JP2006006825A - Detection switch of pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively protect damage and defacement of a detection switch caused by collision with a falling Pachinko ball and constantly retain in the novel state in the detection switch detecting the Pachinko ball falling through a passing hole. <P>SOLUTION: A switch body 1 having the passing hole 3 of the Pachinko ball is attached with a flange-shaped collision prevention piece 7 in the upper face 4 of the switch body 1 for surrounding an opening part 3a in a ball inlet side of the passing hole 3. The collision prevention piece receives the Pachinko ball falling and colliding with the upper face to avoid its direct collision with the switch body and avoid the damage and the defacement by the impact or the contact. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a detection switch equipped to detect pachinko balls passing through a pachinko machine.

  As is known for pachinko machines, it counts the number of pachinko balls that have entered the prize-winning device, detects the arrival of pachinko balls at the start winning opening for starting the prize winning device and variable display device, Alternatively, many detection switches are used for counting the number of balls received in the prize ball device or counting the number of balls released.

  Some of these detection switches have different detection means such as optical photo switches and proximity switches that use magnetism. However, any of these detection switches can be used, that is, a winning opening, a winning device, or a safe ball. Since it is used to count the number of balls and the number of prize-winning balls, the detection switch is formed into a small, thick plate so that it can be easily assembled at each location. And easy to install.

Conventional detection switches that have been used in the past have the switch body formed into a rectangular plate with a thick wall thickness, and one half of the switch passes through a pachinko ball that penetrates the top and bottom surfaces. A hole is formed, and the other half is embedded with a circuit board or the like in which an electronic element serving as a detection means is incorporated, so that the whole is formed into one chip.
When this detection switch is assembled to a prize opening, a prize winning device, or the like, the end of the side where the passage hole is provided is inserted into a mounting part that is formed in advance in these devices, and the ball of the prize winning mouth or the prize winning device is inserted. The passage hole faces the passage passage, and the pachinko ball falling through the passage passage passage can be set to be detected through the passage hole.

  In this way, the detection switch for detecting the passing ball is formed separately from the winning opening, etc., and is independent. After the winning opening is completed, it is assembled by inserting it into the mounting portion as described above. However, this detection switch has a service life that is much longer than the service life of the pachinko machine, and can be used sufficiently even after the pachinko machine has been used, and is often reused.

  However, one problem with this reuse is that, even though the switch function is not impaired, the pachinko balls that pass through the use process may collide and be damaged, or dirt that adheres to the balls. In other words, there is a problem that the trace of use is left behind and the newness is lost.

Conventionally, as a method for solving this problem, Patent Document 1 proposes and discloses a method of protecting a passing ball detector, that is, a detection switch, assembled in a passing port device corresponding to a winning port.
Japanese Patent No. 3056848, the claims section of the specification, and paragraphs 0004, 0005, 0007, 0013, 0014. 1 and 2 of the drawings.

  As disclosed in the patent document, the detection switch is protected by using a ball passing port 41 (passing hole) of a passing ball detector 40a (detection switch 4) protruding forward of the mounting substrate 21 by taking the passing port device 20a as an example. The decorative cover member 30 covers the peripheral edge of the ball passage opening 41 with a covering portion 35 projecting inward from the entrance opening 33 of the decorative cover member, and passes through the inlet opening 33 to the ball passage opening 41. The hit ball to be passed is prevented from colliding with the edge of the ball passage opening 41, thereby preventing the passing ball detector 40a from being damaged.

  Since the protection measures according to the proposed proposal prevent the pachinko ball from directly colliding with the edge of the detection switch passage hole, it is possible to expect a predetermined effect in avoiding damage. . However, the protection method in the passage port device 20a can be achieved only by cooperating with the decorative cover member 30, and should be carried out at a portion where the decorative cover member 30 is not provided or not provided. The detection switch cannot be protected.

  That is, a detection switch used for detecting the number of passing balls in the middle of the path of the winning ball in a device in which a large number of winning balls jump in as the door opens, such as a large winning opening device Or a detection switch for detecting the number of prize balls released by facing the outlet passage of the prize ball device, or simply detecting the passing ball by attaching it to a starting port equipped with a ball inlet and outlet. It is difficult and structurally impossible to provide a decorative cover member for covering the passage hole of a detection switch used when a variable display device or the like is activated using a signal. It is difficult to do itself.

