Weight measurement device and load cell unit

Patent metadata

Field	Value
Publication number	US-12298174-B2
Application number	US-202217680159-A
Country	US
Kind code	B2
Filing date	Feb 24, 2022
Priority date	Sep 6, 2019
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

A weight measurement device comprises: a housing cover to receive weight of a measurement target; a plurality of load cells to support the housing cover and detect the weight; a housing base comprising, for each of the plurality of load cells, a recessed and projected shape part comprising: a recessed part open upward to at least partially contain each load cell and fix the load cell; and a projected part projected downward corresponding to the recessed part; and an adjustment leg which at least partially contains the recessed and projected shape part, and comprises an adjustment mechanism part for height position adjustment at a position opposed to a side part of the recessed and projected shape part.

First claim

The invention claimed is:

1. A weight measurement device comprising:
a housing cover to receive weight of a measurement target;
a plurality of load cells to support the housing cover and detect the weight;
a housing base comprising, for each of the plurality of load cells, a recessed and projected shape part comprising: a recessed part open upward to at least partially contain each load cell and fix the load cell; and a projected part projected downward corresponding to the recessed part, wherein a surface of the recessed part is situated inside the recessed and projected shape part, and a surface of the projected part is situated outside the recessed and projected shape part opposing the surface of the recessed part; and
an adjustment leg which at least partially contains the recessed and projected shape part, and comprises an adjustment mechanism part for height position adjustment at a position opposed to a side part of the recessed and projected shape part.

2. The weight measurement device according to claim 1 ,
wherein the adjustment mechanism part is a pair of screw parts screwed with each other to move up and down.

3. The weight measurement device according to claim 2 ,
wherein the pair of screw parts are a male screw part whose screw groove is provided along periphery of a side part of the projected part of the recessed and projected shape part, and a female screw part screwed with the male screw part to move up and down.

4. A load cell unit comprising:
a load cell to detect weight of a measurement target;
a housing base comprising a recessed and projected shape part comprising: a recessed part open upward to at least partially contain the load cell and fix the load cell; and a projected part projected downward corresponding to the recessed part, wherein a surface of the recessed part is situated inside the recessed and projected shape part, and a surface of the projected part is situated outside the recessed and projected shape part opposing the surface of the recessed part; and
an adjustment leg which at least partially contains the recessed and projected shape part, and comprises an adjustment mechanism part for height position adjustment at a position opposed to a side part of the recessed and projected shape part.

5. The load cell unit according to claim 4 ,
wherein the adjustment mechanism part is a pair of screw parts screwed with each other to move up and down.

6. The load cell unit according to claim 5 ,
wherein the pair of screw parts are a male screw part whose screw groove is provided along periphery of a side part of the projected part of the recessed and projected shape part, and a female screw part screwed with the male screw part to move up and down.

7. A weight measurement device comprising:
a plurality of load cell units placed in a plane; and
a common cover placed on the plurality of load cell units, wherein each of the plurality of load cell units comprises:
a load cell to detect weight of a measurement target;
a housing base comprising a recessed and projected shape part comprising: a recessed part open upward to at least partially contain the load cell and fix the load cell; and a projected part projected downward corresponding to the recessed part, wherein a surface of the recessed part is situated inside the recessed and projected shape part, and a surface of the projected part is situated outside the recessed and projected shape part opposing the surface of the recessed part; and
an adjustment leg which at least partially contains the recessed and projected shape part, and comprises an adjustment mechanism part for height position adjustment at a position opposed to a side part of the recessed and projected shape part.

8. The weight measurement device according to claim 7 ,
wherein the adjustment mechanism part is a pair of screw parts screwed with each other to move up and down.

9. The weight measurement device according to claim 8 ,
wherein the pair of screw parts are a male screw part whose screw groove is provided along periphery of a side part of the projected part of the recessed and projected shape part, and a female screw part screwed with the male screw part to move up and down.

10. The weight measurement device according to claim 1 , wherein the recessed and projected shape part is a single part.

11. The load cell unit according to claim 4 , wherein the recessed and projected shape part is a single part.

12. The weight measurement device according to claim 7 , wherein the recessed and projected shape part is a single part.

Assignees

• Tanita Seisakusho Kk

Inventors

• Honda Akihisa

Classifications

• G01G21/08

  Bearing mountings or adjusting means therefor · CPC title

• G01G5/003

  load-cell construction or mountings · CPC title

• G01G21/28 Primary

  Frames, Housings · CPC title

• G01G23/00

  Auxiliary devices for weighing apparatus · CPC title

• G01G23/002 Primary

  Means for correcting for obliquity of mounting (for pendulum-weight apparatus G01G1/16) · CPC title