摘要:
A lead cartridge capable of holding a rod-shaped object of a sufficient length and allowing simultaneous replacement of the lead and the rod-shaped object is to be provided. A lead cartridge which includes a lead tank for containing leads and is detachably incorporated into a mechanical pencil to supply leads has a rod-shaped object feeding mechanism which propels the rod-shaped object by turning manipulation. This rod-shaped object feeding mechanism is configured of a spiral groove formed in the inner circumferential surface of a case comprising the lead tank, a guide sleeve which is arranged in the case to be unable to move in the axial direction and able to turn relative to the case and in which guide holes extending in the axial direction are formed, and a receptacle which is slidably fitted into the guide holes of the guide sleeve and has a male thread screwing into the spiral groove. A rod-shaped object is held by the receptacle. When the lead cartridge is incorporated into a mechanical pencil, the case becomes unable to turn relative to the outer sleeve of the mechanical pencil, and part of the guide sleeve protrudes out of the mechanical pencil.
摘要:
The liquid container includes a body for having a tank portion housing a liquid, and having a supply port on a tip end side, a piston for moving forward inside the tank portion, a piston rod connected with the piston and extending rearward, a manipulating cylinder rotatably mounted to a rear portion of the body, and a rotation stopping cylinder unrotatably disposed in a rear inner portion of the body. A conversion mechanism for converting relative rotation between the manipulating cylinder and the body into movement of the piston rod in an axial direction with respect to the body is provided between the manipulating cylinder and the rotation stopping cylinder, and a rotating direction restricting mechanism for restricting the rotating direction of the manipulating cylinder and the body to one direction is provided. The manipulating cylinder and the rotation stopping cylinder are integrally connected by fitting the annular raised portion formed on the rotation stopping cylinder into the annular recessed portion formed on the manipulating cylinder.
摘要:
In a stick-like object receiving member having safety precautions, which receives a stick-like object, a sufficient air passage is secured without exerting an influence on the size of the stick-like object or the receiving member. An eraser receiving member 16, which is the stick-like object receiving member, includes a cylindrical side portion 16b which engages with at least a part of the outer peripheral surface of an eraser 13, and surrounds at least a part of the outer peripheral surface of the eraser 13, and a bottom portion 16a which closes one end of the cylindrical side portion 16b. A slit 16e is formed in the cylindrical side portion 16b and bottom portion 16a so as to penetrate the cylindrical side portion 16b and bottom portion 16a in the axial direction, and the slit 16e serves as an air passage.
摘要:
A clip mounting structure for providing a large amount of rocking of a clip without requiring any spring or the like, includes a clip which has a base which is inserted into a groove within a cap sleeve, a clip body which is located outside of the cap sleeve and extends substantially in parallel to an axial direction, and mainly has a surface substantially orthogonal to a radial direction, and a coupling portion which extends in the radial direction, for coupling the base to the clip body. When the clip is caused to rock by holding the clip body, an angle between the coupling portion and the base becomes larger to deform the clip. Since the coupling portion is not restricted by the cap sleeve, the coupling portion can become deformed greatly. Also, the cap sleeve prevents the coupling portion from rolling.
摘要:
A writing utensil includes an external cylinder, a lead feeding mechanism housed in the external cylinder and propelling a lead forward, and a rear-end knocking member movable in conjunction with the lead feeding mechanism in an axial direction. The rear-end knocking member is integrally formed and includes a cylindrical section, a clip section, and a connecting section. The cylindrical section has a central hole into which the rear end of a lead case of the lead feeding mechanism is inserted and in which the rear of the cylindrical section protrudes from the rear end of the external cylinder. A clip section extends outside and along the external cylinder in an axial direction and a connecting section passing through a stem hole formed in the rear side face of the external cylinder for connecting the cylindrical section and the clip section together.
摘要:
A side knock type mechanical pencil including a cylindrical shell having a ferrule; a slide member disposed axially movably within the cylindrical shell; a chuck disposed in front of the slide member, with a chuck ring being loosely fitted on the chuck; a chuck spring for urging the chuck backward; and a side knock mechanism provided in the cylindrical shell, the said side knock mechanism comprising a side knock member provided in the cylindrical shell and the slide member, the slide member being movable axially against the backward bias of the chuck spring and having a slant portion for abutment with the side knock member when the side knock member is depressed radially.
摘要:
A liquid container such that the liquid received in it will not easily spring out from its tip even if it is wrongly operated, comprises a tank portion for receiving a liquid, a knock bar stretching axially movably within the tank portion which is designed to have on its axial tip portion a pump shelf portion whose diameter have been enlarged, an induction bar fixed into the tip of the knock bar, a brush provided on the tip side of the induction bar, and a spring for always energizing the above knock bar and induction bar rearward. On the internal periphery surface of the above tank portion, a plurality of ribs are formed which stretch axially and on top of which the above pump shelf portion can slide, the internal periphery surface ahead of the ribs is at the same level as and continuous with the top face of the ribs and designed as a diameter-reducing portion where the pump shelf portion can slide. The pump shelf portion slidably touches the ribs when it is not biased.
摘要:
An installation structure for a writing instrument includes an outer cylinder and a lead advancing mechanism, which is housed in the outer cylinder and has a sleeve provided with a protruding portion protruding in the outward direction, for advancing a lead by a predetermined amount. The lead advancing mechanism is installed in the outer cylinder so as to prevent the lead advancing mechanism from coming off (e.g., decoupling from) the outer cylinder by making the front end of the sleeve abut a step portion formed on the inner peripheral surface of the outer cylinder and fixing the protruding portion provided on the sleeve to a second step portion formed on the inner peripheral surface of the outer cylinder.
摘要:
A side knock type mechanical pencil including a cylindrical shell having a ferrule; a slide member disposed axially movably within the cylindrical shell; a chuck disposed in front of the slide member, with a chuck ring being loosely fitted on the chuck; a chuck spring for urging the chuck backward; and a side knock mechanism provided in the cylindrical shell, the side knock mechanism comprising a side knock member provided in the cylindrical shell and the slide member, the slide member being movable axially against the backward bias of the chuck spring and having a slant portion for abutment with the side knock member when the side knock member is depressed radially.
摘要:
A double-chuck mechanical pencil has an outer tube, a tip fitting provided in the front of the outer tube, a tip chuck located at the tip of the tip fitting for holding a writing substance (e.g., a lead) and urged rearward in the axial directed, and a delivery chuck for delivering the lead. At least one of the tip chuck and the delivery chuck is formed of a synthetic resin material including polyoxymethylene.