JP3000333B2 - Pachinko machine pinching machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game board holding apparatus for holding a game board between a middle frame and a mechanical board, and more particularly to a pachinko game board holding apparatus suitable for assembling a pachinko machine or replacing a game board. Things.

[0002]

2. Description of the Related Art In a game board holding apparatus of this type, a peripheral edge of a game board is brought into contact with a locking step formed on an inner peripheral surface of a middle frame having a storage space formed therein. The game board is stored in the storage space, the mechanism board is further stacked on the middle frame, and each is fixed in a stacked state, whereby the game board is detachably held between the middle frame and the mechanism board, Various types in which the game board is fixed have been proposed in JP-A-5-269247, JP-A-4-32140, JP-A-5-39579 and the like.

[0003]

In the above-mentioned game board holding device, a metal hook piece is provided on the back surface of the middle frame, and the hook piece is placed in a superposed state at a position facing the hook piece on the mechanism plate. Is formed, and a clamp device for engaging with a hook piece is provided on the rear surface of the mechanism plate. By rotating an operation protrusion of the clamp device, the hook piece, the clamp device, Is engaged and released.

[0004] The conventional configuration has the following problems. B) The hook piece is made of a metal piece, which requires screwing work to the middle frame, which makes the assembling troublesome and increases the number of parts by the amount of the metal piece. B) Since the metal hook pieces are inserted into the relatively wide insertion holes, there is no accurate position holding mechanism between the mechanism plate and the middle frame, and loosening tends to occur. C) In a conventional clamping device, a metal part such as a spring rod or a U-shaped link piece is used as an engaging member with a hook piece, which is troublesome in molding and inferior in mass productivity.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the conventional game board holding device and to provide a game board holding device having a new structure capable of holding the game board with one touch. It is.

[0006]

According to a first aspect of the present invention, an engaging edge is provided at the front end of the middle frame.
An L-shaped engaging piece is provided at one of the upper and lower portions, and an L-shaped engaging piece is provided.
Hook pieces are provided on both sides of the
A plate, of approximately equal width to the width of the hooks,該Fu click piece
Form an insertion hole to be inserted, and further on the back of the mechanism plate
A clamping device that is detachably connected to the engaging edge of the hook piece
It is arranged. In this configuration, the L-shaped engagement
The side piece that defines the width is coupled to both sides of the piece, and the hook piece is
The cross section may be substantially U-shaped. Also, an inclined guide surface may be formed on the upper surface of the hook piece, which is inserted into the insertion opening of the mechanism plate, and defines the mechanism plate at an appropriate position at its base end.

Further, in the second means, the clamp device is fixed to the periphery of the insertion port by covering the insertion port by contacting the peripheral edge of the insertion port. A mounting shaft in which a support shaft is formed in the width direction in the internal space, and an operation groove is formed on a peripheral surface thereof; and a bearing cylinder is fitted over the support shaft to form a mounting outer housing. A synthetic resin rotating operation piece, which is rotatably supported in the internal space and has an operation protrusion protruding outward from the operation groove, and a long hole is externally fitted to a bearing cylinder of the rotation operation piece. A locking hook made of synthetic resin, which is provided with a connecting hook engaged with an engaging edge of the hook piece inserted into the outer mounting housing. Form a cam projection on one of the locking pieces,
On the other hand, a cam groove into which the cam projection is fitted is formed, and the linking hook is retreated in the rotation direction from the engaging edge of the hook piece at the starting point of the operation projection. At the end point of the rotation, the linking hook engages with the engaging edge to produce a guiding action.

Here, the first means and the second means are different from each other.
However, the present invention is not limited to the hook frame integrally formed on the back surface of the middle frame, but may be configured by another member such as, for example, the middle frame is made of synthetic resin and the hook piece is made of metal. good.

[0009]

According to the present invention, when the mechanism plates are stacked, the hook pieces are inserted into the insertion holes, and the clamp device attached from the back of the mechanism plate is connected to the hook pieces, and the middle frame and the mechanism plate are loosened. And the game board is pinched. At this time, when the clamp device of the second means is used, the locking piece is moved only by the rotation operation of the operation projection by the guide action of the cam projection and the cam groove, and the locking piece is at the starting point position of the rotation operation piece. It becomes the open position, and becomes the fixed position where the engagement edge and the clamp device are engaged at the end position. Therefore, with one touch,
The middle frame, the mechanism plate, and the game board are detachably held.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

In FIG. 2, 5 is a front frame 3 of the pachinko machine.
A middle frame integrally formed of a synthetic resin material fixed to the back side of the middle frame (see FIG. 4). A support plate 6 is formed below the middle frame 5 and is surrounded by a peripheral frame 7 and the support plate 6. A storage space 2 for the game board 1 is formed inside the game board. The middle frame 5 may be formed integrally with the front frame 3.

The peripheral frame 7 is formed with a locking step 8 for supporting the peripheral edge of the game board 1 along the inside. The depth of the locking step edge 8 is slightly smaller than the thickness of the game board 1. A guide pin 9 is formed at an upper position of the locking step edge 8, and a clip 10 is provided at a center of an upper edge of the support plate 6. The game board 1 is stored in the storage space 2. The lower edge is supported by the upper end surface of the support plate 6, the upper edge and both side edges are dropped onto the locking step edge 8, positioned by the guide pin 9, and the lower edge is clipped by the clip 10. By stopping, the game board 1 is temporarily held in the storage space 2.

Around the storage space 2, four hook pieces 14 are formed on the back surface of the peripheral frame 7 and the support plate 6 in the figure. The hook pieces 14 are formed integrally with the middle frame 5 using a synthetic resin material. The metal material may be integrally formed by means such as pressing.

As shown in FIG. 3, it has a substantially U-shaped cross section, and its upper surface (the lower surface depending on how it is mounted) is formed as an inclined guide surface 15 which is gently inclined downward from above, and hangs downward. An L-shaped engagement piece 16 is provided. This L-shaped engaging piece 16
Is an engaging edge 17. The inclined guide surface 15
A flat surface 18 is formed at the base end of the. Further, side pieces 19, 19 are connected to both sides of the L-shaped engaging piece 16.
From the width of the side pieces 19, 19 and the flat surface 18, the side pieces 19, 19
The height of the hook piece 14 to the lower edge of the hook 19 coincides with the width and height of an insertion hole 24 formed in the mechanism plate 23 described below. Will be worn.

As described above, the inclined guide surface 15 is formed on the upper surface of the hook piece 14, and the flat surface 18 is formed on the base end thereof. For this reason, a supply ball is filled in the upper ball tank of the mechanism plate 23, a large load is applied to the upper portion thereof, and the mechanism plate 23 tends to slightly tilt downward in the open state. The inclined guide surface is raised to the correct position during the fitting process, and the mechanism plate 23 is held in an appropriate state. As a result, the hook piece 14 also has a function of holding the position of the mechanism plate 23.

A mechanism plate 23 is rotatably supported on the middle frame 5 by vertical hinges 22 fixed to one side thereof so as to cover the middle frame 5 from the back. . Various mechanisms such as a ball supply mechanism and a winning ball passage are mounted on the mechanism plate 23.

A rectangular insertion opening 24 is formed in a peripheral edge of the mechanism plate 23 at a position corresponding to the hook piece 14. A box-shaped engaging piece 25 is formed at an upper portion of the insertion port 24, and the linking port 26 faces downward. Further, a fixing boss 27 having a screw hole is formed at a lower portion of the insertion port 24. Thus, the three side surfaces other than the side surfaces of the hinges 22, 22 can be consolidated by the operation of the clamp device 30 described later.

Then, the game board 1 is mounted in the storage space 2 of the middle frame 5 and temporarily held by the clip 10, and the mechanism plate 23 is rotated to place the mechanism plate 23 on the back surface of the middle frame 5. When they are overlapped, the hook piece 14 is inserted into the insertion port 24, and the side pieces 19, 19 and the flat surface 18 come into close contact with the peripheral edge of the insertion port 24 as described above, and the position is determined without loosening. Note that the L-shaped engaging piece 16 is
Since the upper surface except for 8 is gently inclined and generates a guide action, the fitting operation of the hook piece 14 into the insertion opening 24 can be performed smoothly.

After that, a clamp device 30 is attached to the hook piece 14 protruding from the insertion port 24.

The clamp device 30 is provided with a housing 31 outside the mounting.
A synthetic resin rotating operation piece 40 and a synthetic resin locking piece 5
0, and each component will be described in detail as follows.

The outer housing 31 is divided into half cases 32a, 3
2b (see FIGS. 5 and 6) are connected in a butt-like manner, and the inside thereof has an internal space 33 having an open contact side. A mounting projection 34 is provided at the upper end thereof for fitting into the linking opening 26 of the engaging piece 25 from below, and the lower end thereof is fitted with the boss 27 so as to form an insertion hole 35 corresponding to the screw hole. The protrusion 36 is formed. Then, the attachment protrusion 34 is linked to the engagement piece 25, and a screw is screwed into the boss 27 from the insertion hole 35,
The outer casing 31 is fixed to cover the insertion port 24 by abutting on the peripheral edge of the insertion port 24.

