Prize acquisition device and prize acquisition game device

Abstract

A prize acquisition device and a prize acquisition game device are provided that enable the device for grasping a prize to be made smaller. [Solution] The gripping arm 203 grips a prize. The arm mounting base 203b pivotally supports the gripping arm 203 so that it can swing up and down. The first actuated part 203d and the second actuated part 203e are provided at the base of the gripping arm 203. The actuating plate 226e acts on the first actuated part 203d and the second actuated part 203e. The motor 221 actuates the actuating plate 226e. The first actuated part 203d and the second actuated part 203e are arranged spaced apart from each other in the vertical direction. The actuating plate 226e is interposed between the first actuated part 203d and the second actuated part 203e, and is displaceable in the vertical direction by the drive of the motor 221. The actuating plate 226e is moved upward to act on the first actuated part 203d, thereby applying a gripping force to the gripping arm 203.

Description

[Technical field]

[0001] The present invention relates to a prize acquisition device and a prize acquisition game device. [Background technology]

[0002] A prize-capturing game device, such as a crane game machine, is used by placing a large number of prizes in a play field formed inside a housing. A player can move a prize-capturing device having a gripping arm within the play field by using an operating means such as a lever or button. After moving the prize-capturing device to the position where a desired prize is placed, the player can grab the prize with the gripping arm and lift it up to the prize outlet in that state to acquire the prize.

[0003] The prize capturing device used in such a prize capturing game device is configured to capture a prize by opening and closing a gripping arm using a driving source such as a motor or an electromagnetic coil (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2006-192029 A Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, as prize acquisition game devices have become smaller, there has been a demand for smaller prize-grabbing devices. In order to meet this demand, efforts have been made to make the gripping arm more compact.

[0006] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a prize acquisition device and a prize acquisition game device that make it possible to miniaturize the device for holding the prizes. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a prize acquisition device for acquiring a prize used in a prize acquisition game device, comprising: An arm for grasping a prize; a pivotal support portion that pivotally supports the arm so as to be swingable in the vertical direction; an actuated portion provided at a base portion of the arm; an actuating portion for acting on the actuated portion; A driving means for operating the operating unit, The actuated portion includes a first actuated portion and a second actuated portion, the first actuated portion and the second actuated portion being vertically spaced apart from each other, the actuating portion is interposed between the first actuated portion and the second actuated portion, and is displaceable in a vertical direction by being driven by the driving means; The actuating portion is moved downward to act on the second actuated portion, thereby swinging the tip side of the arm upward to open the arm, The actuating part is moved upward to act on the first actuated part, thereby applying a gripping force to the arm. the law of nature, The driving means includes a rotary motor, A rotating cam that is rotated by the driving of the rotary motor; a support portion that is provided at a position eccentric to a rotation shaft of the rotating cam and displaces together with the rotating cam; A guide portion extending in the vertical direction to guide the operating portion in the vertical direction; a swinging portion that is displaced together with the operating portion and swings about a support axis in the extending direction of the guide portion; an engagement means for engaging the support portion with the swing portion; When the rotary cam is rotated by the drive of the rotary motor and the support portion is displaced, the swinging portion engaged with the support portion by the engaging means swings and the operating portion is displaced along the extending direction of the guide portion. .

[0009] Claim 2 The invention described in claim 1 In the prize acquisition device described in a biasing means for applying a biasing force to the rotating cam in accordance with an amount of rotation of the rotary motor, The gripping force of the arm can be changed by changing the biasing force of the biasing means.

[0010] Claim 3 The invention described in claim 2 In the prize acquisition device described in The biasing means is characterized by including a helical spring.

[0011] Claim 4 The invention described in is a prize acquisition game device, Claims 1 to 3 The present invention is characterized in that it is equipped with a prize acquisition device described in any one of the above. Effect of the Invention

[0012] According to the present invention, it is possible to provide a prize acquisition device and a prize acquisition game device that make it possible to miniaturize the device for grasping the prize. [Brief description of the drawings]