  In other words, the protection method according to the proposal has a restriction that an independent component member called a decorative cover member must be prepared in addition to the detection switch. As a result, the detection switch cannot be used alone. It has become. Therefore, it cannot be used at all for a detection switch used in a ready-made prize opening, a winning device, a prize ball discharge passage, etc., and cannot be adopted as a protection method for many detection switches that are desired to be reused. It is.

  Therefore, the present invention protects a detection switch for detecting a passing ball from the collision of the pachinko ball in the state of the detection switch alone, and can effectively protect the pachinko ball from damage due to impact or contamination due to contact with the ball. It is to provide a machine detection switch.

  In addition, the present invention protects the detection switch in a single state, so that it can be used as it is in the same manner as a conventional detection switch at a place where the detection switch is used in a pachinko machine. It is an object of the present invention to provide a detection switch that can be reused without loss.

  Of course, the present invention prevents damage and dirt by protecting it from the collision of pachinko balls, so that it can be reused as a new product to prevent a decline in commercial value, and replacement of the protective part as necessary It is an object of the present invention to provide a detection switch that can be reused in a new state at any time.

  In order to achieve the above-mentioned object, the present invention provides a pachinko ball that is formed in a penetrating manner in a switch body formed on a synthetic resin as a base material so as to form a thick rectangular plate. A collision-preventing piece that forms the shape of a collision-protecting cover centering on the passage hole is attached, and the peripheral edge of the opening on the sphere entrance side of the passage hole is covered to protect the detection switch from the collision of the pachinko ball outside the passage hole. There is in doing so.

  The present invention will be described in more detail. In the detection switch of a pachinko machine that detects the passage of a pachinko ball through a passage hole established in the switch body, the switch body has an opening on the ball entrance side of the passage hole. A pachinko ball that collides with the periphery of the opening on the sphere entrance side, and is provided with a collision protection cover provided with a corrugated anti-collision piece that extends toward the outside centering around the passage port. It is an object of the present invention to provide a detection switch for a pachinko machine characterized by protecting the switch body.

  The collision protection cover is formed by molding a synthetic resin, preferably a thermoplastic synthetic resin having the required rigidity and elasticity, such as polyethylene or nylon, and when the switch body is mounted, the ball of the passage hole is used. Entrance side opening (The detection switch is used with the plane of the switch body formed in the shape of a thick plate held horizontally, so the opening above the passage hole that penetrates this plane is a sphere. The peripheral edge of the inlet side opening and the lower opening as the ball outlet side opening, the same applies hereinafter) are covered with a bowl-shaped collision prevention piece to protect against the collision of the sphere.

  The collision prevention piece is formed in a thin plate shape, and covers the periphery of the opening on the sphere inlet side of the passage hole provided in the switch body. And, when the ball falling toward the passage hole goes off the path and collides with the peripheral edge of the opening or the upper surface of the switch body close to the edge, it protects the collision with the direct switch body. Become.

According to the present invention, the passage opening formed in the center of the bowl-shaped collision preventing piece in accordance with the passage hole of the switch body is equal to or slightly smaller in diameter than the opening on the sphere inlet side of the passage hole. The present invention provides a detection switch for a pachinko machine that is formed so as to prevent the pachinko balls from directly contacting the peripheral edge of the passage hole and the inner wall surface of the passage hole.
Here, the passage opening includes a diameter smaller than the diameter of the passage hole of the switch body, but since the passage opening is assumed to pass the pachinko sphere, the diameter is larger than the diameter of the pachinko sphere. Needless to say, it is formed.

  Further, the present invention provides a locking piece extending from the edge of the passage opening of the collision protection cover to the ball outlet side opening along the inner wall of the passage hole of the detection switch. An object of the present invention is to provide a detection switch in which a latching claw formed at the tip is freely engaged with and disengaged from the edge of the opening on the bulb outlet side.

  Still further, the present invention provides a cylindrical second collision preventing piece extending along the inner wall of the passage hole of the switch body from the inner peripheral edge of the passage opening of the collision protection cover to cover and protect the inner wall of the passage hole. An object of the present invention is to provide a pachinko machine detection switch.

  The cylindrical second anti-collision piece prevents the pachinko ball from contacting and polluting the inner wall surface when passing through the passage hole of the switch body, and the collision protection cover is fixed to the switch body. It functions as a means for locking when attaching, and is therefore formed into a cylindrical shape having a diameter approximately equal to the inner diameter of the passage hole so that it can be integrated with the switch body so that it can be closely attached. .

The second anti-collision piece preferably covers the entire inner wall surface of the passage hole, but may cover the middle of the length of the passage hole. Since it becomes possible to prevent a contact, implementation is not prevented.
It should be noted that it is convenient to mount or remove the second collision preventing piece by providing one or more vertical slits from the lower end portion and making the diameter easy to make use of this slit. In particular, when the rigidity is increased by increasing the thickness of the second anti-collision piece, the mounting force increases, but the workability deteriorates, so the use of the slit is effective.

According to the present invention, in providing the second collision preventing piece, the lower end portion is formed to a length that reaches the opening on the ball outlet side of the passage hole of the switch body, and the locking portion is provided on the outer peripheral surface of the lower end portion. Another object of the present invention is to provide a detection switch that can be freely engaged and disengaged to the edge of the opening on the bulb outlet side when it is mounted to prevent it from coming off.

  The locking portion for preventing the slipping may be a claw-like projection protruding from the outer peripheral surface of the lower end portion of the second collision preventing piece, or a hook-shaped projection forming an annular shape over the entire outer periphery of the lower end portion, If the cylindrical shape is reduced in diameter during insertion and does not hinder passage and has a locking force, its shape and size are left to the designer's choice.

Further, the present invention provides a detection switch in which the saddle-shaped collision preventing piece is divided by one or a plurality of slits that are cut in a radial direction around the passage opening so that the saddle-shaped state can be reduced and deformed. is there.
The slit provided in this bowl-shaped collision prevention piece reduces the bowl shape when it is pushed from the opening side of the sphere inlet side toward the opening side of the sphere when the collision protection cover is removed from the switch body. It is intended to facilitate passage and easy disengagement, and is advantageous in a collision protection cover provided with a latching piece hooked on the passage hole or provided with a cylindrical second collision prevention piece.

  Further, according to the present invention, the saddle-shaped collision preventing piece forms two parallel side edges that reach the left and right side surfaces of the switch body, and holds the opposite sides along both side surfaces of the switch body from the both side edges. A pachinko machine detection switch is provided in which a piece is suspended and an inward locking claw is provided at the lower end of the holding piece so that the locking claw can be freely engaged and disengaged from the lower surface of the switch body. There is to do.

  The holding piece provided with the locking claw stably holds the hook-shaped collision prevention piece with respect to the switch body. By providing this holding piece, the hook-shaped collision prevention piece has a passage hole. It will be in the state which covers the upper surface of the surrounding switch main body, and will protect from the collision of a pachinko ball more effectively.

  The detection switch according to the present invention covers the upper surface surrounding the passage hole around the passage hole and the inner wall surface of the passage hole with a collision protection cover, and prevents the passing pachinko balls from directly colliding with or contacting each other. Because of its structure, it can effectively protect against damage caused by the collision of pachinko balls and dirt caused by contact, as well as reducing the function, preventing deterioration in quality, and maintaining the commercial value of the detection switch as it is new can do.

  Since the detection switch of the present invention is integrated with the collision protection cover directly attached to the switch body, it can be handled in the same manner as a conventionally used detection switch. It can be used as it is, and there is a great advantage that it is not necessary to change the structure of a winning opening or the like in order to use this detection switch.

  Of course, the collision protection cover used in the detection switch of the present invention can be manufactured in a large amount and at a low cost by using a synthetic resin as a material, so that it can be manufactured without increasing the cost of the detection switch itself. Since this collision protection cover can be attached and detached, it is possible to obtain a new product by replacing it with a new one when reused, which is extremely advantageous in reuse.

