JP2592178Y2 - 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 seal stamp in which high-viscosity ink is caused to flow out to a stamp surface by using a pressing force applied to the stamp surface.

[0002]

2. Description of the Related Art Conventionally, there has been known a seal which does not need to attach ink every time it is used by using a rubber print body having countless continuous pores capable of storing a large amount of ink.
There is also known a material in which a printed body is formed by firing a material such as ceramics, glass ceramics, and metal into a porous shape having countless continuous pores.

[0003]

The above-mentioned rubber printing body has a performance of discharging ink by being deformed by pressing at the time of stamping, because the printing body made of rubber itself has elasticity.
Since a printed body made of metal or the like is itself a rigid body, ink is guided by a capillary phenomenon. Therefore, in a seal using a printed body made of ceramics, metal, or the like, the outflow of ink is unstable with respect to that made of rubber, and the ink followability is poor particularly in continuous stamping. In addition, the ink for seals using the porous printed body has a lower viscosity and a slower drying time than ink of vermilion or the like so as not to cause clogging of the printed body. Further, there is a disadvantage that the ink easily bleeds after stamping on the paper surface. Accordingly, an object of the present invention is to solve the above-mentioned drawbacks, and to provide a seal having a thick imprint such as a seal made of vermilion without bleeding, drying quickly.

[0004]

Means for Solving the Problems The seal of the present invention devised to achieve the above object has a joint having a printed body at the front end in front of the shaft cylinder. A first valve chamber is provided so as to move back and forth, and a valve body is normally in contact with a receiving seat by a spring and closely fitted in a joint behind the printing body, and further, a shaft cylinder is provided behind the valve body. A second valve chamber is provided in the inner hole at the tip of the valve so that the valve element is always in close contact with the receiving seat by a spring, and communicates with the guide hole further behind the valve element to accommodate high-viscosity ink. The ink container is provided in the shaft cylinder, and the printed body is made of a material having countless continuous pores capable of absorbing ink. In the seal having the above configuration, two valve bodies are alternately opened and closed by the forward and backward movement of the joint, and a proper amount of ink can be forcibly discharged to the stamp surface by a pumping action at the time of stamping.

[0005]

FIG. 1 shows an embodiment of the present invention. First,
As shown in the figure, the seal 1 is configured such that a joint 11 is connected to the front shaft portion 3 at the front of the barrel 2 so as to be able to move in the axial direction. The joint 11 has a step 18 at the end of the inner hole 15 and an inflow hole 19 is formed. A radial or disk-shaped gap 21 is formed in the distal end face of the joint 11 so as to communicate with the inflow hole 19, and a resilient ink derivative 34 having a large number of pores 35 on the front face thereof.
And a printed body 32 of porous ceramics, glass ceramics, metal, or the like having a myriad of continuous pores on its front surface is placed.
The cover 36 is covered in a state where the cover 2 is tightly packed.
Is fixed to the outer peripheral portion of the front end of the joint 11. By the way, the ink derivative 34 is tightly packed in the cover 36 to increase the pressurizing effect with the valve chamber, which will be described later, and to provide a cushioning effect at the time of stamping and an ink supply effect to the printing body 32 due to deformation at the time of stamping. Yes, but not required for configuration. Further, it is also possible to combine an ink having a higher viscosity by using a rubber print body.

[0006] A valve body 23 is provided behind the inflow hole 19 together with a bush 24 having a receiving seat 25 for closely contacting the tapered surface thereof. The bush 24 is fixed to the inner hole 15 of the joint 11 and A spring 29 is urged between the step portion 18 at the tip of the hole and the front surface of the valve body 23, and the valve body 23 is made movable forward, and a first valve is provided between the valve body 23 and the ink derivative 34. A chamber 22 is formed.

An inner hole 17 is provided at the rear end of the joint 11, a step portion 20 is provided, and a slightly smaller diameter inner hole 16 is provided in front of the joint portion. A small-diameter inner hole 15 is provided. A window 13 is provided on the side surface of the joint 11 located near the rear end of the inner hole 16 so as to penetrate the inner hole 16. Also, seal rings 27 and 28 are disposed on the front shaft portion 3 in front of the barrel 2 at required positions on the outer periphery, and projecting engagements behind the seal rings 27 corresponding to the window portions 13 are provided behind the seal rings 27 and 28. A part 4 is formed. The front barrel 3 is fitted into the inner hole 16 of the joint 11 in a state where the rear end of the return spring 31 is in contact with the step 5 behind the locking portion 4 of the shaft cylinder 2, and the front end of the return spring 31 is The engaging portion 4 is fitted into the window portion 13 by mutual elastic deformation, and the rear end of the engaging portion 4 is engaged with the step portion 14 at the rear end of the window portion. On the other hand, the joint 11 is prevented from falling back and forth.
At that time, the joint 11 can be retracted by the gap L between the stepped portion 12 and the tip of the barrel 2, and the front shaft portion 3 is inserted into the inner hole 16 in a state where the seal rings 27 and 28 can slide. Be close. The shaft cylinder 2 and the joint 11 are configured as a synthetic resin molded product from the mutual connection conditions. However, since there are various connection methods, the materials are not limited.

