1. A movement device for pieces of furniture, for articulating a door with respect to a stationary structure, comprising a first articulation element (12; 12a . . . ) linked to the door and pivotable with respect to the stationary structure, a second articulation element (14) hinged to the stationary structure, the ends of said two articulation elements being hinged together, the first articulation element having an elastically variable extension, so that said two elements may assume, with respect to one another, a stable retracted position and a stable extended position passing through a succession of unstable positions, characterized in that it comprises adjustment means (30; 30a; 30b . . . ) for adjusting a distance between an axis (a16) of a hinge between the two elements and a rotation or pivotal axis (a13) of the second element with respect to the stationary structure.
2. A device according to claim 1, characterized in that said adjusting means vary a position of the hinge (16) axis along a line belonging to a chord of a circumference having as its axis the axis (a15) of the fulcrum of the second articulation element.
3. A device according to claim 1, characterized in that said first articulation element (12) comprises a casing (20) with an internal housing (22); a pawl (24) movable for a length within said housing (22), and having said hinge (16) for the other element; and in addition, an adjusting means (30) engaging said pawl for displacing the same.
4. A device according to claim 3, characterized in that the adjusting means (30) comprises a threaded stem (32) and a manoeuvring means (34), whilst said pawl has a threaded hole.
5. A device according to claim 4, characterized in that the manoeuvring means is one of the following: a manoeuvring knob, a bevel gear pair, a ring-gear manoeuvring head.
6. A device according to claim 1, characterized in that said first element comprises a casing fixed to said door, and said door is hinged to the stationary structure, said casing comprising a housing, and said adjusting means comprising a pawl in said housing provided with a threaded hole, and an adjusting means for adjusting the position of the pawl in the housing.
7. A device according to claim 1, characterized in that said first element (12d) comprises a casing, a threaded hole in the casing, an adjusting means (30d) with a threaded stem engaged in said threaded hole, said adjusting means being engaged with a head (19d) of the second element (14d).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An ATV (all terrain vehicle) Safety Bar comprised of: an articulating adjustable ATV roll bar safety system comprised of: a roll bar having first and second adjustable side members, first and second top members, wherein the first and second adjustable side members are connected accordingly to the first and to the second top members by rotating locking joints, and wherein the first and second top members are connected to each other by a tube bracket connector, wherein lights and a seatbelt are connected, and wherein the first and second adjustable side members and the first and second top members comprise tubing, and wherein the adjustable side members generally extend vertically and are connected by respective bottom ends to land foot brackets by rotating locking joints, and the landing foot brackets are connected to an articulating adjustable ATV mounting bracket, wherein said adjustable ATV mounting bracket is bolted to an ATV bottom frame, thereby forming a protective frame for placement around an ATV rider;
first and second adjustable rear support members, wherein a first end of the first adjustable support member is connected to the first adjustable side member by a universal joint, and a second end of the first adjustable support member is connected to a rear adjustable support mounting bracket by a universal joint, and wherein a first end of the second adjustable support member is connected to the second adjustable side member by a universal joint, and a second end of the second adjustable support member is connected to the rear adjustable support mounting bracket by a universal joint, wherein the rear adjustable support mounting bracket is fixed to a rear ATV frame by rear mounting channel clamps;
first and second adjustable side support beams, wherein a first end of the first adjustable support beam is connected to the first adjustable rear support member by a universal joint and a second end of the first adjustable side member support beam is connected to the first adjustable side member by a universal joint, and wherein a first end of the second adjustable side support beam is connected to the second adjustable rear support member by a universal joint, and wherein a second end of the second adjustable side support beam is connected to the second adjustable side member by a universal joint, and wherein the first and a-second adjustable rear support members and first and second adjustable side support beams can be extended or shortened to assure perfect alignment and proper fit, and wherein said adjustable rear support members have predrilled holes to accept a horizontal mounting plate for a seatbelt retractor, wherein further the first adjustable side member, a first adjustable rear support member and a first adjustable side support beam comprise a first adjustable triangle, and wherein further the second adjustable side member, a second adjustable rear support member and a second adjustable side support beam comprise a second adjustable triangle;
a seat back rest comprising a first flat steel bar, a second flat steel bar and a flexible member, wherein the first steel bar is integrated to the first adjustable rear support member and to the first top member, and the second flat steel bar is integrated to the second adjustable rear support member and to the second top member, wherein further the flat steel bars have series of holes and the flexible member is threaded through the series of holes;
first and second shoulders comprising a formed metal tubing, wherein said shoulders are attached to the first and second adjustable side members accordingly, and wherein body protective paddings are attached to each shoulder;
first and second adjustable foot and leg guards, wherein said guards are connected to the landing foot brackets and to ATV fenders by steel angle mounting brackets, wherein the adjustable foot and leg guards sit on a foot rest of the ATV, and wherein the adjustable foot and leg guards have a metal tubing frame with two adjustable mounting plates that are slotted to allow contraction and expansion of the adjustable foot and leg guards;
the articulating adjustable ATV mounting bracket comprised of first, second, third and fourth flat bars having different lengths and configurations from each other, wherein said articulating adjustable ATV mounting bracket connected to both landing foot bracket and attached to the ATV bottom frame, and wherein the roll bar connected to the articulating adjustable ATV mounting bracket forms a protective metal frame for placement around the ATV rider, and wherein adjusting ability of the articulating adjustable ATV mounting bracket provides multi configurations for adapting the ATV mounting bracket to different models and sizes of ATVs;
the seat belt and a plurality of seat belt connectors are fixed to the roll bar; the seat belt connectors are adapted to connect a portion of the seat belt to the roll bar;
a seat belt retractor, wherein said horizontal mounting plate is connected to a bottom portion of the adjustable rear support members, and wherein the seatbelt retractor is bolted to the horizontal mounting plate, and wherein further the seatbelt retractor has a locked state and an unlocked state, wherein a portion of the seat belt is connected within the retractor, and wherein the retractor is adapted to allow the extension of the seat belt from within the retractor while unlocked and to prevent the extension of the seat belt from within the retractor while locked.