JP3273872B2 - 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 seal stamp using a printing body made of a porous printing material having a myriad of continuous pores.

[0002]

2. Description of the Related Art Conventionally, it is not necessary to use a printing material formed of a porous stamping material having an infinite number of continuous pores such as sponge rubber so as to absorb ink, and to attach it to vermilion every time it is used. Seals are known. This type of seal, which is commercially available, is composed of an ink occluding body and a printing body impregnated with ink, and when frequently used, the ink runs out quickly and ink needs to be replenished each time. Further, there is a disadvantage that the printing density becomes lower as the number of times of stamping increases. In addition, when replenishing ink, a large amount of ink cannot be replenished at one time since the ink is dropped on the printing surface with a dropper or the like to impregnate the ink. Also, it takes time for the printing surface to be uniformly impregnated with the sticky ink. In addition, when the ink is dropped, the ink overflows from the printing surface, causing a problem of soiling the hands and surroundings.
Therefore, as a method for solving such disadvantages and problems, Japanese Utility Model Publication No. Sho 61-23410 discloses a method in which ink is supplied from an ink cartridge using an ink flow regulator such as a writing instrument. However,
In the seal of the above structure, when the seal is left with the seal facing downward, the amount of ink impregnated at the lower part of the seal increases due to gravity, the ink flow rate at the time of sealing increases, the drying of the seal becomes slow, and the problem of rubbing and soiling occurs. There is a problem that the seal imprints after a while.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to increase the ink impregnation amount at the lower portion of the stamp surface due to gravity when the stamp surface portion is left standing, and to increase the ink flow rate at the time of stamping to dry the stamp. The problem is to solve the problem of being late, rubbing and soiling, and the problem of imprint blurring after a long time.

[0004]

Means for Solving the Problems A seal according to the present invention devised to achieve the above-mentioned object has an ink storage section at an upper portion of a cylinder, and an infinite number of cartridges housed in a holder at a lower portion of the cylinder. The porous printing surface, which has continuous pores and can be impregnated with ink, is urged downward by a spring so that it can move up and down, and is housed. so that a porous core body abuts to induce,
An appropriate gap is provided between the upper layer portion of the printing surface and the porous core body , a large number of blades, a gap is provided between the blades and a vertical groove is formed on the side surface, and Is provided between the ink holding part and the porous core for guiding the ink, and has an ink flow controller having an ink guide hole extending from the upper end to the lower end, and the upper layer and the lower layer of the printing surface have the ink transmission resistance. It is characterized by being formed differently.

[0005]

FIG. 1 shows an embodiment of the present invention. First,
As shown in the figure, the ink flow controller 1 includes a number of blades 2,
A gap 3 is provided between the blades, and a relatively wide thick groove 4 communicating in the axial direction and a narrow groove 5 forming a fine slit are formed on two side surfaces facing each other. ,
The narrow groove 5 is formed as a fine slit communicating with the groove opened from the upper part, and at least the blade 2b above the lowermost blade 2a is formed as a non-communication part. A notch 6 is formed in the lowermost blade 2a substantially on the same line as the narrow groove 5. A core 8 is inserted below the ink guide hole 7 formed in the axis of the ink flow controller 1, and a relay core 9 is inserted above the ink guide hole 7.

An ink 11 is stored in the ink tank 10, and an ink flow regulator 1 is fitted below the ink tank 10. The shaft portion 13 is fitted to the ink tank 10 by abutting an inner step 14 located above the shaft portion 13 with a flange portion 12 provided outside the ink tank 10. A front shaft 16 having a hole 15 is screwed. The tip shaft 16 is vertically movable within the tip shaft 16.
The slider 17 is housed by contacting the step 18 of the slider 17 with the inner step 14 of the slider 17 and a spring 19 is stretched between the flange 12 of the ink tank 10 and the slider 17. Holder 23 having porous stamped surface portion 20 having pores and ink impregnation therein
Is installed.

The imprint portion 19 is composed of a lower layer 21 for forming a character to be stamped and an upper layer 22 having a higher ink transmission speed than the lower portion 21.
A gap 24 is provided between the core 2 and the core 8 as appropriate.

A seal cap 25 is fitted below the tip shaft 15 to protect the stamp face 20.

[0009]

The seal of the present invention is configured as described above.
When stamping, remove the seal cap 24 and
Then, the front shaft 15 is gripped and the lower end of the stamping surface portion 20 is pressed against a document or the like to be stamped. At that time, the slider 17 retreats against the spring 19 with the consumption of the ink on the stamp face portion 20, and
When the upper surface portion 22 of the stamp surface comes into contact with the core 8, the ink tank 10
The ink 11 in the inside penetrates into the upper surface portion 22 of the stamp face via the core body 8 and is supplied to the stamp face section 20. In that case, it is necessary to replace the air in the ink tank 10. The air to be replaced passes through an air flow hole 15 provided on the side surface of the front shaft 16,
The notch 6 of the ink flow controller 1 enters the thick groove 4 and
Through the narrow groove 5 and into the ink tank 10 from the groove at the upper end.

By the way, the role of the ink flow regulator 1 is as follows.
The ink is sequentially supplied to the core body 8 to replace the air corresponding to the consumed ink in the ink tank 1, and the ink in the ink tank 10 expands and the extruded ink is increased when the temperature rises. The ink held in the gap 3 is held in the gap 3 and the ink held in the gap 3 is collected in the ink tank 10 when the temperature drops.

When the ink runs out, the screwing of the shaft 13 is released, and the ink tank 10 is removed from the front shaft 16 and replaced.

[0012]

The configuration and operation of the seal of the present invention are as described above, and the ink becomes insufficient following continuous stamping.
Printing density does not decrease, printing can be performed without any trouble until ink is used up, and the printing life is long. In addition, the mechanism of the ink flow rate control body works smoothly, and it is possible to prevent the appropriate dropping of the ink and the accident such as the ejection of the ink due to the temperature change. Also, even if the stamp face is left facing down, ink is not excessively supplied to the stamp face,
The problem that the amount of ink at the time of stamping becomes large and the paper or the like is smeared by rubbing and the problem that the imprint blurs is improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view of the blade of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 ink flow regulator 2 blade 2a blade 2b blade 3 gap 4 thick groove 5 narrow groove 6 notch 7 ink guide hole 8 core body 9 relay core 10 ink tank 11 flange 12 ink 13 shaft 14 inner step 15 tip shaft 16 Air flow hole 17 Slider 18 Step 19 Spring 20 Stamping surface 21 Lower layer 22 Upper layer 23 Holder 24 Gap 25 Seal cap

Continuation of the front page (72) Inventor Kazuhiro Fujio 2-5-12 Irie, Kanagawa-ku, Yokohama-shi, Kanagawa Pref. Examiner, Yokohama Works, Mitsubishi Pencil Co., Ltd. Toshihiko Nakazawa (56) Reference Reference (58) Fields surveyed (Int. Cl. ⁷ , DB name) B41K 1/52 B41K 1/50

Claims (3)

(57) [Claims] 1. A porous printing surface having an ink retaining portion in an upper portion of a cylinder and an infinite number of continuous pores accommodated in a holder in a lower portion of the cylinder and capable of impregnating ink, is moved up and down. The upper part of the printing surface is freely urged downward by a spring so that the upper part of the printing surface comes into contact with the porous core for guiding ink from the ink storage part when the printing surface is moved upward.
A seal , wherein a gap is provided between the core and the porous core . 2. An ink flow control body having a number of blades, a gap provided between the blades, a vertical groove formed in a side surface, and an ink guide hole having an ink guide hole extending from an upper end to a lower end in a shaft center. 2. The seal according to claim 1, wherein the seal is provided between the holding portion and a porous core for guiding ink. 3. A seal according to claim 1 or 2, characterized in that the upper portion and the lower portion of the printing surface is formed so as to differ the transmission resistance of the ink.