EP2822888B1 - Vis à il - Google Patents

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Publication number
EP2822888B1
EP2822888B1 EP13714543.9A EP13714543A EP2822888B1 EP 2822888 B1 EP2822888 B1 EP 2822888B1 EP 13714543 A EP13714543 A EP 13714543A EP 2822888 B1 EP2822888 B1 EP 2822888B1
Authority
EP
European Patent Office
Prior art keywords
rolling elements
bearing part
eyebolt
plane
planes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP13714543.9A
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German (de)
English (en)
Other versions
EP2822888A1 (fr
Inventor
Bernhard Norpoth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thiele GmbH and Co KG
Original Assignee
Thiele GmbH and Co KG
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Filing date
Publication date
Application filed by Thiele GmbH and Co KG filed Critical Thiele GmbH and Co KG
Publication of EP2822888A1 publication Critical patent/EP2822888A1/fr
Application granted granted Critical
Publication of EP2822888B1 publication Critical patent/EP2822888B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof

Definitions

  • the invention relates to an eyebolt for the detachable connection of a supporting, lashing or traction means with an object according to the features in the preamble of claim 1.
  • Eyebolts are used for simple and mostly temporary coupling of an object with a carrying, lashing or traction means. They form a stop means which can be fixed or already fixed as a releasable anchoring point on the respective object.
  • the eyebolt which is also known as an eyebolt, takes its name since it has an annular eyelet instead of a conventional screw head.
  • lashing or traction means usually ropes or wires and straps or chains are used, which are either passed through the eyelet arranged on the eye bolt or fixed to this example by means of a shackle.
  • rotatably mounted eyelets are also known on the bolt.
  • the purpose of a rotatable embodiment is that the eyelet is aligned relative to the object in its fixed state. Due to the gained independence compared to the otherwise unchangeable position of the screwed eyebolt, the eyelet can be optimally adapted to the course of the corresponding support, lashing or traction device.
  • the DE 201 21 118 U1 discloses an eyebolt, which comprises a threaded bolt on which an eyelet is rotatably fixed.
  • the threaded bolt on a bearing inner part, whereas the eyelet is connected to a corresponding bearing outer part.
  • the bearing outer part is supported by incorporation of rolling elements on the bearing inner part.
  • the rolling elements themselves are arranged one behind the other around the bearing inner part, wherein they run in annular over each other in at least two mutually parallel planes.
  • the additionally arranged pivotably on the bearing outer part eyelet is arranged above the bearing inner part, so that a relation to the threaded bolt perpendicular acting tensile force causes a correspondingly high moment between the bearing inner part and the bearing outer part.
  • the invention is based on the object to improve an eyebolt of the type indicated above to the extent that this despite their play-free connection their individual parts with high load capacity has the lowest possible height.
  • an eyebolt for releasably connecting a carrying, lashing or traction means is shown with an object comprising a threaded bolt and an eyelet.
  • the eyelet is connected to a bearing outer part, whereas the threaded bolt has a corresponding bearing inner part.
  • the bearing outer part is supported by incorporation of rolling elements on the bearing inner part.
  • the rolling elements are arranged annularly around the bearing inner part, wherein they extend in at least two at a predetermined distance parallel to each other extending planes in an annular manner one above the other.
  • the arranged in a first plane rolling elements and arranged in a second plane rolling elements may have a constant radius within the respective plane.
  • the sum of the radius of one of the rolling bodies arranged in the first plane and the radius of one of the wheels in the second Level arranged rolling elements greater than the distance between the two planes in which the individual rolling elements are arranged.
  • the particular advantage here is a combination of the advantages of two stacked ring levels at the same time low overall height.
  • the rolling elements themselves are rotationally symmetrical at least about one axis of rotation.
  • the radius results between the axis of rotation and the outer surface of the respective rolling element.
  • the respective radius results from the distance between the outer surface of the rolling element and its center.
  • the arrangement of the rolling elements in the respective planes is chosen in the context of the invention so that either the center or a physical end of its axis of rotation lies in one of the planes.
  • the respective axis of rotation can also run parallel and thus lie within one of the planes.
  • a rolling element of a plane dips in regions between two rolling elements of the other plane, so that an imaginary meander-shaped separating track is set between the outer surfaces of the rolling elements, which extends annularly around the bearing inner part between the two planes.
  • two in the same plane immediately behind one another arranged rolling elements point contact with at least one of the rolling elements from the other level on.
