JPH11214866A - Sealing structure of pachinko board case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pachinko board case sealing structure wherein sealing cannot be easily loosened, and in the event of illegal opening, it can be easily detected. SOLUTION: The figures are of the cross-sections of a first boss 9 and a second boss 11, which are respectively provided on a cover and a case main body which are the major parts of a pachinko board case. First, a tapping screw 29 is screwed into a through hole 43 and a screw hole 45 to mutually fasten both the bosses 9 and 11. When a boss cover 13 is placed over a upper plane 31 and a notch 49 is engaged with teeth 39, sealing is completed (b). Since the boss cover 13 cannot be removed from the upper plane 31, the tapping screw 29 cannot be loosened. A first connecting part 47 and a second connecting part 15 are cut and the pair of bosses 7 are removed from a first base part and a second base part 17 at the right side of the figure to loosen the sealing. Thus, sealing cannot be easily loosened and a fact that the sealing has been loosened can be easily known.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a RO for a pachinko machine.
The present invention relates to a sealing structure of a substrate case for a pachinko machine for accommodating a control device such as M.

[0002]

2. Description of the Related Art Conventionally, a control device such as a ROM for controlling a pachinko machine is provided on the back side of each panel. These control devices are housed in a pachinko machine board case provided on the back side of the board.

[0003] Such a board case for a pachinko machine, after a maker first attaches a control device and closes the cover, after a failure of the control device or when a fraud is found by any means (hereinafter, specially referred to as a special case). ), The lid is never opened. However, after the initial installation of the control device, if the case body and lid of the pachinko machine substrate case are sealed so that the lid cannot be opened again, a special case occurs and the seal must be released. It will hinder you in case.

Therefore, there has been proposed a sealing structure in which the lid can be relatively easily opened, and instead, it is known that the sealing has been released (hereinafter, also referred to as opening). FIG. 13 shows an example of this. FIG. 13A shows the lid 11.
FIG. 13B is a view from the side of 0 (tentatively a plan view), FIG.
FIG. 13C is a front view, and FIG. 13C is a plan view after unsealing once. As shown in these drawings, the end of the lid 110 is bent along the side surface of the case body 100. The bent end forms a plurality of strip-shaped sealing plates 112a to 112d by cuts 115.

Further, screw holes 113a to 113d are formed in each of the sealing plates 112a to 112d. The first sealing is performed by screwing a screw 120 as shown in FIG. 14 into the screw hole 113a of the sealing plate 112a. FIG. 14 (a)
Is a plan view of the screw 120, and FIG. 14B is a front view of the screw 120. The screw 120 has a saw-toothed unevenness that catches on the head 121 only in the tightening direction. Thus, once tightened, screw 120 cannot be rotated in the opposite direction. Thereby, sealing is performed.

When a special case (for example, the necessity of inspection) occurs, as shown in FIG. 13C, the cutting portion 117a, which is a connecting portion between the sealing plate 112a and the upper surface of the lid 110, is cut with a nipper or the like. . When this inspection is completed and the second sealing is performed, the screw holes 1 in the sealing plate 112b shown in FIG.
A screw 120 is screwed into 13b and sealed. Thereafter, whenever a special case occurs, the sealing plate 112 in use is cut,
A screw 120 is screwed into the screw hole 113 of the unused sealing plate 112 for sealing.

That is, the fact that the sealing plate 112 has been cut indicates that the sealing has been broken, and the number of times that the sealing has been broken can be known from the number of cut sealing plates 112. For example, a special case should have occurred only once, but if there are two cut-off sealing plates 112, it can be understood that someone has illegally opened once.

[0008]

However, in the above-mentioned prior art as well, for example, the blade is cut into the screw 120 using a drill and rotated in the reverse direction, so that the screw 120 is cut without cutting the cutting portion 117a. Could be eliminated. After cheating, it is necessary to seal again, but it is anticipated that the screw that is brought in will be screwed into the screw hole 113a and used for sealing. In this case, the screw 1
The trace that the shape of the groove of the head is different from 20 remains,
Since it is not as clear as the traces in FIG.
There is a possibility that the discovery of the misconduct may be delayed.

In addition, the sealing structure as shown in FIG. 13 has another problem that, apart from this problem, the number of times of unsealing is limited. That is, in the embodiment of FIG. 13, sealing can be performed only four times. In addition, the first time is performed at the time of manufacturing the substrate case for the pachinko machine, so the maximum number of sealing is three times. This means that it can be opened three times by a regular method, so it seems to be sufficient. However, in order to cope with unexpected misconduct, it is desirable that it can be opened any number of times.

The present invention has been made in view of these problems, and has a sealing structure for a substrate case for a pachinko machine according to claims 1 and 2 (hereinafter also simply referred to as a sealing structure).
It is an object of the present invention to provide a sealing structure that is difficult to open and that can be easily detected in case of unauthorized opening.

A third aspect of the present invention proposes a detailed embodiment of the second aspect of the present invention. A sealing structure according to a fourth aspect is intended to enable the sealing structure according to the second or second aspect to cope with a plurality of times of unsealing.

Still further, the sealing structure according to claim 5 is
It is intended to make it easier to understand the number of times the seal has been removed. The sealing structure described in claim 6 proposes a specific mode of the sealing structure described in claim 5.

[0013] The sealing structure according to claim 7 aims at increasing the robustness of the sealing according to claims 2 to 6. The sealing structure according to claim 8 proposes a detailed mode of the sealing structure according to claim 7.

