JPS6210669B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ambiguous motion absorption mechanism for a safe ball socket for a pachinko machine, and its purpose is to absorb a mounting board that is nailed to the surface of a pachinko machine, as shown in the conventional example in FIG. Below both sides of the opening, a pair of left and right movable wing pieces are pivoted so that they can stand up parallel to each other or tilt in an inverted diagonal shape, and a front plate and a lower socket are provided, and a guide frame is provided at the rear of the rear board. a balance-shaped actuating piece is swingably supported in the frame, the movable wing piece and the actuating piece are configured to operate in conjunction with each other, and the safe ball socket can be moved in two wide and narrow modes. Directly below the actuating piece, which is based on the receptacle main body and forms a locking step on the lower surface, there is a slight gap so that either the beak part of the front end part or the rear end part can come into contact with it. The actuating piece is pivotally supported directly below the pivot axis, and a tongue-shaped ball receiving piece extending from the front end facing the lower socket is provided, and when the actuating piece is moved in elevation, the beak portion engages with the locking step. A known safe ball receptacle configured to lock the actuating piece to maintain the elevational state of the actuating piece has an interlocking pin 18 protruding from one side of the rear end of the actuating piece 7 that is operated in conjunction with another back interlocking mechanism. If a complicated mechanical linkage mechanism is used, it is impossible to completely avoid the ambiguous operation in which the initial movement to the interlocking pin 18 alone cannot be used as a complete activation command. It is a problem to properly set the operating point of the variable ball receptacle body in two types, wide and narrow, and it is extremely difficult to completely prevent malfunctions with only mechanical configuration without relying on other components such as magnetic force. This is well known in the industry. For this reason, it is necessary to provide a slight play to absorb the ambiguous movement in the overall assembly accuracy of the ball socket body, which unnecessarily obstructs the purpose of improving the assembly accuracy of the ball socket body. However, in view of the fact that malfunctions cannot be completely prevented, the present invention clarifies the operating point of the actuating piece by combining an ambiguous movement absorption mechanism with the actuating piece so as to operate it in conjunction with the actuating piece. This has been improved to ensure proper operation while improving the assembly accuracy of the mouthpart body as much as possible.

Embodiments of the present invention will be described with reference to the attached drawings. First, a conventional example will be outlined. Reference numeral 1 is a conventionally known safe ball socket device body, and an opening in a mounting board 2 that is nailed to the surface of a pachinko machine. A pair of left and right movable wing pieces 4, 4' are pivoted to the lower side of both sides of the section 3 so as to be able to rise and fall from parallel standing to tilting in an inverted C shape, and a front decorative plate 5 that supports the movable wing pieces is attached to a lower socket. After integrally molding with the part 6, it is fixed to the mounting board 2, and a guide frame 9 is formed at the rear of the board, and a scale-shaped actuating piece 7 is swingably pivoted 8 in the air inside the frame. A lock plate 10 is swingably supported with a slight gap just below the lever-shaped actuating piece 7 which is pivotally supported at 9, and is pivoted approximately on the vertical axis line 11 with respect to the pivot portion 8 of the actuating piece. When the piece 7 rotates rearward, the lock plate 10 engages at the top dead center of the elevation angle to maintain the elevation position. This lock plate 10 has a beak 15 of the front end 13 and a rear end 14 that engage with a locking step 12 formed in the bottom in front of the shaft support 8 of the actuating piece 7. It faces the corresponding bottom surface of the actuating piece 7 so as to be able to come into contact with it, and has a leg portion 16 extending below the front end.
A tongue-shaped ball receiving piece 17 is integrally molded from the front end of the leg, and the ball receiving piece faces the inside space of the lower socket part 6 on the front surface of the mounting board 2 in a state of intrusion. Reference numeral 18 designates an interlocking pin that projects from below the guide frame 9 on one side of the protective wall portion 19 at the rear end of the actuating piece 7.

