Balance bike

Abstract

A balance bike assembly including first and second side panels. The first and second side panels extend parallel to each other. Each of the first and second side panels have a length extending between a front end and a rear end. Each of the first and second side panels include a fork section, a wheel section, and a seat post section between the fork section and the wheel section. The balance bike assembly includes first and second fork panels connected to the first and second side panels at the fork section. The first and second fork panels include a wheel end. The balance bike assembly includes a wheelset having a front wheel and a rear wheel, where the front wheel connects to the fork panels at the wheel end and the rear wheel connects to the side panels at the wheel section.

Description

BALANCE BIKECROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 656,487, filed on June 5, 2024, entitled BALANCE BIKE. The disclosure of which is hereby incorporated by reference in its entirety. To the extent appropriate, a claim of priority is made to the above disclosed application.BACKGROUND

[0002] Balance bikes, or pedal-less bikes, are sometimes used for training children or adults how to ride a bike. Balance bikes offer necessary training for riding a bicycle without the complexities of pedals and other typical bike features. Despite the progress in balance bike design and construction, there remains a need for continued innovation to improve weight, convenience, and additional features that can enhance the learning experience for children.SUMMARY

[0003] In general terms, this disclosure is directed to a bike. This disclosure discusses various configurations for a bike which may be used to decrease the overall weight of the bike. Additionally, the configurations discussed below may be used to provide a bike design that is simple to manufacture and assemble. While children sized balance bikes are specifically discussed herein, the configurations discussed herein may also be implemented within adult sized bikes. In some examples, as discussed herein, the bikes may be constructed from structural panels, as opposed to traditional welded tubes or molded carbon fiber. The structural panels may be comprised of various materials, such as, for example, carbon fiber, fiber glass, Kevlar, aluminum sheet or molded composite plates. The structural panels may be fastened together using a variety of methods, including, for example, rivets, fasteners, adhesive, press fits, or interlocking plates.

[0004] In some embodiments, and by non-limiting example, the balance bike assembly includes first and second side panels. The first and second side panels extendparallel to each other. Each of the first and second side panels have a length extending between a front end and a rear end. Each of the first and second side panels include a fork section, a wheel section, and a seat post section between the fork section and the wheel section. The balance bike assembly includes first and second fork panels connected to the first and second side panels at the fork section. The first and second fork panels include a wheel end. The balance bike assembly includes a wheelset having a front wheel and a rear wheel, where the front wheel connects to the fork panels at the wheel end and the rear wheel connects to the side panels at the wheel section, the bike assembly further includes a seat post panel including a seat post aperture and a seat post pin channel and a seat post comprising a seat post pin extending through the seat post. The seat post pin is received within the seat post pin channel when the seat post is arranged within the seat post aperture.

[0005] In certain examples, a balance bike assembly comprises first and second side panels, the first and second side panels extend parallel to each other, each of the first and second side panels have a length extending between a front end and a rear end. Each of the first and second side panels include a fork section, a wheel section, and a seat post section between the fork section and the wheel section. The balance bike assembly further comprises first and second fork panels connected to the first and second side panels at the fork section. The first and second fork panels include a wheel end. The balance bike assembly further comprises a wheelset having a front wheel and a rear wheel. The front wheel connects to the fork panels at the wheel end, the rear wheel connects to the side panels at the wheel section.BRIEF DESCRIPTION OF THE DRAWINGS

[0006] FIG. l is a perspective view of an example balance bike assembly in accordance with the principles of the present disclosure.

[0007] FIG. 2 is a perspective view of an example bike frame assembly in accordance with the principles of the present disclosure.

[0008] FIG. 3 is a perspective view of an example side panel of the bike frame assembly of FIG. 2.

[0009] FIG. 4 is a side view of the side panel of FIG. 3.

[0010] FIG. 5 is a perspective view of an example seat post panel of the bike frame assembly of FIG. 2.

[0011] FIG. 6 is a perspective view of the example seat post panel of FIG. 5 with the seat post inserted therein.

[0012] FIG. 7 is a perspective view of an example fork panel of the bike frame assembly of FIG. 2.

[0013] FIG. 8 is a perspective view of an example front panel of the bike frame assembly of FIG. 2.

[0014] FIG. 9 is a focused perspective view of an example connection between an example side panel and an example fork panel in accordance with the principles of the present disclosure.

[0015] FIG. 10 is a perspective view of another example balance bike assembly in accordance with the principles of the present disclosure.

[0016] FIG. 11 is a perspective view of another example bike frame assembly in accordance with the principles of the present disclosure.

[0017] FIG. 12 is a perspective view of an example side panel of the bike frame assembly of FIG. 11.

[0018] FIG. 13 is a perspective view of an example central body of the bike frame assembly of FIG. 11.

[0019] FIG. 14 is a side view of the central body of FIG. 13.

[0020] FIG. 15 is a perspective view of an example connection between an example side panel and an example central body in accordance with the principles of the present disclosure.

[0021] FIG. 16 is a perspective view of another example balance bike assembly in accordance with the principles of the present disclosure.

[0022] FIG. 17 is a top view of the balance bike assembly of FIG. 16.

[0023] FIG. 18 is a perspective view of an example side panel of the balance bike assembly of FIG. 16.

[0024] FIG. 19 is a perspective view of an example fork panel of the balance bike assembly of FIG. 16.

[0025] FIG. 20 is a perspective view of an example wheel of the balance bike assembly of FIG. 16.

[0026] FIG. 21 is a perspective view of various components of the bike frame assembly of FIG. 2 stacked together.

[0027] FIG. 22 is a perspective view of another example balance bike assembly in accordance with the principles of the present disclosure.

[0028] FIG. 23 is a perspective view of an example fork assembly of the balance bike assembly of FIG. 22.

[0029] FIG. 24 is a perspective view of another example balance bike assembly in accordance with the principles of the present disclosure.

[0030] FIG. 25 is a perspective view of another example balance bike assembly in accordance with the principles of the present disclosure.

[0031] FIG. 26 is a perspective view of the bike assembly of FIG. 25 with the wheels removed.

[0032] FIG. 27 is another perspective view of the bike assembly of FIG. 25 with the wheels removed.

[0033] FIG. 28 is a perspective view of another example bike assembly in accordance with the principles of the present disclosure.

[0034] FIG. 29 is a perspective view of the bike assembly of FIG. 28 with the wheels removed.