Still further, the sealing structure according to claim 9 is:
The purpose is to be able to respond to any number of times of opening. Still another object of the present invention is to facilitate maintenance of a fixing means used for sealing.

[0015]

Means for Solving the Problems A sealing structure for a pachinko machine substrate case according to claim 1 of the present invention which has been made to solve the above problems, comprises: a case body for accommodating a pachinko machine circuit board; A lid for closing the case main body, wherein the lid and the case main body are sealed in a sealing structure of a pachinko machine substrate case for sealing the lid and the case main body so as to be difficult to detach from each other. A member,
A sealing unit having an operation unit that receives an operation for the sealing,
And a blocking portion for preventing the operation from being performed by covering at least the operation portion in a state where the sealing is performed by the sealing portion.

According to a second aspect of the present invention, there is provided a sealing structure for a pachinko machine substrate case, comprising: a case body accommodating a pachinko machine circuit board; and a lid for covering the case body. In a sealing structure of a pachinko machine substrate case for sealing a case main body so as to be difficult to detach from each other, a rod-shaped fixing means for fixing the lid body and the case main body to each other, and the inside of the case main body or the lid body Formed in any one of the through holes through which the fixing means passes, and the case body or the lid, which is formed in the other one of the ones and cooperates with the fixing means passing through the through hole. It is characterized by comprising a fixing auxiliary means for fixing the lid body and the case main body to each other, and a barrier portion for closing the through-hole through which the fixing means has passed so as not to be easily reopened.

According to a third aspect of the present invention, in the sealing structure of a substrate for a pachinko machine according to the second aspect, a first columnar member, wherein the through hole is formed in one bottom surface of the first columnar member.
A boss, a first connecting portion for easily connecting the first boss and the one, a second boss which is a substantially columnar member and has the fixing assisting means, and the case body is attached to the lid. When the lid is closed, the second boss and the other one are easily connected to each other at a position where the cooperation by the fixing means and the fixing auxiliary means through the through hole is possible. And a second connecting portion.

According to a fourth aspect of the present invention, in the sealing structure of a substrate case for a pachinko machine according to the third aspect, a plurality of the first connecting portions are provided on the one side and a plurality of the second connecting portions are provided. A connecting portion is provided on one side other than the one, and the first boss and the second boss are provided on each of the first connecting portion and the second connecting portion, respectively.

According to a fifth aspect of the present invention, in the sealing structure for a pachinko machine substrate case according to the fourth aspect, the barrier portion is connected to each of the first bosses so as to be openable and closable. The boss cover that covers the through hole by being provided, and a fixing portion that fixes the boss cover that covers the through hole so that it is difficult to reopen the boss cover.

According to a sixth aspect of the present invention, in the sealing of the pachinko machine substrate case according to the fifth aspect, the fixing means is a screw, and the fixing auxiliary means is capable of screwing the screw. The first boss is formed with a counterbore for hiding the head of the screw, the boss cover is a substantially flat plate-like member, and the fixing portion is formed of the boss cover. , With a notch formed on the circumference exposed when the lid is
An enclosing portion that is provided on the one bottom surface and substantially adheres to all side surfaces of the boss lid with the counterbore lid, and is flush with an exposed surface of the boss lid, and an inner periphery of the enclosing portion. And a claw that is projected and engages with the notch and is flush with the boss lid.

According to a seventh aspect of the present invention, in the sealing structure of a substrate case for a pachinko machine according to any one of the second to sixth aspects, the fixing means is a screw which cannot be loosened once tightened, The fixing assisting means is a female screw to which the screw can be screwed.

According to the present invention as set forth in claim 8, in the sealing structure for a substrate case for a pachinko machine according to claim 7, the screw is formed as a hole formed in a head for rotating the screw. A saw-shaped hole having a catch only in the tightening direction is formed.

According to a ninth aspect of the present invention, there is provided a case body for accommodating a circuit board for a pachinko machine, and a cover for covering the case body, so that the cover and the case body are difficult to detach from each other. In the sealing structure of a substrate case for a pachinko machine to be sealed, a first base portion detachably attached to the lid only in a state where the lid is detachable from the case main body; Only in a state where the lid can be detached from the main body, the second base that is detachable with respect to the case main body, the second base and the first base are respectively formed by the case main body and the first base. A base fixing means for fixing the second base and the first base to each other while being attached to the lid.

According to a tenth aspect of the present invention, in the structure for sealing a substrate case for a pachinko machine according to any one of the second to ninth aspects, a storage portion for storing the fixing means is provided. .

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The sealing structure according to the first aspect of the present invention seals a case body and a lid by operating an operation section provided in the sealing section. For example, when a bolt or a tapping screw is adopted as the sealing portion, these heads become an “operation portion”, and usually, turning the operation portion clockwise becomes an “operation” for sealing. .

After sealing using the sealing portion, the operation portion is covered with the blocking portion. In this case, the operation of the operation unit (particularly, the reverse operation for unsealing) is blocked by the blocking unit. Note that the blocking portion may cover a portion other than the operation portion, and may be a mode in which the operation portion can be covered even in a state where sealing is not performed. As a matter of course, in the case of the latter stage, it is necessary for the operator to take care to cover the operation unit after sealing.
Otherwise, sealing may not be possible.

In this embodiment, it is difficult to open the package because at least the blocking portion must be removed.
Moreover, even if the sealing structure is in a resealable mode, it is necessary to supplement the removed blocking portion in order to delay the detection of unauthorized opening. For example, when the above-described method using a drill is attempted, a hole is formed in the blocking portion, so that it is easier to understand than the above-mentioned trace of merely changing the shape of the groove of the screw head.

Therefore, according to this sealing structure, it is difficult to open the package, and if the package is illegally opened, it can be easily found. A substantially similar effect can be obtained by the sealing structure according to the second aspect. That is, in the sealing structure according to the second aspect, the attachment of the lid to the case body is performed by the stick-shaped fixing means. These include bolts, tapping screws, pins, thin wedges, dowels, and the like.

This is inserted into the through-hole, and the fixing assisting means (a female screw or nut if the fixing means is a bolt, a pilot hole if a tapping screw is used, and a corresponding shape and size if a wedge or dowel is used). The cover and the case body are fixed in cooperation with the hole (hole). Then, the through-hole is closed by a barrier portion (specifically, described later) so that the through-hole is difficult to reopen so that the fixing means is not removed from the through-hole.

In this embodiment, it is difficult to open the seal because the barrier must be removed. Moreover, even if the sealing structure is in a resealable mode, it is necessary to supplement the removed barrier portion in order to delay the detection of unauthorized opening. For example, when the above-described technique using a drill is attempted, a hole is formed in the barrier portion, and thus it is easier to understand than the above-mentioned trace that merely changes the shape of the groove of the screw head.

Therefore, according to this sealing structure, it is difficult to open the package, and if the package is illegally opened, it can be easily found. The main difference between the fixing means and the sealing part is whether or not the operation part is an essential requirement (the sealing part is essential, and the fixing means may or may not be present). If the fixing means has what can be regarded as an operating part (for example, if the fixing means is realized by a bolt, its head can be regarded as an operating part, but in the case of a dowel, it will not be obvious depending on its shape ), The fixing means can be regarded as a part of the sealing portion. For example, in the second aspect, if the fixing means has an operating portion, the fixing means, the through-hole, and the fixing auxiliary means correspond to the sealing portion. And in this case,
The barrier portion corresponds to the blocking portion.

The through holes need not be formed directly in the lid or the case body. The same applies to the fixing auxiliary means. An example in which these are not directly formed or provided is the embodiment of claim 3. That is, claim 3
In the sealing structure described in the above, the attachment of the lid to the case main body is performed by two types of columnar members provided respectively, that is, a first boss and a second boss (hereinafter, when the first boss and the second boss are not distinguished from each other). Or simply referred to as a boss when they correspond to each other) by using fixing means.

That is, the first boss and the second boss are indirectly provided on the case body (or the lid) via the first connecting portion and the second connecting portion, respectively. Both the first connecting portion and the second connecting portion are easily cut, and can be cut, for example, by using a cutting tool such as the above-mentioned nipper.

When the case body is covered with the lid, the through holes of the first boss and the screw holes of the second boss are aligned, so that the fixing means is passed through the through hole and cooperates with the fixing auxiliary means. When the first boss and the second boss are fixed, the case body and the lid are fixed to each other. In this fixed state, the fixing means cannot be pulled out of the through hole by closing the through hole with the barrier portion. Therefore, as in the case of the second aspect, it is difficult to open the package, and if the package is illegally opened, it can be easily found.

In addition, in the case of regular opening, the first
The connecting portion and the second connecting portion may be cut, and it is not necessary to remove the barrier portion. When there is only one pair of the first boss and the second boss, resealing cannot be performed, but the parts contained in the case body can be reused without the troublesome work of removing the barrier portion. be able to.

Further, a plurality of the first connecting portions are provided on the lid or the case body (that is, the same number of the first bosses is provided. Further, the second boss fixed to the first boss is provided). If two connecting portions are provided on the other side, sealing can be performed a plurality of times. That is, it is possible to cope with a plurality of unsealing operations while maintaining the effect of the third aspect.

For example, when it is necessary to open the first connection portion and the second connection portion, the first connection portion and the second connection portion are cut off, and the second connection is performed using an unused pair of the first boss and the second boss (hereinafter referred to as a boss pair). Is sealed. If an unused boss pair still remains, further unsealing and resealing can be performed. As described above, when a large number of first bosses and a large number of second bosses are provided, it is also possible to increase the strength of the sealing itself by fixing a plurality of bosses simultaneously, not one by one. If the number used for the sealing is determined in advance, the number of times the sealing has been released can be known as in the embodiment shown in FIG.

Note that the mode in which a plurality of boss pairs are provided as described above is not limited to the mode in which all the first bosses are provided on the lid or the case body. For example, the two first bosses may be provided on the lid, and the two first bosses may be provided on the case body. This is the sealing structure according to claim 4,
It can be interpreted as a sealing structure that combines two aspects in which “plurality” is two and “one” is mutually changed. Note that this aspect may be slightly changed, and the aspect in which the first boss provided on the case body is one may be interpreted as follows. In other words, in the sealing structure of claim 3, one side is a case body, the number of first bosses is limited to one, and one side is a lid and two or more are two or more. What is necessary is just to interpret as the sealing structure which combined the sealing structure of item 4. In addition, any number of boss pairs may be provided at various positions within a range that does not hinder the fixing operation and does not depart from the gist of the present invention.

However, when a plurality of first bosses and the like are provided, the effect of the barrier portion may be reduced. That is, the barrier is forcibly removed by breaking or the like, the fixing means is pulled out of the through hole, the lid is opened, the ROM is exchanged, etc., and then the lid is closed. And fix it again. In this case, although there is a difference that there is no barrier portion as compared with the case where the sealing is performed properly, the difference is difficult to understand because the unused first boss also has no barrier portion.

