JP2001246139A - Pachinko ball lifter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the conveyor belt of a Pachinko ball lifter which conveys pachinko balls by putting the balls between a conveyor belt and a guide plate from deviation and to easily correct the track when the deviation is generated. SOLUTION: Projected bars 31 are formed on the outer circumferential face of a tension roller 16A and the outer circumferential faces of the projected bars 31 are made contact faces 32 to be in contact with the surface of a conveyor belt 15. The direction of the axis line of the tension roller 16A is adjustable along the surface of the conveyor belt 15. Thus, the conveyor belt 15 can run in circulation on a constant track. Even if the tack is deviated by influence of a foreign matter, the direction of the axis line of the tension roller can be changed to easily correct the track of the conveyor belt 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus used for recirculating pachinko balls used in a pachinko game machine installed on a pachinko island or the like, and more particularly, to an endless transport belt and its endless belt. The present invention relates to a pachinko ball lifting device that lifts a pachinko ball while sandwiching it with a guide plate facing the surface rising side.

[0002]

2. Description of the Related Art Generally, in a pachinko game arcade, a plurality of gaming machines are installed in parallel on a structure called a pachinko island.
The pachinko balls used in each of the gaming machines are accumulated in the lower central portion of the pachinko island, and the pachinko balls are sequentially transported to the upper portion of the pachinko island and distributed again to each of the gaming machines. In particular, a lifting device for transporting the pachinko balls accumulated at a predetermined place to the upper part is installed in the pachinko island.

[0003] The outline thereof is shown in FIG.
Is an upper roller, R2 is a lower roller, and an endless transport belt B is looped between upper and lower rollers R1 and R2. The lower roller R2 is connected to a driving source M (motor) for driving via a pulley belt or the like, and the conveyance belt B travels in the direction of the arrow shown by the rotation of the lower roller R2 by the activation of the driving source M. It has become. G is a guide plate facing the ascending side of the conveyor belt, and a flow path S through which pachinko balls can pass is formed between the inner surface of the guide plate G and the ascending surface of the conveyor belt B. F is a polishing cloth provided along the inner surface of the guide plate G, and Rt is a tension roller on the descending side of the conveyor belt B for applying tension to the conveyor belt.

According to the pachinko ball lifting device constructed as described above, the pachinko balls accumulated in the lower central portion of the pachinko island are sandwiched between the transport belt B and the guide plate G, and the pachinko balls are polished with the polishing cloth F. It can be distributed to each gaming machine while being lifted.

[0005]

However, according to the conventional pachinko ball lifting device, the foreign matter mixed in the pachinko balls enters the space between the conveyor belt and the tension roller, thereby causing the conveyor belt to move. The running orbit is displaced, and there is a problem that this is broken due to the one-sided deviation, or that the conveyance of the pachinko balls is inferior.

In order to keep the orbit of the conveyor belt constant, there has been an attempt to form a series of ridges on the inner surface of the conveyor belt and to form a groove on the tension roller to be fitted with the ridge of the conveyor belt. At the time of mixing, the ridge easily gets over the groove and does not function sufficiently in preventing the transfer belt from being shifted.

The present invention has been made in view of the above circumstances, and the object thereof is to provide an excellent effect of preventing the transfer belt from shifting, and to correct the trajectory even when the shift occurs. An object of the present invention is to provide a pachinko ball fryer that can be easily achieved.

[0008]

In order to achieve the above object, the present invention comprises an upper roller and a lower roller which are rotatable on both upper and lower sides of a machine frame, and one of which is connected to a driving source for driving. In addition, a pachinko ball provided with a guide plate that wraps an endless transport belt between the upper roller and the lower roller via a tension roller, and interposes the pachinko ball on the rising side of the transport belt in cooperation with the transport belt. The lifting device has a tension roller formed with an annular ridge along a circumferential direction of an outer peripheral surface, and the outer peripheral surface of the ridge is a contact surface that is in rolling contact with the transport belt. To provide a pachinko ball fryer.

