JPH08105012A - Vibrating device for screed - Google Patents
Vibrating device for screedInfo
- Publication number
- JPH08105012A JPH08105012A JP24316594A JP24316594A JPH08105012A JP H08105012 A JPH08105012 A JP H08105012A JP 24316594 A JP24316594 A JP 24316594A JP 24316594 A JP24316594 A JP 24316594A JP H08105012 A JPH08105012 A JP H08105012A
- Authority
- JP
- Japan
- Prior art keywords
- driven
- screed
- eccentric weight
- shaft
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Road Paving Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はアスファルトフィニッシ
ャ等の走行機体の後部に牽引されるスクリードの振動装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating device for a screed that is pulled to the rear of a traveling machine body such as an asphalt finisher.
【０００２】[0002]
【従来の技術】アスファルトフィニッシャ等の走行機体
の後部に牽引されるスクリードに、締め固め能率を向上
させるために振動装置を設けることは知られている。従
来の此種振動装置は、回転軸に偏心おもりを取り付けて
該回転軸を回転させることにより、スクリードの接地部
に対して上下振動及び前後振動を与えるようにしてあ
る。2. Description of the Related Art It is known to provide a screed, such as an asphalt finisher, which is pulled at the rear of a traveling machine body with a vibrating device in order to improve compaction efficiency. In the conventional vibration device of this kind, an eccentric weight is attached to a rotary shaft and the rotary shaft is rotated to give vertical vibration and longitudinal vibration to the ground portion of the screed.
【０００３】[0003]
【発明が解決しようとする課題】従来のスクリードの振
動装置は接地部に対して上下及び前後に振動を与えてい
るが、このうち上下振動は地盤を通じて周辺の施設や住
宅地へ伝翻するため、騒音及び振動の公害を与えること
が多い。The conventional screed vibration device vibrates up and down and back and forth with respect to the ground contact portion. Of these vibrations, the up and down vibrations are transmitted to surrounding facilities and residential areas through the ground. , Often cause noise and vibration pollution.
【０００４】そこで、スクリードの締め固め能率を低下
させることなく、且つ、施工現場近隣への騒音及び振動
を低減する一方、施工現場近隣の環境によっては、締め
固め力の強い振動を与えて作業能力を向上するために解
決すべき技術的課題が生じてくるのであり、本発明はこ
の課題を解決することを目的とする。Therefore, noise and vibration to the vicinity of the construction site are reduced without lowering the compaction efficiency of the screed, while depending on the environment near the construction site, strong vibration of the compaction force is applied to provide work ability. Therefore, a technical problem to be solved in order to improve the above arises, and an object of the present invention is to solve this problem.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために提案されたものであり、アスファルトフィニ
ッシャ等の走行機体の後部に牽引されるスクリードの振
動装置に於いて、スクリードの水平方向へ駆動軸と従動
軸を平行且つ同一高さに枢着し、該駆動軸へ駆動ギヤを
嵌着するとともに、駆動ギヤと同一歯数の従動ギヤを前
記従動軸へ嵌着して双方のギヤを噛合させ、該駆動軸或
いは駆動ギヤに第１の偏心おもりを駆動軸心から所定距
離に固設するとともに、従動軸或いは従動ギヤに該第１
の偏心おもりと同一質量の第２の偏心おもりを従動軸心
から前記所定距離と同一距離に固設し、且つ、該第１の
偏心おもりが駆動軸心の鉛直下方に位置するときに、第
２の偏心おもりが従動軸心の鉛直上方に位置するように
したスクリードの振動装置、及びアスファルトフィニッ
シャ等の走行機体の後部に牽引されるスクリードの振動
装置に於いて、スクリードの水平方向へ駆動軸を枢着
し、該駆動軸の両側には該駆動軸と直交する直線上で且
つ同一高さに夫々第１の従動軸及び第２の従動軸を対峙
して設け、前記駆動軸に駆動ベベルギヤを嵌着し、第１
の従動軸及び第２の従動軸に夫々同一歯数の第１の従動
ベベルギヤ及び第２の従動ベベルギヤを嵌着するととも
に、第１及び第２の従動ベベルギヤを前記駆動ベベルギ
ヤに噛合させ、更に、前記第１の従動軸或いは第１の従
動ベベルギヤに第１の偏心おもりを第１の従動軸心から
所定距離に固設するとともに、第２の従動軸或いは第２
の従動ベベルギヤに該第１の偏心おもりと同一質量の第
２の偏心おもりを第２の軸心から前記所定距離と同一距
離に固設し、且つ、該第１の偏心おもりが第１の従動軸
心の鉛直下方に位置するときに、第２の偏心おもりが第
２の従動軸心の鉛直上方に位置するようにしたスクリー
ドの振動装置、及び前記第１または第２の何れか一方の
偏心おもりを、該一方の軸心を中心に１８０度ずらした
位置へ移動自在にしたスクリードの振動装置、及び前記
駆動ギヤと従動ギヤの噛合位置を、何れか一方のギヤの
軸心を中心にして該一方のギヤを１８０度回転した位置
にしたスクリードの振動装置、並びに前記駆動ベベルギ
ヤと第１または第２の従動ベベルギヤの噛合位置を、第
１または第２の何れか一方の従動ベベルギヤの軸心を中
心にして該一方の従動ベベルギヤを１８０度回転した位
置にしたスクリードの振動装置を提供するものである。DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above object, and in a vibrating device for a screed towed to the rear part of a traveling machine body such as an asphalt finisher, the screed's horizontal direction. A drive shaft and a driven shaft in parallel and at the same height, and a drive gear is fitted to the drive shaft, and a driven gear having the same number of teeth as the drive gear is fitted to the driven shaft. And a first eccentric weight is fixed to the drive shaft or the drive gear at a predetermined distance from the drive shaft center, and the first eccentric weight is attached to the driven shaft or the driven gear.
A second eccentric weight having the same mass as that of the eccentric weight is fixed at the same distance as the predetermined distance from the driven shaft center, and when the first eccentric weight is positioned vertically below the drive shaft center, In a screed vibrating device in which the eccentric weight 2 is positioned vertically above the driven shaft center, and in a screed vibrating device towed to the rear portion of the traveling machine body such as an asphalt finisher, the screed drive shaft is driven horizontally. And a first driven shaft and a second driven shaft are provided on opposite sides of the drive shaft on a straight line orthogonal to the drive shaft and at the same height, and the drive bevel gear is attached to the drive shaft. Fit in the first
The first driven bevel gear and the second driven bevel gear having the same number of teeth are fitted to the driven shaft and the second driven shaft, respectively, and the first and second driven bevel gears are meshed with the drive bevel gear, and A first eccentric weight is fixed to the first driven shaft or the first driven bevel gear at a predetermined distance from the first driven shaft center, and a second driven shaft or a second driven shaft is provided.
