Lock mechanism and power supply device

A lock mechanism attachable to a rack-mountable exterior body for housing an electronic device, comprising:

• a latch having a first flat plate and a first protrusion, the first flat plate having a main surface, and the first protrusion protrudes from the first flat plate to a side that the main surface faces;
• and
• a bumper having a second flat plate and a second protrusion, the second flat plate being in contact with the latch, and the second protrusion protrudes from the second flat plate to a side in a same direction as the first protrusion, wherein
• under conditions that a specific axis parallel to the main surface is a first axis, and an axis orthogonal to the first axis and parallel to the main surface is a second axis,
• the first protrusion has a latch surface perpendicular to the first axis,
• the second protrusion has a bumper surface perpendicular to the second axis,
• the latch has two first protrusions,
• the two first protrusions are separated from each other in a direction along the second axis, and
• the second protrusion of the bumper is located between the two first protrusions in the direction along the second axis.

A power supply device comprising:

• a lock mechanism including
• a latch having a first flat plate and a first protrusion, the first flat plate having a main surface, and the first protrusion protrudes from the first flat plate to a side that the main surface faces, and
• a bumper having a second flat plate and a second protrusion, the second flat plate being in contact with the latch, and the second protrusion protrudes from the second flat plate to a side in a same direction as the first protrusion, wherein
• under conditions that a specific axis parallel to the main surface is a first axis, and an axis orthogonal to the first axis and parallel to the main surface is a second axis,
• the first protrusion has a latch surface perpendicular to the first axis, and
• the second protrusion has a bumper surface perpendicular to the second axis;
• and
• a rack to which an exterior body for housing an electronic device is attached via the lock mechanism,
• wherein the rack includes
• a flat plate portion that is at least partially in contact with the lock mechanism in a state where the lock mechanism is fixed, and
• the flat plate portion has
• a first surface perpendicular to the first axis, and in contact with the latch surface of the lock mechanism in the state where the lock mechanism is fixed, and
• a second surface perpendicular to the second axis, and in contact with the bumper surface of the lock mechanism in the state where the lock mechanism is fixed.