Child safety lock
Encyclopedia
A child safety lock is a special-purpose lock
Lock (device)
A lock is a mechanical or electronic fastening device that is released by a physical object or secret information , or combination of more than one of these....

 for cabinets, drawers, bottle
Bottle
A bottle is a rigid container with a neck that is narrower than the body and a "mouth". By contrast, a jar has a relatively large mouth or opening. Bottles are often made of glass, clay, plastic, aluminum or other impervious materials, and typically used to store liquids such as water, milk, soft...

s, etc. that is designed to help prevent children from getting at any dangerous contents. Young children are naturally curious about their surroundings and will always explore, but as they may be unaware of dangerous substances or situations, the results can be fatal. Numerous cases of poisoning have resulted from toddler
Toddler
A toddler is a young child, usually defined as being between the ages of one and three. Registered nurse, midwife and author, Robin Barker, states 'Any time from eight months onwards your baby will begin to realise he is a separate person from you...

s eating brightly-colored pills or spilling cleaning solvents.

Containers

In the United States, child safety locking mechanisms have been required by law since 1970 on all containers for potentially dangerous medicines and household cleaning products. These laws are enforced by the Consumer Products Safety Commission. These locking mechanisms may take several forms, but the most common is a design that requires a tab to be pressed firmly as the lid is twisted. Great strength and dexterity are not required to open the bottle, but the process is deliberately made to be unintuitive, and the children who might recklessly eat pills are unable to decipher the opening instructions. Parents and guardians are firmly admonished to keep all such containers out of the reach of children anyway, as no locking device is foolproof. It has become common practice in households to keep medicines and pills in high cabinets (sometimes locked) for safety. Cleaning agents, however, are still generally kept under sinks, where they are accessible.

Cabinet doors

Another type of lock is an inexpensive device which can be easily installed into drawers, cabinets, or other openables to prevent easy opening. It consists of a bendable plastic
Plastic
A plastic material is any of a wide range of synthetic or semi-synthetic organic solids used in the manufacture of industrial products. Plastics are typically polymers of high molecular mass, and may contain other substances to improve performance and/or reduce production costs...

 rod with a blunt hook on one side, and is situated on the inside of the drawer or cabinet. The hook catches on part of the drawer or door and prevents opening unless the rod is bent downward simultaneously to disengage the hook. These devices are helpful to pet
Pet
A pet is a household animal kept for companionship and a person's enjoyment, as opposed to wild animals or to livestock, laboratory animals, working animals or sport animals, which are kept for economic or productive reasons. The most popular pets are noted for their loyal or playful...

 owners as well — a typical housecat may be able to paw open a cabinet filled with food, but would have trouble operating the hook mechanism. Also available are electromagnetic cabinet locking devices that are activated via remote control http://www.SlyLock.com.

Automotive

Child safety locks are built into the rear doors of most cars
Automobile
An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...

to prevent rear seat passengers from opening the doors both during transit and while the vehicle is stationary; vehicles have been built with this feature since the early 1980s. Although called a child lock it is equally effective for adult passengers. The lock is typically engaged via a small switch on the edge of the door that is only accessible when the door is open. Some cars implement the locking mechanism as a rotary device which must be turned with the vehicle key, this design prevents "sticky fingered" passengers from disabling the lock as they enter the vehicle. In both designs the lock is completely inaccessible, especially to the passenger, when the door is closed. When the child lock is engaged, the interior handle is rendered useless, usually by disconnecting the handle from the latch mechanism, or by locking the handle in place. In this state the passenger cannot open the door from the inside and is effectively "locked in", the passenger can only be released by someone lifting the outside handle. Some vehicles implement window-locking mechanisms as well.

As well as the above mentioned mechanism, on many cars there are also window locks. These window locks prevent the windows in the back two doors of the car from opening all of the way. The windows only open to about three quarters. These were put into place from fear of a child 'falling' out of the window.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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