JP2007135754A - Hinge device of pachinko machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the connection operability of a hinge pin and a pin receiving mechanism and to make the pin receiving mechanism into simple constitution. <P>SOLUTION: The pin receiving mechanism 25 in the hinge device of a pachinko machine is provided with a pin receiving piece 29, a pin pressing member 34 and a pressing force receiving part 34r provided on the pin pressing member 34, and the recessed part 31 of the pin receiving piece 29 is configured to smoothly lead the hinge pin to a bearing part 32. When the pressing force of the hinge pin is applied to the pressing force receiving part 34r of the pin pressing member 34 in the process of fitting the hinge pin to the bearing part 32, the pin pressing member 34 is slid in the direction of opening the entrance 32e of the bearing part 32 against elastic force by the pressing force. When the hinge pin is fitted to the bearing part 32 and is detached from the pressing force receiving part 34r, the pin pressing member 34 is slid in the direction of closing the entrance 32e of the bearing part 32 by the elastic force. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is a structure that is fixed to the upper corner of the door-shaped front frame, and has a pin-side fixing member having a hinge pin that serves as a rotation center of the front frame, and an upper corner of the outer frame that supports the front frame. The present invention relates to a hinge device for a pachinko machine having a fixed structure and a pin receiving mechanism that rotatably supports a hinge pin of the pin-side fixing member.

Various proposals have been made regarding hinge devices for pachinko machines.
For example, the hinge device described in Patent Document 1 includes a pin receiving mechanism 100 at the upper corner of the outer frame 10 as shown in FIG. The pin receiving mechanism 100 has a pin receiving piece 102 that protrudes in front of the outer frame 10 in a substantially horizontal state. At the front end portion of the pin receiving piece 102, a concave portion 104 having a planar view shape formed so that the hinge pin 22 of the front frame 12 can be fitted from the front is provided. The concave portion 104 is formed in a substantially inverted L shape, and is configured to be able to rotatably support the hinge pin 22 at the innermost portion (see FIG. 7B). In addition, the pin receiving mechanism 100 includes a pin pressing member 105 that is mounted on the pin receiving piece 102 so as to be slidable back and forth. The pin presser member 105 is a member for preventing the hinge pin 22 from coming off from the concave portion 104 of the pin receiving piece 102. As shown in FIGS. 7B and 7C, a rod-like pin presser main body that blocks the inlet of the concave portion 104 is used. 105m and a U-shaped hook portion 105f protruding laterally from the pin presser main body 105m. And, with the pin presser main body 105m closing the entrance of the recess 104, the hook portion 105f is configured to be able to engage with the hinge pin 22 fitted to the innermost portion of the recess 104 from the rear. Further, a stopper lever 108 that restricts the sliding range of the pin pressing member 105 is connected to the base end portion of the pin pressing member 105. In addition, the pin receiving mechanism 100 is provided with an elastic body (not shown) that holds the pin pressing member 105 at a position that closes the entrance of the concave portion 104 of the pin receiving piece 102.

  In order to connect the hinge pin 22 on the front frame 12 side and the pin receiving mechanism 100 on the outer frame 10 side, first, as shown in FIG. 7C, the hinge pin 22 is moved from the front to the entrance of the concave portion 104 of the pin receiving piece 102. The pin presser member 105 is slid rearward against the force of the elastic body with the hinge pin 22 while being pushed straight down. Next, as shown in FIG. 7B, the hinge pin 22 is moved laterally to the innermost part along the shape of the concave shape of the concave portion 104. As a result, the hinge pin 22 is rotatably supported at the innermost portion of the recess 104, and the hinge pin 22 comes off from the tip of the pin pressing member 105. As a result, the pin pressing member 105 is returned forward to a position where it closes the entrance of the recess 104 by the force of the elastic body, and the hook portion 105f of the pin pressing member 105 is hooked on the outer peripheral surface of the hinge pin 22 from the rear. In this state, the hinge pin 22 is prevented from coming off, and the connection between the hinge pin 22 and the pin receiving mechanism 100 is completed.

