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Method for fixing guide base and inclined pin
JPH04281249A
Japan
- Other languages
Japanese - Inventor
Sunao Tomita 冨田 直 - Current Assignee
- Nippon Chemi Con Corp
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Description
translated from Japanese
【0001】0001
【産業上の利用分野】この発明は、ビデオテープレコー
ダ、ビデオカメラ、DAT等の磁気テープを用いた磁気
記録装置や再生装置等の磁気テープの移送に用いられる
テープガイドにおけるガイドベースと傾斜ピンの固定方
法に関する。[Industrial Application Field] This invention relates to a guide base and an inclined pin in a tape guide used for transporting magnetic tape in a magnetic recording device or a reproducing device using magnetic tape such as a video tape recorder, a video camera, or a DAT. Regarding the fixing method.
【0002】0002
【従来の技術】従来、ビデオテープレコーダ、ビデオカ
メラ、DAT等の磁気記録装置や再生装置において、磁
気テープの移送にはテープガイドが用いられている。こ
のテープガイドは、図3に示すように、装置本体に固定
されるガイドベース2にガイドローラ4とともに、傾斜
ピン6を取り付けたものである。傾斜ピン6には、その
位置や角度が移送すべき磁気テープの安定走行に大きく
影響を与えることから、製作上、厳しい精度、例えば、
位置では30μm、角度では±3′程度の精度が要求さ
れている。2. Description of the Related Art Conventionally, tape guides have been used to transport magnetic tapes in magnetic recording devices and playback devices such as video tape recorders, video cameras, and DATs. As shown in FIG. 3, this tape guide has a guide roller 4 and an inclined pin 6 attached to a guide base 2 fixed to the main body of the apparatus. Since the position and angle of the inclined pin 6 greatly affect the stable running of the magnetic tape to be transferred, strict manufacturing precision is required, for example.
Accuracy of 30 μm in position and ±3' in angle is required.
【0003】0003
【発明が解決しようとする課題】ところで、このガイド
ベース2に対する傾斜ピン6の固定は、ガイドベース2
に所定の固定孔を形成し、その固定孔に傾斜ピン6の固
定部を圧入による固定方法や、エポキシ系の接着剤によ
る固定方法が取られてきた。圧入による固定方法では、
ガイドベース2に高精度に傾斜ピン6を固定しようとす
れば、ガイドベース2に対して高精度な下穴加工が必要
であり、また、接着剤を用いた場合には、経時変化や温
度変化によって固定強度が低下し、また、振動や衝撃力
が加わると接合部分が破損するおそれがある。[Problems to be Solved by the Invention] Incidentally, the fixing of the inclined pin 6 to the guide base 2 is
A fixing method has been used in which a predetermined fixing hole is formed in the fixing hole, and the fixing part of the tilt pin 6 is press-fitted into the fixing hole, or a fixing method using an epoxy adhesive. In the fixation method by press-fitting,
In order to fix the inclined pin 6 to the guide base 2 with high precision, it is necessary to prepare a hole with high precision on the guide base 2, and if adhesive is used, it will not be affected by changes over time or temperature. This reduces the fixing strength, and if vibration or impact force is applied, there is a risk that the joint will be damaged.
【0004】そこで、この発明は、ガイドベースと傾斜
ピンとの固定強度を高め、経時変化等によって固定強度
に変化を生じないガイドベースと傾斜ピンの固定方法の
提供を目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for fixing a guide base and an inclined pin, which increases the fixing strength between the guide base and the inclined pin, and prevents the fixing strength from changing due to changes over time.
【0005】[0005]
【課題を解決するための手段】即ち、この発明のガイド
ベースと傾斜ピンの固定方法は、ガイドベース(2)に
固定すべき傾斜ピン(6)の固定部(10)に金めっき
層(18)を形成するとともに、前記固定部を挿入すべ
き前記ガイドベースの固定孔の内壁面部に金めっき層を
形成し、前記固定孔及び前記固定部を銀ろう(20)で
接合したことを特徴とする。[Means for Solving the Problems] That is, in the method of fixing a guide base and an inclined pin of the present invention, a gold plating layer (18 ), a gold plating layer is formed on the inner wall surface of the fixing hole of the guide base into which the fixing part is to be inserted, and the fixing hole and the fixing part are joined with silver solder (20). do.
