A pullstring (pull string, pull-string), pullcord (pull cord, pull-cord), or pullchain (pull-chain, pull chain) is a

string String or strings may refer to: *String (structure), a long flexible structure made from threads twisted together, which is used to tie, bind, or hang other objects Arts, entertainment, and media Films * ''Strings'' (1991 film), a Canadian anim ...

, cord, or

chain A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. A ...

wound on a spring-loaded spindle that engages a

mechanism Mechanism may refer to: *Mechanism (economics), a set of rules for a game designed to achieve a certain outcome **Mechanism design, the study of such mechanisms *Mechanism (engineering), rigid bodies connected by joints in order to accomplish a ...

when it is pulled. It is most commonly used in

toy A toy or plaything is an object that is used primarily to provide entertainment. Simple examples include toy blocks, board games, and dolls. Toys are often designed for use by children, although many are designed specifically for adults and p ...

s and motorized equipment. More generally and commonly, a pullstring can be any type of string, cord, rope, or chain, attached to an object in some way used to pull or mechanically manipulate part of it.

Toys

Perhaps the simplest pullstring toy is the

yo-yo A yo-yo (also spelled yoyo) is a toy consisting of an axle connected to two disks, and a string looped around the axle, similar to a spool. It is an ancient toy with proof of existence since 440 BC. The yo-yo was also called a bandalore in th ...

(c. 460 BCE). The jumping jack is a more complicated animated puppet paper doll that uses a pullstring to move its arms and legs up and down. Trompos and some

spinning top A spinning top, or simply a top, is a toy with a squat body and a sharp point at the bottom, designed to be rotation, spun on its vertical Axis of rotation, axis, balancing on the tip due to the gyroscopic effect. Once set in motion, a top will ...

s use a string that is wound around the top and then pulled to make it spin. More recent toys include

doll A doll is a physical model, model typically of a human or humanoid character, often used as a toy for children. Dolls have also been used in traditional religious rituals throughout the world. Traditional dolls made of materials such as clay and ...

s, such as Chatty Cathy (1959), Charmin' Chatty (1963), Talking Tamu (1970), Look Around Crissy (1972), Sky Dancers (1994), and

Sheriff Woody Sheriff Woody Pride (or simply Woody) is a Character (arts), fictional Pullstring, pull-string cowboy doll who appears in the Disney–Pixar Toy Story (franchise), ''Toy Story'' franchise. In the films, Woody is one of the main protagonist, pr ...

(from the ''Toy Story'' franchise), that have a pullstring built into them that activates a speaker when it is pulled, causing the doll to say a built-in phrase. The Blythe doll (1972) has a pullstring that changes the doll's eye color. Other non-doll toys like See 'n Say (1965). The earliest

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...

with a pullstring included in it is an 1886 "Toy Bowling-Alley".Toy Bowling-Alley
Thomas Kochka, filed 11 December 1886 (retrieved 31 January 2012 from

Google Patents Google Patents is a search engine from Google that indexes patents and patent applications. Contents Google Patents indexes more than 87 million patents and patent applications with full text from 17 patent offices, including: * United States P ...

)

Engines

Many motorized

lawn mower A lawn mower (also known as a grass cutter or simply mower, also often spelled lawnmower) is a device utilizing one or more revolving blades (or a reel) to cut a lawn, grass surface to an even height. The height of the cut grass may be fixed by ...

chainsaw A chainsaw (or chain saw) is a portable handheld power saw, power saw that cuts with a set of teeth attached to a rotating chain driven along a guide bar. Modern chainsaws are typically gasoline or electric and are used in activities such as t ...

s, portable generators, and portable

outboard motor An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method ...

s use a pullstring or pullcord attached to a

handle A handle is a part of, or an attachment to, an object that allows it to be grasped and object manipulation, manipulated by hand. The design of each type of handle involves substantial ergonomics, ergonomic issues, even where these are dealt wi ...

as a manual ignition device. Some vehicle engines are also started with pullchains, such as the early-1900s Puckridge, or pullcords, like the pre-release version of the

Citroën 2CV The Citroën 2CV (, , lit. "two horses", meaning "two Tax horsepower#France, ''taxable'' horsepower") is an economy car produced by the French company Citroën from 1948 to 1990. Introduced at the 1948 Paris Paris Auto Show, Salon de l'Automobi ...

car, and the

DKW RT 125 The RT 125 was a German two-stroke motorcycle made by DKW in Zschopau in the 1930s, IFA and MZ in the 1950s and early 1960s, and DKW in Ingolstadt in the 1950s and 1960s. "RT" stands for , . In the 1930s DKW pioneered the Schnürle two- ...

scooter. Early jet engines such as the

Junkers Jumo 004 The Junkers Jumo 004 was the world's first production turbojet engine in operational use, and the first successful axial compressor turbojet engine. Some 8,000 units were manufactured by Junkers in Germany late in World War II, powering the Mess ...

used a Riedel two-stroke starter motor actuated by a pullcord.

