Overbed table
An overbed table which includes a generally horizontal upper table member, a base configured for resting on a floor surface and a height adjustable support assembly mounted between the table member and the base. A gas spring is provided interiorly of the height adjustable support assembly and includes a cylinder mounted to a lower frame support member of the height adjustable support assembly and an elongate rod mounted to the upper frame support member of the height adjustable support assembly. The gas spring is configured for non-movement of the elongate rod relative to the cylinder when in a locked condition and for movement of the elongate rod relative to the cylinder only when in an unlocked condition. A lock release mechanism is provided on the elongate rod adjacent a distal end thereof. A shroud member encloses the upper and lower frame support members and is fastened to the table member and includes thereon a manually manipulatable handle movable between first and second positions, the handle including a link interconnecting the handle and the lock release mechanism. The base is of a U shape and has a low height profile on the legs thereof.
This invention relates to an overbed table and, more particularly, to an overbed table having a low height profile base and a handle slidably mounted on a shroud enclosing the height adjustable support assembly.
BACKGROUND OF THE INVENTIONOverbed table assemblies are known in the art and representative examples of some of them are illustrated in U.S. Pat. Nos. 5,775,234, 6,397,761 and 6,484,648. As hospital beds become more complex, overbed tables used in association therewith often encounter obstructions on the understructure of the bed that prevents the base from moving under the bed to enable the table top to be oriented over the top of the mattress and generally the lap of the onboard patient. In addition, efforts to integrate the aesthetic appearance of the overbed table with the remaining furniture within a hospital setting has been less than acceptable.
Accordingly, it is an object of this invention to provide an overbed table assembly which has a low height profile base enabling it to easily move to positions beneath a hospital bed and to avoid objections on the bed due to the low profile configuration.
It is a further object of the invention to provide an overbed table assembly, as aforesaid, wherein a shroud encloses the height adjustable support assembly extending between the table top and the base to enhance the aesthetic appearance of the region of the overbed table assembly whereat the height adjustable support assembly is located.
It is a further object of the invention to provide an overbed table assembly, as aforesaid, wherein the handle is slidably mounted on the shroud with minimal space existing through which the interior of the operating mechanisms for raising and lowering the table top are visible.
It is a further object of the invention to provide an overbed table assembly, as aforesaid, wherein the base is composed of two components, one on top of the other with each thereof being configured to operatively cooperate with the other to enhance the strength of the low height profile and to prevent flexing thereof.
SUMMARY OF THE INVENTIONThe objects and purposes of the invention are met by providing an overbed table which includes a generally horizontal upper table member, a base configured for resting on a floor surface and a height adjustable support assembly mounted between the table member and the base. A gas spring is provided interiorly of the height adjustable support assembly and includes a cylinder mounted to a lower frame support member of the height adjustable support assembly and an elongate rod mounted to the upper frame support member of the height adjustable support assembly. The gas spring is provided for biasing the upper frame support member upwardly with respect to the lower frame support member and additionally is configured so that the elongate rod cannot move downwardly relative to the cylinder when in a locked condition and for free movement of the elongate rod up or down relative to the cylinder only when in an unlocked condition. A lock release mechanism is provided on the elongate rod adjacent a distal end thereof. A shroud member encloses the upper and lower frame support members and is fastened to the table member and includes thereon a manually manipulatable handle movable between first and second positions, the handle including a link interconnecting the handle and the lock release mechanism. The base is of a U shape and has a low height profile on the legs thereof.
BRIEF DESCRIPTION OF THE DRAWINGSOther objects and purposes of this invention will be apparent to persons acquainted with overbed table assemblies of this general type upon reading the following specification and inspecting the accompanying drawings, in which:
Certain terminology will be used in the following description for convenience in reference only and will not be limiting. The words “up”, “down”, “right” and “left” will designate directions in the drawings to which reference is made. The words “in” and “out” will refer to directions toward and away from, respectively, the geometric center of the device and designated parts thereof. Such terminology will include derivatives and words of similar import.
