JPH0659653U - Fixed structure of transmission gear - Google Patents
Fixed structure of transmission gearInfo
- Publication number
- JPH0659653U JPH0659653U JP1022793U JP1022793U JPH0659653U JP H0659653 U JPH0659653 U JP H0659653U JP 1022793 U JP1022793 U JP 1022793U JP 1022793 U JP1022793 U JP 1022793U JP H0659653 U JPH0659653 U JP H0659653U
- Authority
- JP
- Japan
- Prior art keywords
- transmission gear
- nut
- washer
- screw portion
- fixing
- 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
- Gears, Cams (AREA)
- General Details Of Gearings (AREA)
Abstract
(57)【要約】
【目的】伝動ギヤを締付固定するナットの緩みを確実に
防止することができる伝動ギヤの固定構造を提供するこ
と。
【構成】回転軸３にスプライン嵌合した伝動ギヤ４をワ
ッシャ７を介してナット８で締付固定し、ナット８の薄
肉部８ａを変形させてネジ部６の係合溝９に係合させる
一方、ワッシャ７の内周面に突起１３を設け、この突起
１３をネジ部６の係合溝９に嵌合させた。
(57) [Abstract] [Purpose] To provide a structure for fixing a transmission gear that can securely prevent loosening of a nut for tightening and fixing the transmission gear. [Structure] A transmission gear 4 spline-fitted to a rotary shaft 3 is tightened and fixed by a nut 8 via a washer 7, and a thin portion 8a of the nut 8 is deformed to be engaged with an engagement groove 9 of a screw portion 6. On the other hand, a protrusion 13 was provided on the inner peripheral surface of the washer 7, and the protrusion 13 was fitted into the engagement groove 9 of the screw portion 6.
Description
【０００１】[0001]
この考案は、自動車の変速機等における伝動ギヤの固定構造に関するものであ る。 The present invention relates to a structure for fixing a transmission gear in an automobile transmission or the like.
【０００２】[0002]
従来、変速機の回転軸の軸端に支持される伝動ギヤの固定は図３に示すごとく 、変速機ケース１にベアリング２により支持された回転軸３に伝動ギヤ４をスプ ライン５により回転不能に嵌合支持し、回転軸３の軸端のネジ部６にワッシャ７ とナット８を取付けて伝動ギヤ４をベアリング２のインナーレース２ａに締付固 定する一方、ナット８の薄肉部８ａを内側に変形させてネジ部６に設けた係合溝 ９に係合させることによりナット８の緩み止めを行っている。 このようなナッ トの緩み止め構造は、実開昭５６−６６６５１９号公報等により公知である。 そして、伝動ギヤ４の大径ギヤ部４ａには他の伝動ギヤ１０が噛合っており、 小径ギヤ部４ｂには回転軸３と同軸上にある入力軸１１に動力を伝達するための スリーブ１２が嵌合されている。 Conventionally, as shown in FIG. 3, the transmission gear supported on the shaft end of the rotation shaft of the transmission is fixed to the rotation shaft 3 supported by the bearing 2 in the transmission case 1 so that the transmission gear 4 cannot be rotated by the spline 5. The washer 7 and the nut 8 are attached to the threaded portion 6 at the shaft end of the rotary shaft 3 to secure the transmission gear 4 to the inner race 2a of the bearing 2 while fixing the thin portion 8a of the nut 8. The nut 8 is prevented from loosening by being deformed inward and engaging with the engaging groove 9 provided in the screw portion 6. Such a nut loosening prevention structure is known from Japanese Utility Model Publication No. 56-666519. The large-diameter gear portion 4a of the transmission gear 4 is meshed with another transmission gear 10, and the small-diameter gear portion 4b has a sleeve 12 for transmitting power to an input shaft 11 coaxial with the rotary shaft 3. Are fitted.
