JP2003214413A - Lock pin, manufacturing method for lock pin and sealing structure using lock pin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and quickly perform a sealing work by only a simple, small and light structure, to surely discover a malfeasant door opening by leaving traces of the door opening clearly to inhibit repairing of the traces and to perform a right door opening work without destroying and cutting a case for storing a control board of a game machine, etc., as a sealing means for the case. <P>SOLUTION: This lock pin 10 is provided with a head part 11 having a groove 11a to which a distal end of a tool is engaged, a shaft part 12 continuous integrally with the head part 11, a square angular pin part 13 continuous integrally with the shaft part 12, a tapered twisting and cutting part 12a formed on the shaft part 12, and a capsule incorporated from the shaft part 12 over the twisting and cutting part 12a and the angular pin part 13. By fastening the head part 11 by the tool in a state of the angular pin part 13 non-rotatably held and fitted by the case, etc., the twisting and cutting part 12a is twisted and cut, the incorporated capsule is cut, and paint within the capsule is made to flow. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention requires the doors to be unopenable and non-separable from the viewpoint of tampering prevention, such as a case for a control board provided in a gaming machine typified by a pachinko machine. Regarding a lock pin for fixing and sealing a fixed object and an object to be fixed, in particular, only a simple, small and lightweight structure enables easy and quick sealing work, and a clear trace of sealing release It is possible to reliably detect and determine the presence or absence of unauthorized unsealing by leaving it in a non-concealable state, and at the time of legal unsealing work, destroy or cut fixed objects such as cases and fixed objects. TECHNICAL FIELD The present invention relates to a lock pin that can easily release the seal, a method of manufacturing the lock pin, and a sealing structure using the lock pin.

[0002]

2. Description of the Related Art Generally, a gaming machine such as a pachinko machine or a slot machine is provided with a control board on which electronic parts such as an IC and a ROM for controlling the operation of the gaming machine are mounted. recent years,
The control board of this type of gaming machine is a target of malicious malicious acts such as replacement and modification of ROM and the like, addition of illegal parts, connection, etc. by an illegal person, and the damage is serious. As a means for eliminating such fraudulent acts on the control board of the gaming machine, conventionally, the entire control board is housed in a predetermined case, and the case is attached to the gaming machine side in a state in which the door cannot be opened. Measures have been taken.
Then, as a method of sealing the case containing the control board of the game machine so that the door cannot be opened, so far, the case containing the control board is fixed with a screw or the like, and a seal sticker is attached to the opening / closing part of the case. That method was commonly used.

However, in the sealing method in which the sealing sticker is attached to the opening / closing portion of the case as described above, an illicit person skillfully peels off the sealing sticker and reattaches the peeled sticker or the counterfeit sticker after the fraudulent activity ends. In that case, it became extremely difficult to find the wrongdoing, which was insufficient as a means for preventing the wrongdoing. For this reason, new means have been proposed in place of the sealing method in which a seal sticker is simply applied. As the sealing means proposed so far,
A detent screw that locks the opening and closing part of the control board case of the gaming machine, rotates only in the tightening direction, and the tool slips when trying to rotate it in the loosening direction,
Some use shear screws that cause the screw head to shear when torque is applied to the screw. In addition, there is a structure in which the screw fixing portion and the surrounding case are damaged or destroyed when the screw fixing the case opening / closing portion is loosened.

According to such a conventional sealing method and sealing structure, it is difficult to unscrew the screw by using a detent screw or a shear screw. If you do not cut or destroy the case or the case itself, you will not be able to open the case, making it difficult to carry out fraudulent acts, and even if fraudulent acts are done, check the screwed part and the damaged or destroyed part of the case By doing so, it became possible to discover the fact. Regarding the sealing method and the sealing structure of this type, for example, Japanese Patent Laid-Open No. 9-276481
“Pachinko machine control board storage box”, Japanese Patent Application Laid-Open No. 10-295911, “Game machine board box sealing device”, Japanese Patent Application Laid-Open No. 2001-111247, “Closing device”, Japanese Patent Application Laid-Open No. 2001-161891. Various proposals have been made, such as "Method of sealing board case of game machine, sealing structure, sealing member" in Japanese Patent Publication.

[0005]

However, in such a conventional sealing method and sealing structure, a special screw such as a detent screw or a shear screw is used, or a special structure that is destroyed by a constant torque is used. Since it was necessary to provide it on the case side, the manufacturing cost increased and the sealing structure itself became large, complicated, and heavy. In addition, such a sealing method using a special screw or a destructive structure also complicates and complicates the sealing work performed by an administrator of the gaming machine, and particularly manages a hall for managing and operating a large number of gaming machines. There was also the problem that it would be a heavy burden on the people.

Further, in such a conventional sealing structure,
Since it was designed to visually check the breakage of the case and the screwed part and whether there is a broken part, the administrator may overlook the damage, especially when the broken part is small, and If was properly repaired, it was possible to conceal the wrongdoing. Therefore, there is also a problem that it is difficult to detect the facts of the misconduct surely and quickly.

In addition, in the conventional sealing structure, the case is opened and unsealed without cutting or breaking the sealing part or the case itself, and as a result, the manager or supervisor of the hole performs the operation. Even in the case of proper opening and unsealing work, the screwed part and the case had to be broken and cut. Therefore, the unsealing work becomes extremely complicated, and in the case of a hall where a large number of game machines are managed and operated, the complicated unsealing work becomes a heavy burden and is destroyed and cut for the purpose of unsealing. In some cases, the case cannot be reused thereafter, and the cost of the case increases, and resources are wasted.

The present invention has been proposed in order to solve the problems of the prior art as described above, and can perform the sealing work easily and quickly by using only a simple, small-sized and lightweight structure, and The trace of the door opening can be left in a clear and unobscured state to reliably detect and determine the presence or absence of unauthorized sealing removal. A lock pin, which can be easily released without breaking or cutting, and which is particularly suitable as a sealing means for a control board housing case of a game machine such as a pachinko machine, a method of manufacturing the lock pin, and a seal using the lock pin. The purpose is to provide a stop structure.

[0009]

In order to achieve the above object, a lock pin according to claim 1 of the present invention has a head having a groove with which a tip of a tool engages, and is integrally connected to the head. A shaft portion, an angular square pin portion that is integrally continuous with the shaft portion, a twisting portion formed on the shaft portion, and the shaft portion is built in from the twisting portion and the square pin portion. A capsule having a hollow portion, and the head portion is tightened by a tool in a state in which the square pin portion is held non-rotatably, the twisting portion is twisted, and the hollow portion of the capsule is provided. Is cut off.

The lock pin according to claim 2 has a structure in which the liquid is filled in the hollow portion of the capsule. Particularly, in claim 3, the liquid filled in the hollow portion of the capsule is a paint.

According to the lock pin of the present invention having such a structure, the square pin portion formed in the square shape (square column shape, hexagonal column shape, etc.) of the lock pin is fitted into the fixed object side to lock the lock pin. The entire pin is held non-rotatable.
Then, in this state, when the head of the lock pin is tightened by the tool inserted from the screw hole on the fixed object side,
The twisting portion is twisted, and the capsule built in the lock pin is cut. Therefore, by filling the inside of the capsule with, for example, red liquid paint, the paint can flow out from the capsule at the same time as the twisting of the twisting portion, and the paint can flow out and adhere to the lock pin attachment portion and its surroundings. . Moreover, since the head of the lock pin is formed with a groove for engaging with a tool such as a screwdriver, the lock pin looks like a screw type screw from the outside.

