Coin ejection device for slot machine
By combining an integrated fastener and a torsion spring, the problem of unstable ejection and complex structure of the coin ejection device in coin acceptors is solved, achieving smooth coin ejection, simplified maintenance, and convenient coin ejection effect.
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
- 2026-05-15
AI Technical Summary
Existing coin-operated machines have problems with unstable ejection processes and complex structures, which prevent coins from being ejected accurately, affecting the game process and increasing equipment costs and maintenance difficulty.
The design adopts an integrated fixing component, combining torsion springs, ejector components, and auxiliary components to form a simple ejection mechanism. Utilizing the energy storage and reset mechanism of the torsion springs, the coins are smoothly ejected through the ejection channel, simplifying the structure and improving stability and reliability.
This method achieves smooth and symmetrical coin ejection, reduces the number of parts and assembly difficulty, improves the reliability and ease of maintenance of the device, and ensures that the coin accurately reaches the designated position.
Smart Images

Figure CN224248164U_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 coin acceptors. 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, an ejector, and an auxiliary member. The active end of the ejector is cylindrical and located on one side of the ejection channel. The auxiliary member is cylindrical and located on the opposite side of the active end of the ejector. A torsion spring is provided between the ejector 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. When a coin passes through the ejection channel between the active end of the ejector and the auxiliary member, the active end of the ejector is opened outward by the coin and stores energy due to the action of the torsion spring. After the coin passes through the active end of the ejector and the auxiliary member, the torsion spring releases energy and ejects the coin.
[0008] The preferred technical solution of this utility model is that the ejector component and the auxiliary component are arranged symmetrically on the left and right sides.
[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, and the auxiliary member 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 component is a bearing component, and the auxiliary component is a bearing component.
[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] The preferred technical solution of this utility model is that it further includes an adjusting plate, which is slidably engaged with the fixing member. When the adjusting plate and the fixing member are slidably engaged, the adjusting end of the adjusting plate adjusts the output force of the torsion spring according to the sliding direction.
[0015] The preferred technical solution of this utility model is that the lower part of the fixing member and the adjusting plate is 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 are slidably engaged through the structure of the guide grooves and guide posts. The adjusting end is a hook, and one side of the hook acts on the fixed end of the torsion spring, thereby adjusting the output force of the torsion spring.
[0016] The beneficial effects of this utility model are:
[0017] This utility model proposes a coin ejection device for coin-operated machines. With an integrated fixing component as the core, it integrates a through ejection channel, a single-sided cylindrical ejector component, and a opposite-sided cylindrical auxiliary component into a simple ejection mechanism. It ejects the coin with a stable and symmetrical thrust, thereby avoiding the inconsistent ejection problem caused by single-point springs or pneumatic drives in traditional devices. Relying only on the simple combination of fixing components, torsion springs, ejector components, and auxiliary components, it not only significantly reduces the number of parts and assembly difficulty, but also ensures the repeatability and stability of the ejection process and the flat ejection of the coin, greatly improving the reliability and ease of maintenance of the device. Attached Figure Description
[0018] 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.
[0019] Figure 1 This is a three-dimensional representation of a coin ejection device for a coin-accepting machine in Embodiment 1. Figure 1 ;
[0020] Figure 2 This is a three-dimensional representation of a coin ejection device for a coin-accepting machine in Embodiment 1. Figure 2 ;
[0021] Figure 3 This is a top view of a coin ejection device for a coin acceptor in Embodiment 1;
[0022] Figure 4 An explosion of a coin ejection device for a coin-accepting machine as described in Embodiment 1. Figure 1 ;
[0023] Figure 5 An explosion of a coin ejection device for a coin-accepting machine as described in Embodiment 1. Figure 2 ;
[0024] Figure 6 This is a perspective view of one side of the ejector component in Embodiment 1.
[0025] In the picture:
[0026] 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-Auxiliary component; 5-Torsion spring; 51-Fixed end; 52-Modible end; 53-Main body; 6-Limiting groove; 71-Adjusting plate; 72-Adjusting end; 73-Guide column; 74-Guide groove. Detailed Implementation
[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0028] This embodiment provides a coin ejection device for a coin-operated machine, such as... Figure 1-6As shown in the figure, some connecting bolt components are omitted. The fastener 1 is equipped with an ejection channel 2, an ejector 3, and an auxiliary component 4. The active end of the ejector 3 is cylindrical and located on one side of the ejection channel 2. The auxiliary component 4 is cylindrical and located on the opposite side of the active end of the ejector 3. That is, the active end of the ejector 3 and the auxiliary component 4 are located on the left and right sides of the ejection channel 2, respectively. A torsion spring 5 is provided between the ejector 3 and the fastener 1. The fixed end 51 of the torsion spring 5 is fixedly connected to the fastener 1, and the movable end 52 of the torsion spring 5 is connected to the ejector 3. When the coin passes through the ejection channel 2 between the active end of the ejector 3 and the auxiliary component 4, the active end of the ejector 3 is opened outward by the coin and stores energy due to the action of the torsion spring 5. After the coin passes through the active end of the ejector and the auxiliary component, the torsion spring 5 releases energy and ejects the coin. The coin ejection device in this embodiment uses an integrated fixing component as its core, cleverly combining a through ejection channel, a single-sided cylindrical ejector, and a opposite-sided cylindrical auxiliary component into a simple mechanism: the fixing component can be injection molded or milled to form a sturdy frame, the active end of the ejector is cylindrical and fitted onto a connecting shaft, and its other side is connected to the movable end of a torsion spring, the fixed end of the torsion spring is fixed to the fixing component, and the auxiliary component is also cylindrical, installed on the fixing component and aligned with the active end of the ejector, providing contact support for the coin and preventing the ejector from jumping out of place when there is no coin; when the coin slides into the channel and squeezes between the active end of the ejector and the auxiliary component, the active end of the ejector moves outward under the push of the coin, and the torsion spring is synchronously twisted to absorb energy, while the auxiliary component always maintains close contact with the coin to prevent the coin from tilting or getting stuck; when the coin passes over the ejector and the auxiliary component, the torsion spring quickly resets and releases energy, and transmits it to the active end face of the ejector, ejecting the coin with a smooth and symmetrical thrust. This innovative structure eliminates complex components such as traditional multi-link rods, guide rails, and cylinders. It relies solely on a simple combination of fixing parts, torsion springs, ejection parts, and auxiliary parts, which significantly reduces the number of parts and assembly difficulty, while ensuring the repeatability and stability of the ejection process and the flat ejection of coins, thus greatly improving the reliability and ease of maintenance of the device.
[0029] Preferably, the ejector component 3 and the auxiliary component 4 are arranged symmetrically from left to right. A further preferred embodiment of the symmetrical arrangement of the ejector component and the auxiliary component effectively solves the problem of uneven force distribution during ejection, thereby significantly improving the stability of coin dispensing.
[0030] 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, and the auxiliary member 4 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 ends of the auxiliary member and 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.
[0031] Preferably, the actuating end of the ejector 3 is a bearing, and the auxiliary component 4 is a bearing. This preferred embodiment innovatively replaces the conventional metal cylinders with rolling bearings at the cylindrical actuating ends of the auxiliary component and the ejector. Utilizing the low friction and high wear resistance of the bearings, the contact with the coin 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 coin sliding friction and stalling, thus improving the reliability of the ejection process.
[0032] 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. In terms of implementation, the connecting part is designed as a high-strength steel part with a limiting shoulder. One end is perforated to fit a second flange bearing. The inner ring mates with the connecting shaft, and the outer ring is fixed to the connecting part. The ejector bearing is fixed to the end of the connecting part by threads or snap rings. By combining multiple bearing layers to share the radial and axial loads, the concentricity and smooth rotation of the ejector component are ensured under repeated impacts, thereby improving the durability and maintainability of the entire ejection system.
