JP2000116912A - Circuit board case for pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the circuit board case for a Pachinko machine which can prevent anyone from touching a sealed part of the circuit board after sealing to effectively prevent the sealing from unfair detaching. SOLUTION: The engaging part 23 of a cover member 4 is engaged with into the engaging port of a chassis 3 to attach the cover member 4 to the chassis 3. An engaging member 10 is fit into the second mounting hole 19 of a second protruding part fit over the upper side of the first protruding part 5A and the first mounting hole 15 of a first protruding part 5A to connect the engaging protrusion of the engaging member 10 the engaging hole 7 of the first protruding part 5A to connect the first protruding part 5A and the second protruding part 8A. A screw 11 is inserted into the through hole 10E of the engaging member 10 and screwed into the first protruding part 5A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board case for a pachinko machine, and more particularly, to a method of sealing a cover member to a chassis by locking with a locking member inserted into a mounting hole of each chassis and the cover member. The present invention relates to a board case of a pachinko machine capable of reliably detecting an improper act on a circuit board in a board case because the sealing cannot be released in a non-destructive manner.

[0002]

2. Description of the Related Art In a recent pachinko machine, a main board, which is one of circuit boards and has a ROM on which game contents of the pachinko machine are written, is mounted. Therefore, in order to prevent the game contents of the pachinko machine from being illegally changed, various sealing structures are applied to the main board on which the ROM is mounted. As a conventional example, an example of this sealing structure will be described with reference to FIGS. First, a schematic configuration of the sealing structure will be described with reference to FIGS. FIG. 11 is an exploded perspective view showing a sealing structure of a circuit board of a conventional pachinko machine. FIG. 12 is a diagram of a conventional pachinko machine 1
FIG. 2 is a view as viewed from an arrow P of FIG. 1, in which a first protrusion, a second protrusion, and a part of a screw are shown in a cross section.
As shown in FIG. 11, the sealing structure of the circuit board of the pachinko machine includes a main board 101 and a chassis 102 and a cover 10.
The sealing is performed at 3, but the following contrivance has been made.

[0003] That is, the chassis 102 to which the main board 101 is fixed is provided with eight first projecting pieces 104 projecting therefrom. A mounting hole 105 is provided. The cover 103 covering the main board 101 is provided with eight second projecting pieces 106 projecting therefrom.

As shown in FIG. 12, when the cover 103 is placed at a fixed position with respect to the chassis 102, the second projecting portion 106 is brought into contact with each of the first projecting portions 104. It becomes. Further, a second mounting hole 107 is provided in each of the second projecting pieces 106. As shown in FIG. 12, the second mounting hole 107 is
When the cover 103 is placed at a fixed position with respect to the chassis 102, each of the first mounting holes 105
They are located consecutively in series. In each of the second mounting holes 107, a screw 108 that advances in only one direction is temporarily fixed. Note that FIG. 12 is viewed from the arrow P in FIG. 11, and two sets of the first projecting piece 104, the second projecting piece 106, and the screw 108 are shown in cross section.

Next, an example of the sealing in the conventional example is shown in FIG.
3 will be described. FIG. 13 is a cross-sectional view showing an example when the main board of the pachinko machine according to the conventional example is sealed with a chassis and a cover. As shown in FIG. 13, when the cover 103 is placed at a fixed position with respect to the chassis 102, the right end (right side in FIG. 13) screw 108 is screwed into the second mounting hole 107 and the first mounting hole 105. Then, since the cover 103 is fixed at a fixed position with respect to the chassis 102, the main board 101 can be sealed with the chassis 102 and the cover 103. Further, since the screw 108 advances only in one direction, once screwed into the second mounting hole 106 and the first mounting hole 105, the screw 108 can be removed from the second mounting hole 106 and the first mounting hole 105. Disappears. Thereby, the cover 1
03 cannot be separated from the chassis 102, so that illegal acts on the main board 101 can be prevented.

In this conventional example, in order to effectively seal the main substrate 101, eight first projecting portions 104 are provided.
And eight second projecting pieces 106 as shown in FIG.
They are provided separately at four locations at opposite corners. Then, by screwing the pair of screws 108 temporarily fixed at diagonal locations, the main substrate 101 can be effectively sealed.

Next, an example of release of sealing in the conventional example will be described with reference to FIG. FIG. 14 is a plan view showing an example when the sealing of the circuit board of the pachinko machine according to the conventional example is released. As shown in FIG.
A pair of first mounting holes 10 located at opposite corners where
The first protruding piece 104 provided with the second mounting hole 107 and the second protruding piece 106 provided with the second mounting hole 107 are connected to the chassis 102 and the cover 1.
When the cover 103 is notched, the cover 103 can be separated from the chassis 102, whereby the sealing to the main board 101 can be released.

After that, the cover 103 is placed at a fixed position with respect to the chassis 102, and the first and second projections 104 and 106 which are not yet cut out from the chassis 102 and the cover 103 are diagonally opposed. If the pair of screws 108 temporarily fixed are screwed in the places to be sealed, the main substrate 101 can be sealed again. Here, as described above, a pair of screws 108 temporarily fixed at diagonal locations are used for reliable sealing to the main substrate 101, so that sealing to the main substrate 101 and release thereof are performed. Can be repeated four times.

Therefore, the main substrate 101 can be sealed again even if the sealing is released for the inspection of the main substrate 101 being sealed. Furthermore, since the notch marks of the first projecting piece 104 and the second projecting piece 106 can leave a trace of the release of the sealing with respect to the main substrate 101, it can be compared with the record of the release of the sealing. It can be determined whether the release of the seal is for inspection or fraud.

[0010]

However, since the screw 108 screwed into the second mounting hole 107 can freely contact from the outside, there is a problem that the screw 108 may be illicitly removed. Further, it is difficult to control the torque for screwing the screw 108 into the first mounting hole 105, and there is a problem that workability is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is intended to prevent the sealing portion for a circuit board from freely contacting after sealing, and to prevent the sealing from being improperly removed. It is an object of the present invention to provide a board case of a pachinko machine which can more effectively prevent the occurrence of the above-mentioned problem, and can easily perform the sealing and improve the workability. I do.

[0012]

According to a first aspect of the present invention, there is provided a board case for a pachinko machine, comprising: a circuit board for controlling an operation state of the pachinko machine; a chassis on which the circuit board is fixed; A pachinko machine having substantially the same size as the chassis and having a box-shaped cover member attached so as to cover the circuit board, and sealing means for sealing attachment of the cover member to the chassis. In the substrate case, the sealing means includes a locking member having a locking protrusion formed at least at one end thereof, and at least one locking member formed at a predetermined position of the chassis, wherein the locking member is inserted from one end side. A first mounting hole having a predetermined depth, a second mounting hole formed at a position of the cover member opposed to the first mounting hole, and having a predetermined depth into which the locking member is inserted from one end side; 1st mounting Or a recess formed inside the second mounting hole at a position facing the locking projection, and the other end of the first mounting hole or the second mounting hole in which the recess is formed is closed. The cover member is attached to the chassis by the locking member being fitted into the first mounting hole and the second mounting hole from one end side and the locking projection being locked in the concave portion. Is sealed.

[0013] In the board case of the pachinko machine according to the first aspect having the above-mentioned features, the sealing means for sealing the chassis on which the circuit board is fixed and the cover member attached so as to cover the circuit board is a chassis. A first mounting hole having a predetermined depth formed at a predetermined position of the cover member;
It comprises a second mounting hole of a predetermined depth formed at a position facing the mounting hole, and a locking member inserted from one end side into the first mounting hole and the second mounting hole. A locking projection is formed at an end of the locking member, and a recess is formed inside the first mounting hole and the second mounting hole at a position facing the locking projection. Further, the other end of the first mounting hole or the second mounting hole in which the concave portion is formed is closed. When the locking member is fitted inside the first mounting hole and the second mounting hole, the locking projection is locked in the concave portion, and the mounting of the cover member to the chassis is sealed. .
Thereby, the first mounting hole or the second
Since the other end of the mounting hole is closed, it is possible to prevent free contact with the locking projection of the locking member after sealing, and that the sealing is illegally removed. Can be effectively prevented. Further, since the sealing can be performed by fitting the locking member inside the first mounting hole and the second mounting hole, the sealing can be easily performed and the workability is improved. It becomes possible.

According to a second aspect of the present invention, there is provided a board case for a pachinko machine according to the first aspect, wherein the locking member is fitted into the first mounting hole or the second mounting hole. A plate member, and a plurality of elastic locking pieces that are vertically provided on an upper surface and a lower surface of the plate member, and the locking protrusions are formed at end portions. It is characterized in that it is inserted into one mounting hole and the elastic locking piece on the other side is inserted into the second mounting hole.

According to a second aspect of the present invention, there is provided a board case for a pachinko machine according to the second aspect, wherein the locking member is provided with the first mounting hole or the second mounting hole. And a plurality of elastic locking pieces which are vertically provided on the upper and lower surfaces of the plate member and have the locking projections formed at the ends. Further, the elastic locking pieces on one side are inserted into the first mounting holes, and the elastic locking pieces on the other side are inserted into the second mounting holes, and are respectively locked in the concave portions. Further, the open side end surfaces of the first mounting hole and the second mounting hole are closed. Thereby, by inserting the locking member into the first mounting hole and the second mounting hole whose other end portions are closed, the respective elastic locking pieces formed above and below the locking member are fitted. Since the locking projection can be engaged with the concave portion to perform sealing, the sealing can be easily performed, and the workability can be improved. Further, since the other end portions of the first mounting hole and the second mounting hole are closed, it is possible to prevent free contact with the locking projections of the locking member after sealing, and this sealing can be prevented. It is possible to effectively prevent the suspension from being illegally removed.

According to a third aspect of the present invention, there is provided a board case for a pachinko machine according to the first aspect, wherein the first mounting hole or the second mounting hole is formed at one edge. A contact portion that contacts the locking member, wherein the locking member is vertically attached to a plate member that contacts the contact portion and a surface of the plate member that contacts the corresponding contact portion; A plurality of elastic locking pieces each having the locking protrusion formed at an end thereof, wherein the locking member is configured to have the first mounting hole and the second mounting hole so that the plate member abuts on the abutting portion. It is characterized by being inserted into the mounting hole.

According to a third aspect of the present invention, there is provided a board case for a pachinko machine according to the third aspect, wherein the first mounting hole or the second mounting hole is provided at one edge. A contact portion that contacts the locking member is formed. In addition, the locking member has a plate member abutting on the corresponding contact portion, and a plurality of elastic locking pieces having a locking projection formed on an end portion are vertically provided on the surface on the contact side. Further, the other end side of the first mounting hole or the second mounting hole in which the concave portion is formed is closed. The locking member is inserted into the first mounting hole and the second mounting hole such that the plate member comes into contact with the contact portion, whereby the plate member of the locking member is connected to the first mounting hole. Each locking projection can be engaged with the concave portion by being inserted until it comes into contact with the contact portion formed at one end edge of the hole or the second mounting hole. Can be easily performed, and workability can be improved. In addition, the first in which the concave portion is formed is
Since the other end of the mounting hole or the second mounting hole is closed, it is possible to prevent free contact with the locking projection of the locking member after sealing, and to unjustly remove the sealing. Can be effectively prevented.

According to a fourth aspect of the present invention, in the board case of a pachinko machine according to the third aspect, the recess is formed by a locking hole, and the locking hole is not provided. The other end of the first mounting hole or the second mounting hole covers the outside of the locking hole.

According to a fourth aspect of the present invention, there is provided a board case for a pachinko machine according to the third aspect, wherein the recess is formed by a locking hole, and the locking hole is formed by a locking hole. The other end of the first mounting hole or the second mounting hole that is not provided covers the outside of the locking hole,
After sealing, it is possible to prevent free contact with the locking projection of the locking member, and it is possible to effectively prevent unauthorized removal of the sealing. In addition, since the concave portion is formed by the locking hole, the production becomes easy and the production cost can be reduced.

According to a fifth aspect of the present invention, there is provided a board case for a pachinko machine according to the third or fourth aspect, wherein the plate member has a through hole through which a screw is inserted at a substantially central portion. And screwed through the through hole.

According to a fifth aspect of the present invention, there is provided a board case for a pachinko machine according to the fifth aspect, wherein the plate member comprises:
It has a through hole in which a screw is inserted at a substantially central portion, and is screwed through the through hole, so that the locking member can be fixed more firmly, and this sealing is illegally removed. Can be more effectively prevented.

According to a sixth aspect of the present invention, there is provided a board case for a pachinko machine according to any one of the first to fifth aspects, wherein the plurality of first projecting pieces projecting from the chassis are provided. And a plurality of second protruding portions projecting from the cover member at positions opposing each of the first protruding portions, wherein the first mounting hole is provided on each of the first protruding portions. The second mounting hole is formed in each of the second protruding pieces, and the first mounting hole and the second mounting hole in which the locking member is inserted are formed. By notching the projecting piece and the second projecting piece from the chassis and the cover member, the sealing by the sealing means is released.