[0035] FIG. 30 is another perspective view of the bike assembly of FIG. 28 with the wheels removed.DETAILED DESCRIPTION

[0036] Various embodiments will be described in detail with reference to the drawings, wherein like reference numerals represent like parts and assemblies throughout the several views. Reference to various embodiments does not limit the scope of the claims attached hereto. Additionally, any examples set forth in this specification are notintended to be limiting and merely set forth some of the many possible embodiments for the appended claims.

[0037] FIG. 1 shows an example bike assembly 10 having a frame assembly 100, a wheelset 170, a fork 180, and a seat post 190. In certain examples, the bike assembly 10 may also include handlebars connected to the fork 180 and a seat connected to the seat post 190.

[0038] FIGS. 2-9 show various components of the frame assembly 100. In certain examples, the frame assembly 100 includes side panels 110, seat post panels 140, fork panels 150, and a front panel 160. The frame assembly 100 extends from a first end 102 to a second end 104. The frame assembly 100 also includes a fork section 106, a seat section 107, and a wheel section 108.

[0039] In certain examples, the side panels 110 include a first and second side panel 110a, 110b. The first and second side panels 110a, 110b may be structurally identical. The side panels 110 have a length L extending between the first and second ends 102, 104. The side panels 110 include a fork panel interface 116 adjacent to the first end 102 in the fork section 106, and a wheel interface 118 adjacent to the second end 104 in the wheel section 108. In certain examples, the side panels 110 include a seat panel interface 117 positioned at an intermediate location about the length L of the side panels 110 in the seat section 107. In certain examples, the side panels 1 10 have a flat exterior surface 112 and interior surface 114 along the length L such that the exterior surface 112 faces an exterior 103 of the frame assembly 10 and the interior surface 114 faces an interior 105 of the frame assembly 100. The side panels 110 have a thickness T. In certain examples, the thickness T is constant along the entire length L of the side panel 110. In certain examples, the side panels 110 are stackable on the exterior surface 112 and / or on the interior surface 114.

[0040] The fork panel interface 116 is a section of the side panel 110 corresponding to the location of the fork panels 150 when the frame assembly 100 is in an assembled state. The fork panel interface 116 is designed to connect the fork panels 150 to the side panels 110. The fork panels 150 may be connected to the side panels 110 any number of ways. In certain examples, the fork panel interface 116 includes one or more attachmentstructures 120 for connecting the side panels 110 to the fork panels 150. In certain examples, the attachment structures 120 are apertures extending between the exterior and interior surfaces 112, 114. The attachment structures 120 may be used for fastening or riveting the fork panels to the side panels either directly or through the use of a connector bracket 198. FIG. 9 shows an example of the connector brackets 198 that may be used to connect a lower fork panel 150b to the first side panel 110a. In certain examples, the fork panel interface 116 also includes a first opening 121. In certain examples, the first opening 121 provides tool access to the interior 105 of the frame 100. The first opening 121 may also provide weight savings for the bike assembly 10.

[0041] The seat panel interface 117 is a section of the side panel 110 corresponding to the location of the seat post panels 140 when the frame assembly 100 is in the assembled state. The seat panel interface 117 is designed to connect the seat post panels 140 to the side panels 110. The seat post panels 140 may be connected to the side panels 110 any number of ways. In certain examples, the seat panel interface 117 includes one or more attachment structures 120 for connecting the seat post panels 140 to the side panels 110. As discussed above, the connector brackets 198 may be used as an intermediate component for connecting the side panels 110 to the seat post panels 140. In certain examples, the seat panel interface 117 also includes a second opening 122. In certain examples, the second opening 122 provides tool access to the interior 105 of the frame 100. The second opening 122 may also provide weight savings for the bike assembly 10. In certain examples, the seat panel interface 117 is parallel to the fork panel interface 116 along the length L of the side panel 110.

[0042] The wheel interface 118 is designed to connect to a rear wheel 174 of the wheelset 170. The rear wheel 174 may be connected to the side panels 110 any number of ways that enable rotation of the wheel. In certain examples, the rear wheel connects to the wheel interface 118 with an axle 196. In certain examples, the wheel interface 118 includes an axle slot 124. In certain examples, as shown in FIGS. 3-4, the axle slot 124 extends from an axle opening 125 at the second end 104 and continues towards the seat panel interface 117. In certain examples, the side panels 110 include a taper 126 at the wheel section 108 of the frame assembly 100.

[0043] In certain examples, the side panels 110 also include first and second transition sections 128, 130. The first transition section 128 extends between the fork panel interface 116 and the seat panel interface 117. The second transition section 130 extends between the seat panel interface 117 and a taper 136 of the wheel interface 118. In certain examples, the first and second transition sections 128, 130 are parallel along the length L of the side panels 110. In certain examples, the first and second transition sections 128, 130 are angled relative to the fork panel interface 116 and the seat panel interface 117 along the length, such that the length L of the side panel 110 forms a zigzag or alternating pattern as the side panel extends along the length L from the fork panel interface 116 to the first transition section 128 to the seat panel interface 117 to the second transition section 130. A space 132 is formed between the first and second side panels 110a, 110b at the second transition section 130 and wheel section 108 that allows for clearance of the rear wheel 174.

[0044] In certain examples, the frame assembly 100 includes two seat post panels 140, with an upper seat post panel 140a and a lower seat post panel 140b. The upper and lower seat post panels 140a, 140b may be structurally identical. The seat post panels 140 are designed to connect to the seat post 190 and to the side panels 110 such that a user can sit on a seat attached to the seat post 190 during operation of the bike assembly 10. The seat post panels 140 extend between the first and second side panels 110a, 1 10b at the seat post section 107 of the frame assembly 100. In certain examples, the seat post panels 140 have a width W that extends between the first and second side panels 110a, 110b. In certain examples, the seat post panel has a thickness extending between an exterior and interior side 142, 144. In certain examples, the seat post panel thickness is equal to the thickness T of the side panels 110.

