WO2016206678A1

WO2016206678A1 - Jointing or pointing tool

Info

Publication number: WO2016206678A1
Application number: PCT/DE2016/100292
Authority: WO
Inventors: Matthias HERRNBOECK; Bernd Mueller
Original assignee: Herrnboeck Matthias; Bernd Mueller
Priority date: 2015-06-26
Filing date: 2016-06-27
Publication date: 2016-12-29
Also published as: EP3314072A1; DE112016002831A5; US20180193971A1; EP3314072B1

Abstract

The present invention discloses a device (100) for abrading or removing material from a joint or groove by means of at least one abrasive surface (30) provided on a rib (20) that is associated with a main body (10).

Description

F U G E N - O D E R I N E N C A T E R E

Technical area

The present invention relates to the technical field of removing or removing material from a joint or gutter, in particular the cleaning of a joint or gutter.

State of the art

Conventional joint or gutter scrapers are disclosed, for example, in the document DE 20 2015 000 759 U1.

However, such equipment, for example, as regards the width of the joint or groove to be machined, relatively inflexible; Also, the handling of such equipment - especially for inexperienced users and / or end users - quite uncomfortable. Presentation of the present invention: object, solution, advantages

In appreciation of the outlined prior art, the present invention has the object, a device according to the preamble of claim 1 such that the disadvantages and shortcomings set out above are avoided.

This object is achieved by a device having the features of claim 1. Advantageous embodiments and expedient developments of the present invention are characterized in the respective subclaims. According to the present invention, therefore, a tool for, in particular manual, joint or gutter cleaning means

- removal of cementitious joint or gutter material, mainly in joints between tiles, slabs, natural stone or mosaic, or

for the deep effective removal of joint or gutter material for re-grouting, in particular without chemical additives or cleaning agents,

made available.

In contrast to conventional joint or gutter scrapers obtained by the accurate guide in the joint or gutter, by the conical surface of the abraded surface and by the soft storage of the abrasive, especially on hard rubber backing, a stable and tactile leadership to a fine and uniform To ensure removal of joint or gutter material. According to a preferred embodiment of the present invention, the abrasive (surface or abrasive (upper) surface is glued to the respective web and / or thermally, in particular thermoplastic, fixed Alternatively, the back of the abrasive surface or grinding surface in the so-called

Hinterspritzverfahren during the manufacturing process of the webs are melted into the surface with the same, which saves the gluing technique. Likewise, in the ideal case, the ultrasonic wave method or ultrasonic welding can be used. In particular, about 10 cm to about 14 cm, for example about 1 1 cm or about 13 cm long, the work bar itself is a durable precision tool that is also useful in improving poorly executed joints.

Accordingly, the length of the abrasive surface, in particular about 10 cm to about 14 cm, for example, about 1 1 cm or about 13 cm, allows accurate fitting of the tool in the joint or

Gutter and favors stable hold in this.

The risk of slipping or breaking out of the joint or gutter is significantly reduced by the longitudinal extent of the web. Due to the length and the stable support of the web with its abrasive material also prevents too much material is removed and / or that material is removed non-uniformly with respect to the extension of the joint or gutter.

In this case, the surface of the tool, in particular the grinding surface, due to the scattering of the grain island distribution on the surface can not clog.

The main body or body of the tool or the tool may preferably in the form of foamed, harder or softer plastic, in particular of ethylene vinyl acetate (EVA) or polyethylene base (PE), optionally with (natural) cork content in the granules and / or optionally with color additives.

According to an advantageous development of the present invention, the base body or body can be produced by injection molding, that is, hollow in the interior and provided with a cover, for example, in the working direction.

In addition, the main body or body can be modified to the effect that it has at least one air chamber, which allows comfortable working and allows the contact pressure in every imaginable intensity. Regardless of or in connection herewith, the base body or body may have a circumferential, in particular double executed, depression with damping function. In an expedient development of the present invention, a sound-damping material, for example made of fleece, may be provided in the interior of the main body or body in order to allow a low-noise and hence more pleasant work.

