US3457565A - Circumaural ear protector - Google Patents
Circumaural ear protector Download PDFInfo
- Publication number
- US3457565A US3457565A US571897A US3457565DA US3457565A US 3457565 A US3457565 A US 3457565A US 571897 A US571897 A US 571897A US 3457565D A US3457565D A US 3457565DA US 3457565 A US3457565 A US 3457565A
- Authority
- US
- United States
- Prior art keywords
- ear
- cup
- circumaural
- ear protector
- cups
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001012 protector Effects 0.000 title description 18
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
Definitions
- This invention relates, generally, to a noise attenuating device and, more particularly, to a circumaural ear protector to provide protection against loud noises accompanying industrial machinery, jet aircraft and the like.
- ear protectors commonly used for suppressing noise by the use of ear cups mounted on the ends of a headband is that the ear cups do not always fit, or fit comfortably against the earsurrounding portions of the head of the wearer, therefore cause not only discomfort but decrease the efiiciency of the ear cup seal against the head of the wearer.
- An object of our invention is to provide a novel circumaural ear protector and nape strap assembly, somewhat in the form of a headset, which will overcome the abovenamed disadvantages.
- a more specific object of our invention is to provide an ear protector, for suppressing noise, comprising a pair of ear cups adjustably mounted with relation to the ends of a nape strap for adjusting the angle of the cups with respect to the ends of the nape strap so as to provide a comfortable fit on varying head sizes of different wearers.
- FIG. 1 is a perspective view of a circumaural ear protector having a nape strap and adjustable means embodying the present invention
- FIG. 2 is a top view thereof showing, in dash and dot outline, a range of adjustability of the ear cups relative to the nape strap;
- FIG. 3 is a rear view of the nape strap alone and of the adjusting means shown in FIGS. 1 and 2;
- FIG. 4 is an enlarged plan view of the adjustment lever 4 shown in FIGS. 1, 2 and 3;
- FIG. 5 is a side view of the adjustment lever
- FIG. 6 is a cross-sectional view taken along line VIVI of FIG. 4;
- FIG. 7 is an exploded view showing the various parts of the left ear cup assembly.
- FIG. 8 is a vertical, cross-sectional view through one of the ear cup assemblies.
- numeral 1 generally denotes a circumaural ear protector embodying the present invention and comprising a pair of ear cups 2, of plastic or other suitable material, having detachably mounted on their mouth portions a fluid filled liner or cushion 25 (see FIGS. 7 and 8).
- the ear cups 2 are adjustably mounted, angularly, on the ends of a nape strap generally denoted by numeral 3 and comprising a substantially semi-circular "ice strip of spring metal 5, preferably covered by a plastic covering, such as a inch thick vinyl cover.
- the end portions 5 of the nape strap have terminals which project into a slot 11 of an adjustment lever, denoted generally by numeral 4.
- the terminals of the nape strap are provided with holes which are placed in registry with the hole 10 which extends through the adjusting lever 4, as shown more clearly in FIG. 8.
- a stepped or serrated handle portion Integrally mounted on the adjustment lever 4 is a stepped or serrated handle portion which is adapted to being turned about machine screw 6 as an axis, which screw is screw threaded into hole 14 of a metal cup boss 13 integrally formed in the rear portion of the cup 2, as shown more clearly in FIG. 8.
- the base portion 12, as well as the integral handle portion of the adjustment lever 4, are preferably made of suitable plastic material.
- each cup 16 is provided with a spongy insert 18 therein and has mounted on the mouth-forming edge a base plate 20.
- the insert has a V-shaped notch to provide a somewhat convex shape as shown in FIG. 8 when its perimeter rests against inner peripheral surface 17.
- the contact area provided by the base plate and cushion 24 has been narrowed at the top of the ear position. This allows the cup to be worn much lower on the head, making the possible use of safety hats, caps, bump caps, etc., in conjunction with the ear protector. The ear protector can thus be put on or removed without disturbing the head protection.
- Safety hats, caps, etc. can be worn in their normal position and do not need to be worn high on the head, as usually necessary to accommodate ear protection.
- Ring 20 of rigid plastic material is formed with a groove 21-22 which fits about the mouth portion 17 of the cup and serves as a base plate for supporting the cushion 24, which cushion is filled at 25 with a suitable fluid, such as glycerine or glycerine and water, sponge, grease, etc.
- An integral peripheral tab 23 is provided on cushion 24 which fits about the outer periphery of base plate 20 and the mouth 17 of cup 2 to form a seal. The lip is large enough to retain the ring 22 without using an elastic element, such as an O ring.
- the base plate, cushion and sponge cup insert are interchangeable from left to right hand.
- the cups and adjustment levers are either right or left handed.
- ear cups may be very easily adjusted .angularly with respect to the nape strap by a slight turn of an adjustment lever forming a component part of the ear cup to suit different head configurations and sizes; furthermore, we have provided adjusting means for a headset type of ear protector for equalizing cushion pressure on the head and for adjusting the snrina Patented July 29, 1969 pressure and the angle of the cups to suit not only the wearers own head configuration, but to provide a considerable amount of comfort in wear.
