JP2000065181A - Helicoid screw member - Google Patents
Helicoid screw memberInfo
- Publication number
- JP2000065181A JP2000065181A JP23596798A JP23596798A JP2000065181A JP 2000065181 A JP2000065181 A JP 2000065181A JP 23596798 A JP23596798 A JP 23596798A JP 23596798 A JP23596798 A JP 23596798A JP 2000065181 A JP2000065181 A JP 2000065181A
- Authority
- JP
- Japan
- Prior art keywords
- thread
- screw
- helicoid
- amount
- helicoid screw
- 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.)
- Pending
Links
Landscapes
- Lens Barrels (AREA)
- Transmission Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、互いに螺合しあ
う一対の多条ヘリコイドねじを備えたヘリコイドねじ部
材に関し、特にカメラのレンズ鏡筒の焦点調節あるいは
ズーム作動機構に最適なヘリコイドねじ部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helicoid screw member having a pair of multi-threaded helicoid screws which are screwed together, and more particularly to a helicoid screw member most suitable for adjusting the focus of a lens barrel of a camera or a zoom operating mechanism. .
【０００２】[0002]
【従来の技術】従来、カメラのレンズ鏡筒の焦点調節あ
るいはズーム作動機構においては台形のヘリコイドねじ
が使用されている。しかしながら、そのねじ山の高さは
ピッチに比例して高くなるため、ピッチの粗い１条ねじ
ではねじ部材の肉厚が著しく大きくなる。したがって、
操作性で許容される作動回転角に対し繰出し量が大きい
ヘリコイドねじ部材には、通常多条ねじが使用されてい
る。2. Description of the Related Art Conventionally, a trapezoidal helicoid screw is used in a focus adjustment or zoom operation mechanism of a lens barrel of a camera. However, since the height of the screw thread increases in proportion to the pitch, the wall thickness of the screw member is significantly increased in the case of a single thread having a coarse pitch. Therefore,
A multi-threaded screw is usually used for a helicoid screw member having a large extension amount with respect to an operating rotation angle allowed by operability.
【０００３】図６（ａ）は、一般の１条ねじ１００の雄
ねじ１０１と雌ねじ１０２との組付断面図であり、１回
転で移動するリードＬは、１条ねじ１００のピッチＰに
等しい。これに対し、図６（ｂ）は、上記と同じリード
Ｌの２条ねじ２００の雄ねじ２０１と雌ねじ２０２との
組付断面図であり、そのピッチ及び引っかかり高さは１
条ねじ１００のピッチＰ及び引っかかり高さｈのそれぞ
れ１／２となっている。FIG. 6A is a cross-sectional view of a general single-threaded screw 100 in which a male screw 101 and a female screw 102 are assembled. A lead L that moves in one rotation is equal to the pitch P of the single-threaded screw 100. On the other hand, FIG. 6B is an assembled cross-sectional view of the male screw 201 and the female screw 202 of the double thread 200 of the same lead L as described above.
Each of the pitch P and the hook height h of the thread screw 100 is １ ／.
【０００４】一方、近来の電動モータで駆動し焦点調節
あるいはズーム作動を行うレンズ鏡筒にあっては、その
駆動トルクを可及的に小さくするねじ山形状が望まれて
いる。例えば特開昭６１−９８３０９号公報に示される
ものでは、ヘリコイドねじの一方を台形ねじ、他方をこ
の台形ねじに線接触する断面ほぼ半円形の丸ねじにする
ことにより摩擦抵抗を軽減する方法が提案されており、
実開昭６２−１８４５１１号公報に示されるものでは、
ねじ山先端部のねじ面を湾曲状またはねじ山面下端の傾
斜面よりも小さい角度の傾斜面にする方法が提案されて
いる。On the other hand, for a lens barrel which is driven by a recent electric motor and performs focus adjustment or zoom operation, a thread shape for minimizing the driving torque is desired. For example, Japanese Patent Application Laid-Open No. 61-98309 discloses a method for reducing frictional resistance by making one of the helicoid screws a trapezoidal screw and the other a round screw having a substantially semicircular cross section in line contact with the trapezoidal screw. Has been proposed,
In what is disclosed in Japanese Utility Model Application Laid-Open No. 62-184511,
A method has been proposed in which the thread surface at the tip of the thread is curved or inclined at an angle smaller than the slope at the lower end of the thread.
