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US4577995A Expired / Lapsed US ⏱️ 0.0 years remaining

Mechanism for generating vibrations for a ground compacting machine

Assignee: Sakai Heavy Industries Ltd
•
Filing: 1984-04-03
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Granted: 1986-03-25
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Expires: 2004-04-03
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Abstract

Abstract An improved mechanism for generating vibrations in the horizontal plane for a ground compacting machine is disclosed. At least a rotary shaft with an eccentric mass mounted for generating required vibrations is rotatably supported within the rolling wheel. The rotary shaft adapted to be rotated by a hydraulic motor assumes the position where its center line of rotation is located on a linear line radially extending from the center line of rotation of the rolling wheel. Rotation of the hydraulic motor is usually transmitted to the rotary shaft for the eccentric mass via bevel gears. Typically, an opposing pair of rotary shafts are disposed opposite to one another relative to the center line of rotation of the rolling wheel. Three or more rotary shafts may be disposed in such a manner that their eccentric masses are distributed so as to assure good weight balance. The center line of rotation of the rotary shaft may be located in parallel with a linear line radially extending from the center line of rotation of the rolling wheel. The rotary shafts may assume the position where their center lines are located in the spaced relation in the axial direction of the center line of rotation of the rolling wheel. The rolling wheel made of steel plate is preferably covered with a layer of rubber coating.

Inventors

  • 👤 Hisanori Sadahiro

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 15:17
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/28; E01C19/286; B; B06; B06B; B06B1/00; B06B1/10; B06B1/16; E01C19/287; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18544; Y10T74/18552

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 104 words
In a mechanism for generating vibrations for a ground compacting machine of the type including a rolling wheel, the improvement consisting in that at least one rotary shaft with an eccentric mass fixedly mounted thereon is rotatably supported in the rolling wheel in such a manner that the center line of rotation of said rotary shaft is located on a linear line extending in parallel with the radial direction relative to the center line of rotation of the rolling wheel whereby the ground contact portion on the rolling wheel is vibrated in the horizontal plane by rotating the rotary shaft for the eccentric mass.
Claim 2
Dependent Claim 104 words
In a mechanism for generating vibrations for a ground compacting machine of the type including a rolling wheel, the improvement consisting in that at least one rotary shaft with an eccentric mass fixedly mounted thereon is rotatably supported in the rolling wheel in such a manner that the center line of rotation of said rotary shaft is located on a linear line extending in parallel with the radial direction relative to the center line of rotation of the rolling wheel whereby the ground contact portion on the rolling wheel is vibrated in the horizontal plane by rotating the rotary shaft for the eccentric mass.
Claim 3
Dependent Claim 51 words
A mechanism for generating vibrations for a ground compacting machine as defined in claim 1, wherein the rotary shaft assumes the position in the rolling wheel where the center line of rotation thereof is located on a radial line extending outwardly from the center line of rotation of the rolling wheel.
Claim 4
Dependent Claim 34 words
A mechanism for generating vibrations for a ground compacting machine as defined in claim 1, wherein two or more rotary shafts with eccentric masses fixedly mounted thereon are rotatably supported in the rolling wheel.
Claim 5
Dependent Claim 49 words
A mechanism for generating vibrations for a ground compacting machine as defined in claim 3, wherein the rotary shafts are positioned in the rolling wheel such that their center lines of rotation are located on radial lines extending outwardly from the center line of rotation of the rolling wheel.
Claim 6
Dependent Claim 50 words
A mechanism for generating vibrations for a ground compacting machine as defined in claim 3, wherein the rotary shafts are positioned in the rolling wheel such that their center lines are located in the spaced relation in the axial direction of the center line of rotation of the rolling wheel.
Claim 7
Dependent Claim 47 words
A mechanism for generating vibrations for a ground compacting machine as defined in claim 1, wherein the rolling wheel is made of rigid material and is covered with a layer of coating of elastomeric material such as rubber or the like over the whole circumferential surface thereof.

References Cited (Backward Citations)

DE822979C Cited
US3415174A Cited
US3778177A Cited
US4152943A Cited
US4219287A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-03-24 1989-09-23 1990-03-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-03-24 1993-09-23 1994-03-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-03-24 1997-09-23 1998-03-25 $7700.00 Window Closed / Lapsed

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