Abstract:
A retrofitting canopy assembly includes a housing defining an interior and first and second openings communicating from the interior to the environment and, together, shaped to receive a top portion of a chair frame when slid thereon, washers, a canopy frame, a ratchet part rotationally fixed to the canopy frame, another ratchet part rotationally fixed to the housing, a frame lock within the housing and movable to secure the housing on the chair frame, and a fastener securing the canopy frame to the first and second ratchet parts, the housing, the frame lock, and washers such that, when the housing is placed on the top of the chair frame, the canopy ratchet parts remain rotationally fixed to one other to keep the shade canopy in a given position until a force sufficient to overcome the ratchet is applied to the canopy frame and/or the shade canopy.

Description:
FIELD OF THE INVENTION 
     The present systems and methods lies in the field of canopy assemblies. The present disclosure relates to a retrofitting canopy assembly for a chair and methods for manufacturing such a canopy assembly. 
     BACKGROUND OF THE INVENTION 
     Attempts have been made to provide canopied seating in various configurations. However, these attempts have either produced seating having a permanent “built-in” canopy or temporary canopy attachments that are not sturdy. Presently, there is no temporary canopy that is adjustable and can be fitted securely to a chair. 
     Thus, a need exists to overcome the problems with the prior art systems, designs, and processes as discussed above. 
     SUMMARY OF THE INVENTION 
     The systems and methods described provide a canopy that overcome(s) the hereinafore-mentioned disadvantages of the heretofore-known devices and methods of this general type and that provide such features with a canopy assembly. 
     With the foregoing and other objects in view, there is provided, a retrofitting canopy assembly includes a canopy sling rail housing defining an interior and first and second openings communicating from the interior to the environment and, together, are shaped to receive a top portion of a sling-back-type chair frame when the canopy sling rail housing is slid thereon to place the top portion within the interior, a plurality of washers, a canopy frame having a connection section and a shade canopy, a first canopy ratchet part rotationally fixed to the connection section of the canopy frame, a second canopy ratchet part rotationally fixed to the canopy sling rail housing, a frame lock positioned within the interior of the canopy sling rail housing and movable to selectively press against the top portion of the sling-back-type chair frame when the canopy sling rail housing is installed thereon, and a fastener securing the connection section of the canopy frame to the first canopy ratchet part, the second canopy ratchet part, the canopy sling rail housing, the frame lock, and the plurality of washers such that, when the canopy sling rail housing is placed on the top portion of the sling-back-type chair frame, the first and second canopy ratchet parts remain rotationally fixed to one other to keep the shade canopy in a given position until a given force sufficient to overcome the ratchet is applied to at least one of the canopy frame and the shade canopy. 
     In accordance with another feature, the canopy sling rail housing, the plurality of washers, the first and second canopy ratchet parts, the frame lock, and the fastener is a first housing sub-assembly and further comprising a second housing sub-assembly that is a mirror image of the first housing sub-assembly and the two housing sub-assemblies respectively fit over opposing top portions of the sling-back-type chair frame to place the shade canopy over the sling-back-type chair and provide shade to a user in an adjustable manner. 
     In accordance with a further feature, the fastener removably secures the connection section of the canopy frame to the first canopy ratchet part, the second canopy ratchet part, the canopy sling rail housing, the frame lock, and the plurality of washers. 
     In accordance with an added feature, the connection section of canopy frame has a transverse opening, the first and second canopy ratchet parts have a coaxial central openings, the canopy sling rail housing has a transverse opening pair, the frame lock has a transverse opening, the plurality of washers each have a coaxial central opening, and the fastener is a single screw passing through, in order, the transverse opening, the coaxial central openings, a first of the transverse opening pair, the transverse opening, the second of the transverse opening pair, and the coaxial central openings, and the canopy frame, the first and second ratchet parts, the canopy sling rail housing, the frame lock, and the washers are fastened together with a locking nut to permit the first and second canopy ratchet parts to remain rotationally fixed to one other and keep the shade canopy in a given position until a given force sufficient to overcome the ratchet is applied to at least one of the canopy frame and the shade canopy. 
     In accordance with an additional feature, there is provided a thumb screw cooperating with the canopy sling rail housing to selectively move the frame lock towards and away from the top portion of the sling-back-type chair frame when the canopy sling rail housing is installed thereon. 
     In accordance with yet another feature, the frame lock and the thumb screw removably secure the canopy sling rail housing to the top portion of the sling-back-type chair frame. 
     In accordance with yet a further feature, the first canopy ratchet part has a plurality of first circumferentially spaced ridges defining a plurality of first trenches between each adjacent pair of the plurality of first circumferentially spaced ridges and the second canopy ratchet part has a plurality of second circumferentially spaced ridges defining a plurality of second trenches between each adjacent pair of the plurality of second circumferentially spaced ridges. 
     In accordance with yet an added feature, the second circumferentially spaced ridges are a mirror image of the first circumferentially spaced ridges such that, when the first and second circumferentially spaced ridges are meshed together, a ratchet assembly is formed. 
     In accordance with yet an additional feature, the plurality of first circumferentially spaced ridges are shaped to fit into the plurality of second trenches, the plurality of second circumferentially spaced ridges are shaped fit into the plurality of first trenches, and, when the first and second circumferentially spaced ridges are fit into the respective first and second trenches, the first and second canopy ratchet parts together form a ratchet assembly. 
     In accordance with again another feature, the plurality of washers comprise a pair of non-elastic washers sandwiching therebetween a pair of elastic washers. 
     In accordance with again a further feature, the fastener has a longitudinal axis, the plurality of washers together permit displacement along the longitudinal axis of the fastener, and radial adjustment of the first and second ratchet parts is accomplished by rotating the plurality of first radial ridges and second radial ridges to an adjacent trench with the displacement of the washers along the longitudinal axis. 
     In accordance with again an added feature, the connection section defines at least one first orifice, a first canopy ratchet part has at least one projection that, when inserted into the at least one first orifice, rotationally fixes the first canopy ratchet part to the connection section of the canopy frame, the canopy sling rail housing defines at least one second orifice, and the second canopy ratchet part has at least one projection that, when inserted into the at least one second orifice, rotationally fixes the second canopy ratchet part to the canopy sling rail housing. 
     With the objects in view, there is also provided a retrofitting canopy assembly includes a canopy frame having a first connection section, a second connection section, and a shade canopy, and first and second housing sub-assemblies. The first housing sub-assembly comprises a first canopy sling rail housing defining a first housing interior and first and second openings communicating from the first housing interior to the environment and, together, are shaped to receive a top left portion of a sling-back-type chair frame when the first canopy sling rail housing is slid thereon to place the top left portion within the first housing interior, a first plurality of washers, a first canopy ratchet part rotationally fixed to the first connection section of the canopy frame, a second canopy ratchet part rotationally fixed to the first canopy sling rail housing, a first frame lock positioned within the first housing interior and movable to selectively press against the top left portion of the sling-back-type chair frame when the first canopy sling rail housing is installed thereon, and a first fastener securing the first connection section of the canopy frame to the first canopy ratchet part, the second canopy ratchet part, the first canopy sling rail housing, the first frame lock, and the first plurality of washers such that, when the first canopy sling rail housing is placed on the top left portion of the sling-back-type chair frame, the first and second canopy ratchet parts remain rotationally fixed to one other to keep the shade canopy in a given position until a given force sufficient to overcome the ratchet is applied to at least one of the canopy frame and the shade canopy. The second housing sub-assembly comprises a second canopy sling rail housing defining a second housing interior and third and fourth openings communicating from the second housing interior to the environment and, together, are shaped to receive a top right portion of a sling-back-type chair frame when the second canopy sling rail housing is slid thereon to place the top right portion within the second housing interior, a second plurality of washers, a third canopy ratchet part rotationally fixed to the second connection section of the canopy frame, a fourth canopy ratchet part rotationally fixed to the second canopy sling rail housing, a second frame lock positioned within the second housing interior and movable to selectively press against the top right portion of the sling-back-type chair frame when the second canopy sling rail housing is installed thereon, and a second fastener securing the second connection section of the canopy frame to the third canopy ratchet part, the fourth canopy ratchet part, the second canopy sling rail housing, the second frame lock, and the second plurality of washers such that, when the second canopy sling rail housing is placed on the top right portion of the sling-back-type chair frame, the third and fourth canopy ratchet parts remain rotationally fixed to one other to keep the shade canopy in a given position until a given force sufficient to overcome the ratchet is applied to at least one of the canopy frame and the shade canopy. 
     In accordance with again an additional feature, there are provided thumb screws each respectively cooperating with one of the first and second canopy sling rail housings to selectively move the respective one of first and second frame locks towards and away from the top left or right portions of the sling-back-type chair frame when the first and second canopy sling rail housings are installed thereon. 
     In accordance with still another feature, each respective pair of the frame locks and the thumb screws removably secure one of the first and second canopy sling rail housings to one of the top left or right portions of the sling-back-type chair frame. 
     In accordance with still a further feature, the first canopy ratchet part has a plurality of first circumferentially spaced ridges defining a plurality of first trenches between each adjacent pair of the plurality of first circumferentially spaced ridges, the second canopy ratchet part has a plurality of second circumferentially spaced ridges defining a plurality of second trenches between each adjacent pair of the plurality of second circumferentially spaced ridges, the third canopy ratchet part has a plurality of third circumferentially spaced ridges defining a plurality of third trenches between each adjacent pair of the plurality of third circumferentially spaced ridges, and the fourth canopy ratchet part has a plurality of fourth circumferentially spaced ridges defining a plurality of fourth trenches between each adjacent pair of the plurality of fourth circumferentially spaced ridges. 
     In accordance with still an added feature, the second circumferentially spaced ridges are a mirror image of the first circumferentially spaced ridges such that, when the first and second circumferentially spaced ridges are meshed together, a ratchet assembly is formed and the fourth circumferentially spaced ridges are a mirror image of the third circumferentially spaced ridges such that, when the third and fourth circumferentially spaced ridges are meshed together, a ratchet assembly is formed. 
     In accordance with still an additional feature, the plurality of first circumferentially spaced ridges are shaped to fit into the plurality of second trenches, the plurality of second circumferentially spaced ridges are shaped fit into the plurality of first trenches, the plurality of third circumferentially spaced ridges are shaped to fit into the plurality of fourth trenches, the plurality of fourth circumferentially spaced ridges are shaped fit into the plurality of third trenches, and, when the third and fourth circumferentially spaced ridges are fit into the respective third and fourth trenches, the third and fourth canopy ratchet parts together form a ratchet assembly. 
     In accordance with an additional feature, the first and second plurality of washers each comprise a pair of non-elastic washers sandwiching therebetween a pair of elastic washers, each of the first and second fasteners has a longitudinal axis, the sets of the first and second plurality of washers each permit displacement along the longitudinal axis of the respective first and second fasteners, and radial adjustment of the first and second ratchet parts and the third and fourth ratchet parts is accomplished by respectively rotating the plurality of first radial ridges and second radial ridges to an adjacent trench with the displacement of the washers along the longitudinal axis and rotating the plurality of third radial ridges and fourth radial ridges to an adjacent trench with the displacement of the sets of washers along the longitudinal axis. 
     In accordance with a concomitant feature, the first connection section defines at least one first orifice, a first canopy ratchet part has at least one projection that, when inserted into the at least one first orifice, rotationally fixes the first canopy ratchet part to the first connection section of the canopy frame, the first canopy sling rail housing defines at least one second orifice, the second canopy ratchet part has at least one projection that, when inserted into the at least one second orifice, rotationally fixes the second canopy ratchet part to the first canopy sling rail housing, the second connection section defines at least one third orifice, a third canopy ratchet part has at least one projection that, when inserted into the at least one third orifice, rotationally fixes the third canopy ratchet part to the second connection section of the canopy frame, the second canopy sling rail housing defines at least one fourth orifice, and the fourth canopy ratchet part has at least one projection that, when inserted into the at least one fourth orifice, rotationally fixes the fourth canopy ratchet part to the second canopy sling rail housing. 
     Although the systems and methods are illustrated and described herein as embodied in a retrofitting canopy assembly for a chair and methods of manufacturing same, it is, nevertheless, not intended to be limited to the details shown because various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims. Additionally, well-known elements of exemplary embodiments will not be described in detail or will be omitted so as not to obscure the relevant details of the systems and methods. 
     Additional advantages and other features characteristic of the systems and methods will be set forth in the detailed description that follows and may be apparent from the detailed description or may be learned by practice of exemplary embodiments. Still other advantages of the systems and methods may be realized by any of the instrumentalities, methods, or combinations particularly pointed out in the claims. 
