GB2261840A - A base plate for a plate compactor - Google Patents

A base plate for a plate compactor Download PDF

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Publication number
GB2261840A
GB2261840A GB9203752A GB9203752A GB2261840A GB 2261840 A GB2261840 A GB 2261840A GB 9203752 A GB9203752 A GB 9203752A GB 9203752 A GB9203752 A GB 9203752A GB 2261840 A GB2261840 A GB 2261840A
Authority
GB
United Kingdom
Prior art keywords
base plate
plate
compactor
compaction
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9203752A
Other versions
GB9203752D0 (en
GB2261840B (en
Inventor
John Williamson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ERRUT PROD INT
Original Assignee
ERRUT PROD INT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ERRUT PROD INT filed Critical ERRUT PROD INT
Priority to GB9203752A priority Critical patent/GB2261840B/en
Publication of GB9203752D0 publication Critical patent/GB9203752D0/en
Priority to EP93301218A priority patent/EP0557108B1/en
Priority to AT93301218T priority patent/ATE121478T1/en
Priority to DE69300112T priority patent/DE69300112T2/en
Priority to DK93301218.9T priority patent/DK0557108T3/en
Publication of GB2261840A publication Critical patent/GB2261840A/en
Application granted granted Critical
Publication of GB2261840B publication Critical patent/GB2261840B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • Soil Sciences (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Road Paving Machines (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

A base plate (1) for a plate compactor has a first surface (2) for use in initial compaction of material and a second surface (3) extending therefrom for final compaction of the material. The first surface 2 may be inclined or curved upwardly. The second surface 3 may be divided into two or more spaced surface sections 3', 3''. <IMAGE>

