JPH067989U - Knock type marker writing instrument - Google Patents

Abstract

(57) [Summary] [Purpose] A writing instrument can be used easily even if one hand is blocked by luggage without losing the cap. [Structure] Centering the spindle 2 at the tip of the main body shaft 1. A rotatable cap 3 is attached, an inner shaft 6 having a knock portion 5 is fitted in the main body shaft 1, and an opening portion of the cap 3 or the inner shaft 6 is attached.
The first contact portion 10 and the second contact portion 11 at either of the front ends of the
Is provided, the engaging step portion 13 is provided on the support shaft portion 12 of the cap 3, and the engaging protrusion 14 is provided on the center shaft 6 in a protruding manner.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a writing instrument having a cap such as a ballpoint pen and a marking pen, and relates to a writing instrument that can open the cap by pressing a knock portion.

[0002]

[Prior art]

 In the cap of this type of writing instrument in the past, the cap and the main body shaft are separate bodies.When using the writing instrument, put the cap body on the tail end of the main body shaft or leave the cap body on a desk or the like. I often keep it.

[0003]

[Problems to be solved by the device]

 However, it is troublesome to put the cap body on the tail end of the main body shaft, and the cap body tends to be left alone, the cap body is lost, and the ink evaporates depending on the writing instrument. However, I was sometimes unable to write and had to discard my writing implements. Also, when one hand is blocked by luggage or the like, even if you try to remove the cap to use a writing instrument, it may be difficult to remove it with one hand, and the cap may be bitten with your teeth, but it is extremely unhygienic. Target.

[0004]

[Means for Solving the Problems]

 The knock-type marker writing instrument according to the present invention solves the above-mentioned problems, in which a rotatable cap is attached to the tip of the main body shaft, and a center shaft having a knock portion is fitted in the main body shaft. The first contact portion and the second contact portion are provided at either the opening of the cap or the front end of the center shaft, the locking step is provided at the support shaft of the cap, and the locking protrusion is provided at the center shaft. It will be.

[0005]

【Example】

 The knock-type marker writing instrument according to the present invention will be described in more detail with reference to an embodiment shown in the drawings. FIG. 1 is a cross-sectional view of the knock-type marker writing instrument according to the present invention when not in use, which is provided at the tip of a cylindrical body shaft 1. A cap 3 that opens and closes by rotating around the support shaft 2 is attached to the support shaft 2 of the main body shaft 1, and a center shaft 6 having a pen tip 4 at the tip and a knock portion 5 at the rear is attached, A spring 9 is fitted between a protrusion 7 provided on the inner wall of the main body shaft 1 and a step portion 8 provided at the rear of the center shaft 6. Further, as shown in FIGS. 1 to 4, the first contact portion 10 is provided on one of the front ends of the outer surface of the center shaft 6, the second contact portion 11 is provided on the other end, and the support shaft portion of the cap 3 is provided. 12 is provided with a locking step 13, a locking projection 14 is projected slightly rearward from the front end of the center shaft 6 on the support shaft side of the cap 3, and a tail plug 15 is fitted to the rear end of the main body shaft 1. It will be. Then, when using the writing instrument, by pressing the knock part 5, the first contact part 10 of the center shaft 6 contacts the one end 16 of the opening part of the cap 3 and pushes it up, and further presses it. As a result, the second contact portion 11 of the center shaft 6 contacts the other end 17 of the opening of the cap 3, pushes up the cap 3, the cap 3 rotates about the support shaft 2, the cap 3 is further opened, and the knock portion is further released. By pressing 5, the front end of the locking projection 14 of the center shaft 6 is locked to the locking step 13 of the support shaft 12 as shown in FIG. When the pressing is released, the center shaft 6 returns to the main shaft 1 as shown in FIG. 4, and the rear end of the step portion 8 of the center shaft 6 comes into contact with the front end of the tail plug 15 to enable writing.

Also, as shown in FIG. 5, the front end surface of the center shaft 6 is provided in parallel, and a step portion is provided on the side of the support shaft portion 12 in the opening portion of the cap 3 to form the second contact portion 11. Is the same as.

[0007]

[Effect of device]

 With the above-described configuration, the knock-type marker writing instrument according to the present invention has the cap and the main body shaft connected to each other, so that the cap is not lost and the cap can be opened and closed with one hand. Therefore, it is possible to easily use a writing instrument even if one hand is blocked by luggage or the like.

[0008]

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a knock-type marker writing instrument according to the present invention when not in use.

FIG. 2 is a cross-sectional view showing a state where the knock portion is slightly pressed in the knock-type marker writing instrument according to the present invention.

FIG. 3 is a cross-sectional view showing a state where the knock portion is further pressed as compared with the state of FIG.

FIG. 4 is a cross-sectional view showing a writable state in the knock-type marker writing instrument according to the present invention.

FIG. 5 is a cross-sectional view of a second embodiment of the knock-type marker writing instrument according to the present invention in a non-use state.

[Explanation of symbols]

 1 Body Shaft 2 Support Shaft 3 Cap 4 Pen Point 5 Knock 6 Middle Shaft 7 Body Shaft Projection 8 Middle Shaft Step 9 Spring 10 First Abutment 11 Second Abutment 12 Cap Shaft 13 Locking Step Part 14 Locking protrusion 15 Tail plug 16 One end of cap opening 17 The other end of cap opening

Claims (1)

[Scope of utility model registration request] 1. A center shaft having a pen tip at the tip and a knock portion at the rear is fitted into a body shaft having a cap that rotates around a support shaft provided at the tip of the body shaft via a spring. A first contact portion and a second contact portion are provided at either the opening portion of the cap or the front end of the center shaft, and the locking step portion is provided at the support shaft portion of the cap, and the support shaft of the cap in the center shaft. Knocking marker writing instrument with a locking projection protruding slightly rearward from the front end on the side and a tail plug fitted on the rear end of the main body shaft.