JPH0624677B2 - Powder applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a nib attached to a front end portion of a barrel, which has a proper particle size and which is contained in the barrel and has an appropriate particle size. The present invention relates to a powder applicator that can be supplied.

(Prior art and its problems) Liquids having various viscosities are housed in a barrel and can be supplied to a pen tip attached to the front end of the barrel. A pressure type that pressurizes the liquid directly with a piston or air to forcibly supply it to the pen tip, and a natural derivation that draws liquid to the pen tip using so-called bellows or a relay core by utilizing capillary action. The former pressure equation is effective when the viscosity of the liquid is high, and the natural derivation equation of the latter is effective when the viscosity of the liquid is low.

However, it is difficult to supply an appropriate amount of powder of any particle size to the pen tip by the above-mentioned pressurization method or natural derivation method, which has been conventionally known. It was limited to the case where the powder to be used had physical properties close to those of liquid.

In view of this, the present invention provides a powder applicator capable of reliably supplying an appropriate amount of powder for cosmetics, writing, etc., having an appropriate particle size to a pen tip.

(Structure of the Invention) The present invention includes a barrel having a pen tip attached to a front end thereof, a storage pipe that is piped in the barrel and that stores powder to be supplied to the pen tip, a cross section having a wide width, and a tip also. It is wide and has a continuous inclined surface in a spiral shape, and is formed by a spiral body that is inserted into the storage tube and has the wide tip located at the front end portion of the powder supply hole to the pen tip. A powder applicator in which the powder contained in a storage tube can be sequentially guided forward by a spiral inclined surface of the spiral to be supplied to a pen tip by relatively rotating the spiral. It is what

(Examples) Hereinafter, the present invention will be described in detail based on Examples.

1 to 3, a pen tip 2 capable of containing and applying powder, which will be described later, is attached to a front end portion of a barrel 1. In the illustrated example, the pen tip 2 shows a brush-like one in which natural and synthetic fibers are bundled, but a porous elastic body such as a sponge or a synthetic rubber provided with appropriate cuts may be used. Reference numeral 3 denotes a cylindrical storage tube in which the front small diameter portion 5 is fitted and fixed in all the holes 4 of the shaft cylinder 1, and the storage tube 3 stores powders for cosmetics, writing, etc., having an appropriate particle size. The contained powder is
The powder is supplied from the powder supply hole (the front small diameter 5 itself in the illustrated example) to the pen tip 2. Reference numeral 6 denotes a spiral body having a continuous inclined surface 7 in a spiral shape. The spiral body 6 has a rear end portion press-fitted and fixed to an operation knob 8 rotatably fitted to the lower end portion of the shaft cylinder 1 and has a front end portion. Is supported by the front small-diameter portion 5 of the storage tube 3 and is rotatably inserted in the storage tube 3. The cross-section is wide, and the tip is also wide, and this wide tip is located at the front end of the front small-diameter portion 5 of the storage tube 3, and thus at the front end of the powder supply hole. Although the spiral body 6 in the illustrated example is formed by twisting a thin metal plate a plurality of times, other than that, one in which one or more blades are spirally attached to the mandrel peripheral surface is used. it can. Reference numeral 9 denotes a restraining member interposed between the rear end portion of the storage tube 3 and the operation knob 8, and the restraining member 9 restrains scattering of the stored powder from the rear end opening of the storage tube 3. Therefore, an elastic body such as sponge or synthetic rubber that does not hinder the rotation of the operation knob 8 can be adopted.

The operation of supplying the powder stored in the storage tube 3 to the pen tip 2 in the above-described embodiment will be described below.

First, the pen tip 2 is tilted downward, and the operation knob 8 is rotated with respect to the barrel 1 with a fingertip. As the operation knob 8 rotates, the spiral body 6 fixed to the operation knob 8 also rotates integrally. At this time, the storage tube 3 also receives the rotational force of the operation knob 8 via the restraining member 9, but the storage tube 3 has the front small diameter portion 5 in the barrel 1.
Since it is fitted and fixed in the front hole 4 of the above, it does not rotate integrally with the operation knob 8. On the other hand, since the powder contained in the storage tube 3 has moved to the vicinity of the front small diameter portion 5 of the storage tube 3 by its own weight in advance, the rotation of the spiral body 6 suppresses the movement due to its own weight by the spiral inclined surface 7. While being guided sequentially forward, it is led out from the front end opening of the storage tube 3 and supplied into the pen tip 2. Here, the amount of powder supplied into the pen tip 2 is commensurate with the amount of rotation of the spiral body 6 by the operation knob 8. Therefore, by rotating the operation knob 8 appropriately, a desired amount of powder is transferred to the pen tip 2. Can be supplied.

Add a note. If the contained powder is like the sand of an hourglass, it will move downward by its own weight without the need to rotate the spiral body 6.
If the pen tip 2 is directed downward, it is supplied to the pen tip 2 more and more. However, in general, it is not such a special thing. It may be preliminarily moist or may become humid over time. Further, the fact that the supply to the pen tip 2 is performed as described above may cause an excessive supply of the powder to the pen tip 2 as an applicator, and it is rather preferable that the powder is not so dry. That is, it can be said that the powder of the powder applicator has a property that it is non-smooth to some extent. The problem is that when such a powder passes through a passage of a certain size, if the sand in the hourglass is damp, it will not fall smoothly and will stop at the central basin, It means that the supply is cut off. Moreover, the amount of powder supplied before shutting off is also covered. In order to overcome this, it is required that the supply cutoff can be released as desired. For that purpose, the cross-sectional shape of the passage in the part where the supply cutoff occurs is dynamically changed or vibration is applied,
It suffices to release the microscopic engagement between the powders that prevent the powder from falling by its own weight. As a result, excessive supply and supply interruption can be eliminated. At this time, it is of course possible to apply a forward force to the powder at the same time. The powder may be boosted. But it's not absolutely necessary. Rather, it may be added as necessary in consideration of the relationship between the powder type and the overall size of the applicator, such as whether or not the supply inhibition due to compaction of the powder occurs.

Furthermore, in the present invention, the spiral body is used instead of the end-like rod-like object because the cross-sectional shape of the powder passage is continuously changed before and after it has passed the supply cutoff portion once. This is because it is preferable because the powder can be further suppressed from advancing by its own weight after that, and as such a spiral body, a spiral cross-section having a wide continuous cross-section and a wide tip is used. The wide tip is located at the front end of the powder supply hole so that the supply cutoff part can cut off the supply cutoff part where it occurs relatively in front of the powder supply hole. .

However, it is not always necessary to rotate the spiral body 6 as in the above embodiment. The release of the supply cutoff by releasing the microscopic engagement between the powders described above
This is because it can be caused even by microscopic movement of powder due to frictional force on a part of the wall surface of the passage or by a small change in interaction of the forces. Therefore, the same supply operation can be performed by rotating the storage tube with respect to the spiral body, and an embodiment will be described below. Detailed description of parts having the same configuration as the previous embodiment will be omitted.

In FIGS. 4 to 6, the pen tip 22 is attached to the front end of the barrel 21, and the operation knob 28 is attached to the rear end.
Is rotatably fitted. The storage tube 23, in which the powder is stored, has a rear end portion fitted and fixed to the operation knob 28, and the front small diameter portion 25 is interposed between the restraining member 2 and the inner surface of the shaft cylinder 21.
It is supported by 9 and is rotatably arranged in the barrel 21. The restraining member 29 restrains the powder contained from the tip end opening of the storage tube 23 and may be made of an elastic material such as sponge or synthetic rubber that does not hinder the rotation of the storage tube 23. Reference numeral 26 denotes a spiral body having a continuous inclined surface 27 in a spiral shape, and the front end portion of the spiral body 26 is press-fitted and fixed in the front hole 24 of the barrel 1. The front hole 24 serves as a powder supply hole in this example, and the tip of the spiral body 26 is located at the front end of the front hole 26.

The operation of supplying the powder stored in the storage tube 13 to the pen tip 12 in the above-described embodiment will be described below.

As in the previous embodiment, first, the pen tip 22 is tilted downward, and the operation knob 28 is rotated with respect to the barrel 21 with the fingertip. Storage tube 2 fixed to the operation knob 28 with the rotation of the operation knob 28
3 also rotates together. On the other hand, since the powder stored in the storage tube 23 has moved to the vicinity of the front small-diameter portion 25 of the storage tube 23 due to its own weight, the powder is rotated following the rotation of the storage tube 23. The spiral inclined surface 27 of the spiral body 26 at the fixed position is guided forward sequentially while being guided from the front end opening of the storage tube 6 while being restrained from moving due to its own weight, and is supplied into the pen tip 5 through the front hole 24. Here, since the amount of powder supplied into the pen tip 22 is commensurate with the amount of rotation of the storage tube 23 by the operation knob 28, by appropriately rotating the operation knob 28, a desired amount of powder can be obtained as in the previous embodiment. The powder can be supplied to the nib 22.

In each of the embodiments described above, the spiral inclined surfaces 7 and 27 are formed as the spiral bodies 6 and 26 so as to extend over the entire storage tubes 3 and 23. Two
7 is at least the front small-diameter portion 5 and 25 of the storage tubes 3 and 23.
If it is formed corresponding to the above, it can be used, and the front small diameter portions 5 and 25 of the storage tubes 3 and 23 may be made as short as possible. Further, as rotating means for relatively rotating the storage tubes 3 and 23 and the spirals 6 and 26, the operation knobs 8 and 28 fixed to either one of them are rotatable to the rear ends of the barrels 1 and 21. Although the operation knobs 8 and 28 may be exposed on the side surfaces of the barrels 1 and 21, either one of them may be rotated by a pressing operation or the like. It may be used in place of the operation knobs 8 and 28 for which the rotation mechanism to be obtained is shortened.

(Effects of the Invention) As described above, the powder feeder according to the present invention is provided with the barrel having the pen tip attached to the front end thereof, and the powder disposed in the barrel and containing the powder to be fed to the pen tip. The storage tube and the cross section are wide and the tip is also wide, and have a continuous inclined surface in a spiral shape, and are inserted into the storage tube, and the wide tip is provided at the front end portion of the powder supply hole to the pen tip. The spirally inclined surface of the spiral body sequentially guides the powder contained in the storage tube forward and supplies it to the pen tip by relatively rotating the storage tube and the spiral body. Since the powder is obtained, a desired amount of powder can be reliably supplied to the pen tip.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. FIG. 4 is a longitudinal sectional view showing another embodiment, FIG. 5 is a sectional view taken along the line CC of FIG. 4, and FIG. 6 is a sectional view taken along the line DD of FIG. 1,21 …… Shaft cylinder, 2,22 …… Pen tip, 3,23 ……
Storage tube, 6, 26 ... Helical body, 7, 27 ... Inclined surface.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B43K 8/00 8906-2C B65D 83/00

Claims (1)

[Claims] 1. A barrel (1, 21) having a pen tip (2, 22) attached to its front end, and a barrel (1, 21) arranged inside the barrel (1, 21) and supplied to the pen tip (2, 22). Inside the storage pipe (3, 23), which has a wide cross-section and a wide tip and has a continuous inclined surface (7, 27) in a spiral shape. A spiral body (6, 26) which is inserted into the front end portion of the powder supply hole to the pen tip (2, 22) and is inserted into the storage tube (3, 2).
By rotating the 3) and the spiral body (6, 26) relatively, the powder contained in the storage tube (3, 23) is spirally inclined (7, 27) in the spiral body (6, 26). A powder applicator which can be sequentially guided forward to be supplied to the pen nibs (2, 22).