DUSTER FOR VEHICLE

Abstract

There is provided a duster which is suitable for cleaning. To prevent a brush wound around a rod from slipping in the direction of the length and the direction of the axial rotation of the rod, the duster comprises: a number of sharp protrusions formed on a portion of the rod around which the brush is wound, so that a stitched portion of the brush is stuck to the sharp protrusions to semi-permanently prevent the slip of the brush, thereby maintaining the product to be like a first assembled state thereof, preventing the function of the duster from being deteriorated, and preventing the surface of an object to be cleaned from being scratched by the rod which is partially exposed. In addition, since the slip of the brush is prevented by using no adhesive agent, the product is easily assembled and the cost is greatly reduced accordingly.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:

FIG. 1 is a perspective view of a conventional duster;

FIG. 2 is a perspective view of a rod of the conventional duster;

FIG. 3 is a view illustrating a process of assembling the conventional duster;

FIG. 4A is a perspective view of a rod of a duster according to a first embodiment of the present invention;

FIG. 4B is a perspective view of a modified example of the rod of FIG. 4A;

FIG. 5A is a perspective view of a modified example of the rod of FIG. 4A;

FIG. 5B is a sectional view taken along Line A-A of FIG. 5A;

FIG. 6 is a perspective view of the rod of FIG. 4A being separated;

FIG. 7 is a view illustrating a process of assembling a duster according to the present invention;

FIG. 8 is a perspective view of a rod of a duster according to a second embodiment of the present invention;

FIG. 9 is a perspective view of the rod of FIG. 8 being connected;

FIG. 10 is a perspective view of a rod of a duster according to a third embodiment of the present invention; and

FIG. 11 is a perspective view of the rod of FIG. 10 being combined.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS OF THE PRESENT INVENTION

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

It will be understood that terms used in the present application and claims shall not be interpreted as the meaning defined in commonly used dictionaries. It will be further understood that the terms should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the technical idea of the invention, based on the principle that an inventor may properly define the meaning of the terms to best explain the invention.

This invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided as teaching examples of the invention. Therefore, it will be understood that the scope of the invention is intended to include various modifications and alternative arrangements within the capabilities of persons skilled in the art using presently known or future technologies and equivalents.

Exemplary Embodiments

FIG. 4A is a perspective view of a rod of a duster according to a first embodiment of the present invention.

Reference numeral 20 indicates the entire rod. A handle part 22 is formed at one end of the rod 20, and a brush securing part 24 is formed at the other end of the rod 20. A brush cover 26 is formed at the boundary between the handle part 22 and the brush securing part 24. The brush cover 26 covers a side of a brush 120. A number of conical sharp protrusions 28 are formed on the outer surface of the brush securing part 24. The sharp protrusions 28 protrude from the brush securing part 24, to be formed in one body with the brush securing part 24.

Preferably, the sharp protrusions 28 may be formed throughout the outer circumferential surface of the brush securing part 24 and may protrude from the outer surface of the brush securing part 24, at a suitable protrusion height, so that a stitching line 120a of the brush 120 is stuck to the sharp protrusions 28.

Further, the sharp protrusions 28 may be conical in shape so as to be stuck by the stitching line 120a. However, the sharp protrusions are not limited to the conical shape and they may have any other shape suitable for being stuck by the stitching line 120a. For example, the exterior shape of the protrusion may be cylindrical if needed.

That is, as illustrated in FIG. 4B, the cylindrical protrusions 28 may be formed on the brush securing part 24. The stitching line 120a of the brush 120 made of filaments is well stuck to the cylindrical protrusions 28. Compared to the conical sharp protrusions 28, the cylindrical protrusions 28 more surely prevent a slip of the brush 120 because the stitching line 120a is stuck to the cylindrical protrusions 28 at a right angle.

The aforementioned cylindrical projections may be round or polygonal.

FIGS. 5A and 5 b illustrate modified examples of the rod 20. Two level parts 24a are formed on the circumference of the brush securing part 24, lengthwise, as shown. The level parts 24a are parallel to each other. When the stitching line 120a of the brush 120 is secured by being wound around the brush securing part 24, the stitching line 120a contacts with and passes through the level portions 24a, so that the stitching line 120a forms to be level as wide as the width of one level part 24a and forms to be round, and it again forms to be level and round, to be wound around the brush securing part 24. When the stitching line 120a is wound in the aforementioned manner, the level parts 24a supports a pulling force of the stitching line 120a, thereby more tightly securing the brush 120 around the brush securing part 24 to the rod 20.

FIG. 6 illustrates a separation of the rod 20 of FIG. 4A. A fixing rise 30 is formed at one end of the brush securing part 24. Corresponding to the fixing rise 30, a fixing hole 32 is formed at one end of the handle part 22. When contacting the handle part 22 with the brush securing part 24 and strongly pushing the handle part 22, the fixing hole 32 is elastically deformed to be expanded so that the fixing rise 30 is press-fitted into the fixing hole 32. Since the brush securing part 24 and the handle part 22 are separated from each other in the rod 20 as described above, upon packing, the volume of the product is reduced as much as the handle part 22 which is separated. Upon use, a user combines the brush securing part and the handle part of the rod 20.

FIG. 7 illustrates a process of assembling a duster 10 of the present invention.

