CA2609397A1 - Ergonomic laptop support frame and table - Google Patents

Ergonomic laptop support frame and table Download PDF

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Publication number
CA2609397A1
CA2609397A1 CA 2609397 CA2609397A CA2609397A1 CA 2609397 A1 CA2609397 A1 CA 2609397A1 CA 2609397 CA2609397 CA 2609397 CA 2609397 A CA2609397 A CA 2609397A CA 2609397 A1 CA2609397 A1 CA 2609397A1
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Canada
Prior art keywords
legs
support
band
portions
folded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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CA 2609397
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French (fr)
Inventor
Jon Scott
David Todd
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SYNERUS PRODUCTS Inc
Original Assignee
Individual
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Filing date
Publication date
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Priority to CA 2609397 priority Critical patent/CA2609397A1/en
Publication of CA2609397A1 publication Critical patent/CA2609397A1/en
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B23/00Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else
    • A47B23/002Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else supported only by a person

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Abstract

A portable table is supported on a user's knees by one or more flexible bands tensioned between side legs. An embodiment of the portable table can be adjusted to user positions by varying tilt and height to provide an ergonomic position of a laptop mounted on the table for wrist neutrality and display height. An embodiment has two support bands with independent tensioning to provide tilt and height adjustment. An alternate compact portable frame replaces the tabletop portion with folding cross-bars for reduced size and weight. A version of the compact frame provides rear height adjustment.

Description

ERGONOMIC LAPTOP SUPPORT FRAME AND TABLE
TECHNICAL FIELD

The present invention relates generally to accessories for mobile computer use, and more particularly to laptop support frames and tables.

SUMMARY OF THE INVENTION

According to one aspect of the present invention, a portable table with ergonomic flexible support is provided, including first and second table portions having top surfaces with substantially planar areas and having opposing inward and outward sides, a coupler connecting the inward sides of the first and second table portions, such that in a folded storage position, the first and second table portions can be positioned to a folded position and in an unfolded upright position the table portions are substantially in the same plane and such that outward sides of the first and second table portions are at their furthest position from the coupler, first and second support legs couplable near the outward sides of the table portions respectively, a flexible support band connected between the first and second support legs in a support band area under the table portions, wherein, in the unfolded upright position, the support legs extend substantially outward from the table portions and the flexible band provides a support suitable for placement of the table an ergonomic position above a users legs, and in a folded position the legs and said support band are secured within the folded table portions.

According to another aspect of the present invention, a portable frame with ergonomic flexible support is provided, including first and second legs, first and second side supports attached to the first and second legs, a first folding crossbar coupled between the first and second sides and having a first lock to lock the crossbar when fully extended, a second folding crossbar coupled between the first and second side supports, and having a second lock to lock the crossbar when fully extended, a flexible support band is connected to extend between the first and second legs, such that when the frame is in a storage position first and second folding crossbars can be unlocked and folded near the legs in a folded position, and in the unfolded upright position, the legs extend substantially outward from the folding crossbars and the flexible band provides a support suitable for placement of the top of the crossbars an ergonomic position above a users legs.
BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1: A PORTABLE TABLE WITH TWO SUPPORT BANDS: This FIG. shows front (Fig 1A) and bottom (Fig 113) views of a portable table with flexible support bands for height adjustment.
FIG. 2: A PORTABLE TABLE IN VARIOUS HEIGHT POSITIONS:
FIG. 2A shows a perspective cutaway view of a portable table. FIG.s 2B-2E show front and side views of the portable table adjusted for two seating positions of the user.

FIG. 3: A PORTABLE TABLE WITH FEATURES FOR LAPTOP
USE: This FIG. (Fig 3A) shows a perspective view of a portable table showing additional features for laptop use, including a tilting mouse table. FIG. 3B
shows a side view of the mounted mouse table.

FIG. 4: A PORTABLE TABLE WITH EXTENDED REAR SUPPORT:
FIG. 4A shows a side view of a portable table with extended front and rear legs for supporting open laptops. FIG. 4B shows a top cutaway view of a version showing extended rear leg folding for storage. FIG. 4C shows a side view of a version with rear leg extended.

FIG. 5: A PORTABLE TABLE MOUNTED ON SURFACE: FIG. 5 shows a side view of a portable table with front legs folded in for ergonomic use on a desktop.
FIG. 6: A PORTABLE TABLE WITH PRIVACY SCREENS: FIG. 6 shows a perspective view of a portable table with screens mounted at sides.
FIG. 7: A LIGHTWEIGHT PORTABLE TABLE: FIG. 7 shows a top folded view(7A), a bottom view(7B) and perspective view(7C) of a portable table with cavity in central table portion.

FIG. 8: SUPPORT BANDS: FIGs. 8A-H show top views of various support band configurations.

FIG. 9: BAND TENSIONING LEGS: FIG. 9A shows a top and side view of a leg with holes and band using a peg tensioning adjustment. FIG. 9B
shows a perspective view of a leg with posts and band with loop tensioning adjustment.

FIG. 10: BAND TENSIONING SPOOL: FIG. 10A shows a top view of a leg with a spool at the distal end for tensioning the support band. FIG. 10B
shows a top view of a leg with a spool at the proximal end for tensioning the support band.

