JPS5912230Y2 - Mounting structure of core in writing instrument cap - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a core attachment structure for attaching the core to the cap of a writing instrument without using screws.

Conventionally, to attach the core to the cap using screws,
A structure is adopted in which a screw is screwed onto the outside of the top of the core and a nut screwed onto the screw holds the top of the core, but the screw is exposed outside the cap and is unsightly. There are drawbacks.

The present invention aims to improve the above-mentioned drawbacks.

That is, the legs of the clip, which have protrusions that protrude toward the top of the clip, are inserted into the cap through the window holes provided on the sides of the cap, and a T-shaped holding piece whose overall length is longer than the window hole of the cap is formed. Insert the narrow part of the clip into the leg of the clip, insert the core provided with a front step and a rear step into the cap, and bring the rear step of the core into contact with the rear end of the holding piece. This is a structure for attaching a core to a cap of a writing instrument, in which the front step of the core is brought into almost contact with the front end of the protrusion of the clip.

The core is prevented from moving toward the top of the cap because the end surface of the holding piece inserted through the leg of the clip comes into contact with the rear step of the core. Since it almost contacts the front stage of the core, movement of the cap toward the opening is prevented, and the stop can be completely fixed.

An embodiment of the present invention will be explained with reference to the drawings.

The cap 1 has a bottomed cylindrical shape with an opening 2 at one end and a top 3 at the other end, and a rectangular window hole 5 is provided in the side 4.

The clip 6 is provided with a leg 8 having opposed bent portions 7 (FIG. 3), and the leg 8 is provided with a protrusion 10 which projects toward the top 9 and is bent outward.

The holding piece 11 has a wide part 1 that is longer than the width of the leg part 8 of the clip 6.
2 and a narrow part 13 shorter than the width of the leg part 8, and the overall length is longer than the length of the window hole 5 of the cap 1.

A recess 17 having a front step 15 and a rear step 16 is provided on the outer surface of the core 14.
The length of the core 14 in the axial direction is, when the narrow part 13 of the holding piece 11 is inserted into the leg part 8 of the clip 6 and the wide part 12 of the holding piece 11 is in contact with the leg part 8. The length of the end face of the wide portion 12 and the end face of the protrusion 10 of the clip 6 is approximately equal.

A convex portion 18 is provided on the inner surface of the core 14 .

The leg portion 8 of the clip 6 is inserted into the cap 1 through the window hole 5 of the cap 1, and the narrow portion 13 of the holding piece 11 is inserted into the cap 1 through the window hole 5 of the cap 1.
The wide part 12 and the narrow part 13 are in contact with the inner surface of the cap 1 , and the wide part 12 is in contact with the leg part 8 of the cap 1 .

Insert the core 14 from the opening 2 of the cap 1, and
The outer surface of the tip 19 of the clip 6 contacts the protrusion 10 of the clip 6,
Push up the protrusion 10 so that the front step 15 of the core 14 is aligned with the protrusion 1.
0, the protrusion 10 enters the recess 17.

The rear step 16 of the core 14 contacts the end surface 12' of the wide portion 12 of the holding piece 11, and the end surface 10' of the protrusion 10 of the clip 6 almost contacts the front step 15, so that the clip 6
is attached to cap 1.

The bullet support body 21 having the bullet support body 20 is inserted into the opening 2 of the cap 1.
The elastic support body 21 is fixed by inserting it further and making it collide with the open end 22 of the core 14.

A recess 24 is provided on the front outer surface of the barrel 23 of the fountain pen, and when the barrel 23 is inserted into the cap 1, the recess 24 of the barrel 23
4 engages with the convex portion 18 of the core 14, and the elastic support body 2
The first bullet support 20 springs and holds the outer surface of the shaft cylinder 23.

By using a clip with a protrusion on the leg and a T-shaped holding piece, the core can be easily fixed to the cap with a simple structure without using screws.
Furthermore, a cap with an excellent design can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a cap according to an embodiment of the present invention;
Figure 2 is a sectional view taken along line 2-2 in Figure 1, and Figure 3 is a sectional view taken along line 3-2 in Figure 1.
FIG. 4 is a cross-sectional view with the three-line core omitted, and FIG. 4 is a side view of a portion of the cap shown in FIG. 1 in which a fountain pen is inserted. 1... Cap, 4... Side part, 5... Window hole, 6...
...Clip, 8...Legs, 9...Top, 10...
・Protrusion, 11... Holding piece, 12... Wide part, 13.
... Narrow part, 14 ... Core, 15 ... Front step, 1
6... Rear stage, 21... Ballistic support body, 23... Shaft cylinder.

Claims (1)

[Scope of utility model registration request] The leg part 8 of the clip 6, which has a protrusion 10 protruding toward the top 9 of the clip 6, is inserted into the cap 1 through the window hole 5 provided in the side part 4 of the cap 1. Insert the T-shaped holding piece 110 and the narrow part 13 into the leg part 8 of the clip 6, and insert the narrow part 13 into the leg part 8 of the clip 6. Terrace 15
The core 14 with the rear step 16 is inserted into the cap 1, and the rear step 16 of the core 14 is inserted into the wide part 12 of the holding piece 11.
A structure for attaching a core to a cap of a writing instrument, in which the front step 15 of the core 14 is brought into substantially contact with the end surface 10' of the protrusion 10 of the clip 6.