JP3511410B2 - Applicator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator for applying a correction fluid to the erroneous portion (correction portion) when writing a correct character on an erroneous writing or the like, and more particularly to a barrel (liquid The present invention relates to a pressurizing structure for increasing the internal pressure in a tank) to rapidly apply the correction liquid from the liquid application port at the tip of the barrel.

[0002]

2. Description of the Related Art Conventionally, when this type of applicator is not used, the cap, which is hermetically attached to the tip end fitting, is attached / detached to / from the tip end fitting by pressing or compressing in the cap. Known is an applicator configured to send air into the barrel in which the correction liquid is loaded, thereby positively increasing the internal pressure in the barrel to rapidly apply the correction liquid from the liquid coating port. (See Japanese Utility Model Laid-Open No. 6-12095). However, in the case of this conventional applicator, the disclosure specification No. 5
Paragraph number from page (0012) to paragraph number from page 6 (00
As described in 13), in the operation process of attaching the cap to the tip mouthpiece, the inner cylinder in the cap is brought into close contact with the outside of the tip mouthpiece to hermetically seal the inner cylinder to prevent air leakage. A space is created, and from there, the cap is pushed to the area where the tip fitting is completely covered, to compress and compress the air in the inner cylinder, and use the compressed air to the inner surface of the lip of the liquid application port. By retracting the abutting spherical applicator against the spring force of the spring so as to separate it from the same liquid applicator port, a gap is created between the edge of the liquid applicator port and the spherical applicator, and air is drawn from the gap. Is sent through the tip mouthpiece into the shaft cylinder, thereby positively pressurizing the inside of the shaft cylinder and utilizing the pressure to apply the correction fluid in the shaft cylinder into the spherical applicator of the tip mouthpiece. From the liquid application port by extruding and supplying (replenishing) to the mouth In which was set to be crab applied.

[0003]

However, in the case of the above-mentioned applicator, when the cap is attached to the tip mouthpiece during use once or several times, air is sent into the barrel to increase the internal pressure. Because it is configured to raise, if the correction fluid application state from the fluid application port becomes poor during the application of the correction fluid to the erroneous portion, it will be troublesome and troublesome every time. To attach the cap to
The internal pressure in the barrel must be increased. Further, in the past, since the cap is fitted to the tip fitting fairly tightly in order to improve the sealing property of the cap to the tip fitting, the fitting resistance is large and a considerable force is required for the operation. However, the operation is very difficult for a child or a relatively weak woman, and thus the handling is inferior.

The present invention has been made in view of such conventional circumstances. As a first object, the internal pressure in the shaft cylinder can be increased by a simple rotary operation, and the internal pressure is gradually changed. Correcting from the liquid application port by appropriately selecting the degree of increase in internal pressure in the shaft cylinder as the second purpose so that the correction liquid can be stably supplied (supplemented) to the liquid application port while keeping it constant by operation. A third object of the present invention is to provide an improved applicator capable of returning the internal pressure in the barrel to the initial normal pressure state after use so that the application amount of the liquid can be changed.

[0005]

To achieve the above object, the technical means taken by the present invention is to install a pressurizer inside a rear end side of a barrel for mounting a front end fitting on a front end opening. At the same time, the rear end is equipped with a rotating body that activates and retracts the pressurizer, and the pressurizer has a thickness that is substantially the same as the inner diameter of the barrel, and the rear end side is about one turn larger than the front end side. It is formed in a thin stepped tubular shape, and a cylindrical engaging groove or engaging convex pieces are provided at several points in the circumferential direction on the peripheral surface of the large diameter portion at the front end so that the inner surface of the shaft cylinder cannot rotate in the circumferential direction. It is slidably engaged in the cylinder direction, and on the peripheral surface of the rear end small diameter portion, a connecting groove is provided continuously in the peripheral direction at an appropriate inclination angle, while the rotating body is approximately the same as the inner diameter of the shaft cylinder. Is formed in a tubular shape having an inner diameter that allows insertion of the rear end small-diameter portion with a thickness that is the diameter, and the inner wall of the shaft tube faces the inner wall of the tubular wall. Provided with a bullet pieces to elastically, resilient for a predetermined at a tilt range including an inclined bottom and the inclined upper end of the interlocking grooves on the inner surface of the barrel in the circumferential direction several places in the piece
Protrusions that are elastically locked in a stepwise and disengageable manner with respect to each of the recesses provided at intervals are provided, and a protrusion that slidably engages with the connecting groove of the presser is provided on the inner surface of the rotating body. What is provided is the gist.

Further, in the circumferential direction, a pressurizer propelling section in which the connecting groove is inclined toward one side in the circumferential direction and a pressurizer returning section which connects the slanted upper end and the slanted lower end of the pressurizer propelling section in the cylindrical direction are provided. An applicator characterized by being configured by connecting them in a sawtooth shape.

