201217073 六、發明說明： 【發明所屬之技彳衍領域】 發明領域 本發明涉及清掃車用地板刷，以及用於清掃積聚了大 量要清掃的塵垢或垃圾的例如道路建築地點或大樓建築地 點的某些區域的清掃車用地板刷。 C 前椅】 發明背景 如第10圖所示，被稱為地板刷丨丨的清掃工具在清掃車 10灿側成一排地固定於轉軸15，用以清掃積聚大量要清掃 垃圾的例如道路建築地點、大樓建築地點、高爾夫場地和 人邊草坪的場所。隨著清掃車10向前和向後移動，地板刷 11借助液壓馬達轉動以由此清掃垃圾。 如第11圖所示，用於清掃大面積場所的地板刷u裝配 有用於插入轉柄的g己合孔12 ’且刷找部件14的根部被插入 到具有U形橫截面的金屬環13_形槽中，刷拭部件沿徑向 設置，並將黏合劑插入U形槽，並將兩側壁擠壓和彎曲成s 形。因此，隨著配合於轉轴的地板刷u轉動，㈤置成徑向 形狀的職。卩件14執行清掃J1作同時㈣帚雜刷拭和清 掃垃圾。 刷拭部件U由具有良好彈力的材料製成’這是由於要 求刷拭部件在清掃過程中像弓那樣f曲並隨後靠彈性恢 復’職料的形狀就像縱向和細桿部件並與地面接觸。 因此，刷栻部件14優選地由作為特殊材料之一的高彈性塑 3 S' 201217073 膠製成，並且以特定直徑和長度模制而成。 當由特殊塑膠製成的高彈性刷拭部件14用於清掃其表 面為重建鋪彻路而被切開的瀝青路面時，刷拭部件14可能 由於粗糙的清掃環境而容易被磨損，這將導致地板刷11更 頻繁的更換，由此不利地增加了維護成本。 試驗表明，為克服前述傳統難題，刷拭部件可以由具 有比塑膠好得多的耐磨性能的極好彈性金屬絲製成。當使 用彈性金屬絲時，可增加彈性恢復力，並也能提高耐磨性 旎由此延長產品的使用壽命，但是，毗鄰的彈性金屬絲會 缠繞’這會導致清掃效率的惡化’因此實際上在業内不採 用彈性金屬絲。 【項^明内穷】 發明概要 因此，本發明的一個目的是提供一種清掃刷用地板刷 及其製造方法，它們在提供極好的彈性恢復力同時能夠防 匕鄰刷拭、..糸相互纏繞並提高耐磨性能，由此顯著地降低 維護成本並伴隨產品制壽命的增加。 為了實現前述目的，這裡提供一種清掃車用地板刷， =地板刷包括配合在清掃車前側而借錢轉操作清掃某一 區域的多個刷拭部件，刷拭部件包括由各自具有—定彈性 力的金屬4製成的内芯以及由塗覆在内芯外側的由塑膠塗 層形成的塗有_的金屬絲。 塑膠塗覆金屬絲被安裝在清掃車的前側，塗覆塑膠的 屬4'的根。卩谷納在具有。形橫截面的固定部件的υ开多槽 201217073 :，所述肢部相定地配合於借助縣部件旋轉的轉 塗覆塑膠的金屬絲以徑向形狀設置，塗覆塑勝的金屬 4通過擠壓岐餐的兩_壁而雜和固定。 塗覆塑膠的金屬絲折疊成v形並插入固定金屬絲並聚 =和排列成—直線，且隨後將固定金屬絲以環形固定地纏 繞在固”件的圓柱部分的外表面上，㈣難膠的金屬 絲沿徑向形狀散開，且塗覆_的金屬絲通過擠壓固定部 件的兩側壁而受壓和固定。 固 成的。 定部件是通過將端部形成L形的—對部件配合而形 固定部件的側壁受壓並形成S形彎曲部分。 内芯從下面一組材料中選取：鋼琴鋼絲、輕鋼絲、高 碳鋼和彈簣鋼。 效果 根據本發明’將具有更好彈性力的金屬内芯定位在清 掃車用地板刷的刷拭部件的中央，並用塑膠塗層包圍金屬 内芯的外部結構。使用具有使刷拭部件在清掃過程中彈性 彎曲並恢復的極好彈性恢復力並具有光潔和光滑表面特徵 的塑膠塗層’由此防止刷拭部件纏繞，從而使產201217073 VI. Description of the Invention: [Technical Fields of Inventions] Field of the Invention The present invention relates to a floor brush for a sweeping vehicle, and to a cleaning, for example, a road construction site or a building site where a large amount of dust or garbage to be cleaned is accumulated. Floor sweepers for sweepers in these areas. C Front Chair] BACKGROUND OF THE INVENTION As shown in Fig. 10, a cleaning tool called a floor brush is fixed to the rotating shaft 15 in a row on the side of the cleaning vehicle 10 for cleaning and accumulating a large amount of road construction sites to be cleaned, for example. , building location, golf course and people's lawn. As the sweeping cart 10 moves forward and backward, the floor brush 11 is rotated by means of a hydraulic motor to thereby clean the rubbish. As shown in Fig. 11, the floor brush u for cleaning a large-area place is equipped with a g-hole 12' for inserting a rotary handle and the root of the brush-finding member 14 is inserted into a metal ring 13_ having a U-shaped cross section. In the groove, the brushing member is disposed in the radial direction, and the adhesive is inserted into the U-shaped groove, and the both side walls are pressed and bent into an s shape. Therefore, as the floor brush u fitted to the rotating shaft rotates, (5) is placed in a radial shape. The device 14 performs cleaning J1 at the same time (four) noisy brushing and cleaning the garbage. The brushing member U is made of a material having good elasticity 'this is due to the requirement that the brushing member be bent like a bow during the cleaning process and then restored by elasticity. The shape of the material is like a longitudinal and thin rod member and is in contact with the ground. . Therefore, the brush member 14 is preferably made of a highly elastic plastic 3 S' 201217073 glue which is one of special materials and molded in a specific diameter and