JPH0270046U - - Google Patents
Info
- Publication number
- JPH0270046U JPH0270046U JP14987988U JP14987988U JPH0270046U JP H0270046 U JPH0270046 U JP H0270046U JP 14987988 U JP14987988 U JP 14987988U JP 14987988 U JP14987988 U JP 14987988U JP H0270046 U JPH0270046 U JP H0270046U
- Authority
- JP
- Japan
- Prior art keywords
- turned
- switch
- vibration suppressing
- boom cylinder
- limit switch
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図はこの考案にかかる振動抑制装置用回路
図、第２図および第３図はそれぞれ第１図のＡ部
詳細図、第４図はホイール式シヨベルの側面図、
第５図は従来技術振動抑制装置用回路図である。
５……ブーム、７……バケツト、８……ブーム
シリンダ、１５……アキユムレータ、１７……電
磁切換弁、１８，２８……電気回路、１９……操
作スイツチ、２３……ブラケツト部材、２４……
リミツトスイツチ、２５……接触子、２６……サ
ポート部材、２７……リレー。
FIG. 1 is a circuit diagram for a vibration suppressing device according to this invention, FIGS. 2 and 3 are detailed views of section A in FIG. 1, and FIG. 4 is a side view of a wheeled shovel.
FIG. 5 is a circuit diagram for a prior art vibration suppression device. 5... Boom, 7... Bucket, 8... Boom cylinder, 15... Accumulator, 17... Solenoid switching valve, 18, 28... Electric circuit, 19... Operation switch, 23... Bracket member, 24... …
Limit switch, 25... contact, 26... support member, 27... relay.
Claims (1)
シリンダ８により回動可能に装着し、ブームシリ
ンダ８内ヘツド側油室２１とアキユムレータ１５
とを連通する油路に、電磁切換弁１７とスローリ
ターン弁１６を直列に連結して介設し、一方、電
気回路１８に操作スイツチ１９を設け、その操作
スイツチ１９をオン操作したとき上記アキユムレ
ータ１５とブームシリンダ８内ヘツド側油室２１
とを連通状態にして振動抑制を行うようにした振
動抑制装置において、下部走行体２の前部にブラ
ケツト部材２３およびリミツトスイツチ２４を固
定して設け、上記ブラケツト部材２３に接触子２
５を有するサポート部材２６を取付け、かつその
サポート部材２６上面側にバケツト７をのせたと
き上記接触子２５によりリミツトスイツチ２４を
オン作動可能とし、一方、上記電磁切換弁１７用
ソレノイド２２と操作スイツチ１９とを連通する
電路にリレー２７および上記リミツトスイツチ２
４を直列に接続して介設し、上記サポート部材２
６上面にバケツト７をのせて定置しかつ操作スイ
ツチ１９をオン操作したとき振動抑制機能を発揮
可能に構成したことを特徴とする作業車両の振動
抑制装置。 The boom 5 is rotatably mounted on the front part of the upper revolving structure 3 by a boom cylinder 8, and the boom cylinder 8 has a head side oil chamber 21 and an accumulator 15.
An electromagnetic switching valve 17 and a slow return valve 16 are connected in series and interposed in the oil passage communicating with the above.On the other hand, an operating switch 19 is provided in the electric circuit 18, and when the operating switch 19 is turned on, the above-mentioned accumulator 15 and boom cylinder 8 internal head side oil chamber 21
In this vibration suppressing device, a bracket member 23 and a limit switch 24 are fixedly provided at the front part of the lower traveling body 2, and a contactor 2 is connected to the bracket member 23.
5 and when the bucket 7 is placed on the upper surface of the support member 26, the limit switch 24 can be turned on by the contactor 25, while the solenoid 22 for the electromagnetic switching valve 17 and the operation switch 19 can be turned on. A relay 27 and the limit switch 2 are connected to the electric circuit communicating with the
4 are connected in series and interposed, and the support member 2
6. A vibration suppressing device for a work vehicle, characterized in that a bucket 7 is placed on the upper surface of the work vehicle, and the vibration suppressing function is exerted when the operation switch 19 is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14987988U JPH0645485Y2 (en) | 1988-11-16 | 1988-11-16 | Vibration suppression device for work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14987988U JPH0645485Y2 (en) | 1988-11-16 | 1988-11-16 | Vibration suppression device for work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0270046U true JPH0270046U (en) | 1990-05-28 |
| JPH0645485Y2 JPH0645485Y2 (en) | 1994-11-24 |
Family
ID=31422515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14987988U Expired - Lifetime JPH0645485Y2 (en) | 1988-11-16 | 1988-11-16 | Vibration suppression device for work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645485Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008002172A (en) * | 2006-06-22 | 2008-01-10 | Toshiba Mach Co Ltd | Construction machine equipped with a control valve having an anti-lifting function |
-
1988
- 1988-11-16 JP JP14987988U patent/JPH0645485Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008002172A (en) * | 2006-06-22 | 2008-01-10 | Toshiba Mach Co Ltd | Construction machine equipped with a control valve having an anti-lifting function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0645485Y2 (en) | 1994-11-24 |
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