JPS636323U

JPS636323U -

Info

Publication number: JPS636323U
Application number: JP9743386U
Authority: JP
Priority date: 1986-06-25
Filing date: 1986-06-25
Publication date: 1988-01-16
Also published as: JPH032829Y2

Description

[Brief explanation of the drawing]

第１図は本考案による昇降装置の頂面図である
。第２図は第１図の昇降装置の側面図である。第
３図は第２図の―線に沿つた断面図である。
第４図は第３図に示す回転カム部材の平面図であ
る。第５図は第４図の回転カム部材の側面図であ
る。第６図は第１図から第５図に示した昇降装置
を用いた電気式秤を示す図である。第７図は本考
案による昇降装置の動作のタイミングチヤートの
一例を示す図である。第８図は電気式秤を用いた
加熱乾燥式の水分計の透視図である。図面において、１０……電気式秤、１４……秤
部、１８……試料皿、３０……昇降装置、４４…
…回転カム部材、４８……形状記憶合金圧縮コイ
ル、５２……カム面、５４……支柱、６０……熱
源、６１……反射板、６２……風防、６３……囲
い。 FIG. 1 is a top view of the lifting device according to the present invention. FIG. 2 is a side view of the lifting device of FIG. 1. FIG. 3 is a sectional view taken along the line -- in FIG. 2.
FIG. 4 is a plan view of the rotary cam member shown in FIG. 3. FIG. 5 is a side view of the rotary cam member of FIG. 4. FIG. 6 is a diagram showing an electric scale using the lifting device shown in FIGS. 1 to 5. FIG. 7 is a diagram showing an example of a timing chart of the operation of the lifting device according to the present invention. FIG. 8 is a perspective view of a heat-drying type moisture meter using an electric scale. In the drawings, 10...electric scale, 14...weighing section, 18...sample plate, 30...lifting device, 44...
... Rotating cam member, 48 ... Shape memory alloy compression coil, 52 ... Cam surface, 54 ... Support column, 60 ... Heat source, 61 ... Reflection plate, 62 ... Windshield, 63 ... Enclosure.

Claims

[Claims for Utility Model Registration] (1) An electric scale that includes a sample plate, a lifting device for raising and lowering the sample plate, and a measuring device connected to the sample plate and capable of measuring its weight, A column means by which the elevating device can move in the vertical direction; a rotary cam means which supports the column means in a relatively slidable manner and moves the column means upward or downward depending on the direction of rotation; characterized in that it includes actuating means made of a shape memory alloy connected to the rotating cam means and which changes shape when electrically heated; and control means for electrically energizing the actuating means. An electric scale. (2) Utility Model Registration In the electric scale according to claim 1, the support means of the lifting device has at least three supports, the rotating cam means includes a disk-shaped rotating cam member, the rotating cam member has three circumferentially spaced inclined cam surfaces;
The lower end of each of the pillars is slidably mounted on each of these inclined cam surfaces, and the actuating means is made of a pair of shape memory alloys connected to act on the rotating cam member in opposite directions. An electric scale comprising coils, the control means being electrically connected to these coils. (3) Utility model registration The electric scale according to claim 2, wherein the coil is in the shape of a compression coil.