     Other features that are considered as characteristic for the systems and methods are set forth in the appended claims. As required, detailed embodiments of the systems and methods are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the systems and methods, which can be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one of ordinary skill in the art to variously employ the systems and methods in virtually any appropriately detailed structure. Further, the terms and phrases used herein are not intended to be limiting; but rather, to provide an understandable description of the systems and methods. While the specification concludes with claims defining the systems and methods of the invention that are regarded as novel, it is believed that the systems and methods will be better understood from a consideration of the following description in conjunction with the drawing figures, in which like reference numerals are carried forward. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying figures, where like reference numerals refer to identical or functionally similar elements throughout the separate views, which are not true to scale, and which, together with the detailed description below, are incorporated in and form part of the specification, serve to illustrate further various embodiments and to explain various principles and advantages all in accordance with the systems and methods. Advantages of embodiments of the systems and methods will be apparent from the following detailed description of the exemplary embodiments thereof, which description should be considered in conjunction with the accompanying drawings in which: 
         FIG. 1  is an exploded, perspective view of a first half of exemplary embodiment of a canopy assembly; 
         FIG. 2  is an exploded, perspective view of a second half of the canopy assembly of  FIG. 1 ; 
         FIG. 3  is a perspective view of the first side of the canopy assembly of  FIG. 1 ; 
         FIG. 4  is a perspective view of the second side of the canopy assembly of  FIG. 2 ; 
         FIG. 5  is a photograph showing a back view of a left side canopy assembly of  FIG. 2 ; 
         FIG. 6  is a photograph showing a front view of a right side canopy assembly of  FIG. 1 ; 
         FIG. 7  is a photograph of an exemplary embodiment of a left side canopy with a view of an interior of a canopy sling rail housing; 
         FIG. 8  is a photograph of the left side canopy of  FIG. 7  rotated before installation on a sling-back chair frame; 
         FIG. 9  is a perspective view of sling-back chaise lounge that incorporates an exemplary embodiment of canopy assemblies and a canopy; 
         FIG. 10  is a top plan view of an exemplary embodiment of a canopy sling rail housing; 
         FIG. 11  is a rear elevational view of the canopy sling rail housing of  FIG. 10 ; 
         FIG. 12  is a right side elevational view of the canopy sling rail housing of  FIG. 10 ; 
         FIG. 13  is a front elevational view of the canopy sling rail housing of  FIG. 10 ; 
         FIG. 14  is a perspective view of the canopy sling rail housing of  FIG. 10  from above the rear side; 
         FIG. 15  is a top plan view of the canopy sling rail housing of  FIG. 10 ; 
         FIG. 16  is a right side elevational view of the canopy sling rail housing of  FIG. 10 ; 
         FIG. 17  is a bottom plan view of the canopy sling rail housing of  FIG. 10 ; 
         FIG. 18  is a left side elevational view of the canopy sling rail housing of  FIG. 10 ; 
         FIG. 19  is a bottom plan view of an exemplary embodiment of a canopy ratchet; 
         FIG. 20  is a side elevational view of the canopy ratchet of  FIG. 19 ; 
         FIG. 21  is a top plan view of the canopy ratchet of  FIG. 19 ; 
         FIG. 22  is a side elevational view of the canopy ratchet of  FIG. 20  rotated ninety degrees; 
         FIG. 23  is a top perspective view of the canopy ratchet of  FIG. 19  showing a plurality of radial ridges in accordance with one exemplary embodiment; 
         FIG. 24  is a bottom perspective view of the canopy ratchet of  FIG. 19  showing protrusions in accordance with one exemplary embodiment; 
         FIG. 25  is an action face side elevational view of an exemplary embodiment of a frame lock; 
         FIG. 26  is a perspective view from behind the action face of the frame lock of  FIG. 25 ; 
         FIG. 27  is a top plan view of the frame lock of  FIG. 25 ; 
         FIG. 28  is a bottom plan view of the frame lock of  FIG. 25 ; 
         FIG. 29  is a rear elevational view of the frame lock of  FIG. 25 ; 
         FIG. 30  is a side elevational view of the frame lock of  FIG. 25 ; 
         FIG. 31  is a side elevational view of a thumb screw; 
         FIG. 32  is a fragmentary, enlarged, side elevational view of a threaded portion of the thumb screw within circle C in  FIG. 31 ; 
         FIG. 33  is a bottom plan view of the thumb screw of  FIG. 31 ; and 
         FIG. 34  is a top plan view of the thumb screw of  FIG. 31 . 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     As required, detailed embodiments of the systems and methods are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the systems and methods, which can be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the systems and methods in virtually any appropriately detailed structure. Further, the terms and phrases used herein are not intended to be limiting; but rather, to provide an understandable description of the systems and methods. While the specification concludes with claims defining the features of the systems and methods that are regarded as novel, it is believed that the systems and methods will be better understood from a consideration of the following description in conjunction with the drawing figures, in which like reference numerals are carried forward. 
     In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration embodiments that may be practiced. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of embodiments is defined by the appended claims and their equivalents. 
     Alternate embodiments may be devised without departing from the spirit or the scope of the invention. Additionally, well-known elements of exemplary embodiments of the systems and methods will not be described in detail or will be omitted so as not to obscure the relevant details of the systems and methods. 
     Before the systems and methods are disclosed and described, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. The terms “comprises,” “comprising,” or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by “comprises . . . a” does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. The terms “including” and/or “having,” as used herein, are defined as comprising (i.e., open language). The terms “a” or “an”, as used herein, are defined as one or more than one. The term “plurality,” as used herein, is defined as two or more than two. The term “another,” as used herein, is defined as at least a second or more. The description may use the terms “embodiment” or “embodiments,” which may each refer to one or more of the same or different embodiments. 