【０００５】また、レンズ鏡筒の駆動トルクが常に一定
になるよう、樹脂成形で形成する一方のヘリコイドねじ
を他方のヘリコイドねじと螺合し、且つヘリコイドねじ
の有効ねじ部の回転軸方向への長さと所定繰り出し長さ
との和以上の全長とし、他方のヘリコイドねじはその基
部を、相手方のヘリコイドねじと接触しないよう隙間を
保つ無効ねじ部とすることにより、基部の強度を補強す
る方法も提案されている（実開昭６１−７９３１０号公
報参照）。Further, one helicoid screw formed by resin molding is screwed with the other helicoid screw so that the driving torque of the lens barrel is always constant, and the effective screw portion of the helicoid screw is rotated in the direction of the rotation axis. A method is also proposed to reinforce the strength of the base by setting the total length to be equal to or greater than the sum of the length and the specified extension length, and making the base of the other helicoid screw an invalid screw part that keeps a gap so that it does not contact the counterpart helicoid screw. (See Japanese Utility Model Laid-Open No. 61-79310).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな従来のヘリコイドねじ部材にあって、樹脂成形で形
成するヘリコイドねじ部材は、その機能精度を機械加工
により形成したヘリコイドねじ部材と同等に仕上げるに
は、単価の高い高品質な材料を使用する必要があり、金
型製作時には、設計値と実際の成形品の測定値を照合
し、所望の精度範囲になるまで何度か試作金型を修正せ
ねばならず、時間と手間がかかるなど非効率的で総ロッ
ト数が小さい製品には不適であった。However, in such a conventional helicoid screw member, the helicoid screw member formed by resin molding has the same functional accuracy as that of the helicoid screw member formed by machining. Requires the use of high-quality materials with high unit prices.When manufacturing dies, the design values are compared with the measured values of actual molded products, and the prototype dies are corrected several times until the desired accuracy range is achieved. This is inefficient and requires time and effort, and is not suitable for products with a small total number of lots.
【０００７】一方、機械加工で特殊ねじ山を形成するも
のでは、形状に合わせた総型バイトのような特殊工具に
よる加工が必要であり、形成可能なねじ山形状に制限が
あり、また、工具の耐久性の点から高価な特殊工具の予
備を複数用意しなければならず、樹脂成形で形成する場
合に較べコスト高となり総ロット数が大きい製品には不
適であった。On the other hand, when a special thread is formed by machining, machining with a special tool such as a full-size cutting tool is required, which limits the shape of the thread that can be formed. In view of the durability, it is necessary to prepare a plurality of expensive special tool spares, so that the cost is higher than in the case of forming by resin molding, which is not suitable for a product having a large total number of lots.
【０００８】また、機械加工によるねじの特殊ねじ山形
状の形成は、加工工程で複数のバイトを交換するため複
数回の段取り代えをしなければならない場合が多く、１
回の段取りで加工するねじ山形成に比べ精度が低下し、
工数が多くコスト高になる点にも問題があった。[0008] Also, in forming a special thread shape of a screw by machining, it is often necessary to change a plurality of times in order to exchange a plurality of cutting tools in a machining process.
Accuracy is lower than thread forming which is processed by multiple setups,
There was also a problem in that the number of steps was large and the cost was high.
【０００９】この発明は上記の点に鑑みてなされたもの
であり、通常の工具による機械加工で、駆動トルクが小
さく精度の高いねじの特殊山形を、少ない段取り工数で
形成することができるヘリコイドねじ部材を提供するこ
とを目的とする。The present invention has been made in view of the above points, and a helicoid screw capable of forming a high-precision special screw thread having a small driving torque with a small setup man-hour by machining with an ordinary tool. An object is to provide a member.
【００１０】[0010]
【課題を解決するための手段】この発明は上記の目的を
達成するため、互いに螺合して相対回転することによ
り、一方が他方を回転軸方向へ繰り出す多条ヘリコイド
ねじを、金属材料の機械加工により形成したヘリコイド
ねじ部材であって、上記多条ヘリコイドねじの一方のね
じ溝の少なくとも１条を、所定量より深く切り込むこと
により無効ねじとし、他方を通常の多条ヘリコイドねじ
としたヘリコイドねじ部材を提供するものである。SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a multi-strand helicoid screw in which one is screwed together and rotated relative to the other to feed the other in the direction of the rotation axis. A helicoid screw member formed by machining, wherein at least one of the thread grooves of the multi-strand helicoid screw is cut deeper than a predetermined amount to be a null screw, and the other is a normal multi-strand helicoid screw. A member is provided.