Further, a pressurizing member is installed inside the rear end side of the shaft cylinder for mounting the tip end fitting at the front end opening so that the pressurizing member can be moved forward and backward. The pressurizer is formed in a stepped cylinder shape having a thickness that is substantially the same as the inner diameter of the shaft cylinder, and the rear end side is made thinner than the front end side by about one degree. Direction engaging grooves or engaging convex pieces are provided at several positions in the circumferential direction to engage with the inner surface of the shaft cylinder so as not to rotate in the circumferential direction and to be slidable in the cylinder direction,
On the peripheral surface of the small-diameter portion at the rear end, two types of pressurizer propulsion portions are formed, which are inclined toward both sides in the circumferential direction and at least one inclination angle or length is formed larger than the other inclination angle or length. While the connecting groove is continuously provided in a circular shape, the rotating body is formed in a tubular shape having an inner diameter capable of inserting and including the rear end small diameter portion with a thickness substantially the same as the inner diameter of the shaft cylinder, and its cylindrical wall. Is provided with an elastic piece that is elastic toward the inner surface side of the shaft cylinder, and the elastic piece is provided on the inner surface of the shaft cylinder so as to correspond to the respective inclined lower end and inclined upper end within the inclination range of the pressurizer propulsion portions. The gist of the present invention is to provide a convex portion that is elastically locked with respect to the concave portion that is provided so as to engage and disengage, and further provide a protrusion that is slidably engaged with the connecting groove on the inner surface of the rotating body.

Further, the gist of the present invention is to provide a display portion on the rear end peripheral surface of the shaft cylinder and the outer peripheral surface of the rotating body, the display section showing the amount of thrust of the pressurizer toward the front of the shaft cylinder.

[0009]

According to claim 1 of the present invention described above, the rotating body at the rear end of the shaft cylinder is present in the inclination direction of the connecting groove provided in the pressurizer and in the circumferential direction of the inner surface of the shaft cylinder. Rotate until the convex portion of the rotating body is elastically locked to the next concave portion. Then,
The protrusion of the rotating body, which is engaged with the connecting groove of the pressurizer to connect with the same pressurizer, has a projection in the circumferential direction of the shaft cylinder along the connecting groove of the pressurizer within the range in which the convex portion elastically locks with the recess. By moving it, the pressurizer is moved forward toward the front of the barrel in the tilt range of the connecting groove. The forward state of the pressurizer is held by elastically locking the convex portion of the rotating body with the concave portion. Then, when the rotating body is rotated so that the convex portion of the rotating body is elastically locked in stages with the concave portions existing in the circumferential direction of the inner surface of the shaft cylinder, the pressurizer moves toward the front of the shaft cylinder in the connecting groove. The sloping range from the lower end of the slope to the upper end of the slope is advanced stepwise. On the other hand, when the rotating body is rotated in the direction opposite to the above-mentioned rotating direction, the pressurizer is retracted by the projection within the inclination range of the connecting groove from the forward limit of the axial cylinder toward the front, and is returned to the rear end limit.

According to the second aspect of the present invention, by rotating the rotating body, the protrusion of the rotating body is engaged with the recesses of the inner surface of the shaft cylinder in a stepwise manner, and the protrusion is connected to the pressurizing member propulsion portion of the connecting groove. When the projection is moved along the circumferential direction of the shaft cylinder in a stepwise manner and moved to a region beyond the upper end of the tilt, the projection is moved from the upper end of the tilt by the pressurizer return part when the upper end of the tilt is exceeded. It is returned to the inclined lower end of the pressurizer propulsion unit. That is, the pressurizer is returned from the forward limit toward the front of the barrel to the initial rear end limit by the pressurizer return section.

According to the third aspect, the rotary body at the rear end of the shaft cylinder is
The convex portion of the rotating body is opposed to the concave portion existing in the forward or reverse direction toward the inclination direction of the pressurizer propulsion portion of any one of the connecting grooves having different inclination angles or different lengths and in the circumferential direction of the inner surface of the shaft cylinder. Turn until the pressure is locked. At this time, the protrusion of the rotating body that engages with the connecting groove of the pressurizer to connect with the same pressurizer moves in the circumferential direction of the shaft cylinder along the pressurizer propulsion unit side where the inclination angle or length of the connecting groove is small. In this case, the pressurizer is advanced toward the front of the barrel in the range of inclination from the inclined lower end to the inclined upper end of the pressurizer propulsion unit, and the advancement state is the elastic locking of the convex portion of the rotating body to the concave portion. Held by. When the protrusion of the rotating body moves in the circumferential direction of the shaft cylinder along the other pressurizer propulsion portion side where the connecting groove has a large inclination angle or length, the pressurizer propulsion having a small inclination angle or length. Since the inclination angle or the length is larger than that of the section side, the pressurizer is advanced toward the front of the barrel further than the forward limit of the pressurizer propelling section. That is, the volume in the shaft cylinder is further narrowed compared to the reduced state by the pressurizer propulsion unit side having a small inclination angle or length, and the internal pressure in the shaft cylinder is increased at once from the normal pressure state. On the other hand, when the rotating body is rotated in the opposite direction to the forward or reverse direction, the presser is retracted within the inclination range of the presser propulsion unit from the forward limit of the forward direction of the shaft cylinder, and the initial rear Returned to the end.

According to the fourth aspect, by rotating the rotating body in accordance with the display portion provided on the peripheral surface of the shaft cylinder and the outer peripheral surface of the rotating body,
The pressurizer can be advanced to each advance region toward the front of the barrel as described in claims 1 to 3.

[0013]

EXAMPLES An example of the embodiment of the present invention will be described below with reference to the drawings. The drawings show the inside of the rear end side of a barrel 1 in which a tip mouthpiece 2 is attached to the tip mouth and a correction fluid M is loaded inside. The pressurizing element 3 is provided inside the pressurizing element 3 so as to be able to move forward and backward, and the rotary body 4 for starting and moving the pressurizing element 3 forward and backward is attached to the rear end opening of the shaft cylinder 1, and the rotary body 4 is provided on the peripheral surface of the pressurizing element 3. Connection groove described later
By gradually rotating in the forward or reverse direction toward the inclination direction of 11, the pressurizer 3 is advanced stepwise toward the front of the barrel 1 to increase the internal pressure in the barrel 1 and to increase the pressure. A pen-type applicator configured to supply (supplement) the correction liquid M in the barrel 1 to the liquid application port 2a of the tip end device 2 is shown. Reference numeral 5 in the figure denotes a cap which is detachably attached to the tip mouthpiece 2.

