Browse Prior Art Database

Plastic Cover Latch Mechanism

IP.com Disclosure Number: IPCOM000044149D
Original Publication Date: 1984-Nov-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 63K

Publishing Venue

IBM

Related People

Kimura, H: AUTHOR

Abstract

In a plastic box for a terminal unit such as cassette tape unit, printer etc., consisting of a main cover and a top cover pivotally mounted on the main cover, a mechanism is molded with these covers for latching the top cover to be positively closed against an elastic bias provided thereon and for releasing it to be slightly lifted over the main cover by the elastic bias so that the top cover can be manually lifted more to open the box. In Fig. 1, the top cover 1 is provided with a pair of fingers 2 and a rib 3. The main cover 4 is equipped with a pushbutton 5 supported by an elastic arm 6. The arm 6 has skirts 7 for receiving the fingers to keep engaged when the top cover 1 is pushed down. Further, the main cover 4 has an elastic plate 8 molded thereon. As shown in Fig.

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Plastic Cover Latch Mechanism

In a plastic box for a terminal unit such as cassette tape unit, printer etc., consisting of a main cover and a top cover pivotally mounted on the main cover, a mechanism is molded with these covers for latching the top cover to be positively closed against an elastic bias provided thereon and for releasing it to be slightly lifted over the main cover by the elastic bias so that the top cover can be manually lifted more to open the box. In Fig. 1, the top cover 1 is provided with a pair of fingers 2 and a rib 3. The main cover 4 is equipped with a pushbutton 5 supported by an elastic arm 6. The arm 6 has skirts 7 for receiving the fingers to keep engaged when the top cover 1 is pushed down. Further, the main cover 4 has an elastic plate 8 molded thereon. As shown in Fig. 2A, the top cover 1 is pushed down to latch the fingers 2 with the skirts 7 against the elasticity of the plate 8 being deformed by the rib 3. When the button 5 is pushed down by an operator, as shown in Fig. 2B, the skirts 7 release the fingers 2 from latching. Then, as shown in Fig. 2C, the top cover 1 is slightly lifted up by the elastic force of the deformed plate 8, so that the operator can manually lift up the plate 8 to open the box.

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