[0045] In certain examples, as shown in FIGS. 5-6, the seat post panel 140 includes a seat post aperture 146 extending between the exterior and interior sides 142, 144. The seat post aperture 146 is designed to form a close fit with the seat post 190. In some examples, the seat post aperture 146 includes one or more bushings arranged therein to facilitate a close fit with the seat post 190. In certain examples, the seat post panels 140 also include first and second seat post pin channels 148a, 148b on the exterior side 142.The seat post pin channels 148a, 148b include a channel opening 149 that connects the seat post pin channels 148a, 148b with the seat post aperture, such that a seat post pin 192 is able to extend from the seat post 190 into the seat post pin channels 148a, 148b. In some examples, the seat post pin 192 extends through the seat post 190 and out from opposite sides of the seat post 190. In certain examples, the seat post pin channels 148a, 148b are limited to the exterior side 142 such that the seat post pin 192 entering from the exterior 103 of the bike assembly is unable to continue from the exterior 142 to the interior 144. In some examples, the location of the seat post pin 192 within the seat post 190 is adjustable along the height of the seat post 190. In some examples, the seat post pin 192 may be removed from the seat post 190 and inserted into one of a plurality of holes arrayed along the height of the seat post 190. In some examples, the holes are arrayed along the height of the seat post 190 in half inch increments. This enables a user to set a desired seat height by adjusting the seat post pin 192 location on the seat post 190. In certain examples, the seat post 190 is connected to the seat post panel 140 by a collar, bushing, or other component at an interface between the seat post 190 and the seat post panel 140. In some examples, the arrangement of the seat post pin 192 within the seat post pin channels 148a, 148b, causes a seat mounted on the seat post 190 be centrally oriented on the bike assembly 10.

[0046] In some examples, the seat post 190 is held within the seat post aperture 146 by a friction fit, such that force must be applied to lift the seat post 190 out of the seat post aperture 146 in a vertical direction. In some examples, this arrangement allows for the seat post 190 to be arranged within the seat post aperture 146 in a stable manner while a user is riding, however, allows the seat post 190 to move from its location in the seat post aperture 146 if the user falls off the bike assembly 10 or a user wishes to forcibly remove the seat post 190 from the seat post aperture 146. In some examples, the above arrangement allows for the height of the seat post 190 to be easily adjusted while ensuring that the seat is centrally oriented on the bike assembly 10.

[0047] In certain examples, the seat post panels 140 include attachment structures 143 that correspond to the side panel attachment structures 120. The attachmentstructures 143 may be used for fastening or riveting the seat post panels 140 to the side panels 110 either directly or through the use of connector bracket(s) 198.

[0048] In certain examples, the seat post panels 140 include first and second seat post openings 145, 147. In certain examples, the first and second seat post openings 145, 147 provides tool access to the interior 105 of the frame 100. The first and second seat post openings 145, 147 may be used to access the connector brackets 198 for either assembly or disassembly of the frame assembly 100. The first and second seat post openings 145, 147 may also provide weight savings for the bike assembly 10.

[0049] In some examples, the zig-zag or alternating pattern of the side panels 110 is beneficial as it allows for the seat post panels 140 to be mounted on the frame assembly 107 such that they are substantially parallel with a surface upon which the bike assembly 10 is ridden upon by a user. This in turn allows for a reduction of the angle at which the seat post 190 is mounted within the seat post panels 140 on the frame assembly 100 with respect to the surface. For example, utilizing the zig-zag or alternating pattern of the side panels 110 allows for the seat post 190 to be mounted within the seat post panels 140 in a substantially vertical orientation with respect to a surface upon which the bike assembly 10 is ridden.

[0050] In some examples, the seat post panels 140 may also include additional seat post apertures arranged therein such that the seat post is adjustable in a fore and aft direction on the bike assembly 10.

[0051] In certain examples, the frame assembly 100 includes two fork panels 150, with an upper fork panel 150a and a lower fork panel 150b. The upper and lower fork panels 150a, 150b may be structurally identical. The fork panels 150 are designed to connect to the fork 180 and to the side panels 110 such that a user can steer the front wheel using the fork along with handlebars during operation of the bike assembly 10. The fork panels 150 extend a width between the first and second side panels 110a, 110b at the fork section 106 of the frame assembly 100. In certain examples, the fork panels 150 have a width that is the same as the width W of the seat post panels 140. In certain examples, the fork panels 150 include an outcropping 157 on each side that extends past the width of the fork panel 150 and is designed to engage an end of the side panels 110.In certain examples, the fork panel 150 has a thickness extending between exterior and interior sides 152, 154. In certain examples, the fork panel thickness is equal to the thickness T of the side panels 110.

[0052] In certain examples, the fork panel 150 includes a fork aperture 156 extending between the exterior and interior sides 152, 154. The fork aperture 156 is designed to form a close fit with the fork 180. In certain examples, the fork 180 is connected to the fork panel 150 by a collar or other component at an interface between the fork 180 and the fork panel 150.

[0053] In certain examples, the fork panels 150 include attachment structures 153 that correspond to the side panel attachment structures 120. The attachment structures 153 may be used for fastening or riveting the fork panels 150 to the side panels 110 either directly or through the use of connector bracket(s) 198.

[0054] In certain examples, the fork panels 150 include a fork opening 155. In certain examples, the fork opening 155 provides tool access to the interior 105 of the frame 100. The fork opening 155 may be used to access the connector brackets 198 for either assembly or disassembly of the frame assembly 100. The fork openings 155 may also provide weight savings for the bike assembly 10.

[0055] In certain examples, the fork panels 150 include a front panel engagement feature 158. The front panel engagement feature 158 is designed to engage the front panel 160 at a front end 151 of the fork panel 150. The front panel engagement feature 158 may be a recess designed to form a close fit with an end of the front panel 160. In certain examples, additional attachment structures 153 may be used to secure the front panel 160 to the fork panel 150. In certain examples, the fork panels 150 may include a taper 159 extending between the outcropping 157 and the front end 151. The taper 159 extends in a decreasing width such that the front end 151 is sized closer to a width of the front panel 160.

[0056] In certain examples, the frame assembly 100 includes a front panel 160. The front panel 160 is designed to provide the frame assembly 100 additional structural integrity and help prevent possible racking of the frame assembly 100. In certain examples, the front panel is rectangular in shape. In certain examples, the front panel hasa width extending between first and second sides 162, 164 and thickness extending between an exterior and interior sides 166, 168 that forms a close fit with the front engagement feature 158. In certain examples, the front panel thickness is the same as the thickness T of the side panels 110. The front panel 160 has a length that extends between the front engagement features 158 of the upper and lower fork panels 150a, 150b.

