768results about "Hoisting chains" patented technology

To provide a closed cable drag chain, which is capable of preventing the contact wear powder generated in holding and guiding the cable or the like from being scattered by reliably closing the cable or the like, and wherein the assembling, maintenance and repair are easy while having light weight and low noise. In a closed cable drag chain into which a cable or the like is inserted to be held and guided in conditions where a number of intermediate frames (10) are articulately connected to each other, an outer frame (20) including a removable opening / closing frame structure fit-covers a coupling portion of the adjacent intermediate frames (10) to close the coupling gaps S respectively thereby coupling it in a tubular shape, the intermediate frame (10) comprises an intermediate frame body and an opening / closing lid member (12) fitted into the intermediate frame body (11), and the intermediate frame body (11) includes lower open end surfaces (11b), which abut with each other on the chain bend inner peripheral side to hold a required bending position of the chain and upper open end surfaces (11c), which abut with each other on the chain bend outer peripheral side to hold a straight extended position of the chain.

A shackle apparatus including a generally U-shaped shackle body having an arcuate end, a pair of parallel arms, and a retaining member spanning a gap defined between the shackle arms. The retaining member cooperates with the shackle body to define a closed loop which can be permanently attached to a sling or lifting cable. The retaining member prevents the shackle apparatus from being removed and installed on another sling or lifting cable without substantially destroying the shackle apparatus of the present invention.

In a deformable structure, connecting parts each of which has a base part are arranged longitudinally so that adjacent connecting parts are connected to each other. Respective first axes of the adjacent connecting parts are inclined to each other in a state that a spacer on one of the two adjacent base parts comes into contact with the other base part. When an external force is exerted on the deformable structure, the spacers restrain the deformable structure from being further curved into a radius of curvature smaller than a predetermined allowable radius of curvature. Most of the external force exerted on the deformable structure is born by the base parts and the spacers so that only a low force acts on the connecting parts. Thus the connecting parts do not break easily so that the deformable structure has a high strength.

A chain link has a substantially centrally located juncture section with a first eye portion integrally connected to one end of the juncture section and a second eye portion integrally connected to the opposite end of the juncture section. The eye portions extend longitudinally outwardly from opposite ends of the juncture section and are disposed at a substantial angle relative to each other at opposite ends of the link. Such link may be connected to contiguous links to form a segment of a chain, with all of the links in a segment of chain thus produced having substantially the same orientation when the chain is held straight.

The present invention is directed to support members for assemblies of conductors, conduits, or other means of conveying energy, gases, or liquids. The invention has a series of non-interlocking solids disposed along the length of a flexible base material. The non-interlocking solids have motion-limiting portions that contact similar portions on adjacent solids to restrict the movement of the support member in one direction, while permitting the support member to curve or bend in an opposite direction. The invention is also directed to assemblies incorporating the support members.

An improved energy tube-cable-router for securing flat cables and fluid carrying tubes and adapted to eliminate an undesirable pumping action of the fluid within the tubes by maintaining the longitudinal axis of tubes in a plane containing the central radius of curvature of tube-cable-router.

A power supply apparatus for a vehicle slide door, including a cable installed between a vehicle body and a slide door and a cable guide for guiding the cable. The cable guide includes a plurality of link members interconnected into a linear configuration. The cable guide includes a first section and a second section. The first section is capable of being bent in a predetermined direction from a generally linear condition. The second section is capable of being bent in an opposite direction opposite to the predetermined direction from a generally linear condition.

Breakage in a coupling portion of a side plate subjected to repeated flexure is prevented by using fatigue resistant resin materials in the side plate. The coupling portion of the side plate due is subjected to repeated flexure. Excellent fatigue resistance is realized. The fatigue resistant resin material is selected from the group of an elastomer- or rubber component- compounded polyamide resin and polybutylene terephthalate resin. The rubber component is selected from the group of ethylene-propylene rubber (EPDM), nitrile rubber (NBR) and butyl rubber (IIR).

The invention relates to a guidance chain (18; 118; 218; 318; 418; 518, 618) for guiding a connection line (20; 120; 220; 320; 420), such as a cable, electrical cable, fiber glass cable, water line, gas line or fluid line, between parts (12, 13) of a medical diagnostic apparatus (10) which are moved relative to each other, the guidance chain comprising plural chain elements (19; 119; 219; 319; 419), wherein consecutive chain elements are moveable relative to each other about a respective imaginary or real rotation axis for realizing a folding movement of the guidance chain, wherein the guidance chain is constructed such that it has an pre-set curvature in an unfolded state, and the radial extensions of the rotation axes are originating from substantially the same point in a folded state of the guidance chain. Further, the invention relates to a medical diagnostic apparatus (10) having such a guidance chain.

The pin and center link of the invention is used in a rivetless chain. It is manufactured to contain a reservoir to receive a lubricant. The reservoir may be in the form of a hole or a groove of various configurations. The lubricant is inserted into the pin or center link to provide lubrication to the center link / pin interface for extending the life of the chain. The size and location of the reservoir are selected to optimize the overall balance between load bearing strength and lubricant surface area at the center link / pin interface. The lubrication system of the present invention will also prevent leakage of lubricant onto the product and provide a clean environment.

A cable or the like protection and guide device is disclosed which prevents inadvertent disconnection due to repeated flexure. Excellent fatigue resistance is exhibited. A cable or the like protection and guide device in which pairs of side plates are respectively formed of a highly-rigid resin front side plate portion connected to a preceding side plate and a highly-rigid resin rear side plate portion is connected to a subsequent side plate. A flexible fatigue resistant resin coupling portion is interposed between the front side plate portion and the rear side plate portion in an integrated manner by using a using two-color molding.

A cable management system for managing at least one cable extending through a support arm and through a hub, comprised of a spool disposed in a hub. The spool has an opening extending through a wall of the spool. A cable carrier is disposed within the support arm. The cable carrier is dimensioned to contain at least one cable extending through the support arm, a first end fixed relative to the support arm and a second end extending towards the hub. The cable carrier is disposed in the support arm such that the cable carrier replicates upon itself to define a first run and a second run. The second end of the cable carrier is movable relative to the hub when the support arm rotates about the hub, wherein the first run shortens and the second run lengthens when the support arm rotates in a direction about the hub.

A cable and hose carrier support framework or walker is engaged by and independently driven by the carrier at an arcuate bend thereof for transferring a portion of a carrier load from the bend to a support surface beneath the lower run of the carrier in a manner which will prevent cogging and undue wear of the carrier.

The present invention discloses a balance compensation chain for elevator and its prdouction method. It comprises iron chain, rubber column and fibre layer. Said iron chain is placed in the rubber column, and said rubber column is wrapped with fibre layer. Said production method includes: removing rust from iron chain; extruding rubber material into mould to cover iron chain to form rubber column; placing the rubber column into mould and extruding the fibre material into mould to cover rubber column surface to form fibre layer; vulcanizing, cooling and setting, trimming and finishing to obtain the invented product with low noise, good wearability and high tearing strength and extensibility at break.

This invention provides a laterally-bent conveying chain. Chain links thereof are mutually connected by hinges which pivot around the first and second axes. The conveying chain further comprises a pivot bolt disposed along the first axis, a pivot pin that is disposed along the second axis and can be passed through by extending the pivot bolt, and a receiving sleeve extending along the second axis; characterized in that, the pivot pin may pivot around the second axis with respect to the receiving sleeve. The receiving sleeve is equipped with a transverse pivot opening for passing the pivot bolt. The stability of chain can be improved by following characteristics: inner and outer chain links are alternately and continuously arranged; the inner chain link comprises receiving sleeves located at each end thereof, and at least one inner link plate mutually connecting the receiving sleeves; the outer chain link comprises pivot bolts and pivot pins located at each end thereof, and at least two outer link plates mutually connecting the bolts and pins; and each end face of at least two outer link plates transversely encloses the receiving sleeves of adjacent inner chain links. When the chain moves forward in a straight line, the inner and outer chain links disposed vertical to edges extend in a direction vertical to the first axis.

