Housing device

Abstract

A housing device 10 includes a movable pulley 20 , (first weights 18 ), and a guide mechanism. The movable pulley is movable among a first position at which the long object is housed within a housing 12, a second position at which the long object is pulled out from the housing, and a third position which is set between the first position and the second position. The long object is pulled out from the housing when the movable pulley 20 moves upward, and the long object is housed in the housing when the movable pulley moves downward. The first weights 18 are separated from the movable pulley when the movable pulley moves between the first position and the third position, and moves together with the movable pulley when the movable pulley moves between the third position and the second position.

1 . A housing device for housing a long object, the housing device comprising a housing, a movable pulley, an operating force adjustment mechanism, and a guide mechanism, wherein
 an intermediate portion of the long object is wound on the movable pulley, the movable pulley is provided so as to be movable relative to the housing in an up-down direction while being guided by the guide mechanism, and the movable pulley is movable among a first position at which the long object is housed within the housing, a second position at which the long object is pulled out from the housing, and a third position which is set between the first position and the second position,   the long object housed within the housing is pulled out from the housing when the movable pulley moves upward from the first position toward the second position, and the long object pulled out from the housing is housed in the housing when the movable pulley moves downward from the second position toward the first position, and   the operating force adjustment mechanism generates a first biasing force biasing the movable pulley toward the first position when the movable pulley moves between the first position and the third position, and generates a second biasing force biasing the movable pulley toward the third position when the movable pulley moves between the third position and the second position, and the second biasing force is greater than the first biasing force.   
     
     
         2 . The housing device according to  claim 1 , wherein
 the operating force adjustment mechanism includes a first weight, and   the first weight is separated from the movable pulley when the movable pulley moves between the first position and the third position, and moves together with the movable pulley when the movable pulley moves between the third position and the second position.   
     
     
         3 . The housing device according to  claim 1 , wherein
 the operating force adjustment mechanism includes a spring, and   the spring remains unchanged with its spring length being a free length when the movable pulley moves between the first position and the third position, and the spring length of the spring is shortened in accordance with a position of the movable pulley and the spring biases the movable pulley toward the third position when the movable pulley moves between the third position and the second position.   
     
     
         4 . The housing device according to  claim 1 , wherein
 the guide mechanism includes a guide which is mounted on the housing and extends in the up-down direction within the housing, and   an engagement portion which engages with the guide is formed in the movable pulley, and the movable pulley moves in the up-down direction while being guided by the guide.   
     
     
         5 . The housing device according to  claim 4 , wherein
 the guide includes a support portion which supports the first weight,   when the movable pulley moves between the first position and the third position, the first weight is supported by the support portion of the guide, and   when the movable pulley moves between the third position and the second position, the first weight is separated from the support portion of the guide and moves together with the movable pulley.   
     
     
         6 . The housing device according to  claim 5 , wherein
 the guide mechanism includes two guides which are mounted on the housing, extend in the up-down direction within the housing, and are provided at both sides in a direction of a rotation axis of the movable pulley, respectively, and   a first engagement portion which engages with one of the two guides and a second engagement portion which engages with the other of the two guides are formed in the movable pulley.   
     
     
         7 . The housing device according to  claim 6 , wherein
 one of the two guides and one of the two engagement portions are offset toward one side in a direction orthogonal to the rotation axis of the movable pulley and orthogonal to a direction of gravity, and   the other of the two guides and the other of the two engagement portions are offset toward another side in the direction orthogonal to the rotation axis of the movable pulley and orthogonal to the direction of gravity.   
     
     
         8 . The housing device according to  claim 5 , wherein
 the guide mechanism includes two guides which are mounted on the housing, extend in the up-down direction within the housing, and are provided at one side in a direction of a rotation axis of the movable pulley, and   a first engagement portion which engages with one of the two guides and a second engagement portion which engages with the other of the two guides are formed in the movable pulley.   
     
     
         9 . The housing device according to  claim 5 , wherein
 the guide mechanism includes two guides which are mounted on the housing, extend in the up-down direction within the housing, and are provided at both sides, respectively, in a direction orthogonal to a rotation axis of the movable pulley and orthogonal to a direction of gravity, and   a first engagement portion which engages with one of the two guides and a second engagement portion which engages with the other of the two guides are formed in the movable pulley.   
     
     
         10 . The housing device according to  claim 9 , wherein
 one of the two guides and one of the two engagement portions are offset toward one side in a direction of a rotation axis of the movable pulley, and   the other of the two guides and the other of the two engagement portions are offset toward another side in the direction of the rotation axis of the movable pulley.   
     
     
         11 . The housing device according to  claim 1 , further comprising a second weight, wherein
 the movable pulley is movable to a fourth position which is set between the third position and the second position,   when the movable pulley moves between the first position and the third position, the movable pulley is separated from the first weight and the second weight,   when the movable pulley moves between the third position and the fourth position, the movable pulley and the first weight move together, but the movable pulley and the second weight are separated from each other, and   when the movable pulley moves between the fourth position and the second position, the movable pulley, the first weight, and the second weight move together.