Coin ejector for slot machines
By simplifying the structure of the coin ejection device of the coin acceptor and combining the ejection components on both sides of the ejection channel with torsion springs, the problems of unstable ejection and complex structure are solved, achieving accurate coin ejection and easy maintenance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU RIHE ANIMATION TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing coin ejection devices for coin acceptors suffer from instability in the ejection process and complex structure, resulting in inaccurate coin ejection, high equipment costs, and difficult maintenance.
The system employs a combination of a fixed component, two ejector components, and a pair of torsion springs symmetrically distributed on both sides of the ejection channel. This simplified design consists of a fixed component, two ejector components, and a pair of torsion springs. The accurate ejection of the coin is achieved through the energy storage and reset function of the torsion springs. The system also incorporates bearings and an adjustment mechanism to enhance stability and adaptability.
It achieves stability and repeatability in the coin ejection process, reduces the complexity of the mechanism and the difficulty of maintenance, simplifies the manufacturing and maintenance process, and improves the user experience of the equipment.
Smart Images
Figure CN224553840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coin acceptor technology, and in particular to a coin ejection device for a coin acceptor. Background Technology
[0002] Coin-operated amusement rides are a common entertainment device found in amusement parks, arcades, and other similar venues. When a player starts a game, the machine feeds the game coins from the coin pool through a coin feeding mechanism to a coin ejection device, which then ejects the game coins.
[0003] However, among the many components of a coin-operated machine, the performance of the coin ejection mechanism directly affects the overall user experience. Currently, most coin-operated machines on the market are equipped with coin ejection mechanisms that have some problems that urgently need to be addressed. Among them, instability in the ejection process is one of the most prominent issues. In actual use, coins sometimes fail to eject accurately according to the predetermined trajectory and force, and the ejection distance may be too short, causing the coin to fail to reach the designated position and affecting the subsequent gameplay.
[0004] Besides the unstable ejection, the complex structure is also a major drawback of current coin ejection devices. Many coin ejection devices, in order to achieve so-called "precision ejection," have designed numerous cumbersome mechanical structures and parts. This not only increases the manufacturing cost of the equipment, keeping the price of the coin acceptor high, but also brings great difficulties to technicians during subsequent maintenance and upkeep. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model proposes a coin ejection device for coin acceptors, which can solve the problems of unstable ejection process and complex structure of current coin ejection devices.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] This utility model provides a coin ejection device for a coin acceptor, including a fixing member, an ejection channel and two ejector components. The working ends of the two ejector components are cylindrical and located on the left and right sides of the ejection channel, respectively. A torsion spring is provided between the ejector components and the fixing member. The fixed end of the torsion spring is fixedly connected to the fixing member, and the movable end of the torsion spring is connected to the ejector component. When the coin passes through the ejection channel between the working ends of the two ejector components, the working ends of the two ejector components are pushed outward by the coin and store energy due to the action of the torsion spring. After the coin passes through the working ends of the two ejector components, the torsion spring releases energy and ejects the coin.
[0008] The preferred technical solution of this utility model is that the two ejector components are arranged symmetrically on the left and right.
[0009] The preferred technical solution of this utility model is that a bottom plate and a top plate are fixedly installed on the fixing member, and an ejection channel is formed between the bottom plate and the top plate. The functional end of the ejector is located between the bottom plate and the top plate.
[0010] The preferred technical solution of this utility model is that the functional end of the ejector is a bearing.
[0011] The preferred technical solution of this utility model is that the ejector component includes a first flange bearing, a second flange bearing, a connecting component, and an ejector bearing. The first flange bearing is installed in the fixing component, the first flange bearing and the second flange bearing are connected by a connecting shaft, the second flange bearing is installed at one end of the connecting component, and the ejector bearing is installed at the other end of the connecting component.
[0012] The preferred technical solution of this utility model is that the main body of the torsion spring is sleeved on the connecting shaft.
[0013] The preferred technical solution of this utility model is that the bottom plate and the top plate are respectively provided with limiting grooves, and the ejector bearing is located in the limiting groove.
[0014] A preferred embodiment of this invention further includes an adjustment mechanism for adjusting the initial distance between the working ends of the two ejector components.
[0015] The preferred technical solution of this utility model is that the adjustment mechanism includes an adjustment plate, the adjustment end of the adjustment plate extends through the fixing member to the space between the two connecting members, the adjustment plate and the fixing member are slidably engaged, and when the adjustment plate and the fixing member are slidably engaged, the adjustment end of the adjustment plate adjusts the distance between the working ends of the two ejector members according to the sliding direction.
[0016] The preferred technical solution of this utility model is that the fixing member and the adjusting plate are in the form of an L-shaped plate structure. The fixing member is provided with a number of guide posts, and the adjusting plate is provided with guide grooves that are adapted to the guide posts. The adjusting plate and the fixing member slide together through the structure of the guide grooves and guide posts.
[0017] The beneficial effects of this utility model are:
[0018] This utility model proposes a coin ejection device for coin acceptors. Through the ingenious cooperation of a fixing component, an ejection channel, two ejection components with cylindrical ends located on both sides of the channel, and torsion springs, it avoids the problem of inconsistent ejection caused by single-point springs or pneumatic drives in traditional devices. At the same time, it combines multiple complex components such as slide rails and guide plates into a simple combination of a fixing component, two ejection components, and a pair of torsion springs, which greatly reduces the complexity of the mechanism and the difficulty of assembly. It not only ensures the repeatability and stability of the ejection process, but also significantly simplifies the manufacturing and maintenance process. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A three-dimensional representation of a coin ejection device for a coin acceptor in Embodiment 1. Figure 1 ;
[0021] Figure 2 A three-dimensional representation of a coin ejection device for a coin acceptor in Embodiment 1. Figure 2 ;
[0022] Figure 3 This is a top view of a coin ejection device for a coin acceptor according to Embodiment 1;
[0023] Figure 4 An explosion of a coin ejection device for a coin-operated machine as described in Embodiment 1. Figure 1 ;
[0024] Figure 5 An explosion of a coin ejection device for a coin-operated machine as described in Embodiment 1. Figure 2 ;
[0025] Figure 6 This is a perspective view of the combination of the ejector and the torsion spring on one side of Embodiment 1.
[0026] In the picture:
[0027] 1-Fixed component; 2-Ejection channel; 21-Base plate; 22-Top plate; 23-Support plate; 3-Ejection component; 31-First flange bearing; 32-Second flange bearing; 33-Connecting component; 34-Ejection bearing; 35-Connecting shaft; 4-Torsion spring; 41-Fixed end; 42-Moving end; 43-Main body; 5-Limiting groove; 61-Adjusting plate; 62-Adjusting end; 63-Guide column; 64-Guide groove. Detailed Implementation
[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] This embodiment provides a coin ejection device for a coin acceptor, such as... Figure 1-6As shown in the figure, some connecting bolt components are omitted. The components include a fixing member 1, which has an ejection channel 2 and two ejector members 3. The working ends of the two ejector members 3 are cylindrical and are located on the left and right sides of the ejection channel 2, respectively. A torsion spring 4 is provided between the ejector members 3 and the fixing member 1. The fixed end 41 of the torsion spring 4 is fixedly connected to the fixing member 1, and the movable end 42 of the torsion spring 4 is connected to the ejector members 3. When the coin passes through the ejection channel 2 between the working ends of the two ejector members 3, the working ends of the two ejector members 3 are pushed outward by the coin and store energy due to the action of the torsion spring 4. After the coin passes through the working ends of the two ejector members 3, the torsion spring 4 releases energy and ejects the coin. This coin ejection device achieves a simple structure and stable ejection process through the ingenious combination of a fixing component, an ejection channel, two ejector components with cylindrical ends located on both sides of the channel, and torsion springs. The main body of the device is an integrated fixing component with a through ejection channel. Two ejector components with cylindrical working ends are symmetrically installed on both sides of the channel. The ejector components are connected to the fixing component via torsion springs. The fixed end of the torsion spring is fixed to the fixing component, and the movable end is connected to the ejector component. This not only positions the ejector component at the channel entrance but also provides a pre-set reset force. When the coin is fed into the ejection channel and acts on the cylindrical end faces of the ejector components on both sides... The coin pushes the ejector's active end to rotate outward and open, during which the torsion spring is twisted and stores energy. After the coin has completely passed the active ends of the ejectors on both sides, the torsion spring quickly returns to its original position and releases the stored energy. The reverse thrust of the ejector end face accurately and quickly ejects the coin, thus avoiding the inconsistent ejection problem caused by single-point springs or pneumatic drives in traditional devices. At the same time, it combines multiple slide rails, guide plates and other complex components into a simple combination of a fixed component, two ejectors and a pair of torsion springs, which greatly reduces the complexity of the mechanism and the difficulty of assembly. It not only ensures the repeatability and stability of the ejection process, but also significantly simplifies the manufacturing and maintenance process.
