JP2003220258A - Lock device for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent with a simple configuration a lock device from being unlocked by an illegal operation in the lock device by which a front surface frame is locked with respect to an outer frame. <P>SOLUTION: A game machine includes: an outer frame F<SB>1</SB>for covering the circumference; and a front surface frame F<SB>2</SB>which has a game surface to be viewed by a player and is connected to the outer frame F<SB>1</SB>by hinges so as to be opened by a single swing. The lock device of the game machine comprises: a first lock board (lock board member) 12 which is attached to the rear surface end edge of the opening end of the front surface frame F<SB>2</SB>so as to be vertically movable within a vertical plane orthogonally crossing the game surface and so as to be substantially orthogonally crossing the game surface of the front surface frame F<SB>2</SB>via an attachment board (attachment member) 11 of a nearly L shape cross section; a pair of first hook pieces (hook members) 19 which are respectively arranged at both upper and lower ends of the first lock board 12; and a pair of engagement pieces 7 which are disposed in the outer frame F<SB>1</SB>and engaged with the pair of first hook pieces 19. The front surface frame F<SB>2</SB>is opened by a single swing with respect to the outer frame F<SB>1</SB>by releasing the engagement of the first hook pieces 19 with the engagement pieces 7. The first hook pieces 19 are connected to the first lock boards 12 so as to be rotatable in an energized state in the engagement direction with the engagement pieces 7. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention locks the outer frame and the front frame by inserting a wire such as a piano wire through a gap between the outer frame and a ball lending device of an adjacent gaming machine. The present invention relates to a locking device of a gaming machine for unlocking the existing locking device and preventing the front frame from being illegally opened.

[0002]

2. Description of the Related Art As a locking device for preventing an opening of a front frame, which is hinged to the outer frame so as to be able to open one side, with respect to an outer frame constituting a gaming machine, a rear end of an open end of the front frame A lock plate member that is attached to the edge substantially orthogonally to the game surface of the front frame via a mounting member having a substantially L-shaped cross section so as to be vertically movable in a vertical plane orthogonal to the game surface, and the lock plate member. A pair of hook members respectively provided on both upper and lower ends of the pair of hook members, and a pair of engaging pieces provided on the outer frame so as to be engageable with the pair of hook members. There is known a structure in which the front frame can be opened with respect to the outer frame by releasing the engagement with the piece.

FIG. 9 is a right side view of the upper end portion of the conventional locking device having the above structure. In this conventional lock device, hook pieces 62 are integrally provided at the upper and lower ends of the lock plate 61, respectively. Therefore, the wire W having rigidity such as a piano wire is inserted through the gap between the outer frame F ₁ and the ball lending device of the adjacent gaming machine, and the hook portion Wa at the tip of the wire W is
When hooked on the engaging portion 62a of the upper hook piece 62 and pulling the wire W downward or obliquely downward, as shown by the solid line in FIG. 9, the pair of hook pieces 62 are integrally formed on the upper and lower ends. The lock plate 61 formed is moved downward to move to the outer frame F.
_The engagement between the engaging piece 63 provided at ₁ and the hook piece 62 is released, and the locking device is unlocked illegally. Thus, being opened front frame F ₂ relative to the outer frame F _1, may be ROM or the like in the control box mounted on the back side of the front surface frame F ₂ is replaced illegally. In FIG. 8, 64
Is a mounting plate having an L-shaped cross section in which the lock plate 61 is mounted on the front frame F ₂ , and F ₃ is a glass frame mounted so as to be openable with respect to the front frame F ₂ .

Further, Japanese Utility Model Publication No. 4-32150 discloses another structure of the above locking device. In this locking device, a pair of hook members are rotatably supported via rotating pins on the upper and lower ends of a standing plate portion that is substantially orthogonal to the game surface of the front frame of a mounting member having a substantially L-shaped cross section. , An operation of an unlocking unit composed of a cylinder lock, in which another portion of the pair of hook members is rotatably connected to upper and lower ends of a lock plate member that moves up and down along the mounting plate portion via a connecting pin. By moving the lock plate member up and down by the above, the pair of hook members are simultaneously rotated about each fulcrum pin to release the engagement with the engagement piece attached to the outer frame, thereby The front frame is unlocked so that the front frame can be opened.

