US4796116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact cassette type video tape recorder having single actuating plate
Assignee: LG Electronics Inc
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Filing: 1986-12-19
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Granted: 1989-01-03
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Expires: 2006-12-19
Abstract
Abstract A video cassette recorder having a slim VCR body which includes a loading motor disposed on a deck and a slideable actuating plate disposed on the deck having integrally formed thereon various actuating elements for actuating various tape cassette mechanisms. A mode conversion connecting gear for connecting or disconnecting a gear for driving a tape cassette loading mechanism is engaged with or disengaged from the actuating plate.
Inventors
- 👤 Sung T. Kwon
- 👤 Jung Hyuk Choi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:54
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/44; G11B15/442; G11B15/60; G11B15/66; G11B15/665; G11B15/6653; G11B15/6656
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
271 words
A cassette type video tape recorder which includes tape cassette loading and running mechanisms comprising: a deck; a loading plate mounted on said deck; a head drum disposed on said loading plate; a loading motor disposed on said deck; a mode conversion gear rotatably mounted on said deck having first and second continuous cam grooves formed on opposite surfaces thereof for converting the modes of said recorder; a take-up reel table rotatably mounted in a coaxial and concentric manner on said mode conversion gear; a worm shaft rotatably mounted along the surface of said deck for transmitting the driving force of said loading motor to said mode conversion gear; an actuating plate slidably mounted over the surface of said deck so as to extend below said mode conversion gear and said loading plate, wherein said actuating plate is operatively connected to said first cam groove of said mode conversion gear so that said actuating plate actuates tape loading and running mechanisms of said recorder; a load moving lever having a first end pivotally mounted on said deck and a second end, said load moving lever being operatively connected to said actuating plate for engaging or disengaging said tape cassette loading mechanism; a load connecting gear rotatably mounted on said second end of said load moving lever; a load driving gear for driving said tape cassette loading mechanism, wherein said load driving gear is operatively engaged by and disengaged from said load connecting gear which is moved towards and away from said load driving gear by said load moving lever which is in turn engaged with or disengaged from said actuating plate.
Claim 2
Dependent Claim
271 words
A cassette type video tape recorder which includes tape cassette loading and running mechanisms comprising: a deck; a loading plate mounted on said deck; a head drum disposed on said loading plate; a loading motor disposed on said deck; a mode conversion gear rotatably mounted on said deck having first and second continuous cam grooves formed on opposite surfaces thereof for converting the modes of said recorder; a take-up reel table rotatably mounted in a coaxial and concentric manner on said mode conversion gear; a worm shaft rotatably mounted along the surface of said deck for transmitting the driving force of said loading motor to said mode conversion gear; an actuating plate slidably mounted over the surface of said deck so as to extend below said mode conversion gear and said loading plate, wherein said actuating plate is operatively connected to said first cam groove of said mode conversion gear so that said actuating plate actuates tape loading and running mechanisms of said recorder; a load moving lever having a first end pivotally mounted on said deck and a second end, said load moving lever being operatively connected to said actuating plate for engaging or disengaging said tape cassette loading mechanism; a load connecting gear rotatably mounted on said second end of said load moving lever; a load driving gear for driving said tape cassette loading mechanism, wherein said load driving gear is operatively engaged by and disengaged from said load connecting gear which is moved towards and away from said load driving gear by said load moving lever which is in turn engaged with or disengaged from said actuating plate.
Claim 3
Dependent Claim
132 words
A cassette type video tape recorder as set forth in claim 1, further comprising: a supply reel table rotatably mounted on said deck; and a capstan member rotatably mounted on said deck, said capstan member being rotatably in a clockwise or counterclockwise direction; a clutch device including, a clutch intermediate gear rotatably mounted on said deck between said supply and take-up reel tables, said clutch intermediate gear being driven by said load driving gear; a clutch upper gear coaxially mounted on said intermediate gear; and a clutch connecting gear operatively connected to said capstan member and said upper gear so as to be movable about said clutch upper gear, said clutch connecting gear being engageable with either said supply or take-up reel tables according to the rotation direction of said capstan member.
Claim 4
Dependent Claim
175 words
A cassette type video tape recorder as set forth in claim 2, further comprising: a sector gear rotatably mounted on said deck and operatively engaged with said actuating plate so as to rotate upon the slidable movement of said actuating plate; first and second loading gears rotatably mounted on said deck and engaged with one another so as to rotate in opposite directions, said first loading gear being rotatably engaged with said sector gear; first and second loading levers each having a first end mounted on each of said first and second loading gears so as to rotate with said loading gears; first and second loading trailors mounted on each of the second ends of said loading levers, said loading trailors being slidably mounted in first and second loading guide grooves for slidably moving in said loading guide grovves upon movement of said loading levers, wherein slidable movement of said actuating plate causes rotatable movement of said sector gear which in turn causes slidable movement of said loading trailors for loading and unloading said recorder.