FIG. 11: TABLE TOP BAND TENSIONING: FIG. 11 shows a side view of a portable table with band strap fastened at the table top for adjustment.
FIG. 12: PORTABLE TABLE WITH MANUAL ASSEMBLY: FIG. 12 shows a side and perspective views of a portable table with separable table portions.

FIG. 13: PORTABLE TABLE WITH SINGLE BAND AND TABLE
SPACERS: FIG. 13A shows a perspective view of a portable table with a support band and equal height legs. FIG. 13B shows a closeup view of height adjustor tabs on the table top. FIG. 13C shows a front view of the portable table loaded on a users legs.

FIG. 14: PORTABLE TABLE WITH DETACHABLE LEGS OF
5 VARIABLE HEIGHT: FIG. 14A shows a perspective view of a portable table with a support band and unequal height legs. FIG. 14B-C shows side views of portable table in two user leg positions. FIG. 14D shows top view of band and legs separated from table. FIG. 14E shows a bottom view of portable table with legs folded inside ready for storage.

FIG. 15: PORTABLE TABLE WITH ADJUSTABLE PIVOTING
SUPPORT LEGS: FIG. 15A shows a perspective view of a portable table with a support band and pivoting legs. FIG. 15B shows side view of portable table and adjustment of pivoting support leg. FIG. 15C-D show side views of leg adjustment for two user positions.

FIG. 16: PORTABLE TABLE WITH ADJUSTABLE TILT: FIGs. 16A-C
shows perspective views of a portable table from stored position to upright to tilted by the adjustable rotating leg. FIGs. 16 D-E show side views of version of the locking strut. FIGs. 16 F-G show front and cross-section views of coupling the side to the leg for rotation.

FIG. 17: PORTABLE TABLE WITH INTEGRATED PIVOT: FIG. 17 shows top and side views of a portable table top with hinge features integrated into table portions.
FIG. 18: LIGHTWEIGHT PORTABLE FRAME: FIG. 18 shows perspective and side views of a lightweight collapsible portable frame with two pivot arms providing support surfaces.

FIG. 19: COMPACT LIGHTWEIGHT PORTABLE FRAME: FIG. 19 shows perspective view of a lightweight collapsible portable frame with two pivot arms providing support surfaces and height adjustment.

FIG. 20: ASSEMBLY OF COMPACT LIGHTWEIGHT PORTABLE
FRAME: FIG. 20A-F shows perspective views of a lightweight collapsible portable frame in stages of assembly from folded in storage to unfolded and loaded with a laptop.
DETAILED DESCRIPTION OF THE INVENTION

A solution for the ergonomic problems of using laptops in various user positions and over increasing time of usage is to use one or more flexible bands as the primary support, also providing for suitable height spacing for ergonomics and comfort. Supporting a laptop or device on the user's legs using a flexible band enables reduced weight and size of a portable table or frame, improves heat isolation and is more useful and comfortable to pack for use by a highly mobile workforce.

Embodiments of the invention are described using the flexible band on various supports and with various adjustment designs for adjusting height and tilt.
The flexible band has the ideal properties of substantially non-stretch, breathable to avoid stain marks or sweating, and comfortable on legs. Examples of suitable material are fabric mesh, plastic film including perforated or laminated layers, natural fabrics (cotton, paper based) or hybrid natural or manmade fabrics, Gore-TexTM composites, fine metal mesh or chain mail.

For the purpose of describing the portable table we reference use of holding a laptop, however the portable table can be used for a wide range of other purposes - reading, writing, other electronic device use, food use, etc, and is not limited to laptop use.

FIGs. 1 and 2 illustrate an embodiment of the portable table 8 in side view (FIG. 1A) and bottom view (Fig 1B), perspective view (Fig 2A) and adjustment use (Fig, 2B-2E). In FIG. 1A, the portable table shows table portions 10a, 10b connected by a table coupler 14 for example a hinge, mounted on 4 support legs 12. The sides of table portion 10a,b connected by the table coupler are referred to as inward sides and the opposing sides are referred to as outward sides. The coupler can have a locking mechanism (not shown). Alternatively the table portions can be coupled with an interlocking finger design, eliminating the hinge 14.
The support legs have holes 13 at their distal end (extended), and are connected to the table by a pivot and via locking struts 11, such that the legs can be folded up against the underside or bottom of the table portions. Two flexible bands 21 a,b are configured as shown in FIG. 1 B cutaway, terminated at their ends with rod 20 connected to strings 18 which are threaded through the holes 13 in support legs 12 and through releasable clamps 16 such that the bands can be individually tensioned by releasing the corresponding clamps 16 and adjusting the string position then clamping again.

A cutaway view of portable table 8 is shown in FIG. 2A, illustrating the two bands 21 a,b, adjusted for tension by strings 18a,b in the directions shown by the arrows. The flexible band is terminated in a tapered segment 19. Additional holes may be placed on support legs 12 for height customization of different users (not shown). The termination of the bands to "single-point" string 18a,b allows for rotational freedom and improved ergonomic position of the straps under different seating positions.

