JP4099752B2

JP4099752B2 - Ring brush type main brush device for road sweeper

Info

Publication number: JP4099752B2
Application number: JP2002118651A
Authority: JP
Inventors: 治之加藤
Original assignee: Howa Machinery Ltd
Current assignee: Howa Machinery Ltd
Priority date: 2002-04-22
Filing date: 2002-04-22
Publication date: 2008-06-11
Anticipated expiration: 2022-04-22
Also published as: JP2003313838A

Description

【０００１】
【発明の属する技術分野】
この発明は、凸部と凹部とが形成された複数の波ブラシを主ブラシコアに挿通して構成した路面清掃車のリングブラシ式主ブラシ装置に関する。
【０００２】
【従来の技術】
従来の路面清掃車のリングブラシ式主ブラシ装置について図６及び本発明を説明した図１と図３と図４を参照して説明する。先ず、周知の主ブラシ装置の概要を説明すると、図１のごとく主ブラシ装置１は、左右の懸吊アーム２Ｌ，２Ｒと、主ブラシ（掃き上げブラシ）３とから構成されている。左右の懸吊アーム２Ｌ，２Ｒは、その一端が車体４の後部に上下方向へ揺動自在に枢着されており、主ブラシ３の路面５への押付量を調整可能となっていると共に図示しない昇降機構により主ブラシ３を路面５に接地する清掃位置と格納位置とに移動するようになっている。図１において左の懸吊アーム２Ｌの他端には軸受手段６が設けられており、右の懸吊アーム２Ｒの他端には駆動モータとしての油圧モータ７を備えた主ブラシ駆動手段８が設けられている。これら軸受手段６と主ブラシ駆動手段８の間には主ブラシ３の主ブラシコア９に一体的に挿通したブラシ軸１０が回転可能に支持されており、ブラシ軸１０の一端に前記駆動モータ７が接続され、主ブラシ３を主ブラシ装置１の前方に配置された図示しないコンベアに向けて路面５上の塵埃を掃き上げる方向に回転される。
【０００３】
前記主ブラシ３として、従来、図６のような３面合せの波ブラシ（リングブラシ）１１Ａを用いたものがある。主ブラシ３は、主ブラシコア９の外周に複数の３面合せの波ブラシ（リングブラシ）１１Ａが挿通され構成されている。３面合せの波ブラシ１１Ａを図６及び図３と図４とを参照して説明する。波ブラシ１１Ａは、リング部材２０Ａの外周にブラシ素材（フィラメント）２１を放射状に備えてなり、リング部材２０Ａは、リング部材２０Ａを折り曲げて波ブラシ１１Ａの円周方向に沿って、軸線方向に向けて凸部２３Ａと凹部２４Ａとが形成され、その凸部２３Ａと凹部２４Ａ間を連続する傾斜部２５Ａが形成されている。凸部２３Ａと凹部２４Ａは波ブラシ１１Ａの円周方向に沿って夫々３ヶ所等ピッチで設けられている。この波ブラシ１１Ａは、主ブラシコア９に挿通した際に、隣り合う１方の波ブラシ１１Ａの凸部２３Ａに対して他方の波ブラシ１１Ａを円周方向に凸、凹部間ピッチＰだけずらした状態で軸線方向で３ヶ所で、凹、凸部が背中合わせで当接するように主ブラシコア９に挿入してある。
【０００４】
このようにリングブラシ式主ブラシ装置１は、その主ブラシ３が主ブラシコア９と波ブラシ１１Ａとから成るので、例えば主ブラシ３を構成する際には、主ブラシコア９を垂直に路面５上に立てた状態で、その主ブラシコア９に波ブラシ１１Ａを次々に挿入していくことで組み立てることができるので、交換用機器が不要であり、主ブラシを簡単に構成することができるので、ブラシ交換作業が容易である。また、主ブラシは複数の波ブラシから成っているので、異なるブラシ素材の波ブラシを組み合わせて主ブラシを構成すれば、清掃対象物（路面の状態）に対応した主ブラシを構成でき、清掃能力を高めることができる。
【０００５】
【発明が解決しようとする課題】
前記従来の技術に記載のものは波ブラシが３面合せであり、波ブラシを用いた清掃車の清掃速度は、波ブラシの路面に接地している凸部（凹部）の後端から次の凸部（凹部）の先端までの凸部間角度（凹部間角度）に反比例し、主ブラシの回転数に比例して決まるため、主ブラシの回転数が一定の場合、凸部間角度の大きい３面合わせの波ブラシでは、清掃速度が遅かった。
本願の課題は、従来の利点はそのままで、清掃車の清掃速度を速くできる路面清掃車のリングブラシ式主ブラシ装置を提供することである。
【０００６】
【課題を解決するための手段】
前記課題解決のため本願発明では、リング部材を折り曲げてリング部材の円周方向に沿って、軸線方向に向けて凸部と傾斜部と凹部を連続して形成し、そのリング部材にブラシ素材を設けて波ブラシを構成し、隣り合う一方の波ブラシの凹部に対して他方の波ブラシの凸部が背中合せとなるようにした状態で主ブラシコアの全長に亘って複数の波ブラシを挿通して成る路面清掃車のリングブラシ式主ブラシ装置において、コアパイプの両端部にプレートを設けると共にこれらのプレート間にコアパイプの軸線方向に沿って伸びる４本のコア部材を円周方向等間隔に架設して主ブラシコアを構成し、リング部材の合せ目部分をリング部材の内周に向けて突出する係合爪により接合すると共に、リング部材に軸線方向に向かう４ヶ所以上の凸部と凹部とそれらを連続する傾斜部とを夫々リング部材の円周方向に屈曲形成して波ブラシを構成し、波ブラシを主ブラシコアに挿入するとき、波ブラシの係合爪を何れか１つのコア部材に係合させると共に、隣り合う一方の波ブラシに対して他方の波ブラシを裏返して一方の波ブラシの凹部に他方の波ブラシの凸部を当接させ、円周方向において４ヶ所以上のブラシ素材が互いに角度をあけて路面に接地するようにしたことを特徴とする（請求項１）。これによれば凸部と凸部または凹部と凹部の成す凸部間角度または凹部間角度が小さくなり、清掃車の清掃速度を速くすることができる。
【０００７】
ブラシ素材の異なる波ブラシを組み合わせて主ブラシコアに挿通して主ブラシを構成し、主ブラシの右側と左側のブラシ素材の材質を異ならせたことを特徴とする（請求項２）。これによれば、清掃対象物に対応して主ブラシを構成することができて好ましい。
【０００８】
【発明の実施の形態】
本願発明の実施の形態について図１〜図５に基づいて説明する。前記従来の技術と同一部分については説明を省略する。左右の懸吊アーム２Ｌ，２Ｒに駆動モータ７により回転可能に支持されている主ブラシ（掃き上げブラシ）３の主ブラシコア９は、図１に示すように、コアパイプ１２とコア部材１３とから成っている。コアパイプ１２の内部には、ブラシ軸１０の外周との間に隙間を有した状態でブラシ軸１０が貫通されている。図１においてブラシ軸１０の右端側の外周には駆動プレート１４が固着されている。駆動プレート１４の外周部分には、ブラシ軸軸線方向に突出する先端が略円錐形状の複数のトルク伝達爪１６が円周方向等間隔に設けられている。コアパイプ１２の右端には、トルク伝達爪１６と係合する被動プレート１７が一体溶着されており、左端側には左連結プレート１８が一体溶着されている。被動プレート１７と左連結プレート１８間には、ブラシ軸１０の軸線方向に沿って伸びる、断面が矩形の４本のコア部材１３が円周方向等間隔に架設されており、これらコア部材１３の右端はコア部材１３より主ブラシコア９半径方向外側に広がる右プレート１９で連結されている。
【０００９】
この主ブラシコア９の外周に外装される複数の波ブラシ１１は、長手方向に長い長尺部材にブラシ素材２１を放射状に植設し、これを屈曲してリング部材２０に成形してあり、図２に示すようにリング部材２０の外周にブラシ素材２１が放射状となるように構成されている。リング部材２０の合せ目部分は図示しないプレートと係合爪２２により接合されている。係合爪２２は、リング部材２０の内周に向けて突出するように設けられており、何れかのコア部材１３と係合し、トルクを波ブラシ１１に伝達する。また、図３や、図４の円周方向全周の展開図に示すように、リング部材２０は屈曲形成されており、夫々４ヶ所の凸部２３と凹部２４と、隣り合う凸部２３と凹部２４とを連続する傾斜部２５が波ブラシ１１の円周方向に等ピッチＰ１で設けられている。この波ブラシ１１を主ブラシコア９に挿入する際には、何れか１つのコア部材１３に係合爪２２を係合し、次に挿入される波ブラシ１１は先の波ブラシ１１と９０度ずらして先の波ブラシ１１の係合爪２２が係合するコア部材１３と９０度位相が異なるコア部材１３に係合爪２２を係合するというように、順次波ブラシ１１を９０度ずらして主ブラシコア９に外装していく。これを図２により説明すると、先ず係合爪２２をコア部材１３ａに係合し、次の波ブラシ１１の係合爪２２をコア部材１３ｂに係合し、その次の波ブラシ１１の係合爪２２をコア部材１３ｃに係合し、更にその次の波ブラシ１１の係合爪２２をコア部材１３ｄに係合し、以降の波ブラシ１１の係合爪２２もコア部材１３ａ，１３ｂ，１３ｃ，１３ｄに順次係合していく。
【００１０】
また、このとき隣り合う波ブラシ１１は、図３、図４に示すように、１方の波ブラシ１１の凸部２３に対して他方の波ブラシ１１を円周方向に凸、凹部ピッチＰだけずらした状態で軸線方向で４ヶ所で当接する４面合せとなっている。即ち、隣り合う波ブラシ１１のうち、先に主ブラシコア９に挿入した波ブラシ１１に対して次に挿入した波ブラシ１１を反対にして（裏返して）挿入し、先に挿入した波ブラシ１１の挿入方向に向けて凸となる凸部２３に、次に挿入した波ブラシ１１の挿入方向に向けて凹となる凹部２４が対向し、先に挿入した波ブラシ１１の挿入方向に向けて凹となる凹部２４に、次に挿入した波ブラシ１１の挿入方向に向けて凸となる凸部２３が当接するように順次波ブラシ１１が挿入されている。
【００１１】
主ブラシコア９の全長に渡って波ブラシ１１が挿入されると、左連結プレート１８にコア部材１３より半径方向に突出するバックプレート２６が固着されて波ブラシ１１が抜け止され、主ブラシ３が構成される（図１）。このように主ブラシ３は主ブラシコア９に複数の波ブラシ１１を挿入して構成されているので、主ブラシ３の交換時には、主ブラシコア９に新たな波ブラシ１１を単に挿入していけば良く、このとき、従来の技術に記載のように、主ブラシコア９を垂直に路面５上に立てた状態で、波ブラシ１１を次々に挿入して主ブラシ３を構成できるので交換が容易に行える。また、主ブラシ３は複数の波ブラシ１１から成るので、ブラシ素材２１の異なる波ブラシ１１を組み合わせて主ブラシ３を構成すれば色々な清掃対象物に対応可能である。例えば、路面清掃においては、一般的に路肩側に塵埃が多いため、左通行の場合、主ブラシ３の右側では樹脂製のブラシ素材２１を使用した波ブラシ１１を設け、主ブラシ３の左側では、ブラシ素材２１として鋼線を使用した波ブラシ１１と、樹脂製のブラシ素材２１を使用した波ブラシ１１とを組み合わせて設け、清掃能力を向上することができる。
【００１２】
次に、３面合わせの波ブラシ１１Ａから成る主ブラシ３を使用した場合の清掃車の清掃速度Ｖ３と、４面合わせの波ブラシ１１から成る主ブラシ３を使用した場合の清掃車の清掃速度Ｖ４について図５、図６により説明する。波ブラシ１１の凸部２３が路面５に接しているとき、波ブラシ１１の凸部２３の路面５に接している部分の回転方向後端Ａから次の凸部２３の回転方向先端Ｂまでの円周方向寸法をＬ１ｍｍ、後端Ａと次の先端Ｂの成す角度をθ°、波ブラシ１１の直径をＤｍｍとすると、円周方向寸法Ｌ１は下記の数式１で表わされる。
【数１】

次に、主ブラシ回転数をＮｒｐｍ、主ブラシ１１の周速をｖｍｍ／ｓとすると、
【数２】

である。次に、後端Ａに次の先端Ｂが来るまでの時間をｔ１秒とすると、
【数３】

である。次に、清掃車が清掃速度Ｖｋｍ／ｈで走行した場合の波ブラシ１１のパターン幅Ｌｍｍを通過する時間をｔ２秒とすると、
【数４】

である。また、清掃車がパターン幅Ｌｍｍを清掃速度Ｖｋｍ／ｈで進む間に凸部２３の路面５に接地している後端Ａの位置に次の凸部２３の先端Ｂがくれば、路上の塵埃の掃き残しを起こさないので、ｔ１＝ｔ２のとき塵埃掃残しの限界であり、数式３と数式４から、
【数５】

である。
【００１３】
３面合せの波ブラシ１１Ａと４面合わせの波ブラシ１１の直径Ｄと、回転数Ｎとが同じであり、懸吊アーム２Ｌ，２Ｒを調整し、３面合せの波ブラシ１１Ａから成る主ブラシ３の路面５に接地するパターン幅と４面合せの波ブラシ１１から成る主ブラシ３の路面５に接地するパターン幅とが同じパターン幅Ｌとなっており、３面合せの波ブラシ１１の凸部２３の路面５に接している部分の後端Ａ３と次の凸部２３の先端Ｂ３との成す角度θ＝θ３°、４面合せの波ブラシ１１の凸部２３の路面５に接している部分の後端Ａと次の凸部２３の先端Ｂとの成す角度θ＝θ４°とすると、３面合せの波ブラシ１１Ａを備えた清掃車の掃き残しを生じない清掃速度Ｖ３は数式５から
【数６】