According to a sixth aspect of the present invention, there is provided a board case for a pachinko machine according to any one of the first to fifth aspects, wherein the first mounting hole is provided on the chassis. The second mounting holes are formed in each of the plurality of first protruding pieces protruding from the plurality of second protruding pieces, and the plurality of second protruding pieces protrude at positions facing the respective first protruding pieces of the cover member. It is formed on each of the protruding pieces. And
The first and second protruding portions, in which the first mounting holes and the second mounting holes into which the locking members are inserted, are cut out from the chassis and the cover member, whereby the sealing is achieved. The sealing by the means is released. Accordingly, the first and second projecting pieces into which the locking members are inserted are cut out from the chassis and the cover member, whereby the sealing by the sealing means is released, and the cover is removed. The member can be removed from the chassis. In addition, in the first protruding piece portion and the second protruding piece portion which have not been cut out, the fitting of the cover member to the chassis is re-sealed by fitting a locking member inside these. It becomes possible.

According to a seventh aspect of the present invention, in the board case of the pachinko machine according to any one of the first to sixth aspects, the locking member is provided via the chassis or the cover member. It is characterized by being visible.

According to a seventh aspect of the present invention, there is provided a board case for a pachinko machine according to any one of the first to sixth aspects, wherein the locking member comprises the chassis or the chassis. Since it is visible through the cover member, it is possible to easily and effectively check the sealing by the locking member.

Further, the board case of the pachinko machine according to claim 8 is the board case of the pachinko machine according to any one of claims 1 to 7, wherein the circuit board is a main board. I do.

According to an eighth aspect of the present invention, there is provided a board case of a pachinko machine according to any one of the first to seventh aspects, wherein the circuit board is a main board. Therefore, the inspection and the like for the main substrate being sealed can be more effectively repeated.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, first to third embodiments in which a board case of a pachinko machine according to the present invention is embodied as a board case of a main board will be described in detail with reference to the drawings. First, a board case of a pachinko machine according to the first embodiment will be described with reference to FIGS. First,
The overall configuration of the board case of the pachinko machine according to the first embodiment will be described with reference to FIG. FIG. 1 is an exploded perspective view showing a board case of the pachinko machine according to the first embodiment. As shown in FIG. 1, a board case 1 includes a main board 2 that is a circuit board, a chassis 3 to which the main board 2 is fixed, and a transparent cover formed of a synthetic resin such as a polycarbonate resin that covers the main board 2. It is composed of a member 4. The main board 2 is provided with a control circuit for controlling a prize ball payout control and the like of the pachinko machine.

The upper and lower edges of the chassis 3 (in FIG. 1,
The left and right edges) have four first projecting pieces 5A, 5B, 5
C, 5D, and 6A, 6B, 6C, 6D are provided so as to protrude at symmetrical positions. Lock holes 7 (see FIG. 2), which will be described later, are formed at two positions symmetrical with respect to the central axis of the side surfaces of the first protruding pieces 5A to 5D and 6A to 6D. At positions on the open upper and lower edges of the cover member 4 facing the first protruding pieces 5A to 5D and 6A to 6D, four second protruding pieces 8A, 8B, 8C, 8D,
And 9A, 9B, 9C, 9D are respectively provided so as to protrude.

The locking members 10, 12 (see FIG. 2) made of brown synthetic resin are fitted into the second protruding pieces 8A, 9A from above, as will be described later. Furthermore, each locking member 1
Screws (so-called one-way screws) 11 and 13 which advance in only one direction from the upper side of 0 and 12 are screwed in as described later, and the attachment of the cover member 4 to the chassis 3 is sealed (see FIG. 3). ).

Next, the first projecting pieces 5A to 5D, 6A to 6
The configuration of D, the second protruding pieces 8A to 8D, 9A to 9D, the locking members 10, 12, and the screws 11, 13 will be described with reference to FIG. In addition, each 1st protruding piece part 5A-5D, each 2nd protruding piece part 8A-8D, the locking member 10, and the screw 11,
Each of the first protruding pieces 6A to 6D, each of the second protruding pieces 9A to 9D, the locking member 12, and the screw 13 have substantially the same configuration, so that each of the first protruding pieces 5A to 5D, 2 protruding pieces 8A to 8
The configuration of D, the locking member 10, and the screw 11 will be described. FIG. 2 shows each of the first protrusions 5A to 5D, each of the second protrusions 8A to 8D, and the locking member 1 of the board case 1 according to the first embodiment.
FIG. 2 is a side cross-sectional view showing a screw 0 and a screw 11.

First, as shown in FIG. 2, each of the first projecting pieces 5A to 5D projecting from the chassis 3 has substantially the same shape, is substantially cylindrical, and has a lower edge closed. , First mounting hole 1
5 are formed. At approximately half the height of the side surface, locking holes 7 are formed at positions symmetrical with respect to the central axis. At substantially the center of the bottom surface, a mounting boss 16 is suspended from the upper end surface at a slightly lower height. A screw hole 17 having a predetermined depth into which the screw 11 is screwed is formed in the upper end surface of the mounting boss 16.

As shown in FIG. 2, each of the second protruding pieces 8A to 8A protruding from the open side edge of the cover member 4 is provided.
D has substantially the same shape, and has an inner diameter of each of the first projecting pieces 5.
The second attachment hole 19 is formed in a substantially cylindrical shape slightly larger than the outer diameter of A to 5D. When the cover member 4 is attached to the chassis 3 at a predetermined height from the lower end surface inside each of the second protruding pieces 8A to 8D, the upper end faces of the first protruding pieces 5A to 5D. The contact portion 18 is provided to project inward in a rib shape. The height from the lower surface of each abutting portion 18 to the lower surface of each of the second protrusions 8A to 8D is the same as the height from the upper end surface of each of the first protrusions 5A to 5D to each locking hole 7. It is formed larger than the height dimension. In addition, each of the adjacent second projecting pieces 8A to 8D is
0 is erected and connected. Thereby, the hook-shaped locking portion 23 provided on the open side edge (the left side edge in FIG. 2) of the cover member 4 is
4 (see FIG. 4), the second protruding pieces 8A to 8D cover the outer sides of the locking holes 7 of the first protruding pieces 5A to 5D. It is fitted on the upper side of the first protruding pieces 5A to 5D.