【0006】[0006]
【作用】この発明のガイドベースと傾斜ピンの固定方法
によれば、ガイドベースの固定孔の内壁面及び傾斜ピン
の固定部のそれぞれに金めっき層を形成した上、銀ろう
で固定孔に傾斜ピンの固定部を接合するので、ガイドベ
ースと傾斜ピンの位置精度及び固定強度が高められる。
そして、金めっき層及び銀ろうによる金属接合によれば
、経時変化や温度変化によって固定強度に変化を生じる
ことがなく、安定した固定強度が維持される。[Operation] According to the method of fixing the guide base and the inclined pin of the present invention, a gold plating layer is formed on the inner wall surface of the fixing hole of the guide base and the fixing part of the inclined pin, and then silver solder is applied to the inclined fixing hole. Since the fixing portions of the pins are joined together, the positional accuracy and fixing strength of the guide base and the tilting pin can be improved. According to the metal bonding using the gold plating layer and silver solder, the fixing strength does not change due to changes over time or temperature, and stable fixing strength is maintained.
【0007】[0007]
【実施例】図1及び図2は、この発明のガイドベースと
傾斜ピンの固定方法を示す。ガイドベース2には、ガイ
ドローラ4に隣接した傾斜ピン6を固定すべき固定孔8
を形成する。この固定孔8に固定すべき傾斜ピン6には
、固定孔8に対応し、傾斜ピン6の本体部より小径な固
定部10を形成する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show a method of fixing a guide base and an inclined pin according to the present invention. The guide base 2 has a fixing hole 8 in which the inclined pin 6 adjacent to the guide roller 4 is to be fixed.
form. The inclined pin 6 to be fixed in the fixing hole 8 is formed with a fixing part 10 that corresponds to the fixing hole 8 and has a smaller diameter than the main body part of the inclined pin 6.
【0008】固定部10の形成によって傾斜ピン6に形
成された段部12は、傾斜ピン6の案内面14と直角に
設定される。また、ガイドベース2には、固定孔8の開
口面部に傾斜ピン6の段部12に対応して傾斜ピン6を
所定角度に設定すべき傾斜部16が形成されている。即
ち、固定孔8は、予め形成された傾斜部16に穿孔させ
る。[0008] The step portion 12 formed on the inclined pin 6 by forming the fixing portion 10 is set at right angles to the guide surface 14 of the inclined pin 6. Further, the guide base 2 is formed with an inclined portion 16 on the opening surface of the fixing hole 8 in correspondence with the stepped portion 12 of the inclined pin 6 to set the inclined pin 6 at a predetermined angle. That is, the fixing hole 8 is formed in the inclined portion 16 formed in advance.
【0009】そして、ガイドベース2及び傾斜ピン6の
接合部、即ち、ガイドベース2では固定孔8の内壁面及
び傾斜部16、また、傾斜ピン6では固定部10及び段
部12が接合部に設定され、これら接合部に無電解めっ
き等のめっき処理により金めっきを施し、その表面に金
めっき層18を形成する。[0009]The joint portion of the guide base 2 and the inclined pin 6, that is, the inner wall surface of the fixing hole 8 and the inclined portion 16 of the guide base 2, and the fixed portion 10 and the stepped portion 12 of the inclined pin 6 are connected to the joint portion. These joint portions are plated with gold by a plating process such as electroless plating, and a gold plating layer 18 is formed on the surface thereof.
【0010】次に、図2に示すように、ガイドベース2
の固定孔8の内壁面及び傾斜部16の上面に銀ろう20
を一様に付着させた後、矢印Aで示すように、固定孔8
に傾斜ピン6の固定部10を挿入し、ガイドベース2の
下面側を基準面として傾斜ピン6を所定角度に保持させ
てガイドベース2と傾斜ピン6を固定させる。この結果
、図1のテープガイドが得られる。Next, as shown in FIG.
