JP5110644B2 - Control device for gaming machine - Google Patents

Control device for gaming machine Download PDF

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JP5110644B2
JP5110644B2 JP2007340066A JP2007340066A JP5110644B2 JP 5110644 B2 JP5110644 B2 JP 5110644B2 JP 2007340066 A JP2007340066 A JP 2007340066A JP 2007340066 A JP2007340066 A JP 2007340066A JP 5110644 B2 JP5110644 B2 JP 5110644B2
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screw
outer cylinder
head member
shaft portion
screwing
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JP2009160066A (en
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和正 長谷川
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Toyomaru Industry Co Ltd
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Description

本発明は、パチンコ機、スロットマシーン等の遊技機に用いる遊技機用制御装置に関するものである。   The present invention relates to a control device for gaming machines used in gaming machines such as pachinko machines and slot machines.

遊技機の一種であるパチンコ機には、制御装置が設けられており、内部の基板上にROMやCPU等の制御素子が設置されている。かかる制御素子は、パチンコ機の作動内容を制御するものであるため、パチンコ機が遊技者にとって都合良く作動するように、不正に取り替えられたり不正に改造されたりすることがある。このため、かかる不正を防止するために、従来の遊技機用制御装置の中には、切断可能な複数のネジ保持部を左右両端縁に設けた上カバーと、その上カバーと合致する下カバーとによって、制御素子を設置した基板を覆うとともに、左右のネジ保持部の内の一つずつを、かしめネジ(基端部の外面に対して垂直な面と基端部の外面に対して緩やかに傾斜した面とを有するネジ突起を基端部に設けたもの)を用いて、ドライバ等では外れないように下カバーに螺着することにより、ネジ保持部を切断しなければ上カバーを取り外すことができないようにして、上カバーの取り外しの痕跡が残るように構成したものがある。   A pachinko machine, which is a type of gaming machine, is provided with a control device, and control elements such as a ROM and a CPU are installed on an internal substrate. Since such a control element controls the operation content of the pachinko machine, the pachinko machine may be illegally replaced or modified so that the pachinko machine operates conveniently for the player. For this reason, in order to prevent such injustice, the conventional control device for gaming machines includes an upper cover having a plurality of severable screw holding portions at both left and right edges, and a lower cover that matches the upper cover. To cover the substrate on which the control element is installed and to fix each of the left and right screw holding portions with a caulking screw (a surface perpendicular to the outer surface of the proximal end portion and an outer surface of the proximal end portion). And a screw projection having a slanted surface on the base end) and screwed to the lower cover so as not to be removed by a screwdriver or the like, so that the upper cover is removed unless the screw holding portion is cut. In some cases, it is configured so that the trace of removal of the upper cover remains.

特開平11−000444号公報JP-A-11-000444

しかしながら、上記した切断可能なネジ保持部を設けた遊技機用制御装置は、かしめネジのヘッドに電気ドリル等で孔をあけられると、それらの孔を利用してネジを回転させることが可能となってしまうため、ネジ保持部を切断することなく上カバーを取り外すことができてしまう。このため、近年では、制御素子の不正取り替え、不正改造を効果的に防止することができなくなっていた。   However, the control device for a gaming machine provided with the above-described severable screw holding portion can rotate the screw using the holes when the holes of the caulking screw are drilled with an electric drill or the like. Therefore, the upper cover can be removed without cutting the screw holding portion. For this reason, in recent years, it has been impossible to effectively prevent unauthorized replacement and unauthorized modification of control elements.

本発明の目的は、上記従来の遊技機用制御装置の問題点を解消し、制御素子の不正取り替え、不正改造を効果的に防止することが可能な遊技機用制御装置を提供することにある。   An object of the present invention is to provide a gaming machine control device that can solve the problems of the above conventional gaming machine control device, and that can effectively prevent unauthorized replacement and unauthorized modification of control elements. .

本発明の内、請求項1に記載された発明は、上カバー、およびその上カバーと合致する下カバーによって、制御素子を設置した基板が覆われた遊技機用制御装置であって、前記上カバーの端縁に切断可能な複数のネジ保持部が設けられており、それらのネジ保持部の内の少なくとも1つが、ワンウェイタイプのネジによって前記下カバーに螺着されているとともに、前記ネジが、前記ワンウェイタイプのネジ頭を有するヘッド部材と、前記ヘッド部材を螺着可能な軸部とからなり、さらに、前記軸部が、半円柱状に形成され、その基端側に前記ヘッド部材を螺着するためのネジ溝を有する一方、先端側に嵌合凹部を備えた一対の外筒部材と、先端側の周面に前記下カバーへ螺着するためのネジ溝が周設されている一方、基端部に径方向へ突出する位置決め突起を有する円柱状に形成されており、前記基端部を前記嵌合凹部内へ位置させ、前記位置決め突起を前記外筒部材の何れか一方に形成された固定孔へ差し込んだ状態で前記一対の外筒部材を組み付けることにより前記一対の外筒部材の先端側に固着される軸芯部材とからなり、前記ヘッド部材前記軸部に対する螺着方向が、前記軸部の前記下カバーに対する螺着方向と同一に設定されていることを特徴とするものである。なお、なお、本発明でいうワンウェイタイプのネジとは、ヘッド部材を片方向に回転させた場合には軸部も一体となって回転するが、ヘッド部材を逆方向に回転させた場合(電気ドリル等を用いて無理矢理に回転させた場合も含む)には軸部(ネジ溝あるいはネジ山周設部分)が回転しないネジのことである。 Among the present inventions, the invention described in claim 1 is a gaming machine control device in which a board on which a control element is installed is covered by an upper cover and a lower cover that matches the upper cover. A plurality of severable screw holding portions are provided at an edge of the cover, and at least one of the screw holding portions is screwed to the lower cover by a one-way type screw, and the screws are A head member having the one-way type screw head and a shaft portion to which the head member can be screwed, and the shaft portion is formed in a semi-cylindrical shape, and the head member is disposed on the base end side thereof. While having a screw groove for screwing, a pair of outer cylinder members having a fitting recess on the tip side, and a screw groove for screwing to the lower cover on the peripheral surface of the tip side are provided. On the other hand, it protrudes radially at the base end In a state where the base end portion is positioned in the fitting recess, and the positioning projection is inserted into a fixing hole formed in one of the outer cylinder members. consists of a shaft member which is fixed to the distal end side of the pair of the outer tubular member by assembling the pair of the outer cylindrical member, screwing direction relative to the shaft portion of the head member, the lower cover of the shaft portion It is characterized by being set to be the same as the screwing direction with respect to. It should be noted that the one-way type screw referred to in the present invention means that when the head member is rotated in one direction, the shaft portion also rotates integrally, but when the head member is rotated in the opposite direction (electrical (Including the case where it is forcibly rotated using a drill or the like) is a screw whose shaft portion (thread groove or thread peripheral portion) does not rotate.