As shown in FIGS. 1 to 3, the detection switch according to the present invention includes a switch body 1 and a collision protection cover 2 attached to the switch body 1.
As shown in the figure, the switch body 1 is made of a synthetic resin as a raw material and is formed in a rectangular plate shape having a thickness and a length in the front and rear, and a through hole 3 through which a pachinko ball passes through one half of the front end side. Is opened from the upper surface 4 to the lower surface 5. A circuit board (not shown) of the magnetic sensor is embedded in the other half, the lead wire 6 is drawn out from the rear end portion, and an annular detector (not shown) is embedded around the passage hole 3. For example, a signal can be transmitted to the game control device that controls the game provided in the pachinko machine, for example, by sensing the passage of the pachinko ball and via the circuit board.

The collision protection cover 2 is formed of a synthetic resin, preferably a thermoplastic synthetic resin having required rigidity and elasticity, and includes a hook-shaped collision prevention piece 7 as a main component.
The collision prevention piece 7 has a passage opening 8 at a position corresponding to the passage hole 3 of the switch body 1 at the center thereof, and the passage opening 8 is aligned with the passage hole 3 and attached to the upper surface 4 of the switch body 1. By doing so, the opening of the passage hole 3, that is, the sphere inlet side opening 3a and the upper surface portion of the periphery of the opening can be covered.

  The passage port 8 may have a diameter that is slightly larger than the diameter of the passage hole 3, but preferably the same diameter or a slightly smaller diameter from the collision of the pachinko ball to the opening on the sphere inlet side. This is advantageous in protecting 3a.

In the embodiment shown here, the diameter of the passage port 8 is made smaller than the diameter of the passage hole 3 by a width corresponding to the thickness of the collision preventing piece 7, and the inner peripheral edge portion is connected to the inner wall surface of the passage hole 3. A cylindrical second collision-preventing piece 9 that reaches the lower-end ball outlet side opening 3b along the bottom is suspended and fitted into the passage hole.
The second anti-collision piece 9 is provided mainly for preventing pachinko balls passing therethrough from contacting the inner wall surface and fouling the passage hole 3, but in addition to being fitted into the passage hole, the collision protection cover 9 It functions to ensure that it is mounted in a stable state, and is formed into a thin cylindrical shape. Details of the implementation will be made clear in the description of the embodiments described later.

  On the other hand, the anti-collision piece 7 in the form of a bowl has a passage port 8 at the center as described above, and both left and right edges extend toward the left and right edges of the switch body 1 and the left and right side edges. 7a and 7a are formed, and holding pieces 10 and 10 that face each other are suspended from both side edges, and the locking claws 11 and 11 are extended inwardly from the lower ends of the holding pieces. It is formed so that the whole shape forms a portal shape.

The collision protection cover 2 configured as described above faces the switch main body 1 with the second collision prevention piece 9 facing directly above the passage hole 3, and is lowered so as to be fitted thereinto. While opening using the elasticity of the material, wrap it in this state.
FIGS. 1 and 3 show the mounted state. The left and right holding pieces 10 and 10 that have been opened once are restored and brought into close contact with both side surfaces of the switch body 1, and the locking claws 11 and 11 provided at the lower end are attached. It is attached to the left and right edges of the lower surface 5 in a stable state.

  When the protective cover 2 is attached, the switch body 1 receives the pachinko ball that falls strongly because the upper surface surrounding the passage hole 3 and the inner wall surface of the passage hole 3 are covered with the respective collision prevention pieces 7 and 9. The anti-collision piece acts as a cushioning material to prevent breakage, and because it prevents contact with the sphere by directly entering the sphere, it can protect against contamination and keep the switch body in a new state at all times. Can do.

The collision protection cover 2 attached to the switch body 1 can be removed by opening the holding pieces 10 and 10 again and removing the locking claws 11 and 11. Therefore, when the collision protection cover 2 is damaged or dirty when it is removed from the winning opening or the winning device and reused, it can be completely restored to a new one by replacing it with a new one.
Therefore, when reused, the detection switch can be regenerated by replacing the collision protection cover, so that it can be reused repeatedly in a new state as long as the detection function is not impaired.

By the way, in the drawing, the holding piece 10 is made wider in accordance with the fact that the collision preventing piece 7 is formed wide in the front and rear direction so as to widely cover the upper surface of the switch body. Therefore, the width and thickness may be selected within a range satisfying this, and therefore the width may be narrowed. In accordance with this, the locking claw 11 may be narrowed,
A protruding shape may be used.
When the detection switch of the present invention is mounted, the entire collision protection cover 2 including the collision preventing piece 7, the holding piece 10, and the locking claw 11 is provided on the surface and the surface of the switch body 1 so that smooth mounting can be performed. It is advisable to form a recess on the surface of the switch body so as to be one.
Next, the detection switch according to the present invention described above will be further described based on each embodiment.

