KR100778707B1 - Brush in vacuum cleaner - Google Patents

Abstract

A brush of a vacuum cleaner is provided to extend a collecting port to two edges of a lower case of a head unit and to collect dust on corners effectively by forming a belt on a center or a position separated from the center with a predetermined distance. A brush of a vacuum cleaner comprises a center shaft, a pipe member(232), a cap(234), and a hanging member(237). The pipe member is rotated by a bearing member fitted into the center shaft to be separated from the center shaft. The cap is integrally combined with the center shaft exposed to two sides of the pipe member to prevent separation of the pipe member. The hanging member is formed on a periphery separated from an end of the pipe member with a predetermined distance to hang a belt. The brush is formed on the periphery of the pipe member by the hanging member. The center shaft has two ends protruded to the outside of the cap to prevent separation from the cap and to insert a snap ring.

Description

Brush in vacuum cleaner

1 is an exploded perspective view of a head of a conventional vacuum cleaner.

2 is a bottom view of the head portion of a conventional vacuum cleaner.

3 is a bottom perspective view of the head of the vacuum cleaner according to the present invention.

Figure 4 is a bottom exploded perspective view of the head portion according to the present invention.

Figure 5 is a plan sectional view of the head portion showing the mounting state of the brush according to the invention.

6 is an exploded perspective view of a brush according to the present invention.

7 is a bottom perspective view of the head part in a state where a brush according to the present invention is removed.

<Description of Symbols for Main Parts of Drawings>

100,200: head 210: upper case

211: seating groove 211a: receiving groove

213: main suction pipe 215: mounting groove

216: drive motor 220: lower case

222: dust collecting mouth 226: cover

228: fixing protrusion 230: brush

231: central axis 232: pipe member

233a: bearing member 234: cap

235: hooking protrusion 237: hook member

240: incorrect assembly prevention member 242: installation

244: mounting ring 246: ball bearing

The present invention relates to a brush of a vacuum cleaner, and more particularly, to form a dust collecting port formed in the lower portion of the head of the vacuum cleaner to extend to both edges to position the belt to the brush to collect dust in the corner adjacent to the wall. The present invention relates to a brush of a vacuum cleaner, which enables to easily identify the assembly position of the brush in the changed box and the head part, thereby preventing the assembly of the brush by preventing misassembly of the brush.

In general, the vacuum cleaner has a dust collecting chamber and a driving chamber partitioned by an inner partition wall, and is detachably attached to a main body part which is movable by a wheel, a suction brush that sucks dust and the like on the main body, and a suction force control switch part. Flexible hoses that are equipped with a handle having a multi-stage connection and connected to the extension pipe, and a flexible hose that is coupled to the extension tube to form an air passage at the same time to be attached and detached to the dust collection chamber in the main body freely detachable The tip of the extension tube is provided with a suction brush that contacts the cleaning surface and sucks foreign substances such as dust.

Conventional head portion 100 used in the vacuum cleaner as described above, as shown in Figures 1 and 2, the brush member 113 attached to the brush 112 in a spiral to the lower case 110 is rotated. In addition to the installation, the driving motor 114 is installed on the support rib 120 on one side thereof, and the circuit board 122 having the fuse 121 is installed on the other side by the screw 123.

In addition, the rotating shaft 114a of the driving motor 114 and the brush member 113 are connected to the belt 115 as a power transmission means, and rollers 116 and 116 'are provided at both sides of the lower surface front of the lower case 110. Is rotatably coupled, and the lower case 110 has a structure in which an upper case 119 to which the suction pipe 118 is connected and fixed to the main inlet 117 is fixed.

Then, when the head portion 100 of the general vacuum cleaner rotates the drive motor 114, the rotational force of the drive motor 114 is transmitted to the brush member 113 through the belt 115, the brush By rotating the member 113, the brush 112 shakes off dust and foreign matter on the bottom surface, and the dust and foreign matter passes through the dust collector 124 and the suction pipe 118 of the lower case 110. It is collected by the dust collecting chamber built in.

However, the head portion of the conventional vacuum cleaner has a limitation in collecting dust in the vicinity of the wall by reducing the horizontal width of the dust collector in order not to expose the belt provided in the lower case to the outside through the dust collector.

In addition, the brush member constituting the head portion of a conventional vacuum cleaner is capped at both ends and mounted inside the lower case, and protrudes a roughly rectangular shape on the outside of the cap, and winds the brush member with a belt, thereby protruding the lower case. Working in the fixed position of the difficult to work and there was a problem that could be injured.

The present invention has been created by the necessity as described above, it is possible to change the position of the belt winding on the brush to a position of a predetermined distance from the edge to the center direction whereby the brush can be formed to extend to both edges of the brush wall, etc. The aim is to provide a brush for the vacuum cleaner that is capable of collecting dust even in the corners of the body.

