US20170251804A1 - Radial-scissor lift table and method - Google Patents
Radial-scissor lift table and method Download PDFInfo
- Publication number
- US20170251804A1 US20170251804A1 US14/998,932 US201614998932A US2017251804A1 US 20170251804 A1 US20170251804 A1 US 20170251804A1 US 201614998932 A US201614998932 A US 201614998932A US 2017251804 A1 US2017251804 A1 US 2017251804A1
- Authority
- US
- United States
- Prior art keywords
- scissor
- support member
- radial
- assembly
- floor
- 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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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
- A47B9/16—Tables with tops of variable height with means for, or adapted for, inclining the legs of the table for varying the height of the top, e.g. with adjustable cross legs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B13/00—Details of tables or desks
- A47B13/02—Underframes
- A47B13/023—Underframes with a central column
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B13/00—Details of tables or desks
- A47B13/08—Table tops; Rims therefor
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
- A47B9/04—Tables with tops of variable height with vertical spindle
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/005—Leg adjustment
Abstract
A radial-scissor lift assembly for a table top comprising an upper support member, a lower support member, and at least three scissor assemblies coupled to the upper and lower support members. Each scissor assembly includes a table-scissor member rotatably supporting a table wheel adapted for contacting an unattached table. Each scissor assembly further includes a floor-scissor member rotatably supporting a floor wheel adapted for contacting a surface supporting the radial-scissor lift assembly. The radial-scissor lift assembly has an actuator assembly coupled to the lower support member and to the upper support member for moving the scissor assemblies. A method for lowering a table top comprising disposing a table top on at least three table rollers, and rolling the table rollers along the bottom on the table top and away from the center of the table top to cause the table top to be lowered.
Description
- The present invention broadly relates in general to a table and method. More specifically, embodiments of the present invention provide a radial-scissor lift table having a movable top. More specifically further, embodiments of the present invention relate to a method for moving an unattached table top with scissor lift assemblies that are coupled to an actuator assembly which provides the requisite dynamic forces for elevating and lowering the unattached table top relative to a surface that supports the scissor lift assemblies, such as a floor.
- A table with movable or adjustable height table top employs a mechanism to raise or lower the table top, which is ideal for compact homes, office work stations, dining and leisure activities in accordance with a modern lifestyle. An adjustable height table offers solutions in today's smaller homes, and relaxed office environments. Table height adjustment is ideal for creating a comfortable working height for a variety of work projects, human body dimensions, medical handicaps, chair heights, sofa dimension, and personal comfort preferences for the users.
- A mechanism capable of adjusting from a low Coffee Table height of 14 inches, to a conventional Dining Table height of 29 inches, is required to cover the full range of positions desired by the user. In order to elevate a movable table top to these heights, the lift assembly would be required to more than double its initial height. This is difficult to accomplish with a telescoping design, because telescopes have inherent limits of motion. A single telescope mechanism is unable to double its initial length. Multiple telescopes would be necessary to provide motion from 14″ to 29″. This would create a design having numerous overlapping components for both the frame of the machine, and the actuator. Alternatively, a scissor lift mechanism is capable of adjusting beyond this range of motion. Conventional industrial scissor lifting mechanisms are available, but require complicated coupling brackets to confine the travelling table-top surface to a coaxial position with a vertical axis. Drill holes in the table surface, to mount tracks, links or brackets to the surface are undesirable, especially if the table is made of glass or stone. Furthermore, fasteners that penetrate the table top, damage the top working surface, and reduce the usefulness of the table
- Thus, what is needed, and what has been invented, is a table having an unattached top, not requiring multiple tracks, fasteners, or any other centering devices, to lock the table top to the frame of the lifting assembly. What is further needed and what has been invented is a stable and dependable method for lowering and elevating table tops.
