JPH01156081U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show an embodiment of the tip of the marking pen of the present invention. Figure 1 is a vertical sectional view of the main part with the cap fitted to the tip of the barrel, and Figure 2 is a diagram showing the cap removed from the tip of the barrel. Fig. 3 is a longitudinal sectional view of the main part in an intermediate state of operation, Fig. 3 is a longitudinal sectional view of the main part with the cap removed, Fig. 4 is a longitudinal sectional view of the main part with the pen body worn after writing, Fig. 5 The figure is a vertical cross-sectional view of the main part in an intermediate state of the operation of fitting the cap to the tip of the barrel, Figure 6 is a cross-sectional view taken along line A-A in Figure 1, and Figure 7 is a cross-sectional view taken along line B-B in Figure 1. 8 are exploded perspective views of the tip of the marking pen of the present invention. DESCRIPTION OF SYMBOLS 1...Tip of marking pen, 2...Tip of barrel, 21...Reduced diameter part, 3...Chuck member, 31
... Large diameter part, 32 ... Slit, 33 ... Spring body, 4 ... Guide member, 41 ... Spring body, 5 ... Pen body, 6 ... Cap, 61 ... Bottomed cylindrical body, 6
2...Large diameter hole, 63...Sliding hole, 65...Spring body.

Claims (1)

[Scope of utility model registration request] By fitting the cap onto the tip of the shaft cylinder,
In a marking pen of the type that adjusts the protrusion length of the pen tip from the writing tip to a constant level by sliding an external cylindrical guide member on the pen body, a cylindrical guide member 4 is attached to the tip 2 of the barrel as a spring body. 41 toward the writing tip, and is housed with the front end protruding from the axial cylinder tip 2, and the guide member 4 has a cylindrical chuck member for regulating the sliding movement of the member in the axial direction. 3 is concentrically inserted and arranged with its front end protruding to a length shorter than the protrusion length of the guide member. A slit 32 in the axial direction is disposed, and a spring body 33 is disposed at the rear end of the large diameter portion 31, which urges the member toward the writing tip and causes the large diameter portion 31 to contract on the inner wall of the shaft cylinder. The cap 6 has a large diameter hole 62 and a large diameter hole 62 therein. A small-diameter sliding hole 63 that communicates with the hole and has a reduced diameter and extends toward the top is provided, and the sliding hole 63 is provided with a reduced-diameter portion 64 . The bottom cylindrical body 61 has its bottom surface supported from the top direction by a spring body 65 and is arranged to be slidable in the axial direction, and the spring force of the spring body 65 is configured to be greater than that of the spring body 41. When the cap is fitted onto the tip 2 of the shaft cylinder, the reduced diameter portion 64 presses the front end of the chuck member 3 in the backward direction, causing the member to retreat, and the large diameter portion 31 causes the guide member 4 to move forward. The radial clamping pressure is released to allow the member to slide freely in the axial direction, and when the tip of the pen body 5 is in contact with the inner bottom surface of the bottomed cylindrical body 61, the protrusion length of the pen body 5 is In the process of causing the guide member 4 to slide corresponding to the fluctuation and removing the cap 6, the bottomed cylindrical body 61 continues to slide until the guide member 4 is clamped by the chuck member 3. A tip part 1 of a marking pen configured to be able to write while being stopped and keeping the protruding length of a pen body 5 from the writing tip constant.