Aspects described herein generally relate to portable chairs. More specifically, aspects relate to portable and collapsible chairs.
Portable chairs are commonly used during events and activities where seating is desirable, but not always provided, such as tailgating, camping, and outdoor barbeques. In most cases, however, such chairs are made with cheap, low-end materials that provide for an uncomfortable seating experience, poor durability, minimal long-term viability, and susceptibility to accelerated deterioration under exposure to environmental phenomena. Accordingly, overall user satisfaction with low-end portable chairs is low and the frequency of replacement is high.
In other cases in which higher quality materials are used in the manufacture of portable chairs, extended longevity may be achievable as compared to low-end offerings. However, such high-end chairs exhibit marginal improvements in comfortability, resistance to weather-induced deterioration, and overall durability, while being offered at a substantially higher price point.
Accordingly, there exists a need for high quality, comfortable, and durable portable chairs.
The following presents a simplified summary of various aspects described herein. This summary is not an extensive overview, and is not intended to identify key or critical elements or to delineate the scope of the claims. The following summary merely presents some concepts in a simplified form as an introductory prelude to the more detailed description provided below.
To overcome limitations in the prior art described above, and to overcome other limitations that will be apparent upon reading and understanding the present specification, aspects described herein are directed to a portable chair and methods of forming a portable chair.
In accordance with one or more embodiments, a portable chair may include a first front leg and a second front leg connected by a front sled and a first back leg and a second back leg connected by a back sled. The front sled may include a first front foot and a second front foot and the back sled may include a first back foot and a second back foot. Each of the feet attached to the front and back sleds may include retention feature holes configured to allow water to drain from the sled/foot interface. The portable chair may further include a seat of a highly-permeable, weave-type construction which may include a seat frame border. The seat frame border may be a rigid thermoplastic over-mold including a plurality of protrusions on an underside portion. The seat frame border may be rigidly attached to the seat via an injection molding process which may form the plurality of protrusions. The portable chair may also include a seat frame including a first terminal end, a second terminal end, a first seat attachment rail, and a second seat attachment rail. The plurality of protrusions on the underside portion of the seat frame border may be configured to removably engage with the first seat attachment rail and the second seat attachment rail. Additionally, the seat frame may include a carrying handle.
In some embodiments, in a state in which the seat frame border of the seat is removably engaged with the first seat attachment rail and the second seat attachment rail, the seat may be configured to slope downward at a front end portion.
In some embodiments, the portable chair may further include a first front leg joinery interface including a tubular protrusion onto which the first front leg may be configured to be inserted and fastened onto via a structural adhesive. The portable chair may also include a first back leg joinery interface including a tubular protrusion onto which the first back leg may be configured to be inserted and fastened onto via a structural adhesive.
In some embodiments, the portable chair may further include a first arm rest that may be configured to be rotatably fastened to the first front leg joinery interface and the first back leg joinery interface via a first front pin.
In some embodiments, the portable table chair may further include a second front leg joinery interface including a tubular protrusion onto which the second front leg may be configured to be inserted and fastened onto via a structural adhesive. The portable chair may also include a second back leg joinery interface including a tubular protrusion onto which the second back leg may be configured to be inserted and fastened onto via a structural adhesive.
In some embodiments, the portable chair may further include a second arm rest that may be configured to be rotatably fastened to the second front leg joinery interface and the second back leg joinery interface via a second front pin.
In some embodiments, the portable chair may further include a back of a highly-permeable, weave-type construction which may include a back frame border. The back frame border may be a rigid thermoplastic over-mold including a plurality of protrusions on a backside portion. The back frame border may be rigidly attached to the back via an injection molding process which may form the plurality of protrusions. The portable chair may also include a back frame including a first terminal end, a second terminal end, a first back attachment rail, and a second back attachment rail. The plurality of protrusions on the backside portion of the back frame border may be configured to removably engage with the first back attachment rail and the second back attachment rail.
In some embodiments, the portable chair may further include a first back joinery interface. The first back joinery interface may include a tubular protrusion onto which the first terminal end of the back frame may be configured to be inserted and fastened onto via structural adhesive. The portable chair may also include a second back joinery interface. The second back joinery interface may include a tubular protrusion onto which the second terminal end of the back frame may be configured to be inserted and fastened onto via structural adhesive.
In some embodiments, the portable chair may further include a first seat joinery interface. The first seat joinery interface may include a tubular protrusion onto which the first terminal end of the seat frame may be configured to be inserted and fastened onto via structural adhesive. The portable chair may also include a second seat joinery interface. The second seat joinery interface may include a tubular protrusion onto which the second terminal end of the seat frame may be configured to be inserted and fastened onto via structural adhesive.
In some embodiments, each of the first front leg, second front leg, front sled, first back leg, second back leg, back sled, seat frame, and back frame may be composed of hydroformed aluminum.
These features, along with many others, are discussed in greater detail below.
A more complete understanding of aspects described herein and the advantages thereof may be acquired by referring to the following description in consideration of the accompanying drawings, in which like reference numbers indicate like features, and wherein:
In the following description of the various examples and components of this disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures and environments in which aspects of the disclosure may be practiced. It is to be understood that other structures and environments may be utilized and that structural and functional modifications may be made from the specifically described structures and methods without departing from the scope of the present disclosure.
Also, while the terms “top,” “bottom,” “front,” “back,” “side,” “rear,” “upward,” “downward,” right, left, and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein as a matter of convenience, e.g., based on the example orientations shown in the figures or the orientation during typical use. Additionally, the term “plurality,” as used herein, indicates any number greater than one, either disjunctively or conjunctively, as necessary, up to an infinite number. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this invention. Also, the reader is advised that the attached drawings are not necessarily drawn to scale.
Overview of Chair
Additionally, chair 100 may be of a symmetric construction wherein components on a left side of chair 100 (e.g., side corresponding to arm rest 150B) are mirrored on a right side (e.g., side corresponding to arm rest 150A). As such, front leg 112B may correspond to front leg 112A, arm rest 150B may correspond to arm rest 150A, and so on. Furthermore, as will be described in further detail below, components of chair 100 such as seat frame 131 and back frame 141, which extend from the left side to the right side of chair 100, may also be of a symmetric construction. For instance, seat frame 131 may include a first seat attachment rail on the left side and second seat attachment rail on the right side, back frame 141 may include a first back attachment rail on the left side and a second back attachment rail on the right side, and so on.
