JPH0296012U - - Google Patents

Description

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

第１図は本考案のナツトの抜止構造の一実施例
を示す断面図、第２図は第１図の−線に沿う
断面図、第３図は本考案の第２実施例を示す第１
図と同状図、第４図は第３図の−線に沿う断
面図、第５図は本考案の第３実施例を示す第１図
と同状図、第６図は第５図の−線に沿う断面
図、第７図は本考案の第４実施例を示す第１図と
同状図、第８図は第７図の−線に沿う断面図
である。 １……回転軸、３……ナツト、４，４ａ……抜
止体、７，７ａ……ばね、９……抜止体、１３…
…ばね。 Fig. 1 is a sectional view showing an embodiment of the nut slip-out prevention structure of the present invention, Fig. 2 is a sectional view taken along the - line of Fig.
Figure 4 is a sectional view taken along the - line in Figure 3, Figure 5 is a view similar to Figure 1 showing the third embodiment of the present invention, and Figure 6 is a view similar to Figure 5. 7 is a sectional view taken along the line -, FIG. 7 is a view similar to FIG. 1 showing a fourth embodiment of the present invention, and FIG. 8 is a sectional view taken along the line - of FIG. 7. DESCRIPTION OF SYMBOLS 1... Rotating shaft, 3... Nut, 4, 4a... Retaining body, 7, 7a... Spring, 9... Retaining body, 13...
...Spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転軸及び回転軸に螺着されるナツトのいずれ
か一方に、該回転軸の回転に伴う遠心力の作用で
該回転軸の径方向に変位することにより該回転軸
に対する前記ナツトの締付位置からの抜け外れを
阻止する抜止体を設け、該抜止体を、前記回転軸
の非回転時該回転軸に対する前記ナツトの脱着を
許容する位置にばねにより付勢したことを特徴と
するナツトの抜止構造。 The tightening position of the nut with respect to the rotating shaft is determined by displacing either the rotating shaft or the nut screwed onto the rotating shaft in the radial direction of the rotating shaft due to the action of centrifugal force accompanying the rotation of the rotating shaft. A nut retaining member is provided to prevent the nut from coming off from the nut, and the retaining member is biased by a spring to a position that allows the nut to be attached to and removed from the rotating shaft when the rotating shaft is not rotated. structure.