JPH0444276U

JPH0444276U -

Info

Publication number: JPH0444276U
Application number: JP8548990U
Authority: JP
Priority date: 1990-08-14
Filing date: 1990-08-14
Publication date: 1992-04-15

Description

[Brief explanation of the drawing]

第１図及び第２図はこの考案による３段の伸縮
式ブーム装置の作動説明図であつて、第１図はブ
ーム収縮時、第２図はブーム伸長時を示し、第３
図ａは第１図における弾性支持装置１００の第１
実施例の詳細図で第３図ｂは第３図ａにおける
ｂ矢視図、第４図は弾性支持装置の第２実施例を
示し、第５図は移動式クレーン車の外観側面図、
第６図及び第７図は従来のホースリール装置をそ
なえた３段の伸縮式ブーム装置の作動説明図であ
る。１……ホース、２……第１ブーム、３……第２
ブーム、４……ホース、５……ホース用シーブ、
６……伸縮シリンダ、７……連結具、８……ワイ
ヤロープ用シーブ、９……ワイヤロープ、１００
……弾性支持装置、１０１……ばね、１０２……
ストローク制限ボルト、１０３……取付具Ａ、１
０４……取付具Ｂ、１１１……Ｕ型ホース、１１
２……ホース接手Ａ、１１３……ホース接手Ｂ、
１１４……ばね。 Figures 1 and 2 are explanatory diagrams of the operation of the three-stage telescoping boom device according to this invention, in which Figure 1 shows the boom when it is retracted, Figure 2 shows it when the boom is extended, and
Figure a shows the first part of the elastic support device 100 in Figure 1.
In the detailed drawings of the embodiment, FIG. 3b is a view in the direction of arrow b in FIG. 3a, FIG. 4 shows a second embodiment of the elastic support device, and FIG. 5 is an external side view of the mobile crane vehicle.
6 and 7 are explanatory views of the operation of a three-stage telescoping boom device equipped with a conventional hose reel device. 1...Hose, 2...First boom, 3...Second
Boom, 4...Hose, 5...Hose sheave,
6... Telescopic cylinder, 7... Connector, 8... Wire rope sheave, 9... Wire rope, 100
...Elastic support device, 101...Spring, 102...
Stroke limit bolt, 103...Mounting fixture A, 1
04... Fitting B, 111... U-shaped hose, 11
2...Hose joint A, 113...Hose joint B,
114...Spring.

Claims

[Scope of utility model registration request]

In a crane system for a cargo handling vehicle that has three or more stages of telescoping booms, oil is supplied to the telescoping cylinder that connects the second and third booms, one end of which is the first boom, and the other end of which is the telescoping cylinder of the second boom. The hose is supplied by a hose attached to the cylinder, which passes through a hose sheave that freely rolls on the side of the second boom, with one end of the hose sheave connected to the first boom and the other end of the hose A hose reel device in which a wire rope attached to a second boom is engaged with a wire rope sheave, the hose sheave being provided with means for elastically coupling to the boom. boom extension device.