JP2003135809A - Locking device for game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device for a game machine capable of smoothly, surely, and easily locking/unlocking to a metal fitting and preventing illegal operation such as unauthorized unlocking. SOLUTION: This locking device for the game machine is provided with a hook member journaled around a supporting shaft arranged to the upper part and the lower part of a supporting board in a base frame body and capable of turning between the locking position and the unlocking position according to a slide of a locking lever. A cutout receiving the receiving metal fitting is arranged in one side edge of the hook member. A hook claw part is formed on the tip side of the hook member by the cutout, and the cutout side of the hook claw part serves as a circular arc engagement edge around the axial center of the supporting shaft. The contact point between the engagement edge of the hook member in the locking position of the hook member and the tangent parallel to the sliding direction of the locking lever is set to be positioned on a straight line crossing the sliding direction of the locking lever at right angles and passing through the axial center of the supporting shaft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for locking a front frame of a gaming machine with respect to a main frame. More specifically, the present invention is a locking device suitable for locking and unlocking a front frame of a gaming machine exemplified by pachinko, pachi-slot, slot machine, smart ball, and arrange ball with respect to a main frame. It is about.

[0002]

2. Description of the Related Art A front frame of a gaming machine has one end fixed to a main frame by a hinge, and the other end is a free end which is rotatable with respect to the main frame. A locking device that enables locking with a metal fitting provided on the body frame is attached.

Conventionally, for example, registered utility model No. 250
A locking device having a structure as described in Japanese Patent No. 8452 is known, which is shown in FIG. In FIG. 16, the receiving fitting, the front frame, and the body frame are also shown. This locking device 70
The locking rod 74 is arranged inside the base frame 73 in which the supporting plate 72 is erected on the side of the vertically long mounting plate 71 so as to be slidable up and down along the supporting plate 72. Is urged in the locking direction by a tension spring 75, and hook members 77 and 77 pivotally supported about supporting shafts 76 and 76 provided on the upper and lower portions of the support plate 72, and a locking rod 74. The upper and lower ends are connected by connecting pins 78, 78, respectively, and the mounting plate 71
It has a structure in which a cylinder lock 79 is attached to an intermediate portion of the. Then, the guide pin 80 is inserted into the long hole 81 formed in the locking rod 74 and fixed to the support plate 72, and the locking rod 74 is guided by the guide pin 80, whereby the locking rod 74 is supported. It is designed to slide up and down along.

In a gaming machine provided with such a locking device, a front frame 82 is set with a hinge (not shown) as a fulcrum.
When is closed with respect to the main body frame 83, the hook member 77 comes into contact with the receiving metal fitting 84 provided on the main body frame 83, the hook member 77 rotates upward, and the locking rod 74 slides downward.
Then, the tip of the hook claw 77a of the hook member 77 is attached to the receiving fitting 8
When the upper edge of No. 4 is crossed, the locking rod 74 is pulled by the tension spring 75.
The locking member returns to the locking position by the restoring force, and the hook member 77 is engaged with the receiving metal fitting 84, and the front frame 82 is locked to the main body frame 83.
Then, a key (not shown) is inserted into the cylinder lock 79, the cam plate 87 is rotated in the unlocking direction by a key operation, the locking rod 74 is slid downward, and the hook member 77 is rotated upward. The engagement between the receiving metal fitting 84 and the hook member 77 can be released, and the front frame can be opened using the hinge as a fulcrum.

The engagement relationship between the hook member 77 and the receiving metal fitting 84 of the locking device 70 will be described in more detail.
Here, the upper and lower hook members 77, 77 and the receiving fitting 8
Since the engagement relationship with the Nos. 4 and 84 is the same, the description will be given based on the upper hook member and the receiving fitting, and the description of the lower hook member and the receiving fitting will be omitted. FIG. 17 is a partially enlarged explanatory view showing the relational structure between the upper part of the locking device and the receiving metal fitting. For the sake of convenience, the illustration of the body frame and the front frame is omitted. As shown in FIG. 17, the hook member 77 is provided with a substantially trapezoidal notch 77b at its lower edge, and the notch 77b forms a hook claw portion 77a at the tip end side of the hook member 77. The notch side is a linear engagement edge 77c, and the engagement edge 77c of the hook member 77 at the locking position.
Is parallel to the sliding direction X of the locking rod (that is, a straight line Y orthogonal to the sliding direction X of the locking rod and passing through the axis of the support shaft 76).
And (orthogonal) are set. The depth of the notch 77b, that is, the bottom edge 77d of the notch 77b is the straight line Y.
Spans a depth beyond.

The receiving metal fitting 84 is plate-shaped, and in the locked state, as shown in FIG. 17, the upper edge of the receiving metal fitting 84 contacts the bottom edge 77d of the notch 77b of the hook member 77 or the vicinity of the bottom edge 77d. Thus, the receiving metal fitting 84 and the engaging edge 77c of the hook member 77 are engaged with each other, and in the locked state, the force forcibly opening the front frame is resisted.

