JP4895002B2 - Hinge mechanism of gaming machine - Google Patents

Description

  The present invention relates to one hinge mechanism in a pair of upper and lower hinge mechanisms which are provided on the upper and lower sides of a gaming machine and hinged to open and close with respect to a base member.

  The hinge mechanism as described above is used in various game machines, and one example thereof is a hinge mechanism provided between an outer frame and a front frame in a pachinko machine, a sparrow ball game machine, or the like. The hinge mechanism of the pachinko machine connects the outer frame for fixing and holding formed in the shape of an outer rectangular frame and the front frame for opening and closing that covers the opening surface area of the outer frame, and the left and right front and upper sides of each other A gaming machine main body configured by attaching various game components to the front frame is hinge-connected to the outer frame so as to be able to be opened and closed sideways.

  By the way, the pachinko machine attracts the attention of the player when a new model is introduced and exhibits a high operating rate. On the other hand, after a certain period of time, the player moves to another new machine and the operating rate decreases. For this reason, in amusement facilities, a new machine is exchanged with a new model at a relatively short cycle except for models that have a high operation rate over a long period of time (so-called hit models). At this time, it is not efficient in terms of time and cost to remove the outer frame that is nail-fixed to the game island of the gaming facility and install a new outer frame. Thus, an exchange mode for exchanging the gaming machine main body is used. For this reason, the hinge mechanism of the pachinko machine is required to have a function of easily connecting and separating the outer frame and the front frame as well as a function of connecting the outer frame and the front frame so as to be relatively swingable. For this reason, in a hinge mechanism used in a gaming machine such as a pachinko machine, a hinge mechanism based on fitting between a hinge pin (shaft pin) and a pin receiving hole (shaft hole) is often used ( For example, see Patent Document 1).

Japanese Patent Laid-Open No. 9-47555 (page 3, FIGS. 3 and 4)

  However, a gaming machine body in which a game board, a back set board, a power supply unit, and various control devices are assembled in the front frame is a heavy object having an outer dimension of about 52 × 73 cm and a mass of about 15 to 20 kg. Even if it is a skilled worker, it is not an easy operation to align and connect a small-diameter hinge pin and a pin receiving hole while gripping a large and heavy object. Also, in this connection work, the hinge pin may be bent by hitting the end portion of the front frame side hinge member against the hinge pin of the outer frame side hinge member. There was a problem that the outer frame had to be removed and replaced with a new outer frame.

  Furthermore, in the state where the outer frame and the gaming machine main body are separated, the hinge pin fixed to the flat plate-like portion is exposed and disposed, so that it is easy to hook an object on the hinge pin protruding from the plate-like portion. , The clothes or body part is caught on the hinge pin of the outer frame side hinge member fixed to the game island and damaged, or the clothes are hooked on the hinge pin of the front frame side hinge member fixed on the gaming machine body side. There was a problem that the machine body could be overturned.

  The present invention has been made in view of the circumstances as described above, and provides a hinge mechanism that can be easily hinged even by an unskilled worker, and a problem caused by the protrusion of the hinge pin. An object of the present invention is to provide a hinge mechanism that can suppress the above.

Above achieve the objectives, a hinge mechanism according to the present invention, the base member and the left or right swinging openably hinged to the front surface of the base member by a pair of upper and lower first hinge mechanism provided on one side a first opening and closing member connected to the pre-Symbol swing openably hinged by a first hinge mechanism of the upper and lower pair provided on the same side of the side portion and the second hinge mechanism in front of the first opening and closing member And a second opening / closing member. The first hinge mechanism located above the pair of upper and lower first hinge mechanisms is fixed to the opening / closing side plate-like portion that is fixed to the side portion of the first opening / closing member and extends forward and backward. and a shaft portion made of said base member base hinge member configured to have a bearing portion for engaging with the shaft portion provided on the base side plate-like portion extending in the front and is fixed to the side of the When the shaft portion engages with the bearing portion and engages with each other so as to be rotatable about a rotation center axis extending vertically through the center of the shaft portion, the first opening / closing member is engaged with the base member. It is configured to be hinged so as to be swingable and openable about the rotation center axis. Further, the second hinge mechanism located above the pair of upper and lower second hinge mechanisms is slid up and down by the pin support portion provided on the upper side of the second opening / closing member and the pin support portion. wherein the axially supported by the pin member to be, and a biasing member for biasing said pin member upwardly with respect to the pin support portion, while being formed prior to the central axis of rotation and coaxially extends Kijiku portion A pin receiving hole that receives the pin member and is rotatably engageable with the pin member; the pin member is received in the pin receiving hole and engaged therewith; The second opening and closing member is configured to be hinged so as to be swingable and openable about the rotation center axis. In addition, the pin member has an operation portion that protrudes laterally and can be operated from the outside, and by pushing down the operation portion, the pin member is moved downward against the urging force of the urging member. It is configured to be slidable .

As described above, the hinge mechanism according to the present invention is a pair of upper and lower first hinges that swingably open and close the first opening / closing member (for example, the front frame 2) to the base member (for example, the outer frame 1). A first opening / closing member having a mechanism and a second opening / closing member that is a single second hinge mechanism that hinges the second opening / closing member so as to be swingable and openable with respect to the first opening / closing member. The hinge mechanism is configured such that the first opening / closing member is engaged with the base member by engaging the shaft portion with the bearing portion so as to be rotatable about a rotation center axis extending vertically through the center of the shaft portion. It is configured to be hinged so as to be swingable and openable about the fitting shaft. Further, the second hinge mechanism located above is configured to urge the pin member pivotally supported by the pin support portion so as to be slidable up and down by the urging member, and the pin member is inserted into the pin receiving hole. Since the second opening / closing member is hingedly connected to the first opening / closing member by being received from below and engaged with the first opening / closing member, the structure of the hinge mechanism is simplified. . In particular, since the pin receiving hole is provided in the shaft portion, the shaft portion serves as an element constituting the rotary connection structure in both hinge mechanisms, so that the configuration is simplified.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 show a pachinko machine PM as a representative example of a gaming machine equipped with the present invention. First, the overall configuration of the pachinko machine PM will be briefly described with reference to these drawings. Here, FIG. 1 is a front view of the pachinko machine PM, and FIG. 2 is a front view of the pachinko machine PM (a rear view of the game machine body) showing a state in which the front frame (game machine body) is opened with respect to the outer frame. .

