EP0738668B1 - Aerosol actuator with hand-grip - Google Patents

Abstract

The aerosol operating device includes a handgrip (1) which has a coupling device (3) in its end (2) for the container (13), and a hand-operated trigger (5) in its endface (4), acting with a valve device on the container. There is a recess in the end of the handgrip, in the vicinity of the coupling device, extending into the endface of the handgrip. The part of the recess extending into the endface of the handgrip serves as a receiver for the trigger. The recess may extend over the end zone including the coupling device and into the handgrip, which has a bulge (9) below the coupling device.

Description

The invention relates to a device for dispensing in containers under pressure stored flowable masses, according to the preamble of claim 1.

In construction and sanitary areas, it is often necessary to use joints and the like To close sealing compounds. Usually, polyurethane foams (PU foams) used, which are stored in cans under pressure. The application of a PU foam takes place through a discharge valve attached to the can. The valve can for example by finger pressure on one placed on the valve stem Press button. To apply the PU foams from the pressure vessels for To make it easier for the user, devices have been created in which the Operation of the trigger which can be placed on the valve stem takes place. In a Further development of this principle, devices have been created that should be reusable. Such a known device has one tubular handle on one end with one External thread is equipped. There is a clamping nut on the external thread screwed on, which serves as a coupling device for a pressure cell. In the front of the handle, a slot-like recess is provided which has a trigger records. The recess is down to a small one thanks to the trigger lever used The opening in the area above the swivel axis of the trigger is closed. The The upper edge of the recess lies below the end of the clamping nut Handle, which is provided with a through hole that with the small Opening in the front of the handle communicates.

Before using the device, the user must put the pressure vessel on Put on the coupling device provided end of the handle and with the Fix the clamping nut. The valve stem of the discharge valve on the pressure vessel protrudes into the through hole in the handle. Then an elbow must go through the small one Opening in the front of the handle to be threaded and with one end on the valve stem are put on. At the other end of the contra-angle is a flexible hose attached, which makes it possible even in hard-to-reach places foaming. In the known device, it may be necessary Dismantle the trigger to thread the contra-angle handpiece and onto the valve stem to be able to put on. Then the trigger must be reassembled. After this you pressure vessel is connected to the handle and the elbow is threaded and is placed on the valve stem, the pressure vessel is shaken, and can PU foam can be applied. To do this, pull the trigger that is on the Elbow presses and in this way that provided on the pressure vessel Discharge valve actuated.

The device is decommissioned in the reverse order. To the elbow is removed from the valve stem protruding from the pressure vessel and must be threaded through the small opening in the front of the handle. It may also be necessary to remove the trigger beforehand. Only after The handle and the pressure vessel can be removed again be separated from each other. The contra-angle is after using the device filled with PU foam. When unthreading the contra-angle, it can therefore happen that the trigger and the handle inside and outside with PU foam is contaminated. Above all, there is a risk that the user's hands with the PU foam come into contact. In case of contamination with the PU foam must this should be removed as soon as possible before it hardens. Impurities on the handle, those that are not removed can make the device reusable impair or even make impossible.

From DE-U-86 11 458 a device for dispensing in Containers stored masses known, which comprises a handle that on one end is equipped with a coupling device for the container and has a recess that continues in the front of the handle. One at the Trigger lever arranged on the front side of the handle acts on a valve device Containers together to discharge the content. During this move certain Having advantages in terms of accessibility to the container valve supports its long and slim design with the tendency of the assembled device vertically protruding container to tilt during operation. Because of the constructive Interpretation of this known handle, the wrist must bear the full weight of the Handle with the attached container to prevent the tilting of the Device to face to the side or to the front or back and a trouble-free To enable work. As a result, the hand-arm system tires very quickly, and one Continuous use, as is often required in professional applications, is strong impaired.

Another disadvantage of this known device is the relatively cumbersome Fixing the pressure vessel on the docking device. After fastening several times and releasing the clamping nut on the docking device can the pressure vessel can no longer be properly fixed. This can lead to a loss of the pressure vessel during use the device.

The object of the present invention is therefore a device of Generic type to improve in that the above disadvantages are eliminated. It is intended to be a device for dispensing under pressure in containers stored flowable masses are created that are comfortable in the Application is. The pressure vessel should be quick and easy on the device be attachable or detachable again. The device is also said to repeated mounting and releasing the pressure container a secure fixation of the Ensure pressure vessel. It should be suitable for professional applications and when using premature hand-arm system fatigue counteract.

