JPH0847153A - Link chain - Google Patents

Abstract

PURPOSE: To eliminate the play of chain links which are adjacent in the moving direction of a movable device during the movement by loosely inserting at least one clamping rope, which extends in the moving direction of a device with movable chain links and mutually clamping chain links. CONSTITUTION: Two clamping ropes 61 and 63 are inserted into the whole chain links 21, 23, and 25. Then the whole chain links 21, 23, and 25 are clamped by clamping devices 81 and 83 without gaps and plays. Consequently, the chain links are clamped tightly and there is no play, so that the link chains can move the movable device 15 in an arbitrary direction to free length.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a link chain for guiding a wire between a fixed device and a reciprocating movable device. A large number of chain links are held against each other as follows. That is, the link chain is bent in a loop shape to form a chain band so as to extend parallel to each other in the moving direction of the movable device, and the chain link at the end of the chain is connected to a fixed device or a movable device. In addition, the link chain forms at least one wire accommodating passage, and a link device is provided at an end of the chain link adjacent to the chain link, and the link device allows the chain links adjacent to each other to swing relative to each other. Therefore, the present invention relates to a link chain that can be bent only in the bending direction by its swinging.

[0002]

BACKGROUND OF THE INVENTION There is often a need to transfer electrical and / or optical energy and / or flowing substances between a stationary device and a reciprocating device. For this purpose, the fixed device and the movable device must be connected to each other, usually by means of a conductor device having a large number of conductors. This conductor must allow the relative movement between the fixed and movable devices and must follow it without any problems.

Conventionally, this problem has been solved by using a so-called drag chain device. The drag chain device is provided with chain links made of metal or plastic which are longitudinally connected to each other at a distance. In many applications both chain bands of the drag chain extend over one another. When the predetermined drag chain length is exceeded, the upper band of the chain hangs downward, and the upper band of the chain falls on the lower band of the chain. The resulting friction not only places additional load on the drive that drives the moveable device, but may also result in premature wear of the drag chain. Furthermore, the chain bands rubbing against one another also cause considerable noise problems.

Conventional drag chains generally have at least two parallel chains spaced apart from each other in the direction of movement of the mobile device, their opposing chain links being connected by a web. A notch is formed in the web, and the conductor wire of the conductor device is drawn out through the notch. As the drag chain moves with the moveable device, relative movement between the conductors and the web may result, which may wear and damage the conductors.

A link chain of the type mentioned at the outset is known from DE 350 6792 C2, in which the individual chain links are formed in the shape of a rectangular U, so that the chain links of this link chain are continuous with one another. Along with this, a U-shaped passage is formed, and the lower chain band region of this U-shaped passage is open downward and the upper chain band region is open upward. A hose or cable is inserted in this passage.

Coupling members are provided at one of the longitudinal ends of each chain link outside each U-shaped leg, particularly at the height of the U-shaped base. By this coupling member, the chain links are adjacent to each other. It is connected to the chain link of. The longitudinal end of the U-leg extends perpendicular to the direction of movement of the movable device. Thus, this chain is in principle only bendable in one direction, and the mutually abutting vertical longitudinal ends of the U-legs of the adjoining chain links in principle prevent bending in the opposite direction.

Due to manufacturing tolerances and especially wear after long-term use, play occurs in the link-like connection between the individual chain links. Therefore, when a tensile load is applied, the individual chain links open each other. As a result, if this link chain is relatively long, the upper band does not maintain a distance parallel to the lower band, but rather sags, which causes the upper band to hang on the lower band as in a conventional drag chain. There is a possibility that it will be listed. In that case, wear and noise disturbances are introduced, just like conventional drag chains.

[0008]

According to the invention, this problem is solved in a device of the type mentioned at the outset in which the chain links are loosely inserted by at least one tightening rope extending in the direction of movement of the movable device. And a tightening rope clamps the chain links together and holds them free of play without the use of other coupling members.

