JP2016158778A - Brush and rotary brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brush and a rotary brush that can suppress entanglement of hair or the like in a simple structure.SOLUTION: The brush is provided with a fluff body 41 having: a plurality of threads 45; and a plurality of holding threads 46 which connect the plurality of threads 45 in a state that the plurality of threads 45 are arrayed in a second direction B, a direction orthogonal to a first direction A where the plurality of threads 45 extend. In the fluff body 41, the inner region UR, which is a region between the holding thread 46 arranged in the most one end side of the first direction A and the holding thread 46 arranged in the most the other end side, is wider than each of the first outer region SR1 and the second outer region SR2 across the inner region UR in the first direction A.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a brush used for, for example, a vacuum cleaner and a rotating brush provided with the brush.

  Generally, the vacuum cleaner includes a main body portion and a head connected to the main body portion via a connection pipe. While moving the head on a floor surface such as a carpet, flooring, tatami mat or the like, dust is sucked into the main body by sucking air from a suction port provided on the bottom surface of the head. In recent years, for example, many vacuum cleaners having a rotating brush in the head have been seen to improve the dust collection ability for floor surfaces that are difficult to suck dust by air suction such as carpets. (For example, see Patent Document 1).

  Such a rotating brush includes a rotating body and a plurality of brushes attached to the peripheral surface of the rotating body. By rotating the rotating body, the plurality of brushes scrape off dust on the floor surface. It has become. This brush has a band-shaped base material, a fluff portion constituted by a large number of fluffs standing on the base material, and is ultrasonically welded to the base material and the fluff portions while standing in the fluff part on the base material. The height of the film member from the base material is set to be slightly lower than the height of the fluff portion from the base material.

JP 2011-182874 A

  By the way, since the brush as described above has a film member, when scraping off dust such as hair on the floor or pet hair, it is difficult for such hair to get entangled. On the other hand, since the complicated work of ultrasonically welding the film member is required, there is a problem that the number of parts increases and the configuration becomes complicated.

  The present invention has been made paying attention to such problems. An object of the present invention is to provide a brush and a rotating brush that can suppress tangling of hair and the like with a simple configuration.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A brush that solves the above-described problem is a brush that has a plurality of yarns in a state in which the plurality of yarns are juxtaposed in a second direction that is a direction orthogonal to a first direction in which the plurality of yarns extend. A fluff body having a plurality of holding yarns to be connected, and in the fluff body, between the holding yarn arranged on the most end side in the first direction and the holding yarn arranged on the most other side. The inner region, which is a region, is wider than each of the two outer regions sandwiching the inner region in the first direction.

  According to this configuration, since the inner region is wider than each of the two outer regions, for example, one end side in the first direction of the fluff body is slid on the floor surface to scrape off dust such as hair on the floor surface. In this case, it is possible to suppress such hairs from entering the fluff body deeply by the holding thread, and to prevent the hair from being entangled with the fluff body. Therefore, unlike conventional ones, it is possible to prevent hairs from getting tangled in the fluff body without using a film member, so that the complicated work of ultrasonically welding the film member at the time of manufacture becomes unnecessary, and the number of parts does not increase. . Therefore, it can suppress that hair etc. get entangled with a simple structure.

In the brush, the inner region is preferably wider than the sum of the two outer regions.
According to this configuration, since the inner region is further widened, it is possible to suppress the hair and the like from entering the fluff body deeply by the holding thread.

In the brush, it is preferable that the plurality of holding yarns are arranged in the inner region so as to be equally spaced in the first direction.
According to this structure, it can suppress that hair etc. get entangled in the inner area | region of a fluff body with a holding thread | yarn.

In the brush, the holding yarn preferably includes a hot-melt fiber that is melted by heating.
According to this configuration, the plurality of yarns can be firmly connected by the holding yarns by heating the holding yarns and melting the hot-melt fibers.

The brush preferably includes a base material that is joined in a state of sandwiching one side of the fluff body in the first direction so as to cover at least one of the holding yarns.
According to this structure, a brush can be easily attached to a to-be-attached part by making a base material into the shape which can be attached to a to-be-attached part.