【０００３】[0003]
上記、従来の固定構造においては、ナット８の締付力が低下した場合、伝動ギ ヤ４は回転軸３に対してスプライン嵌合部のガタ分だけ相対回転が可能となる。 この時、伝動ギヤ４にスラスト力が働くと伝動ギヤ４とワッシャ７およびワッ シャ７とナット８の合せ面に摩擦力が発生し、ワッシャ７とナット８は伝動ギヤ ４と共に回転軸３に対して回転しようとし、その回転方向がナット８を緩める方 向に繰返し作用するとナット８の薄肉部８ａとネジ部６に設けた係合溝９との係 合が外れてナット８が緩む恐れがある。 この考案は以上のような伝動ギヤを締付固定するナットの緩みを確実に防止す ることを目的とするものである。 In the above-mentioned conventional fixing structure, when the tightening force of the nut 8 is reduced, the transmission gear 4 can be relatively rotated with respect to the rotation shaft 3 by a play amount of the spline fitting portion. At this time, when a thrust force acts on the transmission gear 4, a frictional force is generated on the mating surfaces of the transmission gear 4, the washer 7, and the washer 7 and the nut 8, and the washer 7 and the nut 8 together with the transmission gear 4 with respect to the rotating shaft 3. If the rotating direction repeatedly acts in the direction of loosening the nut 8, the thin portion 8a of the nut 8 and the engaging groove 9 provided in the screw portion 6 may be disengaged and the nut 8 may loosen. . The purpose of this invention is to reliably prevent the loosening of the nut for tightening and fixing the transmission gear as described above.
【０００４】[0004]
上記の目的を達成するため、この考案は、伝動ギヤを支持する回転軸の軸端に ネジ部を設け、該ネジ部にワッシャとナットを取付けて伝動ギヤを締付固定する と共に、ナットの一部を変形させてネジ部に設けた係合溝に係合させた伝動ギヤ の固定構造において、上記ワッシャの内周面にネジ部の係合溝に嵌入する突起を 設けたものである。 In order to achieve the above-mentioned object, the present invention provides a screw portion at the shaft end of a rotating shaft that supports a transmission gear, and a washer and a nut are attached to the screw portion to tighten and fix the transmission gear, and at the same time, In a structure for fixing a transmission gear in which a portion is deformed to be engaged with an engagement groove provided in a threaded portion, a protrusion that fits into the engagement groove of the threaded portion is provided on an inner peripheral surface of the washer.
【０００５】[0005]
上記の構成によれば、伝動ギヤにスラスト力が働くと伝動ギヤとワッシャおよ びワッシャとナットの合せ面に摩擦力が発生し、ワッシャとナットは伝動ギヤと 共に回転軸に対して回転しようとするが、ワッシャと回転軸とは突起と係合溝と の嵌合により一体となっているため、伝動ギヤとワッシャの合せ面に滑りが発生 するだけでナットを回転させようとする力は働かない。 According to the above configuration, when the thrust force acts on the transmission gear, a frictional force is generated on the mating surfaces of the transmission gear and the washer and the washer and the nut, so that the washer and the nut rotate together with the transmission gear with respect to the rotating shaft. However, since the washer and the rotary shaft are integrated by fitting the protrusion and the engaging groove, the force that tries to rotate the nut will not be generated simply by slipping on the mating surface of the transmission gear and the washer. Does not work
【０００６】[0006]
以下、この考案の実施例を図１および図２に従って説明する。なお、図３の従 来例と同一部品については同一の符号を付する。 回転軸３は変速機ケース１にベアリング２により軸受支持され、そのスプライ ン部５には大径ギヤ部４ａと小径ギヤ部４ｂを有する伝動ギヤ４がスプライン嵌 合されている。回転軸３の軸端にはネジ部６が形成され、このネジ部６には回転 軸３の端面から軸線方向に延びる係合溝９が設けられている。 伝動ギヤ４はネジ部６に螺着されるナット８によりベアリング２のインナーレス ２ａに締付固定されており、ナット８は締付け後にその薄肉部８ａを内側に変形 させて係合溝９に係合させて緩み止めがされている。伝動ギヤ４とナット８間に 介装されるワッシャ７は図２に示すごとく、その内周面に突起１３を有し、この 突起１３を係合溝９内に嵌合することにより回転軸３に対して回転不能とされて いる。 なお、図１において１０は大径ギヤ部４ａに噛合う他の伝動ギヤであり 、１２は小径ギヤ部４ｂにスプライン嵌合されたスリーブである。 An embodiment of the present invention will be described below with reference to FIGS. The same parts as those in the conventional example of FIG. 3 are designated by the same reference numerals. The rotating shaft 3 is bearing-supported by a bearing 2 in a transmission case 1, and a transmission gear 4 having a large-diameter gear portion 4a and a small-diameter gear portion 4b is spline-fitted to a spline portion 5 thereof. A screw portion 6 is formed on the shaft end of the rotating shaft 3, and an engaging groove 9 extending in the axial direction from the end surface of the rotating shaft 3 is provided on the screw portion 6. The transmission gear 4 is fastened and fixed to the innerless portion 2a of the bearing 2 by a nut 8 screwed to the threaded portion 6, and the nut 8 deforms the thin portion 8a inward after the fastening and engages with the engagement groove 9. It is locked together to prevent loosening. As shown in FIG. 2, the washer 7 interposed between the transmission gear 4 and the nut 8 has a protrusion 13 on its inner peripheral surface, and by fitting this protrusion 13 into the engaging groove 9, the rotary shaft 3 It is said to be unable to rotate. In FIG. 1, 10 is another transmission gear that meshes with the large diameter gear portion 4a, and 12 is a sleeve spline-fitted to the small diameter gear portion 4b.
