Browse Prior Art Database

Jam-Free Coin-Singling Mechanism

IP.com Disclosure Number: IPCOM000039231D
Original Publication Date: 1987-May-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Hada, T: AUTHOR [+3]

Abstract

In the coin-singling mechanism for the coin dispenser, coin depository, coin selector and so on comprising, as shown in Fig. 1, a singling box 1 into which a plurality of coins 2 are randomly thrown at the upper side and a rotary disk 3 provided with five recesses 3a each accepting one coin at a time and releasing it to the lower side of the box 1 through an opening (not shown) on a stationary plate under the disk as the disk is continuously rotated by a motor 4 through a conventional shaft and bevel gear mechanism, a newly designed clutch is provided at the rear of the disk on the drive shaft for automatically releasing coin 2a jammed at the recess 3a, as shown in Fig. 2. Referring to Fig.

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Jam-Free Coin-Singling Mechanism

In the coin-singling mechanism for the coin dispenser, coin depository, coin selector and so on comprising, as shown in Fig. 1, a singling box 1 into which a plurality of coins 2 are randomly thrown at the upper side and a rotary disk 3 provided with five recesses 3a each accepting one coin at a time and releasing it to the lower side of the box 1 through an opening (not shown) on a stationary plate under the disk as the disk is continuously rotated by a motor 4 through a conventional shaft and bevel gear mechanism, a newly designed clutch is provided at the rear of the disk on the drive shaft for automatically releasing coin 2a jammed at the recess 3a, as shown in Fig. 2. Referring to Fig. 3, the clutch comprises a driven shaft 5 fixed to the disk and a ball plunger 6 biased by a spring 7 against a cam 8 fixed to the drive shaft 9. As the shaft 9 is normally rotated in the direction A, the plunger 6 is engaged with a slope 8a on the cam to rotate the disk together with the shaft 9.

(Image Omitted)

When the coin jam occurs on the disk, the rotation of the disk is locked by the jammed coin, so that plunger 6 runs onto the higher surface of the cam to operatively disconnect the disk from the drive shaft 9. This prevents the motor 4 from being overloaded by the disk locking. After further rotation of the shaft 9, the plunger 6 is brought into the lower surface of the cam through a slope 8b. At the time, the plunger 6 is forced to mov...