The inner space 33 has a support shaft 3 in the width direction.
7, and an operation groove 38 is formed on the peripheral surface in a predetermined angle range around the support shaft 37.

In the internal space 33 of the outer housing 31,
A rotation operation piece 40 (see FIG. 7) is fitted around the support shaft 37. The rotary operation piece 40 includes a bearing cylinder 41 fitted to the support shaft 37, and a cam protruding in a radial direction of the bearing cylinder 41 on an inner surface of a main plate portion 42 coupled to one side surface of the bearing cylinder 41. A protrusion 43 is formed. Further, an arc-shaped rim 44 substantially concentric with the bearing cylinder 41 is formed on the periphery of the main plate portion 42, and a locking projection 45 is formed at a position facing the cam projection 43 inside the rim 44. The locking projections 45 are fitted into positioning grooves 39a, 39b (see FIG. 5) formed on the peripheral surface of the half-shaped case 32a of the outer casing 31 to rotate the rotary operation piece 40 with the starting point. It is positioned at the end point position. The arc-shaped rim 44 extends in the radial direction and is connected to an operation protrusion 46 projecting outward from the operation groove 38.
Further, a lock arm 48 is coupled inward to the operation protrusion 46, and a lock ridge 49 is formed at an inner end of the lock arm 48.

The locking piece 5 is attached to the bearing cylinder 41 of the rotating operation piece 40.
0 long hole 51 is fitted outside. This locking piece 50 has a main plate portion 53 connected to one side of an elliptical ring portion 52 forming the long hole 51, and is engaged with the hook piece 14 inserted into the outer mounting housing 31 on the main plate portion 53. An interlocking hook 54 that engages with the mating edge 17 is formed. A cam groove 56 is formed on the outer surface of the main plate 53 so as to be continuous with the long hole 51. The cam protrusion 43 of the rotary operation piece 40 is fitted into the cam groove 56, and the rotation of the rotary operation piece 40 by a predetermined angle causes an operation of converting the rotational movement into a vertical movement. That is, as shown in FIG. 7, the cam groove 56 includes a rectangular groove surface x into which the cam protrusion 43 fits, and the reduced-diameter arc surface y, and the rotation of the cam protrusion 43 of the rectangular groove surface x. A surface extending from the side contact side surface to the reduced diameter arc surface y is defined as a main cam surface z. Further, a positioning groove 57 into which the lock ridge 49 is fitted is provided on the periphery of the locking piece 50.
a, 57b are formed. Further, a positioning groove 57c into which the locking projection 45 is fitted is formed.

The operation of the clamp device 30 having such a configuration will be described with reference to FIGS.

When the mechanism plate 23 is rotated and the mechanism plate 23 is superimposed on the back surface of the middle frame 5, the hook pieces 14 are inserted into the insertion holes 24, as shown in FIG.
The hook piece 14 is inserted into the internal space 33 of the clamp device 30.

At this time, the rotating operation piece 40 is
5 is the starting point position where it is fitted into the positioning groove 39b.
The cam projection 43 fits into the inside, and the linking hook 54
3, the hook piece 14 is inclined downward, and the hook piece 14 is allowed to enter.

When the operation projection 46 is pushed down from this state, the turning operation piece 40 and the locking piece 50 are connected to the cam groove 56.
The cam projection 43 fits into the rectangular groove surface x, and the lock ridge 49 fits into the positioning groove 57a to generate an appropriate moderating force. This is the intermediate position in FIG. 9 where the hook piece 14 is externally fitted to the L-shaped engaging piece 16 with a margin.

When the operation projection 46 is further pushed down, the engagement piece 50 is moved to
The rotation operation piece 40 rotates by overcoming the moderating force due to the engagement between the lock ridge 49 and the positioning groove 57a, so that the rotation operation piece 40 rotates. The protruding portion 43 tilts and presses the main cam surface z at the side end thereof, whereby the long hole 51 moves along the bearing tube 41 due to the cam guiding action of the main cam surface z, and the locking piece 5
0 moves backward. When the operation projection 46 is further pressed downward, as shown in FIG.
Is separated from the rectangular groove surface x, and its end surface contacts the reduced-diameter arc surface y. At this position, the lock ridge 49 is positioned by the positioning groove 57.
b, and the locking projection 45 is positioned in the positioning groove 57.
c and into the operation groove 38. This is the rotation end point position.

