BLADE ATTACHMENT STRUCTURE OF LAWN MOWER

PROBLEM TO BE SOLVED: To provide a blade attachment structure of a lawn mower, capable of absorbing an impact load by moving a friction member and easily centering a lawn mowing blade.SOLUTION: A blade attachment structure 20 of a lawn mower includes: a drive hub 26 installed on an output shaft 16;...

Full description

Saved in:
Bibliographic Details
Main Authors IKENO TETSURO, HASEI SHOJI
Format Patent
LanguageEnglish
Japanese
Published 02.11.2015
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
FISHING
FORESTRY
HARVESTING
HUMAN NECESSITIES
HUNTING
MOWING
TRAPPING
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a blade attachment structure of a lawn mower, capable of absorbing an impact load by moving a friction member and easily centering a lawn mowing blade.SOLUTION: A blade attachment structure 20 of a lawn mower includes: a drive hub 26 installed on an output shaft 16; a friction member 27 transmitting driving force of the drive hub 26 to a blade holder 28. A hub curved surface 36 of the drive 26 and a friction curved surface 38 of the friction member 27 are formed while curved so as to slide mutually. In a space 57 between the blade holder 28 and the drive hub 26, an energy absorbing member 32 is arranged. The energy absorbing member 32 keeps the shape during normal work and is deformed in application of a load exceeding a predetermined value. 【課題】摩擦部材を移動させて衝撃荷重を吸収でき、かつ、芝刈ブレードの芯出しを容易にできる芝刈機のブレード取付構造を提供する。【解決手段】芝刈機のブレード取付構造２０は、出力軸１６に設けられた駆動ハブ２６と、駆動ハブ２６の駆動力をブレードホルダ２８に伝達する摩擦部材２７とを備えている。駆動ハブ２６のハブ湾曲面３６と、摩擦部材２７の摩擦湾曲面３８とが相互にスライド可能に湾曲形成されている。また、ブレードホルダ２８および駆動ハブ２６間の空間５７にエネルギ吸収部材３２が配されている。エネルギ吸収部材３２は、通常作業時には形状を保ち、所定値を超えた負荷がかかった時に変形するように形成されている。【選択図】図２
Bibliography:Application Number: JP20140065977