JPS61191391U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案一実施例の横断平面図（第２図
の―断面図）、第２図はその側面図、第３図
は要部の斜視図、第４図はトラツククレーン旋回
時の概略を示す平面図、第５図は従来型装置の平
面図、第６図は従来型装置を備えるトラツククレ
ーン旋回時の平面図である。 ８……伸縮ブーム、９……先端ブーム、１０…
…連結金具、１１……自動車、１２……運転室、
１３……クレーン基台、１４……主巻索経由滑車
、１５……補巻索経由滑車、１８……ルースタシ
ーブ、２１……フツクブロツク吊下用滑車、２３
……補巻索。 Fig. 1 is a cross-sectional plan view (cross-sectional view of Fig. 2) of an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a perspective view of the main parts, and Fig. 4 is a truck crane when turning. FIG. 5 is a plan view schematically showing a conventional device, and FIG. 6 is a plan view of a truck crane equipped with the conventional device when the truck crane is turning. 8...Telescopic boom, 9...Tip boom, 10...
...Connection fittings, 11...Automobile, 12...Driver's cab,
13... Crane base, 14... Pulley via main winding cable, 15... Pulley via auxiliary winding cable, 18... Rooster sheave, 21... Pulley for hoisting block, 23
...Supplementary winding cable.

Claims (1)

【実用新案登録請求の範囲】 (1) ブーム先端に設けたフツクブロツク吊下用
滑車取付部の両側壁板先端に平面先細りのルース
タシーブ支盤の基部両端を、夫々該ルースタシー
ブ支盤と直交する抜差自在の連結ピンで取付けた
トラツククレーンにおいて、ルースタシーブ支盤
１の基部一側より側方に腕２を突出させ、該腕取
付側の連結ピン３を支点としてルースタシーブ支
盤１を、そのブーム先端への取付位置より一定鋭
角だけ旋回した時に、腕２の先端を連結ピンで枢
架し得るブラケツト５をフツクブロツク吊下用滑
車取付部の対応側壁板６に突出固着し、腕２とブ
ラケツト５の前記連結ピンを支点として該対応側
壁板６にルースタシーブ支盤１を折畳んだ時に、
該両者を連結ピン３で結合する分離自在な結合手
段を設けたことを特徴とするルースタシーブ支盤
の折畳装置。 (2) 実用新案登録請求の範囲第(1)項記載のルー
スタシーブ支盤の折畳装置において、折畳んだル
ースタシーブ支盤が、最小回転半径で旋回するト
ラツククレーンのブーム先端の最大軌跡の内側に
位置するように、一定鋭角の大きさを設定したも
の。[Scope of Claim for Utility Model Registration] (1) Both ends of the base of the rooster sheave support plate, which is tapered in plane, are inserted and removed perpendicularly to the rooster sheave support plate at the end of both side wall plates of the pulley attachment part for lifting the hook block provided at the tip of the boom. In a truck crane attached with a flexible connecting pin, an arm 2 is protruded laterally from one side of the base of the rooster sheave support 1, and the rooster sheave support 1 is moved to the tip of the boom using the connecting pin 3 on the side where the arm is attached as a fulcrum. When the arm 2 is rotated by a certain acute angle from its mounting position, a bracket 5, which can pivot the tip of the arm 2 with a connecting pin, protrudes and is fixed to the corresponding side wall plate 6 of the pulley attachment part for hanging the hook block, and the above-mentioned position of the arm 2 and the bracket 5 is When the rooster sheave support plate 1 is folded onto the corresponding side wall plate 6 using the connecting pin as a fulcrum,
A folding device for a rooster sheave base, characterized in that a separable coupling means is provided for coupling the two with a coupling pin 3. (2) In the folding device for a rooster sheave support base set forth in claim (1) of the utility model registration, the folded rooster sheave support base is located inside the maximum locus of the boom tip of a truck crane that rotates with a minimum turning radius. The size of a constant acute angle is set so that the