JP3217237U - Rotating brush and mower - Google Patents

Abstract

The present invention provides a rotating brush capable of cutting weeds that grow on uneven portions of a work surface. A rotating brush 1 of the present invention is connected to a mower having a rotating shaft that rotates by operation of a drive source. The rotating brush 1 includes a disc 6 on which a protrusion 13A is formed, an annular cover member 7A on which a through hole 30A and a notch 31A are formed, and brush bristles 8A. In a state where the cover member 7A is fixed to the peripheral edge of the disk 6, the protrusion 13A is disposed at a position facing the through hole 30A vertically, and the notch 31A is disposed outside the protrusion 13A. The brush bristles 8A are inserted into the space between the cover member 7A and the disc 6 through the through hole 30A in a state of being bent into two forks, and the protrusions 13A are inserted into the inner sides of the two forks. The bent portion is hooked on the protrusion 13A. The two limbs 81A, 81A of the brush hair are extended outward from the notch 31A of the cover member 7A. [Selection] Figure 3

Description

  The present invention relates to a rotary brush connected to a mowing machine having a rotating shaft that rotates by the operation of a drive source, and to a mower equipped with the rotating brush.

  For example, a disc mower is widely used, and this disc mower generally includes a disk-shaped grindstone and a drive source such as a motor attached to the grindstone via a rotating shaft (for example, a patent). Reference 1). This disc mower is configured so that when the power switch provided on the outer surface is turned on, the drive source is driven to rotate the grindstone, and the grindstone thus rotated comes into contact with the weed grown on the work surface. By doing so, weeds are cut.

JP 2010-269396 A

  However, in the disc mower as described above, when there is an uneven portion on the work surface, there is a problem that it is difficult to cut the weeds that grow on the uneven portion because the grindstone cannot enter the uneven portion. there were.

  Then, this invention makes it a subject to provide the rotary brush which can cut the weed which grew on the uneven | corrugated | grooved part of a to-be-worked surface, and the mowing machine provided with the said rotary brush.

  To achieve the above object, the present invention includes the subject matter described in the following section.

Item 1. A rotating brush connected to a mower having a rotating shaft that rotates by actuation of a drive source,
With a disc,
An annular cover member;
With brush bristles,
The disc has a connecting hole for connecting to the rotary shaft of the mower at the center, and a protrusion extending in the vertical direction at the periphery.
The cover member has a C-shaped cross section, and is fixed to a peripheral portion of the disc so that the protrusion is located inside the C-shape.
A through hole is formed at a predetermined position on the inner peripheral side of the cover member, and a notch is formed on the outer peripheral edge of the cover member at a position outside the through hole in plan view.
In a state where the cover member is fixed to the peripheral edge of the disk, the protrusion is disposed at a position facing the through hole vertically or at a position facing the through hole vertically. The notch is arranged outside the protrusion,
The brush bristles are inserted into the space between the cover member and the disc from the through hole in a state of being bent into two forks, and the protrusions are inserted into the two forks. The bent part is hooked on the protrusion,
A rotating brush in which two limbs of the fork of the brush hair are extended outward from the cutout of the cover member.

  Item 2. Item 2. The rotating brush according to Item 1, wherein the brush bristles are formed of a resin mixed with aluminum powder.

  Item 3. Item 3. The rotating brush according to Item 2, wherein the cross-section of the bristle exhibits a triangle or a quadrangle.

  Item 4. The rotating brush according to claim 3, wherein the corners of the triangle or the quadrangle are spirally extended in the axial direction of the bristle by twisting the bristle.

Item 5. The cover member includes an inner annular wall that constitutes an inner peripheral edge, an outer annular wall that constitutes an outer peripheral edge, and an opposing annular wall that connects the tip of the inner annular wall and the tip of the outer annular wall. And
In a state where the cover member is fixed to the peripheral edge of the disc, the inner annular wall and the outer annular wall extend perpendicular to the disc, and the opposed annular wall faces the disc, The protrusion is located in a space between the opposed annular wall and the disc;
The through hole of the cover member is formed on the inner peripheral side of the opposed annular wall,
Item 5. The rotating brush according to any one of Items 1 to 4, wherein the notch of the cover member is formed in the outer annular wall.

