| 摘要 |
A pinch roller is be retrofitted to existing automatic teller machines (ATMs) to eliminate misfeeding of deposit envelopes. The pinch roller is secured between the frame members for the conveyor belts which serve to transport the envelopes. The pinch roller mechanism can be adapted to the ATMs without the necessity of drilling new holes into the frame members since an existing hole (previously unused) and a bolt are used for securing the pinch roller mechanism. Specifically, the pinch roller is located between the frame members above the foam-like drive roller for the conveyor belt. A pinch roller axle, in the form of a hex-head bolt having its other end provided with internal screw threads, passes through an aperture already existing in one of the frame members and is secured to an exposed bolt, securing a motor housing to the frame members. Also, the pinch roller is chamfered on its ends to facilitate ease of insertion between the frame members. The pinch roller axle is also chamfered and is adapted to be received in the aperture for the bolt holding the motor housing to the frame member. The length of the pinch roller is such as to permit slight lateral movement of the pinch roller to facilitate visual alignment of the pinch roller axle and its internal threading onto the exposed bolt holding the housing to the frame member. The pinch roller, when properly secured between the frame members, serves to provide sufficient back pressure to the foam-like drive roller for the conveyor belt so that any slack is eliminated and even extremely bulky envelopes are properly fed through the conveyor belts.
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