  The pachinko machine PM is configured to have a rectangular frame size and a front frame 2 configured to have a rectangular frame size corresponding to the opening front of the outer frame 1 that forms a vertically fixed holding frame. Using a pair of upper and lower frame hinge mechanisms WH provided on the left side of the front, it is attached to the front so that it can be opened, closed, and detached, and is always used using a locking device 4 called a double lock provided on the right side of the front. Is held in a closed state engaged with the outer frame 1.

  At the upper front side of the front frame 2, a rectangular glass door 5 that matches the upper front area of the front frame 2 is opened and opened horizontally by using a pair of upper and lower door hinge mechanisms TH provided on the left side of the front. It is assembled in a detachable manner and is held in a closed state covering the front upper part of the front frame 2 by a locking device 4 provided on the right side of the front.

  At the lower part of the front side of the front frame 2, a ball tray unit 6 matched to the lower front area of the front frame 2 is assembled so as to be opened and closed laterally and detachable using a ball dish hinge mechanism provided on the left side of the front frame. The lock mechanism that is attached to the locking device 4 is held in a closed state that covers the lower front portion of the front frame 2. Below the ball tray unit 6, a lower ball tray 7 for storing game balls that cannot be stored in the ball tray unit 6, and a launch handle 8 that performs a launch operation of the game balls are attached.

  Behind the glass door 5 is provided a housing frame 2a formed in a frame shape somewhat larger than the outer dimensions of the game board 10, and here the game board 10 configured with a predetermined gauge setting is provided. The player is allowed to face the game area PA in the front through the glass door 5 which is detachably accommodated and always held closed.

  On the back side of the front frame 2, an upper back set board 30 a having ball processing mechanisms such as a ball storage tank 31 for storing game balls, a tank rail 32, a ball payout device 33, a ball payout passage 34, a power supply board 36, A lower back set board 30b that is detachably equipped with a circuit board such as a ball payout control board 37 is hinged so that it can be opened and closed laterally, and circuit boards, electronic parts, decorations arranged in each part Each device such as a lamp is connected by a connector cable (not shown) so that the pachinko machine can operate.

  The pachinko machine PM is used in a game in which the front frame 2, the glass door 5 and the ball tray unit 6 are all closed and locked, and the game ball is stored in the upper ball tray of the ball tray unit 6 and the launch handle 8 is set. A game is started by rotating the game. When the firing handle 8 is rotated, the game balls stored in the upper ball tray are launched one by one into the game area PA by the hitting ball launching device, and then the pachinko game is developed.

  In the pachinko machine PM schematically configured as described above, the front frame 2 is attached to the outer frame 1 so as to be opened and closed laterally and detachable by a pair of upper and lower frame hinge mechanisms WH, and the glass door 5 is a door hinge. It is attached to the front frame 2 by a mechanism TH so that it can be opened, closed, and detached. Hereinafter, these hinge mechanisms will be described in detail with reference to the drawings. Hereinafter, of the pair of upper and lower frame hinge mechanisms WH, the hinge mechanism provided at the upper part is referred to as a frame upper hinge mechanism WH1, and the hinge mechanism provided at the lower part is referred to as a frame lower hinge mechanism WH2. Of the pair of upper and lower door hinge mechanisms TH, the hinge mechanism provided at the upper part is referred to as a door upper hinge mechanism TH1, and the hinge mechanism provided at the lower part is referred to as a door lower hinge mechanism TH2.

  First, the frame hinge mechanism WH will be described with reference to FIGS. 3 is an exploded perspective view showing an outline of the frame upper hinge mechanism WH1, FIG. 4 is an exploded perspective view showing an outline of the frame lower hinge mechanism WH2, and FIGS. 5 and 6 are a plan view of the frame upper hinge mechanism WH1. FIG. 7 is a plan sectional view in the direction of arrow VII in FIG. 6, FIG. 8 is a plan sectional view in the position direction (in the direction of arrow VII) similar to FIG. 7 with the front frame 2 opened, and FIG. 6 is a side sectional view in the direction of arrow IX in FIG. 6, and FIG. 10 is a side sectional view of the frame lower hinge mechanism WH2 in the position direction (in the direction of arrow IX) as in FIG.

  The frame upper hinge mechanism WH1 includes an outer frame side hinge fitting 110 fixed to the upper left corner of the outer frame 1 and a front frame side hinge fitting 120 fixed to the upper left corner of the front frame 2. .

  The front frame side hinge fitting 120 is mainly composed of a flat plate-like hinge plate portion 121 extending in the front-rear direction and a shaft portion 123 protruding upward and fixed to the tip portion of the hinge plate portion 121. A fixed side portion 122 that is bent downward and extends downward along the rear surface of the front frame 2 is formed on the rear end side of the hinge plate portion 121, and is fitted with a positioning pin on the front frame side so as to be fitted to the front frame side hinge. A pin hole for positioning the metal fitting 120 and a screw insertion hole for inserting a metal fitting fixing screw are formed.

