JPH0446152U

JPH0446152U -

Info

Publication number: JPH0446152U
Application number: JP8728990U
Authority: JP
Priority date: 1990-08-21
Filing date: 1990-08-21
Publication date: 1992-04-20

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の油圧パワーシヨベ
ルの側面図、第２図はこの実施例のパワーシヨベ
ルが堤防などの法面を広範囲に整形する作業を行
なつている状態を説明する斜視図、第３図はこの
実施例のパワーシヨベルが垂直溝を掘削している
状態を説明する斜視図、第４図及び第５図は同じ
従来技術の油圧パワーシヨベルの側面図であつて
、前部ブームとアームとを交換して使用する状態
をそれぞれ示す図、第６図は別の従来技術の油圧
パワーシヨベルの側面図である。１……下部走行体、２……上部旋回体、３……
後部ブーム、４……前部ブーム、４ａ……前部ブ
ームの前方部、４ｂ……前部ブームの後方部、５
……後部アーム、５ａ……後部アームの前方部、
５ｂ……後部アームの後方部、６……前部アーム
、７……バケツト、８……後部ブーム油圧シリン
ダ、９……前部ブーム油圧シリンダ、１０……後
部アーム油圧シリンダ、１１……前部アーム油圧
シリンダ、１２……バケツト油圧シリンダ、２５
……第１の回転駆動装置、２６……第２の回転駆
動装置。 FIG. 1 is a side view of a hydraulic power shovel according to an embodiment of the present invention, and FIG. 2 is a perspective view illustrating a state in which the power shovel according to this embodiment is used to shape a wide range of slopes such as embankments. FIG. 3 is a perspective view illustrating the state in which the power shovel of this embodiment is excavating a vertical trench, and FIGS. 4 and 5 are side views of the same prior art hydraulic power shovel, showing the front boom and arm. FIG. 6 is a side view of another conventional hydraulic power shovel. 1... Lower traveling body, 2... Upper revolving body, 3...
Rear boom, 4... Front boom, 4a... Front part of the front boom, 4b... Rear part of the front boom, 5
... Rear arm, 5a ... Front part of rear arm,
5b... Rear part of rear arm, 6... Front arm, 7... Bucket, 8... Rear boom hydraulic cylinder, 9... Front boom hydraulic cylinder, 10... Rear arm hydraulic cylinder, 11... Front Part arm hydraulic cylinder, 12...Bucket hydraulic cylinder, 25
...first rotational drive device, 26...second rotational drive device.

Claims

[Scope of utility model registration request]

An undercarriage body 1, an upper revolving body 2 rotatably mounted on the undercarriage body 1, a rear boom 3 having one end pivotally attached to the upper revolving body 2, and the other parts of the rear boom 3. A front boom 4 has a rear section 4b pivotally attached to its end, and a rear section 5 is attached to the front section 4a of the front boom 4.
a rear arm 5 to which b is pivotally connected, and the rear arm 5
A front arm 6 whose one end is pivotally connected to the front part 5a of the
and a worker 7 pivotally attached to the other end of the front arm 6, the front boom 4 has a front section 4a connected to a rear section 4b thereof, and a rear section 4b of the front section 4a, 4a relative to the rear part 4b about the longitudinal axis B-B of the front boom 4, said rear arm 5 is provided with a first rotary drive 25 capable of rotating said front boom 4 with respect to said rear part 4b, said rear arm 5 having a front part 5a and a rear part thereof. 5
b and is capable of rotating the front part 5a relative to the rear part 5b about the longitudinal axis C-C of the rear arm 5; A hydraulic power shovel characterized in that a front arm hydraulic cylinder 11 for pivoting the front arm 6 is mounted between the front portion 5a and the front arm 6.