Sample measuring device
AssigneeHitachi, Ltd.
InventorTomonori Hanaya
Life of this patent
Estimating the term…
Abstract
In this sample measuring device a lifting mechanism conveys a sample container from a rack to a sample measuring chamber. An inside light-shielding structure is extended over the upper surface of a base frame and the lower surface of a head, and surrounds a shaft. The inside light-shielding structure is configured from a first ring groove and a first ring protrusion. When the head is in a ground state, the upper surface of the base frame and the lower surface of the head are contacted by the action of a spring. At this time, the first ring groove and the first ring protrusion are integrated. An outside light-shielding structure is provided to the periphery of the inside light-shielding structure. A top plate contains a laminate structure which includes a lightshielding sheet and a lightreflecting plate.
Claims8
A sample measurement device, comprising:
- a transporting mechanism that transports a rack on a transport surface;
- a sample measurement chamber with a measurement device, provided below the transport surface and in which a sample container from the rack is stored and measured;
- a base frame that forms a bottom of the sample measurement chamber;
- and
- a lifting/lowering mechanism that has a shaft penetrating through the base frame in an up-and-down direction and a head provided at an upper end of the shaft and on which the sample container is placed, and that transports the sample container between the rack and the sample measurement chamber, wherein
- an upper surface of the base frame and a lower surface of the head are joined in a base state where the shaft is lowered to a lowermost end, and
- a light-shielding structure is provided over the upper surface of the base frame and the lower surface of the head in a manner to surround the shaft, wherein the light-shielding structure has:
- a ring-shaped protrusion provided on one of the upper surface of the base frame and the lower surface of the head;
- a ring-shaped recess provided on the other of the upper surface of the base frame and the lower surface of the head, and
- the ring-shaped protrusion and the ring-shaped recess are combined in the base state.
Dependencies are inferred from the claim text.