JP2019063417A - Brush structure and coil brush - Google Patents

Abstract

To provide a brush structure facilitating replacement work of a channel brush, capable of safely and firmly supporting the channel brush, and hardly causing unevenness in each kind of brush processes.SOLUTION: A brush structure including a core material 11, and a coil brush 21 in which a wound channel brush 22 is detachably mounted on an outer peripheral surface 12 of the core material 11 is such that: a groove part 15 extending in an axial direction is provided in the outer peripheral surface 12 of the core material 11; the coil brush 21 is provided with a projecting part 25 formed by traversing the wound channel brush 22 and engageable with the groove part 15, and an inner peripheral surface 27 abutted on the outer peripheral surface 12 of the core material 11; the inner peripheral surface 27 comprises a bottom of a channel in the channel brush 22; and the bottom is abutted on the outer peripheral surface 12 of the core material 11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a brush structure in which a coil brush wound with a channel brush is detachably attached to a core material, and a coil brush suitable for the brush structure.

  Conventionally, a roll brush configured by winding a channel brush around a rotationally driven roll body or the like is widely used in various fields. In such a roll brush, the channel brush is fixed by welding the bottom of the channel to the outer peripheral surface of the roll body while winding the channel brush.

  In this welded structure, when replacing the deteriorated channel brush, the entire roll brush is transported to the work place, the welded deteriorated channel brush is removed from the roll body, and the weld is removed smoothly, and then It was necessary to weld while winding a new channel brush. Therefore, replacement work of the deteriorated channel brush has been time-consuming.

  On the other hand, Patent Document 1 below proposes a roll brush that fixes the channel brush to the roll body without welding. In this roll brush, when fixing a coil brush formed by closely contacting and spirally winding a channel brush to the roll body, a braking flange having an engagement portion with the end face of the channel is disposed at an axial end of the coil brush. It is configured to be fixed to the roll body.

JP 2001-346629 A

However, in the case of the conventional welding structure, it takes time to replace the channel brush, and particularly when the use place of the roll brush and the exchange place of the channel brush are separated, it takes a lot of time. The
In addition, in the case of the brush structure in which the channel brush is fixed without welding as in Patent Document 1, the middle portion is not stably supported and fixed, so the channel brush is likely to be bent or distorted during use. For example, there is a problem that unevenness is likely to occur in brush processing such as polishing and cleaning.

  Therefore, according to the present invention, a brush structure that facilitates replacement work of the channel brush, can stably support the channel brush stably and does not easily cause unevenness in various brush treatments, and a coil brush suitable for the brush structure, Intended to provide.

  The brush structure of the present invention for achieving the above object comprises a core and a coil brush on which a wound channel brush is detachably mounted on the outer peripheral surface of the core, and the outer peripheral surface of the core is The coil brush has a groove extending in the axial direction, and the coil brush is formed across the wound channel brush and has a ridge that can be fitted with the groove, and an inner circumferential surface that contacts the outer circumferential surface of the core material. And the inner peripheral surface is the bottom of the channel in the channel brush, and the bottom is in contact with the outer peripheral surface of the core material.

  In this brush structure, it is preferable that end plates for supporting the end of the coil brush be attached to both axial ends of the core material. Preferably, the coil brush has a disk shape with an axial thickness smaller than the diameter. Furthermore, the core material is preferably fixed to a rotary drive that is driven to rotate about an axis.

  The coil brush of the present invention for achieving the above object is axially disposed on an inner circumferential surface comprising a channel brush wound a plurality of times with the bottom of the channel inside and a bottom of the channel wound a plurality of times, And a plurality of reinforcing ridges joined to a plurality of crossing bottoms.

  According to the brush structure of the present invention, since the coil brush in which the channel brush is wound is detachably mounted on the outer peripheral surface of the core, it is possible to easily remove or mount the channel brush from the core. Since the outer peripheral surface of the core material is provided with a groove extending in the axial direction, and the coil brush is provided with a ridge that can be fitted into the groove and an inner peripheral surface that contacts the outer peripheral surface, the channel brush Even if it is not welded to the material, the coil brush can be stably supported on the outer peripheral surface of the core material.