That is, the cam projection 43 and the cam groove 56
That is, the link hook 54 is retracted from the engaging edge 17 at the starting point position (the position in FIG. 8) of the operation protrusion 46, and the link hook 54 is engaged at the rotation halfway position (the position in FIG. 9) of the operation protrusion 46. By rotating the rotary operation piece 40 by a predetermined angle from the position to the rotation end point position facing the mating edge 17, the rotational movement is converted into a vertical movement of the locking piece 50, and the rotation of the rotary operation piece 40 is performed. At the end point position (the position shown in FIG. 10), a guiding action occurs in which the link hook 54 is engaged with the engaging edge 17.

At this rotation end position, the link hook 5
4 presses against the engaging edge 17 and pulls the engaging edge 17 rearward, whereby the abutting surface surrounding the insertion opening 24 of the outer casing 31 presses as a reaction,
The middle frame 5 and the hook pieces 14 are in close contact.

As described above, since the pressing action is performed via the contact surface of the outer housing 31, the pressing area is large, and the deformation of the clamp device 30 due to long-time use is less likely to occur.
In addition, by selecting the shape of the outer casing 31, it is possible to cope with various pressing parts. In addition, the three side surfaces other than the certain side surfaces of the hinges 22 and 22 generate a clamping force by the action of the clamp device 30, and the four peripheral surfaces of the game board 1 are stably held by the middle frame 5 and the mechanism plate 23. Becomes

In this manner, the game board 1 can be held by the middle frame 5 and the mechanism plate 23 in a one-touch manner and held in a stacked state by the action of the operation projection 46. At this time, the depth of the locking step edge 8 formed along the inner side of the peripheral frame 7 is slightly smaller than the thickness of the game board 1, so that a sufficient pinching force acts on the game board 1. Will be done.

Further, when the operation protrusion 46 is pushed upward from the rotation end point position, the rotation operation piece 40 rotates the cam protrusion 43 with respect to the cam groove 56 to be positioned on the rectangular groove surface x. 8 to return to the starting position shown in FIG.
Is located at a position inclined downward, and the mechanism plate 23 can be opened.

In the above-described embodiment, a spring may be applied between the rotating operation piece 40 and the locking piece 50 to urge the link hook 54 in the direction of engagement with the engaging edge 17. good.

[0036]

According to the first means of the present invention, a middle
On the back of the frame, place an L-shaped engagement piece with the tip as the engagement edge.
Provided on one of the lower part, and width defined on both sides of L-shaped engaging piece
A hook piece formed by coupling pieces is provided, and the hook is attached to the mechanism plate.
Through which the width substantially equal to the width of the strip, is 該Fu click piece is inserted
Because the mouth is formed, when the mechanism plate is overlaid, the front
The hook piece is inserted in a tightly defined width direction,
The frame and the mechanism plate are joined without looseness.

Here, a substantially U-shaped cross section having side pieces on both side surfaces
In the case where a hook-shaped piece is provided, the side piece becomes a width-defined piece.
You.

In the first means, when an inclined guide surface for holding the mechanism plate at an appropriate position is formed at the base end on the upper surface of the hook piece, the mechanism plate is supplied to the ball tank above the mechanism plate. The ball is filled, a large load is applied to the upper part, and the mechanism plate tends to slightly tilt downward in the open state, but is raised in the normal position by the inclined guide surface in the fitting process,
The mechanism plate is maintained in an appropriate state.

In the second means, the locking piece is brought into the open position at the starting point of the rotating operation piece only by the turning operation of the operating protrusion by the guiding action of the cam projection and the cam groove. , At the end point position, a fixed position where engagement between the engagement edge and the clamp device occurs. Thus, the middle frame, the mechanism board, and the game board are detachably held by one touch. Further, since the synthetic resin locking piece is used for the linking mechanism, both the rotating operation piece and the locking piece can be formed by molding with a synthetic resin material, which is inexpensive and excellent in mass productivity.

[Brief description of the drawings]

FIG. 1 is a rear view of a pachinko machine.

FIG. 2 is a rear view of the middle frame 5;

FIG. 3 is an exploded perspective view of a main part.

FIG. 4 is a cross-sectional plan view of a main part.

FIG. 5 shows a half case 32a of the outer housing 31;
Is a side view and B is a front view.

