US3786203A - Microphone mounting - Google Patents
Microphone mounting Download PDFInfo
- Publication number
- US3786203A US3786203A US00253080A US3786203DA US3786203A US 3786203 A US3786203 A US 3786203A US 00253080 A US00253080 A US 00253080A US 3786203D A US3786203D A US 3786203DA US 3786203 A US3786203 A US 3786203A
- Authority
- US
- United States
- Prior art keywords
- housing
- microphone
- opening
- receptacle
- audio
- 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
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
Definitions
- ABSTRACT A mounting for positioning a miniature microphone relative to a structure such as a telephone handset cradle.
- the mounting firmly positions the microphone in a manner for reception of sound and provides a resilient shock and sound absorbing mounting into which the microphone may be readily assembled without the need for additional mounting members.
- miniature microphones take many forms.
- Themain criterion which each mounting must satisfy is that it position the microphone to receive whatever audio signals the microphone is being used to receive.
- the mounting should physically hold the microphone firmly in this position, and should provide some form of shock-face mounting and acoustic isolation.
- the. microphone is essentially disc shaped, drops onto a flanged platform in the rigid plastic housing.
- a cup-shaped mouthpiece of rigid plastic peripherally threaded screws into the threaded inner wall of a tubular housing to firmly grasp and hold the microphone.
- the base of the cup is suit ably perforated to provide audio inlet openings in communication with the microphone sound openings.
- the present invention provides a mounting structure for holding a transducer such as a microphone.
- the microphone shown is a miniature one of the type frequently referred to as a hearing aid microphone.
- the microphone as shown is a small rectangular block but could, in fact, be disc-shaped or any other regular shape.
- In one wall of the microphone is an audio opening.
- the microphone rests within a housing shaped to receive the microphone and between the housing and microphone is fitted a resilient cup-shaped receptical to fit about and conform to the shape of the microphone and to rest tightly within the housing.
- the receptacle has an opening in one face larger than that of the microphone audio opening and designed to be aligned therewith.
- FIG. 1 is a perspective view of a telephone base employing my invention
- FIG. 2 is a front view in elevation of the housing of FIG. 1;
- FIG. 3 is a side view in elevation of the housing of FIG. 2;
- FIG. 7 is a front view in elevation of a microphone as shown in FIG. 1;
- FIG. 8 is a side view in elevation of the microphon of FIG. 7.
- FIG. 1 I show the base of a telephone instrument with a sloping front face 12, the front face including a dial 14, key telephone line buttons 16 and a loudspeaker opening 18.
- a cradle 20 cantilevered from the interior of the instrument.
- the cradle receives a handset (not shown). With the handset on the cradle, the cradle is depressed placing the handset in an ON-hook condition. Removal of the handset allows the cradle to rise closing or opening switch contacts, as necessary to place the instrument in an OFF-hook condition. This operation is very well known and need not be detailed herein further.
- a microphone housing 30 mounted on this cradle is a microphone housing 30, the housing being a generally rhomboidal prism or rigid plastic shell as shown best in FIGS. 2 and 3.
- the housing 30 has a main body 32 with side wings 34 for mounting on the hand-set cradle 20.
- the side wings have socket bores 36 for affixing thereto suitable mounting members, not shown.
- the housing has a generally rhomboidal cavity 40 with a bottom opening 42.
- the front face 50 of the housing has an audio opening 52 to'open to cavity 40, the opening being approximately centrally located in the front face 50.
- the housing is otherwise generally imperforate.
- the front face 50 terminates in a protruding base edge adapted to rest on the cradle, the protrudingedge causing small triangular openings between each housing side wall 54, and the level cradle top surface.
- the rear face of the housing has a rhomboidal inset 56 in its lower edge.
- a microphone support receptacle 60 (shown in detail in FIGS. 4-6), which is generally thin-walled, resilient member of rubber or the like with generally rectangular outer and inner contours.
- the receptacle may preferably be a molded onepiece member as will now be described.
- Receptacle 60 is open at one end, suitably closed at the other, and in its front face 62 has a centrally located audio opening 64 considerably larger than that of the housing opening 52.
- the receptacle is otherwise imperforate in its walls and top end.
- the front face 62 of the receptacle has a thick-walled section 66 which is circular in extend about the audio opening 64, and a wide wall 67 extending for the full height of the face.
- the front face has its bottom edge 68 inturned slightly as viewed in FIG. 6.
- Both side walls 70 of the receptacle have on their outer surface, integral top to bottom continuous ribs 72, one rib per side.
- On the rear face 74 of the receptacle are three top to bottom, continuous ribs 76 spaced apart along the face.
- the ribs 72 and 76 are comparatively narrow in width and are slightly more protrusive than they are wide, so that they do not greatly stiffen the walls of the receptacle.
- the receptacle has an inset 78 at the base of its rear wall. Dimensionally, across the ribs dimensions of the exterior of the receptacle may be nominally the same or slightly less than those of the cavity to ensure a tight fit within the housing.
- a microphone 70 of the type frequently called a hearing aid microphone Adapted to fit within the receptacle is a microphone 70 of the type frequently called a hearing aid microphone, and shown in detail in FIGS. 7 and 8.
- the microphone has a metallic closed casing 82 of generally rectangular cross-section throughout. At its rear bottom edge are two spaced-apart terminals 84 for connection to suitable conductors. Centrally located in its front face is an audio opening 86 which provide the acoustic input to the microphone interior.
- the receptacle 60 is sized to stretch and bulge somewhat, both rearwardly and sidewise, when the microphone is inserted therein, with the microphone terminals 84 extending from inset 78. With the receptacle bulged, the microphone rests tightly within the receptacle. The microphone audio opening is aligned at about the center of the receptacle with its top wall resting against the inside end wall of cavity 40. In assembling the unit microphone and receptacle into the housing, the receptacle with microphone is pushed into the housing cavity with the ribs of the bulged receptacle having a definite tight interference fit in the housing cavity.
- Housing rear wall inset 56 provides a space for wires to connect the terminals electrically to the interior of the instrument.
- the microphone fits tightly in the receptacle and the receptacle tightly in the housing.
- the microphone audio opening is in open communication with the housing audio opening through the oversized receptacle opening.
- the lower end of the microphone is inset in the receptacle to allow the bottom edge of the receptacle to yield inwardly at inturned edge 68 and position the microphone spaced above the base of the receptacle.
- the receptacle With the receptacle fully inserted in the housing, the receptacle holds the bottom end of the microphone spaced above the base of the housing.
- the thick-walled circular section 66 on the front face of the receptacle forms an audio seal against the adjacent interior face of the housing cavity with the microphone tightly held against the receptacle inside face.
- the ribs on the receptacle provide a shock mounting for the microphone positioning the microphone suitably within the housing, and only the housing needs to be mounted by screws or the like to the instrument. Further, the resilient ribs allow the parts to be made to less than rigid tolerances since most variances will be compensated for by the receptacle ribs.
- the resilient material around the microphone dampens sound vibrations transmitted by a speaker and carried through the telephone structure.
- one side edge of the receptacle will rest against the adjacent housing wall at approximately the level of the cradle top surface, the other side edge of the receptacle being spaced from the cradle surface due to the side inclination of the housing as can be seen in FIGS. 1 and 2. In this way, the positioning of the receptacle relative to the housing will remain and will keep the microphone from the cradle top surface under most normal conditions.
- the exposed end of the microphone is within the confines of the adjacent side, front and rear walls of the receptacle and the receptacle is inset a distance from the bottom of the housing.
- the housing is detached from the cradle and the receptacle, though tightly lodged in the housing, may be pulled from the cavity carrying with it the microphone.
- a new microphone may be readily inserted into the receptacle and housing and its audio opening will be readily aligned with the housing audio opening.
- the replacement microphone will be lodged tightly within the receptacle and housing, fully shock mounted with its audio seal about the audio opening.