In particular, according to the present invention, an upper roller and a lower roller are rotatably provided on both upper and lower sides of a machine frame, one of which is connected to a driving source for driving, and the other is provided between the upper roller and the lower roller. In a pachinko ball lifting and feeding device provided with a guide plate for sandwiching a pachinko ball in cooperation with the conveyor belt on the ascending side of the conveyor belt, an endless conveyor belt is wound around the tension roller via a tension roller. A tension roller in which annular ridges are formed in parallel along the circumferential direction of the pachinko machine, and the outer peripheral surface of each ridge is a contact surface that is in rolling contact with the conveyor belt. A feeding device is provided.

According to a more preferred aspect of the present invention, an upper roller and a lower roller are rotatably provided on both upper and lower sides of a machine frame, one of which is connected to a driving source for driving, and In the pachinko ball lifting device provided with a guide plate that wraps around an endless transport belt via a tension roller between the lower roller and the lower belt, and interposes a pachinko ball in cooperation with the transport belt on the ascending side of the transport belt, A tension roller in which annular ridges are formed in parallel along the circumferential direction of the outer peripheral surface on both sides in the axial direction, and the outer peripheral surface of each ridge is a contact surface that is in rolling contact with the conveyor belt; Is provided with a centering means for changing the direction of the axis of the tension roller having the ridges along the conveyor belt.

Although various modes can be considered as the centering means, preferably, a spindle for rotatably supporting a tension roller having a projection formed on the outer periphery, and one end of the spindle for swingably supporting. And a movable piece that can move up and down to connect the other end of the support shaft, and an adjusting screw that is screwed into the movable piece. It is configured to swing along the surface of the transport belt with the connection portion with the support tool as the swing center.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, FIG. 1 is a schematic side view of a pachinko ball fryer according to the present invention, partially broken away. In FIG. 1, reference numeral 1 denotes a machine frame. The machine frame 1 is provided on a hollow base 2, a vertically long base guide 3 extending vertically upward from the base 2, and an upper portion of the base guide 3. The base 2 is provided with an entrance guide 5 for receiving pachinko balls, and the exit guide 4 has an outlet 6 for discharging pachinko balls in a predetermined direction.

Reference numeral 7 denotes an upper roller provided above the machine frame 1, and reference numeral 8 denotes a lower roller provided below the machine frame 1. Of these, the upper roller 7 is rotatable at the upper end of the base guide 3. The lower roller 8 is attached and is rotatably provided inside the base 2. In particular, the lower roller 8 has a rotating shaft 9 for driving to rotate in a predetermined direction by receiving power from the outside.
Is attached to one end of the pulley. A drive source (electric motor) 11 has a pulley 12 on its drive shaft.
Is attached. A pedestal 13 for mounting the drive source 11 is formed on the base 2, and a transmission belt 14 is hung between the pulleys 10 and 12.

On the other hand, 15 is an upper roller 7 and a lower roller 8
Endless conveyor belt hung between 16A and 16C
Is a tension roller for applying tension to the transport belt 15, and the transport belt 15 is alternately wound around each of the tension rollers 16A to 16C.
Is circulated in the up and down direction as indicated by an arrow by the rotational drive of the lower roller 8, and travels.

The tension rollers 16A to 16C are provided on the lower side of the conveyor belt 15, and the base guide 3 is provided with a door plate 17 on the upper side of the conveyor belt 15 along the longitudinal direction thereof. The door plate 17 is a base guide 3
Is openably and closably attached via a hinge 18, and when closed, its inner surface is opposed to the surface on the ascending side of the conveyor belt 15. Reference numeral 19 denotes guide rollers arranged along the longitudinal direction of the base guide 3. Each guide roller 19 is rotatably mounted on the base guide 3 and is in rolling contact with the inner surface on the rising side of the transport belt 15.

FIG. 2 shows a cross section taken along line XX in FIG. As is clear from this figure, the door plate 17 is composed of a guide plate 20 facing the rising surface of the conveyor belt 15 and the elastic plate 2 for urging the guide plate 20 outward.
1 and an exterior plate 22 for integrating them. Of these, the guide plate 20 is
A flow path 23 is formed to face the surface rising side of the vehicle and to lift the pachinko balls while cooperating with the conveyor belt 15.
In particular, the guide plate 20 has a plurality of (eight in this example) guide grooves 24 along its longitudinal direction (the direction perpendicular to the paper surface).
Are formed side by side, and a polishing cloth 25 is laid on one side of the formation surface as is known.

The guide grooves 24 have a semicircular shape substantially equal to the diameter of the pachinko balls P, and the pachinko balls P to be lifted along the respective guide grooves 24 are arranged in a rosary. As a result, the pachinko balls P are transported on one side by the transport belt 15.
While being kept in contact with the surface, it is lifted while rolling in each guide groove 24, and its surface is polished by the polishing cloth 25 during the lifting. Note that the door plate 17 has a lock pin 26 on the opposite side of the hinge 18, and a latch 27 that locks to the lock pin is rotatably provided on the base guide 3 corresponding to the lock pin 26.

Further, as is apparent from FIG. 1, a ridge 15A is formed in series at the center of the inner surface of the conveyor belt 15, and an annular groove 28 is formed in the guide roller 19 correspondingly. Incidentally, such an annular groove 28 is formed on all the rollers that come into contact with the inner surface of the conveyor belt 15, and includes the upper roller 7, the lower roller 8, and the tension roller 16B in addition to the guide roller 19.

For example, FIG. 3 is a schematic view showing a part of the lower roller 8 in a partially cutaway manner.
9 is an annular groove formed in the lower roller 8. Here, as is clear from FIG.
It can be seen that a plurality of guide grooves 30 having a diameter substantially equal to the diameter of the pachinko ball P fitted into each guide groove 30 are brought into contact with the conveyor belt 15. In particular, the entrance guide 5 has a curvature along the outer periphery of the lower roller 8, and one end of the entrance guide 5 is abutted against the lower end of the guide plate 20, so that the pachinko balls P are transferred from the entrance guide 5 to the guide plate 20 by the two guide grooves. 24 and 30 are communicated. Although not shown in the drawing, the outlet guide 4 also has a similar guide groove, and is fixed to the machine frame 1 so that its forming surface is along the upper roller 7. It is communicated with the guide groove 24.

FIG. 4 shows a portion where the tension roller is attached. As is apparent from this figure, the tension roller 16A has a cylindrical shape substantially equal to the width of the conveyor belt 15, and has two ridges 31 formed in parallel on its outer peripheral surface. In particular, the protruding ridges 31 are formed on the both sides in the axial direction of the tension roller 16A and are formed in a series along the circumferential direction of the outer peripheral surface of the tension roller 16A, and each outer peripheral surface is in rolling contact with both sides of the surface of the conveyor belt. Contact surface 32
It has been. Although the uppermost tension roller 16A is shown in FIG. 4, the lowermost tension roller 16C (see FIG. 1) has the same configuration, while the intermediate roller which is in rolling contact with the inner surface of the transport belt 15. The tension roller 16B is formed in a cylindrical shape having no ridge, and an annular groove 33 is formed in the center of the tension roller 16B in which the ridge 15A of the conveyor belt fits. However, a ridge that sandwiches the ridge 15A of the transport belt 15 may be formed on the tension roller 16B.

Here, the intermediate tension roller 16B
Is arranged so as to be able to move in parallel in the direction of the arrow in FIG. 4 (in the direction perpendicular to the surface of the conveyor belt) so that the tension of the conveyor belt 15 can be changed in cooperation with the other tension rollers 16A and 16C. The tension rollers 16A and 16C are
The centering means is provided so that the direction of the axis can be changed along the surface of the conveyor belt 15.