Legs
The portable chair 100 may include two front legs 112A and 112B and two back legs 122A and 122B. The two front legs 112A and 112B and the two back legs 122A and 122B may be cylindrical rods, tubes, and/or shafts and may be made of, for example, aluminum, titanium, stainless steel, scandium, metal alloys, polymers, composites, carbon fiber, and/or wood, such as bamboo. In instances in which aluminum, titanium, stainless steel, scandium, and/or metal alloys are used in the fabrication of the two front legs 112A and 112B and the two back legs 122A and 122B, the metals may be hydroformed and vacuum casted and may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray. Additionally, the metals and alloys used in the fabrication of legs 112A, 112B, 122A, and 122B may be treated through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
The front legs 112A and 112B of portable chair 100 may be connected by front crossbar 114. Front crossbar 114 may be made of the same material as that of front legs 112A and 112B (e.g., aluminum, titanium, stainless steel, scandium, metal alloys, carbon fiber, and/or bamboo) or may be made of a different material than that of front legs 112A and 112B. In instances in which front legs 112A and 112B are made of a metal and front crossbar 114 is also made of a metal, front crossbar 114 may be welded to an inner portion of front legs 112A and 112B. Alternatively, front legs 112A and 112B and front crossbar 114 may be fabricated in a single continuous piece in a molding operation. In such instances, the fabrication may be done through hydroforming. Similarly, in instances in which front legs 112A and 112B are made of carbon fiber and front crossbar 114 is also made of carbon fiber, front legs 112A and 112B and front crossbar 114 may be fabricated in a single continuous piece in a molding operation. However, it is also contemplated that front crossbar 114 may be screwed, bolted, clamped, or otherwise fastened to an inner portion of front legs 112A and 112B, for example, in instances in which front legs 112A and 112B are made of a different material than that of front crossbar 114. Front crossbar 114 may be a low flex and low creep member and may able to support up to a 5001b applied load. While not shown in
In some embodiments, combinations of different materials can be used to form the chair 100. For example, front legs 110A and 110B and front crossbar 114 may be made of a different material than that of back legs 120A and 120B. For example, front legs 110A and 110B and front crossbar 114 may be made of carbon fiber and back legs 120A and 120B may be made of metal. Alternatively, front legs 110A and 110B and back legs 120A and 120B may be made of a first material (e.g., metal) and front crossbar 114 may be made of a second material (e.g., carbon fiber).
In arrangements in which a back crossbar is included, similar combinations of different materials as described above may be used to form the chair 100. For example, front legs 110A and 110B and front crossbar 114 may be made of a different material than that of back legs 120A and 120B and the back crossbar. For example, front legs 110A and 110B and front crossbar 114 may be made of carbon fiber and back legs 120A and 120B and the back crossbar may be made of metal. Alternatively, front legs 110A and 110B and back legs 120A and 120B may be made of a first material (e.g., metal) and front crossbar 114 and the back crossbar may be made of a second material (e.g., carbon fiber).
Sleds and Feet
The two front legs 112A and 112B may be joined by front sled 110, which may be a continuous connecting member. As such, the two front legs 112A and 112B and the front sled 110 may be fabricated in a single continuous piece through, for example, any of the manufacturing methods described herein. Similarly, the two back legs 122A and 122B may be joined by back sled 120 and may be fabricated in a single continuous piece. The front sled 110 and the back sled 120 may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray, as well as through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
Additionally, the front sled 110 may include front foot 111A and front foot 111B, which may be plastic and/or rubber caps at a lowermost and/or bottommost portion of sled 110 to facilitate or improve the frictional engagement with an adjacent contact surface (e.g., floor, ground, etc.). The front feet can include a suitable material or texture to increase the coefficient of friction between the front feet and the surface which the chair is placed. As shown in
As shown in
Also the engagement plugs 117A, 117B can each include a series of holes 123, which provide a channel for moisture located in the frame. The series of holes 123 in combination with the retention feature holes 115A, 115B create an outlet for any moisture that collects inside the frame of the chair. In one example, a single hole or a plurality of holes can be included on the end of the engagement plugs 117A, 117B. In other examples, the engagement plugs 117A, 117B can be formed of a porous material that allows water to flow through the engagement plugs 117A, 117B to allow for water to escape through the retention feature holes 115A, 115B. It is also envisioned that separate holes can be included in the frame and in the front feet 111A, 111B to allow for water or moisture to escape out of the frame of the chair.
In other examples, the front feet 111A and 111B may be plastic and/or rubber coatings applied to front sled 110 and may be included in recessed or notched pockets (not shown) proximate to the two front legs 112A and 112B. Alternatively, the plastic and/or rubber coating may be applied along the length of the front sled 110 at a lowermost and/or bottommost portion and the first and second front engagement faces and may form a continuous front engagement face. In other examples, the plastic and/or rubber coating may be applied intermittently in uniform intervals along the length of the front sled 110 at a lowermost and/or bottommost portion. In such examples, the front feet may form an intermittent front engagement face.
Similar to front sled 110, the back sled 120 may include back foot 121A and back foot 121B, which may be plastic and/or rubber caps at a lowermost and/or bottommost portion to facilitate frictional engagement with an adjacent contact surface (e.g., floor, ground, etc.). Back feet 121A and 121B may be configured to engage with a section of back sled 120 proximate to the back legs 122A and 122B. As such, back foot 121A may be configured to engage with a section of back sled 120 proximate to back leg 122A and back foot 121B may be configured to engage with a section of back sled 120 proximate to back leg 122B.
Similar to front feet 111A and 111B, back feet 121A and 121B may each include an engagement plug and a retention feature hole. The engagement plug and retention feature hole of back feet 121A and 121B may be configured to interface with sled 120 and function in the manner described in regard to front feet 111A and 111B. Also the back feet 121A and 121B can be provided with similar draining features discussed above in relation to front feet 111A and 111B.
Again, in other examples, back feet 121A and 121B may be plastic and/or rubber coatings applied to back sled 120 and may be included in recessed pockets proximate to the two back legs 122A and 122B. Alternatively, the plastic and/or rubber coating may be applied along the length of the back sled 120 at a lowermost and/or bottommost portion and the first and second back engagement faces and may form a continuous back engagement face. In other examples, the plastic and/or rubber coating may be applied intermittently in uniform intervals along the length of the back sled 120 at a lowermost and/or bottommost portion. In such examples, the first and second back engagement faces may form an intermittent back engagement face.
Joinery Interfaces
As shown in
Front leg 112B may be configured to engage with front leg joinery interface 116B in the manner described in regard to front leg 112A and front leg joinery interface 116A (e.g., adhered and/or welded).
Similarly, at an upper and/or top proximal end portion, back leg 122A may intersect with back leg joinery interface 126A. In particular, back leg joinery interface 126A may include a tubular termination onto which back leg 122A may be configured to be inserted. Before, during, or after insertion, a binding agent and/or structural adhesive as discussed herein may be applied to the tubular termination of back leg joinery interface 126A and/or upper and/or top proximal end portion of back leg 122A to secure back leg 122A to the back leg joinery interface 126A. Additionally and/or alternatively, back leg 122A may be welded onto back leg joinery interface 126A. Back leg 122B may be configured to engage with back leg joinery interface 126B in the manner described in regard to back leg 122A and back leg joinery interface 126A (e.g., adhered and/or welded). Nevertheless, it is also contemplated that the joints discussed herein could be formed by mechanical fastening techniques, such as, friction fits, threads, ball and sockets, bayonet connections, and the like.
In certain arrangements, at an upper and/or top proximal end portion of front leg 112A, the front leg 112A may be bent in a rearward direction at an obtuse angle and may terminate at front leg joinery interface 116A. In some instances, front leg joinery interface 116A may be a continuous upper and/or top terminal end portion of front leg 110A and may be made of the same material as that of front leg 112A (e.g., aluminum, titanium, scandium, metal alloys, carbon fiber, and/or bamboo).
Back leg 122A may extend linearly to an upper and/or top proximal end portion and may terminate at back leg joinery interface 126A. Back leg joinery interface 126A may be a continuous upper and/or top terminal end portion of back leg 122A and may be made of the same material as that of back leg 122A (e.g., aluminum, titanium, scandium, metal alloys, carbon fiber, and/or bamboo).
