Abstract: A thermochromic writing tool which includes a writing element including a reservoir in which thermochromic ink is retained, and a writing point portion which is disposed on a front end portion of the reservoir and from which the thermochromic ink is dischargeable; a barrel which is made of a resin and in which the writing element is accommodated so as to be movable in a longitudinal direction; a protruding and retracting mechanism including a push element made of a resin and disposed on a rear end portion of the barrel so as to be tiltable in a radial direction relative to an axis of the barrel; and a rub portion disposed on a rear end portion of the push element 5.

Abstract: Disclosed is a thermochromic writing tool which includes a writing element including a reservoir in which thermochromic ink is retained, and a writing point portion which is disposed on a front end portion of the reservoir and from which the thermochromic ink is dischargeable; a barrel which is made of a resin and in which the writing element is accommodated so as to be movable in a longitudinal direction; a protruding and retracting mechanism including a push element made of a resin and disposed on a rear end portion of the barrel so as to be tiltable in a radial direction relative to an axis of the barrel; and a rub portion disposed on a rear end portion of the push element 5.

Abstract: A writing implement provided with a strong clip is simple in construction and is provided with a coil spring restrained from easily falling off. The writing implement (1, 11, 21) includes a tubular body (2), a clip (3), a pillar (7) formed on the outer surface of the tubular body, a connecting structure R connecting the clip and the pillar, a coil spring (4) extended between the inner surface of the clip and the tubular body and capable of loading the clip such that a front end part (3aa) of the inner surface of the clip is pressed elastically against the outer surface of the tubular body, and a projection (5) formed on the outer surface of the tubular body so as to project toward the clip and fitted in the coil spring. Preferably, the clip is provided with a back wall (10) projecting from a back part (3ab) of the inner surface (3a) of the clip and the coil spring is disposed on the front side of the back wall. The projection (5) has a height not smaller than half the length of the coil spring.

Abstract: A writing implement provided with a strong clip is simple in construction and is provided with a coil spring restrained from easily falling off. The writing implement (1, 11, 21) includes a tubular body (2), a clip (3), a pillar (7) formed on the outer surface of the tubular body, a Connecting Structure® connecting the clip and the pillar, a coil spring (4) extended between the inner surface of the clip and the tubular body and capable of loading the clip such that a front end part (3aa) of the inner surface of the clip is pressed elastically against the outer surface of the tubular body, and a projection (5) formed on the outer surface of the tubular body so as to project toward the clip and fitted in the coil spring. Preferably, the clip is provided with a back wall (10) projecting from a back part (3ab) of the inner surface (3a) of the clip and the coil spring is disposed on the front side of the back wall.