4 and 5 show another embodiment of the present invention disclosed in the above embodiment, and the embodiment shown here is provided at the center of a collision prevention piece 11 formed in a circular bowl shape as the collision protection cover 2. Two locking pieces 13 and 13 are suspended from the inner periphery of the opening 12 to be opened, and an outward locking claw 14 is provided at the lower end of each locking piece, that is, at the tip. Show the case.
In this embodiment, skirts 15 and 15 having a substantially cylindrical shape as a whole are suspended from the inner peripheral edge of the passage opening 12 while avoiding the locking pieces 13 and 13. The skirt 15 is substantially a second collision prevention piece, which will be described later.

  The collision prevention piece 11 of the collision protection cover 2 is formed in a circular bowl shape covering the peripheral edge of the ball inlet side opening 3 a of the passage hole 3 formed in the switch body 1, and the passage port 12 is formed in the passage hole 3. The two locking pieces 13 and the skirt 15 are suspended from the edge so as to reach a spherical outlet side opening 3b along the inner wall surface of the passage hole.

FIG. 5 shows a state in which the collision protection cover 2 configured as described above is mounted on the switch body 1 (the switch body 1 is the same as that described in the previous embodiment). For mounting, the skirts 15 and 15 are inserted together with the locking pieces 13 and 13 from above the passage hole 3, and the locking claw 14 of the locking piece 13 is moved when the collision preventing piece 11 is brought into contact with the upper surface 4 of the switch body. The hook is attached to the edge of the opening 3b on the bulb outlet side.
In this case, the portion of the upper surface 4 with which the collision preventing piece 11 abuts is cut into the thickness of the bowl shape and an annular recess 16 is provided, and the collision preventing piece 11 is fitted into the upper surface and the switch. The upper surface 4 of the main body is flush with the upper surface.

  The collision protection cover 2 configured as described above covers the peripheral edge of the opening on the sphere inlet side of the passage hole 3 of the switch body with the hook-shaped collision prevention piece 11 and covers the inner wall surface with the locking piece 13 and the skirt 15. As a result, as with the detection switch in the above-described embodiment, it is possible to effectively protect against the collision of the pachinko balls and to protect against contamination.

  The collision protection cover 2 is mounted in a stable state since the locking claw 14 is hooked on the opening 3b on the ball outlet side, and is prevented from falling off during use. Further, since it can be easily removed when the locking piece 14 is removed, it is convenient when replacing with a new collision protection cover.

  In addition, in the present embodiment and the embodiments described later, in addition to forming the bowl-shaped collision prevention piece in a circular shape, an annular recess 16 is formed in the upper surface 4 of the switch body 1 that receives it. Is a measure for avoiding the collision prevention piece from protruding from the upper surface 4 of the switch body 1 and avoiding an obstacle when the detection switch is inserted into the winning opening or the mounting portion of the winning device. When the thickness of the recess 16 is increased, the recess 16 functions more effectively.

6 and 7 show a second embodiment in which a cylindrical second anti-collision piece 23 is integrally suspended from a passage port 22 of a bowl-shaped anti-collision piece 21 forming a circular shape of the anti-collision cover 20. It is.
The second collision preventing piece 23 is formed in a cylindrical shape corresponding to the diameter of the passage hole 3 of the switch body 1 and is simply pushed in at the time of mounting, and can be easily utilized by using friction between the outer peripheral surface and the inner wall surface of the passage hole 3. I try not to get out.

Although the collision protection cover 20 in this embodiment has a simple structure and is easy to manufacture, all the parts where the pachinko balls collide are covered by the two collision prevention pieces 21 and 23, so that damage prevention and fouling can be achieved. It is completely inferior in avoiding.
Since this protective cover has a structure that is attached by simply press-fitting the second collision prevention piece, it is convenient for attachment and removal, and has an advantage that it can be easily operated when replaced.

