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Compressive bumper assembly

  • US 4,126,344 A
  • Filed: 04/02/1976
  • Issued: 11/21/1978
  • Est. Priority Date: 04/02/1976
  • Status: Expired due to Term
First Claim
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1. A compressive bumper assembly for an electrically powered vehicle comprising:

  • (a) bumper means for said vehicle;

    (b) tensile force means comprising four cantilever springs, one pair of said springs being rigidly secured at the ends between said bumper means and said vehicle, respectively, the other pair of springs respectively having one end connected to said bumper means, the other end being contiguous with said bumper means and free for sliding displacement thereon;

    (c) inextensible means connected between said bumper means and said vehicle to limit the maximum displacement of said bumper means from said vehicle, said inextensible means being collapsible under slightly compressive forces on said bumper means;

    (d) lever means, connected to said bumper means at one end, and having a cam surface at the other end, said lever means yieldingly collapsing under compressive substantially vertical forces;

    (e) switching means connected in series with the electric power source for said vehicle, comprising follower means, the displacement of said follower means defining the closed and open positions of said switching means, said follower means being contiguous with said cam surface, whereby when said bumper means is compressed, said follower means is displaced by said cam surface to said open position of said switching means.

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