Babyproof door knob lock
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Revision as of 22:55, 19 September 2007
Bill of Materials (Doorknob)
Number | Name | Origin | Weight | Material | Manufacturing Technique | 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 |
22 | black plastic | inner doorknob | -- | plastic | molded | (unknown use) |
23 | locking mechanism housing | latch | -- | brass | molded and hole punched | houses small pieces in latch |
24 | short pin | latch | -- | brass | molded | slides back and forth when size is adjusted |
25 | plastic hooks | latch | -- | plastic | molded | slides back and forth when size is adjusted, may pull back when hook is tilted to latch |
26 | latch housing | latch | -- | brass | molded and hole punched | houses mechanism controlling hooks for latch |
27 | sliding plate | latch | -- | brass | molded and hole punched | slides back and forth, may align holes to those in the door or second housing piece |
28 | two lock springs | latch | -- | steel/nickel alloy | wound | impacts latch mechanism |
29 | inner doorknob ring | inner doorknob | -- | aluminum | stamped and molded | locks doorknob into rose, locks doorknob's cylindrical connector |
30 | inner doorknob rose plate | inner doorknob | -- | brass | stamped and bent | attaches doorknob to door, acts as faceplate |
31 | inner doorknob rose | inner doorknob | -- | brass | stamped and bent | connects door to doorknob, attaches and connects inner and outer doorknobs |
32 | inner doorknob | inner doorknob | -- | brass | molded/pressed/clamped | it is gripped by the user to engage latch from inside the door |
33 | spring housing | outer doorknob | -- | brass | stamped and bent | houses spring mechanism on the outer doorknob |
34 | bottom spring plate | outer doorknob | -- | steel | stamped | spring pushes against it to create torque |
35 | top spring plate | outer doorknob | -- | steel | stamped | spring pushes against it to create torque |
36 | outer knob torsional spring | outer doorknob | -- | steel | molded/wrapped | creates resistance when turning doorknob to prevent free spinning of the knob |
37 | outer doorknob rose plate | outer doorknob | -- | brass | stamped and bent | attaches doorknob to door, acts as a faceplate |
38 | outer doorknob rose | outer doorknob | -- | steel | molded and tapped | houses screws and connects inner doorknob to outer doorknob |
39 | outer doorknob ring | outer doorknob | -- | aluminum | stamped and molded | secures doorknob connector into rose |
40 | cylindrical connector | inner doorknob | -- | steel | molded | connects doorknob to rose and secured with ring |
41 | spindle | outer doorknob | -- | brass plated steel | molded | semi-cylinder that wraps around the turning shaft |
42 | outer doorknob | outer doorknob | -- | brass | molded/pressed/clamped | is gripped by user to engage latch from outside the door |
43 | cone-shaped connector | outer doorknob | -- | steel | molded | secures outer doorknob to rose and houses locking mechanism, spindle, and locking shaft |
44 | lock mechanism | outer doorknob | -- | steel/aluminum/other | stamped/sealed/molded/assorted | mechanism engages lock |