The grippy body or body can - not primarily for design reasons - be kept slim or narrow in order to penetrate even in hard to reach areas. Due to the above-described damping of the subject of the application receives a modern design, as well as an excellent grip while guiding the tool at the same time.

Furthermore, a simple recording of webs with different heights, with different widths, with different shapes and / or with different abrasive assignments may be possible. As a result, depending on the requirements, a narrow or wide web with a simple click system, for example in the form of a plug-in closure, in a groove in the handle-like body (= body or body) are mounted.

In addition, by providing such exchangeable webs with variable heights, for example, two millimeters, three millimeters and four millimeters, it is possible to determine the working depth. The provision of such an exchange possibility for the abraded bridge acts in particular in conjunction with a damping, for example with one or two

Damping or buffering elements in the handle-like body, synergetic.

The abraded land can easily protrude at one end or both ends from the handle-like body to allow the operator to see if, and if so where, the land is in the joint being worked. Also allows such a one- or two-sided

Overhang of the web relative to the handle part an editing of hard to reach areas, for example of edge areas and / or corners.

With the abrasive flocked web can be used both dry and wet or wet, in the latter case, the removal is greater.

Regardless of or in connection herewith, the web can advantageously be made of plastic, in particular of ethylene-vinyl acetate (EVA), or of rubber, in particular of hard rubber. Regardless or in connection herewith, the abrasive surface can be suitably

- As a diamond dust-occupied surface of a substrate, for example, galvanized on nickel surfaces, or

- Ceramic splinter surface on fabric carrier material

be. The use of the hardest materials such as diamond or ceramics in various grits allows continuous and fast work and ensures a long service life, so that by using high-quality industrial diamond dust in the form of the present invention, a durable precision tool is provided.

In particular, the abrasive surface may be formed of nickel bonded circular fields galvanically deposited with variable grits, for example categorized grit 50 or categorized grit 60, of present diamond dust. The fields can run diagonally on the substrate, in particular on a fabric or on a plastic adhesive surface, in particular at a small distance from the respective next field.

In an alternative embodiment, however, the abrasive surface can also be diamond-flocked continuously and / or with different distances between the individual grinding modules.

In an alternative embodiment, the web can be provided instead of the abrasive surface in the manner of a grooved or grooved brush with brush material of harder or softer bristles, for example, a length of about two millimeters to about four millimeters.

Basically, depending on the depth, width and / or hardness of the joint or channel in a preferred embodiment of the present invention, different height and / or different width working ridges available, the grain size of the abrasive surface of the work ridge is variable.

The web, which can be formed at different heights, can be coated in thin strips of about two millimeters to about five millimeters wide, for example with long strips, either continuously coated or intermittently (depending on the requirement of the joint width according to an expedient development of the present invention). with the round fields: for example, about 0.5 mm distance to the next field).

The resulting narrow work surface is thus diamond coated or similar abrasive and either continuously coated or provided with discontinuous coated fields in order to remove the removed material between the individual fields can.

Alternatively or additionally, the subject of the application may also be followed by a small dust bag or dust catcher or vacuum cleaner in order to catch the dirt or dust accumulating during the removal of joint or gutter material.

Various options with regard to the width of the abrasive grinding work surface ensure a snug fit in the joint pattern. Manually guided, the entire joint width can be processed in one go. The effect is a quick and clean removal of the desired area and Joint depth.

The web on which the abrasive surface is applied, is preferably formed of elastic, slightly yielding material, so that the contact pressure on the surface to be machined can be selected individually and depending on the requirement:

On the one hand, this prevents uncontrolled removal of joint material; On the other hand, this reduces the risk that adjacent to the joint or gutter ceramic material, glazes, glass, natural stone surfaces or generally adjacent materials are affected.

The front end of the web and / or the rear end of the abraded web may be chamfered or angled, for example at 45 degrees, or bent, for example round, or curved: this prevents the abrasive surface from rapidly moving can be demolished; Consequently, the

Tool life increased. On the other hand, this technical measure improves the work in corners and at the end of the processed hard joint, for example in room corners or connections to silicone joints. The beveled edges can also be provided with abrasive surface. Such, in an expedient manner slightly conical design of the web on the body or body favors in addition the custom-fit application in the joint or gutter. In addition, one obtains in the side view when creating in the joint or gutter certainty that the tool at the beginning of each work exactly in the joint or gutter and / or there exactly superimposed.

Since the abrasive surface is sunk into the joint or gutter with gentle pressure in the front part of the tool with gentle pressure, the risk of sliding out of the joint or groove is reduced due to the resulting secure guidance. By this concern of the body or body on the surrounding material, for example on the surface of a tile or a natural stone, a lateral or lateral rolling of the

Tool in the joint or gutter prevented.

The body or body glides so shake-free through the joint or gutter and thus gives a clear sense of occupational safety. This supports, among other things, the significantly higher operating speed compared to other joint or gut cleaning methods and the cleaner result.

For areas such as mounted shower rods, diagonal corners or diagonally laid coverings, it may be possible not to be able to penetrate with the tool in the joints or joint corners or the end of the joint can not be reached. This can be another in the Scope of delivery enclosed device be provided:

This again very simple held hand device in the form of a pin in size about a pencil made of plastic or metal ends in a ball that sits in a ball bearing. At this ball bearing is a bridge made of hard plastic, fitted with abrasive surface as attached to the actual tool, in the same design, but without soft ground. This will get you into all kinds of difficult areas. It is possible here to make the bridge exchangeable on the ball bearing and to offer different abrasive strips. The pen can be purchased as an additional tool or attached to the actual device according to the present invention.

The present invention has a variety of uses and uses:

- Surface joint removal or cleaning to a depth of about five millimeters

-> possibility to re-tiling tile surfaces;

- If you choose a higher web and joint or gutter material can be scraped out to the depth required in each case to allow Nachfugarbeiten; here it is possible to supply a joint color card;

- Scrape separation and movement joints, vertical and horizontal;

- reworking unfinished joint or gutter work;

- removal of overhangs on joint or gutter material;

- leveling of joints or gutters;

- Cleaning mosaics or grooved tiles, for example step with milled groove, or the like;

- Scrape out adhesive residue.

The subject of the application may also be electrically operated, for example by mounting the abrasive (alternating) surface by means of the web on an oscillating or reciprocating means in the body or body.

Brief description of the drawings

As already discussed above, there are various possibilities for embodying and developing the teaching of the present invention in an advantageous manner. For this purpose, reference is made on the one hand to the claims subordinate to claim 1, on the other hand, further embodiments, features and advantages of the present invention will be explained below, inter alia, with reference to the four illustrated by Fig. 1A to Fig. 4C embodiments.

It shows:

Fig. 1A is a schematic front view of a first embodiment of a device according to the present invention; Fig. 1 B in schematic rear view, the device of Fig. 1 A;

Fig. 1 C in a schematic side view of the device of Fig. 1 A and Fig. 1 B;

FIG. 1D is a schematic perspective view of the device of FIGS. 1A to 1C; FIG.

Fig. 2A is a schematic front view of a second embodiment of a device according to the present invention;

Fig. 2B is a schematic rear view of the device of Fig. 2A;

Fig. 2C is a schematic side view of the device of Fig. 2A and Fig. 2B; FIG. 2D is a schematic perspective view from below of the device from FIGS. 2A to 2C; FIG.

FIG. 2E is a schematic perspective view from above of the device from FIGS. 2A to 2D; FIG.

