초록 ▼

A self propelled lawnmower protective component used to support the grass catcher door is formed of a plastic material that is more flexible than the polyethylene material used in the prior art. By using co-extrusion, two different plastics are extruded into one shape. When applied to the lawnmower

A self propelled lawnmower protective component used to support the grass catcher door is formed of a plastic material that is more flexible than the polyethylene material used in the prior art. By using co-extrusion, two different plastics are extruded into one shape. When applied to the lawnmower structure, the adhesion between the basic profile and the co-extruded ball is extremely tight. TPE is the plastic material which, when compressed under load and heat, recovers its original shape, similar to a soft rubber product and still has the capability of adhering to the polyethylene profile, so as not to separate after continuous or repeated use and still return to its original shape. An additional volume of TPE may be formed within the ball to provide mechanical strength. The TPE used is SANTOPRENE.RTM..

대표청구항 ▼

1. A spring clip for the rear discharge door of a lawnmower comprising: a spring clip formed of a low density polyethylene, said spring clip having an elongated portion and a hook portion and a hollow ball formed of thermoplastic elastomer attached to said hook portion, a volume of said thermoplasti

1. A spring clip for the rear discharge door of a lawnmower comprising: a spring clip formed of a low density polyethylene, said spring clip having an elongated portion and a hook portion and a hollow ball formed of thermoplastic elastomer attached to said hook portion, a volume of said thermoplastic material filling between 20%-40% of the cross sectional area of said hollow ball adjacent to the attachment of said hollow ball and said hook portion. 2. The spring clip of claim 1 wherein said spring clip and said hollow ball are formed by co-extruding said low-density polyethylene and said thermoplastic elastomer. 3. A spring clip for the rear discharge door of a lawnmower formed by co-extruding a low-density polyethylene forming a spring clip having an elongated portion and a hook portion and a thermoplastic elastomer forming a hollow ball onto said hook portion, a volume of thermoplastic elastomer filling between 20%-40% of the cross sectional area of said hollow ball.