JPH047349U

JPH047349U -

Info

Publication number: JPH047349U
Application number: JP4704790U
Authority: JP
Priority date: 1990-05-02
Filing date: 1990-05-02
Publication date: 1992-01-23

Description

[Brief explanation of the drawing]

第１図は実施例に係るホース内面かたさ試験機
の概略を示す部分砕斜視図で、レバーを押し込ん
でカバーを開いた状態を示す。第２図はホース内
面かたさ試験機の部分砕側面図、第３図は第２図
におけるＡ−Ａ断面図、第４図は測定部の部分砕
側面図、第５図は板ばねの前端部分の斜視図、第
６図は押針の斜視図、第７図は押針に加わる荷重
と、歪ゲージが検出する歪量およびゴムかたさと
の関係を示す図、第８図および第９図は従来のゴ
ムかたさ試験機の正面図、第１０図は油圧ホース
の先端部分を示す部分砕側面図である。１……測定部本体、２……板ばね、３……歪ゲ
ージ、４……押針、５……試験機本体、６……カ
バー、６ａ……支持ピン、６ｂ……ピン、７……
カム、７ａ……スライド溝、８……押棒、９……
レバー、９ａ……ピン、１０……コイルばね。 FIG. 1 is a partially exploded perspective view schematically showing a hose inner surface hardness tester according to an embodiment, showing a state in which a lever is pushed in and a cover is opened. Figure 2 is a partially crushed side view of the hose inner hardness tester, Figure 3 is a sectional view taken along line A-A in Figure 2, Figure 4 is a partially crushed side view of the measuring section, and Figure 5 is the front end of the leaf spring. Figure 6 is a perspective view of the indenter, Figure 7 is a diagram showing the relationship between the load applied to the indenter, the amount of strain detected by the strain gauge, and the hardness of the rubber, and Figures 8 and 9 are FIG. 10 is a front view of a conventional rubber hardness tester, and a partially exploded side view showing the tip of a hydraulic hose. DESCRIPTION OF SYMBOLS 1... Measuring unit body, 2... Leaf spring, 3... Strain gauge, 4... Indenter, 5... Testing machine main body, 6... Cover, 6a... Support pin, 6b... Pin, 7... …
Cam, 7a...Slide groove, 8...Push bar, 9...
Lever, 9a...pin, 10...coil spring.

Claims

[Scope of utility model registration request]

It is an opening/closing device for a cover 6 that is fixed to the front end of the testing machine body 5 and covers the upper surface of the measuring section, which is made up of a leaf spring 2 to which a strain gauge 3 is attached, an indenter 4, and a measuring section main body 1. A cover 6 that is pivotally attached to the main body 1 with a support pin 6a is provided with a cam 7, a push rod 8, a lever 9, and a coil spring 10 that biases the push rod 8 toward the lever 9 side. It is a cam whose forked front end is locked to the cover 6 with a pin 6b, and has a groove 7a in which this pin 6b slides, and whose rear end is fixed to the front end of the push rod 8. A cover opening/closing device for a hose inner surface hardness tester, characterized in that it is a lever that is connected to the rear end with a pin 9a and rotates about the connection part with the tester main body 5 as a fulcrum.