EP1361032B1 - Tile cutter with a cutting tool - Google Patents

Abstract

The tile cutting appliance has a cutting tool (11) on a swing arm (6), operated by a lever (8). It is attached to a slide (5) which moves along a linear guide (4). A breaker (12) snaps off the tile at the cut score line. The breaker has a carrier strap on a swing axis (19) at the swing arm, which is held and locked in an upper rest position and can be moved down into an active setting. The locking action is applied by a radial projection over the side edge of the carrier strap working with a bolt (22) of an elastic rubber or plastics material at the swing arm.

Description

The invention relates to a tile cutter with a cutting tool, the a pivotable by means of an actuating lever pivot arm arranged which is on a slidable along a guide cutting carriage is pivotally mounted and further a crusher for breaking a means the cutting tool incised along its surface tile, wherein the crusher has a support tab pivotable about a pivot axis is mounted on the pivot arm, and pivoted between an upward, passive position in which it is held by a detent and one after pivoted down, active position is adjustable.

Such tile cutters are known. The tile to be cut becomes one placed below the guide arranged support plate. By means of the operating lever the swivel arm is pivoted down until the as a cutting wheel trained cutting tool rests against the tile surface. At after pressed down lever is the cutting tool by moving of the cutting carriage along the guide over the tile surface and scratch these. As a result, the swivel arm with the cutting tool raised by pivoting the operating lever and the crusher swung down to its active position. By swinging down the Operating lever, the crusher is pressed against the tile surface and broken the tile.

To fix the crusher in its upwardly pivoted, passive position is a latching device in a prior art tile cutter of this type present, which is formed by a ball-spring catch. In the swivel arm There is a hole in which a ball is inserted, which is from a Spring is pressed against the side surface of the support tab of the crusher. In the Side surface of the support bracket is provided a recess in which the ball engages in the upwardly pivoted passive position of the crusher.

Since this locking device associated with a certain manufacturing effort is, such a locking device in another previously known tile cutter been omitted. When lowering the arranged on the swivel arm Cutting tool on the tile surface by means of the actuating lever Here, the user must manually swivel the crusher up until the Cutting tool rests against the tile surface. This affects the ease of use of the tile cutter.

Document US 1 995 741 discloses the closest prior art available.

The object of the invention is a tile cutter of the type mentioned to provide that easier and cheaper than the conventional tile cutter This type can be produced, this without affecting the ease of use. According to the invention, this is achieved by a tile cutter with the features of claim 1.

The latching device of the tile cutter according to the invention is very simple trained and inexpensive to produce, with long-term reliable Function is achievable.

Fig. 1

eine schematische Seitenansicht eines Fliesenschneiders;

Fig. 2

eine perspektivische Darstellung des Brechers;

Fig. 3

eine Seitenansicht des Brechers;

Fig. 4

einen Schnitt entlang der Linie AA von Fig. 3 zusammen mit dem Rastteil, in der nach unten verschwenkten, aktiven Stellung des Brechers;

Fig. 5

einen Fig. 4 entsprechenden Schnitt, in der nach oben verschwenkten, passiven Stellung des Brechers;

Fig. 6

eine Draufsicht auf den Brecher mit einem Abschnitt des Schwenkarms, an dem dieser gelagert ist, in der nach unten verschwenkten, aktiven Stellung des Brechers;

Fig. 7

eine Seitenansicht eines weiteren Ausführungsbeispiels eines Fliesenschneiders und

Fig. 8

und Fig. 9 ein weiteres Ausführungsbeispiel der Brecheinrichtung in einem den Fig. 4 und 5 entsprechenden Schnitt, in der nach oben verschwenkten, passiven Stellung und der nach unten verschwenkten, aktiven Stellung des Brechers.

Further advantages and details of the invention are explained below with reference to the embodiment illustrated in the accompanying drawings. In the drawing show:

Fig. 1

a schematic side view of a tile cutter;

Fig. 2

a perspective view of the crusher;

Fig. 3

a side view of the crusher;

Fig. 4

a section along the line AA of Figure 3 together with the locking part, in the downwardly pivoted active position of the crusher.

Fig. 5

a section corresponding to FIG. 4, in the upwardly pivoted, passive position of the crusher;

Fig. 6

a plan view of the crusher with a portion of the pivot arm, on which it is mounted, in the downwardly pivoted active position of the crusher;

Fig. 7

a side view of another embodiment of a tile cutter and

Fig. 8

and FIG. 9 shows a further embodiment of the breaking device in a section corresponding to FIGS. 4 and 5, in the upwardly pivoted, passive position and the downwardly pivoted, active position of the crusher.