length. When the highly elastic brushing member 14 made of a special plastic is used to clean the asphalt pavement whose surface is cut to rebuild the paving road, the brushing member 14 may be easily worn due to a rough cleaning environment, which will result in the floor. The brush 11 is replaced more frequently, thereby disadvantageously increasing maintenance costs. Tests have shown that in order to overcome the aforementioned conventional problems, the brushing member can be made of an excellent elastic wire having a much better wear resistance than plastic. When an elastic wire is used, the elastic restoring force is increased, and the wear resistance is also improved, thereby prolonging the service life of the product, but the adjacent elastic wire is entangled 'this causes a deterioration in cleaning efficiency', so actually Elastic wires are not used in the industry. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a floor brush for a cleaning brush and a method of manufacturing the same that provide excellent elastic restoring force while preventing smear and wiping Winding and improved wear resistance, thereby significantly reducing maintenance costs and accompanying an increase in product life. In order to achieve the foregoing object, a floor brush for a sweeping vehicle is provided. The floor brush includes a plurality of brushing members that cooperate with the front side of the sweeping vehicle to borrow money to clean an area. The brushing members include respective elastic forces. An inner core made of metal 4 and a coated metal wire formed of a plastic coating applied to the outside of the inner core. The plastic coated wire is mounted on the front side of the sweeper and is coated with a 4' root of the plastic. Shibuya is in possession. The cross-section of the fixed part of the splitting member of the multi-slot 201217073: the limb is correspondingly fitted to the metal strip of the plastic coated by the rotation of the county part in a radial shape, and the plastic coated metal 4 is squeezed The two walls of the meal are mixed and fixed. The plastic coated wire is folded into a v shape and inserted into the fixing wire and assembled and arranged in a straight line, and then the fixing wire is fixedly wound around the outer surface of the cylindrical portion of the solid member in a ring shape, (4) difficult to glue The wire is spread out in a radial shape, and the coated wire is pressed and fixed by pressing the two side walls of the fixing member. The fixing member is formed by fitting the end portion into an L shape. The side wall of the shaped fixing member is pressed and forms an S-shaped curved portion. The inner core is selected from the following group of materials: piano wire, light steel wire, high carbon steel and elastic steel. Effect according to the invention 'will have better elasticity The metal core is positioned in the center of the brushing member of the floor brush for the sweeping vehicle, and surrounds the outer structure of the metal core with a plastic coating. The use of the elastic elastic force which causes the brushing member to elastically bend and recover during the cleaning process And a plastic coating with a smooth and smooth surface feature' - thereby preventing the brushing parts from becoming entangled