In addition, the present invention is provided with a brush of the vacuum cleaner to prevent the misassembly of the brush by providing a misassembly preventing member in the lower case constituting the head portion to easily determine the position of the hook member to fasten the belt to the brush The purpose is to provide.

The present invention also provides a brush of a vacuum cleaner having a rib facing the upper case constituting the head part to prevent the shaking of the mounting ring by inserting the mounting ring forming the misassembly prevention member. have.

The present invention for achieving the above object is provided with a central axis, a tube member which is rotatably provided separately from the central axis by a bearing member inserted therein in a state fitted to the central axis and formed with a sole around the core, Caps integrally coupled with the central shaft exposed to both sides of the tube member and provided to prevent the separation of the tube member, and a hook formed around the position away from the end of the tube member a predetermined distance to wind the belt It is made to include a member, it is to propose a brush of the vacuum cleaner, characterized in that the brush member is formed in a continuous manner around the pipe member by the hook member.

The present invention is rotatably provided separately from the central axis by a bearing member inserted therein in a state of being fitted to the central axis and the central axis, and forms a sole around the seat and is seated in the seating groove of the upper case. A tube member exposed to the outside through a dust collecting port, and integrally coupled with the central axis exposed to both sides of the tube member is provided to prevent the separation of the tube member and protrudes outwardly to the lower case A cap installed so as not to be detached from the outside by a support, a hook member formed around a position away from the end of the pipe member by a predetermined distance to wind the belt, and the sole and the bottom of the seating groove rotated to support each of the caps It includes a locking jaw for preventing the contact of the surface, by the hook member the brush around the tube member Intended to propose a brush of the vacuum cleaner characterized in that the successively formed.

The present invention is to propose a brush of the vacuum cleaner to insert the snap ring on the central axis protruding to both ends of the cap to prevent mutual separation.

The present invention is to propose a brush of the vacuum cleaner, characterized in that to form the receiving grooves on both sides of the seating groove to receive the locking projections, and to remove the directionality during installation by forming the locking projections received in the receiving grooves in a circular shape. .

The present invention is to propose a brush of the vacuum cleaner to prevent the misassembly of the pipe member in the mounting groove by the misassembly preventing member formed in the lower case.

The present invention is a brush of a vacuum cleaner comprising an installation piece formed in the dust collecting port of the lower case and the installation ring is formed in the installation piece as the misassembly prevention member and the hook ring is inserted into the mounting groove. I would like to suggest.

The present invention is to propose a brush of the vacuum cleaner, characterized in that the rib is provided in the seating groove to prevent the swing of the mounting ring by contacting both edges of the mounting ring, respectively.

The present invention is to propose a brush of the vacuum cleaner, characterized in that to prevent friction through the ball bearing between the hook member and the mounting ring.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the brush of the vacuum cleaner according to the present invention.

Figure 3 is a bottom perspective view of the head portion of the vacuum cleaner according to the present invention, Figure 4 is a bottom exploded perspective view of the head portion according to the present invention, Figure 5 is a plan sectional view of the head portion showing the mounting state of the brush according to the present invention.

And, Figure 6 is an exploded perspective view of the brush according to the present invention, Figure 7 is a bottom perspective view of the head portion in a state in which the brush according to the present invention is removed.

As shown in Figure 3 and 4, the head portion 200 of the vacuum cleaner according to the present invention is composed of an upper case 210, a lower case 220 and a brush 230.

The upper case 210 forms a seating groove 211 for rotatably mounting the brush 230.

The upper case 210 has a passage 213a connected to the main suction pipe 213.

Thus, the collected dust is moved to the suction groove 211 is moved through the passage (213a) and the main suction pipe (213).

In addition, the upper case 210 is provided with a plurality of wheels 214 to facilitate movement during dust collection cleaning.

On the other hand, the lower case 220 serves to cover the seating groove 211 of the upper case 210.

In this case, the lower case 220 is integrally coupled by bolting the edge of the seating groove 211 and the bolt 224 of the upper case 210.

In addition, the lower case 220 forms a dust collecting port 222 to communicate the seating groove 211 of the upper case 210 with the outside.

On the other hand, the brush 230 has a cap 234 at both edges, and forms a brush 232a around the brush 230.

In particular, as the cap 234 of the brush 230 is caught and supported by the locking step 212 formed on both sides of the seating groove 211 of the upper case 210, the brush 232a is seated groove 211 when rotating with electric power It is preferable not to contact the inner surface of the c).

At this time, the locking step 212 is made of the same curvature as the cap 234.

On the other hand, the cap 234 is formed to protrude the engaging projection 235 on both sides, the locking projection 235 is mounted to the upper case 210 and then supported by the lower case 220 of the brush 230 Prevent rocking and dropping.

