DE7718937U1 - CUTTER FOR FLOOR COVERINGS - Google Patents

Description

Ί I '. . PATENT LAWYERS

DiPL-ING. LUDEWIG Dipl.-Phys. BUSE graduate phys. MENTZEL

56 WUPPERTAL 2 UNTERDORNEN 114 CALL (02121) 553611/12

37 password; "Carpet cutter"

Company Köhler & Co., 4020 Mettmann, Schöllersheiderstr. 3 |

Cutting device for floor coverings. |

The invention relates to a cutting device for floor coverings, in particular for cutting in the wall connection area Floor covering raised to the skirting board, with the cutting knife fastened in a blade holder.

For reasons of hygiene, it is advantageous if the usually There are no joints in the corner area of the floor and walls or the skirting boards attached to the walls, as impurities can get stuck in the crevices and crevices that normally occur, which are caused by the normal Cleaning process are not detectable. It has therefore been found to be advantageous if the floor covering, in particular PVC hard coverings in the corner area between the wall and the floor, forming a cove, up to about the height of the skirting board the wall is pulled up. For this purpose, in the corner area of the floor and wall, there is a coving rod with an upper limit for the floor covering forming angled strip arranged. This coving rod supports the floor covering during the upper leg of the angled strip covers the cut edge of the floor covering.

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7718937 03/09/78

A floor covering to be laid in this way can only be carried out in a complex manner with the previously known cutting devices Cut the method, because after the laying of the slightly larger than required floor covering, its edges either after measured with each pressure, removed again and placed in a loop on a surface using a guide rail must be cut with a carpet knife or the raised floor covering must be below the angle leg cut perpendicular to the wall. While the former cutting process is very complex, the latter is Cutting process in the corner area just above the floor with the known cutting devices in the form of carpet knives difficult as the knife can easily get lost in the floor covering and either not under the Leg of the cover strip fits or does not close under the angle leg.

The object of the invention is to create a cutting device for floor coverings with which the Edge of a floor covering pulled up onto the wall can be cut to match at an even distance from the floor.

According to the invention, this object is achieved by a bottom-side sliding surface having sliding foot, which is connected to a column extending in the vertical direction stands on which the blade holder is fixed in a height-adjustable manner. This is what is set in the blade holder Cutting knife, on the one hand, can be precisely adjusted to the floor clearance given by the installation of the cover angle strip, and on the other hand can by parallel displacement of the cutting knife for Floor surface of the floor covering can be cut exactly to fit without removing the already laid floor covering from the wall must be deducted. Such a cutting process is a considerable relief and is quick and easy perform.

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7718937 O9.0i78

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In order to avoid damage to this covering during the parallel displacement of the sliding foot on the floor covering in particular to be excluded when using textile coverings, according to a design feature of the invention, the sliding foot a triangular sliding surface with a rounded tip, to which the column fixing the knife holder is adjacent and from which the sliding surface has a raised edge on two sides of the sliding foot. Here is the The sliding surface of the sliding foot in the area of its rounded tip for pressing the floor covering onto the fillet rod in the corner area between the wall and the floor, preferably in the manner of a sled runner, shortening the edge surrounding the sliding surface pulled up. In order to adapt to the concave curvature of the fillet rod, the area is raised like a slide runner the sliding surface is advantageously curved in a convex manner.

So that a twisting of the blade holder around the column that fixes it can be reliably prevented, points to another Design feature of the invention, the column comprised by the blade holder has a square cross-section to which the of the column penetrated opening in the blade holder is adapted. A determination of the blade holder on the column can be achieved according to a further feature of the invention, in that the blade holder is firmly connected to a sleeve encompassing the column, in which one the blade holder height-adjustable fixing clamping screw is arranged.