  • a point contact between individual rolling elements is possible if at least some of the rolling elements are designed spherical.
  • two rolling elements arranged directly one behind the other in the same plane have line contact with at least one of the rolling elements from the other plane.
  • none of the rolling bodies in contact with each other may have a spherical shape, but rather must have a cylindrical configuration.
  • the corresponding line contact is established between the lateral surfaces of the rolling elements that are in contact.
  • three rolling bodies each enclose an angle of 60 ° to ⁇ 180 ° between them.
  • two of these rolling elements are arranged together in one of the planes, while the remaining rolling elements lies in the respective other plane.
  • the centers and / or axes of rotation of the individual rolling elements form a self-contained triangle.
  • the three rolling elements arranged as described above are in contact with each other at an angle of 60 °.
  • the larger the angle is chosen the further the rolling elements arranged side by side in the same plane are spaced apart. Due to the spacing of the rolling elements, the rotational movement which is sometimes opposite to one another or with respect to the rolling body resting on top can be facilitated, since at least one rotational movement of the rotating body is only slightly effected or even precluded.
  • the previously defined position of the angle between the three rolling elements can also be such that the angle is formed between the imaginary connections of two rolling elements arranged in the same plane and one of these rolling elements forms the rolling element lying in the other plane. Again, the contact of the rolling elements would cancel each other at an angle> 60 ° to ⁇ 180 °, more precisely between the individual rolling elements and one of the two arranged in the same plane rolling elements.
  • the angle between the individual rolling elements can be up to ⁇ 180 °, so that the respective individual rolling element dips as far as possible between the rolling elements of the other level.
  • at least one of the rolling bodies arranged in one plane is in touching contact with a rolling body arranged in the other plane. This ensures that occurring forces are transmitted through the rolling elements directly through the forming pressure strut across the two levels.
  • said pressure strut extends due to the arrangement of the rolling elements to each other at an angle to the longitudinal direction of the bearing inner part.
  • these up and down limiting edges are provided. Through these flanks, a channel arranged around the bearing inner part can be formed, within which the individual rolling elements are arranged in their respective planes. Due to the circumference of the channel and the radius and the number of individual rolling elements is ensured that the arranged in the same plane rolling elements can not leave this. By juxtaposing the individual rolling elements in each of the plane consequently no sufficiently large gap is provided, in which a rolling element can change from the first plane to the second plane and vice versa.
  • each of the levels passes through one of the annular troughs.
  • the respective apex of the rounded troughs runs in each of the planes.
  • the troughs can be arranged in each case in the bearing outer part.
  • the troughs may also be arranged in the bearing inner part.
  • the troughs are arranged both in the bearing outer part and in the bearing inner part.
  • At least one of the troughs in cross-section also have a polygonal contour.
  • this angularly shaped track may also have rounded transitions between its base and the walls bounding it to the sides.
  • the troughs arranged in the bearing outer part merge into one another to form a web between the planes.
  • these can merge into one another to form a web between the planes.
  • the troughs on at least one of these parts to form a web between the planes merge into one another.
  • the depth of the respective troughs plays in particular the depth of the respective troughs a role.
  • the web tapers, forming a sharp edge at the latest when a common point of intersection of the rounded troughs is reached in the plane of the outer surface of the outer bearing part and / or the inner bearing part.
  • the formation of the web a clear demarcation of arranged for the determination of the position of the rolling elements raceways and thus the raceways of the rolling elements is determined.
  • the web jumps back against an inner surface of the bearing outer part. If the troughs are arranged in the bearing inner part, the web formed between them can also spring back relative to an outer surface of the bearing inner part. Of course, the web can also jump back against an inner surface of the bearing outer part and an outer surface of the bearing inner part, provided that the troughs are arranged both in the bearing inner part and in the bearing outer part.
  • the advantage of jumping back the web lies in the fact that the runners can thus have the greatest possible depth for guiding the rolling bodies. Only by jumping back the web while the individual rolling elements can cross-plane in the annular path of the other arranged annularly Rolling penetrate, which forms an imaginary meandering separation path between the running in the individual troughs rolling elements. Moreover, the springing back of the web causes it to have a small height, whereby due to the shorter lever arm it can also absorb higher loads transversely to its extent parallel to the two planes.
  • the bearing inner part has a height which extends in the longitudinal direction thereof.
  • the bearing inner part is encompassed circumferentially enclosing the rolling elements of the bearing outer part.
