BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a preferred embodiment of detachable chair according to the invention;
FIG. 2 is a perspective view of the detached first and second frame members;
FIG. 3 is a perspective view of the detached first and second frame members being assembled as a flat piece prior to storage;
FIG. 4 is a perspective view of the detached first and second frame members having been assembled as a flat piece in a storage state; and
FIGS. 5, 6, and 7 are perspective views illustrating three steps of forming the backrest of the chair by assembling a rectangular member with the side rails respectively.
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIGS. 1 to 7, a detachable chair in accordance with a preferred embodiment of the invention comprises a first frame member 10 and a second frame member 20. Each component is discussed in detailed below.
The first frame member 10 comprises two parallel first side rails 11 having a leg 111 and an intermediate, lengthwise slit 15, a plurality of front first cross rails 13 interconnecting front surfaces of the first side rails 11, a plurality of rear second cross rails 12 interconnecting rear surfaces of the first side rails 11, and a third cross rail 14 interconnecting inner side surfaces of the first side rails 11, the third cross rail 14 being disposed lower than the lowest first cross rail 13.
The second frame member 20 comprises two parallel second side rails 22 having a leg 24, the second side rails 22 being shorter than the first side rails 11, a plurality of first seat rails 21 interconnecting upper surfaces of the second side rails 22, each first seat rail 21 having an end portion 211 projecting laterally out of the second side rail 22, and a second seat rail 23 disposed in a rear of the first seat rails 21 and interconnecting the upper surfaces of the second side rails 22, the second seat rail 23 having either end 232 flush with an outer side surface of the second side rail 22. As such, a rear surface of the second seat rail 23 is engaged with and stopped by a lower front portion of the lowest rear second cross rail 12, the second side rails 22 are rested upon the lowest first cross rail 13, and the legs 111 and 24 are supported on the ground in response to inserting the second frame member 20 through a gap between the lowest first cross rail 13 and the lowest rear second cross rail 12 in a process of assembling both the first and second frame members 10 and 20 as a chair. Note that each of the legs 111 has an inclined bottom and each of the legs 24 has an inclined portion such that the assembled chair can stand firmly on the ground (see FIG. 1). It is also shown in FIG. 1 that either end of each of the first seat rails 21 is flush with an outer side surface of each of the first side rails 11 in the assembled state of the chair. In view of the above, the assembling process of the chair is very easy and simple. Also, the assembled chair can stand firmly and withstand the weight of a person sit on the first seat rails 21. Further, a transverse length of the second frame member 20 is slightly smaller than a distance between the inner side surfaces of the first side rails 11. Thus, the detached first and second frame members 10 and 20 can be assembled as a flat piece prior to storage (see FIGS. 2, 3, and 4).
For the comfort of a person sitting on the chair, a backrest 40 is provided by referring to FIGS. 5 to 7 specifically. The backrest 40 is formed of a fabric or an elastomeric material. The backrest 40 is rectangular and comprises a sheath 41 at either side. The sheath 41 has a length slightly smaller than that of the slit 15 (see FIG. 5). In assembly, the sheaths 41 are adapted to insert through the slits 15 to dispose internally of the first side rails 11 (see FIG. 6). Next, insert a cylindrical rod 42 having a length longer than that of each of the slit 15 and the sheath 41 through the sheath 41 until both ends of the rod 41 are disposed externally of the sheaths 41 (see FIG. 7). In this position, the backrest 40 is secured across the slits 15 since the sheaths 41 are prevented from passing through the slits 15 when a force is exerted upon the backrest 40 due to the stopping effect of the rods 42. Thus, a person sifting on the first seat rails 21 can comfortably rest the back on the backrest 40.
While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
Patent Application
20080023999