- a circumaural noise suppressing device comprising a pair of ear cups of substantially oval shape having liners about the mouth portions thereof for forming a tight fit about the ears of the wearer, a nape strap bent into substantially semi-circular shape in a plane substantially at right angles to the longitudinal axes of said cups, and adjusting means mounted on said ear cups and cooperating with the ends of said nape strap and including cam means operated by rotatable outwardly projecting levers for angularly adjusting the ear cups relative to the terminal portions of the nape strap so as to fit different head configurations and sizes of wearers.
- each of said ear cups is provided with a boss having a screw threaded opening
- an adjustment lever means comprising a base portion having a central hole in registry with said opening and having a slot at an angle of the order of 20 with respect to a plane perpendicular to the axis of said opening into which the ends of said nape strap project, a machine screw extending through said hole and threaded to said boss
- said adjustment lever means also including an integral lever portion extending outwardly for rotating said base portion and, by cam action, adjusting the angle of the end of the nape strap relative to the ear cup when rotated about the axis of said machine screw.
- each cup is provided with a ring-like rigid element fitted against the mouth portion of the corresponding cup, a cushion of annular shape supported on each said rigid element, and a substantially disc-shaped sponge insert bent into convex shape corresponding to but of greater radius than that of the cup with its perimeter supported against the rear surface of said rigid element.
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57189766A | 1966-08-11 | 1966-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3457565A true US3457565A (en) | 1969-07-29 |
Family
ID=24285499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US571897A Expired - Lifetime US3457565A (en) | 1966-08-11 | 1966-08-11 | Circumaural ear protector |
Country Status (1)
Country | Link |
---|---|
US (1) | US3457565A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2532838A1 (en) * | 1982-09-15 | 1984-03-16 | Minisonic Ag | EARPHONE TYPE ACOUSTIC PROTECTION APPARATUS |
US5035005A (en) * | 1990-07-27 | 1991-07-30 | Hung Huang C | Inflight headset for civil aircraft |
US5457751A (en) * | 1992-01-15 | 1995-10-10 | Such; Ronald W. | Ergonomic headset |
US5590213A (en) * | 1995-02-15 | 1996-12-31 | David Clark Company Inc. | Headset with adjustable headpad |
US5911314A (en) * | 1998-03-31 | 1999-06-15 | David Clark Company Inc. | Headset ear seal |
US6728388B1 (en) * | 1999-10-12 | 2004-04-27 | Sony Corporation | Headphone |
USD915348S1 (en) * | 2020-10-19 | 2021-04-06 | Shenzhen Qianhai Patuoxun Network And Technology Co., Ltd | Headphones |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486267A (en) * | 1945-06-02 | 1949-10-25 | Ross E Dulinsky | Adjustable earphone |
US2883672A (en) * | 1957-09-06 | 1959-04-28 | Mine Safety Appliances Co | Device for protecting ears from noise |
US2981958A (en) * | 1955-04-07 | 1961-05-02 | Clark Co Inc David | Ear protector |
-
1966
- 1966-08-11 US US571897A patent/US3457565A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486267A (en) * | 1945-06-02 | 1949-10-25 | Ross E Dulinsky | Adjustable earphone |
US2981958A (en) * | 1955-04-07 | 1961-05-02 | Clark Co Inc David | Ear protector |
US2883672A (en) * | 1957-09-06 | 1959-04-28 | Mine Safety Appliances Co | Device for protecting ears from noise |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2532838A1 (en) * | 1982-09-15 | 1984-03-16 | Minisonic Ag | EARPHONE TYPE ACOUSTIC PROTECTION APPARATUS |
US5035005A (en) * | 1990-07-27 | 1991-07-30 | Hung Huang C | Inflight headset for civil aircraft |
US5457751A (en) * | 1992-01-15 | 1995-10-10 | Such; Ronald W. | Ergonomic headset |
US5590213A (en) * | 1995-02-15 | 1996-12-31 | David Clark Company Inc. | Headset with adjustable headpad |
US5911314A (en) * | 1998-03-31 | 1999-06-15 | David Clark Company Inc. | Headset ear seal |
US6728388B1 (en) * | 1999-10-12 | 2004-04-27 | Sony Corporation | Headphone |
USD915348S1 (en) * | 2020-10-19 | 2021-04-06 | Shenzhen Qianhai Patuoxun Network And Technology Co., Ltd | Headphones |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MANUFACTURERS HANOVER COMMERICIAL CORPORATION, A C Free format text: SECURITY INTEREST;ASSIGNOR:C & D ACQUISITION CORP.;REEL/FRAME:003955/0272 Effective date: 19810730 Owner name: C & D ACQUISITION CORP., A CORP. OF DE., NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INCO SAFETY PRODUCTS COMPANY;REEL/FRAME:003955/0259 Effective date: 19810730 Owner name: MANUFACTURERS HANOVER COMMERICIAL CORPORATION, 121 Free format text: SECURITY INTEREST;ASSIGNOR:C & D ACQUISITION CORP.;REEL/FRAME:003955/0272 Effective date: 19810730 Owner name: C & D ACQUISITION CORP., 280 PARK AVE., NEW YORK, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INCO SAFETY PRODUCTS COMPANY;REEL/FRAME:003955/0259 Effective date: 19810730 |
|
AS | Assignment |
Owner name: WGM SAFETY CORP., SECOND AND WASHINGTON STS., READ Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INCO SAFETY PRODUCT COMPANY;REEL/FRAME:004030/0440 Effective date: 19820604 |