  In particular, since the inner peripheral surface of the coil brush is the bottom of the channel X in the channel brush and the bottoms of the channels constituting the inner peripheral surface are in direct contact with the outer peripheral surface of the core, each channel is the outer periphery of the core The surface can be firmly supported, and the channel brush can be prevented from being bent or distorted during use.

  Therefore, according to the present invention, it is possible to easily replace the channel brush, to stably and firmly support the channel brush, and to provide a brush structure in which unevenness in various brush processes is less likely to occur.

According to the coil brush of the present invention, the reinforcing ridges are arranged in the axial direction on the inner circumferential surface of the bottom of the channel in the channel brush wound a plurality of times, and the plurality of channels traversed by the ridges The bottom of the is joined to the ridge.
Therefore, between each part of the channel in the channel brush wound several times can be connected with each other by the ridges, and the whole coil brush is strongly integrated. As a result, the rigidity of the channel in the channel brush wound a plurality of times can be improved, the channel can be prevented from being elastically deformed easily, and the shape of the channel brush can be stably maintained in use.
In addition, when the channel brush wound a plurality of times is integrated by the ridges, it is easy to handle when attaching and detaching the coil brush to the core material, and furthermore, it is easy to stably attach to the core using the ridges. Since it can do, replacement work etc. of a coil brush can be done easily.

It is a front view showing a brush structure concerning an embodiment of the present invention. It is an exploded side view of a brush structure concerning an embodiment of the present invention. The core material of the brush structure which concerns on embodiment of this invention is shown, (a) is a front view, (b) is sectional drawing. The coil brush of the brush structure which concerns on embodiment of this invention is shown, (a) is a front view, (b) is sectional drawing of the channel brush which comprises a coil brush. It is a fragmentary sectional view showing the example which equipped the rotary drive with the brush structure concerning the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the brush structure of the present embodiment, as shown in FIGS. 1 and 2, the core 11, the coil brush 21 detachably mounted on the outer peripheral surface 12 of the core 11, and both axial ends of the core 11 And an end plate 31 mounted on the

  As shown in FIGS. 2 and 3, the core material 11 is formed of metal or the like in a thick, substantially ring shape. A through hole 13 penetrating in the axial direction is provided at a central portion of the core member 11 as a fixing portion to which a rotation driving body or the like is fixed. In addition, fixing portions 14 for fixing the end plate 31 are provided on both side surfaces of the core material 11. An outer peripheral surface 12 for supporting the coil brush 21 is provided on the outer periphery of the core material 11. The outer peripheral surface 12 may be a surface inclined in the axial direction, but here, it is a surface in which a constant circular cross section is continuous in the axial direction.

  Grooves 15 extending in the axial direction are provided at a plurality of circumferential positions separated from each other on the outer circumferential surface 12. The groove portion 15 is provided continuously in parallel with the axial direction from at least one end portion of the core material 11. Each groove 15 has a constant cross-sectional shape and is continuous in the axial direction, and has a width and a depth corresponding to the ridges 25 of the coil brush 21 described later.

The coil brush 21 is formed by winding a long channel brush 22 a plurality of times as shown in FIG. 2 and FIGS. 4 (a) and 4 (b). The coil brush 21 has a disk shape. Here, the disk shape is, for example, a shape in which the thickness in the axial direction is smaller than the diameter of the outer periphery formed by the tip of the hair 26 of the coil brush 21. For example, the number of turns of the channel brush 22 may be 10 or less. In this embodiment, it is formed by winding 5 times or less in a spiral.
In the present embodiment, the thickness in the axial direction of the core material 11 is also made equal to the thickness in the axial direction of the coil brush 21, and the disk shape is exhibited even when the coil brush 21 is mounted on the core material 11.

  As shown in FIG. 4B, in the channel brush 22, a channel 23 having a substantially U-shaped cross section having a bottom 23a and side portions 23b on both sides of the bottom 23a is continuous in the longitudinal direction. The bristles 26 are held and disposed so as to protrude outward from the opening opposite to the bottom 23a. The hair material 26 can be appropriately selected according to the application, and it is possible to use a wire, cloth, sponge or the like used for various brushes.

  The coil brush 21 according to the present embodiment is formed by winding the channel brush 22 with a hollow portion having a diameter corresponding to the outer peripheral surface 12 of the core member 11 as shown in FIGS. 2 and 4A. . Specifically, the channel 23 is wound so that the bottom 23a of the channel 23 faces inward and the pair of side portions 23b face outward. The bottoms 23 a of the wound channels 23 are disposed substantially cylindrically adjacent to each other in the axial direction to form the inner circumferential surface 27 of the coil brush 21.