Front leg joinery interfaces 116A, 116B may be configured to join, interface, and/or otherwise connect with back leg joinery interfaces 126A, 126B. In one example, the front joinery interfaces 116A, 116B and the back joinery interfaces 126A, 126B are configured to pivot about pins 128A, 128B such that the front legs 112A, 112B are configured to pivot relative to the back legs 122A, 122B.
Seat and Seat Frame
Portable chair 100 may include seat 130, which may be removably attached to seat frame 131. Front legs 112A and 112B may be configured to be rotatably joined and/or fastened to front leg attachment portions 170A and 170B, respectively, of seat frame 131 via pins 171A and 171B.
Seat frame 131 may be a cylindrical rod, tube, shaft, and/or extrusion I-beam and may be made of aluminum, titanium, stainless steel, scandium, metal alloys, carbon fiber, and/or bamboo. In instances in which aluminum, titanium, stainless steel, scandium, and/or metal alloys are used in the fabrication of seat frame 131, the material may be hydroformed and vacuum casted and may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray. Additionally, the metals used in the fabrication of seat frame 131 may be treated through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
Seat frame 131 may include front leg attachment portions 170A and 170B, which may be configured to facilitate the rotatable attachment of seat frame 131 to front legs 112A and 112B, respectively, by way of pins 171A and 171B. Additionally, seat frame 131 may intersect with seat joinery interfaces 133A and 133B. In particular, seat joinery interfaces 133A and 133B may include tubular terminations onto which seat frame 131 may be configured to be inserted. Before, during, or after insertion, a binding agent and/or structural adhesive as discussed herein may be applied to the tubular terminations of seat joinery interfaces 133A and 133B and/or terminal ends of seat frame 131 to secure the seat frame 131 to the seat joinery interfaces 133A and 133B.
As shown in
Alternatively, carrying handle 172 may not form a continuous piece with seat frame 131 and, as such, may be a separate component. In such instances, carrying handle 172 may be made of either the same material as that of seat frame 131, or may be made of a different material. In either event, carrying handle 172 may be attached to seat frame 131 via adhesion, welding, mechanical fastening (e.g., nut and bolt), and the like.
First Embodiment of Seat/Seat Frame Engagement
According to a first embodiment of the seat/seat frame engagement and as shown in
Furthermore, seat frame 131 may also include seat attachment rail 172B. Seat attachment rail 172B may be positioned on an inner face of a side portion of seat frame 131 proximate to arm rest 150B, front leg 112B, and the like. Seat attachment rail 172B may be made of the same material as that of seat frame 131 (e.g., aluminum, titanium, stainless steel, scandium, metal alloys, carbon fiber, and/or bamboo). As such, seat attachment rail 172B may be manufactured as a continuous piece of seat frame 131. Thus, in instances in which aluminum, titanium, stainless steel, scandium, and/or metal alloys are used in the fabrication of seat frame 131 and seat attachment rail 172B, the material may be hydroformed and vacuum casted and into seat frame 131 and seat attachment rail 172B and may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray. Additionally, the metals used in the fabrication of seat frame 131 and seat attachment rail 172B may be treated through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
Alternatively, seat attachment rail 172B may not form a continuous piece with seat frame 131 and, as such, may be a separate component. In such instances, seat attachment rail 172B may be made of either the same material as that of seat frame 131, or may be made of a different material. In either event, seat attachment rail 172B may be attached to seat frame 131 via adhesion, welding, mechanical fastening (e.g., nut and bolt), and the like.
Seat attachment rail 172B may include rib engagement channels and a plurality of side attachment holes. For example, as shown in
Seat frame 131 may also include seat attachment rail 172A. Seat attachment rail 172A may be positioned on an inner face of a side portion of seat frame 131 proximate to arm rest 150A, front leg 112A, and the like. Seat attachment rail 172A may be made of the same material as that of seat frame 131 (e.g., aluminum, titanium, stainless steel, scandium, metal alloys, carbon fiber, and/or bamboo). As such, seat attachment rail 172A may be manufactured as a continuous piece of seat frame 131. Thus, in instances in which aluminum, titanium, stainless steel, scandium, and/or metal alloys are used in the fabrication of seat frame 131 and seat attachment rail 172A, the material may be hydroformed and vacuum casted and into seat frame 131 and seat attachment rail 172A and may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray. Additionally, the metals used in the fabrication of seat frame 131 and seat attachment rail 172A may be treated through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
Alternatively, seat attachment rail 172A may not form a continuous piece with seat frame 131 and, as such, may be a separate component. In such instances, seat attachment rail 172A may be made of either the same material as that of seat frame 131, or may be made of a different material. In either event, seat attachment rail 172A may be attached to seat frame 131 via adhesion, welding, mechanical fastening (e.g., nut and bolt), and the like.
Seat attachment rail 172A may include rib engagement channels and a plurality of side attachment holes. For example, as shown in
Referring to
The material used in the fabrication of seat 130 may be manufactured in a highly-permeable, weave-type and/or mesh-like construction and, as such, may provide for increased load capacity and user comfort. The perimeter of the weave-type and/or mesh-like fabric construction of seat 130 may be configured to interface with seat frame border 183, which may be a rigid thermoplastic over-mold. In forming the interface between seat 130 and seat frame border 183, seat frame border 183 may be over-molded onto seat 130 through a method of local injection molding. The process may form a thermoplastic feature (e.g., seat frame border 183 and components included therein) through the fabric weave along the perimeter of seat 130. After the method of local injection molding is completed, the weave-type and/or mesh-like fabric construction of seat 130 may be taut and the seat frame border 183 may be rigidly attached to seat 130. Such an attachment method may eliminate stitching in the seat fabric and, by extension, offer advantages including repeatability, durability, dimensional accuracy, frame attachment flexibility and improved aesthetics.
Seat frame border 183 may include a plurality of protrusions of various types configured to aide and/or facilitate the engagement between seat 130 and seat frame 131. In particular, seat frame border 183 may include front attachment clips 187, 187A, and 187B, seat frame corner engagement faces 189A and 189B, side attachment screw interfaces 184A and 184B, side ribs 185A and 185B, flanges 191A and 191B, and back bar groove 196.
Seat 130 may be configured to be removably attached and/or engaged with seat frame 131. In forming the removable attachment and/or engagement, the various protrusions of seat frame border 183 of seat 130 may be configured to removably connect, insert, and/or interface with specific aspects of front handle 172 and seat attachment rails 172A and 172B. For example, front attachment clips 187, 187A, and 187B and side attachment screw interfaces 184A and 184B of seat frame border 183 may be respectively configured to be removably connected, inserted, and/or interfaced with front attachment holes 177, 177A, and 177B of carrying handle 172 and side attachment holes 174A and 174B of seat attachment rails 172A and 172B. Additionally, seat frame corner engagement faces 189A and 189B and back bar groove 196 of seat frame border 183 of seat 130 may be respectively configured to removably interface with seat frame corners 179A and 179B of seat frame 131 and back bar 197.
