JPH0567838U - Annular wave spring - Google Patents
Annular wave springInfo
- Publication number
- JPH0567838U JPH0567838U JP10096591U JP10096591U JPH0567838U JP H0567838 U JPH0567838 U JP H0567838U JP 10096591 U JP10096591 U JP 10096591U JP 10096591 U JP10096591 U JP 10096591U JP H0567838 U JPH0567838 U JP H0567838U
- Authority
- JP
- Japan
- Prior art keywords
- main body
- peaks
- valleys
- spring
- height
- 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.)
- Granted
Links
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Springs (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
(57)【要約】
［目的］ 環状の主体部を、高さが有りかつ周方向に長
い大きい山部と、高さが低くかつ周方向の長さが短い小
さい山部および谷部とを有する波形に形成することによ
り、小型にして耐久性に富む環状ウエーブスプリングを
得る。
［構成］ ばね材により環状の主体部を形成するととも
に、該主体部を波形に湾曲させて多数の山部と谷部とを
形成し、前記山部は一部の山部の高さおよび周方向の長
さを残余の山部の高さおよび周方向の長さよりも大きく
形成する。
(57) [Summary] [Purpose] An annular main body has large peaks which are tall and long in the circumferential direction, and small peaks and valleys which are low in height and short in the circumferential direction. By forming the corrugated shape, an annular wave spring having a small size and high durability can be obtained. [Structure] An annular main body is formed of a spring material, and the main body is curved in a corrugated manner to form a large number of peaks and valleys. The length in the direction is formed to be larger than the height of the remaining mountain portion and the length in the circumferential direction.
Description
【０００１】[0001]
本考案は、ばね材からなる環状の主体部に該主体部の軸心線方向に波形に湾曲 させて多数の山部と谷部とを形成してなる環状ウエーブスプリングに関するもの である。 The present invention relates to an annular wave spring formed by forming a large number of peaks and valleys in an annular main body made of a spring material, which is curved in a waveform in the axial direction of the main body.
【０００２】[0002]
従来の技術として図７および図８に示すものがあった。図７において１は環状 ウエーブスプリングであり、帯状の板ばねを螺旋状に湾曲して複数個の環状の主 体部２を形成するとともに、各主体部２を位相を９０度ずらせて上下方向の波形 に湾曲させて多数の山部３と谷部４とを形成する。上記各山部３および各谷部４ は、図８に示すように、その周方向の長さＬおよび高さＨを等しく形成して互い に対向せ、接近方向に対向する各山部３ａと各谷部４ａとを互いに接触させる。 As a conventional technique, there is one shown in FIGS. 7 and 8. In FIG. 7, reference numeral 1 denotes an annular wave spring, which forms a plurality of annular main body portions 2 by spirally bending a strip-shaped leaf spring, and shifts the main body portions 2 by 90 degrees in the vertical direction. A large number of peaks 3 and valleys 4 are formed by curving in a wave shape. As shown in FIG. 8, the crests 3 and the troughs 4 are formed so that the length L and the height H in the circumferential direction are equal to each other and face each other. The valleys 4a are brought into contact with each other.
【０００３】[0003]
上記従来のものは、接近方向に対向する各山部３ａおよび各谷部４ａのすべて が互いに接触していたので、ばね特性が図９の（ア）に示すように直線、つまり ばね定数が一定となる。このものは主体部２の数を少なくしながら環状ウエーブ スプリング１の伸縮量を大きくすると、山部３および谷部４の撓み量が大きくな って損傷する欠点があった。本考案は上記欠点を解消した新規な環状ウエーブス プリングを得ることを目的とする。 In the above-mentioned conventional one, since the peaks 3a and the valleys 4a facing each other in the approaching direction are all in contact with each other, the spring characteristic is a straight line, that is, the spring constant is constant as shown in FIG. Becomes This has a drawback that if the expansion and contraction amount of the annular wave spring 1 is increased while the number of main body portions 2 is reduced, the amount of bending of the crests 3 and the troughs 4 increases and damage occurs. The object of the present invention is to obtain a novel annular wave sprinkling solution that overcomes the above drawbacks.