【００１１】そして、上記ヘリコイドねじ部材におい
て、一方の上記多条ヘリコイドねじの少なくとも１条の
上記無効ねじ以外のねじ山を、通常のねじ山より低くす
るとよい。[0011] In the helicoid screw member, at least one thread of the one multi-strand helicoid screw other than the invalid thread may be lower than a normal thread.
【００１２】また、上記ヘリコイドねじ部材において、
一方の上記多条ヘリコイドねじの少なくとも１条の上記
無効ねじ以外のねじ山を通常のねじ山より低くしたり、
そのねじ山の角を面取りしたりすることが好ましい。Further, in the above-mentioned helicoid screw member,
At least one thread other than the invalid thread of one of the multi-row helicoid screws is lower than a normal thread,
Preferably, the corners of the thread are chamfered.
【００１３】さらに、上記のヘリコイドねじ部材におい
て、一方の上記多条ヘリコイドねじの少なくとも１条の
上記無効ねじ以外のねじ山を、通常のねじ山より低くし
てその角を面取りすることも可能である。Further, in the above-mentioned helicoid screw member, at least one of the one multi-strand helicoid screw other than the ineffective screw may be lower in height than a normal screw to chamfer the corner. is there.
【００１４】[0014]
【発明の実施の形態】以下、この発明の実施形態を図面
に基づいて具体的に説明する。図１は、この発明の第１
実施形態を示す組付断面図、図２は、この発明の第２実
施形態を示す組付断面図、図３は、この発明の第３実施
形態を示す組付断面図、図４は、この発明の第４実施形
態を示す組付断面図、図５は、この発明の第５実施形態
を示す組付断面図である。Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention.
FIG. 2 is an assembled sectional view showing a second embodiment of the present invention, FIG. 3 is an assembled sectional view showing a third embodiment of the present invention, and FIG. FIG. 5 is an assembly sectional view showing a fourth embodiment of the present invention, and FIG. 5 is an assembly sectional view showing a fifth embodiment of the present invention.
【００１５】図１において、金属材料の機械加工により
形成した３条のヘリコイドねじを有するヘリコイドねじ
部材１０は、その１条目の溝１１ａの切り込み量を、標
準切り込み量ｈ＋追い込み量Δｘとし、２，３条目の溝
１１ｂ，１１ｃは標準切り込み量ｈとした雄ねじ１１
と、ねじ山１２ａ，１２ｂ，１２ｃの高さがすべて標準
の高さの雌ねじ１２とを螺合させたものである。In FIG. 1, a helicoid screw member 10 having three helicoid screws formed by machining a metal material has a first groove 11a having a cut amount of a standard cut amount h + drive amount Δx, The third groove 11b, 11c is a male thread 11 with a standard cutting depth h.
And the female threads 12 having the standard heights of the screw threads 12a, 12b, and 12c.
【００１６】このような構成によれば、雌ねじ１２の１
条目のねじ山１２ａは雄ねじ１１の１条目の溝１１ａに
摺接しない無効ねじとなり、螺合摩擦抵抗は２／３に減
少する。同時に、無効ねじにより生ずる空隙部がグリス
溜まりとなり、作動の円滑度や耐摩耗性も向上する。According to such a configuration, one of the internal threads 12
The thread 12a of the thread becomes an ineffective thread that does not slide on the groove 11a of the first thread of the male screw 11, and the screw frictional resistance is reduced to 2/3. At the same time, the void formed by the invalid screw becomes a grease pool, and the smoothness of operation and wear resistance are improved.
【００１７】図２は、２条のヘリコイドねじを有するヘ
リコイドねじ部材２０の１条目の溝２１ａは標準切り込
み量ｈとし、２条目の溝２１ｂの切り込み量を、標準切
り込み量ｈ＋追い込み量Δｘとした雄ねじ２１と、ねじ
山２２ａ，２２ｂの高さがすべて標準の高さの雌ねじ２
２とを螺合させたものである。FIG. 2 shows that the first groove 21a of the helicoid screw member 20 having the two helicoid screws has a standard cutting amount h, and the cutting amount of the second groove 21b has a standard cutting amount h + advancing amount Δx. The male screw 21 and the female screw 2 of which the heights of the screw threads 22a and 22b are all standard heights
2 is screwed.
