Importance

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Abstract

An analyzing apparatus has a partition dividing the interior of a housing into a lower space accommodating a power supply/control unit which generates heat and a duct and an upper space accommodating other units. Heat generated by cooling devices is exhausted to the exterior of the housing through the duct while the heat generated by the power supply/control unit is otherwise exhausted to the exterior. This construction makes it possible to achieve an improved heat exhaust efficiency and efficient cooling of a reaction unit provided in the upper space of the housing. A cover holding mechanism includes at least one each spring cam hinge and friction hinge. The spring cam hinge is formed of a cam mechanism and a spring which together produce a force acting on a cover in its opening or closing direction, the direction of the force reversing at a specific angle of the cover halfway between its open and closed positions, while the friction hinge produces a frictional force which works to hold the cover at any position between its open and closed positions. The spring produces an auxiliary force to facilitate cover-opening action, and the force produced by the spring works together with the frictional force to prevent the falling of the cover during its closing motion, enabling smooth cover-opening and closing actions.

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First Claim