An overbed table assembly 20 embodying the invention is illustrated in
Referring to
The bottom wall 38 of the bight section 29 has a plurality of holes 41 therethrough and in the central region thereof. These holes 41 are also shown in
The U-shaped cover member 28 is of a unitary synthetic resin construction having a bight section 47 and two generally parallel legs 48 and 49 extending away therefrom. The entire U-shaped cover member 28 has an inverted U-shaped cross section throughout defined by a top wall 51 and sidewalls 52 which depend downwardly therefrom. A plurality of webs 53 unitarily interconnect the undersides of the top wall 51 and each of the respective sidewalls 52 as illustrated in
The underside of the top wall 51 of the U-shaped cover member 28 includes plural integral hollow post-like members 56 (
The U-shaped cover member 28 has in the bight section 47 a plurality of holes 58 therethrough that are configured to align with each of the respective spacer sleeves 43 and as depicted in
A hollow post 63 (
As shown in
A gas spring 88 is mounted internally of the tube 81 as depicted in
A head piece 94 is mounted to the interior of the tube 81 by a pin 96 and adjacent the upper end. The head piece includes a socket 97 into which is received the distal end of the elongate rod 91. A laterally extending opening 95 extends through the head piece 94 and intersects the bottom end of the socket 97 to orient the valve actuator member 93 within the opening 95. A two arm link member 99 is pivotally supported adjacent a mid-point between the two arms as at fulcrum 101 in the opening 95 with the end of one arm operatively engaging the valve actuator member 93 to facilitate reciprocative operation thereof in response to a pivoting of the link 99. The other arm of the two arm link 99 extends through the opening 98 in the wall of the tube 81. The two arms form an obtuse angle of 155° to 165°, the preferred angle being 159°. In the alternative, the link 99 could be Z-shaped and a theoretical line intersecting the distal end of each horizontally extending arm thereof would form an angle relative to the longitudinal axis of the cylinder housing 89, namely, the angle being 15° to 25°, the preferred angle being 21°.
A shroud 102 (
An opening 105 is formed in the wall of the shroud 102 adjacent the upper end thereof as depicted in
As is illustrated in
As has been noted above, the top to bottom dimension of the legs of the U-shaped base 21 is small. The top to bottom dimension of the respective legs is deemed to be particularly unique. In this particular embodiment, the spacing between the floor and the bottom wall 38 of the U-shaped profile member 27 is generally within the range of 35% to 50% of a top to bottom dimension of a combination of an assembly of the U-shaped hollow profile member 27 and the U-shaped cover member 28 in a region adjacent the distal end of each leg of the base, particularly adjacent each leg oriented wheel 22. It is preferable that the aforementioned range of 35% to 50% be maintained from the distal ends of the legs of the base to at least half of a length of the base. The preferred embodiment includes the range being 40% to 45%. Furthermore, due to the strength characteristic of the combination of the construction of the U-shaped hollow profile member 27 and the U-shaped cover member 28, the top to floor surface of an assembly of the hollow profile member 27 and the cover member 28 in a region adjacent each leg wheel is within a range of 25% to 35% greater than a diameter of the leg wheel. In this particular embodiment, the diameter of all of the wheels on the base, including the leg wheels is less than two inches, a preferable diameter being 1.46 inches and the dimension between the top surface of the cover 28 and the floor surface is 2.1 inches. Such wheels are available under Model No. TUK229-24X1B, available from Gross Stabil in Germany.
Although a particular preferred embodiment of the invention has been disclosed in detail for illustrative purposes, it will be recognized that variations or modifications of the disclosed apparatus, including the rearrangement of parts, lie within the scope of the present invention.
