[특허]Dual-chair beach wagon

Tyson, III, Robert L.

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Dual-chair beach wagon

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62B-003/02 A47C-013/00 A47C-007/00 A47C-001/14 B62B-009/14 B62B-005/06
미국특허분류(USC)	280/648; 297/129
출원번호	US-0562102 (2012-07-30)
등록번호	US-8851503 (2014-10-07)
발명자 / 주소	Tyson, III, Robert L.
출원인 / 주소	Tyson, III, Robert L.
대리인 / 주소	Litman, Richard C.
인용정보	피인용 횟수 : 5 인용 특허 : 23

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The dual-chair beach wagon includes attachable beach chairs with removable wheels that convert the beach chairs into a rolling wagon for transport of beach paraphernalia. The beach chairs have arm latches and frame brackets that allow them to be removably connected together at opposing front ends to form the wagon. When disconnected each chair serves as a standard beach chair. The removably attachable wheels attach to adjustable rear legs of the beach chairs. In preparation for beach wagon mode, the front legs can be folded up and secured with a recessed leg lock to facilitate attachment of the two chairs using the arm latches and frame brackets to form the beach wagon. A pull rod is attachable to one end of the dual chair configuration. Wheels on the pull rod attachment end of the dual chair configuration have independently pivotal axles to facilitate steering of the wagon transport.

