JP4825563B2 - Rotating cleaning body and electric vacuum cleaner provided with the same - Google Patents

Description

  The present invention relates to a rotary cleaning body in which a base material on which a large number of brush hairs are fixed is held by a rotary shaft portion, and a vacuum cleaner including the rotary cleaning body.

  Conventionally, as shown in FIG. 7 (a), an electric vacuum cleaner including a rotary shaft 2 having an insertion groove 2a formed along the longitudinal direction and a cleaning member S held in the insertion groove 2a. The rotary cleaning body 1 is known (see, for example, Patent Document 1).

  Here, as shown in FIG. 7B, the cleaning member S includes a holding portion 3a inserted into the insertion groove 2a and a rib portion 3b extending from the holding portion 3a in the radial direction of the rotary shaft portion 2. And a brush member 4 having a base member 4a inserted into the insertion groove 2a and a large number of bristles 4b planted in the base member 4a.

  Both the holding portion 3a and the rib portion 3b of the blade member 3 are integrally formed of a soft resin, and the holding portion 3a and the rib portion 3b have a belt shape that is substantially orthogonal to each other.

Moreover, the base material 4a of the brush member 4 is formed of a soft resin material extending in a strip shape, and the base ends of the brush hairs 4b are fixed to the base material 4a. That is, the brush bristles 4b are separated from each other from the proximal end portion to the distal end portion.
JP 2006-26222 A

  By the way, in the above-described rotary cleaning body 1, when thread-like dust is entangled, the dust enters the gap between the bristles 4a, and the thread-like dust is wound around the rotary shaft portion 2 and can be easily removed. There wasn't.

  In addition, even if thread-like dust is entangled with the belt-like blade member 3, the dust does not wrap around the rotary shaft portion 2. However, when the cleaning member S is entirely constituted by the blade member 3, the waste material such as flooring is not covered. It was difficult to sufficiently clean the cleaning surface.

  SUMMARY OF THE INVENTION Therefore, the present invention provides a rotary cleaning body and a vacuum cleaner equipped with the rotary cleaning body that can easily remove the entangled thread-like dust while preventing it from entering between a large number of brush hairs even if the thread-like dust is entangled. The purpose is to provide.

In order to solve the above problems, this invention includes a rotary shaft portion is inserted groove extending along the longitudinal direction on the peripheral surface is formed, and a strip-shaped substrate to be inserted and held in the insertion groove, the group A rotary cleaning body comprising a plurality of brush bristles fixed to a material and projecting in a radial direction of the rotary shaft portion, wherein the plurality of brush bristles are connected to each other along the longitudinal direction in the vicinity of the tip portion. Connection means is provided, and the connection means is a thread material sewn on the plurality of brush hairs.

  According to the electric vacuum cleaner of the present invention, even if thread-like dust gets entangled, it is possible to prevent the thread-like dust from entering the vicinity of the root of the brush hair by the connecting means. Therefore, it is possible to prevent thread-like dust from being wound directly around the rotating shaft portion.

  Furthermore, thread-like dust is caught on the connecting means, and the thread-like dust does not enter between a large number of brush hairs, and this thread-like dust can be easily removed.

  BEST MODE FOR CARRYING OUT THE INVENTION A best mode for carrying out a rotary cleaning body and a vacuum cleaner provided with the same according to the present invention will be described below with reference to the drawings.

  The vacuum cleaner 10 shown in FIG. 1 includes a vacuum cleaner body 11, a dust collection hose 12 having one end detachably connected to a hose connection port 11a provided at a front end portion of the vacuum cleaner body 11, and the dust collection hose. 12 is provided with an extension pipe 14 that is detachably connected to a hand operation pipe 13 provided at the other end of 12, and a suction port body 20 that is detachably connected to a distal end portion of the extension pipe 14.

  Further, inside the cleaner body 11, a dust collection chamber 15 is formed on the front side, and an electric blower 16 that applies a negative pressure to the dust collection chamber 15 is arranged on the rear side. A dust collection bag 17 is detachably mounted in the dust collection chamber 15.

  The hand operating tube 13 is provided with an operating portion 13A, and the operating portion 13A is provided with strong and weak switches Sa and Sb, an off switch Sc and the like for setting the strength of the electric blower 16.