Japanese Patent Laid-Open No. 10-314412

However, in the above-described hinge device, the hinge pin 22 on the front frame 12 side is pushed straight from the front into the entrance of the concave portion 104 of the pin receiving piece 102 and then moved laterally along the shape of the concave portion 104 to the innermost portion. , A two-step operation is required. Further, the pin pressing member 105 not only closes the entrance of the recess 104 of the pin receiving piece 102 but also includes a hook portion 105f that is hung on the outer peripheral surface of the hinge pin 22, and thus has a complicated shape. Further, since the sliding range of the pin pressing member 105 is restricted by the stopper lever 108, the operation mechanism is complicated, the number of parts is large, and the number of assembling steps is increased.
The present invention has been made to solve the above-mentioned problems, and the technical problem of the present invention is to improve the connection operability between the hinge pin and the pin receiving mechanism, as well as to simply configure the pin receiving mechanism. This is to reduce the assembly man-hours.

The above-described problems are solved by the inventions of the claims.
The invention according to claim 1 is a structure that is fixed to the upper corner of the door-shaped front frame, and includes a pin-side fixing member having a hinge pin that serves as a rotation center of the front frame, and an upper frame that supports the front frame. A hinge device for a pachinko machine having a structure that is fixed to a corner portion and rotatably supporting a hinge pin of the pin-side fixing member. A pin receiving piece that protrudes forward of the frame and includes a recess configured to allow the hinge pin to be engaged from the side, and that rotatably supports the hinge pin at a position of a bearing portion provided at the innermost portion of the recess. A pin holding member that is supported in a slidable forward and backward direction with respect to the pin receiving piece, and is held at a position that closes an entrance of the bearing portion in the pin receiving piece by an elastic force, and provided in the pin holding member And its A pressing force receiving portion configured to receive the pressing force of the outer peripheral surface of the hinge pin to be pushed into the bearing portion when the pressing member is in a position to close the inlet of the bearing portion. The concave portion of the pin receiving piece is configured so that the hinge pin can be smoothly guided to the bearing portion, and the pressing force of the hinge pin is pressed by the pin pressing member in the process of fitting the hinge pin with the bearing portion. When applied to the pressure receiving portion, the pin pressing member slides in a direction to open the inlet of the bearing portion against the elastic force due to the pressing force, and the hinge pin is fitted to the bearing portion so as to receive the pressing force receiving portion. The pin holding member slides in a direction to close the inlet of the bearing portion by the elastic force when it is detached from the portion.
The pin holding member closing the inlet of the bearing portion means closing the inlet to the extent that the hinge pin does not come off the bearing portion, and the concept of closing the inlet even when there is a slight gap in the inlet. Shall be included.

According to the present invention, the concave portion of the pin receiving mechanism (pin receiving piece) is configured so that the hinge pin of the front frame can be smoothly guided to the innermost bearing portion, and the hinge pin is pushed into the bearing portion of the concave portion. Thus, the outer peripheral surface of the hinge pin presses the pressing force receiving portion of the pin pressing member. Accordingly, the pin pressing member slides in a direction to open the entrance of the bearing portion of the pin receiving piece against the elastic force. When the hinge pin is engaged with the bearing portion of the pin receiving piece and is disengaged from the pressing force receiving portion of the pin holding member, the pin holding member slides in a direction to close the inlet of the bearing portion by elastic force, and the hinge pin and the pin The connection with the receiving piece is completed.
That is, by pushing the hinge pin of the front frame from the side of the outer frame into the bearing portion of the recess of the pin receiving mechanism (pin receiving piece), the connection between the hinge pin of the front frame and the pin receiving mechanism of the outer frame is automatically performed with one touch. To be done. For this reason, the connecting operation between the hinge pin of the front frame and the pin receiving mechanism of the outer frame is simplified.
Further, according to the present invention, the hinge pin is rotatably supported at the position of the bearing portion provided at the innermost part of the concave portion of the pin receiving piece, and the pin presser member closes the entrance of the shaft portion and disengages the hinge pin. It is intended to prevent it. That is, the pin pressing member is only for closing the inlet of the bearing portion, and does not have a hook function that is hung on the outer peripheral surface of the hinge pin as in the prior art. For this reason, the shape of the pin pressing member is not complicated, and the manufacture becomes easy. Further, since the shape of the pin presser member is not complicated, the structure for supporting the pin presser member so as to be slidable is also simplified. That is, the configuration of the pin receiving mechanism is simplified.