  A rotating brush that solves the above problem includes a rotating body and a brush that is attached to the rotating body, and is used so that the brush comes into contact with a contacted part while rotating the rotating body. Is constituted by the brush configured as described above.

  According to this structure, it can suppress that garbage, such as the hair on a to-be-contacted part, is entangled with a brush by use of a rotating brush. Therefore, it can suppress that hair etc. get entangled with a simple structure.

  According to the present invention, it is possible to suppress tangling of hair or the like with a simple configuration.

The plane cross-section schematic diagram which shows the head of the vacuum cleaner of one Embodiment. The side cross-sectional schematic diagram which shows the use condition of the head of a vacuum cleaner. The schematic perspective view which shows the rotating brush of a vacuum cleaner. The side surface enlarged view of FIG. The model perspective view of the brush used for a rotating brush. The plane schematic diagram of the fluff of a brush. The plane schematic diagram which shows the manufacturing process of a fluff body. The plane schematic diagram which shows the manufacturing process of a fluff body. (A)-(c) is a plane schematic diagram of the fluff in the brush of the example of a change.

Hereinafter, an embodiment of a rotating brush will be described with reference to the drawings.
As shown in FIGS. 1 and 2, a head 11 of a vacuum cleaner for sucking in dust such as hair and dust on a floor surface F as an example of a contacted portion includes a case 12 having a substantially T-shape in plan view. I have. One end side of the connection pipe 13 is rotatably connected to the rear end portion of the case 12 with respect to the case 12, and the other end side of the connection pipe 13 is connected to a main body (not shown) of the vacuum cleaner. A rectangular suction port 14 elongated in the left-right direction is formed at a position on the front end side of the bottom wall of the case 12 so as to penetrate the bottom wall.

  A partition plate 15 having a rectangular frame shape is erected on the inner bottom surface of the case 12 so as to surround the suction port 14, and an air is formed so as to penetrate the rear wall at the center portion of the rear wall constituting the partition plate 15. A suction port 16 is formed. A motor bearing 17 is provided on the left inner surface of the case 12, and the motor bearing 17 rotatably supports the tip of a motor shaft 19 extending from a motor 18 provided behind the partition plate 15 in the case 12.

  A rotation support 20 is provided on each of the left and right side walls of the partition plate 15, and both the rotation supports 20 are rotatably supported by brush bearings 21 provided on both the left and right inner surfaces of the case 12. A rotating brush 22 having a rotation axis extending in the left-right direction is accommodated inside the partition plate 15, and both ends of the rotating brush 22 are supported by both rotating supports 20.

  One endless belt 23 is wound around the left rotation support 20 and a pulley 19 a attached to the motor shaft 19. Then, by driving the motor 18, the rotational driving force of the motor 18 is transmitted to the rotating brush 22 via the motor shaft 19, the pulley 19a, the belt 23, and the left rotation support body 20.

Next, the configuration of the rotating brush 22 will be described in detail.
As shown in FIGS. 3 and 4, the rotary brush 22 includes a substantially round bar-like rotary body 31 having a substantially X-shape in cross section and four cleaning brushes 32 attached to the rotary body 31. ing. The rotating body 31 is integrally connected so that the base end portions of the four protruding ridges 31a each having a substantially T shape in cross section are arranged at equal intervals along the circumferential direction of the rotating body 31. In addition, the entire shape is twisted about 180 degrees in the circumferential direction.

  Therefore, on the circumferential surface of the rotating body 31, four concave grooves 33 that form a spiral shape between the protrusions 31 a adjacent to each other in the circumferential direction of the rotating body 31 are formed. These four concave grooves 33 extend from one end face of the rotating body 31 to the other end face so as to be arranged at equal intervals along the circumferential direction of the rotating body 31. The brushes 32 are detachably mounted one by one in these concave grooves 33. In addition, the opening part 33a of each concave groove 33 is narrowed by the protrusion 31b with which the front-end | tip part of each protrusion 31a was equipped.

