FR2757550A1 - Blowing machine for clearing leaves and debris in mine clearance operations - Google Patents
Blowing machine for clearing leaves and debris in mine clearance operations Download PDFInfo
- Publication number
- FR2757550A1 FR2757550A1 FR9615827A FR9615827A FR2757550A1 FR 2757550 A1 FR2757550 A1 FR 2757550A1 FR 9615827 A FR9615827 A FR 9615827A FR 9615827 A FR9615827 A FR 9615827A FR 2757550 A1 FR2757550 A1 FR 2757550A1
- Authority
- FR
- France
- Prior art keywords
- nozzle
- slot
- release device
- blowing
- equal
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H11/00—Defence installations; Defence devices
- F41H11/12—Means for clearing land minefields; Systems specially adapted for detection of landmines
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
- A01G20/40—Apparatus for cleaning the lawn or grass surface
- A01G20/43—Apparatus for cleaning the lawn or grass surface for sweeping, collecting or disintegrating lawn debris
- A01G20/47—Vacuum or blower devices
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning In General (AREA)
Abstract
Description
Le domaine technique de l'invention est celui des dispositifs permettant le dégagement d'une zone de terrain par soufflage. The technical field of the invention is that of devices allowing the clearance of an area of land by blowing.
De tels dispositifs sont utilisés notamment au cours des opérations de déminage. Ils comportent un dispositif d'alimentation en air sous pression (tel un compresseur) relié à un embout de soufflage. Such devices are used in particular during demining operations. They include a pressurized air supply device (such as a compressor) connected to a blowing nozzle.
Ils permettent d'enlever les feuilles mortes, l'eau et les petits cailloux de zones de terrain bien délimitées (par exemple des creux de sols ou "nids de poules"), ce qui facilite la recherche ultérieure de mines, soit au moyen de tiges enfoncées dans le sol, soit avec des détecteurs, par exemple à induction. They remove dead leaves, water and small pebbles from well-defined areas of land (for example hollows or "potholes"), which makes it easier to find mines later, either by rods driven into the ground, either with detectors, for example induction.
Les dispositifs connus ont pour principal inconvénient d'engendrer des tourbillons qui nuisent à l'efficacité du dégagement, car ils provoquent le retour d'une partie des obstacles dégagés. The main drawbacks of the known devices are that they generate vortices which affect the effectiveness of the clearance, since they cause the return of part of the obstacles released.
On accroît habituellement l'efficacité du dégagement en augmentant la pression de l'air évacué, mais cet accroissement de pression risque de provoquer l'initiation des mines posées ou enfouies. The efficiency of the release is usually increased by increasing the pressure of the exhaust air, but this increase in pressure may cause the initiation of the mines laid or buried.
De plus, les dispositifs connus sont inefficaces vis à vis des feuilles mortes collées par la pluie, ou bien du sable ou de la neige non fondante. In addition, the known devices are ineffective with regard to fallen leaves stuck by rain, or sand or non-melting snow.
C'est le but de l'invention que de proposer un dispositif de dégagement ne présentant pas de tels inconvénients. It is the object of the invention to propose a release device which does not have such drawbacks.
Ainsi le dispositif de dégagement selon l'invention permet de déblayer en un seul passage les feuilles mortes même collées, ou bien la neige, l'eau ou le sable. Thus the release device according to the invention allows to clear in a single pass the dead leaves even stuck, or snow, water or sand.
Le dispositif selon l'invention peut être avantageusement employé dans le domaine civil, par exemple pour les opérations de nettoyage urbain. The device according to the invention can advantageously be used in the civil field, for example for urban cleaning operations.
Mais le dispositif selon l'invention est plus particulièrement destiné à faciliter les opérations de déminage du terrain pendant ou après un conflit armé. However, the device according to the invention is more particularly intended to facilitate land clearance operations during or after an armed conflict.
En effet, le dispositif selon l'invention permet de dégager une zone de terrain sans provoquer l'initiation intempestive d'une mine, notamment antipersonnel. Indeed, the device according to the invention allows to clear an area of land without causing the untimely initiation of a mine, in particular antipersonnel.
Ainsi l'invention a pour objet un dispositif de dégagement d'une zone de terrain par soufflage et comprenant un embout de soufflage relié à un dispositif d'alimentation en air, dispositif caractérisé en ce que l'embout comporte une buse d'évacuation d'air ayant la forme d'une fente. Thus the subject of the invention is a device for clearing a ground area by blowing and comprising a blowing end piece connected to an air supply device, device characterized in that the end piece comprises a discharge nozzle d air having the form of a slit.
