Tag: ergonomics

Electric Carts Ease Strain of Push-Pull Tasks

Pushing and pulling are the two most required actions in industrial and business settings. Unfortunately, pushing and pulling can place extreme stress on a worker’s body, often resulting in back, groin and other musculoskeletal injuries. Injuries can cost an individual business thousands of dollars each year in medical, insurance, disability and lost man-hour costs. An ergonomically designed electric cart pusher and motorized cart puller eliminates the physical strain of manually pushing and pulling heavy carts and wheeled equipment. An investment in ergonomic equipment is a sound investment in the health and safety of your workforce that can save your business thousands of dollars in unnecessary medical and insurance costs.

In manufacturing and distribution settings, the most common solutions to material handling tasks are:

  • to place products, parts and equipment on pallets for handling or
  • to utilize racks, carts and casters to move materials.

Electric carts come in a variety of shapes, sizes and configurations to fit the demands of the task and the capabilities of your workforce. An ergonomically-designed cart mover reduces the amount of force that must be exerted by the operator to maneuver a load. Various cart and wheel configurations are available to meet the needs of any task.

  • Carts, racks or equipment with casters can be easily turned and maneuvered with a CartCaddy power tug that feature a 5th wheel turning method.
  • Carts, racks or equipment with 4 swiveling casters require a cart with back end control.
  • Specialized CartCaddies and an electric tug have been designed to handle carts or equipment that have straight wheels or are on a rail.

Visit the DJ Products website to view our complete line of ergonomic electric carts, trucks and lifts. We offer ergonomic solutions for material handling applications.

The Rise of Ergonomics in Industrial Design

The staggering cost to American industry (see our previous post), coupled with the movement to make the workplace healthier and safer gave rise to the use of ergonomics in industrial design. Ergonomics is the science of fitting the job to the worker with an emphasis on worker safety and comfort. Its goal is to maximize efficiency and productivity by reducing worker fatigue and discomfort. The implementation of ergonomic principles in America signifies a radical change in the way industry approaches equipment design.

According to Wikipedia, “The term ergonomics is derived from the Greek words ergon (work) and nomos (natural laws)” and was first coined by Wojciech Jastrzebowski in an article written in 1857.  But the idea of ergonomics is not new. In the 5th century BC, the ancient Greeks used ergonomic principles in designing tools and performing certain tasks. Hippocrates’ description of a surgeon’s workplace shows ergonomic principles at work. Frederick Taylor, who pioneered Scientific Management in the late 1800s, sought the optimum method of performing a task. In experiments, he was able to triple the amount of coal workers could shovel by reducing the size and weight of the shovel. In the early 1900s, Frank and Lillian Gilbreth built on his method with their Time and Motion Studies. The Gilbreths worked to increase task efficiency by eliminating unnecessary steps and movements. In application, they reduced the number of motions required to lay bricks from 18 to 4.5, tripling hourly productivity. But it was the industrial demands of World War II that allowed the principles of ergonomics to be applied across a broad range of applications, heralding the modern birth of this new branch of applied science.

California was the first state to adopt an ergonomics standard in 1997, prompting other states to consider similar standards. While there is no overriding federal ergonomic safety standard, the Occupational Safety and Health Administration (OSHA) has developed ergonomic standards for specific industries and tasks. Compliance is addressed under OSHA’s General Clause.

Next time: The practical benefits of ergonomics

Using Ergonomic Equipment to Reduce Injury Rates

In our last post we talked about the challenges of managing a multicultural workforce in material handling, logistics, warehousing, fulfillment and other businesses. OSHA has reported higher than normal injury and on-the-job death rates for foreign-born Hispanic workers who comprise a growing segment of America’s hourly workforce. While language and cultural differences appear to be at the root of the problem, injury and death rates can be cut by using intuitive, ergonomically-designed, powered equipment to meet your material handling needs.

When communication is an issue, equipment that is easy to operate can improve training speed and reduce potential worker operation errors that can lead to injury. When controls are intuitively designed, communication gaps are narrowed further. What might not be grasped or fully remembered in verbal communication can be intuited by gesture or familiarity with similar equipment. This is not to say that a thorough training and safety program is not necessary, only that easy-to-operate equipment shortens the time between initial training and competent operation. Ergonomically-designed equipment is built around the worker, not the task, making it extremely user-friendly and an excellent choice in multicultural work environments.

Ergonomic material handling equipment that is electric or battery powered can further reduce injury and workplace death rates. In material handling situations, most injuries come from pulling, pushing or lifting loads and are the result of over-stretching or over-straining muscles. Powered equipment removes most of the need for heavy physical exertion from pulling, pushing and lifting tasks. By allowing the equipment to do the heavy lifting, so to speak, fewer situations are presented during the workday that might place workers at risk of injury.

