JP7309241B1 - chain conveyor equipment - Google Patents

Abstract

[Problem] To make it possible to increase the bending angle of a frame that constitutes a running path of a chain belt. [Solution] A long hole (512) is formed in a first side wall (510) of a frame (500), and a convex body (522) is formed in a second side wall (520). When two frames (500) are connected, the convex body (522) of one frame is fitted into the long hole (512) of the other frame. The combination of the long hole (512) and the convex body (522) makes it possible for one frame to curve at a large bending angle relative to the other frame. [Selected Figure] Fig. 13

Description

TECHNICAL FIELD The present invention relates to a chain conveyor device for transporting game media such as tokens placed thereon, and more particularly to a chain conveyor device capable of realizing a curved transport path in a horizontal plane.

A chain conveyor device of this type is disclosed in Patent Document 1.
FIG. 47 is a plan view of the chain conveyor device C described in the same document as viewed from above, and FIG. 48 is a perspective view of the chain conveyor device C. As shown in FIG.
As shown in FIG. 47, a pachi-slot machine P, a medal lending machine Q adjacent to the pachi-slot machine P, and a chair R on which a player sits are arranged in the circumferential direction of a circular island S at equal intervals. The chain conveyor device C is arranged above the inner peripheral side of the island S, and functions as a supply conveyor for supplying medals to the pachi-slot machine P and the medal lending machine Q from above.
The chain conveyor device C includes a plurality of conveyor bending portions 1, a plurality of conveyor straight portions 2, a conveyor drive unit U1, and a conveyor return unit U2.

Conveyor curved portion 1 constitutes a curved portion of the conveying path along which medals are conveyed, and conveyor straight portion 2 constitutes a straight portion of the conveying path. A plurality of conveyor curved portions 1 and a plurality of conveyor straight portions 2 are alternately connected, and each conveyor curved portion 1 is bent (curved) in a horizontal plane by a predetermined angle. For this reason, the chain conveyor device C can form a conveying path along the arc shape of the circular island S. As shown in FIG.
49 is a perspective view of the conveyor drive unit U1, and FIG. 50 is a sectional view showing the inside of the conveyor drive unit U1.
The conveyor drive unit U1 drives the endless chain belt 3 (see FIG. 49) carrying medals placed thereon in the conveying direction of the conveying path. The conveyor drive unit U1 includes a drive motor U1a (see FIG. 48) for driving the chain belt 3 in the conveying direction, and a drive sprocket U1s (see FIG. 50) around which the chain belt 3 is wound.

The conveyor return unit U2 follows the conveyor drive unit U1. As shown in FIG. 47, the conveyor return unit U2 is arranged in an automatic medal replenishment device T that replenishes the island S with medals, and functions as a medal receiving port replenished by the automatic medal replenishment device T. The medals supplied from the medal automatic supply device T to the conveyor return unit U2 alternately pass through the conveyor curved portion 1 and the conveyor straight portion 2, and the medals branch toward the pachislot machine P or the medal dispenser Q. The coins are thrown into the pachi-slot machine P or the medal dispenser Q via the unit B1 (see FIG. 48) and the medal replenishment bellows B2 (see FIG. 48).
FIG. 51 is a longitudinal sectional view of the conveyor straight portion 2. FIG.
As shown in FIG. 51 , the conveyor linear section 2 is a hollow frame body having a rectangular cross section, and includes a linear rail section 21 , a pair of side cover sections 22 and a top cover section 23 .

The straight rail portion 21 supports the chain belt 3 that circulates along the conveyor straight portion 2 of the conveying path. The straight rail portion 21 includes an upper bottom plate portion 211, a lower bottom plate portion 212, an intermediate bottom plate portion 213, and a water smooth running portion 211c.
The upper bottom plate portion 211 is a bottom plate portion that exists below the conveying side chain belt 3 (the upper portion of the chain belt 3 on which the medals to be conveyed are placed) that circulates within the conveyor straight portion 2 . The lower bottom plate portion 212 is a bottom plate portion that supports the return-side chain belt 3 (the chain belt 3 folded back by the conveyor drive unit U1 at the end of the conveying path) that circulates within the conveyor straight portion 2 .
52 is a perspective view of the chain belt 3 as seen from above, and FIG. 53 is a perspective view of the chain belt 3 as seen from below.

As shown in FIGS. 52 and 53, the chain belt 3 includes a plurality of chain pieces 31 having a medal mounting surface on the upper surface, and a plurality of cylindrical rod-shaped connecting pins 32 connecting the chain pieces 31 to each other. and consists of
Each chain piece 31 has a base portion 311 extending in the width direction, two connecting pieces 312 and 313 extending in the conveying direction from the base portion 311 at both ends of the base portion 311 , and a connecting piece extending from the base portion 311 between the two connecting pieces 312 and 313 . It has two connecting pieces 314 and 315 extending in the conveying direction, and three connecting pieces 316 to 318 extending from the base 311 in the direction opposite to the conveying direction.
FIG. 54(a) is a partial plan view of the straight rail portion 21 (conveyor straight portion 2) formed by connecting a plurality of chain pieces 31, and FIG. 54(b) is a cross section of FIG. 54(a). It is a plan view.

Through holes extending in the width direction are formed in each of the connecting pieces 314 to 318. By inserting the connecting pin 32 into these through holes, the two chain pieces 31 rotate about the axis of the connecting pin 32. interconnected so as to be flexible. As shown in FIG. 54( a ), the chain belt 3 forming the linear rail portion 21 is formed by connecting a plurality of chain pieces 31 via the connecting pins 32 .
FIG. 55(a) is a partial plan view of a bent rail portion (conveyor bent portion 1) formed by connecting a plurality of chain pieces 31, and FIG. 55(b) is a cross section of FIG. 55(a). It is a diagram.

The inner diameter of the through holes formed in the connecting pieces 314 to 318 of the chain piece 31 is set slightly larger than the diameter of the connecting pin 32, and the front and rear direction of the through holes expands outward in the width direction of the chain piece 31. diametrically formed. Therefore, the chain piece 31 can be bent (curved) to an angle within a certain range in the horizontal plane (up to 3 degrees) with respect to the adjacent chain piece 31 . In this manner, each of the plurality of chain pieces 31 is bent (curved) with respect to the adjacent chain pieces 31 to form a bent rail portion (conveyor bent portion 1).
56 is a perspective view of the conveyor bend 1. FIG.
As shown in FIG. 56, the curved portion 1 of the conveyor is formed by connecting a plurality of curved traveling path frames 10 having the same shape to each other in the conveying direction.

