JP2006308072A - Constant pressure ball joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ball joint to be kept in a semi-fixed condition even when loosening a joint ball lock screw, allowing anyone to accurately adjust it to a desired position with simple operation. <P>SOLUTION: A disc spring is arranged at the rear part of the joint ball to be kept in a semi-fixed condition with constant pressure always applied thereto. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

In the present invention, in order to prevent the drooping due to gravity that occurs when the joint ball is released with the connection device attached, resistance is always applied by the arrangement of the leaf spring. Thus, the present invention relates to a constant pressure ball joint that enables the connecting device to be stably fixed at an optimal position.

Conventionally, when the ball joint is in a free state, it has drooped suddenly due to the weight of the mounting equipment. In order to shift the lock screw from the loosened and fixed state to the semi-fixed state where it does not hang down, fine adjustment of the lock screw is necessary, and only a specific point is required. Therefore, it was necessary to pay attention to the damage of the equipment, and training was required to fix it at the optimum position.

In addition, by applying pressure to the joint ball (2) with the adjusting screw cap (6), the joint ball lock screw (7) was able to be semi-fixed even when it was loosened. As a result, the load adjustment with the connected device attached was very severe. For general users, it has been difficult to stably adjust to a desired position.

Even if the joint ball lock screw (7) is loosened with the connecting device attached to the joint ball (2), there is no sudden drooping, and anyone can adjust it to a preferred position with a simple operation. A ball joint was required.

The problem to be solved is that a ball joint that maintains a semi-fixed state even if the joint ball lock screw (7) is loosened randomly, and allows anyone to adjust it to a desired position with a simple operation. Is the establishment of

In the configuration in which pressure is directly applied to the joint ball (2) with the adjusting screw cap (6) to obtain a frictional force, the accuracy of the joint ball varies and the pressure is lost due to wear. Therefore, a constant spring is always applied to keep a semi-fixed state by arranging a spring spring (4) behind the joint ball (2).

By making the polygonal ball case (10) and the polygonal ball holding cup (11) into a polygon, it is possible to prevent the joint ball (2) and the ball holding cup (3) from rotating. Therefore, the fixing force of the joint ball (2) can be improved when the joint ball lock screw (7) is tightened.

The present invention does not require a difficult operation, and after adjusting the semi-fixed state with the adjustment screw cap (6), the user can easily and securely adjust the desired position without using a tool simply by tightening the joint ball lock screw (7). become able to. Further, when the joint ball lock screw (7) is tightened by the polygonal ball holding cup (11) and the polygonal ball case (10), the fixing force of the joint ball (2) can be improved.

By applying pressure to the ball joint with a spring spring, it is easy to adjust the optimal position in a state where it does not hang down due to gravity even after installation.

As shown in FIGS. 1 and 2, the joint ball 2 is set in the ball case 1 of the main body, and the ball holding cup 3 and the spring 4 are inserted. Screw the adjusting screw cap 6 into the ball case 1.
The resistance of the joint ball 2 is adjusted by adjusting the adjusting screw cap 6. A lock nut 5 for maintaining this temporarily fixed state is attached. Finally, the joint ball lock screw 7 is assembled.

Even when the joint ball lock screw (7) is loosened, it can be adjusted with one hand, so anyone can easily and stably adjust to the desired position. Safety and shortening of operation time are expected.

Constant pressure ball joint perspective view Cross section of constant pressure ball joint Perspective view of constant pressure ball joint components Cross section of constant pressure ball joint components Cross section of adjustment screw cap with manual ring Perspective view of adjusting screw cap with manual ring Perspective view of polygonal ball case Cross section of polygonal ball case Perspective view of polygonal ball holding cup

Explanation of symbols

1 Ball Case 2 Joint Ball 3 Ball Holding Cup 4 Belleville Spring 5 Lock Nut 6 Adjust Screw Cap 7 Joint Ball Lock Screw 8 Lock Nut with Manual Ring 9 Adjust Screw Cap with Manual Ring 10 Polygon Ball Case 11 Polygon Ball Press Cup

Claims (4)

As shown in FIGS. 1 and 2, the joint ball (2) is set in the ball case (1) of the main body, and the ball holding cup (3) and the spring (4) are inserted. Screw the adjustment screw cap (6) into the ball case (1).
The resistance of the joint ball (2) is adjusted by adjusting the adjusting screw cap (6). A lock nut (5) for maintaining this temporarily fixed state is attached. Finally, install the joint ball lock screw (7). A ball joint constructed as described above. A ball joint that is easier to use by replacing the adjustment screw cap (6) with an adjustment screw cap (8) with a manual ring without the use of tools. A ball joint with a structure that applies pressure to the ball with a spring to make the movable state semi-fixed in the same manner. In order to prevent the joint ball (2) and the ball holding cup (3) from rotating together, a polygonal ball case (10) and a polygonal ball holding cup (11), which are polygonal, are used.

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