EP1954444A1 - Trockeneisabgabegerät - Google Patents
TrockeneisabgabegerätInfo
- Publication number
- EP1954444A1 EP1954444A1 EP06805886A EP06805886A EP1954444A1 EP 1954444 A1 EP1954444 A1 EP 1954444A1 EP 06805886 A EP06805886 A EP 06805886A EP 06805886 A EP06805886 A EP 06805886A EP 1954444 A1 EP1954444 A1 EP 1954444A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dry ice
- compressed air
- switching element
- mounting
- switching
- 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
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 235000011089 carbon dioxide Nutrition 0.000 title claims abstract description 84
- 229960004424 carbon dioxide Drugs 0.000 title abstract 2
- 238000005422 blasting Methods 0.000 claims abstract description 38
- 230000000903 blocking effect Effects 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 239000008187 granular material Substances 0.000 description 16
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
Definitions
- the invention relates to a device for selectively dispensing compressed air or a mixture of compressed air and dry ice for a dry ice blasting device, with a discharge line to which a supply line for compressed air and dry ice can be connected, and with a first and a second switching element, which via a control line with the dry ice blasting device can be connected, wherein by means of the first switching element, the supply of compressed air and by means of the second switching element, the admixture of dry ice to be supplied compressed air on and off.
- the device can be connected to a dry ice blasting device, which in turn can be connected to a compressed air source and has a supply of dry ice and a metering device with which the dry ice of the compressed air can be added.
- the dry ice is stored in the form of dry ice granules, which usually has the size of rice grains in the form of so-called pellets, and introduced by means of the metering device in the flow path of the compressed air, so that it mixes with the compressed air.
- the devices mentioned above have a first and a second switching element.
- a valve of the dry ice blasting device can be opened, so that compressed air can be supplied to the device via the supply line, which can be directed by the device onto the surface to be cleaned.
- dry ice granules can be mixed by means of the metering device of the dry ice blasting device of the compressed air, so that the mixture of compressed air and dry ice can be directed to the surface to be cleaned.
- the known device has a double contact switch with two contacts, which can be actuated successively by pivoting a lever. If only a first contact is actuated, the device transmits a first control signal to the dry ice blasting device. As a result, compressed air is supplied to the device from the dry ice blasting device via the supply line. If the second contact is actuated, the device transmits a second control signal to the dry ice blasting device, as a result of which dry air granules are added to the compressed air. The actuation of the two contacts is dependent on the pivoting position of the lever.
- a device for cleaning surfaces with dry ice granules in which a blasting gun is used with a first supply line for the dry ice granules and a second supply line for compressed air.
- the quantity of granules and compressed air can be regulated by the operator with the help of two regulators.
- the two regulators can be adjusted independently of each other so that, depending on the surface condition, the impact intensity and flow rate of the granulate can be varied.
- a blasting gun for exposing a surface with a mixture of a liquid and granules in the form of a vortex jet gun is known from the published patent application DE 196 54 779 Al.
- a needle valve With the help of a needle valve, the supply of liquid, such as water, can be opened and closed.
- Granules are supplied in the form of a granular air mixture, d. H.
- a trigger pulls both the needle valve and a proximity or pressure switch.
- Object of the present invention is to develop a device of the generic type such that it has a simpler handling.
- This object is achieved in a device of the type mentioned in the present invention, that the second switching element is actuated independently of the first switching element.
- the two switching elements can thus be operated independently by the user.
- the handling of the device is simplified because an inadvertent admixture of dry ice to be supplied compressed air is practically impossible.
- the user For the addition of dry ice, the user must rather actuate the second switching element independently of the first switching element. This gives the user in particular the possibility of first converting the second switching element designed, for example, as a selector switch to the switching position desired by it, and only then to actuate the first switching element to provide compressed air.