[0013] [Figure 1] 1 is a perspective view showing the appearance of a crane game machine according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a front view showing the appearance of the gripping device. [Diagram 3] FIG. 2A is a perspective view of the gripping device as viewed from above, and FIG. 2B is a perspective view of the gripping device as viewed from below. [Figure 4] FIG. 2A is a right side view of the gripping device with the upper and lower covers omitted, and FIG. 2B is a perspective view of the gripping device from above with the upper and lower covers omitted. [Diagram 5] FIG. 2 is an exploded perspective view illustrating a configuration of a gripping device. [Figure 6] FIG. 2A is an exploded perspective view of the sliding device as viewed from the rear side, and FIG. 2B is an exploded perspective view of the sliding device as viewed from the front side. [Figure 7] 10A and 10B are diagrams illustrating an internal configuration of the gripping device when the gripping arms are in an open state. [Figure 8]11A and 11B are diagrams illustrating the internal configuration of the gripping device when the gripping arms are in a closed state and no gripping force is being applied. [Figure 9] 13A and 13B are diagrams illustrating the internal configuration of the gripping device when the gripping arms are in a closed state and a weak gripping force is being applied. [Figure 10] 13A and 13B are diagrams illustrating the internal configuration of the gripping device when the gripping arms are in a closed state and a gripping force (strong) is being applied. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, a prize acquisition game device (e.g., a crane game machine) according to an embodiment of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples. In the following description, parts having the same functions and configurations are given the same reference numerals and their description will be omitted.

[0015] First, the overall configuration of a crane game machine 100 as an example of a prize acquisition game device that can be applied to the present invention will be described with reference to Fig. 1. In the description of Fig. 1, left and right, front and rear, and up and down refer to left and right, front and rear, and up and down based on the state in which a player of the crane game machine 100 sees it from the front side.

[0016] The crane game machine 100 is formed, for example, in a vertically long rectangular parallelepiped shape, and an appropriate number of casters C are attached to the bottom surface. Therefore, the crane game machine 100 can be easily transported by pushing it by staff at an amusement facility such as a game center.

[0017] The crane game machine 100 includes a box-shaped base 1, a play field 2 formed above the base 1, and a ceiling portion 3 covering the play field 2 from above.

[0018] The base 1 houses, for example, a control board having a control unit that performs overall control of the crane game machine 100, and the inside can be accessed by opening an opening / closing door 1a provided on the right side of the front of the base 1. In addition, a money collection door 1b is provided at the bottom center of the front of the base 1 so as to be able to be opened and closed, for collecting coins and coins accepted by coin selectors 84a and 84b (described later).

[0019] The play field 2 has a bottom 2a on which many prizes P are placed, and an internal space is formed by a front plate 2b, a left side plate 2c, a right side plate 2d, a back plate 2e, and the above-mentioned ceiling part 3. The front plate 2b, the left side plate 2c, and the right side plate 2d are made of plate-like members made of transparent glass or resin, so that the internal space can be seen. The front plate 2b is made of, for example, a sliding door, and the inside of the play field 2 can be accessed by opening the sliding door.

[0020] A prize outlet 4 with a square opening is provided at the left front corner of the bottom 2a of the play field 2, and the prize P can be discharged downward. The prize P discharged from the prize outlet 4 falls to the prize removal chamber 6, and the prize P in the prize removal chamber 6 can be removed by opening a door body 7 provided on the left side of the front of the base 1. Here, the door body 7 is made of a plate-like member made of transparent glass or resin, and the inside can be seen through the door body 7. In addition, a partition plate 5 is erected on the bottom 2a so as to surround the right end and rear end of the prize outlet 4, and prevents the prize P placed or piled up on the bottom 2a from falling from the prize outlet 4.

[0021] Above the play field 2, a gripping device 200 functioning as a prize capturing device is provided, and is suspended by a fixed rod 200a and a telescopic rod 200b. The gripping device 200 may be suspended by a wire or the like. Although not shown, two longitudinal rails are provided in parallel near the left and right ends of the ceiling 3, extending in the front-rear direction, and one transverse rail is installed on the two longitudinal rails. The transverse rails are configured to be movable along the extension direction of the longitudinal rails by a longitudinal motor. A telescopic device that can extend and retract the telescopic rod 200b relative to the fixed rod 200a is provided on the transverse rail so as to be movable left and right along the extension direction of the transverse rail by the transverse motor. The telescopic device can displace the gripping device 200 attached to the tip of the telescopic rod 200b in the up and down direction by performing the telescopic operation of the telescopic rod 200b.

[0022] The gripping device 200 is configured to include a main body 200A to which an extendable rod 200b is attached, and one or more gripping arms 203 supported by the main body 200A. The gripping arms 203 are attached so as to be capable of opening and closing by driving an actuator such as a motor provided on the main body 200A, thereby enabling the gripping device 200 to grip the prize P. The specific configuration of the gripping device 200 will be described later.

[0023] On the other hand, the operation unit 8 is provided in the center of the front surface of the base 1 and has a box-like shape. An operation lever 81, an operation button 82, and a display unit 83 are arranged on the upper surface of the operation unit 8. The operation lever 81 and the operation button 82 can be operated by the player, and the display unit 83 displays, for example, the remaining number of times that can be played and the remaining time for playing. The player can move the gripping device 200 to any position in the play field 2 by operating the operation lever 81, and can lower the gripping device 200 and perform a gripping operation by operating the operation button 82. When the gripping operation is completed, the gripping device 200 rises and moves above the prize discharge port 4 while maintaining the gripping arm 203 in a closed state, changing the gripping arm 203 to an open state. At this time, if the prize P is held by the holding device 200, the prize P falls toward the prize discharge outlet 4 and is guided to the prize removal chamber 6, so that the player can remove the prize P from the prize removal chamber 6.

[0024] In addition, two coin selectors 84a and 84b are arranged side by side on the front of the operation unit 8, and each of them can accept different types of coins and medals. In this embodiment, for example, the coin selector 84a is configured to be able to accept only 100 yen coins, and the coin selector 84b is configured to be able to accept only 500 yen coins, but this is not limited to this. The coins and medals accepted by the coin selectors 84a and 84b are collected in a collection box at the bottom of the base 1, for example, and can be collected by the manager of the amusement facility unlocking and opening the collection door 1b. In addition, the front of the operation unit 8 is configured to be openable and closable, and for example, the manager of the amusement facility unlocks and opens the front of the operation unit 8, so that maintenance of the operation unit 8 can be performed. In addition, instead of the coin selectors 84a, 84b, or in addition to the coin selectors 84a, 84b, a reader / writer device capable of reading payment information from an IC card or a two-dimensional code may be provided, and credit may be accepted based on the payment information read by the reader / writer device.

[0025] Next, the configuration of the gripping device 200 will be described with reference to FIGS.

[0026] First, the external configuration of the gripping device 200 will be described with reference to Fig. 2 and Fig. 3. Here, Fig. 2 is a front view showing the external appearance of the gripping device 200, Fig. 3(a) is a perspective view of the gripping device 200 seen from above, and Fig. 3(b) is a perspective view of the gripping device 200 seen from below.

[0027] As shown in Fig. 2 and Fig. 3, the gripping device 200 includes a main body 200A, an upper cover 200c having a substantially truncated cone shape that covers the upper part of the internal structure of the main body 200A, and a lower cover 200d having a substantially cylindrical shape that covers the lower part of the internal structure of the main body 200A. An opening is formed in the center of the upper surface of the upper cover 200c so that the upper surface of an upper base plate 211 (see Fig. 4) described later is exposed, and an extendable rod 200b is attached to the upper base plate 211. A plurality of (e.g., three) notches are formed at equal intervals in the circumferential direction on the side surface of the lower cover 200d, and gripping arms 203 are protruded from each of these notches. The gripping arms 203 are attached to arm attachment members 203a that can swing up and down, as described in detail later.

[0028] Next, the internal configuration of the gripping device 200 will be described with reference to Fig. 4 to Fig. 6. Fig. 4(a) is a right side view of the gripping device 200 with the upper cover 200c and the lower cover 200d omitted, and Fig. 4(b) is a perspective view of the gripping device 200 from above with the upper cover 200c and the lower cover 200d omitted. Fig. 5 is an exploded perspective view for explaining the internal configuration of the gripping device 200, Fig. 6(a) is an exploded perspective view of the sliding device 226 as viewed from the rear side, and Fig. 6(b) is an exploded perspective view of the sliding device 226 as viewed from the front side.