- Embodiments of the present invention provide a scissor lift assembly for raising and lowering an unattached table top. The scissor lift assembly has at least (3) scissor mechanisms mounted in a polar array. The assembly has lower and upper support members; each having at least three radially disposed protruding lugs. The scissor lift assembly also has at least three scissor assemblies coupled to the upper and lower support members in a polar array. Each scissor assembly comprises a table-scissor member having a lower end pivotally connected to one of the lugs of the lower support member and an upper end which supports a rotatable table wheel. Each scissor assembly further comprises a floor-scissor member pivotally connected to the table scissor member and having an upper end pivotally connected to one of the lugs of the upper support member and a lower end which supports a rotatable floor wheel. An actuator assembly is coupled to the lower and upper support members for moving the scissor assemblies. The rotatable table wheels of the table-scissor members support an unattached table top.
- Embodiments of the present invention provide further a method for raising a table top. A table top is disposed on at least three table rollers which are coupled to a support member. The table top remains unattached to the table rollers. When the support member is moved towards the unattached table, the table rollers roll along the bottom of the unattached table and raise the table top.
- These provisions, together with the various ancillary provisions and features which will become apparent to those skilled in the art as the following description proceeds, are attained by the apparatuses and methods of the present invention, preferred embodiments thereof being shown with reference to the accompanying drawings, by way of example only, wherein:
-
FIG. 1 is a perspective view of an embodiment of the radial-scissor lift assembly for an unattached table top. -
FIG. 2 is a perspective view of another embodiment of the radial-scissor lift assembly for an unattached table top. -
FIG. 3 is a partial vertical sectional view of an embodiment of a radial-scissor lift assembly having an actuator assembly which has positioned an unattached table in a lower position; -
FIG. 4 is a partial vertical sectional view of an embodiment of a radial-scissor lift assembly having an actuator assembly which has positioned an unattached table in an elevated position; -
FIG. 5 is a partial vertical sectional view of the tubular nut member threadably engaged to the threaded motor shaft which is rotated by the motor for operating the scissor lift assemblies to raise or lower an unattached table. -
FIG. 6 is a top plan view of an unattached transparent (e.g. glass) table top supported by rotatable table wheels of table-scissor members of the radial-scissor lift assembly; -
FIG. 7 is a sectional view taken in direction of the arrows 7-7 inFIG. 6 of the radial-scissor lift assembly supporting an unattached transparent table top in a lowered position. -
FIG. 8 is a top plan view of an unattached transparent (e.g. glass) table top supported by rotatable table wheels mounted to the table-scissor members of the radial-scissor lift assembly with arrows pointing in the direction of travel for raising the unattached table top into an elevated position. -
FIG. 9 is a side elevational view of the table assembly ofFIG. 8 with horizontal arrows indicating the direction of travel of the rotatable table wheel members and the rotatable floor wheel members, and the vertical arrow indicating the direction of travel for the unattached table top, when the table assembly is to be placed in an elevated position by the actuator assembly. -
FIG. 10 is a top plan view of an unattached transparent (e.g. glass) table top supported by the radial-scissor lift assembly in an elevated position. -
FIG. 11 is a sectional view taken in direction of the arrows 11-11 inFIG. 10 of the radial-scissor lift assembly supporting the unattached transparent table top in an elevated position. -
FIG. 12 is a top plan view of an unattached transparent (e.g. glass) table top supported by rotatable table wheels mounted to the table-scissor members of the radial-scissor lift assembly with arrows pointing in the direction of travel for lowering the unattached table top into a lowered position. -
FIG. 13 is a side elevational view of the table assembly ofFIG. 12 with horizontal arrows indicating the direction of travel of the rotatable table wheel members and the rotatable floor wheel members, and the vertical arrow indicating the direction of travel for the unattached table top, when the table assembly is to be placed in a lowered position by the actuator assembly. - In the description herein for embodiments of the present invention, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the present invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.
