JP2003039887A - Cap with shutter of writing utensil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap with a shutter, in which a pen point is retracted and extended by twisting the cap and the cap is tightly closed by the shutter in order to house and tightly close the pen point without detaching and attaching the cap from and to a writing utensil main body. SOLUTION: A hole is provided at the tip of the cap (1). A shutter (2) is mounted in the cap (1) by means of mounting holes (4) and (5). A mounting hole (6) of an arm part is mounted to a main body. A guide groove (10) is provided on the main body (3). Thus, by twisting the cap (1), the pen point (8) is retracted and extended and the shutter (2) is interlockingly opened and closed.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument main body in which a cap is stored and sealed without removing the cap from the writing instrument body, thereby preventing loss of the cap and drying the pen tip. The present invention relates to a writing instrument that has both prevention. 2. Description of the Related Art In a conventional writing instrument, the tip of the writing instrument can be prevented from being dried by placing a cap on the pen tip or by providing a complicated mechanism in the writing instrument body and storing the pen tip. [0003] This has the following disadvantages. Some writing instruments such as felt-tip pens and whiteboard markers have become less capless, and many of the writing instruments have lost their caps, making them immediately unusable. The present invention has been made to eliminate the above disadvantages. [0004] A hole (9) is provided at the tip of the cap (1). A projection (7) on the shutter (2),
Mounting holes (4), (5) and (6) are provided. Mounting hole (4) for shutter (2) inside cap (1)
Attach in (5). The mounting hole (4) allows rotation and the mounting hole (5) enables rotation and sliding. Attach the mounting hole (6) to the main body (3). The mounting hole (6) is rotatable. A guide groove (10) is provided in the main body (3). This changes the spiral pitch so that the cap (1) moves in accordance with the movement of the arm (12). Also, by adjusting the spiral pitch so that the interval between the mounting holes (5) and (6) gradually increases, the shutter portion (11) is shortened, and when the shutter portion (11) is tilted and opened / closed, the inside of the cap is opened. To prevent interference. The present invention
A non-detachable cap with shutter having the above configuration. [0005] Embodiments of the present invention will be described below. When the pen tip is stored, the pen is in an extended state. At this time, the shutter portion (11) pressed by the arm portion (12) to form a U-shape extends, and the projection (7) comes into close contact with the hole (8) to seal the inside of the cap. In use, the whole will be in a shortened state. The arm portion (12) is wound around the main body (3), and the shutter portion (11) is shortened, and at the same time, is tilted so as not to hinder the movement of the pen tip (8), and the pen tip (8) is taken out. The movement of the shutter (2) is linked with the cap (1). By twisting the cap (1), the whole expands and contracts along the guide groove. The pitch of the guide groove (10) is basically changed in accordance with the movement of the arm (12). On this basis, the interval between the mounting portions of the mounting holes (5) and (6) is adjusted so as to gradually increase at the same time as the arm portion (12) is wound up. Thereby, the movement of the shutter section (11) is arbitrarily adjusted. Further, at both ends of the guide groove (10), portions of 0 pitch are provided to prevent the cap (11) from expanding and contracting by operations other than twisting. According to the present invention, the pen tip is taken in and out by twisting the cap, and the cap is closed by the shutter when stored to prevent the pen tip from drying. [0006] Since the cap is not removed, there is no loss of the cap, and there is no trouble in handling the cap removed during use.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of the present invention. FIG. 2 is a perspective view of the present invention. FIG. 3 is a plan view and a front view of a shutter according to the present invention. [Description of Signs] 1 Cap 2 Shutter 3 Main body 4 Mounting hole 5 Mounting hole 6 Mounting hole 7 Protrusion 8 Nib 9 Hole 10 Guide groove 11 Shutter section 12 Arm section

Claims (1)

(1) A hole (9) is provided at the tip of the cap (1), and a shutter (2) is provided in the cap. (B) A projection (7) that closes the hole (9) on the shutter,
Mounting holes (4), (5) and (6) were provided, and the mounting hole (5) was formed as a slit so that the length of the shutter portion (11) could be changed. (C) The body (3) is provided with a guide groove (10) for controlling the movement of the cap (1). (D) A cap with a shutter in which the cap (1) is twisted to put the pen tip (8) in and out, and the shutter (2) is opened and closed according to (a), (b) and (c) above.