  The shaft portion 123 has a cylindrical shape that protrudes upward from the hinge plate portion 121, and a slit-shaped split groove 125 that extends obliquely in the front-rear direction in the closed posture of the front frame 2 is formed at the upper end thereof (FIG. 3, FIG. (See FIG. 7 etc.) Specifically, the shaft portion 123 has a cylindrical shape with a diameter of about 12 to 20 mm, a protrusion height from the top surface of the hinge plate 121 of about 6 to 12 mm, a width of about 4 to 6 mm, and a depth of 3 at the upper end. A split groove 125 of about ˜5 mm is formed at the upper end of the shaft portion.

  On the front end side of the split groove 125, one of the left and right groove wall surfaces (the groove wall surface located on the front side in the closed posture of the front frame 2 shown in FIG. 7) opens outwardly of the groove width, An introduction wall surface 127 that guides the engagement is formed. Further, a pin receiving hole 128 is formed in the lower portion of the shaft portion 123 so as to open to the lower surface side of the front frame side hinge fitting 120 and receive a hinge pin 323 of the door hinge mechanism TH described later.

  The front frame side hinge metal fitting 120 is formed by, for example, crimping a shaft portion 123 formed in the above shape by cutting on a hinge plate portion 121 formed by punching and bending a steel plate having a thickness of about 2.3 to 3.2 mm. It is integrally formed by fixing, and is configured by performing surface treatment such as chromate treatment as necessary. And the front frame side hinge metal fitting 120 is positioned by fitting the pin hole formed in the fixed side part 122 with the positioning pin formed in the back side upper end part of the front frame 2, and the pin insertion hole of the fixed side part 122 The front frame side hinge metal fitting 120 is positioned and fixed to the upper left corner of the front frame 2 (see also FIG. 2).

  When the front frame side hinge fitting 120 is attached to the front frame 2, the hinge plate portion 121 extends forward and backward along the upper surface of the front frame 2, and its front end portion is disposed to protrude somewhat forward from the front frame 2. The split groove 125 formed in the shaft portion 123 is disposed so as to extend obliquely in the front-rear direction with respect to the front-rear surface of the front frame 2. In the present embodiment, a configuration example is shown in which the formation angle of the split groove 125 is set to an angular position of 30 degrees with respect to the front and rear surfaces of the front frame 2 (see FIGS. 7 and 8).

  The outer frame side hinge fitting 110 is connected to a flat plate-like hinge plate portion 111 extending in the front-rear direction, a bearing portion 113 provided at the front end portion of the hinge plate portion and engaged with the outer peripheral surface of the shaft portion 123, and the bearing portion 113. A guide part 114 extending rearward and having a rear part opened, a holding protrusion 115 provided rearwardly of the bearing part 113 and projecting downward with an outer width dimension corresponding to the groove width of the split groove 125 provided on the hinge plate part 111, etc. The main body is formed.

  The bearing portion 113 is formed in a semi-cylindrical shape in which the periphery of the front end side of the hinge plate portion 111 is bent downward and opened downward, and the diameter of the inner peripheral surface of the cylinder is slightly smaller than the outer diameter of the shaft portion 123. Is set to be larger. Of the left and right side wall surfaces that are connected to the cylindrical wall surface that forms the bearing portion 113 and extends rearward, the right side wall surface extends somewhat longer than the diameter of the shaft portion 123, and then the rear portion is cut away to the right side. While the opening 116 that opens is formed, the left side wall surface extends obliquely rearward to the left without being cut out, and a guide wall 117 that guides the shaft portion 123 to the bearing portion 113 is formed.

  The guide portion 114 is formed on the lower surface side of the hinge plate portion 111 by an opening portion 116 formed behind the right side wall surface and a guide wall 117 covering the left side, and a shaft portion 123 introduced from the opening portion 116 is a bearing. It is comprised so that it may guide to the part 113. FIG.

  The holding projection 115 is located behind the bearing portion 113 and protrudes from the lower surface side of the hinge plate portion 111. Each figure shows a configuration example in which a part of the hinge plate portion 111 is cut and raised downward to form a tongue-like holding projection, and the center position of the holding projection 115 in the left-right direction is the axis of the bearing portion 113. The distance between the inner surface of the cylindrical wall surface of the bearing portion 113 and the front surface of the holding projection 115 is set to be slightly larger than the diameter of the shaft portion 123. In addition, the horizontal width of the holding protrusion 115 is set to be slightly smaller than the groove width in accordance with the groove width of the dividing groove 125, and the protruding height of the holding protrusion 115 does not contact the groove bottom surface of the dividing groove 125. Is set to the height of

  The outer frame side hinge fitting 110 is formed, for example, by press-molding a steel plate having a plate thickness of about 2.3 to 3.2 mm, and is subjected to surface treatment such as chromate treatment as necessary. At the rear part of the hinge plate part 111, a fixed side part that is bent at a right angle in accordance with the upper left corner part of the outer frame 1 is provided, and this fixed side part projects into the upper left corner part of the outer frame 1. The outer frame-side hinge metal fitting 110 is positioned by the contact arrangement, and is fixed to the upper left corner of the outer frame 1 by rivet fastening to the upper frame rod and the left frame rod.

