JP5158482B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine capable of opening and closing a main frame provided with a game board with respect to a fixed frame.

  In a pachinko machine that is a typical game machine, various necessary control devices and game ball processing mechanisms are mounted on the front side of the opening of a vertical rectangular outer frame fixed to an installation base installed in a game store or the like. In addition, the game board is detachably installed so as to detachably attach the middle frame to the middle frame and detachably attach to the middle frame. A front frame assembled with a glass plate that protects the game board from see-through is assembled in a single unit by assembling the front frame so that it can be opened and closed (side-opened) and detachable. That is, in this type of pachinko machine, most of the components constituting the pachinko machine are arranged in the middle frame, and the middle frame is a heavy weight.

In the pachinko machine described above, since the weight of the middle frame increases, when the middle frame is opened, the opened end side of the middle frame is inclined so as to hang down due to its own weight. If the open end side is lowered at the time of opening, when the middle frame is closed, the lower end of the middle frame comes into contact with the front surface of the lower frame member of the outer frame, making it difficult to close the middle frame. . As a technique for solving such a malfunction of the opening / closing operation due to the inclination of the middle frame, as disclosed in, for example, Patent Document 1 or Patent Document 2, to the hinge part that connects the outer frame and the middle frame so as to be opened and closed, By forming a bulging part that protrudes upward, the middle frame rides on the bulging part at the time of closing and corrects the inclination of the middle frame, so that the lower frame member front surface of the outer frame and the lower end of the middle frame Configurations that avoid contact are known. Further, in Patent Document 3, the upper surface of the lower frame member in the outer frame is inclined forward and downward, and the lower frame member is prevented from coming into contact with the front surface of the lower frame member, thereby smoothly opening and closing the middle frame. I'm trying to get you done.
JP 2002-121957 A JP 2003-190550 A JP 2005-131332 A

  However, in the configuration in which the bulging portion is formed in the hinge part as in Patent Document 1 or 2 described above, the load on the middle frame at the time of opening and closing is concentrated on the bulging portion. This can cause scratches and scrapes in the middle frame and the bulging portion. If the middle frame or the bulging portion is scratched or scraped, the middle frame cannot be properly tilted and the lower end of the middle frame cannot be prevented from contacting the front surface of the lower frame member of the outer frame. There's a problem. In particular, since the middle frame is only supported (lifted) by the bulging part formed on the hinge part, the stress applied to the middle frame and the bulging part is increased by the lever principle, and the middle frame and the bulging part are damaged. It tends to occur and scrapes, resulting in poor durability. On the other hand, as in Patent Document 3, in the configuration in which the upper surface of the lower frame member in the outer frame is processed to be inclined, it is impossible to prevent the middle frame from sagging when the middle frame is opened and closed. The corner on the side comes into contact with the upper surface of the lower frame member. For this reason, it becomes a cause which a damage | wound and scraping generate | occur | produces in a contact location, and the fault which the open end part side of an inner frame falls and cannot be lifted appropriately over time is pointed out by abrasion of a lower frame member.

  Therefore, an object of the present invention is to provide a gaming machine that can smoothly open and close the main body frame and can improve durability against the opening and closing operation of the main body frame.

In order to overcome the above-mentioned problems and achieve the intended purpose, a gaming machine according to claim 1 of the present application is
A fixed frame (11) fixed to an installation frame base, a main body frame (12) pivotally supported via hinge fittings (22, 23, 100, 110) with respect to the fixed frame (11), and the main body In a gaming machine comprising a gaming board (13) that is detachably arranged with respect to the frame (12) and forms a gaming area (13a) through which a gaming ball can flow down,
The lower frame member (40) of the fixed frame (11) is provided so as to protrude upward from the hinge metal fittings (22, 23, 100, 110), and is inclined upward toward the rear to close the main body frame (12). A first inclined guide portion (50) that sometimes allows the lower end of the body frame (12) to ride;
The lower frame member (40) of the fixed frame (11) is provided at a position away from the first inclined guide portion (50), and is inclined upward toward the rear to close the main body frame (12). A second inclined guide part (56) on which the lower end part of the main body frame (12) can sometimes ride,
The gist is that the first inclined guide portion (50) is positioned forward of the second inclined guide portion (56).

  Thus, when the main body frame is closed, the lower end portion on the hinge bracket side of the main body frame rides on the first inclined guide portion and is lifted, and the lower end portion on the open end side of the main body frame is the second inclined guide portion. Ride on and lift. That is, by closing the main body frame, the lower end of the main body frame on the hinge bracket side and the lower end on the open end side are lifted to correct the tilt of the main body frame. Can be prevented from touching. In addition, since the first tilt guide portion is arranged in front of the second tilt guide portion, when the main body frame is closed, the lower end portion on the hinge bracket side of the main body frame rides on the first tilt guide portion. Since the lower end portion on the open end side rides on the second inclined guide portion, the opening / closing operation of the main body frame can be performed smoothly. Furthermore, since the hinge bracket side and the open end side lower end of the main body frame ride on the first and second inclined guide portions, the load on the main body frame can be dispersed and the durability against the opening and closing operation of the main body frame is improved. obtain.

In order to overcome the above-mentioned problems and achieve an intended purpose, a gaming machine according to claim 2 is provided:
A fixed frame (11) fixed to an installation frame base, a main body frame (12) pivotally supported via hinge fittings (22, 23, 100, 110) with respect to the fixed frame (11), and the main body In a gaming machine comprising a gaming board (13) that is detachably arranged with respect to the frame (12) and forms a gaming area (13a) through which a gaming ball can flow down,
Provided on the hinge metal fittings (22, 23, 100, 110) in the lower frame member (40) of the fixed frame (11), and tilts upward toward the rear, and when the main body frame (12) is closed, the main body frame (12) A first inclined guide portion (50) on which the lower end of the vehicle can ride,
The lower frame member (40) of the fixed frame (11) is provided at a position away from the first inclined guide portion (50), and is inclined upward toward the rear to close the main body frame (12). A second inclined guide part (56) that sometimes allows the lower end part of the body frame (12) to ride,
The lower frame member (40) of the fixed frame (11) is provided between the first inclined guide portion (50) and the second inclined guide portion (56), and is inclined upward toward the rear. A third inclined guide portion (65) on which a lower end portion of the main body frame (12) can ride when the main body frame (12) is closed;
The first inclined guide portion (50) is configured to be positioned forward from the second inclined guide portion (56), and
Each of the first to third inclined guide portions (50, 56, 65) is configured such that when the main body frame (12) is closed, the lower end portion of the main body frame (12) is the first inclined guide portion first. The lower end portion of the main body frame (12) contacts the third inclined guide portion (65) in the process of coming into contact with the first inclined guide portion (50) and the third inclined guide portion. (65) is configured so that the lower end portion of the main body frame (12) contacts the second inclined guide portion (56) in the process of riding on (65),
The second inclined guide portion (56) and the third inclined guide portion (65) are inclined upward toward the rear, and the lower end portion of the main body frame (12) contacts when the main body frame (12) is closed. And an inclined surface portion (60, 66) that rides on and a support surface portion (62, 67) that supports the lower end portion of the main body frame (12) connected to the inclined rear end of the inclined surface portion (60, 66). When the main body frame (12) is closed, the lower end of the main body frame (12) is held by the support surface portions (62, 67) of the second inclined guide portion (56) and the third inclined guide portion (65). The gist is to be configured to support.

Thus, when the main body frame is closed, the lower end portion on the hinge bracket side of the main body frame rides on the first inclined guide portion and is lifted, and the lower end portion on the open end side of the main body frame is the second inclined guide portion. Ride on and lift. That is, by closing the main body frame, the lower end of the main body frame on the hinge bracket side and the lower end on the open end side are lifted to correct the tilt of the main body frame. Can be prevented from touching. In addition, since the first tilt guide portion is arranged in front of the second tilt guide portion, when the main body frame is closed, the lower end portion on the hinge bracket side of the main body frame rides on the first tilt guide portion. Since the lower end portion on the open end side rides on the second inclined guide portion, the opening / closing operation of the main body frame can be performed smoothly. Furthermore, since the hinge bracket side and the open end side lower end of the main body frame ride on the first and second inclined guide portions, the load on the main body frame can be dispersed and the durability against the opening and closing operation of the main body frame is improved. obtain.
Further , by providing the third tilt guide portion between the first tilt guide portion and the second tilt guide portion, the lower end portion of the main body frame is moved from the first to the third with the opening and closing of the main body frame. It gradually lifts at the tilt guide. Therefore, the body frame can be closed more smoothly, the load applied to each of the first to third inclined guide portions can be reduced, and the durability against the opening / closing operation of the body frame can be improved. Moreover, in the state which closed the main body frame, since the lower end part of a main body frame can be supported by the support surface part provided in the 2nd inclination guide part and the 3rd inclination guide part, a load is disperse | distributed and a main body frame is supported. be able to.

In the gaming machine according to claim 3, the lower frame member (40) of the fixed frame (11) is provided with an installation portion (46) projecting forward at the upper part on the hinge bracket side,
The first inclined guide portion (50) has a flat plate portion (51) that contacts the installation portion (46), protrudes upward from the flat plate portion (51), and inclines upward toward the rear, and the main body frame A projecting portion (52) formed with an inclined surface portion (52a) on which the lower end portion of the main body frame (12) can ride upon closing (12),
In the hinge bracket (22, 23, 100, 110), the fixed frame side bracket (110) disposed on the fixed frame (11) includes a main body of the hinge bracket (22, 23, 100, 110) disposed on the body frame (12). A through hole (112b) into which the support shaft (110a) for supporting the side metal fitting (23) and the protrusion (52) of the first inclined guide part (50) can be inserted is provided, and the protrusion (52) Is inserted between the through hole (112b) and the first inclined guide part (50) is sandwiched between the installation part (46) and the fixed frame side metal fitting (110), and the fixed frame side metal fitting (110 ) Is fixed to the installation part (46) .

In this way, by fixing the fixed frame side metal fitting to the installation part with the first inclined guide part sandwiched between the installation part of the lower frame member and the fixed frame side metal fitting of the hinge metal fitting, 1 inclination guide part can be attached easily. In addition, since the protruding portion of the first inclined guide portion faces the opening of the fixed frame side metal fitting, when the main body frame comes into contact with the first inclined guide portion, the first inclined guide portion is detached. Absent.

In order to overcome the above-mentioned problems and achieve the intended purpose, a gaming machine according to claim 4 is:
A fixed frame (11) fixed to an installation frame base, a main body frame (12) pivotally supported via hinge fittings (22, 23, 100, 110) with respect to the fixed frame (11), and the main body In a gaming machine comprising a gaming board (13) that is detachably arranged with respect to the frame (12) and forms a gaming area (13a) through which a gaming ball can flow down,
The lower frame member (40) of the fixed frame (11) is provided so as to protrude upward from the hinge metal fittings (22, 23, 100, 110), and is inclined upward toward the rear to close the main body frame (12). A first inclined guide portion (50) that sometimes allows the lower end of the body frame (12) to ride;
The lower frame member (40) of the fixed frame (11) is provided at a position away from the first inclined guide portion (50), and is inclined upward toward the rear to close the main body frame (12). A second inclined guide part (56) on which the lower end part of the main body frame (12) can sometimes ride,
The first inclined guide portion (50) is configured to be positioned forward from the second inclined guide portion (56), and
On the lower frame member (40) of the fixed frame (11), an installation part (46) protruding forward is formed on the upper side of the hinge bracket,
The first inclined guide portion (50) has a flat plate portion (51) that contacts the installation portion (46), protrudes upward from the flat plate portion (51), and inclines upward toward the rear, and the main body frame A projecting portion (52) formed with an inclined surface portion (52a) on which the lower end portion of the main body frame (12) can ride upon closing (12),
In the hinge bracket (22, 23, 100, 110), the fixed frame side bracket (110) disposed on the fixed frame (11) includes a main body of the hinge bracket (22, 23, 100, 110) disposed on the body frame (12). A through hole (112b) into which the support shaft (110a) for supporting the side metal fitting (23) and the protrusion (52) of the first inclined guide part (50) can be inserted is provided, and the protrusion (52) Is inserted between the through hole (112b) and the first inclined guide part (50) is sandwiched between the installation part (46) and the fixed frame side metal fitting (110), and the fixed frame side metal fitting (110 ) Is fixed to the installation part (46).
Thus, when the main body frame is closed, the lower end portion on the hinge bracket side of the main body frame rides on the first inclined guide portion and is lifted, and the lower end portion on the open end side of the main body frame is the second inclined guide portion. Ride on and lift. That is, by closing the main body frame, the lower end of the main body frame on the hinge bracket side and the lower end on the open end side are lifted to correct the tilt of the main body frame. Can be prevented from touching. In addition, since the first tilt guide portion is arranged in front of the second tilt guide portion, when the main body frame is closed, the lower end portion on the hinge bracket side of the main body frame rides on the first tilt guide portion. Since the lower end portion on the open end side rides on the second inclined guide portion, the opening / closing operation of the main body frame can be performed smoothly. Furthermore, since the hinge bracket side and the open end side lower end of the main body frame ride on the first and second inclined guide portions, the load on the main body frame can be dispersed and the durability against the opening and closing operation of the main body frame is improved. obtain.
Further, by fixing the fixed frame side metal fitting to the installation section with the first inclined guide part sandwiched between the installation part of the lower frame member and the fixed frame side metal fitting of the hinge metal fitting, The inclined guide portion can be easily attached. In addition, since the protruding portion of the first inclined guide portion faces the opening of the fixed frame side metal fitting, when the main body frame comes into contact with the first inclined guide portion, the first inclined guide portion is detached. Absent.

  In the gaming machine according to claim 5, the first inclination guide portion (50) is arranged such that the first inclination guide portion (50) is in contact with the lower end portion of the main body frame (12) when the main body frame (12) is closed. The gist is that the inclined surface portion (52a) of the guide portion (50) and the contact portion of the main body frame (12) are formed in parallel.
  As described above, when the main body frame is in contact with the first inclined guide portion when the main body frame is closed, the inclined surface portion of the first inclined guide portion and the contact portion of the main body frame are formed in parallel. By doing so, the lower end part of a main body frame can be lifted smoothly.

  That is, according to the gaming machine according to the present invention, the main body frame can be smoothly opened and closed with respect to the fixed frame, and the durability of the fixed frame with respect to the main body frame can be improved.

  Next, the gaming machine according to the present invention will be described in detail below with reference to the accompanying drawings by way of preferred embodiments. In the embodiment, a pachinko machine that plays a game using a pachinko ball as a game ball will be described as an example. In the following description, “front”, “rear”, “left”, and “right” mean that the pachinko machine is viewed from the front side (player side) as shown in FIG. 1 unless otherwise specified. It shall be designated by state.

  As shown in FIG. 1 or FIG. 2, the pachinko machine 10 according to the embodiment is provided with a game board 13 on the front side of the opening of an outer frame (fixed frame) 11 that is formed in a rectangular frame shape and forms an outer shell. A vertical rectangular middle frame (main body frame) 12 is assembled so as to be openable and detachable. A front frame 14 provided with a glass plate 14a for seeing and protecting the game board 13 (see FIG. 2) is assembled on the front side of the middle frame 12 so as to be openable and closable, and a pachinko ball is stored below the front frame 14. The lower ball tray 16 is assembled so that it can be opened and closed. An upper ball tray 15 for storing pachinko balls is integrally assembled at a lower position of the front frame 14 and is configured to open and close the upper ball tray 15 in accordance with opening and closing of the front frame 14. . Further, a handle member 17 that can be rotated is arranged on the right side of the lower ball tray 16 in the middle frame 12, and a ball striking device that is arranged on the middle frame 12 by the turning operation of the handle member 17. 18 is activated, and the pachinko balls stored in the upper ball tray 15 are launched toward the game area 13 a of the game board 13. In the upper position of the front frame 14, speaker units 130 and 130 for high-frequency sound are arranged on the left and right ends, respectively.

(About the middle frame)
As shown in FIGS. 2 to 4, the middle frame 12 has an upper frame body 20 a that forms an upper edge and a lower edge, and functions as an installation member that installs the speaker unit 19, the ball hitting device 18, and the like. The lower frame body 20b made of synthetic resin, the left frame body 20c forming the left side edge, and the right frame body 20d forming the right side edge are formed in a substantially rectangular shape, and the whole is aligned with the opening region of the outer frame 11. A rectangular frame is sized. Here, the opening area opened in the front-rear direction defined by the upper and lower and left and right frame bodies 20a to 20d functions as a game board housing frame portion 21 in which the game board 13 is detachably installed.

  As shown in FIG. 1 or FIG. 2, an upper support bracket 22 as a hinge bracket and a left upper end portion on the front surface of the upper frame body 20a in the middle frame 12 and a lower left end portion on the front surface of the lower frame body 20b, Lower support metal fittings (main body frame side metal fittings) 23 are provided. The upper support bracket 22 is formed with a first shaft hole 22a that opens upward, and the lower support bracket 23 is formed with a second shaft hole 23a that opens downward. The brackets 22 and 23 are respectively connected to a first upper coupling bracket 100 and a first lower coupling bracket (fixed) as hinge brackets provided in the outer frame 11 via the first and second shaft holes 22a and 23a. The middle frame 12 is supported by the outer frame 11 so as to be openable and closable by being pivotally supported by upper and lower support shafts 100a and 110a formed on a frame side member) 110 (both described later). The right frame body 20d is provided with a locking device 24, which holds the middle frame 12 in a closed state with respect to the outer frame 11 by a locking operation, and engages with an engaging portion by an unlocking operation. Is released so that the middle frame 12 can be opened with respect to the outer frame 11.

  Further, as shown in FIG. 2, the ball hitting device 18 is disposed at a substantially central position in the left-right direction of the lower frame body 20b, and a speaker unit 19 is accommodated at the lower left end of the lower frame body 20b. A first box-shaped portion 28 (see FIG. 3) is provided. The pachinko balls launched from the hitting ball launcher 18 are directed toward the game area 13a of the game board 13 installed in the game board housing frame portion 21 through the launch opening 26a formed on the upper surface of the lower frame body 20b. It has come to be launched.

  As shown in FIG. 3, FIG. 12, or FIG. 13, the first box-shaped portion 28 is formed integrally with the lower frame body 20 b and opens to the front, and an opening front end of the storage portion main body 29. A lid 32 that is disposed on the side and closes the front opening of the housing portion main body 29, and a space for housing the speaker unit 19 between the housing portion main body 29 and the lid body 32 (hereinafter referred to as the first). 1 space S1) is defined. A mounting portion 34 for attaching the speaker unit 19 is formed on the lid 32 so as to bulge forward, and the output portion 19a is exposed to the front side through a first output hole 32a opened in the mounting portion 34. The speaker unit 19 is screwed to the back side of the lid 32. That is, the speaker unit 19 is accommodated in the first box-shaped portion 28 with the front surface (the output portion 19a) exposed by screwing the lid 32 to which the speaker unit 19 is attached to the housing main body 29. The The speaker unit 19 disposed in the middle frame 12 is a middle / low sound output speaker unit.

  As shown in FIG. 3, FIG. 4, FIG. 12, or FIG. 13, a part of the housing main body 29 has a first connection port (first opening) 30 that opens into the first space S1. A part of the first space S <b> 1 is opened to the back side of the machine through the first connection port 30. The first connection port 30 is connected to the first duct D1 formed so as to protrude upward from the lower frame member 40 in a state in which the middle frame 12 is closed with respect to the outer frame 11. It is configured as follows. Note that the lower end (lower surface) of the middle frame 12 (lower frame body 20b) is formed substantially horizontally and extends in the horizontal rectangular shape extending in the left-right direction along the lower end of the middle frame 12. A connection port 30 is formed. Further, the lower end portion of the lower support fitting 23 disposed at the lower left end portion of the front surface of the middle frame 12 (lower frame body 20b) is downward from the lower end portion (lower surface) of the middle frame 12 (lower frame body 20b). To be exposed.

(Outer frame)
Next, the configuration of the outer frame 11 that supports the middle frame 12 so that it can be opened and closed will be described. As shown in FIG. 5 or 6, the outer frame 11 includes an upper frame member (horizontal frame member) 35 constituting an upper edge, a lower frame member (horizontal frame member) 40 constituting a lower edge, and a left edge. Is basically composed of a left frame member (vertical frame member) 37 constituting a right edge member and a right frame member (vertical frame member) 38 constituting a right edge. The upper frame member 35 and the left frame member 37 are connected and fixed via a first upper connection fitting 100 (described later), and the upper frame member 35 and the right frame member 38 are connected to a second upper connection fitting 101 ( It is connected and fixed via (described later). The lower frame member 40 and the left frame member 37 are connected and fixed via a first lower connecting bracket 110 (described later), and the lower frame member 40 and the right frame member 38 are connected to a second lower connecting bracket 120 ( The outer frame 11 is configured as a vertically long rectangular frame body by being connected and fixed via (described later) and connecting the frame members 35, 37, 38, and 40.

  As shown in FIG. 6, the upper frame member 35 is formed of a long wooden plate member having a required thickness. Step portions 36 are formed which are recessed by an amount substantially equal to the thickness of the two upper coupling fittings 101 (specifically, a first outer fixing plate 103 described later). Then, through holes 36a through which fixing screws (not shown) can be inserted are formed at a plurality of locations on each step 36 so as to penetrate vertically. The left and right frame members 37 and 38 are basically formed in a bilaterally symmetrical shape, and by folding back a metal plate such as aluminum, a substantially central position in the front-rear direction bulges into and out of the opening of the outer frame 11. The bulging part 39 which forms is formed, and it is comprised so that required rigidity may be provided. Further, at the upper and lower ends of the left and right frame members 37 and 38, through holes 37a and 38a that allow insertion of fixing screws are provided at a plurality of positions at front and rear positions sandwiching the bulging portion 39. Is formed.

  6 to 11, the lower frame member 40 is set to have substantially the same length as the upper frame member 35 and the front and rear width dimensions are substantially the same as the left and right frame members 37 and 38. And a wooden bottom plate 41 set on the front plate 41 and a synthetic resin curtain plate 44 disposed on the front end edge of the bottom plate 41. As shown in FIG. 8 or FIG. 9, the first lower connection fitting 110 (specifically, the lower facing plate portion 113 described later) and the second lower connection fitting are provided at the left and right ends of the bottom plate 41. First fixing portions 42 and 42 for fixing 120 (specifically, a lower facing plate portion 123 described later) are formed, and screw holes 42a are formed at a plurality of locations of each first fixing portion 42. . Further, a concave portion 41a that opens forward and vertically is formed between the first fixing portions 42, 42 located on the left and right at the front end edge of the bottom plate 41, and a box cover 80 described later is formed in the concave portion 41a. Be placed.

  As shown in FIG. 5 or FIG. 6, the curtain plate 44 is formed in a horizontally long rectangular shape extending from the front end surface of the left frame member 37 to the front end surface of the right frame member 38 and has a box shape opening rearward. A space (hereinafter referred to as a second space S2) is defined between the box cover 80 formed and disposed on the back side of the curtain plate 44. The left and right end portions on the back side of the curtain plate 44 have the first lower connection fitting 110 (specifically, at a position facing the front side of the left and right first fixing portions 42, 42 on the bottom plate 41). Second fixing portions 45 and 45 (see FIG. 11) for fixing a later-described support plate portion 117) and a second lower coupling fitting 120 (specifically, a later-described support plate portion 127) are formed. Here, each of the second fixing portions 45 is formed with two screw holes (not shown) and is provided with a positioning protrusion 45b protruding rearward. In addition, on the back side of the curtain plate 44, the second space S2 is partitioned so that the second space S2 is formed over substantially the entire length of the curtain plate 44 in the left-right direction. And the partition wall 44b (refer FIG. 9) which makes a wall surface on either side is formed.

  Further, as shown in FIG. 5 or FIG. 7, the first lower coupling fitting 110 (specifically, an upper facing plate portion 112 described later) is fixed to the upper left end portion of the upper surface 49 of the curtain plate 44. The installation portion 46 is formed so as to protrude forward in a curved shape. A first installation recess 47 that opens upward and rearward is formed on the upper surface of the installation portion 46, and the first inclined guide member 50 on which the lower end of the middle frame 12 rides when the middle frame 12 is closed. Is supposed to be installed. The first installation recess 47 has positioning holes 47a formed at two locations and screw holes 47b formed at one location. At the upper rear end of the curtain plate 44, a hook-like portion 44a is formed that protrudes upward and rearward over substantially the entire length in the left-right direction. However, the hook-shaped portion 44 a is formed in a range from the right end portion of the curtain plate 44 to the installation portion 46, and no hook-shaped portion 44 a is formed on the rear side of the installation portion 46. Further, at the right end portion of the upper surface 49 of the curtain plate 44, through holes 49a penetrating vertically are formed at two locations separated from each other in the left-right direction.

  As shown in FIG. 7, the first inclined guide member 50 includes a flat plate portion 51 that is sized to match the first installation recess 47, and a protruding portion 52 that protrudes upward from the flat plate portion 51. When the flat plate portion 51 is installed in the first installation recess 47, the upper surface of the flat plate portion 51 and the upper surface of the installation portion 46 (curtain plate 44) are located on the same plane. The flat plate portion 51 has positioning protrusions (not shown) that are detachably inserted into the positioning holes 47a at positions corresponding to the positioning holes 47a of the first installation recess 47. And a through-hole 54 penetrating vertically is formed at a position corresponding to the screw hole 47b of the first installation recess 47, and by inserting the positioning protrusion into each positioning hole 47a, The screw hole 47b of the first installation recess 47 and the through hole 54 of the first inclined guide member 50 are configured to be aligned. Then, the first lower connection fitting 110 (upper facing plate portion 112) is brought into contact with the first inclined guide member 50 installed in the first installation recess 47 (that is, the installation portion 46 and the first lower plate portion 112). The first lower connection fitting 110 is screwed to the installation portion 46 with the first inclined guide member 50 sandwiched between the connection fitting 110 and the connection fitting 110.

  In addition, a first inclined surface portion 52a that is inclined upward rearward is formed on the upper surface of the protruding portion 52, and in the process of closing the intermediate frame 12, a lower end portion of the intermediate frame 12 (specifically, When the lower support fitting 23) contacts the first inclined surface portion 52a and further closes the middle frame 12, the lower end portion of the middle frame 12 (lower support fitting 23) rides along the first inclined surface portion 52a. It is configured as follows. Here, the first inclined surface portion 52a is inclined downward to the lower support shaft 110a side (left diagonally forward) of the first lower coupling fitting 110, and the lower end portion of the middle frame 12 (when closed) When the lower support fitting 23) contacts the first inclined surface portion 52a, the contact portion of the middle frame 12 is configured to be parallel to the first inclined surface portion 52a.

  As shown in FIG. 6 or FIG. 7, a second installation recess 48 that opens upward and forward is formed on the upper surface 49 of the curtain plate 44 on the right end side that is separated from the installation part 46. In the second installation recess 48, a second inclined guide member 56 on which the lower end of the middle frame 12 rides when the middle frame 12 is closed is detachably disposed. An engagement hole 48a penetrating in the front-rear direction is formed in the rear end portion of the second installation recess 48 at a position separated in the left-right direction, and the front end portion of the second installation recess 48 extends in the left-right direction. An engaging groove 48b is recessed.

  As shown in FIG. 7, the second inclined guide member 56 protrudes rearward from the rear end surface and engages with an engagement hole 48a of the second installation recess 48 so as to be detachably engaged with the front end. An extension portion 58 extending downward from the portion, and a locking piece 59 protruding rearward from the lower end portion of the extension portion 58 and removably engaged with the engagement groove 48b of the second installation recess 48. I have. Then, the engagement hook 57 and the engagement piece 59 of the second inclined guide member 56 are engaged with the engagement hole 48a and the engagement groove 48b of the second installation recess 48 from the front side. The second inclined guide member 56 is detachably disposed in the second installation recess 48.

  Further, the second inclined guide member 56 is inclined upward from the front end portion toward the rear, and the lower end portion (specifically, the resin portion) of the middle frame 12 is in contact with the middle frame 12 when the middle frame 12 is closed. A second inclined surface portion 60 that rides, and a lower end of the intermediate frame 12 when the intermediate frame 12 is completely closed by connecting to the inclined rear end of the second inclined surface portion 60 and extending horizontally in the front-rear direction. And a support surface portion 62 that supports a portion (specifically, a resin portion). That is, in the process of closing the middle frame 12, the lower end portion (resin portion) of the middle frame 12 comes into contact with the second inclined surface portion 60, and the middle frame 12 is further closed, so that the lower end portion ( The resin portion) rides along the second inclined surface portion 60 and is finally supported by the support surface portion 62. The second inclined guide member 56 is formed with side inclined surface portions 61 and 61 that are inclined upward from the side end portion toward the support surface portion 62.

  Furthermore, on the upper surface 49 of the curtain plate 44, as shown in FIG. 7, a support rib 65 (third inclined guide) extending in the front-rear direction between the first installation recess 47 and the second installation recess 48 is provided. Part) are formed at two locations separated from each other in the left and right directions. The support rib 65 is inclined upwardly from the front end portion of the curtain plate 44 toward the rear, and the lower end portion (specifically, the resin portion) of the middle frame 12 contacts and rides on when the middle frame 12 is closed. When the middle frame 12 is closed with respect to the outer frame 11, and a support surface portion 67 connected to the inclined rear end of the third inclined surface portion 66 and extending horizontally in the front-rear direction. Further, the lower end portion of the middle frame 12 comes into contact with the support surface portion 67 of the support rib 65. That is, in the process of closing the middle frame 12, the lower end portion (resin portion) of the middle frame 12 comes into contact with the third inclined surface portion 66, and the middle frame 12 is further closed, so that the lower end portion ( (Resin portion) rides along the third inclined surface portion 66 and is finally supported by the support surface portion 67. That is, when the middle frame 12 is closed, the lower end portion of the middle frame 12 is supported by the second inclined guide member 56 and the support surface portions 62 and 67 of the support rib 65.

  Here, the height dimension of the second inclined guide member 56 and the support rib 65 is set to be lower than the height dimension of the flange portion 44a, and the middle frame 12 is closed with respect to the outer frame 11 to When the middle frame 12 is supported by the support surface portions 62 and 67, the back side of the lower end portion of the middle frame 12 is brought into contact with the front end surface of the bowl-shaped portion 44a. Note that the height of the first inclined surface portion 52a in the first inclined guide member 50 is the same as that of the second inclined surface portion 60 and the third inclined surface portion 66 in the second inclined guide member 56 and the support rib 65. When the middle frame 12 is set to be slightly lower than the height dimension and supported by the support surface portions 62 and 67, the middle frame 12 (lower support fitting 23) is separated from the first inclined guide member 50, and the first A gap is formed between the one inclined guide member 50 and the middle frame 12 (lower support fitting 23).

  Here, as shown in FIG. 8, the first inclined surface portion 52 a of the first inclined guide member 50 includes the second inclined surface portion 60 of the second inclined guide member 56 and the third of the support rib 65. It is configured to be positioned in front of the inclined surface portion 66. Each of the first to third inclined surface portions 52a, 60, 66 is configured such that when the middle frame 12 is closed, the lower end portion of the middle frame 12 first comes into contact with the first inclined surface portion 52a, The lower end portion of the middle frame 12 contacts the third inclined surface portion 66 in the process of riding on the first inclined surface portion 52a, and the lower end portion of the middle frame 12 is in contact with the third inclined surface portion in the process of riding on the third inclined surface portion 66. The positional relationship is in contact with 60.

  As shown in FIG. 6 or FIG. 7, a duct front half 70 constituting the front surface of the first duct D1 is formed on the left end side of the bowl-shaped portion 44a so as to protrude upward. The duct front half 70 includes a flat plate portion 70a that defines the front surface of the first duct D1, and a partition wall 70b that protrudes rearward from the upper edge and the left and right side edges of the flat plate portion 70a. A second connection port 71 opening in the front-rear direction is formed in a horizontally long rectangular shape. The flat plate portion 70 a is formed with a protruding piece 72 that protrudes forward along the opening edge of the second connection port 71. The second connection port 71 is formed at a position aligned with the first connection port 30 opened in the first box-shaped portion 28 (the housing main body 29) when the middle frame 12 is closed. The first and second connection ports 30 and 71 communicate with each other by closing the middle frame 12 (see FIG. 12). Further, when the middle frame 12 is closed, the protruding piece 72 faces the inside of the opening of the first connection port 30, and the airtightness of the first and second connection ports 30, 71 communicating with each other is improved. It has come to improve. And in the part which protruded from the upper edge of the flat plate part 70a in the said partition 70b, the protrusion part 73,73 which protrudes upwards is formed in the position spaced apart in the left-right direction.

  Further, a second output hole (second opening) 76 opened in the front-rear direction on the right end side is formed in a vertically long rectangular shape on the front surface of the curtain plate 44, and the second output hole 76 is connected to the second output hole 76 through the second output hole 76. A part of the second space S2 is opened to the front side of the machine. Further, on the back side of the curtain plate 44, as shown in FIG. 9, a first connecting tube portion (first connecting duct) 75 communicating with the second output hole 76 is rearwardly protruded into the second space S2. The first support boss 77 projecting rearwardly extends in the front-rear direction at a position away from the first connecting cylinder 75 in the left direction (first duct D1 side). Has been.

  As shown in FIG. 6, the box cover 80 disposed on the back side of the curtain plate 44 is formed in a box shape opening forward, and abuts against the rear end surface of the partition wall 44 b of the curtain plate 44. A box body 81 that defines the second space S2 and a duct rear half body 87 that is aligned with the back side of the duct front half body 70 formed in the curtain plate 44 and that constitutes the rear surface of the first duct D1. ing. That is, by assembling the curtain plate 44 and the box cover 80, a second box-shaped portion 78 that defines a second space S2 extending over the entire length of the outer frame 11 in the left-right direction is formed. Here, in the embodiment, the volume of the second box-shaped portion 78 is set to be equal to or larger than the volume of the first box-shaped portion 28.

  The box body 81 is formed in a box shape that opens forward from a rear wall 82 that faces the curtain plate 44 and an outer peripheral wall 83 that is connected to the rear wall 82 and forms upper and lower and left and right wall surfaces of the box body 81. In addition, a contact piece 83a that contacts the rear end surface of the partition wall 44b formed on the curtain plate 44 is formed at the front end of the outer peripheral wall 83 so as to protrude outward. An extension piece 84 extending forward is formed at the opening front end of the box body 81 (outer peripheral wall 83), and the extension piece 84 is a surface on the second space S2 side of the partition wall 44b. To improve the airtightness of the second space S2 (see FIG. 10 or FIG. 11). Each of the outer peripheral wall 83 and the extending piece 84 is formed with a notch 85 (see FIG. 6) cut out at a position corresponding to the duct front half 70 (first duct D1). The first duct D1 is configured to communicate with the second space S2 via the portion 85.

