Babyproof door knob lock

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(Bill of Materials (Doorknob))
(Bill of Materials (Doorknob))
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| hook mechanism plate || latch || -- || plastic || molded/injection molding || hooks # 18 to latch
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| hook mechanism plate || latch || -- || plastic || molded/injection molding || hooks #18 to latch
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| pin || latch || -- || brass || stamped and bent || adjusts locking mechanism between two different lengths
| pin || latch || -- || brass || stamped and bent || adjusts locking mechanism between two different lengths
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! 22
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| black plastic || inner doorknob || -- || plastic || molded || (unknown use)
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! 23
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| locking mechanism housing || latch || -- || brass || molded and hole punched || houses small pieces in latch
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! 24
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| short pin || latch || -- || brass || molded || slides back and forth when size is adjusted
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! 25
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| plastic hooks || latch || -- || plastic || molded || slides back and forth when size is adjusted, may pull back when hook is tilted to latch
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! 26
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| latch housing || latch || -- || brass || molded and hole punched || houses mechanism controlling hooks for latch
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! 27
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| sliding plate || latch || -- || brass || molded and hole punched || slides back and forth, may align holes to those in the door or second housing piece
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! 28
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| two lock springs || latch || -- || steel/nickel alloy || wound || impacts latch mechanism
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! 29
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| inner doorknob ring || inner doorknob || -- || aluminum || stamped and molded || locks doorknob into rose, locks doorknob's cylindrical connector
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! 30
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| inner doorknob rose plate || inner doorknob || -- || brass || stamped and bent || attaches doorknob to door, acts as faceplate
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! 31
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| inner doorknob rose || inner doorknob || -- || brass || stamped and bent || connects door to doorknob, attaches and connects inner and outer doorknobs
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Revision as of 22:20, 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
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
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