3A is a schematic perspective view of a main body or body of a third embodiment of a device according to the present invention;

FIG. 3B is a schematic bottom view of the main body or body of FIG. 3A; FIG.

3C is a schematic perspective view of a web of the third embodiment of the device according to the present invention;

FIG. 3D is a schematic perspective view of a detail view of the working direction front portion of the web of FIG. 3C; FIG. FIG. 3E is a schematic side view of the web of FIG. 3C and FIG. 3D; FIG.

FIG. 3F is a schematic perspective view of the web of FIGS. 3C to 3E; FIG.

4A is a schematic side view of a web of a fourth embodiment of the device according to the present invention.

4B is a schematic front view of a main body or body of the fourth embodiment of the device according to the present invention; and Fig. 4C is a schematic side view of the fourth embodiment with the web of Fig. 4A and with the main body or body of Fig. 4B.

Identical or similar configurations, elements or features are provided with identical reference symbols in FIGS. 1A to 4C

Best way to carry out the present invention

To avoid superfluous repetition, the following explanations relate to the embodiments, features and advantages of the present invention - unless otherwise stated - on

the first exemplary embodiment of the present invention illustrated with reference to FIGS. 1A to 1D,

the second embodiment of the present invention illustrated with reference to FIGS. 2A to 2E,

the third embodiment of the present invention illustrated with reference to FIGS. 3A to 3F

Invention as well

the fourth embodiment of the present invention illustrated with reference to FIGS. 4A to 4C. The device 100 illustrated with reference to FIGS. 1A to 4C serves for removing or removing material from a joint or groove by means of an abrasive surface 30 which is provided on a web 20, of a basic body designed in the manner of a wedge or a three-dimensional trapezoid 10 is assigned. For damping purposes, the base body 10 according to the first embodiment (see.

Fig. 1A to Fig. 1 D) in its interior two air chambers 12. Alternatively, the main body 10 according to the second exemplary embodiment (cf., FIGS. 2A to 2E) has two circumferential recesses 14 on its outer side for damping purposes. The side facing away from the joint or groove side of the abrasive surface 30 may be in the surface of the

Web 20, for example by means of ultrasonic welding, be melted down. Alternatively, the side facing away from the joint or groove side of the abrasive surface 30 bonded to the web 20 and / or thermally, in particular thermoplastic, be attached. The abrasive surface 30 of the web 20 is formed as at least partially or at least partially with abrasive material, in particular with diamond dust and / or with ceramic chips, occupied carrier material, in particular tissue carrier tape, wherein the abrasive material island or field on the abrasive surface 30th may be arranged so that the removed or removed material between the individual islands or fields can be removed. The third exemplary embodiment according to FIGS. 3A to 3F has an exchangeable web 20. For this purpose, the substantially T-shaped web 20 is inserted into a groove-shaped, designed in the manner of a receiving shaft recess 16 of the base body 10, namely releasably secured with its remote from the abrasive surface 30 area in the recess 16 of the body 10.

As can be seen in particular from the detailed illustration in FIG. 3D, the side of the web 20, which is remote from the abrasive surface 30 and has an elastically mounted tongue, has a latching nose 22 at its front end in the working direction, which is inserted into the recess 16 State of the web 20 in a provided in the recess 16 transverse groove-shaped recess 18 (left in Fig. 3B) engages.

The web 20 can be released by pressing on a locking lug 22 adjacent corrugated area 24 at the front end of the web 20 in the working direction, namely pulled out of the recess 16, for example, to another or fresh or new web 20 in the

Insert receiving slot 16 and lock.

By means of the locking lug 22 can also be prevented that the web 20 is inserted upside down into the recess 16. To avoid such incorrect operation can also at least one of the correct insertion direction indicating mark, for example, at least one

Arrow, be provided on the web 20.

In order to better grasp the corrugated region 24, in the state of the web 20 inserted into the recess 16, this corrugated region 24 projects beyond the base body 10 at the front end of the web 20 in the working direction.

