Patent US4365113A successfully refreshed from Google Patents.
US4365113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speaker unit for automotive vehicles
Assignee: Pioneer Corp
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Filing: 1980-09-12
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Granted: 1982-12-21
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Expires: 2000-09-12
Abstract
Abstract A speaker unit for an automotive vehicle including a woofer speaker flush mounted with the rear parcel shelf of the vehicle with a tweeter or medium- and high-range speaker unit mounted to the rear of the woofer speaker. The tweeter speaker is directed toward the passenger compartment of the vehicle. A woofer frame is detachably coupled around the outer edge of the woofer speaker. The woofer frame supports a grill which extends as well over the tweeter speaker. A sound diffuser is positioned over the open surface of the tweeter speaker.
Inventors
- 👤 Hiroshi Soma
- 👤 Makoto Iyobe
- 👤 Takekazu Iijima
- 👤 Yutaka Moriyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:38
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/20; H04R1/22; H04R1/26; H04R1/32; H04R1/323; H04R1/34; H04R1/345
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
108 words
A speaker unit for an automotive vehicle, comprising: a low-range speaker; a medium- and high-range speaker; means for fixedly connecting said low-range speaker and said medium- and high-range speaker so that their central axes intersect in a side section; grill frame detachably coupled with a peripheral surface of said low-range speaker; a low-range speaker grill member mounted in said grill frame for covering an open surface of said low-range speaker; said medium- and high-range speaker being fixedly connected to said low-range speaker by said connecting means so that said medium- and high-range speaker is located in an area outside an area confined by said low-range speaker grill member.
Claim 2
Dependent Claim
108 words
A speaker unit for an automotive vehicle, comprising: a low-range speaker; a medium- and high-range speaker; means for fixedly connecting said low-range speaker and said medium- and high-range speaker so that their central axes intersect in a side section; grill frame detachably coupled with a peripheral surface of said low-range speaker; a low-range speaker grill member mounted in said grill frame for covering an open surface of said low-range speaker; said medium- and high-range speaker being fixedly connected to said low-range speaker by said connecting means so that said medium- and high-range speaker is located in an area outside an area confined by said low-range speaker grill member.
Claim 3
Dependent Claim
18 words
The speaker unit of claim 1 further comprising a sound diffuser mounted adjacent said medium- and high-range speaker.
Claim 4
Dependent Claim
34 words
The speaker unit of claim 1 wherein said connecting means comprises a medium- and high-range speaker holder, a woofer frame, and a bolt, said holder being connected to said woofer frame by said bolt.
Claim 5
Dependent Claim
46 words
The speaker unit of claim 1 wherein a substantial portion of sound reproduced by said low-range speaker is directly radiated into a passenger compartment of said automotive vehicle through said low-range speaker grill member without being substantially reflected and attenuated by said medium- and high-range speaker.
Claim 6
Dependent Claim
132 words
A speaker unit for an automotive vehicle, comprising: a low-range speaker having a woofer frame to which an outer peripheral edge of a diaphragm of said low-range speaker is attached, said woofer frame being adapted to be flushly mounted to a rear parcel shelf of said automotive vehicle; a tweeter holder rigidly mounted upon a rear edge of said woofer frame, said holder being adapted to support a tweeter unit having a tweeter speaker having a central axis directed towards a passenger compartment of said vehicle, said tweeter speaker being positioned in said tweeter holder; a woofer grill frame detachably coupled around said low-range speaker; and a low-range grill member supported by said grill frame covering said diaphragm, said holder occupying an area outside an area confined by said low-range grill member.
Claim 7
Dependent Claim
132 words
A speaker unit for an automotive vehicle, comprising: a low-range speaker having a woofer frame to which an outer peripheral edge of a diaphragm of said low-range speaker is attached, said woofer frame being adapted to be flushly mounted to a rear parcel shelf of said automotive vehicle; a tweeter holder rigidly mounted upon a rear edge of said woofer frame, said holder being adapted to support a tweeter unit having a tweeter speaker having a central axis directed towards a passenger compartment of said vehicle, said tweeter speaker being positioned in said tweeter holder; a woofer grill frame detachably coupled around said low-range speaker; and a low-range grill member supported by said grill frame covering said diaphragm, said holder occupying an area outside an area confined by said low-range grill member.
Claim 8
Dependent Claim
20 words
The speaker unit of claim 5 further comprising a sound diffuser positioned over the open surface of said tweeter speaker.
Claim 9
Dependent Claim
43 words
The speaker unit of claim 5 wherein a substantial portion of sound reproduced by said low-range speaker is directly radiated into a passenger compartment of said automotive vehicle through said low-range grill member without being substantially reflected and attenuated by said tweeter speaker.
Claim 10
Dependent Claim
28 words
The speaker unit of claim 1 or 5 further comprising a medium- and high-range speaker grill member for covering an open surface of said medium- and high-range speaker.
Claim 11
Dependent Claim
23 words
The speaker unit of claim 8 wherein said low-range speaker grill member and said medium- and high-range speaker grill member are integrally formed.
References Cited (Backward Citations)
DE2844212A1
Cited
US4178473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |