RU184091U1 - Acrobatic device "Wheel of courage" - Google Patents

Abstract

The acrobatic device “Wheel of Courage” refers to circus equipment, in particular to auxiliary devices for artists, and can be used for circus performances when performing circus tricks using a drum-shaped wheel fixed to the end of a rotating two-link working boom. The attraction device "Wheel of courage" contains a working boom, consisting of a working link 1 and a counterweight link 2, mounted on the upper ends of the support racks 3 and 4 with the possibility of free rotation on the supporting bearing mechanisms 5 and 6. An impeller 7 is fixed at the end of the working link 1 drum-shaped for internal and external tricks, and at the end of the counterweight link 2 there is a counterweight 8. The self-aligning support bearing units 5 and 6 are made in the form of independent from one another the left half shaft 9 and the right half shaft 10. For increase structural rigidity additionally used rope stretches 13 and supporting cross member 15. The bearing assemblies support the bearing mechanism 5 and 6 used compensatory self-aligning bearing assemblies UCF 211. Compact construction of the proposed folding device extends operational capabilities, increasing variety of user trick implementation.

Description

The utility model relates to circus equipment, in particular to auxiliary devices for artists, and can be used for circus performances when performing circus tricks using a drum-shaped wheel fixed at the end of a rotating two-link working boom.

Known acrobatic devices containing a support device with cable extensions, support struts and a suspension device in the form of a solid support axis with support bearing mechanisms, on which a working boom is mounted rotatably, on which at least one drum-shaped impeller is mounted, for tricks of acrobats both inside and on the outer surface of the impeller (see, for example: https://www.youtube.com/watch?v=1BQ41yqOEuY, as well as https://www.youtube.com/watch?v = ieJt8vj7kKc).

The closest in technical essence is an acrobatic device containing a support device with cable extensions, support legs and a suspension device in the form of a solid support axis with support bearing mechanisms, on which a working boom is mounted with the possibility of rotation, on the working link of which a drum-shaped impeller is fixed , and a counterweight is attached to the counterweight link (see: https://www.youtube.com/watch?v=ieJt8vj7kKc).

The disadvantages of the known device, as well as other analogs, are large dimensions with high metal consumption, complexity during transportation, and also complexity during installation with low stability of the assembled structure.

The low structural stability is due to resonant vibrations that occur during rotation due to the rigid structure of the suspension device with a common solid supporting axis.

The known device has a longer working boom, which begins to resonate and creates a side-to-side swing after several rotations around its common solid supporting axis, and the common solid supporting axis does not damp out resonant vibrations, but rather enhances them. At the same time, in order to reduce the resonance effect, the known device must necessarily be fastened with extensions to the ceiling. Thus, the cables stretch the structure from a common continuous supporting axis. Moreover, two cables are directed down in opposite directions and one cable is directed up to the ceiling part. Such a mounting condition precludes the possibility of installing the structure in an open area without special supporting masts and trusses.

The technical result is to reduce the metal consumption of the device.

The technical result is achieved by the fact that in a circus acrobatic device made in the form of a drum-shaped wheel mounted on the end of a rotating boom containing a support device with cable extensions, support struts and a suspension device with support bearing mechanisms, on which the working boom is mounted for rotation , on the working link of which a drum-shaped impeller is fixed, and a counterweight is fixed on the counterweight link, according to a utility model, the device for suspension made in the form of axially located on the left and right sides of the support device, the left and right half axes are independent of each other, the axes of which are fixed at one end on one side on the support posts with the possibility of rotation in the supporting bearing mechanisms, and on the other hand are rigidly fixed on the sides arrows.

UCF 211 compensation bearing units are used in the supporting bearing mechanisms. The supporting device is additionally equipped at the bottom with a supporting cross-piece connecting the ends of the supporting posts to each other. The working boom is equipped with support plates mounted on its sides for mounting the axle shafts. Unlike analogues, the proposed device does not have a common solid supporting axis on which the entire construction of the working boom rotates, but there are two axles independent from each other, which are articulated with self-centering bearing units, which makes the rotation smooth and stable and dampens resonance vibrations, while without creating obstacles for the artist between the sides of the working boom when performing tricks, including allowing the artist to move freely between the sides of the working boom on the outer surface and impeller.

The essence of the utility model is illustrated by schematic drawings.

In FIG. 1 shows a general view of the device, view or front view; in FIG. 2 - top view; in FIG. 3 is a fragment of an image of an assembled device structure laid on an assembly site; in FIG. 4 is a fragment of an image explaining the attachment of a half shaft with a working boom.

The circus acrobatic device contains a working boom, consisting of a working link 1 and a counterweight link 2, mounted on the upper ends of the support posts 3 and 4 with the possibility of free rotation on the supporting bearing mechanisms 5 and 6.

At the end of the working link 1 is fixed the impeller 7 of a cylindrical shape for internal and external tricks, and at the end of the counterweight link 2 is a counterweight 8.

The supporting bearing mechanisms 5 and 6 are made in the form of independent from one another of the left half shaft 9 and the right half shaft 10, coaxially located on the left and right sides of the supporting device.

The axes of the left half shaft 9 and the right half shaft 10 are fixed at one end on the supporting posts 3 and 4 with the possibility of free rotation, and others

the ends are rigidly fixed on the sides of the working boom, equipped with mounting plates 11 with flanges 12.

To increase the rigidity of the structure, additional cable ties 13. In support bearing mechanisms 5 and 6, self-centering bearing units 14 are used, which can compensate for combined (radial and axial) loads and absorb heavy loads, while ensuring stable and durable operation. The lower ends of the support posts 3 and 4 are connected by a support cross member 15.

Using the proposed device is as follows.

First, they begin to assemble the device, which is carried out on a prepared platform for presentations. A performance boom is placed on a performance platform. The impeller 7 is fixed to the working link by means of bolted connections, and the counterweight is fixed to the counterweight link 2. After that, the racks 3 and 4 are mounted to the working boom alternately with the suspension device pre-installed on their end parts of the left and right axles. The assembled structure with the help of a lifting mechanism is raised by installing the racks 3 and 4 vertically with the location of the impeller 7 below the resulting structure.

Then the racks 3 and 4 are rigidly fixed in a vertical position by cable braces 13 and a supporting cross member 15. The device is disassembled in the reverse order.

After checking the strength of the installed structure, acrobatic stunts are performed.

Acrobatic stunts are performed on a freely rotating working arrow directly on its impeller 7, both on its outer surface and inside the impeller 7. The working arrow is rotated by moving the acrobat on the surface of the impeller 7, creating its rotation, changing with this movement rotation speed to perform appropriate acrobatic stunts.

The design of the proposed device due to the effect of the independent suspension, damping the resonance, allows not to fix the structure to the ceiling or dome. In fact, the design of the device can be placed in open areas. In addition, the smoothness of the stroke allows you to better control the projectile, and due to the smaller dimensions and the lack of a common solid support axis passing inside the working boom, it allows beginner acrobats to learn safer and overcome fear thresholds, as well as diversify and transform tricks.

The design of the device expands operational capabilities, increases ease of use, increasing the variety of tricks.

The proposed device is a small collapsible design, which greatly facilitates its transportation and storage with minimal space requirements.

Testing of prototypes of the device showed high reliability and safety of the design.

Claims (4)

1. A circus acrobatic device made in the form of a drum-shaped wheel mounted on the end of a rotating boom, containing a support device with cable extensions, support struts and a suspension device with support bearing mechanisms, on which a working boom is mounted for rotation, on the working link of which a drum-shaped impeller is fixed, and a counterweight is fixed on the counterweight link, characterized in that the device for suspension is made in the form of coaxially located on the left and right howl sides support apparatus independent from each other left and right semi-axes, the axes which are fixed at one end to one side of the supporting struts are rotatably bearing in the support mechanisms, on the other hand is rigidly fixed to the sides of the working boom. 2. The device according to p. 1, characterized in that in the supporting bearing mechanisms used compensating bearing self-centering nodes. 3. The device according to p. 1, characterized in that the supporting device is additionally provided in the lower part with a support cross member connecting the ends of the support posts. 4. The device according to p. 1, characterized in that the working boom is equipped with support plates mounted on its sides for attaching the axle shafts.

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