In order to solve this problem, according to the fifth aspect, the barrier portion is fixed to the first boss so that the boss lid is openably and closably connected to the first boss and the boss lid closing the through hole is difficult to reopen. Section. In this manner, in order to forcibly remove the barrier portion, at least the boss lid needs to be removed. On the other hand, the unused first boss has the boss lid open.

As described above, the difference between whether or not unauthorized opening has been performed and whether or not unauthorized opening has been performed becomes clear. Seals can be easily found. As a specific mode of the sealing structure according to the fifth aspect, it is conceivable to make the sealing structure as described in the sixth aspect.

That is, in claim 6, the boss lid is
It is a substantially flat member, and a cutout is formed on both sides in the thickness direction of the flat plate, on the side exposed when the lid is closed. In addition, this boss lid is configured to close the through-hole by performing a counterbore lid described later.

A screw is used as the fixing means, and a screw hole is used as the fixing auxiliary means if the screw can be screwed. The first boss has a counterbore for hiding the head of the screw, an enclosing portion which is substantially in close contact with all side surfaces of the boss lid covered with the counterbore, and which is flush with the boss lid. A claw projecting from the inner periphery and engaging with the notch of the boss lid is formed with a claw flush with the boss lid. That is, the surrounding portion is raised from the one bottom surface in which the through hole is formed by substantially the thickness of the flat plate.

When the flat boss lid is used as a counterbore lid, the boss lid fits into the inner periphery of the surrounding portion, and the claws projecting from the surrounding portion engage with the cutouts of the boss cover. . That is,
Sealing can be performed simply by fastening the first boss and the second boss with screws and fitting the boss lid to the inner periphery of the surrounding portion. Even if the boss lid is to be removed, the boss lid, the surrounding portion, and the claws are flush with each other, so that there is no place to catch a fingertip or the like. Therefore, it is difficult to remove the boss lid. In this embodiment, the fixing portion is realized by a notch, a surrounding portion, and a claw.

As described above, according to the sealing structure of the sixth aspect, the lid can be countered and the sealing can be easily performed without using a tool or the like. In the sealing structure according to the seventh aspect, the screw for fastening the boss cannot be loosened once tightened. That is,
This means that the screw and the fixing portion provide double sealing.

Therefore, according to the sealing structure of the seventh aspect, the strength of the sealing itself can be increased. In addition, as a specific example of such a screw, for example, an aspect as described in claim 8 can be mentioned.

That is, in the sealing structure according to the eighth aspect, the screw has a saw-shaped hole which is caught only in the tightening direction as a hole formed in the head for rotating the screw. It is supposed to be. This screw is just as shown in FIG. In this case, the number of parts is one, which is the same as that of the finished screw.

Therefore, according to the sealing structure of the eighth aspect, the strength of the sealing itself can be increased without increasing the number of components. In order to achieve another problem to be solved by the present invention, that is, sealing at an arbitrary number of times, an embodiment according to claim 9 may be adopted.

That is, in the ninth aspect, the first base portion detachably provided to the lid body and the second base portion detachably provided to the case body are fixed by the base portion fixing means. By fixing, it is indirectly fixed. However, the first base portion is detachable only when the lid is detachable from the case main body (the same applies to the second base portion. Here, the "removable state" means And detached state).

In this case, even if the first base portion and / or the second base portion needs to be destroyed (usually) in order to be unsealed, the unsealing can be made detachable. If the first base part and the second base part which have become old are removed and new first base parts and the second base part are attached, sealing can be performed again. In this case, if resealing can be performed using one of the base portions (or a part of both base portions), it is not necessary to remove it. After that, when it becomes unusable after several unsealings, the base may be replaced with a new one.

Since the first base portion and the like can be detached only when the lid body is detachable from the case body, it is impossible to remove the sealing by removing the first base portion together. Can not. Therefore, the sealing strength is not threatened. Therefore, it is possible to cope with any number of times of opening.

In this embodiment, the barrier portion is not required, but may be provided. Further, the base portion fixing means may be configured to also serve as the fixing means (further, a configuration also serving as fixing auxiliary means). It may be provided with a first boss, a first connecting portion, or the like, or may be provided with a plurality of these. However, in this case, the first connecting portion does not directly connect the case body (or the lid) and the first boss, but indirectly connects via the first base (or the second base). (The same applies to the second connecting portion). In particular, when the first boss is realized as having the boss lid and the fixing portion as in the aspect according to claim 5, the case main body may have a complicated shape. (Or lid), it is possible to manufacture each separately, and it is expected that a rise in cost is suppressed.

[0053] By adopting the embodiment of the above-mentioned claim, it is possible to provide an embodiment in which the effects achieved by the claim are similarly exhibited. The sealing structure according to the tenth aspect includes a storage portion that stores the fixing unit. If a spare fixing means is put in this storage portion, it is not necessary to prepare a fixing means when resealing. In particular, it is convenient when a special screw typified by the screw 120 shown in FIG. 14 is used for fastening or in a mode in which sealing can be performed a plurality of times.

In the case where the sealing portion of the first aspect is formed separately from the object to be fixed as a fixing means, a sealing portion housing portion for housing the sealing portion is provided. Is also good. In this case, an effect that is substantially the same as that of the storage section is obtained.

[0055]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 is a perspective view showing a substrate case 1 for a pachinko machine to which the present invention is applied. As shown in the figure, the board case 1 for a pachinko machine is a substantially rectangular parallelepiped case, and a cover 5 is placed on a case body 3 to which a circuit board constituting a control device is fixed. Is protected. The fixing of the case main body 3 and the lid 5 is performed by four pairs of bosses 7 provided respectively on the upper surface and the lower surface in this figure. The boss pair 7 includes a first boss 9 provided on the lid 5 side and a second boss 11 provided on the case body 3 side.
The main part is configured. Note that each first boss 9 is provided with a boss lid 13.

