Abstract: A container for extending a stick-shaped material comprises a tubular body and a chuck formed on the tubular body inserted into a chuck ring. The tubular body and the chuck ring are provided with first and second deflectable projecting parts respectively, while a head member is provided with first and second retaining holes the first deflectable projections of the tubular body engage the first retaining holes, while the second deflectable projecting parts of the chuck ring engage the second retaining holes of the head member. A resilient elastic body is mounted between the end of the head member and an elastic body bearing formed on the tubular body. A stick-shaped material such as a stick-shaped eraser is held in the head member and the chuck. The tubular member, the chuck ring, the stick-shaped material and the elastic body are assembled as a unit with the head member. Therefore, the number of parts is reduced and assembly and disassembly becomes relatively easy.

Abstract: The present invention relates to a swing-type mechanical pencil wherein lead can be extended from a head member connected to an outer sleeve by swinging the outer sleeve to move a knocking hammer. The knocking hammer applies a lead-feeding action to feed the lead. A chuck shutting hammer is mounted between a spring bearing of a chuck ring sleeve retaining a chuck ring which is a component of the lead holder and a second spring connected with the chuck. An upward movement of the chuck shutting hammer forces the chuck into a chuck ring. This provides a positive action to shut the chuck preventing slipping of the lead when writing with the mechanical pencil. Manual advance of lead is provided by a slider in a recession an outer surface of the sleeve that engages the lead holder allowing the chuck to be manually opened to extend lead.

Abstract: This invention is to a writing tool such as mechanical pencil or a ballpoint pen in which a writing shaft having a head member is inserted in an outer sleeve in such a manner that the head member projects from the outer sleeve. A stair or step and a spiral groove are provided on the forward inner surface and the rearward inner surface of a tubular cap, respectively, with an inside diameter of the rear part of the spiral groove being larger. A bearing part is brought into contact with a lead tank provided inside a forward art of the tubular part so that the forward part of the outer sleeve is movable in the axial direction and is locked in the turning direction against a rearward inner surface of the outer sleeve. The rearward part of the tubular body is provided with a slit, holding pieces of a stick-shaped object holder slidably inserted in said slit. A stick-shaped object is held by the holding pieces, and the projection is provided on each holder engaged with the spiral groove of the tubular cap.

Abstract: A writing tool in which a core casing (3) or (3a) is inserted in an outer sleeve (2), and an end (6) of core casing (3) or (3a) can be projected out of the end of outer sleeve (2) by operating end (4a). End 6 of core casing (3) or (3a) can be withdrawn by reverse operation of the operating end (4a). A revolution-to-linear movement conversion arrangement for converting a revolutional movement of an operating end (4a) to a axial movement between a core casing (3) or (3a) and an outer sleeve (2) is provided. A retracting spring (5) between the outer sleeve (2) and the core casing (3) or (3a) and the operating end (4a) projecting out of a rear end of the outer sleeve (2) can be forcibly operated against the force of a retracting spring (5).

Abstract: Mechanism for putting the head of a shaft into and out of the head of an outer sleeve comprised of an outer sleeve (1), a long hole (2) formed in the outer sleeve (1), and a clip (3) to be put into and out of the outer sleeve (1) through the long hole (2). A shaft (4) is inserted in the outer sleeve (1), and a cam mechanism (8) cooperates with the clip (3) in a manner that causes the cam mechanism (8) to move forward and backward in an axial direction according to in and out movement of the clip (3). A spring (6) spring-biases the shaft (4) toward the cam mechanism.

Abstract: A thrust-action mechanical pencil having a lead-forwarding mechanism and an outer sleeve, the lead-forwarding mechanism being inserted from the rear end of the outer sleeve. An elastic member to prevent looseness is inserted between a chuck ring sleeve, and an inner ring provided on the inside of the outer sleeve to prevent forward movement. A tubular retaining sleeve having a full length slit is installed between a mouth piece and a stepped portion of the lead forewarding mechanism. A retaining portion on the forward end of the retaining sleeve is set between the mouth piece and the forward end of the outer sleeve to retain the lead-forwarding mechanism in the pencil.

Abstract: A combined writing tool having a body receiving a plurality of writing shafts. The tubular writing shafts have knocking parts on their ends with a rearward end of the writing shafts being held in a respective tubular part. A partition member is interposed between the writing shafts. A pair of springs are provided between a forward retaining part on the partition member and each of the tubular parts. Retaining flaps formed on each respective tubular part have projections retained in through holes in the body when the head end of a selected writing shaft projects out of the body and is retained in a second through hole when a selected body of a writing shaft is withdrawn.

Abstract: The present invention relates to a swing-type mechanical pencil wherein lead can be extended from a head member connected to an outer sleeve by swinging the outer sleeve to move a knocking hammer. The knocking hammer applies a lead-feeding action to feed the lead. A chuck shutting hammer is mounted between a spring bearing of a chuck ring sleeve retaining a chuck ring which is a component of the lead holder and a second spring connected with the chuck. An upward movement of the chuck shutting hammer forces the chuck into a chuck ring. This provides a positive action to shut the chuck preventing slipping of the lead when writing with the mechanical pencil. Manual advance of lead is provided by a slider in a recession an outer surface of the sleeve that engages the lead holder allowing the chuck to be manually opened to extend lead. The recess in the outer sleeve has a restriction that is engaged by a projection in the slider to lock the slider and lead holder against movement and prevent advancing of lead.

Abstract: This invention relates to a container for feeding a bar shaped article such as an erasing gum, a pencil lead, a crayon, a pastel, or an eyebrow stick, especially for advancing or retracting the bar shaped article. A bar shaped article (8) is inserted into an inner sleeve (2) from the rear end with the outer sleeve (1) being held by the hand, then the rear end of the inner sleeve (2) is pressed. Inner sleeve (2) moves forward and rearward against the resilient force of an elastic biasing member (3). A chuck (4) at the end of the inner sleeve (2) opens and closes repeatedly and the end of the bar shaped article (8) is fed out and can be used. When the chuck (4) holds the bar shaped article (8) in an unused state a chuck open means opens the chuck 4 slightly and loosens the securing force preventing encroachment of the chuck (4) into the article (8) allowing the chuck (4) to easily separate from the article (8) when the article (8) is fed out.