請求項2に記載された発明は、請求項1に記載された発明において、前記ヘッド部材のネジ山が設けられた先端部よりも基端側に、前記先端部よりも小径な軸部を設ける一方、前記外筒部材の基端側に、前記ヘッド部材の先端部を収納可能な螺合凹部を、前記ネジ溝を覆うように設けるとともに、前記螺合凹部の基端縁に、内側へ突出するフランジ部を設け、前記フランジ部の内径を前記ヘッド部材の先端部よりも小径としており、前記ヘッド部材と前記軸部との螺着を解除した場合でも、前記ヘッド部材前記軸部から外れないようになっていることを特徴とするものである。 According to a second aspect of the present invention, in the first aspect of the present invention, a shaft portion having a smaller diameter than the distal end portion is provided on the proximal end side of the distal end portion where the thread of the head member is provided. On the other hand, on the base end side of the outer cylinder member, a screwing recess that can accommodate the tip of the head member is provided so as to cover the screw groove, and protrudes inward to the base end edge of the screwing recess. the flange portion is provided, the inner diameter of the flange portion than the tip portion of the head member has a small diameter, even when releasing the screwing of the head member and the shaft portion, wherein the head member is disengaged from the shaft portion It is characterized by not being.

請求項1に記載された制御装置は、上カバーと下カバーとを螺着するためのワンウェイタイプのネジのヘッド部材が、軸部に対して螺着可能になっているとともに、そのヘッド部材の軸部に対する螺着方向が、軸部の先端の下カバーに対する螺着方向と同一に設定されているため、電気ドリル等を利用して無理矢理にネジを回転させても、ヘッド部材の軸部に対する螺合状態が解除されるだけで、ネジ自体の下カバーに対する螺合状態(すなわち、ネジの軸部の先端の下カバーに対する螺合状態)が保持されるので、取付片を切断することなく上カバーが不正に取り外される事態を効果的に防止することができる。したがって、請求項1に記載された発明の制御装置によれば、制御素子の不正取り替え、不正改造を効果的に防止することができる。 The control apparatus as claimed in claim 1, the head member of the one-way type screws for screwing the upper cover and the lower cover, with are enabled screwing with respect to the axis portion, the head member screwing direction relative to the shaft portion, because it is set to be the same as the screwing direction relative to the lower cover of the distal end of the shaft portion, it is rotated screw to forcibly by using the electric drill or the like, with respect to the shaft portion of the head member Only by releasing the screwed state, the screwed state with respect to the lower cover of the screw itself (that is, the screwed state with respect to the lower cover at the tip of the screw shaft portion) is maintained, so that the mounting piece is not cut off. It is possible to effectively prevent the cover from being illegally removed. Therefore, according to the control device of the first aspect of the present invention, it is possible to effectively prevent unauthorized replacement and unauthorized modification of the control element.

請求項2に記載された発明の制御装置は、ヘッド部材のネジ山が設けられた先端部よりも基端側に、先端部よりも小径な軸部を設ける一方、外筒部材の基端側に、ヘッド部材の先端部を収納可能な螺合凹部を、ネジ溝を覆うように設けるとともに、螺合凹部の基端縁に、内側へ突出するフランジ部を設け、フランジ部の内径をヘッド部材の先端部よりも小径としており、ヘッド部材と軸部との螺着を解除した場合でも、ヘッド部材が軸部から外れないようになっているため、ネジのヘッド部材が接着剤等によって軸部に接着された上で電気ドリル等によって無理矢理に回転させられる、という事態が起こりにくいので、取付片を切断することなく上カバーが不正に取り外される事態をより効果的に防止することができ、制御素子の不正取り替え、不正改造を一層効果的に防止することができる。 In the control device according to the second aspect of the present invention, the shaft portion having a smaller diameter than the distal end portion is provided on the proximal end side with respect to the distal end portion provided with the thread of the head member, while the proximal end side of the outer cylinder member In addition, a screwing recess that can accommodate the tip of the head member is provided so as to cover the screw groove, and a flange portion that protrudes inward is provided at the base end edge of the screwing recess, and the inner diameter of the flange portion is set to Since the head member is prevented from being detached from the shaft portion even when the screwing between the head member and the shaft portion is released, the screw head member is attached to the shaft portion by an adhesive or the like. Since it is hard to happen to be forced to rotate with an electric drill etc. after being glued on, the situation where the upper cover is illegally removed without cutting the mounting piece can be more effectively prevented and controlled. Unauthorized replacement of elements , It is possible to prevent tampering more effectively.

以下、本発明の遊技機用制御装置(以下、単に制御装置という)について、図面に基づいて詳細に説明する。図1は、制御装置1の正面図であり、図2は、図1におけるA−A線断面を示す説明図である(なお、図2(b)は、図2(a)の一部を拡大して示したものである)。制御装置1は、ROM8やCPU等の種々の制御素子を搭載した基板4a,4b、透明な合成樹脂製の上カバー6および下カバー5等によって構成されている。   Hereinafter, a gaming machine control device (hereinafter simply referred to as a control device) of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of the control device 1, and FIG. 2 is an explanatory view showing a cross section taken along line AA in FIG. 1 (note that FIG. 2 (b) is a part of FIG. 2 (a). (Enlarged) The control device 1 includes substrates 4a and 4b on which various control elements such as a ROM 8 and a CPU are mounted, a transparent synthetic resin upper cover 6, a lower cover 5, and the like.

上カバー6は、幅広な箱形に形成されており、左右両サイドに上固着翼26,26が設けられている。各上固着翼26,26の上端縁には、それぞれ、係止孔12が穿設されている。さらに、各係止孔12,12の下方には、それぞれ、略円筒状の4個のネジ保持部9,9・・が、左右に位置した切断可能な取付片10,10によって、各上固着翼26,26の前面に一体的に連設されており、後方に突出した状態になっている。   The upper cover 6 is formed in a wide box shape, and upper fixing wings 26 are provided on both the left and right sides. A locking hole 12 is formed in the upper edge of each upper fixing wing 26, 26. Further, below the locking holes 12, 12, four substantially cylindrical screw holding portions 9, 9,... Are fixed to the upper and lower sides by detachable mounting pieces 10, 10, respectively, located on the left and right. The wings 26 and 26 are integrally connected to the front surface of the wings 26 and protrude rearward.

また、図2の如く、各ネジ保持部9の略中央には、仕切板35が形成されており、仕切板35の中央には、ネジ挿通孔36が穿設されている。さらに、仕切板35の裏側には、2つの弾性片28,28が後方に突出するように設けられている。そして、各ネジ保持部9,9・・においては、金属によって形成されたワンウェイタイプのネジ13が、ネジ挿通孔36に挿通され、弾性片28,28によって先端を把持された状態で保持されている。   Further, as shown in FIG. 2, a partition plate 35 is formed in the approximate center of each screw holding portion 9, and a screw insertion hole 36 is formed in the center of the partition plate 35. Further, on the back side of the partition plate 35, two elastic pieces 28 are provided so as to protrude rearward. In each screw holding portion 9, 9,..., A one-way type screw 13 formed of metal is inserted into the screw insertion hole 36 and held in a state where the tip is gripped by the elastic pieces 28, 28. Yes.

図3、図4は、ワンウェイタイプのネジ13の正面図、および分解図であり、ワンウェイタイプのネジ13は、基端部であるヘッド部材15、軸部の一部(基端側)を構成する半円柱状で2個一対の外筒部材16a,16bおよび軸芯部材17によって構成されている。   3 and 4 are a front view and an exploded view of the one-way type screw 13, and the one-way type screw 13 constitutes a head member 15 that is a base end portion and a part of the shaft portion (base end side). The semi-cylindrical shape is constituted by two pairs of outer cylinder members 16 a and 16 b and a shaft core member 17.

ヘッド部材15は、ネジ突起21を設けた頭部19に、ネジ山を周設した軸体20を突設したものである。軸体20の基端側には、先端側に比べて径の小さな小径部22が設けられている。また、頭部19のネジ突起21は、頭部19の外面に対して垂直な面と、頭部19の外面に対して緩やかに傾斜した面とを有している。   The head member 15 is formed by projecting a shaft body 20 having a thread around a head 19 provided with a screw projection 21. A small-diameter portion 22 having a smaller diameter than the distal end side is provided on the proximal end side of the shaft body 20. Further, the screw protrusion 21 of the head 19 has a surface perpendicular to the outer surface of the head 19 and a surface gently inclined with respect to the outer surface of the head 19.

一方、外筒部材16a、外筒部材16bは、いずれも半円柱状に形成されている。外筒部材16aの内面の基端側には、ヘッド部材15の軸体20の先端を嵌め込んで螺合させるための螺合凹部23が設けられている。当該螺合凹部23の先端側は基端側に比べて小径になっており、ヘッド部材15の軸体20のネジ山と螺合するネジ溝が周設されている。また、螺合凹部23の基端縁には、半ドーナッツ状のフランジ部24が設けられており、他の部分の内周面よりも内側へ突出するとともに、他の部分の外周面よりも外側へ突出した状態になっている。なお、当該フランジ部24の内径は、ヘッド部材15の軸体20の小径部22よりも大きく小径部22以外の部分よりも小さくなるように設計されている。また、当該フランジ部24の外径は、ヘッド部材15の頭部19の外径よりも小さくなるように設計されている。さらに、螺合凹部23の左右の外側には、位置決めピン25,25・・が突設されている。加えて、螺合凹部23の下側には、軸芯部材17の基端側を嵌合させるための嵌合凹部28が設けられている。当該嵌合凹部28の先端側は、基端側よりも小径になっている。   On the other hand, both the outer cylinder member 16a and the outer cylinder member 16b are formed in a semi-cylindrical shape. On the proximal end side of the inner surface of the outer cylinder member 16a, a screw recess 23 for fitting and screwing the tip of the shaft body 20 of the head member 15 is provided. The distal end side of the threaded recess 23 has a smaller diameter than the proximal end side, and a thread groove that is threadedly engaged with the thread of the shaft body 20 of the head member 15 is provided. In addition, a half-doughnut-shaped flange portion 24 is provided at the base end edge of the screw recess 23, and protrudes inward from the inner peripheral surface of the other portion, and is outside the outer peripheral surface of the other portion. It is in a state protruding to. The inner diameter of the flange portion 24 is designed to be larger than the small diameter portion 22 of the shaft body 20 of the head member 15 and smaller than the portion other than the small diameter portion 22. Further, the outer diameter of the flange portion 24 is designed to be smaller than the outer diameter of the head portion 19 of the head member 15. Further, positioning pins 25, 25... Project from the left and right outer sides of the screwing recess 23. In addition, a fitting recess 28 for fitting the base end side of the shaft core member 17 is provided below the screwing recess 23. The distal end side of the fitting recess 28 has a smaller diameter than the proximal end side.

また、外筒部材16bは、外筒部材16aと略同様の形状を有しており、外筒部材16aと同様な螺合凹部23および嵌合凹部28が設けられている。しかしながら、外筒部材16bの螺合凹部23の外側には、位置決めピン25は突設されておらず、当該位置決めピン25を嵌め込むための位置決め孔30,30・・が穿設されている。また、外筒部材16bの嵌合凹部28の略中央には、軸固定孔31が穿設されている。   The outer cylinder member 16b has substantially the same shape as the outer cylinder member 16a, and is provided with a screwing recess 23 and a fitting recess 28 similar to those of the outer cylinder member 16a. However, the positioning pin 25 is not provided on the outside of the threaded recess 23 of the outer cylinder member 16b, and positioning holes 30, 30... For fitting the positioning pin 25 are provided. In addition, a shaft fixing hole 31 is formed in the approximate center of the fitting recess 28 of the outer cylinder member 16b.

さらに、軸芯部材17は、略円柱状に形成されている。そして、基端側にフランジ38が設けられており、先端側にネジ溝が周設されている。また、フランジ38の外周には、外筒部材16bの嵌合凹部28に設けられた軸固定孔31と合致する形状の位置決めピン39が突設されている。   Furthermore, the shaft core member 17 is formed in a substantially cylindrical shape. A flange 38 is provided on the proximal end side, and a thread groove is provided on the distal end side. In addition, a positioning pin 39 having a shape matching the shaft fixing hole 31 provided in the fitting recess 28 of the outer cylinder member 16b is provided on the outer periphery of the flange 38.

ネジ13は、外筒部材16aの位置決めピン25,25・・を外筒部材16bの位置決め孔30,30・・に嵌め込み、外筒部材16aの嵌合凹部28および外筒部材16bの嵌合凹部28に軸芯部材17のフランジ38を嵌め込み、外筒部材16aの螺合凹部23および外筒部材16bの螺合凹部23によって形成される空洞内に、ヘッド部材15の軸体20を嵌め込むようにして、外筒部材16aおよび外筒部材16bを合着させる(接着剤による接着等の方法により合着させる)ことによって一体的に組み付けられている。なお、軸芯部材17のフランジ38は、位置決めピン39を外筒部材16bの嵌合凹部28の軸固定孔31に嵌め込んだ状態で、外筒部材16aの嵌合凹部28および外筒部材16bの嵌合凹部28に嵌合されている。したがって、軸芯部材17が外筒部材16aおよび外筒部材16bに対して相対的に回転したりしない。   The screw 13 fits the positioning pins 25, 25, ... of the outer cylinder member 16a into the positioning holes 30, 30, ... of the outer cylinder member 16b, and the fitting recess 28 of the outer cylinder member 16a and the fitting recess of the outer cylinder member 16b. 28, the flange 38 of the shaft core member 17 is fitted, and the shaft body 20 of the head member 15 is fitted into the cavity formed by the screwing recess 23 of the outer cylinder member 16a and the screwing recess 23 of the outer cylinder member 16b. The outer cylinder member 16a and the outer cylinder member 16b are assembled together by being bonded together (by bonding using an adhesive or the like). The flange 38 of the shaft core member 17 has the fitting recess 28 of the outer cylinder member 16a and the outer cylinder member 16b in a state where the positioning pin 39 is fitted in the shaft fixing hole 31 of the fitting recess 28 of the outer cylinder member 16b. Is fitted in the fitting recess 28. Therefore, the shaft core member 17 does not rotate relative to the outer cylinder member 16a and the outer cylinder member 16b.

上記の如く構成されたネジ13は、ヘッド部材15のネジ突起21の垂直面にマイナスのドライバを押し当てて右向きに回転させると、ドライバとネジ突起21の垂直面とが係合するためヘッド部材15が右向きに回転する。そして、ヘッド部材15の軸体20のネジ山が外筒部材16aの螺合凹部23および外筒部材16bの螺合凹部23の先端のネジ溝と螺合する。さらに、その状態で、さらに右向きに回転させることによって、外筒部材16a,16bと一体となった軸芯部材17を回転させて、軸芯部材17の先端のネジ溝を被螺合物(後述する下カバー5のネジ係合体32)と螺合させることが可能となる。一方、ドライバを左向きに回転させた場合には、ヘッド部材15上でドライバとネジ突起21とが係合しないため回転しない。   When the screw 13 configured as described above is rotated rightward by pressing a minus driver against the vertical surface of the screw projection 21 of the head member 15, the driver and the vertical surface of the screw projection 21 are engaged with each other. 15 rotates to the right. Then, the thread of the shaft body 20 of the head member 15 is screwed with the screw groove 23 at the tip of the screw recess 23 of the outer cylinder member 16a and the screw recess 23 of the outer cylinder member 16b. Further, in this state, the shaft core member 17 integrated with the outer cylinder members 16a and 16b is rotated by further clockwise rotation, and the thread groove at the tip of the shaft core member 17 is screwed (described later). The screw engagement body 32) of the lower cover 5 can be screwed. On the other hand, when the driver is rotated to the left, the driver and the screw protrusion 21 do not engage with each other on the head member 15 so that the driver does not rotate.

また、電気ドリル等でヘッド部材15の上側に孔を設けてヘッド部材15を無理矢理にドライバと係合させて左向きに回転させた場合には、ヘッド部材15の軸体20と外筒部材16a,16bとの螺合状態が解除され、外筒部材16aの螺合凹部23および外筒部材16bの螺合凹部23によって形成される空洞の内部でヘッド部材15の軸体20が空回りした状態となる。したがって、ヘッド部材15を無理矢理に左向きに回転させた場合でも、外筒部材16a,16bと一体となった軸芯部材17が左向きに回転することはない。   Further, when a hole is provided on the upper side of the head member 15 with an electric drill or the like and the head member 15 is forcibly engaged with the driver and rotated leftward, the shaft body 20 of the head member 15 and the outer cylinder member 16a, The screwed state with 16b is released, and the shaft body 20 of the head member 15 is idled inside the cavity formed by the screwed recess 23 of the outer tube member 16a and the screwed recess 23 of the outer tube member 16b. . Therefore, even when the head member 15 is forcibly rotated leftward, the shaft core member 17 integrated with the outer cylinder members 16a and 16b does not rotate leftward.

一方、図2の如く、下カバー5は、上カバー6と同一幅に形成されており、上カバー6と同様に、左右両サイドに下固着翼27,27が連設されている。そして、各下固着翼27,27の上端縁には、それぞれ、先端を矢尻状に形成した係止突片11が突設されている。また、図5は、各下固着翼27の正面を示したものであり、各下固着翼27,27の上カバー6の各ネジ保持部9,9・・と対応する位置には、ネジ孔36を穿設してなるネジ係合体32,32・・が、支持アーム33,33および支持リブ34,34によって左右の壁板29,29等に支持された状態で設けられている。   On the other hand, as shown in FIG. 2, the lower cover 5 is formed to have the same width as the upper cover 6, and similarly to the upper cover 6, lower fixing wings 27, 27 are continuously provided on the left and right sides. And the latching protrusion 11 which formed the front-end | tip at the upper end edge of each lower adhering wing | blade 27 and 27 in the shape of an arrowhead is each protrudingly provided. FIG. 5 shows the front surface of each lower fixed wing 27, and a screw hole is provided at a position corresponding to each screw holding portion 9, 9... Of the upper cover 6 of each lower fixed wing 27,27. Screw engagement bodies 32, 32,... Formed by drilling 36 are provided in a state where they are supported by left and right wall plates 29, 29, etc. by support arms 33, 33 and support ribs 34, 34.

制御装置1は、基板4a,4bを下カバー5の内面に螺着した状態で、上カバー6の各上固着翼26,26を下カバー5の各下固着翼27,27に重ね合わせ、各係止突片11,11を各係止孔12,12に係止させた状態で、ワンウェイタイプのネジ13,13によって、左側の最上方のネジ保持部9(「1」を付したネジ保持部9)を左側の最上方のネジ係合体32に螺着し、右側の最下方のネジ保持部9(「1」を付したネジ保持部9)を右側の最下方のネジ係合体32に螺着することによって、組み立てられている。そして、ROM8やCPU等の種々の制御素子を搭載した基板4a,4bが、上カバー6および下カバー5によって覆われた状態になっている(なお、図1の如く、基板4a,4bは、上側の一部のみ露出した状態になっている)。   The control device 1 superimposes the upper fixing wings 26, 26 of the upper cover 6 on the lower fixing wings 27, 27 of the lower cover 5 with the substrates 4a, 4b screwed to the inner surface of the lower cover 5. In a state where the locking protrusions 11 and 11 are locked in the locking holes 12 and 12, the uppermost screw holding portion 9 (screw holding with “1” is held by the one-way type screws 13 and 13. 9) is screwed to the left uppermost screw engaging body 32, and the right lowermost screw holding part 9 (screw holding part 9 with "1") is attached to the right lowermost screw engaging body 32. It is assembled by screwing. Then, the substrates 4a and 4b on which various control elements such as ROM 8 and CPU are mounted are covered with the upper cover 6 and the lower cover 5 (Note that the substrates 4a and 4b are as shown in FIG. Only a part of the upper side is exposed).

上記の如く構成された制御装置1は、パチンコ機の裏面側の機構板等に設置された状態で使用される。そして、搭載されたROM8やCPU等の種々の制御素子によって、パチンコ機の作動内容を制御する。   The control device 1 configured as described above is used in a state of being installed on a mechanism plate or the like on the back side of the pachinko machine. Then, the operation contents of the pachinko machine are controlled by various control elements such as the mounted ROM 8 and CPU.

また、制御装置1は、上カバー6のネジ保持部9,9と下カバー5のネジ係合体32,32とが、ワンウェイタイプのネジ13,13によって螺着されているため、ネジ13を螺着時と反対方向(左回り)に回転させても、ネジ保持部9とネジ係合体32との螺着状態が解除されない。それゆえ、上カバー6を取り外す場合には、ネジ係合体32,32と螺着したネジ保持部9,9の前方に設けられた2つの取付片10,10・・を、ニッパ等の工具で切断し、かかるネジ保持部9,9を上カバー6から切り離すことによって、上カバー6と下カバー5とを分離しなければならない。   Further, since the screw holding portions 9 and 9 of the upper cover 6 and the screw engaging bodies 32 and 32 of the lower cover 5 are screwed by the one-way type screws 13 and 13 in the control device 1, the screws 13 are screwed. Even if it is rotated in the opposite direction (counterclockwise) from the time of wearing, the screwed state between the screw holding portion 9 and the screw engaging body 32 is not released. Therefore, when the upper cover 6 is removed, the two attachment pieces 10, 10... Provided in front of the screw holding portions 9, 9 screwed to the screw engaging bodies 32, 32 are removed with a tool such as a nipper. The upper cover 6 and the lower cover 5 must be separated by cutting and separating the screw holding portions 9 and 9 from the upper cover 6.

また、再度 上カバー6を下カバー5に合着させる場合には、左側の最上方のネジ係合体32および右側の最下方のネジ保持部9以外のネジ保持部9,9(すなわち、未だネジ係合体32と螺着していない同じ番号を付したネジ保持部9,9同士)を、それぞれ、ネジ13,13により同位置のネジ係合体32,32と螺着すれば良い。それゆえ、一旦、上カバー6と下カバー5とを分離した後でも、再度、上カバー6を下カバー5に合着させることができ、そのような上カバー6、下カバー5の分離、合着を4回繰り返すことができる。   When the upper cover 6 is reattached to the lower cover 5, the screw holding portions 9 and 9 other than the left uppermost screw engaging body 32 and the right lowermost screw holding portion 9 (that is, screws The screw holding portions 9 and 9 having the same numbers that are not screwed to the engaging body 32 may be screwed to the screw engaging bodies 32 and 32 at the same position by the screws 13 and 13, respectively. Therefore, even after the upper cover 6 and the lower cover 5 are once separated, the upper cover 6 can be attached to the lower cover 5 again. Wearing can be repeated four times.

制御装置1は、上記の如く、上カバー6を下カバー5と分離するためには、取付片10,10を切断することによりネジ係合体32,32と螺着されたネジ保持部9,9を上カバー6から切り離さなければならないため、上カバー6が取り外された場合には、必ずその痕跡が残る。それゆえ、上カバー6の開閉の有無を容易に把握することができる。それにも拘わらず、各取付片10,10が容易に切断可能な構造を有しているため、それらの取付片10,10をニッパ等の工具で切断することによって、上カバー6を容易に取り外して、基板8上に設置された制御素子の内容をチェックすることができる。   As described above, in order to separate the upper cover 6 from the lower cover 5, the control device 1 cuts the attachment pieces 10, 10 to cut the screw holding portions 9, 9 screwed to the screw engaging bodies 32, 32. Must be separated from the upper cover 6, so that the trace always remains when the upper cover 6 is removed. Therefore, it is possible to easily grasp whether the upper cover 6 is opened or closed. Nevertheless, since the mounting pieces 10 and 10 have a structure that can be easily cut, the upper cover 6 can be easily removed by cutting the mounting pieces 10 and 10 with a tool such as a nipper. Thus, the contents of the control elements installed on the substrate 8 can be checked.

その上、制御装置1は、ワンウェイタイプのネジ13の基端部(ヘッド部材15)が、軸部(軸芯部材17)に対して螺着可能になっているとともに、その基端部の軸部に対する螺着方向が、ネジ13の軸部の先端の下カバー5に対する螺着方向と同一に設定されている。したがって、電気ドリル等を利用して無理矢理にネジ13を回転させても、ネジ13の基端部の軸部に対する螺合状態が解除されるだけで、ネジ13自体の下カバー5に対する螺合状態(すなわち、軸芯部材17の先端の下カバー5に対する螺合状態)が保持されるので、取付片10,10・・を切断することなく上カバー6が不正に取り外される事態を効果的に防止することができる。したがって、制御装置1によれば、制御素子の不正取り替え、不正改造を効果的に防止することができる。なお、ネジ13の外筒部材16a,16bの上端際にはフランジ24が突設されているため、ネジ13の基端部の軸部に対する螺合状態が解除された場合でも(すなわち、ヘッド部材15の軸体20と外筒部材16a,16bとの螺合状態が解除された場合でも)、当該フランジ24によって上カバーが押さえ付けられた状態に保たれるので、下カバー5に対する上カバー6の螺合強度が低下したりしない。   In addition, the control device 1 is configured such that the base end portion (head member 15) of the one-way type screw 13 can be screwed to the shaft portion (shaft core member 17), and the shaft of the base end portion The screwing direction with respect to the portion is set to be the same as the screwing direction with respect to the lower cover 5 at the tip of the shaft portion of the screw 13. Therefore, even if the screw 13 is forcibly rotated using an electric drill or the like, the screw 13 is only screwed into the lower cover 5 by simply releasing the screwed state of the base end portion of the screw 13. (That is, the screwed state with respect to the lower cover 5 at the tip of the shaft core member 17) is maintained, so that it is possible to effectively prevent the upper cover 6 from being illegally removed without cutting the attachment pieces 10, 10,. can do. Therefore, according to the control device 1, unauthorized replacement and unauthorized modification of the control element can be effectively prevented. In addition, since the flange 24 protrudes at the upper end of the outer cylinder members 16a and 16b of the screw 13, even when the screwed state with respect to the shaft portion of the base end portion of the screw 13 is released (that is, the head member). 15), the upper cover is kept pressed by the flange 24, so that the upper cover 6 with respect to the lower cover 5 is maintained. The screwing strength does not decrease.

また、制御装置1は、ネジ13の基端部と軸部との螺着を解除した場合でも、基端部が軸部から外れないようになっているため、ネジ13の基端部が接着剤等によって軸部に接着された上で電気ドリル等によって無理矢理に回転させられる、という事態が起こりにくいので、取付片10,10・・を切断することなく上カバー6が不正に取り外される事態をより効果的に防止することができ、制御素子の不正取り替え、不正改造を一層効果的に防止することができる。   Further, the control device 1 prevents the base end of the screw 13 from being detached from the shaft even when the base end of the screw 13 and the shaft are released. Since the situation that it is forced to rotate with an electric drill or the like after being adhered to the shaft portion by an agent or the like is unlikely to occur, the situation where the upper cover 6 is illegally removed without cutting the mounting pieces 10, 10. It is possible to prevent more effectively, and to prevent unauthorized replacement and unauthorized modification of the control element.

なお、本発明の制御装置は、上記実施形態の態様に何ら限定されるものではなく、基板、上カバー、下カバー、ワンウェイタイプのネジ等の形状、構造等の構成を本発明の趣旨を逸脱しない範囲内で適宜変更することができる。   The control device of the present invention is not limited to the aspect of the embodiment described above, and the configuration of the substrate, the upper cover, the lower cover, the one-way type screw, and the like deviates from the gist of the present invention. It can change suitably within the range which does not.

たとえば、上カバーの各上固着翼に設けるネジ保持部の個数や、下カバーの左右の各下固着翼に設ける取付タブの個数は、4個に限定されず、3個以下あるいは5個以上でも良い。また、各上固着翼とネジ保持部とを連結する取付片の個数も、2個に限定されず、1個でも良いし、3個以上でも良い。さらに、上固着翼や下固着翼の設置位置は、上下カバーの左右両端縁に限定されず、上下カバーの上下両端縁でも良い。   For example, the number of screw holding portions provided on each upper fixing wing of the upper cover and the number of mounting tabs provided on each of the lower fixing wings on the left and right of the lower cover are not limited to four, and may be three or less or five or more. good. Further, the number of attachment pieces for connecting each upper fixing blade and the screw holding portion is not limited to two, and may be one or three or more. Furthermore, the installation positions of the upper fixing wing and the lower fixing wing are not limited to the left and right end edges of the upper and lower covers, but may be the upper and lower end edges of the upper and lower covers.

また、ネジ保持部を螺着するために用いるワンウェイタイプのネジは、上記実施形態の如く、先端が平坦なネジに限定されず、先端の尖った木ネジ等の他の形状を有するものでも良い。さらに、ヘッドに2個のネジ突起が設けられたものに限定されず、4個のネジ突起が設けられたプラスタイプのドライバで回転可能なもの等でも良い。また、ワンウェイタイプのネジは、ドライバによってはヘッド部分(基端部)が一方向しか回転しないものに限定されず、ヘッド部分が通常の+(プラス)タイプや−(マイナス)タイプのネジと同様に軸部に対して螺着・解除可能であるものに変更することも可能である(ヘッド部分をそのように構成しても、ネジは、ヘッド部分を一方向に回転させた場合にのみ軸部と螺合して軸部を回転させることができ、反対方向に回転させた場合には軸部を回転させることができないワンウェイタイプのものとして機能する)。   Further, the one-way type screw used for screwing the screw holding portion is not limited to a screw having a flat tip as in the above embodiment, and may have other shapes such as a wood screw having a sharp tip. . Further, the head is not limited to the one provided with two screw projections, and may be one that can be rotated by a plus type driver provided with four screw projections. In addition, the one-way type screw is not limited to a screw whose head portion (base end portion) rotates in only one direction depending on the driver, and the head portion is the same as a normal + (plus) type or-(minus) type screw. It is also possible to change it to one that can be screwed / released with respect to the shaft part (even if the head part is configured in such a way, the screw will only rotate when the head part is rotated in one direction. The shaft portion can be rotated by screwing with the portion, and if the shaft portion is rotated in the opposite direction, it functions as a one-way type that cannot rotate the shaft portion).

加えて、ワンウェイタイプのネジは、上記実施形態の如く、外筒部材と軸芯部材とが分離したものに限定されず、外筒部材と軸芯部材とが一体になったもの等に変更することも可能である。図6は、外筒部材と軸芯部材とが一体になったワンウェイタイプのネジを示したものである。ネジ43は、ヘッド部材15と略半円柱状に形成された2つの外筒部材42a,42bとによって形成されており、外筒部材42aの螺合凹部43,外筒部材42bの螺合凹部によって形成される空洞内に、ヘッド部材15の軸体20を嵌め込んで外筒部材42aおよび外筒部材42bを合着させることによって一体的に組み付けることができるようになっている。そのように構成した場合でも、上記実施形態のネジと同様に、電気ドリル等を利用して無理矢理にネジを回転させた場合に、ネジ41の基端部の軸部に対する螺合状態が解除されるだけで、ネジ41自体の下カバーに対する螺合状態が保持されるので、取付片を切断することなく上カバーが不正に取り外される事態を効果的に防止することができる。   In addition, the one-way type screw is not limited to one in which the outer cylinder member and the shaft core member are separated as in the above embodiment, but is changed to one in which the outer cylinder member and the shaft core member are integrated. It is also possible. FIG. 6 shows a one-way type screw in which an outer cylinder member and a shaft core member are integrated. The screw 43 is formed by the head member 15 and two outer cylinder members 42a and 42b formed in a substantially semi-cylindrical shape, and is formed by the screwing recess 43 of the outer cylinder member 42a and the screwing recess of the outer cylinder member 42b. The shaft member 20 of the head member 15 is fitted into the formed cavity, and the outer cylinder member 42a and the outer cylinder member 42b can be assembled together to be assembled together. Even in such a configuration, similarly to the screw of the above embodiment, when the screw is forcibly rotated using an electric drill or the like, the screwed state with respect to the shaft portion of the base end portion of the screw 41 is released. Therefore, since the screwed state of the screw 41 itself with the lower cover is maintained, it is possible to effectively prevent the upper cover from being illegally removed without cutting the attachment piece.

また、ワンウェイタイプのネジは、上記実施形態の如く、略半円柱状に形成された2つの外筒部材(あるいは外筒部材および軸芯部材)を組み付けて接着したものに限定されず、略半円柱状に形成された2つの外筒部材(あるいは外筒部材および軸芯部材)を組み付けて溶接することにより一体化したもの等に変更することも可能である。   Further, the one-way type screw is not limited to the one in which two outer cylinder members (or the outer cylinder member and the shaft core member) formed in a substantially semi-cylindrical shape are assembled and bonded as in the above-described embodiment. It is also possible to change to an integrated one or the like by assembling and welding two outer cylinder members (or outer cylinder member and shaft core member) formed in a columnar shape.

また、ワンウェイタイプのネジの外筒部材の形状は、上記実施形態の如き円筒状に限定されず、角柱状等の他の形状でも良い。また、外筒部材に設ける螺合凹部の形状も、上記実施形態の如き円柱状に限定されず、球状や角柱状の螺合凹部を外筒部材に設けることも可能である。一方、ワンウェイタイプのネジは、上記実施形態の如く、金属製のものに限定されず、硬質の合成樹脂やセラミックス等のその他の素材によって形成されたものでも良い。さらに、基端部(ヘッド部材)の材質と軸部(外筒部材および軸芯部材)の材質とを異ならせることも可能である。   Further, the shape of the outer cylinder member of the one-way type screw is not limited to the cylindrical shape as in the above embodiment, and may be other shapes such as a prismatic shape. Further, the shape of the threaded recess provided in the outer cylinder member is not limited to the cylindrical shape as in the above embodiment, and a spherical or prismatic threaded recess may be provided in the outer cylinder member. On the other hand, the one-way type screw is not limited to a metal screw as in the above-described embodiment, and may be formed of other materials such as hard synthetic resin and ceramics. Furthermore, the material of the base end (head member) and the material of the shaft (outer cylinder member and shaft core member) can be made different.

加えて、ワンウェイタイプのネジは、上記実施形態の如く、外筒部材の上端際にドーナッツ状のフランジを設けたものに限定されず、フランジのないものでも良い。さらに、フランジの形状を多角形状等に変更することも可能であるし、フランジの代わりに、外筒部材の外周面に1つあるいは複数の突起(形状は特に限定されない)を設けることも可能である。そのような構成を採用しても、ネジの基端部の軸部に対する螺合状態に関わらず当該突起によって上カバーが押さえ付けられた状態に保たれるので、下カバーに対する上カバーの螺合強度が低下したりしない。   In addition, the one-way type screw is not limited to the one provided with a donut-shaped flange at the upper end of the outer cylinder member as in the above embodiment, and may be one without a flange. Furthermore, it is possible to change the shape of the flange to a polygonal shape or the like, and it is also possible to provide one or a plurality of protrusions (the shape is not particularly limited) on the outer peripheral surface of the outer cylinder member instead of the flange. is there. Even if such a configuration is adopted, the upper cover is kept pressed by the projection regardless of the screwed state of the base end portion of the screw, so that the upper cover is screwed to the lower cover. The strength does not decrease.

また、ワンウェイタイプのネジを、フランジのないものとする場合には、基端部と軸部との螺合部分(すなわち、上記実施形態では、ヘッド部材の軸体のネジ山を周設した部分、および、外筒部材の螺合凹部)の長さをできるだけ短くすることが望ましい。そうすることによって、電気ドリル等を利用して無理矢理にネジの基端部と軸部との螺着を解除した場合に基端部の内面とネジ保持体の仕切板の表面との間に大きな隙間が形成される事態が回避されるので、上カバーと下カバーとの螺合強度が低下し、上カバーががたつく、という事態が起こりにくくなる。   Further, when the one-way type screw has no flange, the screwed portion between the base end portion and the shaft portion (that is, the portion in which the thread of the shaft body of the head member is provided in the above embodiment) And the length of the threaded recess of the outer cylinder member) is preferably as short as possible. By doing so, when the screwing of the base end portion of the screw and the shaft portion is forcibly released using an electric drill or the like, there is a large gap between the inner surface of the base end portion and the surface of the partition plate of the screw holder. Since a situation in which a gap is formed is avoided, the screwing strength between the upper cover and the lower cover is reduced, and a situation in which the upper cover rattles is less likely to occur.

また、ワンウェイタイプのネジは、外筒部材や軸芯部材の太さが一定であるものに限定されず、外筒部材や軸芯部材の一部が下カバーのネジ孔よりも大径であるものでも良い。かかる構成を採用した場合でも、外筒部材にフランジを設けた場合と同様に、ネジの基端部の軸部に対する螺合状態に関わらず当該突起によって上カバーが押さえ付けられた状態に保たれるので、下カバーに対する上カバーの螺合強度が低下したりしない。なお、外筒部材や軸芯部材の一部を下カバーのネジ孔よりも大径とする場合には、外筒部材や軸芯部材の外周にテーパ面を設ける等の方法により、大径の部分とその他の部分との間に屈曲点が形成されないように下側から上側にかけて連続的に径を大きくすることも可能である。   Further, the one-way type screws are not limited to those in which the thickness of the outer cylinder member or the shaft core member is constant, and a part of the outer cylinder member or the shaft core member has a larger diameter than the screw hole of the lower cover. Things can be used. Even when such a configuration is adopted, the upper cover is kept pressed by the protrusion regardless of the screwed state of the base end portion of the screw with respect to the shaft portion, similarly to the case where the flange is provided on the outer cylinder member. Therefore, the screwing strength of the upper cover with respect to the lower cover does not decrease. When a part of the outer cylinder member or the shaft core member has a larger diameter than the screw hole of the lower cover, a method of providing a tapered surface on the outer periphery of the outer cylinder member or the shaft core member, etc. It is also possible to continuously increase the diameter from the lower side to the upper side so that a bending point is not formed between the portion and the other portion.

なお、上記実施形態においてはパチンコ機に使用される制御装置について説明したが、本発明の制御装置が使用される遊技機は、スロットマシーンやテレビゲーム等のパチンコ機以外の遊技機でも良い。   In addition, although the control apparatus used for the pachinko machine was demonstrated in the said embodiment, the game machines using the control apparatus of this invention may be game machines other than pachinko machines, such as a slot machine and a video game.

遊技機用制御装置の正面図である。It is a front view of the control device for gaming machines. 図3におけるA−A線断面を示す説明図である(bはaにおける波線部分の拡大図である)。It is explanatory drawing which shows the AA line cross section in FIG. 3 (b is an enlarged view of the wavy line part in a). ワンウェイタイプのネジの正面図である。It is a front view of a one-way type screw. ワンウェイタイプのネジの分解図である。It is an exploded view of a one-way type screw. 右側の下固着翼の正面を示す説明図である。It is explanatory drawing which shows the front of the right lower fixed wing | blade. ワンウェイタイプのネジの変更例を示す説明図である(aは正面図であり、bは分解図であり、cは底面図である)。It is explanatory drawing which shows the example of a change of a one-way type screw (a is a front view, b is an exploded view, and c is a bottom view).

符号の説明Explanation of symbols

1・・制御装置
4a,4b・・基板
5・・下カバー
6・・上カバー
8・・制御素子
9・・ネジ保持部
13・・ネジ
15・・ヘッド部材
16a,16b・・外筒部材
17・・軸芯部材
1..Control device 4a, 4b..Substrate 5..Lower cover 6..Upper cover 8..Control element
9. Screw holding part 13. Screw 15. Head member 16a, 16b Outer cylinder member 17. Shaft core member

Claims (2)

上カバー、およびその上カバーと合致する下カバーによって、制御素子を設置した基板が覆われた遊技機用制御装置であって、
前記上カバーの端縁に切断可能な複数のネジ保持部が設けられており、それらのネジ保持部の内の少なくとも1つが、ワンウェイタイプのネジによって前記下カバーに螺着されているとともに、
前記ネジが、
前記ワンウェイタイプのネジ頭を有するヘッド部材と、
前記ヘッド部材を螺着可能な軸部と
からなり、
さらに、前記軸部が、
半円柱状に形成され、その基端側に前記ヘッド部材を螺着するためのネジ溝を有する一方、先端側に嵌合凹部を備えた一対の外筒部材と、
先端側の周面に前記下カバーへ螺着するためのネジ溝が周設されている一方、基端部に径方向へ突出する位置決め突起を有する円柱状に形成されており、前記基端部を前記嵌合凹部内へ位置させ、前記位置決め突起を前記外筒部材の何れか一方に形成された固定孔へ差し込んだ状態で前記一対の外筒部材を組み付けることにより前記一対の外筒部材の先端側に固着される軸芯部材と
からなり、
前記ヘッド部材前記軸部に対する螺着方向が、前記軸部の前記下カバーに対する螺着方向と同一に設定されていることを特徴とする遊技機用制御装置。
A control device for a gaming machine in which a substrate on which a control element is installed is covered by an upper cover and a lower cover that matches the upper cover,
A plurality of severable screw holding portions are provided at an edge of the upper cover, and at least one of the screw holding portions is screwed to the lower cover with a one-way type screw,
The screw
A head member having the one-way type screw head;
A shaft portion to which the head member can be screwed;
Consists of
Further, the shaft portion is
A pair of outer cylinder members which are formed in a semi-cylindrical shape and have a thread groove for screwing the head member on the proximal end side thereof, and a fitting recess on the distal end side;
A thread groove for screwing to the lower cover is provided on the peripheral surface on the front end side, and the base end portion is formed in a columnar shape having a positioning projection protruding radially at the base end portion. Of the pair of outer cylinder members by assembling the pair of outer cylinder members in a state where the positioning projection is inserted into a fixing hole formed in one of the outer cylinder members. A shaft core member fixed to the tip side;
Consists of
The screwing direction relative to the shaft portion of the head member, the shaft portion of the game machine control apparatus characterized by being set equal to the screwing direction relative to the lower cover.
前記ヘッド部材のネジ山が設けられた先端部よりも基端側に、前記先端部よりも小径な軸部を設ける一方、
前記外筒部材の基端側に、前記ヘッド部材の先端部を収納可能な螺合凹部を、前記ネジ溝を覆うように設けるとともに、前記螺合凹部の基端縁に、内側へ突出するフランジ部を設け、前記フランジ部の内径を前記ヘッド部材の先端部よりも小径としており、
前記ヘッド部材と前記軸部との螺着を解除した場合でも、前記ヘッド部材前記軸部から外れないようになっていることを特徴とする請求項1に記載の遊技機用制御装置。
While providing a shaft portion having a smaller diameter than the distal end portion on the proximal end side relative to the distal end portion provided with the thread of the head member,
A flange that protrudes inward from the base end edge of the screw recess is provided on the base end side of the outer cylinder member so as to cover the screw groove with a screw recess that can accommodate the tip of the head member. Provided with a portion, the inner diameter of the flange portion is smaller than the tip of the head member,
Wherein even when the head member and to release the screwing between the shaft portion, a game machine control device according to claim 1, wherein the head member is characterized in that so as not to deviate from the shaft portion.
JP2007340066A 2007-12-28 2007-12-28 Control device for gaming machine Expired - Fee Related JP5110644B2 (en)

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* Cited by examiner, † Cited by third party
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JPS5435258Y2 (en) * 1977-03-24 1979-10-26
JPH0732129Y2 (en) * 1989-12-14 1995-07-26 株式会社壽 Knock type mechanical pencil
JPH0413275Y2 (en) * 1990-07-16 1992-03-27
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