Holder for punched sheets of paper has oblong base plate with hooped bars with closing section fixed on connecting rod and secured by an engagement member engaging on plate in closed position

摘要

The holder comprises an oblong base plate (1) with hooped bars (4, 5) each with an upright receiving section (4) and a closing section (5), with all the closing sections fixed on a connecting rod (2). An engagement member (7) on the connecting rod in the closed position engages in an engagement area (13) on the base plate which makes it difficult to turn the connecting rod. The connecting rod can be biased in the opening position through a spring (14).