with reference to the drawings , wherein the same reference number indicates the same element throughout , there is shown in fig1 to 7 , a posture support system 10 of the present invention . as shown in fig1 , posture support system 10 comprises a base portion 100 , a vertical arm portion 200 , a horizontal arm portion 300 , and a support portion 400 . the base portion 100 comprises a rectangular shape board 102 . although board 102 is shown to be rectangular shape , board 102 can have other shapes such as oval , circle , or other geometric or non - geometric shapes . preferably board 102 has a plurality of removable adhesive tapes 104 ( such as 3m ® scotch ® restickable tabs for mounting ) attached to the bottom of the board 102 such that the board can be removably secured on a flat surface . board 102 can also be removably secured to the flat surface with velcro ® or similar hook and loop materials ; suction devices , clamping devices , etc . alternatively , board 102 may have a plurality of openings 106 for receiving fasteners that secure the board 102 onto the flat surface . extending adjacent from one edge of the board 102 is the vertical arm portion 200 . the elongated vertical arm portion 200 has a curved configuration that curves away from the board 102 as its height increases . vertical arm portion 200 comprises a lower section 202 and an upper section 204 . the lower section 202 is fixedly connected to the board 102 . the upper section 204 has a center slot opening 206 along its axis . a bolt 208 is attached to the lower section 202 with the bolt &# 39 ; s threaded shaft 210 extending through slot 206 to slidably engage upper section 204 . a nut 212 is attached to the threaded shaft 210 to allow the upper section 204 to be secured to the lower section 202 at a desired position to increase or decrease the height of the vertical arm portion 200 . a guide protrusion 214 extends from the lower section 202 in the same direction as the threaded shaft 210 that engages the slot 206 to guide the axial movement of the upper section 204 along the lower section 202 . fig1 , 5 and 6 show the vertical arm portion 200 at a retracted position . fig2 and 4 show the vertical arm portion 200 at an extended position , with increased height and reach away from the board 102 . fig7 shows the vertical arm portion 200 at a semi - extended position . in an alternative embodiment , a tightening lever that engages the upper section 204 and the lower section 202 allows movement of the upper section 204 with respect to the lower section 202 to increase or decrease the height when the lever is in a released position . indented gearing elements are provide within the upper section 204 that engages the lower section 202 to allow controlled movement . once the desired height is found , the lever may be tightened to lock into position the upper section 204 with respect to the lower section 202 . extending from the upper section 204 of the vertical arm portion 200 is the horizontal arm portion 300 . horizontal arm portion 300 comprises a first link 302 and a second link 304 that are pivotably connected to each other . the first link 302 is connected to the upper section 204 of the vertical arm portion 200 . the second link 304 is connected to first link 302 via a threaded shaft 306 having butterfly nuts 308 at both ends . the shaft 306 and butterfly nuts 308 allow the second link 304 to be pivotable at different angle and height with respect to first link 302 . support portion 400 is connected to the second link 304 of the horizontal arm portion 300 . support portion 400 comprises an elongated cushion 402 having a central pole 404 extending therefore , forming a t - shape . central pole 404 is rotatably connected to the distal end of the second link 304 of the horizontal arm portion 300 such that cushion 402 maybe positioned in vertical alignment ( as shown in the figures ) or in a horizontal alignment ( not shown ). support portion 400 may be removably connected ( such as a push pull connector ) to horizontal arm portion 300 to improve portability of the posture support system 10 . fig8 and 10 show an alternate embodiment of the vertical arm portion 250 . similar to the vertical arm portion 200 , the vertical arm portion 250 has a curved configuration that curves away from the board 102 as its height increases . vertical arm portion 250 comprises a lower section 252 and an upper section 254 . the lower section 252 is fixedly connected to the board 102 . the upper section 254 has a center slot opening 256 . a bolt 258 is attached to the lower section 252 with the bolt &# 39 ; s threaded shaft ( not shown ) extending through slot 256 to slidably engage upper section 254 . a nut 259 is attached to the threaded shaft to allow the upper section 254 to be secured to the lower section 252 at a desired position to increase or decrease the height of the vertical arm portion 250 . a plurality of guide extensions 264 extends from the upper section 254 towards and abuts the edges of the lower section 252 to guide the movement of the upper section 254 along the lower section 252 . fig9 shows the posture support system 10 being used by a user . the board 102 is placed adjacent an edge of a flat surface such as a table . a keyboard 20 being used by the user is placed on the board 102 . the height and angle of the vertical arm portion 200 , the horizontal arm portion 300 and the support portion 400 are adjusted to the comfort of the user , with the cushion 402 positioned in either a horizontal or vertical alignment at the level of the user &# 39 ; s upper chest area . when the user sits at the table with his chest in contact with the cushion 402 , the user &# 39 ; s spine is properly aligned to its natural curvature . the user leans against the posture support system 10 , due to the curvature of the vertical arm portion 200 , it flexes slightly to provide a more flexible and comfortable support for the user . the board 102 may be placed further away from instead of adjacent to the edge of the table if it is more comfortable to the user . fig1 to 14 show a posture support system 20 of the present invention , which comprises a base portion 120 , a vertical arm portion 220 , a horizontal arm portion 320 , and a support portion 420 . base portion 120 is similar to base portion 100 of fig1 , comprises a rectangular shape board 122 , except that two spaced apart tabs 124 are provided on an edge that abuts the edge of a flat surface . tabs 124 are intended to abut an edge of the flat surface to align the board 122 against the edge of the flat surface and to prevent movement of the board 122 from the edge of the flat surface . each tab 124 optionally has an opening 126 for receiving fasteners that secure the board 122 to the flat surface . extending adjacent from one edge of the board 122 is the vertical arm portion 220 . the elongated vertical arm portion 220 is similarly positioned and curved as the vertical arm portion 120 of fig1 . vertical arm portion 220 comprises an outer section 222 and an inner section 224 . the outer section 222 is fixedly connected to the board 122 . the outer section 222 has an inner channel that receives inner section 224 and allows inner section 224 to be slide in and out with respect to the outer section 222 to increase or decrease the height of the vertical arm portion 220 . pivotably connected to the distal end of the inner section 224 of the vertical arm portion 220 is the horizontal arm portion 320 . the horizontal arm portion 320 comprises a first link 322 having one end connected to the distal end of the inner section 224 and the opposite end rotatably and pivotably connected to the support portion 420 via a ball joint or other similar connection . support portion 420 is similar to support portion 400 of fig1 and comprises an elongated cushion 422 , but without a central pole 404 . the side of the support portion 420 facing the horizontal arm portion 320 is an elongated groove 426 . the first link 322 of the horizontal arm portion 320 and the support portion 420 forms a t - shape . the posture support system 20 further comprises a compression portion 500 . the compression portion 500 comprises a generally oval shape ring 502 that can be compressed under pressure , with the first link 322 positioned to pass through the minor axis of the oval ring 502 . ring 502 engages the elongated groove 426 to hold the support portion 420 in a relatively stable position . due to the oval shape and compressibility of ring 502 , it advantageously allows supported pivotal movement of the support portion 420 to increase a user &# 39 ; s comfort when the user leans against the cushion 422 . fig1 to 20 show a posture support system 30 of the present invention , which comprises a base portion 140 , a vertical arm portion 240 , a horizontal arm portion 340 , a support portion 440 and a compression portion 520 . base portion 140 is similar to base portion 120 of fig1 , comprises a rectangular shape board 142 , except that a lip 144 is provided along an edge that abuts the edge of a flat surface . lip 144 is intended to abut an edge of the flat surface to align the board 142 against the edge of the flat surface and to prevent movement of the board 142 from the edge of the flat surface . the lip 144 optionally has one or more opening 146 for receiving fastener ( s ) that secure the board 142 to the flat surface . extending adjacent from one edge of the board 142 is the vertical arm portion 240 , which is similar to vertical arm portion 220 of fig1 . pivotably connected to the distal end of the vertical arm portion 240 is the horizontal arm portion 340 . the horizontal arm portion 340 comprises a first link 342 having a tubular body 344 with a spring - loaded insert 346 therein extending from the distal end . at the distal end of the first link 342 is pin 348 . support portion 440 is similar to support portion 420 of fig1 and comprises an elongated cushion 442 and having an elongated groove 446 . along the groove 446 is a plurality sets of positioning elements 448 a , 448 b and 448 c . pin 348 of the first link 342 is pivotably attached to elongated groove 446 . compression portion 520 is similar to compression portion 500 of fig1 and comprises a generally oval shape ring 522 that can be compressed under pressure , with the first link 342 positioned to pass through the minor axis of the oval ring 522 . ring 522 engages the positioning elements 448 a and 448 c along with a plurality of protrusions 524 that engages the set of positioning elements 448 b to hold the support portion 440 in a relatively stable position . due to the oval shape and compressibility of ring 522 , it advantageously allows supported pivotal movement of the support portion 420 to increase a user &# 39 ; s comfort when the user leans against the cushion 442 . posture support system 30 further allows supported axial movement along the minor axis of the ring 522 due to the spring - loaded insert 346 , which allows the ring 522 to compress against pressure applied to the cushion 442 . fig2 shows an embodiment of the vertical arm portion 220 or 240 of fig1 or 15 . the inner channel 226 of the outer section 222 has a plurality of spaced apart detents 228 . the inner section 224 has a protrusion ( not shown ) that corresponds to and engages the detent 228 such that the inner section 224 can be slide - click in and out with respect to the outer section 222 to increase or decrease the height of the vertical arm portion 220 . fig2 to 25 show another embodiment of vertical arm portion 220 or 240 of fig1 or 15 . similar to the vertical arm portion 220 shown in fig2 , the inner channel 246 of the outer section 242 has a plurality of spaced apart detents 248 . the inner section 244 has a protrusion 241 that corresponds to and engages the detent 248 and is attached to a v - shape spring 243 such that the inner section 244 can be slide - click in and out with respect to the outer section 242 to increase or decrease the height of the vertical arm portion 240 . the v - shape spring 243 aids in maintaining the positioning of the inner section 244 with respect to the outer section 242 to prevent accidental disengagement of the protrusion 241 from detent 248 . fig2 shows another embodiment of vertical arm portion 270 comprises a lower section 272 and an upper section 274 . the lower section 272 has a recess 276 that corresponds and slidably receives the upper section 274 . upper section 274 can be slid along recess 276 to increase or decrease the height of the vertical arm portion 270 . fig2 and 28 show an alternate cushion 462 for the support portion 400 , 420 or 440 . instead of an elongated cushion , cushion 462 is a ball or round shape preferably made of a foam material . it may also be made of rubber , silicone , etc . the features of the invention illustrated and described herein is the preferred embodiment . therefore , it is understood that the specification is intended to cover unforeseeable embodiments with insubstantial differences that are within the spirit of the specification .
a posture support system that includes a base portion , a vertical arm portion extending from the base portion , a horizontal arm portion extending from the vertical arm portion , and a support portion extending from the horizontal arm portion . the base portion includes a rectangular board that rests on a flat surface . the vertical arm and horizontal arm portions are fully adjustable to accommodate different users when a user rests against the support portion to perform work , such as typing , on the flat surface . the posture support system induces proper seated posture .