JP3762939B2

JP3762939B2 - Soldering iron with melting amount setting

Info

Publication number: JP3762939B2
Application number: JP2001304208A
Authority: JP
Inventors: 福一佐藤
Original assignee: 福一佐藤
Priority date: 2001-08-25
Filing date: 2001-08-25
Publication date: 2006-04-05
Anticipated expiration: 2021-08-25
Also published as: JP2003062666A

Description

【発明の属する技術分野】
【０００１】
電気回路の半田接続等の断続、定量、溶融量設定半田ごてに関する。
【従来の技術】
【０００２】
糸半田に依る「片手供給半田ごて」が提供されて以来、他方の手作業が自由に出来る便利さを持ち、糸半田（ヤニ入り線状半田）の優れた溶融性能を有しながら、溶融時の重力と表面張力の現象に対する解決がされていなかったため、良質なる半田付けをすることが、困難であった。
即ち、糸半田の溶融点以上の温度の鏝先に、供給中の糸半田の接触した部分だけが溶融していき、適量だけ溶融した時点で供給操作を停止、供給ハンドルを復帰するが、鏝先の熱は糸半田に伝導して行き、溶融温度に達した糸半田の一部が、重力と表面張力により鏝先に引き寄せられ、更に接続端子とリ−ド間に融け出して、糸半田の溶融量が過剰になり易かった。
このような過剰な半田の溶融を防ぐために、適量だけ溶融した時点で鏝先を母材から離せば、充分な加熱が出来ず、ぬれの充分なる半田付けが出来ない不都合があった。其のため供給停止、加熱遮断の感応的に俊敏な操作を必要とした。
又、鏝先に引き寄せられた溶融半田が残り、次の半田付け作業の妨げになった。
【発明が解決しようとする課題】
【０００３】
「片手供給半田ごて」に於いて溶融半田が定量に達した時点で、鏝先から糸半田へ伝導して行く溶融熱を瞬時に遮断して、定量以上の糸半田の溶融を防止する、と共に母材に充分なる溶融加熱を可能にし、ぬれ不良を防止して、良質な半田付けが出来るよう糸半田の溶融量設定供給機構を設ける。
【課題を解決するための手段】
【０００４】
「片手供給半田ごて」に於いて、糸半田の溶融長さ整数目盛に対し、糸半田の一定容積に於ける各太さ（等量太さ）を表示した、太さ別溶融量設定目盛板を設ける。
【０００５】
供給爪と一体に滑子部を設け、糸半田の供給操作時に於ける滑子部の軌道上の任意位置に、設定可能な爪引外しカムを備えた、溶融量設定機構を設ける。
【０００６】
供給歯車と連動可能に係合した退却爪を有する退却ばねを、退却制限具と共に備えた、糸半田先端部の一定限度退却機構を設ける。
【実施例】
【０００７】
設定目盛板１８は、糸半田の溶融長さ整数目盛１９の１，２，４，６，８，１０，（ｍｍ）に対し、糸半田の容積１ｍｍ^３に於ける各太さを

長さ整数ｌ（ｍｍ）で除法した値の平方根を２倍した値で（１．１３，０．８，０．５６，

太さ別溶融量設定目盛板を成す。尚、溶融長さ整数目盛１９の１（ｍｍ）に対応して

但し、等量太さ２０の表示は糸半田の実質の太さで、フラックス分は含まない。
【０００８】
目盛設定部は、設定レバ−１５の先端の軌道上の本体枠９に、貫通の設定溝２６を設け、設定目盛板１８を整合して貼付け固定し、その上に設定溝２６の幅に係合、固着可能な設定楔２５を着脱自在に設け、設定楔軸に透明材の目盛指示板２１と設定ばね２２を摺動自在に設け、設定つまみ２３を楔軸にねじ止めして成る。
尚、設定レバ−１５を歯車軸４と二重シャフト式にすれば貫通溝は必要ない。
【０００９】
糸半田の溶融量設定機構は、供給爪６と一体に凸出部を設け、滑子部１７として、爪引外しカム１６と円滑に摺動するよう係合する。
爪引外しカム１６は、供給操作時に於ける、滑子部１７の円周軌道の任意位置に設定出来るよう、設定レバ−１５と一体にする。
設定レバ−１５は、歯車軸４に回動自在に支持し、その先端部は設定つまみ２３のレバ−連結穴２４に連結可能にする。
【００１０】
一定限度退却機構の、退却爪１１は、渦巻き板ばねの外周端を折曲げ加工し、供給歯車３の周面に連動可能に係合したものである。
退却ばね１２は、渦巻き板ばねを少数回巻きにして、渦巻き板間の間隙を設け、偏芯復元力と回転復元力を利用して、退却爪１１を供給歯車３の回転円周軌道上（円弧軌道）に追従限度まで従動するもので、従動長さ（約３ｍｍ）は退却爪１１の長さと退却制限具１４の位置で決めることが出来る。
【００１１】
従って、糸半田の供給操作時に、供給歯車３と共に滑子部１７が回動して、設定位置の爪引外しカム１６に達して、供給爪６を引外し、糸半田供給停止の瞬間に、退却ばね１２の復元力によって、供給歯車３と、糸半田先端部１と共に、退却爪１１が、退却制限具１４まで退却する。
即ち、半田溶融量が設定値に達すると、瞬時に糸半田先端部１が鏝先部２から引き離され、間隔（約２ｍｍ）を保ち、溶融熱を遮断する。
【発明の効果】
【００１２】
糸半田の溶融量設定の最大範囲として、糸半田の