According to the second aspect of the present invention, the pin pressing member slides forward when opening the inlet of the bearing portion against the elastic force, and backward when the pin pressing member returns to the position where the inlet of the bearing portion is closed by the elastic force. It is characterized by sliding.
According to the invention of claim 3, the pin holding member is connected to the pin receiving piece through a connecting mechanism consisting of a guide bar and a long hole so that it can slide back and forth by the dimension of the long hole. A positioning opening is formed in the pin pressing member, and a positioning guide protrusion formed in the pin receiving piece extending in the front-rear direction is inserted into the positioning opening.
That is, since the pin holding member is connected to the pin receiving piece in a state where it can slide back and forth with the guide rod and the long hole, and the positioning opening and the guide projection, the structure of the connecting mechanism of both is simple. .

According to the invention of claim 4, the pin pressing member is provided with a lever portion for sliding the pin pressing member in a direction to open the entrance of the bearing portion of the pin receiving piece against the force of the elastic body. The lever portion is configured to be sandwiched between the front frame and the front surface of the outer frame when the pin holding member is in a position to close the inlet of the bearing portion and the front frame is closed. .
Thus, when the front frame is closed, the lever portion cannot be moved because the lever portion is sandwiched between the front frame and the front surface of the outer frame. For this reason, the pin pressing member does not move from the position where the inlet of the concave portion is blocked, and it is difficult to cause a problem that the hinge pin is detached from the concave portion of the pin receiving piece by an unauthorized operation.

  According to the present invention, not only the connecting operation between the hinge pin of the front frame and the pin receiving mechanism of the outer frame becomes simple, but also the configuration of the pin receiving mechanism becomes simple, thereby reducing the assembly man-hours. .

[Embodiment 1]
Hereinafter, the hinge device of the pachinko machine according to the first embodiment of the present invention will be described with reference to FIGS. Here, FIG. 1 is an exploded perspective view of the pin receiving mechanism of the hinge device according to the present embodiment as viewed from below, and FIG. 2 is a view of the pin receiving mechanism of the hinge device according to the present embodiment as viewed from diagonally upward or diagonally below. FIG. 3 to 5 are plan views showing a connecting procedure between the hinge pin and the pin receiving mechanism of the hinge device, and FIG. 6 is an overall perspective view of the front frame and the outer frame of the pachinko machine including the hinge device according to the present embodiment. is there.

<About the outline of pachinko machines>
As shown in FIG. 6, the pachinko machine includes an outer frame 10 that is formed in a substantially rectangular frame shape and serves as a main body case. The outer frame 10 includes an upper plate 10u, left and right side plates 10s, and a lower plate 10d. On the left side of the outer frame 10, a support frame 12 such as a game board (hereinafter referred to as a front frame 12) is attached in a door shape so as to be openable and closable via hinge devices 20 and 40 provided vertically. The front frame 12 is a frame to which main parts of a pachinko machine such as a game board and a control device (not shown) are attached. A glass frame is formed in a single-open shape on the front surface of the front frame 12 via a hinge mechanism (not shown). (Not shown) is attached. Further, a front plate (not shown) having a ball receiving tray or the like is attached to the lower side of the glass frame in a single-open shape.

