# US 4,397,047 A · Device for the controlled lifting of helmet visors and the like

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- Number: US 4,397,047 A
- Document ID: US4397047A
- Status: Granted
- Kind: A
- Application number: 06/281,696
- Filed: 1981-07-08
- Granted: 1983-08-09
- Earliest claimed: 1980-07-11
- Inventors: Pier L. Nava
- Web page: https://patentgrep.com/patent/US4397047A

## CPC

- A42B 3/222: {in an articulated manner, e.g. hinge devices}
- A42B: HATS; HEAD COVERINGS (headbands A41D20/00; head-scarves A41D23/00)

## Abstract

The device (FIG. 1) is provided in combination with helmet A and related vizor B, with a box shaped gear and pinion assembly 10, secured by pin 12 to helmet A. A gear wheel 14, secured to side wall A of the helmet, engages, via pinion 20 held by gear and pinion assembly 10, with a sector gear (rack) 24 also secured to said gear and pinion assembly which is torsionally connected to the end of vizor B. When assembly 10 is caused to oscillate in the clockwise direction to lift vizor B, a complementary counter-clockwise oscillation is imparted to same to permit complete lifting of the vizor, so that its top edge may approach and fit tightly over the surface of helmet A.

## Claims

### Claim 1

Device to effect controlled lifting of the visors of helmets and similar headgear, in particular in-built visors, comprising a pair of gear and pinion assemblies to connect movably the ends of a visor to a helmet and actuating means in at least one of the elements of the pair of gear and pinions assemblies, operatively securable to the helmet and visor, to impart to the visor a complementary oscillation during its lifting in order to set it closer to the helmet outer surface.

### Claim 2 (depends on 1)

Device according to claim 1, wherein said gear and pinion assembly includes pins connected to each other by the kinematic train in said gear and pinion assembly, said assembly consisting at least in part of rotating elements relating to said asssembly, so that any angular movement imparted to the gear and pinion assembly in a given direction will correspond to an equivalent shifting of the visor.

### Claim 3 (depends on 1, 2)

Device according to claim 1 or claim 2 wherein said gear and pinion assembly is at least in part box-shaped to house at least a part of the kinematic train relevant to said pins.

### Claim 4 (depends on 2)

Device according to claim 2, wherein one of said pins of said gear and pinion assembly is secured to one end of said assembly and engages rotatably in a bushing securable to the wall of said helmet, said bushing being provided with a flange forming the first element of the kinematic train which houses said pins of said gear and pinion assembly.

### Claim 5 (depends on 1, 2)

Device according to claim 1 or claim 2, wherein said gear and pinion assembly is provided, on its other end, with a disc constituting the last element in the kinematic train which connects pins of the gear and pinion assembly to each other and which disc is provided with a polygonal hub securable torsionally to a visor.

### Claim 6 (depends on 2)

Device according to claim 2, wherein said kinematic train connecting to each other pins of said gear and pinion assembly consists of gear sectors, the first and last of which are firmly holdable by the helmet and visor, respectively.

### Claim 7 (depends on 2)

Device according to claim 2, wherein said gear and pinion assembly is provided, adjacent to its movable end, with a shaped lug which forms a grip for the user.

### Claim 8 (depends on 1, 2)

Helmet, in particular sports helmet, fitted with the actuating device according to claim 1 or claim 2.

### Claim 9 (depends on 8)

Helmet according to claim 8, having ledges on the walls which hingedly support said visor to house the two lifting devices for the visor.