DE202015008924U1 - Apparatus for applying viscous materials - Google Patents

Abstract

Apparatus for applying viscous materials, comprising a handle (12), an at least partially funnel-shaped container (14), a feed nozzle (16) and a vibration unit (18), wherein - the funnel-shaped container (14) at a first opening (28) the second opening is smaller in diameter than the first opening (28), and the vibration unit (18) is arranged in the connection area between the second opening and the supply nozzle (16) is, and - the vibration unit (18) has an imbalance which is rotatably mounted about an orthogonal to a central axis (M) of the second opening extending axis of rotation (D) and coupled to an electric motor.

Description

A device for applying viscous materials is described, which is designed as a hand-held device. The device serves e.g. to spend mortar or grouts, which are in a viscous, sometimes in a highly viscous state, for application to surfaces or in joints in a flowable state.

For this purpose, various devices are known from the prior art. All devices have in common that they have a device which pressurizes the material to be applied. Either in a reservoir for the material pressure is introduced or in a nozzle unit, via which the material is applied, a conveyor is arranged.

EP 1 340553 A2 discloses a device for applying high-viscosity materials, wherein a nozzle unit is mounted on a percussion drill. The nozzle unit has a section with a screw conveyor, which is driven by the percussion drill. In addition, there is a port through which a container can be applied to guide the material to the screw conveyor. To apply the material, the percussion drill is turned on and the auger moves. The rotation of the auger guides the material to a front nozzle orifice, with the vibration of the percussion drill assisting in compressing the material.

In the EP 1 340553 A2 described device has disadvantages in terms of usability and design. Thus, the device must always be held with both hands, since the percussion drill has a high weight and the vibration during operation of the percussion drill makes a one-handed use impossible. In addition, the device has a plurality of components.

It is therefore an object to provide a device for applying viscous materials that can be operated by a user with one hand, has a simple structure and is inexpensive.

The object is achieved by a device having the features specified in claim 1. Advantageous developments are specified in the dependent claims in detail.

• – der trichterförmige Behälter an einer ersten Öffnung offen und an einer zweiten Öffnung mit dem Zuführstutzen verbunden ist,
• – die zweite Öffnung einen kleineren Durchmesser aufweist als die erste Öffnung,
• – die Vibrationseinheit im Verbindungsbereich zwischen der zweiten Öffnung und dem Zuführstutzen angeordnet ist, und
• – die Vibrationseinheit eine Unwucht aufweist, die um eine orthogonal zu einer Mittelachse der zweiten Öffnung verlaufende Drehachse drehbar gelagert und mit einem Elektromotor gekoppelt ist.

An apparatus for applying viscous materials, which achieves the above object, comprises a handle, an at least partially funnel-shaped container, a feed nozzle and a vibration unit, wherein

• The funnel-shaped container is open at a first opening and connected to the feed nozzle at a second opening,
• The second opening has a smaller diameter than the first opening,
• - The vibration unit is arranged in the connecting region between the second opening and the feed nozzle, and
• - The vibration unit has an imbalance which is rotatably mounted about an orthogonal to a central axis of the second opening extending axis of rotation and coupled to an electric motor.

The device has a simple structure over known devices. In particular, it is possible to dispense with a device for generating pressure. The liquefaction of viscous or highly viscous materials, which are received in the container, by means of the vibration unit. After the vibration unit has been put into operation, the material received in the container liquefies due to the thixotropic effect. As long as the vibration unit is in operation, the low-viscosity state of the material is maintained, and this flows out via the feed pipe and can be used, for example, for grouting clinker bricks, wall cladding and wall tiles. After exiting the feed pipe, the material is no longer subject to vibration and solidifies again or changes to the original viscous or highly viscous state. Likewise, the material in the container and in the supply nozzle changes to the viscous or highly viscous state when the vibration unit is no longer in operation. The device may then be deposited by a user, for example, wherein the material received in the container does not tend to flow out of the container, as this has again taken the viscous or highly viscous state. However, in order to prevent falling out of the viscous or highly viscous material received in the container, the container can be closed with a lid. The at least partially funnel-shaped design of the container ensures that during the liquefaction of the material, this flows to the feed nozzle. In particular, the container is funnel-shaped in the lower region, the connection region between the second opening and the feed connection. In the section facing the first end, the container may also have other shapes. In particular, the container may have both a round and a polygonal cross-section.

The handle may comprise an actuator which is adapted to put the vibration unit into operation. About the actuator, the vibration unit is activated and deactivated. For example. causes the actuator a switching on and off of an electric motor of the vibration unit.

The supply nozzle may be formed by a hose. A hose is usually flexible or deformable at least to a certain extent, so that the user holds the device when grouting or applying mortar with one hand and operated and can run with the other hand designed as a hose feed pipe. The user can also put new mortar or a new grout in the container with the other hand.

In particular, the device may be designed for applying mortar, cement or grout. For this purpose, the materials of the container and of the hose or of the feed nozzle consist of a material which prevents or at least impedes adhesion of the grout, of the cement or of the mortar. The handle and the container and other parts of the device may be made of a metal and / or plastic. Precious metals may also be used for the components of the device. Metals and especially precious metals are easy to clean. Plastics have a low weight and can easily be shaped. Plastic handles as handles for the device are therefore inexpensive to manufacture. There are also plastics that are easy to clean.

The device may further comprise an adapter, which is connectable to the feed nozzle at one of the second opening of the funnel-shaped container end facing away from the supply nozzle. The adapter can serve to reduce the cross-section of the outlet opening for the material. If the feed nozzle has a certain inner diameter over which the material is applied, then the adapter can correspondingly reduce this cross section. An adapter is particularly suitable for small joints and for materials which either become heavily liquefied by the influence of vibration or are taken up in the container in a generally low-viscosity state.

The handle may further include a connection to a power supply unit. A connection can be formed either by a contact interface to the power supply or by an electrical line which is connected via a so-called power plug to a power outlet. Furthermore, an accumulator unit may be provided on the handle for supplying power to the electric motor for the vibration unit.

The electric motor can be designed to set the unbalance in rotation with a rotation of 4000 to 6000 revolutions per minute. Furthermore, the actuating element can be designed so that the rotation of the imbalance is variable depending on the operation thereof. Alternatively or additionally, the rotational speed of the electric motor via a further control device on the handle to be adjustable.

The imbalance may have a mass of 10 to 20 grams, in particular 15 grams. In particular, a relatively low mass at a high rotational speed enables good liquefaction of the material, liquefaction being uniform for the material supplied in the container and in the supply nozzle.

The inner diameter of the feed nozzle may be in the range between 20 and 25 mm. The inside diameter of the supply nozzle should also be chosen with regard to the materials to be used. In particular, the feed pipe is also to be selected with regard to the joint width of the bodies to be grouted. In an alternative embodiment, instead of or in addition to an adapter, the feed nozzle can be exchangeably connected to the container and the vibration unit, so that different feed nozzles can be connected to the apparatus for different materials and different joint widths. Also, the feed can be extended via an adapter or it can be a longer or shorter feed pipe connected to the device.

The diameter of the second opening may be in the range between 20 and 30 mm and the diameter of the first opening is at least 180 mm. The diameter of the second opening substantially corresponds to the inner diameter of the feed nozzle or a connecting part which connects the container with the feed nozzle. The diameter of the first opening should be chosen so that the filling of viscous or highly viscous materials is easily possible.

The handle may be connected to a decoupling element. During the operation of the vibration unit, the decoupling element serves to decouple the handle from the vibration unit. The decoupling element prevents vibration of the handle. For this purpose, the decoupling element can be connected to a connecting element. The connection element has a connection for the container and a connection for the supply connection. Through these two connections, the material is guided from the container to the supply nozzle. The connecting element may have an additional connection for the handle or is connected via the decoupling element with the handle. The decoupling element may consist of an elastic material and be formed rubber-like. The Decoupling element may be arranged as a "rubber" -like connecting part between the connecting element and the handle. Alternatively, the decoupling element can be arranged between the handle and the vibration unit, wherein the vibration unit is connected or coupled with the container and the feed connection. The decoupling element, which serves as a damping means, causes at least a reduction of the vibrations in the handle when the vibration unit is in operation. This facilitates the use.

Further advantages, features and design options will become apparent from the following description of the figures of non-limiting embodiments to be understood.

1 shows a perspective view of a device 10 for applying viscous materials.

Viscous and highly viscous materials are, for example, joint compounds or mortar.

The device 10 has a handle 12 , a container 14 , a feeder 16 and a vibration unit 18 on.

The handle 12 has an actuator 24 on, for commissioning a in 1 Electric motor, not shown, is used. The electric motor is in the vibration unit 18 added. The electric motor sets an imbalance mounted on a shaft into rotation. The axis of rotation D in this case runs perpendicular to a central axis M, which extends substantially centrally through a first opening and a second opening 28 of the container 14 extends.

The container 14 has a substantially polygonal cross-section with rounded corners. In a lower area, the container 14 a funnel-shaped section 26 on. The funnel-shaped section 26 Make sure you're in a recording room 32 of the container 14 recorded material in drawing direction down to the feed 16 flows. The vibration unit 18 is in the connection area between the funnel-shaped section 26 with the second opening and the supply nozzle 16 arranged. In this connection region, a connecting element can be arranged. The connecting element is with the vibration unit 18 coupled and has connections for the second opening of the container 14 and the feed pipe 16 on. To the container 14 and the feed pipe 16 To fix with the connecting element, pipe clamps or other means can be used. This allows detachment and replacement of both the container 14 as well as the supply nozzle 16 , An exchange of the container 14 or the supply pipe 16 may be either due to wear required or provided for replacement due to various recorded materials. Furthermore, it is possible to have a larger container 14 to provide a larger receiving space 32 having. Also, a longer or shorter feed pipe 16 or a feed nozzle 16 with a larger inner diameter or a smaller inner diameter with the device 10 get connected.

To a lower end 30 of the supply pipe 16 can be an adapter 22 be put on. The adapter 22 has a connection section 34 on, over which the connection with the supply pipe 16 at the bottom 30 he follows. In the connecting section 34 Sealant and / or clamping elements can be provided, which accomplish a secure attachment. The adapter 22 has a nozzle at a front end 36 on. The nozzle 36 reduces the diameter of the outlet opening for the material relative to the outlet opening in the lower end 30 of the supply pipe 16 , The adapter 22 can, for example, be placed if that in the container 14 absorbed material is liquefied more - due to a lower viscous ground state or due to a stronger vibration - or if thinner joints are to be filled.

The handle 12 has at its lower end a connection for an electrical line 20 on. About the electrical line 20 the power supply of the electric motor takes place. The actuator 24 puts in the in 1 shown embodiment of the device 10 the power supply via the electrical line 20 to the electric motor ago. Will the actuator 24 pressed, the electric motor is energized and causes the unbalance to rotate at an adjustable speed about the axis of rotation D. The line 20 has a power plug at an end, not shown. About the power plug is the device 10 energized.

In further embodiments not shown is on the handle 12 an accumulator unit for power supply provided. In addition, variants are provided in which conventional disposable batteries in a battery compartment of the handle 12 can be used. In a rechargeable embodiment of the device 10 can the feed pipe 16 and the container 14 removed and the handle 12 be placed on a charging station. Alternatively, the line 20 for charging a battery or a rechargeable battery in the handle 12 provided and detachable with the handle 12 be connected.