- a first switching position of the selector switch In a first switching position of the selector switch, only compressed air is supplied to the device, whereas in a second switching position of the selector switch the compressed air is mixed with dry ice. If a surface is to be acted upon only with compressed air, the user transfers the selector switch in the first switching position. He can then either release the supply of compressed air by pressing the first switching element or prevent. If a surface is to be subjected to a mixture of compressed air and dry ice, the user transfers the selector switch into its second switching position, so that upon subsequent actuation of the first switching element the compressed air is added as desired to dry ice.
- the control of the dry ice blasting device takes place electrically by means of the first and the second switching element.
- the first switching element and the second switching element as electrical Switch are designed.
- slide switches, toggle switches or pushbutton switches can be used.
- a particularly simple handling can be achieved in that the second switching element is designed as a sliding or toggle switch.
- the first switching element is formed in an advantageous embodiment as a push-button switch.
- the device according to the invention preferably has a housing with a central part surrounding the dispensing line and at least one gripping part, the first switching element and the second switching element being arranged on or in the gripping part. This allows a compact design of the device.
- the second switching element is positioned in an advantageous embodiment on an outer side of the handle part.
- the switching position of the first switching element can thereby be detected by the user in a simple manner.
- the first switching element is preferably positioned within the handle portion and for actuating the first switching element, this is associated with a movable actuating element.
- the actuating element is mounted on the housing of the device according to the invention.
- the actuating element has a pivoting lever. It has proven to be advantageous if the pivot axis of the pivot lever is aligned perpendicular to the longitudinal axis of the discharge line. At a karten embodiment of the pivot lever dips into the housing of the device.
- a second grip part projects in the manner of a pistol grip from the middle part of the housing, wherein the pivot lever is arranged between the two grip parts and dips into the second grip part during a pivoting movement.
- the second handle part can be encompassed by the user in a simple manner like a pistol grip together with the pivot lever, and by pivoting the pivot lever, the first switching element can be actuated to turn on and off the compressed air supply.
- the actuating element can be locked by means of a blocking element.
- the first switching element can thus be actuated by means of the actuating element only if previously the blocking element is transferred from a blocking position into a release position.
- the blocking element is resiliently biased in its blocking position.
- the unloaded blocking element thus automatically assumes its blocking position in which it blocks an actuation of the first switching element and thus a supply of compressed air.
- the blocking element can be designed for example as a rocker arm. It is advantageous if the blocking element is pivotably mounted on the second handle part.
- the pivot axis of the blocking element can be aligned parallel to the pivot axis of the pivot lever.
- the actuating element and the blocking element can be grasped by the user with one hand. The handling of the device according to the invention is thereby additionally simplified.
- the user can simultaneously encompass the actuating element and the blocking element, wherein the blocking element is transferred to its release position and thereby the actuating element can be moved.
- a jet nozzle At the outlet of the discharge line usually a jet nozzle can be connected.
- a surface can be acted on by a different geometry by means of a compressed air jet, which is optionally mixed with dry ice.
- a compressed air jet which is optionally mixed with dry ice.
- a flat jet nozzle can be used, with the help of a flat, but broad compressed air jet can be generated, or it can also be a NOTEstrahldüse be used, with the help of a very compressed compressed air jet can be generated with optional admixture of dry ice.
- the jet nozzle can be screwed to the outlet, for example. Alternatively, a bayonet coupling can be used.
- the device has a mounting element for releasably mounting the device to the dry ice blasting device.
- a mounting element for releasably mounting the device to the dry ice blasting device.
- the mounting element with a corresponding mounting element of the dry ice blasting device is pluggable connectable.
- the production of a connector is to accomplish for the user in a simple way, in particular, the user can connect the mounting element with one hand with the corresponding mounting element of the dry ice blasting device.
- the mounting element forms a receptacle which can be placed on a holding element of the dry ice blasting device.
- the holding element forms a corresponding mounting element, with which a mounting member having a mounting member of the device according to the invention is pluggable connectable.
- the mounting element of the device is designed as a retaining pin which can be inserted into a receptacle of the dry ice blasting device.
- the mounting element of the device is preferably designed as a holding tube that can be placed on a retaining pin of the dry ice blasting device.
