Abstract: A composite writing tool wherein when the rear shaft is rotated relative to a front shaft, a cam sleeve rotates with the rear shaft, and the relative rotation occurring between the cam sleeve and the front shaft and an intermediate shaft causes one of writing shafts guided in the axial direction by the intermediate shaft to be selectively held in a protruding position, and when a knock sleeve is knocked, the cam sleeve is knocked to advance a lead of the writing shaft protruded by the cam sleeve. The rear part of the intermediate shaft is inserted into the cam sleeve, and engaging pieces of the rear part of the intermediate shaft penetrate a through hole formed in a perpendicular engaging wall formed in a tail cap fastened to the rear end of a rear shaft, and are engaged with the through hole. The cam sleeve and the knock sleeve are linked to each other through a recess elsewhere than the through hole in the engaging wall.

Abstract: A composite writing utensil comprising a front barrel and a rear barrel, a cam body provided within the barrel unrotatable with respect to the rear barrel, and a slider unrotatable with respect to the front barrel and coupled to each of a plurality of writing shafts. The cam body includes a V-shaped cam projection projecting forward, a cam surface, and a restraining portion. The slider comprises a V-shaped cam projecting rearward, and a slidably-contacted surface extending along the cam that is urged against the cam surface. A relative rotation between front and rear barrels causes the slidably-contacted surface of the cam to slidably contact the cam surface and one of the cams to be restrained by the restraining portion, thus a point of the writing shaft coupled to the slider provided with the cam selectively projects from the point aperture of the barrel.

Abstract: To provide a clip attaching structure wherein a base portion of a clip is not exposed from an outside, and attaching can be performed with a good appearance. An outer sleeve has a rear sleeve and a cap connected to a rear side of the rear sleeve, and the clip has a ring-like base portion fixed to the outer sleeve, a connecting portion extending from the base portion, and a clip main body extending approximately in parallel with the rear sleeve from the connecting portion. At the rear end portion of the rear sleeve, a bent portion is formed, and in the bent portion, a notch penetrated by the connecting portion and a second notch facing to the notch by about 180 degrees are formed. The base portion of the clip passes through the portion in the diameter direction of the rear end opening connecting the notch and the second notch, and goes through the bent portion, and is inserted into an inside of the bent portion of the rear sleeve.

Abstract: A composite writing utensil comprising a front barrel and a rear barrel, a cam body provided within the barrel unrotatable with respect to the rear barrel, and a slider unrotatable with respect to the front barrel and coupled to each of a plurality of writing shafts. The cam body includes a V-shaped cam projection projecting forward, a cam surface, and a restraining portion. The slider comprises a V-shaped cam projecting rearward, and a slidably-contacted surface extending along the cam that is urged against the cam surface. A relative rotation between front and rear barrels causes the slidably-contacted surface of the cam to slidably contact the cam surface and one of the cams to be restrained by the restraining portion, thus a point of the writing shaft coupled to the slider provided with the cam selectively projects from the point aperture of the barrel.

Abstract: In a cartridge type stationery product including a body and a cartridge attachable to and detachable from the body, the cartridge is capable of being inserted from an opening of the body, a locking groove is formed on the body, and a locking protrusion which is inserted into the locking groove is formed on the cartridge, and the locking groove is constructed by a first groove portion extending in an axial direction from a vicinity of the opening, and a second groove portion extending from the first groove portion to form an angle with the first groove portion.

Abstract: A double-chuck mechanical pencil comprises a barrel, a barrel cap detachably attached to a front end of the barrel, a lead tank inserted in the barrel, a feed chuck for feeding leads, combined with the lead tank, a sleeve bolster disposed on the front side of the feed chuck, and a holding chuck combined with the sleeve bolster. A holding chuck unit including the holding chuck and the sleeve bolster, and a feed chuck unit including the feed chuck and a sleeve can come into contact with each other in the barrel cap.

Abstract: A composite holding tool has a space in a rear barrel to be effectively used in order to expand a range of use of one composite holding tool. The composite holding tool includes a front barrel, a rear barrel rotatably connected to the front barrel, a plurality of holding bodies housed in the front barrel non-rotatably relative to the front barrel and movably in an axial direction, a cam cylinder that rotates integrally with the rear barrel, and can selectively hold any of the plurality of holding bodies, with a tip of the holding body protruding from a tip of the front barrel, by a relative rotation between the front barrel and the rear barrel, and a cartridge connected to the rear barrel or the cam cylinder and placed in the rear barrel.