Next, the configuration of the brush 32 will be described in detail.
As shown in FIG. 5, the brush 32 includes a long base 40 and a strip-shaped fluff 41 joined to the base 40. The substrate 40 is formed by extruding a thermoplastic synthetic resin (in this embodiment, polyamide). The base material 40 has a rectangular locking portion 42 to be inserted and locked in the concave groove 33 (see FIG. 4) of the rotating body 31, and the width direction of the band-like fluff body 41 (vertical direction in FIG. 5). ) Is provided with a holding portion 43 provided in the locking portion 42.

  The clamping part 43 is configured by a pair of rectangular clamping pieces 43 a erected on the locking part 42 so as to face each other in the short direction of the locking part 42. The distal end sides of the pair of sandwiching pieces 43a extend perpendicular to the proximal end sides of the pair of sandwiching pieces 43a so as to be separated from each other in the short direction of the locking portion 42. That is, the distal end side of the pair of sandwiching pieces 43 a extends in parallel with the locking portion 42. And the base end side in both clamping pieces 43a is sewn (joined) to the fluff body 41 by one sewing thread 44 in a state where one end (one side) in the width direction of the fluff body 41 is clamped. .

  As shown in FIGS. 4 and 5, the width of the locking portion 42 in the width direction of the base material 40 is larger than the width of the opening 33 a of the concave groove 33 of the rotating body 31. And when attaching the brush 32 to the rotary body 31, the base material 40 of the base material 40 is inserted into each concave groove 33 from the end of the rotary body 31 so that the fluff body 41 protrudes outward from the opening 33a of the concave groove 33. The locking portion 42 is inserted by sliding. Then, since the base material 40 (brush 32) has appropriate rigidity and elasticity, the base material 40 (brush 32) is easily attached to the rotating body 31 in a state of being spirally twisted along each concave groove 33.

Next, the configuration of the fluff body 41 will be described in detail.
As shown in FIG. 6, the fluff body 41 includes a plurality of U-shaped yarns 45 and a plurality of yarns in a second direction B that is a direction orthogonal to the first direction A in which the plurality of yarns 45 extend. And a plurality of holding yarns 46 for connecting the plurality of yarns 45 in a state where the 45s are arranged in parallel. As each yarn 45, a multifilament yarn in which a plurality of ultrafine fibers 45a, which are monofilaments, are bundled is employed.

  As the fibers 45a, metal fibers such as polyamide fibers, carbon fibers, and stainless fibers, rayon fibers, cupra fibers, acrylic fibers, polypropylene fibers, and polyester fibers can be used. Polyamide fibers are employed for the fibers 45a in the present embodiment. Each yarn 45 has a curved portion 45b at one end in the first direction A.

  A plurality (eight in this embodiment) of the holding yarns 46 are arranged at a plurality of positions (a plurality of yarns 45 arranged in parallel in the second direction B so as to occupy most of the regions excluding both ends in the first direction A ( In this embodiment, they are arranged so as to be wound around each thread 45 at 8 positions). The plurality of holding yarns 46 extend along the second direction B, and are arranged so as to be parallel to each other at equal intervals in the first direction A.

  Each holding thread 46 is formed of a highly durable and flexible fiber. Examples of fibers that satisfy such conditions include rayon fibers, cupra fibers, polyester fibers, polyamide fibers, acrylic fibers, and polypropylene fibers. Each holding thread 46 in the present embodiment is made of polyester fiber, and includes heat-melting fiber that melts when heated partially.

  In the fluff body 41, a region between the holding yarn 46 arranged on the most end side in the first direction A and the holding yarn 46 arranged on the most other end side is an inner region UR. Therefore, in the present embodiment, a plurality (six) of holding yarns 46 are arranged in the inner region UR so as to be parallel to each other in the first direction A at equal intervals. That is, the holding yarns 46 are disposed in the inner region UR of the fluff body 41 over substantially the entire area.

