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
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
Smart Images

Figure 2026115071000001_ABST
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.
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Latch lock device and door device provided with the same
JP2017160723A