- a microphone mounting assembly adapted to mount a microphone having an audio opening in one face thereof within a closed, generally rigid one-piece housing with an audio opening in one face of the housing and wherein said housing has a mounting opening at one end thereof for connection to a mounting surface, a resilient, one-piece elastomeric, yieldable receptacle structure open at one end, said receptacle structure shaped in close conformance with the contours of said microphone to tightly receive the microphone therein, said receptacle structure having an open end for allowing said microphone to slideably enter the interior thereof causing said structure to yield and bulge outwardly during and after said entry, a cavity in said housing in communication with said open end thereof for receiving said structure therein in tightfitting relation, an audio opening in said structure larger than the microphone audio opening, said structure opening positioned from the end wall of the housing to align the microphone with housing opening on full insertion of the structure into the housing, and lip means on said structure adjacent the open end thereof for maintaining said microphone within the housing with the audio openings in alignment.
Abstract
Description
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25308072A | 1972-05-15 | 1972-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3786203A true US3786203A (en) | 1974-01-15 |
Family
ID=22958750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00253080A Expired - Lifetime US3786203A (en) | 1972-05-15 | 1972-05-15 | Microphone mounting |
Country Status (3)
Country | Link |
---|---|
US (1) | US3786203A (en) |
CA (1) | CA985776A (en) |
GB (1) | GB1423045A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030218406A1 (en) * | 2001-03-28 | 2003-11-27 | Sears Intellectual Property Co. | Multiple configuration shelving system for displaying audio visual components |
US11114102B2 (en) * | 2019-01-16 | 2021-09-07 | Lg Electronics Inc. | Appliance including voice recognition device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2718563A (en) * | 1951-04-04 | 1955-09-20 | Dictograph Products Co Inc | Microphone |
US3038038A (en) * | 1959-10-29 | 1962-06-05 | Maico Electronics Inc | Acoustical instruments |
US3048668A (en) * | 1961-04-17 | 1962-08-07 | Beltone Hearing Aid Company | Transducer suspension system |
US3257516A (en) * | 1962-06-25 | 1966-06-21 | Knowles Electronies Inc | Combined instrument and transducer motor cavities for acoustic instrument |
-
1972
- 1972-05-15 US US00253080A patent/US3786203A/en not_active Expired - Lifetime
-
1973
- 1973-05-04 GB GB2123573A patent/GB1423045A/en not_active Expired
- 1973-05-14 CA CA171,218A patent/CA985776A/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2718563A (en) * | 1951-04-04 | 1955-09-20 | Dictograph Products Co Inc | Microphone |
US3038038A (en) * | 1959-10-29 | 1962-06-05 | Maico Electronics Inc | Acoustical instruments |
US3048668A (en) * | 1961-04-17 | 1962-08-07 | Beltone Hearing Aid Company | Transducer suspension system |
US3257516A (en) * | 1962-06-25 | 1966-06-21 | Knowles Electronies Inc | Combined instrument and transducer motor cavities for acoustic instrument |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030218406A1 (en) * | 2001-03-28 | 2003-11-27 | Sears Intellectual Property Co. | Multiple configuration shelving system for displaying audio visual components |
US7334852B2 (en) * | 2001-03-28 | 2008-02-26 | Sears Brands, L.L.C. | Multiple configuration shelving system for displaying audio visual components |
US11114102B2 (en) * | 2019-01-16 | 2021-09-07 | Lg Electronics Inc. | Appliance including voice recognition device |
Also Published As
Publication number | Publication date |
---|---|
GB1423045A (en) | 1976-01-28 |
CA985776A (en) | 1976-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ITT CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION;REEL/FRAME:004389/0606 Effective date: 19831122 |
|
AS | Assignment |
Owner name: U.S. HOLDING COMPANY, INC., C/O ALCATEL USA CORP., Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE 3/11/87;ASSIGNOR:ITT CORPORATION;REEL/FRAME:004718/0039 Effective date: 19870311 |
|
AS | Assignment |
Owner name: ALCATEL USA, CORP.,STATELESS Free format text: CHANGE OF NAME;ASSIGNOR:U.S. HOLDING COMPANY, INC.;REEL/FRAME:004827/0276 Effective date: 19870910 Owner name: ALCATEL USA, CORP. Free format text: CHANGE OF NAME;ASSIGNOR:U.S. HOLDING COMPANY, INC.;REEL/FRAME:004827/0276 Effective date: 19870910 |