  In the fluff body 41, the two regions sandwiching the inner region UR in the first direction A are a first outer region SR1 and a second outer region SR2 that constitute the outer region, respectively. In this case, the first outer region SR1 is located at the end of the fluff body 41 on the side of the curved portion 45b in the first direction A, and the second outer region SR2 is the side of the fluff body 41 on the side of the curved portion 45b in the first direction A. Located on the opposite end.

  The inner area UR is wider than the first outer area SR1 and the second outer area SR2. That is, the inner region UR is wider than the first outer region SR1 and wider than the second outer region SR2. In the present embodiment, the inner region UR is wider than the sum of the first outer region SR1 and the second outer region SR2.

  Further, in the present embodiment, in the first direction A, the width of the inner region UR is set to 12 mm, the width of the first outer region SR1 is set to 1 mm, and the width of the second outer region SR2 is set to 3 mm. Yes. That is, in this embodiment, the inner region UR occupies about 75% of the entire fluff body 41, the first outer region SR1 occupies about 6% of the entire fluff body 41, and the second outer region SR2 is the fluff. It accounts for about 19% of the entire body 41. In the second outer region SR2 of the fluff body 41, since the yarns 45 are not connected by the holding yarns 46, the fibers 45a of the yarns 45 are in an open state.

  As shown in FIG. 7, when the fluff body 41 is formed, first, a long thread 45 is knitted in a meandering manner, and a plurality of positions extending in parallel with each other at a plurality of positions on the inner side in the width direction from the curved portions 45b on both sides ( In this case, 16 pairs of holding yarns 46 are knitted. Subsequently, as shown in FIG. 8, hot pressing is performed to melt the hot melt fibers contained in the holding yarn 46, and then natural cooling is performed. Thereby, since the melted hot-melt fiber is solidified, each holding thread 46 and the long thread 45 are firmly connected.

  At this time, since the distance (pitch) in the first direction A between the holding yarns 46 is set to be narrower than the width of the holding yarns 46, when the hot-melt fiber contained in the holding yarns 46 is melted. Further, the molten synthetic resin component penetrates into the gaps between the holding yarns 46. Therefore, the entire inner region UR (see FIG. 6) is formed as an integral sheet. Thereafter, two fluff bodies 41 are formed simultaneously by cutting the center in the width direction (cut along the arrow in FIG. 8).

  As shown in FIG. 5, when the brush 32 is formed, first, the end portion of the fluff body 41 on the curved portion 45 b side in the first direction A (the first portion between the sandwiching pieces 43 a of the base material 40 (first The base end side which is one side in the direction A) is inserted. Then, at least one (three in this case) holding yarns 46 of the eight holding yarns 46 of the fluff body 41 are clamped so as to be covered by the both clamping pieces 43a. At this time, since the three holding threads 46 held by the both holding pieces 43a in the fluff body 41 form a wall facing both the holding pieces 43a, the three holding threads 46 and the both holding pieces 43a Is in a stable contact state.

  In this state, using an industrial sewing machine (not shown), the sewing thread 44 is used to squeeze both the holding pieces 43a, the three holding threads 46, and the ends of each thread 45 on the curved portion 45b side (in the first direction A). The base end side which is one side) is sewn. That is, both the sandwiching pieces 43 a (the sandwiching portions 43) are sewn (joined) to the fluff body 41 at the portion where the holding thread 46 is located by the sewing thread 44. Thereby, the brush 32 shown in FIG. 5 is obtained.

Next, the operation of the rotating brush 22 will be described.
When using a vacuum cleaner, the head 11 is first placed on the floor F as shown in FIG. When the vacuum cleaner is operated in this state, the motor 18 is driven, and the air inside the partition plate 15 passes through the air suction port 16 and is connected to the main body (not shown) of the vacuum cleaner via the connection pipe 13. Sucked in.

  At this time, the second outer side of the fluff body 41 of the brush 32 of the rotating brush 22 is rotated while the rotating brush 22 is rotated counterclockwise as viewed from the left side (in the direction indicated by the arrow in the drawing) in conjunction with the driving of the motor 18. The region SR2 is mainly slidably contacted (contacted) with the floor surface F. Then, dust such as hair and dust on the floor surface F is scraped off by the second outer region SR2 of the fluff body 41 and sucked into the main body (not shown) of the electric vacuum cleaner together with air.

