JP2599464Y2 - Writing implement with seal - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing implement with a seal having a writing body at a front end thereof and a seal being removably fitted at a rear part.

[0002]

2. Description of the Related Art Conventionally, there has been provided a knock mechanism comprising a cam groove, a knock bar and a rotary cam member. Knock-type ballpoint pens that appear and disappear from the front are known. Further, there is known a seal unit which is detachably attached to a knock mechanism directly or via a holder and is positioned so as to protrude from a rear end of a shaft cylinder.

[0003]

However, in the conventional one, when the user grips the back of the barrel and makes a seal, the knocking mechanism interlocks and the writing tip part is inadvertently protruded or retracted from the tip end of the front spindle. Is set to In addition, because the knock cover that protects the stamp surface is fastened directly to the seal,
There is also a problem that the seal is removed together with the knock mechanism when the knock cover is removed. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to enable a cap for mounting a seal unit to be securely fastened to a knock mechanism by an easy means.

[0004]

In order to achieve the above-mentioned object, a writing instrument with a seal of the present invention devised to achieve the above object is provided with a knock mechanism in a rear inner hole of a center shaft and an inner hole of a cap. The engaging cylinder is formed integrally, and the engaging part is fixed to the engaging part provided at the rear end of the knock mechanism part using elastic deformation, and the cap is attached to the center shaft via a coil spring. On the other hand, a writing tool such as a ball-point pen is arranged in front of the knock mechanism, and a writing tool such as a ball-point pen works together with the knock mechanism when the cap is moved back and forth with respect to the center shaft. A writing instrument in which the knock mechanism is locked at a retracted position with respect to the center shaft so that the writing tip is in a retracted state from the tip end of the shaft. Provided with a printed body having ink through holes having a through hole Unit with is detachably attached, the knock cover to the rear end outer peripheral portion of the cap, characterized in that locked detachably.

[0005]

FIG. 1 shows an embodiment of the present invention. First,
As shown in the figure, the cap 1 is a cylindrical body and has a partition 9 in an inner hole.
The engaging cylinder 10 is provided in front of the engaging cylinder 10 and has a protruding step at the front of the engaging cylinder 10 so as to face a slit 38 provided at a predetermined position of the partition 9. Provided engaging portion 11 is provided. Also, a rib-like stepped portion 37 is provided at a required portion in front of the partition portion 9. Further, a fitting cylindrical portion 12 to be described later is provided behind the partition portion 9, and an engaging portion 13 including a groove and a protrusion is provided on the outer peripheral portion of the rear end of the cap 1. It is formed with.

The center shaft 2 has a step 26 at the rear end of the inner hole, a cam groove 3 on the front inner wall, and an engaging portion 27 having a screw or a projection and a groove at the outer periphery at the tip. And are formed of an integral resin molded product. A cam portion 5 formed in front of the knock bar 4 is fitted into the cam groove 3 so that the knock bar 4 can be moved back and forth with respect to the center shaft 2. A rotary cam member 6 having a cam portion 7 which is in contact with the tip of the cam groove 3 is also provided so as to be in contact with the cam groove 3.

The knock mechanism having the above-described structure is formed in a manner similar to that widely known as a Kahn-type knock mechanism. A cylindrical shaft portion 25 whose rear end is closed is extended behind the rotary cam member 6, and the shaft portion 25 is formed in a center hole of the shaft portion 23 which also extends rearward of the knock rod 4. The rotary cam member 6 is fitted, and the rotation of the rotary cam member 6 is shifted in the appropriate range with respect to the knock bar 4 and the rotation cam member 6 is free to rotate. Is provided with a retaining engagement portion (not shown) which is regulated by the contact of the contact.

A groove-shaped engaging portion 24 is formed on the outer peripheral portion of the rear end of the knock bar 4. As described above, the engagement portion 11 of the engagement cylinder portion 10 is maintained in a state where the coil spring 8 is biased between the rear end surface of the center shaft 2 and the step portion 37 of the cap 1.
The engagement portion 24 of the knock bar 4 is locked by the mutual elastic deformation, so that the knock bar 4 and the cap 1 are fixed. The shapes of the engaging portion 11 and the engaging portion 24 can be interchanged.

A rear end portion of a writing body 31 such as a ball-point pen is attached to an inner hole of the shaft portion 25 of the rotary cam member, and a rear end abuts a crimp 33 formed on the tube 32 so that a return spring 36 is provided. A front shaft 28 provided with a concave or convex engagement portion 29 of the central shaft 2 and having a concave or convex engagement portion 29 which is elastically engaged with the inner hole portion.
Is fixed, and the front end of the return spring 36 is in contact with the rib-shaped step 35 on the front side of the front shaft 28, whereby the writing body 31 such as a ball-point pen is constantly urged rearward.