Further, side ribs 185A and 185B and flanges 191A and 191B of seat frame border 183 of seat 130 may be configured to removably interface with rib engagement channels 175A and 175B of seat attachment rails 172A and 172B. Side ribs 185A, 185B may be load carrying ribs and may be configured to interface with rib engagement channels 175A, 175B of seat attachment rails 172A, 172B. The side ribs 185A, 185B may extend from a bottom surface of a right and left side of the seat frame border 183 and flanges 191A, 191B may be located on each side of the seat frame border 183. The series of flanges 191A, 191B can extend perpendicular to a bottom surface of the seat frame border 183 and an outer face of the side ribs 175A, 175B. The side ribs 185A, 185B and the series of flanges 191A, 191B can prevent the side ribs from twisting when the seat is loaded. As such, the side ribs 185A, 185B and the flanges 191A, 191B may relieve structural loading from the side attachment screw interfaces 184A, 184B when seat 130 and seat frame 131 are in either of an attached or detached state and may also provide a complimentary force to that provided by side attachment screw interfaces 184A, 184B in a state in which seat 130 is attached to seat frame 131. In an attached stated, the side ribs 185A, 185B may traverse the length of seat attachment rails 172A, 172B and the flanges 191A, 191B may span the horizontal area of the seat attachment rails 172A, 172B. The number of flanges 191A, 191B can be selected based on the desired threshold loading of the chair, the thickness of each flange, and the weight distribution of the chair.
Referring in greater detail to
In the manner described above, seat 130, by way of seat frame border 183 and the plurality of protrusions formed thereto, may be configured to engage with the side attachment rails 172A and 172B and carrying handle 172 of seat frame 131. In some instances, the seat frame border 183 may be secured to seat frame 131 by locating a first end (e.g., front portion) of seat frame border 183 into a first end (e.g., front portion) of the seat frame 131 and rolling and/or flexing the seat frame border 183 from the first end of the seat frame 131 to a second end (e.g., back portion) of the seat frame 131. The rolling and/or flexing of the seat frame border 183 from the first end of the seat frame 131 to the second end may cause the plurality of protrusions of the seat frame border 183 to align with the plurality of slots in the seat attachment rails and to removeably attach the seat frame border 183 on the seat frame 131.
Alternatively, seat frame border 183 may be secured to seat frame 131 by inserting the rearmost side attachment screw interface 184B on the left side of the seat frame border 183 into the rearmost side attachment hole 174B of the left side attachment rail 172B and inserting the rearmost side attachment screw interface 184A on the right side of the seat frame border 183 into the rearmost side attachment hole 174A of the right side attachment rail 172A. Next, the first, second, and third middle side attachment screw interfaces 184B on the left side of the seat frame border 183 may be inserted into the first, second, and third middle side attachment holes 174B of the left side attachment rail 172B. Similarly, the first, second, and third middle side attachment screw interfaces 184A on the right side of the seat frame border 183 may be inserted into the first, second, and third middle side attachment holes 174A of the right side attachment rail 172A. Subsequently, the frontmost side attachment screw interface 184B on the left side of the seat frame border 183 may be inserted into the frontmost side attachment hole 174B of the left side attachment rail 172B and the frontmost side attachment screw interface 184A on the right side of the seat frame border 183 may be inserted into the frontmost side attachment hole 174A of the right side attachment rail 172A. Then, the seat 130, by way of the seat frame border 183, may be rolled and/or flexed at a front portion of the seat 130 in a downward direction to align and insert the front attachment clips 187, 187A, and 187B of the seat frame border 183 with the front attachment holes 177, 177A, and 177B of the carrying handle 172 and the front attachment clip on the right side of the seat frame border 183 with the front attachment hole on the right end portion of the carrying handle 172. Next, the screw access panels 195A and 195B may be removed from the side attachment rails 172A and 172B, and each of the screws 194A and 194B may be threaded into the respective side attachment screw interfaces 184A and 184B. After insertion, the screw access panels 195A and 195B may be reattached to side attachment rails 172A and 172B.
During the assembly of the seat frame border 183 to the seat frame 131, the seat frame border 183 can be rolled from a rear end to a front end. While such steps are described in a specific order from rear to front, the steps need not be performed in such an order and may be performed in any specific order.
Furthermore, in the state in which seat 130 is attached to seat frame 131, as shown in
Second Embodiment of Seat/Seat Frame Engagement
According to a second embodiment of the seat/seat frame engagement and as shown in
Returning to
Alternatively, seat attachment rail 172B may not form a continuous piece with seat frame 131 and, as such, may be a separate component. In such instances, seat attachment rail 172B may be made of either the same material as that of seat frame 131, or may be made of a different material. In either event, seat attachment rail 172B may be attached to seat frame 131 via adhesion, welding, mechanical fastening (e.g., nut and bolt), and the like.
Seat attachment rail 172B may include side openings, rib engagement channels, and a plurality of side attachment holes. For example, as shown in
Referring to
Seat 130 may be configured to be removably attached and/or engaged with seat frame 131. In forming the removable attachment and/or engagement, the various protrusions of seat frame border 183 of seat 130 may be configured to removably connect and/or interface with specific aspects of front handle 172 and seat attachment rail 172B. For example, front attachment clip 187B and side attachment clips 184B of seat frame border 183 may be configured, respectively, to be removably connected and/or interfaced with front attachment hole 177B of carrying handle 172 and side attachment holes 174B of seat attachment rail 172B of seat frame 131. Further, carrying handle side cover 188B and seat attachment rail side covers 186B of seat frame border 183 of seat 130 may be configured, respectively, to removably interface with side openings 178B of carrying handle 172 and side openings 176B of seat attachment rail 172B of seat frame 131. Additionally, seat frame corner engagement face 189B and side ribs 185B of seat frame border 183 of seat 130 may be configured, respectively, to removably interface with seat frame corner 179B of seat frame 131 and rib engagement channel 175B of seat attachment rail 172B. The aforementioned connections and/or interfacings may occur on the left side of chair 100. In a state in which seat 130 is removably attached and/or engaged with seat frame 131, such connections and/or interfacings may be proximate to front leg 112B, arm rest 150B, and the like.
Similarly, the front attachment clip, carrying handle side cover, seat frame corner engagement face, seat attachment rail side covers, side attachment clips, and side ribs on the right side of the seat frame border 183 of seat 130 may be configured to removably connect and/or interface with the front seat attachment hole and side opening on the right side of carrying handle 172, the seat frame corner on the right side of seat frame 131, and the side openings, rib engagement channel, and plurality of side attachment holes of the seat attachment rail on the right side of seat frame 131 in the manner described above.
Referring in greater detail to
Side ribs 185A, 185B may be load carrying ribs and may be configured to interface with rib engagement channels 175A, 175B of seat attachment rails 172A, 172B. The side ribs 185A, 185B may extend from a bottom surface of a right and left side of the seat frame border 183 and a series of flanges 191 may be located on each side of the seat frame border 183. The series of flanges 191 can extend perpendicular to a bottom surface of the seat frame border 183. The series of flanges 191 and the bottom surface of the seat frame border 183 can prevent the side ribs from twisting when the seat is loaded. As such, the side ribs 185A, 185B and the flanges 191 may relieve structural loading from the side attachment clips 184A, 184B and the other side attachment clips during use when seat 130 and seat frame 131 are in either of an attached or detached state and may also provide a complimentary force to that provided by side attachment clips 184A, 184B in a state in which seat 130 is attached to seat frame 131. The number of side ribs 185 can be selected based on the desired threshold loading of the chair, the thickness of each side rib, and the weight distribution of the chair. Additionally, it is also contemplated that the side ribs can be formed of an integral extending rib running the length of the channel of the attachment rails 175A, 175B.
