JP6340757B2 - Capless applicator - Google Patents

Description

  The present invention is a writing instrument and a cosmetic that do not require the removal of the cap, and is a sealed structure for preventing the pen tip from being dried by opening and closing the lid member interlocking with the forward / backward movement of the pen body to project and immerse the pen tip. It is about.

  As a container capable of preventing the nib from drying, a capless hermetic structure has been proposed and marketed. One of them is a sealing structure that prevents the nib from being dried by being constituted by a rod-like member that engages with the lid member and the writing body side and that has a slit.

Japanese Utility Model Publication No. 3-57091

In this prior art, the engagement hole of the lid member and the protrusion of the rod-shaped member having the slit, and the slit of the rod-shaped member having the slit and the protrusion of the spring receiving ring are engaged. However, since the engagement is constituted only by the through hole and the protrusion, and there is a space on the inner diameter side of the rod-shaped member having the slit, the rod-shaped member having the slit is subjected to an impact such as vibration or dropping. It is easy to come off.
Further, the assembling worker must be aware and visually aware of the rod-shaped member having the slit, always pay attention to the state, and must be careful.
Further, a diaphragm is formed in the slit of the rod-shaped member having the slit, and the rod-shaped member having the slit is advanced by resistance to the protrusion of the spring receiving ring, thereby opening and closing the lid member. However, since the rod-shaped member having the slit is linear or plate-like, it is difficult to bend, so the protrusion of the spring receiving ring is immediately cut and there is no resistance, and the lid member can be opened and closed somewhat. The lid member and the nib may come into contact with each other, and the nib may be damaged. Similarly, the user should always pay attention to the state of the rod-like member having the slit inside the product when using and carrying the product. I had to be careful. Therefore, it was very inconvenient.

  The present invention is an applicator that does not require the removal of the cap, and the gist of the sealing structure aimed at preventing the pen tip from being dried by opening and closing the lid member interlocking with the forward / backward movement of the writing body. And

  The present invention is an applicator that does not require the removal of the cap, and has a sealed structure aimed at preventing the tip of the pen from drying by opening and closing the lid member that interlocks with the forward and backward movement of the writing body by protruding and immersing the pen tip. Therefore, the pen tip can be surely moved up and down, and drying of the pen tip can be prevented.

Perspective views before and after using the first embodiment 1 is a longitudinal sectional view of FIG. The perspective view at the time of use of 1st Example 3 is a longitudinal sectional view 1 is an exploded perspective view of FIG. The perspective view of the arm member of 1st Example Enlarged view of locking of the seal lid and arm member of the first embodiment Enlarged view of locking of the central shaft and arm member of the first embodiment Perspective views before and after using the second embodiment The longitudinal cross-sectional view of FIG. The perspective view at the time of use of 2nd Example FIG. 11 is a longitudinal sectional view FIG. 9 is an exploded perspective view. The perspective view of the arm member of 2nd Example Enlarged view of engagement between seal lid and arm member of second embodiment Enlarged view of locking the central shaft and arm member of the second embodiment Perspective view before and during use of the third embodiment 17 is a longitudinal sectional view of FIG. The perspective view at the time of use of 3rd Example 19 is a longitudinal sectional view of FIG. 17 is an exploded perspective view of FIG. The perspective view of the arm member of 3rd Example Enlarged view of locking the seal lid and arm member of the third embodiment Perspective view before and during use of the fourth embodiment 24 is a longitudinal sectional view of FIG. The perspective view at the time of use of 4th Example 26 is a longitudinal sectional view of FIG. 24 is an exploded perspective view of FIG. The perspective view of the arm member of 4th Example Enlarged view of locking the seal lid and arm member of the fourth embodiment Enlarged view of locking of relay cylinder and arm member of fourth embodiment Perspective view before and during use of the fifth embodiment 32 is a longitudinal sectional view of FIG. The perspective view at the time of use of 5th Example 34 is a longitudinal sectional view 32 is an exploded perspective view of FIG. The perspective view of the arm member of 5th Example Enlarged view of locking of seal lid and arm member of fifth embodiment

DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 8 show a first embodiment of the present invention.
The capless applicator 1 is mainly composed of a shaft tube 2, a clip 3, and a middle shaft set 4. The middle shaft set 4 is inserted from the rear end opening 2 a of the shaft tube 2, and the outer diameter of the middle shaft set 4 is set. The portion 4a and the entire circumferential rib portion 2c in front of the inner diameter portion 2b of the shaft tube 2 are fitted and fixed. Further, the center shaft set 4 has a tip set 6, a seal tube set 7, a plate-like arm 8 and a cam ring 9 and a knock set 10 at the rear, respectively, centered on the center shaft 5, and a pad 11 is connected to the center shaft 5. Is included. The clip 3 is fitted and fixed to a T-shaped groove 3 a with a T-shaped convex portion 2 e located behind the outer peripheral surface 2 d of the shaft tube 2.
The tip set 6 is composed of three parts, a fixed tube 12, a tip 13, and a relay core 14. The outer peripheral surface 13a of the tip 13 is inserted into the inner diameter portion 12a of the fixed tube 12 toward the front, and the step portion 12b The front end convex portion 14a of the relay core 14 is fitted forward into the inner diameter portion 13c of the tip 13 and is in contact with the rear end surface 13d and the stepped portion 14b. The outer diameter portion 12c of the fixed tube 12 of the assembled tip set 6 is press-fitted and fixed to the front end opening 5a of the middle shaft 5.
The seal cylinder set 7 is composed of three parts: a seal lid 15, a seal cylinder 16 and a knocking spring 17. The seal lid 15 is disposed in front of the seal cylinder 16, and the front peripheral rib portion 16a and the flat surface 15a are enlarged. It abuts in an openable manner, is airtight, and has a tail portion 15b inserted into the T-shaped groove portion 16b so that it cannot be removed by a step portion 15c in the tail portion 15b. The knocking spring 17 is fitted behind the seal cylinder 16. At this time, in consideration of ease of assembly, the seal cylinder 16 and the knocking spring 17 may be lightly press-fitted. The assembled seal cylinder set 7 is inserted from the front to the rear of the middle shaft 5, abuts against the rear end 17 a of the knock spring 17 and the step portion 5 b of the middle shaft 5, and further, the knock spring 17 When the seal cylinder set 7 is moved rearward while compressing the inner diameter, the inner diameter full circumference rib portion 16c is slidably press-fitted into the front outer diameter portion 5c and airtight. While maintaining this state, the large hole 8b in front of the groove portion 8a of the arm 8 is fitted into the convex portion 5d of the middle shaft 5, and the small diameter portion 5e of the convex portion 5d is directed to the rear of the groove portion 8a. Since the convex portion 5d to be slid has a large diameter portion 5f, the arm 8 is prevented from being detached from the middle shaft 5. Next, the small hole 8 c of the arm 8 is inserted into the convex portion 15 e in the arm portion 15 d of the seal lid 15. At this time, the convex portion 15e has a flange portion 15f so that it does not come off. Since it is biased by the knocking spring 17, the seal cylinder set 7 moves forward, the rear end surface 8d of the groove 8a and the small diameter portion 5e come into contact with each other, and the locking portion of the convex portion 5d 5g and the convex portion 8e are engaged, and when the front shaft 5 moves forward, it is in a light press-fit state so as to be released when a certain force is applied, and the assembly of the seal cylinder set 7 is completed. . Since the surfaces of the locking portion 5g and the convex portion 8e are smooth each other, they are difficult to be scraped off. In addition, the arm 8 is a rigid body but is plate-like in a state immediately before the engagement, so that it is perpendicular to the axial direction. Since the bend, that is, the vicinity of the convex portion 8e is elastically deformed, the engaging portion 5g and the convex portion 8e are less likely to be scraped off, and the durability is improved.
The arm 8 will be described in detail. There is an arm portion 8f, the small hole 8c is provided in the front portion thereof, the groove portion 8a is disposed in the rear portion of the arm portion 8f, and the large hole 8b and the rear portion are disposed in front of the groove portion 8a. Has a convex portion 8e.
At this time, the flat surface 15 a of the seal lid 15 and the front end circumferential rib portion 16 a of the seal cylinder 16 are strongly brought into contact with each other by the urging force of the knocking spring 16 and are airtight.
The cam ring 9 has an inner diameter portion 9a inserted into the rear outer diameter portion 5h of the front shaft 5, and the step portion 9b abuts on the rear end surface 5i. In this embodiment, the front shaft 5 and the cam ring 9 are divided into two parts for accuracy of parts and other reasons, but they may be integrated into one part.
The knock set 10 is composed of two parts, a knock 18 and a batting 11, and the batting 11 containing ink is inserted into a front end opening 18a of the knock 18 and light press-fitting and fixing by a vertical rib 18b and an outer peripheral surface 11a. The step 18c and the rear end surface 11b are in contact with each other.
The knock set 10 is inserted into the rear end opening 9c of the cam ring 9 from the rear to the front, and is screwed by the threaded portion 5j of the front shaft 5 and the threaded portion 18d of the knock 18 so that the entire circumferential rib The portion 5k and the outer peripheral surface 18e are press-fitted and airtight. As a result, the front shaft 5 is kept airtight by the front shaft 5, the seal lid 14, and the seal cylinder 15, and the rear is kept airtight by the front shaft 5 and the knock 18.
At the time of ink replacement, the knock set 10 can be removed by turning the screwing of the screw portion 18d in the direction opposite to that at the time of assembly. Therefore, the inner cotton 11 containing ink may be replaced or the ink may be replenished.
The tip 13 is a bundle of elongated fibers, and the shape of the tip is aligned and the length is uniform. In this embodiment, a bundle of polystyrene resin fibers (PS) is used, but nylon-6 is used. Synthetic resin fibers such as polyamide resin fibers (PA) such as nylon and 66, polybutylene terephthalate resin fibers (PBT), polyethylene terephthalate resin (polyester resin) fibers (PET), and several types of hair may be mixed. good. Further, animal hair such as horses, deer, pigs, chestnuts, and sheep may be used, and can be appropriately selected for the application.
The seal cylinder 16 is an elastic body, and in this embodiment, a resin in which a thermoplastic elastomer resin and a PP resin are mixed is used. Silicon rubber, natural rubber, or synthetic rubber may be used, and an elastic body that can be slightly deformed and stretched. Is preferably used, and can be appropriately selected for its use.
In consideration of hermeticity of the ink, the central shaft 5, the seal lid 15, and the knock 18 use PP resin in this embodiment, and are cyclic olefin polymer resin (COP), cyclic olefin copolymer resin (COC), polycarbonate. Resin (PC), polyethylene terephthalate resin (PET), and methylpentene polymer resin (TPX) may be used, and it is preferable to use a resin excellent in hermeticity, which can be appropriately selected for the application.
Further, the arm 8 is a rigid body, and in this embodiment, a stainless steel material is used. A long fiber reinforced resin, a polypropylene resin (PP) containing glass fiber, a polycarbonate resin (PC), a polyethylene terephthalate resin ( PET) or polyacetal resin (POM) may be used, and it is preferable to use a rigid body that is not easily deformed and stretched, and can be appropriately selected for the application.
By using the seal cylinder 16 for the resin having high sealing performance, the shaft cylinder 2 can be decorated. In this embodiment, acrylonitrile butadiene styrene resin (ABS) is used, and polycarbonate resin (PC), polyethylene is used. It can be terephthalate resin (PET), polybutylene terephthalate resin (PBT), styrene acrylonitrile resin (SAN), polystyrene resin (PS), polypropylene resin (PP), metal (brass, stainless steel), and has excellent decorating properties. It is preferable to use a suitable material, and it can be appropriately selected for the application.

