Granted Patent B2

US 6,888,718 · App. 10/158,627 · Granted May 3, 2005

Abstract

Claims (53)

1. A set, comprising:

a target apparatus including a mount assembly having an upper wall, a pair of side walls and an access opening;

a mountable unit attachable to and detachable from the mount assembly through the access opening;

a stationary plate adapted to be secured to the mountable unit;

a movable plate adapted to be attached to the stationary plate and to be slidable with respect to the stationary plate in an insertion direction in which the mountable unit is inserted into the mount assembly and in a removal direction opposite to the insertion direction, the movable plate including an elastically displaceable portion having a protuberance;

the stationary plate including a slide guide and a surface having a relief hole adapted to receive the protuberance, wherein

movement of the mountable unit in the insertion direction into the mount assembly causes the protuberance of the elastically displaceable portion to contact the slide guide on the stationary plate, displacing the elastically displaceable portion outwardly in a lateral direction substantially orthogonal to the insertion direction and pressing the elastically displaceable portion into contact with at least one side wall of the mount assembly, thereby securing the mountable unit to the mount assembly, and

movement of the movable plate in the insertion direction causes the protuberance of the elastically displaceable portion to locate in the relief hole in the stationary plate, displacing the elastically displaceable portion inwardly in the lateral direction to release the contact between the elastically displaceable portion and the at least one side wall of the mount assembly, thereby releasing the mountable unit for removal from the mount assembly.

2. The set according to claim 1 , wherein the slide guide includes an outwardly bulging portion adapted to cause the elastically displaceable portion to displace further outwardly when the protuberance of the elastically displaceable portion rides on the outwardly bulging portion.

3. The set according to claim 1 , wherein

the stationary plate further includes a wall portion having an aperture,

the slide guide is provided on a peripheral edge of the aperture, and

the elastically displaceable portion is adapted to be inserted through the aperture and face an outer side of the stationary plate and to slide along the slide guide.

4. A set, comprising:

a target apparatus including a mount assembly having an upper wall, a pair of side walls and an access opening;

a mountable unit attachable to and detachable from the mount assembly through the access opening;

a stationary plate adapted to be secured to the mountable unit; and

a movable plate adapted to be attached to the stationary plate and to be slidable with respect to the stationary plate in an insertion direction in which the mountable unit is inserted into the mount assembly and in a removal direction opposite to the insertion direction, the movable plate including an elastically displaceable portion, wherein

movement of the mountable unit in the insertion direction into the mount assembly displaces the elastically displaceable portion outwardly in a lateral direction substantially orthogonal to the insertion direction and presses the elastically displaceable portion into contact with at least one side wall of the mount assembly, thereby securing the mountable unit to the mount assembly, and

movement of the movable plate in the insertion direction causes the elastically displaceable portion to displace inwardly in the lateral direction to release the contact between the elastically displaceable portion and the at least one side wall of the mount assembly, thereby releasing the mountable unit for removal from the mount assembly; and

the mountable unit further including retaining means for retaining the elastically displaceable portion in an outwardly displaced configuration when the mountable unit is inserted into the mount assembly.

5. The set according to claim 4 , wherein the retaining means comprises:

a plate fixing member provided on the movable plate, the plate fixing member having a positioning protuberance; and

a positioning aperture formed on the stationary plate and adapted to receive the positioning protuberance to engage the positioning protuberance in the positioning aperture.

6. A set, comprising:

a target apparatus including a mount assembly having an upper wall, a pair of side walls and an access opening;

a mountable unit attachable to and detachable from the mount assembly through the access opening;

a stationary plate adapted to be secured to the mountable unit; and

a movable plate adapted to be attached to the stationary plate and to be slidable with respect to the stationary plate in an insertion direction in which the mountable unit is inserted into the mount assembly and in a removal direction opposite to the insertion direction, the movable plate including an elastically displaceable portion and a projecting piece on an upper edge of the movable plate, the movable plate being displaceable in a direction substantially orthogonal to the insertion direction, wherein

movement of the mountable unit in the insertion direction into the mount assembly displaces the elastically displaceable portion outwardly in a lateral direction substantially orthogonal to the insertion direction and presses the elastically displaceable portion into contact with at least one side wall of the mount assembly, thereby securing the mountable unit to the mount assembly,

movement of the movable plate in the insertion direction causes the elastically displaceable portion to displace inwardly in the lateral direction to release the contact between the elastically displaceable portion and the at least one side wall of the mount assembly, thereby releasing the mountable unit from the mount assembly, and

movement of the movable plate in the removal direction engages the projecting piece of the movable plate with the upper wall of the mount assembly, thereby locking the mountable unit to the mount assembly.