The adjustment of the two flexible bands is shown for a deep-seated position where the user's pelvis is lower than the knees 22 as shown in FIG.
2B.
One strap (sectional A-A) is tightly tensioned as shown in view 2D, and the other (sectional B-B) is loosely tensioned as shown in FIG. 2E. This arrangement allows the user to maintain the laptop table substantially level and wrist neutral for keyboard ergonomics and reduced head tilt to view the screen.

The adjustment of the two flexible bands is shown for a high-seated position where the users knees 22 are lower than the pelvis as shown in FIG. 2C. In this example, the table orientation of FIG. 2B has been conveniently rotated 180 deg around a vertical axis such that flexible band (sectional A-A) is now facing outwards from the user and the other flexible band (sectional B-B) is facing inwards to the user. Alternately the user could adjust the bands in the original table orientation, particularly if a laptop (not shown) secured on top is mounted in a preferred pre-existing position. This alternate arrangement allows the user to again maintain the laptop table substantially level and at a "wrist neutral"
position for keyboard ergonomics and reduced head tilt to view the screen. The portable table can be similarly adjusted for a wide range of intermediate tilt positions and use for a range of seating positions and user size.
An advantage of the portable table is that when the table portions are folded towards each other, the legs fold in through collapsing the locking struts 11 and the flexible bands 21 a,b may be folded to fit between the two table portions.
Additionally a table lock (not shown) at the periphery of the table portions can be used to secure the table for travel and storage.

Additional features may be added to the portable table 8 as shown in FIG.
3. A mouse table 30 can be coupled to a table portion 10b through fastener 32 as shown in the cross-section view FIG.36, by screwing a knob through corresponding holes in mouse table 30 and table portion 10b. The mouse table may easily be adjusted to a level or preferred position by the user and then locked, independent of the table tilt position. For table positions where a laptop (not shown) being supported is tilted from horizontal, elastic members 34a,b can be positioned over the open surface of the laptop to secure the laptop and prevent slipping during use or placement of the portable table 8. The elastic members 34a,b may be secured through holes in the table portions 10a,b at an angle to the laptop as shown. Alternatively one long elastic member may be used parallel to the front edge of the laptop. The elastic member(s) 34 are preferably flat and thin such that when the user's wrists are placed over them, there is minimum impact on wrist neutral position. The table portions preferably have rounded corners 36 for easy placement into laptop bags alongside laptops without ripping the bag. As well known with modern high performance laptops, significant heat is radiated and exhausted from the laptop. The portable table dramatically reduces such heat 5 impacting the user's body, a significant advantage. To assist in airflow for the case of laptop exhaust fans located on the bottom of the laptop, cooling vent holes may be located on the table portions 10.

While there is a wide distribution of laptop sizes and weights, the typical 10 laptop median weight is approximately BLbs. When opened in use with the display folded out from the user and typically angled back slightly from vertical, typically the majority of weight is at the rear of the laptop due to the position of the display portion. When the laptop is raised by a portable table 8 positioned on the user's knees, the laptop may tilt over or rock when the user types on the keyboard, which is unsuitable for stability and eyestrain. An alternate embodiment of laptop table 8 is shown in FIG. 4, and compensates for the tendency of laptop table to tilt backwards. At the rear side of the table portions 10 a,b (rear being where the laptop back is positioned and maximum weight is loaded), leg 12 is replaced with fold back leg 40 mounted to table portions 10a,b by a leg pivoting mount 42.
The fold back leg 40 shifts the rear support location (and support band 21 b) outward from the table portions 10a,b to provide adequate stability. The spacing D of the foldback leg outward is bounded by the distribution of user's upper leg length.

One advantage of the folding table embodiment as described in FIG. 3, is that the table can be used directly on a desk surface 44. If a laptop is used directly on a desk, the user typically has to tilt their head down to look at it, resulting in long-term discomfort. FIG. 5 shows a portable folding table 8 mounted on a desk 44 that provides an ideal display position. The front legs 12 are folded in while the rear legs 13 are extended to contact the desk surface (support bands are not shown). When the display of laptop 46 is folded up, its height position becomes lifted within the ideal ergonomic eye position.

FIG. 6 shows a portable table embodiment with separable lightweight privacy screens 52. There is a need for maintaining privacy when using laptops in public areas. The screens 52 may be made of dark fabric or opaque flexible material. The screens 52 are supported on posts 50, which insert into holes on the top surface 10 a,b of portable table 8. When not in use, the screens can be rolled up onto the posts 50, for convenient storage in the underside of table portions 10a,b.