Next, the operation will be described. When the rear end face 18 f of the knock 18 is pressed, the tip set 6 (fixed tube 12, tip 13, relay core 14), the middle shaft 5, the cam ring 9, and the knock set 10 (filling 11, knock 18) are urged by the knock spring 17. At the same time, the arm 8 starts to move forward because it is united by the engagement of the engaging portion 5g of the convex portion 5d of the central shaft 5 and the convex portion 8e of the arm 8.
However, the seal lid 15 is prevented from advancing because the tail portion 15b of the seal lid 15 is fitted into the T-shaped groove portion 16b of the seal cylinder 16 and is in contact with the step portion 15c on the tail portion 15b. Since the arm 8 continues to move forward, the tip of the tip 13 does not come into contact with the seal lid 15 because the seal lid 15 is expanded by changing to a rotating force.
Further, when the rear end face 18f is pressed, the convex portion 8e rides on the engaging portion 5g of the convex portion 5d that is lightly press-fitted so as to be released when a certain force is applied. 5e slides toward the front of the groove 8a, so that the advance of the arm 8 stops, but the tip set 6 (the fixed tube 12, the tip 13, the relay core 14), the central shaft 5, and the cam ring 9 and the knock set 10 (the batting 11 and the knock 18) continue to advance.
Further, when the rear end face 18f is pressed, the ball portion 3b of the clip 3 comes into contact with the locking portion 9d of the heart ring structure of the cam ring 9, and is locked in the state as shown in FIGS. It protrudes from the front end opening 2f of the shaft tube 2 and is ready for use. Incidentally, the ball portion 3b allows the locking portion 9d of the heart cam structure to move back and forth so that the locking state and the locking release can be repeated.
When the rear end surface 18f is pressed again after use, the locking state of the ball portion 3b of the clip 3 and the locking portion 9d of the heart cam structure of the cam ring 9 is released, and the tip of the tip is caused by the urging of the knock spring 17 The set 6 (the fixed tube 12, the tip 13, the relay core 14), the middle shaft 5, the cam ring 9, and the knock set 10 (the batting 11, the knock 18) begin to move backward. At this time, since the small diameter portion 5e slides toward the rear of the groove portion 8a, the arm 8 is stopped.
Further, the tip set 6 (the fixed tube 12, the tip 13, the relay core 14), the middle shaft 5, the cam ring 9, and the knock set 10 (the batting 11, the knock 18). Since the locking portion 5g of the convex portion 5d and the convex portion 8 come into contact with each other and the arm 8 also starts to retract, the tip 13 is already at the inner diameter portion 16d of the seal cylinder 16 if it continues to retreat. The tip 13 does not come into contact with the seal lid 15.
When the arm 8 moves backward, the sealing lid 15 changes to a rotating force, and the flat surface 15a of the sealing lid 15 and the front end circumferential rib portion 16a of the sealing cylinder 16 come into contact with each other.
Further, when the tip set 6 (the fixed tube 12, the tip 13, the relay core 14), the middle shaft 5, the cam ring 9, and the knock set 10 (the batting 11, the knock 18) continue to retreat, The convex portion 8e rides on the engaging portion 5g of the convex portion 5d, the rear end surface 8d of the groove portion 8a contacts the small diameter portion 5e, and the engaging portion 5g of the convex portion 5d and the convex portion 8e Engage and no longer retract, and the state before and after use in FIGS.