  As shown in FIG. 6 or FIG. 7, the duct rear half 87 is formed at the position where the notch 85 is formed, and is connected to the rear wall 82 so as to bulge rearward from the rear wall 82 of the box body 81. In addition, it is formed in a dish shape that opens forward. When the box cover 80 is assembled to the curtain plate 44, the opening front end of the duct rear half 87 abuts against the opening rear end of the partition wall 70b of the duct front half 70, so that the hollow first duct D1 Is formed. That is, the first duct D1 opens forward via a second connection port 71 formed in the duct first half 70 and communicates with the second space S2 via the notch 85. Here, in the embodiment, the lateral dimension of the first duct D1 is made larger than the projecting dimension of the first duct D1 projecting from the upper surface 49 of the curtain plate 44, and the volume of the first duct D1 is increased. Each of the duct first half 70 and the duct second half 87 is formed so as to ensure the above. Further, the duct latter half 87 is formed with a surrounding piece 88 surrounding the outside of the partition wall 70b in the duct first half 70 so as to improve the airtightness of the first duct D1. In the surrounding piece 88, insertion engagement holes 88a that are opened up and down are provided at two positions that are spaced apart from each other at positions corresponding to the protrusions 73 formed in the partition wall 70b of the duct first half 70. The upper ends of the duct front half body 70 and the duct rear half body 87 are positioned by inserting the protrusions 73 into the insertion engagement holes 88a.

  Also, as shown in FIG. 6 or FIG. 11, a duct member 90 connected to the first connecting cylinder portion 75 formed on the curtain plate 44 is provided in the second space S2. The duct member 90 is connected to the second connecting cylinder part 91 (second connecting duct) 91 into which the first connecting cylinder part 75 is removably inserted, and is connected to the rear and the second connecting cylinder part 91. It is comprised from the box-shaped duct main body 92 opened to the side by the side of the 1st duct D1. The duct main body 92 includes a flat plate portion 92a that faces the curtain plate 44, and upper and lower edges of the flat plate portion 92a and a rising wall that protrudes backward from one side edge portion (left side edge portion in FIG. 9). The second connecting cylinder portion 91 is configured to be open to the side end portion side where the rising wall 92b is formed. Here, at the connecting position between the second connecting cylinder 91 and the duct main body 92, a positioning step 94 where the rear end portion of the first connecting cylinder 75 inserted in the second connecting cylinder 91 abuts. The first and second connecting cylinder portions 75 and 91 are positioned by the first connecting cylinder portion 75 coming into contact with the positioning step portion 94.

  A second support boss 93 is formed on the front surface side of the flat plate portion 92a of the duct main body 92 so as to protrude forward at a position spaced vertically. The first support boss 93 includes a first support boss 93 that protrudes forward. A bottomed insertion hole 93a (see FIG. 6) into which the support boss 77 can be inserted is formed. The first connection cylinder portion 75 is inserted into the second connection cylinder portion 91, and the second support boss 93 is By inserting the first support boss 77 into the insertion hole 93a, the duct body 92 is detachably attached to the back side of the curtain plate 44. When the box cover 80 is assembled to the curtain plate 44 to which the duct main body 92 is attached, the rear end portion of each rising wall 92b of the duct main body 92 is the rear wall 82 of the box main body 81 of the box cover 80. It comes in contact with the front of the.

  That is, the rear end portion of each rising wall 92b of the duct main body 92 abuts on the front surface of the box cover 80 (box main body 81), so that as shown in FIG. A second duct D2 is formed which communicates with the second output hole 76 and opens into the second space S2 on the other end side (left end side). That is, the middle frame 12 is closed with respect to the outer frame 11, and the first connection port 30 of the first box-shaped portion 28 in the middle frame 12 communicates with the second connection port 71 of the first duct D1. By connecting the first box-shaped portion 28 (first space S1), the first duct D1, the second box-shaped portion 78 (second space S2), and the second duct D2, a so-called double bass reflex structure enclosure is formed. It is formed. Here, in the embodiment, the size of the duct member 90 is set so that the volume of the second duct D2 is equal to or larger than the volume of the first duct D1. In addition, a curved surface portion 95 that is curved in an arc shape is formed inside the rising wall 92b formed at the side edge portion of the duct member 90, and the sound that has passed between the duct main body 92 and the box cover 80 is curved. The second output hole 76 can be smoothly guided along the portion 95.

(Outer frame connection structure)
Next, the connection structure of the frame members 35, 37, 38, 40 of the outer frame 11 will be described.

(Connection structure of upper frame member and left and right frame members)
The first upper connection fitting 100 that connects the upper frame member 35 and the left frame member 37 of the outer frame 11 and the second upper connection fitting 101 that connects the upper frame member 35 and the right frame member 38 are basically the same. Since the configuration is the same, the first upper coupling fitting 100 will be described, the second upper coupling fitting 101 will be assigned the same reference numeral, and detailed description thereof will be omitted. As shown in FIG. 14, the first upper connection fitting 100 is substantially extended from the stepped portion 36 provided at the upper left end portion of the upper frame member 35 to the outer surface side of the upper end portion of the left frame member 37. An outer connection fitting 102 formed in an L shape and an inner connection formed in a substantially L shape extending from the lower surface of the upper left end portion of the upper frame member 35 to the inner surface side of the upper end portion of the left frame member 37. It is comprised from the metal fitting 106. The outer connecting fitting 102 has a through hole that vertically penetrates the first outer fixing plate 103 that contacts the step portion 36 of the upper frame member 35 at a corresponding position of each through hole 36 a formed in the step portion 36. 103 a is formed, and the second outer fixing plate 104 abutting against the left frame member 37 has a through hole 104 a penetrating left and right at a corresponding position of each through hole 37 a formed at the upper end portion of the left frame member 37. Are formed respectively. On the other hand, a screw hole 107a is formed in the inner connecting metal fitting 106 at a position corresponding to the through hole 36a formed in the upper frame member 35 in the first inner fixing plate 107 contacting the upper frame member 35. Screw holes 108 a are respectively formed at positions corresponding to the through holes 37 a formed in the left frame member 37 in the second inner fixing plate 108 that contacts the upper end portion of the frame member 37. That is, the fixing screws inserted through the through holes 103a of the first outer fixing plate 103 and the through holes 36a of the upper frame member 35 are screwed into the corresponding screw holes 107a of the first inner fixing plate 107, and the second By inserting a fixing screw inserted through the through hole 104a of the outer fixing plate 104 and the through hole 37a at the upper end portion of the left frame member 37 into the corresponding screw hole 108a of the second inner fixing plate 108, the outer connecting bracket 102 and the inner connection fitting 106 are fixed, and the upper frame member 35 and the left frame member 37 are connected.

  Here, the inner connecting metal fitting 106 has a recessed portion 106 a that is recessed toward the inner side of the opening of the outer frame 11 at a substantially central position in the front-rear direction from the first inner fixing plate 107 to the second inner fixing plate 108. It is provided over the entire length, and the rigidity of the inner connecting fitting 106 is increased. Further, the recessed portion 106 a of the inner connecting metal fitting 106 is configured to be aligned with the bulged portion 39 formed in the left frame member 37, and the recessed portion 106 a and the bulged portion 39 are aligned. As a result, the positional displacement of the inner connecting metal fitting 106 is prevented. The outer connecting fitting 102 that connects the upper frame member 35 and the left frame member 37 is provided with a support piece portion 105 that extends forward from the front end of the upper frame member 35 on the first outer fixing plate 103. An upper support shaft 100 a that is supported by the first shaft hole 22 a of the upper support fitting 22 provided in the middle frame 12 is suspended from the support piece portion 105 of the first outer fixing plate 103.

(Connection structure of lower frame member and left frame member)
As shown in FIG. 15, the first lower connecting bracket 110 that connects the lower frame member 40 and the left frame member 37 of the outer frame 11 is a first connection reinforcing bracket (first 1 metal fitting) 111 and a second connection reinforcing metal fitting (second metal fitting) 115 having a substantially L-shaped cross section. The first connection reinforcing metal fitting 111 includes a pair of opposing plate portions 112 and 113 facing each other at a predetermined interval in the vertical direction, and a connection plate portion 114 provided continuously to the left end edge of the pair of opposing plate portions 112 and 113. The connecting plate portion 114 is fixed to the lower end portion of the left frame member 37. Here, in the connecting plate portion 114, a groove portion 114a into which the bulging portion 39 formed in the left frame member 37 can be inserted is formed over the entire length in the vertical direction. In a state where the groove 114a is aligned, through holes 114b penetrating in the left and right directions are formed at positions corresponding to the through holes 37a formed in the lower end portion of the left frame member 37. Further, the connecting plate 114 is provided with positioning protrusions 114c protruding rightward at two locations spaced apart in the front-rear direction (only one positioning protrusion 114c is shown in FIG. 15). In the following description, the upper side of the pair of opposing plate portions is referred to as the upper opposing plate portion 112, and the lower side is referred to as the lower opposing plate portion 113.

  The upper facing plate portion 112 extends to the installation portion 46 formed on the curtain plate 44 of the lower frame member 40 and is formed in a shape capable of covering the entire upper surface of the installation portion 46. In the vicinity of the front end portion of the opposing plate portion 112, a lower support shaft 110a that is pivotally supported by the second shaft hole 23a of the lower support fitting 23 provided in the middle frame 12 is provided so as to protrude upward. Further, the protruding portion 52 can be inserted into the upper facing plate portion 112 at a position corresponding to the protruding portion 52 of the first inclined guide member 50 disposed in the first setting recess 47 of the setting portion 46. A through hole 112b is formed, and a through hole 112a penetrating vertically is formed at a position vertically aligned with the screw hole 47b of the first installation recess 47. That is, the protrusion 52 of the first inclined guide member 50 disposed in the first installation recess 47 of the installation portion 46 is inserted, and the through hole 112a of the upper facing plate portion 112 and the first inclined guide member are inserted. The upper opposing plate portion 112 is installed with the flat plate portion 51 of the first inclined guide member 50 being sandwiched by screwing the screw inserted through the 50 through hole 54 into the screw hole 47b of the first installation recess 47. It is connected to the part 46.

  Further, the lower facing plate portion 113 has a through-hole penetrating vertically at a position aligned with the screw hole 42a of the first fixing portion 42 formed on the left side of the bottom plate 41 constituting the lower frame member 40. 113a is formed, and by screwing the screw inserted into the through hole 113a of the lower facing plate portion 113 into the screw hole 42a of the bottom plate 41 (first fixing portion 42), the lower facing plate portion 113 ( The first lower coupling fitting 110) and the lower frame member 40 (bottom plate 41) are coupled.

  As shown in FIG. 15, the second connection reinforcing bracket 115 is connected to the overlapping plate portion 116 that overlaps the connecting plate portion 114 in the first connection reinforcing bracket 111 and the front end of the overlapping plate portion 116. The first connection reinforcing metal fitting 111 includes a support plate portion 117 that faces between the upper and lower opposing plate portions 112 and 113. The overlapping plate portion 116 is formed with a screw hole 116a at a position corresponding to the through hole 114b of the connecting plate portion 114, and at the position corresponding to the positioning protrusion 114c of the connecting plate portion 114. A positioning hole 116b into which the portion 114c can be inserted is formed. Then, with the positioning projection 114c of the connecting plate portion 114 inserted into the positioning hole 116b of the overlapping plate portion 116, a through hole 37a formed in the lower end portion of the left frame member 37 and the through hole of the connecting plate portion 114 The first and second connection reinforcing metal fittings 111 and 115 are integrally connected to the left frame member 37 by screwing the screw inserted through 114 b into the screw hole 116 a of the overlapping plate portion 116.

