JPH10295928A - Crane game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crane game machine capable of smoothly opening or closing a grip pawl section while securing the interval between the tips of arm members when the grip pawl section is opened and capable of surely gripping a prize so that it is not easily dropped from the grip pawl section. SOLUTION: The grip pawl section 11 of the prize grip device 3 of this crane game machine is constituted of a pair of arm members 12, 12 each having one joint. Each arm member 12 is constituted of a base end side arm 14 and a tip side arm 15 rockably connected at a joint portion and a link arm 17 rockably connected to the tip side arm 15 at one end and rockably supported on a prize grip device main body 10 at the other end. The linear distance from the pivotal support point 19 of the base end side arm 14 to the pivotal support point 21 of the link arm 17 is changed according to the closing action of the grip pawl section 11, and the tip side arm 15 is rocked inward at the joint portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane game machine for playing a game in which a prize is held by a holding claw portion of a prize holding device.

[0002]

2. Description of the Related Art Conventionally, as a crane game machine of this type, a prize holding device is provided movably by a moving device inside a prize room surrounded by a transparent plate, and a prize drop opening is opened in the prize room. And a prize take-out opening communicating with the prize drop opening is provided outside the prize room,
There is known an apparatus provided with an operation switch and a coin slot.

FIG. 11 shows an example of a premium holding device provided in the conventional crane game machine. In this prize holding device, a main body frame 102 connected to the moving device (not shown) via a telescopic connecting pipe 101.
Further, a pair of substantially L-shaped arm members 104, 104 constituting the gripping claw portion 103 are pivotally supported in opposition. A motor 10 for opening and closing the grip claw 103 is provided in the main body frame 102.
The elliptical cam 106 is attached to the rotating shaft of the motor 105 so as to abut the arm members 104, 104 from inside. Further, the arm member 10
4 and 104 are mutually connected by a tension type coil spring 107 and are urged inward.

When the elliptical cam 106 comes into contact with the arm members 104 in the short axis direction, the arm members 104, 104 swing inward, and the grip claw 10
3 is closed, and the elliptical cam 106 is
When the arm members 104 and 104 abut against the coil springs 107 and 104, the arm members 104 and 104 swing outward to open the gripping claws 103.

When playing a game with this crane game machine, when a player inserts a predetermined amount of coins into a coin slot and operates an operation switch, the prize gripping device moves in the left-right direction and the front-back direction in response to the operation. After moving to an arbitrary position, it descends, where the elliptical cam 10 of the prize gripping device is located.
6 rotates 90 ° to close the gripping claw 103, and then moves up to the position above the prize drop opening after the prize gripping device rises, at which position the elliptical cam 106 rotates 90 ° to open the gripping claw 103. . Therefore, if the prize has been successfully grasped between the arm members 104 when the grip claw 103 is closed, the prize will fall to the prize dropout and come out of the prize takeout port, and the player Get prizes.

[0006]

By the way, there are various kinds of prizes having different sizes and shapes, and in order to be able to hold both small prizes and large prizes by the above-mentioned prize holding device of the conventional crane game machine. When the grip claw 103 is closed as shown by the two-dot chain line in FIG. 11, the tips of the arm members 104, 104 are almost in contact with each other, and the grip claw 103 is open as shown by the solid line in FIG. In such a case, it is necessary to secure a predetermined distance d between the distal ends of the arm members 104, 104. Therefore, the arm member 10
4, the swing angle θ becomes large, and it is easy to cause mechanical problems, and it cannot be said that the opening / closing operation of the grip claw 103 is performed smoothly.

[0007] For example, if the arm members 104, 104 are formed to extend long downward, the swing angle θ of the arm member 104 can be reduced while maintaining the distance d. However, in this case, the prize is transferred to the arm member 10.
It is hard to be in a gripping state like holding between 4,104,
There is a disadvantage that the prize easily falls from the grip claw 103.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a structure in which an opening and closing operation of a gripping claw is smoothly performed while securing a distance between the tips of arm members when the gripping claw is opened. It is another object of the present invention to provide a crane game machine capable of securely holding a prize so that the prize does not easily fall from the holding claw portion.