For applying viscous or highly viscous materials, a user may use the device 10 over the handle 12 and manually hold the container 14 with a viscous or high viscosity Fill material. Subsequently, the user actuates the actuator 24 , whereby the electric motor of the vibration unit 18 is put into operation. Here, the imbalance mounted on the axis of rotation D is set in rotation and causes a vibration. The vibration is transferred to the container 14 on the material received therein, which goes into a low-viscosity state and liquefies. The material flows over the feed pipe 16 down to its end 30 and comes out of the end 30 out. The feed pipe 16 is made of such a material that this due to the vibration by the vibration unit 18 also experiences a vibration, so that via the feed pipe 16 supplied material remains in the liquefied state. The user can then use the device 10 so move to a gap to be filled, that over the feed tube 16 supplied material flows into the joints. After the exit of the material from the lower end 30 of the supply pipe 16 the material changes into its viscous or viscous state and solidifies. After a user has filled the joints with the viscous or highly viscous material, he leaves the actuator 24 go, so that this interrupts the contact from a power source to the electric motor. Then it goes in the container 14 and in the feed tube 16 absorbed material in the viscous or highly viscous state. The user can then within a short time (a few seconds) the device 10 remove from the joint to be filled without causing the material to drip out of the lower end 30 of the supply pipe 16 comes.

The imbalance of the vibration unit 18 may have a weight of 10 to 20 g, in particular 15 g. In addition, the electric motor causes one revolution of the unbalance during operation in the range 4000 to 6000 revolutions per minute.

Preferred inner diameters for the feed nozzle are in the range of 20 to 25 mm. Furthermore, the container has 14 a capacity of preferably at least 2 liters.

LIST OF REFERENCE NUMBERS

10

 contraption

12

 handle

14

 container

16

 supply pipe

18

 vibration unit

20

 management

22

 adapter

24

 actuator

26

 funnel-shaped section

28

 first opening

30

 The End

32

 accommodation space

34

 connecting portion

36

 jet

M

 central axis

D

 axis of rotation

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1340553 A2 [0003, 0004]

Claims (10)

Device for applying viscous materials, comprising a handle ( 12 ), an at least partially funnel-shaped container ( 14 ), a feeder ( 16 ) and a vibration unit ( 18 ), wherein - the funnel-shaped container ( 14 ) at a first opening ( 28 ) open and at a second opening with the feed ( 16 ), - the second opening has a smaller diameter than the first opening ( 28 ), - the vibration unit ( 18 ) in the connection area between the second opening and the feed nozzle ( 16 ), and - the vibration unit ( 18 ) has an imbalance which is rotatably mounted about an axis of rotation (D) orthogonal to a central axis (M) of the second opening and coupled to an electric motor. Device according to claim 1, wherein the handle ( 12 ) an actuating element ( 24 ), which is adapted to the vibration unit ( 18 ) to put into operation. Apparatus according to claim 1 or 2, wherein the supply nozzle ( 16 ) is formed by a hose. Device according to one of claims 1 to 3, wherein the device ( 10 ) is designed for applying mortar or grout. Device according to one of claims 1 to 4, comprising an adapter ( 22 ), which at one of the second opening of the funnel-shaped container ( 14 ) facing away from the end of the supply ( 16 ) with the feed neck ( 16 ) is connectable. Device according to one of claims 1 to 5, wherein the handle ( 12 ) has a connection to a power supply unit. Device according to one of claims 1 to 6, wherein the electric motor is adapted to set the unbalance in rotation with a rotation of 4000 to 6000 1 / min. Device according to one of claims 1 to 7, wherein the imbalance has a mass of 10 to 20 g. Device according to one of claims 1 to 8, wherein - the inner diameter of the feed nozzle ( 16 ) is in the range between 20 and 25 mm, and / or - the diameter of the second opening is in the range between 20 and 30 mm and the diameter of the first opening ( 28 ) is at least 180 mm. Device according to one of claims 1 to 9, wherein the handle ( 12 ) is connected to a decoupling element.

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