  When the outer frame side hinge fitting 110 and the front frame side hinge fitting 120 thus attached are hingedly connected, as shown in FIG. 8, the front frame 2 is opened at an angular position 60 degrees forward (hereinafter, for convenience). In the “removal angle position”), the direction of the split groove 125 rotated clockwise together with the front frame 2 is the front-rear direction, and the holding projection 115 slidably contacting the outer peripheral surface of the shaft portion 123 is The shaft portion 123 and the holding projection 115 are disengaged after the rearward alignment. For this reason, when the front frame 2 is tilted rearward at this attachment / detachment angle position, the split groove 125 receives the holding projection 115 and the shaft portion 123 moves between the bearing portion 113 and the guide portion 114, so that the outer The frame-side hinge fitting 110 and the front frame-side hinge fitting 120 can be engaged and disengaged. Further, when the front frame 2 is swung from the attachment / detachment angular position of the front frame 2 shown in FIG. 8 to another angular position (closed direction or open direction), the holding projection 115 is engaged with the outer peripheral surface of the shaft portion 123. Thus, the shaft portion 123 is held in the bearing portion 113, and the front frame 2 is supported so as to be swingable and openable about the fitting shaft CL between the shaft portion 123 and the bearing portion 113.

  In the above embodiment, the holding protrusion 115 is cut and raised on the hinge plate portion 111 and formed by molding. For example, a pin-shaped protrusion member having an outer diameter matching the groove width of the split groove 125 is used as the hinge plate. A holding projection is formed by welding a tongue-like or block-like projection member that is fixed to the portion 111 downward or that protrudes downward with an outer surface width matched to the groove width of the split groove 125 to the hinge plate portion 111. Also good.

  On the other hand, the frame lower hinge mechanism WH2 includes an outer frame side hinge fitting 210 fixed to the lower left edge of the outer frame 1 and a front frame side hinge fitting 220 fixed to the lower left corner of the front frame 2. The

  The outer frame side hinge fitting 210 is mainly composed of a flat hinge plate portion 211 extending in the front-rear direction and a conical engagement convex portion 213 formed by projecting upward at the tip of the hinge plate portion 211. The The rear portion of the hinge plate portion 211 extends rearward and is bent downward, and a fixed side portion is formed that extends along the rear surface of the curtain plate in the outer frame 1 and the inner surface of the left frame rod.

  For example, the engagement protrusion 213 has a maximum outer diameter of the engagement protrusion (an outer diameter at the upper surface position of the hinge plate portion 211) of about φ15 to 25 mm and an inclination angle of the conical surface of about 40 to 60 degrees. The engaging projection 213 is formed such that when the outer frame side hinge fitting 210 is attached to the outer frame 1, the center axis of the engagement projection 213 is the fitting axis CL in the frame upper hinge mechanism WH1 described above. It is set so that it may be arrange | positioned on this axis line.

  The front frame side hinge fitting 220 is mainly composed of a flat hinge plate portion 221 extending in the front-rear direction and a conical engagement recess 223 formed by opening downward at the tip of the hinge plate portion 221. . The engaging recess 223 has a conical inner peripheral surface whose inclination angle is set to the same angle as the outer peripheral surface of the engaging convex portion 213, while the maximum inner diameter of the engaging concave portion 223 (at the position of the lower surface of the hinge plate portion 221). Is set to be slightly smaller than the maximum outer diameter of the engaging convex portion (the outer diameter at the upper surface position of the hinge plate portion 211).

  Therefore, when the engaging convex portion 213 and the engaging concave portion 223 are engaged, the conical outer peripheral surface of the engaging convex portion 213 and the conical inner peripheral surface of the engaging concave portion 223 are in surface contact with each other and are common. And a predetermined interval is formed between the upper and lower hinge plate portions 211 and 221 so that sliding resistance due to direct contact between the hinge plates does not occur. (See FIG. 10).

  The rear portion of the hinge plate portion 221 extends rearward and is bent upward to form a fixed side portion 222 that extends upward along the rear surface of the front frame 2, and is fitted with a positioning pin on the front frame side. A pin hole for positioning the front frame side hinge fitting 220 and a screw insertion hole for inserting a fitting fixing screw are formed.

  For example, the outer frame side hinge fitting 210 and the front frame side hinge fitting 220 are each formed by punching a steel plate having a thickness of about 2.3 to 3.2 mm into a predetermined unfolded shape. Each of the engaging projections 213 and the engaging recesses 223 is formed by embossing, and a fixed side portion is bent and formed at the rear of the hinge plate portion, and is subjected to surface treatment such as chromate treatment as necessary. Configured.

  The outer frame side hinge fitting 210 is positioned by abutting the fixed side portion against the lower left inner corner of the outer frame 1 where the curtain plate and the left frame rod intersect, and is fixed on the left frame rod side. The outer frame side hinge fitting 210 is positioned and fixed to the lower left corner of the outer frame 1 by rivet fastening the sides and fastening the fixed sides on the curtain plate side with screws. The front frame side hinge fitting 220 is positioned by fitting a pin hole formed in the fixed side portion 222 to a positioning pin formed in the lower end on the back surface side of the front frame 2, and a pin insertion hole in the fixed side portion The front frame side hinge metal fitting 220 is positioned and fixed to the lower left corner of the front frame 2 (see FIG. 2).

  When the outer frame side hinge fitting 210 and the front frame side hinge fitting 220 are respectively attached in this way, the frame lower hinge mechanism WH2 is utilized by utilizing the fitting of the engagement convex portion 213 and the engagement concave portion 223 which are both formed into a conical shape. In the fitted state, the front frame side hinge fitting 220 is disposed so as to be rotatable and slidable around the central axis of the engaging convex portion by the action of the conical surfaces engaged with each other. The frame 2 is hinged to the outer frame 1 so as to be swingable and openable. In addition, the engagement convex part and the engagement recessed part should just have the conical surface which mutually engages, for example, the top cone shape (top view sectional hat shape) with which the upper end surface was closed may be sufficient.

  Next, the operation of the frame hinge mechanism WH composed of the frame upper hinge mechanism WH1 and the frame lower hinge mechanism WH2 configured as described above will be described.