An ultra light embodiment of the portable table is shown in FIG. 7, in which substantial weight has been removed from the central regions of table portions a,b. Ultra light portable table 56 is shown in folded position in FIG. 7A
including a folded table portion 58 having central portion removed (unnumbered) with a mesh support 60 secured to table portion 58 such as by adhesive. The central portion is ideally as large as possible to support standard laptop dimensions securely (somewhat less than 11 x8" currently). Mesh support is for the purpose of retaining support bands 21 inside the table when folded, for convenience. Alternate embodiments can eliminate the mesh by substituting additional fasteners to secure the support bands 21 inside the table when folded. In FIG. 7B the ultra light portable table 56 is shown from the bottom when unfolded by rotating the portions about table coupler 14. Support bands 21 are connected to strings 16 threaded through legs 12 and 13, following which strings are secured by clamps 16. Band tension is adjusted by tightening or loosening the strings, then clamping.
Open regions of table portions 58 a,b are covered by a lightweight mesh 60a,b. A
perspective view of the ultra light portable table is shown in FIG. 7C, ready for supporting a laptop.
The support band 21 can be configured in many designs as shown in FIG.
8, to meet user requirements of comfort, breathability, flexibility, ruggedness and impact on user's clothes, and to rotate for adjustment when secured. FIG. 8a shows a support band system 22a in which the support band material 64 is terminated with reinforced ends 62 (for example thicker, stiffer or higher tensile strength materials) such that the band system 22a can withstand more repeated use. FIG. 8B shows a band support system 22b in which the band support material 21 is terminated on all sides by material 63 which can be similar to reinforced ends 62, to reduce edge-stretching effects. In both 22a,b the string 16 is attached at the approximate centerline of support material 63,64. FIG. 8C
shows a band support system 22c, in which the support band 65 is segmented into portions separated by folds 66, and showing a tapered termination 67 tapering to attach to strings 16. Support system 22c can be easily folded and unfolded inside the table portions 10a,b(not shown). The taper region 67 distributes the pressure on the user legs to reduce "pressure" points and increase comfort. FIG. 8D shows a band support system 22d with an array of strands 69, which are terminated at ends and attached to strings 16. This embodiment allows for variable stiffness and tension in the band, depending on the application. FIG. 8E shows band support system 22e using a stiffer woven fabric (for example a seatbelt type material) terminating in strings 16. FIG. 8F shows band support system 22f with support band made from flexible plastic sheet 74 (single layer or laminate). For example nylon or breathable Gore-Tex or perforated sheet material may be used. FIG. 8G
shows a band support system 22h, in which the ends are attached to a strap 76, which is wider than string 16, for improved reliability.
The height adjustment method described for the portable table embodiments of FIGs. 1,2 with two support bands, is to adjust the relative tensions between the "user facing" support band 21 a and "knee" support band 21 b, such that when loaded and positioned on the user's legs, the laptop supported on table portions 10a,b will be at an ideal ergonomic height for wrist placement and tilt angle for head placement. The benefit of continuous tension adjusting methods of several embodiments is that the user can fine-tune the height and tilt for individual ergonomics and various seating positions while the laptop is still mounted, for an improved position relative to the user. Also, at particular band tension settings the portable table can be reversed 180 deg around vertical axis to provide two positions without changing the band tensions. FIGs. 9-11 describe several designs of embodiments for adjusting the two support bands 21a,b, by modifying the support band ends and leg fastening features so that the user can easily adjust the tensions individually and preferably with one hand when necessary.

FIG. 9A,B show an embodiment for tension adjustment by attaching the end of the support band strings 16 to various positions on the legs. These embodiments use four individual legs, only one leg and one support band is shown for simplicity. In FIG. 9A, the string 16 is threaded through leg hole 80 and terminated at peg 78. The leg 12 has height holes 82 in which the peg can be secured and released to provide tension adjustment to the support band(not shown). Side view of leg 12 shows the peg 78 seated in a hole 82 at a height h from the lowest hole. The leg 12 is secured to mount fastener 83 for pivoting out from the table portion 10. The peg can be independently positioned in each of the legs 12 to provide two different tensions in the two support bands, and hence a preferred height and tilt position of the table portions. The peg method is secure if the table is moved or adjusted or folded for storage.
In FIG. 9B an alternate embodiment using loops and pegs is shown. Legs 12 have a series of pegs 85 positioned along the leg length. The string 16 of support band 21(not shown) is threaded through hole 80 in the leg and terminated in loop 84 which can be positioned on one of pegs 85 to adjust the tension of the bands. Alternately two corresponding patches of Velcro (not shown) can be used on the leg and string/strap attached to band 21 to adjust and attach the Velcro patches such that the tension is increased or decreased.

An alternate design for adjusting tension is shown in FIG. 10A,B, using a spool to wind the string end of the support band. In FIG. 10B, leg 12 is attached to table portion 10(not shown) with mount fastener 83 which allows the leg to pivot out to an extended position. The pivot end of the leg is defined as proximal and the extended end of the leg is distal. A spool 88 is secured to the proximal end of leg 12 by a pivot, and the spool has teeth selected to provide an increment of tension.
The leg 12 has a string hole 80 bored inside the leg from the distal end up to a hole in proximity to the spool, where the string exits and is attached to the spool securely. Plunger 86 is couplable to the spool 88 such that when the plunger is disconnected, the spool can be manually rotated for increased band tension or allowed to release string for decreased band tension. The plunger 86 can then be connected to spool to lock the tension position. FIG. 10A shows an alternate embodiment with spool 90 mounted at distal end of leg 12 by axle 92. String 16 is fed through hole 80 and secured to spool 90 for tension adjustment. Spool is released and secured by plunger(not shown).
An alternate embodiment of adjusting support band tension from above the table portions is shown in FIG. 11. There is convenience in having the adjustment at the table surface instead of the legs, where it is easier to access and see. String or strap 16 from support band 21 is positioned through a distal hole 80 (or cavity 95) in leg 94 and exits proximal the table portion, where strap termination 76 is routed through a hole 97 in periphery of table portion 10a. A table mounted releasable coupler 96 is connected to travel into and out of the side of hole 97 to secure the strap or string 76. The user can adjust tension by pulling out coupler 96 to release strap 76, pulling the strap up or allowing it to go down and then pushing coupler 96 into the table to lock the strap 76 at a desired band tension.