The tile cutter has in a conventional manner a support plate 1, on which a tile to be cut is placed. At the two ends are on the support plate uprights 2, 3 set, one of the uprights 2, 3 spanning and at a distance above the support plate and parallel to this running guide. 4 in the form of a guide rail. Along this guide 4 is a cutting carriage 5 movable. At the bottom of the cutting carriage 5 is at a from this protruding tab a pivot arm 6 about a pivot axis. 7 pivoted. At the top of the cutting carriage 5 is at a upwardly projecting tab an actuating lever 8 pivotally mounted, which has a handle 9 at its free end. Between the operating lever 8 and the pivot arm 6 extends both on the actuating lever. 8 as well as articulated on the pivot arm 6 connecting arm 10, the pivoting movement of the operating lever 8 transmits to the pivot arm 6.

At the free end of the pivot arm 6 is a cutting tool 11 in the form of a rotatably mounted on this mounted cutting wheel.

Furthermore, the swivel arm 6 carries a T-shaped crusher 12. This has two breaker plates 13, 14, the obtuse angle 15 with each other lock in. In the connecting regions of the two breaker plates 13, 14 is a support bracket 16 of these, which in the region of its free end has an opening 17. Through this occurs a bolt 18, which is the pivot axis 19 of the pivotally mounted on the pivot arm 6 crusher 12 forms. Of the Swivel arm 6 has two mutually parallel arms, between the the free end of the support bracket 16 projects and which the two ends of the Swivel axis 19 forming pin 18 record in corresponding holes.

In Fig. 1, the crusher 12 is in its upwardly pivoted, passive position shown. In this position of the crusher is launched on the support plate 1 Tile on its surface cut by the cutting tool 11 lowered onto the tile and pressed against the tile and by moving of the cutting carriage 5 along the guide 4 on the tile surface to be led. As a result, the operating lever 8 and thus the swivel arm 6 is raised and the crusher 12 is manually lowered in its downward, active position pivoted (Fig. 4). In this close the crusher plates 13, 14th with the tile surface acute angle (in a side view corresponding to FIG. 3). The operating lever 8 is pressed down and the tile through the Pressure of the crushing plates 13, 14 broken.

To fix the crusher 12 in its upwardly pivoted, passive position a latching device is provided. For this purpose, the support bracket 16 a projecting radially beyond its side edge 20 (with respect to the pivot axis 19) Nose 21, wherein the side edge 20 in the area around the nose 21 circular arc (with the pivot axis 19 as the center) is formed. At the Swivel arm 6 is further a consisting of an elastic material locking part 22 arranged, which in the embodiment shown by a Rubber stud is formed. This rubber stud is with its two ends on the mutually parallel arms of the pivot arm 6 in corresponding Drilling defined (eg by swelling). When pivoting the Brecher's 12 between his active and his passive position becomes the nose 21 past the locking part 22, and shortly before the crusher 12 its passive Has reached position, wherein the locking member 22 is deflected elastic. In the pivoted upward passive position of the crusher is the upper side surface the nose 21 on the locking part 22 and is of this to prevent a down pivoting of the crusher 12 supported about the pivot axis 19.

Instead of a rubber bolt could for the locking part 22, for example, a be provided elastic plastic bolt. To increase its elastic Deformability this could also be a longitudinal, slit-shaped Have recess. Also could be the rubber stud or plastic stud have a central opening and thus be tube-shaped. For example is a piece of a conventional pneumatic hose as a locking part can be used advantageously. Instead of a bolt-shaped training, the locking part be designed in another form. Conceivable and possible would be further also the use of a one-sided clamped (in one of the arms of the swivel arm 6) metal wire, in particular a steel wire from a Spring steel, which cooperates with the nose 21.