According to a further design feature of the invention there is the blade holder to create a protrusion of the knife edge over the sliding foot of two on top of each other arranged, oval plates congruent with the rounded tip of the sliding foot, one of which is inclined with one is provided for the cutting knife extending to the plate longitudinal axis. Establishing the cutting knife in the knife holder is preferably carried out by a clamping member, which through a hole in the upper plate in the receiving groove for

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7716937 09.0178

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ft Pl H)) llll
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ta ■ trained I. • -r 4 - · · • t that Knife entry » To the Clamp support of as Knurled screw

This is a clamping member according to a further embodiment of the invention screwed into a spring clip connected to the blade holder.

To handle the cutter safely and with perfect parallel shift with the blade firmly in the raised position To be able to press in the floor covering, a c-shaped handle is attached to the sliding foot according to a further feature of the invention, which is firmly connected at the top to the column.

The invention is shown in the drawing in an exemplary embodiment, which is explained in more detail below. Show it:

1 the cutting device in a side view,

Fig. 2 the cutting device in a partially broken open Top view,

Fig. 3 the cutting device in a broken off at the top Longitudinal section along the line III-III of Fig.2 and

4 shows the blade holder in a section along the line IV-IV of FIG.

The cutting device consists essentially of a sliding foot 10, a column 11 protruding from this, between its upper, free end and the sliding foot 10, a C-shaped handle 12 is arranged and made of one on the column 11 as well lockably arranged blade holder 13.

7718937 09.0178

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The sliding foot 10 has an approximately triangular sliding surface
14, which is provided with a rounded tip 15.
Starting from this rounded tip, there are two sides
the sliding surface 14 is surrounded by a raised edge 16.
The edge 16 and the bottom part of the sliding foot 10 having the sliding surface 14 are preferably made of metal,
however, they can also be made of plastic. Included
are the underside of the sliding foot 10 forming the sliding surface 14 and the outside of the edge 16, for example \

smooth by polishing and planar in order to avoid scratching, ^L and entanglements during the displacement on the carpet \. In the area of the rounded tip 15 is with; the bottom part of the sliding foot having the sliding surface 14
10 a column 11 - in the illustrated embodiment 1 by welding - connected. As can be seen in particular from FIG. 2, this column 11 has a square cross section i around which the blade holder 13 engages. The sliding j

surface 14 extends in the region of its tip 15 Schlittenkufen- \-like bent upwards and has a convex curvature, \ with which the floor covering 17 in the corner area between the wall ι

and the floor is pressed against the fillet rod 18 during the cutting \ process.

The blade holder 13 consists of two interconnected, f

oval plates 19 and 20, whose outer Kuntur the ab- ■

rounded tip 15 of the sliding foot 10 corresponds. The two ;

oval plates 19, 20 have an opening 21 which the \

Square cross-section of the column 11 is adapted. Also is; in the upper plate 19 one inclined to the longitudinal axis of the plate

extending receiving groove 22 arranged in which a cutting |

knife 23 can be inserted together with a pressure piece 24 '. To fix the cutting knife 23 in the blade holder 13
is in the upper plate 19 in its front area an in

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7718937 O9.öaz8

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the recess 22 penetrating hole 25 is arranged, which is penetrated by a clamping member 26. This clamping member is formed by a knurled screw 27 which is inserted into a threaded bore 28 aligned with the hole 25 in the plate 19 is screwed in, the threaded bore 28 being located in a spring clip 29 firmly connected to the upper plate 19. When the knurled screw 27 is tightened, its front end presses firmly onto the cutting knife via the pressure piece 24 23, so that this is in the desired position with the tip protruding beyond the blade holder 13 in the receiving groove 22 of the blade holder is fixed. I.

The blade holder 13 is provided with a sleeve arranged centrally to its opening 21, which in the case of the illustrated Embodiment is welded to the top plate 19. In this sleeve 30 encompassing the column 11 is a clamping screw 31 screwed in, through which the blade holder is clamped to the column 11 after its height adjustment can.

As can be seen in particular from FIG. 1, the column 11 welded to the sliding foot 10 is at its free end also welded to a flat piece 32, which in turn is embedded in the C-shaped handle and screwed to it is. The lower leg of the handle 12 is also screwed to the bottom part of the sliding foot 10, which has the sliding surface 14, so that the handle has a firm hold on the cutter.

