JPS63112665U

JPS63112665U -

Info

Publication number: JPS63112665U
Application number: JP1987005113U
Authority: JP
Priority date: 1987-01-16
Filing date: 1987-01-16
Publication date: 1988-07-20

Description

[Brief explanation of the drawing]

第１図は本考案を適用したタイマの駆動部の分
解斜視図、第２図はその平面図、第３図は第２図
の―線断面図、第４図は第２図の―線断
面図、第５図は本考案を適用した高速回転ギアの
グリースの移動状態を示す平面図、第６図は従来
の高速回転ギアを備えたタイマ駆動部の平面図、
第７図は第６図の―線断面図、第８図は従来
の高速回転ギアのグリース塗布時又は運転初期の
グリースの状態を示す平面図、第９図はその運転
時相当時間経過後のグリースの移動状態を示す平
面図である。Ａ，Ｂ……噛合部、４……ギア、７……歯軸、
１０……周辺障壁、１２……グリース（潤滑剤）
、１３ａ……第１側部障壁、１３ｂ……第２側部
障壁、１４ａ……第１下端面障壁、１４ｂ……第
２下端面障壁、１５ａ……第１上端面障壁、１５
ｂ……第２上端面障壁。 Fig. 1 is an exploded perspective view of the drive unit of a timer to which the present invention is applied, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view taken along the line - - of Fig. 2, and Fig. 4 is a sectional view taken along the line - - of Fig. 2. 5 is a plan view showing the movement state of grease in a high-speed rotating gear to which the present invention is applied, and FIG. 6 is a plan view of a timer drive unit equipped with a conventional high-speed rotating gear.
Fig. 7 is a cross-sectional view taken along the line - - in Fig. 6, Fig. 8 is a plan view showing the state of the grease when applying grease to a conventional high-speed rotating gear or at the beginning of operation, and Fig. 9 is a plan view after a corresponding period of time has elapsed during the operation. FIG. 3 is a plan view showing the state of movement of grease. A, B...Meshing part, 4...Gear, 7...Tooth shaft,
10... Peripheral barrier, 12... Grease (lubricant)
, 13a...first side barrier, 13b...second side barrier, 14a...first bottom wall barrier, 14b...second bottom wall barrier, 15a...first top wall barrier, 15
b...Second upper end surface barrier.

Claims

[Scope of utility model registration request]

In high-speed rotating gears that apply lubricant to the meshing part, there is a peripheral barrier that surrounds the outer periphery of the tooth tip circle, and a side that is provided in the tooth axis direction with a part of the peripheral barrier protruding forward from the meshing part and close to the tooth tip. A noise prevention structure for a high-speed rotating gear, characterized in that a side barrier is provided, and an end face barrier is provided forward of the meshing part, substantially perpendicular to the end face in the tooth axis direction, and one end of which is continuous with the side barrier.