FIG. 2 is a perspective view showing a state before the cover 5 is attached to the case main body 3. The second boss 11
A connecting portion 15 is provided, and the second connecting portion 15 is fixed to the case main body 3 via the second base portion 17.
In addition, four second bosses 11 are fixed to one second base portion 17 via a second connecting portion 15.

On the other hand, the first boss 9 also has a first connecting portion (described later).
Is provided, the first connecting portion is fixed to the first base portion 19, and the first base portion 19 is attached to the lid 5.
A glass 21 is fitted on the front surface of the lid 5 on the front side of the figure, and when an unauthorized modification (for example, ROM replacement) is performed on the circuit board 23, if the modification is of a low degree, it is visually observed. You can check it.

FIG. 3 shows details of the boss pair 7. FIG.
It is the perspective view which took out and expanded only the part of the boss pair 7. The figure shows a state in which the first boss 9 and the second boss 11 are fastened with the tapping screw 29,
1 and 2 are changed so that the boss 9 faces upward.

As shown in the figure, the first boss 9 is a substantially columnar member, and the disc-shaped boss lid 13 has two
They are connected by a connecting portion 33 of the book. A fold 35 is formed in the connecting portion 33, and when the connecting portion 33 is bent here, the boss lid 13 can be overlapped with the upper surface 31. The upper surface 31 corresponds to one bottom surface of the present invention.

The upper surface 31 is provided with an annular surrounding portion 37 along its periphery. The inner diameter of the surrounding portion 37 and the height from the upper surface 31 are substantially equal to the outer diameter and the thickness of the boss lid 13, respectively. Four claws 39 protrude from the inner peripheral surface of the surrounding portion 37. 41 is a counterbore formed to hide the head of the tapping screw 29, 43 is a through hole formed in the first boss 9 for screwing the tapping screw 29, and 45 is a second boss for substantially the same purpose. A screw hole 47 formed in the hole 11 is the above-described first connecting portion.

On the other hand, the second boss 11 is
The connecting portion 15 is provided and a screw hole 45 is formed. Each part (except for the tapping screw 29) of the boss pair 7 described above is formed using ABS resin as a raw material. Reference numeral 49 denotes a notch that engages with the claw 39 when the boss lid 13 is overlapped with the upper surface 31. This is shown in FIG. FIG. 4A is a plan view of the first boss 9 and FIG.
4B is an enlarged perspective view showing the vicinity of the claw 39 immediately before the boss lid 13 is superimposed on the upper surface 31, and FIG. 4C is an enlarged perspective view showing a state in which the superposition is performed.

As shown in FIG. 4 (a), the claw 39 and the notch 49 are formed at positions where the inner periphery of the enclosing portion 37 and the inner edge of the boss lid 13 in this drawing are equally divided into four in the circumferential direction. Have been. As shown in FIG. 4B, the notch 49 has a form in which the outer periphery of the boss lid 13 is cut off obliquely.

When the connecting portion 33 is bent at the fold 35, the notch 49 approaches the claw 39 as shown in FIG. 4 (b). The lid 13 is fitted into the surrounding portion 37, and FIG.
State. In this state, the boss lid 13 is superimposed on the upper surface 31, and the claw 39 is engaged with the notch 49 to prevent the superposition from being released. In addition, the upper surface (hatched surface) of the boss lid 13, the upper portion of the surrounding portion 37, and the upper portion of the claw 39 are flush with each other. Since there is no place on this surface where a fingertip or the like is hooked, it is difficult to peel off the boss lid 13 from the upper surface 31. These surrounding portions 37, claws 39,
The notch 49 corresponds to the fixing portion of the present invention.

The operation performed when the sealing is actually performed will be described with reference to FIG. FIG. 5A shows a tapping screw 2.
9 is a cross-sectional view of a state immediately before fastening at a position corresponding to AA in FIG. 4A, and FIG. 5B is a cross-sectional view illustrating a state in which sealing by the boss pair 7 is completed. FIG. Although the first base portion 19, the second base portion 17, the case body 3, the lid 5 and the like are actually present on the right side of the drawing, they are omitted.

As shown in FIG. 5 (a), the tapping screw 29 is screwed so as not to be detached from the through hole 43 before fastening. First, the tapping screw 29 is screwed into the through hole 43 and the screw hole 45 from the state of FIG. The fastening is completed when the back side of the head of the tapping screw 29 contacts the bottom surface of the counterbore 51 further formed in the counterbore 41. Then, the boss lid 13 is superimposed on the upper surface 31,
When the notch 49 is engaged with the claw 39, the sealing is completed, and FIG.
The state shown in FIG. As is clear from the above explanation,
The tapping screw 29 corresponds to the fixing means of the present invention. Since the tapping screw 29 has a head for receiving an operation of rotating clockwise, the head is regarded as an operation unit, the tapping screw 29 is regarded as a part of a sealing unit, and further, a boss cover is provided. 13 can also be considered a blocking part. Further, the first boss 9, the second boss 11, the boss lid 13, the tapping screw 29, the through hole 43, the screw hole 45, the first connecting portion 47,
And the 2nd connection part 15 is equivalent to the base part fixing means of this invention.