  • the maximum height of the bearing inner part corresponds to a likewise extending in the longitudinal direction of the bearing inner part height of the bearing outer part. Consequently, the height of the bearing outer part corresponds at most to the height of the bearing inner part.
  • the bearing outer part has a lower height relative to the bearing inner part.
  • the eye bolt coupled to an object via the threaded bolt has a gap between the bearing outer part and the region of the object within which the threaded bolt is received.
  • the bearing inner part is not unnecessarily embraced on its side opposite the threaded bolt head side of the bearing outer part, whereby the overall height of the eye bolt is reduced.
  • bearing outer part thus does not extend over the bearing inner part in the shape of a hat, appropriate sealing measures can be provided between the bearing inner part and the bearing outer part, which effectively prevent the penetration of foreign bodies and liquid media into the gap between the bearing inner part and the bearing outer part.
  • the bearing outer part may have a conical outer surface.
  • the bearing outer part primarily rotationally symmetrical formed outer surface, which is circumferentially inclined relative to the longitudinal direction of the bearing inner part. Due to the conical configuration, the bearing outer part can be adapted in its wall thicknesses to the loads occurring.
  • the bearing outer part may preferably have a tapered to the threaded bolt cross-section, whereas the outer surface of the arranged on the bearing outer part eyelet radially increases. In particular, thus thickened towards the eyelet areas of the bearing outer part serve the safe application of force through the eyelet in the eyebolt, more precisely in the outer bearing part.
  • the advantage lies in the conical configuration of the bearing outer part, which preferably tapers towards the threaded bolt in that the eyebolt has the smallest possible dimensions in relation to the bearing outer part in the region of its fixing to an object. As a result, the eyebolt can be easily fixed to the respective object even in confined spaces.
  • the threaded bolt of the eyebolt is an integral part of the bearing inner part.
  • the one-piece design allows in addition to the simple method of manufacturing a safe and uniform power transmission between the bearing inner part and threaded bolt.
  • the head is prepared only by means of cutting measures for receiving the rolling elements.
  • the bearing inner part has a tool attachment contour on an end face facing away from the threaded bolt.
  • the eyebolt can be screwed by attaching a tool on or in the bearing inner part in the eyelet with the respective object.
  • the tool attachment contour is preferably designed with a contour directed into the bearing inner part, for example for receiving an Allen wrench.
  • the executed in the bearing inner part tool approach contour is preferred as a hexagon socket.
  • the bearing outer part pivotable eye and a directed into the bearing inner part tool approach contour can be arranged in the form of a slot or cross to use a corresponding screwdriver.
  • the eyelet can be an integral part of the bearing outer part. Compared to an articulated on the bearing outer part eyelet the advantage here is initially in a simpler manufacturing method.
  • the fixed by the one-piece design relative to the outer bearing eyelet allows even with vertical arrangement of the eyebolt their clear alignment with respect to the longitudinal direction of the bearing inner part, whereby, for example, an unwanted folding the eyelet is prevented at oblique load introduction.
  • the bearing outer part can have at least two closable accesses.
  • the entrances are intended to introduce the arranged between the bearing inner part and the bearing outer part rolling elements in the manufacture of the eyebolt.
  • the bearing outer part may also have only a single closable access.
  • at least two closable accesses are provided in the bearing outer part, which are each arranged in the region of the planes of the rolling elements.
  • the respective access should communicate with one of the troughs.
  • the respective access in the bearing outer part is oriented so that an introduced by the access rolling elements can be stored directly into the intended trough inside.
  • the accesses can also run inclined relative to the longitudinal direction of the bearing inner part while also communicating with and orienting towards the troughs.
  • the entrances are used, if necessary, to remove individual rolling elements from their position, for example to replace them.
  • the additions serve to provide the rolling elements and the troughs with a suitable lubricant.
  • grease or another lubricant can be introduced via at least one of the inlets.
  • the number of rolling elements in the respective planes is identical. Due to the identical number of rolling elements, the arrangement according to the invention is achieved in that they each offset from each other in relation to the planes and thereby alternately engage in the annular path of the other plane between the rolling elements extending there.
  • the number of rolling elements with respect to the individual levels may also differ, but these then have different dimensions, in particular radii.
  • the rolling elements of the first plane relative to the rolling elements of the second plane may have a larger radius, whereby the rolling elements of the first plane are in contact with at least two rolling elements of the second plane.
  • the rolling elements arranged in the planes are aligned parallel to one another or at an angle to a longitudinal direction of the bearing inner part.
