JP2607084Y2 - 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 an improvement in a writing implement with a seal having a writing body on the front side and a seal on the rear side.

[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 prior art, when the user grips the back of the barrel and performs the stamping, the knocking mechanism interlocks and the writing tip protrudes or retracts from the tip end of the tip shaft carelessly. Is set to In addition, there is a disadvantage that it is difficult to stamp since the seal is axially shifted by pressing. Then, this invention aims at solving such a defect.

[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 front inner hole of a cap and a stopper in front of the cap. A writing body such as a ball-point pen is disposed in front of the knock mechanism in the attached front shaft, the holder is fixed to the rear inner hole of the cap, and the seal is properly projected from the rear end of the cap. Fixed to the end, the slider is mounted on the holder so that only the axis can move, and connected so as to interlock with the knock mechanism, and the knock cover is fixed to the slider with the seal covered, and the axis of the knock cover The transition allows the writing tip to be locked in a protruding state from the tip end of the tip shaft.

[0005]

1 to 3 show an embodiment of the present invention. First, as shown in the figure, the cap 1 is composed of a front shaft 2 and a rear shaft 3. The cap 1 is a cylindrical body, and a screw portion 2b is provided at the front end of the front shaft portion 2 and a projecting locking portion 2c is formed on the outer periphery of the rear end. A window 3d penetrating from the inner hole is formed on the front surface. A cam groove 2a is formed at the rear end of the inner hole of the front shaft portion 2, and a step 3b is provided at the rear end of the cam groove 2a.
A clip 3c is provided on a rear side surface of the rear shaft portion 3. Further, a stepped portion 3 a is formed in a rib shape on a peripheral wall in front of the inner hole portion of the rear shaft portion 3. A knock rod 4 is provided in the cam groove 2a.
The knock bar 4 is fitted to the front shaft portion 2 so as to freely move back and forth with the cam portion 5 formed on the front side of the cam portion 5, and the cam portion 9 which is in contact with the tip of the cam portion 5 is provided on the entire surface of the knock bar 4. The rotary cam member 7 having the above configuration is also provided so as to be in contact with the cam groove 2a.

[0006] 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 8 extends behind the rotary cam member 7, and the shaft portion 8 is fitted into a center hole of the shaft portion 6 also extending rearward of the knock rod 4, The member 7 is axially shifted with respect to the knock bar 4 within an appropriate range, and is restricted by the projections abutting between the outer peripheral portion of the shaft portion 8 and the center hole of the knock bar 4 so as to be freely rotatable. An engaging portion (not shown) is provided for the retaining member. The reason why the convex portion is provided will be described later, but it is to prevent the rotary cam member 7 from falling off when the tip shaft 14 is detached from the cap 1 and the writing body is pulled out.

[0007] As shown in FIG. 3, the holder 11 has two guide pieces 11a extending long forward.
A guide groove 11b is formed between a and a, and a locking piece 11c provided with a window hole-shaped locking portion 11d is provided at the tip of the guide piece 11a, and an appropriate slit is provided at the rear of the holder 11. An elastically displaceable fitting cylinder 11e is provided, and is formed of an integral resin molded product having excellent elasticity.

The slider 12 has a cylindrical receiving portion 12a at a front center portion, a partition portion 12b having a slit portion 12c on the outer periphery thereof, and a rear fitting cylindrical portion 12a.
An engaging portion 12e formed by a groove, a protrusion, and the like is provided on the outer periphery of d.

As described above, the slider 12 is mounted on the holder 11 such that the guide piece 11a of the holder 11 is fitted in the slit portion 12c so as to be axially movable, and the rear end of the coil spring 10 is brought into contact with the front surface of the partition portion 12b. The cap 1 is fitted in the inner hole of the rear shaft portion 3 in the contact state, the front end of the coil spring 10 is brought into contact with the step 3b of the rear shaft portion 3, and the locking piece 11c of the holder 11 is connected to the window portion. The window-shaped engaging portion 11d is fitted to the protruding engaging portion 2c of the front shaft portion 2 by penetrating through 3d. At this stage, the holder 11 is fixed in the rear shaft portion 3, and the slider 12 is supported by the holder 11 so that only the shaft can move. In the next stage, the center shaft 13 is fitted to the outside of the front shaft portion 2 to clamp the locking portion , so that the fixed state of the rear shaft portion 3 and the holder 11 is firm.

In the assembling sequence, at this stage, the knock bar 4 and the rotary cam member 7 are fitted in the front shaft portion 2 and provided at a portion protruding from the rear end of the shaft portion 6 of the knock bar 4. The engaging portion 6a is appropriately engaged with an engaging portion (not shown) provided in the inner hole of the receiving portion 12a of the slider 12, and the slider 12 and the knock bar 4 (therefore, the knock mechanism) are connected so as to interlock. Is done. Further, since the knock bar 4 and the rotary cam member 7 are prevented from coming off by the engagement of the convex portions, the rotary cam member 7 does not fall off when the writing body is pulled out as described above.

A rear end portion of a writing body 24 such as a ball-point pen is mounted in an inner hole of the shaft portion 8 of the rotary cam member 7, and a rear end of the writing member 24 abuts a crimp 25a formed in the tube 25 so that a return spring 27 is formed. Is attached, and the screw portion 2b of the front shaft portion 2 of the cap 1 is provided with a screw portion 14a (which may be an elastic engaging portion capable of locking between them) in the inner hole portion. 14 is fixed, and the front end of the return spring 27 is
And the writing body 24 such as a ball-point pen is constantly urged rearward.

The seal 20 is provided on a rear shaft 21 of a mounting table 21.
The printed body 22 is placed on the rear surface of the rear part c, and the outside is covered with a cover 23, and the cover 23 is fixed to the rear shaft part 21c.
Further, the fitting cylinder 11e of the holder 11 is fitted into the hole of the front shaft portion 21a of the mounting base 21 by frictional engagement as appropriate, and the stamped surface 22a is attached so as to protrude from the rear end of the cap 1 as appropriate. Further, the printing body 22 is made of a printing material having a porous through hole and capable of impregnating ink, and a printing surface 22a such as a name is engraved on the front surface of the printing body 22. Further, an ink occluding body and a cushion are provided between the printing body 22 and the rear end of the mounting table 21 as necessary.

A knock cover 1 having an engaging portion (not shown) at the rear end of the cap 1 for detachably engaging with an engaging portion 12e provided on a fitting cylindrical portion 12d of the slider 12.
5 covers the seal 20 and is fixed. In this case, the engaging portion may also be formed of a mutual protrusion and a protrusion or a groove and a protrusion, and the relationship may be interchanged. By the way, in the case of the present embodiment, the knocking cover 15 is elastically displaceable in the diameter-reducing direction by a notch 16b on the rear outer periphery of the cylindrical body 16 made of metal or the like.
And a crown 17 having a rib 17a fitted in the notch 16b in the inner hole and a projection 17b fixed to the window 16a.
And a seal 18 on which a name or the like can be written is placed on the rear end of the crown holder 17 and a transparent crown 19 is fixed thereto.

[0014]

The writing implement with a seal as an embodiment of the present invention is constructed as described above.
Are appropriately projected and fixed, and the knocking operation is not performed even if the stamp surface is pressed during the stamping. When the knock cover 15 is fixed to the slider 12, if the rear end of the knock cover 15 is pressed, the slider 12 moves in conjunction with the knock mechanism, and the writing tip 26 of the writing body 24, such as a ballpoint pen, moves to the tip of the front shaft 14. It emerges from the end opening 14d. Further, since the knock cover 15 is configured to be fixed to the slider 12 in a non-contact state with the seal 20, it is possible to prevent a problem that the seal 20 is inadvertently removed due to detachment of the knock cover 15.

[0015]

[Effect of the Invention] The construction and operation of the writing implement with a seal of the present invention are as described above, and there is no problem that the tip of the writing is inadvertently protruded and retracted during knocking. In addition, since the seal does not change axially when pressed, it is easy to seal. Further, there is an effect that there is no problem that the seal is accidentally detached from the cap due to detachment of the knock cover.

[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.

FIG. 2 is a longitudinal sectional view showing the embodiment of the present invention, in which a writing tip of a ballpoint pen is projected from a tip end of a front shaft.

FIG. 3 is a perspective view showing part development of the writing instrument with a seal as an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 2 Front shaft part 2a Cam groove 2b Screw part 2c Locking part 3 Rear shaft part 3a Step part 3b Step part 3c Clip 3d Window part 4 Knock rod 5 Cam part 6 Shaft part 7 Rotating cam member 8 Shaft part 9 Cam part DESCRIPTION OF SYMBOLS 10 Coil spring 11 Holder 11a Guide piece 11b Guide groove 11c Lock piece 11d Lock part 11e Fitting cylinder part 12 Slider 12a Receiving part 12b Partition part 12c Slit part 12d Fitting cylinder part 12e Engaging part 13 Center axis 14 Front axis 14a Screw portion 14b Rib 14c Step 14d Tip opening 15 Knock cover 16 Cylindrical body 16a Window 16b Notch 17 Crown holder 17a Rib 17b Projection 18 Seal 19 Crown 20 Seal 21 Mounting stand 21a Front shaft 21b Rear flange 21c Part 22 printed body 22a stamped surface 23 cover 24 writing body such as ballpoint pen 25 tube 25a crimp 26 writing tip 27 return spring

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A 6-67087 (JP, U) JP-A 60-119590 (JP, U) JP-A 60-119591 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) B43K 29/013-29/02

Claims (1)

(57) [Scope of request for utility model registration] 1. A seal provided behind a cap, wherein the seal is
The front shaft is fastened to the front of the
The mechanism is arranged and the ball is in front of the knock mechanism.
In a writing implement with a seal, where a writing body such as a pen is arranged,
A locking part is provided at the front end of the guide piece that extends forward of the holder
The engaging portion is engaged with the engaging portion provided on the cap.
The holder in the inner hole of the cap.
At that time, the guide piece is fitted to the slider
Armored to allow the rider to change only the axis of the holder
And connected so as to interlock with the knock mechanism
With the seal properly protruding from the rear end of the cap.
While being fixed to the rear end of the
A writing implement with a seal, wherein the knock cover is fixed to the slider, and the writing tip is locked so as to be able to protrude and retract from the tip opening of the front shaft by changing the axis of the knock cover.