JPH01165287U

JPH01165287U -

Info

Publication number: JPH01165287U
Application number: JP6147388U
Authority: JP
Priority date: 1988-05-09
Filing date: 1988-05-09
Publication date: 1989-11-17

Description

[Brief explanation of the drawing]

第１図は、本考案による形状記憶合金のクリツ
プを示す図で、ａは平面図、ｂは側面図で内層と
外層とが同一平面上にあるとき、ｃ，ｄは側面図
で手で暖めて記憶していた形状に変形した形状を
示す図。ｅは側面図で内層と外層が段付きとした
形状を示す図。第２図は、超弾性特性を利用した
クリツプの側面図で、ａは用紙を挾まないときの
形状を示す図、ｂは内層と外層を開いたときの図
。第３図は、本考案によるクリツプの形状を示す
平面図で、ａは円形、ｂは半円で半分が紡錘形、
ｃはトライアングル形。第４図は、従来のクリツ
プの状態を示す図で、ａは複数枚用紙を挾んだ斜
視図、ｂは複数枚用紙を挾んだ斜視図、ｃ，ｄは
厚い用紙を挾み変形したままを示す斜視図、ｅは
ｃ，ｄの状態のクリツプを元に戻し変形した斜視
図。第５図は、Ｎｉ―Ｔｉ系合金の超弾性特性領
域における応力・伸び特性を示す。１……クリツプ、２……内層、３……外層、４
……用紙。 Figure 1 shows a shape memory alloy clip according to the present invention, where a is a plan view, b is a side view when the inner layer and outer layer are on the same plane, and c and d are side views and are warmed by hand. FIG. 3 is a diagram showing a shape that has been transformed into a shape that has been memorized. e is a side view showing a stepped shape of the inner layer and the outer layer. FIG. 2 is a side view of a clip that utilizes superelastic properties, where a shows the shape when no paper is being held between the clips, and b shows the shape when the inner and outer layers are opened. FIG. 3 is a plan view showing the shape of the clip according to the present invention, where a is circular, b is semicircular and half is spindle-shaped,
C is a triangle shape. Figure 4 shows the state of a conventional clip, where a is a perspective view of a clip holding multiple sheets of paper, b is a perspective view of a clip holding multiple sheets of paper, and c and d are deformed clips holding thick sheets of paper. Fig. e is a perspective view showing the state as it is; FIG. 5 shows the stress/elongation characteristics of the Ni--Ti alloy in the superelastic characteristic region. 1 ...Clip, 2...Inner layer, 3...Outer layer, 4
...Paper.

Claims

[Claims for Utility Model Registration] 1. A clip using a shape memory alloy, characterized in that it uses a wire rod of a shape memory alloy and forms a spiral shape of at least two layers. 2. It is characterized by using a shape memory alloy wire that is in a martensitic phase at room temperature and transforms into an austenite phase at temperatures above 25°C, and the opening angle of the clip is deformed into a pre-memorized shape with a constant curvature. A clip made of shape memory alloy. 3. A clip using a shape memory alloy, characterized in that it is formed using a wire rod of a shape memory alloy that has superelastic properties of an austenite phase at room temperature.