[0057] FIG. 10 shows another example bike assembly 20 that shares many of the same features and inventive concepts of the bike assembly 10. For conciseness, certain features are not repeated. Relevant differences are described below. In certain examples, bike assembly 20 includes a frame assembly 200 a wheelset 270, a fork 280, and a seat post 290. In certain examples, the bike assembly 20 may also include handlebars connected to the fork 280 and a seat connected to the seat post 290. In certain examples, the frame assembly 200 includes side panels 210, and a central body 240.

[0058] FIGS. 12-25 show various components of the frame assembly 200. In certain examples, the side panels 210 include first and second side panels 210a, 210b. The first and second side panels 210a, 210b may be structurally identical. The side panels 210 have a length LI extending between the first and second ends 202, 204. The side panels 210 include a fork section 216 adjacent to the first end 202, and a wheel section 218 adjacent to the second end 204. In certain examples, the side panels 210 include a seat post section 217 positioned at an intermediate location about the length LI of the side panels 210. In certain examples, the side panels 210 have a flat exterior surface 212 and interior surface 214 along the length LI such that the exterior surface 212 faces an exterior 203 of the frame assembly 200 and the interior surface 214 faces an interior 205 of the frame assembly 200. The side panels 210 have a thickness Tl. In certain examples, the thickness Tl is constant along the entire length LI of the side panel 210. In certain examples, the side panels 210 are stackable on the exterior surface 212 and / or on the interior surface 214. In the example shown in FIGS. 10-12, the side panel 210 has the same or similar dimensions LI and Tl as the side panel 110 dimensions L and T.

[0059] In certain examples, the side panels 210 includes different sections that share certain aspects with the different sections and interfaces of the side panel 110. The side panel 210 includes a fork section 216, a seat post section 217, a wheel section 218, a firsttransition section 228, and a second transition section 230. The first transition section extends between the fork section 216 and the seat post section 217. The second transition section extends between the seat post section 217 and the wheel section 218. In certain examples, the fork section 216, the seat post section 217, and the first transition section 228 include attachment structures 220 that are designed to connect the side panels 210 to the central body 240. In certain examples, the attachment structures 220 are apertures extending between exterior and interior surfaces 212, 214. The attachment structures 220 may be used for fastening or riveting the central body 240 to the side panels 210. In certain examples, adhesive may be used to connect the side panels with the central body 240. In certain examples, the side panels 210 have a similar or same zig-zag pattern between the sections as the side panels 110 described above. In certain examples, the second transition section includes a continuous taper between the seat post section 217 and the wheel section 218.

[0060] In certain examples, the central body 240 serves the same function as the fork panels 150, seat post panels 140, and the front panel 160. In certain examples, the central body 240 includes different sections including a fork body 250, a seat post body 260, and a transition body 266 between the fork body 250 and the seat post body 260. In certain examples, the central body 240 is made from a single unitary piece of material having a first end 246 and a second end 248. In other examples, the central body 240 may be more than one component.

[0061] As shown in FIGS. 13 and 14, the central body 240 is formed by a unitary sheet of material, such as, for example, a single piece of sheet metal. The central body 240 forms a portion of the exterior 203 of the frame assembly 200 where the central body 240 follows the shape of a perimeter of the side panels 210 at the first transition section 228 and seat post section 217.

[0062] In certain examples, the fork body includes an upper fork portion 251 and a lower fork portion 253. The fork body 250 also includes upper and lower fork apertures 252, 254. The upper fork aperture 252 is located in the upper fork portion 251. The lower fork aperture 254 is located in the lower fork portion 253. The upper and lower fork apertures 252, 254 are designed to form a close fit with a fork 280 of the bike assembly20. In certain examples, the fork 280 is connected to the upper and lower fork portions 251, 253 by a collar or other component at an interface between the fork 280 and the upper and lower fork portions 251, 253. The fork body 250 includes a front portion 256 that connect upper and lower portions 242, 244 of the central body 240. The front portion 256 forms an approximate middle section of the sheet of material that forms the central body 240. The front portion 256 include tabs 258 that join flush with the first end 202 of the side panels 210.

[0063] In certain examples, the seat post body 260 includes an upper seat portion 261 and a lower seat portion 263. The seat post body 260 also includes an upper seat post aperture 262 and a lower seat post aperture 264. The upper seat post aperture 262 is located in the upper seat portion 261. The lower seat post aperture 264 is located in the lower seat portion 263. The upper and lower seat post apertures 262, 264 are designed to form a close fit with a seat post 290. In certain examples, the seat post 290 is connected to the upper and lower seat portions 261, 263 by a collar or other component at an interface between the seat post 290 and the upper and lower seat portions 261, 263. In certain examples, a rear panel 276 extends from the upper seat portion 261 towards the lower seat portion 263. The first end 246 is at an end of the rear panel 276 closest to the lower seat portion 263. In certain examples, the second end 248 of the central body 240 is at the lower seat portion 263.

[0064] In certain examples, the transition body 266 includes an upper transition portion 271 and a lower transition portion 273. The upper transition portion 271 extends between the upper fork portion 251 and the upper seat portion 261. The lower transition portion 273 extends between the lower fork portion 253 and the lower seat portion 263. At transitions between the different sections, there may be bends formed to follow the contours of the side panels 210.

[0065] In certain examples, the central body includes flanges 278 that overlap with portions of the side panels where the side panel attachment structures 220 are located. The flanges 278 are designed to provide a connection surface between the central body 240 and the side panels 210. The flanges 278 have varying lengths depending on thesection where the flange 278 is present. FIG. 15 shows an example of the flanges 278 connected to a side panel 210.

[0066] In certain examples, the frame assembly 200 is made from the same material. In other examples, the central body 240 is a different material than the side panels 210. In certain examples, the central body 240 is made from a metal material. In certain examples, the side panels 210 are made from carbon fiber composite material. In certain examples, the side panels 210 are made from a stiff moldable composite material. In certain examples, the side panels 110, 310 are made from the same type of material described with respect to the side panels 210.

[0067] FIGS. 16 and 17 show another example bike assembly 30 that shares many of the same features and inventive concepts of the bike assemblies 10 and 20. For conciseness, certain features are not repeated. Relevant differences are described below. In certain examples, the bike assembly 30 includes a frame assembly 300, a wheelset 370, fork panels 350, and a seat post 390. In certain examples, the bike assembly 30 may also include handlebars connected to the fork panels 350 and a seat connected to the seat post 390. In certain examples, the frame assembly 300 includes side panels 310.

