Tensioner of a tightener for a chain, strap, cable or the like
AssigneeTds Co. Ltd
InventorsTom Stromberg, Nils Stiepermann
Life of this patent
Estimating the term…
Abstract
The invention relates to a tensioning device for tensioning tensioning means such as chains, straps, ropes, threaded rods or the like, which is fitted with at least one tubular tensioning nut (4a, 4b) and at least one threaded bolt (2) which is inserted into the tensioning nut (4a, 4b) and interacting therewith. According to the invention, the tensioning nut (4a, 4b) is divided longitudinally into at least two tensioning nut halves (4a, 4b) and comprises at least one guide opening (5a, 5b) which interacts with a guide pin (6) for radially acting upon the two tensioning nut halves (4a, 4b).
Claims17
A tensioner of a tightener of a chain, strap, rope, threaded rod or the like, the tensioner comprising:
- an outer sleeve forming a seat;
- at least one tubular tightening nut fitting in the seat of the outer sleeve;
- and
- at least one threaded bolt threaded into the tightening nut the tightening nut being axially divided into at least two shells and having at least one guide hole fittable with a guide pin for radial movement of the two shells.
In a tightener for a wire, cable, or the like, a tensioner comprising:
- an externally threaded bolt centered on an axis;
- a pair of substantially semicylindrical shells together forming a tubular nut also centered on an axis and having an internal thread meshable with an external thread of the bolt in a radial inner position of the shells and out of mesh with the external thread of the bolt in a radial outer position, the shells together forming a pair of diametrally opposite axially rearwardly open holes each in turn having a front spreading region tapering together axially forwardly and a rear region extending substantially parallel to the axis;
- an outer sleeve surrounding the nut and the bolt;
- a pair of diametrally opposite pins fixed in the outer sleeve and projecting through the holes, the nut being axially limitedly shiftable in the outer sleeve between a rear position with the pins in the rear region of the holes and the shells in the inner position and a front position with the pins in the front region of the holes and cammed apart into the outer position;
- a forwardly tapered seat in the outer sleeve and a complementary outer surface on the nut fittable in the seat in the front position of the nut;
- a spring braced between the outer part and the nut and biasing the nut into the front position with the threads meshing and the outer surface fitted in the seat, whereby pushing the rod axially rearward moves the nut axially rearward against the spring, with the pins camming the shells apart and the threads disengaging.
Dependencies are inferred from the claim text.