The barrel 1, the tip end fitting 2, the pressurizing member 3 and the rotating body 4 are integrally molded by injection molding, and the barrel 1 has an appropriate length and thickness with the front and back opened. The tip mouthpiece 2 is molded and screwed and fixed to the tip mouth thereof, and the correction fluid M is loaded inside. A small-diameter portion 1-1 is provided in the middle portion of the inner surface on the rear end side of the cylinder in an appropriate length in the cylindrical direction, in which the pressurizer 3 having an inner diameter smaller than that of the other portion is closely fitted and slidably contacted. A cylindrical engaging groove 6 is provided at several positions in the circumferential direction on the inner surface on the rear end opening side of the small diameter portion 1-1, and a concave portion 7 is formed on the inner surface further on the rear end opening side of the engaging groove 6 in the circumferential direction. Provide in several places.

The engagement groove 6 internally supports the pressurizer 3 such that the pressurizer 3 cannot rotate in the circumferential direction but is slidable in the cylinder direction by engaging with an engaging convex piece 8 of the pressurizer 3 which will be described later. Indenter 3
At several points in the circumferential direction of the axial cylinder 1 extending in the forward / backward sliding range at appropriate intervals in the circumferential direction, and in the drawing at 90 ° intervals in the circumferential direction intersecting the axial core of the axial cylinder 1. Engaging projection pieces 8 provided at four positions and also provided on the circumferential surface of the pressurizer 3 at intervals of 90 ° are formed on the inner surface of the shaft cylinder 1 so as to slidably engage in the cylinder direction ( (See FIG. 3).

The concave portion 7 controls the rotation of the rotating body 4 step by step by engaging and disengaging elastically locking a convex portion 9 of the rotating body 4 which will be described later. That is, by elastically locking the rotation of the rotating body 4 in a stepwise manner, it serves to instruct a stepwise forward region (propulsion amount) of the pressurizing element 3 toward the front of the shaft cylinder 1. The two convex portions 9 provided on the circumferential surface in a 180 ° opposite positional relationship are divided into several times, and are elastically locked in a stepwise manner at a predetermined movement interval in the circumferential direction of the shaft cylinder 1 in the circumferential direction. It is provided at several places with a predetermined interval. In the drawing, the rotating body 4 is provided at a total of 8 positions including the portion where the rotating body 4 is elastically locked at the rotation starting point at intervals of 45 ° in the circumferential direction where the axis of the shaft cylinder 1 intersects. Returning to the starting point of rotation In the process of turning 180 °, the shaft cylinder 1 is arranged so that both the convex portions 9 are elastically locked in three stages.
It is arranged on the inner surface of (see FIG. 5).

The pressurizer 3 has a function of advancing toward the front of the shaft cylinder 1 by rotating the rotating body 4 to pressurize the internal pressure in the shaft cylinder 1, and the small diameter portion 1- of the shaft cylinder 1 The front end side is formed into a stepped cylindrical shape having a thickness approximately equal to the inner diameter of 1 and slightly larger than the rear end side, and the engaging groove 6 is formed on the peripheral surface of the front end large diameter portion 3-1. The engaging projection 8 extending in the cylinder direction that is slidably engaged in the cylinder direction is made to have the axis of the pressurizer 3 as an intersection.
It is provided at four places at 90 ° intervals. Also, its front end large diameter part 3-1
An airtight 10 is provided on the peripheral surface of the end portion of the above in close contact with the small diameter portion 1-1 to prevent leakage of the correction fluid M. Then, the peripheral surface of the rear end small diameter portion 3-2 is provided with a connecting groove 11 continuously provided in the circumferential direction at an appropriate inclination angle. The length of the engagement protrusion 8 in the cylinder direction is set to be shorter than the length of the engagement groove 6 in the cylinder direction to secure the forward / backward sliding range of the pressurizer 3. Also, the barrel 1
The close contact structure with the small diameter portion 1-1 on the inner surface, that is, the sealing structure for achieving the so-called sealing effect is not limited to the airtight 10, but the O ring 12 is fitted to the peripheral surface of the front end large diameter portion 3-1 as illustrated in FIG. It is also possible to install them around the circumference to achieve a sealing effect.

The connecting groove 11 serves to connect the rotating body 4 and the pressurizer 3 by engaging with a projection 13 of the rotating body 4 which will be described later, and the shaft cylinder 1 of the protruding body 13 accompanying the rotation of the rotating body 4. By moving the pressurizing element 3 in the circumferential direction, the pressurizing element 3 is moved forward toward the front of the barrel 1 and is retracted toward the rear of the barrel 1, and the forward / backward movement amount is controlled (set). Pressurizer propulsion unit 11-1 tilted toward one direction at an appropriate tilt angle
And a pressurizer return portion 11-2 that connects the inclined upper end and the inclined lower end of the pressurizer propulsion unit 11-1 in the cylindrical direction, and is continuously connected in a sawtooth shape in the circumferential direction.

