JPH0318983Y2

JPH0318983Y2 -

Info

Publication number: JPH0318983Y2
Application number: JP18319585U
Authority: JP
Priority date: 1985-11-27
Filing date: 1985-11-27
Publication date: 1991-04-22
Also published as: JPS6293217U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は、トラクタ用油圧制御レバー装置等に
用いられる抵抗付与装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a resistance applying device used in a hydraulic control lever device for a tractor or the like.

（従来の技術）トラクタ用油圧制御レバーの操作力を任意の重
さに調整する抵抗付与装置として実開昭57−
108851号公報の技術がある。(Prior technology) Developed in 1982 as a resistance applying device that adjusts the operating force of a hydraulic control lever for a tractor to a desired weight.
There is a technique disclosed in Publication No. 108851.

すなわち、この技術は第４図、第５図の如く構
成されている。 That is, this technique is configured as shown in FIGS. 4 and 5.

第４・５図において、１はレバー支軸であり、
ポジシヨン用軸２とドラフト用軸３との２重軸構
造で、各内端に制御系に連動連結されるピン２
Ａ，３Ａを有し、油圧ハウジング４にボルト５を
介して取着された筒軸受で示す固定部材６にその
軸心回りに回動自在に支持されている。 In Figures 4 and 5, 1 is the lever support shaft;
Double shaft structure with positioning shaft 2 and drafting shaft 3, with pin 2 connected to the control system at each inner end.
A, 3A, and is rotatably supported around its axis by a fixed member 6 shown as a cylindrical bearing attached to the hydraulic housing 4 via a bolt 5.

レバー支軸１における軸２にはレバー基部７が
套嵌されボルトナツト８で取着され、レバー支軸
１における軸３にはレバー基部９が套嵌されてキ
ー１０で取着され、各レバー基部７，９にはポジ
シヨン用とドラフト用の制御レバー１１，１２が
取着されている。 A lever base 7 is fitted onto the shaft 2 of the lever support shaft 1 and attached with a bolt/nut 8, and a lever base 9 is fitted onto the shaft 3 of the lever support shaft 1 and attached with a key 10. Control levers 11 and 12 for positioning and drafting are attached to 7 and 9.

レバー基部７の軸方向両側には摩擦板１３が、
又、レバー基部９の軸方向両側には摩擦板１４が
それぞれレバー支軸１に套嵌されている。 Friction plates 13 are provided on both sides of the lever base 7 in the axial direction.
Furthermore, friction plates 14 are fitted onto the lever support shaft 1 on both sides of the lever base 9 in the axial direction.

固定部材６の外端にはフランジ１５が形成され
ており、このフランジ１５と軸方向に対向してバ
ネ押え板１６が設けられている。 A flange 15 is formed at the outer end of the fixing member 6, and a spring press plate 16 is provided axially facing the flange 15.

フランジ１５とバネ押え板１６との間に介在さ
れてレバー支軸１の両側に該レバー支軸１と軸方
向平行のデイスタンスカラー筒１７，１８が設け
られ、バネ押え板１６に挿通されてカラー筒１
７，１８のそれぞれに頭付のボルト１９が内挿さ
れ、フランジ１５にナツト２０を介して締付けら
れている。 Distance collar tubes 17 and 18 are provided on both sides of the lever support shaft 1 and are parallel to the lever support shaft 1 in the axial direction, interposed between the flange 15 and the spring support plate 16, and are inserted through the spring support plate 16. color tube 1
A bolt 19 with a head is inserted into each of 7 and 18, and is tightened to the flange 15 via a nut 20.

更に、２１は座板であり、最外側の座板２１と
バネ押え板１６との間にコイルバネ２２が設けら
れてレバー支軸１に套嵌されている。 Furthermore, 21 is a seat plate, and a coil spring 22 is provided between the outermost seat plate 21 and the spring holding plate 16, and is fitted onto the lever support shaft 1.

従つて、ナツト２０のボルト１９に対する締付
け加減によりバネ２２を介して摩擦板１３を押付
けてレバー１１，１２の操作力が調整可能とされ
ている。 Therefore, the operating force of the levers 11 and 12 can be adjusted by pressing the friction plate 13 via the spring 22 by tightening the nut 20 against the bolt 19.

