FIG. In accordance with another aspect of this invention, an article of furniture having a variable height work surface includes a base with a pair of spaced vertical first supports. We stand by our adjustable surfaces. Still referring to FIG. In accordance with this invention apparatus for providing an adjustable work surface includes a base having a plurality of first supports and a planar work surface structure. Consequently, within the elastic limits of the shaft structure 44, it is not possible to rotate the pinions 43a and 43b relative to each other. In prior rack and pinion assembly driver, a pinion drives the rack to displace the load and must be sized accordingly. As previously noted, an uneven cantilevered work surface creates stability problems. However, lowering the post 33b requires clockwise motion of the pinion 43b when viewed from the left in FIGS. 1 that depicts details of this invention; FIG. Fixed height work tables are characterized by a fixed working surface height normally set for an average individual in either a sitting or standing posture. Both products are BLACK. A common motor drive rotates the sleeves in synchronism to adjust the vertical position of the intermediate frame with respect to the stationary frame and, simultaneously, the vertical position of the upper frame with respect to the intermediate frame. However, the roller 71 produces a clockwise offsetting moment so the post 33a does not deflect. U.S. Pat. Similarly a lower threaded aperture 80 aligned with the shaft 70 receives an adjusting screw 81 that bears against the member 63. The height of this table is adjustable via a foot pump bar, offering users a customizable experience, as well as easier wheelchair accessibility. In this specific embodiment, the posts 33a and 33b telescope or nest in the columns 25a and 25b respectively. A pair of rack and pinion mechanisms convert the relative linear motion into angular motion. Loading on the pinions and interconnecting shaft occurs only if there is some imbalance in the forces that tends to produce relative displacement of the pinions 43a and 43b. 1. The columns 25a and 25b collectively constitute spaced first supports that mount on the support surface or floor 22. Therefore, it is the intent of the appended claims to cover all such variations and modifications as come within the true spirit and scope of this invention. Southwest Solutions Group® provides movable adjustable height work surfaces to all types of business offices that are looking to give their employees sit or stand desks that are ergonomically correct. FIG. The rollers 51, 52 and 61 therefore define a vertical plane in the orientation shown in FIGS. 40 Adjustable Height Work Bench, Miscellaneous from Riley Surface World suppliers of new and used, industrial surface treatment and metal finishing plant and machinery. U.S. Pat. By far, adjustable height tables and desks are the best solution. Shelving towers can host technology, as well as provide people much-needed visual separation to minimize distractions and allow for moments of respite during a busy day. With over 340,000 style combinations, you can be sure that your Adjustable Surface fits in with your workplace and your lifestyle. This approach is easiest with only one person per workstation, which can then be adjusted once for that person, for example, by lengthening or shortening the legs of a workbench. 4,600,085 (Gagnon et al) discloses a platform lift mechanism having four upright telescoping segments. A link interconnects each of the motion converters to prevent unequal increments of the second motion in response to the first motions. The prior art is shown in FIGS. Each rack and pinion assembly, such as rack 42a and pinion 43a, converts linear motion between a post and column, such as the post 33a and column 25a, as a first motion into angular motion, as a second motion. Yet still another object of this invention is to provide an adjustable work surface that is not obstructed by any of the mechanisms for adjusting the position of the work surface. PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. Therefore the work table does not, by itself, limit the size of any item that it supports. This invention has been disclosed in terms of certain embodiments. This height adjustment produces relative linear motion between the first and second supports that is converted to angular motion. If you continue we assume that you consent to receive cookies on our website. U.S. Pat. A rigid linking structure is affixed to each of the pinions and lies along the common axis. Height adjusts from 26"-52" Adjustable leveling glides; Optional casters adds 1.75" to the minimum and maximum height; 1.125" thick high density particle board core top; Programmable control switch with three height presets and LED display; Choice of laminate finish; Choice of PVC edge color The platform has a shaft on each side, each shaft connecting two gear pinions that engage the corner post racks. Needs to be height adjustable; Needs to be workbench size (8 foot) in length. A deck assembly or work table unit 30 constitutes a second major assembly of the work table 20. It provides an adjustable height 37.4" x 20.5" desk that easily holds 2 or 3 monitors. A linear drive comprising an elongated screw and rotatable nut assembly moves the segments relative to each other to position the platform vertically. This assures that the work surface 21 remains horizontal during height adjustment. This mechanism 45 provides a four-point support between the column 25a and the post 33 to provide this stability. And not just any adjustable table will do. If an individual stands, he or she will be forced to stoop. As shown in FIG. 4 most clearly depicts the details of the rack 42a and pinion 43a. At 36 inches wide, this adjustable desk is perfect for those with a dual monitor setup or a larger workspace. The front channels 40a and 40b carry racks 42a and 42b fixed to the posts 33a and 33b respectively. Loading on the cantilevered table tends to produce a counterclockwise moment of the post 33a about the pinion 43a. So I could not base my designs off of any market item. 1 discloses an article of furniture constructed in accordance with this invention and configured as a work table 20 that provides a horizontal work surface 21. This establishes a constant compression loading between the gear teeth on the rack 40a and pinion 43a to prevent binding during operation. In accordance with another aspect of this invention, the drive mechanism 35 produces all the lift and generally carries all the load. A rigid shaft interconnects two pinions and prevents relative pinion rotation. Your custom-built adjustable desk is made to fit your workspace, no matter what your style. Elevate your work experience with the Husky 46 in. The 1.2 in. Working at an adjustable height table ensures that you can work to your fullest potential. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WINCHELL, PAUL W.;REEL/FRAME:007613/0395, Free format text: Stated alternatively, the rollers 51 and 52 and the rollers 60, 67 and 71 constitute one embodiment of first and second pluralities of guides intermediate each pair of the first and second supports that stabilizes the horizontal position of the second support or post 33a or 33b within the first support or column 25a or 25b and thereby stabilizes the work table 20 with respect to the base 23. 3-5. An article of furniture as recited in claim 1 wherein each said second support includes a post with a rear elongated channel formed therein and wherein each of said spaced guide means additionally comprises glides supported by said first supports for engaging said rear channel thereby to maintain the engagement of said rack and pinion during relative motion between said first support and post. A work table is cantilevered from posts supported for vertical motion inside columns from a base. 1,927,598 (Schlichter) discloses a portable elevating table that comprises a stationary lower plate, a stationary middle plate and a vertically adjustable upper plate. The work table 20 includes, as a first major assembly, a pedestal or base 23 with horizontal legs 24a that rest on the floor 22. The carriage has a motorized rotatable shaft with two pinion gears for engaging the respective gear racks on the vertical rails thereby to move the carriage vertically on the tower. Aluminum Work Platform Adjustable Height 24 to 35 inches Support 330 lbs Portable Folding Stool Ladder Non Slip. Height-adjustable desks allow workers to easily change postures from sitting to standing height throughout the day which can positively impact physical health. The rack 42a is recessed in the front channel 40a of the post 33a and the pinion 43a has an appropriate radius whereby the pinion 43a and rack 40a engage. Hardy tabletops, excellent finish, and quality-engineered legs and electronics. FREE Shipping by Amazon. Ready to ship solutions or create a custom bench or table. Consequently when the inner edges of the roller 71 are disposed in the channel 41a, they engage side wall 72 and 73 of the rear channel 41a to prevent lateral displacement. 1 and in slightly more detail in FIG. The mechanisms and supports can become bulky and interfere with clearance under the table Moreover these mechanisms are difficult to implement given problems in synchronizing the relative motions at each corner and can become expensive. The spaced rack and pinion structures therefore prevent the posts 33a and 33b from displacing unequal amounts. MaxKare Aerobic Step Platform Steppers for Exercise 4 Risers for Cardio & Strengh Training for Men & Women Indoor Exercise Fitness. Riley Surface World uses cookies to give you the best experience on our website. The Keil Standing Desk includes adjustable height shop desk. Take the typical 9-to-5 workday: researchers have shown that standing for even just 45 minutes out of each workday can improve focus and productivity. We make sure you’re able to make it your own. 3,851,854 (Roybal) discloses a scaffold having a stationary frame for supporting vertically movable intermediate and upper frames. Literally. A stabilizing structure in each column interacts with the post to maintain engagement between the rack and pinion structure and maintains the work table in a horizontal position during adjustment and use. Standup Dual Sit-Stand Height Adjustable Workstation (Applewood with Foam Keyboard Tray) HON 10700 Series Single Pedestal Desk with Three-Quarter Height Pedestal DESK,SGLPED,LF,66X30,MY (Pack of2) $1,242.40 $ 1,242 . Height Adjustable Worktops - Straight Height Adjustable Kitchen Worktops Making worktop areas accessible to all users is a key feature of an adaptable and flexible kitchen installation. Stainless steel worksurfaces are designed to withstand heavy assembly, manufacturing, and maintenance work. Left and right columns 25a and 25b extend vertically from the horizontal legs 24a and 24b. Each requires a support at each corner to provide stability and to provide even movement while the work surface remains horizontal. Roam is durable and built to last. Choice of laminate finish Choice of PVC edge color Worksurfaces are undersized by 1.5" side-to-side, and.5" from front-to-back from stated dimensions to allow for height adjustment when adjacent to other surfaces or furniture One might also eliminate the lower roller 60 and shaft 61 thereby to provide three-point support. The benefits of owning an adjustable height table are too good to pass up. Moreover, the Schlichter, Roybal, Pryor et al, Gagnon and Rousseau patents disclose structures that support the platform at four different positions. FIG. Our adjustable height work table systems are available with a manual, hydraulic hand crank, or electric height adjustment. 1 is a perspective view of an article of furniture that incorporates an adjustable height work surface in accordance with this invention; FIG. 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Axis 50 multi-functional work station features a manual operating mechanism rotates a first shaft and connected spiral gear nuts crank...