In the manner described above, seat 130, by way of seat frame border 183 and the plurality of protrusions formed thereto, may be configured to engage with the side attachment rails and carrying handle 172 of seat frame 131. In particular, the seat frame border 183 may be secured to seat frame 131 by locating a first end (e.g., front portion) of seat frame border 183 into a first end (e.g., front portion) of the seat frame 131 and rolling and/or flexing the seat frame border 183 from the first end of the seat frame 131 to a second end (e.g., back portion) of the seat frame 131. The rolling and/or flexing of the seat frame border 183 from the first end of the seat frame 131 to the second end may cause the plurality of protrusions of the seat frame border 183 to align with the plurality of slots in the seat attachment rails and to removeably attach the seat frame border 183 on the seat frame 131.
Alternatively, seat frame border 183 may be secured to seat frame 131 by inserting the rearmost side attachment clip 186B on the left side of the seat frame border 183 into the rearmost side attachment hole 176B of the left side attachment rail 172B and inserting the rearmost side attachment clip on the right side of the seat frame border 183 into the rearmost side attachment hole of the right side attachment rail. Next, the first middle side attachment clip 186B and the second middle side attachment clip 186B on the left side of the seat frame border 183 may be inserted into the first middle side attachment hole 176B and the second middle side attachment hole 176B of the left side attachment rail 172B and the first middle side attachment clip and the second middle side attachment clip on the right side of the seat frame border 183 may be inserted into the first middle side attachment hole and the second middle side attachment hole of the right side attachment rail. Subsequently, the frontmost side attachment clip 186B on the left side of the seat frame border 183 may be inserted into the frontmost side attachment hole 176B of the left side attachment rail 176B and the frontmost side attachment clip on the right side of the seat frame border 183 may be inserted into the frontmost side attachment hole of the right side attachment rail. Then, the seat 130, by way of the seat frame border 183, may be rolled and/or flexed at a front portion of the seat 130 in a downward direction to align the front attachment clip 187B on the left side of the seat frame border 183 with the front attachment hole 177B on the left end portion of the carrying handle 172 and the front attachment clip on the right side of the seat frame border 183 with the front attachment hole on the right end portion of the carrying handle 183. Next, the front attachment clip 187B on the left side of the seat frame border 183 may be inserted into the front attachment hole 177B on the left end portion of the carrying handle 172 and the front attachment clip on the right side of the seat frame border 183 may be inserted into the front attachment hole on the right end portion of the carrying handle 172.
During the assembly of the seat frame border 183 with the seat frame 131, the seat frame border 183 can be rolled from a rear end to a front end. While such steps are described in a specific order from rear to front, the steps need not be performed in such an order and may be performed in any specific order.
Back and Back Frame
In conjunction with seat 130, portable chair 100 may include back 140, which may be removably attached to back frame 141. Back frame 141 may be a cylindrical rod, tube, shaft, and/or extrusion I-beam and may be made of aluminum, titanium, stainless steel, scandium, metal alloys, carbon fiber, and/or bamboo. In instances in which aluminum, titanium, stainless steel, scandium, and/or metal alloys are used in the fabrication of back frame 141, the material may be hydroformed and vacuum casted and may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray. Additionally, the metals used in the fabrication of back frame 141 may be treated through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
Back frame 141 may include arm rest attachment portions, which may be configured to facilitate the rotatable attachment of back frame 141 to arm rests 150A and 150B by way of pins including pin 157B. Additionally, back frame 141 may intersect with back joinery interfaces 143A and 143B. In particular, back joinery interfaces 143A and 143B may include tubular terminations onto which back frame 141 may be configured to be inserted. Before, during, or after insertion, a binding agent and/or structural adhesive may be applied to the tubular terminations of back joinery interfaces 143A and 143B and/or terminal ends of back frame 141 to secure the back frame 141 to the back joinery interfaces 143A and 143B.
In a manner similar to that described above in regard to seat frame 131, back frame 141 may include a carrying handle and one or more back attachment rails. For example, as shown in
Furthermore, back frame 141 may also include back attachment rail 272B. Back attachment rail 272B may be positioned on an inner face of a side portion of back frame 141 proximate to arm rest 150B, front leg 112B, and the like. Back attachment rail 272B may be made of the same material as that of back frame 141 (e.g., aluminum, titanium, stainless steel, scandium, metal alloys, carbon fiber, and/or bamboo). As such, back attachment rail 272B may be manufactured as a continuous piece of back frame 141. Thus, in instances in which aluminum, titanium, stainless steel, scandium, and/or metal alloys are used in the fabrication of back frame 141 and back attachment rail 272B, the material may be hydroformed and vacuum casted and into back frame 141 and back attachment rail 272B and may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray. Additionally, the metals used in the fabrication of back frame 141 and back attachment rail 272B may be treated through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
Alternatively, back attachment rail 272B may not form a continuous piece with back frame 141 and, as such, may be a separate component. In such instances, back attachment rail 272B may be made of either the same material as that of back frame 141, or may be made of a different material. In either event, back attachment rail 272B may be attached to back frame 141 via adhesion, welding, mechanical fastening (e.g., nut and bolt), and the like.
Back attachment rail 272B may include rib engagement channels and a plurality of side attachment holes. For example, as shown in
Back frame 141 may also include back attachment rail 272A. Back attachment rail 272A may be positioned on an inner face of a side portion of back frame 141 proximate to arm rest 150A, front leg 112A, and the like. Back attachment rail 272A may be made of the same material as that of back frame 141 (e.g., aluminum, titanium, stainless steel, scandium, metal alloys, carbon fiber, and/or bamboo). As such, back attachment rail 272A may be manufactured as a continuous piece of back frame 141. Thus, in instances in which aluminum, titanium, stainless steel, scandium, and/or metal alloys are used in the fabrication of back frame 141 and back attachment rail 272A, the material may be hydroformed and vacuum casted and into back frame 141 and back attachment rail 272A and may be treated through anodizing, plating, painting, powder coating, and/or the application of enamel in order to prevent corrosion induced by environmental conditions such as salt spray. Additionally, the metals used in the fabrication of back frame 141 and back attachment rail 272A may be treated through annealing, case hardening, precipitation strengthening, tempering, normalizing, and/or quenching in order to increase hardness, toughness, and tensile and shear strength.
Alternatively, back attachment rail 272A may not form a continuous piece with back frame 141 and, as such, may be a separate component. In such instances, back attachment rail 272A may be made of either the same material as that of back frame 141, or may be made of a different material. In either event, back attachment rail 272A may be attached to back frame 141 via adhesion, welding, mechanical fastening (e.g., nut and bolt), and the like.
Back attachment rail 272A may include rib engagement channels and a plurality of side attachment holes. For example, as shown in
Referring to
In certain instances, back 140 may be composed of a similar material to that of seat 130. However, in some cases, the material used in the manufacture of back 140 may be different than that used in the manufacture of seat 130. For example, back 140 may be made of a first material and/or combination of materials, and seat 130 may be made of a second material and/or combination of materials different than the first material and/or combination of materials.
The material used in the fabrication of back 140 may be manufactured in a highly-permeable, weave-type and/or mesh-like construction and, as such, may provide for increased load capacity and user comfort. The perimeter of the weave-type and/or mesh-like fabric construction of back 140 may be configured to interface with back frame border 193, which may be a rigid thermoplastic over-mold. In forming the interface between back 140 and back frame border 193, back frame border 193 may be over-molded onto back 140 through a method of local injection molding. The process may form a thermoplastic feature (e.g., back frame border 193 and components included therein) through the fabric weave along the perimeter of back 140. After the method of local injection molding is completed, the weave-type and/or mesh-like fabric construction of back 140 may be taut and the back frame border 193 may be rigidly attached to back 140. Such an attachment method may eliminate stitching in the seat fabric and, by extension, offer advantages including repeatability, durability, dimensional accuracy, frame attachment flexibility and improved aesthetics.