  Item 6. In a state where the cover member is fixed to the peripheral edge of the disk, the outer peripheral edge of the disk exposed from the notch in a side view is located on the inner side of the outer peripheral edge of the cover member in a plan view. Item 6. A rotating brush according to any one of Items 1 to 5.

Item 7. As the protrusion,
A first protrusion extending upward from the upper surface of the peripheral edge of the disc;
A second protrusion extending downward from the lower surface of the peripheral edge of the disc is formed,
As the cover member,
A first cover member that has a C-shaped cross section and is fixed to the upper surface of the peripheral edge of the disc so that the first protrusion is located inside the C-shape;
A second cover member that has a C-shaped cross section and is fixed to the lower surface of the peripheral edge of the disc so that the second protrusion is located inside the C-shape;
A first through hole is formed at a predetermined position on the inner peripheral side of the first cover member, and the outer peripheral edge of the first cover member is positioned outside the first through hole in plan view. A first notch is formed,
A second through hole is formed at a predetermined position on the inner peripheral side of the second cover member, and the outer peripheral edge of the second cover member is positioned outside the second through hole in plan view. A second notch is formed,
In a state where the first cover member is fixed to the upper surface of the peripheral edge of the disk, the first cover member is positioned at a position facing the first through hole vertically or at a position facing the first through hole vertically. The first protrusion is disposed outside, the first notch is disposed outside the first protrusion,
In a state where the second cover member is fixed to the lower surface of the peripheral edge of the disc, the second cover member is positioned at a position facing the second through hole vertically or at a position facing the second through hole vertically. The second protrusion is disposed outside, the second notch is disposed outside the second protrusion,
As the brush hair,
In a state of being bent into two forks, the first projection is inserted into the inner side of the two forks while being inserted into the space between the first cover member and the disc from the first through hole. A first brush hair having a bifurcated bent portion hooked on the first protrusion;
In a state of being bent into two forks, the second protrusion is inserted into the space between the second cover member and the disk through the second through hole and the second protrusion is inserted into the forks. A second bristle with a bifurcated bent portion hooked on the second protrusion,
The bifurcated limbs of the first brush hair extend outward from the first notch,
Item 7. The rotating brush according to any one of Items 1 to 6, wherein the forked limbs of the second brush hair extend outward from the second cutout.

Item 8. A mowing machine comprising the rotating brush according to any one of Items 1 to 7,
Having a rotating shaft that rotates upon actuation of the drive source;
A mowing machine in which the rotating brush is connected to the rotating shaft.

  According to the present invention, even if the work surface has an uneven portion, weeds grown on the uneven portion of the work surface can be cut by inserting the bristles into the corners of the uneven portion.

Furthermore, according to the rotating brush of this embodiment, weeds can be reliably cut for the following reasons (1) and (2).
(1) Both limbs of the brush hairs that extend from the cutout of the cover member continuously contact the same part of the weeds.
(2) By appropriately setting the notch dimensions of the cover member, the limbs of the brush hair can be brought into close contact with the edge of the notch. For this reason, since the vertical and horizontal movements of the brush hair can be regulated, the position of the brush hair does not shift due to contact with the weeds.

It is a perspective view which shows the mower in which the rotating brush which concerns on embodiment of this invention is used. It is the schematic of a mower. It is a perspective view which shows the rotating brush which concerns on embodiment of this invention. It is a perspective view which shows the state which decomposed | disassembled the rotating brush. (A) is a top view of a disk, (b) is a bottom view of a disk. (A) is a perspective view which shows the outer surface of a 1st and 2nd cover member, (b) is a perspective view which shows the inner surface of a 1st and 2nd cover member. (A) is the sectional view on the AA line of FIG. 3, (b) is the sectional view on the BB line of FIG. It is sectional drawing which expands and shows a part of Fig.7 (a). It is a perspective view which shows the state which removed the 1st cover member from the rotating brush. It is a perspective view which expands and shows the tip vicinity part of the limb part of the 1st brush hair, It is a perspective view which expands and shows the tip vicinity part of the limb part of the 2nd brush hair.