Claims
1. An overbed table, comprising:
- a generally horizontal upper table member having an upwardly facing surface thereon;
- a base configured for resting on a floor surface;
- a height adjustable support assembly mounted between said table member and said base and comprising an upper frame support member having a hollow interior and one end attached to said table member, a lower frame support member having a hollow interior and one end attached to said base, said upper and lower frame support members being vertically slidable with respect to each other and one within the other;
- a gas spring having a cylinder mounted to said lower frame support member and an elongate rod mounted to said upper frame support member and configured for reciprocation with respect to said cylinder for biasing said upper frame support member upwardly with respect to said lower frame support member and additionally configured for non-movement of said elongate rod in a downward direction relative to said cylinder when in a locked condition and for free up or down movement of said elongate rod relative to said cylinder only when in an unlocked condition, said cylinder and said elongate rod being oriented inside said hollow interiors of said upper and lower frame support members, said elongate rod having thereon a lock release mechanism adjacent a distal end thereof configured to effect an unlocking of said elongate rod to facilitate movement thereof relative to said cylinder;
- a shroud member separate from said upper and lower frame support members fastened to said table member and enshrouding said upper and lower frame support members; and
- a manually manipulative handle mounted on said shroud for movement between first and second positions, said handle including a link interconnecting said handle and said lock release mechanism, said first position corresponding to said locked condition and said second position corresponding to said unlocked condition.
2. The overbed table according to claim 1, wherein said shroud includes an elongate guide, said handle being supported on said guide and for movement thereon between first and second positions.
3. The overbed table according to claim 2, wherein said handle includes a body, said body having guide tracks thereon operatively engaging said elongate guide on said shroud, said body further having a finger receiving cavity therein located intermediate said guide tracks and opening outwardly of said shroud.
4. The overbed table according to claim 3, wherein said finger receiving cavity has a pair of laterally spaced sidewalls, an upper wall, a lower wall and a back wall connected to each of said sidewalls, said upper wall and said lower wall, said upper wall being configured to conform to individual ones of respective fingers of an operator.
5. The overbed table according to claim 2, wherein said shroud is made of a generally uniformly thick material and has an opening through a section thereof, opposing edges of said opening defining said elongate guide, said handle including a generally U-shaped track on opposite sides thereof slidably receiving in each thereof said elongate guide.
6. The overbed table according to claim 1, wherein said link is movably supported at one end on a distal end of said elongate rod and terminates at an opposite end in a contact surface engaging said handle, so that movement of said handle from said first position to said second position will effect a movement of said link to change the condition of said cylinder from locked to unlocked.
7. The overbed table according to claim 1, wherein said base is U-shaped and includes a U-shaped hollow profile having a top wall, sidewalls and a bottom wall as well as a U-shaped cover member fixedly secured to said hollow profile and having a top wall and sidewalls depending from edges of said top wall to cover said top wall and said sidewalls of said hollow profile, said cover member including plural internal webs interconnecting said top wall and said sidewalls thereof, selected ones of said webs having a notch provided therein to receive said hollow profile, at least one edge of said notch resting on said top wall of said hollow profile.
8. The overbed table according to claim 7, wherein said cover member is fixedly secured to said hollow profile at least at plural spaced locations along each leg of said cover member and said hollow profile so that any tendency of said legs to flex will apply a compressive force to said cover member thereby resisting the tendency of said legs of said hollow profile to flex.
9. The overbed table according to claim 7, wherein said base is movably supported on plural wheels, at least one leg wheel at a distal end of each leg of said U-shaped base, a top to bottom dimension of a combination of an assembly of said hollow profile and cover member in a region adjacent each leg wheel being less than a diameter of said leg wheel.
10. The overbed table according to claim 9, wherein said top to bottom dimension is maintained from said distal ends of said legs of said base to about half of a length of said base.
11. The overbed table according to claim 7, wherein said base is movably supported on plural wheels, at least one leg wheel at a distal end of each leg of said U-shaped base, a top to floor surface of an assembly of said hollow profile and cover member in a region adjacent each leg wheel being within a range of 25% to 35% greater than a diameter of said leg wheel.
12. The overbed table according to claim 11, wherein said top to floor surface dimension is maintained from said distal ends of said legs of said base to about half of a length of said base.
13. The overbed table according to claim 11, wherein said range is 29% to 31%.
14. The overbed table according to claim 13, wherein said top to floor surface dimension is maintained from said distal ends of said legs of said base to about half of a length of said base.