[0009]

In order to achieve the above object, the present invention comprises a prize gripping device having a prize gripping device main body and a gripping claw that opens and closes below the prize gripping device. In a crane game machine adapted to grip a prize below the device, the gripping claw portion includes a plurality of arm members having at least one joint, and the arm members are swingably connected at joint portions. An end arm and a distal arm, and a connecting arm having one end connected to the distal arm so as to be relatively swingable and the other end pivotally supported so as to be able to swing toward the prize gripping device main body. With the closing operation, the linear distance from the pivot point on the main body side of the premium holding device to the pivot point on the distal arm side of the connecting arm changes, and the distal arm swings inward at the joint. Like And those are.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 generally indicates a crane game machine according to an embodiment of the present invention. The crane game machine 1 includes a prize room 2 surrounded on all sides by transparent plates, and a prize holding device 3 provided in the prize room 2.
And a moving device 4 for moving the prize gripping device 3 to a desired position in the prize room 2 and a prize drop opening 5 opened in the prize room 2. A prize take-out port 6 communicating with a prize drop port 5 inside the game machine main body, an operation switch 7 and a coin insertion slot 8 are provided in a front portion below the prize room 2.

The moving device 4 is a general device that hangs and supports the prize holding device 3 and moves the prize gripping device 3 in three directions of front and rear, left and right, and up and down. Illustration and explanation are omitted.

As shown in FIGS. 2 to 5, the prize gripping device 3 includes a prize gripping device main body 10 formed in a substantially spherical capsule shape, and a gripping claw that opens and closes below the prize gripping device main body 10. A part 11.

The gripping claw 11 is composed of a pair of arm members 12, 12 protruding from the side surface of the premium holding device body 10 and extending obliquely downward. Each of the arm members 12 each having one joint includes a proximal arm 14 and a distal arm 15 that are swingably connected by a pin 13 provided at the joint portion, and the proximal arm 14 and the distal arm Slit-shaped hole 1 formed over arm 15
6 and a connecting arm 17 inserted in the inside.

The base arm 14 has an end on the prize gripping device main body 10 side pivotally supported by a support member 18 fixed in the prize gripping device main body 10 via a pin 19 so as to be swingable. I have. In addition, the base end side arm 14 is integrally formed with a protrusion 20 for opening and closing operation, which protrudes from the support member 18 toward the inside of the premium holding device body 10. on the other hand,
The linking arm 17 has one end connected to the distal arm 15 via a pin 21 so as to be relatively swingable, and the other end connected to the pin 22.
Is pivotally supported by the support member 18 via the support member 18.

The pin 22 for pivotally supporting the connecting arm 17 on the side of the prize gripping device main body 10 is more similar to the pin 19 for pivotally supporting the proximal end arm 14 on the side of the prize gripping device main body 10.
The prize holding device main body 10 is arranged radially outside. The pin 21 that connects the connecting arm 17 and the distal arm 15 is disposed closer to the distal end of the distal arm 15 than the pin 13 that connects the proximal arm 14 and the distal arm 15.

A frame 30 having a U-shape in side view is provided in the prize gripping device main body 10, and a motor 31 for opening and closing the gripping claw 11 is mounted on the upper surface of the frame 30 in a downward direction. As the motor 31, a motor capable of controlling the rotation angle, such as a stepping motor, is used. A screw shaft 32 is fixed to an output shaft (not shown) of the motor 31, and an operation piece 33 capable of pushing down the protruding portion 20 of the base arm 14 is fitted on the screw shaft 32. The operation piece 33 is formed in a T-shaped cross section from a disk portion and a cylindrical portion continuously provided thereunder, and a female screw formed on the inner surface of the cylindrical portion is screwed with a male screw of the screw shaft 32. . As shown in FIG. 4, a notch 34 formed on the periphery of the disk portion and a rod-shaped member 35 fixed to the frame 30 are engaged to form a detent, and the motor 31 When the screw shaft 32 is rotated in the forward and reverse directions, the operation piece 33 moves up and down without rotating.

An annular spring receiver 36 is fitted on the cylindrical portion of the operation piece 33 so as to be slidable up and down. A compression type coil spring 38 is interposed between the spring receiver 36 and a spring seat 37 fixed below the spring receiver 36, and the elasticity of the coil spring 38 causes the spring receiver 36 to project from the projecting portion of the base side arm 14. 20 and thereby the arm member 1
2, 12 are urged inward (close direction).

Reference numeral 39 denotes a photoelectric sensor mounted on the frame 30. When the sensor 39 detects the operation piece 33, the motor 31 stops so that the upper end position of the movement range of the operation piece 33 is adjusted. Is set. Note that the lower end position of the movement range is the motor 31 from the upper end position.
Is set by limiting the number of rotations to a constant. 40
Is a wire that suspends the prize gripping device 3 on the moving device 4, and 41 is a power and electric signal supply for connecting between the control device (not shown) on the crane game machine 1 main body side and the prize gripping device 3. It is an electric cable. Further, the moving device 4
Is provided with a limit switch (not shown) for detecting that the premium holding device 3 has come into contact with the premium based on the tension of the wire 40.