Next, FIGS. 8 and 9 show a third embodiment of the present invention.
In this embodiment, like the second embodiment, the collision protection cover 30 has a circular bowl-shaped collision prevention piece 31 and a cylinder suspended from the inner periphery of the passage opening 32 opened at the center of the collision prevention piece. The second collision prevention piece 33 is formed in a shape, and here, an annular locking portion 34 is provided on the outer peripheral surface of the lower end portion of the second collision prevention piece 33 so that the passage hole 3 of the switch body 1 is formed. This is an example in which the ball exit side opening 3b is latched.

  When the protective cover 30 is attached to the switch body 1, the hook-shaped collision prevention piece 31 is fitted into the recess 16 of the switch body, and at the same time, the second collision prevention piece 33 is attached to the inner wall surface of the passage hole 3. The annular locking portion 34 at the lower end is hooked on the edge of the opening 3b on the bulb outlet side.

  In the figure, reference numeral 35 denotes a slit that vertically cuts the collision prevention piece 31 and the second collision prevention piece 33. The slit 35 is reduced in diameter by utilizing a gap when the collision protection cover 30 is attached and removed. In order to facilitate attachment and detachment work. In addition, since the space | gap by this slit 35 is very small, it does not become a hindrance in impact of a pachinko ball, or contact avoidance.

10 and 11 show a fourth embodiment of the present invention.
In this embodiment, the collision protection cover 40 has a collision prevention piece 41 having a circular bowl shape, and a cylindrical second collision prevention means suspended from the edge of a passage opening 42 opened at the center of the collision prevention piece. In the case of a piece 43 and a hook-shaped locking portion 44 extending from the outer peripheral surface of the lower end of the collision-preventing piece 43 so as to face the hook-shaped collision-preventing piece 41, This is a case where slits 45 and 46 that are cut in the radial direction are formed in the hook-shaped collision preventing piece 41 and the locking portion 44 at appropriate intervals, respectively, and the diameter can be reduced by using the slits.

In this embodiment, the collision protection cover 40 can be attached to the switch body 1 in a more reliable state. At the time of mounting, it is performed by pushing the locking portion 44 into the passage hole 3 of the switch main body 1 while using the slit 46.
The locking part 44 is restored by the elasticity of the material after passing through the opening 3b on the ball outlet side, is locked to the edge of the opening part, and cooperates with the collision preventing piece 41 fitted into the concave part 16 of the switch body 1. A wearing state is secured.

  When the protective cover 40 is removed from the switch body 1, the collision prevention piece 41 can be extracted downward by pushing it into the passage hole 3, and can also be extracted by pulling the locking portion 44 with a reduced diameter. In either case, the diameter is reduced using the slits 45 and 46, and the removal work is performed.

  Although the present invention has been described above for each of the embodiments, each of the collision protection covers 2, 20, 30, and 40 is formed of a synthetic resin having a required rigidity and elasticity. In the case of the structure which does not require large deformation such as reducing the diameter at the time of attachment / detachment, for example, in the case of the first and second embodiments, a synthetic resin material having high rigidity can be used. Therefore, the material may be selected in accordance with the structure at the time of manufacture.

Similarly, the thickness of each of the bowl-shaped collision prevention pieces and the cylindrical second collision prevention piece is selected in order to provide a buffering effect. Since the sphere is received, it is formed slightly thicker than the second collision preventing piece.
However, in any case, since the switch body avoids a direct pachinko ball collision by the collision protection cover, the collision protection cover is formed thin on the premise that the mounting state with respect to the switch body is secured. However, a sufficient effect can be expected.

  Further, in each embodiment, the collision preventing pieces 11, 21, 31, and 41 attached to the upper surface of the switch body are formed in a circular bowl shape, and a limited range of the peripheral edge portion of the spherical inlet side opening 3a of the passage hole 3 However, the pachinko ball falling toward the passage hole 3 is guided in advance until reaching the detection switch, so that a large error does not occur. Therefore, it is sufficient if the peripheral edge of the opening 3a can be covered. It will serve the purpose of protection.

  As described above, when the protective cover is mounted on the switch body, the portion that protrudes from the surface of the switch body may become a hindrance such as a collision with the mounting section when mounted in use, for example, when mounted on a winning device. Therefore, it is advisable to form recesses in the upper and lower surfaces or side portions of the switch body and fit them into the same so that they are flush.

