ERASING LIQUID PEN

WIPO Patent Application WO/1997/039901

A1

An erasing liquid pen which comprises a fitting construction for fitting a tip end (11) of a barrel (1) to a fitting portion (22) of a neck member (2), the fitting construction being such that when an annular convex portion (1b) provided on a second fitting portion (11b) and an annular concave groove (2b) provided on an outer shell portion (22a) are engaged with each other, press-fit in a diametrical direction is effected between a first fitting portion (11a) and an inner cylindrical portion (22b) and between the second fitting portion (11b) and an annular bead (2a) provided on the outer shell portion (22a), and an abutting bead (2c) provided on a step portion (22c) is pressure contacted with a tip end surface (1a) of the first fitting portion. Also, a ball holder (7) is constructed such that a connection step between a ball house (7b) and a communication hole (7d) on the ball holder (7) is made small, a tip end edge of the ball holder is rounded and a slitted groove (2g) is provided in a support (2f), which is provided on the neck member to support a coil spring (8). Further, a cap (5) adapted to be put on a neck portion (222) of a barrel body E is provided at its side surface with an operating body (9) to permit the operating body to abut against an inclined portion (2h) of the neck portion.

MACHIDA MINORU (JP)
MORIYAMA NORIO (JP)
KURAMOTO MICHIAKI (JP)

PCT/JP1997/000758

October 30, 1997

March 11, 1997

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PILOT KK (JP)
MACHIDA MINORU (JP)
MORIYAMA NORIO (JP)
KURAMOTO MICHIAKI (JP)

B05C17/005; B43K5/18; B43K7/02; B43K7/10; B43K23/12; B43L19/00; B43M11/08; (IPC1-7): B43L19/00; B43K3/00; B43K23/12

JPH0731170U	1995-06-13
JPH06170320A	1994-06-21
JPS6229103U	1987-02-21
JPH0580791U	1993-11-02
JPH0724470U	1995-05-09

See also references of EP 0856420A4

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