The pressurizer propulsion unit 11-1 is a protrusion on the inner surface of the rotating body 4.
By engaging with 13, the circumferential movement of the rotating body 4 is converted into the cylindrical movement of the barrel 1 so that the pressurizer 3 moves forward with the rotation of the rotating body 4, and It plays a role of moving backward toward the rear of the shaft cylinder 1. A part of the peripheral surface of the pressurizer 3 is used as an inclined lower end, and is inclined at an appropriate inclination angle from the inclined lower end to the opposite side opposite 180 °. The pressurizing element 3 is spirally engraved on the small diameter portion 3-2 at the rear end of the pressurizer 3 with the opposite side portion being the inclined upper end. That is, the pressurizer propelling section 11-1 is engraved on the peripheral surface of the rear end small diameter section 3-2 within a radius range of 180 °, and is also provided on the inner surface of the rotating body 4 so as to face each other in a 180 ° relationship. The protrusions 13 are engaged with each other. Then, both pressurizer propulsion units 11-1 facing each other in the cylinder direction.
The tilted lower end and the tilted upper end are connected by the pressurizer return section 11-2.

The pressurizer returning portion 11-2 returns the projection 13 that has slid to the inclined upper end of the pressurizer propulsion portion 11-1 with the rotation of the rotating body 4 to the inclined lower end when it exceeds the inclined upper end. . That is, it has a role of automatically returning the pressurizer 3 that has been advanced stepwise toward the front of the shaft cylinder 1 from its forward limit to its backward limit, with the groove width of the pressurizer propulsion section 11-1. The rear end small-diameter portion 3- of the pressurizer 3 so that the upper end of the slope and the lower end of the slope are connected in the cylinder direction.
Carve on the circumference of 2 (see Fig. 6).

The rotating body 4 is a propulsion starting portion of the pressurizing element 3 for causing the pressurizing element 3 to move forward toward the front of the axial cylinder 1, and has a thickness substantially equal to the inner diameter of the axial cylinder 1. The indenter 3 has an inner diameter that allows the rear end small diameter portion 3-2 to be slidably inserted therein, and the rear end side is formed to have substantially the same diameter as the outer diameter of the shaft cylinder 1 to form the operation knob 4 -1 is formed in a stepped cylindrical shape, and a bullet piece 14 that is elastic toward the inner surface side of the shaft tube 1 is provided on the cylinder wall of the front end small diameter portion 4-2, and the bullet piece 14 has a shaft. A projection 9 for elastically engaging and disengaging with each recess 7 on the inner surface of the cylinder 1 is provided, and a projection 13 for slidably engaging both the pressurizer propulsion portions 11-1 is provided on the inner surface. .

The bullet piece 14 is formed on the peripheral surface of the front end small diameter portion 4-2 by notching and opening two opposed cylinder walls of the front end small diameter portion 4-2 of the rotating body 4 in a substantially U-shape toward the cylinder direction. The protrusions 9 are integrally formed on the surface of each of them, and the protrusions 9 are elastically engaged with the respective recesses 7 on the inner surface of the shaft cylinder 1 by the elastic action of the elastic pieces 14 so as to be elastically locked. Formed.

The protrusions 13 are formed so as to fit inside the connecting groove 11 and project in an opposed manner at an angle of 180 ° on the inner surface of the rotating body 4, and as the rotating body 4 rotates, the presser of the connecting groove 11 is pressed. Promotion Department 11-1
The slidable lower end of the shaft cylinder 1 is slid from the slanted lower end to the slanted upper end of the shaft, and the slidable upper end is slid from the slanted upper end to the slanted lower end of the shaft cylinder 1.

Further, as shown in FIG. 9, the rotating body 4 is provided on the peripheral surface of the rear end edge of the shaft cylinder 1 and the outer peripheral surface of the operation knob 4-1 of the rotating body 4.
In the process of rotating the rotating body 4 from the starting point of rotation to the starting point of rotation again by 180 ° by providing the display section 15 showing the stepwise rotation of The operation in which the convex portion 9 on the peripheral surface of the rotating body 4 is elastically locked in each concave portion 7 on the inner surface of the barrel 1 in three steps can be performed by turning the rotating body 4 according to the display unit 15. is there. That is, the pressurizing element 3 is advanced to the forward region of each stage toward the front of the shaft cylinder 1 to increase the internal pressure in the shaft cylinder 1, and the degree of increase in the internal pressure can be operated while observing the display unit 15. . The display part 15 is provided on the peripheral surface of the rear end edge of the shaft cylinder 1 in a positional relationship corresponding to the circumferential arrangement intervals of the recesses 7 on the inner surface thereof. Character 15-1 showing rise at each stage
And the operation knob 4-1 of the rotating body 4 that matches this character 15-1
15-2 provided on the outer peripheral surface of the.

By the way, in the liquid application port 2a of the tip mouthpiece 2 in this embodiment, the hollow tip 16 whose tip is drawn by metal or hard resin is press-fitted into the tip of the tip mouthpiece 2. The spherical tip 17 is rotatably provided in the hollow tip 16, and the rear end edge of the hollow tip 16 is drawn inward to lock the spring 18 to the edge. Is provided, and from this locking portion 19, the spherical coating
A spring 18 is elastically mounted on 17 so that the spherical coating 17 is elastically brought into contact with the inner surface of the edge of the liquid coating port 2a (see FIG. 8).

The cap 5 attached to the tip end fitting 2 is
An inner cap 5-1 is integrated with the inner bottom of the cap part 5-2 by elastically capping the outer circumference of the tip of the tip mouthpiece 2 to seal the hollow tip 16 (liquid application port 2a) from which the tip projects. In addition, a cleaner 20 made of urethane or the like is provided at the rear end of the cap portion 5-2, and the liquid application port 2a is rubbed by pressing the liquid application port 2a against the cleaner 20. It is designed to easily remove the adhesion correction fluid that adheres to the. Reference numeral 21 in the figure denotes a rod-shaped stirring tool which stirs the correction liquid M in the coaxial cylinder 1 which is made to exist in the shaft cylinder 1.

