PROBLEM TO BE SOLVED: To inhibit the lengthening of center shafts themselves for holding rotary drums around which both end sides of a single rope for carrying a load are wound, and which are linked with each other; to prevent the entanglement of the rope on a winding part; and to facilitate operation for releasing a coupling state between the rotary drums (length adjustment of the reciprocating part of the rope).SOLUTION: A reciprocating side part 31a of an upper side rope is wound around inner and outer rotary drums 12 and 13 on an upper side, and then a free end side part 31b is formed. A reciprocating side part 32a of a lower side rope with a load attached thereto is wound around inner and outer rotary drums 14 and 15 on a lower side, and then a free end side part 32b is formed. The free end side parts 31b and 32b are individually driven. Recessed guide parts 12a and 14a each for guiding the rope are formed on the outer peripheral surfaces of the respective rotary drums. Pairs of the upper and lower rotary drums are coupled by upper gears 12b and 13b and lower gears 14b and 15b, and the gear coupling is released by rotary operation of a turnbuckle fastening holding center shafts 11e and 11j thereof.

    【課題】荷物運搬用の単一ロープの両端側が巻回されて連動状態の回転ドラムを保持する中心軸自体が長くなるのを抑え、巻回部分のロープ絡みを防ぎ、また、回転ドラム同士の結合状態の解除作業(往復動ロープ部分の長さ調整)を容易にする。【解決手段】上側ロープの往復動側部分31aは上側内外の回転ドラム12,13に巻回されてから自由端側部分31bとなる。荷物が取り付けられた下側ロープの往復動側部分32aは下側内外の回転ドラム14,15に巻回されてから自由端側部分32bとなる。自由端側部分31b,32bは個々に駆動される。各回転ドラムの外周面にはロープ案内用の凹状ガイド部12a,14aが形成されている。上下一対の回転ドラムは上歯車12b,13bと下歯車14b,15bとで結合しており、その保持中心軸11e,11jを固定したターンバックルの回転操作により当該歯車結合が解除される。【選択図】図2


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    Title :

    TRACTIVE FORCE REDUCING DEVICE FOR CARRYING LOAD


    Additional title:

    荷物運搬用の牽引力低減装置


    Contributors:

    Publication date :

    2015-07-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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    Tractive force of locomotives

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    Lubimoff, W. | Engineering Index Backfile | 1934


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