A brush 120 is prepared as shown. The brush 120 is similar to that of the conventional duster which has been described with reference to FIG. 3. However, in the present invention, the brush 120 comprises a stitching line 120a. The stitching line 120a is formed by stitching the middle of a plurality of filaments. The brush 120 is secured, by being wound around a brush securing part 24 of a rod 20. Then, the brush 120 is wound while the stitching line 120a is stuck to sharp protrusions 28, so that the brush 120 does not slip in the direction of the length (L) and the direction of the axial rotation (R) of the rod 20.

FIGS. 8 and 9 illustrate a rod 20a according to a second embodiment of the present invention.

When a rod 20a is mainly made of wood or metal, it is difficult to form protrusions in one body with a brush securing part. Considering this case, the second embodiment of the present invention provides the rod 20a.

The rod 20a is generally made of wood or metal and includes a handle part 22 and a brush securing part, both being formed in one body.

Reference numeral 40 indicates a wraparound sheet 40. A number of sharp protrusions 42 are formed on the surface of the wraparound sheet 40. The wraparound sheet 40 is adhesively wound around the entire outer surface of the brush securing part of the rod 20a, by using an ordinary adhesive agent.

Preferably, the wraparound sheet 40 may be made of a plastics material which is suitable to be adhesively wound around the outer surface of the rod 20a. The protrusions 42 may be conical or cylindrical.

The rod 20a is assembled by the process of FIG. 7, as described above, to complete the duster 10.

FIGS. 10 and 11 illustrate a rod 20b according to a third embodiment of the present invention.

When a rod is mainly made of wood or metal, it is difficult to form protrusions in one body with the rod. Considering this case, the third embodiment of the present invention provides the rod 20b.

The rod 20b is generally made of wood or metal and includes a handle part 22 and a brush securing part 24, both being formed in one body.

Reference numeral 50 indicates a tube-type brush securing case. A number of sharp protrusions 52 are protruded from and formed on the entire outer circumference surface of the tube-type brush securing case 50. The tube-type brush securing case 50 is adhesively fitted into the outer surface of the brush securing part 24.

When assembling the brush securing case 50 and the brush securing part 24, the brush securing case 50 may be adhesively fixed to the brush securing part 24, by using an ordinary adhesive agent, the brush securing case 50 may be fixedly press-fitted into the brush securing part 24, or the brush securing case 50 may be fixed to the brush securing part 24, by using other general assembling methods, that is, by forming a protruding rise (not shown) on the brush securing part 24, and, correspondingly to the rise, forming a hole (not shown) to receive the rise, on the brush securing case 50, so that the rise is inserted into the hole.

The rod 20b is assembled by the process of FIG. 7, as described above, to complete the duster 10.

The above-described protrusions 52 may be conical or cylindrical in shape.

Reference numeral 34 described with reference to FIG. 5A indicates a connection ring which is used, by connecting a string to the ring.

As described above, in the duster according to the present invention, since the protrusions are formed in the brush securing part of the rod at which the brush is secured, the stitching line is stuck to the protrusions. Accordingly, the brush secured at the brush securing part, by being wound around the rod, is prevented from slipping in the direction of the length and the direction of the axial rotation of the rod. Furthermore, since the slip of the brush in the aforementioned directions is prevented by using no adhesive agent, the work efficiency, which would be deteriorated due to the use of an adhesive agent, is significantly improved, and the cost is greatly reduced by no use of the adhesive agent. Furthermore, since the wraparound sheet including protrusions or the tube-type brush securing case as well as plastics are selectively usable as a material of the rod, a duster can be manufactured, by using the rod made of wood or metal.

The scope of the claims, therefore, should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.

Claims

1. A duster comprising: a rod including a handle part and a brush securing part; anda brush being secured to the brush securing part of the rod,whereina number of protrusions are protruded from the outer surface of the brush securing part of the rod, to be formed in one body with the brush securing part; anda stitching fine of the brush is stuck to the protrusions, to be wound around the brush securing part,so that the brush is prevented from slipping in the direction of the length and in the direction of the axial rotation of the rod.

2. The duster of claim 1, wherein the protrusion is conical in shape.

3. The duster of claim 1, wherein the protrusion is cylindrical in shape.

4. The duster of claim 1, wherein the rod comprises: a fixing rise formed at one end of the brush securing part; anda fixing hole formed at one end of the handle part, corresponding to the fixing rise, so that the handle part and the brush securing part are separable from each other and connectable to each other.

5. The duster of claim 1, wherein the rod is made of plastics.

6. A duster comprising: a rod including a handle part and a brush securing part; anda brush being secured to the brush securing part of the rod,whereina wraparound sheet is attached to the outer surface of the brush securing part of the rod;a number of protrusions are protruded from the surface of the wraparound sheet;a stitching line of the brush is stuck to the protrusions, to be wound around the brush securing part,so that the brush is prevented from slipping in the direction of the length and in the direction of the axial rotation of the rod.

7. The duster of claim 6, wherein the protrusion is conical in shape.

8. The duster of claim 6, wherein the protrusion is cylindrical in shape.

9. The duster of claim 6, wherein the rod is made of wood or metal.

10. A duster comprising: a rod including a handle part and a brush securing part; anda brush being secured to the brush securing part of the rod,whereina tube-type brush securing case is attached to cover the outer surface of the brush securing part of the rod;a number of protrusions are protruded from the surface of the brush securing case; anda stitching line of the brush is stuck to the protrusions, to be wound around the brush securing part,so that the brush is prevented from slipping in the direction of the length and in the direction of the axial rotation of the rod.

11. The duster of claim 10, wherein the protrusion is conical in shape.

12. The duster of claim 10, wherein the protrusion is cylindrical in shape.

13. The duster of claim 10, wherein the rod is made of wood or metal.