であり、４面合せの波ブラシ１１を備えた清掃車の掃き残しを生じない清掃速度Ｖ４は数式５から
【数７】

である。清掃速度Ｖ３と清掃速度Ｖ４の比はＶ４／Ｖ３＝θ３／θ４であり、θ３＞θ４なのでθ３／θ４＞１であり、４面合せの波ブラシ１１を用いた主ブラシ装置１を備えた清掃車の方が、３面合せの波ブラシ１１Ａを用いた主ブラシ装置１を備えた清掃車より、清掃速度を速くすることができ、清掃能力が高くなることがわかる。尚、本願実施の形態では凸部と凹部が夫々４ヶ所のもので説明したが、凸部と凹部が夫々５ヶ所以上のものであっても良い。
【００１４】
【発明の効果】
以上のように本願発明によれば、コアパイプの両端部にプレートを設けると共にこれらのプレート間にコアパイプの軸線方向に沿って伸びる４本のコア部材を円周方向等間隔に架設して主ブラシコアを構成し、リング部材の合せ目部分をリング部材の内周に向けて突出する係合爪により接合すると共に、リング部材に軸線方向に向かう４ヶ所以上の凸部と凹部とそれらを連続する傾斜部とを夫々リング部材の円周方向に屈曲形成して波ブラシを構成し、波ブラシを主ブラシコアに挿入するとき、波ブラシの係合爪を何れか１つのコア部材に係合させると共に、隣り合う一方の波ブラシに対して他方の波ブラシを裏返して一方の波ブラシの凹部に他方の波ブラシの凸部を当接させ、円周方向において４ヶ所以上のブラシ素材が互いに角度をあけて路面に接地するようにしたので、波ブラシが４面合せ以上となり、従来の３面合せの波ブラシから主ブラシを構成したものに比べ、清掃車の清掃速度をより高速としても掃き残しがなく清掃能力が向上する。また、波ブラシを主ブラシコアに挿入するとき、波ブラシの係合爪を何れか１つのコア部材に係合させると共に、隣り合う一方の波ブラシに対して他方の波ブラシを裏返して一方の波ブラシの凹部に他方の波ブラシの凸部を当接させるようにしたので、ブラシ素材が摩耗した際等のブラシの交換が簡単である。また、ブラシ素材の異なる波ブラシを組み合わせて主ブラシコアに挿通して主ブラシを構成し、主ブラシの右側と左側のブラシ素材の材質を異ならせたので、清掃対象物に対応した清掃を行うことができる。
【図面の簡単な説明】
【図１】本願発明に係るリングブラシ式主ブラシ装置の側面図である。
【図２】波ブラシとコア部材の係合を示す説明図である。
【図３】波ブラシの主ブラシコアへの挿入を示す説明図である。
【図４】隣合う波ブラシの当接を示す円周方向全周の展開図である。
【図５】図１のＶ−Ｖ線断面図である。
【図６】３面合せ波ブラシを示す図である。
【符号の説明】
１リングブラシ式主ブラシ装置
９主ブラシコア
１１波ブラシ
２０リング部材
２１ブラシ素材
２３凸部
２４凹部
２５傾斜部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ring brush type main brush device for a road sweeper configured by inserting a plurality of wave brushes having convex portions and concave portions into a main brush core.
[0002]
[Prior art]
A conventional ring brush type main brush device of a road sweeper will be described with reference to FIG. 6, FIG. 1, FIG. 3, and FIG. First, the outline of a known main brush device will be described. As shown in FIG. 1, the main brush device 1 is composed of left and right suspension arms 2L and 2R and a main brush (sweeping brush) 3. One end of each of the left and right suspension arms 2L and 2R is pivotally attached to the rear part of the vehicle body 4 so as to be swingable in the vertical direction, and the pressing amount of the main brush 3 to the road surface 5 can be adjusted and is illustrated. The main brush 3 is moved to the cleaning position and the retracted position where the main brush 3 contacts the road surface 5 by the lifting mechanism that does not. In FIG. 1, a bearing means 6 is provided at the other end of the left suspension arm 2L, and a main brush drive means 8 having a hydraulic motor 7 as a drive motor is provided at the other end of the right suspension arm 2R. Is provided. Between the bearing means 6 and the main brush driving means 8, a brush shaft 10 inserted integrally with the main brush core 9 of the main brush 3 is rotatably supported, and the drive motor 7 is attached to one end of the brush shaft 10. The main brush 3 is connected and rotated in a direction to sweep up dust on the road surface 5 toward a conveyor (not shown) disposed in front of the main brush device 1.
[0003]
As the main brush 3, there is a conventional one using a three-sided wave brush (ring brush) 11A as shown in FIG. The main brush 3 is configured by inserting a plurality of three-sided wave brushes (ring brushes) 11 </ b> A around the outer periphery of the main brush core 9. A three-sided wave brush 11A will be described with reference to FIG. 6, FIG. 3, and FIG. The wave brush 11A is provided with a brush material (filament) 21 radially on the outer periphery of the ring member 20A, and the ring member 20A is bent in the ring member 20A and directed in the axial direction along the circumferential direction of the wave brush 11A. Thus, a convex portion 23A and a concave portion 24A are formed, and an inclined portion 25A that is continuous between the convex portion 23A and the concave portion 24A is formed. The convex portions 23A and the concave portions 24A are provided at three equal pitches along the circumferential direction of the wave brush 11A. When this wave brush 11A is inserted into the main brush core 9, the other wave brush 11A is protruded in the circumferential direction with respect to the protrusion 23A of one adjacent wave brush 11A, and is shifted by a pitch P between the recesses. In the axial direction, the concave and convex portions are inserted into the main brush core 9 so that they come into contact with each other back to back.
[0004]
As described above, the ring brush type main brush device 1 has the main brush 3 composed of the main brush core 9 and the wave brush 11A. For example, when the main brush 3 is configured, the main brush core 9 is placed vertically on the road surface 5. Since it can be assembled by inserting the wave brushes 11A one after another into the main brush core 9 in an upright state, no replacement device is required, and the main brush can be easily configured, so that the brush replacement Work is easy. In addition, since the main brush consists of a plurality of wave brushes, if the main brush is configured by combining wave brushes of different brush materials, a main brush corresponding to the object to be cleaned (road surface condition) can be configured, and the cleaning ability Can be increased.
