JPS62130256U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案に係る変速操作構造の実施例を示
し、第１図は該変速操作構造の側面図、第２図は
該変速操作構造の正面図、第３図は変速操作の選
択構造を示す断面図、第４図は案内用開口を示す
平面図、第５図は農用トラクタの全体側面図であ
り、第６図は牽制機構との連係の別実施例を示す
断面図である。 ４……伝動ケース、１７ａ，１８ａ……変速操
作用のアーム、２０……牽制プレート、２１ｇ…
…ガイド用孔、３４……部材、３４ａ……支軸。 The drawings show an embodiment of the speed change operation structure according to the present invention, FIG. 1 is a side view of the speed change operation structure, FIG. 2 is a front view of the speed change operation structure, and FIG. 3 is a selection structure for the speed change operation. 4 is a plan view showing the guide opening, FIG. 5 is an overall side view of the agricultural tractor, and FIG. 6 is a sectional view showing another embodiment of the connection with the check mechanism. 4... Transmission case, 17a, 18a... Arm for gear change operation, 20... Check plate, 21g...
...Guide hole, 34... Member, 34a... Support shaft.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ギヤ式伝動ケース４に設けた変速操作用の２つ
のアーム１７ａ，１８ａが同時に変速位置に操作
されないよう、両アーム１７ａ，１８ａの操作系
に牽制機構が介装された変速操作構造であつて、
前記牽制機構が、一方のアーム１７ａと一体揺動
し、かつ、ガイド用孔２１ｇが形成された牽制プ
レート２０、及び他方のアーム１８ａと該他方の
アーム１８ａを操作する部材３４とを連結し、か
つ、前記ガイド用孔２１ｇに係入する支軸３４ａ
で構成されている変速操作構造。 A shift operation structure in which a check mechanism is interposed in the operation system of both arms 17a, 18a so that the two arms 17a, 18a for shift operation provided on the gear type transmission case 4 are not operated to the shift position at the same time,
The restraining mechanism connects a restraining plate 20 that swings together with one arm 17a and has a guide hole 21g formed therein, and the other arm 18a and a member 34 that operates the other arm 18a, and a support shaft 34a that engages in the guide hole 21g.
A gear shift operation structure consisting of.