To find out more about ergonomically-designed material handling equipment, visit the DJ Products website.

Ergonomic Wheel Design Improves Productivity

In our last post we talked about the importance of wheel design in reducing friction. But why is that important? The answer is that any design element that decreases the force that must be exerted by the operator to manipulate a piece of equipment increases efficiency and decreases the risk of potential injury. The result is greater productivity. This is the goal of ergonomic design both in the design of equipment and the environment in which it will be used.

When a wheeled piece of equipment is used, the operator must first overcome inertia and friction. The initial force necessary to start an object in motion is far greater than the sustained force necessary to keep it moving. Once in motion, optimum sustained, or rolling, force is achieved when a steady, constant velocity is achieved. Any need to decrease or increase velocity requires increased force to combat inertia. This is particularly noticeable during turning and maneuvering when significant force must be applied to change direction. Stopping a piece of wheeled equipment requires the same high level of force as starting it. As when accelerating, the operator must overcome high levels of inertia and friction to decelerate.

The four physical elements required to move a piece of wheeled equipment — starting, rolling, turning and stopping — can place tremendous stress on the operator’s musculoskeletal system. If performing these tasks manually, workers frequently overexert and strain muscles while applying the necessary force to start or stop a piece of equipment. Turning and positioning equipment can cause operators to assume asymmetric body postures during exertion which can cause musculoskeletal injury.

Ergonomically designed carts and tugs seek to achieve the optimal wheel size, type, placement and composition to decrease the force an operator must exert to move a piece of equipment.

Ergonomics Opponents Girding for Battle

California Democratic Representative Hilda Solis was confirmed yesterday as President Obama’s Secretary of Labor by a Senate vote of 80-17. The U.S. Chamber of Commerce is already said to be marshalling its forces. With a very pro-labor Solis at the helm, the chamber is anticipating a pitched battle over reinstatement — and probably toughening and expansion — of ergonomics laws instituted under Clinton but quickly wiped off the books by Bush.

Solis hails from California, the only state with ergonomics laws that have any bite to them — though Michigan is struggling to pass similar measures. California forces employers into compliance when workplace practices are found wanting. Business leaders and chamber executives fear that Solis will use the tough California model to craft national laws mandating ergonomic practices. Solis has been a persistent champion of labor rights and national ergonomics laws since her election to the U.S. House in 2001.

Solis can expect to have the President’s backing. On the campaign trail last year, Obama discussed the need to address musculoskeletal injuries, telling the Charlotte Observer that OSHA “must attack this problem with all of the tools at its disposal — regulations, enforcement, training and compliance assistance.” He is expected to reverse the Bush administration’s stance on national ergonomic standards.

The chamber considers national ergonomics standards to be “the mother of all regulations,” charging that they would cost businesses millions of dollars, which they call unconscionable at any time, but particularly given the current economy. In stumping against ergonomics regulations, the Chamber cites not only prohibitive expense, but suggests potential for substantial abuse. Opponents of ergonomics laws fear that businesses will be held legally liable for employee musculoskeletal and repetitive motion injuries that happen off the job.

“Let’s fact it: We all go through things in our lives as simple as bad sleeping habits or exercise or recreational activities that would cause our bodies to feel discomfort,” Mare Freedman, director of labor law policy for the chamber told Rob Hotakainen, a reporter with McClatchy Newspapers.

Supporters of national ergonomics laws cite rising health care costs and continuing workplace hazards that take a serious toll on U.S. workers as compelling reasons for instituting national ergonomics standards. Freedman said the chamber doesn’t dispute that providing a safe and healthy workplace is good business practice; however, the group thinks efforts should be voluntary, not mandated. Supporters of ergonomics, charge that many employers won’t act unless forced.

Changes Coming to U.S. Workforce

If the current economic downturn has revealed any truths, it’s that the basic premise upon which employer-employee relations has been based in America is changing and must continue to evolve. Business owners can no longer afford to assume the role of in loco parentis. The cost of comprehensive health care and lifelong pensions has simply become too great for employers to be expected to take care of their employees the way they did 50 or even 20 or 10 years ago.

Gone are the gold watch days when people could expect to find a job fresh out of high school or college and stay with the company until retirement 30 years later. Employees no longer feel that kind of loyalty toward their employers any more. And technology is changing so rapidly that business owners can’t guarantee that today’s job will be needed five years from now. Naturally, these aren’t new ideas. Like all things, the business world is always evolving; technological advances seeming to speed change with each coming year. What’s new is that long-standing employee groups like the United Auto Workers are finally realizing that the employer-employee patterns that worked for their grandparents simply aren’t viable in today’s workplace.

With unemployment at a 25-year high, jobs may be scarce now; but work will return. But when it does, jobs are likely to be different. Both employers and employees should prepare themselves to face a workplace that may be vastly different from the one we enjoyed before the economy fell apart. In its May 25, 2009 issue, Time magazine addressed these issues, predicting a workplace that is “more flexible, more freelance, more collaborative and far less secure.” According to Time, the next generation of business owners and managers will bring new values to a business world where women will control an increasingly bigger slice of the pie. With the demise of the steel industry and potentially terminal illness of the auto industry, Time also sees jobs leaving the Midwest in droves and moving to Texas and the Southwestern states or Georgia and Florida.

Job expectations, business education, career paths, benefits, retirement, work-life balance, environmental savviness, management style, office spaces and manufacturing are all in for some major upheaval. Next time we’ll explore coming changes in the business world.

Six Sigma + Ergonomics = Productivity Gains

Implementation of a comprehensive ergonomics program is often initiated by a business for the obvious safety and financial benefits realized in reduced workplace injuries and their attendant costs. What many business owners fail to realize are the significant productivity gains possible when ergonomic practices and ergonomically-designed equipment are adopted. Businesses that practice Six Sigma have been quick to see the potential for sustained productivity gains when ergonomics are integrated into workplace practices.

Utilization of the 5-step Six Sigma process can help a business build a successful and sustainable ergonomics program that will not only produce impressive immediate production gains, but sustain and continue to improve those results over the long-term. Six Sigma practitioners have found that adoption of ergonomic practices and use of ergonomic equipment optimizes worker performance, reduces production cycle time, increases cost competitiveness, and empowers workers. The end result is increased production, improved product quality, a happier workforce committed to improvement, and a satisfyingly positive impact on your bottom line.

Six Sigma’s disciplined, process-oriented approach to problem solving involves five steps that are easily applied to development of a comprehensive ergonomics program:

Define. It’s important to know what you’re working toward, so the Six Sigma process begins by establishing the goals to be achieved. Clearly define the problems to be addressed by reviewing injury, illness and workers’ compensation claim data for commonalities. Production bottlenecks, quality issues, rework costs, and warranty costs are other problem indicators. Don’t neglect the important area of staff morale. High absenteeism is indicative of low morale. After defining problem areas, establish specific goals for improvement in each area. You’ll also need to determine tracking metrics and establish support and educational resources.

Measure. In order to correctly measure improvement, you need to pinpoint your starting point. Collect information about your workers and their abilities. Define the parameters and potential risk of each task, paying particular attention to potential stressors, including site lines, posture, reach required, force expended, repetition, vibration, noise levels, work environment temperature, etc. Collect data about the individual steps required to perform each task.

Analyze. Analyze the data collected to discover the root cause of each problem. Evaluate and identify risks associated with each task. Don’t neglect to talk to the workers who actually perform each task. They can provide astute insight into what works, what doesn’t and how to improve the situation. Before implementation, carefully evaluate potential process improvements, equipment and tools for their ability to solve the problem as well as risk potential. Determine and prioritize improvements to be introduced into the workplace.

To be continued Friday

Peering Into Business’ Future

If America’s future workforce is going to be “more flexible, more freelance, more collaborative and far less secure,” as Time magazine prophesizes in its May 13, 2009 issue, it indicates that the American business paradigm as we know it is going to go through some major upheavals in the coming decade or two. Time suggests that American business is teetering on the cusp of major change. Powerful social forces have pushed us toward this edge, and the current economic disaster appears ready to tip us over and send us careening in new directions.

What’s driving the coming changes?

  • The Baby Boomer generation has been an unstoppable force since its inception. Sheer numbers have changed the focus of society each time Boomers have entered a new life phase. Now poised to enter retirement, America’s most populous demographic will again shift the country’s emphasis, this time to health care and aging issues. By 2030, one-fifth of American citizens will be over the age of 65, with the greatest growth in the over 85 demographic. As they have from the beginning, Boomers will drive the country’s business, social and political agendas. Expect growth in health care, pharmaceuticals, medical aids and equipment, security and alert services, home care, transportation and mobility, shop-at-home opportunities and travel. But don’t count Boomers down and out yet. The last of the Boomers won’t retire for another 20 years and many plan to and will be able to work into their 80s. With far fewer workers moving up to replace them, American business owners need to prepare for a grayer workforce.
  • The new generation of managers entering the business world seems to have been plugged in since birth. Quick to embrace new technology, they’re more comfortable in front of a computer checking their email and Facebook accounts or texting and twittering than they are communicating face-to-face. Expect business communication and social interaction to change to reflect the fast-paced, multi-tasking, solitary preferences of the tech-savvy earbud generation. This is the generation that will take integrated technology to new levels not yet even imagined. Business has already begun to lose its brick and mortar walls as more people work remotely. Expect the next generation to blow them away. The days of the cubicle are numbered!

