JPH0357828U

JPH0357828U -

Info

Publication number: JPH0357828U
Application number: JP8396389U
Authority: JP
Priority date: 1989-07-19
Filing date: 1989-07-19
Publication date: 1991-06-04

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例を示す全体斜視
図、第２図は第１の実施例に係る電気回路図、第
３図は本考案の第２の実施例を示す全体側面図、
第４図は第２の実施例に係る全体斜視図、第５図
は第２の実施例に係る電気回路図、第６図は実施
例に係る垂直ブームの揺動角度と電気信号出力値
との関係を示す表、第７図は第２の実施例の変形
例に係るストツパの側面図、第８図は従来の機械
式連続アンローダの全体を示す側面図、第９図は
従来例に係る油圧シリンダの油圧回路系統図であ
る。１５……垂直ブーム、１９……ポテンシヨメー
タ、１９ａ……回転軸、２０……下げ錘り、２１
……カム、２２……リミツトスイツチ。 Fig. 1 is an overall perspective view showing the first embodiment of the present invention, Fig. 2 is an electric circuit diagram according to the first embodiment, and Fig. 3 is an overall side view showing the second embodiment of the invention. ,
FIG. 4 is an overall perspective view of the second embodiment, FIG. 5 is an electric circuit diagram of the second embodiment, and FIG. 6 is a vertical boom swing angle and electrical signal output value of the embodiment. 7 is a side view of a stopper according to a modification of the second embodiment, FIG. 8 is a side view showing the entire conventional mechanical continuous unloader, and FIG. 9 is a side view of the conventional mechanical continuous unloader. It is a hydraulic circuit system diagram of a hydraulic cylinder. 15... Vertical boom, 19... Potentiometer, 19a... Rotating shaft, 20... Plumb weight, 21
...Cam, 22...Limit switch.

Claims

[Scope of utility model registration request]

A horizontal boom mounted on a movable frame so that it can be lifted up and down; a vertical boom mounted pivotably on the tip of the horizontal boom; a hydraulic cylinder that swings the vertical boom in the axial direction of the horizontal boom; In a mechanical continuous unloader configured with a potentiometer provided on a side surface of the vertical boom in order to control the supply pressure to the hydraulic cylinder in proportion to the swing angle value of the vertical boom, the potentiometer 1. A mechanical continuous unloader, characterized in that a device is provided that makes the generated electrical signal output value a constant electrical signal output value when the vertical boom reaches a predetermined swing angle or more.