  At this time, each holding thread 46 is disposed in the inner region UR of the fluff body 41 over substantially the entire area. For this reason, hair on the floor surface F (especially head hair (hair), pet hair, etc.) may be entangled with the second outer region SR2 in the fluff body 41, but is blocked by each holding thread 46. Deep entanglement with the inner region UR of the fluff 41 is suppressed.

  In this case, in particular, the inner region UR in the fluff body 41 is much wider than the second outer region SR2, so that it is difficult for hair to enter deep into the fluff body 41. Therefore, the use of the rotating brush 22 makes it difficult for hair to be entangled with the fluff body 41 (brush 32), and even if the hair is entangled with the fluff body 41 (brush 32), it can be easily removed.

According to the embodiment detailed above, the following effects are exhibited.
(1) The inner region UR of the fluff body 41 (brush 32) in the rotating brush 22 is significantly wider than each of the first outer region SR1 and the second outer region SR2. For this reason, when the rotating brush 22 is rotated and scrapes such as hair on the floor surface F are scraped off in the second outer region SR2 of the fluff body 41, such bristles enter the fluff body 41 deeply by the holding threads 46. Since this can be suppressed, it is possible to prevent the hair from being strongly entangled with the fluff body 41. Therefore, unlike conventional ones, it is possible to suppress the hairs and the like from getting tangled in the fluff body 41 without using a film member, so that the complicated work of ultrasonically welding the film member at the time of manufacture becomes unnecessary, and the number of parts may increase. Absent. Therefore, it can suppress that hair etc. get entangled with the fluff body 41 by simple structure.

  (2) The inner region UR of the fluff body 41 (brush 32) is wider than the sum of the first outer region SR1 and the second outer region SR2. For this reason, since the inner region UR is further widened, it is possible to suppress the hair and the like from entering the fluff body 41 deeply by the holding threads 46.

  (3) In the inner region UR of the fluff body 41 (brush 32), the plurality of holding threads 46 are arranged at equal intervals in the first direction A. For this reason, since the hairs and the like are effectively blocked in a balanced manner by the holding threads 46, the hairs and the like can be prevented from being strongly entangled with the inner region UR of the fluff body 41.

  (4) Each holding thread 46 of the fluff body 41 (brush 32) includes a hot-melt fiber that melts when heated. For this reason, the plurality of yarns 45 can be firmly connected by the holding yarns 46 by heating the holding yarns 46 to melt the hot melt fibers.

  (5) The fluff body 41 (brush 32) is set such that the distance (pitch) in the first direction A between the holding yarns 46 is narrower than the width of the holding yarns 46. For this reason, when the hot-melt fiber contained in the holding yarn 46 is melted, the synthetic resin component penetrates into the gaps between the holding yarns 46, so that the entire inner region UR can be formed like an integral sheet. it can.

  (6) The brush 32 covers the base material 40 that is sewn in a state in which the end portions on the curved portion 45 b side of the fluff body 41 are sandwiched by both sandwiching pieces 43 a (the sandwiching portions 43) so as to cover the three holding threads 46. I have. For this reason, it is possible to easily attach the brush 32 to the rotating body 31 that is the attached portion by slidingly inserting the engaging portions 42 of the base material 40 into the respective recessed grooves 33 from the end portions of the rotating body 31. Can do.

  (7) The brush 32 does not require a film member as in the prior art and can make hairs less likely to get entangled. Therefore, the rotational resistance ( (Sliding resistance with respect to the floor surface F) can be reduced.

(Example of change)
In addition, the said embodiment can also be changed and actualized as follows.
-As shown to Fig.9 (a), it is not necessary to arrange | position the holding thread | yarn 46 in the inner area | region UR of the fluff body 41 (brush 32). In this case, the fluff body 41 includes only two holding threads 46.