Next, the method of using the applicator of this embodiment having the above-described structure will be described. From the state shown in FIGS. 11 (a) and 2, the rotary body 4 at the rear end of the barrel 1 is attached to the outside thereof. Perimeter arrow
Rotate in the forward direction so that 15-2 matches the next character 15-1 from the character 15-1 at the starting point of rotation on the peripheral surface of the rear end edge of the shaft cylinder 1. Then, the convex portion 9 on the peripheral surface of the rotating body 4, which is elastically locked in the concave portion 7 on the inner surface of the barrel 1 existing at the starting point of rotation, is detached from the concave portion 7 and the next concave portion existing in the circumferential direction (rotational direction). It is elastically locked to 7 (state of Fig. 11 (b)). At this point, the protrusion 13 on the inner surface of the rotating body 4 is moved within the circumferential direction in which the convex portion 9 is elastically locked to the concave portion 7 from the inclined lower end of the pressurizing portion propelling portion 11-1 of the connecting groove 11 so as to propel the pressurizing element. The pressurizing element 3 is moved forward in the front direction of the shaft cylinder 1 by moving it in the circumferential direction of the shaft cylinder 1 along the inclination of the portion 11-1 (from the two-dot chain line state in FIG. 11 (b) to the solid line state). . As a result, the pressurizer 3 is moved to
The volume in the shaft cylinder 1 is reduced by the amount of forward movement in the range of 11-1 toward the front of the shaft cylinder 1, and the internal pressure in the coaxial cylinder 1 is increased. In this state, the liquid application port 2a of the tip end fitting 2 is pressed against the sheet surface N of the erroneous portion to apply the correction liquid M to the erroneous portion. Then, when the correction liquid M does not flow out from the liquid coating port 2a during the coating operation, the arrow 15-2 on the outer peripheral surface of the rotating body 4 is used.
By rotating the rotating body 4 step by step so that is aligned with the next character 15-1, the convex portion 9 is elastically locked in a stepwise manner with respect to the next concave portion 7 on the inner surface of the barrel 1 (FIG. 11 ( With the state of (c) and the state of (d)), the projection 13 is further moved in the circumferential direction of the axial cylinder 1 along the inclination of the pressurizer propulsion portion 11-1 to move the pressurizer 3 to the axial cylinder 1.
Forward toward. Therefore, the pressurizer 3 is further advanced in the inclination range of the pressurizer propulsion unit 11-1 toward the front of the shaft cylinder 1 by the rotation of the rotating body 4 in each step, and the volume in the shaft cylinder 1 is gradually increased. The internal pressure in the coaxial cylinder 1 is increased by narrowing (see FIG. 7). On the other hand, after the work of applying the erroneous portion is completed, the rotary body 4 is further rotated from the upper end of the inclination of the pressurizer propulsion unit 11-1 shown in FIG. That is,
When the rotator 4 is rotated 180 ° and returned to its starting point of rotation again, the projection 13 of the rotator 4 is disengaged from the upper end of the tilt of the pressurizer propulsion unit 11-1 and engaged with the pressurizer return unit 11-2. As a result, the engagement that propels the pressurizer 3 toward the front of the barrel 1 is released, and the pressurizer 3 is returned to the backward limit of the rear of the barrel 1 by the internal pressure in the barrel 1. That is, the protrusion 13 of the rotating body 4
Is in a state in which the pressurizer return section 11-2 is slid and automatically returned to the inclined lower end of the pressurizer propulsion section 11-1 (state of FIG. 11 (a)), and internal pressure is applied to the inside of the barrel 1. The former normal pressure state is restored (state of FIGS. 1 and 2).

Therefore, according to the applicator of this embodiment, when the correction liquid M is not easily discharged during the coating operation, the correction tool M is adjusted to the character 15-1 on the peripheral surface of the rear end edge of the shaft cylinder 1, External peripheral arrow 15-2
By rotating the rotating body 4 in stages so that
Since the inner pressurizer 3 can be gradually advanced forward and the inner pressure in the barrel 1 can be raised, the liquid application port 2a of the tip mouthpiece 2 can be erroneously written while keeping the inner pressure constant. The correction liquid M can be stably supplied (supplemented) in a state in which the correction liquid M does not run out during the coating operation. Moreover, after the coating work is completed, the rotating body 4 is further rotated to the starting point of the rotation, thereby returning the pressurizer 3 to the initial retreat limit of the rear end of the barrel 1 and before the internal pressure is applied inside the barrel 1. Since it can be returned to the normal pressure state, there is no concern that the correction fluid M will inadvertently come out of the fluid application port 2a of the distal end mouthpiece 2.

12 to 14 show that the rotating body 4 at the rear end of the shaft cylinder 1 is rotated in the forward or reverse direction from the starting point of rotation thereof, respectively.
The amount of advance of the pressurizer 3 toward the front of the barrel 1 is divided into two stages. More specifically, as described above, the degree of increase in the internal pressure that increases the internal pressure by advancing the pressurizer 3 is divided into two stages, that is, a low pressure state and a high pressure state in which the internal pressure is increased to the maximum at once. Another embodiment is shown in which the correction liquid M is applied in a small amount and a large amount can be appropriately selected. In the case of such an embodiment, the recess 22 is provided on the inner surface of the barrel 1. Since the configuration is basically the same as the detailed description of the above-mentioned embodiment except for the configuration of the connecting groove 23 with respect to the circumferential surface of the pressurizer 3, the same reference numerals will be used for the same components to explain the same. Omit it.

However, in the case of such an embodiment, the concave portions 22 for elastically locking the respective convex portions 9 of the peripheral surface of the rotating body 4 are elastically locked to the inner peripheral surface of the barrel 1 and the circumference of the barrel 1 where the axis of the barrel 1 intersects. It should be placed at four places including the rotation starting point of the rotating body 4 at 90 ° intervals in the direction (Fig. 12).
90) in the forward or reverse direction from the starting point of rotation.
By rotating it by a degree, the convex portion 9 is separated from the concave portion 22 at the starting point of rotation and elastically locked to the concave portions 22 existing at 90 ° intervals.

The connecting groove 23 is a small-diameter portion at the rear end of the pressurizer 3.
Two types of pressurizer propulsion units 23-1, 23-2, which are inclined in both circumferential directions on the peripheral surface of 3-2 and in which the inclination angle or length of the other is larger than the inclination angle or length of the other Are connected in a substantially V shape. The relationship between the inclination angle theta ₂ of the inclination angle theta ₁ and the pressurizer propulsion unit 23-2 of the pressurizer propulsion unit 23-1 and θ _{1 <θ 2} in the illustrated example, the length (of the pressurizer 3 circumferential direction of the The relationship between the lengths is 90 degrees in both cases.
_{As 1} = L ₂ , the protrusion 13 of the rotating body 4 rotates 90 ° in the forward rotation direction (clockwise direction) in which the projection 13 of the rotating body 4 moves in the circumferential direction of the shaft cylinder 1 along the pressurizer propulsion portion 23-1. Thus, the amount of advancement of the pressurizer 3 toward the front of the barrel 1 is suppressed, and the pressurizer propulsion unit
By rotating the rotating body 4 90 ° in the reverse direction (counterclockwise direction) of moving in the circumferential direction of the shaft cylinder 1 along 23-2, the pressurizer 3 is advanced to the maximum at one stroke toward the front of the shaft cylinder 1. It is configured like this.

Further, as illustrated in FIG. 13, the display portion 15 including the above-mentioned character 15-1 and the arrow 15-2 is provided on the rear end peripheral surface of the shaft cylinder 1 and the outer peripheral surface of the rotating body 4. By providing and rotating the rotating body 4 in accordance with the display unit 15, the protrusions 13 are moved to the respective pressurizer propulsion units 23-1 and 23-2 having different inclination angles to move the pressurizer 3 to the axial cylinder. It is possible to move forward to each forward zone.

Thus, according to the applicator of such an embodiment,
From the state (14) (14), change the rotating body 4 at the rear end of the barrel 1
When the convex portion 9 is rotated in the forward rotation direction (on the side of the character (small) 15-1) until the convex portion 9 is elastically locked to the concave portion 22 on the inner surface, the protrusion on the inner surface of the rotating body 4 is formed.
Reference numeral 13 moves in the circumferential direction of the barrel 1 toward the inclination direction of the pressurizer propulsion portion 23-1 of the connecting groove 23. Then, the pressurizer 3 is advanced toward the front of the barrel 1 in the inclination range from the inclined lower end to the inclined upper end of the pressurizer propulsion portion 23-1 (from the state of the two-dot chain line in (b) of FIG. 14 to a solid line). State), the forward state is the rotating body 4
The convex portion 9 is held by being elastically locked to the concave portion 22. As a result, the pressurizer 3 is moved forward toward the front of the shaft cylinder 1 in the tilt range of the pressurizer propulsion portion 23-1, and thus the shaft cylinder 1 is moved.
The internal volume is reduced, and the internal pressure in the coaxial cylinder 1 is increased.
Then, from the state of (a) in FIG. 14, when the rotating body 4 is rotated in the reverse direction (on the side of the character (large) 15-1) until the convex portion 9 is elastically locked to the concave portion 22 on the inner surface of the shaft cylinder 1 as well. , The projection 13 is connected to the groove 23
It moves in the circumferential direction of the barrel 1 along the pressurizer propulsion portion side 23-2. As a result, since the pressurizer 3 has a larger inclination angle than the pressurizer propulsion unit 23-1 side having a small inclination angle, the pressurizer 3 is further forward of the shaft cylinder 1 than the propelling amount by the pressurizer propulsion unit 23-2 side. It is advanced toward (from the state of the two-dot chain line in (c) of Fig. 14 to the state of the solid line). As a result, the internal pressure in the barrel 1 is suddenly increased from the normal pressure state.

Therefore, according to the applicator of this embodiment, for example, when correcting a character, the rotating body 4 is rotated to the character (small) 15-1 side of the rear end peripheral surface of the barrel 1 and added. By advancing the indenter 3 forward of the shaft cylinder 1 within the inclination range of the pressurizer propulsion unit 23-1, the amount of the correction liquid M can be suppressed to a small amount and discharged from the liquid application port 2a with the amount of coating required for character correction. it can. When the correction is necessary in a wide range such as the drawing, the rotary body 4 is turned to the character (large) 15-1 side of the rear end peripheral surface of the shaft cylinder 1 to move the pressurizer 3 to the pressurizer propulsion unit 23-2.
By advancing to the front of the barrel 1 in the inclination range, it is possible to dispense a large amount of the correction liquid M from the liquid coating port 2a with a coating amount that can be effectively corrected in a wide range correction such as drawings.