- Referring in detail now to the drawings, there is seen in
FIGS. 1 and 2 embodiments of a scissor-lift assembly, generally illustrated as 10, for elevating and lowering an unattached table top 8 (seeFIGS. 10 and 11 ). Theunattached table top 8 may possess any geometric shape (e.g., square or circular) and may be made of any material (e.g., wood, metal or glass). For purposes of explaining the present invention, thetable top 8 is transparent (e.g. glass) and possesses a circular shape. The combination of the scissor-lift assembly 10 and theunattached table top 8 forms a table 6, as shown inFIGS. 9 and 11 . - In the embodiments of
FIGS. 1 and 2 , the scissor-lift assembly 10 respectively has three (3) and four (4) scissor assemblies, each generally illustrated as 14. It is to be understood that the scissor-lift assembly 10 may have any number ofscissor assemblies 14. However, preferably at least three (3)scissor assemblies 14 are employed so the table 6 is stable. - The scissor-
lift assembly 10 also comprises anupper support member 18 and alower support member 22. The upper andlower support members lugs support members scissor assemblies 14 to be employed. For the embodiment of the scissor-lift assembly 10 inFIG. 1 , because three scissor assemblies 14 (each more specifically identified as 14 a, 14 b and 14 c) are used,upper support member 18 has three lugs 26 (each more specifically identified aslugs lower support member 22 likewise has threelugs 30, each more specifically identified aslugs FIG. 1 , thescissor assemblies lower support members scissor assemblies scissor assemblies scissor assemblies scissor assemblies - The embodiment of the scissor-
lift assembly 10 inFIG. 2 uses fourscissor assemblies 14, each more specifically identified as 14 a, 14 b, 14 c and 14 d. Thus,upper support member 18 is formed with four lugs 26 (each more specifically identified aslugs lower support member 22 likewise has fourlugs 30, each more specifically identified aslugs FIG. 2 , thescissor assemblies lower support members scissor assemblies FIG. 1 , the radially extensions and dispositions of thescissor assemblies FIG. 2 are also equiangular. More specifically, the angles betweenscissor assemblies scissor assemblies scissor assemblies 14 c, 14 d, and betweenscissor assemblies 14 d, 14 a are essentially equal. - The scissor-
lift assembly 10 further comprises an actuator assembly, generally illustrated as 36, which is coupled to the upper andlower support members actuator assembly 36 for purposes of embodiments of the present invention may be any suitable mechanism or system that is capable of moving (e.g., raising and lowing) or controlling the movement ofunattached table top 8. - Typically, actuator assemblies are operated by a control system that transforms circular or rotary motion into linear motion. The transformation may be any suitable converting mechanisms, such as electrical, mechanical (e.g. rack and pinion), hydraulic or pneumatic, or any other type of converting system. Activation of the control system may be by any suitable means, such as by remote control of the type which remotely turns on or off a television or other electronic device.
- As known to those possessing ordinary skill in the art, a hydraulic actuator consists of a cylinder or fluid motor that uses hydraulic power to facilitate mechanical operation whose output may be linear, rotary or oscillatory motion. A pneumatic actuator converts energy formed by vacuum or compressed air at high pressure into either linear or rotary motion. Motors are commonly employed when circular or rotary motions are needed for transformation into a linear motion.
- For purposes of describing the present invention, the
actuator assembly 36 includes a mechanism which generates a linear motion from a circular motion created by a conventionalelectric motor 40 that receives power through a cord 42 (seeFIG. 1 ). However, theactuator assembly 36 is not to be limited to such an actuator assembly. The spirit and scope of the present invention is to include any type of actuator assembly which is capable of raising or loweringunattached table top 8. - The
motor 40 is supported by the lower support member 22 (seeFIG. 3 by way of example) and includes astator 44 and arotor 48. A threadedshaft 52 is coupled to themotor 40 and rotates when themotor 40 is energized. Bearings 41-41 are conveniently positioned as best shown inFIGS. 3 and 4 . The threadedshaft 52 hasthreads 56 that mesh withthreads 60 of a nut member 64 (seeFIG. 5 ) which connects or is bound to terminal end 57 (seeFIG. 4 ) of aconduit 68 which houses the threadedshaft 52 as it linearly moves,Conduit 68 andnut member 64 form a tubular nut assembly. -
Conduit 68 also has aterminal end 72 which is stationarly affixed to theupper support member 18 Whenmotor 40 rotates treadedshaft 52 clockwise in direction of arrow D (seeFIG. 5 ),shaft 52 commences to linearly move in direction of the arrow A, causing theconduit 68 to begin linearly accepting theshaft 52 as it linearly travels internally withinconduit 68 in direction of the arrow B. As threadedshaft 52 linearly moves in direction of the arrow A, themotor 40 appended to and associated with theshaft 52 linearly moves with theshaft 52, causing thelower support member 22 attached to themotor 40 to follow themotor 40 towardsnut member 64. - Simultaneously with clockwise rotation of threaded
shaft 52, and the linear movement of theshaft 52 in direction of the arrow B withinconduit 68, there is a secondary dynamicforce moving conduit 68 in direction of the arrow C (seeFIG. 5 ) and towardsmotor 40. Any friction or resistance in movement of themotor 40 towardsnut member 64 would cause thenut member 64, along with theconduit 68 andupper support member 18 secured to theterminal end 72 of theconduit 68, to travel in direction of the arrow C inFIG. 5 . In theevent motor 40 and thelower support member 22 coupled to themotor 40, remained stationary,nut member 64 and conduit 68 (and attached upper support member 18) would solely move in direction of arrow C inFIG. 5 asshaft 52 rotates. Typically,motor 40 andlower support member 22, do not remain stationary. Thus, rotatingshaft 52 causes a dual dynamic force; one forcing themotor 40 andlower support member 22 to move in direction of the arrow A (seeFIG. 5 ); the other forcing thenut member 64, theconduit 68 connected to thenut member 64, and theupper support member 18 coupled to theconduit 68, to move in direction of the arrow C. Thus, upper andlower support members rotating shaft 52, produces dual dynamic forces. As will be further explained hereafter, rotation ofshaft 52 clockwise (in direction of the arrow D) by themotor 40 causes the scissor-lift assembly 10 to be placed in the collapsed or lowered position illustrated inFIGS. 7 and 9 , which concomitantly postures the unattached table 8 in a lowered position. - As will also be further explained hereafter, reversing the entire foregoing procedure would cause the scissor-
lift assembly 10 to be positioned in an expanded or elevated state, as illustrated inFIG. 11 . More specifically, reversing the procedure entails inter alia causingmotor 40 to rotateshaft 52 counter-clockwise (i.e., in direction of arrow E inFIG. 5 ). This causesshaft 52 to linearly move in direction of the arrow F, andconduit 68 to move oppositely; that is, in direction of arrow G (seeFIG. 5 again). Movement of theshaft 52 andconduit 68 accordingly, results in upper andlower support members lift assembly 10 to be eventually disposed in an elevated position, such as that shown inFIGS. 11 and 12 . This places unattached table 8 in an elevated or raised position as also shown inFIGS. 11 and 12 . It is to be understood that the present invention is not to restrict or limit the placement of unattached table 8 in only two positions, i.e., the positions shown inFIGS. 9 and 11 . By controlling the operation of themotor 40, unattached table 8 may be postured in any position between the lowermost shown inFIG. 9 and the uppermost shown inFIG. 11 . - As shown in
FIG. 1 ,scissor assemblies scissor members scissor members scissor members support table wheels upper extremities Points scissor members scissor members scissor members points FIGS. 3, 4 and 7 ,table wheels unattached table top 8. -
Lower extremities scissor members lower support member 22 at pivot points 338, 342 and 346.Upper extremities scissor members FIGS. 3, 4 and 7 , floor-scissor members support floor wheels lower extremities Floor wheels floor 168 for supporting the table 6. - Referring now to
FIG. 2 , in addition to the scissor assemblies of 14 a, 14 b and 14 c, there is seen scissor assembly 14 d having table-scissor member 200 and floor-scissor member 204. Table-scissor member 200 rotatably supportstable wheel 208 atupper extremity 212. The pivot point where table-scissor member 200 pivots against floor-scissor member 204 for moving table-scissor member 200 and floor-scissor member 204 relative to each other in a scissor-like fashion is not shown. As shown inFIGS. 3 and 4 ,table wheel 208 supportsunattached table top 8. Lower extremity 220 of table-scissor member 200 couples to lug 30 d at pivot point 280 and the upper extremity 240 of floor-scissor member 204 couples to lug 26 d at pivot point 288. The lower extremity 250 of floor-scissor member 204 rotatably supports floor wheel 254 which rolls on thefloor 168 for supporting the table 6. - Referring now to the drawings for operation of the
