JP5771036B2 - Liquid glue applicator - Google Patents

Description

  The present invention relates to a liquid glue applicator for applying liquid glue contained in a container body to a surface to be coated.

  Conventionally, as a liquid glue applicator, liquid glue is housed in a flexible container body, and the container body is pressed to deform the shape so that the liquid glue flows out from the application port and is applied to the surface to be coated. Liquid glue applicators are known. In addition, recently, a container body containing liquid paste is arranged in a shaft cylinder, and a knock body and a knock body that moves the container body back and forth in the shaft cylinder so that the application port protrudes and retracts from the tip opening of the shaft cylinder. A feeding mechanism and a pressurizing mechanism for pressurizing the inside of the container main body are arranged, and by applying a knocking operation to the knock body, the application port of the container main body containing the liquid paste protrudes from the opening at the tip of the shaft tube, and the liquid in the container main body Japanese Patent Application Laid-Open No. 2010-17992 also proposes a knock-pressing type liquid glue applicator that allows glue to flow out of an application port and applies liquid glue to a surface to be coated.

  The application port in such a conventional liquid glue applicator is formed in a tapered shape toward the tip so that a large amount of liquid glue does not flow out of the container body, and a small diameter through hole is provided at the tip. Or, for example, as disclosed in Japanese Utility Model Laid-Open No. 7-26193, it has a structure in which an applicator member made of a plastic porous material having open cells or open pores is provided as an application port.

  By the way, the liquid glue contains a solvent in order to give an adhesive force by solidifying, and in the liquid glue applicator, it is necessary to cover the application tip with a cap so that the liquid glue in the container body does not solidify. However, if it is not used for a while, the solvent will inevitably evaporate, and the liquid paste remaining in the through-holes, open cells or continuous small holes of the coating port will solidify, closing the through-holes, open cells or continuous small holes. As a result, there is a problem that the liquid paste does not flow out from the application port. In order to be able to use, it is necessary to remove the glue that has solidified at the application port from the application port so that the through-holes, continuous bubbles, or continuous small holes communicate with the inside and outside of the container body again. However, it is difficult to remove the glue that has adhered to the coating port, and it is difficult to remove the paste so that the hole penetrates again. In the case where a sponge application member is provided as an application port, it is difficult to remove the solidified glue from the application member so that the hole penetrates again, and the sponge application member is used by replacing it. .

  Further, in the above-described knock pressure type liquid glue applicator, unless the airtightness around the application port is ensured, the liquid paste remaining in the application port solidifies, and the liquid paste cannot immediately flow out of the application port. However, the structure is complicated in order to ensure airtightness around the coating port, or if the coating port is covered with a cap, etc., it is cumbersome and very convenient to use with the cap attached and removed one by one. It gets worse and is not practical as a real problem.

  As one of means for solving the above problem, it is conceivable to make the liquid paste difficult to solidify in order to prevent the liquid paste remaining in the coating port from solidifying, but the liquid paste is dried in the first place. Therefore, preventing the solidification by the composition of the paste denies the property of the liquid paste. As another means, it is conceivable to improve the airtightness around the coating port. Particularly, in the above-described knock-type liquid glue applicator, the structure becomes complicated and the manufacturing cost increases, The structure that covers the cap has a problem that it is not easy to use.

  The present inventor thought that the problem could be solved if the hole in the coating port penetrated so that the liquid paste could flow out from the coating port by removing the glue solidified at the coating port. The present invention has been reached.

JP 2010-17992 A Japanese Utility Model Publication No. 7-26193

  In the liquid paste applicator that flows out from the application port and applies the liquid paste contained in the container body to the surface to be applied, even if the liquid paste adhering to the application port is solidified and fixed, the solidified paste is easily removed. It is intended to allow the liquid paste in the container body to flow out from the coating port.

The present invention
"1. In a liquid glue applicator that flows out of the liquid glue contained in the container body from the application opening and applies it to the surface to be coated, the application opening is formed by an application member made of ceramics having holes communicating with the front and rear. A liquid glue applicator characterized in that the liquid glue flows out from the application port to the surface to be coated.
2. A pipe-shaped container main body provided with the application port at the tip is disposed in the shaft cylinder, and the container can be operated by knocking the knock body by a knock body, a knock-type feeding mechanism and a pressurizing mechanism disposed on the shaft cylinder. 2. The liquid paste applicator according to 1 above, wherein the main body is moved back and forth so that the application port protrudes and retracts from the tip opening of the shaft cylinder, and the liquid paste is discharged from the application port by pressurizing the inside of the container main body.
3. Item 2. The above-mentioned item 2, wherein a grease-like liquid stopper having a viscosity higher than that of the liquid paste and incompatible with the liquid paste on the side opposite to the coating port is disposed inside the container body. Liquid glue applicator.
4). 4. The liquid paste applicator according to 3 above, wherein a backflow prevention plug made of a porous material or a fiber bundle is disposed behind the liquid plug. "
It is.