- the holding tube is characterized by a high mechanical load capacity. It can be made of metal, for example.
- the device may have a housing with a surrounding the dispensing line middle part from which projects at least one handle part. It is advantageous if the mounting element is arranged on or in the handle part. An integration of the mounting element in the handle allows it to design the device according to the invention particularly compact, while still being given the opportunity to hold the device in a parking position on the dry ice blasting device.
- the housing of the device is made in a cost-producible embodiment of plastic, whereas the mounting member is preferably made of metal to achieve a particularly high mechanical strength.
- the housing has two housing half-shells, which receive the two switching elements and the mounting member and the discharge line, wherein the discharge line passes through a central part of the housing.
- Figure 1 a sectional view of a dry ice dispensing device according to the invention
- FIG. 2 a perspective view of the dry ice dispensing device according to the invention, which is connected to a dry ice blasting device.
- a dry ice dispenser generally designated by the reference numeral 10 which can be connected to a dry ice blasting device 12 is shown schematically.
- the device 10 comprises a housing 14, which is formed by two housing half-shells 15, 16 and a central part 18 and of this pistol grip-like protruding first and second handle parts 19, 20 has.
- the two handle parts 19, 20 are connected together at their free end via a web 21.
- the middle part 18 surrounds a dispensing line 23, which passes through the middle part 18 and has an inlet 24 and an outlet 25.
- a feed line 27 can be connected to the inlet 24, via which optionally compressed air or a mixture of compressed air and dry ice can be guided by the dry ice blasting device 12 to the discharge line 23.
- a pivot lever 29 is arranged, which is mounted by means of a pivot pin 30 about a perpendicular to the longitudinal axis 31 of the discharge line 23 aligned pivot axis 32 pivotally mounted on the central part 18 and the pivot pin 30 adjacent an approximately parallel to the longitudinal axis 31 aligned switching pin 33rd wearing.
- a first switching element in the form of a push button switch 35 can be actuated by pivoting the pivot lever 29.
- the push-button switch 35 is arranged in the first handle part 19 and can be connected via an electrical control line 37 with the dry ice blasting device 12 become.
- the pivot lever 29 with integrally formed switching pin 33 thus forms an actuating element for the push-button switch 35.
- a second switching element in the form of a selector switch 39 is arranged, which is also connected via the control line 37 with the dry ice blasting device 12.
- the free end region of the first handle part 19 surrounds a mounting element in the form of a holding tube 41, which forms a receptacle 42.
- the receptacle 42 is accessible via the free end 43 of the first handle part 19.
- a blocking element in the form of an L-shaped tilting lever 48 is pivotably mounted about a pivot axis 47 aligned parallel to the pivot axis 32 of the pivot lever 29.
- the rocker arm 48 has a first leg 49 and a second leg 50.
- the first leg 49 is arranged on the rear side facing away from the first handle part 19 of the second handle part 20, and the second leg 50 is immersed in the second handle part 20 and is acted upon by a return spring 52 with a spring force through which the rocker arm 48 in the transition region between the first and the second leg 49 and 50 is pressed against a stop 53 formed on the inside by the second handle part 20.
- the rocker arm 48 By pivoting the rocker arm 48 against the restoring force exerted by the restoring spring 52, the first leg 49 can be pivoted into the second grip part 20. This can be done by a user of the dry ice dispensing device 10, the second handle portion 20 engages around with one hand.
- rocker arm 48 If the rocker arm 48 abuts on the stop 53, then it assumes a blocking position in which the free end of the first leg 49 rests against a projection 55 of the pivoting lever 29 facing the first leg 49. In its blocking position thus the rocker arm 48 blocks a movement of the pivot lever 29, so that in the locked position of the rocker arm 48 of the push-button switch 35 can not be operated by means of the pivot lever 29.
- To actuate the pushbutton switch 35 it is rather necessary first to pivot the rocker arm 48 against the spring force of the return spring 52 in a release position in which the free end of the first leg 49 is arranged at a distance from the projection 55, so that the pivot lever 29 to the Swivel axis 32 can be pivoted.