【０００４】[0004]
本考案は、上記目的を達成するために、ばね材を一定の軸心を中心として湾曲 させて環状の主体部を形成するとともに、前記主体部を該主体部の軸心線方向に 波形に湾曲させて多数の山部と谷部とを形成し、前記山部は一部の山部の高さお よび周方向の長さを残余の山部の高さおよび周方向の長さよりも大きく形成する 構成にしたものである。また、ばね材を一定の軸心を中心として螺旋状に湾曲さ せて複数個の環状の主体部を形成するとともに、各主体部を該主体部の軸心線方 向に波形に湾曲させて互いに対向する多数の山部と谷部とを形成し、互いに接近 方向に対向する山部と谷部のうち、一部の山部と谷部の高さおよび周方向の長さ を残余の山部と谷部の高さおよび周方向の長さよりも大きく形成する構成にした ものである。 In order to achieve the above object, the present invention forms a ring-shaped main body by bending a spring material around a certain axis, and bends the main body in a corrugated shape in the axial direction of the main body. To form a large number of peaks and valleys, and the peaks are formed such that the height and circumferential length of some peaks are greater than the height and circumferential length of the remaining peaks. It is configured to do. In addition, the spring material is curved in a spiral shape around a fixed axis to form a plurality of annular main body portions, and each main body portion is curved in a waveform in the axial direction of the main body portion. A large number of peaks and valleys that face each other are formed, and among the peaks and valleys that face each other in the approaching direction, the height and circumferential length of some peaks and valleys are the remaining peaks. It is configured to be formed to be larger than the height and the circumferential length of the portion and the valley portion.
【０００５】[0005]
本考案は上記構成にしたものであるから、荷重を受けると、まず大きい山部が 撓み、この大きい山部の撓み量が所定値になると、上記大きい山部と残余の小さ い山部とが撓むことになる。この場合、上記大きい山部は残余の小さい山部に対 して周方向に長くなっているので、高さが大きく変化してもその撓み角度は小さ い山部の撓み角度と略等しくなる。 Since the present invention is configured as described above, when a load is applied, the large crest portion first flexes, and when the amount of deflection of the large crest portion reaches a predetermined value, the large crest portion and the small remaining crest portion are separated. It will bend. In this case, since the large crest portion is longer in the circumferential direction than the remaining crest portion, even if the height greatly changes, the bending angle is substantially equal to the bending angle of the small crest portion.
【０００６】[0006]
以下本考案の実施例を図面に基いて説明する。図面において、図１は本考案の 第１実施例を示す側面図、図２はその平面図、図３はそのばね特性図、図４はば ねの変形状態を示す説明図、図５は本考案の第１実施例を自動変速機のクラッチ に使用した状態の断面図、図６は本考案の第２実施例を示す要部拡大側面図であ る。図１および図２において、５は後述する自動変速機のクラッチ１５のクラッ チスプリングをなす環状ウエーブスプリングであり、帯状の板ばねを螺旋状に３ 巻きとし、上下の各一巻きは平坦な座巻き部６，７に形成し、中間部の一巻きつ まり主体部８は上下方向の波形に湾曲させる。 An embodiment of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a side view showing a first embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a spring characteristic view thereof, FIG. 4 is an explanatory view showing a deformed state of a spring, and FIG. FIG. 6 is a sectional view of a first embodiment of the present invention used in a clutch of an automatic transmission, and FIG. 6 is an enlarged side view of essential parts showing a second embodiment of the present invention. In FIGS. 1 and 2, reference numeral 5 denotes an annular wave spring which forms a clutch spring of a clutch 15 of an automatic transmission, which will be described later. A belt-shaped leaf spring is spirally wound in three turns, and each upper and lower turn is a flat seat. The winding main body 8 is formed on the winding portions 6 and 7, and the one winding main body portion 8 in the middle portion is curved in a vertical waveform.