[0029] 4 and 5, the main body 200A includes an upper base plate 211 having a substantially thin disk shape, a plurality of (e.g., three) upper spacers 212 provided at appropriate positions on the lower surface of the upper base plate 211 and extending downward, a lower base plate 231 having a substantially thin disk shape with the lower end of the upper spacer 212 attached to the upper surface, and a plurality of (e.g., three) lower spacers 232 provided at appropriate positions on the lower surface of the lower base plate 231 and extending downward. The lower spacers 232 are screwed to the bottom surface of the lower cover 200d, while the upper base plate 211 is screwed to the upper cover, whereby the main body 200A is covered by the upper cover 200c and the lower cover 200d.

[0030] Although not shown, a rod attachment portion for attaching the extendable rod 200b is provided at approximately the center of the top surface of the upper base plate 211.

[0031] A motor support plate 221b is erected on the upper surface of the lower base plate 231, and the motor 221 is fixed to the lower base plate 231 by the motor support plate 221b. A motor shaft 221a is protruding from the tip of the motor 221, and the motor shaft 221a can rotate in the forward and reverse directions by driving the motor 221. The motor 221 is connected to a slide device 226 for opening and closing the gripping arm 203 via a predetermined link mechanism, and the slide device 226 is configured to operate by the operation of the motor 221. In addition, an insertion hole is formed in the approximate center of the lower base plate 231, through which at least the guide rail 226b and the slider 226c of the slide device 226 can be inserted. An attachment plate 226a bent into an L-shape is provided on the back of the guide rail 226b, and the attachment plate 226a is fixed to the upper surface of the lower base plate 231, thereby attaching the slide device 226 to the lower base plate 231. The detailed configuration of the slide device 226 and the link mechanism will be described later with reference to Fig. 6. Although not shown in the drawings, in this embodiment, a position detection sensor for detecting the position of the slider 226c and a photosensor for detecting the rotational position of the encoder 222a (described later) are provided, and the operation of the motor 221 can be controlled based on the detection results.

[0032] On the lower surface of the lower base plate 231, arm mounting bases 203b for mounting the multiple gripping arms 203 are provided at approximately equal intervals in the circumferential direction. The arm mounting base 203b is configured to include a mounting portion that is attached to the lower base plate 231 and a plate-shaped main body portion formed by bending downward from the mounting portion, and the main body portion is provided with an arm swing shaft 203c that pivotally supports the arm mounting member 203a so that it can swing. That is, in this embodiment, the arm mounting base 203b functions as a pivotal support portion.

[0033] A first actuated part 203d and a second actuated part 204e are provided at a predetermined distance apart from each other at the base end of the arm attachment member 203a. The first actuated part 203d is a flat tongue piece arranged above the base end of the arm attachment member 203a, and is pressed by the upper surface side of an actuating plate 226e of a sliding device 226 (described later). The second actuated part 203e is formed in a substantially pentagonal flat plate shape arranged below the base end of the arm attachment member 203a, and is pressed by the lower surface side of an actuating plate 226e of the sliding device 226 (described later). That is, the actuating plate 226e is interposed between the first actuated part 203d and the second actuated part 203e, and by moving the actuating plate 226e up and down by driving the slide device 226, the actuating plate 226e presses the first actuated part 203d or the second actuated part 203e, thereby making it possible to swing the arm mounting member 203a in the vertical direction around the arm swing shaft 203c as a support shaft. The shapes of the first actuated part 203d and the second actuated part 203e are not limited to those described above, and any suitable shape can be adopted as long as they can be pressed by the actuating plate 226e. The shape of the actuating plate 226e is also not limited to those described above, and any suitable shape can be adopted within the scope of the above-mentioned function.

[0034] An arm attachment member 203a is attached integrally to the base end of the gripping arm 203, and the gripping arm 203 can swing up and down together with the arm attachment member 203a. Since the gripping arm 203 is attached to the main body 200A in this manner, the gripping arm 203 is supported so that the tip side is heavier than the base end side, and as a result, the gripping arm 203 swings in the direction of closing due to its own weight. Note that a biasing member such as a spring that biases the gripping arm 203 in the direction of closing may be provided.

[0035] Here, a specific configuration of the slide device 226 and a link mechanism connecting the motor 221 and the slide device 226 will be described with reference to FIG.

[0036] As shown in FIGS. 6(a) and 6(b), the slide device 226 is connected to the motor 221 via a predetermined link mechanism, and is configured so that the slide device 226 is operated by being driven by the motor 221.

