GB2216496A - Video cassette: lever mounting - Google Patents
Video cassette: lever mounting Download PDFInfo
- Publication number
- GB2216496A GB2216496A GB8901276A GB8901276A GB2216496A GB 2216496 A GB2216496 A GB 2216496A GB 8901276 A GB8901276 A GB 8901276A GB 8901276 A GB8901276 A GB 8901276A GB 2216496 A GB2216496 A GB 2216496A
- Authority
- GB
- United Kingdom
- Prior art keywords
- release lever
- support
- pins
- grooves
- video tape
- 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.)
- Withdrawn
Links
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/04—Magazines; Cassettes for webs or filaments
- G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
- G11B23/087—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using two different reels or cores
- G11B23/08707—Details
- G11B23/08721—Brakes for tapes or tape reels
Abstract
In a video cassette, a reel lock release lever has two pivot pins 4 pressed through narrow gaps 3 into respective over- sized holes 5, adjacent slots 7, 7' allowing flexure of material bonding the gaps 3 to permit panage of the pins. <IMAGE>
Description
Title: Release Lever Fixing Device for a Video Tape
Cassette
The present invention relates to a release lever fixing device for a video tape cassette.
The release lever fixing device with which the invention is concerned is a part of a reel locking device which is installed to prevent a tape from being damaged by coming loose as a result of reel revolution when not safely seated on the deck of a video tape recorder in the case of a video tape cassette which records or reproduces image signals by being installed on a video tape recorder.
In particular, the present invention is an improvement made on the support structures of pin support ribs formed in the cassette case to support both pins of a release lever.
In the case of prior art, as shown in Fig. 3, the pin support grooves 5 of ribs 2 which support both pins 4 of release lever 3 are greater than the diameters of pins 4 and are formed in so a simple way that they tend to come off easily if they are disturbed in the process of assembly or in the course of transport or during use. Thus, difficulty is found during assembly and, in an assembled condition, inconvenience is suffered because the tap cannot be prevented from coming loose and it must be assembled again by loosening a screw in order to use it again.
In particular, when a general user assembles it again, it tends to be so damaged as to be unusable.
The invention provides a device which makes the once assembled release lever unseparable through an improvement made on the pin support grooves of the release lever. The diameters of the pin support grooves are made greater than both pins of the release lever but their entrances are made narrow and flexible grooves are provided on both sides thereof so that the support ribs are not impaired when assembled for the first time.
The invention will now be described further by way of example with reference to the accompanying drawings in which:
Fig. 1 is an exploded view, partly in section, of part of a video tape cassette showing the release lever fixing device of the invention,
Fig. 2 is a side view of the cassette shown in Fig. 1, and
Fig. 3 is a side view of a cassette according to the prior art.
When the support grooves 5 which support both pins 4 of the release lever 3 are formed in the support ribs 2 for release lever on the bottom plate 1 of a video cassette, the upper parts of the support grooves 5 are made open by narrow entrances 6 but the diameters of the support grooves 5 are made greater than those of both pins 4 and the spaces of narrow entrances 6 are made smaller than the diameters of pins 4. On the other hand, flexible grooves 7 7', are provided on both sides thereof so that narrow entrances 6 may become wider. Numeral 8 is the upper plate of a video cassette, 9 is a rib formed in the upper plate and comes into direct contact with the said support rib 2 and 10 is a stroke bar set up on the deck.
When the release lever 3 is assembled in the support rib 2 for the present release lever, the space of the narrow entrance 6 open in the upper part of the support groove 5 is made narrower than the pin 4 of the release lever 3 but it can become wider by means of flexible grooves 7 7' formed on both sides thereof So, as shown in Fig. 2, forcible insertion is possible.
Once the pin 4 of the release lever 3 is inserted into the support groove 5 it is made not to come off freely even to the side of the narrow entrance 6. Consequently, the complexity caused by the frequency of separation during assembly work can be relieved and, at the same time, mistakes made in assembly work are reducible.
