LOAD MEASURING MECHANISM FOR ELECTRONIC BALANCE,AND METHOD FOR ASSEMBLING THE SAME MECHANISM

Title:

LOAD MEASURING MECHANISM FOR ELECTRONIC BALANCE,AND METHOD FOR ASSEMBLING THE SAME MECHANISM

Document Type and Number:

WIPO Patent Application WO/2007/129718

Kind Code:

A1

Abstract:

An integral type second lever constituting member (A) is mounted on a constitution, in which a first lever member (5) is assembled in a Roberval's mechanism composed of a stationary block (1), a floating frame (2) and upper and lower sub-levers (3, 4). The integral type second lever constituting member (A) is mounted by mounting a force point portion (9) and a fulcrum portion (8) on the Roberval's mechanism through screw-fastened holes (8a, 9a), thereby to assemble a load measuring mechanism as a whole. At the screw-fastening time, the turning torque of the screw is supported by a connecting portion (10), and this connecting portion (10) is removed after the integral type second lever constituting member (A) was mounted. In the load measuring mechanism of an electronic balance, the second lever member can be mounted easily and reliably.

Inventors:

IZUMO NAOTO (JP)
SUZAKI SATOSHI (JP)

Application Number:

PCT/JP2007/059538

Publication Date:

November 15, 2007

Filing Date:

April 27, 2007

Export Citation:

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Assignee:

A & D CO LTD (JP)
IZUMO NAOTO (JP)
SUZAKI SATOSHI (JP)

International Classes:

G01G21/16; G01G21/24; G01G23/02

Foreign References:

JPH05196492A	1993-08-06
JP2000283829A	2000-10-13
JP2001066178A	2001-03-16
JP2003004011A	2003-01-08
JPS645127A	1989-01-10
JP2002148105A	2002-05-22
JP2570405B2	1997-01-08
JP2001066178A	2001-03-16
JP2000283829A	2000-10-13
US4799561A	1989-01-24
US5962818A	1999-10-05
US6472618B1	2002-10-29
US6787714B2	2004-09-07
US6861593B2	2005-03-01
EP1189043A1	2002-03-20
DE19804439C1	1999-06-02
DE1034272B	1958-07-17
DE10332400B3	2004-09-16

Other References: