JPH0334869U

JPH0334869U -

Info

Publication number: JPH0334869U
Application number: JP9286289U
Authority: JP
Priority date: 1989-08-09
Filing date: 1989-08-09
Publication date: 1991-04-05
Anticipated expiration: 2003-10-21
Also published as: JPH0541803Y2

Description

[Brief explanation of drawings]

第１図〜第３図はこの考案の実施例に関し、第
１図はブームスプレーヤにおけるブーム装置の全
体図、第２図は移動ブームの移動量制御部の電気
回路図、第３図は移動ブームの移動量制御部の油
圧回路図、第４図及び第５図はそれぞれ従来のブ
ーム装置の構造図である。１０……ブーム装置、１２……支持ブーム、１
４……移動ブーム、２８……ノズル、３０……開
閉操作部、３２……当接体、３４……リミツトス
イツチ（位置決め手段、解除手段）、３５……伸
縮指示スイツチ（伸縮指示手段）、４２，４４…
…リレー（駆動保持手段）、６０……油圧モータ
（駆動装置）。 Figures 1 to 3 relate to an embodiment of this invention, with Figure 1 being an overall view of the boom device in a boom sprayer, Figure 2 being an electrical circuit diagram of the movement amount control section of the mobile boom, and Figure 3 being the mobile boom. 4 and 5 are structural diagrams of a conventional boom device, respectively. 10...Boom device, 12...Support boom, 1
4...Moving boom, 28...Nozzle, 30...Opening/closing operation unit, 32...Abutting body, 34...Limit switch (positioning means, release means), 35...Extension/contraction instruction switch (extension/contraction instruction means), 42 ,44...
...Relay (drive holding means), 60...Hydraulic motor (drive device).

補正平１．９．６図面の簡単な説明を次のように補正する。明細書中第２１頁第１８行の「４２，４４」を
次のとおり補正する。「４２，４８」Amendment 1.9.6 Hei 1. The brief description of the drawing is amended as follows. "42, 44" on page 21, line 18 of the specification is amended as follows. "42, 48"

Claims

[Claims for Utility Model Registration] (1) The movable boom 14 is supported movably in the longitudinal direction by the support boom 12 so that the amount of protrusion from the support boom 12 can be changed by driving the drive device 60; A plurality of nozzles 28 are arranged at equal pitch L1
The nozzles 28 are arranged on the support boom 12 and the movable boom 14, and the nozzles 28 that belong to one of the support boom 12 and the movable boom 14 spray. In the boom device 10 of the boom sprayer to be discontinued, the most proximal spraying nozzle 28 on the movable boom 14 and the most distal spraying nozzle 28 on the supporting boom 12
positioning means 34 for stopping the drive of the drive device 60 at a position where a distance L2 from the distance L2 to the pitch L1 is the pitch L1;
A boom device for a boom sprayer, characterized in that a boom device is provided with. (2) a movable boom 14 that is movably supported by the support boom 12 in the longitudinal direction so that the amount of protrusion from the support boom 12 changes; and the support boom 1;
2, a plurality of nozzles 28 attached to the support boom 12 and the movable boom 14 at equal pitches L1, and the support boom 12 and the movable boom. An opening/closing operation part 30 is provided on each nozzle 28 arranged on one side of the nozzle 14 and switches between starting and stopping spraying of the chemical solution from the nozzle 28 by displacement, and an opening/closing operation part 30 is fixed to the other of the support boom 12 and the movable boom 14. The support boom 12
and a contact body 32 that comes into contact with the opening/closing operation section 30 and displaces the opening/closing operation section 30 as the movable boom 14 moves relative to the moving boom 14. Instruction means 3
5, and a drive holding means 42 that maintains the drive of the drive device 60 even after the operation of the expansion/contraction instruction means 35 is released.
, 48, and when the distance L2 between the most distal spray nozzle 28 of the support boom 12 and the proximal spray nozzle 28 of the movable boom 14 reaches the pitch L1, the drive holding means 42, 48 are released. A boom device for a boom sprayer, characterized in that it has a release means 34 for stopping the drive device 60. (3) The boom device for a boom sprayer according to claim 1, wherein the release means 34 is a limit switch 34 operated by contact with the nozzle 28.