Back frame border 193 may include a plurality of protrusions of various types configured to aide and/or facilitate the engagement between back 140 and back frame 141. In particular, back frame border 193 may include top attachment clips 287, 287A, and 287B, back frame corner engagement faces 289A and 289B, side attachment screw interfaces 284A and 284B, side ribs 285A and 285B, and flanges 291A and 291B.
Back 140 may be configured to be removably attached and/or engaged with seat frame 141. In forming the removable attachment and/or engagement, the various protrusions of back frame border 193 of back 140 may be configured to removably connect, insert, and/or interface with specific aspects of top handle 272 and back attachment rails 272A and 272B. For example, top attachment clips 287, 287A, and 287B and side attachment screw interfaces 284A and 284B of back at frame border 193 may be respectively configured to be removably connected, inserted, and/or interfaced with top attachment holes 277, 277A, and 277B of carrying handle 272 and side attachment holes 274A and 274B of back attachment rails 272A and 272B. Additionally, back frame corner engagement faces 289A and 289B of back frame border 283 of back 140 may be respectively configured to removably interface with back frame corners 279A and 279B of back frame 141.
Further, side ribs 285A and 285B and flanges 291A and 291B of back frame border 193 of back 140 may be configured to removably interface with rib engagement channels 275A and 275B of back attachment rails 272A and 272B. Side ribs 285A, 285B may be load carrying ribs and may be configured to interface with rib engagement channels 275A, 275B of back attachment rails 272A, 272B. The side ribs 285A, 285B may extend from a bottom surface of a right and left side of the back frame border 193 and flanges 291A, 291B may be located on each side of the back frame border 193. The series of flanges 291A, 291B can extend perpendicular to a bottom surface of the back frame border 193 and an outer face of the side ribs 275A, 275B. The side ribs 285A, 285B and the series of flanges 291A, 291B can prevent the side ribs from twisting when the back is loaded. As such, the side ribs 285A, 285B and the flanges 291A, 291B may relieve structural loading from the side attachment screw interfaces 284A, 284B when back 140 and back frame 141 are in either of an attached or detached state and may also provide a complimentary force to that provided by side attachment screw interfaces 284A, 284B in a state in which back 140 is attached to back frame 141. In an attached stated, the side ribs 285A, 285B may traverse the length of back attachment rails 272A, 272B and the flanges 291A, 291B may span the horizontal area of the back attachment rails 272A, 272B. The number of flanges 291A, 291B can be selected based on the desired threshold loading of the chair, the thickness of each flange, and the weight distribution of the chair.
Referring to
In the manner described above, back 140, by way of back frame border 193 and the plurality of protrusions formed thereto, may be configured to engage with the side attachment rails 272A and 272B and carrying handle 272 of back frame 141. In some instances, the back frame border 183 may be secured to back frame 141 by locating a first end (e.g., top portion) of back frame border 193 into a first end (e.g., top portion) of the back frame 141 and rolling and/or flexing the back frame border 193 from the first end of the back frame 141 to a second end (e.g., bottom portion) of the back frame 141. The rolling and/or flexing of the back frame border 193 from the first end of the back frame 141 to the second end may cause the plurality of protrusions of the back frame border 193 to align with the plurality of slots in the back attachment rails and to removeably attach the back frame border 193 on the back frame 141.
Alternatively, back frame border 193 may be secured to back frame 141 by inserting the bottommost side attachment screw interface 284B on the left side of the back frame border 193 into the bottommost side attachment hole 274B of the left side attachment rail 272B and inserting the bottommost side attachment screw interface 284A on the right side of the back frame border 193 into the bottommost side attachment hole 274A of the right side attachment rail 272A. Next, the first, second, and third middle side attachment screw interfaces 284B on the left side of the back frame border 193 may be inserted into the first, second, and third middle side attachment holes 274B of the left side attachment rail 272B. Similarly, the first, second, and third middle side attachment screw interfaces 284A on the right side of the back frame border 193 may be inserted into the first, second, and third middle side attachment holes 274A of the right side attachment rail 272A. Subsequently, the topmost side attachment screw interface 284B on the left side of the back frame border 193 may be inserted into the topmost side attachment hole 274B of the left side attachment rail 272B and the topmost side attachment screw interface 284A on the right side of the back frame border 193 may be inserted into the topmost side attachment hole 274A of the right side attachment rail 272A. Then, the back 140, by way of the back frame border 193, may be rolled and/or flexed at a top portion of the back 140 in a backward direction to align and insert the top attachment clips 287, 287A, and 287B of the back frame border 193 with the top attachment holes 277, 277A, and 277B of the carrying handle 272 and the top attachment clip on the right side of the back frame border 193 with the top attachment hole on the right end portion of the carrying handle 272. Next, the screw access panels 295A and 295B may be removed from the side attachment rails 272A and 272B, and each of the screws 294A and 294B may be threaded into the respective side attachment screw interfaces 284A and 284B. After insertion, the screw access panels 295A and 295B may be reattached to side attachment rails 272A and 272B.
In some instances, back frame border 193 may have a plurality of back attachment clips in the manner described above in regard to seat frame border 183 as opposed to the back attachment screw interfaces 284A. In such instances, the side attachment clip may be configured to be inserted through side attachment hole 274B during the formation of the removable attachment between back 140 and back frame 141. The side attachment clip may have an extended rectangular construct with a half-arrow shaped distal end, which may allow for rotational pliability during insertion and removal, as well as for vertical force distribution during engagement. For instance, during insertion into side attachment hole 274B, a rotational force may be applied to the outer face of the half-arrow terminal end of the side attachment clip. In response to the rotational force, the side attachment clip may be configured to rotatably displace and allow for the insertion of side attachment clip into side attachment hole 274B. After insertion has been completed and the rotational force has been removed, the side attachment clip may be configured to return to a static position and an upper and/or overhang face of the half-arrow portion of side attachment clip may be configured to interface with a bottommost face of rib engagement channel 275B of back attachment rail 272B. Such an interface provided by side attachment clip, in combination with the other side and top attachment clips, may provide for the removable attachment of back 140 to back 141.
In either instance, during the assembly of the back frame border 193 to the back frame 141, the back frame border 193 can be rolled from a bottom end to a top end. While such steps are described in a specific order from bottom to top, the steps need not be performed in such an order and may be performed in any specific order. Furthermore, in the state in which back 140 is attached to back frame 141, as shown in
Arm Rests
Referring back to
Arm rests 150A and 150B may be made of plastic, rubber, metal, carbon fiber, and the like and may be configured to support up to a 5001b load in one example. In some instances arm rests 150A and 150B may serve as buoyancy aides in preventing the submersion of portable chair 100. Similarly, in one example, arm rests 150A and 150B may be fabricated through a gas-assisted injection molding process to create a hollow cavity in the interior of the arm rests. Such a hollow cavity may serve as a buoyancy aide for chair 100.