In order to lock the hook member 77 by engaging the receiving metal fitting 84 with the receiving metal fitting 84 or unlocking the hooking member 77 by disengaging the receiving metal fitting 84, the hook member 77 has a solid line and a chain double-dashed line in FIG. It is necessary to be able to rotate as shown by, that is, it is necessary to provide a gap t between the receiving metal fitting 84 and the hook claw 77a in the locked state so that the hook member 77 can rotate about the support shaft 76. On the other hand, the gap t functions as a play between the main body frame and the front frame, and depending on the size of the play, for example, a strip-shaped thin steel plate having a hook formed at the tip or a hook formed by bending the tip is formed. Insert the operation tool such as the piano wire that has been inserted from between the play, and attach the tip of the hook to the hook member 77.
When the hook member 77 is rotated around the support shaft 76 in the unlocking direction, the engagement between the receiving metal fitting 84 and the hook member 77 can be released, and the front frame 82 can be opened with the hinge as the fulcrum. You can do it. In this way, the front frame 82
When is opened, it becomes possible to operate the devices and parts arranged on the back surface of the front frame 82, the ROM for controlling these devices and parts and controlling the winning ratio of the gaming machine can be used in the rear R
Unauthorized operation such as exchanging with OM is possible. Since the gap t needs to be increased as the depth of the notch 77b of the hook member 77 to the bottom edge 77d is increased, the backlash is also increased.

The receiving metal fitting 84 is attached to the main body frame so that the amount of play is less than necessary, or the locking device 70 is attached to the front frame or the receiving metal fitting 84 is attached to the main body frame. When the gap t between the receiving metal fitting 84 and the claw 77a becomes insufficient due to an error or the like, the state is incompletely locked as shown in FIG. 18, and in this state, the front frame is forcibly opened. When a force acts, the engagement point between the hook member 77 and the receiving metal fitting 84 gradually shifts, and the hook member 77 rotates in the unlocking direction around the support shaft 76, and the engagement is released even with a relatively small force. , The front frame will open.

Therefore, when assembling the game machine, etc., the gap t between the receiving metal fitting 84 and the hook member 77 at the time of locking can be adjusted to an appropriate gap t, assuming that the gap t is insufficient or excessive. In addition, the plate thickness of the receiving metal fitting 84 is set so that it can be bent with pliers or the like. However, when it is necessary to bend the receiving metal fitting 84 with pliers or the like to adjust the gap t, when the front frame is closed, the relationship between the receiving metal fitting 84 and the hook member 77 is that the front frame interferes and the front frame interferes directly. I can't confirm. The adjustment of the gap t is performed by opening the front frame, but it is inevitable to rely on a can, which tends to be inaccurate, and it is necessary to repeat the adjustment until the proper gap t is obtained, which is troublesome. It will result in higher costs.

Further, as described above, since the receiving metal plate is thick enough to be bent by a tool such as pliers, it cannot be said that the receiving metal member has sufficient strength. Forcibly opening it for the purpose of
The bracket will be deformed relatively easily and the front frame will be opened.

As shown in FIG. 19, the notch 7 of the hook member 77.
Assuming that the depth of 7b is reduced to a depth up to a straight line Y that is orthogonal to the sliding direction X of the locking rod 74 and that passes through the axis of the support shaft 76, a gap t (that is, play) as shown in FIG. Even if it is not provided between the catch metal fitting 84 and the hook claw 77a, as shown by the solid line and two-dot chain line in FIG.
Can be locked by engaging with, or unlocked by disengaging from the receiving fitting 84. However, since the notch 77b of the hook member 77 is shallow, the engagement with the receiving fitting 84 in the locked state tends to be insufficient. If the tip of the claw 77a is extended downward as shown in FIG. 20, the engagement between the receiving metal fitting 84 and the hook member 77 in the locked state is sufficient, but the hook member 77 becomes large and the cost increases.

By the way, the conventional locking device 70 is shown in FIG.
As shown in FIG. 3, the support plate 72 has a connecting pin 78 so that the hook member 77 connected to the locking rod 74 does not interfere with the rotation about the shaft center of the support shaft 76 due to its structure. It is necessary to form a curved long hole 90 for releasing the caulked portion, and in assembling the locking device 70, the support shaft 76 is inserted into the shaft hole 91 of the hook member 77 and the support shaft 76 is inserted. It is necessary to caulk to the support plate 72 and to caulk and connect the hook member 77 and the locking rod 74 with the connecting pin 78, which requires many steps in manufacturing. Further, in such a structure, unless the axis line of the support shaft 76 that allows the hook member 77 to rotate and the axis line of the connecting pin 78 that connects the hook member 77 and the locking rod 74 are parallel to each other. Since an unreasonable force is required for the rotation of the member 77 and / or the sliding of the locking rod 74 or the member is squeezed, the hook member 7
7 is not smoothly engaged with the receiving fitting 84,
It has been pointed out that the engagement state is insufficient and it is difficult to smoothly unlock the keys.

[0013]

DISCLOSURE OF THE INVENTION The invention of this application was created as a result of earnest research in view of the above-mentioned circumstances, and locking or unlocking with a receiving metal fitting is smooth and reliable, and A locking device for a gaming machine that can be easily performed, in particular, locking and unlocking with a receiving metal fitting is smooth and reliable, and in addition to being easy to perform, it can also prevent unauthorized operations such as unauthorized unlocking. An object of the present invention is to provide a locking device for a gaming machine.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a locking rod vertically arranged along the support plate inside a base frame body in which a support plate stands on the side of a vertically long mounting plate. Is slidably disposed on the support plate, the locking rod is biased in the locking direction by a tension spring, and the mounting plate is attached to a front frame that can be opened and closed with respect to the main body frame. A hook member pivotally supported around a provided support shaft and rotatable between a locking position and an unlocking position in association with the sliding of the locking rod is engaged with a metal fitting attached to the body frame. When the cylinder lock attached to the mounting plate is unlocked, the locking rod is slid along the support plate against the biasing force of the tension spring to lock the hook member. Rotate from the position to the unlocked position to release the engagement between the hook member and the receiving metal fitting. In a locking device of a gaming machine for unlocking with a notch, a notch for receiving the receiving metal fitting is provided at one side edge of the hook member, and the notch forms a hook claw portion at a tip side of the hook member, and the hook claw is provided. The notch side of the portion is an arcuate engagement edge centered on the axis of the support shaft, and is parallel to the engagement direction of the hook member and the sliding direction of the locking rod at the locking position of the hook member. The contact point with the tangent line is set so as to be located on a straight line that is orthogonal to the sliding direction of the locking rod and passes through the axis of the support shaft.

According to this, the hook member is provided with a notch of a size for receiving the receiving metal fitting, and the engaging edge for engaging with the receiving metal fitting on the notch side has an arc shape, so that the engagement with the receiving metal fitting is made. Even if it is not set so that there is a play between the engaging edge and the mating edge, a slight frictional force is generated between the engaging edge and the receiving metal at most, and the hook member is smooth about the spindle. It will rotate to the right and can be locked securely,
In addition, unlocking can be performed smoothly.

That is, when the front frame is closed with respect to the main body frame, the claws come into contact with the metal fittings, resist the biasing force of the tension spring, and rotate about the axis of the support shaft, and the claws of the claw member. When the tip of the hook passes over the receiving fitting, the hook member returns to the locked position by the restoring force of the tension spring, and the receiving fitting engages with the hook member to be locked. When the cylinder lock is unlocked in the locked state, the locking rod slides along the support plate against the biasing force of the tension spring, and the hook member interlocks with the sliding to move the shaft center of the spindle. By pivoting to the center, the hook member moves from the locked position to the unlocked position, the engagement between the hook member and the receiving metal fitting is released, and the hook is unlocked, so that the front frame can be opened with respect to the main body frame.

Further, in the locked state, even if a force to open the front frame illegally in the horizontal direction with the hinge as a fulcrum acts, the force is orthogonal to the sliding direction of the locking rod and the shaft of the support shaft. Since it works along a straight line that passes through the heart, there is no risk that the hook member will rotate in the unlocking direction around the spindle, and there is a gap between the front frame and the main frame that can be manipulated. Etc. will not occur. Even if a gap (play) is provided between the engaging edge of the hook member and the receiving metal fitting in the locked state in consideration of a mounting error or the like, the gap (play) is the same as the conventional plate as shown in FIG. Compared with a locking device corresponding to a receiving bracket, the number is small, and therefore, there is no gap or the like between the front frame and the main frame that can be tampered with.

A contact point between the engaging edge of the hook member and a tangent line parallel to the sliding direction of the locking rod may be an engaging contact point with the cylindrical receiving member.

Further, a projection formed on either one of the locking rod or the hook member engages with an elongated hole formed in the other, so that the hook is interlocked with the sliding of the locking rod. The member may be rotatable between a locked position and an unlocked position.

Further, a locking rod is disposed inside the base frame body in which a supporting plate is erected on the side of a vertically long mounting plate so as to be slidable up and down along the supporting plate, and the locking rod is a tension spring. Is urged in the locking direction by means of a mounting frame, the mounting plate is mounted on the front frame that can be opened and closed with respect to the main body frame, and is pivotally supported about supporting shafts provided above and below the support plate. A cylinder mounted on the mounting plate, which is locked by a hook member that is rotatable between a locked position and an unlocked position in association with sliding of the By the unlocking operation of the lock, the locking rod is slid along the support plate against the urging force of the tension spring, the hook member is rotated from the locking position to the unlocking position, and the hook member and the A locking device for a gaming machine, which unlocks by releasing the engagement with a receiving metal fitting. A protrusion formed on one of the rod and the hook member engages with a long hole formed in the other, so that the hook member is interlocked with the sliding position of the locking rod, and the hook member is unlocked and unlocked. It may be rotatable with respect to the position.

According to this, by engaging the projection formed on either one of the locking rod or the hook member with the long hole formed in the other, the hook is interlocked with the sliding of the locking rod. Since the member can be rotated, there is no need for a step of caulking and connecting the hook member and the locking rod with the connecting pin as in the conventional locking device, and the manufacturing cost can be reduced. Further, since it is not necessary to form a curved elongated hole for escaping the caulking portion of the connecting pin in the supporting plate as in the conventional locking device, the manufacturing cost can be reduced also from this point.

In addition, in the conventional locking device, the axis of the support shaft that allows the hook member to rotate and the axis of the connecting pin that connects the hook member and the locking rod are not parallel to each other. Since an unreasonable force is required to rotate the lever and / or slide the locking rod, or it may squeak, the hook member and the receiving metal fitting are not smoothly and reliably engaged, or the engagement state is Although there were drawbacks such as insufficient and smooth and difficult to unlock by key operation, this locking device does not have such drawbacks, locking and unlocking is smooth and reliable, and easy. It can be carried out.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in more detail with reference to the drawings. Of course, the present invention is not limited to the following embodiments. FIG. 1 is a left side view showing one mode of a locking device for a gaming machine according to the present invention, and FIG. 2 is a rear view. Here, the locking device is illustrated as being used in a pachi-slot machine.

