JP2010213775A - Pinball game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid complication of a structure of an opening detection switch for detecting opening of a front frame or a middle frame of a pinball game machine, by suppressing the number of the components of the switch. <P>SOLUTION: When a front door frame 51 is opened while the middle frame 58 is closed, a detector 22 is displaced. When the middle frame 58 is opened, the detector 22 is displaced as well. Thus, it is detected on the basis of on/off of an opening detection switch that either (or both) the front door frame 51 or (or and) the middle frame 58 is (or are) opened. Since it is enough that a case 21 of the opening detection switch 20 in a form in which the detector 22 is reciprocally displaced between a projection position and a press position is attached to the middle frame 58 in an advanceable/retractable manner only in the back and forth direction of the middle frame 58, so that the number of components is small and the structure is not complicated. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention belongs to the technical field of ball game machines.

  In a ball game machine such as a pachinko machine, a game is played by the behavior of a game ball in a game area formed between a game board and a glass plate arranged in front of the game board. In the case of a pachinko machine, if a game ball enters a prize opening arranged in the game area, the prize ball is paid out. Therefore, illegal acts (so-called goto) that illegally open the front frame holding the glass plate for covering the front of the game board or sometimes open the middle frame to which the front frame is attached illegally. Sometimes done. As a countermeasure (not only for that purpose), an open detection switch for detecting that the front frame is opened or the middle frame is opened is provided.

JP 2008-86602 A

  In the case of Patent Document 1, an open detection switch is held by a switch holder attached to an inner frame so that one end portion thereof is rotatable about a fixed shaft, and the switch holder is attached to a pachinko by a spring attached to the fixed shaft. An elastic force is applied so as to rotate to the rear side (outer frame side) of the machine, and a lever for pushing the push button of the open detection switch is provided at the end opposite to the fixed shaft of the open detection switch. Yes. That is, the number of parts is large and the configuration is complicated.

The bullet ball gaming machine according to claim 1, wherein an outer frame fixed to the gaming machine installation island, a middle frame that is assembled to the outer frame so as to be openable and closable in a door shape, and holds a game board, A front frame assembled to the middle frame so that it can be opened and closed like a door on the front side of the held game board, and an open detection for detecting that the front frame is opened or the middle frame is opened In a ball game machine equipped with a switch,
The open detection switch is
A box-shaped case,
A detector that reciprocates between a protruding position with a relatively large protruding amount from the front surface of the case and a pushing position with a smaller protruding amount than the protruding position;
An internal spring disposed in the case for biasing the detector from the push-in position toward the protruding position;
It is arranged in the case, and includes a contact point that changes between on and off when the detector is in the protruding position and when it is in the pushing position,
The open detection switch is attached to the middle frame so that the case can be moved forward and backward only in the front-rear direction of the middle frame in a posture in which the detector faces the front of the middle frame.
When the middle frame is closed with respect to the outer frame, the case is advanced by being pressed by the outer frame,
When the front frame is closed with respect to the middle frame in a state where the case is advanced, the detector is pressed by the front frame and displaced from the protruding position to the pushing position,
When the pressure on the detector by the front frame is released in a state where the case is moved forward, the detector is displaced from the push-in position to the protruding position,
When the middle frame is opened while the front frame is closed with respect to the middle frame, the case is retracted and the detector is displaced from the push-in position to the projecting position.

  The open detection switch used in the invention of claim 1 includes a box-shaped case, and a contact and an internal spring are arranged in the case. The detector is reciprocated between a protruding position where the amount of protrusion from the front surface of the case is relatively large and a pushing position where the amount of protrusion is smaller than that. Since the internal spring urges the detector from the push-in position toward the protruding position, the detector is brought to the protruding position unless an external force acts on the detector. If an external force is applied to the detector and the detector is displaced from the protruding position to the pushed-in position against the internal spring, the contact changes from on to off (or from off to on).

  The open detection switch is set so that the detector faces the front of the middle frame, and the case is attached to the middle frame so that the case can be moved forward and backward only in the front and rear direction of the middle frame, and the middle frame is closed with respect to the outer frame. The case is advanced by being pressed by the outer frame.

  When the front frame is closed with respect to the middle frame in such a state that the case is advanced by the pressure by the outer frame, the detector is pressed by the front frame and displaced from the protruding position to the pushed position, and from that state the front frame When is released and the pressure on the detector by the front frame is released, the detector is displaced from the pushing position to the protruding position. Therefore, based on whether the contact is on or off, it is possible to detect the opening of the front frame when the middle frame is closed with respect to the outer frame.

  On the other hand, when the middle frame is released while the front frame is closed with respect to the middle frame, the pressing by the outer frame is released. Then, the force that the internal spring projects and displaces the detector to the protruding position acts as a force that separates the front frame and the case, and the case moves backward to displace the detector from the pushing position to the protruding position. Therefore, in this case, the opening of the middle frame can be detected by turning the contacts on and off.

