Yeah, I've notice that too.
I've seen pics here with headrest monitors installed. IIRC, it was done by momsbox.
I've seen pics here with headrest monitors installed. IIRC, it was done by momsbox.
Headrest
Anyone know if there are any headrest tvs yet for the cube? and why dont they go all the way down? i hate that......
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nice thanks i will check it out....
and i just cut the posts of my headrest so they sit flush with the seat now.. no more gap...
LOL an advertisement for headrest LCD screens just came up here.
The front headrests move forward to minimize neck injury during a rear-end impact. I would not want to do anything that could compromise that safety feature.
OH BOY....
I actually removed the headrest and it looked pretty good.
I am all about modding a car but the active headrest is a safety feature, I am not going to destroy an item meant to save my life. You will never appreciate such a device until it is needed or missed.
Just my $00.2
Just my $00.2
You have to realize that a head rest is not actually a "head rest" -- that may be convenient nomenclature, but it's incorrect! The head rest is actually a neck protector. It's entire purpose is to protect your neck vertebrae and spinal cord in case of collision. (Doesn't do much for side impact, but makes a real difference for both front and rear.)artreyman said:I actually removed the headrest and it looked pretty good.
Over and over again, I've seen people criticizing factory "head rest"s because they don't perform well at what the criticizers expect (comfort when resting ones head). The real problem is just that the criticizers don't appreciate the true purpose.
PS. This complaint is in the same category as people who object to wearing a seatbelt because it's a "hassle" to buckle, or it's "uncomfortable", or it "wrinkles" ones clothing. My brother is inclined to believe there's no need to fasten the lap belt if there's already a shoulder belt -- another dangerous perception.
Actually if you read up on Nissan's active headrest it doesn't help in a front end collision and wasn't designed for that purpose. It's sole purpose is to protect from neck and back injuries in a rear end collision (the airbag is for front end collisions). The force of a front-seat occupant on the seatback is used to activate the system, moving the head restraint forward immediately to firmly support the occupant's head and mitigate the impact to the neck region.
The way it works is that your body pushes back into the seat when you're hit from the rear, this action pushes back on the headrest posts causing the headrest to pivot forward at the top where the posts enter the seat back.
Cutting off a small bit of the posts to allow the headrest to sit flush would probably not prevent this from occuring. It wouldn't alter the pivot point but it would lessen the headrest's forward travel a bit simply because the head rest sits lower. But I don't think it would become ineffective, maybe a little less effective.
But even at that, it's effectiveness isn't just based on it's forward travel in an impact. It's also dependant on the passengers height in the seat. Like anything safety related, what works for a tall person may not work for a short person and vise verse. - Dan
http://www.nissan-global.com/EN/TECHNOLOGY/INTRODUCTION/DETAILS/ACTIVE-HEADREST/
The way it works is that your body pushes back into the seat when you're hit from the rear, this action pushes back on the headrest posts causing the headrest to pivot forward at the top where the posts enter the seat back.
Cutting off a small bit of the posts to allow the headrest to sit flush would probably not prevent this from occuring. It wouldn't alter the pivot point but it would lessen the headrest's forward travel a bit simply because the head rest sits lower. But I don't think it would become ineffective, maybe a little less effective.
But even at that, it's effectiveness isn't just based on it's forward travel in an impact. It's also dependant on the passengers height in the seat. Like anything safety related, what works for a tall person may not work for a short person and vise verse. - Dan
http://www.nissan-global.com/EN/TECHNOLOGY/INTRODUCTION/DETAILS/ACTIVE-HEADREST/
Frankly, I really wasn't addressing the action of the active head rest, but rather head rests generally. It could well be the Nissan active mode isn't designed to assist with frontal collision, but the fact is that in a frontal collision, first a person is thrown forward, and then they go backward (usually assisted with airbags these days). That rearward action can result in neck injury in the absence of a suitable head brace. Even without the Nissan active head rest mode, the head rest is an invaluable addition to occupant safety.
Oh, I couldn't agree with you more on the value of headrests in general. I think they can and do help prevent serious head and neck injury and only a fool would remove them. But I think this thread was started because someone wanted to modify their's to sit flush with the top of the seat back and at some point the Active headrest came in to play. My point wasn't to dispute weather or not they help protect in frontal or rear end collisions, only to point out that modifying them to sit flush would more than likely not cause them to become ineffective. - DanTrevorS said:Frankly, I really wasn't addressing the action of the active head rest, but rather head rests generally. It could well be the Nissan active mode isn't designed to assist with frontal collision, but the fact is that in a frontal collision, first a person is thrown forward, and then they go backward (usually assisted with airbags these days). That rearward action can result in neck injury in the absence of a suitable head brace. Even without the Nissan active head rest mode, the head rest is an invaluable addition to occupant safety.
No problem! My point is that the people talking about modification or removal of the headrests generally don't appreciate their role in occupant safety. There is too much emphasis on "look" and not enough understanding of function. As I said, this carries over to other aspects such as seat belts.
There are people who feel it's reasonable to gut the steel between the radiator and the nose fascia in order to make space for a large FMIC so that they can hopefully boost performance. These people are typically oblivious to the fact that that steel comprises the first crumple zone that helps protect them from death in a frontal collision.
There are people who feel it's reasonable to gut the steel between the radiator and the nose fascia in order to make space for a large FMIC so that they can hopefully boost performance. These people are typically oblivious to the fact that that steel comprises the first crumple zone that helps protect them from death in a frontal collision.
Trevor, again I wasn't meaning to downplay what you and others said in pointing out the import role headrests, seat belts, airbags, and what ever other safety devices cars have in them today. I'm a big believer in these safety devices and think people are foolish if they bypass or defeat them, or if they simply choose not to use them. My only point was to say that I think, looking at the design of the "Active Headrest's" a slight modification to make them sit lower would most likely not have a negative impact on their usefulness. Sorry if I offended, not my intent. - Dan
No problem, Dude 
! However, I would have one other concern if a person shortens the head rest posts with the specific purpose of having them sit flush to the seat backs. If this results in the head rest contacting their head below its center of mass, then they are actually defeating the purpose of the head rest (ie. they're raising their risk of neck injury in a frontal or rear collision). In fact, if that is the situation, then the "active" function will actually exacerbate the problem, rather than help solve it. If the headrest moves forward pushing below the heads center of mass, it will have the effect of both lifting and tilting the head backward -- making the situation distinctly worse.
! However, I would have one other concern if a person shortens the head rest posts with the specific purpose of having them sit flush to the seat backs. If this results in the head rest contacting their head below its center of mass, then they are actually defeating the purpose of the head rest (ie. they're raising their risk of neck injury in a frontal or rear collision). In fact, if that is the situation, then the "active" function will actually exacerbate the problem, rather than help solve it. If the headrest moves forward pushing below the heads center of mass, it will have the effect of both lifting and tilting the head backward -- making the situation distinctly worse.oh my god .. give up.. every car i have owned the headrest goes flush.. my head still hit the dam headrest so who cares ... next topic please...........
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