     The terms “coupled” and “connected,” along with their derivatives, may be used. It should be understood that these terms are not intended as synonyms for each other. Rather, in particular embodiments, “connected” may be used to indicate that two or more elements are in direct physical or electrical contact with each other. “Coupled” may mean that two or more elements are in direct physical or electrical contact (e.g., directly coupled). However, “coupled” may also mean that two or more elements are not in direct contact with each other, but yet still cooperate or interact with each other (e.g., indirectly coupled). 
     For the purposes of the description, a phrase in the form “A/B” or in the form “A and/or B” or in the form “at least one of A and B” means (A), (B), or (A and B), where A and B are variables indicating a particular object or attribute. When used, this phrase is intended to and is hereby defined as a choice of A or B or both A and B, which is similar to the phrase “and/or”. Where more than two variables are present in such a phrase, this phrase is hereby defined as including only one of the variables, any one of the variables, any combination of any of the variables, and all of the variables, for example, a phrase in the form “at least one of A, B, and C” means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C). 
     Relational terms such as first and second, top and bottom, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The description may use perspective-based descriptions such as up/down, back/front, and top/bottom. Such descriptions are merely used to facilitate the discussion and are not intended to restrict the application of disclosed embodiments. Various operations may be described as multiple discrete operations in turn, in a manner that may be helpful in understanding embodiments; however, the order of description should not be construed to imply that these operations are order dependent. 
     As used herein, the term “about” or “approximately” applies to all numeric values, whether or not explicitly indicated. These terms generally refer to a range of numbers that one of skill in the art would consider equivalent to the recited values (i.e., having the same function or result). In many instances these terms may include numbers that are rounded to the nearest significant figure. 
     Herein various embodiments of the systems and methods are described. In many of the different embodiments, features are similar. Therefore, to avoid redundancy, repetitive description of these similar features may not be made in some circumstances. It shall be understood, however, that description of a first-appearing feature applies to the later described similar feature and each respective description, therefore, is to be incorporated therein without such repetition. 
     Described now are exemplary embodiments. Referring now to the figures of the drawings in detail and first, particularly to  FIG. 1 , there is shown a first exemplary embodiment of a canopy assembly. The canopy assemblies of the present disclosure can be described as retrofitting canopy assemblies that can be attached to a sling-back style chair or any other chair capable of being used with the presently disclosed canopy assemblies. In an alternative embodiment, the canopy can fit over the poles of the back of any chair. The poles can be cylindrical, cubic, etc., and the canopy assembly can be attached to whatever shaped poles are present. 
       FIG. 1  is an exploded view of a canopy assembly  100  according to one exemplary embodiment. Canopy assembly  100  that is shown is a canopy assembly  100  that is attached to a right side of a chair. A similar, mirror-imaged canopy assembly  200  is to be attached to a left side of a chair and is shown in the exploded view of  FIG. 2 . The elements of canopy assemblies  100 ,  200  are the same except for the shape of the canopy sling rail housing  14 , which is to be attached to a left side of a chair. 
     The canopy assembly  100  includes a fastener  1  (e.g., a screw), a canopy frame  2  (only a portion of the canopy is shown), two canopy ratchet parts  3 ,  11 , a canopy sling rail housing  4 , a thumb screw  5 , a frame lock  6 , two non-elastic washers  8 ,  13  (e.g., metal washers), two elastic washers  9 ,  12 , and a locking nut  10 . A portion of a sling-rail chair frame  7  is shown for illustrative purposes. As used herein, non-elastic means that the material is substantially incompressible and elastic means that the material is compressible. Therefore, the non-elastic washers  8 ,  13  can be, e.g., of metal, such as stainless steel, aluminum, and nickel, and the elastic washers can be, e.g., of rubber or plastic. The portion of the canopy frame  2  that is shown in  FIGS. 1 and 2  can be a lower canopy frame part, which is depicted, or the portion can be the entirety of the canopy frame, which is depicted in  FIGS. 5 and 6 . 
     In one exemplary embodiment, the screw  1  has a size of ¼″-20×3½″ (i.e., the screw has a gauge of ¼″ inch, 20 threads per inch, and a length of 3½″ inches). In one exemplary embodiment, locking nut  10  is a stainless steel nut with a nylon lock nut. In one exemplary embodiment, the flexible washers  9 ,  12  are rubber washers but they can also be of neoprene. In one exemplary embodiment, metal washers  8 ,  13  are stainless steel and neoprene washer assemblies. 