Thus, if the lock pin is used as a sealing portion of a case for a control board of a gaming machine such as a pachinko machine, a person who tries to open the case will loosen the lock pin with a tool. As a result, the head is tightened, as a result, the twisted portion is twisted and the paint in the capsule flows out,
There will be a clear imprint of improper unsealing. The paint flowing out from the capsule due to the twisting of the twisting part flows out and adheres to the periphery of the sealed part of the case, so this can be confirmed at a glance from the outside, and it is almost impossible to wipe off the adhered paint completely. Since it is possible, if an unauthorized door is opened, it is impossible to conceal it and it will be immediately detected and discovered by the confirmation work of the administrator or the like.

As described above, according to the present invention, by simply attaching a simple, small-sized, and lightweight lock pin to a desired sealing portion, the evidence of the illegal release of the sealing portion can be clearly and irrevocably repaired. Since it can be left as a trace, and fraudulent acts can be detected reliably and quickly, it is extremely effective as a fraud prevention means. Moreover, this lock pin has only a simple structure formed by integral molding of synthetic resin, etc., and it is only necessary to provide a square hole into which the square pin portion of the lock pin fits in the sealing part such as the case. Can be used. Therefore, the sealing structure including the lock pin is extremely simple, and the sealing work can be completed simply by pushing the lock pin into the square hole and mounting it. Sealing with the lock pin is extremely easy. It becomes possible to carry out, and it is possible to reliably and effectively prevent fraudulent activities, while significantly reducing the work load on the administrator and the like.

On the other hand, in claim 4, the liquid filled in the hollow portion of the capsule is an adhesive.

According to the lock pin of the present invention having such a structure, by filling the adhesive into the capsule, the lock pin is twisted due to an illegal door opening action and, at the same time, the adhesive flows out of the capsule. As a result, a fixed object such as a case and an object to be fixed are bonded to each other, so that the door itself cannot be opened. As a result, it becomes possible to prevent and eliminate the illegal opening act more thoroughly. The adhesive used to fill the capsules is preferably a quick-drying adhesive that has a quick-adhesive action, and is mixed with paint to clearly leave a trace of unauthorized unsealing. It is more desirable to color the adhesive by applying it.

According to a fifth aspect of the invention, the liquid filled in the hollow portion of the capsule has a smell.

According to the lock pin of the present invention having such a structure, by filling the inside of the capsule with a liquid having an odor, the lock pin is twisted by an improper unsealing action, and at the same time, the capsule is removed. The odor of the liquid that leaks can inform others on the spot that a fraudulent activity was performed. As a result, it is possible to detect fraudulent acts without requiring visual confirmation, and it is also possible to identify fraudulent persons on-site, and it is possible to prevent and eliminate fraudulent unsealing acts more thoroughly. it can. The odorous liquid to be filled in the capsule can be colored so as to leave a trace of improper sealing release, or can be used in combination with the adhesive described above.

On the other hand, the lock pin according to the sixth aspect has a structure in which the hollow portion of the capsule is filled with gas.

According to the lock pin of the present invention having such a structure, the lock pin is twisted by an improper unsealing action by filling the capsule with colored or odorous gas. The gas is emitted from the capsule, and as in the case of the odorous liquid described above, it is possible to inform the surroundings of the fraudulent activity on the spot. In particular, in the case of gas, it is possible to visually confirm even from a remote place where the odor does not reach, and it is more effective as a means to monitor fraudulent unsealing acts from the surroundings and identify fraudulent persons etc on the spot. Target. The gas filled in the capsule can be used in combination with the liquid described above.

The lock pin according to a seventh aspect of the present invention is configured such that the hollow portion of the capsule has a substantially circular cross section. On the other hand, the lock pin according to claim 8 is configured such that the hollow portion of the capsule has a substantially elliptical cross section.

According to the lock pin of the present invention having such a structure, the hollow portion of the capsule incorporated in the lock pin has an arbitrary shape depending on the ease of manufacture and the type and amount of the liquid or gas to be filled. Can be In general, a hollow portion having a substantially circular cross section is selected for ease of manufacturing and the like. In the case of a hollow part having a substantially elliptical cross section, compared to the case of a perfect circular shape, torque is more likely to be applied when the twisting part is twisted, and a preferable shape in that the hollow part is reliably cut. Become.

Further, in the lock pin according to the ninth aspect, the twisted portion is composed of a tapered portion formed on the surface of the shaft portion. On the other hand, in the lock pin according to the tenth aspect, the twisted portion is composed of one or more recesses formed on the surface of the shaft portion.

According to the lock pin of the present invention having such a structure, the twisted portion formed on the surface of the shaft portion has the shape, size, structure, etc., of ease of manufacturing, thickness of the shaft portion, and built-in portion. It can be arbitrarily selected depending on the size of the capsule to be formed. That is, the twisting portion according to the present invention may have any shape, structure or the like as long as it is reliably twisted by the torque applied to the head of the lock pin. Generally, it is preferable to form a tapered shape in which the thickness of the shaft portion is reduced along the outer circumference in the direction around the axis, or to form a recess that partially reduces the thickness of the shaft portion.

The method of manufacturing a lock pin according to claim 11 is the method of manufacturing a lock pin according to any one of claims 1 to 10, wherein a step of forming a capsule having the hollow portion and a step of forming the formed capsule. A step of holding one end side and disposing the lock pin in a cavity of a mold for integrally molding, and a lock in which a resin material is injected into the cavity to integrally enclose the capsule inside. A method comprising a step of molding a pin, a step of taking out the molded lock pin from the mold, and scraping off a holding portion on one end side of the capsule and an injection mark portion of the resin material protruding on the surface of the lock pin. There is.

According to the method for manufacturing a lock pin of the present invention, which comprises the above steps, a capsule is filled with a liquid or the like in a mold, and the lock pin is formed by injection molding. The lock pin according to the invention can be manufactured. As a result, the lock pin according to the present invention can be efficiently manufactured in large quantities at low cost. Note that other manufacturing methods can of course be used as long as the lock pin according to the present invention can be manufactured.

Further, a sealing structure using a lock pin according to a twelfth aspect is a sealing structure for sealing a fixed object and a fixed object by using the lock pin according to the first to tenth aspects, The fixed object has a hole through which the lock pin is inserted, the square pin portion and the shaft portion of the lock pin can pass, and the head is locked so that the head cannot pass, and the fixed object is , The square pin portion of the lock pin that has passed through the hole portion is fitted non-rotatably in the axial direction, and the fitted square pin portion has a square hole portion that is held so as not to fall off,
By inserting the lock pin into the hole and fitting and holding it in the square hole, the fixed object and the fixed object are fixed, and the head of the lock pin is tightened by a tool. The twisting portion is twisted to cut the hollow portion of the capsule.

According to the sealing structure using the lock pin of the present invention having such a structure, the square pin portion and the shaft portion of the lock pin pass through to the fixed object side, and the head can be locked. Realize a sealing structure that uses this lock pin by providing a hole with a hole diameter and also providing a square hole on the fixed object side so that the square pin can not rotate and fall off. You can Thus, for example, the present invention can be implemented only by forming a hole and a square hole in the opening / closing part of the control board case of the gaming machine, and a complicated and large-sized structure like the conventional sealing structure. It is possible to realize a reliable sealing structure with this lock pin with only a simple structure without providing
Manufacturing costs can also be reduced.

Further, according to the sealing structure composed of the hole and the square hole, the sealing work is completed only by inserting the lock pin into the hole while inserting the lock pin into the hole. No complicated work such as tightening work is required, and only a very simple work of pushing in the lock pin is required, and the burden of the sealing work performed by the administrator or the like can be greatly reduced.
The square hole into which the lock pin is fitted holds the square pin so that the lock pin cannot be removed, so that the lock pin once fitted cannot be removed. As a result, if a cheating person twists the lock pin to unlawfully release the seal, the twisted square pin portion remains in the square hole portion. It becomes impossible to conceal the wrongdoing by wearing another lock pin that was forged, etc., and the evidence of the wrongdoing will be left in a clear and irreparable state, and the wrongdoing will be surely found.
Can be detected.