Meanwhile, even if a shock is given to it in assembled condition, it is free from coming off unless the release lever 3 is forcibly disassembled or the support rib 2 is destroyed. Thus, product reliability will grow all the more.
As the support groove 5 which supports the pin 4 of the release lever 3 is greater than the diameter of pin 4 and it turns around easily, it locks a reel and releases it from locking smoothly with its both ends interlocked with a stroke bar 10 or a reel lock which is not illustrated.
As described hereinabove, the present invention is an effective device which makes assembly work convenient and contributes to the improvement of product reliability because it not only assembles the release lever easily but also prevents it from natural separation after assembly.
Claims (3)
1. A release lever fixing device for a video tape cassette, in which the upper parts of the support grooves 5 are made open by narrow entrances but the diameters of the support grooves 5 are made greater than those of pins 4 and the spaces of narrow entrances 6 are made smaller than the diameters of pins 4 and flexible grooves 7 7' are provided on both sides thereof to enable the narrow entrances 6 to become wider, when support grooves 5 which support both pins 4 of release lever 3 are formed in the support ribs 2 for release lever 3 on the bottom plate of video cassette.
2. A release lever fixing device for a video tape cassette substantially as herein described with reference to and as illustrated in Figs. 1 and 2 of the accompanying drawings.
3. A video tape cassette incorporating a release lever fixing device as claimed in claim 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880003046U KR910005141Y1 (en) | 1988-03-07 | 1988-03-07 | Release lever holder on video tape cassette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8901276D0 GB8901276D0 (en) | 1989-03-15 |
| GB2216496A true GB2216496A (en) | 1989-10-11 |
Family
ID=19272992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8901276A Withdrawn GB2216496A (en) | 1988-03-07 | 1989-01-20 | Video cassette: lever mounting |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH01133372U (en) |
| KR (1) | KR910005141Y1 (en) |
| GB (1) | GB2216496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0568061A2 (en) * | 1992-05-01 | 1993-11-03 | Minnesota Mining And Manufacturing Company | Cassette base with triangular strengthening braces |
| US5433432A (en) * | 1993-08-26 | 1995-07-18 | Hersch And Company | Bed basketball |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088943A (en) * | 1980-10-27 | 1982-06-16 | Champion Spark Plug Europ | Pivot connection for wiper blades |
| GB2186021A (en) * | 1986-01-31 | 1987-08-05 | Trico Folberth Ltd | Pivot joint |
-
1988
- 1988-03-07 KR KR2019880003046U patent/KR910005141Y1/en not_active IP Right Cessation
- 1988-09-22 JP JP1988123538U patent/JPH01133372U/ja active Pending
-
1989
- 1989-01-20 GB GB8901276A patent/GB2216496A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088943A (en) * | 1980-10-27 | 1982-06-16 | Champion Spark Plug Europ | Pivot connection for wiper blades |
| GB2186021A (en) * | 1986-01-31 | 1987-08-05 | Trico Folberth Ltd | Pivot joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0568061A2 (en) * | 1992-05-01 | 1993-11-03 | Minnesota Mining And Manufacturing Company | Cassette base with triangular strengthening braces |
| EP0568061A3 (en) * | 1992-05-01 | 1994-08-17 | Minnesota Mining & Mfg | Cassette base with triangular strengthening braces |
| US5398147A (en) * | 1992-05-01 | 1995-03-14 | Minnesota Mining And Manufacturing Company | Cassette base with triangular strengthening braces |
| US5433432A (en) * | 1993-08-26 | 1995-07-18 | Hersch And Company | Bed basketball |
Also Published As
| Publication number | Publication date |
|---|---|
| KR910005141Y1 (en) | 1991-07-20 |
| JPH01133372U (en) | 1989-09-11 |
| KR890019935U (en) | 1989-10-05 |
| GB8901276D0 (en) | 1989-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |