JP6925659B2 - Freebie acquisition device and freebie acquisition game device - Google Patents

Description

The present invention relates to a prize acquisition device and a prize acquisition game device.

A prize acquisition game device represented by a crane game machine is used by placing a large number of prizes in a play field formed inside a housing. The player can move the prize acquisition device having an arm in the play field by using an operating means such as a lever or a button. Then, the player moves the prize acquisition device to the position where the desired prize is placed, then grips the prize with the arm, and in that state, lifts the prize to the prize discharge port. Can be earned.

Also, depending on the size, weight, or shape of the prize, it is replaced with an appropriate type of arm, but since the arm was fixed to the prize acquisition device body by screwing, the arm replacement work It took a lot of effort.

In view of these circumstances, in the conventional prize acquisition device, the arm is easily attached / detached by one-touch operation of the fitting release rod for fixing the arm with the fitting piece body and displaceing the arm. (For example, Patent Document 1)

Japanese Unexamined Patent Publication No. 2006-043269

However, the prize acquisition device described in Patent Document 1 has a problem that the fitting release rod needs to be operated when the arm is removed, and the arm replacement work is still complicated.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a prize acquisition device and a prize acquisition game device capable of making the arm attachment / detachment work easier and reducing the replacement work cost. Is.

In order to solve the above object, the invention according to claim 1 is
A prize acquisition device used in a prize acquisition game device, which includes an arm for gripping a prize and a main body for opening and closing the arm.
An arm holding portion for holding the base end portion of the arm is provided at the mounting position of the arm on the main body portion.
A held portion held by the arm holding portion is provided at the base end portion of the arm.
The arm holding unit may have a pair of holding members opposed,
Is configured such that the arm by the holding member before Symbol a pair are engaged respectively engaged with the held portion is held by the arm holding unit,
The pair of holding members are urged in directions facing each other, and are pressed from the opposite side so that they can be displaced against the urging force.
When the arm is pulled in the pulling direction, the pair of holding members holding the held portion are pressed from the opposite side by the arm to be displaced and separated from the held portion, so that the arm is moved. Detachable from the arm holder,
When the arm is inserted into the arm holding portion, the pair of holding members are pressed and displaced from the opposite side by the arm, and then when the pair of holding members and the held portion are aligned, an urging force is applied. The held portion is engaged and held by the pair of holding members.

The invention according to claim 2 is the present invention according to claim 1 in the prize acquisition apparatus.
The pair of holding members are each composed of a ball plunger.

The invention according to claim 3 is the prize acquisition device according to claim 1 or 2.
A contact portion is provided below the arm holding portion in the main body portion, and when the lower end of the base end portion of the arm abuts on the corresponding contact portion, the held portion is separated from the pair of holding members. It is characterized in that the base end portion of the arm is restricted from being displaced downward.

The invention according to claim 4 is the prize acquisition device according to any one of claims 1 to 3.
An insertion hole is provided between the base end portion and the tip end portion of the arm.
With the first shaft supporting portion which is pivotally supported by the front Stories body portion is provided at one end, a first support member shaft portion protruding from the other end portion to be inserted into the insertion hole,
It arranged opposite to the first support member, with a second shaft supporting portion which is pivotally supported on the main body portion in said first shaft support coaxial with the first support member is provided at one end, the insertion has the shaft portion inserted through the hole bearing possible bearing portion and a second supporting member provided at the other end,
The arm the shaft portion by the shaft portion is the insertion hole inserted through the screw and the second support member and the first supporting member while being bearing to the bearing part fastened to a supporting shaft Is swingably supported.

The invention according to claim 5 is the prize acquisition device according to claim 4.
A notch for introducing the shaft portion into the bearing portion is formed from the side end portion of the second support member.
The shaft portion is configured to be removable from the bearing portion by swinging the second support member with the second shaft support portion as a support shaft.

The invention according to claim 6 is a prize acquisition game device.
It is characterized in that the prize acquisition device according to any one of claims 1 to 5 is provided.