7. A set, comprising:

a target apparatus including a mount assembly having an upper wall, a pair of side walls and an access opening;

a mountable unit attachable to and detachable from the mount assembly through the access opening;

a stationary plate adapted to be secured to the mountable unit, the stationary plate having a supporting surface; and

a movable plate adapted to be attached to the stationary plate and to be slidable with respect to the stationary plate in an insertion direction in which the mountable unit is inserted into the mount assembly and in a removal direction opposite to the insertion direction, the movable plate including an elastically displaceable portion, a supported surface, and a projecting piece that projects in a predetermined direction substantially orthogonal to the insertion direction and to the lateral direction, wherein

movement of the mountable unit in the insertion direction into the mount assembly displaces the elastically displaceable portion outwardly in a lateral direction substantially orthogonal to the insertion direction and presses the elastically displaceable portion into contact with at least one side wall of the mount assembly, thereby securing the mountable unit to the mount assembly,

movement of the movable plate in the insertion direction causes the elastically displaceable portion to displace inwardly in the lateral direction to release the contact between the elastically displaceable portion and the at least one side wall of the mount assembly, thereby releasing the mountable unit for removal from the mount assembly,

the supported surface of the movable plate slidably engaging the supporting surface of the stationary plate so that movement of the movable plate in the removal direction with respect to the stationary plate displaces the movable plate in the predetermined direction, and movement of the movable place in the insertion direction with respect to the stationary plate displaces the movable plate in a direction opposite the predetermined direction, and

movement of the movable plate in the predetermined direction engages the projecting piece of the movable plate with the upper wall of the mount assembly, thereby locking the mountable unit to the mount assembly, and movement of the movable plate in the direction opposite the predetermined direction disengages the projecting piece of the movable plate from the upper wall of the mount assembly, thereby unlocking the mountable unit from the mount assembly.

8. A mountable unit attachable to and detachable from a mount assembly through an opening of a target apparatus, said mountable unit comprising:

a stationary plate adapted to be secured to the mountable unit; and

a movable plate adapted to be attached to the stationary plate and to be slidable with respect to the stationary plate in an insertion direction in which the mountable unit is inserted into the mount assembly and in a removal direction opposite to the insertion direction, the movable plate including an elastically displaceable portion having a protuberance;

the stationary plate including a slide guide and a surface having a relief hole adapted to receive the protuberance, wherein

movement of the mountable unit in the insertion direction into the mount assembly causes the protuberance of the elastically displaceable portion to contact the slide guide on the stationary plate, displacing the elastically displaceable portion outwardly in a lateral direction substantially orthogonal to the insertion direction and pressing the elastically displaceable portion into contact with at least one side wall of the mount assembly, thereby securing the mountable unit to the mount assembly, and

movement of the movable plate in the insertion direction causes the protuberance of the elastically displaceable portion to locate in the relief hole in the stationary plate, displacing the elastically displaceable portion inwardly in the lateral direction to release the contact between the elastically displaceable portion and the at least one side wall of the mount assembly, thereby releasing the mountable unit for removal from the mount assembly.

9. A plate unit adapted for loading a mountable unit into a mount assembly of a target apparatus, said plate unit comprising:

a stationary plate adapted to be secured to the mountable unit, the stationary plate having first and second ends;

a movable plate adapted to be slidably attached to the stationary plate, the movable plate including an elastically displaceable portion having a protuberance; and

the stationary plate including a slide guide and a surface having a relief hole adapted to receive the protuberance, wherein

movement of the movable plate toward the first end of the stationary plate causes the protuberance of the elastically displaceable portion to contact the slide guide on the stationary plate, displacing the elastically displaceable portion outwardly toward and into contact with the mount assembly, and

movement of the movable plate toward the second end of the stationary plate causes the protuberance to locate in the relief hole in the stationary plate, displacing the elastically displaceable portion inwardly away from the mount assembly and releasing the contact between the elastically displaceable portion and the mount assembly.

Assignments (8)