Multiple-fold automatic umbrella as ergonomically constructed and manipulated
AssigneeFu Tai Umbrella Works, Ltd.
InventorsChung-Kuang Lin, Jung-Jen Chang
Life of this patent
Estimating the term…
Abstract
A multiple-fold automatic umbrella includes: a central shaft, a rib assembly including a top rib, a stretcher rib, at least an intermediate rib and a tail rib pivotally connected one another and pivotally connected to the central shaft, an opening spring, a plurality of closing springs and a control device for controlling the opening and closing of the umbrella; with the intermediate rib formed by extrusion molding process to have a cross section of two-lobe shape having an inner joint and an outer joint respectively connected on opposite ends of the intermediate rib for pivotally connecting inner and outer ribs of the rib assembly for obtaining a light-weight and proper strength of the rib assembly.
Claims9
A multiple-fold automatic umbrella comprising:
- a central shaft including a plurality of tubes telescopically engageable with one another;
- a rib assembly having an umbrella cloth secured thereon and including at least a top rib pivotally secured to an upper notch of the shaft, a stretcher rib pivotally connected with said top rib and a lower runner slidably held on said shaft, an intermediate rib connectable to said stretcher rib and said top rib, and a tail rib connectable to said intermediate rib;
- an opening spring retained in said shaft for opening the umbrella;
- a plurality of closing springs retained on said rib assembly for closing the umbrella;
- and
- a control means including at least a push button formed in a grip of said shaft, and a rope directed through an interior in said shaft, said lower runner and said upper notch on said shaft;
- the improvement which comprises:
- said intermediate rib made of plastic and reinforced plastic materials by extrusion molding to have a cross section of two-lobe shape;
- an inner joint and an outer joint respectively connected with opposite ends of said intermediate rib for pivotally connecting at least an inner rib and an outer rib of said rib assembly by said inner and outer joints;
- and
- a lining bracket formed in between said inner joint of said intermediate rib and an outer portion of one said inner rib of said rib assembly for fastening one spring end of each said closing spring and for reinforcing said rib assembly.
A multiple-fold umbrella comprising:
- a central shaft including a plurality of tubes telescopically engageable with one another;
- and
- a rib assembly having an umbrella cloth secured thereon and including at least a top rib pivotally secured to an upper notch of the shaft, a stretcher rib pivotally connected with said top rib and a lower runner slidably held on said shaft, an intermediate rib connectable to said stretcher rib and said top rib, and a tail rib connectable to said intermediate rib;
- the improvement which comprises:
- said intermediate rib made of plastic and reinforced plastic materials by extrusion molding to have a cross section of two-lobe shape;
- an inner joint and an outer joint respectively connected with opposite ends of said intermediate rib for pivotally connecting at least an inner rib and an outer rib of said rib assembly by said inner and outer joints
Dependencies are inferred from the claim text.