Foldability
Referring to
For further example, chair 100 may be configured to open from a folded portable arrangement into an unfolded seating arrangement. In the folded portable arrangement, the front legs 112A and 112B may be substantially parallel to back legs 122A and 122B and seat 130 may be substantially parallel to back 140. One or more detents may be included in the attachment interfaces between the seat joinery interfaces 133A and 133B of seat frame 131. Additionally and/or alternatively, the one or more detents may be included in the attachment interface between front leg attachment portions 170A and 170B and front legs 112A and 112B via pins 171A and 171B.
The one or more detents may provide resistance against the opening displacement of the front legs 112A and 112B and seat 130 away from back legs 122A and 122B and back 140 and, as such, may function to lock and/or maintain the chair in the folded portable arrangement. In addition to the resistance, the one or more detents may also provide intentional audible feedback to a user of chair 100 indicating that the chair 100 is in a locked position when an attempt is made to open the chair 100 from the folded portable arrangement to the unfolded seating arrangement.
While in the folded portable arrangement, when an opening force is applied to the chair 100 that is greater than the locking force and/or resistance provided by the one or more detents, chair 100 may become openable and the front legs 112A and 112B and seat 130 may rotatably displace from back legs 122A and 122B and back 140. At such a point, the chair 100 may be in an unlocked and transitory state between the folded portable arrangement and the unfolded seating arrangement. Upon the continued application of the opening force, the chair 100 may achieve a maximum opening displacement and arrive at the unfolded seating arrangement. At the unfolded seating arrangement, the front legs 112A and 112B and seat 130 may be angled relative to back legs 122A and 122B and back 140.
Additionally, the one or more detents included in the attachment interface between front leg attachment portions 170A and 170B and front legs 112A and 112B via pins 171A and 171B may provide resistance against the closing displacement of the front legs 112A and 112B and seat 130 towards back legs 122A and 122B and back 140. As such, the one or more detents may function to lock and/or maintain the chair 100 in the unfolded seating arrangement. In addition to the resistance, the one or more detents may also provide intentional audible feedback to a user of chair 100 indicating that the chair 100 is in a locked position when an attempt is made to close the chair 100 from the unfolded seating arrangement to the folded portable arrangement. While in the unfolded seating arrangement, when a closing force is applied to the chair 100 that is greater than the locking force and/or resistance provided by the one or more detents, the chair 100 may become closeable and the front legs 112A and 112B and seat 130 may rotatably displace towards back legs 122A and 122B and back 140.
Cup Holders
On the front leg 112A proximate to the intersection with the front leg attachment portion 170A of seat frame 131, which will be discussed in further detail below, chair 100 may include a cup holder (not shown). In some instances, the cup holder may be rigidly attached to the first front leg 112A, while in other instances the cup holder may be included in a detachably attachable accessory.
In either instance (e.g., rigidly attached or detachably attachable accessory) the cup holder may be configured to secure a cup, bottle, thermos, glass, can, mug, or drink container of any of a plurality of sizes. The cup holder may be a vacuum insulated cup holder or an aerogel cup holder and may be configured to maintain a temperature lower or higher than that of the ambient surrounding environment. The cup holder may be configured to cool an inserted drink container and/or maintain and prolong a period of below-ambient temperature of an inserted drink container. Additionally and/or alternatively, the cup holder may be configured to receive an ice pack and/or natural ice insert in order to aide in cooling of an inserted drink container and/or prolong a period of below-ambient temperature.
In one example, on the front leg 112A proximate to the intersection with the front leg attachment portion 170A of seat frame 131, chair 100 may include an accessory attachment interface (not shown). The accessory attachment interface may be fabricated into front leg 112A and may be configured to receive YETI® Tundra accessories including YETI® Beverage Holder, YETI® Rod Holster, YETI® Molle Zinger, and the like. Additionally, the accessory attachment interface may be configured to receive a waterproof storage compartment, anti-varmint device, fish finder, and the like.
Additionally and/or alternatively, on the front leg 112B proximate to the intersection with the front leg attachment portion 170B of seat frame 131, chair 100 may include a rigidly attached cup holder, a detachably attachable cup holder accessory, and/or an accessory attachment interface configured to receive YETI® Tundra accessories and additional accessories as stated above.
Number | Name | Date | Kind |
---|---|---|---|
2638970 | Harber | May 1953 | A |
D220908 | Smith | Jun 1971 | S |
3695702 | Ingellis | Oct 1972 | A |
3719389 | Burton et al. | Mar 1973 | A |
4119286 | Barril | Oct 1978 | A |
4234226 | Colby | Nov 1980 | A |
4382648 | Propst et al. | May 1983 | A |
4469377 | O'Rourke | Sep 1984 | A |
4513347 | Wilcox et al. | Apr 1985 | A |
4535923 | Manke | Aug 1985 | A |
4613185 | Marchesini | Sep 1986 | A |
4652050 | Stevens | Mar 1987 | A |
4685255 | Kelley | Aug 1987 | A |
4832152 | Schuelke et al. | May 1989 | A |
4842335 | Wunderlich | Jun 1989 | A |
4878642 | Kirby, Jr. | Nov 1989 | A |
4914873 | Newhouse | Apr 1990 | A |
5058347 | Schuelke et al. | Oct 1991 | A |
5129202 | Payne et al. | Jul 1992 | A |
5142734 | Looman et al. | Sep 1992 | A |
5174086 | Payne et al. | Dec 1992 | A |
D333387 | Guay | Feb 1993 | S |
5211687 | Loser | May 1993 | A |
5423151 | Caro et al. | Jun 1995 | A |
5564779 | Tolbert et al. | Oct 1996 | A |
D378476 | Spaeth | Mar 1997 | S |
5666888 | Dame et al. | Sep 1997 | A |