[0005]
[Problems to be solved by the invention]
In the prior art, the wave brush has three surfaces, and the cleaning speed of the cleaning vehicle using the wave brush is as follows from the rear end of the convex portion (concave portion) that is in contact with the road surface of the wave brush. Since it is inversely proportional to the angle between the convex parts (angle between the concave parts) up to the tip of the convex part (concave part) and determined in proportion to the rotational speed of the main brush, the angle between the convex parts is large when the rotational speed of the main brush is constant. With the three-sided wave brush, the cleaning speed was slow.
The subject of this application is providing the ring brush type main brush apparatus of the road surface cleaning vehicle which can make the cleaning speed of a cleaning vehicle fast, without the conventional advantage.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, in the present invention, the ring member is bent, the convex portion, the inclined portion, and the concave portion are continuously formed in the axial direction along the circumferential direction of the ring member, and a brush material is formed on the ring member. provided constitutes a wave brush, by inserting a plurality of waves brush over the entire length of the main in a state where the convex portion of one another wave brush against the recess of the wave brush adjacent is set to be back to back brush core In the ring brush type main brush device of a road surface cleaning vehicle , a plate is provided at both ends of the core pipe, and four core members extending along the axial direction of the core pipe are installed between these plates at equal intervals in the circumferential direction. The main brush core is configured, and the joint portion of the ring member is joined by an engaging claw protruding toward the inner periphery of the ring member, and four or more convex portions extending in the axial direction on the ring member; When the wave brush is inserted into the main brush core when the wave brush is inserted into the main brush core, the wave brush engaging claw is set to any one of the cores. While engaging with the member, the other wave brush is turned over with respect to one adjacent wave brush, and the convex portion of the other wave brush is brought into contact with the concave portion of the one wave brush, and at least four locations in the circumferential direction. The brush material contacts the road surface at an angle to each other (claim 1). According to this, the angle between the convex parts or the angle between the concave parts formed by the convex part and the convex part or the concave part and the concave part becomes small, and the cleaning speed of the cleaning vehicle can be increased.
[0007]
Wave brushes of different brush materials are combined and inserted into the main brush core to form a main brush, and the material of the brush material on the right side and the left side of the main brush is made different (claim 2). According to this, a main brush can be comprised corresponding to a cleaning target object, and it is preferred.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to FIGS. A description of the same parts as those in the prior art will be omitted. A main brush core 9 of a main brush (sweeping brush) 3 rotatably supported by left and right suspension arms 2L and 2R by a drive motor 7 comprises a core pipe 12 and a core member 13, as shown in FIG. ing. The brush shaft 10 is penetrated through the core pipe 12 with a gap between the core pipe 12 and the outer periphery of the brush shaft 10. In FIG. 1, a drive plate 14 is fixed to the outer periphery on the right end side of the brush shaft 10. A plurality of torque transmission claws 16 having a substantially conical tip projecting in the brush axis direction are provided on the outer peripheral portion of the drive plate 14 at equal intervals in the circumferential direction. A driven plate 17 that engages with the torque transmission claw 16 is integrally welded to the right end of the core pipe 12, and a left connecting plate 18 is integrally welded to the left end side. Between the driven plate 17 and the left connecting plate 18, four core members 13 having a rectangular cross section extending along the axial direction of the brush shaft 10 are installed at equal intervals in the circumferential direction. The right end is connected by a right plate 19 that extends outward from the core member 13 in the radial direction of the main brush core 9.
[0009]
The plurality of wave brushes 11 that are sheathed on the outer periphery of the main brush core 9 are formed by radially planting brush materials 21 on long members that are long in the longitudinal direction and bending them to form ring members 20. As shown in FIG. 2, the brush material 21 is configured to be radial on the outer periphery of the ring member 20. A joint portion of the ring member 20 is joined to a plate (not shown) by an engaging claw 22. The engaging claw 22 is provided so as to protrude toward the inner periphery of the ring member 20, engages with any of the core members 13, and transmits torque to the wave brush 11. 3 and FIG. 4, the ring member 20 is bent and formed with four convex portions 23 and concave portions 24, and adjacent convex portions 23, respectively. Inclined portions 25 that are continuous with the concave portions 24 are provided at equal pitches P1 in the circumferential direction of the wave brush 11. When the wave brush 11 is inserted into the main brush core 9, the engagement claw 22 is engaged with any one of the core members 13, and the wave brush 11 to be inserted next is shifted 90 degrees from the previous wave brush 11. The wave brush 11 is sequentially shifted by 90 degrees so that the engagement claw 22 is engaged with the core member 13 that is 90 degrees out of phase with the core member 13 with which the engagement claw 22 of the tip of the wave brush 11 is engaged. Exterior to the brush core 9. This will be described with reference to FIG. 2. First, the engaging claw 22 is engaged with the core member 13a, the engaging claw 22 of the next wave brush 11 is engaged with the core member 13b, and the next wave brush 11 is engaged. The claw 22 is engaged with the core member 13c, the engagement claw 22 of the next wave brush 11 is further engaged with the core member 13d, and the subsequent engagement claw 22 of the wave brush 11 is also the core members 13a, 13b, 13c. , 13d sequentially.
[0010]
Further, as shown in FIGS. 3 and 4, the adjacent wave brushes 11 protrude in the circumferential direction with respect to the convex portion 23 of one of the wave brushes 11, and only the concave pitch P is present. The four surfaces are in contact with each other at four positions in the axial direction in a shifted state. That is, among the adjacent wave brushes 11, the wave brush 11 inserted next to the wave brush 11 previously inserted into the main brush core 9 is inserted oppositely (turned over), and the wave brush 11 inserted earlier is inserted. A concave portion 24 that is concave toward the insertion direction of the next wave brush 11 is opposed to the convex portion 23 that is convex toward the insertion direction, and the concave portion 24 is concave toward the insertion direction of the wave brush 11 previously inserted. The wave brushes 11 are sequentially inserted so that the convex portions 23 that are convex toward the insertion direction of the wave brush 11 inserted next come into contact with the concave portions 24.
[0011]
When the wave brush 11 is inserted over the entire length of the main brush core 9, the back plate 26 protruding in the radial direction from the core member 13 is fixed to the left connecting plate 18, and the wave brush 11 is prevented from coming off. Configured (FIG. 1). As described above, the main brush 3 is configured by inserting a plurality of wave brushes 11 into the main brush core 9. Therefore, when the main brush 3 is replaced, a new wave brush 11 may be simply inserted into the main brush core 9. At this time, as described in the prior art, the main brush 3 can be constructed by inserting the wave brushes 11 one after another in a state where the main brush core 9 stands vertically on the road surface 5, so that the replacement can be easily performed. In addition, since the main brush 3 is composed of a plurality of wave brushes 11, if the main brush 3 is configured by combining the wave brushes 11 having different brush materials 21, various types of cleaning objects can be handled. For example, in road surface cleaning, since there is generally much dust on the shoulder side, in the case of left-hand traffic, a wave brush 11 using a resin brush material 21 is provided on the right side of the main brush 3, and on the left side of the main brush 3. The wave brush 11 using the steel wire as the brush material 21 and the wave brush 11 using the resin brush material 21 are provided in combination to improve the cleaning ability.
[0012]
Next, the cleaning speed V3 of the cleaning car when the main brush 3 consisting of the three-surface wave brush 11A is used, and the cleaning speed of the cleaning car when the main brush 3 consisting of the four-surface wave brush 11 is used. V4 will be described with reference to FIGS. When the convex portion 23 of the wave brush 11 is in contact with the road surface 5, the rotation direction rear end A of the portion of the convex portion 23 of the wave brush 11 that is in contact with the road surface 5 to the rotational direction front end B of the next convex portion 23. Assuming that the circumferential dimension is L1 mm, the angle between the rear end A and the next leading end B is θ °, and the diameter of the wave brush 11 is Dmm, the circumferential dimension L1 is expressed by the following Equation 1.
[Expression 1]

