JPS6446706U

JPS6446706U -

Info

Publication number: JPS6446706U
Application number: JP14226187U
Authority: JP
Priority date: 1987-09-16
Filing date: 1987-09-16
Publication date: 1989-03-22

Description

[Brief explanation of the drawing]

第１図は正面図、第２図は平面図、第３図はＡ
−Ａ線拡大断面図、第４図はピニオン、遊動歯車
、従動歯車の関係を中心にした正面図、第５図は
使用状態の斜視図、第６図は同上の横断面図であ
る。１……クラツク挙動安定度測定器、２……左方
の測定器具部、３……右方の測定器具部、３Ｆ２
……指針、３Ｇ１……目盛り。 Figure 1 is a front view, Figure 2 is a plan view, Figure 3 is A.
-A line enlarged sectional view, FIG. 4 is a front view focusing on the relationship among the pinion, floating gear, and driven gear, FIG. 5 is a perspective view of the device in use, and FIG. 6 is a cross-sectional view of the same as above. 1...Crack behavior stability measuring instrument, 2...Left measuring instrument part, 3...Right measuring instrument part, 3F2
...Pointer, 3G1...scale.

Claims

[Scope of Claim for Utility Model Registration] 1. In the wall surface 4 of a concrete structure having a crack 4A that requires measurement, the crack 4A
Centering on the left wall 4B and the right wall 4C
, the left measuring instrument part 2 and the right measuring instrument part 3, which are respectively fixed, are connected to each other so as to be able to move forward and backward,
A crack behavior stability measuring device characterized in that it is configured to measure the behavior of concrete by indicating the movement of the crack 4A on a scale. 2. A crack behavior stability measuring instrument comprising a left measuring instrument section 2 and a right measuring instrument section 3 having the following requirements. B The above-mentioned left measuring instrument part 2 is a body plate-shaped body 2A.
A rack plate 2C is made to protrude rightward from the right end surface of
C1 must be engraved. (b) The measuring instrument section 3 on the right side is the body plate-shaped body 3A.
A recess 3C into which the rack plate 2C and the like can be inserted and removed is formed from the left to the right, and a pinion 3D that meshes with the rack 2C1 is provided in the recess 3C.
A driven gear 3F is disposed through a floating gear 3E, and a shaft 3F1 of this driven gear 3F is pulled out to the outside of the front side of the right measuring instrument section 3, and furthermore, a pointer 3F2 is attached to this shaft 3F1. In addition, a scale 3G1 corresponding to the pointer 3F2 is displayed on the front of the right measuring instrument section 3. 3. The crack behavior stability measuring device according to claim 2, wherein the diameters of the idle gear 3E and the driven gear 3F are the same, and are approximately 1/2 of the diameter of the pinion 3D. 4 Adhesive 2A1 is applied to the back surface of the left measuring instrument section, and adhesive 3A1 is applied to the back surface of the right measuring instrument section. The crack behavior stability measuring device according to item 3.