  First, in order to make the upper and lower hinge mechanisms WH1 and WH2 hinge-coupled from the state in which the outer frame 1 and the front frame 2 are separated, the operator holds the left and right side edges of the front frame 2 and supports them. Pay attention to the hinge mechanism WH2. Then, the engagement concave portion 223 of the front frame side hinge metal fitting is roughly aligned with the engagement convex portion 213 of the outer frame side hinge metal fitting in an angle posture in which the front frame 2 is somewhat opened, and the engagement concave portion 223 is engaged with the engagement convex portion 213. The front frame side hinge fitting 220 is fitted and connected to the outer frame side hinge fitting 210.

  Here, in the frame lower hinge mechanism WH2, the engaging convex part 213 and the engaging concave part 223 to be fitted and connected are both formed in a conical shape. For this reason, the alignment of the engaging convex portion 213 and the engaging concave portion 213 may be a rough alignment so that the conical surfaces of the both are partially engaged, and the conical outer peripheral surface and the conical inner peripheral surface thereafter. Are automatically aligned by the guiding action, and are fitted in a direction in which the mutual axis centers coincide. Therefore, when it is difficult to perform delicate positioning while supporting the load, such as when the gaming machine main body, which is a heavy object with many gaming parts assembled to the front frame 2, is connected to the outer frame 1. Even so, the outer frame side hinge fitting 210 and the front frame side hinge fitting 220 can be easily hingedly connected.

  When the outer frame side hinge fitting 210 and the front frame side hinge fitting 220 are thus engaged, the load of the gaming machine main body is supported by the outer frame side hinge fitting 210, and in this state, the front frame 2 is tilted forward, backward, left and right. Will be able to. Therefore, this time, paying attention to the upper frame hinge mechanism WH1, the front frame 2 is tilted with the lower frame hinge fitting WH2 as a fulcrum, and the shaft portion 123 of the front frame side hinge fitting 120 is moved away from the open portion 116 of the outer frame side hinge fitting 110. The guide part 114 is entered.

  Next, as shown in FIGS. 11 (a) and 11 (b), the engagement process of the frame upper hinge mechanism WH1 is brought into contact with the outer peripheral surface of the shaft portion 123 that has entered the guide portion 114 to the guide wall 117, and the front frame 2 is The shaft portion 123 is moved obliquely forward along the guide wall 117 in an angle posture that is opened forward by about 15 to 60 degrees. Then, the split groove 125 formed at the upper end of the shaft portion 123 moves obliquely forward along the guide wall 117 together with the shaft portion, and receives the holding projection 115 on the front end side of the groove (see FIG. 11A). Here, on the front end side of the split groove 125, a groove wall surface on the guide wall 117 side is opened in a direction in which the groove width increases, and an introduction wall surface 127 is formed, and as is clear from FIG. The holding protrusion 115 is received in a wide angle range without strictly adjusting the angular position of the opening angle of 2, and the received holding protrusion is guided toward the center of the split groove 125.

  When the holding projection 115 enters the rear part of the introduction wall surface 127 (the narrow part of the split groove 125), the opening angle of the front frame is adjusted to the above-described attachment / detachment angular position, and the front frame 2 is tilted forward at this angular position. Then, as shown in FIG. 11 (b), the split groove 125 moves forward while receiving the holding projection 115, and the shaft portion 123 moves forward while being guided by the left and right side walls, as shown in FIG. Thus, the shaft portion 123 is fitted into the bearing portion 113.

  Here, in a state where the front frame 2 is opened forward, the load of the gaming machine main body tilts the front frame 2 forward with the frame lower hinge mechanism WH2 as a fulcrum, that is, the shaft portion 213 is cylindrically supported by the bearing portion 113. Acts as a moment in the direction pressed against the surface. For this reason, when the shaft portion 123 is fitted into the bearing portion 113, the fitting state between the shaft portion 213 and the bearing portion 113 is maintained unless the front frame 2 is tilted backward against the moment.

  Then, when the front frame 2 is swung from the attachment / detachment angular position to another angular position (closed direction or open direction) with the shaft portion 123 and the bearing portion fitted, the outer peripheral surface in front of the shaft portion 123 is moved. Engaging with the cylindrical inner peripheral surface of the bearing portion 113, the outer peripheral surface behind the shaft portion 123 engages with the front surface of the holding projection 115 to hold the shaft portion 123 in the bearing portion 113, and the outer frame side hinge Restriction is made so that the hinge connection between the metal fitting 110 and the front frame-side hinge metal fitting 120 is not removed (see FIG. 7). The gap between the upper surface of the shaft portion 123 and the lower surface of the hinge plate portion 111 in the fitted state is set to be smaller than the fitting height of the engaging convex portion 213 and the engaging concave portion 223 in the frame lower hinge mechanism WH2. The hinge connection of the frame hinge mechanism is not disengaged (see FIGS. 9 and 10).

  In a state where the upper and lower frame hinge mechanisms WH1 and WH2 are hinge-connected in this way, the gaming machine main body including the front frame 2 is fitted by the engagement of the conical engagement convex portion 213 and the engagement concave portion 223 of the frame lower hinge mechanism WH2. The load is supported, and the tilting in the front-rear and left-right directions is restricted by the fitting of the bearing portion 113 and the shaft portion 123 of the frame upper hinge mechanism WH1 and the presence of the holding projection 115, and the front frame 2 is moved to the upper and lower frame hinge mechanisms WH1. , WH2 is supported so as to be rotatable around a common fitting axis CL.

