GB2261840A - A base plate for a plate compactor - Google Patents
A base plate for a plate compactor Download PDFInfo
- 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
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)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Crushing And Pulverization Processes (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (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
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 |
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. |
EP93301218A EP0557108B1 (en) | 1992-02-21 | 1993-02-19 | A base plate for a plate compactor |
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)
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)
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)
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)
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 |
-
1992
- 1992-02-21 GB GB9203752A patent/GB2261840B/en not_active Expired - Fee Related
-
1993
- 1993-02-19 AT AT93301218T patent/ATE121478T1/en not_active IP Right Cessation
- 1993-02-19 DK DK93301218.9T patent/DK0557108T3/en active
- 1993-02-19 EP EP93301218A patent/EP0557108B1/en not_active Expired - Lifetime
- 1993-02-19 DE DE69300112T patent/DE69300112T2/en not_active Expired - Fee Related
Patent Citations (10)
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)
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 |
---|---|
GB2261840B (en) | 1995-03-22 |
DE69300112T2 (en) | 1996-01-04 |
DE69300112D1 (en) | 1995-05-24 |
DK0557108T3 (en) | 1995-09-18 |
GB9203752D0 (en) | 1992-04-08 |
ATE121478T1 (en) | 1995-05-15 |
EP0557108A1 (en) | 1993-08-25 |
EP0557108B1 (en) | 1995-04-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20090221 |