To provide a telescopic boom lubrication structure which can reduce at least one of a member or installation space by making a spacing part and a lubrication part common.SOLUTION: Multiple booms 31, 32 are inserted so as to be telescopic, a slide plate 34 held in a retainer 36 is interposed between the booms 31 and 32, and a grease discharge outlet 35 for supplying lubricating grease is provided between the adjacent booms 31 and 32. The retainer 36 has the grease discharge outlet 35 formed at a position where a holding pin 41 for holding a shim 37 is provided. The slide plate 34 has a continuous hole 45 penetrating from an attachment surface 34a abutting on the retainer 36 or the shim 37 to a sliding contact surface 34c which faces the adjacent boom 31. The continuous hole 45 communicates with the grease discharge outlet 35 and leads the discharged grease from the attachment surface 34a to the sliding contact surface 34c.SELECTED DRAWING: Figure 5

    【課題】主に、間隔保持部および潤滑部の共通化によって、部材または設置スペースの少なくとも一方を削減し得るようにする。【解決手段】複数のブーム31,32が入れ子状に伸縮可能に嵌挿され、ブーム31,32に、リテーナ36に保持されたスライドプレート34が介在され、隣接するブーム31,32間に潤滑用のグリスを供給するグリス吐出口35が設けられる。リテーナ36は、シム37を保持する保持ピン41を設ける位置に、グリス吐出口35が形成される。スライドプレート34は、リテーナ36またはシム37と当接する取付面34aから、隣接するブーム31に面する摺接面34cまで貫通した連通孔45が設けられる。連通孔45は、グリス吐出口35と連通して、吐出されたグリスを取付面34aから摺接面34cに導く。【選択図】図5


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    Title :

    TELESCOPIC BOOM LUBRICATION STRUCTURE


    Additional title:

    伸縮ブームの潤滑構造


    Contributors:

    Publication date :

    2024-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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