In the link chain according to the present invention, the individual chain links are not connected to each other by a connecting member which may cause a play between them, but are firmly pressed and held by the tightening rope so that they are always in contact with each other. Therefore, the movement of adjacent chain links in the moving direction of the movable device does not play. Therefore, even if the link chain is relatively long, the upper band does not sag. Therefore, the upper band resting on the lower band and the resulting frictional wear and noise generation do not occur in the link chain according to the invention.

In a particularly preferred embodiment of the invention,
At least one tightening rope is connected with a spring-biased tightening device on the side beyond the end of the link chain. This makes it possible to permanently ensure the desired clamping pressure for holding the chain links together, even if at least one clamping rope extends over time.

In the preferred embodiment, the individual chain links are H-shaped. In that case, the H-web of each chain link extends transversely to the direction of movement of the movable device, and at each end of the H-web a pair of H-legs project in opposite directions from the H-web.
Link devices are arranged between the H-leg ends of adjacent chain links. The linking device between the individual chain links does not connect the chain links to each other, but only supports them in a defined way when adjacent chain links oscillate in the direction of a link. The link device may be formed by a circular disk or circular ring shaped link member formed in a link chamber formed in a complementary shape on opposite H-leg edges of adjacent chain links.

If H-shaped chain links are used, the chain links here are preferably threaded with four tightening ropes, each tightening rope being connected to one of the four H legs of each chain link. Corresponding, for example, guided through a through hole in the H leg extending in the direction of movement of the movable device. In that case, preferably the two tightening ropes of the pair of ropes respectively corresponding to the H leg ends are symmetrical with respect to the H web, and the linking device between each adjacent chain links is the two tightening ropes of the corresponding rope pair. It is located in the center of the space.

Each pair of ropes can be formed by a single tightening rope, which is guided by winding a turning roller on the side beyond one of the ends of the link chain. In that case, the deflecting rollers are preferably fixed to a stationary device, preferably by means of elastically bending clamping devices. The advantage of this solution is that the tightening ropes are always clamped and held as desired by the tightening device and that the length changes between the ropes belonging to the same pair of ropes can be compensated for by the deflection rollers. is there. This type of compensation has proven to be preferable. Both ropes of a pair of ropes have different radii of curvature when the link chain bends into the upper and lower bands.

Preferably, all H-legs on one side of the H-web of the chain link have H-leg edges extending perpendicular to the direction of travel of the movable device and on the other side of the H-web of the chain link. All of the certain H-legs are inclined out of the link axis of the link device, so that between the inclined H-legs of adjacent chain links that are not located in the bending portion of the link chain, the other chain of the bent link chain is A V-shaped gap open in the band direction is generated. This allows the link chain to bend in only one direction, in which case the bending radius is determined by the degree of inclination of the inclined H leg.

H of the individual chain links facing each other
Formed between the legs is a generally U-shaped receiving passage for receiving a number of conductors or cables, such as ribbon cables. The areas of the free ends of the H-legs that face each other can be joined using a stop remote from the web. In that case, the conductor and / or cable is introduced between the web and the stop and is prevented from falling out of the U-shaped receiving passage for the conductor and / or cable.

When the chain link is formed in an H shape, the wire receiving passages are formed on both sides of the H web. Therefore, in this type of link chain, the conductor and / or the cable can be guided on both sides of the H-web.

[0017]

EXAMPLES The present invention will be described in detail below with reference to examples. FIG. 1 shows a fixed device 13 and a reciprocating device 15.
1 shows a preferred embodiment of a link chain 11 according to the invention extending in between. In the illustrated embodiment, the path of movement of the movable device 15 extends above the stationary device 13. A loop region 16 is provided between the fixed device 13 and the movable device 15 of the link chain 11, and the chain upper band 17 connected to the movable device 15 is connected to the fixed device 13 by the loop region 16. A bond is formed between the chain lower bands 19.