  However, the contact ON / OFF itself does not change when the front frame is opened or when the middle frame is opened, so that either or both of the front frame and the middle frame are opened. Can only be detected, and it is not possible to specify whether it is “open front frame” or “open middle frame”. However, if it is possible to detect the opening of the front frame or the middle frame, it is sufficiently effective against a goto action that opens these fraudulently.

  The contact ON / OFF switching may be configured so that the detector is switched when it is in the protruding position, or may be switched when it is in the same pushing position, but the configuration that is switched at an appropriate position between the protruding position and the pressing position. Is preferred.

  According to the first aspect of the present invention, an open detection switch having a configuration in which the detector is reciprocally displaced between the protruding position and the pushing position is used, and the case of the switch can be moved forward and backward only in the front-rear direction of the inner frame. Since it only needs to be attached to the frame, the number of parts is small, and the configuration is not complicated.

  By the way, as the driving force for retracting the case when the middle frame is opened while the front frame is closed with respect to the middle frame, as described above, the force by which the internal spring projects and displaces the detector to the protruding position. However, the urging force of the internal spring may not be sufficient.

  Therefore, the invention according to claim 2 employs a configuration including a backward biasing spring for biasing the case attached to the inner frame in the backward direction. By providing the reverse biasing spring, when the middle frame is opened, the case can be reliably retracted regardless of whether the front frame is closed with respect to the middle frame.

  Also, since it is common to purchase and use so-called mass-produced products for the open detection switch, if the purchased product is used as it is, “the case is attached to the middle frame so that it can be moved forward and backward only in the front-rear direction of the middle frame”. Can be difficult.

  However, as described in claim 3, the case is attached to the middle frame via a support member that holds the case and moves in the front-rear direction of the middle frame together with the case. A pressed portion that is pressed by the outer frame when the middle frame is closed with respect to the outer frame is provided, and the backward biasing spring biases the support member in the backward direction. In this case, the above-described problem relating to the attachment of the open detection switch can be avoided. In addition, the pressing by the outer frame can be reliably received by providing the pressed portion.

The perspective view of the (a) front side and (b) back side of the pachinko machine of an Example. The front view of the principal part of the pachinko machine of an Example. The AA sectional view of the pachinko machine of an example in the state where (a) the front frame and the middle frame were closed, (b) the state where the front frame was opened, and (c) the state where the middle frame was opened.

The overall structure of the pachinko machine 50 (corresponding to a ball game machine) of this embodiment is as shown in FIG.
The outer frame 1 constitutes the outer shell of the pachinko machine 50, and is fixed to the gaming machine installation island when the pachinko machine 50 is installed in the game shop.

The outer frame 1 includes a left vertical member 2 and a right vertical member 3 made of aluminum. The left vertical member 2 and the right vertical member 3 are arranged facing each other.
The left vertical member 2 is a vertically long member, and an upper hinge holding portion 5 is connected to the upper end portion of the left vertical member 2. The tip piece 5a of the upper hinge holding part 5 projects forward of the outer frame 1, and the tip piece 5a is provided with an upper hinge bearing (opening is not shown) that opens downward. A lower hinge holding part 7 is provided at a position about 1/5 of the entire length from the lower end of the left vertical member 2, and a lower hinge bearing is formed in the lower hinge holding part 7.

The outer frame 1 includes an upper horizontal member 14 that connects the upper ends of the left vertical member 2 and the right vertical member 3, and a lower horizontal member 15 that connects the lower ends of the left vertical member 2 and the right vertical member 3. I have.
The upper horizontal member 14 is composed of a portion that becomes the ceiling 16 of the outer frame 1 and a ball tank 17. The ceiling 16 is substantially plate-shaped as a whole. The left end portion of the upper horizontal member 14 is connected to the upper end portion of the left vertical member 2, and the right end portion is connected to the upper end portion of the right vertical member 3.

  The lower horizontal member 15 that connects the lower ends of the left vertical member 2 and the right vertical member 3 includes a housing portion 35 (see FIG. 2) of a hard synthetic resin (for example, ABS) and a decorative body 44. The right end portion of the housing portion 35 is connected to the lower end portion of the right vertical member 3, and the left end portion is connected to the lower end portion of the left vertical member 2. The decorative body 44 is attached to the front surface portion of the housing portion 35.

  A front door frame 51 corresponding to the front frame is disposed on the front surface of the pachinko machine 50. Specifically, the middle frame 58 is attached to the outer frame 1, and the front door frame 51 is attached to the outer frame 1 via the middle frame 58.

