US3640520A - Therapy treatment tilt table - Google Patents

Abstract

The invention comprises a therapy treatment table having a platform for receiving a patient and a main frame with the platform pivotally mounted to the top of the main frame, the main frame has four telescoping legs for raising and lowering the frame and platform, a motor for powering the telescoping legs, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform from a vertical position to a horizontal position to facilitate the placement of the patient onto the platform.

Description

United States Patent Wieland et a1.

[ 1 Feb, 8, 1972 [S41 THERAPY TREATMENT TILT TABLE [72] Inventors: Roman G. Wieland; A. John Weber; Clair A. Bearfield; Raymond Cole, all of Valley City, N. Dak.

73 Assignee: m W-G Ine., Valley City, N. Dak.

22 Filed: June 11, 1969 [21 Appl. No; 832,280

[52] 0.8. CI ..269/323, 5/62, 5/63 [51] Int. CL... ..A6lg 13/00 [58] Field of Search ..269/323; 5/62, 63; 108/147 [56] References Cited UNITED STATES PATENTS 1,557,662 10/1925 Crawford ..5/62 2,592,166 4/1952 McLean ..5/63 2,609,768 9/ 1952Cash 108/147 X 2,840,429 6/1958 McDonald. ..269/ 323 3,174,161 3/1965 Black 5/63 UX FOREIGN PATENTS OR APPLICATIONS 352,059 1922 Germany ..269/ 322 OTHER PUBLICATIONS Franklin Tilt Bed (Advertising Circular). 1st page. ReceivlREFPEPJEll/zl 8,

Primary Examiner-William S. Lawson Attorney-Robert E. Kleve [57] ABSTRACT The invention comprises a therapy treatment table having a platform for receiving a patient and a main frame with the platform pivotally mounted to the top of the main frame, the main frame has four telescoping legs for raising and lowering the frame and platform, a motor for powering the telescoping legs, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform from a vertical position to a horizontal position to facilitate the placement of the patient onto the platform.

5 Claims, 8 Drawing Figures PATENTEUFEB 81972 Cifififl. 520

Roman G. Welland A. John Weber Clulr A. Beurfleld 8 Raymond Cole ATTORNEY PATENTEDFEB 8 I972 SHEET 2 OF 3 "YOK INVENTORS Roman G. Wnelond A. John Weber Clair-A. Becrfield 8 Raymond Cole PM I I mm nm THERAPY TREATMENT TILT TABLE This invention relates to therapy treatment devices, more particularly, the invention relates'to therapy treatment devices which are adjustable to various positions.

It is an object of the invention to provide a novel motorized treatment table which may be raised and lowered to a desired height and which may be tilted at an angle.

It is a further object of the invention to provide a novel motorized treatment table which may be raised and lowered and which has a table member for supporting a patient which may be tilted to various angles, with a foldable footrest member thereto.

It is a further object of the invention to provide a novel motorized treatment table which may be adjusted to various positions for easier treatment of a patient.

Further objects and advantages of the invention will become apparent as the description proceeds and when taken in conjunction with the accompanying drawings wherein:

FIG. 1 is a side elevational view of the adjustable motorized treatment table invention. I

FIG. 2 is a front elevational view of the adjustable motorized treatment table invention.

FIG. 3 is a perspective view of the adjustable motorized treatment table invention.

FIG. 4 is an enlarged side elevational view of the adjustable motorized treatment table invention, with portions broken away to reveal the interior construction thereof.

FIG. 5 is a fragmentary side elevational view of the treatment table invention with the bed of the treatment table, illustrated adjusted to a vertical position for loading or unloading a patient.

FIG. 6 is a fragmentary top plan view of the footrest portion of the treatment table invention taken along line 6-6 of FIG. 5.

FIG. 7 is a fragmentary top plan view of the treatment table invention.

FIG. 8 is a cross-sectional view of the treatment table invention taken along line 7-7 of FIG. 4.

Briefly stated, the invention comprises a therapy treatment table invention having a main frame, with a motorized telescoping legs for raising and lowering the frame, a treatment table pivotally mounted to the main frame and adapted to be pivoted about a horizontal axis from a horizontal position to a vertical position for easier unloading of a patient from the table, a motor for powering the pivoted movement of the treatment table. 7

Referring more particularly to the drawings, in FIG. 1, the treatment table invention is illustrated having a treatment table orplatform 21 pivotally mounted to the top of themain frame 22. Themain frame 22 has four telescoping legs, 23, 23', 23" and 23" each telescoping in synchronism with one another either upward or downward.

Theplatform 21 has a rectangularelongated framework 21 with a pair of vertically dependingflanges 24 and 24' fixed on opposite sides of theframework 21 and extended downward. Theupper sleeves 25 of thefront telescoping legs 23 and 23' of the main .framework 22 have projectingflanges 26 and 26 respectively fixed to thesleeves 25 and projecting forwardly. A rod 27 is rotatably mounted inbores 28 in theflanges 26 and 26' and the rod 27 has its outer ends fixed to the dependingflanges 24 and 24' respectively, whereby theplatform 21 may pivot about the axis of the rod 27, relative to themain frame 22.

MAIN TABLE FRAME Themain table frame 22 has anupper framework 29. Theframework 29 has abaseplate 31 with four upright walls extending upward from the outer edges of the baseplate and fixed thereto. A woodenrectangular panel 32 is mounted across the top of theupright walls 30 in fixed relation thereto.

Thetelescoping legs 23, 23' and 23" and 23" of themain frame 22 are identical in construction and operation, each havingupper sleeves 25. Theupper sleeves 25 are fixed to the underside of thebaseplate 31. Each of thelegs 23, 23', 23" and 23" each have a telescoping column orpipe 33 which is slidable insleeve 25 of the legs, and the legs each have arod 34 with atoothed gear 35 fixed axially to the upper end of therod 34. Therod 34 is rotatably mounted in thebaseplate 31 and extends axially down thesleeve 25 andcolumn 33 of each leg. Anannular disc 36 is fixed axially to thecolumn 33 of each leg and therod 34 is threadably received in a threaded center bore in thedisc 36. At the lower end of therod 34 is an annular disc 37 which is fixed to the lower end of therod 34. The disc 37 is slidably mounted in thecolumn 33 and acts to align or guide therod 34.

Anendless link chain 38 travels within theframework 29 around the fourgears 35 ofthe fourlegs 23, 23', 23" and 23" and is driven by atoothed gear 39. Thetoothed gear 39 is fixed axially to the motor shaft 40' of themotor 40. Themotor 40 is fixed to the underside of thebaseplate 31 and its motor shaft 40' passes through an oversized bore in thebaseplate 31 with thetoothed gear 39 fixed axially to the top of the motor shaft 40'.

Four wooden elongated channels each having an identical U-shaped cross section are mounted to thebaseplate 31 to align and to guide theendless chain 38 as it rotates. At the bottom of each of thecolumns 33 of the legs arecastor wheel assemblies 42. The castor wheel assemblies each have anarm 43 with one end 43' fixed to the bottom of thesleeve 33 and extend laterally outward therefrom and curving upward and outward.

A U-bracket 44 is pivotally mounted to theouter end 43"of each flange by means ofpin 44". A castor wheel 45 is rotatably mounted to each U-bracket by apin 46 to rotatably couple themain frame 22. A tie rod 47 connects the castor wheels 45 of thefront legs 23 and 23' together by having its ends placed between theouter ends 43 of the flanges and thetop 44 of the U-bracket, with the pin 44' passing'through theouter end 43 and tie rod and U-bracket to connect them together and yet allow the U-bracket 44 and its castor wheel to rotate about the axis of thepin 44.

