JPH074048U - Seal - Google Patents

Abstract

(57) [Summary] [Purpose] A stamp using high viscosity ink, which supplies ink to the stamp surface by pressing and releasing the stamp surface to create a thick imprint without bleeding. Allows the stamp to be provided. [Structure] A joint with a print body at the front end of the shaft cylinder is installed so as to move back and forth within an appropriate range by pressing and releasing the stamp face, and the valve body is normally received by a spring inside the joint behind the print body. A first valve chamber is provided which is brought into close contact with the seat and is fitted tightly. Further, a valve body is always brought into close contact with the receiving seat by means of a spring in the inner bore of the tip of the shaft cylinder behind the valve body. Two valve chambers are provided, and an ink containing portion containing high-viscosity ink, which communicates with the guide hole further behind the valve body, is provided on the shaft cylinder. It is made of a material having pores, and the valve body at two locations is alternately opened and closed by the forward and backward movement of the joint with respect to the shaft cylinder, so that ink can be supplied to the printing surface by the pumping action.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seal stamp that allows high-viscosity ink to flow out to a stamp surface by using pressure applied by the stamp surface.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there has been known a stamp that uses a rubber-made printing body having an infinite number of continuous pores capable of absorbing a large amount of ink and does not require ink to be attached each time it is used. It is also known that a printed material is formed by firing materials such as ceramics, glass ceramics, and metal into a porous material having innumerable continuous pores.

[0003]

[Problems to be solved by the device]

 The rubber print body has the ability to be deformed by the pressure applied during printing to eject ink, because the print body itself is elastic, but the print body made of ceramics, metal, etc. is itself a rigid body. Ink is induced by a capillary phenomenon. Therefore, a stamp using a printing body made of ceramics, metal or the like has a more unstable ink outflow than a rubber stamp, and has poor ink followability particularly in continuous printing. In addition, the ink for a seal stamp using the above-mentioned porous printing body has a lower viscosity and a slower drying time than ink such as red ink so as not to cause clogging of the printing body. In addition, there is a drawback that after printing on the paper surface, it easily bleeds. Therefore, an object of the present invention is to solve the above-mentioned drawbacks and to provide a seal stamp which has no bleeding, is fast-drying, and has a thick imprint like a seal made of red ink.

[0004]

[Means for Solving the Problems]

 The seal of the present invention devised to achieve the above object is provided with a joint having a print body at the front end of the shaft cylinder so as to move back and forth within an appropriate range by pressing and releasing the seal face. A first valve chamber is provided in the joint at the rear of the character body by a spring, where the valve body normally abuts on the seat and is tightly fitted, and further behind the valve body is a spring in the tip inner hole of the shaft cylinder. A second valve chamber is provided in which the valve element normally abuts against the receiving seat and is tightly fitted, and the ink accommodating portion, which communicates with the guide hole further behind the valve element and accommodates high-viscosity ink, is the barrel. The printing body is made of a material having innumerable continuous pores capable of absorbing ink. The stamp with the above structure alternately opens and closes the two valve bodies by the forward and backward movements of the joint so that a proper amount of ink can be forcibly discharged to the stamp surface by the pumping action at the time of printing.

[0005]

【Example】

 FIG. 1 shows an embodiment of the present invention. First, as shown in the figure, a seal 1 is formed by connecting a joint 11 to a front shaft portion 3 ahead of a shaft cylinder 2 so that the joint 11 can move axially. The joint 11 has a step portion 18 at the tip of the inner hole 15 to form an inflow hole 19. A radial or disk-shaped gap 21 is formed on the front end surface 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 is disposed on the front surface thereof. Further, a printing body 32 made of porous ceramics, glass ceramics, metal or the like having innumerable continuous pores is placed on the front surface thereof, and the ink derivative 32 and the printing body 32 are densely mounted on the cover 36. And the cover 36 is fixed to the outer peripheral portion of the joint 11 on the front side. By the way, the ink derivative 34 is closely packed in the cover 36 to enhance the pressurizing effect with the valve chamber, which will be described later, the cushioning effect at the time of imprinting, and the effect of supplying ink to the character 32 by deformation at the time of imprinting. It has, but is not essential for the configuration. It is also possible to combine the ink whose viscosity is increased by making the printing body rubber.

Further, a valve element 23 is arranged behind the inflow hole 19 together with a bush 24 having a receiving seat 25 for closely contacting its tapered surface. 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, so that the valve body 23 can be moved forward and the first valve is provided between the valve body 23 and the ink guide 34. A chamber 22 is formed.