  As shown in FIGS. 2 and 3, the suction port body 20 has a suction port body 21 having a suction chamber 23 in which a suction port 22 is formed on a bottom surface 21 </ b> A (see FIG. 3) that faces the surface to be cleaned during cleaning, A rotary cleaning body 30 (see FIG. 4) rotatably arranged in the suction chamber 23, a rotary tube 24 attached to the rear part of the suction port body 21 so as to be rotatable around an axis O extending in the front-rear direction, and this rotation A connecting pipe 25 is attached to the pipe 24 so as to be rotatable in the vertical direction.

  In FIG. 2, V indicates a bumper attached around the suction port body 21 of the suction port body 20, and Va indicates a front end surface of the bumper.

  The suction inlet main body 21 includes a main body case 26 that holds the rotary tube 24, a lid case 27 that is detachably attached to the upper surface of the main body case 26, and an upper portion 28 </ b> A attached to the lid case 27 via an axis J. The main body case 26 and the lid case 27 form a suction chamber 23. Then, when the lid case 27 is removed from the main body case 26, the front surface and the upper surface of the suction chamber 23 are opened, and the rotary cleaning body 30 is exposed. Accordingly, thread-like dust (hereinafter referred to as lint) entangled with the rotary cleaning body 30 can be easily removed, and the rotary cleaning body 30 can be easily attached and detached.

  The front lid 28 is inclined obliquely so as to protrude forward as it goes toward the lower portion 28B, and the lower portion 28B protrudes forward from the front end face Va of the bumper V. A predetermined gap is formed between the lower portion 28B of the front lid 28 and the surface to be cleaned, and dust can be sucked through the gap.

  Further, the front cover 28 rotates about the axis J when the suction port body 20 is pressed against a wall or the like, and the lower portion 28B is drawn into the suction chamber 23 side. When the front cover 28 is pulled in, the gap between the lower portion 28B and the surface to be cleaned becomes narrow, and the suction force for sucking dust from this gap increases. Thereby, the dust near a wall can be cleaned efficiently.

  The rotary cleaning body 30 is driven to rotate by a motor (not shown). When the detection means (not shown) does not detect that the suction port body 20 is placed on the surface to be cleaned, the motor is driven. Is stopped, and the rotation of the rotary cleaning body 30 is stopped.

  As shown in FIG. 4A, the rotary cleaning body 30 includes a rotary shaft portion 31 in which a plurality of insertion grooves 31A to 31D extending along the longitudinal direction are formed on the peripheral surface, and insertion grooves 31A and 31C. And a pair of brush members 40 and 40 held in the insertion grooves 31B and 31D.

  The rotating shaft portion 31 is made of metal, and bearings 32A and 32A are provided at both ends. Further, the insertion grooves 31A to 31D are respectively formed in a spiral shape at equal intervals, and the width of the opening is narrower than the internal width (see FIG. 4B).

  The blade member 33 has a belt-like base portion 33A inserted and held in the insertion groove 31A (31C), and a rib portion 33B protruding from the base material 33A. The base portion 33A and the rib portion 33B are made of a soft resin. Are integrally molded.

  The base 33A is set to be wider than the width of the opening of the insertion groove 31A (31C) so as not to come out of the opening.

  On the other hand, the rib portion 33 </ b> B has substantially the same thickness as the opening of the insertion groove 31 </ b> A (31 </ b> C), and protrudes in the radial direction of the rotary shaft portion 31 from the opening. Further, a plurality of ridges 33C extending in the longitudinal direction are formed at the tip of the rib portion 33B.

  As shown in FIGS. 5 (a) and 5 (b), the brush member 40 has a belt-like base material 41 inserted and held in the insertion groove 31B (31D), and a base end portion is implanted into the base material 41 and fixed. And a large number of brush bristles 42.

  The base material 41 is made of a synthetic fiber that is set wider than the width of the opening of the insertion groove 31B (31D), and has a hardness that does not come out of the opening.

  A large number of brush bristles 42 are made of synthetic fibers formed in a thin bristle shape, and protrude in the radial direction of the rotary shaft portion 31 from the opening of the insertion groove 31B (31D). Further, the large number of brush hairs 42 are sewn in the vicinity of the tip end portion 42 </ b> A along the longitudinal direction by the thread material 43, and are connected to each other.

  As a result, the thread material 43 serves as a connecting means for connecting a large number of brush hairs 42, and the thread material 43 closes an intermediate portion of the brush hairs 42.

  Next, operation | movement of the rotary cleaning body 30 comprised as mentioned above and the vacuum cleaner 10 provided with this is demonstrated.