scissor lift assembly 10 of the present invention, the threewheel scissor assemblies wheel scissor assemblies wheel scissor assemblies wheel scissor assemblies - There is seen in
FIGS. 3 and 7 scissor-lift assembly 10 in the lowered position, supporting unattached table 8 ontable wheels FIG. 11 ,motor 40 is turned on and then activated, causingtreaded shaft 52 to commence rotating counter-clockwise in direction of arrow E (seeFIG. 5 ). Asshaft 52 rotates counter-clockwise, it begins to move in the linear direction represented by arrow F inFIG. 5 , withdrawing from withinconduit 68 and causingmotor 40, and thelower support member 22 attached to themotor 40, to travel away fromconduit 68 and theupper support member 18 secured toconduit 68. Asconduit 68 and theupper support member 18 move away frommotor 40 and thelower support member 22, thescissor assemblies table wheels floor wheels FIG. 9 ). - When
scissor assemblies scissor members table wheels scissor members floor wheels lower extremities scissor members lugs lower support member 22 at pivot points 338, 342 and 346; andupper extremities scissor member members lugs scissor assemblies table rollers actuator assembly 36, and unattached table 8 is moving upwardly in direction of the arrow K. In a further preferred embodiment of the invention, astable wheels floor wheels arrows FIGS. 3 andFIG. 4 . Movements continue until unattached table 8 reaches the elevated position illustrated inFIGS. 11 and 12 .Motor 40 then automatically turns off and deactivated, ormotor 40 may be manually turned off. - Continuing to refer to the drawings for reversing the procedure to lower the unattached table 8 from the elevated position illustrated in
FIG. 11 to the collapsed or lowered position illustrated inFIG. 7 ,motor 40 is turned on and then activated to causetreaded shaft 52 to commence rotating clockwise in direction of arrow D (seeFIG. 5 ). Asshaft 52 rotates clockwise, it begins to move in the linear direction represented by arrow F inFIG. 5 , gradually enteringconduit 68 and causingmotor 40, and thelower support member 22 attached to themotor 40, to travel towards thelower support member 22 supportingmotor 40. Asconduit 68 and theupper support member 18 towardsmotor 40 and thelower support member 22, thescissor assemblies table wheels floor wheels FIG. 12 ). - When
scissor assemblies scissor members table wheels scissor members floor wheels lower extremities scissor members lugs lower support member 22 at pivot points 338, 342 and 346; andupper extremities scissor members lugs scissor assemblies table rollers actuator assembly 36, and unattached table 8 is moving downwardly in direction of the arrow R. In a preferred embodiment of the invention, astable wheels floor wheels arrows FIG. 3 andFIG. 4 . Movements continue until unattached table 8 reaches the lowered position illustrated inFIGS. 9 and 9 .Motor 40 then either automatically (or is manually) turned off. - Reference throughout this specification to “one embodiment”, “an embodiment”, or “a specific embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention and not necessarily in all embodiments. Thus, respective appearances of the phrases “in one embodiment”, “in an embodiment”, or “in a specific embodiment” in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner with one or more other embodiments. It is to be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the present invention.
- Additionally, any directional arrows in the drawings/Figures should be considered only as exemplary, and not limiting, unless otherwise specifically noted. Furthermore, the term “or” as used herein is generally intended to mean “and/or” unless otherwise indicated. Combinations of components or steps will also be considered as being noted, where terminology is foreseen as rendering the ability to separate or combine is unclear.
- As used in the description herein and throughout the claims that follow, “a”, “an”, and “the” includes plural references unless the context clearly dictates otherwise. Also, as used in the description herein and throughout the claims that follow, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
- The foregoing description of illustrated embodiments of the present invention, including what is described in the Abstract, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.
- Thus, while the present invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of embodiments of the invention will be employed without a corresponding use of other features without departing from the scope and spirit of the invention as set forth. Therefore, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims.