【０００７】 上記主体部８の波形は、小さい山部９および谷部１０を周方向に１２個形成し 、これら各山部９および谷部１０の途中に大きい山部１１を周方向に４個等間隔 で形成する。上記小さい山部９および谷部１０と大きい山部１１とは、図４に示 すように、環状ウエーブスプリング５の最大撓み量Ｓ時において、大きい山部１ １の撓み角度Ａ１と小さい山部９（または谷部１０）の撓み角度Ａ２とが略等し くなる如く、大きい山部１１の周方向の長さＬ１を小さい山部９（または谷部１ ０）の周方向の長さＬ２の約３倍にし、また大きい山部１１の高さＨ１を小さい 山部９（または谷部１０）の高さＨ２の約１.６倍にする。また図３に示すよう に、最大撓み量Ｓ時の荷重Ｔはクラッチ１５が入る荷重、例えば２５０kg/cm2と し、大きい山部１１の高さが小さい山部９（または谷部１０）の高さまで撓む撓 み量Ｓ１時の荷重Ｔ１は上記クラッチ１５が入り始める荷重、例えば１００１kg /cm2とする。なお、図３において、（イ）は大きい山部１１のばね特性線、（ウ ）は小さい山部９（または谷部１０）のばね特性線、（エ）は大きい山部１１と 小さい山部９（または谷部１０）とを合わせた総合ばね特性線である。The main body 8 has a waveform in which twelve small peaks 9 and valleys 10 are formed in the circumferential direction, and four large peaks 11 are circumferentially formed in the middle of each of the peaks 9 and valleys 10. Form at equal intervals. As shown in FIG. 4, the small crest portion 9 and the valley portion 10 and the large crest portion 11 have a bending angle A1 of the large crest portion 11 and a small crest portion at the maximum bending amount S of the annular wave spring 5. The circumferential length L1 of the large ridge portion 11 is set to the circumferential length L2 of the small ridge portion 9 (or the valley portion 10) so that the bending angle A2 of the ridge 9 (or the valley portion 10) becomes substantially equal. And the height H1 of the large crest 11 is about 1.6 times the height H2 of the small crest 9 (or the valley 10). Further, as shown in FIG. 3, the load T at the time of the maximum deflection amount S is set to a load into which the clutch 15 enters, for example, 250 kg / cm 2 , and the large peak portion 11 has a small height 9 (or the valley portion 10). The load T1 when the bending amount S1 of bending to the height is set to a load at which the clutch 15 starts to enter, for example, 1001 kg / cm 2 . In FIG. 3, (a) is the spring characteristic line of the large mountain portion 11, (c) is the spring characteristic line of the small mountain portion 9 (or valley portion 10), and (d) is the large mountain portion 11 and the small mountain portion. 9 (or the valley portion 10) is a total spring characteristic line.
【０００８】 図５において、１５は上記環状ウエーブスプリング５が使用される自動変速機 のクラッチである。このクラッチ１５は、メンシャフトまたはカウンタシャフト 等の回転軸１６に有底円筒状のドラム１７を固定し、該ドラム１７の底部（右部 ）に形成したシリンダ室１７ａに円板状のピストン１８を摺動可能に嵌合させ、 またドラム１７の開口部（左部）に多数のディスク１９およびプレート２０を交 互に重ねて嵌合させる。上記各ディスク１９はドラム１７に相対回転不能にかつ 軸方向移動可能にスプライン係合させ、上記各プレート２０は回転軸１６に回転 自在に取り付けた変速用のギヤ２１に相対回転不能にかつ軸方向移動可能にスプ ライン係合させる。上記ピストン１８はドラム１７の軸心部に設けたリターンス プリング２２により右方に押圧し、該ピストン１８とこれと対面するディスク１ ９との間に本考案による環状ウエーブスプリング５を介在させ、回転軸１６に上 記シリンダ室１７ａと連通する油路１６ａを形成する。In FIG. 5, reference numeral 15 is a clutch of an automatic transmission in which the annular wave spring 5 is used. In this clutch 15, a cylindrical drum 17 having a bottom is fixed to a rotary shaft 16 such as a men shaft or a counter shaft, and a disc-shaped piston 18 is provided in a cylinder chamber 17a formed at the bottom (right side) of the drum 17. It is slidably fitted, and a large number of discs 19 and plates 20 are fitted in the opening (left part) of the drum 17 in an alternating manner. The discs 19 are spline-engaged with the drum 17 so as not to be rotatable relative to each other and axially movable. Movable spline engagement. The piston 18 is pressed to the right by a return spring 22 provided at the axial center of the drum 17, and the annular wave spring 5 according to the present invention is interposed between the piston 18 and the disc 19 facing the piston 18 to rotate. An oil passage 16a communicating with the cylinder chamber 17a is formed on the shaft 16.
