EP-4736968-A1 - LOTTERY DEVICE AND GAME DEVICE

EP4736968A1EP 4736968 A1EP4736968 A1EP 4736968A1EP-4736968-A1

Abstract

Provided are a lottery device and a game machine capable of improving a player's expectation for a lottery and amusement in a lottery game by changing the movement of a lottery medium on a rotary disk and extending a rolling time of the lottery medium on the rotary disk by using a simple configuration. The lottery device and the game machine include: a lottery medium having a lottery surface showing a lottery content; a rotary disk on which the lottery medium is placed; and a rotation drive unit configured rotate the rotary disk to cause the lottery medium placed on the rotary disk to roll on the rotary disk. The rotary disk has a first surface portion and a second surface portion on which the lottery medium can roll and stop after the rotation of the rotary disk is stopped. When the rotary disk is viewed in a plan view, the first surface portion has an annular shape, the second surface portion is a part positioned on the inner peripheral side of the first surface portion. The first surface portion and the second surface portion have different configurations so as to make the force applied to the rolling lottery medium by the first surface portion different from the force applied to the rolling lottery medium by the second surface portion.

Inventors

HOSHINO, TAKAYUKI
DOI, SATOSHI

Assignees

Sega Corporation

Dates

Publication Date: 20260506
Application Date: 20240222

Claims (10)

A lottery device comprising: a lottery medium having a lottery surface on which lottery contents are indicated; a rotary disk on which the lottery medium is placed; and a rotation drive unit configured to rotate the rotary disk to cause the lottery medium placed on the rotary disk to roll on the rotary disk, wherein the rotary disk has a first surface portion and a second surface portion where the lottery medium can roll and stop after the rotary disk stops rotating, the first surface portion, when the rotary disk is viewed from above, has an annular shape, and the second surface portion is a circular portion located on the inner peripheral side of the first surface portion, and the first surface portion and the second surface portion have different configurations such that the force applied by the first surface portion to the lottery medium while it is rolling is different from the force applied by the second surface portion to the lottery medium while it is rolling.
The lottery device according to claim 1, wherein the force applied by the first surface portion to the lottery medium while it is rolling is greater than the force applied by the second surface portion to the lottery medium while it is rolling.
The lottery device according to claim 2, wherein the first surface portion has at least one of the following characteristics: including a recess; including a protrusion; and being made of a material with high friction.
The lottery device according to claim 3, wherein the first surface portion has an inverted truncated cone shape.
The lottery device according to claim 4, wherein the second surface portion has: an annular connection portion connected to the first surface portion; and a circular center portion located on the inner circumferential side of the connection portion, wherein the connection portion has an inverted truncated cone shape, and the center portion has a flat, spherical or conical shape.
The lottery device according to claim 5, wherein the rotary disk further has a protruding part provided at the center of the rotary disk.
The lottery device according to claim 6, wherein, when viewed from a side, the inclination of the connecting portion is the same as or smaller than the inclination of the first surface portion.
The lottery device according to claim 1, wherein the lottery medium has: a plurality of lottery faces and a plurality of curved faces disposed around the circumference of each of the plurality of lottery faces, and wherein the plurality of curved faces are interconnected and uniformly distributed on the surface of a single sphere.
The lottery device according to claim 8, wherein each of the lottery surfaces is a flat surface or a spherical surface having a curvature smaller than that of the single sphere.
A game machine comprising: a game unit for playing at least a first game and a second game; the lottery device according to any one of claims 1 to 9, for playing lottery games related to the first game and the second game; and a controller for controlling the game unit and the lottery device so as to start the first game using the game unit based on a player's operation and obtain the game result of the first game, start a lottery game using the lottery device based on the game result and obtain the lottery result, and start the second game using the game unit based on the lottery result.

Description

Technical Field The present invention relates to a lottery device and a game machine. Background Art Conventionally, a lottery device is known in which a lottery is performed by rolling a lottery medium such as a ball on a surface of an inverted truncated cone (see, for example, Patent Document 1). Prior Art Documents Patent Documents Patent Document 1: Japanese Patent Application Laid-Open No. 2004-248690 Summary of the Invention Problem to be Solved By the Invention The conventional lottery device disclosed in Patent Document 1 ejects the lottery medium at a predetermined angle relative to the peripheral edge of a fixed, reverse-truncated cone-shaped plate surface such that the lottery medium rolls along the surface during the lottery process. Such conventional lottery devices are not originally intended to rotate an inverted truncated cone-shaped board, and therefore do not take into account the problem of the centrifugal force exerted on the lottery media by the rotation of the board pressing the lottery media against the peripheral edge of the board, preventing the lottery media from rolling. Furthermore, if the lottery medium adheres to the surface of the board, the lottery medium will no longer roll on the surface of the board, which will shorten the time the lottery medium rolls on the surface during the lottery process, which may affect the player's expectation for the lottery and their amusement in the lottery game. The present invention aims to provide a lottery device and a game machine that can increase players' sense of expectation for the lottery and the amusement in the lottery game by using a simple configuration to vary the movement of the lottery medium on the rotary disk and extend the time the lottery medium rolls on the rotary disk. Means to Solve the Problem In order to achieve the above-mentioned object, the lottery device according to the present invention comprises a lottery medium having a lottery surface on which lottery contents for the lottery are indicated, a rotary disk on which the lottery medium is placed, and a rotation drive unit configured to rotate the rotary disk to cause the lottery medium placed on the rotary disk to roll on the rotary disk, the rotary disk having a first surface portion and a second surface portion on which the lottery medium can roll and stop after the rotation of the rotary disk stops, and, when the rotary disk is viewed from above, the first surface portion is annular and the second surface portion is a portion located on the inner side of the first surface portion, and the first surface portion and the second surface portion have different configurations such that the force applied by the first surface portion to the lottery medium while it is rolling is different from the force applied by the second surface portion to the lottery medium while it is rolling. By adopting such a configuration, it is possible, with a simple configuration, to vary the movement of the lottery medium on the rotary disk and extend the time the lottery medium rolls on the rotary disk, thereby increasing the players' expectation for the lottery and the amusement in the lottery game. In the lottery device according to the present invention, the force applied by the first surface portion to the lottery medium while it is rolling may be greater than the force applied by the second surface portion to the lottery medium while it is rolling. By adopting such a configuration, when the first surface portion and the second surface portion are rotating, the rolling time of the lottery medium on the first surface portion can be made longer than the rolling time on the second surface portion. In the lottery device according to the present invention, the first surface portion may have at least one of the following characteristics: including a recess; including a protrusion; and being made of a material with high friction. By adopting such a configuration, the frictional force that the first surface portion applies on the lottery medium can be improved compared to a surface portion that does not have any concave or convex portions or a surface portion that is made of a material with low friction. In the lottery device according to the present invention, the first surface portion may have an inverted truncated cone shape. By adopting such a configuration, the lottery medium can roll inward toward the inside of the first surface portion under its own weight using a simple structure. In the lottery device according to the present invention, the second surface portion may have a annular-shaped connection portion connected to the first surface portion and a circular center portion located on the inner periphery of the connection portion, the connection portion may have an inverted truncated cone shape, and the center portion may have any one of the following shapes: a flat surface; a spherical surface; and a conical surface. By adopting such a configuration, it is possible to easily gather