Latch mechanism and device including latch mechanism

A latch mechanism comprising:

• a main body engagement unit arranged in a main body having an opening or closing body that may open and close;
• and
• an opening or closing body engagement unit arranged in the opening or closing body to engage with the main body engagement unit when the opening or closing body is closing,
• wherein the opening or closing body engagement unit is configured to include a first engagement body having a pair of first top portions displaced in a direction orthogonal to a closing direction of the opening or closing body,
• the main body engagement unit is configured to include a pair of second engagement bodies, each of the pair of second engagement bodies having one of a pair of second top portions, wherein the pair of second top portions respectively coming into contact with the pair of first top portions, and
• when one of the pair of first top portions comes into contact with one of the pair of second top portions while the opening or closing body is closing, the pair of second engagement bodies have a first slope that applies a force in a direction to open the opening or closing body to the other first top portion in a state where the other of the pair of first top portions is in contact with the other of the pair of second top portions,
• wherein one of the pair of second engagement bodies have a second slope that receives a force in a direction in which the one first top portion closes the opening or closing body by coming into contact with the one first top portion after the one first top portion passes through the one second top portion while the opening or closing body is closed, and
• the pair of second engagement bodies have a surface portion extending from the other second top portion to a side opposite to the first slope along the opening direction of the opening or closing body, wherein one of the pair of second top portions comprises an ascending slope and the second slope which is an descending slope in reference to a closing direction of the opening or closing body, and the other one of the pair of the second top portions comprises the first slope which is ascending in reference to the closing direction of the opening or closing body and does not comprise a descending slope.

A latch mechanism comprising:

• a main body engagement unit arranged in a main body having an opening or closing body that may open and close;
• and
• an opening or closing body engagement unit arranged in the opening or closing body to engage with the main body engagement unit when the opening or closing body is closing,
• wherein the main body engagement unit is configured to include a pair of third engagement bodies having a pair of third top portions arranged apart from each other in a direction orthogonal to a closing direction of the opening or closing body,
• the opening or closing body engagement unit is configured to include a pair of fourth engagement bodies having two moving bodies, each of the two moving bodies includes a fourth top portion displaced in the orthogonal direction by respectively coming into contact with the pair of third top portions, and
• one of the pair of third top portions applies a force in a closing direction of the opening or closing body to a third slope of the fourth engagement body in a state where the one of the pair of third top portions is in contact with one of the pair of fourth top portions, when the other of the pair of fourth top portions comes into contact with the other of the pair of third top portions while the opening or closing body is closing,
• wherein one of the pair of fourth engagement bodies have a fourth slope that receives a force in a direction in which the one of the pair of the fourth engagement bodies close the opening or closing body by coming into contact with the other third top portion after the other third top portion passes through the other fourth top portion while the opening or closing body is closed, and
• the pair of fourth engagement bodies have a surface portion extending from the one fourth top portion to a side opposite to the third slope along the opening direction of the opening or closing body, wherein one of the pair of fourth top portions comprises an descending slope of an upstream side and the fourth slope which is an descending slope of a downstream side in reference to a closing direction of the opening or closing body, and the other one of the pair of the fourth top portions comprises the third slope which is ascending of the downstream side in reference to the closing direction of the opening or closing body and does not comprise a descending slope.