- the dry ice blasting apparatus 12 includes a dry ice storage bin 57 supported on a rack 58. Below the storage container 57, a metering device 59 is arranged, as it is known for example from the patent DE 10 2004 045 770 B3. In the metering device 59 opens a compressed air inlet line 61, which can be connected via a supply line 62 to a compressed air source, not shown in the drawing, known per se.
- a compressed air outlet line 64 From the metering device 59 is a compressed air outlet line 64, to which the supply line 27 can be connected.
- the dry ice blasting device 12 also has a control unit 66 which is connected via an electrical connection line (not shown in the drawing). tion is connected to a connector socket 67. To the connector 67, the control line 37 can be connected.
- the dry ice blasting device 12 is connected to the dry ice dispenser 10 via a hose line 69 which comprises both the supply line 67 for the supply of compressed air and dry ice and the electrical control line 37 for the transmission of electrical control signals.
- the electrical control line 37 can be integrated in a jacket of the feed line 27.
- the metering device 59 can in the flow path of the compressed air dry ice granules, which is stored in the reservoir 57, are introduced, so that it mixes with the supplied via the compressed air inlet line 61 of the metering device 59 compressed air.
- the mixture of compressed air and dry ice can then be supplied via the compressed air outlet line 64 and the supply line 27 of the discharge line 23, so that the mixture can be applied via a connected to the outlet 25 of the discharge line 23 jet nozzle on a surface to be cleaned.
- the selector switch 39 the metering device 59 can be selectively switched on and off by the user. If the metering device 59 is turned on, then dry ice is added to the supplied compressed air, the metering device 59 is turned off, there is no admixture of dry ice.
- an electromagnetically actuated shut-off valve 71 is connected, which can be selectively opened and closed by operating the push-button switch 35 by means of the pivot lever 29. This gives the user the option of pivoting the Swing lever 29, the supply of compressed air to dry ice dispenser 10 optional release or lock.
- the dry ice dispenser 10 is thus characterized by easy handling.
- the user If the user only wants to direct compressed air to a surface to be cleaned, then he transfers the selector switch 39 into a switching position disabling the metering device 59 and then pivots the pivoting lever 29 to actuate the pushbutton switch 35, so that the shut-off valve 71 is opened and compressed air is supplied to the dry ice dispenser 10 , If the compressed air is to be mixed with dry ice granules, the user transfers the selector switch 39 into its switching position which switches on the metering device 59 and subsequently pivots the pivoted lever 29. This then results in dry ice granules being added to the compressed air to be supplied.
- the dry ice dispenser 10 can be fixed to the dry ice blasting device 12 in a parking position.
- the latter has for this purpose on the frame 58 of the control unit 66 adjacent to a vertically oriented holding mandrel 73, on which the first handle part 19 can be placed with the holding tube 41, wherein the retaining mandrel 73 dips into the receptacle 42 via the free end 43 of the first handle part 19.