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1. A dual-chair beach wagon, comprising: first and second collapsible chairs, each of the chairs having a seat frame and a backrest frame;rear leg members disposed on each of the first and second collapsible chairs;retractable front leg members pivotally attached to the first and second collapsible chairs;left and right side armrests attached to and extending forward from respective left and right sides of the backrest frame of each of the first and second collapsible chairs;complementary armrest latching mechanisms disposed on a front portion of each of the left and right side armrests, the armrest latching mechanisms removably joining the front portion of the right armrest of the first collapsible chair to the front portion of the left armrest of the second collapsible chair, and joining the front portion of the right armrest of the second collapsible chair to the front portion of the left armrest of the first collapsible chair;complementary seat frame latching mechanisms disposed on a front portion of each of the seat frames, the seat frame latching mechanisms removably joining the front portion of the seat frame of the first collapsible chair to the front portion of the seat frame portion of the second collapsible chair;an elongate pull rod having a handle at one end and a connector at the other end;a pull rod coupler attached to a rear portion of the seat frame of the first collapsible chair, the pull rod coupler removably receiving the pull rod at the pull rod connector;a trailing pair of wheel and axle assemblies having an adjustable attachment removably attaching the wheel and axle assemblies to a respective one of the rear leg members of the second collapsible chair; anda leading pair of wheel and axle assemblies having an adjustable attachment removably attaching the leading wheel and axle assemblies to a respective one of the rear leg members of the first collapsible chair, the leading pair of wheel axles being pivotal within the respective adjustable attachment, thereby facilitating steering of the dual-chair beach wagon when the dual-chair beach wagon is pulled using the pull rod;wherein the collapsible chairs are alternately configured for stand-alone use as beach chairs or connectable to each other to form a wagon for transport of articles. 2. The dual-chair beach wagon according to claim 1, further comprising an equipment retaining strap attached to the back frames of each of said collapsible chairs, respectively, the retaining straps being aligned and configured for transporting elongate paraphernalia. 3. The dual-chair beach wagon according to claim 1, wherein the armrest latching mechanisms removably joining armrest front portions of the collapsible chairs comprise: a first slotted planar key slidably attached to said front right armrest of said first collapsible chair;a tab extending from said first slotted planar key;a first channel disposed in front portion of the left armrest of said second collapsible chair, the first channel being adapted for receiving the first slotted planar key;a throughbore extending perpendicularly from an exterior of the left armrest of said second collapsible chair through the first channel; anda pin adapted for sliding through the throughbore and through the first channel;wherein when a user pulls the tab to slide the first slotted planar key into the first receiving channel, the armrests can be locked together when the pin is positioned through the armrest throughbore and through the first channel and through slot of the first slotted planar key. 4. The dual-chair beach wagon according to claim 3, wherein the armrest latching mechanisms removably joining armrest front portions of the collapsible chairs comprise: a second slotted planar key slidably attached to the front right armrest of said second collapsible chair;a tab extending from the second slotted planar key;a second channel disposed in the front portion of the left armrest of said first collapsible chair, the second channel being adapted for receiving the second slotted planar key;a throughbore extending perpendicularly from an exterior of the left armrest of said first collapsible chair through the second channel; anda pin adapted for sliding through the throughbore and through the second channel;wherein when a user pulls the tab to slide the second slotted planar key into the second receiving channel, the armrests can be locked together when the pin is positioned through the armrest throughbore and through the second channel and through slot of the second slotted planar key. 5. The dual-chair beach wagon according to claim 1, wherein the seat frame latching mechanisms removably joining seat frame front portions of the collapsible chairs comprise: first upper and lower slotted receiving members disposed on and extending forward from the left front portion of the seat frame of said second collapsible chair;throughbores driven through the first slotted receiving members from an exterior of the slotted receiving members and perpendicularly intersecting slots of the first slotted receiving members;first upper and lower insertive planar members disposed on and extending forward from the right front portion of the seat frame of said first collapsible chair, the first upper and lower insertive planar members having throughbores on a front portion thereof and being adapted for fitting into the slots of the first upper and lower receiving members; andpins adapted for insertion through throughbores of the first receiving members and the first insertive planar members when the first insertive planar members are aligned in the slots;whereby the seat frames of said first and second collapsible chairs are securely fastened to each other. 6. The dual-chair beach wagon according to claim 5, wherein the seat frame latching mechanisms removably joining seat frame front portions of the collapsible chairs comprise: second upper and lower slotted receiving members disposed on and extending forward from left front portion of the seat frame of said first collapsible chair;throughbores driven through the second slotted receiving members from an exterior of the second slotted receiving members and perpendicularly intersecting slots of the second slotted receiving members;second upper and lower insertive planar members disposed on and extending forward from right front portion of the seat frame of said second collapsible chair, the second upper and lower insertive planar members having throughbores on a front portion thereof and being adapted for fitting into the slots of the second upper and lower receiving members; andpins adapted for insertion through throughbores of the second receiving members and the second insertive planar members when the second insertive planar members are aligned in the slots;whereby the seat frames of said first and second collapsible chairs are securely fastened to each other. 7. The dual-chair beach wagon according to claim 1, further comprising upholstery attached to the seat back frames and to the seat frames of said first and second collapsible chairs. 8. The dual-chair beach wagon according to claim 1, further comprising ratchet and pawl assemblies disposed in said arm rests, allowing a movable portion of said arm rests to be adjusted relative to a fixed portion of said arm rests, thereby allowing angular adjustment of said backrest frame with respect to said seat frame. 9. The dual-chair beach wagon according to claim 8, wherein said front leg members each further comprises: a front leg pivot bracket having a pivot point and a pair of alignment bores, the front leg pivot bracket attached to the front leg member at an upper portion of said front leg member;a hollow tubular attachment elbow bracket having an upper part pivotally attached to lower front portion of the arm rest ratchet assembly, and a lower part having opposing throughbores, an extension, extending perpendicularly from upper and lower portions of the elbow forming a pivotal attachment at the pivot point of the front leg pivot bracket;a spring member with detents disposed inside the lower elbow portion, the detents extending through the opposing throughbores of the elbow; andwherein when said front leg member is pivoted forward, the alignment bores of the front leg pivot bracket swings in alignment with the elbow detents thereby locking the front leg in an extended position. 10. The dual-chair beach wagon according to claim 8, wherein each said rear leg member further comprises: an elongate tubular member;two elongate angular members attached lengthwise to the elongate tubular member, forming a guide channel along the length of said rear leg member; anda telescoping leg extension member slidably attached inside the elongate tubular member, the telescoping leg extension adjusting a height of said rear leg above a supporting surface. 11. The dual-chair beach wagon according to claim 10, wherein each said wheel and axle assembly comprises: a wheel attachment sleeve adapted for fitting over the guide channel of the rear leg member;first section of axle portion of the wheel and axle assembly attached to and vertically descending from the wheel attachment sleeve;second section of the axle portion extending perpendicular to and horizontally away from the first axle section; andthird section of the axle portion extending perpendicular to and horizontally away from the second axle section, the third section securing the wheel to the axle. 12. The dual-chair beach wagon according to claim 11, wherein said axle portion further comprises a gusset attached to first and second sections of said axle, thereby strengthening said axle. 13. The dual-chair beach wagon according to claim 12, further comprising a rivet extending from said seat frame member, the rivet providing an anchor point to hang said wheel assembly in storage while said collapsible chairs are being used individually. 14. The dual-chair beach wagon according to claim 13, wherein the wheel assembly sleeve further comprises a figure-eight shaped bore adapted for hanging said wheel assembly on said rivet for storage of said wheel assembly.

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이 특허를 인용한 특허 피인용횟수: 5

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Dual-chair beach wagon

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Dual-chair beach wagon

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이 특허에 인용된 특허 (23)

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