Chain – staple – and horseshoe making – Chains – Conduit
Patent
1989-09-26
1990-10-16
Jones, David
Chain, staple, and horseshoe making
Chains
Conduit
248 49, 248 51, F16G 1316
Patent
active
049626396
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a chain link for a power-supply chain, the said chain link comprising two side plates connected by means of transverse webs and designed for articulated connection to adjacent chain links, its interior bounded by the side plates and the transverse webs being subdivided by partition webs inserted between the transverse webs and extending perpendicularly relative to these and by intermediate webs inserted between adjacent partition webs and extending perpendicularly relative to these.
Power-supply chains of this type serve for receiving cables, hoses and the like. The chain links are made box-shaped for this purpose. The articulated connection is obtained because the side plates are equipped alternately with pins and circular orifices, the pins of one chain link engaging into the recesses of the following chain link. However, the articulated connection can also be made in any other way.
The pivotability of successive chain links relative to one another is limited by stops or in another way.
Such chain links of known power-supply chains are generally produced from thermoplastic, specifically either each in one piece of else composed of several parts.
As to the art, DE-PS No. 34 14 412 is to be mentioned, showing a power-supply chain, wherein each chain link is built by side plates and transverse webs and wherein the interior bounded by the side plates and the transverse webs is subdivided by partition webs. This is shown especially in FIGS. 2, 6 and 7 of the aforesaid reference. FIG. 2 moreover shows the articulated connection of the chain links.
Another reference as to the art is CH-PS No. 635 175, which shows as well a power-supply chain with inserted partition webs.
Another reference is DE-OS No. 35 31 066. The limitation of the pivotability of successive chain links by stops is to be seen there in FIGS. 4 and 5.
The invention relates to all the abovementioned types of chain links for power-supply chains.
To guide the inserted cables or hoses from one chain link to the next in an ordered manner and to preserve this order even during operation, the interior of each chain link is subdivided by the said partition webs and intermediate webs.
The disadvantage of a fixed connection of the partition webs to the transverse webs, for example in a one-piece version, is that a relatively large number of different chain links have to be kept ready for the various uses, thus making production and stockkeeping more expensive. It was therefore proposed to insert the partition webs loosely and retain them on the transverse webs by friction alone. However, this led to faults because individual partition webs fell out.
The object on which the invention is based is to design a chain link for a power-supply chain of the type mentioned in the introduction, so that the position of the partition webs can first be determined freely, but then the partition webs can be retained in the desired position in a simple way, without the danger that they will fall out.
According to the invention, this object is achieved because the partition webs designed as rectangular plates are arranged displaceably between the transverse webs and carry at their corners supporting lugs which project and engage in pairs round the transverse webs on the underside and which prevent the partition webs from falling out, because the partition webs are equipped on both sides with one or more retaining grooves distributed over their height and aligned respectively with one another on both sides, and because the intermediate webs carry, at their ends, locking lugs which can respectively be pushed selectively into one of the retaining grooves.
Although the partition webs of a chain link according to the invention are held non-positively by the transverse webs, as in the known versions, the intermediate webs connected to the transverse webs ensure a positive connection which prevents the partition webs from inadvertently shifting towards one side plate or the other. In particular, as soon as the partition web or partition webs are to be di
REFERENCES:
patent: 3848407 (1974-11-01), Moritz
patent: 4018411 (1977-04-01), Hennig
patent: 4104871 (1978-08-01), Moritz
patent: 4590961 (1986-05-01), Schumann
patent: 4626233 (1986-12-01), Moritz
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