Next, assuming that the main brush rotation speed is N rpm and the peripheral speed of the main brush 11 is vmm / s,
[Expression 2]

It is. Next, assuming that the time until the next tip B comes to the rear end A is t1 seconds,
[Equation 3]

It is. Next, if the time for passing the pattern width Lmm of the wave brush 11 when the cleaning vehicle travels at the cleaning speed Vkm / h is t2 seconds,
[Expression 4]

It is. Further, if the tip B of the next convex portion 23 comes to the position of the rear end A that is in contact with the road surface 5 of the convex portion 23 while the cleaning vehicle advances the pattern width Lmm at the cleaning speed Vkm / h, the dust on the road Therefore, when t1 = t2, it is the limit of dust scavenging. From Equation 3 and Equation 4,
[Equation 5]

It is.
[0013]
The main brush composed of the three-surface wave brush 11A having the same diameter D and the same rotation speed N as the three-surface wave brush 11A and the four-surface wave brush 11 and adjusting the suspension arms 2L and 2R. The pattern width to be grounded to the road surface 5 of 3 and the pattern width to be grounded to the road surface 5 of the main brush 3 composed of the four-surface wave brushes 11 are the same pattern width L, and the convexity of the three-surface wave brushes 11 The angle θ between the rear end A3 of the portion 23 in contact with the road surface 5 and the tip B3 of the next convex portion 23 is in contact with the road surface 5 of the convex portion 23 of the four-sided wave brush 11. Assuming that the angle θ between the rear end A of the portion and the front end B of the next convex portion 23 is θ = θ4 °, the cleaning speed V3 that does not cause uncleaning of the cleaning vehicle equipped with the three-surface wave brush 11A is [Formula 6]