The seal unit 17 has a printing body 18 placed on the front surface of a mounting table 20, and the outside thereof is covered with a cover 39, and the cover 39 is fixed to the rear shaft 21 of the mounting table 20. Further, the fitting cylinder portion 12 of the cap 1 is fitted into the front inner hole portion of the mounting base 20 by frictional engagement as appropriate, and the seal stamp unit 17 is coupled to the rear end of the cap 1. In addition, the seal unit 17 attaches the front shaft portion 22 of the mounting base 20 to the cap 1.
It is also possible to freely engage with and attach to the rear end hole. Further, the printing body 18 is made of a printing material having porous through holes and capable of impregnating ink, and a printing surface 1 such as a name is provided on the front surface of the printing body 18.
9 is engraved. If necessary, an ink occluding body and a cushion are provided between the printing body 18 and the rear end of the mounting table 20.

A knock cover 1 having an engaging portion 14 'at the rear end of the cap 1 for detachably engaging with the engaging portion 13 is provided.
4 is fitted so as to cover the stamp surface 19. In this case, the relationship between the grooves and the protrusions may also be interchanged in the engagement portion. The knock cover 14 is provided with a clip 16 on the side surface thereof.
At the rear end, a transparent crown 15 is fixed. In addition, a display board (not shown) in which the name of the seal and the like are written is inserted into the gap 15 ｀ formed at that time.

[0012]

The writing instrument with a seal stamp according to the embodiment of the present invention is constructed as described above. The seal unit 17 is detachably attached to the rear end of the cap 1 so that the cap 1 can be gripped to form a predetermined document. Seal. Since the knock cover 14 is fitted to the cap 1 in a non-contact state with the seal unit 17, the seal unit 1 is inadvertently removed when the knock cover 14 is removed.
There is no problem that 7 comes off. In addition, the writing tip 34 of the writing body 31 such as a ball-point pen protrudes and retracts from the tip opening 30 of the front shaft 28 by the forward and backward movement of the cap with respect to the center shaft 2.

[0013]

[Effects of the Invention] The construction and operation of the writing implement with a seal of the present invention are as described above. Since the cap is gripped and stamped, there is no problem that the writing tip is knocked out and the writing tip inadvertently appears. Also, there is no problem that the seal unit is accidentally detached from the cap when the knock cover is detached. Also,
This has the effect that the knock mechanism and the cap can be firmly fastened by a simple assembling method.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, showing a state in which a writing tip of a ballpoint pen is stored from a tip end of a front shaft.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 2 Center shaft 3 Cam groove 4 Knock rod 5 Cam part 6 Rotating cam member 7 Cam part 8 Coil spring 9 Partition part 9 ｀ Partition part 10 Engagement cylinder part 11 Engagement part 12 Engagement cylinder part 13 Engagement part 14 Knock Cover 14 ° Engagement part 15 Crown 15 ° Gap 16 Clip 17 Seal unit 18 Print body 19 Stamp surface 20 Mounting base 21 Rear shaft part 22 Front shaft part 23 Shaft part 24 Engagement part 25 Shaft part 26 Step part 27 Engagement part 28 Tip Shaft 29 Engagement Part 30 Tip Port 31 Writing Body such as Ballpoint Pen 32 Tube 33 Crimp 34 Writing Tip 35 Step 36 Return Spring 37 Step 38 Slit 39 Cover

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B43K 29/013 B41K 1/02 B43K 21/00

Claims (1)

(57) [Scope of request for utility model registration] A knock mechanism is disposed in a rear inner hole of a center shaft, and a partition is integrally formed with an inner hole of a cap.
And an engaging cylinder portion is provided in front of the partition.
Tip of the engaging cylinder part facing the slit provided in the predetermined part of the part
An engaging portion having a projecting step is provided on the other side, and the engaging portion is stopped by utilizing elastic deformation at a groove-shaped engaging portion provided at the rear end of the knock mechanism portion. Wearing, the cap is made axially movable with respect to the center shaft via a coil spring,
Further, a writing body such as a ballpoint pen is disposed in front of the knock mechanism, and when the cap is moved back and forth with respect to the center shaft, the writing body such as a ballpoint pen is interlocked with the knock mechanism, and the writing tip from the tip end of the front shaft. A writing mechanism wherein the knock mechanism portion is locked at an advanced / retracted position with respect to the center shaft so that the cap is in a retracted state, wherein the rear end hole of the cap has an infinite number of porous through holes. A writing implement with a seal, wherein a seal unit having a printing body which can be impregnated with ink is removably mounted, and a knock cover is removably engaged with an outer peripheral portion of a rear end of the cap.