The other form for implementing this invention is demonstrated based on drawing. 9 to 16 show a second embodiment of the present invention.
The capless applicator 19 is mainly composed of a shaft cylinder 20, a clip 21, and a middle shaft set 22. The middle shaft set 22 is inserted from the rear end opening 20 a of the shaft cylinder 20, and the outer diameter of the middle shaft set 22 is set. The portion 22a and the entire peripheral rib portion 20c in front of the inner diameter portion 20b of the shaft cylinder 20 are fitted and fixed. Further, the middle shaft set 22 has a nib 24, a seal tube set 25 and an arm 26 disposed in front of the middle shaft 23, a cam ring 27 and a knock set 28 disposed in the rear, and a batting 29 is included in the middle shaft 23. ing. The clip 21 is fitted and fixed to a T-shaped groove portion 21 a with a T-shaped convex portion 20 e located behind the outer peripheral surface 20 d of the shaft tube 20.
The nib 24 is press-fitted and fixed in the front end opening 23 a of the middle shaft 23.
The seal tube set 25 is composed of a seal lid 30, a seal tube 31, and a knock spring 32. The seal lid 30 is disposed in front of the seal tube 31, and the front end full peripheral rib portion 31 a and the flat surface 30 a are expanded. It abuts so that it can be opened, is airtight, and has a tail portion 30b fitted into the T-shaped groove portion 31b so that it cannot be removed by a step portion 30c in the tail portion 30b. The knock spring 32 is fitted behind the seal cylinder 31. At this time, in consideration of ease of assembly, the seal cylinder 31 and the knock spring 32 may be lightly press-fitted. The assembled seal cylinder set 25 is inserted from the front side to the rear side of the middle shaft 23, contacts the rear end 32 a of the knock spring 32 and the step portion 23 b of the middle shaft 23, and further, the knock spring 32. When the seal tube set 25 is moved rearward while compressing the inner peripheral rib 23c, the inner diameter full circumference rib portion 31c is slidably press-fitted into the front outer diameter portion 23c and airtight. While maintaining this state, the large hole 26b in front of the groove portion 26a of the arm 26 is inserted into the convex portion 23d of the intermediate shaft 23, and the small-diameter portion 23e of the convex portion 23d is directed toward the rear of the groove portion 26a. Since the convex portion 23d to be slid has a large-diameter portion 23f, the arm 26 is prevented from being detached from the middle shaft 23. Next, the small hole 26 c of the arm 26 is inserted into the convex portion 30 e in the arm portion 30 d of the seal lid 30. At this time, the protrusion 30e has a flange 30f so that it does not come off. Since it is urged by the knock spring 32, the seal tube set 25 moves forward, the rear end surface 26d of the groove 26a and the small diameter portion 23e come into contact with each other, and the locking portion of the convex portion 23d When the front shaft 23 moves forward and engages with the projections 26g and 23g, it is in a light press-fit state so as to be released when a certain force is applied, and the assembly of the seal cylinder set 25 is completed. . Since the surfaces of the locking part 23g and the convex part 26e are smooth surfaces, they are difficult to be scraped off. In the state immediately before the engagement, the arm 26 is a rigid body but has a plate shape, so that it is perpendicular to the axial direction. Since the bend, that is, the vicinity of the convex portion 26e is elastically deformed, the engaging portion 23g and the convex portion 26e are less likely to be cut away from each other, and the durability is improved.
The arm 26 will be described in detail. There is an arm portion 26f, the small hole 26c is provided in the front portion thereof, the groove portion 26a is disposed in the rear portion of the arm portion 26f, and the large hole 26b and the rear portion are disposed in front of the groove portion 26a. Has a convex portion 26e.
At this time, the flat surface 30a of the seal lid 30 and the front end circumferential rib portion 31a of the seal cylinder 31 are strongly brought into contact with each other by the urging force of the knocking spring 32 and are airtight.
The cam ring 27 has the inner diameter portion 27a inserted into the rear outer diameter portion 23h of the front shaft 23, and the step portion 23b abuts against the rear end surface 23i. Although the present embodiment is divided into two parts, the front shaft 23 and the cam ring 27, due to the accuracy of parts and other reasons, they may be integrated into one part.
The knock set 28 is composed of two parts, a knock 33 and a batting 29, and the batting 29 containing ink is inserted into the front end opening 33a of the knock 33, and light press-fitting and fixing by a longitudinal rib 33b and an outer peripheral surface 29a. The step 33c and the rear end surface 29b are in contact with each other.
The knock set 28 is inserted into the rear end opening 27c of the cam ring 27 from the rear to the front, and is screwed by the screw portion 23j of the front shaft 23 and the screw portion 33d of the knock 33, so that the entire peripheral rib The portion 23k and the outer peripheral surface 33e are press-fitted and airtight. As a result, the front shaft 23 is kept airtight by the front shaft 23, the seal lid 30, and the air tightness by the seal cylinder 31, and the rear is kept airtight by the front shaft 23 and the knock 33.
At the time of ink replacement, the knock set 28 can be removed by turning the screw thread of the screw portion 33d in the direction opposite to that at the time of assembly. Therefore, the pad 29 containing ink may be replaced or the ink may be replenished.
The nib 24 is a porous body. In this embodiment, an acrylic resin (polyacrylonitrile resin) fiber (PAN) is bonded with a resin, but a polyamide resin fiber such as nylon-6 or nylon-66 is used. (PA), synthetic resin fiber such as polyethylene terephthalate resin (polyester resin) fiber (PET), etc., combining the fiber material / thickness / amount, resin material / amount, etc., oil marker, board marker, line marker A variety of pen tips such as a sign pen and a brush pen may be used, and can be selected as appropriate for the application.
The seal cylinder 31 is an elastic body, and in this embodiment, a resin in which a thermoplastic elastomer resin and a PP resin are mixed is used. Silicon rubber, natural rubber, or synthetic rubber may be used, and an elastic body that can be slightly deformed and stretched. Is preferably used, and can be appropriately selected for its use.
In consideration of hermeticity of the ink, the central shaft 23, the seal lid 30 and the knock 33 use PP resin in this embodiment, and are cyclic olefin polymer resin (COP), cyclic olefin copolymer resin (COC), polycarbonate. Resin (PC), polyethylene terephthalate resin (PET), and methylpentene polymer resin (TPX) may be used, and it is preferable to use a resin excellent in hermeticity, which can be appropriately selected for the application.
Further, the arm 26 is a rigid body, and in the present embodiment, a stainless steel material is used. A long fiber reinforced resin, a polypropylene resin (PP) containing glass fiber, a polycarbonate resin (PC), a polyethylene terephthalate resin ( PET) or polyacetal resin (POM) may be used, and it is preferable to use a rigid body that is not easily deformed and stretched, and can be appropriately selected for the application.
By using the sealing cylinder 31 for the resin having high sealing performance, the shaft cylinder 20 can be decorated. In this embodiment, acrylonitrile butadiene styrene resin (ABS) is used, and polycarbonate resin (PC), polyethylene is used. It can be terephthalate resin (PET), polybutylene terephthalate resin (PBT), styrene acrylonitrile resin (SAN), polystyrene resin (PS), polypropylene resin (PP), metal (brass, stainless steel), and has excellent decorating properties. It is preferable to use a suitable material, and it can be appropriately selected for the application.

