Transportable lifting device
AssigneeFin Group S.R.L.
InventorsGiuseppe Lupi, Stefano Duci, Andrea Mazzoleni
Life of this patent
Estimating the term…
Abstract
A transportable lifting device (10) comprising: an upright (12); an arm (13) connectable to the upper end of said upright (12); a diagonal (14) for connecting said arm (13) and said upright (12); characterized in that said arm (13) is fixed to said upright (12) by means of a first joint (30, 35); said diagonal (14) is fixed to said upright (12) by means of a second joint (32, 41); said diagonal (14) is fixed to said arm (13) by means of a third joint (36, 40); said first joint (30, 35), said second joint (32, 41) and said third joint (36, 40) are of the type with double tenon and mortise; said first joint (30, 35) comprises: two hooks (35) placed at the end of the arm (13); two vertical slots (30) placed on the upright (12).
Claims15
A crane (10) comprising:
- an upright (12);
- an arm (13) connectable to an upper end of said upright (12);
- a diagonal (14) for connecting said arm (13) and said upright (12);
- wherein said arm (13) is fixed to said upright (12) by means of a first joint (30, 35);
- said diagonal (14) is fixed to said upright (12) by means of a second joint (32, 41);
- said diagonal (14) is fixed to said arm (13) by means of a third joint (36, 40);
- said first joint (30, 35), said second joint (32, 41) and said third joint (36, 40) are of a double tenon and mortise type;
- said first joint (30, 35) comprises:
- two hooks (35) placed at the end of the arm (13);
- two vertical slots (30) placed on the upright (12),
- said first joint (30, 35) comprises:
- a pair of guides (43) placed at the upper end of the upright (12);
- said pair of guides (43) comprises a vertical channel (44) open at the bottom, which has a first 180° bend (45) at the top;
- inside each of said pair of guides (43) a bushing (48) can slide, which is fixed in proximity of an inner end of the arm (13), and
- said first joint (30, 35) comprises:
- a second 90° bend (46) arranged towards the inside of the device (10), and after said first bend.
A crane (10) comprising:
- an upright (12);
- an arm (13) connectable to an upper end of said upright (12);
- a diagonal (14) for connecting said arm (13) and said upright (12);
- wherein said arm (13) is fixed to said upright (12) by means of a first joint (30, 35);
- said diagonal (14) is fixed to said upright (12) by means of a second joint (32, 41);
- said diagonal (14) is fixed to said arm (13) by means of a third joint (36, 40);
- said first joint (30, 35), said second joint (32, 41) and said third joint (36, 40) are of a double tenon and mortise type;
- said first joint (30, 35) comprises:
- two hooks (35) placed at the end of the arm (13);
- two vertical slots (30) placed on the upright (12),
- wherein said second joint (32, 41) comprises:
- a pair of hooks (41) placed at one end of the diagonal (14);
- two slots (32) placed on the upright (12);
- and a lever (54) pivoted on said diagonal (14) having a button (56) at the bottom and a pair of pins (57) at the top, arranged spaced apart from each other and transverse to the lever (54) that is inserted into an upper enlargement of the two slots (32).
A crane (10) comprising:
- an upright (12);
- an arm (13) connectable to an upper end of said upright (12);
- a diagonal (14) for connecting said arm (13) and said upright (12);
- wherein said arm (13) is fixed to said upright (12) by means of a first joint (30, 35);
- said diagonal (14) is fixed to said upright (12) by means of a second joint (32, 41);
- said diagonal (14) is fixed to said arm (13) by means of a third joint (36, 40);
- said first joint (30, 35), said second joint (32, 41) and said third joint (36, 40) are of a double tenon and mortise type;
- said first joint (30, 35) comprises:
- two hooks (35) placed at the end of the arm (13);
- two vertical slots (30) placed on the upright (12), and
- said third joint (36, 40) comprises:
- a hook (40) placed at one end of said diagonal (14);
- two series of parallel holes (36) present on the arm (13).
Dependencies are inferred from the claim text.