The crane game machine 1 is used by placing a number of prizes (not shown in FIG. 1) on a prize mounting surface 2a at the bottom of the prize room 2. At that time, in the game standby state, the prize gripping device 3 is located above the prize drop opening 5 as shown in FIG. 1, and in the prize gripping device 3, as shown in FIG. When the operating piece 33 is in the position,
Is pushed down, the arm members 12 and 12 swing outward, and the gripping claw 11 is opened.

The player playing the game inserts a predetermined amount of coins into the coin insertion slot 8 and operates the operation switch 7.
Is operated, the moving device 4 operates according to this operation,
The prize gripping device 3 is first moved leftward as viewed from the front, and then moved rearward to a desired position of the player, and then lowered.

Then, the prize holding device 3 is moved to the prize placing surface 2a.
When the tension on the wire 40 is loosened on the upper prize and the limit switch detects this, the motor 31 of the prize gripping device 3 is rotated by the electric power supplied from the control device, and the operation piece 33 is moved in the movement range. As it rises to the upper end position, the spring receiver 36 rises due to the urging force of the coil spring 38 to push up the protruding portion 20 and swing the proximal arm 14 of each arm member 12 inward.

Here, when the base end side arm 14 swings, the connecting arm 17 also swings around the pin 22. However, since the pin 22 is located outside the pin 19 as described above, as shown in FIG. Meanwhile, the arc r2 drawn by the pin 21 at the tip of the connecting arm 17 gradually approaches the arc r1 drawn by the pin 13 at the tip of the proximal arm 14. That is, the proximal arm 1
As the swing angle of the pin 4 increases, the pin 21 (the pivot point of the base arm 14 on the side of the prize gripping device main body 10) increases.
The linear distance (hereinafter, simply referred to as “distance”) to (the pivot point on the distal end side arm 15 side of the connecting arm 17) is shortened, and the pin 21 is pulled inward by the connecting arm 17. Therefore, the distal arm 15 swings more inward about the pin 13 than the proximal arm 14.

When the gripping claw 11 is closed as shown by the solid line in FIG. 6, the moving device 4 operates again, and the prize gripping device 3 is operated.
After returning to the predetermined height, the motor 31 of the prize gripping device 3 rotates in the opposite direction to the above, and the operation piece 33 descends to the lower end position of the movement range. Then, the gripping claws 11 open in the state shown in FIG. Therefore, as shown by the two-dot chain line in FIG. 2, when the grip claw 11 is closed, the premium K is placed between the arm members 12, 12.
Has been successfully grasped, the prize K falls to the prize drop port 5 and comes out of the prize take-out port 6, and the player can acquire the prize K.

As described above, in this crane game machine 1, the distance from the pin 19 to the pin 21 is shortened with the closing operation of the gripping claw 11, and the distal arm 15 is jointed with each arm member 12. As the gripping claw 11 is closed, the tips of the arm members 12 and 12 are almost in contact with each other, and when the gripping claw 11 is opened, the distal ends of the arm members 12 and 12 The arm member 12 (proximal arm 14) with respect to the prize holding device main body 10 while ensuring a predetermined distance d (see FIG. 2) so that both small prizes and large prizes can be held.
(See FIG. 6) can be reduced.
Therefore, the design of the opening / closing mechanism including the spring receiver 36, the operation piece 33, the protruding portion 20, and the like is facilitated, and the operation thereof is not excessive, and the opening / closing operation of the grip claw 11 is smoothly and reliably performed. It becomes possible to.

Since the distal end arm 15 swings inward with the closing operation of the gripping claw 11, the prize K is placed between the arm members 12, 12 as shown by a two-dot chain line in FIG. It is grasped in the state of being held. Therefore, the holding state is reliable, and the prize K once held is held by the holding claw portion 1.
It does not fall easily from one.

Further, the distal arm 15 swings at the joints, and the entire operation of the gripping claw 11 becomes an image that has never existed before, such as the operation of a finger of a human or a robot. There is also an advantage that the motivation of the game can be enhanced by giving an interest in and expecting that the prize can be acquired well.

It is needless to say that the crane game machine of the present invention is not limited to the above embodiment. For example, the shape of the base end side arm, the distal end side arm, and the linking arm constituting the arm member, and the positional relationship between the respective pivot points are arbitrary, and the distal end side as in the arm member 12a shown in FIG. Even if the arm 15 is formed in the shape of a crank and the pin 21 connecting the distal arm 15 and the connecting arm 17 is disposed at a position protruding inward from the proximal arm 14, substantially the same operation as described above can be obtained. .

8, the pin 22 for pivotally supporting the connecting arm 17 on the side of the prize gripping apparatus main body 10 and the base side arm 14 on the side of the prize gripping apparatus main body 10 like the arm member 12b shown in FIG. It may be arranged inside the supporting pin 19. In this case, as the proximal arm 14 swings inward, the distance from the pin 19 to the pin 21 becomes longer, and the pin 21 is pushed outward by the connecting arm 17, whereby the distal arm 15 Will be swung inward.

