US3851988A

US3851988A - Self-propelling soil-compactor

Info

Publication number: US3851988A
Application number: US00452643A
Authority: US
Inventors: K Kitai; M Tomita
Original assignee: Komatsu Ltd
Current assignee: Komatsu Ltd
Priority date: 1973-03-19
Filing date: 1974-03-19
Publication date: 1974-12-03
Anticipated expiration: 1991-12-03
Also published as: DE2413130B2; JPS49135008U; DE2413130C3; DE2413130A1

Abstract

A self-propelling soil-compactor which comprises wheel drums, an axle housing and a wheel drum cleaning device consisting of cleaner bars attached to both the right and left sides of the axle housing, means for supporting the axle housing rotatably about the longitudinal axis thereof, means for supporting the cleaner bars rotatably about the axis of the axle housing, and teeth provided on the cleaner bars so that they may be placed near the peripheral surface of the wheel drum.

Description

ni'ted States Patet 1191 Kitai et al. Dec. 3, 1974 [5 SELF-PROPELLING SOIL-COMPACTOR 3.554,101 1/1971 Grunt ct al 404/129 z 2 [75] Inventors: Kenzaburo Kitai, Yokohama; 3"633'47l R mdour 9 Miiuho Tomita, Kawasaki, both of Japan Primary Examiner-Mervin Stem Assistant Examiner-Steven A. Hawkins [73] Asslgnee: Kifbushlkl Kalsha Komatsu Attorney, Agent, or Firm-Armstrong, Nikaido & Setsakusho, Tokyo, Japan Wegner [22] Filed: Mar. 19, 1974 [21] App]. No.: 452,643 [57] ABSTRACT A self-propelling soil-compactor which comprises Foreign Application Priority Data wheel drums, an axle housing and a wheel drum clean- Mar. 19, 1973 Japan 48-32627 g device nsisting f lean r ars atta h d to both I the right and left sides of the axle housing, means for [52] U.S. Cl. 404/129, 172/547 pp ng h l h ing r ly t he l ngi- [51] int. Cl. E0lc 19/26 tudinal axis thereof/means for pp g h cleaner [58] Field at Search 404/129, 121; 172/547 bars rotatably about the axis of the axle u g, and teeth provided on the cleaner bars so that they may be [56] References Cit d placed near the peripheral surface of the wheel drum. UNITED STATES PATENTS 4 Claims, 4 Drawing Figures 3,085,484 4/l963 McAdams et a! 404/129 SELF-PROPELLING SOlL-COMPACTOR BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a self-propelling soilcompactor, more particularly to a wheel drum cleaning device for use in a selfpropelling soil-compactor.

2. Description of the Prior Art A wheel drum cleaning device for use in a conventional selfpropelling soil-compactor has cleaner bars separately attached to both the right and left sides of an axle housing of the compactor through bearings. As a result, the bearings are projected externally from the axle housing and, therefore, dust and dirt tend to enter these projected bearings, thereby frequently hindering smooth operation of the cleaner bars. In addition, the cleaner bars cannot smoothly follow up the substantially vertical rocking motion of wheel drums, consequently both the wheel drums and the cleaner bars tend to come into contact with each other, thereby deteriorating'the travelling performance of the vehicle and the durability of each part.

SUMMARY OF THE INVENTION .This invention is intended to eliminate the abovedescribed various disadvantages of the conventional compactor.

It is, therefore, an object of this invention to provide a self-propelling soil-compactor which is so constructed that wheel drums and cleaner bars may be brought into the simultaneous rocking motion in the substantially vertical direction thereof withoutgiving a complicate construction to the periphery of an axle housing thereof.

It is anotherobject of this invention toprovide a selfpropelling soil-compactor which has a novel wheel drum cleaning device consisting of cleaner bars attached to both the right and'left sides of an axle housing thereof, means for supporting the axle housing rotatably about the longitudinal axis of the axle housing and means for supporting the cleaner bars rotatably about the axis of the axle housing and connecting the cleaner.

and a wheel drum cleaning device which consists ofcleaner bar's attached to both the right and left sides of the axle housing, means for supporting the axle housing rotatably about the longitudinal axis of the axle housing and means for supporting the cleaner bars rotatably about the axis of the axle housing. The axle housing supporting means consists of supports fixed to a main frame of the vehicle body of the compactor and annular members fixed to the supports, respectively, and mounted on cylindrical extension parts of the axle housing, respectively, through annular bushings and sealing members so that the axle housing may be rotatable about the longitudinal axis thereof relative to the axle housing supporting means. The cleaner bars supporting means consists of an annular mounting member securely fixed to one of theannular members of the axle housing supporting means, which is positioned at one of the cylindrical extension parts of the axle housing, a firstannular member rotatably mounted on the annular mounting member through an annular bushing and annular sealing members, a second annular member rotatably mounted on the other cylindrical extension part of the axle housing through an annular bushing, and first and second supports fixed to said first and second annular members, respectively, and connecting the cleaner bars.

In addition, the above-described cleaner bars are provided with soil-removing teeth opposite to and adjacent to the peripheral surface of the wheel drum.

BRIEF DESCRIPTION OF THE DRAWINGS These and other objects, features and advantages of this invention will be apparent from the following description taken in conjunction with accompanying drawings in which:

FIG. 1 is a schematic side view of a self-propelling soilcompactor equipping a wheel drum cleaning device DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Now this invention will be hereinafter described with reference to the accompanying drawings. In the drawings, the numeral 1 indicates an axle housing. The front and rear sides at the middle of the axle housing 1 are provided with cylindrical extension parts 3 and 4, respectively. A support 8 having an annular member 8a is provided at the front extension part 3 through an annular bushing 6 and annular sealing members 7. At the rear extension part 4, there is provided a support 11 having an annular member 11a through an annular bushing 9 and annular sealing members 10. These two supports 8 and 11 are securely fixed to a main frame 12 of the vehicle body of the compactor. Thus, the axle housing 1 is supported rotatably about the longitudinal axis thereof. Cleaner bars 13 are attached to the axle housing 1 at its right and left sides. Support 14 and 15 are fixed to the front and rear sides of these cleaner bars. The front support 14 having an annular member 14a is mounted rotatably about the longitudinal axis of the axle housing 1 on a cylindrical mounting portion 2 of an annular mounting member 16 fixed to the annular member 8a through an annular bushing 17 and annular sealing members 18. The annular mounting member 16 is fixed to the side face of the annular member 8a by suitable means such as bolts. The bushing 17 and the sealing members 18 are supported by a plate 20 fixed to the annular mounting member 16 by suitable means 13 is provided with a plurality of soil-removing teeth 23 each of which is inserted in between each foot of the wheel drum 24 so that it may be positioned in the vicinity of the peripheral surface of the wheel drum 24.

In operation, when a soil-Compactor travels and the wheel drums 24 are rotated, soil and dust deposited on between each foot 25 of the wheel drums 24 can be removed by the teeth 23. At this time, the wheel drums 24 are substantially vertically rocked about the longitudinal axis of the axle housing 1. However, the space between the peripheral surface of the wheel drum 24 and the teeth 23 is at all times kept constant because the cleaner bars 13 are also rocked about the axis of the axle housing 1 in the same manner as the wheel drum What is claimed is:

l. A self-propelling soil-compaetor comprising wheel drums, an axle housing having cylindrical extension parts at its longitudinal front and rear sidesand a wheel drum cleaning device which consists of cleaner bars attached to both the right and left sides of said axle housing, means for supporting said axle housing rotatably about the longitudinal axis of said axle housing. and means for supporting said cleaner bars rotatably about the axis of said axle housing.

2. The soil-Compactor as set forth in claim 1, wherein said axle housing supporting means comprises supports fixed to a main frame of the vehicle body thereof and annular members fixed to said supports, respectively, and mounted on said cylindrical extension parts, respectively, through annular bushings and sealing members provided therebetween.

3. The soil-compactor as set forth in claim 1, wherein said cleaner bars supporting means comprises an annular mounting member securely fixed to one of said annular members of said axle housing supporting means mounted on one of said cylindrical extension parts of said axle housing, a' first annular member rotatably mounted on said annular mounting member through an annular bushing and annular sealing members provided therebetween, a second annular member rotatably mounted on the other cylindrical extension part of said axle housing through an annular bushing, and first and second supports fixed to said first and second annular members, respectively, and connecting to said cleaner bars.

4. The soil-Compactor as set forth in claim 1, further comprising a plurality of teeth provided on said cleaner bars, each inserted in between each of feet provided on the peripheral surface of said wheel drum so that said teeth may be positioned in the vicinity of said peripheral surface.

Claims

1. A self-propelling soil-compactor comprising wheel drums, an axle housing having cylindrical extension parts at its longitudinal front and rear sides and a wheel drum cleaning device which consists of cleaner bars attached to both the right and left sides of said axle housing, means for supporting said axle housing rotatably about the longitudinal axis of said axle housing, and means for supporting said cleaner bars rotatably about the axis of said axle housing.

3. The soil-compactor as set forth in claim 1, wherein said cleaner bars supporting means comprises an annular mounting member securely fixed to one of said annular members of said axle housing supporting means mounted on one of said cylindrical extension parts of said axle housing, a first annular member rotatably mounted on said annular mounting member through an annular bushing and annular sealing members provided therebetween, a second annular member rotatably mounted on the other cylindrical extension part of said axle housing through an annular bushing, and first and second supports fixed to said first and second annular members, respectively, and connecting to said cleaner bars.