In more detail, the upper case 210 forms receiving grooves 211a that are opened in the lower case 220 on both side surfaces of the seating groove 211.

In addition, the lower case 220 protrudes toward the upper case 210 with the fixing protrusions 228 on both edges thereof.

Thus, as shown in FIG. 7, when the upper case 210 and the lower case 220 are coupled, the fixing protrusion 228 prevents the open upper portion of the accommodation groove 211a so that the locking protrusion 235 is closed. This prevents breakouts and shakes.

In addition, since the brush 230 is rotated by the electric force, the belt 217 is wound to receive the electric force.

In this case, the brush 230 forms a hook member 237 to wind the belt 217.

Here, the belt 217 is preferably to be embedded in the upper case 210.

Thus, the upper case 210 forms a mounting groove 215 connected to the receiving groove 211a to accommodate the belt 217.

At this time, since the mounting groove 215 is opened to the outside it is preferable to cover it in the assembled state.

Thus, the lower case 220 is formed to extend the cover 226 to be inserted into the mounting groove 215.

In particular, the hook member 237 is formed around the position away from the end of the tube member 232 by a predetermined distance so that the sole 232a is formed discontinuously by the hook member 237.

Since the hook member 237 is formed at a position away from the end of the tube member 232 by a predetermined distance, the hook member 237 may be represented as being eccentrically positioned at the center of the tube member 232, or may be formed at the center of the tube member 232. It may be.

The present invention shows that the hook member 237 is eccentrically formed in the pipe member 232.

In this case, the mounting groove 215 is formed inside the upper case 210 to be in line with the hook member 237.

As a result, since the hook member 237 is formed at a position away from the cap 234 around the brush 230, the brush 232a extends to both ends of the brush 230 in which the cap 234 is installed. Can be.

That is, the brush 232a extends to both edges of the brush 230 and the dust collecting hole 222 of the lower case 220 exposes the entire brush 232a to the outside for dust collecting. As the distance L of the edge of the lower case 220 adjacent to the edge thereof is shortened, dust collection in a corner such as a wall can be easily collected.

At this time, the brush 232a is formed in a spiral direction along the circumference of the brush 230.

As shown in FIGS. 5 and 6, in more detail, the brush 230 includes a central axis 231, a pipe member 232, a bearing member 233a, a cap 234, and a hook member 237. It is composed.

The central axis 231 forms the center of the brush 230, the tube member 232 is inserted in the axial direction to the central axis 231.

At this time, the pipe member 232 is formed on the circumferential surface of the sole 232a in the form of a spiral, the hook member 237 is formed so as to be partially eccentric with respect to the center in the longitudinal direction, and installed to be rotated separately from the central axis 231 do.

Here, the hook member 237 is made of a larger diameter than the tube member 232 to be distinguished from the circumference of the tube member 232 forming the sole 232a.

More specifically, the pipe member 232 is forcibly inserted into the pocket 233c at both ends, and the washer 233b and the bearing member 233a are sequentially inserted into the pocket 233c.

The pocket 233c prevents the edge from being completely inserted into the tube member 232 by engaging the edge of the tube member 232.

Of course, the central shaft 231 inserts the pocket 233c, the washer 233b and the bearing member 233a in order in the outward direction from the center of the tube member 232.

In addition, the pipe member 232 is covered with both ends of the cap 234.

At this time, the washer 233b serves to prevent the bearing member 233a from moving in the axial direction of the central axis 231.

In particular, the central shaft 231 is formed to protrude outward through the insertion hole 236 formed in the cap 234, the end of the protruding central axis 231 is fitted to the snap ring (231a) As a result it is prevented from falling out of the tube member (232).

Ends of the insertion hole 236 and the central axis 231 are formed in a substantially half-moon shape is installed to be fixed to each other.

Therefore, since the cap 234 is mounted inside the locking jaw 212 of the upper case 210 and does not rotate, the central axis 231 does not rotate.

Since the pipe member 232 is hung on the belt 217, the pipe member 232 is rotated by the rotational force transmitted by the belt 217, and the rotational force of the pipe member 232 is transferred to the central axis 231 by the bearing member 233a. Not delivered.

In addition, the cap 234 protrudes to form an engaging projection 235 to the outside, respectively.

The locking protrusion 235 protrudes from the center of the cap 234, and forms an insertion hole 236 to expose the outside by inserting the central axis 231.

In addition, the locking protrusion 235 is preferably to be fixed in the seating groove 211 of the upper case 210.

Thus, the seating groove 211 is formed to accommodate the receiving grooves (211a) on both sides of the inside so that the engaging projection 235 can be inserted.

At this time, since the brush 230 is in a state in which the belt 217 is wound, the worker forcibly pulls the locking protrusion 235 into the receiving groove 211a while simultaneously pulling the brush 230 into the seating groove 211. It will settle down.

Thus, the locking protrusion 235 is preferably formed in a circular shape so as to be easily inserted into the receiving groove (211a) by removing the orientation during installation.

Here, the upper case 210 is mounted inside the drive motor 216 is driven to rotate the rotary shaft 216a, the rotary shaft 216a is located in the mounting groove 215, the belt 217 Is installed to be caught on the rotating shaft 216a and the hook member 237.

On the other hand, the pipe member 232 of the brush 230 is preferably formed in the seating groove 211 of the upper case 210 because the hook member 237 is formed eccentrically with respect to the center.

As shown in FIGS. 4 and 7, the pipe member 232 of the brush 230 is assembled in place by the misassembly preventing member 240.

The misassembly preventing member 240 is composed of an installation piece 242, the installation ring 244 and the ball bearing 246.

The installation piece 242 is formed at the dust collecting port 222 of the lower case 220.

In addition, the installation ring 244 protrudes from the installation piece 242 toward the upper case 210 and has a circular ring shape.

Thus, as the brush 230 is inserted into the mounting ring 244, the hook member 237 is located in the mounting ring 244.

At this time, the installation ring 244 is preferably made to be located at both edges of the hook member 237.

In addition, since the brush 230 is rotated, the installation ring 244 is shaken.

Thus, a pair of ribs 245 protrude from the seating grooves 211 of the upper case 210 so as to insert the respective installation rings 244.

That is, the pair of ribs 245 are in contact with both side surfaces of one mounting ring 244 to prevent shaking of the mounting ring 244.

In particular, the brush 230 may be prevented from bending as it is inserted into and supported by the installation ring 244.

In addition, when the brush 230 is rotated, the mounting ring 244 and the hook member 237 generate friction, and the mounting ring 244 and the hook member 237 may be worn, and noise may be generated. .

Therefore, it is preferable that a ball bearing 246 be interposed between the installation ring 244 and the hook member 237.

As described above, the brush of the vacuum cleaner according to the present invention has a dust collecting port for collecting dust by hanging the belt at a predetermined distance away from the center or at the center, unlike the conventional belt hanging on the edge, both sides of the lower case of the head portion. Since it can extend to the edges, there is an effect of collecting dust to corners such as walls.

In addition, the present invention has an effect of preventing the bending of the brush by supporting the brush once more while preventing the assembly failure due to the misassembly by providing a misassembly preventing member in the lower case forming the head.

Claims (8)

A central axis; A tubular member rotatably provided separately from the central shaft by a bearing member inserted therein in a state of being fitted to the central shaft and having a sole formed around the central shaft; A cap integrally coupled with the central shaft exposed to both sides of the tube member and provided to prevent separation of the tube member; It is formed around the position of a predetermined distance away from the end of the tube member and comprises a hook member for winding the belt, The sole is formed discontinuously around the pipe member by the hook member, The central axis of the vacuum cleaner brush, characterized in that to install a snap ring to protrude both ends of the cap to prevent separation from the cap. A central axis; It is rotatably provided separately from the central axis by a bearing member inserted therein while being fitted to the central axis, forms a sole around the seat, and is seated in the seating groove of the upper case and is externally provided through the dust collecting port of the lower case. And the tube member exposed to; A cap which is integrally coupled with the central shaft exposed to both sides of the tube member and is provided to prevent the tube member from being separated, and the cap is installed so as not to be separated from the outside by supporting the locking protrusion protruding outwardly from the lower case; A hook member formed around a position away from the end of the pipe member by a predetermined distance to wind the belt; It includes a locking step for preventing the contact of the bottom of the seating groove and the sole rotated to support each of the cap, The brush is a brush of the vacuum cleaner, characterized in that formed by the hook member discontinuously around the tube member. The method of claim 2, The central axis of the vacuum cleaner brush, characterized in that to install a snap ring to protrude both ends of the cap to prevent separation from the cap. The method of claim 2, The seating groove forms a receiving groove for receiving the locking projections on both sides of the inside; The locking projection is a brush of the vacuum cleaner, characterized in that formed in a circular shape to remove the direction accommodated in the receiving groove. The method of claim 2, The pipe member is a brush of the vacuum cleaner, characterized in that for positioning the hook member seated in the seating groove by the misassembly prevention member formed in the lower case. The method of claim 5, The misassembly preventing member includes an installation piece formed at a dust collecting port of the lower case; The brush of the vacuum cleaner is formed on the mounting piece, the hook member is inserted, and the mounting ring is accommodated in the seating groove. The method of claim 6, The seating groove is a brush of the vacuum cleaner, characterized in that to form a pair of ribs in contact with each of the two edges of the mounting ring to prevent rocking of the mounting ring. The method of claim 6, The brush of the vacuum cleaner, characterized in that the ball bearing is interposed between the hook member and the installation ring to prevent friction.

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