     To assemble the canopy assembly  100 , the screw  1  is passed through (in order): the canopy frame  2 ; a first canopy ratchet part  3 ; a second canopy ratchet part  11 ; the canopy sling rail housing  4 ; the frame lock  6 ; a first metal washer  8 ; a first rubber washer  9 ; a second rubber washer  12 ; and a second metal washer  13 . The locking nut  10  is rotated along the threads of the screw to tighten elements  2 ,  3 ,  4 ,  6 ,  8 ,  9 ,  11 ,  12 , and  13  together. 
       FIG. 3  shows a first side of the canopy assembly  100  for the right side of a chair and  FIG. 4  shows the opposite second side of the canopy assembly  100 . 
       FIG. 5  depicts the back of the left side canopy assembly  200  mounted to a chair back portion  510  of a sling-back chair.  FIG. 6  depicts the front of the right side canopy assembly  100  when mounted to a chair back portion  610  of the cling-back chair. 
     In one exemplary embodiment, the thumb screw  5  works in conjunction with the frame lock  6  to lock sling rail  7  into place. Sling rail  7  can then be inserted into an opening of a chair back portion  510 ,  610 . In another embodiment, the thumb screw  5  works in conjunction with the frame lock  6  to lock the canopy sling rail housing  4  in place after it has been inserted over a chair back portion  510 ,  610 . The canopy sling rail housing  4  has an opening  815 , shown best in  FIG. 8 , that allows the walls to slide past an upper portion  505  of the sling back of the chair back when being inserted over the chair back portion  510 ,  610 . This installation is depicted in  FIGS. 7 and 8 . In particular,  FIG. 7  shows the left side canopy assembly  200  with a view of the interior of the canopy sling rail housing  14  and  FIG. 8  depicts how the canopy sling rail housing  14  of the left side canopy assembly  200  is able to slide over the upper portion  505  of the sling back and over the sling-chair frame portion  510  using opening  815 . 
       FIG. 9  is a photograph of a sling-back type chaise lounge  905  that incorporates the canopy assemblies  100 ,  200  and a canopy  910 . 
       FIGS. 10 to 18  depict various views of a right side canopy sling rail housing  4 . Although  FIGS. 10 to 18  show a right side canopy sling rail housing  4 , it should be readily apparent to those having skill in the art that a left side canopy sling rail housing  14  can be made according to the same specifications in a mirror configuration.  FIG. 10  illustrates a top plan view of canopy sling rail housing  4 . In one exemplary embodiment, the width W of the canopy sling rail housing  4  is 28.45 mm. 
       FIG. 11  illustrates a rear view of canopy sling rail housing  4 . This view shows a screw hole  1105  for the thumb screw  5 . In one exemplary embodiment, a height H 1  from a bottom of canopy sling rail housing  4  to a center of the screw hole  1105  is 20.78 mm. 
       FIG. 12  is a side view of canopy sling rail housing  4 . This view shows two recesses or holes  41  that accommodate protrusions  31 ,  33  on back surfaces of each part of the canopy ratchet  3 ,  11 . This view also shows a through hole  42 , which accommodates the screw  1 . 
       FIG. 13  is a front view of the canopy sling rail housing  4  and reveals the space or opening  815  and the screw hole  1105 . Also shown are front facing portions  1305 ,  1310 . 
       FIG. 14  is a perspective view of canopy sling rail housing  4 . This view shows the recesses or holes  41 , the through hole  42 , and screw hole  1105 . The size of the screw hole  1105  in an exemplary embodiment is a ¼-20 sized thread. 
       FIG. 15  is a top plan view of canopy sling rail housing  4 . This view shows the width and the overall height H 2 , which in an exemplary embodiment is 63.52 mm. 
       FIG. 16  is a first side view of canopy sling rail housing  4 . This view shows the recesses or holes  41  and the through hole  42 . In this view, some dimensions of the rear of the canopy sling rail housing  4  are shown. In an exemplary embodiment, a distance D between the recesses or holes  41  and the through hole  42  is 10.1 mm, and a width W 2  of the recesses or holes  41  is 6.6 mm. 
     The rear of the canopy sling rail housing  4  has two vertical portions  1605 ,  1610  and an angled connecting portion  1615 . In an exemplary embodiment, a horizontal displacement D 2  from the first vertical portion  1605  to the second vertical portion  1610  (i.e., the face for the thumb screw  5  and behind which is the frame lock  6 ) is 9.5 mm. The vertical portion  1605  and the angled connecting portion  1615  are positioned relative to each other at an angle A, which, in an exemplary embodiment, is 130 degrees. 