A cable or the like protection and guide device is disclosed which prevents inadvertent disconnection due to repeated flexure. Excellent fatigue resistance is exhibited. A cable or the like protection and guide device in which pairs of side plates are respectively formed of a highly-rigid resin front side plate portion connected to a preceding side plate and a highly-rigid resin rear side plate portion is connected to a subsequent side plate. A flexible fatigue resistant resin coupling portion is interposed between the front side plate portion and the rear side plate portion in an integrated manner by using a using two-color molding.

A folding type cable protection and guide device is provided in which a cable is accommodated into a cable accommodating space. The cable accomodating space can be easily adapted to accommodate the cable, even if the cable is a long body. The assembly load is decreased. Further, the use of many different sized metal molds is not required. The form stability of the cable accommodating space is sufficiently ensured during both linear movement and flexion movement, so that smooth linear movement and flexion movement can be attained. The rectangularly shaped cable accommodating space is formed by folding a pair of right and left folded sections 110, 110 extending in a longitudinal direction of the extruded synthetic resin tape 100 along the longitudinal direction of the tape.

Provided is a cable or the like protection and guide device, which can suppress the sliding contact noise by reliably limiting a linear position and a bending position exhibited during the movement of the cable or the like, and at the same time, which can reduce a setting space by suppressing the impact noise and wear of a connecting pin piece on a connecting pin hole even if the height size of the link body is decreased. A connecting pin piece, convexly provided on a link body, which forms a cable or the like protection and guide device, includes stopper surfaces, which are parallel to the upper edge center portion and the lower edge center portion of the side plates and are oppositely disposed across a bending center point and a pair of front, and rear arc-shaped outer circumferential surfaces, which are oppositely disposed across the bending center point. Further a connecting pin hole, concavely provided in said link body, includes a pair of linear position maintaining surfaces, which are parallel to the upper edge center portion and the lower edge center portion of the side plate, and are oppositely disposed across the bending center point, bending position limiting surfaces, which are oppositely disposed across the bending center point in a plane symmetry, and a pair of arc-shaped inner circumferential surfaces oppositely disposed across said bending center point in a plane symmetry to be brought into sliding contact with said connecting pin pieces.

A chain plate includes a plate body and a first wing. The plate body has a first side surface adapted to face an abutment plate, a second side surface opposite to the first side surface, and an annular peripheral surface interconnecting outer peripheries of the first and second side surfaces and having first and second ends opposite to each other in a longitudinal direction. The first wing extends integrally from the first end of the peripheral surface in the longitudinal direction, and has a first side surface facing the abutment plate. The distance between the first side surface of the first wing and the abutment plate is smaller than that between the first side surface of the plate body and the abutment plate.

In a deformable structure, connecting parts each of which has a base part are arranged longitudinally so that adjacent connecting parts are connected to each other. Respective first axes of the adjacent connecting parts are inclined to each other in a state that a spacer on one of the two adjacent base parts comes into contact with the other base part. When an external force is exerted on the deformable structure, the spacers restrain the deformable structure from being further curved into a radius of curvature smaller than a predetermined allowable radius of curvature. Most of the external force exerted on the deformable structure is born by the base parts and the spacers so that only a low force acts on the connecting parts. Thus the connecting parts do not break easily so that the deformable structure has a high strength.

The invention relates to a method for producing a plastic chain link, which has interspaced plates (10, 11) as well as lower and upper cross-connecting elements (15) that connect said plates, whereby at least one cross-connecting element is connected to one of the plates (10) in an articulated manner. According to the invention, at least one of the plates is firstly produced followed by the production of at least one of the cross-connecting elements while simultaneously forming a joint connection between one of the plates and one of the cross-connecting elements.