JP2876261B2 - Motor grader - Google Patents
Motor graderInfo
- Publication number
- JP2876261B2 JP2876261B2 JP12657291A JP12657291A JP2876261B2 JP 2876261 B2 JP2876261 B2 JP 2876261B2 JP 12657291 A JP12657291 A JP 12657291A JP 12657291 A JP12657291 A JP 12657291A JP 2876261 B2 JP2876261 B2 JP 2876261B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- blades
- motor grader
- cylinder
- frame
- 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.)
- Expired - Lifetime
Links
Landscapes
- Operation Control Of Excavators (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、道路や広場などの路面
を整地するモータグレーダに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor grader for leveling a road or a square.
【０００２】[0002]
【従来の技術】図１、図２に示すようにフレーム１の前
部に前輪２、後部に後輪３をそれぞれ装着し、フレーム
１の前部に昇降シリンダ４で上下揺動自在に取付けたド
ローバ５に旋回サークル６を取付け、この旋回サークル
６にブレード７を旋回自在に取付けたモータグレーダが
知られている。2. Description of the Related Art As shown in FIGS. 1 and 2, a front wheel 2 is mounted on a front portion of a frame 1 and a rear wheel 3 is mounted on a rear portion thereof. There is known a motor grader in which a turning circle 6 is attached to a draw bar 5 and a blade 7 is attached to the turning circle 6 so as to freely swing.
【０００３】[0003]
【発明が解決しようとする課題】モータグレーダは図２
に仮想線で示すようにブレード７を進行方向に対して斜
めとし、ブレード７で切削した土砂を斜め横に送り出し
て路面を整地するものであり、車巾よりもはるかに長い
ブレードを必要とするし、又走行時にはブレード７が邪
魔になるから整地時よりも大きな角度で斜めにして車巾
内に収めているので、ホイールベースＬが長くなり、旋
回半径が大きくなって小回りできないから近年要求の多
い狭い道路や狭い広場等の狭い場所での整地作業ができ
ない。The motor grader is shown in FIG.
As shown by the imaginary line, the blade 7 is inclined with respect to the traveling direction, and the earth and sand cut by the blade 7 is sent obliquely sideways to level the road surface, and requires a blade much longer than the vehicle width. In addition, since the blade 7 is obstructed during traveling, the blade 7 is obliquely accommodated in the vehicle width at an angle larger than that at the time of leveling. Leveling work cannot be performed on narrow places such as many narrow roads and narrow plazas.
【０００４】そこで、本発明は前述の課題を解決できる
ようにしたモータグレーダを提供することを目的とす
る。Therefore, an object of the present invention is to provide a motor grader which can solve the above-mentioned problems.
【課題を解決するための手段】フレームの前後中間部
に、複数のブレードを前後揺動自在に連結した前後折曲
自在な多関節のブレードを昇降自在に取付けたモータグ
レーダ。SUMMARY OF THE INVENTION A motor grader having a multi-joint blade, which is formed by connecting a plurality of blades so as to be able to swing back and forth, is attached to a front and rear intermediate portion of a frame so as to be vertically movable.
【作 用】複数ブレードを前後に揺動することでブレ
ードの全長を車巾より大きくしたり、小さくできる。[Operation] By swinging a plurality of blades back and forth, the total length of the blades can be made larger or smaller than the vehicle width.
【０００５】[0005]
【実 施 例】図３、図４に示すように、フレーム１０
の前部に前輪１１を、後部に後輪１２をそれぞれ装着
し、フレーム１０の前後中間部にアーム１３を昇降シリ
ンダ１４で上下揺動自在に取付け、そのアーム１３の前
端部に第１、第２ブレード１５，１６をピン１７で前後
揺動自在にそれぞれ取付け、この第１、第２ブレード１
５，１６に第３、第４ブレード１８，１９をピン２０，
２１で前後揺動自在にそれぞれ取付けて前後方向に折曲
自在な多関節のブレード２２を構成し、アーム１３と第
１、第２ブレード１５，１６とに亘って第１、第２シリ
ンダ２３，２４を連結し、第１ブレード１５と第３ブレ
ード１８に亘って第３シリンダ２５を連結し、第２ブレ
ード１６と第４ブレード１９に亘って第４シリンダ２６
を連結してある。[Embodiment] As shown in FIGS.
A front wheel 11 is mounted on a front part of the frame 10 and a rear wheel 12 is mounted on a rear part thereof. An arm 13 is attached to a front and rear intermediate part of the frame 10 by a lifting cylinder 14 so as to be vertically swingable. The first and second blades 1 and 2 are attached to the first and second blades 1 and 2 so as to swing back and forth with pins 17.
The third and fourth blades 18 and 19 are connected to pins 20 and 5,
A multi-joint blade 22 is attached at 21 so as to be able to swing back and forth, and can be bent in the front-rear direction. The first and second cylinders 23, 24, the third cylinder 25 over the first blade 15 and the third blade 18, and the fourth cylinder 26 over the second blade 16 and the fourth blade 19.
Are connected.
【０００６】図４に実線で示すように第１、第２、第
３、第４ブレード１５，１６，１８，１９を一直線状と
すればブレード２２の全長が車巾より大きくなり、この
状態で第１シリンダ２３を伸長し、第２シリンダ２４を
縮小してブレード２２全体をピン１７を中心として図５
のように揺動すれば従来と同様に路面に整地でき、図４
の状態から第３、第４シリンダ２５，２６を伸長して第
３、第４ブレード１８，１９をピン２０，２１を中心と
して図６のように前方に揺動すればブレード２２が略コ
字状となって切削した、土砂等がブレード２２から路肩
にこぼれないようにでき、第１、第２シリンダ２３，２
４を伸長し、第３、第４シリンダ２５，２６を縮小して
図４の仮想線で示すように第１、第２ブレード１５，１
６を前方に揺動し、第３、第４ブレード１８，１９を後
方に揺動すればブレード２２を車巾内に収納できるし、
ホイールベースＬを短かくできる。If the first, second, third, and fourth blades 15, 16, 18, and 19 are formed in a straight line as shown by a solid line in FIG. 4, the total length of the blades 22 becomes larger than the vehicle width. The first cylinder 23 is extended, the second cylinder 24 is contracted, and the entire blade 22 is
If the rocking is performed as shown in Fig.
When the third and fourth cylinders 25 and 26 are extended from the state described above and the third and fourth blades 18 and 19 are swung forward around the pins 20 and 21 as shown in FIG. The first and second cylinders 23, 2 can be prevented from spilling from the blade 22 on the road shoulder.
4, the third and fourth cylinders 25 and 26 are contracted to reduce the first and second blades 15 and 1 as shown by phantom lines in FIG.
By swinging the blade 6 forward and swinging the third and fourth blades 18 and 19 backward, the blade 22 can be stored in the vehicle width.
The wheelbase L can be shortened.
【０００７】[0007]
【発明の効果】複数のブレードを一直線状とすれば、ブ
レード２２の全長を車巾より大きくでき、その状態でブ
レード２２全体を進行方向に対して斜めにすることで路
面を切削した土砂等を斜め横に送り出しでき、複数のブ
レードを交互に前方、後方に揺動してブレード２２を折
曲した状態とすればブレード２２の全長が車巾よりも小
さくなって小さなホイールベースでも車巾内に収納でき
るから、路面を整地できるし、ホイールベースを短かく
して旋回半径を小さく小回りできて狭い場所でも整地作
業できる。If the plurality of blades are arranged in a straight line, the total length of the blades 22 can be made larger than the vehicle width. If the blade 22 is bent by swinging forward and backward alternately a plurality of blades, the overall length of the blade 22 is smaller than the vehicle width, so that even a small wheelbase can be delivered within the vehicle width. Because it can be stored, the road surface can be leveled, the wheelbase can be shortened, the turning radius can be reduced, and the road can be turned even in narrow places.
【図１】従来のモータグレーダの正面図である。FIG. 1 is a front view of a conventional motor grader.
【図２】従来のモータグレーダの平面図である。FIG. 2 is a plan view of a conventional motor grader.
【図３】本発明のモータグレーダの正面図である。FIG. 3 is a front view of the motor grader of the present invention.
【図４】本発明のモータグレーダの平面図である。FIG. 4 is a plan view of the motor grader of the present invention.
【図５】整地作業状態説明図である。FIG. 5 is an explanatory view of a grading work state.
【図６】整地作業状態説明図である。FIG. 6 is an explanatory diagram of a grading work state.
１０ フレーム、１１ 前輪、１２ 後輪、１３ アー
ム、１４ 昇降シリンダ、１５ 第１ブレード、１６
第２ブレード、１８ 第３ブレード、１９ 第４ブレー
ド、２２ ブレード、２３ 第１シリンダ、２４ 第２
シリンダ、２５第３シリンダ、２６ 第４シリンダ。10 frame, 11 front wheel, 12 rear wheel, 13 arm, 14 elevating cylinder, 15 first blade, 16
2nd blade, 18 3rd blade, 19 4th blade, 22 blade, 23 1st cylinder, 24 2nd
Cylinder, 25 third cylinder, 26 fourth cylinder.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 平３−21418（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) E02F 3/815 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-21418 (JP, U) (58) Fields surveyed (Int. Cl. 6 , DB name) E02F 3/815
Claims (1)
及び後輪１２をそれぞれ装着し、前記フレーム１０の前
後中間部に、複数のブレードを前後方向に揺動自在に連
結した前後折曲自在な多関節のブレード２２を昇降自在
に取付けたことを特徴とするモータグレーダ。A front wheel (11) is provided on a front portion and a rear portion of a frame (10).
And a rear wheel 12 is mounted on each frame, and a multi-joint blade 22 is attached to the front and rear intermediate portion of the frame 10 so as to be able to move up and down and to bendable. And a motor grader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12657291A JP2876261B2 (en) | 1991-05-01 | 1991-05-01 | Motor grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12657291A JP2876261B2 (en) | 1991-05-01 | 1991-05-01 | Motor grader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04330122A JPH04330122A (en) | 1992-11-18 |
| JP2876261B2 true JP2876261B2 (en) | 1999-03-31 |
Family
ID=14938488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12657291A Expired - Lifetime JP2876261B2 (en) | 1991-05-01 | 1991-05-01 | Motor grader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2876261B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8393429B2 (en) * | 2009-11-06 | 2013-03-12 | Caterpillar Inc. | Variable wheelbase motor grader |
-
1991
- 1991-05-01 JP JP12657291A patent/JP2876261B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04330122A (en) | 1992-11-18 |
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