[0068] FIGS. 18-20 show various components of the bike assembly 30. In certain examples, the side panels 310 share a similar shape, sections, and dimensions to the side panel 210. In certain examples, the side panels 310 include first and second side panels 310a, 310b. The first and second side panels 310a, 310b may be structurally identical. The side panels 310 have a length L2 extending between first and second ends 302, 304. The side panels 310 include a fork section 316 adjacent to the first end 302, and a wheel section 318 adjacent to the second end 304. In certain examples, the side panels 310 include a seat post section 317 positioned at an intermediate location about the length L2 of the side panels 310. In certain examples, the side panels 310 have a flat exterior surface 312 and interior surface 314 along the length L2 such that the exterior surface 312 faces an exterior 303 of the frame assembly 300 and the interior surface 314 faces an interior 305 of the frame assembly 300. The side panels 310 have a thickness T2. In certain examples, the thickness T2 is constant along the entire length L2 of the side panel 310. In certain examples, the side panels 310 are stackable on the exterior surface 312and / or on the interior surface 314. In the example shown on FIG. 18, the side panel 310 has the same or similar dimensions L2 and T2 as the side panel 110 dimensions L and T and / or side panel 210 dimensions LI and Tl.

[0069] In certain examples, the side panels 310 includes different sections that share certain aspects with the different sections and interfaces of the side panels 110 and 210. The side panel 310 includes a fork section 316, a seat post section 317, a wheel section 318, a first transition section 328, and a second transition section 330. The first transition section extends between the fork section 316 and the seat post section 317. The second transition section extends between the seat post section 317 and the wheel section 318. In certain examples, the fork section 316, seat post section 317, and the first transition section 328 include attachment structures 320 that are designed to connect side panel 310a to side panel 310b. In certain examples, the attachment structures 320 are apertures extending between exterior and interior surfaces 312, 314. The attachment structures 320 may be used for fastening or riveting the side panels 310. In certain examples, the side panels 310 have a similar or same zig-zag pattern between the sections as the side panels 110 and 210 described above. In certain examples, the second transition section includes a continuous taper between the seat post section 317 and the wheel section 318.

[0070] The wheel section 318 is designed to connect to a rear wheel 374 of the wheelset 370. The rear wheel 374 may be connected to the side panels 310 any number of ways that enable rotation of the wheel. In certain examples, the rear wheel 374 connects to the wheel section 318 with an axle 396. In certain examples, the wheel section 318 includes an axle aperture 324.

[0071] In certain examples, the first and second side panels 310a, 310b are positioned adjacent to each other such that there is no space between the side panels 310. In certain examples, there is only a single side panel 310 with a thickness T2 that is between 0.25 and 1 inch in thickness. In other examples, as shown in FIGS. 17-18, the first and second side panels 310a, 310b are spaced apart and parallel. Spacers may be used to maintain a consistent spacing between the side panels 310. Spacing the first and second side panels 310a, 310b apart provides additional structural stability to the frame and prevents racking or twist in the frame assembly 300 during use. In certain examples, the space betweenfirst and second side panels 310a, 310b is between 0.125 and 0.5 of an inch. In certain examples, the space between first and second side panels 310a, 310b is 0.25 of an inch. In certain examples, the side panels 310 may have varying thickness. For example, the side panels may be thicker in the wheel section 318. In other examples, other sections of the side panel 310 may be thicker than the wheel section 318. In certain examples, the wheel section 318 may have a varying thickness such that the wheel section 318 has a greater thickness at / near the axle. In certain examples, a central body 240 may be used with side panels that wrap around the central body 240 at the wheel section 318 to reduce the space between the first and second side panels 310a, 310b where the wheel 370 connects. The variations in side panel 310 thickness T2 may also apply to side panels 110 and 210.

[0072] In certain examples, there are first and second fork panel 350a, 350b. In certain examples, the first and second fork panels 350a, 350b connect to the first and second side panels 310a, 310b at the fork section 316 of the side panels 310. In certain examples, the fork panels extend to connect to a front wheel 372 at a wheel end 352 similarly to the side panel 310 connection at the rear wheel 372. In certain examples, the fork panels include a handlebar aperture 356 at a handlebar end 354. The fork panels 350 may connect to the side panels 310 any number of ways. In certain examples, the fork panels 350 are connected to the side panels 310 by plates, fasteners, adhesives, etc. In certain examples, the fork panels 350 include a side panel channel 358 for the side panels 310 to fit into. In certain examples, the fork panels 350 have attachment structures 360 that are designed to connect the first and second fork panels 350a, 350b and / or to side panel 310. In certain examples, the attachment structures 360 are apertures extending between exterior and interior surfaces of the fork panels 350. The attachment structures 360 may be used for fastening or riveting the fork panels 350. In certain examples, the fork panel 350 includes an upper section 362 that has a rectangular shape with the side panel channel 358 extending inward from an edge of the rectangular shape. In certain examples, the upper section is adjacent a lower section 364 that tapers down to the wheel end 352.

[0073] In certain examples, the first and second fork panels 350a, 350b are positioned adjacent to each other such that there is no space between the fork panels 350. In certainexamples, there is only a single fork panel 350 with a thickness that is the same as the side panel 310. In certain examples, the fork panel 350 has a thickness between 0.25 and 1 inch. In other examples, as shown in FIGS. 17-18, the first and second fork panels 350a, 350b are spaced apart. Spacers may be used to maintain a consistent spacing between the fork panels 350. Spacing the first and second fork panels 350a, 350b apart provides additional structural stability to the fork and frame assembly 300 and prevents racking or twist in the frame assembly 300 during use. In certain examples, the space between first and second fork panels 350a, 350b is that same as first and second side panels 310a, 310b. In certain examples, the space between the first and second fork panels 350a, 350b is between 0.125 and 0.5 of an inch. In certain examples, the space between first and second fork panels 350a, 350b is 0.25 of an inch. The space between the side panels 310a, 310b, and the fork panels 350a, 350b forms the interior 305 of the bike assembly 30.

