Weight vessel of construction database for correcting outputs of load measurement sensing devices

• US 6,412,327 B1
• Filed: 11/15/2000
• Issued: 07/02/2002
• Est. Priority Date: 08/25/1995
• Status: Expired due to Fees

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Komata, Chikara, Muramatsu, Mitsuhide, Su, Laiping
• Primary Examiner(s): NOLAND, THOMAS
• Application Number:
  US09/712,205
• Time in Patent Office: 594 Days
• Field of Search: 73/11.3, 73/17.3, 73/17.4, 73/13.6, 733/23, 734/27, 732/96, 177/50, 177/253, 177/254, 177/260, 702/101, 702/102, 702/108, 702/41, 702/42, 280/DIG.1
• US Class Current: 73/1.13
• CPC Class Codes: G01G 19/12 having electrical weight-sensitive devices
• CPC Class Codes: G01G 21/26 Counterweights; Poise-weights; Sets of weights; Holders for the reception of weights
• CPC Class Codes: G01G 23/01 Testing or calibrating of weighing apparatus

Abstract

A weight vessel adapted for constructing a database for correcting outputs of load measurement sensing devices, in which the weight of the weight vessel can be changed in a desired arbitrary pitch without requiring any superfluous labor, any equipment such as a balance weight, and any dangerous work. The weight vessel includes: a vessel body shaped like a hollow box so that a liquid can be reserved in the inside of the vessel body. An injection inlet is formed in an upper portion of the vessel body and a discharge outlet is formed in a lower portion of the vessel body. A scale is formed on a side portion of the vessel body for indicating a value corresponding to the amount of the liquid reserved in the vessel body. At least the side portion provided with the scale thereon in the sides of the vessel body is formed of a transparent or semitransparent member so that the amount of the liquid in the vessel body can be seen through the transparent or semitransparent member.

Claims

1. A weight vessel for constructing a database for correcting outputs of load measurement sensing devices, comprising:

a vessel body shaped like a hollow box so that a liquid can be reserved in the inside of said vessel body;

an injection inlet formed in an upper portion of said vessel body;

a discharge outlet formed in a lower portion of said vessel body; and

a scale formed on a side portion of said vessel body so as to indicate a value corresponding to the amount of the liquid reserved in said vessel body;

wherein at least said side portion provided with said scale in side portions of said vessel body is formed of a transparent or semitransparent member so that the amount of the liquid in the vessel body can be seen through said transparent or semitransparent member;

further wherein rotatable caster wheels are attached to at least three corner portions on a lower end of said vessel body to thereby make said vessel moveable.

2. A weight vessel according to claim 1, wherein shock absorbers are interposed between corner portions of said vessel body and said caster wheels respectively so that said shock absorbers can be expanded/contracted to come near to/go far from a ground surface of said caster wheels and so that said vessel body is urged to go far from the ground surface with respect to said caster wheels against loads of said vessel body and said liquid in said vessel body.

3. A weight vessel according to claim 2, wherein said shock absorbers are contracted to bring said vessel body into contact with said ground surface when the amount of the liquid in said vessel body reaches a predetermined value, and wherein contraction limiting members are further provided so that the contraction of said shock absorbers is limited in the condition that said vessel body is brought into contact with said ground surface.

4. A weight vessel according to claim 1, wherein said vessel is sized to be used in a vehicle.