A second eccentric weight having the same mass as that of the first eccentric weight is fixed to the driven bevel gear of the second eccentric weight at the same distance as the predetermined distance from the second shaft center, and the first eccentric weight is driven by the first driven wheel. A screed vibrating device in which the second eccentric weight is positioned vertically above the second driven shaft when positioned vertically below the shaft, and either one of the first and second eccentrics. The screed vibrating device in which the weight is movable to a position shifted by 180 degrees about the shaft center of the one side, and the meshing position of the drive gear and the driven gear with the shaft center of one of the gears as the center. The screed vibrating device in which one of the gears is rotated by 180 degrees, and the meshing position of the drive bevel gear and the first or second driven bevel gear with the shaft center of either one of the first and second driven bevel gears. Centering on one of the There is provided a vibrating device of the screed in which the dynamic bevel gear at a position rotated 180 degrees.
【０００６】[0006]
【作用】第１の偏心おもりと第２の偏心おもりは、夫々
の軸心を中心に反対方向へ回転する。例えば、何れか一
方の偏心おもりが軸心の鉛直下方位置に至ったときには
他方の偏心おもりが軸心の鉛直上方位置に至り、双方の
偏心おもりの遠心力は相殺される。The first eccentric weight and the second eccentric weight rotate in opposite directions about their respective axes. For example, when one of the eccentric weights reaches a position vertically below the shaft center, the other eccentric weight reaches a position vertically above the shaft center, and the centrifugal forces of both eccentric weights cancel each other out.
【０００７】そして、前記一方の偏心おもりが軸心の左
側部位に至ったときには他方の偏心おもりも軸心の左側
部位に至り、夫々の遠心力の垂直成分は同じ大きさで且
つ反対方向であるので相殺され、夫々の水平成分がとも
に左方向へ作用する。また、前記一方の偏心おもりが軸
心の右側部位に至ったときには他方の偏心おもりも軸心
の右側部位に至り、夫々の遠心力の垂直成分は相殺さ
れ、夫々の水平成分がともに右方向へ作用する。When one of the eccentric weights reaches the left side portion of the shaft center, the other eccentric weight also reaches the left side portion of the shaft center, and the vertical components of the centrifugal forces have the same magnitude but in opposite directions. Therefore, each horizontal component acts in the left direction together. Further, when one of the eccentric weights reaches the right side portion of the shaft center, the other eccentric weight also reaches the right side portion of the shaft center, the vertical components of the centrifugal forces are canceled out, and the respective horizontal components move to the right. To work.
【０００８】斯くして、前記第１及び第２の偏心おもり
が何れの位置にあっても、双方の遠心力の垂直成分は常
に相殺され、水平成分のみが左右同一方向へ作用するた
め、スクリードには水平方向の振動が発生することにな
る。ここで、前記第１または第２の何れか一方の偏心お
もりを、一方の軸心を中心に１８０度ずらした場合に
は、前述とは逆に双方の偏心おもりの遠心力のうち水平
成分が常に相殺され、垂直成分のみが同一方向へ作用す
るため、スクリードには垂直方向の振動が発生する。Thus, regardless of the position of the first and second eccentric weights, the vertical components of both centrifugal forces are always canceled out, and only the horizontal component acts in the same left and right direction. Will cause horizontal vibration. Here, when the one of the first and second eccentric weights is shifted by 180 degrees about one axis, the horizontal component of the centrifugal force of both eccentric weights is opposite to the above. Since they are always canceled and only the vertical component acts in the same direction, vertical vibration is generated in the screed.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図面に従って詳述
する。図１はアスファルトフィニッシャ１１を示したも
のであり、走行機体１２の後部にスクリード１３が牽引
されている。該スクリード１３はレベリングアーム１４
の回動によって接地角が変化する。An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an asphalt finisher 11, in which a screed 13 is towed to the rear part of a traveling body 12. The screed 13 is a leveling arm 14
The rotation angle changes the ground contact angle.
【００１０】図２は請求項１記載の発明の振動装置を装
着したスクリード１３の平面図であり、フロントスクリ
ード１３ａの後部左右にはリヤスクリード１３ｂ及び１
３ｃが左右方向へスライド自在に取り付けられており、
舗装幅に対応してスクリード１３を拡幅できるように形
成されている。フロントスクリード１３ａ及びリヤスク
リード１３ｂ，１３ｃには夫々振動装置１５ａ，１５
ｂ，１５ｃを装着してある。FIG. 2 is a plan view of the screed 13 to which the vibrating device according to the first aspect of the present invention is attached. Rear screeds 13b and 1 are provided on the left and right rear portions of the front screed 13a.
3c is attached to the left and right slidable,
It is formed so that the screed 13 can be widened according to the pavement width. The front screed 13a and the rear screeds 13b and 13c respectively have vibrating devices 15a and 15c.
b and 15c are attached.
【００１１】ここで、フロントスクリード１３ａに装着
した振動装置１５ａについて説明すれば、フロントスク
リード１３ａの水平左右方向へ駆動軸１６ａと従動軸１
７ａを平行且つ同一高さに枢着し、駆動軸１６ａに油圧
モータ１８ａを接続する。更に、該駆動軸１６ａに駆動
ギヤ１９ａを嵌着するとともに、駆動ギヤ１９ａと同一
歯数の従動ギヤ２０ａを前記従動軸１７ａへ嵌着して双
方のギヤを噛合させる。The vibrating device 15a mounted on the front screed 13a will now be described. The drive shaft 16a and the driven shaft 1 are arranged in the horizontal left-right direction of the front screed 13a.
7a are pivoted in parallel and at the same height, and a hydraulic motor 18a is connected to the drive shaft 16a. Further, a drive gear 19a is fitted on the drive shaft 16a, and a driven gear 20a having the same number of teeth as the drive gear 19a is fitted on the driven shaft 17a so that both gears mesh with each other.
【００１２】また、図２及び図３に示すように、駆動軸
１６ａの軸心Ｏ1 の鉛直下方位置に第１の偏心おもり２
１ａをボルト２２ａにて固設し、従動軸１７ａの軸心Ｏ
2 の鉛直上方位置に第２の偏心おもり２３ａをボルト２
４ａにて固設する。該第１の偏心おもり２１ａと第２の
偏心おもり２３ａの双方の質量ｍ1 ，ｍ2 は同一であ
り、且つ、双方の重心Ｇ1 ，Ｇ2 は軸心Ｏ1 ，Ｏ2 から
夫々同一の所定距離ｒの位置にある。Further, as shown in FIGS. 2 and 3, the first eccentric weight 2 is provided at a position vertically below the axis O 1 of the drive shaft 16a.