In the lock device described in the above publication, the pair of hook members are rotatably attached to the upright plate portion of the attachment member via a fulcrum pin, and the connecting pin is provided at a portion different from the fulcrum pin. Since it is connected to the lock plate member via the lock plate member, if one hook member is rotated by an erroneous operation, the lock plate member moves and the other hook member is rotated in the same direction. The engagement between the hook member and the engaging piece of the outer frame is released. As a result, simply turning one of the hook members,
There is a problem in that the locking of the front frame with respect to the outer frame is unlocked and the front frame is illegally opened.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to prevent a lock device for locking a front frame from an outer frame from being unlocked by an unauthorized operation with a simple structure. There is.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 has an outer frame for covering the periphery and a game surface seen by a player, and the outer frame has a piece. In a gaming machine having a front frame that is hinged to be openable,
Attached to the rear end edge of the open end of the front frame substantially orthogonally to the game surface of the front frame via a mounting member having a substantially L-shaped section so as to be vertically movable in a vertical plane orthogonal to the game surface. A lock plate member, a pair of hook members provided at both upper and lower ends of the lock plate member, and a pair of engaging pieces provided on the outer frame so as to be engageable with the pair of hook members. A lock device for a gaming machine, comprising: the hook member and the engaging piece being disengaged from each other so that the front frame can be opened with respect to the outer frame. It is characterized in that the lock plate member is rotatably connected to the lock plate member in a state of being biased in a direction of engaging with the joint piece.

According to the first aspect of the present invention, a wire such as a piano wire is hooked on the hook member by a fraudulent act, and the hook member rotates in a direction opposite to the direction in which the hook is maintained in the engaged state with respect to the engaging piece. Even when moved, since the hook member is rotatably connected to the lock plate member, the lock plate member does not move in the vertical direction, and the hook member and the engagement piece do not move. While maintaining the engaged state, the hook member comes into contact with the engaging piece and cannot rotate in the opposite direction beyond the corresponding contact position. Therefore, the lock device that locks the front frame with respect to the outer frame cannot be unlocked, and the illegal act can be effectively prevented.

According to a second aspect of the present invention, in the first aspect of the invention, in the engaged state of the hook member and the engaging piece, the hook member is rotated in a direction to release the engaged state. At this time, a portion of the hook member different from the engaging portion for the engaging piece is brought into contact with the engaging piece to prevent the hook member from rotating in the same direction. It has a feature.

According to the second aspect of the present invention, when the hook member is rotated with respect to the engaging piece in the direction for releasing the engaged state, a portion different from the engaging portion of the hook member is the outer frame. Since it abuts against the engaging piece attached to the, the above-described action of the invention of claim 1 is more reliably exhibited.

The invention of claim 3 is the same as claim 1 or 2.
In the above, each of the hook members is configured to be independently rotatable.

According to the third aspect of the present invention, unless the pair of hook members are disengaged from the engaging pieces at the same time, the front frame locking device cannot be unlocked from the outer frame. Even if the engagement with only one engagement piece is released, the unlocking of the locking device is impossible. Therefore, the effect of preventing fraud is further enhanced.

The invention of claim 4 is characterized in that the means for urging the hook member in the engaging direction with respect to the engaging piece is a tension spring.

By a simple member such as a tension spring, the hook member is unnecessary when the front frame is closed and locked while the engagement posture of the hook member is maintained and the front frame is opened with respect to the outer frame. The normal standing posture can be maintained without turning to the right.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to embodiments.
Will be described in more detail. FIG. 1 shows a glass frame F. ₃Closed
Ma front frame F₂2 is a perspective view showing a state in which the
Is the front frame F ₂Device L mounted on the back side of the open end of the
FIG. 3 is a similar schematic perspective view in a state where FIG.
4 is a side view of a portion of the locking device L of the pachinko machine, and FIG.
Is the first and second lock devices L that make up the lock device L.₁, L
₂FIG. 5 is a perspective view of the upper end portion of FIG.
First lock device L₁Side view showing the state where unlocking is prevented
FIG. 6 is a schematic plan view of the lock device L.

