ball joint

Description

[0001] Ball joint There are already various designs of ball joints, by means of which, for example, a rearview mirror can be positioned in any position. to be determined. For example, two spherical hemispheres can be pressed against a spherical socket or spread apart by springs to create a permanent to achieve a hold. It is also known to press a spherical sector against a ball socket using a spring, and in addition to this. to provide a locking pin that fits into one of the bores of the sieve-shaped ball socket and thus secures the ball joint in the inserted position It locks in place. Therefore, it can only engage in a position where the locking pin engages a bore; changing the position prevents the locking pin from disengaging. Locking pin required.

[0002] Furthermore, there are joint connections in which the fixing of the joint ball in the ball socket is achieved by means of a pneumatic or is carried out using a hydraulically actuated piston, with an additional spring only being installed to provide some friction. to create a space between the piston and the joint socket, so that adjustment of the joint connection is possible without self-loosening. The built-in Therefore, a spring is not used to fix every set position of such a joint connection. In other joints that move in a specific direction... To prevent the joint pin from being constantly adjusted, it rests on a rubber ring placed in the socket to prevent the joint pin from being pushed out. to prevent the pan from shifting. Such a rubber ring is therefore not intended to fix the joint connection in a set position.

[0003] The subject matter of the invention now relates to a ball joint in which the spring pressure The externally spherical pressure bolts are pressed against the ball socket solely by spring force. Furthermore, the pressure bolts and The ball joint receiving the compression spring does not engage with the ball socket; instead, it is connected to the socket by an overlapping screw. The ball socket is held in place by the connected ball holder. This has the advantage that the pressure acting on the ball socket can be adjusted by these screws. and is adjustable, and the screws cannot loosen on their own. It is also advisable to use a rubber or similar material for the pressure bolt. to produce a rubber-like plastic, which significantly increases the friction between this and the generally metallic ball socket and prevents damage caused by corrosion, for example.

[0004] The ball joint according to the invention is therefore not only as simple as possible in its construction, but it is thus a completely Vibration-resistant adjustment can be made at any desired position at any time, without the need for special tools. Also, a Adjusting, increasing, or decreasing the system pressure is easily accomplished by adjusting the screws accordingly. to carry out.

[0005] In the drawing, an embodiment of the subject matter of the invention is shown schematically in section.

[0006] The sphere a is provided with a projection b which supports the object to be held, which is, for example, a rearview mirror or a It could be a spotlight, a tripod, or anything else. The ball holder d encompasses the ball a and is attached to the ball socket by means of screws g. c connected. The ball a has a bore opposite the ball socket c, which receives an externally spherical pressure bolt e, which is connected by a compression spring f is constantly pressed outwards against the ball socket c.

[0007] The ball joint is now designed such that only the pressure bolt e comes into contact with the ball socket c, while the ball a does not it is not in contact with the ball joint, but is only encompassed by the ball holder d. In this way, it is ensured that the entire ball joint is always subjected to uniform and The ball sits reliably in the ball socket c under consistently high pressure without any play.

[0008] In order to ensure that the ball joint is as force-fit as possible, the pressure bolt e is made of rubber or a rubber-like plastic. This This has the great advantage that the friction between the metallic ball socket c and the pressure bolt e is many times higher than when The pressure bolt would also be made of metal. Furthermore, this prevents corrosion and galling in the ball socket, whereby nevertheless, convenient adjustments can be made at any time.

[0009] The pressure acting on the ball socket c can easily be adjusted or readjusted by means of the screws g. In addition, These screws will not loosen on their own, as they are under the pressure of the compression spring f. Therefore, loosening or loosening due to vibrations is not possible. not possible, so that the ball joint according to the invention ensures a permanent and reliably secure fit.

Claims

[0010] PATENT CLAIMS: e.g. ball joint in which an externally spherical bearing is embedded in the joint ball and is under spring pressure pressure bolt against a ball socket, characterized in that the pressure bolt (e) is only held against the by spring force (f). The ball socket (c) presses and the ball joint (a) which receives the pressure bolt (e) and the compression spring (f), and which does not rest against the ball socket (c), held in an adjustable and vibration-proof position by a ball holder (d) that extends over them and is connected to the ball socket (c) by screws (g).

2. Ball joint according to claim z, characterized in that the pressure bolt (e) is made of rubber or a rubber-like plastic. Printed documents attached: German patent specifications no. 707 617, ö52 o22.