  • the arranged in the cut of the eye bolt one above the other in the two planes rolling elements with respect to an imaginary connecting line connecting them can be arranged directly above one another or offset from one another.
  • the imaginary connecting line runs parallel to the longitudinal direction, while in the second case, the connecting line forms an angle between it and the longitudinal direction of the bearing inner part.
  • the rolling elements of the first level and the rolling elements of the second level on each other different radii.
  • a ring track consisting of rolling elements arranged one behind the other thus forms in one of the planes a circumference which differs from the other ring track in the other plane.
  • the rolling elements of one of the ring paths jump back relative to the other ring track.
  • the rolling elements in the plane jump back relative to the rolling elements of the other plane, which have a smaller radius. The reason for this is a smaller extent of successively arranged rolling elements.
  • the oblique pressure strut which inevitably forms between the planes of the mutually staggered rolling elements can additionally also be inclined with respect to the longitudinal direction of the bearing inner part.
  • the rolling elements are formed as a ball.
  • the rolling elements can also be designed as cylinders.
  • the rolling elements can also be designed as a truncated cone.
  • the formation of the rolling elements as a ball has the advantage that they have the simplest possible structure and a very simple arrangement of the rolling elements between the bearing inner part and the bearing outer part enable.
  • a rolling element in the form of a cylinder or a truncated cone has a larger contact area relative to a sphere, which can be used for power transmission.
  • the rolling elements in the form of a truncated cone Unless spherical rolling elements are sufficient for power transmission, it is considered particularly advantageous to form the rolling elements in the form of a truncated cone.
  • the tapered ends of the rolling elements to the longitudinal direction of the bearing inner part, while the thickened ends point radially away from the longitudinal direction.
  • the rolling elements in the form of a truncated cone in the first plane and the second plane may have a mutually different orientation.
  • the frustoconical rolling elements in the first plane for example, with their tapered ends to the longitudinal direction of the bearing inner part, while the rolling elements are aligned in the second plane with their thickened ends in the same direction.
  • the rolling elements have identical dimensions in both ring track planes. This in particular against the background of the most economical production of the rolling elements and their simple and quick arrangement within the eyebolt.
  • the invention shows a very advantageous embodiment of an eyebolt with a relative to the threaded bolt rotatable eyelet.
  • the arrangement of the individual rolling elements in two mutually spaced planes, wherein the Wälzeniaebenen overlap in the other ring track allows the lowest possible height of the eyebolt despite the ability to transmit high forces.
  • the inventive arrangement of the rolling elements also causes the eyelet with the bearing outer part in the unloaded state is easy to rotate relative to the specified over the threaded bolt on an object bearing inner part.
  • causes a tensile load especially in the longitudinal direction of the bearing inner part an increased pressure between the rolling elements of the individual levels, which thereby by their part opposite directions of rotation are clamped together. In this way, an undesired rotation of the eyelet can be prevented or at least inhibited under load additionally.
  • FIG. 1 shows an eyebolt 1 according to the invention
  • the eyebolt 1 is the releasable connection of a support, lashing, or traction means not shown with an object also not shown.
  • the eyebolt 1 comprises a threaded bolt 2 shown in simplified form and an eye 3.
  • the eyelet 3 is connected via a bearing outer part 4 with the threaded bolt 2.
  • the threaded bolt 2 is arranged on one of the eyelet 3 opposite side of the bearing outer part 4.
  • the threaded bolt 2 extends in a longitudinal direction x
  • the eyelet 3 extends within a plane spanned by the longitudinal direction x and a first transverse direction y extending perpendicular thereto.
  • the eyelet 3 extends annularly around a likewise to the longitudinal direction x and the first transverse direction y perpendicularly extending second transverse direction z.
  • the annular eyelet 3 is formed as a three-quarter circle, with their respective ends are fixed to the bearing outer part 4.
  • the eyelet 3 forms an integral part of the bearing outer part 4.
  • the bearing outer part 4 has a height h1 which extends between an upper side 4a and an underside 4b of the bearing outer part 4 which is spaced parallel to it in the longitudinal direction x.
  • FIG. 2 clarified in a rotated by 90 ° about the longitudinal direction x view of the eye bolt 1 FIG. 1 their design.
  • the bearing outer part 4 has a conical outer surface 5.
  • the outer surface 5 of the bearing outer part 4 is inclined relative to the longitudinal direction x, wherein the bearing outer part 4 tapers to its side facing the threaded bolt 2 side.
