Gravity-driven self-locking mechanical gripping device with logarithmically increasing radius and variable curvature cam surface.

Abstract

The invention relates to a gripping device for mechanically holding longitudinal elements such as hoses, pipes, cables, etc., which operates entirely by gravity without the use of any external springs, magnets, screws, latches, or actuators. The developed device comprises a main body, a rotating shaft located within this main body, an eccentric cam with a variable curvature that rotates freely around the rotating shaft and has a radial radius whose outer circumference increases logarithmically with respect to the rotating shaft, and a fixed support surface opposite the eccentric cam, which has a first clamping zone with a stepped transition and a second clamping zone.The eccentric cam rotates under the influence of the weight of the object placed inside the device; the object is first guided to the first clamping zone, and then, due to the logarithmic increase in radius with increasing load, it is guided through the guide channels to the second clamping zone, gradually expanding the contact surface area and thus increasing the clamping force, enabling automatic locking.

Description

Gravity-Locking Variable with Logarithmically Increasing Radius Mechanical Gripper with Curved Cam Surface Technical Area The invention relates to the mechanical holding of longitudinal elements such as hoses, pipes, cables, and the like. It relates to gripping devices. State of the Art Common fasteners include spring latches, elastic clips, magnetic systems, or hand-tightened cams. These systems utilize additional parts, wear, spring fatigue, and manual mechanisms. Disadvantages include the need for compression and difficulty adapting to objects of different diameters. It is located. Purpose of the Invention The purpose of the invention is to create a system without using external springs, magnets, screws, latches, or electric actuators. The cam profile has a radial radius that increases logarithmically as the weight of the working, placed object increases. by means of gradually increasing the compressive force, which automatically turns off when the load is removed. The goal is to develop a gripper that is free-moving, has a simple mechanical structure, and is easy to manufacture. Description of the Invention The invention is a clamping device for securing hoses, pipes and cables, and essentially It includes a main body. A rotating shaft is located inside the main body. It has an eccentric cam that can rotate freely around the shaft. The outer circumference of the eccentric cam is radially aligned with the shaft, with the distance between the two sides increasing logarithmically. It features a continuous cam profile with variable curvature and a specific radius. Opposite the eccentric cam is a fixed support surface. This fixed support... the first compression zone with a stepped transition created on its surface and the second The compression zone is located between the first and second compression zones. They are connected to each other by guide passage channels. When the pipe, hose, or cable placed inside the clamping device moves downwards, The weight of the object acts on the eccentric cam, causing the cam to rotate. With a logarithmically increasing radius with each rotation, the geometry first compresses the object into the first compression region, then the load with the increase, through the guide passage channels to the second compression zone It directs the contact surface area gradually, thereby increasing the compressive force. The object is raised and then clamped and locked against the body. As the load increases, the contact force also increases, and thus the compressive force is equal to the weight of the object. It rises proportionally. The effect of weight when the object is lifted upwards. This eliminates the problem, as the eccentric cam rotates freely in the opposite direction, reducing compression. It allows the object to be removed from inside the apparatus. There are no springs in the apparatus. There are no magnets, latches, or external clamping elements. How the invention can be applied to industry. The main body of the invention can be produced from engineering plastic by injection molding. The eccentric cam can be made of plastic or metal. The rotating shaft is one with the main body. It can be produced as a single piece or as a separate pin. Hoses of different diameters, They can be mass-produced industrially in various sizes for pipes and cables. 2

Claims

1. The invention is a gripping device that operates by the effect of gravity; its feature is: - main body, - a rotating shaft located inside the main body, - able to rotate freely around the rotating shaft, and its outer circumference is the distance relative to the rotating shaft. featuring a continuous cam profile of variable curvature with a logarithmically increasing radial radius. eccentric cam, - a fixed support surface located opposite the eccentric cam, - the first one with a stepped transition created on the fixed support surface in question compression zone and second compression zone The inclusion of the eccentric cam causes it to rotate under the influence of the weight of the placed object, first moving the object to the first position. in the compression zone, the second radius increases logarithmically with increasing load. by directing it to the compression zone and gradually increasing the contact surface area by increasing the compressive force, any spring, magnet or external compression It provides automatic locking without the need for any manual intervention.

2. It is a holding device according to claim 1, and its characteristic is that the contact surface of the eccentric cam is on the rotating shaft. According to this, it has an increasing radial radius profile in the form of an Archimedes spiral.

3. A retaining device according to claim 1 or 2, characterized by its position on the first support surface. the compression zone and the second compression zone, gradually compressing objects of different diameters. They are connected to each other by guide passage channels that will allow for compression.

4. A clamping device according to any of claims 1 to 3, whose characteristic is that it holds the rotating shaft to the main body. a pin that is either integrated with the main body or a separate pin that is subsequently mounted to the main body It consists of elements. 3