JPS6387350U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案にかかる歯打ち防止機構を適用
するトランスフアのスケルトン図、第２図及び第
３図は本考案にかかる歯打ち防止機構の一実施例
を示す要部の断面図であり、第２図は２輪駆動状
態を示し、また第３図は４輪駆動状態を示してい
る。又、第４図は第３ギヤスプラインの要部の斜
視図、第５図は第３ギヤスプラインと２・４輪切
換スリーブとの関係を示す説明図である。 １２……フロントドリブンギヤ、１４……２・
４輪切換スリーブ、１４ａ……スプライン突起、
１５ａ……スプライン突起、１５ｂ……スプライ
ン溝、３０……アクチユエータ、４０……チヤン
フア、５０……チヤンフア、６０……傾斜状面。 FIG. 1 is a skeleton diagram of a transfer to which the tooth striking prevention mechanism according to the present invention is applied, and FIGS. 2 and 3 are sectional views of essential parts showing one embodiment of the tooth striking prevention mechanism according to the present invention. , FIG. 2 shows a two-wheel drive state, and FIG. 3 shows a four-wheel drive state. Further, FIG. 4 is a perspective view of the main part of the third gear spline, and FIG. 5 is an explanatory diagram showing the relationship between the third gear spline and the 2/4 wheel switching sleeve. 12...Front driven gear, 14...2.
4-wheel switching sleeve, 14a...spline protrusion,
15a... Spline protrusion, 15b... Spline groove, 30... Actuator, 40... Channel fer, 50... Channel fer, 60... Inclined surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アクチユエータ３０により動作する２・４輪切
換スリーブ１４と、４輪駆動時に前記２・４輪切
換スリーブ１４がスプライン結合して該２・４輪
切換スリーブ１４から駆動力が伝達されるドリブ
ンギヤ１２とを備えたトランスフアにおいて、前
記２・４輪切換スリーブ１４及び前記ドリブンギ
ヤ１２における各スプライン突起１４ａ，１５ａ
の結合方向先端面にそれぞれチヤンフア４０及び
５０を形成すると共に、前記ドリブンギヤ１２の
スプライン溝１５ｂにおける結合方向終端部に、
前記２・４輪切換スリーブ１４におけるスプライ
ン突起１４ａのチヤンフア４０が圧接する傾斜状
面６０を設け、４輪駆動時、前記２・４輪切換ス
リーブ１４側のチヤンフア４０を前記傾斜状面６
０に圧接させたことを特徴とするトランスフアの
歯打ち防止機構。 A 2/4 wheel switching sleeve 14 operated by an actuator 30, and a driven gear 12 to which the 2/4 wheel switching sleeve 14 is spline-coupled to transmit driving force from the 2/4 wheel switching sleeve 14 during 4-wheel drive. In the transfer gear equipped with the above, each spline protrusion 14a, 15a on the two-wheel/four-wheel switching sleeve 14 and the driven gear 12
chamfers 40 and 50 are respectively formed on the front end faces of the driven gear 12 in the coupling direction, and at the end of the spline groove 15b of the driven gear 12 in the coupling direction,
An inclined surface 60 is provided to which the channel 40 of the spline protrusion 14a of the 2/4 wheel switching sleeve 14 comes into pressure contact, and during 4 wheel drive, the channel 40 on the 2/4 wheel switching sleeve 14 side is pressed against the slanted surface 6.
A mechanism for preventing tooth striking of a transfer gear, which is characterized in that it is pressed against zero.