The present invention is based on the above-mentioned known mechanism, and the ambiguous motion absorbing mechanism section 20 is configured as follows. At the rear end of the protective wall part 19 integrally formed on one side of the actuating piece 7, a longitudinally elongated hole 21 is bored, and a bearing protrusion 22 of the actuating piece pivot part 8 is inserted coaxially with the interlocking pin 18 on the inside of the rear end. An engaging pin 24 is provided to fit into the elongated hole 21, and an interlocking ram 23 having a hole 25 formed slightly forward of the center is fitted so as to be swingable. On the other hand, the side end of the front end portion 13 of the lock plate 10 is attached to the front end of the interlocking lever 23 at the limit of the forward swing range of the engagement pin 24 in the elongated hole 21 using the bearing protrusion 22 of the pivot portion 8 as a fulcrum. As the interlocking pin 18 is pushed up further, the interlocking lever 23 comes to push down the front end 13 of the lock plate. Now, as shown in FIG. 1, when the movable wing pieces 4, 4' are raised, the safety ball that entered from above causes the rear end of the actuating piece 7 to move downward, and accordingly, the lock plate 10
When the rear end portion 14 is pushed down and turned into an elevation position by the action of the safety ball, the movable wing pieces 4, 4' are tilted as shown in FIG. 2, and the front end beak portion 1 of the lock plate 10 is
5 meshingly engages with the locking step portion 12 of the actuating piece 7, and the second
As shown in the figure, if the elevation angle posture is maintained and the movement command of the actuating piece 7 is requested from the rear end side of the actuating piece 7, that is, the interlocking pin 18 is engaged with other back part mechanisms, and the operation command is complete. In the ambiguous motion absorbing mechanism 20 provided on one side of the actuating piece 7, the engaging pin 24, which operates integrally with the upward movement of the interlocking pin 18 fitted into the rear end longitudinal hole 21 of the actuating piece 7, is a bearing protrusion. 22 as a fulcrum, the interlocking lever 23 rotates forward by itself, and after the engagement pin 24 contacts the upper edge of the vertically elongated hole 21, it rotates forward together with the actuating piece 7, and at the same time, the lower front end of the lever moves forward. Side end 1 of front end 13 of lock plate 10
3' and is pushed down by its rotational force, the beak 15 that meshes with the locking step 12 of the actuating piece 7 is released, and the movable blades 4, 4' are tilted as shown in FIG. The ball entrance changes in two ways, wide and narrow, just like when a safe ball enters during posture. Here, if the operation command from the interlocking pin 18 is an ambiguous operation, the operating piece 7 is completely out of operation at the higher position of the vertically elongated hole 21, and only the interlocking lever 23 moves slightly to absorb the movement. Therefore, the operating point can be set or changed using the vertical hole 21.
This can be determined by calculating the relationship between the length of the interlocking lever 23 and the side end 13' of the front end 13 of the lock plate 10. FIG. 4 shows another embodiment of the ambiguous motion absorption mechanism section 20 shown in FIG. This is to increase the contact area, but the gist remains unchanged.

The present invention has the above-mentioned configuration, and when the conventional actuating piece 7 with a locking mechanism is configured to operate the interlocking pin 18 protruding from the rear end in conjunction with the mechanism related to the rear part, the actuating piece 7 avoids ambiguous operation. Therefore, a slight movement play was required during assembly, but by incorporating the ambiguous movement absorbing mechanism part 20 on one side of the actuating piece 7, the operating point of the actuating piece 7 can be clearly defined, so the ball socket body 1. Assembling accuracy can be pursued as much as possible, and the width variation of the ball socket can be optimized.
This will completely eliminate malfunctions. Furthermore, since the ambiguous motion absorbing mechanism 20 has a simple structure, it is possible to change or set the operating point in several different designs, and it can be incorporated into one side of the operating piece 7 in the conventional ball socket body 1 This invention has excellent effects such as being able to be made as compact as conventional products.

[Brief explanation of the drawing]

Figures 1 and 2 are longitudinal cross-sectional views of the ball socket when the width changes, Figures 3 and 4 are exploded perspective views showing the ambiguous motion absorption mechanism 20 of the actuating piece, and Figure 5 is a partially cutaway front view. be. FIG. 6 is a longitudinal sectional view showing the principle of a conventional lock mechanism. 1...Safe ball socket body, 2...Mounting board,
3... Opening, 4... Movable wing piece, 5... Front decoration plate, 6... Lower socket, 7... Scale-shaped actuating piece, 8
... Pivotal support, 9 ... Guide frame, 10 ... Lock plate, 11 ... Axial support, 12 ... Locking step, 13
...front end, 14...rear end, 15...beak, 1
6... Leg portion, 17... Tongue-shaped ball receiving piece, 18... Interlocking pin, 19... Protective wall part, 20... Ambiguous motion absorption mechanism part, 21... Longitudinal hole, 22... Bearing protrusion, 2
3... Interlocking lever, 24... Engaging pin, 25... Perforation portion.

Claims (1)

[Claims] 1 The operation of the safe ball socket device main body 1, which allows the safe ball socket to be fixed at the elevational top dead center position of the operating piece 7 by the related operation of the operating piece 7 and the lock plate 10, can be varied in two wide and narrow modes. A vertically elongated hole 21 is bored at the rear end of the protective wall section 19 provided on one side of the piece, an engaging pin 24 interlocking with the interlocking pin 18 is protruded from the inner side of the rear end, and a perforation section 25 is provided slightly toward the front of the center. The interlocking ram 23 is made swingable by coaxially fitting the pivot portion 8 of the operating piece 7 and the perforation 25 so that the engagement pin 24 is fitted into the elongated hole 21.
The front lower end of the lock plate 10 is configured such that the engagement pin 24 contacts the front lower end of the lock plate 10 when the upper edge moves inside the vertical hole 21, and further forward rotation pushes the beak 15 of the lock plate 10 away from the lock step 12. An ambiguous motion absorption mechanism for a safe ball socket for a pachinko machine, characterized in that the operating piece 7 is completely out of action within the vertically elongated hole 21 of the engagement pin 24.