JPS61191390U

JPS61191390U -

Info

Publication number: JPS61191390U
Application number: JP7691485U
Authority: JP
Priority date: 1985-05-22
Filing date: 1985-05-22
Publication date: 1986-11-28
Also published as: JPH0340865Y2

Description

[Brief explanation of the drawing]

第１図は第２図に示すトラツククレーンのクレ
ーン装置部分の分解拡大斜視図、第２図は本考案
実施例に係る補助ジブ取付構造を有するトラツク
クレーンの全体図、第３図ないし第５図は第２図
のトラツククレーンのブーム及び補助ジブ部分の
状態変化図、第６図は第２図の―矢視図、第
７図は第３図の―矢視図、第８図は第４図の
―矢視図、第９図は第５図の―矢視図で
ある。１……ブーム、２……補助ジブ、６……作動力
伝達部材、１１……ベースブーム、１３……トツ
プブーム、２１……ジブ本体、２２……ジブ基台
、７１，７２……ジブ連結ピン。 Fig. 1 is an exploded enlarged perspective view of the crane device portion of the truck crane shown in Fig. 2, Fig. 2 is an overall view of the truck crane having an auxiliary jib mounting structure according to an embodiment of the present invention, and Figs. 3 to 5. is a state change diagram of the boom and auxiliary jib portion of the truck crane in Figure 2, Figure 6 is a view in the direction of the - arrow in Figure 2, Figure 7 is a view in the direction of the - arrow in Figure 3, and Figure 8 is a view in the direction of the -4 arrow in Figure 3. FIG. 9 is a view in the direction of the arrow in FIG. 5. 1...Boom, 2...Auxiliary jib, 6...Working force transmission member, 11...Base boom, 13...Top boom, 21...Jib body, 22...Jib base, 71, 72...Jib connection pin.

Claims

[Scope of utility model registration request]

A crane with an auxiliary jib, which has a telescoping boom having a base boom 11 located at the most proximal end and a top boom 13 located at the most distal end, and an auxiliary jib 2 stored on the side of the boom 1, The auxiliary jib 2 is removably connectable to the front surface of the tip of the top boom 13 by a pair of left and right jib connecting pins 71 and 72 that are appropriately spaced apart from each other in a direction substantially perpendicular to the axial direction of the boom 1. A jib base 22 that is capable of pivoting laterally around one of the pair of joint pins 71 and 72, and the jib base 22 A jib body 21 of an appropriate length is connected to the boom body 21 so as to be pivotable in the vertical direction. 1, the jib main body 21 is pivoted vertically relative to the jib base 22, and the jib base 22 is pivoted laterally about the one connecting pin (71 or 72). An appropriate operating force transmission member 6 is removably attached, which acts to extend the auxiliary jib 12 from its storage position to the front of the tip of the top boom 13 or to retract it from the extended position by rotating the auxiliary jib 12. A mounting structure for an auxiliary jib in a crane with an auxiliary jib, characterized in that: