JPH0284054U - - Google Patents
Info
- Publication number
- JPH0284054U JPH0284054U JP16377288U JP16377288U JPH0284054U JP H0284054 U JPH0284054 U JP H0284054U JP 16377288 U JP16377288 U JP 16377288U JP 16377288 U JP16377288 U JP 16377288U JP H0284054 U JPH0284054 U JP H0284054U
- Authority
- JP
- Japan
- Prior art keywords
- pedal
- spring cylinder
- crank member
- traveling
- driver
- 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
- 238000010276 construction Methods 0.000 claims description 2
- 230000000881 depressing effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案にかかる走行用スイツチ操作
装置を示す系統図、第２図は第１図のＡ部詳細図
、第３図は走行用スイツチ操作装置の詳細回路図
、第４図は従来技術操作装置の一実施例を示す斜
視図、第５図は従来技術の走行用ペダル操作装置
、第６図は従来技術ペダル操作装置をそなえた建
設機械の走行用油圧回路図である。
３，３８……作業用操作レバー、６，１３……
ペダル、１０……ペダル操作装置、１６……パイ
ロツト弁、１９，１９′……ベルクランプ部材、
２４……走行用油圧モータ、３６……スイツチ操
作装置、３９……グリツプ部材、４０……引き金
部材、４３……電流値操作部スイツチ、４５……
ルーズスプリングシリンダ、４７……電磁比例弁
。
Fig. 1 is a system diagram showing the driving switch operating device according to this invention, Fig. 2 is a detailed view of section A in Fig. 1, Fig. 3 is a detailed circuit diagram of the driving switch operating device, and Fig. 4 is a conventional one. FIG. 5 is a perspective view showing an embodiment of the technical operating device, FIG. 5 is a conventional traveling pedal operating device, and FIG. 6 is a traveling hydraulic circuit diagram of a construction machine equipped with the conventional pedal operating device. 3, 38... Work operation lever, 6, 13...
Pedal, 10...Pedal operating device, 16...Pilot valve, 19, 19'...Bell clamp member,
24...Hydraulic motor for traveling, 36...Switch operation device, 39...Grip member, 40...Trigger member, 43...Current value operation unit switch, 45...
Loose spring cylinder, 47... Solenoid proportional valve.
Claims (1)
上部旋回体の運転室に足踏式ペダルを設け、さら
に上記ペダルの下面側付近に走行用パイロツト弁
を配置し、また、ペダル下面側にベルクランク部
材を設け、そのベルクランク部材の基端部を運転
室床板に回動自在に枢支し、かつベルクランク部
材の一端部をレバー金具を介してペダルの下面ブ
ラケツト部と連結し、さらにベルクランク部材の
他端部を上記走行用パイロツト弁の操作レバー部
に連結し、上記ペダルの踏込操作により走行用パ
イロツト切換弁を切換制御するようにした走行用
ペダル操作装置において、上記ベルクランク部材
の一端部と、運転室床板に連結するブラケツト部
材との間にルーズスプリングシリンダを介設し、
そのルーズスプリングシリンダと油圧ポンプとを
電磁比例弁を介して連結し、常時は上記ルーズス
プリングシリンダの油室を油タンクに連通状態可
能に設定し、電流値操作部スイツチの操作を行つ
たとき上記電磁比例弁を切換作動可能とするとと
もに、上記ルーズスプリングシリンダを縮小作動
可能に構成したことを特徴とする建設機械の走行
用スイツチ操作装置。 A hydraulic motor for travel is placed on the lower traveling body, a foot-operated pedal is provided in the driver's cab of the upper rotating body, a pilot valve for travel is placed near the bottom side of the pedal, and a bell is placed on the bottom side of the pedal. A crank member is provided, the proximal end of the bell crank member is rotatably supported on the floorboard of the driver's cabin, and one end of the bell crank member is connected to the bottom bracket part of the pedal via a lever metal fitting, and In the traveling pedal operation device, the other end of the crank member is connected to the operating lever portion of the traveling pilot valve, and the traveling pilot switching valve is switched and controlled by depressing the pedal. A loose spring cylinder is interposed between one end and a bracket member connected to the driver's cab floorboard,
The loose spring cylinder and the hydraulic pump are connected via an electromagnetic proportional valve, and the oil chamber of the loose spring cylinder is normally set to be in communication with the oil tank, and when the current value operation switch is operated, the above A running switch operating device for construction machinery, characterized in that an electromagnetic proportional valve is capable of switching operation, and the loose spring cylinder is configured to be capable of contracting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16377288U JPH0524844Y2 (en) | 1988-12-16 | 1988-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16377288U JPH0524844Y2 (en) | 1988-12-16 | 1988-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0284054U true JPH0284054U (en) | 1990-06-29 |
| JPH0524844Y2 JPH0524844Y2 (en) | 1993-06-23 |
Family
ID=31448794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16377288U Expired - Lifetime JPH0524844Y2 (en) | 1988-12-16 | 1988-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0524844Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008149877A1 (en) * | 2007-06-01 | 2008-12-11 | Honda Motor Co., Ltd. | Forklift |
-
1988
- 1988-12-16 JP JP16377288U patent/JPH0524844Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0524844Y2 (en) | 1993-06-23 |
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