JP3113538B2 - Outsert molding boss reinforcement structure - Google Patents
Outsert molding boss reinforcement structureInfo
- Publication number
- JP3113538B2 JP3113538B2 JP07044304A JP4430495A JP3113538B2 JP 3113538 B2 JP3113538 B2 JP 3113538B2 JP 07044304 A JP07044304 A JP 07044304A JP 4430495 A JP4430495 A JP 4430495A JP 3113538 B2 JP3113538 B2 JP 3113538B2
- Authority
- JP
- Japan
- Prior art keywords
- boss
- tall
- reinforcing
- outsert
- metal member
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本案は、ビデオテープレコーダ
（以下、ＶＴＲと云う）等のメカニズムシャーシにアウ
トサート成形されたボスの補強構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boss reinforcement structure formed outsert on a mechanism chassis of a video tape recorder (hereinafter, referred to as VTR) or the like.
【０００２】[0002]
【従来の技術】一般に、ＶＴＲ等のメカニズムシャーシ
は、回転シリンダ等の重量物が搭載されると共に、アウ
トサート成形によりメカニズムシャーシに一体形成され
た背高ボス部にプリント基板を螺着し、樹脂製のシャー
シに組込まれる。ＶＴＲの組立て完成後、輸送中の破損
を避けるために落下テストが行われ、背高ボスの折損が
発生した場合、背高ボスの本数を増やしたり、新たに補
強用の部品を取り付ける対策が採られる。2. Description of the Related Art In general, a mechanism chassis such as a VTR is mounted with a heavy object such as a rotary cylinder, and a printed circuit board is screwed onto a tall boss portion integrally formed on the mechanism chassis by outsert molding. Built into the chassis. After the assembly of the VTR is completed, a drop test is performed to avoid damage during transportation, and if a tall boss breaks, measures to increase the number of tall bosses or install new reinforcing parts are taken. Can be
【０００３】[0003]
【発明が解決しようとする課題】背高ボスを増やす場合
は、アウトサート用の成形金型の改造が避けられず、コ
スト及び日程の遅延の因になる。また、補強部品を追加
する場合は、部品点数の増加による組立て工数の増加を
招くことになる。更には、追加部品のスペース確保と云
った付随的な問題が生じる。When the height of the boss is increased, it is inevitable to remodel the molding die for outsert, which causes cost and schedule delay. In addition, when a reinforcing part is added, an increase in the number of parts causes an increase in the number of assembling steps. Furthermore, there is an additional problem such as securing space for additional components.
【０００４】[0004]
【課題を解決するための手段】そこで本案では、複数個
の背高ボスがアウトサート成形され、回転シリンダ等の
重量物が搭載されるメカニズムシャーシと、背高ボスに
取着される基板と、補強用金属部材とで構成し、該補強
用金属部材を背高ボスの中空孔に挿入固着することによ
りアウトサートボスを補強する。中空孔は、背高ボスの
引け防止用孔を利用する。又、補強金属部材は汎用のビ
スを利用する。Accordingly, in the present invention, a mechanism chassis on which a plurality of tall bosses are outsert molded and a heavy object such as a rotary cylinder is mounted, a substrate attached to the tall bosses, The outsert boss is reinforced by inserting and fixing the reinforcing metal member into the hollow hole of the tall boss. As the hollow hole, a tall boss withdrawal prevention hole is used. In addition, a general-purpose screw is used for the reinforcing metal member.
【０００５】補強用金属部材を背高ボスにインサート成
形することによりアウトサートボスを補強することも出
来る。[0005] The outsert boss can be reinforced by insert-molding a reinforcing metal member to the tall boss.
【０００６】[0006]
【作用】上述の構成により、メカニズムシャーシを組込
んで完成したＶＴＲを落下テストすると、背高ボス部が
補強されていて、該背高ボス部の折損が解消する。According to the above structure, when a drop test is performed on a VTR completed by incorporating a mechanism chassis, the tall boss portion is reinforced, and breakage of the tall boss portion is eliminated.
【０００７】[0007]
【実施例】図１は背高ボス部の部分拡大平面図、及びそ
の断面図、図２はメカニズムシャーシの平面図、図３は
他の例の断面図である。図において、１は金属製のメカ
ニズムシャーシ、２は背高ボス、３は背高ボス２の引け
防止用の中空孔、４はタッピングビス５の螺着用孔、６
はプリント基板である。尚、２ａは背高ボス２の倒れ防
止用リブ、２ｂはランナ兼補強リブである。1 is a partially enlarged plan view of a tall boss portion and a sectional view thereof, FIG. 2 is a plan view of a mechanism chassis, and FIG. 3 is a sectional view of another example. In the figure, 1 is a metal mechanism chassis, 2 is a tall boss, 3 is a hollow hole for preventing the tall boss 2 from pulling, 4 is a screw hole for a tapping screw 5, and 6 is a screw hole.
Is a printed circuit board. 2a is a rib for preventing the tall boss 2 from falling down, and 2b is a runner / reinforcing rib.
【０００８】組立てに際しては、重量物である回転シリ
ンダ７、その他の部品を組込んだメカニズムシャーシ１
の背高ボス２にプリント基板６を載置して、タッピング
ビス５により固着する。更に、該ボス２の中空孔３に該
中空孔３に適合するビス８を背高ボス２の補強用金属部
材として螺着する。尚、補強用金属部材８は、中空孔３
の孔径よりやや大きい目の直径を有する金属製のシャフ
ト８’を圧入してもよい。或るいは、メカニズムシャー
シ１のアウトサート成形時に、金属製のシャフト８’を
インサート成形する（図３参照）と、同程度の強度のも
のが得られる。When assembling, the mechanism chassis 1 incorporating the heavy rotating cylinder 7 and other parts
The printed circuit board 6 is placed on the tall boss 2 and fixed by tapping screws 5. Further, a screw 8 that fits into the hollow hole 3 of the boss 2 is screwed as a reinforcing metal member of the tall boss 2. The reinforcing metal member 8 is provided in the hollow hole 3.
