JPS6349793Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention stores a large number of coins or medals in a hopper, and as required, rotates a coin feeding disk to transfer coins from the hopper to a single designated destination. This invention relates to a coin dispensing device that dispenses several coins.

(Prior art) Conventionally, this type of coin sorting device was developed using the
As described in Publication No. 32836, a coin feeding disk is provided in the hopper and is rotated around a rotating shaft at a position inclined with respect to the horizontal, and this coin feeding disk has a central circular platform on its surface. and a coin dispensing pin protruding from the outer circumferential portion at positions spaced apart in the circumferential direction, and a coin dispensing knife whose tip is tangential to the upper end of the central circular platform crosses the outer circumferential portion with the dispensing pin and is fixed at a fixed position. A coin dispensing device is provided with a coin dispensing device, in which the coin dispensing pin picks up a coin from within the hopper by rotation of a coin dispensing disk, and the coin is guided to an entrance and exit port by a coin dispensing knife and delivered. Known.

In addition, Japanese Patent Application Laid-open No. 54-5498 discloses that in the above-mentioned coin feeding device, a stirring means for stirring the coins in the hopper is provided on the central circular platform of the coin feeding disk in a radial radius from the center. The provision of an elastomeric resilient stirring member of suitable uniform thickness extending in the direction is disclosed.

Furthermore, Japanese Patent Application Laid-Open No. 57-19891 discloses a coin dispensing device configured to rotatably support a coin dispensing disk by means different from the coin dispensing device of the type described in Japanese Patent Publication No. 59-32836. Disclosed. The coin feeding device disclosed in Japanese Patent Application Laid-Open No. 57-19891 includes a coin feeding disk which is rotated around a rotating shaft at a position inclined with respect to the horizontal in a hopper. A coin dispensing knife has a central circular platform on its surface and a coin dispensing pin protruding at positions spaced apart in the circumferential direction on an outer circumferential portion, and a coin dispensing knife whose tip is tangential to the upper end of the central circular platform is the outer circumferential portion with the dispensing pin. at a fixed position across the hopper, such that rotation of the coin delivery disc causes the coin delivery pin to pick up a coin from within the hopper, and the coin to be guided and delivered to the outlet by a coin delivery knife. In this type of coin feeding device, an annular race extending in the circumferential direction is provided on the outer peripheral edge of the lower surface of the coin feeding disk, and a plurality of balls that engage with this annular race are spaced at equal intervals in the circumferential direction by a retainer. A plurality of balls, which are thus rotatably held by the retainer at equally spaced positions in the circumferential direction, are held at an appropriate angle to the coin feeding disk and horizontally. A coin feeding disk is rotatably supported on the inclined support plate by being inserted between the inclined support plate fixed at an inclined angle,
A rotating shaft protruding through the inclined support plate is passed through the center hole of the coin feeding disk, an elastic member is attached to the rotating shaft protruding from the center hole of the coin feeding disk, and the elastic member causes the coin feeding disk to be rotated. The center of the coin feeding disk is pressed toward the inclined support plate, and the ball is thereby rolled into contact with the annular race on the lower surface of the outer peripheral edge of the coin feeding disk and the surface of the inclined supporting plate with an appropriate contact pressure, and the coin feeding disk is The relative positional relationship between the outer peripheral edge surface of the coin dispensing knife, the surface of the inclined support plate, and therefore the coin dispensing knife is maintained constant.

(Problem to be solved by the invention) However, the stirring claw protruding from the surface of the central circular base of the coin dispensing device described in the above-mentioned Japanese Patent Application Laid-Open No. 1989-1989 does not provide sufficient stirring action. There was a problem in that the coins could not be transferred and the coins remained in the hopper, resulting in poor coin delivery efficiency.

Therefore, as a result of various studies on stirring means, it was noticed that the elastomeric elastic stirring member described in the above-mentioned Japanese Patent Application Laid-Open No. 54-5498 could be suitably used.

That is, as shown in FIG.
A stirring member 4 made of an elastomer-like elastic material having an appropriate thickness and having a planar shape as shown in FIG. By attaching it to the rotating shaft, a sufficient stirring action can be obtained by the stirring member 4 made of an elastomeric elastic body extending radially in the radial direction, and at the same time, the center of the coin feeding disk 3 can be directed toward the support plate 1. As a result, the annular race provided on the lower surface of the outer peripheral edge of the coin feeding disk is elastically pressed into contact with the ball, and the surface of the outer peripheral edge of the coin feeding disk and the inclined support plate are pressed together. surface, and thus its relative position with the coin feeding knife, can be ensured to remain constant at all times without being adversely affected by uneven loads due to coins acting on the lower half of the coin feeding disk. It has become possible to achieve these effects at the same time.

However, the above-mentioned elastic pressing effect obtained by attaching the stirring member 4 made of an elastomeric elastic body alone as shown in FIGS. 4 and 5 with screws depends on the tightening condition of the screws. After tightening, it is necessary to check and adjust whether or not the ball is completely contacted with an appropriate pressing force.Also, with a normal washer 6, an even amount of pressing force is applied to the center of the coin feeding disk. If the amount of tightening is insufficient due to these defects, the bottom surface of the coin feed disc will not come into uniform contact with all the balls, resulting in rattling.
Furthermore, if the bolt is tightened too much, the contact pressure with the ball becomes excessive, resulting in a problem that reliable operation of the device is hindered.

The purpose of the present invention is to solve the above-mentioned problems, and eliminates the need for checking and adjustment after tightening, and by constantly applying an even pressing force to the center of the coin signal sending disk. It is an object of the present invention to provide a coin dispensing device equipped with a stirring member having a pressing function and a sufficient stirring function that can bring the lower surface of the outer peripheral edge into contact with all the balls on an inclined support plate with a predetermined and appropriate pressing force. do.

(Means for Solving the Problem) Therefore, according to the present invention, the coin feeding disk is rotated in a hopper in which coins are stored in bulk so that the coin feeding disk is rotated at an inclined position with respect to the horizontal. The outer peripheral edge of the lower surface is rotatably supported on an inclined support plate via a plurality of balls spaced apart in the circumferential direction, and the center part of the coin feeding disk is pressed toward the support plate. In a coin dispensing device attached to a rotating shaft, a stirring member is mounted on the shaft end of the rotating shaft with a screw, and this stirring member has a mounting boss portion 8 having a mounting hole 7 in the center, and a radially extending portion from this boss portion 8. A plurality of stirring arms 9 are integrally formed to extend in the radial direction, and a protrusion integrally provided on the lower surface 9b of the tip 9a of each stirring arm 9 in parallel with the axis of the mounting boss 8. 10, and a base 12a that surrounds the protrusion 10 and are integrally baked or fixed to the lower surface 9b of the tip 9a of the stirring arm 9 with an adhesive to form the stirring arm. A stirring claw portion 12 made of an elastomeric elastic body with a tapered thickness is provided which protrudes in the radial direction from the tip of the projection 9, and the thickness t of the attachment portion of the stirring claw portion 12 is made slightly smaller than the height h of the protrusion 10 by a required amount. The main feature is that the lower part 12a of the stirring claw part 12 slightly protrudes downward from the lower end 10a of the rigid projection 10.

(Function) According to the present invention, since the stirring member made of an elastomer-like elastic body has a composite structure, the screw 13 is inserted into the mounting hole 7 of the central mounting boss portion 8 of the rigid main body portion 11.
By screwing the screw 13 into the screw hole 17 of the rotating shaft 16 located in the center hole 15 of the coin feeding disk 3 and tightening it, the stirring claw portion 12 of the elastic body protrudes by the stirring arm portion 9 of the rigid main body portion 11. 10 is elastically compressed in proportion to the amount of the portion 12a protruding downward from the lower end of the coin feeding disk 3, and as a result, the center of the coin feeding disk 3 is always pressed toward the inclined support plate 1 with a predetermined pressing force, and the coin feeding disk 3 is A projection 10 is formed on the race surface 18 of the outer peripheral edge 3a of the plate 3 and the ball 20 in the retainer 19.
The contact is pressed with a predetermined pressing force determined by the dimensional difference between the stirring claw attachment portion and the stirring claw attachment portion.

Thereby, it is possible to improve the assembly efficiency of the device and automatically ensure a certain level of quality.

(Embodiment) In a preferred embodiment of the present invention shown in FIGS. 1 and 2, a rigid main body portion 11 is integrally molded with metal die casting, and a mounting boss portion 8 having a mounting hole 7,
a stirring arm 9 extending in the radial direction;
A protrusion 10 is provided that protrudes downward from the lower surface 9b of the tip portion 9a of the three stirring arms 9, and a base portion 12a surrounds the protrusion 10 on the lower surface 9b of the tip portion 9a of the three stirring arms 9, and is attached by baking or gluing, etc. The lengths of two of the three stirring claw portions 12 of the fixed rubber-moving elastomer elastic body are shortened so that an appropriate stirring force can be obtained.

Further, the thickness t of the stirring claw portion 12 is made larger than the height h of the protrusion 10 by a predetermined amount, so that the lower end 12a of the stirring claw portion 12 slightly protrudes from the lower end 10a of the protrusion 10. This ensures that the required pressing force is obtained.

(Effects of the invention) According to the invention, it is possible to improve the assembly efficiency of the device and automatically ensure a certain required quality.

[Brief explanation of drawings]

Fig. 1 is a plan view of the pressing attachment/stirring member according to the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 shows how the coin feeding disk is attached by the member shown in Fig. 1. FIG. 4 is a perspective view of a conventional coin dispensing device, and FIG. 5 is a plan view of a conventional stirring member. 1... Inclined support plate, 2... Hopper, 3... Coin feeding disc, 7... Mounting hole, 8... Mounting boss part,
9... Stirring arm portion, 10... Protrusion, 11... Main body portion, 12... Stirring claw portion, 13... Screw, 16...
...rotating shaft, 19...retainer, 20...ball.

Claims (1)

[Scope of utility model registration request] A plurality of balls spaced apart in the circumferential direction on the outer periphery of the lower surface of the coin feeding disk so that the coin feeding disk can be rotated at an inclined position with respect to the horizontal in a hopper that stores coins in bulk. In the coin feeding device, the coin feeding device is rotatably supported on an inclined support plate through a rotary shaft, and is attached to a rotating shaft by pressing the center portion of the coin feeding disk toward the supporting plate, and a coin feeding device is mounted on a shaft end of the rotating shaft. A stirring member is attached with a screw, and the stirring member has a mounting boss portion 8 having a mounting hole 7 in the center, and a plurality of stirring arms 9 integrally formed and extending radially from the boss portion 8. and a protrusion 10 integrally protruding from the lower surface 9b of the tip 9a of each stirring arm 9 in parallel with the axis of the mounting boss 8;
2a surrounds the protrusion 10 and the tip 9 of the stirring arm 9
a stirring claw portion 1 made of an elastomeric elastic body having a tapered thickness and protruding in the radial direction from the tip of the stirring arm portion 9, which is integrally baked or fixed with adhesive to the lower surface 9b of a;
2, and the thickness t of the attachment part of the stirring claw part 12 is slightly larger than the height h of the projection 10 by the required amount, so that the stirring claw part 12 is lower than the lower end 10a of the rigid projection 10.
A coin dispensing device characterized in that a lower portion 12a of the coin dispensing device slightly protrudes downward.