57(a) and 57(b) are perspective views of the curved travel path frame 10 as seen from the rear and front, respectively.
The curved traveling path frame 10 is composed of an inner frame portion 11 and an outer frame portion 12 which are integrally formed. The outer edge shape of the rear edge portion of the inner frame portion 11 and the inner shape of the front edge portion of the outer frame portion 12 match, and the inner frame portion 11 and the outer frame portion 12 form a continuous shape.
The inner frame portion 11 has a ceiling portion 111, and the ceiling portion 111 is formed with an engaging piece 111a, a right ceiling plate 111R, and a left ceiling plate 111L. The engaging piece 111 a is arranged in the center of the ceiling portion 111 in the width direction and extends forward from the center of the rear edge portion of the ceiling portion 111 . Slits are formed between the engaging piece 111a and the right ceiling plate 111R and the left ceiling plate 111L, respectively. Displacement (elastic deformation) is possible. A bending shaft 111b formed of a cylindrical body extending upward (in the vertical direction) is arranged at the front end of the engaging piece 111a.

The inner frame portion 11 further includes a lower bottom plate portion 114 . The lower bottom plate portion 114 supports the mounting surface of the chain belt 3 on the return side that circulates in the curved running path 10 from below. The lower bottom plate portion 114 is formed with an engaging piece 114a, a lower right bottom plate 114R, and a lower left bottom plate 114L similar to the engaging piece 111a, the right ceiling plate 111R, and the left ceiling plate 111L formed on the ceiling portion 111. A bending shaft 114b formed of a cylindrical body extending downward (vertical direction) is arranged at the front end of the engaging piece 114a.
The ceiling portion 121 of the outer frame portion 12 is formed with a through hole 121a at the center in the width direction so that the bending shaft 111b can be fitted from below. , a through hole 123a into which the bending shaft 114b can be fitted from above is formed.

By fitting the bending shafts 111b and 114b of the inner frame portion 11 of each curved travel path frame 10 to the through holes 121a and 123a of the outer frame portion 12 of the adjacent curved travel path frame 10, a plurality of bends are formed. The track frames 10 are interconnected. Each curved track frame 10 is rotatable with respect to the adjacent curved track frame 10 within a certain angular range (up to 3 degrees). is formed.
FIG. 58 is a plan view of the conveyor bend 1 formed in this way.

JP 2019-182650 A

Although the conventional chain conveyor device C shown in FIGS. 47 to 58 realizes a curved conveying path in the horizontal plane, it has the following drawbacks.
In the conventional chain conveyor device C, as shown in FIG. By fitting the through holes 121a and 123a, a plurality of curved traveling path frames 10 are connected to each other, and the conveyor curved portion 1 is formed. Each curved runway frame 10 is rotatable with respect to the adjacent curved runway frame 10 through a certain angular range, but this angular range is very small (3 degrees maximum, as described above), so the comparison Only a curved path with a large target radius (conveyor curved portion 1) can be formed, and a curved path with a relatively small radius cannot be formed.

Furthermore, in the conventional chain conveyor device C, since the bending shafts 111b and 114b are in close contact with the insides of the through holes 121a and 123a, if an unintended lateral force acts on the bending shafts 111b and 114b, the bending shafts 111b and 114b may Since the bending shafts 111b and 114b cannot be displaced and the external force cannot be released, the bending shafts 111b and 114b may be damaged.
The present invention has been made in view of the problems in the conventional chain conveyor device C as described above, and is a chain that makes it possible to form a curved path with a relatively small radius and is also improved in strength. It is an object of the present invention to provide a conveyor device.

In order to achieve this object, the present invention provides a curved transport path forming frame (500) that forms a transport path (740) along which a chain belt (710) on which a game medium is placed and transported runs in a chain conveyor device. A plurality of curved transport path forming frames (500) are connected to each other to form a curved transport path (742) in the horizontal plane. A pair of first side walls (510) and a pair of second side walls (520) facing each other are provided, and each of the pair of first side walls (510) is adjacent to the curved transport path forming frame (500). The distance between the pair of second side walls (520) is such that the pair of second side walls (520) are in contact with each of the pair of second side walls (520) and fit between the pair of second side walls (520). Each of the pair of first side walls (510) has an elongated hole (510) extending in the width direction orthogonal to the height direction of the first side wall (510). 512) are formed, and the inner wall of each of the pair of second side walls (520) is provided with an elongated hole (512) that can be fitted into the elongated hole (512) of the adjacent curved transport path forming frame (500). Provided is a curved transport path forming frame (500) characterized in that convex bodies (522) slidable inside (512) are formed so as to protrude toward each other.

The convex body (522) preferably has a cylindrical shape.
The top surface of the convex body (522) is formed with an inclined surface (522b) that becomes lower in the direction from the pair of first side walls (510) toward the pair of second side walls (520). preferable.
Each of the pair of second side walls (520) is formed with two slits (523) extending in the width direction orthogonal to the height direction of the second side wall (520). The central portion (524) sandwiched between the two slits (523) can swing about the base end of the central portion (524) with respect to the outer two portions (525A, 525B) of the two slits (523). , The convex body (522) is preferably formed in the central portion (524).

Preferably, the curved transport path forming frame (500) further comprises a top cover (570) that removably covers the pair of first side walls (510) and the pair of second side walls (520) from above. . The top cover (570), for example, includes a pair of first side walls (580) that fit into the outer walls of each of the pair of second side walls (520), and each of the pair of first side walls (510). and a pair of second side portions (590) covering from the outside, and each of the pair of first side portions (580) has a width direction orthogonal to the height direction of the first side portions (580). The inner wall of each of the pair of second side portions (590) is formed with an elongated hole (583) extending in the direction of the elongated hole of the first side portion (580) of the adjacent top cover (570). It is preferable that a second convex body (592) that can be fitted to (583) and slidable inside the long hole (583) is formed to protrude toward each other.
The second convex body (592) preferably has a columnar shape.

It is preferable that the top surface of the second convex body (592) is formed with a slope that becomes lower in the direction from the first side toward the second side.
Two slits (593) extending in the width direction orthogonal to the height direction of the second side portion (590) are formed in each of the pair of second side portions (590). 593) can swing about the base end of the central portion with respect to the outer two portions of the two slits (593), and the second convex shape Body (592) is preferably formed in said central portion (594).
Reference numerals in parentheses are provided for reference to show correspondence with the embodiments described later, and are not intended to limit the scope of the present invention.

The maximum bending angle of the conveying path in the conventional chain conveyor device C was 3 degrees. In the conventional chain conveyor device C, the bent shafts 111b and 114b of the inner frame portion 11 and the through holes 121a and 123a of the outer frame portion 12 are fitted to form a curved portion (conveyor bent portion 1) of the conveying path. Therefore, it was impossible to increase the upper limit of the bending angle.
On the other hand, in the curved transport path forming frame according to the present invention, since the curved portion of the transport path is formed by combining the elongated holes and the convex bodies, it is possible to achieve a bending angle of more than 3 degrees. is possible.
Furthermore, in the conventional chain conveyor device C, since the bending shafts 111b and 114b are in close contact with the insides of the through holes 121a and 123a, if an unintended lateral force acts on the bending shafts 111b and 114b, the bending shafts 111b and 114b may 111b and 114b could be damaged.

