Folding chair with wheels
View Patent ↗A folding chair with wheels includes a backrest, a seat, a front leg frame and a rear leg frame pivotally connected to both sides of the seat, a plurality of wheel assemblies and a plurality of connection blocks. Each of the front leg frame and the rear leg frame comprises a groove at a side surface thereof. The wheel assembly includes a wheel, a bearing and a threaded stem screwed into the connection block. The connection block has a plurality of connection screw holes, and is screwed onto the grooves of the front leg frame and the rear leg frame by bolts. The wheel assemblies connected with the front leg frame and the rear leg frame are disposed at the external side and the internal side of the folding chair, respectively. Therefore, the wheel assemblies do not interfere with each other when the chair is folded.
1. A folding chair with wheels, comprising:
a backrest;
a seat;
a front leg frame and a rear leg frame pivotally connected to both sides of the seat, each of the front leg frame and the rear leg frame having a groove at a side surface thereof;
a plurality of connection blocks, each connection block having a ridge complementary in shape to the grooves in the leg frames, the ridge of each connection block fitting within and being connected to a respective groove; and
a plurality of wheel assemblies, each having a respective connection block mounted thereon, so that each end of the front leg frame and the fear leg frame is provided with a respective wheel assembly.
2. The folding chair as claimed in claim 1 , wherein each wheel assembly comprises a threaded stem, a wheel fork, a bearing connected with the threaded stem and disposed within the wheel fork, and a wheel pivotally connected within the wheel fork, the threaded stem being screwed into a bottom of the respective connection block.
3. The folding chair as claimed in claim 1 , wherein each ends of the grooves comprises a plurality of through holes, each of the connection blocks comprises a plurality of connection screw holes corresponding to the through holes; further comprising bolts that pass through the connection screw holes and the through holes, thereby connecting the connection blocks to the grooves.
4. The folding chair as claimed in claim 1 , wherein the wheel assemblies mounted on the front leg frame are at a side away from the seat, and the wheel assemblies mounted on the rear leg frame are at a side toward the seat.