Claims (19)
1. A radial-scissor lift assembly for a table top comprising:
an upper support member;
a lower support member;
a table top having a bottom;
at least three scissor assemblies coupled to the upper and lower support members;
an actuator assembly coupled to the lower support member and to the upper support member for moving the scissor assemblies;
each scissor assembly including a table-scissor member rotatably supporting a table wheel, each said table wheel contacts the bottom of the table top for supporting the table top and for radially moving on the bottom of the table top towards or away from the upper support member; and
each scissor assembly further including a floor-scissor member rotatably supporting a floor wheel, each said floor wheel contacts a surface supporting the radial-scissor lift assembly and is adapted for radially moving on the surface towards or away from the lower support member.
2. The radial-scissor lift assembly of claim 1 wherein said table top is disposed on said table wheels and remain continually spaced from the upper support member when the actuator assembly moves the table wheels and floor wheels relative to each other.
3. The radial-scissor lift assembly of claim 1 wherein the upper support member and the lower support member are vertically aligned; said upper support member comprises a structure defining at least three upper protruding lugs, and the lower support member comprises a structure defining at least three lower protruding lugs, and said three scissor assemblies are pivotally coupled to the upper lugs and to the lower lugs.
4. The radial-scissor lift assembly of claim 1 wherein said three scissor assemblies comprises a first scissor assembly, a second scissor assembly and a third assembly, and the angle between the first and second assemblies, and the angle between the second and third assemblies, and the angle between the third and first table assemblies are essentially equal.
5. (canceled)
6. The radial-scissor lift assembly of claim 1 herein the table scissor member is pivotally connected to the floor-scissor member.
7. The radial-scissor lift assembly of claim 3 wherein said table scissor members are pivotally connected the lower protruding lugs, and said floor scissor members are pivotally connected to the upper protruding lugs.
8. The radial-scissor lift assembly of claim 1 wherein said actuator assembly moves the lower support member away from or toward the upper support member.
9. (canceled)
10. (canceled)
11. (canceled)
12. The radial-scissor lift assembly of claim 1 additionally comprising a conduit member affixed to the upper support member and includes an internal cylindrical surface.
13. The radial-scissor lift assembly of claim 12 wherein said actuator assembly comprises a shaft that engages the internal cylindrical surface of the conduit member and is adapted for moving linearly therein.
14. The radial-scissor lift assembly of claim 8 additionally comprising a conduit member affixed to the upper support member and includes an internal cylindrical surface.
15. The radial-scissor lift assembly of claim 14 wherein said actuator assembly comprises a shaft that engages the internal cylindrical surface of the conduit member and is adapted for moving linearly therein, and movement of the upper and lower support members towards each other is caused by clockwise rotation of the shaft.
16. The radial-scissor lift assembly of claim 1 wherein each table wheel includes a table-wheel hub, each floor wheel includes a floor-wheel hub, and said table-wheel hubs and floor-wheel hubs are vertically aligned and remain vertically aligned as said table wheels and floor wheels radially move.
17. (canceled)
18. (canceled)
19. (canceled)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/998,932 US20170251804A1 (en) | 2016-03-07 | 2016-03-07 | Radial-scissor lift table and method |
US15/731,746 US9961989B2 (en) | 2016-03-07 | 2017-07-27 | Radial scissor lift table and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/998,932 US20170251804A1 (en) | 2016-03-07 | 2016-03-07 | Radial-scissor lift table and method |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US15/731,746 Continuation-In-Part US9961989B2 (en) | 2016-03-07 | 2017-07-27 | Radial scissor lift table and method |
Publications (1)
Publication Number | Publication Date |
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US20170251804A1 true US20170251804A1 (en) | 2017-09-07 |
Family
ID=59723033
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Application Number | Title | Priority Date | Filing Date |
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US14/998,932 Abandoned US20170251804A1 (en) | 2016-03-07 | 2016-03-07 | Radial-scissor lift table and method |
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US (1) | US20170251804A1 (en) |
-
2016
- 2016-03-07 US US14/998,932 patent/US20170251804A1/en not_active Abandoned
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