JPH025039U

JPH025039U -

Info

Publication number: JPH025039U
Application number: JP8336588U
Authority: JP
Priority date: 1988-06-23
Filing date: 1988-06-23
Publication date: 1990-01-12

Description

[Brief explanation of drawings]

第１図はこの考案の第１実施例の部分縦断正面
図、第２図は同実施例の平面図、第３図はこの考
案の第２実施例の部分縦断正面図、第４図はこの
考案の第３実施例の部分縦断正面図、第５図は従
来の密閉型荷重検出器を示しａは部分縦断正面図
、ｂは部分断面平面図、第６図は従来のラビリン
ス型防水構造の荷重検出器の部分縦断正面図であ
る。１１，１１ａ，１１ｂ……ロードセル、１２…
…防水ケース、１３……荷重受台、１４，１４ａ
，１４ｂ……結合部材、１５……蛇腹、１６，１
６ａ……第２蛇腹、２１，２１ａ，２１ｂ……荷
重印加部、２２，２２ａ，２２ｂ……固定側部分
、２７……間隙、３３，３３ａ，３３ｂ……荷重
検出器、３５……小孔（気圧平衡手段）。 Fig. 1 is a partial longitudinal sectional front view of the first embodiment of this invention, Fig. 2 is a plan view of the same embodiment, Fig. 3 is a partial longitudinal sectional front view of the second embodiment of this invention, and Fig. 4 is a partial longitudinal sectional front view of the second embodiment of this invention. FIG. 5 is a partial vertical front view of the third embodiment of the invention; FIG. 5 shows a conventional sealed load detector; a is a partial vertical front view; b is a partial sectional plan view; FIG. FIG. 3 is a partially vertical front view of the load detector. 11, 11a, 11b...Load cell, 12...
...Waterproof case, 13...Load cradle, 14, 14a
, 14b... Connection member, 15... Bellows, 16, 1
6a...Second bellows, 21, 21a, 21b...Load application section, 22, 22a, 22b...Fixed side portion, 27...Gap, 33, 33a, 33b...Load detector, 35...Small hole (Air pressure balancing means).

Claims

[Claims for Utility Model Registration] (1) A load cell is provided in a waterproof case, and the waterproof case is connected to the waterproof case by a connecting member having a rod-shaped portion passing through the load cell with a gap in the load application direction. A load receiving part disposed outside and a load applying part of the load cell are fixedly connected, one end is connected around the penetration part of the waterproof case through which the rod-like part penetrates, and the other end is connected to the load receiving part or the connecting member. A load detector comprising a bellows that is coupled and whose expansion/contraction direction coincides with the load application direction. (2) In the load detector according to claim (1), the bellows and the elastic modulus are provided between a portion of the waterproof case opposite to the portion penetrated by the coupling member and a portion continuous to the load application portion. A load detector comprising: a second bellows having substantially equal values; the second bellows partitions the inside and outside of the waterproof case, and the direction of expansion and contraction coincides with the direction of load application. (3) The load detector according to claim (1), wherein the load detector is provided with pressure balancing means inside and outside the waterproof case.