Further, the fixed and sealed fixed object and the fixed object are opened by simply tightening the head of the mounted lock pin with a tool to twist the twisted portion to release the sealing. Since the doors can be separated, the lock pin can be twisted without breaking or cutting the case or screwed parts as in the conventional case when the administrator or the like properly releases the seal or opens the door. Therefore, even when maintenance and management of the control board of the gaming machine are performed, the burden of the sealing release operation can be greatly reduced. Moreover, according to the sealing structure of the present invention, which does not require breakage or cutting of the case, the screw fastening portion, etc.,
Fixed objects such as cases and objects to be fixed, which have been properly unsealed by the administrator, etc., can also be used again, reducing wasteful costs such as cases and making effective use of resources. it can.

According to a thirteenth aspect of the present invention, an engaging structure is provided on the inner periphery of the hole portion and the outer periphery of the square pin portion of the lock pin so as to engage with and disengage from each other.

According to the sealing structure using the lock pin of the present invention having such a structure, by providing the engaging structure which can be engaged and disengaged with the hole portion on the fixed object side and the square pin portion of the lock pin,
The lock pin can be engaged with the hole on the fixed object side in a temporarily fixed state before being fitted into the square hole on the fixed object side. Then, the lock pin engaged with the hole portion in the temporarily fixed state can be fitted into the square hole portion on the fixed object side by pushing the head portion. As a result, before performing the final sealing work, the lock pin can be previously engaged and mounted in the hole portion on the fixed object side in a temporarily fixed state, and the sealing work is performed by the head of the lock pin. It can be completed simply by pushing in, and the sealing work can be performed easily and quickly, and the work load can be further reduced.

Further, in the sealing structure using the lock pin according to claim 14, the fixed object and the fixed object are constituted by a control board case of a game machine which is fitted so as to be openable and closable with each other. Further, in the sealing structure using the lock pin according to claim 15, one of the fixed object and the fixed object is a case for a control board of a gaming machine, and the other is a game to which the case for the control board is attached. It consists of a machine.

According to the sealing structure using the lock pin of the present invention having such a structure, a sealing structure is required from the viewpoint of fraud prevention, and prompt, reliable discovery and detection of fraud is required. In addition, the present invention can be applied to a sealing structure for a control board housing case of a gaming machine in which a proper sealing release operation is performed. Further, the present invention can be provided with a sealing structure for sealing the opening / closing part of the control board housing case of the gaming machine so that the door cannot be opened, and the sealed case and the gaming machine cannot be removed or separated. It can also be used as a sealing structure for sealing. That is, the present invention is a versatile sealing structure that can be applied to any fixed objects and objects to be fixed that need to be opened and cannot be separated. .

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a lock pin, a method of manufacturing the lock pin, and a sealing structure using the lock pin according to the present invention will be described below with reference to the drawings.

[First Embodiment] First, a lock pin according to a first embodiment of the present invention, a method for manufacturing the lock pin, and a sealing structure using the lock pin will be described with reference to FIGS. . FIG. 1 is a perspective view showing a lock pin according to a first embodiment of the present invention. 2A and 2B show a lock pin according to the present embodiment. FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a bottom view. FIG. 3 is an enlarged front view of a cross section of a main part of the lock pin according to the present embodiment. Figure 4
6A to 6C are process diagrams showing a method of manufacturing a lock pin according to the present embodiment, where FIG. 9A is a capsule forming process, FIG. 8B is a process of inserting and fixing a capsule holding one end side into a mold, and FIG.
Shows a step of molding a lock pin by injecting a resin material into a mold in which a capsule is inserted, and (d) shows a step of scraping off unnecessary parts of the lock pin taken out from the mold. FIG. 5 is a schematic perspective view of the sealing structure using the lock pin according to the present embodiment, and shows a case where the control board housing case of the gaming machine using the lock pin is sealed.

6 to 10 are enlarged cross-sectional views taken along the line AA shown in FIG. 5, FIG. 6 is a state immediately before the lock pin is inserted into the lock pin mounting portion of the case, and FIG. 7 is a case lock. The state where the lock pin is inserted into the pin mounting part, the state where the lock pin is completely attached to the lock pin mounting part of the case shown in FIG. 8, and the lock pin attached to the lock pin mounting part of the case is shown in FIG. 9 with a tool. As a result of loosening and opening the case, the twisted portion is twisted. Also, in FIG. 10, as a result of the case being opened, the paint flows out from the capsule in the lock pin, leaving a trace of the door open. Shows the closed state. FIG. 11 is a perspective view showing a modification of the square pin portion of the lock pin according to this embodiment. FIG. 12 is a perspective view showing a modification of the twisting portion of the lock pin according to this embodiment. 13A and 13B show a modified example of the capsule of the lock pin according to the present embodiment. FIG. 13A is a plan view, FIG. 13B is a front view, and FIG. 13C is a bottom view.

[Lock Pin] As shown in FIG. 1, the lock pin 10 according to this embodiment includes a head portion 11, a shaft portion 12, and a square pin portion 13, which are wholly made of synthetic resin such as plastic. Has been formed. Then, inside the lock pin 10, the capsule 14 is built in from the shaft portion 12 to the square pin portion 13, and the shaft portion 12 has the twisting portion 12a.
By being twisted at, the built-in capsule 14 is cut.

The head portion 11 is formed in a circular shape, and has a groove 11a on the upper surface with which the tip of a tool such as a driver is engaged. Here, in this embodiment, the groove 11a has a shape corresponding to a minus driver as shown in FIG. 1. However, it is needless to say that the groove 11a may be formed into a shape corresponding to other tools such as a plus driver. It is possible. Thus the head 11
By forming the groove 11a for the tool on the outside, the lock pin 10 looks like a screw type screw from the outside, and as will be described later, it is possible to cause a fraudulent person to tighten the lock pin 10 and twist it. It becomes possible. Further, even when the administrator of the gaming machine or the like legally releases the sealing of the lock pin 10, by engaging a driver or the like with the groove 11a of the head portion 11, the sealing release work can be easily performed. become. Then, as will be described later, the head portion 11 is adapted to engage with the hole portion 22 of the upper case 20 which is a fixed object (see FIG. 5).

The shaft portion 12 is formed in a cylindrical shape which is integrally continuous with the head portion 11 and serves as a means for connecting the head portion 11 and the square pin portion 13. When the upper case 20 and the lower case 30, which will be described later, are assembled and completely fitted, the shaft portion 12 contacts the inner surface of the round hole 22 with the head portion 11 and locks the square pin portion 13 while It is formed to have a length to be fitted and mounted in the square hole 32 (see FIG. 8). Here, the shaft portion 12 is
In this embodiment, it is formed in a cylindrical shape, but the shape is not particularly limited to a cylindrical shape. That is, the shaft portion 1
2 is a hole 22 and a lower case 3 of an upper case 20 which will be described later.
It may have any shape as long as it has an outer diameter capable of passing through the square hole 32 of 0 and that connects the head portion 11 and the square pin portion 13, for example, a prismatic shape. it can.