As shown in FIG. 2, the second protruding piece 8A
The brown locking member 10 to be inserted into the second protruding piece portion 8A is smaller than the inner diameter size of the second protruding piece portion 8A and is larger than the inner diameter size of the contact portion 18 in the form of a disk-shaped plate member 10A. Two elastic locking pieces 10 suspended from the lower surface of the plate member 10A
B, 10B, and each elastic locking piece 10
At the lower ends of B and 10B, locking projections 10C and 10C are formed. The locking projections 10C, 10C are elastically engaged with the locking holes 7, 7 formed in the first protruding piece portion 5A as described later, so that the engaging protrusions 7C, 10C are engaged inside the second protruding piece portion 8A. The connection between the stop member 10 and the first protrusion 5A is performed (see FIG. 3). At the center of the lower surface of the plate member 10A of the locking member 10, a mounting boss 10D is vertically provided, and a through hole 10E is formed to communicate the lower surface of the mounting boss 10D with the upper surface of the plate member 10A. The screw 11 is inserted into the through hole 10E as described later (see FIG. 3). Also,
The height of the mounting boss 10D from the lower surface of the plate member 10A is substantially equal to the height from the upper end surface of the mounting boss 16 to the upper end surface of the first projection 8A.

Next, the first protruding pieces 5A to 5D, the second protruding pieces 8A to 8D, the locking member 1
0 and the attachment of the screw 11 will be described with reference to FIG. FIG. 3 is a side cross-sectional view showing the mounting state of each of the first protrusions 5A to 5D, each of the second protrusions 8A to 8D, the locking member 10, and the screw 11 of the board case 1 according to the first embodiment. is there. As shown in FIG. 3, first, the locking portion 23 of the cover member 4 is engaged with the locking port 24 of the chassis 3 (see FIG. 4), and the cover member 4 is attached to the chassis 3. And
Until the lower surface of the plate member 10A of the locking member 10 comes into contact with the contact portion 18 of the second protruding piece 8A, the elastic locking piece 10B is firstly inserted through the second mounting hole 19 of the second protruding piece 8A. The protrusions 5A are fitted into the first mounting holes 15 of the protruding piece 5A, and the respective locking projections 10C, 10C formed at the lower end of the elastic locking piece 10B are inserted into the respective locking holes 7,
7 is engaged. Thereby, the second protruding piece 8A is connected to the first protruding piece 5A via the locking member 10. Subsequently, the screw 11 is inserted into the through hole 10E of the plate member 10,
The second projection 8A and the first projection 5A are firmly connected via the locking member 10 by being screwed into the screw holes 17 of the first projection 5A. After the screw 11 is inserted into the through hole 10E of the locking member 10, both the locking member 10 and the screw 11 are inserted into the second mounting hole 19 of the second projecting piece 8A from above, and the screw 11 is inserted. By screwing into the screw hole 17 of the first protrusion 5A, the lower surface of the plate member 10A of the locking member 10 is brought into contact with the contact portion 18 of the second protrusion 8A.
The locking projections 10C, 10C formed at the lower end of B may be engaged with the locking holes 7, 7, respectively. This also
The second protruding piece 8A and the first protruding piece 5A are firmly connected via the locking member 10. Then, the brown locking member 1 is inserted through the second protruding piece 8A of the cover member 4 made of a transparent synthetic resin.
0 can be confirmed at a glance. In addition, each 1st protrusion part 6A-6D, each 2nd protrusion piece 9A-9D, the locking member 12,
And the screw 13 is similarly attached. Thereby, the attachment of the cover member 4 to the chassis 3 is sealed.

Next, a method of releasing the sealing of the attachment of the cover member 4 to the chassis 3 will be described with reference to FIG. FIG. 4 is a plan view showing an example when the sealing of the substrate case 1 according to the first embodiment is released. As shown in FIG. 4, the beam portion 20 that connects the second projecting piece 8A and the second projecting piece 8B is notched, and a connecting portion between the second projecting piece 8A and the cover member 4 is formed. The first protruding piece 5A and the second protruding piece 8A are removed from the board case 1 by cutting out the connecting portion between the one protruding piece 5A and the chassis 3. Subsequently, the beam portion 20 for connecting the second projecting piece 9A and the second projecting piece 9B is cut out, and a connecting portion between the second projecting piece 9A and the cover member 4, and the first projecting piece. The first protruding piece 6A and the second protruding piece 9A are cut out by cutting out a connecting portion between the 6A and the chassis 3.
Is removed from the board case 1. Thereby, the sealing of the attachment of the cover member 4 to the chassis 3 can be released. After that, the cover member 4 is attached to the chassis 3, and the first projecting pieces 5B, 6
B and the second protruding pieces 8B, 9B are fitted with the separately supplied locking members 10, 12, and the screws 11, 13 are screwed in, thereby sealing the cover member 4 to the chassis 3 again. It can be carried out. That is, in the board case 1 according to the first embodiment, the sealing of the attachment of the cover member 4 to the chassis 3 can be performed four times.

As described in detail above, in the board case 1 of the pachinko machine according to the first embodiment, the locking portion 23 of the cover member 4 is engaged with the locking opening 24 of the chassis 3 so that the cover member 4 is Attach to 3. Each second projection 8 fitted over the first projection 5A, 6A.
A, 9A of the second mounting hole 19 and each of the first projecting pieces 5A, 6A
Each of the locking members 10 and 12 is inserted into the first mounting hole 15 of
The locking projections of the locking members 10 and 12 are connected to the first protrusion 5.
A and 6A are engaged with the locking holes 7 so that the first protruding pieces 5A
6A and the second projecting pieces 8A, 9A are connected. Then, the screws 11 and 13 are inserted into the through holes of the locking members 10 and 12 and screwed into the first protruding pieces 5A and 6A, and the cover member 4 is formed.
To the chassis 3 is sealed. This sealing is released by cutting out the first projecting pieces 5A, 6A and the second projecting pieces 8A, 9A from the cover member 4 and the chassis 3.

Therefore, after sealing, each locking hole 7 is
Since the outer sides are covered with the protruding pieces 8A to 8D and 9A to 9D, and the lower ends of the first protruding pieces 5A to 5D and 6A to 6D are closed, the locking members 10 and 12 Free contact with each locking projection can be prevented, and it is possible to effectively prevent unauthorized removal of the sealing. Further, each locking member 10, 12 is connected to the first mounting hole 15.
Further, since the sealing can be performed by being inserted into the inside of the second mounting hole 19, the sealing can be easily performed, and the workability can be improved. Further, since the manufacture of each locking hole 7 is easy, it is possible to reduce the manufacturing cost. Further, since the locking members 10 and 12 are screwed by the screws 11 and 13, the locking members 10 and 12 can be more firmly fixed. This can be more effectively prevented. In addition, the first member into which the locking members 10 and 12 are inserted is shown.
By notching the protruding pieces 5A, 6A and the second protruding pieces 8A, 9A from the chassis 3 and the cover member 4, the sealing is released and the cover member 4 can be removed from the chassis 3. . Further, in each of the first protruding pieces 5B to 5D, 6B to 6D and the second protruding pieces 8B to 8D, 9B to 9D which have not been cut off, a locking member is inserted into the inside thereof. , Cover member 4 of chassis 3
It is possible to seal the attachment to the device again. In addition, since each of the locking members 10 and 12 can be seen through the transparent synthetic resin cover member 4, it is possible to easily and effectively check the sealing by the locking members 10 and 12. Become. Further, since the locking members 10 and 12 are colored brown, it is possible to more easily and more effectively check the sealing by the locking members 10 and 12. Further, since the main substrate 2 is mounted in the substrate case 1, it is possible to more effectively repeatedly perform inspection and the like on the main substrate 2 during sealing.

Next, a board case of a pachinko machine according to a second embodiment will be described with reference to FIGS. First, the overall configuration of the board case of the pachinko machine according to the second embodiment will be described with reference to FIG. FIG. 5 is an exploded perspective view showing a board case of the pachinko machine according to the second embodiment. As shown in FIG. 5, the board case 31 according to the second embodiment has substantially the same configuration as the board case 1 according to the first embodiment. However, a chassis 32 to which the main board 2 is fixed, and a transparent cover member 33 made of a synthetic resin such as a polycarbonate resin that covers the main board 2
It is composed of

The upper and lower edges of the chassis 32 (FIG. 5)
Middle, left and right edges), four first projecting pieces 35A, 3
5B, 35C, 35D, and 36A, 36B, 36C,
36D are provided so as to protrude at symmetrical positions. The first protruding pieces 35A to 35D, 36A to 36D
Lock holes 37 (see FIG. 6), which will be described later, are formed at two positions symmetrical with respect to the center axis of the side surface of the. In addition, each of the first protrusions 3 at the upper and lower edges of the open side of the cover member 33.
The position facing 5A-35D and 36A-36D is 4
The second protruding pieces 38A, 38B, 38C, 38D and 39A, 39B, 39C, 39D are provided so as to be protruded respectively.

Each of the second projecting pieces 38A, 39A has
Each locking member 40, 41 made of a brown synthetic resin as described later.
(See FIG. 6) is inserted from above, and the attachment of the cover member 33 to the chassis 32 is sealed (see FIG. 7).

Next, the first projecting pieces 35A to 35D, 36
A to 36D, second protruding pieces 38A to 38D, 39A to 3
9D and the configuration of each locking member 40, 41 will be described with reference to FIG. In addition, each of the first protrusions 35A to 35D,
Each of the second protrusions 38A to 38D and the locking member 40, each of the first protrusions 36A to 36D, and each of the second protrusions 39A to 39
Since D and the locking member 41 have almost the same configuration,
Each first protruding piece 35A to 35D, each second protruding piece 38A to 3
8D and the configuration of the locking member 40 will be described. FIG.
Are the first projecting pieces 3 of the board case 31 according to the second embodiment.
It is a sectional side view which shows 5A-35D, each 2nd projecting piece part 38A-38D, and the locking member 40.

First, each first projecting from the chassis 32
As shown in FIG. 6, the projecting pieces 35A to 35D have substantially the same shape, are substantially cylindrical, have a lower edge closed, and have a first mounting hole 45 formed therein. The locking holes 37, 37 are formed in the side surface at positions symmetrical with respect to the central axis. At substantially the center of the bottom surface, a mounting boss 46 is provided so as to protrude to a height substantially equal to the upper end surface of a contact portion 48 described later. A hole having a predetermined depth is formed in the upper end surface of the mounting boss 46.

Further, as shown in FIG.
Protruding portions 38A protruding from the side edges on the open side of the
38D have substantially the same shape, are formed in a substantially cylindrical shape whose inner diameter is slightly larger than the outer diameter of each of the first protruding pieces 35A to 35D, and the second mounting hole 47 is formed. When the cover member 33 is attached to the chassis 32 at a predetermined height from the lower end surface inside each of the second protrusions 38A to 38D, the upper end surface of each of the first protrusions 35A to 35D. The contact portion 48 is provided to protrude inward in a rib shape. The height from the lower surface of each abutting portion 48 to the lower surface of each of the second protruding pieces 38A to 38D is equal to the height from the upper end surface of each of the first protruding pieces 35A to 35D to each of the locking holes 37. It is formed larger than the height dimension. Further, the adjacent second projecting pieces 38A to 38D are connected to each other by a beam 50 being erected. As a result, the hook-shaped locking portion 23 provided on the open side edge (the left side edge in FIG. 6) of the cover member 33 is engaged with the locking opening 24 of the chassis 32 (FIG. 4).
), The second protrusions 38A to 38D cover the outer sides of the locking holes 37 of the first protrusions 35A to 35D. Parts 35A-35
It is fitted on the upper side of D.

Further, as shown in FIG.
A, the brown locking member 40 inserted into the
A disk-shaped plate member 40A having an outer diameter smaller than the inner diameter of A and larger than the inner diameter of the contact portion 48, and two elastic locking pieces 4 suspended from the lower surface of the plate 40A.
0B and 40B are provided.
Locking projections 40C, 40C are formed at lower ends of 0B, 40B. Each of the locking projections 40C, 40C is provided with a respective one of the locking holes 37, 3
7, thereby the connection between the locking member 40 and the first projecting piece 35A is performed inside the second projecting piece 38A (see FIG. 7).

Next, mounting of the first protruding pieces 35A to 35D, the second protruding pieces 38A to 38D, and the locking member 40 configured as described above will be described with reference to FIG. FIG. 7 shows each first case of the board case 31 according to the second embodiment.
Protruding pieces 35A to 35D, second protruding pieces 38A to 38D,
FIG. 4 is a side sectional view showing a mounting state of a locking member 40. As shown in FIG. 7, first, the locking portion 23 of the cover member 33 is engaged with the locking port 24 (see FIG. 4) of the chassis 32, and the cover member 33 is attached to the chassis 32. Then, the lower surface of the plate member 40A of the locking member 40 has the contact portion 48 of the second protruding piece 38A and the mounting boss 4 of the first protruding piece 35A.
Until it comes into contact with the upper end surface of the first projection piece 6, the elastic locking piece 40B is moved through the second mounting hole 47 of the second projection piece 38A to the first projection 35A.
Is inserted into the first mounting hole 45, and the locking projections 40C, 40C formed at the lower end of the elastic locking piece 40B are engaged with the locking holes 37, 37. Thereby, the second protruding piece portion 38
A is connected to the first projecting piece 35A via the locking member 40. The second cover member 33 made of a transparent synthetic resin is also used.
The brown locking member 40 can be confirmed at a glance through the protruding piece 38A. In addition, each of the first protrusions 36A to 36A
D, the second projecting pieces 39A to 39D, and the locking member 41 are similarly attached. Thereby, the attachment of the cover member 33 to the chassis 32 is sealed.

The method of releasing the sealing of the attachment of the cover member 33 to the chassis 32 is substantially the same as that of the first embodiment (see FIG. 4), and the second projecting piece 38A and the second
The notch of the beam portion 50 connecting the protruding portion 38B and the connecting portion of the second protruding portion 38A and the cover member 33 and the connecting portion of the first protruding portion 35A and the chassis 32 are notched. Thereby, the first projecting piece 35A and the second projecting piece 38A are removed from the board case 31. Subsequently, the second protrusion 39
A is cut out of the beam portion 50 connecting the second protruding piece portion 39B and the second protruding piece portion 39B,
Further, by cutting out the connecting portion between the second projecting portion 39A and the cover member 33 and the connecting portion between the first projecting portion 36A and the chassis 32, the first projecting portion 36A and the second projecting portion 39A are cut out. Is removed from the board case 31. This allows
The sealing of the attachment of the cover member 33 to the chassis 32 can be released. After that, the cover member 33 is attached to the chassis 32, and each of the first projecting pieces 35B, 36B and the second projecting pieces 38B, 39B which are not yet cut out are attached.
In the above, the fitting of the cover member 33 to the chassis 32 can be performed again by fitting the separately supplied locking members 40 and 41. That is, in the board case 31 according to the second embodiment, the sealing of the attachment of the cover member 33 to the chassis 32 can be performed four times.

As described above in detail, in the board case 31 of the pachinko machine according to the second embodiment, the locking portion 23 of the cover member 33 is engaged with the locking port 24 of the chassis 32,
The cover member 33 is attached to the chassis 32. And
The second mounting holes 47 of the second protruding pieces 38A, 39A fitted over the first protruding pieces 35A, 36A and the first first protruding pieces 38A, 39A, respectively.
Each locking member 4 is inserted into the first mounting hole 45 of the protruding pieces 35A, 36A.
0, 41 are fitted, and the locking projections of the locking members 40, 41 are engaged with the locking holes 37 of the first protruding pieces 35A, 36A, respectively. Each second protrusion 38
A, 39A, and the chassis 3 of the cover member 33.
Seal the attachment to 2. In addition, each first protruding piece 35
A, 36A and each of the second projecting pieces 38A, 39A are cut out from the cover member 33 and the chassis 32 to release this sealing.

Accordingly, after the sealing, the locking holes 37 are covered with the second protruding pieces 38A-38D and 39A-39D on the outside, and the first protruding pieces 35A-35D, 36A-
Since the lower end of 36D is closed, each locking member 40,
41 can be prevented from freely coming into contact with each of the locking projections, and it is possible to effectively prevent this sealing from being illegally removed. In addition, since each of the locking members 40 and 41 can be sealed by being inserted into the first mounting hole 45 and the second mounting hole 47, the sealing can be easily performed. Workability can be improved. Further, since the manufacture of each locking hole 37 is easy, it is possible to reduce the manufacturing cost. In addition, the first protrusions 35A, 36A into which the locking members 40, 41 are inserted.
By notching the second protrusions 38A and 39A from the chassis 32 and the cover member 33, the sealing is released, and the cover member 33 can be removed from the chassis 32. In each of the first protruding pieces 35B to 35D, 36B to 36D and the second protruding pieces 38B to 38D, 39B to 39D that have not been cut off, the locking members 40 and 41 are fitted inside these. This makes it possible to seal the cover member 33 to the chassis 32 again. In addition, each locking member 40, 41
Can be seen through the transparent synthetic resin cover member 33, so that the sealing by the locking members 40 and 41 can be easily confirmed.
And it can be performed reliably. Further, since the locking members 40 and 41 are colored brown, it is possible to more easily and effectively check the sealing by the locking members 40 and 41. Further, the board case 31
Since the main substrate 2 is mounted in the inside, inspection and the like for the main substrate 2 being sealed can be performed more effectively and repeatedly.

Next, a board case of a pachinko machine according to a third embodiment will be described with reference to FIGS.
First, the overall configuration of the board case of the pachinko machine according to the third embodiment will be described with reference to FIG. FIG. 8 is an exploded perspective view showing a board case of the pachinko machine according to the third embodiment. As shown in FIG. 8, the board case 61 according to the third embodiment has substantially the same configuration as the board case 1 according to the first embodiment. However, a chassis 62 to which the main board 2 is fixed, and a transparent cover member 6 formed of a synthetic resin such as a polycarbonate resin that covers the main board 2.
3 is comprised.

The upper and lower edges of the chassis 62 (FIG. 8)
In the middle, left and right edge portions), four first protruding piece portions 65,
A, 65B, 65C, 65D, and 66A, 66B, 6
6C and 66D are provided so as to protrude at symmetric positions, respectively (see FIG. 9). The first protruding pieces 65A to 65D, 66A at the upper and lower edges of the open side of the cover member 63.
4D, the second protruding piece 68
A, 68B, 68C, 68D, and 69A, 69B, 6
9C and 69D are provided so as to protrude, respectively.

Each of the second projecting pieces 68A, 69A has
Each locking member 70, 71 made of a brown synthetic resin as described later.
(See FIG. 9) is inserted from above, and the attachment of the cover member 63 to the chassis 62 is sealed (see FIG. 10).

Next, the first projecting pieces 65A to 65D, 66
A to 66D, second protruding pieces 68A to 68D, 69A to 6
9D and the configuration of each locking member 70, 71 will be described with reference to FIG. In addition, each 1st projecting piece part 65A-65D,
The configurations of 66A to 66D are substantially the same, the configurations of the second protruding pieces 68A to 68D and 69A to 69D are substantially the same, and the configurations of the locking members 70 and 71 are substantially the same. Because of the configuration, the first protruding piece 65A, the second
The configuration of the projection 68A and the locking member 70 will be described with reference to FIG. FIG. 9 is an enlarged side cross-sectional view of a main part showing the first projecting piece 65A, the second projecting piece 68A, and the locking member 70 of the board case 61 according to the third embodiment. Some are shown open.

First, as shown in FIG. 9, the first projecting piece 65A projecting from the chassis 62 is substantially cylindrical and has a lower edge closed, and a first mounting hole 74 is formed. Have been.
In the first protruding piece 65A, a recess 73 having a predetermined depth is formed on the inner peripheral surface of the first protruding piece 65A at a position slightly above the inner bottom surface. The recess 73 engages with a locking projection 70C of the locking member 70 as described later (FIG. 10).
reference).

Further, as shown in FIG.
Protruding portion 68A protruding from the side edge on the open side of
The second mounting hole 7 has a substantially cylindrical shape having an outer diameter and an inner diameter substantially equal to those of the first protruding piece 65A, the upper end of which is closed.
5 are formed. In the second protruding piece 68A, a concave portion 76 of a predetermined depth is formed on the inner peripheral surface of the second protruding piece portion 68A at a position slightly lower than the inner ceiling surface in a ring shape. This recess 76
Engages with a locking projection 70C of the locking member 70 as described later (see FIG. 10). In addition, each adjacent 2nd
The projecting pieces 68A to 68D and 69A to 69D are
0 is erected and connected.

Further, as shown in FIG.
A and the brown locking member 70 inserted into the second protruding piece 68A are disc-shaped plate members 70A having outer diameters slightly smaller than the inner diameters of the first mounting hole 74 and the second mounting hole 75. When,
Elastic locking pieces 70B, 70B, 70B, 70B suspended two by two from the peripheral edges of the upper and lower surfaces of the plate member 70A.
Are provided, and each of the elastic locking pieces 70B, 70B
B, 70B, and 70B, end portions of the locking projections 70C, 70B
C, 70C and 70C are formed. Each locking projection 70
C, 70C, 70C, and 70C are elastically engaged with the respective concave portions 73 and 76 as described later, thereby connecting the first protruding piece 65A and the second protruding piece 68A.

Next, the mounting of the first projecting piece 65A, the second projecting piece 68A, and the locking member 70 configured as described above will be described with reference to FIG. FIG. 10 illustrates a first protruding piece 65A and a second protruding piece 65A of a board case 61 according to the third embodiment.
It is a sectional side view which shows the attachment state of 68 A of projection pieces, and the locking member 70. First, the locking portion 23 of the cover member 63 is engaged with the locking port 24 of the chassis 62 (see FIG. 4),
One edge of the cover member 63 is attached to the chassis 62. Then, a gap is provided in the side edge portion on the first protruding piece portion 65A and the second protruding piece portion 68A side such that the locking member 70 can be vertically inserted. Then, each of the locking projections 70C, 70C on the lower side of the locking member 70 contacts the upper end edge of the first mounting hole 74 of the first protruding piece 65A. Subsequently, the respective locking projections 70C, 70C on the upper side of the locking member 70 abut against the lower end edge of the second mounting hole 75 of the second protruding piece 68A. Then, the first protruding piece 65
The upper end surface of A is brought into contact with the lower end surface of the second projecting piece 68A (pressed in the directions of arrows A and B in FIG. 9). Thereby, each locking projection 70C, 70C, 70 of the locking member 70
C, 70C engage with the respective recesses 73, 76, and the first protruding piece 6
5A and the second projecting piece 68A are connected via a locking member 70. In addition, the brown locking member 70 can be confirmed at a glance via the second protruding piece 68A of the cover member 63 made of a transparent synthetic resin. The first protrusion 66A, the second protrusion 69A, and the locking member 71 are similarly attached. Thereby, the attachment of the cover member 63 to the chassis 62 is sealed.

The method of releasing the sealing of the attachment of the cover member 63 to the chassis 62 is substantially the same as that of the first embodiment (see FIG. 4), and the second projecting piece 68A and the second
The notch of the beam portion 80 connecting the protruding portion 68B and the connecting portion of the second protruding portion 68A and the cover member 63 and the connecting portion of the first protruding portion 65A and the chassis 62 are notched. As a result, the first protrusion 65A and the second protrusion 68A are removed from the board case 61. Subsequently, the second protrusion 69
A notch is formed in the beam portion 80 connecting the first protrusion A and the second protrusion 69B,
Further, by cutting out the connecting portion between the second projecting portion 69A and the cover member 63 and the connecting portion between the first projecting portion 66A and the chassis 62, the first projecting portion 66A and the second projecting portion 69A are cut out. Is removed from the board case 61. This allows
The sealing of the cover member 63 attached to the chassis 62 can be released. After that, the cover member 63 is attached to the chassis 62, and each of the first projecting pieces 65B, 66B and the second projecting pieces 68B, 69B, which have not been cut, are not yet cut.
By holding the separately supplied locking members 70 and 71 inward, the chassis 62 of the cover member 63 is again
The sealing of the attachment to the device can be performed. That is, in the board case 61 according to the third embodiment, the cover member 6
The sealing of the attachment of the third device to the chassis 62 can be performed four times.

As described in detail above, in the board case 61 of the pachinko machine according to the third embodiment, the locking portion 23 of the cover member 63 is engaged with the locking port 24 of the chassis 62,
The cover member 63 is attached to the chassis 62. And
A gap is provided at the side edge of the first protruding piece 65A and the second protruding piece 68A so that the locking member 70 can be inserted vertically. Subsequently, the locking members 70, 71 are sandwiched between the first protruding pieces 65A, 66A and the second protruding pieces 68A, 69A, so that the chassis 62 of the cover member 63 is formed.
The sealing of the attachment to the device can be performed. In addition, each first
This sealing is released by cutting out the protruding pieces 65A, 66A and the second protruding pieces 68A, 69A from the cover member 63 and the chassis 62.

Accordingly, each of the locking members 70 and 71 has a first protruding piece 65A, 66A and a second protruding piece 68A, 69A.
The locking members 70, 71
Can be prevented from freely coming into contact with each of the locking projections, and it is possible to effectively prevent the seal from being illegally removed. Further, since the locking members 70 and 71 can be sealed by sandwiching the locking members 70 and 71 inside the first mounting hole 74 and the second mounting hole 75, the sealing can be easily performed and workability can be improved. Can be improved. Further, since the manufacturing of the concave portions 73 and 76 is easy, it is possible to reduce the manufacturing cost. Also, the first protruding pieces 65A, 66A into which the locking members 70, 71 are inserted.
By notching the second protrusions 68A and 69A from the chassis 62 and the cover member 63, the sealing is released, and the cover member 63 can be removed from the chassis 62. In addition, in each of the first protruding pieces 65B to 65D and 66B to 66D and the second protruding pieces 68B to 68D and 69B to 69D that have not been cut off, the locking members 70 and 71 are sandwiched between them. Thereby, the attachment of the cover member 63 to the chassis 62 can be sealed again. Further, each locking member 70, 71
Can be seen through the transparent synthetic resin cover member 63, so that the sealing by the locking members 70 and 71 can be easily confirmed.
And it can be performed effectively. Further, since the locking members 70 and 71 are colored brown, it is possible to more easily and effectively check the sealing by the locking members 70 and 71. Furthermore, the board case 6
Since the main substrate 2 is mounted in the device 1, it is possible to more effectively repeat the inspection and the like for the main substrate 2 being sealed.

It should be noted that the present invention is not limited to the above-described first to third embodiments, and it is needless to say that various improvements and modifications can be made without departing from the gist of the present invention.
The following may be performed. (A) In the first to third embodiments, each locking member 1
0, 12, 40, 41, 70, 71 were separately supplied,
It may be detachably mounted in each of the board cases 1, 31, 61 and the like. (B) In the first to third embodiments, each locking member 1
Although 0, 12, 40, 41, 70, and 71 are colored brown, any color may be used, and a fluorescent color or the like may be used.

[0062]

As described above, the present invention prevents the sealing portion for the circuit board from freely contacting after sealing,
A board case of a pachinko machine that can effectively prevent the sealing from being unfairly removed, and can easily perform the sealing to improve workability. Can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a board case of a pachinko machine according to a first embodiment.

FIG. 2 is a side sectional view showing each first projecting piece, each second projecting piece, a locking member, and a screw of the board case according to the first embodiment.

FIG. 3 is a side cross-sectional view showing a mounting state of each first protrusion, each second protrusion, a locking member, and a screw of the board case according to the first embodiment.

FIG. 4 is a plan view showing an example when the sealing of the substrate case according to the first embodiment is released.

FIG. 5 is an exploded perspective view showing a board case of the pachinko machine according to the second embodiment.

FIG. 6 is a side sectional view showing each first protrusion, each second protrusion, and a locking member of a board case according to a second embodiment.

FIG. 7 is a side cross-sectional view showing a mounting state of each first projecting piece, each second projecting piece, and a locking member of a board case according to a second embodiment.

FIG. 8 is an exploded perspective view showing a board case of a pachinko machine according to a third embodiment.

FIG. 9 shows a first protrusion of a board case according to a third embodiment;
It is the side sectional view to which the principal part which shows a 2nd projecting piece part and a locking member was expanded, and it showed up and down at intervals.

FIG. 10 is a side cross-sectional view showing an attached state of a first protrusion, a second protrusion, and a locking member of a board case according to a third embodiment.

FIG. 11 is an exploded perspective view showing a sealing structure of a circuit board of a pachinko machine according to a conventional example.

12 is a view of the pachinko machine according to the conventional example as viewed from an arrow P in FIG. 11, in which a first protruding piece, a second protruding piece, and a part of a screw are shown in cross-section. is there.

FIG. 13 is a cross-sectional view showing an example when a main board of a conventional pachinko machine is sealed with a chassis and a cover.

FIG. 14 is a plan view showing an example when the sealing of the circuit board of the conventional pachinko machine is released.

[Explanation of symbols]

1, 31, 61 board case 2 main board 3, 32, 62 chassis 4, 33, 63 cover member 5A-5D, 6A-6D, 35A-35D, 36A-3
6D, 65A-65D, 66A-66D
First protruding piece portions 8A to 8D, 9A to 9D, 38A to 38D, 39A to 3
9D, 68A-68D, 69A-69D
Second protrusion 7, 37 Lock hole 10, 11, 40, 41, 70, 71 Lock member 10A, 40A, 70A Plate member 10B, 40B, 70B Elastic lock piece 10C, 40C, 70C Lock protrusion 11 , 13 Screw 15, 45, 74 First mounting hole 18, 48 Contact portion 19, 47, 75 Second mounting hole 20, 50, 80 Beam 73, 76 Recess

Claims (8)

[Claims] A circuit board for controlling an operation state of the pachinko machine; a chassis on which the circuit board is fixed; a box having substantially the same size as the chassis and attached so as to cover the circuit board; And a sealing member for sealing the attachment of the cover member to the chassis, wherein the sealing member has a locking projection formed at least at one end. A first member having a predetermined depth formed at a predetermined position of the chassis and having at least one predetermined depth into which the locking member is inserted from one end side;
An attachment hole, a second attachment hole formed at a position opposite to the first attachment hole of the cover member and having a predetermined depth into which the locking member is inserted from one end side; and the first attachment hole or the second attachment hole. A recess formed at a position inside the mounting hole facing the locking projection, wherein the other end of the first mounting hole or the second mounting hole in which the recess is formed is closed; A locking member is inserted into the first mounting hole and the second mounting hole from one end side and the locking projection is locked in the concave portion, so that the mounting of the cover member to the chassis is sealed. A board case for a pachinko machine, which is stopped. 2. The locking member according to claim 1, wherein the locking member is vertically attached to an upper surface and a lower surface of the plate member to be inserted into the first mounting hole or the second mounting hole, and the locking protrusion has an end portion. A plurality of elastic locking pieces are formed, and the elastic locking pieces on one side are inserted into the first mounting holes, and the elastic locking pieces on the other side are inserted into the second mounting holes. The board case for a pachinko machine according to claim 1, wherein: 3. The first mounting hole or the second mounting hole has an abutting portion formed at one end edge and abutting on the locking member, wherein the locking member is provided on the abutting portion. A plate member that abuts, and a plurality of elastic locking pieces that are vertically provided on a surface of the plate member that abuts a corresponding contact portion and have the locking protrusion formed at an end. The board case of a pachinko machine according to claim 1, wherein the stop member is inserted into the first mounting hole and the second mounting hole such that the plate member comes into contact with the contact portion. 4. The recess formed in the first mounting hole or the second mounting hole is formed by a locking hole, and the other of the first mounting hole or the second mounting hole in which the locking hole is not provided. The board case of a pachinko machine according to claim 3, wherein the end side covers the outside of the locking hole. 5. The plate member according to claim 3, wherein the plate member has a through hole at a substantially central portion into which a screw is inserted, and is screwed through the through hole. Circuit board case for pachinko machine. 6. A plurality of first protruding pieces protruding from the chassis, and a plurality of second protruding pieces protruding at positions facing each of the first protruding pieces of the cover member. The first mounting hole is formed in each of the first protruding pieces,
The second mounting hole is formed in each of the second projecting pieces, and the first mounting hole and the second mounting hole in which the locking member is inserted.
By notching the first and second projecting pieces having the mounting holes from the chassis and the cover member,
The substrate case of a pachinko machine according to any one of claims 1 to 5, wherein the sealing by the sealing means is released. 7. The board case for a pachinko machine according to claim 1, wherein the locking member is visible through the chassis or the cover member. 8. The board case for a pachinko machine according to claim 1, wherein said circuit board is a main board.