JPH0810330Y2 - Pachinko machine safe ball receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention pivotally supports a pair of open / close blades on the front surface of a mounting plate and controls the opening / closing by a rotating body that is rotated by a hit ball passing between the open / close blades. The present invention relates to a safe ball receiver for a pachinko machine.

[Conventional technology]

Conventionally, as this type of safe ball receiver,
There is one disclosed in Japanese Patent No. 15188, which will be described with reference to FIGS. 7 to 9. In the figure 101
Is a mounting plate, 102 is a ball inlet formed in the mounting plate 101, 103, 10
3 is a pair of open / close blades pivotally supported on both sides of the front surface of the ball inlet 102 so as to be able to stand and tilt, and 105 is shafts 104, 104 of the open / close blades 103, 103.
A checker is provided on the front surface of the mounting plate 101 so as to cover the lower side, and a box frame 106 is provided on the rear surface of the mounting plate 101.

Inside the box frame 106, a rotating body 107 that controls the standing and tilting of the open / close blades 103, 103 is pivotally supported by a horizontal shaft 108. The rotating body 107 is configured by providing four sphere contact pieces 109 projecting from the center at a substantially equal angle in the radial direction, and engaging walls 110 on both diagonal end surfaces of each sphere contact piece 109. The engagement wall 110 intervenes between the opening and closing blades 103, 103, thereby
Hold its upright position as shown by the solid line, and open / close wing pieces 103, 10
When a portion without the engagement wall 110 intervenes between the three, it functions to cause its tilting as shown by the chain line in FIG.

Further, the bottom wall 111 portion of the box frame 106 is inclined downward toward the rotating body 107, and a rolling ball 112 is freely floodably enclosed inside thereof. The rolling balls 112 intervene between the two ball contact pieces 109 on the rear surface of the rotating body 107 and apply weight to prevent the blinding of the rotating body 107 and stop and brake the correct position. When the rotating body 107 rotates, it is pushed by the ball contact piece 109 and temporarily retracts to the rear of the box frame 106 as shown by the chain line in FIG. 8, and when the ball contact piece 109 passes, the bottom wall 111 descends. By the inclination, it quickly returns to the original position and brakes the rotating body 107.

[Problems to be solved by the draft]

By the way, in such a conventional safe ball receiver, if the rotating body 107 rotates vigorously or the rolling ball 112 does not smoothly escape rearward, the rolling ball 112
Is carried upward by the ball contact piece 109 and bites into the space between the upper wall of the box frame 106 and the rotating body 107, as shown by the solid line in FIG. 9, and disables the predetermined operation of the safe ball receiver. There was a problem to do.

[Means for solving the problem]

The present invention is to solve the above-mentioned problems, in which a pair of opening and closing wing pieces that are free to stand and tilt are pivotally supported on the front surface of the mounting plate, and a box frame is provided on the rear surface of the mounting plate. A rolling ball that rotates inside by contact of a hitting ball passing between the opening and closing blades to control the standing and tilting of the opening and closing blades and that contacts the rear surface of the rotating body to prevent blind movement thereof. In the save sphere receiver in which the above is enclosed, a protruding portion with which a rolling ball can contact is provided in a space portion between the upper wall in the box frame and the rotating body.

Alternatively, the mounting plate and the box frame may be formed separately, and the projecting portion may be formed on the mounting plate.

[Action]

Due to the formation of the protruding portion, even if the rolling ball is carried upward by the rotating body, the rolling ball comes into contact with the protruding portion and immediately falls onto the bottom wall of the box frame. This completely prevents the rolling ball from biting into the space between the upper wall of the box frame and the rotating body.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway front view of a safe ball receiver according to the present invention, FIG. 2 is a side view of a central longitudinal section, and FIG. 3 is an exploded perspective view.

In the figure, 10 is a mounting plate, 20 is a box frame, and 30 is a checker, which are formed separately from synthetic resin.

The mounting plate 10 is provided with a ball entrance 11 at the center, and support pins 32, 32 described later on both sides of the ball entrance 11, fitting blind holes 12, at the rear end,
12 and rectangular through holes 13 and 13 are provided. Further, semicircular bearing recesses 14 and 14 are formed on both sides of the ball inlet 11 on the back surface of the mounting plate 10, and an engagement piece 15 is formed at an upper position of the ball inlet 11. The engagement piece 15 is provided with an upward locking claw 15a at the rear end. Further, rib walls 16 and 16 are formed on both outer sides of the through holes 13 and 13. The rib walls 16 are for preventing the box frame 20 from rattling in the horizontal direction. In addition, 17 and 17 are circular holes for exposing the lamp from the rear of the mounting plate 10.

The box frame 20 has an engagement portion 21 formed at the front edge portion at the center of the upper wall. The engaging portion 21 is provided in a recess 21 in which the engaging piece 15 fits.
It is composed of a and an opening hole 21b into which the upward locking claw 15a is locked. In addition, leg portions 22 and 22 protruding laterally are integrally formed at the lower portions on both sides of the box frame 20. The leg portions 22 and 22 are formed in a shape as viewed from the front with an insertion space for the arm rods 33 and 33 of the checker 30 described later, and the side surfaces of the upward sides 22a and 22a thereof contact the rib walls 16 and 16. Selected to meet. Note that 23
Is a locking piece for holding a lamp substrate (not shown).