[0033] Preferably, the main body 53 of the torsion spring 5 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 the position of the torsion spring so that it does not deviate, thereby stably realizing the energy storage and transmission efficiency. The torsion spring can efficiently store energy by torsion when the projectile deflects, and the energy is transferred to the projectile without loss through the connecting shaft during the reset.
[0034] Preferably, the bottom plate 21 and the top plate 22 are each provided with a limiting groove 6, and the ejector bearing 34 is located in the limiting groove 6. 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.
[0035] Preferably, the device also includes an adjusting plate 71, which slides in conjunction with the fixing member 1. When the adjusting plate 71 and the fixing member 1 slide in conjunction, the adjusting end 72 of the adjusting plate 71 adjusts the output force of the torsion spring 5 according to the sliding direction. Specifically, the lower part of the fixing member 1 and the adjusting plate 71 has an L-shaped plate structure. The fixing member 1 is provided with several guide posts 73, and the adjusting plate 71 is provided with guide grooves 74 that are adapted to the guide posts 73. The adjusting plate 71 and the fixing member 1 slide in conjunction left and right through the structure of the guide grooves 74 and the guide posts 73. The adjusting end 72 is a hook, and one side of the hook acts on the fixed end 51 of the torsion spring 5, thereby adjusting the output force of the torsion spring 5. The simple slider-hook structure realizes the continuous adjustment of the preload of the torsion spring, so that the ejection force can be flexibly matched according to the diameter tolerance or material difference of the coin. The adjusting end is designed as a pointed hook, which can be hung at the fixed end of the torsion spring; sliding the adjusting plate left and right can make the hook push the torsion spring to different positions, thereby adjusting the output force of the torsion spring, changing the preload angle and output torque. This structure is easy to adjust and requires no disassembly of any parts, allowing users to quickly calibrate the force on-site at the coin-operated machine.
[0036] 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), an ejection member (3) and an auxiliary member (4), the working end of the ejection member (3) is cylindrical and located on one of the left and right sides of the ejection channel (2), and the auxiliary member (4) is cylindrical and located on the opposite side of the working end of the ejection member (3); A torsion spring (5) is provided between the ejector (3) and the fixing member (1). The fixed end (51) of the torsion spring (5) is fixedly connected to the fixing member (1), and the movable end (52) of the torsion spring (5) is connected to the ejector (3). When the delivered coin passes through the ejection channel (2) between the active end of the ejector (3) and the auxiliary component (4), the active end of the ejector (3) is opened outward by the coin and stores energy due to the action of the torsion spring (5). After the coin passes through the active end of the ejector and the auxiliary component, the coin is ejected due to the reset energy of the torsion spring (5).
2. The coin ejection device for a coin-operated machine according to claim 1, characterized in that: The ejector (3) and auxiliary components (4) are arranged symmetrically on the left and right sides.
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 mounted on the fixing member (1). The ejection channel (2) is formed 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). The auxiliary member (4) 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 active end of the ejector (3) is a bearing, and the auxiliary component (4) 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 (53) of the torsion spring (5) 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 (6), and the ejector bearing (34) is located in the limiting grooves (6).
8. The coin ejection device for a coin-operated machine according to claim 1, characterized in that: It also includes an adjusting plate (71), which is slidably engaged with the fixing member (1); When the adjusting plate (71) and the fixing member (1) are in sliding engagement, the adjusting end (72) of the adjusting plate (71) adjusts the output force of the torsion spring (5) according to the sliding direction.
9. The coin ejection device for a coin-operated machine according to claim 8, characterized in that: The lower part of the fixing member (1) and the adjusting plate (71) is an L-shaped plate structure. The fixing member (1) is provided with a plurality of guide posts (73). The adjusting plate (71) is provided with guide grooves (74) that are adapted to the guide posts (73). The adjusting plate (71) and the fixing member (1) are slidably engaged through the structure of the guide grooves (74) and the guide posts (73). The adjustment end (72) is a hook, and one side of the hook acts on the fixed end (51) of the torsion spring (5) to adjust the output force of the torsion spring (5).