1a is fixed by a bolt 22a, and the center O of the driven shaft 17a is O.
2 Install the second eccentric weight 23a at the vertically upper position of the bolt 2
Fix at 4a. The masses m 1 and m 2 of both the first eccentric weight 21a and the second eccentric weight 23a are the same, and the centers of gravity G 1 and G 2 of both are the same from the axis O 1 and O 2 , respectively. It is located at a predetermined distance r.
【００１３】尚、本実施例に於いては、第１及び第２の
偏心おもり２１ａ，２３ａを駆動軸１６ａ及び従動軸１
７ａに固設してあるが、軸心Ｏ1 ，Ｏ2 から夫々同一の
距離であれば、第１及び第２の偏心おもりを駆動ギヤ１
９ａ及び従動ギヤ２０ａの側面部へ固設してもよい。或
いは、駆動軸１６ａと従動軸１７ａ、並びに駆動ギヤ１
９ａと従動ギヤ２０ａの双方に夫々第１及び第２の偏心
おもりを固設してもよい。In this embodiment, the first and second eccentric weights 21a and 23a are connected to the drive shaft 16a and the driven shaft 1.
7a, the first and second eccentric weights are attached to the drive gear 1 as long as they are the same distance from the shaft centers O 1 and O 2 , respectively.
9a and the side surface of the driven gear 20a may be fixed. Alternatively, the drive shaft 16a, the driven shaft 17a, and the drive gear 1
The first and second eccentric weights may be fixed to both 9a and the driven gear 20a.
【００１４】而して、前記油圧モータ１８ａを駆動して
駆動軸１６ａを回転すれば、駆動ギヤ１９ａと従動ギヤ
２０ａとの噛合により従動軸１７ａは駆動軸１６ａと反
対方向へ回転する。例えば図３に示すように、駆動軸１
６ａ及び駆動ギヤ１９ａが時計方向へ回転し、従動軸１
７ａ及び従動ギヤ２０ａが反時計方向へ回転するとき
は、第１の偏心おもり２１ａは軸心Ｏ1 の鉛直下方位置
から図４（ａ）に示すように軸心Ｏ1 の左側部位へ移動
し、第２の偏心おもり２３ａは軸心Ｏ2 の鉛直上方位置
から軸心Ｏ2 の左側部位へ移動する。When the hydraulic motor 18a is driven to rotate the drive shaft 16a, the driven shaft 17a rotates in the direction opposite to the drive shaft 16a due to the engagement between the drive gear 19a and the driven gear 20a. For example, as shown in FIG.
6a and the drive gear 19a rotate clockwise, and the driven shaft 1
When 7a and the driven gear 20a rotates in the counterclockwise direction, the first eccentric weight 21a moves from the vertical position below the axis O 1 to the left part of the axis O 1 as shown in FIG. 4 (a) , the second eccentric weight 23a moves from the vertical position above the axis O 2 to the left part of the axis O 2.
【００１５】然るときに、第１の偏心おもり２１ａの遠
心力ＦC1の垂直成分Ｆy1と、第２の偏心おもり２３ａの
遠心力ＦC2の垂直成分Ｆy2とは、同じ大きさで且つ反対
方向であるので相殺され、夫々の水平成分Ｆx1とＦx2が
ともに左方向へ作用する。そして、図４（ｂ）に示すよ
うに、第１の偏心おもり２１ａが軸心Ｏ1 の左横位置に
至ったときは、第２の偏心おもり２３ａも軸心Ｏ2 の左
横位置に至り、このとき双方の遠心力ＦC1及びＦC2は水
平左方向へ作用する。At that time, the vertical component F y1 of the centrifugal force F C1 of the first eccentric weight 21 a and the vertical component F y2 of the centrifugal force F C2 of the second eccentric weight 23 a have the same magnitude and Since they are in the opposite directions, they cancel each other out, and the respective horizontal components F x1 and F x2 both act to the left. Then, as shown in FIG. 4B, when the first eccentric weight 21a reaches the left lateral position of the shaft center O 1 , the second eccentric weight 23a also reaches the left lateral position of the shaft center O 2. At this time, both centrifugal forces F C1 and F C2 act in the horizontal left direction.
【００１６】次に、図４（ｃ）に示すように、第１の偏
心おもり２１ａが軸心Ｏ1 の鉛直上方位置に至ったとき
は、第２の偏心おもり２３ａが軸心Ｏ2 の鉛直下方位置
に至り、このとき第１の偏心おもり２１ａの遠心力ＦC1
は垂直上方向へ作用し、第２の偏心おもり２３ａの遠心
力ＦC2は垂直下方向へ作用するため、双方の遠心力Ｆ C1
及びＦC2とが相殺される。Next, as shown in FIG. 4 (c), the first bias
The heart weight 21a is the axis O1When the vertical position above is reached
The second eccentric weight 23a has an axis O2Vertically downward position
The centrifugal force F of the first eccentric weight 21a at this time.C1
Acts vertically upward and the second eccentric weight 23a is centrifuged.
Force FC2Acts vertically downward, the centrifugal force F of both C1
And FC2And are offset.
【００１７】そして、図５（ａ）に示すように、第１の
偏心おもり２１ａが軸心Ｏ1 の右側部位に至ったとき
は、第２の偏心おもり２３ａも軸心Ｏ2 の右側部位に至
る。然るときに、第１の偏心おもり２１ａの遠心力ＦC1
の垂直成分Ｆy1と、第２の偏心おもり２３ａの遠心力Ｆ
C2の垂直成分Ｆy2とは、同じ大きさで且つ反対方向であ
るので相殺され、夫々の水平成分Ｆx1とＦx2がともに右
方向へ作用する。As shown in FIG. 5 (a), when the first eccentric weight 21a reaches the right side portion of the shaft center O 1 , the second eccentric weight 23a also moves to the right side portion of the shaft center O 2. Reach At that time, the centrifugal force F C1 of the first eccentric weight 21a
Vertical component F y1 and the centrifugal force F of the second eccentric weight 23 a
Since the vertical component F y2 of C2 has the same magnitude and is in the opposite direction, it is canceled and both horizontal components F x1 and F x2 act in the right direction.
【００１８】次に、図５（ｂ）に示すように、第１の偏
心おもり２１ａが軸心Ｏ1 の右横位置に至ったときは、
第２の偏心おもり２３ａも軸心Ｏ2 の右横位置に至り、
このとき双方の遠心力ＦC1及びＦC2は水平右方向へ作用
する。更に、図５（ｃ）に示すように、第１の偏心おも
り２１ａが軸心Ｏ1 の鉛直下方位置に至ったときは、第
２の偏心おもり２３ａが軸心Ｏ2 の鉛直上方位置に至
り、このとき第１の偏心おもり２１ａの遠心力ＦC1は垂
直下方向へ作用し、第２の偏心おもり２３ａの遠心力Ｆ
C2は垂直上方向へ作用するため、双方の遠心力Ｆ C1及び
ＦC2とが相殺される。Next, as shown in FIG.
The heart weight 21a is the axis O1When you reach the right side of
The second eccentric weight 23a also has an axis O2To the right lateral position of
At this time, centrifugal force F of both sidesC1And FC2Acts horizontally to the right
I do. Furthermore, as shown in FIG. 5 (c), the first eccentric
21a is the axis O1When you reach the position vertically below the
The eccentric weight 23a of 2 is the axis O2Up to the vertical position of
At this time, the centrifugal force F of the first eccentric weight 21aC1Is hanging
The centrifugal force F acting on the second eccentric weight 23a acts directly below.
C2Acts vertically upward, so that the centrifugal force F C1as well as
FC2And are offset.
【００１９】このように、該第１及び第２の偏心おもり
２１ａ，２３ａが何れの位置にあっても、双方の遠心力
の垂直成分は常に相殺され、水平成分のみが左右同一方
向へ作用するため、前記フロントスクリード１３ａには
走行機体１２の前後方向へ水平振動が発生することにな
る。In this way, regardless of the position of the first and second eccentric weights 21a and 23a, the vertical components of both centrifugal forces are always canceled out, and only the horizontal component acts in the same horizontal direction. Therefore, horizontal vibration is generated in the front screed 13a in the front-back direction of the traveling machine body 12.
【００２０】尚、図２に示すように、左右のリヤスクリ
ード１３ｂ，１３ｃに装着した振動装置１５ｂ，１５ｃ
も前記フロントスクリード１３ａの振動装置１５ａと同
様に構成されており、油圧モータ１８ｂ，１８ｃを駆動
することによって左右のリヤスクリード１３ｂ，１３ｃ
にも水平前後方向の振動が発生する。また、図示は省略
するが、駆動軸と従動軸をスクリードの水平前後方向に
枢着して振動装置を構成してもよい。この場合には、該
スクリードには水平左右方向の振動が発生する。As shown in FIG. 2, vibrating devices 15b and 15c mounted on the left and right rear screeds 13b and 13c.
Is also configured similarly to the vibration device 15a of the front screed 13a, and the left and right rear screeds 13b and 13c are driven by driving hydraulic motors 18b and 18c.
Also, horizontal horizontal vibration occurs. Although not shown, the drive shaft and the driven shaft may be pivotally mounted in the horizontal front-rear direction of the screed to constitute the vibration device. In this case, horizontal and horizontal vibrations are generated in the screed.
【００２１】斯くして、スクリード１３の各接地部がア
スファルト材を水平方向へ揺動するように運動し、ヘア
クラックの発生を起こすことなくアスファルト材が締め
固められる。そして、地盤には水平振動のみが与えられ
るが、該水平振動は上下振動に比較して地盤の振動減衰
率が大であるため、作業環境が向上するとともに近隣地
域へ騒音及び振動の公害を与える虞が少ない。Thus, the ground contact portions of the screed 13 move so as to swing the asphalt material in the horizontal direction, and the asphalt material is compacted without causing hair cracks. Then, only horizontal vibration is applied to the ground, but the horizontal vibration has a large vibration damping ratio of the ground compared with vertical vibration, so that the working environment is improved and noise and vibration pollution is given to neighboring areas. There is little fear.
【００２２】ここで、図３に示したように、第１及び第
２の偏心おもり２１ａ，２３ａは夫々ボルト２２ａ，２
４ａを取り外すことにより、軸心Ｏ1 ，Ｏ2 を中心に１
８０度ずらした位置へ移動自在である。従って、第１及
び第２の偏心おもり２１ａ，２３ａの双方を鉛直上方位
置または鉛直下方位置に固設することが可能である。Here, as shown in FIG. 3, the first and second eccentric weights 21a and 23a are bolts 22a and 2 respectively.
By removing the 4a, 1 around the axis O 1, O 2
It can be moved to a position shifted by 80 degrees. Therefore, it is possible to fix both the first and second eccentric weights 21a and 23a at the vertically upper position or the vertically lower position.
【００２３】例えば、図６に示すように、第２の偏心お
もり２３ａを軸心Ｏ2 を中心に１８０度ずらした位置へ
固定して駆動軸１６ａを回転すれば、図７（ａ）に示す
ように、第１の偏心おもり２１ａは軸心Ｏ1 の左側部位
へ移動し、第２の偏心おもり２３ａは軸心Ｏ2 の右側部
位へ移動する。For example, as shown in FIG. 6, if the second eccentric weight 23a is fixed at a position shifted by 180 degrees about the axis O 2 and the drive shaft 16a is rotated, the result is shown in FIG. 7 (a). Thus, the first eccentric weight 21a moves to the left side portion of the shaft center O 1 , and the second eccentric weight 23a moves to the right side portion of the shaft center O 2 .
【００２４】然るときは、第１の偏心おもり２１ａの遠
心力ＦC1の水平成分Ｆx1と、第２の偏心おもり２３ａの
遠心力ＦC2の水平成分Ｆx2とが相殺され、夫々の垂直成
分Ｆ y1とＦy2がともに下方向へ作用する。以下、図７
（ｂ）乃至（ｃ）並びに図８（ａ）乃至（ｃ）に示すよ
うに、第１の偏心おもり２１ａが軸心Ｏ1 の左側部位に
あるときには第２の偏心おもり２３ａが軸心Ｏ2 の右側
部位にあり、該第１の偏心おもり２１ａが軸心Ｏ1 の右
側部位に至ったときには第２の偏心おもり２３ａが軸心
Ｏ2 の左側部位に至る。また、第１の偏心おもり２１ａ
が鉛直上方位置または鉛直下方位置に至ったときは第２
の偏心おもり２３ａも鉛直同一方向位置に至る。In that case, the distance of the first eccentric weight 21a is increased.
