JPS62203087U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a composite writing instrument according to an embodiment of this invention, Fig. 2 is a sectional view taken along the line - - in Fig. 1, Fig. 3 is an enlarged plan view of the sheath, and Fig. 4 is the same sectional view. 5
The figure is a cross-sectional view taken along the line -- of FIG. 3, FIG. 6 is a front end view of the sheath 2, FIG. 7 is a plan view of the cam cylinder, and FIG. 8 is a sectional view of the sheath 2.
9 is a sectional view taken along the line ``-'' in FIG. 7, FIG. 10 is a sectional view taken along the ``-'' line in FIG. FIG. 13 is a developed view of the cam barrel according to the second embodiment, and FIG.
Figure 4 is a cross-sectional view taken along the line A-A in Figure 13, Figure 15 is a cross-sectional view showing the main part of the rear outer cylinder in Figure 13, and Figure 16 is a cross-sectional view showing the main part of the front outer cylinder in Figure 13. Cross section, 1st
7 is a sectional view showing the sheath of FIG. 13, FIG. 18 is a sectional view of the main parts of the composite writing instrument according to the fourth embodiment, and FIG.
9 is a plan view showing the sheath of FIG. 18, FIG. 20 is a sectional view of the composite writing instrument according to the fifth embodiment, FIG. 21 is a sectional view of the sheath of FIG. 20, and FIG. 22 is a sectional view of the sheath of FIG. 20. Rear end view with the cam cylinder fitted into the sheath of the 23rd
The figure is a sectional view taken along the line B-B in Figure 21, and Figure 24 is a cross-sectional view taken along the line BB in Figure 21.
A cross-sectional view of the cam cylinder in Figure 0, and Figure 25 is a cross-sectional view of the cam cylinder in Figure 24.
-C-line sectional view, Fig. 26 is a rear end view of the cam cylinder shown in Fig. 25, Fig. 27 is a plan view showing another embodiment of the cam cylinder, and Fig. 28 is a developed view of the cam cylinder shown in Fig. 27. It is. In the figure, 1 is a front outer cylinder, 2 is a sheath, 3 is a rear outer cylinder, 4 is a first reflex, 5 is a second reflex, 6 is a cam cylinder, 7 is a crown screw, 8 is a clip,
23a is a locking pawl, 60 is a shaft insertion hole, and 71 is a protruding shaft portion.

Claims (1)

[Claims for Utility Model Registration] (1) A rear outer cylinder 3 is rotatably and removably connected to the rear end of the front outer cylinder 1, and as the rear outer cylinder 3 rotates, the front outer cylinder 1 A compound writing instrument in which a first refill 4 and a second refill 5, which are slidably inserted in the axial direction inside the front outer cylinder 1, are alternately protruded and retracted, and are detachably connected to the rear end of the front outer cylinder 1. is,
A sheath 2 on which the first and second refils 4 and 5 are slidably attached in the axial direction is engaged in the axial direction within the rear outer cylinder 3, and the rear end of the sheath 2 is locked. The pawl 23a is rotatably inserted and supported in the shaft insertion hole 60, and by the rotation of the rear outer cylinder 3, the rear end of the first refill 4 and the second refill 5 are
A cam cylinder 6 for shaft protrusion and retraction that is alternately pressed and engaged with the rear end; and a crown screw that is fitted inside the rear end of the cam cylinder 6 and inserts and engages the sheath 2 into the cam cylinder 6. A composite writing instrument equipped with 7. (2) The composite writing instrument according to claim 1, wherein the crest screw 7 is formed by integrally joining the cam cylinder 6 and the rear outer cylinder 3.