  On the other hand, when the hinge connection of the frame hinge mechanism WH is released and the front frame 2 is separated from the outer frame 1, the procedure reverse to that at the time of connection may be performed. That is, the front frame 2 is opened and set to the open angle position (FIG. 8), the upper portion of the front frame 2 is tilted rearward, and the shaft portion 123 is moved rearward of the guide portion 114 (FIG. 11 (b)). The front frame 2 is tilted to the right with the frame lower hinge mechanism WH2 as a fulcrum in a state in which the engagement between the holding projection 115 and the split groove 125 is released, and the shaft portion 123 is led out from the opening portion 116, and the outer frame side hinge fitting 110 And the front frame side hinge fitting 120 are released. Then, the front frame 2 is lifted obliquely upward to raise the engagement concave portion 223 from the engagement convex portion 213, and the engagement between the outer frame side hinge fitting 210 and the front frame side hinge fitting 120 of the frame lower hinge mechanism is released. Thereby, the hinge connection of the upper and lower frame hinge mechanisms WH1 and WH2 is released, and the outer frame 1 and the front frame 2 are separated.

  Therefore, according to the frame upper part hinge mechanism WH1 as described above, the front end of the shaft part 123 has a simple structure in which the split groove 125 is formed at the upper end and the bearing part 113 and the holding projection 115 are formed on the outer frame side hinge fitting. A hinge mechanism can be provided in which the frame 2 can be easily attached and detached and the hinge connection is firmly held in a state where the front frame 2 is closed. Further, by forming the holding projection 115 by cutting and raising the hinge plate portion 111 of the outer frame side hinge fitting downward, the holding projection 115 can be integrally formed during press molding of the outer frame side hinge fitting 110, Without increasing the number of parts, a hinge mechanism having the above effects can be obtained with a very simple configuration.

  Further, according to the frame lower hinge mechanism WH2, since the engaging convex portion 213 and the engaging concave portion 223 are both formed in a conical shape, even if the front frame 2 is large and heavy, delicate alignment is performed. Even in difficult cases, the outer frame side hinge fitting 210 and the front frame side hinge fitting 220 can be easily hinged using the guide action and self-aligning action of the cone outer circumference and the cone inner circumference. Can be made. Also, unlike the conventional hinge mechanism, the end of the hinge metal fitting is hit against the shaft pin, bent, clothes or body are caught on the shaft pin and damaged, and the gaming machine is overturned. Problems caused by protruding pins can be suppressed. Furthermore, since the engaging convex portion 213 and the engaging concave portion 223 are molded in each hinge plate portion, it can be integrally formed at the time of press molding of the hinge bracket, reducing the number of parts, and having an extremely simple configuration. A hinge mechanism having the above effects can be provided.

  Next, the door hinge mechanism TH that supports the glass door 5 so as to be freely opened and closed with respect to the front frame 2 will be described with reference to FIGS. 3, 6 to 9, and 12 that have already been referred to. The glass door hinge mechanism TH includes a door upper hinge mechanism TH1 and a door lower hinge mechanism TH2, and is provided above and below the left end of the glass door 5. FIG. 12 is a cross-sectional view taken along arrow XII-XII in FIG. 1, and is a side cross-sectional view of the door lower hinge mechanism TH2.

  The door lower hinge mechanism TH2 includes a front frame side hinge fitting 410 fixed to the middle portion of the left edge of the front frame 2, and a door side hinge fitting 420 fixed to the left lower corner of the glass door 5.

  The front frame side hinge fitting 410 is mainly composed of a flat plate-like hinge plate portion 411 extending in the front-rear direction and a hinge pin 413 that protrudes upward and is fixed to the front end portion of the hinge plate 411 by caulking. The rear portion of the hinge plate portion 411 is bent downward to form a fixed side portion 412 extending along the front surface of the front frame 2, and is fitted with a positioning pin on the front frame side to position the front frame side hinge fitting 410. A pin hole and a screw insertion hole through which the metal fitting fixing screw is inserted are formed.

  The position of the hinge pin 413 is set so that the center axis of the hinge pin 413 is on the same axis as the fitting axis CL of the frame hinge mechanism WH described above when the fixed side portion 412 is positioned and fixed on the front surface of the front frame. Has been. The upper end portion of the hinge pin 413 is chamfered in a tapered shape to facilitate the fitting with the pin receiving hole 423 of the door side hinge fitting, and the hinge plate portion 421 of the door side hinge fitting is provided at the base end portion of the hinge pin 413. An annular support surface is formed to support the sliding resistance when the glass door 5 is opened and closed.

  For example, the front frame side hinge fitting 410 is formed by punching a steel plate having a plate thickness of about 1.6 to 2.3 mm into a predetermined unfolded shape, bending the fixed side portion, and forming a diameter φ3 to 5 mm on the distal end side of the hinge plate portion 411. A hinge pin 413 having a protrusion height of about 5 to 8 mm is fixed by caulking and surface treatment such as chromate treatment is performed as necessary. In the present embodiment, the front frame side hinge fitting 410 is configured to serve also as the upper hinge fitting of the ball tray unit 6, and the hinge pin is protruded above and below the hinge plate portion 411.

  The door-side hinge fitting 420 includes a flat plate-like hinge plate portion 421 extending in the front-rear direction, and a pin receiving hole 423 formed at the tip of the hinge plate 421 with an inner diameter slightly larger than the shaft diameter of the hinge pin 413. It is composed mainly of. The rear portion of the hinge plate portion 421 is bent upward and extends upward along the back surface of the glass door 5 to form a left frame flange portion of the window frame frame surrounding the periphery of the glass window. A pin hole for positioning the door side hinge metal fitting 420 by fitting with a positioning pin on the rear surface of the glass door and a screw insertion hole for inserting a metal fitting fixing screw are formed in the left frame collar portion.

  A door side hinge fitting 320 of the door upper hinge mechanism TH1 is provided at the upper end of the left frame collar. The door upper hinge mechanism TH1 includes the above-described front frame side hinge fitting 120 and the door side hinge fitting 320 provided at the upper left corner of the glass door 5. In other words, in the pachinko machine PM, the front frame side hinge fitting 120 has a structure having both functions of the front frame side hinge fitting of the frame upper hinge mechanism YH1 and the front frame side hinge fitting of the door upper hinge mechanism TH. It has become.

  The door-side hinge fitting 320 includes a pin support portion 321 extending forward in parallel in the vertical direction, and a pin member 323 disposed on the pin support portion 321 so as to be slidable in the vertical direction. And an E-ring 325 that defines the upper end position of the pin member 323 that is fitted to the pin member 323 and biased upward.

  The pin support portion 321 is formed by bending the upper end portion of the left frame collar portion located directly below the hinge plate portion 121 in the front frame side hinge fitting 120 into a U-shape forward and lower support sides. Is provided with a pin support hole having an inner diameter slightly larger than the shaft diameter of the hinge pin 323 and positioned coaxially with the pin receiving hole 423 of the door lower hinge mechanism TH2. The pin member 323 includes an engaging shaft portion that extends vertically and an operation shaft portion that is formed by bending the lower end of the engaging shaft portion into an L shape. An E ring 325 is provided on the upper portion of the engaging shaft portion. A receiving ring groove is formed. The pin member 323 is configured by processing and forming a metal wire such as an aluminum alloy or stainless steel having a diameter of about 3 to 5 mm.

  The coil spring that biases the pin member 323 upward is, for example, a compression coil spring that is disposed inside the U-shaped pin support portion 321 and biases the E-ring 325 upward, or an operation shaft for the pin support portion 321 and the hinge pin. Known biasing means such as a tension coil spring that is stretched between the two and biasing the operating shaft portion upward can be used. As a result, the pin member 323 slidably supported by the pin support portion 321 is always urged upward, and the E ring 325 is disposed at the upper moving end position where the E ring 325 contacts the lower surface of the pin support portion 321. . The pin support portion 321 is provided with a downward movement restricting piece (not shown) that defines the position of the downward movement end portion of the E ring 325 and prevents the pin member 323 from falling off.

  The door-side hinge fitting 320 bypasses the operation shaft portion of the pin member 323 and extends downward along the back surface of the glass door 5 to form the left frame flange portion of the window frame frame described above. That is, the upper and lower door side hinge fittings 320 and 420 are provided on the left frame flange portion of the window frame frame, and the window frame frame is fitted with a positioning pin that is projected and molded on the back side of the glass door 5 and fixed with screws. Thus, the upper and lower door side metal fittings are arranged above and below the left edge of the glass door.

  On the other hand, the front frame side hinge fitting 120 is formed with a pin receiving hole 128 for receiving the pin member 323. The pin receiving hole 128 is located on the shaft center of the shaft portion 123 (that is, on the fitting shaft CL) and is formed to open to the lower surface side of the front frame side hinge fitting 120, and the inner diameter thereof is the outer diameter of the pin member 323. The hole depth is set somewhat deeper than the position of the upper end surface of the pin member 323 at the upper moving end position.

  In order to connect the upper and lower door hinge mechanisms TH1 and TH2 configured as described above, the left and right side edges of the glass door 5 are gripped and supported, and attention is first focused on the lower door hinge mechanism TH2. Then, with the glass door 5 opened at a slightly opened angle, the pin receiving hole 423 of the door side hinge fitting is aligned and fitted to the hinge pin 413 of the front frame side hinge fitting, and the front frame side hinge fitting 410 and the door side hinge are fitted. The metal fitting 420 is hingedly connected.

  When the door lower hinge mechanism TH2 is connected, this time, paying attention to the door upper hinge mechanism TH1, put the finger on the operation shaft portion of the pin member 323 and push it down, and the engagement shaft portion does not protrude greatly from the upper surface of the pin support portion 321. Move down to the lower end position. Next, the upper end side of the glass door 5 is tilted so that the door-side hinge fitting 320 is positioned directly below the front frame-side hinge fitting 120, and the downward operating force on the operation shaft portion is released. Then, the engaging shaft portion of the pin member 323 and the pin receiving hole 128 are aligned, and the tip end portion of the pin member 323 is fitted into the pin receiving hole 128.

  Here, since the pin receiving hole 128 is formed in the axial center of the shaft portion 123, the hole position of the pin receiving hole 128 can be easily assumed from the external appearance, and the tip of the pin member 323 and the opening of the pin receiving hole 128 are provided. A conical guide surface is formed on both edges, and coupled with the action of a coil spring that biases the pin member 323 upward, the pin member 323 and the pin receiving hole 128 can be easily fitted together. ing.

  When the tip of the pin member 323 is inserted into the pin receiving hole 128, the pin member 323 is biased upward by the spring force of the coil spring, and the upper moving end where the E-ring 325 contacts the lower surface of the pin support 321. The tip of the pin member 323 is accommodated and held in the pin receiving hole 128 with a predetermined fitting depth. The gap between the upper surface of the pin support portion 321 and the lower surface of the hinge plate portion 121 in the fitted state is set to be smaller than the protruding height of the hinge pin 413 in the door lower hinge mechanism TH2, and the glass door 5 can be lifted upward. The upper and lower door hinge mechanisms are not disconnected (see FIGS. 9 and 12).

  When the upper and lower door hinge mechanisms TH1 and TH2 are hinge-connected in this way, the load of the glass door 5 is supported by the fitting of the hinge pin 413 and the pin receiving hole 423 of the lower frame hinge mechanism TH2, and the upper door hinge mechanism TH1 By the fitting of the pin member 323 and the pin receiving hole 128, tilting in the front-rear and left-right directions is restricted, and the glass door 5 is a fitting shaft for the upper and lower door hinge mechanisms TH1 and TH2, and the above-described upper and lower frame hinge mechanisms. It is rotatably supported around a common fitting shaft CL which is also a fitting shaft for WH1 and WH2. In addition, when releasing the hinge connection of the door hinge mechanism TH and removing the glass door 5 from the front frame 2, it is sufficient to perform the reverse procedure of the above connection, and this operation can be easily understood by those skilled in the art. Therefore, the description is omitted here.

  Therefore, according to the door hinge mechanism TH as described above, when the door side hinge fitting 320 and the front frame side hinge fitting 120 are hinge-connected, the tip of the pin member 323 is the axis of the front frame side hinge fitting. It is housed inside the portion 123 and the head of the pin member 323 is not exposed and disposed. Therefore, it is possible to effectively suppress an illegal act against the door hinge mechanism TH. Further, since the tip end portion of the pin member 323 is accommodated in the shaft portion 123, there is no obstacle when connecting and separating the frame hinge mechanism WH, and good workability can be ensured. Further, since the pin receiving hole 128 is formed using the shaft portion of the front frame side hinge fitting 120, the door hinge mechanism TH can be configured simply and inexpensively.

It is a front view of the pachinko machine shown as an example of the gaming machine provided with the hinge mechanism according to the present invention. It is a front view (back view of a gaming machine main body) of the pachinko machine showing a state in which a front frame (gaming machine main body) is opened with respect to an outer frame. It is a disassembled perspective view which shows the outline | summary of a frame upper part hinge. It is a disassembled perspective view which shows the outline | summary of a frame lower part hinge mechanism. It is a top view of a frame upper part hinge mechanism. It is a front view of a frame upper part hinge mechanism. It is a plane sectional view of the VII arrow direction in FIG. It is a plane sectional view of a position direction (VII arrow direction) like FIG. 7 in the state where the front frame is opened. It is a sectional side view of the IX arrow direction in FIG. FIG. 10 is a side sectional view of the frame lower hinge mechanism in the position direction (IX arrow direction) as in FIG. 9. It is explanatory drawing for demonstrating the engagement process of a frame upper part hinge mechanism, Among these, (a) figure is an engagement initial stage, (b) figure is an outer frame side hinge metal fitting in the engagement late stage, and a front frame side hinge metal fitting. It is drawing (plane sectional drawing in a height position similarly to FIG. 7) which shows a relative relationship. It is a sectional side view of the XII-XII arrow direction added in FIG. 1, and is a sectional side view of a door lower hinge mechanism.

Explanation of symbols

CL Fitting shaft PM Pachinko machine TH Door hinge mechanism TH1 Door upper hinge mechanism TH2 Door lower hinge mechanism WH Frame hinge mechanism WH1 Frame upper hinge mechanism WH2 Frame lower hinge mechanism 1 Outer frame 2 Front frame 5 Glass door 110 Outer frame side hinge fitting 111 Hinge plate portion 113 Bearing portion 114 Guide portion 115 Holding projection 120 Front frame side hinge fitting 121 Hinge plate portion 123 Shaft portion 125 Split groove 127 Introduction wall surface 128 Pin receiving hole 210 Outer frame side hinge fitting 211 Hinge plate portion 213 Engaging projection Portion 220 front frame side hinge fitting 221 hinge plate portion 223 engaging recess 320 door side hinge fitting 323 pin member 410 front frame side hinge fitting 411 hinge plate portion 413 hinge pin 420 door side hinge fitting 421 hinge plate portion 423 pin receiving hole

Claims (1)

Base member and a first closing member, which is rotationally opened and closed freely hinged to the front face of the base member by a pair of upper and lower first hinge mechanism provided on the left or right one side, pre Symbol first hinge A hinge mechanism of a gaming machine comprising a second opening / closing member hinged to be swingably opened / closed on the front surface of the first opening / closing member by a pair of upper and lower second hinge mechanisms provided on the same side as the mechanism Because
The first hinge mechanism located above the pair of upper and lower first hinge mechanisms is fixed to the side part of the first opening / closing member and is fixed to the opening / closing side plate-like part extending in the vertical direction. And a base side hinge member configured to include a bearing portion that is provided on a base side plate-like portion that is fixed to a side portion of the base member and extends in the front-rear direction, and that engages with the shaft portion,
The first opening / closing member is engaged with the base member by engaging the shaft portion with the bearing portion so as to be rotatable about a rotation center axis extending vertically through the center of the shaft portion. It is configured to be hinged so as to be swingable and openable about the rotation center axis,
The second hinge mechanism located above the pair of upper and lower second hinge mechanisms is slidable up and down by a pin support portion provided on an upper side portion of the second opening / closing member and the pin support portion. said pin member and axially supported by the pin member, said biasing member to the pin member is biased upward, is formed in a center of rotation coaxial with the axis extending in front Kijiku portion relative to the pin support portion And a pin receiving hole that can be rotatably engaged with this,
By receiving the pin member in the pin receiving hole and engaging with the pin receiving hole, the second opening / closing member is hingedly connected to the first opening / closing member so as to be swingable and openable about the rotation center axis. Is configured as
The pin member has an operation part that protrudes laterally and can be operated from the outside, and the pin member is slid downwardly against the urging force of the urging member by depressing the operation part. A hinge mechanism of a gaming machine, which is configured to be capable of

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