Timeline for Why do door knobs still exist?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| May 30, 2014 at 13:37 | history | edited | Level River St | CC BY-SA 3.0 |
added 234 characters in body
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| May 30, 2014 at 13:33 | comment | added | Level River St | @Mew Sorry I took two days to open your link. That image is so good it has to go in the answer! | |
| May 29, 2014 at 14:24 | comment | added | Phil Perry | Just a comment on catching clothing etc. on a lever. I once encountered a spherical metal doorknob where the nickel/chrome plating was faulty and had detached. If someone had grabbed it and twisted, they would have had a very nasty gash to their hand. That's probably so rare an event that it would not be considered an advantage of lever over knob (less sliding motion on a lever, more direct pressure). | |
| May 28, 2014 at 5:01 | comment | added | Mladen Jablanović | @steveverrill: You're right. Over here, when you buy a door, they already come prepared, with a drilled slot for the mechanism (there are 2-3 standard sizes for them). We're might be onto something here - standardization, rather than the difficulty of installing. | |
| May 28, 2014 at 4:28 | comment | added | Kaz Wolfe | See this: japantoday.com/images/size/x/2012/05/handles.jpg | |
| May 28, 2014 at 4:18 | comment | added | Brian S | @steveverrill, A lever handle does not require a separate locking mechanism due to being a lever handle (and therefore would not necessarily need the second hole for the lock). Additionally, many knobs are installed along with a dead bolt, even if the knob being used has a knoblock (thus requiring a second hole despite being a knob). | |
| May 27, 2014 at 20:15 | comment | added | Level River St | @MladenJablanović not so. For a round doorknob with built in lock: 1.Get a standard solid door. 2.Drill a large hole for the knob mechanism. 3. Drill a small hole for the tang that protrudes into the doorframe (the part that withdraws when you turn the knob. 4.install the mechanism through the knob hole. 5. drill some screwholes to fix the covers and install the screws. For a door handle with separate lock: drill a large hole for the handle mechanism and a smaller one for the keyhole. Now hack an enormous rectangular hole in the edge of the door to install the mechanism! Finish as before. | |
| May 27, 2014 at 17:13 | comment | added | Brian S | Note: there exist lever handles with a "knob" lock; you're not limited to having a separate locking mechanism. Most of the ones I've personally seen were privacy locks rather than security locks, but merely having a lever handle does not preclude the incorporation of a lock. | |
| May 27, 2014 at 16:38 | comment | added | Mladen Jablanović | I don't buy the "cheaper to install" part. Both styles IMO take the same amount of work to install. Both styles require doors with prepared slots for the lock and lever (or knob). Then all you have to do is mount the lock and lever. | |
| May 26, 2014 at 21:08 | comment | added | O. R. Mapper | Upon reading your answer, it just sounded a bit one-sided, but you're right about the question asking only about advantages. As for your explanation on that being specific to the USA, though, I am not convinced about that. "Low material costs and high labour costs" could be said about various European countries just as well. For example, I hear in the USA, there are even employees packing stuff into bags at supermarkets, which is something completely unknown in most European countries exactly because the labour cost is way too high for such tasks. | |
| May 26, 2014 at 21:01 | comment | added | Level River St | @O.R.Mapper true, but the question asks for advantages of round doorknobs, not disadvantages. Also, I'm the only one whose given a plausible explanation why there are more round doorknobs in the USA than other parts of the world. | |
| May 26, 2014 at 20:56 | comment | added | O. R. Mapper | While your explanations sounds reasonable, less of a chance for things getting "caught" is, at the same time, a disadvantage: How do you open and close a door with a doorknob when you are carrying something in both hands (say, a filled glass and a plate with food)? For lever style grips, both opening and closing is still easily possible with one's elbow. | |
| May 26, 2014 at 20:53 | history | answered | Level River St | CC BY-SA 3.0 |