Avantageusement la fente aura une largeur inférieure ou égale à 3 mm. Advantageously, the slot will have a width less than or equal to 3 mm.
La surface de la fente pourra être choisie de façon à limiter la valeur de la composante verticale de la pression de soufflage au sol (cela afin d'éviter l'initiation d'une mine sensible à la pression). The surface of the slot may be chosen so as to limit the value of the vertical component of the ground blowing pressure (this in order to avoid the initiation of a pressure-sensitive mine).
L'embout pourra comporter, d'une part une partie évasée sur laquelle est aménagée la buse d'évacuation, et d'autre part une tubulure d'admission d'air qui est destinée à être reliée à un tuyau d'alimentation, et la surface de la fente de la buse pourra être supérieure ou égale à la surface du tuyau d'alimentation. The end fitting may comprise, on the one hand a flared part on which the discharge nozzle is arranged, and on the other hand an air intake pipe which is intended to be connected to a supply pipe, and the surface of the nozzle slot may be greater than or equal to the surface of the supply pipe.
La surface de la fente pourra être égale à la surface du tuyau d'alimentation. The surface of the slot may be equal to the surface of the supply pipe.
L'embout pourra être réalisé en matière plastique. The tip may be made of plastic.
Le dispositif de dégagement selon l'invention peut avantageusement être appliqué à la réalisation d'opérations de déminage d'une zone de terrain. The release device according to the invention can advantageously be applied to carrying out demining operations on a terrain area.
L'invention sera mieux comprise à la lecture de la description qui va suivre d'un mode particulier de réalisation, description faite en référence aux dessins annexés et dans lesquels:
-la figure l est un schéma de principe général de la mise en oeuvre d'un dispositif de dégagement selon l'invention,
-la figure 2 est une vue frontale de l'embout de dégagement seul,
-la figure 3 est une vue latérale et en coupe de l'embout de dégagement seul, coupe suivant le plan AA repéré à la figure 2.The invention will be better understood on reading the description which follows of a particular embodiment, description made with reference to the appended drawings and in which:
FIG. 1 is a general diagram of the implementation of a release device according to the invention,
FIG. 2 is a front view of the release nozzle alone,
FIG. 3 is a side and sectional view of the release nozzle alone, section along the plane AA identified in FIG. 2.
La figure l montre un fantassin 1 mettant en oeuvre sur le terrain un dispositif de dégagement 2 selon l'invention. FIG. 1 shows an infantryman 1 implementing on the ground a release device 2 according to the invention.
Le dispositif de dégagement comprend un embout de soufflage 3 qui est relié par un tuyau 4 à un dispositif d'alimentation en air 5. The release device comprises a blowing end piece 3 which is connected by a pipe 4 to an air supply device 5.
Le dispositif d'alimentation en air sera par exemple constitué par un compresseur entraîné par un moteur électrique. On choisira par exemple un compresseur délivrant une pression de l'ordre de 1,5 Méga Pascals. The air supply device will for example consist of a compressor driven by an electric motor. We will choose for example a compressor delivering a pressure of the order of 1.5 Mega Pascals.
L'embout de soufflage permet de dégager les fragments de terre et les feuilles mortes 6 recouvrant une mine 7. The blowing nozzle makes it possible to release the fragments of soil and the dead leaves 6 covering a mine 7.
Les figures 2 et 3 montrent un embout de soufflage 3 selon l'invention. Cet embout comporte une tubulure cylindrique d'admission d'air 8 qui est destinée à être reliée au tuyau d'alimentation 4 au moyen d'une bride de type connu et non représentée. Figures 2 and 3 show a blowing nozzle 3 according to the invention. This nozzle has a cylindrical air intake pipe 8 which is intended to be connected to the supply pipe 4 by means of a flange of known type and not shown.
L'embout 3 comporte également une partie évasée 9 qui présente à une de ses extrémité une fente constituant une buse d'évacuation 10. L'embout sera par exemple réalisé en matière plastique injectée, telle un polyéthylène. The nozzle 3 also has a flared portion 9 which has at one of its ends a slot constituting a discharge nozzle 10. The nozzle will for example be made of injected plastic, such as polyethylene.
Avantageusement, on donnera à la fente 10 de l'embout selon l'invention une largeur inférieure ou égale à 2mm. Advantageously, the slot 10 of the endpiece according to the invention will be given a width less than or equal to 2mm.