The table portions have been described as joined by a table coupler 5 14 such as a hinge as in FIG. 12A. An alternate arrangement is shown in FIG.

B-C in side and perspective views, in which the table portions are not hinged but manually separable and coupled through integrated features on each table portion.
Table portion 10a has protruding fingers 102 and opposing table portion 10b has corresponding recesses 104, such that the two portions can be pushed together 10 securely or separated easily for storage. The legs and support band (not shown) are attached as previously described.

An alternate method for tilting the laptop is shown by portable table 147 in FIGs. 13A-C. Making all legs the same height and having a tilt adjust on the top of 15 the table portions can reduce the complexity of the legs. The legs 12 of FIG. 13A
are all the same height h1. Also in this embodiment two legs instead of four are used, by forming a wide leg in an extended "U" shape with the two ends of the "U"
connected to the table portion. A single support band 21 is shown, and in the best mode embodiment the width of the support band is > 80% of the table portion width along the outward side of the table portion. The tension of support band 21 is fixed to support the table at a height h2 above the user's knees as shown in FIG.
13C. The knee end of the table portions 10a,b has tilt flippers 108 which are recessed in cavities 109 and can be pivoted up manually. The rear of the laptop can sit on the tilt flippers to increase the height of the display and the angle of the keyboard to the user's wrist/forearms. Additionally a range of heights can be achieved by variable height flipper (not shown) can be used, or a series of several flippers of varying height (not shown). In this two-leg embodiment, a single support band 21 can be secured to the two opposing joiners, as shown in FIG.
14.
Alternatively the portable table 147 in FIG. 13 can be configured with two support bands instead of one, with one support band connected at the front and one at the rear. While legs 12 are shown hinged with locking struts, in an alternate embodiment not shown, legs 12 can be detachable from holes in the underside of table portions, for assembly by the user.

An alternate simplified embodiment is shown in FIG. 14A-E, having two legs 12 that provide a fixed tilt to the portable table 8. Legs 12 have a joiner section 140 joining a short portion 141 and tall portion 142, selected for average user desired tilt. The legs are separable from table portions 10a,b by seating or removing from holes (not shown) in the periphery underside of table portions, for convenient compact storage of the legs and strap. The portable table 8 may be positioned to have the "high" leg portion 142 at the user facing side or the knee side. FIG.

shows the table positioned with the "high" leg portion 142 at the knee position with the user in a normal flat seating position with knees lower than hips, such that the rear of the laptop is raised and the user has a wrist neutral position for typing on the mounted Iaptop(not shown). FIG. 14C shows the table 8 positioned with the "high" leg portion 142 at the user facing position, for a user in a deep seat with hips below knees. In this position the table again holds the laptop in a wrist neutral position. The legs 12 are fixed to the support band 21, such that the leg and band can be detached from the table portions 10a,b (in a pin in socket arrangement) as shown in FIG. 14D. Then the legs are folded in interlocking manner to fit inside table portion 10a,b as shown in FIG. 14E for compact storage with the thinnest profile. This allows the portable table to be fitted easily alongside laptops in laptop bags or sleevesFlG.. Alternatively, the legs 12 can be attached by a pivot mount to fold in or out and have locking support struts, as described in other embodiments.
A portable table 150 with adjustable tilt and independent adjustable height is shown in FIG. 15A-D, using two legs coupled at only two locations to the table.
A preferred embodiment is to have independent and more continuous adjustment in height and tilt, and allow additional support at the knee side of the table for heavier laptops. As shown in FIG. 15A portable table 150 has two legs 152 attached at the table portion sides in a single location with a clamp knob 156. Legs 152 preferably have a curved shape upper portion and a straight bottom with an optional slot 154 for attaching support band 21. There are several vertical adjustment holes 158 that the clamp knob can be attached through to provide height adjustment. As shown in side view (FIG. 15B) the sides of table portions 10a,b have several horizontal adjustment holes 160, that can be used to shift the center of gravity of the supported laptop(not shown) in the horizontal direction to load more of the weight against the knees instead of the user's legs to reduce rocking or tilting of heavier laptop displays. Once the adjustment holes are selected and the clamp knob 158 inserted, the tilt of the table portions can be adjusted around the pivot axis along the centerline between both clamp knobs, to a desired setting and then the clamp knobs fully tightened to secure the legs to the table portions 10. Two table adjustments are shown in two user positions in FIGs.
15C-D. In FIG. 15C the user knees are below hips and the maximum height hole is selected and then table tilt selected to make a laptop on table portions be in wrist neutral position to a user. In FIG. 15D, the users hips are below knees and selecting a lower hole reduces the height and a different tilt is selected to maintain the wrist neutral position for the user, at an acceptable display height. When stored, the sides detach and are folded with the support band, inside the folded table portions. Alternatively, instead of a single support band, two slots are added to each leg to connect two support bands.

