Browse Prior Art Database

Method for a clip on retention spring for process carriers

IP.com Disclosure Number: IPCOM000020159D
Publication Date: 2003-Oct-29
Document File: 3 page(s) / 122K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a clip on retention spring for process carriers. Benefits include improved functionality.

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Method for a clip on retention spring for process carriers

Disclosed is a method for a clip on retention spring for process carriers. Benefits include improved functionality.

Background

Process carrier cost reduction is an established requirement.

Another requirement is reducing assembly-related carrier defects and damage to carrier springs. Carrier defects cause force imbalance. The four or more carrier springs are fragile. Damaged springs and imbalanced force make the entire carrier unusable.

Conventional carriers are assembled by prepositioning the retention springs then welding them into place. This procedure comprises two process steps. If the spring position is not set accurately, force imbalance occurs in adjoining pockets and can result in an out-of-specification condition. A carrier with welded springs cannot be reworked (see Figure 1).

General description

The disclosed method is a clip-on retention spring, using mechanical fastening features. The spring is used in tandem with a dynamically balanced design for fully floating force equalization.

         The key elements of the method include:

•         Stamped mechanical fastening features

•         Force-equalizing neck design

Advantages

         The disclosed method provides advantages, including:

•         Improved functionality due to providing a dynamically balanced design for fully floating force equalization

•         Improved cost effectiveness due to lower cost assembly

Detailed description

The disclosed method is a clip-on retention spring. The ge...