Next, the operation will be described. When the rear end surface 33f of the knock 33 is pressed, the nib 24, the middle shaft 23, the cam ring 27, and the knock set 28 (filling 29, knock 33) move forward against the bias of the knock spring 32, and at the same time, Since the engaging portion 23g of the convex portion 235d and the convex portion 26e of the arm 26 are integrated, the arm 26 also starts moving forward.
However, the seal lid 30 is prevented from advancing because the tail portion 30b of the seal lid 30 is fitted in the T-shaped groove portion 31b of the seal cylinder 31 and is in contact with the step portion 30c in the tail portion 30b. Since the arm 26 continues to advance, the seal lid 30 is expanded by changing to a rotating force, so that the pen tip 24 does not come into contact with the seal lid 30.
Further, when the rear end face 33f is pressed, the convex portion 26e rides on the engaging portion 23g of the convex portion 23d that is lightly press-fitted so as to be released when a certain force is applied. 23e slides toward the front of the groove 26a, so that the advance of the arm 26 stops, but the pen tip 24, the middle shaft 23, the cam ring 27, and the knock set 28 (the batting 29, the knock 33). . Keeps moving forward.
Further, when the rear end surface 33f is pressed, the ball portion 21b of the clip 21 and the locking portion 27d of the heart ring structure of the cam ring 27 come into contact with each other and are locked in the state shown in FIGS. Protrudes from the front end opening 20f of the shaft cylinder 20 and is ready for use. Incidentally, the ball portion 21b allows the locking portion 27d of the heart cam structure to move back and forth so that the locking state and the locking release can be repeated.
When the rear end surface 33f is pressed again after use, the locking state of the ball portion 21b of the clip 21 and the locking portion 27d of the heart cam structure of the cam ring 27 is released, and the urging force of the knocking spring 32 causes the pen The tip 24, the middle shaft 23, the cam ring 27, and the knock set 28 (the batting 29, the knock 33). Begins to retreat. At this time, the small diameter portion 23e slides toward the rear of the groove portion 26a, so that the arm 26 is stopped.
Further, when the pen tip 24, the middle shaft 23, the cam ring 27, and the knock set 28 (the batting 29, the knock 33) continue to retreat, the locking portion 23g of the convex portion 23d and the convex portion 26e are brought into contact with each other. Since the arm 26 also starts to retract, the pen nib 24 is already stored in the inner diameter part 31d of the seal cylinder 31, and the pen nib 24 is in contact with the seal lid 30. Absent.
As the arm 26 moves backward, the sealing lid 30 changes to a rotating force, and the flat surface 30a of the sealing lid 30 and the front end circumferential rib portion 31a of the sealing cylinder 31 come into contact with each other.
Further, when the pen point 24, the middle shaft 23, the cam ring 27, and the knock set 28 (the batting 29, the knock 33) continue to retreat, the convex portion 26e is formed on the engaging portion 23g of the convex portion 23d. The rear end surface 26d of the groove 26a and the small diameter portion 23e come into contact with each other, and the locking portion 23g and the convex portion 26e of the convex portion 23d are engaged with each other, so that the rear end surface 26d is not retracted any more. FIG. 10 shows a state before and after use.

The other form for implementing this invention is demonstrated based on drawing. 17 to 23 show a third embodiment of the present invention.
The capless applicator 34 is mainly composed of a shaft cylinder 35, an intermediate shaft set 36, and a knock set 37. The intermediate shaft set 36 is inserted from the rear end opening 35 a of the shaft cylinder 35, and the outside of the intermediate shaft set 36 is inserted. The diameter portion 36a and the circumferential rib 35c in front of the inner diameter portion 35b of the shaft cylinder 35 are fitted and fixed. Further, the middle shaft set 36 is divided into a seal cylinder set 38 and a knock type applicator 39.
The seal cylinder set 38 is composed of four parts: a seal lid 40, a seal cylinder 41, an arm 42, and a knocking spring 43. The seal lid 40 is disposed in front of the seal cylinder 41, and a front end circumferential rib portion 41a and a flat surface 40a. Are in contact with each other so as to be expandable, and are airtight, and the tail portion 40b is fitted into the T-shaped groove portion 41b so that the step portion 40c in the tail portion 40b does not come off. The arm 42 is included in the inner diameter portion 41 c of the seal cylinder 41, and the hole 42 a of the arm 42 is inserted into the convex portion 40 e in the arm portion 40 d of the seal lid 40. At this time, the protrusion 40e has a flange 40f so that it does not come off. The knock spring 43 is fitted behind the seal cylinder 41. At this time, the seal cylinder 41 and the knocking spring 43 may be lightly press-fitted in consideration of assembly. When the knock type applicator 39 presses the rear end surface 44a of the knock 44 at the rear end, the cartridge 46 containing the ink contained in the shaft tube 45 moves forward, and the bellows member 47 is compressed while the valve member 47 is compressed. 48 advances, ink is filled into the space 49, and the ink is supplied to the tip 51 through the pipe 50.
The assembled seal cylinder set 38 is inserted from the front to the rear of the middle shaft set 36, and is in contact with the rear end 43a of the knock spring 43 and the flange 39a of the knock type applicator 39. When the seal cylinder set 38 is moved rearward while compressing the knocking spring 43, the inner circumferential rib portion 41d is slidably press-fitted into the front outer diameter portion 39b and airtight. While maintaining this state, the inner diameter portion 42b of the arm 42 is engaged with the front outer diameter rib portion 39c of the knock-type applicator 39, and is lightly press-fitted. Further, the flange 39d prevents it from coming off. Further, since the rear portion 42c has a C-ring shape, although depending on the type of material, it can be slightly bent, so that a light press-fit state can be maintained and durability is improved. The assembly of the seal cylinder set 38 is completed.
The arm 42 will be described in detail. The two arm portions 42d are opposed to each other, the holes 42a are provided at the front portions thereof, and the rear portion 42c is connected to the rear portion of the arm portion 42 in a C-ring shape. It is integrated with the arm portion 42d of the book.
At this time, the flat surface 40 a of the seal lid 40 and the front end full circumference rib portion 41 a of the seal cylinder 41 are strongly brought into contact with each other by the urging force of the knocking spring 43 and are airtight.
The knock set 37 is composed of a knock 52, a tail plug 53, and a release button 54. An outer diameter portion 53a of the tail plug 53 is inserted into a rear end opening 52a of the knock, and the side opening 52b The release button 54 is inserted, and the knock set 37 is assembled. The assembled knock set 37 is inserted from the rear end opening 35 a of the shaft cylinder 35. At this time, the U-shaped portion 54 of the button 54 is deformed to advance the inner diameter portion 35b, the button portion 54b is inserted into the hole 35d, and the knock set 37 is prevented from being pulled backward.
The tip 51 is a bundle of elongated fibers, and the shape of the tip is adjusted and the length is uniform. In this embodiment, a bundle of polystyrene resin fibers (PS) is used, but nylon-6 is used. Synthetic resin fibers such as polyamide resin fibers (PA) such as nylon and 66, polybutylene terephthalate resin fibers (PBT), polyethylene terephthalate resin (polyester resin) fibers (PET), and several types of hair may be mixed. good. Further, animal hair such as horses, deer, pigs, chestnuts, and sheep may be used, and can be appropriately selected for the application.
The seal cylinder 41 is an elastic body, and in this embodiment, a resin in which a thermoplastic elastomer resin and a PP resin are mixed is used. Silicon rubber, natural rubber, or synthetic rubber may be used, and an elastic body that can be slightly deformed and stretched. Is preferably used, and can be appropriately selected for its use.
In addition, the arm 42 is a rigid body, and in this embodiment, a stainless steel material is used. A long fiber reinforced resin, a polypropylene resin (PP) in which glass fiber is added, a polycarbonate resin (PC), a polyethylene terephthalate resin ( PET) or polyacetal resin (POM) may be used, and it is preferable to use a rigid body that is not easily deformed and stretched, and can be appropriately selected for the application.
Since the seal cylinder 41 is used for a resin having high sealing performance, the shaft cylinder 35 can be decorated. In this embodiment, acrylonitrile butadiene styrene resin (ABS) is used, and polycarbonate resin (PC), polyethylene is used. It can be terephthalate resin (PET), polybutylene terephthalate resin (PBT), styrene acrylonitrile resin (SAN), polystyrene resin (PS), polypropylene resin (PP), metal (brass, stainless steel), and has excellent decorating properties. It is preferable to use a suitable material, and it can be appropriately selected for the application.