  The ceramic is a molded body of an inorganic compound such as carbide, nitride, boride and the like, and examples of the oxide include alumina and zirconia, and examples of the carbide include silicon carbide. The diameter of the hole as the coating port in the present invention is not particularly limited because it varies depending on the viscosity of the liquid paste, but when the liquid paste stored in the container body faces the coating port downward, it is more natural than the coating port. It is important that the size is such that it does not flow out or dripping.

  In the present invention, the hole communicating with the front and rear provided in the ceramic may be a straight through hole or a hole communicating with the continuous small hole like a sponge, but the straight through hole is more Even if the distance in the front-rear direction is the shortest and the liquid glue solidifies in the hole, the glue solidified in the hole can be removed together when the glue solidified on the front end surface as the application port is peeled off from the ceramic surface. It becomes possible.

  The liquid stopper in the present invention is a writing instrument in which writing ink is stored directly in an ink storage cylinder, for example, a ballpoint pen, etc., to prevent volatilization of water or an organic solvent contained in the writing ink, and for the writing ink. This is the same as what is said to be a so-called ink follower for writing instruments, which is filled in order to prevent leakage or backflow to the rear end side where the ink storage cylinder is opened. The liquid stopper in the present invention is provided for preventing the liquid paste from drying and solidifying or thickening, and for preventing it from flowing backward to the side opposite to the coating port. In addition, when the inside of the container body is pressurized by a knocking operation on the knock body, the liquid glue is led out to the coating port side, and the coating body does not retract toward the rear end side where the container body opens when the coating port is directed upward. The viscosity is as follows.

  The backflow prevention plug is a sponge or the like that is filled directly in the ink storage cylinder to prevent backflow to the rear end side where the ink storage cylinder is opened, such as a ballpoint pen. It is the same as what is said to be an ink backflow prevention plug comprising a porous body or fiber bundle.

  In the invention according to claim 2, although the liquid paste applicator has a structure provided with a pressurizing mechanism for pressurizing the inside of the container main body by a knocking operation on the knock body, the inside of the container main body as seen in a pressure type ballpoint pen If the structure of the container is pressurized with pressurized gas, etc., the rear end of the container body opposite to the application port needs to be closed, and there is an effect of preventing the liquid glue in the container body from being dried. In the pressure ballpoint pen, the ballpoint pen tip is attached to the tip of the ink container that contains the writing ink, and the ballpoint tip is attached to the tip of the tip body of the ballpoint pen tip. This prevents the writing ink from flowing out from the tip of the chip body when not writing, but the liquid glue flows out from the coating port even when not applying, so a pressure mechanism with a knock type There is a significance to be provided.

Since the present invention has the structure as described above, even if the liquid paste attached to the coating port is solidified, the liquid paste is difficult to adhere to the ceramic, so the solidified paste can be easily peeled off from the coating port. The solidified glue inside is pushed out by the liquid glue in the container body at the time of application and discharged from the hole of the application member, so the hole does not clog, and the liquid glue in the container body is always more stable than the application port As a result, all the liquid paste in the container body can be used up.

Also, since the coating port is made of ceramics, the wear resistance as a characteristic of ceramics does not easily wear even when rubbed against the coated surface such as paper during coating, and the tip of the hole is blocked. In addition, since a certain amount of liquid paste can always flow out from the application port during application and the strength is high, there is also an advantage that it is possible to cope with a case where it is desired to increase the diameter of the application port.

  By making the liquid glue applicator of the invention according to claim 2 easy to carry, there is no need to press the container main body when the liquid glue in the container main body flows out from the application port, and a knock operation to the knock body Thus, the liquid paste can easily flow out from the application port, and a convenient liquid paste applicator can be obtained.

  In the liquid glue applicator of the invention according to claim 2, when the liquid glue in the container body moves to the application mouth side, the liquid glue Since the space formed between the liquid stoppers is in a negative pressure state, the liquid paste is prevented from flowing out from the application port, and when the application port is directed upward, the liquid adhesive is applied by the liquid stopper. It is possible to prevent outflow without being able to move to the rear end side that is open on the opposite side. In addition, if a liquid stopper is placed, unlike the closed system, it is possible to follow the liquid paste without pushing out the pressure during pressurization, and the liquid paste can be dried from the opening side opposite to the coating port. Can be prevented.

  By setting it as the invention which concerns on Claim 4, it can prevent that the liquid paste in a container main body further moves to the rear end side opened on the opposite side to an application port, and flows out.

It is a longitudinal cross-sectional view of a knock pressure type liquid glue applicator showing an embodiment of the liquid glue applicator of the present invention. It is a figure which shows the knock body in the knock pressurization type liquid glue applicator of a present Example, (a) is a longitudinal cross-sectional view, (b) is a side view. It is a figure which shows the piston in the knock pressurization type liquid glue applicator of a present Example, (a) is a longitudinal cross-sectional view, (b) is a side view. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the cylinder in the knock pressurization type liquid glue applicator of a present Example, (a) is a longitudinal cross-sectional view, (b) is a side view. In FIG. 1, it is a longitudinal cross-sectional view of the knock pressurizing type liquid glue applicator showing a state where the knocking operation is performed and the application port protrudes from the tip opening of the shaft tube. It is an expanded longitudinal cross-sectional view of the container main body in the knock pressurization type liquid glue applicator of a present Example.

  In a liquid glue applicator, an application port is formed by an application member formed of ceramics having a large number of holes communicating in the front and rear direction.

Embodiments of the liquid glue applicator of the present invention will be described with reference to the drawings. The present invention will be described as a knock pressure type liquid paste applicator as an example, but the present invention is not limited to this example.
The liquid glue applicator 1 shown in FIGS. 1 to 3 has the same structure as a knock-type writing instrument, and a shaft 2 is formed by screwing a front shaft 2a and a rear shaft 2b. A container body 4 containing a liquid paste 3 is housed in the shaft tube 2 in place of the writing body, and a knock-type feeding conventionally known in writing instruments is placed behind the container body 4. The mechanism is arranged.

  Briefly describing the knock-type feeding mechanism, as shown in FIG. 5, when the knock body 5 is pressed in the direction of the front end opening 6 of the front shaft 2a, the locking projection 7 formed on the outer wall of the knock body 6 is A protrusion 9 (also referred to as a ball portion) provided at the tip 8a of the clip 8 that clamps the pocket fabric with the shaft cylinder 2 when inserted into a pocket of clothing (not shown) or the like. The container main body 4 is held in a state where the container main body 4 is moved forward by being locked to the formed locking protrusion 10, and the rear end 8 b of the clip 8 is pressed to the locking protrusion 10 of the locking protrusion 7. When the lock is released, the knock body 5 is retracted, so that the container body 4 is retracted.

  A coil spring 11 is attached to the rear end portion 8b of the clip 8 in the present embodiment, and the projection portion 9 of the clip 8 is always pressed to the shaft tube 2 side, and the rear end portion 8b of the clip 8 is kept. , The connecting portion R between the clip 8 and the rear shaft 2b is used as a fulcrum, and the projection 9 of the clip 8 can be separated from the outer wall surface of the rear shaft 2b.

  Further, behind the container main body 4, a knock type pressurizing mechanism conventionally known in writing instruments is arranged. The knock type pressurizing mechanism will be briefly described. A piston 12 as shown in FIG. 3 is detachably inserted into the rear end portion of the container body 4 containing the liquid paste 3, and the first coil spring 15. Thus, the container body 4 and the piston 12 are urged rearward (to the right in FIG. 1). The container body 4 and the piston 12 are fitted in a press-fitted state that does not move relative to the piston 12 when the inside of the container body 4 is pressurized. The piston 12 is provided with a guide portion 13 for preventing the spring from being displaced in the axial direction when a spring for biasing the knock body 5 backward is provided. is there. The side surface is provided with two communication holes 14 that communicate with each other inside and outside.

  As shown in FIG. 4, a communication hole 14 formed in the piston 12 is formed in the piston 12 so that the cylinder 17 having front and rear openings and provided with locking projections 16 on the outer side can move back and forth with respect to the piston 12 so as to cover the piston 12. It is arranged so as not to block. The cylinder 17 is covered with the knock body 5, and the engagement hole 18 (see FIG. 2) having a distance longer than the axial length of the engagement protrusion 16 formed on the knock body 5 is inserted into the engagement hole 18. The stop protrusion 16 is locked and loosely fitted to the knock body 5 so as to be movable back and forth.

  A packing 19 is attached to the piston 12 so as to contact the inner wall surface of the cylinder 17, and serves as a first sealing portion 20. A second elastic ring 21 is provided behind the rear end portion of the cylinder 17 so as to be separated from the cylinder 17. A second coil spring 22 is stretched between the piston 12 and the knock body 5, and the knock body 5 is always urged toward the rear end of the rear shaft 2b.

The operation in the pressurizing mechanism will be briefly described. The mounting load on the first coil spring 15 for biasing the container body 4 backward, and the mounting load on the second coil spring 22 for biasing the knock body 5 backward. The operation changes depending on the size relationship, but for example,
The case where the mounting load on the first coil spring 15 is larger than the mounting load on the second coil spring 22 will be described. First, only the knock body 5 is advanced by the knocking operation on the knock body 5, and the second provided on the knock body 5. The elastic ring 21 contacts the rear end portion of the cylinder 17 to form a second sealing portion 23 (see FIG. 5), whereby the first sealing portion 20 and the second sealing portion 23 are formed inside the cylinder 17. The sealed space portion formed by the above is formed.

  When the knock body 5 further advances, the cylinder 17 is pressed against the piston 12 by the second elastic ring 21 to pressurize the sealed space portion by reducing the volume of the sealed space portion, and the container body 4. Pressurize the inside. At this time, the locking protrusion 7 of the knock body 5 is not locked to the locked protrusion 10 formed on the protrusion 9 of the clip 8.

  Further, when the knock body 5 moves forward, the piston 12 and the container body 4 are pushed forward by the cylinder 17, and the front end of the piston 12 comes into contact with the rear end portion of the front shaft 2a. 7 is locked to the locked protrusion 10 formed on the protrusion 9 of the clip 8, and the container body 4 is maintained in the advanced state as shown in FIG.

When the rear end portion 8 b of the clip 8 is pressed to release the locking projection 7 of the knock body 5 locked to the locked projection 10 of the clip 8, the container body 4 is pressed by the biasing force of the first coil spring 15. Since the piston 12, the cylinder 17 and the knock body 5 are retracted in conjunction with each other, the volume of the sealed space is not increased, and the knock body 5 is retracted by the urging force of the second coil spring 22, The second elastic ring 21 is separated from the rear end portion of the cylinder 17 and opens the second sealing portion 23. By further retraction of the knock body 5, the cylinder 17 is retreated with the locking projection 16 of the cylinder 17 being pressed against the front edge of the locking hole 18 of the knock body 5, and retreating. Is immersed in the front end opening 6 of the front shaft 2a and returns to its original position.

  As an embodiment of the container body which is a feature of the present invention, as shown in FIG. 6, a commercially available liquid paste 3 is accommodated in the pipe-shaped container body 4 and the front end (see FIG. 6 on the left side (opening direction 6), an application member 26 having a large number of fine pores 25 penetrating before and after formed of alumina is projected from the opening end 24 of the container body 4 at the tip. The application port 27 is fixed by screwing. A grease-like liquid stopper 28 having a higher viscosity than that of the liquid glue 3 is provided behind the liquid glue 3 on the side opposite to the coating port 27 in the container body 4, and a backflow prevention stopper made of a fiber bundle is provided behind the grease-like liquid stopper 28. 29 is inserted.

  The container body 4 is moved forward into the shaft cylinder 2 by the knocking operation to the knock body 5 so that the application port 27 of the container body 4 protrudes from the tip opening 6 of the shaft cylinder 2. The liquid paste applicator 1 is accommodated.

  The present invention can be applied to a member that is desired to be easily removed when the liquid paste is adhered, solidified and fixed.

DESCRIPTION OF SYMBOLS 1 Liquid glue applicator 2 Shaft cylinder 3 Liquid glue 4 Container body 5 Knock body 6 Tip opening 25 Pore 26 Application member 27 Application port 28 Liquid stopper 29 Backflow prevention stopper

Claims (4)

  In a liquid glue applicator for flowing liquid glue contained in a container body out of an application opening and applying it to a surface to be applied, the application opening is formed by an application member made of ceramics having holes communicating with the front and rear. A liquid glue applicator characterized in that liquid glue flows out from the mouth to the surface to be coated. A pipe-shaped container main body provided with the application port at the tip is disposed in the shaft cylinder, and the container can be operated by knocking the knock body by a knock body, a knock-type feeding mechanism and a pressurizing mechanism disposed on the shaft cylinder. The liquid glue applicator according to claim 1, wherein the main body is moved back and forth so that the application port protrudes and retracts from the opening at the tip of the shaft cylinder, and the inside of the container main body is pressurized so that the liquid glue flows out from the application opening.   3. A grease-like liquid stopper having a viscosity higher than that of the liquid paste and incompatible with the liquid paste on the side opposite to the coating port is disposed inside the container main body. Liquid glue applicator.   The liquid paste applicator according to claim 3, wherein a backflow prevention plug made of a porous body or a fiber bundle is disposed behind the liquid plug.

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