JP2002017981A - Game ball launch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a launch device that is durable, compact and easy to assemble by mitigating striking impact and reducing noise. SOLUTION: In the launch device for launching game balls B1 in which a solenoid assembly 100 having a rod 110 to which a plunger 112 is mounted, a solenoid 150 having a cylindrical coil bobbin 151 into which the plunger 112 is loosely fitted are provided, and a casing 120 is mounted to a machine base and a game ball B1 is shot by exciting the solenoid 150, the solenoid assembly 100 having the casing 120, front and rear elastic cushioning plates 130A and 130B mounted to both ends of the casing 120 and where the plunger 112 sits on, front and rear bearing plates 140A and 140B mounted outside the front and rear elastic cushioning plates 130A and 130B and bearing the rod 110 is housed in a housing 200 or 300.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game ball launching device (hereinafter, referred to as a launching device) for a ball game machine such as a pachinko gaming machine or an arrangement ball.

[0002]

2. Description of the Related Art As a launching device for a pachinko game machine, which is a representative example of a ball game machine, there are a motor drive type, a rotary solenoid drive type, and a linear reciprocating solenoid drive type (referred to as a plunger type solenoid drive). The solenoid drive system is compact, has excellent operation reliability and durability, and is widely used as a firing device. This plunger-type solenoid-driven firing device has been disclosed in Japanese Unexamined Patent Publications Nos. 56-8081 and 61-2937.
No. 5, JP-A-6-134090, and in the vicinity, JP-A-8
As shown in JP-A-141150 and JP-A-10-290861, although there are some differences in the structure, the basic configuration is a rod having a hammer at the tip and a plunger attached, and an electromagnetic coil on the peripheral surface. A solenoid having a cylindrical coil bobbin holding the plunger and the plunger loosely fitted therein, a casing holding the solenoid and slidably holding the rod, and a spring member for elastically biasing the rod. Is mounted on a machine base, and the voltage for exciting the solenoid is varied in a pulsed manner, thereby hitting and launching game balls located one by one on the game ball launch table in front of the hammer.

Many improvements have been made to such a plunger-type solenoid-driven firing device, but the firing impact of the plunger cannot be completely absorbed, and the durability is unsatisfactory. This problem has not been completely solved, and the compactness and the assemblability still remain issues.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in response to the above problems, and has been made in view of the above circumstances. Provide equipment.

[0005]

That is, the present invention provides a solenoid having a rod having a hammer tip at the tip and having a plunger attached thereto, and a cylindrical coil bobbin on the peripheral surface of which an electromagnetic coil is held and the plunger is loosely fitted. And mounting a solenoid assembly comprising a casing for holding the solenoid and slidably holding the rod and a spring member for elastically urging the rod rearward, to excite the solenoid. In a launching device that hits and fires a game ball located on a game ball launching table in front of a hammer, a cylindrical casing and elastic cushioning plates attached to both ends of the casing before and after the plunger is seated. And that the solenoid assembly having the bearing plate before and after the front and rear elastic cushioning plates and supporting the rod is housed in the housing. And butterflies.

As a result, when the plunger moves forward and backward, the plunger first comes into contact with the front and rear elastic cushioning plates so as to be seated, so that the impact when the plunger reciprocates is greatly reduced.
In addition, since a rod having a plunger, a coil bobbin for loosely fitting the rod, a cylindrical casing for covering the coil bobbin, a disc-shaped elastic buffer plate and a bearing plate are assembled, the solenoid assembly is easy to assemble. Can be made small and compact.

Further, a plurality of locking claws projecting from both end surfaces of the coil bobbin, and the elastic cladding plate and the bearing plate are simultaneously sewn with the locking claws are more easily assembled and compactness is improved. When the spring member is a compression coil spring having a truncated cone shape interposed between the previous elastic buffer plate and the plunger, the elastic spring can be reliably applied to the plunger and the space occupied by the coil spring during compression can be reduced. .
Further, in the case where the housing sandwiches and fixes the front and rear elastic cushioning plates, since the housing receives an impact through the elastic cushioning plates, the housing and the machine mounting portion are not attached. The impact is reduced, the mounting position of the launching device does not change, and the launching accuracy can be kept high.