糸半田の供給停止、加熱遮断の感応的俊敏なる操作を要せず、目的設定量以上の半田溶融を防止する。母材に充分な溶融加熱を可能にして、ぬれ不良を防止する
【図面の簡単な説明】
【図１】内部構造側面図（Ｂ−Ｂ断面）
【図２】構造部背面図（Ａ−Ａ断面）
【図３】目盛設定構造図（Ｃ−Ｃ断面）
【図４】設定目盛部拡大図
【図５】溶融量設定半田ごて外観図
【符号の説明】
１：糸半田先端部
２：鏝先部
３：供給歯車
４：歯車軸
５：供給レバ−
６：供給爪
７：爪押えばね
８：供給ハンドル
９：本体枠
１０：フレ−ム
１１：退却爪
１２：退却ばね
１３：退却ばね支持具
１４：退却制限具
１５：設定レバ−
１６：爪引外しカム
１７：滑子部
１８：設定目盛板
１９：溶融長さ整数目盛
２０：等量太さ
２１：目盛指示板
２２：設定ばね
２３：設定つまみ
２４：レバ−連結穴
２５：設定楔
２６：設定溝
２７：遮蔽リボンBACKGROUND OF THE INVENTION
[0001]
It is related to the soldering iron of the electric circuit, etc.
[Prior art]
[0002]
Since the "one-hand supply soldering iron" that relies on thread solder has been provided, it has the convenience of being able to freely perform the other manual operation, and has excellent melting performance of thread solder (linear solder containing spear) while melting Since there was no solution to the phenomenon of gravity and surface tension at the time, it was difficult to perform soldering of high quality.
That is, at the tip of the solder wire at a melting point or higher, only the portion of the thread solder that is being supplied is melted, and when an appropriate amount is melted, the supply operation is stopped and the supply handle is returned. The previous heat is conducted to the thread solder, and a part of the thread solder that has reached the melting temperature is attracted to the tip by gravity and surface tension, and further melted between the connection terminal and the lead, and the thread solder. It was easy for the melting amount of to become excessive.
In order to prevent such excessive melting of the solder, if the tip is separated from the base material when the appropriate amount is melted, there is a disadvantage that sufficient heating cannot be performed and soldering with sufficient wettability cannot be performed. For this reason, a sensitive and agile operation was required to stop supply and shut off the heating.
In addition, the molten solder attracted to the tip remains, which hinders the next soldering operation.
[Problems to be solved by the invention]
[0003]
When the amount of molten solder reaches a fixed amount in the “one-hand supply soldering iron”, the melting heat conducted from the tip to the thread solder is cut off instantaneously, preventing the melting of the thread solder beyond the fixed amount. At the same time, a melt amount setting and supplying mechanism for the thread solder is provided so that the base material can be sufficiently melted and heated to prevent wet defects and to perform high-quality soldering.
[Means for Solving the Problems]
[0004]
In "One-hand supply soldering iron", melt thickness setting scale by thickness indicating each thickness (equal thickness) in a fixed volume of thread solder with respect to the integral scale of melt length of thread solder Provide a plate.
[0005]
A slider is provided integrally with the supply claw, and a melting amount setting mechanism is provided at a desired position on the track of the slider at the time of the supply operation of the thread solder, with a claw tripping cam that can be set.
[0006]
A fixed limit retraction mechanism is provided at the tip end of the solder wire, which is provided with a retraction spring having a retraction claw engaged with the supply gear so as to be interlocked with the retraction limiter.
【Example】
[0007]
The setting scale plate 18 has each thickness at a thread solder volume of 1 mm ³ with respect to 1, 2, 4, 6, 8, 10, (mm) of the melt scale integer scale 19 of the thread solder.