[0037] The link mechanism connecting the motor 221 and the slide device 226 includes a bearing 222 having a bearing hole 222b into which the motor shaft 221a of the motor 221 fits, a spring support plate 223 that engages with an engagement portion 222d formed on the head of the bearing 222 and is configured to be rotatable together with the bearing 222, a rotating cam 225 that is rotatably mounted on a rotating portion 222e formed at the rear of the bearing 222, and a spring 224 that connects the spring support plate 223 and the rotating cam 225.

[0038] Encoder 222a is attached to the tip of bearing 222 and rotates together with bearing 222. Encoder 222a can detect the rotational position by a photosensor (not shown), and can control the driving of motor 221 based on this.

[0039] The spring support plate 223 is formed in a substantially elliptical shape, and is provided with an engagement hole 223b that engages with an engagement portion 222d formed on the rear side of the encoder 222a at the head of the bearing 222 to become the rotation axis, and a support plate side boss 223a that protrudes rearward at a position eccentric from the engagement hole 223b. Therefore, the spring support plate 223 rotates together with the bearing 222.

[0040] A rotating cam 225 is disposed behind the spring support plate 223. The rotating cam 225 is formed in a substantially elliptical shape, and is rotatably mounted on a rotating part 222e formed at the rear of the bearing 222. The rotating cam 225 is provided with an insertion hole 225a serving as a rotation axis, an engagement hole 225b opened at a position eccentric from the insertion hole 225a, and a cam side boss 225c provided between the insertion hole 225a and the engagement hole 225b and protruding forward. The rotating cam 225 is not engaged with the bearing 222, and is therefore rotatable independently of the bearing 222. An engagement shaft 226i of a swinging member 226g described later is inserted into the engagement hole 225b. That is, the engagement hole 225b functions as a support part.

[0041] Between the spring support plate 223 and the rotating cam 225, a spring 224 formed of a helical spring is disposed, and both ends are formed in an annular shape. One end of the annular portions at both ends is a support side engaging portion 224a that is inserted into the support plate side boss 223a of the spring support plate 223, and the other end is a cam side engaging portion 224b that is inserted into the cam side boss 225c of the rotating cam 225. The spring 224 configured as described above is disposed around the axis of the bearing 222 by being inserted into the bearing 222. The spring 224 configured in this manner can apply an urging force to the rotating cam 225 depending on the amount of rotation of the motor 221. The urging force of the spring 224 is preferably set appropriately in accordance with the configuration of the gripping device 200. In this manner, in this embodiment, the spring 224 functions as an urging means.

[0042] The slide device 226 is configured to include a mounting plate 226a, a guide rail 226b, a slider 226c, a base plate 226d, an operating plate 226e, a flange 226f, a swinging member 226g, a swinging shaft 226h, an engagement shaft 226i, and a support base 226j.

[0043] The mounting plate 226a extends in the vertical direction and fixes the slide device 226 to the lower base plate 231. The guide rail 226b extends in the vertical direction and has its back surface fixed to the mounting plate 226a, and guides the vertical movement of the slider 226c. The slider 226c extends in the vertical direction and is attached to the guide rail 226b, and is capable of moving in the vertical direction along the guide rail 226b. Thus, in this embodiment, the guide rail 226b functions as a guide section.

[0044] The base plate 226d is attached to the front side of the slider 226c, and the lower end is bent forward to form the above-mentioned substantially rectangular operating plate 226e, while the upper end is bent forward to form a flange 226f. The flange 226f supports the upper end of the swing shaft 226h. The support base 226j is provided below the flange 226f at a predetermined interval on the front side of the base plate 226d, protrudes forward, and is fixed to the base plate 226d to support the lower end of the swing shaft 226h.

[0045] The swinging member 226g is formed in a U-shape in side view, and has an insertion hole (not shown) on each of the upper and lower surfaces through which the swinging shaft 226h can be inserted, and the swinging shaft 226h is inserted into the insertion hole and journaled, thereby allowing the swinging member 226g to swing in the left-right direction. In addition, a cylindrical engagement shaft 226i is provided on the front side of the swinging member 226g so as to protrude forward, and is inserted into the engagement hole 225b of the rotating cam 225 as described above. Thus, in this embodiment, the swinging member 226g functions as a swinging portion, and the engagement shaft 226i functions as an engagement means.

