An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office. It is usually a swivel chair, with a set of wheels for mobility and adjustable height. Modern office chairs typically use a single, distinctive load bearing leg (often called a gas lift), which is positioned underneath the chair seat. Near the floor this leg spreads out into several smaller feet, which are often wheeled and called casters. Office chairs were developed around the mid-19th century as more workers spent their shifts sitting at a desk, leading to the adoption of several features not found on other chairs.
History
One of the earliest known innovators to have created the modern office chair was naturalist Charles Darwin, who put wheels on the chair in his study so he could get to his specimens more quickly.
With the advent of rail transport in the mid-19th century, businesses began to expand beyond the traditional model of a family business with little emphasis on administration. The additional administrative staff was required to keep up with orders, bookkeeping, and correspondence as businesses expanded their service areas. While office work was expanding, an awareness of office environments, technology, and equipment became part of the cultural focus on increasing productivity. This awareness gave rise to chairs designed specifically for these new administrative employees: office chairs. This caught the attention of Otto von Bismarck, who is credited with popularizing the office chair by distributing them throughout parliament during his time in office. American inventor Thomas E. Warren (b. 1808), designed the Centripetal Spring Armchair in 1849 which was produced by the American Chair Company in Troy, New York. It was first presented at the 1851 Great Exhibition in London.[3] It was only around 1850 when a group of engineers in the United States began to investigate how chairs could improve health and relaxation by stressing posture and movement.
An executive office chair.
The office chair was strategically designed to increase the productivity of clerical employees by making it possible for them to remain sitting at their desks for long periods of time. A swiveling chair with casters allowed employees to remain sitting and yet reach a number of locations within their work area, eliminating the time and energy expended in standing. The wooden saddle seat was designed to fit and support the body of a sitting employee, and the slatted back and armrests provided additional support to increase the employee’s comfort. Like modern chairs, many of these models were somewhat adjustable to provide the maximum comfort and thus the maximum working time.
Types
There are multiple kinds of office chairs designed to suit different needs. The most basic is the task chair, which typically does not offer lumbar support or a headrest. These chairs generally cannot be sat in for more than a couple hours at a time without becoming uncomfortable, though they often offer more room to move than higher-end chairs.
Mid-back chairs offer fuller back support, and with the right ergonomic design, can be sat in for four hours at a time or longer. High-end chairs in this category, such as the Herman Miller Aeron, are comfortable for long periods.
Executive or full-back chairs offer full back and head support. Many executive chairs are designed to be sat in for eight or more hours at a time. These are typically the most expensive office chairs.
Ergonomics
In the 1970s, ergonomics became an important design consideration. Today, office chairs often have adjustable seats, armrests, backs, back supports, and heights to prevent repetitive stress injury and back pain associated with sitting for long periods.
Standards for the design and testing of office chairs include:
EN 1335:2012
EN 1728:2012
ANSI/BIFMA X 5.1
DIN EN 1335
DIN 4551
AS/NZS 4438
Common repairs
Over time office chairs wear out and break. Seat cushions may lose their softness or become discolored and are not repairable. Casters can stop spinning and scrape or carve grooves into the floor. These are standard parts and can be re-lubricated or replaced inexpensively. The gas cylinder used for height adjustment may leak and provide no support. The chair armrests may break or come loose; these can be repaired or replaced as well. The chair's main cylinder generally has a pneumatic tube that can lift or lower. To be aware of Noi That Hoa Phat in conjunction with other info, you could please go to this fabulous site https://hoaphatnoithat.vn/.
Latest added Global Pneumatic Tube Transport Systems Market research study by AMA Research offers detailed outlook and elaborates market review till 2026.
These tubes are used for transporting physical objects.
The latest edition of this report you will be entitled to receive additional chapter / commentary on latest scenario, economic slowdown and COVID-19 impact on overall industry.
Further it will also provide qualitative information about when industry could come back on track and what possible measures industry players are taking to deal with current situation.
Each of the segment analysis table for forecast period also high % impact on growth.
The Global Pneumatic Tube Transport Systems segments and Market Data Break Down are illuminated below: by Mechanism Type (Fully Automatic, Semi-Automatic), Components (Blower, Tubing, Diverters, Stations), System Configuration (Multiline System, Single-Line System, Point-To-Point System), System Type (Single Phase, Three Phase), End-Use (Medical and Healthcare, Commercial (Banks, Retails, Logistics and Warehouses), Industrial (Manufacturing Plants, Foundries, Recycling Facilities)) What's Trending in Market:Development of E-Commerce IndustryImproved Productivity Facilitated By Improved Supply Chain ProcessesChallenges:Existence of Small Players and New EntrantsRestraints:High Cost of Installation and High Switching CostMarket Growth Drivers:Rising Demand for Mechanization in Material Handling Across IndustriesIncreasing Medical Automation for Accuracy and Reproducibility The regional analysis of Global Pneumatic Tube Transport Systems Market is considered for the key regions such as Asia Pacific, North America, Europe, Latin America and Rest of the World.
Find top freelancers and part-time jobs in USA.
Get your work done now.Aworkforceworld: the best freelance marketplace in the USAre you someone who’s looking for an online job a freelancer?Are you tired of being manhandled by your boss?Or are you an employer looking to hire freelancers?Then welcome to Aworkforceworld.The top freelance services market place.We aim to help workers seeking work find jobs.
Stand help employers contact professional freelancers.To all those people struggling to find ways to make money use their expertise and provide their services from the comfort of their homes: we are your salvation.Join the Aworkforceworld community today and be your own bossUse your talents and skills to impress potential employers from all over the United States.
The questions are will you take it?.Aworkforceworld is a trusted marketplace which has been helping businesses gets in contact with remote freelancers in the US for years.
Our wide range of freelancers’sKnown for their quality of work and ability to meet deadlines.Whether you are someone who’s looking for a photo editor, illustrator, logo designer you name it we have it.
Our freelancers are skilled at software development,Digital marketing, content writing and so much more.