[0008] Other features of the present invention and its operational effects will be described in detail in the description of the embodiments.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on one embodiment of the present invention shown in the drawings. FIG. 1 is an exploded top view showing the assembling of a solenoid assembly and a housing according to an embodiment of the launching apparatus of the present invention. FIG. 2 is a diagram showing the solenoid assembly. FIG. 2 (b) is a side view of the solenoid assembly shown in FIG. 2 (a). Hereinafter, for each drawing, a diagram viewed from a direction perpendicular to the machine mounting surface is called a front view, and a diagram viewed from a direction parallel to the machine mounting surface and perpendicular to the rod axis is called a top view (plan view). The view from the rod axial direction is called a side view.

FIG. 3 is a view showing components of a solenoid assembly. FIG. 3 (a) is a left side view of the solenoid, and FIG. 3 (b).
Is a sectional view taken along the line XX of FIG. 3 (a), FIG. 3 (c) is a side view of the casing, FIG. 3 (d) is a front sectional view thereof, and FIG. 3 (e) is a left side view of the front elastic buffer plate. 3 (f) is a sectional view taken along the line YY of FIG. 3 (e), and FIG. 3 (g).
FIG. 4 is a right side view of the front elastic buffer plate.

FIG. 4 is a view showing components of the solenoid assembly. FIG. 4 (a) is a left side view of the front bearing plate, and FIG.
4 (a) is a sectional view taken along the line ZZ, FIG. 4 (c) is a front view of the compression coil spring, FIG. 4 (d) is a left side view of the hammer, FIG. 4 (e) is a front sectional view, and FIG. ) Is a side view of the launch pad rail, FIG. 4 (g) is a top view thereof,
FIG. 4H is a left side view of the rod, and FIG. 4I is a front sectional view.

FIG. 5 is a view showing a base housing, FIG. 5 (a) is a front view, FIG. 5 (b) is a left side view, FIG. 5 (c) is a right side view, and FIG. FIG. 6 (a) is a rear view, FIG. 6 (b) is a right side view, FIG. 5 (c) is a left side view, and FIG. 5 (d) is a bottom view. .

As shown in FIGS. 1 and 2, the launching apparatus according to the present embodiment comprises a solenoid assembly 100 and a solenoid assembly 1.
And a housing fixed to a machine base (not shown). The housing is divided into two parts by a plane passing through a rod axis and parallel to the machine base mounting surface. The cover housing 300 is assembled with the cover housing 300.

The solenoid assembly 100 includes a rod 110, a cylindrical casing 120, front and rear elastic cushioning plates 130A and 130B, front,
It comprises a rear bearing plate 140A, 140B, a solenoid 150 housed in the casing 120, and a compression coil spring 160 on a truncated cone. FIG. 1 shows a connector 170 connected to the solenoid 150.

At the tip of the rod 110 is a mallet 1 made of an elastic material.
11 is attached, and a hollow cylindrical plunger 112 for weight reduction is attached to a central portion (FIGS. 4 (d), 4 (e), and 4).
(h) and FIG. 4 (i)), and the rear end of the rod 110 is cut off in a D shape (see FIG. 2 (b)) to prevent the rod 110 from rotating. The compression coil spring 160 (see FIG. 4 (c)) has its base supported by a recess formed inside the front elastic buffer plate 130A, and its tip abuts on the front end of the plunger 112.
Push the rod 110 backward (rightward in FIG. 2 (a)) via 12
The rear end of the plunger 112 fits on the step inside the rear elastic buffer plate 130B and stops.

As shown in FIGS. 2 (a), 3 (a) and 3 (b), the solenoid 150 comprises a hollow cylindrical coil bobbin 151 formed of plastic and an electromagnetic coil 152. Three flanges 153, 154, 155 are provided on the peripheral surface of the coil bobbin 151.
Are formed, and the electromagnetic coil 15 is provided in the saddle portion formed by the flanges 153 and 154.
2 and magnetic disks 156, 157 are integrally formed on the flanges 153, 154 in a state that they protrude slightly from the periphery in a sandwich shape, and a cylindrical casing 120 made of a magnetic material (FIG. 3 (c) and FIG. 3 (d), and a magnetic circuit is formed between the casing 120, the magnetic disks 156 and 157, and the plunger 112. Therefore, the interval between the magnetic disks 156 and 157 is equal to the length of the plunger 112. Also,
Four locking claws 158 projecting from the front and rear ends of the coil bobbin 151, that is, the front surface of the flange 153 and the rear surface of the flange 155, respectively.
a, 158b, 158c, 158d and 159a, 159b, 159c, 159d are formed.

As shown in FIGS. 3 (e), 3 (f) and 3 (g), the front elastic buffer plate 130A is a plate-like body formed of a hard rubber and having a convex cross section, and has a connector on its peripheral surface. Notch 1 for 170 wiring
31, a central hole 132 for the penetration of the rod 110 in the center, and a stepped recess 13 for receiving the compression coil spring 160 and the plunger 112 inside.
3 and locking claws 158a, 158b, 158c, 15 of the coil bobbin 151
Claw holes 134a, 134b, 134c, 134d through which 8d penetrate are formed. The rear elastic buffer plate 130B is formed symmetrically with the front buffer plate 130A, has the same function, and a description thereof will be omitted.

The front bearing plate 140A is a plastic disk body as shown in FIGS. 4A and 4B, and has a boss seat 141 with a slightly bulged central portion. A hole 142 is opened, and a locking claw of the coil bobbin 151 is provided on the periphery of the boss seat 141.
Claw holes 143a, 143b, 14 through which 158a, 158b, 158c, 158d pass
3c and 143d are formed. The rear bearing plate 140B is a symmetrical shape of the front bearing plate 140A, but in this embodiment, the front bearing plate 140A is symmetrical in the left and right direction.
It has the same shape as the front bearing plate 140A, except that it is shaped like a letter.

The base housing 200 is shown in FIGS.
(b) As shown in FIG. 5 (c) and FIG. 5 (d), a flat portion which has a half-cylindrical concave portion for accommodating the solenoid assembly 100 in the center and serves as a seat for mounting and assembling around the periphery. , And the plastic molded outer shape is a stepped semicylindrical member.
The central recess 201 is provided in the casing 12 of the solenoid assembly 100.
0 and a central concave portion 202 for storing the large-diameter portions of the front and rear elastic buffer plates 130A and 130B, side concave portions 203a and 203b for storing the small-diameter portions of the front and rear elastic buffer plates 130A and 130B, and a front and rear bearing plate 140A and 140B. It comprises side recesses 204a and 204b. A heat radiating hole 202a is provided at the top of the central concave portion 202.

A space 205 in which the hammer 111 of the rod 110 reciprocates is formed in front of the concave portion 201, and a ball stopper eave 206 is formed so as to protrude above the space 205 at a ball firing position. Ball stop eaves 206
An open V-shaped launch pad 207 is integrally formed below the base, and a rail rail 207a on the upper surface of the launch pad 207 has a metal rail 207b (see FIGS. 4 (f) and 4 (g)). ) Is attached.

Flat mounting bases 208 and 209 are formed on both sides of the central recess 201 (convex when viewed from the outside).
At 208 and 209, mounting holes 208c and 209c having pin holes 208a and 209a for positioning, seats 208b and 209b for screws, and claw holes 208d and 209d for mounting a cover housing described later are formed.

The cover housing 300 is shown in FIGS.
(b) As shown in FIGS. 6 (c) and 6 (d), a flat portion which has a half-cylindrical concave portion for accommodating the solenoid assembly 100 in the center and serves as a seat for mounting and assembling on the periphery. Has,
The plastic molded outer shape is a stepped semicylindrical member, has a rectangular planar outer shape excluding the tip end portion of the base housing 200, and the housing portion of the solenoid assembly 100 formed at the center is the same as the base housing 200. It is formed in half-symmetrical shape, and the central concave portion 301 has the same shape as the concave portion 201 of the base housing, and the description is omitted. Flat mounting bases 308 and 309 are formed on both sides of the central recess 301 (convex when viewed from the outside),
Each mounting base 308, 309 has a pin hole 308a, 30 for positioning.
9a, screw mounting holes 308c, 309c, cover housing 300
Are attached to the base housing 200 to form uniting claws 308d and 309d.

When manufacturing, assembling and mounting the above-mentioned launching apparatus, first, each part is manufactured. The coil bobbin 151, the front and rear bearing plates 140A and 140B, the base housing 20
Since the cover housing 300 has a shape suitable for plastic molding, plastic molding is preferable.

As for the assembly and production of the solenoid assembly 100, first, the solenoid 150 is fitted into the casing 120, the plunger 112 is attached, and the compression coil spring 1 is mounted.
The rod 110 with the inserted 60 is inserted into the coil bobbin 151, and the front and rear elastic buffer plates 130A and 130B and the front and rear bearing plates 140
A, 140B, the locking claws 158a, 158b, before and after the coil bobbin 151,
158c, 158d and 159a, 159b, 159c, 159d,
These members are simultaneously fixed so as to pierce and stop.
Finally, the hammer tip 111 is fixed to the tip of the rod 110 to complete the solenoid assembly 100.

Here, the rod 110, that is, the hammer tip 111 is
The rear bearing plates 140A and 140B reciprocately support the front and rear, and at the same time, the rotation of the rod 110 is restricted because the shaft hole of the rear bearing plate 140B matches the D-shape of the rod 110. As described above, since the compression coil spring 160 urges the plunger 112, that is, the rod 110 backward, the rod 110 and the tip 111 are held at the retracted position, that is, the standby position when no external force is applied to the rod 110.

The fitting between the solenoid 150 and the casing 120 can be performed by any suitable method such as bonding, press-fitting, and loose fitting.
In addition, when the plunger 112 and the mallet 111 are attached to the rod 110, an appropriate fixing method such as adhesion or press fitting can be adopted. Further, the order of assembly is not limited to the above-described method, and it is needless to say that a different order can be adopted as needed.

The assembled solenoid assembly 100 is housed in a housing. At this time, the solenoid assembly 100
The front and rear elastic buffer plates 13A and 130B are sandwiched between the front and rear ends of the central concave portion 202 of the base housing 200 and the central concave portion 302 of the cover housing.
Attached and fixed using elastic compression of 0A and 130B. Thus, the positional relationship between the solenoid assembly 100 and the ball stopper 206 or the launch pad 207 of the base housing 200 naturally remains within the designed range, and position adjustment is substantially unnecessary.

When assembling the housing, the solenoid assembly 100 is mounted on one of the housings, and then the united claws 308d, 309d of the cover housing 300 are inserted into the claw holes 208d, 209d of the base housing 200, and the cover housing 3 is inserted.
00 is incorporated in the base housing 200 to complete the launching device. This launching device is fixed in a state of being inclined obliquely upward by screwing the base housing 200 to a predetermined position of the machine base (see FIG. 7 described later). It is mounted and fixed using each positioning pin hole and each screw hole formed in the mounting bases 208, 209, 308, 309.

The operation of launching a game ball in this launching device is performed in synchronism with the ball supply timing of a ball supply device that supplies game balls one by one on a rail 207b of a launch table 207, similarly to the conventional launching device. By controlling the voltage applied to the solenoid 150 in a pulse shape, the plunger 112 of the rod 110 is attracted when the voltage is applied, and the game ball on the launch table rail is hit and fired. An appropriate known technique can be employed for controlling the pulse voltage of the firing device.

In the firing device of the present invention, the impact of the plunger is absorbed since the plunger is seated on the front and rear hard rubber elastic cushioning plates during the firing operation.
Impact is reduced, so durability is improved and noise is reduced. Further, since the solenoid assembly is fixed to the housing via the elastic cushioning plate, the impact applied to the housing is reduced, so that the life of the firing device is improved, the position is not disturbed, and the noise can be reduced. At the same time, the overall components are simple in shape, have few points, are easy to manufacture, are easy to assemble, and are compact. Therefore, the cost can be reduced.

In the above embodiment, since the length of the launch pad is longer than that of the game balls, sometimes two or more game balls are placed on the launch rail, and erroneous firing may occur. For such a problem, the launching device of the embodiment shown in FIG. 7 can be applied. The launching device of this embodiment has a launching table 207A and a launching rail 207Aa having a length corresponding to one game ball, and a foul ball guide 207B disposed below the launching table 207A and the launch rail 207A. Game ball B2 accidentally oversupplied
Are ejected to the game ball B1 already waiting and guided from the foul ball guide path 207B to the foul ball path (not shown) of the machine. As a result, a plurality of game balls do not accumulate on the launch pad, and erroneous firing can be eliminated.

The launching apparatus of the embodiment shown in FIG. 7 is different from the launching table 207A, the launching rail 207Aa, the ball stop eaves 206A and the base housing 200A only in the shape of the above-described launching apparatus. Since there is no difference from the embodiment, the same members are denoted by the same reference numerals as in the previous embodiment, and the detailed description is omitted.

Although two examples have been described above as embodiments of the present invention, the structure and form other than the basic elements such as the configuration of the solenoid assembly and the method of inclusion in the housing are the same as those of the embodiment. Not limited to this, the design can be changed as appropriate according to the requirements of the function, mounting position, space, etc. of the launching device, and an appropriate known technology can be adopted.

[0034]

According to the present invention, there is provided a launching apparatus comprising: a rod having a hammer at a tip and having a plunger attached thereto; a solenoid having a cylindrical coil bobbin on an outer surface of which an electromagnetic coil is held and the plunger is loosely fitted; A solenoid assembly comprising a casing that holds a solenoid and slidably holds the rod and a spring member that elastically urges the rod rearward is attached to a machine base, and a magnet tip is formed by exciting the solenoid. Hit the game ball located on the game ball launch pad in front of
In the firing device that fires, a tubular casing, attached to both ends of the casing, before and after the plunger is seated, a rear elastic buffer plate, and attached to the outside of the front and rear elastic buffer plates, Before the support, the solenoid assembly having the rear bearing plate is housed in the housing, so when the plunger moves forward and backwards, it first comes into contact with the front and rear elastic cushioning plates as it is seated. Be relaxed. In addition, since a rod having a plunger, a coil bobbin for loosely fitting the rod, a cylindrical casing for covering the coil bobbin, a disc-shaped elastic buffer plate and a bearing plate are assembled, the solenoid assembly is easy to assemble. Can be made small and compact.

[Brief description of the drawings]

FIG. 1 is an exploded top view showing assembling of a solenoid assembly and a housing according to an embodiment of the launching apparatus of the present invention.

FIG. 2 is a view showing a solenoid assembly, FIG. 2 (a) is a front sectional view of a solenoid assembly housed in a base housing, and FIG. 2 (b) is a view of the solenoid assembly of FIG. 2 (a). Side view.

FIG. 3 is a view showing constituent members of a solenoid assembly;
FIG. 3A is a left side view of the solenoid, and FIG.
3 (c) is a side view of the casing, and FIG. 3 (d).
Is a front sectional view thereof, FIG. 3 (e) is a left side view of the front elastic cushioning plate, FIG. 3 (f) is a YY sectional view of FIG. 3 (e), and FIG. Right side view.

4A and 4B are diagrams showing other components of the solenoid assembly. FIG. 4A is a left side view of the front bearing plate, and FIG.
FIG. 4A is a cross-sectional view of the ZZ, FIG. 4C is a front view of the compression coil spring,
4D is a left side view of the tip, FIG. 4E is a front sectional view, and FIG.
4 (f) is a side view of the launch pad rail, FIG. 4 (g) is a top view thereof, FIG. 4 (h) is a left side view of the rod, and FIG. 4 (i) is a front sectional view thereof.

5 (a) is a front view, FIG. 5 (b) is a left side view, FIG. 5 (c) is a right side view, and FIG.
(d) is a top view.

6 (a) is a rear view, FIG. 6 (b) is a right side view, FIG. 5 (c) is a left side view, FIG.
(d) is a bottom view.

FIG. 7 is a front view of another embodiment of the present invention when a machine base is mounted.

[Explanation of symbols]

 100 solenoid assembly 110 rod 111 hammer tip 112 plunger 120 casing 130A, 130B front, rear elastic buffer plate 140A, 140B front, rear bearing plate 150 solenoid 151 coil bobbin 152 electromagnetic coil 200 base housing 206, 206A ball stopper eaves 207, 207A firing Table 300 cover housing

Claims (7)

[Claims] 1. A rod having a hammer point at the tip and having a plunger attached thereto, a solenoid having a cylindrical coil bobbin holding an electromagnetic coil on a peripheral surface and loosely fitting the plunger, and
A solenoid assembly comprising a casing for holding the solenoid and slidably holding the rod and a spring member for elastically urging the rod rearward is attached to the machine base,
In a game ball launching device that hits and fires a game ball located on a game ball launch table in front of a hammer by exciting the solenoid, a cylindrical casing, and attached to both ends of the casing, the plunger Before and after seating, a solenoid assembly which is attached to the outside of the front and rear elastic cushioning plates and has a bearing plate before and after supporting the rod is housed in the housing. A game ball launching device. 2. The game ball launching device according to claim 1, wherein a plurality of locking claws project from both end surfaces of the coil bobbin, and the elastic cushioning plate and the bearing plate are attached so as to be simultaneously sewn with the locking claws. 3. The game ball launching device according to claim 1, wherein the spring member is a compression coil spring having a truncated cone shape interposed between a front elastic buffer plate and the plunger. 4. The game ball launching device according to claim 1, wherein the housing sandwiches and fixes the front and rear elastic cushioning plates. 5. The game ball launching device according to claim 4, wherein said housing is divided into two parts by a plane passing through a plunger axis and parallel to a mounting surface. 6. The game ball launching device according to claim 4, wherein a ball launching table is provided integrally with said housing. 7. The game ball launching device according to claim 6, wherein the length of the ball launching table is equivalent to one ball.