In contrast, in the present invention, even if an unintended external force acts on the convex body from the lateral direction, the convex body can move inside the elongated hole, and the external force can be released. The possibility that the convex body is damaged by the bending is smaller than that of the bending shafts 111b and 114b in the conventional chain conveyor device C.
As described above, according to the bent conveying path forming frame according to the present invention, it is possible to form a curved portion with a relatively small radius as compared with the conventional chain conveyor device C. It is possible to improve the strength of the connection of the transport path forming frames.
Furthermore, the conventional chain conveyor device C is assumed to be installed in a horizontal plane, and it was impossible to install the conveyor bending portion 1 with the inclined upward (or diagonally downward) inclination.
On the other hand, the bent conveying path forming frame according to the present invention does not have such a limitation, and unlike the conventional chain conveyor device C, the bent conveying path forming frame can be moved not only in the horizontal plane but also diagonally upward or upward. It is possible to install it even in the obliquely downward inclined surface.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a chain conveyor device provided with a curved conveying path forming frame according to a first embodiment of the present invention; FIG. 2 is a plan view when the chain conveyor device shown in FIG. 1 is viewed from above; It is a perspective view of a chain belt. It is a top view when a chain belt is seen from above. It is a side view of a chain belt. It is a perspective view of a connecting pin. FIG. 4 is a perspective view of a single belt unit with connecting pins passed through; FIG. 8 is a bottom view for FIG. 7; FIG. 8 is a front view relative to FIG. 7; FIG. 8 is a plan view relative to FIG. 7; FIG. 8 is a side view relative to FIG. 7; FIG. 4 is a perspective view of a curved transport path forming frame that constitutes the transport path, as viewed from the front;

13 is a perspective view of the curved transport path forming frame shown in FIG. 12 as viewed from the rear; FIG. 13 is a plan view of the curved transport path forming frame shown in FIG. 12; FIG. Front view of the curved transport path forming frame shown in FIG. FIG. 13 is a side view of the curved transport path forming frame shown in FIG. 12; FIG. 13 is a longitudinal sectional view of the curved transport path forming frame shown in FIG. 12; FIG. 10 is a perspective view of two curved transport path forming frames connected together, as seen from the front; FIG. 10 is a perspective view of the two curved transport path forming frames connected together as viewed from the rear; FIG. 4 is a perspective view showing a state in which a chain belt passes through a frame for forming a curved conveying path; It is a side view of a convex-shaped body. FIG. 4 is a perspective view of a curved portion of a chain belt running path;

FIG. 4 is a schematic diagram showing the positional relationship between elongated holes and protrusions when forming a curved portion of a chain belt running path; FIG. 24(A) is a vertical cross-sectional view showing the engagement of the bending shaft and the through hole in the conventional chain conveyor device C, and FIG. FIG. 10 is a plan view of the convex body fitted in the long hole in FIG. It is a perspective view of a top cover. FIG. 26 is a plan view of the top cover shown in FIG. 25; 26 is a front view of the top cover shown in FIG. 25; FIG. FIG. 26 is a side view of the top cover shown in FIG. 25; FIG. 26 is a longitudinal sectional view of the top cover shown in FIG. 25; FIG. 10 is a front view of a curved transport path forming frame according to a second embodiment of the present invention;

FIG. 31 is a rear view of the curved transport path forming frame shown in FIG. 30; 31 is a perspective view of the curved transport path forming frame shown in FIG. 30; FIG. FIG. 10 is a front perspective view of two top covers that are connected to each other; FIG. 10 is a perspective view of the two top covers when they are connected to each other, viewed from the rear; FIG. 4 is a perspective view of a case in which a chain belt running path formed by a plurality of curved transport path forming frames is curved; FIG. 36 is a plan view relative to FIG. 35; 36 is a left side view of FIG. 35; FIG. 36 is a right side view of FIG. 35; FIG. FIG. 11 is a perspective view of another example of a connecting pin; FIG. 40 is a perspective view of a belt unit corresponding to the connecting pin shown in FIG. 39;

Figure 41 is a front view relative to Figure 40; 41 is a bottom view for FIG. 40; FIG. Figure 43 is a cross-sectional view of Figure 42; Figure 41 is a side view relative to Figure 40; 41 is a partially enlarged perspective view of the belt unit shown in FIG. 40; FIG. It is a longitudinal cross-sectional view of a state in which the connecting pin is inserted into the fourth projecting portion. It is a top view when the conventional chain conveyor apparatus is seen from upper direction. FIG. 48 is a perspective view of the chain conveyor device shown in FIG. 47; FIG. 11 is a perspective view of a conveyor drive unit in a conventional chain conveyor device; and FIG. 9 is a cross-sectional view showing the inside of a conveyor drive unit in a conventional chain conveyor device. It is a vertical cross-sectional view of a conveyor linear portion in a conventional chain conveyor device.

It is a perspective view when the chain belt in the conventional chain conveyor apparatus is seen from upper direction. It is a perspective view when the chain belt in the conventional chain conveyor apparatus is seen from the downward direction. FIG. 54(a) is a partial plan view of a straight rail portion (conveyor straight portion) formed by connecting a plurality of chain pieces, and FIG. 54(b) is a cross section of FIG. 54(a). It is a diagram. FIG. 55(a) is a partial plan view of a bent rail portion (conveyor bent portion) formed by connecting a plurality of chain pieces, and FIG. 55(b) is a cross-sectional view of FIG. 55(a). be. FIG. 10 is a perspective view of a conveyor bending portion in a conventional chain conveyor device; FIG. 57(a) is a perspective view of the curved travel path frame as seen from the rear, and FIG. 57(b) is a perspective view of the curved travel path frame as seen from the front. FIG. 10 is a plan view of a bent portion of a conveyor in a conventional chain conveyor device;

(First embodiment)
FIG. 1 is a perspective view of a chain conveyor device 700 provided with a curved conveying path forming frame 500 according to the first embodiment of the present invention, and FIG. 2 is a plan view of the chain conveyor device 700 viewed from above.
As shown in FIG. 1, the chain conveyor device 700 includes a chain belt 710 for conveying medals and other game media placed thereon, and a chain belt supporting the chain belt 710 to form a conveying path for conveying the game media. It comprises a track 740 , a driving device 730 for driving the chain belt 710 , and a driven device (not shown) for the driving device 730 .
As will be described later, the chain belt running path 740 can be bent (curved) at any desired point in the horizontal plane. For this reason, a chain belt running path 740 as a transporting path for transporting game media alternately includes straight portions 741 extending linearly and curved portions 742 curved in a curved shape (see FIG. 2).