A value obtained by doubling the square root of the value divided by the length integer l (mm) (1.13, 0.8, 0.56,

This is a scale plate for setting the melt amount by thickness. In addition, corresponding to 1 (mm) of the melt length integer scale 19

However, the equivalent thickness of 20 is the actual thickness of the thread solder and does not include the flux.
[0008]
The scale setting section is provided with a through setting groove 26 in the body frame 9 on the track of the tip of the setting lever 15, aligns and fixes the setting scale plate 18, and relates to the width of the setting groove 26 thereon. In this case, a setting wedge 25 that can be fixed is detachably provided, a transparent scale indicator plate 21 and a setting spring 22 are slidably provided on the setting wedge shaft, and a setting knob 23 is screwed to the wedge shaft.
If the setting lever 15 is a double shaft type with the gear shaft 4, no through groove is required.
[0009]
The thread solder melting amount setting mechanism is provided with a protruding portion integrally with the supply claw 6 and engages with the claw tripping cam 16 as a slider portion 17 so as to slide smoothly.
The claw tripping cam 16 is integrated with the setting lever 15 so that it can be set at an arbitrary position on the circumferential track of the slider portion 17 during the supply operation.
The setting lever 15 is rotatably supported on the gear shaft 4, and the tip end portion thereof can be connected to the lever connecting hole 24 of the setting knob 23.
[0010]
The retraction claw 11 of the fixed limit retraction mechanism is formed by bending the outer peripheral end of the spiral leaf spring and interlocking with the peripheral surface of the supply gear 3.
The retraction spring 12 is a small number of turns of the spiral plate spring, provides a gap between the spiral plates, and uses the eccentric restoring force and the rotational restoring force to move the retracting claw 11 on the rotational circumferential orbit of the supply gear 3 ( The following length (about 3 mm) can be determined by the length of the retraction claw 11 and the position of the retraction limiter 14.
[0011]
Accordingly, at the time of supplying the thread solder, the slider 17 rotates together with the supply gear 3, reaches the claw tripping cam 16 at the set position, pulls off the supply claw 6, and at the moment of stopping the supply of the thread solder, With the restoring force of the retreat spring 12, the retraction claw 11 retreats to the retreat limiter 14 together with the supply gear 3 and the thread solder tip 1.
That is, when the solder melting amount reaches the set value, the thread solder tip 1 is instantaneously separated from the heel part 2 to maintain an interval (about 2 mm) and cut off the heat of fusion.
【The invention's effect】
[0012]
As the maximum range for setting the amount of thread solder melt,

Prevents solder melting beyond the target set amount without requiring sensitive and agile operations such as stopping the supply of thread solder and shutting off heat. Enables sufficient melting and heating of the base material to prevent wetting defects [Brief description of the drawings]
Fig. 1 Side view of internal structure (BB cross section)
[Fig. 2] Rear view of the structure (AA cross section)
[Fig. 3] Scale setting structure (C-C cross section)
[Fig. 4] Enlarged view of the setting scale [Fig. 5] External view of the melting amount setting soldering iron [Explanation of symbols]
1: Thread solder tip 2: Needle tip 3: Supply gear 4: Gear shaft 5: Supply lever
6: Supply claw 7: Claw presser spring 8: Supply handle 9: Body frame 10: Frame 11: Retraction claw 12: Retraction spring 13: Retraction spring support 14: Retraction limiter 15: Setting lever
16: Claw tripping cam 17: Slider portion 18: Setting scale plate 19: Melting length integer scale 20: Equivalent thickness 21: Scale indicating plate 22: Setting spring 23: Setting knob 24: Lever connecting hole 25: Setting wedge 26: Setting groove 27: Shielding ribbon

Claims

In a one-hand supply soldering iron having a supply gear and a supply claw, a slider unit is provided integrally with the thickness-specific melting amount setting scale plate and the supply claw. A melting amount setting solder comprising a melting amount setting mechanism in which a claw tripping cam that can be set at an arbitrary position on the track is integrated with a setting lever, and a fixed limit retreating mechanism at the tip of the thread solder Gote.

The melt amount setting solder according to claim 1, wherein each thickness in a fixed volume of the thread solder is displayed with respect to an integral scale of the melt length of the thread solder, and a melt amount setting scale plate for each thickness is provided. Gote.

The melting amount setting soldering iron according to claim 1, further comprising a retraction spring having a retraction claw engaged with the supply gear so as to be interlocked with the retraction limiter, and a fixed limit retraction mechanism at the tip of the thread solder is provided. .