When the shaft cylinder 2 is connected to the joint 11, the tapered surface of the valve body 26 is brought into close contact with the tapered receiving seat 8 provided in the hole 7 at the front of the shaft cylinder 2 and the bush 24 A spring 30 is urged between the rear end of the valve body 26 and the front end of the valve body 26, and a second valve chamber 9 is formed between the valve body 23 and the valve body 26. By the way, in the above embodiment, the first and second valve bodies are provided in a tapered shape.
It is also possible to provide the valve element in a ball shape so as to be in close contact with the receiving seat.

The shaft cylinder 2 has a guide hole 10 at the rear of the valve body 26 and an ink container 6 at the rear. The ink container 6 is filled with high-viscosity ink, and a stirring ball for stirring the application liquid is loosely fitted. Further, the inside of the ink container 6 is appropriately pressurized, and the ink is filled in the valve chambers 9 and 22. When the stirring of the ink is not required, the rear end of the ink is filled with a grease-like follower that can move with the consumption of the coating liquid, and the rear end of the barrel is provided with a vent means for communicating with the outside air. Is provided. Alternatively, the rear end of the ink may be in a pressurized state or provided with a pressurizing means.
(Not shown)

[0010]

First, the ink is filled up to the valve chambers 9 and 22 in FIG. When the seal is pressed against the stamp face 33 in this state, the joint 11 is retracted L dimension from the shaft cylinder 2. At that time, the internal pressure in the valve chamber 9 rises and pushes up the valve body 23, and the ink flows into the valve chamber 22, and the ink is forcibly flown out to the print body 32 through the inflow hole 19, the gap 21, and the ink derivative 34. When the pressing is released, the joint 11 returns to the original state with respect to the shaft cylinder 2, so that the pressure in the valve chamber 9 is reduced. At this time, the ink is pushed up the valve body 26 and flows into the valve chamber 9 through the guide hole 10. Less than,
By repeatedly pressing and releasing the stamp surface 33 for each stamp, even if the ink is sequentially pumped and has a high viscosity, it is possible to reliably supply the ink to the stamp surface 33.

[0011]

[Effects of the Invention] The configuration and operation of the seal of the present invention are as described above. Since the ink is pumped by pressing and releasing the stamp surface, the ink of high viscosity can flow out without fail, and the bleeding and drying It is possible to quickly select an ink having a thick imprint such as vermilion. Also, if the ink supply is set to the transfer amount of the seal, the imprint will always be constant. However, there is no disadvantage that it does not follow and becomes thin. Further, if the ink container of the barrel is made transparent, there is an effect that the remaining amount of ink can be determined.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a seal which is an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seal 2 Shaft cylinder 3 Front shaft part 4 Locking part 5 Step part 6 Ink storage part 7 Hole part 8 Receiving seat 9 Valve room 10 Guide hole 11 Joint 12 Step part 13 Window part 14 Step part 15 Inner hole 16 Inner hole 17 Inner hole 18 Step portion 19 Inflow hole 20 Step portion 21 Gap 22 Valve chamber 23 Valve body 24 Bush 25 Receiving seat 26 Valve body 27 Seal ring 28 Seal ring 29 Spring 30 Spring 31 Return spring 32 Printing body 33 Printing surface 34 Ink derivative 35 Fine Hole 36 cover

Claims (1)

(57) [Scope of request for utility model registration] 1. A joint having a printed body at a front end thereof provided forward of a shaft cylinder so as to move back and forth within an appropriate range by pressing and releasing a stamp surface, and a valve body is always provided by a spring in a joint behind the printed body. There is provided a first valve chamber that abuts against the receiving seat and is closely fitted to the receiving seat by means of a spring in the inner bore at the tip of the shaft cylinder behind the valve body. A second valve chamber is provided, and an ink storage portion that stores high-viscosity ink in communication with the guide hole further behind the valve body is provided in the shaft cylinder, and the print body is capable of storing ink. A seal made of a material having countless continuous pores.