The transport path shown in FIGS. 1 and 2 is configured to have one curved portion 742, but the shape of the island (see FIG. 47) on which game tables such as pachislot machines are arranged (especially Any number of curved portions 742 can be formed depending on the shape of the island, including curved shapes such as circles.
The linear portion 741 of the chain belt running path 740 is composed of, for example, upright walls (not shown) provided on both sides of the chain belt 710 in the width direction. This vertical wall prevents the medals being conveyed from falling from the chain belt 710 .
A curved portion 742 of the chain belt running path 740 is formed by connecting a plurality of bent conveying path forming frames 500 (described later).
The driving device 730 and the driven device are the same as the driving device in the conventional chain conveyor device C.

Specifically, the drive device 730 includes a drive motor 731 and a driven sprocket wheel (not shown). The drive motor 731 is arranged at one end (the right end in FIG. 1) of the chain conveyor device 700, and the driven sprocket wheel is arranged at the other end (the left end in FIG. 1) of the chain conveyor device 700. A chain belt 710 (described later) is stretched between a driven sprocket wheel and a driving sprocket wheel attached to the output shaft of a driving motor 731, and is an endless belt between the driving sprocket wheel and the driven sprocket wheel. to travel back and forth.
3 is a perspective view of the chain belt 710, FIG. 4 is a plan view of the chain belt 710 viewed from above, FIG. 5 is a side view of the chain belt 710, and FIG. .
As shown in FIGS. 3 and 4, the chain belt 710 includes a plurality of belt units 720 and a plurality of connecting pins 735, and each belt unit 720 rotates through the connecting pins 735. Connected as possible.

7 is a perspective view of a single belt unit 720 with connecting pin 735 inserted, FIG. 8 is a bottom view of FIG. 7, FIG. 9 is a front view of FIG. 7, and FIG. 10 is a plan view of FIG. 11 is a side view with respect to FIG.
As shown in FIG. 7, the belt unit 720 includes a plate-like base portion 721 extending in the width direction Y of the belt unit 720 (a direction perpendicular to the conveying direction X of the chain belt 710), and Plate-shaped supporting projections 722 and 723 extending in one direction (right direction in FIG. 7) from the base portion 721 at both ends of the base portion 721, and one direction from the base portion 721 between the supporting projections 722 and 723 A first protrusion 724 and a second protrusion 725 extending in the same direction as the supporting protrusions 722 and 723 extend, and between the supporting protrusions 722 and 723 in the opposite direction from the base portion 721 (in FIG. 7, leftward), a third projecting portion 726, a fourth projecting portion 727, and a fifth projecting portion 728 are provided.

While the supporting protrusions 722 and 723 have the same thickness (the length in the vertical direction in FIG. 7) as the base portion 721, the first to fifth protrusions 724-728 have the same thickness as the base portion 721. has a thickness greater than Specifically, the top surfaces of the first to fifth projecting portions 724-728 are flush with the top surface of the base portion 721, but the bottom surfaces of the first to fifth projecting portions 724-728 are higher than the bottom surface of the base portion 721. located below.
The supporting protrusions 722, 723 and the first to fifth protrusions 724-728 have the same length (length in the conveying direction X of the chain belt 710) and width (length in the width direction Y of the chain belt 710). and are arranged in the width direction Y at equal intervals. Therefore, the supporting protrusions 722 and 723 and the first to fifth protrusions 724 to 728 are alternately arranged along the width direction Y of the belt unit 720 in one direction (right direction in FIG. 7) and in the opposite direction (right direction in FIG. 7). leftward).

Through holes 724a and 725a (see FIG. 8) are concentrically formed in the first projecting portion 724 and the second projecting portion 725, respectively. 726a, 727a and 728a are formed. These through holes 724a to 728a are formed to have a size that allows the connecting pin 735 to fit therein.
As shown in FIG. 6, the connecting pin 735 has a substantially cylindrical shape.
The first belt unit 720A (see FIG. 3) and the second belt unit 720B (see FIG. 3) are interconnected as follows.
First, the first protruding portion 724 and the second protruding portion 725 of the second belt unit 720B are inserted into the two spaces formed between the third to fifth protruding portions 726-728 of the first belt unit 720A. Insert each.
Next, the connecting pin 735 is inserted from below the supporting protrusion 723 into the through holes 728a, 725a (second belt unit 720B), 727a, 724a (second belt unit 720B), and 726a in this order.

Thus, the first belt unit 720A and the second belt unit 720B are interconnected. The first belt unit 720A and the second belt unit 720B are mutually rotatable around the connecting pin 735. As shown in FIG.
A plurality of belt units 720 are interconnected to form a chain belt 710 in the same manner as the first belt unit 720A and the second belt unit 720B are interconnected.
7, a slit 728b extending in the width direction Y of the belt unit 720 is formed at the tip of the fifth projecting portion 728. As shown in FIG. By forming the slit 728b, the tip portion of the fifth projecting portion 728 is divided into an upper portion and a lower portion. Therefore, when the belt unit 720 is made of resin or other elastic material, the upper and lower portions of the fifth projecting portion 728 are urged upward and downward about the slit 728b. Due to the elasticity of the material, an elastic force is generated downward in the upper portion and upward in the lower portion, respectively.

When the connecting pin 735 is inserted, the upper and lower portions of the fifth projecting portion 728 are displaced upward and downward, respectively. The part is biased upwards and as a result the force clamping the connecting pin 735 increases.
At one end (the right end in FIG. 6) of the connecting pin 735, an inclined portion 735A whose diameter gradually increases is connected to the end of the inclined portion 735A and has the same diameter as the maximum diameter of the inclined portion 735A. , and the enlarged diameter portion 735B fits into the through hole 728a of the fifth projecting portion 728. As shown in FIG.
Thus, by providing the slit 728b in the fifth projecting portion 728 and fitting the enlarged diameter portion 735B provided in the connecting pin 735 into the through hole 728a of the fifth projecting portion 728, the connecting pin 735 can be Fixedly maintained inside the through-hole 728a, the connecting pin 735 falls out of the through-hole 728a of the fifth projection 728 and through the through-holes 724a-727a of the other first to fourth projections 724-727. can be prevented.

12 is a front perspective view of the curved transport path forming frame 500 forming the curved portion 742 of the chain belt running path 740, and FIG. 13 is a rearward view of the curved transport path forming frame 500 of FIG. 14 is a plan view of the curved transport path forming frame 500, FIG. 15 is a front view of the curved transport path forming frame 500, FIG. 16 is a side view of the curved transport path forming frame 500, and FIG. FIG. 18 is a longitudinal sectional view of the curved transport path forming frame 500, FIG. 18 is a perspective view of the two curved transport path forming frames 500 connected together, and FIG. 5 is a perspective view of the frame 500 when viewed from the front. FIG.

As shown in FIGS. 12 and 13, the curved transport path forming frame 500 has a pair of first side walls 510 facing each other, a pair of second side walls 520 facing each other, and a pair of first side walls 510. A connecting wall 530 connecting each of the pair of second side walls 520 to each of the pair of first side walls 520, and a connecting wall 530 extending between the pair of first side walls 510 at a substantially central position in the height direction of each of the pair of first side walls 510 and extending between the pair of first side walls 510. a first horizontal wall 540 connected to both of the first side walls 510 and extending between the pair of first side walls 510 below the first horizontal wall 540 and connecting to both of the pair of first side walls 510 a second horizontal wall 550;
Each of the pair of first side walls 510 is plate-shaped, and an extension part 511 is formed from the lower end toward the inside (from one first side wall 510 toward the other first side wall 510). Each extension part 511 is provided at a position with a sufficient space for the chain belt 710 to pass between it and the second horizontal wall 550, and has a sufficient length to support the chain belt 710. have.
A pair of upright walls 541 for reinforcement are provided between the first horizontal wall 540 and the second horizontal wall 550 .

FIG. 20 is a perspective view showing a state in which the chain belt 710 passes through the bent conveying path forming frame 500. As shown in FIG.
As shown in FIG. 20, the chain belt 710, which constitutes an endless belt, runs on the first horizontal wall 540 when running in the medal transport direction A, and when it returns after transporting the medals (transport direction A). When traveling in the opposite direction B), it travels on the pair of extensions 511 . When the chain belt 710 runs, the chain belt 710 runs with the upper surfaces of the supporting protrusions 722 and 723 of each belt unit 720 in contact with the first horizontal wall 540 and the extension 511, respectively.
Each of the pair of second side walls 520 is plate-shaped, and an extension part 521 is formed from the lower end toward the inside (from one second side wall 520 toward the other second side wall 520). Each extension 521 is coupled with each extension 511 of the first side wall 510 at a slightly lower level than each extension 511 of the first side wall 510 .

The distance D2 between the pair of second side walls 520 is set larger than the distance D1 between the pair of first side walls 510 (see FIG. 15). Furthermore, the pair of first side walls 510 and the pair of second side walls 520 are defined by the end of the pair of first side walls 510 (the end on the side of the second side wall 520) and the end of the pair of second side walls 520 (the end on the side of the second side wall 520). side wall 510 side) are arranged so as to be on the same straight line in the width direction C of the curved transport path forming frame 500 , and are further connected to each other via a connecting wall 530 .
The distance D2 between the pair of second side walls 520 and the distance D1 between the pair of first side walls 510 are defined by the distance between the pair of second side walls 520 of the curved transport path forming frame 500 where the pair of first side walls 510 are adjacent to each other. It is set so as to fit between the pair of second side walls 520 in contact with each of them.

As shown in FIGS. 18 and 19, it is assumed that the first curved transport path forming frame 500A and the second curved transport path forming frame 500B are adjacent to each other. In this case, while the outer surfaces of the pair of first side walls 510B of the second curved transport path forming frame 500B are in contact with the inner surfaces of the pair of second side walls 520A of the first curved transport path forming frame 500A, the second The pair of first side walls 510B of the bent conveying path forming frame 500B are fitted between the pair of second side walls 520A of the first bent conveying path forming frame 500A so as to be able to come into contact with each other. Thereafter, in the same manner, a plurality of bent conveying path forming frames 500 are connected to each other so as to be able to come into contact with each other, and a chain belt running path 740 is formed.
As shown in FIGS. 12 and 13 , each of the pair of first side walls 510 has a direction perpendicular to the height direction H of the first side walls 510 between the first horizontal wall 540 and the second horizontal wall 550 . An oblong hole 512 extending in the width direction C is formed.

Corresponding to the long hole 512, the inner wall of each of the pair of second side walls 520 has a convex body 522 (see FIG. 13) facing inward (one convex body 522 faces the other convex body 522). toward).
21 is a side view of the convex body 522. FIG.
The convex body 522 has a cylindrical shape, leaving a circular top surface part 522a and the other part forming an inclined surface 522b. The inclination of the slope 522b is set to decrease in the direction from the first side wall 510 toward the second side wall 520 (direction A in FIG. 20).
The projection 522 is set to a size that allows it to fit into the long hole 512 and slide inside the long hole 512 .
As shown in FIGS. 12 and 13 , each of the pair of second side walls 520 is formed with two slits 523 extending in the width direction C orthogonal to the height direction H of the second side walls 520 . The slit 523 has a depth from the tip of the second side wall 520 to a position close to the proximal end (the end that is joined to the joining wall 530).

In this way, since the slits 523 are formed deep, the central portion 524 sandwiched between the two slits 523 is the base of the central portion 524 with respect to the outer two portions 525A and 525B of the two slits 523. It is swingable in a horizontal plane centering on the end (the end on the side opposite to the tip).
The convex body 522 is provided on the inner wall of the central portion 524 .
Two curved transport path forming frames 500 adjacent to each other are connected to each other through long holes 512 and convex bodies 522 .
Specifically, as shown in FIGS. 18 and 19, the pair of first side walls 510B of the second curved transport path forming frame 500B are aligned with the pair of second side walls 520A of the first curved transport path forming frame 500A. When fitted between them, the convex body 522 of the first curved transport path forming frame 500A fits into the long hole 512 of the second curved transport path forming frame 500B. The projections 522 of the first curved transport path forming frame 500A fit into the long holes 512 of the second curved transport path forming frame 500B so that the two curved transport path forming frames 500A and 500B are mutually connected. is detachably connected to the

When the first side wall 510B of the second curved transport path forming frame 500B is slid along the second side wall 520A of the first curved transport path forming frame 500A in the direction of the arrow S, the first side wall 510B is formed. The elongated hole 512 abuts on the slope 522 b of the convex body 522 . As described above, the convex body 522 can swing in the horizontal plane. By further sliding the first side wall 510B of the second curved transport path forming frame 500B in the direction of the arrow S while the long hole 512 is in contact with the slope 522b, the first curved transport path forming frame 500A is opened. The convex body 522 swings (that is, bends) toward the outside of the second side wall 520A, and when the convex body 522 reaches the long hole 512, the convex body 522 swings toward the outside of the second side wall 520A. is released, and the convex body 522 is fitted inside the elongated hole 512 .
By providing the slope 522 b on the convex body 522 in this manner, the convex body 522 can be easily fitted into the long hole 512 .