Atelescoping column member 48 positioned centrally between theframework 29 and theplatform 41 for raising and lowering the platform 27 about the rod 27. Atriangular plate 49 has its upper end welded to thebaseplate 31. Amotor 50 has anelongated flange 50 fixed thereto, and themotor 50 is pivotally mounted to thetriangular plate 49 by a pin 51 to pivot about the horizontal axis of pin 51. Thetelescoping column member 48 has an inner hollow column or rod 52 andouter sleeve 53. Theouter sleeve 53 of the telescoping column is fixed to the side of themotor 50 so as to pivot with themotor 50 about the axis of pin 51. The hollow column 52 is slidably mounted within thesleeve 53. A threadedrod 54 is rotatably mounted to theend cap 55 of thesleeve 53. Atoothed gear 56 is fixed axially to the outer end of therod 54. Themotor 50 has atoothed gear 57 fixed axially to the outer end of the motor shaft 50' of the motor-50 and anendless link chain 58 travels around thegears 56 and 57 to transmit rotatable power frommotor 50 to therod 54 for rotating therod 54.

The rotation ofrod 54 causes the column 52 to telescope and retract relative to thesleeve 53. Therod 54 is threaded along most of its length and is threadably received in a center bore inannular disc 59. Theannular disc 59 is fixed to the hollow column 52, whereby the rotation of therod 54 in one direction through its threaded engagement with thedisc 59, causes the column '52 to telescope outward relative to thesleeve 53 and the rotation ofrod 54 in the opposite direction causes the column or hollow annular rod 52 to retract into theannular sleeve 53. A second annular disc 59' is slidably mounted in column 52 and fixed to the outer end of therod 54 and acts to keep therod 54 in alignment as sleeve 52 telescopes and retracts.

Thebaseplate 31 and thetop panel 31, each have elongatedslots 91 and 92, respectively to allow thetelescoping member 48 to telescope freely therethrough. The elongated slot9l has a straightforward end 91 and a curvedrearward end 91" and similarly theelongated slot 92 has a straight forward edge or end 92' and curvedrearward edge 92".

PLATFORM Theplatform 21 extends horizontally across the top of the main framework 27. The upper end 52 of the column or pipe 52 of the telescopingmember 48 is pivotally connected to theframe 21 of theplatform 21, by means of anannular pin 55 which passes through abore 56 in the upper end of pipe 52 and the pin and bore 56 may rotate relative to one another. Thepin 55 has an annular center portion 55' with an enlargedannular shoulder 55" and 55" on opposite sides of the rod 52. Thepin 55 is fixed between theshort beams 107 and 107'. Thebeams 107 and 107' are fixed between the twolateral beams 108 and 108'.

The lateral beams 108 and 108' are fixed between the pair ofside beams 109 and 109 of the framework 21' of theplatform 21. The dependingflanges 24 and 24' are fixed to the side beams 109 1 and 109 of theframework 21. The framework 21' also has similarlateral beams 100, 100'100" and 100" similar tobeams 108 and 108 which extend between thebeams 109 and 109' and'are spaced at intervals therebetween.

Amattress 60 is fixed to the top of the framework 21' and rests upon thelateral beams 108 and 108 and the side beams I09 and 109' of the framework.

A footrest 61 is mounted to theforward lateral beam 100" at the forward end of theframework 21. The footrest 61 has arectangular foot panel 62 with alateral flange 63 extending laterally across thepanel 62 and extending perpendicularly to the foot panel and fixed to the foot panel. Two sets ofeyelets 64, with three eyelets in each set, are mounted along theinner edge 65 of theforward lateral beam 100". Thelateral flange 63 of thefoot panel 62 also has two sets of twoeyelets 66 mounted along its lower edge with theeyelets 64 adapted to be received in alignment with theeyelets 66. A pin 66' passes therethrough to pivotally connect thefoot panel 62 to the inside edge of theforwardmost lateral beam 100" of theframework 21.

Thefoot panel 62 may be pivoted open from its closed panel shown in solid lines in FIGS. 1 and 4 to its open position shown in solid lines in FIG. 5 and in phantom lines in FIG. 1 by pivoting thefoot panel 62 counterclockwise from its position shown in solid lines in FIGS. 1 and 4. Theflange 63 will have sufficient height to clear thecomer 64 of thebeam 100" and thefoot panel 62 will come to rest in a perpendicular relation to theframework 21", whereupon a patient 63 may use thefoot panel 62 to a foot support as illustrated in FIG. 2.