[0046] Since the gripping device 200 in this embodiment is configured as described above, when the motor 221 is driven and the motor shaft 221a rotates clockwise, the bearing 222 that supports the motor shaft 221a rotates together with the motor shaft 221a. Note that since the encoder 222a is integrally attached to the bearing 222, the encoder 222a also rotates together with the bearing 222, and the amount of rotation of the encoder 222a is detected by a photosensor, so that the amount of rotation of the motor 221 can be detected.

[0047] Furthermore, the spring support plate 223 is attached so as to engage with the bearing 222, and is configured to rotate together with the motor shaft 221a.

[0048] One end (support side engaging portion 224a) of the spring 224 is attached to a support plate side boss 223a provided on the spring support plate 223, and the other end (cam side engaging portion 224b) is attached to a cam side boss 225c provided on the rotating cam 225. Therefore, when the motor shaft 221a rotates in the clockwise direction by driving the motor 221, the spring support plate 223 rotates in the clockwise direction, and a clockwise biasing force is applied to the rotating cam 225 by the spring 224. Since the cam side boss 225c to which the cam side engaging portion 224b is attached is provided at a position eccentric to the insertion hole 225a serving as the rotation axis, the biasing force of the spring 224 causes the rotating cam 225 to rotate in the clockwise direction with the insertion hole 225a serving as the rotation axis.

[0049] When the rotating cam 225 rotates clockwise, the engagement hole 225b, which is opened at a position eccentric to the insertion hole 225a, is displaced along an arc-shaped trajectory with the insertion hole 225a as the axis. In other words, the rotating cam 225 is displaced in a circular motion.

[0050] Here, since the base plate 226d provided integrally with the slider 226c is displaced by the linear motion in the vertical direction, it is necessary to convert the circular motion of the rotating cam 225 into the linear motion of the base plate 226d. Therefore, in this embodiment, the swinging member 226g attached to the base plate 226d is made swingable in the left-right direction around the swinging shaft 226h as a support shaft, and the engagement shaft 226i provided on the swinging member 226g is inserted into the engagement hole 225b of the rotating cam 225 to engage the swinging member 226g with the rotating cam 225, so that only the linear motion in the vertical direction can be extracted from the rotational motion of the rotating cam 225 by the action of the swinging member 226g and transmitted to the base plate 226d.

[0051] As described above, the base plate 226d to which the clockwise biasing force of the spring 224 has been transmitted is displaced upward by the slider 226c attached to the guide rail 226b. As a result, the operating plate 226e is displaced upward by the biasing force of the spring 224, and is capable of generating a gripping force in the gripping arm 203 by the pressing force against the first actuated part 203d pressed by the operating plate 226e.

[0052] On the other hand, when the motor 221 is driven and the motor shaft 221a rotates counterclockwise, the spring 224 rotates counterclockwise, and as a result, the rotating cam 225 also rotates counterclockwise. In addition, the weight of the base plate 226d etc. promotes the downward movement of the base plate 226d. As a result, the gripping arm 203 is opened by the pressing force of the actuating plate 226e against the second actuated portion 203e. In addition, even if a clockwise biasing force is applied to the rotating cam 225, for example, when a downward biasing force is applied to the base plate 226d by the weight of the prize held by the gripping arm 203, if the downward biasing force to the base plate 226d exceeds the clockwise biasing force to the rotating cam 225, the base plate 226d may be displaced downward against the biasing force of the spring 224, and as a result, the gripping arm 203 may be opened. Furthermore, when the gripping arm 203 subsequently opens and the prize falls, the clockwise biasing force on the rotating cam 225 exceeds the downward biasing force on the base plate 226d, so that the base plate 226d is displaced upward, and as a result, the gripping arm 203 changes to a closed state due to its own weight.

[0053] The operation of the gripping device 200 configured as above will be described with reference to Figures 7 to 10. In Figures 7 to 10, the upper cover 200c and the lower cover 200d are omitted for ease of explanation. Also, some internal configurations of the gripping device 200 may be omitted.