Description

1. ' -) i --- ' 1 A Base Plate for a Plate Compactor The present invention
relates to a base plate for a plate compactor and a compactor provided with such a base plate.
Known plate compactors have a flat base plate, which is usually curved in an upwards direction at both ends to allow the compactor to ride over small obstacles such as stones.
The heavier the plate compactor, the more likely it is to become buried when compacting soft ground. This tends to occur when the compactor is driven by a heavy diesel engine. In order to overcome this problem it is known to increase the area of the base plate. However, this reduces the static weight of the plate compactor per unit area of the plate, and therefore the dynamic force per unit area, thus reducing the degree of compaction.
An object of the present invention is to provide a base plate for a plate compactor by means of which the static and dynamic force per unit area can be increased without the base plate sinking into softer ground.
2 The invention provides a base plate for a plate compactor having a first surface for use in initial compaction of material and a second surface depending therefrom for final compaction of the material.
The second surface may be stepped downwardly relative to the first surface. Alternatively, the first surface may be inclined and/or curved upwardly from the second surface.
Thus, when performing initial compaction on softer ground both the first and second surfaces are used, thereby minimizing the risk of sinking of the compactor. During final compaction, only the second surface is used, thus providing an increased static and dynamic force per unit area.
Embodiments of the invention will now be described with reference to the accompanying drawings, wherein:
Figure 1 is a side view of a base plate having a stepped second surface, Figure 2 is an underneath view of the base plate of Fi gure 1, Figure 3 shows diagrammatically in side view the base 3 plate of Figure 1 during initial compaction, Figure 4 shows in side view the base plate of Figure 1 during final compaction, Figures 5 and 6 show in side view alternative base plates, Figure 7 shows diagrammatically in side view the bass plate of Figure 5 during initial compaction, and Figure 8 shows in side view the base plate of Figure 6 during final compaction.
Figures 9A and 9B show in side view alternative base plates in which the second surface is divided.
In Figures 1 to 4 a compactor base plate 1 has a first surface 2 and a second surface 3 depending therefrom via a step 4.
In Figure 3 the base plate is shown during initial compaction of soft ground in which both the first surface 2 and the second surface 3 take part in compaction. As the compacted ground becomes harder, th first surface 2 becomes less and less effective until compaction is performed solely by the second surface 3 4 providing an increased static and dynamic force per unit area than for the surfaces 2 and 3 together.
As shown in Figure 2, the second surface 3 extends laterally up to one side 5 of the base plate 1 so that the base plate can be used to provide final compaction up to an edge, e.g. to a kerb. If desired, the second surface 3 can be extended laterally up to the opposite edge 51 of the base plate 1 so that compaction can be performed up to opposite kerbs without turning the compactor round.
Figure 5 shows an alternative base plate in which the first surface 2 is curved downwardly to meet the second surface 3, and Figure 6 shows an alternative base plate in which the first surface 2 is inclined downwardly towards the base plate 1.
Figure 7 shows the base plate of Figure 5 during initial compaction and Figure 8 shows the base plate of Figure 6 during final compaction.
The second surface 3 need not necessarily be a single continous surface. It could, for example, be formed as two or more separated surface portions 31, 311, as shown in Figures 9A and 9B.
1 Cl ai ms:
1. A base plate for a plate compactor having a first surface for use in initial compaction of material and a second surface depending therefrom for final compaction of the material.
2. A base plate as claimed in claim 1, wherein the second surface is stepped downwardly relative to the first surface.
3. A base plate as claimed in claim 1, wherein the first surface is inclined and/or curved upwardly from the second surface.
4. A base plate as claimed in any one of the preceding claims, wherein the second surface extends up to one side of the first surface to enable final compaction up to an edge.
5. A base plate as claimed in claim 4, wherein the second surface extends up to opposite sides of the first surface to enable final compaction up to an edge from both sides of the base plate.
6. A base plate as claimed in any one of the preceding claims, wherein the second surface is divided into two 6 or more spaced surface portions.
7. A base plate for a compactor substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.
8. A plate compactor having a base plate as claimed in any one of the preceding claims.
1 Amendments to the claims have been filed as follows 1. A base plate for a plate compactor having a first surface for use in initial compaction of material and a second surface depending therefrom for final compaction of the material, wherein the projected area of the second surface is not more than substantially half of the projected area of the first surface.
2. A base plate as claimed in claim 1, wherein the projected area of the second surface is not more than substantially one third of the projected area of the first surface.
3. A base plate as claimed in claim 1 or 2, wherein the second surface is stepped downwardly relative to the first surface.
4. A base plate as claimed in claim 1 or 2, wherein the first surface is inclined and/or curved upwardly from the second surface.
5. A base plate as claimed in any one of the preceding claims, wherein the second surface extends up to one side of the first surface to enable final compaction up to an edge.
1 116 - 6. A base plate as claimed in claim 5, wherein the second surface extends up to opposite sides of the first surface to enable final compaction up to an edge from both sides of the base plate.
7. A base plate as claimed in any one of the preceding claims, wherein the second surface is divided into two or more spaced surface portions.
8. A base plate for a compactor substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.
9. A plate compactor having a base plate as claimed in any one of the preceding claims.
j 1 1 J
GB9203752A 1992-02-21 1992-02-21 A base plate for a plate compactor Expired - Fee Related GB2261840B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB9203752A GB2261840B (en) 1992-02-21 1992-02-21 A base plate for a plate compactor
EP93301218A EP0557108B1 (en) 1992-02-21 1993-02-19 A base plate for a plate compactor
AT93301218T ATE121478T1 (en) 1992-02-21 1993-02-19 BASE PLATE FOR A PLATEWURT MAKER.
DE69300112T DE69300112T2 (en) 1992-02-21 1993-02-19 Base plate for a plate cutter.
DK93301218.9T DK0557108T3 (en) 1992-02-21 1993-02-19 Bottom plate for a plate vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9203752A GB2261840B (en) 1992-02-21 1992-02-21 A base plate for a plate compactor

Publications (3)

Publication Number Publication Date
GB9203752D0 GB9203752D0 (en) 1992-04-08
GB2261840A true GB2261840A (en) 1993-06-02
GB2261840B GB2261840B (en) 1995-03-22

Family

ID=10710820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9203752A Expired - Fee Related GB2261840B (en) 1992-02-21 1992-02-21 A base plate for a plate compactor

Country Status (5)

Country Link
EP (1) EP0557108B1 (en)
AT (1) ATE121478T1 (en)
DE (1) DE69300112T2 (en)
DK (1) DK0557108T3 (en)
GB (1) GB2261840B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2549089A (en) * 2016-03-31 2017-10-11 Neil Doyle Mark Improvements to compaction devices

