JPH0453786U

JPH0453786U -

Info

Publication number: JPH0453786U
Application number: JP9585090U
Authority: JP
Priority date: 1990-09-12
Filing date: 1990-09-12
Publication date: 1992-05-08

Description

[Brief explanation of drawings]

第１図は本考案を実施したジブクレーンの正面
図、第２図は本考案に使用されるレーザーマーキ
ングプロジエクターの斜視図、第３図は同、光線
マーキングプロジエクターの斜視図、第４図は本
考案を実施したホイストクレーンの正面図、第５
図は同、ホイスト本体部の斜視図、第６図はジブ
クレーンによる従来技術の説明図、第７図はホイ
ストクレーンによる従来技術の説明図である。主要部分の符号の説明、１，１′……垂直確認
装置、２……吊子型保持器、３……レーザーマー
キングプロジエクター、３′……光線マーキング
プロジエクター、４……ホイスト本体、Ｂ……ブ
ーム、Ｆ……フツク、Ｈ……ホイストクレーン、
Ｊ……ジブクレーン、Ｋ……掛止部、Ｌ……レー
ザー光線または光線、Ｍ……マーキングスポツト
、Ｒ……荷物、Ｔ……玉掛け、Ｖ……垂下線、Ｗ
……ワイヤロープ、α，β……間隔。 Figure 1 is a front view of a jib crane implementing the present invention, Figure 2 is a perspective view of a laser marking projector used in the invention, Figure 3 is a perspective view of the same laser marking projector, and Figure 4 is a perspective view of the same laser marking projector. Front view of the hoist crane implementing this invention, No. 5
The figures are a perspective view of the hoist body, FIG. 6 is an explanatory diagram of a conventional technique using a jib crane, and FIG. 7 is an explanatory diagram of a conventional technique using a hoist crane. Explanation of symbols of main parts, 1, 1'...Vertical confirmation device, 2...Hanger type holder, 3...Laser marking projector, 3'...Light beam marking projector, 4...Hoist body, B ...Boom, F...Hook, H...Hoist crane,
J... Jib crane, K... Latching part, L... Laser beam or beam, M... Marking spot, R... Luggage, T... Sling, V... Hanging line, W
...Wire rope, α, β...interval.

Claims

[Scope of Claim for Utility Model Registration] (1) A laser marking projector or a light beam marking projector is placed close to the upper end base of a lifting wire rope such as a jib crane or a hoist crane so that the laser beam or light beam is parallel to the suspended wire rope. A vertical confirmation device for cranes that is installed facing downward. (2) The vertical confirmation device for a crane according to claim (1), wherein a laser marking projector or a light beam marking projector is attached downward to the end of the boom of the jib crane near the end of the pulley shaft via a hanger type retainer. (3) The crane vertical confirmation device according to claim (1), wherein a laser marking projector or a light beam marking projector is fixed near the center of the hoist body of the hoist crane so as to face directly below.