The table 180 in FIGs. 16A-C can be tilted at positions around a central pivot axis to provide continuously variable tilt adjustment, and has folding legs and sides for compact storage. In FIG. 16A the underside of table portion 10b is shown. The leg 182 and side 184 are designed to fit in a rotating manner as shown. Side 184 has a rectangular portion connected to table portion by hinge pins 186, a circular portion with outer perimeter width T and an adjustment arm protruding out from the circular portion in the same plane. Leg 182 has an arcuate portion for receiving the circular part of side 184, and this receiving portion has an inner slot of width >T for receiving the circular part of side 184 such that there is freedom of motion to rotate side 184 relative to leg 182. Leg 182 has an adjustment portion with indicia 185 marking spacer holes (not numbered) on it.
The adjustment arm 181 is contained within the inside area bounded by adjustment portion 183, to limit the range of tilt rotation to a useable range (for example 15 deg). Side 184 has a cutout slot from the rectangular portion to the center of the circular portion of a size to allow a locking strut 188 to be stored when folded as described in more detail in FIG 16 D-E.
FIG 16B shows portable table 180 in the upright position with the leg and side folded outward to vertical and the strut extended out to locking position between table portion and side 184. The leg 182 has a long slot cutout for securing the support band 21. The support band may be secured to the leg by other techniques common in the art such as bonding, riveting, etc. In this orientation with the table portion 10 level, the adjustment arm 181 of side 184 is pointing down. An adjustment pin 187 is inserted through one of the spacer holes in adjustment portion 183 and into a hole (not numbered) in the end of adjustment arm 181 to lock the side and leg in a fixed position. The leg and side at the opposing end of the table (not shown) are similarly folded out and adjusted to match. The table can now be used in a level position for holding a laptop(not shown). The adjustment portion can be selected for a wider or smaller rotation range as required.
For a user position where the user wants to tilt the table forward, the tilt adjustment of table 180 is shown FIG. 16C. Adjustment pin 187 can be removed and side 184 rotated such that the table portion 10b tilts forward, and adjustment arm 181 is at a new location within the inside area of adjustment portion 183.
Then the adjustment pin 187 can be reinserted through a different hole position in adjustment portion 183 and back into adjustment arm 181 to lock the side and leg combination at a new relative angle resulting in a tilt of the table portion 10b. The opposing leg/side combination can be similarly adjusted to match. Alternate methods for pivoting and locking the two opposing sides include detente holes in the leg 182 and bearing balls mounted on perimeter of side 184 to adjust to predetermined "snap" locations. Note that the strut is unaffected by the rotation adjustment. The benefits of table 180 are that the assembly from a stored position is easy for the user to just fold out the side and legs and the strut 188 locks automatically. Additionally tilt can be adjusted while the table is loaded with a laptop for fine-tuning. The side and leg must be rotated back to the position in FIG16B before folding and storage so that the support band 21, legs , sides and struts are seated in preferred locations in the underside of table portion 10b.

A detailed view of the locking strut 188 is shown in FIG16D for a telescoping strut having a hollow cylinder 190 connected to side 184 and a solid pin 191that seats and slides inside hollow cylinder 190. Solid pin 191 has a latch for automatically locking the strut when extended fully by gravity in the table upright position. The solid pin 191 stops at stop 192. For storage position with the strut folded, the latch is pressed to release the solid pin such that when the side 184 is folded onto table portion 10b the pin 191 is stored inside hollow cylinder 190.
Alternatively a folding strut 193 may be used as shown in FIG. 16E. The top portion 194 has a fixed pivot at side 184 and is joined to bottom portion 195 by a strut pivot pin(unnumbered). The bottom portion is connected to stop 192 at pivot pin 196. When the side is folded open, the strut extends so that top and bottom portions are relatively collinear. Locking features (not shown) may be added to limit the strut extension. When folded, the top and bottom portions nestle beside each other as shown, allowing for a thin profile of the folded portable table.

5 The coupled leg and side assembly in portable table 180, is detailed in FIGs. 16 F-G in two embodiments. FIG. 16F shows a view of the leg 182a,b and side 184, with cross-section as marked. The leg has a detachable top part 182b mounted (fastener not numbered) on bottom leg part 182b, to allow for assembly of the side into a groove 204 in the matching region of the bottom leg part, in a 10 tongue in groove fit. The circular portion of side 184 has tongue 202 of thickness T
extending from lip 200. The groove 204 is wider than T to allow for rotation of the side relative to the leg.

