Patent Application
20180222036
Convertible creeper chairs or assemblies are popular in the automobile mechanics sector, where such convertible creepers are used to provide support and comfort for a person in a lied down position or in a seated erect position while performing work, for example, the work of an auto mechanic on an automobile or some other similar equipment. The convertible creeper chair, also known as a mechanic's creeper, is a seating device generally used to support a mechanic in a lying position and at a minimal height above the ground level to enable work in the underside of a vehicle. A general creeper assembly comprises a framework having a normally flat support section. The framework is typically supported on wheels, for example, castor wheels, to allow the person, who is supported in the lying down position, to displace the creeper assembly framework from one position to another position below the vehicle, where it is difficult to reach during a normal working procedure.
Convertible creeper units are also identified to be modifiable between various positions, for example, a lowered lying configuration and a raised seated configuration. Anyhow, known convertible creeper units are constructed to be manually adjusted between the lowered lying configuration and the raised seated configuration when a person is not supported on the creeper unit. Therefore, these creeper units can prove to be inconvenient to adjust between the various configurations. However, such conventional creeper units face some problems, such as, during a normal working procedure, when the mechanic wants to sit or lie down in a certain configuration where the backrest has to be avoided from interfering with work, the mechanic finds it very difficult to work because of the hindrance caused by the backrest. Therefore, the mechanic is forced to adjust the backrest in a position which is inconvenient and he/she has to choose a feasible method to get the work done, which might not be efficient and might be time consuming. Further, most conventional creeper units, in their seating position, are always about 15 to 16 inches above the ground which makes it difficult for a mechanic, if he wants to be seated in the ground level itself. Therefore, there is a need for a creeper assembly framework that can be disassembled to enable a singular seating position for the mechanic or user in close contact with the ground level.
Hence, there is a long felt but unresolved need for a chair chassis for constructing a disassemblable chair, where the seating section and the backrest section can be removably attached to enable the user to sit or lie down without the hindrance from the backrest, and to enable the user to sit down at the ground level itself and perform the work.
The chair chassis for constructing a disassemblable chair disclosed herein addresses the above mentioned need for a creeper assembly where the seating section and the backrest section can be removably attached to enable the user to sit or lie down without the hindrance from the backrest, and to enable the user to sit down at the ground level itself and perform the work. The chair chassis for constructing a disassemblable chair comprises a seat member and a backrest member. The seat member is configured to provide a seat, where a rear section of the seat member comprises a first engagement member, and the backrest member comprises a second engagement member, where the second engagement member is engaged to the first engagement member of the seat member to removably connect the backrest member to the seat member, where the backrest member is selectively removable from the seat member.
In an embodiment, the backrest member is engaged to a first of the first engagement members of the seat member, where the seat member and the backrest member are in a substantially horizontal position. In an embodiment, the backrest member is engaged to a second of the first engagement members of the seat member, wherein the seat member and the backrest member are in a substantially angled position. In an embodiment, the seat member and the backrest member are defined by a tubular framework. In an embodiment, the tubular framework defining the seat member and the backrest member comprises a generally U shaped tube member with cross bars extending across angled afts of the U shaped tube member.
In an embodiment, the first engagement member is a set of female connectors, and the second engagement member is a set of male connectors, where both the male connectors and the female connectors are positioned on the angled afts of the U shaped tube members defining the framework of the seat member and the backrest member. In an embodiment, each male connector is inserted into the female connector to form a sliding fit connection between the seat member and the backrest member. In an embodiment, the angled afts of the seat member and the backrest member comprise openings positioned proximal to the distal ends of the seat member and the backrest member, where the openings are configured to receive and attach castor wheels. In an embodiment, the angled afts of the seat member and the backrest member comprise holes positioned on predefined points, wherein the holes are configured to receive fasteners of cushion members which are configured to be attached on the tubular framework of the seat member and the backrest member.
In an embodiment, the seat member 101 and the backrest member 103 are defined by a tubular framework. In an embodiment, the tubular framework defining the seat member 101 and the backrest member 103 comprises a generally U shaped tube member 105 with cross bars 106 extending across angled afts 107 of the U shaped tube member 105. The angled aft 107 is, for example, a 2 inch tube that supports the backrest member 103 when it is held in place. The angled aft 107 comprises corner brackets angled back at 13/16 inner diameter with 1 inch, for example, 1 inch tubing and 2 inch long. In an embodiment, the first engagement member 102 is a set of female connectors, and the second engagement member 104 is a set of male connectors, where both the male connectors and the female connectors are positioned on the angled afts 107 of the U shaped tube members 105 defining the framework of the seat member 101 and the backrest member 103.
In an embodiment, each male connector is inserted into the female connector to form a sliding fit connection between the seat member 101 and the backrest member 103. In an embodiment, the angled afts 107 of the seat member 101 and the backrest member 103 comprise openings 108 positioned proximal to the distal ends 101b and 103a of the seat member 101 and the backrest member 103, where the openings 108 are configured to receive and attach castor wheels. In an embodiment, the angled afts 107 of the seat member 101 and the backrest member 103 comprise holes 109 positioned on predefined points, wherein the holes 109 are configured to receive fasteners of cushion members which are configured to be attached on the tubular framework of the seat member 101 and the backrest member 103.
The foregoing examples have been provided merely for the purpose of explanation and are in no way to be construed as limiting of the present concept disclosed herein. While the concept has been described with reference to various embodiments, it is understood that the words, which have been used herein, are words of description and illustration, rather than words of limitation. Further, although the concept has been described herein with reference to particular means, materials, and embodiments, the concept is not intended to be limited to the particulars disclosed herein; rather, the concept extends to all functionally equivalent structures, methods and uses, such as are within the scope of the appended claims. Those skilled in the art, having the benefit of the teachings of this specification, may affect numerous modifications thereto and changes may be made without departing from the scope and spirit of the concept in its aspects.
