JP4812202B2 - Cartridge for batting - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cartridge filling cartridge for storing a filling for storing ink or a coating liquid, such as a writing instrument or an applicator.
[0002]
[Prior art]
A writing instrument is one in which ink is placed on a writing surface such as a paper surface with a writing tip at the tip of the writing instrument body or a pen tip, and the ink reservoir that stores the ink supplied to the writing tip within the writing instrument body cylinder The part includes a batting type in which ink is impregnated into a fiber body and a raw ink type in which raw ink is stored in a tank.
Here, the batting type storage section includes a batting exchange structure in which the ink is replaced with a new ink cartridge after the ink is used, and such a writing instrument is referred to as a batting exchange type writing instrument. In the batting exchange type writing instrument, the barrel of the writing instrument main body is screwed together, and the barrel is opened by turning the screw to remove the used batting (cartridge), and then the unused batting is attached to the barrel. The body is closed by fitting.
[0003]
In such a batting exchange-type writing instrument, a container (cartridge shaft) for storing unused batting in a sealed manner is used. As shown in FIG. 5, the batting a is housed in the cartridge shaft b, and a cap c is fitted to the mouth of the cartridge shaft b to seal it. When removing the cap c from the cartridge shaft b when replacing the batting a, normally, the cap c is pulled from the cartridge shaft b in the longitudinal direction, the fitted seal portion d is opened, and the cap c is removed. Yes.
Here, in the cartridge, a convex portion is provided on one side of the cartridge shaft or the cap, and sealing is performed by fitting and contacting the other flat portion. However, in the seal between the convex part and the flat surface, the adhesive force may decrease due to plastic deformation over time, or the cap may float due to expansion of the sealed internal gas due to temperature rise. A hooked portion is provided so as not to come off when fitted to the circumferential convex portion or concave portion of the part opposite to the circumferential convex portion.
[0004]
[Problems to be solved by the invention]
However, in order to improve the sealing force, if the fitting of the seal part d is strengthened, the pulling force increases, and the batting that has been stored in the shaft pops out from the shaft or the ink splashes unintentionally. Or problems with your hands.
In particular, there is a kind of ink solvent in which the gas inside the cartridge expands greatly due to temperature change and the pressure change is large. When this kind of solvent ink is used, the adhesion of the seal portion d is increased. In addition to raising the height, it is necessary to increase the size of the catch portion of the unevenness, and the problem that the padding pops out or the ink scatters due to the increased fitting force.
[0005]
The present invention has been made by paying attention to the above-mentioned problems of the prior art, and can be gently opened without pulling the cap that seals the cartridge shaft. It is an object of the present invention to provide a batting exchange type cartridge capable of preventing scattering.
[0006]
[Means for Solving the Problems]
The present invention is a cartridge for storing a batting for storing ink or a coating liquid such as a writing instrument or an applicator,
A container-like cartridge shaft, one of which is opened as a batting storage container, and a cap that fits and seals the open end of the cartridge shaft;
A seal part is formed on the cartridge shaft and the cap fitting part to maintain airtightness when fitted in the circumferential direction, and a convex part protruding in the cartridge shaft longitudinal direction is formed on one of the cartridge shaft and the cap. Forming a concave portion that is an inverted trapezoidal cam shape for guiding the convex portion;
A plurality of first ribs that are axially continuous from the closed bottom to the center of the cartridge shaft are arranged in the circumferential direction and are supported by the first ribs so that the padding does not rattle within the cartridge shaft. And a plurality of second ribs that are axially continuous from the closed bottom portion to the open portion are arranged in the circumferential direction, and the inner ribs are rattled in the cap by the second ribs. It can be pinched so that there is no
When the cartridge shaft and the cap are rotated relative to each other, the slopes of the convex portion and the concave portion slide so that the cap moves in the length direction of the cartridge shaft, and at the outer peripheral surface of one or both of the cartridge shaft and the cap. A cartridge for storing batting, wherein an uneven portion that reduces slippage when gripping and turning is formed in an axial direction .