The solution to these problems consists in a device for applying in Flowable masses stored under pressure, which have a handle includes the has a circumferential bead below the coupling device, which starting from the recess in the front of the handle at an angle of extends approximately 90 ° to the rear area of the handle. The supernatant of the Circumferential bead opposite the contour of the handle takes along it Extension to the rear area essentially continuously and reaches on rear area a maximum. The peripheral bead has a supporting function when using the device. The handle is removed from the thumb and the rest Fingers. The peripheral bead is supported between the thumb and the Forefinger area of the back of the hand. This way the weight of the handle and the attached pressure vessel better on the hand-arm system distributed. The inclination of the handle with which in the operating position of the device approximately to tilt the vertically upward placed pressure vessel laterally thereby significantly reduced. The wrist doesn't have to be this strong anymore Counteract the tendency to tip over and tire less quickly.

It is advantageous from a manufacturing point of view if it is located in the front of the handle Continuing part of the recess is designed as a receptacle for the trigger lever. In this way, the molds for the manufacture of the handle can be relative just be trained.

In order to make the handle as light as possible, it is advantageous if the Recess over the end region of the coupling device Handle extends and continues in the handle. Because of this hollow training weight can be saved with the handle. At the same time, the Material consumption for the manufacture of the handle reduced. Through the hollow Design of the handle can also be the trigger in the front Be arranged that it is to a large extent within the Handle is located. For the actuation of the discharge valve on the pressure vessel are only relatively small swivels of the trigger required. Due to the relatively close Arrangement of the part of the lever operated by the user on the handle can Operation of the trigger in a finger position, in a very precise Pressure dosing is possible.

In an advantageous embodiment of the invention, the coupling device is on Handle for the, container designed as a quick release, the corresponding trained docking agents on the container interacts. Because of that, it is no longer required, the pressure vessel in a cumbersome way using a clamping nut fix. In the case of a bayonet lock, a snap lock or the container can be connected to the handle with minimal manipulations be removed from the handle if necessary. Instead of one Bayonet lock can also be a slide lock or a Steep threads can be provided, which closures with appropriately trained Interact with counterparts on the container.

Fig. 1

eine Stirnansicht eines ersten Ausführungsbeispieles der Erfindung mit angedocktem Behälter;

Fig. 2

eine Seitenansicht des Ausführungsbeispieles der Erfindung gemäss Fig. 1;

Fig. 3

eine Stirnansicht eines zweiten Ausführungsbeispieles der Erfindung;

Fig. 4

eine Schnittdarstellung des zweiten Ausführungsbeispieles der Erfindung gemäss Schnittlinie IV-IV In Fig.3; und

Fig. 5

eine Aufsicht des zweiten Ausführungsbeispieles der Erfindung.

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the drawings, in which:

Fig. 1

an end view of a first embodiment of the invention with docked container;

Fig. 2

a side view of the embodiment of the invention shown in FIG. 1;

Fig. 3

an end view of a second embodiment of the invention;

Fig. 4

a sectional view of the second embodiment of the invention according to section line IV-IV in Figure 3; and

Fig. 5

a plan of the second embodiment of the invention.

The embodiment shown in FIGS. 1 and 2 of the inventive Device comprises a handle 1, which at one end 2 with a Coupling device 3 is equipped for a container 13 in which a flowable mass to be applied is kept under pressure. The device is each shown in the operating position in which the container 13 with its discharge valve is docked upside down on the coupling device 3. The Coupling device 3 is in the illustrated embodiment as a snap lock formed in a three-point bearing two stops 31 and a resilient Pawl 32 includes. The stops 31 and the pawl 32 cooperate appropriately designed docking means 14 at the head end of the container 13 together. For example, the docking means are designed as a circumferential collar, the hooked on the stops 31 and in the attached state by the pawl 32 is held down. By pressing the pawl 32, the locking of the Container 13 releasable.

At the coupling device 3 having the end 2 of the handle 1 is one Recess 7 is provided which continues into the front side 4 of the handle 1. in the 1 and 2, the recess 7 extends in the Front side 4 about half the length of the handle 1 and is as a receptacle 72 for a trigger 5 is formed, which is articulated on the handle 1. The trigger 5 does not extend over the entire longitudinal extent of the recess 7 in the Face 4 of the handle to the coupling device 3. Between the upper end the trigger 5 and the left and right stop 31 of the coupling device 3 remains a free space 71 which extends to the pawl 32, which is in the rear Area 8 of the handle 1 is articulated. The free space 72 of the recess 7 allows when mounting the container 13 on the handle 1, the unhindered passage of a Elbow 11, which on the valve stem of the head end of the container 13th arranged discharge valve is placed. At the elbow 11 is a flexible Hose 12 attached, which also allows applications in inaccessible places.