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29700741U1 (en) * 1997-01-17 1997-03-06 Bomag GmbH, 56154 Boppard Base plate for a plate compressor
DE19805296A1 (en) 1998-02-10 1999-09-02 Wacker Werke Kg Manually operated self-propelled vibratory plate

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB656493A (en) * 1948-09-17 1951-08-22 Bell Noel Gonne Improvements relating to pile hammers and like percussion machines
GB659423A (en) * 1949-02-02 1951-10-24 Albert Godenir Improvements in or relating to tamping machines
GB785524A (en) * 1956-05-11 1957-10-30 Leukart Machine Co Inc J Impacting machine
GB897636A (en) * 1957-09-12 1962-05-30 Warsop Power Tools Improvements in apparatus for tamping soil and the like
GB1191489A (en) * 1966-09-02 1970-05-13 Hermann Wacker Improvements in or relating to Motor-Driven Vibratory or Percussive Implements.
GB1534813A (en) * 1976-05-07 1978-12-06 Helliot B Pneumatic reciprocating apparatus
SU937596A1 (en) * 1980-09-25 1982-06-23 Самаркандский Государственный Архитектурно-Строительный Институт Soil-compacting working member
US4484640A (en) * 1981-09-22 1984-11-27 Dnepropetrovsky Inzhenerno-Stroitelny Institut Tool for formation of holes in macroporous compressible soils
SU1384704A1 (en) * 1986-03-21 1988-03-30 Ярославское Специализированное Управление Треста "Гидроспецфундаментстрой" Apparatus for forming wells
GB2207380A (en) * 1987-07-21 1989-02-01 Jurg Gottfried Staubli Chisel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327598A (en) * 1965-03-23 1967-06-27 Wayer Henry Compacting machine
US3759624A (en) * 1971-04-19 1973-09-18 Edmore Tool And Grinding Inc Trench compactor
NL8303676A (en) * 1983-10-25 1985-05-17 Ballast Nedam Groep Nv METHOD AND APPARATUS FOR COMPACTING SOIL
SU1318654A1 (en) * 1985-11-10 1987-06-23 Ростовский инженерно-строительный институт Tamper for consolidating cohesive soil

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB656493A (en) * 1948-09-17 1951-08-22 Bell Noel Gonne Improvements relating to pile hammers and like percussion machines
GB659423A (en) * 1949-02-02 1951-10-24 Albert Godenir Improvements in or relating to tamping machines
GB785524A (en) * 1956-05-11 1957-10-30 Leukart Machine Co Inc J Impacting machine
GB897636A (en) * 1957-09-12 1962-05-30 Warsop Power Tools Improvements in apparatus for tamping soil and the like
GB1191489A (en) * 1966-09-02 1970-05-13 Hermann Wacker Improvements in or relating to Motor-Driven Vibratory or Percussive Implements.
GB1534813A (en) * 1976-05-07 1978-12-06 Helliot B Pneumatic reciprocating apparatus
SU937596A1 (en) * 1980-09-25 1982-06-23 Самаркандский Государственный Архитектурно-Строительный Институт Soil-compacting working member
US4484640A (en) * 1981-09-22 1984-11-27 Dnepropetrovsky Inzhenerno-Stroitelny Institut Tool for formation of holes in macroporous compressible soils
SU1384704A1 (en) * 1986-03-21 1988-03-30 Ярославское Специализированное Управление Треста "Гидроспецфундаментстрой" Apparatus for forming wells
GB2207380A (en) * 1987-07-21 1989-02-01 Jurg Gottfried Staubli Chisel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2549089A (en) * 2016-03-31 2017-10-11 Neil Doyle Mark Improvements to compaction devices

Also Published As

Publication number Publication date
DE69300112T2 (en) 1996-01-04
GB9203752D0 (en) 1992-04-08
EP0557108A1 (en) 1993-08-25
GB2261840B (en) 1995-03-22
DE69300112D1 (en) 1995-05-24
DK0557108T3 (en) 1995-09-18
EP0557108B1 (en) 1995-04-19
ATE121478T1 (en) 1995-05-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090221