WO2014005712A1

WO2014005712A1 - Articulated connecting device

Info

Publication number: WO2014005712A1
Application number: PCT/EP2013/001966
Authority: WO
Inventors: Helmut Rube
Original assignee: Carl Stahl Gmbh
Priority date: 2012-07-06
Filing date: 2013-07-04
Publication date: 2014-01-09
Also published as: EP2870100A1; DE102012013568A1

Abstract

The invention relates to a connecting device comprising two functional parts that can be moved in relation to one another, in which device one functional part has a holding element (1) that forms a holding chamber (3), in which the other functional part (5) can be moveably held, the latter part resting in an active position against at least one transmission surface (11) of the holding chamber (3) in order to transmit active load forces and a connection part (23) being attached to the holding body (1). Said device is characterised in that the connection part (23) provided to transmit the load forces is hinged to the holding body (1) by means of a bearing point (25) allowing said part to move relative to the holding body (1).

Description

MULTI-JOINT CONNECTION DEVICE

The invention relates to a connecting device with two relatively movable functional parts, wherein the one functional part has a receiving body which forms a receiving space in which the other functional part is movably receivable, wherein for the transmission of acting load forces this in an operative position on at least one transfer surface of the receiving space rests and on the receiving body, a connection part is attached.

Connecting devices of this kind, via the components are coupled together in such a way that between these a power transmission is possible and the components can be set in desired relative positions corresponding to different lines of action of the attacking forces are state of the art and come in different designs in different areas for use. From the multitude of possible applications, for example, document DE 198 33 030 A1 discloses a connection device of this type for the connection of a gas spring rod to a movable component of a vehicle. Document DE 10 2009 050 139 A1 discloses, for example, the use in a load lifting system in which a stop means, which is connected to a load, can be connected via the connecting device to a lifting means, for example a pulling means of a crane. Further advantageous fields of use for such connecting devices relate to guying devices for Cable constructions in which a supporting cable or tensioning cable can be connected to a supporting structure via the relevant connecting device, whereby, depending on the geometry of the cable construction, different lines of action of the tensile forces to be transmitted result relative to the supporting structure.

The invention has for its object to provide a connecting device of the type considered available, which is particularly versatile in a simple design. According to the invention this object is achieved by a connecting device having the features of claim 1 in its entirety.

An essential inventive feature therefore consists in that the connection piece provided for transmitting the load forces is articulated on the connection body by means of a bearing point enabling a relative movement to the receiving body. As a result, the connecting device according to the invention can also be used in cases in which different operating positions between receiving body and serving as a power transmission element connection part can occur.

In a particularly advantageous manner, in the case of a connection piece or connection part in the form of a connecting rod, it can be rotatably mounted on a bearing point. The connecting device is thereby also easily used in situations where different rotational positions between see connecting rod and receiving body are required operationally.

The bearing point formed between the united shell parts can advantageously have a rotary bearing transmitting axial forces between the connecting rod and the receiving body, this bearing being able to be formed by a roller bearing. In particularly advantageous embodiments, the rotary bearing provided on the receiving body for the connecting rod can have a roller bearing, preferably an axial rolling bearing and / or a radial rolling bearing. The rolling bearing may be a tapered roller bearing, preferably it is a double tapered roller bearing. The double cone roller bearing is then fixed via a threaded insert in the receiving body.

The bearing can be formed in or on the receiving body. Furthermore, the bearing point outside of the receiving body, but preferably in its region, for example in the transition region between receiving body and subsequent connecting rod, particularly preferably on the connecting rod itself, be arranged. The connecting part may be coaxial with the other functional part in an extended position.

In advantageous embodiments, the one functional part can have a joint body with convex surface areas which, in the operative position, interact with concave wall parts of the receiving space forming the transfer surface.

In such embodiments, the connecting device may form a ball joint connector, wherein the joint body of a functional tion part spherically shaped and is connected via a tapered neck portion with a located in functional position outside the receiving space connecting part, which is attachable to a support structure.

In order to allow a mobility corresponding to several degrees of freedom relative to the receiving body for the joint body, this may have a slot opening in which the connecting part of the joint body is movable, wherein the slot opening is preferably formed such that the joint body between an extended position and a perpendicular thereto pivoted position is movable. As a result, there are various adjustment possibilities available for force transmission of push or pull forces, up to virtually vertical oblique tension or oblique thrust, in particular in connection with the mobility of the connecting rod, which is for example mounted rotatably on the bearing point of the receiving body. The receiving body may be formed in advantageous embodiments of at least two interconnected shell parts, which define the receiving space between them.

With such a construction of the receiving body, the receiving space formed by the united shell parts can completely surround the spherical part of the joint body, leaving the slot opening, because the spherical part can be installed in the receiving space before the shell parts are combined. Therefore, the slot opening provided for the mobility of the connecting part of the joint body in the receiving body need not be shaped or dimensioned such that installation through the slot opening is possible.

In alternative embodiments, instead of being composed of shell parts, the receptacle body may be formed by a one-piece body. In such embodiments, the arrangement may be such that the receiving space for the installation of a functional part has an access opening which is shaped so that it allows the passage of the functional part only in a position offset from the operative position installation position, in which case a displacement - Device is provided with at least one movable displacement element, by means of which the functional part located in the receiving space the installation position in the direction of the respective active position can be fed, which corresponds to the operating position, in which an outlet of the functional part, for example in the form of the ball joint part, is prevented from the opening. With regard to the displacement device, the arrangement can advantageously be made such that the connection part is provided as a displacement element of the displacement device and can be adjusted to desired axial positions at the bearing point of the reception body. Thereby, the displacement device can be set in an axial position, which corresponds to the mounting or installation position, in which the joint body is movable through the opening of the receiving body. In a contrast changed axial position of the joint body can be delivered toward the operative position by means of the displacement device such that it cooperates for transmitting power with the transfer surface of the receiving space and is in this operative position in a position in which no exit from the opening of the receiving space possible is.

The invention with reference to embodiments shown in the drawings will be explained in detail. Show it:

Fig. 1 is a perspective oblique view of an embodiment of the connecting device according to the invention;

Fig. 2 is a perspective oblique view of the embodiment, wherein a shell part of the receiving body is shown in the raised position;

3 and 4 are front and side views of the embodiment, respectively, with an associated hinge body shown in a stretched position, respectively; 5 shows a section along the section line V - V of Fig. 3.

6 shows a section along the section line VI -VI of Fig. 4. 7 shows a perspective oblique view of a second exemplary embodiment with a one-piece receiving body;

Fig. 8 is a front view of the embodiment of Fig. 7; 9 shows a section along the section line IX - IX of Fig. 8.

FIG. 10 is a perspective view, oblique in longitudinal direction, of the embodiment according to FIGS. 7 to 9; FIG. 1 1 is a perspective oblique view of the embodiment of FIGS. 7 to 10, wherein the joint body is shown in an inclined position, and

Fig. 12 is a section corresponding to the section line XII - XII of

Fig. 1 1.

Figs. 1 to 6 show a first embodiment of the connecting device according to the invention. To form a kind of ball joint connector, a receiving body 1 has an inner receiving space 3, the wall of which form transfer surfaces 11.

These act to transmit load forces, such as compressive or tensile forces, with convex surface parts of a joint body 5 together. More specifically, this has a ball head 7, which, while leaving a kind of bearing clearance, which allows movement of the ball head 7 in the receiving space 3, accommodated in the receiving space 3 fitting is. The joint body 5 is integrally via a tapered neck portion 9 with a located in the operating position outside of the receiving space 3, radially enlarged collar 1 3, which merges into a threaded bolt 1 5. In the example of Fig. 1 to 6 of the receiving body 1 is in each case constructed in two parts shell parts 1 7 and 19, which are screwed together. The shell parts 1 7, 19 are mirror images of the same design and the inside designed such that the receiving space 3, the ball head 7 of the joint body 5 in the built-active position, leaving only a slot opening 21 completely surrounds. The slot opening 21 is dimensioned such that an exit of the ball head 7 from the receiving space 3 through the opening 21 is not possible. However, the slit opening 21 allows pivotal movements of the joint body 5, as shown in Fig. 1 between an extended position and at right angles pivoted position, wherein the tapered neck portion 9 of the joint body 5 moves within the slot opening 21. For the load transfer between the joint body 5 and the receiving body 1 is thus not only a rotational mobility, but a tilt option available.

For the forwarding of the load forces from the receiving body 1, a connection part in the form of a connecting rod 23 is provided on this. This is rotatably mounted on a bearing, which is formed on the receiving body 1 between the combined shell parts 1 7, 19. In the present embodiment, a ball bearing 27 is arranged in a seat 25 between the shell parts 1 7, 1 9 in this regard. The connecting rod 23 has an enlarged, end collar 29 and a thread 31, on which a union nut 33 is arranged, which secures in cooperation with the collar 29, the rotatably mounted connecting rod 23 on the ball bearing 27 and thus on the receiving body 1 axially. The second embodiment shown in FIGS. 7 to 12, as can be seen most clearly from FIGS. 7, 8 and 11, has a one-piece closed receiving body 1. In this housing construction, the slot opening 21 is shaped and dimensioned such that the passage of the ball head 7 of the joint body 5 is possible only in an installation or assembly position, which is shown in Fig. 7 to 10. In this position, the ball head 7 is not in contact with the transfer surface 1 1, which is formed by the inner wall of the receiving space 3, but is axially offset in the direction of the connecting rod 23, as most clearly shown in FIGS. 9 and 10 is seen. In this installation or assembly position, the ball head 7 is located relative to the slot opening 21 in a region in which the slot width allows the passage of the ball head 5. On the other hand, FIGS. 11 and 12 show in contrast the operating position in which the ball head 7 is in its operative position in an operative position approximated to the transmission surface 11 in the receiving space 3, the ball head 7 being aligned with a section of the slot opening 21 , Where a narrowing of the slot width is formed, so that no passage of the located in the operative position ball head 7 is possible. Such a configuration of the slot opening 21 is known per se in a receiving body receiving a ball head from the document DE 10 2009 050 1 39 A1.

In order to move the ball head 7 from the installation position into the operative position shown in FIGS. 11 and 12 and to secure it in this position, a displacement device is provided which has a movable displacement element. In the present example of Fig. 7 to 12 for this purpose, the connecting rod 23 is not only rotatably connected to the receiving body 1, but also axially adjustable on the receiving body 1. The inner end of the connecting rod 23 rests as a displacement element on an axially movable in receiving space 3 pressure plate 35, which forms a kind of bearing shell for the ball head 7. FIGS. 7 to 10 show the connecting rods ge 23 and thus the pressure plate 35 in an axial position in which the ball head 7 can assume the mounting or mounting position, so that a passage through the slot opening 21 is made possible. In Fig. 1 1 and 12, an axial position of the connecting rod 23 is shown, in which the ball head 7 is delivered by means of the pressure plate 35 in the operative position, wherein no passage of the ball head 7 through the slot opening 21 is possible.

To adjust the axial position is located on the thread 31 of the connecting rod 23, a nut 37 which is arranged between races 39 of a thrust bearing 41 in the form of a double tapered roller bearing. This is fixed in the receiving body 1 by means of a threaded insert 43. By means of a second nut 45, as a counter nut to the interior of the thrust bearing 41 located nut 37, which serves as a sliding element connecting rod 23 in the respective setting position axially securable.

The connecting device according to the invention is characterized in particular by the fact that the slot opening 21 extends to form a setting path for the joint body 5 from a free end face of the associated receiving body 1 to a recess, preferably approximately centrally, arranged in at least one side wall of the receiving body 1 and insofar as the joint body 5 and / or the receiving body 1 and / or connecting parts on the joint body 5, for example in the form of the threaded bolt 15 and / or on the receiving body 1 are provided with at least one bearing. If the connecting device according to the invention is used for stationary force introduction solutions in which the longitudinal axis of the connecting rod 23 assumes a stationary position with respect to the longitudinal axis of the threaded bolt 1 5, which forms the connection point of the joint body 5, the joint body 5 can with its Align connection point along the adjustment path of the receiving body 1 free and thus ensure a reliable load transfer into the receiving body 1. In that regard, the rela- tive mounting position of receiving body 1 to joint body 5 determined by the slot opening 21, freely adjustable within predetermined limits.

In order to achieve this functionality, in particular in order to be able to cover the large number of force introduction possibilities that result from possibly acting on the load connection points of joint body 5 and / or receiving body 1, rotating loads or the respective force application point is radially offset, as explained above , Bearings present, which may be of conventional design, for example in the form of Radiallagern, bearings, ball bearings, needle bearings, tapered roller bearings and the like and more, as well as combinations of these bearing depending on the respective load introduction situation.

In order to reliably cover the entire force introduction region, it is preferably provided that the length of the adjustment path is selected at least such that the longitudinal axis of a connection point, for example in the form of the threaded bolt 15 of the joint body 5, in the respective possible end positions of the joint body 5 within the setting path include at least a right angle with each other. Since the joint body 5, in particular in the end positions of the adjustment track, can be supported at least partially on housing parts of the receiving body 1, particularly high absorption and retention forces can be achieved in these areas.

Claims

P a n t a n s p r e c h e

Connecting device with two relatively movable functional parts, wherein the one functional part has a receiving body (1) bi ldet a receiving space (3) in which the other functional part (5) is movably receivable, wherein for the transmission of acting load forces this in an operative position on at least one transfer surface (1 1) of the receiving space (3) is present and wherein a connecting part (23) cooperates with the receiving body (1), characterized in that provided for transmitting the load forces connecting part (23) by means of a relative movement to Receiving body (1) enabling bearing (25) on the receiving body (1) is articulated.

Connecting device according to claim 1, characterized in that the connecting part in the form of a connecting rod (23) is rotatably mounted on the bearing point (25).

Connecting device according to claim 2, characterized in that the bearing point (25) has an axial forces between connecting rod (23) and receiving body (1) transmitting rotary bearing (27, 41).

Connecting device according to claim 3, characterized in that the rotary bearing has a roller bearing (27, 41), preferably an axial roller bearing and / or a radial rolling bearing.

Connecting device according to claim 4, characterized in that for the connecting rod (23) provided pivot bearing has a rolling bearing in the form of a tapered roller bearing (41), wherein preferably a double tapered roller bearing is provided.

6. Connecting device according to claim 5, characterized in that the double tapered roller bearing (41) via a threaded insert (43) in the receiving body (1) is fixed.

7. Connecting device according to one of the preceding claims, characterized in that the bearing point (25) is arranged in or on the receiving body (1) or outside thereof but in the region thereof.

8. Connecting device according to one of the preceding claims, characterized in that the connecting part in an extended position coaxial with the other functional part (5).

9. Connecting device according to one of the preceding claims, characterized in that the one functional part has a joint body (5) with convex surface areas (7) in the operative position with concave, the transfer surface forming wall parts (1 1) of the receiving space (3 ) interact.

10. Connecting device according to one of the preceding claims, characterized in that for forming a kind of ball joint connector of the joint body (5) of a functional part has a ball head (7) via a tapered neck portion (9) with a functional position outside of the receiving space (3 ) located connecting part (13, 1 5) is connected, which is attachable to a support structure.

1 1. Connecting device according to claim 9, characterized in that the receiving body (1) has a slot opening (21) in which the neck part (9) of the joint body (5) is movable, wherein the Slot opening (21) is preferably designed such that the joint body (5) is movable between an extended position and a perpendicular thereto pivoted position.

12. Connecting device according to one of the preceding claims, characterized in that the receiving body (1) from at least two interconnected shell parts (1 7, 1 9) is formed, which delimit between them the receiving space (3).

13. Connecting device according to claim 1 1, characterized in that by the united shell parts (1 7, 19) formed receiving space (3) the ball head (7) of the joint body (5), leaving the slot opening (21) completely surrounds.

14. Connecting device according to one of the preceding claims, characterized in that the receiving space (3) for the installation of the other functional part (5) has an access opening (21) which is shaped such that it the passage of the functional part (5) only in a displacement position offset from the operative position allows, and that a displacement device with at least one movable displacement element (23) is provided, by means of which in the receiving space (3) located functional part (5) from the installation position in the direction of the respective operative position can be delivered.

1 5. Connecting device according to one of the preceding claims, characterized in that the connecting part (23) provided as a sliding element of the displacement device and at the bearing point (25) of the receiving body (1) is adjustable in desired axial positions.

16. Connecting device according to one of the preceding claims, characterized in that the slot opening (21) forming a setting path for the joint body (5) from a free end face of the associated receiving body (1) to one, preferably approximately centrally, in at least one Side wall of the same arranged recess extends and that the joint body (5) and / or the receiving body (1) and / or connecting parts on the joint body (5) and / or the receiving body (1) are provided with at least one bearing.

1 7. Connecting device according to claim 1 6, characterized in that the length of the adjustment path is at least selected such that the longitudinal axis of a connection point (Gewindebolzenl 5) of the joint body (5) in the respective possible end positions of the joint body (5) within the setting at least enclose a right angle with each other.