Further, the arm member 12b has a pin 2
1 is disposed outside the proximal arm 14, but as in the arm member 12 c shown in FIG.
4, the same operation as above can be obtained.

By the way, as shown in FIG. 9, when a straight line m passing through the pin 13 and the pin 21 is considered, the pin 21 and the pin 19 are connected with the straight line m in a state where the gripping claw is fully opened. If they are in opposite areas, which are separated from each other, when the proximal arm 14 swings inward, the distal arm 15 swings outward. Therefore, the pin 21 needs to be closer to the pin 19 than the straight line m. (This applies to any of FIGS. 6 to 8.)

The arm member may have a plurality of joints. For example, as shown in an arm member 12d shown in FIG. ′, One end is pivotally connected to the distal arm 15 ′ via a pin 21 ′, and the other end is connected to the proximal arm 14 via a pin 22 ′ (prize holding device main body). A side) may be provided with a connecting arm 17 ′ pivotally supported pivotably.

In this arm member 12d having two joints, the distal arm 15 moves relative to the proximal arm 14 as the proximal arm 14 swings, similarly to the above-described arm members. In addition to swinging, this distal arm 1
5, the distal arm 15 'is moved to the distal arm 1'.
Swing with respect to 5. Thus, the arm member 12d is
Since each joint is bent inward, the swing angle of the proximal arm 14 with respect to the premium holding device body 10 can be further reduced.

In the above, the case where the gripping claw portion is constituted by a pair of arm members arranged opposite to each other has been described, but the gripping claw portion is formed by three or more arm members radially arranged in plan view. The present invention is also applicable to the case where is configured.

In the present invention, the mechanism for opening and closing the grip claw is not limited. For example, it is also possible to open and close the grip claw using an elliptical cam as in a conventional example.

Further, the configuration of each part of the crane game machine other than the prize gripping device is also arbitrary. For example, the prize mounting surface is configured to rotate around a vertical axis, and the moving device moves the prize gripping device up and down, left and right. The present invention is also applicable to a case in which the object is moved in two directions (or only in the vertical direction).

[0036]

As described above, in the crane game machine according to the present invention, the distal end arm swings inward at the joint portion of each arm member with the closing operation of the gripping claw portion. It is possible to reduce the swing angle of the arm member with respect to the prize gripping device main body while holding a large prize by ensuring a predetermined interval between the distal ends of the arm members when the gripping claw is opened. it can. Therefore,
The mechanism for opening and closing the grip claw can be easily designed, and the opening and closing operation of the grip claw can be made smooth and reliable. Also, since the distal arm swings inward and grips the prize between the arm members,
Once the prize is grasped, the prize can be securely grasped so as not to easily fall from the grasping claw portion. In addition, the movement of the entire gripping claw can be made to look like an unprecedented image like a human or robot's finger, making the player interested in the game and expecting to acquire prizes, and raising the motivation of the game. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a crane game machine according to one embodiment of the present invention.

FIG. 2 is a front view of the premium holding device.

FIG. 3 is a sectional view of the premium holding device.

FIG. 4 is a sectional view of an essential part taken along line AA of FIG. 3;

FIG. 5 is an enlarged side view showing an arm member and a support member.

FIG. 6 is a sectional view of the premium holding device showing an operation of the arm member.

FIG. 7 is a schematic explanatory view showing another embodiment of the arm member.

FIG. 8 is a schematic explanatory view showing another embodiment of the arm member.

FIG. 9 is a schematic explanatory view showing another embodiment of the arm member.

FIG. 10 is a schematic explanatory view showing another embodiment of the arm member.

FIG. 11 is a front view showing a premium holding device of a conventional crane game machine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 crane game machine 3 prize gripping device 10 prize gripping device main body 11 gripping claw portion 12 arm member 14 proximal end arm 15, 15 ′ distal end arm 17, 17 ′ linking arm

Claims (1)

[Claims] 1. A crane game machine comprising a prize gripping device having a prize gripping device main body and a gripping claw that opens and closes below the prize gripping device, wherein the gripping claw grips a prize below the prize gripping device. The gripping claw portion includes a plurality of arm members each having at least one joint. The arm member includes a base arm and a distal arm that are swingably connected at a joint portion, and one end is connected to the distal arm. A connecting arm rotatably pivotally connected to the main body of the prize gripping device at the other end so as to be pivotable relative to the main body of the prize gripping device. A linear distance from the pivot point of the arm to the pivot point on the distal arm side of the connecting arm is changed, so that the distal arm swings inward at the joint portion.