The square pin portion 13 is formed in a square shape integrally continuous with the shaft portion 12, and has a square pole shape in this embodiment. By fitting this square-shaped square pin portion 13 into a square hole 32 of a lower case 30 described later, the square pin portion 1
3 is retained so that it cannot be fitted and rotated in the axial direction. Then, the lock pin fixing claw 33 formed in the square hole 32 of the lower case 30 is fitted to the outer edge of the end portion of the square pin portion 13 on the side of the shaft portion 12, and the square pin portion 13 comes off from the square hole 32. It is designed so that it cannot be fitted and held (see Fig. 8).

Here, the square pin portion 13 is formed in the shape of a quadrangular prism in the present embodiment, but the shape is not particularly limited to the quadrangular prism shape as long as it is a square shape. That is, the square pin portion 13 may have any shape as long as it fits into the square hole 32 of the lower case 30 and cannot rotate about the axis, and has a polygonal shape other than the quadrangular shape shown in FIG. 1 (pentagon, hexagon, etc.). It is also possible to make it, for example, as shown in FIG. 11, can be made into an octagonal prism shape. In addition, the tip of the square pin portion 13 (see FIG.
The lower end of the lock pin 10) is formed in a tapered shape so that it can be easily inserted into the hole 22 of the upper case 20 and the square hole 32 of the lower case.

In the twisted portion 12a, the shaft portion 12 is a square pin portion 13
In the present embodiment, as shown in FIG. 1, the square pin portion 13 is formed by cutting and twisting in the vicinity of
Is a tapered portion formed on the surface of the shaft portion 12 in the vicinity of. By providing the twisted portion 12a having weakened strength on the shaft portion 12 as described above, the head portion 11 is tightened by a tool while the square pin portion 13 is held unrotatable, as described later. Therefore, the twisting portion 12a is twisted by the torque.

Here, as shown in FIG. 1, the twisted portion 12a is formed by a tapered portion in the present embodiment, but it is not particularly limited to a tapered shape. Usually, the tapered portion shown in FIG. 1 is generally used because the twisted portion 12a can be formed by reducing the thickness of the shaft portion 12 along the outer periphery in the axial direction. However, in addition to this, as shown in FIG. 12, for example, the twisted portion 12a is formed by forming one or two or more recesses on the surface of the shaft portion 12 that partially reduce the thickness of the shaft portion 12. You can also do it. That is, the twisting portion 12a may have any shape, structure or the like as long as it can be reliably twisted by the torque applied to the head 11 of the lock pin 10, and the shape and size thereof. The structure and the like can be arbitrarily selected depending on, for example, the ease of manufacturing and processing, the thickness of the shaft portion 12, the size of the capsule 14 to be incorporated, and the like.

As shown in FIGS. 2 and 3, the capsule 14 is a hollow member built in from the shaft portion 12 to the twisting portion 12a and the square pin portion 13, and as shown in FIG.
A hollow portion 14a is provided inside. The hollow portion 14a is formed in the capsule 14 so as to be located from the shaft portion 12 to the square pin portion 13 via the twisting portion 12a. In this way, the square pin portion 1 is inserted from the shaft portion 12 through the twisting portion 12a.
By arranging and forming the hollow portion 14a over 3, the head portion 11 is tightened in a state in which the square pin portion 13 is held unrotatably, and the twisting portion 12a is twisted to hollow the capsule 14. The part 14a comes to be cut.

Here, as shown in FIG. 2, the capsule 14 is formed so that the cross section of the hollow portion 14a is substantially circular. However, the cross section of the hollow portion 14a is not particularly limited to the perfect circular shape. Generally, a hollow portion 14a having a substantially circular cross-section is selected for ease of manufacturing, etc., but the hollow portion 14a of the capsule 14 is easy to manufacture and can be filled with a liquid or gas (described later) to be filled. The shape can be arbitrary according to the type, quantity, etc. For example, in FIG.
As shown in, the hollow portion 14a of the capsule 14 may have an elliptical cross section. In this way the hollow part 1
When 4a is formed to have a substantially elliptical cross section, the torque when the twisting part 12a is twisted is more likely to be applied to the hollow part 14a, as compared with the case where the cross section has a perfect circular shape.
Has a preferable shape in that it is reliably cut.

In this embodiment, the capsule 1
The hollow portion 14a of No. 4 is filled with the liquid. Specifically, the liquid filled in the hollow portion 14a of the capsule 14 is the paint 15a (FIGS. 9 and 10).
reference). The paint 15a filled in the hollow portion 14a is
In order to reliably detect and detect that the lock pin 10 has been unlawfully twisted and the seal has been released, for example, paint of red or vermilion color, fluorescent paint, etc. that can be visually recognized and discriminated from the outside should be used. Preference is given to using.

By thus filling the hollow portion 14a of the capsule 14 with the liquid coating material 15a, the lock pin 1
The hollow portion 1 of the capsule 14 is formed by twisting the 0 twisting portion 12a.
By cutting 4a, the paint 1 in the hollow portion 14a
5a flows out to the outside, and flows out and adheres to the periphery of the sealing portion where the lock pin 10 is mounted (see FIGS. 9 and 10). As will be described later, since the case (upper case 20 and lower case 30) for accommodating the control board of the gaming machine is made of transparent plastic, the paint 15a that has flowed out.
The adhesion can be confirmed and discriminated from the outside from a glance.
Therefore, in the case where the paint 15a adheres to the sealed portion, it can be immediately detected and found that the sealing is released.

The liquid filled in the hollow portion 14a of the capsule 14 may be, for example, a liquid having an odor other than the paint 15a. Capsule 14
If the lock pin 10 is twisted due to an improper unsealing action when a liquid having an odor is filled in the inside, at the same time, the improper act is performed due to the smell of the liquid flowing out from the capsule 14. You can inform others. This makes it possible to detect fraudulent activity without requiring visual confirmation, and also to identify fraudulent persons on-site, so that fraudulent unsealing behavior can be more completely prevented and eliminated. You can The odorous liquid to be filled in the capsule 14 can be colored in order to leave a trace of improper sealing release, and can also be used in combination with the adhesive 15b shown in the second embodiment described later. Is also possible.

As a substance to be filled in the hollow portion 14a of the capsule 14, a gas as well as a liquid may be filled. For example, by filling the inside of the capsule 14 with a colored or odorous gas, the lock pin 10 is twisted due to an improper unsealing action, and at the same time, the gas is released from the capsule 14 to cause the smell described above. As in the case of liquid, it is possible to inform the surroundings that a fraudulent activity has been performed. In particular, in the case of gas, it is possible to visually confirm even from a remote place where the odor does not reach, and it is more effective as a means to monitor fraudulent unsealing acts from the surroundings and identify fraudulent persons etc on the spot. Target. The gas filled in the capsule can be used in combination with the liquid described above.

[Manufacturing Method of Lock Pin] Next, a manufacturing method of the lock pin of the present embodiment having the above-mentioned structure will be described with reference to FIG. In this embodiment, the lock pin 10 having the capsule 14 integrally built therein is manufactured by insert molding in which the capsule 14 is inserted into the mold. First, as shown in FIG. 4A, the capsule 14 having the hollow portion 14a is formed.
In the capsule 14, a hollow portion is formed in a divided rod-shaped member, and the hollow portion is filled with a liquid paint or the like, and then integrally joined, so that the hollow portion 14a can be filled with the paint to form the gapcell 14. it can. The capsule 14
Like the lock pin 10, is preferably formed of a synthetic resin, and a resin material that does not melt by heat when the lock pin 10 is molded is selected.