The stationary device 13 is fixed in a fixed position. A device such as, for example, a robot is fixed to the movable device 15, and this device must be connected to the fixed device 13 via a conductor device guided by the link chain 11. This conductor device, not shown in the drawing, can have an electrical conductor device and / or an optical conductor device and / or a fluid conduit device. In the case of electrical conductor devices, this is individual conductors and / or cables, for example ribbon cables.

The link chain 11 is formed of individual chain links 21 that are identically formed. The exceptions are the end chain links 23 to 25 at both ends of the link chain 11, which are in contact with the movable device 15 or the fixed device 13. FIG. 2 shows the link chain 11 shown in FIG. 1 viewed from the opposite side.

One chain link 21 is shown in FIGS. 3 to 5. In that case, FIG. 3 is a perspective view and FIG.
Is a sectional view taken along the line AA of FIG. 3, and FIG. 5 is a vertical sectional view of the chain link 21. As is clear from FIG. 3, each chain link 21 has an H shape. The H web 27 has a movable device 15 as shown in FIG.
It extends laterally with respect to the moving direction of. Web of H 2
A pair of H-legs protruding from the H-web 27 to both sides are provided at both ends in the longitudinal direction of 7, respectively. An upper H leg 31 that projects upward and a lower H leg 33 that projects downward in FIG. 3 are provided on the pair 29 of front H legs in FIG.
The pair of rear H legs 35 in FIG. 3 includes an upper H leg 37 protruding upward from the H web 27 and an H leg 3 protruding downward in FIG.
9 are provided. As is apparent from FIG. 4, the left side edge 41 and the right side edge 43 in FIGS. 3 and 4 of the upper H legs 31 and 37 extend perpendicularly to the moving direction of the movable device 15. There is. 3 and 4 of the lower H legs 33 and 39, the left side edge 45 and the right side edge 47 extend obliquely with respect to the vertical side edges 41 and 43 so as to converge with each other.

At the transition point between the upper side edges 41 to 43 and the lower side edges 45 to 47, a partially circular link chamber 49 is formed, and the center of the circle is a vertical side edge 41. Through 43 and the extensions of the oblique side edges 45 through 47 coincide with the points of intersection with each other. Link chamber 49
Respectively to partially accommodate the circular link disk 51 shown in FIG. 6 in a top view and in FIG. 7 in a sectional view along line BB in FIG.

Two chain links 2 adjacent to each other
A link disc 51 is arranged between the two, respectively, and this link disc partially projects into the interior of each of the mutually facing link chambers 49 of the adjacent chain links 21. The link disc 51 thus forms with the link chamber 49 a linking device between the individual chain links, which leads to a defined swinging of the adjacent chain links 21 for bending the link chains 11 in the loop region 16. . However, the link disc 51 is not fixed to the corresponding chain link 21, but is simply inserted into the relevant link chamber 49.

Above and below the link chamber 49, FIG.
The upper and lower rope passages extend as seen in 4 and 4. These are shown in the drawing as a front upper rope passage 53 or a front lower rope passage 55 for the front H leg pair 29. The rope passages of the pair of H legs 35 at the rear in FIG. 3 are shown as an upper rear rope passage 57 or a lower rear rope passage 59.

In the figure, the link chamber 49 communicates with the rope passages 53 to 59. However, it is also possible for these rope passages to be separated from the link chamber 49 by a partition wall. In particular, as shown in FIG. 2, the chain links 21, 23 and 25 are entirely inserted by two tightening ropes. Referring to the illustration of FIG. 2, the front tightening rope is indicated by the reference numeral 61 and the rear tightening rope is indicated by the reference numeral 63 in the same figure. In the specific embodiment shown in the drawings, both tightening ropes are provided with a front turning roller 65 and a rear turning roller as shown in FIG. Formed as a pair of front ropes. The rear tightening rope 63 is formed as a pair of rear ropes having an upper rear tightening rope 73 and a lower rear tightening rope 75. The four tightening ropes 69 to 75 formed thereby are inserted through any one of the four rope passages 53 to 59 of each chain link 21. 4 tightening ropes 6
The free ends of 9 to 75 opposite the deflecting rollers 65 and 67 have a holding device 79 associated with the movable device 15.
It is fixed to.