As is apparent from FIGS. 1 and 2, the locking device 1 includes a locking rod 5 inside a base frame body 4 having an L-shaped cross section in which a supporting plate 3 stands upright on a side of a vertically long mounting plate 2. Is slidably arranged vertically along the support plate 3, and the support shafts 6 provided on the upper and lower parts of the support plate 3 are interlocked with the sliding of the locking rod 5 by an engaging structure as described later. The hook members 7, 7 pivotally supported about the shafts 6, 6 are rotatable between the locking position and the unlocking position (see the arrow direction in FIG. 1), and the locking rod 5 and the support plate. A reset actuating rod 8 is disposed between 3 and 3 so as to be slidable up and down.

Interlocking with the sliding of the locking rod 5, the hook members 7, 7 pivotally supported around the support shafts 6, 6 provided on the upper and lower parts of the support plate 3 are locked and unlocked. Since the structure that can be rotated between and is mechanically the same in the upper part and the lower part of the locking device 1, the upper part of the locking device 1 will be illustrated and described, and the same structure in the lower part will be described. The description is omitted. FIG. 3 is a partially enlarged left side view of an upper portion of the locking device, showing a state where the hook member 7 is in the locking position, and the locking rod 5
Are shown to slide vertically (indicated by the X direction in the figure). FIG. 4 is a cross-sectional view taken along the line AA in FIG.

As shown in FIG. 3, the hook member 7 is plate-shaped, and a curved notch 7a is provided at the lower edge thereof.
A downward claw portion 7b that engages with the metal fitting is formed on the tip end side thereof. The notch 7a is a receiving fitting 1 described later.
It has a size (depth, width) to receive 4 and has a claw 7b.
The notch side is an arc-shaped engaging edge 7c having a radius R centered on the axis O of the support shaft 6, and the sliding direction X of the locking rod 5 of the engaging edge 7c at the locking position of the hook member 7 is determined. The contact point with a tangent line parallel to is set so as to be located on a straight line Y orthogonal to the sliding direction X of the locking rod 5 and passing through the axis O of the support shaft 6. As will be described later, the outer edge 7d of the hook claw portion 7b is in an arcuate shape that is inclined toward the tip of the nail in order to abut the receiving metal member when locking and rotate the hook member 7 upward about the support shaft 6. .

A projection 11 formed on the locking rod 5 and projecting toward the hook member is engaged with a long hole 10 formed at a position closer to the mounting plate than the insertion hole of the support shaft of the base portion 7e of the hook member 7. By doing so, the hook member 7 can rotate about the support shaft 6 between the locked position and the unlocked position in association with the vertical movement of the locking rod 5. The protrusion amount of the protrusion 11 formed on the locking rod 5 does not exceed the thickness of the hook member 7. Such a protrusion 11 can be formed by, for example, a doweling process using a press.

Recesses 3a, 3a for receiving the metal fittings 14 are formed in the upper and lower portions of the rear edge of the support plate 3, respectively, and a curved contact guide surface is provided below the lower recess 3a. Abutting member 1 made of plastic having
3 is attached (see FIG. 1).

The receiving metal fitting 14 that engages with the hook member 7 of the locking device 1 has the structure shown in the left side view of FIG. 5 and the front view of FIG. As shown in FIGS. 5 and 6, the receiving fittings 14, 1
Reference numeral 4 denotes a columnar pin fixed to the upper and lower portions of the substrate 15. The fixing position of the brackets 14, 14 to the board 15 is
When the hook member 7 of the locking device 1 is in the locking position,
The notch 7a of the hook member 7 is set at a position where the receiving metal fitting 14 can be received, engaged and locked. A receiving member 16 for receiving the plastic abutting member 13 attached to the support plate 3 is attached to a position below the base plate 15 and below the receiving metal fitting 14. The front side of the receiving member 16 is an inclined surface portion continuing to the flat portion. The board 15 is provided with a plurality of setscrew insertion holes 15a for attaching to the body frame of the pachi-slot machine.

As shown in FIGS. 1 and 2, the locking rod 5 and the reset operating rod 8 are slid by a key operation of a cylinder lock 17, as will be described later. The support shafts 3, 6 provided on the support plate 3 use columnar pins, and also have a function of guiding the support plate 3 to slide up and down. The support shafts 6, 6 provided at the upper and lower portions of the support plate 3 and the pin 18 provided at the intermediate portion are provided with the locking rod 5.
Slots 19 formed in the upper and lower end portions and the middle portion,
For example, the locking rod 5 slides up and down between the position where the pin 18 abuts the lower end edge of the elongated hole 19 and the position where the pin 18 abuts the upper end edge thereof.

