Patent ID: 11897735
Assignee: SAEZ MACHINERY, S.L.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. The automated collapsible tower crane, according to claim 1, wherein
the proximal part of the proximal rotary joint comprises the joint body further comprising:
a first lower end part in which a first lower horizontal axis is arranged and on which one end of the distal portion of the first boom section is rotatably coupled;
a first upper part with a first upper horizontal axis which is articulated with a distal end of a first hydraulic actuator, the first hydraulic actuator further comprising a proximal end articulated with an upper point in the distal portion of the first boom section;

and wherein the distal part of the proximal rotary joint comprising:
a second lower end part in which a second lower horizontal axis is arranged and on which one end of the proximal portion of the second boom section is rotatably coupled; and
a second upper part with a second upper horizontal axis articulated at a proximal end of a second hydraulic actuator, the second hydraulic actuator further comprising a distal end articulated at an upper point in the proximal portion of the second boom section; and
wherein the lower horizontal axes of the proximal and distal parts are further apart from each other than the upper horizontal axes;
and wherein the upper horizontal axes of the proximal and distal parts are not aligned.