JPH039988U

JPH039988U -

Info

Publication number: JPH039988U
Application number: JP7048089U
Authority: JP
Priority date: 1989-06-16
Filing date: 1989-06-16
Publication date: 1991-01-30

Description

[Brief explanation of drawings]

第１図および第２図は従前手段を示し、第１図
は従前のクローラ型バツクホウの側面図、第２図
は同上の正面図である。第３図乃至第８図は本考
案手段を示し、第３図は本考案を実施せるクロー
ラ型バツクホウの斜視図、第４図は同上の要部の
分解斜視図、第５図は同上の要部の平面図、第６
図は同上の要部の正面図、第７図は同上の要部の
側面図、第８図は同上の油圧回路図である。図面符号の説明、Ａ……バツクホウ、Ｄ……ク
ローラの左右の巾、Ｅ……エンジン、Ｍ……駆動
モーター、Ｗ……旋回フレームの左右の巾、ＳＶ
……セレクターバルブ、ａ……クローラ、ｂ……
車体、ｃ……作業機、ｄ……座席、ｅ……旋回フ
レーム、ｆ……排土板、ｇ……機筐、ｈ……制御
ボツクス、Ｐ１，Ｐ２……油圧ポンプ、１０……
トラツクフレーム、１１……アイドラホイル、１
２，１２Ｌ，１２Ｒ……油圧モーター、１３……
ドライブホイル、１４……転輪、１５……覆帯、
１６……支持フレーム、２０……架台、２１……
油圧シリンダ装置、２２……ガイドフレーム、３
……両ロツドシリンダ装置、３０……シリンダ、
３１……ロツド、３２……ブラケツト、４……バ
ケツト、４０……ブーム、４１……バケツト、４
２，４３，４４……油圧シリンダ装置、４５……
アーム、４６……油圧シリンダ装置、５……コン
トロールバルブユニツト、６０，６１……制御レ
バー。 1 and 2 show conventional means, FIG. 1 is a side view of a conventional crawler type backhoe, and FIG. 2 is a front view of the same. 3 to 8 show the means of the present invention, FIG. 3 is a perspective view of a crawler type backhoe in which the present invention can be implemented, FIG. 4 is an exploded perspective view of the main parts of the same, and FIG. 5 is the main parts of the same. Plan view of section, No. 6
The figure is a front view of the main parts same as the above, FIG. 7 is a side view of the main parts same as the above, and FIG. 8 is a hydraulic circuit diagram same as the above. Explanation of drawing symbols, A...Backwing, D...Left and right width of crawler, E...Engine, M...Drive motor, W...Left and right width of swing frame, SV
...Selector valve, a...Crawler, b...
Vehicle body, c...Work equipment, d...Seat, e...Swivel frame, f...Earth removal plate, g...Machine casing, h...Control box, P1, P2...Hydraulic pump, 10...
Truck frame, 11...Idler foil, 1
2, 12L, 12R...Hydraulic motor, 13...
Drive wheel, 14... Rolling wheel, 15... Cover belt,
16... Support frame, 20... Frame, 21...
Hydraulic cylinder device, 22... Guide frame, 3
...Double rod cylinder device, 30...Cylinder,
31... Rod, 32... Bracket, 4... Bucket, 40... Boom, 41... Bucket, 4
2, 43, 44...hydraulic cylinder device, 45...
Arm, 46...hydraulic cylinder device, 5...control valve unit, 60, 61...control lever.

Claims

[Scope of utility model registration request]

Left and right crawlers a, a are attached to a vehicle body b, which supports a discharging plate f that is raised and lowered by a hydraulic cylinder device 21 on the front end side, and a swing frame e that supports a working machine c in a vertically movable manner on the upper surface side. The truck frames 10, 10 are slidably fitted to the vehicle body b by slidably fitting the left and right support frames 16, 16 provided thereon with the left and right guide frames 22, 22 provided on the vehicle body b. On the other hand, it is supported so as to be movable in the left and right direction, and both rod cylinder devices 3 are mounted on the bridge between the truck frames 10, 10, and both rod cylinder devices 3 are connected to the hydraulic circuit of a hydraulic device installed in the vehicle body b. A crawler width adjusting device for a crawler type backhoe, in which the intermediate portion of the cylinder 30 of the crawler backhoe is connected and supported by the vehicle body b.