The illustrated and described embodiment of the The invention only reproduces these in one example, to which the invention is in no way restricted. Rather are still many other embodiments of the invention are possible.

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7718937 09.0178

For example, it is conceivable to use quick-release clamping devices instead of the clamping screws used, for example based on small eccentric elements. The sliding foot 10 could also have a rectangular shape which is pointed and rounded in the region of the column 11. The cross section of the column 11 is not flattened in the longitudinal direction, a circular cross section having column einges üZt ^ are applied to the illustrated and described ^w orm bound, but it could.

7718937 09.fr3.78

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«» Ί ι aa oj 'IS List of reference symbols Sliding foot JlI 0 O 1 J t J
.-ing. LUDEWIG DSPL-PHYS. BUSE - graduate phys. MENTZEL pillar DIPL 56 WUPPERTAL 2 UNDERDORNEN 114 - RUF (02121) 553611/12 Girff 37 Blade holder Sliding surface 10 Pointed, rounded 11th edge 12th Flooring 13th Fillet rod r 14 Plate, upper 15th Plate, lower 16 opening 17th Receiving groove 18th Cutting knife 19th Pressure piece 20th Hole in 19th 21 Clamping member 22nd Rande1s Ehraube 23 Threaded hole 24 Spring clip 25th Sleeve ). ^26th Clamping screw 27 Flat piece 28 29 30th 31 32

Claims (10)

■ * t DiPL-ING. LUDEWIG · diVlIphys. BUSE graduate phys. MENTZEL WUPPERTAL 2 · UNTERDORNEN 114 · CALL (02121) 553611/12 Keyword: "Carpet cutter" Claims: 1. Cutting device for floor coverings, especially for cutting of floor covering raised to skirting height in the wall connection area, with the cutting knife in a blade holder is attached, characterized by a bottom-side sliding surface (14) having Sliding foot (10), which runs in the vertical direction with a Column (11) is connected to which the blade holder (13) is fixed in a height-adjustable manner. 2. Cutting device according to claim 1, characterized in that the sliding foot (10) is triangular. Sliding surface (14) with a rounded tip (15) which is adjacent to the column (11) having the blade holder (13) and from which the sliding surface (14) is surrounded on two sides by a raised edge (16). 3. Cutting device according to claim 1 or 2, characterized in that that the sliding surface (14) in the area of its rounded tip (15) the surrounding edge (16) shortening, pulled up like a sled runner. 4. Cutting device according to claim 3, characterized in that the area of the slide runner-like raised Sliding surface (14) is convexly curved. -9- 5. Cutting device according to one or more of the preceding claims, characterized in that the the blade holder (13) encompassed column (11) has a square cross-section has, to which the opening (21) in the blade holder (13) penetrated by the column (11) is adapted. 6. Cutting device according to claim 5, characterized in that the blade holder (13) with a column (11) comprehensive sleeve (30) is firmly connected, in which ej ".e the blade holder (13) adjustable in height Ql clamping screw (31) is arranged. 7. Cutting device according to one or more of the preceding claims, characterized in that the blade holder (13) of two oval, one above the other, with the rounded tip (15) of the sliding foot (10) congruent plates (19, 20), one of which is inclined to the plate's longitudinal axis Receiving groove (22) for the cutting knife (23) is provided. 8. Cutting device according to claim 6, characterized in that the upper plate (19) has a hole (25) for passage p. one the cutting knife (23) in the receiving groove (22) fixing clamping member (26) contains. 9. Cutting device according to claim 8, characterized in that the clamping member (26) for fixing the cutting knife (23) screwed into the blade holder (13) from a spring clip (29) connected to the blade holder (13) Knurled screw (27) is formed. 10. Cutting device according to one or more of the preceding Claims, characterized in that a σ-shaped Girff (12) is attached to the sliding foot (10), the top end with the column (11) this is firmly connected across the board. 7718937 09.0178