noun
keeper; strike; latch receiver
Specialized hardware term for the part of a lock mechanism that receives the latch or bolt; often used in contexts like door locks, latches, and catches. Compare with 掛け金 (かけがね), the latch itself.
See also: 掛け金 (かけがね)
ドアの枠に受け壺を取り付ける。
Install the strike plate on the door frame.
この錠前は受け壺が壊れている。
The keeper on this lock is broken.
掛け金 is the latch or bolt that engages with the 受け壺 (keeper/strike).
Compound of 受け (uke, 'receiving') + 壺 (tsubo, 'pot' or 'receptacle'), literally 'receiving pot', referring to the part that catches the latch.