diff --git a/app/src/main/java/org/ntlab/irisclient/viewmodels/TimerViewModel.java b/app/src/main/java/org/ntlab/irisclient/viewmodels/TimerViewModel.java
index 9254669..ad31daf 100644
--- a/app/src/main/java/org/ntlab/irisclient/viewmodels/TimerViewModel.java
+++ b/app/src/main/java/org/ntlab/irisclient/viewmodels/TimerViewModel.java
@@ -8,7 +8,9 @@
         import androidx.lifecycle.MutableLiveData;
         import androidx.lifecycle.ViewModel;
 
-        import java.util.ArrayList;
+import org.ntlab.irisclient.Iris;
+
+import java.util.ArrayList;
         import java.util.Collection;
         import java.util.HashMap;
         import java.util.Random;
@@ -21,6 +23,7 @@
 abstract class TimerViewModel extends ViewModel implements Runnable {
 
     private ScheduledThreadPoolExecutor thread = null;
+    protected Iris iris;
 
 
     //-----------------------------------------------------------------
@@ -34,7 +37,8 @@
 
     //-----------------------------------------------------------------
     //何ミリ秒ごとにrun()を実行するかを決める
-    public void start(int interval) {
+    public void start(int interval,Iris iris) {
+        this.iris = iris;
         thread = new ScheduledThreadPoolExecutor(1);
         thread.scheduleWithFixedDelay(this, interval, 1000L, TimeUnit.MILLISECONDS);
     }