JPS5841093B2 - Stirring device for cylindrical containers filled with paint, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cylindrical container filled with paint having a hollow container body and a cap equipped with a brush, particularly a lacquer stick for repairing lacquer damage on automobiles. The present invention relates to a stirring device which is formed as a tubular hollow body surrounding the brush, has protrusions projecting radially outward, and is configured to be swung in the axial direction within the container.

Stirring devices constructed as twisted pieces of wire, such as helical compression springs, are known (German patent no. 1161).
No. 795).

In principle, this known stirring device must be made of spring steel, and its form has the disadvantage that a strong mixing action cannot be obtained unless the container is shaken many times.

Furthermore, it is a necessary condition that the helical spring piece be configured to allow some degree of tampling movement.

Otherwise, no significant mixing effect can be achieved between the outer periphery and the inner diameter of the container or in the region inside the helical spring piece.

Therefore, unless clogging of the stirring device is reliably prevented, it is necessary to strictly adhere to tolerances regarding the outer diameter and length of the wire member.

Stirring devices such as headstocks are also known in which perforated discs or cross-shaped elements that are axially misaligned with one another surround a tubular shaft part (DE 212 774).
No. 8).

With this configuration, it is possible to obtain a stirring device that captures a wide range of the cross section of the container when shaken in the axial direction.

However, on the other hand, there are disadvantages in that the resistance of the stirring device to axial movement increases and the contact area between the bottom disc and the bottom disc, on which lacquer pigments tend to adhere, becomes relatively large.

Solving these shortcomings is extremely difficult, even impossible.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to construct a stirring device such as the one mentioned above so that even if the container is only slightly shaken in order to move the stirring device, intensive mixing is achieved throughout the container.

The present invention provides a stirring device such as the one described above, in which protrusions are formed in the shape of fan blades, arranged at equal intervals around a tubular hollow body, and tilted in the same direction at an angle formed with respect to the longitudinal axis of the tubular hollow body, and It is characterized in that the outer edge of the projecting piece is located on a virtual cylindrical surface with a diameter slightly smaller than the inner diameter of the container body.

According to such a configuration, first, the stirring device can be easily manufactured from synthetic resin or metal material by injection molding or the like.

In addition, the protrusions act like propellers, and a sufficient mixing effect can be obtained by simply shaking the container a little.

In particular, since the protrusion extends close to the inner circumferential surface of the container, the peripheral area of the liquid in the container can be captured just by moving the stirring device up and down once, and the mixing effect can be achieved without the need for repeated tampling operations of the stirring device. is obtained.

Furthermore, since the projection extends close to the inner peripheral surface of the container, the stirring device is reliably guided by the container, and there is no risk that the stirring device will come into contact with the brush and damage it.

Another advantage is that the surface that comes into contact with the bottom of the container is almost only the end surface of the protruding piece, and therefore the area is extremely small.

That is, there is no risk that the stirring device will become stuck even if it is not used for a long period of time.

Preferably, the axial length of the virtual cylindrical surface that defines the position of the outer edge of the protruding piece is set longer than the length of the tubular hollow body, and the end face of the protruding piece is formed to be inclined at an angle with respect to the quantum axis. , the above-mentioned advantageous properties can be further improved.

That is, with this configuration, the outermost end of the protruding piece contacts only in a point-like manner, so that the contact surface with the bottom of the container is minimized.

Therefore, the stirring device inside the container can be moved smoothly in any case.

In addition, in this embodiment, from the viewpoint of manufacturing technology,
It is also preferred to form the projections as straight blades, but at an angle to the axis of the stirring device.

That is, such a stirring device can be manufactured extremely easily using metal as a material, for example, by injection molding.

In the light of experience, it is not only sufficient but also advantageous to provide four vanes whose end faces are perpendicular to the wall of the tubular hollow body and offset from each other in the circumferential direction. .

In this embodiment, if the length of the stirrer is set to approximately correspond to 1/2 of the length through which the stirrer can move axially within the container, the desired mixing movement can be achieved in the liquid with just one point. Sufficient stirrer rotation is obtained to give

The present invention will be described in detail below according to embodiments shown in the accompanying drawings.

FIG. 1 shows a cylindrical container configured as a lacquer stick for use in repairing lacquer damage on automobiles.

This container basically consists of a hollow container body 1 and a cap 4.

In the following description, the "container" and the "container body" will not be distinguished, and both will be referred to as "container 1."

A stopper 2 is fitted to the upper end of the container 1 so as to seal the inner peripheral surface of the container.

The plug 2 is formed with an outer thread 3, and the threaded cap 4 is screwed onto the outer thread 3.

The cap 4 has a conical portion 5 to which a brush 6 is fixed.

The cap 4 also has an interior chamber 7 closed at the top by an auxiliary cap 8, into which a tool, such as a spatula, necessary for repairing lacquer damage can be inserted.

How to use the lacquer stick is that when you unscrew the cap 4 and remove it from the container 1, the brush 6 will move along with the cap 4 to the container 1.
extracted from.

This allows the tip of the brush 6 to repair damaged parts of the lacquer on the automobile.

The container 1 is equipped with a stirring device 9 for stirring the lacquer in the container 1 prior to the start of repair.

The stirring action of the lacquer is obtained by shaking the container 1 in the axial direction while keeping the cap 4 of the container 1 closed, so that the stirring device 9 is moved in the axial direction within the container 1 by the action of inertia.

As is particularly clear from FIG. 2, the stirring device 9 is formed in the form of a cylindrical tube 10, and on its outer circumferential surface are formed like fan blades spirally in the same direction relative to the longitudinal axis 11. It has an extending protrusion 12.

In the illustrated embodiment, four protrusions 12 are provided, the upper end surfaces 13 of which are arranged around the tube 10 at an interval of 90° from each other, and whose longitudinal axis 11 is common to the upper end surface 10a of the tube 10. Located in orthogonal radial planes.

On the other hand, the lower end surfaces 14, which are in the same plane as the lower end surfaces of the tubes 10, are offset by about 90 degrees in the circumferential direction from the associated upper end surfaces. It is shifted by 90 degrees.

The axial length l of the tube 10 and the projection 12 is selected to correspond to approximately 1/3 to 1/2 of the axial length over which the stirring device 9 can move in the axial direction within the container 1.

With this configuration, in most cases, the lacquer in the container 1 can be reliably mixed with only one surrounding plate by the rotation of the stirring device.

It is of course also possible to arrange the tabs 12 slightly inclined relative to the longitudinal axis 11, such that the end faces 13 and 14 of each tab are offset from each other in the circumferential direction by, for example, about 45 DEG or 60 DEG.

The point is that by shaking the container 1, the stirring device 9 moves in the axial direction within the container 1, and the protrusions act on the lacquer like the blades of a fan.

The outer edge 15 of the projecting piece 12 is located on a virtual cylindrical surface having a diameter slightly smaller than the inner diameter of the container 1.

Therefore, the stirring device 9 is reliably guided along the inner peripheral surface of the container by the outer edge of the protruding piece, and the stirring device 9 can be smoothly guided into the container 1 without damaging the brush 6.
Can move inside.

Furthermore, since the protruding piece 12 extends close to the inner circumferential surface of the container, the lacquer between the outer circumferential surface of the tube 10 and the inner circumferential surface of the container is removed by the protruding piece 12.
2, and the tip of the brush 6 moves relative to the tube 10 in the internal space, so that the internal space of the tube 10 is also subjected to a mixing effect. is captured by the swirling movement of the stirring device 9, and the paint in the container can be thoroughly mixed.

The stirring device 9 can be manufactured as an integral part very simply by injection molding.

There are no difficulties in molding.

As the material, for example, zinc casting or synthetic resin can be used.

The stirring device 9 shown in FIG. 3 has protrusions 12 formed in the shape of fan blades attached to a tube 10, as in the case of FIGS. 1 and 2.
around the longitudinal axis 11 thereof in a spiral arrangement.

However, the end surface 13' of each protrusion 12 is not located in the same plane as the end surface of the tube 10 as in the embodiment shown in FIGS. 1 and 2, but as is particularly clear from FIG. , at an angle α with respect to the longitudinal axis 11.