The turning rollers 65 and 67 are pulled and fixed by a front tightening device 81 and a rear tightening device 83, respectively. The clamping devices 81 and 83 are biased against the stationary device 13 by a front clamping spring 85 or a rear clamping spring 87, respectively.
As a result, the link chain 11 is stretched between the chain side end forming the fixed chain device 89 of the fixed device 13 and the holding device 79 forming the movable chain device. By means of the tightening devices 81, 83 and the tightening springs 85, 87, the tightening ropes 61, 63 are tensioned and fixed, whereby the entire chain links 21, 23 and 25 are pressed against each other without any clearance and without play, and also at the ends. The chain links 23 and 25 are pressed against the holding device 79 or the fixed chain device 89 without gaps and without play.

In the illustrated embodiment, the link chamber 4
9 communicates with the adjacent rope passages 53, 55 to 57, 59. In this embodiment, the link disk 5
It is also possible to form a rope groove on the peripheral surface of 1 so that the tightening rope is guided in the rope passages 53 to 59 and also in the peripheral groove of the link disk 51.

By guiding the tightening rope on the peripheral surface of the link disk 51, the following advantages can be obtained.
That is, as shown in FIGS. 1 and 2, the lower H of FIGS.
The inclined side edges 45 and 47 of the legs 33 and 39 allow the bending of the link chain 11 in the loop region 16. With this inclined side edge, the link chain 11
Of the chain, the V-shaped gap is formed between the adjacent chain links 21 in the region of the long chain, that is, in the region of the chain upper band 17 and the chain lower band 19. The degree of inclination of the inclined side edges 41 and 43 and thus the opening width of the V-shaped gap between the chain links 21 determines the maximum possible radius of curvature of the loop region 16. (In Figures 3 and 4)
The vertical side edges 41 and 43 of the upper H-legs 31 and 37 contact each other in the region of the chain upper band 17 and the chain lower band 19 without a gap and in parallel. However, in the loop region 16, as is clear from FIGS.
They talk to each other so that they are separated from each other. If the lower tightening ropes 71 and 75 do not rest on the outer circumference of the link disc 51, they bend angularly at the exit point in the loop area 16 where they are in contact with the vertical side edges 41 and 43 which are open to each other. Will be done. When the angled bending is repeated, not only the tightening ropes 61 and 63,
At the exit points of the upper rope passages 53 and 57 (in FIGS. 3 and 4) a mechanically stronger load is applied than in the case of guiding the tightening ropes 61, 63 in an arc shape via the outer circumference of the link disk 51. , Wear it out.

If it is not necessary to guide the tightening ropes 61, 63 through the link disc 51 in such an arc shape, the rope passages 53 to 59 should be guided at a distance from the link chamber 49. It is also possible to do so. However, instead of guiding the tightening ropes 61, 63 through the rope passages in the chain links 21, 23, 25, the tightening rope guiding device may be inside the H legs 31, 33, 37 and 39 or, if necessary, outside. It is also possible to arrange rope shells or rope eyes, for example.

As already explained, the chain link 2
1 to 25 are held against each other simply by tightening the rope. Therefore, the link disc 51, which is used only with the link chamber 49 to determine the defined swing axis between adjacent chain links, is
Simply inserted into the corresponding link chamber 49,
Not fixed in it. In order to facilitate attachment of the link chain 11 before tightening the link chain 11 with the tightening ropes 61 and 63, a ring-shaped ridge can be formed in the peripheral surface area of the link disk 51 as shown in FIG. In that case, since the link chamber 49 is formed so as to have a widened portion on the peripheral surface side accordingly, the link disk 51 is retained in a predetermined manner in the link chamber 49. In that case, the radial extension of the widened portion on the circumferential surface side of the link chamber 49 must be larger than the radial extension of the ring-shaped ridge of the link disk 51 by a predetermined amount, whereby the link chamber 49. Enough room for the link disk 51 is guaranteed inside,
As a result, the chain links 21, 23, 2 that are adjacent to each other
It must be possible in any case to press firmly against each other by means of the tightening ropes 61 and 63.