A removableankle support pad 67 is positioned beneath thefoot panel 62 when the foot panel is in its closed position. Theankle support pad 67 has awide panel portion 68 with a projectingledge portion 69 which projects downward between the side beams 109 and 109' when thefoot panel 62 is in its closed position as illustrated in solid lines in FIGS. 1 and 4. The side edges overlap the side beams 109 and 109 of the frame to lock the ankle support pad in the framework while thefoot panel 62 is in its closed position illustrated in solid lines in FIG. 4.

OPERATION The therapy treatment table invention operates as follows:

If it is desired to place a patient upon the treatment table invention 20, for treatment, the operator may first raise themain frame 22 andplatform 21 to its height illustrated in FIG. 1, or slightly higher, to enable theplatform 21 to be pivoted about the rod 27 to a vertical position as illustrated in dashed lines in FIG. 1.

In order to raise theplatform 21 andmain frame 22, so that the platform may be swung to a vertical position, the operator will energize the reversibleelectric motor 40, which will raise the platform and main frame by telescoping the foursleeves 33 simultaneously. The energizing of themotor 40 will cause its motor shaft 40' to rotate which in turn will rotate thegear 39. Thegear 39 in turn will drive and rotate theendless link chain 38 which in turn will drive and rotate the fourgears 35 of the four legs, and the rotation of thegears 35 will rotate the four threadedrods 34, in the four legs. Themotor 40 will be energized in a direction to cause therods 34 to rotate in a direction, through its threaded engagement with thediscs 36, to telescope thecolumns 33 simultaneously of each of the four legs thereby raising themain frame 22 andplatform 21 rectilinearly. When themain frame 22 and platform have been raised to their desired height, themotor 40 will be turned off.

whereupon the operator will pivot thefoot panel 62 open, from its collapsed position shown in solid lines,relative tothe frame 21 in FIG. 4, toits open position shown in solid lines relative to frame 21 in FIG. 5. The operator may also reversethe'ankle support pad 67 from its position shown in FIG. 4 to its position shown in FIG. 5.

Once thefoot panel 62 has been opened, and theplatform 21 andframe 22 has been raised to their desired height, the operator will energizemotor 50 to pivot theplatform 21 from its position shown in solid lines in FIGS. 1 and 4 to position shown in phantom lines in FIG. 1 and solid lines in FIG. 5. The energizingof the reversibleelectric motor 50 in its desired direction will cause its motor shaft 50' to rotate which rotatesgear 57, and the rotation ofgear 57 causes theendless chain 58 to rotate which in turn rotatesgear 56. The rotation ofgear 56 rotates therod 54 which through its threaded engagement withdisc 59 causes the inner column 52 to telescope outward to its position shown in phantom lines in FIG. 4 and designated by numeral 70.

The telescoping of column 52 outward relative to itssleeve 53, causes theplatform 21 to pivot counterclockwise from its horizontal position shown in solid lines in FIGS. 1 and 4 to its vertical position shown in phantom lines in FIGS. 1 and 4.

The telescoping of the column 52 outward causes the column 52 at one end to pivot aboutpin 55 of the platform as the platform pivots up toward a vertical position and simultaneously theentire telescoping member 48, including the rod 52 andsleeve 53, as well as thegears 56 and 57 andendless link chain 58, andmotor 40 to pivot about pivot point 51 of themain frame 22.

When theplatform 21 has been pivoted to its vertical position by the telescoping of rod 52, themotor 50 will be deenergized.

With theplatform 21 in its vertical position, the patient may then walk onto thefootrest 62 and place his back against themattress 60 and be strapped in by thestraps 73, in a position parallel with theplatform 21 andmattress 60. Themotor 50 may then be energized in a reverse direction causing the rod 52 to retract into thesleeve 53 thereby causing theplatform 21 to pivot back about the axis of rod 27 to its horizontal position shown in solid lines in FIGS. 1 and 4, and when theplatform 21 reached its horizontal position themotor 50 will be deenergized.

