JPH047348U

JPH047348U -

Info

Publication number: JPH047348U
Application number: JP4704690U
Authority: JP
Priority date: 1990-05-02
Filing date: 1990-05-02
Publication date: 1992-01-23

Description

[Brief explanation of drawings]

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、１ａ……孔、２……板ばね
、２ａ……長孔、３……歪ゲージ、３ａ……リー
ド線、４……押針、４ｄ……抜け止めピン、５…
…試験機本体、５ａ……軸、５ｂ……ばね室、５
ｃ……ハンドル、６……カバー、６ａ……支持ピ
ン、６ｂ……ピン、７……カム、８……押棒、９
……レバー、１０……コイルばね、１１……かた
さ表示器。 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. 1... Measuring unit body, 1a... Hole, 2... Leaf spring, 2a... Long hole, 3... Strain gauge, 3a... Lead wire, 4... Push needle, 4d... Retaining pin, 5 …
...Testing machine body, 5a... Axis, 5b... Spring chamber, 5
c...Handle, 6...Cover, 6a...Support pin, 6b...Pin, 7...Cam, 8...Push bar, 9
... Lever, 10 ... Coil spring, 11 ... Hardness indicator.

Claims

[Scope of utility model registration request]

The measuring section includes a measuring section, a testing machine main body, a cover, a cover opening/closing device, and a stiffness indicator, and the measuring section has a rear end of a leaf spring 2 to which a strain gauge 3 is attached fixed to the measuring section main body 1. , a pusher needle 4 is inserted through a long hole 2a provided at the front end of the leaf spring 2 and a hole 1a provided at the front end of the measuring section main body 1, and whose tip protrudes from the measuring section main body 1. A retaining pin 4d is inserted through the indenter 4 so that it comes into line contact with the lower surface of the leaf spring 2 when pushed up, and the tester main body has a measuring unit main body 1 attached to the front end of a tubular shaft 5a. A spring chamber 5b and a handle 5c are fixed to the rear end of the cover, and the cover is pivoted to the measuring section main body 1 with a support pin 6a so as to cover the front end of the measuring section, and a cover opening/closing device. The cover opening/closing device includes a cam 7 locked to the cover 6 with a pin 6b, a lever 9 pivoted to the rear end of the tester main body 5, and a shaft 5a of the tester main body 5.
The hardness indicator is made up of a push rod 8 that is inserted into the inside and connects the cam 7 and the lever 9, and a coil spring 10 that biases the push rod 8 toward the lever 9. A hose inner surface hardness tester characterized in that the hardness indicator 11 is connected to a strain gauge 3 via a hardness indicator 11.