Method to prevent incorrect assembly of latch case

The latch case misassembly prevention method addresses incorrect assembly by using an interfering portion to ensure correct fitting, preventing latch cases without the necessary function from being installed in the wrong door bodies, thereby enhancing assembly efficiency.

JP2026115071APending Publication Date: 2026-07-09PANASONIC HOUSING SOLUTIONS CO LTD
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Patent Information

Application Number
JP2024231499
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-07-09

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Abstract

The present invention provides a method for preventing incorrect assembly of latch cases, which can prevent the mistake of assembling a latch case without a predetermined function into a door frame where a latch case with a predetermined function should be installed. [Solution] A latch case misassembly prevention method for preventing misassembly when attempting to assemble a first latch case 15, which is to be housed in a first housing recess 11 provided in a first door body 10, to a second door body 20 provided with a second housing recess 21 for housing a second latch case 25 having a different function from the first latch case, wherein the first latch case is provided with an interference portion 19 that does not interfere when the first latch case is housed in the first housing recess, but abuts against the contact portion 22a of the second door body when it is housed in the second housing recess, and the interference portion is brought into contact with the contact portion when assembling the first latch case to the second door body to prevent misassembly.
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Citation Information

Patent Citations

  • Latch lock device and door device provided with the same

    JP2017160723A