Next, as shown in FIG. 4 (b), one end side of the formed capsule 14 is held by the capsule holding device 40, and is placed in the cavities of the dies 41 and 42 for integrally molding the lock pin 10. Arrange. Since one end of the capsule 14 is held by the capsule holding device 40, the molds 41, 4
It is inserted and fixed at a predetermined position in the second cavity. Next, as shown in FIG. 4C, the resin material forming the lock pin 10 is injected through the injection port 43 into the cavity of the molds 41 and 42 into which the capsule 14 has been inserted and fixed, and Mold 10. As a result, the lock pin 10 integrally including the capsule 14 is molded. Finally, as shown in FIG. 4D, the molded lock pin 1
0 is taken out from the molds 41 and 42, and the one end side holding portion 10a of the capsule and the injection mark portion 10b of the resin material, which project on the surface of the lock pin 10, are scraped off.

As a result, the lock pin 10 containing the capsule 14 is completed. As described above, in the present embodiment, the capsule 14 filled with the liquid or the like is used as the mold 41,
The lock pin 10 is manufactured by an insert molding method in which the lock pin 10 is inserted into the shaft 42 and is injection-molded. With such a manufacturing method, the lock pin 10 according to the present embodiment can be efficiently manufactured in large quantities at low cost. However, as long as the lock pin having the same structure as the lock pin 10 according to the present embodiment can be manufactured, other manufacturing methods can of course be used.

[Sealing Structure Using Lock Pin] Next, the sealing structure of the fixed object and the fixed object which are sealed and fixed by using the lock pin 10 of the present embodiment will be described with reference to FIGS. This will be described with reference to FIG. As shown in FIG. 5, in the present embodiment, an upper case 20 that serves as a control board case of a gaming machine in which a fixed object and a fixed object that are sealed by using the lock pin 10 are openably and closably fitted to each other, and The lower case 30 is configured. Further, the upper case 20 and the lower case 30 are adapted to be attached to a gaming machine not shown, and the gaming machine and the case (upper case 20 and lower case 30)
However, the fixed object and the fixed object that are sealed by using the lock pin 10 are configured.

[Upper Case and Lower Case] The upper case 20 and the lower case 30 are openably fitted to each other to form a case for accommodating a control board of a gaming machine (not shown), and the whole is transparent. It has a housing structure made of plastic. In the upper case 20, as shown in FIG.
The control board housed inside is provided with a plurality of wiring openings 20a to which wires and the like can be connected from the outside, and fine holes for radiating the control board are formed. Further, the upper case 20 is provided with a hinge portion (not shown) that is rotatably engaged with the hinge portion 30b of the lower case 30.

As shown in FIG. 5, the lower case 30 is provided with a thin plate-shaped guide portion 30a protruding along the case opening. The guide portion 30a engages with the inner circumference of the opening of the upper case 20. Then, the upper case 20 and the lower case 30 are integrally fitted. Further, the lower case 30 is provided with a hinge part 30b which is rotatably engaged with a hinge part (not shown) of the upper case 20 (see FIG. 5).
By b, the upper case 20 and the lower case 30 can be assembled so as to be openable and closable.

Then, the upper case 20 and the lower case 3
As shown in FIG. 5, a lock pin attaching portion 21 and a lock pin fixing portion 31 which are sealing portions are formed at corresponding positions at the opening / closing portion of 0 (the edge portion on the side opposite to the hinge portion). By mounting the lock pin 10 on the pin mounting portion 21 and the lock pin fixing portion 31, the upper case 20 and the lower case 30 are sealed. A lock pin attachment portion 21 is formed on the upper case 20 on the side surface side of the case (right side of the case in FIG. 5). The lock pin attaching portion 21 on the side surface of the case is a lock pin fixing portion 31 (not shown) provided on the gaming machine side when the case (upper case 20 and lower case 30) is attached to the gaming machine side not shown. The case (upper case 20 and lower case 30) and the gaming machine are sealed by mounting the lock pin 10 at a position corresponding to. Although not specifically shown in the present embodiment, the lock pin fixing portion 31 on the gaming machine side has the same configuration as the lock pin fixing portion 31 provided in the lower case 30 described below.

[Lock Pin Attaching Section and Lock Pin Fixing Section] The lock pin attaching section 21 and the lock pin fixing section 31 constituting the sealing structure according to this embodiment will be described below. [Lock Pin Attachment Part] As shown in FIG. 5, the lock pin attachment part 21 is provided on the upper case 20 side which is a fixed object,
A round hole 22 through which the lock pin 10 is inserted is provided. This round hole 22 constitutes a hole portion in the present invention. The round hole 22 is, as shown in FIGS.
The upper surface side of 1 is the square pin portion 13 and the shaft portion 1 of the lock pin 10.
2 and the head 11 are circular holes with a diameter slightly larger than that of the head 11 (upper surface side cylindrical hole), and the hole of this diameter continues in a cylindrical shape to the bottom side of the lock pin mounting portion 21. ing.

On the bottom surface of the lock pin attachment portion 21, the square pin portion 13 and the shaft portion 12 of the lock pin 10 can pass, and the head portion 11 is locked so as not to pass. A through hole (bottom surface side through hole) having a slightly larger hole diameter is formed. By providing such a round hole 22, the lock pin 10 which is inserted from the upper surface side of the lock pin attachment portion 21 passes through the upper surface side cylindrical hole, and the square pin portion 13 is inserted.
Also, the shaft portion 12 passes through the bottom surface side through hole and projects toward the lower case 30 side, and the head portion 11 is locked to the bottom portion of the top surface side cylindrical hole.

In this embodiment, since the round hole 22 has a constant depth (the length of the upper surface side cylindrical hole), the lock pin 10 is completely attached (as will be described later). In FIG. 8), the lock pin 10 cannot be removed unless a tool such as a screwdriver is inserted and used. Moreover, since the head 11 of the lock pin 10 is formed with the groove 11a with which a tool such as a driver is engaged, the lock pin 10 can only be seen from the outside as a screw-type screw. Therefore, a cheating person inevitably tightens the lock pin 10 by using a screwdriver or the like, or he or she can surely twist the lock pin 10 so as to leave a trace of unsealing. It has become.

[Lock pin fixing part] Lock pin fixing part 3
As shown in FIG. 5, 1 is a lower case 30 which is an object to be fixed.
(Or a gaming machine (not shown)) is provided with a square hole 32 into which the square pin portion 13 of the lock pin 10 that has passed through the round hole 22 of the lock pin attachment portion 21 is fitted. This square hole 32
Form the square hole portion in the present invention. Square hole 32
The square-shaped square pin portion 13 is formed in a square shape so as to be non-rotatably fitted in the direction around the axis, and has a hole portion of the same shape slightly larger than the outer shape of the square pin portion 13. In the present embodiment, the square-shaped bottomed hole corresponding to the square-shaped square pin portion 13 is formed. Therefore, the square hole 32 is formed by the square pin portion 13
However, for example, in the case of the octagonal shape as shown in FIG. 11, the octagonal shape corresponding to the square pin portion 13 is formed.

The square hole 32 is provided with a lock pin fixing claw 33 so that the fitted and fitted square pin portion 13 is held in the square hole 32 in a non-removable manner. The lock pin fixing claw 33 is a flexible claw portion protruding from the square hole 32 and having a certain elasticity. In this embodiment, the lock pin fixing claw 33 is integrally protruded from the bottom surface of the lock pin fixing portion 31. The claw portion of the book is formed so as to protrude along the height direction of the square hole 32. That is, in the present embodiment, the opposing two upright surfaces of the square hole 32 are formed as the lock pin fixing claws 33.