<About the upper and lower hinge devices 20, 40>
As shown in FIG. 6, the lower hinge device 40 includes a hinge pin 42 erected on the support plate 10 p of the outer frame 10 and a pin hole 44 formed in the receiving plate 12 r of the front frame 12. Yes. The hinge pin 42 of the hinge device 40 and the pin hole 44 are connected such that when the front frame 12 is lifted and lowered, the hinge pin 42 of the support plate 10p of the outer frame 10 is passed through the pin hole 44 of the receiving plate 12r.
The upper hinge device 20 includes a hinge pin 22 erected on the upper plate 12 u of the front frame 12 and a pin receiving mechanism 25 fixed to the upper left corner of the outer frame 10. The hinge pin 22 of the hinge device 20 and the pin receiving mechanism 25 are connected by pushing the hinge pin 22 into the pin receiving mechanism 25 from the left side as will be described later in a state where the connection of the lower hinge device 40 is completed. Done automatically.
That is, the upper plate 12u of the front frame 12 corresponds to the pin side fixing member of the present invention.

<About the pin receiving mechanism 25 of the upper hinge device 20>
As shown in FIGS. 1 and 2, the pin receiving mechanism 25 constituting the upper hinge device 20 includes a fixing plate 26 fixed to the upper corner of the outer frame 10. The fixed plate 26 is a press-formed product of an iron plate, and is formed in an approximately L shape by an upper plate portion 27 and a side plate portion 28. The upper plate portion 27 of the fixing plate 26 is fixed to the upper surface of the outer frame 10 with screws or the like, and the side plate portion 28 is fixed to the outer surface of the outer frame 10 with screws or the like (see FIG. 6).
The upper plate portion 27 of the fixed plate 26 includes a contact portion 27s that makes surface contact with the upper surface of the outer frame 10 and a protruding portion 27t that protrudes forward from the outer frame 10 in a substantially horizontal state. The contact portion 27 s of the upper plate portion 27 is formed in a substantially square shape, and the front-rear width and the left-right width thereof are set to dimensions substantially equal to the front-rear width of the upper surface of the outer frame 10. The protruding portion 27t of the upper plate portion 27 is formed in a substantially rectangular shape that is long in the front-rear direction, and its left-right width is set to a value that is approximately half of the left-right width of the contact portion 27s.

From the front end to the right end of the protruding portion 27t of the upper plate portion 27, as shown in FIGS. 1 and 2, etc., a vertical plate portion 27k is provided that is bent at a right angle to the protruding portion 27t. A plate-shaped pin receiving piece 29 is provided at the lower end of the vertical plate portion 27k and is bent so as to face the protruding portion 27t of the upper plate portion 27.
The pin receiving piece 29 is formed in a shape substantially equal to the protruding portion 27 t of the upper plate portion 27.
As shown in FIGS. 1, 2 (B), 3, etc., the pin receiving piece 29 is notched with a passage-shaped recess 31 opened at the left end thereof. A bearing portion 32 is formed. The bearing portion 32 is a portion that supports the hinge pin 22 so as to be rotatable about its axis, and is formed in a substantially U-shaped plane by a semicircular portion 32j and an inlet portion 32e. The radial dimension of the semicircular part 32j of the bearing part 32 is set to be approximately equal to the radial dimension of the hinge pin 22, and the width dimension of the inlet part 32e of the bearing part 32 is set to be approximately equal to the outer diameter dimension of the hinge pin 22. ing.
The bearing portion 32 is formed at the center front portion of the pin receiving piece 29, and the recessed portion 31 is configured to smoothly guide the hinge pin 22 obliquely forward from the left end of the pin receiving piece 29 to the bearing portion 32 (FIG. 3). (See (A) etc.).