       FIG. 17  is a bottom plan view of canopy sling rail housing  4 . In this view, a thickness T of each side of the canopy sling rail housing  4  is shown and, for example, is 4.32 mm. A width W 3  of the interior space can be, for example, 19.81 mm. 
       FIG. 18  is an opposing second side view of canopy sling rail housing  4  to the side shown in  FIG. 16 . This view shows the correspondingly opposite through hole  42  to the through hole  42  shown in  FIG. 16 . As before, in the exemplary embodiment, a diameter of the through hole  42  is 6.60 mm. Also shown are the vertical portions  1605 ,  1610 , the angled connecting portion  1615 , and front facing portions  1305 ,  1310 . In an exemplary embodiment, a height of the opening  815  is 44 mm, a horizontal displacement W 4  between the front facing portion  1305  and the front facing portion  1310  is 6.35 mm, a distance D 3  from the center of the through hole  42  to the top of the vertical portion  1605  is 24.40 mm, and a distance D 4  from the center of the through hole  1807  to the face of the vertical portion  1310  is 12.30 mm. 
       FIGS. 19 to 24  show various views of the canopy ratchet  3 ,  11 .  FIG. 19  is a bottom view of one of the canopy ratchet parts  3 ,  11  and shows two protrusions  31 ,  33 . A through hole  32  for the screw  1  is also shown. In one exemplary embodiment, the protrusions  31 ,  33  have a diameter D 5  of 6.30 mm. As shown in  FIGS. 1 and 2 , the protrusions  31 ,  33  on one part of the canopy ratchet  3 ,  11  fit into a respective set of recesses or holes in the canopy frame  2  and on the other part of the canopy ratchet  11 ,  3  fit into a respective set of recesses or holes  41  in the canopy sling rail housing  4 ,  14 . 
       FIG. 20  is a side plan view of one part of the canopy ratchet  3 ,  11 . A plurality of radial ridges  2005  is shown on a first surface of the canopy ratchet  3 ,  11  opposite the protrusions  31 ,  33 . In an exemplary embodiment, a diameter D 6  of the first surface of the canopy ratchet is 37.45 mm, a height H 3  of the canopy ratchet measured from a top surface of the radial ridges  2005  to a bottom surface of the protrusions  31 ,  33  is 20.20 mm, and a height H 4  of the protrusions as measured from the second surface of the canopy ratchet  3 ,  11  to the furthest extent of the protrusions  31 ,  33  is 9.50 mm. 
       FIG. 21  is a top plan view of the canopy ratchet  3 ,  11 . The plurality of radial ridges  2005  are also shown in this figure. In an exemplary embodiment, a distance D 6  between a top portion of one ridge to the top portion of an adjacent ridge of the plurality of ridges  2005  on an outer portion of the canopy ratchet  3 ,  11  is 4.6 mm, a distance D 7  between a bottom portion of one ridge to the bottom portion of an adjacent ridge of the plurality of ridges  2005  on an outer portion of the canopy ratchet  3 ,  11  is 2 mm, a distance D 8  between a top portion of one ridge to the top portion of an adjacent ridge of the plurality of ridges  2005  on an inner portion of the canopy ratchet  3 ,  11  is 2 mm, a distance D 9  between a bottom portion of one ridge to a bottom portion of an adjacent ridge of the plurality of ridges  2005  on an inner portion of the canopy ratchet  3 ,  11  is 0.25 mm, and a diameter D 10  of the through hole  32  is 6.5 mm. 
       FIG. 22  is a side elevational view of the canopy ratchet  3 ,  11 . The plurality of radial ridges  2005  are shown in this figure. In an exemplary embodiment, a distance D 11  between the first surface of the canopy ratchet and the top surface of the plurality of radial ridges is 2 mm, and a distance D 12  between the first surface  2205  and the second surface  2207  is 8.70 mm.  FIG. 23  is a perspective view of the canopy ratchet  3 ,  11  and reveals the details of the plurality of radial ridges.  FIG. 24  is a perspective view of the canopy ratchet  3 ,  11  opposite the view of  FIG. 23  and shows the protrusions  31 ,  33  and the through hole  32 . 