  The support plate 117 is formed with a through-hole 117a penetrating in the front-rear direction at a position aligned with the screw hole formed in the second fixing portion 45 located on the left side of the curtain plate 44. A positioning hole 117b is formed at a position aligned with the positioning protrusion 45b formed in the second fixing portion 45. That is, the screw inserted through the through hole 117a of the support plate 117 while the positioning protrusion 45b of the second fixing portion 45 located on the left side of the curtain plate 44 is inserted into the positioning hole 117b of the support plate 117. Is screwed into the screw hole of the second fixing portion 45, whereby the support plate portion 117 is connected to the curtain plate 44 (second fixing portion 45). That is, in the first lower connection fitting 110, the first connection reinforcement fitting 111 connects and fixes the lower end portion of the left frame member 37 to the bottom plate 41 and the curtain plate 44 of the lower frame member 40, and further, Two connection reinforcing metal fittings 115 connect and fix the lower end portion of the left frame member 37 and the curtain plate 44 (second fixing portion 45) of the lower frame member 40.

(Connection of lower frame member and right frame member)
As shown in FIG. 16, the second lower connecting bracket 120 that connects the lower frame member 40 and the right frame member 38 of the outer frame 11 is a third connecting reinforcing bracket (first 1 metal fittings) 121 and a fourth connection reinforcing metal fitting (second metal fitting) 125 having a substantially L-shaped cross section. Here, the third connection reinforcing metal fitting 121 has the same basic configuration as the first connection reinforcing metal fitting 111 described above, and a pair of opposing plate portions 122 and 123 which are spaced apart from each other by a predetermined distance. And a connecting plate portion 124 connected to the right end edge of the pair of opposing plate portions 122 and 123, and is configured to fix the connecting plate portion 124 to the lower end portion of the right frame member 38. The Here, the connecting plate portion 124 is formed with a groove portion 124a into which the bulging portion 39 formed in the right frame member 38 can be inserted over the entire length in the vertical direction. In a state where the groove portion 124a is aligned, through holes 124b penetrating left and right are formed at positions corresponding to the respective through holes 38a formed in the lower end portion of the right frame member 38. Further, the connecting plate portion 124 is provided with positioning protrusions 124c protruding rightward at two positions spaced apart in the front-rear direction (only one positioning protrusion 124c is shown in FIG. 16). In the following description, in the pair of opposing plate portions, the upper side is referred to as the upper opposing plate portion 122 and the lower side is referred to as the lower opposing plate portion 123.

  The upper facing plate portion 122 extends so as to overlap the back side of the upper surface 49 of the curtain plate 44 in the lower frame member 40, and is aligned with a through hole 49a formed in the upper surface 49 of the curtain plate 44. A screw hole 122a is formed. That is, the upper opposing plate portion 122 is connected to the curtain plate 44 by screwing the screw inserted into the through hole 49 a of the curtain plate 44 into the screw hole 122 a of the upper opposing plate portion 122. Further, the lower facing plate portion 123 has a through-hole penetrating vertically at a position aligned with the screw hole 42a of the first fixing portion 42 formed on the right side of the bottom plate 41 constituting the lower frame member 40. 123a is formed, and by screwing the screw inserted through the through hole 123a of the lower facing plate portion 123 into the screw hole 42a of the bottom plate 41 (first fixing portion 42), the lower facing plate portion 123 ( The second lower connection fitting 120) and the lower frame member 40 (bottom plate 41) are connected.

  As shown in FIG. 16, the fourth connection reinforcing metal fitting 125 is formed symmetrically with the second connection reinforcing metal fitting 115. That is, the fourth connection reinforcing metal fitting 125 is connected to the overlapping plate portion 126 that overlaps the connecting plate portion 124 in the second connection reinforcing metal fitting 121 and the front end of the overlapping plate portion 126 so as to be connected to the second connection reinforcing metal fitting 125. It is comprised from the support board part 127 which faces between the upper and lower opposing board parts 122 and 123 in the reinforcement metal fitting 121. FIG. A screw hole 126a is formed in the overlapping plate portion 126 at a position corresponding to the through hole 124b of the connecting plate portion 124, and the positioning protrusion is positioned at a position corresponding to the positioning protrusion 124c of the connecting plate portion 124. A positioning hole 126b into which the portion 124c can be inserted is formed. Then, with the positioning protrusion 124 c of the connecting plate portion 124 inserted into the positioning hole 126 b of the overlapping plate portion 126, the through hole 38 a formed in the lower end portion of the right frame member 38 and the through hole of the connecting plate portion 124. The third and fourth connection reinforcing brackets 121 and 125 are integrally connected to the right frame member 38 by screwing the screws inserted through 124b into the screw holes 126a of the overlapping plate portion 126.

  The support plate 127 is formed with a through-hole 127a penetrating in the front-rear direction at a position aligned with the screw hole formed in the second fixing portion 45 located on the right side of the curtain plate 44. A positioning hole 127b is formed at a position aligned with the positioning protrusion 45b formed in the second fixing portion 45. That is, the screw inserted through the through hole 127a of the support plate 127 while the positioning protrusion 45b of the second fixed portion 45 located on the right side of the curtain plate 44 is inserted into the positioning hole 127b of the support plate 127. Is screwed into the screw hole of the second fixing portion 45, whereby the support plate portion 127 is connected to the curtain plate 44 (second fixing portion 45). That is, in the second lower connection fitting 120, the third connection reinforcement fitting 121 connects and fixes the lower end portion of the right frame member 38 to the bottom plate 41 and the curtain plate 44 of the lower frame member 40, and further, The four connection reinforcing metal fittings 125 connect and fix the lower end portion of the right frame member 38 and the curtain plate 44 (second fixing portion 45) of the lower frame member 40.

(Effects of Example)
Next, the operation of the pachinko machine 10 according to the embodiment configured as described above will be described.

  In the pachinko machine 10 according to the embodiment, the upper frame member 35 and the left frame member 37 of the outer frame 11 are connected and fixed by the first upper connection fitting 100, and the upper frame member 35 and the right frame member 38 are connected to the second upper connection member 100. It is connected and fixed by the connecting fitting 101. Here, the first and second connection fittings 100 and 101 are formed by sandwiching the upper frame member 35 and the left and right frame members 37 and 38 between the outer connection fitting 102 and the inner connection fitting 106. Since it is configured to connect, the rigidity can be improved as compared with the configuration in which two frame members are connected by one metal fitting. In addition, the inner coupling fitting 106 is formed with a recessed portion 106 a extending from the first inner fixing plate 107 that contacts the upper frame member 35 to the second inner fixing plate 108 that contacts the corresponding left and right frame members 37 and 38. Therefore, the rigidity of the inner connecting fitting 106 is remarkably improved, and the connecting portion of the upper frame member 35 and the left frame member 37 in the outer frame 11 and the connecting portion of the upper frame member 35 and the right frame member 38 are deformed. Can be effectively prevented.

  Further, the lower frame member 40 and the left frame member 37 of the outer frame 11 are connected and fixed by a first lower connection fitting 110. The first lower connection fitting 110 is vertically opposed to the first connection reinforcement fitting 111 in which the support plate portion 117 of the second connection reinforcement fitting 115 formed in an L shape in cross section is formed in a U shape in cross section. It is comprised so that it may face between board part 112,113. For this reason, when a lateral force acts on the outer frame 11 and the left frame member 37 tries to be deformed so as to fall into the inside of the opening, the upper opposing plate portion 112 of the first connection reinforcing metal fitting 111 Contact with the support plate portion 117 of the second connection reinforcing metal fitting 115 prevents deformation of the left frame member 37. Further, in the first lower connection fitting 110, the upper facing plate portion 112 in the first connection reinforcing fitting 111 is connected to the installation portion 46 of the curtain plate 44 in the lower frame member 40, and is opposed to the lower side. The plate portion 113 is connected to the left first fixing portion 42 in the lower frame member 40, and the connection plate portion 114 is further connected to the left frame member 37. The second connection reinforcing bracket 115 is connected to the left frame member 37 such that the overlapping plate portion 116 overlaps the connection plate portion 114 of the first connection reinforcing bracket 111, and the support plate portion 117 is It is connected to the second fixed portion 45 on the left side of the curtain plate 44. Therefore, when the left frame member 37 is deformed so as to fall into the inside of the opening, the upper counter plate portion 112 of the first connection reinforcing bracket 111 tends to move to the right side, whereas the upper counter plate portion Since the curtain plate 44 (installation portion 46) to which the joint 112 is connected is also coupled to the second connection reinforcing metal fitting 115, the movement of the curtain plate 44 (installation portion 46) is performed by the second connection reinforcement metal fitting 115. Is regulated. That is, by connecting the first connection reinforcing metal fitting 111 and the second connection reinforcing metal fitting 115 to the left frame member 37 and the curtain plate 44, the deformation of the left frame member 37 is restricted, and the outer The rigidity of the frame 11 can be improved.

  Similarly, the lower frame member 40 and the right frame member 38 of the outer frame 11 are connected and fixed by a third lower connection fitting 120. The second lower connection fitting 120 is vertically opposed to the third connection reinforcement fitting 121 in which the support plate portion 127 of the fourth connection reinforcement fitting 125 formed in an L shape in cross section is formed in a U shape in cross section. It is comprised so that it may face between the board parts 122 and 123. FIG. For this reason, when a lateral force acts on the outer frame 11 and the right frame member 38 tries to be deformed to fall inside the opening, the upper opposing plate portion 122 of the third connection reinforcing metal member 121 The contact with the support plate portion 127 of the fourth connection reinforcing metal fitting 125 is prevented from deforming the right frame member 38. In the second lower connection fitting 120, the upper facing plate portion 122 in the third connection reinforcing fitting 121 is connected to the right end portion side of the curtain plate 44 in the lower frame member 40, and the lower facing portion is connected. The plate portion 123 is connected to the first fixing portion 42 on the right side of the lower frame member 40, and the connecting plate portion 124 is further connected to the right frame member 38. The fourth connection reinforcing bracket 125 is connected to the right frame member 38 so that the overlapping plate portion 126 overlaps the connection plate portion 124 of the third connection reinforcing bracket 121, and the support plate portion 127 is It is connected to the right second fixing portion 45 of the curtain plate 44. Therefore, when the right frame member 38 is deformed so as to fall into the inside of the opening, the upper facing plate portion 122 of the third connection reinforcing bracket 121 tends to move to the left side, whereas the upper facing plate portion Since the curtain plate 44 to which 122 is coupled is also coupled to the fourth coupling reinforcement fitting 125, the movement of the curtain plate 44 is restricted by the fourth coupling reinforcement bracket 125. That is, by connecting the third connection reinforcing metal fitting 121 and the fourth connection reinforcing metal fitting 125 to the right frame member 38 and the curtain plate 44, the deformation of the right frame member 38 is restricted, and the outer frame 11 The rigidity of the can be improved.

  That is, the lower frame member 40 and the left frame member 37 are connected and fixed by the first lower connection fitting 110, and the lower frame member 40 and the right frame member 38 are connected and fixed by the second lower connection fitting 120, The connecting portion of the lower frame member 40 and the left frame member 37 and the connecting portion of the lower frame member 40 and the right frame member 38 are prevented from being deformed, and the rigidity of the entire outer frame 11 is improved.