The lock pin fixing claw 33 is shown in FIG.
As shown in FIG. 8, the tip portion (the upper end portion in FIGS. 6 to 8) has a claw that fits on the outer edge of the square pin portion 13 on the shaft portion 12 side. As shown in the drawing, the tips of the claws are each formed in a tapered shape that inclines toward the inside of the square hole 32. By providing the lock pin fixing claw 33 having such a configuration, when the square pin portion 13 of the lock pin 10 that has passed through the round hole 22 of the lock pin attaching portion 21 is inserted into the square hole 32, it becomes a tapered shape. The tip part of the inclined lock pin fixing claw 33 is bent outward while the square pin part 13 is being bent.
When the square pin portion 13 completely passes through the tip claw portion, the tip claw portion returns to its original position by elasticity, and the square pin portion 1
3 is fitted and locked to the outer edge of the rear end side.

With the lock pin fixing claw 33, the square pin portion 13 mounted in the square hole 32 is held so as not to fall off from the square hole 32 by fitting the claw portion to the outer edge. In addition, in the present embodiment, the pair of opposed lock pin fixing claws 33 is provided, but as long as the square pin portion 13 fitted into the square hole 32 can be held irremovably, two or more are provided. Of course, it is possible, and the number is not particularly limited. Therefore, for example, all of the four vertical surfaces of the square hole 32 having a square shape can be configured by the lock pin fixing claw 33.

By providing the lock pin attaching portion 20 and the lock pin fixing portion 30 as described above, the lock pin 1
0 is inserted into the round hole 22 of the upper case 20, and the lower case 3
The upper case 20 and the lower case 30 (or game machine), which are fixed objects and fixed objects, are fixed by being fitted and held in the square holes 32 on the 0 (or gaming machine) side. Then, when the head 11 of the lock pin 10 is tightened by a tool, the twisted portion 12a is twisted, the hollow portion 14a of the capsule 14 is cut, and the liquid paint in the hollow portion 14a flows out to the outside. become.

As shown in FIG. 5, a plurality of lock pin attaching portions 20 and lock pin fixing portions 30 are provided in the upper case 20 and the lower case 30, respectively, and each lock pin attaching portion 20 and lock pin fixing portion 30. Is provided with a plurality of round holes 22 and square holes 32 respectively corresponding thereto. This does not seal all the round holes 22 and the square holes 32 at a time, but, for example, first uses one round hole 22 and the square holes 32 for sealing, and seals after a certain period of time. By changing the location, the sealed location can be changed regularly according to the schedule. In this case, if a symbol such as "A, B, C, D, E, F" or a number is attached near each round hole 22, it is possible to manage the change of the sealing position on a regular basis. It is convenient for

By regularly changing and using the plurality of round holes 22 and square holes 32 in this manner, it is possible to manage and grasp the place where the paint has been legally unsealed and the paint adheres. It can be distinguished from unauthorized unsealing by fraud. In addition, if the sealing points are changed regularly in this way, only the administrator or the like can know which sealing point is to be used and when. It is also possible to specify the time of fraudulent activity depending on the location. Of course, all round holes 22 and square holes 32 at a plurality of positions may be used at the same time for sealing, for example, in order to completely eliminate fraudulent acts, depending on the usage mode and the like.

[Operation of Sealing Structure Using Lock Pin] Next, the operation of the sealing structure using the lock pin according to the present embodiment configured as described above will be described with reference to FIGS.
Will be described with reference to. Lock pin 1 according to the present embodiment
When the upper case 20 and the lower case 30 are sealed by using 0, first, as shown in FIG. 6, the upper case 20 and the lower case 30 are fitted to each other, and the lock pin attachment portion 21 and the lock portion of the opening / closing portion are locked. Match the position of the pin fixing portion 31. Then, the lock pin 10 is inserted into the round hole 22 from the upper surface side of the lock pin attachment portion 21 on the upper case 20 side, and the head portion 11 is pressed from above (see FIG. 7).

As shown in FIG. 7, the lock pin 10 inserted and pressed from the upper surface side into the round hole 22 has the entire lock pin passing through the upper surface side cylindrical hole and the square pin portion 13 and the shaft portion 12 at the bottom surface. It passes through the side through hole and projects to the lower case 30 side. The square pin portion 13 protruding toward the lower case 30 has a square hole 3
2 is inserted into the square hole 32 while bending the tip claw portion of the lock pin fixing claw 33 outward. Then, when the square pin portion 13 completely passes through the tip claw portion of the lock pin fixing claw 33 by being pressed from above, the tip claw portion returns to its original position due to elasticity, and as shown in FIG. Part 1
3 Fit and lock to the outer edge of the rear end side. At this time, the head 11
Is locked to the bottom of the round hole 22 on the lock pin mounting portion 21 side. As a result, the square pin portion 13 of the lock pin 10 is completely fitted into the lower case 30, which is the fixed object, and the entire lock pin is held unrotatable (state shown in FIG. 8). The above series of operations of inserting and fitting the lock pin 10 is completed at once by pressing the lock pin 10 inserted from the round hole 22 on the upper case 20 side from above, and complicated sealing work and the like can be performed. No need at all.

Then, in this state, when the head 50 of the lock pin 10 is tightened by the tool 50 inserted from the lock pin attaching portion 21 side of the upper case 20, as shown in FIG. Is added, the twisting portion 12a is twisted, and the capsule 14 built in the lock pin 10 is cut. When the capsule 14 is cut, the capsule 1
The paint 15a such as red filled in the inside of the 4 is the twisted portion 12a.
Simultaneously with the twisting, it flows out from the capsule 14 and flows out and adheres to the lock pin attachment portion 21, the lock pin 31 and its surroundings (see FIGS. 9 and 10).

Therefore, the lock pin 10 and the upper case 2
0, when the lower case 30 is used as a sealing structure for a control board case of a gaming machine, a cheating person who attempts to open the case illegally tightens the head 11 to loosen the lock pin 10 with a tool, and As a result, the twisted portion 12a is twisted, the coating material 15a in the capsule 14 flows out, and a trace of improper sealing release is clearly left around. Twisting part 12
When a is twisted and the paint 15a flows out from the capsule 14, as shown in FIG. 10, it flows out and adheres to the periphery of the sealed part of the case, so this can be confirmed from the outside at a glance, and the adhered paint is It is almost impossible to wipe it off completely. As a result, if an unauthorized door is opened, it will not be possible to hide it, and it will be immediately detected and discovered by the confirmation work of the administrator or the like.

Further, the square hole 32 into which the lock pin 10 is fitted
Since the square pin portion 13 is held by the lock pin fixing claws 33 so as not to fall off, the lock pin 10 once fitted cannot be removed as shown in FIG. Therefore, when a cheating person twists the lock pin 10 to unlawfully release the seal, the twisted square pin portion 13 remains in the square hole 32. It is impossible for a person to hide the wrongdoing by wearing another lock pin that is forged.

As a result, evidence of fraudulent acts is left in a clear and irrecoverable state, and fraudulent acts can be reliably detected and detected. Even when the administrator of the gaming machine or the like legally releases the lock pin 10, the lock pin 1 is engaged by engaging the driver or the like with the groove 11a of the head 11.
By twisting 0, the screwing portion or the case can be broken or cut as in the conventional sealing structure to release the sealing. Therefore, there is almost no burden of a proper unsealing work, and the upper case 20 and the lower case 30 once unsealed can be repeatedly used by changing the round hole 22 and the square hole 32. .

As described above, according to the present embodiment, the case (the upper case 20 and the lower case 30) is simply sealed by using the simple, small and lightweight lock pin 10.
With regard to the illegal unsealing act, the evidence can be left as a clear and irreparable trace, and the unlawful act can be surely and swiftly detected, which is extremely effective as an anti-fraud measure. Particularly, the lock pin 10 according to the present embodiment has only a simple structure formed by integral molding of synthetic resin or the like, and a circular hole 22 and a square pin through which the lock pin 10 is inserted are formed in a sealed portion such as a case. The effective sealing structure according to the present embodiment can be realized only by providing the square hole 22 into which the portion 13 is fitted. Therefore, the sealing structure including the lock pin 10 becomes extremely simple, and the sealing work can be completed simply by pushing the lock pin 10 into the round hole 22 and the square hole 32 and mounting it. Become.