[0007]
According to the present invention having the above-described configuration, by rotating the cartridge cap and the cartridge shaft relative to each other , the cam structure exhibits a function in the protruding convex portion and the concave portion having the inverted trapezoidal cam shape of the guide. Released from the cartridge shaft. With this structure, when the cartridge cap is opened during use and the seal portion is opened, the force for opening the shaft in the longitudinal direction does not work directly but works in the radial direction, so the cartridge cap is opened from the cartridge shaft. Therefore, the batting and the ink therein are not scattered.
Further, particularly from the formed concavo-convex portions to reduce the slip when turning grasp one or both the outer peripheral surface of the cartridge and cap (e.g. a groove shape along the axial direction or mountain range formed in the shape concave-convex portion) In use, the cartridge cap can be easily rotated to be released from the cartridge shaft, and the uneven portion can be visually recognized, so that the usage method can be easily recognized.
In addition, with this structure, the cap can be easily opened with a little force, so the fitting force of the cap can be increased, and by providing protrusions protruding in the radial direction, It is possible to increase the fitting force. Therefore, it is possible to reduce the possibility that the cap is removed due to a temperature rise inside the cartridge or an external impact.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1A and 1B are explanatory diagrams of a batting exchange type cartridge applied to the embodiment of the present invention, FIG. 2 is a configuration explanatory diagram of a cartridge shaft, FIG. 3 is an explanatory diagram of a cap, and FIG. It is explanatory drawing of cap mounting.
[0009]
As shown in FIG. 1 to FIG. 3, the batting exchange type cartridge of the embodiment is a cartridge 12 that houses a batting 10 that stores ink or a coating liquid such as a writing instrument or an applicator, and the cartridge 12 is a batting container. As shown in the figure, a container-shaped cartridge shaft 14 that is open at one end and a cap 16 that is fitted and sealed to the open end portion 14a of the cartridge shaft 14 are sealed. A seal portion 14b and a seal portion 16b are formed to maintain airtightness when fitted in the direction, a convex portion 18 protruding in the longitudinal direction is formed on one cap 16, and the convex portion 18 is formed on the other cartridge shaft 14. When the cartridge shaft 14 and the cap 16 are rotated relative to each other by forming the concave portion 20 for guiding the cartridge, the inclined surfaces of the convex portion 18 and the concave portion 20 slide to cap each other. 16 is obtained so as to move in the longitudinal direction of the cartridge axis 14.
In the embodiment, an uneven portion 24 extending in the axial direction is formed on the outer peripheral surface of the cap of the cartridge shaft 14 and the cap 16.
[0010]
In detail, as shown in FIGS. 1-3, the said batting 10 can use various things, such as a fiber with a cylindrical shape, a porous body, and a sponge body.
As shown in detail in FIG. 2, the cartridge shaft 14 is a container having a substantially cylindrical shape with one end closed, and is continuous in the axial direction on the inner peripheral surface portion from the closed bottom portion to the central portion. The ribs 26 are arranged in a plurality of circumferential directions, and the filling 10 can be supported by the ribs 26 in the cartridge shaft 14 so as not to be loose. Further, on the inner peripheral surface portion of the open end (14a) of the cartridge shaft 14, a plurality of annular ribs are formed over the entire circumference in the inner peripheral direction as the uneven portion 14b. Furthermore, a substantially inverted trapezoidal cut is formed as the recess 20 at the edge of the open end of the cartridge 14 shaft, and has a cam shape (the recess shown in the cam development view of (c)). Is formed).
[0011]
As shown in FIG. 3, the cap 16 is a container having a substantially short cylindrical shape with one end closed, and the inner peripheral surface portion extends from the closed bottom to the vicinity of the open portion and continues in the axial direction. The ribs 28 are arranged in a plurality of circumferential directions, and the batting 10 can be sandwiched by the ribs 28 in the cap 16 so that there is no backlash. In addition, on the outer peripheral surface portion of the open end 16a of the cap 16, an annular rib to be fitted as the seal portion 16b is formed over the entire circumference in the outer peripheral direction.
Furthermore, the edge of the open end portion 16a of the cap 16 shaft is formed as the convex portion 18 having a substantially trapezoidal shape, and has a cam shape (the shape shown in the cam development view of (e)). A convex portion 18 is formed).
[0012]
According to this embodiment having the above-described configuration, as shown in FIG. 4, the cam structure of the protruding convex portion 18 and the guiding concave portion 20 functions by rotating the cap 16 and the cartridge shaft 14 of the cartridge 12 relative to each other. The cap 16 is released from the cartridge shaft 14. With this structure, when the cap 16 is opened and the seal portions 14b and 16b are opened in the cartridge at the time of use, the force for opening the shaft in the longitudinal direction does not work directly but acts in the radial direction. The cartridge cap is opened, so that the batting 10 and the ink therein are not scattered. When the cartridge 12 is opened, the batting may be left on the cap 16 side as shown in FIG. 4A or on the cartridge shaft 14 side as shown in FIG. 4B.
[0013]
In the embodiment, the concave / convex portion 24 is formed along the axial direction that eliminates slippage when gripping and rotating on the outer peripheral surface of the cap, so that the cap 16 can be easily rotated and released from the cartridge shaft 14 during use. In addition, since the longitudinal grooves are clear, it is easy to recognize the usage method.
Further, with this structure, the cap 16 can be easily opened with a little force, so that the fitting force of the cap 16 to the cartridge shaft 14 can be increased, and a projecting portion protruding in the radial direction is provided. The fitting force can be increased by riding the protrusions of the parts. Therefore, it is possible to reduce the possibility that the cap 16 is detached due to a temperature rise inside the cartridge 12 or an external impact.
[0014]
In addition, this invention is applicable also to a batting type applicator other than a batting type writing instrument.
[0015]
【The invention's effect】
As described above, according to the present invention, in the batting exchange type cartridge, it can be gently opened without pulling the cap that seals the cartridge shaft, and the batting stored in the shaft pops out or the ink scatters. Can be prevented.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view for explaining a batting exchange type cartridge applied to an embodiment of the present invention, in which (a) is a sectional view taken along line AA of (b), and (b) is a side view.
2A and 2B are configuration explanatory views of a cartridge shaft, wherein FIG. 2A is a sectional view taken along line AA of FIG. 2B, FIG. 2B is a side view, and FIG. 2C is an axial view seen from an open end; (D) is a cam development view.
FIGS. 3A and 3B are explanatory diagrams of a configuration of a cap, wherein FIG. 3A is a cross-sectional view taken along line AA in FIG. 3B, FIG. 3B is a side view of the entire cap, and FIG. FIG. 4D is an axial view seen from the cap closed end, and FIG.
FIGS. 4A and 4B are explanatory views of attaching a cap to a cartridge shaft, in which FIG. 4A shows an example in which a batting is left on the cap without rotating the cap relative to the cartridge shaft, and FIG. This is an example in which batting is left in the body.
FIG. 5 is an explanatory diagram of an example in which a conventional cam portion of a concave portion and a convex portion is not provided and a cap is attached to a cartridge shaft.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Filling 12 Cartridge 14 Cartridge shaft 14b Seal part 16 Cap 16b Seal part 18 Convex part 20 Concave part 24 (Unslip) uneven part

Claims (1)

A cartridge for storing padding for storing ink or application liquid such as a writing instrument or applicator,
A container-like cartridge shaft, one of which is opened as a batting storage container, and a cap that fits and seals the open end of the cartridge shaft;
A seal part is formed on the cartridge shaft and the cap fitting part to maintain airtightness when fitted in the circumferential direction, and a convex part protruding in the cartridge shaft longitudinal direction is formed on one of the cartridge shaft and the cap. Forming a concave portion that is an inverted trapezoidal cam shape for guiding the convex portion;
A plurality of first ribs that are axially continuous from the closed bottom to the center of the cartridge shaft are arranged in the circumferential direction and are supported by the first ribs so that the padding does not rattle within the cartridge shaft. And a plurality of second ribs that are axially continuous from the closed bottom portion to the open portion are arranged in the circumferential direction, and the inner ribs are rattled in the cap by the second ribs. It can be pinched so that there is no
When the cartridge shaft and the cap are rotated relative to each other, the slopes of the convex portion and the concave portion slide so that the cap moves in the length direction of the cartridge shaft, and at the outer peripheral surface of one or both of the cartridge shaft and the cap. A cartridge for storing batting, characterized in that an uneven portion for reducing slippage when formed by gripping and turning is formed in the axial direction .

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