In this state, since it is difficult to peel off the boss lid 13 from the upper surface 31, the tapping screw 29 cannot be loosened. Therefore, the first boss 9 and the second boss 1
1 cannot be disengaged. If the lid 5 needs to be removed from the case body 3, the first connecting portion 47
And the second connecting portion 15 are cut off, and the first connecting portion 15 on the right side of FIG.
The boss pair 7 is detached from the base 19 and the second base 17.

FIG. 6 shows the attachment of the first base 19 to the cover 5 and the attachment of the second base 17 to the case body 3. FIG. 6A shows a state before mounting.
(A) shows a state after attachment. In this figure, the circuit board 23 is omitted.

As shown in FIG. 6 (a), four grooves 53 are formed in the lid 5, and the first base portion 19 is formed by connecting two plates forming upper and lower surfaces to four plates. It has a structure connected by strip-shaped boards. The strip-shaped plate enters the groove 53, and the first base 19 is attached to the case body 3 by the two plates forming the upper and lower surfaces sandwiching the edge of the lid 5. The second base portion 17 has substantially the same structure as the first base portion 19, and is attached to four grooves 55 formed in the case main body 3. That is, the first base 19 and the second base 17 are detachably attached to the lid 5 and the case body 3, respectively.

In this manner, both base portions 17 and 19 are attached,
As shown in FIG. 6B, if the cover 5 is put on the case body 3 and fastening is performed using any of the tapping screws 29, the cover 5 cannot be removed from the case body 3. At the same time, in the state shown in FIG.
The base 19 and the second base 17 cannot be removed.

For example, to remove the first base 19 from the lid 5, it is only necessary to move the first base 19 with respect to the lid 5 in the direction of arrow C. The second boss 11 and the second base portion 17 prevent this movement. The second base portion 17 cannot be removed because the first boss 9 and the first base portion 19 become obstacles. Further, even if the lid 5 is to be peeled off from the case main body 3 with the fastening being performed, the fastening state between the first boss 9 and the second boss 11 prevents this.

Now return to FIG. FIG. 1 shows four pairs of bosses 7 provided above and below the board case 1 for a pachinko machine.
This shows a state in which sealing is performed using one upper and one lower part.
The sealing can be performed by a simple procedure as described in FIG. 5, and the unsealing is performed by the first connecting portion 47 and the second connecting portion 15.
By cutting. Since the first connection portion 47 and the second connection portion 15 are made of a thinly formed ABS resin as a raw material, the first connection portion 47 and the second connection portion 15 can be easily cut with a blade such as a nipper.

According to the substrate case 1 for a pachinko machine configured as described above, sealing can be easily performed without any tools other than a screwdriver for closing the tapping screw 29. Then, the first connecting portion 47 and the second connecting portion 15
Can be opened with a very simple operation.

Further, the boss lid 13 not used for sealing
Takes the form of getting up from boss 7
Used bosses and unused bosses can be distinguished at a glance. As shown in FIG. 1, if one boss pair 7 is used for sealing in each of the upper and lower portions, the number of times the sealing has been released can be easily known.

If all the boss pairs 7 are used up, the entire first base 19 and second base 17 may be replaced with new ones. In this case, it is possible to newly perform sealing and to remove the sealing. Further, the boss pair 7, particularly the first boss 9 side, is provided with the boss lid 13 and the first base portion 19.
, It has a complicated shape, but since it is separate from the lid 5, each can be manufactured separately. Therefore, it is possible to suppress an increase in both costs (the same applies to the second boss 11 side).

As described above, the substrate case 1 for a pachinko machine has been described as an embodiment to which the present invention is applied. However, the present invention is not limited to this embodiment and can be implemented in various modes. For example, in the above embodiment, the first boss 9
Is provided on the lid 5 and the second boss 11 is provided on the case body 3.
If the fastening of the tapping screw 29 is not hindered, it may be reversed. Further, some first bosses 9 may be provided on the lid 5, and the remaining first bosses 9 may be provided on the case body 3.

Although the first boss 9 and the second boss 11 are columnar, other shapes such as a square pole or a column having an elliptical cross section may be used. Further, the shapes of both bosses may be different. For example, the second boss 11 may be a column and the first boss 9 may be a pentagonal column. In other words, the number and shape requirements for both bosses 9 and 11 are such that when the case body 3 is covered with the cover body 5, the through holes 43 and the screw holes 45 are aligned, and the tapping screw 2
9 only needs to be possible. If the shape of the first boss 9 is changed in this way, the shape of the boss lid 13 may be changed accordingly. However, it is desirable that the shape of the surrounding portion 37 correspond to the shape and thickness of the outer periphery of the boss lid 13. For example, if the shape of the boss lid 13 is made square, the inner peripheral side of the surrounding portion 37 is made to be a square of the same size, and the height is made equal to the thickness of the boss lid 13. In this case, the boss lid 13 cannot be opened as in the above-described embodiment, and the sealed state can be maintained.

However, the fixing portion may be changed to a mode other than the surrounding portion 37, the claw 39, and the notch 49, for example, as shown in FIG. Note that parts having the same names as those of the above-described embodiment are denoted by the same reference numerals. In this embodiment, FIG.
As shown in (a), the notch 49 is removed from the boss lid 13,
Instead, a flexible band 61 is provided. Band 61
Is formed with a serrated check piece K. On the other hand, the first boss 9 is provided with a stopper 63. The stopper 63 has a U-shape, and has an insertion port 65 formed therein. Boss lid 13
When the band 61 is inserted into the insertion port 65 while superimposing on the upper surface 31, the result is as shown in FIG. FIG. 8 shows the inside of the stopper 63 at this time.

As shown in FIG. 8, on the wall surface of the band 61 in the insertion port 65, a check piece Y which can be locked with the check piece K is provided. When the band 61 is inserted into the insertion slot 65, in the insertion direction, the elastic deformation of the band 61 and the stopper 63 causes
It is possible to move, but in the return direction, the check piece K,
Y is locked and cannot be moved.

Therefore, the first boss 9 which employs the band 61 and the stopper 63 as the fixing part also has the surrounding part 37,
The same effect as that of the nail 39 and the notch 49 is obtained. Further, the fixing portion can be realized by the one shown in FIG. In this embodiment, the ear piece 67 is provided on the boss lid 13,
Further, a projection 69 is provided on the ear piece 67. Protrusion 69
The root part 69a is tightly packed, but the tip part 69b
Is cylindrical. On the other hand, the first boss 9 is also provided with an ear piece 71 which is aligned with the ear piece 67 when the boss lid 13 is superimposed on the upper surface 31, and has a hole 73 through which the projection 69 is inserted. Have been.

The boss lid 13 is superposed on the upper surface 31 so that the projection 6
9 is inserted into the hole 73, as shown in FIG. 9B.
With this alone, the boss lid 13 can be easily removed, so the tip portion 69b is heated and crushed. Then, as shown in FIG. 9C, the boss lid 13 cannot be removed. When the distal end portion 69b is crushed, the distal end portion 69b can be crushed with a small force because the distal end portion 69b is hollow. As described above, even when the ear pieces 67 and 71, the protrusion 69, and the hole 73 are employed as the fixing portion, the same effects as those of the embodiments shown in FIGS.

Further, the fixing section may be realized by a configuration as shown in FIG. In this embodiment, as shown in FIG. 10A, a projection 75 is provided on the boss lid 13, and a hole 79 into which the projection 75 enters is formed on the upper surface 31. Protrusion 75
The side surface of the boss lid 13 is formed with an unevenness 81, an adhesive is put into the hole 79, and the boss lid 13 is attached to the upper surface 31 as shown in FIG.
The projections 75 can be firmly fixed to the holes 79 when they are polymerized. As described above, even when the protrusion 75 and the hole 79 are employed as the fixing portion, substantially the same effects as those of the embodiments shown in FIGS. 3, 7, and 9 can be obtained.

The method of attaching the first base 19 to the lid 5 is also described below.
Modes other than FIG. 6 may be adopted. For example, in the embodiment shown in FIG. 11, the first base portion 19 is formed into a sheath-like member, and a member 83 corresponding to a sword inserted in the sheath is provided on the lid 5. Member 8
3 and the lid 5 are fixed only by the part 83a.
The first base 19 is moved in the direction of arrow E to
Into the hole 81 for mounting. The portion 83a is the first
It also serves as a stopper for movement of the base 19 in the direction of the arrow E. The attachment of the second base 17 to the case body 3 is performed in the same manner, but the moving direction G when inserting the member 85 into the hole (not shown) of the second base 17 is opposite to the arrow E. ing.

FIG. 11B shows a state in which the mounting of both base portions 17 and 19 is completed. From this state, the case body 3
When the cover 5 is put on the cover 5 and fastening is performed with the tapping screw 29, the first base portion 19 and the second base portion 17 cannot be removed as in the embodiment shown in FIG. For example, to remove the first base 19 from the lid 5, it is necessary to move the first base 19 in the direction opposite to the arrow E, but the first base 19 is fastened to the first base 19 via a boss pair or the like. Second base 17
However, it cannot be removed because it abuts on the portion 85a to prevent this movement. Conversely, even if the user attempts to remove the second base 17 from the case body 3, the first base 19, the part 83
Since a prevents movement in the direction opposite to the arrow G, it cannot be removed.

Therefore, the first base 19 shown in FIG.
The method of attaching the second base portion 17 can provide substantially the same effects as the embodiment shown in FIG. Further, as shown in FIG.
May be provided. The box 91 corresponds to the storage section of the present invention. In this drawing, the first boss 9 has a tapping screw 2
Although the screw 9 is screwed, the step of screwing the tapping screw 29 into the first boss 9 becomes unnecessary by providing the box 91 and inserting the tapping screw 29 therein. That is,
In the above-described embodiment, the tapping screws 29 had to be screwed into all the through holes 43 regardless of whether or not the unsealing was performed. What is necessary is just to seal. In addition, in a mode in which the tapping screw 29 is screwed into the through hole 43, if the box 91 is provided, the spare tapping screw 29 can be inserted here.

In place of the tapping screw 29, FIG.
May be used. In this case, the boss lid 13 and the screw 120 can keep the sealed state doubly, so that the first connecting portion 47 and the second connecting portion 15 can be protected.
It is more difficult to open the package without cutting it.

In order to maintain the double sealing state, the fixing means may be a mode other than the screw 120. Other modes can be adopted as long as they are loosened so that the boss pair 7 cannot be unfastened. Also, the first
Although the ABS resin was used as a material of the boss 9 and the second connecting portion 15, a synthetic resin such as polycarbonate and vinyl chloride and a material other than the synthetic resin are used as long as cutting or molding at the time of sealing is not hindered. It does not matter.

[Brief description of the drawings]

FIG. 1 shows a substrate case 1 for a pachinko machine to which the present invention is applied.
It is a perspective view of.

FIG. 2 is a perspective view showing a state before the cover 5 is attached to the case body 3 of the board case 1 for the pachinko machine;

FIG. 3 is an explanatory diagram showing details of a first boss 9 and a second boss 11;

FIG. 4 is an enlarged view for explaining sealing by a boss lid 13;

FIG. 5 is a cross-sectional view for explaining a sealing method.

