JPS6447787U

JPS6447787U -

Info

Publication number: JPS6447787U
Application number: JP14293287U
Authority: JP
Priority date: 1987-09-21
Filing date: 1987-09-21
Publication date: 1989-03-24

Description

[Brief explanation of the drawing]

第１図は本考案のクレーンフツクの回転ロツク
機構を適用したフツクブロツクの構成を示す概念
的構成図、第２図は第１図のフツク係止部の要部
斜視図、第３図は第１図の係止板の取り付け構造
を示す要部斜視図、第４図は従来のフツクブロツ
クを示す概念的構成図である。１′…フツクブロツク、２…シヤツクルプレー
ト、４…シーブ、７…フツク、７ｄ…係止部、９
…ナツト部材、１１…回転ロツク機構、１２…係
止板、１２ａ…パイプ、１２ｃ…係止孔、１３…
軸、１５，１６…係止部材。 Fig. 1 is a conceptual block diagram showing the structure of a hook block to which the crane hook rotation locking mechanism of the present invention is applied, Fig. 2 is a perspective view of the main part of the hook locking part of Fig. FIG. 4 is a perspective view of a main part showing the attachment structure of the locking plate shown in the figure, and FIG. 4 is a conceptual configuration diagram showing a conventional hook block. 1'... Hook block, 2... Shackle plate, 4... Sheave, 7... Hook, 7d... Locking part, 9
... Nut member, 11... Rotation lock mechanism, 12... Locking plate, 12a... Pipe, 12c... Locking hole, 13...
Shaft, 15, 16...Locking member.

Claims

[Scope of utility model registration request]

a pair of shackle plates facing each other, a sheave pin whose both ends are respectively supported by the pair of shackle plates, at least a pair of sheaves rotatably supported by the sheave pins, and at least one of the pair of shackle plates. a side plate fixed to a side edge of the shaft; a trunnion shaft having both ends supported by the pair of shaft plates and having a hook hole approximately in the center; A nut member screwed onto the proximal end portion of the hook protruding from the trunnion shaft, and a nut member interposed between the upper surface of the trunnion shaft and the lower surface of the nut member to support the hook rotatably with respect to the trunnion shaft. In the hook rotation locking mechanism of a crane hook block, the hook is provided with a locking portion on the proximal end surface of the hook, one end of the locking plate is rotatably attached to the side plate, and the other end of the locking plate is rotatably attached to the side plate. When locking the rotation of the hook by forming a locking hole that can be externally fitted onto the locking part and preventing the rotation of the locking part, the locking plate should be horizontally inserted into the locking plate. A hook rotation locking mechanism for a crane hook block, characterized in that a locking hole is locked to a locking portion of the hook.