Adjacent chain links 21, 23, 2
5, in order to be able to use the link guide also in the area of the H webs 27 which abut one another, the H webs 2 of the adjacent chain links 21, 23, 25
At least one in each of the seven (not shown)
Spheres, discs or rollers can be inserted into correspondingly formed indentations in adjacent H web edges.

As is apparent from FIGS. 1 and 2, the H web 2
The upper H-legs 31 and 37 or the lower H-legs 33 and 39 facing each other on the same side of 7 are connected by a stopper 91. This stopper is inserted into a stopper accommodating hole 93 formed in each of the four legs of the square chain link. The stopper 91 is separated from the H web 27. The conductors and / or cables (not shown in the drawing) to be guided by the link chain 11 are arranged between the H-webs of the chain links 21, 23, 25 and the stop 91. Therefore, they do not fall out of the two wire receiving passages formed by the H legs on both sides of the H web.

As is clear from FIG. 3, in particular, the H web 2
An upper H-leg 31, which has seven vertical side edges 41, 43,
The surface on the 37 side is provided with a curved surface. This is used to care for the conductor device inserted in the conductor receiving passage located outside with respect to the loop area 16.
The curvature of this surface of the H-web 27 is preferably chosen so that it forms in the loop area 16 a substantially arcuate mount for the conductor arrangement. Without this curved surface of the H-web, the conductor arrangement rests on the polygonal base in the loop area, which results in a higher mechanical load on the conductor arrangement.

Instead of the link disc 51, a link ring or a link ball can be used, which are inserted into a correspondingly formed link chamber 49. In order to assemble the link chain 11, the individual chain links 21, 23, 25 are arranged side by side in a linear arrangement with a link disc 51 interposed. Thereafter, four tightening ropes 69 to 75 were formed through the rope insertion holes 95 formed in the fixed chain device 89, through the rope passages 53 to 59 of all the chain links 21, 23 and 25, and in the holding device 79. It is inserted through the rope insertion hole 97. After fixing the free ends of the tightening ropes 69 to 75 to the holding device 79, the diverting roller 67 is tightened in the direction away from the fixed chain device 89 so that the entire chain links firmly contact each other and the holding device 79. It is tightened between the fixed chain devices 89. This tightening takes place when the link chain 11 is still extending linearly. Tightening rope 6
The stronger the tightening of 1 and 63, the stronger the tendency of the link chain to again align linearly after bending into a loop shape, which prevents the chain upper band 17 from hanging down towards the chain lower band 19.

The fact that the individual chain links are held in contact with one another by simply a tensioning rope does not result in mouth-opening play between the individual chain links. On the other hand, considering a conventional drag chain and link chain in which chain links are fixed by rotating bolts so as to contact each other,
The play of individual chain links and the opening of one another is generally unavoidable. Even in the case of a new drag chain or link chain, there is already some play in the longitudinal direction of the drag chain or link chain just to ensure that the adjacent chain links can be swung sufficiently lightly about the rotary bolt. Must exist. In this case, this play becomes large if it wears out during use. Therefore, in the case of the conventional drag chain, the maximum free support length of the chain upper band is limited. The maximum free support length of 6 meters could not be exceeded. This is a drag chain of the corresponding length with 100 or more rotating bolts, each of which has 10
This is easy to understand given that it is expanded to 0 times and becomes the whole play of the chain.

By contrast, a much larger free support length can be realized with the link chain according to the invention. This is because even if the number of chain links increases, all the chain links are firmly pressed against each other and no play occurs. Due to the fact that all the chain links are pressed firmly against one another, the link chains according to the invention can be used in any length. Therefore, by using this link chain, it is possible to realize an arbitrary movement direction of the movable device 15, whether it is horizontal movement, vertical movement, or diagonal movement.