FIG. 6 is a view showing a half case-shaped case 32b,
Is a rear view and B is a side view.

FIG. 7 is a side view showing the rotating operation piece 40 and the locking piece 50 separately.

FIG. 8 is a perspective view showing a starting point position of the clamp device 30.

9 shows an intermediate position of the clamp device 30, wherein A is a longitudinal side view, and B is a transparent view.

FIG. 10 shows a rotation end position of the clamp device 30;
Is a longitudinal sectional side view, and B is a transparent view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Game board 2 Storage space 5 Middle frame 8 Locking step edge 14 Hook piece 16 L-shaped engagement piece 17 Engagement edge 18 Flat surface 19, 19 Side piece 23 Mechanism plate 24 Insertion opening 25 Engagement piece 30 Clamping device 31 Mounting Outer housing 33 Internal gap 37 Support shaft 38 Operation groove 40 Rotating operation piece 41 Bearing cylinder 42 Main plate 43 Cam projection 45 Locking projection 46 Operation projection 50 Locking piece 51 Long hole 54 Linking hook 56 Cam groove

Claims (4)

(57) [Claims] 1. A middle frame in which a storage space for a game board is formed inside, a mechanism plate rotatably attached to the middle frame, and an inner peripheral surface of the middle frame formed in the storage space. In a game board holding device of a pachinko machine for holding a game board interposed between a middle frame and a mechanical plate by abutting a peripheral edge thereof on a locking step edge, a front end portion is provided on a rear surface of the middle frame. L shape
Either the upper or lower part has a mating piece, and both sides of the L-shaped engaging piece
Is provided with a hook piece formed by coupling a width defining piece to the mechanism plate,
The hook piece having a width substantially equal to the width of the hook piece is inserted.
The hook is formed on the back of the mechanism plate.
A clamping device for releasably connecting to the engaging edge of the piece;
A game board holding device for pachinko machines. 2. A middle frame in which a storage space for a game board is formed inside, a mechanism plate rotatably attached to the middle frame, and an inner peripheral surface of the middle frame formed in the storage space. In a pachinko game machine pinching device for holding a game board interposed between a middle frame and a mechanism plate by abutting a peripheral edge thereof to a locking step edge, a front end portion is provided on a rear surface of the middle frame. L shape
A hook piece having a substantially U-shaped cross section formed by coupling the side pieces on both sides of the L-shaped engagement piece is provided with the mating piece on one of the upper and lower parts ,
A clamp device having a mechanism plate formed with an insertion opening having a width substantially equal to the width of the hook piece, into which the hook piece is inserted; A game board holding device for pachinko machines. 3. The pachinko machine according to claim 2, wherein an inclined guide surface is formed on an upper surface of said hook piece, which is inserted into an insertion opening of the mechanism plate, and defines a mechanism plate at an appropriate position at a base end thereof. Game machine pinching device. 4. A middle frame in which a storage space for a game board is formed inside, a mechanism plate rotatably attached to the middle frame, and an inner peripheral surface of the middle frame formed in the storage space. A hook piece having a peripheral edge thereof in contact with a locking step edge to sandwich a middle frame and a game board interposed between mechanism plates, and a hook piece having an engagement edge at an end edge on a rear surface of the middle frame. Game machine pinching device for a pachinko machine, comprising: an insertion opening through which the hook pieces pass through the mechanism plate; and a clamp device that is detachably connected to the hook pieces on the rear surface of the mechanism plate. In the above, the clamp device may be fixed to cover the insertion port by abutting on a peripheral edge of the insertion port, and may include an internal space having an open contact side, and support the width direction in the internal space. With the axis formed,
An outer mounting housing having an operation groove formed on a peripheral surface thereof; a bearing cylinder externally fitted to the support shaft, rotatably supported in an internal space of the outer mounting housing, and an operation protrusion formed in the operation groove. A rotary operation piece made of a synthetic resin protruding outward from the housing, and a hook piece inserted and fitted into an outer housing with a long hole fitted to a bearing cylinder of the rotary operation piece. And a locking piece made of synthetic resin having a connecting hook engaged with the mating edge. A cam projection is formed on one of the rotating operation piece and the locking piece, and the cam projection is formed on the other. A cam groove into which the portion is fitted is formed, and the cam projection and the cam groove are connected at the starting point of the operation projection with the link hook retracting from the engagement edge of the hook piece in the rotation direction, and the rotation end point thereof. A pinching machine for a pachinko machine, wherein a guiding action is provided in which the link hook is engaged with an engaging edge at a position.