  Hereinafter, a rotating brush according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a mowing machine 5 in which a rotating brush 1 according to an embodiment of the present invention is used. FIG. 2 is a schematic view of the mower 5.

  As shown in FIGS. 1 and 2, the rotary brush 1 according to this embodiment is connected to a mower 5. The mowing machine 5 has rotating shafts 3A and 3B that are rotated by the operation of the drive source 2, and the rotating brush 1 rotates as the rotating shafts 3A and 3B rotate. As the rotary brush 1 rotates, the bristles 8A and 8B attached to the rotary brush 1 move in the circumferential direction of the rotary brush 1, and the moving brush bristles 8A and 8B are applied to the weeds on the work surface. You can mow the weeds.

  FIG. 3 is a perspective view showing the rotating brush 1 according to the embodiment of the present invention. FIG. 4 is a perspective view showing a state where the rotary brush 1 is disassembled.

  As shown in FIGS. 3 and 4, the rotating brush 1 includes a disc 6, a first cover member 7 </ b> A, a second cover member 7 </ b> B, three first brush hairs 8 </ b> A, and three pieces. 2nd brush hair 8B is provided.

  FIG. 5A is a top view of the disk 6 and FIG. 5B is a bottom view of the disk 6. The disc 6 is formed from, for example, iron, stainless steel, aluminum, or reinforced plastic, and the outer diameter of the disc 6 is, for example, 13 to 17 cm. As shown in FIGS. 3 to 5, a connecting hole 11 for connecting to the rotary shaft 3 </ b> B of the mower 5 is formed in the center of the disc 6. A hole 12 for reducing the weight of the disc 6 is formed in a portion other than the central portion of the disc 6.

  In addition, three first protrusions 13A and three second protrusions 13B extending in the up-down direction are formed on the peripheral edge of the disc 6. The three first protrusions 13 </ b> A extend upward from the upper surface of the peripheral edge of the disk 6, and the interval between the protrusions 13 </ b> A in the circumferential direction of the disk 6 is constant. The three second protrusions 13 </ b> B extend downward from the lower surface of the peripheral edge of the disk 6, and the interval between the second protrusions 13 </ b> B in the circumferential direction of the disk 6 is constant.

  The first cover member 7A and the second cover member 7B have substantially the same structure. For this reason, FIG. 6 collectively shows the structure of the first cover member 7A and the second cover member 7B. Fig.6 (a) is a perspective view which shows the outer surface of cover member 7A, 7B. FIG. 6B is a perspective view showing the inner surfaces of the cover members 7A and 7B. 7A is a cross-sectional view taken along line AA in FIG. 3, and FIG. 7B is a cross-sectional view taken along line BB in FIG. FIG. 8 is an enlarged cross-sectional view showing a part of FIG.

  As shown in FIGS. 3, 4, and 6, the cover members 7 </ b> A and 7 </ b> B have an annular shape, and the outer diameters of the cover members 7 </ b> A and 7 </ b> B substantially coincide with the outer diameter of the disk 6. The material of the cover members 7A and 7B is, for example, iron, stainless steel, aluminum, reinforced plastic, or the like, similar to the material of the disc 6.

  As shown in FIGS. 7 and 8, the cover members 7A and 7B have a C-shaped cross section. The first cover member 7A is fixed to the upper surface of the peripheral edge of the disk 6 so that the first protrusion 13A is positioned inside the C-shape. The 2nd cover member 7B is fixed to the lower surface of the peripheral part of the disc 6 so that the 2nd protrusion 13B may be located in the inside of C character.

  More specifically, as shown in FIGS. 4, 6, 7, and 8, the cover members 7 </ b> A and 7 </ b> B are respectively composed of an inner annular wall 20 that forms an inner peripheral edge and an outer annular wall that forms an outer peripheral edge. 21 and an opposing annular wall 22 that connects the distal end of the inner annular wall 20 and the distal end of the outer annular wall 21. When the cover members 7A and 7B are fixed to the upper and lower surfaces of the peripheral edge of the disc 6, the inner annular wall 20 and the outer annular wall 21 of the cover members 7A and 7B are circular as shown in FIGS. It extends substantially perpendicular to the plate 6, and the opposed annular wall 22 of the cover member 7 faces the disc 6 with a space in the vertical direction. The first protrusion 13A is disposed in the space between the opposed annular wall 22 of the first cover member 7A and the disk 6. Further, the second protrusion 13B is disposed in a space between the opposed annular wall 22 of the second cover member 7B and the disk 6.

  The cover members 7A and 7B are fixed to the disk 6 using bolts T (FIG. 3) and nuts (not shown). The bolt T sequentially passes through the first cover member 7A, the disk 6 and the second cover member 7B, and a nut is fastened to the tip of the bolt T extending from the second cover member 7B. The As shown in FIGS. 4 and 6B, bosses 23 and ribs 24 are formed on the inner surfaces of the opposed annular walls 22 of the cover members 7A and 7B. These bosses 23 and ribs 24 are formed between the inner annular wall 20 and the outer annular wall 21, and the boss 23 is formed with a through hole 23 a through which the bolt T is passed.

  As shown in FIG. 3 and FIG. 4, a first through hole 30A is formed at a predetermined position on the inner peripheral side of the first cover member 7A. A first notch 31A is formed on the outer peripheral edge of the first cover member 7A at a position outside the first through hole 30A. More specifically, three first through holes 30A are formed at equal intervals (equal intervals in the circumferential direction of the cover member 7A) on the inner peripheral side of the opposed annular wall 22 of the first cover member 7A. First cutouts 31A are formed at the positions of the outer annular wall 21 that is outside the first through hole 30A. In the state where the first cover member 7A is fixed to the upper surface of the peripheral edge of the disk 6, the first cover member 7A is positioned at a position facing the first through hole 30A vertically as shown in FIG. 7A and FIG. One protrusion 13A is disposed, and the first notch 31A is disposed outside the first protrusion 13A. Note that, from the viewpoint of facilitating the attachment of the first brush bristles 8A to the rotating brush 1, the first protrusions 13A may be disposed on the outer side of the first through hole 30A and the position facing the top and bottom.

  As shown in FIG. 4, a second through hole 30B is formed at a predetermined position on the inner peripheral side of the second cover member 7B. On the outer peripheral edge of the second cover member 7B, a second notch 31B is formed at a position on the outer side of the second through hole 30B. More specifically, in the second cover member 7B, three second through holes 30B are formed at equal intervals on the inner peripheral side of the opposed annular wall 22 (equal intervals in the circumferential direction of the cover member 7B). A second notch 31B is formed at a position of the outer annular wall 21 that is outside the second through hole 30B. In the state where the second cover member 7B is fixed to the lower surface of the peripheral edge of the disc 6, as shown in FIG. 7A and FIG. 8, the outer side of the position opposite to the second through-hole 30B. In addition, a second protrusion 13B is arranged. In addition, the second notch 13B is disposed outside the second protrusion 13B. The second protrusion 13B may be disposed at a position facing the second through hole 30B in the vertical direction.

  FIG. 9 is a perspective view showing a state in which the first cover member 7A is removed from the disc 6 (FIG. 9 is shown for convenience of explanation, and when the rotary brush 1 is used, As shown in FIG. 3, the first cover member 7A is attached to the peripheral edge of the disc 6). The first bristles 8A are inserted into the space between the first cover member 7A and the disk 6 through the first through hole 30A in a state where the first bristles 8A are bent into two forks. Then, as shown in FIGS. 7A, 8 and 9, the first bristle 8A has a first protrusion 13A inserted into the inner side of the fork and a bent part 80A of the fork is the first protrusion. Hooked to 13A. As shown in FIG. 3, FIG. 7 (a), and FIG. 8, the bifurcated legs 81A, 81A of the first brush bristles 8A extend outward from the first cutout 31A.

  The second brush bristles 8B are in a state similar to the first brush bristles 8A on the upper surface side on the lower surface side of the disk 6 (the first brush hair 8A shown in FIG. 9 and It will be in a similar state). That is, the second brush bristles 8B are inserted into the space between the second cover member 7B and the disk 6 from the second through hole 30B in a state of being bent into two forks. Then, as shown in FIG. 7A and FIG. 8, the second bristle 8B has the second protrusion 13B inserted into the inner side of the fork and the bent part 80B of the fork hooks on the second protrusion 13B. It is done. And the bifurcated both limbs 81B, 81B of the second brush bristles 8B extend outward from the second cutout 31B.

  FIG. 10 is an enlarged perspective view showing the limb 81A of the first brush hair 8A, and FIG. 11 is an enlarged perspective view showing the limb 81B of the second brush hair 8B.

  As shown in FIGS. 10 and 11, the first brush bristles 8A and the second brush bristles 8B have a square cross section. Moreover, as shown in FIG. 11, in the 2nd brush hair 8B, the square corner is extended in the spiral direction to the axial direction of the 2nd brush hair 8B because twist was added. The first brush hair 8A and the second brush hair 8B have sharp tips.

  The first brush bristles 8A and the second brush bristles 8B are made of a resin such as nylon mixed with aluminum powder. As the first brush bristles 8A and the second brush bristles 8B, for example, a nylon cord for mowing from Cal Enterprise can be used. The thickness of the brush hairs 8A, 8B is, for example, 2.2 to 5.0 mm, and the lengths of both limbs 81, 81 of the brush hairs 8A, 8B are 10 cm to 15 cm (that is, the brush hairs). The length of the bristles 8A and 8B when the 8A and 8B are extended straight is set to 20 cm to 30 cm).

  Further, in the present embodiment, as shown in FIG. 8, the outer peripheral edge portion of the disc 6 at a position corresponding to the notches 31 </ b> A and 31 </ b> B in a state where the cover members 7 </ b> A and 7 </ b> B are fixed to the peripheral portion of the disc 6. 60 is located inside the outer peripheral edges of the cover members 7A and 7B in plan view. This makes it possible to insert the bristles 8A and 8B into the through holes 30A and 80B in the oblique direction shown in FIG. 8, and extend the limbs 81A and 81A of the bristles 8A from the cutout 31A, or In extending the limbs 81B and 81B of the hair 8B from the notch 31B, the outer peripheral edge 60 of the disk 6 does not become an obstacle. For this reason, the bristle 8A, 8B brush bristles 8A, 8B can be easily attached to the rotating brush 1. In addition, said planar view is a view which looks at the rotating brush 1 from the upper side or lower side (the upper side or the lower side of the rotating brush 1) of FIG.

  As shown in FIG. 1, the mowing machine 5 in which the rotating brush 1 is used includes a drive source 2 and an operation tube 40, and the operation tube 40 has a first connected to the output shaft of the drive source 2. A rotating shaft 3A is provided. Further, the mower 5 includes a handle 41 for operating the direction of the operation tube 40, a throttle trigger 42 for operating the drive source 2, and a shoulder band 43 hung on the shoulder of the user.

  Further, as shown in FIG. 2, the mower 5 includes a second rotating shaft 3 </ b> B and a bevel gear mechanism 44 in addition to the above configuration. The bevel gear mechanism 44 has one end of the second rotating shaft 3B connected to the first rotating shaft 3A and can adjust the direction of the second rotating shaft 3B with respect to the first rotating shaft 3A. The second rotating shaft 3B has a screw thread or a screw hole formed at its lower end, and this lower end is inserted into the connecting hole 11 of the disk 6 and is tightened with a nut or bolt from the lower surface side of the disk 6. Thus, the rotating brush 1 is connected to the second rotating shaft 3B. And by this connection, the rotating brush 1 also rotates with the rotation of the 2nd rotating shaft 3B.

  When the mower 5 is used, first, the shoulder band 43 is slanted from the shoulder opposite to the dominant hand so that the operation tube 40 is arranged on the dominant hand side. Next, the drive source 2 is operated by pulling the throttle trigger 42 to rotate the output shaft of the drive source 2. Thereby, the first rotating shaft 3A rotates, the rotation is transmitted to the second rotating shaft 3B via the second bevel gear mechanism 44, and the second rotating shaft 3B and the rotating brush 1 rotate, The brush bristles move in the circumferential direction of the rotating brush 1. Then, the handle 41 is operated to move the rotating brush 1 on the work surface and the brush hair 8 is applied to the weed growing on the work surface, so that the weed is cut by the brush hair 8. While the rotating brush 1 is rotating, an outward centrifugal force acts on the bristle 8, so that the state where the bristle 8A is attached to the rotating brush 1 is maintained by the hooking of the bent portion 80A to the protrusion 13A. The state where the bristles 8B are attached to the rotating brush 1 is maintained by hooking the bent portion 80B to the protrusion 13B.

  According to the rotating brush 1 of the present embodiment, even if the work surface has an uneven portion, weeds grown on the uneven portion of the work surface by inserting the brush hairs 8 into the corners of the uneven portion. Can be reaped.

Furthermore, according to the rotating brush 1 of this embodiment, weeds can be reliably cut for the following reasons (1) to (5).
(1) Both the limbs 81A, 81A of the brush hair 8A extending from the cutout 31A of the cover member 7A continuously contact the same part of the weeds, and the brush hair 8B extending from the cutout 31B of the cover member 7B Both limbs 81B and 81B are continuously in contact with the same part of the weed.
(2) Three bristles 8A and three bristles 8B are attached to the upper and lower sides of the rotating brush 1, and both limbs 81 and 81 of the brush bristles 8 extend from the rotating brush 1. Therefore, the number of the bristle 8 which hits a weed per unit time (the number of the limbs 81) is large.
(3) The limbs 81 and 81 of the bristles 8 can be brought into close contact with the edge of the notch 31 by appropriately setting the size of the notch 31 of the cover member 7. For this reason, since the vertical and horizontal movements of the brush hair 8 can be regulated, the position of the brush hair 8 does not shift due to contact with the weeds.
(4) The brush bristle 8 is sharp because the brush bristle 8 material contains aluminum powder, the brush bristle 8 has a square cross section, and the brush bristle 8 has a sharp tip. Excellent.
(5) As for the 2nd bristle 8B to which twist was added, the corner | angular part has extended helically to the axial direction, and a corner | corner hits a weed reliably.

Furthermore, according to the rotating brush 1 of this embodiment, the brush hair 8 can be easily attached to the rotating brush 1 for the following reasons (1) to (3).
(1) The brush bristles 8 can be attached to the rotating brush 1 by a very simple operation of inserting the bristles 8 from the through holes 30 and extending the limbs 81, 81 of the bristles 8 from the notches 31. it can.
(2) Since the through hole 30 is formed in the opposed annular wall 22, the brush hair 8 can be inserted into the through hole 30 from above or below the cover member 7. For this reason, the bristle 8 can be easily inserted into the through hole 30.
(3) Since the outer peripheral edge portion 60 of the disk 6 at a position corresponding to the notch 31 is positioned on the inner side of the outer peripheral edge of the cover member 7 in plan view, both limbs of the brush hair 8 In extending 81A, 81A, 81B, 81B from the notch 31, the disk 6 does not become an obstacle.

  The present invention is not limited to the above-described embodiment, and various modifications can be made.

  For example, in the above-described embodiment, an example in which the cross section of the first brush hair 8A or the second brush hair 8B is a square is shown, but the cross section of the first brush hair 8A or the second brush hair 8B is a triangle. It may be a polygon other than a triangle or a rectangle. In addition, when the weeds to be cut are grasses that are easy to cut, the cross-section of the brush bristles 8 may be circular or elliptical, and the brush bristles 8 may not contain aluminum powder.

  Moreover, in the said embodiment, although the example which attaches the brush bristles 8A and 8B to the rotating brush 1 3 each was shown, the number of bristles 8A and 8B attached to the rotating brush 1 is not limited to three. That is, the bristle 8A attached to the rotating brush 1 by setting the number of the through holes 30A / notches 31A formed in the cover member 7A or the number of the through holes 30B / notches 31B formed in the cover member 7B to a number other than three. , 8B can also be other than three.

  Moreover, in the said embodiment, although the 1st brush bristle 8A was attached to the upper side of the rotating brush 1, and the 2nd brush bristle 8B was attached to the lower side of the rotating brush 1, the 1st brush bristle 8A and the 1st bristle 8A were shown. Only one of the two brush hairs 8 </ b> B may be attached to the rotating brush 1. When only the first brush bristles 8A are attached, the second brush bristles 8B are omitted, and the second cover member 7B and the second protrusion 13B are also omitted. When only the second brush hair 8B is attached, the first cover member 7A and the first protrusion 13A are also omitted by omitting the first brush hair 8A.

  Moreover, in the said embodiment, although the mowing machine 5 provided with the two rotating shafts 3A and 3B was shown, the number of the rotating shafts 3 with which the mowing machine 5 is provided may be one or more than three. When the number of rotating shafts 3 is 1, the output shaft of the drive source 2 is connected to one end of the rotating shaft 3 and the rotating brush 1 is connected to the other end of the rotating shaft 3. Then, the rotation of the output shaft is transmitted to the rotation shaft 3 so that the rotation shaft 3 and the rotation brush 1 rotate. When the number of rotating shafts 3 is a plurality of three or more, among the plurality of rotating shafts 3, the output shaft of the drive source 2 is connected to one rotating shaft 3, and the rotating brush 1 is connected to the second rotating shaft 3. Are concatenated. Then, the rotation of the output shaft is transmitted to the second rotating shaft 3 via the one rotating shaft 3 or the other rotating shaft 3, whereby the second rotating shaft 3 or the rotating brush 1 rotates.

DESCRIPTION OF SYMBOLS 1 Rotating brush 2 Drive source 3A, 3B Rotating shaft 5 Mowing machine 6 Disk 7A 1st cover member 7B 2nd cover member 8 Brush hair 8A 1st brush hair 8B 2nd brush hair 11 Connection hole 13A 1st Protrusion 13B Second protrusion 20 Inner annular wall 21 Outer annular wall 22 Opposing annular wall 30A First through hole 30B Second through hole 31A First notch 31B Second notch 80A First brush bristle bent part 80B Second brush hair bent portion 81A First brush hair limb 81B Second brush hair limb

Claims (8)