Alternatively, a metal shaft 8 'having a diameter slightly larger than the hole diameter may be press-fitted. Alternatively, at the time of outsert molding of the mechanism chassis 1, if a metal shaft 8 'is insert-molded (see FIG. 3), the same strength can be obtained.
【０００９】上述のように組立てたメカニズムシャーシ
１を組立て完成後、落下試験を行うと、金属製補強部材
８を追加した場合の背高ボス３の強度は単純に、１．５
倍までアップすることが実験的に得られた。実際の実験
における静荷重試験結果は、ビスの有無により、ビス無
しの場合…２０ｋｇに対して、ビス有りの場合…３０ｋ
ｇとなり、背高ボス３の強度が１０ｋｇアップした。
尚、金属製シャフト８’をインサート成形すれば、背高
ボス２に設けている倒れ防止リブ２ａ、ランナ兼補強リ
ブ２ｂ等が不要になり、その分、背高ボス２近傍のスペ
ースが確保される利点がある。After the assembly of the mechanism chassis 1 assembled as described above is completed, a drop test is performed. When the metal reinforcing member 8 is added, the strength of the tall boss 3 is simply 1.5.
Up to a factor of two was obtained experimentally. The result of the static load test in the actual experiment is based on the presence or absence of the screw.
g, and the height of the tall boss 3 is increased by 10 kg.
If the metal shaft 8 'is insert-molded, the fall prevention rib 2a, the runner / reinforcement rib 2b and the like provided on the tall boss 2 become unnecessary, and a space near the tall boss 2 is secured accordingly. There are advantages.
【００１０】[0010]
【発明の効果】本案は、メカニズムシャーシのアウトサ
ートされた背高ボスの折れ防止対策として、該背高ボス
の引け防止用の中空孔に汎用のビスを螺着するのみで、
金型の改造、大がかりな設計変更等をすることなく、背
高ボスの強度アップが図られ、その効果は大である。According to the present invention, as a measure for preventing the tall boss outsert of the mechanism chassis from being broken, only a general-purpose screw is screwed into the hollow hole for preventing the tall boss from retracting.
The height of the tall boss can be increased without remodeling the mold or making major design changes, and the effect is significant.
【図１】背高ボス部の部分拡大平面図、及びその断面図
である。FIG. 1 is a partially enlarged plan view of a tall boss portion and a sectional view thereof.
【図２】メカニズムシャーシの平面図である。FIG. 2 is a plan view of a mechanism chassis.
【図３】他の例の背高ボス部の断面図である。FIG. 3 is a cross-sectional view of another example of a tall boss.
１ メカニズムシャーシ ２ 背高ボス ３ 中空孔（引け防止用孔） ６ 基板 ８ 補強用金属部材（ビス） DESCRIPTION OF SYMBOLS 1 Mechanism chassis 2 Tall boss 3 Hollow hole (hole for preventing shrinkage) 6 Substrate 8 Reinforcement metal member (screw)
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−240097（ＪＰ，Ａ) 特開 平４−41970（ＪＰ，Ａ) 実開 平３−97989（ＪＰ，Ｕ) 実開 平５−75312（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) G11B 15/26 G11B 33/12 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-63-240097 (JP, A) JP-A-4-41970 (JP, A) JP-A-3-97989 (JP, U) JP-A-5-97 75312 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) G11B 15/26 G11B 33/12
Claims (4)
れ、回転シリンダ等の重量物が搭載されるメカニズムシ
ャーシと、前記背高ボスに取着される基板と、補強用金
属部材とより成り、 該補強用金属部材を前記背高ボスの中空孔に挿入固着す
ることを特徴とするアウトサート成形ボスの補強構造。1. A mechanism chassis on which a plurality of tall bosses are outsert molded and a heavy object such as a rotary cylinder is mounted, a substrate attached to the tall bosses, and a reinforcing metal member. A reinforcing structure for an outsert molded boss, wherein the reinforcing metal member is inserted and fixed in a hollow hole of the tall boss.
孔である請求項１のアウトサート成形ボスの補強構造。2. The reinforcing structure for an outsert molded boss according to claim 1, wherein said hollow hole is a hole for preventing the tall boss from pulling.
とを特徴とする請求項１のアウトサート成形ボスの補強
構造。3. The structure according to claim 1, wherein said reinforcing metal member is a general-purpose screw.
ート成形することを特徴とする請求項１のアウトサート
成形ボスの補強構造。4. The reinforcing structure for an outsert molded boss according to claim 1, wherein said reinforcing metal member is insert-molded on a tall boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07044304A JP3113538B2 (en) | 1995-03-03 | 1995-03-03 | Outsert molding boss reinforcement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07044304A JP3113538B2 (en) | 1995-03-03 | 1995-03-03 | Outsert molding boss reinforcement structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08241547A JPH08241547A (en) | 1996-09-17 |
| JP3113538B2 true JP3113538B2 (en) | 2000-12-04 |
Family
ID=12687760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07044304A Expired - Fee Related JP3113538B2 (en) | 1995-03-03 | 1995-03-03 | Outsert molding boss reinforcement structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3113538B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5649989B2 (en) * | 2010-04-23 | 2015-01-07 | 富士フイルム株式会社 | Recording tape cartridge |
-
1995
- 1995-03-03 JP JP07044304A patent/JP3113538B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08241547A (en) | 1996-09-17 |
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