JPS63100975A - Powder supply device - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a pen which is attached to the front end of the barrel, and powder for cosmetics, writing, etc. of an appropriate particle size is stored in the barrel. This invention relates to a powder supply tool that can supply an appropriate amount of powder in advance.

(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 can be broadly classified into liquid applicators. Direct piston or air '4 y=
There are two types: the pressurized type, in which the liquid is forcibly supplied to the nib by applying high pressure, and the natural discharge type, in which the liquid is drawn out to the nib using capillary action through a so-called bellows or relay core. . The former pressurized type is effective when the viscosity of the liquid is high, and the latter natural derivation type is effective when the viscosity of the liquid is low, but the previously known pressurized type,
In the natural derivation formula.

It is difficult to supply an appropriate amount of powder to a pen tip, no matter what the particle size, and even if it were possible to supply it, it would only be possible if the powder used had physical properties close to those of a liquid. .

Therefore, in view of the above-mentioned circumstances, the applicant of the present application first filed a patent application filed in 1986.
As No. 256379, a powder supplying tool having a novel structure was provided in which powder stored in a storage tube can be sequentially guided forward by a spiral inclined surface of a spiral body and supplied to a pen tip. This powder supply tool makes it possible to supply a variety of powders to the pen tip, but when using mild powders that tend to clump over time due to changes in the environment, it is necessary to There is also the possibility that the fluid cannot be smoothly supplied to the pen tip. Therefore, consideration must be given to crushing and stirring the agglomerated powder so as not to cause such problems.

(Purpose of the invention) The present invention was made in view of the demand for slanting.

It is an object of the present invention to provide a powder supplying tool which is not only capable of supplying the stored powder to the pen tip, but also capable of crushing and stirring the stored powder at the same time as the supply operation.

(Structure of the Invention) The present invention provides a barrel having a pen tip attached to its front end, and a storage tube disposed within the barrel, with a front end opening of a small diameter portion facing the pen tip.

A spiral body having a spiral inclined surface is arranged in the storage tube, and by rotating the storage tube and the spiral body relative to each other, the powder stored in the storage tube can be transferred to the spiral body with the spiral sloped surface of the spiral body. In the powder supply tool, the spiral body has a continuous spiral inclined surface in a part corresponding to the front small diameter part of the storage tube, and a continuous spiral slope in the part corresponding to the rear large diameter part of the storage tube. The object of the present invention is to provide a powder feeder characterized by having a discontinuous spiral inclined surface in its portions, and to meet the above object.

(Embodiments of the Invention) The present invention will now be described in detail based on two 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 nib 2 is a basket-like nib made of bundles of natural 2 synthetic fibers, but other materials such as porous elastic bodies such as sponge, synthetic rubber with appropriate cuts, etc. can also be used. Reference numeral 3 designates a cylindrical storage tube whose front small diameter portion 5 is fitted and fixed into the front hole 4 of the barrel 1 and whose tip opening 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 frame 8, which will be described in detail later. The front end portion is rotatably held in the front small diameter portion 5 of the storage tube 6 with a slight gap therebetween. That is, the spiral body 7
can be rotated within the storage tube 3 by rotating the operating knob 10 relative to the shaft tube 1.

In the spiral inclined surface 9 formed on the helical body 7, a portion 9a corresponding to the front small diameter portion 5 of the storage tube 3 is continuous, and a portion 9b corresponding to the rear large diameter portion 6 is phase-shifted at appropriate intervals. It is shifted and discontinuous. In the illustrated example, 8 bars 8
A spiral blade 11 is formed integrally or separately on the outer peripheral surface of the blade.

Although the spiral inclined surface 9 is shown on the side surface of the blade 11, the spiral inclined surface 9 is formed by a spiral body 7 as shown in FIG.
(9') formed from the inner surface of a spiral groove 12 formed on the outer peripheral surface of the eight rods 81 of No. 1.

As shown in FIG. 3, it can also be constructed (9'') from the side surface of a spiral body 7'' formed by inserting a plurality of thin plates 13 made of metal or the like. In this case, in order to make the spiral inclined surfaces 91, 9'' discontinuous at the portion corresponding to the rear large diameter portion B, in the example of FIG. 9, in the example shown in FIG. The restraining member 15 is a restraining member interposed in the storage pipe 3, and the restraining member 15 restrains powder from dispersing from the rear end opening of the storage tube 3.
An elastic body such as sponge or synthetic rubber that does not prevent the operating knob from rotating 100 times can be used. However, the restraining member 15
This is not necessarily necessary if the gap between the rear end of the storage tube 3 and the operating knob 10 is kept small enough to prevent powder from scattering.

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

First, tilt the pen tip 2 slightly downward 9 and then rotate the operating knob 10 with your fingertips relative to the barrel 1 (rotated counterclockwise in the figure). As the operating knob 10 rotates, the spiral body 7 fixed to the operating knob 10 also rotates together. At this time, the storage tube 5 also receives the rotational force of the operation knob 10 via the restraining member 15, but since the front small diameter portion 5 of the storage tube 3 is fixed to the front hole 4 of the shaft tube 1, the operation can be performed. It does not rotate together with the knob 10. On the other hand, since the powder stored in the storage tube B has moved to a position near the front small diameter portion 5 of the storage tube 3 due to its own weight, the powder is transferred to the continuous spiral inclined surface 9 due to the rotation of the spiral body 7.
The pen is guided into the front small diameter portion 5 little by little while being restrained from moving due to its own weight, and then sequentially sent forward by the rotationally displacing spiral inclined surface 9 and supplied to the pen tip 2. Here, the amount of powder supplied to the pen tip 2 approximately corresponds to the amount of rotation of the spiral body 7 by the operating knob 8, so by adjusting the rotation of the operating knob 10 as appropriate, the desired amount of powder is supplied to the pen tip 2. can be supplied to Further, when the operation knob 10 is rotated as described above, the discontinuous spiral inclined surface 9 formed at the rear of the spiral body 7 also rotates within the rear large diameter portion 6. That is, with this discontinuous rotation of the spiral inclined surface 9, the stored powder is moved forward to some extent by a feeding action, but it is not led out into the front small diameter section 5, and thus the stored powder is It will be subject to strong stirring action. Therefore, even when using powders that tend to form into lumps over time due to changes in the environment.

Since the agglomerated powder is crushed and stirred by the discontinuous spiral inclined surface 9, a smooth powder supply operation can be expected.

Note that if the discontinuous spiral inclined surface 9 described above is formed over the entire rear large diameter portion 6 as shown in the figure, a more reliable pulverizing and agitating action can be achieved, but its longitudinal length may vary depending on the powder used. Depending on the type of body, it may be necessary to make it as short as possible.

Further, its outer shape does not need to be smaller than the inner shape of the rear large diameter portion B as shown in the illustrated example, and may be made to substantially match the inner shape of the rear large diameter portion B. on the other hand.

The shape of the storage tube 3 is not limited to the two-stage cylindrical shape shown in the illustrated example, but it is also possible to adopt a cylindrical shape with a tapered end. You may also do so. Further, an example has been shown in which the powder can be supplied by rotating the spiral body 7 relative to the storage tube 6, but in contrast to this, the rear end of the storage tube 6 is connected to the operating knob 10. Even if the front end of the spiral body 7 is fixed to the front hole 4 and the storage tube 6 is rotated relative to the spiral body 7, the same effect as described above can be achieved.

(Effects of the Invention) As described above, according to the present invention, by relatively rotating a storage tube that stores powder and a spiral body having a spiral slope, a desired amount of powder can be produced by the spiral slope of the spiral body. Not only can the powder be sequentially pushed forward and supplied to the pen tip, but the stored powder can be crushed and stirred simultaneously with the supply operation.

Smooth powder supply operation can be expected for various powders.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view, and FIGS. 2 and 3 are side views of essential parts showing modified examples of the spiral body. 1... barrel, 2... pen tip, 3...
...Storage pipe. 5...Front small diameter part, 6...Rear large diameter part. 7, 7', 7'... spiral body, 9.
9', 9''...Spiral inclined surface, 9a...
...Continuous spiral slope. 9b...Discontinuous spiral inclined surface.

Claims (1)

[Claims] A barrel having a pen tip attached to a front end thereof, a storage tube disposed within the barrel and having a front end opening of a small diameter portion facing the pen tip, and a spiral inclined surface disposed within the storage tube. By rotating the storage tube and the spiral body relative to each other, the powder stored in the storage tube can be sequentially sent forward by the spiral inclined surface of the spiral body and supplied to the pen tip. In the powder supply tool, the spiral body has a continuous spiral sloped surface in a portion corresponding to the front small diameter portion of the storage tube and a discontinuous spiral sloped surface in a portion corresponding to the rear large diameter portion. Powder supply tool.