JPH0624678B2 - Powder applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a nib attached to the front end of a barrel for powdering powder for cosmetics, writing, etc., having an appropriate particle size, contained in the barrel. The present invention relates to a powder applicator capable of supplying an appropriate amount.

(Prior Art and Its Problems) Liquid applicators that can store liquids of various viscosities in a barrel and supply the liquid to a pen tip attached to the front end of the barrel are roughly classified as follows. A pressurization type in which the liquid is directly pressurized by a piston or air to forcibly supply it to the pen tip, and a natural method in which the liquid is led out to the pen tip using a capillary action via a so-called bellows or relay core. The former pressurization formula is effective when the viscosity of the liquid is high, and the latter natural derivation formula 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 is conventionally known, and even if it is possible to supply it, It was limited to the case where the powder used had physical properties similar to those of a liquid.

In view of this, the present invention is to provide a powder applicator that can reliably supply powder for cosmetics, writing, etc., having an appropriate particle size, to the pen tip, and that the supply operation is simple. .

(Structure of the Invention) The present invention has a storage tube for storing powder, which is rotatably arranged with a front end opening of the storage tube facing the pen tip, in a barrel having a pen tip attached to the front end. A spiral body having a continuous inclined surface in a spiral shape is inserted into the storage tube and fixedly arranged in the shaft cylinder. On the other hand, an operation knob is provided on the side surface of the shaft cylinder so as to be pushed in and fixed to the storage tube. The gist of the present invention is a powder applicator in which a gear having a plurality of teeth can be rotated.

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

1 to 3, a holder 3 having a through hole 2 is fitted in a front end portion of a shaft cylinder 1, and a stop pipe 4 for fixing the holder 3 to the shaft cylinder 1 is fitted therein. . Reference numeral 5 denotes a pen tip capable of containing and applying powder described below, the base portion of which is fixed by being fixed in the gap between the stop tube 4 and the holder 3.
In the illustrated example, the pen tip 5 is 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 6 denotes a cylindrical storage tube whose front and rear ends are rotatably supported by a front hole 7 and a rear circular groove 8 in the shaft tube 1. The storage tube 6 has a suitable particle size for makeup, Contains powder for writing. Further, a gear 11 having a plurality of teeth 10 inclined in one direction is fitted on the outer peripheral surface of the front small diameter portion 9 of the housing pipe 6. Reference numeral 12 denotes a spiral shape having a continuous inclined surface 13 in a spiral shape. The spiral body 12 has a front end portion press-fitted and fixed in a through hole 2 of a holder 3, and a rear end portion thereof is a rear hole 1 in a barrel 1.
It is inserted into and supported by 4 and inserted through the storage tube 6 and fixedly arranged in the barrel 1. In the illustrated example, the spiral body 12 is formed by twisting a thin metal plate a plurality of times, but one or more spiral blades may be attached to the mandrel peripheral surface. . Further, the spiral body 12 is attached to the barrel 1.
Alternatively, instead of the above, the rear end of the spiral body 12 may be press-fitted and fixed in the rear hole 13 in the barrel 1. In this case, the holder 3 is deleted and the front end of the storage tube 6 is removed. The opening can be located in the nib 5 for insertion. 1
Reference numeral 5 denotes an operation knob that is fitted and arranged in a hole 16 formed in the side surface of the shaft cylinder 1. The operation knob 15 has a rear portion fixed to the shaft cylinder 1 and an elastically swingable front portion which is the shaft cylinder 1. The elastic engagement piece 17 formed on the front side wall and capable of swinging to the left and right is engaged with the tooth 10 of the gear 11. Reference numeral 18 denotes a restraint member that is interposed between the holder 2 and the front end portion of the storage tube 6, and the restraint member 18 is the restraint member 18.
Since it prevents the powder derived from the front end opening from moving rearward in the barrel 1, a sponge or an elastic body of synthetic rubber that does not hinder the rotation of the storage tube 6 can be adopted. Reference numeral 19 is an elastic piece for preventing reverse rotation, which is provided on the inner surface of the shaft cylinder 1 outside the gear 11.

The operation of supplying the powder stored in the storage tube 6 to the pen tip 5 in the embodiment described above will be described below.

First, the pen tip 5 is tilted downward, and the front part of the operation knob 15 exposed from the shaft cylinder 1 is pushed into the shaft cylinder 1 with a fingertip, and can be swung left and right formed on the front side wall of the operation knob 15. The elastic engagement piece 17 presses the gear 17 in the circumferential direction to rotate it. By the rotation of the gear 11, the storage pipe 6 to which the gear 11 is fitted and fixed is also integrally rotated. On the other hand, since the powder contained in the storage tube 6 has already moved to the vicinity of the front small diameter portion 9 of the storage tube 6 due to its own weight, the powder is rotated following the rotation of the storage tube, and the spiral body at the fixed position is rotated. The spiral inclined surface 14 of 12 is guided in order forward while being prevented from moving due to its own weight, and led out from the front end opening of the storage tube 6, and the holder 3
It is supplied into the pen tip 5 through the through hole 2.

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 preferable that the powder is not so smooth. 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 left to the powder. In order to overcome this, it is required that the supply cutoff can be released as desired. For that purpose, if the cross-sectional shape of the passage in the part where the supply is interrupted is dynamically changed or vibration is applied, the microscopic engagement of the powder particles that prevents the weight drop is released. Good. As a result, excessive supply and supply interruption can be eliminated. The release of the supply cutoff can also be caused by the microscopic movement of the powder due to the frictional force on a part of the wall surface of the passage or a small change in the interaction of the forces.
In the present invention, this is at least due to the rotation of the storage tube. In the present invention, the reason why the spiral body is used instead of a simple rod-like object is that 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 possible to further suppress the progress of the powder after its own weight, which is preferable.

When the operation knob 15 is released, the operation knob 15 is prevented from rotating in the reverse direction by the elastic piece 19.
The elastic engaging piece 17 is returned while being deformed outward along the outer shape of No. 1, and is returned to the original state in which the elastic engaging piece 17 is engaged with the next adjacent tooth 10. In this way, by pressing the operation knob 15, the storage tube 6 can be rotated by a predetermined angle, and an appropriate amount of powder corresponding to the rotation can be supplied to the pen tip 5. Therefore, by pressing the operation knob 15 an appropriate number of times A quantity of powder can be supplied to the nib 5.

Reference numeral 20 is a powder pressing device, and the pressing device 20 is a sliding contact member 21 made of sponge, synthetic rubber or the like that is in sliding contact with the inner surface of the storage tube 6, and a pressing plate fixed to the front end of the sliding contact member 22. A slit 23 formed on the pressing plate 22 is loosely fitted to the spiral body 12 so that the slit 23 rotates with the rotation of the storage tube 6 and can move forward along the inclined surface 14 of the spiral body 12. Has become. That is, the pressing device 2
If 0 is used, the powder stored in the storage tube 6 can be pressed and moved to the vicinity of the front small-diameter portion 9 of the storage tube 6 regardless of the orientation of the axial cylinder 1. The supply to the pen tip 5 can be made more reliable. Since the pressing device 20 uses the sliding contact member 21 that is in sliding contact with the inner surface of the shaft cylinder 6, when resistance is generated in the forward movement, it may slip with the inner surface of the shaft cylinder 6 and stay at that position. Therefore, the powder stored in the storage tube 6 is not forcibly supplied to the pen tip 5 by the pressing device 20.

In the embodiment described above, the spiral body 12 is formed so that the spiral inclined surface 14 extends over the entire storage tube 6, but the spiral inclined surface 14 is at least the storage tube 6.
If it is formed corresponding to the front small-diameter portion 9 of the above, it is useful, and the front small-diameter portion 9 of the storage tube 6 may be made as short as possible.

(Effect of the invention) As described above, according to the present invention, by pushing the operation knob that can be exposed on the side surface of the barrel into the barrel, the storage tube for storing the powder is rotated by a predetermined angle with respect to the spiral body. Since an appropriate amount of powder corresponding to the rotation can be sequentially guided forward by the spiral inclined surface of the spiral body and supplied to the pen tip, a desired amount of powder can be obtained by an extremely simple supply operation simply by pressing the operation knob. It 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 vertical 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. is there. 1 ... Shaft cylinder, 5 ... Nib, 6 ... Storage tube, 10 ... Tooth, 11 ... Gear, 12 ... Helical body, 13 ... Inclined surface, 15 ... Operation knob.

─────────────────────────────────────────────────── ─── 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 storage tube (6) for storing powder in a barrel (1) having a pen tip (5) attached to its front end, and a front end opening of the storage tube (6) having a pen tip (5). ) And is rotatably disposed so as to face each other, and a continuous inclined surface (13) is provided in the storage pipe (6).
(1) is inserted through the spiral body (12) having a spiral shape.
On the other hand, a gear (11) provided with a plurality of teeth (10) fixed to the storage tube (6) is fixedly arranged inside, while an operating knob (15) is provided on the side surface of the shaft cylinder (1) so as to be freely pushed therein. ) A powder applicator which can be rotated.