FIG. 6 is an explanatory diagram showing how to attach the first base portion 19 to the lid 5, and the like.

FIG. 7 is an explanatory view showing a second mode of the fixing unit.

FIG. 8 is an explanatory view showing a mechanism of sealing by a band 61 and a stopper 63;

FIG. 9 is an explanatory view showing a third mode of the fixing unit.

FIG. 10 is an explanatory diagram showing a fourth mode of the fixing unit.

FIG. 11 is an explanatory view showing another mode of the first base portion and the second base portion.

FIG. 12 is an explanatory view showing a state in which a box 91 for storing the tapping screw 29 is provided on the first base 19;

FIG. 13 is an explanatory view of a conventional sealing structure of a pachinko machine substrate case.

FIG. 14 is an explanatory view of a screw used for a conventional sealing structure of a pachinko machine substrate case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Board case for pachinko machines 3 ... Case body 5 ... Lid 9 ... 1st boss 11 ... 2nd boss 13 ... Boss lid 15 ... 2nd connection part 17 ... 2nd base part 19 ... 1st base part 23 ... circuit board 29 ... tapping screw 31 ... upper surface (one bottom surface) 33 ... connecting portion 37 ... surrounding portion 39 ... claw 41 ... counterbore 43 ... through hole 45 ... screw hole 47 ... first connecting portion 49 ... notch

Claims (10)

[Claims] 1. A board case for a pachinko machine, comprising: a case body accommodating a circuit board for a pachinko machine; and a lid body for covering the case body, wherein the lid body and the case body are sealed so as to be difficult to detach from each other. In the sealing structure, a member for sealing the lid and the case main body, the sealing unit including an operation unit that receives an operation for the sealing, and at least sealing by the sealing unit And a blocking unit that covers at least the operation unit to prevent the operation from being performed when the operation is performed. 2. A board case for a pachinko machine, comprising: a case main body for accommodating a circuit board for a pachinko machine; and a lid for covering the case main body, wherein the lid and the case main body are sealed so as to be difficult to detach from each other. In the sealing structure, a rod-shaped fixing means for fixing the lid body and the case main body to each other, and a through hole formed in one of the case main body and the lid body and through which the fixing means passes. Fixing means for fixing the lid and the case body to each other in cooperation with the fixing means passing through the through-hole and being formed on one of the case body and the lid, which is not the one; And a barrier portion for closing the through-hole through which the fixing means has passed so as to make it difficult to re-open the substrate case. 3. The sealing structure for a pachinko machine board according to claim 2, wherein the first boss is a substantially columnar member, the first boss having the through hole formed on one bottom surface thereof, and the first boss. A first connecting portion that easily connects the one with the second connecting portion, a second boss that is a substantially columnar member, and that includes the fixing assisting means, and that, when the case main body is closed with the lid, A second connecting portion for easily connecting the second boss and the other one at a position where the cooperation by the fixing means and the fixing auxiliary means through the through hole is possible. A sealing structure for a substrate case for a pachinko machine. 4. The sealing structure of a substrate case for a pachinko machine according to claim 3, wherein a plurality of the first connection portions are provided on the one, and a plurality of the second connection portions are not the one. Wherein the first boss and the second boss are respectively provided at the first connection portion and the second connection portion, respectively. A sealing structure for a substrate case for a pachinko machine. 5. The sealing structure for a substrate case for a pachinko machine according to claim 4, wherein the barrier portion is connected to each of the first bosses so as to be openable and closable, and closed by closing the through hole. A sealing structure for a substrate case for a pachinko machine, comprising: a boss lid for performing the following operation; 6. The sealing of the pachinko machine substrate case according to claim 5, wherein the fixing means is a screw, the fixing auxiliary means is a screwing hole into which the screw can be screwed, The first boss is formed with a counterbore that hides the head of the screw, the boss lid is a substantially flat plate-like member, and the fixing portion is exposed when the boss lid is closed. A notch formed on the side periphery of the boss cover, which is provided on the one bottom surface and substantially adheres to all the side surfaces of the boss cover with the counterbore lid, and is flush with the exposed surface of the boss cover. And a pawl protruding from the inner periphery of the surrounding part and engaging with the notch to be flush with the boss lid. Sealing structure. 7. The sealing structure for a substrate case for a pachinko machine according to claim 2, wherein said fixing means is a screw which cannot be loosened once tightened, and said fixing auxiliary means is said screw. A sealing structure for a substrate case for a pachinko machine, characterized by being a female screw that can be screwed into the board. 8. The saw structure according to claim 7, wherein the screw is a hole formed in a head portion for rotating the screw, the saw having a hook only in a tightening direction. A sealing structure for a substrate case for a pachinko machine, characterized in that a hole having a shape of a circle is formed. 9. A board case for a pachinko machine, comprising: a case main body for accommodating a circuit board for a pachinko machine; and a lid for covering the case main body, wherein the lid and the case main body are sealed so as to be difficult to detach from each other. In the sealing structure of (1), a first base portion detachable from the lid body only in a state where the lid body is detachable from the case body, and the lid body is detachable from the case body. Only when it becomes the second state, which is detachable from the case body.
A base for fixing the second base and the first base to each other with the second base and the first base attached to the case body and the lid, respectively; A sealing structure for a substrate case for a pachinko machine, comprising: a base portion fixing means. 10. The sealing structure for a pachinko machine substrate according to claim 2, further comprising a storage portion for storing said fixing means. Construction.