Next, the operation will be described. When the rear end surface 53b of the tail plug 53 is pressed, the knock 53 and the tail plug 53 move forward, the rear end surface 39e of the knock type applicator 39 abuts on the front end surface 53c of the tail plug 53, and the knock type applicator 39. At the same time, the arm 42 also starts moving forward because the front outer rib portion 39c of the knock type applicator 39 and the inner diameter portion 42b of the arm 42 are integrated with each other.
However, the seal lid 40 is prevented from advancing because the tail portion 40b of the seal lid 40 is fitted into the T-shaped groove portion 41b of the seal cylinder 41 and is in contact with the step portion 40c in the tail portion 40b. Since the arm 42 continues to move forward, the sealing lid 40 is expanded by changing to a rotating force, so that the tip 51 at the front end of the knock type applicator 39 does not come into contact with the sealing lid 40. . Further, when the rear end surface 53b is pressed, the engagement between the front outer diameter rib portion 39 and the inner diameter portion 42b, which is lightly press-fitted so as to be released when a certain force is applied, is disengaged, and the arm 42 is moved forward. The knock type applicator 39, the knock 53 and the tail plug continue to advance.
Further, when the rear end face 53b is pressed, the knock-type applicator 39 is temporarily stopped due to the urging force of the knock spring 43, and the knock-type applicator 39 is in the rear end face of the knock 44 at the rear end. 44a is pressed, the cartridge 46 containing the ink contained in the shaft cylinder 45 moves forward, and the bellows member 47 compresses, while the valve member 48 moves forward, the ink is filled into the space 49, and the pipe 50 is filled. Then, ink is supplied to the tip 51. Further, when the rear end surface 53b is pressed, the locking portion 54c of the release button 54 and the locking portion 52c of the knock 52 come into contact with each other, and are locked in the state as shown in FIGS. The shaft cylinder 35 protrudes from the front end opening 35e, and is ready for use.
When the button portion 54b is pressed after use, the engagement state of the engagement portion 54c of the release button 54 and the engagement portion 52c of the knock 52 is released, and the application of the knock type application is performed by the urging of the knock spring 43. The tool 39, the knock 44 and the tail plug 53 begin to retract. At this time, the arm 42 is stopped.
Further, when the knock type applicator 39, the knock 44 and the tail plug 53 continue to move backward, the front outer diameter rib portion 39c and the inner diameter portion 42b come into contact with each other, and the arm 42 also starts moving backward together. At this time, since the tip 51 is already accommodated in the inner diameter portion 41 c of the seal cylinder 41, the tip 51 does not come into contact with the seal lid 40.
As the arm 42 moves backward, the sealing lid 40 changes to a rotating force, and the flat surface 40a of the sealing lid 40 and the front end circumferential rib portion 41a of the sealing cylinder 41 abut. Further, when the knock applicator 39, the knock 44 and the 53 continue to move backward, the front outer diameter rib portion 39c of the knock applicator 39 and the inner diameter portion 42b of the arm 42 are engaged, and light press-fitting is performed. The hook-shaped applicator 39 that has been pressed during this time is not moved backward by the flange 39d, and the knock 44 at the rear end also returns to the original state, and before use in FIGS. It will be in the state after use.

The other form for implementing this invention is demonstrated based on drawing. 24 to 31 show a fourth embodiment of the present invention.
The capless applicator 55 is mainly composed of a front shaft cylinder 56, a middle shaft set 57, and a rear shaft cylinder (knock) set 58, and the middle shaft set 57 is inserted from the rear end opening 56a of the front shaft cylinder 56. The outer peripheral portion 57a of the middle shaft set 57 and the entire circumferential rib 56c in front of the inner diameter portion 56b of the front shaft cylinder 56 are fitted and fixed. Further, the middle shaft set 57 is divided into a seal cylinder set 59, an arm 60, a knock type applicator 61 and a relay cylinder 62 from the front.
The seal cylinder set 59 is composed of three parts: a seal lid 63, a seal cylinder 64, and a knocking spring 65. The seal lid 63 is disposed in front of the seal cylinder 64, and the front end circumferential rib portion 64a and the flat surface 63a are enlarged. It abuts so that it can be opened, is airtight, and a tail portion 63b is inserted into the T-shaped groove portion 64b so that it does not come off by a step portion 63c in the tail portion 63b. The knock spring 65 is fitted behind the seal cylinder 64. At this time, in consideration of ease of assembly, the seal cylinder 64 and the knock spring 65 may be lightly press-fitted. The assembled seal tube set 59 is inserted from the front side to the rear side of the knock type applicator 61, and is in contact with the rear end 65a of the knock spring 65 and the flange portion 61a of the knock type applicator 61. When the seal cylinder set 59 is moved rearward while compressing the knocking spring 65, the inner circumferential rib portion 64c is slidably press-fitted into the front outer diameter portion 61b and airtight. While maintaining this state, the large hole 60b in front of the groove portion 60a of the arm 60 is fitted into the convex portion 62a of the relay cylinder 62 behind the knock type applicator 61, and the small diameter of the convex portion 62a is inserted. Since the convex portion 62a has a large-diameter portion 62c that slides the portion 62b toward the rear of the groove portion 60a, the arm 60 is prevented from being detached from the relay cylinder 62. Next, the small hole 60 c of the arm 60 is inserted into the convex portion 63 e on the arm portion 63 d of the seal lid 63. At this time, the protrusion 63e has a flange 63f so that it does not come off. Since it is biased by the knocking spring 65, the seal tube set 59 moves forward, the rear end surface 60d of the groove 60a and the small diameter portion 62b come into contact with each other, and the locking portion of the convex portion 62a When the relay cylinder 62 moves forward by engaging 62d and the convex part 60e, it is in a light press-fit state so as to be released when a certain force is applied, and the assembly of the seal cylinder set 59 is completed. . Since the surfaces of the locking part 62d and the convex part 60e are smooth surfaces, they are difficult to be scraped off, and the arm 60 is a rigid body but is plate-like in the state immediately before the engagement, so that it is perpendicular to the axial direction. Since it bends slightly, the locking portion 62d and the convex portion 60e are less likely to be cut away from each other, and durability is improved.
The arm 60 will be described in detail. The two arm portions 60f are in positions facing each other, the small holes 60c are respectively provided in the front portions thereof, the groove portions 60a are disposed in the rear portions of the arm portions 60f, and the groove portions 60a are provided. There is a large hole 60b on the front side and a convex part 60e on the rear side, and an intermediate part of the two arm parts 60f is connected by a semicircular connecting part 60g.
At this time, the flat surface 63a of the seal lid 63 and the front end circumferential rib portion 64a of the seal cylinder 64 are strongly brought into contact with each other by the urging force of the knocking spring 65 and are airtight.
When the knock-type applicator 61 presses the rear end surface 66 a of the knock 66 at the rear end, the piston 68 is advanced by the knock mechanism 67 disposed in front of the knock 66, and the ink contained in the shaft tube 69. Is pushed forward, and the ink is supplied to the tip 70 located at the front end of the knock type applicator 61 through the pipe 71 contained in the tip 70.
The rear barrel (knock) set 58 has a knock structure of a rotating cam (David cam) that is widely used in ballpoint pens and the like, and includes a screw shaft 72, a rear barrel 73, a knock 74, a slider 75, and a rotor. The knock 74, the slider 75, the rotor 76, and the screw shaft cylinder 72 are inserted in this order into the front end opening 73a of the rear shaft cylinder 73. That is, the screw shaft cylinder 72, the rotor 76, the slider 75, and the knock 74 are arranged in this order from the front to the inner diameter portion 73b of the rear shaft cylinder 73. The shaft cylinder 73 is fitted into and integrated with the convex portion 72a and the hole 73c. The knock 74 and the slider 75 are screwed together to be integrated, and can slide back and forth, and the rotor 76 can slide back and forth and can rotate.
Finally, the screw portion 56d of the front shaft tube 56 and the screw portion 72b of the screw shaft tube 72 are screwed together.
The tip 70 is a bundle of elongated fibers, and the shape of the tip is aligned and the length is uniform. In this embodiment, a bundle of polystyrene resin fibers (PS) is used, but nylon-6 is used. Synthetic resin fibers such as polyamide resin fibers (PA) such as nylon and 66, polybutylene terephthalate resin fibers (PBT), polyethylene terephthalate resin (polyester resin) fibers (PET), and several types of hair may be mixed. good. Further, animal hair such as horses, deer, pigs, chestnuts, and sheep may be used, and can be appropriately selected for the application.
The seal cylinder 63 is an elastic body, and in this embodiment, a resin in which a thermoplastic elastomer resin and a PP resin are mixed is used. Silicon rubber, natural rubber, or synthetic rubber may be used, and an elastic body that can be slightly deformed and stretched. Is preferably used, and can be appropriately selected for its use.
Further, the arm 60 is a rigid body, and in this embodiment, a stainless steel is used, and a long fiber reinforced resin, a polypropylene resin (PP) in which glass fiber is added, a polycarbonate resin (PC), a polyethylene terephthalate resin ( PET) or polyacetal resin (POM) may be used, and it is preferable to use a rigid body that is not easily deformed and stretched, and can be appropriately selected for the application.
By using the sealing cylinder 63 as a resin having high sealing performance and by dividing the knock 74 and the slider 75 into separate parts, the external parts of the front cylinder 56, the rear cylinder 73, and the knock 74 are decorated. This example uses acrylonitrile butadiene styrene resin (ABS), polycarbonate resin (PC), polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), styrene acrylonitrile resin (SAN). Polystyrene resin (PS), polypropylene resin (PP), metal (brass, stainless steel) may be used, and it is preferable to use a material excellent in decorating properties, and it can be appropriately selected in the application.