In the illustrated embodiment, the centers of rotation of the link chamber 49 and the link disk 51 are located at the centers of the upper rope passage 53 and the lower rope passage 55. However, it is also possible to arrange this center of rotation outside the center of both rope paths. Depending on whether the center of rotation is displaced from its center position in the direction of the bending center point of the loop region 16 or in the opposite direction, the link center points are arranged at the centers of the upper and lower rope paths. In comparison, it is possible to obtain a predetermined lever action that causes a stronger or weaker antagonism of the slack of the upper chain band 17.

In each case, the V-shaped wedge gap between adjacent chain links is dimensioned such that the V-shaped tip of this gap is located at the center of rotation of the link disk and link chamber. . In the illustrated embodiment, the individual chain links are H-shaped.
In this way, two separate wire receiving passages can be obtained. Of course, the chain links can be formed in other shapes according to other requirements.

[Brief description of drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a link chain according to the present invention.

FIG. 2 is a perspective view of the link chain shown in FIG. 1 viewed from the opposite side.

3 is a perspective view showing a preferred embodiment of individual chain links of the link chain shown in FIG. 1. FIG.

4 is a cross-sectional view of the chain link shown in FIG. 3 taken along the line AA in FIG.

5 is a vertical cross-sectional view of the chain link shown in FIG.

6 is a side view of a link disc of the link chain shown in FIG. 1. FIG.

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

[Explanation of symbols]

 11 ... Link chain 13 ... Fixing device 15 ... Movable device 21, 23, 25 ... Link chain 27 ... Web 29, 35 ... Leg pair 31, 33, 37 ... Leg 41, 43, 45, 47 ... Leg edge 51 ... Link device 49 ... Link chamber 61, 63 ... Tightening rope 65, 67 ... Turning roller 69, 71, 73, 75 ... Tightening rope 81, 83, 85, 87 ... Tightening spring device 91 ... Stopper

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Herbert Heiduk, Germany – De-91785 Prinfeld, Am-Einseedel 24

Claims (16)

[Claims] 1. A link chain (11) for guiding a conductor between a fixed device (13) and a reciprocating device (15).
And a large number of chain links (21, 23, 25)
Are held in contact with each other, and the link chain (1
The chain bands (1) are bent in a loop shape and extend parallel to each other in the moving direction of the movable device (15).
7, 19), the chain links (25, 23) at the end of the chain are connected to a fixed device (15) or a movable device (13), and the link chain (11) has at least 1
One lead wire accommodating passage is formed, and a link device (49, 51) is provided at an end of the chain link (21, 23, 25) adjacent to the chain link (21, 23, 25). The device enables the adjacent chain links to swing with respect to each other, and the swing allows bending of the link chain (11) only in the bending direction. In the link chain, the chain links (21, 23, 25) is a movable device (1
5) is loosely threaded on at least one tightening rope (61, 63) extending in the direction of movement of the chain link (2).
1, 23, 25) are fastened to each other such that the chain links (21, 23, 35) are held against each other without play without the use of other coupling members. 2. Each chain link (21, 23, 25)
Has an approximately H-shaped profile and is provided with an H-web (27) extending transversely to the direction of movement, the ends of which are respectively adjacent chain links (21,
23, 25) H leg edges (41, 43, 4)
5, 47) each having two protruding H leg pairs (31, 33, 37, 39) extending transversely to the direction of travel, the width of the legs determining the chain link width in the direction of travel, And adjacent chain links (21, 2)
Link chain according to claim 1, characterized in that linking devices (49, 51) are arranged between the H-leg edges (41, 43, 45, 47) of (3, 25) respectively. 3. The four tightening ropes (69, 71, 73, 75) are inserted through the chain links (21, 23, 25), and the respective tightening ropes are the respective chain links (21, 23, 25). 4 H legs (31, 33, 3
7, 39), and each linking device (49, 5) for each H leg pair (29, 35).
3. The method according to claim 2, characterized in that 1) is arranged between a pair of ropes (69, 71 to 73, 75) provided for this pair of H legs (29, 35). Link chain. 4. A pair of tightening ropes (69,
Link chain according to claim 3, characterized in that 71 to 73, 75) extend symmetrically with respect to the H-web (27). 5. The link axis of the link device (49, 51) of each H leg pair (29, 35) is centered between the tightening ropes (69, 71 to 73, 75) of the corresponding rope pair. The link chain according to any one of claims 2 to 4, which is arranged. 6. A pair of ropes (69, 71 to 73,
75) characterized in that 75) is formed by only one tightening rope (61 to 63), which is guided by the diverting rollers (65 to 67) on the side beyond both ends of the link chain (11). The link chain according to any one of 3 to 5. 7. The diverting roller (65, 67) can be urged by pull-tightening against a corresponding end of the link chain (11) by means of a tightening device (81, 83, 85, 87). The link chain according to claim 6. 8. A tightening spring (85, 87) for the tightening device.
The link chain according to claim 7, wherein the link chain is provided. 9. At least one side of the H-web (27) having at least one H-leg (31, 33, 37, 39) projecting from this side of the H-web (27) remote from the H-web (27). Link chain according to any one of claims 2 to 8, characterized in that they are connected to each other by a stop (91). 10. A link disc (51) formed in each link device (49, 51) as a link ball or a circular disc of the whole area or ring shape, and a chain link (21, 23, 25) adjacent to each other. And a link chamber (49) for accommodating a corresponding portion of a corresponding link ball or link disc (51), which is formed in a complementary shape on the adjacent H leg edges (41, 43, 45, 47) facing each other. The link chain according to any one of claims 2 to 9, wherein the link chain is provided. 11. Each link chamber (49) is provided with a widened portion on the peripheral surface side, and when each link disk (51) is formed as a circular disk, a ring having a complementary shape on its peripheral surface. -Shaped ridge, or if it is formed as a circular ring, has a corresponding ring thickness, whereby with each ring disc (51) of the two chain links (21, 23, 25) concerned Link chain according to claim 10, characterized in that a locking connection is possible between the ring chambers (49). 12. Chain links (21, 2) which are adjacent to each other.
3, 25) facing each other with the H leg edges (41, 43,
45, 47) to form a link device, a partial spherical or partial circular link protrusion and a complementary link recess or link groove for accommodating the link protrusion are formed. The link chain according to any one of claims 2 to 11. 13. A ridge on the circumferential surface side is formed on each link protrusion, and a complementary wide portion is formed on each link groove, whereby a space between each link protrusion and a corresponding link recess or link groove is formed. The link chain according to claim 12, wherein the link chain can be engaged with the lock chain. 14. Chain links (21, 2) adjacent to each other
Adjacent H between H webs (3, 25)
Link chain according to any one of claims 2 to 13, characterized in that at least one sphere, disc or roller is inserted in a correspondingly shaped recess at the edge of the web. 15. A curved surface is provided on the surface of the H-web (27) facing radially outward with respect to the center of curvature of the loop region of the link chain (11). Link chain to any one of items 1 to 14. 16. Chain links (21, 23, 25)
All H legs (3) on one side of the H web (27)
1, 37) has H leg edges (41, 43) extending perpendicular to the moving direction, and chain links (21, 23,
25) All H's on the other side of the H web (27)
The legs (33, 39) are tilted out of the link axis of the linkage (49, 51), whereby the loop area (1
6) Adjacent chain links not in (21, 23,
25) A V-shaped gap is formed between the slanted H-leg ends (45, 47) in the opposite direction toward the chain band, in which case the tip of V rotates the link device (49, 51). The link chain according to any one of claims 2 to 15, wherein the link chain is inside the shaft.