As a result, in the sealing structure using the lock pin of this embodiment, unlike the conventional sealing structure, the lock pin 10 is used for sealing only by a simple structure without providing a complicated and large structure. The structure can be realized, and the manufacturing cost for realizing the sealing structure can be significantly reduced. Further, the sealing work does not require complicated work such as screw tightening work, and is only a very simple work of pushing the lock pin 10 into the mounting portion. Can be significantly reduced. Then, when a cheating person twists the lock pin 10 to unlawfully release the seal, the paint 15a flows out and adheres, and
Since the twisted square pin portion 13 remains in the square hole 32, it becomes impossible to conceal the wrongdoing, and the evidence of the wrongdoing is left in a clear and irreparable state. It is possible to detect and detect actions reliably.

Furthermore, the upper case 20 and the lower case 30 (and the gaming machine) that have been once fixed and sealed are only required to tighten the head portion 11 of the mounted lock pin 10 with a tool to twist the twisted portion 12a. Since the door can be opened, separated, etc. by releasing the seal, when performing a proper seal release or door opening work by the administrator, etc.
Since it suffices to twist the lock pin 10 without breaking or cutting the case or the screwed portion as in the conventional case,
For example, even when the maintenance and management of the control board of the game machine is performed, the burden of the work of releasing the sealing can be greatly reduced. Moreover, in this way, the case, screwing parts, etc. are destroyed,
According to the sealing structure of the present embodiment that does not require cutting or the like,
Cases where the seal has been legally released by the administrator, etc.
It can be reused, wasteful costs such as cases can be reduced, and resources can be effectively used.

[Second Embodiment] Next, a sealing structure using a lock pin according to a second embodiment of the present invention will be described with reference to FIG. FIG. 13 is an enlarged cross-sectional view of a main part of the sealing structure using the lock pin according to the second embodiment of the present invention, in which the lock pin attached to the lock pin attachment portion of the case is loosened with a tool to open the case. As a result of the door being opened, the twisted portion shows a state in which the adhesive has flowed out from the capsule in the twist lock pin and the case cannot be opened.

As shown in the figure, the sealing structure using the lock pin according to the present embodiment is a modified embodiment of the above-described first embodiment, in which the capsule 14 built in the lock pin 10 has an adhesive agent. 15b is filled, and the other components are the same as in the first embodiment.
Therefore, the same components as those in the first embodiment are denoted by the same reference numerals in the drawings, and detailed description thereof will be omitted.

That is, the lock pin 10 of the present embodiment.
The liquid filled in the hollow portion 14a of the capsule 14 is the adhesive 15a. Here, as the adhesive 15b with which the capsule 14 is filled, it is preferable to use a quick-drying, instantaneous adhesive having a quick adhesive action.
It is more desirable to color the adhesive by mixing paint or the like in order to clearly leave a trace of unauthorized release of sealing.

According to this embodiment in which the capsule 14 is filled with the adhesive in this way, as shown in FIG. 14, when the lock pin 10 is twisted by an illegal act, the lock pin 10 flows out from the capsule 14 simultaneously with the twisting. Depending on the adhesive used, the upper case 20
The adhesive 15b flows out between the lower case 30 and the lower case 30, and the two cases are bonded together. As a result, in the present embodiment,
It will not be possible to open the case itself, and it will be possible to prevent and eliminate fraudulent activities more thoroughly.

[Third Embodiment] Next, FIG. 14 and FIG.
With reference to, a lock pin according to a third embodiment of the present invention and a sealing structure using the lock pin will be described. Figure 1
4 is a perspective view showing a lock pin according to a third embodiment of the present invention. FIG. 15 is an enlarged cross-sectional view of a main part of the sealing structure using the lock pin according to the present embodiment, showing a state in which the hole of the lock pin mounting portion of the upper case and the lock pin are engaged and temporarily mounted. Shows.

As shown in these figures, the lock pin according to the present embodiment and the sealing structure using the lock pin are provided in the upper case 20 and the lock pin 10 of the control board case of the gaming machine, which is a fixed object. It is provided with an engaging structure which is engaged with and disengageable from each other. Specifically, first, as shown in FIG. 15, an engaging groove 13a is formed along the outer periphery of the square pin portion 13 of the lock pin 10. The engagement groove 13a is a groove formed on the surface of the square pin portion 13 along the axial direction.

On the other hand, the lock pin mounting portion 2 of the upper case 20
A lock pin engaging claw 22a is formed on the inner periphery of the bottom-side through hole of the round hole 22 that is a hole provided on the bottom surface of the first plate 1. The engagement groove 13a of the square pin portion 13 and the lock pin engagement claw 22a of the round hole 22 are formed so as to engage with each other in a freely detachable manner. Here, as shown in FIG. 16, the engagement groove 13a formed in the square pin portion 13 has a round hole 2a.
It is preferable to form the surface of the head portion 11 of the lock pin 10 in the same plane (so-called flush) as the upper surface of the lock pin attachment portion 21 while being engaged with the second lock pin engagement claw 22a. In this way, the temporarily fixed lock pin 10 is entirely accommodated in the round hole 22 and is inadvertently pressed to fit into the lower case 30 side or the round hole 2
It can be surely prevented from falling off from 2, and is more preferable as a temporary fixing means.

In this embodiment, as a temporary fixing engagement structure for the square pin portion 13 and the round hole 22, an engagement groove 13a is formed on the square pin portion 13 side, and a lock pin engagement claw is formed on the round hole 22 side. 22
Although a is provided, the square pin portion 13 and the round hole 22 are provided.
The structure of the present embodiment is not particularly limited as long as it can be engaged and disengaged between the members. For example, even if a plurality of concave portions are formed on the surface of the square pin portion 13 and a projection that engages with the plurality of concave portions is detachably formed on the inner peripheral side of the round hole 22, the present embodiment The same effect as in the case of can be obtained.

As described above, the square pin portion 1 of the lock pin 10
According to the present embodiment in which the engagement structure that can be engaged and disengaged is provided between the round hole 22 on the side of the upper case 20 and the upper case 20, according to the present embodiment, as shown in FIG. )
The lock pin 10 can be engaged in the round hole 22 of the upper case 20 in a temporarily fixed state before the lock pin 10 is fitted into the square hole 32. The lock pin 10 that is temporarily engaged with the round hole 22 in this way can be fitted into the square hole 32 on the lower case 30 side by pushing the head 11. As a result, the lock pin 10 can be engaged and attached to the upper case 20 side in a temporarily fixed state in advance before the final sealing operation is performed. Head 11 of the lock pin 10 provided
It can be completed simply by pushing in, and the sealing work can be performed more easily and quickly, and the work load on the administrator or the like can be further reduced.

It is needless to say that the lock pin structure of the present invention is not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the present invention. For example, in each of the above-described embodiments, the lock pin according to the present invention is applied as a sealing means for a control board storage case of a gaming machine such as a pachinko machine, but the application target of the present invention is for a control board of a gaming machine. It is not limited to a storage case. That is, the lock pin according to the present invention and the sealing structure using the lock pin require a sealing structure from the viewpoint of fraud prevention, and quick and reliable discovery and detection of fraud, etc. are required. A sealing structure and sealing means suitable for sealing between a fixed object and an object to be fixed in which a proper sealing release operation is performed, and the object thereof is not limited to the control board housing case of the gaming machine. Therefore, the present invention can be applied as a sealing structure that seals the opening / closing portion of the control board housing case of the gaming machine so that the door cannot be opened, and the sealed case and the gaming machine cannot be removed or separated. It can also be used as a sealing structure for stopping, and can be applied to any object as long as it is a fixed object and an object to be fixed that cannot be opened and cannot be separated. .