[0054] FIG. 7 shows the gripping arm 203 in an open state. In the state shown in FIG. 7, the motor 221 is driven so that the gripping arm 203 is in a predetermined position (first position) in an open state. At this time, the support plate side boss 223a and the cam side boss 225c come into contact with each other, and the support plate side boss 223a presses downward against the cam side boss 225c, so that the base plate 226d of the slide device 226 is pressed downward by this pressing force. At this time, a counterclockwise biasing force may be applied by the spring 224. As a result, the gripping arm 203 attached to the lower base plate 231 and pivotally supported is opened because the second actuated portion 203e provided at its base is pressed down by the actuating plate 226e.

[0055] FIG. 8 shows a state where the gripping arm 203 is in a closed state and no gripping force is applied by the pressing of the actuation plate 226e (i.e., a free state). In the state shown in FIG. 8, the motor 221 is driven and the spring support plate 223 is rotated clockwise from the first position shown in FIG. 7. At this time, the spring 224 biases in the clockwise direction, so that the rotating cam 225 connected to this spring 224 also rotates in the clockwise direction by the biasing force of the spring 224. The swinging member 226g of the sliding device 226 is displaced upward from the position shown in FIG. 7, and the actuation plate 226e is also displaced upward together with the base plate 226d attached thereto. The gripping arm 203 is swung to a position where it is in a closed state by its own weight, but the actuation plate 226e does not apply a pressing force to the first actuated portion 203d, so that no gripping force is applied. 7 to the position shown in Fig. 8, the engagement hole 225b of the rotating cam 225 forms an arc-shaped trajectory, so that the swinging member 226g swings left and right in response to the rotational motion of the rotating cam 225, thereby enabling conversion from the rotational motion to a linear motion in the up and down direction. For this reason, in the past, for example, a configuration was used in which a large operation was required to convert the rotational motion to a linear motion, such as moving a boss along a horizontal hole, but in this embodiment, the swinging motion of the swinging member left and right can efficiently convert to a linear motion, so that a large operation is not required, and space can be saved with a simpler configuration than in the past.

[0056] In this embodiment, an adjustment screw may be provided corresponding to each of the three gripping arms 203, and the angle of the gripping arms 203 in the closed state may be changed by adjusting this adjustment screw.

[0057] FIG. 9 shows a state in which the gripping arm 203 is in a closed state and a gripping force is applied by pressing the actuation plate 226e against the first actuated portion 203d. In the state shown in FIG. 9, the motor 221 is driven, and the spring support plate 223 rotates further in the clockwise direction from the state shown in FIG. 8. At this time, the rotating cam 225 rotates further in the clockwise direction due to the biasing force of the spring 224. Alternatively, even if the rotating cam 225 does not rotate, the biasing force of the spring 224 increases the upward biasing force of the base plate 225d. In the state shown in FIG. 9, the upper end of the slider 226c reaches the upper end of the guide rail 226b, and therefore the upward movement of the base plate 226d is restricted. In this state, if the biasing force of the spring 224 in the clockwise direction increases further, the upward biasing force of the base plate 225d also increases, and as a result, the gripping force of the gripping arm 203 increases.

[0058] FIG. 10 shows a state in which the gripping arm 203 is in a closed state and a gripping force larger than that in the state shown in FIG. 9 is applied. In the state shown in FIG. 10, the motor 221 is driven and the spring support plate 223 is further rotated clockwise from the state shown in FIG. 9. At this time, the upward movement of the base plate 226d is restricted, so that the biasing force of the spring 224 is further increased. Furthermore, in this embodiment, the support plate side boss 223a of the spring support plate 223 abuts against the cam side boss 225c of the rotating cam 225 from below, and the support plate side boss 223a pushes upward against the cam side boss 225c, so that the base plate 226d of the slide device 226 is pushed upward by this pressing force in addition to the biasing force of the spring 224. As a result, the upward biasing force of the base plate 226d is also increased. 9. Therefore, the pressing force of the actuating plate 226e against the first actuated portion 203d increases, and the gripping force of the gripping arm 203 becomes greater than in the state shown in FIG.

[0059] As described above, according to this embodiment, the gripping arm 203 grips the prize P. The arm mounting base 203b pivotally supports the gripping arm 203 so that it can swing up and down. The first actuated part 203d and the second actuated part 203e are provided at the base of the gripping arm 203. The actuating plate 226e acts on the first actuated part 203d and the second actuated part 203e. The motor 221 actuates the actuating plate 226e. The first actuated part 203d and the second actuated part 203e are arranged spaced apart from each other in the vertical direction. The actuating plate 226e is interposed between the first actuated part 203d and the second actuated part 203e, and is displaceable in the vertical direction by the drive of the motor 221. The actuating plate 226e is moved upward to act on the first actuated part 203d, thereby applying a gripping force to the gripping arm 203. As a result, it is possible to provide a prize capturing device that enables the device for grasping the prize to be made smaller.

[0060] According to this embodiment, the motor 221 includes a rotary motor. The rotary cam 225 rotates by being driven by the motor 221. The engagement hole 225b is provided at a position eccentric to the rotary shaft of the rotary cam 225 and displaces together with the rotary cam 225. The guide rail 226b extends in the vertical direction to guide the operating plate 226e in the vertical direction. The swinging member 226g displaces together with the operating plate 226e and swings around the extending direction of the guide rail 226b as a support shaft. The engagement shaft 226i engages the engagement hole 225b with the swinging member 226g. When the rotary cam 225 rotates by being driven by the motor 221 and the engagement hole 225b is displaced, the swinging member 226g that engages with the engagement hole 225b swings by the engagement shaft 226i and the operating plate 226e is displaced along the extending direction of the guide rail 226b. As a result, it is possible to reduce the amount of movement and enable dynamic movement, and by using a motor, it is possible to conserve energy.

[0061] Furthermore, according to this embodiment, the spring 224 applies a biasing force to the rotating cam 225 according to the amount of rotation of the motor 221. It is possible to change the gripping force of the gripping arm 203 by changing the biasing force of the spring 224. As a result, it is possible to realize an operation that takes into account the weight of the prize, thereby improving the playability of the game.

[0062] The spring 224 includes a helical spring, which allows for a compact configuration.

[0063] The actions and effects described in the embodiments of the present invention are merely a list of the most preferable actions and effects resulting from the present invention, and the actions and effects of the present invention are not limited to those described in the embodiments of the present invention. [Explanation of symbols]

[0064] 100 Crane game machine (prize-winning game device) 200 Grasping device (prize acquisition device) 203 Grasping Arm (Arm) 203b Arm mounting base (axis support) 203d 1st actuated part (actuated part) 203e 2nd actuated part (actuated part) 226e Actuating plate (actuating part) 221 Motor (driving means) 224 Spring (biasing means) 225 Rotating Cam 225b Engagement hole (support part) 226 Slide device 226b Guide rail 226g Swinging member (swinging part) 226i Engagement shaft (engagement means)

Claims

1. A prize acquisition device for acquiring a prize used in a prize acquisition game device, comprising: An arm for grasping a prize; a pivotal support portion that pivotally supports the arm so as to be swingable in the vertical direction; an actuated portion provided at a base portion of the arm; an actuating portion for acting on the actuated portion; A driving means for operating the operating unit, The actuated portion includes a first actuated portion and a second actuated portion, the first actuated portion and the second actuated portion being vertically spaced apart from each other, the actuating portion is interposed between the first actuated portion and the second actuated portion, and is displaceable in a vertical direction by being driven by the driving means; The actuating portion is moved downward to act on the second actuated portion, thereby swinging the tip side of the arm upward to open the arm, The actuating part is moved upward to act on the first actuated part, thereby applying a gripping force to the arm, The driving means includes a rotary motor, A rotating cam that is rotated by the driving of the rotary motor; a support portion that is provided at a position eccentric to a rotation shaft of the rotating cam and displaces together with the rotating cam; A guide portion extending in the vertical direction to guide the operating portion in the vertical direction; a swinging portion that is displaced together with the operating portion and swings about a support axis in the extending direction of the guide portion; an engagement means for engaging the support portion with the swing portion; A prize acquisition device characterized in that when the rotating cam rotates and the support part is displaced by driving the rotating motor, the oscillating part that engages with the support part by the engagement means oscillates and the operating part is displaced along the extension direction of the guide part.

2. A biasing means for applying a biasing force to the rotating cam in accordance with the amount of rotation of the rotary motor, 2. The prize acquisition device according to claim 1, wherein the gripping force of the arm can be changed by changing the biasing force of the biasing means.

3. The prize acquisition device as described in Claim 2, characterized in that the biasing means includes a wound spring.

4. A prize acquisition game device equipped with a prize acquisition device described in any one of claims 1 to 3.

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