The pin 19 of the intermediate portion is inserted into the elongated hole 21 formed in the upper portion of the reset operating rod 8 and the reset operating piece 22 is provided in the lower portion of the reset operating rod 8 for locking. The reset actuating rod 8 is slidable up and down by projecting inward through a slit 23 formed in the rod 5. The reset operation piece 22 is bent to the right at a right angle (see FIG. 1), and the tip thereof is attached to the mounting plate 2.
The reset switch (not shown) is activated by sliding the reset actuating rod 8 upward. This reset switch detects the presence or absence of the reset operation piece 22 and outputs a reset signal of the pachi-slot machine, and a contact switch such as a limit switch is used, but not limited to this, a non-contact such as a photoelectric switch is used. It may be a switch.

A spring retaining portion 24 is provided below the elongated hole 21 of the reset operating rod 8 and a slit 25 of the locking rod 5 is provided.
It projects through to the inside of the base frame 4. One end of the tension spring 26 is locked to the spring hook portion 24, and the other end of the tension spring 26 is hooked to a spring hook portion 27 provided on the locking rod 5. Thus, the locking rod 5 is biased upward and the reset actuating rod 8 is biased downward.

The lower portion of the mounting plate 2 is a wide portion 2a,
The cylinder lock 17 is inserted from the inside into a hole formed in the wide portion 2a and protrudes to the outside, and is screwed through the flange portion 29 of the cylinder lock 17. The lock shaft 30 of the cylinder lock 17 projects inside the base frame 4, and the lock shaft 30 has
A cam plate 31 having a first protrusion 31a and a second protrusion 31b is fixed. When the cam plate 31 is rotated counterclockwise in FIG. 2 by the key operation of the cylinder lock 17, the first protrusion 31a engages with the lower side of the engagement hole 32 of the locking rod 5 to lock the locking rod. The second protrusion 31b passes through the escape window 33 of the locking rod 5 when the cam plate 31 is rotated clockwise in FIG. 2 by the key operation of the cylinder lock 17. The reset actuating rod 8 is engaged with the upper side of the engaging hole 34 to slide the reset actuating rod 8 upward.

The mounting plate 2 has a plurality of setscrew insertion holes 2b.
The locking device 1 is attached to the back surface of the free end of the front frame of the pachi-slot machine with a set screw.

Referring to FIG. 7, the locking device 1 having the above-described structure is mounted on the back surface of the free end of the front frame 37 of the pachi-slot machine by a screw (not shown) using the set screw insertion hole 2b of the mounting plate 2. On the other hand, while fixing the receiving metal fittings 14 and 14 to the positions that engage with the hook members 7 and 7 of the locking device 1 in the locked state, the receiving screws 14 and 14 are fixed to the main body frame 38 using the set screw insertion holes 15a of the substrate 15. The state fixed with the screw (not shown) is shown. In FIG. 7, the front frame 37 is shown in a released state with a hinge (not shown) as a fulcrum with respect to the main body frame 38.
In the locking device 1 in this state, due to the urging force of the tension spring 26, the locking rod 5 is at the upper position, the hook member 7 is at the locking position, and the reset operating rod 8 is at the lower position.

The front frame 37 is in a state in which its free end side is slightly lowered due to the weight of various attached devices. When the front frame 37 is closed with respect to the main body frame 38 by using a hinge (not shown) as a fulcrum, first, the abutting member 13 of the locking device 1 rides on the receiving member 16 and the free end side of the front frame 37 moves upward. The hook member 7 of the locking device 1 and the receiving metal fitting 14 are lifted and adjusted to a positional relationship suitable for locking. Next, when the outer edge 7d of the claw 7b comes into contact with the receiving metal fitting 14, the hook member 7 resists the biasing force of the tension spring 26 and moves the shaft center O of the support shaft 6 as shown in FIG. 8 (a). Rotate upwards to the center. Then, when the lower end of the hook claw portion 7b of the hook member 7 gets over the bracket 14, the restoring force of the tension spring 26 causes the hook member 7 to rotate downward and return to the locked position, so that the hook member 7 is attached to the bracket 14. As they engage,
The receiving metal fitting 14 is housed in the recess 3a of the support plate 3 as shown in FIG.
The locked state shown in (b) is obtained.

As is clear from the locked state of FIG. 8 (b), the notch 7a of the hook member 7 has a size (depth, width) for receiving the receiving metal fitting 14, and the notch side of the hook claw portion 7b is An arc-shaped engaging edge 7 having a radius R centered on the axis O of the support shaft 6
c, and the radius r of the receiving fitting 14 is equal to the engaging edge 7
It is smaller than the radius R of c. As a result, even if there is no gap (play) between the engaging edge 7c of the hook member 7 and the receiving metal fitting 14 in the locked state, as described above, the hook member rotated upward during locking. The tip of the claw 7b of 7 gets over the receiving metal fitting 14,
Next, when the hook member 7 tries to return to the locked position by the restoring force of the tension spring 26, the receiving metal fitting 14 and the engaging edge 7c only cause friction due to point contact. It is slight and does not return to the locked position and is not caught on the way, and the arc-shaped engaging edge 7c of the hook member 7 slides on the surface of the receiving metal fitting 14,
It is possible to smoothly return to the locking position and securely lock. Needless to say, unlocking can be performed smoothly as well.

In the locked state, the shaft center O of the support shaft 6, the shaft center Q of the metal fitting 14, and the tangent line parallel to the sliding edge X of the engaging rod 7c of the hook member 7 and the locking rod 5. Since the contact point P is located on the straight line Y, the receiving metal fitting 14 can be engaged at the deep engagement position of the notch 7a, and a reliable locked state can be secured. The contact point P also serves as a contact point at which the arcuate engagement edge 7c of the hook member 7 circumscribes the receiving fitting 14.