Further, an inner hole 17 is provided at the rear end of the joint 11, a step portion 20 is provided and an inner hole 16 having a slightly smaller diameter is provided in front thereof, and a step portion 12 is further provided in front thereof. An inner hole 15 having a slightly smaller diameter is provided. A window portion 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. Further, seal rings 27 and 28 are circumferentially arranged at required positions on the outer peripheral portion of the front shaft portion 3 in front of the shaft cylinder 2, and projecting locking portions corresponding to the window portions 13 are provided behind the seal rings 27 and 28. The part 4 is formed. The front end 3 of the shaft cylinder 2 is fitted into the inner hole 16 of the joint 11 with the rear end of the return spring 31 abutting against the step 5 behind the locking portion 4, and the front end of the return spring 31 is fixed. The locking portion 4 abuts on the step portion 20 and is fitted into the window portion 13 by mutual elastic deformation so that the rear end of the locking portion 4 is locked to the step portion 14 at the rear end of the window portion. On the other hand, the joint 11 is fixed so that it can move back and forth. At that time, the joint 11 can be retracted by the gap L while the step portion 12 is in contact with the tip of the shaft cylinder 2, and the front shaft portion 3 is inserted into the inner hole 16 with the seal rings 27 and 28 slidable. Closely. The shaft cylinder 2 and the joint 11 are configured as a synthetic resin molded product depending on the mutual connection conditions, but the materials are not limited because there are many connection methods.

By the way, 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 front hole portion 7 of the shaft cylinder 2 and the bush is pressed. A spring 30 is urged between a rear end of the valve body 24 and a 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, but it is also possible to form the valve bodies in a ball shape so as to be in close contact with the receiving seat.

In addition, the shaft cylinder 2 has a guide hole 10 behind the valve body 26 and an ink storage portion 6 behind it. The ink containing portion 6 is filled with high-viscosity ink, and a stirring ball for stirring the coating liquid is loosely fitted therein. Further, the inside of the ink containing portion 6 is appropriately pressurized and the ink is filled in the valve chambers 9 and 22. When the ink does not need to be agitated, the rear end of the ink is filled with a grease-like follower that can be moved as the coating liquid is consumed, and the rear end of the barrel is ventilated with outside air. A step is provided. Alternatively, the rear end of the ink can be configured to be in a pressurized state or provided with a pressing means. (Not shown)

[0010]

[Action]

 First, in FIG. 1, ink is filled up to the valve chambers 9 and 22. When pressure is applied to the printing surface 33 in this state, the joint 11 is retracted by the L dimension with respect to the barrel 2. At that time, the internal pressure in the valve chamber 9 rises to push up the valve body 23 and the ink flows into the valve chamber 22, and the ink is forcibly discharged to the printing body 32 through the inflow hole 19, the gap 21 and the ink derivative 34. When the pressure is released, the joint 11 returns to the shaft cylinder 2 and the pressure in the valve chamber 9 is reduced. At that time, the valve body 26 is pushed up and the ink flows into the valve chamber 9 through the guide hole 10. Hereinafter, by repeatedly pressing and releasing the printing surface 33 for each printing, it is possible to reliably supply the printing surface 33 even if the ink is sequentially pumped and has high viscosity.

[0011]

[Effect of device]

 The structure and operation of the seal stamp of the present invention are as described above. Since the ink is pumped by pressing and releasing the stamp surface, highly viscous ink can surely flow out, and there is no bleeding, quick drying, and red ink. It is possible to select an ink having a thick imprint such as. Also, if the ink supply amount is set to the transfer amount of the imprint, the imprint will always be constant, and the imprint will become thin with the ink consumption due to imprinting like a conventional seal that occludes ink, or ink will not be printed with continuous imprinting. However, there is no defect that it does not follow. Further, if the ink containing portion of the shaft cylinder is made transparent, there is an effect that the remaining amount of ink can be known.

[Brief description of drawings]

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seal 2 Shaft cylinder 3 Front shaft section 4 Locking section 5 Step section 6 Ink storage section 7 Hole section 8 Receiving seat 9 Valve chamber 10 Guide hole 11 Joint 12 Step section 13 Window section 14 Step section 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 Thin Hole 36 cover

Claims (1)

[Scope of utility model registration request] 1. A valve body provided with a joint having a print body at the front end on the front side of the shaft cylinder so as to move back and forth within an appropriate range by pressing and releasing the stamp face, and a valve body is always provided by a spring in the joint behind the print body. Is provided in close contact with the receiving seat, and further, the valve body is normally in contact with the receiving seat and tightly fitted in the inner hole of the tip of the shaft cylinder at the rear of the valve body. A second valve chamber is provided, an ink containing portion containing a highly viscous ink and communicating with the guide hole is provided on the shaft cylinder further behind the valve body, and the printing body can store ink. A seal stamp made of a material having innumerable continuous pores.