命延長ΐ降低維護成本。特別地，可將金屬内芯折疊成V 形並以環形與_連接並配合，以使金屬内芯不脫離，並 且較為有觀不採㈣合劑㈣止職部件脫離。 圖式簡單說明 本發明可參照僅以示例方式給出並因此不對本發明構 5 &· 201217073 成限制的附圖而得到更好的理解。 第1圖是根據本發明的清掃車用地板刷的一側的照片； 第2圖是示出根據本發明的清掃車用地板刷的橫截面 的圖； 第3圖是根據本發明的清掃車用地板刷的外形的前側 的照片； 第4圖是示出根據本發明的清掃車用地板刷的刷拭部 件的橫截面前視圖； 第5圖是示出根據本發明的清掃車用地板刷的刷拭部 件的橫截面側視圖； 第6圖是示出根據本發明的刷拭部件折疊成V形並懸掛 有金屬絲的結構的圖； 第7圖是示出是示出根據本發明的刷拭部件折疊成V形 並懸掛有金屬絲並以環形纏繞在固定部件的圓柱部分上的 狀態的橫截面側視圖； 第8圖是示出根據本發明另一示例的固定部件的示圖； 第9圖是示出根據本發明的在擠壓側壁前將V形刷拭部 件以環形纏繞和附連在第8圖的固定部件的狀態的橫截面 前視圖；以及 第10和11圖是描述現有技術的圖。 I：實施方式3 具體實施方式 下面，將參照附圖來描述本發明的一些實施例。 如第1和2圖所示，根據本發明的地板刷21在清掃車輛 201217073 ι〇刖側配合在由某—驅動部件—例如電動機或引擎，優 選為液壓馬達——驅動的轉軸上’由此對地面進行清掃。 地板刷21包括在中央部分具有合m的固定部件η，且 固定部件23的橫截面形成為，該固定部扣的外側開 口 ’通過圓柱部分24插人轉軸’並且側壁25、26從圓柱部 分24的兩端開始垂直延伸，刷拭部件24的端部經由開口插 入U形槽27,且固定部件23的兩側壁25、26受壓，由此借助 固定部件23的兩側壁25、26固定刷栻部件28的根部。在這 種狀態下，刷拭部件28看上去是類似手持扇的徑向形狀， 並在U形槽27中充填黏合劑（在第2圖的槽27中以細點表示） 以防止刷拭部件28脫離，並優選地擠壓側壁25、26。 如第4和5圖所示’作為本發明其中一個關鍵要素，刷 拭部件28包括：塗覆塑膠的金屬絲28，沿其橫截面觀察可 見，該塗覆塑膠金屬絲28由具有彈性力的金屬絲製成的内 芯29和塗覆在内芯外側的塑膠塗層30形成。刷拭部件，即 塗覆塑膠的金屬絲28形成為雙層材料結構。 内芯29由彈性金屬絲製成’例如具有可彎曲並隨後恢 復的極好彈性力的鋼琴絲或輕鋼絲或者碳鋼或彈簧鋼，這 些都是具有極好彈性力的特種鋼。 在塗覆塑膠的金屬絲28被接合的狀態下，當固定部件 23受壓時，固定部件23被擠壓以使兩側壁25、26不平整而 在其表面上形成為S形凸起形狀。第3圖是根據本發明的地 板刷21從其前側拍攝到的照片，其中固定部件23彎曲成S 形。在該彎曲狀態下，當多個地板刷21成排地插入到轉軸 7 201217073 時’-個地板刷21可覆蓋很宽的清掃範圍B。 第6 9圖是示出根據本發明配合有塗覆塑膠的金屬絲 28的例子的不圖。如第2圖所示，當塗覆塑膠的金屬絲28形 成為直線形狀並隨後被固定時，可防止金屬内芯29脫離。 在塗覆塑膠的金屬絲28的情形下，内芯Μ和塑膠塗層3〇由 於其物理特性的差異而具有很弱的配合力，因此兩者之間 的邊界實際上是分開的，由此内芯27可脫離。 為了防止上述問題，根據本發明的塗覆塑膠的金屬絲 28如第6圖所示地彎曲成v形，而塗覆有¥形塑膠的金屬絲 28a(在k裡私號28a表示該塗覆塑膠的金屬絲彎曲成乂形) 密集地成排懸掛有固定金屬絲31並如第7圖所示以環形纏 繞在固；t部件23的圓柱部分24的外表面上。此時，環形結 構32被纏繞以形成一條線或兩至五條線。 在运種狀態下，通過擠壓兩側壁25、26(或使表面如第 3圖所示那樣凸起）並將包含V形塗覆塑膠的金屬絲2如的環 形結構32固定而製成地板刷21。 第8圖是示出固定部件的另一示例的示圖。固定部件23 包括插入並彼此配合的圓柱部分24a、24b以及具有側壁 25、26的L形左、右部件33、34 〇環形結構32是之前製造的。 至少一個環开> 結構32插入如第9圖所示的一個側部件％的 圓柱部分24a的外側，而另一側部件34的圓柱部分24b插入 到陳部分24 a ’並從兩側施加力F，以使彼此配合的圓柱 部分24a、24b彎曲以由此強固和容易地較環形結構3 2。 作為本發明實施例的一個優勢，借助加壓成.型工藝能容易 201217073 地製造出左、右部件33、34，並且配合環形結構32的可操 作性極好，這根據發明人執行的試驗結果是最佳的。 根據本發明的刷拭部件28 ’即塗覆塑膠的金屬絲28， 是以這樣一種方式製成的：將具有高彈性力的内芯29插入 其中央部分，内芯在清掃過程中彎曲並隨後恢復到直線形 狀。刷拭部件28相比僅使用塑膠時具有極好的耐磨特性， 並且可長時間使用，這將防止其頻繁更換並降低了維護成 本。特別是’由於塗覆塑膠的金屬絲28配合成V形，則内芯 29不會脫離。可不使用黏合劑地獲得穩定的配合狀態。由 於固定部件被分成兩部分，因此能顯著提高組裝性能。 這裡’附圖標記35代表用來固定於轉軸的鉚釘15(參見 第10圖）的插入孔，而附圖標記36代表當配合於另一側部件 33時形成以圍繞鉚釘15的外侧的開口槽。 根據本發明的刷拭部件已描述為配合於固定部件並使 用。在本發明的另一示例中，刷拭部件可配合於圓形板的 下表面’該圓形板借助馬達在平表面上轉動，從而高效地 執行清掃工作’這並不超出本發明的範圍。 由於本發明可以若干形式體現而不會背離其精神或實 貝特徵，所以應理解的是，前述示例不受以上說明書的任 何細節的限制’除非另有說明，否則應被寬泛地理解為在 如所附申請專利範圍所限定的其精神和範圍内，因此落在 申μ專利範圍的邊界和界限内、或者落在這些邊界和界限 的等效形式内的所有改變和變形都應理解為被所附申請專 利範圍所涵蓋。 9 201217073 r:圖式簡單說明3 第1圖是根據本發明的清掃車用地板刷的一側的照片； 第2圖是示出根據本發明的清掃車用地板刷的橫截面 的圖； 第3圖是根據本發明的清掃車用地板刷的外形的前側 的照片； 第4圖是示出根據本發明的清掃車用地板刷的刷拭部 件的橫截面前視圖； 第5圖是示出根據本發明的清掃車用地板刷的刷拭部 件的橫截面側視圖； 第6圖是示出根據本發明的刷拭部件折疊成V形並懸掛 有金屬絲的結構的圖， 第7圖是示出是示出根據本發明的刷拭部件折疊成V形 並懸掛有金屬絲並以環形纏繞在固定部件的圓柱部分上的 狀態的橫截面側視圖； 第8圖是示出根據本發明另一示例的固定部件的示圖； 第9圖是示出根據本發明的在擠壓側壁前將V形刷拭部 件以環形纏繞和附連在第8圖的固定部件的狀態的橫截面 前視圖；以及 第10和11圖是描述現有技術的圖。 【主要元件符號說明】 10…清掃車 11、21···地板刷 12..·孔 10 201217073 13…金屬環 14、24、28…刷拭部件 15…轉轴 15…鉚釘 22·· ·配合孔 23…固定部件 24、 24a、24b…圓柱部分 25、 26···側壁 27…U形槽 28、28a…金属絲 29···内芯 30…塑膠塗層 31…固定金屬絲 32…環形結構 33、34…左、右部件 35、36···標記 11Life extensions reduce maintenance costs. In particular, the metal core can be folded into a V shape and joined and mated in a ring shape so that the metal core does not come off, and the (4) mixture (4) the stop member is detached. BRIEF DESCRIPTION OF THE DRAWINGS The invention may be better understood with reference to the drawings, which are given by way of example only, and thus are not to be construed as limiting. 