Une telle disposition permet d'obtenir un jet d'air d'épaisseur réduite et qui n'engendre pas de tourbillons. Such an arrangement makes it possible to obtain an air jet of reduced thickness and which does not generate vortices.
Il en résulte la possibilité de dégager progressivement les feuilles ou autres fragments recouvrant la mine sans que le courant d'air engendré ne les positionne à nouveau sur la mine. This results in the possibility of gradually clearing the leaves or other fragments covering the mine without the generated air current positioning them again on the mine.
L'embout selon l'invention permet également de dégager en une seule opération toute une bande de terrain ayant la largeur de la partie évasée de l'embout. The tip according to the invention also allows to clear in a single operation a whole strip of land having the width of the flared portion of the tip.
On choisira une pression d'emploi qui soit inférieure à la pression susceptible de déclencher le fonctionnement de la mine. We will choose an operating pressure which is lower than the pressure likely to trigger the operation of the mine.
On déterminera donc la surface de la fente en fonction de la pression délivrée par le compresseur de telle sorte que la valeur de la composante verticale de la pression de soufflage obtenue au sol soit bien inférieure à la pression pouvant déclencher le fonctionnement des mines connues. The surface area of the slit will therefore be determined as a function of the pressure delivered by the compressor so that the value of the vertical component of the blowing pressure obtained on the ground is much lower than the pressure which can trigger the operation of known mines.
L'Homme du Métier déterminera aisément les dimensions de la fente en fonction des caractéristiques du compresseur utilisé et de celles des mines connues. Those skilled in the art will easily determine the dimensions of the slot according to the characteristics of the compressor used and those of known mines.
A titre d'exemple, il suffit généralement d'utiliser un compresseur délivrant une pression de 1,5 MPa et raccordé à un tuyau de 25 mm de diamètre. For example, it is generally sufficient to use a compressor delivering a pressure of 1.5 MPa and connected to a pipe 25 mm in diameter.
La surface de la fente de la buse sera alors choisie légèrement supérieure ou égale à la surface du tuyau d'alimentation. Cela afin d'éviter un accroissement de pression provoqué par la buse. The surface of the nozzle slot will then be chosen slightly greater than or equal to the surface of the supply pipe. This is to avoid an increase in pressure caused by the nozzle.
On pourra avantageusement adopter un embout 3 dans lequel la surface de la fente 10 est égale à la surface du tuyau d'alimentation 4. It is advantageously possible to adopt a nozzle 3 in which the surface of the slot 10 is equal to the surface of the supply pipe 4.
Une telle disposition permet d'obtenir la pression maximale donc le meilleur rendement tout en évitant une surpression susceptible de provoquer l'initiation de la mine. Such an arrangement makes it possible to obtain the maximum pressure and therefore the best yield while avoiding an overpressure capable of causing the initiation of the mine.
A titre d'exemple on pourra adopter un embout 3 dont la tubulure cylindrique 8 a un diamètre interne d'environ 20mm et dont la fente 10 a une longueur de 157 mm et une largeur de 2mm. By way of example, it is possible to adopt a nozzle 3 whose cylindrical tube 8 has an internal diameter of approximately 20mm and whose slot 10 has a length of 157 mm and a width of 2mm.
L'invention est principalement destinée à faciliter les opérations de déminage de zones de terrain. Elle permet de dégager la terre et les résidus végétaux, et elle permet également d'évacuer l'eau des flaques. Elle assure également efficacement le dégagement de la neige non fondante ou du sable. Dans tous les cas les opérations de dégagement peuvent être conduites rapidement sans risquer d'initier les mines recouvertes. The invention is mainly intended to facilitate demining operations in terrain areas. It clears the earth and plant residues, and it also allows water to drain from the puddles. It also effectively ensures the release of non-melting snow or sand. In all cases, the clearance operations can be carried out quickly without risking initiating the covered mines.