In FIGS. 1 and 2, a rectangular frame-shaped outer portion
Frame F₁At the upper and lower ends of the left end of the
Before the game board (not shown) is installed
Face frame F₂Is the outer frame F₁Hinge on each hinge connecting plate 1
It is hinged via a pin 2 so that it can be opened. Well
Front frame F₂The front frame F is₂Attached to
To make only the game area of the game board visible to the player
Glass frame F₃Is hinged so that it can be opened as well
Has been done. Glass frame F₃See through the game board on its back
In order to make it possible, a substantially circular opening 4 is provided in its central portion.
Has been. Then, as shown in FIG. 1, the front frame F₂
On the open end side of the front of the car
3 at a position substantially the same height as the first and second locks described later.
Setting L₁, L ₂An unlocking unit consisting of a cylinder lock for unlocking
The knit 5 is provided with the key insertion hole exposed on the front surface.
Has been.

Next, referring to FIG. 3 to FIG.
And second lock device L₁, L₂The lock device L consisting of
Reveal First lock device L₁Is the outer frame F₁Against front frame F
₂For locking the second lock device L₂Is before
Face frame F₂Against the glass frame F ₃To lock the
The invention (present invention) of claim 1 is the first lock device L.₁Carried out in
Has been. As shown in FIG. 2, the locking device L has a front frame.
F₂Back of the open end side (the side opposite to the hinge connection side)
It is attached to the surface along the vertical direction. That is, the front frame
F₂A mounting plate 11 having an L-shaped cross section is provided on the back surface of the
It is fixed along the downward direction and is attached to the back surface of the mounting plate 11.
A second locking device, which will be described later, is attached to the fixed plate portion 11a that is closely fixed.
L₂If the second lock plate 41 of the above is supported so as to be vertically movable,
The inner surface (engaging piece) of the upright plate portion 11b of the mounting plate 11.
Outer frame F to which 7 is fixed₁On the surface facing the vertical frame member 6)
Is the first lock device L₁Similarly, the first lock plate 12 can be moved up and down.
Supported by. The first lock plate 12 has a front frame F.₂To
Based on the board surface (game surface) of the mounted game board,
It is arranged almost perpendicular to the board.

Further, vertical slit-like guide holes 14 are formed in a total of three places including the upper and lower ends of the first lock plate 12 and are provided in the standing plate portion 11b of the mounting plate 11. By fitting the headed guide pins 15 into the guide holes 14, the first lock plate 12 is supported so as to be vertically movable with respect to the upright plate portion 11b of the mounting plate 11. Further, as shown in FIGS. 4 and 5, the lower part of the guide hole 14 at the upper end of the first lock plate 12 is cut and raised to form the hook piece 16, and the fixing plate portion of the mounting plate 11 is also formed. A portion of the ascending end position 11a further above the hook piece 16 is cut and raised to form a hook piece 17, and both ends of the tension spring 18 are hooked on the hook pieces 16 and 17, respectively. Therefore, the first lock plate 12 is biased upward by the restoring force of the tension spring 18, but the lower end of the guide hole 14 contacts the headed guide pin 15 to cause the first lock plate 12 to move. The rising end position of is determined.

The upper and lower ends of the first lock plate 12 are
The part where the id hole 14 is provided is wider than other parts
Is formed into a hook piece supporting portion 12a,
Each hook piece supporting portion 12a has a base end of the first hook piece 19 respectively.
The part is rotatably supported via a fulcrum pin 21.
The pair of upper and lower first hook pieces 19 is provided on the front frame F.₂When closing
Outer frame F₁Engaging piece fixed to the corresponding portion of the vertical frame member 6
7 and the outer frame F ₁Against front frame F₂Lock
It is a part. The engaging plate 7 has a fixing plate 8 at its base end.
Formed by folding together and shown in FIG.
As described above, the outer frame F is inserted through the fixing plate 8.₁Of the vertical frame material 6
It is fixed vertically to the side. The first hook piece 19
Is an upward slope from the free end to the fulcrum
And the inclined sliding surface 22 is formed.
Between the sliding surface 22 and the fulcrum part, an engaging plate standing upright is provided.
A portion 23 is formed, and the inclined sliding surface 22 and the engaging plate portion are formed.
23 and the outer frame F₁To the engaging piece 7 fixed to
And an engaging groove 24 that can be engaged is formed. Also, the figure
5, outside the upper end of the engaging plate 23
On the side of the engaging groove 24 of the
ing.

From the bottom surface of the engaging groove 24, the engagement
The length between the mating protrusions 23a is equal to the outer frame F. ₁Engagement fixed to
It is longer than the vertical length (height) of the piece 7.
Therefore, as shown by the chain double-dashed line in FIG.
The engaging plate 23 of 19 becomes substantially vertical, and its engaging groove 24
Outer frame F₁When the engaging piece 7 of is engaged,
The first hook piece 19 is arranged so that the free end of the first hook piece 19 is lowered.
Is rotated around the fulcrum pin 21, the solid line in FIG.
As shown by, the engaging protrusion 2 at the upper end of the engaging plate 23
3a is the outer frame F₁Abuttingly engages with the upper end of the engaging piece 7 of
The position of the one hook piece 19 is referred to as "engaging piece contact position"),
The first hook piece 19 moves in the same direction beyond the engagement piece contact position.
It is not rotatable.

Further, both end portions of the tension spring 28 are attached to the hook pieces 26 and 27 formed by cutting and raising the upper end portion of the first lock plate 12 and the upper end portion of the engaging plate portion 23 of the first hook piece 19, respectively. Hook part 1 of the first lock plate 12
First stopper piece 29 formed by cutting and raising the upper end of 2a
The base end portion of the engaging plate portion 23 of the first hook piece 19 can be brought into contact with the first hook piece 1 and the restoring force of the tension spring 28 allows the first hook piece 1 to move.
When the engaging plate portion 23 of 9 abuts on the first stopper piece 29, the first hook piece 19 is not swingable and stands still at the standing position. For this reason,
The first hook piece 19 rotatably supported by the first lock plate 12.
In the locked state in which the outer frame F _{1 and} the engagement piece 7 of the outer frame F ₁ are engaged,
In order to unlock it and open the front frame F ₂ , as shown in FIG. 7, a key is inserted into the unlocking unit 5 and rotated in a predetermined direction to lower the first lock plate 12. By moving the engaging pieces 7 of the outer frame F ₁ out of the engaging groove 24 of the first hook piece 19 relatively to release the engagement of both, the front frame F
₂ it is only necessary to rotate the front side around the hinge pin 2 (the side of the player). The strength (spring constant) of the tension spring 28 is determined from the viewpoint of preventing fraud, which will be described later, and its details will be described later.

Further, the lower end of the hook piece supporting portion 12a of the first tablet plate 12, the second stopper piece 31 formed by cutting and raising the portion is provided in a state in which the front frame F ₂ is open , At the position where the first hook piece 19 slightly exceeds the engagement piece contact position, the lower end surface of the first hook piece 19 contacts the second stopper piece 31 to cause the engagement piece contact position. At the position slightly above, the first hook piece 19 is
In FIG. 5, the structure is such that it does not rotate clockwise. For this reason, as shown in FIG. 8, when the front frame F ₂ is opened in a half-opened state, when the front frame F ₂ is closed, a pair of upper and lower first hook pieces 19 are provided.
The inclined sliding surface 22 of the tip (free end) of the contact plate slides against the lower end of each engaging piece 7 of the outer frame F ₁ to attach the mounting plate 1.
The first lock plate 12 moves downward with respect to 1, and the slidable sliding surface 22 and the engaging piece 7 are released from the sliding contact at the formation end of the slanted sliding surface 22 on the engagement groove 24 side. Then, the tension spring 18
The first locking plate 12 instantaneously moves upward with respect to the mounting plate 11 due to the restoring force of the engaging plate 24 and the engaging grooves 24 of the pair of upper and lower first hook pieces 19 are engaged.
The engaging pieces 7 of the outer frame F ₁ are relatively inserted into each other, and both are engaged and locked.