  First, as shown in FIG. 1, a dust collection hose 12 is connected to a hose connection port 11 a of the vacuum cleaner main body 11, and a suction port body is connected to a local operation tube 13 provided on the dust collection hose 12 via an extension tube 14. 20 is connected. And if the strong switch Sa of the operation part 13A of the hand operation tube 13 is operated, the electric blower 16 is driven. By driving the electric blower 16, dust is sucked together with air from the suction port 22 of the suction port body 20.

  The sucked air and dust are passed from the suction opening 20 to the dust collection bag 17 attached to the dust collection chamber 15 in the cleaner body 11 through the extension pipe 14, the hand control pipe 13 and the dust collection hose 12 in this order. Sucked. The dust is collected in the dust bag 17 and the air is sucked into the electric blower 16 and discharged from an exhaust port (not shown) to the atmosphere.

  On the other hand, in the suction chamber 23 of the suction port body 20, the rotary cleaning body 30 is rotationally driven by a motor (not shown), and the rotation of the rotary cleaning body 30 causes the blade member 33 and the brush member 40 to remove dust on the surface to be cleaned. I'm going to scrape it up. The dust thus picked up is sucked into the extension pipe 14 from the suction chamber 23 through the rotary pipe 24 and the connecting pipe 25.

  When the lint is sucked, the rotating cleaning body 30 is entangled and the lint is collected by the rotating cleaning body 30.

  At this time, since many brush hairs 42 are connected to each other by the thread material 43 in the brush member 40, it is possible to prevent the thread waste from being caught by the thread material 43 and entering the vicinity of the root of the brush hair 42. . Thereby, it is possible to reliably prevent lint from being directly wound around the rotary shaft portion 31.

  Furthermore, since the lint caught on the thread material 43 is entangled in the vicinity of the tip end portion 42A of the bristles 42, it can be easily removed without entering between the bristles 42.

  Further, since the thread material 43 connects the vicinity of the tip end portion 42A of the brush hair 42, the flexibility of the base end portion of the brush hair 42 is not lost. Therefore, even if the brush member 40 comes into contact with the front cover 28 drawn to the suction chamber 23 side when the suction port body 20 is pressed against a wall or the like, the brush hair 42 can be easily bent from the base end portion. The rotation of the rotating shaft portion 31 is not hindered.

  Furthermore, in the above-described embodiment, the connecting means is the thread material 43 sewn in the longitudinal direction on the large number of brush hairs 42. Therefore, the thread material 43 that is the connecting means can be easily provided, and the manufacturing cost can be reduced. Can be reduced.

  The connecting means is not limited to the thread material 43, and may be, for example, a soft resin material 53 integrally attached to a large number of brush bristles 52 as shown in FIG.

  In another example of the brush member 50, a base end portion of a large number of brush bristles 52 is fixed to a belt-like base material 51, and a soft resin material 53 is attached in the vicinity of a front end portion 52A of the brush bristles 52. The soft resin material 53 is connected to or welded to a large number of brush bristles 52 so that lint does not enter between the bristles 52.

It is the perspective view which showed the external appearance of the vacuum cleaner which concerns on this invention. It is the perspective view which showed the external appearance of the suction inlet body of the vacuum cleaner shown in FIG. It is AA sectional drawing in FIG. (A) is the perspective view which showed the external appearance of the rotary cleaning body which concerns on this invention, (b) is BB sectional drawing in Fig.4 (a). (A) is a perspective view which shows the external appearance of a brush part, (b) is a side view when it sees from the arrow C direction in Fig.5 (a). It is a perspective view which shows the external appearance of the other example of a brush part. (A) is the perspective view which showed the external appearance of the conventional rotary cleaning body, (b) is DD sectional drawing in Fig.7 (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 30 Rotating cleaning body 31 Rotating shaft part 31B, 31D Insertion groove 41 Base material 42 Brush hair 43 Connection means (thread material)

Claims (2)

A rotating shaft portion in which an insertion groove extending along the longitudinal direction is formed on the peripheral surface, a belt-like base material inserted and held in the insertion groove, and a radial direction of the rotating shaft portion fixed to the base material A rotary cleaning body with a number of protruding bristles,
The plurality of brush bristles are provided with connection means for connecting the vicinity of the tip portion along the longitudinal direction,
The rotating cleaning body, wherein the connecting means is a thread material sewn on the plurality of brush bristles. An electric vacuum cleaner comprising the rotary cleaning body according to claim 1 .

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