A pin pressing member 34 is mounted between the protruding portion 27 t of the upper plate portion 27 and the pin receiving piece 29 to prevent the hinge pin 22 fitted to the bearing portion 32 of the pin receiving piece 29 from coming off.
The pin pressing member 34 is a press-molded product. As shown in FIG. 1, the thickness of the pin pressing member 34 is substantially equal to the gap between the protruding portion 27 t of the upper plate portion 27 and the pin receiving piece 29. As described above, the peripheral edge of the pin pressing member 34 is partially bent with a constant width dimension W. A long hole 34h extending in the front-rear direction is formed in the center of the pin pressing member 34, and a guide bar 38 is passed through the long hole 34h (see FIG. 3A and the like). The upper and lower ends of the guide bar 38 are fixed to the protruding portion 27t of the upper plate portion 27 and the pin receiving piece 29, respectively. Therefore, the pin pressing member 34 can slide back and forth with respect to the pin receiving piece 29 by the length of the long hole 34h. Further, a part of the pin presser member 34 protrudes rearward from the pin receiving piece 29, and a lever portion 36 for manually sliding the pin presser member 34 forward at the rear end of the pin presser member 34 is at a right angle. It is bent and molded. A positioning opening 36 h is formed in the upper portion of the lever portion 36 of the pin pressing member 34. A guide protrusion 29x that protrudes rearward from the rear end portion of the pin receiving piece 29 is inserted into the positioning opening 36h of the pin pressing member 34 (see FIG. 2B). Accordingly, the pin pressing member 34 can slide back and forth along the guide protrusion 29x of the pin receiving piece 29.

As shown in FIGS. 1 and 3A, a spring receiver 34u is formed on the right side of the distal end of the pin pressing member 34, and the distal end of a coil spring 38b is hung on the spring receiver 34u. The other end of the coil spring 38b is hung on a spring receiver 29u (see FIG. 3A) formed at the rear end of the pin receiving piece 29. The coil spring 38b is biased so as to apply a backward pulling force to the pin pressing member 34 so that the pin pressing member 34 can be held at the retreat limit position.
Further, at the center of the tip end of the pin pressing member 34, as shown in FIGS. 1 and 3A, the inlet portion of the bearing portion 32 of the pin receiving piece 29 in a state where the pin pressing member 34 is in the retreat limit position. A bearing closing portion 34s that closes 32e is formed to protrude. As shown in FIG. 3 and the like, the bearing closing portion 34s is formed on the lower outer peripheral edge of the protruding portion formed in a flat sector shape. In a state where the bearing closing portion 34 s closes the inlet portion 32 e of the bearing portion 32, the bearing closing portion 34 s is substantially continuous with the semicircular portion 32 j of the bearing portion 32. As a result, the hinge pin 22 fitted to the bearing portion 32 of the pin receiving piece 29 is surrounded by the semicircular portion 32j of the bearing portion 32 and the bearing closing portion 34s of the pin pressing member 34 so as to be rotatable around the axis. Supported. In this state, the upper end of the hinge pin 22 enters the lower side of the protruding portion of the pin pressing member 34 formed in a flat sector shape.

  Further, in a state where the bearing closing portion 34s of the pin pressing member 34 closes the inlet portion 32e of the bearing portion 32, as shown in FIG. 3A, the bearing closing portion 34s and the bearing closing portion 34s are positioned on the left side of the bearing closing portion 34s. The left end 34r of the leading end protrudes from the front to the entrance portion of the bearing portion 32 of the pin receiving piece 29. For this reason, when the hinge pin 22 is pushed into the recess 31 from the left side in the process of fitting the hinge pin 22 to the bearing portion 32 of the pin receiving piece 29, the outer periphery of the hinge pin 22 is shown in FIG. The surface presses the left end portion 34r and the bearing closing portion 34s of the pin pressing member 34 from the rear. As a result, the pin pressing member 34 slides forward against the spring force of the coil spring 38 b so that the bearing closing portion 34 s of the pin pressing member 34 opens the inlet portion 32 e of the bearing portion 32 of the pin receiving piece 29. Become. When the hinge pin 22 is guided to the bearing portion 32 of the pin receiving piece 29 (fitted with the bearing portion 32) and the outer peripheral surface of the hinge pin 22 is disengaged from the left end portion 34r of the pin presser member 34, the pin presser is pressed. The member 34 is returned to the retreat limit position by the spring force of the coil spring 38b. Thereby, the bearing closing portion 34 s of the pin pressing member 34 closes the inlet portion 32 e of the bearing portion 32 of the pin receiving piece 29.