Next, briefly described secondary lock device L ₂ to lock the glass frame F ₃ to the front frame F _2. A second lock plate 41 is attached to the fixed plate portion 11a of the mounting plate 11 by the same support structure (engagement structure of the guide hole 42 and the headed guide pin 43) of the first lock plate 12 with respect to the standing plate portion 11b. It is movably supported. On the back surface of the open end of the glass frame F ₃ , a plurality of (usually three) second hook pieces 44 are provided at predetermined intervals along the vertical direction.

On the other hand, as partially shown in FIG. 4, a position corresponding to the position of each second hook piece 44 of the glass frame F ₃ in the fixed plate portion 11a of the mounting plate 11 and the second lock plate 41. The first and second insertion holes 45 and 46 through which the second hook piece 44 is inserted are respectively formed in the. The length in the up-down direction of the first insertion hole 45 is slightly larger than that of the second insertion hole 46, and the lower ends of the first and second insertion holes 45, 46 substantially match, When the second hook piece 44 is inserted through the insertion holes 45 and 46, the engagement portion 44a formed at the upper end of the second hook piece 44 is the upper end of the second insertion hole 46 of the second lock plate 41. Is engaged and locked.

In this locked state, the key inserted in the unlocking unit 5 is rotated in the direction opposite to the direction in which the front frame F ₂ is unlocked, or the second lock plate 41 is attached to the back side of the pachinko machine. When the push-up lever 47 (see FIG. 2 and FIG. 3) provided integrally is pushed up, the second lock plate 41 and the second hook piece 44.
The engagement with and is released and unlocked. It should be noted that the second lock plate 41 includes the second lock plate 41 and the mounting plate 1.
It is urged downward by the restoring force of the tension spring 48 (see FIG. 3) whose both ends are connected to the first fixed plate portion 11a.

The operation of locking and properly unlocking the first and second lock devices L ₁ and L ₂ is as described above. Here, as shown in FIG. 5, a wire W such as a piano wire is inserted through the gap between the outer frame F ₁ of the pachinko machine and the ball lending device of the adjacent pachinko machine, and the tip of the wire W is pulled. With the hanging portion Wa inserted in the engagement groove 24 of the first hook piece 19 of the first locking device L ₁ and hooked, the wire W is pulled obliquely downward toward the back, and the first hook piece 19 and If the user tries to unlock the key by releasing the engagement with the engaging piece 7, the first
The hook piece 19 rotates clockwise around the fulcrum pin 21, and the engaging projection 23a at the tip of the engaging plate portion 23 abuts and engages with the upper end portion of the engaging piece 7, and Beyond the first hook piece 19
Are prevented from rotating in the same direction. This makes the first
The downward movement of the lock plate 12 is prevented, and the first hook piece 19 and the engaging piece 7
The engaged state (locked state) of is maintained, and unauthorized unlocking can be prevented.

Here, since the position of the fulcrum pin 21 of the first hook piece 19 is deviated more largely than the position of its center of gravity,
If it is left as it is, it is rotated slightly clockwise by the clockwise rotation moment, and the engaging projection 23a of the first hook piece 19 is rotated.
May always engage with the upper end of the engaging piece 7. The tension spring 28 is provided to prevent this problem.
Always maintain the standing posture of the first hook piece 19, and the first hook piece 1
It is provided so that the engagement between the engagement piece 9 and the engagement piece 7 can be released (unlocked) properly. Therefore, the strength (spring constant) of the tension spring 28 is determined from the above point of view. Specifically, when the above-mentioned tampering operation is performed, the first hook piece 19 is directly lowered. The size is determined so that the fulcrum pin 21 can be rotated without moving.