【０００９】 そして、油路１６ａに作動油を供給してリターンスプリング２２の反力に抗し てピストン１８を左方に移動させることにより、環状ウエーブスプリング５を介 してディスク１９を左方に押圧し、該ディスク１９によりプレート２０を挾圧、 つまりクラッチ１５をオン作動させて回転軸１６とギヤ２１とを一体的に連結し 、また上記油路１６ａへの作動油の供給を解除してリターンスプリング２２の反 力によりピストン１８を右方に移動させて上記クラッチ１５をオフ作動させ、回 転軸１６とギヤ２１との連結を解除する。Then, by supplying hydraulic oil to the oil passage 16 a and moving the piston 18 to the left against the reaction force of the return spring 22, the disk 19 is moved to the left via the annular wave spring 5. When the disc 20 is pressed, the plate 20 is pressed, that is, the clutch 15 is turned on to integrally connect the rotary shaft 16 and the gear 21, and the supply of hydraulic oil to the oil passage 16a is released. The reaction force of the return spring 22 moves the piston 18 to the right to turn off the clutch 15 to release the connection between the rotating shaft 16 and the gear 21.
【００１０】 図６は本考案の第２実施例を示す。このものは、帯状の板ばねを螺旋状に４巻 きとし、上下の各一巻きは平坦な座巻き部６，７に形成し、中間部の二巻きつま り主体部８ａ，８ｂは次の如く上下方向の波形に湾曲させる。即ち、各主体部８ ａ，８ｂに互いに対向する１２個の小さい山部９ａおよび谷部１０ａを周方向に １２個形成し、これら各山部９ａおよび谷部１０ａの途中に大きい山部および谷 部１１ａを周方向に４個等間隔で形成する。上記小さい山部９ａおよび谷部１０ ａと大きい山部１１ａとは、前述した第１実施例と同様に、環状ウエーブスプリ ング５の最大撓み量（Ｓ）時において、大きい山部１１ａの撓み角度（Ａ１）と 小さい山部９ａ（または谷部１０ａ）の撓み角度（Ａ２）とが略等しくなる如く 、大きい山部１１ａの周方向の長さおよび上下方向の高さを、小さい山部９ａ（ または谷部１０ａ）の周方向の長さおよび上下方向の高さよりも所定量大きくす る。FIG. 6 shows a second embodiment of the present invention. In this product, a strip-shaped leaf spring is wound in four spirals, one upper and one lower winding are formed on flat end turn portions 6 and 7, and two winding main body portions 8a and 8b in the middle are As described above, it is curved in a vertical waveform. That is, twelve small ridges 9a and valleys 10a facing each other are formed in the main body portions 8a and 8b in the circumferential direction, and large ridges and valleys are formed in the middle of the ridges 9a and valleys 10a. Four parts 11a are formed at equal intervals in the circumferential direction. As in the first embodiment described above, the small crests 9a and the valleys 10a and the large crests 11a have the same bending angle of the large crests 11a at the maximum bending amount (S) of the annular wave spring 5. In order that (A1) and the bending angle (A2) of the small mountain portion 9a (or the valley portion 10a) are substantially equal, the circumferential length and the vertical height of the large mountain portion 11a are set to the small mountain portion 9a ( Alternatively, it is made larger than the circumferential length and the vertical height of the valley portion 10a) by a predetermined amount.
【００１１】 本考案によれば、ピストン１８が左方に移動すると、まず大きい山部１１（１ １ａ）のみが撓み、この大きい山部１１（１１ａ）の撓み量がＳ１になると、そ の後は上記大きい山部１１（１１ａ）と残余の小さい山部９（９ａ）および谷部 １０（１０ａ）が同時に撓み、環状ウエーブスプリング５のばね定数は図３の（ エ）に示す如く初期は小さく、後期は高くなる。そして、大きい山部１１（１１ ａ）の撓み量がＳ、小さい山部９（９ａ）および谷部１０（１０ａ）の撓み量が Ｓ２になった時点でクラッチ１５が入り、回転軸１６とギヤ２１とが一体的に連 結される。この場合、上記大きい山部１１（１１ａ）は残余の小さい山部９（９ ａ）および谷部１０（１０ａ）に対して周方向に長くなっているので、環状ウエ ーブスプリング５が最大に撓んだ際における大きい山部１１の撓み角度Ａ１と小 さい山部９（または谷部１０）の撓み角度Ａ２とが略等しくなり、ばね材は全体 が平均化した歪量となる。According to the present invention, when the piston 18 moves to the left, first, only the large crest 11 (11a) bends. Indicates that the large peak 11 (11a) and the small residual peak 9 (9a) and valley 10 (10a) are bent at the same time, and the spring constant of the annular wave spring 5 is initially small as shown in FIG. , The latter half will be higher. Then, when the amount of flexure of the large crest 11 (11a) becomes S and the amount of flexure of the small crest 9 (9a) and the valley 10 (10a) becomes S2, the clutch 15 is engaged, and the rotary shaft 16 and the gear 21 is integrally connected. In this case, the large crest 11 (11a) is longer in the circumferential direction than the crest 9 (9a) and the trough 10 (10a) having a small remaining amount, so that the annular wave spring 5 is bent to the maximum extent. At that time, the bending angle A1 of the large crest portion 11 and the bending angle A2 of the small crest portion 9 (or the valley portion 10) are substantially equal to each other, and the entire spring material has an averaged strain amount.