Weapons

Some grenades such as the German Models 24, 39, and 43 have pullcords. Some machine guns such as the M73 machine gun and

M85 machine gun The M85 is a heavy machine gun firing .50 BMG ammunition that was used primarily for turreted applications in armored fighting vehicles. It was intended to replace the venerable M2 machine gun with a smaller and much lighter weapon, suitable f ...

use a pullchain to charge and/or fire them. The

Kord machine gun The Kord-12.7 mm heavy machine gun is a Russian design that entered service in 1998 replacing the older NSV machine gun. Externally the weapon resembles the NSV; however, the internal mechanism has been extensively reworked, changing from a h ...

uses a device to cock the weapon. Various

Booby trap A booby trap is a device or setup that is intended to kill, harm or surprise a human or an animal. It is triggered by the presence or actions of the victim and sometimes has some form of bait designed to lure the victim towards it. The trap may b ...

weapons and devices have used cords/cables.

Transport

A train's emergency brake can be a cord or chain that will stop the train when pulled. Some

transit bus A transit bus (also big bus, commuter bus, city bus, town bus, urban bus, stage bus, public bus, public transit bus, or simply bus) is a type of bus used in public transport bus services. Several configurations are used, including low-floo ...

es and trams/trolleys have a pullcord, also known as a bell cord, that a passenger can pull to signal the driver that they are requesting a stop. Many newer vehicles now use buttons to request stops instead. The Jaguar XK120 sports car's doors have no external handles so it uses an interior pullcord instead.

Other

Some types of

window blind A window blind is a type of window covering. There are many different kinds of window blinds which use a variety of control systems. A typical window blind is made up of several long horizontal or vertical slats of various types of hard mate ...

s and

curtain A curtain is a piece of cloth or other material intended to block or obscure light, air drafts, or (in the case of a shower curtain) water. Curtains are often hung on the inside of a building's windows to block the passage of light. For instan ...

s use a cord pull to open, close, raise, and lower them. Some types of ladders like the

extension ladder A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladd ...

and

attic ladder An attic ladder (US) or loft ladder (UK) is a retractable ladder that is installed into an attic door/access panel. They are used as an inexpensive and compact alternative to having a stairway that ascends to the attic of a building. They are usef ...

can have a pullstring that pulls it down from the ceiling. A dock plate can use a pullchain to move it. Some

gate A gate or gateway is a point of entry to or from a space enclosed by walls. The word is derived from Proto-Germanic language, Proto-Germanic ''*gatan'', meaning an opening or passageway. Synonyms include yett (which comes from the same root w ...

s have a pullstring on its

latch A latch or catch (called sneck in Northern England and Scotland) is a type of mechanical fastener that joins two or more objects or surfaces while allowing for their regular separation. A latch typically engages another piece of hardware on the ...

. A

pull switch A pull switch, also known as pull-cord switch, or light pull, or pull chain is a switch that is actuated by means of a Link chain, chain or pullstring, string. History An electric pull switch is attached to a toggle type switch: one pull to s ...

uses a chain or string to actuate a switch, commonly used in lighting and

ceiling fan A ceiling fan is a mechanical fan, fan mounted on the ceiling of a room or space, usually electric power, electrically powered, that uses hub-mounted rotation, rotating blades to wikt:circulation, circulate air. They cool people effectively by ...

s. Modern flush toilets use a pullchain attached to a lever that lifts the plunger to release water into the toilet bowl. The photoplayer uses pullchains to generate sound effects for silent films. Pre-1990s North American diesel locomotive train horns used a lever or pull cord to actuate an air valve. Older

steam whistle A steam whistle is a device used to produce sound in the form of a whistle using live steam, which creates, projects, and amplifies its sound by acting as a vibrating system. Operation The whistle consists of the following main parts, as s ...

s were almost always actuated with a pull cord. Some

grandfather clock A grandfather clock (also a longcase clock, tall-case clock, grandfather's clock, hall clock or floor clock) is a tall, freestanding, weight-driven pendulum clock, with the pendulum held inside the tower or waist of the case. Clocks of this styl ...

s have a pullchain to raise the weights in order to wind the clock's gears. A

lifejacket A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suit that is worn by a u ...

has a pullcord used to inflate it.

Variants

bow string A bowstring joins the two ends of the Bow and arrow, bow stave and launches the arrow. Desirable properties include light weight, strength, resistance to Abrasion (mechanical), abrasion, and resistance to water. Mass has most effect at the center ...

is perhaps the simplest type of pullstring that pulls a bow's ends together. A ripcord is a type of pullstring used to release a parachute. A drawstring is a type of pullstring used in many aspects of the fashion industry and in bags as a closing device.

References

{{reflist Hardware (mechanical) Chains