JPH0161252U - - Google Patents
Info
- Publication number
- JPH0161252U JPH0161252U JP15354987U JP15354987U JPH0161252U JP H0161252 U JPH0161252 U JP H0161252U JP 15354987 U JP15354987 U JP 15354987U JP 15354987 U JP15354987 U JP 15354987U JP H0161252 U JPH0161252 U JP H0161252U
- Authority
- JP
- Japan
- Prior art keywords
- lever
- neutral position
- recess
- neutral
- locking piece
- 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.)
- Pending
Links
- 230000007935 neutral effect Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Mechanical Control Devices (AREA)
Description
第１図ないし第３図は本考案の実施例を示し、
第１図は操作構造の全体図、第２図は要部の拡大
図、第３図はバツクホウの側面図である。第４図
及び第５図は夫々、本考案の別実施例を示す構造
図であり、第６図は従来構造を示す図である。
３……作業機、６Ａ……レバー、１１Ａ，１１
Ｂ……中立付勢機構、１２……凹部、１３……係
止片、１４Ａ，１４Ｂ……カム部、Ｎ……中立位
置、Ｘ……揺動操作範囲。
1 to 3 show embodiments of the present invention,
FIG. 1 is an overall view of the operating structure, FIG. 2 is an enlarged view of the main parts, and FIG. 3 is a side view of the backhoe. FIGS. 4 and 5 are structural diagrams showing another embodiment of the present invention, and FIG. 6 is a diagram showing a conventional structure. 3... Work equipment, 6A... Lever, 11A, 11
B... Neutral biasing mechanism, 12... Recessed portion, 13... Locking piece, 14A, 14B... Cam portion, N... Neutral position, X... Rocking operation range.
Claims (1)
の揺動操作範囲Ｘにおける中央部の中立位置Ｎ側
に常時付勢する中立付勢機構１１Ａ，１１Ｂを設
け、前記レバー６Ａ又はそれに連動する連動機構
中において、凹部１２とその凹部１２に対して係
入する側に弾性付勢された係止片１３との係合に
より前記レバー６Ａを中立位置Ｎに保持し、かつ
、レバー操作に伴う前記凹部１２からの弾性変位
による前記係止片１３の離脱により前記レバー６
Ａの中立位置Ｎからの揺動操作を許容する中立保
持機構を設けたバツクホウのレバー操作構造であ
つて、前記中立保持機構において、前記凹部１２
の両外側に、前記係止片１３に対する接当カム作
用により中立位置Ｎ側への前記レバー６Ａの揺動
に対して制動作用するカム部１４Ａ，１４Ｂを設
けたバツクホウのレバー操作構造。 Neutral biasing mechanisms 11A and 11B are provided to constantly bias the swing operating lever 6A for the equipment work machine 3 toward the neutral position N at the center in its swing operating range X, and the lever 6A or the interlocking mechanism linked thereto is In this case, the lever 6A is held at the neutral position N by the engagement between the recess 12 and the locking piece 13 that is elastically biased toward the side that engages with the recess 12, and the recess 12 is held in the neutral position N when the lever is operated. Due to the detachment of the locking piece 13 due to elastic displacement from the lever 6
A lever operation structure for a backhoe provided with a neutral holding mechanism that allows a swinging operation from a neutral position N of A, in which the recess 12 is provided with a neutral holding mechanism.
A backhoe lever operating structure is provided with cam portions 14A and 14B on both outer sides thereof, which perform a braking action against the swinging of the lever 6A toward the neutral position N by a cam abutting action against the locking piece 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15354987U JPH0161252U (en) | 1987-10-07 | 1987-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15354987U JPH0161252U (en) | 1987-10-07 | 1987-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0161252U true JPH0161252U (en) | 1989-04-19 |
Family
ID=31429490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15354987U Pending JPH0161252U (en) | 1987-10-07 | 1987-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0161252U (en) |
-
1987
- 1987-10-07 JP JP15354987U patent/JPH0161252U/ja active Pending
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