【００１２】[0012]
以上の説明から明らかな如く、本考案は、環状の主体部を、高さが有りかつ周 方向に長い大きい山部と、高さが低くかつ周方向の長さが短い小さい山部および 谷部とを有する波形に形成するようにしたので、主体部の数を少なくしながら伸 縮量を大きく、かつ最大荷重を大きくすることができるとともに、各山部および 谷部の撓み量が平均化することになる。従って小型にして耐久性のある環状ウエ ーブスプリングを得ることができる効果を奏する。 As is clear from the above description, according to the present invention, the annular main body is composed of a large peak having a height and a long circumferential direction, and a small peak and a valley having a low height and a short circumferential length. Since it is formed to have a corrugated shape, the amount of expansion and contraction can be increased while the maximum load can be increased while reducing the number of main parts, and the amount of bending of each peak and valley can be averaged. It will be. Therefore, it is possible to obtain a compact and durable annular wave spring.
【図１】本考案の第１実施例を示す側面図である。FIG. 1 is a side view showing a first embodiment of the present invention.
【図２】図１の平面図である。FIG. 2 is a plan view of FIG.
【図３】本考案の第１実施例によるばね特性図である。FIG. 3 is a spring characteristic diagram according to the first embodiment of the present invention.
【図４】本考案の第１実施例によるばねの変形状態を示
す説明図である。FIG. 4 is an explanatory view showing a deformed state of the spring according to the first embodiment of the present invention.
【図５】本考案の第１実施例を自動変速機のクラッチに
使用した状態の断面図である。FIG. 5 is a cross-sectional view of a first embodiment of the present invention used in a clutch of an automatic transmission.
【図６】本考案の第２実施例を示す要部拡大側面図であ
る。FIG. 6 is an enlarged side view of essential parts showing a second embodiment of the present invention.
【図７】従来例を示す側面図である。FIG. 7 is a side view showing a conventional example.
【図８】図７の要部拡大側面図である。8 is an enlarged side view of a main part of FIG.
【図９】従来のばね特性図である。FIG. 9 is a conventional spring characteristic diagram.
５ 環状ウエープスプリング ６ 座巻き部 ７ 座巻き部 ８ 主体部 ９ 小さい山部 １０ 小さい谷部 １１ 大きい山部 １５ クラッチ １６ 回転軸 １６ａ 油路 １７ ドラム １７ａ シリンダ室 １８ ピストン １９ ディスク ２０ プレート ２１ 変速用のギヤ ２２ リターンスプリング 5 Annular wake spring 6 End turn part 7 End turn part 8 Main part 9 Small crest part 10 Small trough part 11 Large crest part 15 Clutch 16 Rotary shaft 16a Oil passage 17 Drum 17a Cylinder chamber 18 Piston 19 Disc 20 Plate 21 For shifting Gear 22 return spring
Claims (2)
せて環状の主体部を形成するとともに、前記主体部を該
主体部の軸心線方向に波形に湾曲させて多数の山部と谷
部とを形成し、前記山部は一部の山部の高さおよび周方
向の長さを残余の山部の高さおよび周方向の長さよりも
大きく形成したことを特徴とする環状ウエーブスプリン
グ。1. A spring member is curved around a constant axis to form an annular main body, and the main body is curved in a waveform in the axial direction of the main body to form a large number of peaks. A valley portion is formed, and the peak portion is formed such that the height and circumferential length of a part of the peak portion are larger than the height and circumferential length of the remaining peak portion. spring.