【０００７】[0007]
この考案によれば、ワッシャとナットが伝動ギヤと共に回転軸に対して回転し ようとしても、ワッシャと回転軸とは突起と係合溝との嵌合により一体となって いるため、伝動ギヤとワッシャの合せ面に滑りが発生するだけでナットを回転さ せようとする力は働かないので、ナットの緩みを確実に防止することができる。 According to this invention, even if the washer and the nut try to rotate with respect to the rotating shaft together with the transmission gear, the washer and the rotating shaft are integrated by the fitting of the protrusion and the engaging groove, so that the transmission gear and the Since the force that tries to rotate the nut does not work just because slippage occurs on the mating surface of the washer, it is possible to reliably prevent the nut from loosening.
【図１】この考案にかかる伝動ギヤの固定構造を示す断
面図である。FIG. 1 is a sectional view showing a fixing structure of a transmission gear according to the present invention.
【図２】図１のＩＩ−ＩＩ断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】従来の伝動ギヤの固定構造を示す断面図であ
る。FIG. 3 is a sectional view showing a conventional fixing structure for a transmission gear.
３ 回転軸 ４ 伝動ギヤ ６ ネジ部 ７ ワッシャ ８ ナット ９ 係合溝 １３ 突起 3 Rotating shaft 4 Transmission gear 6 Screw part 7 Washer 8 Nut 9 Engagement groove 13 Protrusion
Claims (1)
部を設け、該ネジ部にワッシャとナットを取付けて伝動
ギヤを締付固定すると共に、ナットの一部を変形させて
ネジ部に設けた係合溝に係合させた伝動ギヤの固定構造
において、上記ワッシャの内周面にネジ部の係合溝に嵌
入する突起を設けたことを特徴とする伝動ギヤの固定構
造。1. A screw portion is provided at a shaft end of a rotary shaft that supports a transmission gear, and a washer and a nut are attached to the screw portion to tighten and fix the transmission gear, and a part of the nut is deformed to make a screw portion. In the structure for fixing the transmission gear engaged with the engagement groove provided in the above, the fixing structure for the transmission gear is characterized in that the washer has an inner peripheral surface provided with a projection to be fitted into the engagement groove of the screw portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1022793U JPH0659653U (en) | 1993-01-28 | 1993-01-28 | Fixed structure of transmission gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1022793U JPH0659653U (en) | 1993-01-28 | 1993-01-28 | Fixed structure of transmission gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0659653U true JPH0659653U (en) | 1994-08-19 |
Family
ID=11744401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1022793U Pending JPH0659653U (en) | 1993-01-28 | 1993-01-28 | Fixed structure of transmission gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659653U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006194314A (en) * | 2005-01-12 | 2006-07-27 | Sanden Corp | Fastening device of compressor |
| KR101400479B1 (en) * | 2012-08-29 | 2014-05-28 | 현대제철 주식회사 | Valve of fixing apparatus for maintenance |
| KR20170061611A (en) * | 2015-11-26 | 2017-06-05 | 도요타 지도샤（주） | Vehicular automatic transmission |
-
1993
- 1993-01-28 JP JP1022793U patent/JPH0659653U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006194314A (en) * | 2005-01-12 | 2006-07-27 | Sanden Corp | Fastening device of compressor |
| KR101400479B1 (en) * | 2012-08-29 | 2014-05-28 | 현대제철 주식회사 | Valve of fixing apparatus for maintenance |
| KR20170061611A (en) * | 2015-11-26 | 2017-06-05 | 도요타 지도샤（주） | Vehicular automatic transmission |
| US10563738B2 (en) | 2015-11-26 | 2020-02-18 | Toyota Jidosha Kabushiki Kaisha | Vehicular automatic transmission |
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