  Specifically, the middle frame 58 is first coupled to the upper hinge holding part 5 (upper hinge bearing) and the lower hinge holding part 7 (lower hinge bearing) of the outer frame 1 by upper and lower hinge shafts, respectively. With respect to the upper and lower hinge shafts, the outer frame 1, that is, the main body of the pachinko machine 50 can be opened and closed like a door.

  The upper and lower hinge shafts provided in the middle frame 58 are steel pipes, and their inner holes function as hinge bearings for the front door frame 51. That is, the front door frame 51 is connected to the outer frame 1 by inserting upper and lower hinge shafts (not shown) through the hinge shafts of the middle frame 58 described above, and the front door frame 51 is connected to the middle frame 58 around the upper and lower hinge shafts. On the other hand, it can be opened and closed like a door.

  The front door frame 51 is provided with a window 52 for facing the game board (shown in FIG. 1 is not equipped with a game board), and a glass plate for closing the window 52 is provided. It is mounted behind the window 52.

An illumination part 53 is provided above the window 52. An upper plate 54 and a lower plate 55 are arranged below the window 52 so as to overlap each other.
The part from these electrical decoration parts 53 to the lower plate | plate 55 is the front door frame 51, and can be opened and closed as mentioned above.

  A firing handle 56 is disposed on the right side of the lower plate 55. The support base 57 of the firing handle 56 is attached to the middle frame 58 instead of the front door frame 51. A key hole 59 for operating the lock mechanism is also attached to the front surface of the middle frame 58.

  The middle frame 58 is composed of two vertical sides 61 made of aluminum and an upper horizontal portion 62 and a lower horizontal portion 63 made of synthetic resin. The upper surface of the lower horizontal portion 63 supports the lower end surface of the game board. The game board is held such that both the left and right sides of the game board are sandwiched between the vertical sides 61.

  As described above, the middle frame 58 is connected to the upper hinge holding portion 5 and the lower hinge holding portion 7 of the outer frame 1 by the upper and lower hinge shafts, respectively, and is a door to the outer frame 1, that is, the main body of the pachinko machine 50. Can be opened and closed.

As shown in FIGS. 2 and 3, a switch opening 10 is provided in the lower lateral portion 63 of the middle frame 58.
As shown in FIG. 3, the switch support member 11 is attached to the lower horizontal portion 63 (the middle frame 58) behind the opening 10. The switch support member 11 is not fixed to the lower horizontal portion 63 (inner frame 58), and can move forward and backward within a range set only in the front-rear direction of the lower horizontal portion 63 (inner frame 58).

  A retreating biasing spring (not shown) is attached to the lower horizontal portion 63 (inner frame 58), and the biasing force by the retreating biasing spring biases the switch support member 11 in the retreating direction. . Therefore, in a state where only the urging force by the backward urging spring is applied to the switch support member 11, the switch support member 11 is retracted to the retreat limit position shown in FIG.

The switch support member 11 is a hollow member, and a tongue piece 12 (corresponding to a pressed portion) is erected on the outer peripheral surface.
An open detection switch 20 is housed inside the switch support member 11.

  The open detection switch 20 has a box-shaped case 21, a protruding position where the protruding amount from the front surface of the case 21 is relatively large (the position shown in FIGS. 3B and 3C), and a protruding amount smaller than that. And a detecting element 22 that reciprocally moves to the pushing position (the position shown in FIG. 3A). In the open detection switch 20, the case 21 is attached to the switch support member 11 with the detector 22 facing the front of the lower horizontal portion 63 (the middle frame 58), and the lower horizontal portion 63 (the middle frame) together with the switch support member 11 The frame 58) can be moved forward and backward.

  Although the detailed structure is not shown, the open detection switch 20 includes an internal spring (not shown) that is arranged in the case 21 and biases the detector 22 from the pushing position toward the protruding position, A contact (not shown) that is arranged in the case 21 and changes on and off when the detector 22 is in the protruding position and when it is in the pushing position is provided.

Next, the operation of the open detection switch 20 will be described.
First, when the inner frame 58 is closed with respect to the outer frame 1, that is, the main body of the pachinko machine 50, as shown in FIGS. 3 (a) and 3 (b), the pressing provided on the casing 35 (outer frame 1). The portion 23 presses the tongue piece 12 of the switch support member 11 to advance the switch support member 11 (open detection switch 20) against the biasing force of the backward biasing spring.

  When the front door frame 51 is closed with respect to the middle frame 58 in a state in which the switch support member 11 (open detection switch 20) is moved forward, as shown in FIG. Contacts the detector 22 and displaces the detector 22 from the protruding position to the pushing position. Further, if the front door frame 51 is opened from the state shown in FIG. 3A, the pushing by the front door frame 51 is released, so that the detector 22 is displaced from the pushing position to the protruding position (FIG. 3 ( b)).