Abstract: A knock-type liquid container includes a body having a tank that holds a liquid, and an outlet provided at a forward end, a piston in the tank, and a piston-advancing mechanism having a knocking body that projects rearwardly of the body for advancing the piston forwardly when the knocking body is knocked in an axial direction of the container. A rearward end surface of the rear cap that forms a rear end surface of the container, except the knocking body is not normal to the axial direction, but makes an angle other than an approximate right angle with the axial direction. A distance between a rear end surface of the knocking body at a non-knocking position and a rearmost portion of the rearward end surface of the container, except the knocking body, is less than a stroke of the knocking body required for advancing the piston.

Abstract: A double-chuck mechanical pencil comprises a barrel, a barrel cap detachably attached to a front end of the barrel, a lead tank inserted in the barrel, a feed chuck for feeding leads, combined with the lead tank, a sleeve bolster disposed on the front side of the feed chuck, and a holding chuck combined with the sleeve bolster. A holding chuck unit including the holding chuck and the sleeve bolster, and a feed chuck unit including the feed chuck and a sleeve can come into contact with each other in the barrel cap.

Abstract: To provide a clip attaching structure wherein a base portion of a clip is not exposed from an outside, and attaching can be performed with a good appearance. An outer sleeve has a rear sleeve and a cap connected to a rear side of the rear sleeve, and the clip has a ring-like base portion fixed to the outer sleeve, a connecting portion extending from the base portion, and a clip main body extending approximately in parallel with the rear sleeve from the connecting portion. At the rear end portion of the rear sleeve, a bent portion is formed, and in the bent portion, a notch penetrated by the connecting portion and a second notch facing to the notch by about 180 degrees are formed. The base portion of the clip passes through the portion in the diameter direction of the rear end opening connecting the notch and the second notch, and goes through the bent portion, and is inserted into an inside of the bent portion of the rear sleeve.

Abstract: A knock-type liquid container includes a body having a tank that holds a liquid, and an outlet provided at a forward end, a piston in the tank, and a piston-advancing mechanism having a knocking body that projects rearwardly of the body for advancing the piston forwardly when the knocking body is knocked in an axial direction of the container. A rearward end surface of the rear cap that forms a rear end surface of the container, except the knocking body is not normal to the axial direction, but makes an angle other than an approximate right angle with the axial direction. A distance between a rear end surface of the knocking body at a non-knocking position and a rearmost portion of the rearward end surface of the container, except the knocking body, is less than a stroke of the knocking body required for advancing the piston.

Abstract: In a transfer press having feed bars and a press drive, an improved feed bar driving apparatus has a vertical rod reciprocally movable in association with the press drive and having a threaded portion, a drive means to the vertical rod means for rotating the vertical rod means in opposite directions, a feed screw device connected to the threaded portion of the vertical rod for being rotated by the vertical rod in opposite directions by rotation and reciprocation of the vertical rod, a pair of feed bar receptacles slidably supporting the feed bars and connected to the feed screw device for being moved toward and away from each other when the feed screw device is rotated in respective opposite directions for moving the feed bars in a clamping and unclamping movement, a cam rotatable in assocation with the press drive, a lever mounted on a fulcrum and connected to the vertical rod and in contact with the cam for being pivoted around the fulcrum by the cam for moving the vertical rod through a stroke, and a strok

Abstract: Feed bar advance and return driving apparatus for a transfer press. An upper slider is reciprocally vertically movable in the press crown in synchronization with the operation of the press, and a pinion rotatably mounted on the upper slider is rotated alternatingly in opposite directions with the upward and downward vertical movement of the upper slider. A drive rack vertically slidably supported on the upper slider is connected to the pinion at a position on the pinion which is eccentric to the axis of rotation of the pinion and is reciprocally vertically driven by the rotation of the pinion. The lower end of the drive rack extends downwardly and engages a drive pinion for rotating the drive pinion alternatingly in opposite directions during the reciprocal vertical motion of the drive rack.