In this embodiment, after the coating operation on the erroneous portion is completed, the rotating body 4 is rotated in the opposite direction to the above-mentioned rotating direction, so that the protrusions 13 are moved to the respective pressurizer propulsion portions. twenty three
-1, 23-2 is designed to return from the upper slope to the lower slope. That is, each pressurizer propelling section 23-1,
It is designed to be retracted within the range of 23-2 and returned to the original rear end limit. As a result, the inside of the barrel 1 is returned to the initial normal pressure state before the internal pressure is applied.

The pressurizer propulsion units 23-1, 23-2 have a relationship in which the inclination angle is θ ₁ = θ ₂ and the length relationship is L ₁ <L _2. Of course, it is also possible to configure so that the forward movement amount (propulsion amount) can be changed. For example, the pressurizer propulsion unit 23-1 side may have a rotation range length of 90 °, and the pressurizer propulsion unit 23-2 side may have a rotation range length of 180 °, and the selection is free.

[0037]

Since the applicator of the present invention is constructed as described above, it has the following operational effects. ． According to the first aspect of the present invention, the rotary body at the rear end of the shaft cylinder is directed toward the inclination direction of the connecting groove provided in the pressurizer, and the convex portion of the rotary body is present with respect to the next recessed portion existing in the circumferential direction of the inner surface of the shaft cylinder. By rotating the pressurizer until it elastically locks, the presser moves in the tilting range of the connecting groove in the circumferential direction of the barrel so that it slides from the tilting lower end to the tilting upper end. The forward direction of the pressurizer is maintained by elastically locking the convex portion of the rotating body with respect to the concave portion. As a result, since the pressurizer advances toward the front of the barrel in the range of the inclination of the connecting groove, the volume in the barrel is narrowed, so that the internal pressure in the barrel rises. Further, by rotating the rotating body so that the convex portion of the rotating body is elastically locked in stages with the next concave portion existing in the circumferential direction of the inner surface of the barrel, the presser is stepped toward the front of the barrel. Since it is moved forward within the range of inclination of the connecting groove, the volume inside the shaft cylinder is gradually reduced by the pressurizer, and the internal pressure inside the shaft cylinder also rises stepwise with it. On the other hand, by rotating the rotating body in the direction opposite to the above-mentioned rotating direction, the pressurizer is gradually retracted by the projection in the inclination range of the connecting groove from the forward limit of the forward direction of the barrel, and finally the initial pressure is reduced. Since it is returned to the rear end limit, the inside of the shaft cylinder can be returned to the initial normal pressure state before the internal pressure is applied.

.. According to a second aspect of the present invention, by rotating the rotating body, the projections of the rotating body are locked stepwise with respect to the recesses of the inner surface of the barrel while the projections are aligned with the pressurizer propulsion portion of the connecting groove. When the protrusion is moved in a stepwise manner in the circumferential direction and further moved to a region beyond the inclined upper end, when the protrusion exceeds the inclined upper end of the pressurizer propulsion unit, the protrusion is moved from the inclined upper end to the pressurizer return unit by the pressurizer return unit. It is automatically returned to the bottom of the slope. That is, since the pressurizer is automatically returned to the initial rear end limit by the pressurizer return section from the forward limit of the front of the barrel, the inner pressure in the barrel can be reduced by rotating the rotor in the same direction. It is possible to raise the pressure stepwise, or to return to the initial normal pressure state before the internal pressure is applied inside the shaft cylinder.

.. According to the third aspect, the rotating body at the rear end of the shaft cylinder is rotated in the forward or reverse direction toward the tilting direction of one or the other of the connecting grooves having different tilt angles or different lengths on the side of the pressurizer propulsion unit, and the shaft cylinder. By rotating until the convex portion elastically locks against the circumferential concave portion of the inner surface, the pressurizer is moved from the inclined lower end to the inclined upper end within the circumferential inclination angle or length range of one or the other pressurizer propulsion portion. The projection of the rotating body that moves in the circumferential direction of the barrel as if sliding toward it is advanced forward of the barrel,
The degree of increase in internal pressure in the barrel that changes according to the amount of forward movement can be appropriately selected according to the purpose of correction such as character correction and wide range correction of drawings and the like. That is, the coating amount of the correction liquid can be appropriately selected from the liquid coating port according to the purpose of correction.

.. According to claim 4, by rotating the rotating body according to the display portion provided on the peripheral surface of the shaft cylinder and the peripheral surface of the rotating body,
As described in the above claims 1 to 3, the pressurizer can be advanced to each advance region toward the front of the barrel.

Therefore, according to the applicator of the present invention, by rotating the rotating body at the rear end of the shaft cylinder, the pressurizer in the shaft cylinder can be moved forward and the internal pressure in the coaxial cylinder can be increased. Since it is possible, it becomes a simple applicator that is easy to handle. Moreover, by rotating the rotating body stepwise, the internal pressure can be continuously maintained under pressure, so that the correction liquid that does not run out such as the correction liquid is cut off during the coating operation on the erroneous portion can be made. A stable supply (replenishment) can be realized, and the applicator has excellent practicability.
Further, since the inside of the shaft cylinder can be returned to the initial normal pressure state when not in use, there is no fear that the correction fluid will inadvertently come out of the liquid application port of the tip end fitting. Furthermore, by changing the direction of rotation of the rotating body, the degree of increase in internal pressure in the barrel can be appropriately selected according to character correction and wide range correction such as drawings, so it is very convenient and versatile. It becomes a tool.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an example of an embodiment of the applicator of the present invention.

FIG. 2 is an enlarged sectional view showing a main part.

