公开(公告)号：US20150362075A1

公开(公告)日：2015-12-17

申请号：US14763638

申请日：2014-02-20

申请人： KAYABA INDUSTRY CO., LTD.

发明人： Naoki KUBOTA ,  Kiyoshi KANI ,  Chikashi IMOTO

IPC分类号： F16J15/32 ,  B62K21/02

CPC分类号： F16J15/3216 ,  B62K21/02 ,  F16F9/36 ,  F16F9/362 ,  F16J15/32 ,  F16J15/3252

摘要： A seal member includes an annular fitting part and an annular dust lip. The fitting part fits on an inner circumference of a tubular member. The dust lip extends from the fitting part toward a side opposite from the tubular member such that a diameter of an inner circumference of the dust lip gradually decreases, and a distal end portion of the dust lip slides on an outer circumferential surface of a shaft member. A metal insert includes a reinforcing ring and a reinforcing extension piece. The reinforcing ring stands along the inner circumference of the tubular member. The reinforcing extension piece extends from the reinforcing ring toward a side opposite from the tubular member, and inclines such that a distal end of the reinforcing extension piece approaches the shaft member. The reinforcing ring is arranged in the fitting part, whereas the reinforcing extension piece is arranged in the dust lip.

摘要翻译： 密封构件包括环形配合部和环形防尘唇。 配合部分配合在管状部件的内圆周上。 防尘唇缘从配合部向与管状部件相反的一侧延伸，使得防尘唇的内周的直径逐渐减小，并且防尘唇的前端部在轴构件的外周面滑动 。 金属插入件包括加强环和加强延伸件。 加强环沿着管状构件的内圆周站立。 加强延伸件从加强环朝向与管状构件相反的一侧延伸，并且使得加强延伸件的远端接近轴构件。 加强环布置在配合部分中，而加强延伸件布置在防尘唇中。

公开(公告)号：US20150298750A1

公开(公告)日：2015-10-22

申请号：US14376139

申请日：2013-03-28

申请人： KAYABA INDUSTRY Co., LTD.

发明人： Yoshikazu HIROTA ,  Chikashi IMOTO ,  Kazumi ITO ,  Junichiro SUGIMOTO ,  Eishin NOGUCHI ,  Kaori KAWABATA

IPC分类号： B62D55/088 ,  F16J15/34 ,  F16J15/32 ,  F16J15/00

CPC分类号： B62D55/088 ,  F16J15/002 ,  F16J15/008 ,  F16J15/3204 ,  F16J15/344 ,  F16J15/3464

摘要： A seal structure is provided to block a clearance between a rotational casing and a fixed housing for driving a crawler of a crawler vehicle. A seal ring is held in a first annular holding groove provided in the fixed housing together with a first O-ring that biases the seal ring toward the outside of the first holding groove. A second holding groove having an opening facing the first holding groove is provided in the rotational casing to hold a slide ring having a higher rigidity than that of the seal ring together with a second O-ring that biases the slide ring toward the seal ring. A foreign object such as mud is thereby prevented from invading a gear chamber without increasing a frictional loss.

摘要翻译： 提供密封结构以阻挡旋转壳体和用于驱动履带车辆的履带的固定壳体之间的间隙。 密封环与设置在固定壳体中的第一环形保持槽一起保持，第一O形环将密封环朝向第一保持槽的外侧偏压。 具有面向第一保持槽的开口的第二保持槽设置在旋转壳体中，以与将密封环偏压的环的第二O形环一起保持具有比密封环的刚性更高的刚性的滑环。 由此防止诸如泥浆的异物侵入齿轮室而不增加摩擦损失。