US2549964A

US2549964A - Shutter mechanism

Info

Publication number: US2549964A
Application number: US613996A
Authority: US
Inventors: Robert D Dening
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-09-01
Filing date: 1945-09-01
Publication date: 1951-04-24
Anticipated expiration: 1968-04-24

Description

April 24, 1951 R. o. DENING SHUTTER MECHANISM Filed Sept. 1, 1945 Max:207:-

5" WWW flit-22 2463 fatented Apr. 24, 1951 UNITED STATES PATENT OFFICE SHUTTER MECHANISM Robert D. Dening, Long Beach, Calif.

Application September 1, 1945, Serial No. 613,996

7 Claims.

This invention relates to shutter mechanism for use in connection with welders helmets, goggles, and the like.

In the helmets or goggles ordinarily used, the inspection apertures are permanently closed by a light screening shield, and it is necessary for the operator to reach up to raise the entire helmet or the goggles above the level of his eyes, when unobstructed observation or inspection is necessary. This isa slow and cumbersome operation, seriously delaying and affecting a smoothly running course of operation.

It is the general object of my invention to provide in such helmet or goggles a movable light screening shield. More particularly, it is my object to provide a very light, compact, and conveniently operable mechanism for moving such shield. A further object is to provide a slidable screen which is constructed and connected for movement in response to suction and blow of the operators mouth through a tube attached to the device.

Other objects and the many advantageous features of the invention will be best understood upon perusal of the following detailed description, and drawings are hereto appended in which preferred forms of the invention are shown.

In the drawings: Fig. l is a front view of a goggle structure embodying the invention, and with parts thereof broken away for the sake of clearness;

Fig. 2 is an endview of the device with a portion thereof broken away in order better to illustrate the interior mechanism thereof;

Fig. 3 is a front View showing a somewhat modified form of the invention;

Fig. 4 is a cross-sectional endview showing the device of the invention constructed for attachment to a welders helmet.

The structure of Figs. 1 and 2 comprises right .and left goggles I and 2, which functionally may be exactly alike. Description of one will, for this reason, pertain equally to the other and structural differences will be fully discussed below. The general outline of the lower portion of the goggles follows the design of the conventional eyecups, the outer sideedges of which are ex- I 2 oblong chamber 1, and the lens is slidably fitted within the lower part thereof.

The upper part of the chamber is shown occupied by an inflatable and deflatable member in the form of a thin, elastic rubber bag 8, the neck 9 of which is anchored in a recess formed at the top of the chamber. The bottom of the bag is at It! shown cemented or otherwise suitably fastened to the upper edge of the lens. An air passage II, at the top of the framing, communicates with the passage through the neck 9 of the bag, and a light, flexible air hose [2 is suitably fitted into this passage. The hose terminates in a mouthpiece l3 which the wearer, for convenience, may retain in his mouth during welding operations.

As stated, the lens normally rests within the bottom of the framing so as to shield the eyes of the welder who, at any time, by suction through the hose [2 may draw the lens upward substantially into the position indicated in Fig. 2. The suction causes the bag to collapse into the deflated position shown in this view, and it may be found preferable in order for the bag to fold up evenly and smoothly, to cement the I upper half-portion thereof to the casing wall. It

may also be found advantageous to provide a narrow recess M in the chamber wall, within which any minute portion of the bag material may gather when the bag is collapsed to raise the lens. In order to make-room for the bag material, it is required slightly to enlarge the space within the upper portion of the chamber,

and when carefully fitted, it is found that the lens will remain in elevated position until, by a.

blow through the hose, it is forced back into normal position.

It was above stated that the two goggle frames may be substantially alike, and the only difference is that one of the framesis extended, as indicated at [6, to receive a flexible tubing 11, operatively to interconnect the two frames. This completes the device, except that a clear-glass lens may be placed in front of the eye shield, substantially as indicated at [8 and as usual in practice.

In Figs. 3 and 4, the device of my invention is shown applied to a welders helmet 20 and, in place of two, a single frame is employed to support a full width lens or eye shield 2| and clear glass lens 28. This frame is made similar to the goggle frame, in two half-

portions

22, 23, which may be riveted to the helmet in the conventional manner, or may be fastened thereto by means of screws 24, so that it may be taken without inconvenience to the wearer thereof and which may be operated by suction through the .mouthpiece, thus leaving both hands fi ee and the eyes of the welder fixed on the work. But while the drawings are illustrative of my'invention, they do not necessarily represent the best engineering practice, and modifications ofshapes and arrangements, within the scope of the-claim hereto appended, may be embodied therein. :I :claim:

1. A shutter mechanismfor a welders helmet or. goggles comprising, a framing vertically divided into two shallow portions, means for clamping the two portions together, an eye .shieldinglens fittingly seated within the lower portion'of the framing, an inflatable and deflatable member within the upper portion of the framing and operatively connected to the upper edge of ithe lens, there being recesses formed at 'the topof the two frame portions to provide a conduitc'ommuriicating with the said member, and an air hose seatablein said conduit, said 'hose terminating in a .mouthpiece, suction "through "which causes the'member to become deflated and todraw the lens into the upper portion of t he framing.

12. 'Ash' tter mechanismfor a welders helmet or goggles comprising, a framing vertically div'ide'd into two "shallow half-portions, a lens fittingly seated within the lower portion of the "framinga flat circular inflatable bag mounted within the upper portion of the framing and operatively connected at'the'bottom thereof to "the upper edge of said'lens, and an air hose attachableZ-to the framing and communicating with 'said' b'ag, suction through said hose'causing the bagto bollapseand to draw the lens into the upper-portion of the framing, there being a narrow recess in the inner wallof the framing substantially diametrically across the'bag' for receiving any minute surface material thereof. as

" .the ibagreaches collapsed position.

3. A shutt'er mechanism for goggles consisting .oft'woi'framings, each'comprising a frame verti- 'callydividedinto two shallow half-portions providing a single chamber therebetween, an eye :shielding lens fittingly seated within the lower -portion 'of eachchamber and movable into the upperportionthereof, an inflatable and deflatablemember mounted within the upper portion of 'eachcha'mber andv operatively connected to the i upper edge of the lens seated therein for moving the lens into said upper frame portion,

there beinga recessin the upper portion of one of the frames forming a conduit leadinginto the inflatable member seated therein and a recess 4 l traversely extending through the upper portion of the other frame to form a conduit connecting with the inflatable member seated therein, a.

flexible tube operatively interconnecting the two conduits, and a flexible air-tube seated in the open end of the said transverse conduit.

4. A shutter mechanism for a welders helmet or goggles comprising, a framing vertically divided into two shallow half-portions providing a single chamber therebetween, an'eye shielding lens fittingly seated within the lower portion of the chamber and movable into the upper portion of the chamber, an inflatable and deflatable member-within the upper portion of the chamber and operatively connected to the upper edge of .said lensfand an air conduit attachable to the framing andcommunicating with said member.

5. A shutter mechanism for a welders helmet .or :goggles comprising, a framing divided into two half-portions providing a single vertically direotedchamber therebetween, an eye shielding lens fittingly'seated within the lower portion of the chamber and movable intothe-upper portion of the chamber, an inflatable and deflatable member within the upper portion of the chamber and operatively connected to the upper edge of said lens, and an air conduit attachable to the framing and communicating with said member.

6. A shutter mechanism for a welders helmet or goggles comprising, a framing vertically divided into two shallowhalf-portions providing a single chamber therebetween, an eye shielding lens flttingly-seated within the lower portion of the-chamber, there being an aperture through the lower portion of the framing in registration with and somewhat'smaller than the said lens, an inflatableand deflatable member mounted within the upper portion of the chamber and operatively connectedto the pepper edge of said lenaand an air hose attachableto the framing and communicating with said member. 7 v

'7. A shutter mechanism for a welders helmet or goggles comprising, a framing vertically divided into two shallow half portions providing a single chamber therebetween, means for clamping-thetwo'portions together, an eye shielding len flttingly sea-ted within thelower portion of the chamber, there being an aperture through thelower portion of the framing in registration with and somewhat smaller than said lens, an inflatable andvdeflatable mernb er mounted within the upper portion of the chamber-and operatively connected to the upper edge of the lens, an air hose attachableto the framing and communicating with said member, and a clear glass lensin the aperture of theframing in 'f'ront ofisaid eye, shielding lens.

"RUBERT D. DENING.

Name Date 1,986,688 Thiele Jan. 1,1935