SU69715A1 - Chain pivot - Google Patents

Description

This invention relates to pivot chains made flexible in two mutually perpendicular directions. The links of these chains are made up of bent slabs, provided with protrusions with holes for the connecting rollers.

According to the invention, the protrusions on the workpiece of each link are arranged crosswise and are bent in pairs in two mutually perpendicular planes.

Alternatively, each link is composed of two elongated blanks bent at a right angle along a line at an angle to the adjacent line of the workpiece.

FIG. 1 shows a general view of a chain transmission with a hinge chain; in fig. 2 - a general view of the hinge chain; in fig. 3 is a plan view of the circuit of FIG. 2; in fig. 4, 5 and b - three projections of the depi link; in fig. 7- chain link sweep; in fig. 8- general view of the hinge chain according to the second variant; in fig. 9 is a plan view of FIG. eight; in fig. 10 and 11 are two projections of a link in the second variant; in fig. 12 - scan chain link on the second option; in fig. 13 is a general view of the hinge chain in the third embodiment; in fig. 14 is a plan view of the circuit of FIG. 13; in fig. 15, 16, 17 - three projections of a chain link according to the third variant; in fig. 18 - scan chain link on the third option.

The chain is made up of individual links interconnected by means of hinges, allowing the chain to bend in two mutually perpendicular directions, which is necessary for gears in which the shafts are at right angles to each other (Fig. 1).

Each chain link (Figs. 2 and 3) is made of a flat blank / provided with cross-shaped protrusions 2 and a central opening 3 of a quadrangular shape (Fig. 7). The vertices of the quadrilateral are directed toward the projections. The projections of the preform are folded down as shown in FIG. 4-6. As a result of the bending of the workpiece, the opposing protrusions are located in parallel planes, and the neighboring protrusions

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mutually perpendicular planes. The individual links are interconnected by means of rollers 4, on the middle parts of which rollers 5 are freely put on. The chain engages with one asterisk rollers located in one plane, with another asterisk — rollers located in a plane perpendicular to the first.

FIG. Figures 8-12 show the second version of the chain, according to which the links are made of a slightly different configuration from the blank (Fig. 12). After bending the blank, the link takes the form corresponding to FIG. 10 and 11. The assembly of the chain and its operation are completely analogous to the first variant.

The chain according to the third variant (fig. 13-18) is composed of links, each of which is assembled of two parts, which are also obtained by bending the slab (fig. 18).

The tooth profile of the sprockets under these chains is made with a constant pressure angle with two cavities. One trough 6 includes a running video, and the other 7 includes a non-engaging video.

FIG. one

FIG. 2

with that star. On the other asterisk, the opposite is true.

Subject invention

Claims (3)

1. A hinged chain, made flexible in two mutually perpendicular directions, the links of which are composed of bent flat blanks equipped with four protrusions with holes for connecting rollers, characterized in that the protrusions are arranged crosswise and in pairs bent in two mutually perpendicular planes x. 2. The form of the chain according to claim 1, characterized in that each workpiece is provided with a centrally located quadrangular or star-shaped hole, four of which is directed toward the projections. 3. Chain change according to claim 1, differing in that each link is composed of two elongated blanks bent at a right angle along a line at an angle to the adjacent line of the blank.  sa FIG. 3 / QY Sch l /,  i O) b le :: 1E 1 | 1Ш |  1 | shhlg x FIG. eight FIG. 9 POGSHGO) FIG. eleven about) . . one