Mind FC1Horizontal component F ofx1And of the second eccentric weight 23a
Centrifugal force FC2Horizontal component F ofx2Are offset by each
Minute F y1And Fy2Both act downward. Below, FIG.
As shown in (b) to (c) and FIGS. 8 (a) to (c).
The first eccentric weight 21a has an axis O1On the left side of
In some cases, the second eccentric weight 23a may have an axis O.2Right side of
And the first eccentric weight 21a is located1Right of
When it reaches the side portion, the second eccentric weight 23a is the axial center.
O2To the left side of. In addition, the first eccentric weight 21a
When it reaches the vertically upper position or the vertically lower position,
The eccentric weight 23a also reaches the position in the same vertical direction.
【００２５】従って、該第１及び第２の偏心おもり２１
ａ，２３ａが何れの位置にあっても、双方の遠心力の水
平成分は常に相殺され、垂直成分のみが鉛直同一方向へ
作用するため、前記フロントスクリード１３ａには垂直
方向の振動が発生することになる。Therefore, the first and second eccentric weights 21
Regardless of the positions of a and 23a, the horizontal components of both centrifugal forces are always canceled out, and only the vertical components act in the same vertical direction, so that vertical vibration is generated in the front screed 13a. become.
【００２６】尚、図３に示した状態から駆動ギヤ１９ａ
と従動ギヤ２０ａとを一旦離反し、何れか一方のギヤを
軸心Ｏ1 またはＯ2 を中心に１８０度回転した後に再び
双方のギヤを噛合させれば、第１及び第２の偏心おもり
２１ａ，２３ａの双方を鉛直上方または鉛直下方へ位置
させることができる。From the state shown in FIG. 3, the drive gear 19a is changed.
The driven gear 20a and the driven gear 20a are once separated from each other, and either one of the gears is rotated 180 degrees about the axis O 1 or O 2 and then both gears are engaged again to form the first and second eccentric weights 21a. , 23a can be positioned vertically above or below.
【００２７】例えば、従動ギヤ２０ａを駆動ギヤ１９ａ
から一旦離反し、該従動ギヤ２０ａを軸心Ｏ2 を中心に
１８０度回転した後に再び駆動ギヤ１９ａへ噛合させれ
ば、第２の偏心おもり２３ａを脱着することなく、図６
に示すように、第１及び第２の偏心おもり２１ａ，２３
ａがともに鉛直下方に位置する。For example, the driven gear 20a is replaced with the drive gear 19a.
6 and the driven gear 20a is rotated 180 degrees about the axis O 2 and then meshed with the drive gear 19a again, the second eccentric weight 23a is not detached and removed.
, The first and second eccentric weights 21a, 23
Both a are located vertically below.
【００２８】斯くして、スクリード１３の各接地部がア
スファルト材を上下方向へ揺動するように運動し、アス
ファルト材が締め固められる。水平方向の振動に比較し
て上下方向の振動を加えることにより、アスファルト材
は一層強固に締め固められるので、施工現場の近隣に施
設や住宅等が存在せず、騒音及び振動等の公害を与えな
い環境である場合には、締め固め力の強い垂直方向の振
動を発生させて作業能率の向上を図ることができる。Thus, the grounding portions of the screed 13 move so as to swing the asphalt material in the vertical direction, and the asphalt material is compacted. Asphalt material is more firmly compacted by applying vertical vibration compared to horizontal vibration, so there is no facility or house near the construction site, and pollution such as noise and vibration is given. In a non-existing environment, vertical vibration with strong compaction force can be generated to improve work efficiency.
【００２９】図９は請求項２記載の発明の振動装置を装
着したスクリード１３の平面図であり、フロントスクリ
ード１３ａに装着した振動装置２５ａについて説明すれ
ば、フロントスクリード１３ａの水平前後方向へ駆動軸
２６ａを枢着し、該駆動軸２６ａに油圧モータ２７ａを
接続する。更に、該駆動軸２６ａの両側には、該駆動軸
２６ａと直交する水平な直線上で且つ同一高さに夫々第
１の従動軸２８ａ及び第２の従動軸２９ａを対峙して設
ける。FIG. 9 is a plan view of the screed 13 equipped with the vibrating device according to the second aspect of the present invention. Explaining the vibrating device 25a mounted on the front screed 13a, the drive shaft extends in the horizontal front-rear direction of the front screed 13a. 26a is pivotally attached, and a hydraulic motor 27a is connected to the drive shaft 26a. Further, on both sides of the drive shaft 26a, a first driven shaft 28a and a second driven shaft 29a are provided facing each other on a horizontal straight line orthogonal to the drive shaft 26a and at the same height.
【００３０】そして、前記駆動軸２６ａに駆動ベベルギ
ヤ３０ａを嵌着し、第１の従動軸２８ａ及び第２の従動
軸２９ａに夫々同一歯数の第１の従動ベベルギヤ３１ａ
及び第２の従動ベベルギヤ３２ａを嵌着するとともに、
前記駆動ベベルギヤ３０ａに第１及び第２の従動ベベル
ギヤ３１ａ，３２ａを噛合させる。A drive bevel gear 30a is fitted on the drive shaft 26a, and a first driven bevel gear 31a having the same number of teeth is attached to each of the first driven shaft 28a and the second driven shaft 29a.
And the second driven bevel gear 32a is fitted,
First and second driven bevel gears 31a and 32a are meshed with the drive bevel gear 30a.
【００３１】また、図９及び図１０に示すように、第１
の従動軸２８ａの軸心Ｏ3 の鉛直下方位置に前記第１の
偏心おもり２１ａをボルト２２ａにて固設し、第２の従
動軸２９ａの軸心Ｏ4 の鉛直上方位置に前記第２の偏心
おもり２３ａをボルト２４ａにて固設する。尚、この構
成に於いても、第１及び第２の偏心おもりを夫々第１及
び第２の従動ベベルギヤ３１ａ，３２ａの側面部へ固設
してもよい。As shown in FIGS. 9 and 10, the first
The first eccentric weight 21a is fixed by a bolt 22a at a position vertically below the axis O 3 of the driven shaft 28a, and the second eccentric weight 21a is provided at a position vertically above the axis O 4 of the second driven shaft 29a. The eccentric weight 23a is fixed with a bolt 24a. Also in this configuration, the first and second eccentric weights may be fixed to the side surfaces of the first and second driven bevel gears 31a and 32a, respectively.
