Helmet shield attaching mechanism

Patent metadata

Field	Value
Publication number	US-9402434-B2
Application number	US-201414248804-A
Country	US
Kind code	B2
Filing date	Apr 9, 2014
Priority date	Jun 3, 2013
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

This invention provides a helmet shield attaching mechanism capable of relatively easily and relatively accurately performing an adjustment operation for satisfactorily bringing the inner surface of a shield in a substantially fully-closed state into close contact with the window opening rim portion of a head protecting body. The holding position of stopped means of a movable base member, whose position is held by stopper means of a stationary base member in an at least substantially fully-closed state of the shield, can be selected from one of a plurality of portions of the movable base member substantially in the back-and-forth direction.

First claim

The invention claimed is:

1. A helmet shield attaching mechanism comprising:
a shield attaching base member attaching to a head protecting body, and a shield whose region including one of a left end and a right end and a vicinity thereof rotatably attaches to said shield attaching base member,
said shield attaching base member comprising a stationary base member attaching to said head protecting body, and a movable base member attaching to said stationary base member so as to be movable forward and backward substantially in a back-and-forth direction with respect to said stationary base member, and
said shield being substantially rotatably supportable by said movable base member, wherein
said stationary base member comprises stopper means,
said movable base member comprises stopped means whose position is held by said stopper means in an at least substantially fully-closed state of said shield, and
when a holding position of said stopped means whose position is held by said stopper means in the at least substantially fully-closed state of said shield is selected from one of a plurality of portions of said movable base member substantially in the back-and-forth direction, the holding position substantially in the back-and-forth direction of said shield with respect to said head protecting body in the at least substantially fully-closed state is selected,
the helmet shield attaching mechanism further comprising:
elastic biasing means capable of elastically biasing said movable base member substantially backward to said stationary base member;
a shield position adjustment pivotal manipulation member attached to one of said movable base member and said stationary base member so as to be able to rotate;
rotation preventing means provided on the one of said movable base member and said stationary base member; and
back-and-forth positioning means provided on the other of said movable base member and said stationary base member,
said pivotal manipulation member comprising a plurality of first recess/projection engaging means configured to selectively engage with said back-and-forth positioning means, and a plurality of second recess/projection engaging means configured to selectively engage with said rotation preventing means,

wherein when said back-and-forth positioning means selectively engages with one of said plurality of first recess/projection engaging means, the holding position substantially in the back-and-forth direction of said shield is selected, and when said rotation preventing means selectively engages with one of said plurality of second recess/projection engaging means, unwanted pivot of said pivotal manipulation member is prevented,
wherein said shield position adjustment pivotal manipulation member comprises a pivotal manipulation button located between said head protecting body and said shield such that a whole outer surface of the pivotal manipulation button is covered by the shield when in the substantially fully-closed state, and
wherein a cam face is provided on one of said stationary base member and said shield,
a cam follower portion is provided on the other of said stationary base member and said shield, and
when a force that substantially raises said shield in the substantially fully-closed state is applied to said shield, said cam follower portion relatively follows said cam face so that said shield also moves substantially forward.

2. A mechanism according to claim 1 , wherein said movable base member is configured to be substantially linearly movable forward and backward substantially in the back-and-forth direction with respect to said stationary base member.

3. A mechanism according to claim 1 ,
wherein in the at least substantially fully-closed state, said stationary base member is elastically biased by said elastic biasing means and held at a backward moving position so as to make said stopped means abut against said stopper means.

4. A mechanism according to claim 1 , wherein said stopped means comprises a plurality of stopped means.

5. A mechanism according to claim 1 , wherein the number of said stopped means is 3 to 7.

6. A mechanism according to claim 1 , wherein the number of said stopped means is 4 to 6.

7. A mechanism according to claim 1 , wherein the number of said plurality of second recess/projection engaging means is 3 to 7.

8. A mechanism according to claim 1 , wherein the number of said plurality of second recess/projection engaging means is 4 to 6.

9. A mechanism according to claim 1 , wherein positions of said stopped means are held by said stopper means only in the substantially fully-closed state and a substantially fully-open state of said shield.

10. A mechanism according to claim 1 , wherein said shield comprises a finger rest provided in a region including a lower end and a vicinity thereof of at least one of a left portion and a right portion of said shield, said finger rest being inclined downward substantially from a rear side substantially to a front side.

11. A mechanism according to claim 1 , wherein said cam face comprises a stopper recess configured to hold said shield at a substantially fully-closed position, an inclined surface configured to move said shield substantially forward, and a click tooth portion configured to hold said shield stepwise.

12. A mechanism according to claim 1 , wherein a shield attaching/removing manipulation member manipulated to remove said shield from said movable base member is disposed on said movable base member so as to be movable forward and backward, and
when said shield is rotated forward to the substantially fully-open state, and thereafter, said shield attaching/removing manipulation member is moved forward, a removable state of said shield is obtained.

Assignees

• Shoei Co Ltd

Inventors

• Isobe Eiji

Classifications

• A42B3/223 Primary

  with means for locking the visor in a fully open, intermediate or closed position · CPC title