The perspective view of the detection switch which concerns on this invention. The exploded perspective view of a detection switch. AA sectional view taken on the line AA of FIG. The expansion perspective view of the collision protection cover of a 1st Example. The right view of a partial defect explaining the state which attached the collision protection cover to the switch body. The expansion perspective view of the collision protection cover in a 2nd Example. The right view of a partial defect explaining the state which attached the collision protection cover to the switch body. The expansion perspective view of the collision protection cover in a 3rd Example. The right view of a partial defect explaining the state which attached the collision protection cover to the switch body. The expansion perspective view of the collision protection cover in the 4th example. FIG. 5 is a right side view of a partial defect for explaining a state in which the collision protection cover is attached to the switch body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Switch main body 2,20,30,40 Collision protection cover 3 Passing hole 3a Sphere entrance side opening 3b of passage hole 4 Sphere exit side opening of passage hole 4 Upper surface of switch body 5 Lower surface of switch body 7, 11, 21, 21 31, 41 A bowl-shaped collision prevention piece 8, 12, 22, 32, 42 Passage hole 9, 23, 33 Second collision prevention piece 13 Locking piece 14 Locking claw 16 Switch body 16 Recesses formed on the upper surface 35 Slits formed between the bowl-shaped collision prevention piece and the second collision prevention piece 45 Slits formed on the bowl-shaped collision prevention piece 46 Slits formed on the bowl-shaped locking part

Claims (10)

In a detection switch of a pachinko machine that detects the passage of a pachinko ball through a passage hole established in the switch body, the switch body is provided with a passage opening corresponding to the opening on the sphere inlet side of the passage hole. The switch body is protected from a pachinko ball colliding with the periphery of the opening on the ball entrance side by covering and mounting a collision protection cover having a hook-shaped collision prevention piece extending outward in the center. Detecting switch of pachinko machine. 2. A detection switch for a pachinko machine according to claim 1, wherein the passage opening of the collision protection cover is equal to or slightly smaller in diameter than the opening of the ball entrance side of the passage hole of the switch body. 2. A locking piece extending along the inner wall of the passage hole of the switch body from the periphery of the passage opening of the collision protection cover according to claim 1, and the engagement claw formed at the tip of the engagement piece is formed on the ball outlet side opening of the passage hole. A detection switch for a pachinko machine, which can be hooked and disengaged freely. The cylindrical second collision prevention piece extending along the inner wall of the passage hole of the switch body from the inner peripheral edge of the passage opening of the collision protection cover according to claim 1, and covering and protecting the inner wall of the passage hole. A featured pachinko machine detection switch. 5. The detection switch for a pachinko machine according to claim 4, wherein the second collision preventing piece is formed in a cylindrical shape having a length that reaches the opening on the ball outlet side of the passage hole of the switch body. The detection of a pachinko machine according to claim 4 or 5, wherein the cylindrical second collision preventing piece is formed with one or a plurality of slits which are cut in the length direction, and the diameter can be reduced by the slits. switch. 6. The lower end portion of the second collision prevention piece according to claim 5, wherein a locking portion protruding outward is provided, and the locking portion is engaged with or disengaged from an edge portion of the ball outlet side opening of the passage hole of the switch body. A pachinko machine detection switch that can be freely latched on and off. 8. The locking portion formed at the lower end portion of the cylindrical second collision prevention piece according to claim 7 is formed in a bowl shape over the entire circumference of the outer peripheral surface of the lower end portion, and the ball outlet side of the passage hole of the switch body A detection switch for a pachinko machine, which is freely engaged and disengaged at the edge of the opening. The pachinko machine according to any one of claims 1 to 8, wherein the hook-shaped collision preventing piece is divided by one or a plurality of slits that are cut in a radial direction so that the diameter can be reduced. Detection switch. In any one of claims 1 to 8, the hook-shaped collision preventing piece forms two parallel side edges that reach the left and right side surfaces of the switch body, and the switch body has a side edge that extends from the side edges. The holding pieces facing each other are suspended along both side surfaces, and a locking claw is protruded inwardly at the lower end of the holding piece, and the locking claw is hooked freely on the lower surface of the switch body. A detection switch for a pachinko machine characterized by stopping.

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