Once theplatform 21 has been returned to its horizontal position themotor 40 may be energized in the desired direction to raise or lower the platform andmain frame 22 rectilinearly to a desired height for treatment of the patient.

When the treatment of the patient is completed, themotor 40 will be energized to one direction or the other to raise or lower theplatform 21 to the height to allow theplatform 21 to pivot back to a vertical position or near vertical position and themotor 40 will be deenergized.Motor 50 will then be energized in the desired direction to pivot theplatform 21 counter clockwise about the axis of rod 27 to its vertical position illustrated in phantom in FIG. I, or to at least a near vertical position illustrated in FIG. 3 and the straps '73 will be removed to allow the patient to walk or be assisted away from the treatment table invention 20.

Thus, it will be seen that a novel treatment table invention has been provided which facilitates the handling of patients for treatment.

It will be obvious that various changes and departures may be made to the invention without departing from the spirit thereof and accordingly it is not intended that the invention be limited to that specifically described in the specification or as illustrated in the drawings, but only as set forth in the appended claims wherein:

What is claimed is:

1. A therapy treatment table comprising an elongated treatment platform for receiving a patient thereon, a main frame, said platform being pivotally mounted to said main frame adjacent an upper outer edge of said main frame, said main frame having spaced telescoping legs spaced from one another at its lower outer edges at the main frame to support and raise and lower the said platform and main frame, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform on the main frame from a vertical extending position at the one edge of the main frame to a horizontal position across the top of the main frame to facilitate placement of the patient on the platform, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of the platform extend beyond the forward and rearward ends of the main frame, motor means on said main frame for selectively powering the telescoping legs and the telescoping drive member.

2. A therapy treatment table according to claim 1, wherein said pivotally mounting of said platform to said main frame is at a location spaced below the upper edge of the main frame.

3. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having four telescoping legs spaced from one another with two of said telescoping legs positioned adjacent the forward outer corners of the rectangular main frame and with the other two of said telescoping legs positioned adjacent the rearward outer comers of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about a horizontal axis located adjacent the first two of sad telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less that the size of the platform so that the forward and rearward ends of said platform extend beyond the forward two telescoping legs and rearward two telescoping legs, motor means selectively operative to power said drive column to pivot said platform about its pivotal mounting from its horizontal position to a vertical position forwardly and parallel to the forward pair of telescoping legs and to power said telescoping pairs of legs to raise and lower said platform and main frame.

4. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position forwardly of the main frame and parallel to the forward air of telescoping legs, drive means on said mam frame to rive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame.

5. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer comers of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position spaced forwardly of the main frame, drive means on said main frame to drive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame.

Claims (5)

1. A therapy treatment table comprising an elongated treatment platform for receiving a patient thereon, a main frame, said platform being pivotally mounted to said main frame adjacent an upper outer edge of said main frame, said main frame having spaced telescoping legs spaced from one another at its lower outer edges at the main frame to support and raise and lower the said platform and main frame, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform on the main frame from a vertical extending position at the one edge of the main frame to a horizontal position across the top of the main frame to facilitate placement of the patient on the platform, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of the platform extend beyond the forward and rearward ends of the main frame, motor means on said main frame for selectively powering the telescoping legs and the telescoping drive member.

2. A therapy treatment table according to claim 1, wherein said pivotally mounting of said platform to said main frame is at a location spaced below the upper edge of the main frame.

3. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having four telescoping legs spaced from one another with two of said telescoping legs positioned adjacent the forward outer corners of the rectangular main frame and with the other two of said telescoping legs positioned adjacent the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main framE about a horizontal axis located adjacent the first two of said telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward two telescoping legs and rearward two telescoping legs, motor means selectively operative to power said drive column to pivot said platform about its pivotal mounting from its horizontal position to a vertical position forwardly and parallel to the forward pair of telescoping legs and to power said telescoping pairs of legs to raise and lower said platform and main frame.

4. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position forwardly of the main frame and parallel to the forward pair of telescoping legs, drive means on said main frame to drive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame.

5. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position spaced forwardly of the main frame, drive means on said main frame to drive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame.

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