That is, it extends obliquely inward from the end of a virtual cylindrical surface of axial length M defined by the outer edge 15 of each vane-like projection 12 toward the end of length l of tube 10 .

Therefore, at the outermost ends of both end faces of the agitation device 9 that are separated from each other by a distance M, for example, in the two illustrated embodiments, only four dotted abutment cylinders 20 are formed in each, Stirring device 9
When inserted into a container as shown in FIGS. 1 and 2, these abutting cylinders 20 abut against the bottom of the lacquer container.

Therefore, the contact surface between the container and the stirring device 9 is reduced to a minimum.

In this case, the stirring device will not stick to the bottom of the container due to the pigment in the lacquer, even if left for a considerable period of time.

In the embodiment shown in FIG. 4, the blade-shaped projections 12 of the fan only form an angle with respect to the longitudinal axis and have a straight, untwisted shape.

In light of experience, even if there is no twist in the protrusion, a sufficient i mixing effect can be obtained just by the force component acting when shaking the container.

If the stirring device shown in FIG. 4 is manufactured in one piece, for example from a metal casting, the molds required can be constructed very simply.

[Brief explanation of drawings]

Figure 1 shows lacquer for repairing lacquer damage on automobiles.
A vertical cross-sectional view showing the stirring device of the present invention incorporated into a stick, FIG. 2 is a perspective view of the stirring device incorporated into the lacquer stick shown in FIG. 1, and FIG. 3 shows the end face of each protrusion centered FIG. 4 is a perspective view showing another embodiment of the stirring device configured to move obliquely toward the axis. 2 is a side view of a stirring device similar to FIG. 1 constructed; FIG. 1... Cylindrical container (or container body), 2...
...Bung, 4...Cap, 6...
Brush, 9... Stirring device, 10... Tube (
or tubular hollow body), 11... longitudinal axis, 12
...Protruding piece, 13, 13', 14... End face, 15... Outer edge, 20... Contact point.

Claims (1)

[Scope of Claims] 1. Used in a cylindrical container filled with paint or the like having a hollow container body 1 and a cap 4 equipped with a brush 6, formed as a tubular hollow body 10 surrounding the brush 6, In the stirring device, which has a protruding piece 12 that protrudes outward in the radial direction and is swung in the axial direction within the container 1, the protruding piece 12 is formed in the shape of a fan blade, and the tubular hollow body 10
The projecting pieces 12 are arranged at equal intervals around the tubular hollow body 10 and are inclined in the same direction at an angle formed with respect to the longitudinal axis of the tubular hollow body 10 .
A stirring device characterized in that the outer edge 15 of the stirring device is located on a virtual cylindrical surface having a diameter slightly smaller than the inner diameter of the container body 1. 2. The stirring device according to claim 1, wherein the projecting piece 12 is twisted spirally with respect to the longitudinal axis of the tubular hollow body. 3. It is characterized by the provision of four projecting pieces 12 whose end surfaces 13 and 14 are offset from each other in the circumferential direction but are perpendicular to the tangent to the outer diameter of the tubular hollow body 10. A stirring device according to claim 1. 4. The length l of the projecting piece 12 corresponds to approximately 1/3 to 1/2 of the length l over which the stirring device 9 can move in the axial direction within the container 1. The stirring device according to any one of the ranges 1 to 3. 5. The stirring device according to any one of claims 1 to 4, wherein both ends 13 or 14 are located in the same plane as the end surface 10a of the tubular hollow body 10, respectively. 6. The stirring device according to any one of claims 1 to 5, characterized in that the stirring device is integrally formed into an injection molded member together with the projecting piece 12 of the tubular hollow body 10. 7. A patent claim characterized in that the axial length M of the virtual cylindrical surface is greater than the length l of the tubular hollow body 10, and the end surface 13' of the protruding piece 12 is inclined at an angle α with respect to the longitudinal axis 11. The stirring device according to scope 1. 8. Stirring device according to claim 7, characterized in that the projections 12 are shaped as linear blades, but are configured to be inclined at an angle with respect to the longitudinal axis 11 of the stirring device 9. .