  A lower support shaft 110a that pivotally supports a lower end portion (lower support metal fitting 23) of the middle frame 12 is formed on the upper facing plate portion 112 of the first lower connection fitting 110. In the opened state, not only the inner frame 12, but also the game board 13, the front frame 14, the upper and lower ball trays 15 and 16, and other members arranged on the inner frame 12 are all the first lower connecting brackets. It concentrates on the upper opposing plate part 112 of 110. FIG. Also in this case, since the upper opposing plate portion 112 of the first connection reinforcing metal fitting 111 that supports the middle frame 12 is supported by the support plate portion 117 of the second connection reinforcing metal fitting 115, the upper opposing plate portion 112 is deformed. The middle frame 12 can be supported without inviting etc. Further, the upper opposing plate portion 112 of the first connection reinforcing metal fitting 111 is supported by the support plate portion 117 of the second connection reinforcing metal fitting 115, so that the lower frame member 40 with which the upper opposing plate portion 112 abuts is supported. It is possible to prevent an excessive load from being applied to the curtain plate 44 (installation portion 46) and to prevent the curtain plate 44 (installation portion 46) from being damaged.

  When the middle frame 12 is closed, the middle frame 12 is supported by the curtain plate 44 (second inclined guide member 56 and support rib 65), and the game board 13 disposed on the middle frame 12 or the like. Is concentrated on the upper surface 49 of the curtain plate 44. In the embodiment, the upper facing plate portion 122 of the third connection reinforcing metal member 121 in the second lower connection metal member 120 abuts on the back side of the upper surface 49 of the screen plate 44, so that the screen plate 44 (second inclined guide). The load applied to the member 56 and the support rib 65) can be supported by the upper facing plate portion 122, and the middle frame 12 can be reliably supported without causing deformation of the curtain plate 44 or the like.

  In addition, the connecting plate portion 114 of the first connecting reinforcing metal fitting 111 in the first lower connecting metal fitting 110 and the overlapping plate portion 116 in the second connecting reinforcing metal fitting 115 are overlapped with the left frame member 37 in an integrated state. As a result of the connection, the integrity of the two reinforcing metal fittings 111 and 115 is improved, and an improvement in the reinforcing effect can be expected. Further, a groove 114a is formed in the connecting plate portion 114 of the first connecting reinforcing metal fitting 111 so as to be aligned with the bulging portion 39 formed in the left frame member 37. On the other hand, it is possible to prevent the first connection reinforcing metal fitting 111 from being displaced in the front-rear direction, and to prevent a reduction in the reinforcing effect due to the displacement. Further, when the first connection reinforcing metal fitting 111 and the second connection reinforcing metal fitting 115 are assembled, the positioning protrusion 114c formed on the connection plate portion 114 of the first connection reinforcing metal fitting 111 is the second connection reinforcing metal fitting 111. By being inserted into the positioning hole 116b formed in the overlapping plate portion 116 of the reinforcing bracket 115, the first connecting reinforcing bracket 111 and the second connecting reinforcing bracket 115 can be positioned, and both the reinforcing brackets can be positioned. It is possible to prevent a reduction in the reinforcing effect due to the positional deviation of 111,115. Further, the positioning protrusion 114c and the positioning hole 116b can prevent the first connection reinforcing metal fitting 111 and the second connection reinforcing metal fitting 115 from being assembled in an erroneous state.

  And the relationship of the 1st lower connection metal fitting 110 mentioned above is materialized also about the 2nd lower connection metal fitting 120. FIG. That is, the right frame member 38 is overlapped with the connecting plate portion 124 of the third connecting reinforcing metal member 121 in the second lower connecting metal member 120 and the overlapping plate portion 126 in the fourth connecting reinforcing metal member 125. By connecting them integrally, the integrity of the two reinforcing metal members 121 and 125 is improved, and an improvement in the reinforcing effect can be expected. Further, a groove portion 124a is formed in the connection plate portion 124 of the third connection reinforcing metal fitting 121 so as to be aligned with the bulging portion 39 formed in the right frame member 38. On the other hand, it is possible to prevent the third connecting reinforcing metal member 121 from being displaced in the front-rear direction, and to prevent a reduction in the reinforcing effect due to the displacement. Further, when the third connection reinforcing metal fitting 121 and the fourth connection reinforcing metal fitting 125 are assembled, the positioning protrusion 124c formed on the connection plate portion 124 of the third connection reinforcing metal fitting 121 is the fourth connection reinforcing metal fitting 121. By being inserted into the positioning hole 126b formed in the overlapping plate portion 126 of the reinforcing metal fitting 125, the third connecting reinforcing metal 121 and the fourth connecting reinforcing metal 125 can be positioned, and both reinforcing metal fittings can be positioned. It is possible to prevent a reduction in the reinforcing effect due to the positional deviation of 121,125. Further, the positioning protrusions 124c and the positioning holes 126b can prevent the third connection reinforcing metal member 121 and the fourth connection reinforcing metal member 125 from being assembled in an incorrect state.

  Further, the play between the first shaft hole 22a in the upper support fitting 22 that pivotally supports the middle frame 12 and the upper support shaft 100a in the first upper connection fitting 100, the second shaft hole 23a in the lower support fitting 23, and the second Due to the play with the lower support shaft 110 a in the lower connection fitting 110, the open end side hangs down due to the weight of the middle frame 12 when the middle frame 12 is opened. Therefore, in the pachinko machine 10 according to the embodiment, the first inclined guide member 50 is provided on the first lower connecting bracket 110 side (left frame member 37 side) of the lower frame member 40 (screen plate 44) in the outer frame 11. , A second inclined guide member 56 is disposed on the right end side (right frame member 38 side) of the lower frame member 40 (screen plate 44), and the lower frame member 40 (screen plate) is further disposed. 44), a support rib 65 is provided between the first inclined guide member 50 and the second inclined guide member 56 so that the lower end portion of the intermediate frame 12 is lifted when the intermediate frame 12 is closed. Thus, the sag of the open end side of the middle frame 12 is corrected, and the middle frame 12 can be prevented from contacting the lower frame member 40 (curtain plate 44).

  Specifically, in the process of closing the middle frame 12, the lower end of the middle frame 12 on the lower support fitting 23 side rides on the first inclined surface portion 52a of the first inclined guide member 50 and is lifted. When the middle frame 12 is further closed in this state, the lower end portion on the right side of the middle frame 12 from the lower support fitting 23 side rides on the third inclined surface portion 66 of the support rib 65 and is lifted. When the closing of the middle frame 12 is further continued, the lower end portion on the open end side of the middle frame 12 rides on the second inclined surface portion 60 of the second inclined guide member 56 and is lifted. That is, when the middle frame 12 is closed, the whole frame 12 is lifted up from the lower end on the lower support fitting 23 side to the lower end on the open end side, so that the inclination of the middle frame 12 is corrected. 12 is prevented from contacting the front surface of the lower frame member 40 (curtain plate 44).

  As shown in FIGS. 17 to 20, the first inclined guide member 50 (first inclined surface portion 52 a) and the second inclined guide are arranged at positions separated from the left and right of the curtain plate 44 in the lower frame member 40. By providing the member 56 (second inclined surface portion 60) and the support rib 65 (third inclined surface portion 66), in the process of closing the middle frame 12, the lower end portion of the middle frame 12 is first the first. The lower end portion of the middle frame 12 contacts the third inclined surface portion 66 and rides on the third inclined surface portion 66 while riding on the first inclined surface portion 52a. Thus, the lower end portion of the middle frame 12 comes into contact with the second inclined surface portion 60 and rides up. Thus, in the process of closing the middle frame 12, the lower end portion of the middle frame 12 is gradually lifted by the first to third inclined surface portions 52a, 60, 66, thereby smoothly closing the middle frame 12. In addition, the load applied to each of the first to third inclined surface portions 52a, 60, 66 can be dispersed, and the durability against opening and closing of the middle frame 12 can be improved. Further, in a state where the middle frame 12 is completely closed, the lower end portion of the middle frame 12 abuts on the support surface portions 62 and 67 provided on the second inclined guide member 56 and the support rib 65. The load can be dispersed and supported.

  Here, the first inclined guide member 50 is provided at a position closest to the first lower connecting fitting 110 that pivotally supports the middle frame 12, and the closed middle frame 12 is the first When contacting the inclined guide member 50 (first inclined surface portion 52a), the crossing angle between the middle frame 12 and the lower frame member 40 (curtain plate 44) becomes large. For this reason, when the first inclined surface portion 52a of the first inclined guide member 50 is uniformly inclined upward from the front end portion to the rear, the first inclined surface portion is closed when the middle frame 12 is closed. The middle frame 12 (lower support fitting 23) is in contact with only the left end portion of 52a, which may cause damage and scraping to the first inclined surface portion 52a. Therefore, in the embodiment, when the closed middle frame 12 comes into contact with the first inclined guide member 50 (first inclined surface portion 52a), the first inclined surface portion 52a and the lower support metal fitting on the inner frame 12 are used. 23, the lower support fitting 23 of the middle frame 12 can be supported by the entirety of the first inclined surface portion 52a, and the first inclined surface portion 52a can be supported. The middle frame 12 can be smoothly lifted while preventing the occurrence of scratches and scraping.

  The first inclined guide member 50 is disposed in a first installation recess 47 of an installation portion 46 formed on the curtain plate 44 of the lower frame member 40, and the first inclination guide member 50 is disposed in the first installation recess 47. In the state in which the screw is inserted, the screws inserted into the through holes 112a formed in the upper facing plate portion 112 of the first lower connection fitting 110 and the through holes 54 formed in the first inclined guide member 50 are inserted into the installation portion 46 ( The first installation recess 47) is fixed by screwing into the screw hole 47a. That is, since the first inclined guide member 50 can be fixed in conjunction with the connection of the first lower connecting bracket 110 to the lower frame member 40 (screen plate 44), the first inclined guide member 50 is easily attached. be able to.

  When the first inclined guide member 50 is fixed to the installation portion 46, the first inclined surface portion 52a of the first inclined guide member 50 is the upper facing plate of the first lower connecting bracket 110. Since it faces the through hole 112b formed in the portion 112, the lower end portion of the middle frame 12 can be brought into contact with the first inclined surface portion 52a when the middle frame 12 is closed. Further, by causing the first inclined surface portion 52a of the first inclined guide member 50 to face the through hole 112b of the upper facing plate portion 112, when the middle frame 12 comes into contact with the first inclined surface portion 52a, The first inclined guide member 50 does not come off from the installation portion 46.

  Further, the second inclined guide member 56 includes an engaging groove 48b of a second installation recess 48 in which a locking piece 59 formed on the second inclined guide member 56 is formed on the curtain plate 44 of the lower frame member 40. The engagement hooks 57, 57 formed on the second inclined guide member 56 are engaged with the engagement holes 48a formed in the second installation recess 48 from the front. 2 Fixed to the installation recess 48. On the other hand, the engagement between the engagement hook 57 of the second inclined guide member 56 and the engagement hole 48a of the second installation recess 48 is released, and the second inclined guide member 56 is moved forward to The second inclined guide member 56 can be removed from the second installation recess 48 simply by releasing the engagement between the locking piece 59 and the engagement groove 48 b. That is, the second inclined guide member 56 can be easily attached to and detached from the second installation recess 48.

  The first inclined guide member 50 that supports the middle frame 12 alone when the middle frame 12 is opened and closed, and the second inclined guide member 56 that supports the open end side where the hanging of the middle frame 12 is the largest As the opening and closing of the middle frame 12 is repeated, wear such as scratches and scrapes is likely to occur. In the embodiment, as described above, each of the first inclined guide member 50 and the second inclined guide member 56 is formed as a separate member from the curtain plate 44 of the lower frame member 40. Since the first installation recess 47 and the second installation recess 48 are configured to be detachable and replaceable, only the first inclined guide member 50 and the second inclined guide member 56 in which wear such as scratches or scraping has occurred are provided. It can be exchanged, and cost and waste can be reduced.