The cleaning speed V4 that does not cause uncleaning of the cleaning vehicle equipped with the four-sided wave brush 11 can be calculated from Equation 5:

It is. The ratio of the cleaning speed V3 and the cleaning speed V4 is V4 / V3 = θ3 / θ4, and θ3> θ4, so that θ3 / θ4> 1, and the cleaning provided with the main brush device 1 using the wave brush 11 having four faces. It can be seen that the cleaning speed of the car can be increased and the cleaning ability is higher than that of the cleaning car provided with the main brush device 1 using the three-sided wave brush 11A. In the embodiment of the present application, four convex portions and four concave portions are described, but five or more convex portions and concave portions may be used.
[0014]
【The invention's effect】
As described above, according to the present invention, plates are provided at both ends of the core pipe, and four core members extending along the axial direction of the core pipe are installed between these plates at equal intervals in the circumferential direction. Construct and join the joint part of the ring member with an engaging claw protruding toward the inner periphery of the ring member, and at least four convex parts and concave parts in the axial direction to the ring member, and an inclined part connecting them continuously Are bent in the circumferential direction of the ring member to constitute a wave brush, and when the wave brush is inserted into the main brush core, the engaging claws of the wave brush are engaged with any one of the core members and adjacent to each other. The other wave brush is turned over with respect to one wave brush, and the convex part of the other wave brush is brought into contact with the concave part of the one wave brush, so that four or more brush materials make an angle with each other in the circumferential direction. Since so as to contact with the road surface, it becomes wave brush four faces together over, compared to that constituting the main brush from the wave brush conventional 3 a mate, without leaving sweep even faster cleaning rate of sweeper The cleaning ability is improved. Further, when inserting the wave brush into the main brush core, the engaging claws of the wave brush are engaged with any one of the core members, and the other wave brush is turned over with respect to one adjacent wave brush. Since the convex portion of the other wave brush is brought into contact with the concave portion of the brush, it is easy to replace the brush when the brush material is worn. In addition, wave brushes with different brush materials are combined and inserted into the main brush core to form the main brush, and the material of the brush material on the right and left sides of the main brush is made different so that cleaning corresponding to the object to be cleaned is performed. Can do.
[Brief description of the drawings]
FIG. 1 is a side view of a ring brush type main brush device according to the present invention.
FIG. 2 is an explanatory view showing engagement between a wave brush and a core member.
FIG. 3 is an explanatory view showing insertion of a wave brush into a main brush core.
FIG. 4 is a developed view of the entire circumference in the circumferential direction showing contact between adjacent wave brushes.
FIG. 5 is a cross-sectional view taken along line VV in FIG.
FIG. 6 is a diagram showing a three-sided wave brush.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ring brush type main brush apparatus 9 Main brush core 11 Wave brush 20 Ring member 21 Brush material 23 Convex part 24 Concave part 25 Inclined part

Claims

A ring member is bent to continuously form a convex portion, an inclined portion, and a concave portion along the circumferential direction of the ring member in the axial direction, and a brush material is provided on the ring member to form a wave brush. one other of the wave brush projections become way road sweeper ring brush main formed by inserting a plurality of waves brush over the entire length of the main brush core state back to back with respect to the concave portion of the wave brush fit In the brush device, a plate is provided at both ends of the core pipe, and four core members extending along the axial direction of the core pipe are laid between these plates at equal intervals in the circumferential direction to form a main brush core. The joint portion is joined by an engaging claw projecting toward the inner periphery of the ring member, and at least four convex portions and concave portions extending in the axial direction on the ring member, and an inclined portion connecting them are provided. The ring member is bent in the circumferential direction to form a wave brush, and when the wave brush is inserted into the main brush core, the engaging claw of the wave brush is engaged with any one core member and The other wave brush is turned over with respect to the other wave brush, and the convex part of the other wave brush is brought into contact with the concave part of one of the wave brushes. A ring brush type main brush device for a road sweeper characterized by being grounded .

The road cleaning vehicle according to claim 1, wherein wave brushes of different brush materials are combined and inserted into the main brush core to form a main brush, and the material of the brush material on the right side and the left side of the main brush is made different . Ring brush type main brush device.