Bicycle for bed

Abstract

The present disclosure relates to a bed bike that maintains a lower extremity posture of a user with weak lower extremity muscles strength. An embodiment of the present disclosure disclosures a bed bike including a body including a rotating member; a first fixing portion, positioned on one side of the body and holding a thigh of a user so that a knee of the user does not spread outward more than a predetermined distance from a first line drawn straight from a hip joint to an ankle of the user; and a second fixing portion connected to the rotating member and supporting a lower leg of the user so that the knee of the user is not brought inward from the first line.

1 . A bed bike comprising:
 a body including a rotating member;   a first fixing portion placed on one side of the body and holding a thigh of a user so that a knee of the user does not spread outward more than a predetermined distance from a first line drawn straight from a hip joint to an ankle of the user; and   a second fixing portion connected to the rotating member and supporting a lower leg of the user so that the knee of the user is not brought inward from the first line.   
     
     
         2 . The bed bike of  claim 1 , wherein the body further comprises a controller capable of adjusting an exercise intensity. 
     
     
         3 . The bed bike of  claim 1 , wherein the first fixing portion comprises:
 a column arranged on one side of the body;   a thigh strap holding a part of the thigh of the user; and   a connecting member provided between the column and the thigh strap.   
     
     
         4 . The bed bike of  claim 3 , wherein the connecting member comprises:
 a connecting line of which one end is connected to one side of the thigh strap and the other end is connected to the column; and   a line winder in which the connecting line is wound and which is capable of adjusting a length of the connecting line.   
     
     
         5 . The bed bike of  claim 4 , wherein the line winder comprises:
 a button, so that, when the button is pressed, a length of the connecting line is reduced as the connecting line is wound inside the line winder, when the button is pressed and the connecting line is pulled at the same time, the connecting line wound inside the line winder is released and lengthened, and when the button is not pressed, the connecting line is fixed.   
     
     
         6 . The bed bike of  claim 3 , wherein a position of a first point at which the column contacts the connecting member is adjustable. 
     
     
         7 . The bed bike of  claim 6 , wherein the first point is between a second line and a third line, the second line passing through the knee which is closer to the body among both knees of the user, and being perpendicular to the ground and the third line passing through a center of the rotating member and being perpendicular to the ground. 
     
     
         8 . The bed bike of  claim 1 , wherein the second fixing portion comprises:
 a lower leg strap holding a part of the lower leg of the user;   a footrest connected to the lower leg strap and supporting a foot of the user; and   a crank connecting the rotating member to the footrest.   
     
     
         9 . The bed bike of  claim 8 , wherein the lower leg strap comprises
 a lower leg fixing plate surrounding a part of the lower leg of the user; and   a fixed column in which the lower leg fixing plate is placed at one end and one side of the footrest is in contact at the other end.   
     
     
         10 . The bed bike of  claim 9 , wherein the lower leg fixing plate comprises
 a first fixing member provided on one side of the lower leg fixing plate and including a plurality of grooves; and   a second fixing member provided on the other side of the lower leg fixing plate so as to face the first fixing member and fastened to one of the plurality of grooves.   
     
     
         11 . The bed bike of  claim 9 , wherein the lower leg fixing plate comprises a Velcro wrapping around the lower leg of the user together with the lower leg fixing plate and fixing the lower leg of the user to the lower leg fixing plate. 
     
     
         12 . The bed bike of  claim 9 , wherein the fixed column is adjustable in height. 
     
     
         13 . The bed bike of  claim 8 , wherein the second fixing portion further comprises a joint member disposed between the lower leg strap and the footrest. 
     
     
         14 . The bed bike of  claim 13 , wherein a center line passing through a center of the lower leg strap is rotatable around the joint member as a rotation axis. 
     
     
         15 . The bed bike of  claim 1 , further comprising:
 a support member provided on the other side of the body and fixing the body to a bed rail.