Below the coupling device 3 there is a peripheral bead 9 on the handle 1 formed, starting from the front side 4 of the handle 1 in about 90 ° rear area 8 of the handle 1 extends. His supernatant takes off opposite the contour of the handle 1 from the front side 4 to the rear region 8 essentially about continuously. The largest protrusion has the peripheral bead 9 at the rear area 8 of the handle. The peripheral bead 9 is during the Application of the device between the thumb and forefinger part of the back of the hand of the user and supports that with the container equipped device. A pin 10 protrudes from the front side 4 of the handle 1, whose diameter tapers towards its free end. In the case of a short one Interruption of the application process of the flowable in the container Mass, for example a PU foam, can be the free front end of the hose 12 are plugged onto the pin 10. As a result, the one located in the hose 12 Mass largely sealed airtight, allowing for shorter interruptions does not already harden in the hose 12.

The second embodiment of the invention shown in FIGS. 3-5 The device is slightly modified compared to the first embodiment. The Coupling device 3 at one end 2 of the handle 1 comprises two lateral ones Guides 33 and a spring-loaded pawl 32. This as a sliding lock trained coupling device 3 acts with appropriately trained docking means on the container, not shown, for the pressurized flowable mass together. For example, there are protrusions on the left and right of the head of the container Provided strips that can be inserted into the side guides 33. A the Cross bar connecting both side bars serves as a counterpart for the pawl 32. The inserted container is in its position by the spring-loaded locking latch fixed. By pressing the pawl 32 down, the lock can be released again. The Recess 7 extends between the two lateral guides 33 and is in the front side 4 of the handle is designed as a receptacle 72 for the trigger 5. The trigger 5 is articulated on a pivot axis 6 and for the most part arranged within the handle 1. An extension 51 on the trigger 5 serves as Stop and limits the forward movement of the trigger 5 from the handle 1st out. As can be seen from the sectional view in FIG. 4, the handle 1 is hollow formed and connected to the free space 71 of the recess 7. At the rear area 8 of the handle is a support bead 9 which is in use the device on the area of the thumb and forefinger The back of the hand of the user.

The design of the device in accordance with the invention permits simple assembly. The Elbow no longer has to be threaded through a small opening, can even before the docking of the pressure vessel on the handle on the Valve stem. The trigger must no longer be disassembled and be used again. Disassembly is also greatly simplified. Through the inventive design of the device, the handle of the Pressure vessels can be released without first removing the elbow from the valve stem must be deducted. The elbow placed on the valve stem can be velvet the attached flexible hose through the recess in the Docking device equipped end of the handle and the continuation of the Recess in the front side of the handle can be removed. This can cause it to no more dirt on the handle and the user is reliable before contact with the flowable mass, for example a PU foam, protected. The device is simple and inexpensive to manufacture. For example, the handle can consist of two half-shells, which are in the Injection molding processes can be produced and after assembly of the trigger be put together.

Claims (5)

1. Device for dispensing free-flowing materials stored under pressure in containers (13), comprising a handle (1) which at one end (2) is equipped with a coupling mechanism (3) for the container (13) and has a recess (7) which continues into the handle's end face (4), on which is disposed a trigger lever (5) adapted for manual actuation and which cooperates with a valve mechanism on the container (13), characterised in that beneath the coupling mechanism (3) the handle (1) features an area of peripheral thickening (9) which begins at the recess (7) in the end face (4) of the handle (1) and extends at an angle of approximately 90° to the region (8) at the back of the handle (1), and relative to the external contour of the handle (1) features a projecting area which increases substantially continuously as it extends towards the region (8) at the back, where it reaches its maximum.
2. Device according to claim 1, characterised in that the part of the recess (7) that continues into the end face (4) of the handle (1) is constructed as a locator (72) for the trigger lever (5).
3. Device according to claim 1 or 2, characterised in that the recess (7) extends over the end region (71) of the handle (1), which incorporates the coupling mechanism (3), and continues into the handle (7).
4. Device according to any of the preceding claims, characterised in that the coupling mechanism (3) for the container (13) is in the form of a rapid-action closure (31, 32, 33) which cooperates with correspondingly formed docking means (14) on the container (13).
5. Device according to claim 4, characterised in that the rapid-action closure is a bayonet closure, a snap-fit closure or the like.

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