As is apparent from FIGS. 4 to 6, the centering means is a support shaft 34 for rotatably supporting the tension rollers 16A and 16C, and a support for supporting one end of the support shaft 34 for swinging. 35, a movable piece 36 for connecting the other end of the support shaft 34, and an adjusting screw 3 screwed into the movable piece 36.
7 is included. The support 35 is formed in a U-shaped hardware in this example, and fixes one end of the support shaft 34 inserted therein with a bolt / nut. In particular, the support 35 is rotatably attached to the portion of the machine frame 1 with pins 38 as shown in FIG. 6 so that the support shaft 34 fixed thereto swings along the surface of the transport belt 15. The support 3
As 5, a spherical bearing or a self-aligning bearing can be used.

On the other hand, the movable piece 36 is vertically movably fitted into a non-circular rotation restricting cylinder 39 formed at the portion of the machine frame 1. 4
At 0, it is swingably connected. In particular, the rotation restricting cylinder 39 has a long hole 4 through which the pin 40 passes along the moving direction of the movable piece 36.
1 is formed, and an elongated hole 42 through which the pin 40 passes is formed at one end of the support shaft 34 along the longitudinal direction thereof. still,
The long hole 42 may be a round hole having the same diameter as the pin 40, and the connecting portion between the support shaft 34 and the support 35 may be a long hole.

The adjusting screw 37 is screwed into the upper surface of the movable piece 36 through the seat plate 43 fixed to the portion of the machine frame 1.
By rotating this in the forward and reverse directions, the movable piece 36 moves up and down, and at this time, the support shaft 34 swings along the surface of the transport belt 15 around the connecting portion with the support 35 as the swing center. I have. Therefore, the tension rollers 16A and 16C rotating about the support shaft 34 as an axis are swung as shown by imaginary lines in FIG. 5, and the ridges 31 formed on the outer peripheral surface thereof are kept in contact with the surface of the transport belt 15 while being kept in contact therewith. Its orientation can be adjusted.

Here, the tension roller 16A (16
7C, as shown in FIG. 7A, the axis is usually directed in a direction orthogonal to the running direction of the conveyor belt 15, and
Is matched with the traveling direction of the conveyor belt 15. For this reason,
The transport belt 15 circulates along a fixed orbit without shifting due to the synergistic effect of the ridge 15A formed on the inner surface thereof and the ridge 31 formed on the tension roller 16A (16C). When the conveyance belt 15 is caught between the belt 15 and the tension roller 16A (16C), the trajectory of the conveyance belt 15 may be shifted in the width direction.

In this case, the direction of the axis of the tension roller 16A (16C) is adjusted by the centering means configured as described above (by rotating the adjusting screw 37 in the forward and reverse directions), and the orbit of the transport belt 15 is adjusted. Can be easily modified.

For example, as shown in FIG. 7B, by swinging the tension roller 16A (16C) in the direction opposite to the running direction of the conveyor belt 15, the conveyor belt displaced to the arrow A side in the figure is moved to the arrow B side. Can be restored. or,
As shown in FIG. 7C, the tension roller 16A (16
By swinging C) in the traveling direction of the transport belt 15, the transport belt 15 shifted to the illustrated arrow B side can be returned to the arrow A side.

The preferred embodiment of the present invention has been described with reference to the drawings.
Is not limited to two and may be one or three or more. However, when a plurality of ridges 31 are formed, it is important to make the interval constant so that the pressure by the ridges 31 acts evenly on the conveyor belt 15.

[0029]

As is apparent from the above description, according to the present invention, a ridge is formed on the outer peripheral surface of the tension roller, and the outer peripheral surface of the ridge is in rolling contact with the surface of the conveyor belt. Therefore, a large pressure due to the ridge acts on a part of the transport belt, so that the trajectory of the transport belt can be kept constant.

Furthermore, since the contact area between the conveyor belt and the ridge is small, the rate of foreign matter biting between them is low.
The deviation of the conveyor belt due to foreign matter can be greatly reduced, thereby preventing damage due to the deviation and defective conveyance of pachinko balls.

Also, since the direction of the axis of the tension roller can be changed along the surface of the conveyor belt by the centering means, even if the conveyor belt is shifted, the trajectory can be easily and easily corrected. Can be done quickly.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a partially broken pachinko ball fryer according to the present invention.

FIG. 2 is a sectional view taken along line XX in FIG.

FIG. 3 is a partial cross-sectional view showing a lower roller portion;

FIG. 4 is a schematic perspective view showing an example of a tension roller device.

FIG. 5 is a schematic front view showing an example of a tension roller device.

FIG. 6 is a schematic plan view showing one end of a tension roller.

FIG. 7 is a schematic diagram showing the movement of a tension roller.

FIG. 8 is a schematic diagram showing a conventional pachinko ball fryer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame 2 Base 3 Base guide 4 Outlet guide 5 Inlet guide 7 Upper roller 8 Lower roller 11 Drive source 15 Conveying belt 16A-16C Tension roller 20 Guide plate 31 Ridge 32 Contact surface 34 Support shaft 35 Support member 36 Movable piece 37 Adjustment screw

Claims (4)

[Claims] An upper roller and a lower roller are rotatably provided on both upper and lower sides of a machine frame, one of which is connected to a driving source for driving, and a tension roller is provided between the upper roller and the lower roller. In a pachinko ball lifting and feeding device provided with a guide plate for sandwiching pachinko balls in cooperation with the conveyor belt on the ascending side of the conveyor belt, the endless conveyor belt is looped along the circumferential direction of the outer peripheral surface. A pachinko ball lifting device, comprising: a tension roller having a ridge formed thereon; and an outer peripheral surface of the ridge serving as a contact surface that comes into rolling contact with the conveyor belt. 2. An upper roller and a lower roller are rotatably mounted on upper and lower sides of a machine frame, respectively, and one of them is connected to a driving source for driving, and a tension roller is provided between the upper roller and the lower roller. In a pachinko ball lifting and feeding device provided with a guide plate that sandwiches a pachinko ball in cooperation with the conveyor belt on the ascending side of the conveyor belt, the endless conveyor belt is looped around the outer peripheral surface on both sides in the axial direction. A tension roller in which annular ridges are formed in parallel with each other, and an outer peripheral surface of each ridge is a contact surface that is in rolling contact with the conveyor belt. 3. An upper roller and a lower roller are rotatably mounted on upper and lower sides of a machine frame, respectively, and one of them is connected to a driving source for driving, and a tension roller is provided between the upper roller and the lower roller. In a pachinko ball lifting and feeding device provided with a guide plate that sandwiches a pachinko ball in cooperation with the conveyor belt on the ascending side of the conveyor belt, the endless conveyor belt is looped around the outer peripheral surface on both sides in the axial direction. A tension roller having annular protrusions formed in parallel along the outer periphery of each of the protrusions serving as a contact surface for rolling contact with the conveyor belt, and a tension roller having the protrusions on the machine frame. A pachinko ball lifting device provided with an aligning means for changing the direction of the axis along the transport belt. 4. The centering means includes: a support shaft rotatably supporting a tension roller having a projection formed on an outer periphery; a support device rotatably supporting one end of the support shaft; The movable shaft includes a movable member that can move up and down and has one end connected thereto, and an adjusting screw that is screwed into the movable member. By rotating the adjusting screw in the normal or reverse direction, the support shaft swings the connection portion with the support. 4. The pachinko ball lifting device according to claim 3, wherein the pachinko ball lifting device is configured to swing along the surface of the conveyor belt as a center.