15. The overbed table according to claim 7, wherein said base is movably supported on plural wheels, at least one leg wheel at a distal end of each leg of said U-shaped base, a distance between a floor surface on which said plural wheels rest and an underside of said base is generally within range of 35% to 50% of a top to bottom dimension of a combination of an assembly of said hollow profile and cover member in a region adjacent each leg wheel.
16. The overbed table according to claim 15, wherein said distance between the floor surface and said underside of said base is maintained from said distal ends of said legs of said base to at least half of a length of said base.
17. The overbed table according to claim 15, wherein said range is 40% to 45%.
18. The overbed table according to claim 17, wherein said distance between the floor surface and said underside of said base is maintained from said distal ends of said legs of said base to at least half of a length of said base.
19. The overbed table according to claim 7, wherein said sidewalls of said U-shaped hollow profile have at edges thereof remote from the top wall notches at spaced intervals along the length of the sidewalls, said bottom wall of said U-shaped hollow profile having tabs configured to be received into the respective notches, said bottom wall and said tabs thereon being weldably secured to the edges of said sidewalls remote from said top wall.
20. An overbed table, comprising:
- a generally horizontal upper table member having an upwardly facing surface thereon;
- a base configured for resting on a floor surface;
- a height adjustable support assembly mounted between said table member and said base;
- wherein said base has a U-shaped configuration with said height adjustable support assembly being mounted on a bight section of the base; and wherein said base is movably supported on plural wheels, at least one leg wheel at a distal end of each leg of said U-shaped base, a distance between a floor surface on which said plural wheels rest and an underside of said base being generally within the range of 35% to 50% of a top to bottom dimension of said base in a region adjacent each leg wheel.
21. The overbed table according to claim 20, wherein said U-shaped base includes a U-shaped hollow profile having a top wall, sidewalls and a bottom wall as well as U-shaped cover member fixedly secured to said hollow profile and having a top wall and sidewalls depending from edges of said top wall to cover said top wall and said sidewalls of said hollow profile, said cover member including plural internal webs interconnecting said top wall and said sidewalls thereof, selected ones of said webs having a notch provided therein to receive said hollow profile, at least one edge of said notch resting on said top wall of said hollow profile.
22. The overbed table according to claim 21, wherein said cover member is fixedly secured to said hollow profile at least at plural spaced locations along each leg of said cover member and said hollow profile so that any tendency of said legs to flex will apply a compressive force to said cover member thereby resisting the tendency of said legs of said hollow profile to flex.
23. The overbed table according to claim 20, wherein an outer diameter of at least said leg wheels is equal to or less than two inches.
24. The overbed table according to claim 23, wherein an outer diameter of at least said leg wheels is equal to 1.46 inches.
25. An overbed table, comprising:
- a generally horizontal upper table member having an upwardly facing surface thereon;
- a base configured for resting on a floor surface;
- a height adjustable support assembly mounted between said table member and said base;
- wherein said base has a U-shaped configuration with said height adjustable support assembly being mounted on a bight section of the base; and
- wherein said height adjustable support assembly comprises an upper frame support member having a hollow interior and one end attached to said table member, a unitary lower frame support member having first and second hollow profiles one inside the other which are attached at one end to said base, said first and second profiles being interconnected by plural webs, said upper frame support member being vertically slidably supported inside said hollow interior of said inside hollow profile.
26. The overbed table according to claim 25, wherein said upper and lower frame support members are elliptical in cross section, a plane containing a major axis of the ellipse extending perpendicular to a vertical plane containing a longitudinal axis of a leg of said U-shaped base.
Type: Application
Filed: Dec 18, 2003
Publication Date: Jun 23, 2005
Inventors: Dennis Lahmann (Kalamazoo, MI), Thomas LaCroix (Kalamazoo, MI), James Medsker (Lawton, MI), John Shimer (Three Rivers, MI), Ben Marvin (Constantine, MI)
Application Number: 10/739,640