In this locked state, even if the front frame 37 is to be opened in the horizontal direction by using the hinge as a fulcrum, the receiving metal fitting 14 is in contact with the arc-shaped engaging edge 7c of the hook member 7 at the contact point P, and Only acts in the straight line Y direction (horizontal direction), and there is no fear that the hook member 7 will rotate in the direction of unlocking around the support shaft 6, and between the front frame 37 and the main body frame 38. There are no gaps that can be manipulated. Receiving metal fitting 14 corresponding to this locking device 1
Is tougher than the conventional plate-shaped bracket,
Since the front frame 37 can withstand a large force for opening the front frame 37, it can be locked safely and securely. Further, it is possible to obtain great advantages such as the necessity of adjusting the engagement state with the hook member with pliers unlike the conventional plate-shaped receiving metal fitting.

Even if a gap is provided between the engaging edge 7c of the hook member 7 and the receiving metal fitting 14 in the locked state in consideration of a mounting error or the like, the gap will be formed.
16 is smaller than the locking device corresponding to the conventional plate-like receiving fitting shown in FIG. 16, and therefore, the front frame 3
There is no gap between the 7 and the main body frame 38 that can be manipulated.

Further, as shown in FIG. 9, as compared with the radius R from the shaft center O of the support shaft 6 to the arcuate engagement edge 7c of the hook member 7, the support shaft 6 is supported from the shaft center O to the receiving metal fitting. 14 axis Q
Up to the distance L and the radius r of the bracket 14 (L +
When r) is slightly larger than the above, the locked state does not occur, so that a mounting error of the locking device 1 or the receiving metal fitting 14 can be easily found, and there is no risk of overlooking the locking failure of the pachi-slot machine.

Further, since the locking device 1 rotates the hook member 7 in conjunction with the sliding of the locking rod 5, the locking device 1
The protrusion 11 formed on the locking rod 5 is inserted into the elongated hole 10 of the base portion 7e of the hook member 7 to engage the protrusion 11 with the elongated hole 19 at the upper and lower ends of the locking rod 5 and the hook member 7. Of the support shaft 6 through which the support shaft 6 is inserted.
May be inserted into the elongated hole 19 of the locking rod and the insertion hole of the support shaft 6 of the hook member 7 and fixed to the support plate 3. As a result, unlike the conventional locking device, the step of caulking and connecting the hook member and the locking rod with the connecting pin is not necessary, and the manufacturing cost can be suppressed.

Further, in the conventional locking device, the axis of the support shaft that allows the hook member to rotate and the axis of the connecting pin that connects the hook member and the locking rod are not parallel to each other. Since an unreasonable force is required to rotate the lever and / or slide the locking rod, or it may squeak, the hook member and the receiving metal fitting are not smoothly and reliably engaged, or the engagement state is Although there were drawbacks such as insufficient and smooth and difficult to unlock by key operation, this locking device does not have such drawbacks, locking and unlocking is smooth and reliable, and easy. It can be carried out.

Further, when the front frame 37 is closed with respect to the main body frame 38, since the receiving metal fittings 14, 14 are housed in the recesses 3a, 3a of the support plate 3, the front frame 37 is forcibly lifted. , The hook members 7, 7 and the receiving fittings 14, 14
Even if an attempt is made to release the engagement with, the lower edges of the recesses 3a, 3a cannot contact the receiving metal fittings 14, 14 and cannot be lifted.

In the locked state, a key (not shown)
Insert the lock into the cylinder lock 17 and operate the cam plate 3 by key operation.
When 1 is rotated counterclockwise in FIG. 2, the cam plate 3
The first protrusion 31a of No. 1 engages with the lower side of the engaging hole 32 of the locking rod 5, and the locking rod 5 slides downward against the urging force of the tension spring 26, whereby the base of the hook member 7 is formed. The protrusion 11 inserted into the elongated hole 10 of 7e causes the hook member 7 to rotate upward about the axis O of the support shaft 6, and the hook members 7 and 7 and the receiving metal fitting 1
The engagement with Nos. 4 and 14 is released and unlocked. Then, when the front frame 37 is rotated in the opening direction with the hinge as a fulcrum, the contact member 13 descends from the receiving member 16 and the front frame 37 with the hinge as a fulcrum.
Can be opened with respect to the body frame 38. When this key operation is completed, the locking rod 5 returns to the position shown in FIG. 1 by the urging force of the tension spring 26.

When the key is inserted into the cylinder lock 17 and the cam plate 31 is rotated clockwise in FIG. 2 in the locked state, the second projection of the cam plate 31 causes the second projection of the cam plate 31 to engage with the engaging hole 34 of the reset operating rod 8. When the reset actuating rod 8 is engaged with the upper side and slides upward against the biasing force of the tension spring 26, the reset actuating piece 22 actuates a reset switch (not shown) to output a reset signal. The reset signal resets the pachi-slot machine. When the reset operation by the key operation is released, the reset operating rod 8 is returned to the initial position shown in FIG. 2 by the urging force of the tension spring 26. The receiving metal fitting 14 is a cylindrical pin, but is not limited to this and may be, for example, a hexagonal cylindrical pin 39 as shown in FIG. 10 or an elliptic cylindrical pin 40 as shown in FIG. 11. May be used, and pins having various cross-sectional shapes can be adopted.