More on Monday

Michigan Proposes Ergonomic Regs to Curb Injuries

In response to concern about workplace injuries, Michigan plans to institute new state regulations targeting repetitive-stress job injuries. Under the proposed rules, employers would be required to offer ergonomic training and work to correct reported injuries. State regulators would have the power to punish employers for repeated worker injuries. Critics are concerned that the rules will place another financial burden on Michigan’s already struggling economy.

California is the only other state with similar regulations, despite the fact that repetitive-stress job injuries are estimated by OSHA to cost America more than $20 billion annually, or about one-third of the total workers’ compensation costs paid by employers. “It’s a significant issue, even though the standard is fairly minimal,” said Doug Kalinowski, director of MIOSHA. “It’s been very contentious.”

In 2001, repetitive-stress injury regulations proposed by federal regulators were estimated to cost employers $5 billion. Those regulations were blocked by Congress. Michigan’s Small Business Association is concerned that the costs of training and reporting procedures will place a significant burden on small businesses and make it harder for them to compete nationally. Larger companies that have ergonomics programs in place would be exempted under the proposed rules.

Manufacturers are similarly concerned. “It’s a pretty broad issue and there are a lot of costs involved,” noted Amy Show of the Michigan Manufacturers Association. “We don’t know what true costs are going to be until we know how strict the department is going to be in enforcing this.”

The proposed rules would only apply to general industry. Construction, agriculture, mining and domestic employment are specifically excluded. But the construction industry and labor representatives believe that if the rules are adopted, it will only be a matter of time before they are expanded to include construction. “There are many within the building trades, or ironworkers, that suffer from repetitive-motion injuries,” said William Borch, president of Ironworkers Local 25 in Saginaw, Michigan and one of the labor representatives who reviewed the proposed rules.

“The problem is that … these types of injuries are not an imminent danger [to life], even though they can be career-ending types of injuries and cause long-term pain and suffering,” Borch said. Considering the risk to workers, Borch felt the proposed rules provided minimum standards. “It doesn’t seem like a lot to ask,” he said.

Advocates of the proposed rules argue that the implementation of ergonomics creates a safer work environment, increases productivity, minimizes downtime and decreases workers’ compensation costs — all formidable inducements to embracing ergonomics.

Forces of Change: What’s Driving New Business Paradigm?

The current economic crisis has created a tipping point for American business. While change is a normal and healthy part of growth, overwhelming economic forces are combining with powerful social forces to force major upheavals in the U.S. business paradigm. Economic necessity has eroded the normal inertia that usually slows change. Economically unviable businesses are failing, the weak are being culled from the competitive pack, and even the strong are struggling, forcing business owners to make hard decisions to ensure their survival. For the first time in decades, labor unions and their members are willing to reconsider compensation and benefit packages to save jobs. Add to this the looming retirement of America’s largest-ever workforce — the Baby Boomer generation — and its replacement with a new generation of tech-savvy workers ready to blow traditional business practices out of the water, and you have a potent climate for change.

Today, we continue our discussion begun last week of the coming forces that will change American business.

  • Today’s hierarchical management structures will all but disappear. Growing entrepreneurship will shift more tasks to contract workers. Changing priorities about work/life balance are already impacting corporate structure with more workers telecommuting and job sharing. The creative experiments implemented to save jobs and money during the recession — unpaid furloughs, reduced hours, lateral advancement — are likely to be retained, allowing for the more flexible career paths sought by the next generation of workers.
  • Women will finally crash through the glass ceiling and come into their own. Time foresees an 8% growth for women in the workforce, compared to 5% for men, and much of that growth will be at the management level. Backlash from the economic crises of the last two years is creating demand for the female management style. Studies indicate that female managers are more cautious about risk-taking than their male counterparts and are collaborative consensus-builders who practice transformational leadership that engages and motivates. 
  • Rising health care and pension costs are already forcing a major change in corporate benefit packages. The current model of employer as provider has become unsustainable. Employees are already being asked to share the burden of health care and retirement costs with their employers, a trend expected to increase. While this naturally concerns Baby Boomers nearing retirement age, benefits are of far less concern to the next generation of workers. In its May 25, 2009 issue, Time magazine reported that among 18- to-34-year-olds, base pay and career advancement were the top-ranked concerns. To decrease health care costs, both businesses and workers will support wellness initiatives and adoption of ergonomic equipment and practices in the workplace.