-As shown in FIG.9 (b), you may make it arrange | position only one holding thread 46 in the center part of the 1st direction A in the inner side area | region UR of the fluff body 41 (brush 32).
-As shown in FIG.9 (c), you may arrange | position the fluff body 41 (brush 32) so that the multiple (here 5 pieces) holding thread | sled 46 may adjoin sequentially in the 1st direction A. FIG. In this way, since the entire inner region UR is covered with the plurality of holding threads 46, it is possible to effectively suppress tangling of hairs and the like.

  In the brush 32, the number of holding yarns 46 to be wound around each yarn 45 is not limited to the number in the above-described embodiment and the above-described FIGS. 9A to 9C, and any number is used. Is possible. In this case, the softness of the fluff body 41 (brush 32) can be easily adjusted by appropriately changing the density of the holding yarns 46 (the number of the holding yarns 46 and the interval between the holding yarns 46).

  In the brush 32, the plurality of holding yarns 46 are not necessarily arranged at equal intervals in the first direction A. That is, the plurality of intervals between the plurality of holding yarns 46 may be different, or the adjacent holding yarns 46 may be brought into contact with each other to eliminate the interval between the holding yarns 46.

In the brush 32, if the inner area UR is wider than the first outer area SR1 and the second outer area SR2, the width of the inner area UR may be arbitrarily changed.
In the brush 32, the inner region UR does not necessarily need to be wider than the sum of the first outer region SR1 and the second outer region SR2.

  In the brush 32, the base material 40 may be omitted. In this case, since the brush 32 is constituted by the fluff body 41, the fluff body 41 is directly attached to each concave groove 33 of the rotating body 31.

-Each holding thread 46 does not necessarily need to contain a hot-melt fiber.
-In the brush 32, the fluff body 41 and the base material 40 do not necessarily need to be joined by sewing, and may be joined by adhesion with a double-sided adhesive tape or adhesion with an adhesive, for example.

In the brush 32, the fluff body 41 and the base material 40 may be sewn with a plurality of sewing threads 44.
The brush 32 may be used for purposes such as cleaning a filter such as an air conditioner or a ventilation fan, or scraping off toner adhering to a photosensitive drum in the image forming apparatus. In this case, the brush 32 is not necessarily rotated and used, and may be used by linearly moving in a state where the brush 32 is in sliding contact with the object.

  DESCRIPTION OF SYMBOLS 22 ... Rotating brush, 31 ... Rotating body, 32 ... Brush, 40 ... Base material, 41 ... Fluff body, 45 ... Yarn, 46 ... Retaining thread, F ... Floor surface as an example of a contacted part, SR1 ... Outer area | region First outer region constituting SR2, second outer region constituting outer region, UR ... inner region, A ... first direction, B ... second direction.

Claims (6)

A plurality of yarns and a plurality of holding yarns that connect the plurality of yarns in a state in which the plurality of yarns are arranged in parallel in a second direction that is a direction orthogonal to the first direction in which the plurality of yarns extend. With fluff having
In the fluff body, an inner region that is a region between the holding yarn disposed on the most end side in the first direction and the holding yarn disposed on the other end side is the inner side in the first direction. A brush characterized by being wider than each of the two outer regions across the region.   The brush according to claim 1, wherein the inner region is wider than a sum of the two outer regions.   The brush according to claim 1 or 2, wherein a plurality of the holding yarns are arranged in the inner region at equal intervals in the first direction.   The brush according to any one of claims 1 to 3, wherein the holding yarn includes a hot-melt fiber that is melted by heating.   The base material joined in the state which clamped the one side of the said 1st direction in the said fluff body so that at least one said holding thread | yarn might be covered was provided, The any one of Claims 1-4 characterized by the above-mentioned. The brush according to one item. A rotating brush comprising a rotating body and a brush attached to the rotating body, and used to contact the brush with a contacted part while rotating the rotating body.
The said brush is comprised by the brush as described in any one of Claims 1-5, The rotary brush characterized by the above-mentioned.