に湾曲させて複数個の環状の主体部を形成するととも
に、各主体部を該主体部の軸心線方向に波形に湾曲させ
て互いに対向する多数の山部と谷部とを形成し、互いに
接近方向に対向する山部と谷部のうち、一部の山部と谷
部の高さおよび周方向の長さを残余の山部と谷部の高さ
および周方向の長さよりも大きく形成したことを特徴と
する環状ウエーブスプリング。2. A spring member is spirally curved about a certain axis to form a plurality of annular main body portions, and each main body portion is curved in a wavy shape in the axial direction of the main body portion. Form a large number of peaks and valleys that face each other, and among the peaks and valleys that face each other in the approaching direction, the height and circumferential length of some peaks and valleys are An annular wave spring, characterized in that it is formed to be larger than the height of the peaks and valleys and the length in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991100965U JP2586112Y2 (en) | 1991-11-12 | 1991-11-12 | Annular wave spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991100965U JP2586112Y2 (en) | 1991-11-12 | 1991-11-12 | Annular wave spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0567838U true JPH0567838U (en) | 1993-09-10 |
| JP2586112Y2 JP2586112Y2 (en) | 1998-12-02 |
Family
ID=14288068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991100965U Expired - Lifetime JP2586112Y2 (en) | 1991-11-12 | 1991-11-12 | Annular wave spring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2586112Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821471A (en) * | 1994-07-04 | 1996-01-23 | Nhk Spring Co Ltd | Wavy spring |
| JP2007255539A (en) * | 2006-03-22 | 2007-10-04 | Twinbird Corp | Spring device |
| JP2012241894A (en) * | 2011-05-19 | 2012-12-10 | Hyundai Motor Co Ltd | Apparatus for reducing shift shock in automatic transmission |
| WO2013137242A1 (en) * | 2012-03-12 | 2013-09-19 | 日本発條株式会社 | Wave spring and load-adjustment method therefor |
| JPWO2014016930A1 (en) * | 2012-07-25 | 2016-07-07 | トヨタ自動車株式会社 | Differential gear device for vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101767168B1 (en) | 2009-06-29 | 2017-08-10 | 일리노이즈 툴 워크스 인코포레이티드 | Two-phase spring |
| JP6711833B2 (en) * | 2015-07-31 | 2020-06-17 | イーグル工業株式会社 | Coiled wave spring and damper system for diaphragm damper device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4422004Y1 (en) * | 1965-02-25 | 1969-09-18 | ||
| JPS5427466U (en) * | 1977-07-28 | 1979-02-22 | ||
| JPS62122738A (en) * | 1985-09-17 | 1987-06-04 | インシチユフオ−ム・グル−プ・リミテツド | Pipe structure and method of lining pipe |
-
1991
- 1991-11-12 JP JP1991100965U patent/JP2586112Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4422004Y1 (en) * | 1965-02-25 | 1969-09-18 | ||
| JPS5427466U (en) * | 1977-07-28 | 1979-02-22 | ||
| JPS62122738A (en) * | 1985-09-17 | 1987-06-04 | インシチユフオ−ム・グル−プ・リミテツド | Pipe structure and method of lining pipe |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821471A (en) * | 1994-07-04 | 1996-01-23 | Nhk Spring Co Ltd | Wavy spring |
| JP2007255539A (en) * | 2006-03-22 | 2007-10-04 | Twinbird Corp | Spring device |
| JP4629601B2 (en) * | 2006-03-22 | 2011-02-09 | ツインバード工業株式会社 | Spring device |
| JP2012241894A (en) * | 2011-05-19 | 2012-12-10 | Hyundai Motor Co Ltd | Apparatus for reducing shift shock in automatic transmission |
| WO2013137242A1 (en) * | 2012-03-12 | 2013-09-19 | 日本発條株式会社 | Wave spring and load-adjustment method therefor |
| JPWO2013137242A1 (en) * | 2012-03-12 | 2015-08-03 | 日本発條株式会社 | Wave spring and its load adjustment method |
| JPWO2014016930A1 (en) * | 2012-07-25 | 2016-07-07 | トヨタ自動車株式会社 | Differential gear device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2586112Y2 (en) | 1998-12-02 |
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