Further, in the above embodiment, a pair of upper and lower first
Since the hook pieces 19 are configured to rotate independently of each other with respect to the first lock plate 12, the disengagement of both the first hook pieces 19 from the upper and lower engagement pieces 7 is simultaneously performed. If not, the first locking device L ₁ will not be unlocked. Therefore, unless the unauthorized operator simultaneously releases the engagement between the pair of upper and lower first hook pieces 19 and the engaging pieces 7, the unauthorized unlocking cannot be performed, and the preventive effect is enhanced.

[0029]

According to the present invention, the hook member constituting the lock device is
Since it is rotatably connected to the lock plate member in a state of being biased in the direction of engaging with the engagement piece fixed to the outer frame,
Even if the hook member is hooked with a wire such as a piano wire and the hook member is rotated in a direction opposite to the direction in which the engaging piece is maintained in the engaged state due to an illegal act, the hook member is locked. Since the lock plate member is rotatably connected to the plate member, the lock plate member does not move in the vertical direction, and the locking state is maintained while the hook member and the engagement piece are maintained, that is, the locking member is locked. In the state as it is, the hook member comes into contact with the engagement piece, and the hook member cannot rotate in the opposite direction beyond the contact position. Therefore, the lock device that locks the front frame with respect to the outer frame cannot be unlocked, and the illegal act can be effectively prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a front frame F ₂ is opened with a glass frame F ₃ being closed.

FIG. 2 is a similar schematic perspective view in which a lock device L mounted on the rear surface side of the open end of the front frame F ₂ can be seen.

FIG. 3 is a side view of a portion of a lock device L of the pachinko machine.

FIG. 4 shows first and second lock devices L constituting the lock device L.
₁ is a perspective view of the upper end portion of the L _2.

FIG. 5 is a side view showing a state in which unlocking of the first lock device L ₁ is prevented by an unauthorized operation.

6 is a schematic plan view of a lock device L. FIG.

FIG. 7 is a side view of the first locking device L _{1 in} an unlocked state.

FIG. 8 is a side view of the first locking device L _{1 in} the middle of locking.

FIG. 9 is a right side view showing a state in which the conventional locking device is unlocked illegally.

[Explanation of symbols]

F ₁ : Outer frame F ₂ : Front frame L ₁ : First locking device (locking device) 7: Engaging piece 11: Mounting plate (mounting member) 12: First locking plate (locking plate member) 19: First hook Piece (hook member) 21: fulcrum pin 23: engaging plate portion 23a of the first hook piece: engaging protrusion 28: tension spring (biasing means of the first hook piece)

Claims (4)

[Claims] 1. A gaming machine comprising an outer frame that covers the periphery and a front frame that has a game surface that is seen by a player and that is hinged to the outer frame so that it can be opened in one direction. A lock plate member that is attached to the rear end edge of the open end so as to be vertically movable in a vertical plane orthogonal to the game surface via a mounting member having a substantially L-shaped cross section and substantially orthogonal to the game surface of the front frame. And a pair of hook members respectively provided on the upper and lower ends of the lock plate member, and a pair of engaging pieces provided on the outer frame so as to be engageable with the pair of hook members, A locking device for a gaming machine, wherein the front frame can be opened with respect to the outer frame by disengaging a hook member and the engagement piece, wherein the hook member engages with the engagement piece. The lock plate member is rotatably connected to the lock plate member in a biased direction. Lock device of the game machine to be. 2. When the hook member is engaged with the engaging piece, the hook member engages with the engaging piece when the hook member is rotated in a direction of releasing the engaged state. The locking device for a gaming machine according to claim 1, wherein a part different from the mating part is in contact with the engaging piece to prevent the hook member from rotating in the same direction. . 3. The lock device for a gaming machine according to claim 1, wherein each of the hook members is configured to be independently rotatable. 4. The locking device for a gaming machine according to claim 1, wherein the means for urging the hook member in the engaging direction with respect to the engaging piece is a tension spring. .