Abstract: The present disclosure relates to a foldable PTO shaft protection cover for protecting a PTO shaft installed at the rear of a tractor when connecting a working machine to the rear of a tractor to work and separating the working machine from the rear. A foldable PTO shaft protection cover for protecting a PTO shaft of a tractor from the outside includes: a rear cover covering the circumference of a PTO shaft; left and right covers installed at left and right sides of the rear cover and covering the PTO shaft at the left and right sides; a top cover mounted to be able to rotate 90 degrees up and down above and ahead of the left and right covers; and a bracket disposed over the left and right covers to be installed on a tractor body and supporting a top cover in an opened state or a closed state.

Abstract: Disclosed is a mid mower device mounted between front and rear wheels of a working vehicle to perform grass mowing. The mid mower auto-connection device can reduce a mounting/removing time of the mid mower with respect to the working vehicle, and provide the user's convenience in response to mounting/removing of the mid mower. The device includes front fixation brackets fixed to a vehicle body frame of the working vehicle, a front shaft coupled to front links protruding toward a front space of the mid mower, rear fixation brackets fixed to rear portions of the mid mower, rotation links rotatably mounted to the vehicle body frame, a female connector shaft connected to a gear box of the mid mower via a universal joint, and a male connector shaft connected to a PTO shaft of the working vehicle via a universal joint, and including a male connector part.

Abstract: A quick joint of a front loader, the quick joint includes: a coupling member (30) having a hook shape and pivotally connected to a first pivot point (P1) of a boom post (20) through a first pivot shaft (31); a spring member (32) for applying an elastic force in a direction of releasing the coupling member (30) from a coupling target shaft (14) disposed on a boom post support (10) which is attached to a tractor (1); a lock unit (34) having a part making contact with the coupling member (30), and provided with a lock pin (36) for restraining behavior of the coupling member (30) at a coupling position (A1); and a guide slot (38) having an arc shape and formed in the boom post (20) to define a moving path of the lock pin (36) when the lock unit (34) rotates.

Abstract: A quick joint of a front loader, the quick joint includes: a coupling member (30) having a hook shape and pivotally connected to a first pivot point (P1) of a boom post (20) through a first pivot shaft (31); a spring member (32) for applying an elastic force in a direction of releasing the coupling member (30) from a coupling target shaft (14) disposed on a boom post support (10) which is attached to a tractor (1); a lock unit (34) having a part making contact with the coupling member (30), and provided with a lock pin (36) for restraining behavior of the coupling member (30) at a coupling position (A1); and a guide slot (38) having an arc shape and formed in the boom post (20) to define a moving path of the lock pin (36) when the lock unit (34) rotates.

Abstract: A joystick lever assembly includes: a base part; an operation part that is mounted on a first side plate of the base part and has rotary elements rotated with respect to each of forward, backward, leftward, and rightward directions by a joystick lever; a first connector connected to one side of the operation part; a second connector connected to a central part of the operation part; a lock part including a lock lever unit that is mounted on the second side plate of the base part and performs a rotary motion in a forward/backward direction, and a lock member that performs a rectilinear motion in a rotary direction of the lock lever on the floor plate according to the rotary motion of the lock lever unit; and a first stopper and a second stopper coupled to the bottoms of the first connector and the second connector.

Abstract: A joystick lever assembly includes: a base part; an operation part that is mounted on a first side plate of the base part and has rotary elements rotated with respect to each of forward, backward, leftward, and rightward directions by a joystick lever; a first connector connected to one side of the operation part; a second connector connected to a central part of the operation part; a lock part including a lock lever unit that is mounted on the second side plate of the base part and performs a rotary motion in a forward/backward direction, and a lock member that performs a rectilinear motion in a rotary direction of the lock lever on the floor plate according to the rotary motion of the lock lever unit; and a first stopper and a second stopper coupled to the bottoms of the first connector and the second connector.

Abstract: A color cathode ray tube including: a panel having a substantially flat outer surface and an inner surface having a curvature; a funnel coupled to the panel; a deflection yoke installed at an outer surface of the funnel; and a reinforcing band installed at a skirt portion of the panel, wherein the panel and the funnel satisfy the following condition, U/U??2.5, when a diagonal size of an effective surface of the panel is U, and a tube axis directional distance from an outer surface center of the panel to a boundary portion (TOR) between a body part and a yoke part of the funnel is U?, so that in the color cathode ray tube of the present invention, a lightness and slimness of a panel can be accomplished, and in order to compensate the weak structural strength caused in this case, a reinforcing band position (h) is set in the range of 10.5 mm˜20 mm to implement an optimum tensile force.

Abstract: A color cathode ray tube is disclosed. A color cathode ray tube including: a panel having a substantially flat outer surface and an inner surface having a curvature; a funnel coupled to the panel; a deflection yoke installed at an outer surface of the funnel; and a reinforcing band installed at a skirt portion of the panel, wherein the panel and the funnel satisfy the following condition, U/U??2.5, when a diagonal size of an effective surface of the panel is U, and a tube axis directional distance from an outer surface center of the panel to a boundary portion (TOR) between a body part and a yoke part of the funnel is U?, so that In the color cathode ray tube of the present invention, a lightness and slimness of a panel can be accomplished, and in order to compensate the weak structural strength caused in this case, a reinforcing band position (h) is set in the range of 10.5 mm˜20 mm to implement an optimum tensile force.

Abstract: The present invention relates to a support frame for a cathode-ray tube which is capable of preventing damage of a corner portion of a support frame circumference in forming of the support frame. The support frame for supporting a shadow mask of a cathode-ray tube in accordance with the present invention comprises notches formed on a certain portion of an upper surface of the corner portion of the support frame circumference, in more detail on the longer side and shorter side of the support frame circumference.