  By the way, in the pachinko machine 10 according to the embodiment, when the player operates the handle member 17 to launch the pachinko ball into the game area 13a of the game board 13 and the game is started, based on a predetermined control condition. Medium and low sounds are output from the speaker unit 19 provided in the middle frame 12, and high sounds are output from the speaker unit 130 provided in the front frame 14. The speaker unit 19 has a first output hole 32a of the first box-shaped portion 28 (lid 32) in the first space S1 of the first box-shaped portion 28 provided in the lower left portion of the middle frame 12. The output unit 19a is accommodated in a state exposed to the front surface. The first box-shaped portion 28 has a part of the first space S1 opened to the back side of the middle frame 12 through the first connection port 30 opened in the housing main body 29, and the middle frame 12 is closed. In this state (that is, a state where a game is performed), the second frame is connected to the second connection port 71 of the first duct D1 formed in the lower frame member 40 of the outer frame 11. The first duct D1 communicates with the second space S2 of the second box-shaped portion 78 formed in the lower frame member 40, and the second space S2 is provided in the second space S2. It communicates (opens) to the front side of the pachinko machine 10 via the two ducts D2.

  That is, the sound effect output from the front surface of the output portion 19a in the speaker unit 19 is directly output to the player side through the first output hole 32a of the first box-shaped portion 28, whereas the speaker unit 19, the sound effect output from the back surface of the output portion 19a passes from the first space S1 of the first box-shaped portion 28 through the first duct D1, the second space S2, and the second duct D2. Is output. That is, in the pachinko machine 10 according to the embodiment, the path of the sound effect output from the back surface of the output unit 19a in the speaker unit 19 is formed in a so-called double bass reflex structure. Accordingly, the sound effect output from the back surface of the output unit 19a in the speaker unit 19 is enhanced in the low frequency range in the process from the first space S1 through the first duct D1 to the second space S2, and Since the bass range is further enhanced in the process of being output from the two spaces S2 through the second duct D2 to the front side of the pachinko machine 10, the sound spread can be enhanced and the acoustic effect of the pachinko machine 10 can be improved. .

  Here, since the first box-shaped portion 28 is provided in the lower left portion of the middle frame 12, the volume of the first space S1 in the first box-shaped portion 28 is relatively small. On the other hand, the second box-shaped portion 78 is provided with no essential components (a control device, a ball processing mechanism, and other configurations necessary for the execution of the game) to function as the pachinko machine 10. Since the frame member 40 is provided, the volume of the second space S2 in the second box-shaped portion 78 can be increased. That is, by providing the second box-shaped portion 78 in the outer frame 11 below the middle frame 12, the second space S2 defined in the second box-shaped portion 78 is provided in the middle frame 12. The volume of the first space S1 or more defined in the first box-shaped portion 28 can be increased.

  In addition, a first duct D1 is formed on the left end side (first lower connecting bracket 110 side) of the lower frame member 40 (curtain plate 44) corresponding to the formation position of the first box-shaped portion 28. By providing the first box-shaped portion 28 at the lower end portion of the middle frame 12, the projecting dimension of the first duct D1 from the upper surface 49 of the curtain plate 44 in the lower frame member 40 in the outer frame 11 can be minimized. Thus, by reducing the size of the first duct D1 projecting from the upper surface 49 of the curtain plate 44, it is possible to prevent various wires from being caught on the first duct D1 when the middle frame 12 is opened and closed. It is possible to prevent obstructing the opening / closing operation of the middle frame 12. Even if the projecting dimension of the first duct D1 from the upper surface 49 of the curtain plate 44 is reduced, the lateral width of the first duct D1 is increased so that the low-frequency amplification passing through the first duct is increased. The effect is not impaired. In addition, since the curtain plate 44 constituting the second box-shaped portion 78 has the second output hole 76 opened on the right end portion side (the second lower connecting bracket 120 side) spaced from the first duct D1, The length of the second duct D2 extending from the second output hole 76 toward the first duct D1 can be increased. Thereby, the volume of the second duct D2 can be easily formed to be larger than the volume of the first duct D1. And while setting the volume of 2nd space S2 of the said 2nd box-shaped part 78 more than the volume of 1st space S1 of the said 1st box-shaped part 28, the volume of the said 2nd duct D2 is set to the 1st duct D1. By setting the volume or more, the low frequency range of the sound effect (medium / low sound) output from the back side of the output unit 19a in the speaker unit 19 is changed to the first box-shaped portion 28 (first space S1) and the first duct D1. In addition, it is possible to effectively amplify by using the double bass reflex enclosure constituted by the second box-shaped part 78 (second space S2) and the second duct D2, and it is possible to output a richer bass.

  Further, since the first duct D1 and the second space S2 are formed only by assembling the curtain plate 44 and the box cover 80 constituting the second box-shaped portion 78, the first duct D1 and the second space S2 are formed. The space S2 can be easily formed. In addition, the extending piece 84 and the surrounding piece 88 formed in the box cover 80 are configured to enhance the airtightness of the first duct D1 and the second space S2, so the first duct D1 and the second space Sound leakage at S2 can be suppressed, and the lowering of the bass enhancement effect can be prevented. Further, a protruding piece 72 is formed in the first duct D1 (duct first half 70) along the opening edge of the second connection port 71 communicating with the first connection port 30 of the first box-shaped portion 28. Since the protruding piece 72 faces the opening inside the first connection port 30 when the middle frame 12 is closed, the first space S1 and the first duct D1 of the first box-shaped portion 28 The sound leakage between the two is also suppressed, and it is possible to more effectively prevent the enhancement effect of the low frequency range from being lowered.

  Further, the second duct D2 has a first connecting cylinder part 75 communicating with a second output hole 76 formed in the curtain plate 44 inserted in the second connecting cylinder part 91 of the duct member 90, and the box cover. 80 and the curtain 44 are assembled. That is, since the second duct D2 extending in the left-right direction along the curtain plate 44 can be formed by the duct member 90 having a simple shape that opens to the rear and one side, an increase in manufacturing cost can be prevented. Further, by substituting the rear wall of the second duct D2 with the box cover 80 constituting the second box-shaped portion 78, the second box-shaped portion 78 can be made thinner and the rear opening of the duct member 90 is blocked. A lid member becomes unnecessary, and the number of parts can be reduced.

  In addition, the duct member 90 includes a first connecting tube portion 75 inserted into the second connecting tube portion 91 in a positioning step portion 94 formed at a connection position between the second connecting tube portion 91 and the duct body 92. And the first support boss 77 of the curtain plate 44 is inserted into the insertion hole 93a of the second support boss 93 formed in the duct main body 92, so that the duct member 90 can be moved in the front and up / down / left / right directions. Be regulated. In this state, the box cover 80 comes into contact with the rear end edge of the rising wall 92b of the duct main body 92, whereby the backward movement of the duct member 90 is restricted. That is, the duct member 90 can be disposed in the second box-shaped portion 78 without using screws or the like, and the duct member 90 can be easily attached.

[Example of change]
Note that the gaming machine according to the present invention is not limited to the embodiment, and various modifications can be made.
In the embodiment, the first inclined guide member and the second inclined guide member are formed separately from the lower frame member (curtain plate). However, the first inclined guide member and the second inclined guide member are inclined upward toward the rear, You may make it form the 1st inclination guide part and 2nd inclination guide part in which the lower end part of a main body frame can ride at the time of closing integrally with this lower frame member (curtain board).

  In the embodiment, when the lower end portion of the main body frame comes into contact with the inclined surface portion (first inclined surface portion) of the first inclined guide portion when the main body frame is closed, it becomes parallel to the contact portion of the main body frame. Although it formed, it is not restricted to this, You may make it incline upward uniformly uniformly toward the back of the inclined surface part of this 1st inclination guide part. On the other hand, the lower end of the main body frame is closed when the main body frame is closed with the inclined surface portion (second inclined surface portion) of the second inclined guide portion or the inclined surface portion (third inclined surface portion) of the third inclined guide portion. It is also possible to form it so as to be parallel to the contact portion of the main body frame when contacted.

  In the embodiment, the first to third inclined guide portions are provided on the lower frame member (curtain plate). However, at least the first inclined guide portion and the second inclined guide portion may be provided. Moreover, the magnitude | size of the 1st-3rd inclination guide part is not restricted to the thing in an Example. For example, the second inclined guide portion can be formed over the entire length of the upper surface of the lower frame member (curtain plate).

  In the embodiment, the second inclined guide portion and the third inclined guide portion are provided with a support surface portion that supports the lower end portion of the main body frame, but the lower frame member (curtain plate) has the lower end portion of the main body frame. And a main body frame riding on the inclined surface portions formed in the second inclined guide portion and the third inclined guide portion is supported by the support portion of the lower frame member (curtain plate). You can also

  In the embodiment, in each of the first lower connection fitting and the second lower connection fitting, the weight of the second fitting (that is, the second connection reinforcing fitting and the fourth connection reinforcing fitting) formed in an L-shaped cross section is used. The plywood portion is configured to overlap the connecting plate portion of the first metal fitting (that is, the first connecting reinforcing metal fitting and the third connecting reinforcing metal fitting) formed in a U-shaped cross section. May overlap the upper and lower opposing plate portions of the first metal fitting.

  In the embodiment, the support plate portion of the second metal fitting is connected and fixed to the lower frame member (curtain plate). However, the support plate portion and the lower frame member may not be connected and fixed. In the embodiment, the groove portion is formed in the connecting plate portion of the first metal fitting, but the connecting plate portion may be formed in a flat plate shape.

  In the embodiment, the first box-shaped portion that defines the first space is formed by the housing main body and the lid formed on the main body frame, but the first box-shaped portion is formed separately from the main body frame. Then, it may be arranged on the main body frame.

  In the embodiment, the first opening portion opened in the first box-shaped portion is positioned on the hinge bracket side in the main body frame, and the second opening portion opened in the second box-shaped portion is disposed on the open end side of the main body frame. However, the present invention is not limited to this, and the first opening and the second opening may be positioned on opposite sides.

  In the embodiment, the first duct is formed integrally with the second box-shaped part. However, the present invention is not limited to this, and the first duct and the second box-shaped part may be formed separately. In addition, the shape and configuration of the first duct is such that it communicates with the first opening of the first box-shaped part and the second space of the second box-shaped part in a state where the main body frame is closed with respect to the fixed frame. What is necessary is just to comprise.

  In the embodiment, the projecting piece formed along the opening edge of the second connection port opened in the lower frame member (curtain plate) is formed in the first box-shaped portion when the main body frame is closed. Although it is configured to face the inside of the opening of the connection port, a packing may be further arranged along the opening edge of the second connection port. That is, when the main body frame is closed, the projecting piece is made to face the opening inside the first connection port opened in the first box-shaped portion, and the packing is brought into contact with the rear surface of the first box-shaped portion. Thus, the airtightness of the first and second connection ports communicating with each other can be further improved. The packing may be disposed along the first connection port opened in the first box-shaped portion.

  The second duct provided in the second space of the second box-shaped portion is not limited to the configuration of the embodiment, and communicates with the second opening of the second box-shaped portion on one end side and the other end. What is necessary is just to form so that it may open in 2nd space by the part side. For example, the curtain plate of the lower frame member is provided with a second output hole penetrating in the front-rear direction, and a box-like second duct member that opens to the front and to the side on the first duct side is provided with the second output hole. A 2nd duct can also be formed by making the said 2nd output hole face the closed end part side of a duct, and making the back surface of a curtain plate contact | abut to the front open end of the said 2nd duct member. The box cover is formed with a restricting piece for restricting movement of the second duct member in the rear and up / down / left / right directions. When the box cover is assembled to the curtain plate, the restricting piece is a second piece. It is comprised so that it may contact | abut to the duct member of and position. Even in this case, since the second duct can be formed by the second duct member having a simple shape, an increase in manufacturing cost can be prevented. Further, by substituting the front wall of the second duct member with a curtain plate that constitutes the second box-shaped portion, the second box-shaped portion can be thinned and the front opening of the second duct member is blocked. There is an advantage that the lid member becomes unnecessary and the number of parts can be reduced.