FIG. 3 is a cross-sectional view taken along the line III-III in FIG.

4 is a cross-sectional view taken along the line IV-IV in FIG.

5 is a cross-sectional view taken along the line VV of FIG.

FIG. 6 is an exploded perspective view showing a state in which the rotating body and the pressurizer are taken out from the barrel.

FIG. 7 is an enlarged cross-sectional view of a main part showing a state in which the pressurizer is advanced from the backward limit to the forward limit of FIG.

FIG. 8 is an enlarged cross-sectional view showing a liquid application port of the tip fitting.

FIG. 9 is a perspective view showing a display form of a display unit with respect to a peripheral surface of a shaft cylinder and a peripheral surface of a rotating body.

FIG. 10 is a cross-sectional view showing another embodiment.

FIG. 11 is a schematic view showing the movement of the protrusion on the inner surface of the rotor with respect to the connecting groove on the peripheral surface of the pressurizer as the rotating operation of the rotating body is expanded.

FIG. 12 is a cross-sectional view showing another embodiment along the line VV of FIG.

FIG. 13 is a perspective view of another embodiment showing a display form of a display unit with respect to a shaft cylinder peripheral surface and a peripheral surface of a rotating body according to another embodiment.

FIG. 14 is a schematic view of another embodiment showing the movement of the protrusion on the inner surface of the rotor with respect to the connecting groove on the peripheral surface of the pressurizer as the rotating body rotates.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Shaft cylinder 2 ... Tip fitting 2a ... Liquid application port 3 ... Pressurizer 4 ... Rotating body 5 ... Cap 6 ... Engagement groove 7 ... Recessed portion 8 ... Engagement protruding piece 9 ... Convex portion 11, 23 ... Connecting groove 11 -1, 23-1, 23-2 ...
Pressurizer propelling section 11-2 ... Pressurizer returning section 13 ... Protrusion 14 ... Strip 15 ... Display section

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) B05C 17/005 B43K 7/03 B43L 19/00

Claims (4)

(57) [Claims] 1. A pressurizing member is installed inside the rear end side of a shaft cylinder for mounting a tip mouthpiece at a front end opening so as to be able to move forward and backward, and a rotating body for starting and moving back the pressurizing member is mounted at a rear end opening. The pressurizer is formed in a stepped cylinder shape having a thickness that is substantially the same as the inner diameter of the shaft cylinder, and the rear end side is made thinner than the front end side by about one degree. Direction engaging grooves or engaging projections are provided at several positions in the circumferential direction so as to engage with the inner surface of the axial cylinder so as to be non-rotatable in the circumferential direction and slidable in the cylindrical direction, and to the circumferential surface of the rear end small diameter portion. Is provided with a connecting groove which is continuously provided in the circumferential direction at an appropriate inclination angle, while the rotating body is a cylinder having an inner diameter capable of inserting and including the rear end small diameter portion with a thickness substantially equal to the inner diameter of the shaft cylinder. And a connecting piece formed on the inner surface of the shaft tube, the elastic piece being elastically formed toward the inner surface of the shaft tube on the tube wall. In the range of inclination including the inclined lower end and the inclined upper end, convex portions that are elastically locked in a stepwise and disengageable manner are provided with respect to the concave portions that are provided at predetermined positions in the circumferential direction at predetermined intervals. An applicator characterized in that a protrusion for slidably engaging with the connecting groove is provided on the inner surface of the. 2. The applicator according to claim 1, wherein the pressurizing member propelling portion having the connecting groove slanted toward one side in the circumferential direction, and the slanting upper end and the slanting lower end of the pressurizing member propelling portion are connected in the cylindrical direction. An applicator characterized by being constituted by connecting a pressurizer return portion in a sawtooth shape in the circumferential direction. 3. A pressurizer is installed inside the rear end side of a shaft cylinder for mounting a tip mouthpiece at the front end so that the pressurizer can be moved forward and backward, and a rotating body for moving the pressurizer forward and backward is mounted at the rear end. The pressurizer is formed in a stepped cylinder shape having a thickness that is substantially the same as the inner diameter of the shaft cylinder, and the rear end side is made thinner than the front end side by about one degree. Direction engaging grooves or engaging projections are provided at several positions in the circumferential direction so as to engage with the inner surface of the axial cylinder so as to be non-rotatable in the circumferential direction and slidable in the cylindrical direction, and to the circumferential surface of the rear end small diameter portion. Is a connecting groove in which two types of pressurizer propulsion portions are inclined in both directions in the circumferential direction and at least one inclination angle or length is formed larger than the other inclination angle or length and are connected in a substantially V shape. On the other hand, the rotating body has an inner diameter that is approximately the same as the inner diameter of the shaft cylinder and is capable of internally inserting the small diameter portion at the rear end. A cylindrical piece that is formed into a cylindrical shape and has an elastic piece that is elastic toward the inner surface of the shaft cylinder on the cylindrical wall,
The projecting piece is provided with a convex portion on the inner surface of the shaft cylinder, which is elastically and elastically locked with respect to a concave portion provided corresponding to each of the slanted lower end and the slanted upper end within the slanting range of the pressurizer propulsion portions. An applicator characterized in that a projection for slidably engaging with the connecting groove is provided on the inner surface of the rotating body. 4. The applicator according to any one of claims 1 to 3, wherein the amount of propulsion of the pressurizer forward of the shaft cylinder is displayed on the rear end peripheral surface of the shaft cylinder and the outer peripheral surface of the rotating body. An applicator characterized in that it is provided with a display section.