Ring band adjustment structure of crash helmet
OwnerKuo-Yun Fanginventor
Life of this patent
Estimating the term…
Abstract
A ring band adjustment structure of a crash helmet comprises a ring band, a connection sheet, a guide bar, and a pair of locating adjusters. Two ends of the ring band are connected to the locating adjusters. The locating adjusters are connected to the guide bar so that the locating adjusters can move along a guide track formed at the edge of the guide bar. Through a control element in a slide grooves of the locating adjuster, a point-shaped unidirectional locating element on the bottom face of the inner end of the control element will leave from a corresponding strip-shaped unidirectional locating element of the locating bar on the guide bar, and the locating adjuster can move. Each end of the guide bar has a limit element so that the locating adjuster will not slide out.
Claims9
A ring band adjustment structure of a crash helmet, comprising:
- a ring band;
- a connection sheet of panel-shaped sheet;
- a guide bar connected to said connection sheet, guide slits being respectively disposed above and below between said guide bar and said connection sheet;
- a locating bar joined on said guide bar and divided into two symmetrically arranged halves, top faces of said two half locating bars respectively having strip-shaped unidirectional locating elements, which are arranged opposed to each other;
- and
- two locating adjusters each connected to one end of said ring band, a top side and a bottom side of said locating adjuster extending rearwards to form a pair of L-shaped locks, said pair of L-shaped locks being embedded in the guide slits of said guide bar to let said locating adjuster straddle said guide bar and move along the edge of said guide bar, each of said locating adjusters having a slit at a side face thereof to be penetrated into by said locating bar and having a slide groove at a front face thereof, said slide groove having a resilient element and a through groove connected with said slit therein, each of said locating adjusters having a control element partly inserted in said slide groove, an inner end of said control element being joined with the other end of said resilient element, said control element having a point-shaped unidirectional locating element extending toward said slide groove from a back face of an inner end thereof, said point-shaped unidirectional locating element being locked on said strip-shaped unidirectional locating element on said guide bar;
- whereby when said point-shaped unidirectional locating element in said control element leaves from said corresponding strip-shaped unidirectional locating element on said guide bar, the diameter of said ring band can be adjusted through the sliding of said locating adjusters.
Dependencies are inferred from the claim text.