As a result, the third exemplary embodiment according to FIGS. 3A to 3F thus shows the possibility of exchanging or exchanging the web 20 assigned to the main body 10, which is achieved by the positive reception of the web 20 (see FIGS. 3C to 3F) in FIG essentially T-shaped recess (= receiving shaft 16) of the base body 10 (see Fig. 3A and Fig. 3B) is made possible.

In the fourth exemplary embodiment according to FIGS. 4A to 4C, the possibility of replacing the abrasive surface 30 on the web 20 by means of a clip-type click system 28 is illustrated.

List of reference numbers

100 device

10 body or body

12 air chamber deepening

Recess, in particular groove or receiving shaft

Recess, in particular transverse groove

web

locking lug

Area at the end of the bridge 20

Projection of the abrasive surface 30 facing portion of the web 20 at one of its two ends or at both ends relative to the main body or body 10th

Click system, in particular clip-type click system

abrasive surface

Claims

Device (100) for removing or removing material from a joint or groove by means of at least one abrasive surface (30) provided on a web (20) associated with a base body (10).

Apparatus according to claim 1, wherein the base body (10) is formed in the manner of a wedge or a three-dimensional trapezoid.

Device according to claim 1 or 2, wherein the main body (10), in particular for damping purposes,

in its interior at least one air chamber (12) and / or

on its outside at least one, in particular circumferential, recess (14)

having.

Device according to at least one of claims 1 to 3, wherein the remote from the joint or groove side of the abrasive surface (30) in the web (20), in particular in the surface of the web (20), is sealed, in particular by means of ultrasonic welding.

Device according to at least one of claims 1 to 3, wherein the remote from the joint or groove side of the abrasive surface (30) on the web (20) bonded and / or thermally, in particular thermoplastic, is attached.

Device according to at least one of claims 1 to 5, wherein the abrasive surface (30) as at least partially or at least partially with abrasive material, in particular with diamond dust and / or ceramic splinters, occupied carrier material, in particular tissue carrier tape is formed.

Apparatus according to claim 6, wherein the abrasive material is arranged on the abrasive surface (30) island or field-wise and the removed or removed material is transportable between the individual islands or fields.

Device according to at least one of claims 1 to 7, wherein the web (20) in a recess (16), in particular in a groove or in a receiving shaft, the base body (10) inserted and in the recess (16), in particular releasably fixed is.

Apparatus according to claim 8, wherein the web (20) is formed substantially T-shaped and with its from the abrasive surface (30) facing away from the area in the recess (16) is receivable in a form-fitting manner.

10. The device according to any one of claims 1 to 9, wherein the side facing away from the abrasive surface (30) of the web (20) at its one end, in particular in the working direction front end, at least one latching lug (22).

1 1. Apparatus according to claim 10, wherein the portion of the web (20) having the detent nose (22) is resiliently mounted with respect to the remainder of the web (20).

12. Device according to claims e or 9 and according to claim 10 or 1 1, wherein the latching lug (22)

in the inserted into the recess (16) state of the web (20) in a recess (16) provided in the recess (18), in particular transverse groove, can be latched and by pressing on a, in particular corrugated, area (24) at the end of the web (20) again from the recess (18) is releasable, so that the web (20) is again pulled out of the recess (16).

13. The device according to claim 12, wherein in the recess (16) inserted state of the web (20) of the, in particular corrugated, area (24) on, in particular in the direction of the front end of the web (20) on the main body (10). survives.

14. The device according to at least one of claims 1 to 13, wherein the abrasive surface (30) facing region of the web (20) at one of its two ends or at both ends relative to the base body (10) has a projection (26).

15. The device according to at least one of claims 1 to 14, wherein the abrasive surface (30) facing the region of the web (20) bevelled or angled at one of its two ends or at both ends, in particular by about 45 degrees, or bent, in particular curved or curved.