JPH0432046U

JPH0432046U -

Info

Publication number: JPH0432046U
Application number: JP7414990U
Authority: JP
Priority date: 1990-07-12
Filing date: 1990-07-12
Publication date: 1992-03-16
Anticipated expiration: 2005-07-12
Also published as: JPH0754832Y2

Description

[Brief explanation of the drawing]

第１図ａは本考案の一実施例に係る荷重検出器
を示す斜視図、第１図ｂは第１図ａのＩｂ矢視図
、第２図ａは従来の荷重検出器を示す斜視図、第
２図ｂは第２図ａのｂ矢視図、第３図ａ〜ｄは
第２図に示す従来の荷重検出器の一方の平行平板
構造を示す斜視図で、第３図ａは力Ｆｘが作用し
たときの変形、第３図ｂはモーメントＭｚが作用
したときの変形、第３図ｃは力Ｆｚが作用したと
きの変形、第３図ｄはモーメントＭｙが作用した
ときの変形を夫々示す図、第４図は平行平板構造
の各部の名称を説明するための説明図、第５図は
第２図に示す従来の荷重検出器の上面と下面に相
手部材との結合部を設けた状態を示す斜視図であ
る。１……ブロツク、１０，２０……平行平板構造
、１１，２１……貫通孔、１１ｆ，１１ｆ′，２
１ｆ，２１ｆ′……薄肉部、１２，１３，２２，
２３……剛体部、３０′，４０′……結合部、５
０……削り取り部、Ａ，Ｂ，Ｃ，Ｄ……側面、Ａ
′，Ｂ′，Ｃ′，Ｄ′……薄肉部に沿つた面部分
、Ｓｆｘ_１１〜Ｓｆｘ_１４，Ｓｆｙ_１１〜Ｓｆｙ
_１４，Ｓｆｚ_１１〜Ｓｆｚ_１８，Ｓｍｘ_１１〜Ｓ
ｍｘ_１４，Ｓｍｙ_１１〜Ｓｍｙ_１４，Ｓｍｚ_１１〜Ｓｍｚ_１４……ひずみゲージ。 Fig. 1a is a perspective view showing a load detector according to an embodiment of the present invention, Fig. 1b is a view taken along arrow Ib in Fig. 1a, and Fig. 2a is a perspective view showing a conventional load detector. , FIG. 2b is a view taken from arrow b in FIG. 2a, FIGS. 3a to 3d are perspective views showing one parallel plate structure of the conventional load detector shown in FIG. 2, and FIG. Deformation when force Fx is applied, Figure 3b shows deformation when moment Mz is applied, Figure 3c shows deformation when force Fz is applied, and Figure 3d shows deformation when moment My is applied. FIG. 4 is an explanatory diagram for explaining the names of each part of the parallel plate structure, and FIG. It is a perspective view showing the state where it was provided. 1...Block, 10,20...Parallel plate structure, 11,21...Through hole, 11f, 11f', 2
1f, 21f'...Thin wall portion, 12, 13, 22,
23...Rigid body part, 30', 40'...Connection part, 5
0...Scraped portion, A, B, C, D...Side surface, A
', B', C', D'... Surface portion along the thin part, Sfx ₁₁ ~ Sfx ₁₄ , Sfy ₁₁ ~ Sfy
₁₄ , Sfz ₁₁ ~Sfz ₁₈ , Smx ₁₁ ~S
mx ₁₄ , Smy ₁₁ ~ Smy ₁₄ , Smz ₁₁ ~Smz ₁₄ ...Strain gauge.

Claims

[Claims for Utility Model Registration] 1. A wide through hole opening on two opposing sides, and parallel rigid body parts above and below the through hole,
It has a hexahedral block in which two parallel plate structures each formed of thin walled portions on both sides of the through hole are disposed vertically and perpendicularly to each other. In a load detector comprising a strain gauge provided at a predetermined location, the width of each of the side surfaces is increased, and a part of the surface portion of each of the side surfaces along the thin wall portion is left at the predetermined location. A load detector characterized by being cut off. 2. Claim 1, characterized in that the block is provided on its upper and lower surfaces, respectively, with connecting portions to be connected to the mating member so that the entire portions are accommodated within the upper and lower surfaces.
Load detector as described.