【図面の簡単な説明】[Brief explanation of the drawing]
第１図Ａ，Ｂは本考案の一実施例による浴槽用
開閉弁を示す断面図、第２図は浴槽用開閉弁を取
り付けた状態を示す斜視図、第３図は浴槽用開閉
弁を一部破断して示す斜視図、第４図は開閉弁を
示す背面図、第５図および第６図は第２および第
３の実施例を示す断面図、第７図は第４の実施例
を示す断面図、第８図は第４の実施例を示す平面
図、第９図は第４の実施例を示す斜視図、第１０
図ないし第１２図は第５ないし第７の実施例を示
す断面図である。
１…浴槽、３…ボイラー（熱交換器）、５…上
通路口、７…下通路口、９…開閉弁、１０…スリ
ーブ、１１…筒体、１３，１３Ａ…弁体、１５…
支持棒、１７…支持部材、２１，２１Ａ，２１Ｂ
，２１Ｄ，２１Ｅ…作動用ばね、２３…復帰用ば
ね。
1A and 1B are cross-sectional views showing a bathtub on-off valve according to an embodiment of the present invention, FIG. 2 is a perspective view showing the bathtub on-off valve installed, and FIG. 3 is a perspective view of the bathtub on-off valve. FIG. 4 is a rear view showing the on-off valve, FIG. 5 and FIG. 6 are cross-sectional views showing the second and third embodiments, and FIG. 7 is a cross-sectional view showing the fourth embodiment. 8 is a plan view showing the fourth embodiment, FIG. 9 is a perspective view showing the fourth embodiment, and FIG.
Figures 12 through 12 are cross-sectional views showing fifth through seventh embodiments. DESCRIPTION OF SYMBOLS 1...Bathtub, 3...Boiler (heat exchanger), 5...Upper passage opening, 7...Lower passage opening, 9...Opening/closing valve, 10...Sleeve, 11...Cylinder body, 13, 13A...Valve body, 15...
Support rod, 17...Support member, 21, 21A, 21B
, 21D, 21E...operating spring, 23...returning spring.
補正 昭６２．６．５
考案の名称を次のように補正する。
考案の名称 浴槽用開閉弁
実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment June 5, 1982 The name of the invention is amended as follows. Title of the invention Opening/closing valve for bathtubs The scope of the utility model registration claims and the brief description of the drawings are amended as follows.
【実用新案登録請求の範囲】
熱交換器からの湯を浴槽に供給する通路に弁体
を設け、
形状記憶合金からなり、かつ予め記憶された形
状が温度により変化するばねを上記弁体に取り付
け、
ばねの伸縮により弁体で上記通路を開閉する浴
槽用開閉弁において、
弁体が閉じているときに、浴槽と熱交換器側の
通路とを常時連通する空気抜き通路を設けたこと
を特徴とする浴槽用開閉弁。[Claims for Utility Model Registration] A valve body is provided in a passage that supplies hot water from a heat exchanger to a bathtub, and a spring made of a shape memory alloy and whose pre-memorized shape changes depending on the temperature is attached to the valve body. , an on-off valve for a bathtub in which the passage is opened and closed by a valve body by the expansion and contraction of a spring, characterized in that an air vent passage is provided that constantly communicates the bathtub with the passage on the heat exchanger side when the valve body is closed. An on-off valve for bathtubs.
【図面の簡単な説明】
第１図Ａ，Ｂは本考案の一実施例による浴槽用
開閉弁を示す断面図、第２図は浴槽用開閉弁を取
り付けた状態を示す斜視図、第３図は浴槽用開閉
弁を一部破断して示す斜視図、第４図は開閉弁を
示す背面図、第５図および第６図は第２および第
３の実施例を示す断面図、第７図は第４の実施例
を示す断面図、第８図は第４の実施例を示す平面
図、第９図は第４の実施例を示す斜視図、第１０
図ないし第１２図は第５ないし第７の実施例を示
す断面図である。
１…浴槽、３…ボイラー（熱交換器）、５…上
通路口、７…下通路口、９…開閉弁、１０…スリ
ーブ、１０ｆ…空気抜き用の通路、１１…筒体、
１３，１３Ａ…弁体、１５…支持棒、１７…支持
部材、２１，２１Ａ，２１Ｂ，２１Ｄ，２１Ｅ…
作動用ばね、２３…復帰用ばね。[Brief Description of the Drawings] Figures 1A and B are cross-sectional views showing a bathtub on-off valve according to an embodiment of the present invention, Fig. 2 is a perspective view showing the bathtub on-off valve installed, and Fig. 3 4 is a rear view showing the on-off valve, FIG. 5 and FIG. 6 are cross-sectional views showing the second and third embodiments, and FIG. 8 is a sectional view showing the fourth embodiment, FIG. 8 is a plan view showing the fourth embodiment, FIG. 9 is a perspective view showing the fourth embodiment, and FIG.
Figures 12 through 12 are cross-sectional views showing fifth through seventh embodiments. DESCRIPTION OF SYMBOLS 1...Bathtub, 3...Boiler (heat exchanger), 5...Upper passage opening, 7...Lower passage opening, 9...Opening/closing valve, 10...Sleeve, 10f...Air venting passage, 11...Cylinder body,
13, 13A... Valve body, 15... Support rod, 17... Support member, 21, 21A, 21B, 21D, 21E...
Operating spring, 23...Returning spring.