【００１８】このような構成によれば、雌ねじ２２の２
条目のねじ山２２ｂは雄ねじ２１の２条目の溝２１ｂに
摺接しない無効ねじとなり、螺合摩擦抵抗は１／２に減
少する。同時に、無効ねじにより生ずる空隙部がグリス
溜まりとなり、作動の円滑度や耐摩耗性も向上する。According to such a configuration, the female screw 22-2
The thread 22b of the thread becomes an invalid thread which does not slide on the groove 21b of the second thread of the male screw 21, and the screw frictional resistance is reduced to half. At the same time, the void formed by the invalid screw becomes a grease pool, and the smoothness of operation and wear resistance are improved.
【００１９】図３は、３条のヘリコイドねじを有するヘ
リコイドねじ部材３０の１条目の溝３１ａの切り込み量
を、標準切り込み量ｈ＋追い込み量Δｘとし、２，３条
目の溝３１ｂ，３１ｃを標準切り込み量ｈとするととも
に、その３条目のねじ山３１ｃ’が雌ねじ３２の３条目
の溝３２ｃ’に完全に摺接する完全ねじ山の高さを、ト
ッピング量Δｈ１だけ低く加工し、１，２条目のねじ山
３１ａ’，３１ｂ’を標準高さｈ１とした雄ねじ３１
と、ねじ山３２ａ，３２ｂ，３２ｃの高さがすべて標準
の雌ねじ３２とを螺合せたものである。FIG. 3 shows that the first groove 31a of the helicoid screw member 30 having three helicoid screws has a standard cut amount h + a drive-in amount Δx, and the second and third grooves 31b and 31c have standard cuts. The height of the complete thread in which the third thread 31c 'of the third thread 32c' of the female screw 32 is completely slid into contact with the third thread 32c 'of the female screw 32 is reduced by the topping amount Δh1. Male thread 31 with thread heights 31a 'and 31b' of standard height h1
And screw threads 32a, 32b, and 32c are all screwed together with standard internal threads 32.
【００２０】このような構成によれば、螺合摩擦抵抗は
トッピング量Δｈ１／引っかかり高さｈ１だけ減少す
る。同時に、トッピングにより生ずる空隙部がグリス溜
まりとなり、作動の円滑度や耐摩耗性も向上する。According to such a configuration, the screw frictional resistance is reduced by the topping amount Δh1 / the catching height h1. At the same time, the gap generated by the topping becomes a grease pool, and the smoothness of operation and wear resistance are improved.
【００２１】図４は、３条のヘリコイドねじを有するヘ
リコイドねじ部材４０の１条目の溝４１ａの切り込み量
を、標準切り込み量ｈ＋追い込み量Δｘとし、２，３条
目の溝４１ｂ，４１ｃを標準切り込み量ｈとするととも
に、その３条目のねじ山４１ｃ’が雌ねじ４２の３条目
の溝４２ｃ’に完全に摺接する完全ねじ山とし、その先
端の角を面取り高さΔｃで面取りし、１，２条目のねじ
山４１ａ’，４１ｂ’を標準高さｈ１とした雄ねじ４１
と、ねじ山４２ａ，４２ｂ，４２ｃの高さがすべて標準
の雌ねじ４２とを螺合せたものである。FIG. 4 shows that the first groove 41a of the helicoid screw member 40 having three helicoid screws has a standard depth h + the drive-in amount Δx, and the second and third grooves 41b and 41c have the standard depth. H, and the third thread 41c 'is a complete thread that slides completely into the third groove 42c' of the female screw 42, and the corner of the tip is chamfered at a chamfer height Δc. Male thread 41 with the standard thread height h1 of the thread 41a ', 41b' of the thread
And screw threads 42a, 42b, 42c are all screwed together with standard internal threads 42.
【００２２】このような構成によれば、螺合摩擦抵抗は
面取り高さΔｃ／引っかかり高さｈ１だけ減少する。同
時に、無効ねじ及び面取りにより生ずる空隙部がグリス
溜まりとなり、作動の円滑度や耐摩耗性も向上する。According to such a configuration, the screw frictional resistance is reduced by the chamfer height Δc / the catch height h1. At the same time, voids generated by the invalid screw and the chamfer become grease pools, and the smoothness of operation and wear resistance are improved.