     Referring back to  FIGS. 5 and 6 , when the canopy assemblies  100 ,  200  are assembled, the first surfaces of canopy ratchets  3 ,  11  face each other and the ridges of one canopy ratchet, e.g., canopy ratchet  3 , fits into the spaces between ridges, e.g., trenches, in the other second canopy ratchet, e.g., canopy ratchet  11 , and vice versa. This is meant to be a tight, rigid fit that requires the use of a radial force to rotate the plurality of ridges such that one ridge moves to an adjacent trench. To allow for radial adjustment using the required radial force, the flexible washers  9 ,  12  are used and the canopy ratchet  3 ,  11  is made of a material that allows such movement without breaking. Because these washers  9 ,  12  are flexible, movement in a longitudinal direction of the screw  1  becomes possible. This longitudinal movement along the axis of the screw  1  allows the canopy ratchets  3 ,  11  to be displaced from each other along the longitudinal axis of the screw  1  so that radial adjustment of the two canopy ratchet parts  3 ,  11  can be accomplished, which radial adjustment allows the user to lift and lower the canopy  9  into various discrete positions as shown by the arrows in  FIG. 9 . 
       FIGS. 25 to 30  show various views of the frame lock  6 .  FIG. 26 , in particular, shows a through hole  2605  that is positioned, when the frame lock  6  is disposed within a respective one of the canopy sling rail housings  4 ,  14 , to suspend the frame lock so that the thumb screw  5  can be used to press against the action face  2510  and compress the frame lock  6  against the chair back portion  510 ,  610  and, thereby, lock the canopy sling rail housing  4 ,  14  into place on the chair. 
     In  FIG. 27 , a bottom view of the frame lock  6  reveals a measurement of a height H 5  of the frame lock&#39;s  6  top surface. In an exemplary embodiment, the width H 5  is 9.53 mm.  FIG. 28  is the opposite view of the frame lock  6  in  FIG. 27 , in which a width W 5  of the top surface of the frame lock  6  is 19.05 mm. In the side view of  FIG. 30 , various dimensions are shown. For example, a height H 6  of the pivot portion of the frame lock  6  is 12.78 mm, an outer diameter OD of the circular part of the pivot portion surrounding the through hole  2605  is 10 mm, an inner diameter ID of the through hole  2605  is 6.85 mm, an overall height H 7  of the frame lock  6  is 42.72 mm, and an inner radius of a curvature R at the top of frame lock  6  is 2.38 mm. 
       FIGS. 31 to 34  show various views of one exemplary embodiment of a thumb screw  3105 . Any kind of similarly functioning device can take the place of the thumb screw embodiment shown and described. In the side view of  FIG. 31 , the thumb screw  3105  has a top portion  3110  and a threaded portion  3115 , which is to be threaded into the threaded through hole  1105  for engagement and moving of the frame lock  6 . Although the thumb screw  3105  shown in  FIGS. 31 to 34  is different than, for example, the thumb screw  5  shown in  FIGS. 1 and 2 , the outer thread of whatever device is used (e.g., thumb screw  5 ,  3105 ) must match the thread size of the screw hole  1105  of canopy sling rail housing  4 ,  14 . In an exemplary embodiment, a length L of the threaded portion  3115  is 19.05 mm and an overall length L 2  of both the top portion  3110  and the threaded portion is 31.40 mm. In the enlarged view of  FIG. 32  showing the threaded portion  3115  various dimensions can be seen. For example, a thread width TW can be 0.16 mm and the thread can be ¼-20. The bottom view of  FIG. 33  shows features of the threaded portion  3115 . In an exemplary embodiment, the threaded portion  3115  has a diameter TD of 6.35 mm (¼″) and a bottom surface of the top portion  3110  has a diameter TD 2  of 13 mm.  FIG. 34  is a top plan view of thumb screw  3105 . It is noted that various individual features of the inventive processes and systems may be described only in one exemplary embodiment herein. The particular choice for description herein with regard to a single exemplary embodiment is not to be taken as a limitation that the particular feature is only applicable to the embodiment in which it is described. All features described herein are equally applicable to, additive, or interchangeable with any or all of the other exemplary embodiments described herein and in any combination or grouping or arrangement. In particular, use of a single reference numeral herein to illustrate, define, or describe a particular feature does not mean that the feature cannot be associated or equated to another feature in another drawing figure or description. Further, where two or more reference numerals are used in the figures or in the drawings, this should not be construed as being limited to only those embodiments or features, they are equally applicable to similar features or not a reference numeral is used or another reference numeral is omitted. 
     The foregoing description and accompanying drawings illustrate the principles, exemplary embodiments, and modes of operation of the systems and methods. However, the systems and methods should not be construed as being limited to the particular embodiments discussed above. Additional variations of the embodiments discussed above will be appreciated by those skilled in the art and the above-described embodiments should be regarded as illustrative rather than restrictive. Accordingly, it should be appreciated that variations to those embodiments can be made by those skilled in the art without departing from the scope of the systems and methods as defined by the following claims.