Next, the operation will be described. When the rear end surface 74a of the knock 74 is pressed, the slider 75 and the rotor 76 integrated with the knock 74 advance, and the front end surface 76a of the rotor 76 and the rear end surface 62e of the relay cylinder 62 abut against each other. Since it is in contact, the relay cylinder 62 also starts to move forward. Furthermore, since the rear end surface 66a of the knock 66 of the knock type applicator 61 and the inner diameter step portion 62f of the relay cylinder 62 are in contact with each other, at the same time as the forward movement starts, the engaging portion 62d of the relay cylinder 62 and the arm 60 The arm 60 also starts to advance due to the engagement of the convex portion 60e.
However, the seal lid 63 is prevented from moving forward because the tail portion 63b of the seal lid 63 is fitted into the T-shaped groove portion 64b of the seal cylinder 64 and is in contact with the step portion 63c of the tail portion 63b. Since the arm 60 continues to move forward, the seal lid 63 is expanded by changing to a rotating force, so that the tip 70 at the front end of the knock type applicator 61 does not contact the seal lid 63. . Further, when the rear end surface 74a is pressed, the engaging portion 62d of the relay cylinder 62 and the convex portion 60e of the arm 60 are disengaged from each other in a state of light press-fitting so as to be released when a certain force is applied. While the forward movement of 60 stops, the knock type applicator 61 continues to move forward together with the relay cylinder 62, the rotor 76, the slider 75, and the knock 74.
Further, when the rear end surface 74a is pressed, the knock type applicator 61 is temporarily stopped due to the urging force of the knock spring 65, and the knock type applicator 61 is in the state of the knock 66 at the rear end. The rear end face 66 a is pressed, and the piston 68 is advanced by the knock mechanism 67 disposed in front of the knock 66, the ink contained in the shaft cylinder 69 is pushed forward, and the pipe 71 contained in the tip 70. Ink is supplied to the tip 70 located at the front end of the knock type applicator 61.
Further, when the rear end surface 74a is pressed, the rotor 76 rotates and enters a locked state, and is locked in the state shown in FIGS. 26 and 27, and the tip 70 is released from the front end opening 56e of the front barrel 56. It protrudes and is ready for use.
After use, when the rear end surface 74a of the knock 74 is pressed, the rotor 76 rotates, the locking is released, and it starts to move backward by the urging force of the knock spring 65. The knock 74, the slider 75 The relay cylinder 62 and the knock type applicator 61 also start to retract. At this time, the small diameter portion 62b slides toward the rear of the groove portion 60a, so that the arm 42 is stopped.
Further, when the knock 74, the slider 75, the relay cylinder 62, and the knock type applicator 61 are continuously retracted, the engaging portion 62d of the convex portion 62a and the convex portion 62a come into contact with each other, and the arm 60 is also retracted. At this time, the tip 70 is already accommodated in the inner diameter portion 64d of the seal cylinder 64, so that the tip 70 does not come into contact with the seal lid 63.
As the arm 60 moves backward, the sealing lid 63 changes to a rotational force, and the flat surface 63a of the sealing lid 63 and the front end circumferential rib portion 64a of the sealing cylinder 64 abut.
Further, when the knock 74, the slider 75, the relay cylinder 62, and the knock type applicator 61 are continuously retracted, the convex portion 60e rides on the engaging portion 62d of the convex portion 63e, and the rear end surface of the groove portion 60a. 60d and the small-diameter portion 62b come into contact with each other, and the engaging portion 62d of the convex portion 62a and the convex portion 60e are engaged with each other, so that they no longer retreat, and before and after use in FIGS. It becomes a state.

The other form for implementing this invention is demonstrated based on drawing. 32 to 38 show a fifth embodiment of the present invention.
The capless applicator 77 is mainly composed of a front shaft cylinder 78, a middle shaft set 79, and a rear shaft cylinder (rotary feeding) set 80, and the middle shaft set 79 is inserted from a rear end opening 78a of the front shaft cylinder 78. The outer peripheral portion 79a of the middle shaft set 79 and the entire peripheral rib 78c in front of the inner diameter portion 78b of the front shaft cylinder 78 are fitted and fixed. Further, the middle shaft set 58 is divided into a seal tube set 81, an arm 82, a batting applicator 83, and a relay tube 84 from the front.
The seal cylinder set 81 includes three parts, a seal lid 85, a seal cylinder 86, and a knock spring 87. The seal lid 85 is disposed in front of the seal cylinder 86, and the front end circumferential rib portion 86a and the flat surface 85a are enlarged. It abuts so that it can be opened, is airtight, and has a tail 85b fitted into the T-shaped groove 86b so that it cannot be removed by a step 85c in the tail 85b. The knock spring 87 is fitted behind the seal cylinder 86. At this time, the seal cylinder 86 and the knocking spring 87 may be lightly press-fitted in consideration of assembly. The batting type applicator 83 is fitted into the front end opening 84 a of the relay cylinder 84 located behind the batting type applicator 83. At this time, null fitting or patching fitting may be used, and the batting applicator 83 and the relay cylinder 84 may be integrated. The assembled seal cylinder set 81 is inserted from the front to the rear of the batting applicator 83, and is in contact with the rear end 87a of the knocking spring 87 and the flange portion 84b of the relay cylinder 84. When the seal cylinder set 81 is moved rearward while compressing the knocking spring 87, the inner circumferential rib portion 86c is slidably press-fitted into the front outer diameter portion 83b and airtight. While maintaining this state, the hole 82a of the arm 82 is inserted into the convex portion 85e in the arm portion 85d of the seal lid 85. At this time, the protrusion 85e has a flange 85f so that it does not come off. The inner diameter portion 82b of the arm 82 is engaged with the front outer diameter rib portion 84c of the relay cylinder 84, and is in a light press-fit state. Further, the flange 84b prevents it from coming off. Further, since the rear portion 82c of the arm 82 has a C-ring shape, although depending on the type of material, it can be slightly bent, so that a light press-fit state can be maintained and durability can be improved. The assembly of the seal cylinder set 81 is completed.
The arm 82 will be described in detail. The two arm portions 82d are in a position facing each other, the holes 82a are respectively provided in the front portions thereof, and the rear portion 82c is connected to the rear of the arm portion 82 in a C-ring shape. It is integrated with the two arm portions 82d.
At this time, the flat surface 85a of the seal lid 85 and the front end circumferential rib portion 86a of the seal cylinder 86 are strongly brought into contact with each other by the urging force of the knocking spring 87 and air tight.
The batting type applicator 83 draws the ink from the batting 89 containing the ink contained in the shaft tube 88 to the relay core 90 using the capillary phenomenon due to fine pores, and supplies the ink to the tip 91.
The rear barrel (rotary payout) set 80 has a rotary payout structure using a rotary cam widely used in ballpoint pens and the like, and includes a rear barrel 92, a rotor 93, a first cam barrel 94, and a second cam barrel 95. The second cam cylinder 95, the first cam cylinder 94, and the rotor 93 are arranged in this order from the front to the inner diameter portion 92a of the rear barrel 92, and the rotation of the rotor 93 Accordingly, the second cam cylinder 95 can be moved back and forth along the cam surface.
Finally, the hole 78b of the front shaft cylinder 78 and the engaging projection 92b of the rear shaft cylinder 92 are engaged, fixed, and integrated.
The tip 91 is a bundle of elongate fibers, and the shape of the tip is adjusted and the length is made uniform. In this embodiment, a bundle of polystyrene resin fibers (PS) is used, but nylon-6 is used. Synthetic resin fibers such as polyamide resin fibers (PA) such as nylon and 66, polybutylene terephthalate resin fibers (PBT), polyethylene terephthalate resin (polyester resin) fibers (PET), and several types of hair may be mixed. good. Further, animal hair such as horses, deer, pigs, chestnuts, and sheep may be used, and can be appropriately selected for the application.
The seal cylinder 86 is an elastic body, and in this embodiment, a resin in which a thermoplastic elastomer resin and a PP resin are mixed is used. Silicon rubber, natural rubber, or synthetic rubber may be used, and an elastic body that can be slightly deformed and stretched. Is preferably used, and can be appropriately selected for its use.
In addition, the arm 81 is a rigid body, and in this embodiment, a stainless steel material is used. A long fiber reinforced resin, a polypropylene resin (PP) containing glass fiber, a polycarbonate resin (PC), a polyethylene terephthalate resin ( PET) or polyacetal resin (POM) may be used, and it is preferable to use a rigid body that is not easily deformed and stretched, and can be appropriately selected for the application.
By using the seal cylinder 86 for the resin having high sealing performance, the external parts of the front shaft cylinder 78, the rear cylinder 92, and the rotor 93 can be decorated. In this embodiment, acrylonitrile butadiene styrene resin (ABS) is used. Polycarbonate resin (PC), polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), styrene acrylonitrile resin (SAN), polystyrene resin (PS), polypropylene resin (PP), metal ( Brass, stainless steel, etc.) may be used, and it is preferable to use a material excellent in decorating properties, and it can be appropriately selected for its use.