The checker car 30 has support pins 32, 3 inside the front plate 31 thereof.
2 are integrally formed. In addition, elongated arm rods 33, 33 that project backward and have elasticity are formed on the rear edge. An outward bent portion 33 is formed at the rear end of the arm rod 33, 33.
a and 33a are formed.

40, 40 are a pair of open / close blades, which are formed in a hollow shape with an open rear surface, and through which the insertion holes 41, 32 of the support pins 32, 32 are formed in the lower part thereof.
41 are provided.

Reference numeral 50 is a rotating body that controls the standing and tilting of the open / close blades 40, 40. In this embodiment, the rotary body 50 includes four ball contact pieces 51 protruding from the center at a substantially equal angle in the radial direction, and engaging walls 52, 52 on both diagonal end surfaces of each ball contact piece 51. The engaging walls 52, 52 maintain their uprightness by intervening between the opening / closing blade pieces 40, 40, and a portion without the engaging walls 52, 52 is formed between the opening / closing blade pieces 40, 40. It has a well-known structure that causes its tilting when intervening. Reference numeral 55 is a rolling ball enclosed in the box frame 20 to prevent blind motion of the rotating body 50. Further, the bottom wall 20a of the box frame 20 is formed in a downwardly inclined shape toward the rotating body 50.

Then, the horizontal shaft 54 is passed through the shaft hole 53 of the rotating body 50.
Both ends of 54 are fitted into the bearing recesses 14, 14 of the mounting plate 10, and then the front edge of the box frame 20 is brought into close contact with the back surface of the mounting plate 10 to engage the engaging pieces.
The upward locking claw 15a of 15 is locked in the opening hole 21b. In addition, the support pins 32, 32 of the chuck car 30 are inserted into the insertion holes 41, 4
1 through the arm rod 33, 33 of the checker 30 from the front of the mounting plate 10 through the through holes 13, 13 and the bent portions 33a, 33a of the box frame.
The legs 22, 22 of 20 are locked to the rear edges. As a result, the mounting plate 10, the box frame 20, and the checker 30 can be integrally combined without the need for screw fastening.

Therefore, in the present invention, the upper wall and the rotating body in the box frame 20 are
A protrusion 56 with which the rolling ball 55 can come into contact is formed in a space between the protrusion 50 and the space. In the case of this embodiment, the projecting portion 56 is configured by projecting projecting pieces 561 and 561 in parallel at intervals smaller than the diameter of the rolling ball 55. Further, the projecting portion 56 contacts the projecting portion 56 and falls onto the bottom wall 20a as shown by the chain line in FIG. 4 when the rolling ball 55 is carried on the ball contact piece 51 of the rotating body 50 and carried upward. So that position is chosen. In the safe ball receiver of the above embodiment, the mounting plate 10 and the box frame 20 are described as being formed separately, but the mounting plate 10 and the box frame 20 are integrally formed. May be.

5 and 6 show another embodiment of the present invention. In this embodiment, the protrusion 56 is formed on the lower surface of the engagement piece 15 of the mounting plate 10. The other structure is the above-mentioned third.
This is exactly the same as the illustrated embodiment. With this structure, the protrusion 56 can be easily molded.

[Effect of device]

As described above, according to the present invention, since the projecting portion that allows the rolling balls to come into contact is provided in the space between the upper wall of the box frame and the rotating body, the rolling balls are in contact with the rotating body. Even if it is carried on one side and brought up, it will contact the protrusion and immediately fall on the bottom wall of the box frame,
There is no possibility that the rolling balls will bite into the space between the upper wall in the box frame and the rotating body, and thereby the safe ball receiver can be operated accurately.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a partially cutaway front view, FIG. 2 is a central longitudinal side view, FIG. 3 is an exploded perspective view, FIG. 4 is an operation explanatory view, and FIG. FIG. 6 is a rear perspective view of a mounting plate showing another embodiment of the present invention, FIG. 6 is a sectional view of an essential part showing the relationship between the mounting plate and the box frame, and FIGS. Is. 10 …… Mounting plate, 15 …… Engaging piece, 20 …… Box frame, 21 …… Engaging part, 40,40 …… Opening and closing blade piece, 50 …… Rotating body, 55 …… Rolling ball, 5
6 ... Projection.

Claims (2)

[Scope of utility model registration request] 1. A striking ball which rotatably supports a pair of opening / closing wing pieces which are free to stand and tilt on the front surface of a mounting plate, a box frame provided on the rear surface of the mounting plate, and which passes between the opening / closing wing pieces inside the box frame. Safe ball receiver which is rotatably supported by the contact of the rotating body to pivotally support a rotating body for controlling the standing and tilting of the opening and closing blade, and which encloses a rolling ball which contacts the rear surface of the rotating body and prevents its blind movement. The safe ball receiver of a pachinko machine according to claim 1, wherein a projecting portion with which a rolling ball can contact is provided in a space portion between the upper wall in the box frame and the rotating body. 2. A mounting plate and a box frame are formed as separate bodies, an engaging piece is provided on the back side of the mounting plate, an engaging portion is provided on the upper wall of the box frame, and the engaging piece is engaged. The safe ball receiver of a pachinko machine according to claim 1, wherein the mounting plate and the box frame are united by engaging with the joint portion, and a protrusion is formed on the lower surface of the engaging piece.