JPH0246792U

JPH0246792U -

Info

Publication number: JPH0246792U
Application number: JP12537988U
Authority: JP
Priority date: 1988-09-26
Filing date: 1988-09-26
Publication date: 1990-03-30

Description

[Brief explanation of drawings]

第１図は本考案にかかるラツチアーム型グラブ
バケツトの一実施例を示す正面図、第２図はその
側面図、第３図はそのシーブの配置を示す平面図
、第４図は従来例を示す正面図、第５図はその側
面図、第６図はそのシーブの配置を示す部分平面
図、第７図はその開閉ロープの捲回状態の説明図
である。１…グラブ、２…バケツト、３…支持アーム、
４…ヒンジ軸、５…開閉アーム、５ａ…ラツチア
ーム、６ａ…ロツト軸、７，９…シーブ、１０…
開閉ロープ、１１…吊支ロープ。 Fig. 1 is a front view showing an embodiment of the latch arm type grab bucket according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view showing the arrangement of the sheaves, and Fig. 4 is a front view showing a conventional example. 5 is a side view thereof, FIG. 6 is a partial plan view showing the arrangement of the sheaves, and FIG. 7 is an explanatory view of the winding state of the opening/closing rope. 1...Glove, 2...Bucket, 3...Support arm,
4... Hinge shaft, 5... Opening/closing arm, 5a... Latch arm, 6a... Rod shaft, 7, 9... Sheave, 10...
Opening/closing rope, 11... Suspension rope.

Claims

[Scope of Claim for Utility Model Registration] (1) A pair of right and left grabs are connected to opening/closing arms that face each other on the outside and support arms that face each other on the inside, and the upper ends of both opening/closing arms and the upper ends of both support arms. two sheaves are rotatably connected to one of the opening/closing arms, and one latch arm is rotatably supported to the shaft of the support arm. In a latch arm type grab bucket which has sheaves rotatably supported and opening/closing ropes wound around the sheaves, one sheave is rotatably supported on each of the opening/closing arm and the latch arm, and the opening/closing ropes are wound between the two sheaves. A latch arm type grab bucket characterized by being wound around two sheaves. (2) A pair of left and right grabs is connected to an opening/closing arm that faces each other on the outside and a support arm that faces each other on the inside, and the upper ends of both opening/closing arms and the upper ends of both support arms are each connected to a shaft that can be rotated. two sheaves are rotatably supported on one of the opening/closing arms, and one sheave is rotatably supported on a latch arm that is rotatably supported on the shaft of the support arm. In a latch arm type grab bucket in which opening/closing ropes are wound around these sheaves, one sheave is rotatably attached to each of the opening/closing arm and the latch arm, and these two sheaves are arranged in the same vertical plane that coincides with the center of the bucket. A latch arm type grab bucket. (3) A pair of left and right grabs is connected with an opening/closing arm that faces each other on the outside and a support arm that faces each other on the inside, and the upper ends of both opening/closing arms and the upper ends of both support arms are each connected to a shaft that can be rotated. two sheaves are rotatably supported on one of the opening/closing arms, and one sheave is rotatably supported on a latch arm that is rotatably supported on the shaft of the support arm. However, in a latch arm type grab bucket in which opening/closing ropes are wound around these sheaves, one sheave is rotatably attached to each of the opening/closing arm and the latch arm, and these two sheaves are arranged in the same vertical plane that coincides with the center of the bucket. The opening/closing ropes are arranged so as to have a vertical positional relationship, and the opening/closing ropes are inserted from above into the lower sheaves from the upper sheaves so that the opening/closing ropes between the sheaves are placed close to horizontally. Latch arm type grab bucket. (4) Connect the opening/closing arms facing each other on the outside and the support arms facing each other on the inside to the left and right pair of grabs, and connect the upper ends of both opening/closing arms and the upper ends of both support arms to pivotable shafts. two sheaves are rotatably supported on one of the opening/closing arms, and one sheave is rotatably supported on a latch arm that is rotatably supported on the shaft of the support arm. However, in a latch arm type grab bucket in which opening/closing ropes are wound around these sheaves, one sheave is rotatably attached to each of the opening/closing arm and the latch arm, and these two sheaves are arranged in the same vertical plane that coincides with the center of the bucket. arranged so that they have a vertical positional relationship,
The opening/closing rope is put from above into the lower sheave from the upper sheave, and the opening/closing rope between the sheaves is positioned close to horizontally, and the hoisting force of the opening/closing rope is applied horizontally between both sheaves, thereby creating a bucket. A latch arm type grab bucket characterized by improving the gripping force just before closing.