Another embodiment of a tile cutter is shown in FIG. On a support plate 1 2, 3 are attached to both ends, which a Guide 4 in the form of two parallel (in the view of FIG. 7 consecutive) Carries guiding columns. Along the guide columns is a cutting carriage 5 displaceable, on which a pivotally mounted about a pivot axis 7 Swivel arm 6 is arranged, which in this embodiment in shape a two-armed lever is formed. On one lever arm of the swivel arm 6 this is connected to an actuating lever 8, at the other lever arm of the Swivel arm 6 is a cutting tool 11 in the form of a rotatable on this mounted cutting wheel arranged. This lever arm of the swing arm 6 carries Furthermore, in the region of its free end, a crusher 12, which is about the pivot axis 19 is pivotable. Pivoted in the up shown in Fig. 7, passive position is the crusher, in the already described form may be formed, held by a latching device, which is also in the already described form may be formed and has a locking part 22.

In Figs. 8 and 9 is another embodiment of a crusher with a Locking device shown. In the embodiment according to FIGS. 8 and 9 the use in connection with a tile cutter of FIG. 1 shown type shown. The locking device is in turn of a on the Side edge 20 of the support bracket 16 of the crusher 12 protruding nose 21 in conjunction formed with a locking part 22 'made of an elastic material. The locking part 22 'is held on a portion of the pivot arm 6 (which in turn having parallel arms between which a cutting wheel is rotatably mounted), wherein the locking part 22 'here perpendicular to the pivot axis 19 of the crusher 12 extends. In the region of its free end, the latching part 22 'has a recess 23, which the nose 21 in the upwardly pivoted, passive position of the crusher 12 receives, whereby the crusher 12 is held in this position. The Locking part 22 'may for example made of metal or of an elastic plastic consist.

In the embodiment of a tile cutter shown in Fig. 7 can the crusher 12 are brought into its active position by the operating lever is pulled upward until the crusher 12 abuts the guide 4 and the crusher 12 is pivoted so far down that the nose 21 except Engagement of the locking part 22 passes.

Different modifications of the embodiment shown, for example with respect to the cutting tool 11, the cutting carriage 5 and so on conceivable and possible, without departing from the scope of the invention.

Key to the REFERENCE NUMBERS

1

support plate

2

stayer

3

stayer

4

guide

5

cutting slide

6

swivel arm

7

swivel axis

8th

actuating lever

9

handle

10

connecting arm

11

cutting tool

12

breaker

13

breaker plate

14

breaker plate

15

corner

16

carrying strap

17

opening

18

bolt

19

swivel axis

20

margin

21

nose

22, 22 '

catch part

23

deepening

Claims (7)

1. A tile cutter having a cutting tool (11) which is arranged on a pivot arm (6) which is pivotable by means of an actuating lever (8) and is pivotably mounted on a cutting slide (5) which is displaceable along a guide (4) and furthermore supports a breaker (12) for breaking a tile which has been cracked along its surface by means of the cutting tool (11), the breaker (12) having a mounting plate (16) which is mounted on the pivot arm (6) such that it is pivotable about a pivot axis (19) and which is adjustable between an upwardly pivoted passive position, in which it is held by a latching device, and a downwardly pivoted active position, characterised in that the latching device is formed by a lug (21) protruding beyond the lateral edge (20) of the mounting plate (16) and a latching part (22, 22') made from a resiliently deformable material, which cooperates with the lug (21) and is held on the pivot arm (6).
2. A tile cutter according to Claim 1, characterised in that the latching part (22, 22') is formed by a rubber pin or synthetic material pin aligned parallel to the pivot axis (19) of the mounting plate (16).
3. A tile cutter according to Claim 2, characterised in that the rubber pin or synthetic material pin has a central opening and is constructed in the shape of a small tube.
4. A tile cutter according to Claim 2 or Claim 3, characterised in that the rubber pin or synthetic material pin is fixed by its two ends in corresponding bores in mutually parallel-extending arms of the pivot arm (6).
5. A tile cutter according to Claim 1, characterised in that the latching part (22, 22') is formed by a resilient metal wire which is aligned parallel to the pivot axis (19) of the mounting plate (16) and is fixed with its one end on the pivot arm (6), its other end being free.
6. A tile cutter according to one of Claims 1 to 5, characterised in that, in the upwardly pivoted passive position of the breaker (12), the upper lateral face of the lug (21) abuts against the latching part (22, 22') to prevent the breaker (12) from pivoting down into its active position.
7. A tile cutter according to one of Claims 1 to 6, characterised in that, as the breaker (12) is pivoted between its active position and its passive position, the lug (21) is guided past the latching part (22) with the latching part (22) deflecting in resilient manner, or the lug may snap into a depression (23) in the latching part (22').

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