1 is a photograph of one side of a floor brush for a sweeping vehicle according to the present invention; FIG. 2 is a view showing a cross section of a floor brush for a sweeping vehicle according to the present invention; and FIG. 3 is a sweeping vehicle according to the present invention. Photograph of the front side of the outer shape of the floor brush; Fig. 4 is a cross-sectional front view showing the brushing member of the floor brush for a sweeping vehicle according to the present invention; and Fig. 5 is a view showing the floor brush for the sweeping vehicle according to the present invention; A cross-sectional side view of the brushing member; Fig. 6 is a view showing a structure in which the brushing member is folded into a V shape and suspended with a wire according to the present invention; and Fig. 7 is a view showing the structure according to the present invention. A cross-sectional side view of a state in which a brushing member is folded into a V shape and a wire is suspended and wound in a ring shape on a cylindrical portion of the fixing member; FIG. 8 is a view showing a fixing member according to another example of the present invention; Figure 9 is a cross-sectional front view showing a state in which a V-shaped brushing member is wound around and attached to a fixing member of Fig. 8 before pressing a side wall according to the present invention; and Figs. 10 and 11 are descriptions A diagram of the prior art. I: Embodiment 3 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, some embodiments of the present invention will be described with reference to the drawings. As shown in Figures 1 and 2, the floor brush 21 according to the present invention is fitted on the rotating shaft of the cleaning vehicle 201217073 ι〇刖 on a rotating shaft driven by a driving member such as an electric motor or an engine, preferably a hydraulic motor. Clean the floor. The floor brush 21 includes a fixing member η having a m in the central portion, and the cross section of the fixing member 23 is formed such that the outer opening ' of the fixing portion buckle is inserted through the cylindrical portion 24 and the side walls 25, 26 are from the cylindrical portion 24 The ends of the brushing member 24 start to extend vertically, the end of the brushing member 24 is inserted into the U-shaped groove 27 via the opening, and the two side walls 25, 26 of the fixing member 23 are pressed, thereby fixing the brush by the two side walls 25, 26 of the fixing member 23. The root of the component 28. In this state, the brushing member 28 appears to be a radial shape similar to that of the hand-held fan, and the U-shaped groove 27 is filled with an adhesive (indicated by fine dots in the groove 27 of Fig. 2) to prevent the brushing member 28 Disengage, and preferably squeeze the side walls 25, 26. As shown in Figures 4 and 5, as one of the key elements of the present invention, the brush member 28 includes a plastic coated wire 28 which is visible along its cross section and which is coated with a resilient force. An inner core 29 made of wire and a plastic coating 30 coated on the outer side of the inner core are formed. The brushing member, i.e., the plastic coated wire 28, is formed in a two-layer material structure. The inner core 29 is made of an elastic metal wire such as a piano wire or a light steel wire or a carbon steel or a spring steel which has