The inner peripheral surface 27 has a shape corresponding to the outer peripheral surface 12 of the core 11, is axially insertable into and removable from the outer peripheral surface 12 of the core 11, and in the inserted state, the inner peripheral The surface 27 has a shape that can contact the outer peripheral surface 12 of the core material 11 substantially entirely.
Further, on the inner circumferential surface 27, there are provided convex streaks 25 which can be protruded inward in a plurality of places in the circumferential direction and can be fitted with the grooves 15 of the core material 11. The ridges 25 are provided along the axial direction so as to cross the bottom 23 a of the wound channel brush 22. The ridges 25 are respectively fitted in the grooves 15 provided on the outer peripheral surface 12 of the core 11, whereby the coil brush 21 is supported by the core 11 in the circumferential direction.

  The ridges 25 are formed by flat bars having a substantially rectangular cross section. The ridges 25 made of flat bars have a length corresponding to the axial thickness of the coil brush 21, and have a width and a thickness corresponding to the grooves of the core 11. In the present embodiment, the ridges 25 are also provided to reinforce the coil brush 23. Specifically, in a state where the ridges 25 are arranged in the axial direction on the inner circumferential surface 27 consisting of the bottom 23 a of the channel 23 wound a plurality of times, the ridge 25 crosses at a portion crossing the wound channel brush 22. The plurality of bottoms 23a, preferably the bottoms 23a of all the channels 23, are joined by welding.

Such a coil brush 21 can be attached and detached by aligning the axial line with the core material 11 and relatively moving it in the axial direction. At the time of mounting, the respective ridges 25 are inserted from the end side into the respective grooves 15 of the core member 11 and fitted, and the inner circumferential surface 27 between the respective ridges 25 is, that is, between the respective ridges 25 Bottom portions 23a of the channels 23 can be mounted in contact with the outer peripheral surface 12 of the core material 11, respectively.
In the present embodiment, in a state where the coil brush 21 is mounted on the core member 11, substantially the entire length of the bottom 23 a of the channel 23 disposed between the ridges 25 is directly wound on each of the wound peripheries. The outer circumferential surface 12 of the

  The end plate 31 is attached to the ends on both sides in the axial direction of the core 11 and supports the respective ends of the coil brush 21. The end plate 31 has a through hole 33 corresponding to the through hole 13 of the core 11 provided at the center, a fixing portion 34 of the core 11 provided on the outer peripheral side of the through hole 33, and a fixing portion A shaft which is provided on the outer peripheral side of the core member 34 so as to project outward from the outer peripheral surface 12 of the core 11 and axially abuts the channel 23 of the coil brush 21 mounted on the outer peripheral surface 12 And a direction support portion 32.

By mounting the end plate 31 on both ends of the core material 11 to which the coil brush 21 is mounted, the coil brush 21 is supported in the axial direction, and axial movement is reliably prevented.
Further, on the outer peripheral side of each end plate 31, the middle and middle portions of the bristles 26 of the coil brush 21 can be held from both sides in the axial direction.
The channel 23 may be cut in a direction perpendicular to the longitudinal direction at the winding end of the channel 23 of the coil brush 21, that is, at the portion contacting the end plate 31 of the channel 23. It may be cut obliquely along the end plate 31 with respect to the direction.

In such a brush structure, for example, as shown in FIG. 5, a rotary drive 41 driven to rotate about an axis is fixed by penetrating the through hole 13 of the core material 11 and rotationally driven by the rotary drive 41. It can be used.
The number of coil brushes 21 fixed to the rotational drive body 41 can be appropriately set according to the application, the shape of the rotational drive body 41, and the like. For example, one set of brush structures as described above may be fixed and used as a disc brush. As shown in FIG. 5, a plurality of sets of brush structures as described above may be coaxially fixed adjacent to each other and used as a roll brush.
These applications are not limited at all, and may be, for example, brush processing such as polishing and washing.