- the handling of the dry ice dispenser 10 is thereby additionally simplified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
- Multiple-Way Valves (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Gloves (AREA)
- Confectionery (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005057115A DE102005057115A1 (de) | 2005-11-28 | 2005-11-28 | Trockeneisabgabegerät |
| PCT/EP2006/009362 WO2007059819A1 (de) | 2005-11-28 | 2006-09-27 | Trockeneisabgabegerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1954444A1 true EP1954444A1 (de) | 2008-08-13 |
| EP1954444B1 EP1954444B1 (de) | 2011-01-26 |
Family
ID=37453088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06805886A Not-in-force EP1954444B1 (de) | 2005-11-28 | 2006-09-27 | Trockeneisabgabegerät |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1954444B1 (de) |
| AT (1) | ATE496731T1 (de) |
| DE (2) | DE102005057115A1 (de) |
| DK (1) | DK1954444T3 (de) |
| WO (1) | WO2007059819A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3254807A1 (de) | 2016-06-07 | 2017-12-13 | desisa GmbH | Vorrichtung und verfahren zum reinigen mit einer strahlvorrichtung |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006015805A1 (de) * | 2006-04-03 | 2007-10-04 | Alfred Kärcher Gmbh & Co. Kg | Strahlmittelaustragsdüse |
| SK288682B6 (sk) | 2015-08-29 | 2019-07-02 | Ics Ice Cleaning Systems S. R. O. | Zásobník suchého ľadu pre zariadenia na čistenie suchým ľadom |
| DE102019202220A1 (de) * | 2019-02-19 | 2020-08-20 | Robel Bahnbaumaschinen Gmbh | Vorrichtung und Verfahren zum manuellen Behandeln einer Oberfläche mit Trockeneis |
| WO2024123856A1 (en) * | 2022-12-07 | 2024-06-13 | Nu-Ice Age, Inc. | Heated handle and hose for dry ice blasting system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB586291A (en) * | 1944-08-18 | 1947-03-13 | Cardox Corp | Fire extinguishing system |
| DE1931603U (de) * | 1965-10-23 | 1966-01-27 | Cloos Fa Carl | Vorrichtung fuer eine elektrische schweissanlage mit einer ueber eine hohlleitung mit elektrodendraht zu beschickender schweisspistole. |
| US5071289A (en) * | 1989-12-27 | 1991-12-10 | Alpheus Cleaning Technologies Corp. | Particulate delivery system |
| FR2678527B1 (fr) * | 1991-07-05 | 1993-09-10 | Commissariat Energie Atomique | Appareil de stockage et de projection de billes de glace. |
| DE19624652A1 (de) * | 1995-10-30 | 1997-10-16 | Birgit Papcke | Verfahren zur Oberflächenbehandlung, insbesondere Reinigung von Oberflächen mit CO¶2¶-Trockeneisgranulat und eine Vorrichtung zur Durchführung dieses Verfahrens |
| DE19654779A1 (de) * | 1996-12-31 | 1998-07-02 | Josef Bauer | Strahlpistole für die Naßstrahlung |
| DE29709057U1 (de) * | 1997-05-23 | 1997-07-24 | Thieme, Martin, 48346 Ostbevern | Fahrbare Sandstrahlanlage |
| WO2006000274A1 (de) * | 2004-06-24 | 2006-01-05 | Jens Werner Kipp | Vorrichtung und verfahren zur zuführung von flüssigem kohlendioxid |
| DE102004045770B3 (de) * | 2004-09-15 | 2005-09-08 | Alfred Kärcher Gmbh & Co. Kg | Trockeneisstrahlvorrichtung |
-
2005
- 2005-11-28 DE DE102005057115A patent/DE102005057115A1/de not_active Withdrawn
-
2006
- 2006-09-27 AT AT06805886T patent/ATE496731T1/de active
- 2006-09-27 EP EP06805886A patent/EP1954444B1/de not_active Not-in-force
- 2006-09-27 WO PCT/EP2006/009362 patent/WO2007059819A1/de not_active Ceased
- 2006-09-27 DE DE502006008828T patent/DE502006008828D1/de active Active
- 2006-09-27 DK DK06805886.6T patent/DK1954444T3/da active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007059819A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3254807A1 (de) | 2016-06-07 | 2017-12-13 | desisa GmbH | Vorrichtung und verfahren zum reinigen mit einer strahlvorrichtung |
| EP4316734A2 (de) | 2016-06-07 | 2024-02-07 | desisa GmbH | Vorrichtung und verfahren zum reinigen mit einer strahlvorrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502006008828D1 (de) | 2011-03-10 |
| WO2007059819A1 (de) | 2007-05-31 |
| EP1954444B1 (de) | 2011-01-26 |
| ATE496731T1 (de) | 2011-02-15 |
| DK1954444T3 (da) | 2011-05-09 |
| DE102005057115A1 (de) | 2007-05-31 |
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