The chain conveyor device 700 having the configuration described above operates as follows.
The medals supplied onto the chain belt 710 from the automatic medal supply device (automatic medal supply device T in FIG. 47) are fed by the chain belt 710 to the pachi-slot machine (Pachi-slot machine P in FIG. 47) or the medal lending machine (Fig. 47) adjacent to the pachi-slot machine. 47 medal lending machine Q).
The shape of the chain belt running path 740 that defines the running direction of the chain belt 710 is determined by combining straight portions 741 and curved portions 742 (see FIG. 2) according to the shape of the island (island S in FIG. 47).
The chain belt running path 740 is constructed by connecting a plurality of curved transport path forming frames 500 .

A straight portion 741 of the chain belt running path 740 is formed by arranging a plurality of bent conveying path forming frames 500 in a straight line. In this case, since the convex body 522 of one curved transport path forming frame 500 can slide inside the long hole 512 of the adjacent curved transport path forming frame 500, one curved transport path forming frame 500 can slide. , it is possible to adjust the length of the linear portion 741 within the range of the slidable distance of the convex body 522 .
FIG. 22 is a perspective view of the curved portion 742 of the chain belt running path 740. As shown in FIG.
When forming the curved portion 742 of the chain belt running path 740, as shown in FIG. 22, a plurality of curved transport path forming frames 500 forming the straight portion 741 are curved in either the left or right direction. . Each curved transport path forming frame 500 is connected to an adjacent curved transport path forming frame 500 through long holes 512 and convex bodies 522 . Therefore, as described below, the curved portion 742 can be formed relatively easily.

FIG. 23 is a schematic diagram showing the positional relationship between the elongated hole 512 and the convex body 522 when the curved portion 742 is formed.
In the linear portion 741, as shown in FIG. 23A, the convex body 522 formed on the second side wall 520A of the curved transport path forming frame 500A (see FIG. 19) is the curved transport path forming frame. It fits into the slot 512 of the first side wall 510B of 500B at the position indicated by the solid line.
When the curved transport path forming frame 500B is curved in the R direction with respect to the curved transport path forming frame 500A, the first side wall 510B changes its position relative to the second side wall 520A through the long hole 512, Move to the position indicated by the dashed line. In other words, the curved transport path forming frame 500B forms an oblique direction with respect to the curved transport path forming frame 500A. section 742 .

The degree of inclination of the curved transport path forming frame 500B with respect to the curved transport path forming frame 500A changes according to the length of the long hole 512 (the length in the width direction C). By increasing the length of the long hole 512, it is possible to increase the degree of inclination of the curved transport path forming frame 500B with respect to the curved transport path forming frame 500A. A portion 742 can be configured.
In particular, as shown in FIG. 23B, when the first side wall 510B of the curved transport path forming frame 500B moves onto the slope 522b of the convex body 522, the first side wall 510B of the curved transport path forming frame 500B Compared to the case where the side wall 510B is on the side wall of the convex body 522 (the position shown in FIG. 23A), the curved transport path forming frame 500B is more inclined to the curved transport path forming frame 500A. It is possible to greatly incline, and as a result, the radius of the curved portion 742 of the chain belt running path 740 can be further reduced.

According to the curved transport path forming frame 500 according to the present embodiment, the following effects can be obtained.
The maximum bending angle of the conveying path in the conventional chain conveyor device C was 3 degrees. In the conventional chain conveyor device C, the bent shafts 111b and 114b of the inner frame portion 11 and the through holes 121a and 123a of the outer frame portion 12 are fitted to form a curved portion (conveyor bent portion 1) of the conveying path. Therefore, it was impossible to increase the upper limit of the bending angle (up to 3 degrees). Is possible.
Furthermore, in the conventional chain conveyor device C, since the bending shafts 111b and 114b are in close contact with the insides of the through holes 121a and 123a, if an unintended lateral force acts on the bending shafts 111b and 114b, the bending shafts 111b and 114b may 111b and 114b could be damaged.

In contrast, even if an unintended external force acts on the convex body 522 in this embodiment from the lateral direction, the convex body 522 can move to some extent inside the long hole 512, and the external force can be released. Therefore, the risk of damage to the convex body 522 due to external force is smaller than that of the bent shafts 111b and 114b in the conventional chain conveyor device C.
As described above, according to the bent conveying path forming frame 500 according to the present embodiment, it is possible to form the curved portion 742 with a relatively small radius compared to the conventional chain conveyor device C, and furthermore, , it is also possible to improve the strength of connection of each curved transport path forming frame 500 .
Further, in the conventional chain conveyor device C, two adjacent curved traveling path frames 10 are formed by fitting the curved shaft 111b and the through hole 121a and by fitting the curved shaft 114b and the through hole 123a. , is configured to be bendable in the horizontal plane.

Depending on the surrounding environment (surplus space) where the chain conveyor device C is installed, it may be necessary to install the chain conveyor device C so as to be inclined obliquely upward. However, it was impossible to install the conveyor bending portion 1 of the chain conveyor device C so as to incline obliquely upward.
FIG. 24(A) is a vertical cross-sectional view showing fitting between the bent shaft 111b and the through hole 121a and fitting between the bent shaft 114b and the through hole 123a in the conventional chain conveyor device C. FIG.
When the conveyor bending portion 1 is to be installed so as to incline obliquely upward, one curved travel path frame 10A (the curved travel path frame 10 located on the left side in FIG. 24A) is attached to the other curved travel path. It is necessary to incline in the direction R with respect to the vehicle frame 10B (the curved running path frame 10 located on the right side of FIG. 24(A)).

Since the center lines X of the bending shafts 111b and 114b and the through holes 121a and 123a are in the vertical direction, if the conveyor bending section 1 is installed so as to be tilted upward, the through holes 121a of the curved traveling path frame 10A will not move. , 123a must be inclined from the vertical direction, but this is impossible because the through holes 121a, 123a are fitted with the bending shafts 111b, 114b.
That is, in the conventional chain conveyor device C, it is impossible to install the conveyor bending portion 1 so as to incline upward. Therefore, the conventional chain conveyor device C cannot be installed in a horizontal plane. is assumed.
On the other hand, the curved transport path forming frame 500 according to the present embodiment has no such limitation.
FIG. 24(B) is a plan view of the projection 522 of the second side wall 520 that fits into the long hole 510 formed in the first side wall 510 when viewed from the horizontal direction.

In the curved transport path forming frames 500 according to the present embodiment, the two mutually adjacent curved transport path forming frames 500 are formed by the protrusions 522 of one of the curved transport path forming frames 500 and the other curved transport path. It is connected with the long hole 512 of the forming frame 500 .
As shown in FIG. 24B, the centerline of the convex body 522 extends in the horizontal direction Z. As shown in FIG. For this reason, when the curved transport path forming frame 500 is installed so as to be tilted obliquely upward, the curved transport path forming frame 500 in which the convex bodies 522 are formed is the curved transport path forming frame in which the elongated holes 512 are formed. Although it is necessary to incline obliquely upward with respect to the frame 500 for bending, the curved transport path forming frame 500 having the convex body 522 formed thereon rotates in the direction S with respect to the elongated hole 512. An oblique upward tilt is possible. Since the rotation in the direction S is possible without hindrance, the connection of the two curved transport path forming frames 500 is not hindered, and one of the two adjacent curved transport path forming frames 500 can be rotated. One curved transport path forming frame 500 can be installed obliquely upward.

It is also possible to install the curved transport path forming frame 500 obliquely downward.
As described above, according to the curved transport path forming frame 500 according to the present embodiment, unlike the conventional chain conveyor device C, the curved transport path forming frame 500 can be moved not only in the horizontal plane but also diagonally upward or diagonally downward. It is possible to install it even in an inclined plane.
The curved transport path forming frame 500 according to the present embodiment is not limited to the above configuration, and various modifications are possible.
In this embodiment, the convex body 522 is configured to have a cylindrical shape, but other shapes, such as a prismatic shape, are also possible. A rectangular shape is preferable instead.
Also, in the present embodiment, the central portion 524 is formed by two slits 525A and 525B in the second side wall 520, but the two slits 525A and 525B are not necessarily required and can be omitted. be.
The top surface of convex 522 may remain circular. That is, it is possible to omit the slope 522b.

(Second embodiment)
In the curved transport path forming frame 501 according to the second embodiment, the pair of first side walls 510 and the pair of second side walls 520 are positioned upward compared to the curved transport path forming frame 500 according to the first embodiment. A top cover 570 is additionally provided. Except for this point, the curved transport path forming frame 501 according to the present embodiment has the same structure as the curved transport path forming frame 500 according to the first embodiment.
25 is a perspective view of the top cover 570, FIG. 26 is a plan view of the top cover 570, FIG. 27 is a front view of the top cover 570, FIG. 28 is a side view of the top cover 570, and FIG. is.

As shown in FIG. 25, the top cover 570 is coupled to a pair of first side portions 580 that are fitted to the outer walls of each of the pair of second side walls 520, and to upper ends of the pair of first side portions 580. A plate-shaped first ceiling portion 581 , a pair of second side portions 590 covering each of the pair of first side walls 510 from the outside, and a plate-shaped second side portion 590 coupled to the upper ends of the pair of second side portions 590 . Two ceiling parts 591 are provided.
30 is a front view of the curved transport path forming frame 501 according to this embodiment, FIG. 31 is a rear view of the curved transport path forming frame 501, and FIG. 32 is a perspective view of the curved transport path forming frame 501. FIG.
The space between the pair of first side portions 580 is set corresponding to the space D2 between the pair of second side walls 520 . Therefore, as shown in FIGS. 30 to 32, the pair of first side portions 580 are fitted outside the pair of second side walls 520 .
At the lower end of each of the pair of first side portions 580, a projection 584 having a semicircular cross section is formed to protrude inward. A groove 526 (see FIGS. 12 and 13) having a semi-circular cross section extending in the width direction C is formed in each of the pair of second side walls 520. By fitting the projection 584 into the groove 526, the top cover 570 can be opened. can be removably attached to the pair of second sidewalls 520 .

The distance between the pair of second side portions 590 is set larger than the full width of the pair of first side walls 510 (the distance between the outer surfaces of the first side walls 510), and as shown in FIGS. Each inner wall of the second side portion 590 is separated from each outer wall of the pair of first side walls 510 (to secure a space for forming a second convex body 592, which will be described later).
As shown in FIG. 25, each of the pair of first side portions 580, each of the pair of second side portions 590, and the first ceiling portion 581 and the second ceiling portion 591 are connected to each other via connecting walls 582. The pair of first side portions 580 and first ceiling portion 581 and the pair of second side portions 590 and second ceiling portion 591 are integrally constructed.
As shown in FIG. 25, each of the pair of first side portions 580 is formed with an oblong hole 583 extending in the width direction C (see FIG. 12) of the curved transport path forming frame 500 .

A second protrusion 592 similar to the protrusion 522 formed on each of the pair of second side walls 520 is formed on the inner wall of each of the pair of second side portions 590 . Two slits 593 are formed in each of the pair of second side portions 590 similarly to the second side wall 520 , and the second protrusions 592 are formed on the inner walls of the pair of second side portions 590 to form two slits 593 . It is located in a central portion 594 defined by slit 593 .
33 and 34 are front and rear perspective views of the two top covers 570 connected to each other.
The top covers 570 can be interconnected. The structure (the elongated hole 583 and the second convex body 592) that connects the two top covers 570 to each other connects the two curved transport path forming frames 500A and 500B (see FIGS. 18 and 19). The structure (long hole 512 and convex body 522) is the same, and the two top covers 570 are connected to each other in the same manner as the two curved transport path forming frames 500A and 500B are connected. can be done.

35 is a perspective view of a curved chain belt running path 740 formed by a plurality of curved transport path forming frames 501, FIG. 36 is a plan view of FIG. 35, and FIGS. 37 and 38 are of FIG. It is a left-right side view.
The plurality of top covers 570 can be mutually curved as shown in FIGS. 35 to 38 (see FIG. 23), like the plurality of curved transport path forming frames 500A and 500B. In this case, the pair of first side portions 580 and the pair of second side portions 590 move in conjunction with the pair of second side walls 520 and the pair of first side walls 510, respectively.
Since the curved transport path forming frame 501 according to the present embodiment includes the top cover 570, it is possible to prevent objects from falling onto the chain belt 710 from above.

Furthermore, since the top cover 570 is detachable, the curved transport path forming frame 500 (without the top cover 570) or the curved transport path forming frame 501 (with the top cover 570) can be selectively used as required. .
Further, the shape of the connecting pin 735 is not limited to that shown in FIG. 6, and other shapes are also possible.
39 is a perspective view of a connecting pin 735A which is another example of the connecting pin 735, FIG. 40 is a perspective view of a belt unit 720A used in place of the belt unit 720 corresponding to the connecting pin 735A, and FIG. 40 is a front view, FIG. 42 is a bottom view of FIG. 40, FIG. 43 is a cross-sectional view of FIG. 42, FIG. 44 is a side view of FIG. 40, and FIG. 45 is a partially enlarged perspective view of the belt unit 720A.
As shown in FIG. 39, the connecting pin 735A includes a columnar body portion 736A having a constant diameter except for a small diameter portion 737, which will be described later, and inclined portions 736B formed at both ends of the body portion 736A. ing.