【００２３】図５は、３条のヘリコイドねじを有するヘ
リコイドねじ部材５０の１条目の溝５１ａの切り込み量
を標準切り込み量ｈ＋追い込み量Δｘとし、２，３条目
の溝５１ｂ、５１ｃを標準切り込み量ｈとするととも
に、３条目のねじ山５１ｃ’が雌ねじ５２の３条目の溝
５２ｃ’に完全に摺接する完全ねじ山の高さを、トッピ
ング量Δｈ１だけ低く加工してその先端の角を面取り高
さΔｃで面取りし、１，２条目のねじ山５１ａ’，５１
ｂ’を標準高さｈ１とした雄ねじ５１と、ねじ山５２
ａ，５２ｂ，５２ｃの高さがすべて標準の雌ねじ５２と
を螺合せたものである。FIG. 5 is a graph showing the standard cut amount h + drive-in amount Δx, and the standard cut amount Δx, and the standard cut amount of the first groove 51a of the helicoid screw member 50 having three helicoid screws. h, the height of the complete thread in which the third thread 51c 'is completely in sliding contact with the third groove 52c' of the female screw 52 is reduced by the topping amount Δh1, and the tip corner is chamfered. Chamfered with a thickness Δc, and the first and second threads 51a ′, 51
a male screw 51 having a standard height h1 with b ';
The heights of a, 52b, and 52c are all obtained by screwing a standard female screw 52 together.
【００２４】このような構成によれば、螺合摩擦抵抗は
（トッピング量Δｈ１＋面取り高さΔｃ）／引っかかり
高さｈ１だけ減少する。同時に、無効ねじ、トッピング
及び面取りにより生ずる空隙部がグリス溜まりとなり、
作動の円滑度や耐摩耗性も向上する。According to such a configuration, the screwing frictional resistance is reduced by (topping amount Δh1 + chamfering height Δc) / hatch height h1. At the same time, voids caused by invalid screws, toppings and chamfers become grease pools,
Operational smoothness and wear resistance are also improved.
【００２５】[0025]
【発明の効果】以上述べたように、この発明によるヘリ
コイドねじ部材は、螺合摩擦抵抗の軽減を、従来の樹脂
成形のヘリコイドねじで有効な特殊ねじの山形の形成で
なく、機械加工により形成する多条ヘリコイドねじの少
なくとも１条を無効ねじとすることによって、コスト、
精度及び機構の簡単さなどを何ら特別に変化させること
なく可能となる。As described above, the helicoid screw member according to the present invention reduces the screwing frictional resistance by machining rather than by forming a special screw thread which is effective with a conventional resin-molded helicoid screw. The cost, by making at least one of the multi-row helicoid screws
This is possible without any special change in accuracy and simplicity of the mechanism.
【００２６】また、無効ねじ、面取り、トッピングなど
により生じる空隙部は、潤滑用のグリス溜まりとなり、
その塗布量を管理することにより作動の円滑化や耐摩耗
性を向上させることができる。In addition, voids generated by invalid screws, chamfers, toppings, and the like become grease pools for lubrication,
By controlling the amount of application, smooth operation and abrasion resistance can be improved.
【００２７】さらに、面取り、トッピングなど特殊山形
の形状も数値制御の加工機によって段取り１工程ですべ
て加工可能な形状であるため作業性が良好である。同時
に、機械加工による形成品は樹脂成形品と比べて温度特
性が優れているので余分な品質試験を必要としない。Furthermore, the workability is good because the special mountain shape such as chamfering and topping is a shape that can be all processed in a single setup process by a numerically controlled processing machine. At the same time, the machined product has better temperature characteristics than the resin molded product, and therefore does not require an extra quality test.
【図１】この発明の第１実施形態を示す組付断面図であ
る。FIG. 1 is an assembled sectional view showing a first embodiment of the present invention.
【図２】この発明の第２実施形態を示す組付断面図であ
る。FIG. 2 is an assembled sectional view showing a second embodiment of the present invention.
【図３】この発明の第３実施形態を示す組付断面図であ
る。FIG. 3 is an assembled sectional view showing a third embodiment of the present invention.
