Door-opening/closing apparatus

Abstract

The clutch includes a drive disk, a follower disk and a brake disk. When current flows, the follower disk is connected with the drive disk to transmit a power from a driving unit to a door-opening/closing mechanism. When no current flows, the follower disk is separated from the drive disk to cut off the power transmission from the driving unit to the door-opening/closing mechanism. In a state that the drive disk and the follower disk are separated from each other, the brake disk is connected to the follower disk to brake the door-opening/closing mechanism in the opening direction of the door, and to allow the door-opening/closing mechanism to move in the closing direction of the door.

1 . (canceled).  
   
   
       2 . (canceled).  
   
   
       3 . (canceled).  
   
   
       4 . A door-opening/closing apparatus for a vehicle, the vehicle having a body, the body having an opening, the vehicle having a door for closing the opening of the body based on a power of a driving unit, comprising: 
 a door-opening/closing mechanism that drives the door in a closing direction when the door is open; and    a clutch having a first mechanism to flow an electric current and a second mechanism to any one of transmit and not transmit the power of the driving unit to the door-opening/closing mechanism based on whether the electric current is flowing in the first mechanism, wherein 
 when the electric current flows in the first mechanism, the second mechanism transmits the power of the driving unit to the door-opening/closing mechanism so that the door can be any one of opened and closed, and  
 when no electric current flows in the first mechanism, the second mechanism does not transmit the power of the driving unit to the door-opening/closing mechanism so that the door cannot be opened but can be closed,  
   wherein the second mechanism includes    a drive disk that is driven by the driving unit;    a follower disk that is linked with the door-opening/closing mechanism, wherein 
 when the electric current flows in the first mechanism, the follower disk is engaged with the drive disk to transmit the power of the driving unit to the door-opening/closing mechanism, and  
 when no electric current flows in the first mechanism, the follower disk is separated from the drive disk to cut off the transmission of the power; and  
   a brake disk that is engaged with the follower disk when no electric current flows in the first mechanism, wherein 
 the brake disk disables the door-opening/closing mechanism to drive the door in the opening direction of the door, and  
 the brake disk allows the door-opening/closing mechanism to drive the door in the closing direction of the door, and  
   wherein    the drive disk and the follower disk have angled teeth, wherein the teeth of the drive disk and the follower disk are engaged with each other,    when the electric current flows in the first mechanism, the teeth of the drive disk and the follower disk are engaged with each other, and    when no electric current flows in the first mechanism, the teeth of the drive disk and the follower disk are separated from each other.    
   
   
       5 . (canceled).  
   
   
       6 . A door-opening/closing apparatus for a vehicle, the vehicle having a bode the body having an opening, the vehicle having a door for closing the opening of the body based on a power of a driving unit, comprising: 
 a door-opening/closing mechanism that drives the door in a closing direction when the door is open; and    a clutch having a first mechanism to flow an electric current and a second mechanism to any one of transmit and not transmit the power of the driving unit to the door-opening/closing mechanism based on whether the electric current is flowing in the first mechanism, wherein 
 when the electric current flows in the first mechanism, the second mechanism transmits the power of the driving unit to the door-opening/closing mechanism so that the door can be any one of opened and closed, and  
 when no electric current flows in the first mechanism, the second mechanism does not transmit the power of the driving unit to the door-opening/closing mechanism so that the door cannot be opened but can be closed,  
   wherein the second mechanism includes    a drive disk that is driven by the driving unit;    a follower disk that is linked with the door-opening/closing mechanism, wherein 
 when the electric current flows in the first mechanism, the follower disk is engaged with the drive disk to transmit the power of the driving unit to the door-opening/closing mechanism, and  
 when no electric current flows in the first mechanism, the follower disk is separated from the drive disk to cut off the transmission of the power; and  
   a brake disk that is engaged with the follower disk when no electric current flows in the first mechanism, wherein 
 the brake disk disables the door-opening/closing mechanism to drive the door in the opening direction of the door, and  
 the brake disk allows the door-opening/closing mechanism to drive the door in the closing direction of the door, and,  
   wherein the brake disk includes    an inner race and an outer race;    a one-way clutch that is placed between the inner race and the outer race, wherein the one-way clutch disables the power transmission in the opening direction of the door, and allows the power transmission in the closing direction of the door.    
   
   
       7 . (canceled).  
   
   
       8 . (canceled).  
   
   
       9 . A door-opening/closing apparatus for a vehicle, the vehicle having a body, the body having an opening, the vehicle having a door for closing the opening of the body based on a power of a driving unit, comprising: 
 a door-opening/closing mechanism that drives the door in a closing direction when the door is open; and    a clutch having a first mechanism to flow an electric current and a second mechanism to any one of transmit and not transmit the power of the driving unit to the door-opening/closing mechanism based on whether the electric current is flowing in the first mechanism, wherein 
 when the electric current flows in the first mechanism, the second mechanism transmits the power of the driving unit to the door-opening/closing mechanism so that the door can be any one of opened and closed, and  
 when no electric current flows in the first mechanism, the second mechanism does not transmit the power of the driving unit to the door-opening/closing mechanism so that the door cannot be opened but can be closed,  
   wherein the clutch has a third mechanism to switch between an operative state and a non-operative state, wherein    in the operative state, the door-opening/closing mechanism is disabled to drive the door in an opening direction of the door, and    in the non-operative state, the door-opening/closing mechanism is allowed to drive the door both in the opening direction of the door and in the closing direction of the door,    wherein the clutch includes    a drive disk that is driven by the driving unit;    a follower disk that is linked with the door-opening/closing mechanism, wherein 
 when the electric current flows in the first mechanism, the follower disk is engaged with the drive disk to transmit the power of the driving unit to the door-opening/closing mechanism, and  
 when no electric current flows in the first mechanism, the follower disk is separated from the drive disk to cut off the transmission of the power; and  
   a brake disk that is engaged with the follower disk when no electric current flows in the first mechanism, wherein 
 the brake disk disables the door-opening/closing mechanism to drive the door in the opening direction of the door, and  
 the brake disk allows the door-opening/closing mechanism to drive the door in the closing direction of the door, and  
   wherein    the drive disk and the follower disk have angled teeth, wherein the teeth of the drive disk and the follower disk are engaged with each other,    when the electric current flows in the first mechanism, the teeth of the drive disk and the follower disk are engaged with each other, and    when no electric current flows in the first mechanism, the teeth of the drive disk and the follower disk are separated from each other.    
   
   
       10 . (canceled).  
   
   
       11 . A door-opening/closing apparatus for a vehicle, the vehicle having a body, the body having an opening, the vehicle having a door for closing the opening of the body based on a power of a driving unit, comprising: 
 a door-opening/closing mechanism that drives the door in a closing direction when the door is open; and    a clutch having a first mechanism to flow an electric current and a second mechanism to any one of transmit and not transmit the power of the driving unit to the door-opening/closing mechanism based on whether the electric current is flowing in the first mechanism, wherein 
 when the electric current flows in the first mechanism, the second mechanism transmits the power of the driving unit to the door-opening/closing mechanism so that the door can be any one of opened and closed, and  
 when no electric current flows in the first mechanism, the second mechanism does not transmit the power of the driving unit to the door-opening/closing mechanism so that the door cannot be opened but can be closed,  
   wherein the clutch has a third mechanism to switch between an operative state and a non-operative state, wherein    in the operative state, the door-opening/closing mechanism is disabled to drive the door in an opening direction of the door, and    in the non-operative state, the door-opening/closing mechanism is allowed to drive the door both in the opening direction of the door and in the closing direction of the door,    wherein the clutch includes    a drive disk that is driven by the driving unit;    a follower disk that is linked with the door-opening/closing mechanism, wherein 
 when the electric current flows in the first mechanism, the follower disk is engaged with the drive disk to transmit the power of the driving unit to the door-opening/closing mechanism, and  
 when no electric current flows in the first mechanism, the follower disk is separated from the drive disk to cut off the transmission of the power; and  
   a brake disk that is engaged with the follower disk when no electric current flows in the first mechanism, wherein 
 the brake disk disables the door-opening/closing mechanism to drive the door in  
 the opening direction of the door, and the brake disk allows the door-opening/closing mechanism to drive the door in the closing direction of the door, and,  
   wherein the brake disk includes    an inner race and an outer race;    a one-way clutch that is placed between the inner race and the outer race, wherein the one-way clutch disables the power transmission in the opening direction of the door, and allows the power transmission in the closing direction of the door.    
   
   
       12 - 14 . (canceled).