Next, the operation will be described. When the outer peripheral projection 93a of the rotor 93 is rotated, the second cam cylinder 95 which can slide back and forth with the rotor 93 and is not rotated starts to rotate along the cam surface 94a of the first cam cylinder 94. . Further, the relay cylinder 84 which can slide back and forth with the front cylinder 78 and does not rotate also advances along the cam surface 95a of the first cam cylinder 95 and the cam surface 84d of the relay cylinder 84. The batting type applicator 83 integrated with the relay cylinder 84 also moves forward. Due to the engagement of the front outer rib portion 84c of the relay cylinder 84 and the inner diameter portion 82b of the arm 82, the arm 82 also starts to advance.
However, the seal lid 85 is prevented from moving forward because the tail portion 85b of the seal lid 85 is fitted into the T-shaped groove portion 86b of the seal cylinder 86 and is in contact with the step portion 85c of the tail portion 85b. Since the arm 82 continues to advance, the sealing lid 85 is expanded by changing to a rotating force, so that the tip 91 at the front end of the batting type applicator 83 does not come into contact with the sealing lid 85. . Further, when the outer peripheral projection 93a of the rotor 93 is rotated, the front outer rib portion 84c of the relay cylinder 84 and the arm 82 are in a state of light press-fitting so as to be released when a certain force is applied. The engagement of the inner diameter part 82b is disengaged and the advance of the arm 82 stops, but the batting applicator 83, the relay cylinder 84, and the second cam cylinder 95 all continue to advance.
Further, when the outer peripheral projection 93a of the rotor 93 is rotated, the cam cylinder 95 is locked, locked in the state as shown in FIGS. 34 and 35, and the tip 91 is attached to the front cylinder 78. It protrudes from the front end opening 78e and becomes ready for use.
After use, when the outer peripheral projection 93a of the rotor 93 is rotated in the reverse direction, the second cam cylinder 95 is also rotated in the reverse direction, the locking is released, and the retraction is started by the urging force of the knock spring 87, The batting applicator 83, the relay cylinder 84, and the second cam cylinder 95 also start to retract. At this time, since the arm 82 is not locked, it is in a stopped state, that is, the seal lid 85 is maintained in an expanded state.
Further, when the batting type applicator 83, the relay cylinder 84, and the second cam cylinder 95 are continuously retracted, the front outer diameter rib portion 84c of the relay cylinder 84 and the inner diameter portion 82b of the arm 82 come into contact with each other, Since the arm 82 also starts to retract, the tip 91 is already accommodated in the inner diameter portion 86d of the seal cylinder 86, so that the tip 91 does not come into contact with the seal lid 85.
When the arm 82 moves backward, the sealing lid 85 changes to a rotating force, and the flat surface 85a of the sealing lid 85 and the front end full-circumferential rib portion 86a of the sealing cylinder 86 abut.
Further, when the front batting type applicator 83, the relay cylinder 84, and the second cam cylinder 95 are continuously retracted, the inner diameter portion 82b of the arm 82 rides on the front outer rib portion 84c of the relay cylinder 84. Further, the front outer diameter rib portion 84c of the relay cylinder 84 and the inner diameter portion 82b of the arm 82 are engaged, and the arm 82 abuts on the flange portion 84b of the relay cylinder 84 and retreats further. Thus, the state before and after use in FIGS. 32 and 33 is obtained.

Similar to the first embodiment and the second embodiment, the third embodiment, the fourth embodiment, and the fifth embodiment may be configured such that the applicator and the relay cylinder are integrated as a central shaft.
Furthermore, although not shown, each arm, each applicator (such as the shape and size of the nib and tip), and each knock (protruding) structure according to the first to fifth embodiments can be freely combined. Can also be appropriately selected according to the content liquid (viscosity, aqueous, oily, dye, pigment, etc.) and application (writing instrument, cosmetic, disposable, cartridge exchange, etc.).
In the above examples, the applicator is exemplified, but specific examples of the applicator include a marking pen, a whiteboard marker, a writing instrument such as a brush, a cosmetic such as a lipstick, an eyeliner, and a concealer, and a car paint. Examples include pens for repairing scratches on the surface.

