For better clearness and understanding of the present invention purpose, the same one has been illustrated on several figures, on which the invention has been shown as per the preferred implementation way, everything as an example, where:
Referring, at this time, to Figures, we see that the invention encompasses an autonomous equipment for the paint application, as indicated with the general reference number 1, and it can be connected, by means of a hose 2, to a paint applicator, as generically indicated on
The invention equipment encompasses a tank 5, which is preferably made of a light material such as plastic, aluminum or other similar ones in a way to form a closed containing chamber for liquids, of portable weight and size, which, as per our preferred implementation, it is provided with a transportation handle 6. The tank is designed with a first chamber 7 for keeping the paint and a second closed chamber 8 that has the purpose of storing the equipment components as it will be seen henceforward. In order to allow the paint filling into the tank 1 and more specifically into the chamber 7, the tank shows a charging throat 9 that is provided with a cap 10 and a removable filter 11.
Into the closed chamber 8, a paint suctioning/propelling bomb 12 is provided, preferably a peristaltic bomb that, as it can be seen on
A second impulse motor is connected to a palettes mixer 23 that can be started in order to mix the paint in a manual way, whenever it is wanted, or in an automatic way. Both the motor 22 and the motor 21 can be direct current, propelling/impulse, low tension motors. An energy source, such as a battery 24, preferably of 12 or 24 Volts and being rechargeable, is connected to both motors for their feeding. Additionally, these motors, together with the battery, are connected to a control circuit that preferably encompasses a control electronic circuit board 25 placed into the aforementioned second closed chamber 8 of the internal tank compartment, together with the other components, that is, the bomb 12, the motors 21 and 22 and the battery 24. The chamber 8 is crowned by an operation panel 26 and a cap 27 that makes the panel 26 accessible to the operator. The operation panel 26 is connected to the said electronic circuit board 25 and it can be formed by a hermetic keyboard with soft touch driving keys.
In accordance with an alternate implementation, one or all of the keyboard commands 26, can be directly provided at a point of the feeding hose or at a point of the paint applicator handle, either at the pistol handle 3 as it is indicated with the reference number 28, or at the roller handle 4 as it is indicated with the reference 29 on
More specifically, if it is wanted to utilize the roller at a significant height, an extension tube can be used, being formed by a plastic or aluminum tube that can be coupled to the paint feeding hose or, just in case, by a similar tube, but being longer, that operates as an extension and it makes possible more reach regarding height. A tube of less diameter is placed in the interior of the tube and the extensions, through which the paint flows, avoiding that the whole cavity is filled with paint, having the inefficiency of making useless a higher paint quantity, longer priming time and more weight of the resulting spear. The internal tube is separated from the external tube by separators such as rubber rings.
Regarding the pulser or the controls, that are placed at the hose or at the handle, the same ones can be useful for the driving of various types of equipment remote operation. For example, the pulser allows to drive the equipment motor as per intervals long enough in order to provide the paint doses that are needed as long as the work requires it. The pulser will be connected to the motor by means of a control plaque and the link can be wired or wireless.
As a way of another example, the motor 21 and the bomb can work in a direct operation mode, where the paint is fed to the applicator, and they can run in a reverse operation mode, where the paint is recovered from the applicator. In other words, in the direct mode, the rotation of the motor and the bomb sends paint from the tank towards the hose and from this one to the roller or the pistol that is coupled at the other side. In the reverse mode, the rotation of the motor and the bomb is reversed in a way to recover the paint towards the tank as a previous step to the cleaning of the elements after having finished the job. This last mode is particularly useful when an extension tube or a feeding hose has been utilized and it is necessary to recover all of the paint that has remained at that part of the tube or the hose. In order to complement the operation of those two modes, the keyboard 26 or the controls 28 or 29 are provided with a driver of the direct mode for a first time period and a direct mode activator pulser in a second moment, where the first moment corresponds to the equipment priming and the second time period has to do with the paint supply. The aforementioned driver can be a retention key or it can encompass a pulser with pre-adjustable timing function. The pulser can cover a continuing pressure pulser or a pulser with pre-adjustable timing function.