  On the other hand, when the middle frame 58 is released, the pressing to the tongue piece 12 by the pressing portion 23 is released, so that the switch support member 11 (opening detection switch 20) is moved backward by the biasing force of the backward biasing spring. Then, as shown in FIG. 3C, the detector 22 is displaced from the push-in position to the projecting position in accordance with the backward movement of the switch support member 11 (open detection switch 20).

  Thus, when the middle frame 58 is closed with respect to the outer frame 1, that is, the main body of the pachinko machine 50 (see FIGS. 3A and 3B), the front door frame 51 is closed or opened. The detector 22 is displaced between the push-in position and the protruding position depending on whether it has been done. That is, when the front door frame 51 is opened, the on / off state of the open detection switch 20 changes.

  Also, when the middle frame 58 is opened, the detector 22 is displaced from the push-in position to the protruding position, so that the opening detection switch 20 is turned on and off in the same manner as when the front door frame 51 is opened.

  Therefore, it is possible to detect that one (or both) of the front door frame 51 and the middle frame 58 is opened based on whether the open detection switch 20 is on or off. However, it cannot be determined whether the on / off change of the open detection switch 20 (its contact) is caused by the opening of the front door frame 51 or the opening of the middle frame 58. However, if it is possible to detect the opening of the front door frame 51 or the middle frame 58, it is sufficiently effective against a go-to action that opens them illegally.

  The pachinko machine 50 according to the present embodiment uses the opening detection switch 20 configured to reciprocate the detector 22 between the protruding position and the pushing position, and advances the case 21 of the switch 20 only in the front-rear direction of the middle frame 58. Since it only needs to be attached to the inner frame 58 so as to be retractable, the number of parts is small, and the configuration is not complicated.

  Further, since the switch support member 11 attached to the middle frame 58, that is, the case 21 is provided with a backward biasing spring that biases the case 21 in the backward direction, the front door frame is opened when the middle frame 58 is opened. Regardless of whether 51 is closed with respect to the middle frame 58, the switch support member 11 (case 21) can be reliably retracted.

  However, the case 21 is attached to the middle frame 58 via the switch support member 11 that holds the case 21 and moves together with the case 21 in the front-rear direction of the middle frame 58, and the middle frame 58 is outside the switch support member 11. A tongue 12 is provided that is pressed by the outer frame 1 when it is closed with respect to the frame 1, and the backward biasing spring is configured to bias the switch support member 11 in the backward direction. It is easy to attach the open detection switch 20 to the middle frame 58 so as to be able to move forward and backward only in the front-rear direction of the middle frame 58.

1 ... Outer frame,
10 ... Opening,
11: Switch support member,
12 ... tongue,
20 ... Open detection switch,
21 ... Case,
22: Detector,
23 ... Pressing part,
50 ... Pachinko machines (ball game machines),
51 ... front door frame (front frame),
52 ... window,
58 ... middle frame.

Claims (3)

An outer frame fixed to the gaming machine installation island, a middle frame that is assembled to the outer frame so as to be openable and closable in a door shape, and a door on the front side of the gaming board held by the middle frame In a ball game machine comprising a front frame assembled to the middle frame so as to be openable and closable, and an opening detection switch for detecting that the front frame is opened or the middle frame is opened,
The open detection switch is
A box-shaped case,
A detector that reciprocates between a protruding position with a relatively large protruding amount from the front surface of the case and a pushing position with a smaller protruding amount than the protruding position;
An internal spring disposed in the case for biasing the detector from the push-in position toward the protruding position;
It is arranged in the case, and includes a contact point that changes between on and off when the detector is in the protruding position and when it is in the pushing position,
The open detection switch is attached to the middle frame so that the case can be moved forward and backward only in the front-rear direction of the middle frame in a posture in which the detector faces the front of the middle frame.
When the middle frame is closed with respect to the outer frame, the case is advanced by being pressed by the outer frame,
When the front frame is closed with respect to the middle frame in a state where the case is advanced, the detector is pressed by the front frame and displaced from the protruding position to the pushing position,
When the pressure on the detector by the front frame is released in a state where the case is moved forward, the detector is displaced from the push-in position to the protruding position,
If the middle frame is opened while the front frame is closed with respect to the middle frame, the case is retracted and the detector is displaced from the pushed-in position to the projecting position. Ball game machine.   2. The bullet ball game machine according to claim 1, further comprising a backward biasing spring that biases the case attached to the middle frame in a backward direction. The case is attached to the middle frame via a support member that holds the case and moves with the case in the front-rear direction of the middle frame,
The support member is provided with a pressed portion that is pressed by the outer frame when the middle frame is closed with respect to the outer frame.
3. The ball game machine according to claim 2, wherein the backward biasing spring biases the support member in the backward direction.

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