  According to the brush structure of the present embodiment as described above, since the coil brush 21 having the channel brush 22 wound thereon is detachably mounted on the outer peripheral surface 12 of the core member 11, the channel brush 22 is removed from the core member 11. It can be easily removed and installed. Therefore, when the channel brush 22 is deteriorated and replaced with a new channel brush 22 as in a roll brush having a conventional welding structure, it is not necessary to take time and effort to remove or weld a welded portion. For example, by detaching the end plate 31 and moving the coil brush 21 composed of the channel brush 22 in the axial direction, the coil brush 21 can be removed from the core material 11 or a new coil brush 21 can be mounted. Therefore, the channel brush 22 can be easily replaced.

  Furthermore, in the brush structure of the present embodiment, the outer peripheral surface 12 of the core member 11 is provided with the groove 15 extending in the axial direction, and the coil brush 21 abuts against the ridge 25 capable of fitting to the groove 15 and the outer peripheral surface 12 Since the inner circumferential surface 27 is provided, the coil brush 21 can be stably supported on the outer circumferential surface 12 of the core 11 even if the channel brush 22 is not welded to the core 11.

In particular, the inner peripheral surface 27 of the coil brush 21 comprises the bottom 23a of the channel 23 in the channel brush 22, and the bottom 23a of the channel 23 constituting the inner peripheral surface 27 is in direct contact with the outer peripheral surface 12 of the core 11 Therefore, each channel 23 can be firmly supported by the outer peripheral surface 12 of the core member 11, and the channel brush 22 can be prevented from being bent or distorted during use.
Therefore, the replacement operation of the channel brush 22 is easy, and the channel brush 22 can be stably and firmly supported, and it is possible to realize a brush structure in which unevenness in various brush processes is less likely to occur.

  Further, in the brush structure of this embodiment, since the end plate 31 holding the end of the coil brush 21 is attached to both axial ends of the core 11, the groove extending in the axial direction of the core 11 It is possible to reliably support the coil brush 21 supported in the circumferential direction by fitting the ridges 25 to the axial direction.

  Further, in the brush structure of this embodiment, since the core material 11 is fixed to the rotation driving body 41 which is rotationally driven about the axis, the coil brush 21 can be rotationally driven. At that time, since the ridges 25 provided on the inner peripheral surface 27 of the coil brush 21 are fitted in the grooves 15 extending in the axial direction of the core member 11, the coil brush 21 is stably driven to rotate. It can be brushed.

  In the brush structure of this embodiment, the coil brush 21 has a disk shape. Therefore, as shown in FIG. 5, a roll brush having a long axial length can be configured by arranging a plurality of coil brushes 21 adjacent to each other in the axial direction and fixing them to the rotary drive body 41. When a roll brush having a long length in the axial direction is configured as described above, no gap is formed between the coil brushes 21 adjacent in the axial direction. Therefore, an arbitrary length continued in the axial direction according to the number of coil brushes 21 The roll brush can be easily configured.

  On the other hand, by fixing a single coil brush 21 to the rotary drive 41, a disk brush with a short axial length can also be configured. When the disk brush having such a short axial length is configured, since the bottom 23a of the channel 23 is in direct contact with and supported by the outer peripheral surface 12 of the core 11 even if the width of the coil brush 21 is narrow. When an axial force is applied during use, it is possible to prevent the deformation of the channel brush 22 from being deformed in the falling direction.

  Therefore, the brush structure of the present embodiment can be commonly used for various brushes having different lengths from the disc brush to the roll brush, and a brush structure capable of improving the degree of freedom of application can be realized. It is.

Further, according to the coil brush 21 of the present embodiment, the reinforcing ridges 25 are arranged in the axial direction on the inner circumferential surface 27 formed of the bottom 23 a of the channel 23 in the channel brush 22 wound a plurality of times. Bottoms 23 a of a plurality of channels 23 traversed by the strip 25 are joined to the ridge 25.
Therefore, the portions of the channel 23 in the channel brush 22 wound a plurality of times can be connected to each other by the ridges 25, and the entire coil brush 21 can be firmly integrated. As a result, the rigidity of the channel 23 in the channel brush 22 wound a plurality of times can be improved, the channel 23 can be prevented from being elastically deformed easily, and the shape of the channel brush 22 can be stably maintained during use.
In addition, when the channel brush 22 wound a plurality of times is integrated by the ridges 25, the coil brush 21 can be easily handled when attaching and detaching the coil brush 21 to the core 11. Further, using the ridges 25 as the core 21 Since the mounting can be stably performed, the replacement work of the coil brush 21 can be easily performed.

In addition, the brush structure of this invention is not limited to the said embodiment, It can change suitably in the range of the invention.
For example, in the above embodiment, one coil brush 21 is attached to one core material 11, and the axial thickness of the core material 11 and the axial thickness of the coil brush 21 correspond to each other. Although the example has a short disk shape, these configurations can be changed. For example, a plurality of coil brushes 21 may be attached to a single core material 11. Moreover, the thickness in the axial direction may be thick.

Although the said embodiment demonstrated the example which provided the through-hole 13 in order to fix the core material 11 to the rotation drive body 41, the means for fixing the rotation drive body 41 is not limited at all. It is possible to use various fixing means such as projections, screws and the like.
In the above embodiment, the long channel brush 22 is wound a plurality of times to form the coil brush 21. However, the channel brush 22 may be wound once to form a coil brush.

Reference Signs List 11 core material 12 outer peripheral surface 13 through hole 14 fixed portion 15 groove 21 coil brush 22 channel brush 23 channel 23 a bottom 23 b side portion 25 convex portion 26 bristle 27 inner peripheral surface 31 end plate 32 axial support portion 33 through hole 34 fixed part 41 rotary drive

The brush structure of the present invention for solving the above problems comprises: a core material; and a coil brush on which a wound channel brush is detachably mounted on the outer peripheral surface of the core material. a groove portion extending in the axial direction is formed, the coil brush, a groove capable of being fitted convex portions across the wound channel brush, an inner peripheral surface which abuts on the outer peripheral surface of the core material, is formed And the inner circumferential surface comprises the bottom of the channel in the channel brush, and the ridge is joined to the plurality of bottoms so as to axially cross the inner circumferential surface consisting of the bottom of the channel wound in a plurality of turns. and connecting the plurality of bottom, said bottom with convex portion is fitted into the groove portion is made in contact with the outer peripheral surface of each of the core material.

The coil brush of the present invention, which solves the above-mentioned problems, axially crosses the inner circumferential surface consisting of the channel brush wound a plurality of times with the bottom of the channel inside and the bottom of the channel wound a plurality of times. And a plurality of reinforcement ridges joined to the bottoms to connect between the plurality of bottoms .

The brush structure of the present invention for solving the above problems comprises: a core material; and a coil brush on which a wound channel brush is detachably mounted on the outer peripheral surface of the core material. comprising a groove extending in the axial direction, the coil brush, inner peripheral surface is formed across the wound channel brush abuts directly fittable ridges in the groove, the outer peripheral surface of the core When, with the inner peripheral surface of the coil brush is made from the bottom of the channel which is wound a plurality of turns in the channel brush, convex portions of the coil brush, the inner peripheral surface consisting of the bottom of the multiple wound channels so as to cross the axial direction is joined to the bottom of the plurality of channels are connected between the plurality of bottom, said bottom of said channel, each core with convex portions of the coil brush is fitted in the groove of the core member It is configured in contact with the outer peripheral surface of the wood

Claims (5)

A core material, and a coil brush on which a wound channel brush is detachably mounted on an outer peripheral surface of the core material,
The outer peripheral surface of the core material is provided with a groove extending in the axial direction,
The coil brush includes a ridge formed so as to cross the wound channel brush and capable of being fitted to the groove, and an inner circumferential surface abutting on the outer circumferential surface of the core material,
The brush structure, wherein the inner circumferential surface is a bottom of a channel in the channel brush, and the bottom is in contact with an outer circumferential surface of the core, respectively.   The brush structure according to claim 1, wherein an end plate supporting an end of the coil brush is attached to both axial ends of the core material.   The brush structure according to claim 1, wherein the coil brush has a disk shape having an axial thickness smaller than a diameter.   The brush structure according to any one of claims 1 to 3, wherein the core material is fixed to a rotational driving body that is rotationally driven about the axis. A channel brush wound several times with the bottom of the channel inside,
A coil brush comprising a plurality of reinforcing ridges axially disposed on an inner circumferential surface of a bottom of the channel wound a plurality of turns and joined to the plurality of crossing bottoms.

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