In addition, two time periods are recognized in the direct mode. In the first time period, that is when the job must be started, it is required to perform the priming of the whole equipment (admission tube, bomb, hose, handle, extension and roller or, if not, pistol recipient). This task requires some time that is dependent upon the paint viscosity and the hose length; in order to perform it, there is a retention key or, if not, a priming pulser 33 with pre-adjustable timing function for a time lapse t1. In a second time period, when the equipment is already primed, and from the start to the end of the job, uniform paint doses are required, being provided to cover what the application device is consuming. For that purpose, there is another dose applicator pulser 34 at the control panel, that operates in a parallel way with the one that is placed at the handle of the application device (roller or pistol), being that the said pulsers can operate either by sustainable continuing pressure during the period that is wanted or, if not, with pre-adjustable temporization function for a t2 time lapse, being shorter than the priming function. In this way, it is reduced: the time needed for painting and the time to clean the equipment as soon as the job is finished. On the other hand, as spillage is not produced, the time for floor masking is saved or, if not, for cleaning.
As an additional feature, the equipment is provided with warning alarm for the operator. In fact, the control circuit, or electronic circuit board 25 shows a first alarm corresponding to a first charge status of the said battery and a second alarm corresponding to a second battery charge status, where the aforementioned first charge status corresponds to a remaining charge for a day's work of operation, while the said second charge status corresponds to an incoming battery depletion. More specifically, the control board provides the start up and stopping function of the motor, what allows to control the battery charge status and it warns, in a sonorous way, about the need of its recharge by means of a buzzer 47, and in a luminous way through a light emitter diode 38 in two different moments and modes. The diode 38 is preferably of the type that can emit three colors of light, yellow, red and green. In a first moment, through a sonorous signal for a predefined time lapse, it warns about that the battery will have to be recharged by the end of the day's work; in our preferred example, the time duration can be 20 seconds, in addition this acoustic signal is accompanied by an intermittent, luminous signal, of red color, at the light emitter diode 38. In the second moment, the sonorous signal warns that the recharge is peremptory by using a more insistent sound at the buzzer 47, being accompanied by a continuing luminous signal, of red color, at the light emitter diode 38, blocking the running of the motor in order to avoid that the battery depletion becomes more serious and it shortens the useful life of the same one; this alarm can be stopped by utilizing the Connect/Disconnect key 30 or, if not, by connecting the external source for battery recharge.
For its part, the battery 24 can be connected, with removal possibility, to a source-charger that, at its turn, it is connected to an alternating current feeding line, for example of 110 V. or 220 V. At the time of connecting the said source charger, the battery is being charged while the equipment running is enabled, which, at that time, is fed directly by the source.
During the battery charging, the luminous indicator 38 turns on in intermittent mode of yellow color, confirming the battery charge status 24, and it turns its color to green as soon as the battery has completed its charge.
For all of these functions, as described above, the electronic circuit board 25 and the operation panel 26, as it is shown on
In addition, the electronic circuit board is provided with a multiple connector that drives the bomb motor 21 and the mixer motor 22 and, at the same time, it receives information from a pressure sensor 48 and a crack detecting sensor 49 that is in charge of verifying the status of the bomb elastic tube 15.
In addition, an internal clock is available 45, being in charge of providing the time reference and a memory 46, EPROM type, where the circuit running logic is stored. The microprocessor 39 is linked, through the keyboard connector 42, to the operation panel 26 or to the same aforementioned keyboard.
For its part, the keyboard 26 has a series of applicators that are described as follows; a pulser 30 for connecting/disconnecting, a direct mode pulser 31 for paint supply towards the applying ends, and a reverse pulser 32 that recovers the paint as contained into the application hose.
The equipment running status can be determined through a luminous indicator for the direct mode 36 and a reverse mode luminous indicator 37.
The priming pulser 33 allows to set up the equipment, as per a preprogrammed mode, before commencing the work cycle that is started with the dose pulser 34.
The paint mixer is started through the pulser 35.
Being linked to the low battery indicator system and the blocked system waiting for recharging, it has been provided, for such purpose, the luminous indicator 38, with the characteristic of allowing to change its color in up to three different modes according to the needs.
Number | Date | Country | Kind |
---|---|---|---|
P20060101939 | May 2006 | AR | national |