[0030] Preferably, the two ejector components 3 are symmetrically distributed from left to right. This design, by symmetrically arranging the two ejector components along the central axis of the ejection channel, ensures that the forces acting on the ejector components on both sides are balanced and consistent when the coin passes through. When the coin enters the center of the channel, it acts simultaneously on the same position at the acting ends of the two cylindrical ejector components, ensuring that the torsion spring is twisted synchronously and with equal amplitude, resulting in uniform energy storage and symmetrical thrust on the coin during reset and energy release. This eliminates the problems of skewness, jamming, or inconsistent throwing caused by traditional single-sided ejection or asymmetrical arrangements. The symmetrical structure not only improves the repeatability of the ejection but also enhances the mechanism's resistance to off-center loads, simplifying subsequent debugging and maintenance.
[0031] Preferably, a base plate 21 and a top plate 22 are fixedly mounted on the fixing member 1, forming an ejection channel 2 between the base plate 21 and the top plate 22. The active end of the ejector 3 is located between the base plate 21 and the top plate 22. Specifically, in order to form the ejection channel 2 between the base plate 21 and the top plate 22, support plates 23 are provided on the left and right sides between the base plate 21 and the top plate 22. The top plate 22, support plates 23, and base plate 21 are sequentially fixed to the fixing member by threaded connection. This solution defines the geometry of the ejection channel through the integrated upper and lower plate structure and positions the active end of the ejector in the clamping area of the upper and lower plates: the base plate and the top plate are rigidly connected to the main body of the fixing member by studs, and the space between them is the movement channel of the coin.
[0032] Preferably, the actuating end of the ejector 3 is a bearing. This preferred embodiment innovatively replaces the conventional metal cylinder with a rolling bearing at the cylindrical actuating end of the ejector. Utilizing the low friction and high wear resistance of the bearing, the contact between the coin and the ejector is smoother, the wear is more uniform, and the response is more sensitive. Under the thrust of the coin, the bearing end face generates minute rolling and pushes outwards, reducing sliding friction and stagnation of the coin, thus improving the reliability of the ejection process.
[0033] Preferably, the ejector component 3 includes a first flange bearing 31, a second flange bearing 32, a connecting member 33, and an ejector bearing 34. The first flange bearing 31 is installed in the fixing member 1. The first flange bearing 31 and the second flange bearing 32 are connected by a connecting shaft 35. The second flange bearing 32 is installed at one end of the connecting member 33, and the ejector bearing 34 is installed at the other end of the connecting member 33. Conventional bearings can be used for the ejector bearings. This preferred embodiment separates the rotation fulcrum and ejector end face of the ejector component through segmented load-bearing and support, which improves structural adjustability and reduces stress concentration: the first flange bearing is fixed inside the fixing member, providing rigid support for the connecting shaft; the other end of the connecting shaft is hinged to the adjustable connecting member through the second flange bearing; the other end of the connecting member is equipped with an ejector bearing, serving as the rolling end face that contacts the coin.
[0034] Preferably, the main body 43 of the torsion spring 4 is sleeved on the connecting shaft 35. In this preferred embodiment, the torsion spring and the connecting shaft are arranged coaxially, and the connecting shaft is used as the carrier of the torsion spring to fix its position so that it does not deviate, thereby stably realizing the energy storage and transmission efficiency. The torsion spring can efficiently store energy by twisting when the projectile deflects, and the energy is transferred to the projectile without loss through the connecting shaft during the reset.
[0035] Preferably, the bottom plate 21 and the top plate 22 are each provided with a limiting groove 5, and the ejector bearing 34 is located in the limiting groove 5. This preferred embodiment uses the upper and lower limiting grooves to position the ejector bearing in both directions, which not only prevents radial movement at the bearing end, but also limits the swing amplitude of the connecting parts, thereby improving the overall stability and repeatability of the structure: the bottom plate and the top plate are machined with matching arc-shaped grooves according to the outer diameter of the ejector bearing. During assembly, the bearing is first fitted into the groove of the bottom plate, then the top plate is covered and aligned, and finally the plates are locked.
[0036] Preferably, it also includes an adjustment mechanism for adjusting the initial distance between the working ends of the two ejector components 3. While maintaining the stability and reliability of the original ejection structure, an adjustable component is introduced, allowing users to flexibly adjust the pre-tension distance between the two ejector ends according to the coin's diameter or material differences, making it compatible with coins of different specifications and tolerances, and improving versatility and adaptability: by changing the initial position of the ejector components through the adjustment mechanism, the pre-torsion degree of the torsion spring and the ejection force when the coin enters can be controlled.