<About the connection operation | movement of the hinge apparatus 20 which concerns on this embodiment>
Next, the hinge pin 22 fixed to the upper corner of the front frame 12 and the pin receiving mechanism 25 fixed to the upper corner of the outer frame 10 are connected using the hinge device 20 of the pachinko machine according to the present embodiment. The procedure to do is demonstrated.
First, the front frame 12 is rotated in the opening direction with the pin hole 44 at the lower corner of the front frame 12 and the hinge pin 42 at the lower corner of the outer frame 10 being connected. At this time, in the pin receiving mechanism 25 of the outer frame 10, as shown in FIG. 3A, the pin pressing member 34 is retracted by the spring force of the coil spring 38 b, that is, the bearing closing portion 34 s is the pin receiving piece 29. It is hold | maintained in the position which plugs up the entrance part 32e of the bearing part 32 of this.
Next, as shown in FIG. 3B, the hinge pin 22 of the front frame 12 is pushed into the concave portion 31 of the pin receiving mechanism 25 of the outer frame 10 from the left side of the outer frame 10. Accordingly, the hinge pin 22 is guided to the recess 31 of the pin receiving piece 29 and guided to the inlet portion 32 e of the bearing portion 32. At this time, the outer peripheral surface of the hinge pin 22 presses the left end portion 34r of the pin pressing member 34 and the bearing closing portion 34s, so that the pin pressing member 34 is a spring of the coil spring 38b as shown in FIG. Slide forward against force. As a result, the bearing closing portion 34 s of the pin pressing member 34 opens the inlet portion 32 e of the bearing portion 32 of the pin receiving piece 29, and the hinge pin 22 is engaged with the bearing portion 32 of the pin receiving piece 29. When the hinge pin 22 is engaged with the bearing portion 32 of the pin receiving piece 29, the outer peripheral surface of the hinge pin 22 is disengaged from the left end portion 34r of the tip of the pin presser member 34, and the pin presser member 34 is retracted by the spring force of the coil spring 38b. Is returned to. As a result, as shown in FIG. 4B, the bearing closing portion 34 s of the pin pressing member 34 closes the inlet portion 32 e of the bearing portion 32 of the pin receiving piece 29, and the hinge pin 22 and the pin receiving mechanism 25 are connected. .
That is, the left end portion 34r and the bearing closing portion 34s of the pin pressing member 34 correspond to the pressing force receiving portion of the pin pressing member in the present invention.

When the hinge pin 22 and the pin receiving mechanism 25 are thus connected, the front frame 12 is closed as shown in FIG. Then, the lever portion 36 of the pin pressing member 34 is sandwiched between the front surface of the outer frame 10 and the front frame 12 in a state where the front frame 12 is completely closed.
Further, when the connection of the hinge device 20 is released, the lever portion 36 of the pin pressing member 34 is pulled toward the front side with the front frame 12 being opened. As described above, the lever portion 36 of the pin pressing member 34 is pulled toward the front side, so that the pin pressing member 34 slides forward against the spring force of the coil spring 38b, and the bearing portion 32 of the pin receiving piece 29 The inlet 32e is opened. As a result, the hinge pin 22 can be removed from the pin receiving mechanism 25.

