JPH0295828U

JPH0295828U -

Info

Publication number: JPH0295828U
Application number: JP356689U
Authority: JP
Priority date: 1989-01-18
Filing date: 1989-01-18
Publication date: 1990-07-31

Description

[Brief explanation of the drawing]

第１図および第２図は、共に本考案に係るひず
みゲージ式変換器の防湿構造の一実施例である荷
重変換器の防湿構造を示すもので、このうち、第
１図は、縦断側面図、第２図は、正面図、第３図
および第４図は、第１の従来例に係るもので、こ
のうち、第３図は、従来の荷重変換器の防湿構造
を示す正面図、第４図は、第３図Ａ―Ａ線矢視方
向断面を部分的に示す断面図、第５図は、第２の
従来例に係る荷重変換器の防湿構造の断面を第４
図と同様にして示した断面図である。１……起歪体、２……貫通孔、３，４……スリ
ツト、６……受感ビーム、７，９……連結剛体部
、８……荷重導入ビーム、１０……荷重支持ビー
ム、１１……端子室、１４……接続ケーブル、１
５……プリント基板、１６……接続線、１７……
ゲージ側接続線、１８……蓋部材、２０……モー
ルド部材、２１……シーリング部材、２２……円
筒部、２３……フランジ部、２４……嵌合部、２
５……接着剤、２６……微小空間。 Figures 1 and 2 both show a moisture-proof structure for a load transducer, which is an example of the moisture-proof structure for a strain gauge type transducer according to the present invention. , FIG. 2 is a front view, and FIGS. 3 and 4 are related to the first conventional example. Of these, FIG. 3 is a front view showing the moisture-proof structure of a conventional load converter, and FIG. 4 is a cross-sectional view partially showing a cross section in the direction of the arrow A-A in FIG. 3, and FIG.
It is a sectional view shown similarly to the figure. DESCRIPTION OF SYMBOLS 1...Strain body, 2...Through hole, 3, 4...Slit, 6...Sensing beam, 7, 9...Connecting rigid body part, 8...Load introduction beam, 10...Load supporting beam, 11...Terminal room, 14...Connection cable, 1
5...Printed circuit board, 16...Connection line, 17...
Gauge side connection wire, 18... Lid member, 20... Mold member, 21... Sealing member, 22... Cylindrical part, 23... Flange part, 24... Fitting part, 2
5...Adhesive, 26...Minute space.

Claims

[Scope of utility model registration request]

In a strain gauge type transducer that converts the magnitude of a load applied to a load introducing portion of a strain generating body into an electrical quantity by a strain gauge attached to a sensing portion of the strain generating body, the sensing portion A strain-generating body has a circular through-hole penetrating from one side to the other side, and a strain gauge attached to the inner wall of the through-hole, and the overall shape is approximately cylindrical. The diameter is slightly smaller than the inner diameter of the through hole, and flanges are provided at both ends of the cylindrical portion, each having a diameter larger than the inner diameter of the through hole and spaced apart from each other at intervals slightly shorter than the axial length of the through hole. a sealing member made of an integrally formed flexible elastic body, the cylindrical part of the sealing member is fitted into the through hole, and the pair of flange parts are arranged on one side and the other side of the sensing part. A moisture-proof structure for a strain gauge type transducer, characterized in that the strain gauge is configured to be engaged and fixed with an adhesive or the like to isolate the strain gauge from outside air.