JPH0226090U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of one embodiment of the present invention (an enlarged view of a portion of Fig. 4), Fig. 2 A is a view taken along the - arrow in Fig. 1, and Fig. 2 B is an explanation of the operation of Fig. 2 A. Figure 3 is a view in the direction of the - arrow in Figure 1, Figure 4 is an overall side view showing the post in an upright position, Figure 5 is an overall side view showing the post in a folded position, and Figure 6 is an explanatory diagram showing a conventional example. 1 is a lower traveling body, 2 is an upper revolving body, 3 is a post, 3a is an upper post, 3b is a lower post, 4 is an undulation cylinder, 6 is a parallel link mechanism, 21 is a bending cylinder, 28 is a turntable frame, 29 is 30 is a support link, 32 is a post bracket, 34 is an auxiliary link, and 41 is a swing cylinder.

Claims (1)

[Scope of utility model registration request] A turntable frame and a sub-bracket projecting horizontally diagonally forward from the turntable frame are provided at approximately the center of the front part of the upper rotating body which is rotatably provided on the lower traveling body, and are supported by the turntable frame. Pivotally attaching a post bracket via a link, connecting the post bracket and the sub-bracket with an auxiliary link,
A mobile crane characterized in that the support link and the upper revolving body are connected by a swing cylinder to form a parallel link mechanism capable of horizontal swing, and an attachment is attached to the post bracket so as to be able to raise and lower. Attachment storage structure.