An alternate design in FIG.16G uses a one part leg 182 as previously 15 shown in FIG. 16A-C. The side 184 remains the same as FIG.16F. The inward facing wall of the previous groove is replaced by an open region, allowing the side 184 to be seated without requiring the leg to be in two parts. Retaining washers 197 are secured into circular recesses 196, to retain the side 184 in suitable position while allowing rotation of the side relative to the leg. As shown in cross-20 section, the circular recesses and washers are fitted to maintain the tongue within the leg. Four retaining washers are shown, however more or less may be used as suitable, or alternatively a single crescent shaped retaining washer could be substituted.

An alternate embodiment of the portable table 164 is shown (table top only) in FIG. 17. The table portions 160a,b have integrated hinge tabs on opposing sides that interlock to provide a hinge hole 162 such that a hinge pin(not shown) can be inserted to join the two table portions.
For the case of minimum weight to maximum support, FIGs. 18A-B shows a portable frame 170 having two folding crossbars 174, 176, as the best mode since it provides support with reduced weight, thickness and size. The laptop (not shown) is supported on two crossbars instead of a table. Two side rods 172 are connected to support band 21 and having holes 177 and coupler 178. Folding crossbar 174 has two identical L shape portions which can be assembled with a coupler 173 to provide a cross-bar that is connected to side rods at holes 177 a fixed height above the side rods. Folding cross-bar 176 similarly has two L
shape portions but with a longer vertical segment than cross-bar 174, and is adjustably connected at coupler 178 such that the height of the crossbar 176 above the side rod can be varied equal or greater than the crossbar 174 height. As shown, the height is cross bar 176 is higher than crossbar 174 to provide a tilt for use as shown in cross-section view in FIG. 18B with laptop 46 mounted on the crossbars.
Optional securing strap 175 can be placed over the front of the laptop as shown.
Optionally non-stick material (non-shown) can be placed on the top of crossbars to prevent the laptop 46, from slipping. The cross bar can alternatively have open portions or slots (not shown) that the non-stick material can be secured within. An alternative embodiment may use two support bands in two slots of the legs, positioned near the front and rear of the legs.

It is desirable to have an embodiment with the most compact storage and lightest weight for extreme mobile users who travel a lot. Eliminating the solid table portions allows for weight and size reduction, as shown by the support frame of FIG. 19. Support frame 111 includes two sides 114 mounted on two legs 115 connected to support band 21, and two folding cross-bars 112 coupled to the two sides such that the frame folds to a compact thin size in a storage configuration as shown in FIG. 19A. Laptop (not shown) is supported on the two folding crossbars at various heightltiit positions. For illustrative purposes the terms front and rear will be used as typically use with the laptop lifted at the user's knees. These terms are relative for illustrative description as the support frame could easily be used reversed 180deg about the vertical axis, so the "back" is facing the user and "front"
is facing away from user. Outwardly means away from the frame and inwardly means inside the frame periphery.
Support band 21 is shown as a single piece but could be multiple segments, and is connected to opposing legs 115 at leg base 120. One fastening method is the support band folds over base 120 and is bonded or sewn to itself at seam 122, to provide a fixed uniform tension across the user's legs when in use. Legs have thickness t and a base portion 120 joining two vertical portions 110 and 113.
One vertical portion 113 has a top portion 117 thinner than t and a pivot hole and the other vertical portion 110 is taller (for example 2-4") and has an inward portion 121 thinner than t and spaced cavities 126 facing inwardly. The side 114 is coupled onto leg 115 and has a corresponding front portion 123 with a slot 125 that fits over the thinner top portion 117 of vertical leg portion 113 and is coupled with a pivot pin 118. Front portion of side 114 has a cutaway for accepting a folding crossbar and hinge holes (not numbered) for accepting crossbar pivot pin 116. The rear portion of side 114 has a slot 127 facing outwardly that fits the thinner portion 121 of vertical portion 110 of leg 115, and a top portion 129 extending inwardly to create a cutaway region 131. Top portion 129 has holes (not numbered) for receiving pivot pin 116 of crossbar, and an angled hole 133 for receiving adjustment pin 128. Cutaway region 131 is of width W2 wider than the cross bar width W1, so that the cross bar can be folded within thickness t, in a stored position. Each folding cross-bar has two bar portions 112a,b joined by pivot pin 131, When fully extended as shown, the two bars have overlapping fingers which can be locked using a slider 130, to limit overextension. The non-locking ends of the two bars 112a are coupled by pivot pins 116 to side 114a at both front portion 123 and rear portion 129 such that when folded into side 114a they sit substantially flush within the thickness of side 1 14a, for compact storage.
Similarly ends of crossbars 11 2b are coupled to side 114b by pivot pins.

Rear portion 129 of sides 114a,b can be adjusted in height and pin 128 can be inserted through hole 133 into selected cavity 126 fixing a rear height position, while front portion 123 pivots around pin 118. The portable frame 111 now has two locked crossbars, the rear one typically set higher than the front crossbar, supported firmly on legs 115 holding support band 21 to be placed on user's legs for holding a laptop at an ergonomic height and tilt above users legs.
The support frame 111 of FIG. 19 is stored in a compact package. The steps of assembling the frame for use, from storage are shown in FIGs. 20A-F.
In FIG. 20A, the support frame 111 is shown in stored position, in this example the support band 21 is wrapped around the folded frame parts. In FIG. 20B, the support band is unwrapped showing the folded frame parts nestled together. In FIG. 20C, the crossbars are partially unfolded and the legs are positioned vertically. Fingers 132 are shown near the center pivot of the two bars. In FIG.
20D the crossbars are fully extended(tensioning the support band to proper tension), and slider 130 is moved to lock the crossbars by sliding over the fingers 132. The rear crossbar height is adjusted up in FIG. 20E for supporting the laptop in a preferred tilted position. In FIG. 20F, the laptop is shown mounted in a selected tilt and height position and secured by elastic 190 around the front crossbar and secured to side legs or pivot arms. Note the rear of laptop is well forward of the rearward edge of support band 21, reducing tilting and bounce due to the rearward center of mass of the opened laptop.

Alternate embodiments for the support frame may include alternate locations of the pivot pins or pivot mechanism, using self-locking pivot arms that must be released to fold (like tent pole rods), wider leg portions and alternate height adjustment designs such as telescoping arms or pin in socket. Any of the embodiments of the portable table not shown with locking struts can optionally have locking struts connected between the side or leg to the table portion.

Claims (2)

1. A portable table with ergonomic flexible support, comprising;

first and second table portions having top surfaces with substantially planar areas and having opposing inward and outward sides, a coupler connecting said inward sides of said first and second table portions, such that in a folded storage position, said first and second table portions can be positioned to a folded position and in an unfolded upright position said table portions are substantially in the same plane and such that outward sides of said first and second table portions are at their furthest position from said coupler, first and second support legs couplable near the outward sides of said table portions respectively, a flexible support band connected between said first and second support legs in a support band area under said table portions, wherein, in said unfolded upright position, said support legs extend substantially outward from said table portions and said flexible band provides a support suitable for placement of said table in an ergonomic position above a users legs, and in a folded position said legs and said support band are secured within said folded table portions.
2. A folding portable frame with ergonomic flexible support, comprising;
first and second legs, first and second side supports attached to said first and second legs, A first folding crossbar coupled between said first and second sides and having a first lock to lock said crossbar when fully extended, A second folding crossbar coupled between said first and second side supports, and having a second lock to lock said crossbar when fully extended, A flexible support band is connected to extend between said first and second legs, such that when said frame is in a storage position first and second folding crossbars can be unlocked and folded near said legs in a folded position, and in said unfolded upright position, said legs extend substantially outward from said folding crossbars and said flexible band provides a support suitable for placement of the top of said crossbars an ergonomic position above a users legs.

Dependent claim Options for full application Wherein side supports have cutouts and in a folded position, said crossbars are seated into cutouts.
Add height and tilt adjust Flexible band is woven, thin plastic sheet, hybrid with partial stiff portions Preferred width of fabric is > 80% of tabletop width Matching sizes of tabletop sides Latch for locking the two halves Table lock for locking the sides flat Bungees for securing the laptop Cooling holes Height adjustment on tabletops Height adjustment on legs 4 separate legs with Cord localizer Legs offset and/or spread out for unequal load distribution at the back Plastic tops, metal tops, hybrid metal and plastic tops Fabric Mesh, Breathable Replace coupler/hinge with integrated coupling features in both table halves
CA 2609397 2007-10-15 2007-10-15 Ergonomic laptop support frame and table Abandoned CA2609397A1 (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2609397 CA2609397A1 (en) 2007-10-15 2007-10-15 Ergonomic laptop support frame and table

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CA2609397A1 true CA2609397A1 (en) 2009-04-15

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CA 2609397 Abandoned CA2609397A1 (en) 2007-10-15 2007-10-15 Ergonomic laptop support frame and table

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU92072B1 (en) * 2012-09-12 2014-03-13 Andre Heyen Multifunction ultraportable stand
WO2014041101A1 (en) * 2012-09-12 2014-03-20 Xheyen Andre Multifunctional ultraportable support
CN106419094A (en) * 2016-09-19 2017-02-22 上海云月塑料有限公司 Portable lazy table and furniture equipped with lazy table
CN111820609A (en) * 2020-09-07 2020-10-27 江西杨梅欣诚实业集团有限公司 Folding desk of placing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU92072B1 (en) * 2012-09-12 2014-03-13 Andre Heyen Multifunction ultraportable stand
WO2014041101A1 (en) * 2012-09-12 2014-03-20 Xheyen Andre Multifunctional ultraportable support
AT14184U1 (en) * 2012-09-12 2015-05-15 André Heyen Versatile, extremely portable mount
BE1021730B1 (en) * 2012-09-12 2016-01-14 Newconcepts S.À.R.L. & Co, S.E.C.S. SUPPORT ULTRAPORTABLE MULTIFUNCTION
US9551459B2 (en) 2012-09-12 2017-01-24 Newconcepts S.À.R.L. & Co, S.E.C.S. Multifunctional ultraportable support
CN106419094A (en) * 2016-09-19 2017-02-22 上海云月塑料有限公司 Portable lazy table and furniture equipped with lazy table
CN111820609A (en) * 2020-09-07 2020-10-27 江西杨梅欣诚实业集团有限公司 Folding desk of placing

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