KR960011000B1 - Aid brush for a vacuum cleaner - Google Patents

Abstract

The auxiliary brush, installed at an end of an extension pipe of the vacuum cleaner, cleans a window frame or a corner. The auxiliary brush comprises: a lower cover(10), longitudinally movable along a lower half body of the extension pipe, having circular bosses(14a,14b) on the upper center, a brush(20) on an end, and linear front and rear parts(18a,18b); a upper cover(40), pivotally connected to the lower cover(10) by rotary axes(42a,42b), having a long shaped hole(45) making a button(p) move along, a brush(55) on an end, and front and rear parts(48a,48b); a coupler(70) selectively coupling the front part(18a) of the lower cover(10) with the front part(48a) of the upper cover(40) or the rear part(18b) of the lower cover(10) with the rear part(48b) of the upper cover(40) on the axes(42a,42b) and the bosses(14a,14b).

Description

Auxiliary Brush for Vacuum Cleaner

1 is a configuration in which the auxiliary brush according to the prior art is mounted and used in the vacuum cleaner.

2 is a block diagram of the auxiliary brush of the present invention mounted on a vacuum cleaner.

3 is an exploded perspective view showing the auxiliary brush of the present invention.

Figure 4 is an external perspective view of the auxiliary brush of the present invention is operated to be mounted to the front end of the extension tube.

5 is a detailed view of the auxiliary brush of the present invention a) cross-sectional view taken along line A-A 'of FIG.

b) is a detailed cross-sectional view of the engaging portion of the upper cover coupled to the extension tube button.

c) is a detailed cross-sectional view of the upper cover and the lower cover is coupled to the extension pipe.

d) is a cross-sectional view of the leading end of the upper cover coupled to the leading end of the extension tube.

Figure 6 a) b) and c) is an explanatory diagram showing a state in which the auxiliary brush of the present invention operates in order.

Figure 7 is a side view showing a state in which the second embodiment of the present invention is mounted and stored in the extension tube.

8 is a side view showing a state in which the second embodiment of the present invention is mounted and used in the extension pipe.

* Explanation of symbols for main parts of the drawings

10: lower cover 14a, 14b: round boss

18a: front part 22: handle for the handle

40: upper cover 42a, 42b: rotation axis

43a, 43b: spinneret 45: long hole

47: engaging piece 48b: rear part

70: coupling means 72a, 72b: elastic flange

84a, 84b: Hanging groove t: Thickness

The present invention relates to an auxiliary brush for cleaning a window frame or a corner in a vacuum cleaner, and in particular, because it does not need to be stored separately in case of injury to the main body, the risk of loss is prevented and it does not need to be fitted to the tip of the extension tube. A greatly improved vacuum cleaner auxiliary brush.

In general, the vacuum cleaner 100 includes a main body 112 having a dust collecting chamber and a driving chamber (not shown) partitioned by an inner partition wall and freely movable by a wheel 111, as shown in FIG. An extension pipe 116 is connected to the multi-stage by attaching a detachable brush head 113 for attaching dust to one end and a handle 115 having a suction force control switch 114 at the other end. And a flexible conduit 118 connected to the extension pipe 116 to form an air passage, and coupled with the connector 117 at the end to be freely attached to and removed from the dust chamber in the main body 112. have.

The vacuum cleaner as described above is provided with an auxiliary brush 120 that can be inserted into the extension pipe 116 to clean the window frame or the corner of the house, the auxiliary brush 120 is a separate auxiliary provided in the main body 112 It is usually stored in the brush holder 125.

Therefore, since the conventional auxiliary brush 120 has to provide a separate auxiliary brush holder 125 on the main body 112 for storage, the main body 112 is unnecessarily enlarged and the cost of production increases. This has the problem that results. If the main body 112 is not provided with the storage box 125, it is very easy to be lost simply by attaching by a holder (not shown) or the like. In addition, since the brush head 113 is taken out from the conventional auxiliary brush 120 as described above, and a fitting connection is made to match the tip of the extension tube 116 to match the diameter, such a mounting process is cumbersome. I had a problem.

The present invention has been made in order to solve the conventional problems as described above, because it does not need to provide a separate auxiliary brush holder, the structure of the main body portion can be made compact (Compact), the risk of loss is prevented and easy operation It is an object of the present invention to provide an auxiliary brush of a vacuum cleaner, which can be easily used by itself and greatly improved in convenience.