[0086]

As described above, according to the lock pin of the present invention, the method of manufacturing the lock pin, and the sealing structure using the lock pin, only a simple, small, and lightweight structure is provided.
Sealing work can be performed easily and quickly, and the presence or absence of unauthorized opening can be reliably detected and discriminated by leaving the trace of the door open in a clear and unobscured state. The door can be easily opened without breaking or cutting fixed objects such as cases and fixed objects. Accordingly, it is possible to provide a lock pin structure suitable as a sealing means for a control board housing case of a game machine such as a pachinko machine or a slot machine.

[Brief description of drawings]

FIG. 1 is a perspective view showing a lock pin according to a first embodiment of the present invention.

FIG. 2 is a plan view, (b) is a front view, and (c) is a bottom view showing the lock pin according to the first embodiment of the present invention.

FIG. 3 is an enlarged front view of the cross section of the main part, showing the lock pin according to the first embodiment of the present invention.

4A and 4B are process diagrams showing a method of manufacturing a lock pin according to the first embodiment of the present invention, where FIG. 4A is a capsule forming process, and FIG. 4B is a process of inserting a capsule holding one end into a mold;
The step of fixing, (c) shows the step of injecting a resin material into the mold in which the capsule is inserted to mold the lock pin, and (d) shows the step of scraping off unnecessary parts of the lock pin taken out from the mold. There is.

FIG. 5 is a schematic perspective view of a sealing structure using a lock pin according to the first embodiment of the present invention, showing a case of sealing a control board housing case of a gaming machine using the lock pin. .

FIG. 6 is an enlarged cross-sectional view taken along the line AA shown in FIG. 5, showing a state immediately before the lock pin is inserted into the lock pin attachment portion of the case.

FIG. 7 is an enlarged cross-sectional view taken along the line AA shown in FIG. 5, showing a state in which the lock pin is inserted into the lock pin attachment portion of the case.

8 is an enlarged cross-sectional view taken along the line AA shown in FIG. 5, showing a state where the lock pin is completely attached to the lock pin attachment portion of the case.

FIG. 9 is an enlarged cross-sectional view taken along line AA shown in FIG. 5, and as a result of loosening the lock pin attached to the lock pin attachment portion of the case with a tool to open the case, the twisted portion is twisted. Shows the closed state.

10 is an enlarged cross-sectional view taken along the line AA shown in FIG. 5, showing a state in which the paint has flowed out from the capsule in the lock pin as a result of the case being opened, and a trace of the door being left. There is.

FIG. 11 shows a lock pin according to the first embodiment of the present invention,
It is a perspective view which shows the example of a change of a square pin part.

FIG. 12 shows a lock pin according to the first embodiment of the present invention,
It is a perspective view which shows the example of a change of a twist part.

FIG. 13 is a plan view, (b) is a front view, and (c) is a bottom view showing a modified example of the capsule of the lock pin according to the first embodiment of the present invention.

FIG. 14 is an enlarged cross-sectional view of a main part of a sealing structure using a lock pin according to a second embodiment of the present invention, in which the lock pin attached to the lock pin attachment portion of the case is loosened with a tool to open the case. As a result of the door being opened, the twisting portion shows a state in which the adhesive has flowed out from the capsule in the twist lock pin and the case cannot be opened.

FIG. 15 is a perspective view showing a lock pin according to a third embodiment of the present invention.

FIG. 16 is an enlarged cross-sectional view of a main part of a sealing structure using a lock pin according to a third embodiment of the present invention, in which the hole of the lock pin mounting portion of the upper case engages with the lock pin for temporary mounting. It shows the state of being performed.

[Explanation of symbols]

10 Lock pin 11 head 11a groove 12 Shaft 12a twisting part 13 square pin 13a engagement groove 14 capsules 14a hollow part 15a paint 15b adhesive 20 upper case 21 Lock pin mounting part 22 round hole 22a Lock pin engaging claw 30 lower case 31 Lock pin fixing part 32 square hole 33 Lock pin fixing claw

Claims (15)

[Claims] 1. A head having a groove with which a tip of a tool engages, a shaft portion integrally continuous with the head, and an angular square pin portion integrally continuous with the shaft portion, A capsule having a hollow portion formed on the shaft portion and a hollow portion that extends from the shaft portion to the screw portion and the square pin portion, and the square pin portion is non-rotatably held. A lock pin, characterized in that, by tightening the head portion with a tool, the twisting portion is twisted and the hollow portion of the capsule is cut. 2. The lock pin according to claim 1, wherein a liquid is filled in the hollow portion of the capsule. 3. The lock pin according to claim 2, wherein the liquid filled in the hollow portion of the capsule is paint. 4. The lock pin according to claim 2, wherein the liquid filled in the hollow portion of the capsule is an adhesive. 5. The lock pin according to claim 2, 3 or 4, wherein the liquid filled in the hollow portion of the capsule has an odor. 6. The lock pin according to claim 1, 2, 3, 4, or 5, wherein a gas is filled in the hollow portion of the capsule. 7. The lock pin according to claim 1, 2, 3, 4, 5 or 6, wherein the hollow portion of the capsule has a substantially circular cross section. 8. The lock pin according to claim 1, 2, 3, 4, 5, or 6, wherein the hollow portion of the capsule has a substantially oval cross section. 9. The twisted portion comprises a tapered portion formed on the surface of the shaft portion.
The lock pin according to 7 or 8. 10. The twisted portion comprises one or more recesses formed on the surface of the shaft portion.
Lock pin described in 4, 5, 6, 7, 8 or 9. 11. The method of manufacturing a lock pin according to claim 1, wherein a step of forming a capsule having the hollow portion, and one end side of the formed capsule are held to integrally form the lock pin. The step of arranging it in the cavity of the die that is to be molded, and the step of injecting a resin material into the cavity to mold the lock pin integrally encapsulating the capsule inside, and the molded lock pin Is removed from the mold, and the one-end side holding portion of the capsule and the injection mark portion of the resin material protruding from the surface of the lock pin are scraped off, and a method of manufacturing a lock pin. 12. A sealing structure for sealing a fixed object and an object to be fixed using the lock pin according to claim 1, wherein the fixed object has the lock pin inserted therethrough. The square pin portion and the shaft portion have a hole portion through which the head portion cannot pass, and the fixed object has the square pin portion of the lock pin that has passed through the hole portion. Is non-rotatably fitted around the axis, and
The fixed object has a square hole portion in which the fitted square pin portion is held so as not to fall off, and the lock pin is inserted into the hole portion and fitted and held in the square hole portion, And the object to be fixed is fixed, and the head portion of the lock pin is tightened by a tool, whereby the twisting portion is twisted and the hollow portion of the capsule is cut. The sealed structure. 13. A sealing structure using a lock pin according to claim 12, further comprising an engagement structure that engages with the inner periphery of the hole and the outer periphery of the corner pin of the lock pin so as to be engageable with and disengageable from each other. 14. A sealing structure using a lock pin according to claim 12, wherein the fixed object and the object to be fixed are formed of a control board case of a game machine that is fitted to each other so as to be openable and closable. 15. One of the fixed object and the to-be-fixed object comprises a control board case of a gaming machine, and the other comprises a gaming machine to which the control board case is attached.
A sealing structure using the lock pin described in 2, 13, or 14.