（考案が解決しようとする問題点）第４図・第５図に示す従来の技術によると、デ
イスタンスカラー筒１７，１８が各ボルト１９に
それぞれ用いられていることから、操作力の調整
は該カラー筒１７，１８を初め摩擦板１３，１
４、レバー基部７，９等の各部品の寸法精度にバ
ラ付きがあつたり、摩擦板１３，１４に油が付着
したりすると、操作力が重すぎたり、軽くて振動
により脱落することがあつた。(Problems to be Solved by the Invention) According to the conventional technology shown in FIGS. 4 and 5, distance collar tubes 17 and 18 are used for each bolt 19, so adjustment of the operating force is difficult. The collar tubes 17 and 18 as well as the friction plates 13 and 1
4. If the dimensional accuracy of each part such as the lever bases 7 and 9 varies, or if oil adheres to the friction plates 13 and 14, the operating force may be too heavy, or the parts may fall off due to vibration if they are too light. Ta.

そこで、本考案はデイスタンスカラー筒を１ケ
だけ用い、一方はフリーにしてゆるみ止めナツト
の締付け位置で任意の締付け力をうるようにした
ものである。 Therefore, the present invention uses only one distance collar tube and leaves one free so that an arbitrary tightening force can be applied at the tightening position of the locking nut.

（問題点を解決するための手段）前述目的を達成するために講じる本考案の技術
的手段の特徴とする処は、制御系に連動連結され
るレバー支軸１が固定部材６に軸心回りに回動自
在に支持されており、該レバー支軸１に取着され
たレバー基部７，９の軸方向両側に位置して摩擦
板１３，１４がレバー支軸１に套嵌されており、
固定部材６と、これと軸方向に対向するバネ押え
板１６との間にデイスタンスカラー筒１８が設け
られ、該カラー筒１８に挿通されて固定部材６と
バネ押え板１６とを締付けるボルト１９が備えら
れ、前記レバー支軸１に套嵌されたバネ２２を前
記ボルト１９で軸方向に押付けて摩擦板１３，１
４を介して抵抗を付与するものにおいて、前記ボルト１９はレバー軸１を挟む両側にレバ
ー軸１と軸方向平行に備えられており、一方のボ
ルト１９はカラー筒１８に内挿され、他方のボル
ト１９はカラー筒１８に内挿されておらず、該他
方のボルト１９はバネ押え板１６にスキマ２３を
有して挿通され、該スキマ２３を介してバネ押え
板１６が変形すべくボルト１９にナツト２０が螺
合されている点にある。(Means for Solving the Problems) The technical means of the present invention taken to achieve the above-mentioned object is characterized by the fact that the lever support shaft 1, which is interlocked and connected to the control system, is attached to the fixed member 6 around its axis. Friction plates 13 and 14 are fitted around the lever support shaft 1, and friction plates 13 and 14 are positioned on both sides of the lever bases 7 and 9 in the axial direction, which are attached to the lever support shaft 1.
A distance collar tube 18 is provided between the fixing member 6 and a spring retainer plate 16 that faces the same in the axial direction, and a bolt 19 is inserted through the collar tube 18 and tightens the fixing member 6 and the spring retainer plate 16. The spring 22 fitted on the lever support shaft 1 is pressed in the axial direction with the bolt 19 to close the friction plates 13 and 1.
4, the bolts 19 are provided on both sides of the lever shaft 1 in parallel with the lever shaft 1 in the axial direction, one bolt 19 being inserted into the collar tube 18, and the other bolt 19 being inserted into the collar tube 18. The bolt 19 is not inserted into the collar cylinder 18, but the other bolt 19 is inserted through the spring holding plate 16 with a gap 23, and the bolt 19 is inserted through the gap 23 so that the spring holding plate 16 is deformed. The nut 20 is screwed together.

（実施例と作用）以下、図面を参照して本考案の実施例を詳述す
る。(Embodiments and Operations) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

第１図と第４図および第３図と第５図とを対比
すれば明らかな如く、前述従来技術（第４図、第
５図）と共通する部材は共通符号で示し、以下、
相違点（改良点）について説明する。 As is clear from comparing FIG. 1 and FIG. 4, and FIG. 3 and FIG.
The differences (improvements) will be explained.

フランジ１５には雌ネジ孔１５Ａが形成してあ
り、ボルト１９はその軸方向両端に雄ネジ部１９
Ａを有し、各雄ネジ部１９Ａの一端が雌ネジ孔１
５Ａにバネ押え板１６のボルト挿通孔１６Ａを介
して螺合され、各雄ネジ部１９Ａの他端部に弛み
止め付ナツト２０が螺合されている。 A female threaded hole 15A is formed in the flange 15, and the bolt 19 has a male threaded portion 19 at both ends in the axial direction.
A, and one end of each male screw part 19A is a female screw hole 1.
5A through the bolt insertion hole 16A of the spring holding plate 16, and a locking nut 20 is screwed to the other end of each male threaded portion 19A.