A small diameter portion 737 smaller in diameter than the diameter of the main body portion 736A is formed concentrically with the main body portion 736A at the central portion in the longitudinal direction of the main body portion 736A. The length of the small diameter portion 737 in the length direction of the connecting pin 735A is set to be smaller than half the length of the fourth projecting portion 727 in the width direction Y of the belt unit 720A.
As shown in FIGS. 40 and 45, a slit 727b is formed in the fourth projecting portion 727 in the belt unit 720A. The slit 727b extends vertically from the bottom of the fourth protrusion 727 to the through hole 727a. The opening width of the slit 727b (the length of the chain belt 710 in the conveying direction X) is set smaller than the diameter of the body portion 736A of the connecting pin 735A. It is set within the range of 10% to 40%.

The belt unit 720A has the same structure as the belt unit 720 except that a slit 727b is formed instead of the slit 728b and a convex portion 727c described later is formed.
FIG. 46 is a vertical cross-sectional view of a state in which the connecting pin 735A is inserted into the fourth projecting portion 727. FIG.
As shown in FIG. 46, when the connecting pin 735A is inserted into the third to fifth projecting portions 726-728, the small diameter portion 737 of the connecting pin 735A is located at the center of the through hole 727a of the fourth projecting portion 727. Located in A ring-shaped protrusion 727c that can be fitted to the small diameter portion 737 is formed inside the through hole 727a, and the ring shaped protrusion 727c is formed on the small diameter portion 737 of the connecting pin 735A inserted into the through hole 727a. are matched.
The connecting pin 735A is inserted into the through hole 727a of the fourth protrusion 727 as follows.

Since the diameter of the main body portion 736A of the connecting pin 735A is larger than the inner diameter of the convex portion 727c, the connecting pin 735A cannot pass through the convex portion 727c even if the connecting pin 735A is pushed as it is.
As described above, the slit 727b is formed in the fourth projecting portion 727. As shown in FIG. Since the belt unit 720A (fourth projecting portion 727) is made of resin or other elastic material, the through hole 727a is aligned with the slit 727b when the connecting pin 735A tries to pass through the projecting portion 727c. As a result, the inner diameter of the protrusion 727c is expanded. When the body portion 736A of the connecting pin 735A passes through the convex portion 727c while the inner diameter of the convex portion 727c is being expanded, and the small-diameter portion 737 reaches a position facing the convex portion 727c, the connecting pin 735A continues to expand. The through-hole 727a, which has been expanded by the main body portion 736A, no longer receives the force to expand the through-hole 727a, so that the through-hole 727a shrinks to its original size. As a result, the projection 727c fits into the small-diameter portion 737. As shown in FIG.

As a result of the convex portion 727c fitting into the small diameter portion 737 in this way, the connecting pin 735A is fixed to the fourth projecting portion 727 and, by extension, to the belt unit 720A.
When removing the connecting pin 735A, the through hole 727a is expanded around the slit 727b with the slit 727b as the center, and the connecting pin 735A can be pulled out in the meantime.
The protrusion 727 c can be formed on the third protrusion 726 or the fifth protrusion 728 instead of the fourth protrusion 727 . In that case, the small diameter portion 737 is formed according to the position of the third protrusion 726 or the fifth protrusion 728 .
Moreover, the cross-sectional shape of the convex portion 727c and the small-diameter portion 737 is arbitrary. Any shape can be adopted as long as the convex portion 727c can be fitted to the small diameter portion 737 . For example, the cross-sectional shape of the protrusion 727c can be semicircular.

500 curved transport path forming frame 501 according to the first embodiment of the present invention curved transport path forming frame 510 according to the second embodiment of the present invention first side wall 520 second side wall 512 long hole 522 convex body 570 top cover 580 first side portion 590 second side portion 710 chain belt 730 drive device 740 chain belt running path

Claims (8)

In a chain conveyor device, a bent conveying path forming frame for forming a conveying path along which a chain belt conveying a game medium placed thereon travels, wherein a plurality of bent conveying path forming frames are interconnected to form a horizontal surface. In a bent conveying path forming frame that forms a curved conveying path inside,
a pair of first side walls facing each other;
a pair of second side walls facing each other;
Each of the pair of first side walls is in contact with each of the pair of second side walls of the adjacent curved transport path forming frame and is fitted between the pair of second side walls. The interval between is set larger than the interval between the pair of first side walls,
Each of the pair of first side walls is formed with an elongated hole extending in a width direction perpendicular to the height direction of the first side wall,
On the inner wall of each of the pair of second side walls, convex bodies protrude toward each other so as to be able to fit into the elongated holes of the adjacent curved transport path forming frames and slide inside the elongated holes. A frame for forming a curved transport path, characterized in that it is formed in the 2. The curved transport path forming frame according to claim 1, wherein said convex body has a cylindrical shape. 2. The curved conveying path according to claim 1, wherein the top surface of the convex body is formed with a slope that becomes lower in the direction from the pair of first side walls toward the pair of second side walls. forming frame. Each of the pair of second side walls is formed with two slits extending in the width direction orthogonal to the height direction of the second side wall, and the central portion between the two slits is formed with the two slits. is swingable about the proximal end of the central portion with respect to the two outer portions of the
2. The curved transport path forming frame according to claim 1 , wherein the convex body is formed in the central portion. The curved transport path forming frame further includes a top cover that detachably covers the pair of first side walls and the pair of second side walls from above,
The top cover is
a pair of first side portions that fit into the respective outer walls of the pair of second side walls;
a pair of second side portions covering each of the pair of first side walls from the outside;
and
Each of the pair of first side portions is formed with an elongated hole extending in a width direction perpendicular to the height direction of the first side portion,
The inner wall of each of the pair of second side portions is provided with a second convex body which can be fitted into the elongated hole of the first side portion of the adjacent top cover and which can slide inside the elongated hole. 5. The bent conveying path forming frame according to claim 1, wherein the bent conveying path forming frame is formed so as to protrude toward. 6. The curved transport path forming frame according to claim 5, wherein the second convex body has a cylindrical shape. 6. The curved conveying path according to claim 5, wherein the top surface of the second convex body is formed with a slope that becomes lower in the direction from the first side portion toward the second side portion. forming frame. Two slits extending in the width direction orthogonal to the height direction of the second side portions are formed in each of the pair of second side portions, and the central portion sandwiched between the two slits is the two slits. is swingable around the proximal end of the central portion with respect to the two portions outside the slit of
6. The curved transport path forming frame according to claim 5, wherein the second convex body is formed in the central portion.

Images