[0074] Bike assembly 30 includes the wheelset 370. In certain examples, the wheelset 370 includes a front wheel 372 and a rear wheel 374. In certain examples, the wheelset 370 includes a split wheel design with separate halves that are spaced apart such that the side panels 310 and / or fork panels 350 separate first and second halves 376, 378 of the wheel 372. In certain examples, first and second halves 376, 378 may be complete wheels which are positioned on opposite sides of the side panels 310 or fork panels 350. In certain examples, the first and second halves 376, 378 are split portions of a single solid wheel. In certain examples, the first and second halves 376, 378 are structurally identical. The split wheel design enables more compact frame and fork designs. In certain examples, the wheelset 370 is designed to accommodate side loading or off axis loading by using materials that are rigid enough to prevent buckling or twisting of the wheelset 370 during use. In certain examples, each half 376, 378 includes an axle aperture 380 at a central hub 382. In certain examples, each half 376, 378 includes a tread portion 384 that extends around a perimeter of the wheelset 370. For example, in such examples, each half 376, 378 wheel includes ribbed treads extending around each half 376, 378 of the wheel. In some examples, the ribbed treads provide grip for enhanced stability when the bike is leaned into turns. In certain examples, the tread portion 384 and the central hub 382 aremade from the same material. In certain examples, the wheel set is made from a polymeric material, such as rubber or plastic.

[0075] In some examples, the first and second halves 376, 378 each resemble the structure of a flying throwing disk. In some examples, the first and second halves 376, 378 treads in the direction of travel that are optimized for forward speed and turning grip.

[0076] In certain examples, the bike assemblies 10, 20, and 30 are made without pedals, chains, gears, or brakes. In use, the bike is propelled forward by a user pushing against the ground in a forward direction. In certain examples, the side panels 110, 210, and 310 and the fork panels 350 are made from carbon fiber composite material. In certain examples, the carbon fiber material is in the form of carbon fiber sheets. In certain examples, the flat nature of various parts of bike assemblies 10, 20, and 30 enable efficient packing for reduced packaging material. For examples, the frame assembly 100 may be packaged in a relatively small box, taking up only the thickness of three side panels 110. FIG. 21 shows an example, of the efficient packaging that is possible with a frame assembly 100.

[0077] In certain examples, a bike kit may be sold for assembly by a customer or user. The bike kit may include a number of components. For example, the bike kit may include the components described for the frame assembly 100, 200, or 300. In certain examples, the bike kit includes the components described for the bike assembly 10, 20, or 30. In certain examples, the bike kits may include additional components such as handlebars and / or a seat.

[0078] FIG. 22 is another example bike assembly 40. In some examples, the bike assembly 40 is similar in many aspects to the bike assembly 10. In the example of FIG. 22, the bike assembly 40 differs from the bike assembly 10 in that the bike assembly 40 further comprises a seat 413. In some examples, the seat 413 is fixedly mounted to the top of the seat post 490. In some examples, the bike assembly 40 further comprises a fork assembly 480.

[0079] FIG. 23 is a perspective view of the fork assembly 480. In the example of FIG. 23, the fork assembly comprises a handlebar 411, a steerer tube 419, a crown 417, a first fork side panel 415a, a second fork side panel 415b, and an axle 421.

[0080] The steerer tube 419 extends vertically between the handlebar 411 and the crown 417. In some examples, the steerer tube 419 is removably attached from one or more of the handlebar 411 or the crown 417 such that the steerer tube 419 is able to be extended through the upper fork panel 150a or lower fork panel 150b. The crown 417 extends down from the steerer tube 419. In some examples, the crown 417 is formed as a pyramid-type shape, with four slanted sides extending down from a flat top to which the steerer tube 419 is attached. In some examples, the crown 417 comprises a first mounting plate 423a and a second mounting plate 423b extending down from the bottom of the crown 417. In some examples, the first mounting plate 423a is located on a first side of the crown 417 and the second mounting plate 423b is located on a second side of the crown 417. In some examples, each of the first mounting plate 423a and second mounting plate 423b comprise locations at which each of the first and second side panels 415a, 415b can be mounted. In some examples, each of the first side mounting plate 423a and second mounting plate 423b comprise a plurality of holes through which rivets or other fasteners can extend for securing the first and second side panels 415a, 415b to the first and second side mounting plates 415a, 415b.

[0081] In some examples, the first side panel 415a attaches to the first mounting plate 423a and the second side panel 514b attaches to the second side mounting plate 423b. Each of the first side panel 415a and the second side panel 415b are formed as triangular shaped panels that extend down from a crown mounting portion to a wheel mounting portion. In some examples, each of the first side panel 415a and the second side panel 415b are formed identically. In other examples, the first side panel 415a is a mirror image of the second side panel 415b. In some examples, the first side panel 415a and second side panel 415b are made from similar materials as the frame assembly 200.

[0082] The axle 421 extends through each of the first and second side panels 415a, 415b. In some examples, the axle 421 comprises a cylindrical shaft about which a wheel of the wheelset 170 may rotate.

[0083] FIG. 24 is another example bike assembly 50. In some examples, the bike assembly 40 is similar in many aspects to the bike assembly 20. In the example of FIG. 24, the bike assembly 50 differs from the bike assembly 20 in that the bike assembly 50further comprises a seat 513, which is similar in many aspects to the seat 413. In some examples, the bike assembly 50 further comprises a fork assembly 580, which is similar in many aspects to the fork assembly 480.

[0084] FIG. 25 is another example bike assembly 60. In the example of FIG. 25, the bike assembly 60 is similar in many aspects to the bike assembly 30. In some examples, the bike assembly 60 differs from the bike assembly 30 in that the bike assembly 60 comprises a handlebar 609 and a seat 607.

[0085] FIG. 26 and FIG. 27 are perspective views of the bike assembly 60 with the wheels removed. As shown in FIG. 26 and FIG. 27, the bike assembly 60 comprises front cutouts 661 and rear cutouts 611 to provide space for the wheels.

[0086] As shown in FIG. 26 and FIG. 27, the side panels 610 are similar in many aspects to the side panels 310 of the bike assembly 30. In some examples, the side panels 610 differ from the side panels 310 in that the side panels 610 do not comprise a wheel section, such as the wheel section 318 of the side panels 310. Thus, in some examples, the side panels 610 terminate at a second end 604 that stops short of a wheel section.

[0087] In some examples, the bike assembly 60 further comprises a first rear wheel panel 613 and second rear wheel panels 615a, 615b. In some examples, the first rear wheel panel 613 is arranged between the side panels 610a, 610b and extends rearwardly out from the second end 604 of the side panels 610a, 610b. The first rear wheel panel 613 allows for the frame of the bike assembly 600 to extend to a point where the rear wheel may be connected, while providing a narrower portion about which the wheels of the bike may pass.

[0088] The second rear wheel panels 615a, 615b are arranged on either side of the first rear wheel panel 613 and extend rearwardly from the transition panel 613. Like the side panels 310, the second rear wheel panels 615a, 615b comprise an axle aperture 624b through which an axle 695b may pass.

[0089] Still referring to FIG. 26 and FIG. 27, the bike assembly 600 also comprises fork panels 650a, 650b. The fork panels 650a, 650b are similar in many aspects to the fork panels 350. In some examples, the fork panels 650 differ from the fork panels 350 in that the fork panels 650 do not comprise a wheel end, such as the wheel end 352 of thefork panels 350. Thus, in some examples, the fork panels 650 terminate at a second end 351 that stops short of a wheel end.

[0090] In some examples, the bike assembly 60 further comprises a first front wheel panel 663 and second front wheel panels 665. In some examples, the first front wheel panel 663 is arranged between the fork panels 650a, 650b and extends downwardly out from a second end of the fork panels 650a, 650b. The first front wheel panel 663 allows for the frame of the bike assembly 600 to extend to a point where the front wheel may be connected, while providing a narrower portion about which the front wheel of the bike may pass.

[0091] The second front wheel panels 665a, 665b are arranged on either side of the first front wheel panel 663 and extend downward from the first front wheel panel 663. Like the fork panels 350, the front second wheel panels 665 comprise an axle aperture 624a through which an axle 625a may pass.

[0092] FIG. 28 is a perspective view of another example bike assembly 70. The bike assembly 70 is similar in many aspects to the bike assembly 60.

[0093] FIG. 29 and FIG. 30 are perspective view of the bike assembly 70 with the wheels removed. As shown in FIG. 28 and FIG. 29, the bike assembly 70 is configured to provide additional space for the wheels.

[0094] As shown in FIG. 29 and FIG. 30, the side panels 710 are similar in many aspects to the side panels 610 of the bike assembly 60. In some examples, the bike assembly 70 further comprises a rear wheel panel 715. In some examples, the rear wheel panel 715 is arranged between the side panels 710a, 710b and extends rearwardly out from a second end 704 of the side panels 710a, 710b. The rear wheel panel 615 allows for the frame of the bike assembly 700 to extend to a point where the rear wheel may be connected, while providing a narrower portion about which the wheels of the bike may pass.

[0095] The rear wheel panel 715 continues to extend rearwardly to a point where a rear wheel may be connected. The rear wheel panel 715 comprises an axle aperture 724b through which an axle 795b may pass.

[0096] Still referring to FIG. 29 and FIG. 30, the bike assembly 700 also comprises fork panels 750a, 750b. The fork panels 750a, 750b are similar in many aspects to the fork panels 650a, 650b.

[0097] In some examples, the bike assembly 70 further comprises a front wheel panel 765. In some examples, the front wheel panel 756 is arranged between the fork panels 750a, 750b and extends downwardly out from a second end of the fork panels 750a, 750b. The front wheel panel 756 allows for the frame of the bike assembly 700 to extend to a point where the front wheel may be connected, while providing a narrower portion about which the front wheel of the bike may pass.

[0098] The front wheel panel 765 extends downward to a point where the front wheel may be connected. The front wheel panel 665 comprises an axle aperture 724a through which an axle 725a may pass.

[0099] As noted above, various components discussed herein may be manufactured from carbon fiber sheets. In other examples, such components may also be manufactured from injection molded plastics. In other examples, such components may be manufactured through various additive manufacturing techniques.

[0100] This disclosure should be understood to include (as illustrative and not limiting) the subject matter set forth in the following numbered clauses:

[0101] Clause 1 . A bike frame assembly comprising: first and second side panels, the first and second side panels extending parallel to each other, each of the first and second side panels having a length extending between a front end and a rear end, each of the first and second side panels including a fork section, a wheel section, and a seat section between the fork section and the wheel section, the fork section having a fork interface at the front end and the wheel section having a wheel interface at the rear end; a seat post panel including a seat post aperture and a seat post pin channel; and a seat post comprising a seat post pin extending through the seat post, the seat post pin being received within the seat post pin channel when the seat post is arranged within the seat post aperture.

[0102] Clause 2. The bike frame assembly of any of the preceding clauses, wherein the first and second side panels each include a flat interior side and a flat exterior side such that the first and second side panels are stackable with each other on both the interior side and the exterior side.

[0103] Clause 3. The bike frame assembly of any of the preceding clauses, wherein the first and second side panels are spaced apart.

[0104] Clause 4. The bike frame assembly of any of the preceding clauses, wherein the first and second side panels both have a constant thickness.

[0105] Clause 5. The bike frame assembly of any of the preceding clauses, wherein the first and second side panels include attachment structures.

[0106] Clause 6. The bike frame assembly of any of the preceding clauses, wherein the first and second side panels are made from a carbon fiber composite sheet.

[0107] Clause 7. A balance bike assembly comprising: first and second side panels, the first and second side panels extending parallel to each other, each of the first and second side panels having a length extending between a front end and a rear end, each of the first and second side panels including a fork section, a wheel section, and a seat post section between the fork section and the wheel section; first and second fork panels connected to the first and second side panels at the fork section, the first and second fork panels including a wheel end; and a wheelset having a front wheel and a rear wheel, the front wheel connecting to the fork panels at the wheel end, the rear wheel connecting to the side panels at the wheel section.

[0108] Clause 8. The balance bike assembly of any of the preceding clauses, wherein both the front and rear wheels include a first half and a second half such that the first half connects to the balance bike assembly on a first side and the second half connects to the balance bike assembly on a second side.

[0109] Clause 9. The balance bike assembly of any of the preceding clauses, wherein the first and second side panels extend between the first and second halves of the rear wheel at the wheel section.

[0110] Clause 10. The balance bike assembly of any of the preceding clauses, wherein the first and second fork panels extend between the first and second halves of the front wheel at the wheel end.[OHl] Clause 11. The balance bike assembly of any of the preceding clauses, wherein the first and second halves are distinct separate wheels.

[0112] Clause 12. The balance bike assembly of any of the preceding clauses, wherein the first and second halves are formed by splitting a single wheel.