<Advantages of Hinge Device 20>
According to the hinge device 20 according to the present embodiment, the recess 31 of the pin receiving mechanism 25 (pin receiving piece 29) is configured to smoothly guide the hinge pin 22 of the front frame 12 to the innermost bearing portion 32. In the process in which the hinge pin 22 is pushed into the bearing portion 32 of the recess 31, the hinge pin 22 presses the tip left side portion 34 r of the pin pressing member 34 and the bearing closing portion 34 s (pressing force receiving portion). As a result, the pin pressing member 34 slides in the direction (forward) to open the inlet portion 32e of the bearing portion 32 of the pin receiving piece 29 against the spring force of the coil spring 38b. When the hinge pin 22 is engaged with the bearing portion 32 of the pin receiving piece 29 and is disengaged from the left end portion 34r (pressing force receiving portion) of the pin pressing member 34, the pin pressing member 34 is caused by the spring force of the coil spring 38b. It slides in the direction (rearward) that closes the inlet 32e of the bearing 32. Thereby, the connection between the hinge pin 22 and the pin receiving piece 29 is completed.
That is, by pushing the hinge pin 22 of the front frame 12 from the left side of the outer frame 10 into the bearing portion 32 of the recess 31 of the pin receiving mechanism 25 (pin receiving piece 29), the hinge pin 22 of the front frame 12 and the pin of the outer frame 10 The connection with the receiving mechanism 25 is automatically performed with one touch. For this reason, the connecting operation between the hinge pin 22 of the front frame 12 and the pin receiving mechanism 25 of the outer frame 10 is simplified.

Further, the hinge pin 22 is rotatably supported at the position of the bearing portion 32 provided at the innermost part of the concave portion 31 of the pin receiving piece 29, and the pin pressing member 34 closes the inlet portion 32 e of the bearing portion 32 to close the hinge pin. 22 is prevented from coming off. That is, the pin pressing member 34 is only for closing the inlet portion 32e of the bearing portion 32, and does not have a hook function that is hung on the outer peripheral surface of the hinge pin 22 as in the prior art. For this reason, the shape of the pin presser member 34 is not complicated, and the manufacture becomes easy. Further, since the shape of the pin presser member 34 is not complicated, the structure for supporting the pin presser member 34 so as to be slidable is also simplified. That is, the configuration of the pin receiving mechanism 25 is also simplified. Thereby, the assembly man-hour of the pin receiving mechanism 25 can be reduced.
Further, since the pin holding member 34 is connected to the pin receiving piece 29 in a state where it can slide back and forth by the guide bar 38 and the long hole 34h, and the positioning opening 36h and the guide projection 29x, the connecting mechanism between them is provided. The configuration of is simplified.
Further, when the front frame 12 is closed, the lever portion 36 of the pin pressing member 34 is sandwiched between the front frame 12 and the front surface of the outer frame 10, and therefore the lever portion 36 cannot be moved. For this reason, the pin pressing member 34 does not move from the position where the inlet 32e of the bearing portion 32 is blocked, and it is difficult for a problem that the hinge pin 22 is detached from the bearing portion 32 of the pin receiving piece 29 by an unauthorized operation.

<Modification Example of Hinge Device 20 According to the Present Embodiment>
In the hinge device 20 according to the present embodiment, the pin pressing member 34 is slid back and forth with respect to the pin receiving piece 29 by inserting the guide protrusion 29x of the pin receiving piece 29 into the positioning opening 36h of the pin pressing member 34. Although an example of holding in a possible state has been shown, for example, the pin pressing member 34 can be held slidable back and forth with respect to the pin receiving piece 29 by a combination of a protrusion and a groove.
Further, an example in which a coil spring 38b is hung between the spring receiver 34u at the tip of the pin pressing member 34 and the spring receiver 29u at the rear end of the pin receiving piece 29, and the pin pressing member 34 is pulled and held to the retreat limit position. However, a configuration in which the spring is interposed between the tip of the pin pressing member 34 and the vertical plate portion 27k at the tip of the pin receiving piece 29 to press the pin pressing member 34 to the retreat limit position is also possible.