  • the bearing outer part 4 thickened to its the threaded bolt 2 opposite and thus the eye 3 side facing.
  • the eyelet 3 also has a conical shape, the largest extent in terms of their thickness in the region of the bearing outer part 4, while the eyelet 3 tapers towards its apex 6.
  • this In a located between the eyelet 3 and the threaded bolt 2 region of the outer surface 5 of the bearing outer part 4, this has an access 7a, which extends in a manner not shown here by a part of the bearing outer part 4 therethrough.
  • the access 7a is via a threaded pin 8a closed, which has a tool attachment surface in the form of a hexagon socket.
  • the threaded pin 8a can be removed via a tool not shown in detail in the form of an Allen from the access 7a.
  • FIG. 3 clarified in a plan view of the eyebolt 1 with a view in the longitudinal direction x the design of the eyelet 3 and the bearing outer part 4.
  • the thickness of the eyelet tapers toward the apex 6.
  • the outer bearing part 4 in this case has a round configuration, wherein the outer surface 5 extends in a circle around the longitudinal direction x around.
  • FIG. 4 shows again the already in the previous one FIGS. 1 to 3 explained features of the eyebolt 1 in a perspective representation.
  • the longitudinal direction x intersects with the first transverse direction y and the second transverse direction z in the eye of the annular eyelet 3.
  • the illustration also reveals the view of an end face 9 of a bearing inner part 10, which is encompassed by the bearing outer part 4 in an annular manner ,
  • the bearing inner part 10 on its side facing away from the threaded bolt 2 end face 9 a tool approach contour 11.
  • the tool approach contour 11 in the end face 9 of the bearing inner part 10 is formed as a hexagon socket.
  • FIG. 2 another access 7b can be seen, which is the access 7a not shown here FIG. 2 opposite.
  • the access 7b is displaced in its position in the bearing outer part 4 towards the transition region between the eyelet 3 and the bearing outer part 4.
  • FIG. 5 now illustrates the internal structure of the eyebolt 1 in a sectional view.
  • the cut is made in the plane spanned by the longitudinal direction x and the first transverse direction y, in which the eyelet 3 extends.
  • the section illustrates that the threaded bolt 2 in one piece Part of the bearing inner part 10 is.
  • the eyelet 3 is an integral part of the bearing outer part 4.
  • the bearing outer part 4 is supported by incorporation of rolling elements 12a, 12b on the bearing inner part 10.
  • the rolling elements 12a, 12b are each arranged in one of two longitudinally x spaced and parallel planes E1, E2 around the bearing inner part 10 around.
  • the section illustrates that the two accesses 7a, 7b are opposite each other and each closed by threaded pins 8a, 8b.
  • the accesses 7a, 7b are respectively aligned with the rolling elements 12a, 12b of one of the planes E1, E2.
  • By removing at least one of the threaded pins 8a, 8b thus both the removal and the introduction of the rolling elements 12a, 12b allows.
  • respective running channels 13a, 13b, 14a, 14b are arranged both in the bearing outer part 4 and in the bearing inner part 10.
  • the troughs 13a, 13b, 14a, 14b are rounded in their respective cross-section, wherein the entrances 7a, 7b respectively communicate with the troughs 13a, 13b, 14a, 14b.
  • the troughs 13a, 13b, 14a, 14b are each arranged in one of the two planes E1, E2.
  • the raceway 13a of the bearing inner part 10 and the raceway 14a of the bearing outer part 4 are in the first plane E1
  • the other raceway 13b of the bearing inner part 10 and the raceway 14b of the bearing outer part 4 in the second plane E2 are opposite.
  • the flow channels 13a, 13b, 14a, 14b enclose the rolling elements 12a, 12b at least in regions, whereby the bearing outer part 4 is supported on the bearing inner part 10 via the rolling elements 12a, 12b.
  • Both the bearing inner part 10 and the bearing outer part 4 each have a height h1, h2 extending in the longitudinal direction x of the bearing inner part 10.
  • the height h2 of the bearing inner part 10 extends between the threaded bolt 2 and the end face 9 of the bearing inner part 10.
  • the in Length x of the bearing inner part 10 extending height h2 of the bearing inner part 10 is less than the also extending in the longitudinal direction x and the bearing inner part 10 encompassing height h1 of the bearing outer part. 4
  • the rolling bodies 12a, 12b arranged in the individual planes E1, E2 are arranged in such a way that they overlap at least in regions with their respective projection surface. Looking at the illustration of the FIG. 5 the present sectional plane is guided so that in each case one of the rolling elements 12a, 12b is shown cut in its largest cross-section. This illustrates that the respective immediately adjacent rolling elements 12a, 12b in the respective other plane E1, E2 has an overlap with the cut rolling elements 12a, 12b.