[0113] Clause 13. The balance bike assembly of any of the preceding clauses, wherein the balance bike assembly further comprises a front wheel panel arranged between and extending out from the first and second fork panels, wherein the front wheel panel extends between the first and second halves of the front wheel.

[0114] Clause 14. The balance bike assembly of any of the preceding clauses, wherein the balance bike assembly further comprises a rear wheel panel arranged between and extending out from the first and second side panels, wherein the rear wheel panel extends between the first and second halves of the rear wheel.

[0115] Clause 15. The balance bike assembly of any of the preceding clauses, wherein the first and second side panels are spaced apart between 0.125 and 0.5 of an inch.

[0116] Clause 16. The balance bike assembly of any of the preceding clauses, wherein the first and second fork panels are spaced apart between 0.125 and 0.5 of an inch.

[0117] Clause 17. The balance bike assembly of any of the preceding clauses, wherein the first and second side panels are spaced apart and connected to each other by fasteners.

[0118] Clause 18. The balance bike assembly of any of the preceding clauses, wherein the first and second fork panels are spaced apart and connected to each other by fasteners.

[0119] Clause 19. The balance bike assembly of any of the preceding clauses claim 7, wherein a seat post connects to the first and second side panels at the seat post section.

[0120] Clause 20. The balance bike assembly of any of the preceding clauses, wherein the first and second fork panels include a handlebar aperture at a handlebar end opposite the wheel end, and wherein handlebars connect to the first and second fork panels at the handlebar apertures.

[0121] Clause 21. A bike frame assembly kit comprising: first and second side panels having a length extending from a first end to a second end and a constant thickness along the length; first and second seat post panels having a thickness equal to the thickness of the first and second side panels; first and second fork panels having a thickness equal to the thickness of the first and second side panels; and a plurality of fasteners for joining the seat post panels to the side panels and for joining the fork panels to the side panels.

[0122] Clause 22. The bike frame assembly kit of any of the preceding clauses, wherein the first and second side panels are stackable on each other, wherein the first and second seat post panels and the first and second fork panels are stackable along the length of one of the first and second side panels such that the bike frame assembly kit fits within a box having an interior opening thickness equal to the thickness of three side panels.

[0123] The various embodiments described above are provided by way of illustration only and should not be construed to limit the claims attached hereto. Those skilled in the art will readily recognize various modifications and changes that may be made without following the example embodiments and applications illustrated and described herein, and without departing from the full scope of the following claims.

Claims

WHAT IS CLAIMED IS:

1. A bike frame assembly comprising: first and second side panels, the first and second side panels extending parallel to each other, each of the first and second side panels having a length extending between a front end and a rear end, each of the first and second side panels including a fork section, a wheel section, and a seat section between the fork section and the wheel section, the fork section having a fork interface at the front end and the wheel section having a wheel interface at the rear end; a seat post panel including a seat post aperture and a seat post pin channel; and a seat post comprising a seat post pin extending through the seat post, the seat post pin being received within the seat post pin channel when the seat post is arranged within the seat post aperture.

2. The bike frame assembly of claim 1, wherein the first and second side panels each include a flat interior side and a flat exterior side such that the first and second side panels are stackable with each other on both the interior side and the exterior side.

3. The bike frame assembly of claim 1, wherein the first and second side panels are spaced apart.

4. The bike frame assembly of claim 1, wherein the first and second side panels both have a constant thickness.

5. The bike frame assembly of claim 1, wherein the first and second side panels include attachment structures.

6. The bike frame assembly of claim 1, wherein the first and second side panels are made from a carbon fiber composite sheet.

7. A balance bike assembly comprising:first and second side panels, the first and second side panels extending parallel to each other, each of the first and second side panels having a length extending between a front end and a rear end, each of the first and second side panels including a fork section, a wheel section, and a seat post section between the fork section and the wheel section; first and second fork panels connected to the first and second side panels at the fork section, the first and second fork panels including a wheel end; and a wheelset having a front wheel and a rear wheel, the front wheel connecting to the fork panels at the wheel end, the rear wheel connecting to the side panels at the wheel section.

8. The balance bike assembly of claim 7, wherein both the front and rear wheels include a first half and a second half such that the first half connects to the balance bike assembly on a first side and the second half connects to the balance bike assembly on a second side.

9. The balance bike assembly of claim 8, wherein the first and second side panels extend between the first and second halves of the rear wheel at the wheel section.

10. The balance bike assembly of claim 8, wherein the first and second fork panels extend between the first and second halves of the front wheel at the wheel end.

11. The balance bike assembly of claim 8, wherein the first and second halves are distinct separate wheels.

12. The balance bike assembly of claim 8, wherein the first and second halves are formed by splitting a single wheel.

13. The balance bike assembly of claim 8, wherein the balance bike assembly further comprises a front wheel panel arranged between and extending out from the first andsecond fork panels, wherein the front wheel panel extends between the first and second halves of the front wheel.

14. The balance bike assembly of claim 7, wherein the balance bike assembly further comprises a rear wheel panel arranged between and extending out from the first and second side panels, wherein the rear wheel panel extends between the first and second halves of the rear wheel.

15. The balance bike assembly of claim 7, wherein the first and second side panels are spaced apart and connected to each other by fasteners.

16. The balance bike assembly of claim 7, wherein the first and second fork panels are spaced apart and connected to each other by fasteners.

17. The balance bike assembly of claim 7, wherein a seat post connects to the first and second side panels at the seat post section.

18. The balance bike assembly of claim 7, wherein the first and second fork panels include a handlebar aperture at a handlebar end opposite the wheel end, and wherein handlebars connect to the first and second fork panels at the handlebar apertures.

19. A bike frame assembly kit comprising: first and second side panels having a length extending from a first end to a second end and a constant thickness along the length; first and second seat post panels having a thickness equal to the thickness of the first and second side panels; first and second fork panels having a thickness equal to the thickness of the first and second side panels; and a plurality of fasteners for joining the seat post panels to the side panels and for joining the fork panels to the side panels.

20. The bike frame assembly kit of claim 19, wherein the first and second side panels are stackable on each other, wherein the first and second seat post panels and the first and second fork panels are stackable along the length of one of the first and second side panels such that the bike frame assembly kit fits within a box having an interior opening thickness equal to the thickness of three side panels.

Images