【図４】この発明の第４実施形態を示す組付断面図であ
る。FIG. 4 is an assembled sectional view showing a fourth embodiment of the present invention.
【図５】この発明の第５実施形態を示す組付断面図であ
る。FIG. 5 is an assembled sectional view showing a fifth embodiment of the present invention.
【図６】従来のヘリコイドねじ部材の一例を示す組付断
面図である。FIG. 6 is an assembled sectional view showing an example of a conventional helicoid screw member.
１０，２０，３０，４０，５０：ヘリコイドねじ部材 １１，２１，３１，４１，５１：雄ねじ １２，２２，３２，４２，５２：雌ねじ ｈ：標準切り込み量 Δｘ：追い込み量 ｈ１：引っかかり高さ Δｈ１：トッピング量 Δｃ：面取り高さ 10, 20, 30, 40, 50: Helicoid screw member 11, 21, 31, 41, 51: Male screw 12, 22, 32, 42, 52: Female screw h: Standard cut amount Δx: Drive-in amount h1: Hook height Δh1 : Topping amount Δc: Chamfer height
Claims (4)
り、一方が他方を回転軸方向へ繰り出す多条ヘリコイド
ねじを、金属材料の機械加工により形成したヘリコイド
ねじ部材であって、 上記多条ヘリコイドねじの、一方のねじ溝の少なくとも
１条を所定量より深く切り込むことにより無効ねじと
し、他方を通常の多条ヘリコイドねじとしたことを特徴
とするヘリコイドねじ部材。1. A helicoid screw member formed by machining a metal material to form a multi-strand helicoid screw, one of which is screwed to each other and rotated relative to each other to extend the other in the direction of the rotation axis. A helicoid screw member characterized in that at least one of the thread grooves of the screw is cut deeper than a predetermined amount so as to be an ineffective screw and the other is a normal multi-start helicoid screw.
いて、一方の上記多条ヘリコイドねじの少なくとも１条
の上記無効ねじ以外のねじ山を、通常のねじ山より低く
したことを特徴とするヘリコイドねじ部材。2. The helicoid screw according to claim 1, wherein at least one thread of the one multi-strand helicoid screw other than the ineffective screw is lower than a normal thread. Element.
いて、一方の上記多条ヘリコイドねじの少なくとも１条
の上記無効ねじ以外のねじ山の角を、面取りしたことを
特徴とするヘリコイドねじ部材。3. The helicoid screw member according to claim 1, wherein at least one of the multi-strand helicoid screws has a chamfered corner of a thread other than the invalid screw.
いて、一方の上記多条ヘリコイドねじの少なくとも１条
の上記無効ねじ以外のねじ山を、通常のねじ山より低く
してその角を面取りしたことを特徴とするヘリコイドね
じ部材。4. The helicoid screw member according to claim 1, wherein at least one thread of the one multi-thread helicoid screw other than the ineffective thread is lower than a normal thread and the corner thereof is chamfered. A helicoid screw member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23596798A JP2000065181A (en) | 1998-08-21 | 1998-08-21 | Helicoid screw member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23596798A JP2000065181A (en) | 1998-08-21 | 1998-08-21 | Helicoid screw member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000065181A true JP2000065181A (en) | 2000-03-03 |
Family
ID=16993873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23596798A Pending JP2000065181A (en) | 1998-08-21 | 1998-08-21 | Helicoid screw member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000065181A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008128151A (en) * | 2006-11-23 | 2008-06-05 | Otics Corp | Rocker arm |
| JP2015203422A (en) * | 2014-04-10 | 2015-11-16 | 本田技研工業株式会社 | Telescopic actuator |
| JP2019204056A (en) * | 2018-05-25 | 2019-11-28 | Smk株式会社 | Camera module |
-
1998
- 1998-08-21 JP JP23596798A patent/JP2000065181A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008128151A (en) * | 2006-11-23 | 2008-06-05 | Otics Corp | Rocker arm |
| JP2015203422A (en) * | 2014-04-10 | 2015-11-16 | 本田技研工業株式会社 | Telescopic actuator |
| JP2019204056A (en) * | 2018-05-25 | 2019-11-28 | Smk株式会社 | Camera module |
| JP7091834B2 (en) | 2018-05-25 | 2022-06-28 | Smk株式会社 | The camera module |
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