A rotating brush connected to a mower having a rotating shaft that rotates by actuation of a drive source,
With a disc,
An annular cover member;
With brush bristles,
The disc has a connecting hole for connecting to the rotary shaft of the mower at the center, and a protrusion extending in the vertical direction at the periphery.
The cover member has a C-shaped cross section, and is fixed to a peripheral portion of the disc so that the protrusion is located inside the C-shape.
A through hole is formed at a predetermined position on the inner peripheral side of the cover member, and a notch is formed on the outer peripheral edge of the cover member at a position outside the through hole in plan view.
In a state where the cover member is fixed to the peripheral edge of the disk, the protrusion is disposed at a position facing the through hole vertically or at a position facing the through hole vertically. The notch is arranged outside the protrusion,
The brush bristles are inserted into the space between the cover member and the disc from the through hole in a state of being bent into two forks, and the protrusions are inserted into the two forks. The bent part is hooked on the protrusion,
A rotating brush in which two limbs of the fork of the brush hair are extended outward from the cutout of the cover member.   The rotating brush according to claim 1, wherein the brush bristles are formed of a resin mixed with aluminum powder.   The rotary brush according to claim 2, wherein a cross-section of the bristle exhibits a triangle or a quadrangle.   The rotating brush according to claim 3, wherein the corners of the triangle or the quadrangle are spirally extended in the axial direction of the bristle by twisting the bristle. The cover member includes an inner annular wall that constitutes an inner peripheral edge, an outer annular wall that constitutes an outer peripheral edge, and an opposing annular wall that connects the tip of the inner annular wall and the tip of the outer annular wall. And
In a state where the cover member is fixed to the peripheral edge of the disc, the inner annular wall and the outer annular wall extend perpendicular to the disc, and the opposed annular wall faces the disc, The protrusion is located in a space between the opposed annular wall and the disc;
The through hole of the cover member is formed on the inner peripheral side of the opposed annular wall,
The rotary brush according to claim 1, wherein the cutout of the cover member is formed in the outer annular wall.   In a state where the cover member is fixed to the peripheral edge portion of the disc, the outer peripheral edge portion of the disc at a position corresponding to the notch is located on the inner side of the outer peripheral edge of the cover member in plan view. The rotating brush according to any one of claims 1 to 5. As the protrusion,
A first protrusion extending upward from the upper surface of the peripheral edge of the disc;
A second protrusion extending downward from the lower surface of the peripheral edge of the disc is formed,
As the cover member,
A first cover member that has a C-shaped cross section and is fixed to the upper surface of the peripheral edge of the disc so that the first protrusion is located inside the C-shape;
A second cover member that has a C-shaped cross section and is fixed to the lower surface of the peripheral edge of the disc so that the second protrusion is located inside the C-shape;
A first through hole is formed at a predetermined position on the inner peripheral side of the first cover member, and the outer peripheral edge of the first cover member is positioned outside the first through hole in plan view. A first notch is formed,
A second through hole is formed at a predetermined position on the inner peripheral side of the second cover member, and the outer peripheral edge of the second cover member is positioned outside the second through hole in plan view. A second notch is formed,
In a state where the first cover member is fixed to the upper surface of the peripheral edge of the disk, the first cover member is positioned at a position facing the first through hole vertically or at a position facing the first through hole vertically. The first protrusion is disposed outside, the first notch is disposed outside the first protrusion,
In a state where the second cover member is fixed to the lower surface of the peripheral edge of the disc, the second cover member is positioned at a position facing the second through hole vertically or at a position facing the second through hole vertically. The second protrusion is disposed outside, the second notch is disposed outside the second protrusion,
As the brush hair,
In a state of being bent into two forks, the first projection is inserted into the inner side of the two forks while being inserted into the space between the first cover member and the disc from the first through hole. A first brush hair having a bifurcated bent portion hooked on the first protrusion;
In a state of being bent into two forks, the second protrusion is inserted into the space between the second cover member and the disk through the second through hole and the second protrusion is inserted into the forks. A second bristle with a bifurcated bent portion hooked on the second protrusion,
The bifurcated limbs of the first brush hair extend outward from the first notch,
The rotary brush according to any one of claims 1 to 6, wherein the two limbs of the second brush hair extend outward from the second cutout. A mowing machine comprising the rotating brush according to any one of claims 1 to 7,
Having a rotating shaft that rotates upon actuation of the drive source;
A mowing machine in which the rotating brush is connected to the rotating shaft.