【００３２】而して、前記油圧モータ２７ａを駆動して
駆動軸２６ａを回転すれば、駆動ベベルギヤ３０ａと第
１及び第２の従動ベベルギヤ３１ａ，３２ａとの噛合に
よって、第１の従動軸２８ａと第２の従動軸２９ａは反
対方向へ回転する。例えば、第１の従動軸２８ａが時計
方向へ回転し、第２の従動軸２９ａが反時計方向へ回転
するときは、第１の偏心おもり２１ａは軸心Ｏ3 の鉛直
下方位置から図１１（ａ）に示すように軸心Ｏ3 の左側
部位へ移動し、第２の偏心おもり２３ａは軸心Ｏ4 の鉛
直上方位置から軸心Ｏ4 の左側部位へ移動する。When the hydraulic motor 27a is driven to rotate the drive shaft 26a, the drive bevel gear 30a and the first and second driven bevel gears 31a and 32a mesh with each other to form the first driven shaft 28a. The second driven shaft 29a rotates in the opposite direction. For example, when the first driven shaft 28a rotates in the clockwise direction and the second driven shaft 29a rotates in the counterclockwise direction, the first eccentric weight 21a moves from the position vertically below the shaft center O 3 to the position shown in FIG. Go to the left part of the axis O 3 as shown in a), the second eccentric weight 23a moves from the vertical position above the axis O 4 to the left part of the axis O 4.
【００３３】以下、同図に示すように、図３乃至図５に
て説明した請求項１記載の発明と同じ作用によって、第
１及び第２の偏心おもり２１ａ，２３ａが何れの位置に
あっても、双方の遠心力の垂直成分は常に相殺され、水
平成分のみが左右同一方向へ作用するため、前記フロン
トスクリード１３ａには走行機体１２の前後方向へ水平
振動が発生することになる。Hereinafter, as shown in the same figure, by the same action as the invention according to claim 1 described with reference to FIGS. 3 to 5, the first and second eccentric weights 21a and 23a are located at any positions. However, the vertical components of both centrifugal forces are always canceled out, and only the horizontal component acts in the same horizontal direction, so that horizontal vibration occurs in the front screed 13a in the front-back direction of the traveling machine body 12.
【００３４】尚、図９に示した左右のリヤスクリード１
３ｂ，１３ｃに装着した振動装置２５ｂ，２５ｃも前記
振動装置２５ａと同様に構成されており、油圧モータ２
７ｂ，２７ｃを駆動することによって左右のリヤスクリ
ード１３ｂ，１３ｃにも水平前後方向の振動が発生す
る。また、図示は省略するが、駆動軸をスクリードの水
平左右方向に枢着するとともに、第１及び第２の従動軸
を水平前後方向に対峙して振動装置を構成してもよい。
この場合には、該スクリードには水平左右方向の振動が
発生する。The left and right rear screeds 1 shown in FIG.
The vibrating devices 25b and 25c mounted on the 3b and 13c have the same structure as that of the vibrating device 25a.
By driving 7b and 27c, horizontal front-rear vibration is also generated in the left and right rear screeds 13b and 13c. Although not shown, the drive shaft may be pivotally mounted in the horizontal left-right direction of the screed, and the first and second driven shafts may be opposed to each other in the horizontal front-rear direction to form the vibration device.
In this case, horizontal and horizontal vibrations are generated in the screed.
【００３５】斯くして、スクリード１３の各接地部がア
スファルト材を水平方向へ揺動するように運動し、ヘア
クラックの発生を起こすことなくアスファルト材が締め
固められる。そして、地盤には水平振動のみが与えられ
るが、該水平振動は上下振動に比較して地盤の振動減衰
率が大であるため、作業環境が向上するとともに近隣地
域へ騒音及び振動の公害を与える虞が少ない。Thus, the grounding portions of the screed 13 move so as to swing the asphalt material in the horizontal direction, and the asphalt material is compacted without causing hair cracks. Then, only horizontal vibration is applied to the ground, but the horizontal vibration has a large vibration damping ratio of the ground compared with vertical vibration, so that the working environment is improved and noise and vibration pollution is given to neighboring areas. There is little fear.
【００３６】ここで、図１０に示したように、第１及び
第２の偏心おもり２１ａ，２３ａは夫々ボルト２２ａ，
２４ａを取り外すことにより、軸心Ｏ3 ，Ｏ4 を中心に
１８０度ずらした位置へ移動自在である。従って、第１
及び第２の偏心おもり２１ａ，２３ａの双方を鉛直上方
位置または鉛直下方位置に固設することが可能である。
以下、図示は省略するが、第１及び第２の偏心おもり
２１ａ，２３ａの双方を鉛直同一方向へ固設した場合
は、図６乃至図８にて説明した請求項３記載の発明と同
じ作用により、第１及び第２の偏心おもり２１ａ，２３
ａが何れの位置にあっても、双方の遠心力の水平成分は
常に相殺され、垂直成分のみが鉛直同一方向へ作用する
ため、前記フロントスクリード１３ａには垂直方向の振
動が発生することになる。Here, as shown in FIG. 10, the first and second eccentric weights 21a and 23a are respectively bolts 22a and 23a.
By removing 24a, it can be moved to a position shifted by 180 degrees about the axes O 3 and O 4 . Therefore, the first
It is possible to fix both the second eccentric weights 21a and 23a at the vertically upper position or the vertically lower position.
Hereinafter, although not shown, when both the first and second eccentric weights 21a and 23a are fixed in the same vertical direction, the same action as that of the invention of claim 3 described in FIGS. Therefore, the first and second eccentric weights 21a, 23
Regardless of the position of a, the horizontal components of both centrifugal forces are always canceled out, and only the vertical components act in the same vertical direction, so that vertical vibration is generated in the front screed 13a. .
【００３７】尚、図１０に示した状態から駆動ベベルギ
ヤ３０ａと第１及び第２の従動ベベルギヤ３１ａ，３２
ａとを一旦離反し、何れか一方の従動ベベルギヤを軸心
Ｏ3またはＯ4 を中心に１８０度回転した後に再び各ベ
ベルギヤを噛合させれば、第１及び第２の偏心おもり２
１ａ，２３ａの双方を鉛直上方または鉛直下方へ位置さ
せることができる。From the state shown in FIG. 10, the driving bevel gear 30a and the first and second driven bevel gears 31a and 32 are used.
a and the driven bevel gear of one of them is rotated 180 degrees about the axis O 3 or O 4 and then the respective bevel gears are engaged again, the first and second eccentric weights 2
Both 1a and 23a can be positioned vertically above or below vertically.
【００３８】例えば、第２の従動ベベルギヤ３２ａを駆
動ベベルギヤ３０ａから一旦離反し、該第２の従動ベベ
ルギヤ３２ａを軸心Ｏ4 を中心に１８０度回転した後に
再び駆動ベベルギヤ３０ａへ噛合させれば、第２の偏心
おもり２３ａを脱着することなく、第１及び第２の偏心
おもり２１ａ，２３ａがともに鉛直下方に位置する。For example, if the second driven bevel gear 32a is once separated from the drive bevel gear 30a, the second driven bevel gear 32a is rotated 180 degrees about the axis O 4, and then again engaged with the drive bevel gear 30a. Both the first and second eccentric weights 21a and 23a are positioned vertically below without removing the second eccentric weight 23a.
【００３９】斯くして、スクリード１３の各接地部がア
スファルト材を上下方向へ揺動するように運動し、アス
ファルト材が締め固められる。水平方向の振動に比較し
て上下方向の振動を加えた方が、アスファルト材は一層
強固に締め固められるので、施工現場の近隣に施設や住
宅等が存在せず、騒音及び振動等の公害を与えない環境
である場合には、締め固め力の強い垂直方向の振動を発
生させて作業能率の向上を図ることができる。Thus, each grounding portion of the screed 13 moves so as to swing the asphalt material in the vertical direction, and the asphalt material is compacted. Asphalt material is more firmly compacted when vertical vibration is applied compared to horizontal vibration, so there are no facilities or houses near the construction site, and noise and vibration pollution is eliminated. When the environment is not given, vertical vibration with strong compaction force can be generated to improve work efficiency.
【００４０】尚、本発明は、本発明の精神を逸脱しない
限り種々の改変を為すことができ、そして、本発明が該
改変されたものに及ぶことは当然である。The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified one.
【００４１】[0041]
【発明の効果】請求項１及び２記載の発明は、スクリー
ドに水平方向の振動のみが発生するので、スクリードの
締め固め能率を低下させることなく、近隣地域への騒音
及び振動を低減することができ、公害の発生を未然に防
止することが可能となる。According to the first and second aspects of the present invention, since only the horizontal vibration is generated in the screed, it is possible to reduce noise and vibration to a neighboring area without reducing the compaction efficiency of the screed. It is possible to prevent the occurrence of pollution.
【００４２】また、請求項３乃至５記載の発明は、振動
装置の偏心おもりの相対位置を変更することにより、ス
クリードの振動方向を水平または垂直の何れかを選択可
能にしている。従って、近隣地域に騒音及び振動等の公
害を与えない環境である場合には、締め固め力の強い垂
直方向の振動を発生させて作業能率の向上を図ることが
できる。In the invention according to claims 3 to 5, the relative position of the eccentric weight of the vibration device is changed so that the vibration direction of the screed can be selected from horizontal or vertical. Therefore, in an environment where pollution such as noise and vibration is not given to the neighboring area, it is possible to improve the work efficiency by generating vertical vibration having a strong compaction force.
【図１】本発明の一実施例を示し、アスファルトフィニ
ッシャの斜視図。FIG. 1 is a perspective view of an asphalt finisher showing an embodiment of the present invention.
【図２】請求項１記載の発明の一実施例を示し、振動装
置の線図を示したスクリードの平面図。FIG. 2 is a plan view of a screed showing an embodiment of the invention according to claim 1 and showing a diagram of a vibrating device.
【図３】図２のＡ−Ａ線断面図。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】（ａ）乃至（ｃ）は偏心おもりの相対位置と遠
心力の方向を示す解説図。4A to 4C are explanatory views showing the relative position of the eccentric weight and the direction of centrifugal force.
【図５】（ａ）乃至（ｃ）は偏心おもりの相対位置と遠
心力の方向を示す解説図。5A to 5C are explanatory views showing the relative position of the eccentric weight and the direction of centrifugal force.
【図６】請求項３及び４記載の発明の一実施例を示し、
偏心おもりの縦断側面図。FIG. 6 shows an embodiment of the invention described in claims 3 and 4,
A vertical side view of an eccentric weight.
【図７】（ａ）乃至（ｃ）は偏心おもりの相対位置と遠
心力の方向を示す解説図。7A to 7C are explanatory views showing the relative position of the eccentric weight and the direction of centrifugal force.
【図８】（ａ）乃至（ｃ）は偏心おもりの相対位置と遠
心力の方向を示す解説図。8A to 8C are explanatory views showing the relative position of the eccentric weight and the direction of centrifugal force.
【図９】請求項２記載の発明の一実施例を示し、振動装
置の線図を示したスクリードの平面図。FIG. 9 is a plan view of the screed showing the diagram of the vibrating device according to the second embodiment of the invention.
【図１０】図９のＢ−Ｂ線断面図。FIG. 10 is a sectional view taken along line BB of FIG. 9;
【図１１】（ａ）乃至（ｆ）は偏心おもりの相対位置と
遠心力の方向を示す解説図。11A to 11F are explanatory views showing the relative position of the eccentric weight and the direction of centrifugal force.
１１ アスファルトフィニッシャ １２ 走行機体 １３ スクリード １５ａ，１５ｂ，１５ｃ 振動装置 １６ａ，１６ｂ，１６ｃ 駆動軸 １７ａ，１７ｂ，１７ｃ 従動軸 １９ａ，１９ｂ，１９ｃ 駆動ギヤ ２０ａ，２０ｂ，２０ｃ 従動ギヤ ２１ａ，２１ｂ，２１ｃ 第１の偏心おもり ２３ａ，２３ｂ，２３ｃ 第２の偏心おもり Ｏ1 ，Ｏ2 軸心 ２５ａ，２５ｂ，２５ｃ 振動装置 ２６ａ，２６ｂ，２６ｃ 駆動軸 ２８ａ，２８ｂ，２８ｃ 第１の従動軸 ２９ａ，２９ｂ，２９ｃ 第２の従動軸 ３０ａ，３０ｂ，３０ｃ 駆動ベベルギヤ ３１ａ，３１ｂ，３１ｃ 第１の従動ベベルギヤ ３２ａ，３２ｂ，３２ｃ 第２の従動ベベルギヤ Ｏ3 ，Ｏ4 軸心11 Asphalt Finisher 12 Traveling Vehicle 13 Screed 15a, 15b, 15c Vibration Device 16a, 16b, 16c Drive Shaft 17a, 17b, 17c Driven Shaft 19a, 19b, 19c Drive Gear 20a, 20b, 20c Driven Gear 21a, 21b, 21c 1st the eccentric weight 23a, 23b, 23c second eccentric weight O 1, O 2 axis 25a, 25b, 25c vibration device 26a, 26b, 26c drive shaft 28a, 28b, 28c first driven shaft 29a, 29b, 29c first 2 driven shafts 30a, 30b, 30c drive bevel gears 31a, 31b, 31c 1st driven bevel gears 32a, 32b, 32c 2nd driven bevel gears O 3 , O 4 axis center
Claims (5)
の後部に牽引されるスクリードの振動装置に於いて、ス
クリードの水平方向へ駆動軸と従動軸を平行且つ同一高
さに枢着し、該駆動軸へ駆動ギヤを嵌着するとともに、
駆動ギヤと同一歯数の従動ギヤを前記従動軸へ嵌着して
双方のギヤを噛合させ、該駆動軸或いは駆動ギヤに第１
の偏心おもりを駆動軸心から所定距離に固設するととも
に、従動軸或いは従動ギヤに該第１の偏心おもりと同一
質量の第２の偏心おもりを従動軸心から前記所定距離と
同一距離に固設し、且つ、該第１の偏心おもりが駆動軸
心の鉛直下方に位置するときに、第２の偏心おもりが従
動軸心の鉛直上方に位置するようにしたことを特徴とす
るスクリードの振動装置。1. A vibrating device for a screed that is towed to the rear of a traveling machine body such as an asphalt finisher. In the screed, a drive shaft and a driven shaft are pivotally mounted in parallel and at the same height in the horizontal direction of the screed. While fitting the drive gear,
A driven gear having the same number of teeth as the drive gear is fitted to the driven shaft so that both gears mesh with each other, and the drive shaft or the drive gear has a first
Eccentric weight is fixed at a predetermined distance from the drive shaft center, and a second eccentric weight having the same mass as the first eccentric weight is fixed to the driven shaft or the driven gear at a predetermined distance from the driven shaft center. And a second eccentric weight is positioned vertically above the driven shaft center when the first eccentric weight is positioned vertically below the drive shaft center. apparatus.
の後部に牽引されるスクリードの振動装置に於いて、ス
クリードの水平方向へ駆動軸を枢着し、該駆動軸の両側
には該駆動軸と直交する直線上で且つ同一高さに夫々第
１の従動軸及び第２の従動軸を対峙して設け、前記駆動
軸に駆動ベベルギヤを嵌着し、第１の従動軸及び第２の
従動軸に夫々同一歯数の第１の従動ベベルギヤ及び第２
の従動ベベルギヤを嵌着するとともに、第１及び第２の
従動ベベルギヤを前記駆動ベベルギヤに噛合させ、更
に、前記第１の従動軸或いは第１の従動ベベルギヤに第
１の偏心おもりを第１の従動軸心から所定距離に固設す
るとともに、第２の従動軸或いは第２の従動ベベルギヤ
に該第１の偏心おもりと同一質量の第２の偏心おもりを
第２の軸心から前記所定距離と同一距離に固設し、且
つ、該第１の偏心おもりが第１の従動軸心の鉛直下方に
位置するときに、第２の偏心おもりが第２の従動軸心の
鉛直上方に位置するようにしたことを特徴とするスクリ
ードの振動装置。2. A vibrating device for a screed pulled to the rear of a traveling machine body such as an asphalt finisher, in which a drive shaft is pivotally mounted in the horizontal direction of the screed, and the drive shaft is orthogonal to the drive shaft on both sides of the drive shaft. A first driven shaft and a second driven shaft are provided so as to face each other on a straight line and at the same height, and a drive bevel gear is fitted to the drive shaft, and the first driven shaft and the second driven shaft are respectively attached. The first driven bevel gear and the second having the same number of teeth
The driven bevel gear is fitted, the first and second driven bevel gears are meshed with the drive bevel gear, and the first eccentric weight is attached to the first driven shaft or the first driven bevel gear. A second eccentric weight having the same mass as that of the first eccentric weight is fixed to the second driven shaft or the second driven bevel gear at the predetermined distance from the second axial center. The second eccentric weight is positioned vertically above the second driven shaft center when the first eccentric weight is positioned vertically below the first driven shaft center while being fixed to the distance. The vibrating device of the screed characterized by the above.
おもりを、該一方の軸心を中心に１８０度ずらした位置
へ移動自在にしたことを特徴とする請求項１または２記
載のスクリードの振動装置。3. The eccentric weight of either the first or the second is movable to a position displaced by 180 degrees about the axis of the one of the eccentric weights. Screed vibrating device.
何れか一方のギヤの軸心を中心にして該一方のギヤを１
８０度回転した位置にしたことを特徴とする請求項１記
載のスクリードの振動装置。4. The meshing position of the drive gear and the driven gear is
Set one of the gears to 1
The screed vibrating device according to claim 1, wherein the vibrating device is at a position rotated by 80 degrees.
従動ベベルギヤの噛合位置を、第１または第２の何れか
一方の従動ベベルギヤの軸心を中心にして該一方の従動
ベベルギヤを１８０度回転した位置にしたことを特徴と
する請求項２記載のスクリードの振動装置。5. The meshing position between the drive bevel gear and the first or second driven bevel gear is rotated by 180 degrees about the shaft center of either one of the first and second driven bevel gears. 3. The screed vibrating device according to claim 2, wherein the vibrating device is located at a predetermined position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24316594A JPH08105012A (en) | 1994-10-06 | 1994-10-06 | Vibrating device for screed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24316594A JPH08105012A (en) | 1994-10-06 | 1994-10-06 | Vibrating device for screed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08105012A true JPH08105012A (en) | 1996-04-23 |
Family
ID=17099782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24316594A Pending JPH08105012A (en) | 1994-10-06 | 1994-10-06 | Vibrating device for screed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08105012A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1577443A1 (en) * | 2004-03-18 | 2005-09-21 | BITELLI S.p.A. | Vibratory screed for a paving machine |
| CN102304889A (en) * | 2011-09-02 | 2012-01-04 | 徐州凯莫尔重工科技有限公司 | Hydraulic drive pre-compaction vibration device for spreading machine |
| JP2014139397A (en) * | 2012-12-10 | 2014-07-31 | Bomag Gmbh | Compacting machine |
-
1994
- 1994-10-06 JP JP24316594A patent/JPH08105012A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1577443A1 (en) * | 2004-03-18 | 2005-09-21 | BITELLI S.p.A. | Vibratory screed for a paving machine |
| CN102304889A (en) * | 2011-09-02 | 2012-01-04 | 徐州凯莫尔重工科技有限公司 | Hydraulic drive pre-compaction vibration device for spreading machine |
| JP2014139397A (en) * | 2012-12-10 | 2014-07-31 | Bomag Gmbh | Compacting machine |
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