According to the present invention, it is possible to provide a prize acquisition device and a prize acquisition game device that can make the arm attachment / detachment work easier and reduce the replacement work cost.

It is a perspective view which shows the appearance of the crane game machine in this embodiment. (A) is a perspective view of the gripping device in which the arm is in the open state, and (B) is a perspective view of the gripping device in which the arm is in the closed state. It is a front view of the gripping device in which the arm is in the closed state. FIG. 3 is a cross-sectional view taken along the line AA in FIG. In the cross-sectional view taken along the line BB in FIG. 3, FIG. 3A is a view showing a state in which the arm is in a closed state, and FIG. 3B is a view showing a state in which the arm is in an open state. (A) is an enlarged view of an arm portion, and (B) is a cross-sectional view taken along the line CC in (A). It is a side view which shows the state which the arm was removed. It is a figure explaining the procedure of removing an arm.

Hereinafter, the prize acquisition game device (for example, a crane game machine) according to the 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, those having the same function and configuration are designated by the same reference numerals, and the description thereof will be omitted.

First, with reference to FIG. 1, the overall configuration of the crane game machine 100 as an example of the prize acquisition game device to which the present invention can be applied will be described. In the description of the present embodiment, the terms left / right, front / back, and up / down mean left / right, front / back, and up / down based on the state seen by the player of the crane game machine 100 from the front side.

The crane game machine 100 is formed, for example, by a vertically long rectangular parallelepiped shape, and an appropriate number of casters C are attached to the bottom surface. Therefore, the staff of a playground such as a game center can easily carry the crane game machine 100 by pushing it.

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 that covers the upper part of the play field 2.

The base 1 houses, for example, a control board having a control unit that controls the entire crane game machine 100, and by opening the opening / closing door 1a provided on the right side of the front surface of the base 1. You can access the inside. Further, a collection door 1b for collecting coins and coins received by coin selectors 84a and 84b, which will be described later, is provided at the lower center of the front surface of the base 1 so as to be openable and closable.

The play field 2 has a bottom portion 2a on which a large number of prizes P are placed, and an internal space closed by the front plate 2b, the left side plate 2c, the right side plate 2d, the back plate 2e, and the ceiling portion 3 described above is formed. ing. The front plate 2b, the left side plate 2c, and the right side plate 2d are made of a plate-shaped member made of transparent glass or resin so that the internal space can be visually recognized. The front plate 2b is composed of, for example, a sliding door, and the play field 2 can be accessed by opening the sliding door.

A prize discharge port 4 opened in a square shape is provided in the left front corner of the bottom portion 2a of the play field 2, so that the prize P can be discharged downward. The prize P discharged from the prize discharge port 4 falls to the prize take-out chamber 6, and the door body 7 provided on the left side of the front surface of the base 1 is opened to take out the prize P in the prize take-out room 6. You can do it. Here, the door body 7 is made of a plate-shaped member formed of transparent glass or resin, and the inside can be visually recognized through the door body 7. Further, a partition plate 5 is erected on the bottom 2a so as to surround the right end and the rear end of the prize discharge port 4, and the prize P placed or stacked on the bottom 2a is a prize. It suppresses falling from the discharge port 4.

A gripping device 200 that functions as a prize acquisition device is provided above the play field 2, and is suspended by a hanging wire 200a. Although not shown, two vertical rails are provided on the ceiling portion 3 in parallel extending in the front-rear direction near both left and right ends, and one horizontal rail is erected on the two vertical rails. Has been done. The traverse rail is configured to be movable along the extending direction of the traverse rail by a traverse motor. The traversing rail is provided with a wire winding device capable of winding and unwinding the hanging wire 200a so as to be movable in the left-right direction along the extending direction of the traversing rail by a traversing motor. Further, the wire winding device can displace the gripping device 200 attached to the tip of the hanging wire 200a in the vertical direction by winding and feeding the hanging wire 200a. In addition, instead of the hanging wire 200a, a hanging support portion made of a telescopic pipe is provided so as to hang from a traversing rail, and a gripping device 200 is attached to the tip of the hanging support portion to expand and contract the hanging support portion. As a result, the gripping device 200 may be displaced in the vertical direction.