  • FIG. 6 shows the threaded bolt 2 together with the bearing inner part 10 outside of the eyebolt 1 not shown here in a perspective representation.
  • the individual rolling elements 12a, 12b are each formed as balls, which are arranged in a ring around the bearing inner part 10 around one another.
  • This view illustrates that the individual rolling elements 12a, 12b are each arranged offset from one another, whereby a point contact is established between the individual rolling elements 12a, 12b.
  • FIG. 7 again shows a detailed representation of the image of the threaded bolt 2 with the integrally formed thereon bearing inner part 10 and the surrounding rolling elements 12a, 12b. This view again makes it clear that the threaded bolt 2 showing an external thread is formed integrally with the bearing inner part 10.
  • the upper rolling elements 12a are arranged around the bearing inner part 10 in the form of an annular path R1, in contrast, the lower rolling elements 12b also in a circular path R2 to the bearing inner part 10 run around.
  • the width of the respective annular paths R1, R2 extending in the longitudinal direction x results in each case on the basis of the outer dimensions of the individual rolling elements 12a, 12b.
  • Both the upper rolling bodies 12a and the lower rolling bodies 12b each have a radius r1, r2, which in the present case is identical. Furthermore, the two planes E1, E2, within which the individual rolling elements 12a, 12b are arranged, are spaced from each other. In this case, the two planes E1, E2 run parallel to each other at a distance x1.
  • the arrangement of the individual rolling elements 12a, 12b is selected so that the individual ring paths R1, R2 have an overlap between them, within which an imaginary meander-shaped separating track 15 is formed between the individual rolling elements 12a, 12b.
  • the meandering shape of the separating web 15 is due to the fact that the individual rolling elements 12a, 12b of a plane E1, E2 respectively engage between two rolling elements 12a, 12b of the respective other plane E1, E2.
  • the individual rolling elements 12a, 12b With respect to the longitudinal direction x, the individual rolling elements 12a, 12b are not stacked directly on each other in the planes E1, E2, but rather are inclined relative to one another. This results in that the sum of the radius r1 of one of the rolling bodies 12a arranged in the first plane E1 and the radius r2 of one of the rolling bodies 12b arranged in the second plane E2 is greater than the distance x1.
  • two rolling elements 12a, 12b arranged directly one behind the other in the same plane E1, E2 have a point contact with at least one of the rolling elements 12a, 12b from the other plane E1, E2.
  • three of the rolling elements 12a, 12b enclose an angle w of 60 ° here between them.
  • two of these Wälzköper 12b are arranged together in one of the planes E2, while the remaining rolling elements 12a lies in the respective other plane E1.
  • the rolling elements 12a, 12b can also be arranged with play relative to one another, so that not all the rolling elements 12a, 12b have a point contact with one another.
  • This game can be done within the ring tracks R1, R2 and / or between the ring tracks R1, R2.
  • three of the rolling elements 12a, 12b may also include an angle w deviating from 60 ° therebetween.
  • at least some of the rolling elements 12a, 12b depending on the position within the ring screw during operation or standstill continuous point contact or at least temporarily have a point contact with each other.
  • the rolling elements 12a, 12b in both the planes E1, E2 are identical, in particular in their dimensions. Even if one of the ring paths R1, R2 may have a small circumference, not shown, in the present case the rolling elements 12a, 12b arranged in the planes E1, E2 are aligned parallel to the longitudinal direction x of the bearing inner part 10 one above the other.
  • FIG. 8 shows the running as a common one-piece component areas of the eyebolt 1 in the form of the threaded bolt 2 and the bearing inner part 10.
  • the rolling elements 12a, 12b only two of these rolling elements 12a, 12b are shown schematically.
  • the view of the circumferential runners 13a, 13b, which run around the bearing inner part 10 is thereby made possible.
  • the runners 13a, 13b arranged in the bearing inner part 10 merge into one another to form a web 16 between the planes E1, E2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Claims (17)

  1. Vis à oeillet pour la liaison amovible d'un moyen de portage, d'amarrage ou de traction avec un objet, comprenant un boulon fileté (2) ainsi qu'un oeillet (3), le boulon fileté (2) comportant une partie intérieure de palier (10) et l'oeillet (3) étant relié à une partie extérieure de palier (4) qui est appuyée à la partie intérieure de palier (10) avec insertion d'éléments roulants (12a, 12b), les éléments roulants (12a, 12b) étant agencés en anneau autour de la partie intérieure de palier (10) les uns sur les autres dans au moins deux plans (E1, E2) s'étendant parallèlement l'un à l'autre à une distance (x1), des éléments roulants (12a) agencés dans un premier plan (E1) ayant un rayon (r1) et des éléments roulants (12b) agencés dans un deuxième plan (E2) ayant un rayon (r2), caractérisée en ce que la somme du rayon (r1) d'un élément roulant (12a) agencé dans le premier plan (E1) et du rayon (r2) d'un élément roulant (12b) agencé dans le deuxième plan (E2) est supérieure à la distance (x1).
  2. Vis à oeillet selon la revendication 1, caractérisée en ce que deux éléments roulants (12a, 12b) agencés directement l'un derrière l'autre dans le même plan (E1, E2) présentent un point de contact avec au moins l'un des éléments roulants (12a, 12b) de l'autre plan (E1, E2).
  3. Vis à oeillet selon la revendication 1 ou 2, caractérisée en ce que deux éléments roulants (12a, 12b) agencés directement l'un derrière l'autre dans le même plan (E1, E2) présentent une ligne de contact avec au moins l'un des éléments roulants (12a, 12b) de l'autre plan (E1, E2).
  4. Vis à oeillet selon l'une des revendications 1 à 3, caractérisée en ce que, à chaque fois, trois des éléments roulants (12a, 12b) forment entre eux un angle (w) compris entre 60° et moins de (<) 180°, deux de ces éléments roulants (12a, 12b) étant agencés ensemble dans l'un des plans (E1, E2) tandis que l'élément roulant restant (12a, 12b) est agencé dans l'autre plan respectif (E1, E2).
  5. Vis à oeillet selon l'une des revendications 1 à 4, caractérisée en ce que, à chaque fois, une goulotte (13a, 13b, 14a, 14b) dont la section transversale est ronde est agencée dans les plans (E1, E2), les goulottes (13a, 13b, 14a, 14b) étant agencées dans la partie extérieure de palier (4) et/ou dans la partie intérieure de palier (10).
  6. Vis à oeillet selon la revendication 5, caractérisée en ce que les goulottes (13a, 13b, 14a, 14b) agencées dans la partie extérieure de palier (4) et/ou dans la partie intérieure de palier (10) passent l'une dans l'autre en formant une traverse (16) entre les plans (E1, E2).
  7. Vis à oeillet selon la revendication 6, caractérisée en ce que la traverse (16) est en retrait par rapport à une surface interne de la partie extérieure de palier (4) et/ou par rapport à une surface externe (17) de la partie intérieure de palier (10).
  8. Vis à oeillet selon l'une des revendications 1 à 7, caractérisée en ce qu'une hauteur (h2) de la partie intérieure de palier (10), hauteur qui s'étend dans le sens de la longueur (x) de la partie intérieure de palier (10), correspond au maximum à une hauteur (h1) de la partie extérieure de palier (4), hauteur qui s'étend également dans ce sens de la longueur (x) et qui englobe la partie intérieure de palier (10).
  9. Vis à oeillet selon l'une des revendications 1 à 8, caractérisée en ce que la partie extérieure de palier (4) a une surface externe (5) conçue conique.
  10. Vis à oeillet selon l'une des revendications 1 à 9, caractérisée en ce que le boulon fileté (2) est conçu d'un seul tenant avec la partie intérieure de palier (10).
  11. Vis à oeillet selon la revendication 10, caractérisée en ce que la partie intérieure de palier (10) a un contour d'épaulement d'outil (11) au niveau d'un côté frontal (9) éloigné du boulon fileté (2).
  12. Vis à oeillet selon l'une des revendications 1 à 11, caractérisée en ce que l'oeillet (3) est conçu d'un seul tenant avec la partie extérieure de palier (4).
  13. Vis à oeillet selon l'une des revendications 5 à 12, caractérisée en ce que la partie extérieure de palier (4) comporte deux accès (7a, 7b) pouvant être fermés qui sont agencés à chaque fois dans la zone des plans (E1, E2) et qui communiquent avec les goulottes (13a, 13b, 14a, 14b).
  14. Vis à oeillet selon l'une des revendications 1 à 13, caractérisée en ce que le nombre des éléments roulants (12a, 12b) dans les deux plans (E1, E2) est identique.
