JPH0267133U

JPH0267133U -

Info

Publication number: JPH0267133U
Application number: JP14343388U
Authority: JP
Priority date: 1988-11-04
Filing date: 1988-11-04
Publication date: 1990-05-21

Description

[Brief explanation of drawings]

第１図は本考案の第１の構成を示しＡは板バネ
の平面図、Ｂは側面図、第２図Ａは第２の構成の
板バネの平面図、Ｂは側面図、第３図Ａは第３の
構成の板バネの平面図、Ｂは側面図、第４図Ａは
第４の構成の板バネの平面図、Ｂは側面図、第５
図Ａは第５の構成の板バネの平面図、Ｂは側面図
、第６図Ａは第６の構成の板バネの平面図、Ｂは
側面図、第７図Ａは従来構成の板バネの平面図、
Ｂは側面図、第８図は衝撃吸収機構を有する電子
天秤機構部の縦断面図である。１，２，３，４，５，６……板バネ本体、１ａ
，２ａ，３ａ，４ａ，５ａ，５ｂ，６ａ，６ｂ…
…切欠き、１ｂ，４ｂ，６ｃ，６ｄ……開口、１
６……浮枠、３０……接続部材、３１……衝撃吸
収ロバーバル、３２，３３……板バネ、３２ａ，
３３ａ……薄肉部。 Fig. 1 shows the first configuration of the present invention, A is a plan view of the leaf spring, B is a side view, Fig. 2 A is a plan view of the plate spring of the second configuration, B is a side view, and Fig. 3 A is a plan view of the leaf spring of the third configuration, B is a side view, FIG. 4A is a plan view of the leaf spring of the fourth configuration, B is a side view,
Figure A is a plan view of the leaf spring with the fifth configuration, B is a side view, Figure 6A is a top view of the leaf spring with the sixth configuration, B is a side view, and Figure 7A is the leaf spring with the conventional configuration. plan view of
B is a side view, and FIG. 8 is a longitudinal sectional view of an electronic balance mechanism having a shock absorption mechanism. 1, 2, 3, 4, 5, 6...plate spring body, 1a
, 2a, 3a, 4a, 5a, 5b, 6a, 6b...
...Notch, 1b, 4b, 6c, 6d...Opening, 1
6... Floating frame, 30... Connection member, 31... Shock absorbing Roberval, 32, 33... Leaf spring, 32a,
33a... Thin wall portion.

Claims

[Scope of Claim for Utility Model Registration] (1) By forming a notch or opening in the leaf spring body, a reduced cross-sectional area is formed in a part of the leaf spring body, and this reduced cross-sectional area is defined as a stress concentration area. An elastic member characterized by eliminating a thin wall portion. (2) Utility model registration claim No. 1, which is characterized in that the entire leaf spring is formed by punching, including the formation of notches or openings.
The elastic member described in ). (3) The elastic member according to claim 1 or 2 of the utility model registration, characterized in that the reduced cross-sectional area portions are formed at two locations in the longitudinal direction of the leaf spring main body. (4) A Roberval mechanism that absorbs instantaneous large loads is arranged between the load applying part and the load transmitting part of the weighing device, and the two plate springs that make up this Roberval mechanism are arranged as described in (1) above. A shock absorption mechanism characterized by comprising an elastic member according to any one of items (3) to (3). (5) Utility model registration claim No. (4) characterized in that one end of the mechanism is connected to a tray holder, and the other end is directly or indirectly connected to a floating frame of a Roberval mechanism, which is a load transmission and guide mechanism. Shock absorption mechanism as described in section.