an excellent elastic force which can be bent and subsequently recovered, and these are special steels having excellent elastic force. In a state where the plastic coated wire 28 is joined, when the fixing member 23 is pressed, the fixing member 23 is pressed to make the side walls 25, 26 uneven and to have an S-shaped convex shape on the surface thereof. Fig. 3 is a photograph taken from the front side of the floor brush 21 according to the present invention, in which the fixing member 23 is bent into an S shape. In this bent state, when a plurality of floor brushes 21 are inserted into the rotating shaft 7 201217073 in a row, the floor brush 21 can cover a wide cleaning range B. Fig. 69 is a view showing an example in which the plastic-coated wire 28 is fitted according to the present invention. As shown in Fig. 2, when the plastic coated wire 28 is formed into a linear shape and then fixed, the metal core 29 can be prevented from coming off. In the case of the plastic coated wire 28, the inner core and the plastic coating 3 have a weak mating force due to the difference in physical properties, so the boundary between the two is actually separated, thereby The inner core 27 can be detached. In order to prevent the above problem, the plastic-coated wire 28 according to the present invention is bent into a v shape as shown in Fig. 6, and is coated with a wire-shaped plastic wire 28a (in the k, the private number 28a indicates the coating). The plastic wire is bent into a meandering shape. The fixing wire 31 is densely suspended in a row and wound in an annular shape on the outer surface of the cylindrical portion 24 of the t-part 23 as shown in FIG. At this time, the annular structure 32 is wound to form one line or two to five lines. In this state, the floor is made by pressing the two side walls 25, 26 (or causing the surface to be convex as shown in Fig. 3) and fixing the ring structure 32 containing the V-coated plastic wire 2, for example. Brush 21. Fig. 8 is a diagram showing another example of the fixing member. The fixing member 23 includes cylindrical portions 24a, 24b that are inserted and fitted to each other, and L-shaped left and right members 33, 34 having side walls 25, 26. The annular structure 32 is previously manufactured. At least one loop-opening structure 32 is inserted into the outer side of the cylindrical portion 24a of one side member as shown in Fig. 9, and the cylindrical portion 24b of the other side member 34 is inserted into the male portion 24a' and exerting force from both sides. F, to bend the cylindrical portions 24a, 24b that are fitted to each other to thereby be stronger and easier than the annular structure 3 2 . As an advantage of the embodiment of the present invention, the left and right members 33, 34 can be easily manufactured by the press-forming process, and the operability of the ring-shaped structure 32 is excellent, which is based on the test results performed by the inventors. It is the best. The brushing member 28' according to the present invention, that is, the plastic-coated wire 28, is formed in such a manner that an inner core 29 having a high elastic force is inserted into a central portion thereof, and the inner core is bent during the cleaning process and then Restore to a straight shape. The brushing member 28 has excellent wear resistance compared to the use of only plastic, and