[0037] Preferably, the adjustment mechanism includes an adjustment plate 61, with an adjustment end 62 on the adjustment plate 61 extending through the fixing member 1 between the two connecting members 33. The adjustment plate 61 and the fixing member 1 are slidably engaged. When the adjustment plate 61 and the fixing member 1 slide up and down, the adjustment end 62 of the adjustment plate 61 adjusts the distance between the working ends of the two ejector members 3. By using a sliding engagement and guide limiting method, the adjustment plate and the fixing member are tightly matched. By moving the end of the adjustment plate up and down, a pushing or pulling force is applied to the connecting member, thereby achieving fine-tuning and continuous adjustment of the ejector position. The bottom of the adjustment plate is provided with a guide groove that matches the fixing member and is guided by a guide post. The adjustment end is cylindrical, with its top end inserted into the side opening of the connecting member. A preload is applied by a leaf spring or elastic member to ensure that the friction between the adjustment plate and the connecting member is constant when the adjustment plate moves up and down. Specifically, the fixing component 1 and the adjusting plate 61 have an L-shaped plate structure. The fixing component 1 is provided with several guide posts 63, and the adjusting plate 61 is provided with guide grooves 64 that are adapted to the guide posts 63. The adjusting plate 61 and the fixing component 1 are slidably engaged through the structure of the guide grooves 64 and the guide posts 63. The structural layout uniformly adopts an L-shaped plate design, which allows the adjusting plate and the fixing component to be assembled in the same plane. The guide posts and guide grooves are used to limit the position of the adjusting plate. When the required adjustment position is reached, the adjusting plate and the fixing component can be locked together by means of studs or other methods.
[0038] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.
Claims
1. A coin ejection device for a coin-operated machine, characterized in that: Includes a fixing member (1), the fixing member (1) is provided with an ejection channel (2) and two ejection members (3), the working ends of the two ejection members (3) are cylindrical and are located on the left and right sides of the ejection channel (2) respectively; A torsion spring (4) is provided between the ejector (3) and the fixing member (1). The fixed end (41) of the torsion spring (4) is fixedly connected to the fixing member (1), and the movable end (42) of the torsion spring (4) is connected to the ejector (3). When the delivered coin passes through the ejection channel (2) between the working ends of the two ejection components (3), the working ends of the ejection components (3) on both sides are pushed outward by the coin and store energy due to the action of the torsion spring (4). After the coin passes through the working ends of the ejection components (3) on both sides, the coin is ejected due to the reset energy of the torsion spring (4).
2. The coin ejection device for a coin-operated machine according to claim 1, characterized in that: The two ejector components (3) are arranged symmetrically on the left and right.
3. The coin ejection device for a coin-operated machine according to claim 1, characterized in that: A base plate (21) and a top plate (22) are fixedly installed on the fixing member (1), and the ejection channel (2) is formed between the base plate (21) and the top plate (22). The working end of the ejector (3) is located between the base plate (21) and the top plate (22).
4. The coin ejection device for a coin-operated machine according to claim 1, characterized in that: The functional end of the ejector (3) is a bearing.
5. The coin ejection device for a coin-operated machine according to claim 3, characterized in that: The ejector (3) includes a first flange bearing (31), a second flange bearing (32), a connector (33), and an ejector bearing (34). The first flange bearing (31) is installed in the fixing member (1), the first flange bearing (31) and the second flange bearing (32) are connected by a connecting shaft (35), the second flange bearing (32) is installed at one end of the connecting member (33), and the ejector bearing (34) is installed at the other end of the connecting member (33).
6. The coin ejection device for a coin-operated machine according to claim 5, characterized in that: The main body (43) of the torsion spring (4) is sleeved on the connecting shaft (35).
7. The coin ejection device for a coin-operated machine according to claim 5, characterized in that: The bottom plate (21) and the top plate (22) are respectively provided with limiting grooves (5), and the ejector bearing (34) is located in the limiting grooves (5).
8. The coin ejection device for a coin-operated machine according to claim 5, characterized in that: It also includes an adjustment mechanism for adjusting the initial distance between the working ends of the two ejector components (3).
9. The coin ejection device for a coin-operated machine according to claim 8, characterized in that: The adjustment mechanism includes an adjustment plate (61), an adjustment end (62) on the adjustment plate (61) extending through the fixing member (1) to between two connecting members (33), and the adjustment plate (61) and the fixing member (1) are in sliding fit; When the adjusting plate (61) and the fixing member (1) are in sliding engagement, the adjusting end (62) of the adjusting plate (61) adjusts the distance between the working ends of the two ejector members (3) in the sliding direction.
10. The coin ejection device for a coin-operated machine according to claim 9, characterized in that: The fixing member (1) and the adjusting plate (61) are in the form of an L-shaped plate structure. The fixing member (1) is provided with a plurality of guide posts (63), and the adjusting plate (61) is provided with guide grooves (64) that are adapted to the guide posts (63). The adjusting plate (61) and the fixing member (1) are slidably fitted by the guide groove (64) and the guide post (63).