JPH0729083B2 - Powder feeder - 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, housed in the barrel. The present invention relates to a powder supply tool capable of supplying an appropriate amount.

(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. The pressurizing type that pressurizes directly with a piston or air and forcibly supplies it to the pen tip,
It can be divided into a natural derivation method in which a liquid is led out to a pen tip by utilizing a capillary action through a so-called bellows or a relay core.
It can be said that the former pressurizing 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, and even if it could be supplied, it was limited to the case where the powder used had physical properties similar to a liquid. .

Therefore, in view of the above-mentioned circumstances, the applicant of the present application has previously filed Japanese Patent Application No. 60-
As No. 256379, there is provided a powder supply tool having a novel structure capable of sequentially guiding the powder contained in the storage tube forward by the spiral inclined surface of the spiral body and supplying the powder to the pen tip. The powder supply tool allows various powders to be supplied to the pen stack, but when using a type of powder that easily agglomerates over time due to environmental changes, etc. It is possible that the pen tip cannot be supplied. Therefore, it is necessary to consider that the agglomerated powder can be crushed and stirred so that such a problem does not occur.

(Object of the invention) The present invention has been made in view of the above-mentioned demands, and it is possible to supply the crushed powder to the pen tip, and also to crush and stir the stored powder at the same time as the supply operation. The present invention is to provide a powder supply tool as described above.

(Structure of the Invention) The present invention provides a barrel having a pen tip attached to its front end, a barrel having a front small-diameter portion arranged in the barrel, and the pen tip formed at the front end of the front small-diameter portion. And a spiral body having a spiral inclined surface disposed in the storage tube, wherein a front end portion of the spiral body has a front end portion of a front small diameter portion of the storage tube. Rotatably inserted into
By relatively rotating the storage tube and the spiral body,
In a powder supply tool capable of sequentially feeding powder contained in a storage tube forward by a spiral inclined surface of a spiral body and supplying the powder to a pen tip, the spiral body corresponds to a front small diameter portion of the storage tube. A powder supply tool having a continuous spiral inclined surface and a discontinuous spiral inclined surface at a portion corresponding to a rear large diameter portion is provided for the above object.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail based on the embodiments shown in the accompanying drawings.

In FIG. 1, a pen tip 2 capable of containing and applying powder, which will be described later, is attached to the front end 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 tubular storage tube in which a front small diameter portion 5 is fitted and fixed in a front hole 4 of the shaft cylinder 1 and the tip opening of the storage tube 3 faces the pen tip 2. Powder for cosmetics, writing, etc., with an appropriate particle size is stored. Reference numeral 7 denotes a spiral body having a spiral inclined surface 9 on the outer periphery of the core rod 8 which will be described later in detail. The spiral body 7 has an operation knob whose rear end is rotatably fitted to the rear end of the barrel 1.
It is fixed to 10 by press-fitting or the like, and the front end portion is rotatably held in the front small diameter portion 5 of the storage tube 3 with a slight gap. That is, the spiral body 7 can be rotated in the storage tube 3 by rotating the operation knob 10 with respect to the barrel 1. The spiral inclined surface 9 formed on the spiral body 7 is
The corresponding portion 9a of the front small diameter portion 5 of the storage tube 3 is continuous, and the portion 9b corresponding to the rear large diameter portion 6 is discontinuous with the phases shifted at appropriate intervals. In the illustrated example, the core rod 8
The spiral blade 11 is formed integrally or separately on the outer peripheral surface of
The side surface of the blade 11 constitutes the spiral inclined surface 9, but the spiral inclined surface 9 is the spiral body 7'as shown in FIG.
The inner surface of the spiral groove 12 formed on the outer peripheral surface of the core rod 8'of (9 ') or a thin plate 13 of metal or the like as shown in FIG.
It is also possible to form (9 ″) on the side surface of the spiral body 7 ″ formed by twisting a plurality of times. In this case, in order to make the spiral inclined surfaces 9 ', 9 "discontinuous at the portion corresponding to the rear large-diameter portion 6, in the example of Fig. 2, the concave groove 12 is appropriately provided at the rear portion of the spiral body 7'. 3 may be formed at intervals, or in the example of Fig. 3, cuts 14 may be formed at appropriate intervals at the thin plate 13. Reference numeral 15 is between the rear end of the storage tube 3 and the operation knob 10. The restraining member 15 is a member for restraining the scattering of the powder from the rear end opening of the accommodating tube 3, and the sponge and synthetic rubber which do not prevent the operation knob 10 from rotating. An elastic body such as can be used, but the restraining member 15
Is not necessarily required if the gap between the structural member of the storage tube 3 and the operation knob 10 is managed to a minute extent such that powder does not scatter.

The powder supply operation in the above-described embodiment will be described below.

First, the pen tip 2 is tilted slightly downward, and then the operating knob 10 is rotated with the fingertip with respect to the barrel 1 (counterclockwise in the figure). As the operation knob 10 rotates, the spiral body 7 fixed to the operation knob 10 also rotates together. At this time, the storage tube 3 also receives the rotational force of the operation knob 10 via the restraining member 15, but since the storage tube 3 has the front small diameter portion 5 fixed to the front hole 4 of the barrel 1, it is operated. It does not rotate with knob 10. On the other hand, since the powder contained in the storage tube 3 has moved to a position in the vicinity of the front small-diameter portion 5 of the storage tube 3 by its own weight, the powder is self-weighted by the continuous spiral inclined surface 9 by the rotation of the spiral body 7. While being prevented from moving, the small amount is led out into the front small-diameter portion 5 little by little, and is sequentially fed forward by the spirally inclined surface 9 which is rotationally displaced and supplied to the pen tip 2. Here, the amount of powder supplied to the pen tip 2 is determined by the operation knob 8 in the spiral body 7.
The amount of powder can be supplied to the pen tip 2 by adjusting the rotation of the operation knob 10 as appropriate. Further, when the operation knob 10 is rotated as described above, the discontinuous spiral inclined surface 9 formed on the rear side of the spiral body 7 is also rotated in the rear large diameter portion 6. That is, in the discontinuous rotation of the spiral inclined surface 9, although the stored powder moves to the front by some feeding action, it does not reach the front small diameter portion 5, and thus the stored powder is agitated. It will be strongly affected. Therefore, even when using a type of powder that tends to agglomerate over time due to environmental changes,
The agglomerated powder is crushed and stirred by the discontinuous spiral inclined surface 9, so that a smooth powder feeding operation can be expected.

The discontinuous spiral inclined surface 9 described above can exhibit a more reliable crushing and stirring action if formed over the entire rear large-diameter portion 6 as shown in the figure, but its longitudinal length is equal to the powder used. Depending on the type of body, it may be necessary to make it as short as possible. Further, the outer shape thereof does not have to be smaller than the inner shape of the rear large diameter portion 6 as shown in the drawing, and may substantially match the inner shape of the rear large diameter portion 6. On the other hand, the shape of the storage tube 3 is not limited to the two-stage cylindrical shape as shown in the illustrated example, and it is needless to say that a tapered cylindrical shape or the like may be adopted, and the storage tube 3 is replaced by the axial cylinder 1. You may do it. Further, the spiral body 7 is accommodated in the storage tube 6
Although the powder supply can be performed by rotating it with respect to the above, on the contrary, the rear end of the storage tube 6 is fixed to the operation knob 10 and the front end of the spiral body 7 is moved forward. Part hole 4
The same operation as described above can be achieved by fixing the housing tube 6 to the spiral tube 7 and rotating the housing tube 6 with respect to the spiral tube 7.

(Effects of the Invention) As described above, according to the present invention, by relatively rotating the storage tube for storing the powder and the spiral body having the spiral inclined surface, a desired amount can be obtained by the spiral inclined surface of the spiral body. In addition to being able to sequentially feed powder backwards and supply it to the pen tip, it is possible to crush and stir the stored powder at the same time as the feeding operation, and smooth powder feeding operation can be expected for various powders.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view, and FIGS. 2 and 3 are side views of essential parts showing modified examples of a spiral body. 1 …… Shaft cylinder, 2 …… Pen tip, 3 …… Storage tube, 5 …… Small front diameter, 6 …… Large diameter rear, 7,7 ′, 7 ″ …… Spiral, 9,9 ′, 9 ″
...... Spiral slanted surface, 9a …… Continuous spiral slanted surface, 9b ……
Discontinuous spiral inclined surface.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65D 83/00

Claims (1)

[Claims] 1. A barrel (1) having a pen tip (2) attached to a front end thereof, a front small diameter portion (5) arranged in the barrel (1), and the pen tip ( A storage body (3) facing the tip opening formed at the front end of the front small diameter portion (5) in (2), and a spiral body (7) having a spiral inclined surface (9) arranged in the storage tube (3). ), Wherein the front end of the spiral body (7) is rotatably fitted into the tip opening of the front small-diameter portion (5) of the storage tube (3), and the storage tube (3) and the spiral body are By rotating the (7) relatively, the powder contained in the storage tube (3) is sequentially sent out forward by the spiral inclined surface (9) of the spiral body (7) and supplied to the pen tip (2). In a powder supply tool that is capable of
The spiral body (7) has a spiral inclined surface (9a) continuous to a portion corresponding to the front small diameter portion (5) of the storage pipe (3) and a discontinuous spiral inclined surface to a portion corresponding to the rear large diameter portion. Inclined surface (9b)
A powder supply tool comprising: