RU2772294C1 - Balanced positional game device - Google Patents

Abstract

FIELD: balanced positional games.

SUBSTANCE: invention relates to balanced positional games, where weighted game pieces (for example, chess, checkers) are used as game elements. The device consists of a game table (GT) with a playing field (PF) for game pieces (GP) with an area of ​​ GT, a larger area of ​​ PF, a base having a lower part in contact with the PF, and a horizontal upper part; a support assembly installed between the upper part of the base and the lower surface of the GT, having an upper support with a recess fixed to the lower part of the GT, a support element (SE) interacting with the recess in the upper support, ensuring the mobility of the GT relative to the upper part (UP) of the SE; GT weights attached to the underside of the GT, providing the position of the center of gravity GT below the contact surface of the HF OE with a recess in the upper support, while the recess in the upper support has the shape of a trihedral prism with roundings of the upper part, and the SE has the shape of a prism with roundings in the upper part with radii smaller than the radii of roundings in the upper part of the upper supports; the angle α between the side surfaces of the SE HF and the recess in the upper support is determined by the formula:

where ƒ_sl is the coefficient of sliding friction GP over PF.

EFFECT: increased sensitivity to the weight of the GP and the occurrence of imbalance and elimination of the possibility of free rotation of the GT about the vertical axis in the event of an imbalance when removing or installing the GP in the plane of the table.

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Description

The invention relates to balanced positional games, where weighted game pieces (for example, chess, checkers, etc.) are used as game elements.

A game device is known (US patent No. 1215033 dated February 6, 1917), consisting of a table, a game board divided into two equal parts located relative to the swing axis, on the upper surface of which game pieces are placed, a base, the lower part of which is installed on table; a support assembly installed between the upper part of the base and the lower surface of the game board, having an upper support with a prismatic recess fixed on the lower part of the game board, a lower support in the form of a cone with an angle smaller than the angle of the conical recess fixed on the upper part of the base.

The disadvantage of the known device is the possibility of balancing in only one angular direction.

A device for a balanced game is known (patent US No. 4358110 dated 10/16/1980), consisting of a base having a fulcrum at the top, an element balancing relative to the fulcrum, having equidistant levers attached to it with a plurality of platforms for a plurality of weight game pieces on each lever, means indicating that the predetermined angle of inclination of the balancing element with levers has been exceeded.

The disadvantage of this device is the possibility of circular rotation of the element with levers in the event of a slight imbalance.

A device for a balanced positional game (BPI) is known (patent RU No. 2719105 dated 29.08.2019, prototype), consisting of a game table (IS) with a playing field (IP) on the upper surface of the IC with IP marking for positioning game pieces (IF ), with IP area, larger IP area; a base having a lower part in contact with the supporting surface of the balance positional game device and an upper part; a support assembly installed between the base and the IC, having: an upper support with a recess located in the lower part of the IC, a lower support installed on the upper part of the base, and a support element (OE), the upper part of which interacts with the surface of the recess in the upper support, providing IS mobility relative to the upper part (HF) of the OE, and the lower part of the OE is installed in the lower support of the reference node; IC weighting agents fixed on the bottom surface of the IC, providing the position of the center of gravity of the IC below the contact surface of the HF OE with a recess in the upper support.

The disadvantage of this device is the reduced sensitivity to the weight of the IF and the occurrence of imbalance due to sliding friction between the spherical surfaces of the support node and the possibility of free rotation of the IS about the vertical axis in the event of an imbalance and moment of force when removing or installing the IF in the plane of the IS.

The technical problem solved by the invention is to increase sensitivity to the weight of the IF and the occurrence of imbalance and to exclude the possibility of free rotation of the IS about the vertical axis in the event of an imbalance and a moment of force when removing or installing the IF in the IS plane.

The technical problem is solved in the BPI device, consisting of: IC with IP on the upper surface of the IC with IP marking for positioning the IF, with an area of the IP, a larger area of the IP; a base having a lower part in contact with the supporting surface of the BPI device and an upper part; a support unit installed between the base and the IC, having an upper support with a recess located in the lower part of the IC, a lower support installed on the upper part of the base, and an OE, the upper part (HF) of which interacts with the surface of the recess in the upper support, ensuring the mobility of the IC relative to the HF OE, and the lower part of the OE is installed in the lower support of the reference node; IC weights fixed on the bottom surface of the IC, providing the position of the center of gravity of the IC below the contact surface of the upper part of the OE with a recess in the upper support, while the recess in the upper support has the shape of a prism with roundings of the upper part; The MA has the shape of a prism with roundings in the upper part with radii smaller than the radii of roundings in the upper part of the upper support; the angle a between the side surfaces of the HF OE and the recess in the upper support is determined by the formula:

where ƒ _tr is the coefficient of sliding friction of the IF according to the IP.

To improve the manufacturability of the device, the OE has the shape of a trihedral or rectangular prism with roundings in the upper part, which is in contact with the upper part of the prismatic recess in the upper support.

The solution of the technical problem - increasing the sensitivity to the weight of the IF and the occurrence of imbalance and eliminating the possibility of free rotation of the IS relative to the vertical axis in the event of an imbalance and a moment of force when removing or installing the IF in the IS plane - is achieved due to the following set of distinctive features of the BPI device: the upper support has the shape of a prism with rounded upper parts; The MA has the shape of a prism with roundings in the upper part with radii smaller than the radii of roundings in the upper part of the upper support; the angle α between the side surfaces of the HF OE and the recess in the upper support is determined by the formula:

where ƒ _tr is the coefficient of sliding friction of the IF according to the IP.

To improve the manufacturability of the device, the OE has the shape of a trihedral or rectangular prism with roundings in the upper part, which is in contact with the upper part of the prismatic recess in the upper support.

The above sets of distinctive features were not found in the course of the patent information search, therefore, the claimed design of the device meets the criterion of "novelty". It also does not follow explicitly from the prior art, therefore, the design of the device meets the criterion of "inventive step".

Figure 1 shows a General view of the device.

Figure 2 and 3 - the design of the support node with the support element in the form of a trihedral prism.

Figure 4 and 5 - the design of the support node with the support element in the form of a rectangular prism.

Device BPI (figure 1-5) consists of a gaming table 1 with a playing field 2 on the upper surface 3 of the gaming table 1 with the markings of the playing field 2 for positioning game pieces 4, with the area of the playing table 1, the larger area of the playing field 2; a base 5 having a lower part 6 in contact with the supporting surface 6a of the BPI device and an upper part 7; support node 8 installed between the upper part 7 of the base 5 and the lower part Behind the gaming table 1, having: the upper support 9 with a recess 10 (Fig.2, 4) in the form of a triangular prism in cross section with roundings in the upper part, fixed in the lower parts Behind the gaming table 1, the lower support 9a (figure 2, 4) installed on the upper part 7 of the base 5, the support element 11, the upper part 12 (figure 3) of which interacts with the surface of the recess 10 in the upper support 9, providing mobility gaming table 1 relative to the upper part 12 of the supporting element 11, and the lower part 13 of the supporting element 11 is installed in the lower support 9a of the supporting node 8; weights 14 (figure 1) of the gaming table 1, fixed on the lower surface 3a of the gaming table 1, providing the position of the center of gravity of the gaming table 1 below the contact surface of the upper part 12 of the support element 11 with the recess 10 in the upper support 9, while the recess 10 in the upper the support 9 has the shape of a trihedral prism with roundings 15a (in cross section) and 15b (in longitudinal section) of the upper surface 16 of the recess 10; the supporting element 11 has the shape of a prism in the form of an isosceles triangle in cross section with roundings 17a and 17b in the upper part 12 of the supporting element 11 with radii smaller than the radii of the roundings 15a and 15b of the upper support 9; the angle α (figure 2, 4, 5) between the side surfaces of the upper part 12 of the support element 11 and the recess 10 in the upper support 9 is determined by the formula:

where ƒ _tr is the coefficient of sliding friction of game pieces 4 on the playing field 2.

To improve the manufacturability of the device, the support element 11 has the shape of a trihedral prism (figure 2, 3) or a rectangular prism (figure 4, 5) with roundings 17a and 17b of the upper part 12. Details of the support node 8 require increased manufacturing accuracy and can be made from materials other than the IC and base materials, such as plastics by injection molding or 3D printing on a printer, from metal blanks by machining.

During the game on the proposed device, when imbalances in the forces of gravity of the displaced game pieces 4 occur, the game table 1 rotates and a moment of rolling friction forces of the upper support 9 occurs relative to the surface of the roundings 15a, 15b of the upper part of the supporting element 11. The moment of rolling friction forces in the proposed device is less than the moment of sliding friction forces in a spherical support node according to the prototype RU No. 2719105.

Claims (5)

1. A device for a balanced positional game, consisting of a game table with a game field on the upper surface of the game table with a game field marking for positioning game pieces, with a game table area larger than the playing field area; a base having a lower part in contact with the supporting surface of the balance positional game device and an upper part; a support assembly installed between the base and the gaming table, having an upper support with a recess located in the lower part of the gaming table, a lower support installed on the upper part of the base, and a support element, the upper part of which interacts with the surface of the recess in the upper support, ensuring the mobility of the gaming table relative to the upper part of the support element, and the lower part of the support element is installed in the lower support of the support node; gaming table weights fixed on the lower surface of the gaming table, providing the position of the center of gravity of the gaming table below the contact surface of the upper part of the support element with the recess in the upper support, characterized in that the recess in the upper support has the shape of a prism with roundings of the upper part; the supporting element has the shape of a prism with roundings in the upper part with radii smaller than the radii of roundings in the upper part of the upper support; the angle α between the side surfaces of the upper part of the support element and the recess in the upper support is determined by the formula:

where ƒ _tr is the coefficient of sliding friction of game pieces on the playing field. 2. The device according to claim. 1, characterized in that the support element has the shape of a trihedral prism in the form of an isosceles triangle with roundings in the upper part in contact with the upper part of the prismatic recess in the upper support. 3. The device according to claim. 1, characterized in that the support element has the form of a rectangular prism with roundings in the upper part, in contact with the upper part of the prismatic recess in the upper support.

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