It is the disassembled perspective view which looked at the pin receiving mechanism of the hinge apparatus which concerns on Embodiment 1 of this invention from the downward direction. It is the perspective view (A figure) which looked at the pin receiving mechanism of the said hinge apparatus from diagonally upward, and the perspective view (B figure) seen from diagonally downward. It is a top view (A figure, B figure) showing the connection procedure of the hinge pin and pin receiving mechanism of the said hinge apparatus. It is a top view (A figure, B figure) showing the connection procedure of the hinge pin and pin receiving mechanism of the said hinge apparatus. It is a top view showing the connection procedure of the hinge pin and pin receiving mechanism of the said hinge apparatus. 1 is an overall perspective view of a front frame and an outer frame of a pachinko machine including a hinge device according to Embodiment 1 of the present invention. It is the perspective view (A figure) showing the connection operation | movement of the conventional hinge apparatus, and a top view (B figure, C figure).

Explanation of symbols

10 outer frame 12 front frame 12u upper plate (pin side fixing member)
22 Hinge pin 25 Pin receiving mechanism 29 Pin receiving piece 29x Guide protrusion 31 Recess 32 Bearing portion 32e Entrance portion 34 Pin pressing member 34s Bearing closing portion (pressing force receiving portion)
34r tip left side (pressing force receiving part)
34h Long hole 36 Lever part 36h Positioning opening 38 Guide rod

Claims (4)

A structure that is fixed to the upper corner of the door-shaped front frame and that is fixed to the upper corner of the outer frame that supports the front frame, and a pin-side fixing member having a hinge pin that serves as a rotation center of the front frame And a pin receiving mechanism that rotatably supports the hinge pin of the pin-side fixing member, and a hinge device of a pachinko machine,
The pin receiving mechanism is
Protruding to the front of the outer frame in a substantially horizontal state and having a recess configured to allow the hinge pin to be engaged from the side, the hinge pin can be rotated at the position of the bearing portion provided at the innermost portion of the recess A pin receiving piece to support
A pin holding member that is supported in a state in which it can slide back and forth with respect to the pin receiving piece, and is held at a position that closes an entrance of a bearing portion in the pin receiving piece with an elastic force;
The pin holding member is configured to receive the pressing force of the outer peripheral surface of the hinge pin that is about to be pushed into the bearing portion when the pin holding member is in a position to close the inlet of the bearing portion. A pressing force receiving portion,
The concave portion of the pin receiving piece is configured to smoothly guide the hinge pin to the bearing portion,
If the pressing force of the hinge pin is applied to the pressing force receiving portion of the pin pressing member in the process of fitting the hinge pin with the bearing portion, the pin pressing member resists the elastic force by the pressing force. When the hinge pin is engaged with the bearing portion and is removed from the pressing force receiving portion, the pin holding member slides in a direction to close the inlet of the bearing portion by the elastic force. A hinge device for a pachinko machine characterized by A hinge device for a pachinko machine according to claim 1,
A pachinko that slides forward when the pin presser member opens the entrance of the bearing portion against elastic force, and slides backward when the pin presser member returns to a position to close the entrance of the bearing portion by elastic force. Machine hinge device. A hinge device for a pachinko machine according to claim 1 or 2,
The pin holding member is connected to the pin receiving piece through a connecting mechanism consisting of a guide rod and a long hole so that it can slide back and forth by the dimension of the long hole.
Further, the pin holding member has a positioning opening, and a positioning guide protrusion formed in the pin receiving piece extending in the front-rear direction is inserted into the positioning opening. Machine hinge device. A hinge device for a pachinko machine according to claims 1 to 3,
The pin presser member is provided with a lever part for sliding the pin presser member in the direction to open the entrance of the bearing part of the pin receiving piece against the force of the elastic body,
When the pin holding member is in a position to close the entrance of the bearing portion and the front frame is closed, the lever portion is configured to be sandwiched between the front frame and the front surface of the outer frame. A hinge device for a pachinko machine characterized by the above.

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