which the side paper source paper and a film do not adhere on a portion of the upper portion of the side paper so as to laminate the film and the side paper source paper; a third step of cutting a film on one end of the release part and separating the side paper from the side paper source paper in a fan shape; and a fourth step of rolling up the side paper around a forming mechanism to form a container sidewall having a cone shape.

Abstract: The present invention relates to a paper cup, and more particularly, to a foldable paper cup in which a volume of a container is variable, and a method of manufacturing a side paper of the foldable paper cup. The method of manufacturing the side paper of the foldable paper cup includes: a first step of forming a cutting part for dividing a portion of a continuous side paper source paper into upper and lower portions of the side paper; a second step of providing a release part to which the side paper source paper and a film do not adhere on a portion of the upper portion of the side paper so as to laminate the film and the side paper source paper; a third step of cutting a film on one end of the release part and separating the side paper from the side paper source paper in a fan shape; and a fourth step of rolling up the side paper around a forming mechanism to form a container sidewall having a cone shape.

Abstract: The present invention relates to a manual wheelchair wheel, and in particular, to a manual wheelchair wheel with a built-in geared hub through which the speed of a forward or reverse driving force is shifted and said driving force is transferred, and which has an anti-reverse function, wherein the wheel is light and can easily replace existing wheelchair wheels.

Abstract: The present invention relates to a multistage transmission, comprising: a center shaft arranged in a frame such that the center shaft does not rotate; an input member arranged coaxially to the center shaft such that the input member is rotatable; a hub arranged coaxially to the center shaft such that the hub is rotatable; an epicyclic gear set which is coupled to the input member and mounted on the hub, and which is arranged coaxially to the center shaft such that the epicyclic gear set is rotatable, and which has at least two pairs of epicyclic gears, wherein each of the epicyclic gears has a sun gear, a ring gear, a satellite carrier and a pinion; an axial clutch which is involved in the operation of the sun gear which is selectively coupled to or separated from at least one of the peripheral members; a clutch assembly in which at least one of the clutches in a rotating direction are arranged in correspondence with the respective sun gears, wherein said clutches in the rotating direction are involved in the

Abstract: The present invention relates to a multistage transmission, comprising: a center shaft arranged in a frame such that the center shaft does not rotate; an input member arranged coaxially to the center shaft such that the input member is rotatable; a hub arranged coaxially to the center shaft such that the hub is rotatable; an epicyclic gear set which is coupled to the input member and mounted on the hub, and which is arranged coaxially to the center shaft such that the epicyclic gear set is rotatable, and which has at least two pairs of epicyclic gears, wherein each of the epicyclic gears has a sun gear, a ring gear, a satellite carrier and a pinion; an axial clutch which is involved in the operation of the sun gear which is selectively coupled to or separated from at least one of the peripheral members; a clutch assembly in which at least one of the clutches in a rotating direction are arranged in correspondence with the respective sun gears, wherein said clutches in the rotating direction are involved in the

Abstract: The present invention discloses a continuously variable transmission employing an inner-outer spherical traction drive system which uses as a power transmission medium a bevel gear having a traction power transmission surface with an obtuse-angle cone shape.

Abstract: A reverse input prevention clutch bearing assembly comprises a first rotational member and a second rotational member which are arranged on a coaxial line and has orbit surfaces with different radii and a plurality of rolling members between the two orbit surfaces. The assembly also has a cage which supports the rolling members, and a distinguished wedge ring assembly which allows or does not allow the rolling members to rotate based on the change of the rotational direction gap between the first rotational member and the control member and the rotational direction of the control member.

Abstract: This invention touches the planetary gear type transmission which is comprised of a pair of single planetary gear rows are combined, and a carrier of one side and a ring gear of the other side are integrated, and a housing of a transmission is formed with the help of two carriers which operate as an input side and an output side, respectively. The transmission work is implemented by controlling the each sun gear which is rotatably installed at the fixed center shaft to engage or disengage with said center shaft or by controlling an integration and a disintegration of two sun gears. This invention gives the planetary gear type transmission a compact size and a light weight because the carrier plays a role for the housing. The center shaft can be engaged and disengaged with the body of the vehicle.

Abstract: This invention presents a reverse input prevention clutch bearing assembly in which a forward and a reverse torque inputted from an input side is transmitted to a output side, while locks the transmission of the forward or the reverse torque inputted from the output side to the input side by locking the output side or by separating the output side from the input side. The reverse input prevention clutch bearing assembly has a first rotational member and a second rotational member which are arranged on a coaxial line and has orbit surfaces with different radii and a plurality of rolling members which are arranged in a circumferential shape between the two orbit surfaces so that the outer circumferential surfaces of the rolling members are contact-rotatable.