Machine vendible expandable helmet and manufacture of same
A bicycle helmet that fits over a surface of a head of a user generally includes a segment of flexible cell structures that form a radial honeycomb matrix movable between a folded condition where each side of the segment is disposed generally parallel and an expanded condition where the radial honeycomb matrix of the segment is configured to be expanded at least partially over the head of the user and arranged radially relative to the surface of the head of the user. The bicycle helmet includes a first and second side frame disposed respectively at the first and second ends of the honeycomb matrix.
1. A bicycle helmet for fitting over a head of a user, the bicycle helmet comprising:
a segment of flexible cell structures that form a radial honeycomb matrix between first and second ends, the segment movable between a folded condition where each of the first and second ends of the segment are disposed generally parallel and an expanded condition where the radial honeycomb matrix of the at least one segment is configured to be expanded at least partially over the head of the user and arranged radially relative to the surface of the head of the user;
a first side frame disposed at the first end of the honeycomb matrix, the first side frame including a first hinge arm having a first finger extending therefrom, the first hinge arm defining a first notch adjacent to the first finger, the first finger having a first lip formed thereon; and
a second side frame disposed at the second end of the honeycomb matrix, the second side frame including a first locating ridge;
wherein during movement of at least one of the first and second side frames toward an expanded use position, the first finger (i) slidably moves across the second side frame causing the first finger to be initially deflected into the first notch followed by (ii) the first lip positively locating at the first locating ridge.
2. The bicycle helmet of claim 1 wherein movement of the first lip at the first locating ridge causes an audible sound and positive tactile feedback.
3. The bicycle helmet of claim 2 wherein the first side frame includes a second locating ridge and the second side frame includes a second hinge arm having a second finger extending therefrom, the second hinge arm defining a second notch adjacent to the second finger, the second finger having a second lip formed thereon;
wherein during movement of the at least one of the first and second side frames toward the expanded use position, the second finger (i) slidably moves across the first side frame causing the second finger to be initially deflected into the second notch followed by (ii) the second lip positively locating at the second locating ridge.
4. The bicycle helmet of claim 3 wherein movement of the second lip at the second locating ridge causes an audible sound and positive tactile feedback.
5. The bicycle helmet of claim 4 wherein the first and second hinge arms define a common aperture, the helmet further comprising a first axle that locates through the common aperture creating a first hinge assembly.
6. The bicycle helmet of claim 5 wherein the first axle includes a series of fingers that snapingly pass through the common aperture during assembly.
7. The bicycle helmet of claim 6 wherein the series of fingers collectively include a terminal ridge, wherein the series of fingers initially deflect inward until the terminal ridge clears the first and second hinge arms.
8. The bicycle helmet of claim 5 wherein the first side frame includes a third hinge arm having a third finger extending therefrom, the third hinge arm defining a third notch adjacent to the third finger, the third finger having a third lip formed thereon, the second side frame including a second locating ridge;
wherein during movement of at least one of the first and second side frames toward an expanded use position, the third finger (i) slidably moves across the second side frame causing the third finger to be initially deflected into the third notch followed by (ii) the third lip positively locating at the third locating ridge.
9. The bicycle helmet of claim 8 wherein the second hinge arm locates intermediate the first and third hinge arms, wherein the common aperture is further defined through the third hinge arm, the first axle passing through each of the first, second and third hinge arms.
10. The bicycle helmet of claim 1 , further comprising internal restriction straps disposed along an inside surface of the helmet, the internal restriction straps configured to limit expansion of the helmet beyond the expanded position.
11. The bicycle helmet of claim 5 wherein the internal restriction straps are coupled to the respective side frames.
12. The bicycle helmet of claim 1 further comprising a chin strap assembly connected to the first and second frame members.
13. The bicycle helmet of claim 1 wherein the flexible cell structures of the radial honeycomb matrix of the at least one segment are each configured to be located adjacent to and positioned generally perpendicular to a portion of the surface of the head of the user.
14. The bicycle helmet of claim 1 wherein the first and second frames are positioned parallel relative to each other in the folded position.
15. The bicycle helmet of claim 1 wherein the first and second frames rotate to a position beyond parallel in the expanded use position.
16. A bicycle helmet for fitting over a head of a user, the bicycle helmet comprising:
a segment of flexible cell structures that form a radial honeycomb matrix between first and second ends, the segment movable between a folded condition where each of the first and second ends of the segment are disposed generally parallel and an expanded condition where the radial honeycomb matrix of the at least one segment is configured to be expanded at least partially over the head of the user and arranged radially relative to the surface of the head of the user;
a first side frame disposed at the first end of the honeycomb matrix, the first side frame including:
a first hinge arm having a first finger extending therefrom, the first hinge arm defining a first notch adjacent to the first finger, the first finger having a first lip formed thereon;
a third hinge arm having a third finger extending therefrom, the third hinge arm defining a third notch adjacent to the third finger, the third finger having a third lip formed thereon; and
a second locating ridge;
a second side frame disposed at the second end of the honeycomb matrix, the second side frame including:
a second hinge arm having a second finger extending therefrom, the second hinge arm defining a second notch adjacent to the second finger, the second finger having a second lip formed thereon; and
a first and third locating ridge;
wherein during movement of at least one of the first and second side frames toward an expanded use position;
the first finger (i) slidably moves across the second side frame causing the first finger to be initially deflected into the first notch followed by (ii) the first lip positively locating at the first locating ridge;
the second finger (iii) slidably moves across the second side frame causing the second finger to be initially deflected into the second notch followed by (iv) the second lip positively locating at the second locating ridge; and
the third finger (v) slidably moves across the first side frame causing the third finger to be initially deflected into the third notch followed by (vi) the third lip positively locating at the third locating ridge.
17. The bicycle helmet of claim 16 wherein the second hinge arm locates intermediate the first and third hinge arms.
18. The bicycle helmet of claim 17 wherein the first, second and third hinge arms define a common aperture, the helmet further comprising a first axle that locates through the common aperture creating a first hinge assembly.
19. The bicycle helmet of claim 18 wherein movement of the first lip at the first locating ridge causes an audible sound and positive tactile feedback.
20. The bicycle helmet of claim 19 wherein the first and second frames are positioned parallel relative to each other in the folded position and rotate to a position beyond parallel in the expanded use position.