L'invention peut également être utilisée dans le domaine civil pour faciliter les opérations de nettoyage urbain, tel le dégagement des feuilles mortes ou le nettoyage des trottoirs. The invention can also be used in the civil field to facilitate urban cleaning operations, such as clearing dead leaves or cleaning sidewalks.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9615827A FR2757550B1 (en) | 1996-12-23 | 1996-12-23 | DEVICE FOR CLEARING A LAND AREA BY BLOWING AND APPLICATION TO CARRYING OUT DEMINING OPERATIONS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9615827A FR2757550B1 (en) | 1996-12-23 | 1996-12-23 | DEVICE FOR CLEARING A LAND AREA BY BLOWING AND APPLICATION TO CARRYING OUT DEMINING OPERATIONS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2757550A1 true FR2757550A1 (en) | 1998-06-26 |
| FR2757550B1 FR2757550B1 (en) | 1999-01-15 |
Family
ID=9498981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9615827A Expired - Fee Related FR2757550B1 (en) | 1996-12-23 | 1996-12-23 | DEVICE FOR CLEARING A LAND AREA BY BLOWING AND APPLICATION TO CARRYING OUT DEMINING OPERATIONS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2757550B1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000036363A1 (en) * | 1998-12-17 | 2000-06-22 | Elnaggar, Khaled | Vehicle mounted suction device for uncovering mines buried in sand |
| RU2442945C1 (en) * | 2010-10-18 | 2012-02-20 | Федеральное государственное унитарное предприятие "Летно-исследовательский институт имени М.М. Громова" | Countermine technique for mine field with sonic bang |
| CN102966065A (en) * | 2012-12-07 | 2013-03-13 | 中联重科股份有限公司 | Blowing nozzle for blowing snow and snow blowing vehicle |
| CN103015357A (en) * | 2012-12-12 | 2013-04-03 | 中联重科股份有限公司 | Snow blowing vehicle and blowing nozzle thereof |
| CN104249069A (en) * | 2013-06-26 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Blower |
| WO2014205923A1 (en) * | 2013-06-26 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Suction and blowing apparatus |
| CN113624073A (en) * | 2021-07-12 | 2021-11-09 | 山东兰动智能科技有限公司 | Pneumatic mine-clearing device and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288886A (en) * | 1979-08-23 | 1981-09-15 | Frederick Siegler | Air broom |
| US4413371A (en) * | 1981-06-29 | 1983-11-08 | Emerson Electric Co. | Blower attachment for portable power unit |
| DE8815616U1 (en) * | 1988-12-16 | 1989-02-02 | Diehl, Klaus, Dipl.-Ing. (FH), 6700 Ludwigshafen | Device for drying, heating and cleaning surfaces of road and path construction |
| DE19512537A1 (en) * | 1994-08-24 | 1996-02-29 | Daimler Benz Aerospace Ag | System for detection and removal or detonation of buried mines |
-
1996
- 1996-12-23 FR FR9615827A patent/FR2757550B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288886A (en) * | 1979-08-23 | 1981-09-15 | Frederick Siegler | Air broom |
| US4413371A (en) * | 1981-06-29 | 1983-11-08 | Emerson Electric Co. | Blower attachment for portable power unit |
| DE8815616U1 (en) * | 1988-12-16 | 1989-02-02 | Diehl, Klaus, Dipl.-Ing. (FH), 6700 Ludwigshafen | Device for drying, heating and cleaning surfaces of road and path construction |
| DE19512537A1 (en) * | 1994-08-24 | 1996-02-29 | Daimler Benz Aerospace Ag | System for detection and removal or detonation of buried mines |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000036363A1 (en) * | 1998-12-17 | 2000-06-22 | Elnaggar, Khaled | Vehicle mounted suction device for uncovering mines buried in sand |
| RU2442945C1 (en) * | 2010-10-18 | 2012-02-20 | Федеральное государственное унитарное предприятие "Летно-исследовательский институт имени М.М. Громова" | Countermine technique for mine field with sonic bang |
| CN102966065A (en) * | 2012-12-07 | 2013-03-13 | 中联重科股份有限公司 | Blowing nozzle for blowing snow and snow blowing vehicle |
| CN102966065B (en) * | 2012-12-07 | 2014-12-10 | 中联重科股份有限公司 | Blowing nozzle for blowing snow and snow blowing vehicle |
| CN103015357A (en) * | 2012-12-12 | 2013-04-03 | 中联重科股份有限公司 | Snow blowing vehicle and blowing nozzle thereof |
| CN104249069A (en) * | 2013-06-26 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Blower |
| WO2014205923A1 (en) * | 2013-06-26 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Suction and blowing apparatus |
| CN113624073A (en) * | 2021-07-12 | 2021-11-09 | 山东兰动智能科技有限公司 | Pneumatic mine-clearing device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2757550B1 (en) | 1999-01-15 |
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|---|---|---|---|
| ST | Notification of lapse |