DRUM BRAKE DEVICE

PROBLEM TO BE SOLVED: To reduce the possibility of over-adjustment during braking.SOLUTION: A drum brake device includes an adjust block mechanism 80 having an adjust block lever 81 and a moving member 82. The moving member 82 is provided so as to move between a first position and a second position,...

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Bibliographic Details
Main Authors NISHII KAZUTOSHI, NISHIDA NAOTAKA, SUZUKI MASAZUMI, HIRAMATSU YUKIO
Format Patent
LanguageEnglish
Japanese
Published 26.11.2015
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Summary:PROBLEM TO BE SOLVED: To reduce the possibility of over-adjustment during braking.SOLUTION: A drum brake device includes an adjust block mechanism 80 having an adjust block lever 81 and a moving member 82. The moving member 82 is provided so as to move between a first position and a second position, which are separated from each other in a circumferential direction, in a window W opened in a shoe rim 32 and a lining 33. The moving member 82 is positioned in the second position by torque applied from a drum 10 when contacting with the drum 10. When the moving member 80 is in the second position, the adjust block lever 81 enters into a swing range of an adjust lever 74 to block adjust movement. 【課題】 制動時におけるオーバーアジャストの発生する可能性を低減する。【解決手段】 ドラムブレーキ装置は、アジャスト阻止レバー81と移動部材82とを有するアジャスト阻止機構80を備えている。移動部材82は、シューリム32とライニング33に開口された窓W内を、周方向に離れた第1位置と第2位置との間を移動可能に設けられている。移動部材82は、ドラム10と接触した場合に、ドラム10から付与されるトルクによって第2位置に位置決めされる。移動部材80が第2位置にいる場合、アジャスト阻止レバー81がアジャストレバー74の揺動範囲に進入し、アジャスト動作を阻止する。【選択図】 図1
Bibliography:Application Number: JP20140095989