Babyproof door knob lock
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(→Bill of Materials (Doorknob)) |
(→Bill of Materials (Doorknob)) |
Revision as of 22:00, 19 September 2007
Bill of Materials (Doorknob)
Number | Name | Origin | Weight | Material | MT | Function |
---|---|---|---|---|---|---|
1 | circular wedge | latch | -- | Aluminum | stamped | access a wedge to keep latch assembled in place inside door |
2 | pop rivot | latch | -- | brass | molded | holds latch case |
3 | turning shaft | outer doorknob | -- | steel | molded | functions key lock |
4 | screws x2 | outer doorknob | -- | brass plated | cold heading, thread wooling | locks inner and outer doorknobs in place |
5 | latch plate | latch | -- | brass | stamped | attaches to door jam (on door side) |
6 | strike plate | latch | -- | brass | stamped and bent | attaches to door jam, allows latch to fit in hole |
7 | spring | inner doorknob | -- | harden steel, nickel based alloy | wound, prehardened or hardened during fabrication | guides the lock by creating resistance in a locking shaft and keeping it aligned in a locking or unlocking position |
8 | lock shaft | inner doorknob | -- | plastic and brass | two molded parts, press fitted | turns shaft into lock/unlock positions |
9 | ring | inner doorknob | -- | aluminum | stamped | serves as a buffer between knob spring and spring housing |
10 | inner doorknob torsional spring | inner doorknob | -- | steel | molded and wrapped | creates resistance when turning doorknob, prevents free spinning |
11 | spring housing | inner doorknob | -- | brass | stamped and bent | houses and secures torsional spring |
12 | outer plate locking mechanism | latch | -- | brass | stamped | attaches to door, similar to strike plate |
13 | inner plate locking mechanism | latch | -- | brass | stamped | wedges between #12 and the door |
14 | latch | latch | -- | steel | molded | latches door to door jam |
15 | lock attachment | latch | -- | steel | molded | attaches to latch, does not slide when locked |
16 | face for outer doorknob | outer doorknob | -- | brass | stamped | aesthetically pleasing |
17 | hook | latch | -- | brass | stamped | hooks to latch or lock attachment |
18 | large hooks x2 | latch | -- | steel | stamped | pulls back latch |
19 | hook mechanism plate | latch | -- | plastic | molded/injection molding | hooks # 18 to latch |
20 | small hook from lock | latch | -- | brass | molded | (unknown use) |
21 | pin | latch | -- | brass | stamped and bent | adjusts locking mechanism between two different lengths |