As will be described in detail later, the gripping device 200 includes a main body case 201 to which the hanging wire 200a is attached, an arm mounting portion 202 arranged at the lower part of the main body case 201, and one or a plurality of gripping devices 200 supported by the arm mounting portion 202. It is configured to include the arm 203 of the above. The arm 203 is configured to be displaceable in an open state and a closed state, and can grip the prize P placed on the play field 2.

On the other hand, an operation unit 8 is provided in the center of the front surface of the base 1, and has a box 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 number of remaining playable times, the remaining playable time, and the like. The player moves the gripping device 200 to an arbitrary position in the play field 2 by operating the operation lever 81, and lowers the gripping device 200 and performs a gripping operation by operating the operation button 82. be able to. The gripping device 200 rises when the gripping operation is completed, moves above the prize discharge port 4 while keeping the arm 203 in the closed state, and changes the arm 203 to the open state. At this time, if the prize P is gripped by the gripping device 200, the prize P falls toward the prize discharge port 4 and is guided to the prize taking-out chamber 6, and as a result, the player is guided to the prize taking-out room 6. The prize P can be taken out from. In the present embodiment, the gripping device 200 is configured to operate by operating the operation lever 81 and the operation button 82, but the gripping device 200 is operated only by operating the operation button. It may be configured. For example, it is provided with a horizontal movement button and a vertical movement button. First, the horizontal movement button is operated to move the gripping device 200 in the left-right direction, and then the vertical movement button is operated to move the gripping device 200 in the front-rear direction. , The gripping device 200 may be configured to perform the gripping operation at that location. Further, the configuration may be such that only the operation lever is provided and no operation button is provided. Further, the configuration may not include the display unit 83.

Further, two coin selectors 84a and 84b are arranged side by side on the front surface of the operation unit 8, and the types of coins and medals that can be accepted are different from each other. In the present embodiment, for example, the coin selector 84a is configured to accept only 100-yen coins, and the coin selector 84b is configured to accept only 500-yen coins, but is not limited thereto. The coins and medals received by the coin selectors 84a and 84b are collected, for example, in the collection box at the bottom of the base 1, and collected by the manager of the playground by unlocking the collection door 1b. You can do it. Further, the front surface of the operation unit 8 is configured to be openable and closable. For example, the manager of the playground can perform maintenance of the operation unit 8 by unlocking the operation unit 8 to open the front surface of the operation unit 8. You can do it. Further, instead of the coin selectors 84a and 84b, or in addition to the coin selectors 84a and 84b, a reader / writer device capable of reading payment information from an IC card or a two-dimensional code is provided, and the payment information read by the reader / writer device is provided. It may be configured to allow the acceptance of credits based on.

Next, the configuration of the gripping device 200 will be described with reference to FIGS. 2 to 7.

The gripping device 200 includes a main body case 201 formed in a cylindrical shape, and a hanging wire 200a is fixed to the center of the upper surface. The main body case 201 is provided with a cylinder 204 as an example of a driven member that can be freely displaced from the lower surface along the axial direction of the main body case 201. Further, an arm mounting portion 202 to which one or a plurality of arms 203 can be detachably attached is fixed to the lower end of the cylinder 204. A motor-driven actuator M (see FIG. 5) is housed inside the main body case 201 to drive the cylinder 204 in the vertical direction. The actuator M is not limited to the motor, and a well-known driving means such as a solenoid can be applied.

An annular mounting base 201a is attached to the outer periphery of the main body case 201 at a substantially central portion, and three shaft support members 201b are attached to the mounting base 201a at equal intervals. Each of the mounting bases 201a is bent outward to form a flange. This flange portion swingably supports one end side of the rotation support portion 205, which will be described later.

The arm mounting portion 202 is mounted on, for example, a metal mounting member 202d having a predetermined thickness for mounting the arm 203 extending radially in three directions and the lower surface of the mounting member 202d, and the outer shape follows the mounting member 202d. It is provided with a lower plate member 202b made of plate-shaped metal in shape and an upper plate member 202c made of plate-shaped metal which is attached to the upper surface of the mounting member 202d and has a substantially rice ball shape in which each corner of the triangle is cut off. It is configured.

The mounting member 202d is formed with arm insertion grooves 202e notched laterally at equal intervals, and the arm 203 can be mounted by inserting the arm 203 into the arm insertion groove 202e. It has become. The detailed configuration of the mounting member 202d will be described later. The lower plate member 202b and the upper plate member 202c respectively cover the upper and lower sides of the arm insertion groove 202e of the mounting member 202d to form a housing, and abut on the base end portion of the arm 203 attached to the mounting member 202d to form an arm. The movable range of 203 is regulated. Further, as will be described later, the lower plate member 202b has a function of preventing the arm 203 from being separated from the arm mounting portion 202 due to a load applied to the tip of the arm 203. In the present embodiment, three arm insertion grooves 202e are provided so that three arms 203 can be attached. However, the number of arm insertion grooves 202e formed is not limited to this and can be set arbitrarily. It may be set to any number of 2 or more.

The cylinder 204 is attached to the upper center of the arm attachment portion 202. The arm mounting portion 202 is set to a weight that allows it to move in a direction away from the main body case 201 due to its own weight, but the shape and weight of the arm mounting portion 202 can be appropriately designed.

In this embodiment, three arms 203 are attached to the arm attachment portion 202 at equal intervals. As shown in FIG. 7, the arm 203 is formed by being bent in a substantially U-shape, and the prize P can be gripped and lifted by the tip portions of the plurality of arms 203. The prize P can also be lifted by hooking it on the attached string. The arm 203 has an engaging hole 203a formed at the base end portion and a protruding portion 203b protruding from the lower end portion. Further, an insertion hole 203c is provided at a position (rotational support position) separated from the base end portion by a predetermined distance, is bent toward the tip end side of the insertion hole 203c, and has a tapered shape toward the tip end portion. Further, in the present embodiment, the arm 203 is made of resin, but it may be made of metal.

The arm 203 is configured as described above, and the mounting structure of the arm 203 to the arm mounting portion 202 will be described later. However, when the base end portion of the arm 203 is inserted into the arm insertion groove 202e, the arm insertion groove 202e The arm 203 is pivotally supported inside, and the arm 203 can swing around the base end portion as a support shaft. Further, the arm 203 is pivotally supported by the rotation support portion 205 at the insertion hole 203c so as to be swingable.

The rotation support portion 205 has a plate-shaped first member 205a and a second member 205b whose tip portions extending in the vertical direction are bent in a substantially crank shape, and the first member 205a and the second member 205a. The 205b is rotatably attached to the flange portion of the shaft support member 201b attached to the mounting base 201a so as to be back-to-back by the shaft pin 205c, and is fastened together by the knob screw 205f. When the knob portion 205f1 of the knob screw 205f is operated to rotate the knob screw 205f in the tightening direction, the back surface of the knob screw 205f and the first member 205a firmly sandwich the second member 205b, and the first member 205a and the first member 205a are firmly sandwiched. The two members 205b can swing integrally. A gap is formed in the lower portion of the rotation support portion 205 due to the crank shapes of the first member 205a and the second member 205b, and the arm 203 enters the gap to support the arm 203.

The first member 205a is attached with the back side of the upper end facing the shaft support member 201b, and the body portion 205f2 (see FIG. 6B) of the knob screw 205f is screwed on the inner circumference at the lower center. The boss 205h is projected toward the back side. Further, the lower end portion of the first member 205a has a shaft portion 203d projecting forward, and is inserted into the insertion hole 203c (see FIGS. 6B and 7) provided in the arm 203. Then, it is engaged with the engaging groove 205e of the second member 205b, which will be described later.

The second member 205b is formed with a receiving groove 205g (see FIG. 6) with which the body portion 205f2 of the knob screw 205f can be engaged, at a substantially lower center portion. Further, an engaging groove 205d with which the shaft portion 203c of the first member 205a is engaged is formed at the lower end portion of the second member 205b.

Next, the structure of the mounting member 202d of the arm mounting portion 202 will be described.

As shown in FIG. 4, the mounting member 202d of the arm mounting portion 202 has a substantially triangular shape in a plan view in order to mount the arms 203 at equal intervals, and a pair of balls are attached to the mounting portions of each arm 203. Plungers 202a are provided with their tips facing each other at predetermined intervals, and are capable of engaging with engagement holes 203a formed at the base end of the arm 203 inserted through the arm insertion groove 202e.

Each of the plurality of ball plungers 202a includes a cylindrical casing 202a1 having an open tip, a ball 202a2 provided at the tip of the casing 202a1, and a spring 202a3 housed in the casing 202a1 to press the ball 202a2. Has been done. The casing 202a1 accommodates the balls 202a2, and the inner diameter of the tip thereof is smaller than the diameter of the balls 202a2 so that the balls 202a2 do not separate from the casing 202a1. Further, the spring 202a3 presses the inner bottom of the casing 202a1 and the ball 202a2 to urge the ball 202a2 outward.

Since the mounting member 202d of the arm mounting portion 202 is configured as described above, when the arm 203 is inserted through the arm insertion groove 202e, the ball 202a2 of the ball plunger 202a is moved by the base end portion of the arm 203 to the spring 202a3. When the ball 202a2 of the ball plunger 202a engages from both sides with the engagement hole 203a formed at the base end portion of the arm 203 after entering the inside while pressing against the urging force, the arm 203 becomes the arm mounting portion. Supported by 202. Moreover, since the balls 202a2 of the ball plunger 202a that supports the arm 203 form a sphere, the arm engagement hole 203a is pivotally supported by the ball plunger 202a so that the arm 203 can swing. On the other hand, as will be described later, when a force is applied in the direction in which the arm 203 is pulled out, the ball 202a2 of the ball plunger 202a engaged with the engagement hole 203a by the base end portion of the arm 203 resists the urging force of the spring 202a3. The ball 202a2 is pressed inwardly, and the ball 202a2 is disengaged from the engaging hole 203a, and the engaged state is released. As described above, in the present embodiment, the arm 203 can be easily attached / detached by inserting / removing the arm 203 into the arm mounting portion 202. In the present embodiment, the engagement hole 203a is provided at the base end portion of the arm 203, but any configuration can be adopted as long as it is supported by the ball plunger 202a so as to be swingable. For example, it may be formed by a recess instead of the engagement hole 203a. Further, although the ball plunger 202a is adopted as the one that pivotally supports the engaging hole 203a and makes the arm 203 swingable, the arm 203 can swing and can be inserted and detached by a constant force. As long as it is formed, it may be configured by other means. For example, the tip portion is formed in a hemispherical shape and elastically deforms by inserting the arm 203, and when the engagement hole 203a and the tip portion match, the elastic deformation occurs. The arm 203 may be reconstructed so as to swingably support the arm 203.

As described above, in the present embodiment, the arm mounting portion 202 functions as a part of the main body portion and also functions as an arm holding portion, the pair of ball plungers 202a functions as a pair of holding members, and the arm The engaging hole 203a of 203 functions as a held portion.

In the gripping device 200 configured as described above, when the cylinder 204 is driven in the direction of being pulled upward by the actuator M, as shown in FIGS. 2 (A) and 5 (A), the arm mounting portion 202 becomes Moving upward, the arm 203 swings in the counterclockwise direction (CCW direction) with the shaft portion 205d of the rotation support member 205 as a support axis, the base end portion moves upward, and the tip portion closes. It moves and the arm 203 is closed.

Further, in the gripping device 200, when the cylinder 204 is driven downward by the actuator M, the arm mounting portion 202 moves downward as shown in FIGS. 2 (B) and 5 (B), and the arm 203 moves downward. The shaft portion 205b of the rotation support member 205 swings clockwise (CW direction) as a support axis, the base end portion moves downward, and the tip portion moves in the opening direction, so that the arm 203 is in the open state. .. At this time, the upper side of the base end portion of the arm 203 is in contact with the upper plate member 202c of the arm mounting portion 202, and the protrusion 203b is in contact with the lower plate member 202b of the arm mounting portion 202. The wobbling of the arm 203 can be suppressed in the open state.

At this time, for example, as shown in FIG. 5B, the gripping device 200 moves downward, and the tip end portion of the arm 203 is moved in the arrow E direction by the bottom portion 2a of the play field 2 or the prize P in the play field 2. When pressed, the shaft portion 205d of the rotation support portion 205 serves as a fulcrum F, and a force is applied to the base end portion of the arm 203 in the direction of the arrow L. Therefore, when the lower plate member 202b is not provided, When a constant force is applied to the base end of the arm 203 in the direction of the arrow L, the engagement hole 203a of the base end of the arm 203 is disengaged from the ball plunger 202a and the base end of the arm 203 moves in the direction of the arrow L. , The arm 203 may fall off from the arm mounting portion 202. Therefore, in the present embodiment, the lower open portion of the mounting member 202d is closed by the lower plate member 202b, and the protrusion 203b is provided at the base end portion of the arm 203 so that the protrusion 203b is the lower plate when the arm 203 is open. By contacting the member 202b, the arm 203 is prevented from being separated from the arm mounting portion 202 even when a force is applied to the arm 203 in the direction of arrow E. As described above, in the present embodiment, the lower plate member 202b functions as a contact portion.

The procedure for attaching and detaching the arm 203 in the gripping device 200 configured as described above will be described with reference to FIG.

When removing the arm 203 attached to the arm mounting portion 202, first, as shown in FIG. 8A, the knob portion 205f1 of the knob screw 205f is rotated in the R1 direction to loosen the knob screw 205f. Then, the second member 205b is released from the pressure contact state between the knob portion 205f1 of the knob screw 205f and the first member 205a, and the second member 205b can swing independently along the arrow R2 direction with the shaft pin 205c as a support axis. It becomes. Therefore, when the second member 205b is swung in the CW direction with the shaft pin 205c as a support shaft, the receiving groove 205g and the engaging groove 205e formed in the second member 205b become the body portion 205f2 and the shaft of the knob screw 205f, respectively. The engagement state with the portion 205d is eliminated, and the second member 205b is separated from the first member 205a as shown by the alternate long and short dash line in FIG. 8 (A).

When the arm 203 is moved forward in this state, the shaft portion 205d of the first member inserted into the insertion hole 203c of the arm 203 is separated from the insertion hole 203c, and the arm 203 is supported by the rotation support portion 205. It will be resolved. After that, when the arm 203 is held and pulled out in the direction of arrow D3 with a predetermined force, the engagement state between the pair of ball plungers 202a and the engagement hole 203a is released, and the arm 203 causes the balls 202a2 of the ball plunger 202a to be inside the casing 202a1. As a result, the arm 203 is separated from the arm mounting portion 202 as shown in FIG. 8 (B). In the example shown in FIG. 8, the arm 203 is removed in the open state, but the arm 203 may be removed in the closed state. Further, the arm 203 may be removable only in either the open state or the closed state. For example, the lock mechanism may function in the open state or the closed state to prevent the arm 203 from being removed.

On the other hand, when the arm 203 is attached to the arm attachment portion 202, the arm 203 can be attached to the arm attachment portion 202 by carrying out a procedure opposite to the procedure for removing the arm 203 described above.

That is, when the base end portion of the arm 203 is pushed into the arm insertion groove 202e provided in the mounting member 202d of the arm mounting portion 202 in the direction opposite to the arrow D3 shown in FIG. The ball 202a2 of the ball plunger 202a is pressed by the arm 203 and displaced. After that, when the ball 202a2 of the ball plunger 202a is aligned with the engaging hole 203a of the arm 203, the ball 202a2 is engaged with the engaging hole 203a by the urging force of the spring 202a3.

Next, while moving the arm 203 forward, the shaft portion 205d projecting from the lower part of the first member 205a of the rotation support portion 205 is inserted into the insertion hole 203c of the arm 203.

In that state, when the first member 205a and the second member 205b in the separated state are swung around the shaft pin 205c as a support shaft and aligned with the first member 205a so as to be back-to-back, the second member 205b is formed. The receiving groove 205g and the engaging groove 205e engage with the body portion 205f2 and the shaft portion 205d of the knob screw 205f, respectively. After that, when the knob portion 205f1 of the knob screw 205f is rotated in the R1 direction and tightened, the second member 205b is firmly sandwiched between the knob portion 205f1 and the first member 205a, making it difficult to separate. As described above, the arm 203 can be attached to the arm attachment portion 202.

As described above, in the present embodiment, the replacement work of the arm 203 does not require a tool, and the replacement of the arm 203 can be realized by a simple work.

As described above, according to the present embodiment, the arm 203 for gripping the prize P and the arm mounting portion 202 for opening and closing the arm are provided. A pair of ball plungers 202a for holding the base end portion of the arm 203 are provided at the mounting position of the arm 203 of the arm mounting portion 202, and an engagement hole 203a held by the pair of ball plungers 202a is provided at the base end portion of the arm 203. The pair of ball plungers 202a are provided so as to be engaged and held in the engaging holes 203a, respectively. The pair of ball plungers 202a are urged in directions facing each other, and the balls 202a2 can be displaced against the urging force by being pressed from the opposite sides. When the arm 203 is pulled in the pulling direction, the pair of ball plungers 202a holding the engaging hole 203a are pressed from the opposite side by the arm 203 and displaced, and the ball 202a2 is separated from the engaging hole 203a. 203 is removable from the arm mounting portion 202. When the arm 203 is inserted into the insertion groove 202e of the arm mounting portion 202, the pair of ball plungers 202a are pressed by the arm 203 from the opposite side to displace the balls 202a2, and then the balls 202a2 of the pair of ball plungers 202a When the engagement holes 203a are aligned with each other, the engagement holes 203a are engaged and held by the pair of ball plungers 202a by the urging force of the spring 202a3. As a result, the arm attachment / detachment work can be made easier and the replacement work cost can be reduced.

Further, according to the present embodiment, since the pair of holding members are each composed of the ball plunger 202a, the arm can be easily attached / detached without requiring a special operation.

Further, according to the present embodiment, the lower plate member 202b is provided below the ball plunger 202a that holds the base end portion of the arm 203 in the arm mounting portion 202, and is provided at the lower end of the base end portion of the arm 203. When the protruding portion 203b comes into contact with the lower plate member 202b, the engaging hole 203a is separated from the pair of ball plungers 202a, and the base end portion of the arm 203 is restricted from being displaced downward. As a result, it is possible to prevent a load from being applied to the tip of the arm and a load from being applied to the base end of the arm by the principle of the lever to eliminate the support state.

Further, according to the present embodiment, an insertion hole 203c is provided between the base end portion and the tip end portion of the arm 203. Further, one end of the first member 205a is supported by the shaft support member 201b, and the shaft portion 205d inserted into the insertion hole 203c is projected from the other end portion, and the second member 205b is the first member 205b. An engaging groove 205e that is arranged to face the member 205a and has one end coaxially supported by the shaft support member 201b and is capable of bearing the shaft portion 205d inserted through the insertion hole 203c is provided at the other end. It is provided. The arm 203 can swing with the shaft portion 205d as a support shaft by screwing the first member 205a and the second member 205b in a state where the shaft portion 205d is inserted into the insertion hole 203c and is bearing in the engagement groove 205e. Supported by. As a result, the arm can be supported with respect to the main body with a simple configuration.

Further, according to the present embodiment, a notch to be introduced into the engaging groove 205e is formed from the side end portion of the second member 205b, and the second member is swung with respect to the first member 205a with one end portion as a support shaft. As a result, the shaft portion 205 is configured to be removable with respect to the engaging groove 205e. As a result, the arm can be easily attached and detached.

The actions and effects described in the embodiments of the present invention merely list the most suitable actions and effects resulting from the present invention, and the actions and effects according to the present invention are described in the embodiments of the present invention. It is not limited to what has been done.

In the present embodiment, the arm 203 is supported at two points by the arm mounting portion 202 and the rotation support portion 205 to open and close the arm 203, but even if the arm 203 can be supported at one point, the arm 203 can be opened and closed. Often, for example, the arm 203 may be supported only by the arm mounting portion 202 without having the rotation support portion 205.

Further, in the present embodiment, the protrusion 203b is formed at the lower end of the base end portion of the arm 203 so that the protrusion 203b is in contact with the lower plate member 202b in the open state of the arm 203. It may be configured not to provide. Further, the base end portion of the arm 203 may have a shape different from the shape described above.

Further, in the present embodiment, the lower plate member 202b is provided to prevent the base end portion of the arm 203 from falling off, but the base end portion of the arm 203 may be prevented from falling off by other means.

100 Crane game machine (prize acquisition game device)
200 Gripping device (prize acquisition device)
201 Main body case (main body)
201b Shaft support member (main body)
202 Arm mounting part (main body part / arm holding part)
202a Ball plunger (holding member)
202b Lower plate member (contact part)
203 Arm 203a Engagement hole (held part)
203b Insertion hole 205a First member (first support member)
205b Second member (second support member)
205d Shaft 205e Engagement groove (bearing)

Claims (6)

A prize acquisition device used in a prize acquisition game device, which includes an arm for gripping a prize and a main body for opening and closing the arm.
An arm holding portion for holding the base end portion of the arm is provided at the mounting position of the arm on the main body portion.
A held portion held by the arm holding portion is provided at the base end portion of the arm.
The arm holding unit may have a pair of holding members opposed,
Is configured such that the arm by the holding member before Symbol a pair are engaged respectively engaged with the held portion is held by the arm holding unit,
The pair of holding members are urged in directions facing each other, and are pressed from the opposite side so that they can be displaced against the urging force.
When the arm is pulled in the pulling direction, the pair of holding members holding the held portion are pressed from the opposite side by the arm to be displaced and separated from the held portion, so that the arm is moved. Detachable from the arm holder,
When the arm is inserted into the arm holding portion, the pair of holding members are pressed and displaced from the opposite side by the arm, and then when the pair of holding members and the held portion are aligned, an urging force is applied. A prize acquisition device characterized in that the held portion is engaged and held by the pair of holding members. The prize acquisition device according to claim 1, wherein each of the pair of holding members is composed of a ball plunger. A contact portion is provided below the arm holding portion in the main body portion, and when the lower end of the base end portion of the arm abuts on the corresponding contact portion, the held portion is separated from the pair of holding members. The prize acquisition device according to claim 1 or 2, wherein the base end portion of the arm is restricted from being displaced downward. An insertion hole is provided between the base end portion and the tip end portion of the arm.
With the first shaft supporting portion which is pivotally supported by the front Stories body portion is provided at one end, a first support member shaft portion protruding from the other end portion to be inserted into the insertion hole,
It arranged opposite to the first support member, with a second shaft supporting portion which is pivotally supported on the main body portion in said first shaft support coaxial with the first support member is provided at one end, the insertion has the shaft portion inserted through the hole bearing possible bearing portion and a second supporting member provided at the other end,
The arm the shaft portion by the shaft portion is the insertion hole inserted through the screw and the second support member and the first supporting member while being bearing to the bearing part fastened to a supporting shaft The prize acquisition device according to any one of claims 1 to 3, wherein the bearing is swingably supported. A notch for introducing the shaft portion into the bearing portion is formed from the side end portion of the second support member.
4. The fourth aspect of the present invention is characterized in that the shaft portion is configured to be removable from the bearing portion by swinging the second support member with the second shaft support portion as a support shaft. The described prize acquisition device. A prize acquisition game device including the prize acquisition device according to any one of claims 1 to 5.

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