Silver solder 20 is applied to the inner wall surface of the fixing hole 8 and the upper surface of the inclined portion 16.
After uniformly attaching the fixing hole 8, as shown by arrow A,
The fixing part 10 of the inclined pin 6 is inserted into the guide base 2 and the inclined pin 6 are fixed by holding the inclined pin 6 at a predetermined angle using the lower surface side of the guide base 2 as a reference surface. As a result, the tape guide shown in FIG. 1 is obtained.
【0011】したがって、このテープガイドでは、ガイ
ドベース2及び傾斜ピン6の接合部に金めっきを施し、
それを銀ろう20で固定したので、固定強度が高く、振
動や衝撃力に対して十分な強度を持つ固定強度が得られ
る。しかも、ガイドベース2に傾斜ピン6の角度設定が
容易になるとともに、固定手段に金めっき処理及び銀ろ
う20を用いたことから、ガイドベース2の固定孔8の
精度、即ち、下穴加工の精度が低くて済み、加工が容易
である。Therefore, in this tape guide, the joint portion between the guide base 2 and the inclined pin 6 is plated with gold,
Since it is fixed with silver solder 20, the fixing strength is high, and the fixing strength is sufficient to withstand vibration and impact force. Moreover, the angle of the inclined pin 6 on the guide base 2 can be easily set, and since gold plating and silver solder 20 are used as the fixing means, the accuracy of the fixing hole 8 of the guide base 2, that is, the machining of the pilot hole, can be improved. It requires low precision and is easy to process.
【0012】0012
【発明の効果】以上説明したように、この発明によれば
、ガイドベースと傾斜ピンとを振動や衝撃力に耐えるこ
とができる十分な固定強度に固定できるとともに、経時
変化や温度変化によって固定強度に変化を生じることが
なく、しかも、必要な位置及び角度に高精度に固定でき
、さらに、ガイドベースに対する下孔加工の精度を低く
でき、歩留りを高めることができる。[Effects of the Invention] As explained above, according to the present invention, the guide base and the inclined pin can be fixed with sufficient fixing strength to withstand vibrations and impact forces, and the fixing strength can be reduced due to changes over time or temperature changes. No change occurs, and it can be fixed with high precision at the required position and angle. Furthermore, the accuracy of preparing the hole for the guide base can be lowered, and the yield can be increased.
【図1】この発明のガイドベースと傾斜ピンの固定方法
の一実施例を示す一部を切り欠いた側面図である。FIG. 1 is a partially cutaway side view showing an embodiment of a method for fixing a guide base and an inclined pin according to the present invention.
【図2】図1に示した固定方法におけるガイドベースに
対する傾斜ピンの固定を示す一部を切り欠いた側面図で
ある。FIG. 2 is a partially cutaway side view showing how the tilt pin is fixed to the guide base in the fixing method shown in FIG. 1;
【図3】テープガイドを示す斜視図である。FIG. 3 is a perspective view showing a tape guide.
2 ガイドベース 6 傾斜ピン 8 固定孔 10 固定部 18 金めっき層 20 銀ろう 2 Guide base 6 Slanted pin 8 Fixed hole 10 Fixed part 18 Gold plating layer 20 Silver wax
Claims (1)
Hide Dependent
translated from Japanese
固定部に金めっき層を形成するとともに、前記固定部を
固定すべき前記ガイドベースの固定孔の内壁面部に金め
っき層を形成し、前記固定孔及び前記固定部を銀ろうで
接合したことを特徴とするガイドベースと傾斜ピンの固
定方法。1. Forming a gold plating layer on a fixing portion of an inclined pin to be fixed to a guide base, and forming a gold plating layer on an inner wall surface of a fixing hole of the guide base to which the fixing portion is to be fixed, A method for fixing a guide base and an inclined pin, characterized in that the fixing hole and the fixing part are joined with silver solder.