In order to achieve the above object, the present invention, in the auxiliary brush that can be used to be mounted to the extension pipe for cleaning the window frame or the corner in the vacuum cleaner, having a cross-section covering the lower half of the extension pipe is movable in the longitudinal direction It is mounted so as to, the central boss is formed on both sides of the central boss, one end is attached to the bristles, while the front and rear parts around the circular boss to form a straight bottom cover: a circular hole formed in the circular boss of the lower cover The rotary shaft is inserted into the rotary shaft to be rotatable with respect to the lower cover, and an extension tube button is positioned on the central upper surface to form a movable long hole, and a hair brush is attached to one side end portion, and the upper half of the extension tube is attached. The front and rear parts of the front and rear centered on the axis of rotation have an angle at the top Contained upper cover: a coupling means for selectively engaging the front portion of the lower cover and the front portion of the upper cover, and the rear portion of the lower cover and the rear portion of the upper cover, respectively, with the rotational shaft and the circular boss as the center; By providing an auxiliary brush of the vacuum cleaner, characterized in that.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

As shown in the exploded perspective view of FIG. 3, the auxiliary brush 1 of the present invention is coupled to the lower cover 10 and the lower cover 10 having a U-shaped cross section surrounding the lower half of the extension pipe 116. Coupling means (70) for selectively coupling the front and rear portions of the upper cover (40) of the X-shaped cross section surrounding the upper half of the end of the extension pipe 116, the upper and lower cover (10) (40), respectively And the like. The lower cover 10 is formed on both sides 116a and 116b of the extension pipe 116 to form circular bosses 14a and 14b respectively movable in the longitudinal direction at the center of the upper surface. Further, circular holes 15a and 15b are formed in the centers of the circular bosses 14a and 14b, and the inner side surfaces 16a and 16b of the circular bosses 15a and 15b are respectively provided with a lower cover. It is formed on the same plane as the inner side surface 10a of (10).

In addition, the lower cover 10 has a straight line front and rear portions 18a and 18b centered on the circular bosses 14a and 14b, and a hair brush 20 is provided at the front end portion of the front portion 18a. On the other hand, on both sides of the circular bosses 14a and 14b, elastic flanges 72a and 72b which form part of the coupling means 70 to be described later are formed, respectively. In addition, a plurality of handle projections 22 are formed on the lower outer peripheral surface of the rear portion 18b.

On the other hand, the upper cover 40, which is coupled to the rotary shafts 42a and 42b to the circular bosses 14a and 14b of the lower cover 10, respectively, is provided with shaft protrusions 43a and 43b protruding outward on both sides. The rotary shafts 42a and 42b protrude to face each other on the inner surface of the rotary shafts 42a and 42b, and the rotary shafts 42a and 42b are fitted into the circular holes 15a and 15b of the circular bosses 14a and 14b, respectively. Will be. In addition, an elongated hole 45 having a movable size is formed on the central upper surface of the upper member 40 by the extension pipe button P, and the pressing protrusion 46a is provided on the lower surface at the front side of the elongated hole 45. The engaging piece 47 formed thereon is formed to protrude to a certain height. In addition, the front and rear portions 48a and 48b centered on the rotation shafts 42a and 42b are each formed to have an angled cross section and bent at an angle upward. In addition, an extension pipe fixing jaw 50 is formed on the inner surface of the front portion 48a and extends laterally downward, and each of the inner surfaces of the front and rear portions 48a and 48b has coupling means to be described later ( Concave cutting surfaces 74a and 74b constituting a part of 70 are formed on both sides, and stepped portions 75a and 75b are formed in the center of the concave cutting surfaces 74a and 74b, so that the concave cutting surfaces 74a are formed. The rotary shafts 42a and 42b are formed on planes 77a and 77b different from the 74b. And a hair brush 55 is attached to the front end portion of the front portion (48a), a plurality of handle projections 57 are formed on the upper outer peripheral surface of the rear portion (48b).

In addition, coupling means 70 for selectively coupling the front portion 18a and the front portion 48a and / or the rear portion 18b and the rear portion 48b of the upper and lower members 10 and 40. ) Has the elastic flanges 72a and 72b on the lower member 10 and concave cutting surfaces 74a and 74b on the upper member 40, respectively. In addition, the elastic flange (72a) (72b) is formed on the upper edge of the lower member 10, the stepped portion (80a) (80b) is formed to be connected to the upper portion of the stepped portion (80a) (80b) to the top, The elastic flanges 72a and 72b are gradually thinner as the thickness t progresses from the steps 80a and 80b to the upper portions, thereby providing elastic force when the elastic flanges 72a and 72b are coupled to the upper member 40. And, the outer surface of the elastic flanges (72a, 72b) are formed with a predetermined size of the engaging projections (82a, 82b), respectively, which are respectively concave cutting surfaces (74a, 74b) when combined with the upper cover (40) It is coupled to the provided locking grooves (84a) (84b).

The present invention configured as described above is mounted and stored at the lower end of the intermediate extension pipe 116 as shown in FIG. In this case, the intermediate extension tube 116 and the lower extension tube 116 'are coupled to each other, and the auxiliary brush 1 of the present invention has circular bosses 14a and 14b of the lower cover 10 as the intermediate extension tube 116. The upper cover 40 is located on both sides of the upper cover 40, the shaft projections 43a and 43b are located on both sides of the circular bosses 14a and 14b, and the rotary shafts 42a and 42b are circular holes ( The flat surfaces 77a and 77b are held in the state of being interviewed by the outer surfaces of the circular bosses 14a and 14b.

At this time, the extension pipe button (P) used to disassemble the middle extension pipe 116 and the lower extension pipe 116 'is located inside the long hole 45 of the upper cover 40, the user upper, lower cover 10 By pressing the rear portions 18b and 48b of the 40 toward the extension tube 116 side, the elastic flange 72b and the concave cut surface 74b on the rear portions 18b and 48b are engaged with the engaging projection 82b and the engaging groove. Coupled to each other by 84b, the elastic flange 72a and the concave cutting surface 74a on the front portions 18a and 48a are separated from each other. In addition, the extension pipe button P located in the long hole 45 has a pressing protrusion 46a of the locking piece 47 slightly bent upward from the lower side of the long hole 45 to press the extension pipe button P. In this state, it is held in the state of being caught by the upper edge of the extension pipe button P (see also FIG. 5B). Therefore, as the elastic repulsive force of the extension pipe button P pushes the locking piece 47 upward, the auxiliary brush 1 of the present invention is firmly maintained without being moved on the extension pipe 116. On the other hand, if the user wants to use the auxiliary brush (1) of the present invention in the state of being kept as described above, the user grasps the handle 22, 57 for the handle and pushes it to the lower part, and thus the pressing projection of the catching piece 47 The auxiliary brush 1 moves forward while the 46a presses the extension tube button P downward, and the lower extension tube 116 'is separated from the intermediate extension tube 116 as the extension tube button P is pressed. Further, when the auxiliary brush 1 is advanced, the extension pipe button P is positioned on the upper side of the long hole 45.

In this case, the front portions 18a and 48a of the upper and lower lids 10 and 40 pass through the distal end portion 116c of the intermediate extension pipe 116 with their distal ends separated, as shown in FIG. 6B. It protrudes a certain length.

Then, when the user presses the front portions 18a and 48a of the upper and lower lids 0 and 40 to be coupled to each other, the rear portion of the upper lid 40 around the rotation shafts 42a and 42b ( 48b is lifted up, and the front portion 48a is coupled to the front portion 18a of the lower cover 10, wherein the locking projection 82a of the elastic flange 72a is the locking groove 84a of the concave cutting surface 74a. ), And the engaging projection 82b of the elastic flange 72b is separated from the engaging groove 84b so that the front portions 18a and 18b form one cylindrical structure. In addition, the extension tube fixing jaw 50 provided on the inner surface of the front portion (48a) of the upper cover 40 is caught by the front end portion (116c) of the intermediate extension tube 116 as shown in FIG. The lower cover 10, 40 is prevented from being pushed backward along the extension pipe 116. On the other hand, when the use of the auxiliary brush 1 is finished in the above state, the user presses the rear portion 18b, 48b of the upper and lower lids 10 and 40, in contrast to the above, and the rear portion 18b ( 48b), the front portions 18a and 48a are separated from each other, and the handles 22 and 57 for the handle are pulled back and the upper and lower covers 10 and 40 are extended along the extension pipe 116. When the extension pipe button P in the long hole 45 is pushed downward by the pressing protrusion 46a of the locking piece 47, it is excessively caught and the lower side of the pressing protrusion 46a as shown in Fig. 5B). In contact with the lower surface of the piece 47. Therefore, since the auxiliary brush 1 is in the retracted state, the lower extension pipe 116 may be coupled to the distal end of the intermediate extension pipe 116 to perform the cleaning operation using the brush head 113.

Meanwhile, although the first embodiment of the present invention has been described above, since the second embodiment of the present invention shown in FIGS. 7 and 8 is mostly the same as the first embodiment, the same reference numerals are used for the same members. For the members with different configurations, the subscript () will be used to indicate. The auxiliary brush 1 shown in FIG. 7 forms an inclined surface 90 in which both edges of the front portion 48a of the upper member 40 gradually decrease toward the tip portion from the shaft protrusions 43a and 43b. . In addition, the front and rear portions 48a and 48b of the upper member 40 have a straight ∩-shaped cross-sectional structure that does not bend in the longitudinal direction, and the same concave as in the first embodiment on both inner side surfaces of the front portion 48a. It has a cutting surface 74a and a locking groove 84a. In addition, the lower member 10 has an elastic flange 72a formed in the front portion 18a having a relatively lower height than the elastic flange 72a of the first embodiment. In addition, each of the elastic flanges 72a is formed with the same locking projections 82a as in the first embodiment. The auxiliary brush 1 of the second embodiment as described above forms a cylindrical structure having an inner diameter narrower than the inner diameter of the extension tube 116 when the front parts 48a and 18a are coupled to each other by advancing forward of the extension tube 116. Done. Therefore, by providing a faster air flow it is possible to achieve more efficient debris removal.

According to the present invention as described above, there is no risk of loss because it is always stored mounted on the intermediate extension pipe (116). In addition, since the lower extension tube 116 ′ coupled with the intermediate extension tube 116 can be taken out and pushed toward the distal end side of the intermediate extension tube 116, the convenience in use is greatly improved. On the other hand, in the above, the auxiliary brush of the present invention is mounted on the intermediate extension pipe 116, the present invention is not limited to this, it can be combined on the lower extension pipe 116 'connecting the brush head 113. . In this case, the brush head is removed from the lower extension pipe and removed, and the upper and lower lids can be mounted in the same manner as above. Therefore, the present invention can be reduced in the size of the body portion, manufacturing cost can be reduced and the convenience in use can be greatly improved.

Claims (4)

In the auxiliary brush that can be mounted and used in the extension pipe 116 to clean the window frame or the corners of the vacuum cleaner 100, having a cross section covering the lower half of the end surface of the extension pipe 116 to be movable in the longitudinal direction Circular bosses 14a and 14b are formed on both sides of the central upper portion, and a hair brush 20 is attached to one end portion, and the front and rear portions 18a centered on the circular bosses 14a and 14b. Bottom cover 10 having a straight line (18b): the inside of the projections (43a, 43b) in the circular holes (15a, 15b) formed in the circular boss (14a, 14b) of the lower cover (10) Rotating shafts 42a and 42b are fitted to be connected to the lower cover 10 so as to be rotatable, and an elongated hole 45 is formed on the central upper surface thereof so that an extension pipe button P is positioned and is movable. While the hair brush 55 is attached, it has a cross section surrounding the upper half of the cross section of the extension pipe 116 The upper and lower parts of the front and rear parts 48a and 48b, which are centered on the rotary shafts 14a and 14b, are bent upward by a predetermined angle: the rotary shafts 42a and 42b and the circular boss 14a ( 14b), the front portion 18a of the lower lid 10 and the front portion 48a of the upper lid 40, and the rear portion 18b of the lower lid 10 and the rear of the upper lid 40. Auxiliary brush of the vacuum cleaner, characterized in that it comprises; coupling means (70) capable of selectively coupling the respective portions (48a). According to claim 1, The long hole 45, the front side of the upper cover 40, the engaging piece 47 formed with a pressing projection 46a on the lower surface protrudes a predetermined height to the upper portion of the extension pipe button (p) Auxiliary brush of the vacuum cleaner, characterized in that the upper and lower cover (10) and (40) by pressing in contact with the fixing pipe is configured to give a resistance to move in the longitudinal direction on the extension pipe (116). According to claim 1, The coupling means 70 is an elastic flange (72a, 72b) extending from the upper side on both sides of the circular boss (14a, 14b) of the lower cover 10, and the elastic flange (72a) ( Engaging projections 82a and 82b formed on the outer surface of 72b and concave cutting surfaces 74a and 74b which are formed on both side surfaces of the upper cover 40 and can be interviewed with the elastic flanges 72a and 72b, respectively. ) And engaging grooves 84a and 84b formed on the concave cut surfaces 74a and 74b corresponding to the engaging projections 82a and 82b, and the elastic flanges 72a and 72b of the lower cover. Each of the thickness (t) is gradually thinner as it proceeds from the step portion (80a) (80a) to the upper side of the auxiliary brush of the vacuum cleaner, characterized in that to give an elastic force when combined with the upper cover (40). According to claim 1, wherein the upper member (40 '') is formed with an inclined surface 90 is reduced in size toward the front end portion at both edges of the front portion (48a ''), the front portion (48a '') On both inner sides of the concave cutting surface 74a '' and the engaging groove 84a '' is formed, while the lower member 10 is an elastic flange 72a '' and the projection 82a 'on the front portion 18a. ') Is formed so that when the front portion (48a' ') (18a) of the upper, lower members 40' 'and 10 are combined, a cylindrical structure having an inner diameter smaller than the inner diameter of the extension tube 116 is formed Auxiliary brush for vacuum cleaner.