  15. Vis à oeillet selon l'une des revendications 1 à 14, caractérisée en ce que les éléments roulants (12a, 12b) agencés dans les plans (E1, E2) sont orientés les uns au-dessus des autres parallèlement ou en formant un certain angle avec un sens de la longueur (x) de la partie intérieure de palier (10).
  16. Vis à oeillet selon l'une des revendications 1 à 13, caractérisée en ce que les éléments roulants (12a, 12b) sont conçus comme des billes, des cylindres ou des cônes tronqués.
  17. Vis à oeillet selon l'une des revendications 1 à 16, caractérisée en ce que les éléments roulants (12a, 12b) dans les deux plans (E1, E2) ont des dimensions identiques.
EP13714543.9A 2012-03-05 2013-02-26 Vis à il Not-in-force EP2822888B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201220100764 DE202012100764U1 (de) 2012-03-05 2012-03-05 Ringschraube
PCT/DE2013/100075 WO2013131513A1 (fr) 2012-03-05 2013-02-26 Vis à œil

Publications (2)

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EP2822888A1 EP2822888A1 (fr) 2015-01-14
EP2822888B1 true EP2822888B1 (fr) 2016-01-13

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EP13714543.9A Not-in-force EP2822888B1 (fr) 2012-03-05 2013-02-26 Vis à il

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US (1) US9193570B2 (fr)
EP (1) EP2822888B1 (fr)
DE (1) DE202012100764U1 (fr)
WO (1) WO2013131513A1 (fr)

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DE102013205723A1 (de) * 2013-03-28 2014-10-02 Rud Ketten Rieger & Dietz Gmbh U. Co. Kg Kugelgelagerter Anschlagpunkt
JOP20140215B1 (ar) * 2013-07-10 2023-03-28 Esco Group Llc موصل لتسهيل رفع الأجزاء البالية
DE102014208819A1 (de) 2014-05-09 2015-11-12 Rud Ketten Rieger & Dietz Gmbh U. Co. Kg Ringelement mit einem geteilten Sockel für ein Zurr- oder Anschlagmittel
DE202016004078U1 (de) * 2016-06-28 2016-08-26 Manfred Redder Anschlagwirbel bei dem das gegenüber dem Unterteil drehbare Oberteil durch einen in eine Lagerbohrung eingreifenden Lagerzapfen und Lagerrollen formschlüssig miteinander verbunden sind
USD803668S1 (en) 2016-09-01 2017-11-28 Mjt Holdings, Llc Load-mountable lifting eye
US10207902B2 (en) 2016-09-01 2019-02-19 Mjt Holdings, Llc Load-mountable lift eye assembly
DE202016006871U1 (de) 2016-11-04 2016-12-05 Manfred Redder Anschlagring mit einer zum Einhängen eines Anschlagmittels oder Zurrmittels dienenden Tragöse.
DE202017100479U1 (de) 2017-01-30 2018-05-03 Thiele Gmbh & Co. Kg Ringschraube mit exzentrischem Versatz der Ringöse
WO2019103753A1 (fr) * 2017-11-27 2019-05-31 Mjt Holdings, Llc Ensemble œillet de levage montable sur charge
USD840794S1 (en) 2017-11-27 2019-02-19 Mjt Holdings, Llc Load-mountable lift eye
DE202019105837U1 (de) * 2019-10-21 2021-01-22 J. D. Theile Gmbh & Co. Kg Anschlagöse
DE102019135324A1 (de) * 2019-12-19 2021-06-24 Pewag Austria Gmbh Anschlussvorrichtung zum Ankoppeln einer Last an eine Tragöse mittels eines Tragbolzens
USD908477S1 (en) * 2020-07-01 2021-01-26 Haoliang Liu Bolt
USD922185S1 (en) * 2020-11-17 2021-06-15 Haoliang Liu Bolt
JP1685917S (fr) * 2020-12-21 2021-05-24
JP1711641S (ja) * 2021-06-29 2022-04-04 吊り金具
DE202022105768U1 (de) 2022-10-12 2024-01-15 J.D. Theile Gmbh & Co. Kg Anschlagpunkt

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Also Published As

Publication number Publication date
WO2013131513A1 (fr) 2013-09-12
EP2822888A1 (fr) 2015-01-14
DE202012100764U1 (de) 2012-04-27
US20150028614A1 (en) 2015-01-29
US9193570B2 (en) 2015-11-24

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