  In the embodiment, the rear edge of the rising wall of the duct member is in direct contact with the box cover. However, a packing is disposed between the duct member and the box cover so that the rising wall of the duct member The rear end edge may be configured to indirectly contact the box cover via the packing. Similarly, the front end edge of the rising wall in the second duct member is not limited to the structure in which the front edge of the rising wall directly contacts the lower frame member (curtain plate), but between the second duct member and the lower frame member (curtain plate). A packing may be provided so that the front end edge of the rising wall of the second duct member abuts on the lower frame member (curtain plate) indirectly through the packing. In this way, by interposing the packing, sound leakage from between the duct member and the box cover or between the second duct member and the lower frame member (curtain plate) is prevented, and a low-frequency amplification effect is achieved. Can be prevented from decreasing.

  In the embodiment, a pachinko machine has been exemplified and described as a gaming machine for carrying out the present invention, but the present invention is not limited to this, and the speaker unit is disposed on the main body frame that is freely opened and closed assembled to the fixed frame forming the outer shell. If it is the game machine comprised so, it can employ | adopt suitably also for conventionally well-known various game machines, such as an arrangement ball machine.

Note that the gaming machine according to the present invention can be limited to the specific configuration shown below.
The game machine according to any one of claims 1 to 4, wherein the second inclined guide portion (56) includes an engagement hook (57) protruding rearward from a rear end surface, and the main body frame (12). An extension part (58) extending downward from the inclined front end of the inclined surface part (60) on which the lower end part of the body frame (12) rides, and protruding backward from the lower end part of the extension part (58) A locking piece (59)
On the upper surface of the lower frame member (40), a recess (48) is formed from the upper surface to the front surface of the lower frame member (40) at the position where the second inclined guide portion (56) is disposed.
The engaging piece (59) is inserted into the engaging groove (48b) formed on the front surface of the concave portion (48) so as to be detachable from the front, and is formed at the rear rear position of the concave portion (48). The second inclined guide portion (56) is fixed to the concave portion (48) of the lower frame member (40) by releasably engaging the engagement hook (57) with the engagement hole (48a). The gist is that

  In this way, the locking piece formed on the second inclined guide portion is inserted from the front into the insertion groove of the concave portion formed on the lower frame member, and the engagement of the second inclined guide portion is engaged with the engagement hole of the concave portion. The second inclined guide portion can be fixed to the concave portion of the lower frame member simply by engaging the hook. And since the 2nd inclination guide part can be removed only by releasing engagement with the engagement hole of a crevice, and the engagement hook of the 2nd inclination guide part, attachment or detachment work of this 2nd inclination guide part Can be done easily. Further, since the second inclined guide portion is a separate member, even if the second inclined guide portion is damaged or scraped by opening and closing the main body frame, only the second inclined guide portion can be replaced. .

It is a front view which shows the pachinko machine which concerns on the Example of this invention. It is a disassembled perspective view which shows the pachinko machine which concerns on an Example. It is a principal part expansion perspective view which shows the inner frame which concerns on an Example. It is a perspective view which shows the state which opened the middle frame and looked at the relationship between the middle frame and outer frame which concern on an Example from the back side. It is a perspective view which shows the outer frame which concerns on an Example. It is a disassembled perspective view of the outer frame which concerns on an Example. It is a disassembled perspective view which shows the lower frame member of the outer frame which concerns on an Example. It is a cross-sectional top view of the outer frame which concerns on an Example. It is a perspective view shown in the state where a box cover was removed from a lower frame member concerning an example, and it looked from the back side. It is a vertical side view of the lower frame member which concerns on an Example, Comprising: The state cut longitudinally in the formation position of the 1st duct is shown. It is a cross-sectional top view of the outer frame which concerns on an Example, Comprising: The state crossed in the formation position of a 2nd duct is shown. It is a top view which crosses and shows the 1st box-shaped part of the middle frame closed with respect to the outer frame which concerns on an Example. It is a top view which crosses and shows the 1st box-shaped part open | released with respect to the outer frame which concerns on an Example. The connection structure by the 1st upper connection metal fitting which concerns on an Example is shown, (a) is a perspective view which shows the state which connected the upper frame member and the left frame member with the 1st upper connection metal fitting, (b) is the 1st. It is a disassembled perspective view of 1 upper connection metal fittings. The connection structure by the 1st lower connection metal fitting which concerns on an Example is shown, (a) is a perspective view which shows the state which connected the lower frame member and the left frame member with the 1st lower connection metal fitting, (b) is the 1st. It is a disassembled perspective view of 1 lower connection metal fittings. The connection structure by the 2nd lower connection metal fitting which concerns on an Example is shown, (a) is a perspective view which shows the state which connected the lower frame member and the right frame member with the 2nd lower connection metal fitting, (b) is the 1st. It is a disassembled perspective view of 2 lower connection metal fittings. It is explanatory drawing which shows the relationship between the opening / closing position of the middle frame which concerns on an Example, and the inclination guide member provided in the outer frame, Comprising: The state which open | released the middle frame completely is shown. It is explanatory drawing which shows the relationship between the opening-and-closing position of the middle frame which concerns on an Example, and the inclination guide member provided in the outer frame, Comprising: The lower end part of a middle frame contacts the 1st inclination surface part in a 1st inclination guide member Shows the state. It is explanatory drawing which shows the relationship between the opening-and-closing position of the middle frame which concerns on an Example, and the inclination guide member provided in the outer frame, Comprising: The state which the lower end part of the middle frame contacted the 3rd inclined surface part in a support rib is shown. . It is explanatory drawing which shows the relationship between the opening / closing position of the middle frame which concerns on an Example, and the inclination guide member provided in the outer frame, Comprising: The lower end part of a middle frame contacts the 2nd inclination surface part in a 2nd inclination guide member Shows the state.

Explanation of symbols

11 Outer frame (fixed frame)
12 Middle frame (body frame)
13 game board 13a game area 22 upper support metal fittings (hinge metal fittings)
23 Lower support bracket (hinge bracket, body frame side bracket)
40 Lower frame member 46 Installation part 50 1st inclination guide member (1st inclination guide part)
51 Flat plate portion 52 Projection portion 52a First inclined surface portion (inclined surface portion)
56 2nd inclination guide member (2nd inclination guide part)
60 Second inclined surface portion (inclined surface portion)
62 Support surface portion 65 Support rib (third inclined guide portion)
66 Third inclined surface portion (inclined surface portion)
67 Supporting surface portion 100 First upper connecting bracket (hinge bracket)
110 First lower connection bracket (hinge bracket, fixed frame side bracket)
112b Through hole 110a Lower support shaft (support shaft)

Claims (5)

A fixed frame fixed to an installation frame base, a main body frame pivotally supported with respect to the fixed frame via a hinge fitting, and a detachable arrangement with respect to the main body frame, In a gaming machine equipped with a game board that forms a game area that can flow down,
A first inclination that is provided so as to protrude upward from the hinge metal fitting in the lower frame member of the fixed frame, is inclined upward toward the rear, and the lower end portion of the main body frame can ride on when the main body frame is closed A guide,
A second frame member is provided at a position away from the first inclined guide portion of the lower frame member of the fixed frame, is inclined upward as it goes rearward, and a second lower end portion of the main body frame can ride on when the main body frame is closed. And an inclined guide part,
A gaming machine, wherein the first tilt guide portion is positioned forward of the second tilt guide portion. A fixed frame fixed to an installation frame base, a main body frame pivotally supported with respect to the fixed frame via a hinge fitting, and a detachable arrangement with respect to the main body frame, In a gaming machine equipped with a game board that forms a game area that can flow down,
A first inclined guide portion that is provided on the hinge metal fitting side of the lower frame member of the fixed frame, is inclined upward as it goes rearward, and the lower end portion of the main body frame can ride on when the main body frame is closed;
A second frame member is provided at a position away from the first inclined guide portion of the lower frame member of the fixed frame, is inclined upward as it goes rearward, and a second lower end portion of the main body frame can ride on when the main body frame is closed. An inclination guide of
Provided between the first inclined guide portion and the second inclined guide portion in the lower frame member of the fixed frame and inclined upward toward the rear, and the lower end portion of the main body frame when the main body frame is closed And a third inclined guide portion that can be mounted,
The first tilt guide portion is configured to be positioned forward from the second tilt guide portion, and
Each of the first to third inclined guide portions is such that when the main body frame is closed, the lower end portion of the main body frame first contacts the first inclined guide portion and rides on the first inclined guide portion. The lower end portion of the main body frame is in contact with the third inclined guide portion in the process, and the lower end portion of the main body frame is in contact with the second inclined guide portion in the process of riding on the third inclined guide portion. And
The second inclined guide portion and the third inclined guide portion are inclined upwardly toward the rear, and an inclined surface portion that the lower end portion of the main body frame comes into contact with when the main body frame is closed, and an inclination of the inclined surface portion A support surface portion connected to the rear end and supporting the lower end portion of the main body frame. When the main body frame is closed, the support surface portions of the main body frame are supported by the support surface portions of the second inclination guide portion and the third inclination guide portion. Configured to support the lower end
A gaming machine characterized by that.   On the lower frame member of the fixed frame, an installation portion that protrudes forward is formed on the upper part of the hinge bracket,
  The first inclined guide portion protrudes upward from the flat plate portion in contact with the installation portion, and inclines upward toward the rear, so that the lower end portion of the main body frame can ride on when the main body frame is closed. And a protruding portion formed with an inclined surface portion,
  In the hinge bracket, the fixed frame side bracket disposed on the fixed frame includes a support shaft for supporting the main body side bracket of the hinge bracket disposed on the main body frame and the protruding portion of the first inclined guide portion. An opening that can be inserted is opened, and the first inclined guide portion is sandwiched between the installation portion and the fixed frame side metal fitting in a state where the protruding portion is inserted through the opening, and the fixed frame side metal fitting is The gaming machine according to claim 2, which is fixed to the installation portion. A fixed frame fixed to an installation frame base, a main body frame pivotally supported with respect to the fixed frame via a hinge fitting, and a detachable arrangement with respect to the main body frame, In a gaming machine equipped with a game board that forms a game area that can flow down,
A first inclined guide portion that is provided on the hinge metal fitting side of the lower frame member of the fixed frame, is inclined upward as it goes rearward, and the lower end portion of the main body frame can ride on when the main body frame is closed;
A second frame member is provided at a position away from the first inclined guide portion of the lower frame member of the fixed frame, is inclined upward as it goes rearward, and a second lower end portion of the main body frame can ride on when the main body frame is closed. And an inclined guide part,
The first tilt guide portion is configured to be positioned forward from the second tilt guide portion, and
On the lower frame member of the fixed frame, an installation portion that protrudes forward is formed on the upper part of the hinge bracket,
The first inclined guide portion protrudes upward from the flat plate portion in contact with the installation portion, and inclines upward toward the rear, so that the lower end portion of the main body frame can ride on when the main body frame is closed. And a protruding portion formed with an inclined surface portion,
In the hinge bracket, the fixed frame side bracket disposed on the fixed frame includes a support shaft for supporting the main body side bracket of the hinge bracket disposed on the main body frame and the protruding portion of the first inclined guide portion. An opening that can be inserted is opened, and the first inclined guide portion is sandwiched between the installation portion and the fixed frame side metal fitting in a state where the protruding portion is inserted through the opening, and the fixed frame side metal fitting is Fixed to the installation part
A gaming machine characterized by that.   The first inclined guide portion is formed so that the inclined surface portion of the first inclined guide portion and the contact portion of the main body frame are parallel when the lower end portion of the main body frame contacts when the main body frame is closed. The gaming machine according to any one of claims 1 to 4.

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