The lock device is not limited to the above-mentioned structure, and various modes can be adopted, and for example, the lock device may be modified as follows. In the following, only the main differences from the locking device described above will be described, and detailed description of the other points will be omitted.

The locking device 41 shown in FIG. 12 includes a hook member 42.
At the position near the mounting plate of the base portion 42a of the base 42a, the support plate 43 formed on the locking rod 45 is provided in the long hole 44 which is rotatable about the support shaft 43 and is formed at the position near the notch of the base portion 42a. Projection 46 is inserted into the projection 46 and the long hole 44.
The hook member 42 is rotatable about the support shaft 43 between the locked position and the unlocked position in association with the sliding of the locking rod 45 by the engagement with. In this structure, since the locking rod 45 can be unlocked by moving it upward, when the cam plate is rotated in the clockwise direction, the locking rod is engaged with the engaging hole of the locking rod from below to open the locking rod. Appropriate changes such as sliding upward may be made.

As in the locking device 51 shown in FIG. 13, the hook member 52 is connected to the locking rod 53 by the connecting pin 54 at a position of the base 52a of the hook member 52 near the mounting plate 2. The hook member 52 may be rotatable about the support shaft 55 between the locked position and the unlocked position in association with the sliding up and down. In FIG. 13, the hook member 52 has a long hole through which the connecting pin 54 is inserted.

Although not shown in the figure, the hook member has an outer edge of the hook claw portion of the hook member bent to form a contact surface with the receiving metal member in order to ensure contact with the receiving metal member. May be

In the above description, the locking rod is provided with the protrusion protruding toward the hook member side, and the hook member is provided with the elongated hole for engaging with the protrusion. However, the present invention is not limited to this, and the locking member is locked. By providing a protrusion protruding to the rod side and forming a long hole in the locking rod that engages with the protrusion, the hook member moves up and down in association with the sliding of the locking rod up and down, and the locking member moves to the locking position around the spindle. Needless to say, it may be possible to rotate between the unlocked position and the unlocked position. The protrusions may be formed by burring as well as those formed by press working.

In FIG. 14, the hook member 61 is provided with a protrusion 62 projecting toward the locking rod side, and the locking rod 63 is provided with a long hole 64 for engaging with the protrusion 62 so that the locking rod 63 can be vertically moved. It is a locking device 66 that is interlocked with sliding and that allows the hook member 61 to rotate about a support shaft 65 between a locked position and an unlocked position. The protrusion 62 provided on the hook member 61 is shown as being formed by burring as shown in FIG. In the locking device 66, a slight protrusion 61a is formed around the insertion hole of the support shaft formed in the hook member 61, for example, toward the support plate by embossing.
Are formed, and the contact area with the support plate 3 is reduced. Other than that, the same components as those of the locking device shown in FIG.

Although the locking device has been described as being suitable for a pachi-slot machine, the locking device is not limited to this, and it is suitable for a pachinko machine by adopting a glass frame unlocking operation bar for a pachinko machine instead of the reset actuating bar. It can be a locking device.

[0054]

Since the present invention is configured as described in detail above, it has the following effects. That is, in the locking device of the gaming machine, a notch for receiving the receiving metal fitting is provided at one side edge of the hook member, a hook claw portion is formed at the tip end side of the hook member by the notch, and the notch side of the hook claw portion is the support. It is an arc-shaped engaging edge around the axis of the shaft, and a contact point between the engaging edge of the hook member and the tangent line parallel to the sliding direction of the locking rod at the locking position of the hook member, Since the hook member is set so as to be positioned on a straight line that is orthogonal to the sliding direction of the locking rod and passes through the axis of the support shaft, the hook member has a notch of a size that receives the receiving metal fitting, and the notch side The engaging edge that engages with the receiving fitting has an arc shape, and even if it is not set so as to create a gap between the engaging edge with the receiving fitting, at most between the engaging edge and the receiving fitting. A slight friction force is generated, and the hook member is smooth around the spindle. Will be rotated, it can be reliably locked, also be carried out unlocking likewise smoothly. Further, in the locking device of the gaming machine, a projection formed on either one of the locking rod or the hook member engages with a long hole formed in the other to interlock with the sliding of the locking rod. Since the hook member is rotatable between the locking position and the unlocking position, the projection formed on either one of the locking rod and the hook member is provided in the long hole formed in the other. By engaging it, it is possible to rotate the hook member in conjunction with the sliding of the locking rod, and like a conventional locking device, the process of crimping the hook member and the locking rod with a connecting pin. Therefore, the manufacturing cost can be reduced. Further, since it is not necessary to form a curved elongated hole for escaping the caulking portion of the connecting pin in the supporting plate as in the conventional locking device, the manufacturing cost can be reduced also from this point. Further, in the conventional locking device, if the axis line of the support shaft that allows the hook member to rotate and the axis line of the connecting pin that connects the hook member and the locking rod are not parallel, the rotation of the hook member is not possible. , And / or sliding of the locking rod requires excessive force or is squeezed, so that the hook member and the receiving metal fitting are not smoothly and reliably engaged, or the engagement state is insufficient. However, there was a drawback that it was difficult and difficult to unlock by key operation, but this locking device does not have such a defect, locking and unlocking is smooth and reliable, and it is easy to perform. it can. Other actions and effects of the present invention will be apparent from the embodiments and the drawings.