can be used for a long period of time, which prevents frequent replacement and reduces maintenance costs. In particular, since the plastic-coated wire 28 is combined into a V-shape, the inner core 29 does not come off. A stable mating state can be obtained without using an adhesive. Since the fixed member is divided into two parts, the assembly performance can be remarkably improved. Here, 'reference numeral 35 denotes an insertion hole for fixing the rivet 15 (see FIG. 10) of the rotating shaft, and reference numeral 36 denotes an opening groove formed to surround the outer side of the rivet 15 when fitted to the other side member 33. . The brushing member according to the present invention has been described as being fitted to a fixing member for use. In another example of the present invention, the brushing member can be fitted to the lower surface of the circular plate. The circular plate is rotated on the flat surface by the motor to perform the cleaning operation efficiently. This does not go beyond the scope of the present invention. Since the present invention may be embodied in a number of forms without departing from the spirit or the features of the present invention, it should be understood that the foregoing examples are not limited by the details of the above description, unless otherwise indicated, All changes and modifications that fall within the boundaries and limits of the scope of the invention, or which fall within the equivalents of the Covered by the scope of the patent application. 9 201217073 r: BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a photograph of one side of a floor brush for a sweeping vehicle according to the present invention; FIG. 2 is a view showing a cross section of a floor brush for a sweeping vehicle according to the present invention; 3 is a photograph of the front side of the outer shape of the floor brush for a sweeping vehicle according to the present invention; FIG. 4 is a cross-sectional front view showing the brushing member of the floor brush for a sweeping vehicle according to the present invention; A cross-sectional side view of a brushing member of a floor brush for a sweeping vehicle according to the present invention; Fig. 6 is a view showing a structure in which a brushing member is folded into a V shape and a wire is suspended according to the present invention, and Fig. 7 is a view Shown is a cross-sectional side view showing a state in which the brushing member is folded into a V shape according to the present invention and suspended with a wire and wound around the cylindrical portion of the fixing member in an annular shape; FIG. 8 is a view showing another according to the present invention. Fig. 9 is a cross-sectional front view showing a state in which a V-shaped brushing member is wound in an annular shape and attached to a fixing member of Fig. 8 before pressing a side wall according to the present invention. And 10 and 11 are diagrams describing the prior art Fig. [Description of main component symbols] 10...sweeping car 11, 21···floor brush 12..·hole 10 201217073 13...metal ring 14,24,28...brushing part 15...rotor 15...rivet 22·· Hole 23...fixing member 24, 24a, 24b...column portion 25, 26···side wall 27...U-shaped groove 28, 28a...wire 29···inner core 30...plastic coating 31...fixed wire 32...ring Structure 33, 34... left and right parts 35, 36··· mark 11