Claim 5
Dependent Claim
176 words
A cassette type video tape recorder as set forth in claim 3, further comprising: a main brake lever slidably mounted on said deck, and biased by a brake coil spring in a brake position, said main brake lever having disposed thereon a main brake extended element and a main brake step portion operatively engageable with said actuating plate; a lock gear rotatably mounted on said main brake extended element and operatively engageable with said clutch device, wherein slidable movement of said actuating plate causes said main brake lever to slidably move from said brake position to a disengaged position so that said lock gear engages with said clutch device so as to drive said supply or take-up reel tables; first and second main brake arms operatively connected to said main brake lever and pivotably engageable with said supply and take-up reel tables, wherein slidable movement of said actuating plate causing said main brake lever to slidably move into said disengaged position releases said main brake arms from pivotal engagement with said supply and take-up reel tables.
Claim 6
Dependent Claim
121 words
A cassette type video tape recorder as set forth in claim 4, further comprising: a main brake lever ratchet mounted on one end of said main brake lever; a worm shaft ratchet wheel rotatably mounted on one end of sasid worm shaft and operatively engageable with said main brake lever ratchet, wherein upon slidable movement of said actuating plate causing said main brake lever to slidably move into said disengaged position, said worm shaft ratchet wheel rotatably engages and pushes said main brake ratchet so as to release said main brake lever from said actuating plate, said main brake lever returning said brake position so that said first and second main brake arms pivotally engage said supply and take-up reel tables.
Claim 7
Dependent Claim
143 words
A cassette type video tape recorder as set forth in claim 1, further comprising: a supply reel table rotatably mounted on said deck; and a capstan member rotatably mounted on said deck, said capstan member being rotatable in a clockwise or counterclockwise direction; a clutch device including, a clutch drive pulley rotatably mounted on said deck between said supply and take-up reel tables, said clutch drive pulley being driven by said load driving gear; a clutch upper disk coaxially mounted on said clutch drive pulley having an outer rubber edge; and a clutch connecting disk having an outer rubber edge operatively connected to said capstan member and said upper disk so as to be movable about said clutch upper disk, said clutch connecting disk being engageable with either said supply or take-up reel tables according to the rotatoon direction of said capstan member.
Claim 8
Dependent Claim
175 words
A cassette type video tape recorder as set forth in claim 6, further comprising: a sector gear rotatably mounted on said deck and operatively engaged with said actuating plate so as to rotate upon the slidable movement of said actuating plate; first and second loading gears rotatably mounted on said deck and engaged with one another so as to rotate in opposite directions, said first loading gear being rotatably engaged with said sector gear; first and second loading levers each having a first end mounted on each of said first and second loading gears so as to rotate with said loading gears; first and second loading trailors mounted on each of the second ends of said loading levers, said loading trailors being slidably mounted in first and second loading guide grooves for slidably moving in said loading guide grooves upon movement of said loading levers, wherein slidable movement of said actuating plate causes rotatable movement of said sector gear which in turn causes slidable movement of said loading trailors for loading and unloading said recorder.
Claim 9
Dependent Claim
176 words
A cassette type video tape recorder as set forth in claim 7, further comprising: a main brake lever slidably mounted on said deck, and biased by a brake coil spring in a brake position, said main brake lever having disposed thereon a main brake extended element and a main brake step portion operatively engageable with said actuating plate; a lock gear rotatably mounted on said main brake extended element and operatively engageable with said clutch device, wherein slidable movement of said actuating plate causes said main brake lever to slidably move from said brake position to a disengaged position so that said lock gear engages with said clutch device so as to drive said supply or take-up reel tables; first and second main brake arms operatively connected to said main brake lever and pivotably engageable with said supply and take-up reel tables, wherein slidable movement of said actuating plate causing said main brake lever to slidably move into said disengaged position releases said main brake arms form pivotal engagement with said supply and take-up reel tables.
Claim 10
Dependent Claim
122 words
A cassette type video tape recorder as set forth in claim 8, further comprising: a main brake lever ratchet mounted on one end of said main brake lever; a worm shaft ratchet wheel rotatably mounted on one end of said worm shaft and operatively engageable with said main brake lever ratchet, wherein upon slidable movement of said actuating plate causing said main brake lever to slidably move into said disengaged position, said worm shaft ratchet wheel rotatably engages and pushes said main brake ratchet so as to release said main brake lever from said actuating plate, said main brake loever returning to said brake position so that said first and second main brake arms pivotally engage said supply and take-up reel tables.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-03 | 1992-07-04 | 1993-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-03 | 1996-07-04 | 1997-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-03 | 2000-07-04 | 2001-01-03 | $7700.00 | Window Closed / Lapsed |