DESCRIPTION OF SYMBOLS 1 Capless applicator 2 Shaft cylinder 2a Rear end opening part 2b Inner diameter part 2c Whole circumference rib part 2d Outer peripheral surface 2e T-shaped convex part 2f Front end opening part 3 Clip 3a T-shaped groove part 3b Ball part 4 Middle shaft set 4a Outer diameter part 5 Middle shaft 5a Front end opening 5b Stepped portion 5c Front outer diameter portion 5d Protruding portion 5e Small diameter portion 5f Large diameter portion 5g Locking portion 5h Rear outer diameter portion 5i Rear end surface 5j Screw portion 5k All-round rib portion 6 Tip set 7 Seal cylinder Set 8 Arm 8a Groove portion 8b Large hole 8c Small hole 8d Rear end surface 8e Projection portion 8f Arm portion 9 Cam ring 9a Inner diameter portion 9b Step portion 9c Rear end opening portion 9d Locking portion 10 Knockset 11 Filling 11a Outer peripheral surface 11b Rear end surface 12 Fixed Pipe 12a Inner diameter portion 12b Stepped portion 12c Outer diameter portion 13 Tip 13a Outer peripheral surface 13b Collar portion 13c Inner diameter portion 13d Rear end surface 14 Relay core 14a Leading convex portion 14b Stepped portion 15 Seal lid 15a Plane 5b Tail portion 15c Step portion 15d Arm portion 15e Protruding portion 15f Flange portion 16 Seal cylinder 16a Front end full circumference rib portion 16b T-shaped groove portion 16c Inner diameter full circumference rib portion 16d Inner diameter portion 17 Knock spring 17a Rear end 18 Knock 18a Front end opening 18b Vertical rib 18c Stepped portion 18d Threaded portion 18e Outer peripheral surface 18f Rear end surface 19 Capless applicator 20 Shaft cylinder 20a Rear end opening 20b Inner diameter portion 20c Full peripheral rib portion 20d Outer peripheral surface 20e T-shaped convex portion 20f Front end opening portion 21 Clip 21a T-shaped groove portion 21b Ball portion 22 Middle shaft set 22a Outer diameter portion 23 Middle shaft 23a Front end opening portion 23b Step portion 23c Front outer diameter portion 23d Protruding portion 23e Small diameter portion 23f Large diameter portion 23g Locking portion 23h Rear outer diameter portion 23i Rear end surface 23j Screw part 23k All-around rib part 24 Nib 25 Seal cylinder set 26 Arm 26a Groove part 26b Large hole 6c Small hole 26d Rear end surface 26e Protruding portion 26f Arm portion 27 Cam ring 27a Inner diameter portion 27b Stepped portion 27c Rear end opening portion 27d Locking portion 28 Knockset 29 Filling 29a Outer peripheral surface 29b Rear end surface 30 Seal lid 30a Flat surface 30b Tail portion 30c Stepped portion 30d Arm portion 30e Protruding portion 30f Flange portion 31 Seal tube 31a Front end full circumference rib portion 31b T-shaped groove portion 31c Inner diameter full circumference rib portion 31d Inner diameter portion 32 Knock spring 32a Rear end 33 Knock 33a Front end opening portion 33b Vertical rib 33c Stepped portion 33d Screw portion 33e Outer peripheral surface 33f Rear end surface 34 Capless applicator 35 Shaft tube 35a Rear end opening portion 35b Inner diameter portion 35c Full peripheral rib portion 35d Hole 35e Front end opening portion 36 Middle shaft set 36a Outer diameter portion 37 Knock set 38 Seal tube set 39 Knock-type applicator 39a collar portion 39b front outer diameter portion 39 Front outer diameter rib portion 39d Hook portion 39e Rear end surface 40 Seal lid 40a Flat surface 40b Tail portion 40c Step portion 40d Arm portion 40e Projection portion 40f Hook portion 41 Seal cylinder 41a Front end full peripheral rib portion 41b T-shaped groove portion 41c Inner diameter portion 41d Inner inner diameter portion Circumferential rib portion 42 Arm 42a Hole 42b Inner diameter portion 42c Rear portion 42d Arm portion 43 Knock spring 43a Rear end 44 Knock 44a Rear end surface 45 Shaft 46 46 Cartridge 47 Bellows member 48 Valve member 49 Space 50 Pipe 51 Ear 52 Knock 52a Rear end opening Portion 52b side opening 52c locking portion 53 tail plug 53a outer diameter portion 53b rear end surface 53c front end surface 54 release button 54a U-shaped 54b button portion 54c locking portion 55 capless applicator 56 front shaft cylinder 56a rear end opening 56b Inner diameter part 56c All-around rib part 56d Screw part 56e Front end opening part 57 Middle shaft set 57a Outer diameter portion 58 Rear shaft barrel (knock) set 59 Seal barrel set 60 Arm 60a Groove portion 60b Large hole 60c Small hole 60d Rear end surface 60e Convex portion 60f Arm portion 60g Connecting portion 61 Knock type applicator 61a Lump portion 61b Front Portion outer diameter portion 62 Relay cylinder 62a Protruding portion 62b Small diameter portion 62c Large diameter portion 62d Locking portion 62e Rear end surface 62f Inner diameter step portion 63 Seal lid 63a Flat surface 63b Tail portion 63c Step portion 63d Arm portion 63e Protrusion portion 63f Head portion 64 Seal tube 64a Front end full circumference rib part 64b T-shaped groove part 64c Inner diameter full circumference rib part 64d Inner diameter part 65 Knock spring 65a Rear end 66 Knock 66a Rear end face 67 Knock mechanism 68 Piston 69 Shaft cylinder 70 Tip 71 Pipe 72 Screw shaft cylinder 72a Convex part 72b Screw portion 73 Rear shaft cylinder 73a Front end opening 73b Inner diameter portion 73c Hole 74 Knock 7 a Rear end surface 75 Slider 76 Rotor 76a Front end surface 77 Capless applicator 78 Front shaft cylinder 78a Rear end opening 78b Inner diameter portion 78c Full peripheral rib portion 78d Hole 78e Front end opening 79 Middle shaft set 79a Outer diameter portion 80 Rear Shaft cylinder (rotary feeding) set 81 Seal cylinder set 82 Arm 82a Hole 82b Inner diameter part 82c Rear part 82d Arm part 83 Filling type applicator 83a Rear end face 83b Front outer diameter part 84 Relay cylinder 84a Front end opening part 84b Head part 84c Front part Outer diameter rib portion 84d Cam surface 85 Seal lid 85a Flat surface 85b Tail portion 85c Step portion 85d Arm portion 85e Protruding portion 85f Head portion 86 Seal cylinder 86a Front end full circumference rib portion 86b T-shaped groove portion 86c Inner diameter full circumference rib portion 86d Inner diameter portion 87 Knock Spring 87a Rear end 88 Shaft cylinder 89 Filling 90 Relay core 91 Tip 92 Rear axle 92a Inner diameter portion 92b Protrusions 93 rotor 93a outer peripheral projection 94 the first cam barrel 94a cam surface 95 second cam barrel 95a cam surface

Claims (5)

A cylindrical body is provided in the shaft cylinder, a lid is attached to the tip of the cylindrical body in the shaft cylinder so as to be openable and closable. Is always urged backward, and the lid and the cylindrical body are pressed against each other, and the lid opens as the tip of the writing body advances, while the tip of the writing body is stored when the writing body is retracted. A connecting means for closing the lid is provided after the operation, and the connecting means is constituted by a plate-like arm, and the connecting means and the writing body are connected to the writing body and the arm in the closed state of the lid. Temporary engagement means for temporarily engaging is provided, and the temporary engagement means is engaged in the radial direction between the engaging portion formed on the large-diameter portion of the convex portion of the writing body and the convex portion of the arm. After the engagement of the temporary engagement means is released, the connection means and the cursive body are moved relative to each other. Is allowed, capless applicator when taken by the slit forming the relative movement to the arm. The capless applicator according to claim 1, wherein a plurality of the arms are provided and the plurality of arms are connected by a connecting portion. Capless sprayer according to claim 2, characterized in that said connecting portion of said plurality of arms and a semi-circular or C ring. A cylindrical body is provided in the shaft cylinder, a lid is attached to the tip of the cylindrical body in the shaft cylinder so as to be openable and closable. Is always urged backward, and the lid and the cylindrical body are pressed against each other, and the lid opens as the tip of the writing body advances, while the tip of the writing body is stored when the writing body is retracted. A connecting means for closing the lid body is provided with a delay in operation, the connecting means is composed of a plurality of arms, the plurality of arms are connected by a connecting portion, and the connecting portion is formed in a C-ring shape, The cursive body and the connecting portion are provided with temporary engaging means for temporarily engaging the connecting means and the cursive body in the closed state of the lid, and the temporary engaging means is provided outside the cursive body. It consists of engagement of the diameter rib and the inner diameter portion of the connecting portion, and a certain force is applied when the cursive body advances. Capless / disengagement means for releasing engagement by slightly bending the connecting portion, and after releasing the engagement of the temporary engaging means, the connecting means and the writing body are moved relative to each other. Applicator. The capless applicator according to claim 4, wherein one of the connecting means is provided at a tip of the cursive body.

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