カラー筒１８は一方のみに使用され、他方はボ
ルト１９のみとされており、このカラー筒１７を
有しない側のボルト１９側にあつては、ボルト径
（実質的に雄ネジ外径）よりもボルト挿通孔１６
Ａの径が大とされ、ここに、ナツト２０の締付け
位置によりボルト径と孔との間のスキマ２３だけ
は少なくともバネ押え板１６が弾性復元可能に変
形するようにされている。 The collar tube 18 is used only on one side, and the other side is used only for the bolt 19, and on the side of the bolt 19 that does not have the collar tube 17, the diameter is larger than the bolt diameter (substantially the outer diameter of the male thread). Bolt insertion hole 16
The diameter of A is made large, and at least the gap 23 between the bolt diameter and the hole is deformed so that at least the spring press plate 16 can be elastically restored depending on the tightening position of the nut 20.

従つて、ナツト２０の締付け位置で任意の締付
力が得られるようにされている。 Therefore, any tightening force can be obtained at the tightening position of the nut 20.

更に、座板２１には一方のみにカラー筒１８が
挿通されるようにされ、また、コイルバネ２２は
小径巻きのバネ２２Ａと大径巻きのバネ２２Ｂの
２重構造とされ、しかも、巻き方向は互いに逆と
されている。 Furthermore, the collar tube 18 is inserted into the seat plate 21 only on one side, and the coil spring 22 has a double structure of a small diameter spring 22A and a large diameter spring 22B, and the winding direction is are considered to be opposites of each other.

なお、本考案は油圧制御レバーの他各種のレバ
ー類に適用できる。 Note that the present invention can be applied to various levers other than hydraulic control levers.

（考案の効果）本考案によれば、カラー筒１８を有しない側の
ボルト１９はバネ押え板１６に対してすきま２３
を有しており、ナツト２０の締付け位置でバネ押
え板１６の変形により任意の締付力が得られるの
であり、ここに、各部品の寸法精度（製作誤差）
に多少の狂いがあつても、レバー操作力を適正値
に調整できる。(Effect of the invention) According to the invention, the bolt 19 on the side that does not have the collar tube 18 has a clearance 23 with respect to the spring holding plate 16.
An arbitrary tightening force can be obtained by deforming the spring retaining plate 16 at the tightening position of the nut 20, and the dimensional accuracy (manufacturing error) of each part
Even if there is some deviation in the lever operation force, the lever operation force can be adjusted to the appropriate value.

また、部品点数も少なくなるので、組立分解も
容易となるし、従来の如くデイスタンスカラー筒
１７，１８の長短２種の組替えなども必要でなく
なり、ローコストなものを提供きる。 Further, since the number of parts is reduced, assembly and disassembly becomes easy, and there is no need to rearrange the distance collar tubes 17, 18 into two types, long and short, as in the past, and a low-cost product can be provided.

[Brief explanation of the drawing]

第１図は本考案実施例の分解斜視図、第２図は
組立断面背面図、第３図は同じく断面平面図、第
４図は従来例の分解斜視図、第５図は同じく組立
断面平面図である。１……レバー支軸、６……固定部材、７，９…
…レバー基部、１３，１４……摩擦板、１６……
バネ押え板、１９……ボルト、２０……ナツト、
２２……バネ、２３……スキマ（すきま）。 Fig. 1 is an exploded perspective view of the embodiment of the present invention, Fig. 2 is an assembled cross-sectional rear view, Fig. 3 is a cross-sectional plan view, Fig. 4 is an exploded perspective view of the conventional example, and Fig. 5 is an assembled cross-sectional plane. It is a diagram. 1...Lever support shaft, 6...Fixing member, 7, 9...
...Lever base, 13, 14...Friction plate, 16...
Spring holding plate, 19... bolt, 20... nut,
22...Spring, 23...Gap.

Claims

[Claims for Utility Model Registration] A lever support shaft 1 that is interlocked and connected to a control system is supported by a fixed member 6 so as to be rotatable around the axis, and a lever base 7 is attached to the lever support shaft 1. . A tube 18 is provided, and a bolt 19 is provided which is inserted through the collar tube 18 and tightens the fixing member 6 and the spring holding plate 16. The bolts 19 are provided on both sides of the lever shaft 1 in parallel with the lever shaft 1 in the axial direction, and one of the bolts 19 is attached to the collar cylinder 18. The other bolt 19 is not inserted into the collar cylinder 18, and the other bolt 19 is inserted into the spring holding plate 16 with a gap 23, and the spring holding plate is inserted through the gap 23. A resistance imparting device for a control lever for a tractor, characterized in that a nut 20 is screwed onto a bolt 19 so that the lever 16 is deformed.