JPH0586553U - Seal with openable lid - Google Patents

Abstract

(57) [Summary] [Purpose] This is a seal stamp with a lid that does not require red meat and has a lid that does not change the print density with continuous stamping, allows the seal imprint to dry quickly, and prevents bleeding of the seal imprint. [Structure] A lid body that constantly shields an opening is attached to a side surface of a lower end of a shaft cylinder so as to be openable and closable, and a seal main body 1 in which a seal is attached to a lower end at an inner hole of the shaft cylinder serves as a shaft cylinder. A return spring is urged between to allow the axis to move freely.
When the upper end of the stamp main body projecting from the rear end of the shaft cylinder is knocked and moved downward, the lid part is opened to be in a marking state, and the seal stamp body fixes the cover 17 to the shaft part 21 below the inner cylinder 20. The inner cylinder is fixed with the ink storage body 15 and the printing body 13 made of a porous rubber or resin material capable of being impregnated with ink, and the ink flow rate control body 27 having a large number of blades and gaps at the upper end of the ink storage body. The lower end is connected and the ink tank 40 is connected to the upper end of the ink flow rate adjuster, and the ink is a water-based ink having the same composition as ink such as felt-tip pen having a viscosity of 2 to 60 centipoise. Is characterized by.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement in a stamp using a printing body made of a porous printing material having innumerable continuous pores.

[0002]

[Prior Art]

 Conventionally, there is known a seal stamp that does not need to be attached to the red meat each time it is used by using a printing body formed of a multi-pore printing material having innumerable continuous pores such as sponge rubber so as to absorb ink. Has been. Commercially available seals of this type consist of an ink storage material that is impregnated with ink and a printing material, and when the frequency of use is high, the ink runs out quickly and it is necessary to replenish the ink each time. Further, there is a drawback that the print density becomes thinner as the number of markings increases. In addition, when replenishing ink, a large amount of ink cannot be replenished at one time because the ink is dropped and impregnated on the printing surface with a dropper or the like, which is troublesome. In addition, 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 printed surface and stains the hands and the surroundings. Therefore, as a method for solving such drawbacks and problems, Japanese Utility Model Publication No. Sho 61-23410 discloses a method of replenishing ink from an ink cartridge by using an ink flow rate adjuster such as a writing instrument. ing. In addition, the ink used for stamps that use porous prints has a high viscosity of 500 to 600 centipoise, and the flow resistance of the ink that passes through the prints is large, so the ink does not follow closely when printed continuously There is a drawback that the concentration becomes low. In addition, since the ink component is hard to dry, there is a problem that the imprint is slow to dry and rubs and stains, and that the imprint bleeds after a long time.

[0003]

[Problems to be solved by the device]

 The object of the present invention is to focus on the fact that the method described in Japanese Utility Model Publication No. 61-23410 is effective for solving the drawbacks and problems of the conventional commercially available stamps, and further improving the method for continuous printing. The problem is to solve the problems that the print density becomes lighter when imprinting, the problem of stains due to the slow drying of the imprint, and the problem that the imprint bleeds after a long time. Another object of the present invention is to provide a convenient seal with a lid that does not require the attachment and detachment of a cap that shields the printing body.

[0004]

[Means for Solving the Problems]

 The seal stamp with an openable lid of the present invention devised to achieve the above object has a lid portion that constantly shields the opening portion provided with a spring property on the side surface of the lower end of the shaft cylinder so that it can be opened and closed. The main body of the seal, which has a seal attached to the lower end of the inner diameter of the shaft cylinder, is movably provided by activating a return spring between the seal and the upper end of the seal main body protruding from the rear end of the shaft cylinder. When it is moved downwards, the lid is opened and the printing surface is exposed so that printing can be performed.The main body of the stamp is the lower end of the inner cylinder, where the upper layer is a porous ink absorber that can be impregnated with ink, and the lower layer is. Also, a porous printing body is provided on the inner cylinder, and the ink flow rate adjusting body is fitted into the upper hole of the inner cylinder so that the upper end and the lower end of the ink occlusion body are substantially in contact with each other. The characteristic is that the viscosity is 2 to 60 centipoise.