5678890 | Tenbroeck | Oct 1997 | A |
5711575 | Hand et al. | Jan 1998 | A |
5762403 | Robinson | Jun 1998 | A |
5911478 | Goodman | Jun 1999 | A |
D417561 | Liu | Dec 1999 | S |
6000752 | Shyr | Dec 1999 | A |
6035901 | Stumpf et al. | Mar 2000 | A |
6059368 | Stumpf et al. | May 2000 | A |
6062648 | Adler | May 2000 | A |
D429969 | Frankel | Aug 2000 | S |
6125521 | Stumpf et al. | Oct 2000 | A |
6167665 | Dame et al. | Jan 2001 | B1 |
6226849 | Beck et al. | May 2001 | B1 |
6293624 | Gaylord et al. | Sep 2001 | B1 |
6295764 | Berridge et al. | Oct 2001 | B1 |
6364409 | Saul | Apr 2002 | B1 |
6386634 | Stumpf et al. | May 2002 | B1 |
6439659 | Neubauer, Jr. | Aug 2002 | B1 |
6439665 | Cvek | Aug 2002 | B1 |
6502902 | Romero | Jan 2003 | B1 |
D470727 | Bartley | Feb 2003 | S |
6540950 | Coffield | Apr 2003 | B1 |
6550855 | Liu | Apr 2003 | B2 |
6581260 | Kinney | Jun 2003 | B2 |
D476860 | Groendyke | Jul 2003 | S |
6588836 | Lo | Jul 2003 | B1 |
6588842 | Stumpf et al. | Jul 2003 | B2 |
6702390 | Stumpf et al. | Mar 2004 | B2 |
6718717 | Henderson et al. | Apr 2004 | B2 |
6722741 | Stumpf et al. | Apr 2004 | B2 |
6726285 | Caruso et al. | Apr 2004 | B2 |
6726286 | Stumpf et al. | Apr 2004 | B2 |
D490251 | Lin | May 2004 | S |
6733080 | Stumpf et al. | May 2004 | B2 |
6764132 | Gaertner | Jul 2004 | B1 |
D494769 | Vigneaud | Aug 2004 | S |
6890030 | Wilkerson et al. | May 2005 | B2 |
D507424 | Rogasis | Jul 2005 | S |
6942300 | Numa et al. | Sep 2005 | B2 |
6955402 | VanDeRiet et al. | Oct 2005 | B2 |
6966604 | Stumpf et al. | Nov 2005 | B2 |
D517822 | Grosfillex | Mar 2006 | S |
D519292 | Ashby | Apr 2006 | S |
7052081 | Leng | May 2006 | B2 |
7059682 | Caruso et al. | Jun 2006 | B2 |
7066550 | Su | Jun 2006 | B1 |
7249802 | Schmitz et al. | Jul 2007 | B2 |
D555371 | Le Gal | Nov 2007 | S |
D559000 | Vanderminden, Sr. | Jan 2008 | S |
D571115 | Cohen | Jun 2008 | S |
D580689 | Su | Nov 2008 | S |
7455365 | Caruso et al. | Nov 2008 | B2 |
D581708 | Su | Dec 2008 | S |
7472962 | Caruso et al. | Jan 2009 | B2 |
7537453 | Morgan et al. | May 2009 | B2 |
D599127 | Smith | Sep 2009 | S |
7594700 | Stumpf et al. | Sep 2009 | B2 |
7654616 | Kinoshita et al. | Feb 2010 | B2 |
7654617 | Farnsworth | Feb 2010 | B2 |
7765663 | Liu | Aug 2010 | B2 |
7794022 | Caruso et al. | Sep 2010 | B2 |
7841666 | Schmitz et al. | Nov 2010 | B2 |
D633311 | Peguero | Mar 2011 | S |
D639577 | Tseng | Jun 2011 | S |
8029066 | Su | Oct 2011 | B2 |
8033598 | Smith et al. | Oct 2011 | B2 |
D648554 | Smith | Nov 2011 | S |
D648962 | Brodbeck | Nov 2011 | S |
D651010 | Cohen | Dec 2011 | S |
D654322 | Duncan | Feb 2012 | S |
8109576 | Lin | Feb 2012 | B2 |
D660612 | Smith | May 2012 | S |
8172332 | Masunaga et al. | May 2012 | B2 |
8240771 | Diffrient | Aug 2012 | B2 |
8267469 | Adan | Sep 2012 | B1 |
8282172 | Schmitz et al. | Oct 2012 | B2 |
D672161 | McDowell | Dec 2012 | S |
D673816 | Phillips | Jan 2013 | S |
8449037 | Behar et al. | May 2013 | B2 |
8616655 | Jung | Dec 2013 | B2 |
8657521 | Reeves | Feb 2014 | B2 |
8801102 | Broome et al. | Aug 2014 | B2 |
8851561 | Huang | Oct 2014 | B2 |
9003635 | Parker et al. | Apr 2015 | B2 |
9033410 | Roani et al. | May 2015 | B2 |
9033421 | Wilkinson et al. | May 2015 | B2 |
9161629 | Huang | Oct 2015 | B2 |
9211014 | Schmitz et al. | Dec 2015 | B2 |
9414673 | Behar et al. | Aug 2016 | B2 |
9462891 | Kikuchi et al. | Oct 2016 | B2 |
D771400 | DoVale | Nov 2016 | S |
9492014 | Smith et al. | Nov 2016 | B1 |
9668580 | Schmitz et al. | Jun 2017 | B2 |
9877587 | Grace | Jan 2018 | B2 |
D811143 | Chavarria | Feb 2018 | S |
20010033100 | Haney | Oct 2001 | A1 |
20020142904 | Zumbiel | Oct 2002 | A1 |
20030071509 | Neil et al. | Apr 2003 | A1 |
20040251718 | Degen et al. | Dec 2004 | A1 |
20060138849 | Wilkerson et al. | Jun 2006 | A1 |
20060163934 | Chen | Jul 2006 | A1 |
20060170255 | Huang | Aug 2006 | A1 |
20070170756 | Kang | Jul 2007 | A1 |
20080001329 | Vannimwegen | Jan 2008 | A1 |
20080006965 | Hsien | Jan 2008 | A1 |
20080272640 | Boyle | Nov 2008 | A1 |
20090100587 | Smith | Apr 2009 | A1 |
20090261644 | Piretti | Oct 2009 | A1 |
20120149263 | Cvek | Jun 2012 | A1 |
20130069414 | Ko | Mar 2013 | A1 |
20150173514 | Kikuchi | Jun 2015 | A1 |
20150308171 | Shadley | Oct 2015 | A1 |
Number | Date | Country |
---|---|---|
3463190 | Jul 2005 | CN |
301324411 | Aug 2010 | CN |
301377966 | Nov 2010 | CN |
303501418 | Dec 2015 | CN |
002735472-0004 | Jul 2015 | EP |
2002-142904 | May 2002 | JP |
Entry |
---|
Aug. 3, 2018—ISR and WO—App. No. PCT/US18/34040. |
Website: Toys“R”Us, “Quinny Stroller Cupholder,” visited Jan. 5, 2017, <https://t.toysrus.com/product?productid=17078546>. |
Website: Cheeky Rascals, Image/jpg of “Mima Accessory Cup Holder,” visited Jan. 5, 2017, <http://images.cheekyrascals.co.uk/images/product_shots/mima/mima_accessory_cup_holder.jpg>. |
Website: 93y.ru., “Surf Silver Cross,”visited Jan. 5, 2017, <http://93y.ru/223101-podstakannik-surf-silver-cross.html>. |
Website: Linio, “Portavasos de Bicicleta, Motocicleta y Carreolas,” visited Jan. 5, 2017, <https://www.linio.com.mx/p/portavasos-de-bicicleta-motocicleta-y-carreolas-tmqk8f>. |
Website: Adverts, “Bugaboo Cup Holder,” visited Jan. 5, 2017, <http://www.adverts.ie/buggies/bugaboo-cup-holder/9897502>. |
Website: Babyhome, “Cup Holder,” visited Jan. 5, 2017, <http://babyhome.es/qa/en/products/cup-holder>. |
Website: Overstock, “Caravan Canopy Blue Suspension Folding Chair,” visited Jan. 31, 2018, <https://www.overstock.com/Sports-Toys/Caravan-Canopy-Blue-Suspension-Folding-Chair/8789499/product.html>. |
Website: Verified Designs, “Mesh Patio Chairs with Folding Chairs Ideas And Metal Chairs Materials,” visited Jan. 31, 2018, <http://verifieddesigns.com/spectacular-mesh-patio-chair-design-which-is-more-embellishing-you-home-space/mesh-patio-chairs-with-folding-chairs-ideas-and-metal-chairs-materials/>. |
Website: Jet, “Westfield Outdoor S13-S998T FS Tan FLD Sling Chair,” visited Jan. 31, 2018, <https://jet.com/product/Westfield-Outdoor-S13-S998T-FS-Tan-FLD-Sling-Chair/0fbe30d483a248478b79e3bce8d22928>. |
Website: Sun Prairie Blues Fest, “Reclining Patio Chair with Pull Out Ottoman,” visited Jan. 31, 2018, http://family.spbluesfest.com/foldable-reclining-patio-chair-lounge/reclining-patio-chair-with-pull-out-ottoman/. |