[Brief description of drawings]

FIG. 1 is a left side view showing one mode of a locking device of a gaming machine according to the present invention.

FIG. 2 is a rear view of the locking device shown in FIG.

FIG. 3 is a partially enlarged view of the locking device shown in FIG.

4 is a cross-sectional view taken along the line AA in FIG.

FIG. 5 is a left side view of a receiving fitting that engages with the hook member of the locking device shown in FIG. 1.

6 is a front view of the receiving fitting shown in FIG. 5. FIG.

FIG. 7 is an explanatory view showing a state in which the locking device shown in FIG. 1 is attached to a pachi-slot machine.

8 is an explanatory view of a locking operation of the locking device shown in FIG.
(A) shows a locked state, and (b) shows a locked state.

9 is an explanatory diagram showing a locking failure state of the locking device shown in FIG. 1. FIG.

FIG. 10 is a partially enlarged view showing another form of the receiving fitting that engages with the hook member of the locking device shown in FIG. 1.

FIG. 11 is a partially enlarged view showing still another form of the receiving fitting that engages with the hook member of the locking device shown in FIG. 1.

FIG. 12 is a partial left side view showing another form of the locking device of the present invention.

FIG. 13 is a left side partial enlarged view showing still another form of the locking device of the present invention.

FIG. 14 is a partially enlarged left side view showing still another form of the locking device of the present invention.

15 is a plan view of the locking device shown in FIG. 14. FIG.

FIG. 16 is an explanatory diagram showing a state in which a conventional locking device is attached to a pachi-slot machine.

17 is a partially enlarged view of the conventional locking device shown in FIG.

FIG. 18 is a partially enlarged view showing an example of a locking failure state of the conventional locking device shown in FIG. 16.

FIG. 19 is a partially enlarged view showing another example of the conventional locking device.

FIG. 20 is a partially enlarged view showing still another example of the conventional locking device.

FIG. 21 is a partially exploded enlarged perspective view of the locking device shown in FIG. 16.

[Explanation of symbols]

1 Locking device 2 Mounting plate 3 Support plate 5 Locking rod 6 spindles 7 Hook members 10 long holes 11 protrusions 14 Bracket 17 cylinder lock

Claims (4)

[Claims] 1. A locking rod is disposed inside a base frame in which a supporting plate stands upright on a side of a vertically long mounting plate so as to be slidable up and down along the supporting plate, and the locking rod is a tension spring. Is urged in the locking direction by means of a mounting frame, the mounting plate is mounted on the front frame that can be opened and closed with respect to the main body frame, and is pivotally supported about supporting shafts provided above and below the support plate. A cylinder mounted on the mounting plate, which is locked by a hook member that is rotatable between a locked position and an unlocked position in association with sliding of the By the unlocking operation of the lock, the locking rod is slid along the support plate against the urging force of the tension spring, the hook member is rotated from the locking position to the unlocking position, and the hook member and the A locking device for a gaming machine that unlocks by releasing the engagement with a receiving metal fitting, wherein the hook member A notch for receiving the receiving metal fitting is provided on one side edge, and a hook claw portion is formed on the tip side of the hook member by the notch, and the notch side of the hook claw portion has an arc shape centered on the axis of the spindle. The engaging edge is a contact point between the engaging edge of the hook member and a tangent line parallel to the sliding direction of the locking rod at the locking position of the hook member, and the contact point is orthogonal to the sliding direction of the locking rod. A locking device for a game machine, wherein the locking device is set to be located on a straight line passing through the axis of the support shaft. 2. A contact point between an engaging edge of the hook member and a tangent line parallel to the sliding direction of the locking rod is an engaging abutting point with a cylindrical receiving fitting. 1. A lock device for a game machine according to 1. 3. A hook formed on either one of the locking rod or the hook member engages with a long hole formed in the other to interlock with the sliding of the locking rod. The locking device for a gaming machine according to claim 1, wherein the member is rotatable between a locked position and an unlocked position. 4. A locking rod is disposed inside a base frame in which a supporting plate stands upright on a side of a vertically long mounting plate so as to be slidable up and down along the supporting plate, and the locking rod is a tension spring. Is urged in the locking direction by means of a mounting frame, the mounting plate is mounted on the front frame that can be opened and closed with respect to the main body frame, and is pivotally supported about supporting shafts provided above and below the support plate. A cylinder mounted on the mounting plate, which is locked by a hook member that is rotatable between a locked position and an unlocked position in association with sliding of the By the unlocking operation of the lock, the locking rod is slid along the support plate against the urging force of the tension spring, the hook member is rotated from the locking position to the unlocking position, and the hook member and the A locking device for a gaming machine that unlocks by releasing engagement with a receiving metal fitting, wherein the locking rod Alternatively, a protrusion formed on either one of the hook members engages with an elongated hole formed on the other, so that the hook member is interlocked with the sliding position of the locking rod so that the hook member is locked and unlocked. A locking device for a gaming machine, which is rotatable between a position and a position.