JPH0180573U

JPH0180573U -

Info

Publication number: JPH0180573U
Application number: JP1987175889U
Authority: JP
Priority date: 1987-11-18
Filing date: 1987-11-18
Publication date: 1989-05-30

Description

[Brief explanation of the drawing]

第１図〜第７図は本考案の実施例を示し、第１
図はキングピン部の給油機構を示す縦断面図、第
２図はプラグの平面図、第３図は同じくプラグの
斜視図、第４図はフオークリフトのリヤアクスル
を示す一部切断正面図、第５図、第６図及び第７
図はそれぞれプラグに形成する凸状部の変更例を
示す平面図である。第８図は従来の給油機構を示
す縦断面図、第９図は従来のプラグを示す斜視図
である。１……アクスルビーム、２……ピン受部、３…
…ナツクルアーム、６……キングピン、７……ニ
ードルベアリング、９……給油通路、１０……プ
ラグ、１２……グリスニツプル、１３……凸状部
、１４……連絡通路。 1 to 7 show embodiments of the present invention.
The figure is a longitudinal sectional view showing the oil supply mechanism of the king pin part, Figure 2 is a plan view of the plug, Figure 3 is a perspective view of the plug, Figure 4 is a partially cutaway front view showing the rear axle of a forklift, Figure 5 is a front view showing the rear axle of a forklift. Figures 6 and 7
Each figure is a plan view showing a modified example of the convex portion formed on the plug. FIG. 8 is a longitudinal sectional view showing a conventional oil supply mechanism, and FIG. 9 is a perspective view showing a conventional plug. 1...Axle beam, 2...Pin receiver, 3...
... Nutacle arm, 6 ... King pin, 7 ... Needle bearing, 9 ... Oil supply passage, 10 ... Plug, 12 ... Grease nipple, 13 ... Convex part, 14 ... Communication passage.

Claims

[Scope of utility model registration request]

A lubricating oil supply formed on a kingpin for supporting a knuckle arm rotatably attached to the axle beam via a bearing, with one end opening approximately at the center of the shaft end and the other end opening at the rolling surface of the bearing. In a lubrication mechanism that supplies grease to the bearing through a passage, a plug is fitted into a pin hole for mounting a king pin formed in the axle beam so as to come into contact with the shaft end of the king pin, and a plug is provided on the inner surface of the plug. By providing an appropriate number of convex portions as abutting portions for the kingpin shaft end at positions that are inward from the outer periphery and do not overlap with the oil supply passage, a gap between the kingpin shaft end and the inner surface of the plug is created. A lubricating mechanism for a king pin portion, the lubricating mechanism comprising a communication passage that communicates between an opening on the shaft end side of the lubricating passage and a grease nipple attached to the axle beam.