[0005]

【Example】

 1 and 2 show an embodiment of the present invention. First, as shown in the figure, in the seal main body 1, the inner cylinder 20 has a shaft portion 21 below and a shaft portion 22 above the flange 16, and a hole portion 21a having a diameter larger than the lower end. However, a hole 21b is provided so as to penetrate further rearward. Further, a hole portion 21c for fixing a joint shaft 42 described later is formed above the shaft portion 22. A lateral hole 25 communicating with the hole 21b is formed on the upper side surface of the shaft portion 21, and a circumferential groove 23 is formed on the lower side surface. The ink occlusion body 15 is fitted in the hole 21a, and the printing body 13 having the printing surface 14 at the lower end is arranged by stacking the ink occlusion body 15, and the printing body 13 is fixed to the shaft portion 21 to close the cover 17. It is fixedly fitted. At that time, a thin and long air flow path 24 is formed between the inner wall of the cover 17 and the side surface of the shaft portion 21 so that the lateral hole 25 and the circumferential groove 23 communicate with each other. A small-diameter air hole 17a is formed on the side surface of the cover 17 at a position corresponding to the circumferential groove 23. By the way, the air flow path 24 is formed as a narrow groove on the side surface of the shaft portion 21, or is provided with a flat portion so as to form a void portion with the inner wall of the cover. It is also possible to connect one end to the lateral hole 25 to form a spiral groove on the side surface of the shaft portion 21 and to connect the other end to the air hole 17a.

The ink occlusion body 15 and the printing body 13 are made of a porous rubber or resin material having a large number of continuous pores and capable of being impregnated with ink (the printing body may be a porous ceramic or the like). The printing body 13 is laminated so as to be in close contact with the lower surface of the ink storage body 15 so that the ink impregnated in the ink storage body 15 can move smoothly to the printing body 13.

The ink flow rate adjusting body 27 fitted in the hole 21b of the inner cylinder 20 has a shaft portion 28 at the lower end and a shaft portion 29 having an appropriately sloped projection at the upper end. .. A large number of layered blades 31 are formed in the middle of the shafts 28 and 29, and gaps 32 are appropriately formed between the blades. Further, a relatively wide thick groove 37 communicating in the axial direction and two narrow grooves 38 having fine slits are formed on the side surface of the intermediate portion at two opposite locations, and at least the blade 33 at the uppermost end and the outermost blade 33 are formed. The blade 34 at the lower end is formed as a non-communication portion, while the narrow groove 38 is formed as a fine slit in communication with the groove 39 opened from the upper end of the shaft portion 29 and is at least higher than the blade at the lowermost end. Blades 35 are formed as non-communication parts. Further, a cutout 36 is formed in the blade 34 at the lowermost end on substantially the same line as the narrow groove 38. Further, an ink guide hole 30 is provided in the shaft center of the ink flow rate adjusting body 27 from the upper end to the lower end. Depending on the conditions, it may be possible to adjust the flow rate of the ink by inserting a core material having an ink guide groove on the outer periphery or a core material made of a fiber bundle capable of guiding the ink into the ink guide hole 30.

The ink tank 40 has a plug portion 41 in the lower inner hole, and ink is sealed in the inner hole of the plug portion 41 and the rear end. The ink tank 40 is a shaft of the ink flow rate adjusting body 27. The slanted projection formed on the upper end of the portion 29 tightly fits the shaft portion 29 while breaking the plug portion 41. The ink tank 40 is filled with water-based ink having the same composition as a water-based ballpoint pen, felt-tip pen or the like having a viscosity of 2 to 60 centipoise. Further, the ink flow rate adjusting body 27 is fitted in the hole 21b of the inner cylinder 20, the lower end of the shaft portion 28 is substantially in contact with the upper surface of the ink occlusion body 15, and the blade portion 3 is attached to the shaft portion 29. The packing 18 made of an elastic body is tightly fitted between the upper end of the inner cylinder 20 and the hole 21b of the inner cylinder 20.

By the way, the shaft cylinder 2 is formed by bulging the base 6 on the side surface of the lower end of the cylinder having the opening 9, and the lid 10 is rotatably attached to the shaft support 8 of the base 6. Further, a torsion coil spring 8a is urged between the lid portion 10 and the base portion 6, and the lid portion 10 is provided so as to be openable and closable in a state where the opening portion 9 is provided with a spring property and is always opened. It is configured to shield 9. Further, a ring-shaped step portion 3 is provided in the inner hole of the shaft cylinder 2, and a semi-cylindrical hood portion 4 is protruded from the lower end of the shaft cylinder 2.

As described above, the inner cylinder 20 is fitted in the inner hole portion of the shaft cylinder 2, the flange portion 16 is brought into contact with the lower end of the step portion 3 of the shaft cylinder 2, and the return spring 11 is attached to the upper end of the step portion 3. The lower end of the shaft is fitted in the contact state, the shaft portion 44 below the joining shaft 42 is fixed to the hole 21c at the upper end of the inner cylinder 20, and the lower end of the shaft portion 44 clamps the upper end of the packing 18. At that time, the rear end of the return spring 11 is brought into contact with the flange portion 43 of the joint shaft 42, and the inner cylinder 20 is constantly urged upward by the return spring 11. The ink tank 40 is mounted on the shaft 29 of the ink flow rate adjuster 27, and the lower end of the ink tank 40 is brought into close contact with the upper end of the packing 18. The packing 18 is not an indispensable member, but it is effective in preventing ink leakage into the ink tank. In this state, the rear shaft 12 is detachably fixed to the shaft portion 45 provided above the joining shaft 42. That is, the seal stamp body 1 is a movable shaft body in which the joint shaft 42 is fixed to the inner cylinder 20 having the seal stamp and the ink flow rate adjusting body 27, the ink tank 40 is attached, and the rear shaft 12 is fixed to the joint shaft 42. ..

By the way, although the rear shaft 12 and the ink tank 40 are separately formed in the present invention, the rear shaft 12 itself may be directly attached to the ink flow rate adjusting body 27 or the joint shaft 42 as an ink tank. .. In addition, a seal ring or the like is provided between the upper end of the cover 17 and the brim portion 16 within a range in which the seal body 1 can be moved by the return force of the return spring 11 so that the seal body 1 and the inner hole portion of the shaft cylinder 2 can be connected to each other. And the print surface 14 and the air holes 17a are located in a small chamber formed between the cover 10 and the lid 10 that shields the opening 9 in the substantially close-fitting state. It is also possible to suppress the evaporation of the. Although not shown, a rotation stopper is provided between the seal main body 1 and the barrel 2 so that the orientation of the printing surface is constant. Although not shown in the embodiment of the present invention, a locking device may be provided between the seal stamp body and the barrel to hold the printing surface in a protruding state and release the holding. Is.

[0012]

[Action]

 The stamp according to the embodiment of the present invention is configured as described above, and when printing is performed, the lower surface of the hood portion 4 of the shaft cylinder 2 is placed at a predetermined position such as a document, and the stamp is printed as shown in FIG. When the rear end of the shaft 12 is knocked (moved downward), the corner portion of the stamp (corner of the cover) opens the lid portion 10 to expose the printing surface 14, and at the same time, it comes into contact with a document or the like for imprinting. When the knock is released, the return force of the return spring 11 moves the seal main body 1 upward, the lid 10 is closed, the printing surface 14 is shielded, and the state shown in FIG. 1 is restored. By the way, the ink in the ink tank 40 is dropped on the ink occlusion body 15 and supplied to the character body 13 as the ink is consumed by the marking. At that time, it is necessary to replace air in the ink tank. The replaced air enters the thick groove 37 from the notch 36 of the ink flow rate adjusting body 27 through the thin and long air flow path 24 from the air hole 17a, passes through the thin groove 37 from the thick groove 37, and passes through the upper end of the shaft portion 29. Enters into the ink tank through the groove 39.

By the way, the role of the ink flow rate adjuster 27 is to drop ink in sequence on the ink occlusion body 15 to replace the air corresponding to the consumed ink in the ink tank 40, and to ink when the temperature rises. The ink expelled by the expansion of the air in the tank is retained in the gap 32, and when the temperature drops, the pressure in the ink tank is reduced and the ink retained in the gap 32 is collected in the ink tank. ing. In order for this mechanism to be carried out smoothly, the surface tension related to the viscosity of the ink and the wettability of the ink flow rate adjusting body 27 with the blade is important. If the viscosity is high, the flow resistance of the ink that has entered the gaps or grooves will increase, and it will not go in and out smoothly. The ink used for the stamp generally has a viscosity of 500 to 600 centipoise and is not suitable. Further, since the ink impregnated in the ink occlusion body 15 and the printing body 13 is rapidly supplied by continuous printing, the passage resistance tends to be large. Further, since the ink has poor drying property, the imprint is slow to dry, and there is a problem that the imprint bleeds for a long time.

From the above, when experiments are conducted prior to the present application, the mechanism of the ink flow rate adjusting body 27 is smoothly performed, the replenishment followability of the ink to the printing body at the time of continuous marking is improved, and the imprint In order to achieve the drying property and elimination of bleeding, it was found that an ink having a viscosity of 2 to 60 centipoise and the same composition as the water-based ink used in the water-based ballpoint pen and felt-tip pen is suitable. did. Also, in order to make the dryness of the imprint stand out, the ink composition is a solvent component with high volatility, but in handling the seal, the ink component is used so that the printing surface 16 does not dry within a time that does not cause any trouble. It is set appropriately. However, in that case, a thin and long air flow path communicating with the outside air is effective in order to suppress evaporation of the stored ink.

Further, by providing the void 26, the lateral hole 25, the air flow path 24, the circumferential groove 23, and the air hole 17a as in the embodiment of the present application, even if the ink is scattered in the void 26 due to temperature change or drop, There is no problem of reaching the hole 17a and staining the hands and the surroundings with ink. When the ink runs out, the rear shaft 12 is removed from the joint shaft 42 and the ink tank 40 is replaced.

[0016]

[Effect of the device]

 The construction and operation of the openable seal stamp with lid of the present invention are as described above, and the ink does not sufficiently follow when continuously printing and the print density does not become thin. In addition, the mechanism of the ink flow rate adjuster works smoothly to appropriately drop the ink and prevent accidents such as ink jetting due to temperature change. In addition, by making the expandable lid part in a close-fitting state and using a thin and long air flow path, it is possible to use ink with a relatively quick imprint drying property, which causes rubbing and smearing documents etc. By using ink of the same quality as a water-based ballpoint pen or felt-tip pen, the problem that the imprint bleeds after a long time is improved. In addition, it is convenient because the lid part can be opened and stamped by knocking.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention, showing a state in which a printing surface is housed.

FIG. 2 is a vertical cross-sectional view showing a state in which the printing surface is exposed by knocking from the state of FIG.

[Explanation of symbols]

 1 Seal main body 2 Shaft cylinder 3 Step part 4 Hood part 5 Cut window 6 Base part 7 Groove 8 Shaft support part 8a Torsion coil spring 9 Opening part 10 Lid part 11 Return spring 12 Rear shaft 13 Printed body 14 Printed surface 15 Ink occlusion body 16 Tuba Part 17 Cover 17a Air hole 18 Packing 19 Step part 20 Inner cylinder 21 Shaft part 21a Hole part 21b Hole part 21c Hole part 22 Shaft part 23 Circumferential groove 24 Air passage 25 Side hole 26 Gap 27 Ink flow rate adjuster 28 Shaft part 29 Shaft 30 Ink Guide Hole 31 Blade 32 Gap 33 Blade 34 Blade 35 Blade 36 Notch 37 Thick Groove 38 Narrow Groove 39 Groove 40 Ink Tank 41 Plug Port 42 Joining Shaft 43 Flange 44 Shaft 45 Shaft

Claims (1)

[Scope of utility model registration request] 1. A lid part that constantly shields the opening part is attached to a side surface of a lower end part of a shaft cylinder so as to be openable and closable, and
The seal main body 1 having a seal attached to the lower end in the inner hole of the shaft cylinder is provided between the shaft cylinder and the return spring so that the shaft can move freely, and the upper end of the seal main body 1 protruding from the upper end of the shaft cylinder is knocked. Then, when it moves downwards, the lid part opens and the printing surface 14
In the opening and closing type seal with lid, the seal body 1 is moved upward by the return force of the return spring to close the lid by releasing the knock so that the seal can be stamped. The stamp main body 1 has an ink absorber 15 made of a porous rubber or resin material, which has an infinite number of continuous pores in the upper layer and can be impregnated with ink, at the lower end of the inner cylinder 20, and a printing surface 14 on the lower layer outwardly. The seal is formed by fixing a printing body 13 made of a porous rubber or resin material or a porous ceramic, which is also exposed to the ink and can be impregnated with ink, with a cover 17, and occludes the ink in the upper hole of the inner cylinder 20. The ink flow rate adjusting body 27 is fitted so that the lower end of the body 15 is substantially in contact with the upper end of the body 15, and a large number of blades 31 and gaps 32 are provided between the blades on the side surface of the ink flow rate adjusting body 27. Axially at two points facing each other Grooves 37 and narrow grooves 38 are formed, an ink guide hole 30 is provided from the upper end to the lower end at the axial center of the ink flow rate adjusting body 27, and the upper end has the same quality as a water-based ballpoint pen or felt-tip pen having a viscosity of 2 to 60 centipoise. An openable lid seal stamp with a lid, comprising an ink tank 40 for storing a water-based ink having the above composition, and the ink is adjusted and supplied from the ink tank 40 to the printing body 13. .